DE1984772U - TOOL FOR EXTRUDING HOLLOW PROFILES FROM THERMOPLASTIC PLASTICS. - Google Patents

TOOL FOR EXTRUDING HOLLOW PROFILES FROM THERMOPLASTIC PLASTICS.

Info

Publication number
DE1984772U
DE1984772U DEF30915U DEF0030915U DE1984772U DE 1984772 U DE1984772 U DE 1984772U DE F30915 U DEF30915 U DE F30915U DE F0030915 U DEF0030915 U DE F0030915U DE 1984772 U DE1984772 U DE 1984772U
Authority
DE
Germany
Prior art keywords
tool
hollow profiles
thermoplastic plastics
extruding hollow
flow
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.)
Expired
Application number
DEF30915U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
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.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Priority to DEF30915U priority Critical patent/DE1984772U/en
Publication of DE1984772U publication Critical patent/DE1984772U/en
Expired legal-status Critical Current

Links

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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting

Landscapes

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

Description

' PAH9116*13.3.'PAH9116 * 13.3.

FARBWERKl "HOECHST AG
vormals Meister Lucius & BrüningFARBWERKl "HOECHST AG
formerly Master Lucius & Brüning

Frankfurt (Main)-HöchstFrankfurt (Main) -Hochst

A η 1 a g.e I . <j>2a Oktober 1966 A η 1 a ge I. <j> 2 a October 1966

DEkuSchm/sdlDEkuSchm / sdl

zur Patentanmeldung Fw ^195 = fe 746for patent application Fw ^ 195 = fe 746

Werkzeug atm Esrtrudieren von Hohlprofilen aus thermoplastisehen KunststoffenTool atm extrusion from hollow profiles thermoplastic plastics

Gegenstand der Erfindung ist ein Werkzeug zua Extrudieren von Hohlprofilen aus thermoplastischen Kunststoffen«The invention relates to a tool for extrusion of hollow profiles made of thermoplastics «

Der aus dem Extruder strangförmig austretende Schmelaen·= strom wird von der Domspitae geteilt, den Dornhaltenmgs·=· stegen zugeführt und dabei radial aufgeweitet und/oder umgelenkt ο Bei großdiaertsionierten Hohlsträngen, wie z. Bo Bohren mit großen Durchmesser und großer Wanddicke9 ist der sum Yerschweißen der nunmehr vorliegenden Q?eilströme erforderliche Staudruck hinter den Dornhalterungsstegen zu klein, insbesondere für hochviskose Kunststoffschmelzen» Es treten ungleichmäßige Strömungen am Düsenumfang auf und ungleichmäßige Wanddicken am Hohlprofil <>The Schmelaen · = flow emerging from the extruder is divided by the dome tip, fed to the mandrel retainers · = · webs and thereby expanded and / or deflected radially. Drilling, drilling with a large diameter and a large wall thickness 9 , the dynamic pressure required behind the mandrel mounting webs is too small for the sum of the welding of the now existing flow streams, especially for highly viscous plastic melts

Es sind Werkzeuge bekannt geworden, die hinter den iDorn=- haiterungsstegen fest angeordnete FließkanalVerengungen aufweisen, die ein sauberes Sksammenfließen der Seilströme bex-rirken sollen^ Diese Werkzeuge haben ,jedoch den Hachteil,Tools have become known that are behind the iDorn = - retention webs fixed flow channel constrictions have a clean flow of the rope currents bex-rirken ^ These tools should have, but the disadvantage,

daß die Fließkanalverengung nur für einen Kunst st off strom bestimmter Viskosität den gewünschten Zusammenfluß bewirken.that the flow channel constriction only for a plastic st off stream certain viscosity cause the desired confluence.

Es xfurde ein Werkzeug zum Herstellen von Hohlprofilen aus thermoplastischen Kunststoffen gefunden, bei dem sich im Düsenkanal hinter den Dornhalterungsstegen eine Fließkanal-Verengung befindet, dadurch gekennzeichnet, daß die Fließkanalverengung durch einen mittels Zug- und Druckschrauben verstellbaren Stauring erzielt wird«It xfurde a tool for the production of hollow profiles thermoplastic plastics found, in which there is a flow channel constriction in the nozzle channel behind the mandrel mounting webs located, characterized in that the flow channel constriction by means of tension and compression screws adjustable storage ring is achieved "

Das erfindungsgemäße Werkzeug wird in den Figuren 1 und 2 beispielsweise erläutert«The tool according to the invention is explained in FIGS. 1 and 2, for example.

