1301792 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種關於，減少發生於光碟基板外圍端的毛 邊、並防止嵌合部受損的光碟基板成形模具裝置及該鏡面盤。 【先前技術】 光碟塑膠基板成形用模具裝置具備了形成模腔的固定模 具、活動模具、配置於活動模具的壓模機、將壓模機安裝於活 動模具對置面的外圍壓環，當閉模時讓形成於外圍壓環内圍與 固定模具對置面的鏡面外圍相互鑽入以呈對置的嵌合面，兩嵌 合面之間則形成出連通模腔内外的間隙，讓兩嵌合面的模腔部 分幾乎與中心轴線呈平行，反模腔的部分則以所定角度對中心 轴線傾斜（例如，參閱專利文獻1);接下來，以小於模腔部分 間隙的間隔，形成兩嵌合面反模腔部分的間隙，即使外圍壓環 與兩模之間的同轴度有偏差，在閉模時嵌合面的反模腔部分將 比模腔部分優先接觸，因此在不讓幾乎與中心軸線呈平行的嵌 合面模腔部分相互接觸的情況下，得以維持該間隙；也因此可 阻止射出填充於模腔内的樹脂材料從間隙漏出毛邊的情況 下，成形出光碟塑膠基板；但兩嵌合面反模腔部分的間隙，是 以小於模腔部分間隙的間隔所形成，由於該部分會在成形時頻 繁接觸，因此會因啃咬等因素而受損。 此外，其他光碟塑膠基板成形用模具裝置屬於具備固定側 型盤、配置於該固定側型盤鏡面的壓模機、及與前述固定側型 盤呈對置的活動鏡面盤鏡面外圍部，移往中心軸向以支承前述 1301792 壓模機外圍部，並形成模腔端面模腔環的光碟基板成形模具裝 置’在嵌合前述模腔環與前述活動鏡面盤侧面之間設置滾珠護 圈（ball retainer)，以維持兩者間的間隙(ciearance)，並順 利進行兩者間的活動動作（例如，參閱專利文獻2);但前述滾 珠護圈是由滚珠主體、及支承滾珠的構件所構成，即使只有部 分滾珠破損，也需更換整個滾珠護圈；此外，滾珠護圈主體不 易更換。 專利文獻1 :特開2001 —138336號公報 專利文獻2 :特開2004—74727號公報（段落〇〇2〇、圖2 及圖5) 【發明内容】 所欲解決的技術問題： 本發明用於解決上述問題，且除了可透過簡易的構成，還 有效成形出扣合部得以保蕊的良質光碟基板，並可輕鬆維護 檢查的光碟基板成形用模具裝置及該鏡面盤。 解決問題的技術手段： 換言之，申請專利範圍第丨項是在具備第1鏡面盤、配 置於該第1鏡面盤鏡面的壓模機、讓該壓模機外圍部被支承 於前述第1鏡面盤鏡面外圍部的外圍支承環、讓該外圍支承 環内圍面嵌入於，將前述壓模機表面視為底面而形成的凹 部，而具備形成模腔凸起部第2鏡面盤的光碟基板成形模具 裝置上’將滾珠軸承設置於前述凹部與前述凸起部嵌合部。 1301792 申請專利範圍第2項是有關於，在申請專利範圍第1項 中’前述滾珠軸承在將前述第2鏡面盤凸起部侧面圓周設置 於等分位置的收容溝中，讓中心轴無法朝垂直方向脱出及自 由轉動’且為了讓一部份突出而收容球體後，所構成的光碟 基板成形模具裝置。 申請專利範圍第3項是有關於，具備第1鏡面盤、配置 於該第1鏡面盤鏡面的壓模機、在與前述第丨鏡面盤呈對置 的第2鏡面盤的鏡面外圍部移往中心轴向，以支承前述壓模 機外圍部，並形賴腔端科圍支承獅光碟基板成形模具 裝置上，將嵌合前料圍支承_前述第2鏡面盤凸起部侧 面圓周，設置於等分位置·容溝中，讓巾心軸無法朝垂直 方向脱出及自由轉動，料了讓—部份突出而收容球體以構 成出滚珠軸承之光碟基板成形模具裝置。 申睛專利範圍第4項是有關於，在巾請專利範圍第2或3 項中，前躲容溝為雜，且於前述球制的—侧或兩侧上， 具備了直徑大於_球_可自由裝__構件之光碟基 板成形模具裝置。 申請專利範圍第5項是有關於，在中請專利範圍第2或3 項中，前述球體的硬度低於前述频支承環的硬度之光碟基 板成形模具裝置。 申睛專利_第6項是有關於，在申請專利範圍第2或3 1301792 項中，前述收容溝之前述球體列的兩側附近設有除氣溝之光 碟基板成形模具裝置。 申請專利範圍第7項是有關於，第i鏡面盤、配置於該 第1鏡面盤鏡面的壓模機、讓前述第i鏡面盤鏡面外圍部支 承該壓模機賴部的外圍支承環、讓該外圍支承環内圍面叙 入於’鑛述麵絲面視為底面㈣成凹部，且具備形成 模腔凸起部第2鏡面盤的光碟基板成形模具裝置第2鏡面盤 • 上，在將凸起部側面圓周設置於等分位置的收容溝中，讓中 心轴無法朝垂直方向脱出及自由轉動，且為了讓—部份突出 而收容球體以構成出滾珠軸承之第2鏡面盤。 申请專利範圍第8項是有關於，第丨鏡面盤、配置於該 第1鏡面盤鏡面的壓模機、在與前述第1鏡面盤呈對置的第2 鏡面盤鏡面外_射心軸向移動，以支承料壓模機外圍 部，形成模腔端面相支承環的辆基板成形模具裝置第2 鏡面盤上’㈣第2鏡面盤是將嵌合前述賴支承環的凸起 部侧面M，設置於等分位置容財，讓中心軸無法朝 垂直方向脱出及自由轉動，且為了讓—部份突出而收容球體 以構成出滾珠軸承之第2鏡面盤。 對照先前技術的功效： 申請專利範圍第1 鏡面盤鏡面的屢模機、 項在具備第1鏡㈣、配置於該第1 讓該顧機外_被支承於前述第1 1301792 鏡面盤鏡科_的外圍支承環、讓該外圍支承環内圍面嵌 入於’將則述壓模機表面視為底面而形成的凹部，而具備形 成模腔凸起部第2鏡面盤的光碟基板成形模具裝置上，將滾 珠軸承設置於前述凹部與前述凸起部嵌合部；·可有效成 形出扣合部得以保蕊的良質光碟基板。 申請專利範圍第2項，依射請專利細第丨項中，前 述滾珠軸承在將前述第2鏡面盤凸起部側面圓周設置於等分 位置的收容溝中，讓中心軸無法朝垂直方向脱出及自由轉 動，且為了讓一部份突出而收容球體，因此可簡易且輕易構 成滾珠轴承、及可輕鬆進行維護管理。 申π專利範圍第3項，具備第1鏡面盤、配置於該第1 鏡面盤鏡面義模機、在與前述第丨鏡面盤呈對置的第2鏡 面盤的鏡面外_移往中心軸向，以支承前述壓模機外圍 部，並形成模腔端面外圍支承環的光碟基板成形模具裝置 上，將嵌合前述外圍支承環的前述第2鏡面盤凸起部側面圓 周，設置於等分位置的收容溝中，讓中心轴無法朝垂直方向 脱出及自由轉動’且為了讓一部份突出而收容球體以構成出 滾珠軸承；因此可有效成形出扣合部得以保蕊的良質光碟基 板。 申請專利$1圍第4項，依據中請專利範圍第2或3項中， 前述收容溝為環狀，且於前述球體列的一侧或兩側上，具備 1301792 了直控大赠述球加可自域卸__件，因此可簡易 且輕易構成滚珠軸承、及可輕鬆進行維護管理。 ▲ h專她圍第5項’依射請專利範圍第2、3項中， 前述球體的硬度低於前述外圍支承環的硬度，因此可輕鬆維 護管理光碟基板成形模具裝置。 乂申请專利範圍第6項，依據申請專利範圍第2、3項中， 則述收谷屢之則述球體列的兩侧附近設有除氣溝 ，因此可抑 ^ 制因氣體所引發的成形不良，成形出良質光碟基板。 申明專利㈣第7項，第1鏡面盤、配置於該第i鏡面 盤鏡Φ的難機、讓祕帛丨鏡面錄餅_支承該麵 機外圍α|5的外圍支承環、讓該外圍支承環關喊入於，將 别述壓模齡面視為底面祕成凹部，且具伽成模腔凸起 部第2鏡面盤的光碟基板成形模具裝置第2鏡面盤上，在將 凸起部側面圓周設置於等分位置的收容溝中，讓中心轴無法 • 朝垂直方向脱出及自由轉動，且為了讓-部份突出而收容球 體以構成出滾珠轴承；因此可有效成形出扣合部得以保蕊的 良質光碟基板。 申睛專利範圍第8項，第1鏡面盤、配置於該第丨鏡面 盤鏡面的壓模機、在與前述第1鏡面盤呈對置的第2鏡面盤 鏡面外圍部朝中心軸向移動，以支承前述壓模機外圍部，形 成模腔端面外圍支承環的光碟基板成形模具裝置第2鏡面盤 1301792 上，前述第2鏡面盤是將嵌合前述外圍支承環的凸起部側面 圓周，設置於等分位置的收容溝巾，讓中心減法朝垂直方 向月兑出及自由轉動，且為了讓—部份突出敝容球體以構成 出滾珠轴承’目此可有效成形料合部得以絲的良質光碟 基板。 【實施方式】 以下將基於®©，詳細說明本發_實施賴；圖i是 光碟基板成形模具裝置重要部位縱剖面圖；圖2是圖丨固定 式與活動式扣合赚大剖_ ;圖3是其他辆基板成形模 具裝置扣合部放大剖面圖；圖4是本發明滚珠轴承之圖2 A —A向視圖；圖5是圖4的B—B剖視斷面圖。 圖1所示的光碟基板成形模具裝置1〇，是由固定式模具 20與活動式模具35所構成；固定式20是透過斷熱板12以定 位環11被定位安裝於未揭示在圖示的射出成形機固定盤的模 具14、及透過内板15黏著於模具14，並從外圍部具有突出 凸起部44的鏡面盤（第2鏡面盤）16、及内插於鏡面盤Μ 及内板15中心轴孔的洗口插件17、及内插於繞口插件I?及 模具14中心轴孔的澆口套13、立設於模具14而合模時會合 理接觸活動式35模具25的數個止衝塊19、及立設於模具14 而嵌入活動式35稹具25，以引導合模的數個導桿18。 活動式35具備了透過未揭示在圖式而被安裝於射出成形 11 1301792 機活動盤的内板24、及透過内板24而被黏著模具25的鏡面 盤23、被配置於鏡面盤23表面鏡面的壓模機22、及讓設置 於鏡面盤23外圍部的壓模機22外圍部，支承鏡面盤23鏡面 外圍部的外圍支承環31、及扣合外圍支承環31外圍面而與外 圍支承％ 31互為一體的壓環32、可自由裝卸於壓環32，而 從遊套、扣合模具25中所牵引的支承插銷33，且在鏡面盤 23及内板24中心轴孔中心軸則擁有突出插銷26，再從突出 插銷26依序外插公刀27、突出套筒28、固定套筒29及内圍 壓模機支座30。 活動式35疋由朝向固定式2〇中心軸向接近移動以進行 合模、及如圖2所示將壓模機22表面視為底部，將外圍支承 % 31内圍面43與47，嵌入呈壁面凹部的鏡面盤16凸起部 44，及藉由鏡面盤16鏡面、壓模機22表面、外圍支承環釘 内圍面47等形成出模腔21 ;再者，上述例示是將壓模機&， 配置於第1鏡面盤活動式鏡面盤23的鏡面，但也可如同配置 於固定式纖缝鏡_方式，構如辆基板成形模具裝 置，此時，内圍壓模機支座3〇、外圍支承環31等被設置成固 定式，鏡面盤外圍形狀則調換鏡面盤16與鏡面盤23。 如圖2所示’為了形成模腔21而嵌入於凹部的鏡面盤16 凸起部44的凸起部侧面42，刻設了環狀收容溝4〇 ;收容溝 40附近的凸起部側面42，是在中心軸上呈平行面；如圖5所 12 1301792 不，收容球體41的收容溝40剖面形狀呈現出，開口部寬幅 小於球體41直徑，底面寬幅大於球體41直徑的梯字型；因 此球體41未從收容溝40往中心轴垂直方向脱出；均等分割 (實施例為6等分）收容溝40圓周的位置上，整列容納了數 個（實施例為10個）球體41 ;球體41被容納於收容溝40 時，球體41的一部份會從凸起部侧面突出G1 (實施例為 〇· 1mm)，此外，球體41則在收容溝4〇内部兩侧之間產生間 隙的狀態下被收容，因此球體41可以只在中心轴向持績轉 動；再者，收容溝40為環狀，但在均等分割鏡面盤16凸起 部44凸起部侧面42圓周的位置上，也可朝圓周方向形成出 獨立長溝；而且，收容溝4〇的剖面形狀是以梯型為例，但球 體41只要無法朝中心轴垂直方向脱出且自由轉動，也可做成 矩形，並於開口緣上設置轴環。 