Spinning machine matching bobbin self-replacement mechanism

Abstract

The application relates to the technical field of spinning machine bobbin replacement, and discloses a self-replacement mechanism for a spinning machine bobbin, which comprises a spinning machine body for winding yarn and a rotating unit installed on the spinning machine body, a main shaft is rotationally connected in the spinning machine body, annular supports are symmetrically installed on the main shaft, telescopic rod frames are installed on the annular supports, movable sleeves are slidably connected in annular frames, tapered rubber sleeves for fixing bobbins are arranged on the movable sleeves, and iron shafts controlled by magnetic force are arranged in the sleeves; the self-replacement mechanism for the spinning machine bobbin is automatically used for conveying a full bobbin to a conveying mechanism through the rotation of the main shaft and the magnetic attraction, and simultaneously used for releasing the fixation, and the automatic feeding, positioning and clamping of an empty bobbin are completed by using an inclined conveying track and an annular magnet; the whole process does not need manual intervention, the labor intensity is greatly reduced, the dependence on manual work is reduced, and the replacement efficiency of the bobbins and the equipment operation efficiency are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of yarn bobbin replacement technology for spinning machines, specifically to a self-replacing mechanism for yarn bobbins used in spinning machines. Background Technology

[0002] As the core equipment of the textile industry, the spinning machine's development has spanned the entire industrial chain upgrade process from handicraft workshops to modern intelligent factories. The air-jet spinning machine is a significant innovative piece of equipment in modern spinning technology. It uses high-speed rotating airflow to twist fiber bundles, directly forming yarn, which is then wound onto specially designed bobbins, ultimately forming the familiar cone yarn. This process, with its high efficiency, high speed, and excellent yarn quality, occupies a pivotal position in the global textile industry. Throughout the spinning process, the bobbin plays a crucial role in carrying and storing the yarn, serving as the physical carrier connecting the spinning process with subsequent weaving and dyeing processes. The bobbin is typically arranged horizontally on the machine, with its ends supported and positioned by the side walls of the frame. As spinning continues, the yarn is continuously and evenly wound onto the surface of the bobbin, and the amount of yarn wound on the bobbin gradually increases. Once the bobbin is full, it needs to be replaced, completing the exchange between a full and empty bobbin.

[0003] In practical applications, when the yarn bobbin is fully wound, the operator needs to stop the machine, release the clamps or fixations on the full bobbin from the frame, remove it from the installation station, and place it in the collection area. Then, an empty yarn bobbin is installed on the frame, and the spinning machine is restarted. During this process, yarn rewinding is mostly accomplished using an automatic winding unit. For example, the automatic winding unit moves to the exit of the spinning machine, accurately clamps or attracts the hanging yarn, and then moves along a planned trajectory to tension the yarn and accurately guide it to the surface of the starting-rotating empty yarn bobbin. The bobbin rotates and winds in the yarn, completing the initial winding.

[0004] Although the winding of yarn during the yarn bobbin replacement process can be achieved by an automatic winding unit, the replacement of the yarn bobbin usually requires manual operation. This operation process is not only time-consuming and significantly reduces the effective operating rate of the equipment, but also requires well-trained workers to continuously monitor and operate the equipment in a high-intensity and repetitive manner, which reduces work efficiency and increases the labor intensity of workers. Therefore, we propose a yarn bobbin self-changing mechanism for spinning machines. Summary of the Invention

[0005] The purpose of this invention is to provide a self-changing bobbin mechanism for a spinning machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a spinning machine-compatible yarn bobbin self-changing mechanism, comprising a spinning machine body for winding yarn onto the yarn bobbin, a rotating unit mounted on the spinning machine body and connected to a power source, a main shaft rotatably connected to the inner side wall of the spinning machine body, annular supports symmetrically mounted on the main shaft, at least four telescopic rods fixedly mounted on each annular support, and an annular frame fixedly mounted at the end of each telescopic rod, an annular sleeve rotatably mounted inside the annular frame, a movable sleeve slidably connected to the annular sleeve, a conical rubber sleeve fixedly mounted on the movable sleeve, the conical rubber sleeve entering to the end of the yarn bobbin and fixing the yarn bobbin by friction, an iron shaft slidably connected to the inner wall of the movable sleeve, and an iron block fixedly mounted on each annular frame; Symmetrically arranged below the main shaft are conveying mechanisms installed inside the spinning machine body. Each conveying mechanism is fixedly equipped with multiple brackets for restricting the ends of the yarn bobbin. An L-shaped plate frame is installed inside the spinning machine body on one side of the conveying mechanism. A magnet is fixedly installed on the L-shaped plate frame. The magnet is located on the movement trajectory of the iron block and generates a magnetic attraction force on the iron block. A magnet is fixedly installed on the side wall of the L-shaped plate frame. The magnet is located on the movement trajectory of the iron shaft and generates a magnetic attraction force on the iron shaft. A ring magnet is also fixedly installed on the side wall of the spinning machine body. The ring magnet is located on the movement trajectory of the iron shaft and generates a repulsive force on the iron shaft.

