Edge cutting device for lithium battery production

Through the precise adjustment of the bidirectional screw and the lower pressure frame, combined with the design of the suction hopper and vacuum cleaner, the problem of loose fixation of lithium batteries during the trimming process is solved, the accuracy and safety of lithium battery trimming are achieved, and the production efficiency and product quality are improved.

CN223314064UActive Publication Date: 2025-09-09JIANGXI YUANSHENG LITHIUM IND CO LTD
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Patent Information

Application Number
CN202422757991.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2025-09-09
Estimated Expiration
2034-11-13

AI Technical Summary

Technical Problem

During the high-speed cutting process, the existing trimming devices used in lithium battery production do not securely fix the lithium batteries firmly enough, which may cause slight displacement and affect the trimming accuracy and safety.

Method used

The machine adopts precise adjustment of bidirectional screw and lower pressure frame, combined with the design of suction hopper and vacuum cleaner, uses suction cup to fix lithium battery, and cooperates with optical detector to detect cutting quality in real time, ensuring the precise cutting of lithium battery edge by cutter and timely collection of waste.

Benefits of technology

The cutting precision is improved, the accuracy and safety of lithium battery cutting are ensured, the working environment is kept clean, and the product quality and production efficiency are improved.

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Abstract

The utility model relates to the technical field of lithium battery processing, in particular to an edge cutting device for lithium battery production, which comprises a base, a bearing table, an electric slide rail, a bidirectional driving slide rail, a mold, a support frame, an electric cylinder I and the like, a bearing table is mounted at the top of the base, an electric sliding rail is mounted on the front side of the table top of the bearing table, a bidirectional driving sliding rail is slidably arranged on the electric sliding rail, molds are slidably arranged on the two sides of the bidirectional driving sliding rail, caulking grooves are formed in the opposite faces of the molds on the two sides, and notches are formed in the middles of the molds; an electric cylinder I is mounted at the top of the support frame. Through accurate adjustment of the bidirectional screw rod and the lower pressing frame, accurate cutting of the cutter on the edge of the lithium battery is ensured, and the edge cutting accuracy is improved; and through effective cooperation of the suction hopper and the dust collector, cutting waste is collected in time, the workbench is kept clean and tidy, and pollution is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, in particular to a trimming device for lithium battery production. Background Art

[0002] Lithium-ion batteries are rechargeable batteries widely used in portable electronic devices, electric vehicles, energy storage systems, etc. Their name comes from the lithium ions used inside the battery as charge carriers.

[0003] In the production process of lithium batteries, trimming is an important process. Its purpose is to ensure that the size and shape of the battery meet the design requirements, while removing excess materials to improve the safety and performance of the battery.

[0004] For example, Chinese patent CN212257585U discloses a trimming device for lithium battery production. This device uses a clamping plate and rollers to fix the lithium battery. Although this method can provide a certain fixing effect, in actual operation, this fixing method may not be strong enough, especially during high-speed cutting, the lithium battery may undergo slight displacement.

[0005] Therefore, there is an urgent need to design a lithium battery production trimming device with a better trimming method to solve the above technical problems. Utility Model Content

[0006] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a trimming device for lithium battery production.

