Film pressing device for preparing reflective film

Abstract

The utility model belongs to the technical field of hot-pressing reflective film production equipment, and particularly relates to a film pressing device for preparing a reflective film. The film pressing device for preparing the reflective film comprises a rack, a supporting roller and an adjusting mechanism, the rack comprises a composite roller and a hot pressing roller, and a PET film and a microprism film can penetrate through the space between the composite roller and the hot pressing roller; the supporting roller comprises a supporting roller mounting frame capable of moving up and down, a supporting roller body capable of abutting against the hot pressing roller and a plurality of supporting wheel assemblies capable of adjusting the horizontal position of the supporting roller body. The adjusting mechanism is arranged on the rack and connected with the supporting rollers and drives the supporting rollers to move up and down. The horizontal position of the supporting roller body is adjusted by adjusting the multiple supporting wheel assemblies, so that the supporting roller body and the hot-pressing roller are in a balanced state, and when the supporting roller body abuts against the hot-pressing roller, it can be guaranteed that a gap between the hot-pressing roller and a composite roller is uniform and consistent in the hot-pressing process; and therefore, the thicknesses of the welding parts of the PET film and the microprism film passing between the hot pressing roller and the composite roller are consistent.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot-pressing reflective film production equipment, and particularly relates to a film pressing device for preparing a reflective film. Background Art

[0002] A reflective film utilizes the principle of retroreflection in optics. Its reflection units can be divided into two types: glass microbeads and microprisms. Due to its excellent retroreflection performance, the reflective film with microprism reflection units is increasingly widely used in various fields such as road traffic safety facilities, signboards, and vehicle passive safety protection devices. During the preparation of the reflective film, a hot-pressing roller (also known as a hot-pressing roll) is usually used to heat and press a PET film and a microprism film to achieve a certain hot-pressing effect.

[0003] In the prior art, the reflective film to be processed is usually placed between two rollers, one of which is a hot-pressing roll, ensuring that the film material contacts the surface of the roll. Then, the hot-pressing roll is driven to rotate relatively through a corresponding controller to achieve the hot-pressing process. However, during the hot-pressing process, it is difficult to control the pressure exerted by the hot-pressing roll on the film surface, resulting in uneven pressure on the film surface, uneven film thickness, and uneven surfaces such as ripples. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a film pressing device for preparing a reflective film that can ensure the production quality of the reflective film.

[0005] The utility model adopts the following technical scheme:

[0006] A film pressing device for preparing a reflective film, the reflective film including a PET film and a microprism film hot-pressed and compounded with the PET film, comprising a frame, a support roll, and an adjustment mechanism. The frame includes a compound roll and a hot-pressing roll that are arranged at intervals up and down on the frame, and the PET film and the microprism film can pass through between the compound roll and the hot-pressing roll; the support roll is movably arranged on the frame, including a support roll mounting frame that can move up and down relative to the hot-pressing roll below the hot-pressing roll, a support roll body that is rotatably arranged on the support roll mounting frame and is used to abut against the hot-pressing roll, and a plurality of support wheel assemblies that are detachably arranged on the support roll mounting frame and are used to adjust the horizontal position of the support roll body; the adjustment mechanism is arranged on the frame and is connected to and drives the support roll to move up and down.

[0007] Further, the plurality of support wheel assemblies are arranged at intervals along the length direction of the support roll mounting frame. The support wheel assembly includes a support rod that is movably arranged on the support roll mounting frame, a support wheel that is rotatably arranged at one end of the support rod, and an adjustment member that is arranged between the support rod and the support roll mounting frame.

[0008] Furthermore, the support roller mounting frame includes a mounting seat arranged on its top surface and a mounting hole extending downward from the top surface of the mounting seat, one end of the support rod can be embedded in the mounting hole, and the other end is provided with a connecting seat connected to the support wheel.

[0009] Furthermore, the adjusting member includes an adjusting bolt arranged in the mounting hole and capable of driving the supporting rod to move up and down, and a fixing nut matched with the adjusting bolt, and a threaded section matched with the adjusting bolt is arranged in the mounting hole.

