Tab cutter for cutting tabs
By designing the interval setting of the electrode cutting tool assembly, the problem of complex electrode rolling and cutting process was solved, achieving the effect of simplifying the process and improving the mechanical strength of the electrode.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-13
AI Technical Summary
The existing technology has a complex electrode loop cutting process, which leads to increased tolerance in the electrode loop groove area, reduced mechanical strength, and additional punching steps.
A tab cutting tool is designed, comprising first and second cutting tool assemblies spaced apart and adjacent to each other along the length of the tab, with unequal distances between the second cutting tool assembly and the first cutting tool assembly. The tab is cut simultaneously by the two cutting tool assemblies, avoiding punching the cut and improving mechanical strength.
The electrode cutting process has been simplified, the mechanical strength of the electrode has been improved, subsequent cutting procedures have been reduced, the consistency of electrode roll specifications has been ensured, and secondary slitting has been avoided.
Smart Images
Figure CN223989127U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery cell processing technology, and more specifically, to a tab cutting tool for tab cutting. Background Technology
[0002] During the manufacturing process, large rolls of tabs need to be cut into smaller rolls; tab grooves are left on the tab rolls. In existing wound lithium-ion battery tab-centered electrode structures, during the cleaning of tab grooves on large rolls, due to cutting tolerances—that is, the distance between tab groove areas and the distance between cutters cannot always be the same locally—the tolerance gradually increases with the increase of the number of cutters and tab grooves. When slitting large sheets, it is impossible to cut precisely to the edge of the tab groove. Therefore, during slitting, a 1-2mm material area is reserved in the tab groove, and then this area is punched out. This method reduces the mechanical strength of the electrode because a notch is punched out, and it adds an extra punching step. Utility Model Content
[0003] The main purpose of this invention is to provide a tab cutting tool for tab cutting, so as to solve the problem of complex tab roll cutting process in the prior art.
[0004] To achieve the above objectives, according to one aspect of the present invention, a tab cutting tool for tab cutting is provided. Along the length of the tab, the tab has spaced-apart cleaning grooves. The tab cutting tool includes a frame; a plurality of first cutting tool assemblies, each disposed on the frame, with a first cutting tool assembly corresponding to each adjacent cleaning groove along the length of the tab; and a second cutting tool assembly, disposed on the frame, positioned between adjacent first cutting tool assemblies along the length of the tab, and corresponding to the area between adjacent cleaning grooves.
[0005] Furthermore, the distance between the second tool assembly and one of the first tool assemblies is greater than the distance between the second tool assembly and the other of the first tool assemblies.
[0006] Furthermore, each of the first tool assemblies is located on the same side of each of the second tool assemblies.
[0007] Furthermore, the distance between adjacent first and second tool assemblies is the same.
[0008] Furthermore, the first tool assembly includes a first upper blade disposed on the upper part of the frame; a first lower blade disposed on the lower part of the frame; a material passage gap exists between the first upper blade and the first lower blade; and at least one of the first upper blade and the first lower blade is movably connected to the frame along the height direction of the frame.
[0009] Furthermore, the second tool assembly includes: a second upper blade disposed on the upper part of the frame; and a second lower blade disposed on the lower part of the frame. There is a material passage gap between the second upper blade and the second lower blade. Along the height direction of the frame, at least one of the second upper blade and the second lower blade is movably connected to the frame.
[0010] Furthermore, the positions of the first tool assembly and / or the second tool assembly are adjustable along the width direction of the frame.
[0011] Furthermore, the first tool assembly and / or the second tool assembly includes a first mounting structure, and a plurality of second mounting structures are spaced apart on the frame along the length direction of the frame, wherein the first mounting structure can selectively cooperate with the second mounting structure.
[0012] Furthermore, the first mounting structure and the second mounting structure, one of which is a protrusion and the other is a slot.
[0013] Furthermore, along the width direction of the frame, the first tool assembly and / or the second tool assembly are slidably connected to the frame.
[0014] By applying the technical solution of this utility model, the following technical effects are achieved:
[0015] During the slitting process of the electrode tabs, an additional set of cutting tools is added to cut away the cleaning grooves on the tabs. This method of cutting the tabs eliminates the need for punch cuts, improving their mechanical strength. Furthermore, the simultaneous cutting of the tabs by two tools reduces subsequent cutting steps and simplifies the process. Attached Figure Description
[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0017] Figure 1 This diagram shows the structural schematic of the mating of the electrode lug and the electrode lug cutter of this application;
[0018] Figure 2 A schematic diagram of the structure of the electrode tool of this application is shown.
[0019] The above figures include the following reference numerals:
[0020] 1. Frame; 2. First tool assembly; 3. Second tool assembly. Detailed Implementation
[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0023] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0024] To address the problem of complex electrode cutting processes in existing technologies, this application provides an electrode cutting tool for electrode cutting.
