Transfer needle and transfer needle assembly

Abstract

This invention provides a transfer needle and transfer needle assembly, belonging to the field of knitting machinery technology. It includes a horizontal needle body and a hook at the front end of the horizontal needle body. A radial force-applying part is also provided on the horizontal needle body. The horizontal needle body is connected to a substrate near the hook via a first flexible support structure. The rear end of the horizontal needle body is connected to one end of an L-shaped swing arm via a second flexible support structure. A swing force-receiving structure is provided between the L-shaped swing arm and the horizontal needle body. A hinge hole is provided between the two ends of the L-shaped swing arm. The horizontal needle body exhibits high precision and strong stability during radial movement, reducing the likelihood of missed needles, loops, or needle slippage. The transfer needle is securely fixed, and the swing arm drive mechanism provides good driving stability.

Description

Technical Field

[0001] This invention belongs to the field of knitting machinery technology and relates to a transfer needle and a transfer needle assembly. 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 the sewing head plate, where a sewing machine sews the toes shut. The transfer device usually has a transfer needle. During its radial movement, the transfer needle works in conjunction with the vertical needles of the sock knitting machine to transfer the yarn. However, existing transfer needles suffer from poor precision and instability during movement, easily leading to issues such as missed stitches, loops, and needle slippage. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing a transfer needle.

[0004] Another object of the present invention is to provide a transfer needle assembly.

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

[0006] A transfer needle includes a horizontal needle body and a hook tongue disposed at the front end of the horizontal needle body. A radial force-applying part is also provided on the horizontal needle body. The horizontal needle body is connected to a substrate near the hook tongue through a first flexible support structure. The rear end of the horizontal needle body is connected to one end of an L-shaped swing rod through a second flexible support structure. A swing force-receiving structure is provided between the L-shaped swing rod and the horizontal needle body. A hinge hole is provided between the two ends of the L-shaped swing rod.

[0007] The L-shaped swing arm is hinged to the transfer plate via an annular pin passing through the hinge hole. When the L-shaped swing arm rotates upward around the hinge hole, the horizontal needle body can be driven to move radially outward through the swing force structure. The horizontal needle body can be subjected to radial inward force through the radial force application part, causing the horizontal needle body to move radially inward. The swing force structure drives the L-shaped swing arm to rotate downward around the hinge hole. During the radial movement of the horizontal needle body, the hook at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation. The front end of the horizontal needle body is connected to the base plate through the first flexible support structure, and the rear end is connected to one end of the L-shaped swing arm through the second flexible support structure. The first and second flexible support structures play a flexible support role, which eliminates the idle stroke and mechanical friction in the transmission process during the radial movement of the horizontal needle body, and can obtain ultra-high displacement resolution, improving the accuracy and stability of the radial movement of the horizontal needle body.

[0008] In the aforementioned transfer needle, the first flexible support structure includes a first flexible hinge disposed near the hook tongue of the horizontal needle body, one end of which is connected to the horizontal needle body and the other end of which is connected to the substrate.

[0009] The horizontal needle body is connected to the substrate through the first flexible hinge. When the horizontal needle body moves radially, the idle stroke and mechanical friction in the transmission process are eliminated, which improves the accuracy and stability of the radial movement.

[0010] In the aforementioned transfer needle, a first connecting rod is provided between the first flexible hinge and the substrate, and the other end of the first flexible hinge is connected to the lower end of the first connecting rod. A third flexible hinge is provided between the first connecting rod and the substrate, and one end of the third flexible hinge is connected to the upper end of the first connecting rod, while the other end of the third flexible hinge is connected to the substrate.

[0011] The first connecting rod is used to connect the horizontal needle body and the substrate. The two ends of the first connecting rod are connected to the horizontal needle body and the substrate through the first flexible hinge and the third flexible hinge, respectively. During the radial movement of the horizontal needle body, the idle stroke and mechanical friction can be eliminated, thereby improving the accuracy and stability of the radial movement of the horizontal needle body.

[0012] In the aforementioned transfer needle, the second flexible support structure includes a second flexible hinge disposed between one end of the L-shaped lever and the rear end of the horizontal needle body.

[0013] The rear end of the horizontal needle body is connected to the L-shaped rocker arm via a second flexible hinge. During the radial movement of the horizontal needle body, idle stroke and mechanical friction can be eliminated, thereby improving the accuracy and stability of the radial movement of the horizontal needle body.

[0014] In the aforementioned transfer needle, the first flexible hinge, the third flexible hinge, and the second flexible hinge are either straight or non-straight; or, the first flexible hinge, the third flexible hinge, and the second flexible hinge are either S-shaped or Z-shaped.

[0015] The first, third, and second flexible hinges are S-shaped or Z-shaped, which can increase the amount of flexibility.

[0016] In the aforementioned transfer needle, the swing force-bearing structure includes a first protrusion on the rear end of the horizontal needle body, and a second protrusion at the lower end of the L-shaped swing rod, with the side of the first protrusion abutting against the side of the second protrusion.

[0017] The first protrusion on the rear end of the horizontal needle body abuts against the second protrusion on the lower end of the L-shaped rocker arm. When the L-shaped rocker arm rotates upward around the hinge hole, it can drive the horizontal needle body to move radially outward. When the horizontal needle body moves radially inward, it can drive the L-shaped rocker arm to rotate downward around the hinge hole.

