DE4118916A1 - Mouldings free from flash, prodn. - by surrounding mould impression with elastic seal whose top face is higher than that of finished moulding - Google Patents
Mouldings free from flash, prodn. - by surrounding mould impression with elastic seal whose top face is higher than that of finished mouldingInfo
- Publication number
- DE4118916A1 DE4118916A1 DE19914118916 DE4118916A DE4118916A1 DE 4118916 A1 DE4118916 A1 DE 4118916A1 DE 19914118916 DE19914118916 DE 19914118916 DE 4118916 A DE4118916 A DE 4118916A DE 4118916 A1 DE4118916 A1 DE 4118916A1
- Authority
- DE
- Germany
- Prior art keywords
- flash
- prodn
- mouldings
- molded article
- free
- 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- Withdrawn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
- 238000000465 moulding Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims abstract description 4
- 238000001746 injection moulding Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000071 blow moulding Methods 0.000 claims 1
- 238000004073 vulcanization Methods 0.000 claims 1
- 238000010102 injection blow moulding Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000034303 cell budding Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- B29C33/0038—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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
-
- 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
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Gummi- und Kunststoff-Formartikeln, deren Fertigstellung in Vulkanisierpressen, Spritzguß- oder Blasformmaschinen erfolgt.The invention relates to a method for producing Rubber and plastic molded articles, their completion in vulcanizing presses, injection molding or blow molding machines he follows.
Die bei der Durchführung des vorgenannten Verfahrens ver wendeten Formen bestehen aus Metall, vorwiegend aus Stahl. Die Formen bestehen zur Entnahme des Produktes aus min destens zwei TeiIen. Gelegentlich werden die Formen durch das Einlegen von zum Beispiel Metallelementen verkleinert. Dies hat zur Folge, daß sich an der Berührungsfläche der Formsegmente ein sogenannter Austrieb bildet. Durch diesen Austrieb ergibt sich einerseits ein Werkstoffverlust, während andererseits die Abtrennung des Austriebs von dem Werkstück nicht unerhebliche Nacharbeit erfordert.The ver The molds used are made of metal, predominantly steel. The molds consist of min at least two parts. Occasionally, the shapes go through the insertion of metal elements, for example, is reduced. This has the consequence that the Form segments form a so-called shoot. Through this On the one hand, sprouting results in a loss of material, while on the other hand the separation of the shoots from the Workpiece requires considerable rework.
Der Erfindung liegt die Aufgabe zugrunde, die bekannten Verfahren zur Herstellung von Gummi- und Kunststoff-Form artikeln derart zu verbessern, daß die Bildung eines Aus triebs nicht mehr möglich ist.The invention has for its object the known Process for the production of rubber and plastic mold to improve items so that the formation of an out drive is no longer possible.
Die Lösung der gestellten Aufgabe besteht darin, daß bei dem Verfahren der eingangs genannten Art an den Grenz flächen der Formsegmente Dichtelemente angeordnet sind. The solution to the problem is that the procedure of the type mentioned at the border surfaces of the mold segments sealing elements are arranged.
In Weiterbildung der Erfindung bestehen die Dichtelemente aus elastischem Werkstoff, vorteilhafterweise aus Gummi oder gummiähnlichem Material. Die Dichtelemente können bei vorgefüllten Formen das werkstückbildende Material etwas überragen; bei ganz oder teilweise unter Verschluß zu fül lenden Formen können die Dichtelemente die Formsegment flächen etwas überragen. Dadurch stehen die Dichtelemente bei geschlossener Form unter einer Spannung, so daß nicht einmal geringe Mengen des werkstückbildenden Materials zwischen die Dichtelemente und die Grenzfläche der Form segmente dringen können.In a further development of the invention there are the sealing elements made of elastic material, advantageously rubber or rubber-like material. The sealing elements can prefilled forms the workpiece-forming material somewhat tower over; to fill completely or partially under lock and key lend forms, the sealing elements can form the segment protrude somewhat. As a result, the sealing elements are in place with the mold closed under tension so that not small amounts of the workpiece-forming material between the sealing elements and the interface of the mold segments can penetrate.
Die Erfindung ist anhand der Zeichnung näher erläutert.The invention is explained in more detail with reference to the drawing.
Es zeigenShow it
Fig. 1 Einen Formartikel, der nach einem bekannten Verfahren hergestellt worden ist, zwischen oberem und unterem Formsegment. Fig. 1 A molded article that has been produced by a known method, between the upper and lower mold segment.
Fig. 2 Einen Formartikel, der nach dem erfindungs gemäßen Verfahren hergestellt worden ist, bei abgehobenem oberen Formsegment. Fig. 2 shows a molded article that has been produced by the method according to the Invention, with the upper mold segment lifted off.
Fig. 3 Einen Formartikel, der nach dem erfindungs gemäßen Verfahren hergestellt worden ist, bei anderer Anordnung des Dichtelementes wie in Fig. 2. Fig. 3 A molded article was prepared according to the fiction, modern method, with a different arrangement of the sealing element as shown in FIG. 2.
Fig. 4 Einen Formartikel, der nach dem erfindungs gemäßen Verfahren hergestellt worden ist, bei durch Beilegmaterial verkleinerter Form. Fig. 4 A molded article that has been produced by the method according to the Invention, with the mold reduced in size by insert material.
