Improved transfer device and transfer needle driving mechanism

Abstract

The utility model provides an improved transfer device and a transfer needle driving mechanism, and belongs to the technical field of knitting machinery. The device comprises an annular seat arranged on the transfer disc, at least three radial push plates distributed in the circumferential direction are arranged on the annular seat, the radial push plates can act on a stress plate to push the suspension type transfer needles to move outwards in the radial direction when moving outwards, and radial movement guide assemblies are arranged between the radial push plates and the annular seat. The ends of every two adjacent radial push plates in the circumferential direction are overlapped, strip-shaped holes extending in the circumferential direction are formed in the ends, at the overlapped positions, of the radial push plates, eccentric bodies of eccentric gears are arranged in the strip-shaped holes, the tops of the eccentric gears are movably connected with the annular cover plate, and the eccentric gears are connected with an eccentric wheel driving assembly. And an anti-jamming structure is arranged between the eccentric gear and the annular cover plate as well as the radial push plate. The anti-jamming structure can avoid direct contact friction between the eccentric gear and the annular cover plate and between the eccentric gear and the radial push plate, meanwhile, the radial deviation of the eccentric gear is limited, and jamming of the eccentric gear during rotation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to knitting machine technical field relates to an improved transfer device and transfer needle drive mechanism. BACKGROUND

[0002] The transfer device includes a transfer needle arranged on the transfer disc body, which moves radially along the transfer disc body under the drive of the drive mechanism and cooperates with the vertical knitting needle of the hosiery machine to perform the transfer operation of the hosiery thread. The existing transfer needle drive mechanism, such as a new type of transfer device disclosed in Chinese patent [application number: 202510177671.3], the eccentric gear in the transfer device cooperates with the strip-shaped hole of the radial push plate through the eccentric shaft to drive the radial push plate to move radially to control the action of the transfer needle. However, since the eccentric gear needs to bear the friction force from the push plate and the axial pressure of the ring-shaped cover plate at the same time when rotating, the friction between the eccentric gear and the push plate and the cover plate directly contacted will cause the wear and jamming of the tooth surface of the eccentric gear, in addition, the eccentric gear lacks stability in installation and is prone to radial deviation when rotating, which aggravates the friction and jamming. SUMMARY

[0003] The utility model aims at the above -mentioned problem, provides a kind of transfer needle drive mechanism of improved transfer device.

[0004] Another object of the utility model is to provide an improved transfer device.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A transfer needle drive mechanism of improved transfer device, including the ring-shaped seat being arranged on the transfer disc, at least three radial push plates distributed along the circumference are provided on the ring-shaped seat, and the radial push plate can act on the force plate to push the radial outward movement of the suspension type transfer needle when moving outward, the radial push plate and the ring-shaped seat are provided with a radial movement guide assembly, the end portions of the two radial push plates adjacent in the circumferential direction are overlapped with each other, the end portions of the radial push plates at the overlapping positions are each provided with a strip-shaped hole extending along the circumference, the eccentric body of the eccentric gear is arranged in the strip-shaped hole, the top of the eccentric gear is movably connected with the ring-shaped cover plate, the eccentric gear is connected with the eccentric wheel drive assembly, and the anti-jamming structure is arranged between the eccentric gear and the ring-shaped cover plate and the radial push plate.

[0007] The anti-jamming structure can avoid the direct contact and friction between the eccentric gear and the ring-shaped cover plate and the radial push plate, limit the radial deviation of the eccentric gear, ensure the smoothness of the rotation of the eccentric gear, and effectively prevent the jamming of the eccentric gear when rotating.

[0008] The anti-jamming structure comprises a sub-wheel body arranged at the lower end of the main wheel body of the eccentric gear, the main wheel body has a diameter larger than that of the sub-wheel body and is arranged concentrically, the sub-wheel body is provided with the eccentric body at a position deviated from the rotation center, the eccentric gear and the radial push plate at the top are provided with a fixedly arranged eccentric gear mounting ring, and the sub-wheel body passes through a sub-wheel body mounting through hole of the eccentric gear mounting ring.

[0009] The sub-wheel body passes through the sub-wheel body mounting through hole of the eccentric gear mounting ring and is rotationally connected therewith, the sub-wheel body mounting through hole can limit the radial displacement of the sub-wheel body to ensure the smooth rotation of the eccentric gear, and the main wheel body and the radial push plate are not in direct contact and friction, so that the eccentric gear can be effectively prevented from being jammed during rotation.

[0010] In the improved transfer needle driving mechanism of the transfer device, the eccentric gear comprises a main wheel body and external teeth, the upper end of the main wheel body is provided with a central shaft, the central shaft passes through the annular cover plate and is rotationally connected therewith, and the two end faces of the main wheel body are respectively provided with a gap adjusting structure capable of reducing the friction between the external teeth and the radial push plate and the annular cover plate.

