Crochet hook structure for needle turning

Abstract

The utility model relates to the field of flat knitting machines, in particular to a crochet hook structure for needle turning, which comprises a needle body, a mounting groove is formed in the needle body, and the mounting groove is used for arranging a mounting part of a needle turning sheet; 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 part is arranged on one side, corresponding to the needle rod, of the needle body, and the limiting part protrudes relative to the needle body. 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 utility model relates to a flat knitting machine field, especially to a hook needle structure for needle turning. BACKGROUND

[0002] Computer flat knitting machine is a double needle plate weft knitting machine, through the head and the cam mechanism set on the head cam triangle bottom plate, that is, the cam system in the process of reciprocating along the guide rail of the head, drive the knitting needle set in the needle bed (needle plate) needle groove up and down movement along the needle groove, complete the knitting of the fabric under the cooperation of the cam mechanism and the pulling mechanism.

[0003] Among them, the knitting needle includes the composite needle of needle hook and tongue needle separation, also has the ordinary hook needle of tongue needle pivot connection below the needle hook, in the structure of the latter, the turning needle piece (transfer piece) for transferring is set on the side of the needle body, the end thereof extends to the needle bar below the needle hook, and a certain gap is formed between the needle bar, that is, the turning needle piece is used for expanding the loop when the loop is transferred between the front and rear needle beds to facilitate the insertion of the loop needle.

[0004] But with the improvement of knitting requirements, the distribution of knitting needles is more and more dense, so the gap between the turning needle piece and the needle bar is required to be as narrow as possible to reduce the occupied space, so if the knitting needle is affected by the vibration caused by the working state of the needle bed during the transfer, the loop needle (that is, the knitting needle on the other side) cannot enter the gap, which will lead to the failure of the transfer. The knitting needle is set in the needle groove, and the greater the gap between the knitting needle and the needle groove, the greater the influence of vibration on the knitting needle, but 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 makes further research on this and develops a hook needle structure for needle turning, and the present case is generated. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a hook needle structure for needle turning, improving the operation accuracy during the transfer and ensuring the smooth transfer.

[0007] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0008] A hook needle structure for needle turning, comprising

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

[0010] The needle bar is connected with the needle body, and the end of the needle bar is provided with a needle hook;

[0011] A limiting part is arranged on the side of the needle body corresponding to the needle bar, and the limiting part is protruded relative to the needle body.

[0012] Although traditional physics considers that the friction force is independent of the contact area based on the Amonton-Coulomb friction model, in the 1950s, Bowden and Tabor of Cambridge University cooperated together, and they considered that the friction force is related to the real contact area; in 2009, Szlufarska et al. of the University of Wisconsin in the United States proved by molecular dynamics simulation that the friction force is linearly dependent on the number of atoms interacting in the contact, and it is shown that the linear relationship between the macroscopically observed friction force and the contact area can be extended to the nanoscale.

[0013] According to the practical production experience of the applicant, by setting a limited protrusion, the gap between the needle and the needle groove is reduced (which can be regarded as direct contact, not interference fit), but other parts of the needle still have a certain gap with the needle groove, so that the needle can slide in the needle groove and can not shake left and right when the needle bed works, thereby improving the running stability of the needle and ensuring the transfer accuracy. If the needle is thickened as a whole, there is no gap between the needle and the needle groove, which will cause the needle to be unable to move or difficult to move in the needle groove.

[0014] Further, the limiting part is integrally formed with the needle body, or is an extension of the needle turning piece mounting part, or is a separate element arranged on the needle body.

[0015] The above scheme is the main way to form the limiting part.

[0016] Further, the limiting element is distributed along the side edge of the mounting groove, and the total length is greater than or equal to 1mm.

[0017] The limiting element itself can be formed by continuous or discontinuous structure, and the total length is set to ensure that the limiting element can make the needle run stably.

[0018] Further, when the limiting part is integrally formed with the needle body, it is continuously distributed along the side edge of the mounting groove.

[0019] Further, when the limiting part is an extension of the needle turning piece mounting part, the needle turning piece extends from the mounting groove to the side edge of the needle body to form the limiting part.

[0020] Further, when the limiting part is arranged on the needle body as a separate element, a limiting groove is provided on the side edge of the mounting groove, and the limiting part is arranged in the limiting groove in a continuous or discontinuous manner.

[0021] Further, the side edge of the needle body away from the mounting groove is also provided with a limiting part.

[0022] The limiting part is arranged on the other side, which is far away from the needle turning piece. When arranged separately, it is not as effective as the one arranged on the side edge of the mounting groove in stabilizing the needle, so it is generally arranged at the same time based on the foregoing.

