| 摘要 |
<P>PROBLEM TO BE SOLVED: To make a hold pressing seal with a pair of seal bars at a packing open rim for use in storing a packaged item relatively up to its open rim without leaving any wrinkles. <P>SOLUTION: A pair of clip claws 21 retracted out of turning regions of a pair of clamps 10 and waiting are protruded into clamp regions upon a stop of the clamps 10 supporting a packing bag 11, a pair of movable claws 23 are operated with a first air cylinder 21 and both edges of the packing bag 11 are held by a pair of clip claws 21. After this operation, a space across the pair of clip claws 21 is widened by a pneumatic pressure of a space adjuster 30 to apply a tension to the open rim toward both sides and then the open rim of the packing bag 11 is melted and bonded by seal bars between both clip claws 21. <P>COPYRIGHT: (C)2007,JPO&INPIT |
