Patent ID: 6890168

Claim:
A biaxial press molding system comprising: a frame; a rotation shaft being rotatably supported on the frame; a motor fixed to the frame for rotatively driving the rotation shaft; a die for inserting an object to be pressed; an upper cam installed at the rotation shaft which includes upper and lower portions formed on a lower surface thereof, the upper portion extending toward the die to a greater extent than the lower portion, the upper and lower portions being part of a first continuous contact surface of fixed configuration that extends along the lower surface in a generally annular fashion; an upper roller being capable of slide contacting with the first continuous contact surface of the upper cam, when the upper cam rotates, the upper portion of the first continuous contact surface drives the upper roller generally downwardly and the lower portion of the first continuous contact surface allows the upper roller to move generally upwardly; an upper punch moving up and down corresponding to the movement of the upper roller so that a pressure can be applied to the upper side of the object to be pressed; a lower cam installed at the rotation shaft which includes upper and lower portions formed on an upper surface thereof, the upper portion extending toward the die to a greater extent than the lower portion, the upper and lower surfaces being part of a second continuous contact surface of fixed configuration that extends along the upper surface in a generally annular fashion; a lower roller being capable of slide contacting with the second continuous contact surface of the lower cam, when the lower cam rotates, the upper portion drives the lower roller generally upwardly and the lower portion allows the lower roller to move generally downwardly; and a lower punch moving up and down corresponding to the movement of the lower roller so that a pressure can be applied to the lower side of the object to be pressed.