Production of closed bottom shells
    1.
    发明授权
    Production of closed bottom shells 失效
    封闭底壳的生产

    公开(公告)号:US3967482A

    公开(公告)日:1976-07-06

    申请号:US559400

    申请日:1975-03-17

    CPC分类号: B21D24/00 B21D45/00 B21D45/08

    摘要: Elongated closed bottom shells (cans) are produced in the preferred manner by a double-acting punch body arranged on a horizontal axis and reciprocated between opposed die stations at a substantially constant velocity by a hydraulic force alternately applied to opposite sides of a ram on the punch body; blanks (of cup form) are fed to the die stations at times when the punch body dwells at the end of a stroke. Preferably the applied force is such that punch body attains peak (maximum) velocity before the punch encounters a cup centered at the die station; cup feed, cup positioning, punch body travel and formation of a shell of correct length are monitored (sensed) and in the event a programmed condition of machine function or production criterion is sensed as not satisfied, the machine is stopped.During the return stroke of the punch body, after a shell is formed at one station, fluid under pressure is applied by a unique porting arrangement to a separable part of the punch, which thereby serves as a stripper to hold the completed shell stationary at the die station while the remainder of the punch body is retracted from the shell; concurrently, air under pressure is ported in a unique fashion to break any vacuum inside of the shell. After the shell is stripped, the stripper is retracted at an accelerated rate to re-couple with the punch body as it moves toward the other die station.The main cylinder is so supported that thermal effects will not disturb the alignment of the punch body relative to the dies.

    摘要翻译: 细长的封闭的底壳(罐)以优选的方式通过布置在水平轴线上的双作用冲头主体以基本上恒定的速度在相对的模具工位之间往复运动,通过交替地施加到冲头的相对侧的液压力 冲身; 在冲击结束时打孔体存在的时候,将模具(杯形)的坯料送入模具台。 优选地,所施加的力使得冲头体在冲头遇到在模座之间的杯子之前达到峰值(最大)速度; 监视(感测)正确长度的杯子进给,杯定位,冲头体行程和形成正确长度的壳体,并且在机器功能或生产准则的编程状态被感测为不满足的情况下,机器停止。

    Scrap ring removal
    2.
    发明授权
    Scrap ring removal 失效
    废钢圈拆除

    公开(公告)号:US4305196A

    公开(公告)日:1981-12-15

    申请号:US56797

    申请日:1979-07-11

    摘要: An inverted press for producing multiple drawn metal containers combines in one press the functions of cupping and drawing presses. The press includes a blanking and cupping station and several drawing and redrawing stations, disposed one adjacent the other and rendered serially operative by a vertically reciprocable slide assembly. At each stage of operation the material, semifinished article or finished article is under complete control. A method for producing a drawn container by multiple forming and reforming of a drawn article, is also provided.

    摘要翻译: 用于生产多个拉制金属容器的倒置冲压机一次压入拔罐和拉拔压力机的功能。 压机包括一个消隐和拔罐站以及几个绘图和重绘站,它们彼此相邻设置,并且由垂直往复运动的滑动组件连续操作。 在操作的每个阶段,材料,半成品或成品完全控制。 还提供了一种通过多次成形和重整制造拉制容器的方法。