Conveying device for lithium battery foil coating adhesive production

By adjusting the distance between the brush plate and the foil and replacing the brush plate with a pin, combined with a water pump transmission pipe, uniform coating of the lithium battery foil adhesive is achieved, solving the problem of uneven coating and improving battery performance and safety.

CN223602787UActive Publication Date: 2025-11-28CYG NEW ENERGY MATERIAL RESEARCH INSTITUTE (GUANGDONG) CO LTD
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Patent Information

Application Number
CN202423079117.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-11-28
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Existing conveying devices have difficulty adjusting the coating thickness according to different foil materials in the production of lithium battery foil adhesives, resulting in uneven coating and affecting battery performance and safety.

Method used

A conveying device for producing adhesive coatings on lithium battery foil was designed. By adjusting the distance between the brush plate and the foil, the brush plate can be replaced using a movable frame and pins. Combined with a water pump and a transmission pipe, the device achieves automated transmission and uniform coating of the coating material, adapting to different material and process requirements, and ensuring that the adhesive forms an ideal coating layer on the foil.

Benefits of technology

It achieves uniform coating of adhesive on the foil surface, improves the performance and quality of lithium batteries, prevents foil damage or deformation, ensures the uniformity and stability of the coating layer, and adapts to diverse production needs.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the field of conveying devices, in particular to a conveying device for lithium battery foil adhesive coating production, which comprises a processing table, a coating component and a conveying component. A conveying assembly used for conveying coating to the lithium battery foil is installed in the machining table, a coating assembly comprises fixing plates, a sleeve plate, a movable frame, a limiting bolt, a conveying plate, a plug pin, a brush plate, a storage box and a conveying pipe, the fixing plates are symmetrically arranged on the outer wall of the machining table, the sleeve plate is arranged at the upper ends of the fixing plates, and the movable frame is arranged in the sleeve plate. Two groups of limiting bolts are arranged at the upper end of the movable frame; according to the utility model, the sleeve plate is connected with the movable frame to adjust the distance between the brush plate and the foil, so that the coating of an adhesive on the surface of the foil is more uniform, the adhesive is prevented from being too thick or too thin, the requirements of different materials and processes are met, and the performance and quality of a lithium battery are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of conveying device, especially a conveying device for lithium battery foil adhesive production. BACKGROUND

[0002] Lithium battery foil adhesive is a kind of key material used in the manufacturing process of lithium ion battery, it is mainly used to tightly bond active material, conductive agent and current collector in electrode material together, form stable electrode structure, this adhesive plays a vital role in lithium ion battery, in the production process of lithium battery foil adhesive, conveying device is needed to effectively convey and transfer raw materials, semi-finished products or finished products between different processes on production line.

[0003] The existing conveying device, in the production process, usually uses roller to convey foil to specified position for coating treatment, since the coating thickness of different foils is different, using positioning coating head for transmission coating, it is difficult to adjust smearing according to different requirements, there is certain limitation, leading to difficult uniform coating of coating, reducing overall coating effect, affecting the performance and safety of battery.

[0004] Therefore, in view of the above-mentioned existing conveying device due to the coating thickness of different foils, using positioning coating head for transmission coating, it is difficult to adjust smearing according to different requirements, there is certain limitation, leading to difficult uniform coating of coating, reducing overall coating effect, affecting the performance and safety of battery, a conveying device for lithium battery foil adhesive production can be designed, which can be adjusted in multiple directions according to coating requirements and transmission requirements to meet different production requirements. SUMMARY

[0005] In order to overcome the problem that some conveying devices use positioning coating head for transmission coating due to the coating thickness of different foils, it is difficult to adjust smearing according to different requirements, there is certain limitation, leading to difficult uniform coating of coating, reducing overall coating effect, affecting the performance and safety of battery.

[0006] The technical scheme of the utility model is as follows: a conveying device for lithium battery foil adhesive production, comprising a processing table, a coating assembly and a conveying assembly, the outer end of the processing table is provided with a coating assembly for uniformly coating adhesive on lithium battery foil, the inside of the processing table is provided with a conveying assembly for conveying coating to lithium battery foil, the coating assembly comprises a fixed plate, a sleeve plate, a movable frame, a limiting bolt, a transmission plate, a bolt, a brush plate, a storage box and a conveying pipe, the outer wall of the processing table is provided with a fixed plate symmetrically, the upper end of the fixed plate is provided with a sleeve plate, the inside of the sleeve plate is provided with a movable frame, and the upper end of the movable frame is provided with two groups of limiting bolts.

