Gluing machine for producing automobile license plate reflective film

By designing the scraper and adhesive collection mechanism in the adhesive applicator, the problem of uneven adhesive application was solved, enabling precise control of the amount of adhesive applied and reducing pollution, thus improving the adhesive application quality of car license plate reflective film.

CN223543315UActive Publication Date: 2025-11-14CHANGZHOU JINTUO CHANGSHUN SIGN CO LTD
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Patent Information

Application Number
CN202422927072.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-11-14
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Existing glue-applying machines cannot precisely control the amount of glue applied, resulting in unstable coating thickness of car license plate reflective film and affecting quality.

Method used

A glue applicator was designed, comprising a glue applicator roller, a conveyor roller, a fixed frame, a bidirectional lead screw, a movable block, a scraper, and a glue collection mechanism. The scraper removes excess glue, and the glue collection mechanism collects excess glue to avoid contamination.

Benefits of technology

It enables precise control of the amount of adhesive applied, improves the coating quality of the reflective film, and avoids contamination caused by adhesive falling from the edges.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223543315U_ABST
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Abstract

The utility model relates to the technical field of reflective films, in particular to a gluing machine for producing an automobile license plate reflective film, which is characterized in that a fixing frame is fixedly arranged in a casing and positioned on the left side above a right conveying roller, a bidirectional lead screw is rotatably arranged in the fixing frame in a penetrating manner through a bearing, and the front end of the bidirectional lead screw is fixedly provided with an adjusting handle after penetrating through the casing; the two-way lead screw is rotationally sleeved with the movable block through threads, the movable block is movably arranged in a movable groove formed in the fixed frame, connecting rods are hinged to the movable block, the movable frame is hinged to one ends of the two connecting rods, a scraping plate is fixedly arranged on the movable frame, and a glue collecting mechanism is arranged in the movable frame. And pollution caused by the fact that glue falls off from the edge of the reflective film is avoided, and the gluing quality of the reflective film is improved.
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Description

Technical Field

[0001] This utility model relates to the field of reflective film technology, specifically to a coating machine for producing reflective film for automobile license plates. Background Technology

[0002] Reflective film is a novel reflective material formed by combining a reflective layer made of glass microspheres with polymer materials such as PVC and PU using a special process. It is often used on car license plates. Existing glue coating machines use mesh coating or needle drop coating, which cannot accurately control the amount of glue applied, resulting in unstable coating thickness and affecting the quality of the reflective film. Therefore, there is an urgent need for a glue coating machine for the production of car license plate reflective film. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a reasonably designed adhesive coating machine for producing reflective film for car license plates, thereby solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a housing, a glue-applying roller, and a conveying roller, with the glue-applying roller located in the middle of the housing and conveying rollers located on both the left and right sides of the housing.

[0005] It also includes:

[0006] A fixed frame is fixedly installed inside the machine housing and located on the left side above the right conveyor roller. A bidirectional lead screw is rotatably installed inside the fixed frame via a bearing. An adjustment handle is fixedly installed at the front end of the bidirectional lead screw after it passes through the machine housing.

[0007] The movable blocks are two in number, both of which are rotatably mounted on a two-way lead screw via threads, and are movably disposed in movable slots opened on a fixed frame. Connecting rods are hinged to the movable blocks.

[0008] A movable frame is hinged to one end of two connecting rods, a scraper is fixedly installed on the movable frame, and an adhesive collection mechanism is provided inside the movable frame.

[0009] Furthermore, the adhesive collection mechanism includes:

[0010] An adhesive roller is rotatably mounted in a movable frame via a bearing. A sponge roller is rotatably mounted in the movable frame at the upper left position of the adhesive roller via a bearing, and the sponge roller is movably in contact with the adhesive roller.

[0011] The extrusion roller is rotatably mounted in the movable frame via bearings and is located to the left of the sponge roller. The extrusion roller and the sponge roller are movably in contact. The extrusion roller and the adhesive roller are connected by a pulley and belt drive, and the extrusion roller and the sponge roller are connected by a gear drive.

[0012] The motor is fixedly mounted on the side wall of the movable frame. The output shaft of the motor is connected to the extrusion roller. A guide frame is fixedly mounted inside the movable frame at the left side of the adhesive roller. Flexible hoses are fixedly mounted on the front and rear side walls of the guide frame. A collection cylinder is fixedly mounted on the front and rear side walls of the machine housing. One end of the flexible hose passes through the machine housing and is connected to the collection cylinder.

[0013] Furthermore, several guide rods are fixedly installed on the movable frame, with one end of each guide rod movably inserted into the fixed frame.

[0014] Furthermore, a rangefinder is fixedly mounted on the mobile frame, and a display screen is fixedly mounted on the front side wall of the housing. The rangefinder and the display screen are electrically connected.

[0015] Furthermore, a hot air blower is fixedly installed at the top right side of the casing.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the glue coating machine for producing car license plate reflective film described in this utility model can not only scrape off the excess glue on the reflective film, but also prevent the glue from falling off the edge of the reflective film and causing pollution, thereby improving the glue coating quality of the reflective film. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the casing in this utility model.

[0019] Figure 3 yes Figure 2 Enlarged view of part A in the image.

[0020] Figure 4 This is an exploded view of the parts of the fixed frame, bidirectional lead screw, movable block, connecting rod, movable frame, scraper, adhesive collection mechanism, guide rod and rangefinder in this utility model.

[0021] Figure 5 yes Figure 4 Enlarged view of part B in the image.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Casing; 2. Glue-applying roller; 3. Conveying roller; 4. Fixed frame; 5. Bidirectional lead screw; 6. Adjusting handle; 7. Movable block; 8. Movable groove; 9. Connecting rod; 10. Moving frame; 11. Scraper; 12. Glue collection mechanism; 12-1. Adhesive roller; 12-2. Sponge roller; 12-3. Extrusion roller; 12-4. Motor; 12-5. Guide frame; 12-6. Hose; 12-7. Collection cylinder; 13. Guide rod; 14. Rangefinder; 15. Display screen; 16. Hot air blower. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] like Figures 1-3 As shown, the specific embodiment adopts the following technical solution: it includes a housing 1, a coating roller 2 and a conveying roller 3. The coating roller 2 is provided in the middle of the housing 1, and the conveying roller 3 is provided on both the left and right sides of the housing 1. A hot air blower 16 is fixedly installed at the top right position inside the housing 1. The hot air blower 16 can realize the hot drying of the adhesive applied on the reflective film.

[0026] It also includes:

[0027] The fixed frame 4 is fixedly installed inside the housing 1 and located on the left side above the right conveyor roller 3. A bidirectional lead screw 5 is rotatably installed inside the fixed frame 4 through a bearing. An adjustment handle 6 is fixedly installed after the front end of the bidirectional lead screw 5 passes through the housing 1.

[0028] Movable block 7, there are two movable blocks 7, both of which are rotatably mounted on the bidirectional lead screw 5 by thread, and the movable blocks 7 are movably mounted in the movable slot 8 opened on the fixed frame 4, and the movable blocks 7 are hinged to the connecting rod 9.

[0029] A movable frame 10 is hinged to one end of two connecting rods 9. A scraper 11 is fixedly installed on the movable frame 10. An adhesive collection mechanism 12 is provided inside the movable frame 10. Several guide rods 13 are fixedly installed on the movable frame 10. One end of the guide rod 13 is movably inserted into the fixed frame 4. The guide rods 13 can provide auxiliary guidance for the movement of the movable frame 10 and improve the stability of the movable frame 10. A rangefinder 14 is fixedly installed on the movable frame 10. A display screen 15 is fixedly installed on the front side wall of the housing 1. The rangefinder 14 is electrically connected to the display screen 15. The rangefinder 14 can realize the distance measurement between itself and the reflective film, and the display screen 15 digitally displays the measured information so that the staff can accurately understand the distance between the scraper 11 and the reflective film.

[0030] The adhesive collection mechanism 12 includes:

[0031] Adhesive roller 12-1 is rotatably mounted in movable frame 10 via bearing. Sponge roller 12-2 is rotatably mounted in movable frame 10 at the upper left position above adhesive roller 12-1 via bearing, and sponge roller 12-2 is movably abutting against adhesive roller 12-1.

[0032] The extrusion roller 12-3 is rotatably mounted in the movable frame 10 via bearings and is located to the left of the sponge roller 12-2. The extrusion roller 12-3 and the sponge roller 12-2 are movably in contact. The extrusion roller 12-3 is connected to the adhesive roller 12-1 via a pulley and belt drive, and the extrusion roller 12-3 and the sponge roller 12-2 are connected via gear drive.

[0033] Motor 12-4 is fixedly mounted on the side wall of the movable frame 10. The output shaft of motor 12-4 is connected to the extrusion roller 12-3. Inside the movable frame 10, a guide frame 12-5 is fixedly mounted on the left side of the adhesive roller 12-1. A flexible hose 12-6 is fixedly mounted on both the front and rear side walls of the guide frame 12-5. A collection cylinder 12-7 is fixedly mounted on both the front and rear side walls of the housing 1. One end of the flexible hose 12-6 passes through the housing 1 and connects to the collection cylinder 12-7.

