Punching and cutting device

Abstract

A punching and cutting device related to one embodiment of the present application includes an upper die including a first cutting portion for processing an electrode tab on a first uncoated portion of a coated electrode and a second cutting portion disposed at a predetermined interval apart from the first cutting portion in a width direction of the coated electrode so as to process a second uncoated portion of the coated electrode, and a first length adjusting portion for connecting the first cutting portion and the second cutting portion and moving the first cutting portion and / or the second cutting portion in the width direction of the coated electrode so as to adjust the interval.

Description

TECHNICAL FIELD

[0001] The present invention relates to a punch cutting device, and more particularly, to a punch cutting device for machining electrode tabs on a coated electrode using a die.

[0002] This application claims the priority benefit of Korean Patent Application No. 10-2024-0102391, filed on August 1, 2024, and Korean Patent Application No. 10-2025-0103728, filed on July 30, 2025, the entire disclosures of which are incorporated herein by reference. BACKGROUND

[0003] Secondary batteries are classified into a button-type battery, a cylindrical battery, a rectangular battery, and a pouch-type battery according to the shape of a battery case.

[0004] In a secondary battery, an electrode assembly installed inside a battery case is a rechargeable power generation element composed of a laminated structure of an electrode and a separator.

[0005] In addition, the electrode assembly can be classified into a jelly-roll type in which a separator is interposed between sheet-shaped positive and negative electrodes coated with an active material, a stack type in which a plurality of positive and negative electrodes are laminated in a state in which a separator is interposed between the positive and negative electrodes, and a stack / folding type in which a stacked unit cell is wound with a long separation film.

[0006] Figure 1 And Figure 2 is a diagram for explaining a cutting process of machining electrode tabs on a coated electrode.

[0007] Referring to Figure 1 , a coated electrode (10) is formed by laminating a coating layer (12) onto a substrate (11). The coating layer (12) can include an electrode active material such as a negative electrode active material or a positive electrode active material.

[0008] Referring to Figure 2 , the coated electrode (10) includes a coated portion (13) and an uncoated portion (14 and / or 15). The coated portion (13) is a portion in which the coating layer (12) is laminated to the substrate (11). The uncoated portion (14 and / or 15) is a portion in which the coating layer (12) is not laminated to the substrate (11). The uncoated portion (14 and / or 15) can be disposed on both sides or one side of the coated portion (13).

[0009] The coated electrode (10) can be cut into a shape consistent with the specifications (electrode length) of the secondary battery using a cutting die (30). The cutting process performed on the cutting die (30) can mean, as the word "cutting" implies, a process of cutting off unnecessary portions of the first uncoated portion (14) and the second uncoated portion (15) to form an electrode tab (16), a process of forming an electrode tab (16) and cutting the coated electrode (10) to a predetermined length to form an electrode plate (20), or a process of cutting the entire first uncoated portion (14) and the second uncoated portion (15) on one side. The coated portion (13) of the coated electrode (10) can be cut into a coated portion (13) of the electrode plate (20) with a predetermined size.

[0010] The cutting die (30) is used to process electrode tabs (16) on the uncoated portion (14) of the coated electrode (10) supplied to the upper side of the die (33) by moving the punch (31) up and down toward the die (33).

[0011] However, in conventional cutting dies (30), there is a problem that if the specifications of the electrode plate (20) to be processed (for example, the size of the electrode plate (20)) change, not only must the punch (31) and the die (33) be remanufactured, but all the components supporting the punch (31) and the die (33) must also be remanufactured.

[0012] In other words, depending on the specifications of the secondary battery, the dimensions such as the electrode length (A) of the electrode plate (20) and the tab width (B) and tab length (C) of the electrode tabs (16) arranged on the electrode plate (20) may vary. Therefore, a new cutting mold (30) must be manufactured according to the changes in the dimensions of the electrode plate (20).

[0013] When the mold is manufactured according to the specifications of the electrode plate (20), space is required for storing the cutting mold (30), and the mold manufacturing cost increases. Summary of the Invention

[0014] Technical issues

[0015] The present invention aims to provide a device that can process coated electrode cuts into various specifications of stamping cuts using a cut die with adjustable size.

[0016] Furthermore, the present invention aims to provide a stamping cutting device capable of adjusting the size of the die according to the electrode length, tab width, and tab length of the electrode plate.

[0017] Technical solution

[0018] To address the aforementioned problems, a stamping and cutting device related to an example of the present invention includes an upper die and a first electrode length adjusting section. The stamping and cutting device includes an upper die comprising a first cutting section and a second cutting section. The first cutting section is arranged to process electrode tabs on a first uncoated portion of a coated electrode. The second cutting section is configured to be spaced apart from the first cutting section by a predetermined interval along the width direction of the coated electrode to process a second uncoated portion of the coated electrode. Furthermore, the stamping and cutting device includes a first electrode length adjusting section connected to the first and second cutting sections, and arranged to move at least one of the first and second cutting sections along the width direction of the coated electrode to adjust the interval.

[0019] As an example, the coating electrode has a first uncoated portion and a second uncoated portion positioned on both sides along the width direction. Furthermore, the coating electrode has a coated portion between the first and second uncoated portions.

[0020] The first electrode length adjustment unit can be arranged to adjust the interval between the first cutting portion and the second cutting portion based on the length of the coating portion along the width direction of the coating electrode. As an example, if the length of the coating portion increases, the first electrode length adjustment unit can increase the interval between the first cutting portion and the second cutting portion, and if the length of the coating portion decreases, the interval between the first cutting portion and the second cutting portion can decrease.

[0021] The first electrode length adjustment unit may include a linear drive unit for linearly moving at least one of the first cutting unit and the second cutting unit along the width direction of the coated electrode.

[0022] The first cutting section may include a first cutting block and a second cutting block arranged parallel to each other along the length direction of the coated electrode. The first cutting block and the second cutting block may be arranged adjacent to each other sequentially along the length direction of the coated electrode. Furthermore, the tab width of the electrode tab may be determined by the interval between the first cutting block and the second cutting block.

[0023] The first cutting section may include a tab width adjustment section connecting the first and second punching blocks, and is arranged to adjust the interval between the first and second punching blocks in the length direction of the coated electrode.

[0024] In addition, the tab width adjustment unit may include a linear drive unit capable of linearly moving the second punching block relative to the first punching block.

[0025] As an example, during the punching operation of the upper die, the multiple punching blocks of the first cutting section can be arranged to process the first cutting surface that cuts along the boundary between the first uncoated section and the coated section, as well as the electrode tabs that have the first uncoated section and extend from the coated section.

[0026] Multiple punching blocks may include a first punching block and a third punching block arranged parallel to each other along the width direction of the coated electrode. In this case, the tab length of the electrode tab can be determined by the interval between the first punching block and the third punching block.

