Preheating equipment for CPP film processing and production

Abstract

The utility model discloses preheating equipment for CPP (casting polypropylene) film processing and production, which comprises a supporting bottom plate, the surface of the supporting bottom plate is fixedly connected with a left supporting plate, a preheating box and a right supporting plate respectively, the surface of the left supporting plate is rotatably connected with a winding roller through a mounting seat, and the left side of the preheating box is fixedly connected with a wrinkle removing mechanism. A film flattening mechanism is arranged between the wrinkle removing mechanism and the winding roller, the wrinkle removing mechanism comprises a horizontal supporting plate, a plurality of driving wheels and a plurality of power motors, and the driving wheels are rotationally connected to the surface of the horizontal supporting plate and symmetrically distributed on the upper surface of the horizontal supporting plate in a stepped mode. The wrinkle removing mechanism is arranged, a plurality of power motors work to drive a plurality of driving wheels to rotate, wrinkles in the middle of a thin film can be driven to the two sides through rotation of the driving wheels, and therefore the wrinkles can be effectively removed, the thin film can be flattened in cooperation with the thin film flattening mechanism, and the situation that the thin film deforms and is difficult to roll is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of thin film processing technology, specifically a preheating device for CPP thin film processing and production. Background Technology

[0002] CPP film, or cast polypropylene film, is a type of plastic film produced through a casting extrusion process. Molten polypropylene resin is cast through a T-die onto a smooth cooling roller, where it is rapidly cooled and molded.

[0003] A search revealed CN218402993U, which discloses a preheating device for CPP film processing. The device includes a table with a preheating box mounted at the top center. A hot air box is mounted on the left side wall of the preheating box. A fixing plate is mounted on the right rear end of the preheating box, and a mounting base is mounted on the left side wall of the fixing plate. A heating roller is mounted on the mounting base and rotatably connected to the mounting base. The CPP film is wound onto the heating roller, which heats the film, ensuring thorough preheating and achieving optimal preheating. The front end of the CPP film enters an arc-shaped plate, where a pressure roller rotates to flatten the film, preventing wrinkles. The front end of the film is then wound onto a take-up roller. A drive motor is activated, and the drive motor, via a coupling, drives the take-up roller to rotate, winding the CPP film and preventing deformation, thus avoiding winding hassles and providing convenience.

[0004] However, existing technology uses a pressure roller to flatten the CPP film. But if the film is severely wrinkled, directly flattening the severely wrinkled film with the pressure roller will only aggravate the wrinkles, thus making the film deformed and difficult to roll up. Therefore, this technology needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a preheating device for CPP film processing and production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a preheating device for CPP film processing and production, comprising a supporting base plate, a left support plate, a preheating box and a right support plate fixedly connected to the surface of the supporting base plate respectively, a release roller rotatably connected to the surface of the right support plate via a mounting seat, a take-up roller rotatably connected to the surface of the left support plate via a mounting seat, a wrinkle removal mechanism fixedly connected to the left side of the preheating box, and a film flattening mechanism provided between the wrinkle removal mechanism and the take-up roller;

[0007] The wrinkle removal mechanism includes a horizontal support plate, multiple driving wheels, and multiple power motors. The horizontal support plate is fixedly connected to the left side of the preheating box. The multiple driving wheels are rotatably connected to the surface of the horizontal support plate and are symmetrically distributed in a stepped manner on the upper surface of the horizontal support plate. The power motors are fixedly connected to the ends of the horizontal support plate and are connected to the driving wheels via a transmission.

[0008] Preferably, the power motors on both sides of the central axis of the horizontal support plate rotate in opposite directions, with the power motor near the front end of the horizontal support plate rotating clockwise and the power motor near the rear end of the horizontal support plate rotating counterclockwise.

[0009] Preferably, the film flattening mechanism includes two flattening rollers, both of which are rotatably connected to the surface of the left support plate, and both of the outer surfaces of the flattening rollers are provided with rubber sleeves.

[0010] Preferably, the surface of the preheating box is provided with an installation groove, the inner wall of the installation groove is provided with a limiting groove, the inner damping sliding connection of the limiting groove is provided with a U-shaped cover plate, and the left and right sides of the U-shaped cover plate are provided with strip holes for the film to pass through.

[0011] Preferably, the surface of the right support plate is rotatably connected to three guide rollers and two heating plates, with the two heating plates located on both sides of the film and leaving a gap between them.

[0012] Preferably, the heating plate is a carbon fiber heating plate.

[0013] Preferably, the rear surface of the preheating box is provided with multiple hot air pipes, and the hot air pipes are fixedly connected to the preheating box. The ends of the hot air pipes are all fixedly connected to a hot air box, and the lower end of the hot air box is fixedly connected to a hot air blower.

