1290541 玫、發明說明： 【發明所屬之技術領域】 本發明是有關於一種成形裝置，特別是指一種可導正 玻璃硝材中心位置的可導正玻璃硝材的玻璃模造成形裝 置。 【先前技術】 如圖1、2所示，為習知一種用於成形光學玻璃鏡片 的模具，包含一套筒1、一定位於該套筒i内而可供一玻 璃硝材4置放的下模仁2，及一可移動地套設於該套筒j 内的上模仁3。一般而言，當該玻璃硝材4被放置於該下 模仁2上後，該上模仁3在局溫模造過程中即可下移至將 該玻璃硝材4加壓成形為一玻璃鏡片6 (見圖4 )。然而， 如圖1、2所示，實際上由於該玻璃硝材4在置放過程中 或模具移載過程中（例如連續模的生產流程），均可能發 生其中心位置偏離該套筒i的中心軸線位置的情形，且， 此種模具在將該玻璃硝材4成形為玻璃鏡片的過程中，並 無法將該玻璃硝材4的中心位置導正，因此，該玻璃硝材 4不僅往往會成形為一偏肉鏡片5而成為不良品，且，該 玻璃硝材4在成形過程中，亦往往會發生與該套筒丨黏著 的問題，或受擠壓而侵入該套筒丨與該下模仁2之間，而 導致咬模破壞模具的問題。 再者，如圖3、4所示，當該玻璃硝材4的中心位置 沒有偏離該套筒1的中心軸線位置時，雖然該玻螭硝材4 可被加壓成形為該破璃鏡片6，但是，如圖5所示，此種 1290541 模具為了讓該玻璃鏡片6可順利地移出該套筒1，並沒有 設置任何構造來擋止該玻璃鏡片6,因此，在該上模仁3 上移脫離該套筒1的過程中，常會發生該玻璃鏡片6貼附 於該上模仁3上的問題，如此，不僅會影響後續的自動化 5 作業，且若該玻璃鏡片6又突然掉落，更會造成該玻璃鏡 片6與該下模仁2的損傷。 【發明内容】 因此’本發明之目的，即在提供一種可導正玻璃確材 的中心位置並可避免成形後的玻璃鏡片貼附於上模仁上 10 的可導正玻璃硝材的玻璃模造成形裝置。 本發明可導正玻璃硝材的玻璃模造成形裝置，是可用 於將一具有一較小外徑的玻璃硝材成形為一具有一較大 外徑的玻璃鏡片，該玻璃硝材具有一底面、一相反於該底 面的頂面，及一連接於該底、頂面之間的外周面，該玻璃 15 模造成形裝置包含一下套筒、一下模仁、一上套筒，及一 上模仁。該下套筒具有一第一周壁，及一由該第一周壁所 圍繞界定出的第一内孔，該第一周壁具有一實質上朝上的 第一抵接面。該下模仁是套接於該第一内孔，具有一第一 塑形面。該上套筒具有一第二周壁，及一由該第二周壁所 2〇 圍繞界定出且孔徑對應於該玻璃硝材的外徑的第二内 孔，該第二周壁具有一底周面及一朝向該第一抵接面的第 二抵接面，當該上、下套筒的第二、一抵接面互相抿接時， 該底周面是位於該第—内孔内，@，當該玻璃石肖材的底面 承放於4帛冑形面上時，該玻璃石肖材的外周面是限位於 1290541 該第二内孔内，且該底周面是低於該玻璃硝材的頂面。該 上模仁是套接於該第二内孔，而可在一遠離該下模仁的第 一位置與-靠近該下模仁的第二位置之間移動，該上模仁 具有一朝向該第-塑形面的第二塑形面，當該上模仁移動 5 至該第二位置時，可使該玻璃硝材成形為該玻璃鏡片。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之二較佳實施例的詳細說明中，將可清 楚的明白。 在提出存細說明之前，要注意的是，在以下的說明 中，類似的元件是以相同的編號來表示。 參閱圖6,本發明可導正玻璃硝材的玻璃模造成形裝 置的第較佳貫施例’是可用於將—具有—較小外徑的 玻离硝材100成形為一具有一較大外徑的玻璃鏡片2〇〇(見 15 ® 10)，該玻璃石肖材⑽具m U0、-相反於該底面 110的頂面120，及一連接於該底、頂面⑽之間的 外周面130该玻璃模造成形裝置包含：一下套筒、一 下模仁20、一上套筒3〇，及一上模仁4〇。 該下套筒10具有一第一周壁u，及一由該第一周壁 2〇 U所圍繞界定出的第一内孔12。該第一周壁U具有一實 貝上朝上的第-抵接面lu，在本實施例中，該第一抵接 面111疋形成於该第一周壁u朝向該上套筒3〇的頂端上。 該下模仁20是套接於該第一内孔12，具有一可套接 ;/第内孔12内的安裝部2卜一與該安裝部21連接而 1290541 可抵，於違第-周壁u的—底端面上的限位部22、一與 該安波邛21連接的成形部23，及一形成於該成形部23朝 向該上模仁40的一端上的一第一塑形面24。 ίο 15 忒上套筒30具有一第二周壁31，及一由該第二周壁 31所圍繞界定出的第二内孔32。該第二周壁^具有一相 反於該下套筒10的大徑部311、-朝向該下套冑10且外 徑對應於該第-内孔12的孔徑的小徑部312…形成於該 大】钇邛311、312之間且朝向該第一抵接面丨丨丨的第二 抵接面313,及一形成於該小徑部312朝向該下套筒⑺的 底端上的底周面314,且該底周面314具有一由内向外朝 下傾斜的倒角部3141。該第二内孔32具有一相反於該下 套筒10的大孔徑段321、一朝向該下套筒1〇且孔徑對應 於該玻璃硝材100的外徑的小孔徑段322，及一界定於該 大、小孔徑段32卜322之間的肩部323。如圖7所示，當 遠小徑部312套接於該第_内孔12内時，該第二抵接面 313是與該第一抵接面lu抵接，且該底周面314是位於 該第-内孔内’而如圖8所示，當該玻璃石肖材彻的 底面110承放於該第一塑形面24上時，該玻璃硝材1〇〇 的外周面130是限位於該小孔徑段322内，且該底周面314 是低於該玻璃硝材100的頂面120。 該上模仁40是套接於該第二内孔32，而可在一遠離 該下模仁20的第一位置（見圖9)與一靠近該下模仁 的第二位置（見圖10)之間移動。該上模仁4〇具有一可 套接於該第二内孔32的大孔徑段321内的第」套接部 20 1290541 1 ” °亥第一套接部41連接而可套接於該第二内孔32 的小孔徑段322内的第二套接部42，及—形成於該第二套 接部42朝向該第—塑形面24的—端上的第二塑形面 5 10 如圖7所示，本發明實際進行成形操作時，是先藉由 人工或機械夾爪（圖未示）抓取該上套筒％的大徑部93ιι 的頂端’而將該小徑部312下移組入該下套筒ig的第一 内孔12内，並使該第二抵接面313與該第—抵接面⑴ 抵接，接著，如圖8所示，將該玻璃硝材1〇〇經該第二内 孔32的小孔徑段322放置於該下模仁2〇的第一塑形面μ 上，此時，由於該玻璃硝材1〇〇的外周面13〇是限位於該 小孔徑段322内，因此，該玻璃硝材1〇〇即可被自動導正 15 至該下套筒10的中心軸線位置上，然後，如圖9、1〇所 示，藉由.人工或機械夾爪（圖未示）抓取該上模仁4〇的 第一套接部4丨的頂端，而將該上模仁4〇的第二套接部42 組入該小孔徑段322内，如此，在進行高溫模造的過程中， 當該上模仁40從該第一位置被下壓至該第二位置時，該 第二塑形面43可與該倒角部3141銜接，而同時抵接於該 玻璃鏡片200的頂面上，因而使軟化的玻璃硝材在該 第二塑形面43、該底周面314與該第一塑形面24之間被 加壓成形為該玻璃鏡片200。 