[0007] Preferably, a connecting shaft is rotatably connected to the inner wall of the movable sleeve, one end of the iron shaft is located inside the movable sleeve, a spring is connected between the iron shaft and the inner wall of the movable sleeve, and a spring is connected between the movable sleeve and the annular sleeve.

[0008] Preferably, multiple arc-shaped protrusions are fixedly installed on the connecting shaft, and multiple sliding shafts are slidably connected to the inner wall of one end of the movable sleeve. The sliding shafts correspond one-to-one with the arc-shaped protrusions, and a rubber pad is fixedly installed at one end of the sliding shaft.

[0009] Preferably, a circular sleeve is rotatably connected to the iron shaft, and a ball is embedded in the circular sleeve. The circular sleeve is slidably connected to the connecting shaft. The inner wall of the movable sleeve is provided with a sliding groove and an arc-shaped groove communicating with both ends of the sliding groove. The ball slides within the sliding groove and the arc-shaped groove.

[0010] Preferably, a limiting shaft is slidably connected to the inner wall of one end of the sliding shaft. The end of the limiting shaft is located on the movement trajectory of the arc-shaped protrusion. A return spring is connected between the sliding shaft and the movable sleeve. When the limiting shaft contacts the arc-shaped protrusion, the return spring is in a stretched state. A spring is connected between the limiting shaft and the inner wall of the sliding shaft. When the movable sleeve enters the yarn tube, the limiting shaft, under the action of the arc-shaped protrusion, causes the sliding shaft to drive the rubber pad to contact the inner wall of the yarn tube.

[0011] Preferably, an embedded disc is also fixedly installed on the movable sleeve, and multiple telescopic shafts are fixedly installed on the embedded disc. The telescopic shafts are arranged in annular intervals on the embedded disc. An annular panel is rotatably connected to the annular sleeve, and a snap-fit ​​frame corresponding to each telescopic shaft is fixedly installed on the inner wall of the annular panel.

[0012] Preferably, the snap-fit ​​frame is inclined on the side near the telescopic shaft. When the telescopic shaft enters the annular panel, the telescopic shaft moves along the inclined side of the snap-fit ​​frame and eventually enters the snap-fit ​​frame. A torsion spring connects the annular panel and the annular sleeve.

[0013] Preferably, a force-bearing shaft is fixedly installed on the annular panel, and an action rod is fixedly installed on the L-shaped plate frame. The action rod is located on the movement trajectory of the force-bearing shaft, the top of the action rod is inclined, and a button is fixedly installed on the top of the action rod. The button is connected to the conveying mechanism by an electrical signal.

[0014] Preferably, the spinning machine body is also symmetrically equipped with inclined conveying tracks, and the yarn bobbins without yarn are placed in the inclined conveying tracks, with the ends of the yarn bobbins sliding within the inclined conveying tracks.

