Electrode cutting device

Abstract

The present technology relates to an apparatus for cutting electrodes of a battery, and the apparatus includes an integrated cutting cassette module including an upper knife and a lower knife, and a bracket mounting the integrated cutting cassette module. Here, the integrated cutting cassette module includes a module frame and an upper knife holding unit which fixes and supports the upper knife and is supported on the module frame in a vertically slidable manner, and the lower knife is coupled to a lower portion of the module frame to face the upper knife. The assembly work of the electrode cutting apparatus of the present invention is very simple. Furthermore, since the upper knife and the lower knife are mounted at the integrated cutting cassette module, the gap and straightness of the upper knife and the lower knife can be adjusted quantitatively in advance.

Description

TECHNICAL FIELD

[0001] This application claims the benefit of priority based on Korean Patent Application No. 10-2020-0151943, filed on November 13, 2020, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to an apparatus for cutting an electrode, and more particularly, to an apparatus including an integrated cutting cassette module to cut an electrode, the integrated cutting cassette module including an upper knife and a lower knife. BACKGROUND

[0003] As technology development and demand for mobile devices increase, demand for secondary batteries is also rapidly increasing. Among them, lithium secondary batteries are widely used as energy sources for various electronic products and various mobile devices due to their high energy density and high operating voltage, as well as excellent storage and lifespan characteristics.

[0004] The electrodes used in these secondary batteries are divided into cathodes and anodes, which are used to electrically connect the battery to the outside of the battery. In order to use electrode materials of appropriate sizes of cathodes and anodes, cutting of the electrodes is required.

[0005] Figure 1 is a perspective view showing a conventional electrode cutting apparatus.

[0006] As shown, manufacturing of an electrode cutting apparatus requires multiple assembly works.

[0007] Specifically, at least 8 assembly works are required, including: a combination work of the lower knife ① and the lower knife block ②, a combination work of the lower knife block ② and the lower knife frame ③, a combination work of the lower knife frame ③ and the main frame ④, a combination work of the guide device ⑤ and the main frame ④, a combination work of the upper knife block ⑥ and the main frame ④, a combination work of the linear bearing ⑦ and the upper knife block ⑥, a combination work of the upper knife holder ⑧ and the upper knife block ⑥, and a combination work of the upper knife ⑨ and the upper knife holder ⑧.

[0008] Likewise, in the conventional cutting apparatus, the upper knife and the lower knife are assembled separately or independently in the cutting apparatus, and thus, as shown by arrows of Figure 1 , forces in the order or direction of assembly are applied to the upper knife and the lower knife in different directions, respectively. Controlling the gap and perpendicularity (straightness) between the upper knife and the lower knife within the tolerance range of the electrode cutting apparatus has the greatest impact on the cutting quality. However, in a structure in which forces are applied to the upper knife and the lower knife, respectively, as in the assembly structure of Figure 1 , it is almost impossible to adjust the gap and the perpendicularity within the tolerance range.

[0009] Therefore, conventionally, in order to adjust the perpendicularity between the upper knife and the lower knife, a scheme of adjusting the slope of the upper knife is sometimes used. Figure 2A slope adjuster of an upper blade of another conventional cutting apparatus is shown.

[0010] In Figure 2 case the perpendicularity between the upper blade 1 and the lower blade 2 exceeds a tolerance range, the slope of the upper blade 1 can be adjusted by adjusting a stud bolt installed at the back of the upper blade block to apply a force to the left side of the upper blade 1.

[0011] However, adjusting the slope of the upper blade during operation of the cutting apparatus decreases productivity due to non-operation loss. In addition, even if lateral pressure is applied using a stud bolt, it is difficult to finely adjust the slope of the upper blade at a predetermined production site, and the upper blade 1 can be bent due to a cantilever moment generated based on the point at which lateral pressure is applied, as shown in an enlarged view of Figure 2 .

[0012] This can be understood as a limitation due to the case in which the upper blade 1 and the lower blade 2 are independently coupled to each individual frame and force is applied separately, as shown in Figure 1 , and it is difficult to prevent curling and twisting of the blade of the upper blade through qualitative adjustment of the slope, as shown in Figure 2 .

