DE102004050141B4 - Device for encapsulating semi-finished products in an injection mold - Google Patents
Device for encapsulating semi-finished products in an injection mold Download PDFInfo
- Publication number
- DE102004050141B4 DE102004050141B4 DE102004050141.6A DE102004050141A DE102004050141B4 DE 102004050141 B4 DE102004050141 B4 DE 102004050141B4 DE 102004050141 A DE102004050141 A DE 102004050141A DE 102004050141 B4 DE102004050141 B4 DE 102004050141B4
- Authority
- DE
- Germany
- Prior art keywords
- nozzle
- melt
- positioning
- semifinished product
- injection
- 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 - Fee Related
Links
- 239000011265 semifinished product Substances 0.000 title claims abstract description 42
- 238000002347 injection Methods 0.000 title claims abstract description 31
- 239000007924 injection Substances 0.000 title claims abstract description 31
- 239000000155 melt Substances 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2703—Means for controlling the runner flow, e.g. runner switches, adjustable runners or gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14967—Injecting through an opening of the insert
- B29C2045/14975—Injecting through an opening of the insert the injection nozzle penetrating through the insert
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14819—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being completely encapsulated
Abstract
Vorrichtung zum Umspritzen von Halbzeug (4) mit Kunststoffschmelze in einem Spritzgießwerkzeug (1, 2), mit wenigstens einer Einspritzdüse (9, 12) zum Einspritzen der Kunststoffschmelze in das Spritzgießwerkzeug (1, 2), dadurch gekennzeichnet, dass die Einspritzdüse eine erste Düse (9) sowie eine im Innern der ersten Düse (9) angeordnete, zweite Düse (12) aufweist, dass die Schmelzekanäle (16, 19) der beiden Düsen (9, 12) in einem Abstand von den einer Kavität (3) zugewandten Düsenöffnungen strömungstechnisch miteinander in Verbindung stehen, insbesondere über Öffnungen (17, 18) in der zweiten Düse (12), und dass die zweite Düse (12) aus der Düsenöffnung der ersten Düse (9) heraus verfahrbar ist, insbesondere zwischen einer hinteren, eingefahrenen, Position und einer vorderen ausgefahrenen Position, oder dass die zweite Düse (12) um eine feste, vorbestimmte Strecke aus der Düsenöffnung der ersten Düse (9) herausragt.Device for encapsulating semifinished product (4) with plastic melt in an injection mold (1, 2), with at least one injection nozzle (9, 12) for injecting the plastic melt into the injection mold (1, 2), characterized in that the injection nozzle has a first nozzle (9) and a second nozzle (12) arranged in the interior of the first nozzle (9), that the melt channels (16, 19) of the two nozzles (9, 12) at a distance from the nozzle openings facing a cavity (3) fluidically communicate with each other, in particular via openings (17, 18) in the second nozzle (12), and that the second nozzle (12) from the nozzle opening of the first nozzle (9) is movable out, in particular between a rear, retracted, Position and a front extended position, or that the second nozzle (12) protrudes by a fixed, predetermined distance from the nozzle opening of the first nozzle (9).
Description
Die Erfindung betrifft eine Vorrichtung zum Umspritzen von Halbzeug in einem Spritzgießwerkzeug.The invention relates to a device for encapsulating semi-finished products in an injection mold.
Das Umspritzen von Halbzeug in einem Spritzgießwerkzeug ist insofern problematisch, als durch den in das Spritzgießwerkzeug eingespritzten Schmelzestrom an plastifizierter Kunststoffschmelze eine Kraft auf das Halbzeug ausgeübt wird, die dazu führt, dass das Halbzeug mehr oder weniger weit in dem Spritzgießwerkzeug nach hinten verschoben wird. Dem kann durch geeignete Positionier- und Haltemittel nur bedingt entgegengewirkt werden bzw. es muss ein entsprechender Aufwand betrieben werden, um diesem Problem zu begegnen.The encapsulation of semi-finished in an injection mold is problematic in that a force is exerted on the semifinished product by the injected into the injection molding melt stream of plasticized plastic melt, which causes the semifinished product is moved more or less far in the injection mold to the rear. This can be counteracted by suitable positioning and holding means only conditionally or it must be a corresponding effort operated to address this problem.
