DE1184941B - Calibration device for the production of plastic profiles - Google Patents

Calibration device for the production of plastic profiles

Info

Publication number
DE1184941B
DE1184941B DEF37268A DEF0037268A DE1184941B DE 1184941 B DE1184941 B DE 1184941B DE F37268 A DEF37268 A DE F37268A DE F0037268 A DEF0037268 A DE F0037268A DE 1184941 B DE1184941 B DE 1184941B
Authority
DE
Germany
Prior art keywords
die
calibration device
production
calibration
profiles
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.)
Pending
Application number
DEF37268A
Other languages
German (de)
Inventor
Karl Martin
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Priority to DEF37268A priority Critical patent/DE1184941B/en
Publication of DE1184941B publication Critical patent/DE1184941B/en
Pending 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
    • B29C48/25—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
    • 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
    • B29C48/06—Rod-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
    • B29C48/07—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
    • B29C48/25—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
    • 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
    • B29C48/901—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 of hollow bodies
    • B29C48/903—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 of hollow bodies externally
    • 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
    • B29C48/911—Cooling
    • 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
    • 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
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • 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
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means

Landscapes

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

Description

Kalibriervorrichtung zur Herstellung von Kunststoffprofilen Die Erfindung bezieht sich auf eine Kalibriervorrichtung für Kunststoffprofile, vorzugsweise zur Herstellung von maßhaltigen Vollprofilen aus thermoplastischen Kunststoffen.Calibration device for the production of plastic profiles The invention relates to a calibration device for plastic profiles, preferably for Manufacture of dimensionally stable full profiles made of thermoplastics.

Bei den für die Profilherstellung eingesetzten thermoplastischen Kunststoffen ist es normalerweise nicht notwendig, zur Herstellung maßhaltiger Erzeugnisse besondere Kalibrieranlagen zu verwenden. With the thermoplastics used for profile production Plastics are normally not necessary for the manufacture of dimensionally stable products to use special calibration systems.

Es genügt vielmehr, das durch die entsprechend abgestimmte Extruderdüse geformte Profil durch Einfahren in Wasser oder durch Berieselung abzukühlen.Rather, it is sufficient to do this through the appropriately matched extruder nozzle The formed profile can be cooled by running it in water or by sprinkling.

Nach dem derzeitigen Stand der Technik ist es aber noch nicht möglich, in zufriedenstellender Weise gewisse Thermoplaste, wie z. B. Acrylnitril-Butadien-Styrol-Polymerisate und hochmolekulare Polyolefine zu einwandfreien Vollprofilen zu verarbeiten. Die genannten Kunststoffe zeigen nämlich beim Verlassen der Extruderdüse unkontrollierbare Quellungserscheinungen, so daß es mit den herkömmlichen, einfachen Kalibriervorrichtungen, wie Lochblenden, Stäbchen und Führungsleisten sowie bei der Abkühlung durch ein Wasserbad oder durch Berieselung nicht möglich ist, eng tolerierte Profile mit diesen Kunststoffen herzustellen. According to the current state of the art, however, it is not yet possible certain thermoplastics such. B. acrylonitrile-butadiene-styrene polymers and to process high molecular weight polyolefins into perfect full profiles. the Namely, the plastics mentioned show uncontrollable when leaving the extruder nozzle Swelling phenomena, so that it can with the conventional, simple calibration devices, such as perforated diaphragms, rods and guide strips as well as when cooling through a Water bath or by sprinkling is not possible, closely tolerance profiles with these To manufacture plastics.

Die Erfindung zeigt nun eine der Extruderdüse nachgeschaltete Kalibriervorrichtung mit Matritze und Patritze für die Herstellung von Kunststoffprofilen, mit der eine ausgezeichnete Maßhaltigkeit der Profile, selbst bei Schwankungen der Förderleistung des Extruders, gewährleistet wird. Erreicht wird dieses Ziel dadurch, daß - die Matritze mit der Patritze mittels Gewindebolzen mit Flügelmuttern verbunden ist, wobei die Gewindebolzen mit Druckfedern versehen sind, die sich einerseits auf dem Bund des Gewindebolzens und andererseits auf einer Ausdrehung der Matritze abstützen. Dabei weisen sowohl die Matritze als auch die Patritze in Spritzrichtung verlaufende Kühlkanäle auf, während die Kalibrieröffnung an der der Extruderdüse zugewandten Seite abgeschrägte Einzugskanten zeigt. Bei Verwendung einer solchen Kalibriervorrichtung können einfache, nicht besonders abgestimmte Extruderdüsen verwendet werden, während gleichzeitig eine schonende Abkühlung des Stranges zur Vermeidung innerer Spannungen durch die temperierbare Kalibriervorrichtung erreicht wird. So können z. B. The invention now shows a calibration device connected downstream of the extruder nozzle with die and cartridge for the production of plastic profiles, with one Excellent dimensional accuracy of the profiles, even with fluctuations in the delivery rate of the extruder. This goal is achieved by - the The die is connected to the die by means of threaded bolts with wing nuts, wherein the threaded bolts are provided with compression springs, which are on the one hand on the Support the collar of the threaded bolt and, on the other hand, on a recess in the die. Both the die and the cartridge point in the direction of injection Cooling channels on, while the calibration opening on the one facing the extruder nozzle Side shows beveled leading edges. When using such a calibration device simple, not specially coordinated extruder nozzles can be used while at the same time a gentle cooling of the strand to avoid internal tension is achieved by the temperature-controlled calibration device. So z. B.

