Film covering mechanism for TPU material protective film

By setting up a stretching component and a heating component on the laminating table, the problems of uneven fabric stretching and air bubbles during the lamination process of TPU material protective film were solved, achieving a flat and smooth lamination effect.

CN224060462UActive Publication Date: 2026-03-31FOSHAN JIFUMET TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing TPU material protective film coating mechanisms are prone to uneven fabric stretching and air bubbles during the coating process, resulting in an uneven coating surface that fails to meet production requirements.

Method used

An unfolding assembly is installed above the laminating table. A triangular clamping rod and a hydraulic cylinder drive the roller shaft to move horizontally, ensuring that the film is unfolded flat. A heating assembly heats both sides of the material to prevent air bubbles from forming.

Benefits of technology

It effectively prevents the membrane fabric from wrinkling, ensuring a smooth and flat coating surface and improving coating quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a laminating mechanism of TPU (thermoplastic polyurethane) material protective film, which relates to the technical field of laminating mechanisms and comprises a laminating table, a protective film opening component is arranged in the middle above the laminating table, cloth clamping rods are symmetrically arranged on the side edges of the opening component, and a connecting component is arranged at the vertex of the opening component. The connecting assembly is fixedly installed above the midpoint of the supporting rod, a hydraulic cylinder is arranged in the middle of the opening assembly on one side, the two ends of the hydraulic cylinder are movably connected with conveying barrels, and one ends of the conveying barrels are connected with the cloth rolling shaft. According to the film covering mechanism for the TPU material protective film, the heating assemblies are arranged on one side of the opening assembly, the heating assemblies supply power to the opening assembly through the heating box above the heating assemblies so that the opening assembly can be kept in a heating state, the two sets of heating assemblies are arranged, and the heating assemblies conduct plastic film heating on the front face and the back face of a material; bubbles can be prevented when the material is subjected to film molding, so that the surface of the film of the material is smooth.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a film covering mechanism technical field, concretely to a film covering mechanism of TPU material protective film. BACKGROUND

[0002] TPU (thermoplastic polyurethane elastomer) has excellent elasticity, can keep stable performance under various environments, has excellent wear resistance at the same time, is widely used in footwear, clothing, sports equipment and other industries, and TPU material is easy to be shaped through common thermoplastic material processing methods such as injection molding, extrusion and calendering, and can be co-processed with other high molecular materials to form a polymer alloy with complementary performance, so it has wide application value in many fields.

[0003] The existing can refer to the announcement number CN217704721U of Chinese utility model patent, it discloses a kind of film covering mechanism of TPU material protective film, the setting of this kind of film covering mechanism of TPU material protective film, including conveying belt, further including protective assembly and film covering assembly;Protective assembly includes protective box, isolation component, first telescopic piece, fan cover and dust suction piece, protective box is located above conveying belt, isolation component is connected with protective box, first telescopic piece is located at the side of protective box away from conveying belt, fan cover is fixedly connected with the output end of first telescopic piece, and located in protective box, dust suction piece is communicated with fan cover, film covering assembly is located at the inboard of protective box.Conveying belt transports carton board to the inboard of protective box, first pass through isolation component, be primarily removed dust, then pass through fan cover and be sucked away dust, then pass through film covering assembly and complete film covering, utilize multiple fan covers to absorb dust during film covering process, then be output, avoid the adhesion of dust, promote better fitting effect, and better film covering effect.

[0004] In the use process of existing film covering mechanism of TPU material protective film, due to the pleating and air bubble of TPU material during film covering, the surface of TPU material is not smooth after film covering, and the production index cannot be reached, which needs to be improved, therefore, the technical personnel in the art provide a kind of film covering mechanism of TPU material protective film to solve the problems raised in the above background technology. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of film covering mechanism of TPU material protective film to solve the problems of existing film covering mechanism of TPU material protective film cloth opening and air bubble elimination raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A TPU material protective film coating mechanism includes a coating table, a protective film spreading component disposed at the top center of the coating table, fabric clamping rods symmetrically disposed on the sides of the spreading component, and a connecting component disposed at the apex of the spreading component. The connecting component is fixedly installed above the midpoint of the support rod, and a hydraulic cylinder is disposed in the middle of one side of the spreading component, with conveying cylinders movably connected to both ends of the hydraulic cylinder. One end of the conveying cylinder is connected to a fabric roller shaft. A heating component is disposed above the front end of the coating table, and a heating box is disposed on one side above the heating component. Both ends of the heating component are located inside a fixed frame, and mounting blocks are disposed on both sides of the fixed frame.

