A cutting device for manufacturing plastic film

Abstract

This utility model relates to the field of plastic film manufacturing, specifically to a cutting device for plastic film manufacturing, including an adapter mounting plate. A pressure plate is provided at the upper end of the front of the adapter mounting plate, upper cylinders are provided on both sides of the top of the pressure plate, a cutting plate is provided at the lower end of the front of the adapter mounting plate, lower cylinders are provided on both sides of the bottom of the cutting plate, a first slice is provided at the top of the cutting plate, and a second slice is provided at the bottom of the pressure plate. Heat dissipation holes are provided on the surfaces of the pressure plate and the cutting plate. Hanging blocks are provided on both sides of the front of the adapter mounting plate, and sliders are sleeved on the outside of the hanging blocks. In this utility model, the lower cylinders drive the pressure plate and the cutting plate, and together with the slices, they form a stable cutting power system. The toothed plate presses the film material from the side, forming a two-way constraint. The adjustable slider structure can adapt to different film width requirements. The three work together to eliminate the risk of film material deviation during cutting from the dimensions of power transmission and film material fixation.

Description

Technical Field

[0001] This utility model relates to the field of plastic film manufacturing, specifically a cutting device for plastic film manufacturing. Background Technology

[0002] Cutting devices for plastic film manufacturing are key equipment in the plastic film production process, used to accurately cut continuously produced film materials to specifications. In actual production, a common problem is that the film material is prone to deviation during cutting due to uneven force and lack of effective constraints, resulting in poor cutting dimensional accuracy, difficulty in adapting to stable production of different specifications of film materials, and affecting product quality and production line adaptability.

[0003] As shown in the authorization announcement number CN222135094U, the cutting device for manufacturing plastic film is equipped with a processing seat, and the upper right side of the seat is connected to two sets of cutting frames. The left side of the cutting frame is provided with a first lifting groove, the upper part of which is connected to a hydraulic cylinder. The output end of the hydraulic cylinder is connected to a lifting plate, which slides in the first lifting groove and is connected to the cutting blades at the bottom. The right side of the lifting plate is connected to two sets of pushing blocks. The right side of the cutting frame is provided with a second lifting groove, the inside of which is connected to a first lifting rod, and the outside of which is slidably connected to a fixed plate. The bottom of the fixed plate is connected to a first spring, and the top of the spring is connected to the inner wall of the second lifting groove.

[0004] However, relying on push blocks, fixing plates, and springs to constrain the membrane material results in weak structural linkage and limited effect on pressing the sides of the membrane material. It is difficult to provide coordinated protection from multiple dimensions such as power drive, membrane material constraint, and spacing adaptation. In actual cutting, the membrane material is still prone to displacement due to insufficient constraint, and the cutting force is unevenly transmitted, making it impossible to stably adapt to membrane materials of different specifications.

[0005] Therefore, a cutting device for manufacturing plastic film is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a cutting device for manufacturing plastic films, which can solve the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for manufacturing plastic film, comprising an adapter mounting plate, a pressure plate provided at the upper end of the front side of the adapter mounting plate, upper cylinders provided on both sides of the top of the pressure plate, a cutting plate provided at the lower end of the front side of the adapter mounting plate, and lower cylinders provided on both sides of the bottom of the cutting plate. The top of the cutting plate is provided with a first slice, and the bottom of the pressure plate is provided with a second slice; The pressure plate and the cutting plate have heat dissipation holes on their surfaces. The adapter mounting plate has hanging blocks on both sides of its front side. A slider is fitted around the outside of the hanging blocks. A toothed piece is attached to the upper end of the front side of the slider. A spring is located in the middle of one side of the toothed piece.

[0008] Preferably, the slider and the adapter mounting plate are fixedly connected, and the slider has a V-shaped structure.

[0009] Preferably, the slider and the outside of the hanging block form a sliding structure.

[0010] Preferably, the midpoint of the bottom edge of the slider is higher than the center point of the bottom edge of the hanging block.

[0011] Preferably, the toothed plate and the spring are fixedly connected, and the toothed plate and the inner side of the slider are engaged.

[0012] Preferably, the length of the toothed piece is equal to the lengths of the first and second pieces.

[0013] Preferably, the area of ​​the pressure plate is the same as the area of ​​the cutting plate.

