Coating drying equipment of thermoplastic polyurethane synthetic leather processing equipment

Abstract

The utility model discloses thermoplastic polyurethane synthetic leather processing equipment coating drying equipment which comprises a box body, heating boxes are arranged on the two sides of the top surface and the two sides of the bottom surface of the box body, and shaft sleeves are arranged in the middles of the top surfaces of the heating boxes. The first motor drives the third bevel gear to rotate, the third bevel gear drives the second bevel gear on the rotating rod to rotate while rotating, and the second bevel gear drives the first bevel gear at the top end of the connecting rod to rotate while rotating, so that the fan blades at one end of the connecting rod rotate, and air can be blown; according to the thermoplastic polyurethane synthetic leather drying device, the thermoplastic polyurethane synthetic leather can be blown out, then electric heating wires in the heating boxes are used for heating blown-out air, the heated air is conveyed into the box body, the thermoplastic polyurethane synthetic leather can be dried, and the two faces of the thermoplastic polyurethane synthetic leather can be blown and dried at the same time through the multiple heating boxes; therefore, the drying uniformity of the thermoplastic polyurethane synthetic leather can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of synthetic leather processing equipment, and in particular to a coating drying device for thermoplastic polyurethane synthetic leather processing equipment. Background Technology

[0002] Thermoplastic polyurethane (TPU) synthetic leather is a high-performance artificial leather that combines the excellent physical properties of TPU with the texture of genuine leather. It is widely used in footwear, clothing, bags, automotive interiors, and other fields. In the processing of thermoplastic polyurethane synthetic leather, coating and drying are key steps that directly affect the product's performance and appearance.

[0003] The existing Chinese patent with publication number CN220376989U discloses a drying equipment for a synthetic leather production line. However, the existing technical solution has the following drawbacks: Although the fan blades blow external air into the dryer through the air inlet, and the dustproof net prevents dust and impurities in the air from entering the dryer through the air inlet, the air entering the dryer blows through the heating wires, converting the natural air into hot air for drying the synthetic leather. Furthermore, the heating wires are evenly distributed on the inner wall of the placement frame, increasing heat dissipation. The heated air is discharged through the heat dissipation and ventilation holes, achieving air circulation and thus drying the synthetic leather. However, in the above technical solution, air can only be blown onto one side of the synthetic leather during drying. Although the mesh structure of the conveyor net ensures that the back of the synthetic leather can also come into contact with the drying air, the airflow to the back is relatively small, which can easily reduce the drying effect on the synthetic leather. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a coating drying device for thermoplastic polyurethane synthetic leather processing equipment, which has the advantages of simultaneously drying both sides of the synthetic leather with air blowing and high drying uniformity, thereby solving the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coating drying device for thermoplastic polyurethane synthetic leather processing, comprising a housing, heating chambers on both sides of the top and bottom surfaces of the housing, and a bushing at the middle position of the top surface of the heating chamber, a connecting rod passing through the bushing, and a fan blade fixedly installed at one end of the connecting rod inside the heating chamber, a heating wire installed on one side of the fan blade inside the heating chamber, and a first helical gear fixedly connected to one end of the connecting rod outside the heating chamber, a horizontal plate between the heating chambers, and a first motor fixedly installed on the horizontal plate, the output end of the first motor being fixedly connected to... The heating box has a top plate on one side of its top surface, and a bushing on the top plate. A rotating rod is inserted through the bushing, and a second helical gear is fixedly connected to both ends of the rotating rod. The second helical gear meshes with the first and third helical gears respectively. Both sides of the box body have through openings. A side plate is provided on one side of the box body below the through opening, and a guide roller is fixedly installed on the top surface of the side plate. Connecting plates are provided on both sides of the through opening on the surface of the box body, and a mounting frame is fixedly connected between the connecting plates. A second motor is fixedly installed at the middle position of the front end surface of the mounting frame, and a take-up roller is fixedly connected to the output end of the second motor.

[0006] Preferably, an electric cylinder is fixedly installed on the connecting plate, and a pressure roller is fixedly connected to the output end of the electric cylinder.

[0007] Preferably, there are multiple heating boxes, and the multiple heating boxes are evenly distributed in pairs on both sides of the top and bottom surfaces of the box body.

