EP2336413A2 - Multi-needle-head embroidery machine, multi-needle-head for this machine, thread cutting element and thread cutter for this machine - Google Patents
Multi-needle-head embroidery machine, multi-needle-head for this machine, thread cutting element and thread cutter for this machine Download PDFInfo
- Publication number
- EP2336413A2 EP2336413A2 EP10195847A EP10195847A EP2336413A2 EP 2336413 A2 EP2336413 A2 EP 2336413A2 EP 10195847 A EP10195847 A EP 10195847A EP 10195847 A EP10195847 A EP 10195847A EP 2336413 A2 EP2336413 A2 EP 2336413A2
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- EP
- European Patent Office
- Prior art keywords
- needle
- thread
- thread cutter
- embroidery
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C3/00—General types of embroidering machines
- D05C3/02—General types of embroidering machines with vertical needles
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/06—Devices for severing the needle or lower thread and for disposing of the severed thread end ; Catching or wiping devices for the severed thread
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/20—Arrangements for cutting the needle or lower threads
Definitions
- the present invention relates to Mehmadelkopf embroidery machines according to the preamble of claim 1 with one or more multi-needle heads, in particular their Mehmadelköpfe according to claim 11, and a thread cutter element for such Mehmadelköpfe according to claim 12, as well as a thread cutter for Mehmadelkopf embroidery machines according to claim 17.
- a first type of classification is based on the number of threads involved in the embroidery process: on some machines, embroidery is only produced by the needle thread, other machines require a second thread in addition to the needle thread, namely , Spine, spool, shuttle or Bobinenfaden which is swallowed in the stitch formation with the needle thread.
- a second type of classification is based on the number of simultaneously working needles:
- One-needle embroidery machines like sewing machines, have a single point of embroidery with a single needle.
- the one-needle embroidery machines include the Singer, Eagle and Crank embroidery machines.
- Multi-needle or rapport embroidery machines are shuttle embroidery machines and hand embroidery machines, which have a multiplicity of embroidery locations, each with a needle.
- Mehmadelkopf embroidery machines work like the above-mentioned single-needle or multi-needle embroidery machines with a two-thread system. It is linked to a bobbin present on a bobbin with a virtually endless needle thread by the needle thread is performed as in a sewing machine around the bobbin.
- Multi-needle-head embroidery machines can basically have a single or a plurality of embroidery heads. In general, over a gate-like structure 3, 4, 6, 10 or 12 multi-needle heads are mounted, which are set by a common drive shaft in motion.
- the embroidery floor can be moved one stitch length to create an identical stitch at each embroidery point.
- the embroidery bottom can be clamped individually for each head in an embroidery frame, or a repeat is embroidered on a larger embroidery base.
- These individual embroidery frames are fastened by means of screw connections to the gate-like structure whose movements are controlled in the usually horizontal gate plane by a small automaton.
- the embroidery field is approximately 240 x 200 mm.
- the stitch forming members and the stitching process are identical to those of the Singer embroidery machine having only a head with a needle.
- a difference to these is that a plurality of needles per head (for different needle threads) and on each needle still a presser is provided which holds the embroidery bottom during the stitch formation.
- the fabric presser is always raised when the embroidery bottom continues to move.
- the individual embroidery heads are usually equipped with a thread monitor system, which automatically shuts off the machine when the thread breaks.
- generic embroidery machines are equipped with at least one multi-needle head.
- the multi-needle head having a plurality of needle locations is disposed on a carriage, and this carriage is movable along a carrier.
- a stick drive for a single needle point on the support is arranged.
- Stich avoirsorgane, such as needle plunger for the needle and thread equalization unit formed.
- Each needle point is movable with the carriage relative to the carrier and the stick drive in an active position in engagement with the stick drive and a passive position out of engagement with the stick drive.
- the present invention relates to multi-needle head embroidery machines in which each embroidery head is provided with a plurality of pin locations on a carriage.
- each embroidery head usually includes each needle point a thread monitor (optional), a thread guide (in the literature also referred to as thread take-up lever), thread guide devices, including stab-compensating thread tensioning parts for the upper thread, and arranged on a needle tappet needle which guided up and down movable and from a Drive unit is driven.
- the aforementioned stitch-forming components are also referred to in the present description as an upper thread unit.
- the embroidery heads of the Mehmadelkopf embroidery machines are arranged on a carriage, which is mounted laterally displaceable on a support.
- each embroidery head is a Needle plate in which a needle hole is provided for the needle and which defines the embroidery point locally.
- Each needle of an embroidery head is laterally displaceable with the carriage to the aforementioned stitch plate.
- the embroidery base stretched in the stenter frame is located on the throat plate. This is displaceable with the clamping frame in the x and y direction.
- the needle which is located at the embroidery site, penetrates through the embroidery material and into the needle hole during the movement of the needle.
- the respective upper thread is guided through the embroidery material and formed by a corresponding needle movement, a loop on the back of the embroidery material. Through this loop, the entire lower thread is then performed to achieve an entanglement of upper thread and lower thread.
- the upper thread When retracting the needle, the upper thread is tightened and formed in the embroidery a so-called stitch.
- embroidering only one of the needle points is active, namely the one which is located at the embroidery point.
- the embroidery heads of the mentioned multi-head embroidery machines are arranged in a known manner in a specific Rapportlie along a support arm or carrier.
- a characteristic of these multi-needle head embroidery machines is therefore that there are a plurality of needle locations per embroidery head, but the needle locations can only be actuated individually. This has the advantage that a plurality of needle locations of one embroidery head can be equipped with a different thread each and therefore color embroidery can be carried out by successively placing in each case another needle of the embroidery point which is provided with another thread.
- the needle locations of a needle group i. all needles, needle plungers and their associated thread levers of a head are known to be laterally displaceable, i. the embroidery head is designed as a carriage, which is displaceable along a carrier.
- a drive for a single needle point is arranged stationary per embroidery head. For the purpose of changing the thread a selected needle point is brought by moving the needle group relative to the carrier in front of the drive and into engagement with the drive members.
- a conventional Mehmadelkopf embroidery machine is exemplary in the FIGS. 1 and 2 shown.
- This comprises a frame 201, an embroidery table 203 arranged on the frame 201 and a plurality of embroidery heads 205 arranged in series above the embroidery table 203 FIG. 2 it can be seen, each embroidery head 205 has several, each with a needle 215th equipped needle points.
- Each needle point comprises stationary thread guide elements 207 or thread brakes, an up and down movable thread receiving lever resp. Thread guide 209, Fadenumlenkmaschine 211 and one on a needle cancer 213 with needle tappet 214 arranged needle 215.
- each needle plunger 214 is equipped with a presser 217.
- the embroidery frames 219 can be inserted into a large clamping frame 221 which extends across the width of the embroidery table 203.
- the clamping frame 221 is displaceable in a known manner in the x and y directions.
- the embroidery heads are arranged on a linear guide 223 and displaceable along it in the x-direction.
- a multi-head sewing machine having a plurality of sewing heads.
- Each sewing head has a plurality of needle locations.
- a thread holding member is provided at each needle location above the needle crab.
- This yarn holding member includes a guide portion, a cutting edge and a holding portion. The operator manually guides the thread from behind behind the guide section and to the cutting edge. The thread is cut and simultaneously held by the holding section.
- the cutting edge is located at such a distance from the embroidery bottom that the stitching end of the thread is sufficiently long to prevent it from being threaded out of the eye of the needle when sewing (page 3, section 36).
- the thread trimming and holding device described is only suitable for manual operation. In addition to the impossibility of automatic operation is a further disadvantage that when embroidering each a longer piece of thread remains on the back of the processed fabric. This requires a subsequent manual cleaning of the textile.
- US 5,913,276 describes a multi-head sewing machine with a thread cutting mechanism for cutting the needle thread and the bobbin thread.
- a movable blade is pivotally mounted on the underside of the throat plate. The blade is movable between a standby position and a twisted position.
- a fixed blade is disposed on the underside of the throat plate so as to face a front portion of the movable blade.
- the movable blade in cooperation with the fixed blade, cuts both the needle thread and the bobbin thread.
- the cutting operation is accomplished by an electric motor that drives a thread trimming lever.
- the described thread cutting mechanism is not on the sewing head, but arranged on the lower thread unit. According to the US 5,913,276 There is no device to hold or clamp the thread ends.
- the CH 683 701 is a cutting and clamping device for the front yarn, ie the needle thread of a Schiffli embroidery machine with a variety of embroidery sites and one needle per embroidery point known.
- Each embroidery point is assigned an actively operable cutting and clamping element.
- the cutting and clamping elements are arranged on a common mounting rail and actuated by a common drive rod. They each consist of a fixed knife, on which a movable knife is arranged axially displaceable.
- a clamping spring is attached to the stationary knife and forms with respect to the movable knife a nip defined by the spring end on the one hand and by a corresponding front of the movable knife on the other hand.
- the clamping spring also has the task of avoiding an inadmissible clearance between the movable and the fixed knife by the movable blade is pressed against the fixed blade through them. This ensures that the scissors cutting effect is maintained.
- a thread cutter is formed.
- Each thread cutter comprises a clamping device for the needle thread.
- Thread cutter drive for driving a respective thread cutter provided.
- Such a Mehmadelkopf embroidery machine has expediently at each embroidery point in addition to the embroidery drive a cutting drive for the thread trimmer.
- the thread cutter is movable together with the stitch formation organs of the needle point into an active position and a passive position out of engagement with the thread cutter drive.
- embroidery organs and thread trimmer needle point either connected to the drives, namely in the active position of the needle point, or decoupled from these, namely in the passive position of the needle point.
- the thread cutter on a support resp. Guiding arranged, which forms a thread cutter element together with the thread cutter.
- a number of needle cutter corresponding number of thread cutter elements is formed, which are individually secured to the support structure.
- Each of these thread cutter elements has a single thread cutter with clamping device. Due to the element construction individual thread cutter elements can be easily replaced. In addition, these elements are independent of the number of needle points of a multi-needle head easy to use in an appropriate number.
- a preferred multi-needle head embroidery machine has a guide rail for the thread cutter elements on which they are slidably mounted.
- the guide rail holds the thread cutter elements in a position spaced from the embroidery bottom. It is expediently formed on both sides of an active or coupling part. In each case only a single thread cutter element of an embroidery head is in the active position. This is the case when it is located on the coupling part.
- the coupling part is preferably movable together with the thread cutter element arranged thereon towards the embroidery bottom.
