CN101024296A

CN101024296A - Optical disk substrate, forming method, mold, optical disk product and manufacturing method

Info

Publication number: CN101024296A
Application number: CN200610167721.7A
Authority: CN
Inventors: 蛯名利幸
Original assignee: Meiki Seisakusho KK
Current assignee: Meiki Seisakusho KK
Priority date: 2006-02-23
Filing date: 2006-12-19
Publication date: 2007-08-29
Also published as: TW200732129A; JP2007226888A; TWI309601B

Abstract

The invention discloses an optical disk substrate, a forming method, a die, an optical disk product and a manufacturing method, and solves the problem that the appearance of the manufactured optical disk product is not good because a wide flat horizontal plane cannot be ensured on the opposite surface of a stacking strip. In the technical means, on the CD substrate forming mold for forming the CD substrate in the cavity formed between the 1 st mold and the 2 nd mold, the 1 st mold is provided with a female mold for forming the signal surface, and the inner peripheral side of the female mold mounting part is provided with an annular concave part for forming the stacking strip; the 2 nd mold has a portion provided opposite to the mother mold and the annular recess, and a forming surface forming a flat horizontal surface. Therefore, the signal surface and the opposite surface of the formed optical disk substrate can ensure a wide horizontal surface on the signal surface and the opposite positions of the stacking strips, thereby not causing obstacles when the optical disk substrate is formed and cooled, and manufacturing an optical disk product with beautiful appearance.

Description

Optic disc base board and manufacturing process, mould, and optical disc product and method for making

Technical field

It is relevant to the present invention relates to a kind of optical disc substrate forming mould, optic disc base board and optical disc product, during particularly relevant for the optic disc base board of stacking supporting injection molding, does not allow optic disc base board signal face contact the formation of the heap layer bar of other optic disc base board.

Background technology

Optic disc base board and its method for making that tradition forms heap layer bar (Stack Rib) then have patent documentation 1 to patent documentation 3; Have on the patent documentation 1 (spy opens bulletin 2006-12331 number) openly, on the two sides, form the optic disc base board of heap layer bar; But about patent documentation 1 aspect,, therefore can't on one side, guarantee flat horizontal face widely, and can't carry out the printing etc. of wide scope, so the optical disc product of manufacturing has the not good problem of outward appearance because a heap layer bar arranged on the two sides.

In addition, the optic disc base board that is disclosed in female die seat claw inner face side formation heap floor bar is arranged in patent documentation 2 (spy opens bulletin 2000-207790 number); But patent documentation 2 has the recess that forms the female die seat vestige on heap layer bar opposing face, therefore can't guarantee flat horizontal face widely on aforementioned opposing face, so the optical disc product of manufacturing has the not good problem of outward appearance.

The case that publication document 1 is arranged on the Fig. 5 in the patent documentation 3 (spy opens bulletin 2002-251784 number), have on Fig. 3 and disclose general case, and the heap layer bar radial direction position in the patent documentation 3, be set at and be same as the formed recess location of female die seat claw; But citing document 3 belongs to by the change peripheral direction so that generous and the thin part of heap layer bar to be set, and female die seat vestige recess is embedded in the open example of two optic disc base boards of overlapping after heap layer bar or the devices spaced apart again; But 3 of patent documentations are provided with by the formed recess of female die seat claw on heap layer bar opposing face, therefore can't guarantee flat horizontal face widely on aforementioned opposing face, so the optical disc product of manufacturing have the not good problem of outward appearance.

Summary of the invention

The object of the present invention is to provide a kind ofly to be used for solving, can't guarantee flat horizontal face widely at a heap layer bar opposing face, the optical disc product outward appearance that the causes optical disc substrate forming mould of good problem not; In addition, also provide optic disc base board and the optical disc product that solves foregoing problems; Moreover, the variety of issue when solving aforementioned molding optical disc substrates or making aforementioned optical disc product also is provided; In addition, problem of the present invention is not defined in the particular optical disk substrate, reaches the particular optical disk product, and the laser light that is used for separately reading also can be used on the Blu-ray Disc (Blue-ray Disk) of short wavelength hyacinthine laser light or blue laser light.

