Cutting equipment for plastic film processing

Abstract

The utility model relates to cutting equipment for plastic film processing, which is applied to the technical field of plastic film processing equipment, and realizes that a servo motor is started to drive a reel to roll a plastic film, and when the plastic film is rolled to a certain length and needs to be cut, an electromagnetic sheet can be started through a controller, so that two first clamping plates attract each other to clamp and fix the plastic film, and the cutting efficiency is improved. Meanwhile, the magnetic force of an electromagnetic sheet on a second clamping plate is controlled to be smaller than the magnetic attraction acting force of the electromagnetic sheets on the surfaces of the two first clamping plates, at the moment, a first electric sliding rail is started to drive a second positioning plate to drive the second clamping plate to move downwards, the plastic film is flattened, and the magnetic force of the electromagnetic sheet on the second clamping plate is increased after flattening; at the moment, the two second clamping plates are located at the lower ends of the grooves, so that the two second clamping plates clamp and fix the plastic film, the plastic film located between the first clamping plate and the second clamping plates is in a tight and flat state, and a second electric sliding rail can be started to drive a cutting knife to cut the plastic film.

Description

Technical Field

[0001] This utility model relates to a plastic film processing equipment, and more particularly to a cutting device for plastic film processing applied in the field of plastic film processing equipment technology. Background Technology

[0002] Plastic film is a thin, soft, transparent sheet made of plastics, adhesives, rubber, 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 flexible plastic packaging, which is widely used in the food, pharmaceutical, and chemical industries. These products have brought great convenience to people's lives. Generally, the width of plastic film is a fixed size during the production process, while the length of the film can be determined according to the size of the packaging to be sold.

[0003] Chinese patent CN215848458U discloses a plastic film cutting device. By inflating an air bladder, the inflated air bladder can push a sliding column to slide outward and press against the inner circumference of the plastic film roll, so that the plastic film roll can be tightly wrapped around the outside of the hollow roller shaft, thereby enabling the hollow roller shaft to stably drive the plastic film roll to rotate.

[0004] During the cutting process, plastic film is prone to wrinkles and misalignment. Wrinkles will result in an uneven film surface after cutting, while misalignment may cause the cutting position to be incorrect. Both of these situations increase material waste and raise production costs. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that during the cutting process, plastic film is prone to wrinkles and displacement. Wrinkles will result in an uneven film surface after cutting, and displacement may cause the cutting position to be incorrect. Both of these situations increase material waste and increase production costs.

[0006] To solve the above problems, this utility model provides a cutting device for processing plastic film. A first support plate is symmetrically fixedly connected above the front end of a support frame, and a roller is rotatably connected between the two first support plates. A second support plate is symmetrically fixedly connected below the first support plates at the front end of the support frame, and a roller is rotatably connected between the two second support plates. Plastic film is wound around the surface of the first support plates and extends to the surface of the roller. A connecting plate is symmetrically fixedly connected to the front end of the support frame outside the second support plates. A groove is formed on the connecting plate, and an upper clamping assembly and a lower clamping assembly are connected within the groove. The upper clamping assembly includes a first positioning plate fixed within the groove. A first sliding groove is formed at the end of the first positioning plate away from the groove, and symmetrically arranged sliders are connected inside the first sliding groove. Each block has a first clamping plate connected to its surface, and a compression spring is fixedly connected between the two sliders. Electromagnetic plates are installed on the surfaces of the two first clamping plates that are close to each other, and the two electromagnetic plates attract each other. An arc-shaped plate is fixedly connected to the top of the first clamping plate near the support. The lower clamping assembly includes a second positioning plate that is slidably connected in the groove and located below the upper clamping assembly. A first electric slide rail is fixedly connected in the groove, and the second positioning plate is slidably connected to the electric slide rail. A second clamping plate with the same structure as the first clamping plate is symmetrically slidably connected in the second positioning plate. A plastic film passes between the two upper clamping assemblies and the two lower clamping assemblies. A first force-bearing plate is fixedly connected between the two connecting plates at the back of the plastic film. A cutting blade is slidably connected to the end of the first force-bearing plate near the plastic film.

[0007] In the above-mentioned cutting equipment, by setting up an upper clamping component and a lower clamping component, the upper and lower parts of the plastic film to be cut can be fixed and kept in a tight and flat state, so that wrinkles or deviations will not occur during cutting.

[0008] As a further improvement of this application, a second groove is provided on the surface of the first force plate near the plastic film, and a second electric slide rail is fixedly connected in the second groove, and the cutting blade is slidably connected to the second electric slide rail.

[0009] As a further improvement of this application, a second force-bearing plate is fixedly connected between the two connecting plates at the front side of the plastic film. A sliding hole is opened in the middle of the second force-bearing plate, and a sliding plate is slidably connected in the sliding hole.