[0015] Preferably, when the iron shaft is not subjected to the force of the magnet or the ring magnet, the balls on the iron shaft are located in the sliding groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a main shaft to drive a ring bracket to rotate, and with the attraction between magnet one and the iron block, the full yarn bobbin is automatically and accurately transported to the conveying mechanism. The attraction of magnet two to the iron shaft releases the restriction on the inner wall of the yarn bobbin. At the same time, through the repulsive force of the inclined conveying track and the ring magnet, the automatic feeding and positioning clamping of the yarn bobbin is completed. The entire process does not require manual intervention, greatly reducing labor intensity and dependence on manual labor. 2. This invention achieves double fixation through the radial friction of the conical rubber sleeve and the axial pressing of the rubber pad at the end of the sliding shaft. The sliding shaft automatically extends and is fixed in the clamping state through the clever cooperation between the arc-shaped protrusion and the limiting shaft. When the yarn bobbin needs to be released, the iron shaft is subjected to magnetic force to generate axial movement, which drives the circular sleeve to rotate, causing the arc-shaped protrusion to disengage from the limiting shaft. Under the action of the return spring, the sliding shaft automatically retracts, releasing the axial fixation, which can effectively improve the stability of the yarn bobbin clamping. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the spinning machine body in this invention. Figure 1 ; Figure 3 This is a schematic diagram of the internal structure of the spinning machine body in this invention. Figure 2 ; Figure 4 This is a schematic diagram of the main shaft and the annular support in this invention; Figure 5 This is a schematic diagram of the structure of the rubber pad and the conical rubber sleeve inside the yarn tube in this invention; Figure 6 This is a schematic diagram showing the structural separation of the annular frame and the annular sleeve in this invention; Figure 7 This is a schematic diagram of the movable sleeve in this invention; Figure 8 This is a schematic diagram of the structure of the arc-shaped groove and the sliding groove in this invention; Figure 9 This is a schematic diagram of the movable sleeve and iron shaft in this invention; Figure 10 This is a schematic diagram of the sliding shaft and the limiting shaft in this invention; Figure 11 This is a schematic diagram of the snap-fit ​​frame and telescopic shaft in this invention; Figure 12 This is a schematic diagram of the rotating unit in this invention; Figure 13 This is a schematic diagram of the structure of the yarn bobbin and the support in this invention; Figure 14 This is a schematic diagram of the structure of the ring magnet and the iron shaft in this invention; Figure 15 This is a schematic diagram of the L-shaped plate frame in this invention.

[0018] In the diagram: 1. Spinning machine body; 2. Rotating unit; 21. Rotating shaft; 22. Extension shaft; 23. Spring component; 24. Annular electromagnetic assembly; 3. Main shaft; 31. Annular bracket; 32. Telescopic rod frame; 33. Annular frame; 34. Annular sleeve; 35. Iron block; 36. Spring II; 37. Annular panel; 371. Snap-fit ​​frame; 372. Force-bearing shaft; 38. Torsion spring; 4. Movable sleeve; 41. Conical rubber sleeve; 42. Iron shaft; 421. Circular sleeve; 422. Roller 43. Bead; 43. Connecting shaft; 431. Arc-shaped protrusion; 44. Spring 1; 45. Sliding shaft; 451. Limiting shaft; 452. Return spring; 453. Spring 3; 46. Rubber pad; 47. Sliding groove; 48. Arc-shaped groove; 49. Embedded disc; 491. Telescopic shaft; 5. Conveying mechanism; 51. Bracket; 52. Magnet 1; 53. Magnet 2; 54. Actuating rod frame; 55. Button; 6. Ring magnet; 7. Inclined conveying track; 8. Yarn bobbin; 9. L-shaped plate frame. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-15 This invention provides a technical solution: a yarn bobbin self-changing mechanism for a spinning machine, comprising a spinning machine body 1 for winding yarn onto a yarn bobbin 8, and a rotating unit 2 mounted on the spinning machine body 1 and connected to a power source. A main shaft 3 is rotatably connected to the inner side wall of the spinning machine body 1. The rotating unit 2 drives the yarn bobbin 8 to rotate, achieving the purpose of winding the yarn onto the bobbin. The main shaft 3 is also connected to another independent power source. The power source connected to the rotating unit 2 is often a servo motor (not shown in the figure), while the power source connected to the main shaft 3 can be a high-torque motor (not shown in the figure). Both servo motors and motors are existing technology components. Circular brackets 31 are symmetrically mounted on the main shaft 3, and at least four telescopic rods 32 are fixedly mounted on each circular bracket 31. Annular frames 33 are fixedly installed at the ends of 2. The telescopic rod 32 includes a fixed end fixedly connected to the annular bracket 31 and a movable end fixedly connected to the annular frame 33. A constant force spring is connected between the movable end and the fixed end. The telescopic rod 32 is a conventional design for those skilled in the art, and therefore, the present invention does not describe it in detail. Annular sleeve 34 is rotatably connected inside the annular frame 33. A movable sleeve 4 is slidably connected on the annular sleeve 34. A conical rubber sleeve 41 is fixedly installed on the movable sleeve 4. The conical rubber sleeve 41 enters the end of the yarn tube 8 and fixes the yarn tube 8 by friction. An iron shaft 42 is slidably connected to the inner wall of the movable sleeve 4. An iron block 35 is fixedly installed on each annular frame 33. A spring 36 is connected between the movable sleeve 4 and the annular sleeve 34. Combined with appendix Figure 5 -Appendix Figure 9 As shown, a connecting shaft 43 is rotatably connected to the inner wall of the movable sleeve 4. The outer wall of the connecting shaft 43 does not contact the inner wall of the iron shaft 42. Multiple arc-shaped protrusions 431 are fixedly installed on the connecting shaft 43. A sliding shaft 45 is slidably connected to the inner wall of one end of the movable sleeve 4. The sliding shaft 45 corresponds one-to-one with the arc-shaped protrusions 431. A rubber pad 46 is fixedly installed at one end of the sliding shaft 45. Figure 10As shown, a limiting shaft 451 is slidably connected to the inner wall of one end of the sliding shaft 45. The end of the limiting shaft 451 is located on the movement trajectory of the arc-shaped protrusion 431. A return spring 452 is connected between the sliding shaft 45 and the movable sleeve 4. When the limiting shaft 451 contacts the arc-shaped protrusion 431, the return spring 452 is in a stretched state. A spring 453 is connected between the limiting shaft 451 and the inner wall of the sliding shaft 45. When the movable sleeve 4 enters the end of the yarn bobbin 8, the limiting shaft 451, under the action of the arc-shaped protrusion 431, causes the sliding shaft 45 to... The rubber pad 46 is brought into contact with the inner wall of the yarn tube 8; one end of the iron shaft 42 is located inside the movable sleeve 4, and a spring 44 is connected between the iron shaft 42 and the inner wall of the movable sleeve 4. A circular sleeve 421 is rotatably connected to the iron shaft 42, and a ball bearing 422 is embedded in the circular sleeve 421. The circular sleeve 421 is slidably connected to the connecting shaft 43. The inner wall of the movable sleeve 4 is provided with a sliding groove 47 and an arc-shaped groove 48 communicating with both ends of the sliding groove 47. The ball bearing 422 slides within the sliding groove 47 and the arc-shaped groove 48. Figure 5 As shown, when fixing the yarn tube 8, the conical rubber sleeve 41 enters to the end of the yarn tube 8 and fixes the yarn tube 8 by friction. The rubber pad 46 at the end of the sliding shaft 45 is in close contact with the inner wall of the yarn tube 8. Under the combined action of the rubber pad 46 and the conical rubber sleeve 41, the yarn tube 8 is tightly fixed.

