发明授权
- 专利标题: Apparatus for forming tall tapered containers
- 专利标题(中): 用于形成高锥形容器的装置
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申请号: US129482申请日: 1987-12-07
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公开(公告)号: US4782685A公开(公告)日: 1988-11-08
- 发明人: Joseph D. Bulso, Jr. , James A. McClung
- 申请人: Joseph D. Bulso, Jr. , James A. McClung
- 申请人地址: OH Canton
- 专利权人: Redicon Corporation
- 当前专利权人: Redicon Corporation
- 当前专利权人地址: OH Canton
- 主分类号: B21D22/24
- IPC分类号: B21D22/24 ; B21D22/26 ; B21D51/26 ; B65D1/00 ; B65D1/26 ; B21D22/20
摘要:
A method of forming a tapered container in which the container is first redrawn to a partial length having first and second straight sidewall portions interconnected by a transition position and then redrawn to substantially its final length and tapered condition by drawing material from the transition portion. The method also optionally includes an overlength second redraw and a bottom profiling step utilizing the overdrawn portion to form the profile. The apparatus includes a plurality of stations wherein the redrawing is accomplished in the first instance with a tapered punch and straight walled die and in the second instance with a tapered punch and tapered die.
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