EP1155763B1 - Verfahren und Vorrichtung zum Rotationsgiessen - Google Patents

Verfahren und Vorrichtung zum Rotationsgiessen Download PDF

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Publication number
EP1155763B1
EP1155763B1 EP01105516A EP01105516A EP1155763B1 EP 1155763 B1 EP1155763 B1 EP 1155763B1 EP 01105516 A EP01105516 A EP 01105516A EP 01105516 A EP01105516 A EP 01105516A EP 1155763 B1 EP1155763 B1 EP 1155763B1
Authority
EP
European Patent Office
Prior art keywords
casting
mould
container
mold
base plate
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.)
Expired - Lifetime
Application number
EP01105516A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1155763A1 (de
Inventor
Friedhelm Prof. Dr. Kahn
Joachim Kahn
Gerhard Dipl.-Ing. Eisenberger
Horst Paul Grüness
Walter Hauder
Johann Winkler
Peter Dr. Stika
Johann Preisinger
Peter Jungbauer
Klaus Schröter
Rolf Dr. Gosch
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.)
Hydro Aluminium Mandl and Berger GmbH
Original Assignee
Hydro Aluminium Mandl and Berger GmbH
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 Hydro Aluminium Mandl and Berger GmbH filed Critical Hydro Aluminium Mandl and Berger GmbH
Priority to DE20122596U priority Critical patent/DE20122596U1/de
Publication of EP1155763A1 publication Critical patent/EP1155763A1/de
Application granted granted Critical
Publication of EP1155763B1 publication Critical patent/EP1155763B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/006Casting by filling the mould through rotation of the mould together with a molten metal holding recipient, about a common axis

