Tab bending device and tab processing apparatus
By designing a leveling and multiple bending mechanism for the tab bending device, the problem of controlling the flatness of the tab end was solved, thereby improving battery production quality and packaging reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-16
Smart Images
Figure CN224359199U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electrode processing, and in particular to an electrode bending device and electrode processing equipment. Background Technology
[0002] In the lithium battery industry, cell tab bending is a key manufacturing process in cell tab processing, which directly affects battery safety, energy density and production efficiency.
[0003] The main purpose of bending the tabs is to adapt to the battery structure design, improve battery performance, and optimize the manufacturing process.
[0004] In related technologies, the packaging methods of square / cylindrical / pouch batteries are different, and the tabs need to be bent to a specific angle to fit the internal space of the casing and avoid interference with the separator, electrode plates or other components.
[0005] However, current tab bending devices have difficulty controlling the flatness of the tab ends before bending the tabs, which may cause tab quality defects during bending and affect battery performance. Utility Model Content
[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a tab bending device that can control the flatness of the tab end, improve the tab bending effect, and thus improve the quality of battery cell production.
[0007] This utility model also proposes a tab processing equipment having the above-mentioned tab bending device.
[0008] The tab bending device according to a first aspect of the present invention includes:
[0009] The leveling mechanism includes an upper pressure block and a lower pressure block, which are brought together to limit the electrode tab before bending or to level the end of the electrode tab after bending.
[0010] The first bending mechanism is located on the horizontal side of the leveling mechanism opposite to the cell body, and includes a roller that rolls the end of the tab upward to bend the end of the tab upward.
[0011] The second bending mechanism is located on the horizontal side of the leveling mechanism near the cell body, and includes an upper bending block and a lower bending block. The upper bending block and the lower bending block are brought together to bend the tabs that have been bent upwards downwards.
[0012] The tab bending device according to the embodiment of this utility model has at least the following beneficial effects:
[0013] 1. This utility model, by setting a leveling mechanism, has an upper and lower pressure block that closes to limit the electrode tab before bending, which can pre-correct the flatness of the electrode tab, eliminate the bending stress concentration caused by uneven electrode tab, and reduce the risk of bending cracking. At the same time, the upper and lower pressure blocks limit the electrode tab, which can ensure that the middle section of the electrode tab will not bend with the end of the electrode tab when the roller bends the end of the electrode tab, thus ensuring the stability of the position of the middle section of the electrode tab.
[0014] 2. This utility model provides a first bending mechanism, which uses rollers to press the end of the electrode tab upwards to bend the end of the electrode tab upwards. The rolling contact reduces frictional damage to the surface of the electrode tab and achieves a smooth transition of the upward bending angle.
[0015] 3. This utility model provides a second bending mechanism, which uses an upper bending block and a lower bending block to perform a second downward bending on the tab that has already been bent upward at the end, forming a composite bending path. This adapts to the complex spatial layout of the battery casing and avoids interference with the separator and electrode sheets.
[0016] 4. This utility model ensures the consistency of the overall shape of the electrode tab after bending by having the leveling mechanism level the end of the electrode tab a second time after bending, thereby improving the reliability of subsequent packaging.
[0017] 5. This utility model uses rollers to press the end of the electrode tab, and works with a leveling mechanism and a second bending mechanism to complete the electrode tab bending, thereby controlling the flatness of the electrode tab end, improving the electrode tab bending effect and improving the quality of battery cell production.
[0018] According to some embodiments of the present invention, the first bending mechanism further includes a first driving component, which is used to drive the roller to move horizontally closer to and further away from the leveling mechanism and to lift it up and down.
[0019] The advantages of this invention are: by setting a first driving component, which is used to drive the roller to move horizontally closer to and away from the leveling mechanism and to lift it, it can be understood that, on the one hand, the first driving component controls the horizontal movement and lifting of the roller, so as to achieve precise positioning and pressure adjustment of the roller on the electrode tab, and avoid excessive rolling pressure that causes deformation of the electrode tab; on the other hand, the first driving component controls the horizontal movement capability of the roller so that the roller can be adapted to electrode tabs of different sizes, thereby improving the versatility of the device.
[0020] According to some embodiments of the present invention, the first driving component includes a first driving member and a second driving member. The first driving member is used to drive the roller to move horizontally closer to and away from the leveling mechanism, and the second driving member is used to drive the roller to move up and down.
