Edge cutting device for plastic film production
The cutting edge device addresses uneven cutting and debris management by using adjustable frames and a collection system, ensuring precise cutting and efficient handling of different film sizes and types.
Patent Information
- Application Number
- CN202421994890.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-16
AI Technical Summary
During the cutting process of the existing plastic film edge cutting device, there are problems such as uneven plastic film, wrinkles, poor dimensional adaptability, plastic film displacement, low cutting efficiency and scattering of debris.
The edge cutting device including an adjustment guide mechanism, a general positioning mechanism and a collection barrier mechanism is adopted to adjust the U-frame position, the guide roller tension and the barrier plate to collect debris through electric push rods and screws, so as to realize the positioning edge cutting, tension adjustment and debris collection of plastic films of different sizes.
Accurate edge cutting of plastic films of different sizes is achieved, cutting efficiency is improved, fragments are scattered, and the adaptability and operation convenience of the device are enhanced.
Smart Images
Figure CN223099300U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic film production, in particular to a trimming device for plastic film production. Background Technique
[0002] Plastics are widely used. During the production of plastic films, cutting is required. During the cutting process, the cutting burrs should be minimized, and the cutting should be kept straight. However, the cutting equipment has poor cutting effects during cutting, the burr cutting is inaccurate, and the cutting efficiency is not high. Therefore, a trimming device for plastic film production is needed.
[0003] During the trimming process of the existing trimming device for plastic films, problems such as uneven plastic films and wrinkles often occur, resulting in uneven cutting of the plastic films, seriously affecting the finished product quality of the plastic films. In addition, the existing trimming device has some disadvantages to a certain extent. Since the sizes of plastic films are different, a higher universality requirement is imposed on the trimming device during trimming. The existing trimming device is inconvenient to position and trim plastic film bodies of different sizes during use, which makes it impossible to adjust the position of the U-shaped frame according to the size of the plastic film body when the trimming device is in use, so that the trimming device cannot meet the trimming requirements for plastic film bodies of different sizes; plastic films are prone to displacement during trimming. Therefore, during the use of the trimming device, the plastic film body needs to be adjusted and guided. The existing trimming device is inconvenient to adjust and guide the plastic film body during use, which makes it inconvenient to adjust the tension of the plastic film body when the trimming device is in use, so that when the trimming device trims the plastic film body, it is not convenient and fast enough; some plastic film fragments will be generated during the use of the trimming device, and these plastic fragments are prone to fly randomly. The existing trimming device does not have the function of blocking and collecting plastic film fragments during use, which easily leads to the phenomenon that the plastic film fragments are scattered and not easy to clean during the use of the trimming device. Content of the Utility Model
[0004] The purpose of the utility model is to provide a trimming device for plastic film production, so as to solve the problems put forward in the above background technique that it is inconvenient to position and trim plastic film bodies of different sizes, inconvenient to adjust and guide the plastic film body, and does not have the function of blocking and collecting plastic film fragments during the use of the trimming device.
[0005] To achieve the above object, the present utility model provides the following technical solution: A trimming device for plastic film production, comprising a device box body, on the surface of the device box body, control buttons are installed, inside the device box body, a conveyor belt is installed, both ends of the conveyor belt respectively extend to the outside of the device box body, on the inner walls of the device box body, first electric push rods are installed, the input end of the first electric push rod is electrically connected to the output end of the control button, the output end of the first electric push rod is installed with an L-shaped frame, inside the device box body, a plastic film body is provided, the plastic film body is located between adjacent U-shaped frames, inside the device box body, a guiding roller for guiding the plastic film body is provided, the guiding roller is rotatably matched with the inner wall of the device box body, the surface of the guiding roller is in contact with the surface of the plastic film body at the bottom position, on the surface at the top position of the conveyor belt, a collection frame for collecting plastic film debris is installed, the collection frame is located below the plastic film body, on the inner wall of the device box body and on the surface of the guiding roller, an adjusting and guiding mechanism is provided, the adjusting and guiding mechanism internally includes a fixing screw, a fixing cavity, a guiding groove, an adjusting screw cylinder and a guiding block, on the inner wall of the L-shaped frame and on the surface of the U-shaped frame, a general positioning mechanism is provided, the general positioning mechanism internally includes a fixing cylinder, a third electric push rod and a general positioning part, on the surface of the collection frame, a collection blocking mechanism is provided, the collection blocking mechanism internally includes a blocking plate, a positioning clip and a collection blocking group.
