EP0878252A1 - Moule pour installation de moulage automatic et procédé de fabrication d'un tel moule - Google Patents

Moule pour installation de moulage automatic et procédé de fabrication d'un tel moule Download PDF

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Publication number
EP0878252A1
EP0878252A1 EP98103795A EP98103795A EP0878252A1 EP 0878252 A1 EP0878252 A1 EP 0878252A1 EP 98103795 A EP98103795 A EP 98103795A EP 98103795 A EP98103795 A EP 98103795A EP 0878252 A1 EP0878252 A1 EP 0878252A1
Authority
EP
European Patent Office
Prior art keywords
mold
feeder
sand
casting
box
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
Application number
EP98103795A
Other languages
German (de)
English (en)
Other versions
EP0878252B1 (fr
Inventor
Herbert Dipl.-Ing. Grolla
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.)
Heinrich Wagner Sinto Maschinenfabrik GmbH
Original Assignee
Heinrich Wagner Sinto Maschinenfabrik 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26036523&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0878252(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Heinrich Wagner Sinto Maschinenfabrik GmbH filed Critical Heinrich Wagner Sinto Maschinenfabrik GmbH
Publication of EP0878252A1 publication Critical patent/EP0878252A1/fr
Application granted granted Critical
Publication of EP0878252B1 publication Critical patent/EP0878252B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C21/00—Flasks; Accessories therefor

