Secondary battery electrode cutting device

KR1020260117375APending Publication Date: 2026-07-29YU JIN TECH
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Patent Information

Application Number
KR1020250009236
Authority / Receiving Office
KR · KR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-07-29

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Abstract

The disclosed secondary battery electrode cutting device comprises: a cutting module having an upper plate installed in an upper holder, a lower plate installed in a lower plate holder, and an adjustment means for adjusting the clearance and perpendicularity between the upper plate and the lower plate; a cutting drive unit that operates the upper plate to be raised and lowered toward the lower plate so that the electrode sheet is cut; and a cutting byproduct removal unit that sucks and discharges cutting byproducts from the electrode sheet when the electrode sheet is cut; wherein the adjustment means comprises an upper plate holder support unit that supports the upper plate holder; clearance adjustment units and perpendicularity adjustment units installed in the upper plate holder support unit that elastically press and tilt the upper plate holder to adjust the clearance and perpendicularity between the upper plate and the lower plate.
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Description

Technology Field

[0001] The present invention (Disclosure) relates to a secondary battery electrode cutting device that manufactures a unit electrode by cutting an electrode sheet. Background Technology

[0002] This section provides background information related to the present disclosure, which is not necessarily prior art.

[0003] Generally, secondary batteries are manufactured through an electrode process, an assembly process, and a formation process, and in the electrode process, an electrode tab (hereinafter referred to as "tab") is formed on the uncoated portion of the manufactured positive or negative plate (hereinafter referred to as "electrode").

[0004] Equipment used for forming tabs in this manner includes press notching equipment and laser notching equipment; the notching equipment forms tabs on electrode sheets that are continuously unwound from a state where they are wound in a roll.

[0005] Then, the electrode sheet formed with the tab is cut to a set size to be manufactured into a unit electrode, or is wound back into a roll and unwound toward the stacking equipment side during the assembly process, where it is cut to a set size to be manufactured into a unit electrode.

[0006] As a device for cutting the aforementioned electrode sheet, a conventional guilloting type cutting device that cuts the electrode sheet perpendicular to the direction of transport of the electrode sheet is mainly used.

[0007] This cutting device includes an upper plate, a lower plate, and a cutting drive unit. When an electrode sheet is transported between the upper plate and the lower plate, the cutting drive unit raises or lowers the upper plate or the lower plate to cut the electrode sheet in the width direction, thereby manufacturing a unit electrode.

[0008] In addition, cutting devices are also being disclosed that have a cartridge-type cutting module capable of attaching and detaching modularized top and bottom plates from a cutting drive unit, so that the replacement of the top and bottom plates can be performed simply and easily.

[0009] However, conventional cutting devices had the problem of prolonged work time due to the replacement of cutting modules because they could not quantitatively adjust the clearance and perpendicularity (straightness) between the upper and lower plates.

[0010] In addition, conventional cutting devices had problems in that cutting by-products detached from the electrode sheet during cutting were not easily discharged, causing them to adhere to the unit electrode being manufactured, and flying debris detached from bearings of the cutting drive unit also adhered to the unit electrode being manufactured or accumulated between the components.

[0011] These problems not only lead to a decrease in the quality and an increase in the defect rate of manufactured unit electrodes, but also act as factors that reduce the service life of the cutting device.

[0012] Accordingly, the applicants of the present invention have made efforts to prevent the deterioration of quality and increase in the defect rate of manufactured unit electrodes, and to resolve the frequent breakdown and reduced lifespan of the cutting device, and as a result, have filed a patent application for the present invention. Prior art literature

[0013] Korean Published Patent Application No. 10-2022-0065430. Korean Registered Patent Application No. 10-2497010. Korean Registered Patent Application No. 10-2065084. The problem to be solved

[0014] The present invention (Disclosure) aims to provide a secondary battery electrode cutting device capable of quantitatively ensuring the clearance and perpendicularity between the upper and lower plates.

[0015] The present invention (Disclosure) aims to provide a secondary battery electrode cutting device capable of sucking and discharging cutting by-products detached from an electrode sheet across the entire area of ​​the underside.