[0025] See Figure 1 and Figure 2 A tab cutting tool for cutting tabs has cleaning grooves spaced apart on the tab along its length. The tab cutting tool includes: a frame 1, multiple first tool assemblies 2 and second tool assemblies 3. The first tool assemblies 2 are mounted on the frame 1, and each pair of adjacent cleaning grooves along the length of the tab is provided with a first tool assembly 2. The second tool assemblies 3 are mounted on the frame 1, and along the length of the tab, the second tool assemblies 3 are positioned between two adjacent first tool assemblies 2 and correspond to the area between two adjacent cleaning grooves.
[0026] During the slitting process of the electrode tabs, an additional set of cutting tools is added to cut away the cleaning grooves on the tabs. This method of cutting the tabs eliminates the need for punch cuts, improving their mechanical strength. Furthermore, the simultaneous cutting of the tabs by two tools reduces subsequent cutting steps and simplifies the process.
[0027] In this application, the distance between the second tool assembly 3 and one of the first tool assemblies 2 is greater than the distance between the second tool assembly 3 and the other of the first tool assemblies 2.
[0028] In this application, each first tool assembly 2 is located on the same side of each second tool assembly 3.
[0029] Specifically, during the cutting process of the electrode ear roll by the first cutting tool assembly 2 and the second cutting tool assembly 3, two sub-electrode ear rolls are formed. One roll is the finished product to be cut, and the other roll is the ear material. In order to improve the utilization efficiency of the electrode ear roll and reduce waste consumption, the distance between the second cutting tool assembly 3 and one of the first cutting tool assemblies 2 needs to be greater than the distance between the second cutting tool assembly 3 and the other of the first cutting tool assemblies 2. This cutting will form two sub-electrode ear rolls of different sizes. The larger sub-electrode ear roll is the finished product, and the smaller sub-electrode ear roll is waste.
[0030] In this application, the distance between adjacent first tool assembly 2 and second tool assembly 3 is the same.
[0031] Specifically, by setting the distance between the first tool assembly 2 and the second tool assembly 3 to the same distance, the cut electrode rolls can maintain the same specifications, avoiding the situation where the electrode rolls are the same size after cutting, and avoiding secondary cutting of the electrode rolls.
[0032] In this application, the first tool assembly 2 includes: a first upper blade and a first lower blade. The first upper blade is disposed on the upper part of the frame 1; the first lower blade is disposed on the lower part of the frame 1. There is a material passage gap between the first upper blade and the first lower blade. Along the height direction of the frame 1, at least one of the first upper blade and the first lower blade is movably connected to the frame 1.
[0033] Specifically, before the electrode roll is placed into the electrode cutter, there is a gap between the first upper blade and the first lower blade to allow the end of the electrode roll to pass through. After the electrode roll passes through the cutter, the first lower blade or the first upper blade moves to reduce the gap between the first upper blade and the first lower blade, and the electrode roll is cut together by the first upper blade and the first lower blade.
[0034] To facilitate the movable connection between the first upper blade or the first lower blade and the frame 1, the frame 1 is provided with a sliding groove. The first upper blade or the first lower blade is placed in the sliding groove and slides within it. Simultaneously, a sliding frame can be installed inside the frame 1. The sliding frame is fixedly connected to multiple first upper blades or multiple first lower blades, enabling the multiple first upper blades or multiple first lower blades to slide together, increasing the synchronicity of the movement of the first upper blades or the first lower blades and improving the cutting effect of the electrode loops.
[0035] In this application, the second tool assembly 3 includes a second upper blade disposed on the upper part of the frame 1; and a second lower blade disposed on the lower part of the frame 1. There is a material passage gap between the second upper blade and the second lower blade. Along the height direction of the frame 1, at least one of the second upper blade and the second lower blade is movably connected to the frame 1.
[0036] Specifically, before the electrode roll is placed into the electrode cutter, there is a gap between the second upper blade and the second lower blade to allow the end of the electrode roll to pass through. After the electrode roll passes through the cutter, the second lower blade or the second upper blade moves to reduce the gap between the second upper blade and the second lower blade, and the electrode roll is cut by the second upper blade and the second lower blade together.
[0037] To facilitate the movable connection between the second upper or lower blade and the frame 1, a sliding groove is provided on the frame 1. The second upper or lower blade is positioned within the sliding groove and slides within it. Simultaneously, a sliding frame can be installed within the frame 1. This sliding frame is fixedly connected to multiple second upper or lower blades, enabling them to slide together, increasing the synchronicity of the movement of the second upper or lower blades and improving the cutting effect on the electrode loops.
[0038] In one embodiment, the first upper blade and the second upper blade are of the same length, and the first lower blade and the second lower blade are equidistant. The first upper blade and the second upper blade are movably connected to the frame 1, and multiple first upper blades and multiple second upper blades are fixed on the same sliding frame. When the sliding frame slides, it can synchronously drive the first upper blades and the second upper blades to move.
[0039] In this application, the positions of the first tool assembly 2 and / or the second tool assembly 3 are adjustable along the width direction of the frame 1.
