Thread hooking device for sewing machine
By designing a sewing machine thread hook with split set, the thread hook can be detached and replaced, and combined with the thread hook frame and the needle groove structure, the function of outlining the pattern thread is realized, solving the problem of the thread hook being worn in the existing technology that the shuttle body needs to be replaced. Reduces maintenance costs and improves equipment stability.
Patent Information
- Application Number
- CN202421000609.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The wire hook of the existing sewing machine thread hook is integrated with the shuttle body, which requires replacement of the entire shuttle body when the wire hook is worn, which is relatively expensive.
A wire hook is designed with a split-body setting, the wire hook is set separately from the shuttle body, and the wire hook can be detached and replaced. The wire hook is used to achieve flexible swing of the wire hook, and supports outlining pattern lines.
It reduces maintenance costs, improves the utilization rate of metal resources, realizes the effect of one hooker completing the functions of two hookers, and improves the stability of the equipment.
Smart Images
Figure CN222434804U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewing machines, in particular to a thread hook for sewing machines. Background Art
[0002] The thread hook is used in a sewing machine, which includes a shuttle body and a shuttle core. The shuttle body is provided with a thread hook. When in use, the thread hook is driven to rotate by the rotation of the shuttle body to hook the thread. However, in the existing thread hook, the thread hook is integrally provided with the shuttle body. The thread hook will wear out due to long-term use, so that the entire shuttle body needs to be replaced, and the cost is relatively high. Summary of the invention
[0003] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a thread hook for a sewing machine, in which the thread hook and the shuttle body are separately arranged. When the thread hook is worn to the point of affecting use, the thread hook can be directly removed and replaced, and its maintenance cost is relatively low.
[0004] The utility model discloses a thread hook for a sewing machine, comprising a shuttle body and a shuttle core arranged on the shuttle body, wherein the shuttle body is provided with a thread hook, and the thread hook rotates synchronously with the shuttle body, and is characterized in that a thread hook frame is detachably connected to the shuttle body, and the thread hook is arranged on the thread hook frame.
[0005] By adopting the above technical solution, when in use, the shuttle body is assembled on the sewing machine. When the sewing machine drives the shuttle body to rotate, the thread hook can rotate to hook the thread. When the thread hook is worn out due to long-term use, it can be removed and replaced through the thread hook frame, thereby reducing maintenance costs, improving the utilization rate of metal resources, and meeting the needs of social development.
[0006] The utility model is further configured as follows: a needle drop groove is arranged on the shuttle body corresponding to the position of the thread hook rack, the thread hook rack is swingably arranged on the shuttle body, and a needle drop hole is arranged on the thread hook rack corresponding to the position of the needle drop groove, and an arc-shaped or inclined guide surface is arranged on the outer edge of the needle drop hole.
[0007] By adopting the above technical scheme, the existing sewing machines can only draw straight lines. If it is necessary to draw a back and forth zigzag line, two thread hooks need to be staggered and coordinated. When the sewing machine of the present application drops the needle, it cooperates with the guide surface to push the thread hook frame to swing, so that the thread hook swings back and forth, thereby outlining a pattern line. One thread hook completes the functions of two thread hooks, and the stability is also better.
[0008] The utility model is further configured as follows: a guide groove is provided on the shuttle body corresponding to the tail of the wire hook frame, and the tail of the wire hook frame can slide relative to the guide groove.
[0009] By adopting the above technical solution, the wire hook frame can be guided when it swings, thereby preventing it from deviating.
[0010] The utility model is further configured as follows: a partition plate is arranged on the shuttle body at a position corresponding to the needle drop groove, and the partition plate divides the needle drop groove into a first needle drop area and a second needle drop area.
[0011] By adopting the above technical solution, the needle can be more stable when dropping, and the structural layout is more reasonable.
[0012] The utility model is further configured as follows: a blocking surface for limiting the swing amplitude of the wire hook frame is arranged inside the guide groove, and a blocking block cooperating with the blocking surface is arranged on the wire hook frame.
[0013] The adoption of the above technical solution can prevent the wire hook rack from swinging excessively, making it more stable when in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 for Figure 1 Another perspective structural diagram;
[0016] Figure 3 This is a schematic diagram of the shuttle structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the wire hook frame of the utility model;
[0018] Figure 5 This is a schematic structural diagram of the utility model from another viewing angle. DETAILED DESCRIPTION
[0019] The following is a detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings:
[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0021] The utility model discloses a thread hook for a sewing machine, comprising a shuttle body 1 and a shuttle core 2 arranged on the shuttle body 1, wherein the shuttle body 1 is provided with a thread hook 3, and the thread hook 3 rotates synchronously with the shuttle body 1. In an implementation case of the utility model, the shuttle body 1 is detachably connected with a thread hook frame 4, and the thread hook 3 is arranged on the thread hook frame 4.
