DE102010043876A1 - Multi-phase injection device for use in plastic injection molding machine, has dosing axles and injection axles that comprise liquid-refrigerated solenoid motor, where nominal and maximum forces are executed on stamping unit by motor - Google Patents
Multi-phase injection device for use in plastic injection molding machine, has dosing axles and injection axles that comprise liquid-refrigerated solenoid motor, where nominal and maximum forces are executed on stamping unit by motor Download PDFInfo
- Publication number
- DE102010043876A1 DE102010043876A1 DE201010043876 DE102010043876A DE102010043876A1 DE 102010043876 A1 DE102010043876 A1 DE 102010043876A1 DE 201010043876 DE201010043876 DE 201010043876 DE 102010043876 A DE102010043876 A DE 102010043876A DE 102010043876 A1 DE102010043876 A1 DE 102010043876A1
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- DE
- Germany
- Prior art keywords
- motor
- axles
- injection
- solenoid motor
- solenoid
- 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
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Classifications
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- 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
- B29C45/5008—Drive means therefor
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- 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
- B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
- B29C45/531—Drive means therefor
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- 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
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
- B29C2045/1792—Machine parts driven by an electric motor, e.g. electric servomotor
-
- 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
- B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
- B29C45/54—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft eine Mehrphaseneinspritzeinrichtung einer Spritzgießmaschine, wobei es sich z. B. um eine Kunststoffspritzgießmaschine handelt. Eine Two-Stage-Einspritzeinrichtung ist ein Beispiel für eine Mehrphaseneinspritzeinrichtung.The invention relates to a multiphase injector of an injection molding machine, wherein it is z. B. is a plastic injection molding machine. A two-stage injector is an example of a multiphase injector.
Single-Stage-Einspritzeinheiten weisen z. B. eine Motoreinheit aus einem Linearmotor und einem rotatorischen Motor (Kombinationsmotor) auf. Mit dieser Anordnung lassen sich gute Dynamik und Genauigkeiten in der Positionierung des Motors erreichen. Einen Schwachpunkt in dieser Anordnung stellt jedoch die notwendige Rückstromsperre am Schneckenende dar. Diese soll verhindern, dass beim Einspritzen das aufdosierte Material in die Schnecke zurück fließt. Verschiedene negative Einflüsse beim Einspritzen führen jedoch zu einem nicht 100% reproduzierbaren Prozess. Bei gleichem Einspritzweg werden unterschiedliche Volumina in das Werkzeug eingespritzt.Single-stage injection units have z. B. a motor unit of a linear motor and a rotary motor (combination motor) on. With this arrangement, good dynamics and accuracies in the positioning of the engine can be achieved. However, a weak point in this arrangement is the necessary backflow lock at the end of the screw. This is to prevent the metered material from flowing back into the screw during injection. However, various negative influences during injection lead to a not 100% reproducible process. With the same injection path different volumes are injected into the tool.
Bisher wurde versucht, das Problem steuerungstechnisch zu minimieren. Dies gelingt z. B. durch den Einsatz einer mechanisch verriegelbaren Rückstromsperre oder durch eine sogenannte ”Two-Stage-Maschine”. Damit kann das Problem umgangen werden. Hier wird durch das Trennen der beiden Bewegungen auf zwei verschiedenen Achsen das Problem zumindest verhindert. Eine Rückstromsperre entfällt hier, da diese durch einen Schneckenverschluss ersetzt ist. Hierzu wird auf die Schrift
Eine Aufgabe der Erfindung ist es, eine Mehrphaseneinspritzeinrichtung zu verbessern.An object of the invention is to improve a multiphase injector.
Die Aufgabe wird insbesondere bei einer Mehrphaseneinspritzeinrichtung gelöst, welche die Merkmale nach Anspruch 1 aufweist.The object is achieved in particular in a multiphase injection device, which has the features of claim 1.
