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    • 12. 发明申请
    • MOULDING METHODS AND APPARATUS
    • 成型方法和装置
    • US20140217645A1
    • 2014-08-07
    • US14232113
    • 2012-07-11
    • Karl-Heinz Schmitt
    • Karl-Heinz Schmitt
    • B29C45/28B29C45/23
    • B29C45/281B29C45/1635B29C45/23B29C45/572B29C2045/2687B29C2045/2855B29C2045/577
    • Valves (110) and other apparatus, methods of moulding and moulds (112) are provided for the moulding of materials such as injection or injection-compression moulding of molten thermoplastic materials. The valve includes a valve element/piston (126) that is orientated at 60 degrees relative to the mould's bounding wall (116) and that can reciprocate in a barrel (122) and that can rotate. The piston (126) h a leading face (128) that is also orientated at 60 degrees, so that the flow passage/melt channel (118) extends past the leading face (128) when the valve (110) is open and the leading face (128) forms part of the bounding wall of the mould cavity (114) when the valve is closed. The piston (126) is advanced or retracted a very short distance and is rotated through 180 degrees, to open and close the valve (110). The other apparatus include multiple flow passage and valve elements that feed single or multiple mould cavities to allow improved moulding of articles in conventional injection moulding machines through multiple flow passages.
    • 提供阀(110)和其它设备,成型和模具(112)的方法用于模制诸如熔融热塑性材料的注射或注射压缩成型的材料。 阀包括相对于模具的边界壁(116)定向成60度的阀元件/活塞(126),并且可以在筒体(122)中往复运动并且可旋转。 活塞(126)还具有导向面(128),其还定向在60度处,使得当阀门(110)打开时,流动通道/熔体通道(118)延伸超过引导面(128),并且引导面 当阀关闭时,(128)形成模腔(114)的边界壁的一部分。 活塞(126)前进或缩回非常短的距离并且旋转180度,以打开和关闭阀门(110)。 另一种装置包括多个流动通道和阀元件,其供给单个或多个模腔,以允许通过多个流动通道改进常规注塑机中的制品的模制。