[0008] Preferably, ventilation openings are provided on both sides of the top surface of the heating box.

[0009] Preferably, the bottom surface of the box body is provided with support legs on both sides away from the heating box. There are multiple support legs, and the multiple support legs are evenly distributed in pairs on both sides of the bottom surface of the box body. The support legs are fixedly connected to the box body.

[0010] Preferably, the front surface of the box is provided with an observation window, and the space between the observation window and the box is filled with glass glue.

[0011] Preferably, the top surface of the box is provided with ventilation slots on both sides of the heating box.

[0012] Compared with the prior art, this utility model provides a coating drying device for thermoplastic polyurethane synthetic leather processing, which has the following beneficial effects:

[0013] (1) In this utility model, thermoplastic polyurethane synthetic leather is conveyed into the box by the guide roller on one side surface of the box. The first motor is turned on, and the first motor drives the third helical gear to rotate. At the same time, the third helical gear drives the second helical gear on the rotating rod to rotate. At the same time, the second helical gear drives the first helical gear at the top of the connecting rod to rotate, so that the fan blade at one end of the connecting rod rotates and blows air. The blown air is heated by the use of the heating wire in the heating box. After heating, it is conveyed into the box to dry the thermoplastic polyurethane synthetic leather. By using multiple heating boxes, both sides of the thermoplastic polyurethane synthetic leather can be dried by blowing air at the same time, which can improve the drying uniformity of the thermoplastic polyurethane synthetic leather and thus improve its drying effect.

[0014] (2) In this utility model, the second motor on the front surface of the mounting frame is opened, and the second motor drives the winding roller to rotate, so as to wind up the dried thermoplastic polyurethane synthetic leather. At the same time as winding up the thermoplastic polyurethane synthetic leather, the electric cylinder on the connecting plate is opened, and the electric cylinder drives the pressure roller to move. When the pressure roller comes into contact with the thermoplastic polyurethane synthetic leather, the thermoplastic polyurethane synthetic leather can be flattened, reducing the wrinkles on the thermoplastic polyurethane synthetic leather, thus facilitating the subsequent processing of the dried thermoplastic polyurethane synthetic leather and improving its practicality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a coating drying device for thermoplastic polyurethane synthetic leather processing equipment proposed in this utility model;

[0017] Figure 2 This is an enlarged view (A) of a coating drying device for thermoplastic polyurethane synthetic leather processing equipment proposed in this utility model;

[0018] Figure 3 This is a front view of a coating drying device for thermoplastic polyurethane synthetic leather processing equipment proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the heating box structure of a coating drying device for thermoplastic polyurethane synthetic leather processing equipment proposed in this utility model.

[0020] Legend:

