Film cooling method and device

Abstract

The invention provides a film cooling method and device. The film cooling method comprises the following steps that a film is subjected to primary cooling and smoke reduction through a quenching water tank; the film is cooled and smoke is removed again through the double-layer water tank; the surface of the film is dip-coated with an isolating agent through an isolating agent groove; the film is lifted through climbing to be cooled again; the rubber sheet is dried through a quick-heating air box; and the film is cooled and dried through the cooling air bellow. The water tank is adopted to eliminate delay, so that environmental protection of a workshop is facilitated, and harm to the body of an operator is reduced. In addition, the temperature of the film can be reduced by increasing a large amount of water vapor generated by evaporation during climbing, then the film is dried through the quick-heating air box, the temperature of the film can be greatly reduced, and finally the film is cooled and dried through the cooling air box. Through the cooperation of the quick-heating air box and the cooling air box, the cooling and drying effect of the rubber sheet is improved, the space length required by cooling and drying the rubber sheet can be greatly reduced, and the layout of a rubber cooling production line is shortened.

Description

Technical Field

[0001] This application relates to the field of film technology, and in particular to a film cooling method and apparatus. Background Technology

[0002] In the mixing process of rubber tire and product factories, the traditional process is that after the rubber compound is mixed and pressed into sheets, it first passes through a release agent tank to pre-cool the sheets and is then coated with a release agent to prevent the sheets from sticking together. Then it enters a bellows to cool and dry, and finally it is stacked into trays, transported and stored, and supplied to the next process.

[0003] During this process, although the film is soaked in a release agent, seasonal changes and inspections at the stacking point reveal that the film temperature is too high and the dryness is too low, making it difficult to meet process requirements. Existing technologies, in an attempt to address film cooling, add a water tank before the release agent, but the large temperature fluctuations in the water within the tank result in excessively high glue temperatures or incomplete film drying, failing to meet production requirements. Furthermore, compared to traditional cooling methods, the length of the air box remains unchanged, which does not align with the current trend in factories towards large-capacity production lines and compact mixing layouts. Summary of the Invention

[0004] The purpose of this invention is to provide a film cooling method to improve the film cooling effect.

[0005] This application provides a film cooling method, which includes the following steps: The film is initially cooled and smoke is reduced by using a rapid cooling water bath; The film is cooled and smoke-removed again by a double-layer water tank; The surface of the film is coated with a release agent through a release agent tank; The film is cooled again by climbing uphill; The film is dried using a rapid-heating air box; The film is cooled and dried using a cooling fan box.

[0006] In the above technical solution, using a water tank to eliminate delays is beneficial to the environmental protection of the workshop and reduces health hazards to operators. Furthermore, by increasing the evaporation volume of water vapor during the incline, the temperature of the film can be reduced. The rapid heating air box further drastically lowers the film temperature, and finally, a cooling air box further cools and dries the film. The combination of the rapid heating and cooling air boxes improves the film cooling and drying effect and significantly reduces the space required for cooling and drying the film, shortening the layout of the adhesive cooling production line.

[0007] In one specific implementation scheme, the temperature of the quench water tank and the double-layer water tank is 40℃~60℃; The length of the quench water tank is between 1 and 2 meters; the length of the double-layer water tank is between 10 and 20 meters.

[0008] In one specific implementation, the step of further cooling the film by climbing the slope to raise the film specifically includes: The film is transported by an inclined conveyor belt; The moisture generated by the film is extracted by a ventilation system installed at the discharge end of the inclined conveyor belt.

[0009] In one specific implementation, the drying of the film using a rapid-heating air box specifically includes: The film is suspended in a wave-like shape and moved within the rapid heating box; The film is dried by high-temperature hot air in the rapid heating box, and the temperature rise of the film is lower than the set temperature.

[0010] In one specific implementation, the temperature inside the rapid heating box is between 400°C and 600°C.