[0013] Accordingly, there is a need for a technology capable of quantitatively securing the gap and straightness of the upper blade and the lower blade while simply performing assembly. SUMMARY

[0014]

TECHNICAL PROBLEM

[0015] The present application aims to solve at least some of the above problems. For example, one aspect of the present application provides an electrode cutting apparatus that secures the gap and straightness of an upper blade and a lower blade while allowing simple and easy assembly.

[0016]

TECHNICAL SOLUTION

[0017] An apparatus for cutting an electrode that solves the above problems includes: a one-piece cutting block module including an upper blade and a lower blade; and

[0018] A bracket that mounts the one-piece cutting block module.

[0019] Here, the one-piece cutting block module includes a module frame and an upper blade holding unit that fixes and supports the upper blade and is supported on the module frame in a vertically slidable manner, and

[0020] The lower blade is coupled to a lower portion of the module frame to face the upper blade.

[0021] In one example, the bracket includes an insertion passage, and the one-piece cutting block module is inserted into the bracket through the insertion passage.

[0022] Preferably, the bracket can include an insertion guide that guides insertion of the integrated cutting cassette module.

[0023] Further, a rear surface of the integrated cutting cassette module can be coupled to a surface of the bracket facing the rear surface through a coupling member.

[0024] Further, in one specific example, the bracket includes a driving unit, and the upper knife holding unit is connected to an upper portion of the bracket and vertically moves on the module frame by the driving unit.

[0025] More specifically, a handle unit is coupled to an upper portion of the upper knife holding unit, a handle block vertically movable by the driving unit is installed at the upper portion of the bracket, the handle unit is coupled to the handle block, and the upper knife holding unit vertically moves by movement of the handle block.

[0026] Further, in one example, the handle unit includes a handle and a handle shaft, and a passage hole is formed at an upper portion of the module frame through which the handle and the handle shaft of the handle unit pass.

[0027] A passage hole is formed at an upper portion of the module frame through which the handle and the handle shaft of the handle unit pass.

[0028] In another example, the upper knife holding unit is slidably supported on a side portion of the module frame by a cross roller guide.

[0029] Specifically, the cross roller guide includes a first guide rail installed at the module frame and a second guide rail installed at the upper knife holding unit.

[0030] More specifically, two pairs of cross roller guides are installed between the upper knife holding unit and the module frame, a first guide rail of each pair is arranged at an outer side of the module frame in a width direction, and a second guide rail of each pair is arranged at an inner side of the module frame in the width direction.

[0031] In yet another example, the upper knife holding unit is slidably supported on the module frame by a guide master.

[0032] In yet another example of the present application, the upper knife is formed in a tapered portion in which a blade of a lower end of the upper knife is inclined upward in a longitudinal direction toward a center of the upper knife.

[0033] Further, the tapered portion is formed by a plurality of stages of tapered portions having different inclination angles, and the inclination angles of the plurality of stages of tapered portions gradually decrease in the longitudinal direction toward the center of the upper knife.

[0034] In still another example, a peeler that separates the electrode from the upper blade is installed on the electrode inflow path between the upper blade and the lower blade.

[0035]

Advantageous Effects

[0036] The assembly work of the electrode cutting apparatus of the present application is very simple. In addition, since the upper blade and the lower blade are installed at the integrated cutting box module, the gap and straightness of the upper blade and the lower blade can be adjusted quantitatively in advance.

[0037] Therefore, it is possible to prevent non-operation loss during the operation of the apparatus and prevent the detachment of the electrode. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a perspective view showing a conventional electrode cutting apparatus.

[0039] Figure 2 shows a slope adjuster of the upper blade of the conventional cutting apparatus.

[0040] Figure 3 is a perspective view of an integrated cutting box module that is a main part of the electrode cutting apparatus of the present application as an embodiment.

[0041] Figure 4 is a perspective view showing a state before the assembly of the electrode cutting apparatus according to one embodiment of the present application.

[0042] Figure 5 is a perspective view showing a state during the assembly of the electrode cutting apparatus according to one embodiment of the present application.

[0043] Figure 6 is a perspective view showing a state after the assembly of the electrode cutting apparatus according to one embodiment of the present application.

[0044] Figure 7 is a rear view of a bracket and an integrated cutting box module according to one embodiment of the present application.

