A crochet structure capable of stable loop transfer

Abstract

The present application relates to the field of cross-weaving needle, in particular to a hook needle structure capable of stable loop transfer, comprising a needle body, the needle body is provided with a mounting groove, the mounting groove is used for setting the mounting part of the turning needle piece; a needle rod, the needle rod is connected with the needle body, the end of the needle rod is provided with a needle hook; a limiting element is arranged between the mounting groove and the side of the needle body, the limiting element is distributed along the direction of the mounting groove, and is located at the side of the needle body corresponding to the needle rod; and the limiting element is protruded relative to the needle body, and the upper surface of the protruded part is flush. After the above scheme is adopted, the operation accuracy during loop transfer can be improved, and the loop transfer can be ensured to be carried out smoothly.

Description

Technical Field

[0001] This invention relates to the field of flat knitting needles, specifically to a hook needle structure that can stably shift loops. Background Technology

[0002] Computerized flat knitting machine is a double-needle plate weft knitting machine. Through the knitting head and the cam mechanism set on the cam base plate of the knitting head, the cam system drives the knitting needles set in the needle groove of the needle bed (needle plate) to move up and down along the needle groove during the reciprocating motion of the knitting head along the guide rail. With the cooperation of the cam mechanism and the tensioning mechanism, the knitting of the fabric is completed.

[0003] Among them, knitting needles include composite needles with separate hooks and latches, as well as ordinary hook needles with the latches pivoted below the hooks. In the latter structure, a looper (looper) for transferring loops is set on the side of the needle body, with its end extending to the needle bar below the hook and forming a certain gap with the needle bar. That is, the looper is used to expand the loop when the loop is transferred between the front and rear needle beds to facilitate the insertion of the looper needle.

[0004] However, as knitting requirements increase, the distribution of knitting needles becomes increasingly dense. This necessitates that the gap between the turn-over plate and the needle bar be as narrow as possible to reduce space usage. Therefore, if the knitting needle is affected by vibrations generated by the needle bed's operation during loop transfer, causing the connecting needle (i.e., the needle on the other side) to fail to align with the gap, the loop transfer will fail. Since the knitting needle is positioned in the needle groove, the larger the gap between the needle and the needle groove, the greater the impact of vibration on the needle. However, the needle also needs to slide within the needle groove, and it cannot experience excessive resistance from the groove, which could cause the needle to jam.

[0005] Therefore, the inventors conducted further research and developed a hook structure that can stably shift loops, which led to this invention. Summary of the Invention

[0006] The purpose of this invention is to provide a hook structure that can stabilize the transfer of loops, improve the running accuracy during the transfer of loops, and ensure that the transfer of loops is carried out smoothly.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows:

[0008] A crochet hook structure capable of stable loop transfer, including

[0009] The needle body has a mounting groove for mounting the flip-up needle piece;

[0010] Needle bar, which is connected to the needle body, and a needle hook is provided at the end of the needle bar;

[0011] A limiting element is provided between the mounting groove and the side of the needle body. The limiting element is distributed along the direction set by the mounting groove and is located on the side of the needle body corresponding to the needle bar. The limiting element protrudes relative to the needle body, and the upper surface of the protruding part is flush with the needle body.

[0012] Although traditional physics holds that frictional force is independent of the contact area based on the "Armonton-Coulomb" friction model, in the 1950s, Bowden and Tabor of Cambridge University collaborated and argued that frictional force is related to the actual contact area. In 2009, Szlufarska et al. of the University of Wisconsin demonstrated through molecular dynamics simulations that frictional force depends linearly on the number of atoms interacting in the contact, and showed that the linear relationship between frictional force and contact area observed macroscopically can be extended to the nanoscale.

