Double-layer rollers for computer flat knitting machines

Abstract

The present invention discloses a double-layer roller for a computer flat knitting machine, relates to a computer flat knitting machine, and aims to solve the problem that the upper high-position roller mechanism and the lower high-position roller mechanism are respectively configured with stepper motor drives, and the coordination between the two is poor. The key points of the technical solution are: a double-layer roller for a computer flat knitting machine, comprising an active end mounting seat, a driven end mounting seat, an upper roller and a lower roller, the upper roller comprising an upper roller swing arm A and an upper roller swing arm B, the lower roller comprising a lower roller swing arm A and a lower roller swing arm B; the active end mounting seat is provided with a servo motor, the servo motor is provided with a main transmission mechanism; the driven end mounting seat is provided with a secondary transmission mechanism. The double-layer roller for a computer flat knitting machine of the present invention realizes the technical effect of a single power source synchronously driving the lower roller and the upper roller, and effectively improves the coordination between the two.

Description

Technical Field

[0001] The present invention relates to a computer flat knitting machine, and more particularly to a double-layer roller used for the computer flat knitting machine. Background Art

[0002] The pulling mechanism of the computerized flat knitting machine mainly consists of a sinker, a bottom plate, and main and auxiliary rollers. The double-layer roller is a form of auxiliary roller.

[0003] A double-layer high-position roller device is disclosed in a Chinese patent announcement with announcement number CN207313847U, and its technical highlights are: it includes an upper high-position roller mechanism and a lower high-position roller mechanism; the upper high-position roller mechanism includes an upper roller bracket, on which are mounted two groups of upper roller cloth winding gears arranged in parallel, and two groups of upper roller driving gears arranged in parallel below the upper roller cloth winding gears, the upper roller cloth winding gears are meshed and connected with the upper roller driving gears located below, the upper roller driving gears are connected to the upper roller sprocket, and the upper roller sprocket is driven by the upper roller stepper motor.

[0004] In the above technical solution, the upper high roller mechanism and the lower high roller mechanism are respectively configured with stepper motor drives, which results in poor coordination between the two. Therefore, a new solution is needed to solve this problem. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a double-layer roller for a computer flat knitting machine, which can achieve the technical effect of synchronously driving the lower roller and the upper roller with a single power source, thereby effectively improving the coordination between the two.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A double-layer roller for a computer flat knitting machine, comprising an active end mounting seat, a driven end mounting seat, and an upper roller and a lower roller arranged between the active end mounting seat and the driven end mounting seat, wherein the upper roller comprises an upper roller swing arm A and an upper roller swing arm B, and the lower roller comprises a lower roller swing arm A and a lower roller swing arm B; one end of the upper roller swing arm A, the upper roller swing arm B, the lower roller swing arm A and the lower roller swing arm B is provided with an active The end pin shaft is rotatably connected to the active end mounting seat, and the other end of the four is provided with a driven end pin shaft which is rotatably connected to the driven end mounting seat; the active end mounting seat is provided with a servo motor, and the servo motor is provided with a main transmission mechanism, and the main transmission mechanism is connected to the active end pin shaft of the lower roller swing arm A and the lower roller swing arm B; the driven end mounting seat is provided with an auxiliary transmission mechanism, and the auxiliary transmission mechanism transmission-connects the driven end pin shaft of the upper roller swing arm A and the lower roller swing arm B, and the driven end pin shaft of the upper roller swing arm B and the lower roller swing arm A.

[0007] By adopting the above-mentioned technical scheme, when the present application is working, the servo motor outputs torque, which acts on the active end pin shaft of the lower roller swing arm A and the lower roller swing arm B after the torque transmission of the main transmission mechanism, thereby driving the lower roller swing arm A and the lower roller swing arm B to swing, that is, driving the lower roller to work; when the lower roller is working, the driven end pin shaft of the lower roller swing arm A and the lower roller swing arm B rotates synchronously, and after the torque transmission of the auxiliary transmission mechanism, acts on the driven end pin shaft of the upper roller swing arm A and the upper roller swing arm B, thereby driving the upper roller swing arm A and the upper roller swing arm B to swing, that is, driving the upper roller to work; in summary, the present application utilizes the main transmission mechanism to connect the servo motor and the lower roller, and utilizes the auxiliary transmission mechanism to connect the lower roller and the upper roller, thereby achieving the technical effect of synchronously driving the lower roller and the upper roller by a single power source, and effectively improving the coordination between the two.

