TWI246959B - Die assembly for molding optical disc substrates - Google Patents
Die assembly for molding optical disc substrates Download PDFInfo
- Publication number
- TWI246959B TWI246959B TW093141033A TW93141033A TWI246959B TW I246959 B TWI246959 B TW I246959B TW 093141033 A TW093141033 A TW 093141033A TW 93141033 A TW93141033 A TW 93141033A TW I246959 B TWI246959 B TW I246959B
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- Taiwan
- Prior art keywords
- molding machine
- outer peripheral
- fixed
- mold
- optical disc
- Prior art date
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 38
- 239000000758 substrate Substances 0.000 title claims abstract description 32
- 230000003287 optical effect Effects 0.000 title abstract description 25
- 230000001154 acute effect Effects 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 67
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 208000035224 Ring chromosome 12 syndrome Diseases 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 235000021438 curry Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H35/00—Baths for specific parts of the body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
- B29D17/005—Producing optically read record carriers, e.g. optical discs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H33/00—Bathing devices for special therapeutic or hygienic purposes
- A61H33/0087—Therapeutic baths with agitated or circulated water
- A61H33/0091—Water agitated by means moving in the bath, i.e. without water connections to an outside pump circuit
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H33/00—Bathing devices for special therapeutic or hygienic purposes
- A61H33/0095—Arrangements for varying the temperature of the liquid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H35/00—Baths for specific parts of the body
- A61H35/006—Baths for specific parts of the body for the feet
-
- 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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
-
- 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
- B29C45/2608—Mould seals
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/02—Characteristics of apparatus not provided for in the preceding codes heated or cooled
- A61H2201/0221—Mechanism for heating or cooling
- A61H2201/0228—Mechanism for heating or cooling heated by an electric resistance element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/10—Characteristics of apparatus not provided for in the preceding codes with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy
- A61H2201/105—Characteristics of apparatus not provided for in the preceding codes with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy with means for delivering media, e.g. drugs or cosmetics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5058—Sensors or detectors
- A61H2201/5082—Temperature sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2203/00—Additional characteristics concerning the patient
- A61H2203/04—Position of the patient
- A61H2203/0425—Sitting on the buttocks
-
- 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
- B29C2045/2648—Outer peripheral ring constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
- B29L2017/005—CD''s, DVD''s
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/81—Sound record
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Public Health (AREA)
- Rehabilitation Therapy (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
1246959 九、發明說明: 【發明所屬之技術領域】 a本發明,是有關洲以絲光縣板賴具裝置,特別 疋^關於具備了被配置於鏡面板之壓模機外周緣部的壓模機 固定部、及具備規定成形品膜腔外周端部,而擁有内周部 外周壓模機支撐座。 【先前技術】 如圖5、如圖6為圖5符號6的部分放大圖,是屬於用以 成形昔知光碟基板Mp的模具裝置1〇〇圖例。此模具裝置1〇〇 是由固定模11與活動模200所構成。固定模u是由透過隔 …、板14而被女裝於未出具在圖式射出成形機固定盤上的固 定模板13、及透過固定内板15貼合於固定模板13與隔熱板 14安裝面相反面的固定鏡面板16、固定模板13、固定内板 15、及被嵌插於固定鏡面板ΐβ中心開口的閘門插件μ、洗口 套18及定位板π、及被嵌插固定内板15及固定鏡面板16 外周端面,而被貼合於固定模板13的固定外周環12所構成。 活動模200是由活動模板22、在活動模板22與固定型 11側面上透過活動内板23所黏合的活動鏡面板24、被配設 於和活動鏡面板24與固定鏡面板16呈對置的壓模機26、挾 持壓模機26外周緣部,以受到活動鏡面板24所支撐的外周 壓模機支撐座250、挾持被遊插於活動内板23及活動鏡面板 24中心開口的壓模機26内周端部以受到活動鏡面板24所支 撐的内周壓模機支撐座28、引導内周壓模機支撐座28内孔而 被黏合於活動模板22的固定套管29、被嵌插於固定套管29 1246959 内,而朝軸向自由滑動的翁器3G、減插於噴射器
而朝軸向自由滑動的公刀31、被嵌插於公刀内孔而朝輛向L 自由滑動的突出插梢32、被嵌插於活動内板23及活動: 24外周端面而被貼合於活動模板22的活動外周環& 成。活動模200則藉由固定外周環12與活動外周環 觸,而與上述固定模U合模,以構成模具裝置 成形品膜腔270。 成出 、如圖6之放大剖面圖所示,外周壓模機支撐座25〇,具有 用以支撐讀鏡面板24上所配置之麵機26外周緣部· 的壓模機固定部_、及規定前述成形品膜腔27()外周端部 270E的内周部33〇。而且,此内周部擁有與固定鏡面板 16凸部40對置,而自凹部41朝剖面直線狀延長的面纖。 再者,此内周面330S上則有如專利文獻i所示之高度與幅有 0/〜〇.5mm的較小段差部。利用具有這種構成的模具1〇〇成 幵/口口臈腔270成形光碟基板jfp時,會在凸部與凹部41之 間約5〜ΙΟ/zm間隙D處產生熔融樹脂侵入的毛邊祁。此毛邊 36除了會在光碟基板Mp成形後的工程上造成脱落、汚染的原 口之外’也會在印刷藉由光碟壓模機2β所複印訊號面之相反 面的碩取面時發生障礙,並影響到拿起光碟時的觸感。要解 决這個問題,只要縮小凸部4〇與凹部41之間約5〜1〇#Μ的 間隙D、或縮小凸部4〇與凹部41傾斜角度c即可,但如此一 來凸部40與凹部41便容易因楔合而引發其他問題。 此外,如圖7所示,當製造在此光碟基板恥、恥上黏貼 1246959 相同訊號面的辆MpG時,會發生接合兩基板Mp、Mp的黏著 劑或UV漆液G,自貼合面滴落而有損外觀的問題。相對之下, 專利文獻2上财設置用以解決關題的段差部,而呈現出 依據專利文獻1所公開之模具裝置成形辆基板的貼合方 法。但基於這種段差部的方法,並無法完全防止uv漆液g的 滴落。 專利文獻1特開平8-132488號公報(第1-3頁,第P2 圖) 專利文獻2特開平8—315430號公報(第η頁,第1 圖及第3-5圖) 【發明内容】 一、 所欲解決之技術問題: 本發明疋㈣解決上述問題,其目的在於提供除了在成 形光碟基板訊號面的相反讀取面上不發生垂直毛邊之外,還 可順利相互貼合訊號面之光碟基板模具裝置。 二、 解決問題之技術手段·· 換言之,如本發明申請專利範圍第丨項所述一種光碟基 板成形用模具裝置,包括支撐被§&置於鏡面板之壓模機外周 緣部的壓模機HI定部、及具備規定成形品膜腔外周端部,而 擁有内周部之外周壓模機支撐座,其特_於··前述外周壓 =機支撐座的關部上,設有朝前述顧機固料,突出到 前述成形品膜腔内侧,以形成表面平滑的剖面銳角突出部。 如本發明申清專利範圍第2項,是附屬於申請專利範圍 1246959 成軸_置,_在於:突出部的剖 X,、、、〇〜6〇,自突出部之膜腔最外周的突出量為 〇」2〜1職,讓^周部表面平滑的形成曲率半徑為G. 1〜0. 8咖。 二、對照先如技術之功效··
