Ultra-thin optical glass processing technology and processing device

Abstract

The invention relates to the technical field of ultra-thin glass, and in particular to an ultra-thin optical glass and a processing technology thereof; the ultra-thin optical glass of the invention comprises, by oxide mass percentage, 52-60% of silicon dioxide, 0-3% of boron oxide, 14-21% of aluminum oxide, 0.01-4% of lithium oxide, 7-12% of sodium oxide, 0-3% of potassium oxide, 0-3% of calcium oxide, 2-7% of strontium oxide, 0.01-4% of yttrium oxide, 0-2% of magnesium oxide, 0-2% of zinc oxide, 0-1% of zirconium dioxide, 0-3% of phosphorus pentoxide; and 0.01-0.5% of a clarifier; the invention provides a vibration mechanism in an annealing furnace, and in the process of annealing the ultra-thin optical glass, the ultra-thin optical glass is vibrated up and down at the same time, thereby promoting the release of stress in the ultra-thin optical glass, improving the annealing effect of the annealing furnace on the ultra-thin optical glass, and making the structure of the ultra-thin optical glass more stable and uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of ultra-thin glass, and in particular to an ultra-thin optical glass processing technology and a processing device thereof. Background Art

[0002] Ultra-thin optical glass is a high-tech material with excellent performance and wide application. Glass with a thickness between 0.1-1.1 mm is called ultra-thin glass, which has extremely high flatness and surface finish. This glass has excellent optical properties, such as high light transmittance, low refractive index error and good optical uniformity. It can allow light to pass smoothly without significantly changing the propagation direction and intensity of light, providing clear and accurate imaging for the optical system.

[0003] Ultra-thin optical glass is treated with special chemical strengthening or compounded with other materials to improve its physical properties such as elasticity and toughness, making it thin and tough and able to bend.

[0004] After the glass raw materials are melted in a furnace and stretched into ultra-thin optical glass through a float process, they need to be annealed to eliminate stress before being cut and packaged. The existing technology only relies on the annealing method of a traditional annealing furnace, which cannot completely eliminate the complex stress inside the glass, resulting in incomplete stress elimination inside the ultra-thin optical glass, affecting the optical performance and mechanical strength, and thus causing limitations.

[0005] To this end, we propose an ultra-thin optical glass processing technology and a processing device thereof. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an ultra-thin optical glass processing technology and a processing device thereof, which overcome the deficiencies in the prior art and aim to solve the problems in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An ultra-thin optical glass processing process, the process steps are as follows:

[0009] S1. Mix the ultra-thin optical glass raw materials according to mass percentage, and then put them into a mixer for mixing;

[0010] S2, putting the mixed raw materials into a melting furnace, heating and melting them, the high temperature in the melting furnace melts the raw materials into glass liquid, and then adding a clarifier into the melting furnace and stirring to remove bubbles and impurities in the glass liquid;

[0011] S3, the clarified and homogenized glass liquid flows continuously from the melting furnace into a tin tank filled with high-temperature molten tin liquid, and the glass liquid is flattened and thinned on the surface of the tin liquid by gravity and surface tension to form a glass ribbon with uniform thickness;

[0012] S4, the formed glass ribbon enters the annealing furnace, and the annealing furnace slowly heats, keeps warm and slowly cools the ultra-thin optical glass to eliminate the stress inside the glass; a vibration mechanism is set in the annealing furnace; the vibration mechanism vibrates the ultra-thin optical glass up and down to promote stress release and improve uniformity;

[0013] S5. The annealed glass ribbon is cut as required to obtain glass plates of specific sizes, which are then quality inspected and packaged;

[0014] An ultra-thin optical glass comprises, by oxide mass percentage, 52-60% silicon dioxide, 0-3% boron oxide, 14-21% aluminum oxide, 0.01-4% lithium oxide, 7-12% sodium oxide, 0-3% potassium oxide, 0-3% calcium oxide, 2-7% strontium oxide, 0.01-4% yttrium oxide, 0-2% magnesium oxide, 0-2% zinc oxide, 0-1% zirconium dioxide, 0-3% phosphorus pentoxide; and 0.01-0.5% clarifier.

