TWI726304B - Mechanism for the transfer of stitches from the needles of knitting machine and sewing - Google Patents

Abstract

A mechanism for the transfer of stitches from the needles of knitting machine and sewing .The invention relates to the elements that ensure transfer of a textile material such as a sock from the knitting needles after being knitted in the knitting machine and the elements in the station where the open end of the textile material is sewn off.

Description

The mechanism of transferring stitches from the needles of the knitting machine and sewing

The present invention is an improvement of the mechanism described in the patent number EP2377979. More specifically, it relates to the element used to ensure the transfer of textile materials such as socks from the needles after being knitted in the knitting machine, and the open end of the textile material Components of the stitching station.

Tubular textiles such as socks are made by knitting in a circular knitting machine. Then, one end of the textile with two open ends is removed from the knitting needle of the circular knitting machine and brought to the toe stitching station for stitching therein. The transfer of the tubular textile from the circular knitting machine to the toe stitching station, for example, can be performed by the automatic mechanism described in the patent number EP2377979.

As described in patent EP2377979, when the knitting process in the knitting machine is completed, the stitches of the last row of knitting needles are removed from the knitting needles one by one through the transfer element and the sheet element, and transferred to a toe far away from the knitting needle. Sewing station knitting needles.

The transfer element described in the patent number EP2377979 (as shown in Figures 31 to 38) includes a front opening 1e, and the hook of the knitting needle is inserted into the front opening before the stitch is transferred. To ensure this, the width of the front opening should have a certain thickness. Otherwise, the hook of the knitting needle cannot be inserted into the transfer element. Such a structure requires more precise positioning control between the transfer element and the knitting needle. However, it will lead to disadvantages, such as the need to use a thicker transfer element than the required thickness, thereby increasing the force for moving heavier masses and cost. In addition, the transfer part described in the patent number EP2377979 includes a material filler for attaching the hooks of the knitting needles at the farthest end, and it is difficult and expensive to produce such complex geometric shapes.

On the other hand, the toe suture station where the coil is transported by the transfer element mainly has a circular structure, one half of which can be turned 180 degrees to open and close relative to the other half. One half circle includes a different number of female teeth along the semicircle, the female teeth protrudingly arranged along the semicircle, and the other half circle includes the same number of male teeth as the female teeth, the male teeth protruding along the semicircle in the same manner.

When the half circle is closed relative to the other half circle, the consistency of the shape is ensured between the male tooth and the female tooth. In the next step of closing the half circle on the other half circle, the loops in the half circle will be close to the loops in the other half circle, so that the loops can be sewn and the ends of the textile material can be sewn.

As disclosed in the above application, usually the semicircle carrying the female tooth can be closed (and opened) on the semicircle carrying the male tooth, and the coil on the female tooth can be close to the coil in the male tooth. Therefore, when the loops that are close to each other are located on the male tooth, the toe suture procedure, that is, the suture procedure, is performed. Therefore, the male teeth should have a specific shape. Because the sewing needle should be very close to the pair of stitches that are close to each other; otherwise, the sewing process when the stitches are close to each other will not be able to sew. All in all, the male tooth should have a running gap at the place where the loop is loaded, so that the sewing needle can enter and leave the paired loops. The gap can be EP2377979 (as shown in Figure 30) or EP0942086 (as shown in Figures 76A and 76B). Shown) in the form of U-shaped or V-shaped channels. However, for example, when the loop pair is relatively stretched, these known forms sometimes prevent the knitting needle from finding an appropriate running gap, and may cause the seam to be incorrectly formed, or even break the sewing needle. FIG. 30 shows a top view showing the V-shaped channel structure 515b, the coil 73 and the sewing needle 80 in the known art.

Even if the toe suture procedure (suturing procedure) is actually performed on the male teeth, theoretically, the semicircle carrying the male teeth can be closed on the semicircle carrying the female teeth, and the female teeth can be configured as, for example, U- and V-shaped configurations are used for sewing as described above. All in all, the stitch structure of the stitched (ie toe stitching procedure) has, for example, a U-shape or a V-shape.

One of the objectives of the present invention is to provide high-efficiency transfer of textile material loops with self-knitting needles, which are warp-knitted in tubular form.

One of the objects of the present invention is to provide highly efficient sewing by transferring stitches.

To achieve these objectives, the present invention relates to a mechanism composed of a knitting machine with several knitting needles, each of which has a needle hook and a needle tongue, which can be approached and moved away from the needle hook through rotation; The element conveys the loops of each knitting needle to a sewing station, which can approach and move away from the knitting needles, and move them along the needle axis by touching the loops of each knitting needle and the transfer device containing the transfer element. The transfer element can approach and stay away from the hook of the knitting needle. When the sheet element moves the loop toward the hook in the knitting needle, the loop is driven on the transfer element.

