A synthetic leather cooling and shaping machine

Abstract

This utility model discloses a synthetic leather cooling and shaping machine, including an upper frame and a lower frame, with a circulating cooling assembly installed between the upper and lower frames. Through the design of the circulating cooling assembly, this utility model enables the semiconductor cooling chip and temperature sensor to actively regulate the cooling of the cold water medium during the cooling process. Combined with a circulating water pump driving the cold water medium to circulate, this ensures the cooling medium is efficiently circulated and used for cooling and shaping at a suitable temperature, avoiding water waste. Furthermore, by adding a serpentine heat exchange tube, heat is exchanged with the heat transfer oil and other heat exchange media flowing through the heat exchange shell. The heat dissipated from the synthetic leather within the cooling medium is collected and used to preheat the base fabric or coating liquid in the preceding synthetic leather process, avoiding heat waste. The pre-heat exchange cooling process also reduces the cooling pressure on the cold water medium from the semiconductor cooling chip.

Description

Technical Field

[0001] This utility model relates to the field of articulated plate production technology, and in particular to a synthetic leather cooling and shaping machine. Background Technology

[0002] Synthetic leather is typically made by using impregnated nonwoven fabric as the mesh layer and a microporous polyurethane layer as the grain layer. Due to its advantages such as high strength, wear resistance, cold resistance, breathability, aging resistance, and soft texture, synthetic leather is widely used in footwear, clothing, bags, sofas, furniture, automotive interiors, balls, and other sporting goods. When the synthetic leather cooling and shaping machine is working, it uses controlled cooling media such as cold air and cold water to conduct efficient heat exchange with the high-temperature synthetic leather, quickly removing heat and causing the polyurethane coating molecules to solidify and shape rapidly, thus achieving the effect of controlling the product's form and performance. Current synthetic leather cooling and setting machines often use open cooling systems, typically employing continuous water flow to flush the cooling pipes. Consequently, the cooling medium used often lacks a recycling structure, leading to the direct discharge of used cold water, resulting in waste and pollution. Therefore, a new type of synthetic leather cooling and setting machine needs to be designed. Utility Model Content

[0003] The purpose of this invention is to provide a synthetic leather cooling and shaping machine to solve the defects of existing cooling media that cannot be recycled, resulting in resource waste and thermal pollution.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a synthetic leather cooling and shaping machine, including an upper frame and a lower frame; A circulating cooling assembly is installed between the upper frame and the lower frame, and the circulating cooling assembly includes a liquid supply guide plate and a return guide plate symmetrically fixed between the upper frame and the lower frame, and cooling shaping pipes are uniformly connected between the liquid supply guide plate and the return guide plate. A cold water supply pipe is connected to the liquid supply guide plate, a return pipe is connected to the return guide plate, a ceramic fiber heat insulation cover is fixed to the outer wall of the lower frame, and a cold water box is installed inside the ceramic fiber heat insulation cover. A circulating water pump is installed between the cold water supply pipe and the return pipe and the cold water box respectively. The inner wall of the cold water box is sequentially fixed with a semiconductor cooling chip and a temperature sensor; The lower frame is fixed with a heat exchange shell on its outer wall, and a serpentine heat exchange tube connected to the liquid supply guide plate and the return guide plate is fixed inside the heat exchange shell.

[0005] Furthermore, the cooling and shaping tube has a hollow water cavity inside, and heat exchange fins are uniformly welded to the inner wall of the hollow water cavity near the cold water supply pipe. The heat exchange fins increase the heat exchange area between the surface of the cooling and shaping tube in contact with the synthetic leather and the cooling medium, thereby improving the cooling and shaping effect.

[0006] Furthermore, the two ends of the cooling and shaping tube extend into the interior of the liquid supply guide plate and the return guide plate, respectively. There are two sets of cooling and shaping tubes arranged at equal intervals between the liquid supply guide plate and the return guide plate, and each set of cooling and shaping tubes has 5 tubes. The two sets of cooling and shaping tubes distributed symmetrically can simultaneously cool and shape the upper and lower surfaces of the synthetic leather, thereby improving processing efficiency.

[0007] Furthermore, the semiconductor cooling chip includes a cooling surface embedded inside the cold water box and a heating surface exposed outside the cold water box.