Um die sehr gute Dynamik eines Linearmotors und die Prozesssicherheit der Two-Stage-Maschine zu kombinieren, wird für den Einspritzvorgang ein Soleniodmotor verwendet. Hierdurch kann der technische Prozess des Einspritzens verbessert werden. Es kann die hohe Dynamik des Solenoidmotors genutzt werden. Dies steht in Verbindung mit dem Wegfall der Nachteile einer Rückstromsperre. Mechanisch ergibt sich der Vorteil des einfacheren Aufbaus, z. B. durch Wegfall der Axialdrucklager.In order to combine the very good dynamics of a linear motor and the process reliability of the two-stage machine, a brine-type motor is used for the injection process. This can improve the technical process of injection. It can be used the high dynamics of the solenoid motor. This is in connection with the elimination of the disadvantages of a non-return valve. Mechanically, the advantage of the simpler structure, z. B. by omission of the thrust bearing.
Auch ein modulares System ist durch Einsatz von mehreren parallelen Solenoidmotoren möglich.A modular system is also possible by using several parallel solenoid motors.
Eine Mehrphaseneinspritzeinrichtung ist derart ausbildbar, dass diese eine Dosierachse und eine Einspritzachse aufweist. Die Mehrphaseneinspritzeinrichtung ist insbesondere ein Teil einer Spritzgießmaschine. Die Einspritzachse weist als Antrieb einen Solenoidmotor auf. Der Solenoidmotor ist kompakt aufbaubar, wobei es möglich ist trotz geringen Bauvolumens hohe Linearkräfte zu erzielen.A multiphase injector can be formed such that it has a metering axis and an injection axis. The multiphase injection device is in particular a part of an injection molding machine. The injection axis has as drive a solenoid motor. The solenoid motor is compact in structure, whereby it is possible to achieve high linear forces despite low volume.
In einer Ausgestaltung der Mehrphaseneinspritzeinrichtung ist mittels des Solenoidmotors eine Nennkraft zwischen 10 kN und > 100 kN auf einen Stempel ausübbar. Mit Hilfe des Stempels kann eine Spritzmasse durch eine Düse gedrückt werden. Mit Hilfe des Solenoidmotors ist eine gute Kraftregelung realisierbar, so dass der Druck während des Einspritzvorganges bzw. der Nachdruck gut geregelt werden kann. Die Nennkraft ist dabei die Kraft, welche der Motor mit Nennleistung ausüben kann.In one embodiment of the multiphase injector, a nominal force between 10 kN and> 100 kN can be exerted on a punch by means of the solenoid motor. With the help of the stamp, a spray mass can be pushed through a nozzle. With the help of the solenoid motor good force control can be realized, so that the pressure during the injection process or the reprint can be well controlled. The nominal force is the force that the motor can perform at nominal power.
In einer Ausgestaltung der Mehrphaseneinspritzeinrichtung wird mittels des Solenoidmotors eine Maximalkraft zwischen 80 kN und > 200 kN auf den Stempel ausgeübt. Die Maximalkraft kann mit einer Leistung des Motors ausgeübt werden, welche über der Nennleistung liegt.In one embodiment of the multiphase injector, a maximum force between 80 kN and> 200 kN is exerted on the ram by means of the solenoid motor. The maximum force can be applied with a power of the motor which is above the rated power.
In einer Ausgestaltung der Mehrphaseneinspritzeinrichtung ist der Solenoidmotor flüssigkeitsgekühlt. Durch die Flüssigkeitskühlung kann einfach und sehr effektiv Verlustwärme vom Solenoidmotor wegtransportiert werden. Mit Hilfe einer guten Kühlung, also der Kühlung mit einer Flüssigkeit, kann bei gleicher Baugröße die Nenn-Leistung des Motors erhöht werden.In one embodiment of the multiphase injector, the solenoid motor is liquid cooled. Due to the liquid cooling, heat loss from the solenoid motor can be easily and very effectively transported away. With the help of a good cooling, so the cooling with a liquid, the rated power of the engine can be increased with the same size.
