High-speed double-sided coating equipment
By adopting the design of back-shaped conveying routes and heating channels in the coating equipment, the problem of increasing the equipment's floor area is solved, efficient double-sided coating and baking is achieved, and space utilization and product quality are improved.
Patent Information
- Application Number
- CN202422211676.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-10
AI Technical Summary
While the existing coating equipment increases production capacity, the footprint and equipment cost increase. How to design a high-speed double-sided coating equipment to reduce the footprint and improve space utilization.
The vertical conveying and steering of the conductive film is achieved through unwinding, one-coating, one-slewing baking, flipping, second-coating, two-slewing baking and winding mechanisms, and combined with the heating channel and air circulation system, the equipment structure and baking efficiency are optimized.
It reduces the equipment footprint, improves space utilization and baking efficiency, and improves product production quality and equipment compactness.
Smart Images
Figure CN223128485U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery coating, in particular to a high-speed double-sided coating device. Background Technique
[0002] Pole piece coating is one of the most important key technologies in the battery production process. Specifically, it refers to uniformly coating the pole piece coating slurry onto the conductive films of the positive and negative electrode materials of lithium batteries. Pole piece coating is of great significance to batteries, mainly reflected in: the impact on the capacity of the finished battery. If the coating thickness at different positions of the pole piece is inconsistent during the coating process, it will cause the battery capacity to be too low or too high; the impact on the battery consistency. For example, if the parameters of the pole piece before and after are inconsistent, it will cause a large difference in capacity and a large difference in cycle life; the impact on the battery safety.
[0003] In the prior art, with the increase in production capacity, the coating equipment has increased production speed. Battery manufacturers have higher and higher technical requirements for coating machines, and the corresponding coating speed is getting faster and faster, resulting in the continuous increase in the length of the oven, and the floor area and equipment cost also increase accordingly. How to design a high-speed double-sided coating device that can reduce the floor area of the coating equipment while completing double-sided coating to improve space utilization is a technical problem that enterprise R & D personnel urgently need to solve. Content of the Utility Model
[0004] In view of the above deficiencies in the prior art, the present application provides a high-speed double-sided coating device.
[0005] The above-mentioned invention object of the present application is achieved through the following technical solutions:
[0006] A unwind mechanism that unwinds the conductive film;
[0007] A primary coating mechanism that coats the material on one side of the conductive film;
[0008] A primary rotary baking mechanism that dries the material on the conductive film and reverses the conveying direction of the conductive film;
[0009] A turning-over mechanism that turns over the conductive film so that the uncoated surface of the conductive film faces upward;
[0010] A secondary coating mechanism that coats the material on the uncoated surface of the conductive film;
[0011] A secondary rotary baking mechanism that dries the material on the conductive film and reverses the conveying direction of the conductive film;
[0012] A winding mechanism that winds the conductive film;
[0013] The conductive film is conveyed from the unwinding mechanism to the primary coating mechanism, passes through the primary rotary baking mechanism and passes under or above the unwinding mechanism and the primary coating mechanism. The conductive film is sequentially conveyed to the turning mechanism, the secondary coating mechanism and the tertiary rotary baking mechanism, and then is conveyed to the winding mechanism after being turned by the tertiary rotary baking mechanism.
[0014] By adopting the above technical solution, a figure-eight conveying route extending in the vertical direction is formed between the unwinding mechanism, the primary coating mechanism and the primary rotary baking mechanism, and between the secondary coating mechanism, the tertiary rotary baking mechanism and the winding mechanism. Through the setting of two consecutive figure-eight conveying routes, the conductive film can flow efficiently between various mechanisms, enabling the conveying process of the conductive film to be carried out and turned in the vertical space dimension, realizing the transformation of the coating equipment from a horizontal production line to a vertical production line, reducing the floor area of the equipment, improving the space utilization rate, and under the action of the turning mechanism, after the conductive film completes the first figure-eight conveying route, it can turn the uncoated surface upwards and then enter the second figure-eight conveying process to complete the double-sided coating and drying operations, and the equipment structure is compact and smooth.