[0008] The present invention is further configured as follows: a deep groove ball bearing is arranged between the active end pin shaft and the active end mounting seat, and a deep groove ball bearing is arranged between the passive end pin shaft and the passive end mounting seat.

[0009] The present invention is further configured as follows: the main transmission mechanism includes two driving end gears fixed to the driven end pin shaft, double-sided racks slidably connected to the driving end mounting seat, and a reciprocating drive assembly for driving the double-sided racks, the double-sided racks are respectively meshed with the two driving end gears, and the reciprocating drive assembly is transmission-connected to the servo motor and the double-sided racks.

[0010] The present invention is further configured as follows: the reciprocating drive assembly includes a cam fixed to the output shaft of the servo motor, and a connecting rod with one end rotatably connected to the cam, and the other end of the connecting rod is rotatably connected to the bottom end of the double-sided racks.

[0011] The present invention is further configured as follows: at least two limiting columns are arranged inside the active end mounting seat, and two travel grooves are formed through the double-sided racks along the length direction, and the two limiting columns are respectively slidably matched with the corresponding travel grooves.

[0012] The present invention is further configured as follows: two convex strips are symmetrically arranged on the inner wall of the active end mounting seat, and the two convex strips slidably clamp the racks on both sides.

[0013] The present invention is further configured as follows: the auxiliary transmission mechanism includes four driven end sprockets and an intermediate transmission group, and the four driven end sprockets are driven end sprocket A, driven end sprocket B, driven end sprocket C and driven end sprocket D in sequence; the driven end sprocket A is fixed to the driven end pin shaft of the lower roller swing arm A, the driven end sprocket B is fixed to the driven end pin shaft of the lower roller swing arm B, the driven end sprocket C is fixed to the driven end pin shaft of the upper roller swing arm A, and the driven end sprocket D is fixed to the driven end pin shaft of the upper roller swing arm B; the intermediate transmission group includes two chains, one of which has its two ends connected to the driven end sprocket A and the driven end sprocket C respectively, and the other of the chains has its two ends connected to the driven end sprocket B and the driven end sprocket D respectively.

[0014] In summary, the present invention has the following beneficial effects: the present application utilizes a main transmission mechanism to connect the servo motor and the lower roller, and utilizes a sub-transmission mechanism to connect the lower roller and the upper roller, thereby achieving the technical effect of a single power source synchronously driving the lower roller and the upper roller, and effectively improving the coordination between the two; utilizing deep groove ball bearings to reduce the friction between the active end pin shaft and the active end mounting seat, and between the driven end pin shaft and the driven end mounting seat, and effectively improving the working smoothness of the upper roller and the lower roller; adopting the main transmission mechanism of the present application, the servo motor only needs to output in the same direction to drive the lower roller. The lower roller swing arm A and the lower roller swing arm B swing back and forth, which effectively improves the service life of the application compared to the method of continuously changing the output direction of the servo motor; the cooperation between the two limiting columns and the two stroke grooves is utilized to limit the sliding trajectory of the racks on both sides, effectively ensuring the sliding stability of the racks on both sides; on the premise of further limiting the racks on both sides, the sliding smoothness of the racks on both sides is ensured; the upper roller and the lower roller always maintain different motion states, that is, when the upper roller performs a closing motion, the lower roller performs an expanding motion, and when the upper roller performs an expanding motion, the lower roller performs a closing motion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of this application;

[0016] Figure 2 This is an exploded view of the active end mounting seat of the present application, and the image is truncated for the convenience of representation;

[0017] Figure 3 This is an exploded view of the active end mounting seat of the present application from another perspective;

[0018] Figure 4 This is an exploded view of the driven end mounting seat of the present application, and the view is processed in stages for the convenience of presentation.

