CN101619519B - Knitwear take-out device - Google Patents
Knitwear take-out device Download PDFInfo
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- CN101619519B CN101619519B CN2009101512754A CN200910151275A CN101619519B CN 101619519 B CN101619519 B CN 101619519B CN 2009101512754 A CN2009101512754 A CN 2009101512754A CN 200910151275 A CN200910151275 A CN 200910151275A CN 101619519 B CN101619519 B CN 101619519B
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- drawing mechanism
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- extraction
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/88—Take-up or draw-off devices for knitting products
- D04B15/90—Take-up or draw-off devices for knitting products for flat-bed knitting machines
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Abstract
The invention relates to a knitting extraction device having a plurality of front extraction mechanisms (4, 5) arranged below a front needle bed (200) and a plurality of rear extraction mechanisms (4 ', 5') arranged below a rear needle bed (201), the front extraction mechanisms and the rear extraction mechanisms (4, 5; 4 ', 5') being arranged opposite one another in pairs on both sides of an extraction gap for a knitting (400), the knitting (400) being clamped in a frictionally engageable connection between the front and rear extraction mechanisms and being extractable by means of them, wherein each extraction mechanism (4, 5; 4 ', 5') can be placed against the knitting (400) with an adjustable force and can be extracted therefrom, and each extraction mechanism (4, 5; 4 ', 5') can be moved individually and controllably counter to the extraction direction (D) of the knitting (400), wherein the individual extraction mechanisms (4, 5; 4 ', 5') are controlled as a function of controlling the needle movement of a knitting machine, 5; 4 ', 5').
Description
Technical field
The present invention relates to a kind of knitted fabric take-down device that is used for flat machine, its have a plurality of fronts, be arranged on before drawing mechanism below the needle-bar and a plurality of back, be arranged on the drawing mechanism below the needle-bar of back, wherein the front and the drawing mechanism back are arranged on the both sides in the extraction gap of knitwear opposite one another, in couples, but and the knitwear frictional fit is clamped between the drawing mechanism front and the back with connecting and can be by their extractions.
Background technology
In order to be manufactured on all exigent spinning cloth in pattern technology and moulding aspect, advantageously, for each row to be constituted applies best extraction power on spinning cloth.
Therefore developed drawing mechanism in the past, wherein knitwear as far as possible closely are arranged on below the needle-bar that is supporting knitting needle and are booked and extract out.
Therefore DE 2803135C2 has described a kind of withdrawing device with synchronous plate (Mitnehmerklappen), and this synchronous plate has undulatory end face and utilizes it to be embedded in the knitwear being used for knitwear are extracted out.Opposite at knitwear is provided with the abutment face that is used for knitwear.The shortcoming of this known devices is, can not guarantee to extract knitwear safely out at the tail end of the corrugated end face of synchronous plate, and the saw shape section bar of end face has the danger of the spun yarn that damages knitwear, thereby makes the surface nappy of knitwear.
By the known a kind of withdrawing device of EP 0841422B1, wherein, the drawing mechanism with knitting needle needle point is embedded in the knitwear and with its extraction.Drawing mechanism is arranged on the front and back of knitwear in couples and is bearing on the guide plate.Also exist the danger that the knitting needle needle point is done rough knitwear surface here.
EP 0523662B1 has described a kind of withdrawing device with opposed clamper, and clamper connects the knitwear frictional fit to be clamped between the clamper also to be extracted out.Clamper after being arranged on below the needle-bar is fixed on the dihedral lath and by it carries out oscillating motion together.Clamper can be swung separately at the leading flank of knitwear.Pendulum then is to carry out together on the whole length of the both sides of knitwear at needle-bar from the motion of its initial-extraction position of immigration of the clamper of knitwear, so clamper can not apply the effect that keeps width to knitwear.If knitwear are applied the effect that keeps width, then in kind of scheme, must extra knitwear clamping device be set for withdrawing device.
Summary of the invention
The objective of the invention is, create a kind of knitted fabric take-down device that is used for flat machine, it comes safety and extracts knitwear carefully out with the required extraction power of row to be formed.
This purpose is achieved by being used for a kind of knitted fabric take-down device that is used for flat machine, described withdrawing device has a plurality of fronts, drawing mechanism before being arranged on below the needle-bar and a plurality of back, drawing mechanism after being arranged on below the needle-bar, wherein the front and the drawing mechanism back are opposite one another, be arranged on the both sides in the extraction gap of knitwear in couples, and but the knitwear frictional fit is clamped between the drawing mechanism front and the back also by their extractions with connecting, this withdrawing device is characterised in that, in the drawing mechanism each can abut on the knitwear and from knitwear with adjustable power and move apart, and each drawing mechanism can be along moving separately with the extraction direction against knitwear controllably, and wherein the motion of single drawing mechanism is controlled in the control of moving according to the knitting needle to knitting machine.
