TW202009336A - 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

Transferring stitches from the knitting needles of the knitting machine and the mechanism of sewing

The present invention is an improvement of the mechanism described in the patent EP 2377979. More specifically, it relates to an element used to ensure that textile materials such as socks are transferred from knitting needles after knitting in a knitting machine, and to open ends of textile materials Components of the sewing 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 sewing station, where it is sewn. The transfer of the tubular textile from the circular knitting machine to the toe stitching station can be performed, for example, by the automatic mechanism described in Patent No. EP2377979.

As described in patent EP2377979, when the hosiery procedure in the knitting machine is completed, the last row of needle loops is removed from the knitting needle one by one through the transfer element and the sheet element, and transferred to a toe away from the position of the knitting needle Department of sewing needles.

The transfer element described in Patent No. EP2377979 (as shown in FIGS. 31 to 38) includes a front opening 1e, and the hook of the knitting needle is inserted into the front opening before the stitch transfer. 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 cause disadvantages such as the need to use a transfer element thicker than the required thickness, thereby increasing the use of heavier mass movements and cost. In addition, the transfer part described in the patent number EP2377979 includes a material filler for attaching the hook of the knitting needle at the farthest end, and it is difficult and expensive to produce such a complicated geometry.

On the other hand, the toe stitching station where the transfer element transports the coil to that place mainly consists of a circular structure, one of which can be turned 180 degrees and opened and closed relative to the other half. A semicircle contains a different number of female teeth along the semicircle, and the other semicircle contains the same number of male teeth as the female tooth, and the male teeth are arranged along the semicircle in the same manner.

When the half circle is closed relative to the other half circle, the consistency of the pattern is ensured between the male and female teeth. In the next step where the half circle is closed on the other half circle, the stitches in the half circle will be close to the stitches in the other half circle, so that the stitches can be sewn and the ends of the textile material can be stitched.

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

Even if the toe stitching procedure (stitching procedure) is actually performed on the male teeth, in theory, the semicircle carrying the male teeth can be closed on the semicircle carrying the female teeth, and the female teeth can be configured as The U and V shapes are constructed to be used for sewing as described above. In summary, the stitch-to-sew (i.e. toe stitch procedure) tooth structure has, for example, a U-shape or a V-shape.

One of the objects of the present invention is to provide efficient transfer of textile material loops from knitting needles, which are knitted in a tubular form.

One of the objects of the present invention is to provide efficient sewing through transfer stitches.

To achieve these objectives, the present invention relates to a mechanism composed of a knitting machine having several knitting needles, each of which has a hook and a tongue, which can be approached and separated from the hook by rotation; Element, the stitches of each knitting needle are transported to a sewing station, which can be approached to and away from the knitting needle, and by touching each knitting needle and the stitch in the transfer device containing the transfer element, it is moved along the needle axis, etc. The transfer element can be close to and away from the hook of the knitting needle. When the sheet element moves the stitch toward the hook in the knitting needle, the stitch is driven on the transfer element.

Here, each transfer element is configured to at least partially clamp one of the outer surfaces of the hooks of each knitting needle, and each transfer element includes an end portion, which is provided to maintain the end when the needle tongue is closed for stitch transfer Between the body of the knitting needle and the hook.

In addition, according to the mechanism of the present invention, the sewing station has the first longitudinal tooth portion of the pair of stitches transferred by the transfer device and sewn, and its cross section is substantially L-shaped.

In this detailed description, only the embodiments of the present invention are described through examples, which do not cause any limiting effect for 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 Patent No. EP2377979, when the knitting procedure of the sock is completed in the sock manufacturing machine, the toe of the sock is open, and the last stitch 73 on the toe is still located on the knitting needle 10 of the knitting machine. Different numbers of sheet elements 31 and transfer elements 41 are used to sew the toe of the sock as described in patent number EP2377979. These components are chucks (not shown in the figure) which are opposite to each other and face to face on both sides.

1 to 8 show how to gradually remove the last stitch 73 still on the knitting needle 10 through the sheet element 31 and the transfer element 41. The steps of the above procedure are substantially described in Patent No. EP2377979. In other words, the transfer element 41 is pushed closer to the hook 11 of the knitting needle 10 by the transfer driving end 43, and by pushing the peeling drive end 33 again, the chip element 31 first grabs the top of the coil 73 and then moves downward 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 hook 11 and is positioned on the outer surface of the hook 11 by clamping, so that when the transfer element 41 is close to the hook 11 When the stitch 73 is transferred, the outer surface of the hook 11 can be preferably 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 areas 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, whereby when the transfer element 41 is close to the hook 11 to transfer the stitch 73, the transfer end 42 is maintained at Slightly below 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 stitch 73 can be transferred in a relatively safe manner.

