A graphene heating film fabrication slurry coating device

By introducing a scraper mechanism and a drying component into the graphene heating film fabrication device, the problem of uneven slurry distribution was solved, achieving uniform coating thickness and improved production efficiency.

CN224443568UActive Publication Date: 2026-07-03JIANGXI JINWEI ELECTRONIC TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI JINWEI ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-03

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Abstract

This utility model relates to the field of slurry coating technology, and more particularly to a slurry coating device for producing graphene heating films. The device includes a worktable, a mounting frame, a first screw, a first motor, a moving frame, a coating roller, and a feeding pipe. The mounting frame is fixedly connected to the worktable, and the first motor is mounted on the mounting frame. A first screw is mounted on the output shaft of the first motor via a coupling. The moving frame is threaded onto the first screw, and the coating roller is rotatably mounted on the moving frame. The feeding pipe is connected to the moving frame. By starting a second motor, the output shaft of the second motor drives the second screw to rotate. The second screw drives a scraper to move backward, thereby scraping away excess slurry on the coating roller, ensuring a consistent coating thickness.
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Description

Technical Field

[0001] This utility model relates to the field of slurry coating technology, and in particular to a slurry coating device for producing graphene heating films. Background Technology

[0002] Graphene heating film is a new type of heating material made by utilizing the excellent electrical and thermal conductivity of graphene. The process of making graphene heating film includes steps such as preparing graphene slurry and coating.

[0003] Patent CN216322927U discloses an automatic coating device for cardboard lamination. It includes a processing table and a housing. The housing is mounted on the top of the processing table, and a hydraulic cylinder is mounted on the top of the housing. A hydraulic rod is provided at the output end of the hydraulic cylinder, and a coating roller is mounted at the bottom end of the hydraulic rod. A rotary motor is mounted at one end of the coating roller, and a liquid film storage tank is mounted on one side of the top of the housing. When using this patent, a pump draws liquid film from the storage tank and introduces it into the coating roller. The hydraulic cylinder drives the coating roller to rise and fall via the hydraulic rod, allowing the coating roller to apply the liquid slurry onto the substrate. However, this prior art still has some shortcomings in practical use. Because the prior art draws liquid film from the storage tank and introduces it into both ends of the coating roller, allowing the liquid slurry to gradually adhere to all the coating portions of the roller, but lacks a slurry scraping mechanism, the liquid slurry is unevenly distributed on the coating roller, resulting in inconsistent film thickness on the final substrate.

[0004] Therefore, there is a need for a graphene heating film fabrication slurry coating device with slurry scraping function. Utility Model Content

[0005] To overcome the shortcomings of the existing patents, which involve pumping liquid film from a liquid film storage tank and introducing it into both ends of a coating roller, allowing the liquid slurry to gradually adhere to all coating portions of the coating roller, but lack a slurry scraping mechanism, resulting in uneven distribution of the liquid slurry on the coating roller and inconsistent film thickness on the substrate, this utility model provides a graphene heating film manufacturing slurry coating device with a slurry scraping function.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a graphene heating film preparation slurry coating device, comprising a worktable, a mounting frame, a first screw, a first motor, a movable frame, a coating roller, and a feeding pipe. The mounting frame is fixedly connected to the worktable, and the first motor is mounted on the mounting frame. A first screw is mounted on the output shaft of the first motor via a coupling. A movable frame is threaded onto the first screw, and a coating roller is rotatably mounted on the movable frame. A feeding pipe is connected to the movable frame. The device also includes a fixed frame, a guide rod, a second screw, a second motor, a scraper, and collection boxes. A fixed frame is fixedly connected to the movable frame, and a guide rod is fixedly connected to the fixed frame. A second motor is mounted on the fixed frame, and a second screw is mounted on the output shaft of the second motor via a coupling. A scraper is threaded onto the second screw and slides on the guide rod. Two collection boxes are secured to the worktable.

[0007] Furthermore, it also includes a fixed base, a sliding rod, a drying assembly, an elastic element, and a guide frame. Two guide frames are fixedly connected to the worktable, and a fixed base is fixedly connected to the movable frame. A sliding rod is slidably installed on the fixed base. The sliding rod slides within the adjacent guide frame. An elastic element is sleeved on the sliding rod. The two ends of the elastic element are connected to the fixed base and the sliding rod, respectively. A drying assembly is installed between the two sliding rods.

[0008] Furthermore, it also includes a slide, a top plate, and a cylinder. The cylinder is installed inside the worktable, and the slide is installed on the extension rod of the cylinder. Two top plates are fixedly connected to the slide.

[0009] Furthermore, it also includes guide rods, with two guide rods fixedly connected inside the worktable, and the slide slides on the two guide rods.

[0010] Furthermore, the feeding pipe has a multi-forked structure.