[0015] An ultra-thin optical glass processing device comprises an annealing furnace and a vibration mechanism arranged in the annealing furnace; the vibration mechanism comprises a bracket, a vibration block and a vibration roller; mounting grooves are provided on both sides of the annealing furnace; the bracket is fixedly connected in the mounting groove; a vibration groove is provided on the bracket; the vibration block is slidably connected in the vibration groove; a vibration spring is fixedly connected in the vibration groove; the vibration spring is made of high temperature resistant material, and the vibration spring is fixedly connected to the vibration block; a vibration electric push rod is fixedly connected to the frame; a pair of vibration rollers are installed on the vibration block.

[0016] Preferably, the ultra-thin optical glass is transported in the annealing furnace by hot air floating method; a hot air blower is arranged next to the annealing furnace; a hot air floating support plate is arranged in the annealing furnace; openings are evenly opened on the hot air floating support plate; the output end of the hot air blower is connected to the hot air floating support plate.

[0017] By arranging a vibration mechanism in the annealing furnace, the ultra-thin optical glass can be vibrated up and down at the same time during the annealing process of the ultra-thin optical glass, thereby promoting the release of stress in the ultra-thin optical glass, improving the annealing effect of the annealing furnace on the ultra-thin optical glass, and making the structure of the ultra-thin optical glass more stable and uniform.

[0018] Preferably, an adjustment groove is provided on the vibration block; an adjustment block is slidably connected in the adjustment groove; an adjustment rod is fixedly connected to the adjustment block; and a vibration roller is rotatably connected to both the vibration block and the adjustment block.

[0019] Preferably, a telescopic block is slidably connected to the lower end of the adjusting block; an adjusting screw is threadedly connected to the adjusting block; and the adjusting screw is rotatably connected to the telescopic block.

[0020] The adjusting roller is driven to move by the adjusting block to increase the distance between the two adjusting rollers, thereby facilitating the ultra-thin optical glass to enter between the two vibration rollers, thereby preventing the situation where the distance between the two vibration rollers is too small and the ultra-thin optical glass is difficult to enter between the two vibration rollers, thereby improving the practical application effect of the present invention.

[0021] Preferably, the vibration rollers on the vibration block and the adjustment block are staggered in the lateral direction.

[0022] Preferably, a heat insulation board No. 1 is fixedly connected in the installation groove, and a heat insulation board No. 2 is slidably connected in the installation groove; an opening is provided on the heat insulation board No. 1; the vibration roller on the vibration block is rotationally matched with the heat insulation board No. 1; the vibration roller on the adjustment block is rotationally matched with the heat insulation board No. 2.

[0023] Beneficial effects of the present invention:

[0024] 1. The present invention provides a vibration mechanism in the annealing furnace, and during the annealing process of the ultra-thin optical glass, the ultra-thin optical glass is vibrated up and down at the same time, thereby promoting the release of stress in the ultra-thin optical glass, improving the annealing effect of the annealing furnace on the ultra-thin optical glass, and making the structure of the ultra-thin optical glass more stable and uniform.

[0025] 2. The present invention drives the adjusting roller to move by the adjusting block, thereby increasing the distance between the two adjusting rollers, thereby facilitating the ultra-thin optical glass to enter between the two vibration rollers, thereby preventing the situation where the distance between the two vibration rollers is too small and the ultra-thin optical glass is difficult to enter between the two vibration rollers, thereby improving the practical application effect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a partial cross-section of the annealing furnace and the vibration mechanism of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the vibration mechanism of the present invention after removing the first insulation board and the second insulation board;

[0028] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0029] Figure 4 for Figure 3 Cross-sectional view of the bracket, vibrating block, adjusting block and vibrating roller from the cross-sectional view angle at the middle BB.

