Unreeling device of film laminating machine

Abstract

The utility model discloses an unreeling device of a film laminating machine, which comprises two bottom plates, vertical plates are arranged on the sides of the two bottom plates close to each other, a transmission component is arranged at the upper end of one side of one vertical plate close to the bottom plate, an unreeling roll shaft is arranged at the upper end between the two vertical plates, a guide roll shaft is arranged below the unreeling roll shaft, and the guide roll shaft is arranged below the guide roll shaft. A fixed plate is arranged on the two vertical plates and located between the unwinding roll shaft and the guide roll shaft, a hydraulic cylinder is arranged in the middle of the side, away from the vertical plates, of the fixed plate, the stroke end of the hydraulic cylinder penetrates through the fixed plate and is fixedly connected with a movable plate, and a plurality of springs distributed at equal intervals are arranged on the side, away from the fixed plate, of the movable plate; the side, away from the movable plate, of the spring is fixedly connected with the mounting frame, and a tensioning roller shaft is arranged on the side, away from the spring, of the mounting frame. The unwinding device is simple in structure and convenient to operate, the tension of the unwinding device can be adjusted according to different films, and the universality and the working efficiency of the film laminating machine are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of laminating machine technology, and in particular to an unwinding device for a laminating machine. Background Technology

[0002] Laminating machines can be broadly classified into two categories: instant-coating laminating machines and pre-coating laminating machines. They are specialized equipment used for laminating paper, boards, and other materials. The laminating machine combines these materials under pressure from rubber rollers and heated rollers to form a paper-plastic composite product. Currently, laminating machines require an unwinding device before laminating boards. Different films require different tensions when unwinding, and the tension of existing unwinding devices is not easily adjustable. This necessitates changing the unwinding device when laminating different films, increasing the workload for operators and reducing the machine's production efficiency. Therefore, we propose an improved unwinding device for laminating machines. Utility Model Content

[0003] To address the aforementioned problems, this invention provides an unwinding device for a laminating machine. This invention solves the problem that when unwinding different films, the required tension varies, and the tension of existing laminating machine unwinding devices is not easily adjustable. This necessitates replacing the unwinding device when laminating different films, increasing the workload of workers and reducing the production efficiency of the laminating machine.

[0004] This utility model discloses an unwinding device for a laminating machine, comprising a base plate, wherein two base plates are provided, and upright plates are provided on one side of the two base plates close to each other. A transmission assembly is provided on the upper end of one upright plate near the base plate. An unwinding roller shaft is provided on the upper end between the two upright plates, and a guide roller shaft is provided below the unwinding roller shaft. A fixed plate is provided between the two upright plates and the guide roller shaft. A hydraulic cylinder is provided in the middle of the side of the fixed plate away from the upright plate. The stroke end of the hydraulic cylinder passes through the fixed plate and is fixedly connected to a movable plate. A plurality of equidistant springs are provided on the side of the movable plate away from the fixed plate. The side of the springs away from the movable plate is fixedly connected to a mounting frame. A tension roller shaft is provided on the side of the mounting frame away from the springs.

[0005] In the above scheme, a telescopic rod is provided on the inner side of the spring.

[0006] In the above scheme, the transmission component includes a housing, a motor is provided on the side of the housing away from the upright plate, the rotating shaft of the motor passes through the housing and is fixedly connected to the first gear, one end of the unwinding roller shaft passes through the upright plate and extends into the housing, and a second gear that meshes with the first gear is provided at one end of the unwinding roller shaft located inside the housing.

[0007] In the above scheme, the diameter of the second gear is larger than the diameter of the first gear.

[0008] In the above scheme, guide rods are inserted into both sides of the fixed plate of the hydraulic cylinder, and the guide rods are fixedly connected to the movable plate.

[0009] In the above scheme, the upright plate is provided with reinforcing plates at both ends on the side near the bottom plate.

[0010] In the above scheme, the base plate has multiple mounting holes arranged at equal intervals.

