公开(公告)号：WO2007077294A1

公开(公告)日：2007-07-12

申请号：PCT/FI2006/050514

申请日：2006-11-23

Applicant: LAHTI PRECISION OY ,  LEIVO, Matti, Osmo, Juhani

Inventor： LEIVO, Matti, Osmo, Juhani

IPC: B65D88/28 ,  B65D88/72 ,  B65G65/40

CPC classification number: F16K1/52 ,  F16K3/267 ,  G05D7/0186

Abstract: The invention concerns an apparatus for gravimetric dosing of powder material from a container. The apparatus comprises a container (1) and a valve located in a flow channel of material flowing from the discharge aperture of the container, said valve being provided for opening and closing the flow channel. The valve comprises a flow aperture (2) and a shutter movable with a sliding tolerance back and forth in the aperture. The shutter is a plug (3) movable in the perpendicular direction with respect to the plane of the aperture, having a length in the flow direction of the valve and having an envelope surface forming a sliding surface equivalent to the periphery of the flow aperture (2). In the sliding surface there is at least one groove (4) expanding in the flow direction of the valve.

Abstract translation: 本发明涉及一种用于从容器重量计量粉末材料的设备。 该装置包括容器（1）和位于从容器的排出孔流动的材料的流动通道中的阀，所述阀被设置用于打开和关闭流动通道。 该阀包括流动孔（2）和可在孔中来回滑动的活门。 快门是可相对于孔的平面在垂直方向上移动的插塞（3），其具有在阀的流动方向上的长度，并且具有形成与流动孔的周边等同的滑动表面的包络面 2）。 在滑动表面中存在至少一个在阀的流动方向上扩展的凹槽（4）。