Also be set directly at below the needle-bar by withdrawing device 1 of the present invention, so knitwear can closely be booked in the lopping scope and extract out to the greatest extent.The drawing mechanism frictional fit of withdrawing device is clamped in their centres with knitwear with connecting and it is extracted out.This means that this can not make the surface of spinning cloth become coarse.The clamping surface of drawing mechanism can for optimize by corresponding material for example the frictional fit that constitutes of the material of rubber type connect and make and/or have a suitable surface texture.By what can guarantee be according to the motion of the control of knitting needle motion being controlled drawing mechanism, apply best extraction power to knitwear for each row to be constituted or for a plurality of rows, that is to say, in knitting cycle, both seldom pulling force was applied on the knitwear quite a fewly.
At this advantageously, the motion with the drawing mechanism back a pair of front can synchronously be carried out.The front side of knitwear and dorsal part are drawn out of mechanism by this way equably and load.But also possible is, has only the drawing mechanism of front or has only the drawing mechanism of back to extract motion out, and opposed separately drawing mechanism then remains on its extreme higher position.For the knitwear of being made up of at least two knitwear planes whole or in part, this is especially favourable.
In a kind of preferred structural scheme, but in the drawing mechanism each all can extract out move the distance that can be scheduled on the direction, on this position, stop preset time and next be moved back into initial-extract the position out.The path relevant with loop length determined extraction power.Drawing mechanism suspends in that the time of dark position must be enough, so that make extraction power generation effect, finishes safely up to lopping.Then, drawing mechanism is motion up once more, so that can be applied to extraction power on the knitwear again.
If withdrawing device extends, then can produce other advantage on the whole length of needle-bar.Therefore, withdrawing device can be brought into play the width maintenance effect to knitwear simultaneously, and promptly knitwear are drawn out of device all the time and catch on its whole width, so extraction power can work on all positions equably.
In order accurately to control single drawing mechanism, advantageously, the front take out drawing mechanism with mechanism and back in the groove of preceding guide plate and rear deflector can along with move, support from knitwear ground against extracting direction out towards knitwear swing and pendulum.Guiding by groove can make single drawing mechanism obtain the most accurate and in check motion.These single drawing mechanisms also can move on a plurality of ground in parallel with each other, thereby single drawing mechanism group is always carried out synchronous motion.
Especially when drawing mechanism was arranged in the gathering sill of guide plate, advantageously, the motion of drawing mechanism was undertaken by the control cam, and the leg that is arranged on the drawing mechanism is embedded in this control cam.This control cam not only can along with control the linear movement of drawing mechanism against extracting direction out, move apart but also drawing mechanism is moved on the knitwear and from knitwear.The motion of control cam on guide plate combines with the motion of knitting cam (Strickschloss) in an advantageous manner, and this knitting cam is used for controlling the motion of knitting needle.
In especially preferred embodiment, be provided with a column weight folded that be provided with, top and the folded front and the drawing mechanism back that be provided with, following of a column weight, wherein Shang Mian the drawing mechanism with following alternately is arranged on respectively on needle-bar vertical.The front and the drawing mechanism back also are divided into top and following drawing mechanism, and they replace respectively.This has started extraction power conduction and has been applied to other variation possibility on the knitwear.
At this advantageously, the clamping surface moulding as follows of top and following drawing mechanism, that is, two list corresponding formation with following drawing mechanism face integral retaining surface approximate sealing, strip.Guaranteed by this way directly on the whole length at needle-bar below the knitting point, to produce unified extraction relation.
If before drawing mechanism moves to initial-extraction position down, that last drawing mechanism can take the lead in moving to is initial-extract the position out, therefore knitwear are clamped between the drawing mechanism front and the back sustainably, and then being divided into toply can provide special advantage with following drawing mechanism.This means that knitwear all are drawn out of device and catch in its whole process of production.Therefore withdrawing device also can satisfy the width of knitwear is kept function.
If be provided with spring to be used to the producing thrust of drawing mechanism towards knitwear, wherein spring force is adjustable, then can produce further advantage.The essential thrust of drawing mechanism on knitwear can be by this way with the characteristic of knitwear, be complementary as yarn qualities and surface texture.
The reliability of the working method of withdrawing device is improved by the linear movement of drawing mechanism and/or oscillating motion are limited.But the function of debug thus, and avoid on knitwear, applying too strong power.Other measure at this direction is that regulation is fixed on it to drawing mechanism at least and extracts out on the extraction position that reaches after motion finishes.Thereby can avoid drawing mechanism in extraction, to move because of carelessness and minimizing extraction power thus up.
The invention still further relates to a kind of knitwear method that is used for extracting out on flat machine.In the method, knitwear frictional fit below the needle-bar of flat machine is clamped between the drawing mechanism front and the back and extraction with connecting, wherein regulate the thrust of drawing mechanism, the controlled motion that each in the drawing mechanism all can also be moved according to the knitting needle to knitting machine individually according to the quality of knitwear.Wherein advantageously, knitwear are clamped between the drawing mechanism front and the back constantly.Therefore knitwear can keep width in its whole process of production.
Description of drawings
Describe preferred embodiment in detail by accompanying drawing below by withdrawing device of the present invention.Wherein:
Fig. 1 is the partial sectional view perpendicular to the machine longitudinal axis with flat machine of withdrawing device;
Fig. 2 is the view of rear deflector of the withdrawing device of Fig. 1;
Fig. 3-the 7th, corresponding to the cutaway view of Fig. 1, wherein the drawing mechanism of the withdrawing device of Fig. 1 is in different positions;
Fig. 8 is the view of knitting cam, has wherein marked the motion of drawing mechanism of the withdrawing device of Fig. 1;
Fig. 9-the 12nd corresponding to the flat machine cutaway view of Fig. 3, has wherein used the withdrawing device that is used for the differing needles fabric.
