WO1995015231A1 - Vorrichtung und verfahren zur herstellung giessfertiger masken bzw. kernpakete - Google Patents
Vorrichtung und verfahren zur herstellung giessfertiger masken bzw. kernpakete Download PDFInfo
- Publication number
- WO1995015231A1 WO1995015231A1 PCT/DE1994/001421 DE9401421W WO9515231A1 WO 1995015231 A1 WO1995015231 A1 WO 1995015231A1 DE 9401421 W DE9401421 W DE 9401421W WO 9515231 A1 WO9515231 A1 WO 9515231A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- core
- tool
- shooting
- tools
- transfer
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C13/00—Moulding machines for making moulds or cores of particular shapes
- B22C13/08—Moulding machines for making moulds or cores of particular shapes for shell moulds or shell cores
-
- 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 device for producing ready-to-cast masks or core packs, with at least two linearly arranged core shooting machines or shooting stations, the core shooting machines each having two at least slightly different tool sets, consisting of an upper part and a lower part, and identical Transfer parts serve on the one hand as a tool lower part of the first core shooting machine and on the other hand for transporting the core or core package on a transfer path through the device. Furthermore, the invention relates to a method for producing ready-to-cast masks or core packages with a device according to the invention.
- the present invention relates to the field of foundry technology.
- foundry cores or molds are usually manufactured in separate parts, brought together and connected to one another to form a casting mold or a core package. These core packages are then filled with molten metal to produce, for example, a metallic workpiece, the series of core packages to be filled with molten metal passing through the production line in succession.
- Devices for producing core packages of the type in question are already known from numerous publications. Reference is made to DE-OS 23 04 564 only by way of example. It is also known from practice to manufacture the cores to be connected to form a core package in a production line with a plurality of core shooting machines or shooting stations, the core package being added to each shooting station Core is supplemented. For this purpose, the cores are placed on a transfer part passing through the individual shooting stations, this transfer part mostly serving at the same time as the lower tool part of the first shooting station.
- the core sands used to manufacture the core packages are always mixed with binding agent, as a result of which the tools - tool upper part and tool lower part - are considerably contaminated. Accordingly, the tools are to be cleaned after a certain number of cycles and, for this purpose, exchanged at the shooting stations.
- a tool change is extremely problematic in practice, since the tools of the individual shooting stations and thus the cores manufactured there are exactly matched to one another.
- the contours of the cores of a tool set to be stacked are coordinated with one another in such a way that they lie positively against one another during stacking. If there were even the slightest deviations in the contours of the surfaces of the cores to be stacked which were to be stacked, such stresses would occur during stacking that the cores would break with the greatest probability.
- German patent application P 43 18 259.3-24 - this is a post-published state of the art - according to which the tools one tool set together, that is to say at the same time, can be exchanged for tools of a second tool set at all shooting stations.
- each core shooting machine is assigned at least one parking station for the transfer part with the cores located thereon and that the parking station for receiving one can be removed from the transfer path when the tool is changed for the first time and in the event of a second change Tool change serves again in the transfer part which can be inserted into the transfer path, so that transfer parts carrying only cores or core packages made with the tool set in use are on the transfer path and in the parking stations only cores or core packages made with the tool set not in use load-bearing transfer parts.
- a parking station for the transfer part is assigned to each core shooting machine in the alternative device, so that when the tool is changed for the first time - changing to the second tool set - the cores or core packages currently located at the respective shooting stations - instead of being disposed of - in the parking station will be spent. Only when the tool is changed for the first time is the production line then restarted in the empty state. If, on the other hand, a previously replaced and cleaned tool set is replaced again, the cores or transfer parts then located in the production line with the cores located thereon are brought into the parking station and the parked cores, those with the cleaned and now Tool sets that are to be exchanged have already been manufactured can be introduced into the transfer path again at appropriate points.
- the present invention is therefore based on the object of specifying a device of the type mentioned at the outset and a corresponding method, according to which rejects cores caused by the tool change and start-up times for "filling" the production line are effectively avoided with the simplest construction and the smallest space requirement.
- the device according to the invention achieves the above object by the features of patent claim 1.
- the device according to the invention is designed in such a way that the tools in use of a first tool set can be exchanged for tools of a second tool set on the first core shooting machine, and after the transfer part with the first core has left the first core shooting station, that the tools in use in the first tool set can be exchanged for tools in the second tool set on the second core shooting machine, after the transfer part with the first and second core has left the second core shooting station, etc., to change the last tool set at the last core shooting station, so that only a core made with the same tool set can be deposited on a transfer part.
