阅读说明：本技术 一种光学玻璃加工用瓷盒及其制作方法 (Porcelain box for optical glass processing and manufacturing method thereof ) 是由 罗松波 刘威 于 2020-11-25 设计创作，主要内容包括：本发明涉及光学玻璃技术领域,公开了光学玻璃加工用瓷盒及其制作方法,包括成型块、设置在成型块上表面的若干成型槽,所述成型块材料是石英陶瓷。本发明具有以下优点和效果：采用石英陶瓷制作瓷盒,由于石英陶瓷硬度高,在使用过程中不会产生磨损,在24h连续作业的条件下,石英陶瓷瓷盒使用寿命长达2～3年,相对于传统的硅藻泥、耐火泥瓷盒,使用寿命延长了十倍,由于玻璃加工工艺中瓷盒用量较大,采用石英陶瓷瓷盒可大幅度降低生产成本,提高企业利润率。(The invention relates to the technical field of optical glass, and discloses a porcelain box for processing optical glass and a manufacturing method thereof. The invention has the following advantages and effects: the quartz ceramic porcelain box is adopted to manufacture the porcelain box, because the hardness of the quartz ceramic is high, the quartz ceramic porcelain box can not be worn in the using process, under the condition of 24h continuous operation, the service life of the quartz ceramic porcelain box is as long as 2-3 years, and compared with the traditional diatom ooze and fire clay porcelain box, the service life of the quartz ceramic porcelain box is prolonged by ten times, because the using amount of the porcelain box in the glass processing technology is large, the production cost can be greatly reduced by adopting the quartz ceramic porcelain box, and the profit rate of enterprises is improved.)

1. The utility model provides a porcelain box for optical glass processing which characterized in that: the forming device comprises a forming block (1) and a plurality of forming grooves (2) arranged on the upper surface of the forming block (1), wherein the forming block (1) is made of quartz ceramic.

2. The porcelain box for optical glass processing according to claim 1, wherein: the surface roughness of the forming groove (2) is not more than 0.1 mu m.

3. The porcelain box for optical glass processing according to claim 1, wherein: the ratio of the thickness of the forming block (1) to the depth of the forming groove (2) is 5: 1-10: 1.

4. The porcelain box for optical glass processing according to claim 1, wherein: the forming groove (2) is hemispherical, and the ratio of the depth of the forming groove (2) to the radius of the hemispherical surface is 1: 4-1: 8.

5. The porcelain box for optical glass processing according to claim 1, wherein: the forming block (1) is of a long strip shape, a plurality of forming grooves (2) are uniformly formed in the upper surface of the forming block (1), and the forming grooves (2) are arranged in a row.

6. The porcelain box for optical glass processing according to claim 1, wherein: the edge of the forming block (1) is provided with an arc chamfer.

7. A method for manufacturing a porcelain case for optical glass processing according to any one of claims 1 to 6, wherein: the method comprises the following steps:

s1, slotting: selecting a square quartz ceramic blank, and grooving the surface of the blank to form a plurality of forming grooves (2) arranged in a square matrix shape;

s2, cutting: cutting the blank provided with the forming grooves (2) into strip-shaped forming blocks (1) as required, wherein each forming block (1) is provided with a row of forming grooves (2);

s3, grinding: polishing the molding groove (2) on the molding block (1) to ensure that the roughness of the inner surface of the molding groove (2) is not more than 0.1 mu m;

s4, chamfering: chamfering the edge of the forming block (1);

s5, cleaning: and cleaning the chamfered forming block (1) by water to remove surface dust, and airing to obtain the finished porcelain box.

Technical Field

The invention relates to the technical field of optical glass, in particular to a porcelain box for processing optical glass and a manufacturing method thereof.

Background

Before glass is processed into optical devices, it is often necessary to process a large glass raw material (hereinafter referred to as a glass master) into preforms of various specifications according to the products of the various specifications. A method for processing glass mother plate into preformed body includes such steps as cutting the mother plate into glass blanks meeting the requirement of a certain weight, grinding, softening the glass blanks by heating them to near softening point, and press shaping by glass shaper to obtain the primary products meeting the requirement of designed weight and shape.