此後，當要將該玻璃鏡片200移出該下套筒1〇時， 如圖11所示，是先使該上模仁40上移脫離該上套筒3〇， 在此過程中，由於該玻璃鏡片200的頂面是被該上套筒3〇 的底周面314的倒角部3141所抵止，因此，該玻璃鏡片 20 1290541 200並不會貼附於該上模仁40上而隨其上移，接著，如圖 12所示，再使該上套筒30上移脫離該下套筒1〇，在此過 程中’由於該玻璃鏡片200與該下模仁2〇的第一塑形面 24的貼附面積是遠大於該玻璃鏡片2〇〇與該倒角部Η" 的貼附面積，因此，該玻璃鏡片2〇〇亦不會貼附於該上套 筒30上而隨其上移，最後，如圖13所示，即可順利地將 成形良好的玻璃鏡片200移出該下套筒1〇。 經由以上的說明，可再將本發明的優點歸納如下： 一、本發明上套筒30的第二内孔32的小孔徑段322 的孔徑是對應於該玻璃硝材100的外徑，且，當該玻璃硝 材100承放於該下模仁20上時，該底周面314是低於該 玻璃硝材100的頂面120,因此，當該玻璃硝材1〇〇經該 小孔徑段322被置放於該下模仁2〇上時，該小孔徑段322 不僅可將該玻璃硝材1〇〇自動導正至該下套筒1〇的中心 軸線位置上，更可協助該第—塑形面24平穩地承載住該 玻璃硝材100,而防止該玻璃硝材1〇〇相對該第一塑形面 24發生滑移或偏移的情形，如此，本發明即可有效避免該 玻璃储100因成形位置不正而成形為一偏肉鏡片，而大 幅提高製造該玻璃鏡片200的產品良率。 ~田成开》後該上模仁40上移脫離該上套筒30時， 本I明上套筒30的底周面314的倒角部3141可抵止該玻 璃鏡片200的頂面，因此，本發明可有效防止該玻蹲鏡片 2〇〇貼附於該上模仁4〇上而隨其上移。 參閱圖14、15,為本發明的一第二較佳實施例，該第 10 1290541 二較佳實施例是類似於該第—較佳實施例，其差異之處在 於·· 該第二較佳實施例包含一套筒單元5〇、一下模仁， 及一上模仁40。 5 該套筒單元50具有一周壁5卜及一由該周壁51所圍 繞界定出的内孔52。該内孔52具有一孔徑大於該破璃鏡 片200的外徑的大孔徑段521及一孔徑對應於該玻璃硝材 1〇〇的外徑的小孔徑段522,該周壁51具有一界定於該 大、小孔徑段521、522之間的底周面51卜且該底周面51\ 10 具有一由内向外朝下傾斜的倒角部5in。 該下模仁20是套接於該内孔52的大孔徑段521，並 具有一第一塑形面24。當該玻璃硝材1〇〇的底面u〇承放 於該第一塑形面2今上時，該玻璃硝材1〇〇的外周面13〇 是限位於該内孔52的小孔徑段522内，且該底周面5ιι 15 是低於該玻璃石肖材100的頂面120。 該上模仁4〇是套接於該内孔52的小孔徑段522，而 可在一遠離該下模仁20的第一位置（見圖14)與一靠近 該下模仁20的第二位置（見圖15)之間移動，該上模仁 4〇具有一朝向該第一塑形面24的第二塑形面43。當該上 2〇 模仁移動至該第二位置，而使該玻璃硝材1〇〇成形為 該玻璃鏡片200時，該第二塑形面43是與該倒角部η。 銜接，而同時抵接於該玻璃鏡片2〇〇的頂面上。 如此，在該玻璃鏡片200成形後，本實施例僅需依序 移走該上模仁40、該套筒軍元50與該鏡片2〇〇，亦可達 11 1290541 到與上述第一較佳實施例相同的目的與功效。 壯歸”、内上$，本發明之可導正玻璃確材的玻璃模造成形 裝置，不僅可導正玻翻材的中心、位置並可平穩地承載玻 璃肖材以防止玻璃硝材的中心位置偏移，更可避免成形 後的破璃鏡片貼附於上模仁上，故確實能達到發明之目 的。 准乂上所述者’僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及創作說明書内容所作之簡單的等效變化與修飾，皆 仍屬本發明專利涵蓋之範圍内。 12 1290541 【圖式簡單說明】 圖1是習知一種玻璃成形模具與一玻璃硝材的剖視 圖，說明該玻璃硝材的中心位置偏離該模具的中心軸線位 置； 圖2是一類似圖i的視圖，說明該玻璃硝材被加壓成 形為一偏肉鏡片； 圖3是一類似圖1的視圖，說明該玻璃硝材的中心位 置沒有偏離該模具的中心軸線位置； 圖4是一類似圖3的視圖，說明該玻璃硝材被加壓成 形為一破璃鏡片； 圖5疋一類似圖3的視圖，說明該玻璃鏡片成形後貼 附於該成形模具的一上模仁上，而隨該上模仁上移； 圖6是本發明之可導正玻璃硝材的玻璃模造成形裝置 一第一較佳實施例與一玻璃硝材的分解剖視圖； 圖7是一剖視圖，說明該第一較佳實施例的一上套筒 下移而與一下套筒套接； 圖8是一剖視圖，說明該玻璃硝材是置放於該第一較 佳實施例的一下模仁上，且該玻璃硝材的外周面是限位於 該上套筒内； 圖9是-類似圖8的視圖，說明該第一較佳實施例的 一上模仁下移而與該上套筒套接； 圖10是一類似圖8的視圖，說明該上模仁下移至定 位而將該玻璃硝材加壓成形為一玻璃鏡片； 圖11是一類似圖8的視圖，說明該玻璃鏡片成形後， 13 1290541 垓上杈仁上移脫離該上套筒； 「 2疋剖視圖，說明該上套筒上移脫離該下套筒； 一 ·圖13是一剖視圖，說明該玻璃鏡片上移脫離該下膜 1 一 ， 一圖14是本發明之可導正玻璃硝材的玻璃模造成形裝 置一第二較佳實施例與一玻璃頌材的組合剖視圖；及 、圖b是一類似圖14的視圖，說明該第二較佳實施例 的-上模仁下移至定位而將該玻璃硝材加壓成形為一玻 14 1290541 【圖式之主要元件代表符號簡單說明】 1 ·… 套筒 312 · 小徑部 2 ·… 下模仁 313 * 第二抵接面 3 ·… 上模仁 314 · 底周面 4丨·· 玻璃硝材 3141· 倒角部 5 *… 偏肉鏡片 32 第二内孔 6 * ' % 玻璃鏡片 321 ‘ 大孔徑段 100 * 玻璃梢材 322， 小孔徑段 110 · 底面 323 · 肩部 120' 頂面 40… 上模仁 130 · 外周面 41 · · 第一套接部 200， 玻璃鏡片 42 ·， 第二套接部 10 · 下套筒 43 · · 第二塑形面 11… 第一周壁 50… 套筒單元 111 · 第一抵接面 51… 周壁 12… 第一内孔 511 · 底周面 20… 下模仁 5111 · 倒角部 21… 安裝部 52 · · 内孔 T1 , ♦ 限位部 521 * 大孔徑段 23… 成形部 522 · 小孔徑段 24… 第一塑形面 30 · · 上套筒 31… 第二周壁 311 * 大徑部 15BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a forming apparatus, and more particularly to a glass mold forming apparatus for guiding a positive glass nitrate material at a central position of a glass nitrate material. [Prior Art] As shown in FIGS. 1 and 2, a mold for forming an optical glass lens includes a sleeve 1 and a lower mold which is located in the sleeve i and can be placed in a glass nitrate material 4. The core 2 and a top mold 3 movably sleeved in