The present invention adopts following technological means to realize:

Optical disc substrate forming mould of the present invention, between first mould and second mould in the formed cavity, carry out on the optical disc substrate forming mould of molding optical disc substrates, first mould is provided with the master mold that forms the signal face, and is formed with the annular recessed portion of heap layer bar (Stack Rib) on interior all sides that the master mold part is installed; Second mould then has with aforementioned master mold, reaches the formation face that annular recessed portion is the position formation flat horizontal face of subtend setting.

According to above-mentioned optical disc substrate forming mould, first mould is a flexible mould, and it has set the outer cutter that the mode that can move forward forms the optic disc base board centre bore, is provided with annular recessed portion between interior all female die seat claws of cutter and master mold outside supporting.

Sleeve component of the present invention is equipped in interior all holes of all female die seat in the flexible mould of above-mentioned optical disc substrate forming mould, has formed the annular recessed portion that has at least a part to be used to form heap layer bar on cavity formation face.

Molding optical disc substrates method of the present invention is used above-mentioned optical disc substrate forming mould, is forming the signal face on the one side of optic disc base board, is reaching the heap layer bar that all sides are given prominence to from this signal face in this signal face; Another side, then be shaped with aforementioned signal face, and heap layer bar on be the flat horizontal face that subtend is provided with.

Optical disc product method for making of the present invention on the one side by the optic disc base board of above-mentioned molding optical disc substrates method formed thereby, except aforementioned heap layer bar, is provided with protective layer on aforementioned signal face; Another side then is on the position that subtend is provided with at aforementioned signal face and aforementioned heap layer bar and forms the flat horizontal face, and this horizontal plane has the enforcement surface treatment.

Optic disc base board of the present invention forms the signal face on one side, another side forms the optic disc base board of horizontal plane, in form on the aforementioned one side signal face, and in this signal face all sides from the outstanding heap layer of this a signal face bar; Another side, then form with the signal face, and heap layer bar be on the position that subtend is provided with and form the flat horizontal face.

Optical disc product of the present invention, one side are provided with the protective layer of protection optic disc base board signal face, and another side then has the surface-treated of enforcement optical disc product; Form on the one side of aforementioned lights disc board the signal face, and in this signal face all sides in the outstanding heap layer bar of this signal face, except heap layer bar, on the signal face, be provided with protective layer; The another side of optic disc base board, then with aforementioned signal face, and the bed course bar be the part that subtend is provided with and form the flat horizontal face, the enforcement surface treatment is arranged on this horizontal plane.

The present invention compared with prior art has following remarkable advantages and beneficial effect:

Optical disc substrate forming mould of the present invention belongs to, and in the formed cavity, carries out the optical disc substrate forming mould of molding optical disc substrates between first mould and second mould; First mould is provided with the master mold that forms the signal face, and on interior all sides that this master mold part is installed, the annular recessed portion of tangible layer bar in heaps (Stack Rib); Second mould then with aforementioned master mold, and annular recessed portion be on the position that subtend is provided with, form the formation face of flat horizontal face, therefore on the another side of optic disc base board one signal face that is shaped and subtend, can on the position that is the subtend setting on signal face and the heap layer bar, guarantee horizontal plane widely, and for being shaped and bringing obstacle during the cooling optic disc base board, moreover, also can produce the optical disc product of outward appearance grace.

Description of drawings

Fig. 1: the main position profile of the invention process kenel optical disc substrate forming mould.

Fig. 2: the Blu-ray Disc amplification profile of the invention process kenel.

Fig. 3: other implements the main position profile of the optical disc substrate forming mould of kenel the present invention.

Fig. 4: other implements the Blu-ray Disc amplification profile of kenel the present invention.

Fig. 5: other implements the main position profile of the optical disc substrate forming mould of kenel the present invention.