[0027] In addition, the first cutting section may include a first tab length adjustment section, which connects the first punching block and the third punching block and is arranged to adjust the interval between the first punching block and the third punching block in the width direction of the coated electrode.

[0028] In addition, the first tab length adjustment unit may include a linear drive unit capable of linearly moving the third punching block relative to the first punching block.

[0029] Furthermore, the plurality of punching blocks may include a second punching block and a fourth punching block arranged parallel to each other along the width direction of the coated electrode. In this case, the second punching block and the first punching block may be arranged parallel to each other along the length direction of the coated electrode, and the fourth punching block and the third punching block may be arranged parallel to each other along the length direction of the coated electrode. Furthermore, the tab length of the electrode tab may be determined by the interval between the second punching block and the fourth punching block. Additionally, the first cutting section may include a second tab length adjusting section connected to the second punching block and the fourth punching block, and arranged to adjust the interval between the second punching block and the fourth punching block in the width direction of the coated electrode.

[0030] In addition, the second electrode length adjustment unit may include a linear drive unit capable of linearly moving the fourth punching block relative to the second punching block.

[0031] Furthermore, the second cutting section may include a reference punching block for processing the second uncoated portion. For example, the reference punching block may cut the second uncoated portion along the boundary between the second uncoated portion and the coated portion during the punching operation of the upper die to process a second cutting surface on the coated electrode.

[0032] Additionally, a punching cutter associated with one example of the invention may include a lower die arranged to guide the punching operation of an upper die. The lower die may be resiliently connected to the upper die and is thus arranged to guide the punching operation of the upper die.

[0033] The lower mold may include: a first guide portion, on which a portion of a first uncoated portion of a coated electrode is disposed, the first guide portion being configured to face the first cutting portion; a second guide portion, on which a portion of a second uncoated portion of a coated electrode is disposed, the second guide portion being configured to face the second cutting portion; and a second electrode length adjusting portion, which connects the first guide portion and the second guide portion in the width direction of the coated electrode, and the second electrode length adjusting portion is arranged to adjust the interval between the first guide portion and the second guide portion according to the interval between the first cutting portion and the second cutting portion.

[0034] Furthermore, the second electrode length adjustment unit may include a linear drive unit for linearly moving at least one of the first guide unit and the second guide unit along the width direction of the coated electrode.

[0035] Furthermore, the second electrode length adjusting unit can be arranged to adjust the positions of the first guide and the second guide, such that the first guide is coaxially positioned with the first cutting part and the second guide is coaxially positioned with the second cutting part. Therefore, the second electrode length adjusting unit can be arranged to operate in conjunction with the first electrode length adjusting unit provided in the upper mold.

[0036] Additionally, the first guide portion may include a plurality of guide blocks, which are spaced apart from each other, such that a plurality of punching blocks of the first cutting portion are inserted during the punching operation, and the plurality of guide blocks may be arranged such that the spacing between adjacent guide blocks can be adjusted.

[0037] As an example, the first guiding component may include multiple guide blocks having guide slots into which multiple punching blocks (first punching block to fourth punching block) of the first cutting section can be inserted, and the multiple guide blocks are configured to be spaced apart from each other. The multiple guide blocks form guide slots, the size of which can be adjusted according to the spacing between the multiple guide blocks.

[0038] The plurality of guide blocks may include a first guide block and a second guide block arranged sequentially along the length direction of the coated electrode. Furthermore, the first guide portion may include a first guide adjustment portion connecting the first guide block and the second guide block, and is arranged to adjust the spacing between the first guide block and the second guide block along the length direction of the coated electrode.

[0039] In addition, the first guide adjustment unit may include a linear drive unit for linearly moving at least one of the first guide block and the second guide block along the length direction of the coated electrode.

[0040] Furthermore, the first guide adjustment unit can adjust the interval between the first guide block and the second guide block based on the tab width of the electrode tab.

[0041] The first guide portion can be arranged such that two guide blocks arranged adjacent to each other in the width direction of the coated electrode can be spaced apart along the width direction of the coated electrode.

[0042] As an example, the plurality of guide blocks may include a first guide block, a third guide block arranged parallel to the first guide block in the width direction of the coated electrode, a second guide block arranged parallel to the first guide block in the length direction of the coated electrode, and a fourth guide block arranged parallel to the second guide block in the width direction of the coated electrode.

[0043] In addition, the first guide portion may include: a second guide adjustment portion, which connects the first guide block and the third guide block and is arranged to adjust the interval between the first guide block and the third guide block in the width direction of the coated electrode; and a third guide adjustment portion, which connects the second guide block and the fourth guide block and is arranged to adjust the interval between the second guide block and the second guide block in the width direction of the coated electrode.

[0044] As an example, the second guide adjustment unit can be connected to a first guide block and a third guide block that are adjacent to each other in the width direction of the coated electrode, and can be arranged to adjust the interval between the first guide block and the third guide block in the width direction of the coated electrode based on the tab length of the electrode tab.

[0045] In addition, the second guide adjustment unit may include various types of linear drive units capable of linearly moving the third guide block relative to the first guide block.

[0046] Furthermore, the third guide adjustment unit can be connected to the second guide block and the fourth guide block that are adjacent to each other in the width direction of the coated electrode, and can be arranged to adjust the interval between the second guide block and the second guide block in the width direction of the coated electrode based on the tab length of the electrode tab.

[0047] In addition, the third guide adjustment unit may include various types of linear drive units capable of linearly moving the fourth guide block relative to the second guide block.

[0048] The second guiding component may include a reference guiding block disposed on the second uncoated portion side in the length direction of the coated electrode, and the reference guiding block may be arranged such that the reference punching block of the second cutting portion can be inserted during the punching operation of the upper mold.

[0049] Beneficial effects

[0050] As described above, the punching cut device associated with one example of the present invention has the following effects.

[0051] Because the dimensions of the processing area within the mold can be adjusted according to the specifications of the electrode plate (e.g., electrode length, tab width, and tab length), the present invention can produce electrode plates with various specifications.

[0052] Furthermore, since no separate cutting mold is required for each electrode plate specification, the production cost and time of new cutting molds can be reduced.

[0053] Furthermore, since no separate cutting mold is required for each electrode plate specification, there is no need for separate storage space for unused cutting molds. Attached Figure Description

[0054] Figure 1 and Figure 2 This diagram illustrates the slit process used to form electrode tabs on coated electrodes.

[0055] Figure 3 A plan view of a punching cut device mounted on the travel path of a coated electrode, according to an example of the invention, is shown schematically.

[0056] Figure 4 A side cross-sectional view of a stamping notch device along the width direction of the coated electrode is schematically illustrated in one example of the present invention.

[0057] Figure 5 The structure of a first electrode length adjustment section according to an example of the present invention is illustrated schematically.

[0058] Figure 6 This is a plan view of an upper mold according to an example of the present invention, which schematically illustrates the state in which the first electrode length adjustment section, the electrode tab width adjustment section, the first electrode tab length adjustment section, and the second electrode tab length adjustment section are connected to the first cutting section and the second cutting section.

