A coating machine for protective film processing
By introducing a scraper and drying chamber structure into the coating machine, the problems of uneven coating and uneven drying of the paint are solved, achieving uniform scraping and drying of the paint, improving the production quality of the protective film and reducing environmental pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU TUOFENG COLD STORAGE EQUIP CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-31
AI Technical Summary
Existing coating machines are prone to uneven coating during the coating process and uneven drying, which affects the performance of the protective film. Furthermore, the coating is difficult to scrape off after application, leading to environmental pollution.
A coating machine was designed, comprising a scraper and a drying chamber. The scraper is driven by a cylinder to contact the surface of the protective film and scrape the coating to ensure uniform coating distribution. Inside the drying chamber, a blower and a hollow plate work together to dry the coating, achieving uniform drying.
It achieves uniform scraping and drying of coating on the protective film surface, prevents uneven coating, improves production quality, and reduces environmental pollution.
Smart Images
Figure CN224574030U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating machine technology, and in particular to a coating machine for processing protective films. Background Technology
[0002] Protective films can be categorized by their application into digital product protective films, automotive protective films, household protective films, food preservation protective films, etc. The processing of protective films requires the use of a coating machine. Coating machines are primarily used for surface coating processes on films, paper, and other materials. This machine coats a roll of substrate with a specific functional adhesive, paint, or ink, and after drying, cuts it into sheets or rewinds it. It employs a dedicated multi-functional coating head, enabling various forms of surface coating. The coating machine's unwinding and rewinding are equipped with a full-speed automatic film splicing mechanism, and the tension is automatically controlled via a PLC program closed-loop control.
[0003] For example, the coating machine for protective film processing with a drying mechanism disclosed in patent application CN216704929U solves the problem that the existing coating machine directly dries the surface of the protective film through electrical components, which easily leads to uneven heating of the protective film and affects the production quality. In addition, the gas generated during the drying process of the protective film is directly emitted to the outside without treatment, which can easily cause certain environmental pollution. However, it still does not solve the problem that the existing coating machine is inconvenient to scrape the material coated on the surface of the protective film during use. When the coating is uneven, it is difficult to scrape, resulting in uneven surface coating and affecting the use effect. Therefore, we propose a coating machine for protective film processing. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a coating machine for processing protective films. It has a scraping effect to prevent uneven coating caused by difficulty in scraping the coating material on the protective film surface. At the same time, it has a uniform drying effect to prevent uneven drying of the coating material on the protective film surface.
[0005] The technical solution of this utility model is: a coating machine for processing protective film, including a coating machine body, rollers and base. The rollers are rotatably connected to the coating machine body and are symmetrically arranged. The base is arranged in a rectangular pattern on the lower surface of the coating machine body. Two first cylinders are fixedly connected to the upper surface of the coating machine body and are symmetrically arranged. The output end of the first cylinder is fixed with a first connecting block located in the working groove. A fixed shell is fixedly connected to the side of the two first connecting blocks away from the working groove. A scraper is rotatably connected to the lower surface of the fixed shell.
[0006] In a further technical solution, a drying box is fixedly connected to two bases on one side of the coating machine body. Two grooves are opened on the surface of the drying box. A blower is provided on the surface of the drying box and located in the groove. Two hollow plates are arranged symmetrically inside the drying box. The hollow plates are fixedly connected to the blower.
[0007] In a further technical solution, one side of the lower surface of the scraper is beveled, and a second connecting block is fixedly connected to the upper surface of the scraper.
[0008] In a further technical solution, the second connecting block has fixing blocks on both sides of its surface that are fixedly connected to the fixing shell, and the surface of the fixing block has five symmetrically arranged insertion holes.
[0009] In a further technical solution, the five sockets are distributed in a semi-circular shape, and a limiting screw that penetrates the second connecting block is threaded at the center of each socket.
[0010] In a further technical solution, the hollow plate has multiple evenly distributed through holes on the side surface near the drying oven.
