EP3529036A1 - Procédé et dispositif pour produire des profilés en matière plastique - Google Patents

Procédé et dispositif pour produire des profilés en matière plastique

Info

Publication number
EP3529036A1
EP3529036A1 EP17791540.2A EP17791540A EP3529036A1 EP 3529036 A1 EP3529036 A1 EP 3529036A1 EP 17791540 A EP17791540 A EP 17791540A EP 3529036 A1 EP3529036 A1 EP 3529036A1
Authority
EP
European Patent Office
Prior art keywords
calibration
tools
data
tool
extrusion
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.)
Withdrawn
Application number
EP17791540.2A
Other languages
German (de)
English (en)
Inventor
Thomas STADLHUBER
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3529036A1 publication Critical patent/EP3529036A1/fr
Withdrawn legal-status Critical Current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
    • B29C48/904—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 using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/25—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
    • B29C48/905—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 using wet calibration, i.e. in a quenching tank
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/255—Flow control means, e.g. valves
    • 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
    • B29C48/256—Exchangeable extruder parts
    • 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
    • B29C48/265—Support structures or bases for apparatus, e.g. frames
    • 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
    • B29C48/266—Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated
    • 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
    • B29C48/907—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 using adjustable calibrators, e.g. the dimensions of the calibrator being changeable