[0015] In a preferred example of the present application, it can be further configured that: the high-speed double-sided coating equipment further includes a secondary rotary baking mechanism, which receives the conductive film output from the primary rotary baking mechanism and performs secondary drying on the material on the conductive film, and turns the conveying direction of the conductive film; a quaternary rotary baking mechanism, which receives the conductive film output from the tertiary rotary baking mechanism and performs secondary drying on the material on the conductive film, and turns the conveying direction of the conductive film.
[0016] By adopting the above technical solution, a secondary rotary baking mechanism and a quaternary rotary baking mechanism are respectively supplemented in the two figure-eight conveying routes of the conductive film, which can further improve the baking efficiency of the equipment to further improve the utilization rate of the vertical space, and the equipment structure is compact and smooth.
[0017] In a preferred example of the present application, it can be further configured that: heating channels for the conductive film to pass through are connected between the primary rotary baking mechanism and the secondary rotary baking mechanism, and between the tertiary rotary baking mechanism and the quaternary rotary baking mechanism, and heating elements for generating heat are arranged inside the heating channels.
[0018] By adopting the above technical solution, the setting of the heating channels in combination with the heating elements makes reasonable use of the space between the primary rotary baking mechanism and the secondary rotary baking mechanism, and between the tertiary rotary baking mechanism and the quaternary rotary baking mechanism, avoiding space waste, and can further improve the baking efficiency of the equipment and improve the production quality of the product.
[0019] In a preferred example, the present application can be further configured as follows: the primary rotary baking mechanism includes an oven, the oven is provided with a feed inlet and a discharge outlet, a heating roller is rotatably arranged inside the oven, the conductive film is fed from the feed inlet and wound around the heating roller, and then discharged from the discharge outlet. The heating roller is used to abut against the conductive film, and a heating device is arranged inside the oven, and the heating device is used to heat the heating roller.
[0020] By adopting the above technical solution, after the conductive film undergoes a coating operation, it enters the oven and is conveyed to the heating roller. Under the action of the heating device, through the way of contact heat conduction, the heat can be directly transferred to the material on the conductive film to complete the heating and drying work, and it also plays a role in guiding the conveyance of the conductive film, enabling the conveyance process of the conductive film to be carried out in the vertical space dimension and to turn, so as to serve as the turning point of the return-shaped conveyance route of the conductive film. Compared with a linear oven, it can reduce the floor area of the baking equipment and improve the space utilization rate.
[0021] In a preferred example, the present application can be further configured as follows: the oven is connected with a wind circulation system, and the wind circulation system is used to remove the liquid vapor generated when the conductive film is heated.
[0022] By adopting the above technical solution, the wind circulation system removes the liquid vapor generated when the material on the conductive film is heated, continuously takes away the solvent component, so as to reduce the interference of the vapor on the conductive film inside the oven, thereby improving the baking efficiency and heating uniformity of the conductive film.
[0023] In a preferred example, the present application can be further configured as follows: the wind circulation system includes a blower and a ventilation box, the blower is arranged outside the oven, and the ventilation box is connected between the blower and the oven.
[0024] By adopting the above technical solution, the blower and the ventilation box can send external air into the working box body through the ventilation box.
[0025] In a preferred example, the present application can be further configured as follows: a plurality of heating tubes for generating heat are arranged inside the ventilation box.
[0026] By adopting the above technical solution, the heating tubes heat the air sent into the ventilation box to form high-temperature hot air, so that after the high-temperature hot air enters the oven, it can continuously perform hot air drying on the material on the conductive film, further improving the baking efficiency of the baking equipment.
[0027] In a preferred example, the present application can be further configured as follows: The turning mechanism includes a guiding frame and a turning roller. The turning roller is rotatably arranged on the guiding frame. The turning roller is used to abut against the upper surface of the conductive film. The secondary coating mechanism is arranged above the turning roller and between the secondary rotary baking mechanism and the turning roller. After the conductive film is output from the secondary rotary baking mechanism, the conductive film is wound around and abuts against the turning roller, and is output to the secondary coating mechanism.
