DE3818599A1 - Plastics injection moulding machine - Google Patents

Plastics injection moulding machine

Info

Publication number
DE3818599A1
DE3818599A1 DE3818599A DE3818599A DE3818599A1 DE 3818599 A1 DE3818599 A1 DE 3818599A1 DE 3818599 A DE3818599 A DE 3818599A DE 3818599 A DE3818599 A DE 3818599A DE 3818599 A1 DE3818599 A1 DE 3818599A1
Authority
DE
Germany
Prior art keywords
injection molding
molding machine
plastic injection
machine according
cooling medium
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Withdrawn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
DE3818599A
Other languages
German (de)
Inventor
Rudolf Krebser
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.)
Netstal Maschinen AG
Original Assignee
Netstal Maschinen AG
Maschinenfabrik und Giesserei Netstal 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 Netstal Maschinen AG, Maschinenfabrik und Giesserei Netstal AG filed Critical Netstal Maschinen AG
Publication of DE3818599A1 publication Critical patent/DE3818599A1/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • 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
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/66—Mould opening, closing or clamping devices mechanical
    • B29C45/661—Mould opening, closing or clamping devices mechanical using a toggle mechanism for mould clamping
    • 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
    • B29C45/70—Means for plasticising or homogenising the moulding material or forcing it into the mould, combined with mould opening, closing or clamping devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K55/00—Dynamo-electric machines having windings operating at cryogenic temperatures
    • 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
    • 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
    • B29C2045/1793—Machine parts driven by an electric motor, e.g. electric servomotor by an electric linear motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The drive of the working elements (1a, 4, 5, 6, 11, 19) of the machine takes place by means of electrically superconducting magnetic devices (12). The conductors (12a) of these magnetic devices consist of an alloy of barium, copper, oxygen and lanthanum or yttrium, while liquid nitrogen is provided as the cooling medium for achieving the necessary transition temperature. As a result, the conversion of the electric energy required for driving into mechanical movement or force can take place virtually without any loss. <IMAGE>

Description

Gegenstand der vorliegenden Erfindung ist eine Kunststoff- Spritzgiessmaschine mit Werkzeugeinheit, Schliesseinheit, Spritzeinheit und verschiedenen Zusatzvorrichtungen.The present invention relates to a plastic Injection molding machine with tool unit, clamping unit, Injection unit and various additional devices.

Bei bekannten Maschinen dieser Art erfolgt der Antrieb aller oder wenigstens eines Teils der verschiedenen beweg­ baren bzw. druckausübenden Arbeitselemente dieser Einheiten bzw. Vorrichtungen durch Hydraulikvorrichtungen, die von einer durch einen Elektromotor angetriebenen Hydraulikpumpe gespeist werden. Es sind aber auch Spritzgiessmaschinen be­ kannt deren Arbeitselemente alle direkt durch Elektromotoren antreibbar sind. Von beiden Systemen gibt es verschiedene Varianten. Ihnen gemeinsam aber ist der Nachteil, dass die elektrische Energie in verlustreicher Weise in lineare oder rotierende mechanische Bewegung bzw. Kraft umgesetzt werden muss, sei dies nun in Elektromotoren oder mechanische Spin­ deln oder bei hydraulisch getriebenen Maschinen über eine motorgetriebene Pumpe und hydraulische Antriebselemente.In known machines of this type, the drive takes place all or at least part of the various motions ed or pressure-exerting work elements of these units or devices by hydraulic devices by a hydraulic pump driven by an electric motor be fed. But there are also injection molding machines knows their working elements all directly from electric motors are drivable. There are different types of both systems Variants. The disadvantage to you, however, is that the electrical energy in a lossy manner in linear or rotating mechanical movement or force are implemented must, be it in electric motors or mechanical spin or with hydraulically driven machines via a motor-driven pump and hydraulic drive elements.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde die zum Antrieb wenigstens eines Teils oder aller Arbeits­ elemente einer Kunststoff-Spritzgiessmaschine benötigte Energie durch besonders verlustarme Umsetzung drastisch zu senken. Erfindungsgemäss wird dies dadurch erreicht, dass wenigstens ein Teil der Arbeitselemente durch elektrisch supra-leitende Magnetvorrichtungen angetrieben wird, deren Leiter durch ein Kühlmedium unter die Sprungtemperatur abgekühlt wird.The present invention is therefore based on the object to power at least part or all of the work elements of a plastic injection molding machine Energy drastically increased through particularly low-loss implementation reduce. According to the invention this is achieved in that at least part of the working elements by electrical supra-conductive magnetic devices is driven, the Conduct through a cooling medium below the transition temperature is cooled.