[0045] Figure 8 shows a side view of an electrode cutting apparatus according to another embodiment of the present application, and a perspective view in which a central part of the apparatus is cut open.

[0046] Figure 9 is a perspective view of another embodiment of the present application.

[0047] Figure 10 is a schematic view showing a form applied to the upper blade of another embodiment of the present application. DETAILED DESCRIPTION

[0048] In the following description, the detailed configuration of the invention will be described in detail with reference to the accompanying drawings and various embodiments. The embodiments described below are exemplary to aid in understanding the invention, and for the purpose of aiding in understanding the invention, the drawings are not shown to scale, and the dimensions of some components may be exaggerated.

[0049] Because the inventive concept allows for various variations and numerous embodiments, specific embodiments will be shown in the accompanying drawings and described in detail in the text. However, this is not intended to limit the invention to the specific forms disclosed, and it should be understood that all variations, equivalents, and substitutions are included within the spirit and scope of the invention.

[0050] The device for cutting electrodes according to the present invention is characterized by comprising an integrated cutting box module, which includes an upper blade and a lower blade. In conventional technology, because the upper and lower blades are connected to separate frames or components and are subjected to forces in different directions, it is difficult to adjust the perpendicularity. However, according to the present invention, by modularizing the upper and lower blades to install a unified modular frame, the forces applied to the upper and lower blades can be uniformly applied and the perpendicularity can be pre-adjusted. An integrated cutting box module refers to an upper blade (or a moving component including the upper blade) that cuts the electrode by vertical movement on the lower blade being integrally mounted on a module, and refers to a module having a box form and being replaceable and mountable on a bracket. Similarly, by configuring the upper and lower blades in an integrated cutting box module, the electrode cutting quality can be kept constant by adjusting the gap and perpendicularity between the upper and lower blades within tolerance range, thereby simplifying the assembly of the device.

[0051] (First Implementation)

[0052] Reference Figures 3 to 7 The first embodiment of the present invention is described.

[0053] Figure 3 This is a perspective view of the integrated cutting box module 100, which is the main part of the electrode cutting device of the present invention.

[0054] The integrated cutting box module 100 includes a single module frame 110, which includes an upper frame 111, a side frame 112, and a lower frame 113. The lower blade 2 is located at the lower part of the module frame 110, specifically at the lower frame 113, where it is pre-fixed. Furthermore, the upper blade 1 is fixed to an upper blade holding unit 10, which is also supported on the module frame 110. Since the upper blade 1 is to move vertically and engage with the lower blade 2 to cut the electrode, the upper blade holding unit 10 is supported on the module frame 10 in a vertically slidable manner. Figure 3The upper knife holding unit 10 is supported at the side frame 112 of the module frame 110 by a predetermined sliding unit (described later). The upper knife 1 of the upper knife holding unit 10 is finely adjusted to allow the gap and perpendicularity between the upper knife 1 and the lower knife 2 installed at the lower frame of the module frame 110 to be within a tolerance range, and the upper knife 1 is installed at the module frame 110. At this time, since the upper knife 1 (or the upper knife holding unit 10) and the lower knife 2 are installed facing one single frame (the module frame 110), the direction of force applied to the upper knife 1 and the lower knife 2 is simplified, and accordingly, adjustment of the gap and the perpendicularity becomes easy.

[0055] In addition, assembly of the electrode cutting apparatus is completed only by installing such an integrated cutting cassette module 100 on a predetermined bracket 200.

[0056] Figures 4 to 6 is a perspective view showing an example of an assembly process of the electrode cutting apparatus of the present application. In this example, a structure in which the integrated cutting cassette module 100 can be simply inserted into the bracket 200 is shown.

[0057] Figure 4 A state before the integrated cutting cassette module 100 is inserted into the bracket 200 is shown. The bracket 200 includes an insertion passage 210 into which the integrated cutting cassette module 100 can be inserted. In addition, the bracket 200 includes an insertion guide 220 for guiding insertion of the integrated cutting cassette module 100. The insertion guide 220 has a form including a protrusion and a recessed portion, or a form of a slot, to correspond to the form of the integrated cutting cassette module 100. As Figure 5 shown, when the integrated cutting cassette module 100 is inserted into the insertion passage 210, the integrated cutting cassette module 100 is inserted along the insertion guide 220 of the bracket 200.