[0028] By adopting the above technical solution, under the action of the turning roller, the uncoated surface of the conductive film can be turned upwards. And by adopting the positional layout among the secondary rotary baking mechanism, the secondary coating mechanism and the turning roller, it is convenient for the subsequent secondary coating of the conductive film, and at the same time, it can enter the next section of the figure-eight conveying operation, further improving the utilization rate of the vertical space.
[0029] In a preferred example, the present application can be further configured as follows: A roller pressing frame is arranged between the four-time rotary baking mechanism and the winding mechanism. Two pressing rollers are rotatably connected to the roller pressing frame. The two pressing rollers are symmetrically arranged up and down. The two pressing rollers are respectively used to abut against the upper and lower surfaces of the conductive film.
[0030] By adopting the above technical solution, when the conductive film passes between the two pressing rollers, the two pressing rollers can respectively roll and flatten the dried materials on the upper and lower surfaces of the conductive film to improve the flatness of the materials on the conductive film and enhance the production quality of the product.
[0031] In a preferred example, the present application can be further configured as follows: A transfer channel for the conductive film to pass through is arranged between the secondary coating mechanism and the three-time rotary baking mechanism. One end of the transfer channel communicates with the three-time rotary baking mechanism and the other end is arranged on the discharge side of the secondary coating mechanism.
[0032] By adopting the above technical solution, the transfer channel can provide a conveying space after the secondary coating of the conductive film to prevent the materials on the conductive film from detaching to other equipment located below the conductive film before drying, improving the safety of the overall equipment, and can play a guiding role to facilitate the subsequent figure-eight conveying operation of the second section of the conductive film.
[0033] In a preferred example, the present application can be further configured as follows: The diameter of the heating roller is 200 - 10000 mm, and the thickness of the heating roller is 100 - 10000 mm.
[0034] In summary, the present application includes at least one of the following beneficial technical effects:
[0035] 1. Through the setting of two continuous U-shaped conveying routes, the conductive film can be efficiently circulated between various mechanisms, and the conveying process of the conductive film can be carried out and turned in the vertical space dimension, realizing the transformation of the coating equipment from the horizontal assembly line expansion to the vertical assembly line expansion, reducing the equipment footprint, and improving space utilization. In addition, under the action of the turning mechanism, after the conductive film completes the first U-shaped conveying route, the uncoated surface can be turned to the upward direction, and then enter the second U-shaped conveying process to complete the double-sided coating and drying operations. The equipment structure is compact and smooth.
[0036] 2. The arrangement of the heating channel and the heating element enables the space between the first rotary baking mechanism and the second rotary baking mechanism, as well as the space between the third rotary baking mechanism and the fourth rotary baking mechanism to be reasonably utilized, thus avoiding the waste of space and further improving the baking efficiency of the equipment and the production quality of the product.
[0037] 3. After coating, the conductive film enters the oven and is transported to the heating roller. Under the action of the heating device, heat can be directly transferred to the material on the conductive film through contact heat conduction to complete the heating and drying work, and guide the conductive film for transportation, so that the conveying process of the conductive film can be carried out and turned in the vertical space dimension, which serves as the turning point of the conductive film's U-shaped conveying route. Compared with a linear oven, it can reduce the floor space of the baking equipment to improve space utilization. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] Figure 1 This is a schematic diagram of the overall structure of a high-speed double-sided coating device in one embodiment of the present application;
[0039] Figure 2 It is a schematic diagram of the conveying route of the conductive film in a high-speed double-sided coating device in one embodiment of the present application;
[0040] Figure 3 It is a structural schematic diagram of a single rotary baking mechanism in one embodiment of the present application.
[0041] Figure numerals: 1. unwinding mechanism; 2. conductive film; 3. primary coating mechanism; 4. primary rotary baking mechanism; 41. oven; 42. feed port; 43. discharge port; 44. heating roller; 5. secondary rotary baking mechanism; 6. turning mechanism; 61. guide frame; 62. flip roller; 7. secondary coating mechanism; 8. tertiary rotary baking mechanism; 9. quaternary rotary baking mechanism; 10. winding mechanism; 11. heating channel; 12. air circulation system; 121. blower; 122. ventilation box; 13. roller press frame; 14. extrusion roller; 15. handover channel. DETAILED DESCRIPTION
[0042] The exemplary embodiments of the present application will be described below with reference to the accompanying drawings. Various details of the embodiments of the present application are included to facilitate understanding, and they should be considered merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted below.
[0043] It should be noted that the terms "first", "second", etc. in the present utility model are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure.
[0044] In addition, the term "and / or" herein is merely a description of the associated relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after, unless otherwise specified.
[0045] A high-speed double-sided coating device of the present application will be described below with reference to the accompanying drawings.
[0046] Referring to Figures 1 to 3 , in which, as Figure 1 and Figure 2 shown, the high-speed double-sided coating device includes an unwinding mechanism 1 that unwinds a conductive film 2; a primary coating mechanism 3 that coats one side of the conductive film 2 with a material; a primary rotary baking mechanism 4 that dries the material on the conductive film 2 and reverses the conveying direction of the conductive film 2; a turning-over mechanism 6 that performs a turning-over operation on the conductive film 2 so that the uncoated surface of the conductive film 2 faces upward; a secondary coating mechanism 7 that coats the uncoated surface of the conductive film 2 with a material; a tertiary rotary baking mechanism 8 that dries the material on the conductive film 2 and reverses the conveying direction of the conductive film 2; a winding mechanism 10 that winds the conductive film 2; the conductive film 2 is conveyed from the unwinding mechanism 1 to the primary coating mechanism 3, passes through the primary rotary baking mechanism 4 and passes directly below or above the unwinding mechanism 1 and the primary coating mechanism 3, and the conductive film 2 is sequentially conveyed to the turning-over mechanism 6, the secondary coating mechanism 7 and the tertiary rotary baking mechanism 8, and then is conveyed to the winding mechanism 10 after being reversed by the tertiary rotary baking mechanism 8.
[0047] In one embodiment, the high-speed double-sided coating equipment further includes a secondary rotary baking mechanism 5, which receives the conductive film 2 output from the primary rotary baking mechanism 4, secondarily dries the material on the conductive film 2, and reverses the conveying direction of the conductive film 2; and a quaternary rotary baking mechanism 9, which receives the conductive film 2 output from the tertiary rotary baking mechanism 8, secondarily dries the material on the conductive film 2, and reverses the conveying direction of the conductive film 2. By supplementing and arranging the secondary rotary baking mechanism 5 and the quaternary rotary baking mechanism 9 in the two loop-shaped conveying routes at both ends of the conductive film 2 respectively, the baking efficiency of the equipment can be further improved, so as to further improve the utilization rate of the vertical space. The equipment structure is compact and smooth.
[0048] Specifically, the unwinding mechanism 1 is responsible for unwinding and releasing the conductive film roll 2, and then conveying it to the primary coating mechanism 3 for material coating, and then successively conveying it to the primary rotary baking mechanism 4 and the secondary rotary baking mechanism 5 for drying, completing the coating and drying operation on one side of the conductive film 2. After that, the turning mechanism 6 turns the uncoated surface of the conductive film 2 upwards, and then conveys it to the secondary coating mechanism 7 for material coating, and then successively conveys it to the secondary rotary baking mechanism 5 and the tertiary rotary baking mechanism 8 for drying, completing the coating and drying operation on the other side of the conductive film 2. During the conveying process of the conductive film 2, loop-shaped conveying routes extending in the vertical direction are formed between the unwinding mechanism 1, the primary coating mechanism 3, the primary rotary baking mechanism 4 and the secondary rotary baking mechanism 5, and between the secondary coating mechanism 7, the tertiary rotary baking mechanism 8, the quaternary rotary baking mechanism 9 and the winding mechanism 10. Through the setting of two continuous loop-shaped conveying routes, the conductive film 2 can flow efficiently between the mechanisms, enabling the conveying process of the conductive film 2 to be carried out in the vertical space dimension and turned, realizing the transformation of the coating equipment from a horizontal assembly line to a vertical assembly line, reducing the floor area of the equipment, improving the space utilization rate, and under the action of the turning mechanism 6, after the conductive film 2 completes the first loop-shaped conveying route, the uncoated surface can be turned upwards, and then immediately enters the second loop-shaped conveying process to complete the double-sided coating and drying operation. The equipment structure is compact and smooth.
