Automatic Material Changer for Secondary Battery Winding Equipment

Abstract

Provided is an automatic material changing device of a secondary battery winding apparatus that can quickly and accurately replace a material for a secondary battery without stopping the operation of the apparatus. The apparatus includes: a rotating and interchangeable section including a first rotating shaft coupled to a roll-shaped supply material, a second rotating shaft mounted along the length and coupled to a roll-shaped standby material, mounted between the first and second Interchanging shaft between two rotating shafts and allowing the positions of the first and second rotating shafts to be interchanged with each other; a clutch connection and rotation driving portion, coupled to the rotating and interchanging portion, rotating the first or second rotating shaft to allow The supply material is supplied to the device; the cutting and suction part, arranged on one side of the rotation and interchange part, cuts and suctions the end of the supply material before the supply of the supply material is completed, wherein, when the first and second The cutting and suction portion connects said end of the supply material to the end of the standby material when the positions of the rotation axes are interchanged with each other.

Description

[0001] This application claims priority and benefit from Korean Patent Application No. 10-2013-0019800 filed on February 25, 2013, the entire contents of which are hereby incorporated by reference. technical field [0002] Aspects of the present invention relate to an apparatus for automatically changing materials for secondary battery winding equipment. Background technique [0003] In general, a manufacturing method of a lithium ion secondary battery includes: setting up an electrode assembly by stacking a first separator, a negative electrode plate, a second separator, and a positive electrode plate; winding the stacked structure multiple times; winding the electrode assembly Sealed in the case; the electrolyte solution is injected into the case. [0004] Here, the separators are supplied in the form of wound rolls. However, considering the material properties of the separator, there is a limit in increasing the diameter of the roll. Therefore, it is inconvenient that t...

AI Technical Summary

Problems solved by technology

However, considering the material properties of the separator, there is a limit in increasing the diameter of the roll

Therefore, frequent reel changes are required during winding, which is inconvenient

[0005] Therefore, in the manufacturing process of lithium ion secondary batteries, in particular, in the process of setting the electrode assembly, frequent reel replacement will prolong the operation suspension time of the secondary battery winding equipment, thereby reducing the lithium ion secondary battery. Manufacturability of Secondary Batteries

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