A cooling device for thermoplastic polyurethane film processing

Abstract

The utility model belongs to the technical field of film processing, specifically is a kind of cooling device for thermoplastic polyurethane film processing, including bottom plate, cooling mechanism is arranged on the bottom plate, the cooling mechanism includes: cooling assembly, a pair of vertical plate is fixedly connected on bottom plate, a pair of vertical plate top is fixedly connected with top plate, a pair of sliding groove is set in vertical plate, sliding block is slidably connected in sliding groove, L-shaped pipe is fixedly connected in the side wall of sliding block, a pair of L-shaped pipe is fixedly connected with hollow roll, a group of through holes are set in hollow roll, bottom plate top and top plate bottom are provided with cold gas conveying assembly to convey cold gas, to solve the general single-sided cooling, the heat transfer path of single-sided cooling is longer, and the thermal resistance is larger, resulting in relatively low cooling efficiency, this is particularly obvious when film thickness is relatively thick or production speed is relatively fast, possibly leading to the problem of uneven film cooling.

Description

Technical Field

[0001] This utility model belongs to the field of thin film processing technology, specifically a cooling device for thermoplastic polyurethane thin film processing. Background Technology

[0002] Thermoplastic polyurethane film is a film material made of thermoplastic polyurethane elastomer. Thermoplastic polyurethane elastomer is an elastomer that combines the properties of rubber and plastic, and is produced by polymerization of diisocyanate, polyol, and chain extender. Cooling is one of the key steps in the processing of thermoplastic polyurethane film.

[0003] In existing technologies, cooling is generally performed on one side only. The heat transfer path of one-sided cooling is relatively long and the thermal resistance is relatively large, resulting in relatively low cooling efficiency. This is especially noticeable when the film thickness is thick or the production speed is fast, which may lead to uneven cooling of the film.

[0004] Therefore, this utility model provides a cooling device for processing thermoplastic polyurethane films. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the issue that single-sided cooling typically results in a longer heat transfer path and higher thermal resistance, leading to relatively low cooling efficiency, which is particularly noticeable when the film thickness is thicker or the production speed is faster, potentially causing uneven film cooling.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A cooling device for processing thermoplastic polyurethane film according to this utility model includes a base plate, and a cooling mechanism is provided on the base plate. The cooling mechanism includes:

[0007] A cooling assembly includes a pair of upright plates fixed to a base plate, a top plate fixed to the top of the pair of upright plates, a pair of sliding grooves on the upright plates, a sliding block slidably connected in the sliding grooves, an L-shaped tube fixed to the side wall of the sliding block, a hollow roller fixed to the pair of L-shaped tubes, a set of through holes on the hollow roller, and a cold air conveying assembly for conveying cold air provided at the top of the base plate and the bottom of the top plate.

[0008] The tension adjustment assembly is set on a pair of L-shaped tubes for adjusting the film tension.

[0009] Preferably, the air delivery assembly includes a pair of air conditioners fixedly connected to the top of the base plate and the bottom of the top plate, respectively. The output end of the air conditioner is provided with a three-way pipe, and the other two ends of the three-way pipe are respectively slidably connected to one vertical end of a pair of L-shaped pipes.

[0010] Preferably, a first fixing block is fixed to the outer circular wall of both vertical ends of the three-way pipe, and a second fixing block is fixed to one vertical end of the L-shaped pipe. A first electric actuator is fixed to the bottom of the first fixing block, and the telescopic end of the first electric actuator is fixed to the top of the second fixing block.

[0011] Preferably, the tension adjustment assembly includes a pair of L-shaped tubes rotatably connected to a conical shell at one end, a set of support rods fixed to the conical shells, and a rotating roller rotatably connected between the opposite sidewalls of the pair of support rods via a first rotating shaft.

[0012] Preferably, a first concave block is fixedly connected to both the top of the base plate and the bottom of the top plate, and a second electric push rod is rotatably connected between the opposite sidewalls of the first concave block via a first rotating shaft.

[0013] Preferably, a second concave block is fixedly connected to the conical shell, and the telescopic end of the second electric actuator is rotatably connected between the opposite sidewalls of the second concave block via a second rotating shaft.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The cooling device for processing thermoplastic polyurethane film of this utility model can simultaneously cool both ends of the film by conveying cold air through a pair of hollow rollers. This solves the problem of single-sided cooling in the prior art, which has a long heat transfer path and high thermal resistance, resulting in relatively low cooling efficiency. This is especially obvious when the film thickness is thick or the production speed is fast, which may lead to uneven film cooling.

[0016] 2. The cooling device for processing thermoplastic polyurethane film of this utility model allows for the adjustment of the angle of a pair of conical shells by a pair of second electric push rods, thereby enabling the position adjustment of a set of rotating rollers. This position adjustment of the rotating rollers allows the film to be tensioned according to its adaptability, ensuring that the film maintains consistent tension during processing and avoiding any impact on the processing. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the air conditioner in this utility model;

[0020] Figure 3 This is a schematic diagram of the first electric actuator in this utility model;

[0021] Figure 4 This is a cross-sectional view of the hollow roller in this utility model;

[0022] In the diagram: 1. Base plate; 2. Vertical plate; 3. Top plate; 4. Sliding groove; 5. Sliding block; 6. L-shaped tube; 7. Hollow roller; 8. Through hole; 9. Air conditioner; 10. T-shaped pipe; 11. First fixed block; 12. Second fixed block; 13. First electric actuator; 14. Conical shell; 15. Support rod; 16. Rotating roller; 17. First concave block; 18. Second electric actuator; 19. Second concave block. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 4 As shown in the embodiment of this utility model, a cooling device for processing thermoplastic polyurethane film includes a base plate 1, on which a cooling mechanism is provided. The cooling mechanism includes: a cooling assembly; a pair of upright plates 2 fixedly connected to the base plate 1; a top plate 3 fixedly connected to the top of the pair of upright plates 2; a pair of sliding grooves 4 opened on the upright plates 2; a sliding block 5 slidably connected in the sliding grooves 4; an L-shaped tube 6 fixedly connected to the side wall of the sliding block 5; a hollow roller 7 fixedly connected to the pair of L-shaped tubes 6; a set of through holes 8 opened on the hollow roller 7; a cold air conveying assembly for conveying cold air is provided at the top of the base plate 1 and the bottom of the top plate 3; and a tension adjustment assembly, which is provided on the pair of L-shaped tubes 6 for adjusting the film tension.

[0025] During operation, the cold air is conveyed through a pair of hollow rollers 7, which can cool both ends of the film at the same time. This solves the problem of single-sided cooling in the existing technology, which has a long heat transfer path and high thermal resistance, resulting in relatively low cooling efficiency. This is especially obvious when the film thickness is thick or the production speed is fast, which may lead to uneven film cooling.

[0026] The air delivery assembly includes a pair of air conditioners 9 fixedly connected to the top of the base plate 1 and the bottom of the top plate 3 respectively. The output end of the air conditioner 9 is provided with a three-way pipe 10, and the other two ends of the three-way pipe 10 are respectively slidably connected to one vertical end of a pair of L-shaped pipes 6.

[0027] During operation, cold air is supplied to the three-way pipe 10 through the air cooler 9, and then the cold air is delivered to the hollow roller 7 through the L-shaped pipe 6 at the other two ends of the three-way pipe 10, and the film is cooled through the through hole 8.

[0028] The three-way pipe 10 has a first fixing block 11 fixed to the outer circular wall at both vertical ends, and the L-shaped pipe 6 has a second fixing block 12 fixed to one vertical end. The bottom of the first fixing block 11 is fixed to a first electric push rod 13, and the telescopic end of the first electric push rod 13 is fixed to the top of the second fixing block 12.

[0029] During operation, the first electric push rod 13 can drive the L-shaped tube 6 to rise and fall, thereby allowing the hollow roller 7 to be adjusted. This allows the spacing between a pair of hollow rollers 7 to be adjusted, enabling it to adapt to films of different thicknesses and improving its adaptability.

[0030] The tension adjustment assembly includes a pair of L-shaped tubes 6 rotatably connected to a conical shell 14 at one end in the lateral direction. A set of support rods 15 are fixedly connected to the conical shell 14. A rotating roller 16 is rotatably connected between the opposite side walls of the pair of support rods 15 through a first rotating shaft.

[0031] The top of the base plate 1 and the bottom of the top plate 3 are both fixedly connected to a first concave block 17, and a second electric push rod 18 is rotatably connected between the opposite side walls of the first concave block 17 via a first rotating shaft.

[0032] A second concave block 19 is fixedly connected to the conical shell 14, and the telescopic end of the second electric push rod 18 is rotatably connected between the opposite side walls of the second concave block 19 via a second rotating shaft.

[0033] During operation, the angle of the pair of conical shells 14 can be adjusted by the pair of second electric actuators 18, which in turn allows the position of a set of rotating rollers 16 to be adjusted. This adjustment of the position of the set of rotating rollers 16 allows the film to be tensioned according to its adaptability, ensuring that the film remains consistently tensioned during processing and avoiding any impact on the processing.

[0034] Working principle: By conveying cold air through a pair of hollow rollers 7, both ends of the film can be cooled simultaneously. This solves the problem of single-sided cooling in the existing technology, which has a longer heat transfer path and higher thermal resistance, resulting in relatively low cooling efficiency. This is especially noticeable when the film is thick or the production speed is fast, which may lead to uneven film cooling.

[0035] By supplying cold air into the three-way pipe 10 through the air cooler 9, the cold air can be transported to the hollow roller 7 through the L-shaped pipe 6 at the other two ends of the three-way pipe 10, and the film is cooled through the through hole 8.

[0036] By setting the first electric push rod 13, the L-shaped tube 6 can be driven to rise and fall, thereby enabling the hollow roller 7 to be adjusted. This allows the spacing between a pair of hollow rollers 7 to be adjusted, making it adaptable to films of different thicknesses and improving its adaptability.

[0037] By adjusting the angle of a pair of conical shells 14 by a pair of second electric actuators 18, the position of a set of rotating rollers 16 can be adjusted. This adjustment of the position of the set of rotating rollers 16 allows the film to be tensioned according to its adaptability, ensuring that the film remains consistently tensioned during processing and avoiding any impact on the processing.

[0038] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling device for processing thermoplastic polyurethane films, comprising a base plate (1), characterized in that: A cooling mechanism is provided on the base plate (1), the cooling mechanism comprising: A cooling assembly consists of a pair of upright plates (2) fixed to a base plate (1), a top plate (3) fixed to the top of the pair of upright plates (2), a pair of sliding grooves (4) on the upright plates (2), a sliding block (5) slidably connected in the sliding grooves (4), an L-shaped tube (6) fixed to the side wall of the sliding block (5), a hollow roller (7) fixed to the pair of L-shaped tubes (6), a set of through holes (8) on the hollow roller (7), and a cooling air conveying assembly for conveying cooling air provided at the top of the base plate (1) and the bottom of the top plate (3). Tension adjustment components are provided on a pair of L-shaped tubes (6) for adjusting film tension.

2. The cooling device for processing thermoplastic polyurethane films according to claim 1, characterized in that: The cold air delivery assembly includes a pair of air conditioners (9) fixedly connected to the top of the base plate (1) and the bottom of the top plate (3). The output end of the air conditioner (9) is provided with a three-way pipe (10), and the other two ends of the three-way pipe (10) are respectively slidably connected to one vertical end of a pair of L-shaped pipes (6).

3. The cooling device for processing thermoplastic polyurethane films according to claim 2, characterized in that: The three-way pipe (10) has a first fixing block (11) fixed on the outer circular wall at both vertical ends, and the L-shaped pipe (6) has a second fixing block (12) fixed on one vertical end. The bottom of the first fixing block (11) has a first electric push rod (13) fixed, and the telescopic end of the first electric push rod (13) is fixed to the top of the second fixing block (12).

4. The cooling device for processing thermoplastic polyurethane films according to claim 1, characterized in that: The tension adjustment assembly includes a pair of L-shaped tubes (6) rotatably connected to a conical shell (14) at one end of the lateral direction. A set of support rods (15) is fixedly connected to the conical shell (14). A rotating roller (16) is rotatably connected between the opposite side walls of the pair of support rods (15) through a first rotating shaft.

5. A cooling device for processing thermoplastic polyurethane films according to claim 4, characterized in that: The top of the base plate (1) and the bottom of the top plate (3) are both fixedly connected to a first concave block (17), and a second electric push rod (18) is rotatably connected between the opposite side walls of the first concave block (17) through a first rotating shaft.

6. A cooling device for processing thermoplastic polyurethane films according to claim 5, characterized in that: A second concave block (19) is fixedly connected to the conical shell (14), and the telescopic end of the second electric push rod (18) is rotatably connected between the opposite side walls of the second concave block (19) through the second rotating shaft.

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