- the multi-needle embroidery machine can be advantageously equipped with an actuator for the operation of the thread trimmer in each multi-needle head to a positioning of the in active position (ie on the coupling part) located Thread cutter element near embroidery floor or in alignment with the guide rail.
- the thread trimmers can be selectively controlled. That is, the needle threads can be selectively cut only with a selection of the heads.
- the actuator together with a gear, such as a slotted guide or a coupling gear, provide for the cutting and clamping movement of the thread cutter.
- a multi-needle heads common positioning provided. By rotating the positioning shaft, the thread cutter can be precisely positioned at a selectable distance from the embroidery bottom. As drive for the positioning shaft, a short-stroke compressed air cylinder can be used.
- the invention also relates to a multi-needle head for such a Mehmadelkopf embroidery machine.
- a multi-needle head for such a Mehmadelkopf embroidery machine.
- such a multi-needle head is formed with a plurality of pin locations on a carriage.
- An embroidery drive for a needle point belongs to the multi-needle head. This is intended for stationary placement on a support structure of the embroidery machine and may e.g. be driven by a wave common to all minds.
- a needle tappet with needle and a thread balancing unit, yarn brake (thread roller) and the like are formed.
- the carriage can be arranged on a support structure provided therefor an embroidery machine, and is guided there by the support structure and movable relative to the support structure and the embroidery drive. Therefore, one of the needle positions can be brought into an active position in engagement with the embroidery drive or in a passive position out of engagement with the embroidery drive with the carriage.
- a thread cutter drive for actuating a thread cutter is present in such a head, which drive is provided for stationary arrangement on the support structure of the embroidery machine.
- a thread cutter with a clamping function for the thread is formed, which is movable together with the stitch forming organs of the needle point in an active position, namely in engagement with the thread cutter drive, and a passive position, namely out of engagement with the thread cutter drive.
- each thread cutter for such Mehmadelkopf embroidery machines is formed in a separate thread cutter element.
- a support is equipped with a single thread cutter. This support is a first guide trained. This serves to guide the thread cutter element in a guide rail of a multi-needle head embroidery machine. This allows the shifting of the thread cutter elements along the guide rail. As a result, any thread cutter can be brought into engagement with the thread cutter drive.
- the thread cutter element is in the active position with a preferably lowerable coupling part into engagement.
- the coupling part has a guide track corresponding to the guide rail and is aligned in the rest position with the guide rail, so that in this position, the multi-needle head on the support rail is laterally displaceable.
- a thread cutter element may conveniently be formed on the support a second guide to guide at least one movable part of the thread cutter.
- the formation of this second guide on the support allows a desired material pairing between the parts rubbing against each other, in particular plastic for the support and spring steel for the movable blade, or steel for the movable clamping part.
- the thread cutter preferably has, on a movable part, an engagement means, for example a pin, on which engagement means can be engaged in an actuator or a cutting drive.
- the thread trimmer has two movable parts, namely a movable knife and a movable clamping part. The two moving parts are expediently immovable against each other, so that the attacking agent acts on both similar.
- the clamping function and the cutting function are realized by two specially designed parts. None of these parts has a clamping and cutting function.
- the movable clamping part and the movable knife are separate parts. This makes it possible to inexpensively round the edges of this clamping part, without jeopardizing the sharp edge of the cutting edge. This has the advantage of being able to cut and hold a thread of a needle point safely and neatly.
- first knife is stationary on a support, in particular the support. It is not advantageous to move both knives, if that would be possible. The same applies to the clamping parts.
- the first clamping region is therefore advantageously formed on a stationary part of the thread cutter.
- the stationary parts could be arranged between the movable or the stationary parts and the moving parts could be alternately stacked (eg away from the embroidery base, second knife, first knife, second clamping member, first clamping member), it is preferred that the second movable blades and the second movable clamping part between the stationary first blade and the stationary first clamping part are arranged. This allows to bring a suitable bias on the two shearing edges and with this bias also equal to securely clamp the thread. This arrangement even causes the bias to be higher for thicker filaments than for thinner ones.
- the thread cutter could be designed such that the second clamping region is formed on the second, movable knife and therefore the second clamping part is formed by the second knife.
- the stationary first knife may be disposed between the second movable clamp member and the second movable knife, and the stationary first knife may have a first shear edge on a cutting side, and a first clamp portion on a clamp side opposite to this cutting side exhibit.
- the movable second knife and the movable second thread clamping member preferably each have a substantially L-shaped configuration (when the knife and the thread clamping member together form a single part), each having a base extending in the direction of movement and an angled functional leg.
- the second shearing edge is formed on an inner side of the functional limb, which inner side has an acute shearing angle to the first shearing edge.
- the second clamping region is formed on an outer side of the functional leg which is assigned to the first clamping part.
- the second knife is preferably made of a spring steel and biased against the first knife. Due to the position between the first knife and the clamping parts can this bias can be achieved by a curvature, ie by a curvature of the base leg along its longitudinal direction or the direction of movement. The curvature exerts a bias (pressure) on the clamping parts and the first Messeraus.
- the functional leg is bent out of the plane of the base leg. This bend can also be seen as a rotation of the cutting edge and has the effect that the cutting edge with increasing distance from the base leg has a greater distance from the plane of the base leg. This provides a safe cutting action since laterally cutting portions of the shearing edge can not first lift cutting portions of the shearing edge. As a result, the spring force is always guided to the intersection and contact point of the two shearing edges.
- the distance between the first clamping area and the second clamping area is advantageously smaller than the distance between the first shearing edge and the second shearing edge.
- FIGS. 5 and 6 is a well-known from Schifflistick thread trimmer. With appropriate adaptation of this thread cutter could also be arranged at each needle point in the inventive Mehmadelkopf embroidery machine.
- FIGS. 3 and 4 is the general structure of an inventive multi-needle head 11 can be seen.
- the multi-needle head 11 is that part of a stitch formation unit which is arranged on the side of the embroidery with respect to the embroidery base.
- multi-needle heads 11 therefore, several, according to the present embodiment, six different needle threads can be stitched in a temporal sequence by being knotted behind the embroidery bottom with the same, namely the respective embroidery site associated back thread.
- This preferred multi-needle head 11 comprises at each needle location 13 (in FIG. 4 numbered 1 to 6) a thread feeder 15, a thread brake 17, usually in the form of a thread roller, a thread monitor 19, a large thread guide 21, a small thread guide 23, a needle 25 and a thread cutter 27 with thread clamping function.
- Six such needle points 13 are formed on the head 11. Each is constructed identically. All six needle points 13 can be compared to a stationary needle resp. Embroidery drive and relative to a cutting drive along at least one guide rail 28 are moved so that in each case only the organs of a single needle point 13 are in engagement with the drives (in FIG. 4 the needle point 3). The organs of the other needle points 13 are fixed in a rest position. By moving the needle points relative to the drives, each of the pin locations can be brought into engagement with their drives.
- each thread point 13 is associated with an individual thread cutter 27 with clamping function.
- These, in this case six thread cutter 27 are not formed as a single part, so that they should always be lowered and raised together, which would also be possible, but each thread cutter 27 is part of an individual thread cutter element 29.
- These thread cutter elements 29 are lined up on a guide rail 31 next to each other ( Fig. 4 ).
- This guide rail 31, which is arranged below the needle tappets, defines the position of the thread cutter elements 29 with respect to the embroidery base and the head 11.
- the guide rail 31 also has the function of parking those thread trimmers which are not in operation.
- a pin 37 is formed at the rear end of the thread cutter, which is guided in a specially provided groove 39 of the guide rail 31.
- the guide rail 31 is made in two parts, with a first part extending to the left and the other part to the right of the embroidery point.
- the length of the guide rail parts is at least so large that they can each receive (n-1) thread cutter elements 29, where n corresponds to the number of pin locations.
- the mutually oriented ends of the guide rail parts are spaced apart by the width of a thread cutter element 29.
- that thread trimmer element 29, which is located at the embroidery point released from the guide rail 31.
- the guide rail 31 holds the pin 37 of the thread cutter 27 in a closed position by means of a correspondingly formed guide track 39.
- the thread ends can not be solved by the vibrations of the machine from the clamping devices, while other pinpoints work. It is of course possible to form the above-mentioned guide track independently of guide rail 31.
- the rigid guide rail 31 is supplemented by a coupling part 33.
- the coupling part 33 is movable back and forth to the embroidery bottom (stitch plate 35). With him the thread cutter element 29 is moved towards the embroidery floor and away from the embroidery floor.
- the thread cutter 27 could be formed as the thread cutter shown here with clamping function of a Schifflistickmaschine.
- This bar 271 is movable with respect to the embroidery floor. Since there is a rapport of embroidery on a boat embroidery machine, it makes sense to operate all the thread trimmers together. The operation is carried out by moving a cutting-clamping tongue 273. This is guided between a stationary knife 275 and a clamping spring 277 and relative to the knife 275 performs a shearing motion.
- FIGS. 7a to 7g show a preferred embodiment of a thread cutter 27 in different positions of the knife and the clamping elements to each other.
- FIGS. 7a and 7b is the thread cutter 27 in the open position.
- a first, preferably rigid and stationary knife 41 a movable second knife 43 is arranged. This is formed from bent in the axial direction spring material. Above this is a movable second clamping element 45.
- a first, stationary clamping element 47 is present.
- the first clamping element 47 and the first knife 41 are fixedly mounted on a support 49 with two screws each.
- the movable second knife 43 and the movable second clamping element 45 are arranged.
- the first clamping element 47 is preferably designed as a spring element, so that different thread strengths do not require a change in setting of the thread cutter 27. Rather, the pressure on the knives increases with increasing thread size.
- the guide for the two moving parts of the thread cutter 27 is preferably formed on the support 49, for example as a groove. In this groove on the underside of the support 49, the moving parts 43,45 can be guided laterally.
- a common engagement means, the pin 37, serves to operate the second knife 43 and second clamping element 45. While it is not particularly important how the contours of the fixed parts behind the shear edge 51 (FIG. Fig. 7g ) and the clamping edge 57 are formed (except that the thread should not catch there), the moving parts must be angled at the front end.
- first leg which extends in the direction of movement and is guided in the support 49
- second leg with a second shearing edge 53 and the second clamping edge 55, which extends transversely to the direction of movement.
- the two legs advantageously form an obtuse angle to each other, so that the shearing edges 51 and 53 occupy an acute angle to each other and a right or obtuse angle to the direction of movement. This favors the optimal shearing of the thread.
- the second clamping edge 55 runs parallel to the second shearing edge 53 and in the direction of movement during cutting, in front of the shearing edge, so that the clamping always takes place before the cut.
