CN2758053Y - Optical disk substrate forming device - Google Patents

Optical disk substrate forming device Download PDF

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Publication number
CN2758053Y
CN2758053Y CNU2004201203772U CN200420120377U CN2758053Y CN 2758053 Y CN2758053 Y CN 2758053Y CN U2004201203772 U CNU2004201203772 U CN U2004201203772U CN 200420120377 U CN200420120377 U CN 200420120377U CN 2758053 Y CN2758053 Y CN 2758053Y
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CN
China
Prior art keywords
molding
information area
base board
molding die
shaped
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Expired - Fee Related
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CNU2004201203772U
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Chinese (zh)
Inventor
蛯名利幸
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Meiki Seisakusho KK
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Meiki Seisakusho KK
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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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B29C45/2632—Stampers; Mountings thereof
    • B29C2045/264—Holders retaining the inner periphery of the stamper

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  • Manufacturing Optical Record Carriers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A molding device capable of molding an optical disk substrate including a non-information section at low cost and avoiding the occurrence of a defective bonding of an optical disk, comprising a molding press 62 for molding an information section 41, an inner peripheral molding press 64 for supporting the inner peripheral portion of the molding press 62, a 1 st molding die 61 for molding an optical disk substrate 42 including an information section 41, a mirror surface plate 22 for molding a non-information section 43, an inner portion for molding a non-information section 43 on the mirror surface plate 22, and an annular protrusion 33 provided on an inner member 35 of the mirror surface plate 22, a 2 nd molding die 12 for molding an optical disk substrate 44 including a non-information section 43, and the outer peripheral end 66 position of a flange 65 of the inner peripheral molding press 64 of the 1 st molding die 61 and the outer peripheral end 39 position of the annular protrusion 33 of the 2 nd molding die 12, mutually different in the radial direction.

