KR101979377B1 - A rewinder for secondary battery - Google Patents

A rewinder for secondary battery Download PDF

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Publication number
KR101979377B1
KR101979377B1 KR1020180139817A KR20180139817A KR101979377B1 KR 101979377 B1 KR101979377 B1 KR 101979377B1 KR 1020180139817 A KR1020180139817 A KR 1020180139817A KR 20180139817 A KR20180139817 A KR 20180139817A KR 101979377 B1 KR101979377 B1 KR 101979377B1
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KR
South Korea
Prior art keywords
blades
electrode
winder
secondary battery
blade
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KR1020180139817A
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Korean (ko)
Inventor
이계설
이존하
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이계설
이존하
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Priority to KR1020180139817A priority Critical patent/KR101979377B1/en
Priority to CN201811397649.6A priority patent/CN109599594B/en
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Publication of KR101979377B1 publication Critical patent/KR101979377B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • H01M10/0409—Machines for assembling batteries for cells with wound electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/04—Interior-supporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4136—Mounting arrangements not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/41419—Starting winding process
    • B65H2301/41422—Starting winding process involving mechanical means
    • B65H2301/414227—Starting winding process involving mechanical means rotatable grippers for coreless winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The present invention relates to a winder for a secondary battery, which can be manufactured in a state that the winding shape of an electrode is not collapsed as the electrode is smoothly separated from the winder by minimizing friction between the electrode and a winder blade when a completed electrode is released from the winder after winding the electrode of a battery on the winder by installing a roller having elasticity on both edge sides of the winder blade divided into four parts. The winder for a secondary battery comprises: a pair of clamps (7) positioned in the center of a core; blades (2, 4, 8, 9) installed at the outside of the clamps (7), having an elliptical cross section and divided into four parts; and a body (6) combined with the inner side of the blades between the clamps (7) and the blades (2, 4, 8, 9). Rollers (3, 5) having tension are installed to face each other on the edge surface of blades (2, 4) among the blades (2, 4, 8, 9).

Description

이차전지용 권취기{A rewinder for secondary battery} [0001] A rewinder for secondary battery [0002]

본 발명은 이차전지용 권취기에 관한 것으로, 특히 4개로 분할된 권취기 블레이드의 양쪽 에지면에 탄성을 가진 롤러를 설치하여 권취기에 전극을 권취 후 완성된 전극을 권취기로부터 이탈시킬 때 전극과 권취기 블레이드간의 마찰을 최소화하여 전극이 권취기로부터 부드럽게 이탈되도록 함으로써 전극의 권취 모양이 무너지지 않은 상태로 제조 가능하도록 한 것이다. More particularly, the present invention relates to a winding device for a secondary battery, and more particularly to a winding device for a secondary battery, in which a roller having elasticity is provided on both edge surfaces of a rewinder blade divided into four pieces, The friction between the blades is minimized so that the electrode is smoothly separated from the winder so that the winding shape of the electrode can be manufactured without being broken.

통상적으로, 전지는 일차전지와 이차전지로 구분되며, 이차전지(secondary battery)는 충전이 불가능한 일차전지와는 달리, 충전 및 방전이 가능한 전지를 말하는 것으로, 셀룰라 폰, 노트북 컴퓨터, 캠코더 등의 첨단 전지기기 분야에서 널리 사용되고 있다. 2. Description of the Related Art [0002] Generally, a battery is classified into a primary battery and a secondary battery. Unlike a primary battery, which can not be charged, a secondary battery is a battery capable of charging and discharging. And is widely used in the field of battery devices.

특히, 리튬 이차전지는 작동전압이 36V로서, 전자장비 전원으로 많이 사용되고 있는 니켈-카드뮴 전지나 니켈-수소 전지보다 3배나 높고, 단위중량당 에너지밀도가 높다는 측면에서 급속도로 확장되고 있다.Particularly, the lithium secondary battery has a working voltage of 36V, which is three times higher than a nickel-cadmium battery or a nickel-hydrogen battery, which is widely used as an electronic equipment power source, and is rapidly expanding in terms of high energy density per unit weight.

