Air cooling equipment for decorative film production

Abstract

The utility model relates to the field of decorative film production equipment, in particular to air cooling equipment for decorative film production, which comprises a frame, a decorative film and a fan, a cold water tank is arranged on the inner side of the frame, cold water is contained in the inner side of the cold water tank, the fan is mounted at the side end of the frame, and an air inlet pipe is connected between the output end of the fan and the cold water tank. The end, located on the inner side of the cold water tank, of the air inlet pipe extends to the lower side of the cold water level, a flow uniformizing cover is installed on the inner side of the rack, an air outlet pipe is connected between the flow uniformizing cover and the cold water tank, the end, located on the inner side of the cold water tank, of the air outlet pipe extends to the upper side of the cold water level, the cold water tank is a heat conductor, and the decorative film makes contact with the cold water tank. By the adoption of the structure, after airflow sucked in by the draught fan passes through cold water on the inner side of the cold water tank, on one hand, impurities in the airflow are filtered through water, on the other hand, the temperature of the airflow is reduced through the cold water, and it is guaranteed that the airflow blown out of the air outlet pipe can have a better air cooling effect on the decorative film.

Description

Technical Field

[0001] This utility model relates to an air-cooled cooling device for decorative film production, and more particularly to an air-cooled cooling device for decorative film production applied in the field of decorative film production equipment. Background Technology

[0002] Decorative film is a decorative material made from high molecular polymers (such as PVC) through a calendering and lamination process. In the production of decorative film, the cooling process is crucial, as it directly affects the film's physical properties and appearance quality.

[0003] A search revealed, for example, a cooling device for a PVC decorative film disclosed in patent publication number CN213563858U. This device includes a fixed frame, an on / off spray head, a water tank, and a cooling fan. A transmission structure is located at the bottom of the fixed frame, and the water tank is fixedly connected to the top of the fixed frame. A single-stage water pump is fixedly connected to the top of the water tank, and an on / off spray head is fixedly connected to one side of the single-stage water pump. A cooling fan is fixedly connected to one side of the water tank, and a filter press mechanism is fixedly connected to one side of the cooling fan. By spraying liquid water onto the film and then applying air cooling, the cooling effect is accelerated.

[0004] Based on the above search and combined with the existing technology, it was found that the cooling equipment for decorative films disclosed above does not filter the air-cooled airflow, resulting in dust and other impurities carried in the airflow contaminating the surface of the decorative film after spraying, increasing the burden of subsequent related operations. Therefore, an air-cooled cooling equipment for decorative film production is proposed to improve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing decorative film cooling equipment does not filter the air-cooled airflow, resulting in dust and other impurities carried in the airflow contaminating the surface of the decorative film after spraying, which increases the burden of subsequent related operations.

[0006] To solve the above problems, this utility model provides an air-cooled cooling device for decorative film production, including a frame, a decorative film and a fan, and a cold water tank is provided inside the frame, with cold water contained inside the cold water tank.

[0007] The fan is installed on the side of the frame. An air inlet pipe is connected between the output end of the fan and the cold water tank. The end of the air inlet pipe located inside the cold water tank extends to the lower side of the cold water liquid surface.

[0008] A flow equalizer is installed on the inside of the frame. An air outlet pipe is connected between the flow equalizer and the cold water tank. The end of the air outlet pipe located inside the cold water tank extends to the upper part of the cold water liquid surface.

[0009] The cold water tank is a heat conductor, and the decorative film is in contact with the cold water tank.

[0010] In the aforementioned air-cooled cooling equipment for decorative film production, the airflow drawn in by the fan passes through the cold water inside the cold water tank. On the one hand, the water filters impurities in the airflow, and on the other hand, the cold water lowers the temperature of the airflow, ensuring that the airflow blown out from the air outlet can provide better air cooling for the decorative film.

[0011] As a further improvement of this application, two flow equalization hoods are provided, and the two flow equalization hoods are located on both sides of the decorative film respectively, so as to realize synchronous air cooling on both sides of the decorative film, making the cooling of the decorative film more uniform and less prone to deformation due to temperature difference on both sides.

