Laminating machine for lithium battery processing

By designing an automated lithium battery stacking machine, which uses a handling and clamping mechanism to automatically stack battery electrodes and separators, the problems of low efficiency, low precision, and difficulty in cleanliness control in existing technologies have been solved. This has enabled efficient and high-precision stacking operations, improving battery quality and reliability.

CN223566662UActive Publication Date: 2025-11-18FUJIAN TIPING NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202422358031.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-11-18
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

The existing lithium battery stacking process suffers from low production efficiency, low precision, large human error, and difficulty in cleanliness control, which affects battery quality and reliability.

Method used

A stacking machine for lithium battery processing was designed, including a conveying mechanism and a clamping mechanism, to realize the automated stacking of battery electrodes and separators. Combined with a third slide rail and a pulling frame, the separator is prevented from hindering the stacking operation, thereby improving the stacking efficiency and accuracy.

Benefits of technology

It achieves efficient and high-precision stacking of battery electrodes and separators, reduces human error, improves the overall quality and reliability of batteries, and is suitable for large-scale production.

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Abstract

The utility model relates to the technical field of lithium battery processing, in particular to a lamination machine for processing a lithium battery. Comprising a workbench, a mounting frame, a carrying mechanism, a placing rack, a second sliding rail, a lamination plate and the like, a mounting frame is fixedly connected to the top of the workbench, carrying mechanisms are connected to the left side and the right side in the mounting frame, placing frames are fixedly connected to the left side and the right side of the top of the workbench, the sides, close to each other, of the left placing frame and the right placing frame are open, a second sliding rail is fixedly connected to the top of the workbench, and a lamination plate is fixedly connected to a sliding block of the second sliding rail. The battery pole piece stacking device is provided with the carrying mechanism and the clamping mechanism, the clamping mechanism can fix a diaphragm, then battery pole pieces with different polarities are stacked on the diaphragm in a staggered mode through the carrying mechanism, manual stacking operation is not needed, meanwhile, the stacking efficiency and precision are improved, and the third sliding rail and the pulling frame are arranged, so that the working efficiency is improved. The included angle between the diaphragm and the lamination plate can be reduced during disc operation, and the diaphragm is prevented from obstructing the lamination of battery pole pieces.
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Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery processing technical field especially relates to a lamination machine for lithium battery processing. BACKGROUND

[0002] The lithium battery lamination machine is a kind of automation equipment specially used for manufacturing lithium ion battery, mainly for the positive sheet, negative sheet and diaphragm are sequentially stacked into the battery core. The equipment ensures the consistency and high quality of battery by precisely controlling the alignment, tension and stacking speed of materials. Lamination machine usually has high automation level, can realize continuous production, and is equipped with cleaning, safety protection and quality detection functions to ensure the safety of production process and the reliability of product.

[0003] The main shortcomings of the existing manual lamination include low production efficiency, poor consistency and easy introduction of human error. Manual operation is difficult to achieve the accuracy of automatic equipment, which may cause unstable battery performance. In addition, manual lamination also faces the problem of difficult cleanliness control, which increases the risk of internal short circuit of battery. These factors jointly affect the overall quality and reliability of battery, limiting its use in large-scale production and high-performance applications. SUMMARY

[0004] In order to overcome the shortcomings of low efficiency and low precision of manual lamination, the purpose of the utility model is to provide a kind of high efficiency and high precision lamination machine for lithium battery processing.

[0005] A kind of lamination machine for lithium battery processing, including workbench, installation frame, carrying mechanism, rack, second slide rail, laminating plate, clamping mechanism, mounting plate and electric rotary lever, workbench top fixedly connected with installation frame, installation frame inside left and right sides are all connected with carrying mechanism, workbench top left and right sides are all fixedly connected with rack, the side of the left and right racks close to each other is open, the top of workbench is fixedly connected with second slide rail, the slider of second slide rail is fixedly connected with laminating plate, laminating plate is connected with the clamping mechanism for clamping diaphragm, the inner side of installation frame is fixedly connected with mounting plate, the rear side of installation frame is provided with electric rotary lever, and the rotary lever of electric rotary lever penetrates installation frame.