[0008] Furthermore, the outer wall of the ceramic fiber heat insulation cover is equipped with a fan that matches the heating surface of the semiconductor refrigeration chip via buffer feet, and the outer wall of the fan is equipped with an air inlet mesh plate via screws. The fan provides air cooling to the heating surface of the semiconductor refrigeration chip, which can protect the cooling surface of the semiconductor refrigeration chip.

[0009] Furthermore, the outer wall of the buffer support is vulcanized with a rubber buffer layer, and the ceramic fiber heat insulation cover and the fan are connected to the buffer support by screws to form a disassembly and installation structure.

[0010] Furthermore, both ends of the upper and lower frames are connected to guide rollers and feeding rollers via bearings, and a stepper motor is installed on one side of the feeding roller. The rotation of the feeding roller can push the synthetic leather product forward, and continuous processing is achieved through automatic feeding.

[0011] Furthermore, both ends of the heat exchange shell are provided with heat exchange medium reserved pipes, and the inner sidewall of the heat exchange medium reserved pipe is provided with an internal thread layer. The heat exchange medium reserved pipe with the internal thread layer is convenient for external heat exchange recovery pipelines.

[0012] The advantages of the synthetic leather cooling and shaping machine provided by this utility model are as follows: The design of the circulating cooling components enables the semiconductor cooling chip and temperature sensor to actively regulate the cooling of the cold water medium during the cooling process. Combined with the circulating water pump, the cold water medium is circulated, ensuring that it is efficiently circulated and cooled at a suitable temperature, avoiding water waste. Furthermore, considering that the pre-processes of synthetic leather, such as wet molding and dry coating, require the base fabric or coating liquid to be preheated to 30-50°C to improve the processing effect, a serpentine heat exchange tube is installed to exchange heat with the heat transfer oil and other heat exchange media flowing through the heat exchange shell. The heat dissipated from the synthetic leather in the cooling medium is collected and used to preheat the base fabric or coating liquid, avoiding heat waste. The pre-heat exchange cooling process also reduces the cooling pressure on the cold water medium returning to the cold water box from the semiconductor cooling chip, making more efficient use of energy and heat exchange media. By incorporating cooling and shaping tubes, two sets of symmetrically distributed cooling and shaping tubes can simultaneously cool and shape the top and bottom surfaces of the synthetic leather. Each set of five cooling and shaping tubes can achieve continuous relay heat exchange, extending the effective heat exchange time and improving cooling uniformity and shaping stability. Furthermore, the segmented design distributes the total pressure to multiple contact points, ensuring cooling efficiency while reducing tension fluctuations during conveying and preventing the synthetic leather product from stretching and deforming. In addition, the stepper motor starts the feeding roller to rotate, which can automatically convey the synthetic leather product forward, facilitating continuous processing of flexible roll products. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional sectional structural diagram of the present invention; Figure 4 This is a three-dimensional cross-sectional structural diagram of the ceramic fiber heat insulation cover of this utility model; Figure 5 This is a three-dimensional structural diagram of the cooling shaping tube of this utility model.

[0014] The following are the annotations in the diagram: 1. Guide roller; 2. Feed roller; 3. Circulating cooling assembly; 301. Liquid supply guide plate; 302. Cooling shaping tube; 303. Ceramic fiber heat insulation cover; 304. Fan; 305. Semiconductor refrigeration chip; 306. Cold water supply pipe; 307. Circulating water pump; 308. Return pipe fitting; 309. Cold water box; 310. Temperature sensor; 311. Return guide plate; 4. Upper frame; 5. Lower frame; 6. Heat exchange medium reserved pipe; 7. Heat exchange shell; 8. Serpentine heat exchange tube; 9. Stepper motor; 10. Buffer support; 11. Air inlet mesh plate; 12. Heat exchange fins; 13. Hollow water cavity. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-5 The present invention provides a synthetic leather cooling and shaping machine, which includes an upper frame 4 and a lower frame 5.

