B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
B65G 15/58 (2006.01)
Patent
CA 2361815
A vacuum belt conveyor comprises an air-pervious endless belt (10), a first pulley (11) positioned at the upstream end of the conveyor and a second pulley (12) positioned at the downstream end of the conveyor, the pulleys guiding the belt (10) when the belt is travelling. The endless belt (10) comes into contact with a plate (20) having openings (21) which are connectable to a source of negative pressure. According to the invention, the belt (10), in the area of the upstream end of the conveyor, is in contact with a curved and perforated guiding surface (13), with the perforations, too, being connectable to a source of negative pressure. Preferably, the curved and perforated guiding surface is formed as the rotary shell (13) of the first pulley (11), which is formed as a suction roll.
Sim & Mcburney
Voith Paper Patent Gmbh
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