Plastic film cutting device
By introducing liftable cutting tool and rolling wheel structure into the plastic film cutting device, the wrinkles and unevenness of the film during cutting are solved, and the straightness and stability of the cutting edges are achieved, and the tool wear is reduced.
Patent Information
- Application Number
- CN202422367043.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing plastic film cutting devices lack flattening devices, which leads to wrinkles or twists during cutting, uneven cutting sections and uneven sizes, affecting subsequent use.
The cutting device is equipped with liftable cutting tools and clamps. Rolling wheels are installed on both sides of the clamps. The rolling wheels are pressed down to unfold the flat film as the clamps are pressed down. Combined with the design of the cutting groove, the film is ensured to be flat and the cutting process is stabilized through the lifting cylinder and support spring structure.
Effectively prevent the film from wrinkling during cutting, ensure the cutting edge is straight, reduce the wear of the blade, and improve the stability and consistency of cutting.
Smart Images
Figure CN223173117U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of film cutting, in particular to a plastic film cutting device. Background Art
[0002] In the production process of plastic films, cutting the films is an indispensable process. The existing plastic film cutting device consists of a cutting blade, a tool holder, a workbench, a control system and a drive system. Since the existing plastic film cutting device lacks a device for flattening the film, it cannot ensure that the film is in a flat state. When cutting the film, if the film itself has wrinkles or twists, it will cause the cutting section to be uneven, resulting in uneven cutting dimensions of the film and irregular edges of the film, which is not conducive to the subsequent use of the plastic film. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a plastic film cutting device to overcome the above-mentioned defects in the prior art.
[0004] According to a plastic film cutting device of the utility model, it includes a workbench, a cutting table is arranged on the upper side of the workbench, a liftable cutting tool is arranged above the cutting table, and two upper and lower clamping plates are installed on both sides of the cutting table. Rolling wheels for flattening the film are rotatably connected to both ends of the upper clamping plate.
[0005] Through the above technical solution, two rolling wheels are arranged on both sides of the bottom of the clamping plate. The two rolling wheels expand outwards as the upper clamping plate presses down, thereby flattening the film, ensuring that the film will not have wrinkles when transported to the cutting table. At the same time, the film is cut on the cutting table, which can further ensure the flatness of the film and make the cutting edge of the film straight.
[0006] The utility model is further arranged as follows: roller grooves for receiving the rolling wheels are opened at both ends of the bottom surface of the upper clamping plate. A rotating rod is rotatably connected to the bottom surface of the clamping plate. A support spring is connected between the rotating rod and the bottom wall of the roller groove. The rolling wheel is connected to the end of the rotating rod far from the clamping plate. The depth of the notch of the roller groove is greater than the diameter of the rolling wheel.
[0007] Through the above technical solution, it can be ensured that after the rolling wheel is received in the roller groove, the edge of the roller is located inside the roller groove, avoiding the roller protruding from the roller groove and causing indentations on the surface of the film when the clamping plate clamps the film.
[0008] The utility model is further arranged as follows: support rods are arranged at both ends of the clamping plate. The lower clamping plate is fixed on the support rods, and its top surface is flush with the top surface of the cutting table.
[0009] Through the above technical solution, the top surface of the lower clamping plate is flush with the top surface of the cutting table, which can ensure that after the clamping plate clamps the film, the film remains horizontal as a whole during cutting.
[0010] The present utility model is further configured as follows: lifting platforms are symmetrically arranged on both sides of the cutting tool, a sliding groove is formed in the inner side wall of the lifting platform, sliding blocks are fixedly arranged at both ends of the cutting tool close to the lifting platform, the sliding blocks are slidably connected in the sliding groove, and a lifting cylinder is fixedly connected to the bottom of the sliding block.
[0011] Through the above technical solution, it can be ensured that the cutting tool remains stable during lifting, so that the cutting tool is not prone to deviation during cutting, ensuring the stability of film cutting.
[0012] The present utility model is further configured as follows: a cutting groove is formed on the top surface of the cutting table, and the mouth of the cutting groove faces the cutting tool.
[0013] Through the above technical solution, the setting of the cutting groove can ensure that when the cutting tool cuts the tensioned film, there is a certain distance between the cutting edge of the cutting tool and the bottom wall of the cutting groove after the film is cut, thereby preventing the cutting tool from directly contacting the tabletop of the cutting table, reducing the wear of the cutting edge, and making the cut of the film smoother.