Zweckmässig werden mindestens die linearbeweglichen Arbeits­ elemente wie die bewegbare Werkzeugaufspannplatte, der Aus­ stosser, die Kernzüge, der Anpresszylinder für das Spritz­ aggregat und die axial bewegbare Schnecke mit elektrisch supra-leitenden Magnetvorrichtungen angetrieben; aber auch zum Drehantrieb der Schnecke kann ein Elektromotor mit supra-leitendem Magnetsystem vorgesehen sein.At least the linearly movable work will be expedient elements such as the movable platen, the off  pushers, the core pulls, the pressure cylinder for the spray unit and the axially movable screw with electric driven superconducting magnetic devices; but also an electric motor can be used to drive the screw supra-conductive magnet system can be provided.

Die Leiterwicklung und Kern der supra-leitenden Magnet­ vorrichtung können in einem Gehäuse angeordnet sein, das von einem Kühlaggregat mit Kühlmedium gespeist wird; es ist aber auch möglich den Leiter der Magnetvorrichtung als Rohr auszubilden, das vom Kühlaggregat mit Kühlmedium gespeist wird. Dank dieser Ausbildung lässt sich die der Leiterwick­ lung zugeführte elektrische Energie praktisch ohne Verluste in mechanische Bewegung bzw. Kraft umsetzen.The conductor winding and core of the supra-conductive magnet device can be arranged in a housing that is supplied with cooling medium from a cooling unit; it is but also possible the conductor of the magnetic device as a tube form, which is fed with cooling medium from the cooling unit becomes. Thanks to this training, that of the leader wick electrical energy supplied practically without losses convert into mechanical movement or force.

In der Zeichnung ist die Erfindung beispielsweise darge­ stellt; darin zeigt:In the drawing, the invention is for example Darge poses; therein shows:

Fig. 1 schematisch den Axialschnitt einer Kunststoff- Spritzgiessmaschine nach der Erfindung, und Fig. 1 shows schematically the axial section of a plastic injection molding machine according to the invention, and

Fig. 2 und 3 in grösserem Massstab und im Axialschnitt je eine Ausführungsform der supra-leitenden Magnetvorrich­ tung gemäss Fig. 1. Figs. 2 and 3 in larger scale and in axial section an embodiment of each of the supra-conducting Magnetvorrich processing of FIG. 1.

Die in Fig. 1 dargestellte Spritzgiessmaschine besitzt eine Werkzeugeinheit 1, eine Schliesseinheit 2, eine Spritzein­ heit 3 und als Zusatzeinrichtungen eine Ausstossvorrichtung 4, eine Kernzugvorrichtung 5 und eine Anpressvorrichtung 6. Beim gezeichneten Beispiel besitzt die Schliesseinheit 2 ein einerseits an einer feststehenden Abstützplatte 7 und anderseits an der bewegbaren Formtragplatte 1 a der Werkzeug­ einheit 1 angreifendes Kniehebelwerk 2 a. Die bewegbare Form­ tragplatte 1 a ist auf Holmen 8 geführt, die einerends an der Abstützplatte 7 und andernends an der feststehenden Formtragplatte 1 b abgestützt sind. An den beiden Formtrag­ platten 1 a, 1 b der Werkzeugeinheit 1 sind die Formteile 9 a, 9 b abnehmbar befestigt. Die Spritzeinheit 3 besitzt eine im an die feststehende Formtragplatte 1 b anpressbaren Ein­ spritzzylinder 10 axial bewegbare und drehbare Schnecke 11.The injection molding machine shown in Fig. 1 has a tool unit 1 , a clamping unit 2 , a Spritzein unit 3 and an ejection device 4 , a core pulling device 5 and a pressing device 6 as additional devices. In the example shown, the locking unit 2 has on the one hand on a fixed support plate 7 and on the other hand on the movable mold support plate 1 a of the tool unit 1 attacking toggle mechanism 2 a . The movable mold support plate 1 a is guided on bars 8 , which are supported on one end on the support plate 7 and the other on the fixed mold support plate 1 b . On the two mold support plates 1 a , 1 b of the tool unit 1 , the molded parts 9 a , 9 b are removably attached. The injection unit 3 has a pressable in b to the stationary mold support plate 1 An injection cylinder 10 is axially movable and rotatable screw. 11