In einer Ausgestaltung der Mehrphaseneinspritzeinrichtung ist der Stempel der Einspritzachse mit dem Solenoidmotor lagerfrei verbunden. Der Stempel der Einspritzachse ist also im Einspritzraum der Einspritzachse selbst gelagert, wobei sich zwischen dem linear bewegbaren Sekundärteil des Solenoidmotors und dem Stößel kein Lager mehr befindet. Sekundärteil und Stempel sind direkt und steif gekoppelt, wobei die Kopplung nicht zusätzlich gelagert ist.In one embodiment of the multiphase injector, the punch of the injection axis is connected to the solenoid motor in a bearing-free manner. The punch of the injection axis is thus mounted in the injection chamber of the injection axis itself, with no more bearings between the linearly movable secondary part of the solenoid motor and the plunger. Abutment and stamp are coupled directly and stiff, the coupling is not additionally stored.
Der Solenoidmotor wie er in der Mehrphaseneinspritzeinrichtung beschrieben ist, kann auch in einer Single-Stage-Einspritzeinrichtung bereitgestellt sein.The solenoid motor as described in the multiphase injector may also be provided in a single-stage injector.
Nachfolgend wird die Erfindung mittels Figuren beispielhaft näher beschrieben. Dabei zeigt:The invention will be described in more detail by way of example by way of example. Showing:
Die Darstellung gemäß
Die Darstellung gemäß
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- US 7140860 [0003] US 7140860 [0003]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010043876 DE102010043876A1 (en) | 2010-11-12 | 2010-11-12 | Multi-phase injection device for use in plastic injection molding machine, has dosing axles and injection axles that comprise liquid-refrigerated solenoid motor, where nominal and maximum forces are executed on stamping unit by motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE201010043876 DE102010043876A1 (en) | 2010-11-12 | 2010-11-12 | Multi-phase injection device for use in plastic injection molding machine, has dosing axles and injection axles that comprise liquid-refrigerated solenoid motor, where nominal and maximum forces are executed on stamping unit by motor |
Publications (1)
Publication Number | Publication Date |
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DE102010043876A1 true DE102010043876A1 (en) | 2012-05-16 |
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Family Applications (1)
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DE201010043876 Ceased DE102010043876A1 (en) | 2010-11-12 | 2010-11-12 | Multi-phase injection device for use in plastic injection molding machine, has dosing axles and injection axles that comprise liquid-refrigerated solenoid motor, where nominal and maximum forces are executed on stamping unit by motor |
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DE (1) | DE102010043876A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19920626A1 (en) * | 1999-05-05 | 2000-11-23 | Karl Hehl | Injection molding machine for processing plastics |
US7140860B2 (en) | 2003-12-24 | 2006-11-28 | Industrial Technology Research Institute | Two stage injection molding machine having pressure sensor device |
DE202005021060U1 (en) * | 2005-09-14 | 2007-01-18 | Siemens Ag | Injection molding machine, especially for injection stamping, comprises an injection unit with a linear drive unit, a closure unit with a linear drive unit, and a preplastication unit |
-
2010
- 2010-11-12 DE DE201010043876 patent/DE102010043876A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19920626A1 (en) * | 1999-05-05 | 2000-11-23 | Karl Hehl | Injection molding machine for processing plastics |
US7140860B2 (en) | 2003-12-24 | 2006-11-28 | Industrial Technology Research Institute | Two stage injection molding machine having pressure sensor device |
DE202005021060U1 (en) * | 2005-09-14 | 2007-01-18 | Siemens Ag | Injection molding machine, especially for injection stamping, comprises an injection unit with a linear drive unit, a closure unit with a linear drive unit, and a preplastication unit |
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R002 | Refusal decision in examination/registration proceedings | ||
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