=於本U中μ專利細第丨項是—種支撐被配置於鏡面 板之壓模機外周緣部的壓模機固定部、及具備規定成形品膜腔 外周端部、而擁有内周部之外周壓模機支樓座的光碟基板成形 用模具裝置’在前料順模機支碰_周部上,則設有朝 刖述壓板機固疋部,突出到前述成形品膜腔内侧,以形成表面 平滑的剖硫角突_,耻除了在成形光魏板訊號面的相 反頃取面上不發結直毛邊之外,__目合訊號面。
如本發明申#專利細第2項,是以突出部的剖面鋭角角 度為30〜6〇。,自突出部之膜腔最外周的突出量為0. 2〜1mm, 讓内周《卩表面平⑺的形成曲率半徑為ο」〜g·咖為範圍,而符 &光碟規格’除了在成形光碟基板訊號面的減讀取面上不發 生垂直毛邊之外,射·相互齡訊號面。 【實施方式】 以下將基於圖面詳細說明本發明實施形態。圖丨表示本 發明之光碟基板成職模具裝置實補之—的重要部位剖面 圖。圖2表示圖1符號2的部分放大剖面圖。圖3表示圖2 所示之外周麵機域麵要部彳彡狀綱目。圖4表示 貼合藉由本發賴具裝置所成形之辆基板的光碟重要部位 剖面圖。 8 1246959 如圖1所示,本發明模具裝置10是由固定模u與活動 模20所構成。固定模u則同於前述昔知構造,是由透過隔 熱板14而被安裝於未出具在圖式射出成形機之固定盤的固定 模板13、在固定模板13隔熱板14安裝面的相反面上,透過 固疋内板15做黏合的固定鏡面板16、被嵌插於固定模板13、 固疋内板15及固定鏡面板16中心開口的閘門插件丨9、洗口 套18、疋位板π、被嵌插於固定内板15及固定鏡面板π外 周端面的固定模板13上所黏合的固定外周環12所構成。 活動模20是由活動模板22、在活動模板22固定型11 侧面上,透過活動内板23所貼合的活動鏡面板24、被配設於 和活動鏡面板24固定鏡面板16呈對置的壓模機26、挾持壓 模機26外周緣部以受到活動鏡面板24所支撐的外周壓模機 支撐座25、挾持被遊插於活動内板23及活動鏡面板24中心 開口的壓模機26内周端部以受到活動鏡面板24所支撐的内 周壓模機支撐座28、引導内周壓模機支撐座28内孔而被貼合 於活動模板22的固定套管29、被嵌插於固定套管29内孔而 朝軸向自由滑動的噴射器30、被嵌插於喷射器3〇内孔而朝軸 向自由滑動的公刀31、被嵌插於公刀31内孔而朝軸向自由滑 動的突出插梢32、被嵌插於活動内板23及活動鏡面板24外 周端面而被貼合於活動模板22的活動外周環21所構成。活 動模20則藉由固定外周環12與活動外周環21的接觸,而與 上述固定模11合模以構賴具裝置10、形成出成形品膜腔 1246959 如圖1及圖2所示,成形品膜腔27是藉由麵機26表 面、固定鏡面板16的圓形表面39、外周壓模機支樓座25的 内周Ί閘門插件19、洗口套18、關壓模機支撐座28、 固疋套$ 29、嘴射器3〇、公刀31及突出插梢%之各端面的 設置所形成。而且,未出具在圖式之射出裝置的洗口套18, 可讓溶融樹脂朝向臈腔27射出與填充,再經由冷卻固化後即 成形出光碟基板Μ。 藉由光碟基板Μ之壓模機26所成形的部分,則形成出由 麵機26戶斤定範圍所刻設之微小無數突起所複印的訊號面 37。此外,藉由光碟基_之蚊鏡面板16的圓形表面抑、 與閘門插件19端面所成形的部分,則形成出與訊號面37呈 相反面的平滑讀取面38。該讀取面38的-部分或全面實施有 印刷等。再者是透過外周壓模機支撐座25内周部犯形成出 成形品膜腔27的外周端部,進而成形出光碟基糾的外周端 面0 如圖2放大剖面圖所示,外周壓模機支撐座沾屬於擁有 壓模機固定部34與内周部33的圓環狀構件。壓模_定# 34屬圓環狀面,在壓模機26外周緣部26Ε表面上接觸後,則 讓活動鏡面板24表面上所配置的壓模機26,在活動鏡面板 24上與内周壓模機支撐座28做互動支撐。如前述所言見内= 部33除了規定成形品膜腔27外侧端部27Ε之外,…θ丄 還具有將 该内周部33朝向固定模11側延長而形成的凹部a。此凹部 41在合模後,則在固定鏡面板16成形品膜腔27側,與被% 1246959 部40 ’以距離5〜1〇_的間隙d做對置。凹部 1·,對於岐鏡面板16圓形表_ ;:',^__27外_斜。光碟基板 Γ轉完全合模前,換言之就是讓固定_ :動外周衣21接觸前’會將溶融樹脂射出到膜腔^後 2活動模2G接近固賴11,以執行所謂_壓縮成形。
,’角度C越大間隙D也就越大。換言之,將航c進入 =40的凹部41時,在不發生楔合的範圍裡放大,且壓縮 =樹脂時,姐蝴旨難以侵人間隔D的麵内縮小值 叹疋為2〜8。。再者’凸部40與凹部41之任一方與雙方皆 形成出段狀。 立從圖3的說明圖愤可得知,内周部抑屬於包含了自凹 邛41而呈剖面直線狀延長的面33S,往膜腔27内侧突出的突 出部35表面35S的表面部分。突出部35被設置於内周部兕 的壓模機固定部34側,形成㈣向該麵細定部34往成 也口口臈腔27内側突出,而呈表面平滑的剖面銳角。如圖3所籲 J,内周部33剖面形狀,是以曲率半徑1^而自角度6的銳肖 销形成的突出部35表面舰、與凹部41延長表面33S呈平 滑連接。換言之,内周部33表面是從固定鏡面板16的圓形 表面39端部上呈對置的位置H,到突出冑%先端35E為止, 化成出無凹凸的平滑曲面。再者,内周部33與凹部41表面 上所實施_鉻,職升了_樹脂的流動性、與光碟基板Μ 的脫核性。再者’在内周部33固定鏡面板16的圓形表面39 11 1246959 端部上呈對置的位置Η,則為成形品膜腔27的最外周,在直 徑為DVD等光碟Mo的外徑尺寸所規定的12〇± 〇. 3mm上,則 有設定附加冷卻熔融職時的收縮尺寸。而且,光碟M〇若屬 於DVD ’那麼也在光碟基板M厚度〇. 6麵,膜腔27厚度〇. _ 上,有設定附加冷卻熔融樹脂時的收縮尺寸。屬於突出部35 的先端35E與位置Η之間壓模機26表面方向距離的突出量 A,若處於最大值時,會在訊號面37上形成訊號凹痕,且在 規格上财最外制祕位置,即使是最小值,也設定為可 發揮突出部35之本發果的範圍。正如本發 之規定,辦35咖峨,勤細==
