Film wrinkle-removing and flattening traction device

Abstract

The utility model relates to a thin film wrinkle removing, flattening and traction device which comprises a front stretching roller and a rear stretching roller which are arranged on the front side and the rear side of a forming roller set. Each of the front expander roller and the rear expander roller comprises a rotating shaft and shields sleeved at two ends of the rotating shaft, shaft heads at two ends of the rotating shaft penetrate out of the shields, and a plurality of rubber strips are uniformly distributed between the two shields in the circumferential direction by taking the rotating shaft as the axis; a static electricity removing mechanism is arranged above the front stretching roller and comprises a static electricity eliminator and height adjusting assemblies arranged at the two ends of the static electricity eliminator, and the static electricity eliminator is close to or away from the front stretching roller through the height adjusting assemblies. The traction device provided by the utility model can greatly reduce the wrinkles of the automobile film and ensure the product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive film production equipment, specifically to a film wrinkle removal and flattening traction device. Background Technology

[0002] Automotive window film is a high-performance, new type of environmentally friendly film widely used in the automotive detailing and maintenance industry. Automotive window film is primarily made of TPU film, produced through special processes such as calendering, casting, blown film production, and coating on TPU granules. Currently, after extruding the TPU base film, a protective film needs to be laminated onto it using a film laminating machine. The protective film for automotive window film is mainly PET film. Before entering the forming roller assembly, PET film often has wrinkles and cannot enter the assembly smoothly, thus affecting the quality of the automotive window film. Furthermore, after laminating the TPU base film, due to the high extrusion temperature, wrinkles are also easily generated during the lamination process, similarly affecting the quality of the automotive window film.

[0003] Therefore, how to design a device that can be used for online thin film production and can remove wrinkles from thin films has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a film wrinkle removal and flattening traction device that is applicable to online film production and can remove wrinkles from films.

[0005] The technical solution adopted by this utility model is: a film wrinkle removal and flattening traction device, including a front stretching roller and a rear stretching roller arranged on the front and rear sides of the forming roller group; the front stretching roller and the rear stretching roller include a rotating shaft and a protective cover sleeved on both ends of the rotating shaft, the shaft ends of the rotating shaft protrude out of the protective cover, and a number of rubber strips are evenly distributed circumferentially between the two protective covers with the rotating shaft as the axis; an antistatic mechanism is arranged above the front stretching roller, the antistatic mechanism includes an antistatic eliminator and a height adjustment component arranged at both ends of the antistatic eliminator, the antistatic eliminator is brought closer to or away from the front stretching roller through the height adjustment component.

[0006] Preferably, the rotating shaft is an arc-shaped roller.

[0007] Preferably, the adhesive strip is a silicone adhesive strip.

[0008] Preferably, the height adjustment assembly includes a bracket mounted on the frame and a connecting rod perpendicular to the bracket, one end of the connecting rod being connected to an electrostatic eliminator and the other end being movably connected to the bracket.

[0009] Preferably, the connecting rod has a connecting portion extending downward at the end connected to the bracket, and the bracket is provided with a strip-shaped hole, and the connecting portion of the connecting rod is detachably installed in the strip-shaped hole by bolts.

[0010] Preferably, the frame is provided with a front mounting bracket for mounting the front stretching roller, and the shaft ends at both ends of the front stretching roller are movably mounted on the front mounting bracket.

[0011] Preferably, the frame is provided with a rear mounting bracket for mounting the rear stretching roller above the forming roller assembly, and the shaft ends of the rear stretching roller are movably mounted on the rear mounting bracket.

[0012] Preferably, a first conveying roller is provided between the front stretching roller and the forming roller group, and the first conveying roller is movably mounted on the front mounting frame.

[0013] Preferably, a second conveying roller is provided behind the rear stretching roller, and the second conveying roller is movably mounted on the rear mounting frame.

[0014] Preferably, the length of the static eliminator is adapted to the length of the front stretching roller.

[0015] This utility model has the following advantages compared with the prior art:

[0016] 1. The traction device of this utility model has a front stretching roller and a rear stretching roller respectively set on the front and rear sides of the forming roller group. The front stretching roller can smooth out the wrinkles of the PET film; the rear stretching roller can smooth out the wrinkles generated after the TPU base film and PET film are laminated to form a composite film. The position design of the front and rear stretching rollers can significantly reduce the wrinkles of automotive window film and ensure product quality. In addition, the rotating shaft of the front and rear stretching rollers is an arc-shaped roller, and several adhesive strips are evenly distributed around the circumference of the rotating shaft. By tightening and loosening the adhesive strips during the rotation of the rotating shaft, the wrinkles of the PET protective film and the composite film are effectively smoothed out.