如圖4所示，收容溝40内之球體41列的一侧或兩侧上 的區劃構件固定螺釘(Set Screw)49，是以在凸起部侧面42 垂直且從凸起部侧面42埋設的方式被鎖入；固定螺釘49的 直徑大於球體41直徑；因此拔除固定螺釘49時，可透過該 孔以收容及摘出收容溝40的球體41;只將區劃構件設置於球 體41列的一側時，球體41列的另一端則設置固定凸起部， 以阻止球體41移動；從容易裝卸且成本低廉的觀點來看，區 劃構件則以固定螺釘最佳，但也可採用彈性構件等其他具備[Technical Field] The present invention relates to a disc substrate forming die device and a mirror plate which reduce the burrs occurring at the peripheral end of the optical disk substrate and prevent damage of the fitting portion. [Prior Art] A mold for molding a plastic disk substrate includes a mold for forming a cavity, a movable mold, a press machine disposed on the movable mold, and a peripheral pressure ring for attaching the press to the opposing surface of the movable mold. When the mold is formed, the periphery of the mirror surface formed on the inner circumference of the outer pressure ring and the opposite surface of the fixed mold is drilled into each other to form an opposite fitting surface, and a gap between the inner surface and the outer surface of the mold cavity is formed between the two fitting surfaces to allow two inlays. The cavity portion of the face is almost parallel to the central axis, and the portion of the cavity is inclined to the center axis at a predetermined angle (for example, refer to Patent Document 1); next, it is formed at intervals smaller than the gap of the cavity portion. The gap between the two cavities of the opposite mold cavity portion, even if the coaxiality between the peripheral pressure ring and the two molds is deviated, the anti-cavity portion of the mating surface will preferentially contact the cavity portion when the mold is closed, so When the cavities of the mating faces which are almost parallel to the central axis are brought into contact with each other, the gap is maintained; therefore, the resin material filled in the cavity is prevented from leaking from the gap and formed. The disc plastic substrate; however, the gap between the two cavities in the opposite cavity portion is formed at an interval smaller than the gap of the cavity portion, and since the portion is frequently contacted during forming, it may be damaged by factors such as biting. Further, the other optical disk plastic substrate molding die device belongs to a peripheral portion having a fixed side disk, a molding machine disposed on the fixed side disk mirror surface, and a movable mirror disk mirror surface facing the fixed side disk, and is moved to A disc substrate forming mold device that axially supports the outer portion of the 1301792 press molding machine and forms a cavity end face cavity ring. A ball retainer is disposed between the mold cavity ring and the side of the movable mirror disk. In order to maintain the ciarance between the two, the movement between the two is smoothly performed (for example, refer to Patent Document 2); however, the ball retainer is composed of a ball main body and a member that supports the ball, even if Only the part of the ball is broken, the entire ball retainer needs to be replaced; in addition, the ball retainer body is not easy to replace. Patent Document 1: JP-A-2001-138336 Patent Document 2: JP-A-2004-74727 (Paragraph 〇〇2〇, FIG. 2 and FIG. 5) SUMMARY OF INVENTION Technical Problem to be Solved: The present invention is applied to In order to solve the above problems, and in addition to the simple configuration, it is possible to efficiently form a good-quality optical disk substrate in which the fastening portion is secured, and it is possible to easily maintain the optical disk substrate molding die device and the mirror disk. Means for Solving the Problem: In other words, the third aspect of the patent application is to provide a first mirror disk, a molding machine disposed on the mirror surface of the first mirror disk, and a peripheral portion of the molding machine supported by the first mirror disk a peripheral support ring of the peripheral portion of the mirror surface, a concave portion formed by the inner peripheral surface of the peripheral support ring, a concave portion formed by treating the surface of the press machine as a bottom surface, and a disk substrate forming mold for forming a second mirror disk of the cavity convex portion In the apparatus, a ball bearing is provided in the concave portion and the convex portion fitting portion. 