초록 ▼

A system for distributing wax or a similar substance in semi-solid form is provided which includes a liquid wax supply system, a wax conditioning system including a heat exchanger which cools the wax to a semi-solid state and an accumulator for storing conditioned wax until needed, and a die press o

A system for distributing wax or a similar substance in semi-solid form is provided which includes a liquid wax supply system, a wax conditioning system including a heat exchanger which cools the wax to a semi-solid state and an accumulator for storing conditioned wax until needed, and a die press or similar work station which receives semi-solid wax from the accumulator in a continuous stream or flow. Such a system allows a lost wax die press to operate without need to manually open and reload the press with wax. An automated control system according to the invention allows die press reloading to occur automatically when needed, and operates the wax conditioning system as needed to maintain a supply of wax in the accumulator. Wax tunneling problems are avoided by means of a piston disposed in the heat exchanger which is movably interposed between hot liquid wax entering the heat exchanger and cooler, semi-solid wax leaving the heat exchanger.

대표청구항 ▼

A system for distributing a semi-solid substance to a work station, comprising: a heat exchanger for reducing the temperature of a liquid substance so that said substance assumes a semi-solid form; means for supplying said liquid substance to said heat exchanger; an accumulator disposed to receive s

A system for distributing a semi-solid substance to a work station, comprising: a heat exchanger for reducing the temperature of a liquid substance so that said substance assumes a semi-solid form; means for supplying said liquid substance to said heat exchanger; an accumulator disposed to receive said semi-solid substance from said heat exchanger and store said semi-solid substance therein; means for urging said semi-solid substance from said heat exchanger into said accumulator; and means for feeding said semi-solid substance from said accumulator to the work station; wherein said heat exchanger comprises a pair of concentric tubes defining an annular heat exchange chamber therebetween, a first pair of inlet and outlet valves which communicate with said chamber at opposite ends thereof, and a second pair of inlet and outlet valves which communicate with said chamber at opposite ends thereof, and said urging means comprises an annular piston disposed to reciprocate in said chamber which alternately urges said semi-solid substance therein out of one of said outlet valves and into said accumulator.