Textiles: fiber preparation – Working – Carding
Patent
1990-11-19
1992-09-29
Schroeder, Werner H.
Textiles: fiber preparation
Working
Carding
19303, D01G 908, D01G 1540
Patent
active
051505029
ABSTRACT:
A textile apparatus for sorting fibers according to their length. A fiber opening device loosens and separates raw textile fibers transported by an air flow created by an air blower along an air path. A fiber extracting device extracts fibers having an average length greater than or equal to a preselected length from the air flow to produce usable long fibers and creates a separated air flow containing usable short fibers having an average fiber length less than the preselected length for subsequent processing. The long fibers may be compacted into a fiber batt. The usable short fibers may be compacted into a fibrous batt or may be passed through further fiber extracting devices. The apparatus may include a batt former which includes a plenum into which fibers are delivered by the air propeller or blower. The air blower has an adjustable angle of incidence "a" to direct a jet of fiber laden air against a splash plate to cause fibers to be deposited in a fiber compacting chamber in a prescribed cross-directional profile. The apparatus further includes a density sensor which measures the cross-directional density profile of the compacted batt. A controller is responsive to the density sensor and controls the actuator to adjust the angular orientation of the flow directing device to compensate for deviations in the cross-sectional density profile of the compacted batt.
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Flint Cort
Izaguirre Ismael
Schroeder Werner H.
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