The utility model provides a dobby loom
yarn jumping automatic stop device, which comprises a device main body, a connecting piece and a
torsion spring piece, and the left upper end of the internal composition of the device main body is provided with a
yarn sensing piece used for sensing yarns during
yarn leading. Compared with the prior art, the device has the advantages that the device body, the connecting piece and the
torsion spring piece are additionally arranged, yarn drives the yarn sensing piece to rotate around the rotating shaft through the yarn hook piece, the left end of the telescopic rod moves upwards, the automatic stop pressing column moves upwards, and the center column does not make contact with the
pressure sensor; after the yarn is separated from the yarn hook piece, the yarn sensing piece automatically rotates under the action of the
torsion spring piece, the automatic stop pressing column moves downwards to press the pressing spring, the center column slowly gets close to the
pressure sensor, when a set of yarn does not drive the yarn sensing piece to rotate, the center column can make contact with the
pressure sensor to sense the pressure sensor, and the dobby loom is controlled to be
shut down through the frequency converter.
Yarn jumping automatic stop can be achieved, and the torsion spring piece can be disassembled and assembled by additionally arranging the device body, the connecting piece and the torsion spring piece.