[0016] The present invention (Disclosure) aims to provide a secondary battery electrode cutting device capable of preventing the scattering of flying debris caused by wear of the bearing of the cutting drive unit. means of solving the problem

[0017] This section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all of its features.

[0018] To solve the above-mentioned problem, a secondary battery electrode cutting device according to one aspect of the present invention comprises: a cutting module having an upper plate installed in an upper holder, a lower plate installed in a lower plate holder, and an adjustment means for adjusting the clearance and perpendicularity between the upper plate and the lower plate; a cutting driving unit that operates the upper plate to be raised and lowered toward the lower plate so that the electrode sheet is cut; and a cutting byproduct removal unit that sucks and discharges cutting byproducts from the electrode sheet when the electrode sheet is cut, wherein the adjustment means may include an upper plate holder support unit that supports the upper plate holder; clearance adjustment units and perpendicularity adjustment units installed in the upper plate holder support unit that elastically press and tilt the upper plate holder to adjust the clearance and perpendicularity between the upper plate and the lower plate.

[0019] In a secondary battery electrode cutting device according to one aspect of the present invention, the upper plate holder support member may include: a first mount frame formed to extend in the width direction of the electrode sheet; a second mount frame formed to extend in the width direction of the electrode sheet and fixedly installed on the first mount frame such that its front faces the rear of the first mount frame; and an adjustment shaft that horizontally penetrates through holes formed on the upper side of the upper plate holder spaced apart to support the upper plate holder between the first and second mount frames so as to enable the upper plate holder to move back and forth and tilt.

[0020] In a secondary battery electrode cutting device according to one aspect of the present invention, an adjustment groove is formed in the first mount frame so that the upper side of the upper plate holder can be moved back and forth and tilted, and the adjustment groove may be formed to extend from the lower side of the first mount frame to the upper side and open toward the rear side of the first mount frame.

[0021] In a secondary battery electrode cutting device according to one aspect of the present invention, a first tilting groove is formed in the first mount frame so that the front end of the adjustment shafts can be tiltably fitted through a self-aligning ball bearing, and a second tilting groove extending in the vertical direction may be formed in the second mount frame so that the rear end of the adjustment shafts can be tiltably fitted in the vertical direction.

[0022] In a secondary battery electrode cutting device according to one aspect of the present invention, ball bushings may be fixedly installed in the through holes so that an upper holder can move back and forth along the adjustment shafts.

[0023] In a secondary battery electrode cutting device according to one aspect of the present invention, the clearance adjustment members may include: a clearance adjustment compression coil spring fitted into a clearance adjustment hole formed in a first mount frame so that the rear end side can press the front side of the upper plate holder; and a clearance adjustment bolt fastened to be inserted into or withdrawn from the clearance adjustment hole so that the clearance adjustment compression coil spring can elastically press the front of the upper plate holder.

[0024] In a secondary battery electrode cutting device according to one aspect of the present invention, the right angle adjustment parts may include: a right angle adjustment compression coil spring that is fitted into a first right angle adjustment hole formed on the lower side of a second tilting groove and elastically supports a lower side whose upper side is connected to the rear end of an adjustment shaft; and a right angle adjustment bolt that is fastened to be inserted into or withdrawn from a second right angle adjustment hole formed by penetrating the upper part of a second mount frame on the upper side of the second tilting groove, and presses an upper side connected to the rear end of an adjustment shaft to tilt the upper plate holder and the upper plate in the up and down direction.

[0025] In a secondary battery electrode cutting device according to one aspect of the present invention, the cutting drive unit comprises: a lifting lift in which an upper holder support member is detachably installed; a cutting drive motor for operating the lifting lift up and down; and a lifting support having a vertical plate shape, wherein the rear side of a lower holder is detachably installed on the front lower side and the lifting lift is supported so as to be liftable; wherein a lifting hole is formed through the interior of the lifting support to guide the lifting of the lifting lift, guide posts into which the lifting lift is fitted so as to be liftable are installed on both sides of the lifting hole, and a top frame on which the cutting drive motor is installed may be installed so as to be horizontally extended toward the rear side of the lifting support.

