| 摘要 |
<P>PROBLEM TO BE SOLVED: To accelerate a packaging speed by keeping a blade edge position constant to a sealing surface at sealing body engagement. <P>SOLUTION: A pair of slide shafts 18 and 18 are provided at a first sealing body 10 above a conveyance route of a cylindrical film. The slide shafts 18 and 18 are supported to be freely slidable in the vertical direction in a first supporting member 14. When a pair of sealing bodies 10 and 12 are engaged with each other, sealing pressure is given by a pressing force of compression coil springs 22 wound around the respective slide shafts 18. A supporting member 20 connected between the slide shafts 18 and 18 extending to the upper side of the first supporting member 14 is moved integrally with the first sealing body 10. A cutter 26 provided at the first sealing body 10 is operated in a manner that the blade edge comes out from a sealing surface 10a when an air cylinder 28 provided in the supporting member 20 is actuated. <P>COPYRIGHT: (C)2013,JPO&INPIT |