[0021] The advantages of this invention are that by making the first driving component include a first driving member and a second driving member, the first driving member is used to drive the roller to move horizontally closer to and away from the leveling mechanism, and the second driving member is used to drive the roller to move up and down. Thus, the first driving member and the second driving member are controlled separately, simplifying motion trajectory planning and improving the consistency of bending angle.
[0022] According to some embodiments of the present invention, the leveling mechanism further includes a third driving member and a fourth driving member, wherein the third driving member is used to drive the upper pressure block to rise and fall, and the fourth driving member is used to drive the lower pressure block to rise and fall.
[0023] The advantage of this invention is that the leveling mechanism also includes a third driving component and a fourth driving component. The third driving component is used to drive the upper pressure block to rise and fall, and the fourth driving component is used to drive the lower pressure block to rise and fall. It can be understood that by independently driving the upper and lower pressure blocks to rise and fall, the pressing gap can be adjusted for different thickness tabs, preventing the tab surface from being indented or the leveling from failing due to uneven pressure.
[0024] According to some embodiments of this utility model, it further includes an upright first guide rail and a second guide rail, wherein the first guide rail is used to guide the lifting and lowering of the upper pressure block, and the second guide rail is used to guide the lifting and lowering of the lower pressure block.
[0025] The advantages of this invention are: by setting up a vertical first guide rail and a second guide rail, the first guide rail is used to guide the lifting and lowering of the upper pressure block, and the second guide rail is used to guide the lifting and lowering of the lower pressure block. Thus, the first guide rail and the second guide rail provide vertical guidance for the upper pressure block and the lower pressure block respectively, ensuring that there is no horizontal deviation when the upper pressure block and the lower pressure block are closed, maintaining the consistency of the direction of the leveling force, and at the same time reducing the impact of mechanical vibration on the leveling accuracy and improving the yield rate.
[0026] According to some embodiments of the present invention, the bottom of the upper bending block has a first abutting surface and a second abutting surface forming a height difference, and the top of the lower bending block has a third abutting surface and a fourth abutting surface forming a corresponding height difference. When the upper bending block and the lower bending block are closed, the first abutting surface and the third abutting surface cooperate to clamp the electrode tab, and the second abutting surface and the fourth abutting surface cooperate to clamp the electrode tab, so that the upper bending block and the lower bending block bend the electrode tab into two segments with a height difference.
[0027] The advantages of this invention are: by having the bottom of the upper bending block have a first and second abutment surfaces forming a height difference, and the top of the lower bending block have a third and fourth abutment surfaces forming a corresponding height difference, when the upper and lower bending blocks are closed, the first and third abutment surfaces cooperate to clamp the tab, and the second and fourth abutment surfaces cooperate to clamp the tab, so that the upper and lower bending blocks bend the tab into two segments with a height difference. It can be understood that the design of the height difference abutment surfaces makes the tab bend in two segments, forming a stepped structure, which further optimizes the utilization rate of the stacking space of the tab inside the battery casing. At the same time, the segmented bending reduces the risk of material fatigue caused by excessive bending angle in a single bend.
[0028] According to some embodiments of the present invention, the second bending mechanism further includes a fifth driving member and a sixth driving member, wherein the fifth driving member is used to drive the upper bending block to rise and fall, and the sixth driving member is used to drive the lower bending block to rise and fall.
[0029] The advantage of this invention is that by including a fifth driving member and a sixth driving member in the second bending mechanism, the fifth driving member is used to drive the upper bending block to rise and fall, and the sixth driving member is used to drive the lower bending block to rise and fall. Thus, the upper bending block and the lower bending block are driven independently, which can precisely control the closing speed, pressure and position, and avoid the tabs from being misaligned or twisted during the bending process.
[0030] According to some embodiments of the present invention, a vertical third guide rail is also included, which is used to guide the lifting and lowering of the upper bending block and the lower bending block.
[0031] The advantage of this invention is that by setting a vertical third guide rail, which guides the lifting and lowering of the upper and lower bending blocks, the third guide rail ensures that the upper and lower bending blocks are strictly aligned when they are closed, thus avoiding the offset of the tab bending line due to misalignment.
[0032] According to some embodiments of the present invention, a cell pressing block is also included, which is used to press against the upper surface of the cell to fix the cell.
[0033] The advantages of this invention are: the use of a cell pressing block to press against the upper surface of the cell to fix the cell, thereby fixing the cell body and preventing deviation of the tab bending position caused by cell displacement during bending. At the same time, it reduces the impact of external vibration on processing accuracy, making it particularly suitable for high-speed continuous production scenarios.