the sleeve j. In general, after the glass nitrate material 4 is placed on the lower mold core 2, the upper mold core 3 can be moved down to the glass mold 6 during the local temperature molding process. See Figure 4). However, as shown in FIG. 1 and FIG. 2, in fact, due to the glass nitrate material 4 during the placement process or during the mold transfer process (for example, the production process of the continuous mold), the center position may deviate from the center of the sleeve i. In the case of the axial position, and in the process of forming the glass nitrate material 4 into a glass lens, the center position of the glass nitrate material 4 cannot be guided, and therefore, the glass nitrate material 4 is not only often formed into a partial deviation. The flesh lens 5 becomes a defective product, and the glass nitrate material 4 tends to adhere to the sleeve during the forming process, or is squeezed to invade between the sleeve and the lower mold 2 , causing the die to break the mold. Further, as shown in FIGS. 3 and 4, when the center position of the glass nitrate material 4 does not deviate from the central axis position of the sleeve 1, although the glass nitrate material 4 can be press-formed into the glass lens 6, As shown in FIG. 5, the 1590541 mold is configured to allow the glass lens 6 to be smoothly removed from the sleeve 1, and is not provided with any configuration to block the glass lens 6, thereby moving away from the upper mold member 3. During the process of the sleeve 1, the problem that the glass lens 6 is attached to the upper mold core 3 often occurs, so that not only the subsequent automation 5 operation is affected, but also if the glass lens 6 suddenly falls, Damage to the glass lens 6 and the lower mold core 2 is caused. SUMMARY OF THE INVENTION Therefore, the object of the present invention is to provide a glass mold which can guide the center of the glass material and prevent the formed glass lens from being attached to the upper mold core 10 Device. The glass mold forming device capable of guiding the glass nitrate material can be used for forming a glass nitrate material having a smaller outer diameter into a glass lens having a larger outer diameter, the glass nitrate material having a bottom surface and an opposite The top surface of the bottom surface, and an outer peripheral surface connected between the bottom and the top surface, the glass 15 mold forming device comprises a lower sleeve, a lower mold core, an upper sleeve, and an upper mold core. The lower sleeve has a first peripheral wall and a first inner bore defined by the first peripheral wall, the first peripheral wall having a substantially abutting first abutting surface. The lower mold core is sleeved in the first inner hole and has a first molding surface. The upper sleeve has a second peripheral wall, and a second inner hole defined by the second peripheral wall 2b and having an outer diameter corresponding to an outer diameter of the glass nitrate material, the second peripheral wall having