[0022] By adopting the above technical solution, when in use, the shuttle body 1 is assembled on the sewing machine. When the sewing machine drives the shuttle body 1 to rotate, the thread hook 3 can rotate to hook the thread. When the thread hook 3 is worn out due to long-term use, it can be removed and replaced through the thread hook frame 4, thereby reducing the maintenance cost, improving the utilization rate of metal resources, and meeting the needs of social development.
[0023] A needle drop groove 5 is arranged on the shuttle body 1 at a position corresponding to the thread hook frame 4, and the thread hook frame 4 is swingably arranged on the shuttle body 1, and a needle drop hole 6 is arranged on the thread hook frame 4 at a position corresponding to the needle drop groove 5, and an arc-shaped or inclined guide surface 7 is arranged on the outer edge of the needle drop hole 6. The existing sewing machine can only draw straight lines. If it is necessary to draw a zigzag line back and forth, two thread hooks need to be staggered and coordinated. When the sewing machine of the present application drops the needle, it cooperates with the guide surface 7 to push the thread hook frame 4 to swing, so that the thread hook 3 swings back and forth, thereby outlining a pattern line (for example, a zigzag line, a frame-shaped line, an eight-shaped line or a straight line, which can be coordinated with the transmission mechanism of the sewing machine), and one thread hook completes the functions of two thread hooks, and the stability is also relatively good.
[0024] A guide groove 8 is provided on the shuttle body 1 corresponding to the tail of the thread hook frame 4. The tail of the thread hook frame 4 can slide relative to the guide groove 8 and can guide the thread hook frame 4 when it swings, thereby preventing it from deflecting.
[0025] A partition plate 9 is provided on the shuttle body 1 at a position corresponding to the needle drop groove 5. The partition plate 9 divides the needle drop groove 5 into a first needle drop area 51 and a second needle drop area 52, which can make the needle drop more stable and the structural layout more reasonable.
[0026] The guide groove 8 is internally provided with a blocking surface 10 for limiting the swing amplitude of the thread hook rack 4, and the thread hook rack 4 is provided with a blocking block 20 cooperating with the blocking surface 10, so as to prevent the thread hook rack 4 from swinging excessively and make it more stable when in use. The blocking surface 10 is most preferably arranged in the middle of the guide groove 8, and the blocking block 20 is arranged at the side position of the thread hook rack 4. This scheme requires that one side of the shuttle body cooperates with the sewing machine to limit the swing amplitude of the thread hook rack 4 in one direction, and the blocking block 20 cooperates with the blocking surface 10 to limit the swing amplitude in the other direction. Of course, the limitation can also be achieved by cooperating with the long groove and the rod body.
Claims
1. A thread hook for a sewing machine, comprising a shuttle body (1) and a shuttle core (2) arranged on the shuttle body (1), wherein the shuttle body (1) is provided with a thread hook (3), and the thread hook (3) rotates synchronously with the shuttle body (1), characterized in that: The shuttle body (1) is detachably connected to a wire hook frame (4), the wire hook (3) is arranged on the wire hook frame (4), a needle drop groove (5) is arranged on the shuttle body (1) at a position corresponding to the wire hook frame (4), the wire hook frame (4) is swingably arranged on the shuttle body (1), and a needle drop hole (6) is arranged on the wire hook frame (4) at a position corresponding to the needle drop groove (5), and an arc-shaped or inclined guide surface (7) is arranged on the outer edge of the needle drop hole (6).
2. A thread hook for a sewing machine according to claim 1, characterized in that: A guide groove (8) is provided on the shuttle body (1) corresponding to the tail of the thread hook frame (4), and the tail of the thread hook frame (4) can slide relative to the guide groove (8).
3. A thread hook for a sewing machine according to claim 1 or 2, characterized in that: A partition plate (9) is provided on the shuttle body (1) at a position corresponding to the needle drop groove (5), and the partition plate (9) divides the needle drop groove (5) into a first needle drop area (51) and a second needle drop area (52).
4. The thread hook for a sewing machine according to claim 2, characterized in that: A blocking surface (10) for limiting the swing amplitude of the wire hook frame (4) is arranged inside the guide groove (8), and a blocking block (20) cooperating with the blocking surface (10) is arranged on the wire hook frame (4).