| 摘要 |
PURPOSE: To mechanically and automatically perform a bottom-attaching work under a condition wherein air is purged, and at the same time, an accident to crush a content is not generated. CONSTITUTION: A vertically movable attaching member 87 is arranged on the top of a front half of a belt conveyor 4, and a receiving plate 89 for bottom- attaching which moves in the longitudinal direction is provided on the attaching member 87. At the same time, on both right and left sides of a rear half of the belt conveyor 4, folding in members 90, 91 for right and left side bottom surfaces, which fold down right and left side bottom surface covering areas and place on the upper surface of the receiving plate 89 for bottom-attaching, are arranged. Also, a heater for bottom-attaching which heat-welds the right and left side bottom surface covering areas in the overlapped condition to each other is provided in such a manner that the heater for bottom-attaching may be reciprocate-driven in the approaching/ separating direction from the receiving plate 89 for bottom-attaching. Also, a vertically movable film-holding member 95 is arranged on the top of the rear half of the belt conveyor 4. |