Aus der
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, eine weitere Vorrichtung anzugeben, mit der ein Halbzeug in einem Spritzgießwerkzeug umspritzt werden kann, ohne dass eine nennenswerte Kraft auf das Halbzeug ausgeübt wird, so dass das Positionieren und Halten keinen großen Aufwand erfordert.Based on this, the present invention seeks to provide a further device with which a semifinished product can be encapsulated in an injection mold without a significant force is exerted on the semifinished product, so that the positioning and holding requires little effort.
Die Lösung dieser Aufgabe erfolgt durch eine Vorrichtung mit den Merkmalen des Patentanspruchs 1. Vorteilhafte Weiterentwicklungen und Ausgestaltungen der Erfindung finden sich in den Unteransprüchen.The solution of this object is achieved by a device having the features of claim 1. Advantageous developments and refinements of the invention can be found in the subclaims.
Dadurch, dass mittels der erfindungsgemäßen Vorrichtung das Halbzeug im Spritzgießwerkzeug im wesentlichen gleichzeitig von beiden Seiten angeströmt werden kann, kommt es nicht zu einer nennenswerten Kraft in eine bestimmte Richtung, verbunden mit der Gefahr der Verschiebung des Halbzeugs. Die Zufuhr von Schmelze kann von einer Seite erfolgen, wenn dort die Schmelze aufgeteilt wird und ein erster Strom an Kunststoffschmelze erzeugt wird, der dem Halbzeug im wesentlichen auf einer Seite des Halbzeugs zugeleitet wird, während der zweite Strom an Kunststoffschmelze durch geeignete Öffnungen im Halbzeug hindurch und/oder um dieses herum geleitet wird. Um das Halbzeug zu beiden Seiten mit Schmelze anströmen zu können, wird eine erfindungsgemäße Einspritzdüse vorgeschlagen, die eine erste Düse sowie eine im Innern der ersten Düse angeordnete, zweite Düse aufweist, und bei der die Schmelzekanäle der beiden Düsen in einem vorgebbaren Abstand von den dem Spritzgießwerkzeug zugewandten Düsenöffnungen strömungstechnisch miteinander in Verbindung stehen. Der ursprüngliche Schmelzestrom wird also in zwei Schmelzeströme aufgeteilt. Wenn die zweite Düse gegenüber der ersten verfahrbar ist, kann sie für den Einspritzvorgang aus der ersten Düse heraus in das Spritzgießwerkzeug hinein verfahren werden, bis sie durch Öffnungen im Halbzeug hindurchragt, während sie nach Beendigung des Einspritzen in die erste Düse zurückgefahren werden kann, so dass letztendlich ein Formteil mit einem Punktanguss entsteht. Dies gilt insbesondere bei Ausbildung der äußeren Düse als Heißkanaldüse. Gegebenenfalls können zusätzlich in das Spritzgießwerkzeug ein- und ausfahrbare Positioniernadeln vorgesehen werden, um das Halbzeug in der gewünschten Position innerhalb der Spritzgießwerkzeugs positionieren und halten zu können.The fact that the semifinished product can be flowed through in the injection mold substantially simultaneously from both sides by means of the device according to the invention, there is no significant force in a particular direction, associated with the risk of displacement of the semifinished product. The supply of melt can be done from one side, when there the melt is split and a first stream of plastic melt is produced, which is fed to the semifinished product substantially on one side of the semifinished product, while the second stream of plastic melt through suitable openings in the semifinished product and / or around it. In order to flow the semifinished product on both sides with melt, an injection nozzle according to the invention is proposed which has a first nozzle and arranged in the interior of the first nozzle, the second nozzle, and wherein the melt channels of the two nozzles at a predetermined distance from the Injection mold facing nozzle openings fluidly communicate with each other. The original melt stream is thus divided into two melt streams. When the second nozzle is movable relative to the first, it can be moved from the first nozzle into the injection mold until it projects through openings in the semifinished product, while it can be retracted after the end of the injection into the first nozzle that ultimately forms a molding with a Punktanguss. This is especially true when forming the outer nozzle as a hot runner nozzle. Optionally, in addition to the injection molding and retractable positioning needles may be provided to position the semi-finished in the desired position within the injection mold and hold.
