EP1516687A1 - Vakuum Druck- oder Spritzgiessmaschine - Google Patents
Vakuum Druck- oder Spritzgiessmaschine Download PDFInfo
- Publication number
- EP1516687A1 EP1516687A1 EP03019142A EP03019142A EP1516687A1 EP 1516687 A1 EP1516687 A1 EP 1516687A1 EP 03019142 A EP03019142 A EP 03019142A EP 03019142 A EP03019142 A EP 03019142A EP 1516687 A1 EP1516687 A1 EP 1516687A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- filling
- sensor
- pressure
- signal
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/32—Controlling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/14—Machines with evacuated die cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2069—Exerting after-pressure on the moulding material
Definitions
- the invention relates to a printing or injection molding machine with a pressure-exerting Organ, such as a casting piston in a filling box or the like. and one pressure-exerting member and / or a filling system for the stuffing box or the like.
- a pressure-exerting Organ such as a casting piston in a filling box or the like.
- controlling Control device as well as with a ventilation device, which is connected to the cavity of a Mold associated, and one of a connecting with a vacuum source Open position in a closed position has brought valve, with between the control device and the valve is a control connection.
- the pressure exerting Organ instead of of a casting piston, as used for die casting machines, the pressure exerting Organ also be formed by a vorschiebbaren extruder screw.
- Vacuum valves according to the prior art are often used by the control device for the G cashskolbenterrorism so delayed driven that they depend on the Close position of the casting piston in good time and thus a discharge of melt in prevent the valve.
- Examples of such controls can be found in U.S. Pat. patents No. 2,837,792; 2,904,861; 3,349,833; 4,463,793 or 4,577,670. It is clear that the Position of the casting piston gives only an approximate indication of where the Material front, i. in the case of a die casting machine, the metal, in the case of an injection molding machine the plastic is located. Because the actual situation of this material front will also depend on the degree of filling of the filling box or Dosiermengenschwankache.
- the invention is based on the object, such rapidly reacting sensors in one Machine of the type mentioned above to use so that a more efficient control yields, as by mere aggregation of machine and venting device would be achievable.
- a die casting machine 1 has a stationary platen in the usual way 2, to which a stationary mold half 3 is attached.
- This stationary mold half 3 limited together with a movable mold half 4, with a movable platen 6, a mold cavity 7.
- This mold cavity 7 may optionally be associated with an external reprinting device 8 (as opposed to a displaceable in the Grechse 9, internal Nachtik responded either from the casting piston 11 itself or from an acurad piston which can be displaced in it, i. a piston mounted in the casting piston and can be advanced therein) is formed known and indicated here only schematically.
- a stuffing box 9 is connected to a filling hole 10, in which a casting piston 11 via a force acting on its piston rod 12 hydraulic Drive 13 is displaceable, filled about the filling hole 10 in the filling box 9 Press metal into the mold cavity 7.
- the hydraulic drive 13 is of a Controlled control device 14, which optionally includes both electrical-electronic components and may include at least a portion of the hydraulics. She is in known Way with a position and / or speed and / or acceleration sensor 15 and other sensors, such as pressure transducers, connected via lines 16.
- the control device on the machine frame to attach a spray or diecasting machine, which would also be possible here.
- the output line 19 of the metal front sensor is 18 also connected to the Steuereinrichtuhg 14.
- FIG. 2 shows a velocity diagram (with the velocity in m / s relative to FIG the time in s) for the casting piston 11, as it is from the book "Modern Die Casting Production” by Ernst Brunnhuber, Verlag Schiele & Schön GmbH, Berlin, 1971, is known. Accordingly, there is initially a slow flow phase VI, in which the piston 11 straight is shifted over the filling hole 10, the low speed spouting out prevented by metal. Subsequently, the speed of the Giesskolbens 11 in a preliminary phase Vp, which lasts until the metal front of the Gutter 21 (Fig. 1) has reached what affects a first peak pressure. The on it The following mold filling happens extremely fast during a relatively short mold filling phase Ff in which the mold cavity 7 (Fig. 1) is filled with metal.
