CN102303946A - Method and device for calendering and manufacturing Fresnel condensing lens - Google Patents
Method and device for calendering and manufacturing Fresnel condensing lens Download PDFInfo
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- CN102303946A CN102303946A CN201110225693A CN201110225693A CN102303946A CN 102303946 A CN102303946 A CN 102303946A CN 201110225693 A CN201110225693 A CN 201110225693A CN 201110225693 A CN201110225693 A CN 201110225693A CN 102303946 A CN102303946 A CN 102303946A
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- fresnel
- condensing lens
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Abstract
The invention discloses a method and a device for calendering and manufacturing a Fresnel condensing lens, relating to the technical field of the production method and equipment of the Fresnel condensing lens. Aiming at the defect of complicated integral working procedure caused by shaping the Fresnel structure on a glass substrate during the existing Fresnel condensing lens manufacture, the method comprises the following steps: a. melting glass base stock; b. calendering and shaping the melted glass base stock into plate glass; c. calendering and shaping the plate glass into the Fresnel condensing lens by a Fresnel model calendering roller; and d. annealing and cooling. The device comprises a glass calender, wherein the glass calender is provided with an upper calendering roller and a lower calendering roller driven by a driving device; the outlets of the upper calendering roller and the lower calendering roller are provided with a first calendering roller and a second calendering roller, both of which are matched and connected in parallel; and the first calendering roller or the second calendering roller is fixedly provided with Fresnel patterns. The method and the device are especially suitable for manufacturing the Fresnel condensing lens.
Description
Technical field
The present invention relates to the working method and the equipment technical field of Fresnel condensing lens, relate in particular to a kind of method and device thereof that utilizes rolling process to make the Fresnel condensing lens.
Background technology
The Fresnel Lenses type of focusing is mainly adopted by the optically focused module of transmission-type light gathering photovoltaic power generating system.The Fresnel condensing lens be in the lens surface imprinting one circle circle ascending, outside concentric(al) circles from shallow to deep, section seems equidistant groove (referring to Fig. 1).Reach effect through these grooves, have stronger light penetration, energy centralization rate and higher light concentrating times the light belt logical (reflection or refraction) of specifying spectral range.The method of manufacture of Fresnel condensing lens is in the prior art, with the die cavity of liquid-state silicon gel by hopper pressurization injection mould, with pressurization after the perhaps compression moulding of heating after the silica gel compression moulding, the after fixing moulding of heating.Adopt this method to make in the process of Fresnel condensing lens, be difficult to avoid sneak into bubble in the glue, make to occur cavitation in the product, can not guarantee consistency of product, and its production efficiency is low, the temperature of production environment and the requirement of pressure are higher again.Therefore, this method of manufacture can not adapt to the batch process of Fresnel condensing lens.The device that this method of manufacture is used is the particular manufacturing craft with Fresnel die cavity, need in mould, inject glue successively, need carry out the demoulding after the formed product, operating process time and effort consuming and easy damaged goods.
Also has a kind of method of making the Fresnel condensing lens in the prior art; Chinese patent 02101577.5 " method of manufacture of Fresnel Lenses " discloses a kind of method of manufacture of Fresnel Lenses, comprises the following step: a light binding is coated on the Phenanthrine mould with glue mode under the part; With the roll extrusion mode one acryl substrate is covered on the Phenanthrine mould that is coated with light binding; Solidify light binding with irradiate light acryl substrate and Phenanthrine mould; And light binding is separated with Phenanthrine mould, form Fresnel Lenses according to this.This is a kind of method of coming the moulding Fresnel Lenses through light binding that is employed on the acryl substrate, and toughened glass or other blank glass method as the substrate production Fresnel Lenses that adopts is also arranged at present.But this method is produced Fresnel Lenses and is existed and come off easily between complex procedures, base plate glass and the Fresnel structure or produce drawback such as bubble, thereby influences the qualification rate of product.
At present, rolling process and two kinds of methods of float glass process are adopted in the production of glass board material usually.Rolling process is that the rolling metal roller with one or a pair of water-cooled becomes glass ribbon with glass metal roll-in, extension, and its former is fairly simple with operation, is fit to produce the product of different thickness or band grain pattern, and production efficiency is high, good product consistency.And do not see have the document record to utilize the glass rolling process to make the method and the corresponding calender device of Fresnel condensing lens in the prior art.