[0007] The technical solution of the utility model is: a trimming device for lithium battery production, including a base, a bearing platform, an electric slide rail, a two-way drive slide rail, a mold, a support frame, an electric cylinder, a lower pressure frame, a spring, a cutter, a two-way screw, a limiting slider, a conveyor and a waste edge collection group, a bearing platform is installed on the top of the base, an electric slide rail is installed on the front side of the bearing platform, a two-way drive slide rail is slidably arranged on the electric slide rail, molds are slidably arranged on both sides of the two-way drive slide rail, embedding grooves are opened in the opposite surfaces of the molds on both sides, and a notch is opened in the middle of the molds, a support frame is provided in the center of the upper part of the bearing platform, an electric cylinder is installed on the top of the support frame, and a lower pressure frame is slidably arranged on the upper part of the support frame The support rod of the lower pressure frame passes through the upper part of the support frame, the driving end of the electric cylinder passes through the support frame and is connected to the lower pressure frame, and several springs are arranged between the top of the support frame and the lower part of the lower pressure frame. Cutters are slidably arranged on both sides of the bottom of the lower pressure frame, and a bidirectional screw is penetrated and rotatably arranged between the two inner walls of the support frame. Adjustment disks are provided on the through-passing parts at both ends of the bidirectional screw, and the cutters on both sides are threadedly connected with the bidirectional screw. Limit sliders are rotatably arranged at both ends of the bidirectional screw, and the limit sliders at both ends are slidably connected to the inner wall of the support frame. A conveyor is installed on the rear side of the table top of the bearing platform, and the size of the notch of the mold corresponds to the front outer contour of the conveyor. Waste edge collection groups for collecting waste edges are provided on both sides of the middle part of the bearing platform.

[0008] As a further preferred solution, the waste edge collection group includes a suction hopper, a vacuum cleaner and a waste basket. Suction hoppers are provided on both outer sides of the middle part of the supporting platform. The suction end of the suction hopper extends to the inner middle part of the supporting platform. A vacuum cleaner is installed on the upper part of the suction hopper, and a waste basket is pull-out at the lower part of the suction hopper, and handles are provided on the outside of the waste basket.

[0009] As a further preferred solution, the electric slide drives the bidirectional drive slide to slide, so that when the mold moves to the bottom of the lower pressure frame, the notch of the mold is directly opposite the front of the conveyor, and the upper ends of the two molds are in contact with the two ends of the suction hopper.

[0010] As a further preferred solution, it also includes a suction cup and an air pump. The suction cup is arranged in the mold, and the suction end of the suction cup is connected to the embedded groove of the mold. The air pump is arranged on the delivery pipe of the suction cup, and the air pump is located outside the mold.

[0011] As a further preferred solution, an optical detector is also included. The optical detector is arranged at the rear of the support frame, and the detection end of the optical detector is directly above the middle of the conveyor.

[0012] As a further preferred solution, it also includes electric cylinder 2, pushing roller and stacking platform. Electric cylinder 2 is staggered on both sides of the rear of the load-bearing platform. Pushing roller is set at the driving end of electric cylinder 2 on both sides. Pushing roller is in sliding contact with the end face of the conveyor belt of the conveyor. Stacking platforms are set on both sides of the rear of the load-bearing platform. The stacking platforms on both sides are respectively located on both sides of the conveyor, and the inner ends of the two stacking platforms close to the conveyor are inclined.

[0013] As a further preferred solution, a controller is also included, and a controller is arranged on the front side of the support platform; the controller is electrically connected to the electric slide rail, the two-way drive slide rail, the suction cup, the air pump, the electric cylinder 1, the electric cylinder 2 and the conveyor.

[0014] As a further preferred solution, a ruler is also included. Both ends of the lower part of the lower pressure frame are provided with a ruler for visually adjusting the value.

[0015] The utility model has the following advantages: 1. The utility model ensures the precise cutting of the cutter on the edge of the lithium battery through the precise adjustment of the bidirectional screw and the lower pressure frame, thereby improving the cutting accuracy; the effective cooperation of the suction hopper and the vacuum cleaner enables the cutting waste to be collected in time, keeps the workbench clean, and avoids pollution.

[0016] 2. The design of the spring buffer and limit slider of this utility model ensures that the cutter is stable during the pressing process, avoiding the quality problems of cutting edges caused by vibration; the optical detector detects the cutting quality in real time to ensure that the cutting edges of each lithium battery meet the standards, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an assembly diagram of the present utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the entire rear view of the device of the present invention.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the supporting platform of the utility model after being cut open to show the various components thereon.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the internal suction cup after the mold of the utility model is cut open.