- the second clamping edge 55 and the second shearing edge 53 are thus arranged offset from each other by a small distance.
- the support 49 has the width of the needle point. At the support 49 all parts of the thread cutter 27 are attached. Support 49 and thread cutter 27 together form the thread cutter element 29.
- a first guide 50 is provided to guide it to the guide rail 31 movable. Thanks to this guide 50, the support 49 can be stably guided in the guide rail 31 and coupled to the coupling part 33.
- FIGS. 7e and 7f show the thread cutter in a cutting position.
- the front end of the thread cutter 27 is in FIG. 7g shown in detail with pinched needle thread 10.
- the thread 10 is already clamped in this position between the first clamping member 47 and the second clamping member 45.
- the thread 10 lies in the acute-angled opening between the If the two moving parts of the thread cutter 27 are moved further back, the second knife 43 and the second clamping part 45 pass further between the stationary parts, the first knife 41 and the first clamping part 47 already clamped and held in the embroidery on the other hand, this is stretched and this can be cut by the shear edges 51,53.
- the thread cutter 27 is closed.
- the needle thread 10 is cut at this point of the needle and clamped between the clamping parts.
- a needle change can take place by laterally moving the needle points on the carrier.
- the clamped thread remains with the associated needle and can be re-embroidered at any time. Due to the fact that the thread cut takes place in the immediate vicinity of the embroidery bottom, no thread remnants remain after the embroidering on the upper side of the embroidery base, which would have to be subsequently cleaned.
- the thread length between the thread clamp and embroidery bottom is less than 10 mm, preferably less than 5 mm, and particularly preferably 3 mm or less.
- FIG. 8 the needle point is shown at the embroidery point.
- the needle 25 with needle thread 10 the fabric presser 61, and on the coupling part 33, the thread cutter element 29 is shown.
- the thread cutter 27 is shown in the open position. He has the needle thread 10 trapped in the U-shaped recess between the shear edges 51, 53 and the clamping edges 55, 57 and the first legs of the moving parts 43,45th
- FIG. 9a is the coupling part 33 in the raised position. This is best visible at the position of the bolt 63 in the link fixing 65 on the pivot arm 67 of the thread cutter drive. In FIG. 9a this bolt 63 sits at the top in the slide guide 65.
- the bolt 63 is formed on a three-arm lever 69. His first arm 69.1 is guided by the bolt 63 in the Kulissenftihrung 65. Its second arm 69.2 is articulated to an actuator, a pneumatic cylinder piston rod 71. His third arm 69.3 is in engagement with the pin 37 of the thread cutter 27.
- the three-arm lever 69 is on Coupling member 33 rotatably mounted about the axis 73. Since the slotted guide 65 extends in a first region in a direction whose extension passes approximately through the center of the pivot point 73 of the three-armed lever 69, upon activation of the air cylinder 75, the three-arm lever 69 is not pivoted. The thread cutter 27 therefore remains closed. However, the coupling part 33 is lowered by the piston rod 71 in the position according to FIG. 9b , The thread cutter 27 is thus approximated to the embroidery floor in the closed position.
- the support 49 of the thread cutter element 29 is provided with a rear guide web 48, so that even in the lowered active position of the coupling part 33, the remaining thread cutter elements can not move.
- the activated thread cutter element 29 remains within the row of thread cutter elements, and adjacent thread cutter elements 29 butt against each other. Characterized the distance between two spaced apart by the activated thread cutter element thread cutter elements is kept constant, so that during the up and down movement, a collision of the activated element is avoided with its adjacent elements.
- each head has its own cylinder 75 with a single controllable valve, a selection of the heads to be cut can be made very easily.
- the lever 67 in which the sliding guide 65 is formed, and on which the compressed air cylinder 75 is fixed, pivoted about a shaft 77.
- the coupling part 33 and the active thread cutter 27 is further lowered together with its actuators to just below the surface of the embroidery base.
- the guide slot 63 forces a pivoting of the three-arm lever 69 and thus the operation of the thread cutter 27 via the pin 37, which is in engagement with the third arm 69.3.
- the lever 65 is raised back to its original position.
- the coupling member 33 Upon further retraction of the piston plunger 71, the coupling member 33 is raised with the thread cutter element 29 to the position according to Fig. 9a respectively. Fig. 3 , The shaft 77 is then rotated back again. The thread end is now clamped in the thread cutter element 29 in the vicinity of the needle 25 before. In the raised position of the coupling part 33, the thread cutter elements 29 are again freely displaceable, ie they can be pushed by the coupling part 33 on the guide rail 31 and of the guide rail 31 on the coupling part 33.
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Abstract
Description
Die vorliegende Erfindung betrifft Mehmadelkopf-Stickmaschinen gemäss Oberbegriff von Anspruch 1 mit einem oder mehreren Mehrnadelköpfen, insbesondere deren Mehmadelköpfe gemäss Anspruch 11, und ein Fadenschneider-Element für solche Mehmadelköpfe gemäss Anspruch 12, wie auch einen Fadenschneider für Mehmadelkopf-Stickmaschinen gemäss Anspruch 17.The present invention relates to Mehmadelkopf embroidery machines according to the preamble of claim 1 with one or more multi-needle heads, in particular their Mehmadelköpfe according to
Gemäss dem Buch "
Eine zweite Einteilungsart orientiert sich an der Anzahl der gleichzeitig arbeitenden Nadeln: Einnadlige Stickmachinen besitzen in der Art von Nähmaschinen eine einzige Stickstelle mit einer einzigen Nadel. Zu den einnadligen Stickmaschinen zählen die Singer-, Adler- und die Kurbelstickmaschine. Mehrnadlige oder Rapportstickmaschinen sind Schiffchenstickmaschinen und die Handstickmaschinen, welche eine Vielzahl von Stickstellen mit jeweils einer Nadel besitzen.A second type of classification is based on the number of simultaneously working needles: One-needle embroidery machines, like sewing machines, have a single point of embroidery with a single needle. The one-needle embroidery machines include the Singer, Eagle and Crank embroidery machines. Multi-needle or rapport embroidery machines are shuttle embroidery machines and hand embroidery machines, which have a multiplicity of embroidery locations, each with a needle.
Neben diesen beiden Gruppen gibt es noch die Mehrnadelkopf-Stickmaschine. Mehmadelkopf-Stickmaschinen arbeiten wie die oben angeführten einnadligen oder mehrnadligen Stickmaschinen mit einem Zweifadensystem. Es wird ein auf einer Spule vorliegender Unterfaden mit einem praktisch endlosen Nadelfaden verknüpft, indem der Nadelfaden wie bei einer Nähmaschine um die Spule geführt wird. MehrnadelkopfStickmaschinen können grundsätzlich einen einzelnen oder eine Mehrzahl von Stickköpfen aufweisen. In der Regel sind über einem gatterähnlichen Gebilde 3, 4, 6, 10 oder 12 Mehrnadelköpfe montiert, die durch eine gemeinsame Antriebswelle in Bewegung gesetzt werden. Der dadurch erreichte Synchronlauf der Köpfe ist notwendig, damit alle Nadeln gleichzeitig einstechen oder aus dem Stickboden herausgezogen werden und daher der Stickboden bei herausgezogenen Nadeln um eine Stichlänge verschoben werden kann, um an jeder Stickstelle einen identischen Stich zu erzeugen. Dabei kann der Stickboden für jeden Kopf einzeln in einem Stickrahmen eingespannt sein oder es wird auf einem grösseren Stickboden ein Rapport gestickt. Diese einzelnen Stickrahmen werden mittels Schraubverbindungen an dem gatterähnlichen Gebilde befestigt, dessen Bewegungen in der meist horizontalen Gatterebene von einem kleinen Automaten gesteuert werden. Bei einem solchen Stickautomaten mit 6 Köpfen beträgt das Stickfeld ca. 240 x 200 mm. Die Stichbildungsorgane und der Stichbildungsprozess sind identisch mit denjenigen der Singer Stickmaschine, die lediglich einen Kopf mit einer Nadel besitzt. Ein Unterschied zu diesen ist, dass eine Mehrzahl von Nadeln pro Kopf (für unterschiedliche Nadelfäden) und an jeder Nadel noch ein Stoffdrücker vorgesehen ist, welcher den Stickboden während der Stichbildung festhält. Der Stoffdrücker wird immer dann angehoben, wenn sich der Stickboden weiter bewegt. Ausserdem sind die einzelnen Stickköpfe in der Regel mit einem Fadenwächtersystem ausgestattet, das die Maschine bei Fadenbruch automatisch abschaltet.In addition to these two groups, there is still the multi-needle head embroidery machine. Mehmadelkopf embroidery machines work like the above-mentioned single-needle or multi-needle embroidery machines with a two-thread system. It is linked to a bobbin present on a bobbin with a virtually endless needle thread by the needle thread is performed as in a sewing machine around the bobbin. Multi-needle-head embroidery machines can basically have a single or a plurality of embroidery heads. In general, over a gate-
In bekannter Art sind gattungsgemässe Stickmaschinen mit wenigstens einem Mehrnadelkopf ausgerüstet. Der eine Mehrzahl von Nadelstellen aufweisende Mehrnadelkopf ist auf einem Schlitten angeordnet, und dieser Schlitten ist entlang eines Trägers beweglich. Für einen solchen Mehrnadelkopf ist ein Stick-Antrieb für eine einzelne Nadelstelle am Träger angeordnet. Es sind an jeder Nadelstelle Stichbildungsorgane, wie Nadelstössel für die Nadel und Fadenausgleichseinheit ausgebildet. Jede Nadelstelle ist mit dem Schlitten gegenüber dem Träger und dem Stick-Antrieb in eine Aktiv-Stellung in Eingriff mit dem Stick-Antrieb und eine Passiv-Stellung ausser Eingriff mit dem Stick-Antrieb bewegbar.In a known manner generic embroidery machines are equipped with at least one multi-needle head. The multi-needle head having a plurality of needle locations is disposed on a carriage, and this carriage is movable along a carrier. For such a multi-needle head, a stick drive for a single needle point on the support is arranged. There are at each needle point Stichbildungsorgane, such as needle plunger for the needle and thread equalization unit formed. Each needle point is movable with the carriage relative to the carrier and the stick drive in an active position in engagement with the stick drive and a passive position out of engagement with the stick drive.
