Method for evaluating at least one industrial process

Patent metadata

Field	Value
Publication number	US-11148341-B2
Application number	US-201716091772-A
Country	US
Kind code	B2
Filing date	Feb 9, 2017
Priority date	Apr 8, 2016
Publication date	Oct 19, 2021
Grant date	Oct 19, 2021

Abstract

The invention relates to a method ( 100 ) for evaluating at least one industrial process for the film production of a film and/or for the further processing using the film, comprising at least one production device ( 20 ) which is operated for the production of the film, and at least one further processing device ( 30 ) which is operated for further processing using the film.

First claim

The invention claimed is:

1. A method for evaluating at least one industrial process for at least the film production of a plastic film or further processing with the film, with at least one production device, which is operated for the film production of the film, and at least one further processing device, which is operated for the further processing with the same film,
wherein the following steps are carried out accompanying the process:
determining production process data on the production device during the film production,
determining further processing process data on the further processing device during the further processing,
carrying out of data transmission for the provision of at least the production process data or of the further processing process data,
determining a correlation based on a process model configured to perform a predictive assessment between the production process data and the further processing process data, wherein at least one evaluation criterion is assessed, so that an evaluation result is established,
at least providing the evaluation result or the production process data or the further processing process data, and
adapting the further processing of the film by the at least one further processing device based on the evaluation result.

2. The method according to claim 1 ,
wherein
in the data transmission, the production process data are at least provided or are permanently stored, at least product-related or order-related, for a respective product of the film production, wherein optionally at least the product-related or order-related production process data are transmitted, via at least a communication- or internet connection, to a central processing device, wherein the following steps are optionally provided:
selecting the production process data relevant for at least the further processing, or the correlation, or the evaluation result, so that a selection is established,
providing the selection for the further processing, and
adapting the further processing based on the selection.

3. The method according to claim 1 ,
wherein
the data transmission occurs as an automated data exchange, wherein the data exchange is carried out in such a manner that the production process data are at least partially transmitted to the further processing device.

4. The method according to claim 1 ,
wherein
the data transmission is carried out in such a manner that at least the production process data or the further processing data are at least partially transmitted to a central processing device, optionally via at least a communication or internet connection, wherein, optionally, the central processing device subsequently determines the correlation or provides the transmitted production or further processing process data or the correlation, via the communication or internet connection, for further evaluation.

5. The method according to claim 1 ,
wherein
the data transmission occurs based on an identifier permanently assigned to at least the production process data or further processing process data, which is optionally secured to a product of the process.

6. The method according to claim 1 ,
wherein
the data transmission occurs at least during the film production or further processing, optionally at least cyclically or event-triggered, between at least one or multiple further processing devices or one or multiple production devices.

7. The method according to claim 1 ,
wherein
the process includes at least one or multiple production- or further processing devices, wherein, at least on the respective production or further processing devices, respectively assigned production or further processing process data are determined, wherein, accompanying the process, one or multiple correlations are determined for respectively different of at least the respectively assigned production or further processing process data.

8. The method according to claim 1 ,
wherein
the evaluation result comprises at least one of the subsequent information, at least which optionally is assigned to at least one device of the process, or which is determined from the production process data or the further processing process data:
at least one performance metric of the at least one device of the process,
at least one indication about maintenance work,
at least one processing speed,
at least one mechanical or optical property of the film,
at least one film formula for the film production or further processing,
at least one range of variability of the forces or moments in the film production or further processing,
indications or parameters or optimization proposals for the further processing or the film production, and
information about a process module located upstream of the film production or a raw material of the further processing or film production,

wherein the evaluation result is at least partially provided to a film manufacturer or a film further processor, optionally through an internet platform.

9. The method according to claim 1 ,
wherein
at least the production process data or the further processing process data include at least one of the following information, which optionally are determined via at least one sensor in a device of the process:
at least one indication about a conjunction between stress and strain in the film,
at least one indication about unwinding forces in the film,
a number of the film tears in the further processing,
at least a number or a type of a product of the further processing, or of a further process,
at least a measured force value, or a torque in the device,
a temperature value, which was detected in the device,
a film formula for the film production or further processing,
at least optical or acoustic information,
errors or warnings, and
a number of occurred further processing steps with the film.

10. The method according to claim 1 ,
wherein
the further processing process data, through a detection of at least one of the following process parameters, are determined on the least one further processing device:
mechanical properties of the film, wherein optionally the film is configured as a stretch film,
friction values of the film, wherein optionally the film is configured as an FFS film,
at least deformation forces or curvature of the film, wherein the film is optionally configured as a deep-drawing film,
at least parameter of a modulus of elasticity or defects of the film or winding parameters or unwinding forces or curvature, wherein the film is optionally configured as a printed film,
at least unwinding forces of the film or curvature, wherein the film is optionally configured as a metalizing foil, and
the seal performance of the film used.

11. The method according to claim 1 ,
wherein
the evaluation criterion comprises at least a film formula or a film-related default optionally with pre-defined film properties, or at least one manufacturing parameter of the production device, or a default of the further processing device for the film.

12. The method according to claim 1 ,
wherein
in a selection of further production process data, which are determined for a film assigned to the further production process data, based on at least one previously determined correlation, at least an estimated result of the further processing of the assigned film, or an estimated behavior of the assigned film in the further processing is predicted.

13. The method according to claim 1 ,
wherein
the correlation is thereby determined, in that an assessment of the determined production process data and of the determined further processing data occurs at leas

Assignees

• Windmoeller & Hoelscher

Inventors

• Schmitz Torsten

Classifications

• B29C48/92 Primary

  Measuring, controlling or regulating · CPC title

• B29C48/0017

  combined with blow-moulding or thermoforming · CPC title

• B29C48/0023

  combined with printing or marking · CPC title

• B29C48/28

  Storing of extruded material, e.g. by winding up or stacking · CPC title

• B29C48/0019

  combined with shaping by flattening, folding or bending · CPC title