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EP2018236B1 - Process and mold device for producing cast parts - Google Patents

Process and mold device for producing cast parts Download PDF

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Publication number
EP2018236B1
EP2018236B1 EP06804832A EP06804832A EP2018236B1 EP 2018236 B1 EP2018236 B1 EP 2018236B1 EP 06804832 A EP06804832 A EP 06804832A EP 06804832 A EP06804832 A EP 06804832A EP 2018236 B1 EP2018236 B1 EP 2018236B1
Authority
EP
European Patent Office
Prior art keywords
movable
insert
mold
chucking plate
mould half
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.)
Not-in-force
Application number
EP06804832A
Other languages
German (de)
French (fr)
Other versions
EP2018236A1 (en
Inventor
Siegfried Heinrich
Sascha Padovan
Ulrich Binder
Benno Niedermann
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.)
Buehler Druckguss AG
Original Assignee
Buehler Druckguss 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
Priority claimed from DE102006022291A external-priority patent/DE102006022291A1/en
Application filed by Buehler Druckguss AG filed Critical Buehler Druckguss AG
Priority to PL06804832T priority Critical patent/PL2018236T3/en
Publication of EP2018236A1 publication Critical patent/EP2018236A1/en
Application granted granted Critical
Publication of EP2018236B1 publication Critical patent/EP2018236B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/22Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/22Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/24Accessories for locating and holding cores or inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/26Mechanisms or devices for locking or opening dies

Definitions

  • the invention relates to a molding device for the production of castings, in particular of complex shaped castings such as engine blocks with cylinders arranged in series, for example 2 to 8 cylinders.
  • the molding device is particularly applicable in die casting machines.
  • the U.S. Patent 5,865,241 discloses a die casting machine for making V-motor blocks in a solid and movable mold-half mold.
  • the movable mold half comprises, in addition to the mold cavity, a column-guided ejector block.
  • the cylinder extends beyond the form-facing side of the clamping plate.
  • the Auswerferbox is a massive plate which receives a part of the former cylinder and which is trapezoidal in cross-section.
  • a double-acting ejector cylinder with inserts for the engine cylinders is also arranged, whose imaginary extended axes intersect in the mold cavity. Due to the attachment of these cylinders on the slopes, horizontal and vertical force components on the ejection box become effective during ejection.
  • a similar mold and die casting machine describes the WO 2004/033131 in which two further hydraulic cylinders are provided for moving the movable mold half are. This cylinder arrangement also protrudes clearly beyond the form-facing side of the movable mold half.
  • the shapes described are structurally complex and large and therefore it is very large masses in the die casting machine to move.
  • the invention is therefore based on the object to provide a method and a molding device for the production of engine blocks of in-line cylinder engines, which allows a change of specific operations such as water jacket inserts with less expenditure of time.
  • the object is solved with the features of the claims.
  • the water jacket insert (with sleeves) is designed as a slide, which is detachably connected to the machine ejector.
  • the invention is based on the knowledge known per se that a longer service life of a water jacket insert can only be achieved if it is less in contact with the cooling melt, resulting in lower repair costs.
  • a vertically arranged forming device in a die casting machine includes a fixed platen 1 with a fixed mold half 2 and a movable platen 5 with a movable mold half 4.
  • the movable mold half 4 has a recess 3 for the stroke of a movable contour insert 11.
  • An ejection unit 7 of the die casting machine has connecting rods 8 to the movable mold half 4 and locking bolt 10 between the movable mold half 4 and movable platen 5.
  • On the movable platen 5 cylinders 9 of a hydraulic quick clamping system of the mold are arranged.
  • connection 6 is provided between movable contour insert 11 and ejector unit 7.
  • the water jacket insert (contour insert 11) with sleeves is designed as a slide and firmly connected to the ejector unit 7.
  • the slider is guided with four connecting rods 8 (guide columns) in the machine plate (movable platen 5).
  • a hardened plate is provided as a slide support.
  • the unlocking of the quick-release system 9 of the mold is extended, the movable platen 4 is about 10 cm moved / open and the ejector unit 7 before
  • the contour insert 11 extends with quills and after a second solidification time, the mold is opened. Unspecified upper and lower slide open and a not shown removal device can retract and grip the casting. Thereafter, the lateral slide not shown open and the removal device can remove the casting.
  • the contour insert 11 water jacket insert
  • the mold is sprayed in a conventional manner, the ejector unit 7 moves forward, the cylinder liners are inserted. The mold is closed, the release of the quick-release system 9 is retracted and the next shot can be made.
  • the movable contour insert 11 itself can also be removed and changed.
  • the unlocking of the quick release system 9 of the mold is first extended and then the ejector 7 before driven so that the movable platen 5 can ascend when the mold is closed. Then the whole slide can be removed and a new contour insert 11 installed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

