DD207697A1 - METHOD OF MACHINING OUTBOX GLASS - Google Patents

Abstract

OBJECT OF THE INVENTION IS THE JOINT MACHINERY PROCESSING OF DIFFERENT GLASSES TO OVERNIGHTS. CHARACTERISTICS ARE SHAPED TIMELY AND SPLENDID BY EACH OTHER A GLASS POST BY MACHINE PRESSING AND / OR BUBBLE TO A HOLLOW GLASS BELT AND ANOTHER GLASS POST BY MACHINE SLIDING TO A THOUGHFUL FORMWORK POSITIONING BUBBLE IN THE CAVITY OF THE FORMULA BUBBLE UP TO PERMANENTLY AT FORMLING, WITH THIS TOGETHER SCHLEUDERFORM TAKEN, WITH MELTED FOLLOWING AND A COMPLETED FORM, IN THIS BREATHTAKEN AND THEN REMOVED. THE METHOD IS APPLICABLE TO MECHANICAL MANUFACTURING OF EXCESSIVE WOOD AND GLASS.

Description

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Process for the manufacture of cased glass field of use

The invention relates to a method for the mechanical production of cased glass, in particular of colored hollow glass articles. >

Characteristic of the known technical solutions

Colored hollow glass articles are produced manually by sinking a glass tube made by means of a glass-making whistle into a hood or funnel made of colored glass and bringing it into contact with the colored glass. Thereafter, the parison with the adhering colored glass is introduced into a preheating drum, parison and colored glass are fused together and then deformed by conventional means manual shaping of the glass to the finished product.

In the manual production of hoods or funnels, a colored glass item is first inflated to a ball. For hoods, the ball is then dropped into a double-walled shell and knocked off the pipe. After picking up the double-walled shell by means of sunken glass tubing, the outer wall of the double-walled shell is sprinkled with barrels and knocked off. The resulting hood adhering to the parison is then fused with it in a preheating drum.

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Pur funnel, for example, for the production of Überfangrömern, the colored glass ball is partially heated in the area opposite the pipe and blown a hole. Thereafter, this ball is formed into a funnel and taped into a funnel holder. The funnel is picked up with a Hellglaskülbel and fused in a preheating drum with this. During further processing to Überfangrömern a stalk is attached to the left in the area of the hole of colored glass mirror.

The manual production of hoods or funnels binds highly qualified glassmakers, who could also be used for the final molding · Therefore, already sought ways to machine prefabrication of hoppers. ,

In the machine. Prefabrication of hoods or funnels they are mechanically pressed or blown, then cooled and after blowing off a rope break point for the mirror or blown hood prefabricated hoods or funnels are stored and heated if necessary to processing temperature and manually processed as in their manual "production.

The use of machines by pressing or blowing prefabricated hoods or funnels has some major disadvantages: In pressed hoods or funnels often occur in the process of manual processing Schweberigkeiten that lead to the reduction of the quality of PertigerZeugnis, because by pressing technology, the required thinness not is guaranteed. While blowing a better thinness is achievable, but there is a high loss of glass, since about half of the blown ball must be blasted and depending on the type of colored glass can not be used again to melt. · '^.

The break-off takes place in the cold state and requires a flash cooling and, when used, a heating to processing temperature additionally energy and manpower are needed.

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Known machine molding processes for hollow glassware work in two Pormgebungsschritten: deformation of a parison by pressing or blowing in m Prei3-blown and blown-blown process and by pressing a blank and bubbles of the parison without form in the rotary blown process and final molding by blowing the parison in one Finished form · While the press-blow process and the blow-and-blow process dry out the finished mold in the finished blow mold, the parison is rotationally inflated in the rotary blow-molding process. »Thin-walled products can thus be produced without marking.

Object of the invention

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The aim of the invention is a rationalization of the production of overlaid glass, in particular of colored hollow glass articles by mechanization of the shaping processes.

Explanation of the essence of the invention

The object of the invention is the joint mechanical processing of two different glasses to Überfangglasartikeln.

It has been found that by spinning a glass gob of defined mass and temperature in a mold rotating around its vertical axis of symmetry moldings of sufficient thinness and the production of overlay products of corresponding wall thickness distribution can be produced which are taken up by a freely blown parison and fused together can be blown out in a mold.

