201125719 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種鏡片的成型方法，特別是指一種 偏光鏡片的成型方法，能應用於近視鏡片、老花鏡片 '太 陽眼鏡鏡片等的成型方法。 【先前技術】 偏光鏡片的設計是要讓偏射的反光消除，如馬路上的 反光、雪地上的反光、汽車擋風玻璃的反光等等光線的偏 射’偏光鏡片能有效過濾反射光與眩光，而得到較好的視 覺效果。傳統的偏光眼鏡，是將一偏光片直接嵌入鏡框内 ’然而’偏光片本身薄，易變形，因此便有如中華民國公 告第M265631號新型專利案所揭露的「眼鏡鏡片結構改良」 ，是將眼鏡鏡片外側藉由結合劑貼合有一偏光片，使其形 成一具有偏光效果的眼鏡鏡片，藉由眼鏡鏡片具有硬度與 韌性的特性，使偏光片不易變形或破裂。 雖然利用結合劑將該偏光片貼合於一眼鏡鏡片的方式 可以增加該偏光片的強度，但是以結合劑貼合容易產生 介質厚度而影響其透光性，而且使用時間一久，還有退膠 的疑慮。 基於上述原因，便有如中華民國公告第M350027號新 專利案所揭露的「鏡片強化結構」中所揭露，主要是在 一偏光片11上予以射出貼合一強化層12。參閱圖卜先將 I模具2的-固定模座21開具一模穴211，再於該模穴211 中央形成-凹陷區212，將該偏光片u置於該凹陷區212 201125719 中，再將-活動模座22對應地蓋設於該固定模i 2i上， 並予以進料射出貼合上-強化層12，接者便可取出一貼合 有偏光片11的鏡片3。之後再將該鏡片3進行藥水的浸泡 作防霧、強化等處理，經烘乾後再予以裁切成所需之規格 的成品。 述的裝作方式不需使用貼合劑，因此不會有介質的 效應或是退膠的疑慮，然而’上述的製作方式並沒有對進 料射出的強化層！2進行加壓的動作，所以可能會有強化層 12々質地不夠均勻' 強化層12與偏光片u之間的緊密度不 足等問題’因此，如何克服前述問題以提升該鏡片3的品 質，即成為可進一步改善的課題。 【發明内容】 因此，本發明之目的，即在提供一種可以有效避免製 作過程中偏光膜位移、皺摺之偏光鏡片的成型方法。 於是，本發明偏光鏡片的成型方法，是將至少一偏光 膜加工形成一偏光鏡片，該偏光鏡片的成型方法包含： 一偏光膜備製步驟，用以備製一偏光膜； 一裁切沖孔步驟，是以一裁切沖孔模具在該偏光膜上 +壓有至少兩個定位孔後，將該偏光膜裁切成適當大小； 一偏光膜定位步驟，是以一成型模具對該偏光膜用以 進行加工作業，該成型模具包含一第一固定模座、一對應 没置於該第一固定模座上的第一活動模座，及一用以加壓 "亥第活動模座的第一加壓單元，其中，該第一固定模座 包括一個本體、至少一個由該本體表面凹陷的第一凹陷部 201125719 ，及至少兩個由該本體表面突伸的固定針， 模座^括至少一對應於該第_凹陷部的第—凸出部，該偏 光膜是以所述定位孔分別定位於所述： 該第-凹陷部中；及 十上而疋位於201125719 VI. Description of the Invention: [Technical Field] The present invention relates to a method for forming a lens, and more particularly to a method for forming a polarized lens, which can be applied to the formation of a myopic lens, a presbyopic lens, a sunglass lens, and the like. method. [Prior Art] The polarized lens is designed to eliminate the reflection of the polarized lens, such as reflection on the road, reflection on the snow, reflection of the windshield of the car, etc. The polarized lens can effectively filter the reflected light and glare. And get better visual effects. In the conventional polarized glasses, a polarizer is directly embedded in the frame. However, the polarizer itself is thin and easily deformed. Therefore, the "glass lens structure improvement" disclosed in the new patent case of the Republic of China Announcement No. M265631 is a pair of glasses. A polarizer is attached to the outside of the lens by a bonding agent to form a spectacle lens having a polarizing effect. The lens has a hardness and toughness characteristic, so that the polarizer is not easily deformed or broken. Although the polarizer is attached to a spectacle lens by a bonding agent, the strength of the polarizer can be increased. However, the bonding of the bonding agent tends to cause the thickness of the medium to affect the light transmittance, and the use time is long, and the adhesive is removed. Doubt. For the above reasons, it is disclosed in the "lens-reinforced structure" disclosed in the new patent application No. M350027 of the Republic of China, which is mainly for projecting a reinforcing layer 12 on a polarizer 11. Referring to the drawing, the die holder 21 of the I mold 2 is first opened with a cavity 211, and then a recessed portion 212 is formed at the center of the cavity 211, and the polarizer u is placed in the recessed area 212 201125719, and then - The movable mold base 22 is correspondingly disposed on the fixed mold i 2i, and is fed and bonded to the upper-strength layer 12, and the lens 3 to which the polarizing sheet 11 is attached can be taken out. Then, the lens 3 is immersed in a syrup for anti-fog, strengthening, etc., and then dried to be cut into a finished product of a desired specification. The installation method does not require the use of a bonding agent, so there is no effect of the medium or the doubt of the rubber removal. However, the above-mentioned production method does not have a reinforcing layer for the injection! 