CN101583750A - Horizontal-multi-needle quilting machine and method - Google Patents
Horizontal-multi-needle quilting machine and method Download PDFInfo
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- CN101583750A CN101583750A CNA2006800415732A CN200680041573A CN101583750A CN 101583750 A CN101583750 A CN 101583750A CN A2006800415732 A CNA2006800415732 A CN A2006800415732A CN 200680041573 A CN200680041573 A CN 200680041573A CN 101583750 A CN101583750 A CN 101583750A
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Abstract
A multi-needle quilting machine (10) and method uses two separately moveable bridges (21, 22) having selectively operable chain-stitching element pairs. Either the material (12) or the bridges (21, 22) or both may be moved relative to the frame (11). Control schemes are provided to quilt continuous patterns, discrete patterns, linked multiple patterns, 360 degree patterns, or closely spaced patterns, preferably using a single drive servo motor (35, 36, 45, 46) for each bridge (21, 22) with the needle and looper drives phased relative to each other through a differential transmission. The needles and loopers can be driven out of phase, which is particularly useful in starting stitching sequences reliably. The parameters that define different products are used by a machine controller as a basis for deriving different quilting process steps, such as tack stitch sequences, thread wipe cycles and paths, thread pull-off distances and tension, and the need to sew additional lines to stabilize the material layers. Operator selection between quality and speed modes is provided. Simultaneous sewing of continuous and discontinuous patterns is provided.
Description
This PCT application requires following U.S. Provisional Application No.
The No.60/715 that on September 9th, 2005 submitted to, 423;
The No.60/762 that on January 26th, 2006 submitted to, 471;
The No.60/763 that on January 27th, 2006 submitted to, 172.
For the U.S.: the application still is the partial continuous application of following application:
The sequence number of submitting on January 21st, 2005 is 11/040,499 U.S. Patent application, and it is open on August 18th, 2005, publication number is US 2005/0178307, this application is 10/804 for the sequence number of submitting on March 19th, 2004, the partial continuous application of 833 U.S. Patent application, this application is the partial continuous application of the PCT application of PCT/US03/07083 for the application number of submitting on March 6th, 2003, this application requires the priority of following U.S. Provisional Patent Application, and by with reference to and merge at this definitely: the sequence number of submitting on March 6th, 2002 is 60/362,179; The sequence number of submitting on February 11st, 2003 is 60/446,417; The sequence number of submitting on February 11st, 2003 is 60/446,430; The sequence number of submitting on February 11st, 2003 is 60/446,419; The sequence number of submitting on February 11st, 2003 is 60/446,426; The sequence number of submitting on February 11st, 2003 is 60/446,529; And the sequence number of submitting on February 14th, 2,003 60/447,773, all these applications are all in conjunction with being hereby incorporated by reference; And
The PCT application PCT/US2005/008312 that submits on March 11st, 2005, it is the priority of 10/804,833 and 11/040,499 U. S. application that this application requires sequence number, all these applications are also in conjunction with being hereby incorporated by reference.
And with the sequence number of submitting on March 6th, 2002 be that 60/362,179 U.S. Provisional Application is relevant, this application is also in conjunction with being hereby incorporated by reference.
Technical field
The present invention relates to the quilting technology, specifically, relate to the quilting technology of using the high speed multi-needle quilter.More particularly, the present invention relates to spininess chain-type stitch quilting machines, for example be used to process the type quilting machines of the quiited products that mattress cover or other form by the wide braided fabric of multilayer material usually.
Background technology
Quilting is a kind of sewing technology, by this sewing technology multi-layered textile material and other fabrics is engaged, and has ornamental and functional compressible material piece (compressiblepanel, cloth) concurrently with production.Stitching flower type is used to use sewing pattern to decorate the material piece, and the layers of material that while stitching itself will constitute quilt (quilt) is bonded together.The processing of mattress cover relates to the application of extensive quilting technology.Extensive quilting technology uses the high speed multi-needle quilter to form the mattress jacking piece of a series of braided fabric along multilayer material usually.These extensive quilting technologies are used the chain-type stitch sewing head usually, and this sewing head produces the elasticity stitching chain that can be carried out feed by a large amount of bobbins.Some this machine can be with per minute 1500 pins or the operation of higher speed, and drives row or more row's pins, and every row's pin is made colored type simultaneously on width is 90 inches or wideer braided fabric.Faster speed, higher colored type flexibility and stronger operating efficiency are the eternal targets of the quilting technology in the bedding industry.Traditional multi-needle quilter fast and efficient, but less use in the production of high-end market mattress cover product and bedcover because but they are slow process on single needle that flexibility is higher or the crosspointer quilting machines in speed usually.
Traditional multi-needle quilter has three axis of movements.X-axis can think the material braided fabric when it moves through the quilting position and moves motion vertically.Usually, the bidirectional-movement that provides the material braided fabric to move on the direction of advancing or retreating so that sew in any direction, needs this bidirectional-movement when for example quilting 360 degree are spent types on material.The material part (material accumulator) that adds up is accompanied by this two-way machine usually, thereby need not to change the braided fabric material along under the situation of the direction of the entire length of quilting line, just the part of braided fabric can be turned to.Also, also be used to form quilting flower type by braided fabric is moved the Y-axis that motion is set from a side direction opposite side.Usually, it is static that quilting mechanism keeps in the quilting process, influences the quilting of various colored types by the motion of control material.
X-axis and Y-axis and by the plane parallel of quilted material, this plane is generally horizontal plane.The 3rd (Z axle) is vertical with material plane, and has defined the nominal direction of the motion of the reciprocal pin that forms the quilting suture.Usually the pin on the sewing head cooperates with the opposition side of material or the ring (looper) that becomes of downside on above the material plane, this one-tenth ring usually on the direction of X-axis with the reciprocating motion vertically of Z axle.In traditional multi-needle quilter, comprise that the sewing mechanism top of needle actuating device is carried by large-scale fixed bridge.The sewing mechanism bottom that comprises into the ring drive unit is connected on the cast iron platform.Each can be connected with for example triplex row sewing element in each superstructure and the substructure.General all pins all are connected on the single main shaft and by this main shaft drives.
Traditional multi-needle quilter uses single large-scale pressure foot, and this pressure foot presses the whole braided fabric part across material in the sewing zone of braided fabric width.In the typical machine that uses in the mattress industry, the area of the material that every this pressure foot of seam one pin is pushed down size surpasses 800 square inches, and material thickness is depressed into 1/4 inch such little.When material withdrawed from, pressure foot must still be depressed into material about 7/16 inch after pin is forming each pin.Owing to moving with respect to the sewing element when material is below still being positioned at pressure foot, to form colored type, therefore the flower type can be twisted because of the pulling force that is parallel to material plane that is applied thereto usually.These traditional machines sink greatly, and have occupied sizable area on bedding source mill ground.
In addition, multi-needle quilter lacks flexibility.Major part all provides the fixing pin of embarking on journey or becoming array, and these fixing pins are operated simultaneously, to stitch out identical colored type and identical stitching series.Need carry out the physics setting, rearrange or remove pin during change flower type, and be that the pin that has changed layout is put on line.Thisly reconfigure the time that will spend operating personnel, and cause suitable downtime.
Traditional chain-type stitch quilting machines be used to use by the rotation shaft-driven crank mechanism pass thick multilayer material to carry out quilting with making one or more pin reciprocating motions.The power of drive motors and the inertia of linkage make pin pass material.The motion of the pin of Chan Shenging is sine curve traditionally like this, is promptly defined by the represented curve of equation y=sine x.For this application, the motion of not satisfying this equation will be called the non-sinusoidal cuve formula.Thereby (for example material top 1 inch position) is passed down through and is depressed into about 1/4 inch material from the position of height with needle tip in the motion of pin, when arriving the about 1/2 inch point in material below, and its reverse of moving.The pin band the needle thread passing material, and sets out the ring that the line that is become ring is picked up in the one-tenth ring side of material.In the one-tenth ring side of material, the mode that becomes ring or hook to rotatablely move with sine centers on an axle reciprocating motion.Become ring to position, make the tip of this one-tenth ring enter the needlework ring that is provided with by pin, extend through the needlework ring of the one-tenth ring side of material will become the ring wire loop with respect to pin.Become the motion of ring and the synchronized movement of pin, be in the downward scope in its cycle thereby work as pin, the needlework ring is become the ring line to pick up.Then, pin lifts and withdraws from from material, stays needlework and is becoming ring and becoming extending of ring wire loop on every side.
When pin when material withdraws from, material is with respect to the displacement of sewing element, the descending once more material that passes of pin, the point that the position that this passes and pin had before penetrated is apart from the length of a stitching, to form a stitching.When pin passed material once more, pin was inserted through into the next one ring of needlework in the ring of ring line formation, and this one-tenth ring wire loop is before become ring to sting out and pass previous needlework ring.On this point in cycle, this withdraws from from the needlework ring in its sinusoidal reciprocating motion to become ring, staying into the ring wire loop extends on every side at sewing auxiliary element (being known as locator (retainer) in a lot of machines), this sewing auxiliary element makes into the ring wire loop and keeps open, to treat the descending next time of pin.In this process, the needlework ring is formed and passes into the ring wire loop, become the ring wire loop alternately to be formed and pass the needlework ring simultaneously, thereby the one-tenth ring side of material produces the needlework alternately and the chain of the ring that becomes the ring line, and a series of stitchings that only formed by needlework in the pin side of material as seen.
By experience for many years, pin in the chain-type stitch formation machine is adjusted with the traditional sine curve formula that becomes ring, pick up to keep pin to encircle reliably, thus can dropped stitch in the sewing process.In express stitcher, the motion conditions of pin is, in the cycle or 120 degree pins in the cycle, the tip of pin is positioned at the below on the needle plate plane of material plane below or backing material at about 1/3 pin.
The pin of working as in the pin cycle extends through in the cycle portions of material, and preferred materials does not have the motion with respect to pin.The inertia of machine part and material makes and moves between the stitching with respect to pin that can occur some materials when pin passes material.Thereby make the pin skew, this may cause causing dropped stitch because of becoming ring omission needlework ring or pin to omit into the ring wire loop, perhaps causes the pattern profile disappearance because of material elongates or distortion causes.In addition, the restriction of time of needle penetration fabric has been defined the speed that pin passes fabric, this has determined the ability of the multilayer material that needle penetration is thick.Thereby the increase of pin speed need increase the distance of needle stroke, and this causes fabric below to have the needlework of too much absent-mindedness, and these needlework must be strained so that the stitching in the stitching forming process is tightened.Correspondingly, the motion of traditional pin has caused restriction to chain-type stitch sewing and particularly high speed quilting.
In addition, the one-tenth ring head on the known multi-needle quilter is provided as the motion of ring by translating cam driven member on cam face, and this needs lubricating oil, and has produced and need the wearing terrain safeguarded.
In addition, the chain-type stitch that uses on multi-needle quilter forms element and respectively comprises pin usually and become ring or hook, this pin reciprocally passes material from the face side of material, this one-tenth ring or be hooked in vibration on the path of dorsal part of material and pass the top line ring that is formed at the dorsal part of material by puncture needle.Chain type sewing relates to by pin and the interaction that becomes ring of material dorsal part and is formed between the bottom line of top line and material dorsal part the alternately stacked series or the chain of interlocking, and this interaction while forms top line stitching series clearly in the material top side.Form stitching series reliably and need accurately set pin and the path that becomes ring of each sewing element group, thereby be pin or become ring can not omit picking up relative wire loop.The omission of this wire loop can produce dropped stitch, and dropped stitch is the flaw in the sewing flower type.
When using quilting machines at first, and in the process of using quilting machines, must regulate with the relative position that becomes ring pin termly.Usually, this relates to becoming ring to regulate in the lateral adjustments that it vibrates the position on axis.In multi-needle quilter, carry out this adjusting with the path that will become ring be arranged on top line with the tight approaching position of the pin side directly over the pinprick that passes.In this position, form the ring of needlework on the next door of pin, become the tip of ring to pass this pin and insert the bottom line ring.At U.S. Patent application No.5, describe the formation of these rings and the interlocking of stitching chain in detail in 154,130, this patent application is by with reference to being herein incorporated.
The adjusting of one-tenth ring is manual procedure normally.Normally under the situation of machine down, regulate; use the hand-operated tools of some kinds to unclamp, reconfigure, check and tighten into ring by the technical staff; make when pin is arranged in pin and is treating near the lowermost end in path of quilted material bottom side operation, the one-tenth ring near this pin pass with passing or supporting a little this pin.This adjusting will spend a certain amount of time of operating personnel.In multi-needle quilter, the quantity of pin has a lot, thereby the adjusting time may be very long.The quilting production line only needs stop work nearly one hour or more time for the adjusting of pin, and this phenomenon is unrare.
In addition, owing to become ring to be adjusted to manual procedure, therefore contact regulating element difficulty, determine relevant one-tenth ring and pin the position difficulty and when the Lock Part of fixing or locked component, keep the difficulty of the position of regulating element to cause regulating wrong source.
The chain-type stitch that uses on multi-needle quilter forms element and respectively comprises pin usually and become ring or hook, this pin reciprocally passes material from the face side of material, this one-tenth ring or be hooked in vibration on the path of dorsal part of material and pass the top wire loop that is formed at the dorsal part of material by puncture needle.Chain type sewing relates to by pin and the interaction that becomes ring of material dorsal part and is formed between the bottom line of top line and material dorsal part the alternately stacked series or the chain of interlocking, and this interaction while forms top line stitching series clearly in the material top side.Top line or needlework are from the top side of fabric or in the face of side penetrates fabric, and form ring at the bottom side or the dorsal part of fabric.Bottom line is retained in the dorsal part of fabric uniquely, and strikes a bargain for the chain of interlocked rings in the annular of this dorsal part and top line.
The colored type that high speed multi-needle quilter (for example being used to make the quilting machines of mattress cover) sewing series usually flower type element does not disconnect.In this sewing, carry out tailor-tacking, when a colored type element quilting finished, top line cut off at least.Fabric is advanced with respect to pin,, carry out more tailor-tacking this moment and restart sewing to begin new colored type element.A kind of high speed multi-needle quilter of the type has been described in the U.S. Patent No. 5,154,130 of above reference.This patent describes a kind of method of cutting off line in this kind multi-needle quilter particularly in detail.Correspondingly, need a kind of more reliable and more effective method of in multi-needle quilter, carrying out the spool reason.
These features of high speed multi-needle quilter and requirement and above-mentioned shortcoming have hindered traditional quilting machines to realize higher speed and stronger colored type flexibility.Correspondingly, particularly for a large amount of quiltings that use in the bedding industry, need overcome these obstacles and improve the operating efficiency of quilting process.
In addition, realize that the material (the normally form of braided fabric) that a kind of method is easily changed into multi-needle quilter and provided is a kind of eternal demand.For providing of braided fabric, this demand comprises that the length of the material that will supply with that will newly provide joins the demand of method of the trailing edge of the material braided fabric that offers machine to.In a lot of quilting machiness, particularly the braided fabric that proposes in above-mentioned application vertically upward moves through in the machine of quilting position, and the material of supply enters machine near the floor.This helps farthest to reduce the resistance on the braided fabric especially, and when the stretchable material of quilting, this resistance will cause distortion of materials.For example, this Stretch material is sometimes as the ticking in the mattress cover.When near the position the floor enters machine, be difficult to change material usually and the material that will newly supply with joins on the braided fabric that enters machine.Correspondingly, need the supply of this material be improved.
Summary of the invention
Main purpose of the present invention is to improve the validity and the economy of quilting, validity and economy during particularly the high speed in bedding industry for example, extensive quilting are used.Specific purposes of the present invention comprise: compare with quiited products of the prior art, improve the flexibility of quilting speed, the size that reduces quilting equipment and cost and increase institute quilting flower type.
Also purpose of the present invention is to provide the flexibility of the layout of pin in the multi-needle quilter.Other purpose of the present invention is to reduce to be changed pin required downtime and operating personnel's time is set in the multi-needle quilter operation.
Specific purposes of the present invention are to provide the quilting head that is applicable to various multi-needle quilter structures, this quilting head can be used for the multiple quilting machines of various sizes, type and direction, and for example single needle or multi-needle quilter, the quilting machines with delegation or multirow pin, needle set quilting machines that various intervals are arranged and pin are with the quilting machines of vertical, level or other mode orientations.Another concrete purpose of the present invention is to provide the sewing head that can carry out different operations in identical quilting machines, for example sewing on different directions, the different colored type of sewing or sew with different speed.
Another object of the present invention is to improve the reliability of sewing element regulation in the quilting machines.The one-tenth ring that purpose more specifically of the present invention is to provide a kind of quilting machines operating personnel to realize fast and is definitely regulated.Also purpose of the present invention is to provide a kind of one-tenth ring that shows the chain stitching sewing head of quilting machines whether to be in reliable indication in the suitable adjusting.
Also purpose of the present invention provides the thread-cutting device that is used for multi-needle quilter.Purpose more specifically of the present invention is to be provided for having operation discriminably or the thread-cutting device of the multi-needle quilter of the sewing head that moves discriminably, replace or reshuffle.Another object of the present invention be to be provided in the quilting machines the more reliable line rate of tension in the multi-needle quilter particularly monitoring and/control.Purpose more specifically of the present invention is the keeping automatically and regulating of line rate of tension in this quilting machines.
According to principle of the present invention, a kind of multi-needle quilter is provided, wherein the same with multi-needle quilter of the prior art, pin reciprocating motion on the direction beyond the vertical direction.Quilting machines of the present invention provides a plurality of axis of movements different with the axis of movement of traditional multi-needle quilter.In the embodiment that goes out shown in the present, substrate supports is in vertical plane, and pin reciprocating motion in the horizontal direction.Though substrate supports in vertical plane and pin be preferred and have important advantage by location flatly, but other non-horizontal substrate orientation (promptly has tangible vertical component on the orientation of plane, be called approximate vertical herein) and non-perpendicular pin orientation (promptly on the pin orientation, have tangible horizontal component, be called approximate horizontal herein) also can coordinate mutually with a lot of features of the present invention, and some feature of the present invention can provide advantage under the directed situation of any substrate or pin.
According to some principle of the present invention, a kind of preferred quilting machines embodiment provides can be respectively or two or more bridges of control independently.Each bridge can be provided with the sewing needle of embarking on journey.These pins can be driven together, and perhaps each pin can be respectively or is driven independently or in the mode of various combinations.
According to embodiment shown in the present, be provided with seven axis of movements.These axis of movements comprise unidirectional X0 axis, and this X0 axis is provided for only supplying with material on a downstream direction.In other embodiment, be provided with two-way X-axis line motion.The rotation that this X-axis line moves through donor rollers advances the material of braided fabric form to take place by the quilting position.
In addition,, carry pin and be provided with two axis of movements, be respectively X1, Y1 axis and X2, Y2 axis with the bridge that can independently move that becomes ring quilting mechanism according to embodiment shown in the present.Y-axis line motion is laterally moved each bridge abreast abreast and with the bearing of trend and the direction of motion of braided fabric with braided fabric, the motion of X-axis line then makes bridge move abreast up and down and with the braided fabric and the direction of motion thereof.In the embodiment of the bidirectional-movement that optionally is provided with braided fabric, the unnecessary X-axis line motion that bridge is set.The X, the Y that realize bridge by the X that controls respectively and the Y drive unit of each bridge move.Preferably, the scope of the Y-axis line of bridge motion be on all directions of each side of center about 18 inches, 9 inches, and for no matter braided fabric or bridge move at directions X the scope that the X-axis line of bridge moves, and makes bridge with respect to 36 inches of the motions of braided fabric.
According to some principle of the present invention, quilting machines is provided with one or more quilting heads, and this quilting head can be operated pin on level or vertical direction.According to other aspects of the invention, be provided with independently sewing head, this sewing head can be operated independently or operate in combination with one or more this other sewing heads, its mode of operation can with same movement synchronously or independently sew identical or different colored type, can be on identical or different direction or with identical or different speed or stitching rate.
Preferred embodiment a kind of according to the quilting machines of some principle of the present invention, be provided with such sewing head, it can combined on the bridge on the static platform or movably, can be arranged to and one or more other sewing heads combining in the group respectively and independently on other platforms or bridge, to make up with other sewing heads or operation and controlled respectively independently.
In illustrated embodiment of the present invention, bridge is supported and is moved respectively and independently, and respectively a plurality of and independently can operate sewing head and be supported on each bridge.Each bridge can be controlled and move with respect to the flat transverse for the treatment of the quilted material place with longitudinally, respectively and independently.Bridge is installed on the common leg support member, and on every side separately, vertically extend, and bridge is by the collinearity bearing sliding system channeling conduct that combines with each leg support member by this path in the path for the treatment of quilted material for this leg support member.Each leg also carries a plurality of counterbalances, and a counterbalance is set on each bridge.Come vertical independently, each bridge of horizontal cross ground driving by different independently controllable servomotors.The motor of each bridge makes bridge produce moving of vertical and level.
In addition, according to some aspect of the present invention, each bridge has the drive unit that can independently control, so that sewing element, pin and become the ring reciprocating motion.This drive unit is the most frequently used is rotation input part with the form of turning cylinder, operates the reciprocal interlock of each element.Drive unit on each bridge is operated independently and is allowed sewing head or sewing head group to carry out independently sewing operation, one or more other sewing heads idle running when perhaps allowing one or more sewing heads to sew.Each sewing head has the element that the control to control device responds, preferably the data signal that is sent to all sewing heads on the common bus is responded, each controllable elements is provided with decoding circuit, and this decoding circuit selects to plan to send to the signal of each element from bus.
