| 摘要 |
<p>PURPOSE:To prevent a screw from being left to be unfastened due to a working error by an worker, in a supply device for automatically extracting screws or the like one by one onto a take-up position, by counting and displaying a cycle number of extraction of screws by the worker, and by displaying the cycle number. CONSTITUTION:A screw supply device 1 is composed of a detection switch for detecting the extraction of screws 2 one by one from a take-out device 4, a preset switch 15 for presetting a number of screws in one set, a counter, a set-repeat display section (display means) 17 for indicating a cycle number of extraction of the screws 2 and an alarm (alarming means) 18. Accordingly, the supply devices counts a cycle number of extraction of screws 2 which are successively taken out from the take-out device 4 by the worker with the use of a magnet driver or the like, and the display means 17 displays thereon an order number of a taken-out screw in one set having been preset. When the number of the one set has been counted, the alarm 18 is energized. Further, when the worker depresses a compensating switch 20, the number of the alarm 18 is compensated.</p> |
