DE102006024118A1 - High speed production of open extruded plastics profile, e.g. roof gutter profile, by extruding plasticized mass through slit die then thermoforming obtained flat strip - Google Patents

High speed production of open extruded plastics profile, e.g. roof gutter profile, by extruding plasticized mass through slit die then thermoforming obtained flat strip Download PDF

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Publication number
DE102006024118A1
DE102006024118A1 DE200610024118 DE102006024118A DE102006024118A1 DE 102006024118 A1 DE102006024118 A1 DE 102006024118A1 DE 200610024118 DE200610024118 DE 200610024118 DE 102006024118 A DE102006024118 A DE 102006024118A DE 102006024118 A1 DE102006024118 A1 DE 102006024118A1
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Germany
Prior art keywords
profile
open
plastic
slit die
flat strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE200610024118
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German (de)
Inventor
Uwe Dipl.-Ing. Vogel
Torsten Sahrhage
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Battenfeld Extrusionstechnik GmbH
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Battenfeld Extrusionstechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Battenfeld Extrusionstechnik GmbH filed Critical Battenfeld Extrusionstechnik GmbH
Priority to DE200610024118 priority Critical patent/DE102006024118A1/en
Publication of DE102006024118A1 publication Critical patent/DE102006024118A1/en
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/02—Combined thermoforming and manufacture of the preform
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
    • B29L2031/108—Roofs

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Production of an open extruded profile involves (a) plasticizing plastics material in an extruder, (b) generating a plastics strip by pressing the plasticized mass through a slit die, (c) thermoforming the flat strip to form the open profile and (d) withdrawing the open profile. Independent claims are included for an open plastics profile, obtained by the process and either: (A) having a height at least half of (preferably approximately equal to) the width; or (B) having the functional characteristics of a closed profile.

Description

Die Erfindung betrifft ein Verfahren zur Erzeugung offener Profile.The The invention relates to a method for producing open profiles.

Hierbei wird von Kunststoffprofilen wie z.B. im Extrusionsverfahren hergestellten Dachrinnenprofile, mit mindestens einer geschlossenen Kammer ausgegangen. Dabei wird die Schmelze von einem Extruder durch ein entsprechendes Werkzeug gedrückt. In diesem Werkzeug wird der runde Schmelzestrang zu einem entsprechenden Profil geformt und eine geschlossene Hohlkammer erzeugt. Diese Werkzeuge sind aufwendig in der Herstellung und sehr teuer. Die Produktionsgeschwindigkeit wird durch das Werkzeug und die Kalibrierung begrenzt. Geschwindigkeiten von 5-6m/min sind maximal erreichbar.in this connection is made of plastic profiles such. produced by extrusion Gutters, with at least one closed chamber. The melt from an extruder through a corresponding Tool pressed. In this tool, the round melt strand becomes a corresponding one Profile shaped and creates a closed hollow chamber. These tools are expensive to produce and very expensive. The production speed is limited by the tool and the calibration. speeds from 5-6m / min are maximum achievable.

Aufgabe der Erfindung ist es daher, ein Verfahren anzubieten, mit dem die Produktionsgeschwindigkeit erhöht werden kann.task The invention is therefore to provide a method by which the Production speed increased can be.

Die Lösung der Aufgabe besteht in den Verfahrensschritten: a) Plastifizieren von Kunststoff in einem Extruder, b) Erzeugen eines Kunststoffbandes mittels Pressen der plastifizierten Kunststoffmasse durch eine Schlitzdüse, c) Thermoumformen des flachen Kunststoffbandes zu einem offenen Profil, d) Abziehen des erzeugten Profils.The solution The task consists in the following process steps: a) plasticizing of plastic in an extruder, b) producing a plastic strip by means of Pressing the plasticized plastic mass through a slot die, c) thermoforming of the flat plastic tape to an open profile, d) peel off of the generated profile.

Durch diese Abfolge wird kein aufwendiges Werkzeug benötigt, was zur Steigerung der Produktionsgeschwindigkeit von offenen Profilen führt. Die Kunststoffschmelze wird vom Extruder durch eine Schlitzdüse gedrückt. Hier sind die erreichbaren Geschwindigkeiten deutlich höher. Das so entstandene Band wird mittels Thermoumformung in die entsprechende Form gebracht. Damit lassen sich Produktionsgeschwindigkeiten erreichen, die größer als 10m/min sind. Bei entsprechender Abstimmung kann der Abzug mit einer Geschwindigkeit zwischen 20 und 50m/min gefahren werden. Eine optimale Geschwindigkeit liegt bei ca. 40m/min.By This sequence is no expensive tool needed, which helps to increase the Production speed of open profiles leads. The plastic melt is pressed by the extruder through a slot nozzle. Here are the achievable ones Speeds significantly higher. The resulting tape is thermoformed into the appropriate Brought form. This allows production speeds to be achieved greater than 10m / min are. With appropriate tuning, the trigger can be at a speed be driven between 20 and 50m / min. An optimal speed is about 40m / min.

Die Voraussetzung ist, dass das Produkt wirklich offen ist. Geschlossene Kammern etc. müssen anders ausgeführt sein, so dass sich aus dem Band ein offenes Profil formen lässt. Breitenschwankungen des Bandes können in nicht relevante Bereiche des Profils gelegt werden.The The prerequisite is that the product is really open. closed Chambers etc. need executed differently so that the band can form an open profile. wide fluctuations of the band can be placed in non-relevant areas of the profile.

