Patent ID: 8418606

Claim:
A press angle control device for a press machine facility provided with a plurality of press machines constituting a press line, the press angle control device comprising: (a) a reference value output unit which outputs a press angle reference value; (b) a plurality of press angle detection units; (c) a plurality of speed command units; (d) a plurality of driving units, wherein one press angle detection unit, one speed command unit and one driving unit are provided for each of the press machines, wherein the press angle detection unit detects a press angle of the corresponding press machine and outputs a press angle detection value, wherein the speed command unit outputs a command speed value to a motor of the corresponding press machine on the basis of the press angle reference value and the press angle detection value, wherein the driving unit controls a speed of the motor of the corresponding press machine on the basis of the command speed value; and (e) a correction unit that corrects the command speed value or the press angle reference value so that a difference between the press angle reference value and the press angle for each of the press machines is within a predetermined range, and wherein the correction unit corrects the command speed value or the press angle reference value so that the command speed value increases until a time point when a pressing process starts.