DE19641173A1 - Glass pressing process for manufacture of articles with undercut portions - Google Patents
Glass pressing process for manufacture of articles with undercut portionsInfo
- Publication number
- DE19641173A1 DE19641173A1 DE1996141173 DE19641173A DE19641173A1 DE 19641173 A1 DE19641173 A1 DE 19641173A1 DE 1996141173 DE1996141173 DE 1996141173 DE 19641173 A DE19641173 A DE 19641173A DE 19641173 A1 DE19641173 A1 DE 19641173A1
- Authority
- DE
- Germany
- Prior art keywords
- press
- stamp
- glass
- mold
- cover ring
- 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- Withdrawn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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/10—Construction of plunger or mould for making hollow or semi-hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
Der Preß-Blas-Prozeß ist in der Glasverformungstechnik bekannt, bei dem herkömmlichen Verfahren wird jedoch lediglich der Mün dungsbereich des Artikels erhalten durch das Mitbewegen der Mündungsform, während der übrige Behälterbereich weitgehend weiter verformt wird.The press-blow process is known in glass forming technology, in the conventional method, however, only the coin range of the article obtained by moving the Mouth shape, while the rest of the container area largely is deformed further.
Der Zweck dieses erfindungsgemäßen Verfahrens besteht zum Bei spiel für die Herstellung von Streuscheiben in der Beibehaltung wesentlicher Preß-Formgebungsbereiche wie die Lichtvertei lungsstruktur und der Erhaltung der Genauigkeit der Glasform des Artikels im maßgebenden Randbereich zur Lage der Licht struktur.The purpose of this method according to the invention is to game for the production of spreading discs in the retention essential press shaping areas such as the light distribution structure and maintaining the accuracy of the glass shape of the article in the decisive marginal area on the position of the light structure.
Ein Ausführungsbeispiel ist in der Fig. 1 beschrieben.An exemplary embodiment is described in FIG. 1.
Die Pos. 1 zeigt den durch Pressen erzeugten Artikel.Item 1 shows the article produced by pressing.
Die Pos. 2 zeigt den aus der Preß-Form entnommenen Artikel.Item 2 shows the article removed from the press mold.
Die Pos. 3 zeigt den in der Blas-Form fertiggeblasenen Artikel.Item 3 shows the blow-molded article.
Der Preßstempel 4 ist in den Bereichen in denen später in der Blas-Form 7, 8 ein Hinterschnitt erfolgen soll, so geformt, daß ein ausreichendes Glasvolumen bereitgehalten wird, welches in der Blas-Form 7, 8 den Hinterschnitt mit dem entsprechenden Glasbedarf deckt. Nach dem erfolgten Preßvorgang Pos. 1 wird der Glasartikel einmal gehalten durch Vakuum, welches durch die nach dem Preßvorgang um etwa 0,1-0,2 mm geöffneten Ventile 9 auf die untere Stempelfläche mit der Lichtstruktur wirkt, und zum anderen dem vornehmlich zwei- u. mehrteilig gestalteten Deckring 5, der hauptsächlich den noch verformbar gestalteten Randbereich hält und die spätere Formtreue zur Lichtstruktur ga rantiert, in die Pos. 2 gebracht und die Preß-Form gegen die Blas-Form ausgetauscht. Eine Umkehrung der Bewegungen ist auch möglich, so daß die beiden Formen je eine Position haben und der Stempel mit Deckring zu den jeweiligen Formen transportiert wird. Nach der Übereinstimmung der Preßachse mit der Blas- Formachse wird der Stempel und Deckring in die beiden 7, 8 - oder mehr - Blas-Form-Teile gefügt, und das Vakuum auf den Ventilen 9 wird durch Blas-Luft-Überdruck ersetzt, und das noch am Stempel haftende, verformbare Glas wird an die Blas-Form-Wandung gebla sen. Nach Durchführung dieses Vorganges kann durch geringfügi ges Anheben des Stempels noch ein Innenkühlen des Artikels mit Luftaustritt zwischen Stempel und Deckring erfolgen.The press ram 4 is shaped in the areas in which an undercut is later to be