A synchronous transmission structure of a printer assembly device

Abstract

The utility model discloses a kind of synchronous transmission structure of printer assembly equipment, including support seat, connecting seat, double-shaft servo motor, screw cylinder, lifting seat, screw rod, second shaft sleeve, driven bevel gear, No. transmission shaft, No. 2 transmission shaft, driving bevel gear, the connecting seat is fastened and installed in the left and right two parts of support seat, and double-shaft servo motor is installed in middle part, the screw cylinder that can rotate along its virtual axis is installed in the left and right two parts of support seat, lifting seat is arranged below support seat. The utility model controls double-shaft servo motor to carry out positive and negative rotation by controller, i. e. it can drive two screw cylinders to carry out synchronous positive and negative rotation, then make two screw rods move synchronously up and down, to realize the synchronous lifting of lifting seat whole, and by the angle of control servo motor rotation, i. e. it can use the transmission ratio of driving bevel gear and driven bevel gear unchanged to realize the only of screw cylinder rotation circle number, to accurately control the lifting distance of lifting seat.

Description

Technical Field

[0001] This utility model relates to the field of mechanical assembly technology, and in particular to a synchronous transmission structure for printer assembly equipment. Background Technology

[0002] Printers utilize various transmission mechanisms to achieve their printing function, with gear transmission being a common form. Chinese utility model patent application number 202423059925.1 provides a printer gear assembly device. This device, "through a precision transmission system composed of an electric slide rail, cylinder one, a motor, and a bidirectional cylinder, can accurately control the position and angle of the gears, ensuring a perfect match between the gears and the assembly points of the printer components, improving assembly accuracy and reducing malfunctions caused by improper assembly." However, its use of two cylinders one as the driving mechanism for the vertical movement of the mounting plate two makes it difficult to accurately control the vertical movement distance, and the synchronization of extension and retraction is also difficult to control. It requires a relatively complex pneumatic system and detection devices (such as electric valves, flow valves, and distance sensors), which further increases the complexity of the electrical control system, thereby increasing initial investment and maintenance costs, highlighting its shortcomings. Utility Model Content

[0003] The purpose of this invention is to provide a synchronous transmission structure for printer assembly equipment to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A synchronous transmission structure for a printer assembly device includes a support base, a connecting base, a dual-axis servo motor, screw barrels, a lifting base, screws, a second bushing, a driven bevel gear, a first transmission shaft, a second transmission shaft, and a driving bevel gear. Connecting bases are fastened to both the left and right sides of the support base, and a dual-axis servo motor is mounted in the middle. Screw barrels capable of rotating along their virtual axes are mounted on both the left and right sides of the support base. A lifting base is located below the support base, and vertical screws are fastened to both the left and right sides of the lifting base. Second bushings are coaxially fastened to the two screw barrels and threadedly connected to the two screws. Each bushing is coaxially fixed with a driven bevel gear. The two ends of the shaft of the dual-axis servo motor are coaxially fixed with a first drive shaft and a second drive shaft, respectively. Each of the first and second drive shafts is coaxially fixed with a driving bevel gear. The two driving bevel gears mesh with the two driven bevel gears. When the dual-axis servo motor rotates, it can drive the two screw barrels to rotate synchronously through the first drive shaft, the second drive shaft, the driving bevel gears, and the driven bevel gears. When the two screw barrels rotate synchronously, they can move axially synchronously through the threaded connection with the screw rod. The dual-axis servo motor is electrically connected to an external controller and power supply.

[0005] Based on the above technical solution, the upper part of the connecting seat and the middle part of the lifting seat are respectively provided with multiple vertical mounting holes. The connecting seat is detachably fastened to the support seat by fasteners. The middle part of the support seat is detachably fastened with a buckle by fasteners. The buckle is detachably inserted into the dual-axis servo motor and together with the support seat, it fastens the dual-axis servo motor.

[0006] Based on the above technical solution, the two connecting seats are rotatably connected to upper support rollers respectively. The first transmission shaft includes a first shaft body and a first bushing. The second transmission shaft includes a second shaft body and a first bushing. The first shaft body and the second shaft body are detachably coaxially connected to the two axial ends of the rotating shaft of the dual-axis servo motor and achieve synchronous rotation. The first shaft body and the second shaft body are detachably coaxially connected to the two upper support rollers and achieve synchronous rotation. The two first bushings are detachably coaxially connected to the first shaft body and the second shaft body and achieve synchronous rotation. The two first bushings are coaxially fixed to the active bevel gear respectively.