Definitions

  • the invention relates to a casting mold and a method for the production of a casting mold consisting of one of two Mold box halves formed mold box, the means for the Has transport on automatic molding machines and a bonded sand mold, which, if necessary, with cores and provided with a pouring funnel and a feeder is.
  • Casting molds with bound molding sands are either made with Molded boxes made of two mold box halves, this molding box is usually frame-shaped is formed and on two of its end faces with slats is provided with which he is on a roller conveyor automatic molding machine is transportable.
  • This molding box gives the bound sand mold in it the required strength so that this easily can be transported.
  • the sand for the mold can be clay-bound, which is an inexpensive reprocessing of the molding sand guaranteed.
  • boxless molds are known, which are dependent of the casting from a variety of items these molds are no longer clay-bound, but are chemically bound to be sufficient Strength for their handling and pourability to obtain.
  • These chemically bound sand forms require elaborate machines for producing the partial molds, the Cores as well as machines that turn these parts into one Put the mold together. Aside from the high apparatus There is another effort that must be made here Disadvantage in that the sand can only be reprocessed with great effort is. In addition to the expensive molding and assembly device represents a high cost factor.
  • boxless forms of green sand which consist of individual identical cuboid blocks are constructed, the part on two opposite sides of the mold cavity.
  • pouring spout as well as molded in the feeder.
  • These blocks will be then pushed against each other with their mold cavities, so that they complement and support each other.
  • the molding sand is shot from above, which means that they are in the shadow of the model Form areas do not get the same hardening as the remaining areas.
  • the feeder can also only be limited in form and also essentially only to the side of the actual mold cavity, which severely limits the quality of the feeder. By injecting the molding sand is also a great wear on models received what the procedure makes expensive.
  • Molding sand in molding boxes can not only be clay-bound but is also much cheaper in its manufacture.
  • the molding box only needs one half of the molding box placed separately on a model plate, then the molding box is filled with sand. After mechanical The mold half is finished compacting the molding sand. This then lies horizontally with the mold cavity turned upwards so that cores are inserted can.
  • the mold boxes are placed one above the other for casting, previously in the then upper mold box Mold opening and the feeder incorporated into the molding sand must become. This happens before turning the top one Molding box with rotating tools.
  • These mold boxes are then poured horizontally, which is disadvantageous here that for the feeder in the mold only a relatively small one Volume remains and also the supply of the ones below Mold parts are not always optimal.
  • the pouring funnel can be produced relatively easily, but prepares the training of the feeder problems, especially the Lucasr reduced the cross-section for shooting of the sand is available.
  • the Kunststoffr reduced the cross-section for shooting of the sand is available.
  • For casting aluminum such molds are less suitable, especially here large effective feeders are needed.
  • the invention has for its object to provide a mold a molding box that is a mold made of bound molding sand has to be trained so that this on automatically working Molding machines can be used and horizontally in the usual way can be manufactured at the post-processing the pouring funnel and feeder as well no additional feeders to be placed on the mold can be and at which also an effective Venting of the cores is guaranteed.
  • a Another object of the invention is a method to propose for the manufacture of such a mold.
  • This task is for a mold of the type mentioned Art solved according to the invention in that the molding box in Area of its divisional level over at least one Part of the length and width of one side of the molding box Recess has that in the region of the recess the pouring funnel and the feeder open and that the feeder is formed in the casting mold within the sand mold is.
  • the mold boxes for casting molds with bound molding sands can be made in a conventional way d. H. the frame of the molding box is placed on a model plate laid on, filled with sand and compacted. The Both mold box halves are made in the same way produced.
  • the difference to conventional mold boxes consists of the feeder and the pouring funnel no longer formed on the open side of the mold frame is on the upper half of the molding box, but that the opening in front of the pouring funnel as well as the feeder relocated to the division level of the two mold box halves is. This means that the casting of the casting mold no longer as is the case with conventional molds with mold boxes The case is horizontal, but standing.
  • the feeder and the pouring funnel can cast the mold box with no additional effort during production the mold can be molded with, so that any Post-processing is not necessary.
  • the mold is poured standing, usually remains above of the casting a sufficiently large space to the required To accommodate volume for the feeder. This relatively large distance also allows the feeder to do so train that the required hydrostatic pressure for the feed is received.
  • the cores with one end up through the Opening in the mold frame over the sand of the mold and if necessary, through the feeder to above the level of Pouring opening of the feeder arranged so that the core ventilation immediately over the pulled out ends of the core can be done.
  • the molding box has in the division level, in which the feeder and the pouring funnel are arranged is a recess which in cross section V- or Can be U-shaped. This is advantageous Pouring the casting material in increasing casting, the Pouring channel opens below the casting and over the gate connected to it.
  • a molded box is manufactured horizontally, i.e. H. the two halves of the molding box are made in the usual way produced, in contrast to the prior art Pouring funnel and the feeder right in the side of the opening of the molding box is also molded. Through this side The feeder as well as the pouring funnel can be arranged be produced in such a way that post-processing is no longer required.
  • the molding boxes are then opened arranged on a roller conveyor and in such a way that the mold cavity points upwards. In this situation the Cores inserted, then one half of the mold over the other is laid in a known manner. In connection the finished casting mold is then turned through 90 °, see above that this now with the pouring opening up on a another now generally narrower roller conveyor is transported further.
  • the molding box on the roller conveyor can remain.
  • the two halves of the molding box will be then separated in a known manner, turned and the Molding process of the mold begins anew.
  • the mold 1 to 4 is an embodiment of an inventive Casting mold 1 shown.
  • the mold 1 is made from two mold halves, each mold half having one Form frame 4, which on one side in the Molding plane has a V-shaped recess 5.
  • This V-shaped recess extends, in particular, from Fig. 4 can be seen over part of the width and Length of each mold box half 4.
  • the pouring funnel 6 is with connected to a pouring spout 10, which extends to below the Pouring cavity 11 extends and via gates 12 with the Pouring cavity 11 is connected.
  • two cores are in the casting cavity 13 inserted, which are provided with an extended end 14 are, which reaches through the feeder 9 and above of the feeder and the sand mold 8 ends. Because of this End 14, that above the food level and the sand mold ends up being an effective core vent as well Venting of the mold guaranteed.
  • the recess 5 in the two mold halves 1 and 2 is when they are assembled, V-shaped in cross section educated. It is also conceivable to have a U-shaped one here Provide cutout.
  • Each mold box half 4 is provided with running strips 15, with which the molding box on z.
  • For the Each half of the molding box is laid on the core Roller conveyor transported and that with the opening of the casting cavity 11 up. This makes it easy to insert of the cores possible without this, as is the case with the moldless molds is the case with special Funds must be kept.
  • These cores are in the half of the mold box inserted below while the other Mold box half on the lower horizontal only needs to be hung up. Following this the molding box is turned about its longitudinal axis by 90 °, so that the pouring funnel and the feeder are on top. The cast can then be done.
  • the molding box can also be shaped upright, the molding box not being removed from the roller conveyor needs to be. Only the molding sand is needed here including the manufactured casting laterally to be pushed out of the mold frame 4.
  • the embodiment 5 to 8 corresponds to the embodiment 1 to 4 with the difference that the feeder 9 is not, as in the embodiment 1 to 4, arranged within the sand mold 8 is and is only accessible via an opening 7, but that here the opening corresponds to the cross section of the feeder. Otherwise the arrangement of the cores is identical, here also the ends 14 of the cores 13 above the level of the maximum Level of the feeder 9 ends.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Mold Materials And Core Materials (AREA)
EP98103795A 1997-05-14 1998-03-04 Moule pour installation de moulage automatic et procédé de fabrication d'un tel moule Expired - Lifetime EP0878252B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19720056A DE19720056A1 (de) 1997-05-14 1997-05-14 Gießform für automatisch arbeitende Formanlagen sowie Verfahren zur Herstellung der Gießformen
DE19720056 1997-05-14
US09/256,169 US6244328B1 (en) 1997-05-14 1999-02-23 Mold for automatically working mold systems and a process for the manufacture of the molds