[0021] 1. Box body; 2. Opening; 3. Guide roller; 4. Side plate; 5. Heating box; 6. Fan blade; 7. Heating wire; 8. Horizontal plate; 9. First motor; 10. Electric cylinder; 11. Connecting plate; 12. Pressure roller; 13. Mounting frame; 14. Rewinding roller; 15. Second motor; 16. Support leg; 17. First helical gear; 18. Second helical gear; 19. Connecting rod; 20. Rotating rod; 21. Top plate; 22. Third helical gear; 23. Observation window; 24. Ventilation opening. 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] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] Please refer to Figure 1-4A coating drying device for thermoplastic polyurethane synthetic leather processing includes a housing 1. Heating chambers 5 are located on both sides of the top and bottom surfaces of the housing 1. A bushing is located at the middle of the top surface of the heating chamber 5, through which a connecting rod 19 passes. One end of the connecting rod 19 is fixedly mounted with a fan blade 6 inside the heating chamber 5. A heating wire 7 is installed inside the heating chamber 5 on one side of the fan blade 6. One end of the connecting rod 19 is fixedly connected to a first helical gear 17 on the outside of the heating chamber 5. A horizontal plate 8 is provided between the heating chambers 5, and a first motor 9 is fixedly mounted on the horizontal plate 8. A third helical gear 22 is fixedly connected to the output end of the first motor 9. A top plate 21 is located on one side of the top surface of the heating chamber 5, and a bushing is located on the top plate 21. A rotating rod 20 passes through the bushing, and a second helical gear 18 is fixedly connected to both ends of the rotating rod 20. The second helical gear 18 meshes with the first helical gear 17 and the third helical gear 22, respectively. Through-holes 2 are provided on both sides of the housing 1. One side of the housing 1 is located at the through-hole 2. The box 1 has a side plate 4 at the bottom, and a guide roller 3 is fixedly installed on the top surface of the side plate 4. The surface of the box 1 has connecting plates 11 on both sides of the opening 2, and a mounting frame 13 is fixedly connected between the connecting plates 11. A second motor 15 is fixedly installed at the middle position of the front end surface of the mounting frame 13, and a winding roller 14 is fixedly connected to the output end of the second motor 15. The thermoplastic polyurethane synthetic leather is conveyed into the box 1 through the guide roller 3 on one side surface of the box 1. The first motor 9 is turned on, and the first motor 9 drives the third helical gear 22 to rotate. While the third helical gear 22 is rotating, it drives the second helical gear 18 on the rotating rod 20 to rotate. While the second helical gear 18 is rotating, it drives the first helical gear 17 at the top of the connecting rod 19 to rotate, so that the fan blade 6 at one end of the connecting rod 19 can rotate, and thus blow air. The blown air can be heated by the use of the heating wire 7 in the heating box 5. After heating, it is conveyed into the box 1 to dry the thermoplastic polyurethane synthetic leather.

[0025] In one embodiment, an electric cylinder 10 is fixedly installed on the connecting plate 11, and a pressure roller 12 is fixedly connected to the output end of the electric cylinder 10. When the thermoplastic polyurethane synthetic leather is wound up, the electric cylinder 10 on the connecting plate 11 is opened, and the electric cylinder 10 drives the pressure roller 12 to move. When the pressure roller 12 comes into contact with the thermoplastic polyurethane synthetic leather, the thermoplastic polyurethane synthetic leather can be flattened, reducing wrinkles on the thermoplastic polyurethane synthetic leather. This facilitates subsequent processing of the dried thermoplastic polyurethane synthetic leather and improves its practicality.

[0026] In one embodiment, multiple heating boxes 5 are provided, and the multiple heating boxes 5 are evenly distributed in pairs on both sides of the top and bottom surfaces of the box body 1. By using multiple heating boxes 5, both sides of the thermoplastic polyurethane synthetic leather can be dried by blowing air at the same time, thereby improving the drying uniformity of the thermoplastic polyurethane synthetic leather and thus improving its drying effect.

[0027] In one embodiment, ventilation openings 24 are provided on both sides of the top surface of the heating box 5. The use of ventilation openings 24 can maintain normal ventilation of the fan blades 6, thereby enabling the synthetic leather in the box 1 to be dried.

[0028] In one embodiment, the bottom surface of the housing 1 is provided with support legs 16 on both sides away from the heating box 5. There are multiple support legs 16, and the multiple support legs 16 are evenly distributed in pairs on both sides of the bottom surface of the housing 1. The support legs 16 are fixedly connected to the housing 1. The support legs 16 support the housing 1 and can maintain the stability of the housing 1 during use.

[0029] In one embodiment, the front surface of the housing 1 is provided with an observation window 23, and the space between the observation window 23 and the housing 1 is filled with glass glue. The working status inside the housing 1 can be observed by using the observation window 23.

[0030] In one embodiment, ventilation slots are provided through the top surface of the housing 1 on both sides of the heating box 5, through which the gas in the housing 1 can be discharged.