[0011] In one specific implementation, the step of cooling and drying the film using a cooling fan box specifically includes: The film is suspended in a wave-like shape and moved within the cooling box; The film is cooled and dried by the low-temperature cold air inside the cooling box.

[0012] Secondly, a film cooling device is provided, comprising a rapid cooling water tank, a double-layer water tank, a release agent tank, an inclined conveyor belt, a rapid heating air box, and a cooling airflow direction, all arranged along the film transport direction; wherein... The rapid cooling water tank is used for initial cooling and smoke reduction of the film; The double-layer water tank is used to further cool and remove smoke from the film; The release agent tank is used to dip and coat the surface of the film with a release agent; The climbing mechanism is used to climb and lift the film and cool it down again; The rapid heating air box is used to dry the film; The cooling box is used to cool and dry the film.

[0013] In the above technical solution, using a water tank to eliminate delays is beneficial to the environmental protection of the workshop and reduces health hazards to operators. Furthermore, by increasing the evaporation volume of water vapor during the incline, the temperature of the film can be reduced. The rapid heating air box further drastically lowers the film temperature, and finally, a cooling air box further cools and dries the film. The combination of the rapid heating and cooling air boxes improves the film cooling and drying effect and significantly reduces the space required for cooling and drying the film, shortening the layout of the adhesive cooling production line.

[0014] In one specific implementation scheme, the temperature of the quench water tank and the double-layer water tank is 40℃~60℃; The length of the quench water tank is between 1 and 2 meters; the length of the double-layer water tank is between 10 and 20 meters.

[0015] In one specific implementation, the double-layer water tank includes: A first layer water tank and a second layer water tank are stacked together, and a conveyor wheel assembly is used to transport the film from the first layer water tank to the second layer water tank; wherein, the first layer water tank is used to receive the film transported by the quench water tank; the conveyor wheel assembly is located on the side of the first layer water tank opposite to the quench water tank.

[0016] In one specific implementation, the separator tank and the second water tank are arranged side by side, and the length of the first water tank is greater than the length of the second water tank.

[0017] In one specific implementation, the climbing mechanism includes: a climbing conveyor belt for conveying the film, and a ventilation system located at the discharge end of the climbing conveyor belt. Attached Figure Description

[0018] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments provided according to this disclosure and should not be construed as limiting the scope of this disclosure.

[0019] Figure 1 A flowchart of a film cooling method provided in an embodiment of this application; Figure 2 This is a schematic diagram of the film cooling device provided in an embodiment of this application. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] To facilitate understanding of the film cooling method provided in this application embodiment, its application scenario is first described. The film cooling method provided in this application embodiment is applied in the rubber compound production process. Traditionally, after the rubber compound is internally mixed and pressed into sheets, it is first cooled in a release agent tank and coated with a release agent to prevent film adhesion. Then, it is cooled and dried in a fan box, and finally stacked into reels for transfer and storage before being supplied to the next process. In this process, although the film is soaked in a release agent, due to seasonal changes, it is found at the stacking point that the film temperature is too high and the dryness is too low, making it difficult to meet process requirements. Existing technologies, while adding a water tank device before the release agent to address the film cooling purpose, suffer from large temperature fluctuations in the water within the tank, resulting in excessively high rubber temperature or incomplete film drying, failing to meet production requirements. Therefore, this application embodiment provides a film cooling method to improve the film cooling and drying effect. A detailed description follows with reference to specific drawings and embodiments.

