CN1672904A - Die for forming optical disk substrate - Google Patents
Die for forming optical disk substrate Download PDFInfo
- Publication number
- CN1672904A CN1672904A CNA2005100001700A CN200510000170A CN1672904A CN 1672904 A CN1672904 A CN 1672904A CN A2005100001700 A CNA2005100001700 A CN A2005100001700A CN 200510000170 A CN200510000170 A CN 200510000170A CN 1672904 A CN1672904 A CN 1672904A
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- China
- Prior art keywords
- base board
- optic disc
- disc base
- mould
- emulation
- Prior art date
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/263—Preparing and using a stamper, e.g. pressing or injection molding substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/58—Applying the releasing agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
- B29C2033/422—Moulding surfaces provided with a shape to promote flow of material in the mould cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
- B29C33/424—Moulding surfaces provided with means for marking or patterning
- B29C2033/426—Stampers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
The present invention aims to solve the problems of cost increase and complicated procedures for replacing a shadow press by using a mold provided with the shadow press when a bonding surface between the optical disk substrates is formed and copied on an artificial optical disk substrate. Further, the problem of poor mold release of the bonded surface of the optical disk substrate is not caused, and the problem of deterioration of the optical disk appearance caused by the glass-like matte bonded surface is also prevented. In order to solve the problem, a bonding surface A1 of a dummy optical disk substrate A forming a mold 11 for molding an optical disk substrate is coated with at least one of DLC, a nitrogen compound, a carbon compound and tungsten carbide on a cavity forming surface 24a of a mirror surface plate 24 not provided with a molding press.
Description
Technical field
The invention relates to formed film chamber (cavity) between fixed mould and the flexible mould and be shaped by pothole (Pit) institute copy substrate, and the mould for optical disc substrate forming of the emulation optic disc base board that duplicates of the pothole of fitting.
Background technology
The CD of representative among the DVD-5, be with formed film chamber (cavity) between each fixed mould and the flexible mould, each optic disc base board of being duplicated by pothole (tip) of being shaped (below be referred to as " copy substrate "), and the emulation optic disc base board that duplicates of pothole (below be referred to as " emulation optic disc base board "), the manufacturing afterwards of again aforementioned copy optic disc base board and aforementioned emulation optic disc base board being fitted forms.And, then adopt the mould for optical disc substrate forming of being put down in writing on the known patent documentation 1 to carry out injection molding about the shaping aspect of the emulation optic disc base board of aforementioned CD.The basic structure of the emulation mould for optical disc substrate forming of being put down in writing on the patent documentation 1 almost is same as the structure of copy substrate forming with mould.In a word; the molding die of copy substrate; be on either party's mirror board of fixed mould and flexible mould; set the molding press that duplicates pothole (below be referred to as " duplicate and use molding press "); the emulation mould for optical disc substrate forming then replaces aforementioned molding press, and sets the molding press that no pothole duplicates (below be referred to as " blanking (blank) molding press ").When therefore being shaped the emulation optic disc base board, must on molding die, install expensive blanking molding press additional.In addition, more changing device of molding press supporting seat and molding press also need be set on the molding die.Moreover aforementioned blanking molding press is to belong to running stores, therefore during predetermined shaping number of times, just needs to carry out the replacing operation whenever reaching.
Relatively,, then do not set the blanking molding press on the mirror board surface of formation copy baseplate-laminating face, and the mirror board surface is considered as film chamber formation face with the emulation optic disc base board.But by the mirror board surface that stainless steel constituted the enforcement Precision Machining is arranged then, this surface is considered as the film chamber and forms face, reshape emulation optic disc base board binding face after, the bad problem of the emulation optic disc base board demoulding just can take place.In order to solve the bad problem of the demoulding, thereby adopt by discharging processing machine etc., the film chamber that the mirror board surface is made asperities forms face, to eliminate the bad problem of the demoulding.But this moment, the mirror board any surface finish spend thick after, the emulation optic disc base board can take place, and to become cloudy surface glassy and reduce the problem of transparency.And with the copy baseplate-laminating after, even print on emulation optic disc base board surface, the color after the printing also can become the white casse shape, and diminishes the outward appearance of CD goods.Relation for the foregoing reasons, known emulation optic disc base board binding face in fact all is to be shaped by the blanking molding press.