[0030] In the figure: 1. Annealing furnace; 21. Bracket; 22. Vibrating block; 23. Vibrating roller; 24. Mounting slot; 25. Vibrating slot; 26. Vibrating spring; 27. Vibrating electric push rod; 28. Adjusting slot; 29. ​​Adjusting block; 3. Adjusting rod; 31. Telescopic block; 32. Adjusting screw; 4. No. 1 insulation board; 41. No. 2 insulation board; 42. Opening; 5. Hot air blower; 51. Hot air floating support plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1: A process for processing ultra-thin optical glass, the steps of the process are as follows:

[0033] S1. Mix the raw materials of ultra-thin optical glass according to mass percentage, and then put them into a mixer for mixing; weigh silicon dioxide, boron oxide, aluminum oxide, lithium oxide, sodium oxide, potassium oxide, calcium oxide, strontium oxide, yttrium oxide, magnesium oxide, zinc oxide, zirconium dioxide and phosphorus pentoxide, 52%, 3%, 14%, 4%, 12%, 2%, 2%, 3%, 2%, 2%, 1%, 1% and 2%, and mix them evenly in a mixer;

[0034] S2, putting the mixed raw materials into a melting furnace, heating and melting them, the high temperature in the melting furnace melts the raw materials into glass liquid, and then adding a clarifier of 0.5% by weight of the raw materials into the melting furnace and stirring to remove bubbles and impurities in the glass liquid;

[0035] S3, the clarified and homogenized glass liquid flows continuously from the melting furnace into a tin tank filled with high-temperature molten tin liquid, and the glass liquid is flattened and thinned on the surface of the tin liquid by gravity and surface tension to form a glass ribbon with uniform thickness;

[0036] S4, the formed glass ribbon enters the annealing furnace 1, and the annealing furnace 1 slowly heats, keeps warm and slowly cools the ultra-thin optical glass to eliminate the stress inside the glass; a vibration mechanism is arranged in the annealing furnace 1; the vibration mechanism vibrates the ultra-thin optical glass up and down in the annealing furnace 1 to promote the stress release of the ultra-thin optical glass and improve the uniformity of the ultra-thin optical glass;

[0037] S5. The annealed glass ribbon is cut as required to obtain glass plates of specific sizes, which are then quality inspected and packaged;

[0038] An ultra-thin optical glass, which comprises, by oxide mass percentage, 52% silicon dioxide, 3% boron oxide, 14% aluminum oxide, 4% lithium oxide, 12% sodium oxide, 2% potassium oxide, 2% calcium oxide, 3% strontium oxide, 2% yttrium oxide, 2% magnesium oxide, 1% zinc oxide, 1% zirconium dioxide, 2% phosphorus pentoxide, and 0.5% clarifier.

[0039] Embodiment 2: An ultra-thin optical glass processing device comprises an annealing furnace 1 and a vibration mechanism arranged in the annealing furnace 1; in the present invention, the vibration mechanism comprises a bracket 21, a vibration block 22 and a vibration roller 23; mounting grooves 24 are provided on both sides of the annealing furnace 1; the bracket 21 is fixedly connected in the mounting groove 24; a vibration groove 25 is provided on the bracket 21; the vibration block 22 is slidably connected in the vibration groove 25; a vibration spring 26 is fixedly connected in the vibration groove 25; the vibration spring 26 is made of high temperature resistant material, and the vibration spring 26 is fixedly connected to the vibration block 22; a vibration electric push rod 27 is fixedly connected to the frame; a pair of vibration rollers 23 are installed on the vibration block 22.

[0040] In the present invention, in S4, the ultra-thin optical glass is transported in the annealing furnace 1 by hot air floating method; a hot air blower 5 is arranged next to the annealing furnace 1; a hot air floating plate 51 is arranged in the annealing furnace 1; openings are evenly opened on the hot air floating plate 51; the output end of the hot air blower 5 is connected to the hot air floating plate 51.

[0041] In the present invention, the hot air blown by the hot air blower 5 on the annealing furnace 1 is passed into the hot air floating support plate 51, and is evenly blown upward through the openings on the hot air floating support plate 51. After the ultra-thin optical glass is transported into the annealing furnace 1 by the transport roller, it is floated by the hot air blown by the hot air floating support plate 51, so that the ultra-thin optical glass is supported by the hot air to move in the annealing furnace 1.

