Rapid drying device for coated conducting film

Abstract

The utility model relates to the technical field of conductive film production, and discloses a rapid drying device for a coated conductive film, which comprises a support frame, the top end of the support frame is fixedly connected with a coating mechanism, the top end of the support frame is fixedly connected with a drying cover, the middle part of the drying cover is provided with a drying cavity, and the drying cavity is communicated with the coating mechanism. The top end of the supporting frame is fixedly connected with two airflow pipes, the top ends of the airflow pipes are provided with hot air blowers, the exteriors of the airflow pipes are fixedly connected with drainage pipes, the exteriors of the drainage pipes are fixedly connected with two flow guide pipes, and the interiors of the flow guide pipes are fixedly connected with conical pipes; the side, away from the drainage tube, of the flow guide tube is fixedly connected with an air inlet tube. According to the drying device, the cost can be saved, meanwhile, the jet flow generated by the injection structure can drive surrounding air to flow rapidly, the drying speed is increased, in addition, the number of waste products generated due to deviation is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of conductive film production technology, and in particular to a rapid drying device for conductive film coating. Background Technology

[0002] A conductive film is a thin film with conductive properties, typically made of metallic or semi-metallic materials. The conductivity of a conductive film depends on its material and thickness, as well as the scattering effects of its surface and interfaces. Conductive films have wide applications in electronics, communications, and energy, such as in the manufacture of solar cells, electronic devices, and sensors. The fabrication process of a conductive film involves multiple steps, including substrate preparation, film material selection, coating, and drying. After coating, the conductive film undergoes drying, during which gases such as carbon dioxide, ammonia, and water vapor are generated. These gases are produced due to the decomposition of chemical components in the conductive film material during heating or their reaction with gases in the surrounding environment. The drying process of a conductive film usually needs to be carried out under specific temperature and humidity conditions to ensure the stability and conductivity of the conductive film material.

[0003] A search revealed that Chinese Patent CN216482037U discloses a drying device for conductive film production, including an oven. The oven has symmetrically arranged through slots at both ends for the film to pass through. Several air blowers are evenly distributed along the film conveying direction at both the top and bottom of the oven, with the blowers at the bottom and top of the oven being staggered. The airflow of each blower is adjustable. This invention utilizes multiple air blowers staggered at the top and bottom of the oven, allowing the film to suspend between the upper and lower blowers. This not only ensures effective drying but also prevents scratches on the film surface. Furthermore, the adjustable airflow of the blowers allows for drying films of different weights with improved drying efficiency and greater versatility.

[0004] The aforementioned patent's specific embodiments mention that "the drying device for conductive film production has multiple air blower mechanisms 3 staggered at the top and bottom of the oven 1, allowing the film to suspend between the upper and lower air blower mechanisms. This not only ensures the drying effect but also prevents scratches on the film surface. Furthermore, the airflow of the air blower mechanism 3 is adjustable, making it suitable for drying films of different weights with better drying results and greater applicability." However, while the airflow is adjustable, finding the optimal balance between ensuring drying effect and reducing energy consumption may be difficult. Reducing the airflow for energy saving would affect drying efficiency; conversely, increasing the airflow solely for drying efficiency would lead to energy waste. Secondly, due to variations in film thickness, coating density, and composition in different areas, uneven mass distribution when the film is suspended in the airflow causes different responses to the airflow forces acting on different parts of the film. Heavier parts experience relatively less airflow resistance, while lighter parts experience relatively greater airflow resistance, causing the film to twist or shift, ultimately leading to conductive film displacement. Therefore, to address these issues, a rapid drying device for conductive film coating is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rapid drying device for conductive film coating, which aims to improve the problems in the prior art that cannot accurately ensure the suspension and stability of the conductive film and that the conductive film is prone to shifting during drying due to different coating densities.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rapid drying device for conductive film coating includes a support frame, a coating mechanism fixedly connected to the top of the support frame, a drying hood fixedly connected to the top of the support frame, a drying chamber formed in the middle of the drying hood, two airflow pipes fixedly connected to the top of the support frame, a hot air blower mounted at the top of each airflow pipe, a guide pipe fixedly connected to the outside of each airflow pipe, two guide tubes fixedly connected to the outside of each guide tube, a conical tube fixedly connected inside each guide tube, an air inlet pipe fixedly connected to the side of each guide tube away from the guide tube, an air outlet pipe fixedly connected to the side of each guide tube away from the guide tube, multiple guide rollers rotatably connected to the bottom of the front and rear sides of the drying hood, two support plates fixedly connected to the side of the drying hood near the coating mechanism, a positioning shaft detachably connected to the top of each of the two support plates, and a positioning component for adjusting the position of the conductive film mounted on the outside of the positioning shaft.