[0034] When using this invention, the rotating conveyor roller 3 can move the reflective film to the right. At this time, the coating roller 2 applies adhesive to the reflective film, while the scraper 11 scrapes off excess adhesive and causes it to accumulate. Then, the motor 12-4 is started, driving the extrusion roller 12-3 to rotate. Through the transmission of the pulley and belt, the adhesive roller 12-1 rotates synchronously. Through the transmission of the gears, the sponge roller 12-2 rotates synchronously in the opposite direction. The adhesive accumulated on the scraper 11 adheres to the adhesive roller 12-1, and the sponge roller 12-2 sucks in the adhesive from the adhesive roller 12-1, and then... The extrusion roller 12-3 extrudes the sponge roller 12-2, causing the adhesive material inside the sponge roller 12-2 to be squeezed onto the guide frame 12-5. Subsequently, the adhesive material on the guide frame 12-5 enters the collection cylinder 12-7 through the hose 12-6 to collect excess adhesive material. When it is necessary to adjust the distance between the scraper 11 and the reflective film according to the requirements, the adjustment handle 6 can be rotated. The adjustment handle 6 drives the bidirectional lead screw 5 to rotate, so that the movable blocks 7 on both sides move in opposite directions synchronously. With the cooperation of the connecting rod 9, the distance between the moving frame 10 and the fixed frame 4 is changed, thereby realizing the adjustment of the distance between the scraper 11 and the reflective film.

[0035] Compared with the prior art, the beneficial effects of this utility model are:

[0036] With the cooperation of the fixed frame 4, the two-way lead screw 5, the adjusting handle 6, the movable block 7, the connecting rod 9, the moving frame 10 and the scraper 11, not only can the excess adhesive on the reflective film be scraped off, but it can also be adjusted according to the needs.

[0037] With the cooperation of the adhesive collection mechanism 12, the excess adhesive scraped off the reflective film can be collected, preventing the adhesive from falling from the edge of the reflective film and causing pollution, thus improving the coating quality of the reflective film.

[0038] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A coating machine for producing reflective film for car license plates, comprising a housing (1), a coating roller (2) and a conveying roller (3), wherein the coating roller (2) is provided in the middle of the housing (1), and the conveying roller (3) is provided on both the left and right sides of the housing (1). Its features are: It also includes: The fixed frame (4) is fixedly installed inside the housing (1) and located on the left side above the right conveyor roller (3). A two-way screw (5) is rotatably installed inside the fixed frame (4) through a bearing. An adjustment handle (6) is fixedly installed at the front end of the two-way screw (5) after passing through the housing (1). Two movable blocks (7) are provided, both of which are rotatably mounted on the bidirectional lead screw (5) by thread, and the movable blocks (7) are movably mounted in the movable slot (8) opened on the fixed frame (4). A connecting rod (9) is hinged on the movable block (7). The movable frame (10) is hinged to one end of two connecting rods (9), and a scraper (11) is fixedly installed on the movable frame (10). The movable frame (10) is equipped with a glue collection mechanism (12).

2. The adhesive coating machine for producing reflective film for automobile license plates according to claim 1, characterized in that: The adhesive collection mechanism (12) includes: Adhesive roller (12-1), the adhesive roller (12-1) is rotatably mounted in the movable frame (10) via a bearing, and a sponge roller (12-2) is rotatably mounted in the movable frame (10) at the position above the adhesive roller (12-1) via a bearing, and the sponge roller (12-2) is movably abutting against the adhesive roller (12-1); The extrusion roller (12-3) is rotatably mounted in the movable frame (10) via a bearing and is located to the left of the sponge roller (12-2). The extrusion roller (12-3) and the sponge roller (12-2) are movably in contact. The extrusion roller (12-3) is connected to the adhesive roller (12-1) via a pulley and belt drive, and the extrusion roller (12-3) and the sponge roller (12-2) are connected via a gear drive. The motor (12-4) is fixedly installed on the side wall of the movable frame (10). The output shaft of the motor (12-4) is connected to the extrusion roller (12-3). A guide frame (12-5) is fixedly installed inside the movable frame (10) at the left side of the adhesive roller (12-1). A hose (12-6) is fixedly installed on the front and rear side walls of the guide frame (12-5). A collection cylinder (12-7) is fixedly installed on the front and rear side walls of the housing (1). One end of the hose (12-6) passes through the housing (1) and connects to the collection cylinder (12-7).

3. The adhesive coating machine for producing reflective film for automobile license plates according to claim 1, characterized in that: Several guide rods (13) are fixedly installed on the movable frame (10), and one end of the guide rod (13) is movably inserted into the fixed frame (4).

4. The adhesive coating machine for producing reflective film for automobile license plates according to claim 1, characterized in that: A rangefinder (14) is fixedly installed on the mobile frame (10), and a display screen (15) is fixedly installed on the front side wall of the housing (1). The rangefinder (14) and the display screen (15) are electrically connected.

5. The adhesive coating machine for producing reflective film for automobile license plates according to claim 1, characterized in that: A hot air blower (16) is fixedly installed at the top right side of the casing (1).