Die vorliegende Erfindung bezieht sich auf Mehrnadelkopf-Stickmaschinen, bei welchen jeder Stickkopf mit einer Mehrzahl von Nadelstellen auf einem Schlitten ausgestattet ist. Dabei umfasst im Regelfall jede Nadelstelle einen Fadenwächter (optional), einen Fadenleiter (in der Literatur auch als Fadenaufnahmehebel bezeichnet), Fadenführungseinrichtungen, einschliesslich stichausgleichender Fadenspannungsteile für den Oberfaden, und eine an einem Nadelstössel angeordnete Nadel, welche auf und ab bewegbar geführt und von einer Antriebseinheit angetrieben ist. Die vorerwähnten stichbildenden Komponenten werden in der vorliegenden Beschreibung gesamthaft auch als Oberfadeneinheit bezeichnet. Die Stickköpfe der Mehmadelkopf-Stickmaschinen sind auf einem Schlitten angeordnet, der lateral verschiebbar auf einem Träger gelagert ist. Unterhalb jedes Stickkopfes befindet sich eine Stichplatte, in welcher ein Nadelloch für die Nadel vorgesehen ist und welche die Stickstelle örtlich definiert. Jede Nadel eines Stickkopfes ist mit dem Schlitten lateral zur erwähnten Stichplatte verschiebbar. Auf der Stichplatte liegt im Betrieb der im Spannrahmen aufgespannte Stickboden. Dieser ist mit dem Spannrahmen in x- und y-Richtung verschiebbar. Jene Nadel, welche sich an der Stickstelle befindet, dringt bei der Nadelbewegung durch das Stickgut und in das Nadelloch. Dabei wird der jeweilige Oberfaden durch das Stickgut geführt und durch eine entsprechende Nadelbewegung eine Schlaufe auf der Rückseite des Stickguts gebildet. Durch diese Schlaufe wird dann der gesamte Unterfaden geführt, um eine Verschlingung von Oberfaden und Unterfaden zu erreichen. Beim Rückzug der Nadel wird der Oberfaden angezogen und im Stickgut ein sogenannter Stich gebildet. Beim Sticken ist jeweils nur eine der Nadelstellen aktiv, nämlich diejenige welche sich an der Stickstelle befindet. Die Stickköpfe der erwähnten Mehrkopf-Stickmaschinen sind in bekannter Art in einem bestimmten Rapportverhältnis entlang eines Tragarms oder Trägers angeordnet.The present invention relates to multi-needle head embroidery machines in which each embroidery head is provided with a plurality of pin locations on a carriage. In this case, usually includes each needle point a thread monitor (optional), a thread guide (in the literature also referred to as thread take-up lever), thread guide devices, including stab-compensating thread tensioning parts for the upper thread, and arranged on a needle tappet needle which guided up and down movable and from a Drive unit is driven. The aforementioned stitch-forming components are also referred to in the present description as an upper thread unit. The embroidery heads of the Mehmadelkopf embroidery machines are arranged on a carriage, which is mounted laterally displaceable on a support. Below each embroidery head is a Needle plate in which a needle hole is provided for the needle and which defines the embroidery point locally. Each needle of an embroidery head is laterally displaceable with the carriage to the aforementioned stitch plate. During operation, the embroidery base stretched in the stenter frame is located on the throat plate. This is displaceable with the clamping frame in the x and y direction. The needle, which is located at the embroidery site, penetrates through the embroidery material and into the needle hole during the movement of the needle. In this case, the respective upper thread is guided through the embroidery material and formed by a corresponding needle movement, a loop on the back of the embroidery material. Through this loop, the entire lower thread is then performed to achieve an entanglement of upper thread and lower thread. When retracting the needle, the upper thread is tightened and formed in the embroidery a so-called stitch. When embroidering only one of the needle points is active, namely the one which is located at the embroidery point. The embroidery heads of the mentioned multi-head embroidery machines are arranged in a known manner in a specific Rapportverhältnis along a support arm or carrier.
Ein Charakteristikum dieser Mehrnadelkopf-Stickmaschinen ist also, dass pro Stickkopf eine Mehrzahl von Nadelstellen vorhanden ist, welche Nadelstellen jedoch ausschliesslich einzeln betätigbar sind. Dies hat den Vorteil, dass mehrere Nadelstellen eines Stickkopfes mit jeweils einem anderen Faden ausgerüstet sein und daher Buntstickereien ausgeführt werden können, indem nacheinander jeweils eine andere Nadel der Stickstelle, die mit einem anderen Faden versehen ist, in Tätigkeit gesetzt wird.A characteristic of these multi-needle head embroidery machines is therefore that there are a plurality of needle locations per embroidery head, but the needle locations can only be actuated individually. This has the advantage that a plurality of needle locations of one embroidery head can be equipped with a different thread each and therefore color embroidery can be carried out by successively placing in each case another needle of the embroidery point which is provided with another thread.
Die Nadelstellen einer Nadelgruppe, d.h. alle Nadeln, Nadelstössel und die ihnen zugeordneten Fadenhebel eines Kopfes, sind bekannterweise lateral verschiebbar, d.h. der Stickkopf ist als Schlitten ausgebildet, der entlang eines Trägers verschiebbar ist. Ebenso ist am Träger pro Stickkopf ein Antrieb für eine einzelne Nadelstelle ortsfest angeordnet. Zum Zwecke des Fadenwechsels wird eine ausgewählte Nadelstelle durch Verschieben der Nadelgruppe gegenüber dem Träger vor den Antrieb und in Eingriff mit den Antriebsorganen gebracht.The needle locations of a needle group, i. all needles, needle plungers and their associated thread levers of a head are known to be laterally displaceable, i. the embroidery head is designed as a carriage, which is displaceable along a carrier. Likewise, a drive for a single needle point is arranged stationary per embroidery head. For the purpose of changing the thread a selected needle point is brought by moving the needle group relative to the carrier in front of the drive and into engagement with the drive members.
Eine konventionelle Mehmadelkopf-Stickmaschine ist beispielhaft in den
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Es ist nun Aufgabe der Erfindung, bei gattungsgemässen Stickmaschinen ein zuverlässiges Schneiden des Nadelfadens und Halten des Endes des Nadelfadens zu erreichen.It is an object of the invention to achieve a reliable cutting of the needle thread and holding the end of the needle thread in generic embroidery machines.
Bei bekannten Mehmadelkopf-Stickmaschinen mit wenigstens einem Mehrnadelkopf, welcher Mehrnadelkopf als Schlitten ausgebildet und mit einer Mehrzahl von Nadelstellen ausgerüstet ist, ist dieser Schlitten, und sind damit die Nadelstellen lateral beweglich auf einer Tragstruktur der Stickmaschine angeordnet, um eine Nadelstelle in die Arbeitsposition bringen zu können. Weiter ist ein vorzugsweise stationärer Stickantrieb vorgesehen, um eine der Mehrzahl von Stickstellen anzutreiben. An jeder Nadelstelle sind Stichbildungsorgane, wie z.B. Nadelstössel mit Nadel und Fadenausgleichseinheit und Fadenbremse ausgebildet. Die Nadelstellen sind gegenüber der Tragstruktur und dem Stick-Antrieb in eine AktivStellung in Eingriff mit dem Stick-Antrieb und eine Passiv-Stellung ausser Eingriff mit dem Stick-Antrieb bewegbar, wobei jedoch jeweils nur eine Nadelstelle aktiv ist.In known Mehmadelkopf embroidery machines with at least one multi-needle head, which multi-needle head is designed as a carriage and equipped with a plurality of needle points, this slide, and thus the needle points are arranged laterally movable on a support structure of the embroidery machine to bring a needle point in the working position can. Further, a preferably stationary embroidery drive is provided to drive one of the plurality of embroidery sites. At each point of the needle stitching members, e.g. Needle tappet with needle and thread balancing unit and thread brake formed. The needle locations are movable relative to the support structure and the stick drive into an active position into engagement with the stick drive and a passive position out of engagement with the stick drive, but in each case only one needle point is active.
Erfindungsgemäss ist bei einer solchen Mehmadelkopf-Stickmaschine an jeder Nadelstelle des Mehrnadelkopfes ein Fadenschneider ausgebildet. Jeder Fadenschneider umfasst dabei eine Klemmeinrichtung für den Nadelfaden. Im Weiteren ist pro Mehrnadelkopf ein Fadenschneiderantrieb für den Antrieb jeweils eines Fadenschneiders vorgesehen. Eine solche Ausbildung des Mehrnadelkopfes ist zwar aufwändig, ermöglicht aber das sichere Festhalten des Nadelfadenendes jeder Nadelstelle und das Schneiden des Nadelfadens nahe am Stickgrund, sodass kein nachträgliches Säubern des Textils von Fadenresten nötig ist.According to the invention, in such a Mehmadelkopf embroidery machine at each needle point of the multi-needle head, a thread cutter is formed. Each thread cutter comprises a clamping device for the needle thread. Furthermore, one per multi-needle head Thread cutter drive for driving a respective thread cutter provided. Such a design of the multi-needle head is complex, but allows the secure holding the needle thread end of each needle point and the cutting of the needle thread close to the embroidery base, so that no subsequent cleaning of the fabric of thread remnants is needed.
Eine solche Mehmadelkopf-Stickmaschine hat zweckmässigerweise an jeder Stickstelle zusätzlich zum Stickantrieb einen Schneidantrieb für den Fadenschneider. Dabei ist der Fadenschneider zusammen mit den Stichbildungsorganen der Nadelstelle in eine AktivStellung in Eingriff und eine Passiv-Stellung ausser Eingriff mit dem Fadenschneiderantrieb bewegbar. Somit sind Stickorgane und Fadenschneider einer Nadelstelle entweder mit den Antrieben verbunden, nämlich in der Aktivstellung der Nadelstelle, oder aber von diesen entkoppelt, nämlich in der Passivstellung der Nadelstelle.Such a Mehmadelkopf embroidery machine has expediently at each embroidery point in addition to the embroidery drive a cutting drive for the thread trimmer. In this case, the thread cutter is movable together with the stitch formation organs of the needle point into an active position and a passive position out of engagement with the thread cutter drive. Thus, embroidery organs and thread trimmer needle point either connected to the drives, namely in the active position of the needle point, or decoupled from these, namely in the passive position of the needle point.