[0014] Compared with the prior art, the present invention provides a cutting device for manufacturing plastic film, which has the following advantages: 1. Upper and lower cylinders drive the pressure plate and cutting plate, which, together with the slicing blade, form a stable cutting power system. A toothed plate presses the membrane material from the side, creating a two-way constraint. An adjustable slider structure adapts to different membrane width requirements. These three components work together to eliminate the risk of membrane material shifting during cutting, from power transmission and membrane material fixation. By uniformly transmitting cutting force, uneven local stress is avoided, cutting dimensions are controlled, and the accuracy and reliability of each cutting action are ensured, meeting the dimensional consistency requirements of producing diverse membrane materials.

[0015] 2. The cylinder-driven power mode allows for flexible adjustment of the driving force of the pressure plate and cutting plate based on parameters such as membrane thickness and hardness; the toothed elastic clamping structure is compatible with the lateral constraints of membrane materials with different surface properties; the adjustable slider spacing design adapts to membrane material specifications of varying widths. With the collaboration of multiple structures, the device breaks through the limitations of single-material production, stably handling the cutting needs of diverse membrane materials without frequent equipment changes or extensive adjustments, improving the production line's responsiveness to different orders and expanding its production adaptability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A magnified structural diagram at point A; Figure 3 This is a layout diagram of the pressure plate and cutting plate of this utility model; Figure 4 This is an overall view illustrating the movement of the slider in this utility model; Figure 5 This is a simplified overall diagram illustrating the heat dissipation holes of this utility model.

[0017] In the diagram: 1. Adapter mounting plate; 2. Upper cylinder; 3. Pressure plate; 4. Heat dissipation hole; 5. Lower cylinder; 6. Cutting plate; 7. First slice; 8. Second slice; 9. Hanging block; 10. Toothed plate; 11. Slider; 12. Spring. 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] A cutting device for manufacturing plastic film includes an adapter mounting plate 1, a pressure plate 3 is provided at the upper end of the front side of the adapter mounting plate 1, upper cylinders 2 are provided on both sides of the top of the pressure plate 3, a cutting plate 6 is provided at the lower end of the front side of the adapter mounting plate 1, and lower cylinders 5 are provided on both sides of the bottom of the cutting plate 6. The top of the cutting plate 6 is provided with a first slice 7, and the bottom of the pressure plate 3 is provided with a second slice 8; The pressure plate 3 and the cutting plate 6 have heat dissipation holes 4 on their surfaces. The mounting plate 1 has hanging blocks 9 on both sides of its front side. The hanging blocks 9 are fitted with sliders 11. The upper end of the front side of the slider 11 is fitted with a toothed piece 10. A spring 12 is provided in the middle of one side of the toothed piece 10.

[0020] Example 1: Please refer to Figure 1 - Figure 5 The upper cylinder 2 and lower cylinder 5 are replaced with servo cylinders with displacement sensors. At the same time, pressure sensors are installed on the first slice 7 and the second slice 8. When the film material enters the cutting area, the servo cylinder receives the control signal and accurately controls the moving speed and stroke of the pressure plate 3 and the cutting plate 6 according to parameters such as film thickness and material. The displacement sensor provides real-time feedback on the position of the cylinder piston to ensure that the pressure plate 3 and the cutting plate 6 move synchronously and accurately close to the film material. Pressure sensors on the first slice 7 and the second slice 8 monitor the pressure value when the slices come into contact with the film material. If the pressure is abnormal, the servo cylinder adjusts the output force in time to ensure that the slices cut the film material with appropriate pressure, avoiding damage to the slices and film material due to excessive pressure or ineffective cutting due to insufficient pressure. This optimization improves the adaptability and cutting quality of different film materials by precisely controlling the linkage between the cylinder and the slices. It utilizes the basic logic of cylinder-driven slice cutting in the claims to enhance control precision and solve the problem of cutting instability that may occur in the original device due to differences in film materials.

[0021] Example 2: Please refer to Figure 1 - Figure 5The V-shaped structure of slider 11 is optimized into an adjustable hinged V-shaped structure. By setting an angle adjustment bolt at the hinge of slider 11, the V-shaped opening angle of slider 11 can be adjusted according to the width of the membrane material and the side shape, thereby changing the pressing angle of the toothed plate 10 on the side of the membrane material. At the same time, the material of the toothed plate 10 is replaced with an elastic wear-resistant material with anti-slip texture on the surface to enhance the friction on the membrane material and improve the pressing stability. When the width of the membrane material changes, loosen the angle adjustment bolt and adjust the size of the V-shaped opening of the slider 11 so that the toothed plate 10 fits the side of the membrane material better. When the side shape of the membrane material is special, the elastic and wear-resistant toothed plate 10 can adapt to fit, and the spring 12 assists in resetting. This improvement is based on the matching structure of the slider 11 and the toothed plate 10 in the claims, optimizes its adaptability and pressing effect, solves the problem of insufficient adaptability of the original device to different membrane material sides, and broadens the application range of the device.