The quality of the preform is directly related to the quality of the final optical device product. In the application, coated glass blanks are placed on a porcelain box and are conveyed into a heating zone in a softening furnace through a conveying device to be heated in a sectional type in different areas, so that the glass blanks are softened. The porcelain box adopted by the application is prepared from diatomite and has the following defects: 1. the porcelain box is used as a carrier of the glass blank and needs to slide in a softening furnace during conveying, the diatomite has low hardness, abrasion can be caused in the friction process, the service life is short, and the service life is usually 2-3 months; 2. the porcelain box made of diatomite can generate more dust in the friction process, and the diatomite dust can be attached to the glass blank in the softening furnace, so that the subsequent transparency of the optical glass finished product is reduced, and the finished product rate of the optical glass is greatly reduced; 3. the ceramic box made of diatomite has a large expansion coefficient, and cracks are easily generated under the action of thermal expansion and cold contraction, so that the softened glass blank is adhered in the ceramic box.

Disclosure of Invention

The invention aims to provide a porcelain box for processing optical glass and a manufacturing method thereof, which have the effects of long service life and high yield of manufactured optical glass.

The technical purpose of the invention is realized by the following technical scheme: the forming device comprises a forming block and a plurality of forming grooves arranged on the upper surface of the forming block, wherein the forming block is made of quartz ceramic.

Through adopting above-mentioned technical scheme, when processing optical glass, at first put into the shaping inslot of shaping piece with quantitative glass blank granule, then adopt conveyer with shaping piece propelling movement to softening furnace, heat softening to glass blank, when making optical glass lens, set up a plurality of shaping groove on the shaping piece and can carry out the ration to the glass blank material of every glass lens, directly take out from the shaping inslot and can send into forming die shaping, convenient and fast after softening.

The invention is further provided with: the surface roughness of the forming groove is not more than 0.1 μm.

By adopting the technical scheme, the surface of the quartz ceramic can be processed into a smooth mirror surface, the surface roughness of the forming groove is not more than 0.1 mu m, the glass blank can not be adhered to the surface of the quartz ceramic after being softened in the forming groove, and the softened surface of the glass blank can be smooth due to the low surface roughness of the forming groove, so that the lens after being pressed and formed has higher smoothness.

The invention is further provided with: the ratio of the thickness of the forming block to the depth of the forming groove is 5: 1-10: 1.

Through adopting above-mentioned technical scheme, the shaping piece thickness is thicker, can improve the stand wear and tear degree of shaping piece, and the shaping groove is lighter, and after thicker shaping piece got into the softening furnace, can make the glass blank of arranging in the shaping inslot be located softening furnace center, made glass blank fully heated.

The invention is further provided with: the forming groove is hemispherical, and the ratio of the depth of the forming groove to the radius of the hemispherical surface is 1: 4-1: 8.

By adopting the technical scheme, the forming groove is of a hemispherical shape, after the forming block is heated in the softening furnace, the forming groove of the hemispherical shape can uniformly transfer heat to the glass blank, so that the glass blank is uniformly heated, the phenomenon that the inner layer of the glass blank is not softened due to overhigh heat of part of the glass blank is avoided, or the inner layer of the glass blank is not softened due to overlow heating temperature, the molten glass is easy to generate the irregular shape in the pressing forming process, the inner layer of the glass blank is not softened and then can be subjected to the pressing forming, the forming body is cracked, the forming groove of the hemispherical shape can enable the glass blank to be uniformly heated in the forming groove, the depth of the forming groove is shallow, the glass blank in the forming groove can be prevented from being accumulated, and the temperature of the inner layer glass blank is prevented from being lower.

The invention is further provided with: the forming block is of a long strip shape, a plurality of forming grooves are uniformly formed in the upper surface of the forming block, and the forming grooves are arranged in a row.

Through adopting above-mentioned technical scheme, banding shaping piece is favorable to conveying in the softening furnace, and the shaping groove is arranged into a line, is convenient for empty the glass blank who softens in the shaping groove one by one.

The invention is further provided with: and the edge of the forming block is provided with an arc chamfer.

Through adopting above-mentioned technical scheme, the shaping piece edge sets up the arc chamfer, is convenient for the workman to hold.