Here, each transfer element is set to at least partially clamp an outer surface of the hook of each knitting needle, and each transfer element includes an end portion, and when the needle tongue is closed for the stitch transfer, the end portion is set to maintain the Between the body of the knitting needle and the hook.

In addition, according to the mechanism of the present invention, the first longitudinal tooth portion with the stitched stitch pair conveyed by the transfer device at the sewing station has a substantially L-shaped cross section.

In this detailed description, only examples are used to describe the mechanism objects of the present invention, which do not impose any limitation on a better understanding of the present invention.

The present invention relates to a mechanism for ensuring transfer, especially a mechanism for transferring socks from a knitting machine to a toe sewing station.

As described in the patent number EP2377979, when the knitting process of the sock is completed in the sock making machine, the toe of the sock is open, and the last stitch 73 on the toe is still on the knitting needle 10 of the knitting machine. Different numbers of sheet elements 31 and transfer elements 41 are used to stitch the toes of the sock as described in Patent No. EP2377979. These components are chucks (not shown in the figure) that are opposite to each other and are arranged face to face on both sides.

FIGS. 1 to 8 show how to gradually remove the last stitch 73 still on the knitting needle 10 through the sheet member 31 and the transfer member 41. The steps of the above procedure are essentially described in patent number EP2377979. In other words, the transfer element 41 is pushed close to the hook 11 of the knitting needle 10 by the transfer driving end 43, and pushed again by the peeling driving end 33, so that the sheet element 31 first grabs the top of the loop 73 and then moves down , So that it is unhooked from the tongue 12 of the knitting needle 10.

In the present invention, the bottom of the transfer element 41 includes an arc, which is consistent with the outer surface of the needle hook 11, and is clamped to be positioned on the outer surface of the needle hook 11, so that when the transfer element 41 is close to the needle hook 11 When the loop 73 is transferred, the outer surface of the hook 11 can be better covered. The above-mentioned arc at the bottom of each transfer element 41 is preferably configured to mainly cover the top and outer front surface area of each hook.

The transfer end 42 of the transfer element 41 is located in front of the hook 11 to partially cover the tail end of the hook 11 from the outside, so that when the transfer element 41 approaches the hook 11 to transfer the loop 73, the transfer end 42 is maintained at Slightly lower than one of the open ends of the hook.

The transfer end 42 of the transfer element 41 may preferably include a curved form toward the main body of the knitting needle 10. In this way, when the tongue 12 of the knitting needle 10 is closed in the next step (see FIG. 17), the loop 73 can be transferred in a relatively safe manner.

As shown in Fig. 3, the coil 73 is moved downward by the pressure exerted by the peeling end 32, and after the coil 73 is unhooked from the tongue 12, the sheet member 31 slightly returns; again, as shown in Fig. 5, it moves forward and automatically The bottom grabs the coil 73. In the next step, as shown in Figure 6, it moves the coil 73 upwards, and at the same time the latch 12 is closed. In this case, the transfer end 42 is maintained between the hook 11 and the tongue 12. When the sheet element 31 moves up further, each coil 73 is transferred to the corresponding transfer element 41

In the next step, as shown in FIG. 8, the transfer element 41 and the sheet element 31 move away from the knitting needle together and move to the sewing station of the toe stitching process.

As shown in FIG. 18, after the transfer element 41 and the sheet element 31 are positioned below the jaw unit 50, they are moved up to as shown in FIG. 19, and are fitted around the jaw unit 50 at 360-degree intervals. The first longitudinal tooth portion and the second longitudinal tooth portion. In this embodiment, the first longitudinal tooth portion is a male tooth 511 and the second longitudinal tooth portion is a female tooth 521. The male tooth 511 is fastened to the corresponding jaw through the male fixing part 512 extending inwardly thereon, and the female tooth 521 is fixed to the corresponding jaw part through the female fixing part 522 extending inwardly thereon in a similar manner.

9 to 12 show the steps of transferring the coil 73 to a male tooth 511. Each transfer element 41 includes a transfer low-bottom body 45 that slightly protrudes from the vertically extending body, and has a transfer channel 44 shaped like a U. When the transfer element 41 and the sheet element 31 move up together, the male teeth 511 and the female teeth 521 are inserted into the transfer channels 44, and the coil 73 is released to the male extension 513 of the male tooth 511 and the female tooth 521. Female extension 523. Thereafter, the transfer element 41 and the sheet element 31 are far away from the male teeth 511 and the female teeth 521. The male tooth 511 has a convex end 515 and the female tooth 521 has a groove 524 at one end.