a bottom peripheral surface and a a second abutting surface facing the first abutting surface, when the second and abutting faces of the upper and lower sleeves are connected to each other, the bottom peripheral surface is located in the first inner hole, @, when When the bottom surface of the glass stone material is placed on the 4-shaped surface, the outer peripheral surface of the glass stone material is limited to the second inner hole of 1290541, and the bottom surface is lower than the top surface of the glass nitrate material. The upper mold core is sleeved in the second inner hole, and is movable between a first position away from the lower mold core and a second position near the lower mold core, the upper mold core having a direction toward the lower mold core The second shaping surface of the first molding surface, when the upper mold is moved 5 to the second position, the glass nitrate material can be formed into the glass lens. The above and other technical contents, features and effects of the present invention will become apparent from the following detailed description of the preferred embodiments of the invention. Before the detailed description is made, it should be noted that in the following description, like elements are denoted by the same reference numerals. Referring to Figure 6, a preferred embodiment of a glass mold forming apparatus for a positive glass nitrate material of the present invention is used to form a glassed nitrate material 100 having a smaller outer diameter into a larger outer diameter. Glass lens 2〇〇 (see 15®10), the glass stone material (10) has m U0, opposite to the top surface 120 of the bottom surface 110, and a peripheral surface 130 connected between the bottom and top surface (10). The forming device comprises: a lower sleeve, a lower mold core 20, an upper sleeve 3〇, and an upper mold core 4〇. The lower sleeve 10 has a first peripheral wall u and a first inner bore 12 defined by the first peripheral wall 2 〇 U. The first peripheral wall U has a first abutting surface lu facing upwards. In the embodiment, the first abutting surface 111 is formed on the first peripheral wall u toward the upper sleeve 3〇. On the top. The lower mold core 20 is sleeved in the first inner hole 12 and has a sleeve; the mounting portion 2 in the inner hole 12 is connected to the mounting portion 21 and the 1904541 can be abutted against the first-perimeter wall. a limiting portion 22 on the bottom end surface, a forming portion 23 connected to the ampoule 21, and a first molding surface 24 formed on one end of the forming portion 23 facing the upper mold core 40. The upper sleeve 30 has a second peripheral wall 31 and a second inner bore 32 defined by the second peripheral wall 31. The second peripheral wall has a large diameter portion 311 opposite to the lower sleeve 10, a small diameter portion 312 facing the lower sleeve 10 and having an outer diameter corresponding to the aperture of the first inner bore 12, formed on the large a second abutting surface 313 between