[0013] Based on the applicant's actual production experience, by setting limited limiting elements, the gap between the knitting needle and the needle groove is reduced (which can be considered as direct contact, not an interference fit). However, other parts of the knitting needle still have a certain gap with the needle groove. This ensures that the knitting needle can slide in the needle groove and does not wobble left and right when the needle bed is working, thereby improving the running stability of the knitting needle and ensuring the accuracy of loop shifting. On the other hand, if the entire knitting needle is thickened so that there is no gap between the knitting needle and the needle groove, it will cause the knitting needle to be unable to move in the needle groove or to move very difficultly.

[0014] Furthermore, the limiting element may be an integral part of the needle body, an extension of the needle flipper mounting part, or a separate element connected to the needle body.

[0015] The above schemes are the main ways to form limiting elements.

[0016] Furthermore, when the limiting element and the needle body are an integral structure, they are distributed along the side of the mounting groove and protrude relatively.

[0017] Furthermore, when the limiting element is an extension of the needle flipper mounting portion, the needle flipper extends from the mounting groove toward the side of the needle body to form a limiting element that protrudes relative to the needle body.

[0018] Furthermore, when the limiting element is set as a separate element on the needle body, a recessed limiting groove is provided on the side of the mounting groove, and the limiting element is set in the limiting groove either continuously or discontinuously.

[0019] When the limiting element is connected to the needle body as a separate component, since the limiting element cannot protrude too much relative to the needle body, and the limiting element is too thin, it will be difficult to process and set the limiting element. Therefore, a concave limiting groove is first processed at the location of the needle body where the limiting element is set, so as to ensure the installation and setting of the limiting element.

[0020] Furthermore, a limit element is also provided on the side of the needle body away from the mounting groove.

[0021] A limiting element is set on the other side. Since it is far from the needle flipping piece, its effect on stabilizing the knitting needle is not as good as when it is set on the side of the mounting groove when set alone. Therefore, it is generally set at the same time as mentioned above.

[0022] Furthermore, a receiving groove is provided on the needle bar, which is used to set the end of the flipping needle piece.

[0023] Furthermore, the limiting elements are distributed along the side of the mounting groove, and their total length is greater than or equal to 1 mm.

[0024] The limiting element itself can be constructed in a continuous or discontinuous manner. By setting its total length, the limiting element can ensure that the knitting needle can run stably.

[0025] By adopting the above solution, the present invention has the following advantages compared with the prior art:

[0026] This avoids excessive vibration of the knitting needles due to the vibration of the equipment itself during the transfer process, which could lead to transfer failure. In other words, by improving the working stability of the knitting needles, the running accuracy during transfer is improved; at the same time, it prevents the knitting needles from getting stuck in the needle groove. Attached Figure Description

[0027] Figure 1 This is one of the schematic diagrams of Embodiment 1;

[0028] Figure 2 This is the second schematic diagram of Embodiment 1;

[0029] Figure 3 This is a schematic diagram of Example 2;

[0030] Figure 4 This is a schematic diagram of Example 3;

[0031] Figure 5 This is a schematic diagram of Example 4;

[0032] Figure 6 This is a schematic diagram of Example 5;

[0033] Label Explanation

[0034] Needle body 1, mounting groove 11, mounting part 12 (for the flip-up needle plate)

[0035] Limiting element 13, limiting groove 14;

[0036] Needle bar 2, receiving groove 21, needle hook 22. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] In the following specific embodiments, only the hook part of the knitting needle is illustrated, that is, the hook structure for turning the needle, which includes a needle body 1 and a needle bar 2. The needle body 1 is provided with a mounting groove 11, which is used to set the mounting part 12 of the turning needle piece; the needle bar is connected to the needle body, and a needle hook 22 is provided at the end of the needle bar; a receiving groove 21 is provided on the needle bar, which is used to set the end of the turning needle piece; the above structure is the basic structure of the hook needle.