[0059] Figure 7 The dimensional adjustment states of the first and second cutting portions in a stamping and cutting device according to the specifications of the electrode plate are schematically illustrated in one example of the present invention.

[0060] Figure 7 (a) schematically illustrates the dimensional adjustment state between the shearing elements of the first and second stamping portions of a stamping and cutting apparatus according to the specifications of the electrode plate in one example of the invention, and Figure 7 (b) A schematic diagram of the electrode substrate indicating the shearing processing area is shown.

[0061] Figure 8This is a plan view of a lower mold according to an example of the present invention, which schematically illustrates the state in which the second electrode length adjustment part and a plurality of mold adjustment parts are connected to the first mold and the second mold.

[0062] Figure 9 The punching operation state of a punching and cutting device according to an example of the present invention is illustrated schematically. Detailed Implementation

[0063] In the following description, a stamping cutter device related to an example of the present invention will be described with reference to the accompanying drawings.

[0064] Figure 3 A plan view of a punching notch device mounted on the travel path of a coated electrode, according to an example of the invention, is schematically illustrated. Figure 4 A side cross-sectional view of a stamping notch device along the width direction of the coated electrode is schematically illustrated in one example of the present invention.

[0065] Reference Figure 3 and Figure 4 A stamping cutter (100) associated with an example of the present invention includes an upper die (110) including a first cutting portion (130) and a second cutting portion (160). The first cutting portion (130) is arranged to process electrode tabs (16) on a first uncoated portion (14) of a coated electrode (10). The second cutting portion (160) is configured to be spaced apart from the first cutting portion (130) in the width direction (Y) of the coated electrode (10) and is arranged to cut a second uncoated portion (15) of the coated electrode (10).

[0066] The stamping cut device (100) may include a first electrode length adjustment unit (210) which connects a first cutting part (130) and a second cutting part (160) in the width direction (Y) of the coating electrode (10) in the internal space of the upper mold (110) and is arranged to adjust the interval between the first cutting part (130) and the second cutting part (160) based on the length of the coating part (13) of the coating electrode (10).

[0067] Reference Figure 3 The upper mold (110) may include a first cutting section (130), a second cutting section (160), and a first electrode length adjustment section (210). The upper mold (110) may move (lower) in a direction closer to the coated electrode (10) and may be arranged to punch the first uncoated portion (14) and the second uncoated portion (15) of the coated electrode (10) through the first cutting section (130) and the second cutting section (160), respectively.

[0068] The stamping notch device (100) is designed to cut the electrode plates (20, see below) of the secondary battery. Figure 2 The processing dimensions of the coated electrode (10) are adjusted by changing the specifications of the coated electrode (10) to process electrode tabs (16) on the coated electrode (10). According to an example of the invention, the punching and cutting device (100) can process electrode tabs (16) on the coated electrode (10) by punching the coated electrode (10), and can be arranged to cut some or all areas of the first uncoated portion (14) and the second uncoated portion (15).

[0069] In this specification, the direction of travel (MD) of the coated electrode (10) may be parallel to the length direction (X) of the coated electrode (10). The width direction (Y) of the coated electrode (10) may be orthogonal to the length direction (X) of the coated electrode (10).

[0070] The punching and cutting device (100) can perform the punching operation when the coated electrode (10) is stopped.

[0071] Typically, when the electrode plates used in a secondary battery (20, see...) Figure 2 When the specifications of the electrode plate (20, see) change, for example, when the specifications of the electrode plate (20, see) change, Figure 2 When any of the dimensions of the electrode length (A+C), tab width (B), and tab length (C) of the electrode changes, new upper and lower molds must be manufactured to process the electrode tabs (16) on the coated electrode (10) according to the changed specifications.

[0072] Alternatively, when the electrode plate (20, see...) Figure 2 When the specifications of the die change, the stamping cutting device (100) according to an example of the present invention can adjust the size of the processing area of ​​the upper die (110) and the lower die (120).

[0073] Reference Figure 3 and Figure 4 The stamping and cutting device (100) may include an upper die (110) and a lower die (120) arranged to process electrode tabs (16) on the coated electrode (10) by stamping the coated electrode (10).

[0074] The upper mold (110) may include a first cutting part (130), a second cutting part (160), a first electrode length adjustment part (210), and a punching drive part (115).

[0075] Reference Figure 4The punching drive unit (115) can be mounted on the upper die (110), and as an example, the punching drive unit (115) can be mounted on the outer surface of the upper die (110). The punching drive unit (115) is a device for moving the upper die (110) in a height direction (Z) perpendicular to the width direction (Y) and length direction (X) of the coated electrode (10), respectively. As an example, the punching drive unit (115) may include a reciprocating cylinder (not shown).

[0076] Furthermore, the first cutting section (130), the second cutting section (160), and the first electrode length adjustment section (210) can be installed in the internal space of the upper mold (110).

[0077] The first cutting portion (130) can be arranged to process electrode tabs (16) on the first uncoated portion (14) of the coated electrode (10).

[0078] The second cutting portion (160) can be configured to be spaced apart from the first cutting portion (130) in the width direction (Y) of the coated electrode (10), and can be arranged to cut the second uncoated portion (15) of the coated electrode (10).

[0079] Figure 5 The structure of a first electrode length adjustment section according to an example of the present invention is schematically illustrated. Figure 6 This is a plan view of an upper mold according to an example of the present invention, schematically illustrating the connection of the first electrode length adjustment section, the electrode tab width adjustment section, the first electrode tab length adjustment section, and the second electrode tab length adjustment section to the first cutting section and the second cutting section. Figure 7 The dimensional adjustment states of the first and second cutting portions in a stamping and cutting device according to the specifications of the electrode plate are schematically illustrated in one example of the present invention.

[0080] Reference Figure 6 The first electrode length adjustment unit (210) can adjust the electrode length interval (D10) between the first cutting part (130) and the second cutting part (160) based on the length (A) of the coating part (13) of the coating electrode (10) input to the controller (300).

[0081] Furthermore, the length (A) of the coated portion (13) can be the length between the boundary (13a) of the first uncoated portion (14) and the coated portion (13) and the boundary (13a) of the second uncoated portion (15) and the coated portion (13). The length (A) of the coated portion (13) can also be the length along the width direction (Y) of the coated electrode (10).

[0082] The first electrode length adjustment unit (210) may include various types of linear drive units capable of linearly moving the first cutting unit (130).

[0083] As an example, such as Figures 3 to 6 As shown, the first electrode length adjustment unit (210) may include a first electrode length motor (211), a first electrode length chain (212), and a first electrode length track (215). The first electrode length motor (211) may be mounted on the second cutting unit (160). The first electrode length motor (211) may be a servo motor. The first electrode length motor (211) may be controlled by a controller (300).