[0034] According to a second aspect of the present invention, the electrode processing equipment includes the electrode bending device described in the first aspect of the present invention.
[0035] The tab processing equipment according to the embodiments of this utility model has at least the following beneficial effects:
[0036] 1. This utility model incorporates a leveling mechanism in the electrode tab bending device. The upper and lower pressure blocks of the leveling mechanism close together to limit the electrode tab before bending, which can pre-correct the flatness of the electrode tab, eliminate bending stress concentration caused by uneven electrode tab, and reduce the risk of bending cracks. At the same time, the upper and lower pressure blocks limit the electrode tab, which can ensure that the middle section of the electrode tab will not bend with the end of the electrode tab when the roller bends the end of the electrode tab, thus ensuring the stability of the position of the middle section of the electrode tab.
[0037] 2. This utility model provides a first bending mechanism in the electrode tab bending device. The first bending mechanism uses rollers to press the end of the electrode tab upward to bend the end of the electrode tab upward. The rolling contact reduces frictional damage to the surface of the electrode tab and achieves a smooth transition of the upward bending angle.
[0038] 3. This utility model provides a second bending mechanism in the tab bending device. The second bending mechanism uses the upper bending block and the lower bending block to perform a second downward bending on the tab end that has been bent upward, forming a composite bending path. This adapts to the complex spatial layout of the battery casing and avoids interference with the separator and electrode sheets.
[0039] 4. This utility model ensures the consistency of the overall shape of the electrode tab after bending by having the leveling mechanism level the end of the electrode tab a second time after bending, thereby improving the reliability of subsequent packaging.
[0040] 5. This utility model uses rollers to press the end of the electrode tab, and works with a leveling mechanism and a second bending mechanism to complete the electrode tab bending, thereby controlling the flatness of the electrode tab end, improving the electrode tab bending effect and improving the quality of battery cell production.
[0041] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0042] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0043] Figure 1 This is a schematic diagram of the electrode tab bending device according to an embodiment of the present utility model;
[0044] Figure 2 for Figure 1 A structural schematic diagram from another perspective is shown;
[0045] Figure 3 for Figure 1 Partial side view shown;
[0046] Figure 4 for Figure 1 The enlarged view of point A is shown.
[0047] Reference numerals: 100-Upper pressure block, 110-Lower pressure block, 120-Roller, 130-Upper bending block, 140-Lower bending block, 150-First drive assembly, 160-First drive component, 170-Second drive component, 180-Third drive component, 190-Fourth drive component, 200-First guide rail, 210-Second guide rail, 220-First abutting surface, 230-Second abutting surface, 240-Third abutting surface, 250-Fourth abutting surface, 260-Fifth drive component, 270-Sixth drive component, 280-Third guide rail, 290-Cell pressure block. Detailed Implementation
[0048] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0049] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0050] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.
[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0052] The electrode bending device and electrode processing equipment according to embodiments of the present invention are described below with reference to the accompanying drawings.
[0053] This utility model aims to provide embodiments of a tab bending device and a tab processing equipment.
[0054] In this embodiment, the electrode processing equipment mainly includes an electrode bending device.
[0055] Reference Figure 1 and Figure 2 The tab bending device of this utility model includes a leveling mechanism, a first bending mechanism, and a second bending mechanism.
[0056] Reference Figure 3 The leveling mechanism includes an upper pressure block 100 and a lower pressure block 110. The upper pressure block 100 and the lower pressure block 110 are brought together to limit the electrode tab before bending or to level the end of the electrode tab after bending.
[0057] In this embodiment, a leveling mechanism is set up. The upper pressure block 100 and the lower pressure block 110 of the leveling mechanism close together to limit the electrode tab before bending. This can pre-correct the flatness of the electrode tab, eliminate the bending stress concentration caused by uneven electrode tab, and reduce the risk of bending cracking. At the same time, the upper pressure block 100 and the lower pressure block 110 limit the electrode tab, which can ensure that the middle section of the electrode tab will not bend with the end of the electrode tab when the roller 120 bends the end of the electrode tab, thus ensuring the stability of the position of the middle section of the electrode tab.
[0058] In addition, this embodiment ensures the consistency of the overall shape of the electrode after bending by having the leveling mechanism level the end of the electrode a second time after the electrode is bent, thereby improving the reliability of subsequent packaging.
