Hot bending furnace for ultra-large-area glass

Abstract

The invention relates to the field of a glass forming device, in particular to a hot bending furnace for an ultra-large-area glass. The hot bending furnace comprises a furnace body framework with a closed cavity, wherein a plurality of fixed heating pipes distributed along a width direction of the furnace body framework and a plurality of lifting heating pipes distributed along a length directionof the furnace body framework are arranged on the top of the closed cavity of the furnace body framework in a separating manner, the bottom of the closed cavity of the furnace body framework is provided with molds which are distributed along the length direction of the furnace body framework and a plurality of heating wires distributed along the length direction of the furnace body framework, andtwo sides of the mold are respectively provided with supporting rods distributed along the length direction of the furnace body framework and used for supporting the glass in a anxiliary mode and pressing bars distributed along the length direction of the furnace body framework and pressing the glass towards the mold direction. By adopting the hot bending furnace, the problems that when the ultra-large-area glass (the width is greater than 3 m, and the length is greater than 10 m) is formed in a hot bending manner, the glass is likely to break, the radian cannot be ensured, the edge straightness cannot be ensured and the glass optical quality is poor can be solved.

Description

technical field [0001] The invention relates to the field of glass forming equipment, in particular to a hot bending furnace for super large plate glass. Background technique [0002] The production process of large-scale curved glass used in building curtain walls, process walls, etc. is: first fix the special abrasive tool in the hot bending equipment, put the flat glass on the special mold, and then heat it according to a certain heating process. The flat glass becomes soft after reaching a certain temperature, and is bent and bonded to the abrasive tool under the action of its own weight and external force assistance. [0003] When hot-bending super-large-format glass (more than 3 meters in width and more than 10 meters in length), the existing hot-bending equipment has the following shortcomings: 1. It is not easy to position the glass when it is placed on the support of the mold, which affects the local strength of the mold and the glass. The requirements are high, an...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a solution to the problem that the glass is easily broken, the radian cannot be guaranteed, the edge straightness cannot be guaranteed, and the optical quality of the glass is poor. Hot bending furnace for super large plate glass

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