The specific embodiment
Can see withdrawing device 1 in the cutaway view of Fig. 1, it is arranged between preceding needle-bar 200 and the back needle-bar 201 symmetrically about mid-plane 100.Withdrawing device 1 relatively closely is positioned under the crosspoint 101 (pin crosspoint) at this, and the lower surface that is bearing in the pin 300,301 among two needle-bars 200,201 constitutes described crosspoint each other.Withdrawing device 1 has the length of needle-bar 200,201 at least at this.
Section shown in Figure 1 so extends by guide plate 2,3, promptly can see groove 21 in preceding guide plate 2, and last drawing mechanism 4 is longitudinally movable and guiding swingably in this groove 21.Can see groove 31 in rear deflector 3, last drawing mechanism 5 ' is longitudinally movable and be bearing in swingably in this groove 31.
Also supporting pole 22,32 in this external guide plate 2,3, they are by last drawing mechanism 4,5; 4 ', 5 ' slotted hole 41,51 surrounds.So drawing mechanism 4,5; 4 ', 5 ' is fixed in the groove 21,31.In addition, pole 22,32 has constituted drawing mechanism 4,5; The axis of 4 ', 5 ' oscillating motion has also formed their the mechanical type gauge along the mobile route of groove 21,31 simultaneously.If their slotted hole 41,51 abuts on the pole 22,32 with its surface 42,52, then arrived drawing mechanism 4,5; 4 ', 5 ' extreme higher position.On the contrary, if the surface 43,53 of slotted hole 41,51 abuts on the pole 22,32, then drawing mechanism 4,5; 4 ', 5 ' is in extreme lower position.Shown here, drawing mechanism 4,5; 4 ', 5 ' the fixed form in the groove 21,31 of guide plate 2,3 is exemplary.Other technical scheme also is fine.
Abut in the oscillating motion that limits extractor displacer 4,4 ' hold assembly 6 on drawing mechanism 4,4 ' the surface 45,46 by hold assembly edge 62,63.For following drawing mechanism 5,5 ', abut in the oscillating motion that limits hold assembly 6 ' on drawing mechanism 5,5 ' the surface 55,56 by hold assembly edge 62 ', 63 '.Hold assembly 6,6 ' clamping surface 61,61 ' are owing to surperficial structure and/or material have very high friction valve.
The drawing mechanism 4,5 of preceding guide plate 2 can move by arrow mark 150, and the drawing mechanism 4 ', 5 ' of rear deflector 3 can move by arrow mark 150 '.Arrow U shows the motion in towards the crosspoint 101 (pin crosspoints), and arrow D shows the motion away from pin crosspoint 101.Arrow S representative is used for closing the oscillating motion of hold assembly 6, the oscillating motion that arrow O representative is used for opening hold assembly 6.
In the drawing mechanism 4,5 in front, the power that moves through flexural spring 7 on direction of arrow S realizes that described flexural spring 7 comes the support arm 47,57 of drawing mechanism 4,5 is loaded by its end face 70.For the drawing mechanism 4 ', 5 ' of back, the motion on direction of arrow S realizes by flexural spring 8 in a similar manner, and described flexural spring 8 comes drawing mechanism 4 ', 5 ' support arm 47,57 are loaded by its end face 80. Flexural spring 7,8 is separately fixed on the axle 9,10. Axle 9,10 can be rotated to support on the unshowned support unit, and this support unit links to each other with guide plate 2,3 in an advantageous manner. Flexural spring 7,8 has not only been realized drawing mechanism 4,5; 4 ', 5 ' in the oscillating motion on knitwear 400 on the direction of arrow S, thereby makes hold assembly 6,6 ' abut on the knitwear 400, but also can determine with which type of power hold assembly 6,6 ' is pressed on the knitwear 400.When opposed drawing mechanism 4,5; 4 ', 5 ' when moving on extracting direction D out together, and this power is relevant with the frictional force of effect between clamping surface 61 and knitwear 400 again.Generated extraction power from this frictional force again, the tensile force that this extraction power will work on direction of arrow A is brought in the knitwear 400, therefore can continue and lopping uniformly.
The support arm 47,57 of drawing mechanism 4,5 constitutes in an advantageous manner like this, the power that is flexural spring 7,8 can change on each height and position of drawing mechanism 4,5, make hold assembly 6,6 ' on each height and position of drawing mechanism 4,5 with same defeating on knitwear 400.
Because knitwear can by different materials with constitute with different connected modes, therefore when making various knitwear, each knitwear part all needs special extraction power, this extraction power should can be each row to be constituted in an advantageous manner, or is at least the row that constitutes adjusts in the motion process of balladeur train on the width of knitwear.In pressing withdrawing device of the present invention, the Change Example of extracting power out is as passing through to change drawing mechanism 4,5; 4 ', 5 ' thrust realizes.In an illustrated embodiment, this realizes by axle 9,10 is turned over the identical anglec of rotation in the opposite direction.If two axles 9,10 have then improved thrust in direction of arrow P+, P '+upward rotation, if they have then reduced thrust in direction of arrow P-, P '-upward motion.The change of thrust also can realize like this, and the end face 70,80 of flexural spring 7,8 that promptly has constant spring force is at drawing mechanism 4,5; The position that reclines on 4 ', 5 ' the support arm 47,57 is transformable.
