FIELD: technological processes.
SUBSTANCE: method involves welding the tube element of spout, containing thermoplastic resin, to sack, containing relatively soft flexible film. Preliminary heating of the tube element of the spout is carried out, while rotating it about the axis of its cylinder. The heated element of the spout is then fitted into the open part of the sack, squeezed and the spout element is welded to the open part of the sack. The device has a means of rotating the spout element, a feeding device for the spout element, and a preliminary heating device for rotating the spout element. The device also has a welding device for fitting the heated spout element into the open part of the sack and its compression, and a coolant for the sack, welded to the spout element. There is also an extraction device for extraction of a cooled sack with a spout element.
EFFECT: invention provides for uniform temperature of surface of spout element during preliminary heating and attainment of high quality of sacks with spout.
12 cl, 12 dwg, 2 ex
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