| 摘要 |
PROBLEM TO BE SOLVED: To enhance a production efficiency in a continuous production line by remarkably shortening a molding working time by avoiding stopping of a link of a toggle mechanism at a dead line position where the link becomes a rectilinear state by obtaining a sufficient molding force by effectively utilizing the mechanism. SOLUTION: A mold 1a for molding is vertically movably supported via elevation guides 2 and 2. A horizontally threaded shaft 4 to be rotatably driven by a drive means 10 is arranged between the mold 1a and a base frame 21. A moving element 5 engaged with the shaft 4 and horizontally moved by a driving rotation of the shaft 4 is provided. A pair of upper and lower links 6a and 6b are pivotally coupled at their base ends to the element 5. The link 6a is pivotally coupled at its end to the mold 1a. The link 6b is pivotally coupled at its end to the frame 21 side. A control means for continuously moving the element 5 is provided so as to exceed a dead line L of the toggle mechanism in which the links 6a and 6b become a rectilinear state.
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