A quick-drying device for coating aluminum sheet
By employing negative pressure adsorption and waste heat utilization, the design solves the problems of heat energy waste and low drying efficiency in aluminum sheet coating quick-drying devices, enabling simultaneous drying of the upper and lower surfaces of aluminum sheets, thereby improving production efficiency and energy utilization efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIN ZHAN MASCH (WUXI) CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-23
AI Technical Summary
Existing quick-drying devices for aluminum sheet coatings suffer from heat energy waste and low drying efficiency, especially since they cannot dry both sides of the aluminum sheet simultaneously, increasing energy consumption and drying time.
The design employs negative pressure adsorption and waste heat utilization. An air pump fixes the aluminum sheet onto the suction cup, and a heating tube and a blower are used to dry the upper and lower surfaces of the aluminum sheet respectively, achieving simultaneous drying on both sides.
It improves production efficiency, reduces energy consumption, shortens drying time, and ensures thorough drying of both the upper and lower surfaces of the aluminum sheet.
Smart Images

Figure CN224389240U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum sheet coating drying technology, specifically an aluminum sheet coating quick-drying device. Background Technology
[0002] Aluminum sheets are thin sheet products made of aluminum. During the aluminum sheet processing, a coating treatment is often required. After the aluminum sheet is coated, it needs to be dried. The drying treatment can accelerate the drying speed of the coating.
[0003] A Chinese patent with publication number CN211587366U discloses a quick-drying device for aluminum sheet coating, including a placement base plate. A drying chamber shell is fixedly connected to the upper end of the placement base plate. Multiple support bases are fixedly installed at the bottom end of the placement base plate. A partition is provided in the middle of the inner end of the drying chamber shell. The upper and rear sides of the partition are fixedly connected to the inner wall of the drying chamber shell, and the lower side of the partition is fixedly connected to the upper end surface of the placement base plate. A placement groove is opened in the center of the partition, and multiple air outlets penetrating the two side walls of the partition are opened on the side wall of the placement groove. Multiple No. 1 baffles are fixedly installed on the outer sides of the two side walls of the partition. This utility model has a simple structure and is easy to operate. It can quickly dry the aluminum sheet coating by using hot air and airflow.
[0004] In the aforementioned aluminum sheet coating quick-drying device, the heating tube generates a large amount of heat energy during the drying process. This heat energy is not only used to dry the aluminum sheet coating but also raises the temperature of the air inside the device. However, existing aluminum sheet coating quick-drying devices do not have an effective waste heat recovery or utilization mechanism, resulting in the waste of this heat energy, increasing energy consumption and operating costs. Furthermore, existing aluminum sheet coating quick-drying devices can only dry one side of the aluminum sheet. When both sides of the aluminum sheet need to be dried, the aluminum sheet must be flipped or two drying operations must be performed, which increases the drying time and reduces the overall drying efficiency. Therefore, to address the above problems, an aluminum sheet coating quick-drying device is proposed. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes an aluminum sheet coating quick-drying device.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: An aluminum sheet coating quick-drying device of this utility model includes a base, a frame fixedly connected to the base, three fixed sleeves installed on the top side of the base, and the fixed sleeves are disposed within the frame. A hollow inner tube is slidably assembled inside each fixed sleeve. A suction cup is fixedly connected to the top end of the hollow inner tube. A first limiting plate is fitted onto the fixed sleeve, and a second limiting plate is fitted onto the hollow inner tube. A spring is fixedly connected between the first and second limiting plates, and the spring is sleeved on the outside of the hollow inner tube. The three fixed sleeves... The aluminum sheet is connected by a hollow tube, with both ends of the hollow tube penetrating the frame. A pressure relief valve is installed at one end of the hollow tube, and an air pump is installed on one side wall of the frame. The input port of the air pump is connected to an air extraction pipe, and the other end of the air extraction pipe is connected to the end of the hollow tube. When drying the coated aluminum sheet, the aluminum sheet is placed on the suction cup, and air is extracted by the air pump, which reduces the pressure inside the fixing sleeve. The tube and suction cup in the cavity move down, and the aluminum sheet is firmly adsorbed on the suction cup using the principle of negative pressure. This design not only fixes the aluminum sheet but also avoids damage to the coating due to the movement of the aluminum sheet during the drying process.
