Transfer device

Abstract

The present application provides a transfer device, belonging to the technical field of knitting machines. It comprises a transfer disc, a plurality of transfer needles distributed along the circumference of the transfer disc and capable of moving horizontally along the radial direction of the transfer disc, a return force applying part provided on the transfer needle, the transfer needle being suspended at the bottom of the transfer disc through a slider rail structure, a force receiving part provided on the transfer needle, the force receiving part being exposed to the top of the transfer disc through a force receiving part movable slot of the transfer disc, at least three radial push plates distributed along the circumference of the top of the transfer disc, the radial push plates being capable of acting on the force receiving part to push the transfer needle to move radially outward when the radial push plates move outward, and the radial push plates being connected with a radial driving mechanism. The force of each transfer needle is balanced, the transfer needle can move radially outward at a uniform speed and in a stable manner, the driving precision and stability are good, the transfer needle can only move horizontally along the radial direction of the transfer disc, deviation in other positions during the radial movement of the transfer needle can be avoided, and the quality and efficiency of the operation of transferring the sock thread can be ensured.

Description

Technical Field

[0001] This invention belongs to the field of knitting machinery technology and relates to a transfer device. Background Technology

[0002] In sock production, semi-finished socks are typically produced first in the cylinder of a sock knitting machine. At this stage, the toes of the socks are not sewn shut. A transfer device then removes the semi-finished socks from the cylinder and transfers them to a sewing head plate. Finally, a sewing machine sews the toes of the socks shut. The transfer device includes transfer needles mounted on the transfer plate. Driven by a drive mechanism, the transfer needles move radially along the transfer plate and cooperate with the vertical needles of the sock knitting machine to transfer the yarn.

[0003] The existing transfer needle drive mechanism has poor driving accuracy and stability, which can easily lead to problems such as needle leakage, looping, and needle detachment. Furthermore, due to poor positioning accuracy and precision control, or external influences such as the driving method, the transfer needle is very prone to positional deviation during radial movement, which seriously affects product quality, increases the defect rate, increases equipment and material consumption, and requires frequent shutdowns for adjustment, resulting in a decrease in production efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a transfer device.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A transfer device includes a transfer disk with a plurality of transfer needles distributed circumferentially and capable of horizontally moving radially thereon. Each transfer needle has a return force-applying part. The transfer needles are suspended from the bottom of the transfer disk by a slider rail structure. Each transfer needle has a force-receiving part that passes through a force-receiving part movable groove of the transfer disk and protrudes to the top of the transfer disk. At least three radial push plates distributed circumferentially are provided at the top of the transfer disk. When the radial push plates move outward, they can act on the force-receiving parts to push the transfer needles radially outward. The radial push plates are connected to a radial drive mechanism.

[0007] The radial drive mechanism can synchronously drive the radial push plate to move radially outward along the transfer disk. The radial push plate can evenly act on the force-bearing parts of each transfer needle, so that each transfer needle is subjected to uniform force, and each transfer needle can move radially outward at a uniform speed and with good driving accuracy and driving stability. The slider and slide rail structure can restrict the transfer needle to move horizontally only along the radial direction of the transfer disk, which can ensure that no other positional deviations occur during the radial movement of the transfer needle, so as to achieve precision control, facilitate precise control of the position of the transfer needle, ensure accurate operation, reduce the complexity of operation, reduce the risk of error, and ensure the quality and efficiency of the sock thread transfer operation.

[0008] In the aforementioned transfer device, the radial drive mechanism includes an eccentric wheel, and a radial movement guide assembly is provided between the radial push plate and the transfer disk. The ends of two adjacent radial push plates are overlapped, and each end of the overlapping radial push plate is provided with a strip hole. The eccentric body of the eccentric wheel is disposed in the strip hole. When the eccentric wheel rotates, it can drive the radial push plate to move radially. The eccentric wheel is connected to the eccentric wheel drive assembly.

[0009] The eccentric wheel drive assembly can drive the eccentric wheel to rotate. When the eccentric wheel rotates, the eccentric body of the eccentric wheel acts on the strip hole of the radial push plate to drive the radial push plate to move radially along the transfer disk. The radial movement guide assembly plays a role in guiding the radial movement of the radial push plate during the radial movement of the radial push plate along the transfer disk, ensuring that the movement position of the radial push plate will not deviate, so that the radial push plate can act evenly on the force-bearing parts of each transfer needle to achieve precision control, facilitate precise control of the position of the transfer needle, and ensure accurate operation.

[0010] In the aforementioned transfer device, the eccentric wheel drive assembly includes external toothed bodies disposed on the main wheel of the eccentric wheel, a plurality of external toothed bodies being connected to a drive gear ring, and the drive gear ring being connected to a gear ring drive unit.