[0018] In the aforementioned transfer needle, a clearance structure is provided between the second protruding side and the upper inner corner of the second protrusion.

[0019] The clearance structure between the side of the second protrusion and the inner corner of the second protrusion serves to make way.

[0020] In the aforementioned transfer needle, an inclined reinforcing part is provided between the second protrusion and the L-shaped rocker arm.

[0021] The inclined reinforcement between the second protrusion and the L-shaped rocker arm can increase the contact area between the second protrusion and the first protrusion, thereby increasing the force.

[0022] In the aforementioned transfer needle, the upper part of the L-shaped swing arm is provided with a lifting and yielding slope that gradually slopes downward from the front end to the rear end.

[0023] The lifting clearance ramp on the L-shaped rocker arm acts as a clearance mechanism when the L-shaped rocker arm rotates upward around the hinge hole, thus avoiding interference.

[0024] In the aforementioned transfer needle, the radial force-applying part includes a clamping spring groove, which is located in the middle or rear of the horizontal needle body.

[0025] The clamping spring is provided in the clamping spring slot, which can make the horizontal needle body move radially inward. The clamping spring can apply a radially inward force to the horizontal needle body.

[0026] In the aforementioned transfer needle, the substrate is provided with a hook.

[0027] The hooks on the substrate facilitate substrate assembly.

[0028] In the aforementioned transfer needle, one end of the hinge hole has an opening, and the minimum diameter of the inner end of the opening is smaller than the diameter of the hinge hole.

[0029] An opening is provided at one end of the hinge hole to reduce the friction when the L-shaped rocker arm rotates.

[0030] A transfer needle assembly includes a transfer disk with a plurality of transfer needles distributed along the circumferential direction below it. A substrate is connected to the transfer disk via a detachable substrate fixing structure. An L-shaped rocker arm is connected to the transfer disk via an annular pin passing through a hinge hole. The other end of the L-shaped rocker arm is connected to a rocker arm drive mechanism that drives it to rotate upward around the hinge hole, thereby causing the horizontal needle body to move radially outward. A hoop spring is provided on the radial force application part, which can cause the horizontal needle body to return to its radial inward position after the rocker arm drive mechanism returns to its original position.

[0031] The substrate and the transfer plate are connected by a detachable substrate fixing structure, which is convenient to disassemble and assemble and the connection is stable. The L-shaped swing arm is hinged to the transfer plate through an annular pin ring passing through the hinge hole. The swing arm drive mechanism can drive it to rotate upward around the hinge hole, thereby moving the horizontal needle body radially outward. When the swing arm drive mechanism is reset, the hoop spring on the radial force application part can make the horizontal needle body radially inward reset. During the radial movement of the horizontal needle body, the hook at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation.

[0032] In the aforementioned transfer needle assembly, the detachable substrate fixing structure includes a substrate mounting groove that vertically penetrates the transfer disk, a hook groove is provided in the substrate mounting groove, and the substrate is provided with hooks that can engage with the hook grooves. All hooks are fixed by clamps.

[0033] The hooks on the substrate engage with the hook grooves in the substrate mounting slots, ensuring a secure fixation of the substrate and facilitating easy assembly and disassembly.

[0034] In the aforementioned transfer needle assembly, a needle ring is provided on the inner side of the transfer tray, and a substrate retaining groove that mates with the front end of the substrate is provided on the inner wall of the needle ring. A needle body movable clearance groove is also provided on the inner wall of the needle ring, and a needle body movable groove is provided on the lower end of the needle ring.

[0035] The substrate slot on the inner wall of the needle ring cooperates with the front end of the substrate to strengthen the fixation of the substrate. The needle body movement clearance groove on the inner wall of the needle ring plays a clearance role during the movement of the first connecting rod. The needle body movement groove at the lower end of the needle ring plays a clearance role when the horizontal needle body moves radially.

[0036] In the aforementioned transfer needle assembly, the swing arm drive mechanism includes a swing lifting ring disposed below the other end of the L-shaped swing arm, and the swing lifting ring is connected to the lifting drive assembly.

[0037] The lifting drive assembly can drive the swing lifting ring to move up and down. When the swing lifting ring rises, it abuts against the other end of the L-shaped swing rod, causing the L-shaped swing rod to rotate upward around the hinge hole. It also drives the horizontal needle body to move radially outward through the swing force structure. When the swing lifting ring falls, the hoop spring on the radial force application part can make the horizontal needle body return to its radial inward position. During the radial movement of the horizontal needle body, the hook at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation.

[0038] In the aforementioned transfer needle assembly, the lifting drive assembly includes a cylindrical cam fixed ring disposed outside the swing lifting ring, the cylindrical cam fixed ring being fixedly connected to the transfer disk, and a cylindrical cam moving ring sleeved on the cylindrical cam fixed ring and rotatably connected to it. There are several drive rods distributed along the circumferential direction between the swing lifting ring and the cylindrical cam moving ring. The inner end of the drive rod is fixedly connected to the swing lifting ring, and the outer end of the drive rod passes through the vertical stroke through hole of the cylindrical cam fixed ring and is connected to the cylindrical cam moving ring. The cylindrical cam moving ring is connected to the rotary drive unit.

