Carbon coating and coating all-in-one machine

Abstract

The utility model relates to the technical field of battery coating, in particular to a carbon coating and coating all-in-one machine, which comprises an unwinding mechanism, a carbon coating mechanism and a coating mechanism, the carbon coating mechanism is used for coating a carbon layer on the unwound current collector by adopting a spraying technology; the carbon layer baking mechanism is used for drying the carbon layer on the current collector; the coating mechanism is used for carrying out material coating on the surface, coated with the carbon layer, of the current collector; the material baking mechanism is used for drying materials on the current collector; the winding mechanism is used for winding the current collector; a current collector is sequentially conveyed to the carbon coating mechanism, the carbon layer baking mechanism, the coating mechanism, the material baking mechanism and the winding mechanism from the unwinding mechanism. The device has the advantages that the carbon coating mechanism and the coating mechanism are integrated, intermediate transportation links can be reduced, and accordingly the production efficiency and the production quality of the battery are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery coating, in particular to a carbon coating and coating integrated machine. Background Art

[0002] Aluminum foil, copper foil and other materials are the main substrates of battery current collectors. They have excellent conductive properties, can effectively transmit current, and ensure the smooth progress of chemical reactions inside the battery. In order to further improve battery performance, carbon-coated current collector substrates such as carbon-coated aluminum foil and carbon-coated copper foil have also appeared. They form a dense carbon coating layer by adding carbon materials (such as carbon black, graphite sheets and graphene) to the surface. This carbon coating layer can significantly improve the conductivity of the battery's positive electrode sheet, making the transmission of electrons inside the battery smoother, thereby improving the overall performance of the battery.

[0003] In the existing technology, the carbon coating process is mainly carried out by roller-type carbon coating, and the film thickness is difficult to reduce and accurately control. The manufacturing and processing accuracy is insufficient and the cost is high. In addition, the carbon coating process and the coating process are mostly carried out separately. There is a lack of integrated technology for carbon coating and coating systems, which limits the further improvement of battery production efficiency and production quality, and needs to be solved urgently. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the present application provides a carbon coating and coating integrated machine.

[0005] The above invention objectives of this application are achieved through the following technical solutions:

[0006] an unwinding mechanism for unwinding the current collector;

[0007] A carbon coating mechanism, which uses a spray coating technique to coat a carbon layer on the unwound current collector;

[0008] A carbon layer baking mechanism, which dries the carbon layer on the current collector;

[0009] A coating mechanism for coating a material on a side of the current collector coated with a carbon layer;

[0010] Material baking mechanism, which dries the material on the current collector;

[0011] a winding mechanism for winding the current collector;

[0012] The current collector is transported from the unwinding mechanism to the carbon coating mechanism, the carbon layer baking mechanism, the coating mechanism, the material baking mechanism and the winding mechanism in sequence.

[0013] By adopting the above technical solution, the carbon coating mechanism adopts spraying technology to coat the carbon layer on the current collector. Compared with the roller coating method, the thickness of the carbon layer can be controlled by precisely controlling the spraying amount, so as to reduce the film thickness and reduce the use of carbon layer materials, meeting the requirements of energy conservation, emission reduction and cost reduction, and by conveying the current collector to the carbon coating mechanism, the carbon layer baking mechanism, the coating mechanism and the material baking mechanism in sequence, so that the current collector can complete the carbon coating process, carbon layer curing, the coating process with the carbon layer as the base surface layer and the material curing process in sequence on the same conveyor line. The various processes are smooth and compact, and the carbon coating mechanism and the coating mechanism are integrated, which can reduce the intermediate transportation links, thereby improving the production efficiency and production quality of the battery.

[0014] In a preferred example, the present application can be further configured as follows: the carbon coating mechanism includes a storage tank and a pump body, the storage tank is filled with carbon powder slurry, the pump body is arranged in the storage tank and is connected to a delivery pipe, the pump body is used to transport the carbon powder slurry in the storage tank to the delivery pipe, and the delivery pipe is connected to a plurality of nozzles.

