| 摘要 |
<p>PURPOSE:To automate operation regardless of the kind of a frame and to prevent miscoating, etc., by irradiating a frame material with light and detecting its reflected light by two detection sensors provided on each of straight lines parallel to an X axis and a Y axis. CONSTITUTION:Two detection sensors 51 and 52, and 53 and 54 each are provided to a frame material detection part 5 on the straight line parallel to the X axis and the straight line parallel to the Y axis bisecting said straight line at a prescribed distance so as to irradiate the frame 4 with the light and detect its reflected light. Then a judging means judges that a detection part 5 faces the frame material parallel to the X axis of the frame body of the frame 4 when both the sensors 51 and 52 detect the frame body of the frame 4 when both the sensors 51 and 52 detect the frame 4 and also judges that the detection part 5 faces the frame material parallel to the Y axis when both the sensors 53 and 54 detect the frame 4. Further, it is judged that the detection part 5 faces a corner part when both one of the sensors 51 and 52 and one of the sensors 53 and 54 detect the frame 4.</p> |