[0058] In addition, the integrated cutting cassette module 100 can further include a guide 114 (see Figure 3 ) of a form corresponding to the insertion guide 220 of the bracket 200. Here, the forms of the insertion guide 220 and the guide 114 can be variously modified according to the design or specifications of the apparatus of the integrated cutting cassette module 110 manufactured.

[0059] Figure 6 is a perspective view showing a state after assembly of the electrode cutting apparatus of the present application is completed. As Figure 6 shown, when insertion of the integrated cutting cassette module 100 is completed, movement of the integrated cutting cassette module 100 can be prevented by combining the rear surface of the integrated cutting cassette module 100 with the surface of the bracket 200 facing the rear surface.

[0060] Figure 7A rear view of the bracket 200 and the integrated cutting cassette module 100 as elements of the present application is shown. Figure 7 (a) is a rear view of the bracket 200, Figure 7 (b) is a rear view of the integrated cutting cassette module 100.

[0061] As Figure 7 shown, when the bolt B is fastened to the insertion position b of the corresponding integrated cutting cassette module 100 by inserting the bolt B at the insertion position a of the rear surface of the bracket, the integrated cutting cassette module 100 is fixed at the bracket 200.

[0062] After the integrated cutting cassette module 100 is fixed at the bracket 200, the electrode can be cut by vertically sliding the upper knife holding unit 10 on the module frame 110 of the integrated cutting cassette module 100. In this case, the integrated cutting integrated cutting cassette module 100 can perform a cutting work by including a separate driving unit that drives the upper knife holding unit 10. However, when considering the output, size, and installation space of the driving unit, etc., as described later Figure 8 shown, it is preferable that the bracket 200 include an example of a driving unit (or the bracket 200 be connected to the driving unit).

[0063] (Second Embodiment)

[0064] Figure 8 A side view (a) of an electrode cutting apparatus according to a second embodiment of the present application is shown, as well as a perspective view (b) in which a central portion of the electrode cutting apparatus is cut away. Figure 8 (a)) and a perspective view (b) in which a central portion of the electrode cutting apparatus is cut away. Figure 8 (a)) and a perspective view (b) in which a central portion of the electrode cutting apparatus is cut away.

[0065] The electrode cutting apparatus of the second embodiment has a structure in which the upper knife holding unit 10 of the integrated cutting cassette module 100 is connected to the upper portion of the bracket 200, and the upper knife holding unit 10 can be vertically moved on the module frame 110 by a driving unit (not shown) provided in the bracket 200. Specifically, a handle unit 20 and a handle block 230 are provided for connecting the upper knife holding unit 10 and the bracket 200.

[0066] The handle block 230 that can be vertically moved by the driving unit is installed on the upper portion of the bracket 200. For example, when the rotational motion of a motor as the driving unit is converted into the linear motion of the handle block 230 by a predetermined mechanical linkage mechanism, vertical movement of the handle block 230 becomes possible. As such a motion conversion mechanism, those generally known such as a ball screw mechanism and a cam mechanism can be used, and thus a specific description is omitted.

[0067] The handle block 230 has a protrusion 231 protruding to the inside of the handle block 230 at the lower part thereof according to the shape of the handle 21 of the handle unit 20, which will be described later, and an insertion groove 232 at the upper end of the protrusion 231.

[0068] The handle unit 20 is fixed on the upper part of the upper knife holding unit 10. The handle unit 20 includes the handle 21 coupled to the handle block 230, and a handle shaft 22, one end of which is coupled to the handle 21 and the other end of which is coupled to the upper knife holding unit 10. The handle 21 and the handle shaft 22 can be formed as separate components or integrally formed. The handle 21 of the example shown in the present drawing has a recess at the side of the cylindrical body, and the protrusion 231 of the handle block 230 is inserted into the recess. The upper part of the cylindrical handle 21 is inserted into the insertion groove 232 of the lower part of the handle block 230. In this way, when the handle 21 is inserted into the handle block 230, the handle 20 is vertically moved by the vertical movement of the handle block 230, and the upper knife holding unit 10 fixed at the handle unit 20 is vertically moved (see the arrow of FIG. 6). Figure 8

[0069] A passage hole H through which the handle 21 and the handle shaft 22 of the handle unit 20 pass is formed on the upper frame 111 of the module frame 110 of the integrated cutting cassette module 100. Accordingly, the handle unit 20 can be freely vertically moved through the passage hole H without interference from the module frame 110.

