CN102179348A - Glue spin coating device for blue-ray disc - Google Patents
Glue spin coating device for blue-ray disc Download PDFInfo
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- CN102179348A CN102179348A CN 201110033422 CN201110033422A CN102179348A CN 102179348 A CN102179348 A CN 102179348A CN 201110033422 CN201110033422 CN 201110033422 CN 201110033422 A CN201110033422 A CN 201110033422A CN 102179348 A CN102179348 A CN 102179348A
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- glue
- ray disc
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Abstract
The invention provides a glue spin coating device for a blue-ray disc, and the device provided by the invention comprises a horizontally arranged substrate, a central shaft vertical to the substrate and a glue-throwing bowl fixed on the upper surface of the substrate, and is characterized in that a guide pillar is arranged in the glue-throwing bowl along the central shaft; a glue-throwing tray which rotates around the central shaft is horizontally arranged at fixed height of the guide pillar; and a water heating plate is concentrically arranged below the glue-throwing tray. By using the technical scheme of the invention, the controllability of the glue spin coating device for the blue-ray disc is enhanced, the spin coating process of the coating layer of the blue-ray disc is improved, the problems of thickness uniformity and evenness of the coating layer of the blue-ray disc are solved, and the quality of the blue-ray disc is obviously increased.
Description
Technical field
The present invention relates to a kind of spraying glue equipment of Blu-ray Disc, be specifically related to a kind of glue spin coating device of Blu-ray Disc.
Background technology
Current, the development of digital high-definition video technique has further promoted the brand-new reform of disk format.Wherein, Blu-ray Disc is the peak of disk format in the far-field recording, and it adopts wavelength is the bluish violet color laser of 405nm and 0.85 numerical aperture, has greatly improved the memory capacity of Blu-ray Disc.Diameter is that the memory capacity of Blu-ray Disc of the single-surface single-layer of 120mm can reach 25GB, is about 5 times of DVDR 5.Just because of the high power capacity of Blu-ray Disc, the technology tool of its production technology and DVD in the past is very different, and has particularly abandoned traditional tectal technology of 0.6mm dish base+0.6mm, and has adopted up-to-date 1.1mm dish base+0.1mm cover layer production technology.
Because the diameter of blue laser hot spot is about 580nm, therefore the glue cover layer for 0.1mm has proposed than higher requirement, particularly tectal uniformity of glue and flatness is had higher requirement.
Usually spraying glue cover layer generally adopts the technology of spin coating glue, and the device structure that is adopted is simple, with low cost, is used widely in the art.But existing Blu-ray Disc glue spin coating device can not be controlled tectal uniformity of glue and flatness well, thereby make and when the disc imprinting, produce spherical aberration (spherical aberration) and intelligent image poor (coma), the forming quality of pits is very poor when causing imprinting, and the signal quality during more feasible reading is very poor.
Summary of the invention
The glue spin coating device that the purpose of this invention is to provide a kind of Blu-ray Disc overcomes in the prior art problems such as the inhomogeneous and out-of-flatness of glue cover layer.
In order to solve the problems of the technologies described above, the present invention adopts following scheme:
A kind of glue spin coating device of Blu-ray Disc comprises: horizontally disposed substrate; With the vertical substantially central shaft of described substrate; Be fixed in the whirl coating bowl of the upper surface of described substrate; It is characterized in that, in the inside of described whirl coating bowl, be provided with guide pillar along described central shaft, level is provided with around the whirl coating pallet of described central shaft rotation on both take the altitudes of described guide pillar, and the below of described whirl coating pallet is provided with the hydro-thermal dish with one heart.
Distance between described hydro-thermal dish and the whirl coating pallet is 6-10mm.
Distance between described hydro-thermal dish and the whirl coating pallet is 8mm.
Described hydro-thermal dish is the concentric discs that is surrounded by pipeline.
Described hydro-thermal dish comprises the water inlet that is positioned at outmost turns and is positioned at the delivery port of inner ring that the water temperature of described water inlet is higher than the water temperature of described delivery port.
Described water inlet is apart from the central shaft of hydro-thermal dish 59mm radially, and described delivery port is apart from the central shaft of hydro-thermal dish 22mm radially.
The muscle that has protrusion on the circular surface of described hydro-thermal dish.
The bottom of described hydro-thermal dish is provided with a shock ring.
Described device also comprises and is used for vacuum plant that described whirl coating bowl is vacuumized.
