Laminating device for paper pulp molded product

Abstract

The utility model discloses a film laminating device for a paper pulp molded product, and belongs to the technical field of paper pulp molded product production. Comprising a film laminating table, a supporting frame is fixedly arranged on the film laminating table, and a paper-plastic product placed on the film laminating table is arranged in the supporting frame; a fixing cylinder is fixedly arranged in the supporting frame, and a telescopic rod is arranged in the fixing cylinder in a sliding mode. The lower end of the telescopic rod is fixedly connected with an upper pressing mold, and a clamping structure corresponding to the paper-plastic product in shape is arranged below the upper pressing mold. A groove located above the clamping structure is formed in the upper pressing mold, and the groove communicates with the clamping structure through a negative pressure hole; and an air heater and a negative pressure machine which are communicated with the groove are arranged on the supporting frame. The negative pressure machine is arranged, so that the film covering material can generate preliminary deformation, the clamping structure corresponding to the paper-plastic product in shape is arranged, and by means of clamping of the upper pressing mold and the paper-plastic product, the paper pulp molded product with the complex shape and the curved surface can be well covered with the film and attached to the paper-plastic product.

Description

Technical Field

[0001] The utility model provides a film coating device for pulp molded products, belonging to the technical field of pulp molded product production. Background Art

[0002] Pulp molded products are products made from pulp materials that have been processed and molded. These products are usually made by mixing pulp with other additives and then pressurizing them in a mold. Pulp molded products can have a certain degree of hardness, strength, and durability, and are suitable for a variety of uses.

[0003] The laminating process is often used in the production of pulp molded products. Laminating can provide an additional protective layer, enhance the durability of the product, prevent the penetration of moisture or pollutants, and improve the appearance and feel. The laminating method often adopts hot pressing laminating, placing thermoplastic laminating materials (such as polyethylene, polypropylene, etc.) on the surface of the pulp molded product, and using a hot press to bond the laminating material to the surface of the product. However, pulp molded products often have complex shapes and curved surfaces. For molded products with grooves at the lower end, positioning blocks can be set to match the grooves during laminating to quickly position them; but it is more difficult to laminate than general objects, and the laminating material often cannot completely cover and fit the complex surface of pulp molded products, affecting the aesthetics and practicality of the pulp molded products after lamination. Utility Model Content

[0004] The technical problem to be solved by the utility model is that it is difficult to coat pulp molded products with complex shapes and curved surfaces, and the coating material often cannot completely cover and fit the complex surface of the pulp molded products, which affects the aesthetics and practicality of the coated pulp molded products.

[0005] In order to solve the above problems, the utility model proposes a technical solution: a coating device for pulp molded products, comprising a coating table, a supporting frame is fixedly arranged on the coating table, and a paper-molded product placed on the coating table is arranged in the supporting frame; a fixed cylinder is fixedly arranged in the supporting frame, and a telescopic rod is slidably arranged in the fixed cylinder; an upper pressing mold is fixedly connected to the lower end of the telescopic rod, and a clamping structure corresponding to the shape of the paper-molded product is provided below the upper pressing mold; a groove located above the clamping structure is provided in the upper pressing mold, and the groove is connected to the clamping structure through a negative pressure hole; a hot air blower and a negative pressure machine connected to the groove are provided on the support frame.

[0006] As an improvement, a motor is provided on the support frame, and a screw rod located in a fixed cylinder is fixedly connected to the output shaft of the motor; a movable plate is threadedly connected to the screw rod, and a connecting rod fixedly connected to the telescopic rod is fixedly connected below the movable plate.

[0007] As an improvement, the inner wall of the fixed cylinder is square, the movable plate is a square corresponding to the inner wall of the fixed cylinder, and the movable plate and the inner wall of the fixed cylinder are in contact with each other.

[0008] As an improvement, an anti-stuck net is provided in the negative pressure hole, and the lower end of the anti-stuck net is flush with the lower end of the negative pressure hole; and an air vent connected to the groove is provided on the upper pressure mold.

[0009] As an improvement, a hot pressing layer is provided on the inner wall of the clamping structure, and a preheating plate located below the paper-plastic product is provided in the laminating table.

[0010] As an improvement, a positioning groove is provided at the bottom of the paper-plastic product, and a positioning block inserted into the positioning groove is fixedly connected to the preheating plate.

[0011] As an improvement, the hot air blower is connected to the groove through an air supply pipe, and the negative pressure machine is connected to the groove through a negative pressure pipe; the air supply pipe and the negative pressure pipe are both sufficiently long hoses.