Summary of the invention
Make the problem of whole complex procedures to moulding Fresnel structure on the manufacturing employing glass substrate of existing Fresnel condensing lens; The purpose of this invention is to provide a kind of method and device thereof of making the Fresnel condensing lens that roll; Because glass substrate itself just needs calendering when moulding; This patent cleverly with the Fresnel pattern setting on stack; Thereby when glass ware forming, just can form Fresnel structure; Do not need again finished glass to be carried out the extra procedure operation; Practice thrift operation, simple and ingenious.
The technical solution adopted for the present invention to solve the technical problems is: rolling process is made the method for Fresnel condensing lens, and step is following:
A, fusion: with the fusion of glass base-material;
B, once shaped: is sheet glass with fused glass base-material through the glass pressing machine calendering formation;
C, post forming: with said sheet glass is the Fresnel condensing lens through Fresnel model stack calendering formation again;
D, annealing are cooled off: said Fresnel condensing lens is annealed to cool off makes Fresnel condensing lens finished product.
Further, it also comprises step e: said Fresnel condensing lens finished product is carried out the Fresnel condensing lens finished product that quench treatment makes tempering.
Further, said Fresnel model stack comprises first stack and second stack that cooperates with it, is installed with the Fresnel pattern on said first stack or second stack.
Further, said Fresnel pattern is meant the ascending concentric(al) circles lines that concave-convex surface is evenly distributed.
In addition; The present invention also provides a kind of device of making the Fresnel condensing lens that rolls; Comprise a glass pressing machine; Said glass pressing machine is provided with last stack and the bottom calender roll that drives through drive unit; Second stack that the exit of stack and bottom calender roll is arranged with first stack in parallel and cooperates with it on said is installed with the Fresnel pattern on said first stack or second stack.
Further, said Fresnel pattern is meant the ascending concentric(al) circles lines that concave-convex surface is evenly distributed.
Preferably, the degree of depth of said concentric(al) circles lines is 3mm～5mm.
Preferably, the gap between said first stack and said second stack is 6mm～9mm.
The effect of this patent is: the method for Fresnel condensing lens is made in calendering of the present invention; Utilize the special-purpose stack that is provided with the Fresnel pattern; The sheet glass to moulding rolls once more behind the glass calendering formation and before the still unannealed cooling, thereby the Fresnel pattern on the Fresnel model stack is pressed on the sheet glass.Its beneficial effect is:
One, present method has just increased the calendering formation step of one Fresnel pattern in the existing glass calendering technology; Promptly on the sheet glass of calendering formation, continue calendering Fresnel pattern; Because the unannealed cooling of this fashion of sheet glass; Therefore soft; Be easy to moulding, can make the Fresnel condensing lens after annealed again cooling or the quenching after the calendering of Fresnel pattern; Because producing the Fresnel condensing lens in the prior art all is on finished product sheet glass, to be shaped to Fresnel structure through light binding again; And the maximum intention of this patent just is in the moulding process of sheet glass, just to have added the moulding process of Fresnel structure; The moulding of sheet glass and the moulding of Fresnel structure are once realized; Final finished product is the Fresnel condensing lens directly just, thereby has practiced thrift operation greatly.
Two, say as first institute, when practicing thrift operation, also do not need to carry out again the moulding of Fresnel structure, reduced production cost and also improved consistency of product simultaneously;
Three, products production efficient is high, for production in enormous quantities provides strong volume production support;
Four, the Fresnel condensing lens is continuously shaped in glass pressing machine, the problems such as glass became uneven that can avoid the glass secondary processing to cause.