[0070] The coupling of the handle unit 20 and the handle block 230 can be performed while the cutting integrated cutting cassette module 100 is inserted into the stand 200. As shown in FIG. 7, when the integrated cutting cassette module 100 is inserted into the stand 200, the handle 21 can be inserted into the handle block 230. Figures 4 to 6

[0071] The handle block 230 can be configured to allow the protrusions 231 at the lower end to approach each other. That is, for example, when the handle block 230 includes two left and right separated parts, and the protrusions 231 at the lower end are made to approach each other by a fastening bolt or the like, the handle 21 can be fastened and supported.

[0072] When the handle block 230 is connected to the handle unit 20 to transmit the force of the driving unit to the handle unit 20, the basic assembly of the electrode cutting apparatus of the present embodiment is completed. That is, as in the second embodiment, in the structure in which the upper knife holding unit 10 is driven by the driving unit of the stand 200, the assembly of the electrode cutting apparatus of the present invention can be completed by the insertion of the integrated cutting cassette module 100 into the stand 200, the coupling between the rear surface of the integrated cutting cassette module 100 and the stand 200, and the coupling between the handle block 230 and the handle unit 20.

[0073] Reference will be made to Figure 8 ​​The operation of the electrode cutting apparatus of the second embodiment is described. First, when the handle block 230 is lifted by the driving unit, the handle unit 20 and the holding unit 10 connected to the handle block 230 are moved upward. Thereafter, the electrode is moved to the space (slit) between the upper knife 1 and the lower knife 2, and the driving unit lowers the handle block 230 at the time point at which the electrode needs to be cut according to the instruction of the controller. In this way, the handle 20 of the integrated cartridge module 100 and the upper knife holding unit 10 are lowered, the upper knife 1 is supported at the lower knife 2 and cuts the electrode. When the cutting of the electrode is completed, the handle block 230 is moved upward by the driving unit, and accordingly, the handle unit 230 and the upper knife holding unit 10 are moved upward, thereby completing the cutting work. As described above, the upper knife holding unit 10 and the lower knife 2 are both supported by the module frame 110 of the integrated cutting cartridge module 100, and thus the gap and the straightness between the upper knife 1 and the lower knife 2 are properly maintained.

[0074] (third embodiment)

[0075] Reference will be made to Figure 3 A third embodiment of the present application will be described.

[0076] The vertical movement of the upper knife holding unit 10 is slidably supported by the module frame 110. A known LM guide can also be considered for the sliding support. However, in the present embodiment, the cross roller guide 40 is provided to smoothly guide the sliding of the upper knife holding unit 10 or the like. The cross roller guide 40 is a guide including two guide rails having V-shaped roller receiving grooves and a plurality of cylindrical rollers. The plurality of rollers close to each other can have rotation axes crossing at a right angle. The two guide rails can surface-contact the rolling surfaces of the plurality of rollers. The detailed structure of the cross roller guide is known, and thus further description is omitted.

[0077] In the present application, as Figure 3 shown, the first guide rail 41 of the cross roller guide 40 is mounted on the module frame (side frame) of the integrated cutting cartridge module 100, and the second guide rail 42 is mounted on the upper knife holding unit 10. When the upper knife holding unit 10 is vertically moved, the second guide rail 42 can be slidingly guided while smoothly contacting the first guide rail 41. In order to more stably perform the sliding guidance, two pairs of cross roller guides 40 are provided between the upper knife holding unit 10 and the module frame 110 of the present application. Figure 3 The perspective view of the two pairs of guides partially cutting the apparatus is shown. Referring to Figure 3The first guide rail 41 is installed on the outer side of the module frame (side frame 112) in the width direction of each pair of crossed roller guides 40, and the second guide rail 42 is installed on the inner side of the module frame (side frame 112) in the width direction of each pair of crossed roller guides 40. By distributing the load in the width direction of the module frame 110 through the two pairs of crossed roller guides 40, stable guidance of the upper tool holding unit 10 becomes possible.

