EP0802839B1 - Procede pour introduire des noyaux dans un moule de coulee - Google Patents

Procede pour introduire des noyaux dans un moule de coulee Download PDF

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Publication number
EP0802839B1
EP0802839B1 EP96924883A EP96924883A EP0802839B1 EP 0802839 B1 EP0802839 B1 EP 0802839B1 EP 96924883 A EP96924883 A EP 96924883A EP 96924883 A EP96924883 A EP 96924883A EP 0802839 B1 EP0802839 B1 EP 0802839B1
Authority
EP
European Patent Office
Prior art keywords
core
cores
bracing
core group
template
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
EP96924883A
Other languages
German (de)
English (en)
Other versions
EP0802839A1 (fr
Inventor
Quy Dung Dang
Gerd Pawera
Jürgen ACHENBACH
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.)
Eisenwerk Bruehl GmbH
Original Assignee
Eisenwerk Bruehl 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 Eisenwerk Bruehl GmbH filed Critical Eisenwerk Bruehl GmbH
Publication of EP0802839A1 publication Critical patent/EP0802839A1/fr
Application granted granted Critical
Publication of EP0802839B1 publication Critical patent/EP0802839B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/103—Multipart cores

Definitions

  • the invention relates to a method for introducing cores in a mold.
  • US-A-4,273,182 describes a process for forming a core package described, in which the individual core parts without use corresponding gauges by means of interlocking interlocking Core parts put together to form a core package will.
  • the core package is then strapped using a strapping machine put a plastic strap, its superimposed Ends are inextricably linked.
  • the core package fixed in this way is then placed in the mold inserted. When pouring the plastic tape evaporates under the heat of the molten metal.
  • the invention is based on the object of a method to create a simplification to introduce the Cores in such a mold and expensive Avoids post-processing.
  • this object is achieved by that the individual cores are placed in a setting gauge, that the contiguous, forming a core group Cores in the setting gauge using clamping and holding devices be connected to each other that the connected Core group dipped in a size bath and dried and that the dried core group in the mold used and then the tension is released.
  • the method is used to advantage that at least some, provide cores forming a core group with core brands are that can be designed so that they are on the one hand touch each other and on the other hand also the protrude from the actual forming core surface and corresponding Form contact surfaces so that the cores through here a corresponding, for example frame-shaped clamping means braced against each other over their contact surfaces and can be fixed against each other and thus as one Unit can be handled. It is useful if the contacting contact surfaces of the cores in front of the Insert so-called green glue into the setting gauge to improve cohesion.
  • this core group Becomes this core group according to the inventive method dipped in a sizing bath and the sizing after dried, then the unavoidable relatively thin gaps in the area of the contact surfaces adjacent single cores filled in by the size, so that the formation of burrs is avoided becomes.
  • the core group is then created with the help of the clamping and Holding means transported further and into the prepared Casting mold, for example a lower case, used, so that after releasing the tension the top box is put on and performed the casting process in the usual way can be.
  • the method according to the invention allows, depending on the design of the casting to be made, a single one core group composed of several individual cores or also one out of several, a core assembly for a casting mold forming core group as a core sentence about the clamping and To connect holding means with each other and in tension Condition of the individual treatment steps until insertion to perform in the mold. That is the possibility given even very complex core groups in this way to handle. It is also possible for individual core parts Approaches to be provided, which were previously individually in a mold were inserted in the manufacture of the cores with to connect the associated core, for example to glue via an adhesive connection, so that this on complicated in its structure, from two or more Share composed single core nevertheless in the Core group is included, provided with the size coating and then into the mold can be inserted. The additional required so far Inlay work that always leads to the formation of burrs in the Transition area between the single core and the associated one Basic core is avoided, because by the Sizing the entire core group the approach between the core approach and the associated basic core a ridge formation avoids.
  • the method according to the invention is based on a flow diagram explained in more detail below.
  • the individual cores 1, 2, 3 and 4 are then in the process step I inserted into a setting gauge 5, through which the mutual assignment of cores 1, 2, 3 and 4 fixed is.