2 The action of pressurizing is performed, so there may be a problem that the reinforcing layer 12 is not uniform in texture, and the tightness between the reinforcing layer 12 and the polarizer u is insufficient. Therefore, how to overcome the aforementioned problem to improve the quality of the lens 3, that is, It has become a subject that can be further improved. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a molding method for a polarizing lens which can effectively avoid displacement and wrinkle of a polarizing film during production. Therefore, the polarizing lens of the present invention is formed by processing at least one polarizing film to form a polarizing lens, and the polarizing lens forming method comprises: a polarizing film preparing step for preparing a polarizing film; The step of cutting the punching die on the polarizing film and pressing at least two positioning holes to cut the polarizing film into an appropriate size; and the polarizing film positioning step is to use a molding die for the polarizing film For performing a machining operation, the molding die includes a first fixed mold base, a first movable mold base not corresponding to the first fixed mold base, and a pressurization "Hai movable mold base a first pressing unit, wherein the first fixing die holder comprises a body, at least one first recessed portion 201125719 recessed by the surface of the body, and at least two fixing pins protruding from the surface of the body, the die holder At least one corresponding to the first protrusion of the first recessed portion, the polarizing film is respectively positioned in the positioning hole by: the first recessed portion;
閉模進料步驟，將該第—固定模座與該第_活動模 座蓋合’而蓋合後由該第一固定模座的第一凹陷部與該第 -活動模座的第-凸出部共同界個模腔，並對該模 腔進行塑膠材料的進料填充作業，使塑 模腔中而於該偏光膜上形成一強化層.再由二真= 疋進行壓縮鎖模功能，使該偏光膜與該強化層形成一偏光 鏡片。 本發明之功效在於：藉由所述固定針來定位拉伸該偏 光膜，可以有效避免該偏光膜在該閉模進料步驟中有位移 、皺摺，及内應力的產生；而該加壓單元的壓縮鎖模功能 ，使得該強化層可以更為均句，並讓該強化層與偏光膜之 間結合的緊密度更高，進而提升該偏光鏡片的品質。 【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一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖2，本發明偏光鏡片的成型方法之較佳實施例， 包含一偏光膜備製步驟41、一裁切沖孔步驟42、一偏光膜 定位步驟43、一閉模進料步驟44，及一修邊步驟45。首先 要說明的是’該偏光鏡片的成型方法是可以應用於成型出 201125719 近視鏡片、老化鏡片’或太陽眼鏡鏡片等類型的偏光鏡片 〇 參閱圖3’該偏光膜備製步驟41是以一壓彎模且5進 行，該壓彎模具5包含一第三固定模座5丨、一可分離地對 應設置於該第三固定模座51上的第三活動模座52，及一用 以加壓該第三活動模座52的第三加壓單元53。.將該一平板 狀偏光膜6置於該第三固定模座51與第三活動模座52之 間，並以該第三加壓單元53加壓而將該偏光膜6壓彎。 參閱圖4、5，壓彎後的偏光膜6具有一圓弧部61，及 一由該圓弧部61周緣向外延伸的平板部62。於本實施例中 ’該偏光膜6的厚度疋介於〇.28〜〇.8mm之間。另外，要說 明的是，若該偏光膜6的基弧小，可以省略該偏光膜備製 步驟41 ’直接進入該裁切沖孔步驟42。 參閱圖6，該裁切沖孔步驟42是以一裁切沖孔模具7 進行，該裁切沖孔模具7包含一第二固定模座71、一可分 離地對應設置於該第二固定模座71上的第二活動模座72, 及一用以加壓該第二活動模座72的第二加壓單元乃。將壓 彎後之偏光膜6置於該第二固定模座71與第二活動模座72 之間’並以該第二加壓單元73加壓。 參閱圖7、8，透過上述步驟將該偏光膜6之平板部62 的四個角落分別沖壓有四個定位63,同時將該偏光膜6 的平板部62裁切成適當大小； 參閱圖9,該偏光膜定位步驟43是以一成型模具8對 該偏光膜6用料行加卫作業，該成龍纟8包含-第一 201125719 固定模座81 ' —對應設置於該第一固定模座81上的第一活 動模座82，及-用以加壓該第—活動模座82的第—加麼單 兀83，其中，該第一固定模座81包括一個本體8ιι、一個 由該本體811表面凹陷而對應該偏光膜6之圓弧部61的第 -凹陷部812’及四個由該本體811表面突伸的固定針叫 因視角的關係只顯示兩個)，而該第一活動模座82包括一個 對應於該第一凹陷部812的第一凸出部821，該偏光膜石是 以所述定位孔63(見圖8)定位於所述固定針813上而定位 於該第一凹陷部812中。 要特別說明的是，所述定位孔63與固定針813的數量 只是本實施例的實施態樣，不以此為限。另外，該成型模 具8可以是各種立式或臥式射出機，不以此為限。 參閱圖10,該閉模進料步驟44是該偏光膜6定位完成 後，將該第一固定模座81與該第一活動模座82蓋合而 蓋合後由該第一固定模座81的第一凹陷部812與該第一活 動模座82的第-凸“ 821共同界定出—個模腔84，並對 該模腔84進行塑膠材料的進料填充作業，使塑膠材料是填 充於該模腔84中而於該偏錢6上形成—強化層％，再由 該第-加壓單元83進行壓縮鎖模功能，使該偏光臈6與該 強化層90形成-偏光鏡片9卜於本實施例中，是以聚碳酸 醋（Polycarbonate，PC)作為塑膠材料，而於該閉模進料步驟 44中是可以成型出各種厚度的偏光鏡片91。 參閱圖U，該修邊步驟45是將上述步驟所成型出的偏 光鏡片91依所需要的規格進行修邊，而形成偏光鏡片成品 201125719 由於偏光膜6的設計是要讓偏射的反光消除，來有效 地過濾反射光與眩光，而得到較好的視覺效果，但是一般 經由聚碳酸酯成型的強化層9〇，其結構不穩定，稍微受力 就容易在内部產生相對内應力’ &内應力會產生偏光效應 ，而扭曲光線前進的光軸，導致與該強化層9〇結合之偏光 膜6的偏光效果完全消失。