In the length range of the side of preceding guide plate 2 and application region, be provided with stopping dam 11, and rear deflector 3 is provided with stopping dam 12 in a similar manner.If clamping surface 61,61 ' arrives the zone of mid-plane 100 at least, then go up drawing mechanism and following drawing mechanism 4,5; 4 ', 5 ' support arm 47,57 abuts in these stopping dams 11,12.Therefore mechanically limit drawing mechanism 4,5; 4 ', 5 ' with mid-plane 100 immediate positions.But this limiting mode only is exemplary.
KD1 comes the leg 48,58 of drawing mechanism 4,5 is loaded by the control cam, thereby the preceding drawing mechanism 4,5 in the guide plate 2 is in the motion of extracting out on the direction D before realizing.Cam KD2 comes leg 48,58 is loaded by control, thereby the back drawing mechanism in the guide plate 34 ', 5 ' is in the motion of extracting out on the direction D before realizing.Control cam KD1, KD2 can switch like this, that is, they otherwise leg 48,58 loaded, or do not load.In addition, control cam KD1, KD2 can regulate in vertical direction, so drawing mechanism 4,5; 4 ', 5 ' can move into each position arbitrarily within its vertical range of movement.
Preferably, drawing mechanism 4,5; 4 ', 5 ', be maintained fixed on the height and position that drawing mechanism 5,5 ' took them to by control cam KD1, KD2 before each at least, motion in the opposite direction imported in them up to control cam by other.Fixing mode is not shown herein.
KU1 comes leg 48,58 is loaded by the control cam, thereby the drawing mechanism 4,5 of realization front is in reverse motion on the direction of arrow U that extracts direction D out.For the drawing mechanism 4 ', 5 ' of back, this can realize by control cam KU2.Control cam KU1, KU2 can constitute like this at this, and promptly drawing mechanism 4,5; 4 ', 5 ' always move to by them initial-to extract the position out be on the extreme higher position, they are nearest from pin crosspoint 101 in this position.In a kind of preferred structural scheme, last drawing mechanism 4,4 ' leg 48 at first are loaded, thereby last drawing mechanism 4,4 ' is taken to the highest position.And then, leg 58 controlled cam KU1, KU2 load, be used for also drawing mechanism 5,5 ' down taken to up initial-extract the position out.Therefore, knitwear 400 continue to be able to tensioning and to keep width by it by withdrawing device 1.
In order to activate drawing mechanism 4,5; 4 ', 5 ' oscillating motion also is provided with the control cam, and control cam KS1, KS2 are used herein to drawing mechanism 4,4 ', and control cam KS3, KS4 are used herein to down drawing mechanism 5,5 '.Control cam KS1, KS2, KS3, KS4 have activated drawing mechanism 4,5 respectively; 4 ', 5 ' leaves the i.e. motion on direction of arrow O of knitwear 400.Control cam KS1, KS2, KS3, KS4 act on drawing mechanism 4,5 at this; On 4 ', 5 ' second leg 49,59.Wherein, at drawing mechanism 4,5; 4 ', 5 ' moves to before the extreme higher position, launches drawing mechanism 4,5 respectively; 4 ', 5 ' oscillating motion.
In a kind of preferred structural scheme, control cam KS1, KS2, KS3, KS4 can change between active position and passive position, and they load at the leg 49,59 of active position to drawing mechanism.
Under normal ruuning situation, the front, top drawing mechanism 4 moves on extraction direction D and against extracting direction U out with the drawing mechanism 4 ' top, the back that is positioned at its opposite.Above and the following drawing mechanism 5,5 ' of back under normal circumstances also be synchronously to move.But also possible is to have only the last drawing mechanism and the following drawing mechanism 4,5 of a guide plate 2,3; 4 ', 5 ' is extracting the extraction stroke that has moved regulation on the direction by control cam KD1, KD2 out.Be necessary for wherein drawing mechanism 4,5 in this case; 4 ', the 5 ' guide plate 2,3 that should not extract motion out is introduced among switchable control cam KH1 or the KH2.So they are with drawing mechanism 4,5; 4 ', 5 ' remains on initial-extraction position, and relative drawing mechanism 4,5; 4 ', 5 ' extracts motion out on direction D.
In a kind of preferred structural scheme, control cam KD1, KU1, KH1, KS1, KS3 are synchronized with each knitting system motion by preceding guide plate 2, and this knitting system has been realized the motion of the pin 300 of preceding needle-bar 200.Control cam KD2, KU2, KH2, KS2, KS4 are synchronized with each knitting system along the rear deflector 3 of withdrawing device 1 in a similar manner and move, and this knitting system has been realized the motion of the pin 301 of back needle-bar 201.