[0011] The advantages and beneficial effects of this utility model are as follows: This utility model provides an unwinding device for a laminating machine. A hydraulic cylinder can push a movable plate to move horizontally. Through the transmission of the movable plate and spring, the mounting frame and tension roller shaft also move accordingly. By adjusting the position of the tension roller shaft, the tension of the unwinding device can be adjusted during film unwinding, thus making the unwinding device suitable for unwinding different films. Under the drive of the first gear, the unwinding roller shaft can perform unwinding operations. This unwinding device has a simple structure and is easy to operate. The unwinding device can adjust the tension according to different films, effectively improving the versatility and working efficiency of the laminating machine. Attached Figure Description

[0012] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of part A of the present invention;

[0015] Figure 3 This is a cross-sectional view of the present invention.

[0016] In the diagram: 1. Base plate; 2. Vertical plate; 3. Transmission assembly; 31. Housing.

[0017] 32. Motor; 33. First gear; 34. Second gear; 4. Unwinding roller shaft

[0018] 5. Guide roller shaft; 6. Fixed plate; 7. Hydraulic cylinder; 8. Movable plate

[0019] 9. Telescopic rod; 10. Mounting frame; 11. Tensioning roller shaft; 12. Spring.

[0020] 13. Guide rod; 14. Reinforcing plate; 15. Mounting hole. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0022] like Figure 1-3 As shown, this utility model is an unwinding device for a laminating machine, including a base plate 1. Two base plates 1 are provided, with a vertical plate 2 positioned close to each other on one side. A transmission assembly 3 is located at the upper end of one vertical plate 2 near the base plate 1. An unwinding roller shaft 4 is located at the upper end between the two vertical plates 2. A guide roller shaft 5 is located below the unwinding roller shaft 4. Both ends of the unwinding roller shaft 4 and the guide roller shaft 5 are movably connected to the vertical plate 2. A fixed plate 6 is located between the two vertical plates 2 and the unwinding roller shaft 4 and the guide roller shaft 5. A hydraulic cylinder 7 is located in the middle of the fixed plate 6 on the side away from the vertical plate 2. The stroke end of the hydraulic cylinder 7 passes through the fixed plate 6 and is fixedly connected to a movable plate 8. The movable plate 8 is located at the... Multiple springs 12 are arranged at equal intervals on one side away from the fixed plate 6. The side of the springs 12 away from the movable plate 8 is fixedly connected to the mounting frame 10. The side of the mounting frame 10 away from the springs 12 is provided with a tension roller shaft 11. When the hydraulic cylinder 7 is working, the hydraulic cylinder 7 can push the movable plate 8 to move horizontally. Through the transmission of the movable plate 8 and the springs 12, the mounting frame 10 and the tension roller shaft 11 also move accordingly. By adjusting the position of the tension roller shaft 11, the tension of the unwinding device can be adjusted when unwinding the film. At the same time, the springs 12 can buffer the thrust on the film, avoiding the phenomenon of film damage caused by excessive thrust of the hydraulic cylinder 7.

[0023] The spring 12 has a telescopic rod 9 on its inner side. The two ends of the telescopic rod 9 are fixedly connected to the movable plate 8 and the mounting frame 10, respectively. The setting of the telescopic rod 9 effectively increases the connection stability between the movable plate 8 and the mounting frame 10.

[0024] The transmission assembly 3 includes a housing 31. A motor 32 is provided on the side of the housing 31 away from the upright plate 2. The rotating shaft of the motor 32 passes through the housing 31 and is fixedly connected to the first gear 33. One end of the unwinding roller shaft 4 passes through the upright plate 2 and extends into the housing 31. The unwinding roller shaft 4 is provided with a second gear 34 that meshes with the first gear 33 at one end inside the housing 31. When the motor 32 is working, the motor 32 drives the first gear 33 to rotate. The second gear 34 that meshes with the first gear 33 starts to rotate under the drive of the first gear 33. Under the drive of the first gear 33, the unwinding roller shaft 4 can perform unwinding work.

