WO2023163294A1 - Battery electrode plate cutting device in which punching oil is discharged from punch - Google Patents

Battery electrode plate cutting device in which punching oil is discharged from punch Download PDF

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Publication number
WO2023163294A1
WO2023163294A1 PCT/KR2022/011232 KR2022011232W WO2023163294A1 WO 2023163294 A1 WO2023163294 A1 WO 2023163294A1 KR 2022011232 W KR2022011232 W KR 2022011232W WO 2023163294 A1 WO2023163294 A1 WO 2023163294A1
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WO
WIPO (PCT)
Prior art keywords
punching oil
air
punch
oil
hole
Prior art date
Application number
PCT/KR2022/011232
Other languages
French (fr)
Korean (ko)
Inventor
안혁
이상용
엄태현
Original Assignee
안혁
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 안혁 filed Critical 안혁
Priority to CN202280002641.3A priority Critical patent/CN116964764A/en
Publication of WO2023163294A1 publication Critical patent/WO2023163294A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/12—Perforating by punching, e.g. with relatively-reciprocating punch and bed to notch margins of work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a battery electrode plate cutting mold device in which punching oil is discharged from a punch, and more particularly, on an upper plate, punching oil and jetting air that provides a power source for punching oil injection are inserted, and punching oil is combined with the jetting air It relates to a battery electrode plate cutting device in which punching oil is discharged from a punch through which punching oil is smoothly supplied since it is discharged from a carbide punch that cuts the electrode plate.
  • lithium ion polymer battery system as an auxiliary power source for a hybrid electric vehicle (HEV) is in progress, and the voltage of such a lithium ion polymer battery is more than three times higher than that of a Ni-MH (nickel-metal hydride) battery. It is known that the output is very high at room temperature. Therefore, lithium ion polymer batteries, which are high-power, high-density batteries, are being developed as batteries that can supplement automotive packaging and output characteristics.
  • a hybrid electric vehicle (FCHEV) using a conventional fuel cell uses a stack as a main power source and uses the aforementioned lithium ion polymer battery system as an auxiliary power source.
  • the lithium ion polymer battery system has a desired voltage range and battery capacity by connecting lithium ion polymer batteries in series and parallel, and has a battery management system, fuse, safety switch, etc. for battery management, and a relay for interface with the vehicle. and cable connectors.
  • the motor is driven by combining the power of the lithium ion polymer battery system for acceleration and starting.
  • the electrode plate assembly includes a positive electrode plate and a negative electrode plate.
  • the positive electrode plate and the negative electrode plate are typically prepared by mixing an active material, a conductive material, and a binder by a wet method. do. Specifically, first, a cathode active material such as lithium composite oxide or a cathode active material such as carbon is dissolved in an organic solvent such as N-methylpyrrolidone together with a conductive agent such as carbon black and a binder such as polyvinylidene fluoride to form an active material.
  • a slurry composition is prepared, then the slurry composition is applied on a current collector such as aluminum or copper foil, fired at a high temperature, and then cut into appropriate sizes to prepare positive and negative electrode plates.
  • An electrode plate assembly is made by assembling the positive electrode and the negative electrode plate made in this way together with an appropriate type of electrolyte such as a gel-type polymer electrolyte containing an organic electrolyte solution.
  • a notching device is generally used as a device for cutting the positive electrode plate and the negative electrode plate into appropriate sizes. This notching device cuts one end and the other end of the continuously supplied electrode plate material, and forms a structure in which a tab to which a terminal is connected is formed at the cut end.
  • a cutting means composed of an upper plate having first and second cutters formed at one end and the other end, and when the cutting means descends, the first and second cutters are formed. It is composed of a support means made of a lower plate in which first and second openings are formed so as to cut the plate-shaped electrode plate material while the second cutter is inserted.
  • the cutting means rises to the upper side of the supporting means, the electrode plate material is introduced between them, and then the cutting means descends so that the first and second cutters cut the electrode plate material, so that the tab to which the terminal is connected at one end is One pole plate member to be formed can be processed.
  • the conventional electrode processing unit as described above is composed of an upper mold and a lower mold, and the upper plate of the upper mold is provided with a carbide punch, which is a cutting means fixedly installed while being supported by an upper punch holder on the lower surface thereof, and the lower part of the lower mold
  • the plate has a structure in which a die punch, which is a cutting means, is installed and fixed to the upper surface to be supported by the lower die holder.
  • the conventional electrode processing unit as described above cuts an insertion hole by wire cutting so that the carbide punch is precisely inserted into the upper punch holder when installing the carbide punch in the upper punch holder, and inserts the carbide punch into the insertion hole After installation, it has a structure that is fastened and fixed with fastening bolts through the upper plate.
  • the carbide punch of the upper mold descends and cuts both ends of the electrode material, so that one end is formed with a bottom portion, which is the bottom of the electrode plate, and the other end is to process the electrode plate member in which the tab portion to which the terminal is connected is formed.
  • the lithium secondary battery electrode plate is interposed between a positive electrode plate coated with a positive electrode active material on both sides of a positive electrode current collector made of aluminum, a negative electrode plate coated with a negative electrode active material on both sides of a negative electrode current collector made of copper, and a positive electrode plate and a negative electrode plate. It is composed of a separator that electrically insulates, and a plurality of plates are stacked in the order of a positive electrode plate, a separator film, and a negative electrode plate, and sealed together with an electrolyte to manufacture a lithium secondary battery.
  • an electrode plate punching mold which is an electrode plate processing unit, is used to cut continuously supplied battery electrode plates to an appropriate length or to cut a part thereof. When injected, the punch provided in the upper mold descends and cuts the electrode plate.
  • the gap between the punch and the punch hole must always be maintained at zero, and the gap between the punch and the punch hole must be minimized. This occurs, which not only causes deformation of the punch, but also causes a problem of thermal deformation or sticking of the processing target, that is, the electrode plate.
  • Registration Patent No. 10-1943634 'Punching mold for electrode plate of lithium secondary battery equipped with a punch cooling means' to cool the punch to a certain temperature or less during operation is the lower part of the upper through hole through which the punch penetrates in the punch holder.
  • a concave-shaped distribution passage is formed along the inner surface at a predetermined height from the distribution passage, and a plurality of upper fine through holes are formed downward at regular intervals on the distribution passage, and the upper side of the distribution passage communicates with the outside to supply refrigerant.
  • a hole is formed and a cooling passage is formed along the inner surface of the upper through hole from the refrigerant supply hole to the distribution passage, so that the refrigerant flowing through the cooling passage and the distribution passage cools the outer surface of the punch inserted into the upper through hole. and a punch cooling means for introducing into the lower through hole through the upper fine through hole.
  • the refrigerant flows from the refrigerant supply hole to the distribution passage formed along the inner surface of the upper through hole and the distribution passage. Since the cooling passage is open to the outside, the refrigerant is discharged from the refrigerant supply hole and the pressure disappears, so the movement time of the refrigerant is shortened. Since it takes a long time and has a long flow path, there is a disadvantage in that a long stabilization time is required after supplying the refrigerant for the first time.
  • a punch made of carbide, a punch holder and a stripper surrounding it are made of steel, and a rectangular punch holder and stripper into which a rectangular punch is inserted Holes are formed, making it difficult to use the positive electrode plate formation part having a complicated structure.
  • Patent Document 1 KR 10-0908573 (registration number) 2009.07.14.
  • Patent Document 2 KR 10-1691937 (registration number) 2016.12.27.
  • Patent Document 3 KR 10-1943634 (registration number) 2019.01.23.
  • Another object of the present invention is to remove heat generated when a cemented carbide punch rubs against a cemented carbide die by providing smooth punching oil suitable for the lifting and lowering speed of the mold even when the moving speed of the punching oil cannot be controlled due to a small moving hole through which the punching oil moves.
  • the purpose is to provide a battery electrode plate cutting device in which punching oil is discharged from a punch that prevents aluminum dust generated during electrode plate cutting.
  • Another object of the present invention is to pass through the punching oil supply hole of the carbide punch and directly spray the punching oil from the punching oil outlet formed on the lower or side surface, so that the injection flow path is short, so the setup time is short and the stabilization time is short. It is to provide a battery electrode plate cutting device through which punching oil is discharged.
  • Another object of the present invention is to provide a battery electrode plate cutting device in which punching oil is discharged from a punch that can be used not only for a negative plate of a secondary battery but also for a complex positive plate forming part.
  • the present invention is a battery electrode plate cutting device for processing an electrode plate material supplied between an upper mold and a lower mold, and an upper plate constituting the upper mold 110 and receiving punching oil and air from the upper part (110a) and; an upper punch holder 112 disposed under the upper plate 110a and to which a carbide punch 111 is fixed; a stripper 113 disposed below the upper punch holder 112 and through which the carbide punch 111 penetrates and fixes the electrode plate material; A lower die holder 122 to which a cemented carbide die 121 for seating and cutting an electrode plate material is fixed on the upper surface of the lower plate 120a constituting the lower mold 120; A punching oil branch block 114 having a first punching oil insertion hole 114a through which punching oil is supplied and a first scrap injection air hole 114b through which exhaust air to help scrap discharge is supplied is formed in the upper plate 110a, A punching oil air block 115 inserted into the punching oil branch block 114 and having a punching oil spray
  • the punching oil supply hole 111a receiving the injection punching oil supplied from the third punching oil insertion hole 117a passes through the top and bottom, and the punching oil outlet 111b on the lower surface thereof ) is formed.
  • an air branch passage 115c separating the injection air into multiple paths at the end of the punching oil injection air hole 115a penetrating the punching air block 115 is formed, and each branch of the air branch passage 115c is connected to the air insertion hole 116a of the branch block base 116 so that the jetted air moves downward.
  • the first punching oil branch passage 114a of the punching oil branch block 114 of the present invention is continuously formed along the edge of the punching oil air block 115 on the lower surface of the punching oil branch block 114 (114c). ) is connected to the second punching oil insertion hole 116b of the branch block base 116, and the punching oil is moved downward.
  • the air branching block 117 of the present invention further has an air branching hole 117b for branching the exhaust air transferred from the first scrap jetting air hole 114b of the punching oil branching block 114 on the lower surface thereof.
  • the first scrap jet air hole 114b of the punching oil branch block 114 of the present invention is connected to the second scrap jet air hole 116c of the branch block base 116, and the second scrap jet air hole 116c ) passes through the upper plate 110a and is connected to the air branch hole 117b, and the air branch hole 117b penetrates the upper punch holder 112 and passes through the upper punch holder 112 to the fourth scrap jet air hole of the carbide punch 111 (111c) is connected.
  • the air insertion hole 116a is formed through and the injection air is moved, and the second punching oil insertion hole 116b is formed obliquely in the direction of the air insertion hole 116a for punching. Oil is moved, and jetting oil is formed in the first punching oil discharge hole 116d where the air insertion hole 116a and the second punching oil insertion hole 116b are coupled inside the branch block base 116.
  • the second punching oil insertion hole 116b is formed through and the punching oil is moved, and the air insertion hole 116a is inclined in the direction of the second punching oil insertion hole 116b. air is formed and the jetted air is moved, and the jetted punching oil is generated in the first punching oil discharge hole 116d where the air insertion hole 116a and the second punching oil insertion hole 116b are coupled inside the branch block base 116. is formed
  • the punching oil supply hole 111a receiving the injection punching oil supplied from the third punching oil insertion hole 117a moves inside and the punching oil outlet 111b on the side thereof is formed
  • the punching oil branch block 114 and the punching oil air block 115 of the present invention are arranged on the same plane, and the punching oil air block 115 has a branch block base 116 and its outer shape disposed below it. this is the same
  • the battery electrode plate cutting device in which punching oil is discharged from the punch of the present invention has an effect of supplying an appropriate amount of punching oil according to the lifting and lowering speed of the mold by providing power to control the moving speed to the punching oil for cooling.
  • the punching oil is injected directly from the punching oil outlet formed on the bottom or side surface of the carbide punch through the punching oil supply hole of the carbide punch, so the injection flow path is short, so the setup time is short and the stabilization time is short.
  • the present invention has an effect that can be used not only for a negative electrode plate of a secondary battery but also for a complicated positive electrode plate forming part.
  • FIG. 1 is a schematic perspective state view of a battery electrode plate cutting device in which punching oil is discharged from a punch according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view of a battery electrode plate cutting device in which punching oil is discharged from a punch according to an embodiment of the present invention
  • FIG. 3 is a perspective view from above of a state in which a punched oil air block, a punched oil branch block, and a branch block base embedded in an upper plate are separated from a battery electrode plate cutting device in which punched oil is discharged from a punch according to an embodiment of the present invention
  • FIG. 4 is a perspective view of a state in which a punched oil air block, a punched oil branch block, and a branch block base embedded in an upper plate are separated from a battery electrode plate cutting device in which punched oil is discharged from a punch according to an embodiment of the present invention, viewed from the bottom,
  • FIG. 5 is an exploded perspective view of a punching oil block, a punching oil branch block, and a branch block base according to an embodiment of the present invention
  • FIG. 6 is a perspective view of a punching-oiled air block according to an embodiment of the present invention.
  • FIG. 7 is a perspective view of a punched oil branch block according to an embodiment of the present invention.
  • FIG. 8 is a perspective view of a branch block base according to an embodiment of the present invention.
  • FIG. 9 is a perspective view of an air branching block according to an embodiment of the present invention.
  • FIG. 10 is an exploded perspective view showing a state in which a punched oil branch block and a branch block base are coupled according to an embodiment of the present invention
  • FIG. 11 is an exploded perspective view showing a state in which a punching air block and a branch block base are coupled according to an embodiment of the present invention
  • FIG. 12 is an exploded perspective view showing a state in which an air branching block and a carbide punch are coupled according to an embodiment of the present invention
  • FIG. 13 is a cross-sectional view showing a state in which punching oil and air are supplied and discharged from the lower surface of a carbide punch in an electric electrode plate cutting device in which punching oil is discharged from a punch according to an embodiment of the present invention
  • FIG. 14 is a perspective view of a carbide punch according to another embodiment of the present invention.
  • 15 is a cross-sectional view showing a state in which punching oil and air are supplied and discharged from the side of a carbide punch in an electric electrode plate cutting device in which punching oil is discharged from a punch according to another embodiment of the present invention.
