Abstract A system for automatically sensing and controlling the temperature of each of a plurality of molds to within a desired temperature range therefor, each such mold having a cooling fluid control valve associated therewith and each mold being intermittently positioned at a station where each respective valve is adjusted in accordance with an adjustment signal produced by comparing a signal representing the sensed temperature of the respective mold and a set point signal representing the desired temperature for such mold. Valve adjustment signals are also stored and, upon each next arrival of each respective mold at said station, the stored adjustment signal associated with such mold is read out and employed for preliminarily controlling the valve adjustment apparatus to its condition to which it was controlled during the immediately preceding valve adjustment for the respective mold.
A control system In accordance with claim 1 and in which said mold identifying means employs a discrete binary code associated with each said mold.
Claim 2
Dependent Claim
336 words
In combination with a machine for forming articles from heated or molten material and which intermittently positions each of a plurality of article forming molds at a plurality of stations including material charging, article forming, article takeout and mold temperature sensing stations, a mold temperature control system comprising; A. individual adjustable means associated with each said mold for supplying cooling fluid to the respectively associated mold, B. means for sensing the temperature of each said mold positioned at said temperature sensing station and producing signals representative of each respective mold temperature, C. means for producing identification signals for each respective mold arriving at said temperature sensing station, D. means responsive to said identification signals for producing preset signals representative of a desired temperature for each respective mold, E. means receiving and responsive to the sensed preset signals for each respective mold positioned at said temperature sensing station to produce an adjustment signal having a value representative of any adjustment required in said associated cooling fluid supply means for cooling the respective mold to its desired temperature prior to its next arrival at said sensing station, F. means associated with each said mold for receiving and storing the adjustment signal produced for the respective mold, G. means at said sensing station for adjusting said cooling fluid supply means in accordance with the value of adjustment signals supplied to such adjusting means, H. means actuated in a time relationship with the arrival of each mold at said sensing station for reading out and supplying the stored adjustment signal for the respective mold to said adjusting means for preliminary actuation of such adjusting means without actuation of the cooling fluid supply means for the respective mold, and I. means thereafter actuated in a time relationship with the arrival of the respective mold at said sensing station for supplying the produced adjustment signal for such mold to said adjusting means for further actuation of such adjusting means and corresponding actuation of the cooling fluid supply means for the respective mold.
Claim 3
Dependent Claim
24 words
A control system in accordance with claim 3 and in which said mold identification signals comprise a discrete binary code for each said mold.