Transmission structure of circular knitting machine

Abstract

The utility model discloses a transmission structure of a circular knitting machine, which belongs to the field of circular knitting machines and comprises a gear ring, a big tripod gear, a transmission shaft, a first gear, a second gear, a fixing block, a spring, a sliding block and a locking component, the first gear is fixed at the bottom of the transmission shaft and meshed with the gear ring, the top of the transmission shaft penetrates through the second gear, and the second gear is meshed with the spring. Sliding grooves are formed in the two opposite sides of the top of the second gear, sliding blocks are slidably connected into the sliding grooves, springs are arranged between the sliding blocks and the sliding grooves, fixing blocks are fixed to the tops of the sliding blocks, and the two opposite fixing blocks are locked to the upper portion of the transmission shaft through locking assemblies so that the second gear can be locked to the upper portion of the transmission shaft. And the second gear is meshed with the big tripod gear. The problem that the needle grooves of the upper and lower needle cylinders are staggered is solved, only the locking assembly needs to be simply loosened and locked, the structure does not need to be dismantled, the working procedure is simple, and the adjusting time is short.

Description

Technical Field

[0001] The utility model belongs to the field of circular knitting machines, and particularly relates to a transmission structure of a circular knitting machine. Background Art

[0002] The existing double-sided circular knitting machine mainly consists of components such as a frame, a transmission mechanism, a needle selection mechanism, a knitting system, a control system, and auxiliary devices.

[0003] For a main drive shaft assembly of a circular knitting machine with the application number CN202222424782.4, the key points of its technical solution are: including a main shaft, the main shaft is rotatably connected to a bracket in a vertical state, the upper end of the main shaft is transmitted with a needle disc through a first transmission gear, the middle is transmitted with a jacquard mechanism of a lower needle cylinder through a second transmission gear, and the lower end is linked with a power end through a third transmission gear; the lower half section of the main shaft is rotatably supported by a bearing seat, and the bearing seat and the main shaft are rotatably supported through a first bearing and a second bearing. The first bearing and the second bearing are respectively used for bidirectional axial loads upward and downward, and two radial limiting positions are formed in the lower half section of the main shaft. Moreover, the rotations of the first transmission gear and the second transmission gear are synchronous with the main shaft. When the needle grooves of the upper and lower needle cylinders are misaligned, it is necessary to remove the saddle and other components to adjust the position of the needle groove, with poor adjustment accuracy and more working hours and processes spent. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a transmission structure of a circular knitting machine to overcome at least one of the above defects in the prior art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A transmission structure of a circular knitting machine provided by the utility model includes a gear ring, a large tripod gear, a transmission shaft, a first gear, a second gear, a fixing block, a spring, a slider, and a locking component. A first gear is fixed at the bottom of the transmission shaft, the first gear meshes with the gear ring, the top of the transmission shaft passes through the second gear, sliding grooves are opened on opposite sides at the top of the second gear, a slider is slidably connected in the sliding groove, a spring is arranged between the slider and the sliding groove, a fixing block is fixed at the top of the slider, and the opposite two fixing blocks are locked to the upper part of the transmission shaft through the locking component, so that the second gear is locked to the upper part of the transmission shaft, and the second gear meshes with the large tripod gear.

[0007] Preferably, the locking component includes a bolt and a nut. Threaded holes are opened on the front and rear sides of the fixing block, the bolt passes through the threaded hole and is screwed with the nut, so that the opposite two fixing blocks move closer to the middle and are locked to the upper part of the transmission shaft.

[0008] Preferably, the front and rear sides of the fixing block both have a relief groove, and the end of the bolt and the nut are both located in the relief groove.

[0009] Preferably, it further includes a large plate, a third gear, a first bearing seat, and a rotating shaft. The bottom of the large plate is fixed with the first bearing seat. The top end of the rotating shaft passes through the first bearing seat and extends into the interior of the large plate to be fixed with the third gear. The third gear meshes with the toothed ring, and the rotating shaft is connected to the driving source.

[0010] Preferably, the large plate has a first circular groove, and the toothed ring is rotatably arranged in the first circular groove.

