Laminating machine suitable for label rolling film

Abstract

The utility model relates to the technical field of printing and packaging equipment, in particular to a film laminating machine suitable for label rolling films. A shell is arranged at one end of the rack, a film supply assembly, a feeding assembly and a processing assembly are rotationally connected into the shell through bearings and the shell, an unwinding shaft frame is arranged on the other side of the shell, a film unwinding shaft is arranged on the unwinding shaft frame, a guide set wheel is arranged behind the film unwinding shaft, a tensioning roller is arranged above the guide set wheel, and a coating set wheel is arranged in front of the tensioning roller. The unwinding device comprises a fixing frame and an unwinding shaft, a sliding groove is formed in the lower end of the fixing frame, guide rails are arranged at the positions, corresponding to the sliding groove, of the two sides of the rack, a smoothing roller is arranged at the front end of the unwinding device, a rubber pressure roller is arranged below the hot pressing roller, and only flattened materials can pass through a gap between the hot pressing roller and the rubber pressure roller. And a winding shaft is arranged below the rubber pressure roller. Compared with the prior art, the tension force in the film covering operation process is adjusted to keep flat, impurities and bubbles are reduced, and the film covering precision and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of printing and packaging equipment technology, specifically a laminating machine suitable for roll label film. Background Technology

[0002] Lamination, as an important post-printing processing method, can significantly improve the gloss, abrasion resistance, and water resistance of printed materials. However, traditional lamination processes have limitations, such as low efficiency, inconsistent quality, and significant environmental impact. Meanwhile, intensifying market competition and increasingly stringent quality requirements for printed materials necessitate improving efficiency and quality stability, while avoiding issues like insufficient tension leading to loosening or wrinkling that could disrupt production. Utility Model Content

[0003] To address the problems mentioned in the background art, a laminating machine suitable for label film is provided, comprising a frame, a housing at one end of the frame with an opening on one side, and a conveyor belt at the other end of the frame. The conveyor belt feeds material into the housing through the opening. Inside the housing, a film supply assembly, a material supply assembly, and a processing assembly are rotatably connected to the housing via bearings. The film supply assembly includes a film unwinding shaft, guide rollers, tension rollers, coating rollers, and a heating oven. An unwinding shaft frame is located on the other side of the housing, with a film unwinding shaft mounted on it. Guide rollers are located behind the film unwinding shaft. A tension roller is located above the guide rollers, a coating roller is located in front of the tension rollers, and a heating oven is located above the coating rollers. The feeding assembly includes an unwinding device and a smoothing roller. The unwinding device includes a fixed frame and an unwinding shaft. A groove is located at the lower end of the fixed frame, and guide rails are located on both sides of the frame at the corresponding positions of the groove. A smoothing roller is located at the front end of the unwinding device. The processing assembly includes a hot press roller, a rubber pressure roller, and a take-up shaft. A rubber pressure roller is located below the hot press roller. The gap between the hot press roller and the rubber pressure roller is only wide enough for flat material to pass through. A take-up shaft is located below the rubber pressure roller.

[0004] The frame is equipped with a dust suction and sweeping device on the upper end of the side near the conveyor belt.

[0005] The fixing frame has arc-shaped feeding ports on both sides, diagonally above the unwinding shaft.

[0006] An adjustment mechanism is fitted onto the unwinding shaft. One end of the adjustment mechanism is provided with a fixing block, and the other end is provided with a rubber limiting block. A spring is provided on one side of the rubber limiting block, and a stop block is provided on the other side of the spring.

[0007] The slide is equipped with a positioning pin.

[0008] Compared with the prior art, this invention adjusts the tension during the coating process to maintain flatness, reduce impurities and air bubbles, and improve the precision and quality of coating. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a front view of the unwinding device.

[0011] Figure 3 This is a side view of the unwinding device.

[0012] See Figures 1 to 2 1. Frame, 2. Housing, 3. Conveyor belt, 4. Film unwinding shaft, 5. Guide rollers, 6. Tensioning roller, 7. Coating rollers, 8. Heating oven, 9. Unwinding device, 10. Smoothing roller, 11. Hot press roller, 12. Rubber pressure roller, 13. Rewinding shaft, 14. Fixing frame, 15. Unwinding shaft, 16. Guide rail, 17. Slide rail, 18. Moving plate, 19. Rubber limit block, 20. Spring, 21. Pneumatic telescopic rod, 22. Dust cleaning device, 23. Roll material. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] like Figures 1 to 3 A laminating machine suitable for label film includes a frame 1, a housing 2 at one end of the frame 1, an opening on one side of the housing 2, and a conveyor belt 3 at the other end of the frame 1. The conveyor belt 3 feeds into the housing 2 through the opening. Inside the housing 2, a film supply assembly, a material supply assembly, and a processing assembly are rotatably connected to the housing via bearings. Each assembly is connected to a motor drive device. The film supply assembly includes a film unwinding shaft 4, guide rollers 5, tension rollers 6, coating rollers 7, and a heating oven 8. An unwinding shaft frame is located on the other side of the housing 2, with the film unwinding shaft 4 mounted on it. The guide rollers 5 are located behind the film unwinding shaft 4, and the tension rollers 6 are located above the guide rollers 5. The coating rollers 7 are located in front of the tension rollers 6, and the heating oven 8 is located above the coating rollers 7. The material supply assembly includes an unwinding device 9 and a smoothing roller 10. The smoothing roller 10 is located at the front end of the unwinding device. The processing assembly includes a hot press roller 11, a rubber pressure roller 12, and a take-up shaft 13. The rubber pressure roller 12 is located below the hot press roller 11. The gap between the hot press roller 11 and the rubber pressure roller 12 is only wide enough for flat material to pass through. A safety door is located below the rubber pressure roller 12, and the take-up shaft 13 is located below the safety door. The safety door facilitates material feeding and paper advance after opening.