[0012] Beneficial effects of the utility model:

[0013] The support frame is provided with a hot air blower and a negative pressure machine connected to the groove. By providing the negative pressure machine, the coating material can be adsorbed in the clamping structure, so that the coating material undergoes a preliminary deformation corresponding to the clamping structure under the action of the negative pressure attraction. At the same time, the clamping structure corresponds to the shape of the paper-plastic product. When the telescopic rod drives the upper pressing mold to move downward so that the clamping structure is clamped with the paper-plastic product, the coating material can be completely fitted with the paper-plastic product, thereby making the coating of pulp molded products with complex shapes and curved surfaces simpler and achieving better coverage and fitting effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional diagram of a film coating device for pulp molded products.

[0015] Figure 2 This is a stereoscopic diagram from another perspective of a film coating device for pulp molded products of the utility model.

[0016] Figure 3 The utility model is a diagram showing the internal structure of a fixed cylinder of a coating device for pulp molded products.

[0017] Figure 4 This is an exploded view of the connection between an upper pressing mold and a paper-plastic product of a laminating device for a pulp molded product of the utility model.

[0018] Figure 5 The utility model is a cross-sectional view of an upper pressing mold of a coating device for pulp molded products.

[0019] Figure 6 This is an exploded view of the connection between a preheating plate and a paper-plastic product of a laminating device for pulp molded products according to the utility model.

[0020] 1. Laminating table; 2. Support frame; 3. Hot air blower; 4. Telescopic rod; 5. Fixed cylinder; 6. Negative pressure machine; 7. Upper pressure mold; 8. Paper and plastic products; 9. Air duct; 10. Negative pressure pipe; 11. Preheating plate; 12. Connecting rod; 13. Moving plate; 14. Motor; 15. Screw; 16. Groove; 17. Negative pressure hole; 18. Anti-stuck net; 19. Clamping structure; 20. Air vent; 21. Hot pressing layer; 22. Positioning block; 23. Positioning groove. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] according to Figure 1-6 As shown: the utility model provides a coating device for pulp molded products: it includes a coating table 1, a support frame 2 is fixedly arranged on the coating table 1, and a paper-molded product 8 placed on the coating table 1 is arranged in the support frame 2; a fixed cylinder 5 is fixedly arranged in the support frame 2, and a telescopic rod 4 is slidably arranged in the fixed cylinder 5; an upper pressing mold 7 is fixedly connected to the lower end of the telescopic rod 4, and a clamping structure 19 corresponding to the shape of the paper-molded product 8 is provided below the upper pressing mold 7; a groove 16 located above the clamping structure 19 is provided in the upper pressing mold 7, and the groove 16 is connected to the clamping structure 19 through a negative pressure hole 17; a hot air blower 3 and a negative pressure machine 6 connected to the groove 16 are provided on the support frame 2.

[0023] By setting up the negative pressure machine 6, the coating material can be initially deformed, and by setting up a snap-fit ​​structure 19 corresponding to the shape of the paper-molded product 8, the snap-fit ​​between the upper pressure mold 7 and the paper-molded product 8 can achieve better coating and bonding effects on pulp molded products with complex shapes and curved surfaces.

[0024] The support frame 2 is provided with a motor 14, and a screw rod 15 located in the fixed cylinder 5 is fixedly connected to the output shaft of the motor 14; a moving plate 13 is threadedly connected to the screw rod 15, and a connecting rod 12 fixedly connected to the telescopic rod 4 is fixedly connected below the moving plate 13. The inner wall of the fixed cylinder 5 is square, and the moving plate 13 is a square corresponding to the inner wall of the fixed cylinder 5, and the moving plate 13 and the inner wall of the fixed cylinder 5 are in contact with each other.

[0025] The cooperation between the inner wall of the square fixed tube 5 and the square movable plate 13 can limit the rotation of the movable plate 13 , thereby converting the rotation of the screw rod 15 into the movement of the movable plate 13 , and driving the telescopic rod 4 to move and retract through the connecting rod 12 .

[0026] An anti-stuck net 18 is provided in the negative pressure hole 17, and the lower end of the anti-stuck net 18 is flush with the lower end of the negative pressure hole 17; an air hole 20 connected to the groove 16 is provided on the upper pressing mold 7. A hot pressing layer 21 is provided on the inner wall of the clamping structure 19, and a preheating plate 11 located below the paper plastic product 8 is provided in the laminating table 1.

[0027] The setting of the anti-stuck net 18 can prevent the coating material from being stuck in the negative pressure hole 17 under the action of the negative pressure machine 6. At the same time, the setting of the preheating plate 11 can preheat the paper-plastic product 8 to soften it, so that the coating material can better fit the surface, which can reduce the stress during the coating process and improve the fitting effect.