Description

The molding optical disc substrates device
Technical field
The utility model is relevant for a kind of optic disc base board that comprises (area) between the information area of applying CD and comprise the optic disc base board between the no information area and the molding optical disc substrates device that is shaped.
Background technology
Most DVD class applying CD all is to form with the adhesive agent optic disc base board manufacturing comprise the optic disc base board between the information area and to comprise between the no information area of fitting.Comprising in shaping aforementionedly has the optic disc base board between the information area and comprises on the building mortion of the optic disc base board between the no information area; the molding die that comprises the optic disc base board between the information area in order to shaping; be by periphery molding press support (holder) and interior all molding press supports, the molding press (stamper) of duplicating information is installed.Because the part of interior all molding press support blade of a sword portion is outstanding towards groove (cavity), then forms annular groove near comprising the optic disc base board central opening that is formed with between the information area.In addition, comprise the molding die aspect of the optic disc base board between the no information area, belong to expensive emulation (dummy) molding press together about shaping, its by periphery molding press support and interior all molding press supports to fix.Because fixedly interior all molding press support blades of a sword portion part of emulation molding press also is outstanding towards groove, so on the position that comprises the optic disc base board between the no information area equally, then forms annular groove.
Above-mentioned known configurations can be consulted:
Te Kaiping 10-302317 communique (0020, Fig. 1, Fig. 2)
Te Kaiping 10-11821 communique (0017, Fig. 1, Fig. 2)
Te Kaiping 11-120618 communique (0028, Fig. 3, Fig. 4)
The problem points that the utility model institute desire solves
On the molding optical disc substrates device of traditional applying CD that is shaped, comprise the molding die of the optic disc base board between the no information area in order to shaping, then because of saying as described above, expensive emulation molding press has been installed, so cause the higher reason of die manufacturing cost.In addition, after reaching regulation shaping number of times, just must carry out the replacing operation of running stores (emulation molding press).And the molding optical disc substrates device by traditional applying CD that is shaped, when comprising the optic disc base board between the information area and comprising optic disc base board between the no information area, understand on same position, forming burr, and burr contact with each other with applying.Thus, just can't the optic disc base board of fitting on deciding at interval, and bubble (bubble) problem appears in used adhesive agent when applying aforementioned lights disc board.
Novel content
The purpose of the utility model is, because this situation and provide a kind of the shaping to comprise optic disc base board between the no information area with low cost, and when the applying CD, it is bad not fit, and the building mortion that can be shaped and comprise the optic disc base board between the information area and comprise the optic disc base board between the no information area.
Molding optical disc substrates device described in the utility model, comprising is used to be shaped comprises optic disc base board between the information area, and fitted between the information area and comprise the building mortion of the optic disc base board between the no information area; It is characterized in that: possess the molding press between the shaping information area; support interior all pressing mold pressing plates of perimembranous in the molding press; shaping comprises the 1st molding die of the optic disc base board between the information area; mirror board between the no information area is shaped; the inside part of the no information segment part of shaping on mirror board; with the ring-shaped protrusion that is arranged at the mirror board inner member; and be provided with and comprise between the no information area and the 2nd molding die of shaping optic disc base board; and the interior all pressing mold pressing plate blades of a sword portion peripheral end position on these the 1st molding dies; with the ring-shaped protrusion peripheral end position on the 2nd molding die, different each other diametrically each other.
The utility model is according to above-mentioned molding optical disc substrates device, and its feature also is: for the interior all pressing mold pressing plate blades of a sword portion peripheral end position on the 1st molding die, the ring-shaped protrusion peripheral end position on the 2nd molding die is positioned at radial outside.
The utility model is according to above-mentioned molding optical disc substrates device, its feature also is: on the mirror board surface that is shaped on the 2nd molding die between the no information area, be coated with at least a DLC, nitrogen compound, carbon compound and tungsten carbide or directly carry out asperities processing on the mirror board surface.
The utility model effect:
The utility model effect is, on a kind of molding optical disc substrates device of the applying CD that is shaped, allowing is shaped to comprise interior all pressing mold pressing plate blades of a sword portion peripheral end position of the 1st molding die of the optic disc base board between the information area, and the ring-shaped protrusion peripheral end position on the 2nd molding die that comprises the optic disc base board between the no information area that is shaped, different each other diametrically each other, and because of the groove surface that is shaped between the no information area is made of mirror board, to comprise optic disc base board between the no information area so use low cost to be shaped, and when fitting into CD, it is bad to fit.
Description of drawings
Fig. 1: on the molding optical disc substrates device of this example, being shaped comprises the 2nd molding die profilograph of the optic disc base board between the no information area.
Fig. 2: on the molding optical disc substrates device of this example, the 1st molding die comprise the optic disc base board between the information area of being shaped, and be shaped and comprise the 2nd molding die significant points profile of the optic disc base board between the no information area.
Fig. 3: by the molding optical disc substrates device of this example, formed thereby comprise optic disc base board between the information area, near and the amplification profile of cd centre's opening of fitting and comprising the optic disc base board between the no information area.
The specific embodiment
Below based on describing the utility model example shown in the drawing in detail.
