Verfahren zur Herstellung von Hohlglas-Formkörpern und zugehörige Vorrichtung zur Durchführung des Verfahrens

摘要

According to known methods and devices for producing hollow glass shapes by mould blowing, the initial glass is prepared in a tank furnace glass melting process. Said tank furnace and the hollow glass production process downstream are directly connected so that a range of undesirable interactions can occur, for example uneven treatment in the tank furnace leading to an unreliable melting quality, restricted fusing of clear glass, uneconomical production due to small batch sizes, etc. The aim of the invention is to provide an economical method of producing hollow glass shaped bodies which can be carried out independently of the tank furnace glass melting process. To this end, the raw glass material join the production process in the form of semi-products (2) which correspond with the product being manufactured (1). Stocks of said semi-products are produced in a separate process and are not heated until immediately before the blowing process, at which point they are heated to the necessary blowing temperature. The semi-product (2) is advantageously cast in an optimised ring-shaped semi-product support (3). Said semi-product support (3) serves to protect the semi-product (2) during transportation and is also a functional component in production i.e. the blowing working ring in the blow mould unit (11). In this regard, a modular structure of the production device guarantees high flexibility in finishings.