Kunststoffprofile mit einer Kalibrierdüsentemperatur von 1000 C hergestellt werden. Es können mit Hilfe dieser Kalibriervorrichtung für die Herstellung maßhaltiger Profile thermoplastische Kunststoffe, wie beispielsweise Polystyrol und Polyvenylchlorid und dessen Copolymerisate sowie Polyamide und Polyurethane verwendet werden.Plastic profiles manufactured with a calibration nozzle temperature of 1000 C. will. It can with the help of this calibration device for the production of dimensionally stable Profiles thermoplastics such as polystyrene and polyvinyl chloride and its copolymers as well as polyamides and polyurethanes are used.

Die Zeichnung stellt schematisch ein Ausführungsbeispiel einer erfindungsgemäßen Kalibriervorrichtung dar. The drawing shows schematically an embodiment of an inventive Calibration device.

Die Kalibriervorrichtung besteht aus der Matritze 1 und der Patritze 2, die zwischeneinander das Profil ausbilden und die an den Ecken durch die Gewindebolzen 3 und die Flügelmuttern 4 zusammengehalten werden. Auf dem Gewindebolzen 3 sitzen die Druckfedern, die sich einerseits auf einem Bund der Gewindebolzen und andererseits auf einer Ausdrehung der Matratze 1 abstützen. Die durch Matritze 1 und Patritze 2 verlaufenden Kühlkanäle 6 leiten ein Kühlmedium durch die Kalibriervorrichtung. An der Matritze 1 ist ferner die Aufspannleiste 7 mit der Feststellschraube 8 angebracht, mit deren Hilfe die Kalibriervorrichtung an einer Haltevorrichtung des Extruders befestigt werden kann. The calibration device consists of the die 1 and the cartridge 2, which form the profile between each other and those at the corners through the threaded bolts 3 and the wing nuts 4 are held together. Sit on the threaded bolt 3 the compression springs, which are on the one hand on a collar of the threaded bolts and on the other hand Support on a recess in the mattress 1. The through die 1 and cartridge 2 running cooling channels 6 conduct a cooling medium through the calibration device. The clamping bar 7 is also attached to the die 1 with the locking screw 8, with the help of which the calibration device is attached to a holding device of the extruder can be attached.

Die abgeschrägten Einzugskanten der Kalibrieröffnung gewährleisten, daß der von der Extruderdüse ankommende, noch plastische Kunststoff allmählich zu dem endgültigen Profil geformt wird. Durch diese elastische Verbindung zwischen Matritze und Patritze wird eine bestimmte Schließkraft ausgeübt.The beveled feed edges of the calibration opening ensure that that the still plastic plastic arriving from the extruder nozzle gradually increases is shaped to the final profile. This elastic connection between A certain closing force is exerted on the die and the cartridge.

Durch das elastische Ausweichen der Patritze werden kleinere Förderstöße des Extruders ausgeglichen und auf die Länge der Vorrichtung so gleichmäßig verteilt, daß keine Beeinflussung der maßlichen Toleranzen auftritt.The elastic deflection of the cartridge results in smaller pumping pulses of the extruder and evenly distributed over the length of the device so that that there is no influence on the dimensional tolerances.