[0010] Furthermore, a spline is formed on the inner wall of the mounting hole, and a limiting groove extending inwardly and cooperating with the spline is formed on the support rod.

[0011] Furthermore, the adjustment mechanism includes a cylinder mounting frame arranged on the frame below the support roller mounting frame and a plurality of driving cylinders arranged at intervals along the length direction of the cylinder mounting frame.

[0012] Furthermore, the oil cylinder mounting frame comprises an upper mounting plate and a lower mounting plate which are arranged opposite to each other up and down, and the driving oil cylinder is fixedly located between the upper mounting plate and the lower mounting plate, and one end of the driving oil cylinder is connected to the bottom of the supporting roller mounting frame.

[0013] Furthermore, the support roller also includes two guide rods which are relatively arranged on the bottom surface of the support roller mounting frame and extend downward, and the upper mounting plate is provided with a guide seat for the two guide rods to pass through.

[0014] It can be seen from the above description of the utility model that, compared with the prior art, the utility model has the following beneficial effects: the application defines the specific structure of the support roller by cooperating between a frame, a support roller movably arranged on the frame, and an adjustment mechanism arranged on the frame and connected to drive the support roller to move up and down, and adjusts the horizontal position of the support roller body by adjusting a plurality of support wheel assemblies respectively, so that the support roller body and the hot pressing roller are in a balanced state. When the support roller body abuts against the hot pressing roller, it can ensure that the gap between the hot pressing roller and the composite roller is uniform during the hot pressing process, thereby ensuring that the thickness of the PET film and the micro-prismatic film passing between the hot pressing roller and the composite roller is consistent at each welding point, so that the surface of the prepared reflective film is smooth, and the molding quality of the reflective film is improved; through the adjustment mechanism, the support roller body can be moved upward to tightly abut against the hot pressing roller;

[0015] By cooperating between an adjusting bolt arranged in the mounting hole and capable of driving the support rod to move up and down, and a fixing nut cooperating with the adjusting bolt, when there is an imbalance between the support roller body and the hot pressing roller, the position of the support roller body can be accurately adjusted through the adjusting bolt, and at the same time, the adjusting bolt can be fixed through the fixing nut to avoid deformation of the adjusting bolt during the hot pressing process, thereby improving the stability of the support roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic structural diagram of a film pressing device.

[0017] Figure 2 It is a partial structural exploded view of the film pressing device.

[0018] Figure 3 It is Figure 2 an enlarged schematic structural diagram of part A in

[0019] Figure 4 a schematic internal structure diagram of the mounting seat.

[0020] Figure 5 a schematic diagram of the usage state of the film pressing device.

[0021] In the figure: 1 - frame, 11 - composite roller, 12 - hot pressing roller, 2 - supporting roller, 21 - supporting roller mounting frame, 211 - mounting seat, 212 - mounting hole, 213 - threaded section, 214 - spline, 22 - supporting roller body, 23 - supporting wheel assembly, 24 - supporting rod, 241 - connecting seat, 242 - limiting groove, 25 - supporting wheel, 26 - adjusting member, 261 - adjusting bolt, 262 - fixing nut, 27 - guiding rod, 3 - adjusting mechanism, 31 - oil cylinder mounting frame, 32 - driving oil cylinder, 33 - upper mounting plate, 34 - lower mounting plate, 35 - guiding seat, 4 - control mechanism. Specific Embodiments

[0022] The following further describes the present utility model through specific embodiments.

[0023] As Figures 1 to 5 shown, this embodiment provides a film pressing device for preparing a reflective film. The reflective film includes a PET film and a microprism film thermally pressed and compounded with the PET film. The film pressing device includes a frame 1, a supporting roller 2, an adjusting mechanism 3, and a control mechanism 4.

[0024] The frame 1 includes a composite roller 11 and a hot pressing roller 12 arranged at intervals up and down on the frame 1. Between the composite roller 11 and the hot pressing roller 12, the PET film and the microprism film can pass through.