[0015] By adopting the above technical solution, a storage tank is set up to provide a storage location for the carbon powder slurry, and a pump body and a feed pipe are matched to transport the carbon powder slurry in the storage tank to several nozzles of the feed pipe, so that the carbon powder slurry can be evenly transported from multiple nozzles to the outer surface of the collector, thereby realizing the carbon layer spraying technology.

[0016] In a preferred example, the present application can be further configured as follows: the carbon coating mechanism also includes a support frame, and the plurality of nozzles are fixedly mounted on the support frame.

[0017] By adopting the above technical solution, a support frame is set up to provide a stable installation position for the multiple nozzles, thereby avoiding unstable spraying caused by shaking of the delivery pipe.

[0018] In a preferred example, the present application can be further configured as follows: the carbon layer baking mechanism includes a first installation box, the first installation box is provided with a first feed port and a first discharge port, a first heat transfer roller is rotatably arranged inside the first installation box, the collector is fed from the first feed port and wound around the first heat transfer roller, and then discharged from the first discharge port, the first heat transfer roller is used to abut the collector, and a first heating device is provided inside the first installation box, the first heating device is used to heat the first heat transfer roller.

[0019] By adopting the above technical solution, the current collector enters the first installation box after the carbon layer spraying operation and is transported to the first heat transfer roller. Under the action of the first heating device, the heat can be transferred to the carbon layer on the current collector through contact heat conduction, completing the heat transfer and drying operation, and playing a role in guiding the current collector for transportation, so that the transportation process of the current collector can be carried out in the vertical space dimension, which can reduce the footprint of the baking equipment and improve space utilization.

[0020] In a preferred example, the present application can be further configured as follows: the material baking mechanism includes a second installation box, the second installation box is provided with a second feed port and a second discharge port, a second heat transfer roller is rotatably arranged inside the second installation box, the collector is discharged from the first discharge port and passes through the coating mechanism, is fed from the second feed port and is wound around the second heat transfer roller, and then discharged from the second discharge port, the second heat transfer roller is used to abut the collector, and a second heating device is provided inside the second installation box, and the second heating device is used to heat the second heat transfer roller.

[0021] By adopting the above technical solution, the current collector enters the second installation box after the coating operation and is transported to the second heat transfer roller. Under the action of the second heating device, the heat can be transferred to the material on the current collector through contact heat conduction, completing the heat transfer and drying operation, and guiding the current collector for transportation. At the same time, the carbon layer baking mechanism and the material baking mechanism can serve as the turning point of the U-shaped conveying route of the current collector, so that the conveying process of the current collector can be carried out in the vertical space dimension and turned for circular transportation. Compared with the linear conveying line, it can further reduce the footprint of the baking equipment to further improve space utilization.

[0022] In a preferred example, the present application may be further configured as follows: the first installation box is connected to an air circulation system, and the air circulation system is used to remove liquid vapor generated when the current collector is heated.

[0023] By adopting the above technical solution, the air circulation system removes the liquid vapor generated when the material on the collector is heated, and continuously takes away the solvent components to reduce the interference of the steam on the collector inside the oven, thereby improving the baking efficiency and heating uniformity of the collector.

[0024] In a preferred example, the present application can be further configured as follows: the air circulation system includes a blower and a ventilation box, the blower is arranged outside the first installation box, and the ventilation box is connected and arranged between the blower and the first installation box.

[0025] By adopting the above technical solution, the blower cooperates with the ventilation box to send external air into the first installation box through the ventilation box.

[0026] In a preferred example, the present application can be further configured as follows: a plurality of heating tubes for generating heat are provided inside the ventilation box.

[0027] By adopting the above technical solution, the heating tube heats the air sent into the ventilation box by generating heat to form high-temperature hot air, so that after the high-temperature hot air enters the first installation box, it can continuously dry the material on the collector with hot air, further improving the baking efficiency of the baking equipment.