[0008] Furthermore, the positioning component includes two limiting rings, the inner walls of the two limiting rings are slidably connected to the outside of the positioning shaft, a groove is provided at the top center of the limiting ring, a pull rod is slidably connected at the top center of the limiting ring, a locking block is fixedly connected to the bottom end of the pull rod, and two springs are fixedly connected to the top end of the locking block.

[0009] Furthermore, the external portion of the drain pipe is detachably connected to the front and rear sides of the drying hood, and the external portion of the guide pipe is fixedly connected to the front and rear sides of the drying hood.

[0010] Furthermore, the side of the air outlet pipe near the guide pipe is fixedly connected to the outside of the air inlet pipe, and a dehumidifier is provided on the rear side of the drying hood.

[0011] Furthermore, the bottom end of the locking block contacts the top end of the positioning shaft, and the top end of the spring is fixedly connected to the top end of the inner wall of the groove.

[0012] Furthermore, the bottom end of the support plate is fixedly connected to the top center of the support frame.

[0013] Furthermore, two support plates are fixedly connected to the side of the support frame near the drying hood, and a winding shaft is detachably connected to the top of the two support plates.

[0014] Furthermore, two support plates are fixedly connected to the side of the support frame near the coating mechanism, and the top ends of the two support plates are detachably connected to support shafts.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, the coated conductive film is passed through the drying hood and finally wound up by a winding shaft. The hot air blower, when started, heats the support frame through the airflow pipe. The guide pipe disperses the hot airflow from the hot air blower into the guide pipe. The airflow velocity from the guide pipe through the conical pipe is higher than the residual heat airflow absorbed by the air inlet pipe, thereby driving the airflow into the air inlet pipe and generating an ejection principle. Compared with the multiple fans suspended drying described above, this method can save costs. At the same time, the jet generated by the ejection structure can drive the surrounding air to flow rapidly, making the hot air more evenly distributed around the object being dried and increasing the drying speed.

[0017] 2. In this utility model, by pulling the lever in sequence, the spring-pressed block retracts into the groove, so that the moving limit ring fits into both sides of the moving conductive film, thus ensuring that the position of the conductive film is fixed during the drying process, effectively reducing the number of defective products caused by displacement and reducing production costs. Attached Figure Description

[0018] Figure 1This is a three-dimensional schematic diagram of a rapid drying device for conductive film coating proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the drying hood of a rapid drying device for conductive film coating proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the air inlet pipe of a rapid drying device for conductive film coating proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the limiting ring structure of a rapid drying device for conductive film coating proposed in this utility model.

[0022] Legend:

[0023] 1. Support frame; 2. Coating mechanism; 3. Drying hood; 4. Drying chamber; 5. Airflow pipe; 6. Hot air blower; 7. Drain pipe; 8. Guide pipe; 9. Conical pipe; 10. Air inlet pipe; 11. Air outlet pipe; 12. Dehumidifier; 13. Guide roller; 14. Support plate one; 15. Positioning shaft; 16. Limiting ring; 17. Groove; 18. Pull rod; 19. Locking block; 20. Spring; 21. Support plate two; 22. Rewinding shaft; 23. Support plate three; 24. Support shaft. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1 to 3 This utility model provides an embodiment of a rapid drying device for conductive film coating, comprising a support frame 1. The support frame 1 ensures that the relative positions of each component remain stable during operation, thereby ensuring that the coating and drying of the conductive film can be carried out accurately and efficiently. A coating mechanism 2 is fixedly connected to the top of the support frame 1. The coating mechanism 2 is responsible for uniformly coating ink onto the conductive film and is a key component for realizing the conductive film coating process.

