| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a component length detection mechanism for detecting the length of components while reducing costs and a component supply device. <P>SOLUTION: One aspect of the present invention relates to a component length detection mechanism 10 including an optical sensor 28 configured of one set of light emission means 34 and light reception means 36; and a supply table 22, a table stand 24 and an actuator 26 for moving a screw 32, which is characterized in that the irradiation direction of the light to be emitted by the light emission means 34 and the direction of movement of the screw 32 cross at an acute angle, and that the length of the screw 32 is detected based on the number of times the screw 32 is detected by the optical sensor 28 at least at two positions of an upstream side inspection position 44 on a path through which the screw 32 moves and a downstream side inspection position 46 farther from the light emission means 34 than the upstream side inspection position 44. <P>COPYRIGHT: (C)2012,JPO&INPIT |
