EP1017522B1 - Werkzeug insbesondere zum herstellen von kernen - Google Patents
Werkzeug insbesondere zum herstellen von kernen Download PDFInfo
- Publication number
- EP1017522B1 EP1017522B1 EP99938338A EP99938338A EP1017522B1 EP 1017522 B1 EP1017522 B1 EP 1017522B1 EP 99938338 A EP99938338 A EP 99938338A EP 99938338 A EP99938338 A EP 99938338A EP 1017522 B1 EP1017522 B1 EP 1017522B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- shells
- tool
- tool according
- core
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/005—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure using two or more fixed moulds
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
Definitions
- the invention relates to a tool, in particular for producing cores, which is arranged in a casting device and wherein the tool is first Has half-shells and second half-shells.
- Such tools are used, for example, in the so-called lost core technology used.
- cores are made from a low melting metal alloy in a low pressure process in a multiple Divisible Kokile poured. These cores are then in one Plastic injection molding machine inserted. The production of a plastic part is done by overmolding the core in the injection mold. After this When the overmolded core cools down, it melts out Introduction of appropriate heat of fusion. For this, the plastic part with the core immersed in a tempered bath and by inductive support the core melts evenly. The manufacture of the core takes place in a horizontally arranged pouring device. Because the core is one has a relatively high mass, a long cooling phase is required. This means that the cycle times are essentially influenced by the cooling times and may be significantly longer than the following Cycle times when molding the core with thermoplastic.
- the US 4,399,859 describes a tool with two casting units that run in parallel work.
- the units can be opened and closed together.
- the tools are arranged on appropriate guides for demoulding the outer as well as the inner core halves separate pushed and the manufactured parts are ejected from the tool away.
- the invention has for its object a tool, in particular for Manufacturing cores to create shorter cycle times and creates material-saving sprues.
- the main advantage of this invention is that it is in a single Core casting machine can be cast in parallel at least two cores at the same time can and thus the cycle time can be halved. So that the cores of one According to the invention, the tool can be removed from the gripper after casting, proceed in such a way that the pouring cores are cleared on both sides are and can be removed.
- each to connect parallel moving half-shells via connecting rods via connecting rods.
- the force is thus applied via these connecting rods, whereby a tolerance-compensating spring assembly can be provided.
- each casting half-shell with one or equipped with several ejectors.
- the core casting machine can with several casting units arranged side by side can be equipped. Let it through For example, 4 or 6 cores are produced in one work cycle.
- the core casting unit 2 consists of a carrier plate 10 which a casting machine, not shown, is attached. On this carrier plate 10 is a sprue distributor 11 is arranged with a mounted thereon Tool carrier 12.
- the casting half-shells are located on the tool carrier 12 13, 14, 15, 16 which are shown here in the closed state.
- the pouring half-shell 13 is with the casting half-shell 15 via connecting rods 17, 18th coupled.
- the casting half-shell 14 is with the casting half-shell 16 via the connecting rods 19, 20 coupled.
- the half-shells are in corresponding Tool holders 21, 22, 23, 24 attached.
- the tool holders 21, 24 are in turn arranged on supports 25, 26. Located on these carriers a multi-coupling 27, 28 for feeding the hydraulic line or Cooling liquids.
- the melt is supplied to the corresponding cavities via the feed lines 33, 34 35, 36 fed, after the cores solidify the tools open.
- FIG. 3 shows a top view of the tool in the closed state, here too, the same parts are provided with the same reference symbols.
- the half-shells 13, 14, 15, 16 are designed such that three at a time Cores can be poured.
- the core levels are staggered, and the connecting rods 17-20 on the beams 25, 26 with tolerance compensating Spring assemblies 41, 42 connected to machine tolerances or tolerances to compensate for temperature fluctuations.
- the connecting rods 17, 20 were shown.
- the connecting rods 18, 19 also have the tolerance-compensating ones Spring packs on.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Powder Metallurgy (AREA)
- Forging (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
- Figur 1
- ein Kerngießwerkzeug in geschlossenem Zustand
- Figur 2
- ein Kerngießwerkzeug in geöffnetem Zustand
- Figur 3
- eine Draufsicht auf das Kerngießwerkzeug in geschlossenem Zustand
Claims (9)
- Werkzeug insbesondere zum Herstellen von Gießkernen, welches in einer Gießeinrichtung angeordnet ist und wobei das Werkzeug erste Gießhalbschalen (13, 15) und zweite Gießhalbschalen (14, 16) aufweist und wobei zwei Trennebenen vorgesehen sind und zwei Gießeinheiten (43, 44) aus den ersten und zweiten Gießhalbschalen (13, 14, 15, 16) gebildet werden wobei die Trennebenen in Bewegungsrichtung der beiden Gießeinheiten (43, 44) hintereinander liegen, dadurch gekennzeichnet, daß der Kern (39, 40) nach dem Entfernen der Gießhalbschalen (13, 14, 15, 16) auf einem zylinderförmigen Ansatz des Werkzeugunterteils gehalten ist, wobei der Kern (39, 40) beidseitg freifahrbar ist.