[0011] The gear ring drive unit can drive the drive gear ring to rotate, and drive the gear ring to mesh with the outer tooth body. When the drive gear ring rotates, it can drive the main wheel of the eccentric wheel to rotate, thereby driving the radial push plate to move radially.

[0012] In the above-mentioned transfer device, the bottom and top of the main wheel are respectively in contact with the radial push plate and the annular cover plate, and the central shaft of the main wheel passes through the annular cover plate and can rotate between the radial push plate and the annular cover plate.

[0013] The bottom of the drive gear ring is in contact with the inner step of the radial push plate and the inner side of the positioning plate of the transfer disk, and the upper surface of the drive gear ring is in contact with the annular cover plate.

[0014] The annular cover plate is fixed on the transfer plate.

[0015] The central shaft of the main wheel passes through the annular cover plate and can rotate between the radial push plate and the annular cover plate. The annular cover plate and the central shaft serve to position the main wheel. The inner step on the inner side of the positioning plate serves to rotate and position the drive gear ring to ensure the rotational accuracy of the drive gear ring.

[0016] In the aforementioned transfer device, the radial movement guide assembly includes a radial strip groove disposed on a radial push plate, and a positioning pin fixed on the transfer disk passes through the radial strip groove.

[0017] The locating pin on the transfer plate passes through the radial groove. The locating pin and the radial groove cooperate to guide the radial movement of the radial push plate as it moves radially along the transfer plate, ensuring that the position of the radial push plate does not deviate and thus guaranteeing the movement accuracy of the radial push plate.

[0018] In the aforementioned transfer device, the radial push plate has an arc-shaped inclined plate that gradually slopes outward from top to bottom on its outer side. A ring groove is provided between several force-bearing movable grooves and the top of the transfer disk. The upper end of the force-bearing part and the arc-shaped inclined plate are set in the ring groove, and the outer end of the arc-shaped inclined plate abuts against the inner side of the force-bearing part.

[0019] When the radial pusher moves radially outward along the transfer disk, the arc-shaped inclined plate on the outer side of the radial pusher acts on the force-bearing part of the transfer needle to push the transfer needle to move radially outward along the transfer disk.

[0020] In the aforementioned transfer device, the gear ring drive unit includes a drive connecting ear disposed on the outer wall of the drive gear ring, the drive connecting ear being able to be connected to the gear ring rotary driver.

[0021] The gear ring rotary actuator operates by driving the gear ring to rotate via the drive connector.

[0022] In the above-mentioned transfer device, the slider rail structure includes a groove provided at the bottom of the transfer disk and extending radially therein. A slider is provided in the groove. The bottom of the slider is fixed to the top of the transfer needle. A transfer needle anti-sway groove is provided between the groove and the bottom of the transfer disk, which allows the transfer needle to move radially along the transfer disk. The force-bearing part is provided on the rear end of the transfer needle, and the front end of the transfer needle is a hook tongue.

[0023] During the radial movement of the transfer needle along the transfer disk, the sliding groove at the bottom of the transfer disk cooperates with the slider at the top of the transfer needle to restrict the transfer needle to move horizontally only along the radial direction of the transfer disk. This ensures that no other positional deviations occur during the radial movement of the transfer needle, thereby achieving precision control and facilitating accurate control of the transfer needle's position. The transfer needle anti-sway groove is used to accommodate the transfer needle and allow it to move radially along the transfer disk, effectively preventing swaying during the movement of the transfer needle, thus achieving precision control and ensuring that the position of the transfer needle does not deviate.

[0024] In the aforementioned transfer device, the outer end of the slider is sleeved on the force-bearing part and connected to the transfer needle through a tenon and mortise structure. The inner end of the slider is provided with a slot, and the positioning post at the top of the transfer needle passes through the slot. A gap is left between the slot and the positioning post to allow the slider to move axially after the slot is fitted with the positioning post so that the tenon and mortise structure can lock it. The slider, the positioning post, and the transfer needle are welded, bonded, or snapped together in the gap.

[0025] The slider is fixedly connected to the transfer pin through a mortise and tenon structure, ensuring a stable fixation. The positioning post at the top of the transfer pin passes through the slot at the front end of the slider and cooperates with the slot to perform a positioning function. The gap between the slot and the positioning post facilitates the locking of the mortise and tenon structure. The slider, positioning post, and transfer pin are welded, glued, or snapped together within the gap to ensure a stable connection.

[0026] In the above-mentioned transfer device, the tenon structure includes a tenon provided on one end of the slider, the force-bearing part is located on the rear end of the transfer needle, the tenon is sleeved on the force-bearing part, and after being sleeved, the slider can be moved axially so that one end of it can be inserted into the tenon of the force-bearing part, and the other end of the slider is fixedly connected to the transfer needle.

[0027] The force-bearing part is provided with a reinforcing rib on the side away from the mortise. The reinforcing rib is integrated with the transfer pin and the force-bearing part. A gap is formed between the mortise and the reinforcing rib. The reinforcing rib is welded, bonded or snapped to the slider and the transfer pin within the gap.