Definitions

  • the invention relates to a method and apparatus for rotational molding. From EP 0656819 B1 methods and devices are known in which a mold with a downwardly open sprue is brought together with a casting container with open-topped opening, then melt is poured for a casting into the casting container and then the mold with the adjacent casting container is rotated by about 180 ° about a horizontal axis, so that the melt passes into the mold. The filling of the translationally stationary in the vertical direction casting container takes place via a filling opening, which is provided with a special closure.
  • the solution consists in a method for rotational molding, in which a casting mold is constructed with an upward pouring side on a base plate, then the finished mold with the base plate is rotated by about 180 ° about a horizontal axis, so that the pouring side faces downward , a casting container with upwardly opening side is filled with melt for a casting process, then the casting container filled with melt is sealingly docked with its opening side to the downwardly facing pouring side of the mold, the mold is rotated with the adjacent casting container by about 180 ° about a horizontal axis, so that the melt passes into the mold, and thereafter the casting container is removed from the mold from the docked position.
  • the filling of the casting container with melt for a casting process takes place away from the casting mold.
  • the invention further resides in a device for rotational molding with a casting mold built up on a base plate with a sprue pointing the way from the upper side of the base plate, supporting means for the base plate in which it rotates about a horizontal axis of rotation at least about 180 ° is; a casting container whose opening is opposite to the top of the base plate aligned, movement means for the casting container, with which this sealingly with its opening to the downwardly facing sprue of the mold and dockable in the rotated position of the upwardly facing sprue of the mold is removable and with movement means with which the casting container with the docked casting mold is rotatable together by at least 180 ° about a horizontal axis of rotation.
  • the mold - whether manually or partially automated - can be constructed easily and quickly, so that the construction of the mold is simplified and easy to control. Furthermore, due to the filling of the casting container taking place remotely from the casting mold, improved controllability and increased safety during filling of the casting container, which does not have a special closure mechanism, are provided needed.
  • By turning the mold after building and by docking the casting container from below with its opening to the sprue of the mold opens up the possibilities and advantages of Rotationsgie Hs, ie, in a subsequent turning back or further rotation of the mold with docked casting container about a horizontal axis a turbulence-free calmed down pouring process.
  • the casting container can then be removed from the casting mold at the top, the sprue of which now points at the top.
  • This procedure also makes it possible to put on the upwardly open sprue and now optionally overhead feeder a pressure hood and to improve the solidification process by gas pressure application.
  • This gas pressure application is preferably carried out after the complete formation of a hardened surface layer in the casting mold.
  • the casting mold can consist entirely of molded parts and can be constructed from a base plate consisting of molding material, ie the casting mold can consist of a so-called core package in which all surfaces of the molding cavity are formed from cores.
  • the mold can also be constructed on a base plate made of metal and possibly also have side walls made of metal, are inserted into the inner cores made of molding material and which are closed with a cover core made of molding material upwards, ie the mold can form a so-called Halbkokille.
  • the mold can also be completely formed as a permanent mold with a metallic base plate and metallic side parts and metallic lid, in which the necessary molding cores are inserted, ie the mold can be formed as a mold.
  • the turning of the finished mold is done before docking of the casting container and the rotation of the mold after docking of the casting container to the same horizontal axis. It is advantageous if the mold alone as well as together with the docked casting container is rotated about a casting mold penetrating, lying near the base plate axis, so that the overall arrangement is mounted approximately in the center of gravity.
  • the method is further preferably carried out so that the casting container for docking and removal from the mold a radial movement to the horizontal axis of rotation and for transferring into a filling position exerts a pivoting about the axis of said radial movement movement.
  • the device according to the invention is preferably characterized in that the device comprises a bogie with two cheek parts, in which pivot pins are mounted, between which the base plate is suspended.
  • the casting container is preferably displaceable on a column arranged radially to the horizontal pivot, wherein in particular the column is pushed onto one of the pivot pins.
  • the column is firmly connected to the base plate.
  • a radial pivoting arm is preferably attached to the column, which is rotatable about the axis of the column and to which the casting container is directly attached.
  • the casting mold on the sprue side each has at least one sprue opening and a gas outlet, which occupy different angular positions relative to the horizontal axis of rotation.
  • the casting container may have a tie-down position on the casting mold parallel to the horizontal axis of rotation extending intermediate wall, which dips into the melt and ends at a distance from the bottom of the casting container.
  • this intermediate wall causes retention and stripping of oxide layers.
