Air cylinder combined lithium battery tab cutting device

The lithium battery tab cutting device using a cylinder combination solves the problems of residue adhesion and unstable cutting gap in the cutting device, realizes the centralized collection of residues and cutting stability, and ensures the integrity of the tab.

CN223519229UActive Publication Date: 2025-11-07SHENZHEN XINXUE EDUCATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422440231.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2025-11-07
Estimated Expiration
2034-10-10

AI Technical Summary

Technical Problem

Existing lithium battery tab cutting devices have problems such as scrap material sticking to the cutter after tab cutting, and scrap material sticking to the battery cell tab during secondary cutting. The cutter is not easy to replace, which leads to dulling. In addition, the gap between the upper and lower cutters fluctuates greatly, resulting in the problem of tab stringing.

Method used

The lithium battery tab cutting device using a cylinder combination employs a vacuum generator to adsorb and cut the residue through the cooperation of a sliding component and a cutting component. The cutting position is adjusted by a lifting component to prevent residue from sticking together and blade dulling, thus maintaining a stable cutting gap.

Benefits of technology

It enables the centralized collection of fragments during the electrode cutting process, avoiding fragment adhesion and blade dulling, ensuring cutting stability and electrode integrity, and reducing electrode stringing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223519229U_ABST
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Abstract

A lithium battery tab cutting device combined with an air cylinder comprises a workbench base, a positioning bottom plate is arranged at the top of the workbench base, fixing supports are arranged on the two sides of the top of the positioning bottom plate, a cutting fixing plate is arranged at the rear ends of the fixing supports, and a sliding assembly and a cutting assembly are arranged at the rear end of the cutting fixing plate. And a tab residual piece collecting assembly is arranged in the cutting fixing plate, and a lifting assembly is arranged in the interior formed by the fixing supports on the left side and the right side. According to the lithium battery tab cutting device, the lithium battery tab is cut through cooperation of the upper cutting assembly and the lower cutting assembly, cut fragments are adsorbed through the vacuum generator to be collected in a centralized mode, the fragments are prevented from being adhered to the blade or a battery cell tab, the cutting blade can be installed and detached, tab wire drawing caused by passivation of the blade is avoided, and the cutting efficiency is improved. Meanwhile, the lifting assembly solves the problem that the gap between the upper cutting assembly and the lower cutting assembly fluctuates greatly, and meanwhile the height of the cutting position can be adjusted.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lithium battery manufacturing, more particularly to a lithium battery tab cutting device combined with air cylinders. BACKGROUND

[0002] Lithium battery is a commonly used energy storage electrical component in modern society, which realizes the voltage change of the positive and negative terminals of lithium battery through the exchange of positive and negative electrons, and achieves the purpose of current delivery circulation. In the production and manufacturing of lithium battery, in order to ensure the good electrical conductivity of the positive and negative terminals of the battery, the corresponding tab structure is installed on the positive and negative electrodes, and through the action of the tab, the contact and communication of lithium battery and external electronic components in the circuit are realized.

[0003] In order to improve the electrical conductivity stability of the tab member of the lithium battery pole piece, the tab member of the lithium battery pole piece needs to be produced and processed, and the irregular scraps on the tab need to be reduced to maintain stable regularity.

[0004] The existing lithium battery tab cutting device has the problems of edge scrap sticking to the cutting knife after tab cutting, edge scrap sticking to the cell tab during secondary cutting, tab cutting knife not easy to replace, long time use causing passivation, cutting failure leading to tab wire drawing, large gap between upper and lower cutting knives, large gap leading to cutting failure and tab wire drawing, which need to be improved. In view of this, we provide a lithium battery tab cutting device combined with air cylinders. UTILITY MODEL CONTENTS

[0005] 1. Technical problem to be solved

[0006] The utility model aims at providing a lithium battery tab cutting device combined with air cylinders to solve the problems of edge scrap sticking to the cutting knife after tab cutting, edge scrap sticking to the cell tab during secondary cutting, tab cutting knife not easy to replace, long time use causing passivation, cutting failure leading to tab wire drawing, large gap between upper and lower cutting knives, large gap leading to cutting failure and tab wire drawing in the above background technology.