[0039] The rotary drive unit can drive the moving ring of the cylindrical cam to rotate. During the rotation of the moving ring of the cylindrical cam, the drive rod can move up and down within the vertical stroke through hole of the fixed ring of the cylindrical cam, thereby driving the swing lifting ring to move up and down.

[0040] In the aforementioned transfer needle assembly, the lower end of the cylindrical cam fixed ring is provided with an anti-displacement protrusion, and the cylindrical cam moving ring is axially limited by the anti-displacement protrusion and the transfer disk. A resistance-reducing structure is also provided between the transfer disk, the cylindrical cam fixed ring, the cylindrical cam moving ring and the anti-displacement protrusion.

[0041] The cylindrical cam moving ring is axially limited between the anti-displacement cam flange and the transfer disk. The drag-reducing structure between the transfer disk, the cylindrical cam stationary ring, the cylindrical cam moving ring and the anti-displacement cam flange can reduce the friction between the cylindrical cam moving ring and the transfer disk, the cylindrical cam stationary ring and the anti-displacement cam flange when the cylindrical cam moving ring rotates.

[0042] In the aforementioned transfer needle assembly, the resistance-reducing structure includes an upper annular ball groove disposed between the transfer disk, the cylindrical cam fixed ring, and the cylindrical cam moving ring; a lower annular ball groove disposed between the cylindrical cam fixed ring, the cylindrical cam moving ring, and the anti-displacement protrusion; and balls disposed in both the upper and lower annular ball grooves. An anti-contact gap is provided between the cylindrical cam moving ring and the cylindrical cam fixed ring, the transfer disk, and the anti-displacement protrusion.

[0043] The balls in the upper and lower annular ball grooves reduce the friction between the moving ring of the cylindrical cam and the transfer disk, the fixed ring of the cylindrical cam, and the anti-displacement convex edge when the moving ring of the cylindrical cam rotates. The anti-contact gap between the moving ring of the cylindrical cam and the fixed ring of the cylindrical cam, the transfer disk, and the anti-displacement convex edge prevents contact between the moving ring of the cylindrical cam and the fixed ring of the cylindrical cam, the transfer disk, and the anti-displacement convex edge, thereby reducing friction.

[0044] Compared with existing technologies, the advantages of this invention are: 1. High precision and strong stability during the radial movement of the horizontal needle body, reducing the likelihood of needle leakage, snagging, or needle slippage. 2. Stable fixing of the transfer needle and good driving stability of the rocker arm drive mechanism. 3. Low frictional force experienced by the rotating cylindrical cam coil. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the transfer needle;

[0046] Figure 2 This is a schematic diagram of the transfer needle assembly in Embodiment 1;

[0047] Figure 3 This is a schematic diagram of the structure where the horizontal needle body moves radially inward;

[0048] Figure 4 This is a schematic diagram of the structure where the horizontal needle body moves radially outward;

[0049] Figure 5 This is a schematic diagram of the bottom structure of the transfer needle assembly;

[0050] Figure 6 This is a schematic diagram of the side structure of the transfer needle assembly;

[0051] Figure 7 This is a schematic diagram of the moving coil of a cylindrical cam;

[0052] Figure 8 This is a schematic diagram of the transfer needle assembly in Embodiment 2;

[0053] Figure 9 This is a schematic diagram of the transfer needle in Example 3.

[0054] In the diagram, 1 is the horizontal needle body, 2 is the hook tongue, 3 is the radial force application part, 4 is the first flexible support structure, 5 is the substrate, 6 is the second flexible support structure, 7 is the L-shaped swing rod, 8 is the swing force-bearing structure, 9 is the hinge hole, 10 is the annular pin, 11 is the transfer plate, 12 is the first flexible hinge, 13 is the first connecting rod, 14 is the third flexible hinge, 15 is the second flexible hinge, 16 is the first protrusion, 17 is the second protrusion, 18 is the inclined reinforcement part, 19 is the lifting clearance slope, 20 is the hoop spring slot, 21 is the hoop spring, 22 is the hook body, 23 is the opening, 24 is the detachable substrate fixing structure, 25 is the swing rod drive mechanism, 26 is the substrate mounting groove, 27 is the hook groove, and 28 is the clamp. 28. Needle ring; 29. ​​Substrate slot; 30. Needle body movable clearance groove; 31. Needle body movable groove; 32. Swing lifting ring; 33. Lifting drive assembly; 34. Cylindrical cam fixed ring; 35. Cylindrical cam moving ring; 36. Drive rod; 37. Vertical stroke through hole; 38. Rotary drive unit; 39. Arc-shaped driven rack; 40. Drive rack; 41. Linear driver; 42. Drive gear; 43. Motor; 44. Arc-shaped groove; 45. Anti-displacement protrusion; 46. Resistance reduction structure; 47. Upper annular ball groove; 48. Lower annular ball groove; 49. Ball; 50. Anti-contact gap; 51. Clearance structure; 52. Forward clearance groove; 53. Deformation groove; 54. Detailed Implementation

[0055] Example 1

[0056] like Figures 1-4 As shown, a transfer needle includes a horizontal needle body 1 and a hook tongue 2 disposed at the front end of the horizontal needle body 1. A radial force-applying part 3 is also provided on the horizontal needle body 1. The horizontal needle body 1 is connected to a substrate 5 near the hook tongue 2 through a first flexible support structure 4. The rear end of the horizontal needle body 1 is connected to one end of an L-shaped swing rod 7 through a second flexible support structure 6. A swing force-receiving structure 8 is provided between the L-shaped swing rod 7 and the horizontal needle body 1. A hinge hole 9 is provided between the two ends of the L-shaped swing rod 7.