The specific embodiment

Below in conjunction with accompanying drawing specific embodiments of the invention are illustrated:

Consult Fig. 1 so that the optical disc substrate forming mould of enforcement kenel of the present invention to be described; Fig. 1 is the main position profile of the optical disc substrate forming mould of this enforcement kenel; The optical disc substrate forming mould 11 of this enforcement kenel thickness of slab 1.1mm, diameter 120mm (all the containing the shaping error) Blu-ray Disc (according to Blue-ray Disc Rewritable Format, for registration mark) that is used to be shaped is used optic disc base board.

Optical disc substrate forming mould 11 has as shown in Figure 1 comprised the flexible mould 12 of the 1st mould and the fixed mould 13 of the 2nd mould, then forms the cavity 14 of variable volume between two

moulds

12,13 of matched moulds; Being installed in the flexible mould 12 that is not indicated in graphic emission forming machine movable disk has comprised, be bonding on the active side mirror board 15 that is not indicated in graphic movable inner panel, be equipped on aforementioned mirror board 15 surfaces to form the master mold 16 of signal face, and be equipped on all holes in the aforementioned mirror board 15, to support interior all female die seat 17 of aforementioned master mold 16, and the fixed sleeving 19 that all holes are set in interior all female die seat 17, the ejector sleeve pipe 20 that all holes are set in the aforementioned fixation sleeve pipe 19, the cylindric outer cutter 21 that all holes are set in the ejector sleeve pipe 20, be intercalated in the outstanding latch 22 in all holes in the outer cutter 21, support master mold 16 peripheral parts and be not shown in graphic periphery female die seat etc.

Flexible mould 12 each position at the 1st mould are described in detail; Mirror board 15 belongs to thin cylindrical member, and the surperficial 15a of cavity 14 sides has the enforcement mirror finish; In addition, mirror board 15 inner faces (being bonding on movable inner panel) have then formed the cooling medium stream 15b that is used for mobile cooling medium; Interior all female die seat 17 belong to cylindrical member, and the outer circumference end that cavity forms face is provided with the claw 18 that is used for fixing master mold 16; Claw 18 outer circumference end in this enforcement kenel can be arranged at diameter 22.3mm part; And claw 18 is shaped as height 0.1mm～0.4mm, and the outstanding size from body toward master mold 16 sides is about 0.1mm～0.2mm; The thickness of slab of master mold 16 is about 0.2mm～0.6mm degree, then forms on the surface to allow signal be formed at the trickle lug boss of optic disc base board D1 signal face D2; Moreover, the ditch when aforementioned signal face D2 also can form as recording type optical disc etc.

Fixed sleeving 19 is a cylindrical member, can be between interior all female die seat 17 ejection demoulding air the gap 23 of about 20 μ m; Moreover aforementioned gap 23 positions are the best to be arranged at diameter 17.0mm～20.5mm scope then; Size when in addition, the size on these moulds all belongs to normal temperature; In addition, on the cavity formation face of the fixed sleeving 19 of sleeve component, then on optic disc base board D1, form the part annular recessed portion 24 that is used to form heap layer bar (Stack Rib) D3; The ejector sleeve pipe 20 of sleeve component has comprised cylindrical member, during demoulding optic disc base board D1, can be arranged at by not being shown in the graphic driving means part that moves forward; And on the cavity formation face of ejector sleeve pipe 20, formed the part annular recessed portion 24 that is used to form aforementioned heap layer bar D3; Therefore the annular recessed portion 24 in this enforcement kenel is formed at fixed sleeving 19 set between interior all female die seat 17 claws 18 and the outer cutter 21, reaches on the ejector sleeve pipe 20.

