EP3233333A1 - Metallspritzdüse zum spritzgiessen einer flüssigen metall-komponente - Google Patents
Metallspritzdüse zum spritzgiessen einer flüssigen metall-komponenteInfo
- Publication number
- EP3233333A1 EP3233333A1 EP15822910.4A EP15822910A EP3233333A1 EP 3233333 A1 EP3233333 A1 EP 3233333A1 EP 15822910 A EP15822910 A EP 15822910A EP 3233333 A1 EP3233333 A1 EP 3233333A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- nozzle head
- head
- metal
- metal spray
- 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
Links
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
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2023—Nozzles or shot sleeves
-
- 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
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2038—Heating, cooling or lubricating the injection unit
Definitions
- the invention relates to a metal spray nozzle for injection molding of a liquid metal component, with a nozzle tube which forms a melt channel and which can be heated by means of at least one nozzle tube heater, and with a nozzle head, the at least one nozzle opening for the
- molten metal in an injection molding tool.
- a component to be manufactured either consist entirely of metal, but alternatively it is also possible to use a
- a prefabricated component which may for example consist of plastic.
- a nozzle for spraying of metal which comprises a single nozzle opening, which can be closed by means of a needle valve.
- the nozzle opening is formed in a nozzle head, which can be cooled by means of a cooling device, so that the metal located in the sprue area solidifies and can be liquefied again by heating in a later process step.
- the invention has for its object to provide a metal spray nozzle of the type mentioned, which is adaptable in a simple manner to different requirements with respect to the components to be produced.
- a metal spray nozzle with the features of claim 1. It is provided that the nozzle head is kept interchangeable and that in the nozzle head a plurality of branch channels are formed, each of which opens into a nozzle opening, wherein in the nozzle head at least one heating element is integrated.
- the nozzle tube of the metal spray nozzle which forms a melt channel, does not form an integral part with the nozzle head, but instead stores the nozzle head interchangeably and, in particular, attaches it to the nozzle tube. In this way, it is possible by replacing the nozzle head, the number of Nozzle openings and also to adjust their relative position to the respective injection requirements.
- At least one heating element is integrated in the nozzle head, which is preferably an electrical resistance heating element.
- heating channels can also be provided which are flowed through by a hot fluid and in particular a hot liquid.
- the integrated in the nozzle head heating elements ensure that the molten metal to a predetermined
- Temperature is heated or held on this. If relatively high temperatures are desired for special metal melts, this can be achieved by replacing the nozzle head with a correspondingly configured other nozzle head, which is ensured by the detachable attachment.
- the number of branch channels in the nozzle head is basically arbitrary, but it has in practice
- nozzle heads can have different shapes and sizes. Additionally or alternatively, nozzle heads with a different number and mutual arrangement of branch channels and nozzle openings can also be used.
- at least one of the heating elements is arranged in the region between the branch channels and / or near the nozzle openings. In this way it can be achieved that the metal melt located in the branch channels and, in particular, close to the nozzle openings can, if required, be heated rapidly to the desired temperature.
- At least one cooling element is arranged in the nozzle head.
- the cooling element can be, for example, one or more cooling channels through which a cooled fluid, in particular a fluid flows, or else an electrical cooling element, for example a Peltier element.
- each dual-channel is assigned at least one cooling element.
- the cooling elements can be used to cool down the molten metal in the region of the nozzle openings until it solidifies and thus thermally seals the metal injection nozzle. If the injection molding operation is to be continued, the cooling of the molten metal is interrupted and / or the molten metal is heated, whereby it liquefies again and the nozzle openings are released again.
- At least one of the cooling elements is arranged in the region between the branch channels and / or near the nozzle openings. In this way it is possible to ensure a very rapid solidification of the molten metal in the branch channels in the region of the nozzle openings.
- the heating elements and / or the cooling ⁇ elements individually and / or in groups are controlled.
- a distribution chamber is formed, from which branch off the branch channels. In this way it is ensured that the branch channels are all reliably filled with the molten metal.
- nozzle heads which face away from the nozzle tube.
- End face in which the nozzle openings are formed, have different geometric shapes.
- the end face of the distributor element facing away from the base part is flat and preferably formed at a right angle to the outlet direction of the molten metal.
- the end face of the nozzle head facing away from the nozzle tube has at least one protruding projection in which at least one nozzle opening is formed.
- the front side of the nozzle head is structured in a terraced manner and can thus be changed with respect to the flow paths of the molten metal within the nozzle head and also adapted to the geometry of a component to be sprayed.
- the invention thus describes a replaceable
- Nozzle head with preferably several branch channels for distributing the solder melt.
- the branch channels are integrated in one plane (2D) or in the space (3D)
- the nozzle head is preferably cooled to a temperature of 5 ° C to 100 ° C below the solidus temperature.
- the nozzle head is heated later preferably at 10 ° C to 150 ° C above the liquidus temperature.
- the sections may have different cross sections to the component to be sprayed.
- the front side of the nozzle head can be formed two-dimensionally as well as three-dimensionally.
- Fig. 1 is a partial longitudinal section through a metal spray nozzle according to the invention.
- Fig. 2 is a perspective enlarged sectional view of a nozzle head.
- FIG. 1 shows a longitudinal section through a metal spray nozzle 10 according to the invention.
- the metal spray nozzle 10 has a nozzle pipe 11, shown only partially, in which a melt channel 12 is formed, which is not shown in more detail. arranged way a molten metal is supplied, as indicated by the arrow S.