Te Kaiping 9-212916 communique (application project 1, Fig. 7 and even Figure 10)
Summary of the invention
Because the problems referred to above; the purpose of mould for optical disc substrate forming of the present invention is to provide; during binding face on the emulation optic disc base board between the shaping copy substrate; then use the mould that the blanking molding press is set, the problem that raises the cost with solution, and change numerous and diverse formality problem of blanking molding press.And the purpose of mould for optical disc substrate forming more is to provide, and the bad problem of the emulation optic disc base board binding face demoulding does not take place, and it is glassy also not allow aforementioned binding face become cloudy surface, and diminishes the CD problem of appearance.
Technological means of the present invention is:
As described in claim 1 of the present invention; be a kind of with formed film chamber between fixed mould and the flexible mould; the optic disc base board that duplicated by pothole, and the mould for optical disc substrate forming of the emulation optic disc base board that duplicates of its pothole of fitting are shaped; it is characterized in that: on the aforementioned emulation optic disc base board binding face that forms the optic disc base board that is duplicated by aforementioned pothole is arranged; do not setting on the mirror board surface of molding press, having a kind of DLC of coating, nitrogen compound, carbon compound and tungsten carbide at least.
As described in claim 2 of the present invention; be a kind of with formed several film chambeies between fixed mould and the flexible mould; the optic disc base board that is shaped and duplicates simultaneously by pothole; and on the optic disc base board that this pothole duplicated; the fit mould for optical disc substrate forming of the emulation optic disc base board that its pothole duplicates; it is characterized in that: on the mirror board surface, film chamber of the optic disc base board formed thereby that pothole duplicated, set molding press; and form the film chamber of emulation optic disc base board formed thereby; the binding face of the optic disc base board that is duplicated with aforementioned pothole; do not setting on the mirror board surface of molding press, then having a kind of DLC of coating at least; nitrogen compound; carbon compound and tungsten carbide.
Effect of the present invention:
Mould for optical disc substrate forming of the present invention; be on the emulation optic disc base board; form the binding face of pothole copy substrate; and do not setting on the mirror board surface of molding press; at least be coated with a kind of DLC, nitrogen compound, carbon compound and tungsten carbide; do not use expensive blanking molding press, just formed the binding face of optic disc base board.And this moment, it is bad can not the demoulding to take place between aforementioned mirror board minute surface and the emulation optic disc base board binding face, and it is glassy also can not to allow aforementioned binding face become cloudy surface, and diminishes the problem generation of CD outward appearance.
Description of drawings
Fig. 1: the significant points profile of mould for optical disc substrate forming of the present invention is implemented in expression.
Near Fig. 2: the amplification profile cd centre's opening of expression applying optic disc base board of the present invention.
Fig. 3: be illustrated on the present invention's second example the significant points profile of mould for optical disc substrate forming.
The specific embodiment
Below based on Fig. 1, Fig. 2, describe the invention process form in detail.Fig. 1 represents to implement the significant points profile of mould for optical disc substrate forming of the present invention.Near Fig. 2 amplification profile cd centre's opening of optic disc base board of the present invention of representing to fit.