By technique scheme of the present invention, make the controllability of glue spin coating device of described Blu-ray Disc strengthen, improve the tectal spin coating proceeding of Blu-ray Disc, solved the problem of Blu-ray Disc overburden cover uniformity and flatness effectively, significantly improved the quality of Blu-ray Disc.
Description of drawings
Fig. 1 is the viewgraph of cross-section of Blu-ray Disc glue spin coating device according to a preferred embodiment of the present invention.
Fig. 2 is the partial enlarged drawing of the whirl coating bowl of Blu-ray Disc glue spin coating device according to a preferred embodiment of the present invention.
Fig. 3 is the local amplification plan view of the hydro-thermal dish of Blu-ray Disc glue spin coating device according to a preferred embodiment of the present invention.
Fig. 4 is the pipeline configuration partial enlarged drawing of region D of the hydro-thermal dish of Fig. 3.
Fig. 5 is the cross section enlarged drawing of muscle of the hydro-thermal dish of Fig. 4.
The specific embodiment
Below in conjunction with accompanying drawing, provide preferred embodiment of the present invention, and described in detail, enable to understand better function, the characteristics of Blu-ray Disc glue spin coating device of the present invention.
As depicted in figs. 1 and 2, Blu-ray Disc glue spin coating device according to a preferred embodiment of the present invention has vertical central axis 9, and described device comprises horizontally disposed substrate 1, is fixed in the whirl coating bowl 7 of the upper surface of described substrate 1; Inside at described whirl coating bowl 7, be provided with guide pillar 17 along described central shaft 9, level is provided with whirl coating pallet 13 on both take the altitudes of described guide pillar 17, described whirl coating pallet 13 can be around described central shaft 9 rotations under the effect of servomotor 3, and the below of described whirl coating pallet 13 is provided with hydro-thermal dish 12 with one heart.
As shown in Figure 3 and Figure 4, described hydro-thermal dish 12 is the concentric discs that surrounded by pipeline, comprise the water inlet A that is positioned at outmost turns and be positioned at the water outlet B of inner ring, described water inlet A and water outlet B are connected to hydro-thermal control system 6 (as shown in Figure 1) by an inlet channel and an outlet conduit respectively.By the ducted water temperature of described hydro-thermal control system 6 control hydro-thermal dishes 12, wherein, the water temperature at the water inlet A place of described hydro-thermal dish 12 is higher than the water temperature at water outlet B place.
As shown in Figure 4 and Figure 5, on the circular surface of hydro-thermal dish 12, every 11.25 ° of structures that have a muscle 18 of fillet, the protrusion (as shown in Figure 5) that described muscle 18 forms a little more than the upper surface of hydro-thermal dish 12.By the muscle 18 of described projection, increased the surface area of hydro-thermal dish greatly, thereby strengthened the heat exchange between hydro-thermal dish and the whirl coating pallet 13.
Because whirl coating pallet 13 rotates at a high speed around central shaft 9 in the whirl coating process, so the heat conduction pattern between hydro-thermal dish 12 and the whirl coating pallet 13 is preferably contactless.Contactless heat by hydro-thermal dish 12 conducts the glue that heats in the whirl coating pallet 13.In view of this, the distance between whirl coating pallet 13 and the hydro-thermal dish 12 is the smaller the better; But consider that surface, hydro-thermal coil pipe road has the such projection (as shown in Figure 5) of muscle 18, the distance between described hydro-thermal dish 12 and the whirl coating pallet 13 is preferably 6-10mm.Preferably, the distance between described hydro-thermal dish and the whirl coating pallet is 8mm.
As depicted in figs. 1 and 2, Blu-ray Disc glue spin coating device according to a preferred embodiment of the present invention also comprises vacuum plant, described vacuum plant comprises vavuum pump 5 and vacuum tube 10, and vavuum pump 5 is connected with whirl coating bowl 7 by vacuum tube 10, is used for whirl coating bowl 7 is vacuumized.
As depicted in figs. 1 and 2, Blu-ray Disc glue spin coating device according to a preferred embodiment of the present invention also comprises the glue feed system, and described glue feed system comprises glue supply bucket 4, following glue arm 8, following needle head 16, glue recovery channel 11, glue recycling bin 2.This glue supply bucket 4 is delivered to down needle head 16 by following glue arm 8 with glue.Described down needle head 16 is positioned at the top of the inner ring of optical disk 15.Glue unnecessary behind the CD whirl coating flows back into glue recycling bin 2 through glue recovery channel 11, and can utilize once more.
