Crochet hook for winding machine
By setting guide and clearance parts on the hook, the problem of the hook being unable to hook the line normally is solved, and a stable and accurate hooking process is achieved, which improves the production efficiency and stability of the winding machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LISHENG TECHNOLOGY & PRECISION MACHINERY CO LTD
- Filing Date
- 2025-03-12
- Publication Date
- 2026-05-12
AI Technical Summary
In the production process of inductor coils, the small adjustable range of the hook and the uncertainty of the copper wire position cause the hook to be unable to hook the wire normally, affecting the continuity and efficiency of production.
Design a hook for a winding machine. The hook body has an inclined guide part that crosses the central axis of the hook and guides the copper wire to the hook opening. This avoids rotation and allows for hooking. Combined with a relief part and a circumferential limiting structure, the stability and accuracy of the hook are ensured.
It improves the stability of the hook wire and the continuity of production, enhances the working efficiency of the winding machine, reduces copper wire wear, and ensures the accuracy and fault tolerance of the hook wire.
Smart Images
Figure CN224232508U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic winding processing technology of inductor coils, and specifically to a hook for a winding machine. Background Technology
[0002] The hook is an important component used in the production of inductor coils. In one type of hooking method on automated winding machines, the center of the hook is not located at the axis of the magnetic ring, but rather offset from the central axis. As the hook rises from below the magnetic ring to above it and reaches one side of the copper wire, it moves upwards, allowing the hook opening to pass over the copper wire. Then, the hook rotates 90 degrees to one side, allowing the copper wire to enter the hook opening. Subsequently, the hook moves downwards, hooking the copper wire from above the magnetic ring through the inner hole to below, thus winding the copper wire around the magnetic ring. See [link to relevant documentation]. Figure 5 As shown.
[0003] Two problems exist in this process: First, due to the small internal space of the magnetic ring, the adjustable range of the hook is limited, and the copper wire may not be in the ideal hooking position, possibly veering to the left or right. Second, the position of the hook may deviate from the target position due to mechanical assembly adjustments, deformation of the hook itself, or collisions caused by the small internal space of the magnetic ring. Both of these problems can cause the copper wire to slip to the back of the hook, preventing the hook from hooking the line. Figure 6 As shown, for example, if the requirement is that the copper wire is to the left of the hook after the hook rises, the copper wire must be to the left of the hook's center line before the hook rises (e.g., positions a and b). If the copper wire is in the middle position c, there is uncertainty; the hook may or may not be able to hook the line. If the copper wire is slightly to the right (e.g., position d), it will slide to the right of the hook. Since the hook is mounted on the drive structure, it can only rotate 90° to one side. Therefore, the hook cannot hook the copper wire located to the right of the hook, causing production interruption and affecting the normal production of the inductor coil. Utility Model Content
[0004] This utility model addresses the existing technical problems by providing a hook for a winding machine.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A hook for a winding machine includes a hook body, a connecting part at the lower end of the hook body, a hook head at the upper end, a hook opening between the hook head and the hook body, and an inclined guide part at the top of the hook head, the guide part crossing the central axis of the hook body.
[0006] Based on the above technical solution, the present invention can be further improved as follows:
[0007] Preferably, the guide portion is located on the side where the hook opening is located, and the guide portion is inclined downwards towards the hook opening. This allows the copper wire spanning the entire diameter of the hook to be guided to the hook opening side. With this structure, the copper wire falls directly into the hook opening after passing the guide portion, achieving hooking without rotating the hook, thus improving hooking efficiency.
[0008] Preferably, the guide portion is located on the side where the hook opening is located. This structure can guide the copper wire spanning the entire diameter of the hook to a specific side of the hook opening, allowing the hook to be fixed in a certain direction and rotated by a fixed angle to hook the line.
[0009] Furthermore, the inner surface of the hook opening is a smooth arc. Because the hook opening is subsequently involved in hooking the wire and will generate sliding friction with the copper wire, setting the inner surface to a smooth arc can reduce wear on the surface of the copper wire during the hooking process.
[0010] Preferably, the tilt angle β of the guide portion is 30°-70°.
[0011] Preferably, the hook body is provided with a clearance portion, which is located on the same side as the hook opening and extends upward to the hook opening.
[0012] Preferably, the connecting part is provided with a card interface, and the connecting part is also provided with a circumferential limiting structure to prevent the hook needle from rotating circumferentially during operation, which would affect the accurate hooking action.