The mould for optical disc substrate forming 11 of example is fitted with pothole (tip) copy substrate (below be referred to as " copy substrate B "), the emulation optic disc base board that the pothole that is shaped duplicates (below be referred to as " emulation optic disc base board A ").As shown in Figure 1 and Figure 2, molding die 11 is made of fixed mould 12 and flexible mould 13, can form variable volume film chamber 14 between two moulds 12,13 behind the matched moulds.Being installed in the fixed mould 12 of not providing the emission forming machine fixed disk on graphic, is by fixed form 15, at the fixed mirror panel 18 that has the coolant flow channel that sees through fixing inner panel 17 and fitted on fixed form 15 anti-thermal insulation board 16 sides, fixed form 15, fixing inner panel 17 and be intercalated in the gate plug-in unit 19, sprue bush 20 of fixed mirror panel 18 central openings, be intercalated in the fixedly peripheral ring 21 that is fitted in fixed form 15 etc. constituted on fixedly inner panel 17 and fixed mirror panel 18 peripheral end faces.And; the flexible mould side surface of the fixed mirror panel 18 in this example; the molding press (be " blanking (blank) molding press " of calling in the following text) that pothole duplicates is not installed; the flexible mould side surface of fixed mirror panel 18; then together with the flexible mould side surface of other gate plug-in unit 19; each constitutes the membrane chamber and forms face 18a, 19a.
In addition, as Fig. 1, shown in Figure 2, being installed in the flexible mould 13 of the movable disk of not providing the emission forming machine on graphic, is by collapsible form 22, be bonding on the movable inner panel 23 of the fixed mould side of collapsible form 22, on the fixed mould side of collapsible form 22, see through the flexible mirror panel 24 that movable inner panel 23 has the coolant flow channel that is binded, be subjected to the periphery film chamber formation piece (block) 25 that flexible mirror panel 24 peripheral parts are supported, the cylindric interior all films chamber that is inserted into movable inner panel 23 and flexible mirror panel 24 central openings forms piece 26, all films chamber forms piece 26 endoporus and towards the injector 27 that axially is free to slide in being intercalated in, be intercalated in injector 27 endoporus and towards the public cutter 28 that axially is free to slide, be intercalated in public cutter 28 endoporus and towards axially being free to slide and in order to allow emulation optic disc base board A cater to the flexible mould side and be provided with the outstanding pin 29 that agrees with the 29a of portion in front, be intercalated in movable inner panel 23 and flexible mirror panel 24 peripheral end faces and fitted in collapsible form 22 movable peripheral ring 30 etc. constitute.
This example is that the film chamber that forms piece 26 fixed mould side surfaces in interior all films chamber forms on the face 26a peripheral part, forms circular protrusion 26b.This circular protrusion 26b can be formed at, on the position in response to all molding press supporting seat claw projections in the molding die (not providing graphic) of copy substrate B formed thereby.Moreover the pothole that the present invention sayed (tip) has then comprised, and is reproduced in to play the tailored version CD with the pothole of optic disc base board and be reproduced in the groove (groove) of once-type CD usefulness optic disc base board.In addition, aforementioned interior all films chamber forms between piece 26 and the flexible mirror panel 24 and then is provided with, and can spray the demoulding air flue 31 of air when the emulation optic disc base board A demoulding.In addition, also can form between piece 25 and the flexible mirror panel 24 sometimes, the demoulding air flue that can spray air when the demoulding is set in flexible mould 13 periphery film chambeies.And; the fixed mould side surface of the flexible mirror panel 24 of this example is not installed the blanking molding press; the fixed mould side surface of flexible mirror panel 24 then forms piece 26 fixed mould side surfaces together with all films chamber in aforementioned, and each constitutes the membrane chamber and forms face 24a, 26a.And flexible mirror panel 24 film chambeies form face 24a, then form the A1 face of emulation optic disc base board A binding face.
