Crochet hook structure capable of stably transferring loop

Abstract

The invention relates to the field of knitting needles of flat knitting machines, in particular to a crochet hook structure capable of stably transferring loops, which comprises a needle body, and a mounting groove is formed in the needle body and is used for arranging a mounting part of a needle turning piece; the needle rod is connected with the needle body, and a needle hook is arranged at the end part of the needle rod; a limiting element is arranged between the mounting groove and the side edge of the needle body, is distributed along the direction of the mounting groove, and is positioned on one side, corresponding to the needle rod, of the needle body; the limiting element protrudes relative to the needle body, and the upper surface of the protruding part is flush. After the scheme is adopted, the running precision during loop transfer can be improved, and smooth loop transfer is ensured.

Description

Technical Field

[0001] The invention relates to the field of flat knitting machine needles, in particular to a hook needle structure capable of stably transferring loops. Background Art

[0002] The computerized flat knitting machine is a double-needle plate latch needle weft knitting loom. Through the machine head and the cam mechanism arranged on the cam bottom plate of the machine head, that is, the cam system, when the machine head reciprocates along the guide rail, the knitting needles arranged in the needle grooves of the needle bed (needle plate) are driven to move up and down along the needle grooves, and the weaving of the fabric is completed with the cooperation of the cam mechanism and the pulling mechanism.

[0003] Among them, the knitting needles include compound needles with separate hooks and latch needles, and ordinary crochet needles with latch needles pivotally connected to the bottom of the hook. In the structure of the latter, a needle transfer piece (circle transfer piece) used for transferring the loop is arranged on the side of the needle body, and its end extends to the needle bar under the hook, and a certain gap is formed between the needle bar, that is, the needle transfer piece is used to expand the loop when the loop is transferred between the front and rear needle beds to facilitate the insertion of the loop receiving needle.

[0004] However, with the improvement of knitting requirements, the distribution of knitting needles is becoming more and more dense, which requires the gap between the needle plate and the needle bar to be as narrow as possible to reduce the occupied space. Therefore, if the knitting needle is affected by the vibration generated by the working state of the needle bed during the transfer, the receiving needle (i.e. the knitting needle on the other side) cannot enter the gap, which will lead to the transfer failure. The knitting needle is set in the needle groove. The larger the gap between the knitting needle and the needle groove, the greater the impact on the knitting needle during vibration. However, the knitting needle needs to slide in the needle groove, and the knitting needle cannot be stuck due to excessive resistance of the needle groove.

[0005] Therefore, the inventor conducted further research on this and developed a crochet needle structure that can stably transfer loops, which resulted in the present invention. Summary of the invention

[0006] The purpose of the present invention is to provide a crochet needle structure capable of stably transferring loops, improve the running accuracy during the transfer, and ensure the smooth transfer of loops.

[0007] In order to achieve the above object, the technical solution of the present invention is as follows:

[0008] A crochet needle structure capable of stably transferring loops, comprising

[0009] The needle body is provided with a mounting groove, and the mounting groove is used to set the mounting part of the needle turning piece;

[0010] A needle bar, the needle bar is connected to the needle body, and a needle hook is arranged at the end of the needle bar;

[0011] 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. The limiting element protrudes relative to the needle body, and the upper surface of the protruding part is flush.

[0012] Although traditional physics believes that friction is independent of contact area based on the "Amonton-Coulomb" friction model; in the 1950s, Bowden and Tabor of Cambridge University worked together and believed that friction is related to the actual contact area; in 2009, Szlufarska et al. of the University of Wisconsin in the United States proved through molecular dynamics simulation that friction linearly depends on the number of atoms interacting in contact, and showed that the linear relationship between friction and contact area observed macroscopically can be extended to the nanoscale.

[0013] According to the applicant's actual production experience, by setting a limited limit element, the gap between the knitting needle and the needle groove is reduced (it can be regarded as direct contact, not interference fit), but there is still a certain gap between the other parts of the knitting needle and the needle groove, so as to ensure that the knitting needle can slide in the needle groove and does not shake left and right when the needle bed is working, thereby improving the running stability of the knitting needle and ensuring the accuracy of the transfer. If the knitting needle is thickened as a whole 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 it will become very difficult to move.

[0014] Furthermore, the limiting element is either an integral structure with the needle body, or an extension of the needle turning piece mounting portion, or a separate element connected to the needle body.

[0015] The above solutions are the main ways to form the limiting element.

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

[0017] Furthermore, when the limiting element is an extension of the needle turning piece installation portion, the needle turning piece extends from the installation groove toward the side of the needle body to form a limiting element protruding relative to the needle body.

