DE19816634A1 - Fastening holding insert within mold, to be cast into molding - Google Patents
Fastening holding insert within mold, to be cast into moldingInfo
- Publication number
- DE19816634A1 DE19816634A1 DE19816634A DE19816634A DE19816634A1 DE 19816634 A1 DE19816634 A1 DE 19816634A1 DE 19816634 A DE19816634 A DE 19816634A DE 19816634 A DE19816634 A DE 19816634A DE 19816634 A1 DE19816634 A1 DE 19816634A1
- Authority
- DE
- Germany
- Prior art keywords
- casting
- guide element
- recess
- mold
- guide
- 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.)
- Withdrawn
Links
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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/303—Mounting, exchanging or centering centering mould parts or halves, e.g. during mounting
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/306—Exchangeable mould parts, e.g. cassette moulds, mould inserts
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
- B29C33/405—Elastomers, e.g. rubber
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/26—Moulds or cores
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft eine Gußform für die Herstellung von Gußwerkstücken aus Gieß harz gemäß dem Oberbegriff des Anspruches 1.The invention relates to a mold for the production of cast workpieces from casting resin according to the preamble of claim 1.
Bei der Herstellung von Formstoffen oder Werkstücken aus Gießharzen werden häufig Zusatzteile, die beispielsweise eine mechanische oder elektrische Funktion überneh men, mit eingegossen. Zur Halterung derartiger Zusatzteile innerhalb des Formraumes dienen Schraubverbindungen oder geeignete Passungen, mit denen die Zusatzteile in der Gießform gehaltert sind.In the production of molding materials or workpieces from casting resins are common Additional parts that take over, for example, a mechanical or electrical function men, with cast in. For holding such additional parts within the molding space serve screw connections or suitable fits, with which the additional parts in the mold are supported.
Die Herstellung derartiger Schraubverbindungen ebenso wie die Herstellung der Pas sungen sind zeit- und kostenintensiv. Darüber hinaus sind die Verbindungen zwischen den Zusatzteilen und der Gußform starr, so daß beim Abkühlen Materialspannungs risse entstehen können. Da Gießharz beim Aushärten und Abkühlen schwindet, be steht auch die Gefahr von Materialablösungen entlang der Grenzfläche von Eingußteil und Gießharz.The production of such screw connections as well as the production of the Pas solutions are time and cost intensive. In addition, the connections between the additional parts and the mold rigid, so that when cooling material tension cracks can occur. Since cast resin shrinks when hardening and cooling, be there is also a risk of material detachment along the interface of the casting and cast resin.
Aufgabe der Erfindung ist es, eine Gießform der eingangs genannten Art zu schaffen, mit der Zusatz- oder Eingußteile einfacher fixiert werden können, ohne daß die Gefahr von Materialspannungsrissen oder Materialablösungen auftritt. The object of the invention is to provide a casting mold of the type mentioned in the introduction, with the additional or cast parts can be fixed more easily without the risk of material tension cracks or material detachments occurs.
Diese Aufgabe wird erfindungsgemäß gelöst durch die kennzeichnenden Merkmale des Anspruches 1.This object is achieved by the characterizing features of the Claim 1.
Erfindungsgemäß also ist in der Gußform ein Führungselement aus elastischem Mate rial in eine Ausnehmung in der Gußformwand eingesetzt welches Führungselement eine Aufnahmeöffnung für diejenigen Elemente trägt, die zur Halterung des Eingußtei les dienen.According to the invention there is a guide element made of elastic mate in the mold rial inserted into a recess in the mold wall which guide element carries a receiving opening for those elements that hold the gate les serve.
Ein solches Führungselement aus elastischem Material gestattet es, daß das Halte element für das Eingußteil in gewissem Umfang beweglich ist, so daß es beim Abküh len bestimmten Formveränderungen des Gießharzes folgen kann, wodurch Materi alspannungsrisse und Materialablösungen verhindert bzw. deutlich reduziert werden können.Such a guide element made of elastic material allows the holding element for the pouring part is movable to a certain extent, so that it when cooling len can follow certain changes in shape of the casting resin, thereby materi stress cracks and material detachments can be prevented or significantly reduced can.
Das Führungselement kann gemäß einer weiteren Ausführungsform der Erfindung an seiner Außenfläche insbesondere an dem dem Halteelement für das Eingußteil entge gengesetzten Ende eine Erweiterung aufweisen, so daß das Führungselement in einer Hinterschneidung in der Ausnehmung verrastbar ist. Darüber hinaus ist es zweckmäßig, wenn das Führungselement an dem dem Halteteil benachbarten Ende eine umlau fende Dichtleiste aufweist, mit der nach dem Einsetzen des Führungselementes in die entsprechende Ausnehmung in der Gießform diese Ausnehmung abgedichtet ist.According to a further embodiment of the invention, the guide element can its outer surface, in particular on the holding element for the casting part opposite end have an extension so that the guide element in a Undercut can be locked in the recess. In addition, it is advisable if the guide element umlau at the end adjacent to the holding part fende sealing strip with which after inserting the guide element in the corresponding recess in the mold this recess is sealed.