[0026] In a secondary battery electrode cutting device according to one aspect of the present invention, a cutting drive motor is installed on a top frame such that its output shaft is oriented toward a lifting hole, the output shaft of the cutting drive motor is connected to an eccentric shaft via a coupling, the upper side of a vertically extended crank arm is connected to the eccentric shaft via a bearing, and a crank pin may be installed on the lower side of the crank arm via a bearing so that it is oriented toward the lifting hole.

[0027] In a secondary battery electrode cutting device according to one aspect of the present invention, the lifting lift comprises: a first lifting block extending toward the front side of the lifting support by penetrating a lifting hole at the rear of the lifting support; and a second lifting block integrally formed on the front side of the first lifting block; wherein a crank pin is connected to the rear side of the first lifting block, the second lifting block extends in the width direction of the electrode sheet, and a shank groove may be formed at the bottom so as to extend along the length direction of the second lifting block, wherein shanks formed on a first mount frame are detachably installed therein.

[0028] In a secondary battery electrode cutting device according to one aspect of the present invention, a housing is formed at the rear of a first lifting block to accommodate a crank arm, an eccentric shaft, and a crank pin inside, and the crank arm, an eccentric shaft, and a crank pin accommodated in the housing are confined inside the housing by a cover, and the crank pin is connected to the first lifting block by penetrating the housing, and the extended end of the coupling can be accommodated inside the housing by penetrating the cover.

[0029] In a secondary battery electrode cutting device according to one aspect of the present invention, the cutting byproduct removal unit comprises a trench block that extends in the width direction of the electrode sheet and is installed at the bottom of a lifting support, with a lower plate holder seated on its upper surface; and suction grooves forming a suction and discharge passage for cutting byproducts between the upper surface of the trench block and the lower plate holder are formed along the length direction of the trench block at close intervals, and the front side may be formed to extend outwardly to the front of the lower plate holder.

[0030] In a secondary battery electrode cutting device according to one aspect of the present invention, suction grooves are divided into a first region and a second region in a step shape that slopes downward from the front side to the rear side, the depth of the second region is formed to be at least twice as deep as the depth of the first region, and a third region can be formed between the first region and the second region that slopes downward from the first region toward the second region.

[0031] In a secondary battery electrode cutting device according to one aspect of the present invention, suction grooves are each connected to an outlet extending along the longitudinal direction of the trench block from the rear side of the trench block via connecting holes, and the outlet can be connected to a suction device provided externally.

[0032] In a secondary battery electrode cutting device according to one aspect of the present invention, a vertical step may be formed on the front side of a trench block. Effects of the invention

[0033] According to the present invention, not only is it easy to control the clearance and perpendicularity between the upper and lower layers, but the clearance and perpendicularity can also be quantitatively guaranteed, thereby providing the effect of maintaining the same cutting quality.

[0034] According to the present invention, cutting by-products are sucked in and discharged from the entire area of ​​the lower section, and the bearing of the cutting drive unit is sealed, thereby providing the effect of preventing cutting by-products and flying debris from adhering to the unit electrode being manufactured, as well as preventing flying debris from accumulating between each component.

[0035] In other words, according to the present invention, it is possible to extend the lifespan of the cutting device while reducing the quality degradation and defect rate of the manufactured unit electrode. Brief explanation of the drawing

[0036] FIG. 1 is a schematic cross-sectional view of a secondary battery electrode cutting device according to the present invention, and FIG. 2 is a perspective view showing the cutter module illustrated in FIG. 1 separated, and, Figure 3 is a cross-sectional view drawn along line "AA" of Figure 2. Specific details for implementing the invention

[0037] Hereinafter, an embodiment of the secondary battery electrode cutting device according to the present invention will be described in detail with reference to the drawings.

[0038] FIGS. 1 to 3 are schematic drawings illustrating a secondary battery electrode cutting device according to the present invention.