[0008] Preferably, a conveying roller is provided above one side of the film coating table, and three sets of rollers for protective film transfer are provided above the conveying roller, and the film is located on the surface of the conveying roller. A control box is provided on one side of the conveying roller, and a receiving roller is provided on one side of the heating assembly.

[0009] Preferably, the two sides of the receiving roller are inserted into the inside of the roller clamp, and one end of the receiving roller is directly connected to the motor. The inside of the roller clamp is provided with a slot, and a handle is provided on one side of the slot. A movable plate is provided on the surface of the handle, and a plate groove is inserted inside the roller clamp.

[0010] Preferably, the fabric clamping rod is close to one side of the film-coating table, and the lower end of the support rod is connected to the surface of the fabric clamping rod. The spreading assembly is triangular, and the fabric roller moves horizontally on both sides of the hydraulic cylinder through the conveying cylinder.

[0011] Preferably, the mounting block is fixedly installed on one side of the inner wall of the film-coating platform, and the heating components are located on the upper and lower sides of the protective film.

[0012] Preferably, the clamping roller is fixedly connected to the middle of the film-coating table, and the clamping rod and the take-up roller are located on the same horizontal line, and the rings on both sides of the take-up roller are located on one side of the inner wall of the film-coating table.

[0013] Preferably, the hydraulic cylinder is located in the middle of the film-coating table, and the groove between the cloth roller and the cloth clamping rod is on the same horizontal line.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The coating mechanism of this TPU material protective film has a stretching component in the middle of the upper part of the coating table. The stretching component is triangular and the two vertices are fixed to the upper part of the clamping rod. The membrane can slide smoothly inside the clamping rod through the groove inside the clamping rod. A hydraulic cylinder is set in the middle of the stretching component on one side. The hydraulic cylinder causes the roller to move horizontally above the membrane through the conveyor cylinder. When the roller moves, it can continuously stretch the pleated membrane, keep it in an unfolded state, facilitate the flat coating of the membrane and prevent the membrane from wrinkling.

[0016] 2. The coating mechanism of this TPU material protective film has a heating component on one side of the stretching component. The heating component is powered by the heating box above to keep it in a heated state. There are two sets of heating components. The heating components heat the front and back of the material to form a plastic film, which can prevent air bubbles from forming during the plastic film process and make the coated surface of the material smooth. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a coating mechanism for a TPU material protective film in one embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the spreading component structure of a coating mechanism for a TPU material protective film in one embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the heating component structure of a coating mechanism for a TPU material protective film in one embodiment of the present invention.

[0020] Figure 4 This is an enlarged schematic diagram of the clamping roller of a coating mechanism for a TPU material protective film in one embodiment of the present invention.

[0021] 1. Film coating table; 2. Conveyor roller; 3. Take-up roller; 31. Roller clamp; 32. Motor; 33. Moving plate; 34. Handle; 35. Plate groove; 4. Heating assembly; 41. Heating box; 42. Fixing frame; 43. Mounting block; 5. Film body; 6. Spreading assembly; 61. Support rod; 62. Connecting assembly; 63. Cloth clamping rod; 64. Hydraulic cylinder; 65. Conveyor cylinder; 66. Cloth roller shaft; 7. Control box. Detailed Implementation

[0022] 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.