[0059] It should be explained that before bending the electrode tab, the upper pressure block 100 and the lower pressure block 110 are joined at the position of the electrode tab before bending, so that the upper pressure block 100 and the lower pressure block 110 can clamp and limit the electrode tab before bending. After bending the electrode tab, the upper pressure block 100 and the lower pressure block 110 are joined at the end position of the electrode tab after bending, so that the upper pressure block 100 and the lower pressure block 110 can flatten the end of the electrode tab after bending.
[0060] It needs to be explained that when the upper pressure block 100 and the lower pressure block 110 press down on the electrode before bending, the part of the battery cell electrode extending out of the upper pressure block 100 and the lower pressure block 110 and away from the battery cell is in the shape of a "I".
[0061] In some specific embodiments, the leveling mechanism further includes a third drive member 180 and a fourth drive member 190, wherein the third drive member 180 is used to drive the upper pressure block 100 to rise and fall, and the fourth drive member 190 is used to drive the lower pressure block 110 to rise and fall.
[0062] Understandably, the independent lifting and lowering of the upper pressure block 100 and the lower pressure block 110 can adjust the pressing gap for tabs of different thicknesses, preventing indentation or flattening failure on the tab surface due to uneven pressure.
[0063] Specifically, the third drive component 180 and the fourth drive component 190 can be configured as a combination of a cylinder, a hydraulic cylinder, or a motor and a lead screw.
[0064] In some specific embodiments, a first guide rail 200 and a second guide rail 210 are also included. The first guide rail 200 is used to guide the lifting and lowering of the upper pressure block 100, and the second guide rail 210 is used to guide the lifting and lowering of the lower pressure block 110. Thus, the first guide rail 200 and the second guide rail 210 provide vertical guidance for the upper pressure block 100 and the lower pressure block 110, respectively, ensuring that there is no horizontal offset when the upper pressure block 100 and the lower pressure block 110 are closed, maintaining the consistency of the direction of the leveling force, and at the same time reducing the impact of mechanical vibration on the leveling accuracy and improving the yield rate.
[0065] The first bending mechanism is located on the horizontal side of the leveling mechanism opposite to the cell body. The first bending mechanism includes a roller 120, which rolls the end of the tab upward to bend the end of the tab upward.
[0066] In this embodiment, a first bending mechanism is provided. The first bending mechanism uses a roller 120 to roll the end of the electrode tab upward to bend the end of the electrode tab upward. The rolling contact reduces frictional damage to the surface of the electrode tab and achieves a smooth transition of the upward bending angle.
[0067] Understandably, after the leveling mechanism clamps and limits the tab before bending, the roller 120 first performs roll bending on the end of the tab, which can eliminate the flatness deviation of the end of the tab in the first step of the tab bending and avoid the flatness deviation of the end of the tab before bending affecting the subsequent bending steps.
[0068] In some specific embodiments, the first bending mechanism further includes a first drive assembly 150, which is used to drive the roller 120 to move horizontally toward and away from the leveling mechanism and to lift it up and down.
[0069] Understandably, on the one hand, the first drive assembly 150 controls the horizontal movement and lifting of the roller 120, enabling the roller 120 to accurately position and adjust the pressure of the tab, thus avoiding excessive rolling and deformation of the tab. On the other hand, the first drive assembly 150 controls the horizontal movement of the roller 120, allowing the roller 120 to be adapted to tabs of different sizes, thus improving the versatility of the device.
[0070] Specifically, the first drive assembly 150 includes a first drive member 160 and a second drive member 170. The first drive member 160 is used to drive the roller 120 to move horizontally closer to and away from the leveling mechanism, and the second drive member 170 is used to drive the roller 120 to move up and down. Thus, the first drive member 160 and the second drive member 170 are controlled separately, which simplifies motion trajectory planning and improves the consistency of bending angle.
[0071] Specifically, the first drive component 160 and the second drive component 170 can be configured as a cylinder, a hydraulic cylinder, or a combination of a motor and a lead screw.
[0072] The second bending mechanism is located on the horizontal side of the leveling mechanism near the cell body. The second bending mechanism includes an upper bending block 130 and a lower bending block 140. The upper bending block 130 and the lower bending block 140 are brought together to bend the tabs after the ends are bent upwards downwards.
[0073] In this embodiment, a second bending mechanism is provided. The second bending mechanism uses the upper bending block 130 and the lower bending block 140 to perform a second downward bending on the electrode tab that has been bent upward at the end, forming a composite bending path. This adapts to the complex spatial layout of the battery casing and avoids interference with the separator and electrode sheets.
