Tab stacking and cutting machine
The automated design of the tab stacking and cutting machine solves the problems of low efficiency in manual operation and difficulty in ensuring tab size alignment, achieving efficient and accurate tab cutting and reducing costs.
Patent Information
- Application Number
- CN202423275090.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing technologies, the cutting of electrode tabs is mostly done manually, which results in low work efficiency and makes it difficult to guarantee the size and alignment of the electrode tabs, affecting the test results and increasing cost.
A tab stacking and cutting machine was designed, including an unwinding module, a tension module, a stacking module and a cutting module. The automated process realizes the tensioning, stacking and cutting of foil materials, ensuring that the width and alignment of the foil materials meet the requirements, and forming tabs of a set size.
It improves the efficiency of electrode cutting, ensures the size and alignment of the electrodes, reduces cost losses, and enhances the accuracy of inspection.
Smart Images
Figure CN223947288U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery technology field especially relates to a tab stacking cutting machine. BACKGROUND
[0002] In the production process of the battery cell, the tab is welded on the main body of the battery cell, and then the cover plate is welded on the tab. In order to control the quality of the battery cell, metallographic detection is usually needed, and the object of metallographic detection is the welding area of the cover plate pin and the tab. Due to the high detection frequency, a large number of battery cells are needed, resulting in high cost loss.
[0003] To solve the problem of high cost loss, currently, an analog battery cell jig is used to replace the real battery cell body. The analog battery cell jig has low cost and can effectively reduce the cost loss. When using the analog battery cell jig, the tab needs to be welded with the analog battery cell jig. In this case, the tab needs to be cut separately to adapt to the analog battery cell jig. However, the current cutting of the stacked tab is mainly in the form of manual operation, which not only has low efficiency, but also can not guarantee the size, alignment and other parameters of the tab, which may affect the detection result. SUMMARY
[0004] The utility model provides a kind of tab stacking cutting machine, not only can be used to realize the automatic stacking cutting of tab, to improve work efficiency, it is also convenient to guarantee the size, alignment and other parameters of tab meet the requirements.
[0005] The utility model provides a kind of tab stacking cutting machine, comprising the unwinding module, tension module, stacking module, first cutting module and second cutting module that are sequentially arranged;
[0006] The unwinding module is used for foil roll to discharge, so that the foil moves towards the tension module in an unfolded state;
[0007] The tension module is used for tensioning the foil in an unfolded state;
[0008] The stacking module is used for stacking the foil, so that the foil is arranged in a stacked manner;
[0009] The first cutting module is used for cutting the foil along the width direction of the foil to form a foil stack structure with a specified number of layers;
[0010] The second cutting module is used for cutting the foil stack structure to form a tab with a specified size.
[0011] The lugs stacking and cutting machine provided by the utility model is provided with a unwinding module and a tension module, the foil material is tensioned in the unwinding process, so that the foil material is prevented from being wrinkled and deviated in the unwinding process. The stacking module and the first cutting module are arranged, so that the foil material can be stacked, and the first cutting module can cut the foil material after the stacking of the set number of layers is completed. The second cutting module can cut the foil material stack structure, so that the lug of the set size is formed. Since the stacking and cutting process of the lug is completed by the automatic process, the width and the alignment of the foil material meet the requirements in the stacking process, and the size and the alignment of the lug meet the requirements in the cutting process. In addition, compared with the manual cutting method, the lug stacking and cutting machine provided by the utility model is favorable for improving the work efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a whole structure schematic view of the lug stacking and cutting machine in the utility model embodiment;
[0013] Figure 2 It is a structure schematic view of the foil material roll in the utility model embodiment;
[0014] Figure 3 It is a structure schematic view of the unwinding module in the utility model embodiment;
[0015] Figure 4 It is a structure schematic view of the tension module and the stacking module in the utility model embodiment;
[0016] Figure 5 It is a cross-section structure schematic view of the foil material stack structure before being pressed in the utility model embodiment;
[0017] Figure 6 It is a structure schematic view of the first cutting module in the utility model embodiment;
[0018] Figure 7 It is a structure schematic view of the second cutting module in the utility model embodiment.