Bedarfsweise kann die zweite Düse aber auch um eine bestimmte feste Strecke aus der ersten Düse herausragen, und zwar soweit, wie es für das Umspritzen des Halbzeugs erforderlich ist, d. h. soweit dass die zweite Düse in eine Öffnung im Halbzeug hineinragt. Das fertig umspritzte Halbzeug weist in diesem Bereich eine Öffnung entsprechend dem Durchmesser der zweiten Düse auf. Dies ist jedoch unproblematisch, wenn dieses Halbzeug bei der weiteren Verarbeitung in diesem Bereich überdeckt wird oder so in ein anderes Produkt eingebaut wird, dass diese Seite mit der Öffnung nicht sichtbar ist.If necessary, however, the second nozzle can also protrude from the first nozzle by a certain fixed distance, to the extent that is necessary for the encapsulation of the semifinished product, ie. H. so far that the second nozzle protrudes into an opening in the semifinished product. The finished overmoulded semifinished product has an opening in this area corresponding to the diameter of the second nozzle. However, this is not a problem if this semifinished product is covered during further processing in this area or installed in another product so that this side with the opening is not visible.
Nachfolgend soll die Erfindung anhand eines Ausführungsbeispiels und unter Bezugnahme auf die
Gemäß den
In der feststehenden Formhälfte
Zum Betätigen der Positionierungsnadeln
Von der Anlagefläche
Sind nun die Positionierungsnadeln
Ist das Werkzeug nun vollständig mit Schmelze gefüllt, können die Positionierungsnadeln
In einer vereinfachten Ausführungsform kann auch auf den Positionierungsmechanismus
Die Anzahl und Anordnung der erfindungsgemäßen Einspritzdüsen sowie die Anzahl und Anordnung der Positionierungsnadeln richten sich nach dem jeweiligen Anwendungsfall und liegen im Rahmen fachmännischen Könnens.The number and arrangement of the injection nozzles according to the invention and the number and arrangement of the positioning needles depend on the particular application and are within the skill of the art.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Bewegliche FormhälfteMobile mold half
- 22
- Feststehende FormhälfteFixed mold half
- 33
- Kavitätcavity
- 44
- HalbzeugWorkpiece
- 55
- Erste PositionierungsnadelFirst positioning needle
- 66
- Zweite PositionierungsnadelSecond positioning needle
- 77
- Positionierungsmechanismus für erste PositionierungsnadelPositioning mechanism for first positioning needle
- 88th
- Positionierungsmechanismus für zweite PositionierungsnadelPositioning mechanism for second positioning needle
- 99
- Heisskanaldüsehot runner nozzle
- 1010
- Heizwendelheating coil
- 1111
- Anlagefläche für SpritzkopfContact surface for spray head
- 1212
- TorpedonadeldüseTorpedonadeldüse
- 1313
- Kolbenpiston
- 1414
- Zylindercylinder
- 1515
- SchmelzezufuhrkanalMelt supply channel
- 1616
- Ringraum = erster SchmelzekanalAnnular space = first melt channel
- 1717
- Erste Öffnung in TorpedonadeldüseFirst opening in torpedo needle nozzle
- 1818
- Zweite Öffnung in TorpedonadeldüseSecond opening in torpedo needle nozzle
- 1919
- Zweiter SchmelzekanalSecond melt channel
- 2020
- Aussparung bzw. AbsatzRecess or heel
- 2121
- Lochscheibeperforated disc
- 2222
- Öffnung im HalbzeugOpening in the semi-finished product
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004050141.6A DE102004050141B4 (en) | 2004-10-14 | 2004-10-14 | Device for encapsulating semi-finished products in an injection mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004050141.6A DE102004050141B4 (en) | 2004-10-14 | 2004-10-14 | Device for encapsulating semi-finished products in an injection mold |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004050141A1 DE102004050141A1 (en) | 2006-04-20 |
DE102004050141B4 true DE102004050141B4 (en) | 2017-04-13 |
Family
ID=36120506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102004050141.6A Expired - Fee Related DE102004050141B4 (en) | 2004-10-14 | 2004-10-14 | Device for encapsulating semi-finished products in an injection mold |
Country Status (1)
Country | Link |
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DE (1) | DE102004050141B4 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2512771A1 (en) * | 2009-12-16 | 2012-10-24 | GM Tec Industries Holding GmbH | Method and device for producing a fibre-reinforced injection-moulded plastic part |