In illustrated embodiment of the present invention, can each sewing head (comprising that each syringe needle becomes the ring head with each) be connected on the common rotating driving device by the clutch that can independently control, thereby colored type flexibility is provided, and this clutch can be by quilting machines control device operation to open or to stop sewing head.In addition, this head element that can be configured to sew is right, and each syringe needle has corresponding similar modular and becomes the ring head.Every pair sewing head can be opened or stop individually, and possibility is optimal to be that they normally synchronously or are out of phase opened together in its cycle or stop.Alternatively, can only there be syringe needle to be provided with selectivity and drives connection, form the output that the ring head can be connected to the pin drive motors, with running continuously.This connection can be direct and permanent, perhaps can regulate, convertible or can carry out phasing about needle actuating device, such as by provide differential drive mechanism in becoming the ring transmission system.When adopting directly driving, can will become the ring head driving apparatus to be connected to input drive shaft by gear-box rather than clutch.In the time will becoming ring to be installed on the quilt machine, each becomes the ring head can further be provided with into aligning dish on the ring driving shaft, to allow respectively to become the ring head to become ring head or needle actuating device to carry out accurate phase place setting with respect to other.In addition, each becomes ring head capsule body can be provided with the two-dimensional adjustment device in the plane vertical with pin, aims at corresponding syringe needle so that make into the ring head when becoming the ring head to install.
In addition,, be provided with a plurality of presser feets, on the pin of each syringe needle a presser feet be set according to other principles of the present invention.This has reduced the total amount that needs the material of compression, has reduced needed power of operation quilting machines and power.Each pin and corresponding become ring to move respectively or to control, perhaps the mode with the combination that is less than all pins on the bridge and one-tenth ring moves or controls, and can optionally enable and stop using.Pin with become enabling and stop using and being equipped with or preferably realizing of ring, for example actuator of electrodynamic type, pneumatic type, magnetic-type or other types, motor or removable linkage by the computer control actuator.
Sewing element and pressure foot need total pressure still less little, thereby allow the construction lightweight of quilting machines, and allow to have in the articles for use factory in bed occupy-place littler than small machine.In addition, the colored type twisted phenomena that uses presser feet independently to avoid the presser feet setting because of the past to cause.By between the needle plate of the one-tenth ring side of fabric with the wideer spacing of rising presser feet setting of the pin side of fabric, can further strengthen these advantages.This spacing can increase to several inches.
According to other principles of the present invention, the pin that the chain stitching forms in the quilting machines can be driven to the motion that is different from traditional sine curve formula motion.In illustrated embodiment of the present invention, the chain stitching forms the pin of head or each pin of a plurality of chain stitching formation head is driven to, compare with traditional sine curve formula needle movement, in the major part in its cycle, remain on raised position, penetrable material in the smaller portions in its cycle.Equally, in this embodiment according to the present invention, pin is driven to that to make it move down the velocity ratio of the passing material translational speed when material withdraws from faster.In optional embodiment of the present invention, the motion of sine curve formula is set.
In a kind of embodiment of asymmetric, non-sinusoidal cuve formula needle movement, the descending degree of depth by material of pin is approximately identical with the degree of depth of sine curve formula motion, but move sooner, thereby compare with traditional sine curve formula motion, in the more fraction in its cycle, reach the minimum point of stroke.Yet, the speed that pin rises from its stroke minimum point than its downstream rate slowly many, its time below material is identical or shorter with the motion of conventional sinusoidal formula at least, has sufficient time to pick up the needlework ring to allow into ring.Thereby compared with prior art, pin has produced bigger material penetration power, and pin skewness and material twisted phenomena are still less, this mainly be because pin to extend through the time of material shorter.
A kind of embodiment according to the quilting machines of some principle of the present invention provides mechanical linkage, and wherein articulated lever or drive unit make needle movement depart from mutually with sine curve.Cam or cam follower structure also can provide the curve that departs from mutually with sine curve.Similarly linkage also can drive presser feet.
Machinery of the present invention and electric embodiment go for producing according to needle movement of the present invention.In one embodiment of the invention, the stitching of every pair of pin forms element (sewing element) (particularly pin) and is preferably the linear servo motor-driven by servomotor, and the motion of pin is controlled as and accurately meets preference curve.In a kind of preferred implementation of non-sinusoidal cuve formula motion, this curve makes needle tip a little upwards surpass the position, tradition 0 degree top in its cycle, and this needle tip is remained on the top of traditional curve, more descending quickly than conventional situation, arrive 180 of lowermost end position or needle actuating device up to needle tip and spend positions.Then pin along the conventional needle position or rise to with being lower than the conventional needle position slightly its 0 the degree position.
U.S. Patent application No.09/686 has illustrated to have the quilting machines that is applicable to the quilting head that is subjected to servo-drive system control of realizing this motion in 041, and this patent application is by with reference to being herein incorporated.Use this equipment, the quilting head servo-drive system is controlled to carry out sewing movement by the programming Control device.For the present invention, this control device is programmed, with the operation sewing head, move in the mode of explanation herein with driving needle.In optional embodiment, the syringe needle of quilting machines is provided with mechanical linkage, and this mechanical linkage is constructed to pin be applied the motion of non-sinusoidal cuve formula as indicated abovely.The mechanism that applies this motion can be formed with the linkage and the assembly of asymmetric counterweight, the distribution of weight of this linkage and assembly makes the asymmetric force that is produced by asymmetrical movement depart from, thereby farthest reduces the vibration factor that the irregular acceleration that produced by the non-harmony different with traditional harmonious sinusoidal equation, the motion of non-sinusoidal cuve formula causes.In some embodiments, itself is provided with shell structure sewing head, and when sewing head was installed on the bridge, this shell structure was used for bridge mechanical enhancer, reinforcement and reinforcing, farthest to reduce vibration.
In addition,, become the ring head that the rotational motion of input is converted into two kinds of independently motions according to principle of the present invention, and the cam follower that need not on cam, to slide.Thereby becoming the ring head be the mechanism of high speed, balance, has the parts of minimum number and need not to lubricate, thereby farthest reduced maintenance requirement.Similarly, syringe needle also is configured to need not to lubricate.
According to other principles of the present invention, be arranged to the ring adjustment structure, be used for regulating the one-tenth ring of chain stitching quilting machines and the relation of pin, be used in particular for multi-needle quilter.This adjustment structure comprises the one-tenth ring fixator of easy operating, and this one-tenth ring fixator has regulating element, become the tip of ring can be by this regulating element towards or away from pin move.In one embodiment, but the screw of single bidirectional modulation or other elements make into the ring tip moves in any direction.Preferably, also be provided with independent locking member.Be adjusted to ring, control device advances to stitching formation element and encircles adjusting position when picking up, and stitching formation element stops in this position and enters the safety locking pattern, regulates to be carried out to ring.Then, finish when regulating, control device makes stitching form the element counter-rotating, thereby does not form stitching on material.
According to other aspect of the present invention, pin-the one-tenths ring proximity transducer is connected with indicator is set, this indicator provides the signal with respect to the position of the pin of stitching formation element group about the one-tenth ring for the operating personnel that are adjusted to ring.Preferably, coloud coding lamp illumination is to indicate into the position of ring with respect to pin, wherein to have of being provided with when correct and indicate and one or more other indications when mistake is set.The indication of this mistake can comprise as ring from pin too closely or when too far away coloud coding lamp and as ring other indications too far away in the other direction.
In embodiment shown in the present, become the ring fixator to be provided with exercisable governor motion, operating personnel can use single adjustment movement just to be adjusted to the lateral attitude of ring with respect to pin in any direction by this governor motion.This mechanism comprises into the ring fixator, becomes the ring elements pivot to be installed in this one-tenth ring fixator, thereby laterally carries into the tip of ring with respect to the pin of stitching formation mechanism.Become the mode of the adjusting of ring tip location to be, by rotating single adjustment screw towards a direction or another direction to the right will become the ring tip or be moved to the left with respect to pin.Become ring to spring-biased in its fixator, and supporting the tip of adjustment screw, thereby when screw during towards a direction rotation, spring is yielded to the power of this screw, when screw rotated to another way, spring made into ring towards screw turns.Adjustment screw will become ring to remain on its position that regulates with spring, and the lock screw that is arranged on the fixator can be fastened, remain on its position that regulates will become ring.
According to other features of the present invention, sensor is set, sending the relevant signal that becomes the ring tip with respect to the position of pin, the form of this sensor can be for being detected as the circuit that contacts between ring and the pin.For example, indicator lamp can be set, when become ring to contact to tell the operating personnel that are carried out to the ring adjusting, thereby when regulating, can accurately consider contact formation/cut-off point with pin.This sensor can be monitored into the equipment of the position of ring and/or pin for some alternatively.
According to principle of the present invention, each pin position of multi-needle quilter is provided with independent thread-cutting device.This thread-cutting device is preferably located on each one-tenth ring head of spininess chain stitching quilting machines, and each this thread-cutting device can both be operated respectively.In preferred embodiment, each of multi-needle quilter becomes the ring head all to be provided with the thread-cutting device that has removable blade or set of blades, and this device cuts top line at least under the order of quilting machines control device.This device preferably also cuts bottom line, and during the cutting bottom line, this device preferably also maintains bottom line or becomes the ring line, forms up to restarting stitching, remains on usually on the reposition for the treatment of quilted fabric.Have discriminably at quilting machines and to drive or the sewing head of control discriminably or have under the situation of the sewing head that can install individually or remove, the one-tenth ring assembly of each this sewing head is provided with the thread-cutting device that can control respectively.
In order to reduce the possibility of stitching disappearance, can use initiatively or passive one-tenth ring line tail guider, with the one-tenth ring line tail below operation when beginning or the guiding needle plate.In some embodiments, be arranged to ring line deflecting wedge and guide into the ring line, thereby pin can not miss into the ring thread triangle.In addition, when especially after cutting into the ring line, beginning to form colored type, provide a kind of separate type to begin control method, as a kind of optional feature of avoiding stitching disappearance when beginning.Separate type begins a kind of utilization that feature is following feature, promptly allows needle actuating device to remove the feature that is connected and moves respectively with becoming the ring drive unit.Begin feature by this separate type, beginning hour hands and becoming ring to carry out origination action respectively, thereby making picking up of stitching to expect.This is by guaranteeing that becoming ring at first to pick up the top line ring realizes that this method can be provided with the possibility that separate type begins, and for example becomes the operation of ring line before pin is picked up the triangle of bottom line ring.This becomes the locational paired pin protector of ring drive unit to assist by each, and a pin protector is positioned at on the ring, and another pin protector is positioned at on the ring housing, and two all is adjustable.The crosspointer protector has limited pin perpendicular to the deflection that becomes the ring plane of movement, has increased the reliability that stitching forms.
Be provided with possibility the top line of cutting is scraped the material top, comprise that line is scraped part mechanism and bridge moves the cycle of scraping, be used for top line is cut after and before new flower-shaped element begins, the top line that cuts removed from material.In addition, top line is set turns back the cycle, be used for when the stitching of flower type curve forms beginning, the top line tail that cuts being placed on the dorsal part of material.The possibility of stitching disappearance when this cycle of turning back has also reduced beginning.The part that this scrapes and the cycle of turning back can be combined as tailor-tacking, line cutting, jump, tailor-tacking and begin the sequence between the flower type.
Also be provided with tailor-tacking stitching sequence bind, with the possibility that farthest reduces the pin skewness and further reduce the stitching disappearance, this method is particularly useful in beginning tailor-tacking sequence process.This sequence relates to: sewing one segment distance on flower type direction, beginning to spend normally along the sewing route before groove part threads, turns back to the home position along identical route then by for example about one inch.In this sequence, use long stitching, and form element in conjunction with supplying with stitching to relative material discontinuously.This is supplied with discontinuously and comprises: alternately the cycle is realized following steps, promptly under the situation of not supplying with material with respect to pin pin pass material, then under the situation that pin withdraws from from material in the cycle and the while material of broken needle move with respect to pin.Make material or pin stop not to be indispensable, but can be another person's that in pin or material moving faster, slows down glibly motion.This stitching sequence can be applied to any situation that flower oppositely forms stitching in the type, especially makes this stitching be formed in the colored type the previous stitching that forms and when covering stitching of this previous formation when reverse stitching forms.This is particularly useful in beginning tailor-tacking process, in the time of can being applied to maybe can shall not be applied to the tailor-tacking end.When sewing, preferably adopt supply continuously rather than interruption to supply with.For being formed into the transition that continuous supply stitching forms, when beginning to sew colored type under the online situation of pre-cut, use a series of interruption-continuous transition stitching from be interrupted supplying with stitching.
According to principle of the present invention, each line of quilting machines or other Sewing machiness is provided with wired rate of tension watch-dog.The line rate of tension control appliance of each this line is used for automatically changing it to be regulated, thereby its monitoring situation is responded and the rate of tension of regulating line.Preferably, each line to Sewing machines is provided with closed loop feedback control.The rate of tension of slotted line is operationally distinguished in each closed loop feedback control, and proofreaies and correct its rate of tension based on every line.
Axle driving system is set, allows respectively to move and the control bridge, and accurate and apace travelling bridge, and keep its direction not crooked.This structure is used to carry out novel bind, thereby can bridge be started respectively and stop, so that the alignment of flower type, and avoids the waste of material between the flower type.In addition, can be by the pin of different bridges at different time sewing tailor-tacking stitching.
The adaptability and the greater flexibility that the wideer ranges of pattern of production is provided in various degree of the motion of the different bridges that can control respectively and motion.Can produce unique quilting flower type, for example in this flower type, make up the different colored type of producing by different pins or different pins.For example, can move different bridges, with the different colored type of sewing simultaneously.
Feature of the present invention provides many new flower-shaped and colored groove parts technology of threading.Some or be that apparatus characteristic produces in accordance with the principles of the present invention to small part.And some or be that method and technology according to other principles of the present invention produces to small part.Below describe in detail and discuss with the operation of equipment in conjunction with the accompanying drawings, proposed concrete application.
The quilting machines that the inertia ratio of this mechanism is traditional is little.Quilting speed has improved 1/3, for example brings up to 2000 stitchings of per minute.
Sewing element and pressure foot need total pressure and power still less, thereby allow the construction lightweight of quilting machines, and allow to have in the articles for use factory in bed occupy-place littler than small machine.In addition, the colored type twisted phenomena that uses presser feet independently to avoid the presser feet setting because of the past to cause.
In addition, need not and will treat that quilted material moves by side to opposite side from one, and need not material is pressed in large-scale pressure foot below, this makes quilting machines can have simple material path, and this makes that the size of quilting machines can be littler, and more is applicable to automatic material processed.
According to other features of the present invention, setting can use pin to begin structure with the separate type that the single driving servo-drive system that becomes ring realizes.Along with pin with become ring all to drive by same motor, realize this point by phase adjustment mechanism is set.In addition, according to the present invention, the phase place that makes into ring with respect to the phase place of pin in advance, be moved into ring and pin then together and keep phase difference between the two simultaneously, then ring makes into ring and pin is got back in the same-phase by being withdrawn to, and for example, or slows down with respect to pin or stops and making pin catch up with into ring simultaneously to realize this point by making into ring, along with pin with become the ring homophase, continue this cycle from this point.
According to other features of the present invention, beginning is set or finishes tailor-tacking stitching equipment and method, wherein tailor-tacking stitching sequence can change, to adapt to different materials or product.This method and apparatus can be provided for the manual selection of tailor-tacking stitching sequence, be used for the manual appointment of product or material type, then quilting machines responds so that suitable tailor-tacking stitching sequence to be set to choosing content, be used for automatic detection or analytic product or material type to determine suitable tailor-tacking stitching sequence, perhaps provide arbitrarily or the selectable modes of all these features.Except tailor-tacking stitching sequence variation or as its replacement scheme, when the difference of product or material had been done response, other quilting machines operating parameters also can be different, and for example line is deviate from amount, material moves and other functions.For example, if run into material thicker than common material or that density is bigger, then slower, stronger or longer interruption tailor-tacking stitching sequence may be more suitable.
Description of drawings
Detailed description by following accompanying drawing to preferred implementation of the present invention can more be expressly understood these and other purposes of the present invention and advantage, wherein:
Fig. 1 is the perspective view that embodies the quilting machines of the principle of the invention;
Figure 1A is along the cross-sectional plan view of the quilting machines shown in Figure 1 of the 1A-1A line among Fig. 1, has specifically illustrated time bridge;
Figure 1B be explanation Figure 1A jackshaft syringe needle with become the right amplification plan view of a ring assembly;
Fig. 2 is the normal axomometric drawing of the syringe needle of explanation quilting machines from Fig. 1 that the pin side the is observed a kind of embodiment right with becoming a ring assembly;
Fig. 2 A is explanation pin and the normal axomometric drawing that becomes a ring right needle assembly from the Fig. 2 that becomes the observation of ring side;
Fig. 2 B omits;
Fig. 2 C be the optional pin of explanation with become ring right with the similar normal axomometric drawing of Fig. 2;
Fig. 3 is the normal axomometric drawing of biopsy cavity marker devices of the syringe needle clutch of needle assembly shown in key diagram 2 and the 2A;
Fig. 4 is the normal axomometric drawing of a kind of embodiment of an explanation one-tenth ring assembly shown in Figure 2;
Fig. 4 A and Fig. 4 B omit.
Fig. 4 C be one-tenth ring driven unit shown in Figure 4 a part at the vertical view that becomes on the ring direction of principal axis, wherein become ring to be in adjusting position;
Fig. 4 D is the one-tenth ring fixator and the decomposition diagram that becomes ring of the one-tenth ring driven unit shown in Fig. 4 C;
Fig. 4 E is into the cutaway view along the direction shown in Fig. 4 C center line 4E-4E of ring;
Fig. 4 F is a kind of view of embodiment that is used for the one-tenth ring position indicator of the one-tenth ring governor motion shown in Fig. 4 C to Fig. 4 E;
Fig. 4 G is the view of a kind of embodiment of pin guard assembly;
Fig. 5 is the perspective view of the use of explanation one of a plurality of thread-cutting devices, and this thread-cutting device is arranged on in corresponding a plurality of one-tenth ring heads of multi-needle quilter in accordance with the principles of the present invention each;
Fig. 5 A is the view in serial stitching end hour hands, one-tenth ring, needlework and the position separately that becomes the ring line of the relevant thread-cutting device of explanation;
Fig. 5 B and Fig. 5 C are the views of the layout of explanation line cutting operation;
Fig. 5 D is the view according to the line rate of tension measuring circuit of some aspect of the present invention;
Fig. 5 E to Fig. 5 J is that explanation comprises that according to some embodiment of the present invention the line tail scrapes and the view of the line processing feature in the cycle of turning back;
Fig. 5 K to Fig. 5 X is explanation forms the stitching formation element action of sequence according to the stitching of some an embodiment of the present invention view;
Fig. 5 Y is the view that one-tenth ring line deflection device according to the embodiment of the present invention is described;
Fig. 6 is a kind of schematic isometric view of embodiment of the kinematic system of explanation quilting machines shown in Figure 1;
Fig. 6 A is the cross sectional representation along the line 6A-6A among Fig. 6, has illustrated that the material braided fabric moves and the static kinematic system of bridge;
Fig. 6 B is and cross sectional representation like Fig. 6 category-A, has illustrated that bridge moves and the static kinematic system of material braided fabric;
Fig. 6 C is the enlarged perspective that describes the left part of quilting machines shown in Fig. 1 in detail;
Fig. 6 D is the cutaway view along Fig. 6 C center line 6D-6D;
Fig. 6 E is the amplification view of the part of Fig. 6 C;
Fig. 6 F is the cutaway view along Fig. 6 E center line 6F-6F;
Fig. 6 G omits;
Fig. 6 H is the normal axomometric drawing of the part of bridge, has illustrated that the stitching that has syringe needle shown in Fig. 2 C and the quilting machines shown in Figure 1 that becomes a ring assembly forms the optional embodiment of cell driving device;
Fig. 6 I is the enlarged perspective of the bridge shown in Fig. 6 H, and the needle assembly side of bridge has been described;
Fig. 6 J is the vertical view according to the bridge that has the different driving device of some embodiment of the present invention;
Fig. 6 K is the pin of explanation homophase and the cutaway view of the part of Fig. 6 J that becomes ring;
Fig. 6 L is and the similar cutaway view of Fig. 6 K, pin has been described and become ring to be in separate type to begin in the phase place beyond the phase place.
Fig. 6 M is the decomposition diagram that describes the differential driven unit of phase adjusting apparatus in detail;
Fig. 7 A is the view that explanation quilting standard is spent type continuously;
Fig. 7 B is the explanation quilting 360 degree views of flower type continuously;
Fig. 7 C is the view of the discontinuous colored type of explanation quilting;
Fig. 7 D is the view of the different connection flower type of explanation quilting;
Fig. 7 E is adjustable length 360 degree of the explanation quilting views of flower type continuously;
Fig. 7 F is the explanation view of the continuous mirror image flower of quilting type simultaneously;
Fig. 7 G is explanation the do not suit view of type of quilting simultaneously;
Fig. 8 illustrates the lining supply of the direct upstream that is installed in quilting machines shown in Figure 1 and the normal axomometric drawing of bond pad;
Fig. 8 A to 8L is that explanation is supplied with by lining shown in Figure 8 and bond pad is carried out the replacing of lining and the sequence of views of joint;
The view of Fig. 9 combined flower type that to be explanation be made of the various colored type according to one embodiment of the present invention quilting of tight spacing;
Fig. 9 A is the view of the combined flower type of quilting on the quilting machines that illustrates in the prior art;
Fig. 9 B to 9N is the view that explanation is used for the quilting processing step of quilting combined flower type shown in Figure 9;
Fig. 9 O omits;
Fig. 9 P to 9R is the view that explanation is used for the quilting technology of the type of flower shown in quilting Fig. 9 R.
