US 5,901,774 A · Linear mold handling system with double-deck pouring and cooling lines

Abstract

The upper level of the pouring conveyor receives sand molds and conveys the empty molds to a pouring station wherein molten material is deposited therein to form castings. Each mold is provided with a supportive weight and jacket before pouring. After the castings have been poured, the molds are transferred to the lower level of the pouring conveyor for cooling purposes, and then back to the upper level to remove the weight and jacket. The sand molds are then transferred to the upper level of the cooling conveyor and are deposited into trays provided on the cooling conveyor. Each tray is adapted to receive a plurality of molds to enable the molds to move from serial to parallel movement. An indexable pusher arm is provided to accurately place each mold in a respective tray to insure proper spacing for uniform cooling. After each tray has traversed the upper and lower levels of the cooling conveyor, the molds are removed from the trays and the sand is broken away to reveal the castings for harvest. The volumetric capacity and cooling time can be adjusted simply by adjusting the number of trays disposed on the cooling conveyor.

Claims6

Dependent claims

A mold handling system for use in a sand mold casting machine having a mechanism for producing a plurality of sand molds, a mechanism for pouring molten material into the sand molds to form castings, a mechanism for cooling the molten material, and a mechanism for removing the sand from the cooled castings, the mold handling system comprising:

a two-tiered pouring conveyor having an upper track and a lower track, the sand molds being conveyed on the upper track to the pouring mechanism, the pouring conveyor having a first elevator to move the molds from the upper track to the lower track, and a second elevator for moving the molds from the lower track to the upper track;
and
a two-tiered cooling conveyor having an upper track, a lower track, and a plurality of trays disposed thereon, each tray being adapted to receive a plurality of sand molds side by side from the pouring conveyor, the cooling conveyor having a third elevator to move the trays from the upper track to the lower track, and a fourth elevator to move the trays from the lower track to the upper track.

Dependencies are inferred from the claim text.

Linear mold handling system with double-deck pouring and cooling lines

Life of this patent

Linear mold handling system with double-deck pouring and cooling lines

Life of this patent

Abstract

Claims6