因此藉由所述固定針813來定 位拉伸該偏光膜6,可以有效避免該偏光膜6在該閉模進料 步驟44中有位移、皺摺，及内應力的產生；透過該第一加 壓單元83進行壓縮鎖模功能，使得該強化層9〇的質地可 以更為穩疋、i句勻’不易因為受力就在内部產生相對内應 力，來讓内應力作用更小，並且使得該強化層9〇與偏光膜 6之間結合的緊密度更高’進而有效提升該偏光鏡片的 品質。 紅上所述，本發明偏光鏡片的成型方法，藉由所述固 疋針813來疋位拉伸該偏光膜6，可以有效避免該偏光膜6 在該閉模進料步驟44中有位移、敵摺，及内應力的產生； 而該第加壓單元83的壓縮鎖模功能使得該強化層 可以更為均勻，並讓該強化層9〇與偏光膜6之間結合的緊 达义更尚進而&升6玄偏光鏡片91的品質，故確實能達成 本發明之目的。 准以上所述者，僅為本發明之較佳實施例而已，當不 月b以此限疋本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾皆仍 201125719 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一實施步驟流程圖，說明習知公告第M3 5002 7 號新型專利案所揭露的「鏡片強化結構」中所揭露的鏡片 成型方法； 圖2疋一方塊流程圖，說明本發明偏光鏡片的成型方 法之較佳實施例；a mold closing feeding step of closing the first fixing mold base and the first movable mold base to cover the first concave portion of the first fixed mold base and the first convex portion of the first movable mold base The common part of the cavity is a common cavity, and the filling operation of the plastic material is performed on the cavity, so that a strengthening layer is formed on the polarizing film in the molding cavity, and then the compression clamping function is performed by the two true=疋. The polarizing film and the reinforcing layer are formed into a polarizing lens. The effect of the invention is that the stretching of the polarizing film by the fixing needle can effectively avoid displacement, wrinkles and internal stress of the polarizing film in the closed mold feeding step; and the pressing The compression clamping function of the unit makes the strengthening layer more uniform and makes the bonding between the strengthening layer and the polarizing film more compact, thereby improving the quality of the polarizing lens. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. Referring to FIG. 2, a preferred embodiment of the method for forming a polarizing lens of the present invention comprises a polarizing film preparation step 41, a cutting and punching step 42, a polarizing film positioning step 43, a closed mold feeding step 44, and A trimming step 45. The first thing to explain is that 'the polarizing lens can be used to form a polarized lens such as a 201125719 myopic lens, an aging lens' or a sunglasses lens. Referring to Figure 3, the polarizing film preparation step 41 is a pressure. The bending die 5 is formed by a third fixed die holder 5, a third movable mold base 52 detachably correspondingly disposed on the third fixed mold base 51, and a pressurizing mold 52 The third pressurizing unit 53 of the third movable mold base 52. The flat polarizing film 6 is placed between the third fixed mold base 51 and the third movable mold base 52, and is pressed by the third pressurizing unit 53 to bend the polarizing film 6. Referring to Figures 4 and 5, the deflected polarizing film 6 has a circular arc portion 61 and a flat plate portion 62 extending outward from the peripheral edge of the circular arc portion 61. In the present embodiment, the thickness 疋 of the polarizing film 6 is between 〇.28 and 〇.8 mm. Further, it is to be noted that if the base arc of the polarizing film 6 is small, the polarizing film preparing step 41' can be omitted directly into the cutting punching step 42. Referring to FIG. 6, the cutting and punching step 42 is performed by a cutting punching die 7, which comprises a second fixing die holder 71, and a detachably correspondingly disposed on the second fixing die. a second movable mold base 72 on the seat 71, and a second pressurizing unit for pressurizing the second movable mold base 72. The pressed polarizing film 6 is placed between the second fixed die holder 71 and the second movable die holder 72 and pressurized by