Apparatus for automated mixing and transport of chemically bonde

Metal founding – Control means responsive to or actuated by means sensing or... – Control of feed material enroute to shaping area

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Details

141 94, 164456, 366 29, 366132, B22C 504, B22C 2500

Patent

active

045987599

ABSTRACT:
A central mixer is coupled to a transport bucket which moves from a home position to anyone of a number of core machines. An automated computer-based logic controller monitors the state of all core machines and responds to an appropriate demand signal from each core machine, with a priority response. The controller selects the proper mix recipe and prepares a sand mix of sand, binder and other additives in timed relation to the position of the transport bucket. The bucket is moved to receive the sand mix and delivers it to the proper core machine, and then activates the core machine, with maximum and efficient usage of the system. The available sand mix recipes are placed in the controller memory for the particular core box machines. The controller operates a series of timers to deliver sand weight, powder additives in sequence, and the necessary binder. Internal checks insure that the sand, powder additive and binder timers have properly operated before a "mull" timer establishes thorough mixing. The sand mixer continues to cycle to introduce an appropriate batch into the transport bucket. The bucket initiates a timer which is preset to the estimated return time to the mixer, and a mixer cycle starts only when the mixer time is less than or equal to such return time.

REFERENCES:
patent: 2695431 (1954-11-01), Davis
patent: 4121646 (1978-10-01), Rikker

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