[0021] Figure 5 It is a three-dimensional structural diagram of the cutter, bidirectional screw and limiting slider of the utility model.

[0022] Figure 6 It is a three-dimensional structural diagram of the optical detector, electric cylinder 2, push roller and other components of the utility model.

[0023] Figure 7This is a schematic diagram of the three-dimensional structure of the utility model when the bidirectional driving slide rail drives the mold to slide backward.

[0024] Figure 8 This is a schematic diagram of the three-dimensional structure of the utility model when the molds are close to each other and located above the conveyor.

[0025] Among them: 1- base, 2- loading platform, 3- electric slide, 4- bidirectional drive slide, 5- mold, 51- suction cup, 52- air pump, 6- support frame, 7- electric cylinder 1, 8- lower pressure frame, 9- spring, 10- cutter, 11- bidirectional screw, 12- limit slider, 13- conveyor, 14- suction hopper, 15- vacuum cleaner, 16- waste basket, 17- optical detector, 18- electric cylinder 2, 19- push roller, 20- stacking table, 21- controller, 22- ruler. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to specific embodiments. It should be noted that, unless otherwise specified or limited, terms such as "dispose," "install," "connect," and "connect" should be understood in a broad sense. For example, "connect" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; or it may refer to internal communication between two components. A person skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0027] Embodiment: A trimming device for lithium battery production, such as Figures 1-8As shown, it includes a base 1, a bearing platform 2, an electric slide 3, a two-way drive slide 4, a mold 5, a support frame 6, an electric cylinder 7, a lower pressure frame 8, a spring 9, a cutter 10, a two-way screw 11, a limit slider 12, a conveyor 13 and a waste edge collection group. The base 1 serves as the basic structure of the entire equipment, providing stable support to ensure the normal operation of other components. A bearing platform 2 is installed on the top of the base 1. The bearing platform 2 provides a stable platform for the lithium battery trimming operation. At the same time, various components on the bearing platform, such as the electric slide 3 and the support frame 6, work together to complete the trimming work. The electric slide 3 is installed on the front side of the bearing platform 2. The electric slide 3 is responsible for driving the two-way drive slide 4 to move back and forth, so that the mold 5 can accurately The two sides of the two-way drive slide 4 are slidably provided with molds 5, and the molds 5 are used to fix the lithium battery and ensure that they remain stable during the trimming process. The opposite surfaces of the molds 5 on both sides are provided with embedded grooves, and the middle part of the molds 5 is provided with a notch. A support frame 6 is provided in the center of the upper part of the carrier platform 2 to support the lower pressure frame 8, the electric cylinder 7 and other components to ensure that the cutter 10 can be pressed down vertically and the edge of the lithium battery can be accurately cut. The electric cylinder 7 is installed on the top of the support frame 6. 6 is provided with a lower pressure frame 8 for sliding on the upper part, and the cutter 10 is driven by the electric cylinder 7 to move downward to complete the cutting action. The support rod of the lower pressure frame 8 passes through the upper part of the support frame 6, and the driving end of the electric cylinder 7 passes through the support frame 6 and is connected to the lower pressure frame 8. A number of springs 9 are provided between the top of the support frame 6 and the lower part of the lower pressure frame 8. The springs 9 between the lower pressure frame 8 and the support frame 6 can provide a certain buffering effect to prevent the cutter 10 from damaging the lithium battery or itself due to excessive impact force. The cutter 10 is slidably provided on both sides of the bottom of the lower pressure frame 8. By adjusting the bidirectional screw 11, it can be accurately positioned to the edge of the lithium battery to perform the cutting task. A bidirectional screw 11 is provided between the two inner walls of the support frame 6 and rotated to allow manual adjustment of the cutting force. The position of the knife 10 is to adapt to different types of lithium batteries to ensure the accuracy of trimming. Adjustment disks are provided on the through-holes at both ends of the bidirectional screw 11. The cutters 10 on both sides are threadedly connected to the bidirectional screw 11. Limit sliders 12 are rotatably provided at both ends of the bidirectional screw 11. The limit sliders 12 at both ends are slidably connected to the inner wall of the support frame 6. A conveyor 13 is installed on the rear side of the table of the supporting platform 2 to transport the lithium batteries that have completed trimming to the post-processing area to facilitate subsequent operations such as quality inspection and finished product collection. The size of the notch of the mold 5 corresponds to the front outer profile of the conveyor 13. Waste edge collection groups for collecting waste edges are provided on both sides of the middle part of the supporting platform 2 to promptly remove waste generated during trimming, keep the working environment clean, and reduce pollution.