As shown in FIG. 28, each transfer element 41 includes a plate body 46, and the transfer low-bottom body 45 is slightly protruding at the bottom of the plate body 46. Wherein, the transfer low-bottom body 45 has a transfer channel 44 to form a first side plate 451, a second side plate 452, and a connecting plate 453. The first side plate 451 and the second side plate 452 are parallel to each other and are arranged at intervals to connect The two sides of the plate 453 are connected to the first side plate 451 and the second side plate 452 respectively. In this embodiment, the end of the first side plate 451 away from the plate body 46 has a first inclined surface portion 454, the second side plate 452 has a second inclined surface portion 455 formed corresponding to the first inclined surface portion 454, the first inclined surface portion 454 and the second inclined surface portion 454 The two inclined surfaces 455 are respectively inclined backward and downward on the side with the transfer channel 44, and the first inclined surface portion 454 and the second inclined surface portion 455 are symmetrical in shape. The first inclined surface portion 454 and the second inclined surface portion 455 constitute a part of the arc at the bottom of the transfer element 41, and can cover the outer surface of the needle hook 11 in accordance with the curved form of the transfer end 42.

The plate 46 has a transfer driving end 43, a body 461 and an extension 462. The transfer driving end 43 extends upward from the rear end of the body 461, and the extension 462 is away from the transfer driving end 43 from the body 461. The front end of the extension part 462 extends downward, the bottom end of the extension part 462 is connected with the transfer low bottom body 45, the transfer driving end 43 is formed on the side away from the body 461 with a concave arc groove 463, and the outside of the extension part 462 forms a third The inclined surface portion 464 and the inner side of the extension portion 462 form a fourth inclined surface portion 465, and an inclined shoulder portion 466 is formed adjacent to the junction of the extension portion 462 and the transfer low bottom body 45.

As shown in FIG. 23, the jaw unit 50 includes two semicircles, one of which is a fixed jaw 51 and the other is a movable jaw 52. According to a preferred embodiment, the movable jaw 52 carrying the female tooth 521 can be closed on the fixed jaw 51 carrying the male tooth 511 and opened by a 180 degree rotation. As shown in FIG. 23, when the movable jaw 52 is closed on the fixed jaw 51, the convex end 515 of the male tooth 511 is inserted into the end slot 524 of the female tooth 521 (as shown in FIG. 14A) to smoothly transfer the coil 73 Between the male tooth 511 and the female tooth 521 without jamming. Afterwards, as shown in FIG. 24, the transfer element 41 and the sheet element 31 move upward, pushing the coil 73 of the female tooth 521 upward so that it abuts the coil 73 carried by the male tooth 511, and then moves away from the jaw unit 50 .

In the next step, the movable jaw 52 is opened and returned to the initial position, the sewing needle 80 sews the loops 73 on the male teeth 511 thereafter, and sews the open end of the textile material.

As shown in this specification, the tooth part where the coil 73 is fitted for sewing, that is, the cross section of the male tooth 511, is substantially L-shaped. Therefore, as shown in FIG. 29, the male tooth 511 includes a side extension portion 514 that substantially extends vertically from the male extension portion 513 extending vertically.

10‧‧‧Knitting needles 11‧‧‧Hook 12‧‧‧Needle 31‧‧‧chip components 32‧‧‧Peeling end 33‧‧‧Peel off the drive end 41‧‧‧Transfer components 42‧‧‧Transfer terminal 43‧‧‧Transfer drive end 44‧‧‧Transfer Channel 45‧‧‧Transfer low bottom body 451‧‧‧First side panel 452‧‧‧Second side panel 453‧‧‧Connecting board 454‧‧‧First oblique face 455‧‧‧Second oblique face 46‧‧‧Plate body 461‧‧‧Body 462‧‧‧Extension 463‧‧‧Concave arc slot 464‧‧‧Third oblique face 465‧‧‧Fourth oblique face 466‧‧‧Sloping shoulders 50‧‧‧Jaw Unit 51‧‧‧Fixed jaw 511‧‧‧Male tooth 512‧‧‧Male fixed part 513‧‧‧Male Extension 514‧‧‧Side extension 515‧‧‧Protruding end 52‧‧‧Movable jaw 521‧‧‧Female tooth 522‧‧‧Female fixed part 523‧‧‧Female extension 524‧‧‧End Slot 73‧‧‧Coil 80‧‧‧Sewing needle 515b‧‧‧V-shaped channel structure