Beim gezeichneten Beispiel sind alle linear bewegbaren Arbeitselemente, d.h. die über das Kniehebelwerk 2 a beweg­ bare Formtragplatte 1 a, die Ausstossvorrichtung 4, die Kernzugvorrichtung 5, die Anpressvorrichtung 6 für den Zylinder 10 und die Schnecke 11 durch elektrisch supra­ leitende Magnetvorrichtungen 12 antreibbar. Sie besitzen ein die Leiterwicklung 12 a umschliessendes Gehäuse 12 b und einen Kern 12 c mit aus dem Gehäuse 12 b herausgeführter Verlängerung 12 d. Die Leiterwicklungen 12 a der Magnetvor­ richtungen 12 sind über elektrische Steuervorrichtungen 13, 14, 15, die ihrerseits an eine Hauptsteuervorrichtung 16 angeschlossen sind, mit der elektrischen Energiequelle 17 verbunden. Um die zur Erzielung der Supra-Leitung notwendige Sprungtemperatur zu erzielen muss die Leiterwicklung 12 a einerseits aus einer Speziallegierung bestehen und ander­ seits gekühlt werden. Eine solche Legierung besteht bei­ spielsweise aus Lanthan, Barium, Kupfer und Sauerstoff, wobei das Lanthan auch durch Yttrium ersetzt sein kann. Die Sprungtemperatur einer solchen Legierung liegt über 90 K, so­ dass als Kühlmedium flüssiger Stickstoff verwendet werden kann. Zur Kühlung der Leiterwicklung 12 a ist ein mit der Hauptsteuerung 16 verbundenes, mit flüssigem Stickstoff gespeistes Kühlaggregat 18 vorgesehen, das über Leitungen 20 mit den Magnetvorrichtungen 12 verbunden ist.When the example shown are all linearly movable work elements over the knee lever mechanism 2 a Move bare mold support plate 1 a, the ejection device 4, which Kernzugvorrichtung 5, the pressing device 6 for the cylinder 10 and the screw 11 that is, by electrically superconducting magnet apparatuses 12 can be driven. They have a housing 12 b enclosing the conductor winding 12 a and a core 12 c with an extension 12 d led out of the housing 12 b . The conductor windings 12 a of the Magnetvor devices 12 are connected via electrical control devices 13 , 14 , 15 , which in turn are connected to a main control device 16 , with the electrical energy source 17 . In order to achieve the transition temperature necessary to achieve the super conductor, the conductor winding 12 a must consist of a special alloy on the one hand and be cooled on the other hand. Such an alloy consists, for example, of lanthanum, barium, copper and oxygen, and the lanthanum can also be replaced by yttrium. The transition temperature of such an alloy is over 90 K, so that liquid nitrogen can be used as the cooling medium. To cool the conductor winding 12 a , a cooling unit 18 , which is connected to the main controller 16 and is supplied with liquid nitrogen, is provided, which is connected to the magnet devices 12 via lines 20 .

Bei der in den Fig. 1 und 2 gezeigten Ausführungsform der Magnetvorrichtungen 12 ist das druck- und flüssigkeits­ dichte Gehäuse 12 b jeder Magnetvorrichtung über Leitungen 20 an das Kühlaggregat 18 angeschlossen, während bei der in Fig. 3 gezeigten Ausführungsform der Leiter 112 a als das Kühlmedium führendes Rohr ausgebildet ist. Die als Kern­ verlängerung ausgebildete Abtriebstange 12 d der Magnetvor­ richtungen 12 ist gegenüber dem Kern 12 c zweckmässig iso­ liert, um den Wärmetransport zum Kern möglichst niedrig zu halten.In the embodiment of the magnet devices 12 shown in FIGS . 1 and 2, the pressure and liquid-tight housing 12 b of each magnet device is connected via lines 20 to the cooling unit 18 , while in the embodiment shown in FIG. 3 the conductor 112 a as that Coolant pipe is formed. The extension rod designed as a core extension 12 d of the Magnetvor devices 12 is expediently isolated against the core 12 c to keep the heat transfer to the core as low as possible.

