ES411990A1 - Cyclicly-operable machine adapted to produce and assemble cope and drag mold parts - Google Patents

Abstract

A machine intended to produce, simultaneously, parts of upper half-box and parts of lower mold-box and, thereafter, to assemble the latter in order to produce a composite molding, said mold-forming machine being cyclically operable and comprising, in combination, a frame that establishes a work station in which the mold parts are produced and a separation station, in which said mold parts are mounted, a fixed model holder plate support, located in said work station, a plate model holder carrying a model, associated with said support, upper and lower pressure plates located above and below said support, an upper reaction stage and a lower elevation stage located in said separation station, a box holder molding having a pair of upper and lower molding box section supports, vertically spaced and fixed relative to each other, half-box sections upper and lower molding which normally and separably rest by gravity on said molding box section supports, respectively, and located in spaced relationship, said carrier being able to move between a first position in said work station, in which said Molding half box section supports are located on both sides of the model holder plate support and a second position, in said separation station, in which said molding box section supports are interposed between said plates, means located in said station working and when the carrier is in its first position to lift the model holder plate and the mold box sections vertically from their respective supports, to mount said model holder plate and said mold box sections, in order to define upper and lower molding box cavities on opposite sides of the model plate, to introduce sand through compressed air into said cavities at the same time while the upper half-box section is above the lower half-box section and then compressing the sand into said cavities to produce upper half-box and lower mold half-box parts within the molding box sections , and to return the model holder plate and, also, the molding box sections with the mold parts therein to their normal positions, on their respective supports, means located in said separation station and that operate when said carrier is in its second position to move said molding box sections and said plates relative to each other, in order to lift the molding box sections vertically from their respective supports, to mount said molding box sections one on top of the other with the In order to establish the composite mold, to force said mold out of the molding box sections, and to return the sections it is mold box, empty, to their normal positions on their respective supports, and means to successively move said carrier between said first and second positions. (Machine-translation by Google Translate, not legally binding)