[0011] The gap adjusting structure on the two end faces of the main wheel body can reduce the friction generated by the direct contact between the external teeth and the radial push plate and the annular cover plate, effectively reduce the friction force suffered by the main wheel body and the external teeth during rotation, and avoid the jamming of the main wheel body during rotation.

[0012] In the improved transfer needle driving mechanism of the transfer device, the gap adjusting structure comprises wear-reducing gap adjusting gaskets respectively arranged on the two end faces of the main wheel body.

[0013] Alternatively, the gap adjusting structure comprises bearings respectively arranged on the two end faces of the main wheel body.

[0014] The wear-reducing gap adjusting gaskets on the two end faces of the main wheel body can increase the gap between the external teeth and the radial push plate and the annular cover plate, reduce the hard contact between the external teeth and the radial push plate and the annular cover plate, effectively reduce the friction force suffered by the main wheel body and the external teeth during rotation, and avoid the jamming of the eccentric gear during rotation. If bearings are used, the sliding friction can be further converted into rolling friction, and the resistance can be significantly reduced.

[0015] In the improved transfer needle driving mechanism of the transfer device, the maximum outer diameter of the gap adjusting structure is not greater than the diameter of the dedendum circle of the eccentric gear.

[0016] The maximum outer diameter of the gap adjusting structure is not greater than the diameter of the dedendum circle of the eccentric gear, so as to ensure that the gear meshing is not disturbed.

[0017] In the transfer needle driving mechanism of the improved transfer device, the end of each two circumferentially adjacent radial push plates is respectively provided with an upper displacement step and a lower displacement step which are matched with each other, and the upper displacement step and the lower displacement step are provided with the strip-shaped hole.

[0018] Each radial push plate is provided with a downwardly protruding side push plate on the outer side, and the end of each two circumferentially adjacent side push plates is respectively provided with an upper side push displacement step and a lower side push displacement step which are matched with each other.

[0019] Through the cooperation of the upper displacement step and the lower displacement step and the cooperation of the upper side push displacement step and the lower side push displacement step, the top and the bottom of the radial push plate are located on the same plane.

[0020] In the transfer needle driving mechanism of the improved transfer device, the eccentric gear mounting ring is provided with at least two positioning ears, the positioning ears are sleeved on the positioning column of the transfer disc, and the annular cover plate is covered on the eccentric gear mounting ring and fixed on the positioning column.

[0021] The eccentric gear mounting ring provides a stable mounting base for the eccentric gear, the eccentric gear mounting ring is fixed on the transfer disc through the positioning ears and the positioning column, and the annular cover plate is covered on the eccentric gear mounting ring and also fixed on the positioning column.

[0022] In the transfer needle driving mechanism of the improved transfer device, the eccentric wheel driving assembly includes a driving ring with internal teeth, the thickness of the driving ring is adapted to the thickness of the main wheel body, and an active gap is left between the eccentric gear mounting ring and the top radial push plate.

[0023] Alternatively, the eccentric gear mounting ring is frictionally connected with the top radial push plate.

[0024] The internal teeth of the driving ring are meshed with the external teeth of the eccentric gear, and when the driving ring rotates, the main wheel body can be driven to rotate, thereby driving the radial push plate to move radially.

[0025] In the transfer needle driving mechanism of the improved transfer device, the anti-jamming structure includes wear-reducing gap adjusting gaskets arranged between the two ends of the main wheel body and the annular cover plate and the radial push plate.

[0026] The wear-reducing gap adjusting gaskets on the two end faces of the main wheel body can increase the gap between the main wheel body and the radial push plate and the annular cover plate, avoid the hard contact between the main wheel body and the radial push plate and the annular cover plate, effectively reduce the friction force received by the main wheel body when rotating, and avoid the jamming of the eccentric gear when rotating.

[0027] An improved transfer device comprises a transfer disc, the bottom of which is provided with a plurality of radially movable and circumferentially uniformly distributed suspension type transfer needles, the suspension type transfer needle comprises a needle body and a hook tongue arranged at the front end of the needle body, a return force applying part is arranged at the rear end of the needle body, a needle seat for suspension and capable of limiting the needle body to only move horizontally along the axial direction is arranged at the top of the needle body, the needle seat and the needle body are connected through at least two mortise and tenon structures, the positions of the mortise and tenon structures are spaced along the axial direction of the needle body, so that the needle body is suspended and connected to the needle seat, a sliding groove in sliding cooperation with the needle seat is arranged at the bottom of the transfer disc, the rear end of the needle body is provided with a force receiving plate, and the force receiving plate is connected with the transfer needle driving mechanism of the improved transfer device.

[0028] The needle seat can limit the needle body to only move horizontally along the axial direction, can ensure that the needle body does not deviate in other positions during movement along the axial direction, so as to realize precision control, facilitate accurate control of the position of the needle body, ensure accurate operation, reduce the complexity of operation, reduce the risk of error, and guarantee the quality and efficiency of the sock thread transfer operation.

