Cutting device for plastic film forming
By designing a plastic film cutting device with automatic pressing and automatic cleaning functions, the problems of manual pressing and manual cleaning in existing devices have been solved, realizing a time-saving and labor-saving cutting process and automatic waste cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RONGCHENG HENGWEI NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-05
AI Technical Summary
Existing plastic film forming and cutting equipment requires workers to manually press the film during the cutting process to prevent it from curling up, which is time-consuming and labor-intensive. In addition, the waste generated during cutting needs to be manually cleaned up, which increases the workload.
A cutting device comprising a rubber pressure plate, a spring, a handle, a locking block, and a motor drive was designed. The rubber pressure plate and the spring work together to automatically press the film, reducing the need for manual pressing. At the same time, the screw and cleaning sponge are used to automatically clean up waste materials, reducing manual cleaning steps.
It achieves automatic film pressing without the need for manual pressing, reducing the labor intensity of workers, and reduces cleaning steps by automatically cleaning up waste, thereby improving cutting efficiency and safety.
Smart Images

Figure CN224196880U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic film production technology, specifically a cutting device for plastic film forming. 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 large share of the market, especially composite plastic flexible packaging, which has been widely used in the food, pharmaceutical and chemical industries.
[0003] Currently, existing plastic film forming and cutting devices require workers to manually press the plastic film to prevent it from curling up during the cutting process. This is not only time-consuming and labor-intensive, but also increases the risk of injury during the cutting process. In addition, the waste generated during the cutting process needs to be manually cleaned up, which greatly increases the workload. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a cutting device for plastic film forming, which solves the problem that existing cutting devices for plastic film forming require workers to manually press the plastic film to prevent it from curling up during the cutting process. This is not only time-consuming and labor-intensive, but also prone to injury during the cutting process. In addition, the waste generated during the cutting process needs to be manually cleaned up, which greatly increases the workload.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for plastic film forming, comprising a worktable, with fixed plates fixedly installed at the four corners of the worktable, two fixed plates forming a group, a connecting rod slidably installed on the fixed plate, a rubber pressure plate fixedly installed at the bottom of the connecting rod, a handle fixedly installed on the connecting rod, two springs II installed between the fixed plates and the rubber pressure plate, slots formed at the four corners of the worktable, a locking block slidably installed in the slot, a spring I installed in the slot, the locking block connected to spring I, a collection groove and two positioning grooves formed on the worktable, a discharge port formed on the worktable, two fixed frames fixedly installed on the worktable, and a protective box fixedly installed on the fixed frames.
[0006] As a further embodiment of this utility model: a screw is installed inside the fixing frame via a bearing, and sliding rods are installed on both sides of the screw.
[0007] As a further embodiment of this utility model: a movable block is threadedly connected to the screw, the movable block is slidably mounted on the slide rod, and a movable frame is fixedly mounted on the movable block.
[0008] As a further embodiment of this utility model: a telescopic rod is installed on the movable frame, and an installation plate is installed at the end of the telescopic rod through the movable frame.
[0009] As a further embodiment of this utility model: a knife and a cleaning sponge are fixedly installed at the bottom of the mounting plate, and the knife and the cleaning sponge correspond to the collection groove.
[0010] As a further embodiment of this utility model: a motor is installed inside the protective box, the output of the motor is connected to the screw through the fixing frame, and columns are fixedly installed at the four corners of the bottom of the workbench.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This plastic film forming and cutting device, consisting of a rubber pressure plate, a spring, a handle, and a locking block, operates by first pulling the handle. Since the handle is connected to the rubber pressure plate, its movement causes the plate to move, which in turn compresses the locking block, moving it within its slot until the pressure plate reaches the desired position. During this process, the pressure plate compresses the spring, generating elasticity. The locking block's movement compresses the spring, which in turn resets the locking block. The plastic film to be cut is then passed through the positioning slot and laid flat on the worktable. The handle is then pressed down, causing the pressure plate to move until it approaches the film. The elasticity of the spring compresses the pressure plate, which then presses the film firmly. This eliminates the need for manual pressing, saving time and effort and preventing injury.