[0012] As a further improvement of this application, both flow equalizers are inclined toward the beginning of the delivery of the decorative film. The inclined flow equalizers cause the airflow to blow toward the beginning of the delivery of the decorative film, and the temperature of the airflow gradually increases along its blowing direction, which can achieve gradual cooling of the decorative film and better cooling quality.

[0013] As a further improvement of this application, two cold water tanks are provided, and both cold water tanks are cylindrical. Both cold water tanks are rotatably installed on the inside of the frame, and the air inlet pipe and air outlet pipe are rotatably installed on the axis of the cold water tanks in a sealed manner.

[0014] The decorative film passes around two cold water tanks in sequence. A drive assembly is installed on the side of the frame to drive the two cold water tanks to rotate in opposite directions. The rotation speed of the cold water tanks driven by the drive assembly is consistent with the conveying speed of the decorative film. The cylindrical cold water tanks can increase the contact area between the cold water tanks and the decorative film, thereby improving the cooling effect. The rotating cold water tanks are less likely to obstruct the conveying of the decorative film and are less likely to damage the decorative film.

[0015] As a further improvement of this application, the drive assembly includes a drive motor, a rotating shaft, a first transmission gear, and a second transmission gear;

[0016] The drive motor is mounted on the side of the frame, and the rotating shaft is rotatably mounted on the inside of the frame. One end of the rotating shaft is coaxially fixed with the output end of the drive motor, and the first transmission gear is coaxially fixed on the rotating shaft.

[0017] Two second transmission gears are fixedly sleeved on the side ends of two cold water tanks, and one of the second transmission gears meshes with the first transmission gear, and the two second transmission gears mesh with each other.

[0018] As a further improvement of this application, an aeration net is provided on the inner side of the cold water tank. The aeration net is fixed between the air inlet pipe and the air outlet pipe, and the aeration net is submerged below the surface of the cold water. The aeration net can cut and disperse the air bubbles, increase the contact area between the air and the water, and thus improve the filtration and cooling effect of the cold water on the airflow.

[0019] As a further improvement of this application, a scraper is fixed at the upper end of the aeration net, and the scraper slides and fits against the inner side of the cold water tank; the scraper can scrape off the water stains attached to the inner wall of the cold water tank, reducing the water carried away by the cold water tank during rotation and blown out to the surface of the decorative film with the airflow.

[0020] In summary, after the airflow drawn in by the fan passes through the cold water inside the cold water tank, the water filters impurities from the airflow and lowers its temperature, ensuring that the airflow blowing out from the air outlet can better cool the decorative film. Furthermore, the inclined flow equalizer directs the airflow towards the beginning of the decorative film's transport, and the airflow temperature gradually increases along its blowing direction, achieving gradual cooling of the decorative film and resulting in better cooling quality. After being cooled, the decorative film passes through the two cylindrical cold water tanks, extending the cooling path and also reshaping the film, further improving the cooling effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the first embodiment of this application;

[0022] Figure 2 This is a three-dimensional structural diagram of the first embodiment of this application with the frame and decorative film concealed.

[0023] Figure 3 This is a partial cross-sectional structural diagram of the first embodiment of this application;

[0024] Figure 4 This is a schematic cross-sectional view of the cold water tank in the first embodiment of this application.

[0025] Explanation of the labels in the diagram:

[0026] 1. Frame, 2. Decorative film, 3. Fan, 4. Air inlet pipe, 5. Cold water tank, 6. Air outlet pipe, 7. Flow equalization hood, 8. Aeration net, 9. Drive motor, 10. Rotating shaft, 11. First transmission gear, 12. Second transmission gear, 13. Scraper blade. Detailed Implementation

[0027] The following describes one embodiment of this application in detail with reference to the accompanying drawings.

[0028] Implementation method 1:

[0029] Figure 1-4 The diagram shows an air-cooled cooling device for producing decorative film, including a frame 1, a decorative film 2, and a fan 3. A cold water tank 5 is provided inside the frame 1, and the inside of the cold water tank 5 is filled with cold water.