This example has coating Tin (titanium nitride) (Vicker-hardness Hv1000 and even Hv1400) on flexible mirror panel 24 film chambeies formation face 24a, form thickness 1 μ m and even 10 μ m.And the coating Tin of this flexible mirror panel 24 carries out finished machined with diamond cream etc. after forming coated film.About this coating Tin finished machined, the method except aforementioned also can adopt the physical surface treatment method, and the surface smoothness after the finished machined (10 average fineness) is 0.05 μ mRz and even 0.4 μ mRz.Moreover in comparison, coefficient of friction and surface smoothness are bigger for Tin and DLC (class diamond carbon film), therefore help guaranteeing above-mentioned surface smoothness.In addition, the film chamber of flexible mirror panel 24 forms the material that is coated with on the face 24a, also can be coated with titanium nitrogen compound, Sin, Si such as TiCN, TiCrN, TiALN except Tin
3N
4Deng other nitrogen compounds such as silicon-nitrogen compound, AlN, TaN, ZrN.In addition, also can be coated with carbon compounds such as SiC, TiC.In addition, also can be coated with DLC (class diamond carbon film).About above-mentioned coating aspect, thickness is about 1 μ m and even 10 μ m.In addition, can be 30 μ m and even 1mm also with metal-plated such as WCC (coating tungsten carbide), hard chromium, the coating of fluororesin (PTFE or PFA) thickness.Moreover aforementioned coating material also can be coated with several layers of diverse coating material.These coatings are then carried out evaporation, cathodic sputtering ring, metallising, plating coating etc. according to PVD, CVD, electricity slurry CVD method etc.And, carry out finished machined sometimes, surface smoothness is processed into about 0.05 μ mRz and even 0.4 μ mRz.Moreover this example only forms in flexible mirror panel 24 film chambeies and carries out aforementioned coating on the face 24a, carries out aforementioned coating on the face 18a but also can form in fixed mirror panel 18 film chambeies.Moreover interior all films chamber forms piece 26, gate plug-in unit 19 film chambeies form face 26a, 19a, also can carry out aforementioned coating.
Next, this example of explanation is used the emulation optic disc base board A shaping project, emulation optic disc base board A applying copy substrate B of molding die 11 to make the engineering of CD C.At first, for molding die 11 fixed moulds 12,13 of flexible moulds form the film chamber 14 of matched moulds, and never provide the ejecting device on graphic, about 350 ℃ molten resin that Merlon constituted is penetrated be filled in aforementioned films chamber 14.And aforementioned molten resin only cools off, solidifies and shrink in film chamber 14.This moment, this example was the film chamber formation face 24a by the flexible mirror panel 24 of coating Tin, and formed the binding face A1 of copy substrate B on emulation optic disc base board A.And, after finishing cooling, solidifying, drive the mould opening and closing device of not providing on graphic, allow flexible mould 13 die sinkings, shaping emulation optic disc base board A and do not provide cast gate on graphic is subjected to then that outstanding pin 29 agrees with the 29a of portion and flexible mould 13 supports.
At this moment, before and after flexible mould 13 die sinkings, come from the air of demoulding air flue 31, can spread all over emulation optic disc base board A binding face A1, form between the face 24a, and promotion is carried out the demoulding from emulation optic disc base board A flexible mould 13 with flexible mirror panel 24 film chambeies.At this moment, interior all films chamber forms on the piece 26 can form circular protrusion 26b, and supplies air in a large number towards the film chamber formation face 24a direction of flexible mirror panel 24.About this on the one hand, the contraction of emulation optic disc base board A when cooling, curing, be that all inwardly sides are shunk, therefore the mould of circular protrusion 26b open and close the direction face, with the interior emulation optic disc base board A in film chamber 14 between the gap appears hardly, and the air that surpasses half is then supplied towards the film chamber formation face 24a side of flexible mirror panel 24.Moreover this moment also can be from flexible mirror panel 24 outer circumferential sides, supply demoulding air.
And, emulation optic disc base board A is when the demoulding, flexible mirror panel 24 film chambeies on this example form face 24a, having coating to be become surface smoothness by finished machined is the Tin of 0.05 μ mRz and even 0.4 μ mRz, therefore become 0.02 μ mRz and even 0.03 μ mRz compared to finished machined, and by the known smooth demoulding emulation of the flexible mirror panel surface optic disc base board A that stainless steel constituted.In addition, compared to known discharging processing machine, it is the flexible mirror panel surface that constitutes by stainless steel, asperities is processed into 1.0 μ mRz and even 5.0 μ mRz, it is glassy to allow emulation optic disc base board A binding face be cloudy surface, and that the emulation optic disc base board A surface of this example can not form cloudy surface is glassy, and is maintained the transparency of emulation optic disc base board A.Moreover flexible mirror panel 24 film chambeies form face 24a coating Tin, and except release property was good, the film chamber of the mirror board 24 that also can take in sail during shaping formed the abrasion of face 24a.But when forming face 24a, also can be again the film chamber of flexible mirror panel 24 be formed face 24a finished machined and become above-mentioned surface smoothness because of the abrasion film chamber that is shaped between long-term.In addition, for the abrasion countermeasure of revising flexible mirror panel 24, with the scale error of two moulds 12,13, also can put into joint filling sheet and dividing plate at flexible mirror panel 24, movable inner panel 23 inner faces.
