200914246 九、發明說明： 【發明所屬之技術領域】 ' 本發明涉及一種注塑模具。 •【先前技術】 隨著技術之發展’注塑成型技術以其優良之特性逐漸 進入光學領域。為了降低製造成本，使用塑膠製成之光學 鏡片代替傳統之玻璃光學鏡片得到廣泛之應用。有關光學 鏡片之設計方法請參閱Chao等人2000年於IEEE Ultrasonics Symposium 上發表之論文 Aspheric lens 。 塑膠光學鏡片一般採用注塑成型技術製造，其步驟包 括··將注塑模具安裝於成型機上，控制壓力和溫度，將塑 膠注入模具内，冷卻塑膠使其固化成型，開模並將鏡片半 成品與凝料相分離。 惟，現有對鏡片半成品與凝料之分離通常是採用手工 處理方式’即藉由人手操作使鏡片半成品與凝料發生相對 運動而彼此分離，其效率較低，且需消耗大量之操作 不適於工業生產。 、、曰 【發明内容】 有#於此’提供-種可㈣模之同時分離鏡片半成品 一滅料之注塑模具實為必要。 下面將以實施例說明一種注塑模呈，1 具進㈣模之同時實現將鏡片半成品與凝料相分離塑模 -種注㈣具，其可於㈣之㈣ 凝料，該凝料由相貫通之一主* 、兄片+成扣與 彼運、複數分流道、複數潦 5 200914246 口及一冷料穴内冷卻固化後之塑膠所形成，該注塑模具包 括一定模座板、一定模板、一支承板、複數母模仁、複數 分別與該複數母模仁相適配之公模仁，以及一剪切塊；爷 定模板固連於該定模座板，該支承板與該定模座板相對= 置；該每一母模仁包括一成型部，該成型部與該公模仁ς 1 己合形成一用於成型鏡片半成品之型腔，且該成型部彈性 设置於該定模座板與該公模仁之間以於開模時由該母模仁 指向該公模仁之第一方向對鏡片半成品進行抵觸；該剪切 塊包括一接合部，該接合部彈性設置於該定模板與該支承 板之間以於開模時由該剪切塊指向該定模板之第二方向對 該凝料進行抵觸，該第二方向與該第一方向相反，進而可 使該鏡片半成品與該凝料產生相對運動而彼此分離。 相對於先前技術，該注塑模具藉由於定模座板與公模 仁之間彈性設置母模仁，以及於定模板與支承板之間彈性 «又置與切塊，以使母模仁與剪切塊於開模時從相反之兩個 方向分別對鏡片半成品及凝料進行抵觸，進而使鏡片半成 m 〃、凝料產生相對運動並彼此分離，從而減免了利用人手 操作將鏡片半成品與凝料分離之工序，提高了鏡片半成品 之生產率。 【實施方式】 下面將結合附圖對本發明實施例作進一步之詳细 日月。 ' 月，閱圖1，本發明第一實施例提供之一種注塑模具 10 ’其可於開模之同時分離鏡片半成品20與凝料3〇。該注 200914246 塑楔具10包括一定模座板12、一定模板n、一支承板13、 複數母模仁17、複數分別錢數母社17相適配之公模仁 18、以及一剪切塊14。該鏡片半成品2〇包括一上表面及一 下表面，該凝料30由相貫通之主流道30a、複數分流道 3〇b複數也口 3〇c及一冷料穴3〇d内冷卻固化後之塑膠所 構成。 該定模板11固連於該定模座板12上，該支承板13與 該定模座板12相對設置。 请-併參關2 ’該母模仁17包括—成型部i7i，該 成型部m彈性設置於該定模座板12與該公模仁18之間。 ㈣地，可藉由設置複數第—彈性元件15，如彈簧、墊片 等亚使該第-彈性兀件15之兩端分別彈性抵觸住該定模 座板12及該母模仁17之成型部m，以達錢該成型部 171於開板時對鏡片半成品2〇進行抵觸之目的。優選地， 該母模仁17之成型部171可進-步延伸出-頂壓部172, 該定模座板！2可對應開設複數與該職部Μ相適配之第 -導向孔121’ II由將㈣—彈性元件15套設於該母模仁 17之頂壓部172，並將該頂壓部⑺滑動設置於該第」導 向孔m内’可增強該第—彈性元件^對該母模仁口之 成型部171進行彈性抵觸時 ^ 171 才又祕疋性。進一步地，該成型 成有—用於成型鏡片半成品2()上表 面1710。 弟成型 成型=:8安裝於該支承板13上，其形成有一用於 成在鏡片半成口口 2〇下表^面之當—丄、 卜表面之弟一成型面1810、及—圍繞於 200914246 該第二成型面1810周邊之第一接合面1820，該母模仁17 之第一成型面1710與該公模仁18之第二成型面1810之間 形成一用於成型鏡片半成品20之型腔200。 '請一併參閱圖1及圖3，該剪切塊14包括一接合部 141，該接合部141彈性設置於該定模板11與該支承板13 之間，具體地，可藉由設置一第二彈性元件16，如彈簧、 墊片等，並使該第二彈性元件16之兩端分別彈性抵觸住該 支承板13及該剪切塊14之接合部141，以達成使該接合部 141於開模時對凝料30進行抵觸之目的。優選地，該剪切 塊14之接合部141可進一步延伸出一支撐桿142，該支承 板13可對應開設一與該接合部141相適配之第二導向孔 131，藉由將該第二彈性元件16套設於該剪切塊14之支撐 桿142，並將該支撐桿142滑動設置於該第二導向孔131 内，可增強該第二彈性元件16對該剪切塊14之接合部141 進行彈性抵觸時之穩定性。該剪切塊14之接合部141包括 一第二接合面1410,且其與該定模板11相配合形成複數分 流道30b及一冷料穴30d，進一步地，該接合部141分別與 複數公模仁18相鄰接並相互配合形成複數澆口 30c。 可理解，該注塑模具10可進一步包括一固連於該支承 板13上之動模板19,該動模板19與該定模板11形成一分 型面190。另，該注塑模具10還可包括一主流道襯套21， 該主流道襯套21内形成該主流道30a，該定模座板12及該 定模座11分別相應開設有與該主流道襯21套相適配之一 第一收容孔122,及一第二收容孔110以收容該主流道襯套 8 200914246 21。注塑時，處於融化狀態之塑膠依次流經該主流道30a、 該複數分流道30b及該複數澆口 3〇c後注入該型腔2〇〇，從 而可成型該鏡片半成品2〇。 —當該注塑模具10合模時，該複數第一彈性元件Μ及 該第二彈性元件16分別處於壓縮狀態，該第一彈性元件15 子〜母模仁17之成型部171具有一第一彈性力N1，該第 一彈性力m由母模仁17指向公模仁18之第一方向作用於 2模仁17上，從而使母模仁17壓向公模仁18形成模壓狀 態丄該第二彈性元件16對該剪切塊14之接合部ΐ4ι具有 -第二彈性力N2，該第二彈性力犯由剪切塊⑷旨向定模 — 之第一方向作用於匆切塊上，從而使剪切塊14壓向 ，模板11並形成壓緊狀態。具體地，該母模仁17之成型 L 1抵*於4公&仁18之第—接合面182G而保持模麗 狀:’該剪切塊14之接合部141藉由其第二接合面咖 抵罪於錢模板Η而保持產緊狀態，該第—彈性力犯盘 該第二彈性力Ν2方向相反。 /、 一印參閱圖4，開模時，注塑模具10沿圖4中箭頭ί J :示之方向分型，該定模座板12及定模板u保持不動， Λ19、支承板13及安裝於支承板13上之複數公模 /口過離該定模座板12及定模板n之—側移動。 :理解’當該公模仁18沿遠離定模座板12及定模板 “向移動時，該公模仁18與該母模仁17不再抵 :母成型部171將由第一方向抵觸住鏡片半成品 、，該剪切塊14之接合部141將由第二方向抵觸住 200914246 方向與該第 30將產生 凝料3 0 ’以使該凝料3 〇保持不動，由於該第一 二方向方向相反，故該鏡片半成品2〇與該凝料 相對運動而彼此分離。 請參閱圖5，本發明第二實施例提供之 其與本發明第-實施例提供之注塑模# iq之 於·該注塑模具50進-步包括複數分別與該複數母模仁^ 之頂麗部172相固連之第—止動元件22，及—與該剪切塊 、—之支撐桿Χ42相固連之第二止動元件24 ;相對應地，該 複數第-導向孔121及該第二導向孔131分別設置為階梯 孔，該複數第-止動元件22及該第二止動元件24分別收 容並滑動設置於該複數第一導向孔121及該第二導向孔 31内進而可分別抵靠於該複數第一導向孔丄。之複數第 一抵靠面1210及該第二導向孔131之第二抵靠面131〇。 請一併參閱圖6，由於該鏡片半成品2〇與該凝料3〇 彼此分離後，該第—彈性元件15對該母模仁17之成型部 171繼縯具有由母模仁17指向公模仁18之彈性力，因此， 該母模仁17於該彈性力之作用下將繼續朝接近該公模仁 18之方向運動，當該母模仁17運動至與公模仁18相抵觸 k，其容易與該公模仁18相碰撞而彼此破損。