A mold device produces cast parts, in particular cast parts of complex shape, such as engine blocks, for example with 2 to 8 cylinders arranged in a row, wherein the mold device can be used, in particular, in die casting machines. The mold device has both a movable clamping plate and a permanently fixed clamping plate with movable or permanently fixed mold halves arranged thereon, wherein a water jacket insert or contour insert is placed in the movable mold halves, and the contour insert (11) is movable linearly.

Description

Die Erfindung betrifft eine Formeinrichtung zur Herstellung von Gussteilen, insbesondere von komplex geformten Gussteilen wie zum Beispiel Motorblöcke mit in Reihe angeordneten Zylinder, zum Beispiel 2 bis 8 Zylinder. Die Formeinrichtung ist insbesondere in Druckgiessmaschinen anwendbar.The invention relates to a molding device for the production of castings, in particular of complex shaped castings such as engine blocks with cylinders arranged in series, for example 2 to 8 cylinders. The molding device is particularly applicable in die casting machines.

Das US-PS 5865241 offenbart eine Druckgiessmaschine zur Herstellung von V-Motorblöcken in einer Form mit fester und beweglicher Formhälfte. Die bewegliche Formhälfte umfasst neben dem Formhohlraum einen säulengeführten Auswerferblock. Auf einer Spannplatte ist eine Auswerferbox angeordnet, die mittels eines doppeltwirkenden Zylinders von dieser abhebbar ist. Der Zylinder reicht über die formabgewandte Seite der Spannplatte hinaus.The U.S. Patent 5,865,241 discloses a die casting machine for making V-motor blocks in a solid and movable mold-half mold. The movable mold half comprises, in addition to the mold cavity, a column-guided ejector block. On a clamping plate an ejector box is arranged, which can be lifted by means of a double-acting cylinder of this. The cylinder extends beyond the form-facing side of the clamping plate.

Senkrecht zu diesem Zylinder sind auf Höhe des Formhohlraumes beidseitig weitere Zylinder angeordnet, die dem ein- und ausfahren von Schiebern dienen.Perpendicular to this cylinder at the level of the mold cavity on both sides more cylinders are arranged, which serve the retraction and extension of sliders.

Die Auswerferbox ist eine massive Platte, die einen Teil des erstgenannten Zylinders aufnimmt und die im Querschnitt trapezförmig ausgebildet ist. Auf den schrägen Seitenwänden, die winkelgleich zur V-Stellung des Motorblockes sind, ist ebenfalls je ein doppeltwirkender Auswerferzylinder mit Einsätzen für die Motorzylinder angeordnet, deren gedanklich verlängerte Achsen sich im Formhohlraum kreuzen. Aufgrund der Befestigung dieser Zylinder auf den Schrägen werden beim Auswerfen horizontale und vertikale Kraftkomponenten auf die Auswerferbox wirksam.The Auswerferbox is a massive plate which receives a part of the former cylinder and which is trapezoidal in cross-section. On the oblique side walls, which are identical in angle to the V-position of the engine block, a double-acting ejector cylinder with inserts for the engine cylinders is also arranged, whose imaginary extended axes intersect in the mold cavity. Due to the attachment of these cylinders on the slopes, horizontal and vertical force components on the ejection box become effective during ejection.

Zum öffnen und schliessen der Form sind weitere Zylinder erforderlich.To open and close the mold more cylinders are required.

Eine ähnliche Form und Druckgiessmaschine beschreibt die WO 2004/033131 , bei der zwei weitere Hydraulikzylinder zum verfahren der beweglichen Formhälfte vorgesehen sind. Auch diese Zylinderanordnung ragt deutlich über die formabgewandte Seite der beweglichen Formhälfte hinaus.A similar mold and die casting machine describes the WO 2004/033131 in which two further hydraulic cylinders are provided for moving the movable mold half are. This cylinder arrangement also protrudes clearly beyond the form-facing side of the movable mold half.

Die beschriebenen Formen sind konstruktiv aufwändig und gross und es sind daher sehr grosse Massen in der Druckgiessmaschine zu bewegen.The shapes described are structurally complex and large and therefore it is very large masses in the die casting machine to move.