[0013] 2. This plastic film forming cutting device, consisting of a cutting tool, a cleaning sponge, a screw, and a moving block, operates by having the operator extend a telescopic rod. The telescopic rod moves the cutting tool and cleaning sponge to the desired position. Then, the motor is activated, and its output shaft rotates the screw. The screw's rotation causes the threaded moving block to move along the screw and slide bar. This movement of the moving block synchronously moves the components mounted on it, thus cutting the plastic film. During the cutting process, the cleaning sponge sweeps up any waste material that falls into the collection trough and discharges it from the discharge port. This eliminates the need for manual cleaning by the operator, reducing their workload. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the structure of the grip and spring of this utility model;
[0016] Figure 3 This is a schematic diagram of the screw and the movable frame of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the motor and cleaning sponge of this utility model;
[0018] In the diagram: 1. Workbench; 2. Positioning slot; 3. Column; 4. Fixed frame; 5. Moving frame; 6. Protective box; 7. Collection trough; 8. Discharge port; 9. Fixed plate; 10. Slot; 11. Spring 1; 12. Locking block; 13. Connecting rod; 14. Handle; 15. Rubber pressure plate; 16. Screw; 17. Slide rod; 18. Moving block; 19. Telescopic rod; 20. Motor; 21. Mounting plate; 22. Cutting tool; 23. Cleaning sponge; 24. Spring 2. Detailed Implementation
[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0020] like Figure 1-4 As shown, this utility model provides a technical solution: a cutting device for forming plastic film, including a workbench 1, with fixed plates 9 fixedly installed at the four corners of the workbench 1, two fixed plates 9 forming a group, a connecting rod 13 slidably installed on the fixed plate 9, a rubber pressure plate 15 fixedly installed at the bottom of the connecting rod 13, and a handle 14 fixedly installed on the connecting rod 13. Because of the handle 14, the rubber pressure plate 15 can be moved by the handle 14. The movement of the rubber pressure plate 15 will compress the second spring 24 to generate elastic force until the rubber pressure plate 15 moves to the appropriate position. After the plastic film to be cut is laid flat on the workbench 1 through the positioning groove 2, the handle 14 is pressed down, and the handle 14 drives the rubber pressure plate 15 to move until the rubber pressure plate 15 is close to the plastic film. Under the action of the elastic force generated by the second spring 24, the rubber pressure plate 15 will press the plastic film tightly. There is no need for the worker to manually press the plastic film, saving time and effort and avoiding injury.
[0021] Two springs 24 are installed between the fixed plate 9 and the rubber pressure plate 15. The worktable 1 has slots 10 at the four corners, and a locking block 12 is slidably installed in the slots 10. Because of the locking block 12, when the rubber pressure plate 15 moves above the locking block 12, the elastic force generated by the spring 11 will drive the locking block 12 to reset. The locking block 12 can prevent the rubber pressure plate 15 from moving under the elastic force of the spring 24, which facilitates the subsequent placement of plastic film.
[0022] A spring 11 is installed in the slot 10, and the locking block 12 is connected to the spring 11. The worktable 1 has a collection slot 7 and two positioning slots 2. The worktable 1 has a discharge port 8. Two fixed brackets 4 are fixedly installed on the worktable 1. A screw 16 is installed in the fixed bracket 4 through a bearing. Slide rods 17 are installed on both sides of the screw 16. A motor 20 is installed in the protective box 6. The output of the motor 20 passes through the fixed bracket 4 and is connected to the screw 16. Columns 3 are fixedly installed at the four corners of the bottom of the worktable 1. Because the motor 20 is installed, the output shaft of the motor 20 can drive the screw 16 to rotate. The rotation of the screw 16 drives the threaded moving block 18 on it to move on the screw 16 and slide rods 17. The movement of the moving block 18 drives the components installed on it to move synchronously, thereby cutting the plastic film and ensuring the subsequent work.
[0023] A movable block 18 is threadedly connected to the screw 16. The movable block 18 is slidably mounted on the slide rod 17. A movable frame 5 is fixedly mounted on the movable block 18.
[0024] A telescopic rod 19 is installed on the movable frame 5, and an installation plate 21 is installed through the end of the telescopic rod 19 through the movable frame 5.
