DE971509C - Method and device for inwardly tipping the bottom of a vessel, in particular an ampoule - Google Patents
Method and device for inwardly tipping the bottom of a vessel, in particular an ampouleInfo
- Publication number
- DE971509C DE971509C DED658D DED0000658D DE971509C DE 971509 C DE971509 C DE 971509C DE D658 D DED658 D DE D658D DE D0000658 D DED0000658 D DE D0000658D DE 971509 C DE971509 C DE 971509C
- Authority
- DE
- Germany
- Prior art keywords
- vessel
- air
- blow nozzle
- ampoule
- inwardly
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/04—Re-forming tubes or rods
- C03B23/09—Reshaping the ends, e.g. as grooves, threads or mouths
- C03B23/097—Reshaping the ends, e.g. as grooves, threads or mouths by blowing
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/04—Re-forming tubes or rods
- C03B23/09—Reshaping the ends, e.g. as grooves, threads or mouths
- C03B23/097—Reshaping the ends, e.g. as grooves, threads or mouths by blowing
- C03B23/098—Vacuum-blowing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
Die Erfindung bezieht sich auf Maschinen oder Vorrichtungen zum Herstellen von Böden an Gefäßen, insbesondere Ampullen, aus Glasröhren.The invention relates to machines or devices for manufacturing from bottoms on vessels, in particular ampoules, from glass tubes.
Zwecks besserer Standfestigkeit erhielten die Gefäße schon einwärts gewölbte Böden; diese wurden nach dem Fertigschmelzen, also wenn sie noch weich waren, durch Richtplatten geformt oder durch Einblasen von Luft gegen Bodenformplatten ausgeblasen. Das starre Richtmittel der Formplatte verursachte aber eine zu gewaltsame Einwirkung auf die Übergangsstelle des Bodens in den zylindrischen Teil des Gefäßes und störte die innere Struktur des Glaskörpers. Dies ist besonders bei den empfindlichen Ampullen von Nachteil.For better stability, the vessels were already placed inwards arched bottoms; these were after the final melting, that is, when they were still soft Were shaped by straightening plates or by blowing air against floor shaped plates blown out. However, the rigid directional means of the mold plate caused too much force Action on the transition point of the soil into the cylindrical part of the vessel and disrupted the internal structure of the vitreous. This is especially true with the sensitive Ampoules disadvantageous.
Gemäß der Erfindung wird daher die Einwölbung des Bodens unmittelbar nach (lern Fertigschmelzen des Gefäßes, solange der Boden also noch heiß ist, unter Vermeidung der Verwendung starrer Formmittel mittels Luftdrucks erzielt, indem entweder Luftstrahlen von außen gegen den Gefäßboden gerichtet werden oder im Inneren des Gefäßes Unterdruck erzeugt wird.According to the invention, the convexity of the floor is therefore immediate after (learn how to melt the vessel as long as the bottom is still hot, under Avoiding the use of rigid mold means achieved by using either air pressure Air jets are directed from the outside against the bottom of the vessel or inside the Vessel negative pressure is generated.
Es ist schon eine Einrichtung bekannt, bei der eine aus einem Brenner austretende Flamme auf einen Teil der Wandung eines Gefäßes derart einwirkt, daß das Glas zunächst erweicht lind dann durch den Druck der Flamme eine gewünschte Formänderung erzielt wird. Gemäß der Erfindung dagegen wird ein besonderer Brenner vermieden und auf das von der vorangehenden Bearbeitung noch weiche Glas ein äußerer Luftüberdruck zur Wirkung gebracht.A device is already known in which one consists of a burner exiting flame acts on part of the wall of a vessel in such a way that the glass first softens and then a desired one through the pressure of the flame Shape change is achieved. According to the invention, however, is a special burner avoided and an external one on the glass, which was still soft from the previous processing Air pressure brought into effect.
Dabei beruht die Erfindung auf der Erkenntnis, daß durch die Anwendung des von Luftstrahlen erzeugten äußeren Luftdrucks oder des inneren Unterdrucks die innere Struktur des Glaskörpers geschont wird, indem lediglich der mittlere Bodenteil eingewölbt wird und der an die Seitenwand des Gefäßes anschließende Bodenteil eine leichte Rundung erhält. Der leicht nach innen gewölbte Boden erhöht so nicht nur die Standfestigkeit, sondern wirkt sich auch auf die Spannung im Glase fast ebenso günstig aus wie bei einem Reagenzglas der nach außen gewölbte halbkugelförmige Boden.The invention is based on the knowledge that through the application the external air pressure generated by air jets or the internal negative pressure the inner structure of the glass body is spared by only the middle bottom part is arched and the bottom part adjoining the side wall of the vessel is a slightly rounded. The slightly inwardly curved base not only increases the stability, but also affects the tension in the glass almost as well The outwardly curved hemispherical bottom is favorable, like a test tube.
Die Erfindung ist aus den Ausführungsbeispielen ersichtlich.The invention can be seen from the exemplary embodiments.
In Abb. i werden in bekannter Weise gleichzeitig zwei Böden durch Durchschmelzen in der Mitte erzeugt, und durch eine zwischen die Bodenenden geführte Blasdüse wird gleichzeitig Luft gegen beide Böden geblasen. Damit das Fertigschmelzen nicht behindert wird, wird die Blasluft durch das in der Zeichnung dargestellte Abstellventil mittels der Kurvenscheibe periodisch gesteuert.In Fig. I, two floors are passed through at the same time in a known manner Melting through is generated in the middle, and passed through one between the bottom ends Air nozzle, air is blown against both floors at the same time. So that the final melting is not hindered, the blown air is shown in the drawing Shut-off valve periodically controlled by means of the cam.
In Abb. 2 und 3 wird die Anwendung der Erfindung gezeigt bei einer ununterbrochen arbeitenden Maschine zur Herstellung von Ampullen, bei der die Haltevorrichtungen für die Glasrohre in bekannter Weise ununterbrochen umlaufen und dabei die fertig geschmolzenen Böden während einer Strecke über die dieser Strecke angepaßten Blasdüsen führen. Hierbei kann die Blasluft dauernd ausströmen.In Figs. 2 and 3 the application of the invention is shown in a continuously working machine for the production of ampoules, in which the holding devices for the glass tubes circulate continuously in a known manner and thereby the finished molten soils during a distance via the blow nozzles adapted to this distance to lead. The blown air can flow out continuously.
Die Blasdüse kann aber ebenfalls während einer Strecke mitlaufen und nur dem Durchmesser des Bodens angepaßt sein. Ebenso kann sie für den Zeitraum des Blasens gegen den oder die Böden verschwenkt werden.The blower nozzle can, however, also run along for a distance and only be adapted to the diameter of the bottom. It can also be used for the period of Blasens against the or the floors are pivoted.
In Abb. 4 wird das offene Gefäßende abdichtend an eine Vakuumleitung angeschlossen, die zweckmäßig periodisch gesteuert wird, so daß durch den erzielten Unterdruck der weiche Boden nach innen eingewölbt wird.In Fig. 4 the open end of the vessel is sealed to a vacuum line connected, which is appropriately controlled periodically, so that achieved by the Underpressure the soft floor is arched inwards.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED658D DE971509C (en) | 1943-11-17 | 1943-11-17 | Method and device for inwardly tipping the bottom of a vessel, in particular an ampoule |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED658D DE971509C (en) | 1943-11-17 | 1943-11-17 | Method and device for inwardly tipping the bottom of a vessel, in particular an ampoule |
Publications (1)
Publication Number | Publication Date |
---|---|
DE971509C true DE971509C (en) | 1959-02-05 |
Family
ID=7028847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED658D Expired DE971509C (en) | 1943-11-17 | 1943-11-17 | Method and device for inwardly tipping the bottom of a vessel, in particular an ampoule |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE971509C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1261638B (en) * | 1961-01-10 | 1968-02-22 | Dichter E H Jakob Dr Ing | Device for forming a bottom of ampoules or the like. |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE90882C (en) * | ||||
DE521705C (en) * | 1926-11-10 | 1931-03-28 | Jakob Dichter | Device for producing constrictions at the base of the spit of ampoule bodies |
DE534577C (en) * | 1930-04-26 | 1931-09-29 | Jakob Dichter | Process for making glass vessels from fitted glass tube ends |
DE639444C (en) * | 1934-08-11 | 1936-12-05 | Jakob Dichter | Process for reshaping the ends of fitted glass tubes |
DE722778C (en) * | 1935-01-03 | 1942-07-22 | Jakob Dichter | Machine for the production of tablet glasses, ampoules and other hollow glass bodies |
-
1943
- 1943-11-17 DE DED658D patent/DE971509C/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE90882C (en) * | ||||
DE521705C (en) * | 1926-11-10 | 1931-03-28 | Jakob Dichter | Device for producing constrictions at the base of the spit of ampoule bodies |
DE534577C (en) * | 1930-04-26 | 1931-09-29 | Jakob Dichter | Process for making glass vessels from fitted glass tube ends |
DE639444C (en) * | 1934-08-11 | 1936-12-05 | Jakob Dichter | Process for reshaping the ends of fitted glass tubes |
DE722778C (en) * | 1935-01-03 | 1942-07-22 | Jakob Dichter | Machine for the production of tablet glasses, ampoules and other hollow glass bodies |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1261638B (en) * | 1961-01-10 | 1968-02-22 | Dichter E H Jakob Dr Ing | Device for forming a bottom of ampoules or the like. |
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