As shown in Figure 2, the bottom of hydro-thermal dish 12 also can be provided with a shock ring 14, and this shock ring 14 plays support and damping, and the material of this shock ring should be appreciated that for being preferably acrylonitrile-butadiene rubber (NBR), also can select other any suitable materials for use.
The invention provides a kind of method that adopts Blu-ray Disc glue spin coating device to carry out the glue spin coating, optical disk 15 is put on the whirl coating pallet 13 of whirl coating bowl 7, and position by guide pillar 17; Open hydro-thermal control system 6, set the inflow temperature of hydro-thermal dish 12; Open vacuum plant simultaneously, produce from the marginal flow of optical disk 15 air-flow to the bottom; Start the glue feed system then, make glue arrive at the inner ring of optical disk 15 from following needle head 16; Opening servomotor 3 makes whirl coating pallet 13 carry out spin coating around central shaft 9 rotations; The surplus glue that whirl coating operation back produces flows in the glue recycling bin by glue recovery tube 11 to be reused.
The related parameter of above-mentioned glue spin coating method can be set according to those skilled in the art's experience.For example, after following glue parameter and whirl coating parameter rationally are set, it mainly is the rotary speed of motor when playing glue, time, relation between the acceleration three, glue passes through needle head 16 glue under the inner ring of pending optical disk 15 down, the following glue time will be preferably 4-6 second, begin to carry out whirl coating afterwards, in the process of whirl coating, drive lower disc in the whirl coating rotating shaft begins rotation, add the effect of overdraught, when glue at disc during along Radial Flow, because whirl coating pallet 13 is done rotation at a high speed with respect to hydro-thermal dish 12, therefore this makes that the flow direction of hydro-thermal Pan Shui is opposite with the direction of rotation of disc, has produced the very strong convection current effect that liquidates, thereby relative more and more higher of the temperature of disc outmost turns, what the viscosity of its glue was relative will reduce, this makes the glue at disc edge can not produce very strong contraction because of colder temperature, and then makes and improve disc radius 56mm later uniformity and flatness especially by glue thickness.Whole whirl coating process is preferably 7-11 second.
Wherein, outer ring inlet channel from the hydro-thermal dish after the higher water of temperature comes out from hydro-thermal control system 6 enters (water inlet A), and the lower water of temperature flows out (water outlet B) from the inner ring outlet conduit of hydro-thermal dish, the water of delivery port flows back in the hydro-thermal control system 6 again, and is recycling through realizing after the automatic control heat treated.Wherein, the position of water inlet A is preferably apart from the central shaft of hydro-thermal dish 59mm radially, and the position of water outlet B is preferably apart from the central shaft of hydro-thermal dish 22mm radially.Water inlet is identical with the position that the setting and the glue of delivery port position cover on the disc.
Wherein the temperature at the edge of whirl coating pallet 13 is the highest, and it is main according to the glue temperature that the temperature of recirculated water is provided with, and is set at higher 1 ℃-2 ℃ than glue temperature usually.The requirement of the heat of disc Internal and external cycle supply when such temperature setting can be satisfied whirl coating.
Therefore, setting by hydro-thermal dish 12, it is more and more lower to have overcome in the prior art temperature of the outer ring of whirl coating pallet 13, and viscosity is increasing, thereby causes thicker relatively and edge glue makes the inhomogeneous or irregular problem of overburden cover owing to strong contraction.
Above-described, be preferred embodiment of the present invention only, be not in order to limiting scope of the present invention, the above embodiment of the present invention can also be made various variations.Be that every simple, equivalence of doing according to the claims and the description of the present patent application changes and modification, all fall into the claim protection domain of patent of the present invention.The present invention not detailed description be the routine techniques content.
Claims (9)
1. the glue spin coating device of a Blu-ray Disc comprises:
Horizontally disposed substrate;
With the vertical substantially central shaft of described substrate;
Be fixed in the whirl coating bowl of the upper surface of described substrate;
It is characterized in that, in the inside of described whirl coating bowl, be provided with guide pillar along described central shaft, level is provided with around the whirl coating pallet of described central shaft rotation on both take the altitudes of described guide pillar, and the below of described whirl coating pallet is provided with the hydro-thermal dish with one heart.
2. the glue spin coating device of Blu-ray Disc as claimed in claim 1 is characterized in that, the distance between described hydro-thermal dish and the whirl coating pallet is 6-10mm.
