PVC winding film cutting device

Abstract

The application relates to the technical field of PVC film processing, and discloses a PVC winding film cutting equipment, which comprises a base, two vertical plates are fixedly connected to the upper end of the base in a symmetrical mode, conveying rollers are rotatably installed between the two vertical plates in a symmetrical mode, a film is arranged on the two conveying rollers, a movable plate is slidably installed between the two vertical plates, a cutter is fixedly installed at the lower end of the movable plate, a lifting assembly for driving the movable plate to move in the vertical direction is installed on the vertical plate, a rotating shaft is rotatably installed between the two vertical plates in a symmetrical mode, two cams are fixedly sleeved on the rotating shaft in a symmetrical mode, a torsional spring is fixedly connected to the side wall of the vertical plate, and the other end of the torsional spring is fixedly connected to the rotating shaft. The technical scheme of the application can automatically fix and stretch the film when the film is cut through the cooperation of the conveying rollers, the movable plate, the cutter, the cams, the torsional spring and the abutting plate, so that the film is in a taut state, the cutter can conveniently cut the film, and the cutting effect is improved.

Description

Technical Field

[0001] This application relates to the field of PVC film processing technology, specifically to a PVC winding film cutting device. Background Technology

[0002] PVC film is a plastic film made primarily from polyvinyl chloride (PVC) resin, with the addition of plasticizers, stabilizers, lubricants, and other additives, through processes such as calendering, blow molding, or casting. It is the world's second most used synthetic material, widely used in packaging, building materials, agriculture, and other fields due to its low cost and diverse properties. During processing, PVC film requires cutting equipment for preparation.

[0003] Currently, existing cutting equipment for PVC wrapping film generally cannot fix the film during operation. Therefore, when the cutter cuts the film, the film is prone to deformation, resulting in wrinkles at the cut and affecting the cutting effect. Utility Model Content

[0004] The purpose of this application is to provide a PVC wrapping film cutting device that solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This application provides a PVC wrapping film cutting device, including a base. Two vertical plates are symmetrically fixedly connected to the upper end of the base. Conveying rollers are symmetrically rotatably mounted between the two vertical plates. A film is disposed on both conveying rollers. A movable plate is slidably mounted between the two vertical plates. A cutter is fixedly mounted at the lower end of the movable plate. A lifting assembly for driving the movable plate to move vertically is mounted on the vertical plate. A rotating shaft is symmetrically rotatably mounted between the two vertical plates. Two cams are symmetrically fixedly sleeved on the rotating shaft. A torsion spring is fixedly connected to the side wall of one side of each vertical plate. The other end of the torsion spring is fixedly connected to the rotating shaft and sleeved on the rotating shaft. A stop plate is fixedly sleeved on the rotating shaft and abuts against the movable plate. A support plate is slidably connected between the two vertical plates, and the film abuts against the upper end of the support plate.

[0006] By adopting the above technical solution, during use, the lifting assembly moves the movable plate downwards. The movement of the movable plate drives the cutter to move. When the cutter contacts the film, it cuts the film. As the movable plate moves downwards, the torsion spring resets, driving the rotating shaft to rotate. The rotation of the rotating shaft drives the cams to rotate, and the two sets of cams squeeze the film to both sides, keeping the film taut. At the same time, the cams and support plate fix the film, thus facilitating the cutter's cutting of the film. Through the above structure, the film can be automatically fixed and stretched during cutting, keeping the film taut and facilitating the cutter's cutting of the film, thereby improving the cutting effect.

[0007] Optionally, the lifting assembly includes a top plate fixedly connected to the upper ends of the two vertical plates, and a cylinder is fixedly installed on the upper end of the top plate, with the piston end of the cylinder fixedly connected to the movable plate.

[0008] By adopting the above technical solution, the cylinder is activated, which in turn drives the movable plate to move vertically.

[0009] Optionally, a bidirectional lead screw is rotatably connected to one side wall of the vertical plate, and the bidirectional lead screw is helically connected to two support plates.

[0010] By adopting the above technical solution, when it is necessary to adjust the distance between the two support plates, the double-acting screw is rotated, and the double-acting screw will move the two support plates through the thread action, thereby adjusting the distance between the two support plates, which facilitates the stretching and fixing of different elastic films.

[0011] Optionally, a rotating block is fixedly connected to one end of the bidirectional lead screw.

[0012] By adopting the above technical solution, it is convenient for staff to rotate the bidirectional lead screw.

[0013] Optionally, a guide rod is fixedly connected to one side wall of the vertical plate, the guide rod passes through the support plate, and the support plate is slidably connected to the guide rod.

[0014] By adopting the above technical solution, the support plate is limited to prevent it from rotating.

[0015] Optionally, a drive motor is fixedly installed on the side wall of one side of the vertical plate, and the output end of the drive motor is connected to the corresponding conveying roller through a coupling.

[0016] By adopting the above technical solution, the conveying roller is rotated by a drive motor to convey the film.

[0017] Optionally, the torsion spring is in a deformed state.

[0018] By adopting the above technical solution, the rotating shaft is made to rotate.

[0019] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows: The technical solution of this application, through the cooperation of structures such as a base, vertical plate, conveying roller, movable plate, cutter, rotating shaft, cam, torsion spring and stop plate, can automatically fix and stretch the film during film cutting, so that the film is in a taut state, which facilitates the cutter to cut the film and improves the cutting effect.

[0020] The technical solution of this application sets up a structure such as a support plate, a two-way lead screw and a guide rod. When it is necessary to adjust the distance between the two support plates, the two-way lead screw is rotated. The two-way lead screw will move the two support plates through the thread action, thereby adjusting the distance between the two support plates, which facilitates the stretching and fixing of different elastic films. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of a PVC wrapping film cutting device according to this application; Figure 2 This is a schematic diagram of the cam structure in a PVC wrapping film cutting device according to this application; Figure 3 This is a partial side view of a PVC wrapping film cutting device according to this application; Figure 4 This is a top view of a PVC wrapping film cutting device according to this application.

[0022] In the diagram: 1. Base; 2. Vertical plate; 3. Conveyor roller; 4. Movable plate; 5. Cutter; 6. Rotating shaft; 7. Cam; 8. Torsion spring; 9. Support plate; 10. Support plate; 11. Cylinder; 12. Double-acting lead screw; 13. Guide rod; 14. Drive motor. Detailed Implementation

[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This application provides a technical solution: a PVC wrapping film cutting device, including a base 1, two vertical plates 2 symmetrically fixedly connected to the upper end of the base 1, conveying rollers 3 symmetrically rotatably mounted between the two vertical plates 2, film being disposed on both conveying rollers 3, a movable plate 4 slidably mounted between the two vertical plates 2, a cutter 5 fixedly mounted at the lower end of the movable plate 4, a lifting component for driving the movable plate 4 to move vertically mounted on the vertical plates 2, a rotating shaft 6 symmetrically rotatably mounted between the two vertical plates 2, two cams 7 symmetrically fixedly sleeved on the rotating shaft 6, a torsion spring 8 fixedly connected to the side wall of one side of the vertical plate 2, the other end of the torsion spring 8 fixedly connected to the rotating shaft 6 and sleeved on the rotating shaft 6, a stop plate 9 fixedly sleeved on the rotating shaft 6 and abutting the stop plate 9 against the movable plate 4, a support plate 10 slidably connected between the two vertical plates 2, and the film abutting against the upper end of the support plate 10.

[0025] In the technical solution of this application, during use, the movable plate 4 is moved downward by the lifting component. The movement of the movable plate 4 drives the cutter 5 to move. When the cutter 5 contacts the film, it cuts the film. When the movable plate 4 moves downward, the torsion spring 8 resets, and the torsion spring 8 drives the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 drives the cam 7 to rotate. The two sets of cams 7 squeeze the film to both sides, keeping the film in a taut state. At the same time, the cams 7 and the support plate 10 fix the film, thus facilitating the cutter 5 to cut the film. Through the above structure, the film can be automatically fixed and stretched during cutting, keeping the film in a taut state, facilitating the cutter 5 to cut the film, and improving the cutting effect.

[0026] In the technical solution of this application, the lifting assembly includes a top plate fixedly connected to the upper ends of the two vertical plates 2. A cylinder 11 is fixedly installed on the upper end of the top plate. The piston end of the cylinder 11 is fixedly connected to the movable plate 4. When the cylinder 11 is started, the cylinder 11 will drive the movable plate 4 to move vertically.