[0084] The first electrode length chain (212) can be connected to the first electrode length motor (211). The first electrode length chain (212) can be mounted on the first cutting section (130).

[0085] The first electrode length chain (212) can move the first cutting part (130) in the width direction (Y) of the coated electrode (10) based on the second cutting part (160). That is, the first electrode length chain (212) can move the first cutting part (130) closer to or further away from the second cutting part (160) along the driving direction of the first electrode length motor (211).

[0086] The first electrode length track (215) can be mounted on the upper mold (110) parallel to the width direction (Y) of the coated electrode (10). The first cutting part (130) can be movably mounted on the first electrode length track (215). The first cutting part (130) can be connected to the first electrode length chain (212) and can move along the first electrode length track (215) in the moving direction of the first electrode length chain (212).

[0087] Reference Figure 5 The first electrode length chain (212) may include a first support (212a) and multiple links (212b).

[0088] The first electrode length chain (212) can be arranged by connecting two adjacent chain links (212b) to be bent at a predetermined angle by a pin.

[0089] The first support (212a) is an end support that can be used to fix the first electrode length chain (212) to the first cutting portion (130). The first cutting portion (130) can be movably mounted along the first electrode length track (215) in the width direction (Y) of the coated electrode (10). The first cutting portion (130) can move along the first electrode length track (215) in the direction of movement of the first electrode length chain (212).

[0090] The end (212c) of the first electrode length chain (212) can be mounted on the first electrode length motor (211). The first electrode length chain (212) can move the first cutting part (130) closer to or further away from the second cutting part (160) along the driving direction of the first electrode length motor (211).

[0091] As another example, the first electrode length adjustment section (210) may include an LM (linear motion) guide (not shown) that is linearly connected to the first cutting section (130) and the second cutting section (160).

[0092] The LM guide (not shown) may include a track (not shown) and a moving block (not shown) mounted to be able to move back and forth along the track.

[0093] A track (not shown) can be mounted to the first housing (131) parallel to the width direction (Y) of the coated electrode (10). A movable block (not shown) can be mounted to the first cutting section (130) and can be arranged to move along the track closer to or further away from the second cutting section (160).

[0094] As another example, the first electrode length adjustment unit (210) may include a reciprocating cylinder (not shown). In the reciprocating cylinder (not shown), the cylinder body (not shown) may be mounted on the second cutting part (160), and the piston (not shown) movably mounted on the cylinder body may be mounted on the first cutting part (130), and the interval between the first cutting part (130) and the second cutting part (160) may be adjusted by adjusting the length of the piston exposed outside the cylinder body.

[0095] Reference Figures 3 to 6 The second cutting portion (160) may be disposed on the side of the second uncoated portion (15). The second cutting portion (160) may include a second housing (161) and a reference punching block (162).

[0096] The reference punching block (162) can be mounted on the second housing (161) to expose the lower part of the second housing (161).

[0097] As an example, the reference punching block (162) can be arranged to process a second cutting surface (18) on the coated electrode (10) by cutting the second uncoated portion (15) along the boundary between the second uncoated portion (15) and the coated portion (13) during the punching operation of the upper die (110).

[0098] The reference punching block (162) is spaced apart from the plurality of punching blocks (132 to 135) of the first cutting portion (130), which will be described below, in the width direction (Y) of the coated electrode (10).

[0099] Reference Figures 3 to 6 The first cutting part (130) may include a first housing (131), a plurality of punching blocks (132 to 135), a tab width adjustment part (230), a first tab length adjustment part (240), and a second tab length adjustment part (250).

[0100] Multiple punching blocks (132 to 135) can be arranged in parallel along the length (X) and / or width (X) direction of the coated electrode (10).

[0101] Multiple punching blocks (132 to 135) can be arranged to process the first cutting surface (17) that cuts along the boundary between the first uncoated portion (14) and the coated portion (13) and the electrode tab (16) extending from the coated portion (13) during the punching operation of the upper die (110).

[0102] In this example, for ease of explanation, the multiple punching blocks (132 to 135) are referred to as the first punching block (132), the second punching block (133), the third punching block (134), and the fourth punching block (135) respectively, according to their positions.

[0103] The first cutting section (130) can be arranged such that two punching blocks (132, 133) that are adjacent to each other in the length direction (X) of the coated electrode (10) can be spaced apart in the length direction (X) of the coated electrode (10) based on the tab width (B) of the electrode tab (16).

[0104] The first cutting section (130) can be arranged such that two punching blocks () adjacent to each other in the width direction (Y) of the coated electrode (10) can be spaced apart in the width direction (Y) of the coated electrode (10) based on the tab length (C) of the electrode tab (16).

[0105] The first punching block (132) and the second punching block (133) can be connected at adjustable intervals in the length direction (X) of the coated electrode (10) via the tab width adjustment part (230).

[0106] The first punching block (132) and the third punching block (134) can be connected at adjustable intervals in the width direction (Y) of the coated electrode (10) via the first tab length adjustment part (240).

[0107] After adjusting the gap between the first punching block (132) and the third punching block (134) to the preset tab length (C), the coated electrode (10) can be cut.

[0108] The second punching block (133) and the fourth punching block (135) can be connected at an adjustable interval in the width direction (Y) of the coated electrode (10) via the second tab length adjustment part (250).

[0109] After adjusting the gap between the second punching block (133) and the fourth punching block (135) to the preset tab length (C), the coated electrode (10) can be cut.

[0110] In this example, the second punching block (133) to the fourth punching block (135) can be mounted on the first housing (131) so that the position of the first punching block (132) can be adjusted in at least one of the length direction (X) and / or the width direction (Y) of the coated electrode (10).

[0111] The first outer shell (131) can be arranged around the first punching block (132) to the second punching block (133), the tab width adjustment part (230), the first tab length adjustment part (240), and the second tab length adjustment part (250).

[0112] The first outer shell (131) can be movably mounted in the width direction (Y) of the coated electrode (10) within the internal space of the upper mold (110) via the first electrode length adjustment part (210).

[0113] The first punching block (132) to the fourth punching block (135) can be installed on the first housing (131) to expose the lower part of the first housing (131).

[0114] Reference Figure 7 (a) and Figure 7 (b) The first punching block (132) and the second punching block (133) can be spaced apart from each other by the tab width (B) of the electrode tab (16) in the length direction (X) of the coated electrode (10), so they can be arranged to process the electrode tab (16) and the first cutting surface (17) on the first uncoated portion (14) of the coated electrode (10).

[0115] The first punching block (132) and the third punching block (134) can be arranged to cut one side region (14a) of the electrode tab (16) processed on the first uncoated part (14).

[0116] The first punching block (132) can cut a portion (14a) of the first uncoated portion (14), such that the first cutting surface (17) and the edge of the electrode tab (16) orthogonal to the first cutting surface (17) are arranged.