According to the invention temporally and spatially next to each other a glass gob is mechanically preformed by pressing and / or blowing mechanically to a parison and another gob of defined mass and temperature by spinning to a thin-walled molding to solve the task. The preparation for a parabola

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formed gob is preferably in bright glass items and thrown to a molded glass gob a stained or Opalglasposten. The molding may, for example, the shape of a shell, a funnel or ring ', depending on the desired design purpose of the overlap. The parison is positioned in the cavity of the molding and inflated until it adheres to the molding, then removed together with this from the spinning mold, fused under the action of heat and then entered into 'a finished mold and preferably blown there rotating.

The parison is pivoted by means of a pivotable Külbeltäger, for example, on an annular Külbelträger hanging over a spun in the form of a centrifugal, molded and positioned in the cavity of the molding .. By means of a. On the Külbelträger with parison placed Blaskopfes the parison by blowing Compressed air inflated until it adheres to the molding. Both are then taken from Külbelträger hanging from the spin mold and pivoted into a heated zone and fused together. Thereafter, both are pivoted by means of Külbelträger to a preferably multi-part finished mold, positioned in this and finished blown by means of blowing head by compressed air. Thereafter, the article is pivoted by means of Külbelträger on the finished mold and separated from the Külbelträger.

The positioning and re-release of parison and molding can be carried out by raising and lowering the parison carrier as well as the mold.

In order to ensure a rotation of the parison with respect to the flames of the heated zone or the finished mold, either the parison carrier with parison or the heated zone or the finished mold is made to rotate.

When hurling hoppers or rings, the cohesive forces are overcome in the region of the axis of rotation by introducing a compressed air nozzle into the deforming gob

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and thereby, the required hole, made in the molding. The blast of compressed air is introduced through, an opening in the assialen area, the mold bottom. It is advantageous to drive through a mandrel provided with the blow opening, through the mold bottom into the deforming gia post.

Funnels or rings manufactured in this way are used, in particular, for stemware articles in the manufacture of the over-clad upper part in order to achieve a mirror-free mirror for the stem approach.

For Stielglasherstellung is then a by. Presset prefabricated stem in the finished mold positioned so that it forms part of the mold bottom. The parison melted with the molding is then inflated in the mold onto the stem. The parison and stalk must rotate synchronously relative to the finished mold.

Claims (8)

W βέ » , 3rfindunp; sanspruch Process for the manufacture of cased glass, in particular colored glassware such as bowls, cups, vases or cup tops, in which two goblets of different glasses are mechanically preformed, fused together and finish machined, characterized in that a glass gob adjoins each other in time and space in per se known by pressing and / or blowing mechanically into a parison and · another gob of defined mass and temperature, for example a colored glass or opal glass post, in per se known manner by spinning in one um its vertical axis of symmetry of rotating form are preformed mechanically under a thin-walled molding, for example a shell, a funnel or a ring, the parison positioned in the cavity of the molded article until inflated, inflated on the molding, taken together with it from the mold, both merged together and inflated together in a finished mold, preferably rotating. - 2. The _method of item 1, characterized in that in the mold, a preformed by pressing and / οder bubbles parison via removable Külbelträger, for example, an annular Külbelträger located pivoted centrifugally molding a positioned in the cavity of the molding, and by means of the Külbelträger with Külbel mounted Blaskopf it 'inflated by IDinblasen of compressed air to adhere to the molding, both taken from the centrifugal mold, pivoted by means of Külbelträger in a heated zone, fused together in this, then to a preferably multi-part'; Finish mold · pivoted positioned in this means _v aufgesetzten'Blaskopfes-through / blowing compressed air fartiggeblasan and * then pivoted from the finish mold and separated from Külbelträger is "- U £ 3. Method (s) (1) and (2), characterized in that Züloei and Jcrnling are positioned and released by lifting and lowering the lollipop or pom. 4. Method according to ^items 1 and 2, ^ ³ ^ ^ηηη3Θ ^ ° ^ ^ηΘ ^ in that luilbel carrier or hardened zone and sertigforin. rotate. 5. Method according to item 1, above, is characterized by the fact that during the spinning of hoppers or fins, cohesive forces in the entire region of the deforming gob are overcome by the introduction of a compressed-air impact. O. Procedure by point. 5, sekennselehnet in that a Durckluftstcß inserted through an opening in the aiaiie area of the Ponnenbotens in the gauging goblet. directs vri.rd. 7- Verfaliren according Pimict 5 and _6} characterized in that, a bias provided with an opening blade is driven through the ground IPorrae in the deforming Gla.sposten. 8. Process according to items 1 to 7, characterized in that a stalk prefabricated by pressing is positioned in the finished mold and the bowl is inflated with the rotating bottle inflated on the synchronously rotating stalk.