이러한 리튬 이차전지는 주로 양극 활물질로 리튬계 산화물, 음극 활물질로는 탄소재를 사용하고 있으며, 리튬 이차전지는 여러 가지 형상으로 제조되고 있는데, 대표적 형상으로는 원통형과, 각형과, 파우치형을 들 수 있다.Such a lithium secondary battery mainly uses a lithium-based oxide as a positive electrode active material, and a carbonaceous material as a negative electrode active material. Lithium secondary batteries are manufactured in various shapes. Typical shapes include a cylindrical shape, a square shape, and a pouch shape. .

리튬 이차전지는 전극 조립체와, 전극 조립체를 수용하는 리튬 이차전지용 케이스와, 리튬 이차전지용 케이스 내측에 주입되어 리튬 이온의 이동을 가능하게 하는 전해액을 포함한다.The lithium secondary battery includes an electrode assembly, a lithium secondary battery case for accommodating the electrode assembly, and an electrolyte solution injected into the lithium secondary battery case to enable movement of lithium ions.

전극 조립체는 양극판과 음극판, 그리고 양극판과 음극판 사이에 개재되어 쇼트를 방지하며 전해액 또는 이온의 이동이 가능한 세퍼레이터로 이루어진다.The electrode assembly comprises a positive electrode plate and a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate to prevent short-circuiting and capable of moving the electrolyte or ion.

종래에는 권취기에 이차전지용 전극을 권취후 전극을 권취기로부터 이탈시킬때 전극과 권취기 블레이드간에 마찰이 발생될 수 있어 전극의 권취 모양이 무너질 수 있으므로 이차전지 전극의 제품불량이 발생되기 쉬운 결점이 있었다.Conventionally, when an electrode for a secondary battery is wound around a winding machine and then the electrode is taken out of the winder, friction may be generated between the electrode and the winder blade to break the winding shape of the electrode. there was.

본 발명은 이와 같은 종래의 결점을 해결하기 위한 것으로, 본 발명의 목적은, 4개로 분할된 권취기 블레이드의 양쪽 에지면에 탄성을 가진 롤러를 설치하여 권취기에 이차전지용 전극을 권취 후 전극을 권취기로부터 이탈시킬 때 전극과 권취기 블레이드간의 마찰을 최소화하여 권취기로부터 전극의 권취 모양이 무너지지 않은 상태에서 그대로 완성된 제품을 빼낼 수 있도록 한 이차전지용 권취기를 제공하는데 있다. SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems of the prior art described above by providing a roller having elasticity on both edge surfaces of a winder blade divided into four pieces and winding an electrode for a secondary battery in a winder, The present invention also provides a secondary battery winder that can minimize the friction between the electrode and the winder blade when the winder is released from the winder, thereby allowing the finished product to be removed without a collapse of the winding shape of the electrode from the winder.

이와 같은 목적을 달성하기 위한 본 발명은 4개로 분할된 권취기 블레이드의 양쪽 에지면에 각각 탄성을 가진 롤러를 설치하여 전극을 권취기로분터 이탈시킬 때 블레이드의 에지면에 설치된 롤러가 텐션을 받아 이동하여 전극이 권취형태를 그대로 유지하면서 이탈되도록 구성함을 특징으로 한다.In order to achieve the above object, the present invention is characterized in that a roller having elasticity is provided on both edge surfaces of four divided winder blades, and when the electrode is released from the winder, the roller provided on the edge surface of the blade receives tension So that the electrode is separated while maintaining the wound shape.

이상과 같은 본 발명에 의한 이차전지용 권취기는 권심의 바디 및 블레이드를 4분할로 구성한 권취기에 있어서, 권취기의 양쪽 블레이드의 에지면에 텐션을 가진 롤러를 설치하여 권취기에 배터리 전극을 권취 후 전극을 권취기로부터 이탈시킬 때 전극이 블레이드와의 마찰없이 부드럽게 빠지면서 전극의 권취모양이 무너지지 않은 상태로 제품을 제조할 수 있는 효과가 있다. In the winding machine for a secondary battery according to the present invention as described above, in the winding machine constituted by four parts of the winding body and the blade, a roller having tension is provided on the edge surface of both blades of the winding machine, and a battery electrode is wound on the winding machine, There is an effect that the product can be manufactured in a state in which the electrode is smoothly released without friction with the blade when the electrode is detached from the take-up machine, and the shape of the wound electrode is not broken.

