Molding machine for making flaskless molds
AssigneeMichael Achinger
InventorsMichael Achinger, Erhard Jaeger, Reinhold Lipp, Walter Streitenberger
Life of this patent
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Abstract
The invention discloses a molding machine for making flaskless molds, which has a minimum of structural component groups and units as well as of control devices and adjusting elements. The machine frame is embodied by a closed, symmetrical frame including hollow side parts which receive the pourable molding material and simultaneously perform the functions of tie rods and guidance for the molding flasks. Molding sand blowing-in openings are disposed on the inner walls of the side parts, and the openings are controlled by molding sand openings in the molding flasks in the manner of a valve slide.
Claims12
A molding machine for pressure shaping flaskless molds comprising a rectangular support frame including a pair of oppositely disposed side parts, two oppositely disposed molding flasks which are movable back and forth vertically and enclosed within said pair of side parts, a match plate carrier that can be moved in a horizontal direction into and from a position between said molding flasks, said match plate carrier including oppositely disposed match plates thereon, said rectangular support frame in which said molding flasks are enclosed absorbs any reactive forces arising during a pressure-shaping process, said side parts are hollow for receiving a pourable molding material, said rectangular frame being symmetrical in a central plane that is normal to a vertical central plane of the rectangular frame, said side parts containing oppositely disposed openings and each of said molding flasks having oppositely disposed openings in their sides which are in alignment with said openings in said side parts when said molding flasks are in a mold forming position relative to said match plates so that molding material can be transferred from said side parts to said molding flasks via said openings, and guide plates on said side parts for guiding said molding flasks for movement relative to said side parts.
A molding machine for pressure shaping flaskless molds comprising a rectangular support frame including a pair of oppositely disposed side parts, two oppositely disposed molding flasks which are movable back and forth vertically and enclosed within said pair of side parts, a match plate carrier that can be moved in a horizontal direction into and from a position between said molding flasks, said match plate carrier is embodied as a hollow flask and includes oppositely disposed match plates thereon, said match plate carrier is secured on an end of a supporting tube which passes through a vacuum container and is supported in an axially displaceable and rotatable manner, said rectangular support frame in which said molding flasks are enclosed absorbs any reactive forces arising during a pressure-shaping process, said side parts are hollow for receiving a pourable molding material, said rectangular frame being symmetrical in a central plane that is normal to a vertical central plane of the rectangular support frame, said side parts containing oppositely disposed openings and each of said molding flasks having oppositely disposed openings in their sides which are in alignment with said openings in said side parts when said molding flasks are in a mold forming position relative to said match plates so that molding material can be transferred from said side parts to said molding flasks via said openings, and guide plates on said side parts for guiding said molding flasks for movement relative to said side parts, said supporting tube including flowthrough openings through which air used to blow sand into a mold formed by said molding flasks and said match carrier plate is directed, a valve plate disposed inside said supporting tube for controlling air flow through said flow through openings in said supporting tube, said valve plate being controllable with a valve rod passing through said supporting tube, and said rectangular frame includes openings at one end for introduction of pallets and for removal of formed, finished mold halves.
Dependencies are inferred from the claim text.