Connection structure of integrated shuttle and winding machine

Abstract

The utility model discloses a kind of connection structure of integrated shuttle and winding machine, integrated shuttle includes shuttle shell and shuttle core connected in the axle of shuttle shell, wherein several connecting holes are equipped on the outside of shuttle core, winding machine includes shuttle core connecting shaft, the first driving device of driving shuttle core connecting shaft horizontal reciprocating movement, the second driving device of driving shuttle core connecting shaft rotation, the end of shuttle core connecting shaft is equipped with several movable pegs with the plug-in cooperation of connecting hole, the end of shuttle core connecting shaft is fixed with the magnet with the magnetic attraction cooperation of shuttle core.The utility model provides a kind of connection structure of integrated shuttle and winding machine, which reduces the friction between shuttle core and shuttle shell while successfully driving shuttle core to rotate for winding.

Description

Technical Field

[0001] This utility model relates to the field of sewing auxiliary equipment technology, and in particular to a connection structure of an integrated shuttle and a winding machine. Background Technology

[0002] Existing bobbins and bobbin cases require disassembly and reassembly for winding. To address this, application number CN202323166489.3 discloses a bobbin-bobbin connection mechanism that prevents the bobbin from escaping and separating from the bobbin case, allowing for bobbin and bobbin case replacement and use without separation. To facilitate automatic winding, application number CN202222573418.4 discloses a device for winding bobs installed inside the bobbin case, enabling automatic feeding and winding of the integrated shuttle. To facilitate smooth rotation of the bobbin by the bobbin connecting shaft (i.e., the winding machine chuck), several connecting holes are provided on the outside of the bobbin, and several movable parts that mate with the connecting holes are provided at the end of the bobbin connecting shaft. Before winding, the bobbin connecting shaft moves in the direction of the bobbin, and the movable pin is inserted into the connecting hole on the bobbin. In order for the winding machine chuck to drive the bobbin to rotate together for winding without interfering with the winding, the movable pin can only enter the connecting hole slightly and cannot pass through the connecting hole. In order to precisely control the insertion depth of the two, the bobbin connecting shaft needs to press the bobbin tightly in the bobbin case during connection (that is, the inner side of the bobbin is close to the bottom plate of the bobbin case). By controlling the length of the movable pin, the precise insertion depth between the movable pin and the connecting hole can be achieved. However, in this way, when winding, because the bobbin is pressed tightly on the bottom plate of the bobbin case, the friction between the bobbin and the bobbin case is very large, and the bobbin body is prone to rapid wear, which affects the service life. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a connection structure between an integrated shuttle and a winding machine. The shuttle core connecting shaft can smoothly drive the shuttle core to rotate for winding while reducing the friction between the shuttle core and the shuttle shell, thus overcoming the shortcomings of the prior art.

[0004] The technical solution of this utility model is: a connection structure between an integrated shuttle and a winding machine. The integrated shuttle includes a shuttle shell and a bobbin that is transferred to the central shaft of the shuttle shell. The bobbin has several connecting holes on its outer side. The winding machine includes a bobbin connecting shaft, a first driving device for driving the bobbin connecting shaft to move horizontally back and forth, and a second driving device for driving the bobbin connecting shaft to rotate. The end of the bobbin connecting shaft is provided with several movable pins that are inserted into the connecting holes. The end of the bobbin connecting shaft is fixed with a magnet that magnetically attracts the bobbin.

[0005] Furthermore, the magnet is a permanent magnet.

[0006] Furthermore, the end of the bobbin connecting shaft is provided with a fixing pin that engages with the bobbin's central hole.

[0007] Furthermore, the magnet is fitted onto the fixing pin.

[0008] Furthermore, a retraction pin is slidably connected inside the bobbin connecting shaft, and the retraction pin slides along the axial direction of the bobbin connecting shaft to engage with the bobbin.

[0009] Further, a third drive device and a reset mechanism with an elastic element are included. The reset mechanism is connected to the ejector pin, which is pushed and slid to a position abutting the bobbin by the third drive device. During this process, the elastic element of the reset mechanism further deforms to generate elastic force, which can push the ejector pin to reset and remain in a position not abutting the bobbin.

[0010] By implementing this utility model, the bobbin connecting shaft is driven horizontally by the first driving device to the position where the movable pin and the bobbin's connecting hole are inserted and matched. At this position, the magnet contacts the bobbin and magnetically fixes it. The movable pin is slightly inserted into the connecting hole. When the bobbin is not in contact with the bobbin base plate, the second driving device drives the bobbin connecting shaft to rotate, which can smoothly drive the bobbin to rotate together for winding, reducing the friction between the bobbin and the bobbin case and extending the service life of the bobbin. Attached Figure Description

[0011] Figure 1 A schematic diagram of a single shuttle; Figure 2 This is a diagram showing the usage state of this utility model; Figure 3 This is a schematic diagram of the winding machine of this utility model; Figure 4 A schematic diagram showing the integrated shuttle and the shuttle core connecting shaft in the winding state; Figure 5 This is a schematic diagram showing the bobbin connecting shaft separated from the integrated bobbin.