As shown in FIG. 3, after the coil 73 is moved downward from the tongue 12 by the pressure applied by the peeling end 32, the chip element 31 returns slightly; as shown in FIG. 5, it moves forward and Bottom grab coil 73. In the next step, as shown in FIG. 6, it moves the coil 73 upward, and at the same time the tongue 12 is closed. In this case, the transfer end 42 is maintained between the hook 11 and the tongue 12. When the chip element 31 moves further upward, 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 and move to the sewing station of the toe stitching procedure.

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 as shown in FIG. 19 and fit 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 by a male fixing portion 512 extending inwardly thereon, and the female tooth 521 is fixed to the corresponding jaw by a female fixing portion 522 extending inwardly 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, which slightly protrudes from the vertically extending body, and has a transfer channel 44 shaped like a U-shape. When the transfer element 41 and the chip element 31 move upward 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 teeth 511 and the female teeth 521母 Extension 523. Thereafter, the transfer element 41 and the chip element 31 are 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 at the bottom of the plate body 46 and slightly protrudes. The transfer 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, wherein the first side plate 451 and the second side plate 452 are parallel to each other, and are spaced apart and connected Both 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, and the second side plate 452 has a second inclined surface portion 455 formed corresponding to the first inclined surface portion 454. The two inclined surface parts 455 are respectively inclined backward and downward on the side where the transfer passage 44 is provided. The first inclined surface part 454 and the second inclined surface part 455 are symmetrical in shape. The first inclined portion 454 and the second inclined portion 455 constitute a part of the arc of the bottom of the transfer element 41, and can match the curved form of the transfer end 42 to cover the outer surface of the hook 11.

The plate body 46 has a transfer driving end 43, and has 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 body 461 from the transfer driving end 43 The front end of the extension extends downward, the bottom end of the extension portion 462 is connected to the transfer bottom body 45, a side of the transfer drive end 43 away from the body portion 461 forms a concave arc groove 463, and an outer side of the extension portion 462 forms a third In the inclined portion 464, a fourth inclined portion 465 is formed on the inner side of the extending portion 462, and an inclined shoulder portion 466 is formed adjacent to the connecting portion of the extending portion 462 and the transfer 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 teeth 521 can be closed on the fixed jaw 51 carrying the male teeth 511 and opened at 180 degrees. 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 groove 524 of the female tooth 521 (as shown in FIG. 14A) to smoothly transfer the coil 73 Between the male teeth 511 and the female teeth 521 without getting stuck. Thereafter, 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, and the sewing needle 80 sews each pair of stitches 73 on the male teeth 511 behind it, and sews the open end of the textile material.

As shown in this specification, the tooth portion to which the coil 73 is fitted and sewn, 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 one side extension 514, which extends substantially vertically from the male extension 513 extending vertically.