[0011] Preferably, it further includes a large tripod, a second bearing seat, and a third bearing seat. The second bearing seat is fixed to the bottom of the large plate. The bottom end of the transmission shaft is inserted into the second bearing seat. The third bearing seat is fixed inside the large tripod, and the top end of the transmission shaft passes through the bottom wall of the large tripod and the third bearing seat.

[0012] Preferably, the large tripod has a second circular groove, and the large tripod gear is rotatably arranged in the second circular groove.

[0013] Preferably, the toothed ring has a first installation position for installing the lower syringe mechanism.

[0014] Preferably, it further includes a fixed disk and a pin. The top of the large tripod gear is detachably connected to the fixed disk through the pin. The fixed disk has a second installation position for installing the upper syringe mechanism.

[0015] Preferably, it further includes legs. The large plate and the large tripod are connected through the legs, and the transmission shaft is located inside the legs.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. To solve the problem of misalignment of the needle slots of the upper and lower syringes, only a simple tightening and loosening of the locking and unlocking components are required, without the need to disassemble the structure, the process is simple, and the adjustment time is short.

[0018] 2. The detachable connection method between the fixed disk and the large tripod gear achieved through the pin plays a guiding role when changing the vertical position of the upper syringe mechanism, enabling the upper syringe mechanism to vertically displace up and down perpendicular to the fixed disk and avoiding angular deviation of the upper syringe mechanism.

[0019] 3. Placing the transmission shaft inside the legs provides protection for the transmission shaft.

[0020] 4. Through the cooperation of bolts and nuts, not only is it convenient to lock and unlock, but also the fastening force is strong, ensuring the stability and reliability of the connection.

[0021] 5. Through the setting of the relief groove, it provides space for the end of the bolt and the nut, reducing additional space occupation.

[0022] 6. Through the setting of the first circular groove, the smooth rotation of the toothed ring is ensured.

[0023] 7. Through the setting of the second circular groove, the smooth rotation of the large tripod gear is ensured. Brief Description of the Drawings

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0025] Figure 2 is a schematic diagram of the transmission cooperation of the present utility model.

[0026] Figure 3 is Figure 2 an enlarged structural schematic diagram of A in

[0027] Figure 4 is a top-view structural schematic diagram of the second gear, fixed block and transmission shaft of the present utility model.

[0028] Figure 5 is a three-dimensional structural schematic diagram of the second gear and fixed block of the present utility model.

[0029] Figure 6 is a schematic diagram of the cooperation between the tooth ring and the large plate of the present utility model.

[0030] Figure 7 is a three-dimensional structural schematic diagram of the large tripod gear, pin and fixed disk of the present utility model.

[0031] The reference signs in the drawings are: 1 - tooth ring, 2 - large tripod gear, 3 - transmission shaft, 4 - first gear, 5 - second gear, 6 - fixed block, 7 - spring, 8 - slider, 9 - locking assembly, 10 - chute, 91 - bolt, 92 - nut, 11 - threaded hole, 12 - relief groove, 13 - large plate, 14 - third gear, 15 - first bearing seat, 16 - rotating shaft, 17 - first circular groove, 18 - large tripod, 19 - second bearing seat, 20 - third bearing seat, 21 - second circular groove, 22 - first mounting position, 23 - fixed disk, 24 - pin, 25 - second mounting position, 26 - leg. Detailed Description of the Preferred Embodiments

[0032] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0033] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. The large tripod gear in this embodiment has teeth throughout the circumference. Only part of the teeth of the large tripod gear in the drawings are shown schematically, and it does not mean that the large tripod gear in this embodiment only has part of the teeth.

[0034] As Figures 1 to 7 shown, a circular knitting machine transmission structure provided in this embodiment includes a tooth ring 1, a large tripod gear 2, a transmission shaft 3, a first gear 4, a second gear 5, a fixing block 6, a spring 7, a slider 8, a locking assembly 9, a large plate 13, a third gear 14, a first bearing seat 15, a rotating shaft 16, a large tripod 18, a second bearing seat 19, a third bearing seat 20, a fixing plate 23, a plug pin 24, and a leg 26.