In addition, the calender device of Fresnel condensing lens of the present invention, first stack or second stack are provided with uniform concentric(al) circles lines, and formed product is fast like this, the demoulding is easy.And; In the existing glass rolling equipment, install one group additional and be provided with the transformation that Fresnel model stack can be accomplished equipment; Improvement cost is low; Plant factor is high; If need not produce the Fresnel condensing lens; Only this need be organized Fresnel model stack and quit work, glass pressing machine can also be produced sheet glass normally, thereby avoids causing waste.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further;
Fig. 1 is the longitudinal sectional drawing of Fresnel condensing lens;
Fig. 2 is the partial schematic diagram of the stack of this bright device;
Fig. 3 is the structural representation sketch of glass pressing machine;
Label declaration among the figure:
1-stack 2-concentric(al) circles lines
3-roller bearing 4-sheet glass 5-Fresnel condensing lens
Embodiment
As shown in Figure 3, the method for Fresnel condensing lens is made in a kind of glass calendering of the present invention, and step is following:
A, fusion: with the fusion of glass base-material; The glass base-material mainly is some rhombspars, Wingdale, feldspar etc.
B, once shaped: is sheet glass 4 with fused glass base-material through the glass pressing machine calendering formation;
C, post forming: with sheet glass 4 is Fresnel condensing lens 5 through Fresnel model stack calendering formation again;
D, annealing are cooled off: Fresnel condensing lens 5 is annealed to cool off makes Fresnel condensing lens finished product.
E: Fresnel condensing lens finished product is carried out the Fresnel condensing lens finished product that quench treatment makes tempering.
Fresnel model stack comprises first stack and second stack that cooperates with it, as shown in Figure 2, is installed with the Fresnel pattern on the stack 1, and the Fresnel pattern is meant the ascending concentric(al) circles lines 2 that concave-convex surface is evenly distributed.The degree of depth of concentric(al) circles lines is 3mm～5mm.
Like Fig. 3; The device of Fresnel condensing lens is made in glass calendering of the present invention; Comprise a glass pressing machine; Glass pressing machine is provided with last stack and the bottom calender roll that drives through drive unit; Second stack that is arranged with first stack in the exit of last stack and bottom calender roll in parallel and cooperates with it is installed with the Fresnel pattern on first stack or second stack.Gap between first stack and second stack is 6mm～9mm, also can adjust according to practical situation, to produce the Fresnel condensing lens of different thickness specification.Shown in Fig. 3; Glass at first is transported between stack and the bottom calender roll through roller bearing 3; Calendering aftershaping through last bottom calender roll is a sheet glass; Second stack that sheet glass passes through first stack and cooperates with it again; Owing to be installed with the Fresnel pattern on first stack or second stack; Therefore Fresnel structure will be pressed on the one side of the sheet glass after the calendering, the Fresnel condensing lens of tempering can be obtained after annealed again cooling and the quenching.
First stack and second stack are hollow structure, and the employing thermal conductivity is big, the high steel that are difficult for oxidation of intensity are processed.In first stack and second stack and the carrying roller water cooling system is arranged.Make water coolant equably through first stack and second stack, to improve cooling performance.
Those skilled in the art will recognize that; Above-mentioned embodiment is exemplary; Be in order to make those skilled in the art can better understand this patent content; Should not be construed as is the restriction to this patent protection domain; Change or modify so long as disclose spiritual any being equal to of being done, all fall into this patent protection domain according to this patent.
Claims (8)
1. one kind is rolled the method for making the Fresnel condensing lens, and its step is following:
A, fusion: with the fusion of glass base-material;
B, once shaped: is sheet glass with fused glass base-material through the glass pressing machine calendering formation;
C, post forming: with said sheet glass is the Fresnel condensing lens through Fresnel model stack calendering formation again;
D, annealing are cooled off: said Fresnel condensing lens is annealed to cool off makes Fresnel condensing lens finished product.
2. according to the method for the said calendering manufacturing of claim 1 Fresnel condensing lens, it is characterized in that: also comprise step e: said Fresnel condensing lens finished product is carried out the Fresnel condensing lens finished product that quench treatment makes tempering.
3. make the method for Fresnel condensing lens according to the said calendering of claim 1; It is characterized in that: said Fresnel model stack comprises first stack and second stack that cooperates with it, is installed with the Fresnel pattern on said first stack or second stack.
4. the method for Fresnel condensing lens is made in calendering according to claim 3, and it is characterized in that: said Fresnel pattern is meant the ascending concentric(al) circles lines that concave-convex surface is evenly distributed.