10‧‧‧Knitting needles 11‧‧‧ Needle hook 12‧‧‧Latch 31‧‧‧chip components 32‧‧‧ Stripped end 33‧‧‧ Stripping drive end 41‧‧‧Transfer components 42‧‧‧Transfer 43‧‧‧Transfer driver 44‧‧‧Transfer channel 45‧‧‧Transfer the bottom body 451‧‧‧First side panel 452‧‧‧Second side panel 453‧‧‧Connector 454‧‧‧The first oblique face 455‧‧‧Second oblique face 46‧‧‧Board 461‧‧‧ Body 462‧‧‧Extension 463‧‧‧Concave arc slot 464‧‧‧The third oblique face 465‧‧‧The fourth oblique face 466‧‧‧Shoulder shoulder 50‧‧‧jaw unit 51‧‧‧Fixed jaw 511‧‧‧ male 512‧‧‧Public fixed department 513‧‧‧ male extension 514‧‧‧Side Extension Department 515‧‧‧ convex end 52‧‧‧Moveable jaw 521‧‧‧Female 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 when the chip element starts to push the coil downward in the mechanism of the present invention. FIG. 2 is a representative isometric isometric view of the present invention when the chip element pushes the coil downward. FIG. 3 is a representative isometric axial side projection view when the chip element is away from the coil in the mechanism of the present invention. FIG. 4 is a representative isometric isometric view of the present invention when the chip element begins to move downward. FIG. 5 is a representative isometric side projection view of the chip body element when it is close to the coil and grasped from the bottom in the mechanism of the present invention. FIG. 6 is a representative isometric isometric view of the present invention when the chip element pushes the coil upward. FIG. 7 is a representative isometric isometric view of the present invention when the chip element is completely uncoupled from the coil. Fig. 8 is a representative isometric isometric view of the projection of the sheet element and the transfer element when they are far from the knitting needle in the mechanism of the present invention. Fig. 9 is a representative isometric side projection view when the coil is driven to the sewing station in the mechanism of the present invention. FIG. 10 is a representative isometric side projection view of the mechanism of the present invention when the stitch is engaged with the teeth at the sewing station through the peeling and the transfer element moving up. Fig. 11 is a representative isometric isometric view of the transfer mechanism when the transfer element is moved away from the teeth by moving up in the mechanism of the present invention. FIG. 12 is a representative isometric side projection view of the transfer mechanism when the transfer element is moved away from the teeth by radial movement in the mechanism of the present invention. FIG. 13 is a representative isometric isometric view showing the mechanism of the present invention when a semicircle is closed to another semicircle and the chip element grabs the coil from the bottom in the closed semicircle. Fig. 14 is a representative isometric side projection view when the coil is placed side by side on the semicircular tooth portion of the receiver element in the mechanism of the present invention. 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 representative isometric isometric view showing the stitches when stitches are stitched in the mechanism of the present invention. Fig. 16 is a front view showing the view before coil transfer is performed. Fig. 17 is a front view of Fig. 6; Fig. 18 is a front view showing that the receiver element and the transfer element are fitted on the teeth of the sewing station after the stitches are transferred from the knitting needle. Fig. 19 is a front view showing that the coil is peeled off and the transfer element fits over the teeth of the sewing station. FIG. 20 is a front view showing that the transfer element moves away from the tooth portion by moving up after the coil is fitted on the stitch of the sewing station. FIG. 21 is a front view showing that the transfer element moves away from the teeth through the radial direction after the coil is fitted on the stitch of the sewing station. Fig. 22 is a front view showing that the chip element and the transfer element are moved away from the teeth by downward movement. Fig. 23 is a front view showing the mechanism of the present invention when a half circle is closed to another half circle. Fig. 24 is a front view showing the coil pair passing through the sheet element side by side on the semicircular tooth portion in the mechanism of the present invention. Fig. 25 is a front view showing the mechanism of the present invention when the sheet element and the transfer element are away from the sewing station. Fig. 26 is a front view showing that the semicircle transfers the coil to the teeth of the other semicircle and returns to the initial position (open). Fig. 27 is a front view showing the mechanism of the present invention when the pair of stitches is sewn. Fig. 28 is a diagram showing the structure of a transfer element. Fig. 29 is a sectional view showing a male tooth having a stitch and a sewing needle. 30 is a cross-sectional view showing a prior art male tooth having a stitch and a sewing needle.

10‧‧‧Knitting needles

11‧‧‧ Needle hook

12‧‧‧Latch

31‧‧‧chip components

32‧‧‧ Stripped end

33‧‧‧ Stripping drive end

41‧‧‧Transfer components

42‧‧‧Transfer

73‧‧‧coil

Claims (15)