[0074] Reference Figure 4 In some specific embodiments, the bottom of the upper bending block 130 has a first abutting surface 220 and a second abutting surface 230 forming a height difference, and the top of the lower bending block 140 has a third abutting surface 240 and a fourth abutting surface 250 forming a corresponding height difference. When the upper bending block 130 and the lower bending block 140 are closed, the first abutting surface 220 and the third abutting surface 240 cooperate to clamp the electrode tab, and the second abutting surface 230 and the fourth abutting surface 250 cooperate to clamp the electrode tab, so that the upper bending block 130 and the lower bending block 140 bend the electrode tab into two segments with a height difference.
[0075] Understandably, the height difference contact surface design causes the tabs to be bent in two sections, forming a stepped structure, which further optimizes the utilization of the stacking space of the tabs inside the battery casing. At the same time, the segmented bending reduces the risk of material fatigue caused by excessive bending angle in a single operation.
[0076] Furthermore, the bottom of the upper bending block 130 can be provided with a first inclined surface, the bottom end of the first inclined surface is connected to the first abutting surface 220, and the top end of the first inclined surface is connected to the second abutting surface 230. The top of the lower bending block 140 can be provided with a second inclined surface, the second inclined surface is inclined at the same angle as the first inclined surface, the bottom end of the second inclined surface is connected to the third abutting surface 240, and the top end of the second inclined surface is connected to the fourth abutting surface 250.
[0077] Understandably, the first and second inclined surfaces are aligned at equal angles. When the upper bending block 130 and the lower bending block 140 are closed, the electrode lug slides along the inclined surface and gradually deforms. This avoids the instantaneous bending impact caused by the traditional right-angle contact surface, reduces material stress concentration at the electrode lug bending point, and lowers the risk of cracks or breakage.
[0078] In some specific embodiments, the first abutting surface 220 is the lowest end face of the upper bending block 130, and the fourth abutting surface 250 is the highest end face of the lower bending block 140. When the upper pressing block 100 and the lower pressing block 110 close together to clamp and fix the unbent electrode tab, the upper bending block 130 and the lower bending block 140 can move closer to each other synchronously, so that the first abutting surface 220 abuts against the top surface of the electrode tab and the fourth abutting surface 250 abuts against the bottom surface of the electrode tab, so that the electrode tab is in the shape of "I", thereby making the unbent electrode tab flatter.
[0079] In some specific embodiments, the second bending mechanism further includes a fifth driving member 260 and a sixth driving member 270. The fifth driving member 260 is used to drive the upper bending block 130 to rise and fall, and the sixth driving member 270 is used to drive the lower bending block 140 to rise and fall. Thus, the upper bending block 130 and the lower bending block 140 are driven independently, which can precisely control the closing speed, pressure and position, and avoid the tabs from being misaligned or twisted during the bending process.
[0080] Specifically, the fifth drive component 260 and the sixth drive component 270 can be configured as a cylinder, a hydraulic cylinder, or a combination of a motor and a lead screw.
[0081] In some specific embodiments, a vertical third guide rail 280 is also included. The third guide rail 280 is used to guide the lifting and lowering of the upper bending block 130 and the lower bending block 140. Thus, the third guide rail 280 ensures that the upper bending block 130 and the lower bending block 140 are strictly aligned when they are closed, avoiding the offset of the tab bending line due to misalignment.
[0082] In some specific embodiments, two symmetrical leveling mechanisms can be set up, and two corresponding bending mechanisms can be set up to bend the two tabs of the battery cell at the same time, thereby improving space utilization.
[0083] In some specific embodiments, a cell pressing block 290 is also included. The cell pressing block 290 is used to press against the upper surface of the cell to fix the cell. Thus, the cell pressing block 290 fixes the cell body and prevents the electrode bending position deviation caused by cell displacement during bending. At the same time, it reduces the impact of external vibration on processing accuracy, which is especially suitable for high-speed continuous production scenarios.
[0084] Furthermore, it also includes a seventh drive unit, which is used to drive the cell pressing block 290 to rise and fall.
[0085] Specifically, the seventh drive component can be configured as a cylinder, hydraulic cylinder, or a combination of a motor and a lead screw.
[0086] In some specific embodiments, a support component is also included for supporting the battery cell.
[0087] In this embodiment, the end of the electrode is pressed by roller 120, and the electrode bending is completed in conjunction with the leveling mechanism and the second bending mechanism. This enables control over the flatness of the end of the electrode, improves the electrode bending effect, and enhances the quality of battery cell production.