[0028] The reinforcing ribs on the load-bearing part, when matched with the tenon of the slider, can strengthen the connection between the slider and the transfer pin, thereby further ensuring a stable connection between the slider and the transfer pin. The gap between the tenon and the reinforcing rib facilitates the locking of the tenon and mortise structure. The reinforcing ribs are welded, bonded, or snapped together with the slider and the transfer pin within the gap, which can ensure the stability of the connection between the slider and the transfer pin.

[0029] In the above-mentioned transfer device, the transfer needle is plate-shaped, the maximum width of the slider is greater than the width of the transfer needle, one side of the slider is flush with the side of the transfer needle, and the other side protrudes from the side wall of the transfer needle.

[0030] Alternatively, both sides of the slider protrude from the sidewalls on either side of the transfer needle.

[0031] The maximum width of the slider is greater than the width of the transfer needle to ensure a secure connection between the slider and the transfer needle.

[0032] In the aforementioned transfer device, the return force application part is located on the rear end of the transfer needle; the opening and force receiving part of the hook tongue are both located on the top of the transfer needle, and a clearance groove is provided on the outer end of the hook tongue.

[0033] The relief groove on the outer end of the hook tongue makes it easier for the loop on the knitting needle to enter the traction surface of the hook tongue when the hook tongue approaches the knitting needle.

[0034] Compared with existing technologies, the advantages of this invention are: 1. The radial pusher plate can evenly apply force to the force-bearing parts of each transfer needle, ensuring that each transfer needle moves radially outward at a uniform speed and with good driving accuracy and stability. 2. The transfer needles can only move horizontally along the radial direction of the transfer disc, ensuring that there are no deviations in other positions during the radial movement of the transfer needles, thus achieving precision control and facilitating accurate control of the position of the transfer needles, ensuring the quality and efficiency of the sock thread transfer operation. 3. The radial pusher plate does not deviate in position during radial movement, resulting in high driving accuracy. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure provided by the present invention;

[0036] Figure 2 This is a schematic diagram of the radial drive mechanism;

[0037] Figure 3 This is a schematic diagram of the eccentric wheel drive assembly;

[0038] Figure 4 This is an assembly diagram of the transfer needle;

[0039] Figure 5 This is a schematic diagram of the radial push plate structure;

[0040] Figure 6 This is a schematic diagram of the eccentric wheel.

[0041] Figure 7 This is a schematic diagram of the transfer needle;

[0042] Figure 8 This is a structural diagram of a mortise and tenon joint;

[0043] Figure 9 This is a schematic diagram of the slider's structure;

[0044] Figure 10 This is a schematic diagram of the transfer needle in Example 2;

[0045] Figure 11 This is a schematic diagram of the mortise and tenon structure in Example 2.

[0046] In the diagram, 1. Transfer disk; 2. Transfer pin; 3. Return force application part; 4. Slider slide rail structure; 5. Force receiving part; 6. Force receiving part movable groove; 7. Radial push plate; 8. Radial drive mechanism; 9. Eccentric wheel; 10. Radial movement guide assembly; 11. Strip hole; 12. Eccentric wheel drive assembly; 13. Eccentric body; 14. Main wheel; 15. External gear body; 16. Drive gear ring; 17. Gear ring drive unit; 18. Annular cover plate; 19. Central shaft; 20. Positioning disk; 21. Inner step; 22. Radial strip. 22. Groove; 23. Positioning pin; 24. Arc-shaped inclined plate; 25. Annular groove; 26. Drive connecting ear; 27. Slide groove; 28. Slider; 29. ​​Transfer pin anti-sway groove; 30. Hook tongue; 31. Mortise and tenon structure; 32. Hole groove; 33. Positioning post; 34. Gap; 35. Relief groove; 36. Protrusion; 37. Return force half hole; 38. Tenon; 39. Rotation limit groove; 40. Limiting post; 41. Rotation relief part; 42. Reinforcing rib; 43. Gap; 44. Spare slider groove; 45. Detailed Implementation

[0047] like Figures 1-4 As shown, a transfer device includes a transfer disk 1, on which a plurality of transfer needles 2 are arranged circumferentially and can move horizontally in the radial direction. Each transfer needle 2 has a return force application part 3. The transfer needles 2 are suspended from the bottom of the transfer disk 1 by a slider rail structure 4. Each transfer needle 2 has a force receiving part 5, which passes through the force receiving part movable groove 6 of the transfer disk 1 and protrudes to the top of the transfer disk 1. At least three radial push plates 7 are arranged circumferentially on the top of the transfer disk 1. When the radial push plates 7 move outward, they can act on the force receiving part 5 to push the transfer needles 2 radially outward. The radial push plates 7 are connected to a radial drive mechanism 8.

