Automatic coating device for PVC (polyvinyl chloride) film

Abstract

The utility model discloses an automatic coating device for a PVC (Polyvinyl Chloride) film, which comprises a box body, the upper surface of the box body is fixedly connected with a coating box, a coating roller is arranged above the coating box, a traction roller is arranged in the box body, a tensioning roller is arranged in the box body, one end of the tensioning roller is rotatably connected with a mounting plate, the upper surface of the box body is fixedly connected with a guide rail, and a guide groove is formed in the side surface of the guide rail. A motor is fixedly installed on the upper surface of the box body, the output end of the motor is fixedly connected with a threaded rod, a movable plate is arranged on the outer side of the threaded rod, and the side face of the mounting plate is fixedly connected with one end of a rotating shaft. According to the PVC film coating device, the connecting plate drives the mounting plate to move up and down, the tightness degree of a PVC film is adjusted, the situation that coating is uneven and even bubbles are generated due to the tightness degree of the PVC film is avoided, the situation that coating is uneven due to coating curtain coating is avoided through the scraping plate, the coating is collected through the material collecting plate, pollution caused by coating dripping is avoided, and the PVC film coating device is simple in structure and convenient to use. And the applicability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of PVC film technology, specifically to an automated coating device for PVC film. Background Technology

[0002] PVC film is mainly composed of polyvinyl chloride, which is a slightly yellowish, semi-transparent, glossy substance with better transparency than polyethylene and polypropylene. Surface coating is a common surface treatment method for PVC film, which can enhance its scratch resistance, abrasion resistance, and weather resistance, thereby improving its service life and aesthetics.

[0003] Most existing PVC film coating methods utilize rotating coating rollers to coat the surface of the PVC film. During the coating process, the tightness of the PVC film is not easily controlled, which can easily lead to uneven coating or even air bubbles. In addition, after the PVC film passes through the coating roller, the paint flow can become uneven during the movement of the roller, affecting the coating effect of the PVC film. Utility Model Content

[0004] The purpose of this invention is to provide an automated coating device for PVC film to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automated coating device for PVC film, comprising a housing, the upper surface of which is fixedly connected to a coating box, a coating roller disposed above the coating box, a traction roller disposed inside the housing, a tension roller disposed inside the housing, one end of the tension roller being rotatably connected to a mounting plate, the upper surface of which is fixedly connected to a guide rail, a guide groove being formed on the side of the guide rail, the side of the mounting plate being hinged to one end of a connecting plate, a motor being fixedly mounted on the upper surface of which, the output end of the motor being fixedly connected to a threaded rod, a moving plate disposed outside the threaded rod, the side of the mounting plate being fixedly connected to one end of a rotating shaft, one end of the rotating shaft being fixedly connected to a worm gear, a worm being disposed on the side of the mounting plate, a scraper being fixedly connected to the outside of the rotating shaft, the bottom surface of the scraper being fixedly connected to a guide plate, and the side of the mounting plate being fixedly connected to a collecting plate.

[0006] Preferably, there are two mounting plates symmetrically distributed on both sides of the tension roller, the mounting plates are L-shaped plates, and the mounting plates are slidably connected to the guide groove.

[0007] Preferably, one end of the connecting plate is hinged to the side of the mounting plate, and the other end of the connecting plate is movably hinged to the side of the movable plate.

[0008] Preferably, one end of the threaded rod is rotatably connected to the inner wall of the box, and a threaded hole is opened on the side of the movable plate, and the movable plate is threadedly connected to the outer side of the threaded rod through the threaded hole.

[0009] Preferably, one end of the rotating shaft extends to one side of the mounting plate and is fixedly connected to the worm gear, and the outer side of the worm gear is engaged with the worm.

[0010] Preferably, the guide plate is a V-shaped plate, the guide plate is located above the collecting plate, and one end of the guide plate is inclined downward.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model is constructed by setting up an installation plate, guide rail, guide groove, connecting plate, threaded rod, and moving plate. The threaded rod is rotated by a motor, which causes the moving plate to move on the threaded rod and push the connecting plate to move the installation plate inside the guide groove. This causes the installation plate to move up and down. The tension roller adjusts the tightness of the PVC film, thereby avoiding uneven coating or even air bubbles caused by the tightness of the PVC film.