[0006] Optionally, the inner diameter of the rack is equal to the outer diameter of the battery sheet.

[0007] Optionally, the clamping mechanism includes a pressing plate and an elastic member, and the pressing plate is slidably connected to the front and rear sides of the laminating plate. The elastic member is fixedly connected between the pressing plate and the laminating plate.

[0008] Optionally, the carrying mechanism includes a first slide rail, a gas cylinder and a suction cup rack. Two first slide rails are fixedly connected to the top of the installation frame. The piston rod of the gas cylinder is fixedly connected to the suction cup rack.

[0009] Optionally, the screw rod and the winding rod are further included, two winding rods are slidably connected to the mounting plate, and screw rods are threadedly connected to the left and right sides of the mounting plate, and the screw rods are threadedly connected with the winding rods.

[0010] Optionally, the third sliding rail and the pulling frame are further included, the third sliding rail is fixedly connected inside the mounting frame, the third sliding rail passes through the mounting plate, and the pulling frame is fixedly connected to the sliding block of the third sliding rail.

[0011] The utility model has the following advantages: the utility model is provided with a carrying mechanism and a clamping mechanism, the clamping mechanism can fix the diaphragm, different polarity battery pole pieces are staggered and stacked on the diaphragm through the carrying mechanism, manual stacking operation is not needed, stacking efficiency and precision are improved, the third sliding rail and the pulling frame are arranged, the included angle between the diaphragm and the stacking plate can be reduced during disc operation, and the diaphragm avoids affecting the stacking of the battery pole piece. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0013] Figure 2 It is a structure sectional view of the utility model cylinder, mounting frame and suction disc frame.

[0014] Figure 3 It is a structure schematic view of the utility model second sliding rail, stacking plate and mounting plate.

[0015] Figure 4 It is a structure sectional view of the utility model stacking plate, elastic member and pressing plate.

[0016] Figure 5 It is a structure schematic view of the utility model pulling frame, third sliding rail and winding rod.

[0017] The figure mark explanation: 1 - workbench, 2 - mounting frame, 3 - first sliding rail, 4 - cylinder, 5 - suction disc frame, 6 - placing frame, 7 - second sliding rail, 8 - stacking plate, 9 - pressing plate, 10 - elastic member, 11 - mounting plate, 12 - electric rotary lever, 13 - screw rod, 14 - winding rod, 15 - third sliding rail, 16 - pulling frame. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0019] A stacking machine for lithium battery processing, such asFigures 1-5 As shown, including the workbench 1, installation frame 2, carrying mechanism, placed frame 6, second slide rail 7, laminated plate 8, clamping mechanism, mounting plate 11 and electric rotary lever 12, the workbench 1 top fixedly connected with installation frame 2, installation frame 2 inside both sides are connected with carrying mechanism, the workbench 1 top both sides are fixedly connected with placed frame 6, placed frame 6 is located in the installation frame 2 inside, the inner diameter of placed frame 6 is equal to the outer diameter of battery sheet, and the side of left and right placed frame 6 close to each other is provided as an open. When the carrying mechanism moves the battery sheet, it can ensure that the stacking position of the battery sheet is on the same straight line each time, and the processing precision of the laminating machine is improved. The workbench 1 top is fixedly connected with the second slide rail 7, the second slide rail 7 is an electric slide rail, the slider of the second slide rail 7 is fixedly connected with the laminated plate 8, the laminated plate 8 is connected with the clamping mechanism for clamping the diaphragm, the inside of the installation frame 2 is fixedly connected with the mounting plate 11, the rear side of the installation frame 2 is provided with the electric rotary lever 12, the rotary lever of the electric rotary lever 12 penetrates through the installation frame 2, and the rotary lever of the electric rotary lever 12 is used for winding the diaphragm.