- the period from the beginning of the preliminary phase Vl to the end of the braking phase B is at Brunnhuber for example given with just over 2 s. This duration depends of course also on the degree to which the stuffing box 9 is ever filled with metal. To be able to monitor this value, there are already a variety of filling systems known. For example, JP-A-2001-18053 shows a system in which the Amount of metal is to some extent "pre-portioned by placing metal from one furnace into one Dosing is promoted, the volume limited at the top by a piston becomes. The position of this piston determines the amount of metal to be introduced into the metering chamber, before it is then filled into the underlying filling box.
- working rangefinder 22 e.g. a laser rangefinder or (less preferably) an ultrasonic range finder
- This rangefinder 22 measures the distance to the metal level N in the filling box 9. Of course, this distance varies with the level or the level N, so that it is a measure of the level. Since, as mentioned, the beginning of the hand of FIG. 2 phases Vl, Ff and B depend on this level, the level sensor or Rangefinder 22 connected via a line 24 to the controller to the curves Adjust according to FIG. 2 the measured level.
- the filling systems are designed very differently and optionally may have a dosing. If one goes about from the Construction according to JP-A-2001-18053, in which a displaceable piston is the metering level determined, so could be a correction using the output signal of Realize sensor 18, for example via a controlled servo drive, the changed the position of this metering piston accordingly. In short, in the case of one Filling system with metering device, the dosage-determining device of Output signal of the valve 17 associated sensor 18 are changed.
- the valve 17 is substantially similar to that of US-A-3,349,833, but is of a Controlled magnet 27, which insert a shutter slide 29 in the line 20 can to the valve 17 from the illustrated open position to the closed position bring. Alternatively, however, the magnet 27 can be removed, and the actuation takes place pneumatically or hydraulically, i. fluidly, via a piston 31. When used a magnet 27 remain the associated fluid lines (only one line 32 is shown) open to cause no resistance when moving the piston 31.
- Fig. 4 again shows the two mold halves 3, 4, which form a mold cavity 7.
- valve 17 with the supplied from the controller 14 vacuum line 20 and the (to the control device 14 going) output line 19 of the sensor 18th Shortly before the sprue 21 but still another vacuum valve 17 'is provided.
- This Valve 17 ' is controlled by a metal front sensor 18', which in the known manner to Control of the movement of the casting piston 11 is used, such as DE-A-36 35 845 to can be found.
- the output signal of this sensor 18 'in general to Switching the control of the Vorhubphase Vp (see Fig. 2) on the filling phase serve.
- the sensor 18 ' is also the vacuum valve 17 'and supplies its output signal via an output line 19' to this, to close it in time.
- a sensor associated with a vacuum valve controls the pressure-exerting Organs an injection molding or die casting machine influenced.
- a sensor associated with a vacuum valve controls the pressure-exerting Organs an injection molding or die casting machine influenced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
- Fig. 1
- eine Seitenansicht einer erfindungsgemäss ausgebildeten Druckgiessmaschine;
- Fig. 2
- ein Diagramm zur Erläuterung der Steuerung nach einem ersten Ausführungsbeispiel;
- Fig. 3
- einen Schnitt durch Füllbüchse und stationäre Formhälfte zur Erläuterung der Erfindung im Zusammenhang mit einem Füll-Überwachungssystem; und
- Fig. 4
- eine Ausführungsform mit mehrfacher Absaugung.
Claims (6)
- Druck- oder Spritzgiessmaschine mit einem druckausübenden Organ, wie einem Giesskolben (11) in einer Füllbüchse od.dgl. (9) und einer ein druckausübendes Organ und/oder ein Füllsystem für die Füllbüchse od.dgl. (9) steuernden Steuereinrichtung (14), sowie mit einer Entlüftungsvorrichtung, die ein mit dem Hohlraum einer Giessform in Verbindung stehendes, und ein aus einer mit einer Vakuumquelle (in 14) verbindenden Offenstellung in eine Geschlossenstellung bringbares Ventil (17) aufweist, wobei zwischen der Steuereinrichtung (14) und dem Ventil (17; 17'; 17") eine Steuerverbindung (19, 20) besteht, dadurch gekennzeichnet, dassa) die genannten Stellungen des Ventils (17; 17'; 17") über einen ihm zugeordneten und in seinem Bereich angeordneten Materialsensor (18; 18') steuerbar sind, welcher über eine Ausgangsleitung (19) ein Schliesssignal an das Ventil (17; 17'; 17") abgibt, und dassb) die Ausgangsleitung (19) auch mit der Steuereinrichtung (14) zur Beeinflussung wenigstens eines der von ihr gesteuerten Teile (11; 22, 24, 14) verbunden ist.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass mindestens ein Teil der gemeinsamen Steuerung in einem gemeinsamen Schaltgehäuse (14) untergebracht ist.
- Maschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Steuereinrichtung (14) zur Steuerung der Abbremsung (B) des druckausübenden Organs (11) am Ende seines Hubes ausgebildet ist, und dass die Abbremsung durch das Signal des dem Vakuumventil (17) zugeordneten Materialsensors (18) steuerbar ist.
- Maschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Füllsystem eine den Füllgrad der Füllbüchse od.dgl. (9) bestimmende Einrichtung (22) aufweist, und dass dieser Füllgrad durch das Signal des dem Vakuumventil (17) zugeordneten Materialsensors (18) einstellbar ist.
- Maschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens ein Ventil (17', 17") der Entlüftungseinrichtung von einem vor dem Formanschnitt (21) gelegenen Sensor (18') gesteuert ist, und dass über das Ausgangssignal dieses Sensors (18') die Füllphase (Ff) für das druckausübende Organ (11) auslösbar ist.
- Maschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Nachdruckeinrichtung (8) vorgesehen ist, und dass diese Nachdruckeinrichtung (8) durch das Signal des dem Vakuumventil (17) zugeordneten Materialsensors (18) auslösbar ist, wobei für den Nachdruck gegebenenfalls ein vom druckausübenden Organ (11) für die Formfüllung gesonderter Kolben (8") durch dieses Signal steuerbar ist.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES03019142T ES2333705T3 (es) | 2003-08-25 | 2003-08-25 | Procedimiento de vacio para el moldeo por inyeccion o presion. |
EP03019142A EP1516687B1 (de) | 2003-08-25 | 2003-08-25 | Verfahren zum Vakuum Druck- oder Spritzgiessen |
DE50312004T DE50312004D1 (de) | 2003-08-25 | 2003-08-25 | Verfahren zum Vakuum Druck- oder Spritzgiessen |
AT03019142T ATE444822T1 (de) | 2003-08-25 | 2003-08-25 | Verfahren zum vakuum druck- oder spritzgiessen |
US10/915,833 US6997237B2 (en) | 2003-08-25 | 2004-08-11 | Die-casting or injection molding machine |
JP2004240409A JP2005066696A (ja) | 2003-08-25 | 2004-08-20 | ダイカスト機或いは射出成形機 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03019142A EP1516687B1 (de) | 2003-08-25 | 2003-08-25 | Verfahren zum Vakuum Druck- oder Spritzgiessen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1516687A1 true EP1516687A1 (de) | 2005-03-23 |
EP1516687B1 EP1516687B1 (de) | 2009-10-07 |
Family
ID=34178393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03019142A Expired - Lifetime EP1516687B1 (de) | 2003-08-25 | 2003-08-25 | Verfahren zum Vakuum Druck- oder Spritzgiessen |
Country Status (6)
Country | Link |
---|---|
US (1) | US6997237B2 (de) |
EP (1) | EP1516687B1 (de) |
JP (1) | JP2005066696A (de) |
AT (1) | ATE444822T1 (de) |
DE (1) | DE50312004D1 (de) |
ES (1) | ES2333705T3 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102303109A (zh) * | 2011-08-31 | 2012-01-04 | 重庆溢希恩真节能电力设备有限公司 | 压铸机脱模剂自动配比节能器 |
ITMI20101606A1 (it) * | 2010-09-06 | 2012-03-07 | Maicopresse Spa | Dispositivo perfezionato per il riempimento di metallo fuso in camere di pressatura nelle macchine di pressofusione |
DE102013018870A1 (de) | 2013-11-12 | 2015-05-13 | Kraussmaffei Technologies Gmbh | Vorrichtung zum Herstellen eines Formteils in einem Formwerkzeug einer Maschine zur Herstellung von Kunststoff-Formteilen |
WO2018082939A3 (de) * | 2016-11-04 | 2018-08-16 | Magna BDW technologies GmbH | Vorrichtung, steuerung und filtermodul zur herstellung von druckgussteilen, sowie verfahren dazu |