[0017] 2. The traction device of this utility model has an antistatic mechanism above the front stretching roller. The antistatic mechanism releases ions onto the surface of the PET film through an antistatic eliminator, thereby eliminating static electricity on the PET film and preventing wrinkles caused by localized adhesion due to static electricity. Furthermore, the antistatic mechanism also prevents the PET film from being damaged by a strong electric field generated by static electricity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the static elimination mechanism installed above the front stretching roller.

[0020] Figure 3This is a schematic diagram of the front stretching roller and the rear stretching roller.

[0021] Figure 4 This is a schematic diagram of the rotating shaft.

[0022] Figure 5 This is a schematic diagram showing the positions of the front stretching roller, the rear stretching roller, and the forming roller assembly.

[0023] The labels in the diagram indicate:

[0024] 1-Forming roller assembly, 2-Front stretching roller, 3-Rear stretching roller, 4-First conveyor roller, 5-Second conveyor roller, 6-Eliminating static electricity mechanism, 61-Static eliminator, 62-Height adjustment assembly, 621-Bracket, 622-Connecting rod, 6221-Connecting part, 623-Bolt, 7-Frame, 71-Front mounting bracket, 72-Rear mounting bracket, 8-PET film, 9-Composite film; 01-Rotating shaft, 02-Guard cover, 03-Shaft head, 04-Glue strip. Detailed Implementation

[0025] To enhance understanding of this utility model, it will be further described in detail below with reference to embodiments and accompanying drawings. This utility model can be implemented in the following ways:

[0026] Reference Figure 1-5 A film wrinkle-removing and flattening traction device includes a front stretching roller 2 and a rear stretching roller 3 disposed on the front and rear sides of a forming roller group 1. The front stretching roller 2 and the rear stretching roller 3 each include a rotating shaft 01 and protective covers 02 sleeved at both ends of the rotating shaft 01. The rotating shaft 01 is an arc-shaped roller. The shaft ends 03 at both ends of the rotating shaft 01 extend beyond the protective covers 02. A plurality of adhesive strips 04, made of silicone, are evenly distributed circumferentially between the two protective covers 02 with the rotating shaft 01 as the axis. Gaps exist between adjacent adhesive strips 04, allowing the adhesive strips 04 to deform during rotation. The rotating shaft 01 of the front stretching roller 2 and the rear stretching roller 3 is an arc-shaped roller, and its structure is as follows: Figure 4 As shown, during the rotation of the rotating shaft 01, the lowest point of its arc will touch the adhesive strip 04. The adhesive strip 04 protrudes outward onto the film, causing the film to be tightened and loosened during the traction process, thereby effectively smoothing out the wrinkles of the PET protective film and composite film.

[0027] To mount the front stretching roller 2 and the rear stretching roller 3 on the front and rear sides of the forming roller group 1 respectively, the frame 7 is provided with a front mounting bracket 71 for mounting the front stretching roller 2, and the shaft ends 03 at both ends of the front stretching roller 2 are movably mounted on the front mounting bracket 71. A first conveyor roller 4 is provided between the front stretching roller 2 and the forming roller group 1, and the first conveyor roller 4 is movably mounted on the front mounting bracket 71. The first conveyor roller 4 pulls the PET film 8 that has passed through the front stretching roller 2 to the forming roller group 1. The frame 7 is provided above and behind the forming roller group 1 with a rear mounting bracket 72 for mounting the rear stretching roller 3, and the shaft ends 03 at both ends of the rear stretching roller 3 are movably mounted on the rear mounting bracket 72. A second conveyor roller 5 is provided behind the rear stretching roller 3, and the second conveyor roller 5 is movably mounted on the rear mounting bracket 72. The second conveyor roller 5 pulls the composite film 9 to the next station.

[0028] To improve the wrinkle removal effect, an antistatic mechanism 6 is provided above the front stretching roller 2. The antistatic mechanism 6 includes an antistatic eliminator 61 and height adjustment components 62 located at both ends of the antistatic eliminator 61. The length of the antistatic eliminator 61 is adapted to the front stretching roller 2, and the antistatic eliminator 61 is moved closer to or further away from the front stretching roller 2 via the height adjustment components 62. The antistatic eliminator 61 can release ions onto the surface of the PET film 8, thereby eliminating static electricity on the PET film 8 and preventing the PET film 8 from locally sticking together and wrinkling due to static electricity. Furthermore, the antistatic mechanism 6 can also prevent the strong electric field generated by static electricity from damaging the PET film 8.