[0014] The present utility model is further configured as follows: transmission rollers are symmetrically installed at both ends of the workbench, and the top of the transmission roller is flush with the top surface of the cutting table.
[0015] Through the above technical solution, it is ensured that the film is always in a horizontal state during transmission, which is beneficial to the flatness of the film during transportation.
[0016] The beneficial effects of the present utility model are as follows: two rolling wheels are arranged on both sides of the bottom of the clamping plate, and the two rolling wheels expand outwards as the upper clamping plate presses down, thereby flattening the film, reducing the possibility of the film wrinkling when being transported to the cutting table. At the same time, the setting of the cutting groove can ensure that when the cutting tool cuts the tensioned film, there is a certain distance between the cutting edge of the cutting tool and the bottom wall of the cutting groove after the film is cut, thereby preventing the cutting tool from directly contacting the tabletop of the cutting table, reducing the wear of the cutting edge, further ensuring the flatness of the film, and making the cutting edge of the film straight. Description of the Drawings
[0017] Figure 1 is a schematic structural diagram of the present utility model;
[0018] Figure 2 is a side view of the present utility model;
[0019] Figure 3 is the present utility model Figure 2 Enlarged schematic diagram at A in;
[0020] Figure 4 is the enlarged schematic view of part B in the present utility model Figure 2 ;
[0021] Figure 5 is the schematic view of the clamping plate structure of the present utility model
[0022] Figure 6 is the present utility model Figure 5 the enlarged schematic view of part C therein.
[0023] In the figure: 1, workbench; 2, transmission roller; 3, cutting table; 4, cutting tool; 401, slider; 5, clamping plate; 501, rolling wheel; 502, roller groove; 503, rotating rod; 6, lifting table; 601, sliding groove; 7, cutting groove; 8, lifting cylinder; 9, support rod; 901, lifting device. Specific embodiments
[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the Figure 1 orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present utility model and is a simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0025] In order to make the purpose and advantages of the present utility model more clear, the following specifically describes the present utility model in combination with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model. As used herein, the terms "upper", "lower", "left", and "right" do not limit their strict geometric definitions, but include tolerances for machining or human errors that are reasonable and inconsistent. The specific features of the plastic film cutting device are described in detail below:
[0026] An embodiment of the present utility model:
[0027] Refer to Figures 1-6, the present utility model provides a plastic film cutting device, which includes a workbench 1. A cutting table 3 is installed on the upper side of the workbench 1. A liftable cutting tool 4 is arranged above the cutting table 3. A cutting groove 7 is formed on the top surface of the cutting table 3, and the opening of the cutting groove 7 faces the cutting tool 4 directly. The cutting tool 4 is made of cermet. Two upper and lower clamping plates 5 are installed on both sides of the cutting table 3. Rolling wheels 501 for flattening the film are rotatably connected to both ends of the upper clamping plate 5. Support rods 9 are arranged at both ends of the clamping plate 5. The lower clamping plate 5 is fixed on the support rod 9, and its top surface is flush with the top surface of the cutting table 3. A lifting device 901 is arranged on the support rod 9. The lifting device 901 is a lifting cylinder. The upper clamping plate 5 is fixedly connected to the lifting device 901. Transmission rollers 2 are symmetrically installed at both ends of the workbench 1, and the top of the transmission rollers 2 is flush with the top surface of the cutting table 1.
[0028] Refer to Figure 2 , Figure 4 , lifting platforms 6 are symmetrically installed on both sides of the cutting tool 4. A sliding groove 601 is formed on the inner side wall of the lifting platform 6. Sliders 401 are fixedly arranged at both ends of the cutting tool 4 close to the lifting platform 6. The sliders 401 are slidably connected in the sliding groove 601. A lifting cylinder 8 is fixedly connected to the bottom of the slider 401. The lifting cylinder 8 is composed of components such as a cylinder body, a piston rod, and a driving component. The lifting cylinder 8 drives the slider 401 to slide in the sliding groove 601 through the telescopic movement of the piston rod, so that the cutting tool 4 performs a lifting movement along the sliding groove 601.
