DEVICE FOR GUIDING A FLEXIBLE FILM BACKFOLDED ON ITSELF

摘要

PCT No. PCT/FR87/00172 Sec. 371 Date Mar. 2, 1988 Sec. 102(e) Date Mar. 2, 1988 PCT Filed May 20, 1987 PCT Pub. No. WO87/07244 PCT Pub. Date Dec. 3, 1987.A device for guiding a web of flexible film that has been folded back upon itself so as to maintain the edges of the web of film precisely positioned for subsequent sealing. The device includes a smooth support plate positioned so as to be received between two folds of the web of film with pressure being applied to hold the folds against the plate by means of rollers. The rollers are mounted to maintain the folds against the support plate and to assume different orientations relative to the direction of movement of the web.