The specific embodiment
Fig. 1 and Figure 1A have illustrated the multi-needle quilter 10 according to one embodiment of the present invention.The type of quilting machines 10 is the braided fabric 12 that is used for the multilayer material of quilting wider width, employed material during for example mattress cover is made in the articles for use industry in bed.The quilting machines 10 of being constructed can be provided with less occupy-place (footprint), thereby compare the floor area that takies still less with quilting machines of the prior art, perhaps alternatively, can with the identical floor space of quilting machines of the prior art in more structural is set.For example, the occupy-place that quilting machines 10 has is about as U.S. Patent No. 5,154, and in 130 1/3rd of the floor area of illustrated quilting machines, the illustrated quilting machines of this United States Patent (USP) is made by being engaged in industry assignee of the present invention for many years.
Quilting machines 10 is built on the framework 11, and this framework 11 has upstream or arrival end 13 and the downstream or the port of export 14.The braided fabric 12 that extends in the plane of inlet of approximate horizontal enters quilting machines 10 in the below of gantry platform (catwalk) 29, this gantry platform 29 is positioned at arrival end 13 places of the quilting machines 10 of framework 11 bottoms, wherein this braided fabric 12 passes in framework 11 bottoms or around single inlet dummy roll 15, perhaps passing between the inlet dummy roll in pairs, braided fabric 12 transfers upwards and extends through the center of framework 11 in the quilting plane 16 of approximate vertical in this process.Braided fabric 12 passes between the paired braided fabric driven roller 18 once more at the top of framework 11, and forwards the downstream in the pelvic outlet plane 17 of approximate horizontal.One of them or both can be connected with the drive motors or the brake of the rate of tension of the motion that can control the braided fabric 12 by quilting machines 10 and control braided fabric 12 (the particularly braided fabric 12 in the quilting plane 16) in the one-tenth pair roller of the top of framework and bottom.Alternatively, as mentioned below, one or more other group rollers can be set for one or more in these purposes.Quilting machines 10 is worked under the control of programmable control unit 19.
Be positioned at quilting machines 10 arrival end 13 be the material of rolling, this material has constituted the braided fabric 12 that enters the multilayer material of this entrance area 13 with the braided fabric form from gantry platform 29 belows, and this gantry platform 29 is provided for allowing the quilting machines operating personnel the place ahead of quilting machines 10 of passing by.The top layer of material 12 or surface layer 12a, perhaps in the mattress cover quilting by jacket layer, supply to this gantry platform below from the supply table 400 of the upstream that is positioned at gantry platform 29.The perspective view of supply table 400 as shown in Figure 8.Remaining material layer comprises that packed layer 12b and bottom 12c supply with from the feeding mechanism (not shown) of surface layer supply table 400 upstreams.Surface layer A is provided to quilting machines 10 from the supply volume 401 that is supported on the supply table 400, shown in the side view among Fig. 8 and Fig. 8 A.
Supply table 401 comprises framework 402, and this framework 402 can be arranged on upstream side with the gantry platform 29 of quilting machines 10 position that is relatively fixed.Supply roll support 403 is pivoted on the framework 402, and at two pairs of trough of belt mounting blocks of its far-end carrying, comprises down piece 404 and last piece 405.Piece 404,405 is configured to support the center that extends through supply volume 401 and supports the opposed end of the axostylus axostyle (for example axostylus axostyle 406) of this supply volume 401.When from supply volume 401 supply materials, volume 401 is supported on the piece 404, and shown in Fig. 8 A, and the surface layer 12a of material extends on gantry platform 29 lower horizontal ground from rolling up 401, and extends to quilting machines 10.
When needing to change material, new lining volume 410 is set, shown in Fig. 8 B on the gantry platform 29 as pre-supply zone.Volume 410 can have the axostylus axostyle 411 in the hole at the center that extends through volume 410.This bar 411 can be used as handle from the extension of rolling up 410 end, places a pair of attendant on the gantry platform 29 to use for rolling up 410.New volume 410 is set to replace volume 401 by it being rolled into from the position on the gantry platform 29 with the dish 412 of gantry platform 29 direct neighbors, shown in Fig. 8 C.By the end of axostylus axostyle 411 is promoted and will roll up 410 and move on the support 403 from this position from coiling 412, and this end is placed in the last piece 405 of support 403, shown in Fig. 8 D.
After new volume 410 was installed on the support 403, primer fluid cylinder pressure or pneumatic cylinder 415 were with by rising to support 403 above the framework 402 upwards pivoting on the framework 402 with support 403.This will roll up 403 positions of staying shown in Fig. 8 E, and lining 12a extends below gantry platform 29 from rolling up 401, and extend to quilting machines 10.At this moment, start other cylinder 416, so that jig arm 417 descends, this jig arm 417 is clamped material 12a on the clamping bar 418 that is against framework 402, shown in Fig. 8 F.At this moment, the horizontal line at material 12a 420 places along the position is downcut from rolling up 401, this can use cutter or scissors manually to finish, and only provides enough tailing to fall into the bonding station of engaging mechanism 425 with the trailing edge 421 that allows material 12a, shown in Fig. 8 G.
In case trailing edge 421 be in the engaging mechanism 425 and remain on jig arm 417 and clamping bar 418 between, and material 12a downcuts from rolling up 401, then roll up 401 and can be promoted by bar 406 and remove, and place in the dish 430 at framework 402 tops, shown in Fig. 8 H from following 404 of support 403.Then, newly roll up 410 and can move to down piece 404, and replace the volume 401 of previous lining 12a in this position, shown in Fig. 8 I from the last piece 405 of support 403.Then in engagement device 425, the leading edge 426 of volume 410 material is placed trailing edge 421 position adjacent with lining 12a, in this position, by the monolock chain stitching that adopts engagement device 425 to sew on horizontally-arranged the material of rolling up 410 and 401 is bonded together, to form continuous lining braided fabric 12a, shown in Fig. 8 J.Then can be by starting cylinder 416 with jig arm 417 its clamped position that upwards pivots out, stay from roll up 410 new materials that extend with from volume 401 and extend to the interior old material of quilting machines 10 and engage, shown in Fig. 8 K.Thereby, can start cylinder 415 and reduce carriage 403, will rolling up 410 previous positions that take reel 401 to, quilting machines 10 lining that is provided by new volume 410 can be provided and move this moment, shown in Fig. 8 L.
Although having discussed, above explanation when replacing another kind of material braided fabric with a kind of material braided fabric, is used for equipment that the material braided fabric is bonded together, but this equipment can be used for convenient and effectively that length is short material joins braided fabric to, so that one or some material cloths (panels of material) are offered quilting machines.This is highly beneficial when the material cloth that provides the client to print to quilting machines, for example as U.S. Patent No. 6,263, and 816 and No.6,435,117 is described, and these patents are in conjunction with being hereby incorporated by reference.
Use above-mentioned principle and feature can design optional embodiment.For example, can with material 12a from roll up 401 downcut before with material 12a guiding by engaging mechanism 425 and join on the leading edge from the material of volume 410.
On the framework 11 kinematic system is installed, this kinematic system is included in the vertical a plurality of bridges that move on the framework, comprise bridge 21 and last bridge 22 down, but included bridge can be more than two shown in the figure.Each bridge 21,22 has forepiece 23 and back part 24 (shown in Figure 1A), and this forepiece 23 and back part 24 flatly extend with 16 almost parallel ground, quilting plane and on the opposite side on quilting plane 16 separately.A plurality of needle assemblies 25 are installed on each forepiece 23, and each needle assembly 25 is configured to make pin reciprocating motion pin on the vertical equity path vertical with quilting plane 16.Between adjacent needle assembly 25, be provided with rib or stiffener 89, be used to strengthen the structure of bridge and keep out the sewing edge that applies by needle actuating device and the dynamic deformation that causes.Each needle assembly 25 can start and be subjected to the control of quilting machines control device 19 respectively.A plurality of one-tenth ring assembly 26 are installed on each back part 24 of each bridge 21,22, and each becomes a ring assembly 26 corresponding with each needle assembly 25.Each becomes a ring assembly 26 to be configured to make into ring or is hooked in plane internal vibration with quilting plane 16 approximate vertical, intersects with the longitudinal path with the pin of corresponding needle assembly 25.Become a ring assembly 26 also can start and be subjected to the control of quilting machines control device 19 respectively.Each needle assembly 25 correspondingly becomes a ring assembly 26 to constitute the sewing element to 90 with it, and wherein, the sewing element matches to form uniserial twin-lock chain stitching.In the embodiment shown in Fig. 1 and Figure 1A, have seven pairs of this sewing elements to 90, comprise that corresponding on the back part 24 of seven needle assemblies 25 on the forepiece 23 of each bridge 21,22 and each bridge 21,22 becomes a ring assembly 26.Figure 1B illustrates in greater detail the sewing element to 90.
The single-piece needle plate is not set.But be provided with six square inch the needle plate 38 parallel on the ring 26 with quilting plane 16 in respectively becoming of the one-tenth ring side on quilting plane 16.This needle plate 38 has with becoming ring 26 a single pin hole 81 that move.All needle plates 38 are positioned at identical plane substantially.
Similarly, common pressure foot is not set.But as mentioned below, each needle assembly 25 comprises in a plurality of independently presser feets 158 separately one.The presser feet that this part is set substitutes the single pressure foot that extends in the prior art in the whole zone of multirow pin array.Each forepiece 23 of each bridge 21,22 is provided with a plurality of presser feets, and each presser feet is used to push down single pin material on every side.Preferably, each needle assemblies 25 is provided with the local presser feet 158 of itself, and the area that this part presser feet 158 only has around enough pins is pushed down material 12, to use needle assemblies sewing thread trace separately.
The corresponding needlework axle of being installed from the framework 11 that traverses 16 upstreams, quilting plane or pin side 27 provides line for each needle assemblies 25 on the forepiece 23 of bridge 21,22.Similarly, from the downstream of traversing quilting plane 16 or become the corresponding one-tenth ring bobbin of being installed on the framework 11 of ring side 28 to provide line for the ring assembly 26 that respectively becomes on the back part 24 of bridge 21,22.
Shown in Fig. 1 to Figure 1B, the forepiece 23 that traverses each bridge 21,22 is provided with common pin driving shaft 32, to drive each needle assembly 25 independently.Each 32 drives servo-drive system 67 by the pin that control device 19 is responded on the pin side component 23 of each bridge 21,22 and drives.The back part 24 of each bridge 21,22 is provided with into ring band drive system 37, respectively becomes a ring assembly to drive.Each becomes ring band drive system 37 to drive by the one-tenth ring driving servo-drive system 69 that also control device 19 is responded on the one-tenth ring side component 24 of each bridge 21,22.Each needle assembly 25 can optionally be connected with the motion of pin driving shaft 32 or be connected with its releasing.Similarly, each becomes a ring assembly 26 optionally to be connected with the motion that becomes ring band drive system 37 or to be connected with its releasing.Each pin driving shaft 32 and the mechanical fastener that becomes ring band drive system 37 by 19 controls of controlled device or motor and synchronously be driven.
Referring to Fig. 2, each needle assembly 25 comprises clutch 100, and this clutch 100 optionally is delivered to needle actuating device 102 and presser feet drive unit 104 with power from pin driving shaft 32.Needle actuating device 102 has crank 106, and this crank 106 is by radial type needle actuating device 110 and needle lock 108 mechanical connections, and this radial type needle actuating device 110 comprises three connecting rods 114,116 and 120.Crank 106 has arm or the eccentric part 112 that is connected rotationally with an end of first connecting rod 114.One end of second connecting rod 116 is connected rotationally with the pin 117 that extends from base 118, and described base is supported on the forepiece of one of them bridge 21,22 conversely.One end of third connecting rod 120 is connected rotationally with the pin 123 that extends from the piece 122 that is fixed on the reciprocating shaft 124, and this reciprocating shaft 124 is the extension of needle lock 108.Each connecting rod 114,116 and 120 opposed end are rotatably connected to together by pivotal pin 121, and this pivotal pin 121 has constituted the abutment of radial type needle actuating device 110.
Referring to Fig. 2 A, presser feet drive unit 104 has the radial type presser feet drive unit 144 similar to radial type needle actuating device 110.Crank 140 is connected with presser feet fixator 142 by mechanical fastener 144, and this mechanical fastener 144 comprises three connecting rods 146,150 and 152.One end of the 4th connecting rod 146 is pivotally connected on the arm or eccentric part 148 of crank 140.One end of the 5th connecting rod 150 is pivotally connected to from the pin 151 of base 118 extensions, and an end of the 6th connecting rod 152 is pivotally connected to from the pin 155 of presser feet drive block 154 extensions.
The pivotal pin 153 at each connecting rod 146,150 and 152 the relative end abutment by constituting presser feet radial type drive unit 144 is rotatably connected to together.Presser feet drive block 154 is fixed on the presser feet reciprocating shaft 156, and this presser feet reciprocating shaft 156 is slidably mounted in the drive tab 125,126 conversely.Presser feet 158 is connected to the far-end of presser feet reciprocating shaft 156 rigidly.Drive block 154 has the bearing (not shown), and this bearing is set to sliding motion on linear guide rod 130.Thereby, by radial type presser feet drive unit 144 crank 140 is rotated, so that presser feet 158 is with respect to needle plate 38 reciprocating motions.
Pin driving crank 106 and presser feet crank 140 are installed in the opposite ends of the power shaft (not shown) that is supported by drive tab 160.Belt wheel 162 also is installed on the crank 106,140 and therewith rotates.Drive crank 106,140 with 164 in response to the rotation of output pulley 166 synchronously.Clutch 100 operationally optionally makes pin driving shaft 32 and output pulley 166 engagements or releasing engagement, thereby needle assembly 25 is started working or termination work.
Referring to Fig. 3, output pulley 166 is fixed on the output shaft 168, and this output shaft 168 is installed in rotation in the housing 170 of clutch 100 by bearing 172.Pin driving shaft 32 is installed in rotation in the output shaft 168 by bearing 174.Actuator 176 is fixed on the pin driving shaft 32 and by bearing 178 and is installed in rotation in the housing 170.Actuator 176 has radially first semicircular flanges or the projection 180 of extending, this flange or projection 180 with the direction of center line 184 almost parallels on extend, and provide the drive surfaces of aliging on a pair of diameter, one of them drive surfaces is designated 182.Longitudinal centre line 184 almost parallels of drive surfaces 182 and pin driving shaft 32.
Sliding part 186 has 182 first semicircular flanges or the projections 188 of extending along the direction substantially parallel with center line 184 towards collar flange.But flange 188 has the drive surfaces that aligns on a pair of diameter, but one of them drive surfaces is designated 190, can be arranged within the position relative with the drive surfaces 182 of flange 180 or outside.Sliding part 186 is by actuated piece 192 and with respect to output shaft 168 translations.Actuated piece 192 has annular piston 194, and this annular piston 194 is set to sliding motion in the annular chamber 196 of housing 100, thus the adjacent liquid chamber 198,200 of opposite ends of formation and piston 194.Annular seal ring 202 is used for providing the fluid sealing between the wall of piston 194 and liquid chamber 198,200.Sliding part 186 is installed with respect to piston 194 rotationally by bearing 204.
During operation, pin driving shaft 32 stops at required angle orientation, with pressure fluid for example forced air import in the liquid chamber 198.Piston 194 moves from left to right, as shown in Figure 3, thereby but makes the drive surfaces 190 of sliding part 186 relative with drive surfaces 182.Along with clutch 100 so meshes, pin driving shaft 32 and sliding part 186 and output shaft 168 be mechanical connection directly, and output pulley 166 moves along with the rotation of pin driving shaft 32 exactly.Pin driving shaft 32 rotation subsequently makes output shaft 168 rotate simultaneously.
Along with pin driving shaft 32 stops at required angle orientation once more, fluid under pressure discharges and acts on the liquid chamber 200 from liquid chamber 198.Piston 194 moves from right to left, as shown in Figure 3, thereby but drive surfaces 190 is shifted out and drive surfaces 182 position contacting, and make clutch 100 remove engagement.Thereby drive surfaces 182 turns over and can drive flange 188, and pin driving shaft 32 is independent of output shaft 168 and rotates.Yet,, when clutch 100 is removed engagement, need make output shaft 168 remain on fixing angle position at non-engagement state.Thereby sliding part 186 has the second semicircle ring-type lockable flange 206, and this flange 206 extends on the direction substantially parallel with center line 186 to the left, as shown in Figure 3.This lockable flange has the lockable surface 205 of aliging on the diameter.
As shown in Figure 4, become ring and locator drive unit 212 make into ring 216 with the plane of reciprocating pin 132 direct neighbors in reciprocally rotate around pivotal axis 232.Become ring and locator drive unit 212 also make locator 234 with the vertical substantially plane in the plane of the reciprocal rotation that becomes ring 216 and the path of pin 132 in closed loop path in mobile.
Become ring 216 to be fixed on in the ring fixator 214, this one-tenth ring fixator 214 is installed in from the flange 220 of the first one-tenth ring axle 218a extension.Become the outer end of ring axle 218a to be installed in by in the bearing 236 that becomes ring drive unit housing 238 to support.Become the inner of ring axle 218a to be connected with vibrator housing 240.Thereby, become ring 216 roughly radially to stretch out from the pivot center 232 that becomes ring axle 218.
Fig. 4 has shown the one-tenth ring driven unit 26 of multi-needle quilter 10 types, the location of pin level wherein.Become ring driven unit 26 can comprise selectivity connector 210, for example clutch 210, and this clutch 210 is connected to the input 209 of driven unit 226 on the transmission system, and this transmission system is synchronized with the drive unit of the pin driven unit that is used to match.Become ring driven unit 26 to comprise frame unit 219, driven unit 226 and 210 is installed on this frame unit 219 mutually alignedly.Frame unit 219 is installed on the rear portion 24 of each bridge 21,22, aligns with corresponding needle assembly 25 from forming a ring assembly 26.The output of clutch 210 is driven into ring driving mechanism 212, and this one-tenth ring driving mechanism 212 has output shaft 218, has flange 220 on the output shaft 218, and ring fixator 214 is installed on the flange 220.In the multi-needle quilter of other types, this one-tenth ring fixator 214 can become ring to center on common shaft vibration with other, this common axle is shaken by the common driven linkage on the legacy system that finally is connected to needle actuating device, as U.S. Patent No. 5,154,130 is described.The chain stitching forms the characteristic of mechanism and the number of pin is not the flesh and blood of notion of the present invention.
Generally speaking, make into ring 216 (on being installed in into ring fixator 214 time) 800 vibrations along the path on axle 218, the stitching formation that this path 800 will become ring 216 to enter and cooperate with pin 132 concerns, shown in Fig. 4 C.Pin and the stitching that becomes ring form relation and motion in U.S. Patent No. 5,154, have carried out more complete explanation in 130.In the stitching forming process, become the tip 801 of ring to enter in the ring 803 of the top line 222 that presents by pin 132.In order to pick up this ring 803, in adjusting, be held in the lateral attitude at the tip 801 of ring 216, it is passed near the pin 132 at once.The adjusting that becomes ring 216 is carried out when axle 218 stops at the position of one-tenth ring most advanced and sophisticated 801 and pin 132 lateral alignment in its vibration period, shown in Fig. 4 C.In this is regulated, become the tip 801 of ring 216 laterally to move, promptly move perpendicular to pin 132 and perpendicular to the path 800 that becomes ring 216.
Shown in Fig. 4 C and 4D, becoming a kind of of ring 216 is the physical member that is formed by stainless steel preferred embodiment, and has hook portion 804 and bottom 805.The far-end of hook portion 804 for becoming ring tip 801.The bottom 805 be a block, hook portion 804 top extension of 805 from the bottom.Bottom 805 has the mount pin 806 that extends from its bottom, becomes ring 216 to be pivoted in the hole 807 of fixator 214 by this mount pin 806.
Regulate by soket head cap screw 812, this soket head cap screw 812 is screwed in the fixator 214, thereby adjacent with the base portion 805 that becomes ring 214 and prop up at point 813 places that depart from pin 806.Compression spring 814 props up at point 815 places opposite with screw 812 against becoming ring body 805, thus the fastening tip 801 that makes into ring 216 of screw 812 move towards pin 132, move away from pin 132 and unclamp the tip 801 that screw 812 makes into ring 216.Lock screw 816 is set to be used for and will to become ring 216 to be locked at the adjusting position of fixator 214 and unclamp into ring 216 and regulate.Lock screw 816 will be sold 806 efficiently and will be clamped in the hole 807, prevent to rotate to keep this pin 806.