[0039] Referring to FIGS. 1 to 3, a secondary battery electrode cutting device according to the present invention comprises a cutting module (100) including an upper plate (110) and a lower plate (120), a cutting driving unit (200) that moves the upper plate (110) up and down toward the lower plate (120) to cut the electrode sheet (S), and a cutting byproduct removal unit (300) that sucks and discharges cutting byproducts from the electrode sheet (S) when the electrode sheet (S) is cut.

[0040] The cutting module (100) includes the aforementioned upper plate (110) and lower plate (120), and an adjustment means (130) that allows the clearance and perpendicularity between the upper plate (110) and the lower plate (120) to be quantitatively adjusted.

[0041] The upper plate (110) and the lower plate (120) extend in the width direction of the electrode sheet (S), and the upper plate (110) and the lower plate (120) are installed on the front side of the upper plate holder (112) and the lower plate holder (122), which are likewise extended in the width direction of the electrode sheet (S).

[0042] Here, the connection relationship between the upper plate (110) and the upper plate holder (112) and the connection relationship between the lower plate (120) and the lower plate holder (122) are substantially similar to the upper plate and upper plate holder and lower plate and lower plate holder of a conventional guillotine-type cutting device, so a detailed description thereof is omitted.

[0043] Meanwhile, the upper holder (112) is detachably installed on the lower side of the lifting lift (230) of the cutting drive unit (200), and the rear side of the lower holder (122) is detachably installed on the front lower side of the lifting support (210) of the cutting drive unit (200) that supports the lifting lift (230) so as to be liftable.

[0044] An electrode sheet (S) is transported between the upper plate (110) and the lower plate (120), and the upper plate (110) is moved up and down by the operation of the cutting drive unit (200) so that its back side overlaps with the front side of the lower plate (120), thereby cutting the electrode sheet (S) to manufacture a unit electrode (U).

[0045] The adjustment means (130) includes an upper plate holder support part (132) that supports the upper plate holder (112), clearance adjustment parts (150) and right angle adjustment parts (160) that elastically press and tilt the upper plate holder (112) to adjust the clearance and right angle between the upper plate (110) and the lower plate (120).

[0046] The upper holder support portion (132) includes first and second mount frames (134, 136) and adjustment shafts (140) that support the upper holder (112) between the first and second mount frames (134, 136).

[0047] The first and second mount frames (134, 136) are formed to extend in the width direction of the electrode sheet (S), and the second mount frame (136) is fixedly installed on the first mount frame (136) via fastening bolts so that its front faces the rear of the first mount frame (134).

[0048] At this time, the first mount frame (134) has an adjustment groove (138) formed therein so that the upper side of the upper holder (112) can be moved back and forth and tilted. The adjustment groove (138) is formed to extend from the lower side of the first mount frame (134) toward the upper side and to be open toward the rear side of the first mount frame (134).

[0049] And in the first mount frame (134), roughly "T" shaped shanks (139) are formed that are detachably installed on the elevator lift (230).

[0050] Meanwhile, the adjustment shafts (140) horizontally penetrate through holes (114) formed on the upper side of the upper holder (112) at predetermined intervals, and ball bushes (116) are fixedly installed in the through holes (114) so ​​that the upper holder (112) can move smoothly back and forth along the adjustment shafts (140).

[0051] And the adjustment shafts (140) are inserted into the adjustment groove (138) together with the upper side of the upper holder (112) and are supported tiltably on the first and second mount frames (134, 136).

[0052] To this end, the first and second mount frames (134, 136) have first and second tilting grooves (142, 144) formed therein, into which the front and rear ends of the adjusting shafts (140) are tiltably fitted.

[0053] At this time, the front end of the adjustment shafts (140) is fitted into the first tilting groove (142) via an automatic centering ball bearing (146), and the second tilting groove (144) is formed in the shape of an elongated hole extending in the vertical direction so that the rear end of the adjustment shaft (140) can be tilted in the vertical direction.

[0054] That is, the front side of the adjustment shafts (140) fitted into the first tilting groove (142) via the self-aligning ball bearing (146) serves as a pivot point during tilting for adjusting the perpendicularity between the upper plate (110) and the lower plate (120).

