| 摘要 |
According to a method for forming a blister band (1) for blister pack (10) in blistering machines (M), a band (1) of heat-formable material is moved stepwise through a preheating station (5), a forming station (6), where a regular series of blisters (20) is formed, a filling station (8), where the blisters (20) are filled with relative articles, a sealing station (9), in which the blister band is sealed with a covering band (11), and a cutting off station (13), where the blister band is cut into single blister packs (10). The method includes gradual heating, during the stepwise movement of the band (1) in the preheating station (5), of selected areas (24a, 24b, 24c) of the band (1). The areas (24a, 24b, 24c) are distributed regularly within a cold grid-like zone and have an extent suitably bigger than the extent of the blisters (2) made in the region of the heated areas (24a, 24b, 24c). |