[0117] The third punching block (134) can cut the first uncoated portion (14) in the length direction (X) of the coated electrode (10) to process the end of the electrode tab (16).

[0118] Reference Figure 7 (a) and 7(b), the second punching block (133) and the fourth punching block (135) can be arranged to cut the area (14b) on the other side of the electrode tab (16) processed on the first uncoated part (14).

[0119] The second punching block (133) can cut the other side region (14b) of the first uncoated portion (14), so that the first cutting surface (17) and the edge of the electrode tab (16) orthogonal to the first cutting surface (17) are arranged.

[0120] In addition, the fourth punching block (135) can cut the first uncoated portion (14) in the length direction (X) of the coated electrode (10) to process the end of the electrode tab (16).

[0121] During the punching operation of the upper die (110), the first punching block (132) and the second punching block (133) can retain a portion of the first uncoated part (14) in the space between the first punching block (132) and the second punching block (133) (i.e., the area corresponding to the electrode tab (16)), and can cut the area (14a, 14b) where the first punching block (132) and the second punching block (133) contact the first uncoated part (14).

[0122] Reference Figure 3 The electrode tab (16) may be a portion of the first uncoated portion (14) arranged between the first punching block (132) and the second punching block (133). The first cutting surface (17) is the boundary between the first uncoated portion (14) and the coated portion (13), and the first cutting surface (17) is the portion cut by the first punching block (132) and the second punching block (133).

[0123] Reference Figure 6 and Figure 7The tab width adjustment unit (230) can be arranged to adjust the first interval (D11) between the first punching block (132) and the second punching block (133) in the length direction (X) of the coated electrode (10) based on the tab width of the electrode tab (16). The tab width adjustment unit (230) can adjust the first interval (D11) between the first punching block (132) and the second punching block (133) to the tab width (B) of the electrode tab (16). The first interval (D11) can be the tab width (B).

[0124] The tab width adjustment part (230) can be connected to the first punch block (132) and the second punch block (133) that are adjacent to each other in the length direction (X) of the coated electrode (10).

[0125] The tab width adjustment unit (230) may include various types of linear drive units capable of linearly moving the second punching block relative to the first punching block (132).

[0126] As an example, the tab width adjustment unit (230) may include a first motor (231) and a first chain (232). The first motor (231) may be mounted on a first punching block (132). The first motor (231) may be connected to the first chain (232) and provide driving force to the first chain (232). The first motor (231) may be a servo motor. The first motor (231) may be controlled by a controller (300).

[0127] Furthermore, the first chain (232) can be mounted on the second punching block (133). When the first motor (231) is driven, the first chain (232) can move the second punching block (133) along the length direction (X) of the coated electrode (10). The first chain (232) can move the second punching block (133) closer to or further away from the first punching block (132) along the driving direction of the first motor (231).

[0128] As another example, the tab width adjustment unit (230) may include an LM guide (not shown). As another example, the tab width adjustment unit (230) may include a reciprocating cylinder (not shown). The tab width adjustment unit (230) may adjust the first gap (D11) between the first punching block (132) and the second punching block (133) in the same manner as the first electrode length adjustment unit (210).

[0129] Reference Figure 6 and Figure 7 The first electrode length adjustment part (240) can be connected to the first punching block (132) and the third punching block (134) that are adjacent to each other in the width direction (Y) of the coated electrode (10).

[0130] The first tab length adjustment unit (240) can be arranged to adjust the second interval (D12) between the first punching block (132) and the third punching block (134) in the width direction (Y) of the coated electrode (10) based on the tab length (C) of the electrode tab (16).

[0131] The first tab length adjustment unit (240) can adjust the interval between the first punching block (132) and the third punching block (134) to the tab length (C) of the electrode tab (16).

[0132] The first tab length adjustment unit (240) may include various types of linear drive units capable of linearly moving the third punching block (134) relative to the first punching block (132).

[0133] The first pole length adjustment section (240) may include a second motor (241) and a second chain (242).

[0134] As an example, a second motor (241) can be mounted on a first punching block (132). The second motor (241) may include a servo motor. In a second chain (242), one end can be connected to the second motor (241), and the other end can be mounted on a third punching block. The second chain (242) can connect the first punching block (132) and the third punching block (134) in the width direction (Y) of the coated electrode (10).

[0135] When the second motor (241) is driven, the second chain (242) can move the third punch block (134) in the width direction (Y) of the coated electrode (10) based on the first punch block (132).

[0136] The second chain (242) can move the third punch block (134) closer to or further away from the first punch block (132) along the driving direction of the second motor (241).

[0137] As another example, the first electrode length adjustment unit (240) may include an LM guide. As another example, the first electrode length adjustment unit (240) may include a reciprocating cylinder (not shown).

[0138] The first electrode length adjustment unit (240) can adjust the second interval (D12) between the first punching block (132) and the third punching block (134) in the same manner as the first electrode length adjustment unit (210).

[0139] Reference Figure 6 and Figure 7 The second electrode length adjustment part (250) can be connected to the second punching block (133) and the fourth punching block (135) that are adjacent to each other in the width direction (Y) of the coated electrode (10).

[0140] The second tab length adjustment unit (250) can be arranged to adjust the interval between the second punching block (133) and the fourth punching block (135) in the width direction (Y) of the coated electrode (10) based on the tab length (C) of the electrode tab (16). The second tab length adjustment unit (250) can adjust the second interval (D12) between the second punching block (133) and the fourth punching block (135) to the tab length (C) of the electrode tab (16).

[0141] The second tab length adjustment unit (250) may include various types of linear drive units capable of linearly moving the fourth punching block (135) relative to the second punching block (133).

[0142] The second tab length adjustment part (250) may include a third motor (251) and a third chain (252). The third motor (251) may be mounted on the second punching block (133). In the third chain (252), one end may be connected to the third motor (251), and the other end may be mounted on the fourth punching block (135).

[0143] When the third motor (251) is driven, the third chain (252) can move the fourth punch block (135) relative to the second punch block (133) in the width direction (Y) of the coated electrode (10).

[0144] The third chain (252) can move the fourth punch block (135) closer to or further away from the second punch block (133) along the driving direction of the third motor (251).

[0145] As another example, the second electrode length adjustment section (250) may include an LM guide.

[0146] As another example, the second electrode length adjustment unit (250) may include a reciprocating cylinder (not shown).

[0147] The second electrode length adjustment unit (250) can adjust the second interval (D12) between the second punching block (133) and the fourth punching block (135) in the same manner as the first electrode length adjustment unit (210).

[0148] In this example, when the electrode plate (20, see...) Figure 2 When the length (C) of the tab changes, the interval between the first punching block (132) and the third punching block (134) and the interval between the second punching block (133) and the fourth punching block (135) can be adjusted by the first tab length adjustment unit (240) and the second tab length adjustment unit (250).

