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AssigneeI.M.A. Industria Macchine Automatiche S.P.A.
InventorPierluigi Tampieri
Estimating the term…
According to a method for forming a blister band (1) for blister packs (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 which said 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 respective areas (24a,24b,24c) of the band (1). The areas (24a,24b,24c) are distributed regularly within a cold grid-like zone and have extension suitably bigger than the extension of the blisters (20) made in the region of the heated areas (24a,24b,24c).
A method for forming a blister band (1) for blister packs (10) in blistering machines (M), with a band (1) of heat-formable material fed in an intermittent way with a step (P) in a forward direction (D) through a preheating station (5), a forming station (6) for forming a regular series of blisters (20) obtaining a blister band, a filling station (8) for filling said blisters (20) with articles, a sealing station (9) for sealing the blister band with a sealing band (11), and a cutting off station (13) for cutting the blister band into single blister packs (10), said method being characterized in that in said preheating station (5) respective areas (24a,24b,24c) of said heat-formable band (1) are heated gradually during a stepwise movement of said heat-formable band (1), said areas (24a,24b,24c) of said heat-formable band (1) being distributed regularly within a cold grid-like zone and having extension suitably bigger than the extension of said blisters (20) made in the region of said heated areas (24a,24b,24c).
An apparatus for forming a blister band (1) for blister packs (10) in a blistering machine (M), the machine including means for feeding a band (1) of heat-formable material in an intermittent way by a step (P) through a preheating station (5), a forming station (6) for forming a regular series of blisters (20) in the heat-formable band (1) and obtaining a blister band, a filling station (8) for filling the blisters (20) with articles, a sealing station (9) for applying a sealing band (11) to the blister band, and a cutting off station (13) for cutting the blister band into single blister packs (10), the apparatus being characterized in that said preheating station (5) includes heating means (14a,14b,14c) acting in a differentiated way to heat respective areas (24a,24b,24c) of said heat-formable band (1) gradually during a stepwise movement of said heat-formable band (1), said areas (24a,24b,24c) of the heat-formable band (1) being distributed regularly within a cold grid-like zone and having extension suitably bigger than the extension of said blisters (20) made in the region of said heated areas (24a,24b,24c).
Dependencies are inferred from the claim text.