the ridges 311 and 312 and facing the first abutting surface ,, and a bottom peripheral surface formed on the bottom end of the small diameter portion 312 facing the lower sleeve (7) 314, and the bottom peripheral surface 314 has a chamfered portion 3141 that is inclined downward from the inside to the outside. The second inner hole 32 has a large aperture section 321 opposite to the lower sleeve 10, a small aperture section 322 facing the lower sleeve 1 and having an aperture corresponding to the outer diameter of the glass nitrate 100, and a defined A shoulder 323 between the large and small aperture segments 32 322. As shown in FIG. 7 , when the distal small diameter portion 312 is sleeved in the first inner hole 12 , the second abutting surface 313 abuts against the first abutting surface lu, and the bottom circumferential surface 314 is Located in the first inner bore, and as shown in FIG. 8, when the bottom surface 110 of the glass stone is placed on the first molding surface 24, the outer peripheral surface 130 of the glass nitrate material is limited to the Within the small aperture section 322, the bottom perimeter surface 314 is lower than the top surface 120 of the glass nitrate material 100. The upper mold core 40 is sleeved in the second inner hole 32, and can be in a first position away from the lower mold core 20 (see FIG. 9) and a second position close to the lower mold core (see FIG. 10). ) move between. The upper mold core 4 has a first socket portion 20 1290541 1 that can be sleeved in the large aperture portion 321 of the second inner hole 32. The first socket portion 41 is connected to the first socket portion 41. a second sleeve portion 42 in the small aperture section 322 of the second inner hole 32, and a second molding surface 5 10 formed on the end of the second socket portion 42 facing the first molding surface 24 As shown in Fig. 7, in the actual forming operation of the present invention, the small-diameter portion 312 is first grasped by grasping the top end of the large-diameter portion 93 of the upper sleeve by manual or mechanical jaws (not shown). The first inner hole 12 of the lower sleeve ig is moved into the first inner hole 12, and the second abutting surface 313 is abutted against the first abutting surface (1). Then, as shown in FIG. The small aperture section 322 of the second inner hole 32 is placed on the first molding surface μ of the lower mold core 2, and at this time, since the outer peripheral surface 13 of the glass nitrate material 1 is limited to the small In the aperture section 322, therefore, the glass nitrate material can be automatically guided 15 to the central axis position of the lower sleeve 10, and then, as shown in Fig. 9, 1 ,, by manual or mechanical clamp claw( The first socket portion 4 of the upper mold core 4 is grasped, and the second socket portion 42 of the upper mold core 4 is assembled into the small aperture portion 322. During the high temperature molding process, when the upper mold core 40 is pressed down from the first position