Der dem Drehantrieb der Schnecke 11 dienende Elektromotor 19 ist beim gezeichneten Beispiel ebenfalls mit einem supra- leitenden Magnetsystem versehen und entsprechend ebenfalls an das Kühlaggregat 18 angeschlossen.The electric motor 19 which serves to drive the screw 11 is likewise provided with a superconducting magnet system in the example shown and is accordingly also connected to the cooling unit 18 .

Es versteht sich, dass die aus Wicklung und linear bewegba­ rem Tauchkern bestehenden Magnetvorrichtungen 12 auch durch supra-leitende Linear-Elektromotoren oder durch supra- leitende Rotations-Elektromotoren mit die Drehbewegung in eine Linearbewegung überführender Vorrichtung ersetzt sein können. In all diesen Fällen ist es möglich dank Supra- Leitfähigkeit die zum Antrieb der Arbeitselemente der Spritzgiessmaschine aufzuwendende elektrische Energie ohne wesentliche Verluste in mechanische Bewegung bzw. Kraft um­ zusetzen.It goes without saying that the magnetic devices 12 consisting of winding and linearly movable plunger core can also be replaced by superconducting linear electric motors or by superconducting rotary electric motors with the device converting the rotary movement into a linear movement. In all of these cases, thanks to super conductivity, it is possible to convert the electrical energy to drive the working elements of the injection molding machine into mechanical movement or force without significant losses.

Claims (8)

1. Kunststoff-Spritzgiessmaschine mit Werkzeugeinheit (1), Schliesseinheit (2), Spritzeinheit (3) und Zusatzvor­ richtungen (4, 5, 6), dadurch gekennzeichnet, dass wenig­ stens ein Teil der Arbeitselemente der Maschineneinhei­ ten (1, 2, 3) und Zusatzvorrichtungen (4, 5, 6) durch elektrisch supra-leitende Magnetvorrichtungen (12) angetrieben wird, deren Leiter (12 a) durch ein Kühlmedium unter die Sprungtemperatur abgekühlt wird.1. Plastic injection molding machine with tool unit ( 1 ), clamping unit ( 2 ), injection unit ( 3 ) and additional devices ( 4 , 5 , 6 ), characterized in that at least a part of the working elements of the machine units ( 1 , 2 , 3 ) and additional devices ( 4 , 5 , 6 ) are driven by electrically superconducting magnetic devices ( 12 ), the conductor ( 12 a ) of which is cooled below the transition temperature by a cooling medium. 2. Kunststoff-Spritzgiessmaschine nach Anspruch 1, dadurch gekennzeichnet, dass zur linearen Bewegung der bewegbaren Formtragplatte (1), der Ausstossvorrichtung (4), der Kernzugvorrichtung (5), der Anpressvorrichtung (6), des Spritzzylinders (10) und der Schnecke (11) elektrisch supra-leitende Magnetvorrichtungen (12) vorgesehen sind.2. Plastic injection molding machine according to claim 1, characterized in that for the linear movement of the movable mold support plate ( 1 ), the ejection device ( 4 ), the core pulling device ( 5 ), the pressing device ( 6 ), the injection cylinder ( 10 ) and the screw ( 11 ) electrically superconducting magnet devices ( 12 ) are provided. 3. Kunststoff-Spritzgiessmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zum Drehantrieb der Schnecke (11) der Spritzeinheit ein Elektromotor (19) mit supra- leitendem Magnetsystem vorgesehen ist.3. Plastic injection molding machine according to claim 1 or 2, characterized in that an electric motor ( 19 ) with a superconducting magnet system is provided for rotating the screw ( 11 ) of the injection unit. 4. Kunststoff-Spritzgiessmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zur linearen Bewegung der Arbeitselemente elektrisch supra-leitende Linear- Elektromotoren vorgesehen sind. 4. Plastic injection molding machine according to claim 1 or 2, characterized in that the linear movement of the Working elements electrically superconducting linear Electric motors are provided.   5. Kunststoff-Spritzgiessmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zur linearen Bewegung der Arbeitselemente elektrisch supra-leitende Rotations- Elektromotoren mit Vorrichtung zur Umwandlung der Rotationsbewegung in eine Linearbewegung vorgesehen sind.5. Plastic injection molding machine according to claim 1 or 2, characterized in that the linear movement of the Working elements electrically super-conductive rotating Electric motors with device for converting the Rotational movement in a linear movement are provided. 6. Kunststoff-Spritzgiessmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Wicklung (12 a) und Kern (12 c) enthaltende Gehäuse (12 b) der supra- leitenden Magnetvorrichtung (12) mit Kühlmedium beauf­ schlagt ist.6. Plastic injection molding machine according to one of claims 1 to 5, characterized in that the winding ( 12 a ) and core ( 12 c ) containing the housing ( 12 b ) of the superconducting magnet device ( 12 ) is subjected to cooling medium. 7. Kunststoff-Spritzgiessmaschine nach einem der Ansprüche 1-5, dadurch gekennzeichnet, dass der Leiter (112 a) der supra-leitenden Magnetvorrichtung (12) als das Kühlmedium führendes Rohr ausgebildet ist.7. Plastic injection molding machine according to one of claims 1-5, characterized in that the conductor ( 112 a ) of the superconducting magnetic device ( 12 ) is designed as a tube carrying the cooling medium. 8. Kunststoff-Spritzgiessmaschine nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Legierung der Leiter (12 a; 112 a) der Magnetvorrichtungen (12) aus Barium, Kupfer, Sauerstoff und Lanthan oder Yttrium be­ steht, während als Kühlmedium flüssiger Stickstoff vor­ gesehen ist.8. Plastic injection molding machine according to one of claims 1 to 7, characterized in that the alloy of the conductor ( 12 a ; 112 a ) of the magnetic devices ( 12 ) made of barium, copper, oxygen and lanthanum or yttrium be, while liquid as the cooling medium Nitrogen is seen before.
DE3818599A 1987-06-17 1988-06-01 Plastics injection moulding machine Withdrawn DE3818599A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2286/87A CH672610A5 (en) 1987-06-17 1987-06-17

