Casting polyethylene film cutting machine with calibration mechanism

By designing calibration mechanisms and clamping components in cast polyethylene film cutting machines, the problem of insufficient fixation stability during film cutting is solved, and higher cutting accuracy and stability are achieved.

CN222521416UActive Publication Date: 2025-02-25SICHUAN HOUCHENG NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202421302560.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-02-25
Estimated Expiration
2034-06-07

AI Technical Summary

Technical Problem

The existing cast polyethylene film cutting machines have low stability in the film, which leads to the film being easily tilted, wrinkled or displaced during the cutting process, resulting in uneven cuts and making it difficult to measure and calibrate the cutting position easily, affecting the accuracy of cutting. Spend.

Method used

A cast polyethylene film cutting machine with a calibration mechanism is designed, using structures such as brackets, sliding grooves, support blocks, support frames and identification components. Through the cooperation of sliding blocks and springs, the calibration and indication of the film cutting distance is realized. And by clamping the assembly and cutting the assembly, the stable fixation and precise cutting of the film are ensured.

Benefits of technology

Improves the accuracy and stability of film cutting, prevents irregular cuts and loose films, simplifies the measurement and calibration process of cutting positions, and extends the service life of the tool.

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Abstract

The utility model discloses a casting polyethylene film cutting machine with a calibration mechanism, which belongs to the technical field of casting polyethylene films and comprises a support, sliding grooves for providing sliding paths are respectively arranged on two sides of the support, supporting blocks are slidably connected to the inner sides of the sliding grooves, a supporting frame is mounted on the outer sides of the two supporting blocks, and the supporting frame is connected with the calibration mechanism. A movable through hole is formed in the other side of the supporting frame, the film cutting distance can be calibrated and indicated through the marking assembly, a film can be pressed and fixed through the two clamping assemblies, and the problems that when an existing device cuts the film, the pressing and fixing stability is low, the film is wrinkled or shifted, a notch is prone to being uneven, and the cutting efficiency is high are solved. The problems that an existing device cannot conveniently measure and calibrate the film cutting position, a cutter is prone to being abraded or passivated after being used for a long time, the cutter cannot be conveniently replaced, and the film cutting precision and practicability of the device are affected are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of cast polyethylene film, in particular to a cast polyethylene film cutting machine with a calibration mechanism. Background Art

[0002] Cast film is a non-stretched, non-directional flat extruded film produced by quenching the melt. The plastic film prepared by the cast film method first passes through an extruder to plasticize and melt the raw materials, and is extruded through a T-shaped structure molding die and cast in sheet form onto the roller surface of a steadily rotating cooling roller. The film is cooled and shaped on the cooling roller, and then the product is rolled up after traction and trimming. There are two types of cast films: extruded melt cast film and solvent cast film. The film needs to be cut and separated during the production and processing process. The existing equipment has low stability in fixing the film, which causes the film to tilt during cutting and causes uneven incisions.

[0003] The existing equipment has low stability in pressing and fixing the film when cutting, and the film may wrinkle or shift, which may easily cause an uneven cut. The existing equipment cannot conveniently measure and calibrate the film cutting position, and the tool may easily wear or become blunt after long-term use. The tool cannot be conveniently replaced, which affects the accuracy and practicality of the equipment in cutting the film. Therefore, those skilled in the art provide a cast polyethylene film cutting machine with a calibration mechanism to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a cast polyethylene film cutting machine with a calibration mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cast polyethylene film cutting machine with a calibration mechanism, comprising a bracket, two sides of the bracket are respectively provided with sliding grooves for providing a sliding path, the inner side of the sliding groove is slidably connected with a support block, the outer side of the two support blocks is installed with a support frame, the other side of the support frame is provided with a movable through hole, and the inner side of the movable through hole is installed with a marking component for calibration;

[0006] The top of the bracket and both ends are respectively provided with clamping components for fixing the film, the bottom of the support frame is provided with a cutting component for cutting the film, the support block is slidably connected to the sliding groove, and the support block is fixedly connected to the support frame.

[0007] Preferably: the identification assembly includes a fixed rod installed on the inner side of the movable through hole, a first spring for squeezing is mounted on the outer side of the fixed rod, a sliding block is mounted on the inner side of the movable through hole and on the outer side of the fixed rod, an indicator needle is installed on one side of the sliding block, a scale for measuring the cutting distance is laid on the top of the bracket, and the sliding block is slidably connected to the fixed rod.

[0008] Preferably: the clamping assembly includes a fixing frame installed on the top of the bracket and close to both ends, a mounting through hole is opened on the top of the fixing frame to provide a movable space, a rotating shaft is installed on the inner side of the mounting through hole, a cam for pushing is mounted on the outer side of the rotating shaft, a motor is installed on the other side of the fixing frame and at one end of the rotating shaft, and the rotating shaft is fixedly connected to the cam.