Die somit erreichbare Höhe eines Profiles beträgt mindestens das 0,5 fache der Breite, kann aber auch annähernd ein Verhältnis von 1:1 annehmen.The thus achievable height of a profile at least 0.5 times the width, but can also be approximately one relationship of 1: 1.

In den Zeichnungen sind schematisch inIn the drawings are schematic in

1 der Verfahrensablauf nach dem Stand der Technik, 1 the procedure according to the prior art,

2 der erfindungsgemäße Ablauf und in 2 the process according to the invention and in

3 ein Profilbeispiel wiedergegeben. 3 a profile example reproduced.

In 1 sind die vier Hauptaggregate einer Extrusionslinie nach dem Stand der Technik wiedergegeben. Hiermit soll verdeutlicht werden, dass dem Extruder ein Werkzeug, dem Werkzeug eine Kalibrierung und der Kalibrierung ein Abzug nachgeschaltet ist. Im Vergleich dazu zeigt die 2 den erfindungsgemäßen Aufbau der Extrusionslinie, die im Vergleich zu 1 verdeutlicht, dass zwischen dem Extruder und dem Abzug eine Schlitzdüse mit nachgeschalteter Thermoumformung angeordnet ist.In 1 the four main components of a prior art extrusion line are shown. This is to make it clear that the extruder is a tool, the tool a calibration and the calibration of a trigger downstream. In comparison, the shows 2 the structure of the extrusion line according to the invention, compared to 1 illustrates that between the extruder and the trigger a slot nozzle with downstream thermoforming is arranged.

3 zeigt den Querschnitt einer Dachrinne, die beispielsweise nach dem erfindungsgemäßen Verfahren hergestellt werden kann. Es soll hier verdeutlicht werden, dass eine annähernd geschlossene Kammer 2 am offenen Profil 1 durch entsprechende Umkonstruktion für die Thermoumformung geeignet gestaltet werden kann. Die Funktionsmerkmale eines geschlossenen Profils, zumindest mit einer geschlossenen Kammer, bleiben dabei erhalten. 3 shows the cross section of a gutter, which can be prepared for example by the method according to the invention. It should be clarified here that an approximately closed chamber 2 at the open profile 1 can be designed suitable for thermoforming by appropriate redesign. The functional features of a closed profile, at least with a closed chamber, are retained.

11
Profilprofile
22
offene Kammeropen chamber

Claims (6)

Verfahren zum Erzeugen eines offenen Extrusionsprofiles, das die Schritte umfasst: a) Plastifizieren von Kunststoff in einem Extruder, b) Erzeugen eines Kunststoffbandes mittels Pressen der plastifizierten Kunststoffmasse durch eine Schlitzdüse, c) Thermoumformen des flachen Kunststoffbandes zu einem offenen Profil, d) Abziehen des erzeugten Profils.Method for producing an open extrusion profile, which includes the steps: a) plasticizing plastic in an extruder, b) generating a plastic tape by means Pressing the plasticized plastic mass through a slot die, c) Thermoforming the flat plastic strip into an open profile, d) Peel off the generated profile. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Abzugsgeschwindigkeit größer als 10m/min beträgt.Method according to claim 1, characterized in that that the take-off speed is greater than 10m / min. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Abzugsgeschwindigkeit zwischen 20 und 50m/min, vorzugsweise bei 40m/min liegt.Method according to claim 2, characterized in that that the withdrawal speed between 20 and 50m / min, preferably at 40m / min. Offenes Kunststoffprofil, erzeugt nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Höhe des Profils mindestens das 0,5fache der Breite beträgt.Open plastic profile, produced according to one of the claims 1 to 3, characterized in that the height of the profile at least the 0.5 times the width. Offenes Kunststoffprofil nach Anspruch 4, dadurch gekennzeichnet, dass das Verhältnis zwischen Breite und Höhe des Profils annähernd 1 ist.Open plastic profile according to claim 4, characterized characterized in that the ratio between width and height approximate the profile 1 is. Offenes Kunststoffprofil, erzeugt nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, die Funktionsmerkmale eines geschlossenen Profils erhalten bleiben.Open plastic profile, produced according to one of the claims 1 to 3, characterized, the functional characteristics of a closed Profils are preserved.
DE200610024118 2006-05-22 2006-05-22 High speed production of open extruded plastics profile, e.g. roof gutter profile, by extruding plasticized mass through slit die then thermoforming obtained flat strip Ceased DE102006024118A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200610024118 DE102006024118A1 (en) 2006-05-22 2006-05-22 High speed production of open extruded plastics profile, e.g. roof gutter profile, by extruding plasticized mass through slit die then thermoforming obtained flat strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610024118 DE102006024118A1 (en) 2006-05-22 2006-05-22 High speed production of open extruded plastics profile, e.g. roof gutter profile, by extruding plasticized mass through slit die then thermoforming obtained flat strip

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DE102006024118A1 true DE102006024118A1 (en) 2007-11-29

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT304864B (en) * 1967-11-03 1973-01-25 Mueanyagipari Ki Method and device for the continuous production of bottle-shaped or longitudinally profiled bodies or plates made of plastic

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT304864B (en) * 1967-11-03 1973-01-25 Mueanyagipari Ki Method and device for the continuous production of bottle-shaped or longitudinally profiled bodies or plates made of plastic

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