| 摘要 |
A pouch is fed sandwiched between a pair of endless belts 1a, 1b. A pair of heat sealers 8a 8b are arranged inside of the inner belt portions of the endless belts, and are adapted to reciprocate at the same speed as the belts. The heat sealers are kept (cammed) away from each other while they are moving in the opposite direction as the belt portions. They are pressed (by springs 16) toward each other while they are moving in the same direction to the belt portions to seal the mouth of the pouch. <IMAGE> |