CN110475632A (zh) * | 2017-03-31 | 2019-11-19 | 东洋机械金属株式会社 | 压铸机 |
DE102016221674B4 (de) | 2016-11-04 | 2020-06-18 | Magna BDW technologies GmbH | Steuerung für eine Vorrichtung zur Herstellung von Druckgussteilen |
DE102016221678B4 (de) * | 2016-11-04 | 2020-07-16 | Magna BDW technologies GmbH | Vorrichtung zur Herstellung von Druckgussteilen |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2348901B1 (es) * | 2010-07-09 | 2011-10-14 | Comercial De Utiles Y Moldes S.A. | Dispositivo para la succión de aire en cavidades de moldes de inyección y la posterior expulsión de las piezas moldeadas en dichas cavidades. |
EP2652183B1 (de) * | 2010-12-17 | 2018-07-04 | Cleveland State University | Verfahren zur herstellung von nanostrukturierter ultraleitfähiger nanokomposit-kupferdraht |
JP5787582B2 (ja) * | 2011-04-12 | 2015-09-30 | 助川電気工業株式会社 | ダイキャストスリーブへの溶融金属充填装置 |
CN103100682B (zh) * | 2013-01-29 | 2015-07-29 | 广州有色金属研究院 | 一种真空压铸系统及其排气方法 |
DE102014003491A1 (de) * | 2014-03-14 | 2015-03-05 | Autoliv Development Ab | Formwerkzeug und Verfahren zum Herstellen eines Werkstückes |
CN105689679A (zh) * | 2016-05-04 | 2016-06-22 | 珠海嵘泰有色金属铸造有限公司 | 压铸系统及压铸方法 |
CN106735075B (zh) * | 2016-12-30 | 2019-01-15 | 宁波海天金属成型设备有限公司 | 一种压铸机智能开合模控制方法及控制系统 |
CN109909472B (zh) * | 2019-04-17 | 2020-01-10 | 燕山大学 | 利用磁力传递动力的真空压铸机 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2818442A1 (de) * | 1978-04-27 | 1979-10-31 | Dieter Dr Ing Leibfried | Niederdruckgiessverfahren fuer metalle, insbesondere ne-metalle |
US4852634A (en) * | 1987-10-12 | 1989-08-01 | Ryobi Ltd. | Gas venting arrangement in injection molding apparatus and method for venting gas in the injection molding apparatus |
DE4216773A1 (de) * | 1992-05-21 | 1993-11-25 | Kurt Loeffler Druckgus Gmbh & | Druckgußvorrichtung |
DE19508867A1 (de) * | 1994-06-01 | 1995-12-07 | Buehler Ag | Druckgießmaschine |
EP0937524A1 (de) * | 1998-02-19 | 1999-08-25 | Fondarex S.A. | Verfahren zum Entlüften von Druckgiessformen sowie Ventilvorrichtung zur Durchführung des Verfahrens |
JP2003001396A (ja) * | 2001-06-18 | 2003-01-07 | Aisin Seiki Co Ltd | ダイカスト金型のガス抜き装置 |
EP1295655A1 (de) * | 2001-09-21 | 2003-03-26 | Fondarex S.A. | Entlüftungsventileinrichtung für Giessformen |
DE10144945A1 (de) * | 2001-09-12 | 2003-04-10 | Alcan Bdw Gmbh & Co Kg | Verfahren zum Steuern eines Vakuumventils einer Vakuumdruckgießvorrichtung sowie Vakuumdruckgießvorrichtung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986338A (en) * | 1988-05-16 | 1991-01-22 | Ryobi Ltd. | Gas venting arrangement in high speed injection molding apparatus and method for venting gas in the high speed injection molding apparatus |
JP2676293B2 (ja) * | 1992-03-13 | 1997-11-12 | リョービ株式会社 | 層流射出成形機及び層流射出成形方法 |
US5983978A (en) * | 1997-09-30 | 1999-11-16 | Thixomat, Inc. | Thermal shock resistant apparatus for molding thixotropic materials |
-
2003
- 2003-08-25 EP EP03019142A patent/EP1516687B1/de not_active Expired - Lifetime
- 2003-08-25 AT AT03019142T patent/ATE444822T1/de active
- 2003-08-25 DE DE50312004T patent/DE50312004D1/de not_active Expired - Lifetime
- 2003-08-25 ES ES03019142T patent/ES2333705T3/es not_active Expired - Lifetime
-
2004
- 2004-08-11 US US10/915,833 patent/US6997237B2/en not_active Expired - Fee Related
