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eb545
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樓主  發(fā)表于: 2011-12-28 14:58
一道題：

將兩種零件組合成器件，兩種零件都必須從位置Ⅰ推入出料斜槽1。若放在傳送帶上的第一個(gè)零件為零件乙（試件為塑料件），則在零件到達位置Ⅱ時(shí)皮帶輸送機停止，2s后三相交流異步電動(dòng)機以35Hz的頻率反轉拖動(dòng)皮帶輸送機將零件乙返回位置Ⅰ，傳送帶在合適位置停止，然后按氣缸A活塞桿伸出→將零件推入出料斜槽1→活塞桿縮回→皮帶輸送機運行（頻率為20Hz）的順序動(dòng)作；位置Ⅰ上傳感器是電感接近開(kāi)關(guān)，位置Ⅱ上傳感器是光纖。


位置Ⅰ上傳感器是電感接近開(kāi)關(guān)對塑料件有信號輸出嗎？怎樣才有這個(gè)信號使塑料停在位置Ⅰ？
yjhdlp
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1樓  發(fā)表于: 2011-12-28 20:06
紅外線(xiàn)傳感器

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