[0007] Based on the above technical solution, a first compression spring is inserted into the first shaft with a gap, and a second compression spring is inserted into the second shaft with a gap. The two axial ends of the first compression spring and the two axial ends of the second compression spring are respectively pressed against the axial ends of the upper support roller and the axial ends of the first bushing.

[0008] Based on the above technical solution, each of the left and right parts of the support base is rotatably connected to a vertical lower support roller. The two screw cylinders are detachably and coaxially inserted with the two lower support rollers to achieve synchronous rotation. A support ring is fixed to the outer wall of the bottom of the screw cylinder. Vertical compression springs of No. 3 are inserted into the outside of the two screw cylinders with a gap. The upper part of the screw cylinder is detachably and axially inserted with the No. 2 bushing, and a limit bolt is connected to the radial thread. The limit bolt is inserted through the No. 2 bushing. The two axial ends of the No. 3 compression spring abut against and tighten with the axial ends of the support ring and the axial ends of the lower support rollers, respectively.

[0009] Based on the above technical solution, each of the left and right sides of the lifting seat is fixed with a vertical No. 1 mounting cylinder. The two No. 1 mounting cylinders are detachably axially inserted into the screw rods. The bottom of the two screw rods is radially fixed with pressure plates. The two No. 1 mounting cylinders are detachably coaxially threaded with nuts. The two nuts are inserted into the screw rods through gaps and together with the No. 1 mounting cylinders, they clamp the pressure plates.

[0010] Based on the above technical solution, a guide mechanism is installed between the lifting seat and the support seat, and the lifting seat moves linearly up and down relative to the support seat using the guide mechanism.

[0011] Based on the above technical solution, the guiding mechanism includes a second mounting cylinder, a mounting column, a guide cylinder, a guide column, and a clamping part. The bottom end of the support base is fixed with a vertical second mounting cylinder, and the top center of the lifting base is fixed with a vertical mounting column. The bottom of the guide cylinder is detachably connected to the mounting column via a coaxial thread. The upper part of the guide cylinder is axially slidably connected to the guide column. The guide column is detachably connected to the second mounting cylinder via a coaxial thread. The bottom of the guide cylinder and the upper part of the guide column are respectively provided with clamping parts for easy clamping.

[0012] Compared with the prior art, the present invention has the following advantages: The present invention controls the dual-axis servo motor to rotate in both directions by the controller, which drives the two screw barrels to rotate synchronously in both directions, thereby enabling the two screws to move up and down synchronously, thus realizing the synchronous lifting of the entire lifting seat. By controlling the rotation angle of the servo motor, the number of rotations of the screw barrel can be uniquely achieved by using the constant transmission ratio between the active bevel gear and the driven bevel gear, thereby accurately controlling the lifting distance of the lifting seat. There is no need for a complex pneumatic system and electrical control system, which reduces the initial investment cost and maintenance cost. The detachable No. 1 bushing, No. 2 bushing, limit bolt, nut, guide cylinder and guide column facilitate timely replacement when worn, ensuring the stability of synchronous transmission after long-term use. At the same time, the ease of disassembly and replacement can reduce maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the front view of this utility model.

[0015] Figure 3 This is a schematic diagram showing the fit of the screw barrel, screw rod, No. 1 mounting cylinder, and nut of this utility model.

[0016] Figure 4 This is a schematic diagram showing the fit between the screw barrel, the second bushing, the guide post, and the second mounting cylinder of this utility model.