도 1은 본 발명 이차전지용 권취기의 사시도
도 2는 본 발명의 권취기에 전극이 권선된 상태를 나타낸 도면
도 3은 본 발명의 블레이드의 롤러 부분 단면도1 is a perspective view of a winding machine for a secondary battery according to the present invention;
2 is a view showing a state where an electrode is wound on a winding device of the present invention
Figure 3 is a cross-sectional view of the roller portion of the blade of the present invention

본 발명의 실시예들은 당해 기술 분야에서 통상의 지식을 가진 자에게 본 발명을 더욱 완전하게 설명하기 위하여 제공되는 것이며, 하기 실시예는 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 하기 실시예에 한정되는 것은 아니다. The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified into various other forms, It is not limited to the embodiment.

본 발명의 실시예는 본 개시를 더욱 충실하고 완전하게 하고, 당업자에게 본 발명의 사상을 완전하게 전달하기 위하여 제공되는 것이다.Embodiments of the invention are provided so that this disclosure will be more faithful and complete, and will fully convey the scope of the invention to those skilled in the art.

이하의 도면에서 각 층의 두께나 크기는 설명의 편의 및 명확성을 위하여 과장된 것이며, 도면상에서 동일 부호는 동일한 요소를 지칭하며, 본 명세서에서 사용된 바와 같이, 용어 "및/또는" 는 해당 열거된 항목 중 어느 하나 및 하나 이상의 모든 조합을 포함한다.In the following drawings, thickness and size of each layer are exaggerated for convenience and clarity of description, and the same reference numerals are used for the same elements in the drawings. As used herein, the term " and / Any one of the items and any combination of one or more.

본 명세서에서 사용된 용어는 특정 실시예를 설명하기 위하여 사용되며, 본 발명을 제한하기 위한 것은 아니다.The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

또한, 본 명세서에서 사용되는 경우 "포함한다(comprise)" 및/또는 "포함하는(comprising)"은 언급한 형상들, 숫자, 단계, 동작, 부재, 요소 및/또는 이들 그룹의 존재를 특정하는 것이며, 하나 이상의 다른 형상, 숫자, 동작, 부재, 요소 및 /또는 그룹들의 존재 또는 부가를 배제하는 것이 아니다.Also, " comprise " and / or " comprising " when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

이하, 도 1을 참조하여 본 발명의 실시예에 따른 권취기에 대하여 상세히 설명하면 다음과 같다.Hereinafter, a winding machine according to an embodiment of the present invention will be described in detail with reference to FIG.

도 1은 본 발명의 실시예에 따른 권취장치 중 권심의 사시도. 도 2는 본 발명의 실시예에 따른 권취기의 단면도, 도 3은 롤러부분의 단면도를 나타낸 것으로, 권취기 베이스부(10)의 권심 중앙에 위치하는 한 쌍의 클램프(7)와, 상기 클램프(7)의 외측에 설치되는 것으로 단면이 타원 형태이고 4개로 분할 형성된 블레이드(2)(4)(8)(9)와, 상기 클램프(7)와 블레이드(2)(4)(8)(9)의 사이에서 상기 블레이드의 내면에 결합되는 바디(6)를 포함하여 구성된 이차전지용 권취기에 있어서, 상기 블레이드(2)(4)의 에지면에 텐션을 가진 롤러(3)(5)를 서로 대향되도록 설치하여 구성되는 것이다.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a winding core in a winding device according to an embodiment of the present invention; Fig. Fig. 2 is a sectional view of a winding machine according to an embodiment of the present invention. Fig. 3 is a cross-sectional view of a roller portion. Fig. 2 shows a pair of clamps 7 located at the center of the winding core of the winding machine base 10, (4), (8) and (9), each of which is formed on the outer side of the blade (7) and has an elliptical cross section and is divided into four parts, and a blade (2) (5) having tension on the edge surface of the blades (2) (4), and a body (6) coupled to the inner surface of the blade between the blades So as to face each other.

