Murata Kikai Kabushiki Kaisha

Kondo Cotton Spinning Co., Ltd.

Yutaka Ueda

Isamu Matsui

Shoichi Tone

Masaharu Kiriake

Shuzo Kawamura

Toshio Yamauchi

Keizo Ohori

Isamu Ikeda

Tsukasa Kawarabashi

Tadashi Suzuki

Tetsuji Masai

Hideshi Mori

Yoshiyuki Ichiba

Yoshihiko Samoto

Tsuneo Shimizu

Kaichiro Yoshida

Shoji Mizutani

Tosio Yamauchi

Manzo Tanaka

Kazuhiko Nakada

A quality control system in a material processing mill. The mill may include several different processing machines for performing several different processing steps to produce several different intermediate products. Each processing machine is provided with a sub-processor for monitoring production information associated with the processing machine and quality information associated with the intermediate product produced by the processing machine. The quality and production information from the various sub-processors are directed to a main processor, which records a history of the processing of the various intermediate products.

Quality control system in a spinning mill

In a spinning mill in which a bobbin from a spinning frame is mounted on a bobbin tray and sent to a winder, a package doffed from the winder is loaded on a hanger and then the package is mounted on a package tray, recording media is provided on the bobbin tray, on the hanger and the package tray, respectively. Frame numbers and spindle numbers which are production origin information of bobbins are written on the recording medium so that the production origin information can be controlled and the records can be grasped.

Production control system in spinning mill

A twist number setting device for a two-for-one twister constituted such that an output power shaft of a drive motor is connected to a drive pulley which is connected to a spindle and provides a turning force to the spindle and also connected to a rotary shaft of a drum which contacts with a winding package and provides a turning force to the package, and a speed change mechanism is interposed between the output power shaft of the drive motor and the rotary shaft of the drum.

Twist number setting device for a two-for-one twister

In an automatic winder wherein each of a plurality of winding units thereof has a traverse drum driving motor and an inverter for driving the motor, the numbers of those inverters which are to be decelerated and accelerated are controlled in such a manner that the regenerative energy generated upon deceleration of the motors and the motor driving energy may be cancel each other.

Driving controlling method for drums of automatic winder

A quality control system in a spinning mill, wherein communication networks for yarn processing steps of information regarding the status of products are provided and malfunction detection apparatus for detecting a malfunction of the steps is provided on at least one of the processing steps so that the cause of occurrence of a malfunction may be grasped to pursue the cause tracing back to the previous processing steps through the networks.

A draft mechanism for use on a spinning machine includes a series of roller pairs each including a bottom roller and a top roller. The roller pairs are connected to output shafts of motors through the use of timing belts. The motors are electrically controlled according to the draft ratios. Roller gauge adjusting shafts are meshed with bearing portions of the top and bottom rollers. '

Draft mechanism having roller pairs connected to draft ratio controlled

A twist number setting device for a two-for-one twister constituted such that an output power shaft of a drive motor is connected to a drive pulley which is connected to a spindle and provides a turning force to the spindle and also connected to a rotary shaft of a drum which contacts with a winding package and provides a turning force to the package, and a speed change means is interposed between the output power shaft of the drive motor and the rotary shaft of the drum.

In an automatic winder, feed of bobbins of the succeeding yarn lot is started at time when the quantity of yarn remaining bobbins of the preceding yarn lot supplied to the winding units is diminished below the quantity of yarn which can be wound by all winding units, to rewind the bobbins of the preceding yarn lot and those of the succeeding yarn lot simultaneously.

Method of operating an automatic winder in changing yarn lot

In an automatic winder, the tension device provided on each winding unit has a tenser in contact with a yarn to apply a resistance thereto, and a driving actuator of said tenser member, and each of the actuators provided on each winding unit is associated with a control device positioned separately from each winding unit, and adjustment of the tenser member is remote-controlled. The control device is used to vary the yarn tension in accordance with amount of yarn layer on a package, winding speed of a yarn and the like.

Tension setting and controlling method and apparatus in an automatic

A cop selecting and conveying apparatus for an automatic winder in which winding units are divided into a plurality of winding sections and different kinds of cops carried on carrying mediums are transferred on the conveying passage to each of the winding sections. A indicia is formed in either the carrying medium or the guide member at the side of the conveying passage and a device for discriminating or detecting the discrimination indicia is disposed at a position to corresponding to the indicia.

Article selecting and conveying system

A doffed package transporting system in which a memory member on which a mark of a type of a package supported on a package supporting member provided on a package transporting line can be erasably written is securely mounted on the supporting member, and a writing device for writing a mark of a type of a package on said memory member is located at a position at which a package is transferred onto the package supporting member while a reading device for reading the thus written mark of a type of a package is located at a position at which a package is unloaded from the supporting member.

Doffed package transporting system

An automatic winder and a two-for-one twisting machine are interconnected by a yarn supply package exchanging device for a set of two packages arranged in two upper and lower stages which is located between the automatic winder and the two-for-one twisting machine. Doffed packages at the winder side are put on a yarn support fitted on a tray by the yarn supply package exchanging device and are transported and supplied to a spindle of the two-for-one twisting machine.

Interconnecting system for a winder and a two-for-one twisting machine

A spinning frame control system in which a spinning frame is connected with a winder by means of a bobbin conveyance path and an empty bobbin return path. Identification marks in the form of concentric circles are fixed onto conveyance mediums for conveying spinning bobbins each independently, and readers for the identification mark are disposed in the bobbin feed position from the spinning frame to the conveyance mediums and also in the return path of bobbins discharged from the winder.

Spinning frame control system

In an automatic winder having a plurality of winding units, a tension sensor for detecting the tension of yarn is provided in a yarn travelling path extending between a yarn feed side bobbin and a take-up side package. A take-up controller for controlling the yarn take-up rate in accordance with a signal provided from the tension sensor may be provided to the winding unit.

Automatic winder

A method of detecting a defect of a running yarn comprises steps of producing an electric signal in accordance with a winding speed of a yarn, correcting a reference value corresponding to a length of a defect of a yarn in accordance with the electric signal, and comparing the thus corrected reference value with a detection signal produced from a yarn defect detecting head thereby to detect a defect of the yarn included in the yarn during feeding.

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Nara, Japan

Yutaka Ueda