[0055] Clearance adjustment sections (150) and right angle adjustment sections (160) are installed on the first mount frame (134) and the second mount frame (136), respectively, corresponding to the adjustment shafts (140).

[0056] The clearance adjustment parts (150) include a clearance adjustment bolt (154) and a clearance adjustment compression coil spring (156), and the clearance adjustment compression coil spring (156) is fitted into the first mount frame (134) so ​​as to press the front side of the upper holder (112) into which the rear end is inserted into the adjustment groove (138).

[0057] To this end, a clearance adjustment hole (152) into which a clearance adjustment compression coil spring (156) is fitted is formed in the first mount frame (134), and a clearance adjustment bolt (154) is fastened to the clearance adjustment hole (152) so that the clearance adjustment compression coil spring (156) can elastically press the front of the upper holder (112).

[0058] That is, when the clearance adjustment bolt (154) is inserted into or withdrawn from the clearance adjustment hole (152), the pressure of the clearance adjustment compression coil spring (156) changes, and according to this change in pressure of the clearance adjustment compression coil spring (156), the upper plate holder (112) moves back and forth along the adjustment shafts (140), and according to this back and forth movement of the upper plate holder (112), the clearance between the upper plate (110) and the lower plate (120) is quantitatively adjusted.

[0059] Meanwhile, the right angle adjustment parts (160) include a right angle adjustment bolt (164) and a right angle adjustment compression coil spring (166).

[0060] The right angle adjustment compression coil spring (166) is fitted into the second mount frame (136) so as to elastically support the lower side, which is connected to the rear end of the adjustment shaft (140) that is fitted into the second tilting groove (144), and the right angle adjustment bolt (164) is fastened to the second mount frame (136) so as to press the upper side, which is connected to the rear end of the adjustment shaft (140) that is fitted into the second tilting groove (144).

[0061] To this end, a first right angle adjustment hole (162a) into which a right angle adjustment compression coil spring (166) is fitted is formed on the lower side of the second tilting groove (144) of the second mount frame (136), and a second right angle adjustment hole (162b) into which a right angle adjustment bolt (164) is fastened is formed on the upper side of the second tilting groove (144) so ​​as to penetrate the upper part of the second mount frame (136).

[0062] That is, when the right angle adjustment bolt (164) is inserted into or pulled out of the second right angle adjustment hole (162b), the rear end of the adjustment shafts (140) tilts up and down with the self-aligning ball bearing (146) as the center, and as the adjustment shafts (140) tilt up and down, the upper holder (112) and the upper plate (110) tilt in the up and down direction, and the right angle between the upper plate (110) and the lower plate (120) is quantitatively adjusted.

[0063] In the attached drawing, three adjustment shafts (140) and three clearance adjustment sections (150) and three right angle adjustment sections (160) corresponding to the three adjustment shafts (140) are shown, but the number of adjustment shafts (140), clearance adjustment sections (150), and right angle adjustment sections (160) is not limited to three, and the number of adjustment shafts (140), clearance adjustment sections (150), and right angle adjustment sections (160) can be increased or decreased depending on the length of the upper section (110) and the lower section (120).

[0064] The cutting drive unit (200) includes a lifting lift (230) in which an upper holder support (132) is detachably installed, a cutting drive motor (220) that operates the lifting lift (230) to be raised and lowered, and a lifting support (210) that supports the lifting lift (230) to be raised and lowered.

[0065] The lifting support (210) has a vertical plate shape, and the rear side of the lower holder (122) is installed on the front lower side so as to be detachable via fastening bolts as described above.

[0066] At this time, a rectangular lifting hole (212) that guides the lifting of the lifting lift (230) is formed through the interior of the lifting support (210), and guide posts (214) into which the lifting lift (230) can be lifted are installed on both sides of the lifting hole (212).

[0067] And on the upper side of the lifting support (210), a top frame (216) on which a cutting drive motor (220) is installed is installed so as to extend horizontally toward the rear side of the lifting support (210).

