CN101597834B

CN101597834B - Cutter mechanism for clamping and cutting yarn for yarn changing device

Info

Publication number: CN101597834B
Application number: CN2008100533994A
Authority: CN
Inventors: 洪荣豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-03
Filing date: 2008-06-03
Publication date: 2012-02-08
Anticipated expiration: 2028-06-03
Also published as: CN101597834A

Abstract

The invention relates to a cutter mechanism for clamping and cutting yarn for a yarn changing device, which comprises a yarn feeding rod, a sliding piece, a yarn cutter, a yarn clamping sheet and an auxiliary sheet, wherein a yarn cutting opening and a second cutting part are arranged at the bottom end of the yarn feeding rod; the sliding piece is formed by combination of two cover plates, a sliding hole is arranged in the longitudinal direction of the sliding piece and is sleeved on the yarn feeding rod, fixing holes are formed on the two cover plates, and a first protuberant part and a second protuberant part are respectively arranged at both sides of the sliding piece; the yarn cutter is arranged in the sliding hole of the sliding piece, the tail of the yarn cutter protrudes out of the sliding hole for a proper length, the proper position of the tail bends inward, and a first cutting part which is arranged at the bottom edge is butted with the yarn feeding rod; the yarn clamping sheet is arranged between the yarn feeding rod and the auxiliary sheet and is arranged in the sliding hole of the sliding piece, and the tail of the yarn clamping sheet protrudes out of the sliding hole for a proper length; and the auxiliary sheet is arranged outside the yarn clamping sheet and is arranged in the sliding hole of the sliding piece, and the tail of the auxiliary sheet protrudes out of the sliding hole for a proper length. The invention can accurately and easily cut off the yarn which is retracted by hooking to enable the operation to be more stable, thus the service life of the cutter mechanism for clamping and cutting yarn is prolonged.

Description

The Yarn cutter clamping mechanism of yarn changing apparatus

Technical field

The present invention relates to a kind of knitting machine, relate in particular to the certain cut-out yarn of a kind of ability, cutting when making yarn changing, yarn clipping action are more stable, effective, and can improve the Yarn cutter clamping mechanism of the yarn changing apparatus in Yarn cutter clamping service life.

Background technology

General tubular knitting machine when if cloth need be woven with the pattern of different colours, all can install a yarn changing apparatus or color change head additional in the feed place of knitting machine when knitted or woven fabrics; In the braiding process, this device can be in time brings to coloured yarn lets knitting needle hook yarn on the feed, coloured yarn is woven in the lump; Let the pattern effect of cloth after the braiding with secondary color, but, after this above-mentioned coloured yarn is accomplished braiding; It is resetted and in good time cut-out; Just can reach the effect of yarn changing, and how make yarn changing apparatus can do the action of yarn cutting and yarn clipping, normally in yarn changing apparatus, be equiped with the Yarn cutter clamping mechanism of many groups.

Seeing also Fig. 1, is the plane of yarn changing apparatus, and this yarn changing apparatus is installed on the tubular knitting machine, and receives the promotion of the needle selection device and the promotion guide rail of knitting machine, can carry out the hello yarn action of coloured yarn to knitting needle;

This variation yarn device comprises: Weft selecting control portion 1, linkage part 2 and yarn-gripping and yarn-cutting portion 3; Wherein this Weft selecting control portion 1 is provided with a plurality of look pin sheets 11 that select; Respectively select the below of look pin sheet 11 to be provided with driving chip 12, these driving chip 12 1 ends with select look pin sheet 11 to fit, in addition end then combines with double-action plate 13; The upper end of this double-action plate 13 is provided with a link slot to link driving chip 12; The lower end of this double-action plate 13 then is provided with a storage tank, can make one the swing sheet 14 following positioning convex portion be placed in, the last positioning convex portion of this swing sheet 14 then is placed in the groove of yarn pushing piece 15;

This linkage part 2 is provided with a lifter plate 21, and the lower end of this lifter plate 21 is provided with a groove and a trace 22 links, and the bottom then articulates schlagblech 23; And with after an elastic parts 24 combines; Lifter plate 21 is can upper and lower moving type, and this trace 22 is provided with a locating shaft and makes its location, and the protuberance of one of which end is placed in the groove of lifter plate 21; In addition end then articulates and takes off yarn plate 25, and this below of taking off yarn plate 25 is provided with a cross bar 251 and it can be done take off the yarn action;

This yarn-gripping and yarn-cutting portion 3 includes a plurality of Yarn cutter clamping mechanisms that send yarn plate 31 and many groups; These send the upper end of yarn plate 31 and yarn pushing piece 15 to link; And be connected with an elastic parts 32 and it can be done reply action; The lower end then links the yarn feeding bar 33 of geometrical clamp Yarn cutter mechanism, and this Yarn cutter clamping mechanism comprises a yarn feeding bar 33, a sliding part 34, a Yarn cutter 35, a yarn clipping sheet 36 and a supplementary plate 37.

