Adevice for disabling and enabling one or more needles in a quilting machine or a multi-needle embroidery machine

摘要

A device for disabling and enabling one or more needles in a quilting machine, a multi-needle embroidery machine, or the like, is described.;The device comprises a linear actuator (24) adapted to carry a needle (22) and to keep the latter, for a predetermined time, in a raised position relative to fabric (10) to be sewn.;The device includes as well stitching yarn (44) return means (38) being actuated when needle (22) is disabled, in order to subject to a limited tension the portion of stitching yarn located between the disabled needle and the fabric to be sewn, to prevent the yarn from becoming tangled and from breaking.;Furthermore, during the entire operating stage as ment­ioned above, the known yarn tensioning device (48) through which the stitching yarn is led before arriving to the needle, is disabled.