[0026] A drying hood 3 is fixedly connected to the top of the support frame 1, providing a relatively enclosed space for the drying process of the conductive film. A drying chamber 4 is located in the middle of the drying hood 3 and is the area where the conductive film is actually dried. Two airflow pipes 5 are fixedly connected to the top of the support frame 1. These airflow pipes 5 serve as channels for hot air, introducing hot air generated by a hot air blower 6 into the drying chamber 4 to provide a heat source for drying the conductive film. A hot air blower 6 is installed at the top of the airflow pipe 5. After being started by an external power source, the hot air blower 6 converts electrical energy into heat energy, generating a flow of high-temperature hot air. A drain pipe 7 is fixedly connected to the outside of the airflow pipe 5, serving to drain a portion of the hot air within the airflow pipe 5.

[0027] refer to Figure 2 , Figure 3 The external portion of the drain pipe 7 is detachably connected to the front and rear sides of the drying hood 3. The drain pipe 7 is threaded onto the drying hood 3 through mounting holes. The length of the drain pipe 7 is equal to the length of the drying hood 3. Two guide pipes 8 are fixedly connected to the external portion of the drain pipe 7, and the guide pipes 8 introduce hot air from the drain pipe 7. The guide pipes 8 are fixedly connected to the front and rear sides of the drying hood 3, and the drying hood 3 fixes the guide pipes 8 to the top positions of the front and rear sides.

[0028] A tapered tube 9 is fixedly connected inside the guide tube 8. The tapered tube 9, installed inside the guide tube 8, adjusts and distributes the flow rate and pressure of the hot air through its tapered structure. An air inlet pipe 10 is fixedly connected to the side of the guide tube 8 away from the guide tube 7, connecting the guide tube 8 and the drying chamber 4, serving to introduce hot air from the drying chamber 4 into the guide tube 8. An air outlet pipe 11 is fixedly connected to the side of the guide tube 8 away from the guide tube 7, directly blowing the regulated and accelerated hot air from the guide tube 8 onto the surface of the conductive film. Through heat exchange between the hot air and the conductive film, the ink on the surface of the conductive film rapidly evaporates and dries, achieving the drying of the conductive film.

[0029] The exhaust pipe 11 is fixedly connected to the outside of the intake pipe 10 on the side near the guide pipe 8, thus securing the intake pipe 10. A dehumidifier 12 is installed at the rear of the drying hood 3. During the drying process, the ink on the surface of the conductive film evaporates, generating a large amount of water vapor. If this water vapor accumulates inside the drying hood 3, it will affect the humidity of the hot air and the drying effect, and may even cause the conductive film to become damp, affecting its quality and performance. The dehumidifier 12 can remove the water vapor inside the drying hood 3, reduce the air humidity, and maintain a dry drying environment, which is beneficial for improving the drying speed and quality.

[0030] Multiple guide rollers 13 are rotatably connected to the bottom ends of the front and rear sides of the drying hood 3. These guide rollers 13 are installed on the bottom ends of the front and rear sides of the drying hood 3 to guide the conductive film's transmission path within the drying hood 3. Two support plates 14 are fixedly connected to the side of the drying hood 3 closest to the coating mechanism 2. The bottom ends of the support plates 14 are fixedly connected to the top center of the support frame 1, and the support plates 14 support the positioning shaft 15. The positioning shaft 15 is detachably connected to the top ends of the two support plates 14. The support plates 14 are fixed to the positioning shaft 15 by bolts.