Figur 1 zeigt die Anordnung des Staurings im Fließkanal, Figur 2 die schematische Darstellung eines Werkzeugs für Hohlprofile mit großem Durchmesser«Figure 1 shows the arrangement of the retaining ring in the flow channel, Figure 2 shows the schematic representation of a tool for Large diameter hollow profiles "

Zwischen dem Gehäuse 1 und dem Dorn 2 sind die den Dorn haltenden Stege 3 angebracht und teilen den Schmelzenstrom, der in Pfeilrichtung fließt« Hinter den Stegen soll der Schmelzenstrom wieder zusammenfließen ο Dies kann aber nur geschehen, wenn an dieser Stelle noch ein ausreichender Staudruck herrscht» Dieser wird mittels eines Stauringes 4-eingestellt, der mit seiner abgerundeten Oberkante 5 i& denBetween the housing 1 and the mandrel 2, the webs 3 holding the mandrel are attached and divide the melt flow that flows in the direction of the arrow «Behind the webs, the melt flow should flow together again o This can only happen if there is still sufficient dynamic pressure at this point »This is set by means of a storage ring 4-which with its rounded upper edge 5 i & the

GaGa

Schmelzenstrom ragt und mit Hilfe von Zug-/und Druckschrauben 6 senkrecht zum Schmelzenstrom verstellt werden kann» Dem im Gehäuse 1 eingepaßten Stauring 4 gegenüber verläuft im Dorn 2 eine umlaufende, abgerundete Hut; 7» Figur 2 macht deutlich, daß der Stauring 4- dann besonders wirksam ist, x-renn er auf einen radial fließenden Schmelzenstrom wirkt» Hinter dem Stauring 4 findet die abermalige Umlenkung in die Ringdüsen 8 statt»The melt flow protrudes and can be adjusted perpendicular to the melt flow with the aid of tension and pressure screws 6. 7 » Figure 2 makes it clear that the baffle ring 4 is particularly effective when it acts on a radially flowing melt stream» Behind the baffle ring 4, the repeated deflection into the ring nozzles 8 takes place »

Die Anordnung gexfährleistet einen gleichmäßigen Schmelzen·=· stroia, da je nach Viskosität der Schmelze der für ein gleichmäßiges Zusammenfließen der Teilströme erforderliche Staudruck einreguliert werden kann«The arrangement ensures uniform melting = stroia, because depending on the viscosity of the melt, the for one uniform confluence of the partial flows required back pressure can be regulated «

Claims (1)

P aJ^e-Ä^!" anspruchP aJ ^ e-Ä ^! "Claim Werkzeug zum Herstellen von Hohlprofilen aus thermoplastischen Kunststoffen durch Extrudieren,, "bei dem sich im Düsenkanal hinter den DornhalterungsStegen eine Pließkanal= Verengung befindet * dadurch gekennzeichnet, daß diese IließkanalVerengung durch einen mit Zug- und Druckschrauben verstellbaren Stauring erzielt wird»Tool for producing hollow profiles from thermoplastic materials by extruding ,, "in which in the nozzle channel behind the mandrel holder webs a Pließkanal = constriction is * characterized in that said Il ießkanalVerengung is achieved by an adjustable with tension and pressure screws baffle ring"
DEF30915U 1966-10-14 1966-10-14 TOOL FOR EXTRUDING HOLLOW PROFILES FROM THERMOPLASTIC PLASTICS. Expired DE1984772U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF30915U DE1984772U (en) 1966-10-14 1966-10-14 TOOL FOR EXTRUDING HOLLOW PROFILES FROM THERMOPLASTIC PLASTICS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF30915U DE1984772U (en) 1966-10-14 1966-10-14 TOOL FOR EXTRUDING HOLLOW PROFILES FROM THERMOPLASTIC PLASTICS.

Publications (1)

Publication Number Publication Date
DE1984772U true DE1984772U (en) 1968-05-02

Family

ID=33334733

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF30915U Expired DE1984772U (en) 1966-10-14 1966-10-14 TOOL FOR EXTRUDING HOLLOW PROFILES FROM THERMOPLASTIC PLASTICS.

Country Status (1)

Country Link
DE (1) DE1984772U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363208A2 (en) 2010-02-15 2011-09-07 Hitachi Power Europe GmbH Milling device with a dust flow changing element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363208A2 (en) 2010-02-15 2011-09-07 Hitachi Power Europe GmbH Milling device with a dust flow changing element

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