[0048] In this invention, the radial drive mechanism 8 can synchronously drive the radial push plate 7 to move radially outward along the transfer disk 1. When the radial push plate 7 moves radially outward along the transfer disk 1, it can act on the force-receiving part 5 of the transfer needle 2 to push the transfer needle 2 to move radially outward along the transfer disk 1. The return force-applying part 3 on the transfer needle 2 can reset the transfer needle 2 so that the transfer needle 2 moves radially inward along the transfer disk 1 to reset. During the radial movement of the transfer needle 2 along the transfer disk 1, it cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation.

[0049] The radial drive mechanism 8 can synchronously drive the radial push plate 7 to move radially outward along the transfer disk 1. The radial push plate 7 can evenly act on the force-bearing part 5 of each transfer needle 2, so that each transfer needle 2 is subjected to uniform force, and each transfer needle 2 can move radially outward at a uniform speed and stably. The driving accuracy is poor and the driving stability is good. The transfer needle 2 is suspended at the bottom of the transfer disk 1 by the slider slide rail structure 4. The slider slide rail structure 4 can restrict the transfer needle 2 to move horizontally along the radial direction of the transfer disk 1, which can ensure that there will be no deviation in other positions during the radial movement of the transfer needle 2, so as to achieve precision control, facilitate precise control of the position of the transfer needle 2, ensure accurate operation, reduce the complexity of operation, reduce the risk of error, and ensure the quality and efficiency of the sock thread transfer operation.

[0050] Specifically, combining Figures 1-6 As shown, the radial drive mechanism 8 includes an eccentric wheel 9, a radial movement guide assembly 10 between the radial push plate 7 and the transfer disk 1, the ends of two adjacent radial push plates 7 are stacked together, and the ends of the radial push plates 7 at the stacked point are provided with strip holes 11. The eccentric body 13 of the eccentric wheel 9 is set in the strip hole 11. When the eccentric wheel 9 rotates, it can drive the radial push plate 7 to move radially. The eccentric wheel 9 is connected to the eccentric wheel drive assembly 12.

[0051] The eccentric wheel drive assembly 12 can drive the eccentric wheel 9 to rotate. When the eccentric wheel 9 rotates, the eccentric body 13 of the eccentric wheel 9 acts on the strip hole 11 of the radial push plate 7 to drive the radial push plate 7 to move radially along the transfer disk 1. The radial movement guide assembly 10 between the radial push plate 7 and the transfer disk 1 plays a role in guiding the radial movement of the radial push plate 7 along the transfer disk 1, ensuring that the movement position of the radial push plate 7 will not deviate, so that the radial push plate 7 can act evenly on the force-bearing part 5 of each transfer needle 2 to achieve precision control, facilitate precise control of the position of the transfer needle 2, and ensure accurate operation.

[0052] Specifically, combining Figures 1-3 As shown, the eccentric wheel drive assembly 12 includes an external tooth body 15 disposed on the main wheel 14 of the eccentric wheel 9. Several external tooth bodies 15 are connected to the drive gear ring 16. The drive gear ring 16 is connected to the gear ring drive unit 17. The gear ring drive unit 17 includes a drive connecting ear 26 disposed on the outer wall of the drive gear ring 16. The drive connecting ear 26 can be connected to the gear ring rotary driver.

[0053] The gear ring rotary actuator can drive the drive gear ring 16 to rotate through the drive connecting ear 26. The drive gear ring 16 meshes with the outer tooth body 15 for transmission. When the drive gear ring 16 rotates, it can drive the main wheel 14 of the eccentric wheel 9 to rotate, thereby driving the radial push plate 7 to move radially.

[0054] Specifically, combining Figures 1-3As shown, the bottom and top of the main wheel 14 are in contact with the radial push plate 7 and the annular cover plate 18, respectively. The central shaft 19 of the main wheel 14 passes through the annular cover plate 18 and can rotate between the radial push plate 7 and the annular cover plate 18.

[0055] The bottom of the drive gear ring 16 is in contact with the inner step 21 on the upper surface of the radial push plate 7 and the inner side of the positioning disk 20 of the transfer disk 1, and the upper surface of the drive gear ring 16 is in contact with the annular cover plate 18.

[0056] The annular cover plate 18 is fixed on the transfer plate 1.

[0057] The central shaft 19 of the main wheel 14 passes through the annular cover plate 18 and can rotate between the radial push plate 7 and the annular cover plate 18. The annular cover plate 18 and the central shaft 19 serve to position the main wheel 14. The inner step 21 on the inner side of the positioning disk 20 serves to rotate and position the drive gear ring 16 to ensure the rotational accuracy of the drive gear ring 16.

