A pressing device for processing a polymer film material

Abstract

The utility model discloses a kind of pressing devices for macromolecular film material processing, applied in macromolecular material processing technical field, the utility model is by adopting pre-pressing structure, mechanical pre-pressing eliminates film material initial wrinkle, avoid defect transmission to finished product, make film material form uniform tension distribution, reduce the stress concentration of main pressing area, can discharge interlayer bubble in advance, improve interlayer combination compactness, significantly improve the flatness problem of traditional pressing process;Residual debris on the surface of compression roller can be removed, to prevent it from being pressed into film material again to form defects, and at the same time, the roller surface lubrication maintenance is completed synchronously during the cleaning process, which maintains the surface finish of the compression roller, avoids the downtime waste caused by separate lubrication operation, and effectively guarantees the pressing quality stability during continuous production.

Description

Technical Field

[0001] This utility model belongs to the field of polymer material processing technology, and specifically relates to a pressing device for processing polymer film materials. Background Technology

[0002] Polymer films are thin films made from organic polymers. With the development of the petroleum industry and technology, the application fields of polymer films have continued to expand, evolving from initial packaging films to smart polymer films, functional polymer films, etc. Among them, functional release films and functional protective films are used the most, and their applications include consumer electronics, electrical appliances, die-cutting, printing, military, medical, automotive protection, building energy conservation, aerospace, etc. A pressing device for polymer film processing is a device used to press polymer films together during processing.

[0003] However, in traditional polymer film processing pressing equipment, the initial wrinkles remaining when the film enters the main pressing zone are directly imprinted into the finished product, resulting in permanent textures on the surface. Uneven tension distribution can easily cause local stress concentration, leading to tensile deformation of the film. At the same time, film debris accumulated on the surface of the pressure roller will repeatedly contaminate subsequent products, forming indentation defects that are difficult to eliminate. Manual cleaning requires stopping the machine and disassembling the roller, which not only affects production efficiency but may also damage the precision of the roller surface. Separating the lubrication process from the cleaning process leads to incomplete maintenance, and the roller surface is prone to dry friction damage.

[0004] To address the problems mentioned in the background above, a pressing device for processing polymer films is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a pressing device for processing polymer film materials, which has the advantages of integrating pre-pressing anti-wrinkle and cleaning and lubrication.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pressing device for processing polymer film materials, comprising a support, a cylinder bolted to the left side of the bottom of the support, a pressure plate bolted to the bottom of the cylinder, a spring bolted to the bottom of the pressure plate, a wheel box bolted to the bottom of the spring, a pressure roller rotatably connected to the front and rear ends of the inner wall of the wheel box, a protective pad fitted on the surface of the pressure roller, a base provided at the bottom of the pressure roller, a baffle bolted to the front and rear ends of the top of the base, a frame bolted to the right side of the base, and the top of the frame bolted to the right side of the bottom of the support, a maintenance mechanism provided at the top and bottom of the frame, and a pressing mechanism provided at the rear end of the frame.

[0007] The above technical solution involves: the cylinder extending upwards to move the pressure plate upwards, which in turn moves the spring, which in turn moves the wheel box and pressure roller. The polymer film to be pressed is placed on the base, at the bottom of the pressure roller. The cylinder then moves downwards to move the pressure roller, pressing down on the top of the polymer film. During operation, the pressing device moves the polymer film to the right and presses it. Before pressing, the pressure roller pre-presses the polymer film. The cylinder's extension and retraction facilitates the placement of the polymer film and allows adjustment of the pressing height and force, adapting to various film specifications. The spring and pressure roller buffer prevent damage to the polymer film. The protective pad is made of thick neoprene rubber, which can withstand pressure impacts, enhances frictional grip, and prevents the film from deviating. The pre-pressing structure mechanically eliminates initial wrinkles in the film, preventing defects from being transferred to the finished product. This results in a uniform tension distribution in the film, reducing stress concentration in the main pressing area, allowing for the early removal of interlayer air bubbles, improving interlayer bonding density, and significantly improving the flatness problem of traditional pressing processes.

[0008] The present invention is further configured such that the maintenance mechanism includes a second spring, the second spring being bolted to the front and rear ends of the top and bottom of the frame, the end of the second spring away from the frame being bolted to a connecting block, the front and rear ends of the connecting block being bolted to rods, a rotating rod being sleeved through and rotatably connected to the opposite side of the two rods at one end, a wool felt being sleeved in the middle of the surface of the rotating rod, a scraper being bolted to the right side of the opposite side of the two connecting blocks, and a pressure roller being provided on the opposite side of the two scrapers.

