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    • 9. 发明授权
    • Apparatus for making sheet elastomers mixed with short fibers
    • 用于制造与短纤维混合的片状弹性体的装置
    • US5429487A
    • 1995-07-04
    • US120528
    • 1993-09-14
    • Yoshitaka TajimaYasuhiro Jinnai
    • Yoshitaka TajimaYasuhiro Jinnai
    • B29C47/20B29C47/88B29C47/92B29C69/00B29K21/00B29K105/12B29L7/00B29C47/34
    • B29C47/883B29C47/0026
    • A tubular extruder for extruding an elastomeric material mixed with short fibers into a tubular form, with the short fibers circumferentially oriented, a cutter for axially cutting the tubular elastomer, and a development unit for developing the tubular elastomer with a longitudinal slit into a flat form are provided. Arranged between the extruder and the cutter is a guide unit used to guide the tubular elastomer with the help of its tubular section. Air is blown off from the tubular section of the guide unit whereby the tubular elastomer is cooled while at the same time its shrinkage in the circumferential direction is suppressed. The ununiformity of shrinkage is avoidable and the disorientation of short fibers is prevented. Further, the occurrence of flare is prevented by adjusting the tilt angle of the development unit so as to make a distance from a cut point to each lateral edge point at which the tubular elastomer begins to develop into a flat form equal to a distance from a particular point on the circumference of the tubular elastomer opposite the cut point to a middle end point of the tubular elastomer at which the tubular elastomer begins to develop into a flat form.
    • 一种管状挤出机,用于将与短纤维混合的弹性体材料挤压成管状,短纤维周向取向,用于轴向切割管状弹性体的切割器和用于将具有纵向狭缝的管状弹性体显影成平坦形式的显影单元 被提供。 在挤出机和切割机之间布置的是用于在其管状部分的帮助下引导管状弹性体的引导单元。 空气从引导单元的管状部分吹出,由此管状弹性体被冷却,同时其沿圆周方向的收缩被抑制。 收缩的不均匀性是可以避免的,并且防止短纤维的迷失方向。 此外,通过调节显影单元的倾斜角度来防止发生耀斑,以便使得从切割点到管状弹性体开始发展成等于距离的距离的平坦形状的每个侧边缘点 管状弹性体的圆周上的特定点与管状弹性体的中间端点的切割点相反,管状弹性体在该圆周处开始显现为平坦形式。