[0006] Preferably, a U-shaped frame is arranged inside the L-shaped frame, on the surfaces of the U-shaped frames, second electric push rods are installed, the input end of the second electric push rod is electrically connected to the output end of the control button, one end of the second electric push rod extends into the inside of the U-shaped frame and is installed with a cutting knife.
[0007] Preferably, fixing cavities are respectively opened on the inner walls of the device box body, inside the fixing cavities, fixing screws are installed, on the surface of the fixing screws, adjusting screw cylinders are threadedly sleeved, the surface of the adjusting screw cylinder is rotatably matched with the surface of the guiding roller.
[0008] Preferably, on the surfaces on both sides of the adjusting screw cylinder, guiding blocks are installed, on the inner walls of the device box body, guiding grooves are respectively opened, the surfaces of the guiding grooves and the guiding blocks are slidably matched with each other.
[0009] Preferably, the general positioning part is arranged on the inner wall of the L-shaped frame and on the surface of the U-shaped frame, the general positioning part is composed of a moving column and a fixing groove, on the inner walls of the L-shaped frames, fixing cylinders are installed, inside the fixing cylinders, third electric push rods are installed, the input end of the third electric push rod is electrically connected to the output end of the control button.
[0010] Preferably, a moving column is arranged inside the fixed cylinder. One end of the moving column extends to the outside of the fixed cylinder and is fixed to the surface of the U-shaped frame. The output end of the third electric push rod is fixed to the surface of the moving column. Fixing grooves for guiding the moving column are formed in the inner walls of the moving column, and the fixing grooves are in sliding fit with the surface of the moving column.
[0011] Preferably, the collection and blocking group is arranged on the surface of the collection box. The collection and blocking group is composed of an arc-shaped clamping member, a positioning clamping groove and a stretching spring. Baffles for blocking plastic film fragments are arranged at the tops of the collection boxes. Positioning clamping members are installed on the surfaces at the bottom positions of the baffles. Positioning clamping grooves are formed in the surfaces of the collection boxes, and the positioning clamping grooves are in clamping fit with the surfaces of the positioning clamping members.
[0012] Preferably, grooves are formed in the surfaces of the positioning clamping members, and arc-shaped clamping members are arranged inside the grooves. The arc-shaped clamping members are in sliding fit with the inner walls of the grooves. The arc-shaped clamping members are in clamping fit with the inner walls of the collection boxes. Stretching springs are installed on the surfaces of the arc-shaped clamping members, and one ends of the stretching springs are fixed to the inner walls of the grooves.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The edge trimming device for plastic film production not only enables the position of the U-shaped frame to be adjusted according to the size of the plastic film body when the edge trimming device is used, so that the edge trimming device can meet the edge trimming requirements for plastic film bodies of different sizes, enables the tension of the plastic film body to be adjusted when the edge trimming device is used, and further enables the conveying speed of the plastic film body to be adjusted, making it more convenient and fast when the edge trimming device trims the plastic film body, but also enables the plastic film fragments to be centrally collected inside the collection box when the edge trimming device is used, avoiding the phenomenon that the plastic film fragments are scattered and not easy to clean during the use of the edge trimming device;