[0013] 2. This utility model also incorporates a mounting plate, rotating shaft, worm gear, worm, scraper, guide plate, and collecting plate. The scraper smooths the coating on the PVC film surface, preventing uneven coating caused by paint dripping. The collecting plate collects the coating, preventing paint dripping and contamination. Rotating the worm gear allows the worm gear and rotating shaft to rotate synchronously, adjusting the distance between the scraper and the film to enhance applicability. The V-shaped guide plate facilitates the diversion of excess coating to the collecting plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the tension roller connection structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the mounting plate connection structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the scraper structure of this utility model.

[0018] In the diagram: 1. Box body; 2. Coating box; 3. Coating roller; 4. Traction roller; 5. Tensioning roller; 6. Mounting plate; 7. Guide rail; 8. Guide groove; 9. Connecting plate; 10. Motor; 11. Threaded rod; 12. Moving plate; 13. Rotating shaft; 14. Worm gear; 15. Worm; 16. Scraper; 17. Guide plate; 18. Collecting plate. Detailed Implementation

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Please see Figure 1-4 This utility model provides a technical solution: an automated coating device for PVC film, including a housing 1, the upper surface of which is welded and fixed to a coating box 2, the bottom of which is fixedly connected to four symmetrical support columns, a rectangular through groove for moving the PVC film on the side of the housing 1, a coating roller 3 above the coating box 2, the coating roller 3 being rotatably connected to the outside of a connecting shaft, one end of which is fixedly connected to a drive end, the coating roller 3 being located directly above the coating box 2, a coating material being placed inside the coating box 2, the bottom of the coating roller 3 extending into the coating material, a traction roller 4 inside the housing 1, a tension roller 5 inside the housing 1, one end of which is rotatably connected to a mounting plate 6, and the upper surface of the housing 1 being welded and fixed to a guide rail 7. A guide groove 8 is provided on the side of the guide rail 7. The side of the mounting plate 6 is hinged to one end of the connecting plate 9. The upper surface of the housing 1 is fixed to the motor 10 by bolts. The output end of the motor 10 is welded to the threaded rod 11. A movable plate 12 is provided on the outside of the threaded rod 11. The two ends of the movable plate 12 are respectively hinged to the side of the connecting plate 9. The side of the mounting plate 6 is welded to one end of the rotating shaft 13. The other end of the rotating shaft 13 is welded to the worm gear 14. A worm 15 is provided on the side of the mounting plate 6. The outside of the worm 15 is rotatably connected to the ear plate. The ear plate is fixedly connected to the side of the mounting plate 6. The outside of the rotating shaft 13 is welded to the scraper 16. The bottom surface of the scraper 16 is welded to the guide plate 17. The side of the mounting plate 6 is welded to the collecting plate 18.

[0021] There are two mounting plates 6, symmetrically distributed on both sides of the tension roller 5. The mounting plates 6 are L-shaped and slidably connected to the guide groove 8. After the coating roller 3 applies the coating, the top of the PVC film is in close contact with the top of the coating roller 3 during coating. Therefore, the coating roller 3 only applies the coating to the surface after the PVC film moves out of this plane. As a result, the rotation of the coating roller 3 cannot ensure uniform coating, and the uniformity cannot be maintained during the movement of the PVC film. The smoothness of the coating on the PVC film is ensured by the scraping of the scraper 16.

[0022] One end of the connecting plate 9 is hinged to the side of the mounting plate 6, and the other end of the connecting plate 9 is movably hinged to the side of the movable plate 12. One end of the threaded rod 11 is rotatably connected to the inner wall of the housing 1. A threaded hole is opened on the side of the movable plate 12, and the movable plate 12 is threadedly connected to the outer side of the threaded rod 11 through the threaded hole. The motor 10 causes the threaded rod 11 to rotate, causing the movable plate 12 to move horizontally, thereby driving the connecting plates 9 on both sides to move the mounting plate 6 inside the guide groove 8. The tightness of the PVC film is adjusted by the up and down movement of the mounting plate 6. The rotation of the motor 10 allows for more precise adjustment of the lifting and lowering of the mounting plate 6, thus making the tightness adjustment of the PVC film more accurate.

