Patent Number: 6,167,677

Title: Tubular bagging machine

Abstract: In a tubular bagging machine with two cross-sealing jaws 1, 2, which are movable toward one another and thereby cross-weld a foil tube, product that moves between the cross-sealing jaws 1, 2, interferes with the cross seam, and results in a leaky cross-seam of a tubular bag. In order to reliably recognize entrapped product 10, it is suggested to measure the performance resistance of the servomotor on the cross-sealing jaws 1, 2, which are moved by a servomotor drive 4, in order to determine product entrapment. The machine controller 8 can additionally receive from the drive 4 a value for the jaw position, which position value corresponds to a desired momentary jaw pressure. A product entrapment is determined from a high or measured performance resistance value from the desired value. A reliable product entrapment recognition is achieved through the use of the light-metal cross-sealing jaw.

Inventors: Kammler; Roman (Worms, DE), Baur; Walter (Gruendau, DE)

Assignee: Rovema Verpackungsmaschinen GmbH

International Classification: B65B 51/30 (20060101); B65B 51/26 (20060101); B65B 009/20 (); B65B 051/30 (); B65B 057/10 ()

Expiration Date: 01/02/2018