[0009] The above technical solution employs a maintenance mechanism. After the pressing process, a connecting block moves towards the pressure roller. This connecting block drives a scraper and felt to contact the pressure roller. The scraper first removes debris adhering to the surface of the rotating pressure roller, while the felt, impregnated with silicone oil, lubricates the roller after the debris has been removed. After maintenance, spring two drives the mechanism to return to its original position, effectively removing residual debris from the roller surface and preventing it from being pressed back into the film material, thus preventing defects. Simultaneously, roller surface lubrication and maintenance are completed during the cleaning process, maintaining the smoothness of the roller surface and avoiding downtime waste caused by separate lubrication operations. This effectively ensures the stability of pressing quality during continuous production.

[0010] The present invention is further configured such that the pressing mechanism includes a rotating shaft, the rotating shaft is located inside the rear end of the frame and passes through the top and bottom and is rotatably sleeved, and the front of the bottom rotating shaft is rotatably connected to the bottom of the front end of the frame, and the surface of the rotating shaft is fixedly sleeved with the inside of the pressure roller, a gear is fixedly sleeved on the back of the rotating shaft, and the bottom of the top gear meshes with the top of the bottom gear, and a motor is fixedly sleeved on the front of the top rotating shaft.

[0011] The above technical solution is adopted: by setting up a pressing mechanism, the motor drives the top rotating shaft to rotate, the top rotating shaft drives the top gear to rotate, the top gear drives the bottom gear to rotate, the bottom gear drives the bottom rotating shaft to rotate, and the rotating shaft drives the pressure roller to rotate, thus pressing the film material.

[0012] The present invention is further configured such that a damper is sleeved inside the spring.

[0013] The above technical solution involves setting a damper to limit the spring and prevent it from continuously rebounding.

[0014] The present invention is further configured such that a telescopic rod is sleeved inside the second spring.

[0015] The above technical solution uses a telescopic rod to limit the spring in two ways.

[0016] The present invention is further configured such that limit blocks are sleeved on both sides of the rotating rod.

[0017] The above technical solution allows for easy disassembly of the rotating rod to replace the wool felt by setting a limit block, and prevents the rotating rod from falling off after the rotating rod and wool felt are installed.

[0018] The present invention is further configured such that a pressure rod is bolted to the right side of the connecting block.

[0019] The above technical solution involves setting up a pressure bar to facilitate pressing the connecting block.

[0020] The present invention is further configured such that a base plate is bolted to the bottom of the base and the frame.

[0021] The above technical solution, by setting a base plate, can stabilize the device.

[0022] In summary, this utility model has the following beneficial effects: 1. This utility model adopts a pre-pressing structure, mechanical pre-pressing to eliminate initial wrinkles in the membrane material, avoids the transfer of defects to the finished product, makes the membrane material form a uniform tension distribution, reduces stress concentration in the main pressing area, can remove interlayer air bubbles in advance, improves the density of interlayer bonding, and significantly improves the flatness problem of traditional pressing process. 2. This utility model can remove residual debris from the surface of the pressure roller, preventing it from being pressed into the film material again and causing defects. At the same time, the roller surface is lubricated and maintained during the cleaning process, which not only maintains the surface smoothness of the pressure roller, but also avoids the waste of downtime caused by separate lubrication operations, effectively ensuring the stability of pressing quality during continuous production. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front sectional view of the overall structure of this utility model; Figure 3 This is a partial structural left view of this utility model; Figure 4 This is a partial sectional view of the right side of the structure of this utility model; Figure 5 This is a left-side sectional view of the maintenance mechanism of this utility model.