  • the present invention is an upper mold 110 that cuts continuously supplied electrode plate material while moving up and down, and a lower mold 120 provided on the lower side of the upper mold 110 and seated so that the supplied electrode material can be cut
  • the battery electrode plate cutting device 100 in which punching oil is discharged from the punch processing the electrode plate while the punch of the upper mold moves up and down when electrode material is supplied therebetween, as shown in FIGS. 1 to 15,
  • an upper plate 110a constituting the upper mold 110 and receiving punching oil and air from the upper part;
  • a stripper 113 disposed below the upper punch holder 112 and through which the carbide punch 111 penetrates and fixes the electrode plate material;
  • a punching oil branch block 114 having a first punching oil insertion hole 114a through which punching oil is supplied and a first scrap injection air hole 114b through which exhaust air to help scrap discharge is supplied is formed in the upper plate 110a,
  • a punching oil air block 115 inserted into the punching oil branch block 114 and having a punching oil spraying air hole 115a through which spraying air for supplying a spraying force to the punching oil is formed, and the punching oil branch block 114 below
  • the branch block base 116 is buried and the branch block base 116 to which blowing air and punching oil are respectively introduced and coupled is disposed;
  • a third punching oil is inserted to supply jetting oil combined with the jetting air transferred from the branch block base 116 to the punching oil supply hole 111a formed in the carbide punch 111.
  • the hole 117a and the air branching hole 117b branching the exhaust air transferred from the first scrap jetting air hole 114b of the punched oil branching block 114 are formed on the lower surface of the air branching block 117 is buried.
  • the present invention supplies punching oil and air to the upper mold, and combines them before discharging them from the cemented carbide to control the movement speed and amount of punching oil. Separately, after processing the electrode plate, scraps cut from the electrode plate material Separate air to assist in the discharge of scrap is supplied from the upper mold. In order to avoid confusion of terms, it is referred to as 'punching oil' and 'air' when referring to the process before combining punching oil and air supplied to the upper mold. 'Air' is combined with punching oil to provide punching oil supply speed, and air to separate scrap is separately supplied and moved along a separate flow path.
  • 'injection air' When referring only to air combined with punching oil, it is referred to as 'injection air', and when referring to only air for separating scrap, it is referred to as 'exhaust air'.
  • 'jet punching oil' punching oil after being combined with jet air.
  • the ‘electrode material’ is until the punch cuts it by the lowering of the upper mold, and after being cut by the punch, it is called the ‘electrode plate’.
  • the case where there is a protrusion in the electrode plate is called 'positive plate', and the case where there is no protrusion is called 'negative electrode plate'.
  • the present invention has the advantage of providing punching oil in a necessary amount and speed to both the negative plate and the positive plate, and mainly shows and describes a more complex structure of the positive plate, but is not limited thereto.
  • the present invention can be used in molds for manufacturing battery electrode plates in various fields such as cell phone batteries, hybrid batteries, other batteries, and next-generation batteries (all-solid, lithium metal, lithium sulfur, hydrogen batteries, etc.) in addition to batteries for electric vehicles.
  • cell phone batteries hybrid batteries, other batteries, and next-generation batteries (all-solid, lithium metal, lithium sulfur, hydrogen batteries, etc.) in addition to batteries for electric vehicles.
  • next-generation batteries all-solid, lithium metal, lithium sulfur, hydrogen batteries, etc.
  • the upper mold 110 joins and cuts the electrode material continuously introduced while moving up and down, and the lower mold 120 is provided on the lower side of the upper mold 110 and engages with the upper mold 110 to cut the electrode material is set to be cut.
  • the upper plate 110a constituting the upper mold 110 and the lower plate 120a constituting the lower mold 120 are vertically connected by a plurality of main guide posts 110b to accurately align punches and dies. .
  • the upper mold 110 and the lower mold 120 have a structure connected vertically by the main guide post 110b, so that the upper mold 110 is lowered while the lower mold 120 is fixed. It is a structure in which the carbide punch 111 engages with the carbide die 121 of the lower mold to cut the electrode plate material while punching it.
  • the electrode material is supplied between the upper mold 110 and the lower mold 120, and both ends of the electrode material are cut and processed while the carbide punch 111 of the upper mold 110 moves up and down, and one end is the bottom of the electrode plate. A portion (negative electrode plate) is formed, and the other end is formed with a tab portion (positive electrode plate) to which terminals are connected. Accordingly, the upper mold 110 is divided into a bottom carbide punch and a tap carbide punch, respectively, and installed.
  • the tab portion which is the anode portion where the tab carbide punch protrudes from the electrode plate material
  • it is divided into two carbide punches 111 and formed spaced apart, and the upper surface of the carbide punch 111 is placed in an upper punch holder 112 ) is fixed, and the stripper 113 holds the periphery and is installed in combination.
  • the carbide punch 111 may be provided as one, and the present invention does not exclude this.
  • the upper punch holder 112 and A plurality of sub guide posts 110f are coupled between the lower die holders 122, and the upper punch holder 112 is elastically supported by the sub guide posts 110f, and the upper punch holder 112 is accurately lowered. and perform the return. Accordingly, the cutting operation is performed while the carbide die 121 formed in the lower die holder 122 and the carbide punch 111 formed in the upper punch holder 112 are in close contact with each other.
  • the present invention supplies blowing air to provide a power source that appropriately pushes punching oil.
  • the amount of blown air can be easily controlled by the compressor, so that the punching rate of the desired amount and speed can be provided to the electrode material. Jet air may not be supplied when punching oil is supplied smoothly alone.
  • the present invention is an air input line for smoothly supplying punching oil from the top of the upper plate 110a to the carbide punch 111, that is, an air supply unit 140, and a punching oil input line, that is, a punching oil supply unit 130 are each provided, meet at the intermediate branch point, are coupled, move quickly, and are supplied to the cemented carbide punch 111.
  • the air supply unit 140 and the punching oil supply unit 130 have the same effect even if the positions of the punching oil and the jetting air are changed.
  • the supply of jetting air may be stopped and only the punching oil supply unit 130 may be operated to input only punching oil.
  • the punching oil supply hole 111a through which the jetted punching oil combined with the jetted air from the carbide punch 111 is supplied passes through the carbide punch 111 as shown in FIG. 111b) can be formed so that the blasting oil can be discharged from the lower surface of the cemented carbide punch 111.
  • the punching oil discharge port 111b is formed on the side of the carbide punch 111 so that the injection punching oil can be discharged from the side of the carbide punch 111.
  • punching oil supply holes 111a are formed along the section where the electrode material is punched, and the number of punching oil supply holes 111a can be changed according to the design, and in the drawing, one carbide punch ( 111), 6 to 7 punching oil supply holes 111a and a punching oil outlet 111b are formed.
  • the carbide punch 111 has a punching oil supply hole 111a for supplying sprayed punching oil to the electrode plate, and since there is no open space up to the punching oil outlet 111b, the sprayed punching oil combined with the sprayed air is quickly discharged. can do.
  • the carbide punch 111 protrudes from the stripper 113 and the carbide punch 111 is slidably provided.
  • the carbide punch 111 descends together with the upper punch holder 112 while being coupled to the lower surface of the upper punch holder 112, and at the same time the stripper 113 also descends to cut the electrode material. pressurize to fix. At this time, the carbide punch 111 disposed on the same plane as the lower surface of the stripper 113 continues to descend to the lower side of the stripper 113 and is inserted into the punch hole of the lower die holder 122 to punch the electrode material, Cut it.
  • the stripper 113 disposed under the upper plate 110a is made of steel and fixes the electrode plate material, but when the carbide punch 111 cuts the electrode plate material and goes up, the electrode plate material is cut by the carbide punch 111 ) and prevents it from rising to the upper side.
  • the stripper 113 is provided so as to be slid elastically by a sub guide post 110f extending from the upper plate 110a.
  • a conventional driving means such as a conventional hydraulic or pneumatic cylinder, the electrode plate material is pressed with an elastic force to prevent it from rising upward.
  • the upper plate 110a, the carbide punch 111, the upper punch holder 112, and the stripper 113 constitute the upper mold 110
  • the lower plate 120a, the carbide die 121, the lower The die holder 122 constitutes the lower mold 120 .
  • a branching block insertion groove 110c is formed on the top of the upper plate 110a, and is connected to the punching oil supply unit 130 through the branching block insertion groove 110c to supply the punching oil branch block 114 and
  • the punching oil air block 115 connected to the air supply unit 140 and supplied with jetting air is disposed on the same plane (same height), and the punching oil block 114 and the punching oil block 114 are disposed below the punching oil block 114.
  • a branch block base 116 to which blowing air is coupled is inserted.
  • the upper plate 110a is formed with a first punching oil insertion hole 114a through which punching oil is supplied and a first scrap spraying air hole 114b through which exhaust air to help discharge scrap is supplied.
  • the punching oil branch block 114 which is disposed on the same plane as the punched oil branch block 114, is inserted into the hollow air block insertion groove 114d inside the punched oil branch block 114 and provides a power source for punching oil movement.
  • the punching oil branch block 114 As shown in FIG. 7, in the punching oil branch block 114, the first punched oil insertion hole 114a penetrating from the upper surface to the lower surface meets the punched oil branch passage 114c formed on the lower surface of the punched oil branch block 114 At the periphery of the punching oil is diverged.
  • the punching oil branch passage 114c is continuously formed along the edge of the punching oil air block 115 on the lower surface of the punching oil branch block 114. Even if the punching oil moving in the punching oil branch passage 114c is strongly supplied to the punching oil supply unit 130 by a pump (not shown), the moving force is weakened while moving the punching oil branch passage 114c formed on the same plane. Without a separate power source, it has no choice but to move slowly.
  • the punching oil air block 115 inserted into the punching oil branch block 114 has an air branch passage 115c in which punching oil injection air holes 115a penetrating from the upper surface to the lower surface are formed on the lower surface. It is connected with and branched into multiple branches.
  • the air branch passage 115c is radially formed on the lower surface of the punching oil air block 115.
  • the injection air moving in the air branch passage 115c is supplied to the air supply unit 140 at an appropriate pressure by controlling a compressor (not shown), and the punching oil injection air hole 115a and the air branch passage formed on the same plane ( 115c), it is possible to maintain a continuous pressing force, so that an appropriate moving force according to the need can be provided to the injection punching oil coupled in the branch block base 116.
  • the branching block base 116 has an air insertion hole 116a through which a punching oil branch block 114 and a punching oil air block 115 are coupled from the top, and penetrates in a linear direction, and the air
  • a second punching oil insertion hole 116b inclined downward in the direction of the insertion hole 116a is formed, and the air insertion hole 116a and the second punching oil insertion hole 116b meet inside to form one first punching oil insertion hole 116b.
  • a discharge hole 116d is formed.
  • the punching oil injection air holes 115a of the punching oil air block 115 are branched into a plurality through the air branch passage 115c, and the air of the branch block base 116 for each branch is branched. It is connected to the insertion hole 116a to move the blown air, and the first punching oil insertion hole 114a of the punching oil branch block 114 is located on the lower surface of the punching oil branch block 114 to supply air to the punching oil block 115.
  • the punching oil is moved from the punching oil branch passage 114c formed along the edge to the second punching oil insertion hole 116b of the branch block base 116.
  • the air insertion hole 116a and the second punching oil insertion hole 116b may be coupled one-to-one, or a plurality of insertion holes through which different media move may be coupled to any one insertion hole.
  • the air insertion hole 116a of the branch block base 116 and the second punching oil insertion hole 116b meet, and the rapidly moving jet air and the slowly moving punching oil are coupled to the end of the air insertion hole 116a.
  • the injection punching oil passes through the phosphorus first punching oil discharge hole 116d and moves downward through the second punching oil discharge hole 110e of the upper plate 110a. At this time, the injection punching oil may be sprayed from the first punching oil discharge hole 116d without forming the second punching oil discharge hole 110e of the upper plate 110a.
  • the upper punch holder 112 disposed on the lower surface of the upper plate 110a has an air branch block insertion groove 112a formed on the upper surface, and a discharge for pushing scrap into the air branch block insertion groove 112a.
  • An air branching block 117 through which air is branched is buried.
  • the air branching block 117 includes a third punching oil insertion hole 117a that descends in a jet punching oil state in which punching oil and sprayed air are combined, and a punching oil branch block 114 for spraying exhaust air for discharging scrap.
  • An air branch hole 117b connected to is provided.
  • the air branch block insertion groove 112a of the upper punch holder 112 is formed extending from the third punching oil insertion hole 117a and the first scrap spraying air hole 114b through which spraying oil is introduced and sprayed,
  • An air branch hole 117b connected to the fourth scrap jet air hole 111c of the carbide punch 111 is formed.
  • a plurality of large holes not described in the upper punch holder 112 are bolt fastening holes, and have nothing to do with injection punching oil and discharged air.
  • the first scrap spraying air hole 114b of the punching oil branch block 114 is connected to the second scrap spraying air hole 116c of the branch block base 116, and the second scrap spraying air hole 116c Passes through the upper plate 110a and is connected to the air branch hole 117b, and the air branch hole 117b penetrates the upper punch holder 112 and passes through the upper punch holder 112 to the fourth scrap injection air hole of the carbide punch 111 ( 111c) to inject exhaust air.
  • the injection punching oil discharged from the punching oil outlet 111b passing through the punching oil supply hole 111a spreads while first contacting the electrode plate material, and is evenly buried in the carbide punch 111 and the carbide die 121, 4
  • the discharge air injected from the scrap injection air hole 111c cuts the electrode plate and discharges the remaining scrap.
  • the punching oil supplied from the punching oil supply unit 130 is combined with the jetting air supplied from the air supply unit 140 to quickly and smoothly supply the jetting oil to the punching oil outlet 111b of the punching oil supply hole 111a. are supplied
  • the blasting punching oil first contacts the electrode plate material, spreads from the electrode plate material, and the carbide punch 111 cuts the electrode material, and the carbide punch 111 and the carbide die 121 contact each other, and the jetting oil sprays the carbide punch 111 ) and the side surface of the cemented carbide die 121.
  • the supply amount and supply speed of the ejected punching oil can be adjusted by controlling the jetting air according to the movement speed of the electrode plate material and the vertical movement speed of the upper mold.
  • the stripper 113 may also be covered with spray punching oil.
  • the punching oil supply unit 130 is coupled to the first punching oil insertion hole 114a of the punching oil branch block 114, and the air supply unit 140 is the punching oil injection air hole 115a of the punching oil air block 115 ), but can be used by changing the position. Accordingly, the punching oil moves in a straight line and is injected from the branch block base 116, and the injection air faster than the punching oil is combined with the punching oil in an inclined direction to provide a power source for pushing the punching oil.
  • the present invention can remove heat generated when cutting an electrode plate with a punch by blast punching oil and prevent fine aluminum powder from flying.
  • the battery electrode plate cutting device 100 in which punching oil is discharged from the punch of the present invention provides power to control the moving speed to the punching oil for cooling, so that an appropriate amount of punching oil can be supplied according to the lifting speed of the mold. there is.
  • the punching oil is injected directly from the punching oil outlet formed on the bottom or side surface of the carbide punch through the punching oil supply hole of the carbide punch, so the injection flow path is short, so the setup time is short and the stabilization time is short.
  • the present invention has an effect that can be used not only for a negative electrode plate of a secondary battery but also for a complicated positive electrode plate forming part.