[0019] Description of the drawings: 1. Active end mounting seat; 11. Active end pin shaft; 12. Servo motor; 13. Deep groove ball bearing; 14. Active end gear; 15. Double-sided rack; 16. Cam; 17. Connecting rod; 18. Limiting column; 181. Travel groove; 19. Raised strip; 2. Driven end mounting seat; 21. Driven end pin shaft; 22. Driven end sprocket A; 23. Driven end sprocket B; 24. Driven end sprocket C; 25. Driven end sprocket D; 26. Chain; 31. Upper roller swing arm A; 32. Upper roller swing arm B; 41. Lower roller swing arm A; 42. Lower roller swing arm B. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0021] Double-layer rollers for computer flat knitting machines, such as Figure 1 As shown, it includes an active end mounting seat 1, a driven end mounting seat 2, and an upper roller and a lower roller arranged between the active end mounting seat 1 and the driven end mounting seat 2. The upper roller includes an upper roller swing arm A31 and an upper roller swing arm B32, and the lower roller includes a lower roller swing arm A41 and a lower roller swing arm B42. One end of the upper roller swing arm A31, the upper roller swing arm B32, the lower roller swing arm A41 and the lower roller swing arm B42 is fixedly installed with an active end pin shaft 11 and is rotatably connected to the active end mounting seat 1. The four A driven end pin shaft 21 is fixedly installed at the other end and is rotatably connected to the driven end mounting seat 2; a servo motor 12 is installed on the active end mounting seat 1, and the servo motor 12 is provided with a main transmission mechanism, and the main transmission mechanism is connected to the active end pin shaft 11 of the lower roller swing arm A41 and the lower roller swing arm B42; the driven end mounting seat 2 is provided with a secondary transmission mechanism, and the secondary transmission mechanism transmission connects the driven end pin shaft 21 of the upper roller swing arm A31 and the lower roller swing arm B42, and the driven end pin shaft 21 of the upper roller swing arm B32 and the lower roller swing arm A41.

[0022] When the present application is working, the servo motor 12 outputs torque, which, after the torque transmission of the main transmission mechanism, acts on the active end pin shaft 11 of the lower roller swing arm A41 and the lower roller swing arm B42, thereby driving the lower roller swing arm A41 and the lower roller swing arm B42 to swing, that is, driving the lower roller to work; when the lower roller is working, the driven end pin shaft 21 of the lower roller swing arm A41 and the lower roller swing arm B42 rotates synchronously, and after the torque transmission of the auxiliary transmission mechanism, The driven end pin shaft 21 acts on the upper roller swing arm A31 and the upper roller swing arm B32, thereby driving the upper roller swing arm A31 and the upper roller swing arm B32 to swing, that is, driving the upper roller to work; in summary, the present application utilizes the main transmission mechanism to connect the servo motor 12 and the lower roller, and utilizes the auxiliary transmission mechanism to connect the lower roller and the upper roller, thereby achieving the technical effect of synchronously driving the lower roller and the upper roller with a single power source, effectively improving the coordination between the two.

[0023] In order to improve the working smoothness of the upper roller and the lower roller, Figure 2 , Figure 4 As shown, a deep groove ball bearing 13 is arranged between the active end pin shaft 11 and the active end mounting seat 1, and a deep groove ball bearing 13 is arranged between the driven end pin shaft 21 and the driven end mounting seat 2, so that the deep groove ball bearing 13 is utilized to reduce the friction between the active end pin shaft 11 and the active end mounting seat 1, and between the driven end pin shaft 21 and the driven end mounting seat 2, thereby effectively improving the working smoothness of the upper roller and the lower roller.

