Film coating device for PVC film processing

Abstract

The utility model discloses a film coating device for PVC (polyvinyl chloride) film processing, which comprises a portal frame fixedly mounted on the front side of the top of the film coating device, a first connecting roller is rotatably arranged on the rear side of an inner cavity of the portal frame, a second connecting roller is rotatably connected to the front side of the inner cavity of the portal frame, and a first belt wheel is rotatably connected to the rear side of the right side of the portal frame. The first connecting roller penetrates to the right side of the portal frame and is fixedly connected with the first belt wheel, the front side of the right side of the portal frame is rotationally connected with a second belt wheel, the second connecting roller penetrates to the outer side of the portal frame and is fixedly connected with the second belt wheel, and a belt is in transmission connection between the first belt wheel and the second belt wheel. According to the utility model, the belt wheel I, the belt wheel II and the belt are matched for use, so that the connecting roller I and the connecting roller II rotate at the bottom of the portal frame, and then, through the matched use of the scraping plate, the arc-shaped plate and the pin roller, the scraping plate and the pin roller flatten wrinkles when a PVC film enters between the connecting roller I and the connecting roller II.

Description

Technical Field

[0001] This utility model belongs to the field of PVC film technology, and in particular relates to a coating device for PVC film processing. Background Technology

[0002] PVC's main component is polyvinyl chloride, which is a slightly yellow, semi-transparent substance with a glossy appearance. Its transparency is better than that of polyethylene and polypropylene, but worse than that of polystyrene. Depending on the amount of additives used, it is divided into soft and rigid PVC. Soft PVC products are flexible and tough.

[0003] In PVC film processing, wrinkles need to be smoothed before coating. If the coating is applied directly, the amount and thickness of the coating on the wrinkles will differ from those on smooth areas, resulting in uneven coating thickness. Wrinkles also alter the flow path of the coating, causing it to accumulate in the wrinkle depressions. Therefore, we need to design a coating device for PVC film processing that uses a double-roller rotating structure and a smoothing scraper structure to remove wrinkles from both the top and bottom sides of the PVC film. This ensures that the film surface is on the same plane, guaranteeing uniform coating and resulting in a consistent coating thickness and a smooth, flat appearance. Smoothing wrinkles allows the coating to flow and spread evenly as expected, avoiding flow marks and accumulation, and improving coating quality. Utility Model Content

[0004] The purpose of this invention is to provide a coating device for PVC film processing, which features a double-roller rotating structure and a smoothing scraper structure to remove wrinkles from the upper and lower sides of the PVC film, ensuring that the film surface is on the same plane, guaranteeing uniform coating, resulting in a coating with consistent thickness and a smooth appearance. Smoothing wrinkles allows the coating to flow and spread evenly in the desired manner, avoiding flow marks and accumulation, and improving coating quality, thereby solving the aforementioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A coating device for PVC film processing includes a gantry frame fixedly installed on the front side of the top of the coating device. A connecting roller 1 is rotatably connected to the rear side of the inner cavity of the gantry frame, and a connecting roller 2 is rotatably connected to the front side of the inner cavity of the gantry frame. A pulley 1 is rotatably connected to the rear side of the right side of the gantry frame. The connecting roller 1 passes through to the right side of the gantry frame and is fixedly connected to the pulley 1. A pulley 2 is rotatably connected to the front side of the right side of the gantry frame. The connecting roller 2 passes through to the outside of the gantry frame and is fixedly connected to the pulley 2. The connection includes a belt connecting pulley one and pulley two. Multiple rectangular grooves are formed on the surface of connecting roller two. A lower base plate is fixedly connected to the bottom of the inner cavity of each rectangular groove. A sliding plate is slidably connected to the inner cavity of each rectangular groove. A spring is installed inside the inner cavity of each rectangular groove, with its two ends welded to the lower base plate and the sliding plate, respectively. Multiple arc-shaped plates are formed on the surface of connecting roller two. Rollers are rotatably connected to the top of each arc-shaped plate. A motor is installed on the right side of the gantry frame, and the output shaft of the motor is fixedly connected to pulley two.

[0006] Preferably, two fixing sleeves are fixedly connected to the left side of the inner cavity of the gantry frame, and the inner cavities of the two fixing sleeves are respectively rotatably connected to connecting roller one and connecting roller two.

[0007] Preferably, a plurality of scrapers are fixedly connected to the surface of the connecting roller.

[0008] Preferably, a fixing plate is fixedly connected to both sides of the inner cavity of the plurality of rectangular grooves, and the opposite side of the two fixing plates is slidably connected to the sliding plate.

[0009] Preferably, a connecting block is fixedly connected to the top of the sliding plate, the connecting block is fixedly connected to the arc plate, a support plate is fixedly connected to the bottom of the right side of the gantry, and the motor is fixedly installed on the top of the support plate.

