Assisting device for screening and declogging of the vibrating structure and installation and ultrasonic sieving device equipped with such.

摘要

Assisting device for sieving and rodding fabric sieve, comprising a vibrating structure which is in contact with the screen cloth and which is set in vibration by a wave generator, in particular ultra sound, consisting of said structure vibrating a part (4, 33) having a base (5, 34) whose lower face (8, 36) is connected to the generator (7, 32), characterized in that said piece comprises a bearing surface (6, 35) one end of which is at least in integral contact with the cloth (3, 37), having determined the dimensional relationships of said part, in particular the thickness e1 of the support surface relative to espesore2dela baseylaanchural1 dela support surface to the total width 12 of the part at the level of the support surface so that the vibratory motion of the end 10 of the part 4 in relation to the movements produced by the generator 7a wave is amplified.