Apparatus for casting

Details Apparatus for casting Apparatus for casting

1989-08-18

1990-09-04

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

425 84, 425435, B29C 3904

Patent

active

049540629

ABSTRACT:
An automated casting apparatus for use in slip casting is described. A rotatable table assembly is provided for retention of a plurality of plaster molds therein. The table assembly is provided with a clamp member to secure the molds in their relative positions within the table assembly to prevent slippage during rotation. The clamp is controlled by a rotational motor and will apply a predetermined amount of pressure on each of the molds by use of a load detector which will shut down the motor once the predetermined pressure has been attained. Once the molds are securely positioned within the table assembly, the assembly is rotated 90.degree. to its "fill" position where the automatic filler can sequentially fill each of the molds with liquid slurry or slip to a predetermined level whereupon the filled molds are allowed to sit in position for a predetermined setup time which establishes the wall thickness of the castings. The table assembly is then rotated 180.degree.; pouring the excess slip from the molds. The molds are allowed to sit in an inverted position for a predetermined amount of time to drain off the excess water and slurry from the inside cavity of each of the molds. Once the drip time has lapsed, the table assembly automatically is repositioned to its initial or load/unload position so that the molds and the castings therein may be removed. The system is preferably designed to allow for complete automation once the setup time and the drip times have been determined and the molds have been positioned within the table assembly.

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