ANTISTATIC DEVICE FOR PIPE MAKING MACHINE

摘要

PROBLEM TO BE SOLVED: To safely discharge high voltage static electricity regardless of the high speed rotation of a high speed rotary form 2 having a large or small diameter in the centrifugal force molding processing by the high speed rotary form 2 of a resin concrete pipe. SOLUTION: The receiving rollers 3 and 4, which are provided on both sides of the undersurface of the rotary form 2 and rotated in the same direction and comprise a non-conductive friction material, are provided on a machine stand 1 and a conductive roller 7 is rotatably supported on the upper end of the rising metal fitting 6 due to a weight 5 at the intermediate area between both receiving rollers 3 and 4.