[0029] Compared with the prior art, the anti-jamming structure can avoid direct contact and friction between the eccentric gear and the annular cover plate and the radial push plate, and limit the radial deviation of the eccentric gear, so as to ensure the smoothness of the rotation of the eccentric gear and effectively avoid jamming of the eccentric gear during rotation. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0031] Figure 2 is a schematic diagram of the installation of the eccentric gear;

[0032] Figure 3 is a schematic diagram of the structure of the anti-jamming structure;

[0033] Figure 4 is a schematic diagram of the structure of the anti-jamming structure;

[0034] Figure 5 is a schematic diagram of the structure of the eccentric gear;

[0035] Figure 6 is a schematic diagram of the structure of the radial push plate;

[0036] Figure 7 is a schematic diagram of the structure of the positioning disc;

[0037] Figure 8 is a schematic diagram of the structure of the transfer disc;

[0038] Figure 9 is a schematic diagram of the structure of the suspension type transfer needle;

[0039] Figure 10 is a schematic view of the structure of the needle body;

[0040] Figure 11 is a schematic view of the structure of the needle seat.

[0041] In the figure, the transfer disc 1, the annular seat 2, the radial push plate 3, the stress plate 4, the suspended transfer needle 5, the radial movement guide assembly 6, the strip hole 7, the eccentric gear 8, the eccentric body 9, the annular cover plate 10, the eccentric wheel driving assembly 11, the anti-jamming structure 12, the main wheel body 13, the auxiliary wheel body 14, the eccentric gear mounting ring 15, the auxiliary wheel body mounting through hole 16, the external teeth 17, the center shaft 18, the gap adjusting structure 19, the wear-reducing gap adjusting gasket 20, the positioning lug 23, the positioning column 24, the driving ring 25, the driving connecting lug 27, the tooth ring rotary driver 28, the positioning disc 29, the mounting step 30, the inner step 31, the needle body 32, the hook tongue 33, the return force applying part 34, the needle seat 35, the mortise and tenon structure 36, the sliding groove 37, the transfer needle driving mechanism 38, the front lug 41, the rear lug 42, the front lug through hole 43, the rear lug through hole 44, the front tenon groove 45, the rear tenon groove 46, the guide slope structure 47, the give-way slot 49, the return force applying half hole 50, the tension spring 51, the needle body anti-shaking groove 53, the stroke avoiding strip groove 54, the radial strip groove 56, the positioning pin 57, the upper give-way step 58, the lower give-way step 59, the side push plate 60, the upper side push give-way step 61, the lower side push give-way step 62, the bolt 63. DETAILED DESCRIPTION

[0042] Example One

[0043] As shown in Figures 1-5 , a transfer needle driving mechanism of an improved transfer device, comprising an annular seat 2 arranged on a transfer disc 1, the annular seat 2 is provided with at least three radial push plates 3 distributed circumferentially, and the radial push plates 3 can act on the stress plate 4 to push the suspended transfer needle 5 to move radially outward when the radial push plates 3 move outward, the radial push plates 3 and the annular seat 2 are provided with a radial movement guide assembly 6, the end portions of circumferentially adjacent two radial push plates 3 are overlapped with each other, the end portions of the overlapped radial push plates 3 are provided with strip holes 7 extending circumferentially, the eccentric body 9 of the eccentric gear 8 is arranged in the strip holes 7, the top portion of the eccentric gear 8 is movably connected with the annular cover plate 10, the eccentric gear 8 is connected with the eccentric wheel driving assembly 11, and the anti-jamming structure 12 is arranged between the eccentric gear 8 and the annular cover plate 10 and the radial push plates 3.

[0044] The eccentric wheel driving assembly 11 can drive the eccentric gear 8 to rotate, the eccentric body 9 of the eccentric gear 8 acts on the strip-shaped hole 7 of the radial push plate 3 to drive the radial push plate 3 to move radially along the transfer disc 1 when the eccentric gear 8 rotates, the radial push plate 3 can act on the stress plate 4 of the suspension type transfer needle 5 to push the suspension type transfer needle 5 to move radially outward along the transfer disc 1, and the suspension type transfer needle 5 moves radially along the transfer disc 1 and cooperates with the vertical knitting needle of the hosiery machine to perform the operation of transferring the hosiery thread.

[0045] The anti-jamming structure 12 between the eccentric gear 8, the annular cover plate 10 and the radial push plate 3 can avoid direct contact and friction between the eccentric gear 8, the annular cover plate 10 and the radial push plate 3, and limit the radial deviation of the eccentric gear 8, so that the smoothness of the rotation of the eccentric gear 8 is ensured, and the jamming of the eccentric gear 8 during rotation can be effectively avoided.

[0046] The radial push plate 3 can uniformly act on the stress plate 4 of each suspension type transfer needle 5, so that each suspension type transfer needle 5 is uniformly stressed, each suspension type transfer needle 5 can move radially outward at a uniform speed and stably, and the driving precision is poor and the driving stability is good.