Formen zum Giessen von Motorblöcken von Reihenzylindermotoren bekannt, die mit einem Kühlmanteleinsatz versehen sind um dünnwandige, innenliegende Bereiche schnell abzukühlen. Dabei ist der Wassermantel bzw. dessen Einsatz der Schmelze zu lange ausgesetzt, so dass deren Standzeit gering bzw. unregelmässig ist und sie bereits nach 5000 bis 15000 Schuss ausgetauscht werden müssen, was zeit- und kostenaufwändig ist.Forms for casting engine blocks of in-line cylinder engines known, which are provided with a cooling jacket insert to cool thin-walled, interior areas quickly. The water jacket or its use of the melt is exposed too long, so that their life is low or irregular and they need to be replaced after 5000 to 15,000 shots, which is time consuming and costly.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Formeinrichtung zur Herstellung von Motorblöcken von Reihenzylindermotoren zu schaffen, die einen Wechsel von spezifischen Einsätzen wie zum Beispiel Wassermanteleinsätze mit geringerem Zeitaufwand ermöglicht.The invention is therefore based on the object to provide a method and a molding device for the production of engine blocks of in-line cylinder engines, which allows a change of specific operations such as water jacket inserts with less expenditure of time.

Die Aufgabe ist mit den Merkmalen der Patentansprüche gelöst. Der Wassermanteleinsatz (mit Pinolen) ist als Schieber ausgeführt, der mit dem Maschinenauswerfer lösbar verbunden ist.The object is solved with the features of the claims. The water jacket insert (with sleeves) is designed as a slide, which is detachably connected to the machine ejector.

Der Erfindung liegt die an sich bekannte Erkenntnis zugrunde, dass eine höhere Lebensdauer eines Wassermanteleinsatzes nur erreicht werden kann, wenn dieser weniger lang in Kontakt mit der abkühlenden Schmelze steht, was zu geringeren Reparaturkosten führt.The invention is based on the knowledge known per se that a longer service life of a water jacket insert can only be achieved if it is less in contact with the cooling melt, resulting in lower repair costs.

Dies kann durch einfacheres Werkzeugdesign und geringere Ausfahrzeiten erreicht werden, was zugleich kürzere Zykluszeiten und eine höhere Produktivität bewirken kann.This can be achieved through simpler tool design and lower deployment times, which can result in shorter cycle times and higher productivity.

Die Erfindung wird nachfolgend in einem Ausführungsbeispiel anhand einer Zeichnung näher beschrieben. In der Zeichnung zeigen die

Fig. 1:
eine geschlossene Form
Fig. 2.
eine geöffnete Form.
The invention will be described below in an embodiment with reference to a drawing. In the drawing show the
Fig. 1:
a closed form
Fig. 2.
an open form.

Eine vertikal angeordnete Formeinrichtung in einer Druckgiessmaschine beinhaltet eine feste Aufspannplatte 1 mit einer festen Formhälfte 2 sowie eine bewegliche Aufspannplatte 5 mit einer beweglichen Formhälfte 4. Die bewegliche Formhälfte 4 weist eine Aussparung 3 für den Hub eines beweglichen Kontureinsatzes 11 auf.A vertically arranged forming device in a die casting machine includes a fixed platen 1 with a fixed mold half 2 and a movable platen 5 with a movable mold half 4. The movable mold half 4 has a recess 3 for the stroke of a movable contour insert 11.

Eine Ausstossereinheit 7 der Druckgiessmaschine weist Verbindungsstangen 8 zur beweglichen Formhälfte 4 und Verriegelungsbolzen 10 zwischen beweglicher Formhälfte 4 und beweglicher Aufspannplatte 5 auf. An der beweglichen Aufspannplatte 5 sind Zylinder 9 eines hydraulischen Schnellspannsystems der Form angeordnet.An ejection unit 7 of the die casting machine has connecting rods 8 to the movable mold half 4 and locking bolt 10 between the movable mold half 4 and movable platen 5. On the movable platen 5 cylinders 9 of a hydraulic quick clamping system of the mold are arranged.

Zwischen beweglichem Kontureinsatz 11 und Ausstossereinheit 7 ist eine Verbindung 6 vorgesehen.Between movable contour insert 11 and ejector unit 7, a connection 6 is provided.