[0029] Refer to Figure 3 , Figure 5 , Figure 6 , roller grooves 502 for accommodating the rolling wheels 501 are formed at both ends of the bottom surface of the upper clamping plate 5. Rotating rods 503 are rotatably connected to both ends of the bottom of the clamping plate 5. The rolling wheels 501 are connected to one end of the rotating rod 503 away from the clamping plate 5. A support spring is connected between the rotating rod (503) and the bottom wall of the roller groove (502). The depth of the opening of the roller groove 502 is greater than the diameter of the rolling wheel 501. After the rolling wheel 501 is received in the roller groove 502, the edge of the roller is located inside the roller groove 502, so as to avoid the rolling wheel 501 protruding from the roller groove 502 and causing indentations on the surface of the film when the clamping plate 5 clamps the film.
[0030] The film is wound around the conveying roller 2 on one side, and the conveying roller 2 on the other side winds up the film by the rotation of the motor. When the film is conveyed to the lower clamping plate 5 through the conveying roller 2, the upper clamping plate 5 reduces its height through the cylinder. The rolling wheels 501 on the rotating rods 503 at both ends of its bottom are in contact with the film. When the height of the upper clamping plate 5 decreases, the rotating rod 503 rotates towards the roller groove 502, so that the two rolling wheels 501 roll away from each other. The support spring in the natural length state on the side wall of the rotating rod 503 is compressed. At this time, the support spring exerts a downward positive pressure on the rolling wheel 501, increasing the rolling friction of the rolling wheel 501 on the film. When the rolling wheel 501 rolls along both sides of the film, a force is given to the film to extend to both sides, so as to realize that the rolling wheel 501 flattens both sides of the film, and the film is laid flat on the cutting table 3. The cutting tool 4 above the cutting table 3 moves up and down through the lifting air rod 8. When the cutting edge position of the cutting tool 4 is in the cutting groove 7, the film is cut into two sections smoothly at this time.
[0031] Those skilled in the art can clearly understand that various modifications to the above embodiments can be made without departing from the general spirit and concept of the present invention. They all fall within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims attached to the present invention.
Claims
1. A plastic film cutting device, comprising a workbench (1), characterized in that: A cutting table (3) is installed on the upper side of the workbench (1). A liftable cutting tool (4) is arranged above the cutting table (3). Two upper and lower clamping plates (5) are installed on both sides of the cutting table (3). Two rolling wheels (501) are rotatably connected to both ends of the upper clamping plate (5). The two rolling wheels (501) expand outwards as the upper clamping plate (5) presses downwards.
2. The plastic film cutting device according to claim 1, wherein: Roller grooves (502) for receiving the rolling wheels (501) are formed at both ends of the bottom surface of the upper clamping plate (5). A rotating rod (503) is rotatably connected to the bottom surface of the clamping plate (5). A support spring in a natural length state is connected between the rotating rod (503) and the bottom wall of the roller groove (502). The rolling wheel (501) is connected to the end of the rotating rod (503) away from the clamping plate (5). The depth of the notch of the roller groove (502) is greater than the diameter of the rolling wheel (501).
3. A plastic film cutting device according to claim 2, characterized in that: Support rods (9) are arranged at both ends of the clamping plate (5). The lower clamping plate (5) is fixed on the support rods (9), and its top surface is flush with the top surface of the cutting table (3). A lifting device (901) is arranged on the support rods (9). The upper clamping plate (5) is fixedly connected to the lifting device (901).
4. A plastic film cutting device according to claim 1, characterized in that: Lifting platforms (6) are symmetrically installed on both sides of the cutting tool (4). A sliding groove (601) is formed on the inner side wall of the lifting platform (6). Sliders (401) are fixedly arranged at both ends of the cutting tool (4) close to the lifting platform (6). The sliders (401) are slidably connected in the sliding groove (601). A lifting cylinder (8) is fixedly connected to the bottom of the slider (401).
5. A plastic film cutting device according to claim 1, characterized in that: A cutting groove (7) is formed on the top surface of the cutting table (3). The notch of the cutting groove (7) is directly opposite to the cutting tool (4).
6. The plastic film cutting device according to claim 1, wherein: Conveyor rollers (2) are symmetrically installed at both ends of the workbench (1). The top of the conveyor rollers (2) is flush with the top surface of the cutting table (3).