[0017] In the diagram: 1. Support base, 2. Connecting base, 3. Dual-axis servo motor, 4. Screw barrel, 5. Lifting base, 6. Screw, 8. Driven bevel gear, 9. Drive shaft 1, 10. Drive shaft 2, 11. Driven bevel gear, 12. Mounting hole, 13. Buckle, 14. Upper support roller, 15. Shaft 1, 16. Bushing 1, 17. Shaft 2, 18. Bushing 2, 19. Compression spring 1, 20. Compression spring 2, 21. Lower support roller, 22. Support ring, 23. Compression spring 3, 24. Limit bolt, 25. Mounting cylinder 1, 26. Pressure plate, 27. Nut, 28. Guide mechanism, 29. Mounting cylinder 2, 30. Mounting column, 31. Guide cylinder, 32. Guide column, 33. Clamping part. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] like Figures 1-4 As shown, a synchronous transmission structure for a printer assembly device includes a support base 1, a connecting base 2, a dual-axis servo motor 3, screw barrels 4, a lifting base 5, screws 6, a second bushing 18, a driven bevel gear 8, a first transmission shaft 9, a second transmission shaft 10, and a driving bevel gear 11. The support base 1 has connecting bases 2 fastened to its left and right sides, and a dual-axis servo motor 3 installed in its center. Each of the left and right sides of the support base 1 has a screw barrel 4 capable of rotating along its virtual axis. A lifting base 5 is located below the support base 1. Each of the left and right sides of the lifting base 5 has a vertical screw 6 fastened to its left and right sides. The two screw barrels 4 are coaxially fastened with second bushings 18, and are respectively threaded to the two screws 6. The driven bevel gears 8 are coaxially fixed to the bushings 18. The two ends of the rotating shaft of the dual-axis servo motor 3 are coaxially fastened with the first transmission shaft 9 and the second transmission shaft 10, respectively. The first transmission shaft 9 and the second transmission shaft 10 are coaxially fixed with the driving bevel gears 11. The two driving bevel gears 11 mesh with the two driven bevel gears 8, respectively. When the dual-axis servo motor 3 rotates, it can drive the two screw barrels 4 to rotate synchronously through the first transmission shaft 9, the second transmission shaft 10, the driving bevel gears 11 and the driven bevel gears 8, respectively. When the two screw barrels 4 rotate synchronously, they can move axially synchronously through the threaded connection with the screw 6. The dual-axis servo motor 3 is electrically connected to the external controller and power supply.

[0020] Two connecting seats 2 are fastened to the slider of the electric slide rail of a printer gear assembly device mentioned in the background technology patent. Then, the lifting seat 5 replaces the mounting plate 2 in the patent document. The dual-axis servo motor 3 is controlled by the controller to rotate forward and backward, which drives the two screw cylinders 4 to rotate forward and backward synchronously. This causes the two screws 6 to move up and down synchronously, thereby realizing the synchronous lifting of the lifting seat 5 as a whole. By controlling the rotation angle of the servo motor, the number of rotations of the screw cylinder 4 can be uniquely achieved by using the constant transmission ratio between the active bevel gear 11 and the driven bevel gear 8. This allows for accurate control of the lifting distance of the lifting seat 5, eliminating the need for complex pneumatic and electrical control systems and reducing initial investment and maintenance costs.

[0021] The upper part of the connecting seat 2 and the middle part of the lifting seat 5 are respectively provided with multiple vertical mounting holes 12. The connecting seat 2 is detachably fastened to the support seat 1 by fasteners. The middle part of the support seat 1 is detachably fastened with a buckle 13 by fasteners. The fasteners are existing technology, such as bolts and nuts. The buckle 13 is detachably inserted into the dual-axis servo motor 3 and together with the support seat 1, it fastens the dual-axis servo motor 3.

[0022] Furthermore, the mounting hole 12 facilitates the connection of the connecting seat 2 and the lifting seat 5 to the outside. By disassembling the buckle 13 and fasteners, the connecting seat 2 and the dual-axis servo motor 3 can be easily disassembled or replaced, which facilitates the production of this synchronous transmission structure.

[0023] The two connecting seats 2 are rotatably connected to the upper support rollers 14 respectively. The first drive shaft 9 includes a first shaft body 15 and a first bushing 16. The second drive shaft 10 includes a second shaft body 17 and a first bushing 16. The first shaft body 15 and the second shaft body 17 are detachably coaxially connected to the two axial ends of the rotating shaft of the dual-axis servo motor 3 and rotate synchronously. The first shaft body 15 and the second shaft body 17 are detachably coaxially connected to the two upper support rollers 14 and rotate synchronously. The two first bushings 16 are detachably coaxially connected to the first shaft body 15 and the second shaft body 17 and rotate synchronously. The two first bushings 16 are coaxially fixed to the active bevel gear 11 respectively.

[0024] Furthermore, the connecting seat 2 and the upper support roller 14 support the first drive shaft 9 and the second drive shaft 10, making the first drive shaft 9 and the second drive shaft 10 rotate more smoothly. After the connecting seat 2 is removed, the first drive shaft 9 and the second drive shaft 10 can be easily replaced. This makes it easy to replace the drive bevel gear 11 together with the first bushing 16 after it wears out, so as to ensure the stability of synchronous transmission.

[0025] A compression spring 19 is inserted into the first shaft 15 with a gap, and a compression spring 20 is inserted into the second shaft 17 with a gap. The two axial ends of the first compression spring 19 and the two axial ends of the second compression spring 20 are respectively in abutting against the axial ends of the upper support roller 14 and the axial ends of the first bushing 16.