[0025] The bottom of the mounting plate 21 is fixedly equipped with a blade 22 and a cleaning sponge 23. The blade 22 and the cleaning sponge 23 correspond to the collection trough 7. Because the cleaning sponge 23 is installed, the cleaning sponge 23 will clean up the waste material that falls into the collection trough 7 during the cutting process of the blade 22, and then discharge it from the discharge port 8. There is no need for the staff to clean it manually, which reduces the workload of the staff.
[0026] A protective box 6 is fixedly installed on the mounting bracket 4.
[0027] The working principle of this utility model is as follows: When working, the worker first pulls the handle 14. Since the handle 14 is connected to the rubber pressure plate 15, the movement of the handle 14 will drive the rubber pressure plate 15 to move. The movement of the rubber pressure plate 15 will squeeze the locking block 12, thereby driving the locking block 12 to move in the locking groove 10 until the rubber pressure plate 15 moves to the appropriate position. During this process, the rubber pressure plate 15 will compress the second spring 24 to generate elastic force. The movement of the locking block 12 will compress the first spring 11. The elastic force generated by the first spring 11 will drive the locking block 12 to reset. Then, the plastic film to be cut is passed through the positioning groove 2 and laid flat on the workbench 1. Then, the handle 14 is pressed down. The handle 14 drives the rubber pressure plate 15 to move until the rubber pressure plate 15 is close to the plastic film. Under the action of the elastic force generated by the second spring 24, the rubber pressure plate 15 will press the plastic film tightly.
[0028] During operation, the operator opens the telescopic rod 19, which moves the cutter 22 and the cleaning sponge 23 until they reach the appropriate position. Then, the operator turns on the motor 20, whose output shaft drives the screw 16 to rotate. The rotation of the screw 16 causes the threaded moving block 18 to move on the screw 16 and the slide rod 17. The movement of the moving block 18 causes the components mounted on it to move synchronously, thereby cutting the plastic film. During the cutting process, the cleaning sponge 23 cleans up the waste material that falls into the collection tank 7 and then discharges it from the discharge port 8.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A cutting device for forming plastic film, comprising a worktable (1), characterized in that: Fixed plates (9) are fixedly installed at the four corners of the workbench (1). Two fixed plates (9) are set together. A connecting rod (13) is slidably installed on the fixed plate (9). A rubber pressure plate (15) is fixedly installed at the bottom of the connecting rod (13). A handle (14) is fixedly installed on the connecting rod (13). Two springs (24) are installed between the fixed plate (9) and the rubber pressure plate (15). Slots (10) are opened at the four corners of the workbench (1). A block (12) is slidably installed in the slot (10). A spring (11) is installed in the slot (10). The block (12) is connected to the spring (11). A collection slot (7) and two positioning slots (2) are opened on the workbench (1). A discharge port (8) is opened on the workbench (1). Two fixed frames (4) are fixedly installed on the workbench (1). A protective box (6) is fixedly installed on the fixed frame (4).
2. The cutting device for forming plastic film according to claim 1, characterized in that: A screw (16) is installed inside the fixing frame (4) via a bearing, and slide rods (17) are installed on both sides of the screw (16).
3. The cutting device for forming plastic film according to claim 2, characterized in that: A movable block (18) is threadedly connected to the screw (16), the movable block (18) is slidably mounted on the slide rod (17), and a movable frame (5) is fixedly mounted on the movable block (18).
4. The cutting device for forming plastic film according to claim 3, characterized in that: A telescopic rod (19) is installed on the movable frame (5), and the end of the telescopic rod (19) passes through the movable frame (5) and is mounted on an installation plate (21).
5. A cutting device for forming plastic film according to claim 4, characterized in that: The bottom of the mounting plate (21) is fixedly equipped with a knife (22) and a cleaning sponge (23), which correspond to the collection groove (7).
6. A cutting device for forming plastic film according to claim 3, characterized in that: The protective box (6) is equipped with a motor (20), the output of the motor (20) is connected to the screw (16) through the fixing frame (4), and the workbench (1) is fixedly installed with columns (3) at the four corners of the bottom.