Battery cell tab cutting device
By introducing a pressing mechanism and a guide system into the battery cell ear cutting device, the problem of displacement of the battery cell ear during the cutting process is solved, and efficient and stable cutting effect is achieved, improving the cutting quality and accuracy.
Patent Information
- Application Number
- CN202422351419.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The battery cell ears are easily displaced during the cutting process, resulting in poor consistency of cutting and affecting the cutting quality.
A cutting mechanism including an upper cutting knife, a lower cutting knife, a first driving member and a second driving member is adopted. The compression mechanism is combined with the pressing mechanism to press the extreme ear on the top of the lower cutting knife. The upper cutting knife and the lower cutting knife are driven close to each other through the first driving member and the second driving member to cut, and the stability is improved with the guide column and the guide hole to prevent the extreme ear from being displaced.
It improves the cutting efficiency and consistency of cutting, ensures the cutting quality of the battery cell ears, avoids the displacement of the ears during the cutting process, and improves the cutting accuracy and equipment stability.
Smart Images
Figure CN223171984U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery manufacturing, and particularly relates to a core ear cutting device for a battery cell. Background Art
[0002] During the production process of a battery, it is necessary to cut the tabs on the battery core. The existing cutting device includes a frame, a lower cutting knife, an upper cutting knife, and a cylinder for driving the upper cutting knife to move up and down. The cylinder is used to drive the upper cutting knife to descend, so that the upper cutting knife and the lower cutting knife cooperate to cut the tabs of the battery core.
[0003] However, during the cutting process, the tabs of the battery core are prone to displacement, resulting in poor cutting consistency and affecting the cutting quality. Summary of the Utility Model
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a core ear cutting device for a battery cell, which can improve the cutting efficiency. At the same time, it can prevent the tabs of the battery core from being displaced during the cutting process, improve the cutting consistency of the tabs of the battery core, and ensure the cutting quality of the tabs of the battery core.
[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:
[0006] A core ear cutting device for a battery cell includes a frame; a cutting mechanism, which includes an upper cutting knife, a lower cutting knife corresponding to the upper cutting knife, a first driving member for driving the upper cutting knife to move up and down, and a second driving member for driving the lower cutting knife to move up and down. The lower cutting knife is located below the upper cutting knife. The first driving member is arranged at the top of the frame, and the second driving member is arranged at the bottom of the frame; a pressing mechanism is arranged on one side of the upper cutting knife and directly above the lower cutting knife. The top of the lower cutting knife is a plane, and the pressing mechanism is used to press the tabs of the battery core against the top of the lower cutting knife.
[0007] As a further improvement of the above technical solution, an upper knife seat is arranged at the output end of the first driving member, the upper cutting knife is installed on one side of the upper knife seat, a lower knife seat is arranged at the output end of the second driving member, and the lower cutting knife is installed on one side of the lower knife seat.
[0008] As a further improvement of the above technical solution, a fixed seat is arranged on the frame, a guide post is arranged on the fixed seat, the guide post is vertically arranged, and both the lower knife seat and the upper knife seat are provided with guide holes, and the two guide holes are sleeved on the guide post.
[0009] As a further improvement of the above technical solution, the number of the guide posts is four, and the four guide posts are distributed in a rectangular array along the upper knife seat.
[0010] As a further improvement of the above technical solution, the lower tool holder is provided with a first blanking channel, the fixed seat is provided with a second blanking channel, the first blanking channel is located on one side of the lower cutting knife, the first blanking channel corresponds to the second blanking channel, and both the first blanking channel and the second blanking channel accommodate the cut waste materials to pass through.
[0011] As a further improvement of the above technical solution, the pressing mechanism includes a support, an elastic member disposed on the support, and a pressing block disposed on the elastic member. The support is disposed on one side of the upper cutting knife, and the bottom of the pressing block corresponds to the top of the lower cutting knife.
[0012] As a further improvement of the above technical solution, the elastic member is a compression spring. One end of the compression spring is connected to the support, and the other end of the compression spring is connected to the top of the pressing block.