3. the glue spin coating device of Blu-ray Disc as claimed in claim 1 is characterized in that, the distance between described hydro-thermal dish and the whirl coating pallet is 8mm.
4. the glue spin coating device of Blu-ray Disc as claimed in claim 1 is characterized in that, described hydro-thermal dish is the concentric discs that is surrounded by pipeline.
5. the glue spin coating device of Blu-ray Disc as claimed in claim 1 is characterized in that, described hydro-thermal dish comprises the water inlet that is positioned at outmost turns and be positioned at the delivery port of inner ring that the water temperature of described water inlet is higher than the water temperature of described delivery port.
6. the glue spin coating device of Blu-ray Disc as claimed in claim 5 is characterized in that, described water inlet is apart from the central shaft of hydro-thermal dish 59mm radially, and described delivery port is apart from the central shaft of hydro-thermal dish 22mm radially.
7. the glue spin coating device of Blu-ray Disc as claimed in claim 1 is characterized in that, has the muscle of protrusion on the circular surface of described hydro-thermal dish.
8. the glue spin coating device of Blu-ray Disc as claimed in claim 1 is characterized in that, the bottom of described hydro-thermal dish is provided with a shock ring.
9. the glue spin coating device of Blu-ray Disc as claimed in claim 1 is characterized in that, described device also comprises and is used for vacuum plant that described whirl coating bowl is vacuumized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110033422 CN102179348A (en) | 2011-01-30 | 2011-01-30 | Glue spin coating device for blue-ray disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110033422 CN102179348A (en) | 2011-01-30 | 2011-01-30 | Glue spin coating device for blue-ray disc |
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| Publication Number | Publication Date |
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| CN102179348A true CN102179348A (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110033422 Pending CN102179348A (en) | 2011-01-30 | 2011-01-30 | Glue spin coating device for blue-ray disc |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906483A (en) * | 2018-07-23 | 2018-11-30 | 上海微世半导体有限公司 | Full-automatic gumming machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03192547A (en) * | 1989-12-21 | 1991-08-22 | Seiko Epson Corp | Optical disk and its production |
| JPH05185014A (en) * | 1992-01-08 | 1993-07-27 | Dainippon Ink & Chem Inc | Spin coater |
| US5580607A (en) * | 1991-07-26 | 1996-12-03 | Tokyo Electron Limited | Coating apparatus and method |
| US6107608A (en) * | 1997-03-24 | 2000-08-22 | Micron Technology, Inc. | Temperature controlled spin chuck |
| JP2001084648A (en) * | 1999-09-10 | 2001-03-30 | Ricoh Co Ltd | Disk sticking method for stuck type optical disk and device |
| CN101359491A (en) * | 2008-09-17 | 2009-02-04 | 河南凯瑞数码有限公司 | Method and device for resolving nonuniformity of thickness of retaining layer in production of blue ray disc |
| CN101657854A (en) * | 2007-04-11 | 2010-02-24 | 株式会社理光 | Spin coater, temperature controlling method of the same, optical disc production apparatus, and optical disc production method |
-
2011
- 2011-01-30 CN CN 201110033422 patent/CN102179348A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03192547A (en) * | 1989-12-21 | 1991-08-22 | Seiko Epson Corp | Optical disk and its production |
| US5580607A (en) * | 1991-07-26 | 1996-12-03 | Tokyo Electron Limited | Coating apparatus and method |
| JPH05185014A (en) * | 1992-01-08 | 1993-07-27 | Dainippon Ink & Chem Inc | Spin coater |
| US6107608A (en) * | 1997-03-24 | 2000-08-22 | Micron Technology, Inc. | Temperature controlled spin chuck |
| JP2001084648A (en) * | 1999-09-10 | 2001-03-30 | Ricoh Co Ltd | Disk sticking method for stuck type optical disk and device |
| CN101657854A (en) * | 2007-04-11 | 2010-02-24 | 株式会社理光 | Spin coater, temperature controlling method of the same, optical disc production apparatus, and optical disc production method |
| CN101359491A (en) * | 2008-09-17 | 2009-02-04 | 河南凯瑞数码有限公司 | Method and device for resolving nonuniformity of thickness of retaining layer in production of blue ray disc |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906483A (en) * | 2018-07-23 | 2018-11-30 | 上海微世半导体有限公司 | Full-automatic gumming machine |
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Application publication date: 20110914 |