| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bag making apparatus with a simple configuration that: prevents fluctuations in tension, shift in seal positions, and meandering or skewing of the film material; allows the setting of precise initial conditions; reduces or makes unnecessary monitoring during continuous movement, and time and structures for adjustment; allows increased film material feed rate; and improves the efficiency of production. <P>SOLUTION: This bag making apparatus for packaging containers that seals prescribed areas of a film material F includes: a tension-controlling means for controlling the continuous feed rate according to the values detected by a tension sensor 164 of a tension-detecting roll 163; an optical detection means for simultaneously recognizing multiple marks provided on the surface of the film material F at the respective positions thereof; a skewing correction means; and a seal position-correcting means for adjusting the positions of multiple sealing means 171 in the feed direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