[0058] Specifically, combining Figure 2 , Figure 3 and Figure 5 As shown, the radial movement guide assembly 10 includes a radial strip groove 22 disposed on the radial push plate 7, and a positioning pin 23 fixed on the transfer disk 1 passes through the radial strip groove 22.

[0059] The positioning pin 23 on the transfer plate 1 passes through the radial strip groove 22. The positioning pin 23 and the radial strip groove 22 cooperate to guide the radial movement of the radial push plate 7 during the radial movement of the radial push plate 7 along the transfer plate 1, ensuring that the moving position of the radial push plate 7 will not deviate, so as to ensure the moving accuracy of the radial push plate 7.

[0060] Specifically, combining Figure 2 , Figure 3 and Figure 5 As shown, the radial push plate 7 has an arc-shaped inclined plate 24 that gradually slopes outward from top to bottom on the outer side. Several force-bearing movable grooves 6 are provided with an annular groove 25 between them and the top of the transfer disk 1. The upper end of the force-bearing part 5 and the arc-shaped inclined plate 24 are located in the annular groove 25, and the outer end of the arc-shaped inclined plate 24 abuts against the inner side of the force-bearing part 5.

[0061] When the radial push plate 7 moves radially outward along the transfer disk 1, the arc-shaped inclined plate 24 on the outer side of the radial push plate 7 acts on the force-bearing part 5 of the transfer needle 2 to push the transfer needle 2 to move radially outward along the transfer disk 1.

[0062] Specifically, combining Figures 1-4As shown, the slider rail structure 4 includes a groove 27 that extends radially along the bottom of the transfer disk 1. A slider 28 is provided in the groove 27. The bottom of the slider 28 is fixed to the top of the transfer needle 2. A transfer needle anti-sway groove 29 that allows the transfer needle 2 to move radially along the transfer disk 1 is provided between the groove 27 and the bottom of the transfer disk 1. The force-bearing part 5 is provided on the rear end of the transfer needle 2. The front end of the transfer needle 2 is a hook tongue 30.

[0063] The slider 28 at the top of the transfer needle 2 is set in the groove 27 of the transfer plate 1. The transfer needle 2 is set in the transfer needle anti-sway groove 29 of the transfer plate 1. When the radial push plate 7 moves outward synchronously, it can act on the force-bearing part 5 of each transfer needle 2 to drive the transfer needle 2 to move radially outward along the transfer plate 1 in the transfer needle anti-sway groove 29. The return force part 3 on the transfer needle 2 can reset the transfer needle 2. During the radial movement of the transfer needle 2 along the transfer plate 1, the hook tongue 30 at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation.

[0064] During the radial movement of the transfer needle 2 along the transfer disk 1, the sliding groove 27 at the bottom of the transfer disk 1 cooperates with the slider 28 at the top of the transfer needle 2 to restrict the transfer needle 2 to move horizontally along the radial direction of the transfer disk 1. This ensures that no other positional deviations occur during the radial movement of the transfer needle 2, thereby achieving precision control and facilitating accurate control of the position of the transfer needle 2. The anti-sway groove 29 is used to accommodate the transfer needle 2 and allow it to move radially along the transfer disk 1, effectively preventing swaying during the movement of the transfer needle 2, thereby achieving precision control and ensuring that the position of the transfer needle 2 does not deviate.

[0065] Specifically, combining Figures 7-9 As shown, the outer end of the slider 28 is sleeved on the force-bearing part 5 and connected to the transfer pin 2 through the tenon and mortise structure 31. The inner end of the slider 28 is provided with a slot 32. The positioning post 33 at the top of the transfer pin 2 passes through the slot 32. A gap 34 is left between the slot 32 and the positioning post 33 to facilitate the axial movement of the slider 28 after the slot 32 is fitted into the positioning post 33 so that the tenon and mortise structure 31 can lock it. The slider 28, the positioning post 33 and the transfer pin 2 are welded, bonded or snapped together in the gap 34.

[0066] The slider 28 is fixedly connected to the transfer pin 2 through the tenon and mortise structure 31, and is securely fixed.

[0067] The positioning pin 33 at the top of the transfer pin 2 passes through the slot 32 at the front end of the slider 28 and cooperates with the slot 32 to play a positioning role. The gap 34 left between the slot 32 and the positioning pin 33 facilitates the locking of the tenon and mortise structure 31. The slider 28, the positioning pin 33 and the transfer pin 2 are welded, glued or snapped together in the gap 34 to ensure a stable connection.

[0068] Specifically, combining Figures 7-9As shown, the mortise and tenon structure 31 includes a tenon 38 provided on one end of the slider 28, the force-bearing part 5 is located on the rear end of the transfer needle 2, the tenon 38 is sleeved on the force-bearing part 5, and after being sleeved, the slider 28 can be moved axially so that one end of it can be inserted into the mortise 39 of the force-bearing part 5, and the other end of the slider 28 is fixedly connected to the transfer needle 2.

