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    • 24. 发明申请
    • METHOD AND APPARATUS FOR FORMING A SHAPED PLASTIC ARTICLE
    • 形成塑料制品的方法和装置
    • WO1990009267A1
    • 1990-08-23
    • PCT/US1990000399
    • 1990-01-19
    • ADOLPH COORS COMPANY
    • ADOLPH COORS COMPANYMOEN, Bruce, A.PARDUBICKY, Jaroslav, F.
    • B29B11/02
    • B29C33/0055B29C43/02B29C43/36B29C2793/0081B29K2067/00B29K2995/005
    • A method and apparatus for forming a workpiece blank of a relatively rigid plastic material, such as polyethylene therephthalate into a desired shaped product (322). The apparatus comprises an upper die (302) and a lower die (306) wherein the lower die (306) has first (308) and second (310) moveable parts which function to shear the workpiece blank from a continuous strip (316) of the relatively rigid plastic material and then to cooperate with the upper die (302) to reshape the workpiece blank into the desired shape. The second part (310) is also provided with escape passageways, for excess plastic material, located so as to orient the plastic material and thus increase the strength of the plastic material in the shaped product (322). The product can be a plastic tab used to apply pressure to a portion of a container end member so as to form an opening therein.
    • 一种用于将相对刚性塑料材料(例如邻苯二甲酸乙二醇酯)制成所需成型产品(322)的工件坯件的方法和装置。 该设备包括上模具(302)和下模具(306),其中下模具(306)具有第一(308)和第二(310)可移动部件,其用于从工件坯件的连续条带(316) 相对刚性的塑料材料,然后与上模(302)配合,将工件坯料重塑成所需的形状。 第二部分(310)还设置有用于多余的塑料材料的排出通道,其定位成定向塑料材料,从而增加成形产品(322)中的塑料材料的强度。 产品可以是用于向容器端部件的一部分施加压力以在其中形成开口的塑料片。