| 摘要 |
An apparatus reciprocating a working member for high pressure working at a working region such as the closure of a mold in injection molding devices and the like is described. A working member is mounted for reciprocation along a line of advancement relative to a high force producing source for high pressure working at a working region. A rigid brace is pivotly mounted alongside of the line of advancement for movement between two positions. In a first position of the rigid brace, corresponding to a closure of a mold, the rigid brace couples the force producing source to the working member for high pressure mold closure working with the rigid brace parallel to the line of advancement. In a second position of the rigid brace, corresponding to opening of the mold, the rigid brace is pivoted generally transversely to the line of advancement to enable the working member to be fully retracted. Several embodiments are shown including working member actuated rigid braces for rapid cycling of the apparatus and adjustability of mold height variations. |