Shown in the record on background technology hurdle, the purpose that heap layer bar D3 is set on optic disc base board D1 is, during optic disc base board D1 that stacking cooling has been shaped, do not allow optic disc base board (especially signal face) be in contact with one another; Heap layer bar D3 among the present invention partly is the best outer circumference end is arranged at diameter 16mm～22mm then; Moreover, be arranged on 17mm～19.5mm part better; The Rib bottom width is 0.5mm～5.0mm, is the best with 0.8mm～2.0mm especially, and heap layer bar top width is that 0.1mm～2.0mm is for best; And the Rib height is the best with 0.1mm～0.3mm; Therefore answer the annular recessed portion 24 of aforementioned shapes heap layer bar D3 size, then be formed at the interior all sides that are installed in flexible mould 12 master molds 16 parts; Moreover, even aforementioned annular recessed portion 24 is not to be continuous annular fully, also on cyclic position, being provided with plural recess, plural number heap layer bar D3 also can be by assortment circlewise; In addition, the heap layer bar D3 section shape in this enforcement kenel belongs to trapezoidal, is that R face or top are various kenels such as dihedral but also can make upper face side.

In addition, as annular recessed portion 24 being arranged at the part between outer cutter 21 and interior all female die seat 17 and the claw 18, in so also can being provided with wherein 1 or wherein more than 2 of all female die seat 17, fixed sleeving 19, ejector sleeve pipe 20; Moreover, when interior all female die seat and fixed sleeving are the interior all female die seat that is made of identical components, also can be arranged at all female die seat surface in it.When if genus is aforementioned, then, be arranged at annular recessed portion inside or bad shape recess outer circumferential side for best with demoulding air squit hole; In addition, also can with annular recessed portion 24 or the cavity that contains all female die seat 17, fixed sleeving 19, ejector sleeve pipe 20 within the annular recessed portion 24 forms a part of of face or all, asperities is processed into Rz0.05 μ m～0.4 μ m, so that easier demoulding.

On the other hand, be installed in the 2nd mould fixed mould 13 that does not indicate on the graphic emission forming machine fixed disk and comprised, be bonding on all holes are set in the fixation side mirror board 25 that do not indicate graphic fixedly inner panel, the mirror board 25 insertion gate 26, insert all holes are set in the gate 26 interior cutter 27, and in the sprue bush 28 that set in all holes in the cutter 27 etc.; Each position of fixed mould 13 below will further be described in detail in detail; Mirror board 25 belongs to thin cylindrical member, and cavity forms face 25a the enforcement mirror finish; Moreover aforementioned cavity forms that face 25a asperities is processed into Rz0.05 μ m～0.4 μ m so that easily demoulding the time, also horizontal plane D6 can be made the embossing shape; In addition, mirror board 25 inner faces (be bonding on fixedly inner panel on) then form the cooling medium stream 25b of the cooling medium that flow; And during demoulding.Can and insert between the gate 26 from aforementioned mirror board 25 and spray air the crack 29; Set sprue bush 28 on interior all holes of interior cutter 27, the front end face of sprue bush 28, capable again setting after then retreating from interior cutter 27 flexible mould subtend faces; Moreover, about interior cutter aspect, on the burr countermeasure that forms optic disc base board D1 centre bore D5, also can be only be arranged on the flexible mould subtend face interior all holes are side-prominent.

And the cavity of fixed mould 13 mirror boards 25 forms the cavity formation face 26a of face 25a, insertion gate 26, the cavity of interior cutter 27 forms face 27a, and each forms so that equal height is set, then constitutes the level that formation horizontal plane D6 on the optic disc base board D1 and forms face; When therefore optic disc base board D1 is shaped and the opposite position of optic disc base board D1 signal face D2 forms flat horizontal face D6 (also comprise because of the gap between mold component, and the smooth definition during some microtriche limit); In addition, close with the position of fixed mould 13 at flexible mould 12 and to fasten, set fixation side mirror board 25 in the mode that slightly is subtend towards the master mold 16 of active side; In addition, all inwardly female die seat 17 have set insertion gate 26 with fixed sleeving 19 in the mode that slightly is subtend; Moreover, set interior cutter 27 towards ejector sleeve pipe 20 in the mode that slightly is subtend; In addition, cutter 21 has set sprue bush 28 in the mode that slightly is subtend outwardly, and outer cutter 21 front ends that can move forward and be provided with, cutter 27 in then being embedded in.

