METHOD AND DEVICE FOR MANUFACTURING CAN

To provide a method for manufacturing can which performs such air assist as to extract a punch smoothly from a worked can by performing the air assist properly.SOLUTION: A method for manufacturing can according to drawing working and/or drawing ironing working by using a press machine includes a str...

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Bibliographische Detailangaben
Hauptverfasser: TOCHIGI TAKAYUKI, FUNATSUKI HIROMITSU, WAKISAKA KOJI, SOTOMURA SHIGEJIRO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a method for manufacturing can which performs such air assist as to extract a punch smoothly from a worked can by performing the air assist properly.SOLUTION: A method for manufacturing can according to drawing working and/or drawing ironing working by using a press machine includes a stripping process of extracting a punch from a can after drawing working and/or drawing ironing working. The method for manufacturing can is characterized in that, in the stripping process, air assist to blow-out air from an air blow-out port of the tip of the punch and to assist extraction of the punch is performed and, in the air assist, pressure of the air and/or the blow-out timing of air is adjusted to pressure and/or blow-out timing according to conditions of the shot at every shot.SELECTED DRAWING: Figure 2 【課題】本発明は、エアアシストを適切に行うことにより、加工された缶からパンチをスムーズに抜き取ることができるエアアシストを行う缶の製造方法を提供することを課題とする。【解決手段】プレス機を用いた絞り加工及び/又は絞りしごき加工による缶の製造方法において、前記絞り加工及び/又は絞りしごき加工後の缶からパンチを抜き取るストリッピング工程を有し、前記ストリッピング工程では、前記パンチの先端のエア吹出口からエアを吹き出して、前記パンチの抜き取りをアシストするエアアシストを行い、前記エアアシストでは、前記エアの圧力及び/又は前記エアの吹き出しタイミングを、ショット毎に、当該ショットの条件に応じた圧力及び/又は吹き出しタイミングに調整することを特徴とする缶の製造方法。【選択図】図2