[0028] In a preferred example, the present application can be further configured as follows: a roller press frame is provided between the material baking mechanism and the winding mechanism, and the roller press frame is rotatably connected to two squeezing rollers, the two squeezing rollers are symmetrically arranged up and down, and both of the squeezing rollers are used to abut the current collector.

[0029] By adopting the above technical solution, when the current collector passes between the two squeezing rollers, the two squeezing rollers can provide guidance to the current collector while rolling and flattening the dried material on the current collector, thereby improving the flatness of the material on the current collector and improving the production quality of the product.

[0030] Another object of the present application is to provide a carbon coating integrated machine, comprising an unwinding mechanism for unwinding a current collector;

[0031] A carbon coating mechanism, which uses gravure printing technology to coat a carbon layer on the unwound current collector;

[0032] A carbon layer baking mechanism, which dries the carbon layer on the current collector;

[0033] A coating mechanism for coating a material on a side of the current collector coated with a carbon layer;

[0034] Material baking mechanism, which dries the material on the current collector;

[0035] a winding mechanism for winding the current collector;

[0036] The current collector is transported from the unwinding mechanism to the carbon coating mechanism, the carbon layer baking mechanism, the coating mechanism, the material baking mechanism and the winding mechanism in sequence.

[0037] By adopting the above technical solution, compared with the roller coating method, the gravure printing technology can accurately control the thickness and uniformity of the carbon layer, ensuring good contact between the carbon layer and the current collector surface, thereby further improving the conductive performance.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] 1. The carbon coating mechanism adopts spraying technology to coat the current collector with a carbon layer. Compared with the roller coating method, the thickness of the carbon layer can be controlled by precisely controlling the spraying amount to reduce the film thickness and reduce the use of carbon layer materials, thereby meeting the requirements of energy conservation, emission reduction and cost reduction. In addition, the current collector is sequentially conveyed to the carbon coating mechanism, the carbon layer baking mechanism, the coating mechanism and the material baking mechanism, so that the current collector can complete the carbon coating process, the carbon layer curing, the coating process with the carbon layer as the base surface layer and the material curing process on the same conveyor line. The various processes are smooth and compact, and the carbon coating mechanism and the coating mechanism are integrated, which can reduce the intermediate transportation links, thereby improving the production efficiency and production quality of the battery.

[0040] 2. After the coating operation, the current collector enters the second installation box and is transported to the second heat transfer roller. Under the action of the second heating device, heat can be transferred to the material on the current collector through contact heat conduction, completing the heat transfer and drying operation, and guiding the current collector for transportation. At the same time, the carbon layer baking mechanism and the material baking mechanism can serve as the turning point of the U-shaped conveying route of the current collector, so that the conveying process of the current collector can be carried out in the vertical space dimension and turned for circular transportation. Compared with the linear conveying line, it can further reduce the footprint of the baking equipment to further improve space utilization.

[0041] 3. The air circulation system removes the liquid vapor generated when the material on the current collector is heated, and continuously takes away the solvent components to reduce the interference of the steam on the current collector inside the oven, thereby improving the baking efficiency and heating uniformity of the current collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of the overall structure of a carbon coating and coating integrated machine in one embodiment of the present application;

[0043] Figure 2 This is a conveying route diagram of the fluid collector in the carbon coating integrated machine in one embodiment of the present application;

[0044] Figure 3 yes Figure 1 A partial enlarged schematic diagram of part A;

[0045] Figure 4 It is a structural diagram of the carbon layer baking mechanism in one embodiment of the present application.