Wie aus Fig. 1 zu ersehen ist, hat sich an dem zwischen oberen Formsegment 1 und unteren Formsegment 2 in seine endgültige Form gebrachten Formartikel 3 dadurch ein Aus trieb 4 gebildet, daß ein Teil des den Formartikel bilden den Werkstoffes zwischen die Formsegmente gedrungen ist, weil die Form nicht dicht schließt.As can be seen from Fig. 1, has formed on the between the upper mold segment 1 and the lower mold segment 2 in its final shape molded article 3 from 4 drive that part of the molded article form the material has penetrated between the mold segments, because the shape does not close tightly.
Der in Fig. 2 dargestellte Formartikel 3 weist keinen Austrieb auf, weil das Dichtelement 5 während der Fertig stellung des Formartikels 3 den Raum zwischen den Form segmenten vollständig ausfüllte (vgl. Fig. 3).The molded article 3 shown in FIG. 2 has no sprouts because the sealing element 5 completely filled the space between the molded segments during the completion of the molded article 3 (cf. FIG. 3).
In dem dargestellten Ausführungsbeispiel besteht das Dicht element 5 aus einem elastischen Werkstoff und die Höhe des Dichtelementes 5 überragt die Dicke des fertigen Form artikels und die Formsegmentflächen.In the illustrated embodiment, the sealing element 5 consists of an elastic material and the height of the sealing element 5 exceeds the thickness of the finished molded article and the mold segment surfaces.
Der in Fig. 4 dargestellte Formartikel 3 weist ebenfalls keinen Austrieb auf, obwohl in diesem Ausführungsbeispiel die Form durch Beilegmaterial 6 verändert wurde. Auch in diesem Ausführungsbeispiel verhinderte das die Höhe der Segmentflächen überragende Dichtelement die Entstehung des Austriebs.The molded article 3 shown in FIG. 4 also has no budding, although in this embodiment the shape was changed by insert material 6 . In this exemplary embodiment too, the sealing element projecting beyond the height of the segment surfaces prevented the emergence of the shoot.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19914118916 DE4118916A1 (en) | 1991-06-08 | 1991-06-08 | Mouldings free from flash, prodn. - by surrounding mould impression with elastic seal whose top face is higher than that of finished moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19914118916 DE4118916A1 (en) | 1991-06-08 | 1991-06-08 | Mouldings free from flash, prodn. - by surrounding mould impression with elastic seal whose top face is higher than that of finished moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4118916A1 true DE4118916A1 (en) | 1992-05-21 |
Family
ID=6433515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19914118916 Withdrawn DE4118916A1 (en) | 1991-06-08 | 1991-06-08 | Mouldings free from flash, prodn. - by surrounding mould impression with elastic seal whose top face is higher than that of finished moulding |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4118916A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4430584A1 (en) * | 1994-02-22 | 1995-08-24 | Mitsubishi Electric Corp | Moulding tool and process for metals and plastics |
| EP0958908A2 (en) * | 1998-04-24 | 1999-11-24 | Husky Injection Molding Systems Ltd. | Dynamic mold seal |
| TWI652159B (en) | 2014-11-26 | 2019-03-01 | 綠點高新科技股份有限公司 | Injection molding method |
| WO2019101398A1 (en) * | 2017-11-23 | 2019-05-31 | Bayerische Motoren Werke Aktiengesellschaft | Mould for producing a fibre-reinforced hollow plastic component, hollow core for use in the mould and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60149421A (en) * | 1984-01-17 | 1985-08-06 | Mitsubishi Plastics Ind Ltd | Compression mold with drainage through hole |
| DE3518739A1 (en) * | 1984-05-28 | 1985-11-28 | ASEA AB, Västerås | METHOD FOR MOLDING AN OBJECT BY PRESSING |
-
1991
- 1991-06-08 DE DE19914118916 patent/DE4118916A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60149421A (en) * | 1984-01-17 | 1985-08-06 | Mitsubishi Plastics Ind Ltd | Compression mold with drainage through hole |
| DE3518739A1 (en) * | 1984-05-28 | 1985-11-28 | ASEA AB, Västerås | METHOD FOR MOLDING AN OBJECT BY PRESSING |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4430584A1 (en) * | 1994-02-22 | 1995-08-24 | Mitsubishi Electric Corp | Moulding tool and process for metals and plastics |
| DE4430584C2 (en) * | 1994-02-22 | 1999-04-15 | Mitsubishi Electric Corp | Molding device and method for producing a molding device |
| EP0958908A2 (en) * | 1998-04-24 | 1999-11-24 | Husky Injection Molding Systems Ltd. | Dynamic mold seal |
| EP0958908A3 (en) * | 1998-04-24 | 2001-12-12 | Husky Injection Molding Systems Ltd. | Dynamic mold seal |
| TWI652159B (en) | 2014-11-26 | 2019-03-01 | 綠點高新科技股份有限公司 | Injection molding method |
| WO2019101398A1 (en) * | 2017-11-23 | 2019-05-31 | Bayerische Motoren Werke Aktiengesellschaft | Mould for producing a fibre-reinforced hollow plastic component, hollow core for use in the mould and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8122 | Nonbinding interest in granting licenses declared | ||
| 8127 | New person/name/address of the applicant |
Owner name: MARX, ANDREAS, 72829 ENGSTINGEN, DE |
|
| 8139 | Disposal/non-payment of the annual fee |