| 摘要 |
PURPOSE:To make measuring error smaller and also make it possible to continuously inspect all pieces of cut wire by such an arrangement wherein a synchronizing sensor which detects the instant at which wire material is cut, a wire length detecting sensor which detects the position of the front end of a wire material in a transport system and a controller which arithmetically processes signals from all sensors are provided. CONSTITUTION:Measurement is made by such a method that when a synchronizing signal to be generated by a synchronous sensor 17 at the instant of cutting while a cutting machine is in operation is given, the condition of light incoming or light shielding of light receiving elements 21a-21j being inputted into a controller is memorized in a memory inside the controller, and after that, the conditions of adjoining light receiving elements are compared. If the front end of a wire material at the time of cutting is located to the right of a reference point P, a deviation from a target value moves in the direction of plus. An average value of the results of measurements of plural times is displayed. In case an error is larger than an upper limit value and lower limit value determined in advance, the wire is judged to be a poor product, and its erroneous dimension is displayed on a poor dimension display unit and kept displayed until the condition is released by a reset push-button. Such a judgement is made for every cutting operation and all pieces of product are inspected. |