[0024] The specific structure of the main transmission mechanism is as follows: Figure 2 , Figure 3 As shown, the main transmission mechanism includes two driving end gears 14 fixed to the driven end pin shaft 21, double-sided racks 15 slidably connected to the driving end mounting seat 1, and a reciprocating drive assembly for driving the double-sided racks 15. The double-sided racks 15 are respectively meshed with the two driving end gears 14. The reciprocating drive assembly is connected to the servo motor 12 and the double-sided racks 15. When it is necessary to drive the lower roller to work, the servo motor drives the double-sided racks 15 to reciprocate in the vertical direction through the reciprocating drive assembly. The double-sided racks 15 After completing a reciprocating motion, after being transmitted by the double-sided racks 15 and the two driving end gears 14, the lower roller swing arm A41 and the lower roller swing arm B42 of the lower roller are swung and separated; in summary, by adopting the main transmission mechanism of the present application, the servo motor 12 only needs to output in the same direction to drive the lower roller swing arm A41 and the lower roller swing arm B42 of the lower roller to swing back and forth, which effectively improves the service life of the present application compared to continuously changing the output direction of the servo motor 12.

[0025] The specific structure of the reciprocating drive assembly is as follows: Figure 2 , Figure 3 As shown, the reciprocating drive assembly includes a cam 16 fixed to the output shaft of the servo motor 12, and a connecting rod 17 with one end rotatably connected to the cam 16, and the other end of the connecting rod 17 is rotatably connected to the bottom end of the double-sided rack 15; in the process of driving the cam to rotate, the servo motor 12 generates a reciprocating pulling force and a thrust force on the connecting rod 17, thereby pulling and pushing the double-sided rack 15 to reciprocate.

[0026] The double-sided racks 15 are slidably mounted on the active end mounting seat 1 in the following manner: Figure 2 , Figure 3 As shown, at least two limiting columns 18 are fixedly installed in the active end mounting seat 1, and two travel grooves 181 are provided through the double-sided racks 15 along the length direction. The two limiting columns 18 are respectively slidably matched with the corresponding travel grooves 181; thereby, the sliding trajectory of the double-sided racks 15 is limited by the cooperation between the two limiting columns 18 and the two travel grooves 181, thereby effectively ensuring the sliding stability of the double-sided racks 15.

[0027] It should be noted that if Figure 2 , Figure 3 As shown, the inner wall of the active end mounting seat 1 is symmetrically formed with two convex strips 19, and the two convex strips 19 slidably clamp the double-sided racks 15, so that the two convex strips 19 are used to limit the activity of the double-sided racks 15 along the axial direction of the limiting column 18, and reduce the contact surface between the active end mounting seat 1 and the double-sided racks 15, thereby ensuring the smooth sliding of the double-sided racks 15 on the premise of further limiting the double-sided racks 15.

[0028] The specific structure of the auxiliary transmission mechanism is as follows: Figure 4 As shown, the auxiliary transmission mechanism includes four driven end sprockets and an intermediate transmission group. The four driven end sprockets are driven end sprocket A22, driven end sprocket B23, driven end sprocket C24 and driven end sprocket D25 in sequence; the driven end sprocket A22 is fixed to the driven end pin 21 of the lower roller swing arm A41, the driven end sprocket B23 is fixed to the driven end pin 21 of the lower roller swing arm B42, the driven end sprocket C24 is fixed to the driven end pin 21 of the upper roller swing arm A31, and the driven end sprocket D25 is fixed to the driven end pin 21 of the upper roller swing arm B32; the intermediate transmission group includes two chains 2 6, the two ends of one chain 26 are respectively connected to the driven end sprocket A22 and the driven end sprocket C24, and the two ends of the other chain 26 are respectively connected to the driven end sprocket B23 and the driven end sprocket D25; the upper roller swing arm A31 is linked with the lower roller swing arm B42, and the direction of rotation is kept consistent, and the upper roller swing arm B32 is linked with the lower roller swing arm A41, and the direction of rotation is kept consistent. Combining the above two points, the upper roller and the lower roller always maintain different motion states, that is, when the upper roller performs a closing motion, the lower roller performs an expanding motion, and when the upper roller performs an expanding motion, the lower roller performs a closing motion.