[0027] In the technical solution of this application, a bidirectional lead screw 12 is rotatably connected to the side wall of one side of the vertical plate 2. The bidirectional lead screw 12 is screw-driven to two support plates 10. When it is necessary to adjust the distance between the two support plates 10, the bidirectional lead screw 12 is rotated. The bidirectional lead screw 12 will move the two support plates 10 through the thread action, thereby adjusting the distance between the two support plates 10, which is convenient for stretching and fixing different elastic films.

[0028] In the technical solution of this application, a rotating block is fixedly connected to one end of the bidirectional lead screw 12, which facilitates the operator to rotate the bidirectional lead screw 12.

[0029] In the technical solution of this application, a guide rod 13 is fixedly connected to the side wall of one side of the vertical plate 2. The guide rod 13 passes through the support plate 10 and is slidably connected to the guide rod 13 to limit the support plate 10 and prevent the support plate 10 from rotating.

[0030] In the technical solution of this application, a drive motor 14 is fixedly installed on the side wall of one side of the vertical plate 2. The output end of the drive motor 14 is connected to the corresponding conveying roller 3 through a coupling. The drive motor 14 is used to make the conveying roller 3 rotate and convey the film.

[0031] In the technical solution of this application, the torsion spring 8 is in a deformed state, causing the rotating shaft 6 to rotate.

[0032] In use, the cylinder 11 moves the movable plate 4 downward, which in turn drives the cutter 5 to move. When the cutter 5 comes into contact with the film, it cuts the film. When the movable plate 4 moves downward, the torsion spring 8 returns to its original position, which in turn drives the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 drives the cam 7 to rotate. The two sets of cams 7 squeeze the film to both sides, keeping the film in a taut state. At the same time, the cams 7 and the support plate 10 fix the film, thus facilitating the cutter 5 to cut the film.

Claims

1. A PVC wrapping film cutting device, comprising a base (1), wherein two vertical plates (2) are symmetrically fixedly connected to the upper end of the base (1), and conveying rollers (3) are symmetrically rotatably mounted between the two vertical plates (2), and a film is disposed on both conveying rollers (3), characterized in that: A movable plate (4) is slidably installed between the two vertical plates (2). A cutter (5) is fixedly installed at the lower end of the movable plate (4). A lifting assembly for driving the movable plate (4) to move vertically is installed on the vertical plate (2). A rotating shaft (6) is symmetrically rotated between the two vertical plates (2). Two cams (7) are symmetrically fixedly sleeved on the rotating shaft (6). A torsion spring (8) is fixedly connected to the side wall of one side of the vertical plate (2). The other end of the torsion spring (8) is fixedly connected to the rotating shaft (6), and the torsion spring (8) is sleeved on the rotating shaft (6). A stop plate (9) is fixedly sleeved on the rotating shaft (6), and the stop plate (9) abuts against the movable plate (4). A support plate (10) is slidably connected between the two vertical plates (2), and the membrane abuts against the upper end of the support plate (10).

2. The PVC winding film cutting equipment according to claim 1, characterized in that, The lifting assembly includes a top plate fixedly connected to the upper ends of two vertical plates (2), and a cylinder (11) is fixedly installed on the upper end of the top plate. The piston end of the cylinder (11) is fixedly connected to the movable plate (4).

3. The PVC wrapping film cutting equipment according to claim 1, characterized in that, A bidirectional lead screw (12) is rotatably connected to one side wall of the vertical plate (2), and the bidirectional lead screw (12) is helically connected to two support plates (10).

4. The PVC wrapping film cutting equipment according to claim 3, characterized in that, A rotating block is fixedly connected to one end of the bidirectional lead screw (12).

5. A PVC winding film cutting device according to claim 4, characterized in that, A guide rod (13) is fixedly connected to the side wall of one side of the vertical plate (2). The guide rod (13) passes through the support plate (10) and the support plate (10) is slidably connected to the guide rod (13).

6. A PVC winding film cutting device according to claim 1, characterized in that, A drive motor (14) is fixedly installed on the side wall of one side of the vertical plate (2), and the output end of the drive motor (14) is connected to the corresponding conveying roller (3) through a coupling.

7. A PVC winding film cutting device according to claim 1, characterized in that, The torsion spring (8) is in a deformed state.

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