Fig. 2 shows regional area rear deflector 3, that find out from the mid-plane 100 of knitting machine (Fig. 1) with vertical view.Drawing mechanism 4 ', 5 ' is positioned at the extreme higher position.Can see the groove 31 that is arranged in the guide plate 3, they all preferably have identical distance each other.Following drawing mechanism 5 ' and last drawing mechanism 4 ' are longitudinally movable and be bearing in swingably in the groove 31 to continue mode alternately.Drawing mechanism 4 ', 5 ' is carrying hold assembly 6,6 ', and hold assembly 6,6 ' can carry out restricted oscillating motion about its upright position.Hold assembly 6,6 ' such moulding, that is, the integral retaining surface 600 ' of the strip of their clamping surface 61, an approximate sealing of 61 ' complementary on the whole one-tenth, its length equals the space length NRL of pin and has certain function height.
In whole extraction, the following drawing mechanism 5,5 ' that last drawing mechanism 4,4 ' is adjacent constitutes functional unit, represents the drawing mechanism of front below with Ref. No. 50, with the drawing mechanism of Ref. No. 50 ' expression back.In withdrawing device 1, on the whole width of knitwear 400, single clamping surface 61, the 61 ' integral body that constitutes by the drawing mechanism 4,5 of preceding guide plate 2 are extracted surface 600 out and are abutted on the front side of knitwear 400 (Fig. 1), are extracted out surface 600 ' and are abutted on the dorsal part of knitwear 400 (Fig. 1) by the back drawing mechanism 4 ' of rear deflector 3,5 ' single clamping surface 61, the 61 ' integral body that constitutes.Pressing a kind of preferred embodiment of withdrawing device, if in extraction, at first is the last drawing mechanism and the following drawing mechanism 4,5 of front and back; 4 ', 5 ', be that down drawing mechanism 5,5 ' is individually then, and then being to go up drawing mechanism 4,4 ', is again at last that the preceding withdrawing device and the back withdrawing device of top and back abuts on the knitwear 400, and knitwear 400 all are drawn out of device 1 and clamp in the whole time so.Therefore 1 pair of knitwear of withdrawing device have outstanding width maintenance effect.This is mainly favourable to knitting condition in the fringe region of knitwear.If knitting cycle just temporarily carries out, then in the coil of the pin that does not temporarily form coil, import predetermined tensile force by withdrawing device 1 in the single zone of knitwear 400.The coil that forms the pin of coil is drawn out of, and imports the tensile force of being scheduled to for each row to be constituted.
Fig. 3-7 is being equivalent to the working method that analysing and observe of Fig. 1 there is shown withdrawing device 1.Withdrawing device 1 is each row and has realized predetermined extraction power for the knitwear of making by single system provide such possibility.For the knitwear that utilize a plurality of knitting systems to make, for all rows have realized identical predetermined extraction power, these rows produce on the width of knitwear in the motion of balladeur train.But it can be each row at this and brings unique effect.Drawing mechanism 4,5; 4 ', 5 ' is relevant with the motion of pin with trimming function unit especially 50,50 ' motion.Because the motion of pin by knitting cam (
) introduce, and trimming function unit 50,50 ' motion introduced by the control cam, so work of these control cams are relevant with knitting cam and synchronous with it.All need be for each knitting cam at the control cam in the withdrawing device 1.In the illustrated embodiment of withdrawing device 1, extraction is dynamic.Functional unit 50,50 ' carries out the motion synchronous with knitting cam on the whole width of knitwear.Now shown in Fig. 3-7 and described the motion flow process of the trimming function unit 50 in the preceding guide plate 2 and the motion flow process of the trimming function unit 50 ' in the opposed rear deflector 3.
That trimming function unit 50,50 ' is in Fig. 3 is initial-extract the position out, promptly be in its extreme higher position.By by axle 9,10 arrow P+, the power that produces of rotatablely moving on P '+direction makes and goes up drawing mechanism and following drawing mechanism 4,5; 4 ', 5 ' mutual extrusion also maintains knitwear 400.The tensile force of choosing for knitting cycle the best on the horizon enters knitwear 400 on the direction of arrow A.This tensile force in knitwear 400 is also to drawing mechanism 4,5; 4 ', 5 ' has applied the power that makes progress.Certainly, drawing mechanism 4,5; 4 ', 5 ' the motion that makes progress is limited during this period, and method is the drawing mechanism of front and the drawing mechanism 4,5 of back; 4 ', 5 ' surface 42,52 abuts on the pole 22,32.
In Fig. 4, trimming function unit 50,50 ' is in extreme lower position.This position is an extreme position, only just uses this position when the knitting needle product have very coarse needle gage and special screen cloth row (Abwurfstrickreihen).For other knitwear, drawing mechanism 4,5; 4 ', 5 ' motion just stops up at a distance.For pressing the knitwear that single system constitutes, before each row begins, can be each row and predesignate extraction power, this extraction power all is changeless for all rows that constitute in identical balladeur train path, but all can import uniquely each row.The following extraction power of predesignating: 50,50 ' before carrying out common motion on the extraction direction D in the trimming function unit, thrust is imported on the hold assembly 6,6 ', this for clamping surface 61,61 ' and knitwear 400 between realize that for the frictional force be necessary, this frictional force is consistent with the extraction power of predesignating.By this extraction power, in knitwear 400, be created in the tensile force that works on the direction of arrow A, this tensile force is necessary for the lopping of the best.Before each new balladeur train path, can increase by the rotation of axle 9,10 or reduce extraction power, thereby be complementary with the jacquard weave of knitwear best.