故，藉由設 置該複數第一止動元件22，以及將該複數第一導向孔121 刀別没置為階梯孔，可使該第一止動元件22隨該頂壓部 172移動並抵靠於該第一導向孔之第一抵靠面ι2ι〇， k而對該母模仁17起止動作用’以防止該母模仁17進一 步朝接近該公模仁18之方向運動並與該公模仁18相碰撞 200914246 .而破損。 明進一步參閱圖7 ’該鏡片半成品20與凝料3〇相分離 後，可進一步朝遠離該定模板U之方向移動該支承板， 使該第—止動元件24抵靠於該第二導向孔之第二抵靠 面1310並隨該支承板13 一起移動，從而可藉由該第二止 動元件24拉動該剪切塊w及固化成形於該剪切塊14上之 凝料30隨該支承板13 一起移動，以將該凝料從該主流 道襯套21中脫出。 ^200914246 IX. Description of the invention: [Technical field to which the invention pertains] ' The present invention relates to an injection mold. • [Prior Art] With the development of technology, injection molding technology has gradually entered the field of optics with its excellent characteristics. In order to reduce manufacturing costs, optical lenses made of plastic have been widely used in place of conventional glass optical lenses. For the design method of optical lenses, please refer to the paper Aspheric lens published by Chao et al. in IEEE Ultrasonics Symposium in 2000. Plastic optical lenses are generally manufactured by injection molding technology. The steps include: · Mounting the injection mold on the molding machine, controlling the pressure and temperature, injecting the plastic into the mold, cooling the plastic to solidify it, opening the mold and splicing the lens semi-finished product. The phase of the material is separated. However, the existing separation of the lens semi-finished product and the aggregate is usually performed by manual processing, that is, the manual operation of the lens semi-finished product and the floc is separated by the manual operation, and the efficiency is low, and the operation is not suitable for industrial use. produce. , 曰 【Contents of the Invention 】 There is # here to provide - can be (four) mold at the same time separate lens semi-finished products, a material injection mold is necessary. In the following, an injection mold will be described by way of example. One (4) mold is used to separate the lens semi-finished product from the aggregate. The plastic injection mold can be used in (4) (4) Condensate. One of the main *, the brothers + the buckle and the other, the split runner, the plural 潦 5 200914246 mouth and a cold material in the cooling hole formed by the plastic, the injection mold includes a certain mold plate, a certain template, a support a plate, a plurality of female molds, a plurality of male molds respectively adapted to the plurality of female molds, and a shearing block; the fixed template is fixed to the fixed mold seat plate, the support plate and the fixed mold seat plate The female mold core includes a molding portion, and the molding portion and the male mold core 1 are combined to form a cavity for molding the lens semi-finished product, and the molding portion is elastically disposed on the fixed mold base plate Intersecting the semi-finished product with the male mold core in a first direction from the female mold core to the male mold core when the mold is opened; the shearing block includes a joint portion, and the joint portion is elastically disposed on the fixed mold and the mold Between the support plates, the cutting block is directed to the fixed portion when the mold is opened. Direction of the second plate of the slug for conflict, the second direction opposite to the first direction, and further so that the lens may be semi-finished product with the slug to produce relative movement separated from each other. Compared with the prior art, the injection mold is configured by elastically setting the female mold core between the fixed mold base plate and the male mold core, and the elastic between the fixed mold plate and the support plate to be placed and cut to make the female mold core and cut. When the block is opened, the lens semi-finished product and the aggregate are respectively interfered from the opposite directions, so that the lens is half-m成, the aggregates are relatively moved and separated from each other, thereby eliminating the use of manual operation to treat the lens semi-finished product and the aggregate. The separation process increases the productivity of the lens semi-finished product. [Embodiment] Hereinafter, embodiments of the present invention will be further described in detail with reference to the accompanying drawings. 'Monthly, referring to Fig. 1, an injection mold 10' provided by the first embodiment of the present invention can separate the lens blank 20 and the aggregate 3 于 while opening the mold. The note 200914246 plastic wedge 10 includes a certain die plate 12, a certain template n, a support plate 13, a plurality of female molds 17, a plurality of male molds 18 matched with a plurality of money, and a cutout 14. The lens semi-finished product 2 includes an upper surface and a lower surface, and the aggregate 30 is cooled and solidified by the main flow passage 30a, the plurality of branch passages 3〇b, the plurality of ports 3〇c, and a cold material hole 3〇d. Made up of plastic. The fixed platen 11 is fixed to the fixed die plate 12, and the support plate 13 is disposed opposite to the fixed die plate 12. The parent mold member 17 includes a molding portion i7i that is elastically disposed between the fixed mold base plate 12 and the male mold core 18. (4) Ground, by providing a plurality of first elastic members 15, such as springs, washers, etc., the two ends of the first elastic member 15 are elastically resisted to form the fixed mold base plate 12 and the female mold core 17 respectively. In the part m, the molded part 171 is in contact with the lens blank 2 at the time of opening the plate. Preferably, the forming portion 171 of the female mold core 17 can be further extended to the top pressing portion 172, the fixed mold seat plate! 2, corresponding to the opening of the plurality of first guiding holes 121' II corresponding to the job portion, the (four) - elastic member 15 is sleeved on the pressing portion 172 of the female mold core 17, and the pressing portion (7) is slid Provided in the first "guide hole m" can enhance the flexibility of the first elastic member to elastically resist the molded portion 171 of the female die. Further, the molding is formed to form the upper surface 1710 of the lens blank 2 (). Forming molding =: 8 is mounted on the support plate 13, and is formed with a molding surface 1810 for forming a surface of the lens, and a surface of the surface of the lens. 200914246 The first joint surface 1820 around the second molding surface 1810, the first molding surface 1710 of the female mold core 17 and the second molding surface 1810 of the male mold core 18 form a type for molding the lens blank 20 Cavity 200. Referring to FIG. 1 and FIG. 3 together, the cutout 14 includes a joint portion 141. The joint portion 141 is elastically disposed between the fixed platen 11 and the support plate 13. Specifically, The two elastic members 16, such as springs, washers, and the like, and the two ends of the second elastic member 16 are respectively elastically abutted against the joint portion 141 of the support plate 13 and the cutout block 14 to achieve the joint portion 141 The aggregate 30 is resistant to the purpose of opening the mold. Preferably, the