[0039] Example 1:

[0040] like Figure 1 , Figure 2 As shown, in this embodiment, the mounting portion 12 of the needle flap is disposed in the mounting groove 11, and one side of the mounting portion extends upward along the edge of the groove from the mounting groove, and a limiting element 13 is formed on the side of the needle body. The limiting element has a flat structure and protrudes relative to the surface of the needle body. Considering the assembly process, the needle body is relatively recessed at the location of the limiting element to accommodate the limiting element.

[0041] Example 2:

[0042] like Figure 3 As shown in this embodiment, the needle flipping piece is not shown. On the side of the mounting groove 11, which is also the corresponding side of the needle body, a continuous and narrow limiting element 13 is formed by protruding upward. In this embodiment, the limiting element and the needle body are an integral structure, which is equivalent to a protruding edge being set on the side of the needle body.

[0043] Example 3:

[0044] like Figure 4 As shown, this embodiment refers to Embodiment 2, but is not limited to Embodiment 2. A limiting element 13 is also provided on the side of the needle body away from the mounting groove. The structure of the limiting element is the same as the structure of the aforementioned limiting element.

[0045] Example 4:

[0046] like Figure 5 As shown in the enlarged view of the crochet hook (excluding the turn-up piece), in this embodiment, the limiting element 13 is an independent component, elongated in shape, and embedded in a narrow limiting groove. In terms of overall structure, it is similar to Embodiment 2. Although this embodiment requires milling the limiting groove 14 into the hook body during actual processing, its processing difficulty is lower than that of Embodiment 2, resulting in a higher yield. This is because the hook body itself is relatively thin, and the limiting element has a small width, making direct one-piece molding difficult.

[0047] Example 5:

[0048] like Figure 6As shown, which is also a partial enlarged view of the crochet hook, in this embodiment, the limiting element 13 is formed by riveting several independent elements onto the hook body. The shape of the independent elements is not limited to a circle. In this embodiment, a circle is used as an illustration. Its upper surface is also higher than the surface of the hook body and flush with it.

[0049] The processing difficulty of this embodiment is also lower than that of Embodiment 2.

[0050] The limiting elements in all the above embodiments cannot obstruct the gap required during the ring shifting. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this invention are for reference only and are not absolute limitations. Any non-substantial modifications made using this invention shall be considered as infringing upon the protection scope of this invention.

Claims

1. A crochet hook structure capable of stable loop shifting, characterized in that: include The needle body has a mounting groove for mounting the flip-up needle piece; The needle bar is connected to the needle body, and a needle hook is provided at the end of the needle bar; A limiting element is provided between the mounting groove and the side of the needle body. The limiting element is distributed along the direction of the mounting groove and is located on the side of the needle body corresponding to the needle bar. The limiting element protrudes relative to the needle body, and the upper surface of the protruding part is flush with the needle body. The limiting element may be an integral part of the needle body, an extension of the needle flipper mounting part, or a separate element connected to the needle body.

2. The hook structure capable of stable loop shifting according to claim 1, characterized in that: When the limiting element and the needle body are an integral structure, they are distributed along the side of the mounting groove and protrude relatively.

3. The hook structure capable of stable loop shifting according to claim 1, characterized in that: When the limiting element is an extension of the needle flipper mounting portion, the needle flipper extends from the mounting groove toward the side of the needle body to form a limiting element that protrudes relative to the needle body.

4. The hook structure capable of stable loop shifting according to claim 1, characterized in that: When the limiting element is set as a separate element on the needle body, a recessed limiting groove is provided on the side of the mounting groove, and the limiting element is set in the limiting groove either continuously or discontinuously.

5. The hook structure capable of stable loop shifting according to claim 1, characterized in that: Limiting elements are also provided on the side of the needle body away from the mounting groove.

6. The hook structure capable of stable loop shifting according to claim 1, characterized in that: The needle bar has a receiving groove for setting the end of the flip needle piece.

7. The hook structure capable of stable loop shifting according to claim 1, characterized in that: The limiting elements are distributed along the side of the mounting groove, and their total length is greater than or equal to 1 mm.

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