[0019] In the drawing:
[0020] 10-foil roll; 11-winding roller; 12-foil; 20-foil stack structure; 100-carrier; 200-unwinding module; 210-rotating structure; 220-first guide rail; 300-tension module; 310, 310z-tension roller; 400-stacking module; 410-stacking table; 420-foil fixing mechanism; 421-fixing clamping jaw; 430-second guide rail; 500-first cutting module; 510-first cutting device; 520-pressing assembly; 530-first mounting seat; 540-second mounting seat; 600-second cutting module; 610-second cutting device; 620-conveying mechanism; 621-carrier plate; 622-third guide rail; 623-moving structure. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0022] Referring to Figure 1 and Figure 2 , the tab stack cutting machine in the embodiments of the present application can include a carrier 100, an unwinding module 200 arranged on the carrier 100, a tension module 300, a stacking module 400, a first cutting module 500, and a second cutting module 600. The unwinding module 200, the tension module 300, the stacking module 400, the first cutting module 500, and the second cutting module 600 are arranged in sequence along the conveying direction of the foil 12.
[0023] It is worth noting that the foil 12 in the present embodiment can include copper foil and aluminum foil, so as to form positive and negative tabs, respectively.
[0024] The unwinding module 200 can be used to unwind the foil roll 10, so that the foil 12 can move towards the tension module 300 in an unfolded state. Specifically, referring to Figure 1 and Figure 3 , the unwinding module 200 can include two oppositely arranged rotating structures 210, and the arrangement direction of the two rotating structures 210 is parallel to the axis direction of the foil roll 10. The two rotating structures 210 are arranged in a spaced manner, so that the foil roll 10 can be placed between the two rotating structures 210.
[0025] As Figure 2As shown, the foil roll 10 can include a winding roller 11 and a foil 12 wound on the winding roller 11, and two ends of the winding roller 11 can be fixedly connected with the two rotating structures 210 respectively, so that the rotating structures 210 can support the foil roll 10. At this time, the winding roller 11 and the rotating structures 210 are coaxially arranged, and the rotating structures 210 can rotate around their own axes to drive the winding roller 11 to rotate. In the process of rotating the winding roller 11, the foil 12 wound on the winding roller 11 can be unfolded in a flat manner and then moved towards the tension module 300.
[0026] With reference back to Figure 3 Each rotating structure 210 can move relative to the carrier 100 along the arrangement direction of the two rotating structures 210, so as to change the distance between the two rotating structures 210, thereby being suitable for foil rolls 10 of different widths. When the specifications of the foil roll 10 change, only the distance between the two rotating structures 210 needs to be changed to realize the unwinding of the foil roll 10, which is beneficial to reduce the cost.
[0027] Exemplarily, the carrier 100 is provided with two groups of guide rail modules, and the two groups of guide rail modules are arranged correspondingly to the two rotating structures 210. Each group of guide rail modules can include two first guide rails 220 arranged in parallel, and the extension direction of the first guide rail 220 is parallel to the arrangement direction of the two rotating structures 210. The rotating structure 210 can be installed on the two first guide rails 220, and the rotating structure 210 can move relative to the first guide rail 220 along the extension direction of the first guide rail 220, so as to adjust the distance between the two rotating structures 210.
[0028] With reference back to Figure 1 And Figure 4 The tension module 300 in the embodiment can be used to tension the foil 12 in the unfolded state to avoid wrinkles and deviation of the foil 12 in the unfolding process, thereby ensuring the alignment of the tabs in the subsequent stacking and cutting process.
[0029] Specifically, the tension module 300 can include a plurality of tension rollers 310, and the axis direction of the tension roller 310 is parallel to the axis direction of the foil roll 10. The plurality of tension rollers 310 can form a plurality of tension structures, and each tension structure can include two tension rollers 310. The gap between the two tension rollers 310 in a tension structure can be the same as the thickness of the foil 12, so that when the foil 12 in the unfolded state passes through the gap between the two tension rollers 310, the foil 12 is in line contact with the surface of the tension roller 310, so that the tension roller 310 can tension the foil 12.