to the second position, the second molding surface 43 can be engaged with the chamfered portion 3141 while abutting the glass. On the top surface of the lens 200, the softened glass nitrate material is thus pressure formed into the glass lens 200 between the second molding surface 43, the bottom circumferential surface 314 and the first molding surface 24. Thereafter, When the glass lens 200 is to be removed from the lower sleeve 1 ,, as shown in FIG. 11, the upper mold core 40 is first moved away from the upper sleeve 3 〇, in the process, due to the glass lens 200 The top surface is resisted by the chamfered portion 3141 of the bottom peripheral surface 314 of the upper sleeve 3〇. Therefore, the glass lens 20 1290541 200 is not attached to the upper mold core 40 and moves up therewith. Next, as shown in FIG. 12, the upper sleeve 30 is again moved away from the lower sleeve 1〇, in the process of 'the first plastic due to the glass lens 200 and the lower mold core 2〇 The attachment area of the surface 24 is much larger than the attachment area of the glass lens 2〇〇 and the chamfered portion ,", therefore, the glass lens 2〇〇 is not attached to the upper sleeve 30, and Upward, finally, as shown in Fig. 13, the well-formed glass lens 200 can be smoothly removed from the lower sleeve 1〇. Through the above description, the advantages of the present invention can be further summarized as follows: 1. In the present invention The aperture of the small aperture section 322 of the second inner bore 32 of the sleeve 30 corresponds to the outer diameter of the glass nitrate 100, and the bottom surface 314 is when the glass nitrate 100 is placed on the lower mold core 20. It is lower than the top surface 120 of the glass nitrate material 100. Therefore, when the glass nitrate material 1 is placed on the lower mold core 2 through the small aperture section 322, the small aperture section 322 can not only the glass The nitrate material is automatically guided to the central axis position of the lower sleeve 1〇, which further assists the first molding surface 24 to smoothly carry the glass nitrate material 100, and prevents the glass nitrate material from being opposite to the first A situation in which the molding surface 24 slips or shifts, so that the present invention can effectively avoid the glass storage 100. Forming misregistration sided meat formed into lenses, and large pieces of the product to improve the manufacturing yield of the glass lens 200. When the upper mold core 40 is moved away from the upper sleeve 30, the chamfered portion 3141 of the bottom peripheral surface 314 of the upper sleeve 30 can abut against the top surface of the glass lens 200. The present invention can effectively prevent the glass lens 2 〇〇 from being attached to the upper mold core 4 and moving up therewith. Referring to Figures 14 and 15, a second preferred embodiment of the present invention is similar to the first preferred embodiment. The difference is that the second preferred embodiment The embodiment includes a sleeve unit 5, a lower mold, and an upper mold 40. 