Mold holding member and mold clamping device

Abstract

This object aims to improve the quality of a molded article. The mold die includes a die body (30), a tie bar holding portion (39) which is so formed as to project from the die body (30) at each corner of the die body (30) and holds a tie bar, and a reinforcement part which is so formed along the edge of the die body (30) as to project from the die body (30) and connects predetermined tie bar holding parts (39). Since the tie bar holding parts (39) and the reinforcement parts are so formed as to project from the die body (30), deformation of the mold die is suppressed, thereby suppressing deformation of a mold holding member and a mold. Furthermore, since a gap is not formed between the molds, such a problem doesn't happen that a molding material enters into the gap to form burrs or that leakage of a molding material through the gap occurs, thereby resulting in improvement in the quality of a molded article.

Description

Technical field [0001] The invention relates to a mold holding component and a mold clamping device. Background technique [0002] Conventionally, a molding machine, such as an injection molding machine, is set up as follows: a resin heated and melted in a heating cylinder is filled into a cavity space of a mold device at a high pressure, cooled in the cavity space, and molded by solidifying it Product. [0003] Therefore, the mold device is provided with a fixed mold and a movable mold, and the movable mold is advanced and retreated by operating the mold clamping device, and is contacted and separated from the fixed mold, thereby enabling mold closing, mold clamping, and Mold. The mold clamping device includes: a fixed platen for installing a fixed mold; a toggle support arranged opposite to the fixed platen; a connecting rod erected between the fixed platen and the toggle support; The movable platen for mounting the movable mold is arranged freely along the connecting rod; it ...

AI Technical Summary

Problems solved by technology

[0008] However, in the above-mentioned conventional mold clamping device, since the ribs are radially formed, as the four corners of the fixed platen are drawn to the bottom plate side, the stress generated in the peripheral portion of the fixed platen is easily transmitted to the bottom plate through the ribs. The central part, which causes the fixed mold to deform easily with its corresponding amount

[0009] As a result, the quality of molded products deteriorates

Images