1301792 Patent Application No. 2 is related to, in the first application of the patent scope, the aforementioned ball bearing is disposed in a receiving groove in which the side surface of the convex portion of the second mirror disk is disposed at an equal position, so that the central axis cannot be oriented toward The optical disk substrate forming mold device is formed by detaching and freely rotating in the vertical direction and accommodating the spherical body for a part of the protrusion. According to a third aspect of the invention, there is provided a first mirror disk, a molding machine disposed on the mirror surface of the first mirror disk, and a mirror outer peripheral portion of the second mirror disk facing the second mirror disk a central axial direction for supporting the outer peripheral portion of the molding machine, and a cavity end supporting the lion optical disk substrate forming mold device, and the fitting front material surrounding support _ the second mirror surface plate convex portion side circumference is disposed on In the aliquot position and the groove, the towel mandrel cannot be detached and rotated freely in the vertical direction, and the optical disk substrate forming mold device that partially protrudes to accommodate the ball body to form the ball bearing is prepared. The fourth item of the scope of the patent application is related to the fact that in the second or third item of the patent application scope, the front dodging ditch is miscellaneous, and on the side or both sides of the ball system, the diameter is larger than the _ ball _ The optical disc substrate forming mold device of the __ member can be freely installed. The fifth aspect of the patent application is related to the optical disk substrate forming mold device in which the hardness of the spherical body is lower than the hardness of the frequency supporting ring in the second or third aspect of the patent application. In the sixth aspect of the invention, in the second or third aspect of the patent application, the optical disk substrate forming die device is provided with a degassing groove in the vicinity of both sides of the spherical row of the receiving groove. The seventh aspect of the patent application scope relates to an i-th mirror disk, a molding machine disposed on the mirror surface of the first mirror disk, and a peripheral support ring for supporting the peripheral portion of the mirror surface of the i-th mirror disk The inner peripheral surface of the outer peripheral ring is defined as a concave portion on the surface of the surface of the mineral surface, and the second mirror plate of the optical disk substrate forming mold device for forming the second mirror disk of the cavity convex portion is provided. The side of the convex portion is circumferentially disposed in the receiving groove at the equal position, so that the central shaft cannot be detached and rotated freely in the vertical direction, and the spherical body is accommodated to partially form the second mirror disk of the ball bearing. The eighth aspect of the patent application relates to a second mirror disk, a molding machine disposed on the mirror surface of the first mirror disk, and a mirror surface of the second mirror disk facing the first mirror disk. Moving, to support the periphery of the molding machine, the substrate forming mold device forming the cavity end face supporting ring on the second mirror plate '(4) The second mirror plate is a convex portion side M to which the above-mentioned support ring is to be fitted, It is placed in an equal position to allow the central axis to escape and rotate freely in the vertical direction, and to accommodate the ball to form a second mirror disk of the ball bearing. Compared with the efficacy of the prior art: The patented range of the first mirror mirror of the multi-mode machine, the item has the first mirror (four), is placed in the first to allow the outside of the machine _ is supported by the first 1301792 mirror disk mirror _ a peripheral support ring, the peripheral surface of the peripheral support ring being embedded in a recess formed by forming a surface of the press machine as a bottom surface, and a disk substrate forming mold device having a second mirror disk for forming a cavity convex portion The ball bearing is disposed on the concave portion and the convex portion fitting portion; and the good quality optical disk substrate can be effectively formed by the fastening portion. In the second aspect of the patent application, in the above-mentioned patent application, the ball bearing is disposed in a receiving groove in which the side surface of the convex portion of the second mirror face plate is disposed at an equal position, so that the central axis cannot be pulled out in the vertical direction. It is free to rotate, and to accommodate a part of the ball, so that it can be easily and easily formed into a ball bearing and can be easily maintained. According to the third item of the patent application scope, the first mirror disk is disposed on the mirror surface of the first mirror disk, and the mirror surface of the second mirror disk facing the second mirror disk is moved to the center axis. And a disc substrate forming mold device for supporting a peripheral portion of the press molding machine and forming a peripheral end support ring of the cavity end face, and arranging the side circumference of the