[0069] A reinforcing rib 43 is provided on the side of the force-bearing part 5 away from the mortise 39. The reinforcing rib 43 is integrated with the transfer pin 2 and the force-bearing part 5. A gap 44 is formed between the tenon 38 and the reinforcing rib 43. The reinforcing rib 43 is welded, bonded or snapped to the slider 28 and the transfer pin 2 within the gap 44.

[0070] The tenon 38 on one end of the slider 28 is fitted onto the force-receiving part 5 of the transfer needle 2. After the tenon 38 is fitted into the force-receiving part 5, the slider 28 is moved axially so that one end of the tenon 38 is engaged in the mortise 39 of the force-receiving part 5. The mortise 39 of the force-receiving part 5 and one end of the tenon 38 cooperate to ensure a stable connection between the slider 28 and the transfer needle 2.

[0071] The reinforcing rib 43 can be rectangular, triangular, or diagonally braced. In this embodiment, the reinforcing rib 43 is rectangular and its top end is flush with the top end of the slider 28.

[0072] The reinforcing rib 43 on the force-bearing part 5, in conjunction with the tenon 38 of the slider 28, can strengthen the connection between the slider 28 and the transfer needle 2, thereby further ensuring a stable connection between the slider 28 and the transfer needle 2.

[0073] The gap 20 between the tenon 38 and the reinforcing rib 43 allows the slider 28 to move axially after the tenon 38 is fitted into the reinforcing rib 43 and the force-bearing part 5 so that the tenon structure 31 can be locked. The reinforcing rib 43 is welded, bonded or snapped to the slider 28 and the transfer pin 2 within the gap 20, which can ensure the stability of the connection between the slider 28 and the transfer pin 2.

[0074] Preferably, combined with Figures 7-9 As shown, the transfer needle 2 is plate-shaped, the maximum width of the slider 28 is greater than the width of the transfer needle 2, one side of the slider 28 is flush with the side of the transfer needle 2, and the other side protrudes from the side wall of the transfer needle 2.

[0075] Alternatively, both sides of slider 28 protrude from the sidewalls of transfer needle 2.

[0076] One side of the slider 28 is flush with the side of the transfer needle 2, and the other side protrudes from the side wall of the transfer needle 2. The cross-section of the slider 28 and the transfer needle 2 is inverted L-shaped, and the cross-section of the sliding groove 27 on the transfer disk 1 and the anti-sway groove 29 of the transfer needle are inverted L-shaped to match.

[0077] Alternatively, both sides of the slider 28 protrude from the side walls of the transfer needle 2, and the cross-sections of the slider 28 and the transfer needle 2 are T-shaped. The cross-sections of the sliding groove 27 on the transfer disk 1 and the anti-sway groove 29 of the transfer needle are T-shaped accordingly.

[0078] In this embodiment, the cross-sections of the slider 28 and the transfer needle 2 are T-shaped, and the cross-sections of the sliding groove 27 and the anti-sway groove 29 on the transfer disk 1 are T-shaped accordingly.

[0079] Preferably, combined with Figures 7-9 As shown, the return force application part 3 is located on the rear end of the transfer needle 2; the opening of the hook tongue 30 and the force receiving part 5 are both located on the top of the transfer needle 2, and a relief groove 35 is provided on the outer end of the hook tongue 30.

[0080] The relief groove 35 on the outer end of the hook 30 makes it easier for the loop on the knitting needle to enter the traction surface of the hook 30 when the hook 30 approaches the knitting needle.

[0081] Specifically, combining Figures 7-9 As shown, the return force application part 3 includes a return force application half hole 37 provided on the rear end of the transfer needle 2. A tension spring is provided in the return force application half hole 37. When the transfer needle 2 moves radially outward along the transfer disk 1, the tension spring is pulled outward and deformed, which can apply a force radially inward along the transfer disk 1 to the transfer needle 2, thereby resetting the transfer needle 2.

[0082] Specifically, combining Figures 7-9 As shown, the force-receiving part 5 includes a protrusion 36 provided on the rear end of the transfer needle 2.

[0083] The protrusion 36 on the rear end of the transfer needle 2 can drive the transfer needle 2 to move radially outward along the transfer disk 1 after being subjected to force.

[0084] Specifically, combining Figures 1-3 As shown, the drive gear ring 16 has several rotation limiting grooves 40 distributed along its circumference on its outer periphery. On the positioning plate 20, at the inner step 21, there is a limiting post 41 that cooperates with the rotation limiting grooves 40 to limit the rotation of the drive gear ring 16. The bottom of the annular cover plate 18 is connected to the limiting post 41.

[0085] Specifically, combining Figures 1-3 As shown, the inner step 21 is provided with a rotation relief part 42 adapted to the drive connecting ear 26 of the drive gear ring 16. During the rotation of the drive gear ring 16, the rotation relief part 42 plays a role in rotating and repositioning the connecting ear 26.