5 The sleeve unit 50 has a peripheral wall 5 and an inner bore 52 defined by the peripheral wall 51. The inner hole 52 has a large aperture section 521 having a larger diameter than the outer diameter of the glass lens 200 and a small aperture section 522 having an aperture corresponding to the outer diameter of the glass nitrate 1 , the peripheral wall 51 having a width defined by the aperture The bottom peripheral surface 51 between the small aperture sections 521, 522 and the bottom peripheral surface 51\10 has a chamfered portion 5in inclined from the inside to the outside. The lower mold core 20 is a large aperture section 521 that is sleeved in the inner hole 52 and has a first molding surface 24. When the bottom surface u of the glass nitrate material is placed on the first molding surface 2, the outer peripheral surface 13 of the glass nitrate material 1 is limited to the small aperture section 522 of the inner hole 52. And the bottom surface 5 ι 15 is lower than the top surface 120 of the glass sapphire 100. The upper mold core 4 is a small aperture section 522 that is sleeved in the inner hole 52, and can be in a first position away from the lower mold core 20 (see FIG. 14) and a second position near the lower mold core 20. Moving between positions (see Figure 15), the upper mold core 4 has a second contoured surface 43 facing the first contoured surface 24. When the upper mold core is moved to the second position and the glass nitrate material 1 is formed into the glass lens 200, the second molding surface 43 is the chamfered portion η. Engaged while simultaneously abutting the top surface of the glass lens 2〇〇. Thus, after the glass lens 200 is formed, the embodiment only needs to remove the upper mold core 40, the sleeve military unit 50 and the lens 2 依 sequentially, and may reach 11 1290541 to the first preferred one. The same purpose and efficacy of the examples. Zhuanggui", inside the $, the glass mold forming device of the present invention can not only guide the center and position of the glass, and can smoothly carry the glass material to prevent the center position of the glass nitrate material from being biased. It can prevent the formed glass lens from sticking to the upper mold core, so it can achieve the purpose of the invention. The above description is only a preferred embodiment of the present invention, and cannot be limited thereto. The scope of the present invention, that is, the simple equivalent changes and modifications made by the present invention in the scope of the patent application and the contents of the present invention are still within the scope of the present invention. 