[0009] Preferably: the clamping assembly also includes a pad strip installed on the top of the bracket and located below the fixing frame, a support rod for support passes through the top of the fixing frame, a second spring for support is mounted on the outside of the support rod, a pressure strip is installed at the bottom of the support rod, and the support rod is slidably connected to the fixing frame.

[0010] Preferably: the cutting assembly includes a moving block installed on the inner side of a support frame for support, a first cylinder for driving is installed on one side of the support frame, a first push rod is installed on one side of the first cylinder, a second cylinder is installed on the top of the moving block, a second push rod is installed on the bottom of the second cylinder, a mounting block is installed on one end of the second push rod, a tool for cutting is installed on the bottom of the mounting block, and the moving block is slidably connected to the support frame.

[0011] Preferably, a groove for placing a film is provided at the bottom of the cushion strip, a material pressing portion is connected to the bottom of the pressure strip, and the cross-sections of the material pressing portion and the groove are both arc-shaped.

[0012] Preferably, a notch is provided at the bottom of the mounting block, a fixing bar is installed at the top of the tool, the fixing bar and the mounting block are fixed by two bolts, and the fixing bar is movably connected to the notch.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, by setting a support block and a support frame, the support block slides in the sliding groove and the support frames of the two support blocks move on the top of the bracket, so that the support frame drives the cutting component to cut the film of different sizes. The marking component can be used to calibrate and indicate the cutting distance of the film. The two sets of clamping components can press and fix the film to prevent the film from loosening and wrinkling, affecting the accuracy of the equipment in cutting the film or causing uneven incisions.

[0015] 2. In the utility model, by setting a fixed rod, a first spring and a scale, when the support block drives the support frame to move, the fixed rod drives the sliding block to move. At the same time, the first spring on the outside of the fixed rod presses the sliding block downward, and the sliding block can drive the indicator needle to move on the surface of the scale, so that the indication is calibrated and marked for the film cutting distance, thereby improving the accuracy of the equipment in cutting the film.

[0016] 3. In the utility model, by setting a cam, a support rod and a second spring, the motor can drive the cam to rotate through the rotating shaft, and the end of the cam squeezes and pushes the pressure strip downward, and the pressure strip drives the two support rods to move downward. At the same time, the support rod squeezes the second spring, and the pressure strip is close to the pad to press and fix the film, thereby improving the stability of the fixed film and preventing the film from loosening and wrinkling, which affects the accuracy and flatness of the film cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a left-side cutaway stereoscopic view of the overall structure of the utility model;

[0019] Figure 3 It is a front cutaway stereoscopic view of the overall structure of the utility model;

[0020] Figure 4 The overall structure of the utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 5 The overall structure of the utility model Figure 3 Enlarged view of point B in the middle;

[0022] Figure 6 The overall structure of the utility model Figure 3 Enlarged view of point C in the middle.

[0023] In the figure: 1. bracket; 2. sliding groove; 3. support block; 4. support frame; 5. movable through hole; 6. fixed rod; 7. first spring; 8. sliding block; 9. indicator needle; 10. scale; 11. fixed frame; 12. mounting through hole; 13. rotating shaft; 14. cam; 15. motor; 16. cushion strip; 18. support rod; 19. second spring; 20. pressure strip; 21. moving block; 22. first cylinder; 23. first push rod; 24. second cylinder; 25. second push rod; 26. mounting block; 27. tool; 28. groove; 29. ​​pressing part; 30. notch; 31. fixing strip. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 to Figure 6 In an embodiment of the utility model, a cast polyethylene film cutting machine with a calibration mechanism includes a bracket 1, and sliding grooves 2 for providing a sliding path are respectively opened on both sides of the bracket 1, and a support block 3 is slidably connected to the inner side of the sliding groove 2, and a support frame 4 is installed on the outer side of the two support blocks 3, and a movable through hole 5 is opened on the other side of the support frame 4. An identification component for calibration is installed inside the movable through hole 5, and clamping components for fixing the film are respectively installed at the top and at both ends of the bracket 1, and a cutting component for cutting the film is installed at the bottom of the support frame 4, the support block 3 is slidably connected to the sliding groove 2, and the support block 3 is fixedly connected to the support frame 4.

[0026] When in use, the support block 3 slides in the sliding groove 2 and the support frame 4 of the two support blocks 3 moves on the top of the bracket 1, so that the support frame 4 drives the cutting component to cut the film of different sizes. The marking component can be used to calibrate the film cutting distance. The two sets of clamping components can press and fix the film to prevent the film from loosening and wrinkling, which will affect the accuracy of the equipment in cutting the film or cause uneven incisions.