[0022] When in use, the adapter mounting plate 1 is first precisely installed in the predetermined position of the film conveying equipment to provide a stable installation base for the subsequent cutting action. When the film material is conveyed to the device, it enters the channel area formed by the toothed plate 10 and triggers the cutting process. At this time, the upper cylinders 2 on both sides of the top of the pressure plate 3 and the lower cylinders 5 on both sides of the bottom of the cutting plate 6 receive the signal and start. The upper cylinders 2 generate driving force to move the pressure plate 3 downward, and the lower cylinders 5 simultaneously move the cutting plate 6 upward, so that the pressure plate 3 and the cutting plate 6 approach the film material from the top and bottom sides at the same time. During the approach process, the first slice 7 at the top of the cutting plate 6 and the second slice 8 at the bottom of the pressure plate 3 gradually approach the film material and finally cooperate to complete the film material cutting action. By using the power transmission of the two-way approach and the cooperation of the slices, efficient cutting is achieved. When the pressure plate 3 and the cutting plate 6 move, their edges will squeeze the toothed piece 10. After being squeezed, the toothed piece 10 moves towards the film material and presses the film material, providing a stable positioning constraint for the film material during cutting and preventing the film material from shifting due to the cutting force. When the cutting is completed, the pressure plate 3 and the cutting plate 6 return to their original positions, and the spring 12 in the middle of one side of the toothed piece 10 plays an elastic reset role, pulling the toothed piece 10 back to its initial position, preparing for the next film material cutting. Meanwhile, if it is necessary to adjust the contact distance between the toothed plate 10 and the pressure plate 3 and the cutting plate 6, it can be achieved by moving the slider 11. Since the slider 11 and the outside of the hanging block 9 form a sliding structure, and the slider 11 has a V-shaped structure, the user can push or pull the slider 11 to make it slide outside the hanging block 9, change the relative position of the slider 11, and thus control the distance between the toothed plate 10 and the pressure plate 3 and the cutting plate 6, adapting to the cutting requirements of film materials of different widths and thicknesses, ensuring the compatibility of the side pressing effect of the film material and the cutting action during the cutting process. In addition, the heat dissipation holes 4 opened on the surface of the pressure plate 3 and the cutting plate 6 can dissipate the heat generated by the cutting action in time when the device is working, avoiding the impact of heat accumulation on the slicing performance and film quality, and maintaining a stable operating environment for the device.

[0023] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for manufacturing plastic film, comprising an adapter mounting plate, characterized in that: A pressure plate is provided at the upper end of the front side of the adapter mounting plate, upper cylinders are provided on both sides of the top of the pressure plate, a cutting plate is provided at the lower end of the front side of the adapter mounting plate, and lower cylinders are provided on both sides of the bottom of the cutting plate. The top of the cutting plate is provided with a first slice, and the bottom of the pressure plate is provided with a second slice; The pressure plate and the cutting plate have heat dissipation holes on their surfaces. The adapter mounting plate has hanging blocks on both sides of its front side. A slider is fitted around the outside of the hanging blocks. A toothed piece is attached to the upper end of the front side of the slider. A spring is located in the middle of one side of the toothed piece.

2. The cutting device for manufacturing plastic film according to claim 1, characterized in that: The slider and the adapter mounting plate are fixedly connected, and the slider has a V-shaped structure.

3. The cutting device for manufacturing plastic film according to claim 1, characterized in that: The slider and the outside of the hanging block form a sliding structure.

4. The cutting device for manufacturing plastic film according to claim 1, characterized in that: The midpoint of the bottom edge of the slider is higher than the center point of the bottom edge of the hanging block.

5. A cutting device for manufacturing plastic film according to claim 1, characterized in that: The toothed plate is fixedly connected to the spring, and the toothed plate is engaged with the inner side of the slider.

6. A cutting device for manufacturing plastic film according to claim 1, characterized in that: The length of the toothed plate is equal to the lengths of the first and second plates.

7. A cutting device for manufacturing plastic film according to claim 1, characterized in that: The area of ​​the pressure plate is the same as the area of ​​the cutting plate.

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