[0024] Reference numerals in the attached diagram: 1. Bracket; 2. Cylinder; 3. Pressure plate; 4. Spring 1; 5. Spring 2; 6. Wheel box; 7. Pressure roller; 8. Protective pad; 9. Base; 10. Baffle; 11. Frame; 12. Connecting block; 13. Rod frame; 14. Rotating rod; 15. Wool felt; 16. Scraper; 17. Pressure roller; 18. Rotating shaft; 19. Gear; 20. Motor; 21. Damper; 22. Telescopic rod; 23. Limiting block; 24. Pressure rod; 25. Base plate. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1: refer to Figure 1 , Figure 2 , Figure 3 , Figure 4A pressing device for processing polymer film materials includes a support 1. A cylinder 2 is bolted to the left side of the bottom of the support 1. The cylinder 2 has a diameter of 32-50mm and a working pressure of 0.4-0.6MPa. The pre-pressure of the pressure roller 7 on the film material is maintained at 10-30N by adjusting the air pressure. A pressure plate 3 is bolted to the bottom of the cylinder 2. A spring 4 is bolted to the bottom of the pressure plate 3. The spring 4 has a stiffness coefficient of 50-80N / mm and a compression stroke of 10-30mm. A wheel box 6 is bolted to the bottom of the spring 4. The front and rear ends of the inner wall of the wheel box 6 are rotatably connected to the pressure roller 7. A protective pad 8 with a thickness of 3-5mm and a Shore hardness of 60-70A is fitted on the surface of the pressure roller 7. A base 9 is provided at the bottom of the pressure roller 7. A baffle 10 is bolted to the front and rear ends of the top of the base 9. A frame 11 is bolted to the right side of the base 9, and the top of the frame 11 is connected to the right side of the bottom of the support 1. The frame 11 is bolted to the side. Maintenance mechanisms are located at the top and bottom of the frame. A pressing mechanism is located at the rear end of the frame 11. The cylinder 2 extends upwards, causing the pressure plate 3 to move upwards. The pressure plate 3 then moves the spring 4, which in turn moves the wheel box 6 and the pressure roller 7. The polymer film to be pressed is placed on the base 9, and the bottom of the pressure roller 7 is pressed down. The cylinder 2 moves downwards, pressing the top of the polymer film. During operation, the pressing device moves the polymer film to the right and presses it. Before pressing, the pressure roller 7 pre-presses the polymer film. The extension and retraction of the cylinder 2 facilitates the placement of the polymer film and allows adjustment of the pressing height and force, adapting to various film specifications. The spring 4 cushions the pressure roller 7 to prevent damage to the polymer film. The protective pad 8 is made of thick neoprene rubber, which can withstand pressure impacts and enhances frictional gripping force to prevent the film from deviating.

[0027] refer to Figure 2 , Figure 3 The spring 4 has a damper 21 inside. By setting the damper 21, the spring 4 can be limited and prevented from continuously rebounding. The damping coefficient is 10-20 N·s / m.

[0028] refer to Figure 1 , Figure 2 The base 9 and the bottom of the frame 11 are bolted with a base plate 25, which can stabilize the device.

[0029] Example 2: refer to Figure 1 , Figure 2 , Figure 4 , Figure 5A pressing device for processing polymer film materials, the maintenance mechanism includes a second spring 5, which is bolted to the front and rear ends of the top and bottom of the frame 11. A connecting block 12 is bolted to the end of the second spring 5 away from the frame 11. Rods 13 are bolted to the front and rear ends of the connecting block 12. A rotating rod 14 is rotatably sleeved through and onto the opposite side of the two rods 13 at one end. A felt 15 with a density of 0.3-0.5 g / cm³ and coated with silicone oil of 50-100 cSt is sleeved in the middle of the surface of the rotating rod 14. The two connecting blocks 12 are... A scraper 16 is bolted to the right side of one side. The scraper 16 is made of hard alloy with a thickness of 0.5mm and a cutting edge radius of R0.1mm. A pressure roller 17 is set on the opposite side of the two scrapers 16. After the pressing operation, the connecting block 12 moves towards the pressure roller 17. The connecting block 12 drives the scraper 16 and the wool felt 15 to move and contact the pressure roller 17. The scraper 16 first scrapes off the debris stuck to the surface of the rotating pressure roller 17. The wool felt 15 is impregnated with silicone oil to lubricate the pressure roller 17 after the debris has been scraped off. After the maintenance is completed, the spring 2 5 drives the mechanism to return to its original state.

[0030] refer to Figure 1 , Figure 2 , Figure 4 The pressing mechanism includes a rotating shaft 18, which is located inside the rear end of the frame 11 and is rotatably sleeved at the top and bottom. The front of the bottom rotating shaft 18 is rotatably connected to the bottom of the front end of the frame 11, and the surface of the rotating shaft 18 is fixedly sleeved with the inside of the pressure roller 17. A gear 19 is fixedly sleeved on the back of the rotating shaft 18, and the bottom of the top gear 19 meshes with the top of the bottom gear 19. The gear 19 has a module of 2.5, a gear ratio of 1:1, and a meshing gap of 0.1-0.2mm to ensure that the difference in linear speed between the upper and lower pressure rollers 17 is ≤1%. A motor 20 is fixedly sleeved on the front of the top rotating shaft 18. With the pressing mechanism, the motor 20 drives the top rotating shaft 18 to rotate, which in turn drives the top gear 19 to rotate, which in turn drives the bottom gear 19 to rotate, which in turn drives the bottom rotating shaft 18 to rotate, and the rotating shaft 18 drives the pressure roller 17 to rotate, thus pressing the film material.

[0031] refer to Figure 1 , Figure 2 , Figure 5 The spring 25 has a telescopic rod 22 inside, which can limit the movement of the spring 25.

