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    • 6. 发明授权
    • Vibratory core for concrete pipe making machine
    • 混凝土搅拌机的振动芯
    • US3752626A
    • 1973-08-14
    • US3752626D
    • 1969-10-17
    • VIROPAC INC
    • TRAUTNER FKENT L
    • B28B21/06B28B21/14B28B21/16B28B21/28
    • B28B21/16B28B21/06B28B21/14
    • A novel vibrating core apparatus for use with a concrete pipe making machine. The novel apparatus includes a core, vertically movable into and out of a pipe form, a series of vibrators attached along the interior side wall of the core, an upwardly movable system operative by fluid pressure for raising and lowering the core, and an interlocking connection between a standard packerhead, which distributes cementitious material about the interior of the pipe form, and the upper portion of the core. The packerhead is designed to rotate while forming the pipe; the core does not rotate and the connecting means between the two is easily attached and disengaged from the packerhead.
    • 一种用于混凝土制管机的新型振动芯装置。 新颖的装置包括可垂直移动进出管形的芯,沿着芯的内侧壁附接的一系列振动器,可通过流体压力操作的向上可移动的系统,用于升高和降低芯体,以及互锁连接 在围绕管形式的内部分布水泥材料的标准封隔器与芯的上部之间。 封隔器设计成在形成管道时旋转; 芯部不旋转,并且两者之间的连接装置容易地与封隔器连接并脱离。