[0030] Among them, the fan 3 is installed on the side of the frame 1. The output end of the fan 3 is connected to the cold water tank 5 by an air inlet pipe 4. The end of the air inlet pipe 4 located inside the cold water tank 5 extends to the lower side of the cold water liquid surface. A flow equalization hood 7 is installed on the inner side of the frame 1. The flow equalization hood 7 is connected to the cold water tank 5 by an air outlet pipe 6. The end of the air outlet pipe 6 located inside the cold water tank 5 extends to the upper side of the cold water liquid surface.

[0031] The air-cooled cooling equipment for producing decorative film immerses the end of the air inlet pipe 4 in cold water. After the airflow drawn in by the fan 3 passes through the cold water inside the cold water tank 5, the water filters impurities in the airflow and lowers the temperature of the airflow, ensuring that the airflow blown out from the air outlet pipe 6 can better cool the decorative film 2.

[0032] Of course, in order to ensure the water temperature in the cold water tank 5 is stable on a continuous production line, circulating water pipes (not shown in the figure) can be installed at both ends of the axis of the cold water tank 5. The circulating water pipes pass through the air inlet pipe 4 and the air outlet pipe 6 respectively, and the outer diameter of the circulating pipe is smaller than the inner diameter of the air inlet pipe 4 and the air outlet pipe 6, so that it is not easy to affect the stability of the air inlet and outlet. Conventional refrigeration equipment is connected between the two circulating water pipes, so that the cold water in the cold water tank 5 is kept at a constant temperature.

[0033] There are two uniform flow hoods 7, and the two uniform flow hoods 7 are located on both sides of the decorative film 2 respectively, so as to realize synchronous air cooling on both sides of the decorative film 2, making the decorative film 2 cool more evenly and less prone to deformation due to temperature difference on both sides.

[0034] Regarding the orientation of the flow equalizer 7, unlike the conventional setting, both flow equalizers 7 are tilted towards the beginning of the conveying of the decorative film 2. The tilted flow equalizer 7 causes the airflow to blow towards the beginning of the conveying of the decorative film 2, and the temperature of the airflow gradually increases along its blowing direction, which can achieve gradual cooling of the decorative film 2 and better cooling quality.

[0035] In addition, the cold water tank 5 is made of conventional heat-conducting material, such as a copper shell. The decorative film 2 is in contact with the cold water tank 5. There are two cold water tanks 5, and both cold water tanks 5 are cylindrical. Both cold water tanks 5 are rotatably mounted on the inner side of the frame 1. The air inlet pipe 4 and the air outlet pipe 6 are rotatably mounted on the axis of the cold water tank 5. The decorative film 2 passes around the two cold water tanks 5 in sequence. The side end of the frame 1 is equipped with a drive assembly that drives the two cold water tanks 5 to rotate in opposite directions. The rotation speed of the cold water tanks 5 driven by the drive assembly is consistent with the conveying speed of the decorative film 2.

[0036] Regarding the aforementioned drive assembly, specifically, the drive assembly includes a drive motor 9, a rotating shaft 10, a first transmission gear 11, and a second transmission gear 12. The drive motor 9 is mounted on the side end of the frame 1, the rotating shaft 10 is rotatably mounted on the inner side of the frame 1, and one end of the rotating shaft 10 is coaxially fixed with the output end of the drive motor 9. The first transmission gear 11 is coaxially fixed on the rotating shaft 10, and the two second transmission gears 12 are respectively fixedly sleeved on the side ends of the two cold water tanks 5, and one of the second transmission gears 12 meshes with the first transmission gear 11, and the two second transmission gears 12 mesh with each other.

[0037] Based on the above-mentioned arrangement of the cold water tank 5 and the drive assembly, the cylindrical cold water tank 5 can increase the contact area between itself and the decorative film 2, thereby improving the cooling effect. Furthermore, the rotating cold water tank 5 is less likely to obstruct the transport of the decorative film 2 and is less likely to damage the decorative film 2.

[0038] The cold water tank 5 is equipped with an aeration net 8 on its inner side. The aeration net 8 is fixed between the air inlet pipe 4 and the air outlet pipe 6, and the aeration net 8 is submerged below the surface of the cold water.

[0039] The aeration net 8 described above can cut and disperse air bubbles, increasing the contact area between air and water, thereby improving the filtration and cooling effect of cold water on the airflow.

