METHOD AND DEVICE FOR FEEDING LENGTHY CONTINUOUS STRUCTURES TO FIBRE-RECEIVING MECHANISMS

摘要

A method and a device for feeding lengthy continuous fibrous structures to fibre-receiving mechanisms may be used in production spinning lines for feeding low-resistant fibrous slivers and rovings to fibre-receiving mechanisms of coilers, feeding devices of the spinning units of ring-spinning machines as well as of pneumatic-mechanical and pneumatic spinning machines for their direct feeding etc. The fibrous sliver (22) is fed at a constant speed to a transportation channel (1) by a mechanical transportation means (7) and is further transported by the air flow. The air is fed in the channel (1) at a constant mass rate of flow controlled by a throttle device (14) located on the line of a channel (4) for feeding the air from the source (5). The means (7) for mechanical transportation of the sliver is located in the cavity of a chamber (3) between the outlet opening of the feeding channel (2) and the inlet opening of the transportation channel (1) and is kinematically connected with a drive (10). At least a part of the channel (2) consists of a condensing funnel. In the outlet opening of the channel (4) may be located a flow damper in the form of a chamber (11) with a drainage system (12) and with a baffler. A receiver may be located on the line of the channel (4). The device may be provided with a means for removing the dust from the fibrous structure consisting of an additional chamber (16) with an inlet channel (17) and connected with a suction pneumo-system (18). The end outlet part of the transportation channel (1) is located at the fibre receiving mechanism (19).