[0011] In a further technical solution, two symmetrically arranged second cylinders are fixed on both the upper and lower sides of the drying box, and the output end of the second cylinder is fixedly connected to the hollow plate.
[0012] The beneficial effects of this utility model are:
[0013] 1. By setting up the first cylinder, working groove, first connecting block, fixed shell and scraper to cooperate with each other, when the coating machine body is coating the protective film, the surface coating of the protective film can be scraped by the cooperation of the scraper and the fixed shell, so that the coating can be spread evenly, which achieves the effect of easy scraping and prevents the coating body from being inconvenient to spread evenly when coating the protective film, thus affecting the uniformity of the coating.
[0014] 2. By using a drying chamber, blower, hollow plate, and through holes in coordination, the coating machine body can dry the coating on the protective film after applying the coating through the drying chamber and blower. This prevents the coating from being difficult to dry after application and from being easily wiped off, thus achieving a convenient drying effect and preventing the need to use the drying equipment again after the protective film coating is applied, which would be inefficient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0016] Figure 2 This is a side sectional view of the coating machine body according to an embodiment of the present invention;
[0017] Figure 3 This is a schematic diagram of the scraper structure according to an embodiment of the present utility model;
[0018] Figure 4 This is a schematic diagram of the working trough structure according to an embodiment of the present utility model;
[0019] Figure 5 This is a schematic diagram of the fixing block structure according to an embodiment of the present utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Coating machine body; 2. Roller; 3. Base; 4. First cylinder; 5. Working trough; 6. First connecting block; 7. Fixing shell; 8. Scraper; 9. Second connecting block; 10. Fixing block; 11. Insertion hole; 12. Limit screw; 13. Drying oven; 14. Blower; 15. Hollow plate; 16. Through hole; 17. Second cylinder. Detailed Implementation
[0022] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0023] Example:
[0024] like Figures 1-5 As shown, a coating machine for processing protective film includes a coating machine body 1, a roller 2, and a base 3. The roller 2 is rotatably connected inside the coating machine body 1 and is symmetrically arranged. The base 3 is arranged in a rectangular pattern on the lower surface of the coating machine body 1. Two first cylinders 4 are fixedly connected to the upper surface of the coating machine body 1 and are symmetrically arranged. The output end of the first cylinder 4 is fixedly connected to a first connecting block 6 located in a working groove 5. A fixed shell 7 is fixedly connected to the side of the two first connecting blocks 6 away from the working groove 5. A scraper 8 is rotatably connected to the lower surface of the fixed shell 7. One side of the lower surface of the scraper 8 is beveled. A second connecting block 9 is fixedly connected to the upper surface of the scraper 8. Fixed blocks 10 are fixedly connected to the fixed shell 7 on both sides of the surface of the second connecting block 9. Five symmetrically arranged insertion holes 11 are opened on the surface of the fixed block 10. The five insertion holes 11 are distributed in a semi-arc shape. A limiting screw 12 that penetrates the second connecting block 9 is threaded at the center of the insertion hole 11.
[0025] The working principle of the above technical solution is as follows:
[0026] When it is necessary to scrape the protective film after it has been coated on the surface of roller 2, the first cylinder 4 can be activated to drive the first connecting block 6 to slide down in the working groove 5 while the roller 2 is conveying the protective film. This causes the fixed shell 7 to move down, which can cause the scraper 8 to fit with the protective film conveyed on the surface of roller 2 with a certain gap. At this time, the scraper 8 can cooperate to scrape the coating on the surface of the protective film, so that the coating is spread evenly on the surface of the protective film. At the same time, the first cylinder 4 can be adapted to the required coating thickness of the protective film. And since the scraper 8 and the fixed shell 7 are rotatably connected, the scraper 8 can be adapted to the required coating thickness of the protective film. The protective film can be angled. During adjustment, the limiting screw 12 can be unscrewed from the insertion hole 11 by hand. At this time, the second connecting block 9 can be held to apply force to drive the scraper 8 to adjust the angle. After adjustment, the limiting screw 12 can be rotated to insert into the insertion hole 11 to limit the second connecting block 9. Since the insertion hole 11 is distributed in a semi-arc shape, the second connecting block 9 can be inserted into the insertion hole 11 with the limiting screw 12 to limit it when adjusted to different positions, which achieves the effect of easy scraping and prevents the roller 2 from being inconvenient to cooperate with the coating on the surface of the protective film during use, resulting in uneven coating.