  • the casting container docked to the casting mold can in this case cover with its opening both the sprue and the vent opening of the casting mold, these two coming to rest on different sides of said partition.
  • the device according to the invention can preferably be used in a foundry plant in such a way that at least two devices according to the invention are associated with a melting furnace with a dosing spoon and can be moved back and forth in a linear movement between a casting station on the melting furnace and at least one solidification station.
  • the casting station here preferably also the mold assembly and demolding take place, so that all handling organs are brought together here.
  • a separate station can also be provided for the mold assembly and the demoulding.
  • the casting plant is to be referred to with two devices as a tandem and with three devices as Tridemstrom, the latter represents the reasonable maximum.
  • a plurality of devices according to the invention can be incorporated into a foundry plant such that they are associated with a melting furnace with dosing spoons and can be transferred on a circular path from a casting station into at least one solidification station.
  • the casting station can again be simultaneously the station for the mold assembly and the demoulding.
  • a melting furnace with associated dosing with at least two devices according to the invention can be combined so that they are firmly established in a linear arrangement and the dosing between these and the furnace is mobile back and forth. This simplifies the transport or handling means.
  • a melting furnace with associated dosing with a plurality of devices according to the invention can be constructed in a circle formation that the dosing between the furnace and the devices is pivotable back and forth. This is cheaper for a larger number of devices than the linear arrangement.
  • a device 11 comprises a bogie 12, which has a base plate 13 and two cheek parts 14, 15.
  • a shorter pivot pin 17 is mounted in a bearing 16.
  • a longer pivot pin 19 is mounted in a bearing 18.
  • On the pivot pin 19 is a rotary drive 20 a.
  • the two pivot pins are coaxial with a horizontal axis of rotation 21.
  • a multi-part base plate 22 is used, which is rotatable together with the pivot pin about the rotation axis 21.
  • a casting mold 23 is constructed, the pouring side facing upwards in the position shown.
  • actuating cylinders 24, 25, which act on opposite the base plate movable side parts 26, 27 of the mold 23.
  • a positioning cylinder 28 can be seen on the base plate 22, which acts on a relative to the base plate 22 pivotable end portion of the mold 23.
  • a control cylinder 32 Below the base plate 22 is a control cylinder 32, with the passing through the base plate ejector 33, 34, 35 are actuated.
  • a column 38 On the pivot pin 19 a column 38 is further pushed, which is firmly connected to the base plate 22.
  • the column axis 39 of the column 38 is arranged radially to the horizontal axis of rotation 21.
  • the column 38 is constructed telescopically and extendable by means of an actuating cylinder 45 in the direction of the column axis 39, wherein the extended position is shown.
  • a pivot arm 41 Arranged on this column 38 is a pivot arm 41 which is substantially radially aligned with the column axis 39 and has a base plate on which a casting container 43 is mounted whose opening side 46 points downwards.
  • the pivot arm 41 is rotatable about the column axis 39 by means of a rotary motor 44. From the illustrated position, the column 38 can be shortened in the direction of the horizontal axis of rotation 21, so that the casting container 43 lowers with the underlying opening side 46 on the overhead Eingußseite 36 of the mold 23. When the casting container is filled, this movement is completed in the position of the casting mold 23 and the pouring container 43 rotated by 180 ° about the horizontal axis of rotation 21.
  • the prior filling of the casting container is preferably carried out in a rotated by 90 ° from the position shown about the column axis 39 position, as shown in dashed lines in Figure 2, and in a further rotated by 180 ° about the horizontal axis of rotation 21 position.
  • the casting container 43 After the casting container 43 is filled, it is pivoted back with the pivot arm 41 in the relative position shown in Figure 1 with respect to the mold 23, but the overall arrangement is rotated by 180 ° relative to the position shown. Thereafter, the column is shortened by means of the adjusting cylinder 45, so that the overhead opening side 46 of the pouring container 43 against the down lying inlet side 36 of the mold 23 applies. Thereafter, in this docked position, the overall arrangement is rotated by 180 °, wherein the casting process takes place. Thereafter, the casting container 43 is returned by extending the column 38 in the position shown. To remove the casting container 43 is then wegzuschwenken in the position shown in dashed lines in Figure 2 by about 90 °.
  • FIGS. 3 and 4 will be described together below.
  • the casting mold 23 and the casting container 43 are shown in the configuration indicated by the dashed representation of the casting container in FIG. 2, the casting mold 23 being shown in cross-section and the casting container 43 being shown in longitudinal section.
  • the column 38 with the column axis 39 and the pivot arm 41 are shown only symbolically.
  • the column 38 is not shortenable here; Rather, the casting container 43 by means of a control cylinder 45 'relative to the pivot arm 41 can be moved.
  • the casting container 43 has a central longitudinal wall 49 which terminates at a distance from the bottom.
  • the mold 23 comprises the multi-part base plate 22, the side parts 26, 27, a plurality of inner cores 30, which are constructed in several layers one above the other on the base plate 22, and the cover core 31.
