Back coating device for laser film production

Abstract

The utility model discloses a back coating device for laser film production, which comprises a base, a second vertical plate is arranged on the base, two groups of conveying rollers are rotatably arranged on the second vertical plate, a first vertical plate is fixedly arranged on the base, a guide roller and a glue coating roller are rotatably arranged on the first vertical plate, and a glue box is fixedly arranged on the base. A glue flattening roller is movably arranged between the first vertical plates, the glue flattening roller is arranged above the glue box, a stirring plate is fixedly arranged at the bottom of the glue flattening roller, a friction plate is arranged at the bottom of the glue box, a moving plate is arranged below the friction plate, a moving groove is formed in the base, and the moving wheels move in the moving groove. The utility model relates to the technical field of laser film processing. According to the back coating device for laser film production, glue is flattened through the glue coating roller, meanwhile, the glue can be stirred and heated, uniform gluing is achieved, and glue dry floating and glue solidification are prevented.

Description

Technical Field

[0001] This utility model relates to the field of laser film processing technology, specifically a back coating device for laser film production. Background Technology

[0002] Laser film is a functional thin film with holographic laser optical effects. Through micro-nano structure design and precision coating technology, it achieves unique dynamic gloss, three-dimensional patterns or anti-counterfeiting marks. It is widely used in packaging printing, dot display, building material decoration and security anti-counterfeiting fields. The back coating device in the production of laser film is the key equipment to ensure that the functional layer (such as adhesive, protective layer, etc.) is uniformly coated on the back of the film.

[0003] Existing back coating equipment for laser film production is prone to glue solidification due to temperature drop during use. Furthermore, the glue at the bottom of the glue tank is not easily used and settles there for a long time, causing dried flowers to float to the surface, resulting in low glue utilization efficiency. In addition, the glue flow on the coating roller during use can easily cause uneven application, resulting in air bubbles in the laser film after back coating and uneven adhesion.

[0004] To address these issues, this invention provides a back coating apparatus for laser film production. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a back coating device for laser film production, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a back coating device for laser film production, comprising a base, a second vertical plate on the base, two sets of conveying rollers rotatably mounted on the second vertical plate, the conveying rollers being arranged perpendicularly and symmetrically, a first vertical plate fixedly mounted on the base, a guide roller and a coating roller rotatably mounted on the first vertical plate, a glue box fixedly mounted on the base, a portion of the bottom of the coating roller being located inside the glue box, a flat glue roller movably mounted between the first vertical plates, the flat glue roller being positioned above the glue box and adjacent to the coating roller on one side, a stirring plate fixedly mounted at the bottom of the flat glue roller, the stirring plate being positioned inside the glue box, a friction plate being positioned at the bottom of the glue box, a moving plate being positioned below the friction plate, a moving groove being provided on the base, and a moving wheel moving within the moving groove.

[0007] Preferably, a motor is fixedly installed on one side of the second vertical plate and the first vertical plate, and the output ends of the two sets of motors are respectively connected to the conveying roller and the coating roller.

[0008] Preferably, a guide roller is rotatably provided on the upper side of the glue-applying roller, a synchronous wheel is fixedly sleeved on one end of the guide roller, and a synchronous belt meshes with the surface of the synchronous wheel and the output end surface of the motor. The first vertical plate is rotatably connected to the guide roller and the glue-applying roller.

[0009] Preferably, a stepper motor is fixedly installed on one side of the first vertical plate, a telescopic rod is provided between the stepper motor and the flat rubber roller, the lower end of the telescopic rod is movably connected to a movable shaft, the movable shaft is fixed on one side of the moving plate, a movable wheel is movably provided on the lower side of the moving plate, a movable groove is provided on the bottom surface of the moving plate, the output end of the stepper motor is fixedly connected to the flat rubber roller, and an agitator is fixedly provided on the side of the flat rubber roller.

[0010] Preferably, a friction plate is recessed on the bottom surface of the glue box.

[0011] Preferably, the top surface of the friction plate is attached to the bottom of the glue box, the bottom surface of the friction plate is attached to the top surface of the moving plate, and the moving plate is provided with movable casters below it.

[0012] This invention provides a back coating apparatus for laser film production. Compared with the prior art, it has the following advantages:

[0013] (1) The back coating device for laser film production uses a stepper motor to drive the flat glue roller to reciprocate. The reciprocating flat glue roller will smooth the glue on the glue-covered coating roller, so that the glue is applied evenly and the uneven glue on the coating roller will affect the application of the laser film, thus preventing the generation of air bubbles and uneven glue application.

[0014] (2) The back coating device for laser film production drives the stirring plate to stir back and forth in the glue box through the reciprocating rotating flat glue roller, so that the glue in the glue box 2 is fully utilized and the dried flowers are prevented from floating.

