APPARATUS FOR PRESS FORMING

The present disclosure relates to a press forming apparatus, comprising: a die in which a molded portion is formed by being recessed inwardly from an upper surface thereof; a stripper for fixing an object to be formed disposed on the die; a punch provided above the die to be movable upwardly and dow...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIM, Dong Ju, BYUN, Jae Gyu, PARK, Sun Min, KIM, Sang Mo, JEONG, Taek Eon
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The present disclosure relates to a press forming apparatus, comprising: a die in which a molded portion is formed by being recessed inwardly from an upper surface thereof; a stripper for fixing an object to be formed disposed on the die; a punch provided above the die to be movable upwardly and downwardly, and inserted into the molded portion when descending, to form an accommodating portion in the object to be formed, wherein a surface of the molded portion, in contact with the object to be formed, is curved, and the punch comprises a vent for blowing air onto an upper surface of the object to be formed. According to the present disclosure, a molded portion of the pouch film may be uniformly stretched, and accordingly, the occurrence of cracks may be prevented, so that workability and productivity may be improved, and furthermore, long-term reliability of the secondary battery may be secured.