Definitions

  • the invention relates to a method for producing plastic profiles in an extrusion line consisting of a plurality of tools, in which a starting material is plasticized and shaped in an extruder, then cooled and calibrated in at least one dry calibration unit and at least one calibration tank, and then subdivided into individual profile sections ,
  • Plastic profiles are produced in extrusion lines in which an extruder first ejects a hotter and plastically deformable profile strand, which is then processed in calibration tools into a plastic profile with precisely defined geometrical properties.
  • the setting of such an extrusion line is very complicated, since a large number of parameters have to be defined for the individual tools. These parameters interact in complex ways to give a product with specific properties.
  • the operation of such extrusion lines requires qualified personnel to minimize scrap. Nevertheless, it often happens that undesirable characteristics of the manufactured plastic profile occur due to slightly changed environmental conditions, so that may be produced large quantities of defective plastic profiles, if the need for improved adjustment is not noticed immediately and appropriate corrective measures are not initiated.
  • a particularly difficult task is the re-adjustment of an extrusion line, which is required if significant changes are made, especially if another plastic profile is to be produced. Even if there are already empirical data on favorable adjustment parameters under similar circumstances, it is often difficult to achieve a stable manufacturing process quickly and efficiently.
  • the object of the present invention is to avoid the abovementioned disadvantages and to provide a method which makes it possible on the one hand to optimally use existing empirical data on extrusion processes in order to be able to carry out the initial setting process quickly and efficiently, and on the other hand to optimally lead a running extrusion process.
  • a central control unit which is in communication with the tools and on the one hand data for unambiguous identification of the tool and on the other hand, receives data about the state of the tool, which returns and setting data for this and other tools.
  • One aspect of the present invention is the immediate use of measurements determined on the tools and data about the tool to determine adjustment data. It has been found that similar tools do not necessarily behave in a similar manner due to imperceptible differences in real operation in an extrusion line. Therefore, it is essential to the invention that each tool be uniquely identifiable and that all relevant setting data related to that tool be managed accordingly.
  • the measured values that yield the data include, for example, temperature, pressure, flow rates, and the like at various locations on the extruder, dry calibration units, calibration tanks, and the like.
  • setting data are here, for example, the extrusion speed, and generally all settings of valves, pumps and the like. Denoted, which allow the control of an extrusion line.
  • An important aspect of the present invention is that the tools are as directly and confusingly as possible in connection with the supply devices for water or vacuum and with the control unit, so that the integrity of the data is guaranteed.
  • control device has a database in which a plurality of setting data are stored and that this database is used in the determination of the setting data.
  • This database is constantly being extended and supplemented as part of the use of the appropriate tools, so that the amount of usable empirical values is constantly increasing.
  • a particularly clear and traceable determination of the setting data can be achieved by creating an extrusion model from the data stored in the database, which is used in the determination of the setting data.
  • the extrusion model depicts the basic relationships between the setting data and the resulting measured values, thus enabling targeted interventions when the extrusion process is in an unsatisfactory state.
  • adjustment data are output in the form of correction values.
  • Such correction values consist, for example, of a specific increase in a quantity of cooling water at a specific point of a specific tool.
  • a correction value relates to the extrusion rate. It is also possible, for example, for a correction value to concern the selective cooling of parts of the profile cross section in the area of the extrusion nozzle, or for a correction value to concern the control of the cooling water flow in at least one section of the calibration tank.
  • the present invention also relates to an apparatus for producing plastic profiles in a multi-tool extrusion line in which at least one dry calibration unit and at least one calibration tank are provided downstream of an extruder, which are arranged on a calibration table.
  • a control unit connected to a plurality of tools is provided.
  • the dry calibration units are connected via hoses to water or vacuum connections of a supply device, which is typically arranged in the calibration table.
  • a clear association between the tool and the supply device is not possible or at least error-prone.
  • the direct connection preferably comprises both water and vacuum as well as data communication. In this way, not only the risk of faulty connections is reduced, it can also be the conversion of an extrusion line particularly fast and efficient, since essentially only a mechanical connection of a tool with the calibration table is required to ensure full functionality.
  • a structurally particularly favorable solution provides that at least one dry calibration unit has a support surface with standardized connections which correspond to associated connections on the calibration table.
  • the flexibility of the device can be increased in particular by the fact that the calibration table identifies a recognition device for unoccupied connections. Not every tool necessarily has the same number of terminals and a different number of tools is also used depending on the profile geometry. By the detection device is thus ensured that, for example, water can not escape, because unused connections are automatically shut off. The same applies to vacuum.
  • a particularly high energy efficiency can be achieved in that at least one dry calibration unit has a plurality of separate water circuits.
  • the cooling channels of the dry calibration units typically have different cross sections.
  • only one temperature level is available for the cooling water.