[0068] A cutting drive motor (220) is installed on a top frame (216) such that an output shaft (not shown) is oriented toward a lifting hole (212), and the output shaft of the cutting drive motor (220) is connected to an eccentric shaft (224) via a coupling (222).

[0069] And the upper side of a vertically extended crank arm (226) is connected to the eccentric shaft (224) via a bearing, and a crank pin (228) is installed on the lower side of the crank arm (226) via a bearing so as to face the lifting hole (212).

[0070] The lifting lift (230) includes a first lifting block (232) that extends from the rear of the lifting support (210) through the lifting hole (212) to the front side of the lifting support (210), and a second lifting block (238) that is integrally formed on the front side of the first lifting block (232).

[0071] Both sides of the first lifting block (232) are fitted into the guide post (214) so ​​as to be liftable, and the rear side of the first lifting block (232) is connected to a crank pin (228).

[0072] And at the rear of the first lifting block (232), a housing (234) is formed to accommodate a crank arm (226), an eccentric shaft (224), and a crank pin (228) inside, and the crank arm (226), an eccentric shaft (224), and a crank pin (228) accommodated in the housing (234) are confined inside the housing (234) by a cover (236).

[0073] At this time, the crank pin (228) passes through the housing (234) and is connected to the first lifting block (232), and the extended end of the coupling (222) passes through the cover (236) and is received inside the housing (234).

[0074] Preferably, an O-ring (not shown) is placed between the housing (234) and the cover (236).

[0075] In this way, the crank arm (226) connected to the eccentric shaft (224) and crank pin (228) is sealed by the housing (234) and cover (236), thereby preventing flying debris from falling off due to bearing wear when cutting the electrode sheet (S).

[0076] Meanwhile, the second lifting block (238) extends in the width direction of the electrode sheet (S), and a roughly "T" shaped shank groove (240ㅁ) is formed at the bottom so as to extend along the length direction of the second lifting block (238).

[0077] In the shank home (140) formed in this way, shanks (139) formed on the first mount frame (134) of the upper holder support part (132) that supports the upper hole part (112) are detachably installed.

[0078] That is, when the cutting drive motor (220) operates the crank arm (226), the lifting lift (230) moves up and down, and as the lifting lift (230) moves up and down, the upper plate (110) moves up and down toward the lower plate (120), cutting the electrode sheet (S) that is transported between the upper plate (110) and the lower plate (120) to manufacture a unit electrode (U).

[0079] The cutting byproduct removal section (300) includes a trench block (310) that extends in the width direction of the electrode sheet (S).

[0080] The trench block (310) is installed at the bottom of the lifting support (210) via fastening bolts, and a bottom holder (122) with a bottom (120) installed is seated on the upper surface of the trench block (310).

[0081] At this time, suction grooves (312) are formed on the upper surface of the trench convex (310) to form a suction discharge passage for cutting by-products between the lower holder (122) and the upper surface.

[0082] The suction grooves (312) are formed along the length direction of the Trenti block (310) at close intervals, and the suction grooves (312) are formed so that the front side extends outwardly to the front of the lower holder (122).

[0083] Additionally, the suction grooves (312) are divided into a first area (314a) and a second area (314b) in a stepped shape that slopes downward from the front side to the rear side to facilitate the smooth discharge of cutting by-products, and the depth of the second area (314b) is formed to be more than twice as deep as the depth of the first area (314a).

[0084] And between the first area (314a) and the second area (314b) of the suction grooves (312), a third area (314c) is formed that slopes downward from the first area (314a) toward the second area (314b) so that cutting by-products do not accumulate.

[0085] Meanwhile, the suction grooves (312) are each connected to an outlet (318) extending along the longitudinal direction of the trench block (310) from the rear side of the trench block (310) via connecting holes (316), and the outlet passage (318) is connected to a suction device (not shown) provided on the outside.

