JPS6455213A - Mold holding device for molding - Google Patents

Abstract

PURPOSE:To prevent cavity surfaces from coming into contact with each other and a product from being damaged at the opening and closing of molds by a structure wherein the holding parts of a top half and of a bottom half, which detachably hold the top and bottom halves of a mold, a column mechanism part equipped with a shaft part to pivot a horizontal shaft, which is provided in a column part, and a tilting mechanism part, which tilts the column part to a bed backward and forward, are provided. CONSTITUTION:At molding, a top half M2 is opened upwards integrally with a top half holding part 70 from a bottom half M1 by the lifting of a lifting part 45 developed with the cylinder device 43 of a column part 41. After that, the mold opening of the top half M2 is performed through the pivoting of the top half holding part 70, by pivoting the pivoting shaft 50 of a pivoting shaft part 55 through the predetermined angle. When the mold closing is intended, in reverse order as described above, the top half M2 is held horizontally by pivoting the pivoting shaft 50 of the pivoting shaft part 55 in the direction opposite to that just mentioned above through the predetermined angle and, after that, lowering vertically for closing. Further, when the top half holding part 70 is lifted by the cylinder device 43 of a column mechanism part 40, the top half M2 rises obliquely upwards (d), since the column part 41 is in tilt forward with a tilting mechanism part 90. After that, the top half M2 is opened by pivoting (e) the top half holding part 70 by means of the actuation of the pivoting shaft part 55.