TWI724452B - Weft knitting machine knitting structure with changeable yarn positions - Google Patents

Abstract

A weft knitting machine knitting structure with changeable yarn position is provided. A facing yarn and a bottom yarn positioned below the facing yarn are fed during knitting, the weft knitting machine knitting structure comprises a plurality of sinkers and a plurality of needles, the plurality of needles are respectively arranged adjacent to one of the plurality of sinkers, and each of the plurality of sinkers is guided to perform a linear displacement movement. Each of the plurality of needles is provided with a hook and a latch for performing a closing action where is relative to the hook.; each of the plurality of needles is controlled in a first needle retracting track to weave a standard plating without changing positions of the facing yarn and the bottom yarn in the hook or a second needle retracting track to weave an interchanged plating by changing the positions of the facing yarn and the bottom yarn in the hook by the latch, when one of the plurality of the sinkers adjacent to the second needle retracting track does not limit the position of the facing yarn and the bottom yarn.

Description

Knitting structure of weft knitting machine capable of changing yarn position

The invention relates to a knitting structure of a weft knitting machine, in particular to a knitting structure of a weft knitting machine capable of changing yarn positions.

Check, Plating is also known as Yarn Adding or Yarn Stacking, which refers to feeding two yarns of different colors (Yarn) at the same time during knitting, so that the knitted fabric is a technical face. (Technical Face) and a Technical Back (Technical Back) show different colors. However, in order to increase the color change or pattern change of the fabric, the prior art proposes to change the position of the two fed yarns during the knitting process to change the color of the plated loop on the front side of the technology. The fabric surface is shown in Figure 1. Shown. Accordingly, the aforementioned knitting technique is called Jacquard in the art.

Taking US1,666,794, US1,950,405, US3,157,035, US2,616276, CN104532458A, WO00/15890A and other patents, these patents change the feeding of two yarns through the structure or matching structure of a yarn feeder itself position. However, because the yarn feeder is still far away from the position where a weft knitting machine performs knitting, even if the yarn feeder can change the yarn position immediately, the multiple knitting needles located at a distance can still grab the yarns that have not changed positions. , Resulting in the problem of image retention on the fabric, as shown in Figure 2 at 90.

In addition, there are also implementations that use various Schenck sheets to complete the yarn change requirements, such as those disclosed in US1,977,590 and CN2249253Y, but this implementation will greatly reduce the number of needles that can be configured per port of the weft knitting machine. , Does not apply to the current industry’s demand for needles.

The main purpose of the present invention is to solve the problem that the fabric is prone to afterimages caused by the yarn feeder implemented by the conventional technology.

The secondary purpose of the present invention is to solve the practical application problem derived from the conventional technology that requires multiple Schenck sheets to implement yarn replacement.

To achieve the above objective, the present invention provides a weft knitting machine knitting structure capable of changing yarn positions. When knitting, a face yarn and a bottom yarn are fed under the face yarn. The weft knitting machine knitting structure includes a plurality of Schenk sheets and a plurality of knitting sheets. Needles, the Schenk sheets are respectively arranged adjacent to one of the knitting needles, each Schenk sheet has an abdomen, a nose connected to the abdomen, and a throat between the abdomen and the nose, Each of the Schenk sheets is guided to perform a linear displacement movement. After the linear displacement movement, the veil is located above the nose, and the bottom veil is located in the throat. The knitting needles respectively have a needle hook and a needle tongue that can perform a closing action with respect to the needle hook, and each of the knitting needles is controlled to be knitted with an unchanged position of the veil and the bottom yarn in the needle hook The first narrowing track of a normal plated loop or one that can be used when one of the adjacent Schenk sheets does not define the position of the veil and the bottom yarn with the needle tongue to move the bottom yarn to make the bottom yarn receive the Schenck sheet The nose is pushed to change the position of the veil and the bottom yarn in the needle hook to knit a second narrowing track of yarn changing and plating, and each of the knitting needles is in the second narrowing track, the needle tongue The time point when the closing action is generated is earlier than the first narrowing-in trajectory.

In one embodiment, the knitting structure of the weft knitting machine includes a needle guide plate that guides the knitting needles to the first narrowing track or the second narrowing track, and a knitting needle guide plate that guides the Schenk sheets to the Schenck film guide plate for linear displacement movement. Further, the knitting structure of the weft knitting machine further includes a needle selector for controlling each of the knitting needles.