  • the plurality of inner cores 30 are in continuous flow of force between the base plate 22nd and the cover core 31 clamped. Form projections 47, 48 can be seen on the side parts 26, 27, which additionally hold individual inner cores 30 against the base plate 22.
  • the side parts 26, 27 are displaceable by the adjusting cylinders 24, 25 relative to the base plate 22, wherein the suspension of the actuating cylinder is not shown here. By the adjusting cylinders 24, 25, the side parts 26, 27 relative to each other are removable. Thereafter, the structure of the inner cores 30 can be made on the base plate 22.
  • the cover core 31 is placed, which is held by bolts 51, 52, which can be pushed back for mounting the cover core 31 relative to the side parts 26, 27 and can be advanced after placing the cover core 31 in the position shown, in which they Cover core 31 against the inner cores 30 and the side members 26, 27 hold.
  • the ejector 35 can be seen, which are actuated for removal by means of the actuating cylinder 32.
  • the base plate 22 and thus the entire casting mold 23 is rotatable about the horizontal axis 21 perpendicular to the plane of the drawing.
  • the finished mold 23 is shown in its position after completion.
  • the casting container 43 is suspended overhead, is removed via the actuating cylinder 45 'from the mold 23 and pivoted by means of the pivot arm 41 on the column 38 by 90 ° from the position for docking and pouring.
  • the mold 23 is rotated with the column 38 and the casting container 43 by 180 ° about the horizontal axis of rotation 21 relative to the position shown in FIG.
  • the casting container 43 is still in the same relative position to the mold 23 as in Figure 1, but is now open at the top and is filled by means of a dosing 53 with melt 54 for a casting.
  • the casting container 43 with the pivot arm 41st pivoted by 90 ° relative to the column 38, so that the casting container 43 comes to lie under the mold 23 in front of the column 38.
  • the casting container 43 is lifted by means of the actuating cylinder 45 'against the mold 23, so that the casting container 43 sealingly abuts with its opening side 46 on the pouring side 36 of the mold 23.
  • the casting mold 23 with docked casting container 43 is further rotated about the horizontal axis of rotation 21 by 180 °.
  • the measured on the mold cavity 37 of the mold 23 melt 54 flows through a sprue 55 in the mold cavity 37, wherein gas can escape from a gas outlet 56 into the casting container 43.
  • the casting container 43 is lifted off the casting mold 23 with the actuating cylinder 45 'and rotated back into the position shown in FIG. 3 via the swivel arm 41. After solidification, the demolding can be done starting with the retraction of the side parts 26, 27.
  • FIG. 5 different phases of the casting process are shown, wherein first of all the details which can be recognized in all individual representations are named again.
  • the side parts 26, 27 consist in this embodiment of molding material, while the cover plate 31 'is a permanent mold part.
  • the cover plate 31 'are claws 57, 58 can be seen, with which the casting container 43 can be fixed to the mold 23.
  • two gates 55, 59 and two gas outlets 56, 60 can be seen.
  • An outer shell, a lining and the intermediate wall 49 can be seen on the casting container 43, furthermore the molten liquid 54.
  • Representation a shows the starting position after docking of the casting container 43 to the casting mold 23. It can be assumed that the melt left of the intermediate wall 49 has been filled into the casting container 43, so that oxide layers and the like are retained on this side of the intermediate wall 49, while to the right of the intermediate wall 49 forms an oxide-free melt level.
  • the arrangement of casting mold 23 and casting container 43 is rotated by 45 ° about the axis of rotation 21.
  • the melt 54 begins to enter the mold cavity 37 through the gate 55.
  • the contaminants of the melt are retained by the intermediate wall 49.
  • the position may be reached after 2 seconds.
  • the arrangement of casting mold 23 and casting container 43 is rotated by 60 ° about the axis of rotation 21.
  • the melt 54 now additionally begins to enter through the pouring opening 59 into the mold cavity 37.
  • the contaminants of the melt are still retained by the intermediate wall 49. For example, the position may be reached after 4 seconds.
  • the arrangement of casting mold 23 and casting container 43 is rotated by 90 ° about the axis of rotation 21.
  • the melt 54 is now below the intermediate wall 49.
  • the impurities of the melt float above both gates 55, 59. For example, the position may be reached after 5 seconds.
  • the arrangement of casting mold 23 and casting container 43 is rotated by 135 ° about the axis of rotation 21.
  • the melt 54 occupies the mold cavity 37 almost completely.
  • the position may be reached after 8 seconds.
  • the end of the casting process is achieved after the unit of casting mold 23 and casting container 43 has been rotated by 180 ° about the horizontal axis 21.
  • the impurities of the melt can only have come into areas that act as a riser and are removed in the mechanical processing of the casting. All gases have exited through the gas outlets 56, 60 in the casting, so that the sprue was disturbed at any time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulding By Coating Moulds (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Dental Prosthetics (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Motors, Generators (AREA)
EP01105516A 2000-04-19 2001-03-06 Verfahren und Vorrichtung zum Rotationsgiessen Expired - Lifetime EP1155763B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20122596U DE20122596U1 (de) 2000-04-19 2001-03-06 Vorrichtung zum Rotationsgießen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10019309A DE10019309C2 (de) 2000-04-19 2000-04-19 Verfahren und Vorrichtung zum Rotationsgießen
DE10019309 2000-04-19