[0040] When the distance between the tab grooves on the tab rolls to be cut is different, the positions of the first cutter assembly 2 and the second cutter assembly 3 need to be adjusted so that the adjusted positions of the first cutter assembly 2 and the second cutter assembly 3 are adapted to the positions of the tab grooves on the new tab rolls to be cut. The adjustable positions of the first cutter assembly 2 and the second cutter assembly increase the flexibility of the tab cutter, allowing for the cutting of different styles of tab rolls.
[0041] In this application, the first tool assembly 2 and / or the second tool assembly 3 include a first mounting structure, and a plurality of second mounting structures are provided at intervals on the frame 1 along the length direction of the frame 1, wherein the first mounting structure can be selectively matched with the second mounting structure.
[0042] In this application, there are a first mounting structure and a second mounting structure, one of which is a protrusion and the other is a slot.
[0043] Specifically, the interaction between the protrusion and the slot facilitates the adjustment of the position of the second cutter in the first cutter assembly 2, thereby making it easier to cut different types of tab rolls.
[0044] In this application, the first tool assembly 2 and / or the second tool assembly 3 are slidably connected to the frame 1 along the width direction of the frame 1.
[0045] By sliding the first tool assembly 2 and the second tool assembly 3 to the frame 1, it is easy to adapt to the changes in the distance between the first tool assembly 2 and the second tool assembly 3, the first tool and the first tool assembly 2, and the second tool assembly 3 and the second tool assembly 3, thereby adapting to different specifications of pole lugs.
[0046] When errors occur during use, the impact of errors on cutting can be reduced by adjusting the positions of the first tool assembly 2 and the second tool assembly 3.
[0047] To facilitate the sliding connection between the first tool assembly 2 and the second tool assembly 3 and the frame 1, the frame 1 is provided with corresponding sliding grooves, and the first tool assembly 2 and the second tool assembly 3 are provided with sliders that are adapted to the sliding grooves to facilitate the sliding of the first tool assembly 2 and the second tool assembly 3.
[0048] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:
[0049] 1. During the slitting process of the electrode tabs, an additional set of cutting tools is added to cut off the cleaning grooves on the electrode tabs. This method of cutting the electrode tabs eliminates the need for punch cuts, improving their mechanical strength. The cutting process involves two tools cutting the electrode tabs simultaneously, reducing subsequent cutting steps and simplifying the process.
[0050] 2. By setting the distance between the first tool assembly 2 and the second tool assembly 3 to the same distance, the cut electrode rolls can maintain the same specifications, avoiding the size of the electrode rolls after cutting and avoiding secondary cutting of the electrode rolls.
[0051] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0052] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0053] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0054] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A tab cutter for tab cutting, characterized by, The cleaning groove is arranged on the tab in a length direction of the tab, and the tab cutter for cutting the tab comprises: a frame body (1); a plurality of first cutter assemblies (2) arranged on the frame body (1), and each of the first cutter assemblies (2) is arranged corresponding to two adjacent cleaning grooves in the length direction of the tab; a second cutter assembly (3) arranged on the frame body (1) and corresponding to a region between two adjacent cleaning grooves in the length direction of the tab.
2. The tab cutter for tab cutting according to claim 1, characterized by, The distance between the second cutter assembly (3) and one of the first cutter assemblies (2) is greater than the distance between the second cutter assembly (3) and the other of the first cutter assemblies (2).
3. The tab cutter for tab cutting according to claim 2, characterized by, Each of the first cutter assemblies (2) is located on the same side of the second cutter assembly (3).
4. The tab cutter for tab cutting according to claim 3, characterized by, The distance between the adjacent first cutter assembly (2) and the second cutter assembly (3) is the same.
5. The tab cutter for tab cutting according to claim 1, characterized by, The first cutter assembly (2) comprises: a first upper blade arranged on the upper part of the frame body (1); a first lower blade arranged on the lower part of the frame body (1), and there is a material passing gap between the first upper blade and the first lower blade, at least one of the first upper blade and the first lower blade is movably connected with the frame body (1) in the height direction of the frame body (1).
6. The tab cutter for tab cutting according to claim 1, characterized by, The second cutter assembly (3) comprises: a second upper blade arranged on the upper part of the frame body (1); a second lower blade arranged on the lower part of the frame body (1), and there is a material passing gap between the second upper blade and the second lower blade, at least one of the second upper blade and the second lower blade is movably connected with the frame body (1) in the height direction of the frame body (1).
7. The tab cutter for tab cutting according to claim 1, characterized by, The position of the first cutter assembly (2) and / or the second cutter assembly (3) is adjustable in the width direction of the frame body (1).
8. The tab cutter for tab cutting according to claim 7, characterized by, The first cutter assembly (2) and / or the second cutter assembly (3) comprises a first mounting structure, and a plurality of second mounting structures are arranged on the frame body (1) in the length direction of the frame body (1), and the first mounting structure is selectively matched with the second mounting structure.
9. The tab cutter for tab cutting according to claim 8, characterized by, One of the first mounting structure and the second mounting structure is a protrusion, and the other is a slot.
10. The tab cutter for tab cutting according to claim 7, characterized by, The first cutter assembly (2) and / or the second cutter assembly (3) is slidably connected with the frame body (1) in the width direction of the frame body (1).