了60 ,韵述突出量A為〇· 2〜1mm。此外,前述曲率半徑R 最好在0· 1〜〇· 8麵範圍内。 如圖2及圖6所示,藉由上述模具1〇成形光碟基板M時, 間隔D尺寸即使同於昔知模具1〇〇,溶融樹脂也不會侵入間隔 D的部分,也不發生毛邊。這是因壓縮熔化樹脂時,流動的熔 化樹脂會在内周部33上所形成的突出部35表面娜上受到 有效的冷4卩且糊引導,雜性下滑的熔融細旨,盡早到達 位置H。 如圖4所示,這般成形光碟基板Μ、Μ,在這些訊號面37 上藉由真空蒸鍍等形成反麵後,會讓彼此的面經過黏著劑 或UV漆液G而形成貼合_ Mg。鱗,即使祕基板Μ、Μ 被水平配置無合,黏著酿υν漆液G也不會自前述突出 部35所形成的剖面v字狀溝而雜外側。其後,當一端光碟 12 1246959 基板Μ沒有訊號時,會在該讀取面38上實施印刷等,但此時 因碩取面38外周端讀取面38上並無垂直毛邊,因此不為印 刷工程帶來障礙。 本么明亦包含基於熟習該項技術者所做之各種變更、修 正改良專形悲的實施例。此外,施加前述變更的實施態樣, 只要不脫離本發明主旨即應納入本發明範圍。舉例來說,本 發明實施形態上的模具,是在活動型模具上設置壓模機,但 也可在固定型模具上設置壓模機。 【圖式簡單說明】 圖1表示實施例之重要部位剖面圖。 圖2表示圖1符號2的部分放大剖面圖。 圖3表相2卿之外歷模機支碰重要雜的形狀說明圖。 圖4表示齡触本發賴《置職狀賴紐的光碟重 要部位剖面圖。 圖5昔知光碟基板成型倾具裝的重要雜剖面圖。 圖6表相5符號6的部分放大剖面圖。 圖7表示貼合藉由昔知模具農置所成形之光碟基板的光碟重 要部位剖面圖。 【主要元件符號說明】 10模具裝置 16固定鏡面板 24活動鏡面板 25外周壓模機支撐座 1246959 26 壓模機 27 膜腔 33 内周部 34 壓模機固定部 35 突出部 Μ 光碟基板 Mo 光碟 A 突出量 B 角度 R 曲率半徑 D 間隙
Claims (1)
1246959 十、申請專利範圍: 1· 一種光碟基板成形用模具裝置,包括支撐被配置於鏡 面板之壓模機外周緣部的壓模機固定部、及具備規定成形品 膜腔外周端部,而擁有内周部之外周壓模機支擇座,並特徵 在於:前料職模機支撐座_周部上,設有朝前述壓模 機固定部,突出到前述成形品膜腔内側, 剖面銳角突出部。 ㈣ 置第1項所賴柄基板成形用模具裝 膜腔最外周度為3G〜6G°,自突出部之 曲率半彳嫩^部表面平滑的形成
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AU2001277907A1 (en) | 2000-07-17 | 2002-01-30 | Board Of Regents, The University Of Texas System | Method and system of automatic fluid dispensing for imprint lithography processes |
US20080160129A1 (en) | 2006-05-11 | 2008-07-03 | Molecular Imprints, Inc. | Template Having a Varying Thickness to Facilitate Expelling a Gas Positioned Between a Substrate and the Template |
US20060177535A1 (en) | 2005-02-04 | 2006-08-10 | Molecular Imprints, Inc. | Imprint lithography template to facilitate control of liquid movement |
JP4769654B2 (ja) * | 2006-07-27 | 2011-09-07 | 株式会社名機製作所 | ブルーレイディスクの製造方法 |
JP2008200876A (ja) * | 2007-02-16 | 2008-09-04 | Mitsubishi Kagaku Media Co Ltd | ディスク成形用金型、金型用スペーサ、ディスク基板及びその成形方法 |
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US6495235B2 (en) * | 2000-03-24 | 2002-12-17 | Matsushita Electric Industrial Co., Ltd. | Optical disk, substrate of the same, and mold for forming the substrate |
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CN1669768A (zh) | 2005-09-21 |
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TW200531818A (en) | 2005-10-01 |
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