A film cutting mechanism of a biodegradable film

Abstract

The utility model relates to biodegradable film production technical field, especially in kind of biodegradable film's cutting film mechanism, the upper end left side middle position department fixed connection of base has electric telescopic handle, the upper end fixed connection of electric telescopic handle has pressure gauge, the upper end fixed connection of pressure gauge has the support frame, the inboard rotation of support frame is connected with pressure roller, the upper end right side close to the middle position department fixed connection of base has the guide frame, the utility model discloses the effect that the controller is set up can set in advance the limiting value of pressure gauge, and in the process of constantly winding biodegradable film, with the stress resistance constantly improving, will make pressure constantly improve, and then make the pressure roller pressure into the pressure gauge, with the change of pressure will make the controller control electric telescopic handle to carry out adaptive telescopic, to make pressure can always control in the limited interval, avoid to biodegradable film cause the rupture of excessively high tension.

Description

Technical Field

[0001] This utility model relates to a membrane cutting mechanism for a biodegradable membrane, belonging to the field of biodegradable membrane production technology. Background Technology

[0002] Biodegradable film is a new type of mulch film that can be biodegraded and will not pollute the soil. It is mainly used for ground cover to increase soil temperature, retain soil moisture, maintain soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, thereby promoting plant growth. The production of biodegradable film requires a winding operation. After each roll is wound up, it needs to be replaced, which requires the biodegradable film to be cut after each roll is wound up.

[0003] The existing patent number CN221420187U describes a film-cutting mechanism for a biodegradable membrane. This device, by adding buffer springs, buffer blocks, and a flattening roller, allows the biodegradable membrane to transition from the upper surface of the flattening roller and adhere to its outer surface during use. The film-receiving mechanism applies pressure to the flattening roller during the film-pulling process, causing the buffer blocks on both sides to oscillate between the upper and lower sets of buffer springs, ensuring the film is pulled with appropriate force, thus facilitating film cutting. By adding a connecting groove, connecting slide, front shaft, rear shaft, and connector, the film-discharging roller passes through the front shaft, and then the connecting slide rail at the lower end of the connector slides forward along the connecting slide groove, allowing... The connecting plate is embedded in the connecting groove and the fitting post of the rear shaft is embedded in the fitting hole, which facilitates the disassembly and assembly of the film feeding roller. However, although a buffer spring is set in this device, it cannot effectively solve the tensile stress of the biodegradable film. It can only play an elastic support role, which can easily cause the biodegradable film to break due to excessive tension. In addition, when cutting the biodegradable film, although the right side can be fixed by the pressure plate, the left side is not equipped with a positioning mechanism. This can easily cause the unwound and taut biodegradable film to be in a loose state, which can easily lead to scattering and winding on the outside of the flattening roller, which is not conducive to the subsequent winding and use of the biodegradable film. Utility Model Content

[0004] The purpose of this invention is to provide a membrane cutting mechanism for a biodegradable membrane to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A biodegradable membrane cutting mechanism includes a base, a guide frame, and a cutting frame. An electric telescopic rod is fixedly connected to the middle position of the upper left side of the base. A pressure sensor is fixedly connected to the upper end of the electric telescopic rod, and a support frame is fixedly connected to the upper end of the pressure sensor. A pressure roller is rotatably connected to the inner side of the support frame. A guide frame is fixedly connected to the middle position of the upper right side of the base. A conveying support roller is rotatably connected to the lower inner side of the guide frame. A cutting frame is fixedly connected to the upper right side of the base. A hydraulic cylinder is fixedly connected to the middle position of the upper inner side of the cutting frame. A lifting support plate is fixedly connected to the lower end of the inner movable rod of the hydraulic cylinder, and a lifting blade is fixedly connected to the lower end of the lifting support plate.

[0007] Furthermore, the upper left side surface of the base is fixedly connected to fixed side plates at both the front and rear ends, and a limit slide rod is slidably connected to the upper inside of the fixed side plate. The limit slide rod is fixedly connected to the pressure sensor.

[0008] Furthermore, there are two fixed side plates. The front end of the fixed side plate located at the front end is fixedly connected to a controller, which is electrically connected to the electric telescopic rod and the pressure sensor respectively.

[0009] Furthermore, a stepper motor is fixedly connected to the lower side of the front end face of the guide frame, and the output shaft of the stepper motor is fixedly connected to the conveying support roller.

[0010] Furthermore, an adjusting screw is rotatably connected to the middle position of the upper inner side of the guide frame. A turntable is fixedly connected to the upper end of the adjusting screw. A lifting sleeve is spirally connected to the outer side of the adjusting screw. A lifting frame is fixedly connected to the lower end of the lifting sleeve. A lifting pressure roller is rotatably connected to the inner side of the lifting frame. A first limiting telescopic rod is fixedly connected to both the front and rear sides of the upper end of the lifting frame. The first limiting telescopic rod is fixedly connected to the guide frame.

[0011] Furthermore, anti-slip sleeves are fixedly connected to the outer surfaces of both the conveying support roller and the lifting pressure roller.

[0012] Furthermore, a second limiting telescopic rod is fixedly connected to both the front and rear sides of the upper inner side of the film cutting frame. The second limiting telescopic rod is fixedly connected to the lifting support plate. A fixed blade is fixedly connected to the middle position of the lower inner side of the film cutting frame. A guide roller is rotatably connected to the left side of the lower inner side of the film cutting frame.

[0013] The beneficial effects of this utility model are:

[0014] This invention incorporates a controller that pre-sets the pressure gauge's limit value. During the continuous winding of the biodegradable film, the increasing stress leads to a continuous increase in pressure, which is then transmitted to the pressure gauge by the pressure roller. The controller adjusts the electric telescopic rod according to the pressure changes, ensuring the pressure remains within the specified range and preventing excessive tension that could cause the biodegradable film to rupture. The invention utilizes the extension and retraction of a hydraulic cylinder to move the lifting support plate up and down, driving the lifting blades. These blades, in conjunction with the fixed blades, cut the biodegradable film. The rotation of the turntable causes the adjusting screw to rotate, and under the limiting action of the first limit telescopic rod, the lifting frame moves the lifting pressure roller up and down. This allows the lifting pressure roller and conveying support roller to clamp the biodegradable film, with anti-slip sleeves on the outer side for added grip. A stepper motor continuously conveys the biodegradable film, stopping during cutting and resuming afterward. This prevents the film from becoming loose and wrinkled due to loss of pressure on both sides after cutting, facilitating rewinding and reuse. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0016] Figure 1 This is a front view of a membrane cutting mechanism for a biodegradable membrane according to this utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the turntable, lifting sleeve and lifting frame of the film cutting mechanism of a biodegradable membrane according to this utility model;

[0018] Figure 3 This is a cross-sectional view of the installation structure of the conveying support roller and anti-slip sleeve of the film cutting mechanism of a biodegradable membrane according to this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the film cutting frame of the film cutting mechanism of the biodegradable membrane of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the hydraulic cylinder, lifting blade, and second limiting telescopic rod of the film cutting mechanism of a biodegradable membrane according to this utility model.

[0021] The following are the labels in the diagram: 1. Base; 2. Electric telescopic rod; 3. Pressure gauge; 4. Support frame; 5. Pressure roller; 6. Guide frame; 7. Conveying support roller; 8. Film cutting frame; 9. Hydraulic cylinder; 10. Lifting support plate; 11. Lifting blade; 12. Fixed side plate; 13. Limiting slide bar; 14. Stepper motor; 15. Adjusting screw; 16. Turntable; 17. Lifting sleeve; 18. Lifting frame; 19. Lifting pressure roller; 20. First limiting telescopic rod; 21. Anti-slip sleeve; 22. Second limiting telescopic rod; 23. Fixed blade; 24. Guide roller; 25. Controller. Detailed Implementation

[0022] 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.

