Unwinding a film roll in a packaging machine
AssigneeGEA Food Solutions Germany GmbH
InventorsJochen Rehn, Frank Sabato
Life of this patent
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Abstract
A packaging machine which unwinds a bottom film web from a supply roll and conveys it intermittently or continuously along the packaging machine and in a forming station, forms into the bottom film web packaging cavities, which are then filled with a product to be packaged. In a sealing station, a top film web is sealed to the bottom film web, wherein the bottom and top film web are respectively unwound from a supply roll and the bottom and top film web are respectively tensioned by means of a dancer roll. The supply roll is driven by means of a motor, the parameters of which, in particular rotation speed and/or torque, can be set on the basis of the parameters of the respective supply roll.
Claims21
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.
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, 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, wherein the packaging machine comprises a sealing station and subsequently, in the sealing station, a top film web is sealed to the bottom film web, wherein the top film web is unwound from a second supply roll, and the first supply roll and/or the second supply roll is rotatably mounted on a shaft, wherein, as a result of the rotation, the bottom film web and/or the top film web is unwound in a running direction, wherein the shaft is displaceable along a longitudinal center axis of the shaft, wherein the first supply roll is unwound, 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 when the parameters of the motor are adjusted.
A method for producing a packaging with 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, 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, wherein subsequently, in a sealing station, a top film web is sealed to the bottom film web, wherein the top film web is unwound from a second supply roll and the bottom film web and top film web are respectively tensioned by means of a dancer roll, wherein the first supply roll is unwound, 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 when the parameters of the motor are adjusted.
A method, in which a bottom film web unwinds from a first supply roll and is conveyed intermittently or continuously along a packaging machine and in a forming station is formed into packaging cavities, which are then filled with a product to be packaged, wherein subsequently, in a sealing station a top film web is sealed to the bottom film web, wherein the top film web is unwound from a second supply roll, and the first supply roll and/or the second supply roll are rotatably mounted on a shaft, wherein, as a result of the rotation, the bottom film web and/or the top film web is unwound in a running direction wherein the shaft comprises a longitudinal center axis and the shaft is displaced along the longitudinal center axis, 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 can be set on a basis of 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.
A method, in which a bottom film web unwinds from a first supply roll and is conveyed intermittently or continuously along a packaging machine and in a forming station is formed into packaging cavities, which are then filled with a product to be packaged, wherein subsequently, in a sealing station a top film web is sealed to the bottom film web, wherein the top film web is unwound from a second supply roll, and the first supply roll and/or the second supply roll are rotatably mounted on a shaft, wherein, as a result of the rotation, the bottom film web and/or the top film web is unwound in a running direction wherein the shaft comprises a longitudinal center axis and the shaft is displaced along the longitudinal center axis, 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 can be set on a basis of parameters of film located on the first supply roll and/or the second supply roll, wherein the shaft is driven by a motor, the shaft is supported on a frame that is connected to a guide by a slide bearing and that is longitudinally displaceable along the guide in a direction transverse to a transport direction of the top film web and/or the bottom film web, the frame is longitudinally displaceable by an adjustment drive, and wherein the packaging machine comprises a coupling between the motor and the shaft to allow the shaft and the frame to be longitudinally movable along the longitudinal center axis.
Dependencies are inferred from the claim text.