US 11,891,202 B2
Unwinding a film roll in a packaging machine
Jochen Rehn, Biedenkopf-Wallau (DE); and Frank Sabato, Biedenkopf (DE)
Assigned to GEA Food Solutions Germany GmbH, Biedenkopf-Wallau (DE)
Appl. No. 17/055,217
Filed by GEA Food Solutions Germany GmbH, Biedenkopf-Wallau (DE)
PCT Filed May 20, 2019, PCT No. PCT/EP2019/062937
§ 371(c)(1), (2) Date Nov. 13, 2020,
PCT Pub. No. WO2019/219966, PCT Pub. Date Nov. 21, 2019.
Claims priority of application No. 10 2018 207 924.2 (DE), filed on May 18, 2018; and application No. 10 2018 218 582.4 (DE), filed on Oct. 30, 2018.
Prior Publication US 2021/0214110 A1, Jul. 15, 2021
Int. Cl. B65B 41/16 (2006.01); B65B 9/04 (2006.01); B65B 41/18 (2006.01); B65B 57/04 (2006.01); B65H 16/00 (2006.01); B65H 23/18 (2006.01)
CPC B65B 41/16 (2013.01) [B65B 9/04 (2013.01); B65B 41/18 (2013.01); B65B 57/04 (2013.01); B65H 16/005 (2013.01); B65H 23/1806 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A packaging machine which unwinds a bottom film web from a first supply roll and conveys the bottom film web intermittently or continuously along the packaging machine, wherein the packaging machine comprises:
a forming station that forms the bottom film web into packaging cavities, which are then filled with a product to be packaged,
a sealing station, wherein in the sealing station, a top film web is sealed to the bottom film web, the top film web is unwound from a second supply roll, and the bottom film web and the top film web are respectively tensioned by means of a dancer roll,
wherein the first supply roll and/or the second supply roll is driven by means of a motor, and parameters of the motor, that include rotation speed and/or torque, are adjusted based on parameters of film located on and not yet unrolled from the first supply roll and/or the second supply roll when the parameters of the motor are adjusted.