made in the blow mold 7 , 8 in such a way that a sufficient glass volume is kept available, which covers the undercut in the blow mold 7 , 8 with the corresponding glass requirement. After the pressing process item 1 has been carried out, the glass article is held once by vacuum, which acts on the lower stamp surface with the light structure through the valves 9 which are opened by about 0.1-0.2 mm after the pressing process, and on the other hand the primarily two u. Multi-part designed cover ring 5 , which mainly holds the still deformable designed edge area and guaranties the later shape fidelity to the light structure, brought into the Pos. 2 and exchanged the mold for the blow mold. The movements can also be reversed so that the two molds each have a position and the stamp with the cover ring is transported to the respective molds. After the press axis matches the blow-mold axis, the punch and cover ring are inserted into the two 7, 8 - or more - blow-mold parts, and the vacuum on the valves 9 is replaced by blow-air overpressure, and that deformable glass still adhering to the stamp is blown onto the blow mold wall. After carrying out this process, the article can be cooled internally with air leakage between the stamp and the cover ring by slightly lifting the stamp.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996141173 DE19641173A1 (en) | 1996-10-08 | 1996-10-08 | Glass pressing process for manufacture of articles with undercut portions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996141173 DE19641173A1 (en) | 1996-10-08 | 1996-10-08 | Glass pressing process for manufacture of articles with undercut portions |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19641173A1 true DE19641173A1 (en) | 1998-04-16 |
Family
ID=7807991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1996141173 Withdrawn DE19641173A1 (en) | 1996-10-08 | 1996-10-08 | Glass pressing process for manufacture of articles with undercut portions |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19641173A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9682881B2 (en) | 2013-06-06 | 2017-06-20 | Pochet Du Courval | Method for producing a glass container by pressing |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1259281A (en) * | 1915-07-03 | 1918-03-12 | Hartford Fairmont Co | Manufacture of glassware. |
US2205382A (en) * | 1938-05-19 | 1940-06-25 | Carr Lowrey Glass Co | Method of making hollow glassware |
DE2421677A1 (en) * | 1973-11-09 | 1975-05-15 | Linea Vetrerie Veneziane | Blown glass articles with internal decorative membranes - produced by inserts with recesses into parison before final blowing |
DE3407864A1 (en) * | 1983-03-09 | 1984-09-13 | Nippon Sheet Glass Co. Ltd., Osaka | SHAPE AND METHOD FOR PRODUCING SHAPED GLASS ITEMS |
-
1996
- 1996-10-08 DE DE1996141173 patent/DE19641173A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1259281A (en) * | 1915-07-03 | 1918-03-12 | Hartford Fairmont Co | Manufacture of glassware. |
US2205382A (en) * | 1938-05-19 | 1940-06-25 | Carr Lowrey Glass Co | Method of making hollow glassware |
DE2421677A1 (en) * | 1973-11-09 | 1975-05-15 | Linea Vetrerie Veneziane | Blown glass articles with internal decorative membranes - produced by inserts with recesses into parison before final blowing |
DE3407864A1 (en) * | 1983-03-09 | 1984-09-13 | Nippon Sheet Glass Co. Ltd., Osaka | SHAPE AND METHOD FOR PRODUCING SHAPED GLASS ITEMS |
Non-Patent Citations (1)
Title |
---|
JP 62-12623 A., In: Patents Abstracts of Japan, C-429, June 19, 1987, Vol. 11, No. 192 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9682881B2 (en) | 2013-06-06 | 2017-06-20 | Pochet Du Courval | Method for producing a glass container by pressing |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: KOENIG, WILHELM, 46047 OBERHAUSEN, DE |
|
8139 | Disposal/non-payment of the annual fee |