Automatic control device for adjusting the suction exerted by suction flutes in cigarette transfer drums

摘要

An automatic control device for adjusting the suction force exerted by the flutes of a rotary transfer drum for rod-like articles such as cigarettes includes an adjustable control device operatively interposed between the suction ports of the flutes and a source of vacuum. The adjustable control device is actuated by a pilot unit in response to a tachymetric signal which is representative of the speed of production of the cigarette-making machine.