Fig. 1 is a representative isometric side projection view showing when the sheet element starts to push the coil down in the mechanism of the present invention. Fig. 2 is a side projection view of a representative isometric axis when the sheet element pushes the coil down in the mechanism of the present invention. Fig. 3 is a representative isometric axis side projection view showing when the chip element is far away from the coil in the mechanism of the present invention. Fig. 4 is a representative isometric axis side projection view showing when the sheet element starts to move downward in the mechanism of the present invention. Fig. 5 is a representative isometric side projection view showing when the chip element is close to the coil and grasping the coil from the bottom in the mechanism of the present invention. Fig. 6 is a side projection view of a representative isometric axis showing when the sheet element pushes the coil upward in the mechanism of the present invention. Fig. 7 is a representative isometric axis side projection view showing when the sheet element is completely unhooked from the coil in the mechanism of the present invention. Fig. 8 is a side projection view of a representative isometric axis showing when the sheet element and the transfer element are far away from the knitting needle in the mechanism of the present invention. Fig. 9 is a side projection view showing a representative isometric axis when the coil is driven to the sewing station in the mechanism of the present invention. Fig. 10 is a representative isometric axial side projection view showing the mechanism of the present invention, through the peeling and shifting element moving upward, when the coil is fitted to the teeth at the sewing station. FIG. 11 is a side projection view of a representative isometric axis when the transfer element moves upward and away from the tooth part in the mechanism of the present invention. Fig. 12 is a side projection view showing a representative isometric axis when the transfer element moves away from the tooth part through the radial direction in the mechanism of the present invention. Fig. 13 is a representative isometric axial side projection view showing when a half circle is closed to another half circle in the mechanism of the present invention, and the chip element grabs the coil from the bottom in the closed half circle. Fig. 14 is a representative isometric axial side projection view showing when the coil-to-receiver element is arranged side by side on the semicircular tooth part in the mechanism of the present invention. Fig. 14A is a partial enlarged view of Fig. 14 where the end of the male tooth is inserted into the end groove of the female tooth. Fig. 15 is a side projection view of a representative isometric axis showing when the loop is stitched in the mechanism of the present invention. Fig. 16 is a front view showing a view before the coil transfer is performed. Figure 17 is a front view of Figure 6; Fig. 18 is a front view showing that the sheet receiving element and the transfer element are nested on the teeth of the sewing station after the loop is transferred from the knitting needle. Fig. 19 is a front view showing that the coil is peeled off and the transfer element is fitted on the teeth of the sewing station. Fig. 20 is a front view showing when the transfer element is moved upward and away from the tooth after the loop is fitted over the loop of the sewing station. Fig. 21 is a front view showing when the transfer element moves away from the tooth part through the radial direction after the loop is fitted over the stitch of the sewing station. Fig. 22 is a front view showing that the sheet element and the transfer element are moved downward away from the tooth part. Figure 23 is a front view showing when one half circle is closed to the other half circle in the mechanism of the present invention. Fig. 24 is a front view showing the mechanism of the present invention when the coil pair is arranged on the semicircular tooth part through the sheet element. Figure 25 is a front view showing when the sheet element and the transfer element are far away from the sewing station in the mechanism of the present invention. Fig. 26 is a front view showing that the semicircle transfers the coil to the tooth part of the other semicircle, and then returns to the initial position (open). Fig. 27 is a front view showing when the stitch pair is sewn in the mechanism of the present invention. Fig. 28 is a diagram showing the structure of the transfer element. Fig. 29 is a cross-sectional view showing a male tooth with stitches and sewing needles. Fig. 30 is a cross-sectional view showing a prior art male tooth with stitches and sewing needles.

10‧‧‧Knitting needles

11‧‧‧Hook

12‧‧‧Needle

31‧‧‧chip components

32‧‧‧Peeling end

33‧‧‧Peel off the drive end

41‧‧‧Transfer components

42‧‧‧Transfer terminal

73‧‧‧Coil

Claims (13)