[0031] refer to Figure 1 , Figure 4 The positioning shaft 15 is provided with a positioning component for adjusting the position of the conductive film. The positioning component includes two limiting rings 16. The inner wall of the middle part of the two limiting rings 16 is slidably connected to the outside of the positioning shaft 15. The limiting rings 16 limit the two sides of the conductive film by cooperating with the positioning shaft 15, ensuring that the conductive film always stays in the predetermined position during the drying process and preventing the conductive film from shifting in the horizontal direction.

[0032] A groove 17 is formed in the middle of the top of the limiting ring 16, which serves as the mounting space for the pull rod 18 and the spring 20. The pull rod 18 is slidably connected to the middle of the top of the limiting ring 16, and is the operating component for the operator to manually adjust the position of the limiting ring 16. A locking block 19 is fixedly connected to the bottom of the pull rod 18, and the bottom of the locking block 19 contacts the top of the positioning shaft 15. Two springs 20 are fixedly connected to the top of the locking block 19. The locking block 19 can press against the surface of the positioning shaft 15 through the compression of the springs 20, thereby fixing the limiting ring 16. The top of the spring 20 is fixedly connected to the top of the inner wall of the groove 17, and the spring 20 provides elastic force to the locking block 19, allowing the locking block 19 to be tightly pressed against the top of the positioning shaft 15.

[0033] refer to Figure 1 Two support plates 21 are fixedly connected to the side of the support frame 1 near the drying hood 3. A winding shaft 22 is detachably connected to the top of each support plate 21. The support plates 21 support the winding shaft 22, raising it to a suitable position. Driven by a motor, the winding shaft 22 rotates, winding up the conductive film after it has been coated by the coating mechanism 2 and dried by the drying hood 3. Two support plates 33 are fixedly connected to the side of the support frame 1 near the coating mechanism 2. These support plates 33 fix a support shaft 24 in a suitable position. The top of each support plate 33 is detachably connected to a support shaft 24, which is used to fix the conductive film roll.

[0034] Working principle: In use, first, the conductive film roll is placed on the outside of the support shaft 24. Then, one end of the conductive film is passed through the coating mechanism 2, contacts the outside of the top of the positioning shaft 15, passes through the drying hood 3, and the bottom end contacts the guide roller 13 and is fixed inside the take-up shaft 22. Finally, the pull rod 18 is pulled in sequence to drive the locking block 19, which is squeezed by the spring 20, to retract into the groove 17, so that the moving limit ring 16 fits against both sides of the moving conductive film, thus ensuring that the position of the conductive film is fixed during the drying process. Then, the motor fixed on the take-up shaft 22 is started by the external power supply, so that the motor drives the take-up shaft 22 to rotate and wind up the conductive film.

[0035] At this time, when the wound conductive film passes through the coating mechanism 2, it will be coated by the ink shaft in the coating mechanism 2. After coating, the conductive film will move to the position of the positioning shaft 15 and be positioned by the limiting rings 16 on both sides of the positioning shaft 15 to prevent it from shifting during sliding.

[0036] When the conductive film is transferred to the drying chamber 4 along the positioning shaft 15, the hot air blower 6 starts operating after being connected to an external power source, blowing air into the connected airflow pipe 5. This air is converted into heat flow under the heating effect of the hot air blower 6. The heat flow first spreads downwards along the top space of the drying chamber 4 towards the winding shaft 22 until it fills the entire drying chamber 4, creating a high-temperature environment for drying the conductive film.

[0037] Meanwhile, since the drainage pipe 7 is connected to the airflow pipe 5, after the hot air blower 6 is started, a portion of the hot air will be diverted out of the airflow pipe 5 by the drainage pipe 7, and then this portion of hot air will flow into the guide pipe 8 connected to it. In the guide pipe 8, the hot air will flow towards the inner conical pipe 9, and finally be ejected at high speed from the conical hole of the conical pipe 9, forming an airflow with a certain velocity and pressure. This airflow travels along the path of the air outlet pipe 11, precisely blowing towards the surface of the conductive film, directly heating and drying the conductive film.

