METHOD FOR PRODUCING FLEXIBLE CONTAINERS COMPRISING A DISPENSING VALVE

摘要

The invention relates to a method for producing flexible containers comprising a dispensing valve, said method including: vertically forming a tubular body (2) by means of vertically displacing and longitudinally folding a heat-sealable film (1); longitudinally welding two vertical ends (11, 12) of the heat-sealable film (1); producing, from the tubular body (2), independent flexible envelopes (3) provided with a closed bottom and an open upper mouth (33), by means of carrying out successive transverse weldings (32) and transverse cuts in said tubular body; and horizontally moving the successive flexible envelopes (3) through a series of working stations wherein the product to be packaged is dosed, a dispensing valve (4) is placed in the upper mouth (33) of the flexible containers (3), and the upper mouth (33) is welded (34), securing the dispensing valve (4).

主权项

1. Method for manufacturing flexible packages having a dispensing valve characterized in that it comprises the following steps:
a) the unwinding of a flexible thermosealable film (1); b) the vertical forming of a continuous tubular body (2) by means of the vertical displacement and the longitudinal folding of the thermosealable film (1) such that the vertical ends (11, 12) of the thermosealable film (1) are arranged opposing each other along their entire length; c) the longitudinal sealing of the two opposing vertical ends (11, 12) of the thermosealable film (1) laterally closing the tubular body (2); d) obtaining independent flexible successive envelopes from the tubular body (2), provided with a closed bottom and an open upper mouth (33), by means of carrying out successive transversal sealings (32) and transversal cuts in said tubular body; e) the horizontal displacement of the successive independent envelopes (3) by a series of work stations in which the metering (D) or filling of the product to be packaged in the interior of the successive flexible envelopes (3) is carried out, the insertion of an dispensing valve (4) in the upper mouth (33) of the flexible envelopes (3) and the sealing (34) of the upper mouth (33) of the flexible envelopes, establishing its closing and the fixing of the dispensing valve (4) to the corresponding flexible envelope (3).