Für die exakte Einstellung der Profilstärke werden zweckmäßig Mikrotaster vorgesehen, die eine reproduzierbare Einstellung der Abmessung erlauben. Die Abmessung des zu fertigenden Profils bestimmt jeweils die Länge der Kalibriervorrichtung, die 400mm nicht unterschreiten sollte, da sonst keine ausreichende Kühlung gewährleistet ist. Als Werk- For the exact setting of the profile thickness, micro buttons are useful provided that allow a reproducible setting of the dimensions. The dimension of the profile to be manufactured determines the length of the calibration device, which should not be less than 400mm, otherwise sufficient cooling will not be guaranteed is. As a work

Claims (2)

stoff für die Vorrichtung wird wegen seiner guten Wärmeleitfähigkeit und Gleiteigenschaft Aluminium verwendet Patentansprüche: 1. Der Extruderdüse einer Strangpresse nachgeschaltete Kalibriervorrichtung zur Herstellung von Profilen aus thermoplastischen Kunststoffen, bestehend aus einer das Profil ausbildenden Matritze und Patritze, dadurch gekennzeichnet, daß die Matritze(1) mit der Patritze (2) mittels Gewindebolzen (3) und Flügelmuttern (4) verbunden ist, wobei die Ge- windebolzen (3) mit Druckfedern (5) versehen sind, die sich einerseits auf einem Bund der Gewindebolzen und andererseits auf einer Ausdrehung der Matritze (1) abstützen, daß sowohl die Matritze (1) als auch die Patritze(2) in Spritzrichtung verlaufende Kühlkanäle (6) aufweisen und daß die Kalibrieröffnung an der der Extruderdüse zugewandten Seite abgeschrägte Einzugskanten (9) hat.material for the device is because of its good thermal conductivity and sliding property aluminum uses claims: 1. The extruder nozzle one Extrusion press downstream calibration device for the production of profiles thermoplastics, consisting of a die forming the profile and die, characterized in that the die (1) with the die (2) by means of Threaded bolts (3) and wing nuts (4) are connected, whereby the threaded bolts (3) are provided with compression springs (5), which are on the one hand on a collar of the threaded bolt and on the other hand on a recess of the die (1) support that both the The die (1) and the die (2) have cooling channels (6) running in the direction of injection have and that the calibration opening on the side facing the extruder nozzle has beveled feed edges (9). 2. Kalibriervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß an der Unterseite der Matritze (1) eine Aufspannleiste (7) mit Feststellschraube (8) angebracht ist. 2. Calibration device according to claim 1, characterized in that that on the underside of the die (1) a clamping bar (7) with a locking screw (8) is attached.
DEF37268A 1962-07-09 1962-07-09 Calibration device for the production of plastic profiles Pending DE1184941B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF37268A DE1184941B (en) 1962-07-09 1962-07-09 Calibration device for the production of plastic profiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF37268A DE1184941B (en) 1962-07-09 1962-07-09 Calibration device for the production of plastic profiles

Publications (1)

Publication Number Publication Date
DE1184941B true DE1184941B (en) 1965-01-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEF37268A Pending DE1184941B (en) 1962-07-09 1962-07-09 Calibration device for the production of plastic profiles

Country Status (1)

Country Link
DE (1) DE1184941B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1291896B (en) * 1965-10-18 1969-04-03 Buerkle Kg Kehlleistenfabrik Cooled calibration nozzle in extrusion systems for profiles made of thermoplastic material
EP0086623A1 (en) * 1982-02-11 1983-08-24 DeZen, Vittorio Vacuum sizing device
DE4028116A1 (en) * 1989-10-31 1991-05-02 Theysohn Friedrich Fa CALIBRATION UNIT WITH INTEGRATED JOINT FOR AN EXTRUDER FOR PLASTIC PROFILES
US5288218A (en) * 1993-02-11 1994-02-22 Mikron Industries Extrusion calibrator
EP1048434A2 (en) * 1999-04-21 2000-11-02 CONPRO GmbH Calibrating sleeve having adjustable diameter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1291896B (en) * 1965-10-18 1969-04-03 Buerkle Kg Kehlleistenfabrik Cooled calibration nozzle in extrusion systems for profiles made of thermoplastic material
EP0086623A1 (en) * 1982-02-11 1983-08-24 DeZen, Vittorio Vacuum sizing device
US4401424A (en) * 1982-02-11 1983-08-30 Vittorio De Zen Vacuum sizing device
DE4028116A1 (en) * 1989-10-31 1991-05-02 Theysohn Friedrich Fa CALIBRATION UNIT WITH INTEGRATED JOINT FOR AN EXTRUDER FOR PLASTIC PROFILES
US5169650A (en) * 1989-10-31 1992-12-08 Friedrich Theysohn Gmbh Calibration unit for extruded plastic material
US5288218A (en) * 1993-02-11 1994-02-22 Mikron Industries Extrusion calibrator
US5316459A (en) * 1993-02-11 1994-05-31 Mikron Industries Extrusion calibrator with insert plates
EP1048434A2 (en) * 1999-04-21 2000-11-02 CONPRO GmbH Calibrating sleeve having adjustable diameter
EP1048434A3 (en) * 1999-04-21 2001-02-14 CONPRO GmbH Calibrating sleeve having adjustable diameter

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