| 摘要 |
<p>A number of stationary liners are longitudinally secured in parallel rows on the upper surface of a long hollow frame in the lateral direction, and several sets of movable liners are engaged in the gaps between the stationary liners so that they can move laterally and raised freely. A movable frame is so supported by rollers in the hollow frame as to be capable of being laterally guided. Several sets of lifting cylinders are installed on the upper surface of the movable frame, base plates are secured to the upper ends of the lifting cylinders, leg plates facing the movable liners project from the upper suface of each base plate, and the movable liners are secured to the upper ends of the leg plates. A guide cylinder for the movable frame is installed at the lower position in the vicinity of the side of the hollow frame, it is moved continuously in the engaged state on the upper surfaces of the stationary and movable liners to move a sand mold extracted from a molding machine, and the weight of the sand mold is supported by the movable liners during the feeding of the sand mold to reduce the friction with the stationary liners. The movable frame supporting the movable liners is supported via the rollers and is moved during the feeding of the sand mold, thereby feeding the sand mold with a light pressure to moderate the pressure applied to the sand mold, which could damage it.</p> |