The aforementioned emulation optic disc base board A of the demoulding is by the knockout machine of not providing on graphic, adsorbs, shifts out from shaping optic disc base board machine.And the emulation optic disc base board A that is moved out of; be by the molding press that duplicates pothole (with call in the following text for " duplicate and use molding press "), what set does not provide the molding die on graphic and the copy substrate B that is shaped, passes through to fit after the engineering such as aluminium-vapour deposition and form.At this moment, then as shown in Figure 2, the pothole of copy substrate B, then applying emulation optic disc base board A binding face A1 on the duplicate surface B1 that is replicated.And; the projection that sees through interior all molding press supporting seat claws allows copy substrate B go up formed annular recessed portion B2, reaches by the circular protrusion 26B of interior all films chamber formation piece 26 formed annular recessed portion A2 on emulation optic disc base board A, carries out opposed on same position.When therefore fitting, applied in the adhesive agent D of duplicate surface B1, all hole A3, B3 in can't flowing to from aforementioned annular recessed portion A2, B2.And, thereafter emulation optic disc base board A binding face, then be printed in the printing surface A4 (on this example, being the face that forms face 18a formed thereby by fixed mirror panel 18 film chambeies) of opposition side, and form the DVD disk that has in contrast to the reading face B4 of copy substrate B duplicate surface B1.At this moment, print color can become the gonorrhoea shape, and does not influence outward appearance.
Moreover the present invention forms face 24a at the film chamber of the flexible mirror panel 24 by above-mentioned coating, form emulation optic disc base board A binding face A1 and narrate, but the printing surface A4 that also can be shaped.About form the face of the emulation optic disc base board A of face 24a formed thereby by the film chamber, its binding face A1 is expected and can promotes printing on follow-up engineering compared with printing surface A4.In addition, the mould that above-mentioned surface smoothness film chamber forms face 24a is set,,, is arranged on the flexible mould 13 then tool effect therefore in order to promote the release property after the die sinking because emulation optic disc base board A is subjected to 13 supports of flexible mould and die sinking.But the present invention is not subject to the foregoing description, and the fixed mirror panel membrane chamber that also can be coated with fixed mould forms face, to form the binding face A1 of emulation optic disc base board A by this film chamber formation face.In addition, by the shaping dies aspect of the copy substrate B of emulation optic disc base board A applying, aforementioned copy also can be equipped on fixed mould with molding press.Moreover, also can be shaped 2 above emulation optic disc base boards simultaneously and several film chambeies are set.
Next, with the mould for optical disc substrate forming 41 on explanation the present invention second example.Fig. 3 represents the significant points profile of the mould for optical disc substrate forming 41 of the present invention's second example.Shown in second example, be to be shaped simultaneously with several film chambeies 44,45, allow the emulation optic disc base board A that is fitted on copy substrate B and this copy substrate B, be formed at the mould for optical disc substrate forming 41 between fixed mould 42 and the flexible mould 43.Moreover, be same as the part of above-mentioned example in this description will be omitted.