[0025] The diameter of the second gear 34 is larger than the diameter of the first gear 33, making the transmission assembly 3 an overall speed reduction structure.

[0026] Guide rods 13 are inserted into both sides of the fixed plate 6 located on the hydraulic cylinder 7. The guide rods 13 are fixedly connected to the movable plate 8 and movably connected to the fixed plate 6. Through the mutual cooperation between the guide rods 13 and the fixed plate 6, the movement stability of the movable plate 8 is effectively improved.

[0027] The upright plate 2 is provided with reinforcing plates 14 at both ends on the side near the bottom plate 1. The reinforcing plates 14 are movably connected to the bottom plate 1. The setting of the reinforcing plates 14 effectively improves the overall structural stability of the unwinding device.

[0028] The base plate 1 has multiple equally spaced mounting holes 15, through which the unwinding device can be fixedly installed.

[0029] Specifically, in this utility model, the hydraulic cylinder 7 can push the movable plate 8 to move horizontally. Through the transmission of the movable plate 8 and the spring 12, the mounting frame 10 and the tension roller shaft 11 also move accordingly. By adjusting the position of the tension roller shaft 11, the tension of the unwinding device can be adjusted when unwinding the film, so that the unwinding device can be used for unwinding different films. At the same time, the spring 12 can buffer the thrust on the film, avoiding the phenomenon of film damage caused by excessive thrust of the hydraulic cylinder 7. When the motor 32 is working, the motor 32 drives the first gear 33 to rotate. The second gear 34, which meshes with the first gear 33, starts to rotate under the drive of the first gear 33. Under the drive of the first gear 33, the unwinding roller shaft 4 can perform unwinding work.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film unwinding device of a film laminating machine comprising a base plate (1), characterized in that, Two bottom plates (1) are arranged, and the two bottom plates (1) are provided with vertical plates (2) on the side close to each other, one vertical plate (2) is provided with a transmission assembly (3) on the side close to the upper end of the bottom plate (1), a pay-off roller shaft (4) is arranged between the two vertical plates (2) on the upper end, a guide roller shaft (5) is arranged below the pay-off roller shaft (4), a fixed plate (6) is arranged between the two vertical plates (2) between the pay-off roller shaft (4) and the guide roller shaft (5), a hydraulic cylinder (7) is arranged on the side away from the middle of the fixed plate (6) of the vertical plate (2), the stroke end of the hydraulic cylinder (7) penetrates through the fixed plate (6) and is fixedly connected with a movable plate (8), a plurality of springs (12) are arranged on the side away from the fixed plate (6) of the movable plate (8) at equal intervals, the side away from the movable plate (8) of the spring (12) is fixedly connected with a mounting frame (10), and the side away from the spring (12) of the mounting frame (10) is provided with a tensioning roller shaft (11).

2. The film unwinding device of claim 1, wherein The inside of the spring (12) is provided with a telescopic rod (9).

3. The film unwinding device of claim 1, wherein The transmission assembly (3) comprises a box body (31), the side away from the vertical plate (2) of the box body (31) is provided with a motor (32), the rotating shaft of the motor (32) penetrates through the box body (31) and is fixedly connected with a first gear (33), one end of the pay-off roller shaft (4) penetrates through the vertical plate (2) and extends into the box body (31), and the end of the pay-off roller shaft (4) in the box body (31) is provided with a second gear (34) engaged with the first gear (33).

4. The film unwinding device of claim 3, wherein The diameter of the second gear (34) is greater than that of the first gear (33).

5. The film unwinding device of claim 1, wherein The fixed plate (6) is provided with guide rods (13) on both sides of the hydraulic cylinder (7), and the guide rods (13) are fixedly connected with the movable plate (8).

6. The film unwinding device of claim 1, wherein The vertical plate (2) is provided with reinforcing plates (14) on the two ends of the side close to the bottom plate (1).

7. The film unwinding device of claim 1, wherein A plurality of mounting holes (15) are arranged on the bottom plate (1) at equal intervals.

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