  • branch block base 116a air insertion hole
  • 117a Third punching oil insertion hole 117b: Air branch hole

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Abstract

The present invention relates to a battery electrode plate cutting die device in which punching oil is discharged from a punch, and more specifically relates to a battery electrode plate cutting device in which punching oil is discharged from a punch wherein punching oil and spraying air that provides the driving force for spraying the punching oil are inserted from above an upper plate, the punching oil joins with the spraying air and is discharged from an ultralight punch that cuts an electrode plate, enabling a smooth supply of punching oil.

Description

펀치에서 타발유가 배출되는 전지 극판 절단장치Battery plate cutting device that discharges punching oil from the punch
본 발명은 펀치에서 타발유가 배출되는 전지 극판 절단 금형장치에 관한 것으로, 보다 상세하게는 상부플레이트 위에서 타발유와, 타발유 분사의 동력원을 제공하는 분사에어가 삽입되고, 타발유가 분사에어와 결합되어 극판을 절단하는 초경펀치에서 배출되므로 원활한 타발유 공급이 이루어지는 펀치에서 타발유가 배출되는 전지 극판 절단장치에 관한 것이다.The present invention relates to a battery electrode plate cutting mold device in which punching oil is discharged from a punch, and more particularly, on an upper plate, punching oil and jetting air that provides a power source for punching oil injection are inserted, and punching oil is combined with the jetting air It relates to a battery electrode plate cutting device in which punching oil is discharged from a punch through which punching oil is smoothly supplied since it is discharged from a carbide punch that cuts the electrode plate.
하이브리드 전기자동차(HEV; Hybrid Electric Vehicle)의 보조 동력원으로써 리튬 이온 폴리머 전지 시스템에 대한 개발이 진행되고 있으며, 이러한 리튬 이온 폴리머 전지는 Ni-MH(니켈-금속수소) 전지에 비해 전압이 3배 이상 높고, 상온에서 출력이 매우 높은 것으로 알려져 있다. 따라서 고출력 고밀도 전지인 리튬 이온 폴리며 전지는 자동차 패키징 및 출력 특성을 보완할 수 있는 전지로 개발되고 있다.Development of a lithium ion polymer battery system as an auxiliary power source for a hybrid electric vehicle (HEV) is in progress, and the voltage of such a lithium ion polymer battery is more than three times higher than that of a Ni-MH (nickel-metal hydride) battery. It is known that the output is very high at room temperature. Therefore, lithium ion polymer batteries, which are high-power, high-density batteries, are being developed as batteries that can supplement automotive packaging and output characteristics.
통상의 연료 전지를 사용하는 하이브리드 전기자동차(FCHEV)는 주동력으로 스택(stack)을 사용하며, 보조 동력원으로 전술한 리튬 이온 폴리머 전지 시스템을 사용하게 된다. 리튬 이온 폴리머 전지 시스템은 리튬 이온 폴리머 전지의 직렬 및 병렬로 연결되어 원하는 전압 범위 및 전지 용량을 가지게 되며, 전지 관리를 위해 배터리 관리시스템, 퓨즈, 안전 스위치 등이 있고, 차량과의 인터페이스를 위해 릴레이와 케이블 커넥터들로 구성되어 있다.A hybrid electric vehicle (FCHEV) using a conventional fuel cell uses a stack as a main power source and uses the aforementioned lithium ion polymer battery system as an auxiliary power source. The lithium ion polymer battery system has a desired voltage range and battery capacity by connecting lithium ion polymer batteries in series and parallel, and has a battery management system, fuse, safety switch, etc. for battery management, and a relay for interface with the vehicle. and cable connectors.
그리고 연료 전지 하이브리드 전기자동차는 주동력원인 스택에 의해 구동 시 가속, 출발 등에 리튬 이온폴리머 전지 시스템의 동력을 합하여 모터를 구동하게 되어 있다.In addition, when the fuel cell hybrid electric vehicle is driven by the stack, which is the main power source, the motor is driven by combining the power of the lithium ion polymer battery system for acceleration and starting.
이러한 리튬 이온 폴리머 전지의 주요 구성요소 중 하나인 극판 조립체의 구성을 살펴보면, 극판 조립체는 양극판 및 음극판을 구비하는데, 양극판 및, 음극판은 통상적으로 활물질과 도전재와 바인더를 습식 방법에 의해서 혼합함으로써 제조된다. 구체적으로는 먼저 리튬 복합 산화물과 같은 양극 활물질 또는, 카본과 같은 음극 활물질을 카본블랙과 같은 도전제 및 폴리비닐리덴플루오라이드와 같은 바인더와 함께 N-메틸피롤리돈과 같은 유기용매에 용해시켜서 활물질 슬러리 조성물을 만들고, 다음에 슬러리 조성물을 알루미늄 또는 구리 호일과 같은 집전체상에 도포하고 고온에서 소성한 다음 적당한 크기로 절단하여 양극 및 음극판을 제조한다.Looking at the configuration of the electrode plate assembly, which is one of the main components of such a lithium ion polymer battery, the electrode plate assembly includes a positive electrode plate and a negative electrode plate. The positive electrode plate and the negative electrode plate are typically prepared by mixing an active material, a conductive material, and a binder by a wet method. do. Specifically, first, a cathode active material such as lithium composite oxide or a cathode active material such as carbon is dissolved in an organic solvent such as N-methylpyrrolidone together with a conductive agent such as carbon black and a binder such as polyvinylidene fluoride to form an active material. A slurry composition is prepared, then the slurry composition is applied on a current collector such as aluminum or copper foil, fired at a high temperature, and then cut into appropriate sizes to prepare positive and negative electrode plates.
이렇게 만들어진 양극 및 음극판을 유기 전해액을 함유한 겔형 고분자 전해질과 같은 적당한 종류의 전해질과 함께 조립함으로써 극판 조립체가 이루어진다.An electrode plate assembly is made by assembling the positive electrode and the negative electrode plate made in this way together with an appropriate type of electrolyte such as a gel-type polymer electrolyte containing an organic electrolyte solution.
여기서, 양극판 및 음극판을 적당한 크기로 절단하는 장치로는 통상적으로 노칭(notching) 장치가 이용된다. 이러한 노칭장치는 연속적으로 공급되는 극판소재의 일단 및 타단을 커팅하며, 커팅된 일단에는 단자가 연결되는 탭이 형성되는 구조를 이루게 된다.Here, a notching device is generally used as a device for cutting the positive electrode plate and the negative electrode plate into appropriate sizes. This notching device cuts one end and the other end of the continuously supplied electrode plate material, and forms a structure in which a tab to which a terminal is connected is formed at the cut end.
상기와 같은 종래의 노칭장치는 본 출원인이 출원하여 등록된 등록특허 제10-0908573호의 '하이브리드 자동차용 리튬 이온 폴리머 전지의 극판가공유닛'이 공지되어 있다.As for the conventional notching device as described above, 'electrode plate processing unit for lithium ion polymer battery for hybrid vehicles' of Registered Patent No. 10-0908573 filed and registered by the present applicant is known.
상기 '하이브리드 자동차용 리튬 이온 폴리머 전지의 극판가공유닛'의 구성을 간단히 살펴보면 제1 및 제2커터가 일단 및 타단에 형성되는 상부플레이트로 이루어지는 절단수단과, 상기 절단수단이 하강할 때 제1 및 제2커터가 삽입되면서 판 형상의 극판소재를 절단하도록 제1 및 제2개구부가 형성되는 하부플레이트로 이루어지는 받침수단으로 구성된다.Looking briefly at the configuration of the 'electrode plate processing unit of a lithium ion polymer battery for a hybrid vehicle', a cutting means composed of an upper plate having first and second cutters formed at one end and the other end, and when the cutting means descends, the first and second cutters are formed. It is composed of a support means made of a lower plate in which first and second openings are formed so as to cut the plate-shaped electrode plate material while the second cutter is inserted.
따라서 상기 절단수단이 상기 받침수단의 상부측으로 상승할 때 이들 사이로 극판소재가 유입되고 이어 상기 절단수단이 하강하면서 제1 및 제2커터가 극판소재를 절단하도록 함으로써 일단부에 단자가 연결되는 탭이 형성되는 하나의 극판부재가 가공될 수 있게 된다.Therefore, when the cutting means rises to the upper side of the supporting means, the electrode plate material is introduced between them, and then the cutting means descends so that the first and second cutters cut the electrode plate material, so that the tab to which the terminal is connected at one end is One pole plate member to be formed can be processed.
상기와 같은 종래의 극판가공유닛은 상부금형과 하부금형으로 구성되고 상부금형의 상부플레이트에는 그 하면부에 상부펀치홀더에 의해 지지되면서 고정 설치되는 커팅수단인 초경펀치가 구비되고, 하부금형의 하부플레이트에는 그 상부면으로 하부다이홀더에 의해 지지되도록 설치 고정되는 커팅수단인 다이펀치가 구비되는 구성으로 이루어진다.The conventional electrode processing unit as described above is composed of an upper mold and a lower mold, and the upper plate of the upper mold is provided with a carbide punch, which is a cutting means fixedly installed while being supported by an upper punch holder on the lower surface thereof, and the lower part of the lower mold The plate has a structure in which a die punch, which is a cutting means, is installed and fixed to the upper surface to be supported by the lower die holder.
상기와 같은 종래의 극판가공유닛은 상부펀치홀더에 초경펀치를 설치할 때 상기 상부펀치홀더에 상기 초경펀치가 정밀하게 삽설되도록 와이어커팅으로 삽설구멍을 절삭 가공하고 상기 삽설구멍 내부로 상기 초경펀치를 삽설한 후 상부플레이트를 통해 체결볼트로 체결 고정하는 구조로 되어 있다.The conventional electrode processing unit as described above cuts an insertion hole by wire cutting so that the carbide punch is precisely inserted into the upper punch holder when installing the carbide punch in the upper punch holder, and inserts the carbide punch into the insertion hole After installation, it has a structure that is fastened and fixed with fastening bolts through the upper plate.
이러한 종래의 극판가공유닛은 극판소재가 상기 하부금형의 다이펀치 상부면으로 투입되면 상부금형의 초경펀치가 하강하면서 극판소재의 양단부를 절단하여 그 일단부는 극판의 바닥부인 바텀부가 형성되고, 타단부는 단자가 연결되는 탭부가 형성되는 극판부재를 가공하게 된다.In this conventional electrode processing unit, when the electrode material is input to the upper surface of the die punch of the lower mold, the carbide punch of the upper mold descends and cuts both ends of the electrode material, so that one end is formed with a bottom portion, which is the bottom of the electrode plate, and the other end is to process the electrode plate member in which the tab portion to which the terminal is connected is formed.
한편, 리튬 2차 전지 극판은 알루미늄으로 된 양극집전체 양면에 양극 활물질이 도포된 양극판과, 구리로 된 음극집전체의 양면에 음극 활물질이 도포된 음극판과, 양극판과 음극판의 사이에 개재되어 이들을 전기적으로 절연시키는 분리막으로 구성되며, 양극판, 분리막, 음극판 순으로 다수개를 적층하고 전해액과 함께 밀봉하여 리튬 2차 전지를 제조한다.On the other hand, the lithium secondary battery electrode plate is interposed between a positive electrode plate coated with a positive electrode active material on both sides of a positive electrode current collector made of aluminum, a negative electrode plate coated with a negative electrode active material on both sides of a negative electrode current collector made of copper, and a positive electrode plate and a negative electrode plate. It is composed of a separator that electrically insulates, and a plurality of plates are stacked in the order of a positive electrode plate, a separator film, and a negative electrode plate, and sealed together with an electrolyte to manufacture a lithium secondary battery.
그리고 연속적으로 공급되는 전지 극판을 적당한 길이로 절단하거나 일부를 커팅하기 위해 극판가공유닛인 극판 타발금형을 사용하며, 상기 극판 타발금형은 프레싱 금형으로, 상하부 금형 사이로 스트랩 형상의 극판이 일측에서 연속적으로 투입되면, 상부금형에 구비된 펀치가 하강하면서 극판을 절단한다.In addition, an electrode plate punching mold, which is an electrode plate processing unit, is used to cut continuously supplied battery electrode plates to an appropriate length or to cut a part thereof. When injected, the punch provided in the upper mold descends and cuts the electrode plate.
그런데 극판의 두께가 매우 얇기 때문에 펀치와 펀치홀 사이의 유격이 zero인 상태를 항상 유지해야 하며 이처럼 펀치와 펀치홀 사이의 유격을 최소화해야 하기 때문에 펀치와 펀치홀의 반복적인 상호 마찰로 인해 펀치는 마찰열이 발생하게 되고 이는 펀치의 변형을 가져올 수 있을 뿐 아니라 가공대상, 즉 극판을 열변형시키거나 눌러붙게 만드는 문제가 발생한다. However, since the thickness of the electrode plate is very thin, the gap between the punch and the punch hole must always be maintained at zero, and the gap between the punch and the punch hole must be minimized. This occurs, which not only causes deformation of the punch, but also causes a problem of thermal deformation or sticking of the processing target, that is, the electrode plate.
이를 해결하기 위해 작업 중에 펀치를 일정 온도 이하로 냉각시키도록 등록특허 제10-1943634호 '펀치냉각수단이 구비된 리튬 2차 전지 극판의 타발금형'은 펀치홀더에서 펀치가 관통하는 상부관통홀 하단으로부터 소정 높이에 요홈 형상의 배분유로가 내부면을 따라 둘러 형성되고 상기 배분유로 상에는 일정 간격으로 복수개의 상부미세통공이 하방 형성되며, 상기 배분유로의 상측에는 외부와 연통되어 냉매가 공급되는 냉매공급홀이 형성되고 상기 냉매공급홀로부터 상기 배분유로까지 상기 상부관통홀 내부면을 따라 냉각유로가 형성되어, 상기 냉각유로 및 배분유로를 흐르는 냉매가 상기 상부관통홀에 삽입되는 펀치의 외부면을 냉각시키고 상기 상부미세통공을 통해 하부관통홀로 유입되게 하는 펀치냉각수단이 구비된다. To solve this problem, Registration Patent No. 10-1943634 'Punching mold for electrode plate of lithium secondary battery equipped with a punch cooling means' to cool the punch to a certain temperature or less during operation is the lower part of the upper through hole through which the punch penetrates in the punch holder. A concave-shaped distribution passage is formed along the inner surface at a predetermined height from the distribution passage, and a plurality of upper fine through holes are formed downward at regular intervals on the distribution passage, and the upper side of the distribution passage communicates with the outside to supply refrigerant. A hole is formed and a cooling passage is formed along the inner surface of the upper through hole from the refrigerant supply hole to the distribution passage, so that the refrigerant flowing through the cooling passage and the distribution passage cools the outer surface of the punch inserted into the upper through hole. and a punch cooling means for introducing into the lower through hole through the upper fine through hole.
