Coating device for battery film processing

Abstract

The utility model relates to a coating device for battery film processing in the technical field of battery production equipment, which comprises a coating table, an unwinding roller and a winding roller are respectively arranged at two ends of the coating table, a coating component is arranged on the coating table, the coating component comprises a door-shaped support and a coating roller, a material roller is matched above the coating roller, and the material roller is arranged on the door-shaped support. A material storage box is fixed to the position, above the material roller, of the door-shaped support, the material roller comprises a roller body, a material cavity is formed in the roller body, the roller body is wrapped with a material bonding layer, the material bonding layer makes contact with the coating roller, a plurality of discharging holes are formed in the position, corresponding to the material bonding layer, of the roller body, a feeding pipe is arranged in the center of one end of the roller body, and the feeding pipe is connected with a material guiding pipe through a rotating connector. And the material guide pipe is communicated with the material storage box. The coating is not exposed in the air in the process of transferring from the storage box to the material roller, so that the pollution of the coating is avoided, the uniformity of the coating is improved, a battery film can be flattened before coating, and the coating effect is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery production equipment, and in particular relates to a coating device for battery film processing. Background Art

[0002] Batteries are widely used in people's daily lives. In the production and processing of lithium batteries, in order to improve production efficiency and effectively extend service life, a coating device is needed to coat and protect the batteries; Patent No. CN207971021 discloses a coating roller for solar cell back film. It includes a metering roller, a glue blocking device, a rubber transfer roller, a metering transfer roller, a coating roller and a rubber pressure roller. A metering transfer roller is provided on one side of the metering roller, a rubber transfer roller is provided on the upper end of the metering transfer roller, a coating roller is provided on the right side of the rubber transfer roller, and a rubber pressure roller is provided on the upper end of the coating roller. The mixed adhesive is applied to the surface of a substrate such as a film by the coating roller as the roller rotates to form a layer of adhesive coating. The patent applies the mixed adhesive to the coating roller through a rubber transfer roller. The mixed adhesive is transferred multiple times through the metering roller, rubber transfer roller, and the surface of the metering transfer roller before it can be stained on the coating roller. The large number of transfers can easily cause the mixed adhesive to dry or be stained with impurities, affecting the coating effect, causing problems such as uneven coating, low coating efficiency, and easy waste of slurry. Therefore, a coating device for battery film processing is needed to solve the above technical problems. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, the utility model provides a coating device for processing battery thin films, including a coating station, a reeling roller and a winding roller are respectively arranged at both ends of the coating station, a coating assembly is arranged on the coating station, and the coating assembly includes a door-shaped bracket and a coating roller, two vertical frames of the door-shaped bracket are fixed on both sides of the coating station, and the two ends of the coating roller are rotatably connected to the corresponding vertical frames through bearings, wherein one end of the coating roller passes through the vertical frame and is connected to a stepping motor, and a material Roller, a material storage box is fixed on the door-shaped bracket above the material roller, and the two ends of the material roller are rotatably connected to the corresponding vertical frame through bearings, and the material roller includes a roller body, a material cavity is provided in the roller body, and a layer of sticky material layer is wrapped outside the roller body, and the sticky material layer contacts the coating roller. The roller body corresponding to the sticky material layer is provided with a plurality of discharge holes, and the discharge holes are connected with the material cavity. A feed pipe is provided at the center of one end of the roller body, and the feed pipe is connected with a guide pipe through a rotary joint, and the guide pipe is connected with the material storage box, and a material pump is provided on the guide pipe. The paint in the storage box enters the material cavity of the material roller through the guide pipe, and the paint infiltrates the sticky material layer through the discharge hole. During the rotation of the coating roller, it continuously contacts the sticky material layer of the material roller, and is stained with the paint infiltrated by the sticky material layer, and drives the material roller to rotate continuously, so that the paint infiltrated by the sticky material layer on the material roller is more uniform, and the paint infiltrated on the coating roller is also more uniform, which is beneficial to the coating roller to coat the battery film.

[0004] Preferably, a feed hopper is provided on the top of the storage box, a stirring rod is provided in the storage box, and the stirring rod is connected to a stirring motor.

[0005] Preferably, a scraper assembly is provided in the material roller, and the scraper assembly includes a rotating shaft, and the rotating shaft coincides with the central axis of the material roller. One end of the rotating shaft passes through the material roller and is connected to a scraper motor. A fixed rod is fixed on the rotating shaft in the material roller, and the fixed rod is connected to a scraper rod, and the scraper rod contacts the inner wall of the material cavity. This arrangement can stir the coating in the material cavity of the material roller to ensure its uniformity, and at the same time avoid clogging of the discharge hole to affect the coating effect.

[0006] Preferably, a flattening assembly is provided on the coating platform between the coating assembly and the unwinding roller, and the flattening assembly includes two columns and a flattening roller, the two columns are respectively fixed on both sides of the coating platform, and the flattening roller is arranged between the two columns, wherein one end of the flattening roller is connected to a rotating motor. The battery film is flattened before coating, thereby improving the coating effect.