By to drawing mechanism 4,5; Control cam KD1, the KD2 that 4 ', 5 ' leg 48,58 loads can trimming function unit 50,50 ' take to initial-extract each position within the scope between position and the extreme lower position shown in Figure 4 out.Wherein descend drawing mechanism 5,5 ' can be fixed on this position at least, move against extracting position D out up to their control cams by other.
Under normal circumstances, the loop length that trimming function unit 50,50 ' motion distance are equivalent to produce in the knitting cycle of reality adds idle running, and this idle running is mainly relevant with the material of the connected mode of knitwear and hosiery yarns.But also comparable will lack under normal circumstances in trimming function unit 50,50 ' motion distance.Possible is to can be the tensile force in each knitting cycle minimizing knitwear 400.In case the coil in the current knitting cycle has reached desired size, then trimming function unit 50,50 ' beginning are moved on the direction of arrow D, and trimming function unit 50,50 ' motion finish when the pin of the coil with the row that produces in knitting cycle is positioned at their home position once more at the latest.
Fig. 5 shows with Fig. 4 and is in the locational drawing mechanism 4,5 of equal height; 4 ', 5 '.Last drawing mechanism 4,4 ' controlled cam KS1, the KS2 loading on their leg 49.Go up drawing mechanism 4,4 ' thus and can on direction of arrow O, carry out oscillating motion respectively round pole 22 or 23.Therefore can take off last drawing mechanism 4,4 ' hold assembly 6 from knitwear 400.Tensile force in the knitwear 400 also only keeps by following drawing mechanism 5,5 ' hold assembly 6 ' now.
By control cam KU1, KU2 last drawing mechanism 4,4 ' leg 48 are loaded, take in its extreme higher position thereby can on direction of arrow U, will go up extractor displacer 4,4 '.In this motion process, last drawing mechanism 4,4 ' the controlled always cam KS1 of leg 48, KS2 load.Last drawing mechanism 4,4 ' opening movement and the motion that next moves in its extreme higher position begin when the pin that has constituted coil in knitting cycle is positioned at their home position once more.
Fig. 6 shows drawing mechanism 4,4 ' on the extreme higher position.But they are now once more towards knitwear 400 motions, and use by defeating on knitwear 400 that flexural spring 7,8 produces.Following drawing mechanism 5,5 ' is positioned at its extreme lower position steadily and defeats on knitwear 400 with unconverted.
In Fig. 7, by last drawing mechanism and following drawing mechanism 4,5; 4 ', 5 ' the trimming function unit 50,50 ' that constitutes is on the height and position identical with Fig. 6.But, following drawing mechanism 5,5 ' controlled cam KS3, KS4 loading on its leg 59 now.Therefore down drawing mechanism 5,5 ' is round pole 22 or 23 swing outwardly and take off from knitwear on direction of arrow O.Therefore the zone 400 ' in last drawing mechanism 4,4 ' hold assembly 6 belows of knitwear 400 is no tensile force.But in the knitwear zone above it, nothing exists with reducing and is the essential tensile force of lopping on direction of arrow A, and this can be realized by last drawing mechanism 4,4 '.
Fig. 8 shows knitting cam 500, wherein shows down drawing mechanism and last drawing mechanism 4,5 in the drawings respectively; The beginning of 4 ', 5 ' affiliated motion and end, this is existing the description in Fig. 3-7.
When knitting cam 500 moved on direction of arrow V, the regional NBM between some N1 and the some N4 had marked the knitting needle motion that is used for constituting coil.Regional ABM between some A1, the A5 has marked the extraction campaign of the coil that is used for the coil that constitutes in this row and is used for producing in next row.
At the some N1 place that overlaps with an A1, pin by endure out push before parts (Austriebsteil) 501 obtain moving.Last drawing mechanism 4 by withdrawing device 1,4 ' is with in the tensile force implanting needle fabric, and this tensile force is best for the coil to be constituted of this row.
At a N2 place, pin has reached the position of enduring out farthest, and by limiting part 502 beginning return movements.In the zone between A1 and A2, following drawing mechanism 5,5 ' moves to its extreme higher position (with reference to Fig. 7) simultaneously.At a N3 place, pin returns according to the size of the coil that is constituted by pin hammer 503.Be right after thereafter, will before push moving importing in the pin by enduring out parts 504.Meanwhile, in the zone between an A2 and A3, following drawing mechanism 5,5 ' is towards knitwear swings (Fig. 3).Between A3 and A4, produce extraction power by withdrawing device, this extraction power constitutes tensile force in knitwear, and this tensile force is best for the formation of the coil of next row.Trimming function unit 50,50 ' moves to a position down, and this position and initial-extraction position have the interval of predesignating (Fig. 4).With corresponding to some N4 place of an A4, pin is on its base position.In the zone between an A4 and A5, last drawing mechanism 4,4 ' swings and moves to its extreme higher position from knitwear.After reaching this position, they are once more towards knitwear swings (Fig. 5, Fig. 6).