[0049] It should be noted that both the primary coating mechanism 3 and the secondary coating mechanism 7 can adopt roll coating, spraying or extrusion coating machines, and are paired with a roller line to complete the traction and conveying of the conductive film 2, so as to provide conveying power for the conductive film 2. Both the unwinding mechanism 1 and the winding mechanism 10 can include a rotating roller rotatably arranged and a driving member for driving the rotating roller to rotate. The driving member can select a motor as the driving source. Under the action of the motor, the rotating roller in the rotating state can realize the unwinding and spreading or winding and storing of the conductive film 2. In addition, the primary coating mechanism 3, the secondary coating mechanism 7, the unwinding mechanism 1 and the winding mechanism 10 can all use conventional equipment on the market for operation, and no restrictions are imposed here.
[0050] Furthermore, between the first rotary baking mechanism 4 and the second rotary baking mechanism 5, and between the third rotary baking mechanism 8 and the fourth rotary baking mechanism 9, there are heating channels 11 for the conductive film 2 to pass through. Inside the heating channels 11, there are heating elements for generating heat (not shown in the figure). The heating elements can be heating electronic components such as electric heating wires and electric heating rods, or other heating devices. By adopting the setting of the heating channels 11 in combination with the heating elements, the space between the first rotary baking mechanism 4 and the second rotary baking mechanism 5, and the space between the third rotary baking mechanism 8 and the fourth rotary baking mechanism 9 can be reasonably utilized, avoiding waste of space, and further improving the baking efficiency of the equipment and enhancing the production quality of the product.
[0051] Among them, as Figure 1 and Figure 3 shown, the first rotary baking mechanism 4 includes an oven 41. The oven 41 is provided with a feed inlet 42 and a discharge outlet 43. Inside the oven 41, there is a heating roller 44 rotatably arranged. The conductive film 2 enters from the feed inlet 42, winds around the heating roller 44, and then exits from the discharge outlet 43. The heating roller 44 is used to abut against the conductive film 2. Inside the oven 41, there is a heating device (not shown in the figure). The heating device is used to heat the heating roller 44. Among them, after the conductive film 2 undergoes a coating operation, it enters the oven 41 and is conveyed to the heating roller 44. Under the action of the heating device, through the way of contact heat conduction, the heat can be directly transferred to the material on the conductive film 2 to complete the heating and drying work, and play a role in guiding the conveyance of the conductive film 2, enabling the conveyance process of the conductive film 2 to be carried out in the vertical space dimension and turn, serving as the turning point of the figure-eight conveyance route of the conductive film 2. Compared with the linear oven 41, it can reduce the floor area of the baking equipment to improve the space utilization rate.
[0052] It should be noted that the heating device can adopt a heating equipment using electric heating technology (such as arranging several electric heating rods or electric heating wires for generating heat on the inner side wall of the heating roller 44 and other electrically heatable heating devices) to transfer heat to the outer surface of the heating roller 44, thereby realizing the function of heat conduction to the conductive film 2, which will not be elaborated here.
[0053] It should also be noted that the structures and principles of the first rotary baking mechanism 4, the second rotary baking mechanism 5, the third rotary baking mechanism 8, and the fourth rotary baking mechanism 9 are the same. The difference between them lies in the arrangement positions, and the sizes of the heating rollers 44 in each rotary baking mechanism can be the same or different. Technical personnel can adjust parameters such as the conveyance path and speed of the conductive film 2 through the size design of the heating roller 44. Among them, in this embodiment, the diameter of the heating roller 44 is 200 - 10000 mm, and the thickness of the heating roller 44 is 100 - 10000 mm.
[0054] Further, an air circulation system 12 is connected to the oven 41. The air circulation system 12 is used to remove the liquid vapor generated when the conductive film 2 is heated. The air circulation system 12 removes the liquid vapor generated when the material on the conductive film 2 is heated, continuously taking away the solvent component to reduce the interference of the vapor on the conductive film 2 inside the oven 41, thereby improving the baking efficiency and heating uniformity of the conductive film 2.
[0055] Specifically, the air circulation system 12 includes a blower 121 and a ventilation box 122. The blower 121 is arranged outside the oven 41, and the ventilation box 122 is connected between the blower 121 and the oven 41. By cooperating the blower 121 with the ventilation box 122, external air can be sent into the working chamber through the ventilation box 122.
[0056] Further, a number of heating tubes (not shown in the figure) for generating heat are also arranged inside the ventilation box 122. The heating tubes heat the air sent into the ventilation box 122 to form high-temperature hot air, so that after the high-temperature hot air enters the oven 41, it can continuously perform hot air drying on the material on the conductive film 2, further improving the baking efficiency of the baking equipment.
[0057] In an embodiment, the turning mechanism 6 includes a guiding frame 61 and a turning roller 62. The turning roller 62 is rotatably arranged on the guiding frame 61. The turning roller 62 is used to abut against the upper surface of the conductive film 2. The secondary coating mechanism 7 is arranged above the turning roller 62 and between the secondary rotary baking mechanism 5 and the turning roller 62. After the conductive film 2 is output from the secondary rotary baking mechanism 5, the conductive film 2 is wound around and abuts against the turning roller 62 and is output to the secondary coating mechanism 7. Under the action of the turning roller 62, the non-coated surface of the conductive film 2 can be turned upwards. And by adopting the positional layout among the secondary rotary baking mechanism 5, the secondary coating mechanism 7, and the turning roller 62, it is convenient for the conductive film 2 to perform secondary coating subsequently and enter the next loop-shaped conveying operation, further improving the utilization rate of the vertical space.
[0058] In addition, a roller pressing frame 13 is arranged between the four-time rotary baking mechanism 9 and the winding mechanism 10. Two pressing rollers 14 are rotatably connected to the roller pressing frame 13. The two pressing rollers 14 are symmetrically arranged up and down. The two pressing rollers 14 are respectively used to abut against the upper and lower surfaces of the conductive film 2. When the conductive film 2 passes between the two pressing rollers 14, the two pressing rollers 14 can respectively roll and flatten the dried materials on the upper and lower surfaces of the conductive film 2 to improve the flatness of the materials on the conductive film 2 and enhance the production quality of the product.
[0059] In addition, a transfer channel 15 for allowing the conductive film 2 to pass through is provided between the secondary coating mechanism 7 and the three - time rotary baking mechanism 8. One end of the transfer channel 15 communicates with the three - time rotary baking mechanism 8, and the other end is arranged on the discharge side of the secondary coating mechanism 7. The transfer channel 15 can provide a conveying space after the secondary coating of the conductive film 2 is completed, so as to prevent the materials on the conductive film 2 from detaching to other devices located below the conductive film 2 before drying, improve the safety of the overall device, and can play a guiding role to facilitate the subsequent second - stage zigzag conveying operation of the conductive film 2.
[0060] The above - mentioned specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub - combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. A high-speed double-sided coating device, characterized in that, Including: An unwinding mechanism (1) for unwinding a conductive film (2); A primary coating mechanism (3) for coating a material on one side of the conductive film (2); A primary rotary baking mechanism (4) for drying the material on the conductive film (2) and reversing the conveying direction of the conductive film (2); A turning-over mechanism (6) for turning over the conductive film (2) so that the uncoated surface of the conductive film (2) faces upward; A secondary coating mechanism (7) for coating a material on the uncoated surface of the conductive film (2); A tertiary rotary baking mechanism (8) for drying the material on the conductive film (2) and reversing the conveying direction of the conductive film (2); A winding mechanism (10) for winding the conductive film (2); The conductive film (2) is conveyed from the unwinding mechanism (1) to the primary coating mechanism (3), passes through the primary rotary baking mechanism (4) and passes directly below or above the unwinding mechanism (1) and the primary coating mechanism (3), and the conductive film (2) is sequentially conveyed to the turning-over mechanism (6), the secondary coating mechanism (7) and the tertiary rotary baking mechanism (8), and then is conveyed to the winding mechanism (10) after being reversed by the tertiary rotary baking mechanism (8).
2. The high-speed double-sided coating equipment according to claim 1, characterized in that, It further includes a secondary rotary baking mechanism (5) that receives the conductive film (2) output from the primary rotary baking mechanism (4) and performs secondary drying on the material on the conductive film (2), and reverses the conveying direction of the conductive film (2); and a quaternary rotary baking mechanism (9) that receives the conductive film (2) output from the tertiary rotary baking mechanism (8) and performs secondary drying on the material on the conductive film (2), and reverses the conveying direction of the conductive film (2).
3. A high-speed double-sided coating device according to claim 2, characterized in that, A heating channel (11) for the conductive film (2) to pass through is connected between the primary rotary baking mechanism (4) and the secondary rotary baking mechanism (5), and between the tertiary rotary baking mechanism (8) and the quaternary rotary baking mechanism (9). A heating element for generating heat is provided inside the heating channel (11).
4. A high-speed double-sided coating device according to claim 1, wherein, The primary rotary baking mechanism (4) includes an oven (41). The oven (41) is provided with a feed inlet (42) and a discharge outlet (43). A heating roller (44) is rotatably provided inside the oven (41). The conductive film (2) enters from the feed inlet (42), winds around the heating roller (44), and then exits from the discharge outlet (43). The heating roller (44) is used to abut against the conductive film (2). A heating device is provided inside the oven (41) for heating the heating roller (44).
5. The high-speed double-sided coating equipment according to claim 4, characterized in that, The oven (41) is connected to a wind circulation system (12) for removing the liquid vapor generated when the conductive film (2) is heated.
6. A high-speed double-sided coating device according to claim 5, characterized in that The wind circulation system (12) includes a blower (121) and a ventilation box (122). The blower (121) is provided outside the oven (41), and the ventilation box (122) is connected between the blower (121) and the oven (41).
7. A high-speed double-sided coating device according to claim 6, characterized in that, A plurality of heating tubes for generating heat are arranged inside the ventilation box (122).
8. A high-speed double-sided coating device according to claim 2, characterized in that, The flipping mechanism (6) comprises a guide frame (61) and a flip roller (62), wherein the flip roller (62) is rotatably arranged on the guide frame (61), and the flip roller (62) is used to abut against the upper surface of the conductive film (2). The secondary coating mechanism (7) is arranged above the flip roller (62) and is located between the secondary rotary baking mechanism (5) and the flip roller (62). After the conductive film (2) is output from the secondary rotary baking mechanism (5), the conductive film (2) is wound around and abuts against the flip roller (62), and is output to the secondary coating mechanism (7).
9. A high-speed double-sided coating device according to claim 2, wherein, A roller pressing frame (13) is arranged between the four-time rotary baking mechanism (9) and the winding mechanism (10), and the roller pressing frame (13) is rotatably connected to two squeezing rollers (14). The two squeezing rollers (14) are symmetrically arranged up and down, and the two squeezing rollers (14) are respectively used to abut the upper and lower surfaces of the conductive film (2).
10. A high-speed double-sided coating device according to claim 1, characterized in that, A connection channel (15) for allowing the conductive film (2) to pass through is provided between the secondary coating mechanism (7) and the tertiary rotary baking mechanism (8); one end of the connection channel (15) is connected to the tertiary rotary baking mechanism (8) and the other end is provided at the discharge side of the secondary coating mechanism (7).
11. A high-speed double-sided coating device according to claim 4, characterized in that The diameter of the heating roller (44) is 200-10000 mm, and the thickness of the heating roller (44) is 100-10000 mm.