[0007] Preferably, the distance between the brush plate and the foil is adjusted by connecting the movable frame with the sleeve plate, ensuring that the adhesive is more evenly coated on the surface of the foil, avoiding excessive thickness or thinness of the adhesive, to adapt to the needs of different materials and processes, improve the performance and quality of lithium batteries, and at the same time, proper adjustment of the distance can also prevent the brush plate from pressing the foil too much, avoiding damage or deformation of the foil, ensuring the integrity of the foil, and replacing different brush plates with the latch according to different coating needs to meet the diversified production needs, ensuring that the adhesive forms an ideal coating layer on the lithium battery foil, improving the uniformity of the adhesive thickness coating.

[0008] Preferably, the inside of the movable frame is provided with a transmission plate, and the inside of the movable frame is provided with a limiting groove for accommodating the transmission plate, the upper end of the transmission plate is symmetrically provided with a latch, the transmission plate is fixedly connected with the movable frame through the latch, and the lower end of the transmission plate is provided with a brush plate. By replacing different brush plates with the latch according to different coating needs, diversified production needs are met, ensuring that the adhesive forms an ideal coating layer on the lithium battery foil, improving the uniformity of the adhesive thickness coating.

[0009] Preferably, the outer wall of the processing table is provided with a storage box, the upper end of the storage box is provided with a water pump, one end of the water pump is provided with a transmission pipe, and the water pump is in communication with the transmission plate through the transmission pipe. The coating is transmitted to the transmission plate by the brush plate through the water pump connected with the transmission pipe to provide stable coating flow and pressure, realize automatic transmission and coating of the coating, ensure that the coating can be continuously and uniformly transmitted to the transmission plate, so that the coating forms a uniform coating layer on the lithium battery foil, and improve the coating quality.

[0010] Preferably, the end of the storage box away from the water pump is provided with a butt joint pipe, and the inside of the butt joint pipe is provided with a sealing plug. After adding the coating in the storage box, the sealing plug is used for sealing to prevent the volatilization of the coating and the pollution of impurities, maintain the purity of the coating, reduce the volatilization and loss of the coating, and ensure the effective use of the coating during storage and use.

[0011] Preferably, the conveying assembly comprises a driving module, a lead screw, a sleeve ring, a movable plate, a support plate, a sliding frame, a fixing screw, a connecting plate, a telescopic pressing plate and a spring. The driving module is located on the outer wall of the processing table, one end of the driving module is located in the inside of the processing table and provided with a lead screw, the outer wall of the lead screw is provided with a sleeve ring, the upper end of the sleeve ring is provided with a movable plate, and the fixing screw is arranged between the movable plate and the sleeve ring. The movable plate and the sleeve ring are connected by the fixing screw, the movable plate is replaced according to the transmission of foils of different sizes to ensure that the foils maintain a stable posture and position during transmission, avoid coating deviation caused by size mismatch, and realize transmission and processing of foils of various sizes.

[0012] As preferred, the inner side of the processing table away from the side of the sleeve ring is provided with a support plate, the lower end of the movable plate is provided with a sliding frame, the inner side of the support plate is provided with a sliding groove accommodating the sliding frame, the support plate is connected with the sliding frame to assist the sliding of the movable plate, a stable sliding track is provided, the movable plate is stable during sliding, the shaking or deviation of the movable plate during movement is avoided, and the stability is improved.

[0013] As preferred, the upper end of the movable plate is provided with a plurality of connecting plates, the inner side of the connecting plate is provided with a plurality of springs, the inner side of the spring is provided with a damper, and the upper end of the connecting plate is provided with a telescopic pressing plate, which is movably connected with the connecting plate through the spring. The spring is connected with the telescopic pressing plate to stably press the foil, the pressing force is automatically adjusted according to the thickness and tension of the foil, the stable posture and position of the foil during transmission are ensured, the shaking and deviation of the foil are reduced, and the stability of transmission is improved.