second mirror face plate convex portion of the peripheral support ring to be equally divided In the receiving groove, the central shaft cannot be detached and rotated freely in the vertical direction, and the ball body is accommodated to form a ball bearing for a part of the protruding groove; therefore, the good-quality optical disk substrate can be effectively formed by the fastening portion. Apply for the fourth item of patent $1, according to the second or third item of the patent scope, the above-mentioned containment groove is ring-shaped, and on one or both sides of the sphere row, there is 1301792 It can be unloaded from the domain, so it can be easily and easily formed into ball bearings and can be easily maintained. ▲ h specializes in her around the fifth item. In the second and third items of the patent scope, the hardness of the sphere is lower than the hardness of the peripheral support ring, so that the optical disc substrate forming mold device can be easily maintained.第In the sixth paragraph of the patent application scope, according to items 2 and 3 of the scope of application for patents, it is stated that there are degassing grooves near the sides of the spheres, so that the formation caused by gas can be suppressed. Poor, forming a good quality disc substrate. Declaring patent (4) item 7, the first mirror disk, the difficulty machine disposed on the ith mirror disk mirror Φ, the secret mirror surface recording cake _ supporting the peripheral support ring of the peripheral machine α|5, let the peripheral support The ring is shouted, and the die-faced surface is regarded as a concave portion of the bottom surface, and the second mirror disk of the optical disk substrate forming mold device having the second mirror disk of the convex cavity of the cavity is formed on the second mirror plate. The side circumference is disposed in the receiving groove of the aliquot position, so that the central shaft cannot be detached and freely rotated in the vertical direction, and the ball body is accommodated in order to allow the - part to protrude, thereby forming the ball bearing; Bao Rui's good quality disc substrate. In the eighth aspect of the invention, the first mirror disk, the molding machine disposed on the mirror surface of the second mirror disk, and the peripheral portion of the mirror surface of the second mirror disk facing the first mirror disk move axially toward the center. a second mirror surface plate 1301792 for supporting a peripheral portion of the molding machine to form a peripheral end support ring of the cavity end face, wherein the second mirror surface disk is provided with a side surface of the convex portion of the peripheral support ring. The receiving ditch in the equal position allows the center subtraction to be exchanged and freely rotated in the vertical direction, and in order to allow the part to protrude into the ball to form a ball bearing, the shape of the material can be effectively formed. Disc substrate. [Embodiment] The following is a detailed description of the main part of the optical disc substrate forming mold device based on ®©; Fig. 2 is a longitudinal sectional view of the important part of the optical disc substrate forming mold device; 3 is an enlarged cross-sectional view of a fastening portion of another substrate forming mold device; FIG. 4 is a view taken along line A-A of FIG. 2 of the ball bearing of the present invention; and FIG. 5 is a cross-sectional view taken along line B-B of FIG. The optical disk substrate forming mold device 1 shown in FIG. 1 is composed of a fixed mold 20 and a movable mold 35. The fixed mold 20 is fixed to the positioning plate 11 through the heat insulating plate 12 and is attached to the unillustrated a mold 14 for injection molding the fixed disk of the molding machine, and a mirror disk (second mirror disk) 16 having a protruding protrusion 44 from the outer peripheral portion and a mirror plate and an inner plate which are adhered to the mold 14 through the inner plate 15 The number of the mouthpiece inserts 17 of the center shaft hole and the sprue bushing 13 inserted into the center hole of the wrap insert I? and the mold 14 are erected in the mold 14 and the number of the movable mold 35 is properly contacted when the mold is closed. The stop blocks 19 are erected on the mold 14 and embedded in the movable 35 cookware 25 to guide the plurality of guide rods 18 that are clamped. The movable type 35 is provided with an inner plate 24 that is attached to the movable plate of the injection molding 11 1301792, and a mirror disk 23 that is adhered to the movable plate 25 through the inner plate 24, and is disposed on the surface of the mirror plate 23 The molding machine 22 and the peripheral portion of the molding machine 22 disposed at the outer periphery of the mirror disk 23, the peripheral support ring 31 supporting the mirror outer periphery of the mirror disk 23, and the peripheral surface of the peripheral support ring 31 are supported and supported by the periphery. 31 mutually integral pressure ring 32, which can be detachably attached to the pressure ring 32, and the support pin 33 pulled from the sleeve and the fastening die 25, and has a central axis of the central axis of the mirror plate 23 and the inner plate 24 The latch 26 is protruded, and the male knife 27, the protruding sleeve 28, the fixed sleeve 29, and the inner peripheral molding machine holder 30 are externally inserted from the protruding latch 26. The movable type 35疋 is moved close to the center of the fixed type 2〇 to perform mold clamping, and the surface of the molding machine 22 is regarded as the bottom as shown in FIG. 2, and the peripheral support % 31 inner peripheral surfaces 43 and 47 are embedded. The convex portion 44 of the mirror disk 16 of the wall recess, and the mirror cavity 21 are formed by the mirror surface of the mirror disk 16, the surface of the molding machine 22, the peripheral support ring inner surface 47, etc. Further, the above description is a molding machine &, disposed on the mirror surface of the first mirror disk movable mirror plate 23, but can also be arranged in a fixed fiber-splitting mirror _ mode, such as a substrate forming mold device, at this time, the inner circumference molding machine support 3 The cymbal, the peripheral support ring 31, and the like are provided in a fixed type, and the outer shape of the mirror disk is changed between the mirror disk 16 and the mirror disk 23. As shown in FIG. 2, 'the annular side surface 42 of the convex portion 44 of the mirror disk 16 which is embedded in the concave portion for forming the cavity 21 is engraved with an annular receiving groove 4〇; the convex portion side 42 near the receiving groove 40 It is a parallel surface on the central axis; as shown in Fig. 5, 12 1301792, the receiving groove 40 of the receiving ball 41 has a cross-sectional shape, the opening width is smaller than the diameter of the spherical body 41, and the bottom surface is wider than the diameter of the spherical body 41. Therefore, the spherical body 41 is not detached from the accommodating groove 40 in the vertical direction of the central axis; in the position of the circumference of the accommodating groove 40 evenly divided (6 aliquots in the embodiment), a plurality of (10 in the embodiment) spheres 41 are accommodated in the entire column; When the 41 is accommodated in the receiving groove 40, a part of the ball 41 protrudes from the side of the convex portion G1 (in the embodiment, 〇·1 mm), and the spherical body 41 creates a gap between the two sides of the receiving groove 4〇. In the state of being accommodated, the ball 41 can be rotated only in the center axial direction; further, the receiving groove 40 is annular, but is equally spaced from the circumference of the convex side surface 42 of the convex portion 44 of the mirror disk 16 An independent long groove can be formed in the circumferential direction; and, the receiving groove 4〇 The cross-sectional shape is exemplified by a trapezoidal shape, but the spherical body 41 may be formed in a rectangular shape as long as it cannot be detached in the vertical direction of the central axis and is freely rotatable, and a collar is provided on the opening edge. As shown in FIG. 4, the set member fixing screws 49 on one side or both sides of the row of the balls 41 in the receiving groove 40 are perpendicular to the side surface 42 of the boss and are buried from the side 42 of the boss. The method is locked; the diameter of the fixing screw 49 is larger than the diameter of the ball 41; therefore, when the fixing screw 49 is removed, the hole 41 can be received to receive and remove the ball 41 of the receiving groove 40; when only the partitioning member is disposed on one side of the ball 41 The other end of the row of the balls 41 is provided with a fixing boss to prevent the ball 41 from moving. From the viewpoint of easy handling and low cost, the partitioning member is preferably a fixing screw, but other members such as an elastic member may be used.