In practice, become the position of ring 214 preferably to be adjusted to make most advanced and sophisticated 801 or just in time contact with pin 132, perhaps with pin 132 a little separately.In order to reach this position, be provided with electrical indicator circuit 820, be schematically shown as Fig. 4 F.This circuit 820 comprises the one-tenth ring 216 that is installed on the fixator 214, and fixator 214 is installed on the flange 220 of axle 218, shown in Fig. 4 D by electrical insulator 821 conversely.Fixator 214 is electrically connected with LED or some other sight indicator 822, and LED or some other sight indicator 822 are then connected between fixator 214 and power supply or electric signal source 823, and power supply or electric signal source 823 are connected with ground potential on the framework 11.Pin 132 also is connected with ground potential.Thereby, when contacting with pin 132,, start indicator 822 by the closing of circuit of indicator 822 and power supply or signal source 833 as ring 216.
Operating personnel can retreat and before come in to be adjusted to ring 216 by adjustment screw 812, thereby find contacting/cut-off point between pin 132 and the one-tenth ring 216.Then, operating personnel can will become ring 216 locks in place by trip bolt 816 then as required with becoming ring to stay this position or return setting.
When being carried out to the ring adjusting, quilting machines 10 will stop, and pin is in 0 degree or top dead center position, so control device 19 makes the sewing element advance to ring picking position (Fig. 4 C) in the cycle, stop and quilting machines enters the safety locking pattern at this position sewing element, the staff will be carried out to ring and regulate in this pattern.After setting pin and becoming ring, by operating personnel's input, the control device 19 of quilting machines 10 will become ring and pin to move towards the direction beyond the direction that forms stitching.Its implementation is the servo-drive system 67 and 69 reversings of driving needle and the drive unit that becomes ring, so that pin driving shaft 32 and becomes ring drive unit 37 backward rotation, so that become ring and pin oppositely mobile in its cycle, 0 spends the position thereby make pin turn back to it.This prevents to form stitching, carry out owing to become ring to regulate to be preferably in usually between the colored type, thereby this needs.By preventing the formation of stitching, no matter whether need continue sewing along line or path, can be carried out to ring in optional position and regulate along the stitching line.In addition, be maintained maintenance, hereinafter the line states through pruning be illustrated in conjunction with Fig. 5 to Fig. 5 D through the one-tenth ring line of pruning and the state of top line through scraping.
The single needle Sewing machines has adopted various linear cutting equipments.Shown this equipment 850 among Fig. 5.It comprises reciprocating linear actuators 851, and this actuator can be pneumatic type.Two barb cuttings 852 are installed to slide on actuator 851, this cutting 852 is return towards actuator 851 linearities when starting.851 of actuators are installed on the slide block 858 (not shown among Fig. 5, shown in the embodiment of Fig. 2 C), this slide block 858 make actuator 851 and associated component towards or the pin hole that departs from the needle plate 38 move, move to when cutting equipment starts position occupied when returning to the resting position of not blocking into ring 216 when cutting equipment.Cutter 852 has needlework barb 854 and becomes ring line barb 853, and when actuator 851 started, each barb hooked corresponding top line and bottom line respectively.All have cutting edge on the barb 853 and 854, thus cutting line separately.Fixing sheath spare 855 is fixed on the actuator 851, and the surface of this sheath spare 855 is configured to cooperate with the cutter 852 that slides, to cut off line.Carry out this when operation, cutter 852 stops at retracted position, but this position allows needlework tail to unclamp to keep the bottom line tail to be clamped at cutter 852 and be fixed between the spring metal finger 856 of sheath spare 855 bottoms.This clamping can prevent into ring and go offline, and can be clamped near the off-position place, can be very short from forming ring line tail.Fig. 5 to Fig. 5 D has illustrated the assembly in a kind of quilting machines, and wherein pin is vertically located.Yet, in quilting machines 10, pin 132 is for flatly locating, and is vertical with vertical material plane 16, form that ring 216 is positioned in the transverse horizontal direction and plane 16 vibrates abreast, and become the tip 801 of ring 216 to point to the left side (from the forward observation of Fig. 1) of quilting machiness 10.
Fig. 5 A has shown the one-tenth ring driven unit 26 of multi-needle quilter 10 types, and pin is wherein flatly located.When constituting the chain stitching sewing end of discrete colored type of sewing or flower type element, pin 132 with become ring 216 to stop at position shown in Fig. 5 A usually, in this position, pin 132 is from being withdrawed from by the material of the pin side of quilted fabric 12.Form this point in cycle at stitching, needlework 222 with become ring line 224 to appear at by the one-tenth ring side of quilted material 12.Needlework 222 extend around the one-tenth ring hooks 804 that become ring 218 downwards from material 12, and turn back to fabric 12, form ring line 224 and extend through into ring hook 804 and pass into the tip 801 of ring 216 from line source 856, penetrate material 12 then.
One-tenth ring side at material 12, in a plurality of one-tenth rings 26 each becomes ring head place all to be equipped with a cutting equipment 850, each cutting equipment 850 has the actuator 851 that is equipped with pneumatic type control system 857, and this pneumatic type control system 857 is connected on the output of quilting machines control device 19 by suitable interface (not shown).850 of each linear cutting equipments are as the linear cutting equipment that is used for single needle Sewing machines of the prior art.
According to the present invention, the mode with explanation herein in multi-needle quilter adopts a plurality of equipment 850.Referring to Fig. 5 and Fig. 5 A, equipment 850 respectively becomes on the ring assembly 26 to position at spininess chain stitching quilting machines in the following manner, promptly when equipment 850 extends, the cutter 852 of equipment 850 is becoming between ring 216 and the material 12 to extend, and is connected under controlling at the computer of the control device 19 of quilting machines and works.When point that the line that is arranged in the cycle will cut off, shown in Fig. 5 A, control device 19 starts actuators 851, and this actuator 851 makes 852 rings that move through needlework 222, thereby 852 hooks needlework and become the ring line, shown in Fig. 5 B.852 withdrawals then, the needlework 222 that extend from material 12 with cutting with become ring line 224.The cut end of needlework 222 is all unclamped, and the cut end that forms ring line 224 extends to material.Yet the end of one-tenth ring line 224 that extends to into ring 216 is still clamped, shown in Fig. 5 C.This clamping maintains into ring line end, thereby forms ring when restarting to sew, thereby prevents the online stitching that number is difficult to expect that begins to lack before forming chain, and the disappearance of this stitching may cause the flower type flaw to occur.
In order further to guarantee to avoid disappearance stitching when beginning to sew, to become ring to orientate as, if become the end of ring line 224 to fail to be clamped, then the end of line 224 is positioned under the effect of gravity and is positioned at correct pin side, thereby will begin sewing thread trace series.By this mode, become ring constituting the tailor-tacking of being sewed and to begin to spend the possibility of picking up in the initial number pin of type higher.
Prune feature to reach the standard grade and be specially adapted to multi-needle quilter, this multi-needle quilter has the head of optionally operation or can install, removes or be reset at head on the sewing bridge individually and respectively.Each cutting equipment 850 is provided with an one-tenth ring assembly of each correspondence, and can become a ring assembly to remove, install and move with each.In addition, if head can optionally be operated, the separately controllable feature of each linear cutting equipment is set then.
Prune feature for supplementary cords, on needle assembly 25, be provided with the line tail and scrape part 890.Shown in Fig. 5 C is further, this is scraped part 890 and comprises that the line hook scrapes element 891, this scrapes element 891 and is pivoted on the pneumatic actuator 892 adjacent with pin 132 so that scrape element 891 after needlework 221 cut off around the horizontal axis rotation vertical with pin 132.During startup, actuator 892 makes the tip that scrapes the pin 132 of element 891 in presser feet bowl 158 inswept on every side, to move the afterbody of needlework 221 to the pin side of material 12 and the inboard of moving presser feet bowl 158 to from material 12.From this position, along with the beginning of sewing, top line will can not be clipped in presser feet below, thereby begin place first time when descending in the flower type when pin, and the line tail can easily fold to the back side of material 12 usually.
Fig. 5 D has illustrated line rate of tension control system 870, and it can be used for each line of Sewing machines similarly, and is specially adapted to each independent line of above-mentioned multi-needle quilter.Line (for example becoming ring line 224) extends from line source 856 usually, and by line tension equipment 871,871 pairs of lines of this line tension equipment apply frictional force, thereby will move downstream for example to the line tensioning that becomes ring 216 to move.This equipment 871 can be regulated, with the rate of tension of control line 224.System 870 comprises line rate of tension watch-dog 872, line 224 by this watch-dog 872 tension equipment 871 with become extension between the ring 216.Watch-dog 872 comprises a pair of fixing line guiding piece 873, line is promoted and lateral drift by sensor 874 between this is to guiding piece 873, this sensor 873 is positioned on the actuator arm 875 that is supported in cross force converter 876, and measure by the line 224 that is tensioned and act on cross force on the sensor 874, to produce line rate of tension measured value.Each line 222 and 224 all is provided with this line rate of tension control.
Line rate of tension signal is converted device 876 outputs, and passes to control device 19.Control device 19 determines that the rate of tension of lines 224 is pines or too tight suitably or too.Line tension equipment 871 is provided with motor or other actuators 877, regulates to carry out rate of tension.The signal of 877 pairs of control device 19 of actuator responds.When control device 19 always when the rate of tension measuring-signal of converter 876 determines that the rate of tension of line 224 need be regulated, controller 19 transmits control signal to actuator 877,877 pairs of these control signals of actuator respond, and make tension equipment 871 regulate the rate of tension of lines 224.
The line tail of alternative use shown in Fig. 5 C scraped part 890 or is used in top line cutting back and will cuts the back top line before sewing again in new position being pulled to other mechanisms freely, can carry out the machine control sequence and scrape the function that is reached with realization line tail.After Fig. 5 E has illustrated and carried out the tailor-tacking sequence when the sewing of flower type element finishes and line be cut before the state of top line 222.Top line 222 is shown as 401 extensions from the top line source, extends to by top line tension equipment 402 and extends to pin 132 in the pinprick again, and this top line tension equipment 402 is by actuator 403 operations of the output control of controlled device 19.Between tension equipment 402 and pin 132, top line 222 passes the mechanism 404 that comes off, and this mechanism 404 that comes off comprises the pusher 405 that the actuator 406 by the output control of also controlled device 19 drives.In Fig. 5 E, pusher 405 is shown as the solid line at its retracted position.When actuator 406 started, pusher 405 moved to its extended position 407 (dotting), top line is moved to the position that also is illustrated by the broken lines.By sending signal with in the short time that the rate of tension of top line is lax by control device 19 to the actuator 403 of top line tension equipment 402, the mechanism 404 that comes off in these time period interior lines intermittently beats, thereby realizes that top line comes off.The signal that is sent to the actuator 406 of the mechanism 404 that comes off from control device 19 makes line mechanism's 404 intermittences that come off beat, and this intermittence is beated and made pusher 405 inclined to one side top lines 222, thus the loose top line of the certain-length that comes off from top line source 401.Alternatively, can make pin 132 with respect to material 12 move the approximate number inch than short distance, pulling out the loose top line of certain-length and it is pulled through pin 132, between pin 132 and material 12, to increase the line tail of certain-length.This relatively moves can be by advancing braided fabric 12 or by bridge 21,22 being moved or realizing by both.
Make as described above after top line 222 comes off, line 222 and 224 is cut off, and become the ring line to be clamped in conjunction with Fig. 5 C as mentioned illustratedly.Yet in this embodiment, scraping mechanism 890 does not need to occur.But, can adopt to scrape motion.In this moment of this process, the top line tail extends through material 12 downwards from pin 132, extends to the material below and arrives position to be cut, and shown in Fig. 5 F, and diagonal is implemented line tensioning operation once more.Then, pin 132 advances to NEW BEGINNING position 410 with respect to material 12, that is to say, can travelling bridge or material or both, and with the top of tape, to sew again, shown in Fig. 5 G to material.
Then, no matter whether used before this and scraped part 890, all carried out top line and turn back the cycle, sewing head was operated by a stitching cycle in this cycle, the top line anal spine is crossed material 12 arrive material 12 belows, and become ring 216 to pick up, shown in Fig. 5 H in this position.Then, along with the rate of tension of top line 222 applies by starting tension equipment 402 in advance, online scraping makes line 312 carry out turning back to these 410 ground, starting position again away from starting position 410 with respect to material 12 to move pin 132 in the action, thrust material 12 at these starting position 410 lines, shown in Fig. 5 I.For this action, control device 19 choice direction by the colored type of considering to sew.This action is enough to need not the top line tail is pulled out once more the bottom of under the situation of material remaining top line tail being moved to material 12 or becoming the ring side.The length of this action can be in response to the difference with the difference of situation.
This path of motion can be taken pin out of about about two inches action or combination from position 410 for the combination of for example straight line, arc, triangle, straight line and arc or some other.The length of or the plan line tail that will cut designed according to quilting machines can be used different paths.Preferably this path is orientated as any slack that makes in the top line that pin 132 places produce and be positioned at colored type pathway side, avoid that line is hooked or influenced by pin 132 when sewing flower type.For quilting machines 10, this action is preferably by keeping material 12 fixing and bridge 21,22 moved in the path on the plane that is parallel to material 12 realize.At the end in the cycle of turning back, quilting machines is positioned at the position shown in Fig. 5 J.
The beginning of flower type needs sewing element, pin 132 and becomes ring 216 to cooperatively interact, thus needlework 222 with become ring line 224 alternately to pick up the ring that forms by other line, to begin to form the chain stitching.Form the cycle if carry out stitching in the centre of sewing process, that is to say, after chain has begun, pin 132 descending by material 12 to pick up ring 412, sometimes be meant and becoming ring 216, top line 222 and becoming between the ring line 224 to form triangle, the action of locator or spreader 234 helps this leg-of-mutton formation, shown in Fig. 5 K.(relevant more complete explanation sees also U.S. Patent No. 5,154, Fig. 5 F in 130.Fig. 5 A to Fig. 5 G of this patent has illustrated that in order normal chain stitching forms the cycle).Yet line is not arranged in the material 12, becomes ring line 224 to end at the below of needle plate 38 and the below of locator 234.Specifically, become ring line 224 to be sandwiched in (Fig. 5 J) between cutter 852 and the spring clip 856.Therefore, triangle 412 does not exist in its normal form, and it may not be predictable fully that this ring is hooked by pin 132.Thereby the possibility of first stitching disappearance increases.The more important thing is, have unacceptable possibility, promptly each ensuing stitching will be lost, till first stitching forms after uncertain stitching forms cycle times.This may produce flaw product or waste product, may need product is repaired or abandoned.
Have been found that by line is operated, made before pin is picked up the bottom line ring ring at first to pick up the top line ring, can improve the reliability that stitching forms when beginning to sew colored type largely.This can alter course and realize by making into ring line tail.More reliably, this can also realize by changing the timing (timing that is pin is with respect to the timing that becomes ring) each other of sewing element, thus the top line ring that the ring of at first being picked up is picked up for the one-tenth ring of being advanced.Conversely, this can realize in the following manner, and line is operated or the sewing element is carried out timing, makes that in pin first time pin is lost the bottom line ring when descending.Can cause a kind of mode that this phenomenon takes place to be, guarantee in the pin descending hour hands first time " mistake " side by bottom line.As ring line tail from the tip that becomes ring when the one-tenth ring side of pin is extended back, bottom line is positioned at " mistake " side of pin.
Before beginning sewing, and pin 132 moves to after the new position with respect to material 12, and pin 132 is positioned at material 12 tops, and top line 222 stretch from bobbin to line tail ground pass pin 132.In the normal stitching formation cycle, pin 132 will begin above material, shown in Fig. 5 L, and become ring 216 to advance as shown in figure.Become the afterbody of ring line 224 to be positioned at the below of needle plate 38 and the below of locator 234.Traditional initial in, along with pin 132 is descending, may but not necessarily can through bottom line 224 with become between the ring 216, pick up the bottom line ring, shown in Fig. 5 N, one-tenth ring 216 will be withdrawn, shown in Fig. 5 M.This makes into ring line 224 and enwind needlework 222 near the position that becomes ring 216 below locator 234, shown in Fig. 5 O, produce the triangle of distortion, and this has increased pin 132 will miss ring when descending next time possibility.
Each sewing head (comprising that each syringe needle becomes the ring head with each) can be connected to by the clutch that can independently control on the common device of rotation driving, this clutch can be operated by the control device of quilting machines, opening or closing each head, thereby provide colored type flexibility.This head element that can be configured to sew is right, and each syringe needle is a modular, and becomes the ring head corresponding to similar modular.Though every pair head can open or close individually, they synchronously or in the out of phase in its cycle open and close usually together, and this may be optimal.Alternatively, only syringe needle is provided with selectivity and drives connection, forms the output that the ring head can be connected to the pin drive motors, thus operation continuously, and this is owing to become the ring head can not pass material and can not form stitching when pin does not move.It can be direct and nonvolatil becoming ring to connect, and perhaps can be adjustable joint, changeable or can carry out phasing with respect to needle actuating device.For example, become the ring drive unit to be connected with needle actuating device by in becoming the ring transmission system, differential driving mechanism being set.When adopting direct drive unit, become the ring head driving apparatus to be connected to input drive shaft by gear-box rather than clutch.Each becomes ring head becoming on the ring driving shaft align disk is set, so that can become the ring head to become ring heads or needle actuating device accurately to carry out phase settings with respect to other to each when being installed in the quilting machines as ring.In addition, each becomes ring head capsule body that the two-dimensional adjustment device can be set in the plane vertical with pin, aligns with syringe needle accordingly so that make into the ring head when installing as the ring head.
In order to reduce the possibility of stitching disappearance, particularly after cutting into the ring line, begin to form in the colored type, provide a kind of separate type to begin control method, to avoid stitching disappearance when beginning.The separate type start method is a kind of application of following structure, promptly allows needle actuating device and become the ring drive unit to remove individually to be connected and to move.Begin structure by this separate type, beginning hour hands and becoming ring to carry out origination action respectively, thereby making picking up of stitching to expect.This is by guaranteeing that becoming ring at first to pick up the top line ring realizes before pin is picked up the triangle of bottom line ring.
By this separate type start method, along with this mechanism stops, thereby pin is arranged near the top dead centre in its cycle and pin with become the locked and homophase of ring, then these elements are unlocked, can be independent of pin and move from forming ring, for example advance in its cycle, 180 degree for example advance.Then, can make pin with respect to the position that becomes ring 180 degree that advance so that pin with become the ring homophase, guarantee that beginning hour hands in start cycle can lack into one-tenth ring wire triangle ring in the ring line.Then, can make these elements be locked in homophase again.Along with being advanced further of element, become ring before one-tenth ring ring is picked up by pin, to pick up the needlework ring thereupon, the stitching sequence is produced foreseeable beginning.
According to one embodiment of the present invention, when being positioned at starting position shown in the similar Fig. 5 P of Fig. 5 L, needle actuating device with become the ring drive unit to remove to be connected, pin is maintained at its top dead center position.Become the ring drive unit half period of then advancing, move to position shown in Fig. 5 Q will become ring 216, thereby will become ring 216 to be recovered to outside the path of pin 132.Then, become the ring drive unit to be maintained at the position of its half period, needle actuating device then starts, and pin 132 is dropped to the position of its half period, this makes pin 132 away from bottom line 224, shown in Fig. 5 R.Then, needle actuating device with become the ring drive unit to link together once more, and synchronously advance together, near the position in 3/4ths stitchings formation cycles, begin to pick up the needlework ring from forming ring 216, shown in Fig. 5 S, and proceed to the complete cycle position from this position, shown in Fig. 5 T.Then, these elements continue to move through the next cycle, can see the formation of stitching in this cycle, shown in Fig. 5 U to Fig. 5 X.Big about the position shown in Fig. 5 X, become ring line tail himself to be pulled out from the clamping action of line clipping device.
As indicated above, the disappearance of needle actuating device stitching when becoming the ring drive unit to avoid beginning separating when the beginning.The line drive unit cycle has other purposes with one-tenth separating of ring drive unit cycle, for example is convenient to the pruning of line.
As to using the alternative scheme of separate type start method mentioned above, the possibility of stitching disappearance in the time of can reducing beginning in the following manner, promptly to the line tail channeling conduct that becomes the ring line or make its changed course, thus prevent the top line ring become ring pick up before the bottom line ring picked up by pin.The implementation of this changed course can for, make 850 displacements of line clipping device and clamping device or carry out other location (Fig. 5 J), so that become the line tail of ring line 224 to open from the pin sidesway that becomes ring 216.Use line pusher mechanism or other one-tenth ring line changed course technology can be so that become ring to pick up the top line ring before pin is picked up the bottom line ring.
The additional phenomenon that the possibility of when beginning stitching disappearance is increased is, up to becoming ring line 224 when pulled towards needle plate 34 and material 12, spreader or locator 234 could with becomes ring line 224 formation triangles.The one-tenth ring line of being clamped by line clipping device 850 224 is retained as and can't reaches locator 234.Before sewing beginning, become ring line tail may become generation between the clamped position of ring 216 and line clipping device 850 suitable become ring LSOR phenomenon.This relaxation may form bigger ring, this encircles from the pin side oscillation to opposite one-tenth ring side, reduce the possibility that stitching is picked up in any period demand, even also be so after pin is for the first time descending, thereby can't postpone the beginning of stitching chain with expecting.This delay may cause existing unacceptable long gap in the colored type of being sewed, need repair or abandon this plate braided fabric.The possibility of this problem of generation that is caused by this one-tenth ring LSOR phenomenon can reduce by being constrained to the ring line.This restriction can realize by be arranged to ring line deflecting wedge 430 below needle plate 38, shown in Fig. 5 Y.Can place structure such as line deflecting wedge 430 for example and control the direction that the line tail that becomes ring line 224 when initial leaves into ring 216, and influencing into ring line tail and the interval that becomes ring, its influence mode makes that pin 132 can not lack into the ring wire loop after the one-tenth ring has been picked up the needlework ring.No matter whether adopt separate type to begin technology, for example become structure such as ring line deflecting wedge 430 can both improve the reliability that stitching forms.In some cases, the reliability of this improvement is enough to omit separate type and begins structure.