[0046] Figure numerals: 1. unwinding mechanism; 2. current collector; 3. carbon coating mechanism; 31. storage tank; 32. feed pipe; 33. nozzle; 34. support frame; 4. carbon layer baking mechanism; 41. first installation box; 42. first feed port; 43. first discharge port; 44. first heat transfer roller; 45. blower; 46. ventilation box; 5. coating mechanism; 6. material baking mechanism; 61. second installation box; 62. second feed port; 63. second discharge port; 64. second heat transfer roller; 7. winding mechanism; 8. roller press frame; 9. extrusion roller. DETAILED DESCRIPTION

[0047] The following description of exemplary embodiments of the present application is made in conjunction with the accompanying drawings, including various details of the embodiments of the present application to facilitate understanding. These details should be considered as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may 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, descriptions of well-known functions and structures are omitted in the following description.

[0048] It should be noted that the terms "first," "second," and the like in this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the disclosure described herein can be implemented in an order other than that illustrated or described herein. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure.

[0049] In this document, the term "and / or" simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document, unless otherwise specified, generally indicates an "or" relationship between the related objects.

[0050] The following describes a carbon coating and coating integrated machine according to Example 1 of the present application with reference to the accompanying drawings.

[0051] Reference Figures 1 to 4 , among which, Figure 1 and Figure 2As shown, the carbon coating integrated machine includes an unwinding mechanism 1, which unwinds the current collector 2; a carbon coating mechanism 3, which uses a spraying technology to coat a carbon layer on the unwound current collector 2; a carbon layer baking mechanism 4, which dries the carbon layer on the current collector 2; a coating mechanism 5, which coats the material on the side of the current collector 2 coated with the carbon layer; a material baking mechanism 6, which dries the material on the current collector 2; a winding mechanism 7, which winds up the current collector 2; the current collector 2 is transported from the unwinding mechanism 1 to the carbon coating mechanism 3, the carbon layer baking mechanism 4, the coating mechanism 5, the material baking mechanism 6 and the winding mechanism 7 in sequence.

[0052] Specifically, the unwinding mechanism 1 is responsible for unrolling and releasing the collector 2 roll, and then transporting it to the carbon coating mechanism 3 for carbon layer spraying, and then transporting it to the carbon layer baking mechanism 4 for drying, completing the drying operation of the carbon layer material on the collector 2, and then transporting it to the coating mechanism 5, the coating mechanism 5 coats the material on the dried carbon layer of the collector 2, and then transporting it to the material baking mechanism 6 for material drying, completing the drying operation of the coating material on the collector 2, wherein the carbon coating mechanism 3 adopts spraying technology to coat the carbon layer on the collector 2, which can be achieved by precisely controlling the spraying technology compared to the roller coating method. The thickness of the carbon layer is controlled by the coating amount to reduce the film thickness and the use of carbon layer materials, thereby meeting the requirements of energy conservation, emission reduction and cost reduction, and by conveying the current collector 2 to the carbon coating mechanism 3, the carbon layer baking mechanism 4, the coating mechanism 5 and the material baking mechanism 6 in sequence, so that the current collector 2 can complete the carbon coating process, carbon layer solidification, the coating process with the carbon layer as the base surface layer and the material solidification process in sequence on the same conveyor line. The various processes are smooth and compact, and the carbon coating mechanism 3 and the coating mechanism 5 are integrated, which can reduce the intermediate transportation links, thereby improving the production efficiency and production quality of the battery.

[0053] It should be noted that the coating mechanism 5 can adopt a roller coating form or an extrusion coating machine, and can be matched with a roller line to complete the traction and transportation of the collector 2 to provide transportation power for the collector 2. The unwinding mechanism 1 and the winding mechanism 7 can both include a rotatable winding roller and a driving member for driving the winding roller to rotate. The driving member can use a motor as a driving source. Under the action of the motor, the rotating roller in the rotating state can realize the unwinding and expansion or winding and storage of the collector 2, and the coating mechanism 5, the unwinding mechanism 1 and the winding mechanism 7 can all be operated using conventional equipment on the market, and the collector 2 can be selected as a battery collector substrate such as aluminum foil and copper foil, which is not restricted here.