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

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

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

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

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

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

[0024] The limiting element itself can be formed by a continuous or discontinuous structure, and its total length is set to ensure that the limiting element can enable the knitting needle to operate stably.

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

[0026] This avoids excessive vibration amplitude of the knitting needles due to the vibration of the equipment itself during the transfer of the knitting needles, which leads to the failure of the transfer of the knitting needles. That is, by improving the working stability of the knitting needles, the operating accuracy during the transfer of the knitting needles is improved; at the same time, the knitting needles will not be stuck in the needle grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is one of the schematic diagrams of the first embodiment;

[0028] Figure 2 This is the second schematic diagram of the first embodiment;

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

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

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

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

[0033] Description of symbols

[0034] Needle body 1, mounting groove 11, mounting portion 12 (of needle turning piece),

[0035] Limiting element 13, limiting groove 14;

[0036] Needle bar 2, accommodating groove 21, needle hook 22. DETAILED DESCRIPTION

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

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

[0039] Embodiment 1:

[0040] like Figure 1 , Figure 2 As shown, in this embodiment, the mounting portion 12 of the needle turning piece is arranged in the mounting groove 11, and one side of the mounting portion extends upward from the mounting groove along the groove edge, and covers the side edge of the needle body to form a limiting element 13, which is a flat structure as a whole and protrudes relative to the surface of the needle body. Considering the assembly process, the needle body at the position where the limiting element is located is relatively concave to accommodate the limiting element.

[0041] Embodiment 2:

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

[0043] Embodiment three:

[0044] like Figure 4 As shown, this embodiment is based on the second embodiment, but is not limited to the second embodiment. A limiting element 13 is also provided on one side of the needle body away from the mounting groove, and the structure of the limiting element is consistent with the structure of the aforementioned limiting element.

[0045] Embodiment 4:

[0046] like Figure 5 As shown, a partial enlarged view of the crochet needle is shown, and the needle turning piece is not shown in the figure. In this embodiment, the limiting element 13 is an independent element, which is a long strip as a whole and is embedded in a narrow limiting groove. In terms of the overall structure, it is similar to the second embodiment. In actual processing, although this embodiment needs to mill the limiting groove 14 in the needle body, its processing difficulty is lower than that of the second embodiment, and the yield rate is higher. Because the needle body itself is thin and the limiting element is small in width, it is difficult to process directly through one-piece molding.

[0047] Embodiment five:

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

[0049] The processing difficulty of this embodiment is also lower than that of the second embodiment.

[0050] The limiting elements in all the above embodiments cannot block the gap required for shifting the circle. At the same time, all words such as "upper, lower, left, right, middle" involved in the present invention are for reference only and are not absolute limitations. Any non-substantial changes made using the present invention shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A crochet needle structure capable of stably transferring loops, characterized in that: include The needle body is provided with a mounting groove, and the mounting groove is used to set the mounting part of the needle turning piece; A needle bar, the needle bar is connected to the needle body, and a needle hook is arranged at the end of the needle bar; 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. The limiting element protrudes relative to the needle body, and the upper surface of the protruding part is flush.

2. A crochet needle structure capable of stably transferring loops according to claim 1, characterized in that: The limiting element is either an integrated structure with the needle body, or an extension of the mounting portion of the needle turning piece, or a separate element connected to the needle body.

3. A crochet needle structure capable of stably transferring loops according to claim 2, characterized in that: When the limiting element and the needle body are an integrated structure, they are distributed along the side of the installation groove and protrude relatively.

4. A crochet needle structure capable of stably transferring loops according to claim 2, characterized in that: When the limiting element is an extension of the needle turning piece installation portion, the needle turning piece extends from the installation groove toward the side of the needle body to form a limiting element protruding relative to the needle body.

5. The crochet needle structure capable of stably transferring loops according to claim 2, characterized in that: When the limiting element is arranged on the needle body as a separate element, a recessed limiting groove is opened on the side of the installation groove, and the limiting element is arranged in the limiting groove either continuously or discontinuously.

6. The crochet needle structure capable of stably transferring loops according to claim 1, characterized in that: A limiting element is also arranged on one side of the needle body away from the mounting groove.

7. The crochet needle structure capable of stably transferring loops according to claim 1, characterized in that: The needle bar is provided with a receiving groove, and the receiving groove is used for arranging the end of the needle turning piece.

8. The crochet needle structure capable of stably transferring loops according to claim 1, characterized in that: The limiting elements are distributed along the side of the installation groove, and the total length thereof is greater than or equal to 1 mm.

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