[0025] The supporting roller 2 is movably arranged on the frame 1 and includes a supporting roller mounting bracket 21 arranged below the hot pressing roller 12 and capable of moving up and down relative to the hot pressing roller 12, a supporting roller body 22 rotatably arranged on the supporting roller mounting bracket 21 and used for abutting against the hot pressing roller 12, and a plurality of supporting wheel assemblies 23 detachably arranged on the supporting roller mounting bracket 21 and used for adjusting the horizontal position of the supporting roller body 22; by adjusting the horizontal position of the supporting roller body 22 through the plurality of supporting wheel assemblies 23, the supporting roller body 22 and the hot pressing roller 12 are in a balanced state. When the supporting roller body 22 abuts against the hot pressing roller 12, it can ensure that the gap between the hot pressing roller 12 and the composite roller 11 is uniform during the hot pressing process, thereby ensuring that the thickness of each part of the PET film and the microprism film fused between the hot pressing roller 12 and the composite roller 11 is consistent, making the surface of the prepared reflective film flat and improving the forming quality of the reflective film; specifically, the plurality of supporting wheel assemblies 23 are arranged at intervals along the length direction of the supporting roller mounting bracket 21. The supporting wheel assembly 23 includes a supporting rod 24 movably arranged on the supporting roller mounting bracket 21, a supporting wheel 25 rotatably arranged at one end of the supporting rod 24, and an adjusting member 26 arranged between the supporting rod 24 and the supporting roller mounting bracket 21. Among them, the supporting wheel assembly 23 does not directly abut against the hot pressing roller 12, which can prevent the hot pressing roller 12 from deforming; further, the supporting roller mounting bracket 21 includes a mounting seat 211 arranged on its top surface and a mounting hole 212 extending downward from the top surface of the mounting seat 211. One end of the supporting rod 24 can be embedded in the mounting hole 212, and the other end is provided with a connecting seat 241 connected to the supporting wheel 25; further, the adjusting member 26 includes an adjusting bolt 261 arranged in the mounting hole 212 and capable of driving the supporting rod 24 to move up and down, and a fixing nut 262 cooperating with the adjusting bolt 261. A threaded section 213 cooperating with the adjusting bolt 261 is arranged in the mounting hole 212; when the supporting roller body 22 and the hot pressing roller 12 are unbalanced, the position of the supporting roller body 22 can be accurately adjusted through the adjusting bolt 261, and at the same time, the adjusting bolt 261 is fixed through the fixing nut 262 to prevent the adjusting bolt 261 from deforming during the hot pressing process; further, a spline 214 is formed on the inner wall of the mounting hole 212, and a limiting groove 242 extending inward and cooperating with the spline 214 is formed on the supporting rod 24.

[0026] The adjusting mechanism 3 is arranged on the frame 1 to be connected with and drive the supporting roller 2 to move up and down, and includes an oil cylinder mounting frame 31 arranged on the frame 1 below the supporting roller mounting frame 21 and a plurality of driving oil cylinders 32 arranged at intervals along the length direction of the oil cylinder mounting frame 31; by driving the supporting roller body 22 to move up and down relative to the hot pressing roller 12 through the plurality of driving oil cylinders 32, the supporting roller body 22 can be moved upward to tightly abut against the hot pressing roller 12; specifically, the oil cylinder mounting frame 31 includes an upper mounting plate 33 and a lower mounting plate 34 arranged opposite to each other up and down, and the driving oil cylinder 32 is fixedly located between the upper mounting plate 33 and the lower mounting plate 34, and one end thereof is connected with the bottom of the supporting roller mounting frame 21; further, the supporting roller further includes two guide rods 27 oppositely arranged and extending downward from the bottom surface of the supporting roller mounting frame 21, wherein, a guide seat 35 through which the two guide rods 27 can pass is arranged on the upper mounting plate 33.

[0027] The control mechanism 4 is respectively connected with and controls the work of the hot pressing roller 12, the compounding roller 11 and the adjusting mechanism 3, and includes a control box, a rotating motor arranged in the control box to drive the hot pressing roller to rotate, and a controller connected with the rotating motor, and the controller is connected with and controls the heating of the hot pressing roller.