Shown in Figure 1, on this example molding optical disc substrates device, being shaped comprises the 2nd molding die profilograph of the optic disc base board between the no information area.Shown in Figure 2, on the molding optical disc substrates device for this example, the 1st molding die comprise the optic disc base board between the information area of being shaped, and be shaped and comprise the 2nd molding die significant points profile of the optic disc base board between the no information area.Shown in Figure 3, for by this example molding optical disc substrates device, the comprising optic disc base board between the information area, and fit and comprise near the amplification profile of optic disc base board cd centre opening between the no information area of formed thereby.
CD 40 as shown in Figure 3, be will comprise between the information area 41 optic disc base board 42 (hereinafter referred to as " data disc substrate 42 ") and comprise between the no information area 43 optic disc base board 44 (hereinafter referred to as " emulation optic disc base board 44 "), mutually postpone being fitted with adhesive agent 45 again forms.Data disc substrate 42 is the 1st molding die 61 formed therebies by molding optical disc substrates device 9 shown in Figure 2.Between the information area of data disc substrate 42 41, though the concavo-convex hole (pit) of genus information time micron (submicron), shaping duplicated by the molding press 62 of the 1st molding die 61.Near data disc substrate 42 central openings 46 annular groove 47 is by being equipped on mirror board 63 surfaces of stating the 1st molding die 61 before shown in Figure 2, being formed with interior all pressing mold pressing plates 64 blade of a sword portions 65 that push down molding press 62.And; aforementioned in all pressing mold pressing plates 64 blade of a sword portion 65 peripheral ends 66, and molding press 62 between the gap; then by pouring into molten resin; and comprising between the information area on 41 the data disc substrate 42; form the outside lateral sulcus end 48 of radius of annular groove 47; and and the information area between 41 faces be on the direction of orthogonal, form burr 49.
Emulation optic disc base board 44 is the 2nd molding die 12 formed therebies by molding optical disc substrates device 9 shown in Figure 2.Can learn describe the 2nd molding die 12 of shaping emulation optic disc base board 44 in detail by Fig. 1 after that the 2nd molding die 12 is made of fixed mould 10 and flexible mould 11.10 of fixed moulds are installed in the fixed form 13 on the emission forming machine fixed disk that is not disclosed in drawing by seeing through thermal insulation board 14, and on thermal insulation board 14 reverse side of fixed form 13, see through fixedly inner panel 15 to form the mirror board 16 of bonding emulation optic disc base board 44 inner faces 54, fixed form 13, be intercalated in fixedly female cutter 19 of inner panel 15 and mirror board 16 centre bores, be intercalated in the sprue bush (sprue bush) 18 of female cutter 19 and fixed form 13 centre bores, contact sprue bush 18 end faces and be bonding on the location plate 17 of fixed form 13 centre bores, the fixedly peripheral ring 20 that is intercalated in fixedly inner panel 15 and mirror board 16 peripheral end faces and is bonding on fixed form 13 constitutes.
Flexible mould 11 is by collapsible form 23,43 the mirror board 22 between the no information area of formation seeing through emulation optic disc base board 44 that movable inner panel 21 binded on fixed mould 10 sides of collapsible form 23, be bonding on mirror board 22 peripheral ends and form the peripheral ring 25 of emulation optic disc base board 44 outer circumference end, be intercalated in the cylindrical element sleeve pipe (sleeve) 35 of movable inner panel 21 and mirror board 22 centre bores, give prominence to the injector (ejector) 29 of emulation optic disc base board 44 towards endwisely slipping at sleeve pipe 35 endoporus, and be intercalated in female in axial sliding cutter 19 fastenings of injector 29 endoporus and court and the public cutter 30 of the central opening 50 of on emulation optic disc base board 44, boring a hole, because of being intercalated in public cutter 30 endoporus and giving prominence to the outstanding pin 31 that separates cast gate (sprue) towards central opening 50 in axial sliding, and be intercalated in movable inner panel 21 and mirror board 22 peripheral end faces and the movable peripheral ring 24 that is bonding on collapsible form 23 constitutes.Fixed mould 10 and flexible mould 11 are to contact on fixing peripheral ring 20 and movable peripheral ring 24, again by closing film with formation groove 32.
Mirror board 22 groove surfaces 26 of this example are not installed the emulation molding press, and the groove surface 26 of mirror board 22 is then inboard and when forming member sleeve pipe 35 groove surfaces 37 in abutting connection with aforementioned mirror board 22, also constitutes the groove surface that shaping does not have 43 sides between the information area.Flexible mould 11 on the 2nd molding die 12 of shaping emulation optic disc base board 44 compared with the 1st molding die 61 of shaping data disc substrate 42, because of not possessing molding press 62, interior all pressing mold pressing plates 64, and belongs to low-cost mould.
Mirror board 22 on this example is to adopt stainless steel to make.And on the groove surface 26 of aforementioned mirror board 22, coating Vickers (Vickers) hardness Hv1000 and even Hv1400 are arranged then) TiN (titanium nitride), the thickness of formation is 1 μ m and even 10 μ m.The TiN that mirror board 22 groove surfaces 26 are coated with is after forming coated film, and use diamond cream etc. are to carry out finished machined.About the finished machined of this TiN coating, also available aforementioned method is in addition carried out physical surface treatment, but the surface smoothness after the finished machined (10 average boldness) is 0.05 μ mRz and even 0.4 μ mRz.Moreover, TiN and DLC (class diamond carbon mould) in comparison because coefficient of friction and surface smoothness are bigger, therefore guarantee aspect the above-mentioned surface smoothness comparatively favourable.In addition, the material that is coated with on mirror board 22 groove surfaces 26 except TiN, also can be coated with titanium nitrogen compound, SiN, Si such as TiCN, TiCRN, TiALN 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, can also be coated with DLC (class diamond carbon mould).About above-mentioned coating aspect, thickness then is about 1 μ m and even 10 μ m.In addition, also plated metal, fluororesin (PTFE and PFA) thickness such as WCC (tungsten carbide coating), hard chromium can be coated with into the thick of 0.03mm and even 1.00mm.Moreover aforementioned coating material also can be coated with several layers of diverse coating material.Preferably can be by coating, allow groove surface 26 surface smoothnesses of mirror board 22 be that the mode of 0.05 μ mRz and even 0.4 μ mRz is processed.In addition, by the mirror board groove surface that aforementioned stainless steel constituted, also can see through methods such as sanding machine (sand blast), discharge processing, directly to carry out asperities processing.