[0014] 1. By providing a general positioning mechanism, controlling the third electric push rod inside the fixed cylinder to work, driving the moving column to slide inside the fixed cylinder under the action of the third electric push rod. At this time, the moving column slides inside the fixing groove, and the moving column is guided by the fixing groove. When the moving column moves, the moving column drives the U-shaped frame to move to a specified position for positioning and trimming the plastic film body, realizing the function of positioning and trimming plastic film bodies of different sizes through the edge trimming device, so that the position of the U-shaped frame can be adjusted according to the size of the plastic film body when the edge trimming device is used, and the edge trimming device can meet the edge trimming requirements for plastic film bodies of different sizes;
[0015] 2. By setting an adjustment and guiding mechanism, the user can adjust the tension of the plastic film body as needed. The user turns the adjustment screw cylinder on the surface of the fixed screw through the fixed cavity, so that the adjustment screw cylinder drives the guiding block to slide inside the guiding groove. Under the combined action of the guiding block and the guiding groove, the adjustment screw cylinder is guided. When the adjustment screw cylinder moves, the adjustment screw cylinder drives the guiding roller to adjust and move to the specified position, so that the guiding roller can adjust the tension when the plastic film body moves, realizing the function of the trimming device to adjust and guide the plastic film body. Thus, when the trimming device is used, the tension of the plastic film body can be adjusted, and further the conveying speed of the plastic film body can be adjusted, making it more convenient and fast when the trimming device trims the plastic film body.
[0016] 3. By setting a collection and blocking mechanism, the user places the baffle plates on the surface of the collection box respectively, so that the baffle plates drive the positioning fasteners to be clamped into the positioning card slots. Under the combined action of the positioning fasteners and the positioning card slots, the baffle plates are positioned and installed. At this time, under the elastic force of the extension spring in the groove, the arc-shaped fastener is driven to move, so that the arc-shaped fastener is clamped into the corresponding collection box. Under the combined action of the arc-shaped fastener and the extension spring, the baffle plates are prevented from loosening. Under the action of the baffle plates, the plastic film fragments are blocked and guided, so that the plastic film fragments can fall into the collection box and will not fall onto the surface of the conveyor belt, realizing the function of the trimming device to block and collect the plastic film fragments. Thus, when the trimming device is used, the plastic film fragments can be centrally collected in the collection box, avoiding the phenomenon that the plastic film fragments are scattered and not easy to clean during the use of the trimming device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;
[0018] Figure 2 is a front sectional structure schematic diagram of the present utility model;
[0019] Figure 3 is of the present utility model Figure 2 is an enlarged structure schematic diagram of the adjustment and guiding mechanism therein;
[0020] Figure 4 is of the present utility model Figure 2 is an enlarged structure schematic diagram of the general positioning mechanism therein;
[0021] Figure 5 is an enlarged structure schematic diagram of the collection and blocking mechanism of the present utility model.
[0022] In the figure: 1. Device box body; 101. Conveyor belt; 102. L-shaped frame; 103. First electric push rod; 104. Control button; 105. Collection box; 106. Cutting knife; 107. Plastic film body; 108. Second electric push rod; 109. U-shaped frame; 110. Guide roller; 2. Adjusting and guiding mechanism; 21. Fixed screw; 22. Fixed cavity; 23. Guide groove; 24. Adjusting screw cylinder; 25. Guide block; 3. Universal positioning mechanism; 31. Fixed cylinder; 32. Third electric push rod; 33. Universal positioning part; 331. Moving column; 332. Fixed groove; 4. Collection and blocking mechanism; 41. Blocking plate; 42. Positioning card; 43. Collection and blocking group; 431. Arc-shaped card; 432. Positioning card slot; 433. Extension spring. Detailed implementation manners
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] The structure of a trimming device for plastic film production provided by the present utility model is as Figure 1 and Figure 2As shown, it includes a device box body 1. A control button 104 is installed on the surface of the device box body 1. The model of the control button 104 can be selected from the LA series. A conveyor belt 101 is installed inside the device box body 1. Both ends of the conveyor belt 101 extend to the outside of the device box body 1. First electric push rods 103 are installed on the inner walls of the device box body 1. The model of the first electric push rod 103 can be selected from the DG series. The input end of the first electric push rod 103 is electrically connected to the output end of the control button 104. An L-shaped frame 102 is installed at the output end of the first electric push rod 103. A U-shaped frame 109 is arranged inside the L-shaped frame 102. Second electric push rods 108 are installed on the surfaces of the U-shaped frame 109. The model of the second electric push rod 108 can be selected from the DG series. The input end of the second electric push rod 108 is electrically connected to the output end of the control button 104. One end of the second electric push rod 108 extends into the U-shaped frame 109 and a cutting knife 106 is installed. A plastic film body 107 is arranged inside the device box body 1. The plastic film body 107 is located between adjacent U-shaped frames 109. A guiding roller 110 for guiding the plastic film body 107 is arranged inside the device box body 1. The guiding roller 110 is rotatably matched with the inner wall of the device box body 1. The surface of the guiding roller 110 is in contact with the surface of the plastic film body 107 at the bottom position. A collection box 105 for collecting plastic film debris is installed on the surface at the top position of the conveyor belt 101. The collection box 105 is located below the plastic film body 107.
[0025] Further, as Figure 2 and Figure 3 shown, adjustment and guiding mechanisms 2 are arranged on the inner walls of the device box body 1 and the surfaces of the guiding rollers 110. The adjustment and guiding mechanism 2 includes a fixing screw 21, a fixing cavity 22, a guiding groove 23, an adjusting screw cylinder 24 and a guiding block 25. Fixing cavities 22 are formed on the inner walls of the device box body 1. A fixing screw 21 is installed inside the fixing cavity 22. An adjusting screw cylinder 24 is sleeved on the surface of the fixing screw 21 in a threaded manner. The surface of the adjusting screw cylinder 24 is rotatably matched with the surface of the guiding roller 110. Guiding blocks 25 are installed on the surfaces on both sides of the adjusting screw cylinder 24. Guiding grooves 23 are formed on the inner walls of the device box body 1. The guiding grooves 23 are slidably matched with the surfaces of the guiding blocks 25.
[0026] During implementation, the user adjusts the tension of the plastic film body 107 as needed. The user turns the adjusting screw cylinder 24 on the surface of the fixing screw 21 through the fixing cavity 22, so that the adjusting screw cylinder 24 drives the guiding block 25 to slide inside the guiding groove 23. Under the combined action of the guiding block 25 and the guiding groove 23, the adjusting screw cylinder 24 is guided. When the adjusting screw cylinder 24 moves, the adjusting screw cylinder 24 drives the guiding roller 110 to adjust and move to a specified position, so that the guiding roller 110 can adjust the tension when the plastic film body 107 moves, so as to realize the function of the edge cutting device to adjust and guide the plastic film body 107.
[0027] Further, as Figure 2 and Figure 4 shown, universal positioning mechanisms 3 are provided on the inner wall of the L-shaped frame 102 and the surface of the U-shaped frame 109. The inside of the universal positioning mechanism 3 includes a fixed cylinder 31, a third electric push rod 32 and a universal positioning part 33. The universal positioning part 33 is provided on the inner wall of the L-shaped frame 102 and the surface of the U-shaped frame 109. The universal positioning part 33 is composed of a moving column 331 and a fixed groove 332. Fixed cylinders 31 are installed on the inner walls of the L-shaped frames 102. A third electric push rod 32 is installed inside the fixed cylinder 31. The model of the third electric push rod 32 can be selected from the DG series. The input end of the third electric push rod 32 is electrically connected to the output end of the control button 104. A moving column 331 is arranged inside the fixed cylinder 31. One end of the moving column 331 extends to the outside of the fixed cylinder 31 and is fixed to the surface of the U-shaped frame 109. The output end of the third electric push rod 32 is fixed to the surface of the moving column 331. Fixed grooves 332 for guiding the moving column 331 are formed on the inner walls of the moving column 331. The fixed grooves 332 and the surface of the moving column 331 are slidably matched with each other.
