A gluing device for a coater
By using a multi-point linear adhesive applicator, combined with a motor-controlled glue injection tube, scraper, and pressure roller, the problem of uneven adhesive application on car wraps has been solved, and the adhesive application efficiency has been improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QIANGHAO PACKAGING TECHNOLOGY CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing coating machine, the car wrap is not evenly distributed during the coating process, which requires repeated coating and affects work efficiency.
A multi-point linear gluing method is adopted, which uses a motor-controlled glue injection tube and a scraper and pressure roller to achieve quantitative glue application and uniform smoothing.
It achieves uniform adhesive application on car wraps and improves adhesive application efficiency.
Smart Images

Figure CN224405586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paint protection film coating technology, specifically to a coating device for a coating machine. Background Technology
[0002] Car wraps are a new type of high-performance, environmentally friendly film that is widely used in the automotive window tinting and detailing industry.
[0003] It is a common name for a transparent paint protection film. It has excellent toughness and, after application, isolates the car paint from the air, providing long-lasting protection. Current coating machines typically use spot application followed by spreading with a roller. However, due to the large area of the car wrap, this method of simultaneous conveying and spreading can easily result in uneven distribution, requiring repeated application and affecting work efficiency. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model discloses a gluing device for a coating machine, including a motor housing, a main frame, support columns, mounting plates, glue boxes, pump bodies, lifting electric cylinders, mounting frames, glue injection pipe fixing frames, glue injection pipes, glue inlet pipes, glue outlet square pipes, glue injection electric cylinders, transverse electric cylinders, electric cylinder connecting plates, connecting plate limiting frames, scrapers, pressure roller frames, and pressure rollers; the main frame is a rectangular frame welded from square steel, with support columns at the four corners of its lower side; several mounting plates are arranged longitudinally at equal intervals on the main frame; the glue box is installed in the center of the upper surface of the mounting plate, with pump bodies on both its left and right sides; the lifting electric cylinder is installed on the upper surface of the mounting plate, located on the front and rear sides of the glue box, and its push rod passes through the mounting plate and is mounted on the mounting frame; the glue injection pipe... The fixing bracket is installed on the left and right sides of the upper surface of the mounting frame; the glue injection tube is installed in pairs, with a glue inlet tube on the side and a flexible hose connected to the pump body. The top of the tube is fixed on the glue injection tube fixing bracket, and the bottom passes through the mounting frame and is installed on the glue outlet square tube; the glue injection electric cylinder is installed on the glue injection tube, and the end of its push rod is fitted with a rubber plug and inserted into the glue injection tube; the transverse electric cylinder is installed on the front and rear sides of the inner wall of the main frame, located on the right side of the glue outlet square tube, and the end of its push rod is fixed to both ends of the electric cylinder connecting plate; the connecting plate limiting bracket is installed on both ends of the upper side of the electric cylinder connecting plate and is clamped on the main frame, allowing it to move laterally along the main frame; the top of the scraper is fitted with screws and fixed to the left side of the electric cylinder connecting plate, and pressure roller frames are installed on both the front and rear ends of its right side; the two ends of the pressure roller are installed on the pressure roller frames.
[0005] As a preferred technical solution of this utility model, the mounting plate is equipped with a solenoid valve and an electric control switch to control the start and stop of the pumps on both sides of the glue box.
[0006] As a preferred embodiment of this utility model, the pump body is equipped with a pipeline connected to the glue box, and periodically injects glue into the glue injection tube in a quantitative manner.
[0007] As a preferred embodiment of this utility model, the top of the dispensing square tube is connected to the dispensing tube, and the bottom dispensing port is elongated.
[0008] As a preferred technical solution of this utility model, the electric cylinder connecting plate has an elongated hole, and the scraper has arc-shaped baffles at both ends.
[0009] As a preferred embodiment of this utility model, the lower side of the scraper is tangent to the pressure roller, and the pressure roller is made of stainless steel.