[0042] When the ultra-thin optical glass passes through between the two vibration rollers 23, the vibration electric push rod 27 drives the vibration block 22 to vibrate up and down, so that the two vibration rollers 23 drive the ultra-thin optical glass to vibrate together on the upper and lower sides of the ultra-thin optical glass; the ultra-thin optical glass itself has elasticity and toughness. During the vibration of the ultra-thin optical glass, the stress in the ultra-thin optical glass is more evenly distributed in the entire glass structure, thereby improving the annealing effect of the annealing furnace 1 and reducing the residual stress in the ultra-thin optical glass. At the same time, the vibration helps to rearrange the atoms or molecules inside the ultra-thin optical glass, promotes the relaxation process of the ultra-thin optical glass structure, and makes the physical properties of the ultra-thin optical glass more stable and uniform;

[0043] The present invention provides a vibration mechanism in the annealing furnace 1, and during the annealing process of the ultra-thin optical glass, the ultra-thin optical glass is vibrated up and down at the same time, thereby promoting the release of stress in the ultra-thin optical glass, improving the annealing effect of the annealing furnace 1 on the ultra-thin optical glass, and making the structure of the ultra-thin optical glass more stable and uniform.

[0044] In the present invention, the vibration block 22 is provided with an adjustment groove 28; an adjustment block 29 is slidably connected in the adjustment groove 28; an adjustment rod 3 is fixedly connected to the adjustment block 29; and a vibration roller 23 is rotatably connected to both the vibration block 22 and the adjustment block 29.

[0045] In the present invention, the lower end of the adjusting block 29 is slidably connected with a telescopic block 31 ; the adjusting block 29 is threadedly connected with an adjusting screw 32 ; and the adjusting screw 32 is rotatably connected with the telescopic block 31 .

[0046] In the present invention, when the ultra-thin optical glass is introduced into the annealing furnace 1 and enters between the two vibration rollers 23, the adjusting rod 3 is pulled to make the adjusting block 29 move upward with the corresponding vibration roller 23, so that the distance between the two vibration rollers 23 is increased, which facilitates the ultra-thin optical glass to enter between the two vibration rollers 23, and then the adjusting block 29 and the corresponding vibration roller 23 are moved downward, so that the two vibration rollers 23 clamp the ultra-thin optical glass up and down; in the present invention, the telescopic block 31 is moved up and down by rotating the adjusting screw 32, so as to adjust the distance between the two vibration rollers 23 to adapt to ultra-thin optical glasses of different thicknesses;

[0047] The present invention drives the adjustment roller to move by the adjustment block 29, thereby increasing the distance between the two adjustment rollers, thereby facilitating the ultra-thin optical glass to enter between the two vibration rollers 23, thereby preventing the situation where the distance between the two vibration rollers 23 is too small and the ultra-thin optical glass is difficult to enter between the two vibration rollers 23, thereby improving the practical application effect of the present invention.

[0048] In the present invention, the vibration block 22 and the vibration rollers 23 on the adjustment block 29 are arranged in a staggered manner in the lateral direction.

[0049] In the present invention, a No. 1 insulation board 4 is fixedly connected in the installation groove 24, and a No. 2 insulation board 41 is slidably connected in the installation groove 24; an opening 42 is provided on the No. 1 insulation board 4; the vibration roller 23 on the vibration block 22 is rotationally matched with the No. 1 insulation board 4; the vibration roller 23 on the adjustment block 29 is rotationally matched with the No. 2 insulation board 41.

[0050] In the present invention, the two vibration rollers 23 are staggered left and right, so when the two vibration rollers 23 clamp the ultra-thin optical glass, the position deviation of the two staggered vibration rollers 23 causes the ultra-thin optical glass to bend, so after clamping, the ultra-thin optical glass will not be damaged due to the strong clamping force, thereby improving the use effect of the present invention;

[0051] In the present invention, a first insulation board 4 and a second insulation board 41 are arranged in the installation groove 24 to insulate the components in the installation groove 24 . Meanwhile, an opening 42 is arranged on the first insulation board 4 , which does not affect the movement of the vibration roller 23 driven by the adjustment block 29 .

