Method and apparatus for automatically exchanging roving bobbins

Details Method and apparatus for automatically exchanging roving bobbins Method and apparatus for automatically exchanging roving bobbins

1987-10-20

1988-09-20

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Monitor and control

57261, 57268, 57281, D01H 902, D01H 918, D01H 1332, D01H 1500

Patent

active

047715979

ABSTRACT:
A method and apparatus for automatically actuating roving bobbin exchange operations in a textile yarn spinning apparatus. The spinning stations are divided into equal groups and a roving bobbin exchange operation is actuated at each group by a suitable control system, e.g. a microprocessor, as a function of the number of spinning stations of the group identified as down with uncorrectable yarn breaks and as a further function of the total elapsed operating time of the group since the last bobbin exchange operation.

REFERENCES:
patent: 4176514 (1979-12-01), Stalder
patent: 4475331 (1984-10-01), Promoli et al.
patent: 4665686 (1987-05-01), Sumner et al.

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