| 摘要 |
In a heat seal device of a filling and packaging machine, wherein a continuously fed film F is vertically sealed 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 portion which forms packaging bags, contents W, W1, 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 a bag opening part side is sealed laterally by the lateral seal mechanisms 20,21 for continuously packaging as pouches P, the vertical seal mechanism 19 comprises a pair of rotating shafts 25 incorporating heaters H and mounted rotatably and two pairs of vertical seal rolls 31, 34 which are mounted in pairs on the rotating shafts 25 with a given distance in the axial direction of the rotating shafts 25 and have seal portions 30,35 protruded in a flange shape around outer peripheral portions thereof respectively, the heaters H incorporated in the rotating shafts 25 are disposed movably along the axial direction of the rotating shafts 25 with the position of the heaters H capable of being adjusted movably relative to the position of two pairs of the vertical seal rolls 31, 34 so that the surface temperatures of the seal portions 30, 35 of two pairs of the vertical seal rolls 31, 34 are made generally equal to each other. <IMAGE> |