[0015] (3) The back coating device for laser film production uses a telescopic rod to drive a moving plate via a movable shaft and a moving wheel to achieve reciprocating horizontal movement of the moving plate. The top surface of the moving plate, which reciprocates horizontally in the moving groove, rubs back and forth with a friction plate embedded in the bottom recess of the glue box, causing the friction plate to heat up and thus heat the glue in the glue box from the bottom of the glue box, preventing the glue from solidifying due to low temperature. Attached Figure Description

[0016] Figure 1 This is a front perspective view of a back coating device for laser film production proposed in this utility model;

[0017] Figure 2 This is a side perspective view of a back coating device for laser film production proposed in this utility model;

[0018] Figure 3 This is a vertically cut structural diagram of a back coating device for laser film production proposed in this utility model;

[0019] Figure 4 This is a cross-sectional view of a back coating device for laser film production proposed in this utility model;

[0020] Figure 5 This is a utility model Figure 3 Schematic diagram of the structure at point A in the middle;

[0021] Figure 6 This is an enlarged view of the friction plate of a back coating device for laser film production proposed in this utility model.

[0022] In the diagram: 1. Base; 2. Glue box; 3. Glue application roller; 4. Guide roller; 5. First vertical plate; 6. Conveyor roller; 7. Second vertical plate; 8. Synchronous belt; 9. Synchronous pulley; 10. Motor; 11. Stepper motor; 12. Flat glue roller; 13. Agitator plate; 14. Movable shaft; 15. Telescopic rod; 16. Friction plate; 17. Moving plate; 18. Moving wheel; 19. Moving groove. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] See Figure 1-6 A back coating device for laser film production includes a base 1, a second vertical plate 7 on the base 1, two sets of conveying rollers 6 rotatably mounted on the second vertical plate 7, the conveying rollers 6 being arranged vertically and symmetrically, a first vertical plate 5 fixedly mounted on the base 1, a guide roller 4 and a coating roller 3 rotatably mounted on the first vertical plate 5, a glue box 2 fixedly mounted on the base 1, a portion of the bottom of the coating roller 3 being located inside the glue box 2, a flat glue roller 12 movably mounted between the first vertical plates 5, the flat glue roller 12 being positioned above the glue box 2, the flat glue roller 12 being adjacent to one side of the coating roller 3, a stirring plate 13 fixedly mounted at the bottom of the flat glue roller 12, the stirring plate 13 being located inside the glue box 2, a friction plate 16 at the bottom of the glue box 2, a moving plate 17 below the friction plate 16, a moving groove 19 on the base 1, and a moving wheel 18 moving inside the moving groove 19.

[0025] It should be noted that the movable groove 19 ensures the range of movement of the movable wheel 18 and prevents instability during the movement friction process.

[0026] In an optional embodiment: a motor 10 is fixedly provided on one side of the second vertical plate 7 and the first vertical plate 5, and the output ends of the two sets of motors 10 are respectively connected to the conveying roller 6 and the glue coating roller 3.

[0027] It should be noted that by setting up two sets of motors, the normal operation of the conveyor roller 6 and the coating roller 3 is achieved.

[0028] In an optional embodiment: a guide roller 4 is rotatably provided on the upper side of the glue-applying roller 3, a synchronous wheel 9 is fixedly sleeved on one end surface of the guide roller 4, and a synchronous belt 8 is meshed between the surface of the synchronous wheel 9 and the output end surface of the motor 10. The first vertical plate 5 is rotatably connected to the guide roller 4 and the glue-applying roller 3.

[0029] It should be noted that the synchronous belt 8 drives the rotation of the synchronous wheel 9, thereby achieving synchronous operation of the guide roller 4 and the coating roller 3.

[0030] In an optional embodiment: a stepper motor 11 is fixedly provided on one side of the first vertical plate 5, a telescopic rod 15 is provided between the stepper motor 11 and the flat rubber roller 12, the lower end of the telescopic rod 15 is movably connected to the movable shaft 14, the movable shaft 14 is fixed on one side of the moving plate 17, the lower side of the moving plate 17 is movably provided with a moving wheel 18, the bottom surface of the moving plate 17 is provided with a moving groove 19, the output end of the stepper motor 11 is fixedly connected to the flat rubber roller 12, and the side of the flat rubber roller 12 is fixedly provided with an agitator 13.

[0031] It should be noted that by setting up the flat glue roller 12 and the stirring plate 13, the glue is leveled on the glue roller 3 and the glue in the glue box 2 is stirred, so as to achieve uniform glue application on the laser film and prevent the glue from drying and floating.

[0032] In an optional embodiment, a friction plate 16 is recessed on the outer bottom surface of the glue box 2.