[0088] The operation flow of the tab bending device in this embodiment is as follows:
[0089] First, the battery cell tab is horizontally inserted into the bending position. The battery cell pressing block 290 presses down on the upper surface of the battery cell. The upper pressing block 100 and the lower pressing block 110 close together to clamp and press down on the tab. At the same time, the upper bending block 130 and the lower bending block 140 approach each other. The upper bending block 130 presses down on the tab only on its first contact surface 220, and the lower bending block 140 presses down on the tab only on its fourth contact surface 250, so that the tab remains in a straight line shape.
[0090] Secondly, roller 120 is brought horizontally close to the tab, and then the end of the tab is rolled upward, causing the end of the tab to curl upward.
[0091] Then, the upper pressure block 100, lower pressure block 110, upper bending block 130, lower bending block 140, and roller 120 all loosen the electrode tabs, and the ends of the electrode tabs droop slightly at a certain angle under the action of gravity.
[0092] Finally, the upper bending block 130 and the lower bending block 140 are fully closed to press and bend the tab. Then, the upper pressing block 100 and the lower pressing block 110 are closed again to clamp the end of the tab and flatten it, thus completing the tab bending.
[0093] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0094] The terms "first," "second," "third," "fourth," etc. (if applicable) 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 described herein can be implemented in a sequence other than that illustrated or described herein.
[0095] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
[0096] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.
[0097] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0098] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A tab bending device, characterized in that, include: The leveling mechanism includes an upper pressure block (100) and a lower pressure block (110), which close together to limit the electrode tab before bending or to level the end of the electrode tab after bending. The first bending mechanism is located on the horizontal side of the leveling mechanism away from the cell body, and includes a roller (120). The roller (120) rolls upward to press the end of the tab to bend the end of the tab upward. The second bending mechanism is located on the horizontal side of the leveling mechanism near the cell body, and includes an upper bending block (130) and a lower bending block (140). The upper bending block (130) and the lower bending block (140) are brought together to bend the tabs that have been bent upwards downwards.
2. The electrode bending device according to claim 1, characterized in that, The first bending mechanism further includes a first drive assembly (150) for driving the roller (120) to move horizontally toward and away from the leveling mechanism and to move up and down.
3. The electrode bending device according to claim 2, characterized in that, The first drive assembly (150) includes a first drive member (160) and a second drive member (170). The first drive member (160) is used to drive the roller (120) to move horizontally closer to and away from the leveling mechanism, and the second drive member (170) is used to drive the roller (120) to move up and down.
4. The electrode tab bending device according to claim 1, characterized in that, The leveling mechanism further includes a third driving member (180) and a fourth driving member (190), the third driving member (180) being used to drive the upper pressure block (100) to rise and fall, and the fourth driving member (190) being used to drive the lower pressure block (110) to rise and fall.
5. The electrode bending device according to claim 1, characterized in that, It also includes a first guide rail (200) and a second guide rail (210) that are erected. The first guide rail (200) is used to guide the lifting and lowering of the upper pressure block (100), and the second guide rail (210) is used to guide the lifting and lowering of the lower pressure block (110).
6. The electrode tab bending device according to claim 1, characterized in that, The bottom of the upper bending block (130) has a first abutting surface (220) and a second abutting surface (230) forming a height difference, and the top of the lower bending block (140) has a third abutting surface (240) and a fourth abutting surface (250) forming a corresponding height difference. When the upper bending block (130) and the lower bending block (140) are closed, the first abutting surface (220) and the third abutting surface (240) cooperate to clamp the electrode tab, and the second abutting surface (230) and the fourth abutting surface (250) cooperate to clamp the electrode tab, so that the upper bending block (130) and the lower bending block (140) bend the electrode tab into two segments with a height difference.
7. The electrode tab bending device according to claim 1, characterized in that, The second bending mechanism further includes a fifth driving member (260) and a sixth driving member (270), the fifth driving member (260) being used to drive the upper bending block (130) to rise and fall, and the sixth driving member (270) being used to drive the lower bending block (140) to rise and fall.
8. The electrode bending device according to claim 1, characterized in that, It also includes an upright third guide rail (280) for guiding the lifting and lowering of the upper bending block (130) and the lower bending block (140).
9. The electrode bending device according to claim 1, characterized in that, It also includes a cell pressing block (290) for pressing against the upper surface of the cell to fix the cell.
10. A tab processing equipment, characterized in that, Includes the tab bending device according to any one of claims 1 to 9.