[0027] In one embodiment, specifically, the marking component includes a fixed rod 6 installed on the inner side of the movable through hole 5, a first spring 7 for squeezing is mounted on the outer side of the fixed rod 6, a sliding block 8 is mounted on the inner side of the movable through hole 5 and on the outer side of the fixed rod 6, an indicator needle 9 is installed on one side of the sliding block 8, a scale 10 for measuring the cutting distance is laid on the top of the bracket 1, and the sliding block 8 is slidably connected to the fixed rod 6.

[0028] Among them, when the support block 3 drives the support frame 4 to move, the fixed rod 6 drives the sliding block 8 to move. At the same time, the first spring 7 on the outside of the fixed rod 6 presses the sliding block 8 downward, and the sliding block 8 can drive the indicator needle 9 to move on the surface of the scale 10, so that the indicator needle 9 calibrates and marks the film cutting distance, thereby improving the accuracy of the equipment in cutting the film.

[0029] Furthermore, the clamping assembly includes a fixing frame 11 installed on the top of the bracket 1 and close to both ends, a mounting through hole 12 is opened on the top of the fixing frame 11 to provide a movable space, a rotating shaft 13 is installed on the inner side of the mounting through hole 12, a cam 14 for pushing is mounted on the outer side of the rotating shaft 13, a motor 15 is installed on the other side of the fixing frame 11 and at one end of the rotating shaft 13, the clamping assembly also includes a pad 16 installed on the top of the bracket 1 and located below the fixing frame 11, a support rod 18 for support passes through the top of the fixing frame 11, a second spring 19 for support is mounted on the outer side of the support rod 18, a pressure strip 20 is installed on the bottom of the support rod 18, the support rod 18 is slidably connected to the fixing frame 11, and the rotating shaft 13 is fixedly connected to the cam 14.

[0030] In one embodiment, specifically, the motor 15 can drive the cam 14 to rotate through the rotating shaft 13, and the end of the cam 14 squeezes and pushes the pressure strip 20 downward, and the pressure strip 20 drives the two support rods 18 to move downward. At the same time, the support rods 18 squeeze the second spring 19, and the pressure strip 20 is close to the pad strip 16 to press and fix the film, thereby improving the stability of the fixed film and preventing the film from loosening and wrinkling, which affects the accuracy and flatness of the film cutting.

[0031] Among them, the cutting assembly includes a moving block 21 installed on the inner side of the support frame 4 for support, a first cylinder 22 for driving is installed on one side of the support frame 4, a first push rod 23 is installed on one side of the first cylinder 22, a second cylinder 24 is installed on the top of the moving block 21, a second push rod 25 is installed at the bottom of the second cylinder 24, a mounting block 26 is installed at one end of the second push rod 25, and a tool 27 for cutting is installed at the bottom of the mounting block 26. The moving block 21 is slidably connected to the support frame 4, and the second cylinder 24 can drive the tool 27 at the bottom of the mounting block 26 to move up and down through the second push rod 25. The first cylinder 22 can drive the moving block 21 to slide on the top of the support frame 4 through the first push rod 23, so that the mounting block 26 drives the tool 27 to cut the film fixed on the top of the bracket 1, thereby improving the accuracy and convenience of the equipment in cutting the film.

[0032] In one embodiment, specifically, a groove 28 for carrying the film is opened at the bottom of the pad 16, and a pressing portion 29 is connected to the bottom of the pressure strip 20. The cross-sections of the pressing portion 29 and the groove 28 are both arc-shaped, which can protect the film and prevent the film from being damaged by squeezing or wear. The pressing portion 29 can be embedded in the groove 28 to improve the stability of the fixed film.

[0033] Furthermore, a notch 30 is provided at the bottom of the mounting block 26, and a fixing strip 31 is installed on the top of the tool 27. The fixing strip 31 and the mounting block 26 are fixed by two bolts. The fixing strip 31 is movably connected to the notch 30. The cross-sections of the notch 30 and the fixing strip 31 are both isosceles trapezoids. The tool 27 can drive the fixing strip 31 to embed into the notch 30 at the bottom of the mounting block 26, and then use two bolts to lock and fix it, thereby improving the convenience and stability of replacing the tool 27 and avoiding the tool 27 from being worn and blunted and difficult to replace.