[0028] During implementation, the third electric push rod 32 inside the fixed cylinder 31 is controlled to work. Under the action of the third electric push rod 32, the moving column 331 is driven to slide inside the fixed cylinder 31. At this time, the moving column 331 slides inside the fixed groove 332. Under the action of the fixed groove 332, the moving column 331 is guided. When the moving column 331 moves, the moving column 331 drives the U-shaped frame 109 to move to a specified position to perform positioning edge cutting on the plastic film body 107, so as to realize the function of the edge cutting device to perform positioning edge cutting on plastic film bodies 107 of different sizes.
[0029] Further, as Figure 2 and Figure 5As shown in the figure, a collection and blocking mechanism 4 is arranged on the surface of the collection box 105. The interior of the collection and blocking mechanism 4 includes a baffle 41, a positioning fixture 42 and a collection and blocking group 43. The collection and blocking group 43 is arranged on the surface of the collection box 105. The collection and blocking group 43 is composed of an arc-shaped fixture 431, a positioning slot 432 and a stretching spring 433. Baffles 41 for blocking plastic film fragments are arranged on the tops of the collection boxes 105. Positioning fixtures 42 are installed on the surfaces at the bottom positions of the baffles 41. Positioning slots 432 are formed on the surfaces of the collection boxes 105. The surfaces of the positioning slots 432 and the positioning fixtures 42 are engaged and matched with each other. Grooves are formed on the surfaces of the positioning fixtures 42, and arc-shaped fixtures 431 are arranged inside the grooves. The arc-shaped fixtures 431 are slidably matched with the inner walls of the grooves. The arc-shaped fixtures 431 are engaged and matched with the inner walls of the collection boxes 105. Stretching springs 433 are installed on the surfaces of the arc-shaped fixtures 431. One ends of the stretching springs 433 are fixed to the inner walls of the grooves.
[0030] During implementation, the user places the baffles 41 on the surfaces of the collection boxes 105 respectively, so that the baffles 41 drive the positioning fixtures 42 to be inserted into the positioning slots 432. Under the combined action of the positioning fixtures 42 and the positioning slots 432, the baffles 41 are positioned and installed. At this time, under the elastic force of the stretching springs 433 inside the grooves, the arc-shaped fixtures 431 are driven to move, so that the arc-shaped fixtures 431 are inserted into the corresponding collection boxes 105. Under the combined action of the arc-shaped fixtures 431 and the stretching springs 433, the baffles 41 are prevented from loosening. Under the action of the baffles 41, the plastic film fragments are blocked and guided, so that the plastic film fragments can fall into the collection boxes 105 and will not fall onto the surface of the conveyor belt 101, so as to realize the function of the trimming device for blocking and collecting the plastic film fragments.
[0031] Working principle: When in use, first place the device box body 1 at a specified position. The user places the plastic film body 107 to be trimmed between the U-shaped frames 109. The user adjusts the distance between the U-shaped frames 109 according to the size of the plastic film body 107. The user operates the control button 104, so that the control button 104 controls the first electric push rod 103 on the inner wall of the device box body 1 to work. Under the action of the first electric push rod 103, the L-shaped frame 102 is driven to move downward to the required position. The user operates the control button 104, so that the control button 104 controls the second electric push rod 108 to work. Under the action of the second electric push rod 108, the cutting knife 106 is driven to move downward, so that the cutting knife 106 moves to contact the surface of the plastic film body 107. Under the action of the cutting knife 106, the two sides of the plastic film body 107 are trimmed. Under the action of the guide rollers 110, the plastic film body 107 is supported and guided.