[0014] The utility model discloses the beneficial effect that:

[0015] 1、Compared with the traditional conveying device, the distance between the brush plate and the foil is adjusted by adopting the sleeve plate to connect the movable frame, which ensures that the adhesive is more evenly coated on the surface of the foil, avoids the adhesive being too thick or too thin, and adapts to the needs of different materials and processes, improves the performance and quality of lithium batteries, and at the same time, properly adjusting the distance can also prevent the brush plate from pressing the foil too much, avoid damaging or deforming the foil, ensure the integrity of the foil, and replace different brush plates according to different coating needs by using the bolt, meet the diversified production needs, ensure that the adhesive forms an ideal coating layer on the lithium battery foil, and improve the coating uniformity of the adhesive thickness.

[0016] 2、The movable plate is connected with the sleeve ring by the fixed screw, the movable plate support is replaced according to the different size of the foil transmission, the stable posture and position of the foil during transmission are ensured, the coating deviation caused by the size mismatch is avoided, the movable plate is slid by using the support plate to connect the sliding frame, a stable sliding track is provided, the movable plate is stable during sliding, the shaking or deviation of the movable plate during movement is avoided, and at the same time, the telescopic pressing plate is connected with the spring to stably press the foil, the pressing force is automatically adjusted according to the thickness and tension of the foil, the stable posture and position of the foil during transmission are ensured, the shaking and deviation of the foil are reduced, and the stability of the foil transmission is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The overall structure schematic diagram of the utility model is shown;

[0018] Figure 2 The coating assembly structure schematic diagram of the utility model is shown;

[0019] Figure 3The utility model discloses a movable plate structure schematic diagram is shown.

[0020] Figure 4 The utility model discloses a processing table rear end structure schematic diagram is shown.

[0021] Mark explanation: 1, processing table, 201, fixed plate, 202, cover plate, 203, movable frame, 204, limit bolt, 205, transmission plate, 206, bolt, 207, brush plate, 208, storage box, 209, material conveying pipe, 210, water pump, 211, butt joint pipe, 301, drive module, 302, screw rod, 303, sleeve ring, 304, movable plate, 305, support plate, 306, sliding frame, 307, fixed screw, 308, connecting plate, 309, telescopic pressing plate, 310, spring. Specific implementation

[0022] The utility model is further explained below in connection with the drawings and examples.

[0023] Please refer to Figures 1-4 The utility model provides a kind of lithium battery foil adhesive production conveying device, including processing table 1, coating component and conveying component, the outer end of processing table 1 is equipped with the coating component for being used to coat adhesive uniformly on lithium battery foil material, the inside of processing table 1 is equipped with the conveying component for conveying coating lithium battery foil material, coating component includes fixed plate 201, cover plate 202, movable frame 203, limit bolt 204, transmission plate 205, bolt 206, brush plate 207, storage box 208, material conveying pipe 209, the outer wall of processing table 1 is equipped with fixed plate 201 symmetrically, the upper end of fixed plate 201 cover plate 202, the inside of cover plate 202 is equipped with movable frame 203, the upper end of movable frame 203 is equipped with two groups of limit bolt 204.

[0024] Please refer to Figures 1-2In the embodiment, the inside of the movable frame 203 is provided with a conveying plate 205, the inside of the movable frame 203 is provided with a limiting groove for accommodating the conveying plate 205, the upper end of the conveying plate 205 is symmetrically provided with a latch 206, the conveying plate 205 is fixedly connected with the movable frame 203 through the latch 206, the lower end of the conveying plate 205 is provided with a brush plate 207, different brush plates 207 are replaced according to different coating requirements through the latch 206, diversified production requirements are coped with, it is ensured that the adhesive forms an ideal coating layer on the lithium battery foil, the coating uniformity of the adhesive thickness is improved, the outer wall of the machining table 1 is provided with a storage box 208, the upper end of the storage box 208 is provided with a water pump 210, one end of the water pump 210 is provided with a conveying pipe, the water pump 210 is communicatively arranged with the conveying plate 205 through the conveying pipe, the coating is transmitted to the conveying plate 205 by the brush plate 207 through the water pump 210 connected with the conveying pipe, stable coating flow and pressure are provided, automatic transmission and coating of the coating are realized, it is ensured that the coating can be continuously and uniformly transmitted to the conveying plate 205, so that the coating forms a uniform coating layer on the lithium battery foil, and the coating quality is improved.