[0013] The beneficial effects of this utility model are: by setting a guide part on one side of the hook head, the highest point of the hook is offset from the center line of the hook. When there is a small deviation in the position of the copper wire or a deviation in the adjustment position, the copper wire can still be guided to the same side of the hook under the action of the guide part, ensuring that the hook can hook the wire stably and accurately, making the production process more tolerant of errors, greatly improving the stability and continuity of production, and improving the working efficiency of the winding machine. Attached Figure Description
[0014] Figure 1 This is a front view of the crochet hook of this utility model;
[0015] Figure 2 This is a side view of the crochet hook of this utility model;
[0016] Figure 3 This is a three-dimensional schematic diagram of the crochet hook of this utility model;
[0017] Figure 4 This is a schematic diagram illustrating the use of the crochet hook of this utility model;
[0018] Figure 5 This is a schematic diagram illustrating the use of crochet hooks in existing technology;
[0019] Figure 6 This is a schematic diagram illustrating the positional relationship between the hook and the copper wire in existing technology.
[0020] The attached diagram is labeled as follows: 1. Crochet hook body; 2. Hook head; 3. Guide part; 4. Connecting part; 5. Clearance part. Detailed Implementation
[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0022] like Figures 1 to 4 As shown, this utility model discloses a hook for a winding machine, including a hook body 1. The lower end of the hook body 1 is provided with a connecting part 4, and the upper end is provided with a hook head 2. A hook opening is provided between the hook head 2 and the hook body 1. The inner surface of the hook opening is a smooth arc. The top of the hook head 2 is provided with a guide part 3 that slopes downwards to the right side of the hook opening. The guide part 3 crosses the central axis of the hook body 1. The guide part 3 can guide the copper wire within the diameter range of the hook head to the right side of the hook head 2, ensuring that the hook head 2 can hook the line normally. See [reference needed]. Figure 1 and 4 As shown, this ensures the structural strength of the hook head 2. The guide part 3 can be tilted to the left or right; in this example, it is tilted to the lower right (the hook opening faces forward). The angle between the guide part 3 and the hook opening corresponds to the rotation angle of the hook body 1. In this embodiment, after the hook body 1 moves upward, it rotates 90° and then moves downward to hook the line. Therefore, the guide part 3 is set at 90° to the hook opening to ensure that the hook head 2 can hook the line normally.
[0023] The tilt angle β of the guide part 3 is 30°-70°. In this embodiment, the tilt angle β is 50°. During the upward movement of the hook body 1, all copper wires are guided to the same side of the hook body 1, ensuring that the hook head 2 can hook the line normally.
[0024] In this embodiment, specifically, the hook body 1 is provided with a clearance portion 5, which is located on the same side as the hook opening and extends upward to the hook opening. This ensures that there is sufficient space at the hook opening to accommodate the copper wire.
[0025] In an optional embodiment, the guide portion 3 is located on the side where the hook opening is located, and the guide portion 3 is inclined downwards towards the hook opening. The copper wire falls directly into the hook opening after passing over the guide portion, achieving hooking without rotating the hook hook, thus improving hooking efficiency.
[0026] The connecting part 4 is provided with an internal thread, which is set along the length of the connecting part 4. This facilitates the installation of the hook on the winding machine using tools such as a wrench, improving ease of use. Due to the threaded connection, the orientation of the hook opening must be adjusted to ensure that the angle requirements during operation are met. This orientation can be adjusted by fine-tuning with a wrench or by adjusting the angle of the external rotating mechanism. Therefore, a better solution is to use a snap-fit interface to fix the hook body 1. Furthermore, the connecting part 4 is provided with a circumferential limiting mechanism to prevent the hook from rotating in the circumferential direction. Thus, the hook body 1 can be fixed more efficiently.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hook for a winding machine, characterized in that, The system includes a hook body (1), with a connecting part (4) at the lower end and a hook head (2) at the upper end. A hook opening is provided between the hook head (2) and the hook body (1). The top of the hook head (2) is a guide part (3) that is inclined in one direction. The guide part (3) crosses the central axis of the hook body (1). The guide part (3) is located on the side where the hook opening is located. The inclination angle β of the guide part (3) is 30°-70°.
2. The hook for a winding machine according to claim 1, characterized in that, The guide part (3) is located on the side where the hook opening is located, and the guide part (3) is inclined downward in the direction of the hook opening.
3. The hook for a winding machine according to claim 1, characterized in that, The inner surface of the hook opening is a smooth arc.
4. The hook for a winding machine according to claim 1 or 2, characterized in that, The hook body (1) is provided with a clearance part (5), which is located on the same side as the hook opening and extends upward to the hook opening.
5. The hook for a winding machine according to claim 1, characterized in that, The connecting part (4) is provided with a card interface and a circumferential limiting structure.