Next, will be with Fig. 2 explanation optic disc base board D1 by this enforcement kenel optical disc substrate forming mould 11 formed therebies, and with the Blu-ray Disc D (registration mark) (being designated hereinafter simply as " Blu-ray Disc D ") and the Blu-ray Disc D method for making of the optical disc product of this optic disc base board D1 manufacturing; According to shown in Figure 2, be the Blu-ray Disc amplification profile of this enforcement kenel.

The shaping program of optic disc base board D1 at first will be described.Running is not shown in the clamping apparatus of graphic emission forming machine, with the mobile flexible mould 12 that is installed in movable disk, and carries out mold closing; 12 of flexible moulds are embedded in the fixed mould 13 that is installed on the fixed disk with this, to form variable volume cavity 14; Next, advance be not shown in the spiral of graphic ejecting device after, by aforementioned ejecting device nozzle, and reasonable fixed mould 13 sprue bush 28 of this nozzle of contact, allow molten resin in the ejecting device heating cylinder, penetrate and be filled in the aforementioned cavity 14; What the thermoplastic transparent resin in this enforcement kenel used is Merlon, and is filled in the aforementioned cavity 14 with 300 ℃～340 ℃ nozzle temperature ejaculation; And when filling molten resin to penetrating in the cavity 14, the clamping apparatus that turns round again allow flexible mould 12 advance toward fixed mould 13, and the molten resin in the compaction cavum 14 is to carry out good duplicating; Because this enforcements kenel is shaping Blu-ray Disc D optic disc base board D1, therefore aforementioned master mold 16 and mirror board 25 cavitys of fixation side form the interval of face 25a, and meeting is with the position that the is similar to 1.1mm mould 12 of stopping action.

Next, allow the outer cutter 21 of flexible mould 12 advance in the cuttves 27 in the fixed mould 13 cutting off cast gate, and the centre bore D5 of opening optic disc base board D1; Moreover this enforcement kenel is the outer cutter 21 open centre hole D5 by the flexible mould 12 that forms signal face D2, therefore reads the centre bore D5 of Blu-ray Disc D time institute mounting, and the burr problem of the D10 of mounting portion does not take place.

Ejaculation is filled in the molten resin in the cavity 14, then parallel with aforementioned compression and aforementioned cut-out cast gate, and by the cooling optical disc substrate forming mould 11 carry out cooling curing, and in cavity 14 behind the cooling curing molten resin, next then begin from aforementioned fixed mould 13 mirror boards 25 and the gap 29 of inserting gate 26, and flexible mould 12 in spray the demoulding air the gap 23 etc. of all female die seat 17 and fixed sleeving 19; And, allow aforementioned demoulding air spread all over mould cavity and form between face and the optic disc base board D1, retreat mobile flexible mould 12 simultaneously to carry out die sinking; At this moment, the annular recessed portion 24 of flexible mould 12, also can be from the peripheral gap 23 ejection demoulding air, with an optic disc base board D1 signal face D2 and a heap layer bar D3 who simultaneously air is sent into flexible mould 12, with light demoulding; The optic disc base board D1 of formed thereby reaches and is not shown in graphic cast gate in this enforcement kenel, mobile simultaneously flexible mould 12 when die sinking then, and finish on the die sinking position, by the taking-up that is not shown in graphic knockout machine robot adsorbed water plane D6, advancing by ejector sleeve pipe 20 simultaneously, and,, separate cast gate fully from optic disc base board D1 in addition simultaneously also by outstanding latch 22 from flexible mould 12 complete demouldings.

By the optic disc base board D1 of this enforcement kenel formed thereby, constitute the Blu-ray Disc D that as shown in Figure 2; In other words, optic disc base board D1 thickness is that the diameter of 1.1mm, diameter 120mm, centre bore D5 is 15mm (all contains and allow the shaping error range); And on the one side (forming the face of below when reading) of aforementioned lights disc board D1, on diameter 22mm～23mm part, be provided with claw 18 formed recess D4 outer circumference end according to interior all female die seat 17, then form signal face D2 on its outer circumferential side by master mold 16; In addition, on interior all side diameter 16mm～22mm position of aforementioned recess D4, heap layer bar D3 outer circumference end then forms with aforementioned recess D4 and is concentric circles; Moreover the aforementioned signal face D2 of aforementioned lights disc board D1 goes up the position that is the subtend setting with a signal face D2 or a heap layer bar D3 at another side (face of formation top when reading), the burr slightly except between member etc., all forms smooth horizontal plane D6.

