Cutting device for plastic film

Abstract

The utility model discloses a plastic film cutting device which comprises a bearing support, the top of the bearing support is fixedly connected with a fixed cutting plate, the top of the bearing support is fixedly connected with two mounting plates, the side wall of one mounting plate is fixedly connected with two mounting motors, and the side wall of the other mounting plate is fixedly connected with a cutting device. And the output end of the mounting motor is fixedly connected with a mounting roller. According to the device, the adjusting motor drives the adjusting push plate and the adjusting rotating shaft to rotate, then the adjusting rotating shaft slides in the movable concentric-square-shaped plate, the movable concentric-square-shaped plate drives the movable push plate to move in the direction of the movable support, and then the movable push plate also drives the movable concave part to move downwards; according to the cutting device, the movable rollers on the movable concave parts push materials to be in contact and pressed with the corresponding conveying rollers, and the materials are adjusted and cut through the fixed cutting knives, so that the tightness of a film and a pressing structure for cutting can be controlled, deflection of the film materials during cutting is reduced, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic film production technology, and in particular to a plastic film cutting device. Background Technology

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins. It is used for packaging and as a coating layer. Plastic packaging and plastic packaging products are taking up an increasingly larger share of the market, especially composite plastic flexible packaging, which is widely used in food, medicine, chemical and other fields. At the same time, plastic film needs to be cut during production. Traditional cutting equipment cannot control the tightness of the film and the clamping structure during cutting, resulting in an uneven cut edge and the film is prone to skew, which affects subsequent processing and reduces the effectiveness of use. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a plastic film cutting device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a plastic film cutting device, comprising a receiving bracket, a fixed cutting plate fixedly connected to the top of the receiving bracket, two mounting plates fixedly connected to the top of the receiving bracket, two mounting motors fixedly connected to the side wall of one of the mounting plates, mounting rollers fixedly connected to the output end of the mounting motors, the end of the mounting rollers passing through one of the mounting plates and rotatably connected to the other mounting plate, two symmetrical transmission rollers rotatably connected between the two sides of the inner wall of the receiving bracket, and two symmetrical movable components connected to the top of the receiving bracket;

[0005] The top of the receiving bracket is fixedly connected to two symmetrical connecting supports, and a connecting rod is rotatably connected between the two connecting supports. A connecting roller is rotatably sleeved on the outer wall of the connecting rod. Connecting brackets are fixedly connected to the top and bottom of the connecting rod. A guide roller is rotatably sleeved on the outer wall of the connecting bracket. One end of the connecting rod passes through one of the connecting supports and is fixedly connected to a first synchronous pulley. A drive assembly is connected to the side wall of one of the connecting supports.

[0006] The movable component includes a movable bracket fixedly connected to the top of the receiving bracket. A movable push plate is provided through the top of the movable bracket. Movable recesses and movable U-shaped plates are fixedly connected to both ends of the movable push plate, and the movable push plate serves to push the movable recesses to move along the direction on the movable bracket.

[0007] Movable rollers are rotatably connected between the two sides of the inner wall of the movable concave part. An adjustable support plate is fixedly connected to the top of the movable bracket. An adjustable motor is fixedly connected to the surface of the adjustable support plate. The adjustable motor drives the adjustable push plate to rotate.

[0008] The output shaft of the adjusting motor passes through the adjusting support plate and is fixedly connected to the adjusting push plate. The back of the adjusting push plate is rotatably connected to the adjusting shaft, which is slidably connected to the inside of the movable U-shaped plate. The adjusting push plate drives the adjusting shaft to slide inside the movable U-shaped plate.

[0009] The drive assembly includes a drive L-shaped plate fixedly connected to the side wall of the connecting support. A drive motor is fixedly connected to the side wall of the drive L-shaped plate, and a drive rod is fixedly connected to the output end of the drive motor. The drive motor drives the drive rod to rotate.

[0010] The end of the drive rod passes through the drive L-shaped plate and is fixedly connected to a second synchronous pulley. The second synchronous pulley meshes with the first synchronous pulley through a synchronous toothed belt, and the synchronous toothed belt on the second synchronous pulley drives the connecting rod on the first synchronous pulley to rotate.

[0011] A fixed bracket is fixedly connected to the top of the receiving bracket, and a fixed cylinder is fixedly connected to the top of the fixed bracket. The piston end of the fixed cylinder passes through the fixed bracket and is fixedly connected to a fixed cutting blade. The fixed cylinder pushes the fixed cutting blade to move.