Der Wassermanteleinsatz (Kontureinsatz 11) mit Pinolen ist als Schieber ausgeführt und fest mit der Ausstossereinheit 7 verbunden. Der Schieber ist mit vier Verbindungsstangen 8 (Führungssäulen) im Maschinenschild (bewegliche Aufspannplatte 5) geführt. Im Maschinenschild ist eine gehärtete Platte als Schieberabstützung vorgesehen.The water jacket insert (contour insert 11) with sleeves is designed as a slide and firmly connected to the ejector unit 7. The slider is guided with four connecting rods 8 (guide columns) in the machine plate (movable platen 5). In the machine plate a hardened plate is provided as a slide support.

Nach dem Einpressen einer Leichtmetallschmelze in eine Form zum Giessen einen Motorblockes eines Reihensechsrylindermotors und dem Ablauf einer ersten Erstarrungszeit wird die Entriegelung des Schnellspannsystems 9 der Form ausgefahren, die bewegliche Aufspannplatte 4 wird ca.10 cm verfahren/geöffnet und die Ausstossereinheit 7 vorAfter pressing a light metal melt into a mold for casting an engine block of a straight six-cylinder engine and the expiration of a first solidification time, the unlocking of the quick-release system 9 of the mold is extended, the movable platen 4 is about 10 cm moved / open and the ejector unit 7 before

angesteuert. Anschliessend wird die Entriegelung eingefahren und die Ausstossereinheit 7 zurück angesteuert. Danach fährt der Kontureinsatz 11 mit Pinolen aus und nach Ablauf einer zweiten Erstarrungszeit wird die Form geöffnet. Nicht näher bezeichnete obere und untere Schieber öffnen sich und ein nicht dargestelltes Entnahmegerät kann einfahren und das Gussteil greifen. Danach öffnen die nicht näher dargestellten seitlichen Schieber und das Entnahmegerät kann das Gussteil entnehmen. Somit kann der Kontureinsatz 11 (Wassermanteleinsatz) bereits frühzeitig abkühlen und wird geringer beansprucht.driven. Subsequently, the unlocking is retracted and the ejector unit 7 driven back. Thereafter, the contour insert 11 extends with quills and after a second solidification time, the mold is opened. Unspecified upper and lower slide open and a not shown removal device can retract and grip the casting. Thereafter, the lateral slide not shown open and the removal device can remove the casting. Thus, the contour insert 11 (water jacket insert) already cool down early and is less stressed.

Anschliessend wird die Form in üblicher Weise gesprüht, die Ausstossereinheit 7 fährt vor, die Zylinderlaufbuchsen werden eingelegt. Die Form wird geschlossen, die Entriegelung des Schnellspannsystems 9 wird eingefahren und der nächste Schuss kann erfolgen.Subsequently, the mold is sprayed in a conventional manner, the ejector unit 7 moves forward, the cylinder liners are inserted. The mold is closed, the release of the quick-release system 9 is retracted and the next shot can be made.

Der bewegliche Kontureinsatz 11 selbst kann ebenfalls ausgebaut und gewechselt werden. Hierzu wird bei geschlossener Form zunächst die Entriegelung des Schnellspannsystems 9 der Form ausgefahren und anschliessend der Ausstosser 7 vor angesteuert, so dass die bewegliche Aufspannplatte 5 auffahren kann. Danach kann der ganze Schieber ausgebaut und ein neuer Kontureinsatz 11 eingebaut werden.The movable contour insert 11 itself can also be removed and changed. For this purpose, the unlocking of the quick release system 9 of the mold is first extended and then the ejector 7 before driven so that the movable platen 5 can ascend when the mold is closed. Then the whole slide can be removed and a new contour insert 11 installed.

Bezugszeichenreference numeral

11
feste Aufspannplattefixed clamping plate
22
feste Formhälftesolid mold half
33
Aussparungrecess
44
bewegliche Formhälftemovable mold half
55
bewegliche Aufspannplattemovable platen
66
Verbindungconnection
77
Ausstossereinheitejector unit
88th
Verbindungsstangeconnecting rod
99
Zylindercylinder
1010
Verriegelungsbolzenlocking bolt
1111
Kontureinsatzcontour insert

Claims (2)