One-tenth ring line deflecting wedge 430 shown in Fig. 5 Y is a wedge shape, and is fixed on the bottom of needle plate 38.The wedge shape of deflecting wedge 430 has conical surface 431, and when advancing near its zero degree forward facing position or pin and make progress the position as ring, shown in Fig. 5 P, this conical surface 431 is positioned at near the path at ring 216 tips.In this position,, become ring line tail to be sandwiched on the line clipping device 850 of opposition side in pin path with the beginning of the type of blossoming.The surface 431 of deflecting wedge 430 positions with respect to the path that becomes ring, to guide into ring line tail, make it enough depart from needle plate, thereby in case become ring to pick up the needlework ring, becoming ring line 224 that very big possibility is arranged is the pin side that is positioned at into ring 216, thereby descending pin 132 is picked up into the ring wire loop when it is descending next time.Become ring line deflecting wedge 430 to help when above-mentioned separate type start method does not use or be invalid, to reduce the phenomenon of stitching disappearance when beginning.
Fig. 5 Y has also illustrated the traditional pin protector 460 on the base portion 805 that is installed in into ring 216, preferably referring to Fig. 4 D.Can become to pivot on the ring 216 by making the pin protector so that the pin protector is regulated, wherein can be by the screw (not shown) is set in the hole shown in Fig. 4 D 416 with this pin protector locks in place.This pin protector 460 makes descending pin 132 remain on into the left side of ring, and can not deflect into the right side of the one-tenth ring 216 of advancing, and shown in Fig. 5 R and Fig. 5 S, can pick up ring from forming ring 216, can not leak stitching.
A kind of improved optional embodiment has been described among Fig. 4 G, wherein has been provided with a kind of crosspointer guard assembly 470.This assembly 470 comprises the first pin protector 471 and the second pin protector 472.The first pin protector 471 is carried out the function similar to pin protector 460, but and be pivotal adjustment be installed in on the base portion 805 of ring 216.The second pin protector 472 is the bar of circular cross section, and is installed in the hole of mounting blocks 473 with turning adjusting, and this mounting blocks 473 is rigidly fixed to the one-tenth ring side of needle plate 38.In the embodiment shown in Fig. 4 G, line deflecting wedge 430 also is installed on the mounting blocks 473.Pin protector 472 keeps descending pin 132 can further not deflect into the left side of the one-tenth ring 216 of advancing, can also therefore not leak this stitching so that lack the top line ring from forming ring 216 by the right side of needlework 222, but by between needlework 222 and the pin 132 (Fig. 5 S).The circular cross section of the second pin protector 472 is the center with the plane of movement that is parallel to into ring and the axis 474 on needle plate plane, promptly is positioned at the horizontal cross position of described quilting machines.Pin protector 472 has eccentric base 475, and the axis 476 of this eccentric base 475 and axis 474 and are installed in the hole of mounting blocks 473 separately and parallel.Like this, pin protector 472 is regulated in the installing hole of mounting blocks 473 rotationally, thereby make can with pin protector 472 and axis 474 thereof towards or move away from pin 132, wherein can be by tightening soket head cap screw 477 with pin protector 472 locks in place at mounting blocks 473.
Also the technology of the tailor-tacking sequence that is used to sew is improved, to reduce the possibility of stitching disappearance, the possibility of stitching disappearance when particularly being reduced in initial tailor-tacking sequence.Preferably, the beginning mode of initial tailor-tacking sequence is, earlier on the direction that will form colored type sewing about one inch than short distance, before the stitching that continues to sew forward with delegation, sewing back covers initial stitching and turns back to original position then.During beginning, several pins of sewing are than long stitching, the stitching of the normal length of sewing then earlier.Common normal stitching speed can be seven stitchings of per inch.Begin the tailor-tacking sequence, at first line is arranged on the original position of colored type curve, this can be by using above-mentioned scrape and the cycle of turning back realizes.Can stitch the stitching of two triple-lengths then, then along the stitching of flower type curve normal length of seam on away from the direction of original position.Can back stitch the stitching of seven normal lengths then to get back to original position.Can reverse sewing direction once more then, cover initial stitching along the sewing of flower type curve.
In normal flower groove part was threaded, the supply of bridge or material or its combination preferably caused stitching to form the continuous supply action of element with respect to material.Yet in the tailor-tacking sequence, particularly in the stitch length tailor-tacking sequence part longer than normal stitching, its supply that causes is interrupted.Yet, this interrupted supply is preferably and is not non-coherent, but can transition swimmingly between following two kinds of situations, promptly stitching forms the situation of the quick relative motion between element and the material when pin is not handled material or handled less material relatively, and when pin is busy with handling material stitching form between element and the material relative seldom or do not have a situation of this motion.In the sewing of normal length stitching, no matter be that this supply all is preferably continuously and smoothly before or after the long stitching of sewing.
High speed sewing in the flower type quilting sine curve formula by pin and continuous stitching usually forms and carries out, and this sine curve formula is the function of time or is the function that stitching forms distance at least.In above-mentioned so-called interrupted supply, can think that the motion of pin is the non-sinusoidal cuve formula as the function of distance, the reciprocating motion of pin is faster than sine curve formula when the needle penetration material, and is then slow than sine curve formula when material withdraws from pin.The transition of pin speed can be smoothly.Whether no matter reverse in the flower groove part is threaded process, the pin speed of the type changes all of great use.Relating under the situation that begins to sew that moves with respect to material from halted state by pin, this pin actuation movement is more favourable.Tailor-tacking is the common example of both of these case, needs this pin speed to change in this case.
For example, pin speed can be from stopping, with the operation of consecutive periods speed and its motion is the sine curve formula of the function of time, but when pin when material withdraws from, material and pin supply rate each other is faster, then slower when the needle penetration material, the needle movement that is shown is the non-sinusoidal cuve formula about the distance that moves with respect to material.By this motion, the big stitching of the average stitching of several ratios of can sewing will be supplied with at the material between the needle penetration material and reduce to normal stitching spacing gradually, and can proceed continuous stitching forming process this moment.Then, when carrying out tailor-tacking,,, carry out the transition to the stitching of normal size subsequently by the long stitching sequence of the normal stitching of the several similar ratios of non-sinusoidal cuve formula action sewing of pin with the direction reversing of pin with respect to material.So long as occur can adopting identical scheme when direction is reversed, and be not limited only to when the flower type begins and finishes, adopt.This has reduced the phenomenon of lopsided stitching, disappearance stitching and thread breakage.Pin can be realized in the following manner with respect to moving of material: move with respect to the framework of quilting machines by making bridge (1), keeps material static simultaneously; (2) static by the maintenance bridge with respect to quilting machines, and material moves; Perhaps (3) are by combining bridge and the two relatively moving of framework with respect to quilting machines of material.
Moving of above indication can realize in the following manner, promptly considers the inertia of quilting machines parts and material and other influences of material deformation and acceleration, deceleration, pin deflection and other factors etc., minimizes to be optimized or to make these influences.For example, in the normal sewing of flower type main body, along with relatively moving between material and the pin, pin can the reciprocating motion of sinusoid ground by a series of sewing cycle, this motion is for to be parallel to the motion of material plane, and be continuous, or Chang Su.For this example, the reciprocating motion speed of pin can be 1400 cycles of per minute, and pin is 200 inches of per minutes with respect to the translational speed of material.Then, in the time of sewing the tailor-tacking sequence, this of pin be parallel to be moved and reciprocating speed can drop to pro rata and for example is respectively 100 inches of per minutes and 700 cycles of per minute.Then; for the tailor-tacking stitching; the reciprocating motion speed of pin can change and non-sine move; for example, can grasp, when being in the cycle portions of needle penetration material by control device; speed with 2100 cycles of each second moves; then between material penetrates with sewing normal length stitching or sewing length during than the long stitching of normal stitching, translational speed drops to hundreds of cycles or slower of each second, makes that the phenomenon of the phenomenon of pin deflection and material deformation is minimized.Thereby, when penetrable material, make the reciprocating motion of pin accelerate to bigger period velocity, between penetrating, stitching then decelerates to slower period velocity.The transition stitching of can sewing before or after the tailor-tacking stitching is to carry out the transition to normal stitching or to come out from normal stitching transition.This sequence can be used for the sewing of tailor-tacking stitching, perhaps needs to use when reverse in sewing flower type process.
The relative left part of last bridge 22 and right part are supported on respectively on the right platform 41 and left platform 41 of lifter 34, and down on the relative left part of bridge 21 and the right platform 41 and left platform 41 that the right part is supported on down lifter 33 respectively.All elevator platform 41 can both mechanically independently move, and the relative platform of each lifter 33,34 as one man moves up or down under the control of control device 19.In addition, each lifter 33,34 under by the control of control device 19 on the opposite side of each bridge 21,22 mobile platform 41 synchronously, contour with laterally (promptly a side arrives opposite side) that keep bridge 21,22.
Linear servo motor stator 39 is installed on each side of framework 11, and with the vertical abreast extension of vertical guide rail 40.The armature of linear servo motor 35,36 is separately fixed at down on each platform 41 of lifter 33 and last lifter 34.The following servo-drive system 35 of control device 19 controls moves up and down bridge 21 on stator 39, keep the opposed end of bridge 21 contour simultaneously, and servo-drive system 36 moves up and down bridge 22 in the control on same stator 39, keeps the opposed end of bridge 22 contour simultaneously.Vertical movement mechanism 30 comprises digital encoder or solver 50, each lifter respectively carries a digital encoder or solver 50, accurately to measure its position of platform 41 on guide rail 40, to give control device 19, to assist the accurate location that bridge 21,22 is carried out and to heighten with feedback information.Although linear electric machine for example linear servo system is preferred, can adopt optional drive unit, for example ball-screw and rotating servo system or other driving arrangements.Encoder 50 is preferably the absolute encoder of output actual position signal.
Kinematic system 20 comprises the transverse horizontal motion 85 that is used for each bridge 21,22.Each bridge 21,22 has the paired tongue piece 49 that extends rigidly from the opposed end in its right side and left side, and this tongue piece 49 is supported on bridge 21,22 on the platform 41 of lifter 33,34.This tongue piece 49 laterally moves on elevator platform 41 under the operation of transverse horizontal bridge motion 85.Tongue piece 49 on each bridge 21,22 laterally transmits the guide frame 44 that extends, and this guide frame 44 is the form of guide rail, on the supporting member 43 of the platform 43 of each lifter 33,34 (Fig. 6 A).Linear servo system stator bar 60 is fixed on the tongue piece 49 of a side of each bridge 21,22, and extends abreast with guide rail or guide frame 44.The armature of linear servo system 45,46 is fixed on one of them platform 41 of each bridge 21,22, and orientates as in response to the signal of control device 19 and to cooperate with stator bar 60 and stator bar 60 is laterally moved.The transverse horizontal motion comprises the decoder 63 that is used for each bridge 21,22, this decoder 63 be arranged on each lifter 41 on the armature position adjacent of servo-drive system 45,46, horizontal bridge location is put feedback information, put to help accurately to control horizontal bridge location to control device 19.Bridge 21,22 can independently control sagging translation on the ground moving and about laterally move, and with the coordinated mode operation, on material 12, to make quilting flower type.In embodiment as shown in the figure, each bridge can laterally move 18 inches (begin from its center+/-9 inches), and each bridge can move up and down 36 inches (begin from its center+/-18 inches).The vertical range of following bridge 21 and last bridge 22 can be overlapping.
Be positioned at the top of framework 11 and also drive by being positioned at right side framework 11 tops and that be positioned at framework 11 (for the downstream) feed servomotor 64, as shown in Figure 6 as the driven roller 18 of the parts of whole kinematic system 20.When starting, servomotor 64 driven rollers 18 supply to the downstream with the braided fabric with material 12, with the upwards pulling and by between the two the parts 23 and 24 of quilting position and bridge 21,22 along plane 12 of this braided fabric.What roller 18 also drove the framework that is arranged in quilting machines 10 left sides is with 65 synchronously, as shown in Figure 6A.Each bridge 21,22 can be provided with paired taut band roller 66 and come instead of null transfer roller 15, and these taut band rollers 66 are as the axle journal on each elevator landing 41, and each bridge 21,22 is supported on this platform 41.These rollers 66 are picked up material 12 on the height and position of bridge 21,22, so that the transverse shift of material on the height and position of sewing head 25,26 minimized.Taut band roller 66 is by being with 65 to carry out synchronously, thereby move with material 12 at the tangential motion of interlock place of paired taut band roller 66 on their surface.
Also having found to omit taut band roller 66 and only use dummy roll 15 also is acceptable possibility.This possibility may be gratifying, has occurred the pleat phenomenon to avoid material in some material He in the bridge motion process.
As shown in Figure 6A, by elevator platform 41 supporting bridge 21,22 regularly, the startup driven roller 18 of motor 64 is so that braided fabric 12 advances between the taut band roller 66 of bridge 21,22 downstream and upwards.Roller 18 makes band drive cogwheel 600 conversely and rotates these cogwheel 600 rotating bands 65 in the left side of framework 11.Taut band roller 66 on two bridges 21,22 is by driving with 65 motion, thereby when bridge 21,22 vertically fixedly the time, their tangential velocity is identical, and when moving up because of the motion of roller 18 along with material 12, this taut band roller 66 is along with material rolls.On the other hand, when feed roller 18 and material 12 are static, be with 65 to keep static, shown in Fig. 6 B.Be with 65 when static, moving up or down of each bridge 21,22 makes roller 66 move with respect to braided fabric 12, also with respect to being with 65 to move.Roller 66 rotates with certain speed with respect to the mobile roller 66 that makes with 65, and is static on braided fabric 12 with the roller surface that keeps interlock place between the roller 66, thereby roller 66 rolls along the surface of material 12 static braided fabrics.In addition, the combination of the motion of the motion of braided fabric 12 and bridge 21,22 is accompanied by the aggregate motion that imposes on roller 66, this aggregate motion has deducted moving upward of bridge 21,22 efficiently from the moving upward of braided fabric 12, thereby moves with material 12 all the time on the surface of the roller 66 of interlock place of 66 groups on roller.Between the taut band roller 66 of braided fabric 12 and each bridge 21,22 this is synchronized with the movement and kept vertical rate of tension of material 12, and material 12 is clipped in each bridge 21,22 place, prevents the horizontal material deformation of braided fabric 12.
As indicated above, making can be with the structure of the synchronized movement of the motion of taut band roller 66 and bridge 21,22 and braided fabric 12 shown in Fig. 6 C and Fig. 6 D and Fig. 6 A and Fig. 6 B with 65.Be with 65 to extend around inserted tooth driven roller 600, this inserted tooth driven roller 600 drives (Fig. 6 D) by feed roller 18 by gear assembly 601.Also extend with 65 around four rotation idler pulley 602 to 605 that are installed in rotation on the static framework 11.Be with 65 also to extend around driven pulley 606 and rotation idler pulley 607, and around rotation idler pulley 608 and driven pulley 609 extensions, driven pulley 606 and rotation idler pulley 607 all are installed in rotation on down on the elevator platform 41 of bridge 21, rotation idler pulley 608 and driven pulley 609 all are installed in rotation on the elevator platform 41 of bridge 22, and all belt wheels all are positioned at the left side of framework 11.Driven pulley 606 is driven by the motion with 65, and drives the taut band roller 66 of bridge 21 down by gear mechanism 610 (Fig. 6 D) conversely, and driven pulley 609 is also driven by the motion with 65, and drives the taut band roller 66 of going up bridge 22 by gear mechanism 611.Gear mechanism 610 is relevant with the drive ratio of driving gear mechanism 601 with 611 drive ratio, makes that roller 66 and roller 18 are zero with respect to the tangent line speed of braided fabric 12.It should be noted that regardless of the position of bridge 21 and 22, it is identical that the path with 65 keeps.
In addition, inlet roller 15 is right with roller 18 similar rollers, shown in the bottom and Fig. 6 E and Fig. 6 F of Fig. 6 D.This roller 15 is not essential, depends on braided fabric 12 feeding systems of quilting machines 10 upstreams, if this roller 15 so is provided with and is driven, then also by being with 65 to drive, as driving by the gear mechanism 612 that is driven by roller 605, roller 605 is then by being with 65 to drive for this roller 15.In this case, should be the tangential velocity maintenance of roller 15 is identical with feed roller 18 by the suitable and gear ratio that be complementary between the mechanism 601 and 612.Yet, may preferably allow roller 15 freely to rotate as the dummy roll, and only the upstream side of material 12 and above single roller 15 is set, material 12 will be around these roller 15 extensions.In the gear mechanism 601,610 and 611 each can be basically as described and the gear mechanism 612 that illustrates.
The vertical motion of bridge 21,22 is coordinated mutually with the downstream motion of the braided fabric of material 12.The coordination mode of this motion makes bridge 21,22 can remain on efficiently in 36 inches vertical range of their strokes.In addition, two bridges 21,22 can move the different piece with sew different colored types or flower type.Like this, their motions separately also can be coordinated, thereby two bridges 21,22 all remain in its stroke range separately, and this may need them to be operated in different sewing velocities.This can then depend on or be driven in this bridge by the motion of being controlled another bridge of bridge by control device 19 independently realizes, yet other motion combinations may be more suitable in various type and the situations of not suiting.
Realize forming the flower type with respect to the vertical vertical motion of material 12 and the combination of transverse movement by the sewing head 25,26 that bridge 21,22 is positioned on the bridge then by the sewing head on the bridge 21,22 25,26.Control device 19 is coordinated these motions under most of situation, to keep constant stitching size, seven stitchings of for example common per inch.This coordination need make bridge or braided fabric or both movement velocitys change usually, and the speed of sewing head 25,26 is changed.
The speed of syringe needle 25 is by control device 19 controls, and two pins of control device 19 controls drive the running of servo-drive system 67, and these pins driving servo-drive systems 67 drive the common pin driving shaft 32 on each bridge 21,22 respectively.Similarly, the speed that becomes ring 26 is by control device 19 controls, two runnings that become ring to drive servo-drive system 69 of control device 19 controls respectively have this pin to drive servo-drive system 67 on each bridge 21,22, drive the common one-tenth ring band drive system 37 on each bridge 21,22 respectively.Different runnings by two servo-drive systems 67 and two servo-drive systems 69 can be at the sewing head 25,26 on the different bridges 21,22 of different speed drive.Yet, syringe needle 25 on the same bridge 21,22 with become ring 26 with identical speed operation, and in the stitching forming process, synchronously cooperate, though they can carry out phasing each other a little, with realize that suitable ring is picked up, pin deflection compensation or other purposes.
In addition, in some cases, the horizontal movement of bridge is controlled, made them move, thereby trend towards offsetting the transversely deforming of the material that sewing operation caused 12 that is undertaken by each bridge 21,22 with opposite direction.For example, when two bridges 21,22 during, they can be controlled to be with opposite direction pitch of the laps in the identical colored type of sewing.Also can control for different colored types, make greatest practical extent ground offset the cross force that is applied on the braided fabric 12.
Above embodiment for the needle assembly 25 on each bridge 21,22 with become a ring assembly 26 to be provided with independent driving servo-drive system.Specifically, each bridge 21,22 comprises that pin drives servo-drive system 67, this servo-drive system 67 can be independently by the signal controlling of control device 19, and driving shaft 32, these 32 all needle assemblies 25 that drive on each bridge, and each needle assembly 25 can be optionally by clutch 100 engagements, and this clutch 100 is also operated by the signal of control device 19.In addition, each bridge 21,22 also comprises into ring and drives servo-drive system 69, this servo-drive system 69 also can be controlled individually by the signal of control device 19, and rotating band 37, this becomes a ring assembly 26 with 37 all that drive on each bridge, and respectively become a ring assembly 26 optionally to mesh by similar clutch 210, this clutch 210 is also operated by the signal of control device 19.This independently drives servo-drive system 67 and 69 and is convenient to above-mentioned separate type and begins structure and pin deflection compensation, and other controls are improved also of great use.
Also illustrate and illustrated design, needle assembly and the pin of bridge and become the plurality of optional scheme of ring drive unit and control system thereof.In Fig. 6 H, show the end or the tongue piece 49 of bridge 21 or 22, wherein pin drive motors 67 be connected to the needle assembly 25 that drives on the same bridge and become a ring assembly 26 the two.Servo-drive system 67 directly drives output shaft 32, and the pin that this output shaft 32 is this bridge drives power shaft.32 on axle drives inserted tooth band 32a, and this inserted tooth band 32a is driven into ring and drives power shaft 37a, to substitute the one-tenth ring rotating band 37 in the above-mentioned embodiment.For this embodiment, pin 132 with become ring 216 to be driven jointly, rather than control or set phase place individually.Because the sewing element mechanically connects, therefore reduced the possibility that dynamic failure or other faults cause quilting machines is produced mechanical damage.However, can drive servo-drive system 69 and by differential drive device 69a the output of this servo-drive system 69 is connected to a 37a simultaneously and recovers to control separately syringe needle and the ability that becomes the ring head by being retained as ring, this differential drive device 69a can be added on and be with drive unit 32a and become between the ring driving shaft 37a.