Publications (2)

Publication Number Publication Date
EP1155763A1 EP1155763A1 (de) 2001-11-21
EP1155763B1 true EP1155763B1 (de) 2006-02-01

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EP01105516A Expired - Lifetime EP1155763B1 (de) 2000-04-19 2001-03-06 Verfahren und Vorrichtung zum Rotationsgiessen

Country Status (19)

Country Link
US (1) US6715535B2 (no)
EP (1) EP1155763B1 (no)
JP (1) JP3414724B2 (no)
KR (1) KR100456764B1 (no)
CN (1) CN1129493C (no)
AT (1) ATE316833T1 (no)
AU (1) AU739971B1 (no)
BR (1) BR0101509A (no)
CA (1) CA2344273C (no)
CZ (1) CZ297589B6 (no)
DE (2) DE10019309C2 (no)
ES (1) ES2257350T3 (no)
HU (1) HU225856B1 (no)
MX (1) MXPA01003907A (no)
NO (1) NO20011904L (no)
PL (1) PL195141B1 (no)
RU (1) RU2205091C2 (no)
SK (1) SK286534B6 (no)
ZA (1) ZA200103161B (no)

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DE202009012656U1 (de) 2008-09-23 2010-02-11 Fill Gesellschaft M.B.H. Vorrichtung zum Gießen mit einer Kokille
DE102010022343A1 (de) * 2010-06-01 2011-12-01 Volkswagen Ag Verfahren zum Kippgießen von Bauteilen und Kippgießvorrichtung
DE202019100206U1 (de) 2018-01-16 2019-01-23 Nemak, S.A.B. De C.V. Anlage zum Gießen von Gussteilen

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AT514740B1 (de) 2013-05-27 2020-12-15 Nemak Sab De Cv Verfahren und Vorrichtung zum Gießen eines Gussteils
KR101504584B1 (ko) 2013-07-25 2015-03-20 주식회사 동서기공 금형과 용탕버킷 간의 기밀 성능을 향상시킨 로터리형 주조장치
KR101499786B1 (ko) * 2013-07-25 2015-03-06 주식회사 동서기공 이젝트핀 홀딩 기능을 갖는 로터리형 주조장치
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PL2942126T3 (pl) * 2014-04-30 2019-05-31 Diesse S R L Obrotowe urządzenie do odlewania kokilowego z formą
KR101592774B1 (ko) 2014-10-17 2016-02-15 현대자동차주식회사 회전식 중력 주조용 용탕 주입 몰드 및 이를 이용한 주조방법
ES2633026T3 (es) 2015-01-21 2017-09-18 Nemak, S.A.B. De C.V. Procedimiento para la fabricación de piezas fundidas de forma compleja y pieza fundida que se compone de una aleación de AlCu
KR101681030B1 (ko) * 2015-03-20 2016-12-01 주식회사 동서기공 회전주조장치 및 이를 이용한 회전주조방법
DE102016220240A1 (de) 2015-10-15 2017-04-20 Volkswagen Aktiengesellschaft Rotationsgießverfahren
DE102017100805A1 (de) * 2017-01-17 2018-07-19 Nemak, S.A.B. De C.V. Gießform zum Gießen von komplex geformten Gussteilen und Verwendung einer solchen Gießform
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CN110479978B (zh) * 2019-08-21 2021-07-27 中原内配集团安徽有限责任公司 一种基于过共晶合金的发动机缸套的制备方法
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CN115837460B (zh) * 2023-02-16 2023-04-14 德林智能科技有限公司 一种铸造自动化造型线

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009012656U1 (de) 2008-09-23 2010-02-11 Fill Gesellschaft M.B.H. Vorrichtung zum Gießen mit einer Kokille
DE102010022343A1 (de) * 2010-06-01 2011-12-01 Volkswagen Ag Verfahren zum Kippgießen von Bauteilen und Kippgießvorrichtung
DE102010022343B4 (de) * 2010-06-01 2017-10-26 Volkswagen Ag Verfahren zum Kippgießen von Bauteilen und Kippgießvorrichtung
DE202019100206U1 (de) 2018-01-16 2019-01-23 Nemak, S.A.B. De C.V. Anlage zum Gießen von Gussteilen

Also Published As

Publication number Publication date
CA2344273C (en) 2005-06-14
SK286534B6 (sk) 2008-12-05
ATE316833T1 (de) 2006-02-15
BR0101509A (pt) 2001-11-20
MXPA01003907A (es) 2004-06-25
CN1326831A (zh) 2001-12-19
EP1155763A1 (de) 2001-11-21
AU739971B1 (en) 2001-10-25
PL346961A1 (en) 2001-10-22
PL195141B1 (pl) 2007-08-31
HUP0101575A2 (hu) 2001-12-28
KR100456764B1 (ko) 2004-11-10
SK4862001A3 (en) 2002-07-02
HU225856B1 (en) 2007-11-28
NO20011904D0 (no) 2001-04-18
KR20010098533A (ko) 2001-11-08
RU2205091C2 (ru) 2003-05-27
DE50108819D1 (de) 2006-04-13
US20020000304A1 (en) 2002-01-03
HUP0101575A3 (en) 2002-02-28
JP2001347363A (ja) 2001-12-18
CZ20011265A3 (cs) 2002-05-15
JP3414724B2 (ja) 2003-06-09
NO20011904L (no) 2001-10-22
US6715535B2 (en) 2004-04-06
HU0101575D0 (en) 2001-06-28
ZA200103161B (en) 2002-10-01
CA2344273A1 (en) 2001-10-19
CN1129493C (zh) 2003-12-03
DE10019309C2 (de) 2002-04-18
ES2257350T3 (es) 2006-08-01
CZ297589B6 (cs) 2007-02-07
DE10019309A1 (de) 2001-10-31

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