[0023] Combined with appendix Figures 1-4 In this embodiment, a TPU material protective film coating mechanism includes a coating table 1, a conveying roller 2 is arranged above one side of the coating table 1, and three sets of rollers for transferring the protective film are arranged above the conveying roller 2. The film body 5 is located on the surface of the conveying roller 2. A control box 7 is arranged on one side of the conveying roller 2, and a take-up roller 3 is arranged on one side of the heating component 4. The two sides of the take-up roller 3 are inserted into the interior of the roller clamp 31, and one end of the take-up roller 3 is directly connected to the motor 32. The inside of the roller clamp 31 is provided with a slot, and a handle 34 is provided on one side of the slot. A movable plate 33 is provided on the surface of the handle 34, and a plate groove 35 is inserted inside the roller clamp 31. The roller clamp 31 is fixedly connected to the middle of the coating table 1, and the cloth clamping rod 63 and the take-up roller 3 are located on the same horizontal line. The rings on both sides of the take-up roller 3 are located on one side of the inner wall of the coating table 1.

[0024] Specifically, a take-up roller 3 is provided at one end of the film coating table 1. The take-up roller 3 is rotated by a motor 32 on one side to bundle the film-coated TPU material. At the same time, the take-up roller 3 is installed by a roller clamp 31. A movable plate 33 is provided on one side of the roller clamp 31. The movable plate 33 opens or closes one side of the take-up roller 3 by moving above the plate groove 35 and by limiting the position of the handle 34, so that the take-up roller 3 can be removed after the film is rolled up.

[0025] A heating component 4 is provided above the front end of the laminating table 1, and a heating box 41 is provided on one side above the heating component 4. Both ends of the heating component 4 are located inside the fixing frame 42, and mounting blocks 43 are provided on both sides of the fixing frame 42. The mounting blocks 43 are fixedly installed on one side of the inner wall of the laminating table 1, and the heating component 4 is located on the upper and lower sides of the protective film.

[0026] Specifically, a heating component 4 is provided on one side of the supporting component 6. The heating component 4 is plate-shaped, and a heating box 41 is provided on the upper side of the heating component 4. The heating box 41 heats the heating component 4 to raise it to a certain temperature. When the material passes through the interior of the heating component 4, the heated component 4 can heat both sides of the material, thereby making the material and the plastic film adhere more closely and effectively preventing the generation of air bubbles.

[0027] A protective film spreading assembly 6 is provided at the top center of the laminating table 1. A fabric clamping rod 63 is symmetrically arranged on the side of the spreading assembly 6, and a connecting assembly 62 is provided at the apex of the spreading assembly 6. The connecting assembly 62 is fixedly installed above the midpoint of the support rod 61. A hydraulic cylinder 64 is provided in the middle of one side of the spreading assembly 6, and a conveyor cylinder 65 is movably connected to both ends of the hydraulic cylinder 64. One end of the conveyor cylinder 65 is connected to the fabric roller shaft 66. The fabric clamping rod 63 is close to one side of the laminating table 1, and the lower end of the support rod 61 is connected to the surface of the fabric clamping rod 63. The spreading assembly 6 is triangular, and the fabric roller shaft 66 moves horizontally on both sides of the hydraulic cylinder 64 via the conveyor cylinder 65. The hydraulic cylinder 64 is located in the middle of the laminating table 1, and the grooves between the fabric roller shaft 66 and the fabric clamping rod 63 are on the same horizontal line.

[0028] Specifically, the spreading component 6 is located above the center of the film-coating table 1 via the support rod 61 and the connecting component 62. Cloth clamping rods 63 are provided on both sides of the spreading component 6. The inside of the cloth clamping rods 63 has grooves that facilitate the flow of the protective film on both sides of the cloth clamping rods 63, preventing wrinkles during rolling. A hydraulic cylinder 64 is provided on one side of the spreading component 6. The hydraulic cylinder 64 uses hydraulic power to cause the conveyor cylinder 65 and the cloth roller 66 to reciprocate on both sides. When the cloth roller 66 rolls back and forth, it continuously spreads the wrinkled protective film. Since the cloth roller 66 is located above the protective film, when the equipment spreads the protective film, it ensures smooth and flat contact with the material, making the material surface flat.