[0020] The battery sheet is placed in the left and right placed frame 6, the diaphragm is wound on the rotary lever of the electric rotary lever 12, the diaphragm is pulled downward to be clamped and fixed on the laminated plate 8 through the clamping mechanism, the second slide rail 7 drives the laminated plate 8 to move left, the left battery sheet is taken out from the left placed frame 6 through the left carrying mechanism and then placed on the laminated plate 8, the laminated plate 8 is driven to move right through the second slide rail 7, the right battery sheet is taken out from the right placed frame 6 through the right carrying mechanism and then placed on the laminating machine, thereby completing a laminating operation, in the process, the electric rotary lever 12 continuously rotates to release the diaphragm from the rotary lever, and through repeated laminating operation, the laminating processing of a whole battery can be completed, the laminating processing efficiency is high, and the mechanical operation precision of the laminating machine is higher than that of manual operation.

[0021] As shown in Figure 1 , Figure 3 and Figure 4 , the clamping mechanism includes a pressing plate 9 and an elastic member 10, the laminated plate 8 is slidably connected with the pressing plate 9 on the front and rear sides, the elastic member 10 is fixedly connected between the pressing plate 9 and the laminated plate 8, the elastic member 10 is provided as a spiral spring, can fix the diaphragm before laminating processing, avoid misplacement between the battery sheet and the diaphragm, and further improve the laminating processing precision. When the clamping mechanism clamps the diaphragm, the front and rear pressing plates 9 are slid upward, the elastic member 10 is compressed, the diaphragm is pulled downward to be tightly attached to the laminated plate 8, and then the pressing plate 9 is released, the elastic member 10 returns to the original state, so that the pressing plate 9 slides downward to press and clamp the diaphragm.

[0022] As shown in Figure 1 and Figure 2As shown, the carrying mechanism includes first slide rails 3, air cylinders 4 and suction disc racks 5, two first slide rails 3 are fixedly connected to the top of the mounting frame 2, the first slide rails 3 are arranged as electric slide rails, the sliding blocks of the first slide rails 3 are fixedly connected with the air cylinders 4, the piston rods of the air cylinders 4 are fixedly connected with the suction disc racks 5, and the suction disc racks 5 are electric suction discs. When the battery pole piece needs to be carried, the air cylinders 4 are driven to move through the first slide rails 3, and then the suction disc racks 5 are adsorbed to the battery pole piece by extending the piston rods of the air cylinders 4, and under the cooperation of the first slide rails 3, the air cylinders 4 and the suction disc racks 5, the battery pole piece can be accurately moved.

[0023] As shown in Figure 1 , Figure 3 and Figure 5 , further comprising a screw rod 13 and a winding rod 14, two winding rods 14 are slidingly connected to the mounting plate 11, the surfaces of the winding rods 14 are smooth, screw rods 13 are threadedly connected to the left and right sides of the mounting plate 11, and the screw rods 13 are threadedly connected with the winding rods 14, so that the left and right winding rods 14 can be controlled to move away from each other or move close to each other by rotating the screw rods 13, thereby controlling the distance between the left and right winding rods 14. After the diaphragm is wound on the electric rotary rod 12, the diaphragm is pulled downward to pass between the left and right winding rods 14, and when the distance between the left and right winding rods 14 is reduced, the angle between the part of the diaphragm away from the laminated plate 8 and the battery pole piece is reduced, thereby avoiding the part of the diaphragm away from the laminated plate 8 from interfering with the stacking of the battery pole piece, reducing the relative movement between the battery pole piece and the diaphragm during the stacking process, and avoiding misalignment or wrinkling.