12 1290541 [Simple description of the drawing] A cross-sectional view of a glass forming mold and a glass nitrate material, illustrating that the center position of the glass nitrate material deviates from the central axis position of the mold; FIG. 2 is a view similar to the drawing i, illustrating that the glass nitrate material is pressure formed into a partial meat. Figure 3 is a view similar to Figure 1, illustrating that the center position of the glass nitrate material does not deviate from the central axis position of the mold; Figure 4 is a view similar to Figure 3, illustrating The glass nitrate material is press-formed into a glass lens; FIG. 5 is a view similar to FIG. 3, illustrating that the glass lens is attached to an upper mold of the forming mold after being formed, and moves upward with the upper mold; Figure 6 is an exploded cross-sectional view showing a first preferred embodiment of a glass mold forming device for a conductive glass nitrate material of the present invention and a glass nitrate material; Figure 7 is a cross-sectional view showing an upper sleeve of the first preferred embodiment FIG. 8 is a cross-sectional view showing the glass nitrate material placed on the lower mold core of the first preferred embodiment, and the outer peripheral surface of the glass nitrate material is limited to the upper sleeve Figure 9 is a view similar to Figure 8 illustrating the upper mold of the first preferred embodiment being moved down to the upper sleeve; Figure 10 is a view similar to Figure 8 illustrating the upper portion The mold core is moved down to the position to pressurize the glass nitrate material into a glass lens; FIG. 11 is a view similar to FIG. 8 , showing that after the glass lens is formed, 13 1290541 垓 upper 杈 上 is moved upwardly away from the upper sleeve; "2" section view, indicating that the upper sleeve is moved away from the lower sleeve; FIG. 13 is a cross-sectional view showing the glass lens being moved away from the lower film 1 , and FIG. 14 is a second preferred embodiment of the glass mold forming device and a glass coffin of the present invention. A sectional view similar to that of FIG. 14 is a view similar to FIG. 14 illustrating the second preferred embodiment of the upper mold being moved down to the position to pressurize the glass nitrate into a glass 14 1290541. Brief description of the main components representative symbols] 1 ·... Sleeve 312 · Small diameter part 2 ·... Lower mold core 313 * Second abutment surface 3 ·... Upper mold core 314 · Bottom surface 4丨·· Glass nitrate material 3141· Corner 5 *... Partial lens 32 Second inner hole 6 * ' % Glass lens 321 ' Large aperture section 100 * Glass tip 322, Small aperture section 110 · Bottom surface 323 · Shoulder 120' Top surface 40... Upper mold core 130 · outer peripheral surface 41 · · first set of joints 200, glass lens 42 ·, second socket part 10 · lower sleeve 43 · · second shaping surface 11... first peripheral wall 50... sleeve unit 111 · First abutting surface 51... peripheral wall 12... first inner hole 511 · bottom peripheral surface 20 Lower mold core 5111 · Chamfering portion 21... Mounting portion 52 · · Inner hole T1, ♦ Limiting portion 521 * Large aperture section 23... Forming part 522 · Small aperture section 24... First shaping surface 30 · · Upper sleeve 31... Second week wall 311 * Large diameter section 15