[0047] The radial movement guiding assembly 6 plays a role in radial movement guiding during the radial movement of the radial push plate 3 along the transfer disc 1, ensures that the movement position of the radial push plate 3 will not deviate, and enables the radial push plate 3 to uniformly act on the stress plate 4 of each suspension type transfer needle 5, so that the precision control is realized, the position of the suspension type transfer needle 5 is accurately controlled, and the operation is accurate and correct.

[0048] Specifically, as shown in Figures 1-4 , the radial movement guiding assembly 6 comprises a radial strip-shaped groove 56 arranged on the radial push plate 3, and a positioning pin 57 fixed on the annular seat 2 is arranged in the radial strip-shaped groove 56.

[0049] The positioning pin 57 on the annular seat 2 is arranged in the radial strip-shaped groove 56, and the positioning pin 57 and the radial strip-shaped groove 56 are matched to play a role in radial movement guiding of the radial push plate 3 during the radial movement of the radial push plate 3 along the transfer disc 1, so that the movement position of the radial push plate 3 will not deviate, and the movement precision of the radial push plate 3 is ensured.

[0050] Specifically, as shown in Figures 2-5 , the anti-jamming structure 12 comprises a secondary wheel body 14 arranged at the lower end of the main wheel body 13 of the eccentric gear 8, the main wheel body 13 has a diameter larger than that of the secondary wheel body 14 and is arranged concentrically, the secondary wheel body 14 is provided with the eccentric body 9 at a position deviating from the rotation center, an eccentric gear mounting ring 15 is arranged fixedly between the eccentric gear 8 and the radial push plate 3 at the top, and the secondary wheel body 14 penetrates a secondary wheel body mounting through hole 16 of the eccentric gear mounting ring 15.

[0051] The main wheel body 13 is responsible for transmitting driving force, and the secondary wheel body 14 drives the radial push plate 3 through the eccentric body 9 and shares the load of the main wheel body 13. The secondary wheel body 14 is rotatably connected with the eccentric gear mounting ring 15 through the secondary wheel body mounting through hole 16 of the eccentric gear mounting ring 15. The secondary wheel body mounting through hole 16 can limit the radial displacement of the secondary wheel body 14, so as to ensure the smooth rotation of the eccentric gear 8. There is no direct contact and friction between the main wheel body 13 and the radial push plate 3, which can effectively avoid the jamming of the eccentric gear 8 during rotation.

[0052] Specifically, as shown in Figures 2-5 The eccentric gear 8 includes the main wheel body 13 and the external teeth 17. The upper end of the main wheel body 13 is provided with the central shaft 18, which is rotatably connected with the annular cover plate 10. The two end faces of the main wheel body 13 are respectively provided with the gap adjusting structures 19, which can reduce the friction between the external teeth 17 and the radial push plate 3 and the annular cover plate 10.

[0053] The gap adjusting structures 19 on the two end faces of the main wheel body 13 can reduce the friction generated by the direct contact between the external teeth 17 and the radial push plate 3 and the annular cover plate 10, effectively reduce the friction force suffered by the main wheel body 13 and the external teeth 17 during rotation, and avoid the jamming of the main wheel body 13 during rotation.

[0054] Specifically, as shown in Figures 2-5 The gap adjusting structures 19 include the wear-reducing gap adjusting gaskets 20 respectively arranged on the two end faces of the main wheel body 13.

[0055] Alternatively, the gap adjusting structures 19 include bearings respectively arranged on the two end faces of the main wheel body 13.

[0056] The wear-reducing gap adjusting gaskets 20 are made of wear-resistant materials.

[0057] The wear-reducing gap adjusting gaskets 20 on the two end faces of the main wheel body 13 can increase the gap between the external teeth 17 and the radial push plate 3 and the annular cover plate 10, reduce the hard contact between the external teeth 17 and the radial push plate 3 and the annular cover plate 10, effectively reduce the friction force suffered by the main wheel body 13 and the external teeth 17 during rotation, and avoid the jamming of the eccentric gear 8 during rotation. If bearings are used, the sliding friction can be further converted into rolling friction, which can significantly reduce the resistance.

[0058] In this embodiment, the gap adjusting structures 19 include the wear-reducing gap adjusting gaskets 20 respectively arranged on the two end faces of the main wheel body 13.

[0059] Specifically, as shown in Figures 2-5 The wear-reducing gap adjusting gaskets 20 are movably connected with the main wheel body 13.

[0060] Alternatively, the wear-reducing gap adjusting gaskets 20 are integrated with the main wheel body 13.

[0061] In this embodiment, the wear-reducing and clearance-adjusting shim 20 is movably connected to the main wheel body 13.

[0062] Specifically, combining Figure 5 As shown, the maximum outer diameter of the adjusting structure 19 is not greater than the root circle diameter of the eccentric gear 8.