- a transfer part covered with a first core is covered or completed at each core shooting station with further cores which are produced with tools from the same tool set.
- the tool of the tool set to be changed is only exchanged for a tool of the other tool set when the core required for the packaging has been produced and stacked on the transfer part or the other cores.
- the transfer path extending linearly through the shooting stations is formed by the rollers carrying the transfer parts.
- the rollers can reach under the transfer parts or corresponding overhangs of the transfer parts from the side.
- the method according to the invention achieves the above object by the features of claim 5.
- This is a method for producing ready-to-cast masks or core packages, a first core being shot at a first core shooting station and on the transfer part serving as the lower tool part of the first core shooting machine next shooting station, a second core shot at a second core shooting station, the lower tool part of the second shooting station is lowered, the transfer part with the first core is placed under the upper tool part of the second shooting station and the second core is placed on the first core on the transfer part, etc.
- the following further method steps are provided according to the invention:
- the tools of a first tool set in use are exchanged for tools of a second tool set on the first core shooting machine after the transfer part with the first core has left the first core shooting station.
- the tools in use in the first tool set are then exchanged for tools in the second tool set on the second core shooting machine after the transfer part with the first and second core has left the second core shooting station. This process is repeated in accordance with the number of core shooting stations provided, namely until the last tool set at the last core shooting station has been changed, so that only cores which are produced with tools of the same tool set are placed on a transfer part.
- the single figure shows a linearly arranged core shooting system with a total of eight core shooting machines 1 or shooting stations, wherein the core shooting machines 1 have two tool sets 4, each consisting of an upper part 2 and a lower part 3, which are at least slightly different, and identical transfer parts 5 serve on the one hand as the lower tool part 2 of the first core shooting machine 1 and on the other hand as for the transport of the core 6 or core package on a transfer path 7 through the device.
- the tools 2, 3 in use of a first tool set 4a are exchanged here for tools 2, 3 of a second tool set 4b on the first core shooting machine 1, specifically after the transfer part 5 with the first core 6 leaves the first core shooting station Has.
- the tools 2, 3 of the first tool set 4a in use are then exchanged for tools 2, 3 of the second tool set 4b on the second core shooting machine 1, specifically also after the transfer part 5 with the first and second core 6 the second Leave the core shooting station Has.
- This process is repeated up to the last core shooting station, namely until the tools 2, 3 of the tool set 4 to be exchanged at the last core shooting station are changed, so that cores 6 manufactured exclusively with the same tool set 4 can be deposited on a transfer part 5 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002174551A CA2174551C (en) | 1993-12-03 | 1994-12-01 | Installation and method for producing ready-to-use casting shells or core assemblies |
EP95902034A EP0731741B1 (de) | 1993-12-03 | 1994-12-01 | Vorrichtung und verfahren zur herstellung giessfertiger masken bzw. kernpakete |
US08/652,498 US5711361A (en) | 1993-12-03 | 1994-12-01 | Method for producing ready-to-use casting shells or core assemblies |
JP7515334A JP2977094B2 (ja) | 1993-12-03 | 1994-12-01 | 鋳造用シェルすなわち鋳造用シェル組立体の製造装置及び製造方法 |
DE59403412T DE59403412D1 (de) | 1993-12-03 | 1994-12-01 | Vorrichtung und verfahren zur herstellung giessfertiger masken bzw. kernpakete |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4341122.3 | 1993-12-03 | ||
