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    Hydromechanical clamp
    1.
    发明授权
    Hydromechanical clamp 失效
    水力夹

    公开(公告)号：US3669599A

    公开(公告)日：1972-06-13

    申请号：US3669599D

    申请日：1970-12-08

    申请人： NAT AUTOMATIC TOOL CO

    发明人： SNIDER THEODORE O ,  TEEPLE MICHAEL D

    IPC分类号： B29C45/17 ,  B29C45/67 ,  B29F1/00

    CPC分类号： B29C45/1751 ,  B29C45/6707

    摘要： AN INJECTION MOLDING MACHINE HAVING MOLD HALVES WHICH RECEIVE PRESSURIZED PLASTIC THEREIN. THE MACHINE INCLUDES A BASE, A FIRST PLATEN FIXED ON THE BASE, FOR HOLDING ONE OF THE MOLD HALVES, AND A BACK PLATE MOUNTED ON THE BASE AND SPACED FROM THE SAID FIRST PLATEN. TIE RODS PASS BETWEEN AND ARE MOUNTED TO THE FIRST PLATEN AND THE BACK PLATE. A SECOND PLATEN IS MOVABLY CARRIED ON THE TIE RODS BETWEEN THE FIRST PLATEN AND THE BACK PLATE AND HOLDS THE OTHER OF THE MOLD HALVES. PROJECTING HOLLOW MEMBERS ON THE BACK PLATE EXTEND TOWARD THE MOVING PLATEN AND TOTALLY SURROUND THE TIE RODS. OPEN PORTIONS ARE PROVIDED ON THE SECOND PLATEN FOR RECEIVING THE PROJECTING MEMBERS WHEN THE MOLD HALVES ARE IN THE OPEN POSITION. DRIVE MEANS ADVANCE THE SECOND PLATEN TOWARD THE FIRST PLATEN FOR CLOSING THE MOLD HALVES. BLOCKING MEMBERS ARE INTERPOSED BETWEEN THE PROJECTING MEMBERS AND THE MOVING PLATEN WHEN THE MOLD HALVES ARE IN THE CLOSED POSITION. LOAD CELLS ARE PROVIDED ON EACH OF THE TIE RODS FOR CLAMPING THE MOLD HALVES TOGETHER DURING INJECTION OF PRESSURIZED PLASTIC, THE LOAD CELLS DRIVING THE BACK PLATE, THE PROJECTING MEMBERS, AND THE SECOND PLATEN WITH ONE MOLD HALF THEREON INTO CLAMPING RELATIONSHIP WITH THE FIRST MOLD HALF ON THE FIXED PLATEN.