EP 4074637 A1 20221019 - MACHINE AND PROCESS FOR UNWINDING AND WINDING YARN AT A SPEED GREATER THAN 1M/S
Title (en)
MACHINE AND PROCESS FOR UNWINDING AND WINDING YARN AT A SPEED GREATER THAN 1M/S
Title (de)
MASCHINE UND VERFAHREN ZUM ABWICKELN UND AUFWICKELN VON FADEN MIT EINER GESCHWINDIGKEIT VON MEHR ALS 1 M/S
Title (fr)
MACHINE ET PROCÉDÉ DE DÉROULEMENT ET D'ENROULEMENT DE FIL À UNE VITESSE SUPÉRIEURE À 1M/S
Publication
Application
Priority
- ES 202030104 A 20200210
- ES 2021070094 W 20210210
Abstract (en)
A machine for unwinding and winding yarn at a speed greater than 1 m/s and without twisting, comprising: a rotary means for the delivery of yarn, comprising a yarn delivery spool and a motor (M1), a rotary means for the collection of yarn, comprising a yarn collection spool, swinging means that define the geometry of the spool, and a motor (M2), where at least the yarn delivery means or the yarn collection means has a torque limiting means with a torque limitation value (Zmax) and always causing a slip velocity (Vdes), understood to be the difference in angular velocity, of the angular velocity of the shaft of the motor associated with the torque limiting means and the angular velocity of the spool associated with the torque limiting means, in such a way that it is possible to establish the tension of the yarn (Twork) measured between the swinging means and the collection spool during the transformation process, and consequently to be able to maintain said yarn tension (Twork) below a maximum tension (tmax) and above a minimum tension (tmin) by modifying the slip velocity (Vdes) alone.
IPC 8 full level
B65H 59/38 (2006.01); B65H 49/00 (2006.01); B65H 54/00 (2006.01); D01H 13/10 (2006.01)
CPC (source: EP ES)
B65H 49/00 (2013.01 - ES); B65H 54/00 (2013.01 - ES); B65H 54/16 (2013.01 - EP); B65H 54/2818 (2013.01 - EP); B65H 59/36 (2013.01 - EP); B65H 59/38 (2013.01 - ES); B65H 59/385 (2013.01 - EP); B65H 59/387 (2013.01 - EP); D01H 13/108 (2013.01 - ES); B65H 2701/32 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4074637 A1 20221019; EP 4074637 A4 20230621; CN 115052825 A 20220913; ES 2784920 A1 20201002; ES 2784920 B2 20210511; WO 2021160913 A1 20210819
DOCDB simple family (application)
EP 21754110 A 20210210; CN 202180012925 A 20210210; ES 202030104 A 20200210; ES 2021070094 W 20210210