Hot press including cam rod penetrating top platen
    2.
    发明授权
    Hot press including cam rod penetrating top platen 失效
    热压机包括凸轮杆穿透顶部压板

    公开(公告)号:US4963221A

    公开(公告)日:1990-10-16

    申请号:US101406

    申请日:1987-09-28

    摘要: The present invention relates to a hot press to manufacture a substrate in which a printed circuit is provided.The hot press comprising at least one of vertically movable heating plates, a freely elevating movable platen which elevates the heating plates to press a plate to be treated between the heating plates, and a detecting means for detecting the movement of the uppermost heating plate when said uppermost heating plate starts to be elevated, in which the elevating speed of the movable platen is changed to a lower speed by a signal generated from the detecting device.This low speed control is carried out as follows. Relief valves and direction control valves are provided at a primary side and secondary side, respectively, of a clamping cylinder into which a ram for elevating the movable platen is inserted, and due to the difference of pressures between the primary and secondary sides of the clamping cylinder, it is made possible to successively change the clamping force from zero by elevating the ram at low speed, thereby giving a desired clamping force to the ram.

    摘要翻译: 本发明涉及制造印刷电路的基板的热压机。 所述热压机包括至少一个可垂直移动的加热板,一个自由升降的活动压板,用于升高所述加热板以迫使所述加热板之间的待处理板被挤压;以及检测装置,用于当所述加热板 最高加热板开始升高,其中通过从检测装置产生的信号将可动压板的升高速度改变到较低的速度。 该低速控制如下进行。 泄压阀和方向控制阀分别设置在夹紧缸的初级侧和次级侧,用于升高可移动压板的压头插入该夹紧缸中,并且由于夹紧的一次侧和次侧之间的压力差 气缸,可以通过以低速提升冲头从而将夹紧力从零改变,从而给冲头提供所需的夹紧力。