A mechanism for transferring stitches from knitting needles of a knitting machine, which has: A knitting machine, the knitting machine has several knitting needles, each of which has a hook and a needle tongue, the needle tongue can be approached and away from the hook by rotation; A plurality of body elements to transport the stitches in each of the knitting needles to a sewing station, the piece elements can approach and separate from the knitting needles by touching the stitches in the knitting needles The chip element moves along a needle axis; and A transfer device, which includes a plurality of transfer elements, the transfer elements can be close to and away from the hooks of the knitting needles, when the sheet elements move the stitches in the knitting needles toward the hooks, Each of the transfer elements has a transfer end, and the coil is brought to the transfer end; and It is characterized in that each transfer element is configured to at least partially clamp an outer surface of the hook of each knitting needle, and each transfer element includes the transfer end when the latch is closed for the When the stitch is transferred, the transfer end is configured to be maintained between the body of the knitting needle and the hook. The mechanism for transferring stitches from knitting needles of a knitting machine as described in claim 1 is characterized in that the bottom of each transfer element is an arc, which is configured to mainly cover the top and outer front of each hook Surface area. The mechanism for transferring stitches from knitting needles of a knitting machine as described in claim 1 is characterized in that the transfer end of each transfer element is located in front of each hook, so as to partially cover the tail of the hook from the outside End, and thus when the transfer elements are close to the hooks for stitch transfer, the transfer end is maintained at a position slightly lower than an open end of the hook. The mechanism for transferring a stitch from a knitting needle of a knitting machine as described in claim 3, wherein the transfer end of each transfer element includes an arc toward the body of the knitting needle. The mechanism for transferring stitches from knitting needles of a knitting machine as described in claim 4, wherein each of the transfer elements includes a plate body and a transfer low-bottom body, the transfer low-bottom body is at the bottom of the plate body and is slightly It is protruding, and the transfer lower-bottom body has a transfer channel shaped like a U-shape. The mechanism for transferring stitches from knitting needles of a knitting machine as described in claim 5 is characterized in that the transfer lower-bottom body has the transfer channel to form a first side plate, a second side plate, and a connecting plate, the first The one side plate is parallel to the second side plate and spaced apart from each other, and the two sides of the connecting plate are respectively connected to the first side plate and the second side plate. The mechanism for transferring stitches from knitting needles of a knitting machine as described in claim 6, wherein the end of the first side plate away from the plate body has a first inclined surface portion, and the second side plate has a pair of corresponding first inclined surface portions In the formed second inclined surface portion, the first inclined surface portion and the second inclined surface portion are respectively inclined backward and downward on the side with the transfer channel, and the first inclined surface portion and the second inclined surface are the arc-shaped portions. The mechanism for transferring stitches from knitting needles of a knitting machine as described in claim 7 is characterized in that the plate body has a transfer drive end, a body, and an extension, the transfer drive end is from the back of the body The end extends upward, and the extension portion extends downward from the front end of the body away from the transfer driving end. The bottom end of the extension portion is connected to the transfer bottom body. The transfer driving end is away from the body. A concave arc groove is formed on the side, a third inclined surface portion is formed on the outer side of the extension portion, a fourth inclined surface portion is formed on the inner side of the extension portion, and an inclined shoulder portion is formed adjacent to the connection between the extension portion and the transfer low-bottom body , The oblique shoulder is on the side with the connecting plate. A sewing station mechanism for sewing the open end of a textile material woven into a tube at a sewing station, which includes: A first semi-circle having a plurality of first longitudinal teeth, the number of the first longitudinal teeth being half of the number of the last row of stitches at the open end of the textile material; and A second semi-circle, which includes a plurality of second longitudinal teeth, the number of the second longitudinal teeth is one-half of the number of the last row of coils, and can be rotated 180 degrees to be close to and away from the first semi-circle The first longitudinal tooth; and The utility model is characterized in that the first longitudinal tooth portion with the stitched stitch pair conveyed by a transfer device in the sewing station is substantially L-shaped in cross section. The sewing station mechanism according to claim 9, wherein the first longitudinal tooth portions having an L-shaped cross section are male teeth. The sewing station mechanism according to claim 9, wherein a sewing procedure is performed on the first longitudinal teeth of the fixed first semicircle. The sewing station mechanism according to claim 10, wherein the male teeth include a male extension extending vertically and a side extension, the side extension extending substantially from the male extension. The sewing station mechanism according to claim 10, wherein the second longitudinal tooth portions are female teeth. The sewing station mechanism according to claim 13, wherein the male teeth have a male fixing portion extending inwards, and a male extension portion extending vertically, and having a convex end; the female teeth A female fixing portion extending inwards, and having a vertically extending female extending portion, and having a groove at one end, when the male teeth are close to the female teeth, the convex ends of the male teeth are inserted into the ends of the female teeth Slot to smoothly transfer the coil between the male teeth and the female teeth. The sewing station mechanism according to claim 14, wherein one of the first semicircle and the second semicircle is a fixed jaw, and the other is a movable jaw, and the movable jaw carries these Female teeth, the fixed jaw carries the male teeth, the movable jaw rotates 180 degrees and closes on the fixed jaw, so that the convex ends of the male teeth are inserted into the end grooves of the female teeth.

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