EP0567758A1 - Jacket for flaskless moulds - Google Patents

Jacket for flaskless moulds Download PDF

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Publication number
EP0567758A1
EP0567758A1 EP93104396A EP93104396A EP0567758A1 EP 0567758 A1 EP0567758 A1 EP 0567758A1 EP 93104396 A EP93104396 A EP 93104396A EP 93104396 A EP93104396 A EP 93104396A EP 0567758 A1 EP0567758 A1 EP 0567758A1
Authority
EP
European Patent Office
Prior art keywords
pressure plates
frame
jacket
casting
sand mold
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Withdrawn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
EP93104396A
Other languages
German (de)
French (fr)
Inventor
Ernst Otto Kruse
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.)
Georg Fischer Giessereianlagen AG
Original Assignee
Georg Fischer Giessereianlagen 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 Georg Fischer Giessereianlagen AG filed Critical Georg Fischer Giessereianlagen AG
Publication of EP0567758A1 publication Critical patent/EP0567758A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D33/00—Equipment for handling moulds
    • B22D33/06—Burdening or relieving moulds

Definitions

  • the invention relates to a jacket for supporting castless forms during casting.
  • Casting molds are subjected to pressure from inside to outside when pouring through the liquid metal, in both the horizontal and vertical directions.
  • the horizontal pressure forces are absorbed by the molding box, while the vertical buoyancy forces are absorbed by clamping the mold box halves or by weighting weights that are placed on the top box.
  • Such devices are known, one part of which acts as a weighting iron and the other part of which is pressed against the side surfaces. Such facilities are complicated and expensive. In addition, the weight plate and the actuation mechanism for the side plates interfere with the casting.
  • a further disadvantage with known systems is the risk that when the device is placed on the boxless mold by means of side joints, the upper part of the mold is displaced against the lower part, so that "offset" occurs on the casting and waste is produced.
  • the present invention has set itself the task of eliminating the disadvantages listed and creating a simple device that absorbs both the vertical and horizontal casting pressure, ensures an offset-free placement and can be easily cleaned automatically.
  • Fig. 1 the top view of a boxless mold with a support device, which is referred to as a jacket, is shown.
  • Fig. 2 a cross section of the form with jacket and trolley is shown.
  • the boxless mold consisting of the lower mold part 1 and the upper mold part 2, is transported on a trolley 3.
  • the jacket consists of a heavy frame 5 and four pressure plates 6.
  • the pressure plates 6 are connected to the frame 5 in an area delimited by the screws 8 such that they can be moved in height by inclined surfaces 10.
  • the pressure plates 6 each have at least two feet 7 which are supported on the carriage 3.
  • the arms 4 of the translation device lift the jacket on the frame 5 from the already cast castless shape, the pressure plates initially not changing their height by the upward movement of the frame 5, so that due to the inclined contact plane 10 and the screws 8 movable in a vertical slot, one horizontal movement away from the boxless form, whereby a gap 9 is formed on all sides.
  • the jacket is put on in the reverse order:
  • the translator carries the jacket on the frame 5 with the arms 4 and lowers it with a spacing gap 9 over the mold until the pressure plates 6 touch the carriage 3 with their feet 7.
  • the frame 6 is moved even further downward, the pressure plates 6 being pressed uniformly against the mold on all sides by the inclined contact surfaces 10. Due to the exact parallel movement of the pressure plates, displacement (misalignment) between the upper and lower bales (1, 2) is impossible.
  • the top bale is held against the vertical casting pressure by the force-fitting pressing of the pressure plates, so that the entire top of the mold is kept free for casting.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)

Abstract

The invention proposes a device for supporting and loading flaskless sand moulds during casting and during the solidification phase and is intended preferably for use in mechanical and automatic moulding systems. In this device, pressure plates (6) are mounted with a limited ability for vertical movement on inclined planes (10) of contact on two or four sides of a heavy frame (5), these pressure plates performing a horizontal motion towards the sand moulds when their downward movement is stopped and the frame (5) is moved further downwards. <IMAGE>

Description

Die Erfindung betrifft ein Jacket zum Abstützen kastenloser Formen beim Giessen.The invention relates to a jacket for supporting castless forms during casting.

