| 摘要 |
A heat seal device of a filling and packaging machine, wherein a continuously fed film (F) is sealed vertically by a vertical seal mechanism (19) so as to form the film (F) in a cylindrical shape and sealed laterally by lateral seal mechanisms (20, 21) so as to form a bottom part which forms packaging bags, contents W, W1, and W2 are filled in the film formed in the bottomed cylindrical shape and, while the film (F) is fed, a portion of the film (F) which forms bag opening part sides is sealed laterally by the lateral seal mechanisms (20, 21) for continuous packaging as small bags (P); the vertical seal mechanism (19) comprising a pair of rotating shafts (25) incorporating a heater (H) and installed rotatably and two pairs of vertical seal rolls (31, 34) which are installed in pairs on the rotating shaft (25) apart axially a specified distance from each other and have seal parts (30, 35) projected in flange shape around the peripheral part, respectively, the heater (H) incorporated in the rotating shaft (25) being installed movably along the axial direction of the rotating shaft (25) with the position of the heater (H) capable of being adjusted movably relative to the position of the two pairs of vertical seal rolls (31, 34) so that the surface temperatures of the seal parts (30, 35) of the two pairs of vertical seal rolls (31, 34) are generally equal to each other. |