[0038] Furthermore, since the air inlet pipe 10 is fixedly connected between the guide pipe 8 and the air outlet pipe 11, when the drying chamber 4 is filled with hot air, some of the hot air will be drawn into the guide pipe 8 through the air inlet pipe 10. At this time, the high-speed airflow flowing out from the conical pipe 9 will generate an entraining effect, driving the hot air entering from the air inlet pipe 10 to accelerate outwards towards the air outlet pipe 11. This airflow pattern can effectively drive the air around the drying chamber 4 to circulate rapidly, making the distribution of hot air around the conductive film more uniform and sufficient, greatly improving the heat transfer efficiency, thereby significantly accelerating the drying speed of the conductive film and improving the efficiency and effect of the entire drying process.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid drying device for conductive film coating, comprising a support frame (1), characterized in that: A coating mechanism (2) is fixedly connected to the top of the support frame (1), a drying hood (3) is fixedly connected to the top of the support frame (1), a drying chamber (4) is opened in the middle of the drying hood (3), two airflow pipes (5) are fixedly connected to the top of the support frame (1), a hot air blower (6) is provided at the top of the airflow pipes (5), a drainage pipe (7) is fixedly connected to the outside of the airflow pipes (5), two guide pipes (8) are fixedly connected to the outside of the drainage pipes (7), and a conical pipe (9) is fixedly connected inside the guide pipes (8). An air inlet pipe (10) is fixedly connected to the side of the guide pipe (8) away from the drain pipe (7), and an air outlet pipe (11) is fixedly connected to the side of the guide pipe (8) away from the drain pipe (7). Multiple guide rollers (13) are rotatably connected to the bottom ends of the front and rear sides of the drying hood (3). Two support plates (14) are fixedly connected to the side of the drying hood (3) near the coating mechanism (2). The top ends of the two support plates (14) are detachably connected to a positioning shaft (15). A positioning component for adjusting the position of the conductive film is provided on the outside of the positioning shaft (15).

2. The rapid drying device for conductive film coating according to claim 1, characterized in that: The positioning assembly includes two limiting rings (16). The inner walls of the middle part of the two limiting rings (16) are slidably connected to the outside of the positioning shaft (15). A groove (17) is provided at the middle of the top of the limiting ring (16). A pull rod (18) is slidably connected at the middle of the top of the limiting ring (16). A locking block (19) is fixedly connected to the bottom of the pull rod (18). Two springs (20) are fixedly connected to the top of the locking block (19).

3. The rapid drying device for conductive film coating according to claim 1, characterized in that: The external of the drain pipe (7) is detachably connected to the front and rear sides of the drying hood (3), and the external of the guide pipe (8) is fixedly connected to the front and rear sides of the drying hood (3).

4. The rapid drying device for conductive film coating according to claim 1, characterized in that: The air outlet pipe (11) is fixedly connected to the outside of the air inlet pipe (10) on the side near the guide pipe (8), and a dehumidifier (12) is provided on the rear side of the drying hood (3).

5. The rapid drying device for conductive film coating according to claim 2, characterized in that: The bottom end of the locking block (19) is in contact with the top end of the positioning shaft (15), and the top end of the spring (20) is fixedly connected to the top end of the inner wall of the groove (17).

6. The rapid drying device for conductive film coating according to claim 1, characterized in that: The bottom end of the support plate (14) is fixedly connected to the top center of the support frame (1).

7. The rapid drying device for conductive film coating according to claim 1, characterized in that: The support frame (1) has two support plates (21) fixedly connected to the side near the drying hood (3), and the top of the two support plates (21) is detachably connected to a winding shaft (22).

8. The rapid drying device for conductive film coating according to claim 1, characterized in that: The support frame (1) has two support plates (23) fixedly connected to one side of the coating mechanism (2), and the top of the two support plates (23) is detachably connected to a support shaft (24).

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