Giessformen werden beim Giessen durch das flüssige Metall auf Druck von innen nach aussen beansprucht und zwar sowohl in horizontaler als auch in vertikaler Richtung.Casting molds are subjected to pressure from inside to outside when pouring through the liquid metal, in both the horizontal and vertical directions.

Beim Giessen von Sandformen im Kasten werden die horizontalen Druckkräfte durch den Formkasten aufgenommen, während die vertikalen Auftriebskräfte durch Verklammern der Formkastenhälften oder durch Beschwergewichte aufgenommen werden, die auf den Oberkasten gelegt werden.When casting sand molds in the box, the horizontal pressure forces are absorbed by the molding box, while the vertical buoyancy forces are absorbed by clamping the mold box halves or by weighting weights that are placed on the top box.

Kastenlose horizontal geteilte Formen müssen zum Aufnehmen des Giessdruckes mit speziellen Einrichtungen versehen werden, die den horizontalen und vertikalen Giessdruck aufnehmen.Boxless, horizontally divided molds must be equipped with special devices to absorb the horizontal and vertical casting pressure in order to absorb the casting pressure.

Es sind solche Einrichtungen bekannt, deren einer Teil als Beschwereisen wirkt und deren anderer Teil gegen die Seitenflächen gedrückt wird. Solche Einrichtungen sind kompliziert und teuer. Ausserdem stören die Beschwerplatte und der Betätigungsmechanismus für die Seitenplatten beim Giessen.Such devices are known, one part of which acts as a weighting iron and the other part of which is pressed against the side surfaces. Such facilities are complicated and expensive. In addition, the weight plate and the actuation mechanism for the side plates interfere with the casting.

Ein weiterer Nachteil bei bekannten Systemen ist die Gefahr, dass beim Aufsetzen der Einrichtung auf die kastenlose Form duch Seitenstösse das Oberteil der Form gegen das Unterteil verschoben wird, sodass "Versatz" am Gussstück entsteht und Ausschuss produziert wird.A further disadvantage with known systems is the risk that when the device is placed on the boxless mold by means of side joints, the upper part of the mold is displaced against the lower part, so that "offset" occurs on the casting and waste is produced.

Die Reinigung einer solchen Einrichtung von anhaftendem Sand ist sehr aufwendig.The cleaning of such a device from adhering sand is very complex.

Die vorliegende Erfindung hat es sich zur Aufgabe gemacht, die aufgeführten Nachteile zu eliminieren und eine einfache Vorrichtung zu schaffen, die sowohl den vertikalen als auch den horizontalen Giessdruck aufnimmt, ein versatzfreies Aufsetzen gewährleistet und sich einfach automatisch reinigen lässt.The present invention has set itself the task of eliminating the disadvantages listed and creating a simple device that absorbs both the vertical and horizontal casting pressure, ensures an offset-free placement and can be easily cleaned automatically.

In Fig. 1 ist die Draufsicht einer kastenlosen Formen mit einer Abstützvorrichtung, die mit Jacket bezeichnet wird, dargestellt.In Fig. 1, the top view of a boxless mold with a support device, which is referred to as a jacket, is shown.

In Fig. 2 ist ein Querschnitt der Form mit Jacket und Transportwagen dargestellt.In Fig. 2 a cross section of the form with jacket and trolley is shown.

Die kastenlose Form, bestehend aus Form-Unterteil 1 und Formoberteil 2, wird auf einem Wagen 3 transportiert.The boxless mold, consisting of the lower mold part 1 and the upper mold part 2, is transported on a trolley 3.

Das Jacket besteht aus einem schweren Rahmen 5 und vier Andrückplatten 6.The jacket consists of a heavy frame 5 and four pressure plates 6.

