AUTOMATIC CORRECTING DEVICE FOR SLIDE POSITION IN PRESS

摘要

PURPOSE:To adjust the relation between the relative upper and lower positions of a lise and bolster so as to maintain the same in a prescribed range by controlling a position adjuster by the output from a temp. detector in such a manner that the top dead point position of the slide enters the prescribed range during the stoppage of the slide. CONSTITUTION:A temp. detector 60 is provided with a temp. detector 61 provided in a driving part of the slide and a temp. detecting circuit 62 connected thereto. The output from the circuit 62 of the part 60 is inputted to a multiplexer 43 and is inputted via an amplifier, etc. to a computer 42. The continuous position signal A and holding signal B of two bottom dead point detecting circuits 40 as well as the output from the circuit 62 are converted successively to the digital signals proportional thereto by the command from the computer 42 and are inputted to the computer 42. The four selector valves 33-36 of the slide position adjuster are controlled by the command from the computer 42.