DE102009037131A1 - Combination-injection molding tool for two components, is designed such that components are injected into mold cavities, respectively, where mold cavities are separated by separating slide that is drawn after sealing nozzle - Google Patents
Combination-injection molding tool for two components, is designed such that components are injected into mold cavities, respectively, where mold cavities are separated by separating slide that is drawn after sealing nozzle Download PDFInfo
- Publication number
- DE102009037131A1 DE102009037131A1 DE200910037131 DE102009037131A DE102009037131A1 DE 102009037131 A1 DE102009037131 A1 DE 102009037131A1 DE 200910037131 DE200910037131 DE 200910037131 DE 102009037131 A DE102009037131 A DE 102009037131A DE 102009037131 A1 DE102009037131 A1 DE 102009037131A1
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- DE
- Germany
- Prior art keywords
- components
- mold cavities
- injection molding
- molding tool
- injected
- 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.)
- Ceased
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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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould cavities
-
- 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Das Spritzgießen von Teilen aus zwei Komponenten ist eine weitverbreitete Technologie. Seltener werden Teile aus drei oder vier Komponenten gefertigt. Das später beschriebene Kombinations-Spritzgusswerkzeug ist auch für mehr als zwei Komponenten geeignet. Die Notwendigkeit, zwei oder mehr Komponenten für ein Spritzgussteil zu verwenden, soll nur kurz erläutert werden. Oft ist der gleiche Thermoplast nur verschiedenfarbig, manchmal wird eine elastische Dichtlippe angebracht oder z. B. eine Lagerschale aus GFK integriert. Voraussetzung für die Verwendung von verschiedenartigen Kunststoffen ist die Verschweißbarkeit der heißen Schmelze der 2. Komponente mit dem abgekühlten Teilstück der 1. Komponente. Die bisher vorherrschende Technologie sieht für die Kombination von zwei Komponenten zwei Werkzeuge mit zwei Formnestern vor. In das erste Formnest wird die erste Komponente eingespritzt und bis zur Erstarrung abgekühlt. Danach wird von Hand oder mechanisch das abgekühlte Teilstück in das zweite Werkzeug gelegt und mit der zweiten Komponente durch Einspritzen verbunden. Bei mehr als zwei Komponenten müssen entsprechend viele Werkzeuge vorgesehen werden.Injection molding of two-component parts is a widely used technology. Less often parts are made of three or four components. The combination injection molding tool described later is also suitable for more than two components. The need to use two or more components for an injection molded part will be briefly explained. Often the same thermoplastic is only different colors, sometimes an elastic sealing lip is attached or z. B. integrated a bearing shell made of GRP. Prerequisite for the use of various plastics is the weldability of the hot melt of the second component with the cooled portion of the 1st component. The hitherto prevailing technology provides for the combination of two components two tools with two mold cavities. In the first mold cavity, the first component is injected and cooled to solidification. Thereafter, the cooled portion is placed by hand or mechanically in the second tool and connected to the second component by injection. With more than two components, a corresponding number of tools must be provided.
Werkzeuge und die eventuellen Umsetzgeräte sind teuer, durch das Abkühlen der beiden Teile und das Umsetzen entsteht eine lange Taktzeit, bei Kleinserien, die von Hand umgesetzt werden, ergeben sich hohe Stückkosten.Tools and the possible Umsetzgeräte are expensive, by cooling the two parts and the implementation creates a long cycle time in small series, which are implemented by hand, resulting in high unit costs.
Der Anmelder hat im
Nachfolgend die Erklärung des Kombinations-Spritzgusswerkzeugs und die Beschreibung des dafür entwickelten Verfahrens. Die Verbesserung erspart ein zweites Werkzeug, das Teil erfordert nur eine Abkühlzeit und keine Umsetzung der erstarrten 1. Komponente. Zudem verschweißen beide Komponenten als heiße Schmelzen und schaffen damit eine bessere Verbindung. Es wurde nicht erprobt, doch besteht die Möglichkeit, daß sich Thermoplasten als heiße Schmelzen verbinden lassen, die nach dem jetzigen Verfahren nicht kombinierbar sind.Below is the explanation of the combination injection molding tool and the description of the method developed for it. The improvement saves a second tool, the part requires only a cooling time and no implementation of the solidified 1st component. In addition, both components weld as hot melts and thus create a better connection. It was not tested, but there is the possibility that thermoplastics can be combined as hot melts, which can not be combined according to the current process.
