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1. 发明授权

US5039294A Apparatus for compacting powder 失效
标题翻译：压粉装置
公开(公告)号：US5039294A
公开(公告)日：1991-08-13
申请号：US357721
申请日：1989-05-26
申请人： Jean Gautier , Jean-Pierre Crepet
发明人： Jean Gautier , Jean-Pierre Crepet
IPC分类号： B30B11/08 , B29B9/08 , B29C43/32 , B30B11/00 , B30B11/02
CPC分类号： B30B11/027 , B30B11/005 , B30B15/0017
摘要： An adjustable powder compacting device for compacting a powder such as a cosmetic powder includes a control unit which electrically monitors and controls a hydraulic ram operated punch to compress the powder into a cup. The control unit causes the punch to perform: an approach stroke with a first regulated preset punch speed until the punch contacts the powder and exerts a first pressure on it, a debubbling stroke with a regulated second preset punch speed until the pressure exerted by the punch reaches a second preset pressure, and a compacting stroke at a constant third preset pressure for a preset period of time. These preset speeds and pressures are easily adjusted so that proper evacuation of gases from the powder and optimal compacting is readily achievable when the consistency of the powder changes. In specific embodiments, the device includes a rotatable disc for causing successive volumes of non-compressed powder to be compressed by the punch. In other embodiments, the device includes a plotting board for displaying the operation of the device such as the speed and pressure of the punch.
摘要翻译：用于压实诸如化妆粉的粉末的可调节粉末压实装置包括控制单元，其电气地监测和控制液压冲压机操作的冲头以将粉末压缩成杯。控制单元使冲头执行：具有第一调节预设冲压速度的进入冲程，直到冲头接触粉末并对其施加第一压力，具有调节的第二预设冲压速度的脱泡冲程直到冲头施加的压力达到第二预设压力，并且在预定时间段内以恒定的第三预设压力进行压实冲程。这些预设速度和压力容易调整，以便当粉末的稠度发生变化时，容易实现气体从粉末的适当抽真空和最佳的压实。在具体实施例中，该装置包括用于使连续体积的未压缩粉末被冲头压缩的可旋转盘。在其他实施例中，该装置包括用于显示装置的操作的绘图板，例如冲头的速度和压力。

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