[0023] refer to Figure 1 As shown, Figure 1 A flowchart of a film cooling method provided in an embodiment of this application is shown. It should be understood that the film cooling method provided in this application involves gradual cooling and drying of the film during transport. The film cooling method provided in this application is described in detail below with reference to the accompanying drawings. The method includes the following steps: Step 001: Initially cool and reduce smoke on the film using the rapid cooling water tank 10; For details, please refer to the following: Figure 2Film produced from twin-screw or open mills reaches high temperatures, such as 100-170℃. During cooling and drying, the film is first immersed in a quenching water tank 10 to achieve initial cooling and reduce fumes (smoke and oil fumes from film production). This means that after production, the film is transported through the quenching water tank 10, where the water absorbs smoke and oil fumes, which is beneficial for environmental protection in the workshop and reduces harm to operators. The immersion mentioned above refers to the film being submerged in the quenching water tank 10 during transport. The quenching in the quenching water tank 10 refers to the rapid cooling of the film.

[0024] For example, the temperature of the quench water tank 10 is 40℃~60℃, and for example, the temperature can be different, such as 40℃, 45℃, 50℃, 55℃, 60℃, etc. When passing through the quench water tank 10, the temperature of the film can be cooled down by the water. In addition, the main purpose of arranging the quench water tank 10 is to initially cool down the film and reduce smoke. The smoke and oil fumes generated during film production can be quickly removed through the quench water tank 10.

[0025] In a specific example, the length of the quench water tank 10 can be relatively short. For example, the length of the quench water tank 10 is between 1 and 2 meters. For example, the length of the quench water tank 10 can be 1 meter, 1.2 meters, 1.5 meters, 1.7 meters, 1.9 meters, 2 meters, etc. In this embodiment, the water cooling of the film is mainly achieved through the cooperation of the quench water tank 10 and the subsequent double-layer water tank 20. Therefore, when setting the quench water tank 10, its length can be relatively short, thereby reducing the length of the entire adhesive cooling production line. Furthermore, because the quench water tank 10 is shorter, the path the film travels through it is also shorter, resulting in a smaller temperature rise in the water within the quench water tank 10. In addition, the film passing through the water tank achieves a cooling effect, reducing the power consumption of the downstream air box and the total dust removal fan in the factory, thus achieving energy savings.

[0026] Step 002: The film is cooled and smoke removed again through a double-layer water tank (20 pairs of films); For details, please refer to the following: Figure 2The temperature of the double-layer water tank 20 provided in this application embodiment is 40℃~60℃. For example, the temperature can be different, such as 40℃, 45℃, 50℃, 55℃, and 60℃. When passing through the double-layer water tank 20, the temperature of the film can be cooled by the water. Furthermore, the main purpose of arranging the double-layer water tank 20 is to further cool the film and reduce smoke. The smoke and oil vapor generated during film production can be quickly removed through the double-layer water tank 20. It should be understood that the water in the double-layer water tank 20 can form a circulating water path with external equipment, so that the temperature inside the double-layer water tank 20 is always maintained between 40℃ and 60℃. For example, the double-layer water tank 20 is connected to a cooling device via water pipes, and a water pump provides power to make water circulate between the double-layer water tank 20 and the cooling device.

[0027] In one specific implementation, the double-layer water tank 20 is arranged in two layers, thereby reducing the length occupied by the double-layer water tank 20 while increasing the path of the film. In a specific configuration, the length of the double-layer water tank 20 is between 10 and 20 meters. For example, the length of the double-layer water tank 20 can be different, such as 10 meters, 13 meters, 15 meters, 17 meters, and 20 meters. When the film passes through the double-layer water tank 20, the longer double-layer water tank 20 increases the path length for film immersion, thereby improving the cooling and smoke reduction effect on the film. Furthermore, in a specific configuration, the double-layer water tank 20 is located downstream of the quench water tank 10, and the film output from the quench water tank 10 enters the double-layer water tank 20 for further cooling and smoke reduction.

[0028] In an alternative embodiment, a conveyor belt 100 may be added between the quench water tank 10 and the double-layer water tank 20 to support the film located between the quench water tank 10 and the double-layer water tank 20, ensuring stability during transmission.