[0078] (Fourth Implementation)

[0079] Figure 9 This is a perspective view of the fourth embodiment of the present invention.

[0080] Figure 9 The illustration shows a case where a guide master control 50, which is not a cross roller guide, is used as the sliding support structure for the upper tool holding unit 10. That is, in the fourth embodiment, a guide master control 50 is used that can prevent rotation in the circumferential direction of the guide axis during guidance.

[0081] The guide control 50 includes a needle roller, a retainer for holding the needle roller, a sleeve having the retainer, and a post that slides into the sleeve. Because the guide control includes a needle roller and a polygonal retainer, rotation of the post in the circumferential direction is prevented even when the post moves within the sleeve.

[0082] Figure 9 The sleeve 51 is shown connected to the module frame 110, and the upper knife holding unit 10 is coupled to a post (not shown) mounted in the unit 52, which has a post therein, so as to be guided vertically.

[0083] (Fifth Implementation)

[0084] Figure 10 This is a schematic diagram illustrating different forms of the upper knife according to another embodiment of the present invention.

[0085] exist Figures 3 to 8 In China, use Figure 10 (a) shows the form of the upper blade 1. In this form, the width of the central side of the blade at the lower end of the upper blade is relatively large, and the width of the blade gradually decreases towards the center in the longitudinal direction. That is, the upper blade is formed as a tapered portion 1a, wherein the blade at the lower end of the upper blade is inclined upward towards the center of the upper blade in the longitudinal direction.

[0086] This design is used to increase the shear angle of the first contact portion with the electrode during cutting. If the shear angle is set large, the pressure can be easily distributed to both sides, thus preventing the electrode from being torn or damaged. However, in Figure 10In the form of (a), the center portion of the upper knife is deep, and accordingly, the upper knife 1 needs to be pressed deep to completely cut the electrode. That is, there is a problem that the stroke of the upper knife holding unit 10 increases.

[0087] To prevent this, the present inventors propose Figure 10 a multi-stage angular upper knife 1 of (b). In Figure 10 In the example of (b), the tapered portion is formed of multi-stage tapered portions having different inclination angles. The inclination angles of the multi-stage tapered portions are configured to gradually decrease in the longitudinal direction toward the center of the upper knife. For example, as Figure 10 (b) shows, the upper knife 1 is formed as a tapered unit in which the blade of the lower end is inclined upward in the longitudinal direction toward the center of the upper knife, and the tapered unit includes a first tapered portion 1b of the side portion of the upper knife and a second tapered portion 1c located inside the first tapered portion 1b. Here, the inclination angle of the first tapered portion 1b is greater than the inclination angle of the second tapered portion 1c. With this configuration, by reducing the depth of the blade portion of the lower end of the upper knife while making the shear angle of the first tapered portion 1b large, the electrode can be effectively cut without deep pressing of the upper knife. That is, according to the present embodiment, it is possible to prevent the stroke of the upper knife holding unit 10 from increasing, and it is possible to prevent damage to the electrode when cutting the electrode. In Figure 10 In (b), the multi-stage tapered unit includes two-stage tapered portions in the longitudinal direction toward the center of the upper knife, but can include three or more stages of tapered portions as needed.

[0088] Although various embodiments of the present application have been described, there can be various modification examples in the scope of the technical idea of the present application in order to make the electrode cutting more effective.

[0089] For example, a stripper 115 that separates the electrode from the upper knife can be installed on the electrode inflow path between the upper knife and the lower knife. As Figure 7 and Figure 8 shown, when the stripper 115 is installed between the upper knife and the lower knife on the electrode inflow path, the upper knife 1 descends and cuts the electrode, and the stripper 115 prevents the electrode from rising in a state of being pierced by the upper knife. The stripper 115 is coupled to the module frame 110.

[0090] In another modification example, the front surface block 11 of the upper knife can be coupled to the front surface of the upper knife holding unit 10. Alternatively, the upper knife cover 12 can be installed on the upper end of the upper knife holding unit 10 (see Figure 8 ). The front surface block 11 of the upper knife and the upper knife cover 12 protect the upper knife 1 and the upper knife holding unit 10 and prevent contamination. However, if the weight of the device becomes too large as a result, the front surface block 11 of the upper knife or the upper knife cover 12 can be removed.

