Liquid catalyst and hardener dispenser for core sand in foundry - has reservoir container, transport system, dispensing vessel connected to pressure and-or suction source

摘要

The dispenser consists of a reservoir container (2) for the catalyst or hardener and a conveyor which transports a selected quantity of the hardener or catalyst from the reservoir to a heater (6) using pressure or gravity. A dispensing vessel (7) between the reservoir container and heater contains an adjustable level limiter (12) and can be connected to a source (3) of suction and/or pressure via a pressure or suction line (13). The level limiter includes a float (11) connected to inductive or optical sensors. ADVANTAGE - Prevents degradation of mechanical functioning of dispensing system and ensures accurate dispensing over long periods despite high ambient temp.