FIELD: manufacture of containers from thermoplastic film. SUBSTANCE: device comprises die with cavity and air outlet pipe union, chamber installed on said die and having punch and air inlet pipe union with valve. Linear dimensions of punch lower base and of die cavity upper base are linked by the following relation: l = 0.5-0.3 L; b = (0.5-0.3)B where l = length of punch lower base; L - length of die cavity upper base; b - width of punch lower base; B - width of die cavity upper base. EFFECT: improved design. 4 dwg
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