[0010] As a further improvement of this application, a backing plate is fixedly connected to one end of the skateboard near the plastic film, and a strip plate is fixedly connected to the other end, with a handle fixedly connected to the end of the strip plate away from the backing plate.

[0011] As another improvement of this application, magnetic layers are arranged at both ends of the second force-bearing plate, on the surface of the abutment plate and the strip plate, and the two magnetic layers arranged in the same way attract each other.

[0012] As a further improvement to this application, two second support plates are symmetrically provided with round holes, and a through hole is provided on the side end of the spool, with the diameter of the through hole being the same as that of the round hole.

[0013] As a further improvement to this application, a support plate is fixedly connected to the outer side of one of the second support plates, a servo motor is fixedly connected to the support plate, and the output end of the servo motor is rotatably connected to the reel.

[0014] As a further improvement to this application, a rotating shaft with a handle at one end is inserted into the round hole and the through hole. A limit hole is opened on the side end of the rotating shaft. A limit block that matches the limit hole is fixedly connected to the output end of the servo motor, and the limit hole and the limit block are engaged.

[0015] In summary, the servo motor drives the reel to wind up the plastic film. When it needs to be cut after being wound to a certain length, the controller can activate the electromagnetic plates, causing the two first clamping plates to attract each other and clamp the plastic film in place. At the same time, by controlling the magnetic force of the electromagnetic plates on the second clamping plate, it is made less than the magnetic attraction force of the electromagnetic plates on the surfaces of the two first clamping plates. As the two second clamping plates attract each other and clamp the plastic film, the surface of the plastic film can be smoothed as it slides down. At this time, the first electric slide rail drives the second positioning plate to move the second clamping plate down and smooth the plastic film. After smoothing, the magnetic force of the electromagnetic plates on the second clamping plate is increased. At this time, the two second clamping plates are located at the lower end of the groove, so that the two second clamping plates clamp the plastic film tightly and fix it. At this time, the plastic film between the first clamping plate and the second clamping plate is in a taut and flat state. Then, the second electric slide rail can be activated to drive the cutting blade to cut the plastic film, and the horizontal displacement range of the cutting blade is not less than the cross-section of the plastic film. Attached Figure Description

[0016] Figure 1 These are isometric views of the cutting equipment according to the first and second embodiments of this application;

[0017] Figure 2 For this application Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the clamping component structure according to the first embodiment of this application;

[0019] Figure 4 For this application Figure 3 Enlarged view at point B in the middle;

[0020] Figure 5 This is a schematic diagram of the scroll mounting structure according to the second embodiment of this application;

[0021] Figure 6 This is a schematic diagram of the backing plate and cutting blade structure according to the second embodiment of this application;

[0022] Figure 7 This is a schematic diagram of a partial structure of the backing plate according to the second embodiment of this application.

[0023] Explanation of the labels in the diagram:

[0024] 1. Bracket; 2. Support plate; 3. First support plate; 4. Plastic film; 5. Connecting plate; 6. Groove; 7. Upper clamping assembly; 701. First clamping plate; 702. Compression spring; 703. Arc plate; 704. First positioning plate; 705. First slide groove; 8. Lower clamping assembly; 801. Second clamping plate; 802. Second positioning plate; 9. Reel; 10. Second support plate; 11. Servo motor; 12. Strip plate; 13. Second slide groove; 14. Cutting blade; 15. First force plate; 16. Slide plate; 17. Second force plate; 18. Support plate; 19. Electromagnetic plate; 20. Rotating shaft; 21. Limiting hole; 22. Handle; 23. Pull handle; 24. Sliding hole; 25. Magnetic layer. Detailed Implementation

[0025] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0026] First implementation method:

[0027] Figures 1-4A cutting device for processing plastic film is shown, comprising a support 1. The device is characterized by: symmetrically fixedly connected first support plates 3 at the upper front end of the support 1; a roller shaft rotatably connected between the two first support plates 3; symmetrically fixedly connected second support plates 10 below the first support plates 3 at the front end of the support 1; a roller shaft 9 rotatably connected between the two second support plates 10; plastic film 4 is wound around the surface of the first support plates 3 and extends to the surface of the roller shaft 9; symmetrically fixedly connected connecting plates 5 outside the second support plates 10 at the front end of the support 1; a groove 6 is formed on the connecting plate 5; an upper clamping assembly 7 and a lower clamping assembly 8 are connected within the groove 6; the upper clamping assembly 7 includes a first positioning plate 704 fixed within the groove 6; a first sliding groove 705 is formed at the end of the first positioning plate 704 away from the groove 6; symmetrically arranged sliders are connected inside the first sliding groove 705, and each slider's surface is connected to... The first clamping plate 701 is fixedly connected to the two sliders by a compression spring 702. Electromagnetic plates 19 are installed on the surfaces of the two first clamping plates 701 that are close to each other, and the two electromagnetic plates 19 attract each other. An arc plate 703 is fixedly connected to the top of the first clamping plate 701 near the bracket 1. The lower clamping assembly 8 includes a second positioning plate 802 that is slidably connected in the groove 6 and located below the upper clamping assembly 7. A first electric slide rail is fixedly connected in the groove 6, and the second positioning plate 802 is slidably connected to the electric slide rail. A second clamping plate 801 with the same structure as the first clamping plate 701 is symmetrically slidably connected in the second positioning plate 802. The plastic film 4 passes between the two upper clamping assemblies 7 and the two lower clamping assemblies 8. A first force plate 15 is fixedly connected between the two connecting plates 5 at the back of the plastic film 4. A cutting blade 14 is slidably connected to one end of the first force plate 15 near the plastic film 4.