[0028] like Figure 1-Figure 2 and Figure 6-Figure 7 As shown, the waste edge collection group includes a suction hopper 14, a vacuum cleaner 15 and a waste basket 16. Suction hoppers 14 are provided on both outer sides of the middle part of the supporting platform 2. The suction end of the suction hopper 14 extends to the inner middle part of the supporting platform 2. A vacuum cleaner 15 is installed on the upper part of the suction hopper 14. A waste basket 16 is pull-out provided at the lower part of the suction hopper 14, and a handle is provided on the outside of the waste basket 16; the electric slide rail 3 drives the bidirectional drive slide rail 4 to slide, so that when the mold 5 moves to the bottom of the lower pressing frame 8, the notch of the mold 5 is facing the front of the moving conveyor 13, and the upper ends of the two molds 5 are in contact with the two ends of the suction hopper 14.

[0029] like Figure 1 、 Figure 3 and Figure 4 As shown, it also includes a suction cup 51 and an air pump 52. The suction cup 51 is arranged in the mold 5, and the suction end of the suction cup 51 is connected to the embedded groove of the mold 5. The air pump 52 is arranged on the delivery pipe of the suction cup 51, and the air pump 52 is located outside the mold 5; the suction cup 51 and the air pump 52 use the negative pressure principle to fix the lithium battery, ensuring that the lithium battery will not be displaced during the trimming process, thereby improving the processing accuracy.

[0030] like Figure 2 and Figure 6 As shown, an optical detector 17 is also included. The optical detector 17 is set at the rear of the support frame 6, and the detection end of the optical detector 17 is directly above the middle of the conveyor 13; the optical detector 17 performs quality inspection on the lithium batteries that have completed trimming, detects unqualified products in time, and ensures product quality.

[0031] like Figure 2 and Figure 6-Figure 7 As shown, it also includes an electric cylinder 218, a pushing roller 19 and a stacking platform 20. The electric cylinders 218 are staggered on both sides of the rear of the supporting platform 2. The driving ends of the electric cylinders 18 on both sides are provided with pushing rollers 19. The pushing rollers 19 are in sliding contact with the conveyor belt end surface of the conveyor 13. Stacking platforms 20 are provided on both sides of the rear of the supporting platform 2. The stacking platforms 20 on both sides are respectively located on both sides of the conveyor 13, and the ends of the two stacking platforms 20 close to the conveyor 13 are inclined. The combination of the electric cylinder 218, the pushing rollers 19 and the stacking platform 20 pushes qualified lithium batteries from the conveyor 13 into the stacking platform 20. The design of the stacking platform 20 helps to stack the lithium batteries in an orderly manner and facilitates subsequent processing.

[0032] like Figure 1-Figure 2 and Figure 7As shown, a controller 21 is also included. The controller 21 is provided on the front side of the supporting platform 2. The controller 21 is electrically connected to the electric slide 3, the two-way drive slide 4, the suction cup 51, the air pump 52, the electric cylinder 1 7, the electric cylinder 2 18 and the conveyor 13. The controller 21 serves as the control center of the entire system, coordinating the work of various components, realizing automated operation, and improving production efficiency.

