Toray Industries, Inc.

Toshihiko Oka

Katsumi Hasegawa

Takao Sano

Masafumi Ogasawara

Toru Nakanishi

Between a feed roll feeding an entangled multifilament yarn to a measuring zone of degree of entanglement and a yarn-forwarding roll forwarding the yarn out of the measuring zone are disposed a first tension roll with a weight attached thereto, a pulley connected to a rotation meter and supported free to rotate, and a second tension roll with a weight attached thereto. A needle capable of piercing the yarn is provided between the pulley and either one of the first and the second tension rolls. Under the state wherein the needle pierces the yarn, an auxiliary weight is added to the first or the second tension roll, and the movement distance of the yarn from the position where the needle pierces the yarn to the position where the point of entanglement is engaged with the needle is measured by detecting the amount of rotation of the pulley. Next, the auxiliary weight is removed, an auxiliary weight is added to the other tension roll, and the movement distance of the yarn from the above position to the position where another point of entanglement is engaged with the needle is measured similarly. The measured movement distance of the yarn corresponds to the distance between the points of entanglement and gives a measure of the entanglement. By the measuring apparatus, the degree of entanglement in a yarn can be measured automatically with high accuracy without using a tension meter.

Apparatus for measuring the degree of entanglement in a yarn

Disclosed is an apparatus for producing a compact package of a textile yarn, comprising an accumulation container disposed to a machine frame in a rotatable condition about a longitudinal axis thereof, an inlet of a textile yarn formed at a position above said accumulation container in an eccentric condition to said longitudinal axis of said accumulation container, a compression means provided with a pressing head capable of being inserted into said accumulation container. Said pressing head is capable of reciprocally displacing up and down along said longitudinal axis of said accumulation container in such a condition that the working position of said pressing head is eccentric from said longitudinal axis of said accumulation container.

Growing community of inventors

Moriyama, Japan

Toshihiko Oka