EP 4310044 A1 20240124 - WINDING UNIT PROVIDED WITH A THREAD TENSIONING DEVICE OF A YARN, AND THE RELATED CONTROL METHOD
Title (en)
WINDING UNIT PROVIDED WITH A THREAD TENSIONING DEVICE OF A YARN, AND THE RELATED CONTROL METHOD
Title (de)
MIT EINER FADENSPANNVORRICHTUNG EINES GARNS VERSEHENE WICKELEINHEIT UND ZUGEHÖRIGES STEUERUNGSVERFAHREN
Title (fr)
UNITÉ D'ENROULEMENT POURVUE D'UN DISPOSITIF DE TENSION DE FIL D'UN FIL ET PROCÉDÉ DE COMMANDE ASSOCIÉ
Publication
Application
Priority
IT 202200015183 A 20220720
Abstract (en)
A winding unit (4) of a yarn (8) comprising a spool (20) on which said yarn (8) is wound and a reel (32) on which to wind the yarn (8) unwound from the spool (20), winding means (36) for performing the unwinding of the yarn (8) from the spool (20) and the winding of the yarn (8) on the reel (32), a thread tensioning device (56) for controlling the winding tension of said yarn (8) during its unwinding from the spool (20) and its winding on the reel (32). Advantageously the thread tensioning device (56) comprises a rotor (60) mechanically connected to an electric motor (64) for rotating around a control axis (X-X), wherein the yarn (8) unwound from the spool (20) is wound with a predetermined number of turns around a winding portion (68) of said rotor (60), the rotor (60) being positioned between the spool (20) and the reel (32), and further comprises a processing and control unit (80) operatively connected to said electric motor (64) and programmed to control the rotation of the rotor (60) so that the tension of the yarn (8) follows a set tension value.
IPC 8 full level
B65H 59/18 (2006.01)
CPC (source: CN EP)
B65H 59/18 (2013.01 - EP); B65H 59/36 (2013.01 - CN); B65H 63/00 (2013.01 - CN); B65H 2701/31 (2013.01 - CN EP)
Citation (applicant)
- US 5377923 A 19950103 - MATSUI ISAMU [JP], et al
- EP 3950551 A1 20220209 - SAVIO MACCH TESSILI SPA [IT]
- EP 0734990 B1 19990825 - SAVIO MACCHINE TESSILI SPA [IT]
- EP 1975105 A2 20081001 - MURATA MACHINERY LTD [JP]
- US 5499772 A 19960319 - MAEDA YOSHIYASU [JP], et al
- US 5738295 A 19980414 - FLAMM FRANZ-JOSEF [DE], et al
- IT 1276819 B1 19971103 - MURATA MACHINERY LTD [JP]
Citation (search report)
- [XAYI] EP 3865441 A1 20210818 - TMT MACHINERY INC [JP]
- [XYI] WO 2020075444 A1 20200416 - MURATA MACHINERY LTD [JP]
- [XI] EP 0499380 A1 19920819 - JONES STROUD & CO LTD [GB]
- [Y] EP 2684827 A2 20140115 - RIETER CZ SRO [CZ]
- [Y] EP 3371082 B1 20210217 - VANDEWIELE NV [BE]
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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4310044 A1 20240124; CN 117429955 A 20240123; CN 220578615 U 20240312
DOCDB simple family (application)
EP 23179621 A 20230615; CN 202310790627 A 20230629; CN 202321685906 U 20230629