Next, by taking out, be not to be shown in the graphic cooling stacking cooling of bunker by the optic disc base board D1 that robot took out; Cooling has set the vertical direction pillar with the bunker centre, and insert to lead to centre bore D5 in this pillar, allows the signal face D2 of bottom surface be the mode mounting optic disc base board D1 of level; At this moment, optic disc base board D1 is provided with heap layer bar D3, and the front end face of aforementioned heap layer bar D3 then rationally is contacted with on the horizontal plane D6 of below optic disc base board D1, and optic disc base board D1 shoulder to shoulder can carry out stacking in the mode of horizontal plane D6 that does not contact D1 and signal face D2 up and down.

After finishing cooling (contain annealing engineering) optic disc base board D1, next optic disc base board D1 is sent to the aluminium-vapour deposition device, handling the signal face, and goes up in signal face D2 and to form aluminium-vapour deposition layer D7 by aluminium-vapour deposition; Moreover, also can handle the signal face by other method; The optic disc base board D1 that forms aluminium-vapour deposition layer D7 then is provided with and is used to protect the signal face D2 protective layer D8 of (containing aluminium-vapour deposition layer D7); Protective layer D8 thickness of slab on this enforcement kenel is 0.1mm, and diameter (external diameter) is same as optic disc base board D1, and central opening portion diameter (internal diameter) is then fitted with adhesive agent greater than the resin plate of optic disc base board D1 recess D4 outer circumference end; Therefore, for the heap layer bar D3 part of optic disc base board D1, got rid of the central opening portion of protective layer D8, heap layer bar D3 does not cause obstacle when therefore fitting; Moreover the heap layer bar D3 on the optic disc base board D1 also can be by being 0.2mm and even 0.3mm with height setting, and after forming protective layer D, coincide under the situation that does not contact optic disc base board D1 and D1; The protective layer D8 that forms except aforementioned, also on signal face D2 the aqueous resin of coating with rotation optic disc base board D1, again by photo-hardening or shine the ultrared method aforementioned aqueous resin that hardens, to form protective layer D8; In addition, the standard thickness of protective layer D8 is 0.1mm, but also can be in 0.05mm and even 0.2mm scope.

And form to have on the optic disc base board D1 horizontal plane D6 of protective layer D8 and print; Optic disc base board D1 in this enforcement kenel, be from be smooth horizontal plane D6 comprehensively, be formed near the centre bore D5 or centre bore D5, owing to contain on the whole subtend face of signal face D2 and heap layer bar D3, the surface treatments such as printing of implementing to form printed layers D9 are arranged, therefore can produce the good optical disc product of outward appearance; But do not need whole horizontal plane D6 is printed, also can be from area than printing in 80～100% scopes; In addition, the surface treatment of horizontal plane D6 also can be adopted the printing be not dependent on, but pastes other surface treatment methods such as glued membrane or paper; In addition, carried out according to the order of handling signal face, formation protective layer, printing horizontal plane, but also replaceable order; Going through the Blu-ray Disc D of aforementioned engineering manufacturing, is the side from protective layer, reads with short wavelength's (405nm) blue laser light or hyacinthine laser light; Moreover, the Blu-ray Disc D of this enforcement kenel is that therefore the circulation product is that Blu-ray Disc D is installed in the reading device to read through directly packing the back, do not put into receiver and the product that circulates but therefore do not get rid of, again each receiver is installed on the reading device.