[0023] Further, the needle rod is provided with a containing groove for containing the end of the turning needle piece.

[0024] Compared with the prior art, the present application has the following advantages:

[0025] The needle is prevented from being stuck in the needle groove. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic view of embodiment one;

[0027] Figure 2 is a schematic view of embodiment one;

[0028] Figure 3 is a schematic view of embodiment two;

[0029] Figure 4 is a schematic view of embodiment three;

[0030] Figure 5 is a schematic view of embodiment four;

[0031] Figure 6 is a schematic view of embodiment five;

[0032] REFERENCE NUMERALS

[0033] needle body 1, mounting groove 11, mounting portion 12 of the turning needle piece,

[0034] limiting portion 13, limiting groove 14;

[0035] needle rod 2, containing groove 21, needle hook 22. DETAILED DESCRIPTION

[0036] The present application will be further described below in conjunction with the drawings and specific embodiments.

[0037] In the following specific embodiments, only the part of the crochet needle in the knitting needle is shown, i.e. the structure of the turning needle hook, which comprises a needle body 1 and a needle rod 2, the needle body 1 is provided with a mounting groove 11 for mounting the mounting portion 12 of the turning needle piece; the needle rod is connected with the needle body, and the end of the needle rod is provided with a needle hook 22; the needle rod is provided with a containing groove 21 for containing the end of the turning needle piece; the above structure is the basic structure of the crochet needle.

[0038] Embodiment one:

[0039] As Figure 1 , Figure 2As 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 portion 13 is formed on the side of the needle body, which 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 portion to accommodate the limiting portion.

[0040] Example 2:

[0041] 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 needle body side, a continuous and narrow limiting part 13 is formed by protruding upward. In this embodiment, the limiting part and the needle body are an integral structure.

[0042] Example 3:

[0043] like Figure 4 As shown, this embodiment refers to Embodiment 2, but is not limited to Embodiment 2. A limiting part 13 is also provided on the side of the needle body away from the mounting groove.

[0044] Example 4:

[0045] like Figure 5 As shown in the enlarged view of the crochet hook (excluding the turn-up piece), in this embodiment, the limiting part 13 is an independent component embedded in a narrow limiting groove. From an overall structural perspective, it is the same as in Embodiment 2. In actual processing, although this embodiment requires milling the limiting groove 14 into the hook body, 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 part is narrow, making direct one-piece molding difficult.

[0046] Example 5:

[0047] like Figure 6 As shown, which is also a partial enlarged view of the crochet hook, in this embodiment, the limiting part 13 is formed by riveting several independent components onto the hook body. The shape of the independent components is not limited to a circle. In this embodiment, a circle is used as an illustration, and its upper surface is also higher than the surface of the hook body.

[0048] The processing difficulty of this embodiment is also lower than that of Embodiment 2.

[0049] The limiting part in all the above embodiments cannot obstruct the gap required during the ring shifting. At the same time, all terms such as "upper," "lower," "left," "right," and "middle" used in this utility model are for reference only and are not absolute limitations. Any non-substantial modifications made using this utility model shall be considered as infringing on the protection scope of this utility model.

Claims

1. A crochet structure for turning a needle, comprising a needle body, the needle body being provided with a mounting groove for mounting a turning piece; a needle stem connected to the needle body, the needle stem being provided at an end thereof with a needle hook; characterized in that a limiting part is provided on the side of the needle body corresponding to the needle stem, the limiting part being raised relative to the needle body.

2. The crochet structure for turning a needle according to claim 1, characterized in that the limiting part is either an integral part of the needle body, or an extension of the mounting part of the turning piece, or a separate element provided on the needle body.

3. The crochet structure for turning a needle according to claim 1, characterized in that the limiting element is distributed along the side of the mounting groove, and has a total length of 1 mm or more.

4. The crochet structure for turning a needle according to claim 2, characterized in that when the limiting part is an integral part of the needle body, it is continuously distributed along the side of the mounting groove.

5. The crochet structure for turning a needle according to claim 2, characterized in that when the limiting part is an extension of the mounting part of the turning piece, the turning piece extends from the mounting groove to the side of the needle body to form the limiting part.

6. The crochet structure for turning a needle according to claim 2, characterized in that when the limiting part is provided as a separate element on the needle body, a limiting groove is provided on the side of the mounting groove, and the limiting part is either continuously or discontinuously provided in the limiting groove.

7. The crochet structure for turning a needle according to claim 1, characterized in that a limiting part is also provided on the side of the needle body away from the mounting groove.

8. The crochet structure for turning a needle according to claim 1, characterized in that a receiving groove is provided on the needle stem, the receiving groove being used to mount an end of the turning piece.

Images