engaging portion 141 of the cutout 14 can further extend out of a supporting rod 142. The supporting plate 13 can correspondingly define a second guiding hole 131 corresponding to the engaging portion 141. The elastic member 16 is sleeved on the support rod 142 of the cutout 14 and the support rod 142 is slidably disposed in the second guiding hole 131 to enhance the joint portion of the second elastic member 16 with the cutout 14 141 Stability when subjected to elastic resistance. The joint portion 141 of the shearing block 14 includes a second joint surface 1410, and cooperates with the fixed platen 11 to form a plurality of split runners 30b and a cold pocket 30d. Further, the joint portion 141 and the plurality of male molds respectively The ribs 18 are adjacent to each other and cooperate to form a plurality of gates 30c. It can be understood that the injection mold 10 can further include a movable die plate 19 fixed to the support plate 13, and the movable die plate 19 forms a parting surface 190 with the fixed die plate 11. In addition, the injection mold 10 can further include a main channel bushing 21, the main channel 30a is formed in the main channel bushing 21. The fixed mold base plate 12 and the fixed mold base 11 are respectively respectively provided with the main guide bushing. The 21 sets are adapted to receive one of the first receiving holes 122 and the second receiving hole 110 to receive the main channel bushing 8 200914246 21 . At the time of injection molding, the plastic in the molten state flows through the main flow path 30a, the plurality of divided flow paths 30b, and the plurality of gates 3〇c, and then injected into the cavity 2, so that the lens blank 2 can be formed. - when the injection mold 10 is clamped, the plurality of first elastic members Μ and the second elastic member 16 are respectively in a compressed state, and the molded portion 171 of the first elastic member 15 to the female mold core 17 has a first elasticity The force N1, the first elastic force m acts on the 2 mold core 17 from the first direction of the male mold core 17 to the male mold core 18, thereby pressing the female mold core 17 against the male mold core 18 to form a molded state. The elastic member 16 has a second elastic force N2 to the joint portion 对该4ι of the shearing block 14, and the second elastic force acts on the slashing block in the first direction of the cutting block (4). The cutting block 14 is pressed toward the template 11 and forms a pressed state. Specifically, the shape L 1 of the female mold core 17 is maintained at the first joint surface 182G of the 4 male & 18 to maintain the mold shape: 'the joint portion 141 of the shear block 14 is supported by the second joint surface thereof The coffee is sinned against the money template and remains in a tight state, and the first elastic force smashes the second elastic force Ν2 in the opposite direction. Referring to FIG. 4, when the mold is opened, the injection mold 10 is divided along the direction indicated by the arrow ί J in FIG. 4, and the fixed mold plate 12 and the fixed plate u are kept stationary, and the support plate 13 and the support plate 13 are mounted on The plurality of male molds/ports on the support plate 13 move away from the side of the fixed mold base plate 12 and the fixed die plate n. : Understand that when the male mold 18 moves away from the fixed mold plate 12 and the fixed template, the male mold 18 and the female mold 17 are no longer resisted: the female molded portion 171 will