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US 4,657,444 AGranted
Synchronized chute feed control system and method
AssigneeHergeth Hollingsworth GmbH
InventorAkiva Pinto
Life of this patent
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AssigneeHergeth Hollingsworth GmbH
InventorAkiva Pinto
Estimating the term…
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.
A control system for a chute feed of the type which includes a feed roll for feeding fiber to a fiber batt formation chute, an oscillating plate mounted for compacting the fibers in the formation chute, a pair of delivery rolls for discharging the compacted fibers in the form of a fiber batt, and airflow means for delivering a flow of fiber-laden air into said formation chute, said control system comprising a delivery weight signal generator means for sensing a function of the weight of fiber in said fiber batt and generating a delivery weight signal representative of said quantity of fibers, a first fiber quantity signal generator means for sensing a quantity of said fibers in said formation chute and generating a first fiber quantity signal representative of said quantity of fibers, a control means for receiving said delivery weight signal and said first fiber quantity signal for generating an oscillating plate control signal for controlling the rate oscillation of said oscillating plate within said formation chute in response to said delivery weight signal, and for also generating a feed roll control signal for controlling the rate of rotation of said feed roll in response to said first fiber quantity signal, wherein said control system further comprises:
A control system for a chute feed of the type which includes a feed roll for feeding fibers to a formation chute, means for compacting the fibers in the formation chute, and delivery roll means for discharging the compacted fibers in the form of a fiber batt, said control system comprising;
A control system for use in a textile chute feed of the type which includes a formation chute in which fibers are compacted by an oscillating plate, a rotating delivery roll means at the bottom of said formation chute for discharging said compacted fibers in the form of a fiber batt, airflow means for delivering a flow of fiber-laden air into said formation chute, drive means for oscillating said oscillation plate, wherein said control system comprises:
The method of controlling a textile chute feed of the type which includes a feed roll for feeding fibers to a formation chute, compaction means for compacting fibers in the formation chute, and a rotating delivery roll for discharging said compacted fiber in the form of a fiber batt, wherein said method comprises:
A method of controlling a textile chute feed of the type which includes a feed roll for feeding fibers to a formation chute, an oscillating plate for compacting fibers in the formation chute, and a rotating bottom delivery roll for discharging said compacted fibers in the form of a fiber batt, wherein said method comprises:
Dependencies are inferred from the claim text.