[0033] like Figure 5 As shown, a ruler 22 is also included. Both ends of the lower part of the lower pressing frame 8 are provided with a ruler 22 for visual adjustment of the value. The ruler 22 assists the operator to accurately adjust the position of the cutter 10 to ensure the accuracy of cutting.

[0034] First, the controller 21 issues a command to drive the bidirectional drive slide 4 to move the two molds 5 closer together, so that the grooves of the two are close and aggregated, and then the untrimmed lithium battery is placed in the grooves where the two molds 5 meet. At this time, the air pump 52 is started, and the suction cup 51 absorbs the lithium battery through the groove. The electric slide 3 is started, driving the bidirectional drive slide 4 to move forward. The bidirectional drive slide 4 moves to the designated position. At this time, the uncut grooves of the two molds 5 are facing the front of the conveyor 13. Under the action of the suction cup 51, the lithium battery will not move during the trimming process. Before trimming, the bidirectional screw 11 can be adjusted as needed, and the position of the cutter 10 can be changed by the adjustment disk to align it with the trimming position of the lithium battery. With the visual ruler 22, the position of the cutter 10 can be accurately adjusted to ensure that the cutter 10 is accurately aligned with the edge of the lithium battery. Then the electric cylinder 7 drives the lower pressing frame 8 to move downward, and the lower pressing frame 8 drives the cutter 10 to move downward. The cutter 10 contacts the edge of the lithium battery and starts the cutting operation. The spring 9 provided between the lower pressing frame 8 and the support frame 6 plays a buffering role, ensuring that the cutter 10 is stable during the downward pressing process and cutting. The knife 10 cuts the edge of the lithium battery to remove excess material, the vacuum cleaner 15 is started, and the cut waste will fall into the suction hopper 14 and finally into the waste basket 16. After the cutting is completed, the electric cylinder 7 drives the lower pressing frame 8 and the cutter 10 to reset, the controller 21 sends a command again, the conveyor 13 is started, and then the bidirectional drive slide 4 is driven to move the two molds 5 away from each other. The cut lithium battery finally falls on the conveyor belt of the conveyor 13. When it is transported to the rear, the detection end of the optical detector 17 detects the cutting quality of the lithium battery. The results are fed back through the controller 21. If there are unqualified products, the controller 21 will sound an alarm to prompt the operator to deal with them. Qualified lithium battery products will be pushed into the stacking table 20 from the conveyor 13 by the electric cylinder 2 18 driving the pushing roller 19. During the process of the lithium batteries being pushed into the stacking table 20, the inclined design inside the stacking table 20 can ensure that the lithium batteries are stacked in an orderly manner. After completing the trimming operation, the electric slide rail 3 drives the bidirectional drive slide rail 4 to return to the initial position to prepare for the next operation, and regularly clean the waste basket 16 to ensure the normal operation of the waste collection group.

[0035] Although the present disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. A trimming device for lithium battery production, characterized in that: The utility model comprises a base (1), a bearing platform (2), an electric slide rail (3), a bidirectional driving slide rail (4), a mold (5), a support frame (6), an electric cylinder (7), a lower pressure frame (8), a spring (9), a cutter (10), a bidirectional screw (11), a limiting slider (12), a conveyor (13) and a waste edge collection group. The base (1) is provided with a bearing platform (2) on the top, an electric slide rail (3) is provided on the front side of the bearing platform (2), a bidirectional driving slide rail (4) is provided on the electric slide rail (3), molds (5) are provided on both sides of the bidirectional driving slide rail (4), and grooves are provided in the opposite surfaces of the molds (5) on both sides, and a notch is provided in the middle of the molds (5). A support frame (6) is provided in the middle of the upper part of the bearing platform (2), an electric cylinder (7) is provided on the top of the support frame (6), a lower pressure frame (8) is provided on the upper part of the support frame (6), and the lower pressure frame (8) is provided on the upper part of the support frame (6). The support rod passes through the upper inner part of the support frame (6), the driving end of the electric cylinder (7) passes through the support frame (6) and is connected to the lower pressure frame (8), a plurality of springs (9) are provided between the inner top of the support frame (6) and the lower part of the lower pressure frame (8), and cutters (10) are slidably provided on both sides of the bottom of the lower pressure frame (8), and a bidirectional screw (11) is passed through and rotatably provided between the two inner walls of the support frame (6), and an adjusting disk is provided on the through-passing part at both ends of the bidirectional screw (11), and the cutters (10) on both sides are threadedly connected to the bidirectional screw (11), and the two ends of the bidirectional screw (11) are rotatably provided with a limit slider (12), and the limit sliders (12) at both ends are slidably connected to the inner wall of the support frame (6), and a conveyor (13) is installed on the rear side of the table of the bearing platform (2), and the size of the notch of the mold (5) corresponds to the front outer profile of the conveyor (13), and waste edge collection groups for collecting waste edges are provided on both sides of the middle part of the bearing platform (2).