[0021] Combined with appendix Figure 6 and attached Figure 11 An embedded disc 49 is fixedly installed on the movable sleeve 4. Multiple telescopic shafts 491 are fixedly installed on the embedded disc 49. The telescopic shafts 491 are arranged in annular intervals on the embedded disc 49. An annular panel 37 is rotatably connected to the annular sleeve 34. A snap-fit ​​frame 371 corresponding to each telescopic shaft 491 is fixedly installed on the inner wall of the annular panel 37. The snap-fit ​​frame 371 is inclined on the side near the telescopic shaft 491. When the telescopic shaft 491 enters the annular panel 37, the telescopic shaft 491 moves along the inclined side of the snap-fit ​​frame 371 and finally enters the snap-fit ​​frame 371. A torsion spring 38 is connected between the annular panel 37 and the annular sleeve 34. A force-bearing shaft 372 is fixedly installed on the annular panel 37.

[0022] Combined with appendix Figure 2 Appendix Figure 3 Appendix Figure 13 and attached Figure 14As shown, symmetrical conveying mechanisms 5 are installed inside the spinning machine body 1 below the main shaft 3. Each conveying mechanism 5 has multiple brackets 51 fixedly installed to restrict the ends of the yarn bobbin 8. An L-shaped frame 9 installed inside the spinning machine body 1 is provided on one side of the conveying mechanism 5. A magnet 52 is fixedly installed on the L-shaped frame 9, located on the movement trajectory of the iron block 35 and exerting a magnetic attraction force on the iron block 35. A magnet 53 is fixedly installed on the side wall of the L-shaped frame 9, located on the movement trajectory of the iron shaft 42 and exerting an attraction force on the iron shaft 42. The iron shaft 42 is magnetic, but its magnetic properties are opposite to those of the magnet 53. A frame is provided on the L-shaped frame 9 to isolate the mutual influence between the magnet 52 and the magnet 53. When the iron shaft 42 is not affected by the magnet 53... When the force of the ring magnet 6 or the 3 is applied, the ball bearing 422 on the iron shaft 42 is located in the sliding groove 47; the spinning machine body 1 is also symmetrically equipped with an inclined conveying track 7, the yarn bobbin 8 without yarn is placed in the inclined conveying track 7, and the end of the yarn bobbin 8 is limited and slid within the inclined conveying track 7; the side wall of the spinning machine body 1 is also fixedly equipped with a ring magnet 6, the ring magnet 6 is located on the movement trajectory of the iron shaft 42, and applies a repulsive force to the iron shaft 42, the magnetism of the iron shaft 42 is the same as the magnetism of the ring magnet 6; the L-shaped plate frame 9 is fixedly equipped with an action rod frame 54, the action rod frame 54 is located on the movement trajectory of the force-bearing shaft 372, the top of the action rod frame 54 is inclined, and a button 55 is fixedly installed on the top of the action rod frame 54, the button 55 is connected to the conveying mechanism 5 by an electrical signal.

[0023] Furthermore, in conjunction with the appendix Figure 12 As shown, the rotating unit 2 includes a rotating shaft 21 connected to a power source. An extension shaft 22 is slidably connected to the inner wall of the rotating shaft 21. The end of the extension shaft 22 is located outside the rotating shaft 21, and a spring 23 is connected between the extension shaft 22 and the inner wall of the rotating shaft 21. An iron plate is embedded in one end of the extension shaft 22 near the end of the rotating shaft 21. An annular electromagnetic component 24 is installed at the end of the rotating shaft 21. When the annular electromagnetic component 24 is energized, it generates a repulsive force on the iron plate at the end of the extension shaft 22. The outer wall of the movable sleeve 4 is provided with a keyway that fits into the inner wall of the extension shaft 22. When the annular electromagnetic component 24 is not energized, the extension shaft 22 is not on the movement trajectory of the iron shaft 42 and the movable sleeve 4.