[0057] In this invention, the L-shaped swing arm 7 is hinged to the transfer disk 11 via an annular pin 10 passing through the hinge hole 9. When the L-shaped swing arm 7 rotates upward around the hinge hole 9, the horizontal needle body 1 can be driven to move radially outward through the swing force structure 8. The horizontal needle body 1 can be subjected to a radially inward force through the radial force application part 3, causing the horizontal needle body 1 to move radially inward. The L-shaped swing arm 7 is driven to rotate downward around the hinge hole 9 through the swing force structure 8. During the radial movement of the horizontal needle body 1, the hook tongue 2 at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation. The front end of the horizontal needle body 1 is connected to the base plate 5 through the first flexible support structure 4, and the rear end is connected to one end of the L-shaped swing arm 7 through the second flexible support structure 6. The first flexible support structure 4 and the second flexible support structure 6 play a flexible support role, which eliminates the idle stroke and mechanical friction in the transmission process during the radial movement of the horizontal needle body 1, and can obtain ultra-high displacement resolution, improving the accuracy and stability of the radial movement of the horizontal needle body 1.

[0058] Specifically, combining Figures 1-4 As shown, the first flexible support structure 4 includes a first flexible hinge 12 located near the hook tongue 2 of the horizontal needle body 1. One end of the first flexible hinge 12 is connected to the horizontal needle body 1, and the other end is connected to the substrate 5.

[0059] The horizontal needle body 1 is connected to the substrate 5 through the first flexible hinge 12. When the horizontal needle body 1 moves radially, the idle stroke and mechanical friction in the transmission process are eliminated, which improves the accuracy and stability of the radial movement.

[0060] Specifically, combining Figures 1-4 As shown, a first connecting rod 13 is provided between the first flexible hinge 12 and the substrate 5. The other end of the first flexible hinge 12 is connected to the lower end of the first connecting rod 13. A third flexible hinge 14 is provided between the first connecting rod 13 and the substrate 5. One end of the third flexible hinge 14 is connected to the upper end of the first connecting rod 13, and the other end of the third flexible hinge 14 is connected to the substrate 5.

[0061] The first connecting rod 13 is used to connect the horizontal needle body 1 and the substrate 5. The two ends of the first connecting rod 13 are connected to the horizontal needle body 1 and the substrate 5 respectively through the first flexible hinge 12 and the third flexible hinge 14. During the radial movement of the horizontal needle body 1, the idle stroke and mechanical friction can be eliminated, thereby improving the accuracy and stability of the radial movement of the horizontal needle body 1.

[0062] Specifically, combining Figures 1-4 As shown, the second flexible support structure 6 includes a second flexible hinge 15 disposed between one end of the L-shaped swing arm 7 and the rear end of the horizontal needle body 1.

[0063] The rear end of the horizontal needle body 1 is connected to the L-shaped swing arm 7 by a second flexible hinge 15. During the radial movement of the horizontal needle body 1, idle stroke and mechanical friction can be eliminated, thereby improving the accuracy and stability of the radial movement of the horizontal needle body 1.

[0064] Preferably, combined with Figure 1 As shown, the first flexible hinge 12, the third flexible hinge 14, and the second flexible hinge 15 are in a straight line.

[0065] Preferably, the first connecting rod 13 is provided with a hinge clearance groove at the connection end with the first flexible hinge 12 and the third flexible hinge 14. Similarly, the horizontal needle body 1, the base plate 5 and the L-shaped swing rod 7 are also provided with hinge clearance grooves.

[0066] Specifically, combining Figures 1-4 As shown, the swing force structure 8 includes a first protrusion 16 provided on the rear end of the horizontal needle body 1, and a second protrusion 17 provided at the lower end of the L-shaped swing rod 7. The side of the first protrusion 16 and the side of the second protrusion 17 abut against each other.

[0067] The first protrusion 16 on the rear end of the horizontal needle body 1 abuts against the second protrusion 17 on the lower end of the L-shaped rocker arm 7. When the L-shaped rocker arm 7 rotates upward around the hinge hole 9, it can drive the horizontal needle body 1 to move radially outward. When the horizontal needle body 1 moves radially inward, it can drive the L-shaped rocker arm 7 to rotate downward around the hinge hole 9.

[0068] Preferably, combined with Figure 9 As shown, a clearance structure 52 is provided between the side of the second protrusion 17 and the inner corner of the second protrusion 17. The clearance structure 52 includes a forward clearance groove 53 disposed between one side of the inner corner of the second protrusion 17 and the side of the second protrusion 17.

[0069] When the horizontal needle body 1 moves radially inward, the forward-moving clearance groove 53 makes way for the first protrusion 16.