  • several water cycles are now provided, in which both the amounts and the temperatures of the flowing cooling water can be set differently.
  • critical profile sections such as, for example, extremities with sealing grooves and the like, are surrounded by comparatively fine cooling-water bores, which are acted upon by cooling water of high pressure and very low temperature. Since only a small amount of high pressure, low temperature cooling water needs to be provided, significant energy savings can be achieved.
  • a particularly practicable solution is given by the fact that a cooling device is provided in the calibration table, which provides water with particularly low temperatures for at least one cooling circuit. This makes it possible to remove the main part of the cooling water from a general supply device and to condition only a small part in the system itself, namely in the calibration table.
  • the calibration tank can be moved longitudinally on the calibration table. This allows a very simple adaptation of the extrusion line, if a different number of dry calibration is used.
  • Fig. 1 shows schematically an extrusion line according to the invention
  • Fig. 2 shows a detail of a calibration table includingkalibrierü in one
  • 3 shows a detail of an extrusion die
  • 4 shows an end view of a dry calibration unit
  • Fig. 5 is an end view of an extrusion die
  • FIG. 6 shows schematically a cooling device installed in the calibration table
  • Fig. 7 shows schematically the water flow in the calibration table and the Kalibrierwerkmaschineen.
  • the extrusion line of FIG. 1 consists of an extruder 1 with an extrusion die la, a calibration table 2 arranged downstream thereof, on which several dry calibration units 3 and several calibration tanks 4 (the calibration tools) are arranged to cool and feed the plastic profile 100 ejected from the extruder 1 calibrate.
  • the calibration tanks 4 are movable on the calibration table 2 in the longitudinal direction to allow rapid adaptation to a different number of dry calibration units 3, since it is desirable that the calibration tanks 4 connect directly to the dry calibration units 3.
  • the plastic profile 100 enters a caterpillar take-off 5 which provides the necessary tensile forces to pull the plastic profile 100 through the calibration tools.
  • a measuring station 6 the plastic profile 100 is measured and then separated in a saw 7 to profile sections 101, which are stored on a tilting table 8.
  • the extrusion line is controlled by a control unit 10, which is connected via control lines 11, 12 with the individual components of the extrusion line.
  • a scale 13 is indicated in the tilting table 8, which determines the weight of each professional labitess 101 and transmitted to the control unit 10.
  • the data about the profile geometry and the like are output from the measuring station 6 to the control unit 10. 15 indicates the nature of this data, namely geometric measurements, color, gloss and scratches.
  • all relevant data of the other components are transmitted in a manner not shown here, such as the withdrawal force applied by the caterpillar take-off 5, measured values of pressure and temperature from the calibration tools, and the like, and above all also identification data with which each tool is unique can be identified.
  • control unit 10 During operation of the extrusion line, the control unit 10 not only takes over data and issues control commands in order to control the extrusion process. In addition, appropriate records are made in a database in order to gain empirical values for subsequent extrusion processes.
  • FIG. 2 shows that the dry calibration units 3 a, 3 b can be set up in a simple manner on the calibration table 2, since only a mechanical connection via quick-release closures 16 has to be established. All connections are provided on the non-visible support surface on the underside of the dry calibration units 3a, 3b. They interact with connections which are likewise not visible here at the receiving positions of the calibration table 2. There are thus no hoses for connecting the calibration tools 3a, 3b, 4 with the calibration 2 required, which minimizes the risk of confusion or errors.
  • Fig. 3 shows a quick-change system for the extrusion die la, which can be folded away laterally.
  • an extremely short cycle time of less than 10 minutes can be achieved when changing the extrusion die la in conjunction with preheating the extrusion die la.
  • Fig. 4 the end face of a dry calibration unit 3 is shown, wherein laterally on both sides of the opening 19 through which the plastic profile 100 passes, which is a nozzle plate 18 a, 18 b is magnetically fixed.
  • nozzle plate 18 a, 18 b is magnetically fixed.
  • Several nozzles, not visible here, can be supplied with compressed air via connections 20 in order to selectively cool the plastic profile 100 entering the opening 19. The amount of air is measured to create reproducible conditions. In this way, the wall thickness of the outer regions of the plastic profile 100 can be adjusted individually, and it can the weight of the plastic profile produced with the (meter weight) are precisely controlled.
  • FIG. 4 A similar solution is shown in FIG.
  • nozzle plates 21a, 21b, 21c, 21d, 21e, 21f, 21g and 21h are also magnetically mounted on the end face of an extrusion die la.
  • the nozzle plates 21a and 21e are directed to viewing surfaces of the plastic profile 100, while the nozzle plates 21b, 21c, 21d, 21f and 21h are directed to extremities that always pose a challenge in the extrusion process.
  • FIG. 6 shows a cooling device arranged in the calibration table 2, which cools the general cooling water, which is made available to the extrusion line from the outside, to a lower temperature of, for example, 5 ° C. to 8 ° C. Via a feed line 24 and a return line 25, a distributor 23 is supplied, are fed via the special cooling circuits in the calibration tools.
  • Fig. 7 the general cooling water supply for thetkalibrierüen 3 a, 3 b is shown.
  • the manifold 23 is supplied via a supply line 29 with general cooling water.
  • low temperature water is supplied by the refrigerator 22 as shown above.
  • first supply line 26a with a small cross-section General cooling water is conducted at a first pressure level to specific circuits in the dry calibration units 3a, 3b. Cooling water of low temperature is led to further circuits via a second supply line 26b with a small cross-section. Via a third supply line 26c with a large cross-section, general cooling water is supplied at a further pressure level. Return lines 27, 28 return the used cooling water.