5. one kind is rolled the device of making the Fresnel condensing lens; Comprise a glass pressing machine; Said glass pressing machine is provided with last stack and the bottom calender roll that drives through drive unit; It is characterized in that: second stack that the exit of stack and bottom calender roll is arranged with first stack in parallel and cooperates with it on said is installed with the Fresnel pattern on said first stack or second stack.
6. the device of Fresnel condensing lens is made in calendering according to claim 5, and it is characterized in that: said Fresnel pattern is meant the ascending concentric(al) circles lines that concave-convex surface is evenly distributed.
7. the device of Fresnel condensing lens is made in calendering according to claim 6, and it is characterized in that: the degree of depth of said concentric(al) circles lines is 3mm～5mm.
8. the device of Fresnel condensing lens is made in calendering according to claim 6, and it is characterized in that: the gap between said first stack and said second stack is 6mm～9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110225693A CN102303946A (en) | 2011-08-08 | 2011-08-08 | Method and device for calendering and manufacturing Fresnel condensing lens |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110225693A CN102303946A (en) | 2011-08-08 | 2011-08-08 | Method and device for calendering and manufacturing Fresnel condensing lens |
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| CN102303946A true CN102303946A (en) | 2012-01-04 |
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| CN201110225693A Pending CN102303946A (en) | 2011-08-08 | 2011-08-08 | Method and device for calendering and manufacturing Fresnel condensing lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809770A (en) * | 2012-08-07 | 2012-12-05 | 南京索尔玻璃科技有限公司 | Preparation method of linear Fresnel lens and Fresnel lens prepared by preparation method |
| US9976708B2 (en) | 2014-01-20 | 2018-05-22 | Osram Opto Semiconductors Gmbh | Lighting means having a specifiable emission characteristic and production method for an optical element |
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| JPH04367532A (en) * | 1991-06-12 | 1992-12-18 | Nippon Sheet Glass Co Ltd | Roll-out forming device of plate glass |
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| CN101374777A (en) * | 2006-01-16 | 2009-02-25 | 尤罗科拉公司 | Glass-ceramic plates, their manufacturing process, and cooktops equipped with these plates |
| CN101840011A (en) * | 2010-04-15 | 2010-09-22 | 上海聚恒太阳能有限公司 | Manufacture method for nanometer self-cleaning spotlight solar energy Fresnel lens |
| CN102096125A (en) * | 2011-01-13 | 2011-06-15 | 北京工业大学 | Manufacturing method and device of light-focusing Fresnel lens |
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2011
- 2011-08-08 CN CN201110225693A patent/CN102303946A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE4110248A1 (en) * | 1991-03-28 | 1992-10-01 | Berstorff Gmbh Masch Hermann | Continuous mfr. of acrylic fresnel lenses - with embossing section with high pressure heating and low pressure cooling zones |
| CN1065924A (en) * | 1991-04-13 | 1992-11-04 | 邵阳市玻璃厂 | Solarv energy low-power condensing lens and production method thereof |
| JPH04367532A (en) * | 1991-06-12 | 1992-12-18 | Nippon Sheet Glass Co Ltd | Roll-out forming device of plate glass |
| CN1069954A (en) * | 1991-08-28 | 1993-03-17 | 周惠忠 | Visionary decorative glass and manufacture method thereof |
| CN1847175A (en) * | 2005-04-17 | 2006-10-18 | 谢骏峰 | Painted glass tile producing process and apparatus |
| CN101360689A (en) * | 2005-11-23 | 2009-02-04 | 法国圣戈班玻璃厂 | Method for surface structuring of a glass product, glass product with structured surface and uses |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809770A (en) * | 2012-08-07 | 2012-12-05 | 南京索尔玻璃科技有限公司 | Preparation method of linear Fresnel lens and Fresnel lens prepared by preparation method |
| US9976708B2 (en) | 2014-01-20 | 2018-05-22 | Osram Opto Semiconductors Gmbh | Lighting means having a specifiable emission characteristic and production method for an optical element |
| EP3097346B1 (en) * | 2014-01-20 | 2018-09-19 | OSRAM Opto Semiconductors GmbH | Lighting means with predetermined radiation characteristics and production method for an optical element |
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Application publication date: 20120104 |