그러나, 상기 냉매공급홀로부터 배분유로까지 상부관통홀 내부면을 따라 형성된 냉각유로 및 배분유로로 냉매가 흐르는데 냉각유로가 외부로 개방되어 있어 냉매공급홀에서 배출되며 압력이 사라지므로 냉매의 이동 시간이 오래 걸리고, 긴 유로를 가지므로 냉매를 처음 공급한 이후 안정화 시간이 많이 소요되는 단점이 있다.However, the refrigerant flows from the refrigerant supply hole to the distribution passage formed along the inner surface of the upper through hole and the distribution passage. Since the cooling passage is open to the outside, the refrigerant is discharged from the refrigerant supply hole and the pressure disappears, so the movement time of the refrigerant is shortened. Since it takes a long time and has a long flow path, there is a disadvantage in that a long stabilization time is required after supplying the refrigerant for the first time.
또한, 종래의 펀치냉각수단은 냉각유로에 흐르는 냉매가 천천히 이동하여 이물질이 삽입되는 경우 이동이 중지되기도 하고, 무엇보다도 냉매의 이동속도가 늦어 금형의 승하강을 빨리하는 승하강장치와 제어수단이 개발되어도 개선된 펀치의 승하강 속도에 따라 냉매 공급량을 조절하지 못하는 문제가 있었다.In addition, in the conventional punch cooling means, the refrigerant flowing in the cooling passage moves slowly and stops moving when foreign substances are inserted. Even if developed, there was a problem of not being able to adjust the refrigerant supply amount according to the lifting speed of the improved punch.
한편, 종래의 펀치냉각수단이 구비된 리튬 2차 전지 극판의 타발금형에서는 초경으로 이루어지는 펀치와 이를 감싸는 펀치홀더 및 스트리퍼가 스틸로 이루어지고, 직사각형으로 이루어지는 펀치가 삽입되는 펀치홀더 및 스트리퍼에 직사각형의 홀이 형성되어, 복잡한 구조를 갖는 양극판 형성부분에는 사용하기 어려웠다.On the other hand, in the punching mold of a lithium secondary battery electrode plate equipped with a conventional punch cooling means, a punch made of carbide, a punch holder and a stripper surrounding it are made of steel, and a rectangular punch holder and stripper into which a rectangular punch is inserted Holes are formed, making it difficult to use the positive electrode plate formation part having a complicated structure.
[선행기술문헌][Prior art literature]
[특허문헌][Patent Literature]
(특허문헌 1) KR 10-0908573 (등록번호) 2009.07.14.(Patent Document 1) KR 10-0908573 (registration number) 2009.07.14.
(특허문헌 2) KR 10-1691937 (등록번호) 2016.12.27.(Patent Document 2) KR 10-1691937 (registration number) 2016.12.27.
(특허문헌 3) KR 10-1943634 (등록번호) 2019.01.23.(Patent Document 3) KR 10-1943634 (registration number) 2019.01.23.
이에 본 발명은 상기와 같은 문제를 해결하기 위해 안출된 것으로,Accordingly, the present invention has been made to solve the above problems,
냉각을 위한 타발유에 이동 속도를 제어하는 동력을 제공하여 금형의 승하강 속도에 따라 적절한 양의 타발유 공급이 가능한 펀치에서 타발유가 배출되는 전지 극판 절단장치를 제공하는 것이다.It is to provide a battery electrode plate cutting device in which punching oil is discharged from a punch capable of supplying an appropriate amount of punching oil according to the lifting and lowering speed of the mold by providing power to control the moving speed to the punching oil for cooling.
본 발명의 다른 목적은 타발유가 이동하는 작은 이동홀로 인하여 타발유의 이동속도를 제어하지 못하는 경우에도 금형의 승하강 속도에 적합한 원활한 타발유 공급이 이루어져, 초경펀치가 초경다이와 마찰시 발생되는 열을 제거하며, 극판 절단시 발생되는 알루미늄 분진을 방지하는 펀치에서 타발유가 배출되는 전지 극판 절단장치를 제공하는데 그 목적이 있다.Another object of the present invention is to remove heat generated when a cemented carbide punch rubs against a cemented carbide die by providing smooth punching oil suitable for the lifting and lowering speed of the mold even when the moving speed of the punching oil cannot be controlled due to a small moving hole through which the punching oil moves. The purpose is to provide a battery electrode plate cutting device in which punching oil is discharged from a punch that prevents aluminum dust generated during electrode plate cutting.
또한, 본 발명의 또 다른 목적은 상기 초경펀치의 타발유공급홀을 통과해 하부면 또는 측면에 형성된 타발유배출구에서 직접 타발유가 분사되므로 분사유로가 짧아 셋업시간이 적게 걸리며 안정화 시간이 짧은 펀치에서 타발유가 배출되는 전지 극판 절단장치를 제공하는데 있다.In addition, another object of the present invention is to pass through the punching oil supply hole of the carbide punch and directly spray the punching oil from the punching oil outlet formed on the lower or side surface, so that the injection flow path is short, so the setup time is short and the stabilization time is short. It is to provide a battery electrode plate cutting device through which punching oil is discharged.
또한, 본 발명의 다른 목적은 2차 전지의 음극판은 물론 복잡한 양극판 형성 부분에도 사용할 수 있는 펀치에서 타발유가 배출되는 전지 극판 절단장치를 제공하는데 있다.In addition, another object of the present invention is to provide a battery electrode plate cutting device in which punching oil is discharged from a punch that can be used not only for a negative plate of a secondary battery but also for a complex positive plate forming part.
상기 목적을 달성하기 위하여 본 발명은 상부금형과 하부금형 사이로 공급되는 극판소재를 가공하는 전지 극판 절단장치에 있어서, 상기 상부금형(110)을 구성하고, 상부로부터 타발유와 에어를 공급받는 상부플레이트(110a)와; 상기 상부플레이트(110a)의 하부에 배치되며 초경펀치(111)가 고정되는 상부펀치홀더(112)와; 상기 상부펀치홀더(112)의 하부에 배치되며 초경펀치(111)가 관통하며 극판소재를 고정하는 스트리퍼(113)와; 상기 하부금형(120)을 구성하는 하부플레이트(120a)의 상부면에서 극판소재를 안착 절단시키는 초경다이(121)가 고정되는 하부다이홀더(122);를 포함하되; 상기 상부플레이트(110a)에는 타발유가 공급되는 제1타발유삽입홀(114a)과 스크랩 배출을 돕는 배출에어가 공급되는 제1스크랩분사에어홀(114b)이 형성되는 타발유분기블록(114)과, 상기 타발유분기블록(114) 내에 삽입되고 타발유에 분사력을 공급하는 분사에어가 공급되는 타발유분사에어홀(115a)이 형성되는 타발유에어블록(115)과, 상기 타발유분기블록(114) 하부에 배치되고 분사에어와 타발유가 각각 유입되어 결합되는 분기블록베이스(116)가 매립되고; 상기 상부펀치홀더(112)에는 상기 분기블록베이스(116)에서 이송된 분사에어와 결합된 분사타발유를 초경펀치(111)에 형성되는 타발유공급홀(111a)로 공급하는 제3타발유삽입홀(117a)이 형성되는 에어분기블록(117)이 매립설치된다.In order to achieve the above object, the present invention is a battery electrode plate cutting device for processing an electrode plate material supplied between an upper mold and a lower mold, and an upper plate constituting the upper mold 110 and receiving punching oil and air from the upper part (110a) and; an upper punch holder 112 disposed under the upper plate 110a and to which a carbide punch 111 is fixed; a stripper 113 disposed below the upper punch holder 112 and through which the carbide punch 111 penetrates and fixes the electrode plate material; A lower die holder 122 to which a cemented carbide die 121 for seating and cutting an electrode plate material is fixed on the upper surface of the lower plate 120a constituting the lower mold 120; A punching oil branch block 114 having a first punching oil insertion hole 114a through which punching oil is supplied and a first scrap injection air hole 114b through which exhaust air to help scrap discharge is supplied is formed in the upper plate 110a, A punching oil air block 115 inserted into the punching oil branch block 114 and having a punching oil spraying air hole 115a through which spraying air for supplying a spraying force to the punching oil is formed, and a punching oil spraying air block 115 at the bottom of the punching oil branch block 114 The branch block base 116 is buried and the branch block base 116 to which blowing air and punching oil are respectively introduced and coupled is disposed; In the upper punch holder 112, a third punching oil is inserted to supply jetting oil combined with the jetting air transferred from the branch block base 116 to the punching oil supply hole 111a formed in the carbide punch 111. The air branching block 117 in which the hole 117a is formed is buried and installed.
본 발명의 상기 초경펀치(111)는 상기 제3타발유삽입홀(117a)에서 공급받은 분사타발유를 공급받는 타발유공급홀(111a)이 상하를 관통하여 그 하부면에 타발유배출구(111b)가 형성된다.In the carbide punch 111 of the present invention, the punching oil supply hole 111a receiving the injection punching oil supplied from the third punching oil insertion hole 117a passes through the top and bottom, and the punching oil outlet 111b on the lower surface thereof ) is formed.
본 발명의 상기 타발유에어블록(115)의 하면에는 타발유에어블록(115)을 관통하는 타발유분사에어홀(115a)의 끝단에서 분사에어를 다수의 경로로 분리하는 에어분기유로(115c)가 형성되고, 상기 에어분기유로(115c)의 각 분기마다 상기 분기블록베이스(116)의 에어삽입홀(116a)과 연결되어 분사에어가 아래방향으로 이동된다.On the lower surface of the punching air block 115 of the present invention, an air branch passage 115c separating the injection air into multiple paths at the end of the punching oil injection air hole 115a penetrating the punching air block 115 is formed, and each branch of the air branch passage 115c is connected to the air insertion hole 116a of the branch block base 116 so that the jetted air moves downward.
본 발명의 상기 타발유분기블록(114)의 제1타발유삽입홀(114a)은 타발유분기블록(114)의 하면에서 상기 타발유에어블록(115)의 가장자리를 따라 연속적으로 형성된 타발유분기유로(114c)에서 분기블록베이스(116)의 제2타발유삽입홀(116b)로 연결되어 타발유가 아래 방향으로 이동된다.The first punching oil branch passage 114a of the punching oil branch block 114 of the present invention is continuously formed along the edge of the punching oil air block 115 on the lower surface of the punching oil branch block 114 (114c). ) is connected to the second punching oil insertion hole 116b of the branch block base 116, and the punching oil is moved downward.
본 발명의 상기 에어분기블록(117)은 그 하면에 상기 타발유분기블록(114)의 제1스크랩분사에어홀(114b)에서 이송된 배출에어를 분기시키는 에어분기홀(117b)이 더 형성된다.The air branching block 117 of the present invention further has an air branching hole 117b for branching the exhaust air transferred from the first scrap jetting air hole 114b of the punching oil branching block 114 on the lower surface thereof.
본 발명의 상기 타발유분기블록(114)의 제1스크랩분사에어홀(114b)은 분기블록베이스(116)의 제2스크랩분사에어홀(116c)과 연결되고, 상기 제2스크랩분사에어홀(116c)은 상부플레이트(110a)를 관통하여 상기 에어분기홀(117b)과 연결되며, 상기 에어분기홀(117b)은 상부펀치홀더(112)를 관통하여 초경펀치(111)의 제4스크랩분사에어홀(111c)과 연결된다.The first scrap jet air hole 114b of the punching oil branch block 114 of the present invention is connected to the second scrap jet air hole 116c of the branch block base 116, and the second scrap jet air hole 116c ) passes through the upper plate 110a and is connected to the air branch hole 117b, and the air branch hole 117b penetrates the upper punch holder 112 and passes through the upper punch holder 112 to the fourth scrap jet air hole of the carbide punch 111 (111c) is connected.
본 발명의 상기 분기블록베이스(116)는 에어삽입홀(116a)이 관통형성되어 분사에어가 이동되고, 상기 제2타발유삽입홀(116b)이 에어삽입홀(116a) 방향으로 경사지게 형성되어 타발유가 이동되며, 에어삽입홀(116a)과 제2타발유삽입홀(116b)이 상기 분기블록베이스(116)의 내부에서 결합되는 제1타발유배출홀(116d)에서 분사타발유가 형성된다.In the branch block base 116 of the present invention, the air insertion hole 116a is formed through and the injection air is moved, and the second punching oil insertion hole 116b is formed obliquely in the direction of the air insertion hole 116a for punching. Oil is moved, and jetting oil is formed in the first punching oil discharge hole 116d where the air insertion hole 116a and the second punching oil insertion hole 116b are coupled inside the branch block base 116.
본 발명의 상기 분기블록베이스(116)는 상기 제2타발유삽입홀(116b)이 관통형성되어 타발유가 이동되고, 상기 에어삽입홀(116a)이 제2타발유삽입홀(116b) 방향으로 경사지게 형성되어 분사에어가 이동되며, 에어삽입홀(116a)과 제2타발유삽입홀(116b)이 상기 분기블록베이스(116)의 내부에서 결합되는 제1타발유배출홀(116d)에서 분사타발유가 형성된다.In the branch block base 116 of the present invention, the second punching oil insertion hole 116b is formed through and the punching oil is moved, and the air insertion hole 116a is inclined in the direction of the second punching oil insertion hole 116b. air is formed and the jetted air is moved, and the jetted punching oil is generated in the first punching oil discharge hole 116d where the air insertion hole 116a and the second punching oil insertion hole 116b are coupled inside the branch block base 116. is formed
본 발명의 상기 초경펀치(111)는 상기 제3타발유삽입홀(117a)에서 공급받은 분사타발유를 공급받는 타발유공급홀(111a)이 내부를 이동하다가 그 측면에 타발유배출구(111b)가 형성된다.In the carbide punch 111 of the present invention, the punching oil supply hole 111a receiving the injection punching oil supplied from the third punching oil insertion hole 117a moves inside and the punching oil outlet 111b on the side thereof is formed
본 발명의 상기 타발유분기블록(114)과 타발유에어블록(115)은 동일 평면상으로 배치되고, 상기 타발유에어블록(115)은 그 하부에 배치되는 분기블록베이스(116)와 그 외곽형상이 동일하다.The punching oil branch block 114 and the punching oil air block 115 of the present invention are arranged on the same plane, and the punching oil air block 115 has a branch block base 116 and its outer shape disposed below it. this is the same
따라서, 본 발명의 펀치에서 타발유가 배출되는 전지 극판 절단장치는 냉각을 위한 타발유에 이동 속도를 제어하는 동력을 제공하여 금형의 승하강 속도에 따라 적절한 양의 타발유 공급이 가능한 효과가 있다.Therefore, the battery electrode plate cutting device in which punching oil is discharged from the punch of the present invention has an effect of supplying an appropriate amount of punching oil according to the lifting and lowering speed of the mold by providing power to control the moving speed to the punching oil for cooling.