[0030] With reference back to Figure 1 And Figure 4 , Figure 4The arrow in the figure can be understood as the moving direction of the stacking table 410. The stacking module 400 in the embodiment can include a stacking table 410 arranged at the bottom of the tension roller 310 and a foil fixing mechanism 420, and the extending direction of the stacking table 410 is consistent with the axis direction of the tension roller 310. The stacking table 410 can move relative to the carrier table 100 in a direction perpendicular to the axis of the tension roller 310, so that the stacking table 410 can reciprocate to enable the foil to be stacked in a zigzag form on the stacking table 410.
[0031] The foil fixing mechanism 420 can be arranged at one end of the stacking table 410, and the foil fixing mechanism 420 can be used to fix the foil 12 stacked on the stacking table 410 to avoid the foil 12 from deviating during the reciprocating movement of the stacking table 410.
[0032] The foil fixing mechanism 420 can include a fixed clamping jaw 421, which can move relative to the stacking table 410 in the extending direction of the stacking table 410, and the fixed clamping jaw 421 can also move relative to the stacking table 410 in a direction perpendicular to the stacking table 410.
[0033] Specifically, the stacking table 410 can have a first station and a second station, which are located on both sides of a group of tension rollers 310z closest to the stacking table 410. In the initial state, the stacking table 410 is in the first station, and after the foil 12 passes through the tension roller 310z closest to the stacking table 410, the foil 12 can be placed on the stacking table 410 to form a first layer of foil stack. At this time, the fixed clamping jaw 421 can move towards the stacking table 410, so that the fixed clamping jaw 421 can be pressed against the first layer of foil stack, so that the foil stack and the stacking table 410 are fixed.
[0034] Subsequently, the stacking table 410 moves relative to the carrier table 100 from the first station to the second station, and since the second station is arranged horizontally offset from the tension roller 310z, the foil 12 passing through the tension roller 310z can be pulled towards the stacking table 410 located at the second station, thereby forming a second layer of foil stack. In this process, the fixed clamping jaw 421 moves synchronously with the stacking table 410, and when the second layer of foil stack is formed, the fixed clamping jaw 421 can first move away from the stacking table 410 in the extending direction of the stacking table 410, thereby being separated from the surface of the foil 12. Subsequently, the fixed clamping jaw 421 can move upwards relative to the carrier table 100 to above the stacking table 410, and then move towards the stacking table 410 to press the foil 12 against the stacking table 410.
[0035] Subsequently, the stacking table 410 moves again relative to the carrier table 100 from the second station back to the first station, and in the process, the foil 12 passing through the tension roller 310z can be pulled towards the stacking table 410 located at the first station, so as to form a third layer of foil stack. In this way, the stacking table 410 reciprocates, so as to complete the stacking of multiple layers of foil 12, and the foil 12 is stacked in a zigzag manner during the stacking process.
[0036] In the present embodiment, the distance between the stacking table 410 located at the first station and the tension roller 310z closest to the stacking table 410 in the direction perpendicular to the axis of the tension roller 310 is equal to the distance between the stacking table 410 located at the second station and the tension roller 310z closest to the stacking table 410. In this way, the size of each layer of foil 12 can be ensured to be the same, and the alignment between each layer of foil 12 can also be ensured, so as to ensure that the size and alignment of the tab formed by the final cutting meet the requirements.
[0037] Further, with reference to Figure 4 , the stacking module 400 in the present embodiment can further include a second guide rail 430 provided on the carrier table 100, and the extension direction of the second guide rail 430 is perpendicular to the axis direction of the tension roller 310. The stacking table 410 and the foil fixing mechanism 420 can be mounted on the second guide rail 430, so that the stacking table 410 and the foil fixing mechanism 420 as a whole can move relative to the second guide rail 430 along the extension direction of the second guide rail 430.