[0025] Please refer to Figures 1-3 In the embodiment, the end of the storage box 208 away from the water pump 210 is provided with a butt joint pipe 211, the inside of the butt joint pipe 211 is provided with a sealing plug, the sealing plug is used for sealing after the storage box 208 is filled, the volatilization and impurity pollution of the coating are prevented, the purity of the coating is maintained, the volatilization and loss of the coating are reduced, the effective utilization of the coating in the storage and use process is ensured, the conveying assembly comprises a driving module 301, a lead screw 302, a sleeve ring 303, a movable plate 304, a support plate 305, a sliding frame 306, a fixing screw 307, a connecting plate 308, a telescopic pressing plate 309 and a spring 310, the driving module 301 is located on the outer wall of the machining table 1, one end of the driving module 301 is located in the inside of the machining table 1 and is provided with the lead screw 302, the outer wall of the lead screw 302 is sleeved with the sleeve ring 303, the upper end of the sleeve ring 303 is provided with the movable plate 304, the fixing screw 307 is arranged between the movable plate 304 and the sleeve ring 303, the movable plate 304 and the sleeve ring 303 are connected by using the fixing screw 307, the movable plate 304 is replaced according to different sizes of the foil, it is ensured that the foil maintains a stable posture and position during the transmission process, coating deviation caused by size mismatch is avoided, and foil transmission processing of various sizes is realized.

[0026] Please refer to Figures 2-4In the embodiment, the inner side of the processing table 1 away from the side of the sleeve ring 303 is provided with a support plate 305, the lower end of the movable plate 304 is provided with a sliding frame 306, the inner side of the support plate 305 is provided with a sliding groove accommodating the sliding frame 306, the sliding frame 306 is connected to the support plate 305 to assist the sliding of the movable plate 304, a stable sliding track is provided to stabilize the sliding of the movable plate 304, the shaking or deviation of the movable plate 304 during the movement is avoided, the stability is improved, the upper end of the movable plate 304 is provided with a plurality of connecting plates 308, the inner side of the connecting plate 308 is provided with a plurality of springs 310, the inner side of the spring 310 is provided with a damper, the upper end of the connecting plate 308 is provided with a telescopic pressing plate 309, the telescopic pressing plate 309 is movably connected to the connecting plate 308 through the spring 310, the spring 310 is used to connect the telescopic pressing plate 309 to press and fit the foil, the pressing force is automatically adjusted according to the thickness and tension of the foil, the stable posture and position of the foil during the transmission are ensured, the shaking and deviation of the foil are reduced, and the stability of the transmission is improved.

[0027] In operation, first, the material to be coated is placed on the upper end of the movable plate 304, the telescopic pressing plate 309 is pulled to press and fit the foil together with the spring 310, the pressing force is automatically adjusted according to the thickness and tension of the foil, the stable posture and position of the foil during the transmission are ensured, the shaking and deviation of the foil are reduced, after the foil is pressed, the driving module 301 is started to connect the lead screw 302 to drive the sleeve ring 303 to drive the movable plate 304 to transmit, in the production process, the fixed screw 307 can be used to connect the movable plate 304 and the sleeve ring 303, the support of the movable plate 304 is replaced according to the transmission of foils of different sizes, the stable posture and position of the foil during the transmission are ensured, the coating deviation caused by the size mismatch is avoided, the transmission and processing of foils of multiple sizes are realized, and second, the sliding frame 306 is connected to the support plate 305 to assist the sliding of the movable plate 304, a stable sliding track is provided to stabilize the sliding of the movable plate 304, and the transmission work of the foil is realized.

[0028] When the foil is transported to the bottom of the brush plate 207, the limiting bolt 204 is used to connect the movable frame 203 to adjust the extension inside the sleeve plate 202, so that the brush plate 207 and the foil reach the appropriate coating distance, ensuring that the adhesive on the surface of the foil is more uniform, avoiding the adhesive being too thick or too thin, to adapt to the needs of different materials and processes, at the same time, proper adjustment of the distance can also prevent the brush plate 207 from pressing the foil too much, avoiding causing damage or deformation of the foil, ensuring the integrity of the foil, and according to different coating needs, different brush plates 207 are replaced by using the latch 206, to meet the diversified production needs, ensure that the adhesive on the lithium battery foil forms an ideal coating layer, and in the coating process, the paint is transported to the transmission plate 205 by the brush plate 207 through the water pump 210 connected to the transmission pipe, providing stable paint flow and pressure, realizing the automatic transmission and coating of the paint, ensuring that the paint can be continuously and uniformly transmitted to the transmission plate 205, so that the paint on the lithium battery foil forms a uniform coating layer, realizing the transmission and coating production of the lithium battery foil.