[0070] Preferably, combined with Figure 1 As shown, an inclined reinforcing part 18 is provided between the second protrusion 17 and the L-shaped swing rod 7.

[0071] The inclined reinforcing part 18 between the second protrusion 17 and the L-shaped rocker arm 7 can increase the contact area between the second protrusion 17 and the first protrusion 16, thereby increasing the force.

[0072] Preferably, combined with Figures 1-4 As shown, the upper part of the L-shaped rocker arm 7 is provided with a lifting clearance slope 19 that gradually slopes downward from the front end to the rear end.

[0073] The lifting clearance slope 19 on the L-shaped rocker arm 7 plays a clearance role when the L-shaped rocker arm 7 rotates upward around the hinge hole 9, thus avoiding interference.

[0074] Specifically, combining Figures 1-4 As shown, the radial force-applying part 3 includes a spring retainer groove 20, which is located in the middle or rear of the horizontal needle body 1.

[0075] A spring 21 is provided in the spring groove 20, which can move the horizontal needle body 1 radially inward. The spring 21 can apply a radially inward force to the horizontal needle body 1.

[0076] Specifically, combining Figures 1-4 As shown, the substrate 5 is provided with a hook 22.

[0077] The hook 22 on the substrate 5 facilitates the assembly of the substrate 5.

[0078] Specifically, combining Figures 1-4 As shown, one end of the hinge hole 9 has an opening 23, and the minimum diameter of the inner end of the opening 23 is smaller than the diameter of the hinge hole 9.

[0079] The hinge hole 9 has an opening 23 at one end, which can reduce the friction when the L-shaped rocker arm 7 rotates.

[0080] Preferably, combined with Figure 9 As shown, the L-shaped rocker arm 7 also has a deformation groove 54 that communicates with the hinge hole 9.

[0081] The deformation groove 54 can deform to avoid excessive stress on the hinge hole 9.

[0082] like Figures 1-6 As shown, a transfer needle assembly includes a transfer disk 11, with a plurality of transfer needles distributed along the circumferential direction below the transfer disk 11. A substrate 5 is connected to the transfer disk 11 via a detachable substrate fixing structure 24. An L-shaped rocker arm 7 is connected to the transfer disk 11 via an annular pin 10 passing through a hinge hole 9. At the other end of the L-shaped rocker arm 7, a rocker arm drive mechanism 25 is connected to drive the rocker arm 7 to rotate upward around the hinge hole 9, thereby causing the horizontal needle body 1 to move radially outward. A hoop spring 21 is provided on the radial force application part 3, which can cause the horizontal needle body 1 to return to its radial inward position after the rocker arm drive mechanism 25 returns to its original position.

[0083] In this invention, the substrate 5 and the transfer disk 11 are connected by a detachable substrate fixing structure 24, which is convenient to assemble and disassemble and has a stable connection. The L-shaped swing rod 7 is hinged to the transfer disk 11 through an annular pin 10 passing through the hinge hole 9. The swing rod driving mechanism 25 can drive it to rotate upward around the hinge hole 9, thereby causing the horizontal needle body 1 to move radially outward. When the swing rod driving mechanism 25 is reset, the hoop spring 21 on the radial force application part 3 can cause the horizontal needle body 1 to return to radial inward. During the radial movement of the horizontal needle body 1, the hook tongue 2 at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation.

[0084] Specifically, combining Figures 1-4As shown, the detachable substrate fixing structure 24 includes a substrate mounting groove 26 that vertically penetrates the transfer disk 11. A hook groove 27 is provided in the substrate mounting groove 26. The substrate 5 is provided with hooks 22 that can engage with the hook groove 27. All hooks 22 are fixed by clamps 28.

[0085] The hook 22 on the substrate 5 engages with the hook groove 27 in the substrate mounting groove 26, ensuring that the substrate 5 is securely fixed and easy to install and remove.

[0086] Specifically, combining Figures 2-6 As shown, a needle ring 29 is provided on the inner side of the transfer disk 11. A substrate slot 30 that mates with the front end of the substrate 5 is provided on the inner wall of the needle ring 29. A needle body movable clearance groove 31 is also provided on the inner wall of the needle ring 29. A needle body movable groove 32 is provided on the lower end of the needle ring 29.

[0087] The substrate slot 30 on the inner wall of the needle ring 29 cooperates with the front end of the substrate 5 to strengthen the fixation of the substrate 5. The needle body movable clearance slot 31 on the inner wall of the needle ring 29 plays a clearance role during the movement of the first connecting rod 13. The needle body movable slot 32 at the lower end of the needle ring 29 plays a clearance role when the horizontal needle body 1 moves radially.

[0088] Specifically, combining Figures 2-5 As shown, the rocker arm drive mechanism 25 includes a swing lifting ring 33 disposed below the other end of the L-shaped rocker arm 7, and the swing lifting ring 33 is connected to the lifting drive assembly 34.

[0089] The lifting drive assembly 34 can drive the swing lifting ring 33 to move up and down. When the swing lifting ring 33 rises, it abuts against the other end of the L-shaped swing rod 7, causing the L-shaped swing rod 7 to rotate upward around the hinge hole 9. It also drives the horizontal needle body 1 to move radially outward through the swing force structure 8. When the swing lifting ring 33 falls, the hoop spring 21 on the radial force application part 3 can make the horizontal needle body 1 return to its radial inward position. During the radial movement of the horizontal needle body 1, the hook tongue 2 at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation.