[0149] ReferenceFigure 4 The lower mold (120) can be arranged as a group with the upper mold (110). The upper mold (110) and the lower mold (120) can be spaced apart in the height direction (Z) so that the coated electrode (10) can pass through them.

[0150] As an example, the lower die (120) can be elastically connected to the upper die (110), and thus can be arranged to guide the punching operation of the upper die (110). A coated electrode (10) can be mounted on the lower die (120), and as an example, the lower die (120) can be arranged to support a first uncoated portion (14) and a second uncoated portion (15) of the coated electrode (10), respectively. As an example, the lower die (120) can be arranged such that the punching blocks (132 to 135) of the upper die (110) can each be inserted.

[0151] Figure 8 This is a plan view of a lower mold (120) according to an example of the present invention, which schematically illustrates the state in which the second electrode length adjustment section and the first guide adjustment section to the third guide adjustment section are connected to the first guide section and the second guide section, and Figure 9 The punching operation state of a punching and cutting device according to an example of the present invention is illustrated schematically.

[0152] Reference Figure 8 The lower mold (120) may include a first guide (170), a second guide (180), and a second electrode length adjustment part (220).

[0153] The first guide portion (170) may include a plurality of guide blocks (172 to 175) forming a guide groove, and a plurality of punching blocks (132 to 135) of the first cutting portion (130) can be inserted into the guide groove. The plurality of guide blocks (172 to 175) may be configured to be spaced apart from each other, and the guide groove may be formed in the space between the plurality of guide blocks (172 to 175).

[0154] Multiple guide blocks (172 to 175) can be arranged such that the slot spacing (length along the length of the coated electrode) of the first guide slot (177) is adjustable. In this specification, slot spacing means the interval between two adjacent guide blocks.

[0155] The first guide (170) can be arranged such that two guide blocks (172, 173) adjacent to each other in the length direction (X) of the coated electrode (10) can be spaced apart in the length direction (X) of the coated electrode (10) based on the tab width (B) of the electrode tab (16).

[0156] The first guide (170) can be arranged such that two guide blocks (172 and 174, 173 and 175) adjacent to each other in the width direction (Y) of the coated electrode (10) can be spaced apart in the width direction (Y) of the coated electrode (10) based on the tab length (C) of the electrode tab (16).

[0157] The first guide portion (170) can be arranged such that a portion of the first uncoated portion (14) including the coated electrode (10) can be placed, and can be configured to face the first cut portion (130).

[0158] The first guide (170) can be positioned coaxially with the first cutting part (130) in the height direction (Z).

[0159] The first guide section (170) may include a first guide housing (171) and a plurality of guide blocks (172 to 175).

[0160] The first guide portion (170) may have a first guide groove (177) into which the first punching block (132) to the fourth punching block (135) of the first cutting portion (130) can be inserted. The first guide portion (170) may be arranged such that the first groove spacing (D21) of the first guide groove (177) can be adjusted along the length direction (X) of the coated electrode (10).

[0161] As an example, multiple punching blocks (132 to 135) can all be inserted into a first guide slot (177) formed by multiple guide blocks (172 to 175) during the punching operation.

[0162] Multiple guide blocks (172 to 175) may include a first guide block (172) to a fourth guide block (175). The multiple guide blocks (172 to 175) may be configured to be spaced apart from each other along the circumferential direction of the first guide groove (177).

[0163] The first guide block (172) and the second guide block (173) can be arranged in a row parallel to each other along the length direction (X) of the coated electrode (10).

[0164] The first guide block (172) is designed to guide the entry of the first punching block (132). The first guide block (172) may be arranged to contact the first punching block (132) when the first punching block (132) is inserted into the first guide slot (177).

[0165] The second guide block (173) is designed to guide the entry of the second punching block (133). The second guide block (173) can be arranged to contact the second punching block (133) when the second punching block (133) is inserted into the first guide slot (177).

[0166] The third guide block (174) is designed to guide the entry of the third punching block (134). The third guide block (174) can be arranged to contact the third punching block (134) when the third punching block (134) is inserted into the first guide groove (177). The third guide block (174) can be configured to be adjacent to the first guide block (172) in the width direction (Y) of the coated electrode (10).

[0167] The fourth guide block (175) is designed to guide the entry of the fourth punching block (135). The fourth guide block (175) can be arranged to contact the fourth punching block (135) when the fourth punching block (135) is inserted into the first guide slot (177).

[0168] The fourth guide block (175) can be configured to be adjacent to the second guide block (173) in the width direction (Y) of the coated electrode (10). The fourth guide block (175) can be configured in the same row as the third guide block (174) in the length direction (X) of the coated electrode (10).

[0169] The second guide portion (180) can be arranged such that a portion of the coated electrode (10), including the second uncoated portion (15), can be placed therein, and can be configured to face the second cut portion (160).

[0170] The second guide (180) can be positioned coaxially with the second cutting part (160) in the height direction (Z).

[0171] Furthermore, the second guide portion (180) may include a second guide housing (181) and a reference guide block (182). The reference guide block (182) may be provided with a second guide groove (183), into which the reference punching block (162) of the second cutting portion (160) can be inserted.

[0172] During the punching operation of the upper mold (110), the reference punching block (162) of the second cutting part (160) can be inserted into the second guide groove (183) of the reference guide block (182).

[0173] The second electrode length adjustment part (220) can connect the first guide part (170) and the second guide part (180) in the width direction (Y) of the coated electrode (10).

[0174] The second electrode length adjustment unit (220) can be arranged to adjust the electrode length interval (D10) between the first guide (170) and the second guide (180) by moving the first guide (170) closer to or further away from the second guide (180) in the width direction (Y) of the coating electrode (10) based on the length of the coating part (13) of the coating electrode (10).

[0175] The second electrode length adjustment unit (220) can be linked with the first electrode length adjustment unit (210) provided in the upper mold (110). In addition, the second electrode length adjustment unit (220) can adjust the position of the first guide part (170) so that the first guide part (170) and the first cutting part (130) are positioned coaxially.

[0176] The second electrode length adjustment unit (220) can adjust the interval between the first guide (170) and the second guide (180) to the electrode length interval (D10) between the first cutting part (130) and the second cutting part (160).

[0177] The second electrode length adjustment unit (220) may include various types of linear drive units capable of linearly moving the first guide unit (170). The second electrode length adjustment unit (220) may move the first guide unit (170) in the width direction (Y) of the coated electrode (10) in the same manner as the first electrode length adjustment unit (210).

[0178] As an example, the second electrode length adjustment unit (220) may include a second electrode length motor (221), a second electrode length chain (222), and a second electrode length track (225).

[0179] The second electrode length motor (221) can be mounted on the second guide housing (181) of the second guide (180). The second electrode length chain (222) can be connected to the second electrode length motor (221). The second electrode length chain (222) can be mounted on the first guide housing (171) of the first guide (170).