[0007] 2. Technical scheme

[0008] A lithium battery tab cutting device combined with air cylinders, comprising a workbench base, the top of the workbench base is provided with a positioning bottom plate, the top of the positioning bottom plate is provided with a fixed support on both sides, the rear end of the fixed support is provided with a cutting fixed plate, the rear end of the cutting fixed plate is provided with a sliding assembly and a cutting assembly, the inside of the cutting fixed plate is provided with a tab scrap collecting assembly, and the inside formed by the left and right fixed supports is provided with a lifting assembly.

[0009] Preferably, the sliding assembly comprises slide rails, a sliding block, a cylinder fixing plate, and the rear end of the cutting fixing plate is symmetrically provided with slide rails, the cutting fixing plate is threadedly connected with the slide rails, the rear end of the slide rails is connected with the sliding block, the slide rails are slidingly connected with the sliding block, the rear end of the sliding block is provided with the cylinder fixing plate, and the sliding block is fixedly connected with the cylinder fixing plate.

[0010] Preferably, the cutting assembly comprises upper and lower cutting cylinders, a cutting blade, a cutting push rod, a gas joint and a mounting fixing hole, the inside of the upper and lower cutting cylinders is linked with the cutting push rod, the cutting push rod is slidingly connected with the inside of the upper and lower cutting cylinders, the bottom end of the cutting push rod is provided with the cutting blade, the cutting push rod and the cutting blade are threadedly connected through the mounting fixing hole, the top of the upper and lower cutting cylinders is provided with the gas joint, the left side of the cylinder fixing plate is internally provided with the upper and lower cutting cylinders, and the cylinder fixing plate is fixedly connected with the upper and lower cutting cylinders.

[0011] Preferably, the tab scrap collecting assembly comprises a vacuum generator, a tab scrap collecting pipeline, a tab scrap collecting box and a filter screen, the inside of the cutting fixing plate is provided with the vacuum generator, the rear end of the vacuum generator is provided with the tab scrap collecting pipeline, the bottom end of the tab scrap collecting pipeline is provided with the tab scrap collecting box, the rear part of the inner wall of the tab scrap collecting pipeline is provided with the filter screen, and the vacuum generator, the tab scrap collecting pipeline, the tab scrap collecting box and the filter screen are fixedly connected.

[0012] Preferably, the lifting assembly comprises a driving lead screw, a limiting rod, a driving motor, a lifting fixing plate and a driving plate, the inside of the fixed support is provided in the middle with the lifting fixing plate, the top and the bottom of the lifting fixing plate are symmetrically provided with two driving motors, the output end of the driving motor is provided with the driving lead screw, the top end of the driving lead screw is provided with the limiting rod, the driving lead screw is rotatably connected with the limiting rod, the outside of the driving lead screw is provided with the driving plate, and the driving plate is threadedly connected with the outside of the driving lead screw.

[0013] Preferably, the workbench base and the positioning bottom plate, the positioning bottom plate and the fixed support, and the fixed support and the cutting fixing plate are threadedly connected.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The utility model discloses a cutting of lithium battery pole ear is completed through the cooperation of up -and -down cutting assembly, and the residual piece after cutting is collected through the adsorption of vacuum generator, avoids the residual piece to stick on the blade or the pole ear of electric core, and the cutting blade can be installed and disassembled, avoids the dulling of blade to cause the wire drawing of pole ear, and the lifting assembly avoids the problem that the gap fluctuation between up -and -down cutting assembly is big, and the height of cutting position can be adjusted simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure of the utility model split schematic diagram;

[0018] Figure 2 It is the whole structure of the utility model overhead schematic diagram;

[0019] Figure 3 It is the whole structure of the utility model front view schematic diagram;

[0020] Figure 4 It is the part structure cutting cylinder structure schematic diagram of the utility model;

[0021] Mark number explanation: 1, workstation base;2, positioning bottom plate;3, fixed support;4, drive screw;5, limit rod;6, vacuum generator;7, cutting fixed plate;8, pole ear residual piece collection pipeline;9, pole ear residual piece collection box;10, filter screen;11, slide rail;12, sliding block;13, up -and -down cutting cylinder;14, cutting blade;15, cylinder fixed plate;16, cutting push rod;17, drive motor;18, lifting fixed plate;19, drive plate;20, gas connector;21, installation fixed hole. DETAILED DESCRIPTION

[0022] In the description of the utility model, it is explained that, unless another explicit provision and limitation, the terms "installation", "set with", "sleeve / interface", "connection" and the like should be broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according of the specific circumstances.