[0007] Preferably, a first electrode plate is installed on the first limiting plate, and a second electrode plate is installed on the second limiting plate. Two sets of heating tubes are fixedly connected to both sides of the inside of the frame, and the two sets of heating tubes are respectively located on both sides of the fixed sleeve. The heating tubes, the second electrode plate and the first electrode plate are electrically connected. When the second electrode plate moves down to contact the first electrode plate, the heating tube is energized and starts to heat. Since the heating tube is located on the bottom side of the aluminum sheet, the heat generated by the heating tube can not only dry the lower surface of the aluminum sheet, but also raise the air temperature inside the frame, providing conditions for drying the upper surface of the aluminum sheet.
[0008] Preferably, multiple guide pipes are connected to the bottom of one side of the frame. These guide pipes are interconnected through a hollow tube. A housing is installed at the port of the hollow tube, and a blower is installed inside the housing. Multiple air inlets are opened at the bottom of the side of the frame away from the hollow tube, and the air inlets are on the same horizontal plane as the ports of the guide pipes. Multiple exhaust holes are opened at the top of the side of the frame away from the hollow tube, and an air pipe channel is fixedly connected between the air inlets and exhaust holes. During the drying process, the high-temperature gas inside the frame is blown through the guide pipes to the air inlets by the operation of the blower, flows into the air pipe channel, and finally sprays onto the upper surface of the aluminum sheet through the exhaust holes, so that both the upper and lower surfaces of the aluminum sheet can be fully dried. The design of simultaneous drying on both sides greatly shortens the drying time and improves production efficiency.
[0009] The advantages of this utility model are:
[0010] In this invention, when drying coated aluminum sheets, the aluminum sheet is placed on a suction cup. An air pump draws air, causing a decrease in pressure inside the fixing sleeve. This causes the inner tube and suction cup to move downwards, and the aluminum sheet is firmly adsorbed onto the suction cup using negative pressure. This design not only secures the aluminum sheet but also prevents damage to the coating due to sheet movement during drying. When the second electrode plate moves down to contact the first electrode plate, the heating tube is energized and begins heating. Because the heating tube is located on the bottom side of the aluminum sheet, the heat generated not only dries the lower surface of the aluminum sheet but also raises the temperature of the air inside the frame. A blower then blows the high-temperature gas inside the frame through the guide tube into the air inlet and into the air pipe channel, finally spraying it onto the upper surface of the aluminum sheet through the exhaust port. This ensures that both the upper and lower surfaces of the aluminum sheet are thoroughly dried. This dual-sided simultaneous drying design significantly shortens drying time and improves production efficiency. Furthermore, the use of residual heat to dry the upper surface of the aluminum sheet effectively utilizes this heat, reducing energy consumption and improving energy efficiency. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a first side view of the overall three-dimensional structure of the device;
[0013] Figure 2 This is a schematic diagram of the overall second side view of the three-dimensional structure of the device;
[0014] Figure 3 This is a top-down three-dimensional structural diagram of the device;
[0015] Figure 4 This is a cross-sectional three-dimensional structural diagram of the device;
[0016] Figure 5 A schematic diagram of the structure is shown in the cross-sectional view of the fixed sleeve and the inner tube of the cavity.
[0017] In the diagram: 1. Base; 2. Frame; 3. Fixing sleeve; 4. Inner tube of cavity; 5. Suction cup; 6. First limiting plate; 7. Second limiting plate; 8. Spring; 9. First electrode plate; 10. Second electrode plate; 11. Heating tube; 13. Hollow tube; 14. Pressure relief valve; 15. Air pump; 16. Suction pipe; 17. Guide pipe; 18. Hollow tube; 19. Shell; 20. Blower; 21. Air inlet; 22. Exhaust port; 23. Air pipe channel. Detailed Implementation
[0018] 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 scope of protection of the present utility model.