[0054] Specifically, if Figure 1 and Figure 3As shown, the carbon coating mechanism 3 includes a storage tank 31 and a pump body (not shown in the figure). The storage tank 31 is filled with carbon powder slurry (not shown in the figure). The pump body is arranged in the storage tank 31 and is connected to a delivery pipe 32. The pump body is used to transport the carbon powder slurry in the storage tank 31 to the delivery pipe 32. The delivery pipe 32 is connected to a plurality of nozzles 33. By setting the storage tank 31 to provide a storage location for the carbon powder slurry, and matching the pump body and the delivery pipe 32, the carbon powder slurry in the storage tank 31 can be transported to the plurality of nozzles 33 of the delivery pipe 32, so that the carbon powder slurry can be evenly transported from the multiple nozzles 33 to the outer surface of the collector 2, thereby realizing the carbon layer spraying technology.

[0055] It should be noted that the above-mentioned carbon powder slurry is a slurry prepared by mixing carbon layer material powder with a certain amount of film-forming agent, solvent and additive, and the carbon layer material mainly includes conductive carbon black, graphite flakes and graphene, among which the conductive carbon black can be acetylene black. After the slurry is dried by the carbon layer baking mechanism 4, it can form a dense carbon coating layer. This is common knowledge among technicians in this field and will not be elaborated here.

[0056] Furthermore, the carbon coating mechanism 3 also includes a support frame 34, and several nozzles 33 are fixedly installed on the support frame 34. By setting the support frame 34, a stable installation position is provided for the several nozzles 33 to avoid unstable spraying due to shaking of the delivery pipe.

[0057] In one embodiment, if Figure 2 and Figure 4 As shown, the carbon layer baking mechanism 4 includes a first installation box 41, which is provided with a first feed port 42 and a first discharge port 43. A first heat transfer roller 44 is rotatably arranged inside the first installation box 41. The collector 2 is fed from the first feed port 42 and wound around the first heat transfer roller 44, and then discharged from the first discharge port 43. The first heat transfer roller 44 is used to abut the collector 2. A first heating device (not shown in the figure) is provided inside the first installation box 41. The first heating device is used to heat the first heat transfer roller 44. After the carbon layer is sprayed, the collector 2 enters the first installation box 41 and is transported to the first heat transfer roller 44. Under the action of the first heating device, heat can be transferred to the carbon layer on the collector 2 by contact heat conduction, completing the heat transfer and drying operation, and guiding the collector 2 to be transported, so that the transportation process of the collector 2 can be carried out in the vertical space dimension, which can reduce the floor area of the baking equipment to improve space utilization.

[0058] Furthermore, the material baking mechanism 6 includes a second installation box 61, which is provided with a second feed port 62 and a second discharge port 63. A second heat transfer roller 64 is rotatably provided inside the second installation box 61. The collector 2 is discharged from the first discharge port 43 and passes through the coating mechanism 5. It is fed from the second feed port 62 and wound around the second heat transfer roller 64 before being discharged from the second discharge port 63. The second heat transfer roller 64 is used to abut against the collector 2. A second heating device (not shown in the figure) is provided inside the second installation box 61. The second heating device is used to heat the second heat transfer roller 64. After the operation, it enters the second installation box 61 and is transported to the second heat transfer roller 64. Under the action of the second heating device, the heat can be transferred to the material on the collector 2 through contact heat conduction, completing the heat transfer and drying operation, and guiding the collector 2 for transportation. At the same time, the carbon layer baking mechanism 4 and the material baking mechanism 6 can serve as the turning point of the U-shaped conveying route of the collector 2, so that the conveying process of the collector 2 can be carried out in the vertical space dimension and turned for circular transportation. Compared with the linear conveying line, it can further reduce the floor space of the baking equipment to further improve the space utilization.

