Apparatus for controlled braking of a driven yarn engaging roll

Details Apparatus for controlled braking of a driven yarn engaging roll Apparatus for controlled braking of a driven yarn engaging roll

1988-10-13

1990-04-17

Schoeder, Werner H.

Textiles: manufacturing

Warp preparing or handling

28245, D02H 1312

Patent

active

049167839

ABSTRACT:
In a textile draw warping system having independently driven sets of draw rolls and an independently driven warp beam, synchronous braking of the driven components is controlled by individual pneumatic brakes at each driven component operated by a central programmable logic control system to brake the driven components at respective rates of deceleration preset to maintain constant speed ratios between the driven components during braking. Auxiliary control of dynamic braking and driving of the several drive motors corrects deviations in the driven components' predetermined rates of deceleration.

REFERENCES:
patent: 4074404 (1978-02-01), Schenk
patent: 4407767 (1983-10-01), Seaborn
patent: 4501710 (1985-02-01), Abbott et al.
patent: 4573245 (1986-03-01), Pfister
patent: 4669159 (1987-06-01), Bogucki-Land
"Draw-Warping-Mayer Warp Drawing Machine Developed Further"; Man-Made Fiber Year Book (CTI) 1986, pp. 104-105.
"Warp Preparation-Production of Warps from Flat Synthetic Filament Yarns"; Textile Month, May, 1984, pp. 48-50.
"Draw-Warping-Effect of Machine Downtimes in Draw-Warping on Yarn Properties"; Man-Made Fiber Year Book (CTI) 1987, pp. 108-119.
"Draw-Warping--Draw-Warping and Draw-Warp-Sizing System for POY and Undrawn Yarns"; Man-Made Fiber Year Book (CTI) 1986, pp. 108-110.
"Draw-Warping-Draw Warping: the State of the Art"; Man-Made Fiber Yearbook (CTI) 1986, pp. 106-107.
"New Systems for Draw-Beaming POY Yarns"; Fiber World, Sep. 1984, pp. 61-68.

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