[0019] Please see Figure 1-5 As shown, an aluminum sheet coating quick-drying device includes a base 1, a frame 2 fixedly connected to the base 1, three fixing sleeves 3 installed on the top side of the base 1, and the fixing sleeves 3 are set inside the frame 2. A hollow inner tube 4 is slidably assembled in each fixing sleeve 3. A suction cup 5 is fixedly connected to the top end of the hollow inner tube 4. A first limiting plate 6 is fitted on the fixing sleeve 3, and a second limiting plate 7 is fitted on the hollow inner tube 4. A spring 8 is fixedly connected between the first limiting plate 6 and the second limiting plate 7, and the spring 8 is sleeved on the outside of the hollow inner tube 4. On one side, three fixed sleeves 3 are connected by hollow tubes 13, with both ends of the hollow tubes 13 penetrating the frame 2. A pressure relief valve 14 is installed at one end of the hollow tube 13. A first electrode plate 9 is installed on the first limiting plate 6, and a second electrode plate 10 is installed on the second limiting plate 7. Two sets of heating tubes 11 are fixedly connected to both sides of the inside of the frame 2, and the two sets of heating tubes 11 are located on both sides of the fixed sleeves 3. The heating tubes 11, the second electrode plate 10, and the first electrode plate 9 are electrically connected. On one side wall of the frame 2... An air pump 15 is installed, with its input port connected to a suction pipe 16, and the other end of the suction pipe 16 connected to the end of the hollow tube 13. During operation, when drying the coated aluminum sheet, the aluminum sheet is first placed on the suction cup 5. Then, the air pump 15 is started, and the air is extracted through the suction pipe 16, causing the pressure inside the hollow tube 13 and the fixing sleeve 3 to decrease. This causes the inner tube 4 and the suction cup 5 to move downwards, and the aluminum sheet is firmly adsorbed onto the suction cup 5 using the principle of negative pressure. This design does not... Not only is the aluminum sheet fixed, but damage to the coating is also prevented from occurring due to the movement of the aluminum sheet during the drying process. The inner tube 4 of the cavity drives the second limiting plate 7 and the second electrode plate 10 on the bottom side to move down, and the spring 8 is compressed. When the second electrode plate 10 moves down to contact the first electrode plate 9, the heating tube 11 is energized and starts to heat. Since the heating tube 11 is located on the bottom side of the aluminum sheet, the heat generated by the heating tube 11 can not only dry the lower surface of the aluminum sheet, but also raise the temperature of the air inside the frame 2, providing conditions for the drying of the upper surface of the aluminum sheet.
[0020] Please see Figure 2-4As shown, a plurality of guide pipes 17 are connected to the bottom of one side of the frame 2. The plurality of guide pipes 17 are connected through a cavity pipe 18. A housing 19 is installed at the port of the cavity pipe 18. A blower 20 is installed inside the housing 19. A plurality of air inlets 21 are opened at the bottom of one side of the frame 2 away from the cavity pipe 18. The air inlets 21 and the ports of the guide pipes 17 are on the same horizontal plane. A plurality of exhaust holes 22 are opened at the top of one side of the frame 2 away from the cavity pipe 18. An air pipe channel 23 is fixedly connected between the air inlets 21 and the exhaust holes 22. During operation, in the drying process, the blower 20 blows the high-temperature gas inside the frame 2 through the guide pipe 17 into the air inlet 21 and into the air pipe channel 23. Finally, it is sprayed onto the upper surface of the aluminum sheet through the exhaust port 22, so that both the upper and lower surfaces of the aluminum sheet can be fully dried. The design of drying both sides at the same time greatly shortens the drying time and improves production efficiency. At the same time, the method of drying the upper surface of the aluminum sheet by using waste heat makes effective and full use of waste heat, reduces energy consumption, and improves energy utilization efficiency.