또한, 본 발명은 타발유가 이동하는 작은 이동홀로 인하여 타발유의 이동속도를 제어하지 못하는 경우에도 금형의 승하강 속도에 적합한 원활한 타발유 공급이 이루어져, 초경펀치가 초경다이와 마찰시 발생되는 열을 제거하며, 극판 절단시 발생되는 알루미늄 분진을 방지하는 장점이 있다.In addition, in the present invention, even when the moving speed of punching oil cannot be controlled due to a small moving hole through which punching oil moves, smooth punching oil supply suitable for the lifting and lowering speed of the mold is achieved, removing heat generated when the carbide punch rubs with the carbide die, , it has the advantage of preventing aluminum dust generated during electrode plate cutting.
그리고, 본 발명은 초경펀치의 타발유공급홀을 통과해 하부면 또는 측면에 형성된 타발유배출구에서 직접 타발유가 분사되므로 분사유로가 짧아 셋업시간이 적게 걸리며 안정화 시간이 짧은 효과가 있다.In addition, since the punching oil is injected directly from the punching oil outlet formed on the bottom or side surface of the carbide punch through the punching oil supply hole of the carbide punch, the injection flow path is short, so the setup time is short and the stabilization time is short.
또한, 본 발명은 2차 전지의 음극판은 물론 복잡한 양극판 형성 부분에도 사용할 수 있는 효과도 있다.In addition, the present invention has an effect that can be used not only for a negative electrode plate of a secondary battery but also for a complicated positive electrode plate forming part.
도 1은 본 발명의 실시 예에 따른 펀치에서 타발유가 배출되는 전지 극판 절단장치의 개략적인 사시상태도이고,1 is a schematic perspective state view of a battery electrode plate cutting device in which punching oil is discharged from a punch according to an embodiment of the present invention;
도 2는 본 발명의 실시 예에 따른 펀치에서 타발유가 배출되는 전지 극판 절단장치의 분리사시도이고,2 is an exploded perspective view of a battery electrode plate cutting device in which punching oil is discharged from a punch according to an embodiment of the present invention;
도 3은 본 발명의 실시 예에 따른 펀치에서 타발유가 배출되는 전지 극판 절단장치에서 상부플레이트에 매립되는 타발유에어블록, 타발유분기블록, 분기블록베이스가 분리된 상태를 상부에서 바라본 사시도이고,3 is a perspective view from above of a state in which a punched oil air block, a punched oil branch block, and a branch block base embedded in an upper plate are separated from a battery electrode plate cutting device in which punched oil is discharged from a punch according to an embodiment of the present invention,
도 4는 본 발명의 실시 예에 따른 펀치에서 타발유가 배출되는 전지 극판 절단장치에서 상부플레이트에 매립되는 타발유에어블록, 타발유분기블록, 분기블록베이스가 분리된 상태를 하부에서 바라본 사시도이고,4 is a perspective view of a state in which a punched oil air block, a punched oil branch block, and a branch block base embedded in an upper plate are separated from a battery electrode plate cutting device in which punched oil is discharged from a punch according to an embodiment of the present invention, viewed from the bottom,
도 5는 본 발명의 실시 예에 따른 타발유에어블록, 타발유분기블록, 분기블록베이스의 분리사시도이고,5 is an exploded perspective view of a punching oil block, a punching oil branch block, and a branch block base according to an embodiment of the present invention;
도 6은 본 발명의 실시 예에 따른 타발유에어블록의 사시도이고,6 is a perspective view of a punching-oiled air block according to an embodiment of the present invention;
도 7은 본 발명의 실시 예에 따른 타발유분기블록의 사시도이고,7 is a perspective view of a punched oil branch block according to an embodiment of the present invention;
도 8은 본 발명의 실시 예에 따른 분기블록베이스의 사시도이고,8 is a perspective view of a branch block base according to an embodiment of the present invention;
도 9는 본 발명의 실시 예에 따른 에어분기블록의 사시도이고,9 is a perspective view of an air branching block according to an embodiment of the present invention;
도 10은 본 발명의 실시 예에 따른 타발유분기블록과 분기블록베이스가 결합되는 상태를 나타낸 분리사시도이고,10 is an exploded perspective view showing a state in which a punched oil branch block and a branch block base are coupled according to an embodiment of the present invention;
도 11은 본 발명의 실시 예에 따른 타발유에어블록과 분기블록베이스가 결합되는 상태를 나타낸 분리사시도이고,11 is an exploded perspective view showing a state in which a punching air block and a branch block base are coupled according to an embodiment of the present invention;
도 12는 본 발명의 실시 예에 따른 에어분기블록과 초경펀치가 결합되는 상태를 나타낸 분리사시도이고,12 is an exploded perspective view showing a state in which an air branching block and a carbide punch are coupled according to an embodiment of the present invention;
도 13은 본 발명의 실시 예에 따라 펀치에서 타발유가 배출되는 전기 극판 절단장치에서 타발유와 에어가 공급되어 초경펀치의 하부면에서 배출되는 상태를 나타낸 단면도이고,13 is a cross-sectional view showing a state in which punching oil and air are supplied and discharged from the lower surface of a carbide punch in an electric electrode plate cutting device in which punching oil is discharged from a punch according to an embodiment of the present invention,
도 14는 본 발명의 다른 실시 예에 따른 초경펀치의 사시도이고,14 is a perspective view of a carbide punch according to another embodiment of the present invention,
도 15는 본 발명의 다른 실시예에 따라 펀치에서 타발유가 배출되는 전기 극판 절단장치에서 타발유와 에어가 공급되어 초경펀치의 측면에서 배출되는 상태를 나타낸 단면도이다.15 is a cross-sectional view showing a state in which punching oil and air are supplied and discharged from the side of a carbide punch in an electric electrode plate cutting device in which punching oil is discharged from a punch according to another embodiment of the present invention.
이하, 본 발명의 바람직한 실시 예를 첨부한 도면을 참조하여 당해 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 설명한다.Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described so that those skilled in the art can easily implement it.
본 발명은 연속적으로 공급되는 극판소재를 상하 승강하면서 절단하는 상부금형(110)과, 상기 상부금형(110)의 하부측에 구비되어 공급되는 극판소재가 절단가능하도록 안착시켜 주는 하부금형(120) 사이로 극판소재가 공급되면 상부금형의 펀치가 승강하면서 극판을 가공하는 펀치에서 타발유가 배출되는 전지 극판 절단장치(100)에 있어서, 도 1 내지 도 15에 도시된 바와 같이, The present invention is an upper mold 110 that cuts continuously supplied electrode plate material while moving up and down, and a lower mold 120 provided on the lower side of the upper mold 110 and seated so that the supplied electrode material can be cut In the battery electrode plate cutting device 100 in which punching oil is discharged from the punch processing the electrode plate while the punch of the upper mold moves up and down when electrode material is supplied therebetween, as shown in FIGS. 1 to 15,
상기 상부금형(110)을 구성하고, 상부로부터 타발유와 에어를 공급받는 상부플레이트(110a)와;an upper plate 110a constituting the upper mold 110 and receiving punching oil and air from the upper part;
상기 상부플레이트(110a)의 하부에 배치되며 초경펀치(111)가 고정되는 상부펀치홀더(112)와;an upper punch holder 112 disposed under the upper plate 110a and to which a carbide punch 111 is fixed;
상기 상부펀치홀더(112)의 하부에 배치되며 초경펀치(111)가 관통하며 극판소재를 고정하는 스트리퍼(113)와;a stripper 113 disposed below the upper punch holder 112 and through which the carbide punch 111 penetrates and fixes the electrode plate material;
상기 하부금형(120)을 구성하는 하부플레이트(120a)의 상부면에서 극판소재를 안착 절단시키는 초경다이(121)가 고정되는 하부다이홀더(122);를 포함하되;A lower die holder 122 to which a cemented carbide die 121 for seating and cutting an electrode plate material is fixed on the upper surface of the lower plate 120a constituting the lower mold 120;
상기 상부플레이트(110a)에는 타발유가 공급되는 제1타발유삽입홀(114a)과 스크랩 배출을 돕는 배출에어가 공급되는 제1스크랩분사에어홀(114b)이 형성되는 타발유분기블록(114)과, 상기 타발유분기블록(114)에 삽입되고 타발유에 분사력을 공급하는 분사에어가 공급되는 타발유분사에어홀(115a)이 형성되는 타발유에어블록(115)과, 상기 타발유분기블록(114) 하부에 배치되고 분사에어와 타발유가 각각 유입되어 결합되는 분기블록베이스(116)가 매립되고;A punching oil branch block 114 having a first punching oil insertion hole 114a through which punching oil is supplied and a first scrap injection air hole 114b through which exhaust air to help scrap discharge is supplied is formed in the upper plate 110a, A punching oil air block 115 inserted into the punching oil branch block 114 and having a punching oil spraying air hole 115a through which spraying air for supplying a spraying force to the punching oil is formed, and the punching oil branch block 114 below The branch block base 116 is buried and the branch block base 116 to which blowing air and punching oil are respectively introduced and coupled is disposed;
상기 상부펀치홀더(112)에는 상기 분기블록베이스(116)에서 이송된 분사에어와 결합된 분사타발유를 초경펀치(111)에 형성되는 타발유공급홀(111a)로 공급하는 제3타발유삽입홀(117a)과, 상기 타발유분기블록(114)의 제1스크랩분사에어홀(114b)에서 이송된 배출에어를 분기시키는 에어분기홀(117b)이 하면에 형성되는 에어분기블록(117)이 매립설치된다.In the upper punch holder 112, a third punching oil is inserted to supply jetting oil combined with the jetting air transferred from the branch block base 116 to the punching oil supply hole 111a formed in the carbide punch 111. The hole 117a and the air branching hole 117b branching the exhaust air transferred from the first scrap jetting air hole 114b of the punched oil branching block 114 are formed on the lower surface of the air branching block 117 is buried. installed
본 발명은 상부금형으로 타발유와 에어를 공급하고, 이를 초경금속에서 배출하기 전에 서로 결합시켜 타발유의 이동속도와 이동량을 제어할 수 있으며, 이와 별도로 극판을 가공한 이후에 극판소재에서 절단된 스크랩(scrap)의 배출을 보조하는 별도의 에어를 상부금형에서 공급받는다. 용어의 혼동을 피하기 위하여 상부금형으로 공급되는 타발유와 에어의 결합전 공정을 지칭하는 경우에 ‘타발유’및 ‘에어’라 한다. '에어'에는 타발유와 결합하여 타발유 공급 속도를 제공하는 에어와 스크랩을 분리시키기 위한 에어가 각각 별도로 공급받고 별도의 유로를 따라 이동하며, 전체를 통합하여 설명하는 경우에는 ‘에어’로 표기하고, 타발유와 결합되는 에어만을 지칭하는 경우에는 ‘분사에어’라 하며, 스크랩을 분리시키기 위한 에어만을 지칭하는 경우에는 ‘배출에어’라 한다. 또한, 분사에어와 결합된 이후의 타발유를 ‘분사타발유’라 지칭한다. The present invention supplies punching oil and air to the upper mold, and combines them before discharging them from the cemented carbide to control the movement speed and amount of punching oil. Separately, after processing the electrode plate, scraps cut from the electrode plate material Separate air to assist in the discharge of scrap is supplied from the upper mold. In order to avoid confusion of terms, it is referred to as 'punching oil' and 'air' when referring to the process before combining punching oil and air supplied to the upper mold. 'Air' is combined with punching oil to provide punching oil supply speed, and air to separate scrap is separately supplied and moved along a separate flow path. When referring only to air combined with punching oil, it is referred to as 'injection air', and when referring to only air for separating scrap, it is referred to as 'exhaust air'. In addition, punching oil after being combined with jet air is referred to as 'jet punching oil'.
‘극판소재’는 상부금형의 하강에 의하여 펀치가 절단하기 이전까지이고, 펀치에 의해 절단된 이후부터는 ‘극판’이라 한다. 또한 극판에서 돌출부가 있는 경우를 ‘양극판’돌출부가 없는 경우를 ‘음극판’으로 한다.The ‘electrode material’ is until the punch cuts it by the lowering of the upper mold, and after being cut by the punch, it is called the ‘electrode plate’. In addition, the case where there is a protrusion in the electrode plate is called 'positive plate', and the case where there is no protrusion is called 'negative electrode plate'.
본 발명은 음극판을 물론 양극판에도 타발유를 필요한 양과 속도로 제공할 수 있는 장점이 있으며, 보다 복잡한 구조의 양극판을 위주로 도시하고 설명하나 이에 한정된 것은 아니다.The present invention has the advantage of providing punching oil in a necessary amount and speed to both the negative plate and the positive plate, and mainly shows and describes a more complex structure of the positive plate, but is not limited thereto.
한편, 본 발명은 전기자동차용 배터리 이외에 핸드폰 배터리, 하이브리드용 배터리, 기타 전지, 차세대 전지(전고체, 리튬메탈, 리튬황, 수소전지 등)등 다양한 분야의 배터리 극판 제조용 금형에서 사용할 수 있다.Meanwhile, the present invention can be used in molds for manufacturing battery electrode plates in various fields such as cell phone batteries, hybrid batteries, other batteries, and next-generation batteries (all-solid, lithium metal, lithium sulfur, hydrogen batteries, etc.) in addition to batteries for electric vehicles.
상기 상부금형(110)은 상하 승강하면서 연속적으로 유입되는 극판소재를 가합하여 절단하도록 하고, 상기 하부금형(120)은 상부금형(110)의 하부측에 구비되어 상부금형(110)와 맞물려 극판소재가 절단되도록 안착시켜준다. 상기 상부금형(110)을 구성하는 상부플레이트(110a)와 하부금형(120)을 구성하는 하부플레이트(120a)는 펀치와 다이를 정확하게 맞추기 위한 다수의 메인 가이드포스트(110b)에 의해 상하로 연결된다.The upper mold 110 joins and cuts the electrode material continuously introduced while moving up and down, and the lower mold 120 is provided on the lower side of the upper mold 110 and engages with the upper mold 110 to cut the electrode material is set to be cut. The upper plate 110a constituting the upper mold 110 and the lower plate 120a constituting the lower mold 120 are vertically connected by a plurality of main guide posts 110b to accurately align punches and dies. .
이와 같이 상기 상부금형(110)과 하부금형(120)은 메인 가이드포스트(110b)에 의해 상하로 연결된 구조를 가져 상기 하부금형(120)이 고정된 상태에서 상부금형(110)이 하강하면서 공급된 극판소재를 초경펀치(111)가 하부금형의 초경다이(121)과 맞물려 펀칭하면서 절단하는 구조이다.In this way, the upper mold 110 and the lower mold 120 have a structure connected vertically by the main guide post 110b, so that the upper mold 110 is lowered while the lower mold 120 is fixed. It is a structure in which the carbide punch 111 engages with the carbide die 121 of the lower mold to cut the electrode plate material while punching it.
