Crochet needle

Abstract

The utility model discloses a crochet hook which comprises a hook body and a columnar ceramic block, the upper end of the hook body is connected with a bent hook, the bent hook is bent towards the lower end of the hook body, a hooking space is defined by the bent hook and the upper end of the hook body, the ceramic block is fixedly arranged in the hooking space, and the axis of the ceramic block and the axial line of the bent hook are located on the same plane. The axis of the ceramic block intersects with the axis of the needle body, and when the needle body is driven by corresponding driving equipment to move in the axial direction to hook a copper wire, the outer wall of the cambered surface of the ceramic block replaces the hook to make contact with the copper wire, so that direct abrasion of the inner side of the hook is avoided, the service life of the abrasion-resistant ceramic block is longer, and the situation that a crochet hook is frequently replaced by a winding machine can be avoided; and the production efficiency of the inductance coil is improved.

Description

Technical Field

[0001] This utility model relates to the field of automated winding technology, and in particular to a hook needle. Background Technology

[0002] In recent years, with the continuous development of the field of intelligent technology, inductor coils have been widely used. However, some inductor coils are still wound manually, which not only has low processing efficiency but also cannot guarantee production quality and processing quality. Therefore, winding machines for making inductor coils have appeared on the market. These winding machines are equipped with retractable hooks, which hook copper wire through the bent end of the hook and wind the copper wire onto the mounting ring.

[0003] However, most existing crochet hooks are made of plastic, and the bent end of the hook is easily worn during the process of hooking copper wire, which requires the winding machine to replace the hook frequently, affecting production efficiency. Utility Model Content

[0004] In view of this, the present invention provides a hook to solve the problem that most hooks in the prior art are made of plastic, and the bent end of the hook is easily worn during the process of hooking copper wire, which leads to the need for frequent replacement of hooks by the winding machine and affects production efficiency.

[0005] To achieve one, some, or all of the above objectives or other objectives, this utility model proposes a hook, comprising a needle body and a cylindrical ceramic block. The upper end of the needle body is connected to a hook, which bends toward the lower end of the needle body. The hook and the upper end of the needle body form a hooking space. The ceramic block is fixedly disposed within the hooking space. The axis of the ceramic block and the axial line of the hook are in the same plane, and the axis of the ceramic block intersects with the axis of the needle body.

[0006] Preferably, the hook includes a first bending portion and a second bending portion. The first bending portion is formed by bending the upper end of the needle body to one side, and the second bending portion is formed by bending the end of the first bending portion away from the needle body downward. The upper end of the needle body, the first bending portion, and the second bending portion enclose a hooking space.

[0007] Preferably, the ceramic block is a hollow structure with both ends open, and a limiting post is provided in the hook space. One end of the limiting post is fixedly connected to the upper end of the needle body, and the other end of the limiting post is fixedly connected to the end of the hook away from the needle body. There is an angle between the axis of the limiting post and the axis of the needle body, and the angle is between 80 degrees and 90 degrees. The ceramic block is sleeved on the limiting post.

[0008] Preferably, the needle body, hook, and limiting post are integrally formed.

[0009] Preferably, the needle body, hook, and limiting post are all made of plastic.

[0010] Preferably, the needle body has a built-in strip-shaped metal reinforcing core, which is arranged along the length of the needle body. The upper end of the metal reinforcing core passes through the limiting post and is arranged in the same direction as the limiting post.

[0011] Preferably, the ceramic block has a smooth surface.

[0012] Preferably, the ceramic block has a circular cross-section.

[0013] Preferably, the cross-section of the lower end of the needle body is hexagonal.

[0014] Preferably, the lower end of the needle body has a connecting hole along the axial direction.

[0015] Implementing the embodiments of this utility model will have the following beneficial effects:

[0016] After adopting the above-mentioned hook, when the needle body moves axially to hook copper wire under the drive of the corresponding drive device, the outer arc wall of the ceramic block will replace the hook to contact the copper wire, thereby avoiding direct wear on the inner side of the hook. Moreover, the wear-resistant ceramic block has a longer service life, which can avoid the winding machine from frequently replacing the hook and improve the production efficiency of inductor coils. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] in:

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is an exploded view of the present invention.

[0021] In the diagram: 1. Needle body; 11. First bend; 12. Second bend; 13. Limiting post; 14. Connecting hole; 2. Ceramic block; 3. Hook; 4. Hooking space. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figure 1-2 As shown, a hook includes a needle body 1 and a cylindrical ceramic block 2. The upper end of the needle body 1 is connected to a hook 3, which bends towards the lower end of the needle body 1. The hook 3 and the upper end of the needle body 1 form a hooking space 4. The ceramic block 2 is fixedly disposed in the hooking space 4. The axis of the ceramic block 2 is in the same plane as the axial line of the hook 3, and the axis of the ceramic block 2 intersects with the axis of the needle body 1. When the needle body 1 moves axially to hook copper wire under the drive of a corresponding driving device, the outer arc surface of the ceramic block 2 will replace the hook 3 to contact the copper wire, thereby avoiding direct wear on the inner side of the hook 3. The wear-resistant ceramic block 2 has a longer service life, which can avoid frequent replacement of hooks in the winding machine and improve the production efficiency of inductor coils.

[0026] In one embodiment, a slot is provided at the upper end of the ceramic block 2, and a locking block is provided on the inner side of the connection end between the hook 3 and the needle body 1. During assembly, the ceramic block 2 can be locked and fixed in the hook space 4 by locking the locking block and the slot (not shown in the figure).