[0063] The maximum outer diameter of the adjusting structure 19 does not exceed the root circle diameter of the eccentric gear 8, so as to ensure that the gear meshing is not disturbed.

[0064] Specifically, combining Figures 1-6 As shown, there are upper clearance steps 58 and lower clearance steps 59 that cooperate with each other between the ends of two adjacent radial push plates 3 in the circumferential direction. The upper clearance steps 58 and lower clearance steps 59 are provided with the strip holes 7.

[0065] Each radial push plate 3 has a downwardly protruding side push plate 60 on its outer side, and the ends of two adjacent side push plates 60 in the circumferential direction are respectively provided with an upper side push clearance step 61 and a lower side push clearance step 62 that can cooperate with each other.

[0066] The lower side-pushing step 62 is provided at the bottom of the side-pushing plate 60, and the upper side-pushing step 61 is provided at the top of the side-pushing plate 60.

[0067] By cooperating with the upper clearance step 58 and the lower clearance step 59, and with cooperating with the upper side clearance step 61 and the lower side clearance step 62, the top and bottom of the radial push plate 3 are located on the same plane.

[0068] The planar consistency design ensures the synchronization of all transfer pins 5, effectively improves the motion accuracy of the transfer pins 5, and facilitates the manufacturing process of the radial push plate 3.

[0069] Specifically, combining Figures 1-4 As shown, the eccentric gear mounting ring 15 is provided with at least two positioning ears 23. The positioning ears 23 are sleeved on the positioning post 24 of the transfer disk 1. The annular cover plate 10 is covered on the eccentric gear mounting ring 15 and fixed on the positioning post 24.

[0070] The eccentric gear mounting ring 15 provides a stable mounting base for the eccentric gear 8. The eccentric gear mounting ring 15 is fixed to the transfer disk 1 by the positioning ear 23 and the positioning post 24. The annular cover plate 10 is placed on the eccentric gear mounting ring 15 and fixed to the positioning post 24 by bolts 63.

[0071] Specifically, combining Figures 2-4 As shown, the eccentric gear drive assembly 11 includes a drive ring 25 with internal teeth. The thickness of the drive ring 25 is adapted to the thickness of the main wheel body 13. An movable gap is left between the eccentric gear mounting ring 15 and the radial push plate 3 at the top.

[0072] Alternatively, the eccentric gear mounting ring 15 is frictionally connected with the radial push plate 3 of the top.

[0073] The outer wall of the driving ring 25 is provided with a driving connection lug 27, which can be connected with a gear ring rotary driver 28. The gear ring rotary driver 28 can drive the driving ring 25 to rotate.

[0074] The inner teeth of the driving ring 25 are in meshing transmission with the outer teeth 17 of the eccentric gear 8. When the driving ring 25 rotates, it can drive the main wheel body 13 to rotate, thereby driving the radial push plate 3 to move radially.

[0075] Specifically, as shown in Figure 2 , Figure 3 and Figure 7 , the positioning disc 29 of the transfer disc 1 is provided with a mounting step 30 adapted to the positioning lug 23. The height change of the mounting step 30 can realize the height change of the eccentric gear mounting ring 15 in the axial direction, so as to flexibly adjust the activity gap between the eccentric gear mounting ring 15 and the radial push plate 3 of the top.

[0076] The bottom of the driving ring 25 is in contact with the inner step 31 inside the eccentric gear mounting ring 15 and the positioning disc 29, and the upper surface of the driving ring 25 is in contact with the annular cover plate 10. The inner step 31 inside the positioning disc 29 plays a role of rotary positioning for the driving ring 25, so as to ensure the rotation accuracy of the driving ring 25.

[0077] As shown in Figures 1-11 , an improved transfer device comprises a transfer disc 1, the bottom of which is provided with a plurality of suspension type transfer needles 5 capable of moving radially and uniformly distributed in the circumferential direction. The suspension type transfer needle 5 comprises a needle body 32 and a hook tongue 33 arranged at the front end of the needle body 32. The rear end of the needle body 32 is provided with a return force applying part 34, and the top of the needle body 32 is provided with a needle seat 35 for suspension and capable of limiting the needle body 32 to move only in the axial direction. The needle seat 35 and the needle body 32 are connected through at least two mortise and tenon structures 36, the positions of which are spaced apart in the axial direction of the needle body 32, so that the needle body 32 is suspended and connected to the needle seat 35. The bottom of the transfer disc 1 is provided with a sliding groove 37 slidingly matched with the needle seat 35. The rear end of the needle body 32 is provided with a force receiving plate 4, which is connected with the transfer needle driving mechanism 38 of the improved transfer device.

[0078] The needle body 32 and the needle seat 35 are also fixed by welding, bonding or riveting.