[0031] In one embodiment, the control switch control circuit can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0032] Working principle:

[0033] In use, the thermoplastic polyurethane synthetic leather is conveyed into the box 1 by the guide roller 3 on one side surface of the box 1. The first motor 9 is turned on, which drives the third helical gear 22 to rotate. At the same time, the third helical gear 22 drives the second helical gear 18 on the rotating rod 20 to rotate. At the same time, the second helical gear 18 drives the first helical gear 17 at the top of the connecting rod 19 to rotate, so that the fan blade 6 at one end of the connecting rod 19 can rotate, thus blowing air. The blown air is heated by the heating wire 7 in the heating box 5. After heating, it is conveyed into the box 1 for drying the thermoplastic polyurethane synthetic leather. By using multiple heating boxes 5, both sides of the thermoplastic polyurethane synthetic leather can be dried simultaneously. The surface is dried by blowing air, which can improve the drying uniformity of thermoplastic polyurethane synthetic leather and thus improve its drying effect. The second motor 15 on the front surface of the mounting frame 13 is opened, and the second motor 15 drives the winding roller 14 to rotate, so as to wind up the dried thermoplastic polyurethane synthetic leather. At the same time as winding up the thermoplastic polyurethane synthetic leather, the electric cylinder 10 on the connecting plate 11 is opened, and the electric cylinder 10 drives the pressure roller 12 to move. When the pressure roller 12 comes into contact with the thermoplastic polyurethane synthetic leather, it can be flattened, reducing wrinkles on the thermoplastic polyurethane synthetic leather. This facilitates the subsequent processing of the dried thermoplastic polyurethane synthetic leather and improves its practicality.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coating drying device for thermoplastic polyurethane synthetic leather processing, comprising a housing (1), characterized in that, Heating chambers (5) are provided on both sides of the top and bottom surfaces of the housing (1). A bushing is provided at the middle position of the top surface of the heating chamber (5). A connecting rod (19) is provided through the bushing. A fan blade (6) is fixedly installed inside the heating chamber (5) at one end of the connecting rod (19). An electric heating wire (7) is installed inside the heating chamber (5) on one side of the fan blade (6). A first helical gear (17) is fixedly connected to one end of the connecting rod (19) on the outside of the heating chamber (5). A horizontal plate (8) is provided between the heating chambers (5). A first motor (9) is fixedly installed on the horizontal plate (8). A third helical gear (22) is fixedly connected to the output end of the first motor (9). A top plate (21) is provided on one side of the top surface of the heating chamber (5). A heating element (7) is provided on the top plate (21). The housing has a bushing with a rotating rod (20) running through it. The two ends of the rotating rod (20) are fixedly connected to a second helical gear (18). The second helical gear (18) meshes with a first helical gear (17) and a third helical gear (22) respectively. The two sides of the housing (1) are provided with openings (2). A side plate (4) is provided on one side of the housing (1) below the opening (2). A guide roller (3) is fixedly installed on the top surface of the side plate (4). A connecting plate (11) is provided on both sides of the opening (2) of the housing (1). A mounting frame (13) is fixedly connected between the connecting plates (11). A second motor (15) is fixedly installed at the middle position of the front end surface of the mounting frame (13). A take-up roller (14) is fixedly connected to the output end of the second motor (15).

2. The coating drying equipment for thermoplastic polyurethane synthetic leather processing according to claim 1, characterized in that, An electric cylinder (10) is fixedly installed on the connecting plate (11), and a pressure roller (12) is fixedly connected to the output end of the electric cylinder (10).

3. The coating drying equipment for thermoplastic polyurethane synthetic leather processing according to claim 1, characterized in that, The heating box (5) is provided in multiple ways, and the multiple heating boxes (5) are evenly distributed in pairs on both sides of the top and bottom surfaces of the box body (1).

4. The coating drying equipment for thermoplastic polyurethane synthetic leather processing according to claim 1, characterized in that, Ventilation openings (24) are provided on both sides of the top surface of the heating box (5).

5. The coating drying equipment for thermoplastic polyurethane synthetic leather processing according to claim 1, characterized in that, The bottom surface of the box (1) is provided with support legs (16) on both sides away from the heating box (5). There are multiple support legs (16), and the multiple support legs (16) are evenly distributed on both sides of the bottom surface of the box (1). The support legs (16) are fixedly connected to the box (1).

6. The coating drying equipment for thermoplastic polyurethane synthetic leather processing according to claim 1, characterized in that, The front surface of the box (1) is provided with an observation window (23), and glass glue is filled between the observation window (23) and the box (1).

7. The coating drying equipment for thermoplastic polyurethane synthetic leather processing according to claim 1, characterized in that, The top surface of the box (1) is provided with ventilation slots on both sides of the heating box (5).

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