US 3,941,323 AGranted

Device for finding, extracting and temporarily positioning the end of the yarn in cops

AssigneeOfficine Savio S.p.A.

InventorsArmando D'Agnolo, Giovanni Favero

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Abstract

A device for finding, extracting and temporarily positioning the end of the yarn in cops. More particularly, a device that uses single-cop compartments, which move forward in steps, and wherein the cops lie projecting from both ends of the compartments and already correctly oriented. The part on the end of the bobbin is affected by three actions to extract the end of the yarn, two of them being mechanical and the other being pneumatic. Subsequently all the wound yarn is affected by a sucking action so as to pick up the end of the yarn with certainty, wherever it may be. The operations are carried out in four successive stations, wherein the cops are kept in rotation between suitable mandreltailstock groups except in the third station, where the cops are halted.

Claims13

Dependent claims

A device for finding, extracting and temporarily positioning the end of the yarn in cops, wherein the cops are correctly oriented in the compartments of a conveyor which moves forward in steps, the compartments being substantially horizontal, and wherein the ends of the cops project from the two ends of the compartments, comprising a first station with opposed rotating mandrel and tailstock, said tailstock being axially movable, and with extraction grippers which move axially and transversely;

a second station with opposed rotating mandrel and tailstock, said tailstock being axially movable, and with a vibrating eliminating spatula;
a suction means positioned below said stations;
a third station cooperating with said opening having a means for clamping a cop, a suction opening, shears and a means for retaining the end of the yarn;
a fourth station with opposed rotating mandrel and tailstock, said tailstock being axially movable, and having a suction conveyor means, which has an axial slit;
a means cooperating with said slit for positioning the end of the yarn, when found;
and a plate means for lifting cops, which operates in cooperation with mandrels and tailstocks of the first, second and fourth stations and functions in a line outside the ends of movable compartments.

3 more elements

Dependencies are inferred from the claim text.