- staggered nozzle tube heaters 13 which are preferably electrical resistance heaters and which are surrounded by an outer jacket tube 17.
- the nozzle head 14 has a main body 15 in which on the side facing the nozzle tube 11 a recess 22 (see FIG. 2) is formed, into which the end of the nozzle tube 11 can be inserted under close fitting.
- a distributor chamber 19 is formed in the main body 15 of the nozzle head 14, which is aligned on its upstream side with the melt channel 12 of the nozzle tube 11 and passes smoothly into this.
- a plurality of heating elements 16 are arranged in the nozzle head 14, with which the metal melt located in the distribution chamber 19 can be heated or maintained at a predetermined temperature.
- Nozzle openings 25 or orifices are formed in the nozzle head 14 a plurality of cooling elements 24, for example in the form of coolant channels through which cooling fluid flows.
- the Cooling channels 24 can be controlled individually and / or in groups. As FIG. 2 shows, the cooling elements 24 are each formed on opposite sides of each nozzle opening 25.
- a central region 18 of the main body 15 of the nozzle head 14 is surrounded by the branch channels 20. In this lying between the branch channels 20 area 18 of the
- Nozzle head 14 another heating element 21 is disposed near the nozzle openings 25.
- the further heating element 21 may be, for example, an electrical resistance heater.
- a plurality of further cooling elements 23 are formed in the main body 15 of the nozzle head 14, which are preferably cooling channels through which cooling liquid flows.
- the cooling elements 23 can be controlled individually and / or in groups. The arrangement of the cooling elements 23 is made such that the branch channels 20 each
- the branch channels 20 and the nozzle openings 25 are dimensioned so that at the nozzle openings 25 each exits the same amount of molten metal.
- the nozzle head 14 is released from the nozzle tube 11 and replaced with another nozzle head, preferably a different number and a has another arrangement of branch channels and nozzle openings.
- the cooling elements 23 and 24 are activated in the nozzle head 14, wherein the molten metal, which is located in the region of the nozzle openings 25 within the branch channels 20, solidifies, whereby the metal spray nozzle 10 is opened.
- the cooling elements 23 and 24 are either turned off or reduced in their cooling effect and the heating elements 16 and in particular the other arranged near the nozzle openings 25 heating element 21 is activated, whereby the molten metal, which is located in the branch channels 20, is heated and liquefied, so that the metal spray nozzle is released again.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014018794.2A DE102014018794A1 (de) | 2014-12-19 | 2014-12-19 | Metallspritzdüse zum Spritzgießen einer flüssigen Metall-Komponente |
| PCT/EP2015/002519 WO2016096122A1 (de) | 2014-12-19 | 2015-12-15 | Metallspritzdüse zum spritzgiessen einer flüssigen metall-komponente |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3233333A1 true EP3233333A1 (de) | 2017-10-25 |
| EP3233333B1 EP3233333B1 (de) | 2020-02-05 |
Family
ID=55080078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15822910.4A Active EP3233333B1 (de) | 2014-12-19 | 2015-12-15 | Metallspritzdüse zum spritzgiessen einer flüssigen metall-komponente |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3233333B1 (de) |
| DE (1) | DE102014018794A1 (de) |
| WO (1) | WO2016096122A1 (de) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT106047B (de) * | 1924-09-24 | 1927-03-25 | Lanston Monotype Corp Ltd | Gießtopfdüse. |
| US3568256A (en) * | 1968-07-15 | 1971-03-09 | J & J Machine Co Inc | Plastic feeder head |
| DE2338458A1 (de) * | 1973-07-28 | 1975-02-06 | Karl Hehl | Mehrfachduese einer spritzgiessmaschine |
| DE3001017A1 (de) * | 1980-01-12 | 1981-07-16 | Heinz 7203 Fridingen Stegmeier | Heisskanalduese fuer eine spritzgussmaschine |
| US5522720A (en) * | 1994-10-24 | 1996-06-04 | Husky Injection Molding Systems Ltd. | Injector nozzle with pivotally movable surfaces |
| JP3991340B2 (ja) * | 1998-04-07 | 2007-10-17 | 株式会社十王 | 射出成形用ノズル |
| DE19942197A1 (de) * | 1999-09-03 | 2001-03-08 | Gerhard Schoch | Druckgiessmaschine mit Konusschleifkörper |
| DE102006026579A1 (de) * | 2006-06-08 | 2007-12-13 | Günther Heisskanaltechnik Gmbh | Spritzgussdüse, insbesondere Heißkanaldüse, zur Anordnung in einem Spritzgießwerkzeug |
| JP2009262215A (ja) * | 2008-04-28 | 2009-11-12 | Japan Steel Works Ltd:The | 金型装置及び射出成形方法 |
| DE102011050149A1 (de) * | 2010-11-17 | 2012-05-24 | Ferrofacta Gmbh | Druckgussdüse und Druckgussverfahren |
| DE102012009790A1 (de) | 2012-05-18 | 2013-11-21 | Gebr. Krallmann Gmbh | Verfahren zum Spritzgießen einer flüssigen Metall-Komponente und Düse zum SpritzenMetall |
-
2014
- 2014-12-19 DE DE102014018794.2A patent/DE102014018794A1/de not_active Withdrawn
-
2015
- 2015-12-15 EP EP15822910.4A patent/EP3233333B1/de active Active
- 2015-12-15 WO PCT/EP2015/002519 patent/WO2016096122A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014018794A1 (de) | 2016-06-23 |
| EP3233333B1 (de) | 2020-02-05 |
| WO2016096122A1 (de) | 2016-06-23 |
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