13 1301792 裝卸、固定手段的塊狀物。 根據實施例來說’賴41屬於直徑2mm的金属球；球體 41使用的材質為不鏽鋼或軸承鋼等；球體41硬度不低於扣合 球體41的外圍支承環31硬度，而且昂貴的外圍支承環31會 因與球體41扣合而受損；因此球體41触佳材質為，硬度 IffiC57〜58 &硬度低於轴承峨猶鋼；如上騎言，是藉由 收容溝40、球體41及固定螺钉49構成出滾珠軸承36，但滚 φ 珠轴承36並未受限於此構成，也可採用市售滾珠護圈等。 如圖2及圖4所示，球體41列的兩侧附近設有除氣溝 45、45 ;除氣溝45是從凸起部側φ 46與外圍支承環31内圍 面47間隙G2’朝向鏡面盤16凸起部44上揚部的空間連通的 方式’在凸起部側© 42被削成圓弧狀；未設置除氣溝45時 的除氣通路剖面積，是藉由設置於凸起部細42及外圍支承 環31内圍面43間隙G1的數個球體41、及從傳統作法中縮小 鲁 間隙G2而減少，因而受限於模腔21所發生之溶化樹脂氣體 專釋放量，為此，而設置除氣溝45以擴大除氣通路剖面積； 根據實施例記载’除氣溝45的最大深度為Q.—，寬為6醜； 再者’除氣溝45並不要做成上述般的剖面圓弧狀，也可 做成剖面矩形等其他形狀。 來冑基於@ 1賴2，說贼形絲絲成形模具裝 置1〇時的作動；將射出成形機活動盤移㈣定盤，再讓活動 1301792 式35合模於固定式20;將固定式20的凸起部44嵌入於活動 式35凹部，以形成出模腔21 ;此時，凸起部44凸起部側面 42則透過數個球體41，被引導至外圍支承環31内圍面43; 外圍支承環31是藉由支承插銷33被推壓到鏡面盤23，而被 扣合於只朝向中心轴垂直方向移動；透過相關構成所形成的 凸起部側面42與内圍面43之間隙G1，屬於在全周上是從球 體41凸起部侧面42的突出量G1 ;再者，從凸起部侧面42 與内圍面43之間隙G1，而設置於模腔21，且呈規定的模腔 21厚度時的凸起部侧面46與内圍面47之間隙G2小於間隙 G1 (實施例為5/zm);此外，間隙G1被平行設置於中心軸， 相對之下間隙G2是從中心軸而傾斜設置於内侧，因此間隙G2 會隨者壓縮成形的進行而小於間隙Gi，且有一部分不發生接 觸’而可確保良好的間隙。 止衝塊19在合理接觸模具25的位置上，是從合理接觸 澆口套13以推壓未出示圖示的射出裝置，對模腔21射出事 先進行可塑化而貯留於射出裝置前端的熔化樹脂後，在適當 時機將活動式25移往固定式20，以展延與流動模腔21内的 溶化樹脂’以進行壓縮成形。藉由這種壓縮成形，將熔化樹 脂填充於模腔21内，並讓外圍支承環31固定部48到達内圍 面47 ;此時，間隙G2會充分縮窄且均一形成，因此間隙G2 不知入溶化樹脂，光碟基板外圍端也不發生毛邊；此外，例 15 1301792 如間隙G2即使有侵入切為熔化樹脂而形成毛邊，也能呈現均 整狀態’由於光碟基板的重量分佈無變化，因此並無高速旋 轉光碟時所引起的偏心問題。 壓縮成形時的凹部與凸起部44之間的嵌合，是以數百微 米範圍朝向中心軸向移動，但球體41與收容溝4〇内側兩面 之間設有間隙，因此球體41在壓縮成形中可輕鬆轉動，以有 效執行壓縮成形。 填充於模腔21的熔化樹脂會立即開始冷卻；且冷卻過程 中’公刀27會在適當時機前進，在澆口插件17中心孔上， 則藉由將公刀27嵌入於澆口套13端面上所形成的凹部，以 穿孔模腔21 β光碟基板的中心開口後，從固定式2〇中離隔 活動式35，並從鏡面盤16離模光碟基板，再以受到壓模機 22支承的方式開模；此外，被澆口切斷的澆口則受到突出插 銷26先端所支承後開模；開模後，突出插銷26會先前進， 澆口則突出，暫時延遲動作的突出套筒28則前進後，再取出 突出中心開口穿孔的光碟基板。 接下來，將基於圖3說明其他光碟基板成形模具裝置 50 ;其他辆基板成形模具裝置5()，具有關光碟基板 成形模具裝置10鏡面盤16、鏡面盤23及賴支承環31的鏡 面盤5卜鏡面盤56及外圍支承環55，該其他構件構成則同 於光碟基減形模具裝置1G ;因此其他光縣板成形模具裝 * \ 16 1301792 置5〇是以’將壓模機22配置於固定式侧鏡面盤5i為例，但 _光縣板成形模具裝㈣—樣，也可將賴機22配置 於活動式端。 動式侧鏡面盤56外圍有極大段層部分，該段層部分内 側具有朝向固定式侧鏡面盤51突出的凸峡62;凸起部犯 還叹置了較小的&層部分，凸起部62侧面被區劃成，位於大 段層部分與小段層部分之間的凸起部側面58、及鄰接凸起部 # 62端面鏡面的凸起部側面60 ;凸起部侧面58上設有滾珠轴 承36。 與凸起部側面58、60呈對置，而具有_面59、61的 相絲環55，^畅自__方雜合於凸起部 62外圍，·而且凸起部側面58與内圍面59之間隙，是藉由滚 珠轴承36輯持於間_ ;此外，凸起部編60與内圍面 61之間隙’被維持在小於間隙G1的間隙⑵；外圍支承環昶 歧鏡面盤56的大段層部分表面，而藉由彈發構件等突出機 構57 ’隨時依附於中心軸向；依附外圍支承環阳的突出機構 耵的相反面則備有雙重環狀凸起部，·外側環狀凸起部，則透 過盡頭環52減鏡面盤5〗，低於外側觀凸起㈣内侧環狀 凸起部則視為固定部53,而以些微間隙讓鏡面盤51鏡面支承 壓模機22 〇 其他光碟基板成形模具裝置50的作動，因外圍支承環叼13 1301792 Blocks for loading and unloading and fixing means. According to an embodiment, 'Lai 41 belongs to a metal ball having a diameter of 2 mm; the ball 41 is made of stainless steel or bearing steel; the hardness of the ball 41 is not lower than the hardness of the peripheral support ring 31 of the engaging ball 41, and the expensive peripheral support ring 31 will be damaged by the engagement with the ball 41; therefore, the ball 41 is made of a good material, the hardness IffiC57~58 & hardness is lower than the bearing 峨 钢 steel; as the riding, it is by the receiving groove 40, the ball 41 and the fixing screw 49 constitutes the ball bearing 36, but the rolling φ bead bearing 36 is not limited to this configuration, and a commercially available ball retainer or the like may be used. As shown in FIG. 2 and FIG. 4, degassing grooves 45 and 45 are provided in the vicinity of both sides of the row of the balls 41. The deaeration grooves 45 are oriented from the convex portion side φ 46 and the peripheral support ring 31 inner peripheral surface 47 gap G2'. The manner in which the space of the raised portion of the convex portion 44 of the mirror disk 16 communicates is cut in an arc shape on the convex portion side © 42; the sectional area of the degassing passage when the degassing groove 45 is not provided is provided by the convex portion The portion 42 and the plurality of spheres 41 of the gap G1 of the peripheral surface 43 of the peripheral support ring 31 and the reduction of the narrow gap G2 from the conventional method are reduced, and thus are limited by the specific release amount of the dissolved resin gas generated in the cavity 21. Therefore, the deaeration groove 45 is provided to enlarge the cross-sectional area of the degassing passage; according to the embodiment, the maximum depth of the deaeration groove 45 is Q.-, and the width is 6 ug; The above-described cross-sectional arc shape may be formed into other shapes such as a cross-sectional rectangle.胄 胄 胄 @ 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 贼 胄 胄 贼 胄 胄 贼 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄The convex portion 44 is embedded in the concave portion of the movable mold 35 to form the cavity 21; at this time, the convex portion side surface 42 of the convex portion 44 is transmitted through the plurality of balls 41, and guided to the inner peripheral surface 43 of the outer peripheral support ring 31; The outer peripheral support ring 31 is pushed to the mirror disk 23 by the support pin 33, and is engaged to move only in the vertical direction toward the central axis; the gap G1 between the side surface 42 of the convex portion and the inner peripheral surface 43 formed by the relevant structure is transmitted. It is a projection amount G1 from the side surface 42 of the convex portion 41 of the spherical body 41 over the entire circumference; further, it is provided in the cavity 21 from the gap G1 of the convex portion side surface 42 and the inner circumferential surface 43, and is in a prescribed mode. The gap G2 between the