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected; the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. An ultra-thin optical glass processing device, characterized in that: The invention comprises an annealing furnace (1) and a vibration mechanism arranged in the annealing furnace (1); the vibration mechanism comprises a bracket (21), a vibration block (22) and a vibration roller (23); mounting grooves (24) are provided on both sides of the annealing furnace (1); the bracket (21) is fixedly connected in the mounting groove (24); a vibration groove (25) is provided on the bracket (21); the vibration block (22) is slidably connected in the vibration groove (25); a vibration spring (26) is fixedly connected in the vibration groove (25); the vibration spring (26) is made of a high temperature resistant material and is fixedly connected to the vibration block (22); a vibration electric push rod (27) is fixedly connected to the bracket (21); a pair of vibration rollers (23) are installed on the vibration block (22); The ultra-thin optical glass is transported in an annealing furnace (1) by means of hot air floating. A hot air blower (5) is arranged next to the annealing furnace (1). A hot air floating plate (51) is arranged in the annealing furnace (1). Openings are evenly formed on the hot air floating plate (51). The output end of the hot air blower (5) is connected to the hot air floating plate (51). The vibration block (22) is provided with an adjustment groove (28); an adjustment block (29) is slidably connected in the adjustment groove (28); an adjustment rod (3) is fixedly connected to the adjustment block (29); and a vibration roller (23) is rotatably connected to both the vibration block (22) and the adjustment block (29); The lower end of the adjusting block (29) is slidably connected to a telescopic block (31); an adjusting screw (32) is threadedly connected to the adjusting block (29); the adjusting screw (32) is rotatably connected to the telescopic block (31); The vibration block (22) and the vibration rollers (23) on the adjustment block (29) are arranged in a staggered manner in the lateral direction.

2. The ultra-thin optical glass processing device according to claim 1, characterized in that: A first heat insulation board (4) is fixedly connected in the installation groove (24), and a second heat insulation board (41) is slidably connected in the installation groove (24); an opening (42) is provided on the first heat insulation board (4); the vibration roller (23) on the vibration block (22) is rotationally matched with the first heat insulation board (4); and the vibration roller (23) on the adjustment block (29) is rotationally matched with the second heat insulation board (41).

3. A process for processing ultra-thin optical glass, which is applicable to an ultra-thin optical glass processing device as claimed in claim 1 or 2, characterized in that: The steps of the process are as follows S1. Mix the ultra-thin optical glass raw materials according to mass percentage, and then put them into a mixer for mixing; S2, putting the mixed raw materials into a melting furnace, heating and melting them, the high temperature in the melting furnace melts the raw materials into glass liquid, and then adding a clarifier into the melting furnace and stirring to remove bubbles and impurities in the glass liquid; S3, the clarified and homogenized glass liquid flows continuously from the melting furnace into a tin tank filled with high-temperature molten tin liquid, and the glass liquid is flattened and thinned on the surface of the tin liquid by gravity and surface tension to form a glass ribbon with uniform thickness; S4, the formed glass ribbon enters the annealing furnace (1), and the annealing furnace (1) slowly heats, keeps the ultra-thin optical glass warm, and slowly cools it down to eliminate the stress inside the glass; a vibration mechanism is arranged in the annealing furnace (1); the vibration mechanism vibrates the ultra-thin optical glass up and down to promote stress release and improve uniformity; S5. The annealed glass ribbon is cut as required to obtain glass plates of specific sizes, which are then quality inspected and packaged; An ultra-thin optical glass comprises, by oxide mass percentage, 52-60% silicon dioxide, 0-3% boron oxide, 14-21% aluminum oxide, 0.01-4% lithium oxide, 7-12% sodium oxide, 0-3% potassium oxide, 0-3% calcium oxide, 2-7% strontium oxide, 0.01-4% yttrium oxide, 0-2% magnesium oxide, 0-2% zinc oxide, 0-1% zirconium dioxide, 0-3% phosphorus pentoxide; and 0.01-0.5% clarifier.

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