DE19934341122 DE4341122C2 (de) | 1993-06-02 | 1993-12-03 | Vorrichtung und Verfahren zur Herstellung gießfertiger Masken bzw. Kernpakete |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995015231A1 true WO1995015231A1 (de) | 1995-06-08 |
Family
ID=6504033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1994/001421 WO1995015231A1 (de) | 1993-12-03 | 1994-12-01 | Vorrichtung und verfahren zur herstellung giessfertiger masken bzw. kernpakete |
Country Status (7)
Country | Link |
---|---|
US (1) | US5711361A (de) |
EP (1) | EP0731741B1 (de) |
JP (1) | JP2977094B2 (de) |
CA (1) | CA2174551C (de) |
DE (1) | DE59403412D1 (de) |
ES (1) | ES2105875T3 (de) |
WO (1) | WO1995015231A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19534984C1 (de) * | 1995-09-20 | 1996-08-14 | Adolf Hottinger Kg | Verfahren zur Qualitätskontrolle in Kern- oder Maskenschießmaschinen und Vorrichtung zum Kern- oder Maskenschießen |
DE19535337C2 (de) | 1995-09-22 | 1999-05-20 | Adolf Hottinger Kg | Verfahren zur Qualitätskontrolle bei der Herstellung gießfertiger Masken oder Kernpakete |
CA2270612A1 (en) * | 1996-11-04 | 1998-05-14 | Hottinger Maschinenbau Gmbh | Facility and method for producing cast shells or cast core packs |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2304564A1 (de) * | 1973-01-31 | 1974-08-08 | Cobomat Apparatebau Gmbh | Vorrichtung zur automatischen herstellung von formen und kernen fuer giessereizwecke |
DE4318259C1 (de) * | 1993-06-02 | 1994-02-17 | Hottinger Adolf Masch | Vorrichtung und Verfahren zur Herstellung gießfertiger Masken bzw. Kernpakete |
DE4334857C1 (de) * | 1993-10-13 | 1994-10-13 | Hottinger Adolf Masch | Vorrichtung zum Kernpaketieren |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4100961A (en) * | 1976-11-18 | 1978-07-18 | Acme-Cleveland Corporation | Foundry molding machine |
DE3405420A1 (de) * | 1983-11-08 | 1985-05-15 | Rheinische Maschinenfabrik & Eisengiesserei Anton Röper GmbH & Co KG, 4060 Viersen | Vorrichtung zum wechseln von werkzeugen in giessereimaschinen |
DE3422687C1 (de) * | 1984-06-19 | 1985-06-13 | Adolf Hottinger, Gießerei und Maschinenbau GmbH, 6800 Mannheim | Kern- und Maskenschiessmaschine |
US4757855A (en) * | 1987-04-02 | 1988-07-19 | Roberts Corporation | Method and apparatus for loading and unloading tooling from a foundry machine |
US4832108A (en) * | 1987-04-02 | 1989-05-23 | Robert Corporation | Method and apparatus for handling tooling within a foundry machine |
US5072775A (en) * | 1988-07-18 | 1991-12-17 | Equipment Merchants International, Inc. | Core blowing machine |
FR2643579B1 (fr) * | 1989-02-24 | 1993-12-31 | Kuhn Sa | Machine a tirer des noyaux de fonderie |
DE4006176A1 (de) * | 1990-02-28 | 1991-09-05 | Hottinger Adolf Masch | Verfahren und vorrichtung zum herstellen von kernen fuer giessereizwecke |
-
1994
- 1994-12-01 JP JP7515334A patent/JP2977094B2/ja not_active Expired - Lifetime
- 1994-12-01 US US08/652,498 patent/US5711361A/en not_active Expired - Fee Related
- 1994-12-01 CA CA002174551A patent/CA2174551C/en not_active Expired - Fee Related
- 1994-12-01 DE DE59403412T patent/DE59403412D1/de not_active Expired - Fee Related
- 1994-12-01 EP EP95902034A patent/EP0731741B1/de not_active Expired - Lifetime
- 1994-12-01 ES ES95902034T patent/ES2105875T3/es not_active Expired - Lifetime
- 1994-12-01 WO PCT/DE1994/001421 patent/WO1995015231A1/de active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2304564A1 (de) * | 1973-01-31 | 1974-08-08 | Cobomat Apparatebau Gmbh | Vorrichtung zur automatischen herstellung von formen und kernen fuer giessereizwecke |
DE4318259C1 (de) * | 1993-06-02 | 1994-02-17 | Hottinger Adolf Masch | Vorrichtung und Verfahren zur Herstellung gießfertiger Masken bzw. Kernpakete |
DE4334857C1 (de) * | 1993-10-13 | 1994-10-13 | Hottinger Adolf Masch | Vorrichtung zum Kernpaketieren |
Also Published As
Publication number | Publication date |
---|---|
JP2977094B2 (ja) | 1999-11-10 |
EP0731741B1 (de) | 1997-07-16 |
ES2105875T3 (es) | 1997-10-16 |
CA2174551A1 (en) | 1995-06-08 |
CA2174551C (en) | 2000-04-25 |
DE59403412D1 (de) | 1997-08-21 |
JPH09500061A (ja) | 1997-01-07 |
US5711361A (en) | 1998-01-27 |
EP0731741A1 (de) | 1996-09-18 |
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