[0013] As a further improvement of the above technical solution, a sliding rod is disposed between the support and the pressing block. The sliding rod is vertically disposed, the sliding rod is slidably connected to the support, the compression spring is sleeved on the outer periphery of the sliding rod, and the pressing block is disposed at the bottom end of the sliding rod.
[0014] As a further improvement of the above technical solution, a sliding sleeve is disposed in the support for sleeving the sliding rod.
[0015] As a further improvement of the above technical solution, a limiting block is further disposed on the top of the lower tool holder, and the height of the limiting block is higher than the protruding heights of the upper cutting knife and the lower cutting knife.
[0016] The beneficial effects of the present invention are as follows: The present invention provides a cutting device for the pole ear of an electric core. By simultaneously driving the upper cutting knife and the lower cutting knife to approach each other through the first driving member and the second driving member to cut out the waste of the pole ear of the electric core, the cutting efficiency can be improved. By providing a pressing mechanism, the pole ear of the electric core can be pressed against the top of the lower cutting knife. Thus, it is possible to prevent the pole ear of the electric core from shifting during the cutting process, improve the consistency of the cutting of the pole ear of the electric core, and ensure the cutting quality of the pole ear of the electric core. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 is a schematic structural diagram of a cutting device for the pole ear of an electric core according to an embodiment of the present invention;
[0019] Figure 2 is Figure 1 a partial three-dimensional structural diagram of
[0020] Figure 3 isFigure 2 Side view;
[0021] Figure 4 is Figure 3 Cross-sectional view.
[0022] Reference numerals: 100 - frame, 110 - upper cutting knife, 120 - lower cutting knife, 130 - first driving member, 140 - second driving member, 150 - pressing mechanism, 160 - upper tool holder, 170 - lower tool holder, 180 - fixed seat, 190 - guide post, 200 - guide hole, 210 - first blanking channel, 220 - second blanking channel, 230 - support, 240 - compression spring, 250 - pressing block, 260 - slide bar, 270 - sliding sleeve, 280 - limiting block. Detailed implementation manners
[0023] The following will clearly and completely describe the concept, specific structure and technical effects of the present utility model in combination with embodiments and drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all connection / connection relationships involved in the patent do not simply refer to direct connection of components, but refer to more optimal connection structures that can be formed by adding or reducing connection accessories according to specific implementation situations. Each technical feature in the creation of the present utility model can be combined interactively without conflicting with each other.
[0024] Referring to Figures 1 to 4 , a cell tab cutting device provided by an example of the present utility model includes a frame 100, a cutting mechanism and a pressing mechanism 150.
[0025] Among them, the cutting mechanism includes an upper cutting knife 110, a lower cutting knife 120, a first driving member 130 and a second driving member 140. The lower cutting knife 120 is located below the upper cutting knife 110, the upper cutting knife 110 corresponds to the lower cutting knife 120, the first driving member 130 is used to drive the upper cutting knife 110 to move up and down, the second driving member 140 is used to drive the lower cutting knife 120 to move up and down. The first driving member 130 is arranged at the top of the frame 100, and the second driving member 140 is arranged at the bottom of the frame 100. The cell tab to be cut is placed between the upper cutting knife 110 and the lower cutting knife 120. The first driving member 130 and the second driving member 140 drive the upper cutting knife 110 and the lower cutting knife 120 to approach each other at the same time, and the waste of the cell tab can be cut out, thereby improving the cutting efficiency.
[0026] In terms of position, the pressing mechanism 150 is arranged on one side of the upper cutting knife 110 and directly above the lower cutting knife 120.
[0027] Specifically, the top of the lower cutting knife 120 is a flat surface, and the pressing mechanism 150 is used to press the electrode tab of the battery cell against the top of the lower cutting knife 120. Thus, it can prevent the displacement of the electrode tab of the battery cell during the cutting process, improve the consistency of the cutting of the electrode tab of the battery cell, and ensure the cutting quality of the electrode tab of the battery cell.
[0028] Furthermore, a upper knife seat 160 is provided at the output end of the first driving member 130, the upper cutting knife 110 is installed on one side of the upper knife seat 160, a lower knife seat 170 is provided at the output end of the second driving member 140, and the lower cutting knife 120 is installed on one side of the lower knife seat 170. Thus, it is convenient for the disassembly and assembly of the upper cutting knife 110 and the lower cutting knife 120.