[0180] The second electrode length track (225) can be mounted on the lower mold (120) parallel to the width direction (Y) of the coated electrode (10). The first guide (170) can be movably mounted on the second electrode length track (225). The first guide (170) can be connected to the second electrode length chain (212) and can move along the second electrode length track (225) in the direction of movement of the second electrode length chain (212).

[0181] When the second electrode length motor (221) is driven, the second electrode length chain (222) can move the first guide (170) in the width direction (Y) of the coated electrode (10). The second electrode length chain (222) can move the first guide (170) closer to or further away from the second guide (180) in the driving direction of the second electrode length motor (221).

[0182] As another example, the second electrode length adjustment unit (220) may include an LM guide or a reciprocating cylinder (not shown). The second electrode length adjustment unit (220) may adjust the interval between the first guide (170) and the second guide (180) in the same manner as the first electrode length adjustment unit (210).

[0183] The first guide adjustment part (260) can be connected to the first guide block (172) and the second guide block (173) that are adjacent to each other in the length direction (X) of the coated electrode (10).

[0184] The first guide adjustment part (260) can be arranged to adjust the first groove interval (D21) between the first guide block (172) and the second guide block (173) in the length direction (X) of the coated electrode (10) based on the tab width (B) of the electrode tab (16). That is, based on the interval between the first punching block (132) and the second punching block (133), the first groove interval (D21) between the first guide block (172) and the second guide block (173) can be adjusted so that the first punching block (132) and the second punching block (133) can be inserted during the punching operation.

[0185] The first guide adjustment section (260) can be linked with the tab width adjustment section (230) of the first cutting section (130).

[0186] The first guide adjustment unit (260) may include various types of linear drive units capable of linearly moving the second guide block (173) relative to the first guide block (172).

[0187] As an example, the first guide adjustment unit (260) may include a fourth motor (261) and a fourth chain (262). The fourth motor (261) may be mounted on the first guide block (172). The fourth chain (262) may be connected to the fourth motor (261). The fourth chain (262) may be mounted on the second guide block (173).

[0188] When the fourth motor (261) is driven, the fourth chain (262) can move the second guide block (173) relative to the first guide block (172) in the length direction (X) of the coated electrode (10). The fourth chain (262) can also move the first guide block (172) closer to or further away from the second guide block (173) in the driving direction of the fourth motor (261).

[0189] As another example, the first guide adjustment unit (260) may include an LM guide or a reciprocating cylinder (not shown). The first guide adjustment unit (260) may adjust the spacing between the first guide block (172) and the second guide block (173) in the same manner as the tab width adjustment unit (230).

[0190] The second guide adjustment section (270) can be connected to the first guide block (172) and the third guide block (174) that are adjacent to each other in the width direction (Y) of the coated electrode (10).

[0191] The second guide adjustment unit (270) can be arranged to adjust the second groove interval (D22) between the first guide block (172) and the third guide block (174) in the width direction (Y) of the coated electrode (10) based on the tab length (C) of the electrode tab (16). That is, based on the interval between the first punching block (132) and the third punching block (134), the second groove interval (D22) between the first guide block (172) and the third guide block (174) can be adjusted so that the first punching block (132) and the third punching block (134) can be inserted during the punching operation.

[0192] The second guide adjustment section (270) can be arranged to adjust the second groove spacing (D22) of the first guide groove (177) in the width direction (Y) of the coated electrode (10).

[0193] The second guide adjustment unit (270) can be linked with the first electrode length adjustment unit (240) to adjust the second slot interval (D22) between the first guide block (172) and the third guide block (174).

[0194] The second guide adjustment unit (270) may include various types of linear drive units capable of linearly moving the third guide block (174) relative to the first guide block (172).

[0195] As an example, the second guide adjustment unit (270) may include a fifth motor (271) and a fifth chain (272).

[0196] The fifth motor (271) can be mounted on the first guide block (172). The fifth chain (272) can be connected to the fifth motor (271). The fifth chain (272) can be mounted on the third guide block (174).

[0197] When the fifth motor (271) is driven, the fifth chain (272) can move the third guide block (174) in the width direction (Y) of the coated electrode (10) based on the first guide block (172).

[0198] As another example, the second guide adjustment unit (270) may include an LM guide (not shown) or a reciprocating cylinder (not shown).

[0199] The third guide adjustment section (280) can be connected to the second guide block (173) and the fourth guide block (175) that are adjacent to each other in the width direction (Y) of the coated electrode (10).

[0200] Similar to the second guide adjustment unit (270), the third guide adjustment unit (280) can be arranged to adjust the second slot spacing (D22) between the second guide block (173) and the second guide block (173) in the width direction (Y) of the coated electrode (10) based on the tab length (C) of the electrode tab (16).

[0201] The third guide adjustment section (280) can adjust the second groove spacing (D22) of the first guide groove (177) in the width direction (Y) of the coated electrode (10).

[0202] The third guide adjustment unit (280) can be linked with the second pole length adjustment unit (250) to adjust the second slot interval (D22) between the second guide block (173) and the fourth guide block (175).

[0203] The third guide adjustment unit (280) may include various types of linear drive units capable of linearly moving the fourth guide block (175) relative to the second guide block (173).

[0204] As an example, the third guide adjustment unit (280) may include a sixth motor (281) and a sixth chain (282).

[0205] The sixth motor (281) can be mounted on the second guide block (173). In the sixth chain (282), one end can be connected to the sixth motor (281), and the other end can be mounted on the fourth guide block (175).

[0206] When the sixth motor (281) is driven, the sixth chain (282) can move the fourth guide block (175) relative to the second guide block (173) in the width direction (Y) of the coated electrode (10).

[0207] The sixth chain (282) can move the second guide block (173) closer to or further away from the fourth guide block (175) in the driving direction of the sixth motor (281).

[0208] As another example, the third guide adjustment unit (280) may include an LM guide (not shown) or a reciprocating cylinder (not shown).

[0209] The controller (300) will be described below.

[0210] The controller (300) can individually control the first electrode length motor (211), the second electrode length motor (221), and the first motor (231) through the sixth motor (281). The controller (300) can also control the electrode plates (20, see...) Figure 2The electrode length, tab width (B), and tab length (C) of each motor are controlled by a PLC (Programmable Logic Controller).

[0211] As an example, the controller (300) can control the operation of the first electrode length motor (211) and the second electrode length motor (221) based on the length (A) of the coating portion (13) of the coating electrode (10).

[0212] In addition, the controller (300) can control the operation of the first motor (231) and the fourth motor (261) based on the tab width (B) of the coated electrode (10).

[0213] In addition, the controller (300) can control the operation of the second motor (241) and the third motor (251) based on the tab length (C) of the coated electrode (10).

[0214] The interval between the first punching block (132) and the third punching block (134) and the interval between the second punching block (133) and the fourth punching block (135) can be adjusted to be the same.