[0028] In summary, by means of the above technical solution of the present invention, by defining the specific structure of the supporting roller 2, the gap between the hot pressing roller 12 and the compounding roller 11 can be ensured to be uniform during the hot pressing process, so as to ensure that the thickness of the welded parts of the PET film and the micro prism film passing between the hot pressing roller 12 and the compounding roller 11 is consistent everywhere, making the surface of the prepared reflective film flat and improving the forming quality of the reflective film; in addition, through the adjusting mechanism 3 arranged on the frame 1 to be connected with and drive the supporting roller 2 to move up and down, the supporting roller body 22 can be moved upward to tightly abut against the hot pressing roller 12; in addition, through the cooperation between the adjusting bolt 261 that can drive the supporting rod 24 to move up and down in the mounting hole 212 and the fixing nut 262 matched with the adjusting bolt 261, the position of the supporting roller body 22 can be accurately adjusted, and at the same time, the deformation of the adjusting bolt 261 during the hot pressing process can be avoided, improving the stability of the supporting roller 2.

[0029] The above is only a preferred embodiment of the present invention, and thus cannot limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of the present invention application and the content of the specification should still fall within the scope covered by the present invention application.

Claims

1. A laminating device for preparing a reflective film, the reflective film comprising a PET film and a micro-prismatic film hot-pressed and composited with the PET film, characterized in that: It includes a frame, a support roller and an adjustment mechanism, wherein the frame includes a composite roller and a hot pressing roller arranged on the frame at an upper and lower interval, and a space between the composite roller and the hot pressing roller can allow a PET film and a microprismatic film to pass through; the support roller is movably arranged on the frame, including a support roller mounting frame arranged below the hot pressing roller and movable up and down relative to the hot pressing roller, a support roller body rotatably arranged on the support roller mounting frame for abutting against the hot pressing roller, and a plurality of support wheel assemblies detachably arranged on the support roller mounting frame for adjusting the horizontal position of the support roller body; the adjustment mechanism is arranged on the frame to connect and drive the support roller to move up and down.

2. A laminating device for preparing a reflective film according to claim 1, characterized in that: A plurality of the support wheel assemblies are arranged at intervals along the length direction of the support roller mounting frame, and the support wheel assembly includes a support rod movably arranged on the support roller mounting frame, a support wheel rotatably arranged at one end of the support rod, and an adjusting member arranged between the support rod and the support roller mounting frame.

3. A laminating device for preparing a reflective film according to claim 2, characterized in that: The support roller mounting frame includes a mounting seat arranged on its top surface and a mounting hole extending downward from the top surface of the mounting seat. One end of the support rod can be embedded in the mounting hole, and the other end is provided with a connecting seat connected to the support wheel.

4. A laminating device for preparing a reflective film according to claim 3, characterized in that: The adjusting member comprises an adjusting bolt which is arranged in the mounting hole and can drive the supporting rod to move up and down, and a fixing nut which cooperates with the adjusting bolt. A threaded section which cooperates with the adjusting bolt is arranged in the mounting hole.

5. The laminating device for preparing a reflective film according to claim 3, characterized in that: A spline is formed on the inner wall of the mounting hole, and a limiting groove extending inwardly and cooperating with the spline is formed on the support rod.

6. A laminating device for preparing a reflective film according to claim 1, characterized in that: The adjustment mechanism comprises an oil cylinder mounting frame arranged on the frame below the supporting roller mounting frame and a plurality of driving oil cylinders arranged at intervals along the length direction of the oil cylinder mounting frame.

7. A laminating device for preparing a reflective film according to claim 6, characterized in that: The oil cylinder mounting frame comprises an upper mounting plate and a lower mounting plate which are arranged opposite to each other up and down. The driving oil cylinder is fixed between the upper mounting plate and the lower mounting plate, and one end of the driving oil cylinder is connected to the bottom of the supporting roller mounting frame.

8. A laminating device for preparing a reflective film according to claim 7, characterized in that: The support roller also includes two guide rods which are relatively arranged on the bottom surface of the support roller mounting frame and extend downward. The upper mounting plate is provided with a guide seat through which the two guide rods can pass.

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