[0012] The figure shows: 1. Shuttle shell; 2. Base plate; 3. Peripheral wall; 4. Fixed shaft; 5. Shuttle core; 6. Cylindrical part; 7, 7A flanges; 8. Elastic pressure plate; 9. Shuttle feeding mechanism; 10. Blocking part; 11. Shuttle core connecting shaft; 12. First drive device; 13. Second drive device; 14. Slide; 15. Machine base; 16. Connecting hole; 17. Integrated shuttle; 18. Movable pin; 19. Magnet; 20. Fixed pin; 21. Retraction pin; 22. Cylinder; 23. Retaining ring; 24. Return spring. Detailed Implementation

[0013] Embodiments of this utility model: such as Figure 1As shown, a connection structure between an integrated shuttle and a winding machine is disclosed. The integrated shuttle includes a shuttle housing 1 and a shuttle core 5 connected to the central shaft of the shuttle housing 1. The shuttle housing 1 is a cylindrical shape with one open end, including a base plate 2 and a peripheral wall 3. A hollow shaft is integrally formed on the base plate 2. The shuttle core 5 includes a cylindrical part 6 and flanges 7 and 7A located on both sides of the cylindrical part 6. The shuttle core 5 is inserted into the hollow shaft through the cylindrical part 6 and rotatably installed in the shuttle housing 1. An elastic pressure plate 8 with a blocking part 10 is provided on the outer side of the peripheral wall 3 of the shuttle housing 1. The peripheral wall 3 has a notch for the blocking part 10 to enter. The elastic pressure plate 8 is a metal sheet with a certain elastic deformation capability. One end of the elastic pressure plate 8 is fixed to the peripheral wall 3 of the bobbin 5, and the blocking part 10 is located at the other end of the elastic pressure plate 8. When the end with the blocking part 10 is lifted by external force, the bobbin 5 can be smoothly inserted into or removed from the bobbin case 1. After the external force is removed, the blocking part 10 of the elastic pressure plate 8 moves down and resets, limiting the inner flange 7 of the bobbin 5 between the base plate 2 and the blocking part 10. The distance between the base plate 2 and the blocking part 10 is greater than the thickness of the inner flange 7. While not affecting the rotation of the bobbin 5, the bobbin 5 can also slide a certain distance axially, but this prevents the bobbin 5 from continuing to move outward and separating from the bobbin case 1. Figure 2 As shown, the structure of the winding machine is similar to that disclosed in CN202222573418.4, including a bobbin connecting shaft 11, a first drive device 12 for driving the bobbin connecting shaft 11 to move horizontally reciprocally, and a second drive device 13 for driving the bobbin connecting shaft 11 to rotate. The bobbin connecting shaft 11 is rotatably connected to a slide 14, which is slidably connected to a machine base 15. The first drive device 11 drives the slide 14 to move axially reciprocally on the machine base 15. The second drive device 12 is mounted on the slide 14 and is a motor-driven transmission belt. A fixed shaft 4 is provided on the slide 14, and the bobbin connecting shaft 11 is coaxially arranged with the fixed shaft 4. The bobbin connecting shaft 11, attached to the fixed shaft 4, rotates via a transmission belt. Several connecting holes 16 are provided on the outer flange 7A of the bobbin 5. One or more movable pins 18 are provided at the end of the bobbin connecting shaft 11 to engage with the connecting holes 16. This is disclosed in CN202222573418.4 and will not be repeated here. This application also works in conjunction with the shuttle feeding mechanism 9, cycloidal mechanism, and thread cutting mechanism of CN202222573418.4. The difference is that in this application, a magnet 19 is provided at the end of the bobbin connecting shaft 11. Figures 3 to 5As shown, during operation, the first drive device 12 first drives the bobbin connecting shaft 11 to move towards the shuttle feeding mechanism 9, so that the bobbin connecting shaft 11 presses the bobbin 5 of the integral shuttle at the end of the shuttle feeding mechanism 9 into the shuttle case 1. The second drive device 12 drives the bobbin connecting shaft 11 to rotate a certain angle to ensure that the movable pin 18 is pushed out and inserted into the connecting hole 16. This principle is explained in CN202222573418.4. At this time, the magnet 19 contacts the bobbin 5 and magnetically attracts and fixes it. The movable pin 18 only slightly enters the connecting hole 16 to ensure that the bobbin connecting shaft 11 can drive the bobbin 5 to rotate together. The movable pin 18 will not interfere with the winding (because during winding, the wire is wound between the two flanges 7 and 7A). On the cylindrical part 6, if the movable pin 18 passes through the connecting hole 16, the thread may be wound on the movable pin 18. The magnet 19 can be an electromagnet or a permanent magnet, which can achieve contact and magnetic fixation of the bobbin 5. For ease of installation and simplification of structure, permanent magnets are preferred. Then, the first drive device 12 drives the bobbin connecting shaft 11 and the magnetically held bobbin 5 to move slightly backward (the inner flange 7 of the bobbin 5 is between the base plate 2 and the blocking part 10), so that the inner flange 7 of the bobbin 5 does not contact the base plate 2 of the bobbin case 1. The second drive device 12 then drives the bobbin connecting shaft 11 and the bobbin 5 to rotate together to wind the thread. There will be no great friction between the bobbin 5 and the bobbin case 2, reducing wear and extending the service life of the bobbin.

