Title:
METHOD AND APPARATUS FOR ADJUSTING FLUCTUATION OF SLIVER WEIGHT IN CARD AND LIKE
Document Type and Number:
Japanese Patent JPS54142325
Kind Code:
A
Abstract:
A method of and apparatus for regulating out variations in the sliver weight on processing machines such as cards, carding engines, draw frames and the like wherein a first measuring device measures either the absolute cross-section or the relative variations of cross-section relative to a predetermined fixed desired value of a fibre sliver issuing from the machine. The first measuring device forms a corresponding first test signal. An additional measuring device is arranged at a point upstream of the first measuring device with respect to the direction of travel of the fibre material. The additional measuring device produces a second test signal corresponding to the relative variations in the cross-section of the fibre material relative to an average value for these variations formed over a predetermined period. The first and second test signals are used for controlling at least one regulating device which controls the cross-section of the fibre sliver.
Inventors:
BUERUNERU GURUNDERU
Application Number:
JP4259079A
Publication Date:
November 06, 1979
Filing Date:
April 10, 1979
Export Citation:
Assignee:
ZELLWEGER USTER AG
International Classes:
D01G23/06; D01G15/36; D01H5/38; (IPC1-7): D01G15/36
Domestic Patent References:
| JP44023148A | ||||
| JP45015216A |
Previous Patent: APPARATUS FOR OBTAINING CONTROLL SIGNAL CORRESPONDING TO DENSITY OF FIBROUS FABRIC IN CARD CYLINDER
Next Patent: JPS54142326
Next Patent: JPS54142326