[0215] In addition, the controller (300) can be linked with the second motor (241) to control the operation of the fifth motor (271), and the controller (300) can be linked with the third motor (251) to control the operation of the sixth motor (281).

[0216] The controller (300) can press and operate the upper mold (110) when the coated electrode (10) stops moving.

[0217] Reference Figure 9 During the punching operation of the upper mold (110), the first cutting part (130) moves (descends) toward the first guide part (170) of the lower mold (120). Then, the first punching block (132) to the fourth punching block (135) of the first cutting part (130) can process the electrode tab (16) on the first uncoated part (14) by cutting the remaining part except the electrode tab (16) while being inserted into the first guide groove (177) of the first guide part (170).

[0218] Reference Figure 9 During the punching operation of the upper mold (110), the second cutting part (160) moves in a direction closer to the second guide part (180). The reference punching block (162) of the second cutting part (160) can cut the second uncoated part (15) in the coated electrode (10) while being inserted into the second guide groove (183) of the second guide part (180).

[0219] Preferred examples of the invention as described above have been disclosed for illustrative purposes, and those skilled in the art to which this invention pertains will be able to make various modifications, alterations, and additions within the spirit and scope of the invention, and such modifications, alterations, and additions should be considered to fall within the scope of the appended claims.

[0220] Industrial applicability

[0221] According to a stamping cutter associated with an example of the present invention, since the size of the processing area within the die can be adjusted according to the specifications of the electrode plate (e.g., electrode length, tab width, and tab length), electrode plates with various specifications can be produced.

Claims

1. A stamping and cutting device, the stamping and cutting device comprising: The upper mold includes a first cutting portion and a second cutting portion. The first cutting portion is arranged to process electrode tabs on a first uncoated portion of the coated electrode. The second cutting portion is configured to be spaced apart from the first cutting portion by a predetermined interval along the width direction of the coated electrode to process a second uncoated portion of the coated electrode. as well as A first electrode length adjustment section is connected to the first cutting section and the second cutting section, and the first electrode length adjustment section is arranged to move at least one of the first cutting section and the second cutting section along the width direction of the coated electrode to adjust the interval.

2. The punching and cutting device according to claim 1, wherein, The first electrode length adjustment section includes a linear drive section, which is used to move at least one of the first cutting section and the second cutting section linearly along the width direction of the coated electrode.

3. The punching and cutting device according to claim 1, wherein, The first cutting section includes a first cutting block and a second cutting block arranged parallel to each other along the length direction of the coated electrode. The width of the electrode tab is determined by the interval between the first punching block and the second punching block, and The first cutting section includes a tab width adjustment section, which connects the first punching block and the second punching block and is arranged to adjust the interval between the first punching block and the second punching block in the length direction of the coated electrode.

4. The punching and cutting device according to claim 3, wherein, The tab width adjustment unit includes a linear drive unit, which is capable of linearly moving the second punching block relative to the first punching block.

5. The punching and cutting device according to claim 1, wherein, The plurality of punching blocks includes a first punching block and a third punching block arranged parallel to each other along the width direction of the coated electrode. The length of the electrode tab is determined by the interval between the first punching block and the third punching block, and The first cutting section includes a first tab length adjustment section, which connects the first punching block and the third punching block and is arranged to adjust the interval between the first punching block and the third punching block in the width direction of the coated electrode.

6. The punching and cutting device according to claim 5, wherein, The first tab length adjustment unit includes a linear drive unit, which is capable of linearly moving the third punching block relative to the first punching block.

7. The punching and cutting device according to claim 5, wherein, The plurality of punching blocks includes a second punching block and a fourth punching block arranged parallel to each other along the width direction of the coated electrode. The second and first punching blocks are arranged parallel to each other along the length of the coated electrode, and the fourth and third punching blocks are also arranged parallel to each other along the length of the coated electrode. The length of the electrode tab is determined by the interval between the second punching block and the fourth punching block, and The first cutting section includes a second tab length adjustment section, which connects the second punching block and the fourth punching block and is arranged to adjust the interval between the second punching block and the fourth punching block in the width direction of the coated electrode.

8. The stamping notching device according to claim 1, wherein the stamping notching device comprises: The lower die is arranged to guide the punching operation of the upper die, wherein... The lower mold includes: a first guide portion, on which a portion of the first uncoated portion of the coated electrode is disposed, and the first guide portion is configured to face the first cutting portion; A second guide portion, including a portion of the second uncoated portion of the coated electrode, is disposed on the second guide portion, and the second guide portion is configured to face the second cut portion; and A second electrode length adjusting part is connected to the first guide part and the second guide part in the width direction of the coated electrode, and the second electrode length adjusting part is arranged to adjust the interval between the first guide part and the second guide part according to the interval between the first cut part and the second cut part.

9. The punching and cutting device according to claim 8, wherein, The second electrode length adjustment section includes a linear drive section, which is used to linearly move at least one of the first guide section and the second guide section along the width direction of the coated electrode.

10. The punching and cutting device according to claim 8, wherein, The second electrode length adjustment section is arranged to adjust the positions of the first guide section and the second guide section, such that the first guide section is coaxially positioned with the first cutting section, and the second guide section is coaxially positioned with the second cutting section.

11. The punching and cutting device according to claim 8, wherein, The first guide portion includes a plurality of guide blocks, which are spaced apart from each other, such that during the stamping operation, a plurality of punching blocks of the first cutting portion are inserted, and The plurality of guide blocks are arranged such that the spacing between adjacent guide blocks can be adjusted.

12. The punching and cutting device according to claim 11, wherein, The plurality of guide blocks include a first guide block and a second guide block arranged sequentially along the length direction of the coated electrode, and The first guide portion includes a first guide adjustment portion, which connects the first guide block and the second guide block and is arranged to adjust the interval between the first guide block and the second guide block in the length direction of the coated electrode.

13. The punching and cutting device according to claim 12, wherein, The first guide adjustment unit includes a linear drive unit, which is used to move at least one of the first guide block and the second guide block linearly along the length direction of the coated electrode.

14. The punching and cutting device according to claim 11, wherein, The first guide portion is arranged such that two guide blocks arranged adjacent to each other in the width direction of the coated electrode can adjust their spacing along the width direction of the coated electrode.

15. The punching and cutting device according to claim 14, wherein, The plurality of guide blocks include a first guide block, a third guide block arranged parallel to the first guide block in the width direction of the coated electrode, a second guide block arranged parallel to the first guide block in the length direction of the coated electrode, and a fourth guide block arranged parallel to the second guide block in the width direction of the coated electrode. The first guide portion includes a second guide adjustment portion and a third guide adjustment portion. The second guide adjustment portion is connected to the first guide block and the third guide block and is arranged to adjust the interval between the first guide block and the third guide block in the width direction of the coated electrode. The third guide adjustment portion is connected to the second guide block and the fourth guide block and is arranged to adjust the interval between the second guide block and the fourth guide block in the width direction of the coated electrode.

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