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Glass plate molding device

A glass plate, glass technology, applied in glass forming, glass reshaping, glass manufacturing equipment, etc.

Active Publication Date: 2021-08-31
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned molding apparatus, along with the complexity and mass production of the molding shape of the glass material, the productivity, shape / surface texture of the molded product There is still room for improvement in terms of quality and other aspects

Method used

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  • Glass plate molding device
  • Glass plate molding device
  • Glass plate molding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0186] Table 1 summarizes the forming conditions of the glass plates and the forming results thereof.

[0187] use figure 1 The molding device shown includes various forming methods such as forming by self-weight bending only, full-scale press forming, press forming by pressing only the edge of the outer peripheral portion of the glass, and forming by combined press forming and vacuum forming. A glass plate (material: Dragontrail (registered trademark)) having a size of 100×50 mm (thickness t=1.1 mm) was molded.

[0188] The forming shape of the glass plate is set to Figure 16 Test examples 1, 2, and 2 with a single radius of curvature shown in (A) Figure 16 Test example 3 of the S-shape shown in (B), Figure 16 Test example 4 of the J-shape shown in (C). The radius of curvature R of the test example 1 was 2000 mm, and the radius of curvature R of the test example 2 was 800 mm. In addition, the radius of curvature of the S-shaped test example 3 was 2000 mm for R1, 100 m...

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PUM

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Abstract

A glass plate molding device comprises: a first mold upon which glass plate is supported; at least one second mold clamped to the first mold; at least one preheating stage that preheats a glass plate supported by the first mold; at least one molding stage that molds the heated glass plate between the first mold and the second mold; at least one cooling stage that gradually cools the molded glass plate; and a mold transfer unit that transfers the first mold, in order, between the preheating stage, the molding stage, and the cooling stage. The second mold in the molding stage abuts the glass plate only at the outer circumference of the glass, between the first and second molds.

Description

technical field [0001] The present invention relates to a forming apparatus for glass sheets. Background technique [0002] Various methods of heating and softening a glass material accommodated in a molding die and pressing it to produce glass-made press-molded products are employed. For example, there has been proposed a forming apparatus that sequentially conveys a plate-shaped glass material to heating, pressing, and cooling stages installed in a chamber, and continuously forms press-formed products by each stage (Patent Document 1). [0003] In such a forming apparatus, the forming mold is brought to a predetermined temperature during pressing, whereby the glass material is maintained at a heating temperature sufficient for processing the glass material. In addition, the formed glass material is cooled, solidified, and finally cooled to a temperature below 200° C. where the forming mold is not oxidized. As described above, by accurately transferring the shape of the f...

Claims

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Application Information

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IPC IPC(8): C03B23/03
CPCC03B23/03
Inventor 井本祐司金杉谕
Owner ASAHI GLASS CO LTD
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