[0023] One end of the rotating shaft 13 extends to one side of the mounting plate 6 and is welded and fixed to the worm gear 14. The outer side of the worm gear 14 is meshed with the worm 15. The guide plate 17 is a V-shaped plate, located above the collecting plate 18. One end of the guide plate 17 is inclined downwards, and the tip of the guide plate 17 is located at the center of the scraper 16. The scraper 16 scrapes away excess paint on the PVC film and accumulates it at the bottom of the scraper 16. Then, the V-shape of the guide plate 17 can move the paint on the PVC film to both sides. Combined with gravity, the paint can fill the grooves on the PVC film, effectively ensuring the uniformity of the PVC film surface after passing through the scraper 16.

[0024] Working principle: During use, the coating roller 3 rotates to coat the coating inside the coating box 2 onto its surface, and then the coating on the surface of the coating roller 3 is applied to the PVC film. When it is necessary to adjust the tightness of the PVC film, the motor 10 rotates the threaded rod 11, causing the moving plate 12 to move horizontally, thereby driving the connecting plates 9 on both sides to move the mounting plate 6 inside the guide groove 8. The tightness of the PVC film is adjusted by the up and down movement of the mounting plate 6. After the PVC film is coated, the coating on the scraper 16 is spread evenly to avoid unevenness caused by coating flow on the PVC film. The V-shape of the guide plate 17 guides the coating to the collection plate 18 for collection. At the same time, the V-shaped structure of the guide plate 17, combined with the downward movement of the coating due to gravity, fills the uneven areas on the PVC film, ensuring the uniformity of the PVC film coating.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] 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. An automated coating device for PVC film, comprising a housing (1), characterized in that: The upper surface of the housing (1) is fixedly connected to the coating box (2). A coating roller (3) is provided above the coating box (2). A traction roller (4) is provided inside the housing (1). A tension roller (5) is provided inside the housing (1). One end of the tension roller (5) is rotatably connected to the mounting plate (6). The upper surface of the housing (1) is fixedly connected to the guide rail (7). A guide groove (8) is opened on the side of the guide rail (7). The side of the mounting plate (6) is hinged to one end of the connecting plate (9). A motor (10) is fixedly installed on the upper surface of the housing (1). The output end of the motor (10) is fixedly connected to the threaded rod (11). A movable plate (12) is provided on the outside of the threaded rod (11). The side of the mounting plate (6) is fixedly connected to one end of the rotating shaft (13). One end of the rotating shaft (13) is fixedly connected to the worm gear (14). A worm (15) is provided on the side of the mounting plate (6). The outside of the rotating shaft (13) is fixedly connected to the scraper (16). The bottom surface of the scraper (16) is fixedly connected to the guide plate (17). The side of the mounting plate (6) is fixedly connected to the collecting plate (18).

2. The automated coating device for PVC film according to claim 1, characterized in that: The number of mounting plates (6) is two and they are symmetrically distributed on both sides of the tension roller (5). The mounting plates (6) are L-shaped plates and are slidably connected to the guide groove (8).

3. The automated coating apparatus for PVC film according to claim 1, characterized in that: One end of the connecting plate (9) is hinged to the side of the mounting plate (6), and the other end of the connecting plate (9) is movably hinged to the side of the movable plate (12).

4. The automated coating apparatus for PVC film according to claim 1, characterized in that: One end of the threaded rod (11) is rotatably connected to the inner wall of the box (1), and the movable plate (12) has a threaded hole on its side. The movable plate (12) is threadedly connected to the outer side of the threaded rod (11) through the threaded hole.

5. The automated coating apparatus for PVC film according to claim 1, characterized in that: One end of the rotating shaft (13) extends to one side of the mounting plate (6) and is fixedly connected to the worm gear (14). The outer side of the worm gear (14) is engaged with the worm (15).

6. The automated coating apparatus for PVC film according to claim 1, characterized in that: The guide plate (17) is a V-shaped plate, and the guide plate (17) is located above the collecting plate (18). One end of the guide plate (17) is inclined downward.

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