As shown in Figure 1, on the 2nd molding die 12, be intercalated in the sleeve pipe 35 of mirror board 22 centre bores, belong to the different cylindrical element of multistage caliber, the section of being provided with portion between maximum diameter portion and the centre footpath portion.The maximum diameter portion of sleeve pipe 35 then is intercalated in collapsible form 23, and centre footpath portion then is intercalated in mirror board 22 endoporus 38.Between sleeve pipe 35 minor diameter parts and 22 sections shape endoporus 38 of mirror board, the air that then is provided with ring-type blows out ditch 36, and air blows out 36 in ditch and be opening on groove 32.During shaping, the minor diameter part of sleeve pipe 35 and the air between the mirror board 22 blow out on the ditch 36, then pour into molten resin, and 43 faces are on the direction of orthogonal between the no information area, then form burr 53.
As shown in Figure 1 and Figure 2, on the minor diameter part groove surface 37 of aforementioned sleeve pipe 35, be provided with towards the outstanding ring-shaped protrusion 33 of groove 32.33 of ring-shaped protrusions are near emulation optic disc base board 44 central openings 50, and annular groove 51 is shaped.The section shape of ring-shaped protrusion 33 then is trapezoidal and semicircle, highly is that 0.10mm and even 0.40mm, bottom width are 1.00mm and even 5.00mm.In addition, on emulation optic disc base board 44, ring-shaped protrusion 33 peripheral ends 39 diameters of the set outside lateral sulcus end 52 of shaping annular groove 51 radiuses (diameters of sleeve pipe 35 minor diameter parts) are 22.30mm and even 22.50mm.On the other hand, as shown in Figure 2, the diameter of blade of a sword portion 65 peripheral ends 66 that formed on interior all pressing mold pressing plates 64 of the 1st molding die 61 of shaping data disc substrate 42 is 22.10mm and even 22.40mm.And peripheral end 39 positions (radius R 1) on the aforementioned ring-shaped protrusion 33 are set in aforementioned on all pressing mold pressing plates 64, than blade of a sword portion 65 peripheral ends, 66 positions (radius R 2), towards the 0.05mm and even the 0.20mm position of radial outside.Its result is, on data disc substrate 42 during overlapping aforementioned emulation optic disc base board 44, the burr 53 of emulation optic disc base board 44 must not be overlapped in the same position of data disc substrate 42 burr 49.Moreover, with ring-shaped protrusion 33 peripheral ends 39 diameters, dwindling into than the aforementioned blade of a sword little 0.10mm of 65 peripheral ends, 66 diameters of portion and even 0.40mm, ditch end 48,52 and burr 49,53 can be formed at radially different positions each other.In addition, about sleeve pipe groove surface and fixed mould mirror board groove surface, the groove surface that also can be same as aforementioned flexible mould mirror board equally is coated with.
Next, will the processing procedure of the CD 40 of applying data disc substrate 42, emulation optic disc base board 44 shaping projects, shaping data disc substrate 42, emulation optic disc base board 44 be described according to this example molding optical disc substrates device 9.Be seeing through the 2nd molding die 12 during explanation, and can continue to use in the shaping of data disc substrate 42 based on shaping emulation optic disc base board 44.At first, allow the ejecting device of the emission forming machine that is not disclosed in drawing, contact the 2nd molding die 12 sprue bush 18, allow molten resin inject to groove 32 again by sprue bush 18 inside.Allow be concentric circles towards the radioactive ray direction in the groove 32 and flow, be filled in the molten resin of groove 32, then in cooling, solidification process, by public cutter 30 and female cutter 19 perforation central openings 50, to be shaped emulation optic disc base board 44.
Thereafter, be fixed mould 10 of flexible mould 11 is isolated, and pneumatics is supplied to air to blow out ditch 36 again.Blow out the pneumatics that ditch 36 blows to groove 32 from air, then ring-shaped protrusion 33 is arranged because of side direction in groove 32 radioactive ray, therefore the air impedance is bigger, according to the result of radioactive ray lateral direction through flowing strongly, can be by coating emulation optic disc base board 44, with lighter and carry out demoulding from asperities processing mirror board 22 groove surfaces 26 rapidly.The emulation optic disc base board 44 that is shaped then is moved to the aluminium-vapour deposition device, and 43 are carried out aluminium-vapour deposition between the no information area.And in shaping emulation optic disc base board 44, also by the 1st molding die 61, shaping data disc substrate 42 on 41, then carries out aluminium-vapour deposition between data disc substrate 42 informations area equally.
Data disc substrate 42 and emulation optic disc base board 44 respectively are transported to laminating apparatus, then be coated with adhesive agent 45 on 41 between the information area of data disc substrate 42 after, overlapping again emulation optic disc base board 44, again through rotation with the aforementioned adhesive agent 45 of extension.At this moment, data disc substrate 42 and emulation optic disc base board 44, then because of burr 49,53 positions are not positioned on the same position, so the interval of data disc substrate 42 and emulation optic disc base board 44, can't overshoot.In addition, also bright few the generation because of burr 49,53 break flour that taken place etc. that conflicts each other.45 of adhesive agents are crossed the part of burr 49,53, and do not enter near the central opening 46,50 the annular groove 47,51.In addition, can't gassing on the adhesive agent 45, therefore can form the CD 40 of outward appearance grace.
The utility model can be implemented on aspects such as various changes, correction, improvement based on those skilled in the art's knowledge.In addition, this enforcement aspect all can be included in scope of the present utility model as long as do not break away from the utility model purport.For example: also can be installed on the molding optical disc substrates device at fixed mould, the 2nd molding die of shaping emulation optic disc base board, and the no information area that is shaped between and comprise mirror board, and the sleeve pipe of formation ring-shaped protrusion of groove surface.In addition, about on the molding optical disc substrates device, the 1st molding die of shaping data disc substrate also can be installed on fixed mould with molding press.In addition, also can dwindle the diameter of flexible mould and fixed mould mirror board centre bore, on the inside part that is shaped on the mirror board surface between the no information area, also can as aforementioned, form ring-shaped protrusion.At this moment, do not have between the information area between the face at ring-shaped protrusion and shaping mirror board, the clearancen air-blowing that also can be shaped goes out ditch.Moreover, also can be with on the molding optical disc substrates device, the 1st molding die of shaping data disc substrate, and the 2nd molding die of shaping emulation optic disc base board are installed on the identical emission forming machine.At this moment, the 1st molding die and the 2nd molding die also can be one of the forming with mould or also can be separately independently mould.

