Tsudakoma Kogyo Kabushiki Kaisha

Tsudakoma Corp.

Toshio Yoshida

A warp tension control apparatus includes a tension detector for detecting the tension of a warp and an operation mode controller for generating a control signal to drive a motor so as to minimize the deviation between the detected tension and a normal target tension. A long period stop mode controller is included for controlling the tension so that a target slack tension is set to be less than the normal target tension when a loom stop signal has been issued. A selector switch is provided for selectively switching to a contact connected to an output of the long period stop mode controller before entering a long unmanned operating period of the loom, the switch being disposed in a circuit between an input terminal of the long period stop mode controller which receives a loom stop signal and a warp tension slack device. A switch is provided for stopping the output of the operation mode controller when the long period stop mode controller outputs the slack tension control signal such that the warp tension when the loom is stopped is said to be less than that at the time of normal operation only when the selector switch is selectively switched to a contact connected to the output of the long period stop mode controller.

Warp tension control apparatus with tension reduction during loom stop

In construction of a fluid jet loom equipped with a free weft exchanger and a weft feeler, a weft detection circuit connected to the weft feeler is provisionally disenabled over a predetermined number of picks after every weft exchange and allows continued weft insertion even in case of faulty weft insertion in order to keep high running efficiency of the loom as long as the extent of weaving defect is within a tolerable extent.

Growing community of inventors

Kanazawa, Japan

Toshio Yoshida