[0032] Subsequently, the user operates the control button 104, causing the control button 104 to control the operation of the third electric push rod 32 inside the fixed cylinder 31. Under the action of the third electric push rod 32, the moving column 331 slides inside the fixed cylinder 31. At this time, the moving column 331 slides inside the fixed groove 332, and the fixed groove 332 guides the moving column 331. When the moving column 331 moves, the moving column 331 drives the U-shaped frame 109 to move to a specified position to perform positioning and trimming on the plastic film body 107, so as to realize the function of the trimming device for positioning and trimming plastic film bodies 107 of different sizes. Thus, when the trimming device is used, the position of the U-shaped frame 109 can be adjusted according to the size of the plastic film body 107, enabling the trimming device to meet the trimming requirements for plastic film bodies 107 of different sizes.
[0033] Subsequently, according to the need, the user adjusts the tension of the plastic film body 107. The user turns the adjusting screw cylinder 24 on the surface of the fixing screw 21 through the fixing cavity 22, causing the adjusting screw cylinder 24 to drive the guiding block 25 to slide inside the guiding groove 23. The guiding block 25 and the guiding groove 23 jointly guide the adjusting screw cylinder 24. When the adjusting screw cylinder 24 moves, the adjusting screw cylinder 24 drives the guiding roller 110 to adjust and move to a specified position, enabling the guiding roller 110 to adjust the tension when the plastic film body 107 moves, so as to realize the function of the trimming device for adjusting and guiding the plastic film body 107. Thus, when the trimming device is used, the tension of the plastic film body 107 can be adjusted, and furthermore, the conveying speed of the plastic film body 107 can be adjusted, making it more convenient and fast for the trimming device to trim the plastic film body 107.
[0034] Subsequently, the user places the baffle plates 41 on the surface of the collection box 105 respectively, causing the baffle plates 41 to drive the positioning fasteners 42 to be stuck into the positioning card slots 432. The positioning fasteners 42 and the positioning card slots 432 jointly position and install the baffle plates 41. At this time, under the elastic force of the extension spring 433 inside the groove, the arc-shaped fastener 431 is driven to move, causing the arc-shaped fastener 431 to be stuck into the corresponding collection box 105. The arc-shaped fastener 431 and the extension spring 433 jointly prevent the baffle plates 41 from loosening. The baffle plates 41 block and guide the plastic film fragments, enabling the plastic film fragments to fall into the collection box 105 instead of falling onto the surface of the conveyor belt 101, so as to realize the function of the trimming device for blocking and collecting the plastic film fragments. Thus, when the trimming device is used, the plastic film fragments can be centrally collected inside the collection box 105, avoiding the phenomenon that the plastic film fragments are scattered and not easy to clean during the use of the trimming device, and finally completing the use work of the trimming device.
[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
Claims
1. A trimming device for plastic film production, comprising a device box body (1), characterized in that: A control button (104) is mounted on the surface of the device box body (1). A conveyor belt (101) is installed inside the device box body (1). Both ends of the conveyor belt (101) extend to the outside of the device box body (1). First electric push rods (103) are installed on the inner walls of the device box body (1). The input end of the first electric push rod (103) is electrically connected to the output end of the control button (104). An L-shaped frame (102) is installed at the output end of the first electric push rod (103). A plastic film body (107) is arranged inside the device box body (1). The plastic film body (107) is located between adjacent U-shaped frames (109). Guide rollers (110) for guiding the plastic film body (107) are arranged inside the device box body (1). The guide rollers (110) are rotatably matched with the inner walls of the device box body (1). The surface of the guide roller (110) is in contact with the surface of the plastic film body (107) at the bottom position. A collection frame (105) for collecting plastic film debris is installed on the surface at the top position of the conveyor belt (101). The collection frame (105) is located below the plastic film body (107). Adjusting and guiding mechanisms (2) are arranged on the inner walls of the device box body (1) and the surfaces of the guide rollers (110). The adjusting and guiding mechanism (2) includes a fixing screw (21), a fixing cavity (22), a guiding groove (23), an adjusting screw cylinder (24) and a guiding block (25). Universal positioning mechanisms (3) are arranged on the inner walls of the L-shaped frame (102) and the surfaces of the U-shaped frames (109). The universal positioning mechanism (3) includes a fixing cylinder (31), a third electric push rod (32) and a universal positioning part (33). A collection and blocking mechanism (4) is arranged on the surface of the collection frame (105). The collection and blocking mechanism (4) includes a blocking plate (41), a positioning clip (42) and a collection and blocking group (43).
