公开(公告)号：US06301949B1

公开(公告)日：2001-10-16

申请号：US09536326

申请日：2000-03-24

申请人： Andrew Gregory Beddoe ,  Ezra Lark Merrill ,  Trent Robert Wetherbee ,  Thomas Jacob Hagman

发明人： Andrew Gregory Beddoe ,  Ezra Lark Merrill ,  Trent Robert Wetherbee ,  Thomas Jacob Hagman

IPC分类号： B21J1310

CPC分类号： B21D43/16 ,  B21D5/02 ,  Y10T83/2198

摘要： A reciprocating press for forming workpieces includes a tilting table that supports the workpiece and positions it with respect to the press tooling as the press closes, and then is pivoted upward into an inclined orientation as the press opens so that the finished workpiece falls down the table and is automatically discharged from the press. A preferred embodiment has a lifting arm attached to an upper reciprocating press member that carries an upper forming tool such as a punch. The lower end of the lifting arm engages the tilting table such that the table is pivoted about a horizontal axis in concert with the upward and downward movement of the reciprocating press member. The press preferably also includes a safety door that is automatically closed before the press fully closes and is opened again as the press opens such that operator access to the moving press parts is prevented by the door during a press cycle. The safety door is powered by a system employing a pair of pneumatic cylinders between which air is pumped in response to the opening and closing of the press. The press also includes stroke-adjusting variable-length collars mounted on die posts, and one or more shims secured to the reciprocating press member, for varying a stroke distance of the press.

摘要翻译： 用于形成工件的往复式压力机包括：倾斜台，其支撑工件并在压力关闭时将其相对于冲压模具定位，然后当压力机打开时向上枢转到倾斜方向，使得成品工件落下 并自动从印刷机中排出。 优选实施例具有附接到上部往复式压力构件的提升臂，所述上部往复式压力构件承载诸如冲头的上部成形工具。 提升臂的下端与倾斜工作台接合，使得工作台与往复式按压构件的向上和向下运动相一致地围绕水平轴线枢转。 压机优选还包括一个安全门，其在压机完全关闭之前自动关闭，并且当压力机打开时再次打开，使得在冲压循环期间门被门阻止操作者进入移动的压力部件。 安全门由采用一对气动缸的系统提供动力，在该气缸之间响应于压力机的打开和关闭而抽吸空气。 压机还包括安装在模具柱上的行程调节可变长度套环和固定到往复式压力构件的一个或多个垫片，用于改变压力机的行程距离。