상기 상부금형(110)과 하부금형(120) 사이로 극판소재가 공급되고, 상부금형(110)의 초경펀치(111)가 승강하면서 극판소재의 양단부를 절단하여 가공하되, 일단부는 극판의 바닥부인 바텀부(음극판)가 형성되고 타단부는 단자가 연결되는 탭부(양극판)가 형성된다. 이에 상기 상부금형(110)에는 바텀초경펀치와 탭초경펀치로 구분되어 각각 설치된다.The electrode material is supplied between the upper mold 110 and the lower mold 120, and both ends of the electrode material are cut and processed while the carbide punch 111 of the upper mold 110 moves up and down, and one end is the bottom of the electrode plate. A portion (negative electrode plate) is formed, and the other end is formed with a tab portion (positive electrode plate) to which terminals are connected. Accordingly, the upper mold 110 is divided into a bottom carbide punch and a tap carbide punch, respectively, and installed.
본 발명에서는 탭초경펀치가 극판소재에서 돌출형성되는 양극부분인 탭부를 가공 절단하기 위해서는 두 개의 초경펀치(111)로 분할되어 이격형성되고, 상기 초경펀치(111) 상부면을 상부펀치홀더(112)가 고정하고, 주변부를 스트리퍼(113)가 잡아주며 결합설치된다. 상기 초경펀치(111)는 하나로 구비될 수 있고, 본 발명은 이를 배제하지 않는다.In the present invention, in order to process and cut the tab portion, which is the anode portion where the tab carbide punch protrudes from the electrode plate material, it is divided into two carbide punches 111 and formed spaced apart, and the upper surface of the carbide punch 111 is placed in an upper punch holder 112 ) is fixed, and the stripper 113 holds the periphery and is installed in combination. The carbide punch 111 may be provided as one, and the present invention does not exclude this.
상기 상부플레이트(110a) 하부에 결합된 상부펀치홀더(112)와 하부플레이트(120a) 상부에 결합된 하부다이홀더(122) 사이에서 초경펀치(111)를 설치하기 위해 상부펀치홀더(112)와 하부다이홀더(122) 사이에는 다수의 서브 가이드포스트(110f)가 결합되고, 상기 서브 가이드포스트(110f)에 의해 상부펀치홀더(112)는 탄성지지되며, 상기 상부펀치홀더(112)의 정확한 하강을 안내하고 복귀를 수행하게 된다. 이에 상기 하부다이홀더(122)에 형성된 초경다이(121)와 상부펀치홀더(112)에 형성된 초경펀치(111)가 밀착된 상태로 절단작업이 이루어지게 된다.The upper punch holder 112 and A plurality of sub guide posts 110f are coupled between the lower die holders 122, and the upper punch holder 112 is elastically supported by the sub guide posts 110f, and the upper punch holder 112 is accurately lowered. and perform the return. Accordingly, the cutting operation is performed while the carbide die 121 formed in the lower die holder 122 and the carbide punch 111 formed in the upper punch holder 112 are in close contact with each other.
상기 초경펀치(111)가 승강하면서 극판소재를 절단할 때 하부금형(120)의 초경다이(121)와 반복적인 상호 마찰로 인해 마찰열이 발생되며, 온도가 상승하게 된다. 이는 초경펀치(111)의 변형을 가져올 뿐만 아니라 극판의 열 변형이 발생될 수 있으므로, 상기 초경펀치(111)와 초경다이(121)가 마찰시 발생되는 마찰열을 제거하고, 절단시 발생되는 알루미늄 분진을 방지하기 위해 타발유를 공급한다. 상기 타발유는 점성이 있어서 작은 공급홀(공급홀이 크면 타발유의 양이 너무 많아지는 문제가 있다)을 통해 신속한 이동이 어렵고, 이물질이 공급홀 내로 유입될 경우에 타발유의 공급이 불가능하거나 매우 적게 공급되는 문제가 발생한다. 이러한 경우에는 금형 전체를 분해하여 이물질을 제거하여야 하는 어려움이 있다. 이를 해결하기 위하여 본 발명은 타발유를 적절하게 밀어주는 동력원을 제공하기 위해 분사에어를 공급한다. 분사에어는 콤프레샤에 의하여 그 공급양을 쉽게 제어할 수 있어 원하는 양과 속도의 타발율를 극판소재에 제공할 수 있다. 타발유가 단독으로 공급이 원활할 때는 분사에어를 공급하지 않을 수도 있다.When the carbide punch 111 moves up and down while cutting the electrode plate material, frictional heat is generated due to repeated mutual friction with the carbide die 121 of the lower mold 120, and the temperature rises. This not only causes deformation of the cemented carbide punch 111, but also thermal deformation of the electrode plate, thereby removing frictional heat generated when the carbide punch 111 and the carbide die 121 rub against each other, and aluminum dust generated during cutting. To prevent this, punching oil is supplied. Since the punching oil is viscous, it is difficult to move quickly through a small supply hole (if the supply hole is large, the amount of punching oil becomes too large), and when foreign substances flow into the supply hole, the supply of punching oil is impossible or very small. There is a supply problem. In this case, there is a difficulty in disassembling the entire mold to remove foreign substances. In order to solve this problem, the present invention supplies blowing air to provide a power source that appropriately pushes punching oil. The amount of blown air can be easily controlled by the compressor, so that the punching rate of the desired amount and speed can be provided to the electrode material. Jet air may not be supplied when punching oil is supplied smoothly alone.
이와 같이 본 발명은 상부플레이트(110a) 상부에서 타발유를 초경펀치(111)까지 원활하게 공급하기 위한 에어투입라인, 즉 에어공급부(140)와, 타발유투입라인, 즉 타발유공급부(130)가 각각 구비되어 중간분기지점에서 만나 결합되어 빠르게 이동하며 초경펀치(111)로 공급된다. 이때, 에어공급부(140)와 타발유공급부(130)는 반대로 각각 타발유와 분사에어의 위치를 변경하여도 동일한 효과를 갖는다. 타발유 공급이 단독으로 원활한 경우에는 분사에어의 공급을 중지하고 타발유공급부(130)만 작동하여 타발유만을 투입할 수 있다.As described above, the present invention is an air input line for smoothly supplying punching oil from the top of the upper plate 110a to the carbide punch 111, that is, an air supply unit 140, and a punching oil input line, that is, a punching oil supply unit 130 are each provided, meet at the intermediate branch point, are coupled, move quickly, and are supplied to the cemented carbide punch 111. At this time, the air supply unit 140 and the punching oil supply unit 130 have the same effect even if the positions of the punching oil and the jetting air are changed. When the supply of punching oil is smooth alone, the supply of jetting air may be stopped and only the punching oil supply unit 130 may be operated to input only punching oil.
한편, 상기 초경펀치(111)에서 분사에어와 결합된 분사타발유가 공급되는 타발유공급홀(111a)은 도 12에 도시된 바와 같이 초경펀치(111)를 관통하여 그 하부면에 타발유배출구(111b)를 형성시켜, 분사타발유가 초경펀치(111)의 하부면에서 배출되게 할 수 있다. 또한, 도 14에 도시된 바와 같이 초경펀치(111)를 관통하여 내려오다가 그 측면에 타발유배출구(111b)를 형성시켜 초경펀치(111)의 측면에서 분사타발유가 배출되게 할 수 있다. On the other hand, the punching oil supply hole 111a through which the jetted punching oil combined with the jetted air from the carbide punch 111 is supplied passes through the carbide punch 111 as shown in FIG. 111b) can be formed so that the blasting oil can be discharged from the lower surface of the cemented carbide punch 111. In addition, as shown in FIG. 14, after penetrating the carbide punch 111, the punching oil discharge port 111b is formed on the side of the carbide punch 111 so that the injection punching oil can be discharged from the side of the carbide punch 111.
상기 초경펀치(111)에는 극판소재가 타발되는 구간을 따라 타발유공급홀(111a)이 형성되고, 타발유공급홀(111a)의 갯수는 설계에 따라 변환가능하며, 도면상에서는 하나의 초경펀치(111)에 6~7개의 타발유공급홀(111a)과 타발유배출구(111b)가 형성된다.In the carbide punch 111, punching oil supply holes 111a are formed along the section where the electrode material is punched, and the number of punching oil supply holes 111a can be changed according to the design, and in the drawing, one carbide punch ( 111), 6 to 7 punching oil supply holes 111a and a punching oil outlet 111b are formed.
상기 초경펀치(111)는 극판까지 분사타발유를 공급하는 타발유공급홀(111a)이 형성되고, 상기 타발유배출구(111b)까지 개방된 공간이 없으므로 분사에어와 결합된 분사타발유를 빠르게 배출할 수 있다.The carbide punch 111 has a punching oil supply hole 111a for supplying sprayed punching oil to the electrode plate, and since there is no open space up to the punching oil outlet 111b, the sprayed punching oil combined with the sprayed air is quickly discharged. can do.
한편, 상기 스트리퍼(113)에는 초경펀치(111)의 일부가 돌출되며 초경펀치(111)가 슬라이딩 가능하도록 구비된다.Meanwhile, a part of the carbide punch 111 protrudes from the stripper 113 and the carbide punch 111 is slidably provided.
상기 상부금형(110)이 하강하면 초경펀치(111)가 상부펀치홀더(112)의 하부면에 결합된 상태에서 상부펀치홀더(112)와 같이 하강하고 동시에 스트리퍼(113)도 하강하여 극판소재를 가압하여 고정시킨다. 이때, 상기 스트리퍼(113)의 하부면과 동일 평면상에 배치되어 있던 초경펀치(111)가 스트리퍼(113)의 하측으로 계속 하강하면서 하부다이홀더(122)의 펀치홀로 삽입되어 극판소재를 펀칭, 절단한다.When the upper mold 110 descends, the carbide punch 111 descends together with the upper punch holder 112 while being coupled to the lower surface of the upper punch holder 112, and at the same time the stripper 113 also descends to cut the electrode material. pressurize to fix. At this time, the carbide punch 111 disposed on the same plane as the lower surface of the stripper 113 continues to descend to the lower side of the stripper 113 and is inserted into the punch hole of the lower die holder 122 to punch the electrode material, Cut it.
상기 상부플레이트(110a)의 하부에 배치되는 스트리퍼(113)는 스틸로 이루어지고, 극판소재를 고정하되, 초경펀치(111)가 극판소재를 절단하고 나서 위로 올라갈 때 극판소재를 상기 초경펀치(111)로부터 쉽게 떨어져 상부측으로 올라가는 것을 막아 준다. 상기 스트리퍼(113)는 상부플레이트(110a)에서 연장되어 설치되는 서브 가이드포스트(110f)에 의해 탄성적으로 슬라이딩 가능하도록 구비된다. 이는 상기 상부플레이트(110a)가 통상의 유압 또는 공압 실린더와 같은 통상의 구동수단(미도시) 등에 의해 상하 승강될 때 탄성력으로 극판소재를 눌러 상부측으로 올라가지 못하도록 제어한다.The stripper 113 disposed under the upper plate 110a is made of steel and fixes the electrode plate material, but when the carbide punch 111 cuts the electrode plate material and goes up, the electrode plate material is cut by the carbide punch 111 ) and prevents it from rising to the upper side. The stripper 113 is provided so as to be slid elastically by a sub guide post 110f extending from the upper plate 110a. When the upper plate 110a is moved up and down by a conventional driving means (not shown) such as a conventional hydraulic or pneumatic cylinder, the electrode plate material is pressed with an elastic force to prevent it from rising upward.
이와 같이 상기 상부플레이트(110a), 초경펀치(111), 상부펀치홀더(112) 및 스트리퍼(113)가 상부금형(110)을 구성하고, 상기 하부플레이트(120a), 초경다이(121), 하부다이홀더(122)가 하부금형(120)을 구성한다.As such, the upper plate 110a, the carbide punch 111, the upper punch holder 112, and the stripper 113 constitute the upper mold 110, and the lower plate 120a, the carbide die 121, the lower The die holder 122 constitutes the lower mold 120 .
한편, 상기 상부플레이트(110a) 상부에는 분기블록삽입홈(110c)이 형성되고, 상기 분기블록삽입홈(110c)으로 타발유공급부(130)와 연결되어 타발유가 공급되는 타발유분기블록(114)와 에어공급부(140)와 연결되어 분사에어가 공급되는 타발유에어블록(115)이 동일 평면(동일 높이)상에 배치되고, 타발유분기블록(114)과 타발유분기블록(114) 하부에 타발유와 분사에어가 결합되는 분기블럭베이스(116)가 삽입된다.On the other hand, a branching block insertion groove 110c is formed on the top of the upper plate 110a, and is connected to the punching oil supply unit 130 through the branching block insertion groove 110c to supply the punching oil branch block 114 and The punching oil air block 115 connected to the air supply unit 140 and supplied with jetting air is disposed on the same plane (same height), and the punching oil block 114 and the punching oil block 114 are disposed below the punching oil block 114. A branch block base 116 to which blowing air is coupled is inserted.
이와 같이 상기 상부플레이트(110a)에는 도 3 내지 5와 같이, 타발유가 공급되는 제1타발유삽입홀(114a)과 스크랩 배출을 돕는 배출에어가 공급되는 제1스크랩분사에어홀(114b)이 형성되는 타발유분기블록(114)과, 상기 타발유분기블록(114)과 동일 평면상에 배치되되 타발유분기블록(114) 내부의 중공인 에어블록삽입홈(114d)에 삽입되고 타발유 이동의 동력원을 제공하는 분사에어가 공급되는 타발유분사에어홀(115a)이 형성되는 타발유에어블록(115)과, 상기 타발유분기블록(114) 하부에 배치되고 분사에어와 타발유가 결합되는 분기블록베이스(116)가 매립된다. 따라서, 내부에 타발유분기블록(114)가 삽입되는 타발유에어블록(115)과 그 하부에서 단독으로 배치되는 분기블록베이스(116)는 그 외곽 형상이 동일하다.As shown in FIGS. 3 to 5, the upper plate 110a is formed with a first punching oil insertion hole 114a through which punching oil is supplied and a first scrap spraying air hole 114b through which exhaust air to help discharge scrap is supplied. The punching oil branch block 114, which is disposed on the same plane as the punched oil branch block 114, is inserted into the hollow air block insertion groove 114d inside the punched oil branch block 114 and provides a power source for punching oil movement. The punching oil air block 115 in which the punching oil injection air hole 115a through which the injection air is supplied is formed, and the branching block base 116 disposed below the punching oil branch block 114 and combining the injection air and the punching oil is landfilled Therefore, the outer shape of the punching oil block 115 into which the punching oil branch block 114 is inserted and the branch block base 116 arranged alone at the bottom thereof are the same.