[0079] The force receiving plate 4 on the needle body 32 of the embodiment can drive the needle body 32 to move horizontally along the axial direction after receiving the force, the return force applying part 34 on the needle body 32 is used to reset the needle body 32 so that the needle body 32 moves along the axial direction, the hook tongue 33 at the front end of the needle body 32 cooperates with the vertical knitting needle of the hosiery machine to perform the operation of transferring the hosiery thread during the reciprocating movement of the needle body 32 along the axial direction, and the needle seat 35 at the top of the needle body 32 can restrict the needle body 32 to move only horizontally along the axial direction, which can ensure that the needle body 32 does not deviate in other positions during the movement along the axial direction, so as to realize the precision control, facilitate the accurate control of the position of the needle body 32, ensure the accurate operation, reduce the complexity of the operation, reduce the risk of error, and ensure the quality and efficiency of the operation of transferring the hosiery thread.

[0080] The needle body 32 is suspended and fixed below the needle seat 35 through two mortise and tenon structures 36, the mortise and tenon structures 36 are spaced apart along the axial direction of the needle body 32, and the butt joint direction of the tenon and the mortise of the mortise and tenon structure 36 is the axial direction of the needle body, so that the mortise and tenon structure 36 can realize the activity limiting of the needle body 32 and the needle seat 35 in the horizontal direction and the activity limiting of the needle body 32 and the needle seat 35 in the vertical direction, and ensure the stability of the fixed connection of the needle body 32 and the needle seat 35.

[0081] Specifically, as shown in Figures 8-11 , the front part and the rear part of the needle body 32 are respectively provided with vertically extending front lugs 41 and rear lugs 42, and correspondingly, the needle seat 35 is provided with front lug through holes 43 and rear lug through holes 44 corresponding to the lugs one by one; the front side of the front lug 41 and the rear lug 42 is respectively provided with a front mortise 45 and a rear mortise 46, and the slots of the front mortise 45 and the rear mortise 46 face the same direction, that is, they both face the front side of the needle body. In addition, the rear side of the front lug 41 has a guide slope structure 47, which facilitates the assembly of the needle body 32 and the needle seat 35 and also plays the role of a reinforcing rib. Among them, the force receiving plate 4 can drive the needle body to move along the axial direction after receiving the force.

[0082] Specifically, as shown in Figures 8-11 , the front lug 41 and the rear lug 42 of the needle body are respectively inserted into the front lug through hole 43 and the rear lug through hole 44 of the needle seat, and the front lug 41 and the rear lug 42 can respectively move in the front lug through hole 43 and the rear lug through hole 44, and through the relative sliding between the needle body and the needle seat, the front mortise 45 and the rear mortise 46 are synchronously tenoned with the needle seat 35, specifically, they are respectively tenoned with the needle seat 35 on the front side of the front lug through hole 43 and the rear lug through hole 44, that is, the front lug through hole 43 and the rear lug through hole 44 on the front side of the needle seat are respectively used as tenons, so that the two mortise and tenon structures 36 are obtained.

[0083] Specifically, as shown in Figures 8-11As shown, the needle body 32 of the embodiment is in a sheet shape, and the needle holder 35 is in a long rectangular cuboid structure. The maximum width of the needle holder 35 is greater than the width of the needle body 32. The two sides of the needle holder 35 are respectively protruded from the side walls of the two sides of the needle body 32, thereby forming a T-shaped structure.

[0084] The opening of the tongue 33 of the embodiment is located at the top of the needle body 32. A displacement slot 49 is arranged at the front end of the tongue 33. The design of the displacement slot can make the stitches on the knitting needle more easily enter the traction surface of the tongue 33 when the tongue 33 approaches the knitting needle.

[0085] The return force applying part 34 of the embodiment includes a return force applying half-hole 50 arranged on the rear end of the needle body 32. A tension spring 51 can be arranged in the return force applying half-hole 50. The tension spring 51 is similar to the annular tension spring in the lip seal ring. For details, please refer to the prior art. When the needle body 32 moves outward along the axial direction, the tension spring 51 is deformed by being pulled outward, thereby applying a return force to the needle body 32 in the axial direction, so as to move the needle body 32 to reset along the axial direction.

[0086] Specifically, in combination with Figure 8 As shown, the transfer disc 1 has a sliding groove 37 extending along the radial direction and a needle body anti-shaking groove 53. The sliding groove 37 is in sliding connection with the needle holder 35. The needle holder 35 can slide in the sliding groove 37 under the action of the force applied to the needle body 32 in the axial direction. The needle body anti-shaking groove 53 is used for accommodating the needle body 32 and allowing the needle body 32 to move in the radial direction of the transfer disc 1. The needle body anti-shaking groove 53 can effectively avoid the shaking of the needle body 32 during the radial movement of the needle body 32, so as to realize precision control and ensure that the position of the needle body 32 will not deviate. The sliding groove 37 and the needle body anti-shaking groove 53 are in communication and are respectively matched with the structures of the needle holder 35 and the needle body 32, thereby also forming a T-shaped structure.

