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Method and facility for producing a plastic film

A technology for manufacturing equipment and plastic films, which is applied in applications, flat products, household appliances, etc., and can solve problems such as downtime and long downtime of blown film equipment

Active Publication Date: 2019-05-21
REIFENHAEUSER GMBH & CO KG MASCHFAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such failures of measuring devices or measuring sensors cannot be adequately compensated for in hitherto known systems and can even lead to a shutdown of the entire blown film plant in the event of major abnormalities and thus possibly also undesired comparative long downtime

Method used

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  • Method and facility for producing a plastic film
  • Method and facility for producing a plastic film

Examples

Experimental program
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Embodiment Construction

[0035] figure 1 A film production plant for producing a film tube 1 or a film web formed therefrom is shown in the form of a blown film plant according to the invention. In this case, the film tube is extruded from the annular slit nozzle 2 of the spray head 3 . For this purpose, the plastic or plastic melt is fed to the spray head 3 or the annular slot nozzle 2 by means of the extruder 4 . Preferably and in this exemplary embodiment, the extruded film hose 1 is cooled by means of a cooling device 5 , drawn out and flattened by means of a pulling device 10 and wound up into a film roll 7 by means of a winding device 6 Or wound into a film coil.

[0036] Expediently and in this embodiment, the plastic is fed to the extruder 4 via the distribution funnel 11 in the form of plastic pellets. Preferably and in this embodiment, the plastic melt is directed via the cleaning screen 12 to the spray head 3 or the annular slot nozzle 2 by means of the extruder 4 . It is within the sco...

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PUM

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Abstract

The invention relates to a method for producing a plastic film from a thermoplastic material in a film-production facility by extrusion out of a nozzle, the plastic or plastic melt of the nozzle beingsupplied by means of at least one extruder. The tubular film or web of film is then extruded from the nozzle and wound up by means of a winding device to form a film reel or a film coil. A referenceparameter is provided, and when the facility is in operation, at least two, preferably at least three input parameters different from the reference parameter are measured by means of measuring devices. An output parameter corresponding to the reference parameter is determined from said measured input parameters by means of at least one evaluation device.

Description

technical field [0001] The invention relates to a method for extruding from a nozzle in a film manufacturing plant, especially by extruding a film tube from an annular slit nozzle of a spray head or by extruding a film web from a wide slit nozzle. Process for the production of plastic films from plastics, wherein plastic or a plastic melt is fed to a nozzle by means of at least one extruder, and the film tube or film web is then extruded from the nozzle, preferably cooled by means of a cooling device and cooled by means of a coil The winding device is wound into a film roll or a film coil. According to a particularly preferred embodiment, the invention relates to a method for producing blown films from thermoplastics in a blown film plant by extrusion through an annular slot nozzle of a spray head. Furthermore, the invention relates to a film production plant for producing plastic films from thermoplastics with a nozzle for extruding a plastic film, preferably an annular slit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C55/28B29C48/28B29C48/355B29C48/92
CPCB29C2948/92209B29C48/28B29C2948/92019B29C2948/92038B29C2948/92085B29C2948/92095B29C2948/92123B29C2948/926B29C2948/92685B29C2948/92761B29C48/92B29C48/08B29C48/10B29C48/0018B29C2948/92152B29C48/355B29K2101/12B29L2007/008B29L2023/00
Inventor T·费特M·希尔格斯C·莱托斯基J·马格A·勒斯纳C·施特尔特A·福登卡雷维克
Owner REIFENHAEUSER GMBH & CO KG MASCHFAB
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