[0090] Specifically, combining Figures 2-5 As shown, the lifting drive assembly 34 includes a cylindrical cam fixed ring 35 disposed outside the swing lifting ring 33. The cylindrical cam fixed ring 35 is fixedly connected to the transfer disk 11. A cylindrical cam moving ring 36 is sleeved on the cylindrical cam fixed ring 35 and rotates circumferentially connected to it. There are several drive rods 37 distributed along the circumferential direction between the swing lifting ring 33 and the cylindrical cam moving ring 36. The inner end of the drive rod 37 is fixedly connected to the swing lifting ring 33. The outer end of the drive rod 37 passes through the vertical stroke through hole 38 of the cylindrical cam fixed ring 35 and is connected to the cylindrical cam moving ring 36. The cylindrical cam moving ring 36 is connected to the rotary drive unit 39.

[0091] The rotary drive unit 39 can drive the cylindrical cam moving ring 36 to rotate. During the rotation of the cylindrical cam moving ring 36, the drive rod 37 can move up and down in the vertical stroke through hole 38 of the cylindrical cam fixed ring 35, thereby driving the swing lifting ring 33 to move up and down.

[0092] Specifically, combining Figures 2-7 As shown, the cylindrical cam moving ring 36 is provided with an arc-shaped groove 45 that passes through the cylindrical cam moving ring 36, and one side of the arc-shaped groove 45 is higher than the other side, and the outer end of the drive rod 37 is set in the arc-shaped groove 45.

[0093] During the rotation of the cylindrical cam moving coil 36, the outer end of the drive rod 37 moves along the guide of the arc groove 45, thereby realizing the up and down movement of the drive rod 37 within the vertical stroke through hole 38.

[0094] Specifically, combining Figures 2-7 As shown, the rotary drive unit 39 includes an arc-shaped driven rack 40 fixed on the outer wall of the cylindrical cam moving coil 36. The arc-shaped driven rack 40 is connected to the driving rack 41, and the driving rack 41 is connected to the linear driver 42.

[0095] The linear actuator 42 drives the active rack 41 to reciprocate linearly, thereby driving the arc-shaped driven rack 40 to reciprocate and rotate, which in turn drives the cylindrical cam moving coil 36 to reciprocate.

[0096] Specifically, combining Figures 2-4 As shown, the lower end of the cylindrical cam fixed ring 35 is provided with an anti-displacement protrusion 46, and the cylindrical cam moving ring 36 is axially limited by the anti-displacement protrusion 46 and the transfer disk 11. A drag-reducing structure 47 is also provided between the transfer disk 11, the cylindrical cam fixed ring 35, the cylindrical cam moving ring 36 and the anti-displacement protrusion 46.

[0097] The cylindrical cam moving ring 36 is axially limited between the anti-displacement cam 46 and the transfer disk 11. The drag-reducing structure 47 between the transfer disk 11, the cylindrical cam fixed ring 35, the cylindrical cam moving ring 36 and the anti-displacement cam 46 can reduce the friction between the cylindrical cam moving ring 36 and the transfer disk 11, the cylindrical cam fixed ring 35 and the anti-displacement cam 46 when the cylindrical cam moving ring 36 rotates.

[0098] Specifically, combining Figures 2-4 As shown, the drag-reducing structure 47 includes an upper annular ball groove 48 disposed between the transfer disk 11, the cylindrical cam fixed ring 35, and the cylindrical cam moving ring 36; a lower annular ball groove 49 disposed between the cylindrical cam fixed ring 35, the cylindrical cam moving ring 36, and the anti-displacement protrusion 46; balls 50 are disposed in both the upper annular ball groove 48 and the lower annular ball groove 49; and an anti-contact gap 51 is provided between the cylindrical cam moving ring 36 and the cylindrical cam fixed ring 35, the transfer disk 11, and the anti-displacement protrusion 46.

[0099] The balls 50 in the upper annular ball groove 48 and the lower annular ball groove 49 can reduce the friction between the moving ring 36 of the cylindrical cam and the transfer disk 11, the fixed ring 35 of the cylindrical cam and the anti-displacement protrusion 46 when the moving ring 36 of the cylindrical cam rotates. The anti-contact gap 51 between the moving ring 36 of the cylindrical cam and the fixed ring 35 of the cylindrical cam, the transfer disk 11 and the anti-displacement protrusion 46 can prevent the moving ring 36 of the cylindrical cam and the fixed ring 35 of the cylindrical cam, the transfer disk 11 and the anti-displacement protrusion 46 from contacting each other, thereby reducing the friction.

[0100] The working principle of this invention is as follows: The L-shaped swing rod 7 is hinged to the transfer plate 11 through the annular pin 10 passing through the hinge hole 9. The lifting drive assembly 34 can drive the swing lifting ring 33 to move up and down. When the swing lifting ring 33 rises, it abuts against the other end of the L-shaped swing rod 7, thereby causing the L-shaped swing rod 7 to rotate upward around the hinge hole 9. The horizontal needle body 1 is driven to move radially outward through the swing force structure 8. When the swing lifting ring 33 falls, the hoop spring 21 on the radial force application part 3 can make the horizontal needle body 1 return to its radial inward position. During the radial movement of the horizontal needle body 1, the hook tongue 2 at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation.