[0026] Furthermore, the elastic repulsive force of the first compression spring 19 and the second compression spring 20 can continuously push the first drive shaft 9 and the second drive shaft 10 toward the middle of the dual-axis servo motor 3, thereby ensuring that the position of the active bevel gear 11 relative to the dual-axis servo motor 3 remains stable, thereby improving the stability of synchronous transmission.

[0027] The support base 1 has two vertically connected lower support rollers 21 on its left and right sides. The two screw cylinders 4 are detachably and coaxially inserted with the two lower support rollers 21 and rotate synchronously. The bottom outer wall of the screw cylinder 4 is fixed with a support ring 22. Vertical compression springs 23 are inserted into the outside of the two screw cylinders 4 with a gap. The upper part of the screw cylinder 4 is detachably and axially inserted with the second bushing 18, and a limit bolt 24 is radially threaded. The limit bolt 24 is inserted through the second bushing 18. The two axial ends of the compression spring 23 abut against and tighten with the axial ends of the support ring 22 and the lower support rollers 21, respectively.

[0028] Furthermore, the elastic repulsive force of the compression spring 23 ensures that the screw cylinder 4 always tends to move downwards, thus guaranteeing the tight fit between the second bushing 18 and the lower support roller 21. This ensures the stability of the positions of the screw cylinder 4, the second bushing 18, and the driven bevel gear 8 relative to the support seat 1 and the driving bevel gear 11, thereby improving the stability of the synchronous transmission. Moreover, by disassembling the second bushing 18 and the limiting bolt 24, the screw cylinder 4 can be easily replaced when it wears out, ensuring the stability of the synchronous transmission after long-term use.

[0029] The lifting seat 5 has two vertical mounting cylinders 25 fixed on its left and right sides. The two mounting cylinders 25 are detachably axially connected to the screw rods 6. The bottom of the two screw rods 6 is radially fixed with pressure plates 26. The two mounting cylinders 25 are detachably coaxially threaded with nuts 27. The two nuts 27 are inserted into the screw rods 6 through gaps and together with the mounting cylinders 25, they clamp the pressure plates 26.

[0030] Furthermore, by removing the nut 27, the screw 6 can be easily replaced when it wears out, thus ensuring the stability of synchronous transmission after long-term use.

[0031] A guide mechanism 28 is installed between the lifting seat 5 and the support seat 1. The lifting seat 5 moves linearly up and down relative to the support seat 1 using the guide mechanism 28.

[0032] The guiding mechanism 28 includes a second mounting cylinder 29, a mounting column 30, a guide cylinder 31, a guide column 32, and a clamping part 33. The bottom end of the support base 1 is fixed with a vertical second mounting cylinder 29, and the top center of the lifting base 5 is fixed with a vertical mounting column 30. The bottom of the guide cylinder 31 is detachably coaxially threaded to the mounting column 30. The upper part of the guide cylinder 31 is axially slidably connected to the guide column 32. The guide column 32 is detachably coaxially threaded to the second mounting cylinder 29. The bottom of the guide cylinder 31 and the upper part of the guide column 32 are respectively provided with clamping parts 33 for easy clamping. The clamping parts 33 are known prior art, such as parallel clamping surfaces or hexagonal prism surfaces.

[0033] Furthermore, by setting a guide mechanism 28, the stability of the lifting seat 5 moving up and down is further improved. The guide cylinder 31 and guide column 32 can be disassembled by using a wrench or other tools to hold the clamping part 33, so that they can be easily replaced when worn, thus ensuring the stability of synchronous transmission after long-term use.

[0034] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A synchronous transmission structure for a printer assembly device, comprising a support base (1), a connecting base (2), a dual-axis servo motor (3), a screw barrel (4), a lifting base (5), a screw (6), a second bushing (18), a driven bevel gear (8), a first transmission shaft (9), a second transmission shaft (10), and a driving bevel gear (11), characterized in that: The support base (1) is fastened with connecting seats (2) on both the left and right sides, and a dual-axis servo motor (3) is installed in the middle. The support base (1) is equipped with screw cylinders (4) that can rotate along its virtual axis on both the left and right sides. A lifting seat (5) is provided below the support base (1). Vertical screws (6) are fastened to both the left and right sides of the lifting seat (5). The two screw cylinders (4) are respectively fastened with second bushings (18) on the same axis, and are respectively threaded to the two screws (6). The two second bushings (18) are respectively fixed with driven bevel gears (8) on the same axis. The two ends of the rotating shaft of the dual-axis servo motor (3) are respectively fastened with a first transmission shaft ( 9) and the second drive shaft (10), the first drive shaft (9) and the second drive shaft (10) are respectively coaxially fixed with active bevel gears (11), the two active bevel gears (11) mesh with the two driven bevel gears (8) respectively, when the dual-axis servo motor (3) rotates, it can drive the two screw barrels (4) to rotate synchronously through the first drive shaft (9), the second drive shaft (10), the active bevel gears (11) and the driven bevel gears (8), when the two screw barrels (4) rotate synchronously, they can move axially synchronously through the threaded connection with the screw (6), and the dual-axis servo motor (3) is electrically connected to the external controller and power supply.