[0028] One of the second support plates 10 is fixedly connected to a support plate 2 on its outer side. A servo motor 11 is fixedly connected to the support plate 2, and the output end of the servo motor 11 is rotatably connected to the roller 9. A second slide groove 13 is opened on the surface of the first force plate 15 near the plastic film 4. A second electric slide rail is fixedly connected in the second slide groove 13, and the cutting blade 14 is slidably connected to the second electric slide rail. A controller for controlling the first electric slide rail, the second electric slide rail, and the servo motor 11 is fixedly connected to 1.

[0029] Working principle: The servo motor 11 drives the roller 9 to wind up the plastic film 4. When it needs to be cut after being wound to a certain length, the electromagnetic plate 19 can be activated by the controller, so that the two first clamping plates 701 attract each other and clamp the plastic film 4. At the same time, by controlling the magnetic force of the electromagnetic plate 19 located on the second clamping plate 801, it is made less than the magnetic attraction force of the electromagnetic plates 19 on the surfaces of the two first clamping plates 701. Thus, when the two second clamping plates 801 attract each other and clamp the plastic film 4, the surface of the plastic film 4 can be smoothed when it slides down. At this time, the first... The electric slide rail drives the second positioning plate 802 to move the second clamping plate 801 downward, smoothing the plastic film 4. After smoothing, the magnetic force of the electromagnetic plate 19 on the second clamping plate 801 is increased. At this time, the two second clamping plates 801 are located at the lower end of the groove 6, so that the two second clamping plates 801 clamp and fix the plastic film 4. At this time, the plastic film 4 between the first clamping plate 701 and the second clamping plate 801 is in a taut and flat state. At this time, the second electric slide rail can be turned on to drive the cutting blade 14 to cut the plastic film 4, and the horizontal displacement range of the cutting blade 14 is not less than the cross-section of the plastic film 4.

[0030] By setting the upper clamping component 7 and the lower clamping component 8, the upper and lower parts of the plastic film 4 can be fixed and kept taut and flat, so that wrinkles or shifts will not occur during cutting.

[0031] Second implementation method:

[0032] Figures 1-2 and Figures 5-7 A second force-bearing plate 17 is fixedly connected between two connecting plates 5 at the front side of the plastic film 4. A sliding hole 24 is opened in the middle of the second force-bearing plate 17, and a sliding plate 16 is slidably connected in the sliding hole 24. A support plate 18 is fixedly connected to one end of the sliding plate 16 near the plastic film 4, and a strip plate 12 is fixedly connected to the other end. A handle 23 is fixedly connected to the end of the strip plate 12 away from the support plate 18. Magnetic layers 25 are arranged on both ends of the second force-bearing plate 17, the support plate 18 and the surface of the strip plate 12, and the two magnetic layers 25 arranged in the same way attract each other. Two second support plates 10 are symmetrically provided with round holes. A through hole is provided on the side end of the scroll 9, and the diameter of the through hole is the same as that of the round hole. A rotating shaft 20 with a handle 22 is inserted into the round hole and the through hole. A limit hole 21 is opened on the side end of the rotating shaft 20. A limit block matching the limit hole 21 is fixedly connected to the output end of the servo motor 11, and the limit hole 21 and the limit block are engaged.

[0033] Working principle: Before winding up the plastic film 4, select a spool 9 and place it between the two second support plates 10 so that the perforation is aligned with the round hole. Then, hold the handle 22 and insert the rotating shaft 20 into the round hole and the perforation from the side of the second support plate 10 so that the limiting hole 21 engages with the limiting block on the servo motor 11. Then, the servo motor 11 can be turned on to drive the spool 9 to wind up the plastic film 4.