[0086] Preferably, combined with Figures 1-4 As shown, a spare slider groove 45 is provided between any two adjacent slider grooves 27, and the spare slider groove 45 is staggered vertically from the slider groove 27. The spare slider groove 45 is used to hold the transfer needle 2 in reserve.

[0087] The working principle of the present invention is as follows: the gear ring rotary driver drives the gear ring 16 to rotate through the drive connecting ear 26. Through the meshing transmission between the drive gear ring 16 and the outer tooth body 15, the main wheel 14 of the eccentric wheel 9 is driven to rotate. When the main wheel 14 rotates, the eccentric body 13 of the eccentric wheel 9 acts on the strip hole 11 of the radial push plate 7 to drive the radial push plate 7 to move radially along the transfer disk 1.

[0088] When the radial push plate 7 moves radially outward along the transfer plate 1, the arc-shaped inclined plate 24 on the outer side of the radial push plate 7 acts on the force-bearing part 5 of the transfer needle 2 to push the transfer needle 2 to move radially outward along the transfer plate 1; the slider 28 at the top of the transfer needle 2 moves radially outward along the transfer plate 1 in the groove 27, and the transfer needle 2 moves radially outward along the transfer plate 1 in the anti-sway groove 29 of the transfer needle. The return force-applying part 3 on the transfer needle 2 can reset the transfer needle 2. During the radial movement of the transfer needle 2 along the transfer plate 1, the hook tongue 30 at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation.

[0089] Example 2

[0090] like Figure 10 and Figure 11 As shown, the structure and working principle of this embodiment are basically the same as those of Embodiment 1. The difference is that the reinforcing rib 43 extends to the upper part through the tenon 38.

[0091] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0092] Although this paper extensively uses the following components: 1. Transfer plate; 2. Transfer pin; 3. Return force application part; 4. Slider rail structure; 5. Force receiving part; 6. Force receiving part movable groove; 7. Radial push plate; 8. Radial drive mechanism; 9. Eccentric wheel; 10. Radial movement guide assembly; 11. Strip hole; 12. Eccentric wheel drive assembly; 13. Eccentric body; 14. Main wheel; 15. External gear body; 16. Drive gear ring; 17. Gear ring drive unit; 18. Annular cover plate; 19. Central shaft; 20. Positioning plate; 21. Inner step; 22. Radial strip groove; 23. Positioning pin; 24. Arc-shaped inclined plate; 25. Annular groove; 6. Drive mechanism; 7. Radial push plate; 8. Radial drive mechanism; 9. Eccentric wheel; 10. Radial movement guide assembly; 11. Strip hole; 12. Eccentric wheel drive assembly; 13. Main wheel; 14. External gear body; 15. Drive gear ring; 16. Drive gear ring drive unit; 17. Annular cover plate; 18. Central shaft; 19. Positioning plate; 20. Inner step; 21. Radial strip groove; 22. Positioning pin; 23. Arc-shaped inclined plate; 24. Annular groove; 25. Drive mechanism; 16. Radial push plate; 17. Radial push plate; 18. Central shaft; 19. Positioning plate; 20. Inner step; 21. Radial strip groove; 22. Positioning pin; 23. Arc-shaped inclined plate; 24. Annular groove; 25. Drive mechanism; 18. Radial push plate; 19. Central shaft; 20. Positioning plate; 20. Inner step; 21. Radial strip groove; The following components are used: movable connecting ear 26, sliding groove 27, slider 28, transfer pin anti-sway groove 29, hook tongue 30, tenon and mortise structure 31, hole groove 32, positioning post 33, gap 34, clearance groove 35, protrusion 36, return force half hole 37, tenon 38, mortise 39, rotation limit groove 40, limit post 41, rotation clearance part 42, reinforcing rib 43, gap 44, spare slider groove 45, etc. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A transfer device comprising a transfer disk (1), wherein the transfer disk (1) is provided with a plurality of transfer needles (2) distributed circumferentially thereon and capable of horizontally moving radially thereon, and the transfer needles (2) are provided with a return force application part (3), characterized in that, The transfer needle (2) is suspended at the bottom of the transfer disk (1) by a slider rail structure (4). The transfer needle (2) is provided with a force-bearing part (5). The force-bearing part (5) passes through the force-bearing part movable groove (6) of the transfer disk (1) and protrudes to the top of the transfer disk (1). At least three radial push plates (7) are provided on the top of the transfer disk (1) and distributed in a circumferential direction. When the radial push plates (7) move outward, they can act on the force-bearing part (5) to push the transfer needle (2) to move radially outward. The radial push plates (7) are connected to the radial drive mechanism (8). The radial drive mechanism (8) includes an eccentric wheel (9). A radial movement guide assembly (10) is provided between the radial push plates (7) and the transfer disk (1). The ends of two adjacent radial push plates (7) overlap each other. The radial push plates (7) at the overlap point are connected to each other. Each end of the eccentric wheel (9) is provided with a strip hole (11). The eccentric body (13) of the eccentric wheel (9) is set in the strip hole (11). When the eccentric wheel (9) rotates, it can drive the radial push plate (7) to move radially. The eccentric wheel (9) is connected to the eccentric wheel drive assembly (12). The eccentric wheel drive assembly (12) includes an external tooth body (15) set on the main wheel (14) of the eccentric wheel (9). Several external teeth bodies (15) are connected to the drive gear ring (16). The drive gear ring (16) is connected to the gear ring drive unit (17). The bottom and top of the main wheel (14) are in contact with the radial push plate (7) and the annular cover plate (18) respectively. The central shaft (19) of the main wheel (14) passes through the annular cover plate (18) and can rotate between the radial push plate (7) and the annular cover plate (18). The bottom of the drive gear ring (16) is in contact with the upper surface of the radial push plate (7) and the inner step (21) inside the positioning disk (20) of the transfer disk (1), and the upper surface of the drive gear ring (16) is in contact with the annular cover plate (18). The annular cover plate (18) is fixed on the transfer disk (1); The radial push plate (7) is provided with an arc-shaped inclined plate (24) that gradually slopes outward from top to bottom. A ring groove (25) is provided between a number of force-bearing movable grooves (6) and the top of the transfer disk (1). The upper end of the force-bearing part (5) and the arc-shaped inclined plate (24) are set in the ring groove (25), and the outer end of the arc-shaped inclined plate (24) abuts against the inner side of the force-bearing part (5).