[0059] It should be noted that the above-mentioned first heating device and second heating device can both adopt electric heating technology (for example, a number of electric heating elements such as electric heating rods or electric heating wires for heating are arranged on the inner wall of the first heat transfer roller 44 or the second heat transfer roller 64) to transfer heat to the outer surface of the heat transfer roller to achieve heat conduction to the collector 2, which will not be elaborated here.

[0060] In addition, the first installation box 41 is connected to a wind circulation system, which is used to remove the liquid vapor generated when the collector 2 is heated. The wind circulation system removes the liquid vapor generated when the material on the collector 2 is heated, and continuously takes away the solvent components to reduce the interference of the steam on the collector 2 inside the oven, thereby improving the baking efficiency and heating uniformity of the collector 2.

[0061] Specifically, the air circulation system includes a blower 45 and a ventilation box 46. The blower 45 is arranged outside the first installation box 41, and the ventilation box 46 is connected and arranged between the blower 45 and the first installation box 41. The blower 45 cooperates with the ventilation box 46 to send external air into the first installation box 41 through the ventilation box 46.

[0062] Furthermore, a number of heating tubes (not shown in the figure) for generating heat are provided inside the ventilation box 46. The heating tubes heat the air sent into the ventilation box 46 by generating heat to form high-temperature hot air. After the high-temperature hot air enters the first installation box 41, it can continuously dry the material on the collector 2 with hot air, thereby further improving the baking efficiency of the baking equipment.

[0063] In addition, if Figure 1 and Figure 2 As shown, in order to improve the flatness of the material on the current collector 2, a roller pressing frame 8 is provided between the material baking mechanism 6 and the winding mechanism 7. The roller pressing frame 8 is rotatably connected to two squeezing rollers 9. The two squeezing rollers 9 are symmetrically arranged up and down. Both squeezing rollers 9 are used to abut the current collector 2. When the current collector 2 passes between the two squeezing rollers 9, the two squeezing rollers 9 can provide guidance to the current collector 2 while rolling and flattening the dried material on the current collector 2, so as to improve the flatness of the material on the current collector 2 and improve the production quality of the product. Example

[0064] A carbon coating integrated machine includes a carbon coating mechanism 3, which adopts gravure printing technology to coat a carbon layer on the unwinding current collector; a carbon layer baking mechanism 4, which dries the carbon layer on the current collector; a coating mechanism 5, which coats the material on the side of the current collector coated with the carbon layer; a material baking mechanism 6, which dries the material on the current collector; a winding mechanism 7, which winds up the current collector; the current collector is transported from the unwinding mechanism 1 to the carbon coating mechanism 3, the carbon layer baking mechanism 4, the coating mechanism 5, the material baking mechanism 6 and the winding mechanism 7 in sequence. The difference from Example 1 is that the carbon coating mechanism 3 adopts a different coating method. Compared with the roller coating method, the gravure printing technology can accurately control the thickness and uniformity of the carbon layer, ensure that the carbon layer forms good contact with the current collector surface, thereby further improving the conductive performance.

[0065] It should be noted that gravure printing is a technology that covers the entire surface of the printing plate with ink, then uses a special scraper mechanism to remove the ink from the blank area, leaving the ink only in the cells of the graphic part, and then transfers the ink to the surface of the substrate (such as the current collector) under greater pressure to obtain a printed product. This technology can be directly applied to the battery current collector scenario.

[0066] The above specific embodiments do not constitute a limitation on the scope of protection of this application. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application shall be included within the scope of protection of this application.

Claims

1. A carbon coating machine, characterized in that: include: An unwinding mechanism (1) for unwinding the current collector (2); A carbon coating mechanism (3) which uses a spray coating technique to coat a carbon layer on the unwound current collector (2); A carbon layer baking mechanism (4) for drying the carbon layer on the current collector (2); A coating mechanism (5) is used to coat the material on the side of the current collector (2) coated with the carbon layer; a material baking mechanism (6) for drying the material on the current collector (2); a winding mechanism (7) for winding the current collector (2); The current collector (2) is transported from the unwinding mechanism (1) to the carbon coating mechanism (3), the carbon layer baking mechanism (4), the coating mechanism (5), the material baking mechanism (6), and the winding mechanism (7) in sequence.