Die Andrückplatten 6 sind über geneigte Flächen 10 mit dem Rahmen 5 in einem durch die Schrauben 8 begrenzten Bereich höhenbeweglich miteinander verbunden.The pressure plates 6 are connected to the frame 5 in an area delimited by the screws 8 such that they can be moved in height by inclined surfaces 10.

Die Andrückplatten 6 weisen je mind. zwei Füsse 7 auf, die sich am Wagen 3 abstützen.The pressure plates 6 each have at least two feet 7 which are supported on the carriage 3.

Die Arme 4 der Übersetzvorrichtung heben das Jacket am Rahmen 5 von der bereits abgegossenen kastenlosen Form ab, wobei durch die Aufwärtsbewegung des Rahmens 5 die Andrückplatten zunächst ihre Höhenlage nicht verändern, sodass aufgrund der geneigten Berührungsebene 10 und der in einem vertikalen Schlitz beweglichen Schrauben 8 eine horizontal Bewegung weg von der kastenlosen Form ausführt, wodurch allseitig ein Spalt 9 entsteht.The arms 4 of the translation device lift the jacket on the frame 5 from the already cast castless shape, the pressure plates initially not changing their height by the upward movement of the frame 5, so that due to the inclined contact plane 10 and the screws 8 movable in a vertical slot, one horizontal movement away from the boxless form, whereby a gap 9 is formed on all sides.

Wenn der Rahmen 5 den oberen Rand der Andrückplatten 6 erreicht hat, werden diese mit dem Rahmen 5 gemeinsam nach oben gezogen.When the frame 5 has reached the upper edge of the pressure plates 6, these are pulled upwards together with the frame 5.

Das Aufsetzen des Jacket erfolgt in umgekehrter Folge:
Die Übersetzvorrichtung trägt mit den Armen 4 das Jacket am Rahmen 5 und senkt es mit einem Abstands-Spalt 9 über die Form, bis die Andrückplatten 6 mit ihren Füssen 7 den Wagen 3 berühren. Der Rahmen 6 wird noch weiter abwärts bewegt, wobei die Andrückplatten 6 durch die geneigten Berührungsflächen 10 allseitig gleichmässig gegen die Form gedrückt werden. Durch die genaue Parallelbewegung der Andrückplatten ist eine Verschieben (Versatz) zwischen Ober- und Unterballen (1, 2) ausgeschlossen.The jacket is put on in the reverse order:
The translator carries the jacket on the frame 5 with the arms 4 and lowers it with a spacing gap 9 over the mold until the pressure plates 6 touch the carriage 3 with their feet 7. The frame 6 is moved even further downward, the pressure plates 6 being pressed uniformly against the mold on all sides by the inclined contact surfaces 10. Due to the exact parallel movement of the pressure plates, displacement (misalignment) between the upper and lower bales (1, 2) is impossible.

Durch das kraftschlüssige Anpressen der Andrückplatten wird gleichzeitig der Oberballen gegen den vertikalen Giessdruck gehalten, sodass die gesamte Oberseite der Form für das Giessen freigehalten wird.The top bale is held against the vertical casting pressure by the force-fitting pressing of the pressure plates, so that the entire top of the mold is kept free for casting.

Da das Jacket im abgenommenen Zustand oben und unten offen ist, ist ein automatisches Reinigen den Andrückflächen unproblematisch.Since the jacket is open at the top and bottom when removed, automatic cleaning of the pressure surfaces is unproblematic.

