Global Patent Index - EP 1167590 A3

EP 1167590 A3 2002-09-11 - Fibre length measuring

Title (en)

Fibre length measuring

Title (de)

Faserlängenmessung

Title (fr)

Mesure de la longeur de fibres

Publication

EP 1167590 A3 (DE)

Application

EP 01114142 A

Priority

CH 12432000 A

Abstract (en)

[origin: EP1167590A2] At a carding machine, the burl count and/or fiber staple length is measured before and/or after a carding unit in the carding assembly. The measurements are passed to a control, to determine the optimum machine settings from stored data, to activate at least one actuator to alter the gap between the feed roller and licker-in and/or the clamping gap and/or the clamping force of the feed trough at the licker-in. The carding machine control triggers at least one actuator to vary the rotary speed of the licker-in(s). One actuator in the system affects the transfer factor to pass a part of the fiber mass at the carding drum to the doffer. At least one actuator varies the card output, especially the delivery speed or the sliver weight. The optimized machine setting data are applied to at least one actuator which can act on the burl count and/or fiber staple length and especially for an initial cleaning machine or an actuator at the filling shaft in front of the card. The burl count and/or fiber staple length is measured before and/or after sections of the cleaning machine, to be used to derive the optimized machine setting data at the control to be applied to the cleaning machine or an initial fiber processing station. At least one actuator acts on the rotary speed of the cleaning or opening roller, and at least one actuator sets the grid or the grid angle, and another actuator sets the clamping gap and/or the clamping force of the feed trough to the cleaning or opening roller. The cleaning machine is a bale breaker with fine and coarse cleaning stages. The control gives optimized machine setting data based on stored characteristic fields or data sets. At least two control functions are used in combination with each other. An Independent claim is included for a carding machine with actuators to affect various operating parameters. Preferred Features: The burl count and/or fiber staple length measurement, and their evaluation, are carried out while the carding machine is in operation.

IPC 1-7 (main, further and additional classification)

D01G 31/00

IPC 8 full level (invention and additional information)

D01G 31/00 (2006.01)

CPC (invention and additional information)

D01G 31/006 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1167590 A2 20020102; EP 1167590 A3 20020911; US 2002152583 A1 20021024; US 6611994 B2 20030902

INPADOC legal status


2010-06-23 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20100105

2008-03-26 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20080226

2003-05-28 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): CH DE GB IT LI TR

2003-05-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030227

2002-09-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI

2002-01-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-01-02 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI