| 摘要 |
<p>A sealing device and a packaging machine using the sealing device, in which a seal mechanism with a rotation cam (57) having a high-torque region (B) is adopted as a seal mechanism for packaging paper (F). This enables seal sections of the packaging paper (F) to be sealed at high pressure and the same timing by using, for example, an inexpensive three-phase AC motor and not using a packaging machine formed by assembling a servomotor, harmonic reducer, controller, etc. As a result, although the packaging machine (10) is of low cost, it produces packaged bodies (12) where unsealed portions occur less frequently even if the packaging machine (10) is operated at high speed.</p> |