[0027] Furthermore, the hook 3 includes a first bending portion 11 and a second bending portion 12. The first bending portion 11 is formed by bending the upper end of the needle body 1 to one side, and the second bending portion 12 is formed by bending the end of the first bending portion 11 away from the needle body 1 downward. The upper end of the needle body 1, the first bending portion 11 and the second bending portion 12 enclose the hook space 4.

[0028] Furthermore, the ceramic block 2 is a hollow structure with both ends open. A limiting post 13 is provided in the hooking space 4. One end of the limiting post 13 is fixedly connected to the upper end of the needle body 1, and the other end of the limiting post 13 is fixedly connected to the end of the hook 3 away from the needle body 1. There is an angle between the axis of the limiting post 13 and the axis of the needle body 1, which is between 80 degrees and 90 degrees. The ceramic block 2 is fitted on the limiting post 13. The limiting post 13 not only connects the upper end of the needle body 1 to the end of the hook 3 away from the needle body 1, thus strengthening the structural stability of the hook 3, but also provides stable support for the ceramic block 2 when the lower side wall of the ceramic block 2 contacts the copper wire, making the ceramic block 2 hook the copper wire more powerfully.

[0029] In one embodiment, the cross-section of the limiting post 13 is circular, and the ceramic block 2 is coaxially sleeved on the limiting post 13 and can rotate around the limiting post 13 so that the ceramic block 2 can rotate during the process of hooking the copper wire, which facilitates uniform wear on its circumference.

[0030] In one embodiment, the cross-section of the limiting post 13 is a regular polygon or an irregular shape. The ceramic block 2 is fitted onto the limiting post 13, and the contour of its inner wall matches that of the limiting post 13, so as to restrict the rotation of the ceramic block 2 relative to the limiting post 13 and fix the ceramic block 2 on the limiting post 13.

[0031] Furthermore, the needle body 1, hook 3, and limiting post 13 are integrally formed to improve the connection strength of the three, enhance the tensile strength of the hook 3, and extend the service life of the hook 3.

[0032] Furthermore, the needle body 1, the hook 3, and the limiting post 13 are all made of plastic so that the ceramic block 2 can be fitted onto the limiting post 13 while the three are being injection molded, thereby improving production efficiency and reducing production costs.

[0033] Furthermore, the needle body 1 has a built-in strip-shaped metal reinforcing core (not shown in the attached figure). The metal reinforcing core is arranged along the length direction of the needle body 1. The upper end of the metal reinforcing core passes through the limiting post 13 and is arranged in the same direction as the limiting post 13. The metal reinforcing core can also be directly fixed in the needle body 1 and the limiting post 13 during injection molding. This can improve the structural strength of the needle body 1 and the limiting post 13, enhance the tensile strength of the limiting post 13 in the axial direction of the needle body 1, and extend the service life of the limiting post 13.

[0034] Furthermore, the surface of ceramic block 2 is smooth to reduce friction between the surface of ceramic block 2 and the copper wire, thereby reducing wear on both.

[0035] Furthermore, the cross-section of ceramic block 2 is circular, so that the copper wire can slide along the arc-shaped outer wall of ceramic block 2 during the process of hooking the copper wire, making the hooking process smoother.

[0036] Furthermore, the lower end of the needle body 1 has a hexagonal cross-section so that the lower end of the needle body 1 can be inserted into the slot corresponding to the moving end of the drive device (not shown in the figure). The rotation of the needle body 1 is restricted by the slot whose contour matches the lower end of the needle body 1, which plays a role in assisting the circumferential positioning of the needle body 1.

[0037] Furthermore, the lower end of the needle body 1 is provided with a connecting hole 14 along the axial direction. The screw on the movable end of the drive device can be screwed into the connecting hole 14, thereby connecting the needle body 1 to the connecting hole 14 through the screw and fixing it on the movable end of the drive device.

[0038] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A crochet hook, characterized in that, include: Needle-shaped and columnar ceramic blocks; The upper end of the needle body is connected to a hook, which bends toward the lower end of the needle body. The hook and the upper end of the needle body form a hooking space. The ceramic block is fixedly installed in the hooking space. The axis of the ceramic block and the axial line of the hook are in the same plane, and the axis of the ceramic block intersects with the axis of the needle body.

2. A crochet hook according to claim 1, characterized in that, The hook includes a first bending portion and a second bending portion. The first bending portion is formed by bending the upper end of the needle body to one side, and the second bending portion is formed by bending the end of the first bending portion away from the needle body downwards. The upper end of the needle body, the first bending portion and the second bending portion enclose a hooking space.

3. A crochet hook according to claim 1, characterized in that, The ceramic block is a hollow structure with both ends open. A limiting post is provided in the hook space. One end of the limiting post is fixedly connected to the upper end of the needle body, and the other end of the limiting post is fixedly connected to the end of the hook away from the needle body. There is an angle between the axis of the limiting post and the axis of the needle body, which is between 80 degrees and 90 degrees. The ceramic block is sleeved on the limiting post.

4. A crochet hook according to claim 3, characterized in that, The needle body, hook, and limiting post are integrally formed.

5. A crochet hook according to claim 4, characterized in that, The needle body, hook, and limiting post are all made of plastic.

6. A crochet hook according to claim 5, characterized in that, The needle body has a built-in strip-shaped metal reinforcing core, which is arranged along the length of the needle body. The upper end of the metal reinforcing core passes through the limiting post and is arranged in the same direction as the limiting post.

7. A crochet hook according to claim 1, characterized in that, The ceramic block has a smooth surface.

8. A crochet hook according to claim 1, characterized in that, The ceramic block has a circular cross-section.

9. A crochet hook according to claim 1, characterized in that, The cross-section of the lower end of the needle body is hexagonal.

10. A crochet hook according to claim 1, characterized in that, The lower end of the needle body has a connecting hole along the axial direction.

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