도 3은 본 발명 블레이드(2)(4)의 각 롤러(3)(5)중에서 예를 들어, 롤러(5)의 단면을 나타낸 것으로, 블레이드(2)의 에지면에 텐션을 가진 롤러(5)가 설치되고, 상기 롤러(5)는 중심축(5a)을 중심으로 이동가능하게 설치되며, 상기 중심축(5a)은 브라켓(11)내의 지지대(5b)에 지지됨과 함께 상기 지지대(5b)의 하부에는 스프링(5c)이 탄설되어 구성되는 것이다.3 shows a cross section of the roller 5, for example, among the rollers 3 and 5 of the blades 2 and 4 according to the present invention. The roller 5 having a tension on the edge surface of the blade 2 The center shaft 5a is supported by a support 5b in the bracket 11 and is supported by the support 5b. And a spring 5c is attached to the lower part of the housing.

이와 같이 구성된 본 발명의 작용을 설명하면 다음과 같다.Hereinafter, the operation of the present invention will be described.

본 발명은 이차전지용 전극을 권취하여 제조하기 위한 권취기에 있어서, 4개의 블레이드(2)(4)(8)(9)가 클램프(7)를 중심으로 일정간격내에서 이동가능하게 설치되고, 상기 블레이드(2)(4)(8)(9)의 외주면에 전극이 권취되면서 전극조립체(1)를 제조하게 된다.The present invention relates to a winder for winding and manufacturing an electrode for a secondary battery, wherein four blades (2), (4), (8), and (9) are provided so as to be movable with a predetermined distance around the clamp (7) The electrode assembly 1 is manufactured while the electrodes are wound around the outer peripheral surfaces of the blades 2, 4, 8, and 9.

또한, 상기 블레이드(2)(4)(8)(9)의 외주면에 권취되는 전극의 권취가 완성되면, 블레이드(2)(4)(8)(9)로부터 이탈되면서 전극 자체만 남게 되는데, 이러한 전극의 이탈시 블레이드(2)(4)의 에지면과 전극간에 상호 마찰이 발생되면서 전극 형태가 그대로 이탈되지 않고 흐트러진 상태로 이탈되기 쉬워 제품의 하자를 가져오게 되는 경우가 있다.When the electrodes wound on the outer circumferential surfaces of the blades 2, 4, 8 and 9 are completely wound, only the electrodes themselves are left while being detached from the blades 2, 4, 8 and 9, When such an electrode is detached, mutual friction occurs between the edge surface of the blades 2 and 4 and the electrode, and the electrode shape may not be detached as it is and may easily be detached in a disordered state, resulting in defective products.

따라서, 본 발명에서는 블레이드(2)(4)의 에지면에 도면과 같이, 롤러(3)(5)를 탄설하여 전극의 이탈시 이러한 롤러(3)(5)가 텐션을 받아 이동하면서 전극과 블레이드(2)(4)간의 마찰을 최소화하도록 한다.Accordingly, in the present invention, the rollers 3 and 5 are laid on the edge surfaces of the blades 2 and 4 so that the rollers 3 and 5 are tensioned when the electrodes are detached, So that friction between the blades 2 and 4 is minimized.

즉, 권취기에 전극이 권취될 때에는 권취기의 블레이드(2)(4) 에지면에 돌출되어 있는 롤러(3)(5)에 의해 전극이 약간 돌출된 롤러(3)(5)만큼의 간격을 두고 권취된다.That is, when the electrode is wound on the winder, the distance between the rollers 3 and 5 protruded slightly from the edges of the blades 2 and 4 of the winder And is wound.

상기 롤러(3)(5)는 예를 들어, 도 3과 같은 롤러(5)의 경우, 중심축(5a)이 지지대(5b)에 지지되고 이러한 지지대(5b)는 브라켓(11)내의 스프링(5c)에 탄설되어 있어 롤러(5)에 힘이 가해지면 스프링(5c)이 압축되면서 롤러(5)가 하부로 탄력적으로 이동하고 롤러(5)에 가해지던 힘이 없어지면 다시 스프링(5c)이 복원되면서 롤러(5)가 원위치하게 된다.3, the central axis 5a is supported by a support 5b and the support 5b is supported by a spring (not shown) in the bracket 11. In the case of the roller 5, The spring 5c is compressed and the roller 5 is elastically moved to the lower portion and the spring 5c is restored again when the force applied to the roller 5 is lost The roller 5 is returned to its original position.