[0032] refer to Figure 5 Limiting blocks 23 are fitted on both sides of the rotating rod 14. By setting the limiting blocks 23, the rotating rod 14 can be easily disassembled to replace the wool felt 15, and the rotating rod 14 can be prevented from falling off after the rotating rod 14 and wool felt 15 are installed.

[0033] refer to Figure 1 ,Figure 2 A pressure rod 24 is bolted to the right side of the connecting block 12. By setting the pressure rod 24, the connecting block 12 can be pressed easily. The effective pressing stroke of the pressure rod 24 is 10-20mm, ensuring that the contact depth between the scraper 16 and the pressure roller 17 is ≤0.5mm.

[0034] Brief description of operation: Cylinder 2 extends and retracts upward, causing pressure plate 3 to move upward. Pressure plate 3 then moves spring 4, which in turn moves wheel box 6 and pressure roller 7. The polymer film to be pressed is placed on base 9, with the bottom of pressure roller 7 positioned. Cylinder 2 moves downward, causing pressure roller 7 to press down on the top of the polymer film. During operation, the pressing device moves the polymer film to the right and presses it. Before pressing, pressure roller 7 pre-presses the polymer film. The extension and retraction of cylinder 2 facilitates the placement of the polymer film and allows for adjustment of the pressing height. The pressure is suitable for various membrane materials. Spring 4 and pressure roller 7 buffer each other to prevent damage to the polymer membrane material. The protective pad 8 is made of thick neoprene rubber to withstand pressure impact and enhance friction grip to prevent the membrane material from deviating. After the pressing operation, the connecting block 12 moves towards the pressure roller 17. The connecting block 12 drives the scraper 16 and wool felt 15 to move and contact the pressure roller 17. The scraper 16 first scrapes off the debris stuck to the surface of the rotating pressure roller 17. The wool felt 15 is impregnated with silicone oil to lubricate the pressure roller 17 after the debris has been scraped off. After maintenance, spring 2 5 drives the mechanism to return to its original state.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A pressing device for processing polymer film materials, comprising a support (1), characterized in that: A cylinder (2) is bolted to the left side of the bottom of the bracket (1). A pressure plate (3) is bolted to the bottom of the cylinder (2). A spring (4) is bolted to the bottom of the pressure plate (3). A wheel box (6) is bolted to the bottom of the spring (4). A pressure wheel (7) is rotatably connected to the front and rear ends of the inner wall of the wheel box (6). A protective pad (8) is fitted on the surface of the pressure wheel (7). A base (9) is provided at the bottom of the pressure wheel (7). A baffle (10) is bolted to the front and rear ends of the top of the base (9). A frame (11) is bolted to the right side of the base (9). The top of the frame (11) is bolted to the right side of the bottom of the bracket (1). A maintenance mechanism is provided at the top and bottom of the frame (11). A pressing mechanism is provided at the rear end of the frame (11).

2. The pressing device for processing polymer films according to claim 1, characterized in that: The maintenance mechanism includes a second spring (5), which is bolted to the front and rear ends of the top and bottom of the frame (11). A connecting block (12) is bolted to the end of the second spring (5) away from the frame (11). A rod frame (13) is bolted to the front and rear ends of the connecting block (12). A rotating rod (14) is inserted through and rotatably sleeved on the opposite side of the two rod frames (13) at one end. A wool felt (15) is sleeved in the middle of the surface of the rotating rod (14). A scraper (16) is bolted to the right side of the opposite side of the two connecting blocks (12). A pressure roller (17) is provided on the opposite side of the two scrapers (16).

3. The pressing device for processing polymer films according to claim 1, characterized in that: The pressing mechanism includes a rotating shaft (18), which is located at the top and bottom of the rear end of the frame (11) and rotates through it. The front of the bottom rotating shaft (18) is rotatably connected to the bottom of the front end of the frame (11), and the surface of the rotating shaft (18) is fixedly connected to the inside of the pressure roller (17). A gear (19) is fixedly connected to the back of the rotating shaft (18), and the bottom of the top gear (19) meshes with the top of the bottom gear (19). A motor (20) is fixedly connected to the front of the top rotating shaft (18).

4. The pressing device for processing polymer films according to claim 1, characterized in that: A damper (21) is fitted inside the spring (4).

5. The pressing device for processing polymer films according to claim 2, characterized in that: The spring 2 (5) has a telescopic rod (22) inside.

6. The pressing device for processing polymer films according to claim 2, characterized in that: Limiting blocks (23) are sleeved on both sides of the rotating rod (14).

7. The pressing device for processing polymer films according to claim 2, characterized in that: A pressure rod (24) is bolted to the right side of the connecting block (12).

8. The pressing device for processing polymer films according to claim 1, characterized in that: The bottom of the base (9) and the frame (11) are bolted with a base plate (25).

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