In one embodiment, each Schenker piece has only a single moving track, and the moving track loops through a first retraction section, a first push-out section following the first retraction section, and a first push-out section following the first retraction section. The second retracting section of the section and a second pushing-out section following the second retracting section, each of the knitting needles in the first narrowing trajectory when the needle tongue generates the closing action is adjacent Suppose that when one of the Schenk sheets moves to the second retracting section, the time point when each of the knitting needles in the second narrowing track produces the closing action of the needle tongue is the movement of one of the adjacent Schenk sheets To the first push-out section.

In one embodiment, the veil and the bottom veil have different colors.

Through the foregoing implementation of the present invention, compared with conventional use, the knitting structure of the weft knitting machine of the present invention implements the change of the yarn position at the feeding point of the face yarn and the bottom yarn, and can quickly respond to the knitting needs of changing yarns. , Specifically to avoid the afterimage of the fabric. In addition, the knitting structure of the weft knitting machine of the present invention can achieve the purpose of fast yarn changing and knitting without greatly modifying the overall structure.

The detailed description and technical content of the present invention are now described in conjunction with the drawings as follows:

3 to 5, the present invention provides a weft knitting machine knitting structure 10 capable of changing yarn positions, which is set on a needle bed 20 of a weft knitting machine. The aforementioned weft knitting machine may be a circular knitting machine. . The knitting structure 10 of the weft knitting machine includes a plurality of Sinker sheets 11 (Sinker) and a plurality of knitting needles 12. A nose 112 connected to the abdomen 111 and a throat 113 between the abdomen 111 and the nose 112. Each of the Schenk sheets 11 is a yarn receiving surface 114 on the side of the nose 112 that does not face the throat 113. The yarn receiving surface 114 is not limited by a plane, and can be designed accordingly according to implementation requirements. On the other hand, the end of the nose 112 is a yarn pushing surface 115. In this embodiment, the yarn pushing surface 115 is set to be a flat surface, but it is not limited to this and can be designed according to implementation requirements. Furthermore, in the present invention, each Schenker piece 11 is respectively guided by a Schenker piece guide plate 13 to perform a linear displacement movement 116. Further, the linear displacement movement 116 is actually a one-dimensional movement.

Please refer to FIGS. 3 to 6 again. The knitting needles 12 are respectively adjacent to one of the Schenker sheets 11, that is, each of the knitting needles 12 is located between the adjacent two Schenker sheets 11, respectively. . Each of the knitting needles 12 has a needle hook 121 and a needle tongue 122 that can perform a closing action relative to the needle hook 121. Further, when each of the knitting needles 12 is drawn out of the needle hook, the needle tongue 122 is opened relative to the needle hook 121, so that the yarn can enter the needle hook 121. Furthermore, when each of the knitting needles 12 is narrowed, the needle tongue 122 will perform the closing action in the direction of the needle hook 121 due to the action of the previous plated loop 50 that has been woven, closing the needle hook 121 that was originally open part. Moreover, the arrangement direction of the knitting needles 12 of the present invention is that the open part of the needle hook 121 faces the throat 113 adjacent to one of the Schenker sheets 11, as shown in FIG. 6. In addition, the movement direction of the knitting needles 12 of the present invention is perpendicular to the direction of the linear displacement movement 116. The knitting needles 12 are respectively guided by a needle guide plate 14 and each knitting needle 12 is controlled to a first A narrowing trajectory 40 or a second narrowing trajectory 41 is active. Further, each of the knitting needles 12 is controlled by a needle selector. Furthermore, each of the knitting needles 12 in the second narrowing trajectory 41 generates the closing action of the needle tongue 122 earlier than the first narrowing trajectory 40.

Please refer to FIGS. 3 to 5 again. When the knitting structure 10 of the weft knitting machine is knitting, it receives a face yarn 30 fed by a yarn feeding device (not shown in the figure) and a bottom yarn 31 located under the face yarn 30. In one embodiment, the color of the veil 30 and the bottom veil 31 are different. For specific description, this article temporarily uses the knitting needles 12 not to move to explain the relationship between each Schenck piece 11 and the veil 30 and the bottom yarn 31. Accordingly, each Schenker piece 11 is guided by the Schenker piece guide plate 13 to perform the linear displacement movement 116. During the linear displacement movement 116, the veil 30 is always located at the nose 112 Above, the bottom yarn 31 is always located in the throat 113. Furthermore, each Schenck film 11 only performs one-dimensional movement. Please also refer to Figure 4, Figure 6 and Figure 7 to explain the work of each of the knitting needles 12. In the following description, it is not assumed that each Schenker piece 11 is inactive, but the weft knitting machine knits the structure 10 The overall work is explained. Accordingly, when each of the knitting needles 12 moves on the first narrowing track 40, each of the knitting needles 12 does not change the position of the veil 30 and the bottom yarn 31 in the needle hook 121 and weaves a normal plating Standard Plating, the so-called "normal plating" refers to the plating of the veil 30 above the base yarn 31 when viewed from a technical front of a fabric. Please also refer to Figures 8 to 10. Also, when each of the knitting needles 12 of the present invention moves along the second narrowing track 41, each of the knitting needles 12 will be adjacent to one of the Schenker sheets 11 that does not limit the When the veil 30 and the bottom yarn 31 are in position, the needle tongue 122 is used to move the bottom yarn 31 so that the bottom yarn 31 is pushed by the nose 112 of the Schenker sheet 11 to change the veil 30 and the bottom yarn 31 Inside the needle hook 121, an Interchanged Plating is knitted. The so-called Interchanged Plating refers to the plating where the veil 30 is located under the bottom yarn 31 when viewed from the front of the fabric. ring. It can be seen from this that whether the knitting structure 10 of the weft knitting machine of the present invention can change the position of the yarn depends on the movement of the knitting needles 12 on the first narrowing track 40 or the second narrowing track 41.

