Nippo Corporation

Howa Machinery, Ltd.

Nippon Ltd.

Yasushi Iwama

Yutaka Tanaka

Hiroshi Enomoto

Hideyuki Goto

Teruhiko Sato

Ryoji Asakawa

Susumu Yokoi

Koji Okada

The present invention is for spinning ring for winding a yarn fed from a raw yarn bobbin on a bobbin including a stationary ring that is mounted on a ring rail. A rotary ring is disposed inside and concentrically with the stationary ring for rotation about the central axis thereof. The bobbin is disposed inside and concentrically with the rotary ring for rotation about the central axis thereof. A traveler is disposed on the rotary ring for revolution in the circumferential direction of the rotary ring to guide the yarn fed from the supply bobbin with respect to the bobbin. When the bobbin is rotated substantially at normal operating speed, the speed of the traveler and the rotary ring are rotated substantially in unison with each other relative to the stationary ring.

Spinning ring

A rotary spinning ring structure for use on a spinning frame or the like comprises, as principal components, a stationary tube fixedly supported on a ring rail, a slide ring, a rotating tube assembly supported for rotation by the slide ring on the stationary tube, and a balancing mechanism incorporated into the rotating tube assembly. The rotating tube assembly comprises a rotating tubular body made of an antistatic synthetic resin material, a circular brake ring made of an antistatic synthetic resin material and joined to the rotating tubular body, and a dust cover made of an antistatic synthetic resin material and put on a middle portion of the rotating tubular body. Each of the antistatic synthetic resin materials forming the rotating tubular body, the brake ring and the dust cover is a mixture of a synthetic resin, and fibers, powder or flakes of a conductive material, such as carbon and has a low volume resistivity.

Rotary spinning ring structure

A spinning ring structure (10) for twisting a fleece into a yarn and taking up the yarn on a bobbin (82) comprises a stationary ring (20) fixedly mounted on a ring rail (74), a rotary ring (30) disposed for rotation about its own axis inside the stationary ring (20) coaxially therewith so as to surround the bobbin (82) disposed with the stationary ring (30). A traveler (50) is put on the rotary ring (30) so as to revolve along the circumference of the rotary ring, and a brake ring (60) is mounted on the rotary ring (30) and provided with a plurality of radial vanes (68) to which air applies resistance against the turning of the brake ring. The brake ring (60) is provided with an air pressure evading wall (64) for avoiding the influence of a pressure generated by whirling air currents produced by the rotating cop, on the brake ring (60) to prevent retardation of the variation of the rotational speed of the rotary ring according to the variation of the effective circumferential speed of the cop built on the bobbin during a cop building operation so that a balloon formed by the yarn will not expand and will not collapse.

Spinning ring structure with an aerodynamic brake member

A spinning ring structure for use on a spinning frame comprises a stationary ring fixedly held in place, a rotary ring fitted in the stationary ring coaxially with the stationary ring so as to rotate about its center axis and provided with an annular flange at its upper end, a traveler put on the flange of the rotary ring for traveling along the flange to guide a yarn to a bobbin disposed coaxially with the rotary ring. Openings are formed through a neck portion of the rotary ring, whereby flies produced during the spinning operation by friction between the yarn and the traveler are discharged outside the spinning ring structure through the openings due to centrifugal force.

Growing community of inventors

Aichi-ken, Japan

Yasushi Iwama