Publications (1)

Publication Number Publication Date
DE3818599A1 true DE3818599A1 (en) 1988-12-29

Family

ID=4230223

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3818599A Withdrawn DE3818599A1 (en) 1987-06-17 1988-06-01 Plastics injection moulding machine

Country Status (6)

Country Link
JP (1) JPS6418618A (en)
CN (1) CN1030379A (en)
CH (1) CH672610A5 (en)
DE (1) DE3818599A1 (en)
FR (1) FR2616704A1 (en)
IT (1) IT1217853B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004002712A1 (en) * 2002-06-28 2004-01-08 Mannesmann Plastics Machinery Gmbh Closing unit for an injection molding machine
US6821105B1 (en) * 1999-11-23 2004-11-23 Mannesmann Plastics Machinery Gmbh Injection molding machine with a linear motor
EP3251821A1 (en) * 2016-06-03 2017-12-06 Airbus Operations GmbH Magnet press for pressing a component, in particular thermoplastic consolidation and/or forming press, and method for pressing such a component

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332027A (en) * 1963-12-16
FR1340193A (en) * 1962-05-25 1963-10-18 Sepi Process for obtaining pressures by superconductivity, in particular for presses or jacks
US3887312A (en) * 1971-06-28 1975-06-03 Eugene G Seary Injection molding apparatus
GB2132420A (en) * 1982-08-10 1984-07-04 Kershaw H A Electric motor or generator
JPS60216762A (en) * 1984-04-10 1985-10-30 Mitsubishi Heavy Ind Ltd Shaft generator plant
JPS61154823A (en) * 1984-12-28 1986-07-14 Sumitomo Heavy Ind Ltd Method of controlling clamping force of injection molding machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6821105B1 (en) * 1999-11-23 2004-11-23 Mannesmann Plastics Machinery Gmbh Injection molding machine with a linear motor
WO2004002712A1 (en) * 2002-06-28 2004-01-08 Mannesmann Plastics Machinery Gmbh Closing unit for an injection molding machine
EP3251821A1 (en) * 2016-06-03 2017-12-06 Airbus Operations GmbH Magnet press for pressing a component, in particular thermoplastic consolidation and/or forming press, and method for pressing such a component
US10518496B2 (en) 2016-06-03 2019-12-31 Airbus Operations Gmbh Press for pressing a thermoplastic composite component

Also Published As

Publication number Publication date
IT1217853B (en) 1990-03-30
CH672610A5 (en) 1989-12-15
FR2616704A1 (en) 1988-12-23
JPS6418618A (en) 1989-01-23
IT8821024A0 (en) 1988-06-17
CN1030379A (en) 1989-01-18

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