[0023] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0024] The application discloses a lithium battery tab cutting device of cylinder combination, which comprises a workbench base 1, the top of the workbench base 1 is provided with a positioning bottom plate 2, the top of the positioning bottom plate 2 is provided with fixed supports 3 on both sides, the rear end of the fixed support 3 is provided with a cutting fixed plate 7, the rear end of the cutting fixed plate 7 is provided with a sliding assembly and a cutting assembly, the inside of the cutting fixed plate 7 is provided with a tab residual piece collecting assembly, and the inside formed by the left and right fixed supports 3 is provided with a lifting assembly.

[0025] The sliding assembly comprises sliding rails 11, sliding blocks 12 and a cylinder fixed plate 15, the rear end of the cutting fixed plate 7 is symmetrically provided with the sliding rails 11, the cutting fixed plate 7 is threadedly connected with the sliding rails 11, the rear end of the sliding rail 11 is connected with the sliding block 12, the sliding rail 11 is slidably connected with the sliding block 12, the rear end of the sliding block 12 is provided with the cylinder fixed plate 15, and the sliding block 12 is fixedly connected with the cylinder fixed plate 15, so that the cutting assembly is stably parallel in the lifting process through the action of the sliding assembly.

[0026] The cutting assembly comprises upper and lower cutting cylinders 13, cutting blades 14, cutting push rods 16, gas connectors 20 and mounting fixed holes 21, the inside of the upper and lower cutting cylinders 13 is linked with the cutting push rods 16, the cutting push rods 16 are slidably connected with the inside of the upper and lower cutting cylinders 13, the bottom end of the cutting push rod 16 is provided with the cutting blade 14, the cutting push rod 16 is threadedly connected with the cutting blade 14 through the mounting fixed hole 21, the top of the upper and lower cutting cylinders 13 is provided with the gas connector 20, the left side of the cylinder fixed plate 15 is provided with the upper and lower cutting cylinders 13, and the cylinder fixed plate 15 is fixedly connected with the upper and lower cutting cylinders 13, so that the lithium battery tab is cut through the upper and lower cutting cylinders 13 pushing the cutting blade 14.

[0027] The tab residual piece collecting assembly comprises a vacuum generator 6, a tab residual piece collecting pipeline 8, a tab residual piece collecting box 9, a filter screen 10, the inside of the cutting fixed plate 7 is provided with the vacuum generator 6, the rear end of the vacuum generator 6 is provided with the tab residual piece collecting pipeline 8, the bottom end of the tab residual piece collecting pipeline 8 is provided with the tab residual piece collecting box 9, the rear part of the inner wall of the tab residual piece collecting pipeline 8 is provided with the filter screen 10, the vacuum generator 6, the tab residual piece collecting pipeline 8, the tab residual piece collecting box 9 and the filter screen 10 are fixedly connected, so that the tab residual piece is moved to the inside of the tab residual piece collecting pipeline 8 through the vacuum generator 6 after the tab cutting is completed, thereby completing the collection of the tab residual piece.

[0028] The lifting assembly comprises a driving screw rod 4, a limiting rod 5, a driving motor 17, a lifting fixed plate 18, a driving plate 19, the inner side middle part of the fixed support 3 is provided with the lifting fixed plate 18, the top and the bottom of the lifting fixed plate 18 are symmetrically provided with two driving motors 17, the output end of the driving motor 17 is provided with the driving screw rod 4, the top end of the driving screw rod 4 is provided with the limiting rod 5, the driving screw rod 4 and the limiting rod 5 are rotationally connected, the outer side of the driving screw rod 4 is provided with the driving plate 19, and the driving plate 19 is screw-connected with the outer side of the driving screw rod 4, and the overall gap between the up-and-down cutting is completed through the lifting assembly.

[0029] The workbench base 1 and the positioning bottom plate 2, the positioning bottom plate 2 and the fixed support 3, and the fixed support 3 and the cutting fixed plate 7 are all screw-connected.

[0030] Working principle: when the lithium battery tab needs to be cut by the device, after the carrier loaded with the battery is clamped and positioned at the tab cutting position, the up-and-down cutting cylinder 13 is started, the up-and-down cutting cylinder 13 drives the cutting blade 14 to complete the cutting of the tab, at the same time, the vacuum generator 6 is started, the vacuum generator 6 adsorbs the tab scraps to move to the inside of the tab scrap collecting pipeline 8, the tab scraps are prevented from being adsorbed into the inside of the vacuum generator 6 through the action of the filter screen 10, the tab scraps are concentrated and collected in the tab scrap collecting box 9 through the action of the tab scrap collecting pipeline 8, when the gap between the two cutting assemblies is large or the cutting position height needs to be adjusted, the driving motor 17 is started to complete lifting.