[0029] Through the above steps, by adopting the sleeve plate 202 to connect the movable frame 203 to adjust the distance between the brush plate 207 and the foil, the adhesive on the surface of the foil is more uniform, avoiding the adhesive being too thick or too thin, to adapt to the needs of different materials and processes, improve the performance and quality of lithium batteries, at the same time, proper adjustment of the distance can also prevent the brush plate 207 from pressing the foil too much, avoiding causing damage or deformation of the foil, ensuring the integrity of the foil, and according to different coating needs, different brush plates 207 are replaced by using the latch 206, to meet the diversified production needs, ensure that the adhesive on the lithium battery foil forms an ideal coating layer, and improve the uniformity of the adhesive thickness coating.

Claims

1. A conveying device for lithium battery foil adhesive production, comprising a processing table (1); characterized in that: Also include the coating assembly and conveying assembly, the outer end of the processing table (1) is provided with a coating assembly for uniformly coating the adhesive on the lithium battery foil, the inner part of the processing table (1) is provided with a conveying assembly for conveying the coating material of the lithium battery foil, the coating assembly comprises a fixed plate (201), a sleeve plate (202), a movable frame (203), a limiting bolt (204), a transmission plate (205), a latch (206), a brush plate (207), a storage box (208), a feeding pipe (209), the outer wall of the processing table (1) is provided with a fixed plate (201) symmetrically, the upper end of the fixed plate (201) is provided with a sleeve plate (202), the inner part of the sleeve plate (202) is provided with a movable frame (203), the upper end of the movable frame (203) is provided with two groups of limiting bolts (204).

2. The conveying device for lithium battery foil adhesive production according to claim 1, characterized in that: The inner part of the movable frame (203) is provided with a transmission plate (205), the inner part of the movable frame (203) is provided with a limiting groove for accommodating the transmission plate (205), the upper end of the transmission plate (205) is provided with a latch (206) symmetrically, the transmission plate (205) is fixedly connected with the movable frame (203) through the latch (206), the lower end of the transmission plate (205) is provided with a brush plate (207).

3. The conveying device for lithium battery foil adhesive production according to claim 1, characterized in that: The outer wall of the processing table (1) is provided with a storage box (208), the upper end of the storage box (208) is provided with a water pump (210), one end of the water pump (210) is provided with a feeding pipe (209), the water pump (210) is communicatively arranged with the transmission plate (205) through the feeding pipe (209).

4. The conveying device for lithium battery foil adhesive production according to claim 1, characterized in that: The end of the storage box (208) away from the water pump (210) is provided with a butt joint pipe (211), the inner part of the butt joint pipe (211) is provided with a sealing plug.

5. The conveying device for lithium battery foil adhesive production according to claim 1, characterized in that: The conveying assembly comprises a driving module (301), a lead screw (302), a sleeve ring (303), a movable plate (304), a support plate (305), a sliding frame (306), a fixed screw (307), a connecting plate (308), a telescopic pressing plate (309) and a spring (310), the driving module (301) is located on the outer wall of the processing table (1), one end of the driving module (301) is located in the inner part of the processing table (1) and is provided with a lead screw (302), the outer wall of the lead screw (302) is provided with a sleeve ring (303), the upper end of the sleeve ring (303) is provided with a movable plate (304), and the fixed screw (307) is arranged between the movable plate (304) and the sleeve ring (303).

6. The conveying device for lithium battery foil adhesive production according to claim 5, characterized in that: The inner part of the support plate (305) away from the sleeve ring (303) of the processing table (1) is provided with a sliding groove for accommodating the sliding frame (306).

7. The conveying device for lithium battery foil adhesive production according to claim 5, characterized in that: The upper end of the movable plate (304) is provided with a plurality of connecting plates (308), the inner part of the connecting plate (308) is provided with a plurality of springs (310), the inner side of the spring (310) is provided with a damper, the upper end of the connecting plate (308) is provided with a telescopic pressing plate (309), and the telescopic pressing plate (309) is movably connected with the connecting plate (308) through the spring (310).