[0012] This utility model has the following beneficial effects:

[0013] The drive assembly enables the drive motor to rotate the drive rod and the second synchronous pulley. The second synchronous pulley then drives the first synchronous pulley and the connecting bracket on the connecting rod to rotate via a synchronous toothed belt. This causes the connecting roller on the connecting rod and the guide roller on the connecting bracket to rotate, controlling the material tension. The movable assembly enables the adjustment motor to rotate the adjustment push plate and the adjustment shaft. The adjustment shaft then slides inside the movable return plate, causing the movable return plate to move the movable push plate along the direction of the movable bracket. The movable push plate then moves the movable recess downwards, causing the movable roller on the movable recess to push the material into contact with its corresponding transmission roller and press it firmly. The material is then adjusted and cut using a fixed cutting blade. This allows for control of the film tension and the pressing structure during cutting, reducing skewing during film material cutting and improving the overall performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a plastic film cutting device proposed in this utility model;

[0015] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0016] Figure 3 for Figure 1 Enlarged structural diagram at point B.

[0017] Legend: 1. Support bracket; 2. Mounting plate; 3. Mounting motor; 4. Mounting roller; 5. Fixed bracket; 6. Fixed cylinder; 7. Fixed cutting blade; 8. Movable bracket; 9. Movable push plate; 10. Movable recess; 11. Movable return plate; 12. Movable roller; 13. Adjustable support plate; 14. Adjustable motor; 15. Adjustable push plate; 16. Adjustable rotating shaft; 17. Connecting support; 18. Connecting rod; 19. Connecting bracket; 20. First synchronous pulley; 21. Drive L-shaped plate; 22. Drive motor; 23. Second synchronous pulley; 24. Synchronous toothed belt. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1-3 This utility model provides a plastic film cutting device, including a receiving bracket 1. A fixed cutting plate is fixedly connected to the top of the receiving bracket 1. Two mounting plates 2 are fixedly connected to the top of the receiving bracket 1. Two mounting motors 3 are fixedly connected to the side wall of one of the mounting plates 2. Mounting rollers 4 are fixedly connected to the output end of the mounting motors 3. The end of the mounting rollers 4 passes through one of the mounting plates 2 and is rotatably connected to the other mounting plate 2. Two symmetrical transmission rollers are rotatably connected between the two sides of the inner wall of the receiving bracket 1. Two symmetrical movable components are connected to the top of the receiving bracket 1. The movable components are used to push the material for pressing. The movable components include components connected to the top of the receiving bracket 1. A movable support 8 is fixedly connected. A movable push plate 9 is installed through the top of the movable support 8. Movable recesses 10 and movable loop plates 11 are fixedly connected to both ends of the movable push plate 9, respectively. Movable rollers 12 are rotatably connected between the two sides of the inner wall of the movable recesses 10. An adjusting support plate 13 is fixedly connected to the top of the movable support 8. An adjusting motor 14 is fixedly connected to the surface of the adjusting support plate 13. The output shaft of the adjusting motor 14 passes through the adjusting support plate 13 and is fixedly connected to the adjusting push plate 15. An adjusting shaft 16 is rotatably connected to the back of the adjusting push plate 15. The adjusting shaft 16 is slidably connected to the inside of the movable loop plate 11. The adjusting motor 14 drives the adjusting push plate 15 to rotate.

[0020] A fixed bracket 5 is fixedly connected to the top of the receiving bracket 1. A fixed cylinder 6 is fixedly connected to the top of the fixed bracket 5. The piston end of the fixed cylinder 6 passes through the fixed bracket 5 and is fixedly connected to a fixed cutting blade 7. Two symmetrical connecting supports 17 are fixedly connected to the top of the receiving bracket 1. A connecting rod 18 is rotatably connected between the two connecting supports 17. A connecting roller is rotatably sleeved on the outer wall of the connecting rod 18. Connecting brackets 19 are fixedly connected to the top and bottom of the connecting rod 18. Guide rollers are rotatably sleeved on the outer wall of the connecting bracket 19. One end of the connecting rod 18 passes through one of the connecting supports 1. 7 is fixedly connected to a first synchronous pulley 20. A drive assembly is connected to the side wall of a connecting support 17. The drive assembly includes a drive L-shaped plate 21 fixedly connected to the side wall of the connecting support 17. A drive motor 22 is fixedly connected to the side wall of the drive L-shaped plate 21. A drive rod is fixedly connected to the output end of the drive motor 22. The end of the drive rod passes through the drive L-shaped plate 21 and is fixedly connected to a second synchronous pulley 23. The second synchronous pulley 23 meshes with the first synchronous pulley 20 through a synchronous toothed belt 24. The drive assembly enables the first synchronous pulley 20 to rotate.