Next, the optical disc substrate forming mould 31 of other enforcement kenel that explanation is shown in Figure 3; Fig. 3 implements the main position profile of the optical disc substrate forming mould of kenel for other; Optical disc substrate forming mould 31 be provided with the flexible mould 32 of first mould interior all female die seat 33, fixed sleeving 34, stride across ejector sleeve pipe 35 to form the annular recessed portion 36 of heap layer bar D3a; Therefore, the cavity of fixed sleeving 34 forms the face position and exists, all female die seat 33 outer circumferential side fixed mould subtend faces in being lower than, and ejector sleeve pipe 35 in the position (interior location) of fixed mould subtend face of all sides; And, be from the gap 37 ejection demoulding air of interior all female die seat 33 with fixed sleeving 34; In addition, interior all female die seat 33 claws 38 of this enforcement kenel do not protrude in fixed mould 42 sides of second mould, but claw 38 inner faces form the taper of hole enlargement gradually towards fixed mould 42 sides; And, be embedded in master mold 39 centre bores 40 of aforementioned claw 38, then towards inner face side (mirror board 41 sides of active side) hole enlargement; Therefore this enforcement kenel is not outstanding towards master mold 39 surfaces, and is all smooth interior all female die seat 33 claws 38 by fixed mould subtend face, with supporting master mold 39; Therefore molten resin is penetrated when being filled in cavity 43, claw 38 does not hinder flowing of molten resin; In addition, the demoulding air that allows gap 37 spray spreads all between the signal face D2a of master mold 39 and optic disc base board D1a easily.

Moreover the flexible mould 32 on Fig. 3 optical disc substrate forming mould 31 waits other member and fixed mould 42, because of being same as enforcement kenel Therefore, omited explanation shown in Figure 1; And the Blu-ray Disc Da processing procedure of the optical disc product of the shaping program of optic disc base board D1a and optic disc base board D1a manufacturing also together, the Therefore, omited explanation; Moreover interior all female die seat 33 claws 38 shown in Figure 3 then as shown in Figure 4, is characterized in that, by the Blu-ray Disc Da of smooth optical disc substrate forming mould 31 manufacturings, then are smooth with the position of aforementioned claw 38 formed therebies; Therefore, also visual its need be provided with protective layer D8a near heap layer bar D3a.

Next, the optical disc substrate forming mould 51 of other enforcement kenel that explanation is shown in Figure 5; Fig. 5 represents the main position profile of the optical disc substrate forming mould of other enforcement kenel; 51 fixation side mirror board 53 surfaces on the first mould fixed mould 52 of optical disc substrate forming mould have set the master mold 54 that forms the signal face; And fixed mould 52 has set interior all female die seat 55 on all holes in aforementioned mirror board 53, to support master molds 54 by all female die seat 55 claws 56 in aforementioned; In addition, interior all holes of all female die seat 55 in 52 of fixed moulds are equipped on interior cutter 57, the sprue bush 58 in the interior cutter 57 then is equipped on going-back position; And, on interior cutter 57 cavity formation faces, then form the annular recessed portion 59 of piling layer bar D3; In addition, be provided with the gap 60 that is used to spray the demoulding air between interior all female die seat 55 and the interior cutter 57; Moreover annular recessed portion 59 also can only be provided with interior all female die seat 55 or be arranged at interior all female die seat 55 and interior cutter 57 both sides, and all female die seat 55 and interior cutter 57 are arranged on this member again in also can forming from identical components; And, during cutter 57, can supply the demoulding air that is sprayed from crack 60 between interior cutter 57 and the interior all female die seat 55, to carry out good demoulding in annular recessed portion 59 is arranged to master mold 54 sides and annular recessed portion 59 both sides.

In addition, the flexible mould 61 of enforcement kenel second mould shown in Figure 5 is being on the position of subtend towards aforementioned master mold 54, has set the mirror board 62 of active side; In aforementioned mirror board 62 in all holes, and with aforementioned in all female die seat 55 be on the position of subtend, set fixed sleeving 63; In addition, in interior all holes of fixed sleeving 63, and with aforementioned in cutter 57 be and set ejector sleeve pipe 64 on the position of subtend; And the cavity that aforementioned mirror board 62 is set with equal height forms the cavity formation face 63a of face 62a, fixed sleeving 63, the cavity formation face 64a of ejector sleeve pipe 64, and can form flat horizontal face D6 on optic disc base board D1; And about forming variable volume cavity 65 aspects between fixed mould 52 and flexible mould 61, though the structure difference, 11 of aforementioned optical disc substrate forming moulds shown in Figure 1 are identical.