[0038] In addition, the foil fixing mechanism 420 can further be provided with a driving assembly to drive the fixed clamping jaw 421 to move relative to the stacking table 410 through the driving assembly.
[0039] With reference to Figure 1 and Figure 5 , the first cutting module 500 in the present embodiment can include a first cutting device 510 and a pressing assembly 520. The first cutting device 510 can be used to cut the foil 12 along the width direction of the foil 12, so as to form a foil stack structure 20 with a set number of layers. The pressing assembly 520 can be used to press the foil stack structure 20, so that the layers of foil 12 are tightly attached to each other, and the foil 12 is prevented from being offset to affect the alignment of the tab formed finally. It should be noted that the width direction of the foil 12 is the axis direction of the reel 410.
[0040] When the stacking table 410 is located at the second station, the second cutting device 510 can cut the foil 12. In addition, the pressing assembly 520 can be arranged at a side of the first cutting device 510 away from the tension roller 310, and the stacking table 410 can be moved by the second station towards the pressing assembly 520 so that the foil stack structure 20 can be aligned with the pressing assembly 520. The pressing assembly 520 can be moved towards the stacking table 410 to press the foil stack structure 20.
[0041] With reference to the above Figure 6 , the first cutting module 500 can further include a first mounting base 530 and a second mounting base 540 arranged along a direction in which the stacking module 400 and the first cutting module 500 are arranged, and the first cutting device 510 can be arranged at the first mounting base 530 and the pressing assembly 520 can be arranged at the second mounting base 540.
[0042] Further, the first cutting device 510 can be moved relative to the first mounting base 530 along a direction perpendicular to the table 100 so that the first cutting device 510 can be close to the foil 12 to cut the foil 12. The pressing assembly 520 can be moved relative to the second mounting base 540 along a direction perpendicular to the table 100 so that the pressing assembly 520 can be attached to the uppermost foil 12, and the pressing assembly 520 can press the foil stack structure 20 during the continuous downward movement of the pressing assembly 520 so that the foils 12 can be tightly attached to each other.
[0043] With reference to the above Figure 1 , Figures 5 to 7 The second cutting module 600 can be used to cut the foil stack structure 20 to form the electrode ear with a set size. Specifically, the second cutting module 600 can include a second cutting device 610 and a conveying mechanism 620, and the foil stack structure 20 can be transferred to the conveying mechanism 620 after the pressing assembly 520 completes the pressing work on the foil stack structure 20. The conveying mechanism 620 can drive the foil stack structure 20 to move towards the second cutting device 610 so that the second cutting device 610 can cut the foil stack structure 20.
[0044] In the embodiment, the second cutting device 610 can cut the foil stack structure 20 into multiple segment structures along the width direction of the foil 12, and each segment structure is the final electrode ear structure.
[0045] Based on this, the conveying mechanism 620 can include a carrier plate 621, which can be used to place the completed crimped foil stack structure 20, and a moving assembly, which can drive the carrier plate 621 to move along the width direction of the foil, so that different cutting positions of the foil stack structure 20 can be opposite to the second cutting device 610. The second cutting device 610 can move relative to the carrier 100 in a direction perpendicular to the carrier 100, so that the second cutting device 610 can be close to the foil stack structure 20, and after completing the cutting, the second cutting device 610 can also be away from the foil stack structure 20, so as to facilitate the movement of the foil stack structure 20 relative to the second cutting device 610.
[0046] For example, the moving assembly can include a third guide rail 622 arranged on the carrier 100, and the extending direction of the third guide rail 622 is consistent with the width direction of the foil. The third guide rail 622 can be provided with a moving structure 623, and the moving structure 623 can move relative to the third guide rail 622 along the extending direction of the third guide rail 622. Moreover, the moving structure 623 is fixedly connected with the carrier 621, and when the moving structure 623 moves relative to the third guide rail 622, the carrier plate 621 can be driven to move synchronously.
[0047] In this embodiment, after the second cutting device 610 completes the cutting of the foil stack structure 20, the conveying mechanism 620 can also drive the plurality of tabs to move away from the second cutting device 610, so as to facilitate the subsequent taking away of the tabs.