- 2004-08-20 JP JP2004240409A patent/JP2005066696A/ja active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2818442A1 (de) * | 1978-04-27 | 1979-10-31 | Dieter Dr Ing Leibfried | Niederdruckgiessverfahren fuer metalle, insbesondere ne-metalle |
US4852634A (en) * | 1987-10-12 | 1989-08-01 | Ryobi Ltd. | Gas venting arrangement in injection molding apparatus and method for venting gas in the injection molding apparatus |
DE4216773A1 (de) * | 1992-05-21 | 1993-11-25 | Kurt Loeffler Druckgus Gmbh & | Druckgußvorrichtung |
DE19508867A1 (de) * | 1994-06-01 | 1995-12-07 | Buehler Ag | Druckgießmaschine |
EP0937524A1 (de) * | 1998-02-19 | 1999-08-25 | Fondarex S.A. | Verfahren zum Entlüften von Druckgiessformen sowie Ventilvorrichtung zur Durchführung des Verfahrens |
JP2003001396A (ja) * | 2001-06-18 | 2003-01-07 | Aisin Seiki Co Ltd | ダイカスト金型のガス抜き装置 |
DE10144945A1 (de) * | 2001-09-12 | 2003-04-10 | Alcan Bdw Gmbh & Co Kg | Verfahren zum Steuern eines Vakuumventils einer Vakuumdruckgießvorrichtung sowie Vakuumdruckgießvorrichtung |
EP1295655A1 (de) * | 2001-09-21 | 2003-03-26 | Fondarex S.A. | Entlüftungsventileinrichtung für Giessformen |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 05 12 May 2003 (2003-05-12) * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20101606A1 (it) * | 2010-09-06 | 2012-03-07 | Maicopresse Spa | Dispositivo perfezionato per il riempimento di metallo fuso in camere di pressatura nelle macchine di pressofusione |
EP2425913A1 (de) * | 2010-09-06 | 2012-03-07 | Marconi S.r.l. Forni e Macchine Industriali | Verbesserte Vorrichtung zum Einfüllen von Metallschmelze in die Formen von Druckgussmaschinen |
CN102303109A (zh) * | 2011-08-31 | 2012-01-04 | 重庆溢希恩真节能电力设备有限公司 | 压铸机脱模剂自动配比节能器 |
DE102013018870A1 (de) | 2013-11-12 | 2015-05-13 | Kraussmaffei Technologies Gmbh | Vorrichtung zum Herstellen eines Formteils in einem Formwerkzeug einer Maschine zur Herstellung von Kunststoff-Formteilen |
WO2018082939A3 (de) * | 2016-11-04 | 2018-08-16 | Magna BDW technologies GmbH | Vorrichtung, steuerung und filtermodul zur herstellung von druckgussteilen, sowie verfahren dazu |
DE102016221674B4 (de) | 2016-11-04 | 2020-06-18 | Magna BDW technologies GmbH | Steuerung für eine Vorrichtung zur Herstellung von Druckgussteilen |
DE102016221678B4 (de) * | 2016-11-04 | 2020-07-16 | Magna BDW technologies GmbH | Vorrichtung zur Herstellung von Druckgussteilen |
US10994329B2 (en) | 2016-11-04 | 2021-05-04 | Magna BDW technologies GmbH | Device, control system and filter module for producing die-cast parts, and method therefor |
US10994330B2 (en) | 2016-11-04 | 2021-05-04 | Magna BDW technologies GmbH | Device, control system and filter module for producing die-cast parts, and method therefor |
CN110475632A (zh) * | 2017-03-31 | 2019-11-19 | 东洋机械金属株式会社 | 压铸机 |
Also Published As
Publication number | Publication date |
---|---|
US20050115693A1 (en) | 2005-06-02 |
JP2005066696A (ja) | 2005-03-17 |
ES2333705T3 (es) | 2010-02-26 |
DE50312004D1 (de) | 2009-11-19 |
ATE444822T1 (de) | 2009-10-15 |
EP1516687B1 (de) | 2009-10-07 |
US6997237B2 (en) | 2006-02-14 |
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EP3928889A1 (de) | Druckgiessmaschine und betriebsverfahren |
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