the second pressing unit 73. Referring to FIGS. 7 and 8, through the above steps, the four corners of the flat portion 62 of the polarizing film 6 are respectively stamped with four positions 63, and the flat portion 62 of the polarizing film 6 is cut into an appropriate size; The polarizing film positioning step 43 is a processing operation of the polarizing film 6 by a molding die 8 including a first 201125719 fixed die holder 81'-correspondingly disposed on the first fixed die holder 81. a first movable mold base 82, and a first-loading unit 83 for pressurizing the first movable mold base 82, wherein the first fixed mold base 81 includes a body 8 ιι and a surface of the body 811 The recessed portion corresponding to the first recessed portion 812' of the arc portion 61 of the polarizing film 6 and the four fixed pins protruding from the surface of the body 811 are only shown by the relationship of the viewing angle, and the first movable mold base is shown. 82 includes a first protrusion 821 corresponding to the first recess 812, and the polarizing film is positioned on the fixing pin 813 by the positioning hole 63 (see FIG. 8) and positioned in the first recess. In section 812. It is to be noted that the number of the positioning holes 63 and the fixing pins 813 is only an embodiment of the embodiment, and is not limited thereto. Further, the molding die 8 may be various vertical or horizontal injection machines, and is not limited thereto. Referring to FIG. 10, the mold closing feeding step 44 is performed after the positioning of the polarizing film 6 is completed, and the first fixed mold base 81 is covered with the first movable mold base 82 to be covered by the first fixed mold base 81. The first recessed portion 812 and the first convex portion 821 of the first movable mold base 82 define a cavity 84, and the mold cavity 84 is filled with a plastic material to fill the plastic material. In the cavity 84, a reinforcing layer % is formed on the partial money 6, and the first clamping unit 83 performs a compression clamping function to form the polarizing beam 6 and the reinforcing layer 90. In this embodiment, polycarbonate (PC) is used as the plastic material, and in the mold closing feeding step 44, polarizing lenses 91 of various thicknesses can be formed. Referring to FIG. U, the trimming step 45 is The polarizing lens 91 formed in the above step is trimmed according to the required specifications to form a polarized lens finished product 201125719. Since the polarizing film 6 is designed to eliminate the reflection of the polarized light, the reflected light and the glare are effectively filtered. Get better visual effects, but generally via polycarbonate The formed reinforcing layer 9〇 is unstable in structure, and it is easy to generate relative internal stress inside by a little force. & Internal stress generates a polarizing effect, and the optical axis that distort the light advances, resulting in bonding with the reinforcing layer 9〇. The polarizing effect of the polarizing film 6 is completely lost. Therefore, by positioning and stretching the polarizing film 6 by the fixing pin 813, the polarizing film 6 can be effectively prevented from being displaced, wrinkled, and inner in the mold closing feeding step 44. The generation of stress; the compression clamping function is performed by the first pressing unit 83, so that the texture of the reinforcing layer 9〇 can be more stable, and the sentence is evenly “not easy to generate relative internal stress due to the force, so that The effect of the internal stress is smaller, and the tightness of the bonding between