상기 타발유분기블록(114)은 도 7과 같이, 상부면에서 하부면까지 관통형성되는 제1타발유삽입홀(114a)이 하면에 형성되는 타발유분기유로(114c)와 만나 타발유분기블록(114)의 주변부에서 타발유가 분기된다. 상기 타발유분기유로(114c)는 타발유분기블록(114)의 하면에서 상기 타발유에어블록(115)의 가장자리를 따라 연속적으로 형성된다. 상기 타발유분기유로(114c)에서 이동하는 타발유는 펌프(미도시)에 의하여 강하게 타발유공급부(130)로 공급되어도 동일 평면상으로 형성된 상기 타발유분기유로(114c)을 이동하면서 이동력이 약화되어 별도의 동력원이 없으면 천천히 이동할 수밖에 없다.As shown in FIG. 7, in the punching oil branch block 114, the first punched oil insertion hole 114a penetrating from the upper surface to the lower surface meets the punched oil branch passage 114c formed on the lower surface of the punched oil branch block 114 At the periphery of the punching oil is diverged. The punching oil branch passage 114c is continuously formed along the edge of the punching oil air block 115 on the lower surface of the punching oil branch block 114. Even if the punching oil moving in the punching oil branch passage 114c is strongly supplied to the punching oil supply unit 130 by a pump (not shown), the moving force is weakened while moving the punching oil branch passage 114c formed on the same plane. Without a separate power source, it has no choice but to move slowly.
상기 타발유분기블록(114)에 삽입되는 타발유에어블록(115)은 도 6과 같이, 상부면에서 하면까지 관통형성되는 타발유분사에어홀(115a)이 하면에 형성되는 에어분기유로(115c)와 연결되어 다수개로 분기된다. 상기 에어분기유로(115c)는 타발유에어블록(115)의 하면에서 방사상으로 형성된다. 상기 에어분기유로(115c)에서 이동하는 분사에어는 콤프레샤(미도시)를 제어하여 적절한 압력으로 에어공급부(140)로 공급되며 타발유분사에어홀(115a) 및 동일 평면상으로 형성된 에어분기유로(115c)을 지나면서도 계속적인 가압력을 유지할 수 있어, 분기블록베이스(116)에서 결합하는 분사타발유에 필요에 따른 적절한 이동력을 제공할 수 있다.As shown in FIG. 6, the punching oil air block 115 inserted into the punching oil branch block 114 has an air branch passage 115c in which punching oil injection air holes 115a penetrating from the upper surface to the lower surface are formed on the lower surface. It is connected with and branched into multiple branches. The air branch passage 115c is radially formed on the lower surface of the punching oil air block 115. The injection air moving in the air branch passage 115c is supplied to the air supply unit 140 at an appropriate pressure by controlling a compressor (not shown), and the punching oil injection air hole 115a and the air branch passage formed on the same plane ( 115c), it is possible to maintain a continuous pressing force, so that an appropriate moving force according to the need can be provided to the injection punching oil coupled in the branch block base 116.
상기 분기블록베이스(116)는 도 5 및 8과 같이, 상부에서 타발유분기블록(114)과 타발유에어블록(115)이 결합되고, 직선방향으로 관통되는 에어삽입홀(116a)과, 상기 에어삽입홀(116a) 방향으로 하향경사지는 제2타발유삽입홀(116b)이 형성되며, 내부에서 상기 에어삽입홀(116a)과 제2타발유삽입홀(116b)이 만나 하나의 제1타발유배출홀(116d)이 형성된다.As shown in FIGS. 5 and 8, the branching block base 116 has an air insertion hole 116a through which a punching oil branch block 114 and a punching oil air block 115 are coupled from the top, and penetrates in a linear direction, and the air A second punching oil insertion hole 116b inclined downward in the direction of the insertion hole 116a is formed, and the air insertion hole 116a and the second punching oil insertion hole 116b meet inside to form one first punching oil insertion hole 116b. A discharge hole 116d is formed.
이에 상기 타발유에어블록(115)의 타발유분사에어홀(115a)은 도 11과 같이, 에어분기유로(115c)를 통해 다수개로 분기되고, 그 분기된 가지마다 분기블록베이스(116)의 에어삽입홀(116a)과 연결되어 분사에어가 이동되고, 상기 타발유분기블록(114)의 제1타발유삽입홀(114a)은 타발유분기블록(114)의 하부면에서 타발유에어블록(115)의 가장자리를 따라 형성된 타발유분기유로(114c)에서 분기블록베이스(116)의 제2타발유삽입홀(116b)로 연결되어 타발유가 이동된다. 상기 에어삽입홀(116a)과 제2타발유삽입홀(116b)은 일대일로 결합될 수도 있고, 어느 하나의 삽입홀에 다른 매체가 이동하는 삽입홀이 다수개가 결합될 수도 있다. Accordingly, as shown in FIG. 11, the punching oil injection air holes 115a of the punching oil air block 115 are branched into a plurality through the air branch passage 115c, and the air of the branch block base 116 for each branch is branched. It is connected to the insertion hole 116a to move the blown air, and the first punching oil insertion hole 114a of the punching oil branch block 114 is located on the lower surface of the punching oil branch block 114 to supply air to the punching oil block 115. The punching oil is moved from the punching oil branch passage 114c formed along the edge to the second punching oil insertion hole 116b of the branch block base 116. The air insertion hole 116a and the second punching oil insertion hole 116b may be coupled one-to-one, or a plurality of insertion holes through which different media move may be coupled to any one insertion hole.
그리고, 상기 분기블록베이스(116)의 에어삽입홀(116a)과 제2타발유삽입홀(116b)이 만나며 빠르게 이동하는 분사에어와 천천히 이동하는 타발유가 결합되어 에어삽입홀(116a)의 끝부분인 제1타발유배출홀(116d)을 분사타발유가 통과하고 상부플레이트(110a)의 제2타발유배출홀(110e)을 통과해 하부로 이동한다. 이때 상부플레이트(110a)의 제2타발유배출홀(110e)를 형성하지 않고, 제1타발유배출홀(116d)에서 분사타발유가 분사되게 구비될 수도 있다.In addition, the air insertion hole 116a of the branch block base 116 and the second punching oil insertion hole 116b meet, and the rapidly moving jet air and the slowly moving punching oil are coupled to the end of the air insertion hole 116a. The injection punching oil passes through the phosphorus first punching oil discharge hole 116d and moves downward through the second punching oil discharge hole 110e of the upper plate 110a. At this time, the injection punching oil may be sprayed from the first punching oil discharge hole 116d without forming the second punching oil discharge hole 110e of the upper plate 110a.
상기 상부플레이트(110a)의 하부면에 배치되는 상부펀치홀더(112)는 상부면에 에어분기블록삽입홈(112a)이 형성되고, 상기 에어분기블록삽입홈(112a)에 스크랩을 밀어내기 위한 배출에어가 분기되는 에어분기블록(117)이 매립된다.The upper punch holder 112 disposed on the lower surface of the upper plate 110a has an air branch block insertion groove 112a formed on the upper surface, and a discharge for pushing scrap into the air branch block insertion groove 112a. An air branching block 117 through which air is branched is buried.
상기 에어분기블록(117)은 타발유와 분사에어가 결합된 분사타발유 상태로 내려오는 제3타발유삽입홀(117a)과, 스크랩을 배출하기 위한 배출에어를 분사하는 타발유분기블록(114)의 제1스크랩분사에어홀(114b)을 통과하고, 상기 분기블록베이스(116)의 제2스크랩분사에어홀(116c)을 통과하여 상기 상부플레이트(110a)의 제3스크랩분사에어홀(110d)과 연결되는 에어분기홀(117b)이 구비된다. The air branching block 117 includes a third punching oil insertion hole 117a that descends in a jet punching oil state in which punching oil and sprayed air are combined, and a punching oil branch block 114 for spraying exhaust air for discharging scrap. The third scrap spray air hole 110d of the upper plate 110a through the first scrap spray air hole 114b of the branch block base 116 and the second scrap spray air hole 116c of the branch block base 116 An air branch hole 117b connected to is provided.
그리고, 상기 상부펀치홀더(112)의 에어분기블록삽입홈(112a)에는 분사타발유가 유입되어 분사되는 제3타발유삽입홀(117a)과, 제1스크랩분사에어홀(114b)에서 연장형성되어 초경펀치(111)의 제4스크랩분사에어홀(111c)까지 연결되는 에어분기홀(117b)이 형성된다. 상부펀치홀더(112)에서 설명하지 않는 다수개의 큰 홀은 볼트 체결홀이며, 분사타발유 및 배출에어와 관계가 없다.In addition, the air branch block insertion groove 112a of the upper punch holder 112 is formed extending from the third punching oil insertion hole 117a and the first scrap spraying air hole 114b through which spraying oil is introduced and sprayed, An air branch hole 117b connected to the fourth scrap jet air hole 111c of the carbide punch 111 is formed. A plurality of large holes not described in the upper punch holder 112 are bolt fastening holes, and have nothing to do with injection punching oil and discharged air.
이와 같이 상기 타발유분기블록(114)의 제1스크랩분사에어홀(114b)은 분기블록베이스(116)의 제2스크랩분사에어홀(116c)과 연결되고, 상기 제2스크랩분사에어홀(116c)은 상부플레이트(110a)를 관통하여 상기 에어분기홀(117b)과 연결되며, 상기 에어분기홀(117b)은 상부펀치홀더(112)를 관통하여 초경펀치(111)의 제4스크랩분사에어홀(111c)과 연결되어 배출에어를 분사한다.In this way, the first scrap spraying air hole 114b of the punching oil branch block 114 is connected to the second scrap spraying air hole 116c of the branch block base 116, and the second scrap spraying air hole 116c Passes through the upper plate 110a and is connected to the air branch hole 117b, and the air branch hole 117b penetrates the upper punch holder 112 and passes through the upper punch holder 112 to the fourth scrap injection air hole of the carbide punch 111 ( 111c) to inject exhaust air.
이와 같이 상기 제3타발유삽입홀(117a)을 통과한 분사타발유는 초경펀치(111)의 타발유공급홀(111a)로 이동되고, 상기 에어분기홀(117b)을 통과한 배출에어는 제4스크랩분사에어홀(111c)을 관통하여 초경펀치(111) 하단까지 이동된다.In this way, the jet punching oil passing through the third punching oil insertion hole 117a is moved to the punching oil supply hole 111a of the carbide punch 111, and the discharged air passing through the air branch hole 117b is 4 It moves to the lower end of the carbide punch 111 through the scrap injection air hole 111c.
이에 상기 타발유공급홀(111a)을 통과해 타발유배출구(111b)에서 배출되는 분사타발유는 극판소재에 먼저 닿으면서 퍼지고 초경펀치(111) 및 초경다이(121)에 고르게 묻혀지며, 상기 제4스크랩분사에어홀(111c)에서 분사된 배출에어는 극판을 자르고 남은 스크랩을 배출시킨다.Accordingly, the injection punching oil discharged from the punching oil outlet 111b passing through the punching oil supply hole 111a spreads while first contacting the electrode plate material, and is evenly buried in the carbide punch 111 and the carbide die 121, 4 The discharge air injected from the scrap injection air hole 111c cuts the electrode plate and discharges the remaining scrap.
이와 같이 본 발명은 타발유공급부(130)에서 공급된 타발유가 에어공급부(140)에서 공급된 분사에어와 결합되어 타발유공급홀(111a)의 타발유배출구(111b)까지 분사타발유를 빠르고 원활하게 공급된다.As described above, in the present invention, the punching oil supplied from the punching oil supply unit 130 is combined with the jetting air supplied from the air supply unit 140 to quickly and smoothly supply the jetting oil to the punching oil outlet 111b of the punching oil supply hole 111a. are supplied
그리고, 분사타발유가 먼저 극판소재와 접촉되고, 극판소재에서 퍼지며 초경펀치(111)가 극판소재를 절단하고, 초경펀치(111)와 초경다이(121)가 서로 접촉하며 분사타발유가 초경펀치(111)와 초경다이(121)의 측면에 닿게 된다. 이때, 배출되는 분사타발유의 공급양과 공급속도는 극판소재의 이동 속도 및 상부금형의 상하 이동 속도에 따라 분사에어를 제어하여 조절이 가능하다.In addition, the blasting punching oil first contacts the electrode plate material, spreads from the electrode plate material, and the carbide punch 111 cuts the electrode material, and the carbide punch 111 and the carbide die 121 contact each other, and the jetting oil sprays the carbide punch 111 ) and the side surface of the cemented carbide die 121. At this time, the supply amount and supply speed of the ejected punching oil can be adjusted by controlling the jetting air according to the movement speed of the electrode plate material and the vertical movement speed of the upper mold.
한편, 상기 타발유배출구(111b)가 초경펀치(111) 측면에 형성되었을 때는 스트리퍼(113)에도 분사타발유가 묻혀질 수 있다.On the other hand, when the punching oil outlet 111b is formed on the side of the cemented carbide punch 111, the stripper 113 may also be covered with spray punching oil.
상기 타발유공급부(130)는 타발유분기블록(114)의 제1타발유삽입홀(114a)에 결합되고, 상기 에어공급부(140)는 타발유에어블록(115)의 타발유분사에어홀(115a)과 결합되되, 위치를 바꿔서 사용가능하다. 이에 상기 분기블록베이스(116)에서 타발유가 직진으로 이동하여 분사되고, 타발유보다 빠른 분사에어가 경사방향에서 타발유와 결합되어 타발유를 밀어주는 동력원으로 제공될 수 있다.The punching oil supply unit 130 is coupled to the first punching oil insertion hole 114a of the punching oil branch block 114, and the air supply unit 140 is the punching oil injection air hole 115a of the punching oil air block 115 ), but can be used by changing the position. Accordingly, the punching oil moves in a straight line and is injected from the branch block base 116, and the injection air faster than the punching oil is combined with the punching oil in an inclined direction to provide a power source for pushing the punching oil.
이와 같이 본 발명은 분사타발유에 의해 펀치로 극판을 절단할 때 발생하는 열을 제거하고 미세한 알루미늄 분말이 날리는 것을 방지할 수 있다.As described above, the present invention can remove heat generated when cutting an electrode plate with a punch by blast punching oil and prevent fine aluminum powder from flying.
따라서, 본 발명의 펀치에서 타발유가 배출되는 전지 극판 절단장치(100)는 냉각을 위한 타발유에 이동 속도를 제어하는 동력을 제공하여 금형의 승하강 속도에 따라 적절한 양의 타발유 공급이 가능한 효과가 있다.Therefore, the battery electrode plate cutting device 100 in which punching oil is discharged from the punch of the present invention provides power to control the moving speed to the punching oil for cooling, so that an appropriate amount of punching oil can be supplied according to the lifting speed of the mold. there is.
또한, 본 발명은 타발유가 이동하는 작은 이동홀로 인하여 타발유의 이동속도를 제어하지 못하는 경우에도 금형의 승하강 속도에 적합한 원활한 타발유 공급이 이루어져, 초경펀치가 초경다이와 마찰시 발생되는 열을 제거하며, 극판 절단시 발생되는 알루미늄 분진을 방지하는 장점이 있다.In addition, in the present invention, even when the moving speed of punching oil cannot be controlled due to a small moving hole through which punching oil moves, smooth punching oil supply suitable for the lifting and lowering speed of the mold is achieved, removing heat generated when the carbide punch rubs with the carbide die, , it has the advantage of preventing aluminum dust generated during electrode plate cutting.
그리고, 본 발명은 초경펀치의 타발유공급홀을 통과해 하부면 또는 측면에 형성된 타발유배출구에서 직접 타발유가 분사되므로 분사유로가 짧아 셋업시간이 적게 걸리며 안정화 시간이 짧은 효과가 있다.In addition, since the punching oil is injected directly from the punching oil outlet formed on the bottom or side surface of the carbide punch through the punching oil supply hole of the carbide punch, the injection flow path is short, so the setup time is short and the stabilization time is short.
또한, 본 발명은 2차 전지의 음극판은 물론 복잡한 양극판 형성 부분에도 사용할 수 있는 효과도 있다.In addition, the present invention has an effect that can be used not only for a negative electrode plate of a secondary battery but also for a complicated positive electrode plate forming part.
[부호의 설명][Description of code]
100 : 펀치에서 타발유가 배출되는 전지 극판 절단장치100: battery electrode plate cutting device in which punching oil is discharged from the punch
110 : 상부금형 110a : 상부플레이트110: upper mold 110a: upper plate
110b : 메인 가이드포스트 110c : 분기블록삽입홈110b: main guide post 110c: branch block insertion groove
110d : 제3스크랩분사에어홀 110e : 제2타발유배출홀110d: 3rd scrap injection air hole 110e: 2nd punching oil discharge hole
110f : 서브 가이드포스트110f: sub guide post
111 : 초경펀치 111a : 타발유공급홀111: carbide punch 111a: punching oil supply hole
111b : 타발유배출구 111c : 제4스크랩분사에어홀111b: punching oil outlet 111c: fourth scrap injection air hole
112 : 상부펀치홀더 112a : 에어분기블록삽입홈112: upper punch holder 112a: air branch block insertion groove
113 : 스트리퍼 114 : 타발유분기블록113: stripper 114: punched oil mill block
114a : 제1타발유삽입홀 114b : 제1스크랩분사에어홀114a: First punching oil insertion hole 114b: First scrap injection air hole
114c : 타발유분기유로 114d : 에어블록삽입홈114c: punched oil mill 114d: air block insertion groove
115 : 타발유에어블록 115a : 타발유분사에어홀115: punching oil air block 115a: punching oil injection air hole
115b : 체결홀 115c : 에어분기유로115b: fastening hole 115c: air branch passage
116 : 분기블록베이스 116a : 에어삽입홀 116: branch block base 116a: air insertion hole
116b : 제2타발유삽입홀 116c : 제2스크랩분사에어홀116b: second punching oil insertion hole 116c: second scrap injection air hole
116d : 제1타발유배출홀 117 : 에어분기블록116d: first punching oil discharge hole 117: air branch block
117a : 제3타발유삽입홀 117b : 에어분기홀117a: Third punching oil insertion hole 117b: Air branch hole
117c : 볼트홀117c: bolt hole
120 : 하부금형 120a : 하부플레이트120: lower mold 120a: lower plate
121 : 초경다이 122 : 하부다이홀더121: carbide die 122: lower die holder
130 : 타발유공급부 140 : 에어공급부130: punching oil supply unit 140: air supply unit

Claims (10)

  1. 상부금형과 하부금형 사이로 공급되는 극판소재를 가공하는 전지 극판 절단장치에 있어서,In the battery electrode plate cutting device for processing the electrode plate material supplied between the upper mold and the lower mold,
    상기 상부금형(110)을 구성하고, 상부로부터 타발유와 에어를 공급받는 상부플레이트(110a)와; 상기 상부플레이트(110a)의 하부에 배치되며 초경펀치(111)가 고정되는 상부펀치홀더(112)와; 상기 상부펀치홀더(112)의 하부에 배치되며 초경펀치(111)가 관통하며 극판소재를 고정하는 스트리퍼(113)와; 상기 하부금형(120)을 구성하는 하부플레이트(120a)의 상부면에서 극판소재를 안착 절단시키는 초경다이(121)가 고정되는 하부다이홀더(122);를 포함하되;an upper plate 110a constituting the upper mold 110 and receiving punching oil and air from the upper part; an upper punch holder 112 disposed under the upper plate 110a and to which a carbide punch 111 is fixed; a stripper 113 disposed below the upper punch holder 112 and through which the carbide punch 111 penetrates and fixes the electrode plate material; A lower die holder 122 to which a carbide die 121 for seating and cutting an electrode plate material is fixed on the upper surface of the lower plate 120a constituting the lower mold 120;
    상기 상부플레이트(110a)에는 타발유가 공급되는 제1타발유삽입홀(114a)과 스크랩 배출을 돕는 배출에어가 공급되는 제1스크랩분사에어홀(114b)이 형성되는 타발유분기블록(114)과, 상기 타발유분기블록(114) 내에 삽입되고 타발유에 분사력을 공급하는 분사에어가 공급되는 타발유분사에어홀(115a)이 형성되는 타발유에어블록(115)과, 상기 타발유분기블록(114) 하부에 배치되고 분사에어와 타발유가 각각 유입되어 결합되는 분기블록베이스(116)가 매립되고;A punching oil branch block 114 having a first punching oil insertion hole 114a through which punching oil is supplied and a first scrap injection air hole 114b through which exhaust air to help scrap discharge is supplied is formed in the upper plate 110a, A punching oil air block 115 inserted into the punching oil branch block 114 and having a punching oil spraying air hole 115a through which spraying air for supplying a spraying force to the punching oil is formed, and a punching oil spraying air block 115 at the bottom of the punching oil branch block 114 The branch block base 116 is buried and the branch block base 116 to which blowing air and punching oil are respectively introduced and coupled is disposed;
    상기 상부펀치홀더(112)에는 상기 분기블록베이스(116)에서 이송된 분사에어와 결합된 분사타발유를 초경펀치(111)에 형성되는 타발유공급홀(111a)로 공급하는 제3타발유삽입홀(117a)이 형성되는 에어분기블록(117)이 매립설치되는 In the upper punch holder 112, a third punching oil is inserted to supply jetting oil combined with the jetting air transferred from the branch block base 116 to the punching oil supply hole 111a formed in the carbide punch 111. The air branch block 117 in which the hole 117a is formed is buried and installed
    펀치에서 타발유가 배출되는 전지 극판 절단장치.A battery electrode plate cutting device that discharges punching oil from a punch.
  2. 제1항에 있어서,According to claim 1,
    상기 초경펀치(111)는 상기 제3타발유삽입홀(117a)에서 공급받은 분사타발유를 공급받는 타발유공급홀(111a)이 상하를 관통하여 그 하부면에 타발유배출구(111b)가 형성되는 In the carbide punch 111, the punching oil supply hole 111a for receiving the injection punching oil supplied from the third punching oil insertion hole 117a passes through the top and bottom, and the punching oil outlet 111b is formed on the lower surface thereof. felled
    펀치에서 타발유가 배출되는 전지 극판 절단장치.A battery electrode plate cutting device that discharges punching oil from a punch.
  3. 제1항에 있어서,According to claim 1,
    상기 타발유에어블록(115)의 하면에는 타발유에어블록(115)을 관통하는 타발유분사에어홀(115a)의 끝단에서 분사에어를 다수의 경로로 분리하는 에어분기유로(115c)가 형성되고,An air branch passage 115c is formed on the lower surface of the punched oil air block 115 to separate the injected air into a plurality of paths at the end of the punched oil injection air hole 115a penetrating the punched oil air block 115, ,
    상기 에어분기유로(115c)의 각 분기마다 상기 분기블록베이스(116)의 에어삽입홀(116a)과 연결되어 분사에어가 아래방향으로 이동되는Each branch of the air branch passage 115c is connected to the air insertion hole 116a of the branch block base 116 so that the blowing air moves downward.
    펀치에서 타발유가 배출되는 전지 극판 절단장치. A battery electrode plate cutting device that discharges punching oil from a punch.
  4. 제3항에 있어서,According to claim 3,
    상기 타발유분기블록(114)의 제1타발유삽입홀(114a)은 타발유분기블록(114)의 하면에서 상기 타발유에어블록(115)의 가장자리를 따라 연속적으로 형성된 타발유분기유로(114c)에서 분기블록베이스(116)의 제2타발유삽입홀(116b)로 연결되어 타발유가 아래 방향으로 이동되는The first punching oil branching passage 114a of the punching oil branch block 114 branches from the punching oil branch passage 114c continuously formed along the edge of the punching oil air block 115 on the lower surface of the punching oil branch block 114. It is connected to the second punching oil insertion hole 116b of the block base 116 and the punching oil moves downward
    펀치에서 타발유가 배출되는 전지 극판 절단장치. A battery electrode plate cutting device that discharges punching oil from a punch.
  5. 제1항에 있어서,According to claim 1,
    상기 에어분기블록(117)은 그 하면에 상기 타발유분기블록(114)의 제1스크랩분사에어홀(114b)에서 이송된 배출에어를 분기시키는 에어분기홀(117b)이 더 형성되는The air branching block 117 is further formed with an air branching hole 117b branching the exhaust air transferred from the first scrap jetting air hole 114b of the punching oil branching block 114 on the lower surface thereof.
    펀치에서 타발유가 배출되는 전지 극판 절단장치.A battery electrode plate cutting device that discharges punching oil from a punch.
  6. 제5항에 있어서,According to claim 5,
    상기 타발유분기블록(114)의 제1스크랩분사에어홀(114b)은 분기블록베이스(116)의 제2스크랩분사에어홀(116c)과 연결되고, The first scrap injection air hole 114b of the punching oil branch block 114 is connected to the second scrap injection air hole 116c of the branch block base 116,
    상기 제2스크랩분사에어홀(116c)은 상부플레이트(110a)를 관통하여 상기 에어분기홀(117b)과 연결되며,The second scrap jet air hole 116c passes through the upper plate 110a and is connected to the air branch hole 117b.
    상기 에어분기홀(117b)은 상부펀치홀더(112)를 관통하여 초경펀치(111)의 제4스크랩분사에어홀(111c)과 연결되는The air branch hole 117b passes through the upper punch holder 112 and is connected to the fourth scrap injection air hole 111c of the carbide punch 111
    펀치에서 타발유가 배출되는 전지 극판 절단장치. A battery electrode plate cutting device that discharges punching oil from a punch.
  7. 제4항에 있어서,According to claim 4,
    상기 분기블록베이스(116)는 에어삽입홀(116a)이 관통형성되어 분사에어가 이동되고, 상기 제2타발유삽입홀(116b)이 에어삽입홀(116a) 방향으로 경사지게 형성되어 타발유가 이동되며, 에어삽입홀(116a)과 제2타발유삽입홀(116b)이 상기 분기블록베이스(116)의 내부에서 결합되는 제1타발유배출홀(116d)에서 분사타발유가 형성되는In the branch block base 116, the air insertion hole 116a is formed through and the injection air is moved, and the second punching oil insertion hole 116b is formed inclined in the direction of the air insertion hole 116a to move the punching oil. Jetting oil is formed in the first punching oil discharge hole 116d where the air insertion hole 116a and the second punching oil insertion hole 116b are coupled inside the branch block base 116
    펀치에서 타발유가 배출되는 전지 극판 절단장치.A battery electrode plate cutting device that discharges punching oil from a punch.
  8. 제4항에 있어서,According to claim 4,
    상기 분기블록베이스(116)는 상기 제2타발유삽입홀(116b)이 관통형성되어 타발유가 이동되고, 상기 에어삽입홀(116a)이 제2타발유삽입홀(116b) 방향으로 경사지게 형성되어 분사에어가 이동되며, 에어삽입홀(116a)과 제2타발유삽입홀(116b)이 상기 분기블록베이스(116)의 내부에서 결합되는 제1타발유배출홀(116d)에서 분사타발유가 형성되는In the branch block base 116, the second punching oil insertion hole 116b is formed through and the punching oil is moved, and the air insertion hole 116a is formed inclined in the direction of the second punching oil insertion hole 116b to spray Air is moved, and jetting oil is formed in the first punching oil discharge hole 116d where the air insertion hole 116a and the second punching oil insertion hole 116b are coupled inside the branch block base 116
    펀치에서 타발유가 배출되는 전지 극판 절단장치.A battery electrode plate cutting device that discharges punching oil from a punch.
  9. 제1항에 있어서,According to claim 1,
    상기 초경펀치(111)는 상기 제3타발유삽입홀(117a)에서 공급받은 분사타발유를 공급받는 타발유공급홀(111a)이 내부를 이동하다가 그 측면에 타발유배출구(111b)가 형성되는 In the carbide punch 111, the punching oil supply hole 111a receiving the injection punching oil supplied from the third punching oil insertion hole 117a moves inside, and the punching oil outlet 111b is formed on the side thereof
    펀치에서 타발유가 배출되는 전지 극판 절단장치.A battery electrode plate cutting device that discharges punching oil from a punch.
  10. 제1항에 있어서,According to claim 1,
    상기 타발유분기블록(114)과 타발유에어블록(115)은 동일 평면상으로 배치되고,The punching oil branch block 114 and the punching oil air block 115 are arranged on the same plane,
    상기 타발유에어블록(115)은 그 하부에 배치되는 분기블록베이스(116)와 그 외곽형상이 동일한 The punching air block 115 has the same outline shape as the branch block base 116 disposed thereunder.
    펀치에서 타발유가 배출되는 전지 극판 절단장치.A battery electrode plate cutting device that discharges punching oil from a punch.
PCT/KR2022/011232 2022-02-25 2022-07-29 Battery electrode plate cutting device in which punching oil is discharged from punch WO2023163294A1 (en)

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CN208787640U (en) * 2018-08-27 2019-04-26 国联汽车动力电池研究院有限责任公司 Antisticking lithium electrode piece blanking units
KR102405554B1 (en) * 2022-02-25 2022-06-03 안혁 A battery electrode plate cutting device where oil is emitted from a punch

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KR101691937B1 (en) 2016-08-16 2017-01-02 안혁 A Manufacturing Device of a Cell Poleplate

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KR20180014560A (en) * 2016-08-01 2018-02-09 안혁 A Manufacturing Device of a Cell Poleplate
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KR101943634B1 (en) * 2017-12-29 2019-01-29 신현집 Blanking mold for punching lithium secondary battery equipped with punch cooling means
CN208787640U (en) * 2018-08-27 2019-04-26 国联汽车动力电池研究院有限责任公司 Antisticking lithium electrode piece blanking units
KR102405554B1 (en) * 2022-02-25 2022-06-03 안혁 A battery electrode plate cutting device where oil is emitted from a punch

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