Vorausseztung für das Funktionieren ist der Einsatz von Heißkanaldüsen, die den Anguß noch bei bestehendem Nachdruck hermetisch versiegeln. Dies ist der Fall bei der unter Nr. 103 40 108.3-16 patentierten Heißkanaldüse, der sog. Intervalldüse. Durch Abschalten der Düsenheizung entsteht noch bei anstehendem Nachdruck in der Düsenspitze ein kalter Pfropfen, der den Anschnitt wirksam versiegelt. Bei permanent beheizten Heißkanaldüsen, wie z. B. Torpedodüsen, ist der Transportweg der Schmelze bis zum Plastifizierzylinder der Spritzgussmaschine thermisch geöffnet, sodass in einem gemeinsamen Formnest beim Einspritzen der 2. Komponente die Schmelze der 1. Komponente teilweise oder ganz verdrängt wird. Auch mechanische Verschlußdüsen sind wenig geeignet. Auch hier wird der Angußpunkt ständig beheizt und beim Entformen kann sich die plastische Seele der beiden Komponenten unterschiedlich entspannen, sodass die gemeinsame Grenzfläche ungeregelt verschoben wird.The prerequisite for this function is the use of hot runner nozzles, which hermetically seal the sprue when existing. This is the case with the No. 103 40 108.3-16 patented hot runner nozzle, the so-called Intervalldüse. By switching off the nozzle heater, a cold plug is formed in the nozzle tip when the holding pressure is applied, effectively sealing the gate. For permanently heated hot runner nozzles, such. B. torpedo nozzles, the transport path of the melt is thermally opened up to the plasticizing the injection molding machine, so that in a common mold cavity during injection of the second component, the melt of the 1st component is partially or completely displaced. Also mechanical closure nozzles are not very suitable. Again, the gate is constantly heated and during demolding, the plastic soul of the two components can relax differently, so that the common interface is moved unregulated.
Es gibt zwei Typen von Kombinations-Spritzgusswerkzeugen. Bei Typ I (
In den beiden
Typ II (
Die Schmelzenzuführung zu den beiden Intervalldüsen d und d' und womöglich weitere Düsen kann durch begleitbeheizte und wärmeisolierte Rohrleitungen erfolgen, wie in dem vorerwähnten Artikel beschrieben wird.The supply of melt to the two interval nozzles d and d 'and possibly further nozzles can be carried out by means of accompanying-heated and thermally insulated pipelines, as described in the abovementioned article.
ZeichenerklärungExplanations
-
- a, a'a, a '
- = Formnest der Komponente A= Mold cavity of component A
- b, b'b, b '
- = Formnest der Komponente B= Mold cavity of component B
- cc
- = Schieberform= Slider shape
- d, d'd, d '
- = Heißkanaldüsen, sog. Intervalldüsen= Hot runner nozzles, so-called. Interval nozzles
- ee
- = Stahlfeder= Steel spring
- ff
- = Schieberführung= Slider guide
- gG
- = Trennebene= Parting plane
- h, h'h, h '
- = Grenzfläche zwischen a und b= Interface between a and b
- ii
- = Trennschieber zwischen a und b= Separating slide between a and b
- kk
- = Antrieb von i= Drive of i
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte Nicht-PatentliteraturCited non-patent literature
- Aprilheft 2009 der Fachzeitschrift „Plastverarbeiter” einen Artikel mit dem Titel „2 K auf Standardmaschinen” [0003] April issue 2009 of the journal "Plastverarbeiter" an article with the title "2 K on standard machines" [0003]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910037131 DE102009037131A1 (en) | 2009-08-11 | 2009-08-11 | Combination-injection molding tool for two components, is designed such that components are injected into mold cavities, respectively, where mold cavities are separated by separating slide that is drawn after sealing nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910037131 DE102009037131A1 (en) | 2009-08-11 | 2009-08-11 | Combination-injection molding tool for two components, is designed such that components are injected into mold cavities, respectively, where mold cavities are separated by separating slide that is drawn after sealing nozzle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009037131A1 true DE102009037131A1 (en) | 2011-03-31 |
Family
ID=43662303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910037131 Ceased DE102009037131A1 (en) | 2009-08-11 | 2009-08-11 | Combination-injection molding tool for two components, is designed such that components are injected into mold cavities, respectively, where mold cavities are separated by separating slide that is drawn after sealing nozzle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009037131A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012007876A1 (en) | 2012-04-19 | 2013-10-24 | Ulrich Krämer | Combination tool for use in manufacture of e.g. vehicle floor mat, has tool half portion which is vertically rotated at preset angle and pushed upwardly when filling cavity in tool half portion with polyurethane mixture |
DE102014007186A1 (en) * | 2014-05-15 | 2015-11-19 | Hennecke Gmbh | Method and device for producing fiber composite components in a reaction casting process |
-
2009
- 2009-08-11 DE DE200910037131 patent/DE102009037131A1/en not_active Ceased
Non-Patent Citations (1)
Title |
---|
Aprilheft 2009 der Fachzeitschrift "Plastverarbeiter" einen Artikel mit dem Titel "2 K auf Standardmaschinen" |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012007876A1 (en) | 2012-04-19 | 2013-10-24 | Ulrich Krämer | Combination tool for use in manufacture of e.g. vehicle floor mat, has tool half portion which is vertically rotated at preset angle and pushed upwardly when filling cavity in tool half portion with polyurethane mixture |
DE102012007876B4 (en) | 2012-04-19 | 2018-03-08 | Ulrich Krämer | Combination tool for PUR |
DE102014007186A1 (en) * | 2014-05-15 | 2015-11-19 | Hennecke Gmbh | Method and device for producing fiber composite components in a reaction casting process |
DE102014007186B4 (en) | 2014-05-15 | 2020-06-04 | Hennecke Gmbh | Method and device for producing fiber composite components in a reaction casting process |
DE102014007186C5 (en) | 2014-05-15 | 2023-10-19 | Hennecke Gmbh | Method and device for producing fiber composite components in a reaction casting process |
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OP8 | Request for examination as to paragraph 44 patent law | ||
R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R006 | Appeal filed | ||
R007 | Decision rectified on appeal | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |