Plastic film cutting machine

Abstract

The utility model provides a plastic film cutting machine which relates to the technical field of cutting machines and comprises a machine frame, a supporting frame and a fixing plate are fixedly installed on the top face of the machine frame, an extending plate is fixedly installed on the surface of the fixing plate, an air cylinder is fixedly installed on the top face of the extending plate, and an installation block is installed at the output end of the air cylinder. According to the utility model, the cutting blade can be replaced by a worker only through simple operation without a complicated dismounting process or using a special tool, so that the operation difficulty and the skill requirement on the operator are reduced, and as the operation of replacing the cutting blade is simple and the damaged cutting blade does not need to be directly and manually dismounted, the labor intensity of the worker is reduced. The risk that workers may be injured in the cutting blade replacement process is reduced, the maintenance work of the machine is simplified through a rapid switching mechanism, conventional maintenance and cutting blade replacement are more convenient, and the good operation state of equipment can be kept.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting machines, in particular to a plastic film cutting machine. Background Art

[0002] Publication No. CN218319872U discloses a plastic film cutting machine, including a frame, a film conveying wheel is arranged on the frame, and a fixed frequency cutting mechanism is arranged at the upper end of the frame; the fixed frequency cutting mechanism includes: a sliding limit frame, a sliding block, a limit groove, a limit track, a cutting blade and a driving part; the sliding limit frame is arranged on a side surface of the frame, the sliding block is arranged on the inner side of the sliding limit frame, the limit groove is opened on the opposite sides of the sliding block, the limit track is arranged on the inner side surface of the sliding limit frame, the limit groove is embedded in the limit track, and the driving part is arranged on the side surface of the frame. Although this kind of cutting machine performs fixed frequency cutting by the rotation of the driving motor, the cutting frequency is adjusted according to the different speeds of the driving motor, and fixed frequency cutting is performed while ensuring the uniform rotation of the plastic film. However, the blade replacement process of the cutting machine is complicated and time-consuming, and special tools and cumbersome disassembly processes are required, which not only increases the difficulty of operation, but also increases the skill requirements for operators. In addition, there is a risk of cutting injuries during the manual removal of damaged blades, which poses a threat to the safety of operators. At the same time, due to the cumbersome process of replacing blades, routine maintenance and blade replacement become inconvenient, affecting the maintenance efficiency of the equipment and the good operation of the equipment. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: a plastic film cutting machine, comprising a frame, a support frame and a fixed plate are fixedly installed on the top surface of the frame, an extension plate is fixedly installed on the surface of the fixed plate, a cylinder is fixedly installed on the top surface of the extension plate, a mounting block is installed on the output end of the cylinder, a slot is provided on the bottom surface of the mounting block, an insert block is slidably connected to the inner wall of the slot, a cutting blade is fixedly installed on the bottom surface of the insert block, a limiting hole is provided on the top surface of the insert block, an insert rod is penetrated on the top surface of the mounting block, a top block is fixedly installed on one end of the insert rod, and a tension spring is sleeved on the surface of the insert rod.

[0005] Preferably, conveying wheels are installed on the surfaces of the support frame and the fixing plate, and the film body is arranged on the inner side of the conveying wheels.

[0006] Preferably, the cutting blades and the limiting holes are arranged at equal distances on the surface of the insert block, and the insert rod is slidably connected to the mounting block.

[0007] Preferably, one end of the tension spring is fixedly connected to the top block, and the other end of the tension spring is fixedly connected to the mounting block. Here, the tension spring can be stably mounted.

[0008] Preferably, the top surface of the frame is provided with a tension mechanism, the tension mechanism comprises a screw rod, the screw rod is rotatably connected to the top surface of the frame, a slide rod is fixedly installed on the top surface of the frame, and a lifting block is sleeved on the surface of the screw rod and the slide rod. Here, the tension of the film body can be adjusted.

[0009] Preferably, the lifting block is provided with threads inside, and the threads are meshed with the screw rod.

[0010] Preferably, the top of the lifting block is provided with a rounded corner, thereby avoiding puncturing the film body.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, the staff only needs to perform simple operations to complete the replacement of the cutting blade, without complicated disassembly process or use of special tools, which reduces the difficulty of operation and the requirements for the skills of the operator. In addition, since the operation of replacing the cutting blade is simple and there is no need to directly manually disassemble the damaged cutting blade, the risk of injury to the staff during the replacement of the cutting blade is reduced. The quick switching mechanism simplifies the maintenance work of the machine, making routine maintenance and cutting blade replacement more convenient, which helps to keep the equipment in good operating condition.

[0013] 2. The utility model tightens the film body by adjusting the height of the lifting block, which can ensure that the film body is flat and wrinkle-free during the cutting process, thereby improving the cutting accuracy and quality. As time goes by or during continuous production, the film body may become loose due to various reasons. This design can adjust the lifting block at any time to ensure that the film body is always tightened, thereby maintaining the consistency of the cutting effect, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a plastic film cutting machine is provided for the utility model;

[0015] Figure 2 An exploded diagram of a plastic film cutting machine is proposed for the utility model;

[0016] Figure 3 A plastic film cutting machine is proposed for the utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 A front view of a plastic film cutting machine is provided for the utility model;

[0018] Figure 5 A plastic film cutting machine is proposed for the utility model Figure 4 Enlarged view of point B in the middle.

[0019] Legend:

[0020] 1. Frame; 2. Support frame; 3. Fixed plate; 4. Extension plate; 5. Cylinder; 6. Mounting block; 7. Slot; 8. Insert block; 9. Cutting blade; 10. Limiting hole; 11. Insert rod; 12. Top block; 13. Tension spring; 14. Conveying wheel; 15. Film body; 16. Screw rod; 17. Sliding rod; 18. Lifting block; 19. Rounded corner. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1

[0024] See also Figure 1-5The utility model provides a technical solution: a plastic film cutting machine, including a frame 1, a support frame 2 and a fixed plate 3 are fixedly installed on the top surface of the frame 1, and a conveying wheel 14 is installed on the surface of the support frame 2 and the fixed plate 3. The conveying wheel 14 can be fixed on the support frame 2 and the fixed plate 3 by bolts or welding. This fixing method ensures that the conveying wheel 14 is stable and can withstand a large load when conveying a film body 15. The film body 15 is arranged on the inner side of the conveying wheel 14. The film body 15 is conveyed by the conveying wheel 14, and then the cutting blade 9 is driven downward by the cylinder 5 to cut the film body 15. An extension plate 4 is fixedly installed on the surface of the fixed plate 3, and a cylinder 5 is fixedly installed on the top surface of the extension plate 4. The cylinder 5 can be fixed on the extension plate 4 by bolts or welded to ensure that the cylinder 5 is stable and reliable when the cutting blade 9 is pushed to perform a cutting operation. The output end of the cylinder 5 is equipped with a mounting block 6. A slot 7 is provided on the bottom surface of the mounting block 6. An insert block 8 is slidably connected to the inner wall of the slot 7. The insert block 8 slides in the slot 7 through sliding fit or ball screw drive, so that the insert block 8 can move smoothly and accurately, thereby improving the accuracy of cutting. A cutting blade 9 is fixedly installed on the bottom surface of the insert block 8. The cutting blade 9 can be made of high-speed steel or tungsten carbide to ensure sharpness and durability during cutting. A limiting hole 10 is provided on the top surface of the insert block 8. The cutting blade 9 and the limiting hole 10 are arranged at equal distances on the surface of the insert block 8, thereby ensuring convenience and speed in blade replacement. An insert rod 11 is provided through the top surface of the mounting block 6, and the insert rod 11 is slidably connected to the mounting block 6.

[0025] See also Figure 1-5 , a top block 12 is fixedly installed at one end of the plug rod 11. The top block 12 can be made of plastic or metal material to ensure stability and durability when pulling. A tension spring 13 is sleeved on the surface of the plug rod 11. Pull the top block 12 upward, and the top block 12 then drives the plug rod 11 to leave the limiting hole 10. At this time, the limit of the plug block 8 can be released. Then, you only need to push the plug block 8. The plug block 8 slides in the slot 7 at this time. The plug block 8 then drives the cutting blade 9 to move until the adjacent cutting blade 9 is aligned with the film body 15. In this way, the cutting blade 9 can be switched. In this way, when the cutting blade 9 is damaged, a new cutting blade 9 can be quickly switched. One end of the tension spring 13 is fixedly connected to the top block 12, and the other end of the tension spring 13 is fixedly connected to the mounting block 6. The tension spring 13 can be made of stainless steel or carbon steel to ensure sufficient elasticity and durability.

[0026] Embodiment 2

[0027] See also Figure 4-5, the top surface of the frame 1 is provided with a tensioning mechanism, the tensioning mechanism includes a screw rod 16, and the screw rod 16 is rotatably connected to the top surface of the frame 1. The rotation connection can be fixed by bearings, key connections or tightening nuts, etc. These methods can ensure that the screw rod 16 is stable and smooth when rotating, reduce wear and extend the service life. The top surface of the frame 1 is fixedly installed with a slide bar 17, and the slide bar 17 can be firmly connected to the frame 1 by welding, bolting or clamping. Such an assembly method not only ensures the stability of the slide bar 17 but also facilitates maintenance and replacement. The surfaces of the screw rod 16 and the slide rod 17 are sleeved with a lifting block 18, and the film body 15 can be supported by the lifting block 18. The top of the lifting block 18 is provided with a fillet 19, and the fillet 19 can remove burrs to avoid piercing the film body 15. The lifting block 18 is provided with a thread inside, and the thread is meshed with the screw rod 16. The lifting block 18 can be made of high-strength materials such as steel or aluminum alloy to ensure its bearing capacity and durability. The meshing thread design enables the lifting block 18 to move up and down with the rotation of the screw rod 16, thereby adjusting the lifting position to adapt to film bodies 15 of different thicknesses. This design improves the adaptability and accuracy of the equipment.

[0028] Working principle: the film body 15 is transmitted through the conveying wheel 14, and then the cutting blade 9 is driven downward by the cylinder 5 to cut the film body 15, and when the cutting blade 9 is damaged, the staff only needs to pull the top block 12 upward, and the top block 12 then drives the insertion rod 11 to leave the limiting hole 10, then the limit of the insertion block 8 can be released, and then only the insertion block 8 needs to be pushed, and the insertion block 8 slides in the slot 7 at this time, and the insertion block 8 then drives the cutting blade 9 to move until the adjacent cutting blade 9 is aligned with the film body 15, so that the cutting blade 9 can be switched, so that when the cutting blade 9 is damaged, a new cutting blade 9 can be quickly switched. In the utility model, the staff only needs to perform simple operations to complete the replacement of the cutting blade 9, without the need for complicated disassembly process or the use of special tools, which reduces the difficulty of operation and the requirements for the skills of the operator. The utility model can tighten the film body 15 by adjusting the height of the lifting block 18, so as to ensure the cutting effect.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A plastic film cutting machine, comprising a frame (1), characterized in that: The top surface of the frame (1) is fixedly mounted with a support frame (2) and a fixing plate (3); the surface of the fixing plate (3) is fixedly mounted with an extension plate (4); the top surface of the extension plate (4) is fixedly mounted with a cylinder (5); the output end of the cylinder (5) is mounted with a mounting block (6); the bottom surface of the mounting block (6) is provided with a slot (7); the inner wall of the slot (7) is slidably connected with an insert block (8); the bottom surface of the insert block (8) is fixedly mounted with a cutting blade (9); the top surface of the insert block (8) is provided with a limiting hole (10); the top surface of the mounting block (6) is penetrated by an insert rod (11); one end of the insert rod (11) is fixedly mounted with a top block (12); and the surface of the insert rod (11) is sleeved with a tension spring (13).

2. The plastic film cutting machine according to claim 1, characterized in that: The surfaces of the support frame (2) and the fixing plate (3) are both installed with conveying wheels (14), and the inner side of the conveying wheels (14) is provided with a film body (15).

3. The plastic film cutting machine according to claim 1, characterized in that: The cutting blade (9) and the limiting holes (10) are arranged at equal distances on the surface of the insert block (8), and the insert rod (11) is slidably connected to the mounting block (6).

4. The plastic film cutting machine according to claim 1, characterized in that: One end of the tension spring (13) is fixedly connected to the top block (12), and the other end of the tension spring (13) is fixedly connected to the mounting block (6).

5. The plastic film cutting machine according to claim 1, characterized in that: The top surface of the frame (1) is provided with a tensioning mechanism, the tensioning mechanism comprising a screw rod (16), the screw rod (16) being rotatably connected to the top surface of the frame (1), a slide rod (17) being fixedly mounted on the top surface of the frame (1), and a lifting block (18) being sleeved on the surfaces of the screw rod (16) and the slide rod (17).

6. The plastic film cutting machine according to claim 5, characterized in that: The lifting block (18) is provided with a thread inside, and the thread is meshed with the screw rod (16).

7. The plastic film cutting machine according to claim 5, characterized in that: The top end of the lifting block (18) is provided with a rounded corner (19).

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