Therefore except the minutia of optic disc base board D1 shown in Figure 2, the optic disc base board D1 of optical disc substrate forming mould 51 formed therebies slightly together; Moreover, if change female die seat shape and master mold center hole shape, the optic disc base board D1a that also can be shaped shown in Figure 4; In addition, also together, therefore, in this description will be omitted for the processing procedure of the optical disc product D of optic disc base board D1 shaping program and optic disc base board D1 manufacturing.

In addition, though the present invention's particularize not is not confined to above-mentioned and implements kenel, it also is applicable to that being familiar with this operator follows the change that main contents of the present invention are done; The resin kind of using is not defined in aforementioned Merlon, can make other resin of the remarkable optical characteristics of apparatus yet; In addition, except the master mold by optical disc substrate forming mould forms the signal face, also can on the master mold surface, use light-hardening resin to duplicate, to reach formation signal face in follow-up engineering.

Claims

1, a kind of optical disc substrate forming mould, it is characterized in that: between first mould and second mould in the formed cavity, carry out on the optical disc substrate forming mould of molding optical disc substrates, first mould is provided with the master mold that forms the signal face, and on interior all sides that the master mold part is installed, the annular recessed portion of tangible layer bar in heaps; Second mould then have with aforementioned master mold, and aforementioned annular recessed portion be on the position that subtend is provided with, formed the formation face of flat horizontal face.

2, optical disc substrate forming mould according to claim 1, it is characterized in that: first mould is a flexible mould, it has set the outer cutter that can form the optic disc base board centre bore in the reach mode, between the interior all female die seat and claw of cutter and master mold, is provided with aforementioned annular recessed portion outside supporting this.

3, a kind of sleeve component is characterized in that: be equipped in interior all holes of all female die seat in the described flexible mould of aforementioned claim 2, and formed the annular recessed portion that has at least a part to be used to form heap layer bar on cavity formation face.

4, a molding optical disc substrates method is characterized in that: use the described optical disc substrate forming mould of claim 1, make form on the one side of optic disc base board the signal face, and in this signal face all sides from the outstanding heap layer of this a signal face bar; Make the another side of optic disc base board, form with aforementioned signal face, and aforementioned heap layer bar be the flat horizontal face that subtend is provided with.

5, a kind of optical disc product manufacture method is characterized in that: on the one side of the optic disc base board of described molding optical disc substrates method formed thereby by claim 4, except aforementioned heap layer bar part, be provided with protective layer on aforementioned signal face; Another side then is on the position that subtend is provided with aforementioned signal face and aforementioned heap layer bar and forms the flat horizontal face, and this horizontal plane has the enforcement surface treatment.

6, a kind of optic disc base board is characterized in that: form the signal face on one side, another side forms the optic disc base board of horizontal plane, in form on the aforementioned one side signal face, and in this signal face all sides from the outstanding heap layer of this a signal face bar; In aforementioned another side, then form with aforementioned signal face, and heap layer bar be on the position that subtend is provided with and form the flat horizontal face.

7, a kind of optical disc product method for making, it is characterized in that: one side is provided with the protective layer of protection optic disc base board signal face, another side then has on the surface-treated of enforcement optical disc product, form on the one side of aforementioned lights disc board the signal face, and in this signal face all sides in the outstanding heap layer of this signal face bar, except aforementioned heap layer bar part, on aforementioned signal face, be provided with protective layer; At the another side of aforementioned lights disc board, then form with aforementioned signal face, and heap layer bar be on the position of subtend setting and formed the flat horizontal face, on horizontal plane, implement surface treatment.