Landscapes

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

Abstract

L'invention concerne un procédé pour produire des profilés en matière plastique dans une ligne d'extrusion constituée de plusieurs moules. Selon ledit procédé, un matériau de départ est malaxé et façonné dans une extrudeuse (1), puis calibré dans au moins une unité de calibrage à sec (3 ; 3a, 3b) et au moins un réservoir de calibrage (4) est refroidi et calibré, puis subdivisé en parties individuelles (101) de profilé. Une amélioration de la qualité du profilé est obtenue par le fait qu'une unité de commande centrale (10), qui est reliée aux moules, reçoit de ceux-ci d'une part des données pour l'identification claire du moule et d'autre part des données concernant l'état du moule et renvoie des données de réglage pour ce dernier et d'autres moules.
EP17791540.2A 2016-10-19 2017-10-19 Procédé et dispositif pour produire des profilés en matière plastique Withdrawn EP3529036A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50946/2016A AT519283B1 (de) 2016-10-19 2016-10-19 Verfahren zur herstellung von kunststoffprofilen
PCT/AT2017/060272 WO2018071940A1 (fr) 2016-10-19 2017-10-19 Procédé et dispositif pour produire des profilés en matière plastique

Publications (1)

Publication Number Publication Date
EP3529036A1 true EP3529036A1 (fr) 2019-08-28

Family

ID=60191044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17791540.2A Withdrawn EP3529036A1 (fr) 2016-10-19 2017-10-19 Procédé et dispositif pour produire des profilés en matière plastique

Country Status (5)

Country Link
US (1) US20200055228A1 (fr)
EP (1) EP3529036A1 (fr)
CN (1) CN109843544A (fr)
AT (1) AT519283B1 (fr)
WO (1) WO2018071940A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017119334B4 (de) 2017-08-24 2022-01-20 Troester Gmbh & Co. Kg Verfahren zum Betrieb einer Extrusionsvorrichtung
AT523215A1 (de) * 2019-11-20 2021-06-15 Extrunet Gmbh Extrusionsdüse zur herstellung eines kunststoffprofils

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE2535286C3 (de) * 1975-08-07 1979-01-25 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zum Kalibrieren einer coextrudierten Profilleiste aus thermoplastischen Kunststoffen
US5340295A (en) * 1993-07-19 1994-08-23 The Conair Group, Inc. Vacuum sizing apparatus with controlled vacuum
ES2158628T3 (es) * 1998-02-27 2001-09-01 Kommerling Kunststoff Gmbh Dispositivo de calibrado.
EP1105278B1 (fr) * 1998-08-19 2003-02-19 Greiner Extrusionstechnik GmbH Procede de production d'objets longs en plastique
AT6407U1 (de) * 2002-12-12 2003-10-27 Technoplast Kunststofftechnik Verfahren zur regelung der vakuumversorgung von kalibrierwerkzeugen
AT7303U1 (de) * 2003-09-10 2005-01-25 Engel Austria Gmbh Spritzgiessmaschine
US7534378B2 (en) * 2004-03-03 2009-05-19 Rexam Prescription Products Inc. Plastic forming process monitoring and control
AT502105B1 (de) * 2004-12-10 2007-04-15 Gruber & Co Group Gmbh Vorrichtung zum kalibrieren eines extrudierten kunststoffprofils
WO2011110665A1 (fr) * 2010-03-11 2011-09-15 Politsch Kunststofftechnik Gmbh Dispositif pour le réglage précis de la sous-pression

Also Published As

Publication number Publication date
AT519283B1 (de) 2019-03-15
US20200055228A1 (en) 2020-02-20
CN109843544A (zh) 2019-06-04
AT519283A1 (de) 2018-05-15
WO2018071940A1 (fr) 2018-04-26

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