Fig. 9-12 shows different knitwear.If trimming function unit 50,50 ' move downward and produce extraction power, and this extraction power is realizing best tensile force for lopping in knitwear 400 on the direction of arrow A, then to having constituted trimming function unit 50,50 ' last withdrawing device and following drawing mechanism 4,5; 4 ', 5 ' leg 48,58 loads.This is equivalent to situation shown in Figure 3.
Figure 9 illustrates the knitwear of being made up of knitwear plane 400, it is that pin 300,301 by preceding needle-bar and back needle-bar 200,201 constitutes.Come drawing mechanism 4,5 by control cam KD1, KD2; 4 ', 5 ' leg 48,58 loads, thereby makes withdrawing device and following drawing mechanism 4,5; 4 ', 5 ' and the trimming function unit 50,50 ' of the trimming function unit of front and back motion simultaneously takes place.
Figure 10 illustrates the knitwear of being made up of knitwear plane 400, it is that pin 301 by back needle-bar 201 constitutes.Trimming function unit 50,50 ' motion are consistent with motion shown in Figure 9.
The knitwear of being made up of knitwear plane 400 equally in Figure 11 are that the pin 300 by preceding needle-bar 200 constitutes.Trimming function unit 50,50 ' motion are also consistent with motion shown in Figure 9 at this.
On the contrary, in Figure 12, knitwear are made up of knitwear plane 400 and knitwear plane 401, and described knitwear plane 400 is to constitute by the pin on the preceding needle-bar 200 300, and described knitwear plane 401 is to constitute by the pin on the needle-bar 201 of back 301.
When on the width at knitwear in same sledge movements being two knitwear planes 400,401 when having constituted the row of equal number, trimming function unit 50,50 ' motion are this also consistent with Fig. 9.On the contrary, if only be that a knitwear plane 400,401 has constituted one or more rows, then must extract motion out with the drawing mechanism of knitting plane contact, another drawing mechanism that is oppositely arranged then remains on its extreme higher position.Among the embodiment that illustrates in this figure, be that knitwear plane 400 constitutes row by the pin on the preceding needle-bar 200 300.The drawing mechanism 4,5 of front must move on the direction of arrow D.Therefore the leg 48,58 of the drawing mechanism 4,5 of front obtains loading by control cam KD1.On the contrary, the drawing mechanism 4 ', 5 ' of back must be stayed on its extreme higher position, and KH2 loads leg 48,58 by the control cam, thereby drawing mechanism 4 ', 5 ' is remained on this position.
Claims (14)
1. the knitted fabric take-down device that is used for flat machine, have a plurality of fronts, that be arranged on drawing mechanism (4,5) below the preceding needle-bar (200) and a plurality of back, be arranged on the following drawing mechanism (4 ', 5 ') of back needle-bar (201), wherein said front and the drawing mechanism back (4,5; 4 ', 5 ') be arranged on the both sides in the extraction gap of knitwear (400) opposite one another in paired mode, described knitwear (400) can be clamped between the drawing mechanism described front and the back to the frictional fit connection and can extract out by their, it is characterized in that described drawing mechanism (4,5; 4 ', 5 ') each in can both recline towards described knitwear (400) with the power that can regulate and also can move apart from described knitwear, and each drawing mechanism (4,5; 4 ', 5 ') can both along with against the extraction direction (D) of described knitwear (400) single controllably the motion, wherein single drawing mechanism (4,5; The control of motion 4 ', 5 ') is carried out according to the control that the knitting needle to knitting machine moves.
2. by the described knitted fabric take-down device of claim 1, it is characterized in that a pair of front and the drawing mechanism back (4,5; 4 ', 5 ') motion can synchronously be carried out, perhaps a pair of front and the drawing mechanism back (4,5; 4 ', 5 ') has only a drawing mechanism (4,5 in; 4 ', 5 ') can move.
3. by claim 1 or 2 described knitted fabric take-down devices, it is characterized in that described drawing mechanism (4,5; 4 ', 5 ') each in can both go up the mobile distance that can be scheduled in extraction direction (D), stop on this position and can also next be moved back into initial-extraction position by preset time.
4. by aforementioned claim 1 or 2 described knitted fabric take-down devices, it is characterized in that described knitted fabric take-down device can extend on the whole length of needle-bar (200,201).
5. by the described knitted fabric take-down device of claim 2, it is characterized in that described front and the drawing mechanism back (4,5; 4 ', 5 ') can be in front with the groove of the guide plate back (2,3) in along with move, put liftoff supporting against extracting direction (D) out towards knitwear (400) swing and from knitwear (400).
6. by aforementioned claim 1 or 2 described knitted fabric take-down devices, it is characterized in that described drawing mechanism (4,5; 4 ', 5 ') motion is undertaken by control cam (KD1, KD2, KU1, KU2, KH1, KH2, KS1-KS4), is arranged on described drawing mechanism (4,5; 4 ', 5 ') leg on (48,58,49,59) is embedded in these control cams.