[0021] Working Principle: In the aforementioned aluminum sheet coating quick-drying device, the heating tube 11 generates a large amount of heat energy during the drying process. This heat energy is not only used to dry the aluminum sheet coating but also raises the internal air temperature of the device. However, existing aluminum sheet coating quick-drying devices do not have an effective waste heat recovery or utilization mechanism, resulting in the waste of this heat energy, increasing energy consumption and operating costs. Furthermore, existing aluminum sheet coating quick-drying devices can only dry one side of the aluminum sheet. When both sides need to be dried, the aluminum sheet must be flipped or two drying operations must be performed, increasing drying time and reducing overall drying efficiency. Therefore, to address these problems, a new aluminum sheet coating quick-drying device is proposed. When drying the coated aluminum sheet, the aluminum sheet is first placed on the suction cup 5. Then, the air pump 15 is started, and the gas inside the hollow tube 13 and the fixed sleeve 3 is extracted through the air extraction pipe 16, causing the pressure inside the fixed sleeve 3 to drop. The hollow tube 4 and the suction cup 5 move downwards, and the aluminum sheet is firmly adsorbed using the negative pressure principle. On the suction cup 5, this design not only fixes the aluminum sheet but also prevents damage to the coating due to the movement of the aluminum sheet during the drying process. The inner tube 4 of the cavity drives the second limiting plate 7 and the second electrode plate 10 on the bottom side to move down, and the spring 8 is compressed. When the second electrode plate 10 moves down to contact the first electrode plate 9, the heating tube 11 is energized and starts to heat. Since the heating tube 11 is located on the bottom side of the aluminum sheet, the heat generated by the heating tube 11 can not only dry the lower surface of the aluminum sheet but also raise the temperature of the air inside the frame 2. Through the operation of the blower 20, the high-temperature gas inside the frame 2 is blown into the air inlet 21 through the guide tube 17 and flows into the air pipe channel 23. Finally, it is sprayed onto the upper surface of the aluminum sheet through the exhaust hole 22, so that both the upper and lower surfaces of the aluminum sheet can be fully dried. The design of drying both sides at the same time greatly shortens the drying time and improves production efficiency. At the same time, the method of drying the upper surface of the aluminum sheet by using residual heat makes effective and full use of residual heat, reduces energy consumption, and improves energy utilization efficiency.
[0022] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0023] 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.
Claims
1. A device for quick-drying aluminum sheet coating, characterized in that: Includes a base (1), on which a frame (2) is fixedly connected. Three fixing sleeves (3) are installed on the top side of the base (1), and the fixing sleeves (3) are set inside the frame (2). Each fixing sleeve (3) has a hollow inner tube (4) slidably assembled inside it. A suction cup (5) is fixedly connected to the top end of the hollow inner tube (4). A first limiting plate (6) is fitted on the fixing sleeve (3), and a second limiting plate (7) is fitted on the hollow inner tube (4). A spring (8) is fixed between the positioning plate (6) and the second limiting plate (7), and the spring (8) is sleeved on the outside of the hollow inner tube (4). Three fixed sleeves (3) are connected through a hollow tube (13), and the two ends of the hollow tube (13) are set through the frame (2). A pressure relief valve (14) is installed at one end of the hollow tube (13). A first electrode plate (9) is installed on the first limiting plate (6), and a second electrode plate (10) is installed on the second limiting plate (7).
2. The aluminum sheet coating quick-drying device according to claim 1, characterized in that: Two sets of heating tubes (11) are fixedly connected to both sides of the inner side of the frame (2), and the two sets of heating tubes (11) are located on both sides of the fixed sleeve (3), and the heating tubes (11), the second electrode plate (10) and the first electrode plate (9) are electrically connected.
3. The aluminum sheet coating quick-drying device according to claim 1, characterized in that: An air pump (15) is installed on one side wall of the frame (2). The inlet of the air pump (15) is connected to an air extraction pipe (16), and the other end of the air extraction pipe (16) is connected to the end of the hollow tube (13).
4. The aluminum sheet coating quick-drying device according to claim 1, characterized in that: The bottom of one side of the frame (2) is connected to a plurality of guide pipes (17), and the plurality of guide pipes (17) are connected through a cavity pipe (18). A shell (19) is installed at the port of the cavity pipe (18), and a blower (20) is provided inside the shell (19).
5. The aluminum sheet coating quick-drying device according to claim 1, characterized in that: Multiple air inlets (21) are provided at the bottom of the frame (2) away from the cavity tube (18), and the air inlets (21) and the port of the guide tube (17) are on the same horizontal plane.
6. The aluminum sheet coating quick-drying device according to claim 1, characterized in that: Multiple exhaust holes (22) are provided on the top of one side of the frame (2) away from the cavity tube (18), and an air pipe channel (23) is fixed between the air inlet (21) and the exhaust hole (22).