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    • 5. 发明申请
    • Method For the Production of Metal Closures
    • 金属封闭件生产方法
    • US20080181749A1
    • 2008-07-31
    • US11910037
    • 2006-03-31
    • Robert MeierFrank Roland Strebe
    • Robert MeierFrank Roland Strebe
    • B21D45/04B21D51/44
    • B21D45/04B21D43/16B21D43/18B21D51/44
    • The present invention relates to a method and tooling suitable for handling closure blanks (5) having an external radius (6) at their cut edge at production speeds of about (1200) closures per minute. The external radius (6) limits formation of “angel hair” (a common problem in metal closure production). However, reversing the external radius causes a problem, when producing metal closures having a conventional inward curl at their peripheral edge. Accordingly, the invention proposes a modified curling rail (40) having a first portion (41) to uncurl the external curl (6) on the closure blank (5) and a second portion (45) to urge the straightened side wall of the closure blank (5) towards an inward curl.
    • 本发明涉及适用于处理在其切割边缘处具有大约(1200)个关闭每分钟的生产速度的外半径(6)的封闭坯件(5)的方法和工具。 外半径(6)限制“天使头发”的形成(金属封闭生产中的常见问题)。 然而,当制造在其周缘处具有传统的向内卷曲的金属封闭件时,反转外部半径会引起问题。 因此,本发明提出了一种改进的卷曲轨道(40),其具有第一部分(41),以使封闭坯料(5)上的外部卷曲(6)不弯曲;以及第二部分(45),以推动封闭件的拉直侧壁 空白(5)向内卷曲。
    • 8. 发明授权
    • Method for the production of metal closures
    • 金属封闭件生产方法
    • US08322177B2
    • 2012-12-04
    • US11910037
    • 2006-03-31
    • Robert MeierFrank Roland Strebe
    • Robert MeierFrank Roland Strebe
    • B21D51/26B21D11/10B21D51/44B21H3/06
    • B21D45/04B21D43/16B21D43/18B21D51/44
    • The present invention relates to a method and tooling suitable for handling closure blanks (5) having an external radius (6) at their cut edge at production speeds of about (1200) closures per minute. The external radius (6) limits formation of “angel hair” (a common problem in metal closure production). However, reversing the external radius causes a problem, when producing metal closures having a conventional inward curl at their peripheral edge. Accordingly, the invention proposes a modified curling rail (40) having a first portion (41) to uncurl the external curl (6) on the closure blank (5) and a second portion (45) to urge the straightened side wall of the closure blank (5) towards an inward curl.
    • 本发明涉及适用于处理在其切割边缘处具有大约(1200)个关闭每分钟的生产速度的外半径(6)的封闭坯件(5)的方法和工具。 外半径(6)限制天使头发的形成(金属封闭生产中的常见问题)。 然而,当制造在其周缘处具有传统的向内卷曲的金属封闭件时,反转外部半径会引起问题。 因此,本发明提出了一种改进的卷曲轨道(40),其具有第一部分(41),以使封闭坯料(5)上的外部卷曲(6)不弯曲;以及第二部分(45),以推动封闭件的拉直侧壁 空白(5)向内卷曲。