[0091] In the foregoing, the present application has been described in more detail by the drawings and examples. Therefore, the embodiments described in the specification and the configurations described in the drawings are only the most preferred embodiments of the present application, and do not represent the entire technical idea of the present application. It should be understood that various equivalents and modifications can be substituted for them at the time of filing the present application.

[0092] [Reference numeral explanation]

[0093] 1: upper knife

[0094] 1a: tapered portion

[0095] 1b: first tapered portion

[0096] 1c: second tapered portion

[0097] 2: lower knife

[0098] 10: upper knife holding unit

[0099] 11: front surface block of upper knife

[0100] 12: upper knife cover

[0101] 20: handle unit

[0102] 21: handle

[0103] 22: handle shaft

[0104] 40: crossed roller guide 41: first guide rail 42: second guide rail 50: guide master 51: sleeve 52: unit with column

[0105] 100: integrated cutting cassette module 110: module frame 111: upper frame

[0106] 112: side frame

[0107] 113: lower frame

[0108] 114: guide

[0109] 115: stripper

[0110] 200: bracket

[0111] 210: insertion passage 220: insertion guide 230: handle block

[0112] 231: protrusion 232: insertion groove

Claims

1. An apparatus for cutting an electrode, the apparatus comprising: a unitary cutting cassette module including an upper knife and a lower knife; and a bracket mounting the unitary cutting cassette module, wherein the unitary cutting cassette module includes a module frame and an upper knife holding unit which fixes and supports the upper knife and is supported on the module frame in a vertically slidable manner, and wherein the lower knife is coupled to a lower portion of the module frame to face the upper knife, and wherein the bracket includes an insertion passage, and the unitary cutting cassette module is inserted into the bracket through the insertion passage, wherein the bracket includes a driving unit, and the upper knife holding unit is connected to an upper portion of the bracket and is vertically moved on the module frame by the driving unit, and wherein a handle unit is coupled to an upper portion of the upper knife holding unit, a handle block vertically movable by the driving unit is mounted on the upper portion of the bracket, and the handle unit is coupled to the handle block, and the upper knife holding unit is vertically moved by movement of the handle block. 2.The apparatus of claim 1, wherein the bracket includes an insertion guide which guides insertion of the unitary cutting cassette module. 3.The apparatus of claim 1, wherein a rear surface of the unitary cutting cassette module is coupled to a surface of the bracket facing the rear surface through a coupling member. 4.The apparatus of claim 1, wherein the handle unit includes a handle and a handle shaft, and a passage hole is formed on an upper portion of the module frame through which the handle and the handle shaft of the handle unit pass. 5.The apparatus of claim 1, wherein the upper knife holding unit is slidably supported on a side portion of the module frame through cross roller guides. 6.The apparatus of claim 5, wherein the cross roller guides include first guide rails mounted at the module frame and second guide rails mounted at the upper knife holding unit. 7.The apparatus of claim 6, wherein two pairs of cross roller guides are mounted between the upper knife holding unit and the module frame, a first guide rail of each pair is arranged on an outer side of the module frame in a width direction, and a second guide rail of each pair is arranged on an inner side of the module frame in the width direction. 8.The apparatus of claim 1, wherein the upper knife holding unit is slidably supported on the module frame through a guide master. 9.The apparatus of claim 1, wherein the upper knife is formed in a tapered portion in which a blade of a lower end of the upper knife is inclined upward in a longitudinal direction toward a center of the upper knife. 10.The apparatus of claim 9, wherein the tapered portion is formed by a plurality of stages of tapered portions having different inclination angles, and wherein the inclination angles of the plurality of stages of tapered portions gradually decrease in the longitudinal direction toward the center of the upper knife. 11.The apparatus of claim 1, wherein a stripper which separates the electrode from the upper knife is mounted on an electrode inflow path between the upper knife and the lower knife.

12. The apparatus of claim 1, wherein a front surface block of the upper knife is coupled to a front surface of the upper knife holding unit.

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