2. The synchronous transmission structure of a printer assembly device according to claim 1, characterized in that: The upper part of the connecting seat (2) and the middle part of the lifting seat (5) are respectively provided with multiple vertical mounting holes (12). The connecting seat (2) is detachably fastened to the support seat (1) by fasteners. The middle part of the support seat (1) is detachably fastened with a buckle (13) by fasteners. The buckle (13) is detachably inserted into the dual-axis servo motor (3) and together with the support seat (1) fastens the dual-axis servo motor (3).

3. The synchronous transmission structure of a printer assembly equipment according to claim 2, characterized in that: The two connecting seats (2) are rotatably connected to the upper support rollers (14). The first transmission shaft (9) includes a first shaft body (15) and a first bushing (16). The second transmission shaft (10) includes a second shaft body (17) and a first bushing (16). The first shaft body (15) and the second shaft body (17) are detachably coaxially connected to the two axial ends of the rotating shaft of the dual-axis servo motor (3) and rotate synchronously. The first shaft body (15) and the second shaft body (17) are detachably coaxially connected to the two upper support rollers (14) and rotate synchronously. The two first bushings (16) are detachably coaxially connected to the first shaft body (15) and the second shaft body (17) and rotate synchronously. The two first bushings (16) are coaxially fixed to the active bevel gear (11).

4. The synchronous transmission structure of a printer assembly equipment according to claim 3, characterized in that: A compression spring (19) is inserted into the first shaft (15) with a gap, and a compression spring (20) is inserted into the second shaft (17) with a gap. The two ends of the first compression spring (19) and the two ends of the second compression spring (20) are respectively in abutting against the axial ends of the upper support roller (14) and the axial ends of the first bushing (16).

5. The synchronous transmission structure of a printer assembly device according to claim 4, characterized in that: The support base (1) is rotatably connected to two vertical lower support rollers (21) on its left and right sides. The two screw cylinders (4) are detachably and coaxially inserted with the two lower support rollers (21) to achieve synchronous rotation. The bottom outer wall of the screw cylinder (4) is fixed with a support ring (22). The two screw cylinders (4) are respectively inserted with vertical compression springs (23) with gaps. The upper part of the screw cylinder (4) is detachably and axially inserted with the second bushing (18), and a limit bolt (24) is radially threaded. The limit bolt (24) is inserted through the second bushing (18). The two axial ends of the compression spring (23) are respectively abutted and tightened with the axial ends of the support ring (22) and the lower support rollers (21).

6. The synchronous transmission structure of a printer assembly device according to claim 5, characterized in that: The lifting seat (5) has two vertical mounting cylinders (25) fixed on its left and right sides. The two mounting cylinders (25) are detachably axially connected to the screw (6). The bottom of the two screws (6) is radially fixed with pressure plates (26). The two mounting cylinders (25) are detachably coaxially threaded with nuts (27). The two nuts (27) are inserted into the screws (6) through gaps and together with the mounting cylinders (25) clamp the pressure plates (26).

7. The synchronous transmission structure of a printer assembly equipment according to claim 6, characterized in that: A guide mechanism (28) is installed between the lifting seat (5) and the support seat (1). The lifting seat (5) moves linearly up and down relative to the support seat (1) using the guide mechanism (28).

8. The synchronous transmission structure of a printer assembly equipment according to claim 7, characterized in that: The guiding mechanism (28) includes a second mounting cylinder (29), a mounting column (30), a guide cylinder (31), a guide column (32), and a clamping part (33). The bottom end of the support base (1) is fixed with a vertical second mounting cylinder (29), and the top center of the lifting base (5) is fixed with a vertical mounting column (30). The bottom of the guide cylinder (31) is detachably connected to the mounting column (30) with a coaxial thread. The upper part of the guide cylinder (31) is axially slidably connected to the guide column (32). The guide column (32) is detachably connected to the second mounting cylinder (29) with a coaxial thread. The bottom of the guide cylinder (31) and the upper part of the guide column (32) are respectively provided with clamping parts (33) for easy clamping.

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