When the needle selection device is accepted the instruction action of yarn changing; Can force color selecting moving pin 4 to press and select look pin sheet 11 in the yarn changing apparatus; And the double-action plate 13 of drive driving chip 12 1 ends up, and the last positioning convex portion of swing sheet 14 is retreated, and this yarn pushing piece 15 promptly is pushed into both allocations by spring 16; Make the promotion guide rail drive the tip 5 that pushes the work forward again and press this yarn pushing piece 15 declines; And can make this that linked send yarn plate 31 and yarn feeding bar 33 to move down, and coloured yarn is brought to let knitting needle hook yarn on the feed, coloured yarn is woven in the lump; And when needing another coloured yarn of conversion to weave; Then this promotion guide rail is promptly removed and is pressed action; Send the yarn plate 31 and the yarn feeding bar 33 of previous coloured yarn are upwards resetted; What make that color selecting moving pin 4 presses that another configures selects look pin sheet 11 again, and with identical operating principle send the yarn plate 31 and the yarn feeding bar 33 of another coloured yarn is moved down, and can carry out the braiding in the lump of another coloured yarn;

At this moment, another tip 5 that pushes the work forward is driven by another promotion guide rail promptly, and the lifter plate 21 that presses in this yarn changing apparatus is descended; And the end and the schlagblech 23 that drive trace 22 descend; Holding in addition and taking off yarn plate 25 and then can rise synchronously of this trace 22 can promote first teat 343 that previous coloured yarn send the sliding part 34 of the Yarn cutter clamping mechanism on the yarn plate 31 when this schlagblech 23 descends, make this sliding part 34 cut off the yarn of institute's uncinate gyrus to getting off; To close this yarn feeding bar 33; Simultaneously, this trace 22 yarn plate 25 that takes off of end in addition rises, and makes pulling this another coloured yarn send second teat 344 of the sliding part 34 of the Yarn cutter clamping mechanism on the yarn plate 31 by its set cross bar 251 in below; Make this sliding part 34 to rising, let this another coloured yarn and knitting needle come to weave in the lump to open this yarn feeding bar 33; So; Can be via the preset promotion track that preestablish and promote guide rail of computer to the needle selection device; Carry out the action of yarn changing; And can make coloured yarn can as the yarn clipping of expection, take off yarn and cut off yarn, and to reach the effect of yarn changing, the pattern effect that lets cloth after the braiding have secondary color.

See also Fig. 2; The Yarn cutter clamping mechanism of known yarn changing apparatus, this yarn feeding bar 63 is to be fixed in to send on the yarn plate 31, its bottom is provided with a yarn cutting mouth 631 and second cut part 632; And be provided with a spacing protuberance 633 in the top of this yarn cutting mouth 631; And make one vertically be provided with sliding eye 641 sliding part 64 be set in this yarn feeding bar 63 so that slide on this yarn feeding bar 63, the both sides of this sliding part 64 are respectively equipped with first teat 643 and second teat 644; Its upper and lower surfaces appropriate location offers fixing hole 642; And be provided with a Yarn cutter 65 in a side of this yarn feeding bar 63, side then is provided with a yarn clipping sheet 66 and a supplementary plate 67 in addition, and this Yarn cutter 65, yarn clipping sheet 66 and supplementary plate 67 all are fixed in the sliding eye 641 of this sliding part 64 and projection rear suitable length outside this sliding eye 641; And the tail end of this yarn clipping sheet 66 is to bend inwards to be resisted against this yarn feeding bar 63 with its root edge; Therefore can make this yarn feeding bar 63 fit in this Yarn cutter 65 by the elasticity of this yarn clipping sheet 66, move down when making the yarn that cuts off institute's uncinate gyrus promoting this sliding part 64, be cooperating by second cut part 632 of first cut part 652 of these Yarn cutter 65 root edges and these yarn feeding bar 63 bottoms; Cut off yarn to produce suitable shearing force, be beneficial to the follow-up yarn that changes and move.