[0011] Furthermore, four foot pads are provided on the workbench.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By starting the second motor, the output shaft of the second motor drives the second screw to rotate, and the second screw drives the scraper to move backward, thereby causing the scraper to scrape off the excess slurry on the coating roller, thus ensuring that the coating thickness is consistent.

[0013] 2. By activating the drying assembly, the moving frame moves the fixed base, sliding rod, drying assembly, and the components above it. As the sliding rod moves, it is squeezed by the guide frame, causing the sliding rod to move the drying assembly downwards, positioning the drying assembly above the substrate. This allows the coated substrate to be dried, thereby accelerating the curing speed of the slurry and improving production efficiency.

[0014] 3. By activating the cylinder, the cylinder's extension rod extends, causing the slide and two top plates to move upwards. The guide rod guides the two top plates to push out the substrate, thereby achieving a rapid discharge effect. This makes it easier for workers to remove the coated substrate and speeds up the collection efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the worktable, first motor, and first screw of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the second motor, scraper, and collection box of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the fixing frame, guide rod, and second screw.

[0019] Figure 5 This is a three-dimensional structural diagram of the components of this utility model, including the fixing base, sliding rod, and drying assembly.

[0020] Figure 6 This is a three-dimensional structural diagram of the drying component, elastic element, and guide frame of this utility model.

[0021] Figure 7 This is a three-dimensional structural diagram of the guide rod, slide block, and top plate of this utility model.

[0022] Component names and serial numbers in the diagram: 1-Workbench, 2-Mounting bracket, 3-First screw, 4-First motor, 5-Moving frame, 6-Coating roller, 7-Feeding pipe, 8-Fixed frame, 9-Guide rod, 10-Second screw, 11-Second motor, 12-Scraper, 13-Collection box, 14-Fixed seat, 15-Sliding rod, 16-Drying assembly, 17-Elastic element, 18-Guide frame, 19-Guide rod, 20-Slide seat, 21-Top plate, 22-Cylinder. Detailed Implementation

[0023] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Example 1: A device for coating a slurry in the fabrication of a graphene heating film, see reference. Figures 1-7As shown, the system includes a workbench 1, a mounting frame 2, a first screw 3, a first motor 4, a moving frame 5, a coating roller 6, and a feeding pipe 7. The mounting frame 2 is welded to the top of the workbench 1. The first motor 4 is bolted to the upper left side of the mounting frame 2. The first screw 3 is mounted on the output shaft of the first motor 4 via a coupling, and rotates on the mounting frame 2. The moving frame 5 is threaded onto the first screw 3 and slides on the mounting frame 2. The coating roller 6 is rotatably mounted on the lower part of the moving frame 5, and a feeding pipe 7 is connected to the moving frame 5. The tube 7 also includes a fixed frame 8, a guide rod 9, a second screw 10, a second motor 11, a scraper 12, and a collection box 13. The fixed frame 8 is fixedly connected to the movable frame 5. The guide rod 9 is fixedly connected to the right side of the fixed frame 8. The second motor 11 is bolted to the front left side of the fixed frame 8. The second screw 10 is installed on the output shaft of the second motor 11 through a coupling. The scraper 12 is threaded on the second screw 10 and slides on the guide rod 9. Collection boxes 13 are clamped on both the left and right sides of the top of the worktable 1. The collection boxes 13 are located below the coating roller 6.

[0025] See Figures 1-6 As shown, the feeding pipe 7 has a multi-forked structure, which allows the slurry to drip evenly onto the coating roller 6.

[0026] See Figures 1-3 As shown, the bottom of the workbench 1 is equipped with four feet to prevent the workbench 1 from directly contacting the ground and to avoid wear and tear on the workbench 1.

[0027] When performing slurry coating, the substrate to be coated is first placed on the workbench 1. Then, the external infusion pipe is connected to the feeding pipe 7, allowing the external infusion pipe to deliver the slurry into the feeding pipe 7. The slurry is then injected into the moving frame 5 through the feeding pipe 7, causing it to drip onto the coating roller 6. The coating roller 6 then adheres to the slurry. Subsequently, the second motor 11 is started. The output shaft of the second motor 11 drives the second screw 10 to rotate. The second screw 10 drives the scraper 12 to move backward, thereby causing the scraper 12 to move the coating roller 6 backward. Excess slurry is scraped off to ensure a consistent coating thickness. The scraped slurry falls into the collection box 13. Then, the first motor 4 is started. The output shaft of the first motor 4 drives the first screw 3 to rotate. The first screw 3 drives the moving frame 5 and the coating roller 6 to move to the right. The guide rod 9 acts as a guide. As the coating roller 6 moves, it comes into contact with the substrate to be coated and is squeezed and rotated by it, so that the coating roller 6 evenly coats the slurry onto the substrate to be coated. After the coating is completed, the first motor 4 is turned off, and the coated substrate can be taken out.