[0035] A first gear 4 is fixed to the bottom of the transmission shaft 3. The first gear 4 meshes with the tooth ring 1. The top of the transmission shaft 3 passes through the second gear 5. Sliding grooves 10 are formed on the opposite sides of the top of the second gear 5. Sliders 8 are slidably connected in the sliding grooves 10. A spring 7 is provided between the inner side walls of the sliders 8 and the inner side walls of the sliding grooves 10. When locked, the spring 7 is in a compressed state. A fixing block 6 is fixed to the top of the slider 8. The two opposite fixing blocks 6 are locked to the upper part of the transmission shaft 3 through the locking assembly 9, so that the second gear 5 is locked to the upper part of the transmission shaft 3. The second gear 5 meshes with the large tripod gear 2. The tooth ring 1 has a first installation position 22 for installing the lower needle cylinder mechanism. A first bearing seat 15 is fixed to the bottom of the large plate 13. The top end of the rotating shaft 16 passes through the first bearing seat 15 and extends into the interior of the large plate 13 to fix a third gear 14. The third gear 14 meshes with the tooth ring 1. The rotating shaft 16 is connected to a driving source. The second bearing seat 19 is fixed to the bottom of the large plate 13. The bottom end of the transmission shaft 3 is inserted into the second bearing seat 19. The third bearing seat 20 is fixed to the interior of the large tripod 18. The top end of the transmission shaft 3 passes through the bottom wall of the large tripod 18 and the third bearing seat 20. The top of the large tripod gear 2 is detachably connected to a fixing plate 23 through a plug pin 24. The fixing plate 23 has a second installation position 25 for installing the upper needle cylinder mechanism. The large plate 13 and the large tripod 18 are connected by legs 26. The transmission shaft 3 is located inside the legs 26.

[0036] The driving source drives the rotating shaft 16 to rotate, causing the third gear 14 to rotate, driving the gear ring 1 to rotate, driving the lower syringe mechanism to rotate, while driving the first gear 4 to rotate, causing the transmission shaft 3 to rotate, driving the second gear 5 to rotate, causing the large tripod gear 2 to rotate, and further causing the upper syringe mechanism to rotate.

[0037] When the needle slots of the upper and lower syringes are misaligned, the locking component 9 is loosened. Under the action of the spring 7, the slider 8 slides outwards away from the transmission shaft 3, driving the fixed block 6 to move outwards away from the transmission shaft 3, removing the locking and fixing with the transmission shaft 3, and releasing the connection between the transmission shaft 3 and the second gear 5. At this time, when adjusting the position of the lower syringe mechanism by rotation, it will cause the gear ring 1 to rotate, driving the first gear 4 to rotate, causing the transmission shaft 3 to rotate. Although the second gear 5 is still sleeved on the transmission shaft 3 at this time, since the force that locks and fixes the second gear 5 to the transmission shaft 3 by the locking component 9 is removed at this time, affected by the large tripod gear 2, the rotation of the transmission shaft 3 will not drive the second gear 5 to rotate, so that the large tripod gear 2 will not rotate accordingly, and the position of the upper syringe mechanism is fixed, ensuring the adjustment accuracy. In this way, simply adjusting the position of the lower syringe mechanism can solve the problem of misalignment of the needle slots of the upper and lower syringes. Only by simply loosening and tightening the locking component 9 is required, without the need to disassemble the structure, the process is simple, and the adjustment time is short. The detachable connection method between the fixed disk 23 and the large tripod gear 2 realized by the pin 24 plays a guiding role when changing the vertical position of the upper syringe mechanism, enabling the upper syringe mechanism to move vertically up and down perpendicular to the fixed disk 23, and avoiding the angular deviation of the upper syringe mechanism. The transmission shaft 3 is placed inside the leg 26 to protect the transmission shaft 3.

