Patent ID: 9610710
Date: 2017-04-04
CPC Classifications: B22D,B29C,B30B,Y10T

Claim:
1. An arrangement for receiving a multi-part casting mold, comprising: a base frame; at least two opposed mold fixing elements arranged on the base frame, at least one of the mold fixing elements being arranged displaceably on the base frame, wherein front sides of the mold fixing elements are substantially facing each other and respectively hold at least one casting mold element, wherein at least one of the mold fixing elements comprises at least one displaceable locking element, which is displaceable from a first retracted position into a second extended position, in the second extended position the locking element engages into a locking device provided in the opposing mold fixing element and is lockable there; and a drive unit for displacing the locking element, the drive unit including a hydraulic main cylinder with a main piston and a pneumatic travel cylinder with a travel piston, wherein the travel cylinder is connected with the main piston of the main cylinder and is movable therewith, wherein the travel piston has a piston rod, which is connected with the locking element and is mounted concentrically and displaceably in the main piston, and wherein in an operating condition of a molding process, the travel piston abuts on the main piston, and the main cylinder provides a locking force to keep the mold closed during the molding process, wherein the main cylinder is operated with hydraulic oil and the travel cylinder is operated with pressurized air.