Die Aufnahmeöffnung innerhalb des Führungselementes kann eine vorzugsweise wel lige Innenfläche zur Halterung des Zusatzteiles besitzen, mit dem das Eingußteil fixiert wird.The receiving opening within the guide element can preferably be wel own inner surface for holding the additional part with which the cast part is fixed becomes.
Der elastische Kunststoff, aus dem das Führungselement hergestellt ist, weist ausrei chende Hörte auf, so daß eine ausreichende Halterung des Fixierteils erreicht ist bei einer ausreichenden Beweglichkeit und Nachgiebigkeit, wenn sich Verlagerungen beim Aushärten ergeben.The elastic plastic from which the guide element is made has enough stopped, so that a sufficient mounting of the fixing part is reached at Sufficient mobility and flexibility when there are changes in the Cure result.
Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Using the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements the invention are explained and described in more detail.
Es zeigen:Show it:
Fig. 1 eine Schnittansicht durch eine Gießformwand mit eingebautem Führungsele ment, und Fig. 1 is a sectional view through a mold wall with built-in guide element, and
Fig. 2 eine Schnittansicht eines Führungselementes. Fig. 2 is a sectional view of a guide element.
In der Wandung 10 einer Gießform befindet sich eine Ausnehmung 11, in der ein Füh rungselement 12 aus elastischem Material eingesetzt ist. Das Führungselement 12, das weiter unten näher dargestellt werden soll, besitzt eine Aufnahmeöffnung 13, in die ein Vorfangstift 14 eingesetzt ist, der einen in den Gießraum 15 vorspringenden Zapfen 16 aufweist, an dem z. B. eine Hülse 17 fixiert ist, die in dem Gießharz, mit dem der Gießraum 15 ausgefüllt wird, eingegossen sein soll.In the wall 10 of a mold there is a recess 11 in which a guide element 12 made of elastic material is inserted. The guide element 12 , which will be shown in more detail below, has a receiving opening 13 into which a catch pin 14 is inserted, which has a pin 16 projecting into the casting space 15 , on which, for. B. a sleeve 17 is fixed, which should be poured into the casting resin with which the casting chamber 15 is filled.
Das Führungselement 12 besitzt einen zylindrischen Abschnitt 20, dessen eines Ende eine fußartige, kegelstumpfförmige Erweiterung 21 trägt, die in ihren Abmessungen einer kegelstumpfartigen Erweiterung 22 der Aufnahme 11 entspricht, so daß über die fußartige Erweiterung 21 das Führungselement 12 in der Aufnahme 11 festgerastet ist. Am anderen Ende besitzt das Führungselement 12 eine umlaufende vorspringende Leiste 23, die im montierten Zustand, dann also, wenn das Führungselement 12 in der Aufnahme 11 untergebracht ist, in eine Stufe 24 eingreift, so daß über die Leiste 23 die Aufnahme mit eingesetztem Führungselement 12 abgedichtet wird.The guide element 12 has a cylindrical section 20 , one end of which carries a foot-like, truncated cone-shaped extension 21 , the dimensions of which correspond to a truncated cone-like extension 22 of the receptacle 11 , so that the guide element 12 is locked in place in the receptacle 11 via the foot-like extension 21 . At the other end, the guide element 12 has a circumferential projecting ledge 23 which engages in a step 24 in the assembled state, that is to say when the guide element 12 is accommodated in the receptacle 11 , so that the receptacle with the inserted guide element 12 is inserted via the ledge 23 is sealed.
Die Aufnahmeöffnung 13, die das Führungselement 12 mittig durchsetzt, besitzt eine wellige Innenfläche mit radialen Erhöhungen 25 und radialen Vertiefungen 26, so daß zwischen zwei Spitzen 25 eine umlaufende Rille, die Vertiefung 26, gebildet ist. Die Anzahl dieser Spitzen 25 und Rillen 26 ist abhängig von der Länge des Führungsele mentes 12; in der Fig. 2 sind drei Spitzen gezeichnet; dies ist nur beispielhaft und aus Zeichnungsgründen so gewählt. The receiving opening 13 which passes through the guide element 12 in the center has a wavy inner surface with radial elevations 25 and radial depressions 26 , so that a circumferential groove, the depression 26 , is formed between two tips 25 . The number of these peaks 25 and grooves 26 is dependent on the length of the guide element 12 ; in Fig. 2 three peaks are drawn; this is only an example and was chosen for drawing reasons.
Der mittlere Durchmesser Dm, d. h. der mittlere Durchmesser zwischen den Spitzen 25 und den Rillen 26, entspricht dem Durchmesser des Teiles 14a des Vorfangstiftes 14, der in die Aufnahmeöffnung 13 hineingesteckt wird. Das freie Ende des Teiles 14a besitzt einen Kopf 14b, der durch das Führungselement 12 hindurchgeschoben wird und auf der Seite herausschnappt, an der die fußartige Erweiterung 21 vorgesehen ist. Dadurch wird der Vorfangstift 14 am Führungselement gehalten, so daß der Vorfang stift 14 nicht in Richtung des Gießraumes 15 herausgezogen werden kann.The average diameter D m , ie the average diameter between the tips 25 and the grooves 26 , corresponds to the diameter of the part 14 a of the catch pin 14 which is inserted into the receiving opening 13 . The free end of part 14 a has a head 14 b which is pushed through the guide element 12 and snaps out on the side on which the foot-like extension 21 is provided. As a result, the catch pin 14 is held on the guide element, so that the catch pin 14 cannot be pulled out in the direction of the casting space 15 .
Während des Vergießens, also des Anfüllens des Gießraumes 15, mit Gießharz und des Aushärtens übernimmt der Vorfangstift die Verbindung von Eingußteil 17 und Füh rungsteil 12, so daß es die Möglichkeit besitzt, während des Aushärtungsprozesses, mit dem eine Materialschwindung verbunden ist, in geringem Maß mitzuwandern bzw. sich zu verlagern, was insbesondere dann von besonderem Vorteil ist, wenn die Grenzfläche zwischen dem Eingußteil 17, also der Hülse 17, und dem Gießharz den Anforderungen der Gasdichtigkeit genügen muß.During the casting, that is, the filling of the casting space 15 , with casting resin and the curing, the catch pin takes over the connection of the casting part 17 and the guide part 12 , so that it has the possibility, during the curing process, to which a material shrinkage is associated to a small extent to migrate or shift, which is particularly advantageous when the interface between the casting 17 , ie the sleeve 17 , and the cast resin must meet the requirements of gas tightness.
In vereinfachter Ausgestaltung kann die Innenfläche der Aufnahmeöffnung 13 glatt oder aufgerauht sein. Die wellige Form ist lediglich eine optimale Form.In a simplified embodiment, the inner surface of the receiving opening 13 can be smooth or roughened. The wavy shape is just an optimal shape.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19816634A DE19816634A1 (en) | 1998-04-15 | 1998-04-15 | Fastening holding insert within mold, to be cast into molding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19816634A DE19816634A1 (en) | 1998-04-15 | 1998-04-15 | Fastening holding insert within mold, to be cast into molding |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19816634A1 true DE19816634A1 (en) | 1999-10-21 |
Family
ID=7864567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19816634A Withdrawn DE19816634A1 (en) | 1998-04-15 | 1998-04-15 | Fastening holding insert within mold, to be cast into molding |
Country Status (1)
Country | Link |
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DE (1) | DE19816634A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3208065A1 (en) * | 2016-02-19 | 2017-08-23 | General Electric Technology GmbH | Mould and method for felxibly holding inserts in the mold during molding |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD97157A1 (en) * | 1972-06-09 | 1973-04-23 | ||
WO1982002020A1 (en) * | 1980-12-11 | 1982-06-24 | Feisel Armin | Method for making a distribution block for a liquid or gaseous medium |
DE3523128A1 (en) * | 1985-06-28 | 1987-01-08 | Albert Kristen | Insert part and holding device therefor |
DE3920925C2 (en) * | 1988-07-05 | 1997-07-03 | Heidel Gmbh & Co Kg | Molding tool for producing (foaming) a profile from multi-component plastic, in particular polyurethane, on the edge of a glass pane |
-
1998
- 1998-04-15 DE DE19816634A patent/DE19816634A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD97157A1 (en) * | 1972-06-09 | 1973-04-23 | ||
WO1982002020A1 (en) * | 1980-12-11 | 1982-06-24 | Feisel Armin | Method for making a distribution block for a liquid or gaseous medium |
DE3523128A1 (en) * | 1985-06-28 | 1987-01-08 | Albert Kristen | Insert part and holding device therefor |
DE3523128C2 (en) * | 1985-06-28 | 1988-04-28 | Albert 7519 Sulzfeld De Kristen | |
DE3920925C2 (en) * | 1988-07-05 | 1997-07-03 | Heidel Gmbh & Co Kg | Molding tool for producing (foaming) a profile from multi-component plastic, in particular polyurethane, on the edge of a glass pane |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3208065A1 (en) * | 2016-02-19 | 2017-08-23 | General Electric Technology GmbH | Mould and method for felxibly holding inserts in the mold during molding |
WO2017140692A1 (en) * | 2016-02-19 | 2017-08-24 | General Electric Technology Gmbh | Mould and method for flexible holding inserts in the mold during molding |
CN108698263A (en) * | 2016-02-19 | 2018-10-23 | 通用电器技术有限公司 | Mold and in casting by the removable method for remaining to mold of blade |
CN108698263B (en) * | 2016-02-19 | 2020-07-03 | 通用电器技术有限公司 | Mold and method for movably holding insert to mold during casting |
US11478965B2 (en) | 2016-02-19 | 2022-10-25 | General Electric Technology Gmbh | Mould and method for flexible holding inserts in the mold during molding |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |