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Optical glass square blank preparation device and blank preparation method

A technology for optical glass and preparation equipment, which is applied in glass manufacturing equipment, glass production, glass molding, etc., which can solve the problems of difficulty in ensuring the appearance size and internal stripe quality, and difficulty in solidification and fixing, so as to avoid large pieces of cutting process, reduce cutting material waste, and improve production efficiency

Active Publication Date: 2020-08-21
HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The optical glass sheet cannot be made into smaller blocks because of the limitation of the forming technology. The smaller the cross-sectional area of ​​the formed glass sheet during smelting, the faster the pulling forward speed is required under the same output. The more difficult it is to coagulate and fix in the mold, the appearance size and the quality of internal stripes are difficult to guarantee

Method used

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  • Optical glass square blank preparation device and blank preparation method
  • Optical glass square blank preparation device and blank preparation method
  • Optical glass square blank preparation device and blank preparation method

Examples

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preparation example Construction

[0023] A method for preparing an optical glass square blank, characterized in that it comprises the following steps:

[0024] a. The molten glass melted and homogenized in the kiln is diverted into the forming mold 02 through the leakage pipe 01; the groove width of the forming mold 02 is an integer multiple of the width of the square blank to be processed;

[0025] b. The mold cooling device 03 assists the forming mold 02 to conduct conduction cooling on the bottom and both sides of the molten glass, and gradually solidifies the molten glass by absorbing the heat on the surface of the molten glass, forming the molten glass to make glass strips of required thickness;

[0026] c. The glass strip is driven by the tractor 05 to run towards the entrance of the annealing furnace, and at the same time blows and cools, and the glass strip is drawn to the conveyor belt 07 in the annealing furnace 08;

[0027] d. After the glass strip enters the annealing furnace 08 with a certain temp...

Embodiment

[0031] Example: A certain grade of optical glass, the specific gravity is 3.66 grams per cubic centimeter, the glass softening temperature is 655°C, and the output of the kiln is 135 liters per day. Use the device and method of this invention to prepare the process of optical glass square blank as follows:

[0032] The homogenized molten glass flows into the forming mold 02 through the leakage pipe 01, and the forming mold 02 limits the width of the glass molten to 32mm; the tractor 05 pulls the glass strip at a speed of 346mm per minute, and the glass The thickness of the liquid is controlled to about 8.5mm. The mold cooling device 03 assists the forming mold 02 to conduct conduction cooling on the bottom and both sides of the molten glass to promote the solidification of the glass into strips. The glass strip is drawn onto the annealing furnace 08, and advances synchronously with the conveyor belt 07 of the annealing furnace 08. The press-cutting machine 06 is installed at...

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Abstract

The name of the invention is an optical glass square blank preparation device and a blank preparation method, and belongs to the technical field of optical glass smelting one-step molding. The problems that an existing optical element blank material needs to be slit from a strip material, materials are wasted, and machining efficiency is affected are mainly solved. The device is mainly characterized by comprising a forming die, a die cooler, a traction machine, a pressing and cutting machine and an annealing furnace, wherein the groove width of the forming die is integral multiples of the width of a square blank to be machined; and the pressing and cutting machine is installed in the annealing furnace and is provided with a longitudinal pressing and cutting blade and a transverse pressingand cutting blade which are used for slitting according to the width and the length of the square blank to be machined. A square blank which can be directly used for secondary profiling or cold machining can be manufactured in the optical glass production link, the large block slitting procedure is omitted, cutting material waste is greatly reduced, and the production efficiency of secondary profiling or cold machining is improved. The device and the method are suitable for one-step molding of crown glass, flint glass, dense barium flint glass and part of lanthanide glass.

Description

technical field [0001] The invention belongs to the technical field of optical glass smelting and one-shot forming. In particular, it relates to a preparation device and method for directly forming a small cuboid blank from optical glass in one-time molding, and is mainly used in the primary molding process of optical glass smelting. Background technique [0002] The optical glass sheet usually has a cross-sectional area of ​​120mm×8mm or more, and the length direction can be arbitrarily cut within the range of 100-500mm. As the blank material of optical elements, it is processed into optical element blanks in two ways: one is slitting Small pieces are made into optical element blanks by secondary pressing, and the other is cut into small pieces and made into optical element blanks by grinding and other cold processing methods. In short, when optical glass sheets are further processed into optical element blanks, they must first be cut into small blocks of the required shap...

Claims

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Application Information

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IPC IPC(8): C03B19/02C03B17/00C03B21/02
CPCC03B19/02C03B17/00C03B21/02Y02P40/57
Inventor 周希光徐光以杨睿胡弦寇小勇
Owner HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
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