DE8232133U1 - Glass tube for the production of ampoules and tube vials - Google Patents

Description

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The present innovation relates to a glass tube / for the manufacture of ampoules and tubular vials determined is / And the fer "-fciguhg" of the ampoules and vials

ßi possible by novel and extremely advantageous methods

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Ampoules and tube vials are mainly made from glass tubes. The glass tubes are continuously expanded testifies by pouring the molten glass onto a rotating mandrel in a slightly inclined pipe pulling device >> - and compressed air via the pierced shaft carrying the Dörii is blown into the interior of the forming glass tube. The pipe is pulled and on a runway to one Cutting device promoted, where pipe lengths of about 1.50 m are cut. I.

Such pipe lengths are used in production machines, |

such as ampoules or tube ί carousel machines

vials made. t

t When cutting the pipe lengths by quenching the

is carried out hot tube at the intended location (r exhaust blast), get fine pieces of glass into the tube interior. When the glass tubes are transported in cardboard boxes to the ampoule and bottle manufacturer, dust penetrates the glass tubes. During the production of ampoules and vials, combustion gases and oil vapors get into the tubes or into the vessels to be formed. All of this means that the ampoules and tube vials produced must be subjected to a cleaning process before they can be filled.

The aim of the present invention is a glass tube that thanks their shape makes it possible that

1) they do not contain any broken glass after being cut off,

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2) No dust or other contaminants during the Transport of the tubes can penetrate into this!, And

3) the ampoule and tube vial manufacturing processes in can be carried out in such a way that no contaminants during the manufacturing process Vapors penetrate the glass tubes or the resulting vessel.

\ J This goal is achieved with a glass tube in accordance with the protection requirements »

The new glass tube thus consists of a long, narrow one Glass tube, both ends of which are closed, nearby One of the two closed ends has a very small, preferably circular opening which is sealed by a thin film.

So this novel glass tube behaves what the possibility contamination during transport, such as a glass tube that is completely closed on both sides.

During the production of the ampoules and tube vials, a simple process measure such as thermal softening of the plastic or glass film or burning off of the paper film, exposing the small opening will. In this state of the glass tubes, thanks to the small opening, a certain pressure equalization is possible, which is completely new Production process for the ampoules and tube vials made possible; but on the other hand is so imperfect that there is always a slight overpressure in the glass tubes which prevents e.g. combustion gases and other polluting vapors from entering the interior penetrate the tube.

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The "cutting" of the tubes to the intended length of generally about 1 / 50m is not done by blasting, but by melting techniques, whereby the two ends of the glass tubes are also closed so that k? irie Make glass splinters longer in the tube.

The shape of the Erideh can be any * for example flat, arched inward or arched outward. Preferably at least one of the two ends of the glass tubes is a flat end.

The punctiform opening is preferably located at the side " borrowed on the wall of the glass tube and is 0.5 to 1.5 mm in size.

The glass tubes can be of any thickness (outer diameter), depending on their intended use; it can, for example, be 5 mm, 10 mm, 25 mm or 40 mm thick or the like.

The film that closes the small opening can be made of any suitable material. According to one embodiment of the innovation, it consists of plastic; in in this case, the plastic film can be produced by the hot area surrounding the opening is brought into contact with a plastic film, the plastic film being hot Glass sticks.

According to another embodiment of the innovation, the film consists of a residue-free burning material, such as ashless paper.

But it is also possible to use suitable melting techniques to produce a thin film from the glass itself, which the opening in the form of a glass membrane closes.

In the drawing is a glass tube according to an exemplary Embodiment of the present innovation perspective

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visch and interrupted shown The glass tube 1 is at both ends by a flat floor 2, 3 locks » In the vicinity of one of the bottoms is the pipe- ' wall a small opening 4, which was closed by a film 5 is*

Claims (1)

S.RO G 3.2 Schott-Ruhrglas GmbH Bay reuth Glass tubes for the production of ampoules and tube vials Protection claims : 1. Glass tube for the production of ampoules and tube vials, characterized in that this tube (1) is closed at both ends by bottoms (2, 3), and that place them on one of these floors or near a cheser Bottoms has a small opening (4) through a Film (5) is closed. 2. Glass tubes according to claim 1, characterized in that this small opening (4) is on the side in the wall of the glass tubes. 3. Glass tubes according to claim 1, characterized in that at least one of the two floors (2, 3) is a flat floor. 4. Glass tubes according to claim 1, characterized in that this film (5) is a plastic film. 54 Glass tubes according to claim 1, characterized in that this film (5) consists of material which burns without residues. \ _# · ·: · · · I * t t 11 * 1 • i -2- 6- glass tube according to claim 5, characterized in that this film (5) consists of ashless paper. 7. Glass tube according to claim 1, characterized in that this film is made of glass.