[0024] In the specific implementation process, in conjunction with the appendix Figure 1 Appendix Figure 2 and attached Figure 3As shown, the rotating unit 2, driven by a power source, drives the movable sleeve 4 located on one side to rotate. During the rotation of the movable sleeve 4, the yarn bobbin 8 rotates through the rubber pad 46 and the conical rubber sleeve 41, thereby completing the yarn winding work. When the yarn bobbin 8 is fully wound and needs to be replaced, the main shaft 3 rotates. Before the main shaft 3 rotates, the annular electromagnetic component 24 on the rotating unit 2 is de-energized, causing the extension shaft 22 to enter the rotating shaft 21, thus separating the extension shaft 22 from the movable sleeve 4, and the extension shaft 22 is no longer involved in the movement of the iron shaft 42 and the movable sleeve 4. On the trajectory, the main shaft 3 then rotates, and the main shaft 3 drives the annular frame 33 to move through the annular bracket 31 and multiple sets of telescopic rods 32. The mechanical parts inside the annular frame 33 move synchronously in a circular motion, causing the full yarn bobbin 8 to move out of the side of the extension shaft 22, and the empty yarn bobbin 8 to rotate to the corresponding position on the side of the extension shaft 22. After the main shaft 3 stops rotating, the annular electromagnetic component 24 is energized to apply a repulsive force to the iron plate at the end of the extension shaft 22, so that the extension shaft 22 contacts the movable sleeve 4. The rotating shaft 21 rotates, driving the extension shaft 22 to drive the movable sleeve 4 to rotate. For ease of description, the annular support 31 of this invention is fixedly equipped with four telescopic rods 32. When the main shaft 3 rotates 90°, the fully loaded yarn bobbin 8 moves above the conveying mechanism 5 after rotating 90° with the main shaft 3. At the same time, the annular frame 33 corresponding to the fully loaded yarn bobbin 8 moves directly above the L-shaped plate frame 9. At this time, the magnet 52 at the bottom of the L-shaped plate frame 9 generates a magnetic attraction force on the iron block 35 on the annular frame 33. Driven by the telescopic rods 32, the annular frame 33 moves downward. All components on the annular frame 33 descend synchronously. During the descent, the force-bearing shaft 372 contacts the button 55 on the action rod 54. The button 55 controls the operation of the conveying mechanism 5, causing the empty support 51 on the conveying mechanism 5 to move directly above the fully loaded yarn bobbin 8. Below; during the descent of the annular frame 33, the force-bearing shaft 372 on the annular panel 37 will be located on the movement trajectory of the action rod 54. The force-bearing shaft 372 will be angled by the action rod 54. During this process, the force-bearing shaft 372 drives the annular panel 37 to rotate. The rotation of the annular panel 37 causes the locking frame 371 to rotate accordingly, releasing the limitation on the telescopic shaft 491. The telescopic shaft 491 can move outward from the locking frame 371. The embedded disc 49 is fixedly installed on the movable sleeve 4. At this time, the conical rubber sleeve 41 and rubber pad 46 corresponding to the end of the movable sleeve 4 are located inside the yarn tube 8. Since the locking frame 371 moves away and no longer limits the telescopic shaft 491, the movable sleeve 4 and the annular... A compressed spring 36 is provided between the sleeves 34, giving the movable sleeve 4 a tendency to move outward. However, the friction between the conical rubber sleeve 41 and the rubber pad 46 and the inner wall of the yarn tube 8 restricts its outward movement temporarily. The annular frame 33 continues to descend until the iron shaft 42 approaches the side of the magnet 53. The magnet 53 exerts a magnetic attraction force on the iron shaft 42, driving the iron shaft 42 to move within the movable sleeve 4. During the movement of the iron shaft 42, the ball bearings 422 on the circular sleeve 421 move from the sliding groove 47 to one of the arc-shaped grooves 48, and finally to the end of the arc-shaped groove 48. During this process, the ball bearings 422 slide and drive the circular sleeve 421 within the iron shaft 42. During the upward rotation, the spring 44 between the end of the iron shaft 42 and the inner wall of the movable sleeve 4 is stretched. It should be noted that one end of the connecting shaft 43 extends into the iron shaft 42 but does not contact the inner wall of the iron shaft 42. It is only slidably connected to the inner wall of the circular sleeve 421. When the circular sleeve 421 rotates, it drives the connecting shaft 43 to rotate synchronously. The arc-shaped protrusion 431 on the connecting shaft 43 leaves the limiting shaft 451. Under the reset action of the compressed spring 453 and the reset spring 452, the limiting shaft 451 and the sliding shaft 45 retract toward the surface of the movable sleeve 4. That is, the end of the limiting shaft 451 contacts the surface of the connecting shaft 43, and the rubber pad 46 on the sliding shaft 45 separates from the inner wall of the yarn tube 8.Subsequently, when the ball bearing 422 moves to the inner wall of the end of the arc-shaped groove 48, the second magnet 53 continues to exert a magnetic attraction force on the iron shaft 42, thereby driving the circular sleeve 421 to continue moving. The ball bearing 422 then applies a force to the inner wall of the arc-shaped groove 48, causing the movable sleeve 4 to move the conical rubber sleeve 41 and the sliding shaft 45 away from the yarn tube 8, thus releasing the constraint on the yarn tube 8. It should be noted that when the iron shaft 42 moves to the side of the second magnet 53, both ends of the yarn tube 8 will move to the support 51, and the support 51 will contact both ends of the yarn tube 8. When the conical rubber sleeve 41 and the rubber pad 46 are no longer inside the yarn tube 8, the constraint on the yarn tube 8 is released.

[0025] As the main shaft 3 rotates, the full yarn bobbin 8 is unloaded onto the support 51 of the conveying mechanism 5, and then an empty yarn bobbin 8 is replenished. During the rotation of the main shaft 3, the iron shaft 42, which was originally located on one side of the second magnet 53, moves away from the second magnet 53, and the annular frame 33 moves away from the first magnet 52. The telescopic rod 32 drives the annular frame 33 to reset, and finally rotates to the end position of the inclined conveying track 7. During this process, when the iron shaft 42 is subjected to the magnetic attraction force of the second magnet 53, the iron shaft 42 and the spring 44 on the inner wall of the movable sleeve 4 are in a stretched state. When the iron shaft 42 moves away from the second magnet 53, the iron shaft 42 will reset, and the ball 422 on the circular sleeve 421 will move to the initial area in the middle of the sliding groove 47. At this time, the arc-shaped protrusion 431 on the connecting shaft 43 rotates to the limiting shaft 451. The limiting shaft 451 is subjected to force, causing the sliding shaft 45 to drive the rubber pad 46 to move synchronously, and the reset spring 452 is in a stretched state.