[0029] Working principle: First, a conveyor roller 2 is installed above the laminating table 1, and three sets of protective film transfer rollers are installed above the conveyor roller 2. Both the rollers and the conveyor roller 2 are operated by the control box 7. A film body 5 is bound to the outside of the conveyor roller 2. When the film body 5 is transferred to the middle of the laminating table 1 by the conveyor roller 2 and the rollers, the width of the film body 5 is equal to the distance between the clamping rod 63 and the film body 5. The film body 5 is transferred through the groove in the middle of the clamping rod 63, and a spreading component 6 is installed in the middle of the clamping rod 63. The spreading component 6 fixes the position of the clamping rod 63, and a hydraulic cylinder 64 is installed in the middle of the spreading component 6 on one side. The hydraulic cylinder 64 uses hydraulic power to continuously move the conveyor cylinder 65 and the rolling shaft 66 on both sides. The horizontal movement of the film can both stretch the film above the material and make the film and the material fit better, preventing the film from wrinkling. Then the material enters the heating component 4 through the clamping rod 63. The heating component 4 heats the material through the heating box 41, heating and bonding the material in the middle, making the material and the film fit better and preventing air bubbles. Finally, the take-up roller 3 is continuously rotated by the motor 32 to wind up the produced material. After winding, the moving plate 33 is opened and moved upward to facilitate the opening of one side of the clamping roller 31, making it easy to unload the wound material. This completes the entire process of using the TPU material protective film coating mechanism.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A film laminating mechanism of a TPU material protective film, comprising a film laminating table (1), characterized in that: The upper middle of the film table (1) is provided with a protective film opening assembly (6), the side edges of the opening assembly (6) are symmetrically provided with a clamping rod (63), and the vertex of the opening assembly (6) is provided with a connecting assembly (62) fixedly installed above the midpoint of the supporting rod (61), one side of the opening assembly (6) is provided with a hydraulic cylinder (64), and the two ends of the hydraulic cylinder (64) are movably connected with a conveying cylinder (65), one end of the conveying cylinder (65) is connected with a cloth roller shaft (66), the upper front end of the film table (1) is provided with a heating assembly (4), one side of the heating assembly (4) is provided with a heating box (41), and the two ends of the heating assembly (4) are located inside the fixed frame (42), and the two sides of the fixed frame (42) are provided with mounting blocks (43).

2. The film coating mechanism for TPU material protective film according to claim 1, characterized in that: One side of the film table (1) is provided with a conveying roller (2), and the upper side of the conveying roller (2) is provided with three groups of roller bars for conveying the protective film, and the film body (5) is located on the surface of the conveying roller (2), one side of the conveying roller (2) is provided with a control box (7), and one side of the heating assembly (4) is provided with a collecting roller (3).

3. The film coating mechanism for TPU material protective film according to claim 2, characterized in that: The two sides of the collecting roller (3) are inserted into the inside of the clamping roller device (31), one end of the collecting roller (3) is directly connected with a motor (32), the inside of the clamping roller device (31) is provided with a notch, one side of the notch is provided with a buckle handle (34), the surface of the buckle handle (34) is provided with a moving plate (33), and the inside of the clamping roller device (31) is inserted with a plate groove (35).

4. The film coating mechanism for TPU material protective film according to claim 1, characterized in that: The clamping rod (63) is closely attached to one side of the film table (1), and the lower end of the supporting rod (61) is connected with the surface of the clamping rod (63), the opening assembly (6) is triangular, and the cloth roller shaft (66) moves horizontally on the two sides of the hydraulic cylinder (64) through the conveying cylinder (65).

5. The film coating mechanism for TPU material protective film according to claim 1, characterized in that: The mounting block (43) is fixedly installed on one side of the inner wall of the film table (1), and the heating assembly (4) is located on the upper and lower sides of the protective film.

6. The film coating mechanism for TPU material protective film according to claim 3, characterized in that: The clamping roller device (31) is fixedly connected to the middle of the film table (1), the clamping rod (63) and the collecting roller (3) are located on the same horizontal line, and the annular rings on the two sides of the collecting roller (3) are located on one side of the inner wall of the film table (1).

7. The film coating mechanism for TPU material protective film according to claim 1, characterized in that: The hydraulic cylinder (64) is located in the middle of the film table (1), and the recesses in the middle of the cloth roller shaft (66) and the clamping rod (63) are located on the same horizontal line.

Citation Information

Patent Citations

  • Film covering mechanism for TPU material protective film

    CN217704721U