[0028] A positioning groove 23 is provided at the bottom of the paper plastic product 8, and a positioning block 22 inserted into the positioning groove 23 is fixedly connected to the preheating plate 11. The positioning groove 23 and the positioning block 22 can quickly position the paper plastic product 8, thereby increasing the accuracy of the coating of the paper plastic product 8.

[0029] The hot air blower 3 is connected to the groove 16 through the air delivery pipe 9, and the negative pressure machine 6 is connected to the groove 16 through the negative pressure pipe 10; the air delivery pipe 9 and the negative pressure pipe 10 are both sufficiently long hoses.

[0030] The air delivery pipe 9 and the negative pressure pipe 10 are both sufficiently long hoses, which can ensure that when the telescopic rod 4 is extended or retracted, the connection between the hot air blower 3, the negative pressure machine 6 and the groove 16 in the upper pressing mold 7 is not affected.

[0031] Principle of the utility model

[0032] When using the utility model, first use the positioning groove 23 and the positioning block 22 to position the paper-plastic product 8 on the preheating plate 11 for preheating, place the coating material under the snap-fit ​​structure 19 and start the negative pressure machine 6 at the same time, so that the negative pressure machine 6 adsorbs the coating material into the snap-fit ​​structure 19 through the negative pressure hole 17. At the same time, due to the effect of attraction, the coating material can produce preliminary changes according to the shape of the snap-fit ​​structure 19. At the same time, the staff can assist in operating the coating material so that the deformation of the coating material corresponds to the shape of the snap-fit ​​structure 19 as much as possible.

[0033] The hot pressing layer 21 is heated, and the motor 14 is started. Driven by the movable plate 13, the telescopic rod 4 drives the upper pressing mold 7 to move downward. When the upper pressing mold 7 is engaged with the paper-plastic product 8, the negative pressure machine 6 is closed and the hot air blower 3 is started to blow hot air toward the coating material through the groove 16 and the negative pressure hole 17. Under the action of the pressure of the upper pressing mold 7 and the wind force of the hot air, the coating material that has undergone preliminary deformation can well complete the complete coverage and bonding with the paper-plastic product 8.

[0034] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A coating device for pulp molded products, comprising a coating platform (1), a support frame (2) fixedly arranged on the coating platform (1), and a paper molded product (8) placed on the coating platform (1) arranged in the support frame (2); characterized in that: A fixed cylinder (5) is fixedly arranged in the support frame (2), and a telescopic rod (4) is slidably arranged in the fixed cylinder (5); the lower end of the telescopic rod (4) is fixedly connected to an upper pressing mold (7), and a clamping structure (19) corresponding to the shape of the paper-plastic product (8) is provided below the upper pressing mold (7); a groove (16) located above the clamping structure (19) is provided in the upper pressing mold (7), and the groove (16) and the clamping structure (19) are connected through a negative pressure hole (17); and a hot air blower (3) and a negative pressure machine (6) connected to the groove (16) are provided on the support frame (2).

2. A coating device for pulp molded products according to claim 1, characterized in that: The support frame (2) is provided with a motor (14), and a screw rod (15) located in a fixed cylinder (5) is fixedly connected to the output shaft of the motor (14); a movable plate (13) is threadedly connected to the screw rod (15), and a connecting rod (12) fixedly connected to the telescopic rod (4) is fixedly connected below the movable plate (13).

3. A coating device for pulp molded products according to claim 2, characterized in that: The inner wall of the fixed cylinder (5) is square, the movable plate (13) is square corresponding to the inner wall of the fixed cylinder (5), and the movable plate (13) and the inner wall of the fixed cylinder (5) are in contact with each other.

4. The coating device for pulp molded products according to claim 1, characterized in that: An anti-stuck net (18) is arranged in the negative pressure hole (17), and the lower end of the anti-stuck net (18) is flush with the lower end of the negative pressure hole (17); and an air vent (20) communicating with the groove (16) is provided on the upper pressure mold (7).

5. The coating device for pulp molded products according to claim 1, characterized in that: The inner wall of the clamping structure (19) is provided with a hot pressing layer (21), and the laminating platform (1) is provided with a preheating plate (11) located below the paper-plastic product (8).

6. A coating device for pulp molded products according to claim 5, characterized in that: A positioning groove (23) is provided at the bottom of the paper-plastic product (8), and a positioning block (22) inserted into the positioning groove (23) is fixedly connected to the preheating plate (11).

7. The coating device for pulp molded products according to claim 1, characterized in that: The hot air blower (3) is connected to the groove (16) via an air supply pipe (9), and the negative pressure machine (6) is connected to the groove (16) via a negative pressure pipe (10); both the air supply pipe (9) and the negative pressure pipe (10) are hoses.

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