Global Patent Index - EP 4310044 A1

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

EP 4310044 A1 20240124 (EN)

Application

EP 23179621 A 20230615

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)

Citation (search report)

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