| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively correct variations of a feed amount due to a joint of a belt. <P>SOLUTION: This belt type feeding device 100 is provided with a mark 55 composed of a hole, etc. on the feed side of a joint 54 of a belt 53. The belt 53 is provided with a first rotary encoder 1 and a second rotary encoder 2, and an optical sensor 13 is provided in the vicinity of the back feed side of the first rotary encoder 1. When the belt 53 moves and the optical sensor 13 detects the mark 55, a valid encoder which detects a feed of the belt 53 actually is switched from the first rotary encoder 1 to the second rotary encoder 2. When the joint 54 passes the first rotary encoder 1 and the belt 53 moves by a given feed amount, the valid encoder is switched from the second rotary encoder 2 to the first rotary encoder 1. Thus, the feed at the joint 54 is not detected by the encoder. <P>COPYRIGHT: (C)2013,JPO&INPIT |
