Textiles: fiber preparation – Working – Carding
Patent
1987-09-01
1987-09-01
Rimrodt, Louis K.
Textiles: fiber preparation
Working
Carding
19106R, D01H 538
Patent
active
046898573
ABSTRACT:
A web weight control system and method are disclosed wherein the actual weight of fibers supplied to a carding machine (36) are measured in a static condition in a weight pan (20). The supply roll (14) is controlled by computer (A) to supply a preset weight of fibers to weight pan (20). The weighed fibers are supplied to an apron feed (22) and to a pneumatic delivery system (28). Apron feeder (22) may be adjusted by adjusting the speed of an apron feed roll (50a). To maintain the fiber in a storage chute feed (32). Pressure sensed by a pressure gauge (52) is used to indicate quantity of fiber in chute feed (32) and pressure signal (53) is fed to computer (A) for control of delivery roll (50a). Card feed roll 62 which feeds fibers in the form of a batt (35) from chute feed (32) to the carding machine is controlled by computer (A) in synchronization with the speed of the carding machine as sensed by doffer roll (68). A preset web weight signal (48) is compared to an actual weight signal (46) representing the actual weight of fibers supplied by weigh pan (20). Any difference between the preset web weight and actual fiber weight is compensated for by adjustment of the operation of card feed roll (62). At the same time, adjustment of fiber supply roll (14) is made to adjust the weight of fibers supplied to pan (20) and maintain the feed of a preset weight of fibers.
REFERENCES:
patent: 4161052 (1979-07-01), Erben
patent: 4438548 (1984-03-01), Grunder
patent: 4494204 (1985-01-01), Hosel
patent: 4530134 (1985-07-01), Hosel
patent: 4574433 (1986-03-01), Brunnschweiler
Flint Cort
John D. Hollingsworth on Wheels, Inc.
Rimrodt Louis K.
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