Title (en)

Roving-piecing method in spinning frame and roving-piecing head for carrying out said method.

Title (de)

Verfahren und Vorrichtung zum Verbinden von Vorgarn in Spinnmaschinen.

Title (fr)

Procédé et dispositif pour rattacher des mèches dans des métiers de filature.

Publication

EP 0213962 A2 19870311 (EN)

Application

EP 86306816 A 19860903

Priority

• JP 19391985 A 19850904
• JP 19392085 A 19850904

Abstract (en)

Disclosed is a roving-piecing method in which, when the wound diameter of a roving bobbin suspended from a bobbin hanger, from which a roving is withdrawn, is reduced, and roving exchange becomes necessary, the end of a roving on a full bobbin to be exchanged with the small bobbin is taken out, the end of the roving is held and guided above a trumpet, the end of the roving is piled on the roving of the small bobbin during spinning, holding of the end of the roving of the full bobbin is released, and then, the roving of the small bobbin is cut to effect roving piecing. According to this roving-piecing method, roving piecing can be accomplished in a short time during the operation of a spinning frame, and automation of the roving-piecing operation can be attained. A roving-piecing head for use in carrying out this roving-piecing method comprises a body having a roving guide groove formed in a top end portion thereof, a roving holding lever mounted on the body, which is capable of reciprocating across the guide groove, and a roving holding member arranged on the body on both sides of the guide groove to co-operate with the roving holding lever for holding a roving.

IPC 1-7

D01H 15/00

IPC 8 full level

D01H 9/00 (2006.01); D01H 15/00 (2006.01)

CPC (source: EP)

D01H 9/005 (2013.01); D01H 15/00 (2013.01)

Designated contracting state (EPC)

CH DE FR GB IT LI

DOCDB simple family (publication)

EP 0213962 A2 19870311; EP 0213962 A3 19871104; EP 0213962 B1 19910904; DE 3681233 D1 19911010

DOCDB simple family (application)

EP 86306816 A 19860903; DE 3681233 T 19860903