Claims (4)

Vorrichtung zum Abstützen und Belasten von kastenlosen Sandformen während des Giessens und der Erstarrungsphase, vorzugsweise zur Verwendung in mechanischen und automatischen Formanlagen, dadurch gekennzeichnet, dass in einem schweren Rahmen (5) zwei- oder vierseitig Andrückplatten (6) auf geneigten Berührungseben (10) begrenzt höhenbeweglich angebracht sind, die eine horizontale Bewegung gegen die Sandform ausführen, wenn ihre Abwärtsbewegung gestoppt und der Rahmen (5) weiter abwärts bewegt wird.Device for supporting and loading boxless sand molds during the casting and solidification phase, preferably for use in mechanical and automatic molding systems, characterized in that in a heavy frame (5) pressure plates (6) on two or four sides are limited to inclined contact planes (10) are vertically movable, which perform a horizontal movement against the sand mold when its downward movement is stopped and the frame (5) is moved further downward. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Andrückplatten (6) mit Füssen (7) versehen sind, die sich beim Aufsetzen auf die Sandform (1, 2) auf dem Wagen (3) abstützen.Device according to claim 1, characterized in that the pressure plates (6) are provided with feet (7) which are supported on the carriage (3) when placed on the sand mold (1, 2). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Aussenwände der Sandform (1, 2) senkrecht sind.Device according to claim 1 or 2, characterized in that the outer walls of the sand mold (1, 2) are vertical. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Aussenwände der Sandform (1, 2) geneigt sind.Device according to one of claims 1 to 3, characterized in that the outer walls of the sand mold (1, 2) are inclined.
EP93104396A 1992-04-15 1993-03-18 Jacket for flaskless moulds Withdrawn EP0567758A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH125292A CH685864A5 (en) 1992-04-15 1992-04-15 Apparatus for supporting flaskless forms
CH1252/92 1992-04-15

Publications (1)

Publication Number Publication Date
EP0567758A1 true EP0567758A1 (en) 1993-11-03

Family

ID=4206048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104396A Withdrawn EP0567758A1 (en) 1992-04-15 1993-03-18 Jacket for flaskless moulds

Country Status (7)

Country Link
EP (1) EP0567758A1 (en)
JP (1) JP2617079B2 (en)
CN (1) CN1082960A (en)
CH (1) CH685864A5 (en)
CZ (1) CZ65593A3 (en)
HU (1) HUT65107A (en)
RU (1) RU2061574C1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5187567B2 (en) * 2008-05-02 2013-04-24 株式会社コーヨー Pouring frame device for pouring
CN105798243B (en) * 2014-12-31 2019-03-22 保定维尔铸造机械股份有限公司 A kind of vertical-parting shoot squeeze molding machine being used to prepare spheroidal graphite cast-iron
CN104624985B (en) * 2015-01-16 2016-06-22 东风商用车有限公司 On-line detection method for wrong mold of sand mold without box molding
JP6743721B2 (en) * 2017-02-07 2020-08-19 新東工業株式会社 Surface frame bogie frame shift prevention mechanism
CN108746503B (en) * 2018-08-28 2024-06-07 共享智能铸造产业创新中心有限公司 Embedded clamping device
CN111085675B (en) * 2019-12-25 2021-06-18 肇庆学院 Sand mould casting platform
KR20230009406A (en) * 2020-05-12 2023-01-17 로저스코포레이션 M-type hexaferrite containing low dielectric loss ceramics

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2654442B1 (en) * 1976-12-01 1977-12-29 Zimmermann Maschf Gustav Sand mould clamping jig contg. top and side plates - for clamping and reinforcing boxless sand moulds during casting
US4305692A (en) * 1975-06-24 1981-12-15 Brauer Edwin H Mold handler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305692A (en) * 1975-06-24 1981-12-15 Brauer Edwin H Mold handler
DE2654442B1 (en) * 1976-12-01 1977-12-29 Zimmermann Maschf Gustav Sand mould clamping jig contg. top and side plates - for clamping and reinforcing boxless sand moulds during casting

Also Published As

Publication number Publication date
HU9301101D0 (en) 1993-08-30
JPH0615411A (en) 1994-01-25
CH685864A5 (en) 1995-10-31
HUT65107A (en) 1994-04-28
CN1082960A (en) 1994-03-02
CZ65593A3 (en) 1994-01-19
RU2061574C1 (en) 1996-06-10
JP2617079B2 (en) 1997-06-04

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