WindmÖller & HÖlscher Kg

Windmoeller & Hoelscher Kg

Windmöller & Heilscher Kg

Markus Bussmann

Martin Backmann

Torsten Schmitz

Karsten Golubski

Tobias Kulgemeyer

Ansgar Avermeyer

Bernd Liesbrock

Hermann-Josef Jäckering

Jens Goldenstein

Jens Minnerup

Lennart Ederleh

Melanie Schuh

Frank Hoffmann

Juergen Linkies

Gerhard Middelberg

Tim Kirchhoff

Ingo Rübbelke

Henning Steuter

Ingo Ruebbelke

Simon Haselmann

Jürgen Linkies

Henning Voss

Ingo Hehmann

Manuel Sollert

Wolfgang Hoffmann

The invention relates to a method for a model-based optimization of a film product during a production on a film extrusion line () by means of a production model (PM) of the film extrusion line (), comprising the following steps:

Method for a model-based optimization of a film product during a production on a film extrusion line

A method for a model-based determination of model parameters (MP) of a production model (PM) of a film extrusion line, comprising:

Method for determining model parameters of a production model of a film extrusion line

The invention relates to an apparatus for producing tubular films stretched in-line by blow molding with an extruder, a film blowing line, a lay-flat unit, an oscillating haul-off unit, and a stretching line for monoaxially stretching the film laid flat in machine direction. According to the invention, the stretching line is arranged above the extruder between the lay-flat unit and the oscillating haul-off unit.

Apparatus for producing films stretched in-line

The invention relates to a monitoring method for monitoring a film bubble (FB) in a discharge region () downstream of a discharge nozzle () of a blown film device (), comprising the following steps:

Monitoring method for monitoring a film bubble in a discharge region downstream of a discharge nozzle of a blown film device

The invention relates to a method () for controlling film production, in which at least one film is produced according to at least one formula information (R), the following steps being carried out: initiation of execution () of a film production process such that a film is produced on the basis of a specific formulation information (R); determination of monitoring information (I) during the execution () of the process; determination of at least one fingerprint (F) on the basis of the specific formula information (R) and on the basis of the monitoring information (I) such that the execution () of the process is characterised on the basis of the fingerprint (F); and comparison of the fingerprint (F) with a control matrix (M) such that at least one comparative result is determined in order to control the film production on the basis of the control matrix (M) as an evaluation basis.

Method for controlling film production

The present invention relates to a method for changing material in an extrusion device comprising at least two supply devices for supplying feedstock for an extruder, comprising the following steps:

Method for changing the material in an extrusion device

The invention relates to a method () for controlling a film production in which at least one film is produced depending on at least one specific recipe information (R), where the following steps are performed:

A device and a method for extending a film web along a longitudinal direction thereof include guiding the film web in a travel direction over several rollers, and extending the film web in at least one straining gap which is limited by at least two rollers operated with different circumferential speeds. The web is provided with a temperature gradient, which extends in the direction perpendicular relative to the longitudinal axis of the film web.

Straining device and method for extending a film web

An extrusion device that produces plastic film includes at least two feed units that feed feedstock for an extruder, wherein, in each feed unit an automatic cleaning device is arranged for a removal of feedstock from the feed unit when changing material in the extrusion device.

Extrusion device and extrusion method that produces a plastic film

An extrusion device that produces plastic film includes at least two feed units that feed feedstock to an extruder, wherein each feed unit has at least one discharge opening including a discharge closure to open and close the discharge opening, and a container interface that reversibly fastens a discharge container that accommodates feedstock discharged from the respective feed unit.

Calibration basket having exchangeable air guiding elements composed of porous material. The invention relates to a guiding device and to methods for guiding a plastic film, wherein the plastic film can be guided by means of an air cushion, wherein the guiding device comprises a plurality of blower elements () each having the foil owing features: at least one supporting element (), at least one film-guiding element (), which is at least partially porous, preferably microporous, and which is connected to the supporting element (). At least one fastening element is provided, by means of which the supporting element () and the film-guiding element () can be detachably fastened to each other.

Guiding device and methods for guiding a plastic film, and blown film installation

The present invention relates to an overturning device () for overturning a molten material () in a melt channel () comprising a melt inlet () and a melt outlet (), wherein between the melt inlet () and the melt outlet () at least a melt guidance means () is assembled for a rearrangement of molten material () from the centre () of the melt inlet () at the edge () of the melt outlet () and for a rearrangement of molten material () from the edge () of the melt inlet () in the centre () of the melt outlet ().

Overturning device for overturning molten material and purging method

The present invention relates to an overturning device () for overturning a molten material () in a melt channel () comprising a melt inlet () and a melt outlet (), wherein between the melt inlet () and the melt outlet () at least a melt guidance means () is assembled for a rearrangement of molten material () from the centre () of the melt inlet () to the edge () of the melt outlet () and for a rearrangement of molten material () from the edge () of the melt inlet () into the centre () of the melt outlet ().

Overturning device for overturning molten material and rinsing method

The present invention relates to an overturning device () for overturning a molten material () in a melt channel () comprising a melt inlet () and a melt outlet () wherein between the melt inlet () and the melt outlet () at least one melt guidance means () is assembled for a rearrangement of the molten material () from the center () of the melt inlet () to the edge () of the melt outlet () and for rearrangement of the molten material () from the edge () of the melt inlet () into the center () of the melt outlet ().

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Essen, Germany

Markus Bussmann