A mechanism for transferring stitches from knitting needles of a knitting machine, comprising: a knitting machine, the knitting machine has a plurality of knitting needles, each of the knitting needles has a hook and a needle tongue, the needle tongue can be approached and moved away by rotating The needle hook; a plurality of sheet elements to transport the loops in each of the knitting needles to a sewing station, the sheet elements can approach and move away from the knitting needles by touching the loops in each of the knitting needles And move the sheet elements along a needle axis; and a transfer device, which includes a plurality of transfer elements, the transfer elements can approach and be far away from the hooks of the knitting needles, when the sheet elements are the same When the loops in the knitting needles move toward the hooks, each transfer element has a transfer end, and the loop is brought to the transfer end; and it is characterized in that each transfer element is configured to at least partially Ground clamps an outer surface of the hook of each of the knitting needles, and each of the transfer elements includes the transfer end. When the needle tongue is closed for the stitch transfer, the transfer end is configured to remain on the Between the body of the knitting needle and the hook, the transfer end of each transfer element is located in front of each hook to partially cover the tail end of the hook from the outside, and the transfer elements are close to the needles When hooking for loop transfer, the transfer end is maintained at a position slightly lower than an open end of the needle hook. The mechanism for transferring stitches from the needles of a knitting machine as described in claim 1, characterized in that the bottom of each transfer element is an arc, which is arranged to mainly cover the top and outer front of each hook Surface area. The mechanism for transferring stitches from the knitting needle of a knitting machine according to claim 1, wherein the transfer end of each transfer element includes an arc toward the body of the knitting needle. The mechanism for transferring stitches from the knitting needles of a knitting machine as described in claim 3, characterized in that each of the transfer elements includes a plate and a transfer low-bottom body, and the transfer low-bottom body is at the bottom of the board and slightly It protrudes, and the transfer low-bottom body has a transfer channel shaped like a U. The mechanism for transferring stitches from knitting needles of a knitting machine as described in claim 4, characterized in that the transfer low bottom body has the transfer channel to form a first side plate, a second side plate, and a connecting plate. The one side plate and the second side plate are parallel to each other and arranged at intervals, and the two sides of the connecting plate are respectively connected with the first side plate and the second side plate. The mechanism for transferring stitches from the knitting needles of a knitting machine as described in claim 5, characterized in that the first side plate has a first inclined surface at one end away from the board, and the second side board has a corresponding first inclined surface The second inclined surface is formed, the first inclined surface and the second inclined surface are respectively inclined backward and downward on the side with the transfer channel, and the first inclined surface and the second inclined surface are the arc-shaped parts. The mechanism for transferring stitches from the needles of a knitting machine as described in claim 6, wherein the plate has a transfer driving end, a body, and an extension, and the transfer driving end is from the back of the body. The extension part extends downward from the front end of the body away from the transfer driving end, the bottom end of the extension part is connected with the transfer low bottom body, and the transfer driving end is away from a part of the body part. A concave arc groove is formed on the side, a third inclined surface is formed on the outside of the extension portion, a fourth inclined surface is formed on the inside of the extension portion, and an inclined shoulder is formed adjacent to the junction of the extension portion and the transfer low bottom body , The oblique shoulder part is on the side with the connecting plate. A sewing station mechanism for transferring loops from knitting needles of a knitting machine is used to sew the open end of a textile material woven into a tube at a sewing station, which comprises: a first semicircle, the first semicircle having plural numbers First longitudinal teeth, the number of the first longitudinal teeth is half the number of the last row of coils at the open end of the textile material; and A second semicircle, including a plurality of second longitudinal teeth, the number of the second longitudinal teeth is half the number of the last row of coils, and can be rotated 180 degrees to approach and away from the first semicircle First longitudinal teeth; and is characterized in that the first longitudinal teeth with a stitched pair of stitches conveyed by a transfer device at the sewing station are substantially L-shaped in cross section, and The first longitudinal teeth are male teeth. The sewing station mechanism for transferring stitches from the needles of a knitting machine as described in claim 8, wherein a sewing process is performed on the first longitudinal teeth of the fixed first semicircle. The sewing station mechanism for transferring stitches from the needle of a knitting machine as described in claim 8, characterized in that the male teeth include a male extension extending vertically and a side extension, and the side extension is basically The upper part extends from the male extension. The sewing station mechanism for transferring stitches from the needles of a knitting machine as described in claim 8, characterized in that the second longitudinal teeth are female teeth. The sewing station mechanism for transferring stitches from the needles of a knitting machine as described in claim 11, characterized in that the male teeth have inwardly extending male fixing parts, and have a vertically extending male extension part, and have A convex end; the female teeth have a female fixing part extending inward, and a female extension part extending vertically, and a groove at one end. When the male teeth are close to the female teeth, the convex of the male teeth The ends are inserted into the end slots of the female teeth to smoothly transfer the coils between the male teeth and the female teeth. The sewing station mechanism for transferring stitches from the needles of a knitting machine according to claim 12, characterized in that one of the first semicircle and the second semicircle is a fixed jaw, and the other is a movable jaw Part, the movable jaw part carries the female teeth, the fixed jaw part carries the male teeth, the movable jaw The part rotates 180 degrees to close on the fixed jaw part, so that the convex ends of the male teeth are inserted into the end grooves of the female teeth.

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