Double-arm winding mechanism of flexographic printing machine

Abstract

The utility model relates to the technical field of printing machine rolling, and discloses a flexographic printing machine double-arm rolling mechanism which comprises a bottom plate, two supporting frames are fixedly connected to the upper portion of the bottom plate, feeding rollers are rotationally connected to the rear sides of the interiors of the supporting frames, and sliding grooves are formed in the front sides and the rear sides of the interiors of the supporting frames. A through groove is formed in the bottom of the sliding groove, a clamping block is slidably connected into the sliding groove, a pulling assembly is fixedly connected to the bottom of the clamping block, the pulling assembly is used for moving the clamping block, a winding roller is rotatably connected between the clamping block and the sliding groove, and a movable ring is in threaded connection with one end of the winding roller. And the outer part of the other side of the winding roller is fixedly connected with a fixing ring. According to the device, the wind-up roller can be quickly and conveniently disassembled and replaced without shutdown, the shutdown time is saved, the working efficiency is improved, automatic anti-falling treatment is carried out on materials, and it is ensured that the materials are tightly wound on the wind-up roller.

Description

Technical Field

[0001] This utility model relates to the field of printing press winding technology, and in particular to a double-arm winding mechanism for a flexographic printing press. Background Technology

[0002] Flexographic printing presses are widely used in label printing, packaging printing, and other fields because they can efficiently and stably print on various materials such as films, paper, and cardboard, making them particularly suitable for high-volume production. One of the key components of a flexographic printing press is the winding system, especially in high-speed, high-precision production, where winding quality directly affects the quality of the final product. To improve the efficiency, accuracy, and stability of winding, a double-arm winding mechanism in flexographic printing presses has emerged and gradually become an important part of modern printing presses.

[0003] The primary function of existing flexographic printing presses is to accurately print patterns onto the substrate. After printing, the substrate is wound up by a rewinding system. However, when the roll is nearly full, the rewinding machine must be stopped to replace the roll, which leads to production interruptions and reduces efficiency. Especially during high-speed operation, the downtime caused by roll replacement becomes a bottleneck affecting overall production efficiency. Furthermore, the replacement mechanism is relatively complex and cannot be quickly disassembled and replaced. Therefore, a dual-arm rewinding mechanism for flexographic printing presses is proposed to solve these problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a double-arm winding mechanism for a flexographic printing machine, which aims to improve the problem that in the prior art, when the roll is close to full roll, the winding machine must be stopped to replace the roll, which will lead to production interruption, reduce production efficiency, and the replacement structure is relatively complicated and cannot be quickly disassembled and replaced.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a double-arm winding mechanism for a flexographic printing machine, comprising a base plate, two support frames fixedly connected to the upper part of the base plate, a feeding roller rotatably connected to the rear side of the inner side of the support frame, sliding grooves on both the front and rear sides of the inner side of the support frame, a through groove at the bottom of the sliding groove, a clamping block slidably connected inside the sliding groove, a pulling component fixedly connected to the bottom of the clamping block, the pulling component being used to move the clamping block, a winding roller rotatably connected between the clamping block and the sliding groove, a movable ring threadedly connected to one end of the winding roller, and a fixed ring fixedly connected to the outer side of the other side of the winding roller.

[0006] As a further description of the above technical solution:

[0007] Two electric actuators are fixedly connected to the upper left and right sides of the base plate. A connecting block is fixedly connected to the output end of the electric actuator. A gear is fixedly connected to one side of the connecting block. A rack is meshed with the gear. A connecting frame is fixedly connected to the upper part of the rack. A stop plate is fixedly connected to the adjacent side of the connecting frame.

[0008] As a further description of the above technical solution:

[0009] The pulling assembly includes a pulling block, which is fixedly connected to the bottom of the clamping block, and a pulling rod is fixedly connected to one side of the pulling block.

[0010] As a further description of the above technical solution:

[0011] The bottom of the pull block is fixedly connected to a telescopic rod, which is fixedly connected to the bottom of the inner wall of the through groove, and a spring is sleeved on the outside of the telescopic rod.

[0012] As a further description of the above technical solution:

[0013] One end of the spring is fixedly connected to the bottom of the inner wall of the through groove, and the other end of the spring is fixedly connected to the bottom of the pull block.

[0014] As a further description of the above technical solution:

[0015] A motor is fixedly connected to one side of the support frame on the right, and the output end of the motor is rotatably connected inside the fixed ring.

[0016] As a further description of the above technical solution:

[0017] The support frame has movable slots on both the front and back sides of the inner side, and the rack and connecting frame are slidably connected inside the movable slots.

[0018] As a further description of the above technical solution:

[0019] The clamping block, pulling block, and pulling rod are all slidably connected inside the through groove.