be in contact with the lens by the first direction The semi-finished product, the joint portion 141 of the shearing block 14 will be in contact with the 200914246 direction by the second direction and the third 30 will produce the aggregate 3 0 ' to keep the aggregate 3 不 stationary, since the first two directions are opposite, Therefore, the lens semi-finished product 2〇 is separated from the aggregate material and separated from each other. Referring to FIG. 5, the second embodiment of the present invention and the injection mold provided by the first embodiment of the present invention are provided in the injection mold 50. The step-by-step includes a plurality of first stop elements 22 respectively fixed to the top portion 172 of the plurality of mother molds, and a second stop fixed to the support rods 42 of the shear blocks Correspondingly, the plurality of first guiding holes 121 and the second guiding holes 131 are respectively arranged as stepped holes, and the plurality of first stopping elements 22 and the second stopping elements 24 are respectively received and slidably disposed on the The plurality of first guiding holes 121 and the second guiding holes 31 can respectively abut the same a plurality of first guiding holes 之. The plurality of first abutting faces 1210 and the second abutting faces 131 of the second guiding holes 131. Please refer to FIG. 6 together, because the lens semi-finished product 2〇 and the condensing material 3〇 After being separated from each other, the first elastic member 15 performs the elastic force of the molding portion 171 of the female mold core 17 with the male mold core 17 pointing toward the male mold core 18, and therefore, the female mold core 17 acts on the elastic force. The movement will continue in the direction of approaching the male mold member 18, and when the female mold member 17 moves to interfere with the male mold core 18, it easily collides with the male mold core 18 and breaks each other. Therefore, by setting The plurality of first stopping elements 22 and the plurality of first guiding holes 121 are not set as stepped holes, so that the first stopping element 22 can move with the pressing portion 172 and abut against the first guiding The first hole of the hole abuts the surface ι2ι〇, k and acts to stop the female die 17 to prevent the female die 17 from moving further toward the male die 18 and colliding with the male die 18 200914246 And the damage is further. Referring to Figure 7 'the lens semi-finished product 20 is separated from the aggregate 3〇, it can be further Moving the support plate away from the direction of the fixed template U, so that the first stop element 24 abuts against the second abutting surface 1310 of the second guiding hole and moves together with the supporting plate 13, so that the first The two retaining members 24 pull the shearing block w and the solidified material 30 solidified on the shearing block 14 moves together with the supporting plate 13 to release the aggregate from the main channel bushing 21.