Become ring driving shaft 37a to be connected on the segmentation axle 37c by band 37b, this segmentation axle 37c is formed by a series of torque tube 37d that replace and gear-box 210a.Gear-box 210a is replaced into ring and drives clutch 210, but is driven into the one-tenth ring and the locator drive unit 212 of a ring assembly 26 continuously, rather than embodiment as indicated above, allows optionally to drive each parts.Only start or stop the pin element group that just determines to sew and whether participate in the sewing of flower type.Owing to become ring 216 not penetrate the material that will sew, therefore no matter whether corresponding pin driven unit 25 is driven, and becomes ring 216 to move continuously, but clutch 210 rather than gear-box 210a can be set.
An one-tenth ring assembly 26 of present embodiment comprises one-tenth ring as indicated above substantially and locator drive unit 212 shown in the assembly 26a among Fig. 2 C.They also respectively comprise needle plate 38, are rectangular slab 38a shown in the figure, and this needle plate 38 is fixing with respect to becoming ring drive shell 238, and comprises pin hole 81.Each gear-box 210a has output shaft, and this output shaft is locked in on the power shaft of ring and locator drive unit 212 by the axle collar 440, thereby these axles only can carry out axial adjustment relative to each other.Each gear-box 210a is supported by two bearings 441, and every side of gear-box 210a has around this bearing 441 of axle 37a, and this 37a is the input drive shaft of gear-box 210a.Bearing 441 is locked in respectively in the clamping element 442, and 442 of this clamping elements are bolted on the bridge.Like this, gear-box 210a only can carry out axial adjustment with respect to axle 37c.
When being installed in the rear portion 24 of bridge 21,22, can carry out four adjustings as a ring assembly 26a.Two levels are regulated the assembly 26a that can be used for regulating on the bridge.With clamping element 442 fastening before, can be with gear-box 210a location laterally on axle 37c, so that pin hole 81 is laterally aimed at pin 132.Can unclamp the axle collar 440 then, make assembly 26a towards or move away from pin driven unit 25, to regulate needle plate 38a with respect to fabric plane 16.By the dish (not shown) on the power shaft of the drive unit 212 in the housing 238 is aimed at the calibration hole 444 in the housing 238, be carried out to the angular adjustment of ring and locator 212.This is by with in the straight pin (not shown) patchhole 444, and the axle of device of rotation driving 212, finishes in this pin is installed to the hole of calibrating plate.After finishing adjusting, that the axle collar 440 is fastening.The vertical adjusting of relevant one-tenth ring 216 is undertaken by above regulating in conjunction with the illustrated one-tenth ring of Fig. 4 E.
Show the needle assembly 25 that produces simple pin sinusoidal motion, 25a is the same with the needle assembly embodiment, referring to Fig. 2 C.Each needle assembly 25a comprises clutch 100, and this clutch 100 optionally is sent to needle actuating device 102a and presser feet drive unit 104a with power from pin driving shaft 32.Needle actuating device 102a, presser feet drive unit 104a and clutch 100 and axle 32 are supported on the pin drive shell 418.Needle actuating device 102a comprises crank 106, and this crank 106 is driven by rotating band 164 by the output pulley 166 of clutch 100.Crank 106 is mechanically connected on the needle lock 108 by direct pin drive link 110a.The arm of crank 106 or eccentric part 112 are pivotally connected on the end of connecting rod 110a.The other end of connecting rod 110a is pivotally connected to from the pin 123 of piece 122 extensions of reciprocating shaft 124, and this reciprocating shaft 124 is the extension of needle lock 108.Axle 124 is installed and to be used for linear reciprocal movement, as mentioned in conjunction with the explanation of the relevant assembly 25 of Fig. 2.Presser feet drive unit 104a is roughly similar with the presser feet drive unit 104 that above combines Fig. 2 A explanation.The material of making the parts of needle assembly 25a allows syringe needle to need not the running of lubricating oil ground.
In common structure, the braided fabric 12 of 10 quiltings of quilting machines can supply to panel cut device and clipping device downstream, perhaps can roll and be transported to off-line cutting and clipping device.The motion of braided fabric 12 and bridge 21,22 also can be coordinated mutually with the panel cut operation of being undertaken by the panel cut assembly 71 that is positioned at framework 11 tops.Panel cut device 71 has the paired pruning head or the slitting head 73 in the direct downstream that is positioned at cutting head 72 of the opposition side of cutting head 72 and framework 11, this cutting head 72 traverses braided fabric 12 in the direct downstream of driven roller 18 and moves, and this pruning head or slitting head 73 are pruned from the selvedge of the side of braided fabric 12.
Cutting head 72 is installed on the track 74, to move across framework 11 ground from the resting position that is positioned at framework 11 left sides.Drive this cutting head 72 by alternating current generator 75 and stride across track 74, this alternating current generator 75 is fixed on the framework 11, and its output is connected with cutting head 72 by inserted tooth band 76.Cutting head 72 comprises paired cutting wheel 77, and this cutting wheel 77 rolls along the opposition side of material 12, and material 12 is between this is to cutting wheel 77, thereby laterally cuts the cloth of quilting from the leading edge of braided fabric 12.This is taken turns 77 and is connected with 72 gear, thereby the speed of taking turns 77 cut edge is proportional with 72 speed across track 74.
When the braided fabric of the material 12 that cuts down or cloth are mobile downstream from cutting head 72, prune or slitting by slitting head 73.Respectively have one group of relative feed strip 78 on the slitting head 73, this feed strip 78 is taken turns 79 with paired slitting and is driven in phase mutually.The title of being submitted on March 1st, 2002 by people such as Kaetterhenry is the U.S. Patent No. 6 of " Soft Goods Slitter and FeedSystem for Quilting ", 736, understand the structure and the operation of these slitting heads 73 in 078 in detail, this patent is herein incorporated by reference.
Use said structure, control device 19 makes braided fabric move in forward direction, make bridge up and down, right, move left, make down bridge up and down, right, move left, with each pin and optionally opening and closing of the drive unit that becomes ring, and the control pin speed right with the drive unit that becomes ring, and various combination and sequential combination, so that various colored types and operation efficiently are provided.For example, simple lines can be sewed sooner and be carried out with various combinations.180 continuous degree flower types (the colored type that can only use the motion from a side to opposite side and travel forward and sew) and 360 degree flower types (need reverse and sew colored type) can be faster than sew out more variation and speed of existing quilting machines.For the discrete colored type that needs are finished a colored type element, sewing tailor-tacking stitching, line of cut and jumped to the original position of new flower-shaped element, can sew out more variation and efficient are higher.Different colored types can be connected.The different colored type of can sewing simultaneously.Can material move or static situation under sewing flower type.Can synchronously sew with panel cut.Can be with transformable pin speed sewing cloth, and the different piece of flower type can be sewed with different speed simultaneously.Can automatically change setting, interval and the position of pin.
For example, bridge is fixed on selected position, by operation driven roller 18 braided fabric 12 is advanced by quilting machines then, so just can with the length of the braided fabric 12 simple straight line of sewing abreast.
By braided fabric 12 is fixing, and bridge is flatly moved, operate sewing head simultaneously similarly, just can be across the continuous straight line of braided fabric 12 sewing.Can on the bridge that moves, operate a plurality of sewing heads simultaneously, as long as the motion of bridge is equated with horizontal interval between the pin, just the identical horizontal line of the section of one-tenth of can sewing.Thereby, the horizontal line of can sewing more quickly.
The flower type is meant when quilting machines is sewed by repeating the colored type that identical colored type shape forms over and over continuously.Can be by making braided fabric only carry out one-way movement and can thinking the continuous colored type of standard in conjunction with the continuous colored type that transverse movement produces with respect to sewing head.These flower types sometimes are meant 180 degree flower types.Fix by the upright position that makes bridge, and feed roller 18 is advanced with mobile braided fabric, and bridge 21,22 is only moved horizontally, these flower types of just can on quilting machines 10, sewing out.On quilting machines 10, braided fabric 12 does not carry out laterally moving with respect to framework 11.
Fig. 7 A is the example that standard is spent type continuously.For traditional multineedle sewing machine, wherein all pins identical colored type of sewing simultaneously is as long as be provided with two hand-manipulating of needle that spacing distance is D, just as shown in the figure the colored type 900 of can sewing.Distance D is the preset parameter of this machine, can't change according to the variation of flower type.This is to fix because of the pin line space, and all pins must move together.For above-mentioned quilting machines 10, distance D can be arbitrary value, and this is because can use the sewing of pin on bridge stitching alternately, and uses pin on another bridge other stitchings of sewing.Two bridges can move with any correlation.In addition, if two bridges vertical range at interval is 2D, and the pin of each bridge begins for example putting 901 and 902 places, then along with braided fabric is upwards supplied with, they can move along opposite horizontal direction, thereby sewing out alternately row 903 and 904, should row 903 and 904 alternately be the mirror image of color type mutually.In this way, can offset motion by bridge and be applied to cross force on the material, thereby farthest reduce material deformation.
Need make braided fabric be called 360 degree flower types herein with respect to the continuous colored type that sewing head carries out bidirectional-movement.These 360 degree flower types can be sewed in every way.Can make braided fabric 12 keep static,, can make braided fabric 12 repeat length that advances then, stop, then still only by the motion of the bridge next repeat length of sewing fully by colored type repeat length of motion sewing of bridge.This 360 degree of sewing spend the more efficient and method that output is higher of type to comprise continuously: braided fabric 12 is advanced, with provide this flower type required with respect to cephalomotor braided fabric vertical component, and only sew with respect to the horizontal movement of braided fabric 12 and framework 11 by bridge.When arrive needing the colored type point of the vertical sewing direction of counter-rotating, by stopping feed roller 18 braided fabric 12 is stopped, and the bridge of sewing is moved up.When needing once more to reverse vertical direction, bridge is moved down and make braided fabric keep static, the initial position when bridge arrives beginning vertical motion and braided fabric motion and stops.Make the braided fabric motion then,, need counter-rotating once more up to the flower type so that the vertical component of colored type to be provided.The combination of the vertical motion of this bridge and braided fabric prevents that bridge from walking out outside the scope.
Fig. 7 B shows 360 degree a kind of example of flower type 910 continuously.The sewing of this flower type for example begins at point 911 places, only by the braided fabric vertical line 912 of sewing that moves vertically upward.Then, at point 913 places, braided fabric stops, only by the transverse movement of the bridge horizontal line 914 of sewing, the point of arrival 915 only moves upward sewing thread 916 by bridge then, only the transverse movement by bridge comes sewing thread 917 then, only the motion downward vertically by bridge comes sewing thread 918 then, and only the transverse movement by bridge comes sewing thread 919 then, and only the motion downward vertically by bridge comes sewing thread 920 then.Only the transverse movement by bridge comes sewing thread 921 then, then only by bridge move upward sewing thread 922, only the transverse movement by bridge comes sewing thread 923, the point of arrival 924 then.At this some place and along line 923, the position at bridge place is compared with arbitrfary point in the flower type, apart from its initial position below farthest.Then, bridge moves down with sewing thread 925, arrives the adjacent point 926 of point 915 that begins vertical motion with bridge, and bridge has turned back to its initial upright position, thereby stops the vertical motion of bridge, and braided fabric moves up with sewing thread, further the point of arrival 927.Only the transverse movement by bridge comes sewing thread 928, the point of arrival 929, thereby the starting point of having got back to colored type then.
The discontinuous colored type that forms by discrete colored type element, for example the trade mark TACK﹠amp that points out by the assignee who applies for; JUMP flower type is sewed in the mode identical with continuous colored type, and carries out tailor-tacking when each is spent the beginning of type element and finishes, and each flower type element is finished laggard line and pruned, and material is advanced to begin the next type of spending with respect to pin.The processing of 180 degree flower types and 360 degree flower types is with the flower type is identical continuously.The example of this 360 degree flower types 930 has been shown among Fig. 7 C.A kind of simple mode of these flower types of sewing be by bridge mobile sewing flower type, tailor-tacking flower type and line of cut, only jump to the next one then and repeat the flower type by the motion of braided fabric.Yet, add the braided fabric shown in Fig. 7 B motion to the colored groove part part of threading and can increase output.
According to U.S. Patent No. 6,026, the notion of explanation can link together different colored types in 756.The example that connects the flower type has been shown among Fig. 7 D, and this flower type can sew on quilting machines 10, need not the vertical motion of bridge, and the opposition side by the sewing mirror image is by two bridges clover bougainvillea type 941 of sewing jointly.Alternatively, bridge can be as Feng Ren the discontinuous colored type of the 360 degree colored type 941 of sewing, another bridge straight-line pattern of then sewing.
Continuous 360 degree flower types 950 have been shown among Fig. 7 E, and the sewing mode of this flower type 950 is the colored type 951 that a bridge sewing is replaced, and another bridge mirror image 952 of color type mutually of sewing.Use with Fig. 7 B in colored type 910 similar braided fabrics and bridge vertical motion logic this flower type 950 of sewing.In the vertical motion assigning process of determining bridge and braided fabric, before the sewing beginning, control device 19 is analyzed the flower type earlier.In this deterministic process, to repeat the flower type at each and begin the place, the lateral attitude of repeating the end of flower type must be identical with the position of flower type begin the time, and the upright position of braided fabric must be identical or more downstream (top).Can be by following bridge at first in the point 953 places sewing tailor-tacking stitching colored type 951 colored type 950 of sewing of sewing then.This sewing will be used the horizontal movement of bridge and the only vertical motion of braided fabric always, up to the point of arrival 954.Then, braided fabric stops, and bridge is vertically sewed, and gets on, get off, and the point of arrival 955 is put 955 places at this, and the lengthwise position of bridge on braided fabric is identical with point 954 places with the upright position.The braided fabric of Gong Geiing only is in vertical motion then, repeat this order with spend type 956 following half.
When the point of arrival 957, second bridge begins flower type 925 by carrying out the tailor-tacking stitching at point 953 places, and its sewing mode is identical with the mode of first bridge sewing flower type 951, just horizontal direction or laterally opposite.And side by side vertical move identical with braided fabric continues to sew colored type 951 and 952 by bridge, and the transverse movement of a bridge is identical with the transverse movement of another bridge and direction is opposite.Continue sewing,, and line cut off up to the bridge point of arrival 958 down, the tailor-tacking stitching of sewing herein.Sew one again and repeat after the flower type, second bridge arrives identical point, and its sewing tailor-tacking stitching also cuts off line.
By moving that a bridge forms a colored type and another bridge forms another colored type, two the different colored types of can sewing simultaneously.Control the running of the sewing head on bridge and the bridge with common imaginary axis line relevantly.The speed of this virtual axis can increase always, arrives its maximal rate up to a bridge, and the running of another bridge is than low velocity, and this velocity rate is determined according to flower type needs.The colored type 960 of Fig. 7 F shows this point.By the vertical line of bridge sewing flower type 961, sew the simultaneously zigzag line of colored type 962 of another bridge, the quilting speed of two bridges must be different.Since the stitching sequence of flower type 962 than the length of colored type 961, therefore spend type 962 be driven to the virtual axis that is set to ceiling for accumulation mark formation speed or the velocity ratio of object of reference be one to one.For example, if the line of flower type 962 is a miter angle, the stitching of then spending the stitching formation speed of type 961 to be set to flower type 962 forms 0.707 times of speed.
Can be in vertical motion combination with horizontal movement by making bridge, make simultaneously and come in to sew colored type before the material, thereby can be optimized process.For example, the colored type 970 shown in Fig. 7 G is spent type 973 in conjunction with rhombus flower type 972 with circle by orthoscopic border flower type 971 and is formed.If whole cloth is greater than 36 inches vertical bridge stroke, for example, if size L is 70 inches, then stitching forms and can be undertaken by following process: the prismatic of the cloth of at first sewing and circular the first half 974, make braided fabric static, use the logic of 360 degree flower types, make a bridge sewing rhombus, another bridge sewing is circular, perhaps other compound modes.Then, by in this process, braided fabric is moved up 35 inches sew border flower type 971, sew vertical line and horizontal line as indicated abovely.Sew then rhombus and circular big the latter half 975 of cloth.Alternatively, can spend type to make down the circle of bridge sewing bottom and the first half of rhombus (two row) cloth of sewing by the circle and the rhombus that make bridge sewing top.Then, after the boundary line of having sewed, the colored type of circle of the latter half of cloth and rhombus can distribute between each bridge similarly.
Use the quilting machines 10 of explanation herein, the quilting machines in the technology of having of can sewing can't sew out or put into practice in other the colored types that can not sew out.For example, Fig. 9 shows the part 500 of quilting braided fabric 12, on this part 500 quilting two colored type parts 501 and 502.For simplicity, these flower types all are chosen as continuous, unidirectional colored type, but can combine with the illustrated principle of a lot of colored type among relevant Fig. 7 A to 7G above about the illustrated principle of these flower types of sewing herein, to produce other more complicated colored types and the combination of flower type, so that the extra feature and the advantage of stitching process to be provided.Colored type 501 and 501 on the braided fabric part 500 has some common features and some distinctive characteristics.They all are continuous unidirectional colored types, and the colored type of the type is all produced in locking pin, multi-needle quilter respectively, and wherein identical colored type extends to another cloth from a cloth.For example, flower type 501 is called " onion " flower type, and this flower type alternately forms by sine curve 503,504 roughly.These curves 503,504 can be thought identical, but phase phasic difference 180 degree, thus they are assembled then separately to form illustrated onion type 501.Flower type 502 is called " rhombus " flower type, and this flower type alternately forms by zigzag line 505 and 506.These lines or curve 505 and 506 also can be thought identical, but phase phasic difference 180 degree, thus they are also assembled and separately spend type 502 to form illustrated rhombus.Two curves 503,504 of flower type 501 were made of the flower type repetition period 507, and two curves 505,506 of flower type 502 were made of the repetition period 508.Two colored types 501 and 502 by the braided fabrics 12 of smaller length 510 separately.
Each flower type 501 and 502 can be thought and comprises: (1) beginning length 511 and 512 continued for 180 degree or half colored type repetition period respectively; (2) intermediate length 513 and 514 continues one or more 380 degree or complete colored type repetition periods respectively; And (3) finish length 515 and 516, the also lasting respectively 180 degree flower type repetition periods.The explanation of these length 511 to 516 is at the braided fabric 12 that moves up as illustrated in fig. 9 by quilting machines 10, and quilting is carried out to bottomland in its top from figure.Every section curve spending type 501 and 502 finishes with tailor-tacking stitching sequence 518 all with 517 beginnings of tailor-tacking stitching sequence.The end tailor-tacking stitching 518 of the beginning of the tailor-tacking stitching of these curves and end and a colored type is the particularly advantageous characteristics of this aspect of the present invention with the vertical adjacent of beginning tailor-tacking stitching 517 of next flower type.The length 210 of the braided fabric 12 between the flower type 501 and 502 can be spent the length of types less than 180 degree, even basically less than for example 90 degree, 15 degree or zero degrees.Should mutual flower type length 210 can appear on the cloth of forming by two kinds of identical or different colored types (for example colored type 501 and 502 of two kinds shown in the figure), perhaps appear at two boundaries between the cloth.When mutual flower type length 210 appears at two kinds of boundaries between the colored type, can cut cloth in this zone, thereby can farthest reduce or eliminate the waste of the material of the braided fabric 12 between the cloth.In Fig. 9, each flower type 501 and 502 all is shown as the length in two colored type cycles, and each respectively by the beginning length 511 of half cycle length or 512, one complete cycle length intermediate length 513 or 514 and the end length 515 or 516 of half cycle length form.
Though each the flower type 501 and 502 can on the multi-needle quilter of prior art, sew, for example U.S. Patent No. 5,154,130 is described, have restricted, can be by understanding with reference to figure 9A.This in part because, for traditional multi-needle quilter, the multirow pin is installed on the common rigidity sewing header structure, pin is fixed on this structure and each hand-manipulating of needle is restricted to the distance of fixed interval, and all pins of all row carry out the relation that stitching forms and is maintained fixed simultaneously, and this relation is decided in the structural layout of sewing head by these pins.This stitching that forms simultaneously is that 522 first hand-manipulating of needle and the lateral separation each other that is positioned at 523 places are that 524 second hand-manipulating of needle forms by the lateral separation each other that is positioned at 521 places, and the longitudinal separation distance between each row is 525.This card clothing interposed structure define among Fig. 9 A flower type 501 the onion design colored type element concern size, particularly in a longitudinal direction.The pin position 526 of the lateral separation distance 527 on first hurdle and the pin position 528 of the spacing distance 529 on second hurdle have caused similar size restrictions.The horizontal spacing 527 and 529 of flower type 502 not necessarily equates with the spacing 522 and 524 of colored type 501 among Fig. 9 A, and is just inequality in Fig. 9 A.Because the structural limitations of equipment, flower type 501 is identical with 502 longitudinal pitch in the ranks 525.These spacings 525,527 and 529 define the size of the element of the rhombus design of spending type 502 among Fig. 9 A.
