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11 条记录 (耗时 0.013 秒)

    A method of forming an outwardly inverted peripheral edge on a preformed metal lid
    2.
    发明公开
    A method of forming an outwardly inverted peripheral edge on a preformed metal lid 失效
    上形成预先形成的金属盖向外突出的外周边缘的方法。

    公开(公告)号：EP0049020A1

    公开(公告)日：1982-04-07

    申请号：EP81201069.2

    申请日：1981-09-25

    申请人： Thomassen & Drijver-Verblifa N.V.

    发明人： Post, Willem Pieter

    IPC分类号： B21D51/44

    CPC分类号： B21D51/44

    摘要： he invention relates to a method whereby a pre- formed metal lid which is intended for a tin, e.g. a paint tin, and of which at least one peripheral portion is axially deepened, is formed with a radially outwardly inverted peripheral edge with respect to the lid axis.
    The object of this invention is to provide a method in which the outwardly inverted peripheral edge can be formed with very close dimensional tolerances. To this end the invention provides a method of the type referred to hereinbefore, which is characterized in that the lid is held in tightly fitting relationship in all directions in a multipart die at least by its deepened peripheral portion, except in the zone where the inverted peripheral edge is to be formed and at least at the inside of the base of said peripheral portion, and said base is pressed by art of the die acting as a punch against the part of the die situated opposite the inside of the base.

    Method and device for making grooves in a tin body
    8.
    发明公开
    Method and device for making grooves in a tin body 失效
    用于在金属体内制作格子的方法和装置

    公开(公告)号：EP0131159A3

    公开(公告)日：1985-07-03

    申请号：EP84106484

    申请日：1984-06-06

    申请人： Thomassen & Drijver-Verblifa N.V.

    发明人： Post, Willem Pieter

    IPC分类号： B21D17/02 ,  B21D51/26

    CPC分类号： B21D17/02

    摘要： In the wall of the tin body grooves are introduced between tools radially movable in opposite senses towards the tin body, one tool being provided with ridges and the other with grooves registering with the ridges. This method makes it possible, contrary to the usual rollers, to introduce grooves with fairly small tolerances. Damage of the lacquer does not occur. Because of the forming of sharper grooves the radial strength will be improved and the wall thickness of the tin body can be reduced.

    Method and device for making grooves in a tin body
    9.
    发明公开
    Method and device for making grooves in a tin body 失效
    Verfahren und Vorrichtung zum Formen von Rillen in einen Dosenmantel。

    公开(公告)号：EP0131159A2

    公开(公告)日：1985-01-16

    申请号：EP84106484.3

    申请日：1984-06-06

    申请人： Thomassen & Drijver-Verblifa N.V.

    发明人： Post, Willem Pieter

    IPC分类号： B21D17/02 ,  B21D51/26

    CPC分类号： B21D17/02

    摘要： In the wall of the tin body grooves are introduced between tools radially movable in opposite senses towards the tin body, one tool being provided with ridges and the other with grooves registering with the ridges. This method makes it possible, contrary to the usual rollers, to introduce grooves with fairly small tolerances. Damage of the lacquer does not occur. Because of the forming of sharper grooves the radial strength will be improved and the wall thickness of the tin body can be reduced.

    摘要翻译： 在锡体壁上，凹槽被引入到相对于锡体相反的方向可径向移动的工具之间，一个工具设置有脊，而另一个工具具有与脊对准的凹槽。 这种方法使得与通常的辊相反，可以以相当小的公差引入凹槽。 不会发生漆的损坏。 由于形成更清晰的槽，径向强度将得到改善，并且锡体的壁厚可以减小。