Murata Kikai Kabushiki Kaisha

Other

Koichiro Oshiumi

Takashi Nakao

Kikuo Hori

Akihiko Ishiura

Akihiko Ishura

Kazuki Ishii

H Y Peter Pai

An ID tag describing control data on a stopped position for each stationmovement required for a transfer, and the like is installed in front of the stationAn overhead vehiclereads the control data and uses it for stoppage and transfer. The overhead vehicleneed not store the stoppage or transfer control data for each stationFurther, the control data can be changed without updating the storage in the overhead vehicle

Carriage system

A dogis placed in front of each stop positionto notice an overhead running vehiclethat ID tag data is to be read. A bar code readerreads the ID tag data to determine the stop position based on a mark reference. The absolute position of an overhead running vehiclewith respect to the markis determined. The overhead running vehicledecelerates and stops at a target position. According to the present invention, the overhead running vehiclecan stop without creep running.

The object of the present invention is to allow the reliable identification of the quality level of the winding package based on the yarn quality such as the yarn winding tension or the twisting density when manufacturing a winding package. According to the draw texturing machine for winding while traversing the false-twist textured yarn Y unwound from the supply yarn package and forming a winding package of taper end form, a tension sensor for detecting the tension of the yarn Y to be processed into a winding package and a quality level judging means for judging the quality level of the winding package based on the detected tension information, are provided. Moreover, a winding controller is provided with a winding terminating position setting means for coordinating the quality level judging means and the traverse device T so that the straight winding position (b )&tilde;(b ) at the finishing of the winding process of the winding package is to be determined in the differing axis direction based on the judged result of the quality level judging means

Yarn texturing device, yarn texturing method and winding package employing quality indicating function

A melt spinning apparatus that prevents filaments passing through an unstable area from contacting one another. In a melt spinning method for thinning and solidifying each molten filament F ejected from a plurality of nozzles to obtain a yarn Y comprising a plurality of filaments F, each filament F being thinned is charged to the same polarity, and when the plurality of filaments F are assembled together, charge is eliminated from them. In a melt spinning apparatus,having an unstable area A generated necessarily during the rapid thinning of each filament F between a spinning pack,of an ejecting device,located above and a filament converging portion B located below, a charging device,is provided that charges each filament F to the same polarity between the spinning pack,and an inlet Aa of the unstable area A; also, a static eliminating device,is provided that eliminates charge from each filament F between an outlet Ab of the unstable area A and the filament converging portion B.

Melt spinning method and its apparatus

A winding control device for a take-up winder that can reliably and precisely eliminate the slips of a contact roller rotated in contact with a bobbin holder used in a spindle-driven winding machine for synthetic yarn is described. The winding control device includes an induction motor IM3 which supplements the driving of the contact roller CR which rotates in contact with a package P. A counter force detector 7, 8 or 13 which detects the counter force created by the rotation of the contact roller against the bobbin holder, and a control part eliminates slips by adjusting the relative rotation speeds of the bobbin holder BH1 and the contact roller CR based on the output of the counter force detecting means 7, 8 or 13.

Winding control device for a take-up winder

The image forming apparatus does not have a separate cleaning unit. The image forming apparatus includes a photosensitive drum, an exposing unit for forming an electrostatic latent image on the photosensitive drum, a transfer unit for transferring toner onto a recording sheet to perform a transfer process, a paper feed mechanism for transferring the recording sheet through the transfer unit, a charging unit for charging the photosensitive drum to a predetermined voltage, a memory removing member for scattering toner remaining on the photosensitive drum upon a completion of the transfer process, a developing unit for feeding the toner over the electrostatic latent image and for recovering the toner from the photosensitive drum, and a controller for producing upon the completion of the image forming process a voltage difference between the photosensitive drum and the memory removing member so as to generate an electrostatic attracting force which causes the toner remaining on the memory removing member to be collected on the photosensitive drum. The collected toner is recovered by the developing unit later.

Cleanerless image forming apparatus

After a transferring process, a first predetermined voltage is applied to a transfer unit to charge a photosensitive drum surface to a first predetermined constant voltage. At the same time, a memory removing member is grounded. Therefore, a voltage difference is produced between the transfer unit and the memory removing member. This voltage difference causes the toner remaining on the memory removing member to be transferred to the photosensitive drum. In other words, the toner remaining on the memory removing member is redeveloped on the photosensitive drum whereby the cleaning of the memory removing member is conducted. Here, the memory removing member is a device for removing the toner from the photosensitive drum.

Cleanerless image forming method

A cleanerless image forming method for scattering toner remained on an image carrier after transfer by a memory removing member and recovering the same at a developing section, when a power switch is turned on or when jam occurs, includes steps of applying a predetermined voltage to a transfer unit to charge the surface of an image carrier to a predetermined potential and making a potential of a memory removing member lower than a charged potential of the surface of the image carrier whereby toner remained on the memory removing member is redeveloped on the image carrier.

Growing community of inventors

Kyoto, Japan

Koichiro Oshiumi