SIEBMASCHINE FUER DEN DURCHLAUF VON SIEBGUT

摘要

In a riddle (1) for sieving material with a basic frame (2), a sieve frame (3) suspended in the basic frame (2) via springs (9, 10, 11, 12), a sieve (4) containing the material, in which the sieve frame (3) is caused to oscillate by pressurising agent operated drive cylinders (26, 34) arranged between said sieve frame and the basic frame (2), a deliberate conveying and projectile motion of the sieve (4) is produced in that there is pilot valve (64) in the form of a copying valve to control the movement of the drive pistons (66) of the drive cylinders (26, 34) which is piloted via a control magnet arrangement (63) and imitates the movements of the armature (74) of the control magnet arrangement (63).