| 摘要 |
PURPOSE:To securely take out a work by detecting said work taken out from a cassette in the captioned cassette type conveyor device and thereby controlling elevation of the cassette and drive of a conveyance belt, while finely adjusting the cassette when no work is taken out. CONSTITUTION:A lower stage part of a cassette 1 is lowered to be located on a conveyor belt 12 by making use of an elevation motor 4. A lower stage work is taken out with use of a conveying motor 11, and conveyed. Thereupon, a detector 13 for detecting the work going in and out monitors the conveyance of the work, and with the work being conveyed without fail, the motor 11 is stopped, while unless conveyed the elevation motor 4 is driven, whereby the cassette 1 is vertically moved slightly, e.g., by about 1.5mm for checking the conveyance. Without conveyance, an alarm is produced. These operations are executed in conformity with a prescribed program with the aid of a controller 14. With such arrangement, any work can securely be taken out from the cassette. |