the reinforcing layer 9〇 and the polarizing film 6 is higher', thereby effectively improving the quality of the polarizing lens. The red forming method of the polarizing lens of the present invention is described by The fixing pin 813 is used to clamp the polarizing film 6 to effectively prevent displacement, entrapment, and internal stress of the polarizing film 6 in the mold closing feeding step 44; and the first pressing unit Compression mode locking of 83 The reinforcing layer can be made more uniform, and the bonding between the reinforcing layer 9 〇 and the polarizing film 6 is further improved, and the quality of the sinusoidal polarizing lens 91 is improved, so that the object of the present invention can be achieved. The above is only the preferred embodiment of the present invention, and is not limited to the scope of the present invention, that is, the simple equivalent of the scope of the patent application and the description of the invention. The changes and modifications are still in the scope of the present invention. The following is a description of the process of the present invention. FIG. 1 is a flow chart showing the implementation of the "lens-reinforced structure" disclosed in the new patent application No. M3 5002-7. The lens forming method disclosed in the present invention; FIG. 2 is a block diagram showing a preferred embodiment of the method for forming a polarizing lens of the present invention;
圖3疋一實施步驟流程圖，輔助說明該較佳實施例的 偏光膜備製步驟； 圖4是一側視圖，說明壓彎後的偏光膜，· 圖5疋-俯視圖，由另一角度辅助說明壓彎後的偏光 圖6是一實施步驟流程圖 裁切沖孔步驟； ’輔助說明該較佳實施例的 疋曰側視圖，說明裁切沖孔後的偏光膜；Figure 3 is a flow chart showing the steps of the implementation of the polarizing film of the preferred embodiment; Figure 4 is a side view showing the polarizing film after bending, Fig. 5 - top view, assisted by another angle FIG. 6 is a cross-sectional view of the flow chart after the bending; FIG. 6 is a side view of the punching step of the embodiment; FIG. 2 is a side view showing the polarizing film after cutting and punching;
偏光膜；K Μ視圖由另—角度輔助說明裁切沖孔後的 輔助說明該較佳實施例的 接續圖9並輔助說明該較 輔助說明該較佳實施例的 圖9疋—實施步驟流程圖 偏光膜定位步驟； ® 1〇是—實施步驟流程圖 佳實施例的閉模進料步驟；及 圖 11 县 盘 疋—貫施步驟流裎圖 修邊步驟。 201125719 【主要元件符號說明】 41 偏光膜備製步驟 72 第二活動模座 42 裁切沖孔步驟 73 第二加壓單元 43 偏光膜定位步驟 8 成型模具 44 閉模進料步驟 81 第一固定模座 45 修邊步驟 811 本體 5 壓彎模具 812 第一凹陷部 51 第三固定模座 813 固定針 52 第三活動模座 82 第一活動模座 53 第三加壓單元 821 第一凸出部 6 偏光膜 83 第一加壓單元 61 圓弧部 84 模腔 62 平板部 90 強化層 63 定位孔 91 偏光鏡片 7 裁切沖孔模具 92 偏光鏡片成品 71 第二固定模座 10Polarized film; K Μ view is explained by another angle-assisted explanation after cutting and punching. The continuation of FIG. 9 of the preferred embodiment and the accompanying description of the preferred embodiment of the preferred embodiment of FIG. Polarizing film positioning step; ® 1〇 is the implementation step of the flow chart of the preferred embodiment of the closed mold feeding step; and Figure 11 county plate - the implementation of the step flow diagram trimming step. 201125719 [Description of main component symbols] 41 Polarizing film preparation step 72 Second movable mold base 42 Cutting and punching step 73 Second pressing unit 43 Polarizing film positioning step 8 Molding mold 44 Closed mold feeding step 81 First fixed mold Seat 45 Trimming step 811 Main body 5 Pressing die 812 First recessed portion 51 Third fixed die holder 813 Fixed pin 52 Third movable die holder 82 First movable die holder 53 Third pressing unit 821 First protruding portion 6 Polarizing film 83 First pressing unit 61 Arc portion 84 Cavity 62 Flat portion 90 Strengthening layer 63 Positioning hole 91 Polarizing lens 7 Cutting punching mold 92 Polarized lens finished product 71 Second fixed mold base 10