And the Yarn cutter clamping mechanism of above-mentioned known yarn changing apparatus is because its Yarn cutter 65 is to be straight abundant tabular; Do not have elasticity, the elastic force that therefore can only depend merely on yarn clipping sheet 66 forces this yarn feeding bar 63 and this Yarn cutter 65 to be fitted and the generation shearing force, and so this yarn clipping sheet 66 promptly can produce the phenomenon of elastic fatigue through long-term use; Add the wearing and tearing of 632 of second cut parts of first cut part 652 and this yarn feeding bar 63 of this Yarn cutter 65, make shearing force reduce, and can't accurately the yarn of uncinate gyrus be cut off; Cause the instability in the operation, and the upper limb of the spacing protuberance 633 of these yarn feeding bar 63 yarn cutting mouths 631 tops, be to be made as flat; After yarn cutting is moved for a long time; Meeting accumulation yarn hair also is jammed in the sliding eye 641 of this sliding part 64, and the action of this sliding part 64 is comparatively had some setbacks, even can block and can't move; Therefore essential regular replacing, very undesirable.

Summary of the invention

Technical problem underlying to be solved by this invention is, overcomes the above-mentioned defective that prior art exists, and a kind of Yarn cutter clamping mechanism of yarn changing apparatus is provided; Can when the operation of doing yarn changing, can cut off the yarn of institute's uncinate gyrus accurately, easily, make operation comparatively stable; And the yarn hair that is produced during removing yarn cutting that can be natural; Can not accumulate and stop up, avoid regular maintenance and replacing, thereby improve the service life of Yarn cutter clamping mechanism.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of Yarn cutter clamping mechanism of yarn changing apparatus is characterized in that, comprising: a yarn feeding bar, bottom are provided with a yarn cutting mouth and second cut part, and are provided with a spacing protuberance in the top of this yarn cutting mouth; One sliding part is with two cover plates combinations, vertically is provided with a sliding eye and is sheathed on this yarn feeding bar, and on this two cover plate, offer fixing hole, and the both sides of this sliding part are respectively equipped with first teat and second teat; One Yarn cutter, be located in the sliding eye of this sliding part and projection rear suitable length outside this sliding eye, bend inwards in the tail end appropriate position, and make the first set cut part of root edge be resisted against this yarn feeding bar; One yarn clipping sheet is to be located between this yarn feeding bar and this supplementary plate, and be installed in the sliding eye of this sliding part and projection rear suitable length outside this sliding eye, it bends inwards in the tail end appropriate position and makes root edge be resisted against this yarn feeding bar; One supplementary plate is the outside of being located at this yarn clipping sheet, and be installed in the sliding eye of this sliding part and projection rear suitable length outside this sliding eye.

The Yarn cutter clamping mechanism of aforesaid yarn changing apparatus, the spacing protuberance of the yarn cutting mouth of yarn feeding bar top wherein, its top is to be made as semicircle shape.

The Yarn cutter clamping mechanism of aforesaid yarn changing apparatus, wherein the stage casing of Yarn cutter is provided with the different end difference of width.

The Yarn cutter clamping mechanism of aforesaid yarn changing apparatus, wherein the root edge of yarn clipping sheet is provided with a groove and is resisted against this yarn feeding bar.

The invention has the beneficial effects as follows; Can when the operation of doing yarn changing, can cut off the yarn of institute's uncinate gyrus accurately, easily, make operation comparatively stable; And the yarn hair that is produced during removing yarn cutting that can be natural; Can not accumulate and stop up, avoid regular maintenance and replacing, thereby improve the service life of Yarn cutter clamping mechanism.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further specified.

Fig. 1 is the floor map of yarn changing apparatus of the present invention.

Fig. 2 is the schematic perspective view of known Yarn cutter clamping mechanism.

Fig. 3 is the schematic perspective view of Yarn cutter clamping of the present invention mechanism.

Fig. 4 is the perspective exploded view of Yarn cutter clamping of the present invention mechanism.

Fig. 5 is the action sketch map of Yarn cutter clamping of the present invention mechanism.

Description of reference numerals:

1-Weft selecting control portion 11-selects look pin sheet 12-driving chip

13-double-action plate 14-swing sheet 15-yarn pushing piece

16-spring 2-linkage part 21-lifter plate

22-trace 23-schlagblech 24-elastic parts

25-takes off yarn plate 251-cross bar 3-yarn-gripping and yarn-cutting portion

31-send yarn plate 32-elastic parts 33-yarn feeding bar

The spacing protuberance of the 331-yarn cutting mouth 332-second cut part 333-

34-sliding part 341-sliding eye 342-fixing hole

The 343-first teat 344-second teat 35-Yarn cutter

The 351-end difference 352-first cut part 36-yarn clipping sheet

361-groove 37-supplementary plate 4-color selecting moving pin

The 5-tip 63-yarn feeding bar 631-yarn cutting mouth that pushes the work forward