[0087] In addition, the transfer disc 1 is provided with a travel avoiding strip-shaped groove 54 at the top of the front end and the rear end of the sliding groove 37, which is matched with the front lug 41 and the rear lug 42 of the needle body 32. The travel avoiding strip-shaped groove 54 matched with the rear lug 42 penetrates through the upper and lower sides of the transfer disc. The force receiving plate 4 of the needle body 32 penetrates the travel avoiding strip-shaped groove 55 and extends to the upper part. The force receiving plate 4 slides in the travel avoiding strip-shaped groove 54 under the drive of the radial push plate 3 and applies a force to the needle body 32 in the axial direction of the needle body 32. The needle holder 35 can slide in the sliding groove 37 under the action of the force applied to the needle body 32 in the axial direction of the needle body 32.

[0088] The working principle of the utility model is: when eccentric wheel driving assembly 11 drives eccentric gear 8 to rotate, eccentric body 9 of eccentric gear 8 acts on strip-shaped hole 7 of radial push plate 3 to drive radial push plate 3 to move along transfer disc 1 radially, radial push plate 3 can act on stress plate 4 of suspension type transfer needle 5 to push suspension type transfer needle 5 to move along transfer disc 1 radially outward when moving outward radially, suspension type transfer needle 5 moves along transfer disc 1 radially and cooperates with vertical knitting needle of hosiery machine to carry out sock thread transfer operation;

[0089] When eccentric gear 8 rotates, auxiliary wheel body 14 rotates with auxiliary wheel body installation through hole 16 of eccentric gear installation ring 15, auxiliary wheel body installation through hole 16 can limit the radial displacement of auxiliary wheel body 14 to ensure the smoothness of the rotation of eccentric gear 8; the gap between outer tooth 17 and radial push plate 3 and annular cover plate 10 can be increased by wear-reducing gap adjusting gasket 20 on both end faces of main wheel body 13, and the hard contact between outer tooth 17 and radial push plate 3 and annular cover plate 10 is reduced, so as to avoid the jamming of eccentric gear 8 during rotation.

[0090] Embodiment two

[0091] The structure and working principle of the embodiment are basically same as those of embodiment one, and the difference lies in that anti-jamming structure 12 comprises wear-reducing gap adjusting gasket 20 arranged between annular cover plate 10 and radial push plate 3 on both ends of main wheel body 13.

[0092] The gap between main wheel body 13 and radial push plate 3 and annular cover plate 10 can be increased by wear-reducing gap adjusting gasket 20 on both end faces of main wheel body 13, the hard contact between main wheel body 13 and radial push plate 3 and annular cover plate 10 is avoided, the friction force suffered by main wheel body 13 during rotation can be effectively reduced, and the jamming of eccentric gear 8 during rotation can be avoided.

[0093] The specific embodiments described in the present text are merely illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the range defined by the appended claims.

[0094] Although the transfer disc 1, the annular seat 2, the radial push plate 3, the stress plate 4, the suspension type transfer needle 5, the radial movement guide assembly 6, the strip-shaped hole 7, the eccentric gear 8, the eccentric body 9, the annular cover plate 10, the eccentric wheel driving assembly 11, the anti-jamming structure 12, the main wheel body 13, the auxiliary wheel body 14, the eccentric gear mounting ring 15, the auxiliary wheel body mounting through hole 16, the outer tooth 17, the center shaft 18, the gap adjusting structure 19, the wear-reducing gap adjusting gasket 20, the positioning lug 23, the positioning column 24, the driving ring 25, the driving connecting lug 27, the tooth ring rotary driver 28, the positioning disc 29, the mounting step 30, the inner step 31, the needle body 32, the hook tongue 33, the return force applying part 34, the needle seat 35, the mortise and tenon structure 36, the sliding groove 37, the transfer needle driving mechanism 38, the front lug 41, the rear lug 42, the front lug through hole 43, the rear lug through hole 44, the front tenon groove 45, the rear tenon groove 46, the guide slope structure 47, the give-way groove 49, the return force applying half hole 50, the tension spring 51, the needle body anti-shaking groove 53, the stroke avoiding strip-shaped groove 54, the radial strip-shaped groove 56, the positioning pin 57, the upper give-way step 58, the lower give-way step 59, the side push plate 60, the upper side push give-way step 61, the lower side push give-way step 62, the bolt 63 and the like are used more in the text, using these terms is only for more conveniently describing and explaining the essence of the utility model; it is contrary to the spirit of the utility model to explain them as any kind of additional limitation.