convex portion side surface 46 and the inner circumferential surface 47 at the thickness of the cavity 21 is smaller than the gap G1 (5/zm in the embodiment); further, the gap G1 is disposed in parallel to the central axis, and the gap G2 is opposite from the central axis. The inclination is set on the inner side, so the gap G2 is smaller than the gap Gi as the compression molding progresses, and a part is not A contact occurs to ensure a good gap. The stopper 19 is in a position where the mold 25 is properly contacted, and the injection device is not properly shown in contact with the sprue 13 to eject the molten resin which is previously plasticized and stored in the front end of the injection device. Thereafter, the movable mold 25 is moved to the stationary mold 20 at an appropriate timing to spread the molten resin in the flow cavity 21 to perform compression molding. By this compression molding, the molten resin is filled in the cavity 21, and the peripheral support ring 31 fixing portion 48 reaches the inner peripheral surface 47; at this time, the gap G2 is sufficiently narrowed and uniformly formed, so the gap G2 is not known. The melted resin does not cause burrs at the peripheral end of the optical disk substrate. Further, in Example 15, 1301792, if the gap G2 is invaded and cut into molten resin to form a burr, it can assume a uniform state. Since there is no change in the weight distribution of the optical disk substrate, there is no high speed. The eccentricity caused by rotating the disc. The fitting between the concave portion and the convex portion 44 at the time of compression molding is moved toward the central axis in a range of several hundred micrometers, but a gap is provided between the spherical body 41 and the inner side of the receiving groove 4, so that the spherical body 41 is compression-molded. It can be easily rotated to effectively perform compression forming. The molten resin filled in the cavity 21 immediately starts to cool; and during the cooling process, the male blade 27 advances at an appropriate timing, on the center hole of the gate insert 17, by embedding the male knife 27 in the end face of the sprue bushing 13. The recess formed in the cavity is opened by the center of the perforated cavity 21 β-optical substrate, and then the movable mold 35 is separated from the fixed type 2, and the optical disk substrate is separated from the mirror disk 16 and supported by the molding machine 22. In addition, the gate cut by the gate is supported by the leading end of the protruding bolt 26 to open the mold; after the mold is opened, the protruding bolt 26 will advance and the gate protrudes, and the protruding sleeve 28 temporarily delaying the movement is After advancing, the disc substrate that protrudes through the center opening is taken out. Next, another optical disk substrate forming die device 50 will be described based on FIG. 3; another substrate forming die device 5 () having a mirror disk 5 for closing the mirror substrate forming mirror device 10, the mirror disk 23, and the support ring 31 The mirror plate 56 and the peripheral support ring 55 are formed in the same manner as the disk-based reduction mold device 1G; therefore, other Gwangxian plate forming molds are placed in the same manner as the 'molding machine 22' The fixed side mirror plate 5i is taken as an example, but the _Guangxian plate forming mold is mounted (four), and the sling machine 22 may be disposed at the movable end. The periphery of the movable side mirror plate 56 has a maximum layer portion, and the inner side of the segment portion has a convex gorge 62 protruding toward the fixed side mirror plate 51; the convex portion sighs a smaller & layer portion, and the protrusion The side of the portion 62 is divided into a convex portion side surface 58 between the large segment portion and the small segment portion, and a convex portion side surface 60 adjacent to the convex portion #62 end surface mirror surface; the convex portion side surface 58 is provided with balls Bearing 36. Opposite the convex side faces 58, 60, and the phase wire loops 55 having the _ faces 59, 61 are smoothly mixed from the periphery of the convex portion 62, and the convex side faces 58 and inner circumferences The gap of the face 59 is held by the ball bearing 36. Further, the gap ' between the boss 60 and the inner face 61 is maintained at a gap (2) smaller than the gap G1; the peripheral support ring 昶 mirror face plate 56 The surface of the large segment portion is attached to the central axis by the protruding mechanism 57' such as the elastic member; the opposite surface of the protruding mechanism 依 attached to the peripheral supporting ring is provided with a double annular convex portion, and the outer ring The convex portion is passed through the end ring 52 to reduce the mirror surface plate 5, and the inner annular protrusion portion is lower than the outer side viewing protrusion (4) as the fixing portion 53, and the mirror plate 51 is mirror-supported by the molding machine 22 with a slight gap. 〇Operation of other optical disk substrate forming mold device 50 due to peripheral support ring 叼