本發明實施例提供之注塑模具1G、5G，其藉由於定模 座板12與公模仁18之間彈性設置母模仁17，以及於定模 板11與支承板13之間彈性設置剪切塊14，以使母模仁Η 與剪切塊14於開模時從相反之兩個方向分別對鏡片半成品 20及凝料30進行抵觸，進而使鏡片半成品2〇與凝料二 產生相對運動並彼此分離，從而減免了利用人手操作將鏡 片半成品20與凝料3〇分離之工序，提高了鏡片半成品^ 之生產率。 綜上所述，本發明確已符合發明專利之要件， :出：利：請。惟’以上所述者僅為本發明之較佳實：方 工’自不μ此限制本案之申請專利範圍。舉凡孰 技藝，人士援依本發明之精神所作之等效修飾或變二，= 應涵蓋於以下申請專利範圍内。 白 【圖式簡單說明】 圖1 面示意圖 係本發明第一 實施例提供之注塑模具合模時之剖 11 200914246 圖2係本發明第一實施例提供之注塑模具之母模仁與 公模仁相配合之結構示意圖。 圖3係本發明第一實施例提供之注塑模具之剪切塊之 結構示意圖。 圖4係本發明第一實施例提供之注塑模具開模時之剖 面示意圖。 圖5係本發明第二實施例提供之注塑模具合模時之剖 面示意圖。 圖6係本發明第二實施例提供之注塑模具開模時之剖 面示意圖。 圖7係利用本發明第二實施例提供之注塑模具將凝料 從主流道襯套中脫出之剖面示意圖。 【主要元件符號說明】 注塑模具 10、50 鏡片半成品 20 定模板 11 主流道襯套 21 定模座板 12 第一止動元件 22 支承板 13 第二止動元件 24 剪切塊 14 型腔 200 第一彈性元件 15 凝料 30 第二彈性元件 16 主流道 30a 母模仁 17 分流道 30b 公模仁 18 澆口 30c 動模板 19 冷料穴 30d 第二收容孔 110 第一導向孔 121 12 200914246 第一收容孔 122 第二導向孔 131 接合部 141 支撐桿 142 成型部 171 頂壓部 172 分型面 190 第二彈性力 N2 第一抵靠面 1210 第二抵靠面 1310 第二接合面 1410 第一成型面 1710 第二成型面 1810 第一接合面 1820 第一彈性力 N1 13The injection molds 1G and 5G provided by the embodiments of the present invention are provided by elastically setting the female mold core 17 between the fixed mold base plate 12 and the male mold core 18, and elastically setting the shearing block between the fixed mold plate 11 and the support plate 13 14. The mother mold core and the shearing block 14 respectively interfere with the lens blank 20 and the aggregate 30 from the opposite directions when the mold is opened, thereby causing the lens blank 2 and the aggregate 2 to move relative to each other and to each other. The separation eliminates the process of separating the lens blank 20 from the condensate 3 by manual operation, thereby improving the productivity of the lens semi-finished product. In summary, the present invention has indeed met the requirements of the invention patent, : out: profit: please. However, the above description is only the preferred embodiment of the present invention: the invention does not limit the scope of the patent application in this case. Equivalent modifications or variations made by a person in accordance with the spirit of the present invention shall be covered by the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing the injection mold of the first embodiment of the present invention. FIG. 2 is a schematic diagram of a female mold and a male mold of an injection mold according to a first embodiment of the present invention. A schematic diagram of the structure. Fig. 3 is a schematic view showing the structure of a shearing block of an injection mold according to a first embodiment of the present invention. Fig. 4 is a schematic cross-sectional view showing the injection mold provided in the first embodiment of the present invention when the mold is opened. Fig. 5 is a schematic cross-sectional view showing the injection mold of the second embodiment of the present invention when it is clamped. Fig. 6 is a schematic cross-sectional view showing the injection mold of the second embodiment of the present invention when the mold is opened. Fig. 7 is a schematic cross-sectional view showing the use of the injection mold provided in the second embodiment of the present invention to remove the aggregate from the main channel bushing. [Main component symbol description] Injection mold 10, 50 Lens semi-finished product 20 Fixed template 11 Main channel bushing 21 Fixed mold seat plate 12 First stop element 22 Support plate 13 Second stop element 24 Shear block 14 Cavity 200 An elastic element 15 agglomerate 30 a second elastic element 16 a main flow channel 30a a female mold core 17 a flow channel 30b a male mold core 18 a gate 30c a movable template 19 a cold pocket 30d a second receiving hole 110 a first guiding hole 121 12 200914246 first Receiving hole 122 Second guiding hole 131 Jointing portion 141 Supporting rod 142 Forming portion 171 Pressing portion 172 Parting surface 190 Second elastic force N2 First abutting surface 1210 Second abutting surface 1310 Second joint surface 1410 First forming Face 1710 second forming surface 1810 first joint surface 1820 first elastic force N1 13