[0029] Continue to refer to Figure 2 As shown, by Figure 2 As can be seen, the double-layer water tank 20 includes a first layer water tank 21 and a second layer water tank 22 stacked together. The second layer water tank 22 is located above the first layer water tank 21, and a conveyor wheel assembly 23 is arranged on the side of the first layer water tank 21 away from the quench water tank 10. The conveyor wheel assembly 23 is used to input the film output from the first layer water tank 21 into the second layer water tank 22 for soaking.

[0030] In use, the film output from the quench water tank 10 is conveyed by the conveyor belt 100 to the first water tank 21, and then by the conveyor wheel assembly 23 to the second water tank 22. When the film is immersed in the first water tank 21 and the second water tank 22, the surfaces facing the bottom of the tanks are opposite to each other. That is, after the film enters the second water tank 22 from the first water tank 21, it undergoes a flipping motion via the conveyor wheel assembly 23. This allows the different surfaces of the film to be fully immersed in the two different water tanks, improving the cooling and smoke reduction effect on the film.

[0031] Step 003: Apply release agent to the surface of the film through the release agent tank 30; For details, please refer to the following: Figure 2 The release agent is applied to the surface of the film by immersing it in a release agent tank 30 containing the release agent. It should be understood that as the film passes through the release agent tank 30, both surfaces of the film are immersed in the release agent tank 30 to ensure that both surfaces of the film are coated with the release agent.

[0032] Step 004: Cool the film again by climbing uphill; For details, please refer to the following: Figure 2 The film is lifted by a climbing system, which is used to transport the film. During the film transport process, a large amount of water vapor evaporates from the surface of the film. The water vapor carries away the heat of the film, thereby cooling it down. In a specific configuration, the climbing system includes an inclined conveyor belt 41 and an exhaust system 42 located at the discharge end of the inclined conveyor belt 41.

[0033] During film transfer, the film is conveyed via an inclined conveyor belt 41, which then transports the film to the rapid heating box 50 for rapid drying in the next process.

[0034] Additionally, a ventilation system 42 installed at the discharge end of the inclined conveyor belt 41 extracts the moisture generated by the film. This moisture is then carried outdoors, further cooling the film. It should be understood that the ventilation system 42 can be a fan or other device capable of generating suction. In one specific embodiment, the ventilation system 42 is a fan, and it is installed at the top (discharge end) of the inclined conveyor belt 41. As moisture rises during evaporation, the fan can more quickly draw it away, thereby reducing the film temperature.

[0035] It should be understood that the film can also be transported via a conveyor wheel when it is being transported from the release agent tank 30 to the ramp system, so as to ensure the stability of the film when it is being transported between different devices.

[0036] Step 005: Dry the film using the rapid heating air box 50; For details, please refer to the following: Figure 2 The film, conveyed from the ramp system, is further dried in the rapid heating box 50. Within the rapid heating box 50, the film is suspended in a wave-like shape and moves within the box. Specifically, the film is suspended in the rapid heating box 50 by multiple hanging rods. During suspension, the film droops and then bends to form a wave-like structure. Suspending the film in the rapid heating box 50 by multiple hanging rods allows for the storage of more film within a smaller space.

[0037] During the movement of the film within the rapid heating box 50, the film is dried by high-temperature hot air within the box, and the temperature rise of the film is lower than the set temperature. Although the film passes through the high-temperature hot air, the evaporation of moisture from the film surface carries away a large amount of heat, resulting in a minimal temperature rise. Furthermore, the rapid heating box 50 ensures that the film temperature remains below the set temperature. Using the rapid heating box 50 allows for rapid evaporation of moisture from the film surface through high-temperature hot air, carrying away a significant amount of heat during evaporation. This ensures that the film achieves a good drying effect while minimizing the impact on its temperature.

[0038] In one specific implementation, the temperature inside the rapid heating box 50 is between 400°C and 600°C. For example, the temperature inside the rapid heating box 50 can be any temperature such as 400°C, 450°C, 500°C, 550°C, or 600°C. That is, the temperature of the high-temperature hot air inside the rapid heating box 50 is between 400°C and 600°C, which allows the moisture on the film surface to evaporate quickly without significantly raising the temperature of the film, thus facilitating subsequent cooling and drying of the film.