17 (S 1301792 不同於光碟基板成形模具裝置10的外圍支承環31，因此光碟 基板成形模具裝置10的作動也不同；換言之，外圍支承環55 外侧環狀凸起部，在合模初期階段射出熔化樹脂前，成形出 合理接觸鏡面盤51的模腔54;而且鏡面盤56凸起部62是透 過外圍支承環55内圍面59，61及滾珠軸承36持績扣合的活 動式’則再度移往固定式；模腔54形成所定容積時則射出溶 化樹脂，活動式則再度移往固定式以進行壓縮成形；此時， 間隙G2是藉由滾珠轴承36充分縮窄以均勻形成，因此間隙 G2不侵入熔化樹脂，光碟基板外圍端也不發生毛邊；此外， 即使間隙G2有侵入些微的溶化樹脂而形成毛邊，也能呈現均 整狀態’由於光碟基板的重量分佈無變化，因此並無高速旋 轉光碟時所引起的偏心問題。此外，壓縮成形時的外圍支承 環55與凸起部62之間的嵌合，是以數百微米範圍朝向中心 轴向移動，但球體41與收容溝40内侧兩面之間設有間隙， 因此球體41在壓縮成形中可輕鬆轉動，以有效執行壓縮成 形。再者，壓縮成形之後的工程同於光碟基板成形模具裝置 10，因而省略說明。 本發明包含基於熟習該項技術者的知識，所進行之各種 變更、修正、改良等狀態後所實施之物；此外，變更前述内 容的實施狀態，只要未脫離本發明主要内容即屬本發明範圍。 18 1301792 【圖式簡單說明】 圖1光碟基滅賴具“之重要部位縱斷面圖。 圖2圖1的固定式與活動式扣合部放大斷面圖。 圖3其他光碟基板成形模具裝置扣合部之放大斷面圖 圖4表示本發明滾珠軸承的圖2之入一八剖視圖。 圖5圖4的B — B剖視斷面圖。 【主要元件符號說明】 10、50光碟基板成形模具裝置 11定位環 12斷熱板 13澆口套 14模具 15、 24内板 16、 23、51、56 鏡面盤 17澆口插件 18導桿 19止衝塊 20固定式模具 21、54模腔 22壓模機 23活動式鏡面盤 25模具 1301792 26突出插銷 27公刀 28突出套筒 29固定套筒 30内圍壓模機支座 31、55外圍支承環 32壓環 33支承插銷 35活動式模具 36滾珠轴承 40收容溝 41球體 42、 46、58、60 凸起部側面 43、 47、59、61 内圍面 44、 62 凸起部 45除氣溝 49固定螺釘 52盡頭環 53固定部 57突出機構 G1、G2間隙 2017 (S 1301792 is different from the peripheral support ring 31 of the optical disk substrate forming die device 10, so the operation of the optical disk substrate forming mold device 10 is also different; in other words, the outer annular convex portion of the outer peripheral support ring 55 is melted at the initial stage of the mold clamping. Before the resin, a cavity 54 that is reasonably contacted with the mirror disk 51 is formed; and the convex portion 62 of the mirror disk 56 is transmitted through the inner surface 59, 61 of the peripheral support ring 55, and the movable bearing of the ball bearing 36 is re-shifted In the fixed type; when the cavity 54 forms a predetermined volume, the molten resin is injected, and the movable type is again moved to the fixed type for compression molding; at this time, the gap G2 is sufficiently narrowed by the ball bearing 36 to be uniformly formed, so the gap G2 No intrusion of the molten resin, no burrs occur on the peripheral end of the optical disk substrate; in addition, even if the gap G2 invades the slightly melted resin to form a burr, it can assume a uniform state. Since there is no change in the weight distribution of the optical disk substrate, there is no high-speed rotating optical disk. The eccentricity problem caused by the time. In addition, the fitting between the peripheral support ring 55 and the boss portion 62 during compression molding is in the range of several hundred micrometers. The center is axially moved, but a gap is provided between the spherical body 41 and the inner side of the receiving groove 40, so that the spherical body 41 can be easily rotated during compression molding to effectively perform compression molding. Further, the work after compression molding is the same as the formation of the optical disk substrate. The present invention includes objects that have been modified based on the knowledge of those skilled in the art, and that have been modified, modified, improved, etc., and that the implementation of the above-described contents is changed without departing from the present invention. The main content of the invention is within the scope of the invention. 18 1301792 [Simple description of the drawing] Fig. 1 is a longitudinal section view of the important part of the disc base destroyer. Fig. 2 is an enlarged sectional view of the fixed and movable fastening part of Fig. 1. Fig. 3 is an enlarged cross-sectional view showing the engaging portion of another optical disk substrate forming mold device. Fig. 4 is a cross-sectional view showing the ball bearing of Fig. 2 of the present invention. Fig. 5 is a cross-sectional view taken along line B - B of Fig. 4. DESCRIPTION OF SYMBOLS 10, 50 optical disc substrate forming mold device 11 positioning ring 12 heat-dissipating plate 13 sprue bushing 14 mold 15, 24 inner plate 16, 23, 51, 56 mirror plate 17 gate insert 18 guide rod 1 9 stop block 20 fixed mold 21, 54 cavity 22 molding machine 23 movable mirror plate 25 mold 1301792 26 protruding bolt 27 male knife 28 protruding sleeve 29 fixed sleeve 30 inner compression molding machine support 31, 55 Peripheral support ring 32 pressure ring 33 support pin 35 movable mold 36 ball bearing 40 receiving groove 41 ball 42, 46, 58, 60 convex portion side 43, 43, 59, 61 inner peripheral surface 44, 62 convex portion 45 Air groove 49 fixing screw 52 end ring 53 fixing portion 57 protruding mechanism G1, G2 gap 20