Conveyors: fluid current – With means to control conveying fluid or movement of load in... – Control of conveying fluid
Patent
1985-07-24
1987-04-14
Nase, Jeffrey V.
Conveyors: fluid current
With means to control conveying fluid or movement of load in...
Control of conveying fluid
19105, 406 28, 406 70, B65G 5366
Patent
active
046574441
ABSTRACT:
A control system for a textile chute feed is disclosed which includes first and second fiber quantity signals generators (A, B) which generate first and second fiber quantity signals (52, 54) proportional to sensed fiber volumes in chute (16). A fiber delivery weight signal generator (C) generates a delivery weight signal (60) proportional to the delivery weight of the fibers in the fiber batt (44). A delivery roll signal generator (D) generates a signal proportional to the rotational speed of the delivery roll (38). The fiber quantity signal (52) is integrated with a delivery roll signal (68) in a first controller device (70) to produce a feed roll control signal (71). The delivery weight signal (60) and the delivery roll signal (68) are integrated in a controller (74) to produce a control signal (75) which controls the oscillation of an oscillating fiber compaction plate (28). When the delivery weight signal (60) falls below a preset delivery weight signal (78), an airflow control signal (76) is produced by the controller (74) to control an air pump (22) and increase the air pressure in the formation chamber (16) to assist in compacting the fibers (42). When the rotation of the delivery roll (38) falls below a preset delivery roll signal (80), the feed roll control signal (71) is modified to rotate the feed roll (18) in an intermittent manner. When the second fiber quantity level represented by signal (54) is reached, the controller (70) terminates the rotation of the feed roll (18) until the fiber supply is reduced to a safe level.
REFERENCES:
patent: 3169664 (1965-02-01), Meinicke
patent: 4387486 (1983-06-01), Keller et al.
patent: 4510647 (1985-04-01), Keller et al.
Edelbrock Daniel R.
Flint Cort
Hergeth Hollingsworth GmbH
Nase Jeffrey V.
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