[0086] That is, the suction device uses a vacuum pump or the like to remove air to lower the internal pressure of the discharge passage (318), connecting holes (316), and suction grooves (312), thereby causing cutting by-products that fall off from the electrode sheet (S) when cutting the electrode sheet (S) to be sucked into the front side of the suction grooves (312). The cutting by-products sucked into the front side of the suction grooves (312) are collected in the discharge passage (318) through the first area (314a), the third area (314c), the second area (314b), and the connecting holes (316), and the cutting by-products collected in the discharge passage (318) are discharged to the outside by the suction device.

[0087] Preferably, a step (320) is formed vertically on the front side of the trench block (310) to guide cutting byproducts to the front side of the suction groove (312) so as not to interfere with the lifting operation of the upper plate (110).

[0088] The secondary battery electrode cutting device according to the present invention formed in this manner allows for easy control of the clearance and perpendicularity between the upper plate (110) and the lower plate (120), and also enables quantitative guarantee of the clearance and perpendicularity, thereby enabling the maintenance of the same cutting quality.

[0089] The secondary battery electrode cutting device according to the present invention sucks in and discharges cutting by-products from the entire area of ​​the lower section (120) and seals the bearing of the cutting drive unit (200), thereby preventing cutting by-products and flying debris from adhering to the unit electrode (U) being manufactured, as well as preventing flying debris from accumulating between each component.

[0090] It is stated that the intrinsic technical concept of the present invention is not limited to the embodiments described above, but encompasses the scope that can be easily proposed by a person skilled in the art through substitution or modification.

[0091] Furthermore, since the terms used in the description of the present invention are selected for the convenience of explanation, in grasping the intrinsic technical concept of the present invention, they should not be limited to their dictionary meanings but should be appropriately interpreted in a sense consistent with the technical concept of the present invention.