A method for manufacturing a porcelain box for processing optical glass comprises the following steps: the method comprises the following steps:

s1, slotting: selecting a square quartz ceramic blank, and grooving the surface of the blank to form a plurality of forming grooves arranged in a square matrix shape;

s2, cutting: cutting the blank provided with the forming grooves into strip-shaped forming blocks as required, wherein each forming block is provided with a row of forming grooves;

s3, grinding: polishing the molding groove on the molding block to ensure that the roughness of the inner surface of the molding groove is not more than 0.1 mu m;

s4, chamfering: chamfering the edge of the forming block;

s5, cleaning: and cleaning the chamfered forming block with water to remove surface dust, and airing to obtain the finished porcelain box.

The invention has the beneficial effects that:

1. the quartz ceramic porcelain box is adopted to manufacture the porcelain box, because the hardness of the quartz ceramic is high, the quartz ceramic porcelain box can not be worn in the using process, under the condition of 24h continuous operation, the service life of the quartz ceramic porcelain box is as long as 2-3 years, and compared with the traditional diatom ooze and fire clay porcelain box, the service life of the quartz ceramic porcelain box is prolonged by ten times, because the using amount of the porcelain box in the glass processing technology is large, the production cost can be greatly reduced by adopting the quartz ceramic porcelain box, and the profit rate of enterprises is improved.

2. The quartz ceramic is resistant to high temperature, does not deform at a temperature of about 1000 ℃ in a softening furnace as a glass softening carrier, and does not crack even under a condition of rapid cooling and rapid heating.

3. The quartz ceramic does not generate dust in the using process, the dust content in the softening furnace can be greatly reduced, the dust is prevented from being doped into the glass blank, the yield of the glass lenses can be obviously improved, when the diatom ooze porcelain box is adopted, the yield of the glass lenses is about 92 percent, after the quartz ceramic porcelain box is adopted, the yield of the glass lenses can be improved to 97 percent, and the production cost of the glass lenses can be greatly reduced.

4. The quartz ceramic box has high surface smoothness, the glass blank can not be adhered to the surface of the forming groove after being softened in the forming groove, and the surface of the softened glass blank can also be kept smooth, thereby being beneficial to the subsequent lens press forming.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of the present invention.

In the figure, 1, a forming block; 2. and (5) forming a groove.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

Example 1: as shown in figure 1, a porcelain box for optical glass processing, including the shaping piece 1, shaping piece 1 adopts quartz ceramic to make, and shaping piece 1 upper surface is provided with four shaping grooves 2, and four shaping grooves 2 become to arrange in a row, and the 2 surface roughness in shaping groove is not more than 0.1 mu m, and shaping piece 1 thickness is 5cm, and the 2 degree of depth in shaping groove is 0.5cm, and shaping groove 2 is the hemisphere type, and the maximum radius in shaping groove 2 is 4cm, and shaping piece 1 edge sets up the arc chamfer.

Example 2: the utility model provides a porcelain box is used in optical glass processing, includes shaping piece 1, and shaping piece 1 adopts quartz ceramic to make, and shaping piece 1 upper surface is provided with four shaping grooves 2, and four shaping grooves 2 become to be listed as and arrange, and shaping groove 2 roughness is not more than 0.1 mu m, and shaping piece 1 thickness is 5cm, and shaping groove 2 degree of depth is 1cm, and shaping groove 2 is the hemisphere type, and the biggest radius of shaping groove 2 is 4cm, and shaping piece 1 edge sets up the arc chamfer.

The method for manufacturing the porcelain case for optical glass processing in the embodiments 1 and 2 includes the following steps:

s1, slotting: selecting a square quartz ceramic blank, and grooving the surface of the blank to form a plurality of forming grooves 2 arranged in a square matrix shape;

s2, cutting: cutting the blank provided with the forming grooves 2 into strip-shaped forming blocks 1 as required, wherein each forming block 1 is provided with a row of forming grooves 2;

s3, grinding: polishing the molding groove 2 on the molding block 1 to ensure that the roughness of the inner surface of the molding groove 2 is not more than 0.1 mu m;

s4, chamfering: chamfering the edge of the forming block 1;

s5, cleaning: and cleaning the chamfered forming block 1 by water to remove surface dust, and airing to obtain the finished porcelain box.

After the porcelain boxes in the embodiments 1 and 2 are put into production, the service life of the quartz ceramic porcelain box is 2-3 years, and the yield of the glass lens is more than 97%.