[0020] This utility model has the following beneficial effects:

[0021] In this invention, after one take-up roller is fully wound, it is switched to the other take-up roller for winding. Then, by pulling the pull rod, the clamping block is moved downward into the through groove under the drive of the pull block, and the telescopic rod and spring are squeezed. Then, the movable ring is rotated to separate from the take-up roller, and the take-up roller can be pulled to the left to separate the fixed ring from the motor. Then, it is pulled to the side of the slide groove opening to remove the take-up roller. This realizes quick and convenient disassembly and replacement of the take-up roller without stopping the machine, saving downtime and improving work efficiency.

[0022] In this invention, when the take-up roller is continuously winding, the electric push rod automatically operates according to the controller's settings, causing it to drive the gear to rotate on the rack via the connecting block. This causes the rack to slide inside the moving groove, which in turn causes the connecting frame to move the abutment plate, holding the material against it to prevent it from falling off the take-up roller. This achieves automatic anti-detachment treatment of the material, ensuring that the material is tightly wound on the take-up roller. Attached Figure Description

[0023] Figure 1 A perspective view of a double-arm winding mechanism for a flexographic printing machine proposed in this utility model;

[0024] Figure 2 This utility model provides a schematic diagram of the installation and disassembly structure of the winding roller of a double-arm winding mechanism for a flexographic printing machine.

[0025] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Base plate; 2. Support frame; 3. Feed roller; 4. Motor; 5. Pull rod; 6. Pull block; 7. Clamping block; 8. Through groove; 9. Telescopic rod; 10. Spring; 11. Slide groove; 12. Take-up roller; 13. Fixed ring; 14. Moving ring; 15. Support plate; 16. Connecting frame; 17. Moving groove; 18. Electric push rod; 19. Connecting block; 20. Gear; 21. Rack. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1 , Figure 2This utility model provides an embodiment of a double-arm winding mechanism for a flexographic printing machine, including a base plate 1. Two support frames 2 are fixedly connected to the upper part of the base plate 1. A feeding roller 3 is rotatably connected to the rear side of the inside of the support frame 2. Slide grooves 11 are provided on both the front and rear sides of the inside of the support frame 2. A through groove 8 is provided at the bottom of the slide groove 11. A clamping block 7 is slidably connected inside the slide groove 11. A pulling component is fixedly connected to the bottom of the clamping block 7. The pulling component is used to move the clamping block 7. A winding roller 12 is rotatably connected between the clamping block 7 and the slide groove 11. A movable ring 14 is threadedly connected to one end of the winding roller 12. A fixed ring 13 is fixedly connected to the other side of the winding roller 12 to allow for quick disassembly of the winding roller 12. A motor 4 is fixedly connected to one side of the right support frame 2. The output end of the motor 4 is rotatably connected to the inside of the fixed ring 13 so that the motor 4 drives the winding roller 12 to wind up the material.

[0030] The pulling assembly includes a pulling block 6, which is fixedly connected to the bottom of the clamping block 7. A pulling rod 5 is fixedly connected to one side of the pulling block 6, and a telescopic rod 9 is fixedly connected to the bottom of the pulling block 6. The telescopic rod 9 is fixedly connected to the bottom of the inner wall of the through groove 8. A spring 10 is sleeved on the outside of the telescopic rod 9 so that it no longer obstructs the winding roller 12. The spring 10 can be disassembled and replaced. One end of the spring 10 is fixedly connected to the bottom of the inner wall of the through groove 8, and the other end of the spring 10 is fixedly connected to the bottom of the pulling block 6.

[0031] When one take-up roller 12 is fully wound, it is switched to the other take-up roller 12 for winding. Then, by pulling the pull rod 5, the clamping block 7 is moved downward into the through groove 8 by the pull block 6, and the telescopic rod 9 and spring 10 are squeezed to generate a rebound force. Then, the movable ring 14 is rotated to separate from the take-up roller 12, and the take-up roller 12 can be pulled to the left to separate the fixed ring 13 from the motor 4. Then, it is pulled to the opening side of the slide groove 11 to remove the take-up roller 12. This allows for quick and convenient disassembly and replacement of the take-up roller 12 without stopping the machine, saving downtime and improving work efficiency.

[0032] Reference Figure 1 , Figure 3 Two electric push rods 18 are fixedly connected to the upper left and right sides of the base plate 1. A connecting block 19 is fixedly connected to the output end of the electric push rod 18. A gear 20 is fixedly connected to one side of the connecting block 19. A rack 21 is meshed with the gear 20. A connecting frame 16 is fixedly connected to the upper part of the rack 21. A stop plate 15 is fixedly connected to the adjacent side of the connecting frame 16. Moving grooves 17 are opened at the front and back of the adjacent side inside the support frame 2 to hold the material and prevent it from falling off. The rack 21 and the connecting frame 16 are slidably connected inside the moving grooves 17. The clamping block 7, the pulling block 6 and the pulling rod 5 are slidably connected inside the through groove 8.