[0101] The first protrusion 16 on the rear end of the horizontal needle body 1 abuts against the second protrusion 17 on the lower end of the L-shaped swing rod 7. When the L-shaped swing rod 7 rotates upward around the hinge hole 9, it can drive the horizontal needle body 1 to move radially outward. When the horizontal needle body 1 moves radially inward, it can drive the L-shaped swing rod 7 to rotate downward around the hinge hole 9.

[0102] The rotary drive unit 39 can drive the cylindrical cam moving ring 36 to rotate. During the rotation of the cylindrical cam moving ring 36, the drive rod 37 can move up and down in the vertical stroke through hole 38 of the cylindrical cam fixed ring 35, thereby driving the swing lifting ring 33 to move up and down.

[0103] During the rotation of the cylindrical cam moving coil 36, the outer end of the drive rod 37 moves along the guide of the arc groove 45, thereby realizing the up and down movement of the drive rod 37 within the vertical stroke through hole 38;

[0104] The linear actuator 42 drives the active rack 41 to reciprocate linearly, thereby driving the arc-shaped driven rack 40 to reciprocate and rotate, which in turn drives the cylindrical cam moving coil 36 to reciprocate.

[0105] Example 2

[0106] like Figure 8 As shown, the structure and working principle of this embodiment are basically the same as those of Embodiment 1. The difference is that the rotary drive unit 39 includes an arc-shaped driven rack 40 fixed on the outer wall of the cylindrical cam moving ring 36. The arc-shaped driven rack 40 is connected to the driving gear 43, and the driving gear 43 is connected to the motor 44.

[0107] The motor 44 drives the drive gear 43 to rotate, which in turn drives the arc-shaped driven rack 40 to rotate, causing the cylindrical cam moving coil 36 to rotate.

[0108] Example 3

[0109] like Figure 9 As shown, the structure and working principle of this embodiment are basically the same as those of Embodiment 1. The difference is that the first flexible hinge 12, the third flexible hinge 14 and the second flexible hinge 15 are S-shaped.

[0110] The first flexible hinge 12, the third flexible hinge 14, and the second flexible hinge 15 are S-shaped, which can increase the amount of flexible variation.

[0111] 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.

[0112] Although this paper extensively uses the following components: horizontal needle body 1, hook tongue 2, radial force application part 3, first flexible support structure 4, substrate 5, second flexible support structure 6, L-shaped swing rod 7, swing force-bearing structure 8, hinge hole 9, annular pin ring 10, transfer plate 11, first flexible hinge 12, first connecting rod 13, third flexible hinge 14, second flexible hinge 15, first protrusion 16, second protrusion 17, inclined reinforcement part 18, lifting clearance slope 19, clamp spring slot 20, clamp spring 21, hook body 22, opening 23, detachable substrate fixing structure 24, swing rod drive mechanism 25, substrate mounting groove 26, hook groove 27, clamp 28, needle ring 29, substrate slot 30, needle body movable clearance groove 31 The following components are used: needle body movable groove 32, swing lifting ring 33, lifting drive assembly 34, cylindrical cam fixed ring 35, cylindrical cam moving ring 36, drive rod 37, vertical stroke through hole 38, rotary drive unit 39, arc-shaped driven rack 40, driving rack 41, linear driver 42, driving gear 43, motor 44, arc-shaped groove 45, anti-displacement protrusion 46, resistance reduction structure 47, upper annular ball groove 48, lower annular ball groove 49, ball 50, anti-contact gap 51, clearance structure 52, forward clearance groove 53, deformation groove 54, 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 needle, comprising a horizontal needle body (1) and a hook tongue (2) disposed at the front end of the horizontal needle body (1), wherein a radial force-applying part (3) is further provided on the horizontal needle body (1), characterized in that, The horizontal needle body (1) is connected to the substrate (5) near the hook tongue (2) through the first flexible support structure (4). The rear end of the horizontal needle body (1) is connected to one end of the L-shaped swing rod (7) through the second flexible support structure (6). A swing force-bearing structure (8) is provided between the L-shaped swing rod (7) and the horizontal needle body (1). A hinge hole (9) is provided between the two ends of the L-shaped swing rod (7). The first flexible support structure (4) includes a first flexible hinge (12) located near the hook tongue (2) of the horizontal needle body (1). One end of the first flexible hinge (12) is connected to the horizontal needle body (1), and the other end is connected to the substrate (5). The first flexible hinge (12) is connected to the substrate (5) by a first connecting rod (13), and the other end of the first flexible hinge (12) is connected to the lower end of the first connecting rod (13). A third flexible hinge (14) is provided between the first connecting rod (13) and the substrate (5). One end of the third flexible hinge (14) is connected to the upper end of the first connecting rod (13), and the other end of the third flexible hinge (14) is connected to the substrate (5). The second flexible support structure (6) includes a second flexible hinge (15) disposed between one end of the L-shaped swing arm (7) and the rear end of the horizontal needle body (1).

