Patent ID: 6513308
Filing Date: 2003-02-04
Classification: B31B,B65B

Abstract:
A device (10) for manufacturing tubular bag packages (1) that have an essentially rectangular cross sectional area with reinforcing seams (3) formed in corner regions and a longitudinal seam (6) disposed in a side wall (4), said device comprising: a forming shoulder (20) for forming a packaging material tube (9) from a flat sheet (18), a longitudinal seam sealing device (26) for producing the longitudinal seam (6), longitudinal edge sealing devices (25) for producing the reinforcing seams (3), a forming and filing tube (21), a tube advancing device (27), a lateral seam sealing device (30) for producing lateral seams (2), a cutting device for cutting the individual tubular bag packages (1) from the packaging material tube (9), and a forming device (35) for producing fin-shaped tube corner regions (67), which constitute the reinforcing seams (3), the forming device (35) has folding elements (61, 62) which act on the packaging material tube (9) exclusively from an outside and in so doing, press the packaging material tube (9) against each other in the vicinity of the tube corner regions (67), wherein the folding elements (61, 62) are preceded by at least one forming plate (37) secured to and surrounds the exterior of the forming and filing tube (21), which plate has an essentially rectangular shape with curved corners (53), of which an edge length (B) corresponds to the width (B) of the finished tubular bag packages (1) together with the reinforcing seams (3), and wherein the other edge length thereof (T+2L) corresponds to the depth (T) of the tubular bag packages (1) plus the length (L) of the two reinforcing seams (3).