[0039] In the specific implementation of the rapid heating air box 50, heating wires and insulation layers can be installed on the box wall of the rapid heating air box 50, and a fan can be added inside the rapid heating air box 50 to transmit heat through the heating wires. Step 006: Cool and dry the film using the cooling box 60.

[0040] For details, please refer to the following: Figure 2 After the film is dried in the rapid heating box 50, it is cooled and dried again in the cooling box 60. Specifically, the film is suspended in the cooling box 60 by a hanging rod and moves around, and is cooled and dried by blowing low-temperature cold air on the film during the movement. Since the temperature rise of the film in the rapid heating box 50 in the previous step is not significant, and the film is cooled by the rapid cooling water tank 10, the double-layer water tank 20, and the ramp system during the transport process, a shorter cooling box 60 is sufficient to cool and dry the film.

[0041] As can be seen from the above description, the film cooling method provided in this application eliminates delay by using a water tank, which is beneficial to the environmental protection of the workshop and reduces the health hazards to operators. Furthermore, by increasing the evaporation volume during the incline, a large amount of water vapor is carried out, which reduces the film temperature. The rapid heating air box 50 then dries the film, significantly lowering its temperature. Finally, the cooling air box 60 further cools and dries the film. The combination of the rapid heating air box 50 and the cooling air box 60 improves the film cooling and drying effect and greatly reduces the space required for cooling and drying the film, shortening the layout of the film cooling production line.

[0042] Continue to refer to Figure 2 As shown in the illustration, this application also provides a film cooling device, which includes a rapid cooling water tank 10, a double-layer water tank 20, a release agent tank 30, an inclined conveyor belt 41, a rapid heating air box 50, and a cooling airflow direction arranged along the film transport direction; wherein, the rapid cooling water tank 10 is used for initial cooling and smoke reduction of the film; the double-layer water tank 20 is used for further cooling and smoke removal of the film; the release agent tank 30 is used for dipping the surface of the film in a release agent; the inclined mechanism is used for climbing and lifting the film and further cooling the film; the rapid heating air box 50 is used for drying the film; and the cooling air box 60 is used for cooling and drying the film. For details, please refer to... Figure 1 A detailed description of the method shown.

[0043] In the above technical solution, the use of a water tank to eliminate delays is beneficial to the environmental protection of the workshop and reduces health hazards to operators. Furthermore, by increasing the evaporation volume of water vapor during the incline, the temperature of the film can be reduced. The rapid heating air box 50 further drastically lowers the film temperature, and finally, the cooling air box 60 cools and dries the film. The combination of the rapid heating air box 50 and the cooling air box 60 improves the cooling and drying effect of the film and significantly reduces the space required for cooling and drying the film, thus shortening the layout of the adhesive cooling production line.

[0044] In one specific implementation scheme, the temperature of both the quench water tank 10 and the double-layer water tank 20 provided in this application embodiment is 40℃~60℃. Furthermore, the length of the quench water tank 10 is between 1 and 2 meters; the length of the double-layer water tank 20 is between 10 and 20 meters. See details for further information. Figure 1 Detailed description of the Chinese method.

[0045] In one specific implementation scheme, the double-layer water tank 20 provided in this application embodiment includes: a first layer water tank 21 and a second layer water tank 22 arranged in layers, and a conveyor wheel assembly 23 for conveying film from the first layer water tank 21 to the second layer water tank 22; wherein, the first layer water tank 21 is used to receive the film conveyed by the quench water tank 10; the conveyor wheel assembly 23 is located on the side of the first layer water tank 21 opposite to the quench water tank 10. See details for further information. Figure 1 Detailed description of the Chinese method.