2. The trimming device for plastic film production according to claim 1, characterized in that: A U-shaped frame (109) is arranged inside the L-shaped frame (102). Second electric push rods (108) are installed on the surfaces of the U-shaped frames (109). The input end of the second electric push rod (108) is electrically connected to the output end of the control button (104). One end of the second electric push rod (108) extends into the U-shaped frame (109) and a cutting knife (106) is installed at this end.
3. The edge trimming device for plastic film production according to claim 1, characterized in that: Fixing cavities (22) are formed on the inner walls of the device box body (1). A fixing screw (21) is installed inside the fixing cavity (22). An adjusting screw cylinder (24) is sleeved on the surface of the fixing screw (21) in a threaded manner. The surface of the adjusting screw cylinder (24) is rotatably matched with the surface of the guide roller (110).
4. A trimming device for plastic film production according to claim 3, characterized in that: Guide blocks (25) are installed on the surfaces on both sides of the adjusting screw cylinder (24). Guide grooves (23) are formed on the inner walls of the device box body (1). The surfaces of the guide grooves (23) are slidably matched with the surfaces of the guide blocks (25).
5. The edge trimming device for plastic film production according to claim 1, characterized in that: The general positioning part (33) is arranged on the inner wall of the L-shaped frame (102) and the surface of the U-shaped frame (109). The general positioning part (33) is composed of a moving column (331) and a fixing groove (332). Fixing cylinders (31) are installed on the inner walls of the L-shaped frame (102). A third electric push rod (32) is installed inside the fixing cylinder (31). The input end of the third electric push rod (32) is electrically connected to the output end of the control button (104).
6. The trimming device for plastic film production according to claim 5, characterized in that: A moving column (331) is arranged inside the fixing cylinder (31). One end of the moving column (331) extends to the outside of the fixing cylinder (31) and is fixed to the surface of the U-shaped frame (109). The output end of the third electric push rod (32) is fixed to the surface of the moving column (331). Fixing grooves (332) for guiding the moving column (331) are formed in the inner walls of the moving column (331). The fixing grooves (332) are in sliding fit with the surface of the moving column (331).
7. A trimming device for plastic film production according to claim 1, characterized in that: The collection and blocking group (43) is arranged on the surface of the collection box (105). The collection and blocking group (43) is composed of an arc-shaped clamping part (431), a positioning clamping groove (432) and a stretching spring (433). Baffles (41) for blocking plastic film fragments are arranged on the tops of the collection boxes (105). Positioning clamping parts (42) are installed on the surfaces at the bottom positions of the baffles (41). Positioning clamping grooves (432) are formed in the surfaces of the collection boxes (105). The positioning clamping grooves (432) are in clamping fit with the surfaces of the positioning clamping parts (42).
8. A trimming device for plastic film production according to claim 7, characterized in that: Grooves are formed in the surfaces of the positioning clamping parts (42), and arc-shaped clamping parts (431) are arranged inside the grooves. The arc-shaped clamping parts (431) are in sliding fit with the inner walls of the grooves. The arc-shaped clamping parts (431) are in clamping fit with the inner walls of the collection boxes (105). Stretching springs (433) are installed on the surfaces of the arc-shaped clamping parts (431). One end of each stretching spring (433) is fixed to the inner wall of the groove.