[0031] The basic principle, main features and advantages of the device are shown and described above. It should be understood by those skilled in the art that the device is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the device, and are not used to limit the device, various changes and improvements of the device can be made without departing from the spirit and scope of the device, and these changes and improvements all fall within the scope of the claimed device. The protection scope of the device is defined by the appended claims and their equivalents.

Claims

1. A kind of lithium battery tab cutting device of cylinder combination, including workbench base (1), it is characterized in that: The top of the workbench base (1) is provided with a positioning bottom plate (2), the top of the positioning bottom plate (2) is provided with a fixed support (3) on both sides, the rear end of the fixed support (3) is provided with a cutting fixed plate (7), the rear end of the cutting fixed plate (7) is provided with a sliding assembly and a cutting assembly, the inside of the cutting fixed plate (7) is provided with a tab scrap collecting assembly, and the inside formed by the left and right fixed supports (3) is provided with a lifting assembly.

2. The device for cutting the tabs of the lithium battery poles of the cylinder combination according to claim 1, characterized in that: The sliding assembly comprises slide rails (11), sliding blocks (12) and cylinder fixed plates (15), the rear end of the cutting fixed plate (7) is symmetrically provided with the slide rails (11), the cutting fixed plate (7) and the slide rails (11) are threadedly connected, the rear end of the slide rail (11) is connected with the sliding block (12), the slide rail (11) and the sliding block (12) are slidably connected, and the rear end of the sliding block (12) is provided with the cylinder fixed plate (15). The sliding block (12) and the cylinder fixed plate (15) are fixedly connected.

3. The device for cutting the tabs of the lithium battery poles combined with the air cylinder according to claim 2, characterized in that: The cutting assembly comprises up-down cutting cylinders (13), cutting blades (14), cutting push rods (16), gas connectors (20) and mounting fixed holes (21), the inside of the up-down cutting cylinder (13) is connected with the cutting push rod (16), the cutting push rod (16) and the inside of the up-down cutting cylinder (13) are slidably connected, the bottom end of the cutting push rod (16) is provided with the cutting blade (14), the cutting push rod (16) and the cutting blade (14) are threadedly connected through the mounting fixed hole (21), the top of the up-down cutting cylinder (13) is provided with the gas connector (20), the left side of the cylinder fixed plate (15) is provided with the up-down cutting cylinder (13), and the cylinder fixed plate (15) and the up-down cutting cylinder (13) are fixedly connected.

4. The device for cutting the tabs of the lithium battery poles combined with the air cylinder according to claim 1, characterized in that: The tab scrap collecting assembly comprises a vacuum generator (6), a tab scrap collecting pipeline (8), a tab scrap collecting box (9), a filter screen (10), the inside of the cutting fixed plate (7) is provided with the vacuum generator (6), the rear end of the vacuum generator (6) is provided with the tab scrap collecting pipeline (8), the bottom end of the tab scrap collecting pipeline (8) is provided with the tab scrap collecting box (9), the rear part of the inner wall of the tab scrap collecting pipeline (8) is provided with the filter screen (10), and the vacuum generator (6), the tab scrap collecting pipeline (8), the tab scrap collecting box (9) and the filter screen (10) are fixedly connected.

5. The device for cutting the tabs of the lithium battery poles combined with the air cylinder according to claim 1, characterized in that: Said lifting assembly includes drive screw rod (4), limit rod (5), drive motor (17), lifting fixed plate (18), drive plate (19), the inside middle part of the fixed support (3) is provided with lifting fixed plate (18), the top and bottom of lifting fixed plate (18) are provided with two drive motors (17) symmetrically, the output end of drive motor (17) is provided with drive screw rod (4), the top end of drive screw rod (4) is provided with limit rod (5), drive screw rod (4) and limit rod (5) are rotatably connected, the outside of drive screw rod (4) is provided with drive plate (19), drive plate (19) is screw connected with the outside of drive screw rod (4).

6. The device for cutting the tabs of the lithium battery poles combined with the air cylinder according to claim 1, characterized in that: The workbench base (1) and the positioning bottom plate (2), the positioning bottom plate (2) and the fixed support (3), the fixed support (3) and the cutting fixed plate (7) are all connected by threads.