[0014] Beneficial effects

[0015] This utility model provides a preheating device for CPP film processing and production, which has the following beneficial effects:

[0016] 1. This preheating equipment for CPP film processing and production, by setting up a wrinkle removal mechanism, uses multiple power motors to drive multiple driving wheels to rotate. The rotation of the driving wheels can drive the wrinkles in the middle of the film to both sides, thereby effectively removing wrinkles. In conjunction with the film flattening mechanism, the film can be flattened, effectively avoiding the difficulty of film deformation and winding.

[0017] 2. This preheating equipment for CPP film processing and production uses carbon fiber heating plates to initially heat the film. Hot air is then introduced into the hot air chamber using a hot air blower and further transported into the preheating chamber through multiple hot air pipes, allowing for secondary heating of the film. This ensures uniform heating of the film. Furthermore, the high heat conversion efficiency of the carbon fiber heating plates improves energy utilization. The carbon fiber heating plates also generate far-infrared radiation, enabling non-contact heating of the film, which is less likely to damage the film and provides excellent heating results, thus enhancing practicality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a preheating device for CPP film processing and production proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the front section of a preheating device for CPP film processing and production proposed in this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the preheating box and wrinkle removal mechanism of a preheating equipment for CPP film processing and production proposed in this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of a U-shaped cover plate for a preheating device used in CPP film processing and production, as proposed in this utility model.

[0022] In the diagram: 1. Support base plate; 2. Left support plate; 3. Preheating box; 4. Right support plate; 5. Release roller; 6. Rewind roller; 7. Wrinkle removal mechanism; 8. Film flattening mechanism; 9. Horizontal support plate; 10. Drive wheel; 11. Power motor; 12. Flattening roller; 13. Mounting slot; 14. Limiting slide groove; 15. U-shaped cover plate; 16. Strip hole; 17. Guide roller; 18. Heating plate; 19. Hot air pipe; 20. Hot air box; 21. Hot air blower. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4This utility model provides a technical solution: a preheating device for CPP film processing and production, including a supporting base plate 1. A left support plate 2, a preheating box 3, and a right support plate 4 are fixedly connected to the surface of the supporting base plate 1. A release roller 5 is rotatably connected to the surface of the right support plate 4 via a mounting base. A take-up roller 6 is rotatably connected to the surface of the left support plate 2 via a mounting base. A wrinkle removal mechanism 7 is fixedly connected to the left side of the preheating box 3. A film flattening mechanism 8 is provided between the wrinkle removal mechanism 7 and the take-up roller 6. The wrinkle removal mechanism 7 includes a horizontal support plate 9, multiple driving wheels 10, and multiple power motors 11. The horizontal support plate 9 is fixedly connected to the left side of the preheating box 3. The multiple driving wheels 10 are all rotatably connected to the surface of the horizontal support plate 9, and the multiple driving wheels 10 are arranged in a stepped manner. The trapezoidal symmetrical distribution on the upper surface of the horizontal support plate 9 is provided. The power motor 11 is fixedly connected to the end of the horizontal support plate 9 and is connected to the drive wheel 10. The power motors 11 on both sides of the central axis of the horizontal support plate 9 rotate in opposite directions. The power motor 11 near the front end of the horizontal support plate 9 rotates clockwise and the power motor 11 near the rear end of the horizontal support plate 9 rotates counterclockwise. By setting the wrinkle removal mechanism 7, the operation of multiple power motors 11 can drive multiple drive wheels 10 to rotate. The rotation of the drive wheels 10 can drive the wrinkles in the middle of the film to both sides, thereby effectively removing the wrinkles. In conjunction with the film flattening mechanism 8, the film can be flattened, effectively avoiding the difficulty of film deformation and winding.

[0025] The film flattening mechanism 8 includes two flattening rollers 12, both of which are rotatably connected to the surface of the left support plate 2. The outer surfaces of the two flattening rollers 12 are provided with rubber sleeves. By rotating the flattening rollers 12, the rubber sleeves can be rotated. The CPP film is squeezed from the top and bottom sides by the two flattening rollers 12, which can effectively flatten the film.

[0026] The surface of the preheating box 3 is provided with an installation groove 13. The inner wall of the installation groove 13 is provided with a limiting slide groove 14. The inner damping slide groove 14 is connected to a U-shaped cover plate 15. The left and right sides of the U-shaped cover plate 15 are provided with strip holes 16 for the membrane to pass through. By setting the installation groove 13, U-shaped cover plate 15, limiting slide groove 14 and strip holes 16, the U-shaped cover plate 15 can slide in the limiting slide groove 14, which can facilitate the removal of the U-shaped cover plate 15, thus facilitating the membrane to pass through the preheating box 3. By setting the strip holes 16, the membrane can easily pass through the U-shaped cover plate 15.

[0027] Three guide rollers 17 and two heating plates 18 are rotatably connected to the surface of the right support plate 4. The two heating plates 18 are located on both sides of the film and have gaps between them. Specifically, the heating plates 18 are carbon fiber heating plates 18.