[0033] It should be noted that the friction plate 16 prevents the moving plate 17 from directly rubbing against the glue box 2, thus ensuring the continuous use of the glue box 2.

[0034] In an optional embodiment: the top surface of the friction plate 16 is attached to the bottom of the glue box 2, the bottom surface of the friction plate 16 is attached to the top surface of the movable plate 17, and a movable wheel 18 is movably provided below the movable plate 17.

[0035] It should be noted that the friction plate 16 and the moving plate 17 generate heat through friction, which heats the glue box 2 and prevents the glue from solidifying due to low temperature.

[0036] During operation, the equipment is first powered on and the glue tank 2 is filled with glue. The stepper motor 11 and two motors 10 are powered on. The two motors 10 drive the synchronous pulley 9 via the synchronous belt 8, causing the two conveyor rollers 6 to rotate. The laser film passes between the rotating conveyor rollers 6 and is conveyed to the rear. The coating roller 3 and guide roller 4 also rotate. The lower end of the rotating coating roller 3 is coated with glue in the glue tank 2. At this time, the stepper motor 11 drives the flat glue roller 12 to rotate back and forth. The reciprocating flat glue roller 12 smooths the glue on the coating roller 3, making the glue application even and preventing uneven glue on the coating roller 3 from affecting the application of the laser film. It also prevents the formation of air bubbles and uneven glue application. Then, the reciprocating flat glue roller 12 drives the agitator. Plate 13 agitates back and forth in glue box 2, making full use of the glue in glue box 2 and preventing dried flowers from floating. One end of the reciprocating flat glue roller 12 also drives the telescopic rod 15 to move. The moving telescopic rod 15 drives the moving plate 17 through the movable shaft 14 and the moving wheel 18 to achieve the reciprocating horizontal movement of the moving plate 17. The top surface of the moving plate 17, which reciprocates horizontally in the moving groove 19, rubs back and forth with the friction plate 16 embedded in the bottom recess of glue box 2. The friction plate 16 will generate heat, thereby heating the glue in the glue box 2 and preventing the glue from solidifying due to low temperature. At this time, the laser film conveyed from the conveyor roller 6 will be evenly coated with glue by the glue coating roller 3, which is covered with glue, for the next step of processing.

[0037] 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.

[0038] 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. A back-coating device for laser film production, comprising a base (1), characterized in that: The base (1) is provided with a second vertical plate (7), two groups of conveying rollers (6) are rotatably arranged on the second vertical plate (7), a first vertical plate (5) is fixedly arranged on the base (1), a guide roller (4) and a glue roller (3) are rotatably arranged on the first vertical plate (5), a glue box (2) is fixedly arranged on the base (1), a part of the bottom of the glue roller (3) is located in the glue box (2), a flat glue roller (12) is movably arranged on the first vertical plate (5), the flat glue roller (12) is arranged above the glue box (2), the flat glue roller (12) is adjacent to one side of the glue roller (3), a stirring plate (13) is fixedly arranged at the bottom of the flat glue roller (12), the stirring plate (13) is arranged in the glue box (2), a friction plate (16) is arranged at the bottom of the glue box (2), a moving plate (17) is arranged below the friction plate (16), a moving groove (19) is arranged on the base (1), a moving wheel (18) is movably arranged at the lower side of the moving plate (17), and the moving wheel (18) is movably arranged in the moving groove (19).

2. The back coating device for laser film production according to claim 1, characterized in that: The second vertical plate (7) and the first vertical plate (5) are fixedly provided with a motor (10) on one side, and the output ends of the two groups of motors (10) are connected with the conveying rollers (6) and the glue roller (3) respectively.

3. The back-coating device for laser film production according to claim 2, characterized in that: The surface of one end of the guide roller (4) is fixedly sleeved with a synchronous wheel (9), the surface of the synchronous wheel (9) is meshed with a synchronous belt (8) on the surface of the output end of the motor (10), and the first vertical plate (5), the guide roller (4) and the glue roller (3) are rotatably connected.

4. The back-coating device for laser film production according to claim 1, characterized in that: The first vertical plate (5) is fixedly provided with a stepping motor (11) on one side, a telescopic rod (15) is arranged between the stepping motor (11) and the flat glue roller (12), the lower end of the telescopic rod (15) is movably connected with a movable shaft (14), and the movable shaft (14) is fixed on one side of the moving plate (17).

5. The back-coating device for laser film production according to claim 1, characterized in that: The outer bottom surface of the glue box (2) is recessed with a friction plate (16).

6. The back-coating device for laser film production according to claim 5, characterized in that: The top surface of the friction plate (16) is arranged in close contact with the bottom of the glue box (2), and the bottom surface of the friction plate (16) is arranged in close contact with the top surface of the moving plate (17).

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