Please refer to FIG. 4 again. As above, each Schenker piece 11 of the present invention has only a single moving track 42. The moving track 42 cyclically proceeds with a first retracting section 421, and a second retraction section 421 following the first retracting section 421. An ejection section 422, a second retraction section 423 following the first ejection section 422, and a second ejection section 424 subsequent to the second retraction section 423. Wherein, the retracting action defined in the present invention means that each Schenk piece 11 moves away from the feeding point of the veil 30 and the bottom yarn 31, when each Schenk piece 11 moves away from the veil 30 When compared with the position of the bottom yarn 31, the veil 30 and the bottom yarn 31 are not restricted by the Schenck sheet 11. In addition, the pushing action defined in the present invention means that after each Schenk piece 11 is retracted, the Schenk piece 11 is displaced toward the feeding point of the veil 30 and the bottom yarn 31, and when the Schenk piece 11 is displaced When the feeding point of the veil 30 and the bottom yarn 31 is reached, the veil 30 and the bottom yarn 31 will be restricted by the Schenck sheet 11 and cannot change their positions. From the above, it can be seen that the position of each Schenck piece 11 in each section of the moving track 42 of the present invention is continuously changed, not only at a single position. Please refer to FIGS. 6 and 7 again. When each of the knitting needles 12 moves along the first narrowing trajectory 40 of the present invention, the time point at which the needle tongue 122 produces the closing action is adjacent to one of the Schenck sheets 11 moving To the second retracting section 423 o'clock. In this way, the face yarn 30 and the bottom yarn 31 are in the state of being fed into the knitting structure 10 of the weft knitting machine, and are hooked by the needle hook 121. Please refer to FIGS. 8 to 10 again. On the other hand, when each of the knitting needles 12 of the present invention moves along the second narrowing track 41, the time point at which the needle tongue 122 generates the closing action is adjacent to one of the applications. When the gram piece 11 moves to the first push-out section 422, further speaking, the time point when the needle tongue 122 generates the closing action is not the last point of the first push-out section 422, but each Schenck piece 11 In the first push-out section 422, the position of the veil 30 and the bottom yarn 31 is not restricted yet. Therefore, when the needle tongue 122 of each knitting needle 12 performs the closing action, the bottom yarn 31 will be toggled so that the bottom yarn 31 deviates from its original position and is positioned on the adjacent one of the Schenk sheets 11 On the displacement trajectory of the nose 112, the Schenck sheet 11 that continues to perform the pushing action can be pushed against the bottom yarn 31 by the pushing surface 115, so that the bottom yarn 31 changes its relative position with the veil 30 until it makes One of the needle hooks 121 of the knitting needle 12 is hooked.

In summary, the present invention performs positional change at the position where the face yarn 30 and the bottom yarn 31 are fed into the knitting structure 10 of the weft knitting machine to perform jacquard knitting. Compared with the conventional one, the weft knitting machine knitting structure 10 of the present invention has an instant yarn changing reaction time, which can solve the problem that the conventional yarn changing reaction speed is slow and the pattern on the fabric appears afterimages.

The foregoing is only a preferred embodiment of the present invention, and should not be used to limit the scope of implementation of the present invention, that is, all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention should still be covered by the patent of the present invention.