[0028] Example 2: Based on Example 1, refer to Figures 4-6As shown, it also includes a fixed base 14, a sliding rod 15, a drying assembly 16, an elastic element 17, and a guide frame 18. The top of the worktable 1 is symmetrically and fixedly connected to the guide frame 18, which is U-shaped. The front and rear sides of the movable frame 5 are fixedly connected to the fixed base 14. The sliding rod 15 is slidably arranged on the fixed base 14. The sliding rod 15 slides in the adjacent guide frame 18. The elastic element 17 is sleeved on the sliding rod 15. The two ends of the elastic element 17 are respectively connected to the fixed base 14 and the sliding rod 15. The drying assembly 16 is arranged between the two sliding rods 15. The drying assembly 16 is located to the left of the coating roller 6.

[0029] When the moving frame 5 moves, the drying assembly 16 is activated. The moving frame 5 drives the fixed base 14, the sliding rod 15, and the drying assembly 16 and its upper components to move. As the sliding rod 15 moves, it is squeezed by the guide frame 18, causing the sliding rod 15 to drive the drying assembly 16 to move downward. The elastic element 17 is compressed accordingly, so that the drying assembly 16 is located above the substrate. This allows the coated substrate to be dried, thereby accelerating the curing speed of the slurry and improving production efficiency. When the sliding rod 15 moves to the rightmost position of the guide frame 18, the elastic element 17 rebounds, causing the sliding rod 15 and the drying assembly 16 to move upward and reset.

[0030] See Figure 1 and Figure 7 As shown, it also includes a slide 20, a top plate 21 and a cylinder 22. The cylinder 22 is installed at the bottom of the worktable 1 by means of bolt connection. The slide 20 is installed on the telescopic rod of the cylinder 22. Two top plates 21 are installed on the top of the slide 20 by means of welding.

[0031] After the coating is completed, the cylinder 22 is activated. The extension rod of the cylinder 22 extends, causing the slide 20 and the two top plates 21 to move upward. The guide rod 19 guides the two top plates 21 to push out the substrate, thereby achieving a rapid discharge effect. This makes it easier for workers to remove the coated substrate and speeds up the collection efficiency. After collection is completed, the extension rod of the cylinder 22 retracts, causing the slide 20 and the two top plates 21 to reset. After resetting, the cylinder 22 is turned off. The above operation can be repeated to carry out the next slurry coating operation.

[0032] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A graphene heating film preparation slurry coating device, comprising a worktable (1), a mounting frame (2), a first screw (3), a first motor (4), a moving frame (5), a coating roller (6), and a feeding pipe (7), wherein the worktable (1) is fixedly connected to the mounting frame (2), the mounting frame (2) is mounted on the mounting frame (2), the first screw (3) is mounted on the output shaft of the first motor (4) via a coupling, the moving frame (5) is threaded onto the first screw (3), the coating roller (6) is rotatably mounted on the moving frame (5), and the feeding pipe (7) is connected to the moving frame (5), characterized in that: It also includes a fixed frame (8), a guide rod (9), a second screw (10), a second motor (11), a scraper (12), and a collection box (13). The fixed frame (8) is fixedly connected to the movable frame (5). The guide rod (9) is fixedly connected to the fixed frame (8). The second motor (11) is installed on the fixed frame (8). The second screw (10) is installed on the output shaft of the second motor (11) through a coupling. The scraper (12) is threaded on the second screw (10). The scraper (12) slides on the guide rod (9). Two collection boxes (13) are clamped on the worktable (1). 2.The graphene heating film manufacturing slurry coating device of claim 1, wherein: It also includes a fixed seat (14), a sliding rod (15), a drying component (16), an elastic element (17), and a guide frame (18). Two guide frames (18) are fixedly connected to the workbench (1), and a fixed seat (14) is fixedly connected to the movable frame (5). A sliding rod (15) is slidably arranged on the fixed seat (14). The sliding rod (15) slides in the adjacent guide frame (18). An elastic element (17) is sleeved on the sliding rod (15). The two ends of the elastic element (17) are respectively connected to the fixed seat (14) and the sliding rod (15). A drying component (16) is arranged between the two sliding rods (15). 3.The graphene heating film manufacturing slurry coating device of claim 2, wherein: It also includes a slide (20), a top plate (21) and a cylinder (22). The cylinder (22) is installed in the worktable (1). The slide (20) is installed on the telescopic rod of the cylinder (22). Two top plates (21) are fixedly connected to the slide (20). 4.The graphene heating film manufacturing slurry coating device of claim 3, wherein: It also includes guide rods (19), two guide rods (19) are fixedly connected inside the worktable (1), and the slide (20) slides on the two guide rods (19). 5.The graphene heating film manufacturing slurry coating device of claim 4, wherein: The feeding pipe (7) has a multi-forked structure. 6.The graphene heating film manufacturing slurry coating device of claim 5, wherein: Four feet are provided on the workbench (1).