7. by the described knitted fabric take-down device of claim 1, it is characterized in that, be provided with folded drawing mechanism (4,4 ') that be provided with, top of a column weight and the folded drawing mechanism (5,5 ') that be provided with, following of a column weight, wherein said top and following drawing mechanism (4,5; 4 ', 5 ') alternately be arranged on respectively needle-bar (200,201) vertically on.
8. by the described knitted fabric take-down device of claim 7, it is characterized in that above described and following drawing mechanism (4,5; 4 ', 5 ') clamping surface (61,61 ') moulding as follows, that is, this two lists face and following drawing mechanism (4,5; 4 ', 5 ') constitute integral retaining surface (600,600 ') approximate sealing, strip respectively.
9. by claim 7 or 8 described knitted fabric take-down devices, it is characterized in that, drawing mechanism below described (5,5 ') can move to before its initial-extraction position, drawing mechanism (4,4 ') above described moves at first that it is initial-extracts the position out, so knitwear (400) are clamped in the front and the drawing mechanism back (4,5 constantly; 4 ', 5 ') between.
10. by aforementioned claim 1 or 2 described knitted fabric take-down devices, it is characterized in that be provided with spring (7,8), described spring is used to produce described drawing mechanism (4,5; 4 ', 5 ') the thrust towards described knitwear (400), the spring force of wherein said spring (7,8) can be regulated.
11., it is characterized in that described drawing mechanism (4,5 by aforementioned claim 1 or 2 described knitted fabric take-down devices; 4 ', 5 ') linear movement and/or oscillating motion are limited.
12., it is characterized in that described drawing mechanism (4,5 by aforementioned claim 1 or 2 described knitted fabric take-down devices; 4 ', 5 ') can be fixed on it is at least extracting out on the extraction position that reaches after the motion.
13. be used to extract out the method for the knitwear on flat machine, in the method, described knitwear are clamped between the drawing mechanism front and the back and extraction in frictional fit below the needle-bar of described flat machine with connecting, wherein regulate the thrust of described drawing mechanism according to the quality of described knitwear, and in the described drawing mechanism each can both be individually and according to the control of the knitting needle motion of knitting machine along with extraction direction (D) motion against described knitwear.
14., it is characterized in that described knitwear are clamped between the drawing mechanism front and the back constantly by the described method of claim 13.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08011824.3 | 2008-07-01 | ||
| EP20080011824 EP2141271B1 (en) | 2008-07-01 | 2008-07-01 | Flat knitting machine with knitted fabric take-down device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101619519A CN101619519A (en) | 2010-01-06 |
| CN101619519B true CN101619519B (en) | 2011-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101512754A Active CN101619519B (en) | 2008-07-01 | 2009-07-01 | Knitwear take-out device |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2141271B1 (en) |
| CN (1) | CN101619519B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787442A (en) * | 2012-09-04 | 2012-11-21 | 宁波慈星股份有限公司 | Thread hooking device of flat knitting machine |
| CN103526448B (en) * | 2013-11-01 | 2014-12-31 | 宁波慈星股份有限公司 | Hairbrush bracket mechanism in flat knitting machine |
| CN103556381A (en) * | 2013-11-14 | 2014-02-05 | 宁波慈星股份有限公司 | Assembly process for bottom-lifting needle plate of computerized flat knitting machine |
| JP6586367B2 (en) * | 2016-01-05 | 2019-10-02 | リンテック株式会社 | Drawing device and drawing method |
| CN110923933B (en) * | 2019-12-10 | 2023-11-28 | 桐乡市强隆机械有限公司 | Fabric pull-down device for computerized flat knitting machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0216735A1 (en) * | 1985-09-18 | 1987-04-01 | E.M.M. S.r.l. | A device for controlling the vertical tension of the knitted fabric in automatic flat knitting machines |
| EP0523662A1 (en) * | 1991-07-18 | 1993-01-20 | Emm S.R.L. | Device for the vertical stretching of fabric in an automatic knitting machine, in particular flat-bed machine |
| EP0841422A2 (en) * | 1996-11-06 | 1998-05-13 | Shima Seiki Mfg., Ltd. | Knitting fabric take-down device of flat knitting machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2803135C2 (en) | 1978-01-25 | 1986-10-09 | H. Stoll Gmbh & Co, 7410 Reutlingen | Knitted fabric take-off device for flat knitting machines |
-
2008
- 2008-07-01 EP EP20080011824 patent/EP2141271B1/en not_active Not-in-force
-
2009
- 2009-07-01 CN CN2009101512754A patent/CN101619519B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0216735A1 (en) * | 1985-09-18 | 1987-04-01 | E.M.M. S.r.l. | A device for controlling the vertical tension of the knitted fabric in automatic flat knitting machines |
| EP0523662A1 (en) * | 1991-07-18 | 1993-01-20 | Emm S.R.L. | Device for the vertical stretching of fabric in an automatic knitting machine, in particular flat-bed machine |
| EP0841422A2 (en) * | 1996-11-06 | 1998-05-13 | Shima Seiki Mfg., Ltd. | Knitting fabric take-down device of flat knitting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101619519A (en) | 2010-01-06 |
| EP2141271A1 (en) | 2010-01-06 |
| EP2141271B1 (en) | 2011-08-31 |
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