10: Knitting structure of weft knitting machine 11: Schenck film 111: Abdomen 112: Nose 113: Throat 114: Yarn-bearing surface 115: push yarn surface 116: Linear displacement movement 12: Knitting needles 121: Needle Hook 122: Needle Tongue 13: Schenck film guide plate 14: Needle guide plate 20: Needle bed 30: Veil 31: bottom yarn 40: The first narrowing track 41: Second narrowing track 42: Activity Track 421: First retract section 422: The first rollout section 423: Second retract section 424: second rollout section 50: plated ring 90: Afterimage

Figure 1. Schematic diagram of the cloth surface when the fabric is changed correctly. Figure 2. Schematic diagram of the fabric surface with afterimages appearing on the fabric. Fig. 3 is a schematic structural diagram of a knitting structure of a weft knitting machine according to an embodiment of the present invention. Fig. 4 is a comparison diagram of the trajectory of the knitting needle and the Schenck sheet according to an embodiment of the present invention. Fig. 5 is a schematic diagram of the action of a Schenker sheet according to an embodiment of the present invention. Fig. 6 is a schematic diagram of the narrowing action when the knitting needle moves on the first narrowing track according to an embodiment of the present invention. Fig. 7 is a schematic diagram showing the positions of the veil and the bottom yarn in the needle hook during standard ring plating according to an embodiment of the present invention. Fig. 8 is a schematic diagram (1) of the narrowing movement when the knitting needle moves on the second narrowing track according to an embodiment of the present invention. Fig. 9 is a schematic diagram (2) of the narrowing motion when the knitting needle moves on the second narrowing track according to an embodiment of the present invention. Fig. 10 is a schematic diagram showing the positions of the veil and the bottom yarn in the needle hook when changing the yarn and plating the ring according to an embodiment of the present invention.

11: Schenck film

12: Knitting needles

40: The first narrowing track

41: Second narrowing track

42: Activity Track

421: First retract section

422: The first rollout section

423: Second retract section

424: second rollout section

Claims (6)

A weft knitting machine knitting structure capable of changing yarn positions. When knitting, a veil and a bottom yarn are fed under the veil. The knitting structure of the weft knitting machine includes a plurality of Schenk sheets, each having an abdomen, and the abdomen. Connecting the nose and a throat between the abdomen and the nose, each of the Schenk sheets is guided to perform a linear displacement movement. After the linear displacement movement, the veil is located above the nose. The bottom yarn is located in the throat; and a plurality of knitting needles are respectively adjacent to one of the Schenk sheets and move in a direction perpendicular to the linear displacement movement of the Schenk sheet, each of the knitting needles has a needle hook and a A needle tongue that can perform a closing action with respect to the needle hook, and each of the knitting needles can perform a first narrowing trajectory so that the needle can be controlled at a time when the needle is closed to perform the closing action, or perform a second retracting The needle trajectory causes the needle tongue to produce the closing action time point earlier than the needle tongue closing time point of the first narrowing trajectory; wherein, each of the knitting needles in the first narrowing trajectory does not change the veil and The bottom yarn is knitted into a normal plated loop at the inner position of the needle hook; and wherein, when one of the Schenk pieces adjacent to the knitting needle has not defined the position of the veil and the bottom yarn, the knitting needle is in the second The narrowing track first exits the needle and uses the needle tongue to move the bottom yarn so that the bottom yarn is pushed by the nose of the Schenker piece to change the position of the veil and the bottom yarn in the needle hook to make a change Yarn plated loop. The knitting structure of the weft knitting machine capable of changing the yarn position according to claim 1, wherein the knitting structure of the weft knitting machine includes a knitting machine that guides the knitting needles to the first narrowing track or the second narrowing track. A needle guide plate and a Schenker sheet guide plate that guides the Schenck sheets to perform the linear displacement movement. The knitting structure of the weft knitting machine capable of changing the yarn position according to claim 2, wherein the knitting structure of the weft knitting machine includes a needle selector that controls each of the knitting needles. The knitting structure of the weft knitting machine capable of changing the yarn position according to claim 1 or 2 or 3, wherein each Schenck piece has only a single moving track, and the moving track cyclically proceeds with a first retracting section and a continuous A first push-out section of the first pull-out section, a second pull-out section following the first push-out section, and a second push-out section continuous with the second pull-out section, each of the knitting needles The time point at which the needle tongue in the first narrowing trajectory generates the closing action is when one of the Schenk sheets moves to the second retracting section, and each of the knitting needles is in the second narrowing trajectory. The time point when the needle tongue generates the closing action is when one of the adjacent Schenck tablets moves to the first push-out section. The knitting structure of the weft knitting machine capable of changing the yarn position according to claim 4, wherein the color of the face yarn and the bottom yarn are different. The knitting structure of the weft knitting machine capable of changing the yarn position according to claim 1, 2, or 3, wherein the color of the face yarn and the bottom yarn are different.

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