[0033] When the take-up roller 12 is continuously winding, the electric push rod 18 automatically operates according to the controller settings, causing it to drive the gear 20 via the connecting block 19, causing it to rotate on the rack 21. The rack 21 slides inside the moving groove 17, causing the connecting frame 16 to slide inside the moving groove 17, and causing the abutment plate 15 to move, pressing the material against it to prevent it from falling off the take-up roller 12. This automatically prevents the material from falling off, ensuring that the material is tightly wound on the take-up roller 12.

[0034] Working principle: When one side of the take-up roller 12 is fully wound, it is switched to the other side of the take-up roller 12 for winding. Then, by pulling the pull rod 5, the clamping block 7 is moved downward into the through groove 8 under the drive of the pull block 6, and the telescopic rod 9 and spring 10 are squeezed. Then the movable ring 14 is rotated to separate from the take-up roller 12, and the take-up roller 12 can be pulled to the left to separate the fixed ring 13 from the motor 4. Then it is pulled to the opening side of the slide groove 11 to remove the take-up roller 12. This realizes the quick and convenient disassembly and replacement of the take-up roller 12 without stopping the machine, saving downtime and improving work efficiency.

[0035] When the take-up roller 12 is continuously winding, the electric push rod 18 operates automatically according to the controller settings, causing it to drive the gear 20 to rotate on the rack 21 via the connecting block 19. This causes the rack 21 to slide inside the moving groove 17, which in turn causes the connecting frame 16 to move the abutment plate 15, holding the material against it to prevent it from falling off the take-up roller 12. This achieves automatic anti-detachment treatment of the material, ensuring that the material is tightly wound on the take-up roller 12.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-arm winding mechanism for a flexographic printing press, comprising a base plate (1), characterized in that: Two support frames (2) are fixedly connected to the upper part of the base plate (1). A feeding roller (3) is rotatably connected to the rear side of the inside of the support frame (2). Slide grooves (11) are provided on both the front and rear sides of the inside of the support frame (2). A through groove (8) is provided at the bottom of the slide groove (11). A clamping block (7) is slidably connected inside the slide groove (11). A pulling component is fixedly connected to the bottom of the clamping block (7). The pulling component is used to move the clamping block (7). A take-up roller (12) is rotatably connected between the clamping block (7) and the slide groove (11). A movable ring (14) is threaded to one end of the take-up roller (12). A fixed ring (13) is fixedly connected to the outside of the other side of the take-up roller (12).

2. The double-arm winding mechanism for a flexographic printing machine according to claim 1, characterized in that: Two electric actuators (18) are fixedly connected to the upper left and right sides of the base plate (1). A connecting block (19) is fixedly connected to the output end of the electric actuator (18). A gear (20) is fixedly connected to one side of the connecting block (19). A rack (21) is meshed with the gear (20). A connecting frame (16) is fixedly connected to the upper part of the rack (21). A stop plate (15) is fixedly connected to the side of the connecting frame (16) that is close to it.

3. The double-arm winding mechanism for a flexographic printing machine according to claim 1, characterized in that: The pulling assembly includes a pulling block (6), which is fixedly connected to the bottom of the clamping block (7), and a pulling rod (5) is fixedly connected to one side of the pulling block (6).

4. The double-arm winding mechanism for a flexographic printing machine according to claim 3, characterized in that: The bottom of the pull block (6) is fixedly connected to a telescopic rod (9), which is fixedly connected to the bottom of the inner wall of the through groove (8), and a spring (10) is sleeved on the outside of the telescopic rod (9).

5. The double-arm winding mechanism for a flexographic printing machine according to claim 4, characterized in that: One end of the spring (10) is fixedly connected to the bottom of the inner wall of the through groove (8), and the other end of the spring (10) is fixedly connected to the bottom of the pull block (6).

6. The double-arm winding mechanism for a flexographic printing machine according to claim 1, characterized in that: A motor (4) is fixedly connected to one side of the support frame (2) on the right side, and the output end of the motor (4) is rotatably connected inside the fixed ring (13).

7. The double-arm winding mechanism for a flexographic printing machine according to claim 2, characterized in that: The support frame (2) has movable grooves (17) on both the front and back sides of the inner side, and the rack (21) and the connecting frame (16) are slidably connected inside the movable grooves (17).

8. The double-arm winding mechanism for a flexographic printing machine according to claim 1, characterized in that: The clamping block (7), the pulling block (6), and the pulling rod (5) are all slidably connected inside the through groove (8).

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