  1. Method for the production of engine blocks of in-line engines by means of a moulding device which contains a movable chucking plate (5) and a fixed chucking plate (1) respectively having a movable mould half (4) and a fixed mould half (2) arranged thereon, a clearance (3) for a water-jacket insert with centre sleeves being arranged in the movable mould half, this insert being arranged so as to be liftably movable in this clearance, an ejection unit (7) being connected to the movable chucking plate, and the ejection unit having a connection to the contour insert, characterized in that, after a first solidification time has elapsed, the movable chucking plate (4) without the movable mould half is opened and the ejection unit (7) is advanced, and, subsequently, the ejection unit is retracted, so that the water-jacket insert moves out, and, after a second solidification time has elapsed, the mould is opened.
  2. Moulding device for carrying out the method according to Claim 1 for the production of engine blocks of in-line engines, the moulding device containing a movable chucking plate (5) and a fixed chucking plate (1) respectively having a movable mould half (4) and a fixed mould half (2) arranged thereon, a clearance (3) for a water-jacket insert with centre sleeves being arranged in the movable mould half, this insert being arranged so as to be liftably movable in this clearance, an ejection unit (7) being connected to the movable chucking plate, and an ejection unit (7) having a connection to the contour insert (11).
EP06804832A 2006-05-11 2006-10-25 Process and mold device for producing cast parts Not-in-force EP2018236B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06804832T PL2018236T3 (en) 2006-05-11 2006-10-25 Process and mold device for producing cast parts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006022291A DE102006022291A1 (en) 2005-06-21 2006-05-11 Method for pressure casting complex metal shapes especially cylinder blocks for IC engines has the water jacket mould partially removed from the casting after initial setting
PCT/CH2006/000598 WO2007131368A1 (en) 2006-05-11 2006-10-25 Mold device for producing cast parts

Publications (2)

Publication Number Publication Date
EP2018236A1 EP2018236A1 (en) 2009-01-28
EP2018236B1 true EP2018236B1 (en) 2010-02-24

Family

ID=37654932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06804832A Not-in-force EP2018236B1 (en) 2006-05-11 2006-10-25 Process and mold device for producing cast parts

Country Status (9)

Country Link
US (1) US7980290B2 (en)
EP (1) EP2018236B1 (en)
JP (1) JP4990356B2 (en)
KR (1) KR101453108B1 (en)
CN (1) CN101437637B (en)
AT (1) ATE458568T1 (en)
DE (1) DE502006006290D1 (en)
PL (1) PL2018236T3 (en)
WO (1) WO2007131368A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8814557B2 (en) * 2010-03-24 2014-08-26 United Technologies Corporation Die inserts for die casting
EP2442320B1 (en) * 2010-10-15 2013-01-09 ABB Technology AG Mould for producing hollow cylinder moulded parts
USD830432S1 (en) * 2016-06-06 2018-10-09 Ipex Technologies Inc. 3D printed mold inserts
CN114734006B (en) * 2022-04-20 2023-04-25 辽宁科技大学 Control method for improving solidification quality of cast ingot

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596708A (en) 1969-11-24 1971-08-03 Gen Motors Corp Locking mechanism for diecasting
JPH02175063A (en) * 1988-12-27 1990-07-06 Nissan Motor Co Ltd Method for casting cylinder block having oil hole
JPH03169454A (en) * 1989-11-28 1991-07-23 Mazda Motor Corp Method for casting light alloy-made cylinder block
JPH0671409A (en) * 1992-08-28 1994-03-15 Ryobi Ltd Die for casting water-cooled cylinder block
US5865241A (en) 1997-04-09 1999-02-02 Exco Technologies Limited Die casting machine with precisely positionable obliquely moving die core pieces
US6761208B2 (en) * 2002-10-03 2004-07-13 Delaware Machinery & Tool Co. Method and apparatus for die-casting a V-block for an internal combustion engine
US7500508B2 (en) * 2005-07-08 2009-03-10 Buhler Druckguss Ag Injection-molding device for manufacturing V-engine blocks
US7669639B2 (en) * 2006-03-03 2010-03-02 Delaware Machinery And Tool Co., Inc. Molding and die casting apparatus and methods

Also Published As

Publication number Publication date
KR20090010961A (en) 2009-01-30
CN101437637A (en) 2009-05-20
ATE458568T1 (en) 2010-03-15
DE502006006290D1 (en) 2010-04-08
CN101437637B (en) 2013-02-20
PL2018236T3 (en) 2010-07-30
US20090071623A1 (en) 2009-03-19
JP4990356B2 (en) 2012-08-01
KR101453108B1 (en) 2014-10-27
US7980290B2 (en) 2011-07-19
EP2018236A1 (en) 2009-01-28
JP2009536578A (en) 2009-10-15
WO2007131368A1 (en) 2007-11-22

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