The spacing protuberance 64-of 632-second cut part 633-sliding part

641-sliding eye 642-fixing hole 643-first teat

The 644-second teat 65-Yarn cutter 652-first cut part

66-yarn clipping sheet 67-supplementary plate 7-yarn

The specific embodiment

See also Fig. 1,3,4; The Yarn cutter clamping mechanism of yarn changing apparatus of the present invention mainly comprises a yarn feeding bar 33, a sliding part 34, a Yarn cutter 35, a yarn clipping sheet 36 and a supplementary plate 37, and makes fixedly connected the sending on the yarn plate 31 in this yarn changing apparatus in upper part of this yarn feeding bar 33; Wherein the bottom of this yarn feeding bar 33 is provided with a yarn cutting 331 and second cut part 332; And be provided with the spacing protuberance 333 of a top semicircular in shape in the top of this yarn cutting mouth 331, and this sliding part 34 is with two cover plates combinations, vertically is provided with a sliding eye 341 and is sheathed on this yarn feeding bar 33; So that slide on this yarn feeding bar 33; And on this two cover plate, offer fixing hole 342, and be respectively equipped with first teat 343 and second teat 344, and a side of this yarn feeding bar 33 is provided with a Yarn cutter 35 in the both sides of this sliding part 34; Side then is provided with a yarn clipping sheet 36 and a supplementary plate 37 in addition; And after making this Yarn cutter 35, yarn clipping sheet 36 and supplementary plate 37 in the sliding eye that penetrates this sliding part 34 341, be fixed in the fixing hole 342 of this sliding part 34, and projection rear suitable length is outside this sliding eye 341; Wherein this Yarn cutter 35 is to be provided with the different end difference of width 351 in its middle section position; And bend inwards in the tail end appropriate position and be resisted against this yarn feeding bar 33, and this yarn clipping sheet 36 is to be located between this yarn feeding bar 33 and this supplementary plate 37, bend inwards in the tail end appropriate position and make the set groove of root edge 361 be resisted against this yarn feeding bar 33 with the first set cut part 352 of root edge.

By aforesaid member, see also Fig. 5, the stage casing of this Yarn cutter 35 is provided with the different end difference of width 351; And bend inwards in the tail end appropriate position; Can provide Yarn cutter 35 bigger elasticity to let the first set cut part 352 of root edge be resisted against this yarn feeding bar 33,, cooperate when this sliding part 34 moves down with second cut part 332 of this yarn feeding bar 33 can improve shearing force; Can cut off yarn easily; And this yarn clipping sheet 36 is provided with a groove 361 and is resisted against this yarn feeding bar 33 in root edge, can make when yarn changing, more can accurately keep off cut yarn reset do cut, the action of yarn clipping, can not slip up.

Be worth mentioning, the set spacing protuberance 333 in yarn cutting mouth 331 tops of this yarn feeding bar 33, its top is to be made as semicircle shape; The yarn hair that is produced in the time of can making yarn cutting drops naturally; Can not accumulate in the sliding eye 341 that is jammed in this sliding part 34, and cause having some setbacks of action, therefore; Above-described Yarn cutter clamping mechanism makes it when action; Can cut off the yarn of institute's uncinate gyrus accurately, easily, can improve the shortcoming of essential running maintenance of prior art and replacing really, and can improve the service life of Yarn cutter clamping mechanism.

The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.

Claims

1. the Yarn cutter clamping mechanism of a yarn changing apparatus is characterized in that, comprising:

One yarn feeding bar, bottom are provided with a yarn cutting mouth and second cut part, and are provided with a spacing protuberance in the top of this yarn cutting mouth;

One sliding part is with two cover plates combinations, vertically is provided with a sliding eye and is sheathed on this yarn feeding bar, and on this two cover plate, offer fixing hole, and the both sides of this sliding part are respectively equipped with first teat and second teat;

One Yarn cutter (65); Be be located in the sliding eye of this sliding part and projection rear suitable length outside this sliding eye; The tail end appropriate position of Yarn cutter bends inwards; The middle section position of Yarn cutter is provided with the different end difference of width (351), can make set first cut part (352) of root edge be resisted against this yarn feeding bar (33);

One yarn clipping sheet is to be located between this yarn feeding bar and this supplementary plate, and be installed in the sliding eye of this sliding part and projection rear suitable length outside this sliding eye, it bends inwards in the tail end appropriate position and makes root edge be resisted against this yarn feeding bar;

One supplementary plate is the outside of being located at this yarn clipping sheet, and be installed in the sliding eye of this sliding part and projection rear suitable length outside this sliding eye;

The spacing protuberance of the yarn cutting mouth top of said yarn feeding bar, its top is to be made as semicircle shape.

2. the Yarn cutter clamping mechanism of yarn changing apparatus according to claim 1, it is characterized in that: the root edge of said yarn clipping sheet is provided with a groove and is resisted against this yarn feeding bar.