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    • 13. 发明公开
    • Improvements in or relating to filling heads
    • Füllköpfe。
    • EP0490607A1
    • 1992-06-17
    • EP91311416.1
    • 1991-12-09
    • BAGFILLA LIMITED
    • Davidson, James Ian
    • B65B39/00B65B39/04
    • B65B39/002B65B39/04
    • A filling head suitable for insertion into the top of a bag to be filled, comprising an inner cylindrical duct (10) defining an outlet (16) through which material is deposited into a bag from a hopper (14). An outer duct (21) extends concentrically around the duct (10) to provide an annular extraction duct (21) through which air borne material may be extracted from the neck of the bag being filled. Two hinged, semi-circular doors (24) are provided across the inlet (23) of the duct (21) and the outlet (16) of the duct (10). The doors (24) are operable to simultaneously close off or open both the inlet (23) and the outlet (16) when a bag is in position on the filling head. The doors (24) are operated manually by means of a linkage mechanism comprising a lever-and-crank assembly and two tension springs (20) attached between the said assembly and each door (24) respectively.
    • 一种适于插入要填充的袋的顶部的填充头,包括限定出料口(16)的内圆柱形管道(10),材料通过该出口(16)从料斗(14)沉积到袋中。 外管道(21)围绕管道(10)同心地延伸,以提供环形抽出管道(21),空气传播材料可以从填充的袋子的颈部中抽出。 两个铰接的半圆形门(24)设置在管道(21)的入口(23)和管道(10)的出口(16)之间。 当袋子在填充头上就位时,门(24)可操作以同时关闭或打开入口(23)和出口(16)。 门24通过连杆机构手动操作,该连杆机构包括杠杆和曲柄组件以及分别连接在所述组件和每个门(24)之间的两个拉伸弹簧(20)。