[0026] When the annular frame 33 moves to the end of the inclined conveyor track 7, the annular magnet 6, fixedly installed on the side wall of the spinning machine body 1, is located on one side of the iron shaft 42 and applies a repulsive force to the iron shaft 42, causing the iron shaft 42 to move inside the movable sleeve 4. The iron shaft 42 drives the circular sleeve 421 and the ball bearing 422 to move synchronously. The ball bearing 422 enters another arc-shaped groove 48 along the trajectory of the sliding groove 47, and finally moves to the end of the arc-shaped groove 48. During this process, the circular sleeve 421 rotates on the iron shaft 42 along with the ball bearing 422. During the movement of the iron shaft 42, its Spring 44, which presses against the inner wall of the movable sleeve 4 at the end, is compressed. The arc-shaped protrusion 431 on the connecting shaft 43 moves away from the limiting shaft 451. Then, under the restoring action of the compressed spring 453 and the return spring 452, the limiting shaft 451 and the sliding shaft 45 retract towards the surface of the movable sleeve 4. The end of the limiting shaft 451 contacts the surface of the connecting shaft 43. During the movement of the rubber pad 46 on the sliding shaft 45 into the yarn tube 8, the rubber pad 46 does not contact the inner wall of the yarn tube 8. Subsequently, when the ball bearing 422 moves to the inner wall of the arc-shaped groove 48, the annular magnet... 6. Continue to apply a repulsive force to the iron shaft 42. The iron shaft 42, through the circular sleeve 421, causes the ball bearings 422 to exert a force on the inner wall of the arc-shaped groove 48, thereby causing the movable sleeve 4 to drive the conical rubber sleeve 41 into the empty end of the yarn bobbin 8. When entering the yarn bobbin 8, the two conical rubber sleeves 41 correct the position of the yarn bobbin 8, ensuring that the axis of the yarn bobbin 8 coincides with the axis of the conical rubber sleeve 41. If they do not coincide initially, the conical rubber sleeve 41 will contact the inner wall of the yarn bobbin 8 before entering the end of the yarn bobbin 8 and correct the yarn bobbin 8; when the movable sleeve 4 enters the end of the yarn bobbin 8... The conical rubber sleeve 41 fixes the yarn tube 8 by friction. When the main shaft 3 rotates, the iron shaft 42 leaves the annular magnet 6. Under the action of the spring 44, the iron shaft 42 returns to its original position. The ball bearing 422 on the circular sleeve 421 moves to the initial area in the middle of the sliding groove 47. The arc-shaped protrusion 431 on the connecting shaft 43 rotates to the limiting shaft 451. The limiting shaft 451 is subjected to force, causing the sliding shaft 45 to drive the rubber pad 46 to move synchronously. The rubber pad 46 contacts the inner wall of the yarn tube 8 and limits and fixes the yarn tube 8. Through the structural design of the present invention, the automatic replacement operation of the full yarn tube 8 is completed efficiently.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-changing yarn bobbin mechanism for a spinning machine, characterized in that, The spinning machine body (1) is used to wind yarn onto a yarn bobbin (8). A rotating unit (2) is mounted on the spinning machine body (1) and connected to a power source. A main shaft (3) is rotatably connected to the inner side wall of the spinning machine body (1). A ring bracket (31) is symmetrically mounted on the main shaft (3). At least four telescopic rods (32) are fixedly mounted on each ring bracket (31). A ring frame (33) is fixedly mounted at the end of each telescopic rod (32). A ring sleeve (34) is rotatably mounted inside the ring frame (33). A movable sleeve (4) is slidably connected to the ring sleeve (34). A conical rubber sleeve (41) is fixedly mounted on the movable sleeve (4). The conical rubber sleeve (41) enters to the end of the yarn bobbin (8) and fixes the yarn bobbin (8) by friction. An iron shaft (42) is slidably connected to the inner wall of the movable sleeve (4). An iron block (35) is fixedly mounted on each ring frame (33). Below the main shaft (3), there are symmetrically arranged conveying mechanisms (5) installed inside the spinning machine body (1). Each conveying mechanism (5) is fixedly installed with multiple brackets (51) for limiting the ends of the yarn bobbin (8). On one side of the conveying mechanism (5), there is an L-shaped plate frame (9) installed inside the spinning machine body (1). A magnet (52) is fixedly installed on the L-shaped plate frame (9). The magnet (52) is located on the movement trajectory of the iron block (35) and generates a magnetic attraction force on the iron block (35). A magnet (53) is fixedly installed on the side wall of the L-shaped plate frame (9). The magnet (53) is located on the movement trajectory of the iron shaft (42) and generates a magnetic attraction force on the iron shaft (42). A ring magnet (6) is also fixedly installed on the side wall of the spinning machine body (1). The ring magnet (6) is located on the movement trajectory of the iron shaft (42) and generates a repulsive force on the iron shaft (42). The inner wall of the movable sleeve (4) is rotatably connected to a connecting shaft (43). One end of the iron shaft (42) is located inside the movable sleeve (4). A spring (44) is connected between the iron shaft (42) and the inner wall of the movable sleeve (4). A spring (36) is connected between the movable sleeve (4) and the annular sleeve (34). Multiple arc-shaped protrusions (431) are fixedly installed on the connecting shaft (43), and multiple sliding shafts (45) are slidably connected to the inner wall of one end of the movable sleeve (4). The sliding shafts (45) correspond one-to-one with the arc-shaped protrusions (431), and a rubber pad (46) is fixedly installed at one end of the sliding shaft (45). A circular sleeve (421) is rotatably connected to an iron shaft (42). A ball bearing (422) is embedded in the circular sleeve (421). The circular sleeve (421) is slidably connected to the connecting shaft (43). The inner wall of the movable sleeve (4) is provided with a sliding groove (47) and an arc-shaped groove (48) connected to both ends of the sliding groove (47). The ball bearing (422) slides within the sliding groove (47) and the arc-shaped groove (48).

