Boots – shoes – and leggings
Patent
1988-12-12
1990-10-16
Smith, Jerry
Boots, shoes, and leggings
364468, 364478, 19159A, 57264, D01H 918, G06F 1302
Patent
active
049640542
ABSTRACT:
A method for exchanging cans of sliver at a work station of a textile machine which handles sliver includes interrogating the work station to determine the presence of an interruption in the sliver handling operation, generating a signal to indicate the presence of an interruption, interrogating the work station concerning the availability of sliver and the proper feed of sliver and generating a follow-up signal after the generation of the sliver signal if the work station is again operating after a sliver can exchange has been executed in response to a signal indicating the non-availability of sliver or an improper feed of sliver. The method optimize the use of the sliver can transporter which transports fresh sliver cans to the work stations, by eliminating unnecessary movements of the transporter. Depending upon the responses of the work station to the interrogatories concerning the availability of sliver and the proper feed of sliver, one can determine whether merely an interruption of the sliver feed has occurred or if the interruption occurred due to the emptying of a can of sliver, in which case a delivery of a fresh sliver can to the interrogated work station can be arranged upon the next movement of the sliver can transporter. According to one aspect of the method, a summation of the empty cans of the interrogated work stations is maintained and the sliver can transporter is sent on another transport cycle only when the summation of empty sliver cans equals a predetermined number preferably corresponding with the maximum complement of fresh sliver cans which the transporter can carry. According to another aspect of the method, the time elapsed since the sliver was first withdrawn from the replaced sliver can at the interrogated work station is monitored and the count of empty sliver cans is increased if the elapsed time exceeds a predetermined maximum operating time.
REFERENCES:
patent: 3922642 (1975-11-01), Tooka
patent: 4150534 (1979-04-01), Raasch
patent: 4537018 (1985-08-01), Tooka
patent: 4688300 (1987-08-01), Langen et al.
patent: 4735040 (1988-04-01), Pircher
Gordon Paul
Smith Jerry
W. Schlafhorst & Co.
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