  • the cores 1, 2, 3 and 4 are on their outside facing side in the usual way with core marks 6, which are now designed to be outward-looking Have contact surface, which in turn is expedient is designed so that adjacent contact surfaces 7 aligned.
  • the core group combined into a unit 10 can now in a process step III via the manipulator 8.1, the clamping and holding means 8 on the gripping cam 8.2 recorded, transported and in a size bath 11 to be dipped.
  • the clamping and holding means 8 can also be turned by the manipulator 8.1, so that excess size drips off after diving can. Since the frame-shaped clamping and Holding means 8 the cores summarized as a core group 1, 2, 3 and 4 holds only in the area of the core brands later when pouring the the appropriate areas of the Casting molding surfaces of the core group completely coated with sizing, with the column in particular between the individual adjacent cores 1, 2, 3 and 4 are closed by the size and thus the formation of cast burrs is avoided.
  • step IV must nummore the unit 10 is fed to a drying device 16 in which the size coat is dried, for example by a combined microwave and Air drying process.
  • manipulator 8.1 in a movable furnace support 12 is filed.
  • the furnace support 12 has two opposite Pages cheeks 13 on with their inward clamping surfaces 14 opening upwards are inclined towards each other.
  • On the clamping and holding device 8 are on both sides of the gripping cam 8.2 this outstanding clamping cams 15 arranged with one of the Provide clamping surface 14 correspondingly inclined counter surface are so that when the unit 10 is placed in the furnace support 12 the clamping and holding means 8 between the side cheeks 13 is firmly clamped. Then the manipulator 8.1 be solved and the entire arrangement in the drying facility 16 can be retracted.
  • the unit 10 summarized core group from the furnace support 12 of the Manipulator 8.1 highlighted and now in the next step V in the lower box 17 or an assembly gauge a prepared mold. Only now the frame-shaped clamping and holding means 8 from the core group solved and removed. Then in the following Process step VI of the upper box 18 on the lower box 17 placed and firmly connected to it, so that subsequently the casting process can take place.
  • Another advantage of the method according to the invention is in that the cycle times when casting the finished molds can be increased since those for inserting cores required time is significantly reduced.
  • Another advantage of the method according to the invention is also in that greater flexibility with regard to given on customer requirements or further developments is.
  • Formation of breakthroughs and then anyway must have core brands so that the core brands that are required anyway are directly related to each other touch so that tensioning with the appropriate design the core brands on the outside over a preferably frame-shaped clamping and holding means is possible.
  • the method according to the invention also allows, however a common clamping and holding device two or more related core groups to a complete Summarize core sentence without the individual core groups even through an appropriate arrangement of approaches are to be brought into contact with each other.
  • the procedure is therefore also possible if individual core groups with regard to their core brands none have a common clamping plane.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Devices For Molds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Claims (3)

  1. Procédé pour l'introduction de noyaux dans un moule de coulée, caractérisé en ce que les noyaux individuels (1, 2, 3, 4) sont introduits dans un gabarit de positionnement (5), en ce que les noyaux (1, 2, 3, 4) contigus formant un groupe de noyaux sont reliés entre eux dans le gabarit de positionnement (5) par l'intermédiaire d'un moyen de serrage et de maintien (8), en ce que le groupe de noyaux reliés entre eux est trempé dans un bain d'enduit (11) et séché, en ce que le groupe de noyaux séché est introduit dans le moule de coulée (17, 18), et en ce que le moyen de serrage est ensuite retiré.
  2. Procédé selon la revendication 1, caractérisé en ce que plusieurs groupes de noyaux constituant un équipement de noyaux pour un moule de coulée sont reliés entre eux en tant jeu de noyaux par l'intermédiaire d'un moyen de serrage et de maintien (8), traités, et introduits dans le moule de coulée.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les surfaces d'application (9.1) des noyaux (1, 2, 3, 4), qui sont en contact entre elles, sont munies de colle avant l'introduction dans le gabarit de positionnement (5).
EP96924883A 1995-10-27 1996-07-04 Procede pour introduire des noyaux dans un moule de coulee Expired - Lifetime EP0802839B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19540023A DE19540023A1 (de) 1995-10-27 1995-10-27 Verfahren zum Einbringen von Kernen in eine Gießform
DE19540023 1995-10-27
PCT/EP1996/002943 WO1997016271A1 (fr) 1995-10-27 1996-07-04 Procede pour introduire des noyaux dans un moule de coulee