[0007] Preferably, the flattening roller is provided with V-shaped convex patterns. By providing the V-shaped convex patterns, when the V-shaped convex patterns rotate with the flattening roller, the battery film in contact with the flattening roller can be flattened efficiently.

[0008] Preferably, the two uprights are provided with vertical grooves, the two grooves are provided with screws, the two ends of the two screws are rotatably connected to the grooves through bearings, the upper end of one of the screws is fixedly connected to a forward and reverse motor, the lower ends of the two screws are fixedly connected to sprockets after passing through the coating table, the two sprockets are connected through a matching chain transmission, the two screws located in the grooves are threadedly matched with sliders, the heights of the two sliders are consistent, and the two sliders are fixedly provided with connecting plates, the connecting plates extend out of the grooves, the two ends of the flattening roller are rotatably connected to the corresponding connecting plates through bearings, and one end of the flattening roller is connected to the rotating motor after passing through the connecting plate. The arrangement here can drive the two screws to rotate synchronously forward and reversely through the forward and reverse rotation of the forward and reverse motor, and the two sliders drive the flattening roller to move up and down, ensuring that the flattening roller can perform reliable flattening operation with the battery film.

[0009] The utility model also includes other components that enable a battery film coating device to be used normally, such as a stepper motor control component, a material pump control component, a stirring motor control component, a scraper motor control component, a rotating motor control component, and a forward and reverse motor control component, all of which are conventional technical means in the field. In addition, the devices or components not limited in the utility model, such as rotary joints, adhesive layers, etc., all adopt conventional technical means and conventional equipment in the field.

[0010] The utility model has the beneficial effect that the coating is not exposed to the air during the transfer from the storage box to the material roller, thus avoiding the pollution of the coating. At the same time, the setting of the stirring device improves the uniformity of the coating, and the battery film can be flattened before coating, further improving the coating effect. The coating efficiency is high, which is beneficial to the production of batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic structural diagram of a coating device for processing a battery thin film according to the utility model;

[0013] Figure 2 for Figure 1 The view from the AA point in the middle;

[0014] Figure 3 for Figure 1 The view from the middle BB;

[0015] Figure 4 for Figure 1 Cross-sectional view of the center roller.

[0016] In the figure: 1. coating table; 2. column; 3. flattening roller; 4. forward and reverse motor; 5. door-type bracket; 6. coating roller; 7. adhesive layer; 8. storage box; 9. feed hopper; 10. material guide pipe; 11. embossing; 12. screw; 13. slider; 14. connecting plate; 15. rotating motor; 16. chain; 17. stepping motor; 18. stirring motor; 19. scraper motor; 20. discharge hole; 21. rotating shaft; 22. scraper rod; 23. material pump. DETAILED DESCRIPTION

[0017] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0018] Example

[0019] like Figure 1-4 As shown, the utility model provides a coating device for processing a battery thin film, comprising a coating station 1, wherein both ends of the coating station 1 are respectively provided with an unwinding roller and a winding roller, wherein a coating assembly is arranged on the coating station 1, wherein the coating assembly comprises a door-shaped bracket 5 and a coating roller 6, wherein two vertical frames of the door-shaped bracket 5 are fixed on both sides of the coating station 1, wherein both ends of the coating roller 6 are rotatably connected to the corresponding vertical frames through bearings, wherein one end of the coating roller 6 passes through the vertical frame and is connected to a stepping motor 17, wherein a material roller is matched above the coating roller 6, and the material roller above the material roller A material storage box 8 is fixed on the door-shaped bracket 5, and both ends of the material roller are rotatably connected to the corresponding vertical frames through bearings respectively. The material roller includes a roller body, a material cavity is provided in the roller body, and a sticky layer 7 is wrapped outside the roller body, and the sticky layer is in contact with the coating roller 7. A plurality of discharge holes 20 are provided on the roller body corresponding to the sticky layer, and the discharge holes 20 are connected with the material cavity. A feed pipe is provided at the center of one end of the roller body, and the feed pipe is connected with a material guide pipe 10 through a rotary joint. The material guide pipe 10 is connected with the material storage box 8, and a material pump 23 is provided on the material guide pipe 10. The paint in the storage box enters the material cavity of the material roller through the material guide pipe 10, and the paint infiltrates the sticky layer through the discharge hole. During the rotation of the coating roller 6, it continuously contacts the sticky layer 7 of the material roller, is stained with the paint infiltrated by the sticky layer, and drives the material roller to rotate continuously, so that the paint infiltrated by the sticky layer 7 on the material roller is more uniform, and the paint stained on the coating roller 6 is also more uniform, which is beneficial to the coating of the battery film by the coating roller 6.

[0020] A feed hopper 9 is provided on the top of the material storage box 8 , and a stirring rod is provided inside the material storage box 8 , and the stirring rod is connected to a stirring motor 18 .