[0024] As shown in Figure 1 , Figure 3 and Figure 5 , further comprising a third slide rail 15 and a pulling frame 16, the third slide rail 15 is fixedly connected inside the mounting frame 2, the third slide rail 15 is an electric slide rail, the third slide rail 15 passes through the mounting plate 11, the pulling frame 16 is fixedly connected to the sliding block of the third slide rail 15, four cylindrical rods are arranged in the pulling frame 16, the four cylindrical rods are arranged symmetrically left and right, the number of the cylindrical rods on the left and right sides is two, and the surfaces of the cylindrical rods are smooth. After the diaphragm passes between the left and right winding rods 14, it passes through the pulling frame 16 and is finally clamped on the laminated plate 8, when the laminated plate 8 moves left through the second slide rail 7, the third slide rail 15 drives the pulling frame 16 to move right to pull the diaphragm, and when the laminated plate 8 moves right through the second slide rail 7, the third slide rail 15 drives the pulling frame 16 to move left to pull the diaphragm, so that the part of the diaphragm away from the laminated plate 8 can move away from the battery pole piece, further facilitating the stacking of the battery pole piece.

[0025] The above is only an embodiment of the present application and is not used to limit the present application. Any equivalent replacement made within the principles of the present application shall be included in the protection scope of the present application. The contents not described in detail in the present application belong to the existing technology known to the technical personnel in the field.

Claims

1. A laminating machine for lithium battery processing, comprising a workbench (1) and a mounting frame (2), the mounting frame (2) is fixedly connected to the top of the workbench (1), characterized in that, The utility model also includes a carrying mechanism, a placing rack (6), a second slide rail (7), a laminated plate (8), a clamping mechanism, a mounting plate (11) and a motorized rotary lever (12), the carrying mechanism is connected to the left and right sides inside the mounting frame (2), the placing rack (6) is fixedly connected to the left and right sides of the top of the workbench (1), the side of the left and right placing racks (6) close to each other is provided as an open side, the second slide rail (7) is fixedly connected to the top of the workbench (1), the slider of the second slide rail (7) is fixedly connected with the laminated plate (8), the clamping mechanism for clamping the diaphragm is connected to the laminated plate (8), the mounting plate (11) is fixedly connected to the inner side of the mounting frame (2), the motorized rotary lever (12) is installed on the rear side of the mounting frame (2), and the rotary lever of the motorized rotary lever (12) penetrates the mounting frame (2).

2. The laminating machine for processing lithium batteries as claimed in claim 1, wherein The inner diameter of the placing rack (6) is equal to the outer diameter of the battery piece.

3. The laminating machine for processing lithium batteries as claimed in claim 2, wherein the first and second guide members are formed of a material having a friction coefficient of 0.1 or less. The clamping mechanism includes a pressing plate (9) and an elastic member (10), the pressing plate (9) is slidably connected to the front and rear sides of the laminated plate (8), and the elastic member (10) is fixedly connected between the pressing plate (9) and the laminated plate (8). ​ 4. The laminating machine for processing lithium batteries as claimed in claim 3, wherein the first and second guide members are formed of a material having a friction coefficient of 0.1 or less. The carrying mechanism includes a first slide rail (3), an air cylinder (4) and a suction disc rack (5), two first slide rails (3) are fixedly connected to the top of the mounting frame (2), the slider of the first slide rail (3) is fixedly connected with the air cylinder (4), and the piston rod of the air cylinder (4) is fixedly connected with the suction disc rack (5).

5. A stacking machine for lithium battery processing as described in claim 4, characterized in that, The utility model also includes a screw rod (13) and a winding rod (14), two winding rods (14) are slidably connected to the mounting plate (11), the left and right sides of the mounting plate (11) are screw connected with the screw rod (13), and the screw rod (13) is screw connected with the winding rod (14).

6. The stacker as claimed in claim 5, wherein the stacker is characterized by: The utility model also includes a third slide rail (15) and a pulling rack (16), the third slide rail (15) is fixedly connected inside the mounting frame (2), the third slide rail (15) penetrates the mounting plate (11), and the slider of the third slide rail (15) is fixedly connected with the pulling rack (16).