B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/89
B22D 29/00 (2006.01) B22D 29/02 (2006.01)
Patent
CA 1101186
ABSTRACT OF THE DISCLOSURE A method for removing sand bales containing castings from molding boxes of poured foundry molds comprising the steps of: clamping the molding boxes together in a horizontal position; supporting the sand bales from below with a predeter- mined supporting force independently of the molding boxes, said predetermined supporting force being provided for at least a portion of the weight of the sand bales; applying to the molding boxes accelerative forces acting in a vertical direction while maintaining the supporting force for the sand bales,the accelerative forces being applied temporarily in a direction only which is opposite to a force resulting from the weight of said sand bales and said predetermined supporting force and being of a magnitude exceeding the magnitude of static frictional forces between the sand bales and the molding boxes in order to cause the sand bales to move out of the molding boxes; and removing the sand bales from the molding boxes. And an apparatus for corrying out this method.
318362
Buhrer Erwin
Robic Robic & Associes/associates
LandOfFree
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