- Werkzeug nach Anspruch 1, wobei die erste Gießhalbschale (13) der ersten Gießeinheit (43) mit der zweiten Gießhalbschale (15) der zweiten Gießeinheit (44) verbunden ist und die zweite Gießhalbschale (14) der ersten Gießeinheit (43) mit der zweiten Gießhalbschale (15) der zweiten Gießeinheit verbunden ist, wobei die Verbindung der jeweiligen Gießhalbschalen über Verbindungsstangen (17 - 20) erfolgt.
- Werkzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in der Verbindung der jeweiligen Gießhalbschalen ein toleranzausgleichendes Federpaket (41, 42) vorgesehen ist.
- Werkzeug nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß jede Gießhalbschale mit einem oder mehreren Auswerfern (29 - 32) ausgerüstet ist
- Werkzeug nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß jede Gießeinheit (43, 44) zum Gießen von zwei oder mehr Kernen (39, 40) aufgebaut ist.
- Werkzeug nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Kern aus Teilschalen (132, 133) besteht, welcher vor dem Umspritzen mit dem Kunststoff (135) zusammengesetzt wird.
- Werkzeug nach Anspruch 8, dadurch gekennzeichnet, daß die Teilschalen (132, 133) Halbschalen sind, welche einen Hohlraum (136) umschließen.
- Werkzeug nach Anspruch 8, dadurch gekennzeichnet, daß die Teilschalen (132, 133) miteinander verpreßt oder verquetscht sind oder nach Art einer Schnappverbindung (134) gegeneinander fixiert sind.
- Werkzeug nach Anspruch 8, dadurch gekennzeichnet, daß die Teilschalen eine Abstützung durch eine innere Struktur (137, 138, 139) aufweisen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833598 | 1998-07-25 | ||
DE19833598A DE19833598A1 (de) | 1998-07-25 | 1998-07-25 | Werkzeug insbesondere zum Herstellen von Kernen |
PCT/EP1999/005322 WO2000006322A1 (de) | 1998-07-25 | 1999-07-26 | Werkzeug insbesondere zum herstellen von kernen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1017522A1 EP1017522A1 (de) | 2000-07-12 |
EP1017522B1 true EP1017522B1 (de) | 2004-12-01 |
Family
ID=7875342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99938338A Expired - Lifetime EP1017522B1 (de) | 1998-07-25 | 1999-07-26 | Werkzeug insbesondere zum herstellen von kernen |
Country Status (5)
Country | Link |
---|---|
US (1) | US6336494B1 (de) |
EP (1) | EP1017522B1 (de) |
AT (1) | ATE283745T1 (de) |
DE (2) | DE19833598A1 (de) |
WO (1) | WO2000006322A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020046823A1 (en) * | 2000-10-24 | 2002-04-25 | Siemens Automotive Corporation | Method of accurately measuring volume of injected metal in forming core elements for lost core molding process |
US8212012B2 (en) | 2004-11-03 | 2012-07-03 | University Of Kansas | Novobiocin analogues having modified sugar moieties |
EP2100678B1 (de) * | 2008-03-11 | 2013-12-25 | Georg Fischer Automotive (Suzhou) Co. Ltd | Druckgusswerkzeug einer Druckgussmaschine |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1717254A (en) * | 1927-09-01 | 1929-06-11 | Polak Josef | Casting machine |
CH588315A5 (en) * | 1975-05-29 | 1977-05-31 | Hitachi Metals Ltd | Metal mould for mfr. of cores - with filler pieces attached to support plates to allow large moulds to be made with conventional machines |
GB1569382A (en) * | 1977-06-22 | 1980-06-11 | Inst Litya Akad Nauk Ukrain Ss | Low pressure die-casting machine |
US4399859A (en) * | 1980-11-13 | 1983-08-23 | Ford Motor Company | Diecasting assembly |
DE3618703A1 (de) * | 1986-06-04 | 1987-12-10 | Bruehl Eisenwerk | Verfahren zur herstellung von kernen fuer giessereizwecke und einrichtung zur durchfuehrung des verfahrens |
JPH06218735A (ja) * | 1993-01-27 | 1994-08-09 | Suzuki Motor Corp | 樹脂製中子 |
US6171094B1 (en) * | 1993-11-01 | 2001-01-09 | John W. Von Holdt | Universal mold |
JPH0938761A (ja) * | 1995-07-28 | 1997-02-10 | Sintokogio Ltd | 低融点金属中子の製造方法 |
-
1998
- 1998-07-25 DE DE19833598A patent/DE19833598A1/de not_active Withdrawn
-
1999
- 1999-07-26 AT AT99938338T patent/ATE283745T1/de not_active IP Right Cessation
- 1999-07-26 WO PCT/EP1999/005322 patent/WO2000006322A1/de active IP Right Grant
- 1999-07-26 EP EP99938338A patent/EP1017522B1/de not_active Expired - Lifetime
- 1999-07-26 DE DE59911190T patent/DE59911190D1/de not_active Expired - Fee Related
-
2000
- 2000-03-27 US US09/536,295 patent/US6336494B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1017522A1 (de) | 2000-07-12 |
US6336494B1 (en) | 2002-01-08 |
DE19833598A1 (de) | 2000-02-24 |
DE59911190D1 (de) | 2005-01-05 |
ATE283745T1 (de) | 2004-12-15 |
WO2000006322A1 (de) | 2000-02-10 |
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