따라서, 권취된 전극의 권취가 완료되어 권취기로부터 전극을 이탈시키고자 할 때에는 블레이드(2)(4)의 에지면에 탄설된 롤러(3)(5)가 전극에 의해 눌려져 스프링(5c)이 압축되면서 블레이드(2)(4)의 내측으로 이동되므로 이동된 만큼의 공간이 생겨 전극과 블레이드와의 마찰이 최소화되면서 전극이 쉽게 블레이드로부터 이탈될 수 있는 것이다.The rollers 3 and 5 laid on the edge surfaces of the blades 2 and 4 are pressed by the electrodes so that the springs 5c The compressed air moves to the inside of the blades 2 and 4 so that a space is formed as much as it is moved so that the friction between the electrode and the blade is minimized so that the electrode can be easily detached from the blade.

또한, 상기와 같이 전극이 블레이드(2)(4)와의 마찰없이 권취기로부터 이탈되면 전극에 의해 눌려지던 힘이 없어지므로 압축되어 있던 스프링(5c)이 복원되면서 다시 롤러(5)가 상방으로 이동하여 원위치를 하게 된다.In addition, when the electrode is separated from the winder without friction with the blades 2 and 4, the force pressed by the electrode is lost, so that the compressed spring 5c is restored and the roller 5 is moved upward So that it is in the home position.

이상에서 설명한 것은 본 발명에 의한 이차전지용 권취기를 실시하기 위한 하나의 실시예에 불과한 것으로서, 본 발명은 상기 실시예에 한정되지 않고, 이하의 특허청구범위에서 청구하는 바와 같이 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능함은 물론이다.The present invention is not limited to the above-described embodiments, but may be modified in various ways within the spirit and scope of the present invention as set forth in the following claims. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1 : 전극조립체 2,4,8,9 : 블레이드
3,5 : 롤러 5a : 중심축
5b : 지지대 5c : 스프링
6 : 바디 7 : 클램프
11 : 브라켓1: electrode assembly 2, 4, 8, 9: blade
3,5: roller 5a: center axis
5b: support member 5c: spring
6: Body 7: Clamp
11: Bracket

Claims (2)

권심의 중앙에 위치하는 한 쌍의 클램프(7)와, 상기 클램프(7)의 외측에 설치되며 단면이 타원 형태이고 4개로 분할 형성되는 블레이드(2)(4)(8)(9)와, 상기 클램프(7)와 블레이드(2)(4)(8)(9)의 사이에서 블레이드(2)(4)(8)(9)의 내면에 결합되는 바디(6)를 포함하여 구성되는 이차전지용 권취기에 있어서,
상기 블레이드(2)(4)(8)(9)들 중 블레이드(2)(4)의 에지면에 서로 대향되게 설치되는 텐션을 가진 롤러(3)(5)를 더 포함하여 구성되는 것을 특징으로 하는 이차전지용 권취기.A pair of clamps 7 positioned at the center of the winding core, blades 2, 4, 8, and 9 provided on the outside of the clamp 7 and having an elliptical cross section and being divided into four, And a body 6 coupled to the inner surfaces of the blades 2, 4, 8, 9 between the clamp 7 and the blades 2, 4, 8, In the battery winding machine,
(3) (5) having a tension which is provided so as to face each other on the edge surfaces of the blades (2) (4) among the blades (2) Wherein the secondary battery is wound around the secondary battery. 제1항에 있어서, 상기 롤러(5)는 중심축(5a)을 중심으로 이동가능하게 설치되며, 상기 중심축(5a)은 브라켓(11)내의 지지대(5b)에 지지되고, 상기 지지대(5b)의 하부에는 스프링(5c)을 탄설하여 구성되는 것을 특징으로 하는 이차전지용 권취기.The apparatus according to claim 1, wherein the roller (5) is installed to be movable about a center shaft (5a), the center shaft (5a) is supported by a support (5b) in the bracket (11) And a spring (5c) is laid on the lower part of the main body (2).
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