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    • 3. 发明授权
    • Extruder head with a rotary die and process for lubricating this head
    • 具有旋转模具的挤出机头和用于润滑该头部的工艺
    • US4806086A
    • 1989-02-21
    • US44036
    • 1987-02-13
    • Peter BlochRobert Aste
    • Peter BlochRobert Aste
    • B29C47/02B29C47/24B29C47/28A23G1/20
    • B29C47/28B29C47/02B29C47/24B29C47/0016
    • The present invention relates to an extruder head with a rotary die which requires no ball or roller bearings. A die and a mandrel rod consisting of a cable guide are fixed in a cylindrical axial bore of an intermediate rotary sleeve driven by a driving mechanism. The sleeve has a substantially cylindrical outer surface which slidingly revolves in the axial bore of a distributing cartridge. The gliding surfaces are lubrified by the hot synthetic material. A clamping nut axially maintains the intermediate sleeve and allows the leakage flow of the synthetic material to be controlled. Such an extruder head may be utilized for the fabrication of helicoidal elements of synthetic material, especially helicoidal rods for optical fibers.
    • PCT No.PCT / CH86 / 00088 Sec。 371日期1987年2月13日 102(e)1987年2月13日PCT PCT 1986年6月16日PCT公布。 出版物WO86 / 07562 日期:1986年12月31日。本发明涉及一种不需要滚珠或滚子轴承的旋转模具的挤压机头。 由电缆引导件组成的模具和芯棒固定在由驱动机构驱动的中间旋转套筒的圆柱形轴向孔中。 套筒具有基本上圆柱形的外表面,该外表面在分配盒的轴向孔中滑动旋转。 滑动表面由热合成材料润滑。 夹紧螺母轴向地保持中间套筒并允许控制合成材料的泄漏流动。 这种挤出机头可以用于制造合成材料的螺旋形元件,特别是用于光纤的螺旋形杆。
    • 6. 发明授权
    • Device for changing color during the extrusion of a sheath around a
conductor
    • 用于在导体周围的护套挤出期间改变颜色的装置
    • US4761129A
    • 1988-08-02
    • US80556
    • 1987-07-07
    • Robert AstePeter Bloch
    • Robert AstePeter Bloch
    • B29C47/06B29C47/56B29C47/58H01B13/14B29C47/04
    • B29C47/128B29C47/025B29C47/0874B29C47/28B29C47/56H01B13/141H01B13/148B29C47/0016B29L2031/3462
    • Apparatus for extruding a sheath of synthetic material around a conductor, comprising an extruder head with two inlet conduits respectively connected to two orifices traversed by the conductor, and distributor means for selectively connecting the inlet conduits to a first and second extruder, the distributor means including a distributor communicating with the two extruders and to a first and second inlet conduit of the extruder head, and means for control of the distributor, the distributor having a mobile member which includes at least one pair of direct channels respectively providing communication of the first extruder with the first inlet conduit and of the second extruder with the second inlet conduit in a predetermined position of the mobile member, and a pair of inverted channels respectively providing communication of the first extruder with the second inlet conduit and of the second extruder with the first inlet conduit in another position of the mobile member. Different colors of synthetic material may be supplied to the respective inlet conduits, and the colors may be changed during production without wasting material.
    • 用于在导体周围挤出合成材料护套的装置,包括具有分别连接到由导体横穿的两个孔的两个入口导管的挤出机头部,以及用于将入口导管选择性地连接到第一和第二挤出机的分配器装置, 与两个挤出机连通的分配器和挤出机头部的第一和第二入口导管以及用于控制分配器的装置,分配器具有移动构件,该移动构件包括至少一对直接通道,分别提供第一挤出机 所述第一入口管道和所述第二挤出机具有所述第二入口管道在所述可移动构件的预定位置,以及一对反向通道,其分别提供所述第一挤出机与所述第二入口导管和所述第二挤出机与所述第一挤出机的连通 入口管道在移动构件的另一位置。 可以将不同颜色的合成材料供应到相应的入口管道,并且可以在生产期间改变颜色而不浪费材料。