[0021] Working principle: In use, firstly, the material from the external unwinding equipment passes under the guide roller on one of the connecting brackets 19, then between the guide roller and the connecting roller on the connecting rod 18, then above the connecting roller, then between the connecting roller and the guide roller on another connecting bracket 19, then between one of the movable rollers 12 and the transfer roller, then between the fixed cutter 7 and the fixed cutting plate, then between the other movable roller 12 and the transfer roller, and then between the two mounting rollers 4. At the same time, the two mounting motors 3 are started, which drive the mounting rollers 4 to rotate. The two mounting rollers 4 rotate in opposite directions, thus assisting in the material transfer.

[0022] Then, the drive motor 22 on the L-shaped plate 21 is started, which drives the drive rod and the second synchronous pulley 23 to rotate. Then, the second synchronous pulley 23 drives the first synchronous pulley 20 to rotate through the synchronous toothed belt 24. Then, the first synchronous pulley 20 also drives the connecting bracket 19 on the connecting rod 18 to rotate, so that the connecting roller on the connecting rod 18 and the guide roller on the connecting bracket 19 also rotate and control the tightness of the material.

[0023] Then, the adjustment motor 14 on the adjustment support plate 13 is started, which drives the adjustment push plate 15 and the adjustment shaft 16 to rotate. Then, the adjustment shaft 16 slides inside the movable loop plate 11, causing the movable loop plate 11 to drive the movable push plate 9 to move along the direction on the movable bracket 8. Then, the movable push plate 9 also drives the movable recess 10 to move downward, so that the movable roller 12 on the movable recess 10 pushes the material to contact and press it with its corresponding transmission roller.

[0024] Next, the fixed cylinder 6 is activated, which pushes the fixed cutting blade 7 downward. Then, the fixed cutting blade 7 cooperates with the fixed cutting plate to adjust and cut the material.

[0025] 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 plastic film cutting device, comprising a receiving bracket (1), characterized in that: The top of the receiving bracket (1) is fixedly connected to a fixed cutting plate, and the top of the receiving bracket (1) is fixedly connected to two mounting plates (2). Two mounting motors (3) are fixedly connected to the side wall of one of the mounting plates (2). The output end of the mounting motor (3) is fixedly connected to a mounting roller (4). The end of the mounting roller (4) passes through one of the mounting plates (2) and is rotatably connected to the other mounting plate (2). Two symmetrical transmission rollers are rotatably connected between the two sides of the inner wall of the receiving bracket (1). The top of the receiving bracket (1) is connected to two symmetrical movable components. The top of the receiving bracket (1) is fixedly connected to two symmetrical connecting supports (17), and a connecting rod (18) is rotatably connected between the two connecting supports (17). A connecting roller is rotatably sleeved on the outer wall of the connecting rod (18). A connecting bracket (19) is fixedly connected to the top and bottom of the connecting rod (18). A guide roller is rotatably sleeved on the outer wall of the connecting bracket (19). One end of the connecting rod (18) passes through one of the connecting supports (17) and is fixedly connected to a first synchronous pulley (20). A drive assembly is connected to the side wall of one of the connecting supports (17).

2. The plastic film cutting device according to claim 1, characterized in that: The movable component includes a movable bracket (8) fixedly connected to the top of the receiving bracket (1), and a movable push plate (9) is provided through the top of the movable bracket (8). Movable recesses (10) and movable spiral plates (11) are fixedly connected to both ends of the movable push plate (9).

3. The plastic film cutting device according to claim 2, characterized in that: A movable roller (12) is rotatably connected between the two sides of the inner wall of the movable recess (10), and an adjusting support plate (13) is fixedly connected to the top of the movable bracket (8), and an adjusting motor (14) is fixedly connected to the surface of the adjusting support plate (13).

4. The plastic film cutting device according to claim 3, characterized in that: The output shaft of the regulating motor (14) passes through the regulating support plate (13) and is fixedly connected to the regulating push plate (15). The back of the regulating push plate (15) is rotatably connected to the regulating shaft (16), and the regulating shaft (16) is slidably connected to the movable spiral plate (11).

5. The plastic film cutting device according to claim 1, characterized in that: The drive assembly includes a drive L-shaped plate (21) fixedly connected to the side wall of the connecting support (17), a drive motor (22) fixedly connected to the side wall of the drive L-shaped plate (21), and a drive rod fixedly connected to the output end of the drive motor (22).

6. The plastic film cutting device according to claim 5, characterized in that: The end of the drive rod passes through the drive L-shaped plate (21) and is fixedly connected to the second synchronous pulley (23). The second synchronous pulley (23) meshes with the first synchronous pulley (20) through the synchronous toothed belt (24).

7. The plastic film cutting device according to claim 1, characterized in that: The top of the receiving bracket (1) is fixedly connected to a fixed bracket (5), and the top of the fixed bracket (5) is fixedly connected to a fixed cylinder (6). The piston end of the fixed cylinder (6) passes through the fixed bracket (5) and is fixedly connected to a fixed cutting blade (7).

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