Claims (3)

1. molding optical disc substrates device, comprise the optic disc base board that to comprise in order to be shaped between the information area, and the no information area in applying aforementioned information interval between the building mortion of optic disc base board, it is characterized in that:
Molding press with shaping aforementioned information interval; support interior all pressing mold pressing plates of perimembranous in the aforementioned molding press; shaping comprises the 1st molding die of the optic disc base board between the information area; mirror board between the aforementioned no information area is shaped; at the inside part and the ring-shaped protrusion that is arranged on aforementioned mirror board inner member that are shaped on the aforementioned mirror board between the no information area; be shaped and to comprise the 2nd molding die of the optic disc base board between the no information area; and the interior all pressing mold pressing plate blades of a sword portion peripheral end position on these the 1st molding dies, different each other diametrically each other with the ring-shaped protrusion peripheral end position on the 2nd molding die.
2. molding optical disc substrates device as claimed in claim 1 is characterized in that: the ring-shaped protrusion peripheral end position on the 2nd molding die is positioned at the radial outside of all pressing mold pressing plate blades of a sword portion peripheral end position on the 1st molding die.
3. molding optical disc substrates device as claimed in claim 1, it is characterized in that: on the mirror board surface that is shaped on the 2nd molding die between the no information area, be coated with in DLC, nitrogen compound, carbon compound and the tungsten carbide one or more, or directly carry out asperities processing on the mirror board surface.
CNU2004201203772U 2004-12-08 2004-12-20 Optical disk substrate forming device Expired - Fee Related CN2758053Y (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004354913 2004-12-08
JP2004354913A JP2006164406A (en) 2004-12-08 2004-12-08 Apparatus for molding disk substrate

Publications (1)

Publication Number Publication Date
CN2758053Y true CN2758053Y (en) 2006-02-15

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Application Number Title Priority Date Filing Date
CNU2004201203772U Expired - Fee Related CN2758053Y (en) 2004-12-08 2004-12-20 Optical disk substrate forming device

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JP (1) JP2006164406A (en)
CN (1) CN2758053Y (en)
TW (1) TWM268173U (en)

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Publication number Publication date
JP2006164406A (en) 2006-06-22
TWM268173U (en) 2005-06-21

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20060215

Termination date: 20101220