[0027] In another embodiment, such as Figure 1 and Figure 2 As shown, a drying chamber 13 is fixedly connected to two bases 3 on one side of the coating machine body 1. Two grooves are opened on the surface of the drying chamber 13. A blower 14 is provided on the surface of the drying chamber 13 and located in the groove. Two hollow plates 15 are arranged symmetrically inside the drying chamber 13. The hollow plates 15 are fixedly connected to the blower 14. Multiple evenly distributed through holes 16 are opened on the surface of the hollow plate 15 near the drying chamber 13. Two second cylinders 17 are fixedly arranged symmetrically on the upper and lower sides of the drying chamber 13. The output end of the second cylinder 17 is fixedly connected to the hollow plate 15.
[0028] When drying the coating on the protective film conveyed by the roller 2, the protective film is first conveyed into the drying chamber 13 by the conveyor shaft. At this time, the air outside the drying chamber 13 is drawn into the transmission hollow plate 15 by the second cylinder 17. Then, the hollow plate 15 blows the gas onto the surface of the protective film through the through hole 16. The second cylinder 17 can be used to push the hollow plates 15 closer together to adjust the airflow required for the protective film, thus achieving a convenient drying effect. This prevents the coating machine body 1 from being unable to dry the protective film after coating the surface, which would cause the coating to fall off due to friction during the winding process.
[0029] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A kind of protective film processing coating machine, including coating machine body (1) and roll shaft (2) and pedestal (3), the roll shaft (2) is rotationally connected in coating machine body (1) in symmetrical arrangement, the pedestal (3) is arranged in the lower surface of coating machine body (1) in rectangular distribution, it is characterized by: The upper surface of the coating machine body (1) is fixedly connected to two symmetrically arranged first cylinders (4). The output end of the first cylinder (4) is fixedly connected to a first connecting block (6) located in the working groove (5). The two first connecting blocks (6) are fixedly connected to a fixed shell (7) on the side away from the working groove (5). The lower surface of the fixed shell (7) is rotatably connected to a scraper (8).
2. The coating machine for processing a protective film according to claim 1, characterized by: The coating machine body (1) has a drying box (13) fixedly connected to two bases (3) on one side. The surface of the drying box (13) has two grooves. The surface of the drying box (13) is provided with a blower (14) located in the groove. The drying box (13) is provided with two hollow plates (15) arranged symmetrically. The hollow plates (15) are fixedly connected to the blowers (14).
3. The coating machine for processing a protective film according to claim 1, characterized in that: The lower surface of the scraper (8) is cut on one side, and a second connecting block (9) is fixedly connected to the upper surface of the scraper (8).
4. The coating machine for processing a protective film according to claim 3, wherein: The second connecting block (9) has fixing blocks (10) on both sides of its surface that are fixedly connected to the fixing shell (7). The surface of the fixing block (10) has five symmetrically arranged insertion holes (11).
5. The coating machine for processing a protective film according to claim 4, wherein: The five sockets (11) are distributed in a semi-circular shape, and a limiting screw (12) that passes through the second connecting block (9) is threaded at the center of each socket (11).
6. The coating machine for processing a protective film according to claim 2, wherein: The hollow plate (15) has multiple evenly distributed through holes (16) on the side surface near the drying box (13).
7. The coating machine for processing a protective film according to claim 2, wherein: The drying box (13) has two symmetrically arranged second cylinders (17) fixed on both the upper and lower sides, and the output end of the second cylinder (17) is fixedly connected to the hollow plate (15).