REMOVAL OF UNNECESSARY PORTION BY CUTTING IN MOLDING PERIOD

PURPOSE:To increase the productivity of moldings by eliminating the need for finishing process of cut portions by a method in which unnecessary portions integrally connected with moldings are bent by pushing at the connected portion and cutting off. CONSTITUTION:A sloped face 24a and a projection 24...

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1. Verfasser: OOISHI MINORU
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To increase the productivity of moldings by eliminating the need for finishing process of cut portions by a method in which unnecessary portions integrally connected with moldings are bent by pushing at the connected portion and cutting off. CONSTITUTION:A sloped face 24a and a projection 24b projected downwards, provided to the block 24 of an unnecessary portion remover for a molding are set in the face of the upper part of the projected unnecessary portion 12 from the side wall of each molding 2 set below the device. In the downward movement of the block 24 by operating an air cylinder 22, the upper end of unnecessary sprue portion 10 is contacted with the middle of the sloped face 24a, and then the upper end is slided toward the direction of separating from the molding 2 along the sloped face 24a. In this case, gate portion 11 is bent by pushing, and the upper end of the sprue portion 10 is coupled with the corner formed by the sloped face 24a and the projection 24b. The block 24, however, is further lowered, and the unnecessary portion 12 is broken at the most weak portion of mechanical strength, or from the connected boundary between molding and gate portion 11, and dropped from the molding.