Publications (2)

Publication Number Publication Date
EP0878252A1 true EP0878252A1 (fr) 1998-11-18
EP0878252B1 EP0878252B1 (fr) 2000-04-12

Family

ID=26036523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98103795A Expired - Lifetime EP0878252B1 (fr) 1997-05-14 1998-03-04 Moule pour installation de moulage automatic et procédé de fabrication d'un tel moule

Country Status (6)

Country Link
US (1) US6244328B1 (fr)
EP (1) EP0878252B1 (fr)
AT (1) ATE191664T1 (fr)
DE (2) DE19720056A1 (fr)
ES (1) ES2145634T3 (fr)
PL (1) PL326238A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001028712A1 (fr) * 1999-10-15 2001-04-26 Loramendi, S.A. Procede de coulee de metaux dans un moule de sable vert et dispositif d'obturation du canal de coulee

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100676569B1 (ko) * 1999-07-02 2007-01-30 인터내셔널 엔진 인터렉츄얼 프로퍼티 캄파니, 엘엘씨 주조 방법과 주조기
JP3592251B2 (ja) * 2001-03-30 2004-11-24 日信工業株式会社 還元鋳造方法、還元鋳造装置及びこれに用いる成形型
DE102006058145A1 (de) 2006-12-09 2008-06-12 Ksm Castings Gmbh Verfahren zum Verarbeiten, insbesondere Gießen, eines Materials, Gießform zur Durchführung des Verfahrens und nach dem Verfahren bzw. in der Gießform hergestellte Gegenstände
US8387678B1 (en) * 2011-11-18 2013-03-05 General Electric Company Sensor aided direct gating for metal casting
CN105382205B (zh) * 2015-12-07 2017-06-13 大连金河铸造有限公司 油箱铸件铸造的改进工艺
CN107999699B (zh) * 2018-01-24 2023-06-02 江西力天机械有限公司 一种消失模铸造模具
CN108405813A (zh) * 2018-05-10 2018-08-17 江苏凌特精密机械有限公司 一种中间壳类产品模具
CN110681846A (zh) * 2019-09-30 2020-01-14 山西江淮重工有限责任公司 铝合金异形结构件卧式造型立式差压浇注装置及浇注方法
PL241319B1 (pl) * 2020-11-02 2022-09-05 Lothar Thoni Forma odlewnicza hybrydowa i sposób wykonania formy odlewniczej hybrydowej zwłaszcza do wytwarzania odlewów ze stopów metali

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652657A1 (de) * 1975-11-21 1977-06-02 John Workman Giesserei-formvorrichtung
JPS55106658A (en) * 1979-02-09 1980-08-15 Hitachi Metals Ltd Mold of pipe joint
JPS55106656A (en) * 1979-02-09 1980-08-15 Hitachi Metals Ltd Mold
WO1991012104A1 (fr) * 1990-02-16 1991-08-22 Combustion Engineering, Inc. Methode de moulage a coulee verticale

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579494A1 (fr) * 1985-03-28 1986-10-03 Fouquet Jean Paul Procede de coulee par gravite d'aciers allies et d'alliages dans une empreinte permanente, permettant la fabrication d'un produit metallique fini du type lingot, de sante radio et en faible quantite

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652657A1 (de) * 1975-11-21 1977-06-02 John Workman Giesserei-formvorrichtung
JPS55106658A (en) * 1979-02-09 1980-08-15 Hitachi Metals Ltd Mold of pipe joint
JPS55106656A (en) * 1979-02-09 1980-08-15 Hitachi Metals Ltd Mold
WO1991012104A1 (fr) * 1990-02-16 1991-08-22 Combustion Engineering, Inc. Methode de moulage a coulee verticale

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 004, no. 154 (M - 038) 28 October 1980 (1980-10-28) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001028712A1 (fr) * 1999-10-15 2001-04-26 Loramendi, S.A. Procede de coulee de metaux dans un moule de sable vert et dispositif d'obturation du canal de coulee
US6659163B2 (en) 1999-10-15 2003-12-09 Loramendi, S.A. Method for metal casting in green-sand molds and casting gutter sealing device

Also Published As

Publication number Publication date
ATE191664T1 (de) 2000-04-15
ES2145634T3 (es) 2000-07-01
DE59800122D1 (de) 2000-05-18
EP0878252B1 (fr) 2000-04-12
US6244328B1 (en) 2001-06-12
DE19720056A1 (de) 1998-11-19
PL326238A1 (en) 1998-11-23

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