Molding machine for molding-sand cores

Details Molding machine for molding-sand cores Molding machine for molding-sand cores

1986-09-16

1987-10-20

Hart, Charles

Metal founding

Means to shape a forming surface

Including means for compacting particulate fluent mold...

164202, 164228, 425580, B22C 1524

Patent

active

047007672

ABSTRACT:
A molding machine for molding-sane cores employing openable dies and an injection head with a cylindrical chamber, comprising a compressed air tank coaxial with the chamber, shutters for feeding air at the top of the chamber, movable supports for the head for shifting the head both horizontally and vertically from the working position to a lateral one, a raising piston connected to the lower die for vertically shifting the lower die against and away from the fixed upper die, a drilled gassing plate for gassing the core formed within the closed dies, mounted movable away from and towards the fixed upper die, a plate having dowels for raising and extracting the core formed by the lower die after it has been lowered relatively to the fixed one, an openable collet movable away from and towards the core in extracted position from the lower die and movable outside the machine to a finishing (trimming) station, programmed control and operating devices for obtaining the sequence of the operating phases, and extraction of the finished core.

REFERENCES:
patent: 3229336 (1966-01-01), Hunter et al.
patent: 3556195 (1971-01-01), Lund
patent: 4559989 (1985-12-01), Kawai

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