2. The self-changing yarn bobbin mechanism for a spinning machine according to claim 1, characterized in that: A limiting shaft (451) is slidably connected to the inner wall of one end of the sliding shaft (45). The end of the limiting shaft (451) is located on the movement trajectory of the arc protrusion (431). A return spring (452) is connected between the sliding shaft (45) and the movable sleeve (4). When the limiting shaft (451) contacts the arc protrusion (431), the return spring (452) is in a stretched state. A spring three (453) is connected between the limiting shaft (451) and the inner wall of the sliding shaft (45). When the movable sleeve (4) enters the yarn tube (8), the limiting shaft (451) is under the action of the arc protrusion (431), and the sliding shaft (45) drives the rubber pad (46) to contact the inner wall of the yarn tube (8).

3. The self-changing yarn bobbin mechanism for a spinning machine according to claim 2, characterized in that: An embedded disc (49) is also fixedly installed on the movable sleeve (4). Multiple telescopic shafts (491) are fixedly installed on the embedded disc (49). The telescopic shafts (491) are arranged in annular angles on the embedded disc (49). An annular panel (37) is rotatably connected to the annular sleeve (34). A snap-fit ​​frame (371) corresponding to each telescopic shaft (491) is fixedly installed on the inner wall of the annular panel (37).

4. The yarn bobbin self-changing mechanism for a spinning machine according to claim 3, characterized in that: The snap-fit ​​frame (371) is inclined on the side near the telescopic shaft (491). When the telescopic shaft (491) enters the annular panel (37), the telescopic shaft (491) moves along the inclined side of the snap-fit ​​frame (371) and finally enters the snap-fit ​​frame (371). A torsion spring (38) is connected between the annular panel (37) and the annular sleeve (34).

5. The self-changing yarn bobbin mechanism for a spinning machine according to claim 3, characterized in that: A force-bearing shaft (372) is fixedly installed on the annular panel (37), and an action rod (54) is fixedly installed on the L-shaped plate frame (9). The action rod (54) is located on the motion trajectory of the force-bearing shaft (372). The top of the action rod (54) is inclined. A button (55) is fixedly installed on the top of the action rod (54). The button (55) is connected to the conveying mechanism (5) by an electrical signal.

6. The self-changing yarn bobbin mechanism for a spinning machine according to claim 1, characterized in that: The spinning machine body (1) is also symmetrically equipped with inclined conveying rails (7). Unwound yarn bobbins (8) are placed in the inclined conveying rails (7), and the ends of the yarn bobbins (8) slide within the inclined conveying rails (7).

7. The self-changing yarn bobbin mechanism for a spinning machine according to claim 1, characterized in that: When the iron shaft (42) is not subjected to the force of magnet 2 (53) or ring magnet (6), the ball (422) on the iron shaft (42) is located in the sliding groove (47).

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