US9120258B2 (en) | 2011-05-31 | 2015-09-01 | Robert Bosch Gmbh | Device for encapsulating a component with plastics material |
DE102016001278A1 (en) | 2015-02-12 | 2016-08-18 | Marquardt Gmbh | Method for overmolding with plastic |
DE102017106490B4 (en) | 2016-03-31 | 2019-08-08 | Lisa Dräxlmaier GmbH | Method and device for producing a molded part with a fiber-reinforced carrier and at least one attached, plastic-containing attachment |
DE102018203704A1 (en) * | 2018-03-12 | 2019-09-12 | Elringklinger Ag | Method for producing a component and device for producing a component |
DE102019200960A1 (en) * | 2019-01-25 | 2020-07-30 | Robert Bosch Gmbh | Method and device for processing a hologram film |
CN113386302A (en) * | 2021-05-26 | 2021-09-14 | 上汽通用五菱汽车股份有限公司 | Switching mechanism for matching double-color injection mold with double-color injection molding machine |
Citations (10)
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---|---|---|---|---|
US4783298A (en) * | 1986-01-08 | 1988-11-08 | Mazda Motor Corporation | In-mold coating method and apparatus |
DE4032500C2 (en) * | 1990-10-12 | 1994-12-08 | Gellert Jobst U | Process for producing a multi-component injection molded part and multi-mold injection molding device |
DE4092623C2 (en) * | 1990-06-27 | 1995-06-01 | Michio Kaneko | Casting process, use therefor and casting device |
JPH09155915A (en) * | 1995-12-01 | 1997-06-17 | Nanjo Sobi Kogyo Kk | Molding method of insert molding and molding device |
DE69126705T2 (en) * | 1990-04-24 | 1997-10-23 | Devtech Labs | SIMULTANEOUSLY INJECTION MOLDING OF MOLDINGS FOR MULTI-LAYER CONTAINERS |
DE19722612C1 (en) * | 1997-05-30 | 1998-09-03 | Guenter Acs Gmbh & Co Kg | Multi=component injection moulding process and nozzle |
DE19948664A1 (en) * | 1999-10-08 | 2001-04-12 | Bayerische Motoren Werke Ag | Injection of plastic around fiber mat in injection molding tool, for molding fiber reinforced plastics, comprises injecting plastic onto one side of mat, then the other, after slightly moving tool faces apart |
JP2002036283A (en) * | 2000-07-26 | 2002-02-05 | Pigeon Corp | Method and apparatus for injection molding |
DE10155537A1 (en) * | 2001-01-05 | 2002-11-28 | Continental Teves Ag & Co Ohg | Injection molding of sensor for vehicles, especially wheel speed sensor, includes withdrawing of locating pins for electronic elements during injection |
EP2085204A2 (en) * | 2002-12-25 | 2009-08-05 | Honda Motor Co., Ltd. | Injection-molding method and apparatus |
-
2004
- 2004-10-14 DE DE102004050141.6A patent/DE102004050141B4/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4783298A (en) * | 1986-01-08 | 1988-11-08 | Mazda Motor Corporation | In-mold coating method and apparatus |
DE69126705T2 (en) * | 1990-04-24 | 1997-10-23 | Devtech Labs | SIMULTANEOUSLY INJECTION MOLDING OF MOLDINGS FOR MULTI-LAYER CONTAINERS |
DE4092623C2 (en) * | 1990-06-27 | 1995-06-01 | Michio Kaneko | Casting process, use therefor and casting device |
DE4032500C2 (en) * | 1990-10-12 | 1994-12-08 | Gellert Jobst U | Process for producing a multi-component injection molded part and multi-mold injection molding device |
JPH09155915A (en) * | 1995-12-01 | 1997-06-17 | Nanjo Sobi Kogyo Kk | Molding method of insert molding and molding device |
DE19722612C1 (en) * | 1997-05-30 | 1998-09-03 | Guenter Acs Gmbh & Co Kg | Multi=component injection moulding process and nozzle |
DE19948664A1 (en) * | 1999-10-08 | 2001-04-12 | Bayerische Motoren Werke Ag | Injection of plastic around fiber mat in injection molding tool, for molding fiber reinforced plastics, comprises injecting plastic onto one side of mat, then the other, after slightly moving tool faces apart |
JP2002036283A (en) * | 2000-07-26 | 2002-02-05 | Pigeon Corp | Method and apparatus for injection molding |
DE10155537A1 (en) * | 2001-01-05 | 2002-11-28 | Continental Teves Ag & Co Ohg | Injection molding of sensor for vehicles, especially wheel speed sensor, includes withdrawing of locating pins for electronic elements during injection |
EP2085204A2 (en) * | 2002-12-25 | 2009-08-05 | Honda Motor Co., Ltd. | Injection-molding method and apparatus |
Also Published As
Publication number | Publication date |
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DE102004050141A1 (en) | 2006-04-20 |
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