[0038] Among them, the locking component 9 includes a bolt 91 and a nut 92. Threaded holes 11 are opened on both the front and rear sides of the fixed block 6. The bolt 91 passes through the threaded hole 11 and is screwed with the nut 92, so that the two opposite fixed blocks 6 move closer to the middle and are locked to the upper part of the transmission shaft 3. Through the cooperation of the bolt 91 and the nut 92, not only is it convenient to lock and unlock, but also the fastening force is strong, ensuring the stability and reliability of the connection. When unlocking is required, loosen the nut 92 and unscrew the bolt 91, which is simple and convenient to operate.

[0039] Among them, both the front and rear sides of the fixed block 6 have a relief groove 12, and the end of the bolt 91 and the nut 92 are both located in the relief groove 12. Through the setting of the relief groove 12, it provides space for the end of the bolt 91 and the nut 92, reducing the occupation of extra space.

[0040] Among them, the large disk 13 has a first circular ring groove 17, and the gear ring 1 is rotatably arranged in the first circular ring groove 17. Through the setting of the first circular ring groove 17, the smooth rotation of the gear ring 1 is ensured.

[0041] Among them, a second circular groove 21 is provided inside the large tripod 18, and the large tripod gear 2 is rotatably arranged in the second circular groove 21. The arrangement of the second circular groove 21 ensures the smooth rotation of the large tripod gear 2.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A driving structure of a circular knitting machine, characterized in that: It includes a gear ring, a large tripod gear, a transmission shaft, a first gear, a second gear, a fixing block, a spring, a slider, and a locking component; A first gear is fixed to the bottom of the transmission shaft, and the first gear meshes with the gear ring; The top of the transmission shaft passes through the second gear. Sliding grooves are formed on opposite sides of the top of the second gear. Sliders are slidably connected in the sliding grooves. Springs are arranged between the sliders and the sliding grooves. A fixing block is fixed to the top of the slider. The two opposite fixing blocks are locked to the upper part of the transmission shaft through the locking component, so that the second gear is locked to the upper part of the transmission shaft; The second gear meshes with the large tripod gear.

2. The driving structure of a circular knitting machine according to claim 1, characterized in that: The locking component includes a bolt and a nut; Threaded holes are formed on the front and rear sides of the fixing block; The bolt passes through the threaded hole and is screwed with the nut, so that the two opposite fixing blocks move closer to the middle and are locked to the upper part of the transmission shaft.

3. The driving structure of a circular knitting machine according to claim 2, characterized in that: Relieving grooves are formed on the front and rear sides of the fixing block, and the end of the bolt and the nut are both located in the relieving grooves.

4. The driving structure of a circular knitting machine according to claim 1, characterized in that: It further includes a large plate, a third gear, a first bearing seat, and a rotating shaft; A first bearing seat is fixed to the bottom of the large plate. The top end of the rotating shaft passes through the first bearing seat and extends into the interior of the large plate to be fixed with a third gear. The third gear meshes with the gear ring, and the rotating shaft is connected to a driving source.

5. The driving structure of a circular knitting machine according to claim 4, characterized in that: The large plate has a first circular ring groove, and the gear ring is rotatably arranged in the first circular ring groove.

6. The driving structure of a circular knitting machine according to claim 4, characterized in that: It further includes a large tripod, a second bearing seat, and a third bearing seat; The second bearing seat is fixed to the bottom of the large plate, and the bottom end of the transmission shaft is inserted into the second bearing seat; The third bearing seat is fixed inside the large tripod, and the top end of the transmission shaft passes through the bottom wall of the large tripod and the third bearing seat.

7. The driving structure of a circular knitting machine according to claim 6, characterized in that: The large tripod has a second circular ring groove, and the large tripod gear is rotatably arranged in the second circular ring groove.

8. The driving structure of a circular knitting machine according to claim 1, characterized in that: The gear ring has a first installation position for installing a lower needle cylinder mechanism.

9. The driving structure of a circular knitting machine according to claim 1, characterized in that: It further includes a fixing plate and a pin; The top of the large tripod gear is detachably connected to the fixing plate through a pin; The fixing plate has a second installation position for installing an upper needle cylinder mechanism.

10. The driving structure of a circular knitting machine according to claim 6, characterized in that: It further includes legs; The large plate and the large tripod are connected by legs; The transmission shaft is located inside the legs.

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