Kabushiki Kaisha Toshiba

Katunori Nomura

Yoshiyuki Yamauchi

Hiroaki Anse

Tadayuki Kanatani

Hirotaka Uchida

Thin strip cores wound by apparatus having a spool for winding a ribbon-like thin strip, a clamping device for clamping and moving the ribbon-like thin strip, a winding core driving device for causing the ribbon-like thin strip clamped by the clamping device to be wound in a prescribed length around a winding core, a cutting device for cutting the ribbon-like thin strip after the ribbon-like thin strip has been wound in the prescribed length around the winding core, a welding device for welding the trailing end of the wound thin strip cut off, a releasing device for releasing the connected wound thin strip, and a measuring device for taking the weight of wound thin strip released. This invention can produce the thin strip core quickly because all of the works involved in the production of the thin strip core are automatically carried out without requiring any manual operation. Further, it imparts a fixed weight to all of the wound thin strip of product owing to the procedure which comprises weighing each wound thin strip immediately after the wound thin strip is cut off and setting the number of plies of winding for the next wound thin strip in due consideration of the cycle of thickness of thin strip so that the next wound thin strip will assume the prescribed weight.

Thin strip core for magnetic amplifiers

The apparatus for the production of a thin strip core comprises a spool for winding a ribbon-like thin strip, a clamping device for clamping and moving the ribbon-like thin strip, a winding core driving device for causing the ribbon-like thin strip clamped by the clamping device to be wound in a prescribed length around a winding core, a cutting device for cutting the ribbon-like thin strip after the ribbon-like thin strip has been wound in the prescribed length around the winding core, a welding device for welding the trailing end of the wound thin strip cut off, a releasing device for releasing the connected wound thin strip, and a measuring device for taking the weight of wound thin strip released. This invention can produce the thin strip core quickly because all of the works involved in the production of the thin strip core are automatically carried out without requiring any manual operation. Further, it imparts a fixed weight to all of the wound thin strip of product owing to the procedure which comprises weighing each wound thin strip immediately after the wound thin strip is cut off and setting the number of plies of winding for the next wound thin strip in due consideration of the cycle of thickness of thin strip so that the next wound thin strip will assume the prescribed weight.

Apparatus for production of thin strip core, method for the production

The multistage tandem wire drawing apparatus according to the present invention has a heating mechanism and wire drawing units (draw benches) arranged in tandem to correspond to the respective manufacturing stages of the work, and is characterized in that a tension of the work moving between the wire drawing units is measured. The measured tension and a predetermined reference tension are compared to calculate any deviation therebetween, and, by using a movable chuck speed of a predetermined wire drawing unit as a reference, movable chuck speeds of the other wire drawing units are controlled in accordance with the calculated tension deviation. According to the present invention, the wire drawing speeds of the wire drawing units are controlled in accordance with the tension of the work between the wire drawing units so that excessive tension does not act on the work, thereby preventing damage to the work while keeping the work taut.

Growing community of inventors

Yokohama, Japan

Katunori Nomura