Method for manipulating and positioning flexible bags with a view to sealing their filling and/or draining opening, means for implementing this method and installation implementing this method

摘要

The invention relates to a method for manipulating and positioning bags (2) which are essentially rectangular parallelepipeds and which have flexible walls (3), with a view to sealing those of the walls and/or their extensions which delimit the filling and/or draining opening of the said bags (2), which bags (2) are, for example, so-called valve bags and each include, in the plane of one of their faces (7), at least one flat protuberance which constitutes an entry collar (packing) for the abovementioned valve which is inside the bag, the manipulation method being implemented in an installation for sealing the collar of each bag conveyed towards the installation in a position of bearing via one of their two most extended faces against a substantially horizontal support and with their face (7) extended by the collar located in a plane substantially perpendicular to the conveying direction (D1). IMAGE