AT511496A3 - Method for metering plastic melt in a plasticizing and injection unit of an injection molding machine - Google Patents

Method for metering plastic melt in a plasticizing and injection unit of an injection molding machine Download PDF

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Publication number
AT511496A3
AT511496A3 AT501892012A AT501892012A AT511496A3 AT 511496 A3 AT511496 A3 AT 511496A3 AT 501892012 A AT501892012 A AT 501892012A AT 501892012 A AT501892012 A AT 501892012A AT 511496 A3 AT511496 A3 AT 511496A3
Authority
AT
Austria
Prior art keywords
plasticizing
injection
melt
injection screw
molding machine
Prior art date
Application number
AT501892012A
Other languages
German (de)
Other versions
AT511496A2 (en
Inventor
Klaus Brunbauer
Andreas Überall
Original Assignee
Wittmann Battenfeld 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.)
Filing date
Publication date
Application filed by Wittmann Battenfeld Gmbh filed Critical Wittmann Battenfeld Gmbh
Publication of AT511496A2 publication Critical patent/AT511496A2/en
Publication of AT511496A3 publication Critical patent/AT511496A3/en

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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/76006—Pressure
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/76083—Position
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76177—Location of measurement
    • B29C2945/7618—Injection unit
    • B29C2945/7619—Injection unit barrel
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76344—Phase or stage of measurement
    • B29C2945/76367—Metering
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76585—Dimensions, e.g. thickness
    • B29C2945/76591—Dimensions, e.g. thickness volume
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76929—Controlling method
    • B29C2945/76933—The operating conditions are corrected immediately, during the same phase or cycle
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76929—Controlling method
    • B29C2945/76939—Using stored or historical data sets
    • B29C2945/76943—Using stored or historical data sets compare with thresholds

Landscapes

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

Abstract

Die Erfindung betrifft ein V erfahren zum Dosieren von Kunststoffschmelze in einem Plastifizier- und Einspritzaggregat (1) einer Spritzgießmaschine, wobei es folgende Schritte umfasst: a) Dosieren einer ersten Schmelzemenge durch Drehen einer Plastifizier- und Einspritzschnecke (3) durch einen Drehantrieb ( 4) und translatorischem Bewegen der Plastifizier- und Einspritzschnecke (3) durch einen Verschiebeantrieb (5), wobei eine vorgegebene Schneckendrehzahl (n) mittels des Drehantriebs ( 4) und ein vorgegebener Staudruck (p) in der Schmelze durch den Verschiebeantrieb ( 5) gemäß einem vorgegebenen Profil gefahren werden; b) Bei Erreichen eines Umschaltpunkts (U) in Form einer definierten axialen Position der Plastifizier- und Einspritzschnecke (3): Dosieren emer zweiten Schmelzemenge durch Drehen der Plastifizier- und Einspritzschnecke (3) durch den Drehantrieb (4) und translatorischem Bewegen der Plastifizier- und Einspritzschnecke (3) durch den Verschiebeantrieb (5), wobei nunmehr eine gemäß einem vorgegebenen Profil definierte axiale Verschiebegeschwindigkeit (v) der Plastifizier- und Einspritzschnecke (3) mittels des Verschiebeantriebs ( 5) bis zu einer definierten Endposition (E) gefahren wird und wobei ein gemäß einem vorgegebenen Profil vorgegebener Staudruck (p) in der Schmelze durch den Drehantrieb ( 4) gefahren wird.The invention relates to a method for metering plastic melt in a plasticizing and injection unit (1) of an injection molding machine, comprising the following steps: a) metering a first quantity of melt by rotating a plasticizing and injection screw (3) by a rotary drive (4) and translational movement of the plasticizing and injection screw (3) by a displacement drive (5), wherein a predetermined screw speed (s) by means of the rotary drive (4) and a predetermined back pressure (p) in the melt by the displacement drive (5) according to a predetermined Profile to be driven; b) Upon reaching a switching point (U) in the form of a defined axial position of the plasticizing and injection screw (3): Dosing a second amount of melt by turning the plasticizing and injection screw (3) by the rotary drive (4) and translational movement of the plasticizing and injection screw (3) by the displacement drive (5), wherein now defined according to a predetermined profile axial displacement speed (v) of the plasticizing and injection screw (3) by means of the displacement drive (5) to a defined end position (E) is driven and wherein a predefined according to a predetermined profile back pressure (p) in the melt by the rotary drive (4) is driven.

AT501892012A 2011-05-19 2012-05-18 Method for metering plastic melt in a plasticizing and injection unit of an injection molding machine AT511496A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110101998 DE102011101998A1 (en) 2011-05-19 2011-05-19 Method for metering plastic melt volume in plasticizing- and injection device of injection molding machine, involves driving predetermined impact pressure in melt by rotary drive in accordance with predetermined profile

Publications (2)

Publication Number Publication Date
AT511496A2 AT511496A2 (en) 2012-12-15
AT511496A3 true AT511496A3 (en) 2015-02-15

Family

ID=47088116

Family Applications (1)

Application Number Title Priority Date Filing Date
AT501892012A AT511496A3 (en) 2011-05-19 2012-05-18 Method for metering plastic melt in a plasticizing and injection unit of an injection molding machine

Country Status (2)

Country Link
AT (1) AT511496A3 (en)
DE (1) DE102011101998A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060131772A1 (en) * 2004-12-20 2006-06-22 Toyo Machinery & Metal Co., Ltd. Method for controlling measurement in injection molding machine, and injection molding machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH555738A (en) * 1973-03-09 1974-11-15 Netstal Ag Maschf Giesserei PLASTIC INJECTION MOLDING MACHINE.
DE102005036198B4 (en) * 2005-08-02 2008-11-06 Adcuram Maschinenbauholding Gmbh Method for controlling the screw retraction speed
JP4231517B2 (en) * 2006-09-12 2009-03-04 日精樹脂工業株式会社 Measuring method for injection molding machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060131772A1 (en) * 2004-12-20 2006-06-22 Toyo Machinery & Metal Co., Ltd. Method for controlling measurement in injection molding machine, and injection molding machine

Also Published As

Publication number Publication date
DE102011101998A1 (en) 2012-11-22
AT511496A2 (en) 2012-12-15

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Effective date: 20160515