[0010] The beneficial effects of this utility model are as follows: This utility model divides a large piece of car cover into multiple areas, sets up multi-point linear glue application, and applies a quantitative amount of liquid from the glue injection tube to the car cover. Then, a scraper and a pressure roller are used to help smooth it out, which makes the glue application on the car cover more uniform. Attached Figure Description
[0011] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
[0012] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0013] Figure 2 This is a top view of the present invention;
[0014] Figure 3 This is a schematic diagram of the adhesive application structure of this utility model;
[0015] In the diagram: 1. Main frame; 2. Support column; 3. Mounting plate; 4. Glue box; 5. Pump body; 6. Lifting electric cylinder; 7. Mounting bracket; 8. Glue injection pipe fixing bracket; 9. Glue inlet pipe; 10. Glue outlet square tube; 11. Glue injection electric cylinder; 12. Horizontal movement electric cylinder; 13. Electric cylinder connecting plate; 14. Connecting plate limit bracket; 15. Scraper; 16. Pressure roller frame; 17. Pressure roller; 18. Detailed Implementation
[0016] Example 1
[0017] like Figures 1 to 3As shown, this utility model discloses a gluing device for a coating machine, including a main frame 1, support columns 2, mounting plates 3, glue boxes 4, pump bodies 5, lifting electric cylinders 6, mounting frames 7, glue injection tube fixing frames 8, glue injection tubes 9, glue inlet tubes 10, glue outlet square tubes 11, glue injection electric cylinders 12, horizontal movement electric cylinders 13, electric cylinder connecting plates 14, connecting plate limiting frames 15, scrapers 16, pressure roller frames 17, and pressure rollers 18. The main frame 1 is a rectangular frame welded from square steel, with support columns 2 at the four corners of its lower side. Several mounting plates 3 are arranged longitudinally at equal intervals on the main frame 1. The glue box 4 is installed in the center of the upper surface of the mounting plate 3, with pump bodies 5 on both its left and right sides. The lifting electric cylinder 6 is installed on the upper surface of the mounting plate 3, located on the front and rear sides of the glue box 4, and its push rod passes through the mounting plate 3 and is mounted on the mounting frame 7. The glue injection tube fixing frame 8 is installed on the mounting frame 7. The upper surface of the mounting frame 7 is on both the left and right sides; the glue injection tubes 9 are installed in pairs, with glue inlet tubes 10 on the side and hoses connected to the pump body 5. The top of the tubes is fixed on the glue injection tube fixing frame 8, and the bottom passes through the mounting frame 7 and is installed on the glue outlet square tube 11; the glue injection electric cylinder 12 is installed on the glue injection tube 9, and the end of its push rod is fitted with a rubber plug and inserted into the glue injection tube 9; the transverse electric cylinder 13 is installed on the front and rear sides of the inner wall of the main frame 1, located on the right side of the glue outlet square tube 11, and the end of its push rod is fixed to both ends of the electric cylinder connecting plate 14; the connecting plate limiting frame 15 is installed on both ends of the upper side of the electric cylinder connecting plate 14 and is clamped on the main frame 1, and can move laterally along the main frame 1; the top of the scraper 16 is fitted with screws and fixed to the left side of the electric cylinder connecting plate 14, and pressure roller frames 17 are installed on both the front and rear ends of its right side; the two ends of the pressure roller 18 are installed on the pressure roller frames 17. The mounting plate 3 is equipped with a solenoid valve and an electric control switch, which control the start and stop of the pumps 5 on both sides of the glue box 4. Multiple glue injection tubes are connected to the pumps 5 with hoses, and the liquid in the glue box 4 is injected into the glue injection tubes 9 through the pumps. The top of the glue outlet square tube 11 is connected to the glue injection tube 9, and the bottom glue outlet is long and narrow. After the lifting electric cylinder 6 pushes the rod down, it is attached to the car cover. After the pump is started, a metered amount of glue is injected into the glue injection tube 9 and then stopped. Then the glue injection electric cylinder 12 pushes the rod out to eject the glue inside the glue injection tube 9.