[0015] A dust removal device 22 is installed on the upper end of the frame 1 near the conveyor belt 3 to remove dust from the surface of the raw materials.

[0016] The mounting bracket 14 has arc-shaped feeding ports on both sides, diagonally above the unwinding shaft 15. This makes it easier for operators to align the roll with the shaft and identify the amount of material being used when installing or changing the roll, thus improving operational efficiency.

[0017] The unwinding device 9 includes a fixed frame 14 and an unwinding shaft 15. The lower end of the fixed frame 14 has a sliding groove 17. Guide rails 16 are provided on both sides of the frame corresponding to the sliding groove 17. A movable plate 18, a spring 20, and a rubber limiting block 19 are fitted on each side of the unwinding shaft 15. The movable plate 18 is connected to the inner wall of the fixed frame 14 via a pneumatic telescopic rod 21. A spring 20 is provided between the movable plate 18 and the rubber limiting block 19. The roll material 23 is placed between the two rubber limiting blocks 19. An opening is provided above the movable plate 18 to allow the unwinding shaft 15 to move out. The sliding groove 17 is equipped with a positioning pin. Inconsistent tension stress on the roll material can cause curling at both ends, resembling a lotus leaf. Springs and rubber limit blocks can be used to place rolls 23 of different sizes and lengths and to provide cushioning. Adjusting the telescopic rod changes the position of the moving plate, moves the roll 23, and adjusts the tension. Changing the position of the unwinding device 9 changes the angle between it and the smoothing roller 10, thereby reducing the degree of deformation at both ends of the roll 23 and reducing the probability of wrinkles in subsequent operations.

[0018] The coated roll is placed on the unwinding shaft 4 to ensure a smooth and even release of the coating material, providing a stable material supply for subsequent coating operations. The coated roll is guided by guide rollers 5 into tension rollers 6. Adjusting the speed of tension rollers 6 controls the tension of the coating material during transport, preventing it from becoming too loose or too tight. It then passes through coating rollers 7, which apply a layer of adhesive to one side of the film. After passing through a heated oven 8, the adhesive is evenly distributed, reducing air bubbles. The heated oven 8 contains heating elements, and the temperature is regulated by a temperature controller. The substrate, placed on the unwinding shaft 15, passes through smoothing rollers 10 to prevent air bubbles and creases from entering the processing components. The take-up shaft 13 winds up the coated material for easy processing and storage, preventing material spillage.

[0019] In use, the film-coated roll is placed on the unwinding shaft 4. The substrate is also a roll, placed on the unwinding shaft 15. The position and tension are adjusted, and the conveyor belt 3 starts to transport the raw material. The raw material is cleaned of floating dust by the dust removal device 22, and then it is firmly bonded by the heating of the hot press roller 11 and the pressure of the rubber pressure roller 12 to achieve the purpose of film coating. Finally, the film-coated material is wound up by the take-up roller 13.

Claims

1. A laminating machine suitable for label film, comprising a frame (1), characterized in that: The frame (1) has a housing (2) at one end, with an opening on one side of the housing (2). The other end of the frame (1) has a conveyor belt (3). The conveyor belt (3) passes through the opening into the housing (2). Inside the housing (2), a film supply assembly, a material supply assembly, and a processing assembly are rotatably connected to the housing via bearings. The film supply assembly includes a film unwinding shaft (4), guide rollers (5), a tension roller (6), a coating roller (7), and a heating oven (8). The other side of the housing (2) has an unwinding shaft frame, on which the film unwinding shaft (4) is mounted. Behind the film unwinding shaft (4) is a guide roller (5), above the guide roller (5) is a tension roller (6), and in front of the tension roller (6) is a coating roller (7). A heating oven (8) is provided above the wheel (7). The feeding assembly includes an unwinding device (9) and a smoothing roller (10). The unwinding device (9) includes a fixed frame (14) and an unwinding shaft (15). The lower end of the fixed frame (14) is provided with a slide groove (17). The two sides of the frame corresponding to the slide groove (17) are provided with guide rails (16). The front end of the unwinding device is provided with a smoothing roller (10). The processing assembly includes a hot press roller (11), a rubber pressure roller (12) and a take-up shaft (13). The rubber pressure roller (12) is provided below the hot press roller (11). The gap between the hot press roller (11) and the rubber pressure roller (12) can only pass through flat material. The take-up shaft (13) is provided below the rubber pressure roller (12).

2. A laminating machine suitable for label film according to claim 1, characterized in that: The frame (1) is equipped with a dust suction and sweeping device (22) on the upper end of the side near the conveyor belt (3).

3. A laminating machine suitable for label film according to claim 1, characterized in that: The fixed frame (14) has arc-shaped feeding ports on both sides above the unwinding shaft (15).

4. A laminating machine suitable for label film according to claim 1, characterized in that: The unwinding shaft (15) is fitted with a movable plate (18), a spring (20) and a rubber limiting block (19) on each side. The movable plate (18) and the inner wall of the fixed frame (14) are connected by a pneumatic telescopic rod (21). A spring (20) is provided between the movable plate (18) and the rubber limiting block (19). The roll material (23) is placed between the two rubber limiting blocks (19). An opening is provided above the movable plate (18) to allow the unwinding shaft (15) to move out.

5. A laminating machine suitable for label films according to claim 1, characterized in that: The slide (17) is provided with a positioning pin.

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