Vorteilhaft ist der Fadenschneider an einem Support resp. Führungselement angeordnet, welches zusammen mit dem Fadenschneider ein Fadenschneider-Element bildet. Bei jedem Mehrnadelkopf ist eine der Nadelanzahl entsprechende Mehrzahl von Fadenschneider-Elementen ausgebildet, die einzeln an der Tragstruktur befestigt sind. Jedes dieser Fadenschneider-Elemente weist einen einzelnen Fadenschneider mit Klemmeinrichtung auf. Durch die Elementbauweise können einzelne Fadenschneiderelemente leicht ersetzt werden. Zudem sind diese Elemente unabhängig von der Anzahl Nadelstellen eines Mehrnadelkopfes einfach in entsprechender Anzahl einsetzbar.Advantageously, the thread cutter on a support resp. Guiding arranged, which forms a thread cutter element together with the thread cutter. In each multi-needle head, a number of needle cutter corresponding number of thread cutter elements is formed, which are individually secured to the support structure. Each of these thread cutter elements has a single thread cutter with clamping device. Due to the element construction individual thread cutter elements can be easily replaced. In addition, these elements are independent of the number of needle points of a multi-needle head easy to use in an appropriate number.
Eine bevorzugte Mehrnadelkopf-Stickmaschine besitzt eine Führungsschiene für die Fadenschneider-Elemente, auf der sie verschiebbar gelagert sind. Die Führungsschiene hält die Fadenschneider-Elemente in einer vom Stickboden beabstandeten Lage. Sie ist zweckmässigerweise zu beiden Seiten eines Aktiv- oder Kupplungsteils ausgebildet. Jeweils lediglich ein einziges Fadenschneider-Element eines Stickkopfes befindet sich in der Aktivposition. Dies ist dann der Fall, wenn es am Kupplungsteil angeordnet ist,. Das Kupplungsteil ist vorzugsweise zusammen mit dem daran angeordneten Fadenschneider-Element zum Stickboden hin bewegbar ist.A preferred multi-needle head embroidery machine has a guide rail for the thread cutter elements on which they are slidably mounted. The guide rail holds the thread cutter elements in a position spaced from the embroidery bottom. It is expediently formed on both sides of an active or coupling part. In each case only a single thread cutter element of an embroidery head is in the active position. This is the case when it is located on the coupling part. The coupling part is preferably movable together with the thread cutter element arranged thereon towards the embroidery bottom.
Weiter kann die Mehrnadelkopf-Stickmaschine vorteilhaft mit einem Aktuator für die Betätigung des Fadenschneiders bei jedem Mehrnadelkopf ausgerüstet sein, um eine Positionierung des sich in Aktivstellung (d.h. auf dem Kupplungsteil) befindlichen Fadenschneider-Elements in Stickbodennähe oder fluchtend mit der Führungsschiene vorzunehmen. Durch das Vorhandensein von individuellen Aktuatoren können die Fadenschneider selektiv angesteuert werden. Das heisst, die Nadelfäden können selektiv nur bei einer Auswahl der Köpfe geschnitten werden. Der Aktuator kann zusammen mit einem Getriebe, beispielsweise einer Kulissenführung oder einem Koppelgetriebe, für die Schneid-und Klemmbewegung des Fadenschneiders sorgen. Weiter ist vorteilhaft eine allen Mehrnadelköpfen gemeinsame Positionierwelle vorgesehen. Durch Verdrehen der Positionierwelle kann der Fadenschneiders in wählbarem Abstand zum Stickboden präzise positioniert werden. Als Antrieb für die Positionierwelle kann ein kurzhubiger Druckluftzylindereingesetzt sein.Further, the multi-needle embroidery machine can be advantageously equipped with an actuator for the operation of the thread trimmer in each multi-needle head to a positioning of the in active position (ie on the coupling part) located Thread cutter element near embroidery floor or in alignment with the guide rail. Due to the presence of individual actuators, the thread trimmers can be selectively controlled. That is, the needle threads can be selectively cut only with a selection of the heads. The actuator, together with a gear, such as a slotted guide or a coupling gear, provide for the cutting and clamping movement of the thread cutter. Further advantageous is a multi-needle heads common positioning provided. By rotating the positioning shaft, the thread cutter can be precisely positioned at a selectable distance from the embroidery bottom. As drive for the positioning shaft, a short-stroke compressed air cylinder can be used.
Die Erfindung betrifft auch einen Mehrnadelkopf für eine solche Mehmadelkopf-Stickmaschine. In bekannter Art ist ein solcher Mehrnadelkopf mit einer Mehrzahl von Nadelstellen an einem Schlitten ausgebildet. Ein Stickantrieb für eine Nadelstelle gehört zum Mehrnadelkopf. Dieser ist zur stationären Anordnung an einer Tragstruktur der Stickmaschine bestimmt und kann z.B. über eine allen Köpfen gemeinsame Welle angetriebensein. An jeder Nadelstelle sind Stichbildungsorgane, insbesondere ein Nadelstössel mit Nadel und eine Fadenausgleichseinheit, Fadenbremse (Fadenwalze) und dergleichen ausgebildet. Der Schlitten kann an einer dafür vorgesehenen Tragstruktur einer Stickmaschine angeordnet sein, und ist dort durch die Tragstruktur geführt und gegenüber der Tragstruktur und dem Stickantrieb bewegbar. Daher kann mit dem Schlitten jeweils eine der Nadelstellen in eine aktive Stellung in Eingriff mit dem Stickantrieb oder in eine passive Stellung ausser Eingriff mit dem Stickantrieb gebracht werden.The invention also relates to a multi-needle head for such a Mehmadelkopf embroidery machine. In a known manner, such a multi-needle head is formed with a plurality of pin locations on a carriage. An embroidery drive for a needle point belongs to the multi-needle head. This is intended for stationary placement on a support structure of the embroidery machine and may e.g. be driven by a wave common to all minds. At each point of the needle stitch forming members, in particular a needle tappet with needle and a thread balancing unit, yarn brake (thread roller) and the like are formed. The carriage can be arranged on a support structure provided therefor an embroidery machine, and is guided there by the support structure and movable relative to the support structure and the embroidery drive. Therefore, one of the needle positions can be brought into an active position in engagement with the embroidery drive or in a passive position out of engagement with the embroidery drive with the carriage.
Erfindungsgemäss ist bei einem solchen Kopf ein Fadenschneiderantrieb zum Betätigen eines Fadenschneiders vorhanden, welcher Antrieb zur stationären Anordnung an der Tragstruktur der Stickmaschine vorgesehen ist. An jeder Nadelstelle ist ein Fadenschneider mit einer Klemmfunktion für den Faden ausgebildet, der zusammen mit den Stichbildungsorganen der Nadelstelle in eine aktive Stellung, nämlich in Eingriff mit dem Fadenschneiderantrieb, und eine passive Stellung, nämlich ausser Eingriff mit dem Fadenschneiderantrieb bewegbar ist. Dies hat den Vorteil, dass bei jeder Nadelstelle der Faden zuverlässig geklemmt ist und sein Ende mit der Nadelstelle zusammen verschiebbar ist. Dadurch entsteht während dem Arbeiten einer anderen Nadelstelle kein Zug auf den Faden der nicht arbeitenden Nadelstellen. Weiter wird durch die Wahl der Nadelstelle durch Verschieben des Schlittens auch gleich der Fadenschneider/-klemmer in die Aktivposition in Eingriff mit seinem Antrieb bewegt.According to the invention, a thread cutter drive for actuating a thread cutter is present in such a head, which drive is provided for stationary arrangement on the support structure of the embroidery machine. At each point of the needle a thread cutter with a clamping function for the thread is formed, which is movable together with the stitch forming organs of the needle point in an active position, namely in engagement with the thread cutter drive, and a passive position, namely out of engagement with the thread cutter drive. This has the advantage that at each point of the needle thread is reliably clamped and its end is displaced together with the needle point. As a result, no train on the thread of the non-working needle points while working another needle point. Next is by the choice of the needle point by moving the carriage and the same Thread cutter / -klemmer moves into the active position in engagement with its drive.
Weiter ist ein jeder Fadenschneider für solche Mehmadelkopf-Stickmaschinen gemäss einer Weiterentwicklung der Erfindung in einem eigenen Fadenschneider-Element ausgebildet. Ein Support ist mit einem einzelnen Fadenschneider ausgerüstet. In diesem Support ist eine erste Führung ausgebildet. Diese dient zur Führung des Fadenschneider-Elements in einer Führungsschiene einer Mehrnadelkopf-Stickmaschine. Dies erlaubt das Verschieben der Fadenschneider-Elemente entlang der Führungsschiene. Dadurch kann ein beliebiger Fadenschneider in Eingriff mit dem Fadenschneiderantrieb gebrachtsein. Vorteilhaft befindet sich das Fadenschneider-Element in der Aktivposition mit einem vorzugsweise absenkbaren Kupplungsteil in Eingriff. Das Kupplungsteil hat eine den Führungsschienen entsprechende Führungsbahn und fluchtet in der Ruheposition mit der Führungsschiene, sodass in dieser Stellung der Mehrnadelkopf an der Trägerschiene lateral verschiebbar ist.Further, each thread cutter for such Mehmadelkopf embroidery machines according to a further development of the invention is formed in a separate thread cutter element. A support is equipped with a single thread cutter. This support is a first guide trained. This serves to guide the thread cutter element in a guide rail of a multi-needle head embroidery machine. This allows the shifting of the thread cutter elements along the guide rail. As a result, any thread cutter can be brought into engagement with the thread cutter drive. Advantageously, the thread cutter element is in the active position with a preferably lowerable coupling part into engagement. The coupling part has a guide track corresponding to the guide rail and is aligned in the rest position with the guide rail, so that in this position, the multi-needle head on the support rail is laterally displaceable.
Bei einem solchen Fadenschneider-Element kann zweckmässigerweise am Support eine zweite Führung ausgebildet sein, um wenigstens ein bewegliches Teil des Fadenschneiders zu führen. Die Ausbildung dieser zweiten Führung am Support ermöglicht eine gewünschte Materialpaarung zwischen den aneinander reibenden Teilen, insbesondere Kunststoff für den Support und Federstahl für das bewegliche Messer, bzw. Stahl für das bewegliche Klemmteil.In such a thread cutter element may conveniently be formed on the support a second guide to guide at least one movable part of the thread cutter. The formation of this second guide on the support allows a desired material pairing between the parts rubbing against each other, in particular plastic for the support and spring steel for the movable blade, or steel for the movable clamping part.
Der Fadenschneider weist vorzugsweise an einem beweglichen Teil ein Angriffsmittel, beispielsweise einen Zapfen, auf, welches Angriffsmittel in einen Aktuator oder Schneidantrieb einkuppelbar ist. Vorzugsweise besitzt der Fadenschneider zwei bewegliche Teile, nämlich ein bewegliches Messer und ein bewegliches Klemmteil. Die beiden beweglichen Teile sind zweckmässigerweise unverschieblich gegeneinander, so dass das Angriffsmittel auf beide gleichartig wirkt.The thread cutter preferably has, on a movable part, an engagement means, for example a pin, on which engagement means can be engaged in an actuator or a cutting drive. Preferably, the thread trimmer has two movable parts, namely a movable knife and a movable clamping part. The two moving parts are expediently immovable against each other, so that the attacking agent acts on both similar.