2. A trimming device for lithium battery production according to claim 1, characterized in that: The waste edge collection group includes a suction hopper (14), a dust collector (15) and a waste basket (16). Suction hoppers (14) are provided on both outer sides of the middle part of the carrier platform (2). The suction end of the suction hopper (14) extends to the inner middle part of the carrier platform (2). The dust collector (15) is installed on the upper inner part of the suction hopper (14). The waste basket (16) is provided in a pull-out manner on the lower inner part of the suction hopper (14), and the waste basket (16) is provided with a handle on the outside.

3. A trimming device for lithium battery production according to claim 2, characterized in that: The electric slide rail (3) drives the bidirectional driving slide rail (4) to slide, so that when the mold (5) moves to the bottom of the lower pressing frame (8), the notch of the mold (5) is opposite to the front of the conveyor (13), and the upper ends of the two molds (5) contact the two ends of the suction hopper (14).

4. A trimming device for lithium battery production according to claim 3, characterized in that: The invention also includes a sucker (51) and an air pump (52). The sucker (51) is arranged in the mold (5), and the suction end of the sucker (51) is connected to the embedded groove of the mold (5). The air pump (52) is arranged on the delivery pipe of the sucker (51), and the air pump (52) is located outside the mold (5).

5. A trimming device for lithium battery production according to claim 4, characterized in that: The optical detector (17) is also included. The rear part of the support frame (6) is provided with the optical detector (17). The detection end of the optical detector (17) is directly above the middle part of the conveyor (13).

6. A trimming device for lithium battery production according to claim 5, characterized in that: The utility model also includes electric cylinder 2 (18), a pushing roller (19) and a stacking platform (20). Electric cylinder 2 (18) is staggeredly arranged on both sides of the rear of the supporting platform (2). The driving ends of the electric cylinder 2 (18) on both sides are provided with pushing rollers (19). The pushing rollers (19) are in sliding contact with the end surface of the conveyor belt of the conveyor (13). Stacking platforms (20) are arranged on both sides of the rear of the supporting platform (2). The stacking platforms (20) on both sides are respectively located on both sides of the conveyor (13), and the ends of the two stacking platforms (20) close to the conveyor (13) are both inclined.

7. A trimming device for lithium battery production according to claim 6, characterized in that: The invention also includes a controller (21), which is provided on one side of the front of the carrier platform (2); the controller (21) is electrically connected to the electric slide rail (3), the two-way drive slide rail (4), the sucker (51), the air pump (52), the electric cylinder 1 (7), the electric cylinder 2 (18) and the conveyor (13).

8. A trimming device for lithium battery production according to claim 7, characterized in that: A ruler (22) is also included. Both ends of the lower portion of the lower pressing frame (8) are provided with a ruler (22) for visually adjusting the value.

Citation Information

Patent Citations

  • Edge cutting device for lithium battery production

    CN212257585U