[0018] The working principle of this utility model is as follows: During glue application, the car cover is first laid horizontally flat under the main frame 1 and fixed. A pad is placed under the car cover, ensuring its width does not exceed the length of the glue dispensing square tube 11. Then, the lifting electric cylinder 6 is extended to attach the glue dispensing square tube 11 to the car cover. The pump body 5 is then activated, allowing a measured amount of glue to be pumped from the glue box 4 through the hose into all the glue dispensing tubes 9 before being closed. Finally, the glue dispensing electric cylinder 12 is extended to pump out all the glue in the glue dispensing tubes 9, which are then applied to the car cover via the glue dispensing square tube 11. The glue dispensing electric cylinder 12 and the lifting electric cylinder 6 are then retracted. The horizontal movement electric cylinder 13 is then extended, causing the scraper 16 and pressure roller to move to the left, spreading the glue horizontally. The car cover can then be moved to move any uncoated areas below the glue dispensing square tube 11, repeating the above operations to achieve uniform glue application.
[0019] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.
Claims
1. A gluing device for a coating machine, characterized in that: The system includes a main frame (1), support columns (2), mounting plates (3), glue boxes (4), pump bodies (5), lifting electric cylinders (6), mounting brackets (7), glue injection pipe fixing brackets (8), glue injection pipes (9), glue inlet pipes (10), glue outlet square pipes (11), glue injection electric cylinders (12), horizontal movement electric cylinders (13), electric cylinder connecting plates (14), connecting plate limit brackets (15), scrapers (16), pressure roller brackets (17), and pressure rollers (18); the main frame (1) is a rectangular frame. It is made of square steel welded together, with support columns (2) at the four corners of its lower side; several mounting plates (3) are arranged longitudinally at equal intervals on the main frame (1); the glue box (4) is installed in the center of the upper surface of the mounting plate (3), and pump bodies (5) are provided on both its left and right sides; the lifting electric cylinder (6) is installed on the upper surface of the mounting plate (3), located on the front and rear sides of the glue box (4), and its push rod passes through the mounting plate (3) and is installed on the mounting frame (7); the glue injection tube fixing bracket (8) is installed on the mounting frame (7). 7) The upper surface on both sides; the glue injection tube (9) is installed in pairs, with a glue inlet tube (10) on its side and a hose connected to the pump body (5). Its top is fixed on the glue injection tube fixing bracket (8), and its bottom passes through the mounting bracket (7) and is installed on the glue outlet square tube (11); the glue injection electric cylinder (12) is installed on the glue injection tube (9), and its push rod end is fitted with a rubber plug and inserted into the glue injection tube (9); the transverse electric cylinder (13) is installed on the front and rear sides of the inner wall of the main frame (1). On the side, located on the right side of the dispensing square tube (11), the end of its push rod is fixed to both ends of the electric cylinder connecting plate (14); the connecting plate limiting frame (15) is installed on both ends of the upper side of the electric cylinder connecting plate (14) and is clamped on the main frame (1), and can move laterally along the main frame (1); the top of the scraper (16) is fitted with screws and fixed to the left side of the electric cylinder connecting plate (14), and pressure roller frames (17) are installed at both ends of its right side front and rear; the two ends of the pressure roller (18) are installed on the pressure roller frames (17).
2. The gluing device for a coating machine according to claim 1, characterized in that: The mounting plate (3) is equipped with a solenoid valve and an electric control switch to control the start and stop of the pump bodies (5) on both sides of the plastic box (4).
3. The gluing device for a coating machine according to claim 2, characterized in that: The pump body (5) is equipped with a pipeline connected to the glue box (4) and periodically injects glue into the glue injection tube (9) in a quantitative manner.
4. The gluing device for a coating machine according to claim 1, characterized in that: The top of the dispensing square tube (11) is connected to the dispensing tube (9), and the bottom dispensing port is elongated.
5. The gluing device for a coating machine according to claim 1, characterized in that: The electric cylinder connecting plate (14) has an elongated hole, and the scraper (16) has arc-shaped baffles at both ends.
6. The gluing device for a coating machine according to claim 1, characterized in that: The lower side of the scraper (16) is tangent to the pressure roller (18), which is made of stainless steel.