[0017] Reference Figures 1-5 A circulating cooling assembly 3 is installed between the upper frame 4 and the lower frame 5. The circulating cooling assembly 3 includes a liquid supply guide plate 301 and a return guide plate 311 symmetrically fixed between the upper frame 4 and the lower frame 5. Cooling shaping pipes 302 are uniformly connected between the liquid supply guide plate 301 and the return guide plate 311. A cold water supply pipe 306 is connected to the liquid supply guide plate 301, and a return pipe fitting 308 is connected to the return guide plate 311. A ceramic fiber heat insulation cover 303 is fixed to the outer wall of the lower frame 5, and a cold water box 309 is installed inside the ceramic fiber heat insulation cover 303. A circulating water pump 307 is installed between the cold water supply pipe 306 and the return pipe fitting 308 and the cold water box 309, respectively. The two ends of the cooling and shaping tube 302 extend into the interior of the liquid supply guide plate 301 and the return guide plate 311, respectively. There are two sets of cooling and shaping tubes 302 arranged at equal intervals between the liquid supply guide plate 301 and the return guide plate 311, and each set of cooling and shaping tubes 302 has 5 tubes. The two sets of cooling and shaping tubes 302, which are symmetrically distributed, can simultaneously cool and shape the upper and lower surfaces of the synthetic leather, thereby improving the processing efficiency.

[0018] During cooling and shaping, the synthetic leather product is fed between two sets of cooling and shaping tubes 302 symmetrically distributed between the upper frame 4 and the lower frame 5. As the synthetic leather product is conveyed forward, its upper and lower surfaces will sequentially contact the five cooling and shaping tubes 302 of the upper set and the five cooling and shaping tubes 302 of the lower set. This allows for simultaneous cooling and shaping of both the upper and lower surfaces of the synthetic leather. Furthermore, since synthetic leather is often a continuously moving flexible roll during cooling and shaping, its surface may have slight undulations. The structure of the arc-shaped tubes can precisely adapt to this shape. The five cooling and shaping tubes 302 can also achieve continuous relay heat exchange, extending the effective heat exchange time, improving cooling uniformity and shaping stability. In addition, the segmented design distributes the total pressure to multiple contact points. Multi-faceted contact ensures cooling efficiency while reducing tension fluctuations during the conveying process and preventing the synthetic leather product from stretching and deforming.

[0019] Reference Figures 1-4 The outer wall of the lower frame 5 is fixed with a heat exchange shell 7, and the heat exchange shell 7 is fixed with a serpentine heat exchange tube 8 that is connected to the liquid supply guide plate 301 and the return guide plate 311. The cooling and shaping tube 302 is provided with a hollow water cavity 13, and heat exchange fins 12 are uniformly welded on the inner wall of the hollow water cavity 13 near the cold water supply tube 306. The heat exchange fins 12 increase the heat exchange area between the surface of the cooling and shaping tube 302 in contact with the synthetic leather and the cooling medium, thereby improving the cooling and shaping effect. A thermoelectric cooler 305 and a temperature sensor 310 are sequentially fixed to the inner wall of the cold water box 309. The thermoelectric cooler 305 includes a cooling surface embedded inside the cold water box 309 and a heating surface exposed outside the cold water box 309. A fan 304 matching the heating surface of the thermoelectric cooler 305 is installed on the outer wall of the ceramic fiber heat shield 303 through a buffer support 10. An air inlet mesh plate 11 is installed on the outer wall of the fan 304 through screws. The fan 304 provides air cooling to the heating surface of the thermoelectric cooler 305, which can protect the cooling surface of the thermoelectric cooler 305. The outer wall of the buffer leg 10 is vulcanized with a rubber buffer layer. The ceramic fiber heat insulation cover 303 and the fan 304 are connected to the buffer leg 10 by screws to form a disassembly and installation structure. Both ends of the heat exchange shell 7 are provided with heat exchange medium reserved pipes 6, and the inner side wall of the heat exchange medium reserved pipe 6 is provided with an internal thread layer. The heat exchange medium reserved pipe 6 with the internal thread layer is convenient for external heat exchange and recovery pipelines.

[0020] With an external power supply and control equipment, during the cooling process, the semiconductor cooling chip 305 is energized, and its cooling surface cools the cold water medium inside the cold water box 309. The temperature sensor 310 can monitor and provide real-time temperature data, facilitating the external controller to adjust the operating temperature of the cold water medium. When the preset value is reached, the circulating water pump 307 starts, driving the cold water through the cold water supply pipe 306 and the cooling and shaping pipe 302 to perform heat exchange and cooling on the synthetic leather product. Then, through the return pipe 308 and the serpentine heat exchange pipe 8, the water flows back into the cold water box 309 for further cooling before the next cooling and shaping process. This self-cooling mechanism... This allows the cooling medium to be recycled, avoiding water waste. Furthermore, considering that the pre-processes of synthetic leather, such as wet molding and dry coating, require the base fabric or coating liquid to be preheated to 30-50°C to improve the processing effect, in order to address the situation where the temperature of the cold water medium rises after one heat exchange, a serpentine heat exchange tube 8 is added to exchange heat with the heat transfer oil and other heat exchange medium flowing through the heat exchange shell 7. The heat displaced by the synthetic leather inside the cooling medium is collected and used to preheat the base fabric or coating liquid, avoiding heat waste. The pre-heat exchange cooling process also reduces the cooling pressure of the semiconductor cooling chip 305 on the cold water medium returning to the cold water box 309. Reference Figures 1-3 Both ends of the upper frame 4 and the lower frame 5 are respectively connected to the guide roller 1 and the feeding roller 2 via bearings, and a stepper motor 9 is installed on one side of the feeding roller 2.