The fixed mould 42 of the mould for optical disc substrate forming 41 of second example, built-in hot flow path (hotrunner) mechanism 46 is arranged, and having set the nozzle contact site 47 that the ejecting device nozzle on graphic is not provided in contact, this is to connect heating seated 48 on the aforementioned nozzle contact site 47 by heater.And 49 in molten resin path carries out difference with aforementioned seated 48 inside, molten resin is fed to aforementioned films chamber 44,45 again.And then there is the nozzle 50,50 that connects through identical heater heated seated 48 both sides, and nozzle 50,50 is connected to each sprue bush 51,51.And, then set gate plug-in unit 52,52 on aforementioned sprue bush 51,51 peripheries, then set the fixed mirror panel 53,53 that forms the cooling ditch on aforementioned gate plug-in unit 52,52 peripheries.And the flexible mould side surface of aforementioned fixation mirror board 53,53 does not all set and duplicates with molding press or blanking molding press, and aforementioned surfaces then forms the membrane chamber and forms face 53a, 53a.
In addition, the flexible mould 43 of second example is to set to have only the duplicating with molding press 55 (thickness 0.2mm nickel system is duplicated and used molding press) of flexible mirror panel 54 on 44 sides of side's film chamber.And aforementioned copy is with molding press 55, is by periphery molding press supporting seat 56, interior all molding press supporting seats 57, and do not provide molding press on graphic and attract the air attraction mode of means to be subjected to aforementioned flexible mirror panel 54 surfaces to support.In addition, on week, then set fixed sleeving 58 in interior all molding press supporting seats 57, Zhou Zeyou sets injector 59, public cutter 60, reaches outstanding pin 61 in it.And, on the flexible mirror panel 62 of 45 sides, the opposing party's film chamber, do not set and duplicate with molding press 55 or blanking molding press, form face 62a and allow flexible mirror panel 62 fixed mould sides form the membrane chamber.The film chamber of aforementioned flexible mirror panel 62 forms face 62a, belongs to the face that forms emulation optic disc base board A binding face A1, and the coating Tin as the above-mentioned example of execution is arranged, and promotes the release property of aforementioned binding face A1.In addition, also be same as above-mentioned example on the formations such as interior all films chamber formation piece 63, demoulding air flue 64.Moreover, be coated with the Tin except forming on the face 62a in the film chamber, also can be coated with at least a DLC, nitrogen compound, carbon compound and tungsten carbide, also be identical about this point.
Next, will the shaping of the mould for optical disc substrate forming 41 of second example be described.For fixed mould 42, flexible mould 43 can form two film chambeies 44,45 of variable volume by closing film.At this moment; on the film chamber 44 of shaping copy substrate B; then there is configuration thickness 0.2mm to duplicate with molding press 55; and thickness according to aforementioned molding press 55; be allow the film chamber of fixed mirror panel 53 form face 53a, with the fixed mould side surface of flexible mirror panel 54 between distance, designed the forming of also growing than the film chamber 45 of shaping emulation optic disc base board A of mode.Moreover, about the second example aspect, for optic disc base board A, the B thickness of slab of adjusting by film chamber 44,45 formed therebies inserts joint filling sheet or dividing plate or controls left and right sides nozzle 50,50 temperature individually, to adjust the ejaculation loading in molten resin film chamber 44,45 etc.And, by never providing the ejecting device on graphic, penetrate the molten resin of filling through the aforementioned hot runner mechanism, see through aforementioned two film chambeies 44,45 with optic disc base board A, the B of being shaped simultaneously.Thereafter after flexible mould 43 die sinkings, emulation optic disc base board A and copy substrate B all are subjected to flexible mould 43 and support.And, next when carrying out optic disc base board A, the B demoulding,, can form on the face 62a in the film chamber of flexible mirror panel 62 and be coated with Tin about emulation optic disc base board A aspect, allow binding face A1 be able to the smooth demoulding.In addition,, come from the also demoulding smoothly of duplicate surface B1 of duplicating, and the optic disc base board A, the B that are shaped simultaneously after the taking-up, fit on follow-up engineering then from forming machine then with molding press 55 about copy substrate B aspect.