Publications (2)

Publication Number Publication Date
EP0802839A1 EP0802839A1 (fr) 1997-10-29
EP0802839B1 true EP0802839B1 (fr) 1998-12-02

Family

ID=7775929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96924883A Expired - Lifetime EP0802839B1 (fr) 1995-10-27 1996-07-04 Procede pour introduire des noyaux dans un moule de coulee

Country Status (9)

Country Link
US (1) US6003588A (fr)
EP (1) EP0802839B1 (fr)
JP (1) JP3894569B2 (fr)
CN (1) CN1131746C (fr)
AT (1) ATE173965T1 (fr)
DE (2) DE19540023A1 (fr)
DK (1) DK0802839T3 (fr)
ES (1) ES2127647T3 (fr)
WO (1) WO1997016271A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6533020B2 (en) * 2001-06-11 2003-03-18 General Motors Corporation Casting of engine blocks
US6527039B2 (en) * 2001-06-11 2003-03-04 General Motors Corporation Casting of engine blocks
US6682315B2 (en) * 2001-11-28 2004-01-27 Caterpillar Inc Axial piston pump barrel with a cast high pressure collection cavity
US20040159985A1 (en) * 2003-02-18 2004-08-19 Altoonian Mark A. Method for making ceramic setter
CN107598132B (zh) * 2017-09-28 2023-07-21 苏州明志科技股份有限公司 用于砂芯组装的注胶工作台

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4273182A (en) * 1979-12-07 1981-06-16 Ford Motor Company Core assembly and the method of making and using such assembly
JPS6213240A (ja) * 1985-07-10 1987-01-22 Kiriyuu Kikai Kk 中子の組付け方法および組付中子
DE3526265A1 (de) * 1985-07-23 1987-02-05 Hottinger Adolf Giesserei Kern- bzw. masken-paketiermaschine
JPS62230454A (ja) * 1986-03-31 1987-10-09 Mazda Motor Corp マニホ−ルド用鋳型
DE3618703A1 (de) * 1986-06-04 1987-12-10 Bruehl Eisenwerk Verfahren zur herstellung von kernen fuer giessereizwecke und einrichtung zur durchfuehrung des verfahrens
DE3855170T2 (de) * 1987-04-14 1996-10-17 Northrop Grumman Corp Herstellungssystem unter Verwendung von dreidimensionalen graphischen Modellen
DE4322181A1 (de) * 1993-06-29 1995-01-12 Hottinger Adolf Masch Vorrichtung und Verfahren zum Greifen eines Gießereikerns, insbesondere eines Sohlenkerns

Also Published As

Publication number Publication date
JP3894569B2 (ja) 2007-03-22
DE59600907D1 (de) 1999-01-14
WO1997016271A1 (fr) 1997-05-09
CN1131746C (zh) 2003-12-24
CN1166801A (zh) 1997-12-03
DE19540023A1 (de) 1997-04-30
ES2127647T3 (es) 1999-04-16
EP0802839A1 (fr) 1997-10-29
JPH10511315A (ja) 1998-11-04
ATE173965T1 (de) 1998-12-15
US6003588A (en) 1999-12-21
DK0802839T3 (da) 1999-08-16

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