Mitsubishi Jukogyo Kabushiki Kaisha

Kazuyoshi Yasuda

Hiroshi Kanki

Hisashi Tatsuke

Yoshihiko Hosokawa

Takeshi Miwa

Harumi Hasegawa

Tatsuya Nakano

A bobbin holder shaft is journalled in a bobbin holder shaft support that is, in turn elastically supported relative to a fixed frame. When the support weighs more than the shaft plus the full amount of yarn to be wound thereon, and the lowest order resonant speed is below the operating speed, a high operating speed can be achieved without inducing a resonant vibration even though a pronounced band or ribbon appeared on the wound yarn ball. In a preferred embodiment, the elastic support is provided by axially spaced O-rings and an oil-filled reservoir defined axially between them.

Apparatus for supporting a bobbin holder shaft in a high speed winder

The present invention provides a way of mounting a drive roll in a high speed winder, in which a drive roll bracket for holding a drive roll is pivotally supported by a pivot whose axis is an intersection line between a vertical plane equally dividing a distance between opposite remote end surfaces of a wound thread package and a horizontal plane that is tangential to a bottom surface of the drive roll or a horizontal plane in the proximity thereof, and a press contact force between said drive roll and the bobbin holder shaft or wound thread package is applied entirely by the intermediary of said pivot.

Method and means for mounting a drive roll in a high speed winder

Ways and means are described for transferring yarn in a turret type, surface drive automatic winder wherein the yarn having changed properties caused by inevitable tension variation upon transfer is wound as a waste winding, while loosening of the transfer tail is suppressed to eliminate failure from such a cause during the yarn transfer operation.

Growing community of inventors

Nagoya, Japan

Kazuyoshi Yasuda