[0014] As a preferred embodiment, the end of the bobbin connecting shaft 11 is provided with a fixing pin 20 that is inserted into the middle hole of the bobbin 5. When the bobbin connecting shaft 11 is connected to the bobbin 5, the fixing pin 20 is inserted into the bobbin 5, and the movable pin 20 is inserted into the corresponding connecting hole 16, which facilitates precise connection with the bobbin 5 and better drives it to rotate together. The magnet 19 is sleeved on the fixing pin 20, which can make uniform contact with and magnetically fix the bobbin 5, thereby improving stability.

[0015] After the winding is completed, when the first drive device drives the bobbin connecting shaft 11 to move backward and separate from the integrated shuttle, it will be magnetically attracted to the bobbin 5, thus causing the bobbin 5 to move backward as well. However, the blocking part 10 of the shuttle case 1 blocks the bobbin 5. Therefore, the integrated shuttle may be carried away from the shuttle feeding mechanism 9 along with the bobbin connecting shaft 11, affecting subsequent work. In order to smoothly separate from the bobbin 5 when the bobbin connecting shaft 11 moves backward, this application has a retraction pin 21 slidably connected inside the bobbin connecting shaft 11. The retraction pin 21 moves along the bobbin connecting shaft. The axial sliding of the bobbin 11 engages with the bobbin 5. Specifically, after winding, when the first drive device drives the bobbin connecting shaft 11 to move backward, the retracting pin 21 moves forward to abut against the bobbin 5, allowing it to smoothly separate from the magnet 19. Subsequently, the retracting pin 21 moves backward to reset, achieving the separation of the bobbin connecting shaft 11 and the bobbin 5. To achieve this process, a third drive device is provided in the slide 14. The third drive device includes a cylinder 22 and a retaining ring 23 connected through the telescopic rod of the cylinder 22. The retracting pin 21 passes through... The front end of the bobbin connecting shaft 11 is connected to the retaining ring 23. The retaining ring 23 is annular and sleeved on the fixed shaft 4, so that the retraction pin 21 can be connected to the retaining ring 23 at any position after rotating with the connecting shaft 11. The front end of the bobbin connecting shaft 11 and the retraction pin 21 are provided with a return spring 24. The return spring 24 has the elastic force to push the retraction pin 21 backward and keep it in the position separated from the bobbin 5. After the winding is completed, when the first drive device drives the bobbin connecting shaft 11 to move backward, the cylinder 22 pushes the retaining ring 23. When the retaining ring 23 moves forward, it drives the retraction pin 21 to move forward and abut against the bobbin 5. At this time, the return spring 24 is further compressed. After the bobbin connecting shaft 11 moves backward and separates from the bobbin 5, the cylinder 22 contracts, and the return spring 24 is released, driving the retraction pin 21 to move backward and reset, ready for the next round of work. In order for the retraction pin 21 to abut against the bobbin 5 smoothly, the end diameter of the retraction pin 21 is larger than the diameter of the connecting hole 16, so that it will not enter the connecting hole 16 when abutting, and can smoothly complete the separation.

Claims

1. A connection structure between an integrated shuttle and a winding machine, wherein the integrated shuttle includes a shuttle housing and a bobbin connected to the central shaft of the shuttle housing, wherein the outer side of the bobbin is provided with a plurality of connecting holes, and the winding machine includes a bobbin connecting shaft, a first driving device for driving the bobbin connecting shaft to move horizontally reciprocally, and a second driving device for driving the bobbin connecting shaft to rotate, wherein the end of the bobbin connecting shaft is provided with a plurality of movable pins that are inserted into the connecting holes, characterized in that: The end of the bobbin connecting shaft is fixed with a magnet that magnetically engages with the bobbin.

2. The connection structure between the integrated shuttle and the winding machine according to claim 1, characterized in that: The magnet is a permanent magnet.

3. The connection structure between the integrated shuttle and the winding machine according to claim 1 or 2, characterized in that: The end of the bobbin connecting shaft is provided with a fixing pin that is inserted into the bobbin's central hole.

4. The connection structure between the integrated shuttle and the winding machine according to claim 3, characterized in that: The magnet is fitted onto the fixing pin.

5. The connection structure between the integrated shuttle and the winding machine according to claim 1, characterized in that: A retraction pin is slidably connected inside the bobbin connecting shaft, and the retraction pin slides along the axial direction of the bobbin connecting shaft to engage with the bobbin.

6. The connection structure between the integrated shuttle and the winding machine according to claim 5, characterized in that: It includes a third drive device and a reset mechanism with an elastic element. The reset mechanism is connected to a retraction pin. The retraction pin is pushed and slid to a position abutting the bobbin by the third drive device. During this process, the elastic element of the reset mechanism further deforms to generate elastic force, which can push the retraction pin to reset and remain in a position not abutting the bobbin.

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