Der Fadenschneider für eine Mehrnadelkopf-Stickmaschine weist folgende Merkmale in bekannter Weise auf:
- a) Ein erstes Messer mit seinem ersten Scherbereich, in welchem ersten Scherbereich auf einer Scherseite des ersten Messers eine, oder besser die erste Scherkante ausgebildet ist.
- b) Ein auf der Scherseite des ersten Messers angeordnetes zweites Messer mit seinem, daher einem als zweiten bezeichneten Scherbereich. In diesem zweiten Scherbereich ist auf der Scherseite des zweiten Messers eine mit der ersten Scherkante zusammenwirkende zweite Scherkante ausgebildet.
- c) Diese Messer sind relativ zu einander in einer Schneidrichtung bewegbar. Nämlich beim Schneiden von einer Offenstellung, in welcher die Scherbereiche und Scherkanten in Schneidrichtung in einem Abstand zueinander angeordnet sind, in eine Geschlossenstellung, in welcher die Scherbereiche der Messer mindestens bereichsweise überlappend zueinander angeordnet sind, und umgekehrt.
- d) Ein Angriffsmittel für den Anschluss eines Aktuators des Schneid-Antriebs, mit dem der erste Scherbereich und der zweite Scherbereich relativ zueinander von der Offenstellung in die Geschlossenstellung bewegt werden können.
- e) Eine am Fadenschneider angeordnete Fadenklemmvorrichtung zum Festklemmen eines Fadens oder seines Fadenendes.
- a) A first knife with its first shear region, in which first shear region on a shearing side of the first knife one, or better, the first shearing edge is formed.
- b) A arranged on the shearing side of the first knife second knife with his, therefore a designated second shear region. In this second shear area is on the Shear side of the second knife formed a cooperating with the first shear edge second shear edge.
- c) These knives are movable relative to each other in a cutting direction. Namely, when cutting from an open position, in which the shear areas and shearing edges are arranged in the cutting direction at a distance from each other, in a closed position in which the shear areas of the blades are at least partially overlapping each other, and vice versa.
- d) An engagement means for the connection of an actuator of the cutting drive, with which the first shear area and the second shear area can be moved relative to each other from the open position to the closed position.
- e) An arranged on the thread cutter thread clamping device for clamping a thread or its thread end.
Neu gegenüber dem aus der
- f) Es ist ein erstes Fadenklemmteil mit einem ersten Klemmbereich ausgebildet, und ein zweites vom zweiten Messer separates Fadenklemmteil vorhanden, das dem ersten Fadenklemmteil zugeordnet ist und an welchem ein relativ zum ersten Klemmbereich beweglicher und mit diesem zusammenwirkender zweiter Klemmbereich ausgebildet ist.
- g) Beim Klemmen sind diese Klemmbereiche von einer Offenstellung, in welcher die Klemmbereiche in Schneidrichtung in einem Abstand zueinander angeordnet sind, in eine Geschlossenstellung, in welcher die Klemmbereiche mindestens bereichsweise überlappend zueinander angeordnet sind, beweglich, und bei Loslassen des Fadens umgekehrt.
- h) Das zweite Messer und der zweite Fadenklemmteil sind derart miteinander gekoppelt, dass mindestens ein beweglicher Scherbereich und mindestens ein beweglicher Klemmbereich synchron miteinander bewegbar sind.
- f) There is a first thread clamping part is formed with a first clamping portion, and a second separate from the second knife thread clamping member, which is associated with the first thread clamping member and on which a relative to the first clamping portion movable and cooperating with this second clamping portion is formed.
- g) When clamping these clamping areas of an open position in which the clamping areas are arranged in the cutting direction at a distance from each other, in a closed position in which the clamping areas are at least partially overlapping each other, movable, and vice versa when releasing the thread.
- h) The second knife and the second thread clamping member are coupled together such that at least one movable shear portion and at least one movable clamping portion are synchronously movable with each other.
Durch diese Bauweise sind die Klemmfunktion und die Schneidfunktion durch jeweils zwei eigens dafür vorgesehene Teile verwirklicht. Keines dieser Teile hat eine Klemm- und Schneidfunktion. Das bewegliche Klemmteil und das bewegliche Messer sind separate Teile. Dies erlaubt es, auf kostengünstige Art die Kanten dieses Klemmteils zu runden, ohne die Scharfkantigkeit der Scherkante, zu gefährden.Dies hat den Vorteil, einen Faden einer Nadelstelle sicher und sauber schneiden und halten zu können.By this construction, the clamping function and the cutting function are realized by two specially designed parts. None of these parts has a clamping and cutting function. The movable clamping part and the movable knife are separate parts. This makes it possible to inexpensively round the edges of this clamping part, without jeopardizing the sharp edge of the cutting edge. This has the advantage of being able to cut and hold a thread of a needle point safely and neatly.
Zweckmässig ist, wenn das erste Messer stationär an einem Support, insbesondere dem Support, ausgebildet ist. Es ist nicht vorteilhaft, beide Messer zu bewegen, wenn dies auch möglich wäre. Dasselbe gilt für die Klemmteile. Der erste Klemmbereich ist daher vorteilhaft an einem stationären Teil des Fadenschneiders ausgebildet.It is expedient if the first knife is stationary on a support, in particular the support. It is not advantageous to move both knives, if that would be possible. The same applies to the clamping parts. The first clamping region is therefore advantageously formed on a stationary part of the thread cutter.
Wenn auch die stationären Teile zwischen den beweglichen angeordnet sein könnten, oder die stationären Teile und die beweglichen Teile abwechslungsweise übereinander gestapelt sein könnten (z.B. vom Stickboden weg, zweites Messer, erstes Messer, zweites Klemmteil, erstes Klemmteil), wird bevorzugt, dass das zweite bewegliche Messer und das zweite bewegliche Klemmteil zwischen dem stationären ersten Messer und dem stationären ersten Klemmteil angeordnet sind. Dies erlaubt eine geeignete Vorspannung auf die beiden Scherkanten zu bringen und mit dieser Vorspannung auch gleich den Faden sicher zu klemmen. Diese Anordnung bewirkt sogar, dass die Vorspannung bei dickeren Fäden höher ist als bei dünneren.Although the stationary parts could be arranged between the movable or the stationary parts and the moving parts could be alternately stacked (eg away from the embroidery base, second knife, first knife, second clamping member, first clamping member), it is preferred that the second movable blades and the second movable clamping part between the stationary first blade and the stationary first clamping part are arranged. This allows to bring a suitable bias on the two shearing edges and with this bias also equal to securely clamp the thread. This arrangement even causes the bias to be higher for thicker filaments than for thinner ones.
Davon abweichend könnte natürlich, wie aus dem Stand der Technik bekannt, der Fadenschneider so ausgebildet sein, dass der zweite Klemmbereich am zweiten, beweglichen Messer ausgebildet ist und daher das zweite Klemmteil durch das zweite Messer gebildet ist.Deviating from this, of course, as known from the prior art, the thread cutter could be designed such that the second clamping region is formed on the second, movable knife and therefore the second clamping part is formed by the second knife.
Weiter könnte, wie erwähnt, bei dem Fadenschneider das stationäre erste Messer zwischen dem zweiten, beweglichen Klemmteil und dem zweiten, beweglichen Messer angeordnet sein, und das stationäre erste Messer auf einer Schneidseite eine erste Scherkante, und auf einer dieser Schneidseite gegenüberliegenden Klemmseite einen ersten Klemmbereich aufweisen.Further, as mentioned, in the thread cutter, the stationary first knife may be disposed between the second movable clamp member and the second movable knife, and the stationary first knife may have a first shear edge on a cutting side, and a first clamp portion on a clamp side opposite to this cutting side exhibit.
Das bewegliche zweite Messer und das bewegliche zweite Fadenklemmteil haben bevorzugt je eine im Wesentlichen L-förmige Gestalt (wenn Messer und Fadenklemmteil zusammen ein einziges Teil bilden) mit jeweils einem sich in Bewegungsrichtung erstreckenden Basisschenkel und einem dazu abgewinkelten Funktionsschenkel. Die zweite Scherkante ist an einer Innenseite des Funktionsschenkels ausgebildet, welche Innenseite einen spitzen Scherenwinkel zur ersten Scherkante aufweist. Der zweite Klemmbereich ist an einer dem ersten Klemmteil zugewanden Aussenseite des Funktionsschenkels ausgebildet.The movable second knife and the movable second thread clamping member preferably each have a substantially L-shaped configuration (when the knife and the thread clamping member together form a single part), each having a base extending in the direction of movement and an angled functional leg. The second shearing edge is formed on an inner side of the functional limb, which inner side has an acute shearing angle to the first shearing edge. The second clamping region is formed on an outer side of the functional leg which is assigned to the first clamping part.
Das zweite Messer ist vorzugsweise aus einem Federstahl hergestellt und gegen das erste Messer vorgespannt. Durch die Lage zwischen dem ersten Messer und den Klemmteilen kann diese Vorspannung durch eine Wölbung erreicht werden, d.h. durch eine Krümmung des Basisschenkels entlang seiner Längsrichtung oder der Bewegungsrichtung. Dabei übt die Krümmung eine Vorspannung (Druck) auf die Klemmteile und das erste Messeraus. Zudem ist von Vorteil, wenn der Funktionsschenkel aus der Ebene des Basisschenkels gebogen ist. Diese Biegung kann auch als Verdrehung der Schneidkante gesehen werden und hat den Effekt, dass die Schneidkante mit zunehmendem Abstand zum Basisschenkel einen grösseren Abstand zur Ebene des Basisschenkels aufweist. Dies bewirkt eine sichere Schneidwirkung, da später schneidende Bereiche der Scherkante zuerst schneidende Bereiche der Scherkante nicht anheben können. Dadurch wird die Federkraft immer dem Kreuzungs- und Berührungspunkt der beiden Scherkanten zu geführt.The second knife is preferably made of a spring steel and biased against the first knife. Due to the position between the first knife and the clamping parts can this bias can be achieved by a curvature, ie by a curvature of the base leg along its longitudinal direction or the direction of movement. The curvature exerts a bias (pressure) on the clamping parts and the first Messeraus. In addition, it is advantageous if the functional leg is bent out of the plane of the base leg. This bend can also be seen as a rotation of the cutting edge and has the effect that the cutting edge with increasing distance from the base leg has a greater distance from the plane of the base leg. This provides a safe cutting action since laterally cutting portions of the shearing edge can not first lift cutting portions of the shearing edge. As a result, the spring force is always guided to the intersection and contact point of the two shearing edges.