[0029] Still further, a fixed seat 180 is provided on the frame 100, a guiding column 190 is provided on the fixed seat 180, the guiding column 190 is vertically arranged, both the lower knife seat 170 and the upper knife seat 160 are provided with guiding holes 200, and both of the two guiding holes 200 are sleeved on the guiding column 190. When the first driving member 130 drives the upper knife seat 160 to move up and down and the second driving member 140 drives the lower knife seat 170 to move up and down, both the upper knife seat 160 and the lower knife seat 170 slide along the length direction of the guiding column 190. Thus, it can improve the stability when the upper knife seat 160 and the lower knife seat 170 move, ensure the cutting accuracy, and avoid phenomena such as wire drawing, burrs or incomplete cutting at the edge of the electrode tab of the battery cell after cutting.
[0030] Specifically, the number of the guiding columns 190 is four, and the four guiding columns 190 are distributed in a rectangular array along the upper knife seat 160. Correspondingly, both the upper knife seat 160 and the lower knife seat 170 are provided with four guiding holes 200. Thus, it can further improve the stability when the upper knife seat 160 and the lower knife seat 170 move.
[0031] In some preferred embodiments, the lower knife seat 170 is provided with a first material discharging channel 210, the fixed seat 180 is provided with a second material discharging channel 220, the first material discharging channel 210 is located on one side of the lower cutting knife 120, the first material discharging channel 210 corresponds to the second material discharging channel 220. After the upper cutting knife 110 and the lower cutting knife 120 cut the electrode tab of the battery cell, the waste material falls into the first material discharging channel 210 and then falls from the first material discharging channel 210 and the second material discharging channel 220 to the lower part of the frame 100 in sequence. The operator can use a material receiving tool to collect the waste material. Thus, it can prevent the waste material from accumulating on the lower knife seat 170 and ensure the normal operation of the equipment.
[0032] In some preferred embodiments, the pressing mechanism 150 includes a support 230, an elastic member disposed on the support 230, and a pressing block 250 disposed on the elastic member. The support 230 is disposed on one side of the upper cutter 110. The bottom of the pressing block 250 corresponds to the top of the lower cutter 120. Specifically, the elastic member is a compression spring 240. One end of the compression spring 240 is connected to the support 230, and the other end of the compression spring 240 is connected to the top of the pressing block 250.
[0033] It can be understood that when cutting the electrode tab of the battery cell, the first driving member 130 drives the upper cutter 110 to descend, and the second driving member 140 drives the lower cutter 120 to ascend. The upper cutter 110 drives the entire pressing mechanism 150 to descend, so that the bottom of the pressing block 250 first contacts the top of the electrode tab of the battery cell, and the top of the lower cutter 120 contacts the bottom of the electrode tab of the battery cell. Then, the upper cutter 110 continues to descend, and the upper cutter 110 drives the support 230 to descend. At this time, the lower cutter 120 blocks the pressing block 250 from continuing to descend, the compression spring 240 is compressed, and by using the elastic force of the compression spring 240, the pressing block 250 presses the electrode tab of the battery cell against the top of the lower cutter 120. At the same time, when the upper cutter 110 continues to descend, the upper cutter 110 and the lower cutter 120 cooperate to cut the electrode tab of the battery cell. Thus, the utilization rate of the first driving member 130 can be improved, and the production cost of the equipment can be saved.
[0034] Further, a slide bar 260 is disposed between the support 230 and the pressing block 250. The slide bar 260 is vertically disposed and is slidably connected to the support 230. The compression spring 240 is sleeved on the outer periphery of the slide bar 260, and the pressing block 250 is disposed at the bottom end of the slide bar 260.
[0035] It can be understood that on the one hand, during the descent of the pressing block 250, the slide bar 260 can support the pressing block 250 to prevent the pressing block 250 from shaking. On the other hand, during the process of the pressing block 250 pressing the electrode tab of the battery cell, the relative sliding between the slide bar 260 and the support 230 can ensure that the pressing block 250 does not shift. Thus, the stability of the equipment can be improved.