[0046] In one specific implementation scheme, when arranging the release agent tank 30 and the double-layer water tank 20, the release agent tank 30 and the second-layer water tank 22 are arranged side by side, and the length of the first-layer water tank 21 is greater than the length of the second-layer water tank 22. This allows the release agent tank 30 and the second-layer water tank 22 to be placed side by side above the first-layer water tank 21, effectively reducing the space occupied. The specific functions of the first-layer water tank 21, the second-layer water tank 22, and the release agent tank 30 can be found in [reference needed]. Figure 1 Detailed description of the Chinese method.

[0047] In one specific implementation, the climbing mechanism provided in this application includes: a climbing conveyor belt 41 for conveying film, and a ventilation system 42 located at the discharge end of the climbing conveyor belt 41. See details for further information. Figure 1 Detailed description of the Chinese method.

[0048] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

[0049] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A film cooling method, characterized in that, Includes the following steps: The film is initially cooled and smoke is reduced by using a rapid cooling water bath; The film is cooled and smoke-removed again by a double-layer water tank; The surface of the film is coated with a release agent through a release agent tank; The film is cooled again by climbing uphill; The film is dried using a rapid-heating air box; The film is cooled and dried using a cooling fan box.

2. The film cooling method according to claim 1, characterized in that, The temperature of the quench water tank and the double-layer water tank is 40℃~60℃. The length of the quench water tank is between 1 and 2 meters; the length of the double-layer water tank is between 10 and 20 meters.

3. The film cooling method according to claim 2, characterized in that, The process of further cooling the film by climbing the slope specifically includes: The film is transported by an inclined conveyor belt; The moisture generated by the film is extracted by a ventilation system installed at the discharge end of the inclined conveyor belt.

4. The film cooling method according to claim 1, characterized in that, The drying of the film using a rapid-heating air box specifically includes: The film is suspended in a wave-like shape and moved within the rapid heating box; The film is dried by high-temperature hot air in the rapid heating box, and the temperature rise of the film is lower than the set temperature.

5. The film cooling method according to claim 4, characterized in that, The temperature inside the rapid heating air box is between 400℃ and 600℃.

6. The film cooling method according to any one of claims 1 to 5, characterized in that, The step of cooling and drying the film using a cooling fan box specifically includes: The film is suspended in a wave-like shape and moved within the cooling box; The film is cooled and dried by the low-temperature cold air inside the cooling box.

7. A film cooling device, characterized in that, This includes a rapid cooling water tank, a double-layer water tank, a release agent tank, an inclined conveyor belt, a rapid heating air box, and cooling airflow arranged along the film transport direction; among which, The rapid cooling water tank is used for initial cooling and smoke reduction of the film; The double-layer water tank is used to further cool and remove smoke from the film; The release agent tank is used to dip and coat the surface of the film with a release agent; The climbing mechanism is used to climb and lift the film and cool it down again; The rapid heating air box is used to dry the film; The cooling box is used to cool and dry the film.

8. The film cooling apparatus according to claim 7, characterized in that, The temperature of the quench water tank and the double-layer water tank is 40℃~60℃. The length of the quench water tank is between 1 and 2 meters; the length of the double-layer water tank is between 10 and 20 meters.

9. The film cooling apparatus according to claim 8, characterized in that, The double-layer water tank includes: A first layer water tank and a second layer water tank are stacked together, and a conveyor wheel assembly is used to transport the film from the first layer water tank to the second layer water tank; wherein, the first layer water tank is used to receive the film transported by the quench water tank; the conveyor wheel assembly is located on the side of the first layer water tank opposite to the quench water tank.

10. The film cooling apparatus according to claim 9, characterized in that, The separator tank is arranged side by side with the second water tank, and the length of the first water tank is greater than the length of the second water tank.

11. The film cooling apparatus according to claim 9, characterized in that, The climbing mechanism includes: a climbing conveyor belt for conveying the film, and a ventilation system located at the discharge end of the climbing conveyor belt.

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