In der Offenposition ist vorteilhaft der Abstand zwischen dem ersten Klemmbereich und dem zweiten Klemmbereich kleiner als der Abstand zwischen der ersten Scherkante und der zweiten Scherkante. Dadurch wird der Faden zuerst geklemmt und erst nach der Klemmung geschnitten.In the open position, the distance between the first clamping area and the second clamping area is advantageously smaller than the distance between the first shearing edge and the second shearing edge. As a result, the thread is first clamped and cut only after the clamping.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Figuren beispielhaft beschrieben. Es zeigt:
- Fig. 1
- Eine perspektivische Ansicht einer herkömmlichen Mehmadelkopf-Stickmaschine mit mehreren, nämlich 6 Stickköpfen mit je mehreren Nadelstellen;
- Fig. 2
- Eine Frontansicht eines einzelnen Stickkopfs einer herkömmlichen MehmadelkopfStickmaschine, z.B. gemäss
Fig. 1 , mit mehreren, nämlich 6 Nadelstellen; - Fig. 3
- Ein Ausschnitt einer Seitenansicht/Schnittzeichnung eines erfindungsgemässen Mehrnadelkopfes
- Fig. 4
- Eine Frontansicht des Mehrnadelkopfes gemäss
Fig. 3 - Fig. 5
- Eine Seitenansicht eines bekannten Fadenschneiders einer Schifflistickmaschine; welcher mit einer Klemmfunktion ausgebildet ist;
- Fig. 6
- Eine Aufsicht auf den Fadenschneider gemäss
Figur 5 ; - Fig. 7
- Seitenansichten, Aufsichten und ein perspektivischer Ausschnitt einer bevorzugten Ausbildung des Fadenschneiders mit Klemmfunktion für den Faden; 7a Seitenansicht in geöffneter Stellung 7b Aufsicht in geöffneter Stellung 7c Seitenansicht in geschlossener Stellung
- Fig. 8
- 7d Aufsicht in geschlossener Stellung 7e Seitenansicht in einer Zwischenstellung 7f Aufsicht in einer Zwischenstellung 7g perspektivisches Detail der Schneid- Klemmteile in einer Zwischenstellung Eine perspektivische Ansicht einer Nadelstelle mit Nadelfaden im Fadenschneider;
- Fig. 9
- Eine perspektivische Darstellung der Antriebsorgane für den Fadenschneider 9a in angehobener Stellung des Fadenschneiders 9b in abgesenkter Stellung des Fadenschneiders
- Fig. 10
- Eine Seitenansicht mit Schnitt mit dem Fadenschneider in geöffneter Stellung in Sicherheitsabstand zum Stickboden;
- Fig.11
- Eine Seitenansicht mit Schnitt mit dem Fadenschneider in geöffneter Stellung am Stickboden anliegend;
- Fig. 1
- A perspective view of a conventional Mehmadelkopf embroidery machine with several, namely 6 embroidery heads, each with multiple needle locations;
- Fig. 2
- A front view of a single embroidery head of a conventional Mehmadelkopf embroidery machine, eg according to
Fig. 1 , with several, namely 6 needle points; - Fig. 3
- A section of a side view / sectional drawing of an inventive multi-needle head
- Fig. 4
- A front view of the multi-needle head according to
Fig. 3 - Fig. 5
- A side view of a known thread cutter of a Schifflistickmaschine; which is formed with a clamping function;
- Fig. 6
- A view of the thread cutter according to
FIG. 5 ; - Fig. 7
- Side views, views and a perspective section of a preferred embodiment of the thread cutter with clamping function for the thread; 7a side view in the open position 7b supervision in the open position 7c side view in the closed position
- Fig. 8
- 7d supervision in closed position 7e side view in an intermediate position 7f supervision in an intermediate position 7g perspective detail of the cutting-clamping parts in an intermediate position A perspective view of a needle point with needle thread in the thread cutter;
- Fig. 9
- A perspective view of the drive members for the thread cutter 9a in the raised position of the thread cutter 9b in the lowered position of the thread cutter
- Fig. 10
- A side view with cut with the thread trimmer in the open position at a safe distance from the embroidery bottom;
- Figure 11
- A side view with cut with the thread trimmer in the open position on the embroidery floor fitting;
In den
Aus
Dieser bevorzugte Mehrnadelkopf 11 umfasst bei jeder Nadelstelle 13 (in
Wesentlich in Bezug auf die hier vorgestellte Erfindung ist, dass jeder Fadenstelle 13 ein individueller Fadenschneider 27 mit Klemmfunktion zugeordnet ist. Diese, vorliegend sechs Fadenschneider 27 sind nicht als ein einzelnes Teil ausgebildet, so dass sie immer alle zusammen abgesenkt und angehoben werden müssten, was auch möglich wäre, sondern jeder Fadenschneider 27 ist Teil eines individuellen Fadenschneider-Elements 29. Diese Fadenschneider-Elemente 29 sind auf einer Führungsschiene 31 nebeneinander aufgereiht (
Die Führungsschiene 31 ist zweiteilig ausgeführt, wobei ein erster Teil sich links und der andere Teil rechts der Stickstelle erstreckt. Die Länge der Führungsschienenteile ist mindestens so gross, dass diese jeweils (n - 1) Fadenschneider-Elemente 29 aufnehmen können, wobei n der Zahl der Nadelstellen entspricht. An der Stickstelle sind die zueinander orientierten Enden der Führungsschienenteile um die Breite eines Fadenschneider-Elementes 29 voneinander beabstandet. Dadurch ist jenes Fadenschneider-Element 29, welches sich an der Stickstelle befindet, von der Führungsschiene 31 freigegeben. Wie bereits erwähnt, hält die Führungsschiene 31 mittels einer entsprechend ausgebildeten Führungsbahn 39 den Zapfen 37 des Fadenschneiders 27 in einer Geschlossenstellung. Dadurch können sich die Fadenenden durch die Vibrationen der Maschine nicht aus den Klemmvorrichtungen lösen, während andere Nadelstellen arbeiten. Es ist selbstverständlich möglich, die oben erwähnte Führungsbahn unabhängig von Führungsschiene 31 auszubilden.The
Damit die Fadenschneider-Elemente beim Nadelwechsel mit dem Mehrnadelkopf 11 mitlaufen, sind links und rechts des Mehrnadelkopfes 11 Seitenteile 32 vorgesehen (
An der Stickstelle ist die starre Führungsschiene 31 durch ein Kupplungsteil 33 ergänzt. Das Kupplungsteil 33 ist zum Stickboden (Stichplatte 35) hin und zurück bewegbar. Mit ihm wird das Fadenschneider-Element 29 zum Stickboden hin und vom Stickboden weg bewegt.At the embroidery point, the
Wie aus
Die
Die Führung für die beiden beweglichen Teile des Fadenschneiders 27 ist vorzugsweise am Support 49, beispielsweise als Nut, ausgebildet. In dieser Nut an der Unterseite des Supports 49 können die beweglichen Teile 43,45 seitlich geführt sein. Ein gemeinsames Angriffsmittel, der Zapfen 37, dient der Betätigung von zweitem Messer 43 und zweitem Klemmelement 45. Während es nicht besonders von Belang ist, wie die Umrisse der feststehenden Teile hinter der Scherkante 51 (
Es ist in den
Beim Ansticken wird das Fadenschneider-Element zunächst dem Stickgrund bis auf wenige Millimeter, in der Regel auf 4 bis 6 mm, angenähert, indem das Kupplungsteil 33 durch den ersten Bereich der Kulissenbahn abgesenkt wird.When embroidering the thread cutter element is first the embroidery ground to a few millimeters, usually to 4 to 6 mm, approximated by the
In
Anhand der
An den ersten, geraden Bereich der Kulissenführung schliesst sich ein zweiter Bereich an, welcher ungefähr rechtwinklig zum ersten Bereich verläuft. Mit dem Richtungswechsel in der Kulissenführung ist die Abwärtsbewegung in Richtung zum Stickboden hin nicht weiter möglich. Im Eckpunkt zwischen dem ersten und zweiten Bereich der Kulissenführung erfolgt nun eine Verschwenkung des Dreiarmhebels 69 bewirkt durch den weiter aus dem Zylinder ausfahrenden Kolbenstössel 71. Dabei wird die Drehung des Dreiarmhebels 69 durch die Führungskulisse 65 begrenzt. Durch die Verschwenkung des Dreiarmhebels 69 werden die beweglichen Teile (zweites Messer 43 und zweites Klemmteil 45) in die Offenstellung bewegt (
Der Support 49 des Fadenschneider-Elements 29 ist mit einem rückseitigen Führungssteg 48 versehen, damit auch in abgesenkter Aktivstellung des Kupplungsteils 33 sich die übrigen Fadenschneider-Elemente nicht verschieben können. Das aktivierte Fadenschneider-Element 29 verbleibt innerhalb der Reihe von Fadenschneider-Elementen, und benachbarte Fadenschneider-Elemente 29 stossen aneinander. Dadurch wird der Abstand zwischen zwei durch das aktivierte Fadenschneider-Element beabstandete Fadenschneider-Elemente konstant gehalten, so dass bei der Auf- und Abbewegung eine Kollision des aktivierten Elements mit seinen benachbarten Elementen vermieden wird.The
Da jeder Kopf einen eigenen Zylinder 75 mit einem einzeln ansteuerbaren Ventil besitzt, kann eine Selektion der zu schneidenden Köpfe sehr einfach vorgenommen werden.Since each head has its
Nun wird der Hebel 67, in dem die Kulissenführung 65 ausgebildet ist, und an dem der Druckluftzylinder 75 befestigt ist, über eine Welle 77 verschwenkt. Dabei wird das Kupplungsteil 33 und der aktive Fadenschneider 27 zusammen mit seinen Betätigungsorganen weiter abgesenkt bis knapp auf die Oberfläche des Stickbodens. In geringem Abstand zum Stickboden wird nun der Faden 10 geschnitten. Dies erfolgt durch ein Einziehen des Kolbenstössels 71. Die Führungskulisse 63 erzwingt eine Verschwenkung des Dreiarmhebels 69 und damit die Betätigung des Fadenschneiders 27 über den Zapfen 37, der in Eingriff mit dem dritten Arm 69.3 steht. Nachdem der Bolzen 63 den zweiten Bereich der L-förmigen Kulissenführung 65 durchlaufen hat, wird der Hebel 65 wieder in die ursprüngliche Stellung angehoben. Beim weiteren Einziehen des Kolbenstössels 71 wird das Kupplungsteil 33 mit dem Fadenschneider-Element 29 angehoben bis in die Stellung gemäss