From per two pin hurdles are used four pins in every hurdle form colored type 501 shown in Fig. 9 A carry out the transition to as shown in the figure per two pin hurdles are used seven pins in every hurdle, need to change the setting of pin.For most of at least quilting machines of the prior art, change the normally manual operation of setting of pin.Alternatively, flower type 502 can use the colored type that uses the four piece pins identical with flower type 501 to form of being restricted to (for example have four lines rhombus rather than seven go the colored type of rhombuses) to replace, thereby from spending type 501 to change to the setting that colored type 502 does not need to change pin.In addition, because no matter which of sewing head all pins of locking pin quilting machines be arranged in, they all begin and stop sewing simultaneously, therefore colored type curve 503 that lays respectively at position 521 and 523 places of being sewed by the pin on the different rows and 504 the start and stop bit longitudinal separation distance of putting is necessary for 525, makes all to have stayed in the beginning of each flower type 501 and 502 and end to occupy length and equal half length part apart from one of the only curve 503 of 525 braided fabric or 504.This has caused having produced length 530 between the adjacent colored type on the braided fabric 12 is the obsolete material or the waste product of two length 525, and this material or waste product must excise and abandon.This requirement makes colored type extend to the end, cutting upstream and the downstream end of cloth.Have the ability of the cloth of following colored type below this has eliminated and has produced, this flower type has the colored type curve that is begun and stop and producing at identical point by different pin hurdles from the end part interval of cloth.In addition, the also not known tailor-tacking stitching that the lateral alignment of being sewed by the pin on different pin hurdles is arranged.In addition, also do not provide the equipment that is used for the following cloth of quilting and the combination of technology in the prior art, promptly this cloth has two kinds of colored types, and the beginning of the curve of this flower type and end position are in line, and these two kinds colored types on same cloth mutually closely at interval, as shown in Figure 9.
According to one embodiment of the present invention, on the multi-needle quilter of remodeling, produced colored type as shown in Figure 9.This flower type has following restriction, promptly spends the repeat length 507 of type 501 roughly identical with the repeat length 508 of spending type 502.In this embodiment, multi-needle quilter for example U.S. Patent No. 5,154,130 described multi-needle quilters is provided with the pin of auto retractable or selection, thereby can still sew by another hurdle pin of inoperative while at a hurdle pin.In addition, this multi-needle quilter has the ability that makes braided fabric 12 with respect to the relative motion of hurdle that carries sewing head or bridge counter-rotating.Though Shuo Ming method is used for sewing head with respect to the quilting machines framework is vertically fixing, braided fabric 12 longitudinally moves forward by framework and move more short-range quilting machines at least backward,, this explanation is fixed on the bridge quilting machines that can vertically move together with respect to material with the form of array herein thereby also can be applicable to sewing head.By this method being described with reference to figure 9B to 9I.
Referring to Fig. 9 B, braided fabric 12 advances by having the quilting position of pin hurdle array 532 with the direction of arrow 531, and this pin hurdle array 532 comprises upstream needle hurdle 533 and downstream needle hurdle 534.Pin hurdle 533 and 534 fixed interval distance 525.The pin on upstream needle hurdle 533 is by the colored type curve 503 that begins to sew of sewing tailor-tacking stitching sequence 517 on pin position 523.Behind braided fabric 12 forward travel distances 525, shown in Fig. 9 C, start the pin on the downstream needle hurdle 534, and by the colored type curve 504 that begins to sew of sewing tailor-tacking stitching sequence 517 on pin position 521, so that beginning is at the original position curve 504 that begins to sew, the original position of this original position and curve 503 is aligned in same lengthwise position.Then, along with two pin hurdles 533 and 534 form stitching curve 503 and 504 simultaneously, braided fabric 12 is advanced further, up to the position that arrives Fig. 9 D,, line is cut off in this some sewing tailor-tacking stitching sequence 518, and the pin of position 523 on the inactive pin hurdle 533.Then use the pin of position 521 on the pin hurdle 534 to proceed sewing, be in the position shown in Fig. 9 E up to braided fabric.In this position of braided fabric 12, the pin on pin hurdle 534 sewing tailor-tacking stitching sequence 518 is cut off line then, and the pin on inactive pin hurdle 534, thereby finishes colored type 501.
This point, machine has been ready to begin to sew colored type 502, remove non-woven fabric 12 and advance to and cross upstream needle hurdle 533, and the position shown in the distance 525 to Fig. 9 F of must falling back, thus can by with the similar order of the sewing flower type 501 of the above Fig. 9 of combination B to the 9E explanation colored type 502 of sewing.For the colored type 502 of sewing, start the pin of the position 528 on the pin hurdle 534, with sewing tailor-tacking stitching sequence 517 curve 505 that begins to sew, along with braided fabric 12 forward travel distances 525 these pins begin sewing.Therefore, under the situation of waste material not, can begin flower type 502 from 510 position in end-to-end distance from flower type 501.Then, when the position that is positioned at shown in Fig. 9 G, the pin that starts position 526 on the pin hurdle 534 tailor-tacking stitching sequence 517 of sewing, thereby beginning curve 506.Then, along with the while of the pin on two pin hurdles 533 and 534 sewing thread trace curve 503 and 504, braided fabric 12 is advanced further, up to the position that arrives Fig. 9 H, in this some sewing tailor-tacking stitching sequence 518, with the pin of position 528 on the line cut-out and the pin hurdle 533 of stopping using.Then proceed sewing, be positioned at the position shown in Fig. 9 I up to braided fabric by the pin of position 526 on the pin hurdle 534.In this position of braided fabric 12, the pin on pin hurdle 534 sewing tailor-tacking stitching sequence 518 is then cut off line and the pin on the pin hurdle 534 of stopping using, so finish colored type 502.If near the colored type of finishing 502 sewing another the flower type 501 or 502, then braided fabric 12 must reverse once more the distance 525, with begin next the flower type.
Because pin hurdle 533 and 534 moves together, so when tailor-tacking stitching sequence 517 among sewing Fig. 9 C and Fig. 9 G and the tailor-tacking stitching sequence 518 among Fig. 9 D and Fig. 9 H, to start the pin on other pin hurdle, thereby, will be in the tailor-tacking of the sewing midway stitching sequence of the curve that uses these other pin sewing.This may be unwelcome on aesthetic.As possibility, these pins of can under the situation of not cutting off line, stopping using, this has caused undesirable line operational issue, causes loose or stitching disappearance possible in the line sequence.For these and other reason, when the colored type that sewing has as shown in Figure 9 a characteristic of spending type 501 and 502 makes up, preferably adopt quilting machines 10 to carry out, as explanation below with reference to Fig. 9 J to 9N.
Use quilting machines 10 mentioned above can sew simpler and more neatly colored type 501 shown in Fig. 9 and 502 combination.The bridge 21 and 22 that Fig. 9 J shows quilting machines 10 is positioned at the middle any original position of its stroke range, and is enough high on framework, to allow to carry out some downward strokes.As the beginning of sewing, can be positioned at the tailor-tacking stitching sequence 517 that the curve 503 of colored type 501 begins to locate by the following pin sewing of bridge 21.Then, following bridge 21 curve 503 that begins to sew moves down simultaneously, and braided fabric 12 is static, goes up bridge 22 simultaneously and is moved down into identical original position, arrives the position shown in Fig. 9 K.This motion can be finished or substitute by moving upward of braided fabric 12.When being positioned at the starting position, the pin of the last bridge 22 tailor-tacking stitching sequence 518 that curve 504 begins to locate of then sewing.Because the sewing head on bridge 21 and 22 can independent operation, thus can be by last bridge 22 sewing tailor-tacking stitching sequences 518, and with continue to sew the incessantly normal stitching of curve 503 of bridge 21 at present.In addition, the distance that following bridge 21 moves down can be any distance in its stroke range, as long as this distance allows enough gaps and allows bridge 22 be placed on original position.For example,, the method for minimizing braided fabric distortion mentioned above be can use, sew curve 503 and 504 in the opposite direction laterally moved by bridge 21 and 22 by moving down the complete colored type cycle 513.
Then, bridge 21 and 22 is vertically static, and braided fabric 12 is moved up, thereby curve 503 and 504 is sewn into the end of colored type, shown in Fig. 9 M.In arriving the process of this state, braided fabric 12 passes the position shown in Fig. 9 L, has arrived the end of curve 503 in this position, by the bridge 21 tailor-tackings suture mark sequence 518 of threading.This tailor-tacking stitching sequence can realize in the following manner, and promptly braided fabric 12 moves continuously, and by bridge 22 curve 504 of sewing incessantly, moves and finish the horizontal and vertical of other by bridge 21.
After finishing colored type 501, shown in Fig. 9 M, braided fabric 12 stops, and bridge 21 and 22 moves up and arrives the identical starting position shown in Fig. 9 J up to bridge.Then start or stop syringe needle as required, new flower-shaped to prepare sewing.In the case, start the sewing head of three centres, each sewing head between four startups are used to sew four sewing heads of colored type 501, the colored type 502 thereby all seven sewing heads can be sewed.Then, the sewing to spend type 502 with the roughly the same mode of sewing flower type 501.
Alternatively, use quilting machines 10, behind the curve 503 of finishing colored type 501, following bridge 21 can continue to begin the curve 505 of colored type 502 of sewing immediately, even go up bridge 22 is still spent type 501 in sewing curve 504 simultaneously.This is shown in Fig. 9 N.When type is not suited in two bridge sewing, the motion of the control device 19 control bridges of quilting machines 10, the motion and the sewing head drive unit of braided fabric, its control mode can keep the good stitching density of planning for the curve of being sewed by two bridges, seven stitchings of for example common per inch.This can realize usually in the following manner, promptly keep a bridge vertically static, and braided fabric moves with constant feed speed, sewing head on the perhaps static bridge is sewed with constant sewing velocity, simultaneously by control other bridge and other bridges on sewing head compensate mobile.
Though in conjunction with continuous, unidirectional colored type Fig. 9 to Fig. 9 M is illustrated, this explanation is in order to be illustrated more clearly in some feature and principle.These features and principle can be used with other flower type feature, for example in conjunction with Fig. 7 to Fig. 7 G illustrated feature and principle.Can comprise in the situation of two-way lengthwise movement that in these flower types for this other flower types or flower type feature, the principle of the method for Fig. 9 to Fig. 9 M may be identical purely vertically moves forwards or backwards.
The cutting of cloth can be synchronous with quilting.When the point that cloth laterally excises from braided fabric 12 will be arrived on the braided fabric length excised cutter head 72, braided fabric donor rollers 18 stopped braided fabric 12, cuts then.By changing moving upward of braided fabric into bridge move downward, can make sewing continue not interrupt.This is prepared in advance by control device 19, control device 19 makes braided fabric 12 advance by roller 18 is turned round quickly than ongoing sewing velocity, thereby allowing bridge sufficiently to move down sufficiently to be positioned at its extreme lower position top, sew downwards in the cutting operation process of this bridge when braided fabric stops allowing.
When using different pins to make up the different colored type of a cloth one cloth ground sewing, perhaps when the different pin of use made up different piece on the cloth of sewing, control device can or stop the pin unlatching.The colored type combination that can be used to sew of these features, as U.S. Patent No. 6,026, described in 756, this patent is by with reference to being herein incorporated.Use the quilt machine 10 of explanation herein, the more colored type of wide range of types can make up and sew effectively.
For example, embodiments of the present invention have been produced complicated colored type, and this compound colored type will spend type (the zigzag flower type 550 that for example illustrates among Fig. 9 P) and " TACK AND JUMP (tailor-tacking and jump) " flower type (the circular array flower type 552 that for example illustrates among Fig. 9 Q) to make up continuously.Can synchronously sew on quilt machine 10 this colored type 550 and 552 are to produce the combined flower type 554 shown in Fig. 9 R.When sewing this flower type 554, can on the braided fabric that advances continuously, sew by the sewing head of following bridge 21 and spend type 550 continuously, and described sewing head preferably simultaneously alternately carries out left and right sides transverse movement on fixing horizontal level, and use the sewing head of going up bridge 22 and flower type 550 in a zigzag mutually in phase sewing spend " TACK AND JUMP " circle that disperses of type 552.Can be by the continuous flower type 550 continuously of sewing that moves of four sewing heads of following bridge 21 when supplying with braided fabric downstream with constant speed, and circular, and carry out tailor-tacking and line of cut at end of each circular flower type by sew off and on 360 degree of colored type 552 of three sewing heads of last bridge 22.Alternatively, can be by six sewing heads of last bridge 22 circle of sewing, three sewing heads, three mutual circles of delegation of sewing simultaneously wherein, three sewing heads circle flower types of the mutual row of sewing simultaneously then in addition.Use six sewing heads to get wideer in still less horizontal bridge motion and the circular interval of permission.
The illustrated embodiment of spininess quilt machine set forth above is provided with the different a plurality of axis of movements of axis of movement with traditional spininess quilt machine.Some embodiment of these quilt machines has two or more bridges, this bridge can be distinguished or control independently, and each bridge disposes the sewing needle of embarking on journey, and these sewing needles can drive together, each sewing needle drives respectively or independently, and perhaps the mode with various combinations drives.Each bridge can have the drive unit that can independently control, is used to make sewing element, pin and becomes the ring reciprocating motion.What drive unit was the most practical is the rotation input of the reciprocating element of operation of for example rotating shaft.The independent operation of the drive unit on each bridge can allow the independent sewing operation of sewing head or sewing head group, perhaps allow one or more sewing head idle running, and one or more sewing heads is sewed simultaneously.
Illustrate, can each sewing head (comprising that each syringe needle becomes the ring head with each) be connected on the common rotating driving device by the clutch that can independently control, thereby colored type flexibility is provided, and this clutch can be by equipment control device operation to open or to stop sewing head.This head element that is configured to usually sew is right, and each syringe needle has corresponding similar modular and becomes the ring head.Every enemy can open or stop individually, may optimally be, they normally synchronously or are out of phase opened together in its cycle or stop.Alternatively, can only there be syringe needle to be provided with selectivity and drives connection, form the output that the ring head can be connected to drive motors, with running continuously.This connection can be direct and permanent, perhaps can regulate, convertible or can carry out phasing about needle actuating device, such as by provide differential drive mechanism in becoming the ring transmission system.When adopting directly driving, can will become the ring head driving apparatus to be connected to input drive shaft by gear-box rather than clutch.In the time will becoming ring to be installed on the quilt machine, each becomes the ring head can further be provided with into aligning dish on the ring driving shaft, to allow respectively to become the ring head to become ring head or needle actuating device to carry out accurate phase place setting with respect to other.In addition, each becomes ring head capsule body can be provided with the two-dimensional adjustment device in the plane vertical with pin, aims at corresponding syringe needle so that make into the ring head when becoming the ring head to install.
As indicated above, for the stitching disappearance that the possibility, the particularly colored type after cutting into the ring line that reduces the stitching disappearance begins to locate, provide separate type to begin the control method to avoid beginning the to locate stitching disappearance.Separate type begins a kind of utilization that structure is following structure, promptly allows needle actuating device to remove the structure that is connected and moves individually with one-tenth ring drive unit.Begin structure by this separate type, beginning hour hands and becoming ring to carry out origination action respectively, thereby making picking up of stitching to expect.This is by guaranteeing that becoming ring at first to pick up (promptly passing) top line ring realizes before the triangle of bottom line ring is picked up or passed to pin.
By the separate type start method, stop at pin by this mechanism and be arranged in the top dead center position in its cycle and become ring to extend, and by pin with become the locked and homophase of ring, these elements unlocked and become ring in its cycle, to advance.For example, 180 retrieving positions of spending into ring that can advance, or by some less amount of advancing, this advance amount sufficient to guarantee becomes the ring thread triangle not in the path of pin.15 to spend to 20 degree (for example 17 degree) may be enough.Then can make the pin similarly amount of advancing so that its with become the ring homophase, to guarantee that this pin can leak ring thread triangle or one-tenth ring wire loop when pin penetrates colored section bar material for the first time.Again lock these elements then.Along with being advanced further of element, become ring before one-tenth ring wire loop is picked up by pin, to pick up the needlework ring thereupon.
According to certain principles of the present invention, be used for pin by use and can carry out this separate type with the single driving servomechanism installation that becomes ring and begin.Along with pin with become ring all to drive by same motor, realize this point by phase adjustment mechanism is set.In addition, according to other principle of the present invention, can make into the phase advance of the phase place of ring with respect to pin, can be moved into ring and pin then together and keep phase difference between the two simultaneously, then can ring make into ring and pin is got back in the same-phase by being withdrawn to, for example, slow down with respect to pin or stop and making pin catch up with into ring simultaneously by making into ring, along with pin with become the ring homophase, can continue this cycle from this point.
Wherein, as shown in the figure, spininess quilt machine 10 comprise two removable and can independent exercisable bridge 21 and 22, have a plurality of syringe needles that can control respectively 25 and corresponding a plurality of rings 26 that become on each bridge, the speed of syringe needle 25 can be controlled by control device, this control device control pin drives the running of servo-drive system 67, and this pin drives the common pin driving shaft 32 on servo-drive system 67 drive axles 21.Similarly, become the speed of ring 26 to be controlled by control device, the one-tenth ring on this control device control bridge 21 drives the running of servo-drive system 69, and this becomes ring to drive the common one-tenth ring band drive system 37 that servo-drive system 69 drives on one of them bridge.By to two servo-drive systems 67 on the bridge separately and the different operating of two servo-drive systems 69, the sewing head on the different bridges 21,22 25,26 can be driven and be different speed.Yet, syringe needle 25 on the same bridge 21,22 with become ring 26 usually and synchronously with identical speed operation, in the stitching forming process, to cooperatively interact, though they can carry out phasing each other a little, with realize suitably that ring is picked up, pin deflection compensation or other purposes.
Some embodiment for the needle assembly 25 of each bridge with become a ring assembly 26 that independent driving servo-drive system is set.Specifically, each bridge comprises that pin drives servo-drive system 67, this servo-drive system 67 can be independently by the signal controlling of control device 19, and driving shaft 32, these 32 all needle assemblies 25 that drive on the corresponding bridge, and each needle assembly 25 can be optionally by clutch 100 engagements, and this clutch 100 is also operated by the signal of control device 19.In addition, each bridge also comprises into ring and drives servo-drive system 69, this servo-drive system 69 also can be controlled individually by the signal of control device 19, and rotating band 37, this becomes a ring assembly 26 with 37 all that drive on each bridge, and respectively become a ring assembly 26 optionally to mesh by similar clutch 210, this clutch 210 is also operated by the signal of control device 19.This independently drives servo-drive system 67 and 69 and can control independently, so that above-mentioned separate type begins structure and pin deflection compensation, or is used for other control improvement.Had and used this independently drive system 67 and 69 separate type begin structure, when after cutting off line, beginning the flower type, along with being maintained at its top dead center position, pin become ring to advance, operate pin then and make it by similar cycle portions, wherein pin will leak the triangle ring in the ring line when descending.Then pin with become ring to drive synchronously and together again, will pick up needlework following one-period from forming ring.
According to a kind of embodiment, when being positioned at starting position shown in the similar Fig. 5 P of Fig. 5 L, with needle actuating device with become the ring drive unit to remove to be connected, pin can be maintained at its top dead center position.Become the ring drive unit half period of then advancing, move to position shown in Fig. 5 Q will become ring 216, thereby will become ring 216 to be recovered to outside the path of pin 132.Become the ring drive unit to be maintained at the position of its half period then, needle actuating device then starts, and pin 132 is dropped to the position of its half period, this makes pin 132 away from bottom line 224, shown in Fig. 5 R.Then needle actuating device with become the ring drive unit to link together once more, and synchronously advance together, near stitching 3/4ths positions in formation cycle, begin to pick up the needlework ring from forming ring 216, shown in Fig. 5 S, and proceed to the complete cycle position from this position, shown in Fig. 5 T.Then, these elements continue to move through the next cycle, can see the formation of stitching in this cycle, shown in Fig. 5 U to Fig. 5 X.
In Fig. 6 H, show the end or the tongue piece 49 of bridge 21 or 22, wherein pin drive motors 67 is connected to the needle assembly 25 that drives on the same bridge and becomes a ring assembly 26.Servo-drive system 67 directly drives output shaft 32, and the pin that this output shaft 32 is this bridge drives power shaft.32 on axle drives inserted tooth band 32a, and this inserted tooth band 32a is driven into ring and drives power shaft 37a, and it substitutes the one-tenth ring rotating band 37 in the above-mentioned embodiment.For this embodiment, pin 132 with become ring 216 to be driven jointly, rather than individually control or phasing.Because the sewing element mechanically connects, therefore reduced the possibility that dynamic failure and other faults cause quilting machines is produced mechanical damage.However, can drive servo-drive system 69 and by differential drive device or phase adjusting apparatus 69a the output of this servo-drive system 69 is connected to a 37a simultaneously and recovers to control individually syringe needle and the ability that becomes the ring head by being retained as ring, this differential drive device or phase adjusting apparatus 69a can be added on and be with drive unit 32a and become between the ring driving shaft 37a.