2. The carbon coating machine according to claim 1, characterized in that: The carbon coating mechanism (3) includes a storage tank (31) and a pump body. The storage tank (31) is filled with carbon powder slurry. The pump body is arranged in the storage tank (31) and is connected to a delivery pipe (32). The pump body is used to transport the carbon powder slurry in the storage tank (31) to the delivery pipe (32). The delivery pipe (32) is connected to a plurality of nozzles (33).

3. The carbon coating machine according to claim 2, characterized in that: The carbon coating mechanism (3) further comprises a support frame (34), and the plurality of nozzles (33) are fixedly mounted on the support frame (34).

4. The carbon coating machine according to claim 1, characterized in that: The carbon layer baking mechanism (4) includes a first installation box (41), the first installation box (41) is provided with a first feed port (42) and a first discharge port (43), a first heat transfer roller (44) is rotatably arranged inside the first installation box (41), the collector (2) is fed from the first feed port (42) and wound around the first heat transfer roller (44), and then discharged from the first discharge port (43), the first heat transfer roller (44) is used to abut against the collector (2), and a first heating device is provided inside the first installation box (41), the first heating device is used to heat the first heat transfer roller (44).

5. The carbon coating and coating integrated machine according to claim 4, characterized in that: The material baking mechanism (6) includes a second installation box (61), the second installation box (61) is provided with a second material feed port (62) and a second material discharge port (63), a second heat transfer roller (64) is rotatably arranged inside the second installation box (61), the collector (2) is discharged from the first material discharge port (43) and passes through the coating mechanism (5), is fed from the second material feed port (62) and is wound around the second heat transfer roller (64), and then discharged from the second material discharge port (63), the second heat transfer roller (64) is used to abut the collector (2), and a second heating device is provided inside the second installation box (61), the second heating device is used to heat the second heat transfer roller (64).

6. The carbon coating and coating integrated machine according to claim 4, characterized in that: The first installation box (41) is connected to an air circulation system, and the air circulation system is used to remove liquid vapor generated when the current collector (2) is heated.

7. The carbon coating and coating integrated machine according to claim 6, characterized in that: The air circulation system comprises a blower (45) and a ventilation box (46); the blower (45) is arranged outside the first installation box (41); and the ventilation box (46) is arranged in communication between the blower (45) and the first installation box (41).

8. The carbon coating and coating integrated machine according to claim 7, characterized in that: A plurality of heating tubes for generating heat are arranged inside the ventilation box (46).

9. The carbon coating and coating integrated machine according to claim 1, characterized in that: A roller press frame (8) is provided between the material baking mechanism (6) and the winding mechanism (7), and the roller press frame (8) is rotatably connected to two squeezing rollers (9). The two squeezing rollers (9) are symmetrically arranged up and down, and both of the squeezing rollers (9) are used to abut against the current collector (2).

10. A carbon coating machine, characterized in that: include: An unwinding mechanism (1) for unwinding the current collector (2); A carbon coating mechanism (3) which uses a gravure printing technique to coat a carbon layer on the unwound current collector (2); A carbon layer baking mechanism (4) for drying the carbon layer on the current collector (2); A coating mechanism (5) is used to coat the material on the side of the current collector (2) coated with the carbon layer; a material baking mechanism (6) for drying the material on the current collector (2); a winding mechanism (7) for winding the current collector (2); The current collector (2) is transported from the unwinding mechanism (1) to the carbon coating mechanism (3), the carbon layer baking mechanism (4), the coating mechanism (5), the material baking mechanism (6), and the winding mechanism (7) in sequence.

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