Bidirectional reducing die with automatic ejection structure

Abstract

The invention discloses a two-way reducing mold with an automatic ejection structure, relates to the field of reducing molds, and solves the problems that an existing device still needs to be hydraulically driven to demold after extrusion forming, many steps are needed, and the operation is tedious, and the following scheme is adopted: the two-way reducing mold comprises a lower mold seat and an upper mold seat on the top side of the lower mold seat; a reducing mold is clamped between the lower mold seat and the upper mold seat; a lower spring groove, a lower sealing groove and a lower die groove are formed in the inner side of the lower type base from bottom to top, and a lower ejector rod is arranged in the bottom of the lower spring groove in the lower type base in a sliding and sleeved mode. According to the two-way reducing mold with the automatic ejection structure, through arrangement of a lower rectangular spring and an upper rectangular spring on the inner side of the lower mold base and the inner side of the upper mold base, the lower rectangular spring and the upper rectangular spring are both in a compressed state during extrusion forming, and during demolding, the upper mold base moves upwards, the lower rectangular spring on the inner side of the lower mold base is reset due to the elasticity of the lower rectangular spring; and the lower plugging head and the reducing die on the top side are synchronously extruded to move upwards, so that the automatic ejection effect is achieved.