2. The transfer needle according to claim 1, characterized in that, The first flexible hinge (12), the third flexible hinge (14), and the second flexible hinge (15) are either straight or non-straight. Alternatively, the first flexible hinge (12), the third flexible hinge (14), and the second flexible hinge (15) may be S-shaped or Z-shaped.

3. The transfer needle according to claim 1 or 2, characterized in that, The swing force structure (8) includes a first protrusion (16) on the rear end of the horizontal needle body (1), and a second protrusion (17) at the lower end of the L-shaped swing rod (7). The side of the first protrusion (16) and the side of the second protrusion (17) abut against each other.

4. The transfer needle according to claim 3, characterized in that, A clearance structure (52) is provided between the side of the second protrusion (17) and the upper inner corner of the second protrusion (17).

5. The transfer needle according to claim 3, characterized in that, An inclined reinforcing part (18) is provided between the second protrusion (17) and the L-shaped rocker arm (7).

6. The transfer needle according to claim 1 or 2, characterized in that, The upper part of the L-shaped swing arm (7) is provided with a lifting clearance slope (19) that gradually slopes downward from the front end to the rear end.

7. The transfer needle according to claim 1 or 2, characterized in that, The radial force application part (3) includes a spring retainer groove (20), which is located in the middle or rear of the horizontal needle body (1).

8. The transfer needle according to claim 1 or 2, characterized in that, The substrate (5) is provided with a hook (22).

9. The transfer needle according to claim 1 or 2, characterized in that, The hinge hole (9) has an opening (23) at one end, and the minimum diameter of the inner end of the opening (23) is smaller than the diameter of the hinge hole (9).

10. A transfer needle assembly, comprising a transfer tray (11), characterized in that, The transfer disk (11) is provided with a plurality of transfer needles as described in any one of claims 1-8 distributed along the circumferential direction below it. The substrate (5) is connected to the transfer disk (11) through a detachable substrate fixing structure (24). The L-shaped rocker arm (7) is connected to the transfer disk (11) through an annular pin (10) passing through the hinge hole (9). The other end of the L-shaped rocker arm (7) is connected to a rocker arm drive mechanism (25) that can drive it to rotate upward around the hinge hole (9) so that the horizontal needle body (1) moves radially outward. The radial force application part (3) is provided with a hoop spring (21) that can reset the horizontal needle body (1) radially inward after the rocker arm drive mechanism (25) is reset.

11. The transfer needle assembly according to claim 10, characterized in that, The detachable substrate fixing structure (24) includes a substrate mounting groove (26) that vertically penetrates the transfer disk (11), and a hook groove (27) is provided in the substrate mounting groove (26). The substrate (5) is provided with hooks (22) that can cooperate with the hook groove (27), and all hooks (22) are fixed by clamps (28).

12. The transfer needle assembly according to claim 11, characterized in that, The transfer disk (11) is provided with a needle ring (29) on the inner side. The inner wall of the needle ring (29) is provided with a substrate slot (30) that cooperates with the front end of the substrate (5). The inner wall of the needle ring (29) is also provided with a needle body movement clearance groove (31). The lower end of the needle ring (29) is provided with a needle body movement groove (32).

13. The transfer needle assembly according to claim 10, characterized in that, The swing arm drive mechanism (25) includes a swing lifting ring (33) located below the other end of the L-shaped swing arm (7), and the swing lifting ring (33) is connected to the lifting drive assembly (34).

14. The transfer needle assembly according to claim 13, characterized in that, The lifting drive assembly (34) includes a cylindrical cam fixed ring (35) disposed outside the swing lifting ring (33), the cylindrical cam fixed ring (35) being fixedly connected to the transfer disk (11), and a cylindrical cam moving ring (36) being sleeved on the cylindrical cam fixed ring (35) and circumferentially connected to it. There are several drive rods (37) distributed along the circumferential direction between the swing lifting ring (33) and the cylindrical cam moving ring (36). The inner end of the drive rod (37) is fixedly connected to the swing lifting ring (33), and the outer end of the drive rod (37) passes through the vertical stroke through hole (38) of the cylindrical cam fixed ring (35) and is connected to the cylindrical cam moving ring (36). The cylindrical cam moving ring (36) is connected to the rotary drive unit (39).

15. The transfer needle assembly according to claim 14, characterized in that, The lower end of the cylindrical cam fixed ring (35) is provided with an anti-displacement protrusion (46), and the cylindrical cam moving ring (36) is axially limited by the anti-displacement protrusion (46) and the transfer disk (11). A drag-reducing structure (47) is also provided between the transfer disk (11), the cylindrical cam fixed ring (35), the cylindrical cam moving ring (36) and the anti-displacement protrusion (46).

16. The transfer needle assembly according to claim 15, characterized in that, The drag-reducing structure (47) includes an upper annular ball groove (48) between the transfer disk (11), the cylindrical cam fixed ring (35), and the cylindrical cam moving ring (36), a lower annular ball groove (49) between the cylindrical cam fixed ring (35), the cylindrical cam moving ring (36), and the anti-displacement protrusion (46), and balls (50) are provided in both the upper annular ball groove (48) and the lower annular ball groove (49). An anti-contact gap (51) is provided between the cylindrical cam moving ring (36) and the cylindrical cam fixed ring (35), the transfer disk (11), and the anti-displacement protrusion (46).

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