[0010] Preferably, the surface of the arc-shaped plate is provided with a circular groove for the roller to rotate.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model utilizes the combined use of pulley one, pulley two, and a belt to make connecting roller one and connecting roller two rotate at the bottom of the gantry. Then, through the combined use of a scraper, an arc plate, and rollers, when the PVC film passes between connecting roller one and connecting roller two, the scraper and rollers smooth out the wrinkles. This achieves the purpose of using a double-roller rotating structure and a smoothing scraper structure to remove wrinkles from the upper and lower sides of the PVC film, ensuring that the film surface is on the same plane, ensuring uniform coating, and forming a film with consistent thickness and a smooth appearance. Smoothing out wrinkles allows the coating to flow and spread evenly in the expected manner, avoiding flow marks and accumulation, and improving the quality of the coating film.

[0013] 2. By setting up a scraper, the connecting roller cooperates with the scraper to perform more refined processing on the surface of PVC film. The scraper can promptly smooth out any small wrinkles that have not been completely smoothed out. The scraper can take advantage of its linear contact to perform targeted smoothing.

[0014] 3. By using the fixed plate and the sliding plate together, the fixed plate limits the sliding plate when it slides between the fixed plates, ensuring that the sliding plate will not deviate during sliding and improving the stability of the sliding plate sliding in the rectangular groove cavity.

[0015] 4. By setting up a connecting block, this utility model guides the arc-shaped plate when it rotates, ensuring the smoothness of the arc-shaped plate during rotation and improving its stability. Attached Figure Description

[0016] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0017] Figure 1 This is a front view schematic diagram of one embodiment of the present utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the fixing sleeve and roller according to one embodiment of the present utility model;

[0019] Figure 3 This is a perspective view of a pulley and a belt according to an embodiment of the present invention;

[0020] Figure 4 This is a side view of a spring and an arc-shaped plate according to an embodiment of the present invention.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Coating device; 2. Gantry frame; 3. Fixing sleeve; 4. Connecting roller one; 5. Scraper; 6. Connecting roller two; 7. Pulley one; 8. Pulley two; 9. Belt; 10. Rectangular groove; 11. Fixing plate; 12. Lower base plate; 13. Sliding plate; 14. Spring; 15. Connecting block; 16. Arc plate; 17. Roller; 18. Support plate; 19. Motor. Detailed Implementation

[0023] In the following description, embodiments of the coating apparatus for PVC film processing of the present invention will be described with reference to the accompanying drawings.

[0024] Figure 1-4This invention illustrates a coating apparatus for PVC film processing according to an embodiment of the present invention. It includes a gantry frame 2 fixedly installed on the front side of the top of the coating apparatus 1. A connecting roller 4 is rotatably mounted on the rear side of the inner cavity of the gantry frame 2. Multiple scrapers 5 are fixedly connected to the surface of the connecting roller 4. Through the arrangement of the scrapers 5, the connecting roller 4 cooperates with the scrapers 5 to perform more refined processing of the PVC film surface. The scrapers 5 can further smooth out any minor wrinkles that have not been completely smoothed out. The scrapers can utilize their linear contact advantage for targeted smoothing. A second connecting roller 6 is rotatably connected to the front side of the inner cavity of the gantry frame 2. Two fixing sleeves are fixedly connected to the left side of the inner cavity of the gantry frame 2. 3. The inner cavities of the two fixed sleeves 3 are rotatably connected to connecting roller 4 and connecting roller 6 respectively. A pulley 7 is rotatably connected to the rear right side of the gantry frame 2. Connecting roller 4 extends through to the right side of the gantry frame 2 and is fixedly connected to pulley 7. A pulley 8 is rotatably connected to the front right side of the gantry frame 2. Connecting roller 6 extends through to the outer side of the gantry frame 2 and is fixedly connected to pulley 8. A belt 9 is connected between pulley 7 and pulley 8. Multiple rectangular grooves 10 are formed on the surface of connecting roller 6. Fixed plates 11 are fixedly connected to both sides of the inner cavities of the multiple rectangular grooves 10. The opposing sides of the two fixed plates 11 are slidably connected to the sliding plate 13. The cooperation of the fixed plate 11 and the sliding plate 13 ensures that the fixed plate 11 limits the sliding plate 13 when it slides between the fixed plates 11, preventing the sliding plate 13 from shifting and improving the stability of the sliding plate 13 within the rectangular groove 10. A lower base plate 12 is fixedly connected to the bottom of the rectangular groove 10, and the sliding plate 13 is slidably connected to the inner cavity of the rectangular groove 10. A spring 14 is installed within the rectangular groove 10, with its two ends welded to the lower base plate 12 and the sliding plate 13, respectively. Multiple arc-shaped plates 16 are provided on the surface of the connecting roller 6. The top of the gantry 2 is rotatably connected to a roller 17. A motor 19 is installed on the right side of the gantry 2. A connecting block 15 is fixedly connected to the top of the sliding plate 13. The connecting block 15 is fixedly connected to the arc plate 16. A support plate 18 is fixedly connected to the bottom of the right side of the gantry 2. The motor 19 is fixedly installed on the top of the support plate 18. Through the setting of the connecting block 15, when the connecting block 15 rotates, it guides the arc plate 16, ensuring the smoothness of the arc plate 16 during rotation and improving the stability of the arc plate 16. The output shaft of the motor 19 is fixedly connected to the pulley 8. A circular groove for the roller 17 to rotate is opened on the surface of the arc plate 16.

[0025] Working Principle: In use, the user processes and coats the PVC film using the coating device 1. The PVC film then passes between the bottom of connecting roller 4 and the top of connecting roller 6. The motor 19 on the top of the support plate 18 is then activated. The output shaft of the motor 19 drives pulley 8 to rotate, which in turn drives pulley 7 via belt 9. This causes pulleys 7 and 8 to rotate connecting rollers 4 and 6 at the bottom of the gantry 2. The left sides of connecting rollers 4 and 6 rotate within the inner cavity of the fixed sleeve 3, causing the scraper 5 on the surface of connecting roller 4 to smooth out wrinkles in the PVC film. Meanwhile, when wrinkles appear in the PVC film, the connecting roller 2 6 will drive the arc plate 16 to rotate, causing the roller 17 to rotate on the surface of the arc plate 16. The arc plate 16 will drive the sliding plate 13 to slide between the two fixed plates 11 through the connecting block 15. As the sliding plate 13 moves downward, the spring 14 will elastically shorten in the inner cavity of the rectangular groove 10. Due to the setting of the scraper 5 and the roller 17, the surface of the PVC film passing between the connecting roller 1 4 and the connecting roller 2 6 will not have wrinkles, ensuring the flatness of the PVC film surface. Finally, the coating device 1 will perform coating processing on the smoothed PVC film.

[0026] In summary, this PVC film coating device, through the coordinated use of pulley 7, pulley 8, and belt 9, causes connecting rollers 4 and 6 to rotate at the bottom of the gantry 2. Subsequently, through the coordinated use of scraper 5, arc plate 16, and roller 17, when the PVC film passes between connecting rollers 4 and 6, the scraper 5 and roller 17 smooth out the wrinkles. This achieves the goal of removing wrinkles from both sides of the PVC film using a double-roller rotating structure and a smoothing scraper structure, ensuring that the film surface is on the same plane, guaranteeing uniform coating, consistent film thickness, and a smooth and flat appearance. Smoothing wrinkles allows the coating to flow and spread evenly in the desired manner, avoiding flow marks and accumulation, and improving the quality of the coating.

Claims

1. A coating apparatus for PVC film processing, characterized in that, The device includes a gantry (2) fixedly installed on the front side of the top of the coating device (1). A connecting roller 1 (4) is rotatably connected to the rear side of the inner cavity of the gantry (2). A connecting roller 2 (6) is rotatably connected to the front side of the inner cavity of the gantry (2). A pulley 1 (7) is rotatably connected to the rear side of the right side of the gantry (2). The connecting roller 1 (4) extends through to the right side of the gantry (2) and is fixedly connected to the pulley 1 (7). A pulley 2 (8) is rotatably connected to the front side of the right side of the gantry (2). The connecting roller 2 (6) extends through to the outside of the gantry (2) and is fixedly connected to the pulley 2 (8). A belt (9) drives between the pulley 1 (7) and the pulley 2 (8). The surface of the connecting roller 2 (6) is provided with multiple rectangular grooves (10). The bottom of the inner cavity of the rectangular groove (10) is fixedly connected to a lower base plate (12). The inner cavity of the rectangular groove (10) is slidably connected to a sliding plate (13). The inner cavity of the rectangular groove (10) is provided with a spring (14). The two ends of the spring (14) are welded to the lower base plate (12) and the sliding plate (13) respectively. The surface of the connecting roller 2 (6) is provided with multiple arc plates (16). The top of the arc plate (16) is rotatably connected to a roller (17). The right side of the gantry frame (2) is equipped with a motor (19). The output shaft of the motor (19) is fixedly connected to the pulley 2 (8).

2. The coating apparatus for PVC film processing according to claim 1, characterized in that, Two fixed sleeves (3) are fixedly connected to the left side of the inner cavity of the gantry frame (2), and the inner cavities of the two fixed sleeves (3) are rotatably connected to the connecting roller one (4) and the connecting roller two (6) respectively.

3. The coating apparatus for PVC film processing according to claim 2, characterized in that, Multiple scrapers (5) are fixedly connected to the surface of the connecting roller (4).

4. The coating apparatus for PVC film processing according to claim 3, characterized in that, Both sides of the inner cavity of the multiple rectangular grooves (10) are fixedly connected to a fixing plate (11), and the opposite side of the two fixing plates (11) is slidably connected to the sliding plate (13).

5. A coating apparatus for PVC film processing according to claim 4, characterized in that, A connecting block (15) is fixedly connected to the top of the sliding plate (13), and the connecting block (15) is fixedly connected to the arc plate (16). A support plate (18) is fixedly connected to the bottom right side of the gantry frame (2), and the motor (19) is fixedly installed on the top of the support plate (18).

6. A coating apparatus for PVC film processing according to claim 5, characterized in that, The surface of the arc plate (16) is provided with a circular groove for the roller (17) to rotate.

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