[0023] Please refer to Example 1 Figures 1-5 This utility model provides a technical solution:

[0024] A biodegradable membrane cutting mechanism includes a base 1, a guide frame 6, and a cutting frame 8. An electric telescopic rod 2 is fixedly connected to the middle position of the upper left side of the base 1. A pressure sensor 3 is fixedly connected to the upper end of the electric telescopic rod 2. A support frame 4 is fixedly connected to the upper end of the pressure sensor 3. A pressure roller 5 is rotatably connected to the inner side of the support frame 4. Fixed side plates 12 are fixedly connected to both the front and rear ends of the upper left side of the base 1. A limiting slide rod 13 is slidably connected to the upper inner side of the fixed side plate 12. The limiting slide rod 13 is fixedly connected to the pressure sensor 3. There are two fixed side plates 12, with the front fixed side plate 12 being the fixed side plate 12. A controller 25 is fixedly connected to the front end of the side plate 12. The controller 25 is electrically connected to the electric telescopic rod 2 and the pressure tester 3. By setting the function of the controller 25, the limit value of the pressure tester 3 can be set in advance. During the continuous winding of the biodegradable membrane, the pressure will increase as the stress resistance increases, and the pressure of the pressure roller 5 will be transmitted into the pressure tester 3. As the pressure changes, the controller 25 will control the electric telescopic rod 2 to extend and retract adaptively so that the pressure can always be controlled within the limited range, avoiding excessive tension on the biodegradable membrane and causing it to rupture.

[0025] Please refer to Example 2 Figures 1-5The difference between this embodiment and Embodiment 1 is as follows: A guide frame 6 is fixedly connected to the upper right side of the base 1 near the middle position; a conveying support roller 7 is rotatably connected to the lower inner side of the guide frame 6; a film cutting frame 8 is fixedly connected to the upper right side of the base 1; a hydraulic cylinder 9 is fixedly connected to the middle position of the upper inner side of the film cutting frame 8; a lifting support plate 10 is fixedly connected to the lower end of the inner movable rod of the hydraulic cylinder 9; a lifting blade 11 is fixedly connected to the lower end of the lifting support plate 10; a stepper motor 14 is fixedly connected to the lower front face of the guide frame 6; and the output shaft of the stepper motor 14... A guide frame 6 is fixedly connected to the conveyor support roller 7. An adjusting screw 15 is rotatably connected to the upper middle position of the inner side of the guide frame 6. A turntable 16 is fixedly connected to the upper end of the adjusting screw 15. A lifting sleeve 17 is spirally connected to the outer side of the adjusting screw 15. A lifting frame 18 is fixedly connected to the lower end of the lifting sleeve 17. A lifting pressure roller 19 is rotatably connected to the inner side of the lifting frame 18. First limiting telescopic rods 20 are fixedly connected to the front and rear sides of the upper end of the lifting frame 18. The first limiting telescopic rods 20 are fixedly connected to the guide frame 6. The outer sides of the conveyor support roller 7 and the lifting pressure roller 19... Anti-slip sleeves 21 are fixedly connected to all surfaces. Second limiting telescopic rods 22 are fixedly connected to the front and rear sides of the upper inner side of the film cutting frame 8. The second limiting telescopic rods 22 are fixedly connected to the lifting support plate 10. A fixed blade 23 is fixedly connected to the middle position of the lower inner side of the film cutting frame 8. A guide roller 24 is rotatably connected to the left side of the lower inner side of the film cutting frame 8. The extension and retraction of the hydraulic cylinder 9 causes the lifting support plate 10 to move the lifting blade 11 up and down, cooperating with the fixed blade 23 to cut the biodegradable film. The adjustment screw is adjusted by rotating the turntable 16. The rod 15 can rotate, and under the limiting action of the first limiting telescopic rod 20, the lifting frame 18 can drive the lifting pressure roller 19 to move up and down, so that the lifting pressure roller 19 and the conveying support roller 7 can clamp the biodegradable film, and the anti-slip sleeve 21 provided on the outside can be used for anti-slip treatment. Then, the rotation of the stepper motor 14 can make the conveying support roller 7 continuously convey the biodegradable film, and stop when cutting the film. After cutting the film, it can be conveyed again, so as to avoid the loss of pressure on both sides after cutting the film and cause the biodegradable film to become loose and wrinkled, which is convenient for rewinding and reuse after cutting.

[0026] The working principle of this utility model is as follows: During use, the controller 25 allows for pre-setting the limit value of the pressure sensor 3. As the biodegradable membrane is continuously wound up, the pressure increases with the rising stress, thus transmitting the pressure from the pressure roller 5 into the pressure sensor 3. The controller 25 then controls the electric telescopic rod 2 to adaptively extend and retract, ensuring the pressure remains within the specified range and preventing excessive tension that could cause the biodegradable membrane to rupture. Furthermore, the extension and retraction of the hydraulic cylinder 9 allows the lifting support plate 10 to move the lifting blade 11 up and down, working in conjunction with the fixed blade 23 to... The biodegradable film is cut, and the rotation of the turntable 16 causes the adjusting screw 15 to rotate. Under the limiting action of the first limiting telescopic rod 20, the lifting frame 18 can drive the lifting pressure roller 19 to move up and down, so that the lifting pressure roller 19 and the conveying support roller 7 can clamp the biodegradable film. The anti-slip sleeve 21 on the outside is used for anti-slip treatment. The rotation of the stepper motor 14 causes the conveying support roller 7 to continuously convey the biodegradable film, and stops when cutting the film. After cutting, it can be conveyed again to avoid the loss of pressure on both sides after cutting, which would cause the biodegradable film to become loose and wrinkled, and facilitates the rewinding and reuse of the film after cutting.

[0027] 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 membrane cutting mechanism for a biodegradable membrane, comprising a base (1), a guide frame (6), and a cutting frame (8), characterized in that: An electric telescopic rod (2) is fixedly connected to the middle position of the upper left side of the base (1). A pressure sensor (3) is fixedly connected to the upper end of the electric telescopic rod (2). A support frame (4) is fixedly connected to the upper end of the pressure sensor (3). A pressure roller (5) is rotatably connected to the inner side of the support frame (4). A guide frame (6) is fixedly connected to the middle position of the upper right side of the base (1). A conveying support roller (7) is rotatably connected to the lower inner side of the guide frame (6). A film cutting frame (8) is fixedly connected to the right side of the upper end of the base (1). A hydraulic cylinder (9) is fixedly connected to the middle position of the upper inner side of the film cutting frame (8). A lifting support plate (10) is fixedly connected to the lower end of the inner movable rod of the hydraulic cylinder (9). A lifting blade (11) is fixedly connected to the lower end of the lifting support plate (10).

2. The membrane cutting mechanism for a biodegradable membrane according to claim 1, characterized in that: The upper left side of the base (1) is fixedly connected to a fixed side plate (12) at both the front and rear ends. The upper inside of the fixed side plate (12) is slidably connected to a limit slide rod (13), and the limit slide rod (13) is fixedly connected to the pressure sensor (3).

3. The membrane cutting mechanism for a biodegradable membrane according to claim 2, characterized in that: There are two fixed side plates (12). The front end of the fixed side plate (12) is fixedly connected to a controller (25). The controller (25) is electrically connected to the electric telescopic rod (2) and the pressure sensor (3).

4. The membrane cutting mechanism for a biodegradable membrane according to claim 1, characterized in that: A stepper motor (14) is fixedly connected to the lower side of the front end face of the guide frame (6), and the output shaft of the stepper motor (14) is fixedly connected to the conveying support roller (7).

5. The membrane cutting mechanism for a biodegradable membrane according to claim 1, characterized in that: An adjusting screw (15) is rotatably connected to the middle position of the upper inner side of the guide frame (6). A turntable (16) is fixedly connected to the upper end of the adjusting screw (15). A lifting sleeve (17) is spirally connected to the outer side of the adjusting screw (15). A lifting frame (18) is fixedly connected to the lower end of the lifting sleeve (17). A lifting pressure roller (19) is rotatably connected to the inner side of the lifting frame (18). A first limiting telescopic rod (20) is fixedly connected to both the front and rear sides of the upper end of the lifting frame (18). The first limiting telescopic rod (20) is fixedly connected to the guide frame (6).

6. The membrane cutting mechanism for a biodegradable membrane according to claim 5, characterized in that: The outer surfaces of the conveying support roller (7) and the lifting pressure roller (19) are both fixedly connected with anti-slip sleeves (21).

7. The membrane cutting mechanism for a biodegradable membrane according to claim 1, characterized in that: The inner upper end of the film cutting frame (8) is fixedly connected to the front and rear sides of the second limiting telescopic rod (22), and the second limiting telescopic rod (22) is fixedly connected to the lifting support plate (10). A fixed blade (23) is fixedly connected at the middle position of the inner lower end of the film cutting frame (8), and a guide roller (24) is rotatably connected to the left side of the inner lower end of the film cutting frame (8).

Images