[0021] The material roller 7 is provided with a scraper assembly, which includes a rotating shaft 21, which coincides with the central axis of the material roller, and one end of the rotating shaft 21 passes through the material roller and is connected to a scraper motor 19, and a fixed rod is fixed on the rotating shaft 21 in the material roller 7, and the fixed rod is connected to a scraper rod 22, and the bristles fixed on the scraper rod 22 are in contact with the inner wall of the material cavity. This arrangement can stir the paint in the material cavity of the material roller to ensure its uniformity, and at the same time avoid clogging of the discharge hole 20 to affect the coating effect.

[0022] A flattening assembly is provided on the coating platform 1 between the coating assembly and the unwinding roller, and the flattening assembly includes two columns 2 and a flattening roller 3. The two columns 2 are respectively fixed on both sides of the coating platform 1, and the flattening roller 3 is arranged between the two columns 2, wherein one end of the flattening roller 3 is connected to a rotating motor 15. The battery film is flattened before coating, which improves the coating effect.

[0023] The flattening roller 3 is provided with a V-shaped convex pattern 11. By providing the V-shaped convex pattern 11, when the V-shaped convex pattern 11 rotates with the flattening roller 3, the battery film in contact with the flattening roller can be flattened efficiently.

[0024] The two uprights 2 are provided with vertical grooves, and the two grooves are provided with screws 12. The two ends of the two screws 12 are rotatably connected to the grooves through bearings. The upper end of one of the screws 12 is fixedly connected to the forward and reverse motor 4. The lower ends of the two screws 12 are fixedly connected to sprockets after passing through the coating table 1. The two sprockets are connected by a matching chain 16. The two screws 12 located in the grooves are threadedly matched with sliders 13. The heights of the two sliders 13 are consistent. The two sliders 13 are fixedly provided with connecting plates 14, which extend out of the grooves. The two ends of the flattening roller 3 are rotatably connected to the corresponding connecting plates 14 through bearings, and one end of the flattening roller 3 is connected to the rotating motor 15 after passing through the connecting plate 14. The arrangement at this place can drive the two screws 12 to rotate synchronously forward and reversely through the forward and reverse rotation of the forward and reverse motor 4, and the two sliders 13 drive the flattening roller 3 to move up and down, ensuring that the flattening roller 3 can perform reliable flattening operation with the battery film. The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A coating device for battery thin film processing, comprising a coating station, wherein both ends of the coating station are respectively provided with a winding roller and a reeling roller, Features: The coating platform is provided with a coating assembly, which comprises a gate-type bracket and a coating roller, wherein the two vertical frames of the gate-type bracket are fixed on both sides of the coating platform, and the two ends of the coating roller are rotatably connected with the corresponding vertical frames through bearings, wherein one end of the coating roller passes through the vertical frame and is connected with a stepping motor, and a material roller is matched above the coating roller, and a material storage box is fixed on the gate-type bracket above the material roller, and the two ends of the material roller are rotatably connected with the corresponding vertical frames through bearings, respectively, and the material roller comprises a roller body, a material cavity is provided in the roller body, and a layer of adhesive layer is wrapped around the roller body, and the adhesive layer contacts with the coating roller, and a plurality of discharge holes are provided on the roller body corresponding to the adhesive layer, and the discharge holes are connected with the material cavity, and a feed pipe is provided at the center of one end of the roller body, and the feed pipe is connected with a material guide pipe through a rotating joint, and the material guide pipe is connected with the material storage box, and a material pump is provided on the material guide pipe.

2. A coating device for battery thin film processing according to claim 1, Features: A feeding hopper is arranged on the top of the material storage box, a stirring rod is arranged in the material storage box, and the stirring rod is connected with a stirring motor.

3. A coating device for battery thin film processing according to claim 1, Features: A scraper assembly is provided in the material roller, and the scraper assembly includes a rotating shaft, which coincides with the central axis of the material roller. One end of the rotating shaft passes through the material roller and is connected to a scraper motor. A fixed rod is fixed on the rotating shaft in the material roller, and the fixed rod is connected to a scraper rod. The scraper rod contacts the inner wall of the material cavity.

4. A coating device for battery thin film processing according to claim 1, Features: A flattening assembly is provided on the coating platform between the coating assembly and the unwinding roller. The flattening assembly includes two columns and a flattening roller. The two columns are respectively fixed on both sides of the coating platform. The flattening roller is arranged between the two columns, wherein one end of the flattening roller is connected to a rotating motor.

5. A coating device for battery thin film processing according to claim 4, Features: The flattening roller is provided with V-shaped convex patterns.

6. A coating device for battery thin film processing according to claim 4, Features: The two columns are each provided with a vertical groove, and the two grooves are each provided with a screw rod, and the two ends of the two screw rods are rotatably connected to the grooves through bearings, and the upper end of one of the screw rods is fixedly connected to a forward and reverse motor, and the lower ends of the two screw rods are fixedly connected to sprockets after passing through the coating table, and the two sprockets are connected through a matching chain transmission, and the two screw rods located in the grooves are threadedly matched with sliders, and the heights of the two sliders are consistent, and connecting plates are fixedly provided on the two sliders, and the connecting plates extend out of the grooves, and the two ends of the flattening roller are rotatably connected to the corresponding connecting plates through bearings, and one end of the flattening roller is connected to the rotating motor after passing through the connecting plate.

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