[0034] The working principle of this utility model:

[0035] First, the film to be cut is passed through the two fixing frames 11, and then the film is placed in the grooves 28 at the top of the two pads 16, and then the motor 15 is started to drive the cam 14 to rotate through the rotating shaft 13, and then the end of the cam 14 squeezes and pushes the pressure strip 20 downward, and then the pressure strip 20 drives the two support rods 18 to move downward, and at the same time the support rods 18 squeeze the second spring 19, and then the pressure strip 20 approaches the pad 16 to press and fix the film, and at the same time the pressing part 29 presses the film to be embedded in the groove 28, and then the support frame 4 drives the support block 3 to slide in the sliding groove 2, and the cutting is carried out according to the required The length stops moving the support frame 4, at this time the first spring 7 on the outside of the fixed rod 6 presses the sliding block 8 downward, and at the same time the sliding block 8 drives the indicating needle 9 to move on the surface of the scale 10, and then the indicating needle 9 calibrates and indicates the film cutting distance, and then the first cylinder 22 and the second cylinder 24 are started, at this time the second cylinder 24 drives the tool 27 at the bottom of the mounting block 26 to move downward through the second push rod 25, and then the first cylinder 22 drives the moving block 21 to slide on the top of the support frame 4 through the first push rod 23, and then the mounting block 26 drives the tool 27 to cut the film fixed on the top of the bracket 1.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cast polyethylene film cutting machine with a calibration mechanism, comprising a support (1), characterized in that: The bracket (1) is provided with sliding grooves (2) on both sides for providing a sliding path, the inner side of the sliding groove (2) is slidably connected with a support block (3), the outer sides of the two support blocks (3) are provided with a support frame (4), the other side of the support frame (4) is provided with a movable through hole (5), and the inner side of the movable through hole (5) is provided with a marking component for calibration; The top of the support (1) and the two ends thereof are respectively provided with clamping components for fixing the film, the bottom of the support frame (4) is provided with a cutting component for cutting the film, the support block (3) is slidably connected to the sliding groove (2), and the support block (3) is fixedly connected to the support frame (4).

2. A cast polyethylene film cutting machine with a calibration mechanism according to claim 1, characterized in that: The marking component comprises a fixed rod (6) installed on the inner side of the movable through hole (5), a first spring (7) for pressing is sleeved on the outer side of the fixed rod (6), a sliding block (8) is sleeved on the inner side of the movable through hole (5) and on the outer side of the fixed rod (6), an indicating needle (9) is installed on one side of the sliding block (8), a scale (10) for measuring the cutting distance is laid on the top of the bracket (1), and the sliding block (8) is slidably connected to the fixed rod (6).

3. A cast polyethylene film cutting machine with a calibration mechanism according to claim 2, characterized in that: The clamping assembly comprises a fixing frame (11) mounted on the top of the bracket (1) and close to both ends; a mounting through hole (12) is provided on the top of the fixing frame (11) for providing a movable space; a rotating shaft (13) is mounted inside the mounting through hole (12); a cam (14) for pushing is sleeved outside the rotating shaft (13); a motor (15) is mounted on the other side of the fixing frame (11) and at one end of the rotating shaft (13); and the rotating shaft (13) is fixedly connected to the cam (14).

4. A cast polyethylene film cutting machine with a calibration mechanism according to claim 3, characterized in that: The clamping assembly also includes a pad (16) installed on the top of the bracket (1) and located below the fixing frame (11); a support rod (18) for supporting is passed through the top of the fixing frame (11); a second spring (19) for supporting is sleeved on the outside of the support rod (18); a pressure strip (20) is installed at the bottom of the support rod (18); and the support rod (18) is slidably connected to the fixing frame (11).

5. A cast polyethylene film cutting machine with a calibration mechanism according to claim 1, characterized in that: The cutting assembly comprises a moving block (21) installed on the inner side of a support frame (4) for supporting, a first cylinder (22) for driving is installed on one side of the support frame (4), a first push rod (23) is installed on one side of the first cylinder (22), a second cylinder (24) is installed on the top of the moving block (21), a second push rod (25) is installed on the bottom of the second cylinder (24), a mounting block (26) is installed on one end of the second push rod (25), a tool (27) for cutting is installed on the bottom of the mounting block (26), and the moving block (21) is slidably connected to the support frame (4).

6. A cast polyethylene film cutting machine with a calibration mechanism according to claim 4, characterized in that: The bottom of the cushion strip (16) is provided with a groove (28) for placing a film, and the bottom of the pressure strip (20) is connected with a material pressing portion (29), and the cross sections of the material pressing portion (29) and the groove (28) are both arc-shaped.

7. A cast polyethylene film cutting machine with a calibration mechanism according to claim 5, characterized in that: A notch (30) is provided at the bottom of the mounting block (26), and a fixing strip (31) is installed on the top of the cutter (27). The fixing strip (31) and the mounting block (26) are fixed by two bolts, and the fixing strip (31) and the notch (30) are movably connected.