In Fig. 6 J to 6M, wherein Fig. 6 J is the vertical view that has the bridge 21 of differential drive device 69a, and servomotor 67 direct driving shafts 32 are with operation syringe needle 25.This differential drive device 69a comprises and transmits rotating band 32a, and this transmissions rotating band 32a is connected between the power shaft 37a of pin driving shaft 32 and one-tenth ring rotating band assembly 37, and this one-tenth ring rotating band assembly 37 is driven into ring 26.Fig. 6 K is the cutaway view that passes phase adjusting apparatus 69a, and the phase adjusting apparatus 69a under default setting has been described, under this default setting, axle 32 synchronously drives syringe needle 25 and becomes ring 26 homophase with 37a.Fig. 6 M shows in detail phase adjusting apparatus 69a.
Paired rotation idler pulley 301 and 302 is installed between the paired idle running plate 303 and 304 ring with expansion bands 32a, make that in band 32a the high rate of tension of driving pulley 37c that is positioned at on the ring driving shaft 37a is lacked than hanging down the slack of rate of tension than 306 than the slack of side 305.Pneumatic type linear actuators 310 is connected between the housing and idle running plate 303 and 304 of phase adjusting apparatus 69a, so that plate is pivoted, slack among this feasible band 32a moves to the high rate of tension side 305 of belt wheel 37c, this makes into ring driving shaft 32a and rotates forward, makes into the Phase advance of ring 26 a relative syringe needle 25.This be configured to make into ring in its cycle, advance about 25 the degree.When the flower type begins after cutting off line, along with pin is positioned at top dead centre, start actuator 310 so that become ring reach 25 degree, operate pin then and become ring to pass 180 degree, keep the phase place adjustment simultaneously, then by stopping actuator 310 and make into that ring counter-rotating 25 degree make into ring and pin is synchronous again, thereby pin is descending and do not pick up triangle or one-tenth ring line.Then pin with become the ring advanced in unison, pick up down needlework ring the half period from forming ring.
Many other motions will obtain same result.For example, if actuator 310 is servomotors, becoming ring can be 180 to stop when spending at the travelling phase angle, for example, when pin advances to 180 when spending from 155 degree, thereby just need not to be inverted to that the direction of ring 26 makes pin and to become ring synchronous again.Yet the phase place adjustment of 25 degree is fit to some design of quilt machine, and other phase place adjustment may be more suitable for other quilting machines design.As indicated above, the disappearance of needle actuating device stitching when becoming the ring drive unit to avoid beginning separating when the beginning.The line drive unit cycle has other purposes with one-tenth separating of ring drive unit cycle, for example is convenient to the pruning of line.The use that separate type begins structure can be eliminated the needs for the line deflecting wedge 430 shown in Fig. 5 Y.Shown in phase place adjust actuator the better way device be provided, operate this device so that the phase relation that becomes ring in the homophase setting with conversion between becoming ring the phase place of standing part being provided with in the cycle before being in pin.To pin with become ring to use variable differential drive device or independent servomotor to provide higher angular flexibility with respect to the phase place adjustment of pin for becoming ring, and these two kinds sewing elements are moved in its whole cycle simultaneously with different speed with allowing.
When beginning to sew colored type, separate type begins structure can be combined with other structure in a different manner.The cycle that scrapes in conjunction with Fig. 5 H to 5J explanation is wherein a kind of structure.After the starting point that jumps to new flower-shaped or flower type element, the needlework tail is positioned on the face of material, and extends along fabric from the hole that pin passes the pressure foot.The cycle of scraping is a kind of mode that removes this needlework tail by the back side of moving these needlework tails to material.Described quilt machine can be made as and use or omitting in this alternative mode that scrapes the cycle and operate.If product quality is preferred, then use the cycle that scrapes that the needlework tail is removed from the surface of product fully.This may increase by 2% to 20% quilt time, depends on the structure of colored type and quilt machine.Alternatively, can be for client or goods provide at a high speed, the low quality pattern, this pattern can be allowed and had some line tails.In order to reduce the quilt time, can when bridge or braided fabric advance, partly carry out separate type between the flower type and begin.
Begin to be used in combination if scrape cycle and separate type, then separate type begins and should carry out after scraping the cycle.Yet, before scraping the cycle, carry out separate type and begin to improve the reliability and the predictability in the cycle of scraping, still need further separate type to begin but this scrapes after cycle, this be since for the first time the effect that begins on the line position that periodic on-line mark sequence begins of separate type do not finish because of scraping the cycle.Separate type begins and the result that scrapes the combination in cycle is that the sewing element in two cycles forms first stitching of sequence reliably, and does not have visible top line tail.
First stitching normally begins first stitching of tailor-tacking sequence, and is as indicated above, and this sequence can be the stitching sequence of being interrupted.The tailor-tacking stitching of this interruption comprises the stitching of bunchiness, and this stitching with one or more long stitchings to start with, carries out the transition to a series of continuous stitching of being sewed by the pin sine curve formula of standard by the stitching that shortens gradually usually then.The preferred tailor-tacking stitching sequence of different quilt products can be different.Difference may be the quantity of tailor-tacking stitching sequence and the combination of forming the different stitchings of specific tailor-tacking stitching sequence.For example, the harder or thicker needed tailor-tacking stitching of quilt product sequence may be better with elasticity or different than thin quiited products.Can use the tailor-tacking stitching type that will be applied to specific products by the information in the product database of being stored in being responded by control device.Data can directly be specified needed tailor-tacking stitching in the product database, perhaps control device can the application searches strategy or algorithm draw or determine the tailor-tacking stitching sequence that specific products is required.
Product database can also comprise other parameter based on product.For example, except tailor-tacking stitching sequence, neededly scrape periodic path or distance may be also different because of product, and control device can be determined the cycle that scrapes that will carry out based on the data of reading or drawing from product record.Product record in the product database generally includes identification, the combination of materials of composition material braided fabric and the size of cloth of quilt flower type.Can be increased in these information or by the feature that above or hereinafter proposes and to draw from these information based on product.
Other parameters based on product can be included in the location that will carry out the line of line pruning when colored type finishes.For example, for the blade that makes thread-cutting device when the flower type finishes more easily with the line contact wire and clamp into the ring line, can carry out the move operation of bridge, bridge is moved at the specific direction with respect to the sewing element.This moving can be the predetermined distance that for example bridge moved up.Should mobile the stitching hole be pulled down with respect to needle plate, and orientate line as lean against the lower limb of pin hole in the needle plate specified point.These lines will directly extend to into ring from this point, make their position to expect, and make line suitably and reliably contact with cutting element.Finish the required bridge amount of exercise of this operation and may depend on the product of wanting quilting.For example, line is positioned at the cutting optimum position, the required bridge displacement of thicker material may compare the required length of thin material.This distance can be from product database data read or draw.
The feature based on product in addition is the line of revising, thereby prevents that under specific circumstances needlework from pulling out from pin.For some material, thin material for example, the not online tail of this material provide enough frictions to guarantee can pull out needlework from the needlework supply side reel when beginning.Therefore, for the product that forms by this material, increase extra bridge motion so that line is deviate from.This has reserved extra needlework slack on pin, reduced the towing that the needlework reel produces on needlework.This extra bridge moves and is based on that the data that read or draw from product database increase.
The capable stability of material that provides of the extra stitching of sewing also is the feature based on product that can read from product database or draw.For example, a series of stitchings that are called " stable row " herein may be more useful at some tailor-tacking and jump type products, and this product may be removed wherein a pair of sewing head in material one side.May break away from the colored type of edge of materials for sewing head, will be along the edge of materials this stability line of sewing.When sewing head moved back on the material, this stitching was about to prevent that sewing head from hooking or stabbing the edge of bad one or more material layers.
For example, when braided fabric aligns (aspect downstream in the past) with the left side of quilting machines, need the stable row of sewing.In this case, horizontal when mobile when bridge, the leftmost side sewing head of bridge will move near the left hand edge of material, but can not deviate from from this left hand edge.Yet when bridge moved to the right side, the sewing head of the rightmost side can be deviate from from the right hand edge of material.After deviating from, when bridge turned back to the left side, the sewing head of deviating from material may stab bad material.It is stable capable longitudinally to sew along the right hand edge of braided fabric, is bonded together with the loose layer with material, and it is bad to prevent that material from being stabbed.Along each layer of the capable maintenance of stitching material of braided fabric right hand edge together, thus the sewing head that the top layer of material or each layer can freely not be returned hooks.
This feature only needs in some types flower type, i.e. the tailor-tacking and the flower type array that jumps, and sewing head laterally moves the edge of braided fabric when sewing head is not sewed in this flower type.This feature is based on product, and relate to when braided fabric and increase the capable colored groove part of longitudinal stability that the to sew logic of threading during with respect to the bridge advanced downstream, comprise: when bridge upstream moves in the framework up-downgoing and with respect to braided fabric, and the flower type is the colored type that makes the sewing head of the rightmost side break away from the edge of quilting machines.Stable row sewing feature is closed usually, still for the product of the stable row of needs, will enable this feature automatically from product database.
When stable row feature is opened, no matter when the bridge of lowermost end or below that the upstream bridge moves to stable row of being sewed or the colored type of being sewed or upstream leading edge are (in the illustrated embodiment, this is normally when braided fabric moves up with respect to bridge), controller will make the sewing head of the low order end of bridge stablize row along the right hand edge sewing of braided fabric.Should stablize row can sew and between flower type element and from the end of last colored type, sew, be repositioned onto new colored type zero position up to bridge and material.
Those skilled in the art will appreciate that application of the present invention can change, the present invention describes by preferred implementation, can carry out various increases and modification under the prerequisite that does not depart from principle of the present invention.
Claims (29)
1. a syringe needle that uses pin and the one-tenth ring head that becomes ring begin to form the method for chain stitching sequence in quilting operation, and this method comprises:
The needlework tail extends to the top line end of the pin side for the treatment of quilted material from pin, and become ring line tail to extend to the one-tenth ring thread end of the one-tenth ring side of needle plate from becoming ring, when beginning to form chain stitching sequence, be controlled to the ring line, made that before pin enters into the ring triangle one-tenth ring is picked up the ring in the needlework.
2. a syringe needle that uses pin and the one-tenth ring head that becomes ring begin to form the method for chain stitching sequence in quilting operation, and this method comprises:
When in multilayer material, beginning to form chain stitching sequence, before pin is in the stitching formation cycle, will become ring to be driven into one-tenth ring position outside the path of pin separately with pin; Then
Under the situation of the ring in not picking up into the ring line, pin is driven into the pin position of passing material,, makes pin and become ring all to advance by the part in first stitching formation cycle in this position; Then
Driving needle with become ring to form the end in cycle in phase by first stitching, thereby by becoming ring to pick up the needlework ring.
3. method according to claim 2, this method also comprises:
Described begin to form chain stitching sequence before, make pin and become ring and material to move a segment distance abreast, this distance is enough to will be pulled to the top line end of the pin side of material from the needlework tail that pin extends from the pin side of material.
4. method according to claim 3, this method also comprises:
Described mobile pin with become ring before, to become ring to be driven into one-tenth ring position outside the path of pin separately with pin, under the situation of the ring in not picking up into the ring line pin is driven into the pin position of passing material then, then driving needle with become ring in phase by becoming ring to pick up the needlework ring.
5. method according to claim 3, this method also comprises:
Provide for the control of moving that optionally starts or stops described pin.
6. method according to claim 2, this method also comprises:
In the sewing tailor-tacking stitching cycle, this tailor-tacking stitching cycle comprises: described first stitching forms the cycle, is connected to the additional stitching sequence in the selected tailor-tacking stitching sequence thereafter.
7. method according to claim 6, this method also comprises:
Product database is provided, and this database can be visited by control device, and comprises the parameter that limits each product in a plurality of quiited products; And
In the sewing tailor-tacking stitching cycle, comprise and the qualification of described control device visit is treated that the data of quiited products respond, the tailor-tacking stitching sequence of choosing that sewing is selected from the tailor-tacking stitching sequence of a plurality of pre-qualifications.
8. method according to claim 7, wherein:
Described database comprises the data that limit the combination of materials that constitutes product; And
The described tailor-tacking stitching sequence of choosing draws from the material that is limited by described data is formed.
9. a syringe needle that uses pin and the one-tenth ring head that the becomes ring method of chain stitching sequence of in quilting operation, sewing, this method comprises:
With a position that is driven into independently of one another in the stitching formation cycle in pin or the one-tenth ring, and will wherein another be driven into its corresponding position in this stitching formation cycle, thus with pin and the formation stitching that becomes ring to move to depart from the stitching formation cycle concern; Then
With described pin or become in the ring another to be driven into described relevant position in the stitching formation cycle; Then
Driving needle with become ring to form at least a portion in cycle in phase by stitching.
10. chain stitching cell driving device, this drive unit comprises:
Needle actuating device;
Become the ring drive unit;
Motor, this motor are connected to and drive described needle actuating device or described one-tenth ring drive unit;
Phase adjusting apparatus, this phase adjusting apparatus are connected described needle actuating device and become between the ring drive unit with described; And
Actuator, this actuator can be operable to be adjusted to the phase place of described one-tenth ring drive unit before the phase place of described needle actuating device.
11. chain stitching cell driving device according to claim 10, this drive unit also comprises:
Control device, this control device can be operable to control described needle actuating device, one-tenth ring drive unit and phase adjusting apparatus, with the flower type when beginning with the phase advance of described one-tenth ring drive unit to than the phase place of described needle actuating device part cycle in advance.
12. chain stitching cell driving device according to claim 10, this drive unit also comprises:
Control device, this control device can be operable to control described needle actuating device, one-tenth ring drive unit and phase adjusting apparatus, with the flower type when beginning with the phase advance of described one-tenth ring drive unit to than the phase place of described needle actuating device part cycle in advance, and make described needle actuating device afterwards and become the ring drive unit to advance to homophase.
13. chain stitching cell driving device according to claim 10, this drive unit also comprises:
Control device, this control device can be operable to control described needle actuating device, one-tenth ring drive unit and phase adjusting apparatus, with the flower type when beginning with the phase advance of described one-tenth ring drive unit to than the phase place of described needle actuating device part cycle in advance, and described pin is not picked up described one-tenth ring wire loop, and make described needle actuating device afterwards and become the ring drive unit to advance to homophase, and pick up the needlework ring by described one-tenth ring.
14. the method for a quiited products, this method comprises:
Product database is provided, and this database can be visited by control device, and comprises the parameter that limits each product in a plurality of quiited products;
Control multi-needle quilter according to the parameter that limits a product in a plurality of products, with the corresponding product of quilting; And
The control of described quilting machines comprises: read one or more parameters for the treatment of quiited products, and draw the one or more quilting processing steps that will carry out from the parameter that is read, with this product of quilting.
15. method according to claim 14, wherein:
Parameter is selected from and comprises that colored type, material are formed and the parameter group of product size; And
Described quilting processing step comprises: one or more tailor-tacking stitching sequences, line are deviate from amount, are scraped periodic path, the best line of line cut-out is located and stablize the row requirement
16. method according to claim 15, wherein:
Selected parameter is a product size; And
Described quilting processing step comprises the requirement of stable row.
17. method according to claim 15, wherein:
Selected parameter is that material is formed; And
Described quilting processing step comprises that the line of the thickness that is applicable to the material that constitutes product deviates from amount.
18. method according to claim 15, wherein:
Selected parameter is that material is formed; And
Described quilting processing step comprises the periodic path that scrapes of the thickness that is applicable to the material that constitutes product.
19. method according to claim 15, wherein:
Selected parameter is that material is formed; And
Described quilting processing step comprises the line location of the cut-out of the thickness that is applicable to the material that constitutes product.
20. method according to claim 15, wherein:
Selected parameter is a quilting flower type; And
Described quilting processing step comprises the tailor-tacking stitching sequence that is applicable to described colored type.
21. a change supplies to the method for the material supply of quilting machines, this quilting machines carries out quilting to the material of being supplied with and enter from the bottom in quilting machines the place ahead the braided fabric of quilting machines by the supply volume of the operating position that is supported on quilting machines the place ahead, and this method comprises:
Be provided for supporting the supply volume and roll up at least one support that parallel replacement is rolled up with described supply, the braided fabric of material extends to the front lower of quilting machines from described supply volume;
Move described support and change the position so that described supply volume rises to material;
To join on the braided fabric of described material from the leading edge of the material of described replacement volume, the braided fabric that allows described material simultaneously cuts off and described supply volume removes from described support from described supply volume; And
Described operating position is arrived in described replacement migration volume.
22. method according to claim 21, one or more during this method is further comprising the steps of:
The braided fabric of described material is extended to the gantry platform below in quilting machines the place ahead from described supply volume;
The described support of pivot on framework is to promote described volume;
Provide the mounting blocks of one or more pairs of troughs of belt, with the one or both in described supply volume of described support upper support or described replacement volume;
Described replacement volume is supported on the allocation position adjacent with described support, to be transferred to described support;
After described replacement volume has been installed on the described support, promote described support, so that described volume is risen to bonding station;
Use fluid cylinder to promote described support;
To be clamped in bonding station from the material braided fabric of supply volume;
Will be before engaging described material from the material braided fabric excision of supply volume;
Before engaging described material, described supply volume is removed from described support;
Provide monolock formula chain stitching mechanism to engage described material;
Described replacement volume is placed on the carriage, is in described supply and rolls up the position that is supported on the carriage, move described carriage then, so that described operating position is arrived in described replacement winding;
As the possibility that described material braided fabric is bonded together or except described material braided fabric is bonded together, short length material is joined on the material braided fabric of rolling up from supply, supply in the quilting machines with one or several cloth with material; And
Before the material braided fabric of cutting, the leading edge of alternate material is joined on the described material braided fabric from supply volume.
23. method according to claim 22, this method also comprises:
The described support of pivot on framework is to promote described volume;
Provide the mounting blocks of one or more pairs of troughs of belt, with the one or both in described supply volume of described support upper support or described replacement volume;
Described replacement volume is supported on the allocation position adjacent with described support, to be transferred to described support;
After described replacement volume has been installed on the described support, promote described support, so that described volume is risen to bonding station;
Use fluid cylinder to promote described support;
To be clamped in bonding station from the material braided fabric of supply volume;
Will be before engaging described material from the material braided fabric cutting of supply volume;
Before engaging described material, described supply volume is removed from described support;
Provide monolock formula chain stitching mechanism to engage described material; And
Described replacement volume is placed on the carriage, is in the position of the described supply volume of carriage upper support, move described carriage then, so that described operating position is arrived in described replacement winding.
24. an equipment, this equipment comprises the device that is used for realizing each described method of claim 21 to 23.
25. a method that is used for the compound colored type of quilting, this method comprises:
A plurality of continuous colored type elements of sewing, a plurality of discontinuous colored type elements of synchronously sewing simultaneously.
26. method according to claim 25, wherein:
Described sewing spends the type element to comprise that the sewing head on first bridge at least two bridges that can independently move of use sews continuously; And
The discontinuous colored type element of described sewing comprises that the sewing head on second bridge that uses in described at least two bridges that can independently move sews.
27. method according to claim 25, wherein:
Described sewing spends the type element to comprise by sew each continuous series stitching in a plurality of continuous series stitchings of a sewing head in a plurality of sewing heads on first bridge of at least two bridges that can independently move continuously; And
The discontinuous colored type element of described sewing comprises by sew each flower type element in a plurality of colored type element in a plurality of sequences of a sewing head in a plurality of sewing heads on second bridge of described two bridges that can independently move at least; The sewing mode of each flower type element is: at first at the continuous serial stitching of starting position sewing, the tailor-tacking stitching of then sewing is followed trim lines, then jumps to the starting position of the next one flower type element of this series.
28. method according to claim 25, wherein:
Described sewing is spent the type element to comprise by the sewing head on the laterally mobile bridge that is positioned at fixing lengthwise position continuously and is sewed on the material braided fabric that advances continuously.
29. a quilting method, this method comprises:
The optional cycle that can select for the user of quilting machines is provided; Relate to the relative motion between material and the sewing head, so that when choosing this optional cycle, reduce or eliminate the line tail and when not choosing this optional cycle, provide high speed operation and need not to eliminate the line tail.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71542305P | 2005-09-09 | 2005-09-09 | |
| US60/715,423 | 2005-09-09 | ||
| US60/762,471 | 2006-01-26 | ||
| US60/763,172 | 2006-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101583750A true CN101583750A (en) | 2009-11-18 |
Family
ID=41365195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800415732A Pending CN101583750A (en) | 2005-09-09 | 2006-09-08 | Horizontal-multi-needle quilting machine and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101583750A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106149208A (en) * | 2015-04-22 | 2016-11-23 | 天津宝盈电脑机械有限公司 | Double lead-screw Synchronous Transmission zero-waiting full-automatic single-head sewing machine |
| CN108026682A (en) * | 2015-04-27 | 2018-05-11 | 百福工业系统与机械有限责任公司 | Spininess chain stitch sewing machine |
| CN110735233A (en) * | 2018-07-20 | 2020-01-31 | 天津宝盈电脑机械有限公司 | sleeping bag straight line quilter |
-
2006
- 2006-09-08 CN CNA2006800415732A patent/CN101583750A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106149208A (en) * | 2015-04-22 | 2016-11-23 | 天津宝盈电脑机械有限公司 | Double lead-screw Synchronous Transmission zero-waiting full-automatic single-head sewing machine |
| CN108026682A (en) * | 2015-04-27 | 2018-05-11 | 百福工业系统与机械有限责任公司 | Spininess chain stitch sewing machine |
| CN110735233A (en) * | 2018-07-20 | 2020-01-31 | 天津宝盈电脑机械有限公司 | sleeping bag straight line quilter |
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Application publication date: 20091118 |