Moreover, with second example example, illustrated and allowed copy substrate B and the emulation optic disc base board A that is fitted in this copy substrate B be shaped piecewise simultaneously, and the DVD-5 CD of fitting in follow-up engineering is shaped, but aforementioned mould for optical disc substrate forming, optic disc base board A, B etc. more than 2 also can simultaneously respectively be shaped.In addition, with one of embodiment, when the emulation optic disc base board is respectively sticked in the copy substrate both sides that are replicated in the two sides, also can be shaped simultaneously 3.Moreover, about the second example aspect, duplicate with molding press 55 and also can be equipped on fixed mould 42.
In addition, though aspect of the present invention each embodiment of particularize not is not defined in above-mentioned example, therefore haveing the knack of this operator also can follow purport of the present invention and changed, in every case according to modification of the present invention or change, so long as in purport scope of the present invention, all should contain and belong to the present invention.
Claims (2)
1. a mould for optical disc substrate forming is with formed film chamber between fixed mould and the flexible mould, and the optic disc base board that duplicated by pothole of being shaped, and the emulation optic disc base board that duplicates of the pothole of fitting is characterized in that:
On the aforementioned emulation optic disc base board binding face that forms the optic disc base board that is duplicated by aforementioned pothole is arranged, be coated with a kind of DLC, nitrogen compound, carbon compound and tungsten carbide at least not setting on the mirror board surface of molding press.
2. mould for optical disc substrate forming, be with formed several film chambeies between fixed mould and the flexible mould, be shaped the simultaneously optic disc base board that duplicated by pothole, and the emulation optic disc base board that duplicates of the pothole of fitting on the optic disc base board that this pothole duplicated is characterized in that:
At the optic disc base board that aforementioned pothole duplicated; set molding press on the mirror board surface, film chamber of formed thereby; and form the film chamber of aforementioned emulation optic disc base board formed thereby and the binding face of the optic disc base board that aforementioned pothole is duplicated; and do not setting on the mirror board surface of molding press, then having a kind of DLC of coating, nitrogen compound, carbon compound and tungsten carbide at least.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004083137A JP4024770B2 (en) | 2004-03-22 | 2004-03-22 | Dummy disk substrate mold |
| JP2004083137 | 2004-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1672904A true CN1672904A (en) | 2005-09-28 |
Family
ID=35045804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100001700A Pending CN1672904A (en) | 2004-03-22 | 2005-01-06 | Die for forming optical disk substrate |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4024770B2 (en) |
| KR (1) | KR100716496B1 (en) |
| CN (1) | CN1672904A (en) |
| TW (2) | TW200705439A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007253372A (en) * | 2006-03-22 | 2007-10-04 | Meiki Co Ltd | Mold for molding disk substrate, method for producing disk, and disk |
| WO2008111387A1 (en) * | 2007-03-15 | 2008-09-18 | Konica Minolta Opto, Inc. | Substrate for recording medium and method for producing substrate for recording medium |
| JP2009006615A (en) * | 2007-06-28 | 2009-01-15 | Taiyo Yuden Co Ltd | Optical disk and mold assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1058443A1 (en) * | 1999-06-02 | 2000-12-06 | Alcatel | User terminal with internal directory for storage of telephone numbers as well as an address of an external directory |
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2004
- 2004-03-22 JP JP2004083137A patent/JP4024770B2/en not_active Expired - Fee Related
- 2004-12-28 TW TW095105299A patent/TW200705439A/en not_active IP Right Cessation
- 2004-12-28 TW TW093141034A patent/TWI276100B/en not_active IP Right Cessation
-
2005
- 2005-01-06 CN CNA2005100001700A patent/CN1672904A/en active Pending
- 2005-01-26 KR KR1020050007137A patent/KR100716496B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100716496B1 (en) | 2007-05-09 |
| TW200705439A (en) | 2007-02-01 |
| TWI276100B (en) | 2007-03-11 |
| JP4024770B2 (en) | 2007-12-19 |
| TW200532683A (en) | 2005-10-01 |
| KR20050094347A (en) | 2005-09-27 |
| JP2005262842A (en) | 2005-09-29 |
| TWI329317B (en) | 2010-08-21 |
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