Process and apparatus for replacement of an empty with a full ro

Details Process and apparatus for replacement of an empty with a full ro Process and apparatus for replacement of an empty with a full ro

1986-10-08

1988-04-26

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

With preparation for doffing- or donning-type operation

57266, 57268, 57270, 57281, 242 355A, D01H 918

Patent

active

047396113

ABSTRACT:
The process for replacing an empty roving bobbin with a full roving bobbin in a spinning machine, particularly in a ring spinning machine, in a dispensing position by an automatic roving bobbin changing device comprises taking the full roving bobbin from a storage location and putting the full roving bobbin in place of the empty roving bobbin. The full roving bobbin associated with the dispensing position is taken from one of a plurality of stand-by positions in the storage location. To provide a more automatic operation the process further comprises testing whether the full roving bobbin is present in one of the stand-by positions adjacent the dispensing position before beginning the exchange and when the absence of the full roving bobbin is indicated inducing a relative motion between the roving bobbin changing device and the stand-by positions until the roving bobbin changing device stands adjacent to one of the stand-by positions having a full roving bobbin. An apparatus for performing the process of our invention is also provided.

REFERENCES:
patent: 3828682 (1974-08-01), Klein
patent: 3935821 (1976-02-01), Maier et al.
patent: 4438622 (1984-03-01), Pons
patent: 4473997 (1984-10-01), Kawasaki et al.

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