Claims

1. A transfer needle drive mechanism for an improved transfer device, comprising an annular seat (2) disposed on a transfer disk (1), wherein the annular seat (2) is provided with at least three radially distributed radial push plates (3) in the circumferential direction, and the radial push plates (3) can act on a force plate (4) to push the suspended transfer needle (5) radially outward when they move outward, wherein a radial movement guide assembly (6) is provided between the radial push plates (3) and the annular seat (2), wherein the ends of two adjacent radial push plates (3) in the circumferential direction are overlapped, and the ends of the overlapping radial push plates (3) are provided with circumferentially extending strip holes (7), wherein an eccentric body (9) of an eccentric gear (8) is provided in the strip hole (7), the top of the eccentric gear (8) is movably connected to an annular cover plate (10), and the eccentric gear (8) is connected to an eccentric wheel drive assembly (11), characterized in that, An anti-jamming structure (12) is provided between the eccentric gear (8), the annular cover plate (10), and the radial push plate (3).

2. The transfer needle drive mechanism of the improved transfer device according to claim 1, characterized in that, The anti-jamming structure (12) includes a secondary wheel body (14) located at the lower end of the main wheel body (13) of the eccentric gear (8). The diameter of the main wheel body (13) is larger than that of the secondary wheel body (14) and they are concentrically arranged. The secondary wheel body (14) is provided with the eccentric body (9) at a position off the rotation center. An eccentric gear mounting ring (15) is fixedly arranged between the eccentric gear (8) and the radial push plate (3) at the top. The secondary wheel body (14) passes through the secondary wheel body mounting through hole (16) of the eccentric gear mounting ring (15).

3. The transfer needle drive mechanism of the improved transfer device according to claim 2, characterized in that, The eccentric gear (8) includes a main gear body (13) and an external tooth (17). The upper end of the main gear body (13) is provided with a central shaft (18). The central shaft (18) passes through the annular cover plate (10) and is rotatably connected to it. The two end faces of the main gear body (13) are respectively provided with a clearance adjustment structure (19) that can reduce the friction between the external tooth (17) and the radial push plate (3) and the annular cover plate (10).

4. The transfer needle drive mechanism of the improved transfer device according to claim 3, characterized in that, The aforementioned gap adjustment structure (19) includes wear-reducing gap adjustment shims (20) respectively disposed on both ends of the main wheel body (13); Alternatively, the adjustment structure (19) may include bearings respectively disposed on both ends of the main wheel body (13).

5. The transfer needle drive mechanism of the improved transfer device according to claim 4, characterized in that, The maximum outer diameter of the adjustment structure (19) is not greater than the root circle diameter of the eccentric gear (8).

6. The transfer needle drive mechanism of the improved transfer device according to any one of claims 1-5, characterized in that, The two adjacent radial push plates (3) in the circumferential direction are respectively provided with an upper clearance step (58) and a lower clearance step (59) that cooperate with each other, and the upper clearance step (58) and the lower clearance step (59) are provided with the strip hole (7). Each radial push plate (3) has a downward protruding side push plate (60) on its outer side, and the ends of two adjacent side push plates (60) in the circumferential direction are respectively provided with an upper side push clearance step (61) and a lower side push clearance step (62) that can cooperate with each other.

7. The transfer needle drive mechanism of the improved transfer device according to any one of claims 2, 3, 4, or 5, characterized in that, The eccentric gear mounting ring (15) is provided with at least two positioning ears (23), the positioning ears (23) are sleeved on the positioning post (24) of the transfer disk (1), and the annular cover plate (10) is covered on the eccentric gear mounting ring (15) and fixed on the positioning post (24).

8. The transfer needle drive mechanism of the improved transfer device according to claim 2, 3, 4, or 5, characterized in that, The eccentric wheel drive assembly (11) includes a drive ring (25) with internal teeth, the thickness of which is adapted to the thickness of the main wheel body (13), and there is a movable gap between the eccentric gear mounting ring (15) and the top radial push plate (3). Alternatively, the eccentric gear mounting ring (15) is frictionally connected to the radial push plate (3) at the top.

9. The transfer needle drive mechanism of the improved transfer device according to claim 1, characterized in that, The anti-jamming structure (12) includes friction-reducing and clearance-adjusting shims (20) disposed between the two ends of the main wheel body (13) and the annular cover plate (10) and the radial push plate (3).

10. An improved transfer device, characterized in that, The system includes a transfer tray (1), the bottom of which is provided with a plurality of suspended transfer needles (5) that can move radially and are evenly distributed circumferentially. Each suspended transfer needle (5) includes a needle body (32) and a hook tongue (33) provided at the front end of the needle body (32). A return force application part (34) is provided at the rear end of the needle body (32). A needle seat (35) is provided at the top of the needle body (32) for suspending and restricting the needle body (32) so that it can only move horizontally along the axial direction. The needle seat (35) and the needle... The body (32) is connected by at least two mortise and tenon structures (36), and the positions of each mortise and tenon structure (36) are distributed at intervals along the axial direction of the needle body (32) so that the needle body (32) is suspended and connected to the needle seat (35). A sliding groove (37) that slides with the needle seat (35) is provided at the bottom of the transfer plate (1). A force plate (4) is provided at the rear end of the needle body (32), and the force plate (4) is connected to the transfer needle drive mechanism (38) of the improved transfer device according to any one of claims 1-9.

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