[0034] The magnetic attraction between the second force plate 17 and the abutment plate 18 is less than the magnetic attraction between the strip plate 12 and the second force plate 17. In the initial state, the second force plate 17 and the abutment plate 18 attract each other. When cutting the plastic film 4, after positioning it by the upper clamping component 7 and the lower clamping component 8, the strip plate 12 can be pushed by holding the handle 23. The slide plate 16 moves in the sliding hole 24, so that the abutment plate 18 slides and fits against the plastic film 4. At this time, the strip plate 12 is attracted and positioned by the second force plate 17 through the magnetic layer 25. When the cutting blade 14 cuts the plastic film 4, it contacts the abutment plate 18 to better apply force and avoid wrinkles that cause deviation.

[0035] The detachable design of the rotating shaft 20 and the servo motor 11 facilitates the disassembly and assembly of the roller 9, and the abutment plate 18 facilitates the application of force by the cutting blade 14, thus better cutting the plastic film 4.

[0036] In light of current practical needs, the above-described embodiments adopted in this application are not limited to this scope of protection. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A cutting apparatus for processing plastic film, comprising a support (1), characterized in that: A first support plate (3) is symmetrically fixedly connected above the front end of the bracket (1). A roller is rotatably connected between the two first support plates (3). A second support plate (10) is symmetrically fixedly connected below the first support plate (3) at the front end of the bracket (1). A roller (9) is rotatably connected between the two second support plates (10). A plastic film (4) is wrapped around the surface of the first support plate (3) and extends to the surface of the roller (9). A roller is symmetrically fixedly connected outside the second support plate (10) at the front end of the bracket (1). A connecting plate (5) has a groove (6) on it. An upper clamping assembly (7) and a lower clamping assembly (8) are connected in the groove (6). The upper clamping assembly (7) includes a first positioning plate (704) fixed in the groove (6). A first sliding groove (705) is provided at the end of the first positioning plate (704) away from the groove (6). A symmetrically arranged slider is connected inside the first sliding groove (705), and a first clamping plate (701) is connected to the surface of each slider. A compression spring (702) is fixedly connected between the sliders. Electromagnetic plates (19) are installed on the surfaces of the two first clamping plates (701) that are close to each other, and the two electromagnetic plates (19) attract each other. An arc plate (703) is fixedly connected to the top of the first clamping plate (701) near the bracket (1). The lower clamping assembly (8) includes a second positioning plate (802) that is slidably connected in the groove (6) and located below the upper clamping assembly (7). A first electric slide rail is fixedly connected in the groove (6). The second positioning plate (802) is slidably connected to the electric slide rail. The second positioning plate (802) is symmetrically slidably connected to a second clamping plate (801) with the same structure as the first clamping plate (701). The plastic film (4) passes between the two upper clamping assemblies (7) and the two lower clamping assemblies (8). The first force plate (15) is fixedly connected between the two connecting plates (5) at the back of the plastic film (4). The first force plate (15) is slidably connected to a cutting blade (14) at one end near the plastic film (4).

2. The cutting equipment for processing plastic film according to claim 1, characterized in that: The first force plate (15) has a second groove (13) on the side of the plastic film (4) and a second electric slide rail is fixedly connected in the second groove (13), and the cutting blade (14) is slidably connected to the second electric slide rail.

3. The cutting equipment for processing plastic film according to claim 1, characterized in that: A second force plate (17) is fixedly connected between the two connecting plates (5) at the front side of the plastic film (4). A sliding hole (24) is provided in the upper middle part of the second force plate (17), and a sliding plate (16) is slidably connected in the sliding hole (24).

4. The cutting equipment for processing plastic film according to claim 3, characterized in that: The skateboard (16) has a stop plate (18) fixedly connected to one end near the plastic film (4), and a strip plate (12) fixedly connected to the other end. A handle (23) is fixedly connected to the end of the strip plate (12) away from the stop plate (18).

5. The cutting equipment for processing plastic film according to claim 4, characterized in that: Magnetic layers (25) are arranged on both ends of the second force plate (17), the abutment plate (18) and the surface of the strip plate (12), and the two magnetic layers (25) arranged in the same way attract each other.

6. The cutting equipment for processing plastic film according to claim 1, characterized in that: Two second support plates (10) are symmetrically provided with round holes, and the side end of the scroll (9) is provided with a through hole, and the diameter of the through hole is the same as that of the round hole.

7. The cutting equipment for processing plastic film according to claim 1, characterized in that: One of the second support plates (10) is fixedly connected to a support plate (2) on its outer side. A servo motor (11) is fixedly connected to the support plate (2), and the output end of the servo motor (11) is rotatably connected to the scroll (9).

8. A cutting device for processing plastic film according to claim 7, characterized in that: A rotating shaft (20) with a handle (22) is inserted into the round hole and the through hole. A limit hole (21) is opened on the side end of the rotating shaft (20). A limit block that matches the limit hole (21) is fixedly connected to the output end of the servo motor (11), and the limit hole (21) and the limit block are engaged.

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