Claims

Claim 1 A cartridge-type secondary battery electrode cutting device comprising: a cutting module having an upper plate installed in an upper holder, a lower plate installed in a lower plate holder, and an adjustment means for adjusting the clearance and perpendicularity between the upper plate and the lower plate; a cutting drive unit that operates the upper plate to be raised and lowered toward the lower plate so that an electrode sheet is cut; and a cutting byproduct removal unit that sucks and discharges cutting byproducts from the electrode sheet when the electrode sheet is cut, wherein the adjustment means comprises: an upper plate holder support unit that supports the upper plate holder; and clearance adjustment units and perpendicularity adjustment units installed in the upper plate holder support unit that elastically press and tilt the upper plate holder to adjust the clearance and perpendicularity between the upper plate and the lower plate. Claim 2 A cartridge-type secondary battery electrode cutting device according to claim 1, wherein the upper plate holder support comprises: a first mount frame formed to extend in the width direction of the electrode sheet; a second mount frame formed to extend in the width direction of the electrode sheet and fixedly installed on the first mount frame such that its front faces the rear of the first mount frame; and an adjustment shaft that horizontally penetrates through holes formed on the upper side of the upper plate holder spaced apart to support the upper plate holder between the first and second mount frames so as to enable the upper plate holder to move back and forth and tilt. Claim 3 A cartridge-type secondary battery electrode cutting device according to claim 2, wherein the first mount frame has an adjustment groove formed therein so that the upper side of the upper plate holder can move back and forth and tilt, and the adjustment groove is formed to extend from the lower side of the first mount frame to the upper side and open toward the rear side of the first mount frame. Claim 4 A cartridge-type secondary battery electrode cutting device according to claim 2, wherein the first mounting frame has a first tilting groove formed therein in which the front end of the adjustment shafts are tiltably fitted via an automatic centering ball bearing, and the second mounting frame has a second tilting groove extended in the vertical direction in which the rear end of the adjustment shafts are tiltably fitted in the vertical direction. Claim 5 A cartridge-type secondary battery electrode cutting device according to claim 2, wherein ball bushings are fixedly installed in the through holes so that the upper plate holder can move back and forth along the adjustment shafts. Claim 6 A cartridge-type secondary battery electrode cutting device according to claim 2, wherein the clearance adjustment members comprise: a clearance adjustment compression coil spring fitted into a clearance adjustment hole formed in the first mount frame so that the rear end side can press the front side of the upper plate holder; and a clearance adjustment bolt fastened to be inserted into or withdrawn from the clearance adjustment hole so that the clearance adjustment compression coil spring can elastically press the front of the upper plate holder. Claim 7 A cartridge-type secondary battery electrode cutting device according to claim 4, wherein the right angle adjustment members include: a right angle adjustment compression coil spring that is fitted into a first right angle adjustment hole formed on the lower side of the second tilting groove and elastically supports a lower side whose upper side is connected to the rear end of the adjustment shaft; and a right angle adjustment bolt that is fastened to be inserted into or withdrawn from a second right angle adjustment hole formed by penetrating the upper part of the second mount frame on the upper side of the second tilting groove, and presses the upper side connected to the rear end of the adjustment shaft to tilt the upper plate holder and the upper plate in the up and down direction. Claim 8 A cartridge-type secondary battery electrode cutting device according to claim 2, wherein the cutting drive unit comprises: a lifting lift in which the upper holder support is detachably installed; a cutting drive motor for operating the lifting lift to move up and down; and a lifting support having a vertical plate shape, wherein the rear side of the lower holder is detachably installed on the front lower side and the lifting lift is supported to move up and down; wherein a lifting hole is formed through the interior of the lifting support to guide the lifting of the lifting lift, and guide posts are installed on both sides of the lifting hole to allow the lifting lift to move up and down, and a top frame on which the cutting drive motor is installed is installed on the upper side of the lifting support so as to extend horizontally toward the rear side of the lifting support. Claim 9 A cartridge-type secondary battery electrode cutting device according to claim 8, wherein the cutting drive motor is installed on the top frame such that the output shaft is oriented toward the lifting hole, the output shaft of the cutting drive motor is connected to an eccentric shaft via a coupling, the upper side of a vertically extended crank arm is connected to the eccentric shaft via a bearing, and a crank pin is installed on the lower side of the crank arm via a bearing so that it is oriented toward the lifting hole. Claim 10 A cartridge-type secondary battery electrode cutting device according to claim 9, wherein the lifting lift comprises: a first lifting block extending toward the front side of the lifting support by penetrating the lifting hole at the rear of the lifting support; and a second lifting block integrally formed on the front side of the first lifting block; wherein a crank pin is connected to the rear side of the first lifting block, the second lifting block extends in the width direction of the electrode sheet, and a shank groove is formed at the bottom extending along the length direction of the second lifting block, wherein shanks formed on the first mount frame are detachably installed therein. Claim 11 A cartridge-type secondary battery electrode cutting device according to claim 10, wherein a housing is formed at the rear of the first lifting block to accommodate the crank arm, the eccentric shaft, and the crank pin inside, the crank arm, the eccentric shaft, and the crank pin accommodated in the housing are confined within the housing by a cover, the crank pin is connected to the first lifting block by penetrating the housing, and the extended end of the coupling is accommodated within the housing by penetrating the cover. Claim 12 A cartridge-type secondary battery electrode cutting device according to claim 8, wherein the cutting byproduct removal unit comprises a trench block that extends in the width direction of the electrode sheet and is installed at the lower end of the lifting support, and on which the lower plate holder is seated on its upper surface, suction grooves forming a suction and discharge passage for cutting byproducts between the upper surface of the trench block and the lower plate holder are formed along the length direction of the trench block at close intervals, and the front side is formed to extend outwardly toward the front of the lower plate holder. Claim 13 A cartridge-type secondary battery electrode cutting device according to claim 12, wherein the suction grooves are divided into a first region and a second region having a step shape that slopes downward from the front side to the rear side, the depth of the second region is formed to be at least twice as deep as the depth of the first region, and a third region is formed between the first region and the second region that slopes downward from the first region toward the second region. Claim 14 A cartridge-type secondary battery electrode cutting device according to claim 13, wherein the suction grooves are each connected to an outlet extending along the longitudinal direction of the trench block from the rear side of the trench block via connecting holes, and the outlet is connected to a suction device provided externally. Claim 15 A cartridge-type secondary battery electrode cutting device according to claim 13, wherein a vertical step is formed on the front side of the trench block.