[0048] Alternatively, in some other embodiments, the second cutting device 610 can not only move relative to the carrier 100 in a direction perpendicular to the carrier 100, so that the second cutting device 610 can be close to the foil stack structure 20. The second cutting device 610 can also move relative to the carrier 100 along the width direction of the foil, so that the second cutting device 610 can be opposite to the cutting position of the foil stack structure 20.
[0049] The tab stacking and cutting machine in the embodiment of the utility model, set up pay off module and tension module, in the process of paying off the foil roll, the foil in the unfolded state is tensioned, so that the foil can be guaranteed not to appear wrinkle and deviation in the paying-off process. The stacking module and the first cutting module are arranged, so that the foil can be arranged in layers, and after completing the stacking of the set number of layers, the first cutting module can cut the foil. The second cutting module can cut the foil stack structure, so as to form tabs of a set size. Since the stacking and cutting process of the tabs relies on an automatic process, the width and alignment of the foil can meet the requirements in the stacking process of the foil, and the size and alignment of the tabs meet the requirements in the process of cutting the tabs. In addition, compared with the manual cutting mode, the tab stacking and cutting machine provided by the utility model is beneficial to improving the work efficiency.
[0050] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.
Claims
1. A tab stack slitting machine, characterized by, The unwinding module, the tension module, the stacking module, the first cutting module and the second cutting module are sequentially arranged. The unwinding module is used for unwinding the foil roll to move the foil in an unwound state towards the tension module. The tension module is used for tensioning the foil in the unwound state. The stacking module is used for stacking the foil to arrange the foil in a laminated manner. The first cutting module is used for cutting the foil along the width direction of the foil to form a foil laminated structure with a set number of layers. The second cutting module is used for cutting the foil laminated structure to form a tab with a set size.
2. The tab stack slitting machine of claim 1, wherein, The unwinding module comprises two rotating structures arranged oppositely and spaced apart to allow the foil roll to be located between the two rotating structures. The rotating structure is coaxially arranged with the foil roll and can rotate around its own axis to drive the foil roll to rotate around the axis of the rotating structure.
3. The tab stack slitting machine of claim 2, wherein, The rotating structure can move along the arrangement direction of the two rotating structures to change the distance between the two rotating structures.
4. The tab stack slitting machine of claim 1, wherein, The tension module comprises a plurality of tension rollers, and the axis direction of the tension rollers is parallel to the axis direction of the foil roll. When the foil passes through the tension rollers, the foil is in line contact with the surface of the tension rollers.
5. The tab stack slitting machine of claim 4, wherein, The stacking module comprises a stacking table arranged at the bottom of the tension rollers, and the extension direction of the stacking table is consistent with the axis direction of the tension rollers.
6. The tab stack slitting machine of claim 5, wherein, The stacking table can move along the direction perpendicular to the axis direction of the tension rollers to drive the foil to be stacked in a zigzag manner on the stacking table.
7. The tab stack slitting machine of claim 6, wherein, The stacking module further comprises a foil fixing mechanism for fixing the foil stacked on the stacking table to the stacking table. The foil fixing mechanism comprises a fixing clamp arranged on one side of the stacking table.
8. The tab stack slitting machine of claim 1, wherein, The fixing clamp can move relative to the stacking table along the extension direction of the stacking table and can move relative to the stacking table along the direction perpendicular to the stacking table.
9. The tab stack slitting machine of claim 8, wherein, The first cutting module comprises a first cutting device for cutting the foil along the width direction of the foil.
10. The tab stack slitting machine of claim 1, wherein, The first cutting module further comprises a pressing assembly for pressing the foil laminated structure to make the foil layers tightly adhere to each other. The second cutting module comprises a second cutting device and a conveying mechanism. The conveying mechanism is used for placing the foil laminated structure and driving the foil laminated structure to move along the width direction of the foil to make the second cutting device face the cutting part of the foil laminated structure and cut the foil laminated structure.