[0029] To adjust the distance between the static eliminator 61 and the front stretching roller 2, the height adjustment assembly 62 includes a bracket 621 mounted on the frame 7 and a connecting rod 622 perpendicular to the bracket 621. One end of the connecting rod 622 is connected to the static eliminator 61, and the other end is movably connected to the bracket 621. Each end of the static eliminator 61 is connected to a connecting rod 622. The connecting rod 622 has a connecting portion 6221 extending downwards at the end connected to the bracket 621. The bracket 621 has a slotted hole, and the connecting portion 6221 of the connecting rod 622 is detachably installed in the slotted hole using bolts 623. During installation, the bolt 623 is passed through the slotted hole of the bracket 621 and secured with a nut to install the static eliminator 61 above the front stretching roller 2. When it is necessary to adjust the distance between the static eliminator 61 and the front stretching roller 2, simply loosen the bolt 623 and adjust its position within the slotted hole to control the raising and lowering of the static eliminator 61; the operation is simple and quick.

[0030] Reference Figure 1In this embodiment, the film path is as follows: the PET film 8 passes through the front stretching roller 2 and the first conveying roller 4 in sequence to enter the forming roller group 1, and then is laminated with the TPU base film to form a composite film 9, which then exits through the rear stretching roller 3 and the second conveying roller 5.

[0031] Finally, it should be noted that 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 thin film wrinkle flattening stretching device characterized by, The utility model provides a front and rear stretch roller device for the forming roller group, which comprises a front stretch roller (2) and a rear stretch roller (3) arranged on the front and rear sides of the forming roller group (1); the front stretch roller (2) and the rear stretch roller (3) comprise rotating shafts (01) and shrouds (02) sleeved on both ends of the rotating shafts (01), the shaft heads (03) of both ends of the rotating shafts (01) pass out of the shrouds (02), and a plurality of rubber strips (04) are evenly distributed in the circumferences of the rotating shafts (01) between the two shrouds (02); an electrostatic elimination mechanism (6) is arranged above the front stretch roller (2), the electrostatic elimination mechanism (6) comprises electrostatic eliminators (61) and height adjustment assemblies (62) arranged at both ends of the electrostatic eliminators (61), and the electrostatic eliminators (61) are close to or away from the front stretch roller (2) through the height adjustment assemblies (62).

2. A film wrinkle removing and flattening pulling device according to claim 1, wherein The rotating shaft (01) is an arc-shaped roller.

3. A film wrinkle removing and flattening traction device according to claim 2, wherein The rubber strip (04) is a silica gel rubber strip.

4. A film wrinkle removal and flattening device according to any one of claims 1 to 3, wherein The height adjustment assembly (62) comprises a bracket (621) mounted on a rack (7) and a connecting rod (622) perpendicular to the bracket (621), one end of the connecting rod (622) is connected with the electrostatic eliminator (61), and the other end is movably connected with the bracket (621).

5. A film wrinkle removing and flattening traction device according to claim 4, wherein The connecting rod (622) extends downward at the end connected with the bracket (621) and has a connecting portion (6221), the bracket (621) is provided with a strip-shaped hole, and the connecting portion (6221) of the connecting rod (622) is detachably mounted in the strip-shaped hole through bolts (623).

6. A film wrinkle removing and flattening pulling device according to claim 4, wherein The rack (7) is provided with a front mounting rack (71) for mounting the front stretch roller (2), and the shaft heads (03) at both ends of the front stretch roller (2) are movably mounted on the front mounting rack (71).

7. A film wrinkle removing and flattening traction device according to claim 6, wherein The rack (7) is provided with a rear mounting rack (72) for mounting the rear stretch roller (3) above the rear side of the forming roller group (1), and the shaft heads (03) at both ends of the rear stretch roller (3) are movably mounted on the rear mounting rack (72).

8. A film wrinkle removing and flattening pulling device according to claim 6, wherein The front stretch roller (2) and the forming roller group (1) are provided with a first conveying roller (4), and the first conveying roller (4) is movably mounted on the front mounting rack (71).

9. A film wrinkle removing and flattening pulling device according to claim 7, wherein The rear side of the rear stretch roller (3) is provided with a second conveying roller (5), and the second conveying roller (5) is movably mounted on the rear mounting rack (72).

10. A film wrinkle removing, flattening and stretching device according to claim 1 or 2 or 3 or 5 or 6 or 7 or 8 or 9, characterized in that, The length of the electrostatic eliminator (61) is adapted to the front stretch roller (2).

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