Murata Kikai Kabushiki Kaisha

Yuji Todo

Isamu Matsui

Yoshiyasu Maeda

Masaharu Kiriake

Takashi Nakao

Hidetoshi Kimura

Tomonari Ikemoto

Takashi Nakagawa

Koji Takayasu

Masahiro Wakabayashi

Kenji Kawamoto

The present invention provides a hairiness suppressing device for an automatic winder that can perfectly balloon a spun yarn using a whirling current in a yarn passage. In a hairiness suppressing device (,) comprising a yarn inserting opening (,) that extends and opens in an axial direction of a yarn passage (,) in which a whirling current acts on a spun yarn, a wedge-shaped cover member (,) is provided that can open and close the yarn inserting opening (,). When a swiveling body (,) is swivellably moved to open the cover member (,), the yarn can be introduced into the yarn passage (,) through the yarn inserting opening (,). When the swiveling body (,) is swivellably moved to close the cover member (,), the whirling current in the yarn passage (,) is prevented from leaking from a side of the yarn passage (,).

Hairiness suppressing device for automatic winder

The present invention relates to a dyed-yarn winding method wherein specified length control operates to wind a specified length of a dyed-yarn y without dyeing specks to a winding package Pw, and then cuts the dyed-yarn to remove a dyed-yarn having dyeing specks and remaining an a dyed-yarn supply package Ps. Since the specified length control prevents that part of a dyed-yarn that has dyeing specks from being wound to a winding package, an operation for removing such a part from the winding package can be omitted.

Dyed-yarn winding method

The yarn end finding apparatus includes an air current generating member and an air current control member for controlling an air current generated by the air current generating member in such a manner that the air current flows along the surface of yarn layers of a bobbin. The air current control member is disposed in a position either partially or totally surrounding the bobbin in order for the air current control member to be movable upward and with respect to the bobbin. The yarn end finding apparatus of the present invention is compact in structure so as to permit a yarn finding operation to be performed in a single location.

Yarn end finding apparatus and method

An auxiliary yarn releasing apparatus which can control the releasing tension of a yarn of a thick yarn number count is proposed. The auxiliary yarn releasing apparatus is constructed such that a cover portion which covers over a substantially entire chase portion of a yarn supply bobbin is provided on a balloon controlling member which is put over a take-up tube as releasing of a yarn of a yarn supply bobbin proceeds.

Auxiliary yarn releasing apparatus

An unwinding assisting device for an automatic winder. The automatic winder has a winding position at which a cop of yarn is unwound from a take-up tube supported on a tray. A lifting mechanism raises the tray at the winding position as the cop of yarn is unwound from the take-up tube. A tubular member receives the take-up tube therein. The tubular member has an inside diameter that is smaller than the outside diameter of the cop and larger than the outside diameter of the take-up tube.

Cop changing mechanism for a winding unit

A yarn unwinding assisting device for an automatic winder comprising a first defining member having an inner diameter defining portion covered over a yarn feed bobbin to define a lower balloon, and a second defining member having a defining member located above the yarn feed bobbin to define a yarn running area and defining an upper balloon, wherein said first defining member is separated from said second defining member to enable following the unwinding of the yarn feed bobbin.

Yarn unwinding assisting device and yarn unwinding method in an

A cop changing mechanism for a winding unit, for transferring a tray supporting a cop in an upright position from a waiting position to a winding position and removing a tray supporting an empty bobbin away from the winding position is provided with a tray holder for pressing down the tray located at the winding position.

A bobbin trace system in which a bar code for distinguishing a bobbin is affixed on a tray on which the bobbin to be fed from the spindle on the fine spinning frame to the winder is inserted upright, the bar code is read by a bar code reader and at the same time the yarn characteristic of the bobbin of the code is detected, the yarn characteristic thus detected is transferred to the controller which controls the operation of the winder, and the controller reads the code of the tray to be fed to the winder and feeds the bobbin characteristic corresponding to this code back to the winder, thereby controlling the operation of the winder on the basis of the bobbin characteristic thus fed back.

Growing community of inventors

Nagaokakyo, Japan

Yuji Todo