[0040] In addition, a squeegee 13 is fixed at the upper end of the aeration net 8. The squeegee 13 slides and fits against the inner side of the cold water tank 5. The squeegee 13 can remove water stains adhering to the inner wall of the cold water tank 5, reducing the water carried away by the cold water tank 5 during rotation and blown out to the surface of the decorative film 2 with the airflow. The squeegee 13 is made of conventional rubber material, which has a better squeegee effect.

[0041] Working principle: The airflow drawn in by the fan 3 passes through the cold water inside the cold water tank 5, where the water filters impurities from the airflow and lowers its temperature. The aeration net 8 in the water cuts and disperses the air bubbles, increasing the contact area between the air and water, thereby improving the filtration and cooling effect of the cold water on the airflow. This ensures that the airflow blown out from the air outlet 6 can better cool the decorative film 2. The inclined uniform flow hood 7 directs the airflow toward the beginning of the delivery of the decorative film 2, and the temperature of the airflow gradually increases along its blowing direction, which can gradually cool the decorative film 2. After being cooled by the air, the decorative film 2 passes around the two cylindrical cold water tanks 5 in sequence, extending the cooling path and also having a shaping effect on the decorative film 2.

[0042] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A wind-cooled cooling device for producing decorative film, comprising a frame (1), a decorative film (2), and a fan (3), characterized in that: A cold water tank (5) is provided on the inner side of the frame (1), and the inner side of the cold water tank (5) is filled with cold water; The fan (3) is installed on the side of the frame (1). The output end of the fan (3) is connected to the cold water tank (5) by an air inlet pipe (4). The end of the air inlet pipe (4) located inside the cold water tank (5) extends to the lower side of the cold water liquid surface. A flow equalizer (7) is installed on the inner side of the frame (1). An air outlet pipe (6) is connected between the flow equalizer (7) and the cold water tank (5). The end of the air outlet pipe (6) located inside the cold water tank (5) extends to the upper side of the cold water liquid surface. The cold water tank (5) is a heat conductor, and the decorative film (2) is in contact with the cold water tank (5).

2. The air-cooled cooling equipment for decorative film production according to claim 1, characterized in that: Two flow equalizers (7) are provided, and the two flow equalizers (7) are located on both sides of the decorative film (2).

3. The air-cooled cooling equipment for decorative film production according to claim 2, characterized in that: Both of the flow equalizers (7) are inclined toward the beginning of the conveying of the decorative film (2).

4. The air-cooled cooling equipment for decorative film production according to claim 2, characterized in that: There are two cold water tanks (5), and both cold water tanks (5) are cylindrical. Both cold water tanks (5) are rotatably installed on the inner side of the frame (1). The air inlet pipe (4) and the air outlet pipe (6) are rotatably installed on the axis of the cold water tank (5). The decorative film (2) passes around the two cold water tanks (5) in sequence. The side end of the frame (1) is equipped with a drive assembly that drives the two cold water tanks (5) to rotate in opposite directions. The rotation speed of the cold water tanks (5) driven by the drive assembly is consistent with the conveying speed of the decorative film (2).

5. The air-cooled cooling equipment for decorative film production according to claim 4, characterized in that: The drive assembly includes a drive motor (9), a rotating shaft (10), a first transmission gear (11), and a second transmission gear (12). The drive motor (9) is installed on the side of the frame (1), the rotating shaft (10) is rotatably installed on the inner side of the frame (1), and one end of the rotating shaft (10) is coaxially fixed with the output end of the drive motor (9). The first transmission gear (11) is coaxially fixed on the rotating shaft (10). Two second transmission gears (12) are fixedly sleeved on the side ends of two cold water tanks (5), and one of the second transmission gears (12) meshes with the first transmission gear (11), and the two second transmission gears (12) mesh with each other.

6. The air-cooled cooling equipment for decorative film production according to claim 4, characterized in that: An aeration net (8) is provided on the inner side of the cold water tank (5). The aeration net (8) is fixed between the air inlet pipe (4) and the air outlet pipe (6), and the aeration net (8) is submerged below the surface of the cold water.

7. The air-cooled cooling equipment for decorative film production according to claim 6, characterized in that: The upper end of the aeration net (8) is fixed with a scraper (13), which slides against the inner side of the cold water tank (5).

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