2. The transfer device according to claim 1, characterized in that, The radial movement guide assembly (10) includes a radial strip groove (22) disposed on a radial push plate (7), and a positioning pin (23) fixed on a transfer disk (1) is inserted in the radial strip groove (22).

3. The transfer device according to claim 1, characterized in that, The gear ring drive unit (17) includes a drive connecting ear (26) disposed on the outer wall of the drive gear ring (16), and the drive connecting ear (26) can be connected to the gear ring rotary driver.

4. The transfer device according to any one of claims 1-3, characterized in that, The slider rail structure (4) includes a groove (27) extending radially from the bottom of the transfer disk (1), a slider (28) is provided in the groove (27), the bottom of the slider (28) is fixed to the top of the transfer needle (2), and a transfer needle anti-sway groove (29) is provided between the groove (27) and the bottom of the transfer disk (1) to allow the transfer needle (2) to move radially along the transfer disk (1). The force-bearing part (5) is provided on the rear end of the transfer needle (2), and the front end of the transfer needle (2) is a hook tongue (30).

5. The transfer device according to claim 4, characterized in that, The outer end of the slider (28) is sleeved on the force-bearing part (5) and connected to the transfer needle (2) through the tenon structure (31). The inner end of the slider (28) is provided with a slot (32). The positioning post (33) at the top of the transfer needle (2) passes through the slot (32). A gap (34) is left between the slot (32) and the positioning post (33) to facilitate the axial movement of the slider (28) after the slot (32) is sleeved on the positioning post (33) so that the tenon structure (31) can lock it. The slider (28), the positioning post (33) and the transfer needle (2) are welded, bonded or snapped together in the gap (34).

6. The transfer device according to claim 5, characterized in that, The mortise and tenon structure (31) includes a tenon (38) provided on one end of the slider (28), the force-bearing part (5) is located on the rear end of the transfer needle (2), the tenon (38) is sleeved on the force-bearing part (5), and after being sleeved, the slider (28) can be moved axially so that one end of it can be inserted into the mortise (39) of the force-bearing part (5), and the other end of the slider (28) is fixedly connected to the transfer needle (2); The force-bearing part (5) is provided with a reinforcing rib (43) on the side away from the mortise (39). The reinforcing rib (43) is integrated with the transfer needle (2) and the force-bearing part (5). A gap (44) is formed between the tenon (38) and the reinforcing rib (43). The reinforcing rib (43) is welded, bonded or snapped to the slider (28) and the transfer needle (2) within the gap (44).

7. The transfer device according to claim 4, characterized in that, The transfer needle (2) is in the shape of a sheet, and the maximum width of the slider (28) is greater than the width of the transfer needle (2). One side of the slider (28) is flush with the side of the transfer needle (2), and the other side protrudes from the side wall of the transfer needle (2). Alternatively, both sides of the slider (28) protrude from the sidewalls of the transfer needle (2).

8. The transfer device according to claim 4, characterized in that, The return force application part (3) is located on the rear end of the transfer needle (2); The opening and the force-bearing part (5) of the hook tongue (30) are both located at the top of the transfer needle (2), and a relief groove (35) is provided on the outer end of the hook tongue (30).

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