EP 4130360 A1 20230208 - AIR-JET TYPE SPINNING DEVICE HAVING AN IMPROVED SPINNING STARTING SYSTEM AND RELATED AIR-JET TYPE SPINNING STARTING METHOD
Title (en)
AIR-JET TYPE SPINNING DEVICE HAVING AN IMPROVED SPINNING STARTING SYSTEM AND RELATED AIR-JET TYPE SPINNING STARTING METHOD
Title (de)
LUFTDÜSEN-SPINNVORRICHTUNG, DIE EIN VERBESSERTES SPINNSTARTSYSTEM AUFWEIST, UND ENTSPRECHENDES LUFTDÜSEN-SPINNSTARTVERFAHREN
Title (fr)
DISPOSITIF DE FILAGE DU TYPE À JET D'AIR AYANT UN SYSTÈME DE DÉMARRAGE DE FILATURE AMÉLIORÉ ET PROCÉDÉ DE DÉMARRAGE DE FILATURE DE TYPE À JET D'AIR ASSOCIÉ
Publication
Application
Priority
IT 202100020786 A 20210802
Abstract (en)
An air-jet type spinning device wherein the spinning starter system comprises the following steps:- pneumatic supply of the ejector or Venturi nozzle (36) at an initial maximum pressure p_max so as to recall the fibres within the a fibre introducer (20),- feeding of the fibres into the spinning chamber (16) and then in the spindle (24) of the spinning chamber (16) ;- pneumatic supply of the spinning chamber (16) with a main nozzle (40) so that the two jets of compressed air overlap each other,- gradual switching-off of the ejector or Venturi nozzle (36) according to an average pressure gradient in absolute value of less than 6 bar/s.
IPC 8 full level
D01H 1/115 (2006.01); D01D 5/00 (2006.01); D01D 13/00 (2006.01); D01H 4/02 (2006.01); D02G 3/32 (2006.01)
CPC (source: EP)
D01H 1/115 (2013.01)
Citation (search report)
- [I] US 2014237985 A1 20140828 - SCHÄFFLER GERNOT [DE]
- [A] JP H05125624 A 19930521 - TORAY ENG CO LTD
- [A] US 2003101710 A1 20030605 - WUST OLIVIER [CH], et al
- [A] US 2002026781 A1 20020307 - SHIGEYAMA MASAZUMI [JP], et al
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4130360 A1 20230208; CN 115701457 A 20230210; IT 202100020786 A1 20230202
DOCDB simple family (application)
EP 22179909 A 20220620; CN 202210762249 A 20220630; IT 202100020786 A 20210802