[0021] When an external power source is connected, the stepper motor 9 starts, driving the two feeding rollers 2 distributed at both ends of the device to rotate. This can push the synthetic leather products that pass through the gap between the two sets of feeding rollers 2 and the guide roller 1 forward, facilitating the automated and continuous cooling and shaping of the flexible roll synthetic leather products through the cooling and shaping structure, thus realizing continuous processing.

[0022] 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 synthetic leather cooling and shaping machine, comprising an upper frame (4) and a lower frame (5); characterized in that: A circulating cooling assembly (3) is installed between the upper frame (4) and the lower frame (5), and the circulating cooling assembly (3) includes a liquid supply guide plate (301) and a return guide plate (311) symmetrically fixed between the upper frame (4) and the lower frame (5). Cooling shaping pipes (302) are uniformly connected between the liquid supply guide plate (301) and the return guide plate (311). A cold water supply pipe (306) is connected to the liquid supply guide plate (301), and a return pipe fitting (308) is connected to the return guide plate (311). A ceramic plate is fixed to the outer wall of the lower frame (5). A fiber heat shield (303) is provided, and a cold water box (309) is installed inside the ceramic fiber heat shield (303). A circulating water pump (307) is installed between the cold water supply pipe (306) and the return pipe (308) and the cold water box (309). A semiconductor cooling chip (305) and a temperature sensor (310) are fixed in sequence on the inner wall of the cold water box (309). A heat exchange shell (7) is fixed on the outer wall of the lower frame (5), and a serpentine heat exchange tube (8) connected to the liquid supply guide plate (301) and the return guide plate (311) is fixed inside the heat exchange shell (7).

2. The synthetic leather cooling and shaping machine according to claim 1, characterized in that: The cooling shaping tube (302) has a hollow water cavity (13) inside, and heat exchange fins (12) are uniformly welded on the inner wall of the hollow water cavity (13) near the cold water supply pipe (306).

3. The synthetic leather cooling and shaping machine according to claim 1, characterized in that: The two ends of the cooling shaping tube (302) extend into the interior of the liquid supply guide plate (301) and the return guide plate (311), respectively. The cooling shaping tube (302) is provided in two sets of upper and lower groups arranged at equal intervals between the liquid supply guide plate (301) and the return guide plate (311), and each set of cooling shaping tubes (302) is provided with 5 tubes.

4. A synthetic leather cooling and shaping machine according to claim 1, characterized in that: The semiconductor cooling chip (305) includes a cooling surface embedded inside the cold water box (309) and a heating surface exposed outside the cold water box (309).

5. A synthetic leather cooling and shaping machine according to claim 4, characterized in that: The outer wall of the ceramic fiber heat insulation cover (303) is fitted with a fan (304) that matches the heating surface of the semiconductor cooling chip (305) via a buffer support (10), and the outer wall of the fan (304) is fitted with an air inlet mesh plate (11) via screws.

6. A synthetic leather cooling and setting machine according to claim 5, characterized in that: The outer wall of the buffer support (10) is vulcanized with a rubber buffer layer, and the ceramic fiber heat insulation cover (303) and the fan (304) are connected to the buffer support (10) by screws to form a disassembly and installation structure.

7. A synthetic leather cooling and shaping machine according to claim 1, characterized in that: The upper frame (4) and the lower frame (5) are respectively connected to the guide roller (1) and the feed roller (2) by bearings at both ends, and a stepper motor (9) is installed on one side of the feed roller (2).

8. A synthetic leather cooling and shaping machine according to claim 1, characterized in that: Both ends of the heat exchange shell (7) are provided with heat exchange medium reserved pipes (6), and the inner sidewall of the heat exchange medium reserved pipes (6) is provided with an internal thread layer.

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