[0029] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A double-layer roller for a computerized flat knitting machine, comprising an active end mounting seat (1), a passive end mounting seat (2), and an upper roller and a lower roller arranged between the active end mounting seat (1) and the passive end mounting seat (2), wherein the upper roller comprises an upper roller swing arm A (31) and an upper roller swing arm B (32), and the lower roller comprises a lower roller swing arm A (41) and a lower roller swing arm B (42), characterized in that: One end of the upper roller swing arm A (31), the upper roller swing arm B (32), the lower roller swing arm A (41) and the lower roller swing arm B (42) is provided with an active end pin shaft (11) rotatably connected to the active end mounting seat (1), and the other ends of the four are provided with a driven end pin shaft (21) rotatably connected to the driven end mounting seat (2); The active end mounting seat (1) is provided with a servo motor (12), and the servo motor (12) is provided with a main transmission mechanism, and the main transmission mechanism is connected to the active end pin shafts (11) of the lower roller swing arm A (41) and the lower roller swing arm B (42); The main transmission mechanism comprises two driving end gears (14) fixed to the driven end pin shaft (21), a double-sided rack (15) slidably connected to the driving end mounting seat (1), and a reciprocating drive assembly for driving the double-sided rack (15), the double-sided rack (15) respectively meshing with the two driving end gears (14), and the reciprocating drive assembly is drivingly connected to the servo motor (12) and the double-sided rack (15); The driven end mounting seat (2) is provided with an auxiliary transmission mechanism, the auxiliary transmission mechanism transmission-connecting the driven end pin shaft (21) of the upper roller swing arm A (31) and the lower roller swing arm B (42), and the driven end pin shaft (21) of the upper roller swing arm B (32) and the lower roller swing arm A (41); The auxiliary transmission mechanism comprises four driven end sprockets and an intermediate transmission group, wherein the four driven end sprockets are driven end sprocket A (22), driven end sprocket B (23), driven end sprocket C (24) and driven end sprocket D (25); The driven end sprocket A (22) is fixed to the driven end pin shaft (21) of the lower roller swing arm A (41), the driven end sprocket B (23) is fixed to the driven end pin shaft (21) of the lower roller swing arm B (42), the driven end sprocket C (24) is fixed to the driven end pin shaft (21) of the upper roller swing arm A (31), and the driven end sprocket D (25) is fixed to the driven end pin shaft (21) of the upper roller swing arm B (32); The intermediate transmission group comprises two chains (26), wherein two ends of one chain (26) are respectively connected to a driven end sprocket A (22) and a driven end sprocket C (24), and two ends of the other chain (26) are respectively connected to a driven end sprocket B (23) and a driven end sprocket D (25).

2. The double-layer roller for a computerized flat knitting machine according to claim 1, characterized in that: A deep groove ball bearing (13) is arranged between the active end pin shaft (11) and the active end mounting seat (1), and a deep groove ball bearing (13) is arranged between the passive end pin shaft (21) and the passive end mounting seat (2).

3. The double-layer roller for a computerized flat knitting machine according to claim 1, characterized in that: The reciprocating drive assembly comprises a cam (16) fixed to the output shaft of the servo motor (12), and a connecting rod (17) one end of which is rotatably connected to the cam (16), and the other end of the connecting rod (17) is rotatably connected to the bottom end of the double-sided racks (15).

4. The double-layer roller for a computerized flat knitting machine according to claim 1, characterized in that: At least two limiting columns (18) are arranged inside the active end mounting seat (1), and two travel grooves (181) are formed through the double-sided racks (15) along the length direction, and the two limiting columns (18) are respectively slidably matched with the corresponding travel grooves (181).

5. The double-layer roller for a computerized flat knitting machine according to claim 1, characterized in that: The inner wall of the active end mounting seat (1) is symmetrically provided with two convex strips (19), and the two convex strips (19) slidably clamp the double-sided racks (15).

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