Legende
- 10
- Faden, Nadelfaden, Vorderfaden, Oberfaden
- 11
- erfindungsgemässer Mehrnadelkopf
- 13
- Nadelstelle
- 15
- Fadenzufübrung
- 17
- Fadenwalze, Fadenbremse
- 19
- Fadenwächter
- 21
- Grosser oder bewegter Fadenleiter
- 23
- Kleiner oder stationärer Fadenleiter
- 25
- Nadel
- 27
- Fadenschneider
- 28
- Führungsschiene für Mehrnadelkopf
- 29
- Fadenschneider-Element
- 31
- Führungsschiene für die passiven Fadenschneider-Element
- 32
- Seitenteile
- 33
- Kupplungsteil
- 35
- Stichplatte
- 37
- Zapfen
- 39
Nut der Führungsschiene 31- 41
- Erstes, stationäres Messer
- 43
- Zweites, bewegliches Messer
- 45
- Zweites, bewegliches Klemmteil
- 47
- Erstes, stationäres Klemmteil
- 48
- Führungssteg am Support
- 49
- Support
- 50
- Erste Führung am Support
- 51
- Erste, stationäre Scherkante
- 53
- Zweite, bewegliche Scherkante
- 55
- Zweite, bewegliche Klemmkante
- 57
- Erste, stationäre Klemmkante
- 59
- Tragstruktur für die
Stickköpfe 11 - 61
- Stoffdrücker
- 63
- Bolzen am Dreiarmhebel 69
- 65
- Kulissenführung
für den Bolzen 63 - 67
- Schwenkarm
mit der Kulissenführung 65 - 69
- Dreiarmhebel, mit dem ersten, zweiten und dritten Arm 69.1, 69.2, 69.3
- 71
- Kolbenstössel des Druckluftzylinders 75
- 73
- Schwenkachse des Dreiarmhebels 69
- 75
- Druckluftzylinder
- 77
- Welle
- 79
- Nadelstössel
- 201
- Gestell
- 203
- Sticktisch
- 205
- Stickkopf
- 207
- Fadenbremse, Fadenführungselement
- 209
- Fadenleiter, Fadenaufnahmehebel
- 211
- Fadenumlenkteil
- 213
- Fadenkrebs
- 214
- Nadelstössel
- 215
- Nadel
- 217
- Stoffdrücker
- 219
- Stickrahmen
- 221
- Spannrahmen
- 223
- Linearführung
- 270
- Fadenschneider
- 271
- Leiste, alle Fadenschneider tragend
- 273
- Schneid-Klemm-Zunge
- 275
- Stehendes Messer
- 277
- Klemmfeder
- 10
- Thread, needle thread, front thread, upper thread
- 11
- inventive multi-needle head
- 13
- needle point
- 15
- Fadenzufübrung
- 17
- Thread roller, thread brake
- 19
- thread monitor
- 21
- Large or moving thread guide
- 23
- Small or stationary thread guide
- 25
- needle
- 27
- thread cutter
- 28
- Guide rail for multi-needle head
- 29
- Thread cutter element
- 31
- Guide rail for the passive thread cutter element
- 32
- side panels
- 33
- coupling part
- 35
- needle plate
- 37
- spigot
- 39
- Groove of the
guide rail 31 - 41
- First, stationary knife
- 43
- Second, movable knife
- 45
- Second, movable clamping part
- 47
- First, stationary clamping part
- 48
- Guide bar on the support
- 49
- Support
- 50
- First guide on the support
- 51
- First, stationary shearing edge
- 53
- Second, movable shearing edge
- 55
- Second, movable clamping edge
- 57
- First, stationary clamping edge
- 59
- Support structure for the embroidery heads 11
- 61
- presser
- 63
- Bolt on the three-arm lever 69
- 65
- Slotted guide for the
bolt 63 - 67
- Swivel arm with the sliding
guide 65 - 69
- Three-arm lever, with the first, second and third arm 69.1, 69.2, 69.3
- 71
- Piston plunger of the
air cylinder 75 - 73
- Pivot axis of the three-arm lever 69
- 75
- Air Cylinder
- 77
- wave
- 79
- needle plunger
- 201
- frame
- 203
- Stick table
- 205
- Stick head
- 207
- Thread brake, thread guide element
- 209
- Thread guide, thread take-up lever
- 211
- Fadenumlenkteil
- 213
- thread cancer
- 214
- needle plunger
- 215
- needle
- 217
- presser
- 219
- hoop
- 221
- tenter
- 223
- linear guide
- 270
- thread cutter
- 271
- Strip, carrying all thread trimmers
- 273
- Insulation displacement tongue
- 275
- Standing knife
- 277
- clamping spring
Claims (15)
dadurch gekennzeichnet,
characterized,
gekennzeichnet durch eine allen Mehrnadelköpfen (11) gemeinsame Positionierwelle (77) zum Absenken und zum Positionieren des Fadenschneiders (27) in einem wählbarem Abstand zum Stickboden.Multi-needle embroidery machine according to one of the preceding claims,
characterized by a common multi-needle heads (11) Positionierwelle (77) for lowering and for positioning the thread cutter (27) at a selectable distance from the embroidery bottom.
einen Support (49), welcher mit einem einzelnen Fadenschneider (27) ausgerüstet ist, in welchem Support (49) eine erste Führung (50) ausgebildet ist zur Führung des Fadenschneider-Elements (29) in einer Führungsschiene (31) eines Mehrnadelkopfes (11). Thread cutter element for Mehmadelkopf embroidery machines with a thread cutter with a movable part (43,45) and a stationary part (41), further characterized by
a support (49) which is equipped with a single thread cutter (27), in which support (49) a first guide (50) is designed to guide the thread cutter element (29) in a guide rail (31) of a multi-needle head (11 ).
weiter gekennzeichnet durch,
further characterized by
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01961/09A CH702471A1 (en) | 2009-12-18 | 2009-12-18 | Multi-needle-head embroidery machine e.g. hand embroidery machine, for textile, has thread cutter comprising clamping parts, and bolt, guide bar, pivoting arm, compressed air cylinder and shaft provided for head to actuate cutter |
CH01996/10A CH702472A2 (en) | 2009-12-18 | 2010-11-24 | Multi-needle head embroidery machine, multi-needle head for such, and thread cutter element and thread cutter for such. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2336413A2 true EP2336413A2 (en) | 2011-06-22 |
EP2336413A3 EP2336413A3 (en) | 2011-09-28 |
EP2336413B1 EP2336413B1 (en) | 2013-07-24 |
Family
ID=43837736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10195847.8A Not-in-force EP2336413B1 (en) | 2009-12-18 | 2010-12-20 | Multi-needle-head embroidery machine, multi-needle-head for this machine, thread cutting element and thread cutter for this machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2336413B1 (en) |
KR (1) | KR101790642B1 (en) |
CN (1) | CN102121178A (en) |
CH (1) | CH702472A2 (en) |
TW (1) | TWI527951B (en) |
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CN110485077A (en) * | 2019-07-15 | 2019-11-22 | 浙江信胜科技股份有限公司 | A kind of embroidery machine that upper thread when realizing colour changing is synchronous |
CN113089204A (en) * | 2021-02-22 | 2021-07-09 | 诸暨市顺达机械制造有限公司 | Embroidery machine process clamp convenient to use |
CN113604975A (en) * | 2021-07-30 | 2021-11-05 | 安徽咏鹅家纺股份有限公司 | Quilting device of multicolor quilting machine and control method thereof |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CH712431A1 (en) * | 2016-05-03 | 2017-11-15 | Lässer Ag | Method for actuating a thread cutting and thread clamping device for cutting the shuttle thread on a large embroidery machine and a device for carrying out the method. |
KR102120671B1 (en) * | 2019-09-30 | 2020-06-09 | 김기선 | Computer embroidery apparatus |
CN111254602A (en) * | 2020-04-02 | 2020-06-09 | 丹阳市德顺刺绣机械有限公司 | Cutting device for embroidery machine |
CN113373612B (en) * | 2021-06-30 | 2022-08-23 | 安徽工程大学 | Adjustable accurate positioning needle inserting device for embroidery |
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- 2010-11-24 CH CH01996/10A patent/CH702472A2/en not_active Application Discontinuation
- 2010-12-10 TW TW099143140A patent/TWI527951B/en not_active IP Right Cessation
- 2010-12-17 KR KR1020100129818A patent/KR101790642B1/en active IP Right Grant
- 2010-12-20 EP EP10195847.8A patent/EP2336413B1/en not_active Not-in-force
- 2010-12-20 CN CN2010106019484A patent/CN102121178A/en active Pending
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CH712727A1 (en) * | 2016-07-21 | 2018-01-31 | Lässer Ag | Embroidery machine, in particular shuttle embroidery machine. |
CN110485077A (en) * | 2019-07-15 | 2019-11-22 | 浙江信胜科技股份有限公司 | A kind of embroidery machine that upper thread when realizing colour changing is synchronous |
CN110485077B (en) * | 2019-07-15 | 2024-03-12 | 浙江信胜科技股份有限公司 | Embroidery machine capable of realizing facial line synchronization during color changing |
CN113089204A (en) * | 2021-02-22 | 2021-07-09 | 诸暨市顺达机械制造有限公司 | Embroidery machine process clamp convenient to use |
CN113089204B (en) * | 2021-02-22 | 2023-06-30 | 诸暨市信顺精密机械有限公司 | Embroidery machine process clamp convenient to use |
CN113604975A (en) * | 2021-07-30 | 2021-11-05 | 安徽咏鹅家纺股份有限公司 | Quilting device of multicolor quilting machine and control method thereof |
CN113604975B (en) * | 2021-07-30 | 2022-09-27 | 安徽咏鹅家纺股份有限公司 | Quilting device of multicolor quilting machine and control method thereof |
Also Published As
Publication number | Publication date |
---|---|
EP2336413B1 (en) | 2013-07-24 |
KR20110070820A (en) | 2011-06-24 |
CN102121178A (en) | 2011-07-13 |
TWI527951B (en) | 2016-04-01 |
KR101790642B1 (en) | 2017-10-26 |
TW201131041A (en) | 2011-09-16 |
CH702472A2 (en) | 2011-06-30 |
EP2336413A3 (en) | 2011-09-28 |
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