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1. 发明申请

WO1984001348A1 IMPROVEMENTS IN VACUUM FILLING MACHINES 审中-公开
标题翻译：真空充填机的改进
公开(公告)号：WO1984001348A1
公开(公告)日：1984-04-12
申请号：PCT/AU1983000136
申请日：1983-09-29
申请人： KAWITE PACKAGING PTY. LTD. , WHITE, Neil, David
发明人： KAWITE PACKAGING PTY. LTD.
IPC分类号： B65B01/16
CPC分类号： B65B39/04
摘要： A filling head (10) for a vacuum filling machine of the kind used for packaging powdered or granular products such as foodstuffs (e.g. powdered milk). The filling head has a downwardly extending delivery duct (15) which terminates in a delivery or outlet port (16) of annular shape defined between said duct and an adjustable valve member (17) mounted axially of said duct. The valve member is shaped as a conical frustrum having the smaller end extending into said duct and adjustment is achieved by rotating said valve member on a threaded rod (18) extending axially within said duct. Thus the area of said delivery port may be varied to alter the compaction density of product in said duct and a supply hopper (21) to said duct. By reducing the port area the vacuum formed in a container being filled is increased as is the said density of product. The unique delivery port facilitates extremely high density packaging with a port of large area providing a rapid fill. An adjustable sealing plate (25) on the head provides a pneumatic seal to a container during a filling process and the plate may be moved relative to the delivery port to alter the volume of product introduced into the container. Hydro-pneumatic cylinders (23) adjust the plate and a pneumatic control circuit actuates the cylinders.
摘要翻译：一种用于包装粉末或颗粒状产品如食品（例如奶粉）的真空灌装机的灌装头（10）。填充头具有向下延伸的输送管道（15），其终止于限定在所述管道和轴向安装在所述管道上的可调整阀构件（17）之间的环形形式的输送或出口端口（16）。阀构件形成为具有延伸到所述管道中的较小端部的圆锥形孔口，并且通过在所述管道内轴向延伸的螺杆（18）旋转所述阀构件来实现调节。因此，可以改变所述输送口的区域以改变所述管道中的产品的压实密度和到所述管道的供给料斗（21）。通过减小端口面积，填充的容器中形成的真空度与产品的密度一样增加。独特的输送口促进极高密度的包装，大面积的港口提供快速填充。头部上的可调密封板（25）在填充过程中为容器提供气动密封，并且板可以相对于输送端口移动以改变引入容器的产品的体积。液压气动缸（23）调节板，气动控制回路致动气缸。

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