[0036] Furthermore, a sliding sleeve 270 is disposed inside the support 230. The sliding sleeve 270 is used to sleeve the slide bar 260, which can prevent the slide bar 260 from directly contacting the support 230, avoid wear of the support 230, and improve the service life of the support 230.
[0037] It should be noted that when the sliding sleeve 270 is worn, the sliding sleeve 270 can be directly replaced, which improves the convenience of later maintenance.
[0038] In some preferred embodiments, a limiting block 280 is further provided at the top of the lower knife base 170. The height of the limiting block 280 is higher than the protruding heights of the upper cutter 110 and the lower cutter 120. During the cutting process, the upper knife base 160 abuts against the top of the limiting block 280, thereby avoiding collisions between the upper cutter 110 and the lower knife base 170 and between the lower cutter 120 and the upper knife base 160, and ensuring the safety of the cutting process.
[0039] In some preferred embodiments, the first driving member 130 is an electric cylinder, and the second driving member 140 is a cylinder. The electric cylinder can control the moving speed and distance of the upper knife base 160 to improve the cutting accuracy. The cylinder can directly drive the lifting of the lower knife base 170, and its structure is simple and the cost is low.
[0040] The above is a specific description of the preferred embodiments of the present invention, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A cutting device for battery tab, characterized in that, Comprising: Frame; Cutting mechanism, including an upper cutting knife, a lower cutting knife corresponding to the upper cutting knife, a first driving member for driving the upper cutting knife to move up and down, and a second driving member for driving the lower cutting knife to move up and down. The lower cutting knife is located below the upper cutting knife. The first driving member is arranged at the top of the frame, and the second driving member is arranged at the bottom of the frame; Pressing mechanism, arranged on one side of the upper cutting knife and directly above the lower cutting knife. The top of the lower cutting knife is a plane, and the pressing mechanism is used to press the electrode tab of the battery cell against the top of the lower cutting knife.
2. The ear cutting device for battery cells according to claim 1, wherein The output end of the first driving member is provided with an upper knife seat, and the upper cutting knife is installed on one side of the upper knife seat. The output end of the second driving member is provided with a lower knife seat, and the lower cutting knife is installed on one side of the lower knife seat.
3. The cutting device for the electrode tab of an electric core according to claim 2, wherein A fixed seat is arranged on the frame, and a guide post is arranged on the fixed seat. The guide post is arranged vertically. Both the lower knife seat and the upper knife seat are provided with guide holes, and the two guide holes are sleeved on the guide post.
4. The cell tab cutting device according to claim 3, wherein, The number of the guide posts is four, and the four guide posts are distributed in a rectangular array along the upper knife seat.
5. The ear cutting device for battery cells according to claim 3, characterized in that, The lower knife seat is provided with a first blanking channel, and the fixed seat is provided with a second blanking channel. The first blanking channel is located on one side of the lower cutting knife, and the first blanking channel corresponds to the second blanking channel. Both the first blanking channel and the second blanking channel accommodate the cut waste to pass through.
6. The ear cutting device for battery cells according to claim 1, wherein The pressing mechanism includes a support, an elastic member arranged on the support, and a pressing block arranged on the elastic member. The support is arranged on one side of the upper cutting knife, and the bottom of the pressing block corresponds to the top of the lower cutting knife.
7. The ear cutting device for battery cells according to claim 6, characterized in that, The elastic member is a compression spring. One end of the compression spring is connected to the support, and the other end of the compression spring is connected to the top of the pressing block.
8. A cutting device for the tab of an electrode core according to claim 7, characterized in that, A sliding rod is arranged between the support and the pressing block. The sliding rod is arranged vertically. The sliding rod is slidably connected to the support. The compression spring is sleeved on the outer periphery of the sliding rod, and the pressing block is arranged at the bottom end of the sliding rod.
9. The ear cutting device for battery cells according to claim 8, wherein, A sliding sleeve is arranged inside the support, and the sliding sleeve is used to sleeve the sliding rod.
10. The ear cutting device for battery cells according to claim 2, characterized in that, A limiting block is further arranged on the top of the lower knife seat, and the height of the limiting block is higher than the protruding height of the upper cutting knife and the lower cutting knife.