[0028] Multiple hot air pipes 19 are provided on the rear surface of the preheating box 3, and the hot air pipes 19 are fixedly connected to the preheating box 3. The ends of the hot air pipes 19 are all fixedly connected to the hot air boxes 20, and the lower end of the hot air boxes 20 is fixedly connected to the hot air blower 21. By setting the carbon fiber electric heating plate 18, the film can be initially heated. Hot air is input into the hot air box 20 by the hot air blower 21, and then hot air is delivered into the preheating box 3 through the multiple hot air pipes 19, which can perform secondary heating on the film, so that the film can be heated evenly. In addition, the carbon fiber electric heating plate 18 has high heat conversion efficiency, thereby improving the energy utilization rate. Moreover, the carbon fiber electric heating plate 18 can generate far-infrared radiation, thereby realizing non-contact heating of the film, which is not easy to damage the film and has a good heating effect, thus improving practicality.

[0029] Working principle: When this preheating equipment for CPP film processing is in use, the film is first unfolded by rotating the release roller 5, and then the film is arranged according to... Figure 2 The film passes around multiple guide rollers 17, then through the strip hole 16 of the U-shaped cover plate 15, and then the lower surface of the film is pressed tightly against multiple driving rollers 10. The film then passes between two flattening rollers 12 and is finally fixed on the winding roller 6. The film can be initially heated by the carbon fiber electric heating plate 18. Hot air is input into the hot air box 20 by the hot air blower 21 and then delivered into the preheating box 3 through multiple hot air pipes 19 to heat the film a second time, so that the film can be heated evenly. When the preheated film passes over the multiple driving rollers 10, the rotation of the driving rollers 10 can drive the wrinkles in the middle of the film to both sides, thereby effectively removing the wrinkles. In conjunction with the film flattening mechanism 8, the film can be flattened, effectively avoiding the film deformation and winding difficulties.

[0030] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] Finally: 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 preheating device for CPP film processing and production, comprising a supporting base plate (1), characterized in that: The surface of the support base plate (1) is fixedly connected to the left support plate (2), the preheating box (3) and the right support plate (4). The surface of the right support plate (4) is rotatably connected to the release roller (5) through the mounting seat. The surface of the left support plate (2) is rotatably connected to the take-up roller (6) through the mounting seat. The left side of the preheating box (3) is fixedly connected to the wrinkle removal mechanism (7). A film flattening mechanism (8) is provided between the wrinkle removal mechanism (7) and the take-up roller (6). The wrinkle removal mechanism (7) includes a horizontal support plate (9), multiple driving wheels (10) and multiple power motors (11). The horizontal support plate (9) is fixedly connected to the left side of the preheating box (3). The multiple driving wheels (10) are rotatably connected to the surface of the horizontal support plate (9), and the multiple driving wheels (10) are symmetrically distributed in a stepped manner on the upper surface of the horizontal support plate (9). The power motors (11) are fixedly connected to the end of the horizontal support plate (9), and the power motors (11) are connected to the driving wheels (10) in a transmission connection.

2. The preheating equipment for CPP film processing and production according to claim 1, characterized in that: The power motors (11) on both sides of the central axis of the horizontal support plate (9) rotate in opposite directions, and the power motor (11) near the front end of the horizontal support plate (9) rotates clockwise, while the power motor (11) near the rear end of the horizontal support plate (9) rotates counterclockwise.

3. The preheating equipment for CPP film processing and production according to claim 2, characterized in that: The film flattening mechanism (8) includes two flattening rollers (12), both of which are rotatably connected to the surface of the left support plate (2), and both of the outer surfaces of the two flattening rollers (12) are provided with rubber sleeves.

4. The preheating equipment for CPP film processing and production according to claim 1, characterized in that: The surface of the preheating box (3) is provided with an installation through groove (13), and the inner wall of the installation through groove (13) is provided with a limiting slide groove (14). The inner damping slide groove (14) is connected to a U-shaped cover plate (15), and the left and right sides of the U-shaped cover plate (15) are provided with strip holes (16) for the film to pass through.

5. The preheating equipment for CPP film processing and production according to claim 1, characterized in that: The surface of the right support plate (4) is rotatably connected to three guide rollers (17) and two heating plates (18), with the two heating plates (18) located on both sides of the film and leaving a gap between them.

6. A preheating device for CPP film processing and production according to claim 5, characterized in that: The heating plate (18) is specifically a carbon fiber heating plate.

7. A preheating device for CPP film processing and production according to claim 6, characterized in that: The rear surface of the preheating box (3) is provided with multiple hot air pipes (19), and the hot air pipes (19) are fixedly connected to the preheating box (3). The ends of the hot air pipes (19) are all fixedly connected to a hot air box (20), and the lower end of the hot air box (20) is fixedly connected to a hot air blower (21).

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