200942398 九、發明說明： m 【發明所屬之技術領域】 本發明涉及一種模具結構，尤係涉及一種射出成型模 — 具之定位結構。 【先前技術】 目前，在電子、汽車、電機、電器、儀器、家電及通 信等產品中，70%-90%之零部件需要模具成形製造，模具 已成為工業生產之重要設備。 如圖7所示，為一種習知之射出成型模具定位結構7， 該模具定位結構7包括一上模具單元71以及與該上模具單 元71相對應之一下模具單元72。該上模具單元71包括一 上模座711、兩個上模仁712 (圖中僅示出其中一個）以及 一上固定座713,該上模座711上設有兩個定位孔715以及 兩個上模穴714,該兩個上模仁712分別由上而下裝設於該200942398 IX. Description of the invention: m [Technical field to which the invention pertains] The present invention relates to a mold structure, and more particularly to a positioning structure for an injection molding die. [Prior Art] At present, 70%-90% of parts in electronics, automobiles, motors, electrical appliances, instruments, home appliances, and communications require mold forming and manufacturing, and molds have become an important equipment for industrial production. As shown in Fig. 7, a conventional injection molding die positioning structure 7 includes an upper die unit 71 and a lower die unit 72 corresponding to the upper die unit 71. The upper mold unit 71 includes an upper mold base 711, two upper mold cores 712 (only one of which is shown), and an upper fixing base 713. The upper mold base 711 is provided with two positioning holes 715 and two. Upper mold cavity 714, the two upper mold cores 712 are respectively installed from top to bottom
模座72 1之底部， 兩個上模穴714中，該上固定座713設於該上模座7ιι之 @頂部，以用於將上槿乜71 7 1上之兩個定位孔715内，以用於將上模 722準確定位，該下固定座7汨設於該下 ，其用於將下模仁722軸向定位於下模座 6 200942398 • 721之下模穴724内。 *然而，上述定位銷725與定位孔715之結構雖然能將 上模仁712與下模仁722定位，但每一定位銷725與定位 孔715仍然會出現一定程度之錯位，約S 0.01mm左右，且 不同定位銷725與定位孔715之錯位程度與錯位方向均不 f故導致產品品質之下降，尤係在非球面光學鏡片模具 定位結構中，其對於錯位之需求必須在0.005mm以下。另 ❹外，上述模具定位結構7中，由於上模座7u、下模座721 上之其中一個模穴714、724有損傷而出現不良品時，則需 要將整個模座拆下進行修復或更換，這就導致模具定位結 構之加工成本大大增加。故，需加以改進。 【發明内容】 有鑒於此，有必要提供一種提高成型產品品質之模具 定位結構。 一種模具定位結構，包括一第一模具單元以及一第二 ❾模具單元，該第一模具單元包括一第一模座以及一第一模 仁，该第二模具單元包括一第二模座以及一第二模仁該 第模座與該第二模座貼合’該第一、第二模仁至少其中 之—上設有成型腔，該第一、第二模具單元至少其中之一 上設有澆道，該澆道與成型腔連通，該第一、第二模具單 疋還分別包括一第一、第二模仁套筒，該第一、第二模仁 套/4上均設有沿軸向延伸以分別收容第一、第二模仁之模 八，该第一模仁套筒上設有一結合槽，該第二模仁套筒上 设有一結合凸起，該結合凸起之形狀與該結合槽之形狀相 7 200942398 匹配，該結合凸起對準並結合於該結合槽内，該第一、第 二模座上均設有一安裝孔，該第一、第二模仁套筒分別可 拆卸地安裝於該第一、第二模座之安裝孔内。 一種模具定位結構，包括相互結合之兩個模具單元， 母模具單元包括一模座以及一模仁，所述模仁上設有一 成^·!^所述模具單元上設有洗道，所述洗道與所述成型 腔連通，每一模具單元還包括一模仁套筒，所述模仁套筒 上設有沿軸向延伸之一模穴，所述模仁收容於所述模穴 内，其中一模具單元之模仁套筒上設有一結合槽，另一模 具單兀之模仁套筒上設有一結合凸起，所述結合凸起之形 狀與所述結合槽之形狀相匹配，所述結合凸起對準並結合 於所述結合槽内，每一模具單元之模座上設有一安裝孔， 所述模仁套筒可拆卸地安裝於所述安裝孔内。 ❹ 上述模具定位結構中，該第二模仁套筒之結合凸起對 ，並結合於該第一模仁套筒之結合槽内，即可利用第一、 第二，仁套筒相互嵌合實現模具定位結構之準確定位，故 可提同成型產品之品質。另外，上述模具定位結構中，該 第☆第一模仁套筒其中一個上之模穴有損傷時，則只 將受損傷之模仁套筒自其對應之模座抽出更 即可，從而可降低模衫位結構之成本。U更換 【實施方式】 之模具定位結構 10以及與該上模 凊參閱圖1，為本發明一較佳實相 卜該模具定位結構1包括一上模具單 具單元1〇相對應之一下模具單元20。 8 200942398 . 請同時參閱圖2，該下模具單元20包括一下模座21、 兩個下模仁套筒22、兩個下模仁23以及-下固定座24。 該下模座21呈方塊狀，其具有一結合面211以及一安 •裝面212,該結合面211與該安裝面212相對設置，該下模 座21内設有軸向延伸之兩個安裝孔213，每個安裝孔加 為圓柱狀之通孔，其貫通下模座21之結合面2ιι與安裝面 212 亥等安裝孔213均勻分佈在該下模座21上，用以收 容相應之下模仁套筒22。該下模座21在該結合面2ιι上設 有向下凹進之-分流道215，該分流道215連通該兩 孔 213。 請一併參照圖3，所述下模仁套筒22為母模仁套筒， 每一下模仁套筒22為圓柱體狀，其外徑略大於下模座Μ f之安裝孔213之孔徑，以與安裝孔213形成緊密配合。 每一下模仁套筒22具有一第一端面221以及一第二端面 222，該第一端面221與該第二端面222相對設置，其分別 ❿設於該下模仁套« 22之上、下兩端。每一下模仁套筒Μ 位於第一端面221處還設有向内凹進之一入料槽223，該入 料槽223之形狀、尺寸與該下模座21之分流道215之形狀、 尺寸相匹配。當下模仁套筒22安裝於該安裝孔213内時， 該第一端面221與第二端面222分別與下模座21之結合面 211以及安裝面212相平齊，且所述入料槽223與該下模座 21之分流道215連通（如圖6所示）。每一下模仁套筒22 内設有軸向延伸之一模穴224以及一結合槽225,每—模穴 224包括一第一腔體226以及一第二腔體227，該第二腔體 9 200942398 • 227與該第一腔體226同軸心設置且相互連通，該第二腔體 227形成於靠近第二端面222之一端，該第一腔體226形成 於靠近第一端面221之一端，該第一、第二腔體226、227 -均為圓柱孔’其中，該第一腔體226之孔徑小於該第二腔 體227之孔徑。該結合槽225形成於靠近第一端面221之 一端，該結合槽225與該模穴224同軸心設置，且相互連 通以共同形成一貫通第一、第二端面221、222之通孔，該 ❹結合槽225之外徑大於該模穴224之第一腔體226之外徑， 以於該結合槽225之底端形成一分模面228。該結合槽225 還與第一端面221處之入料槽223連通，且該結合槽225 之深度與該入料槽223之深度相等，即該分模面228與該 入料槽223之最低點位於同一平面上。 研繼續參照圖2，該下模仁23可收容於該下模仁套筒 22之模穴224内，該下模仁23整體呈階梯柱狀，其包括一 本體231、由該本體231向上一體延伸之一成型體232。該 ❿成，體232以及該本體231之形狀、尺寸分別與該模穴224 之第一、第二腔體226、227之形狀、尺寸相匹配。該成型 體232之頂端向下凹陷形成一成型腔234，以供成型欲模制 之產品。可以理解地，該成型腔234可根據成型產品之需 要設置成不同之形狀。 ^ 5亥下固定座24亦呈方塊狀，其固設於該下模座21之 文裝，212上（如圖6所示），以用於將下模仁與下模 仁套筒22軸向定位於下模座21之模穴224内。 、 請同時參閱圖4’該上模具單元1G之結構與下模具單 10 200942398 •元20之結構基本相同，其包括一上模座u、兩個上模仁套 筒12、兩個上模仁13以及一上固定座14。所述上模座n、 上模仁套筒12、上模仁13以及上固定座14與該下模具單 元20之下模座21、下模仁套筒22、下模仁23以及下固定 座24分別對應。 該上模座11亦具有一結合面m、一安裝面112、兩 個安裝孔113以及一分流道115，所述結合面m、安裝面 112、安裝孔113以及分流道115之結構與下模座21之結 合面211、安裝面212、安裝孔213以及分流道215之結構 ，相同，而該上模座U之結構與下模座21之結構不同的 是.S亥上模座11内還設有軸向延伸之一主流道114 ,該主 流道114設於兩個安裝孔113之間，且貫通該結合面^ 與安裝面112,同時與該分流道115連通，該主流道ιΐ4 之橫截面積大於分流道115之橫截面積。 所述上模仁套筒12為公模仁套筒，以與該下模仁套筒 ❿22相配合。每-上模仁錢12φ具有—第—端自i2i以及 -第二端面122’該第一端面121與該第二端面122相對設 置，其分別設於該上模仁套筒12之上、下兩端（從圖4之 視角看），該第-端面121與下模仁套筒22之第一端面221 相對應。當上模仁套们2安裝於該安裝孔u3 Μ時，該第 y端面121與第二端面122分別與上模座u之結合面⑴ 以及安裝面112相平齊（如圖6所示）。 請-併參照圈5,每—上模仁套筒12設有—結合凸起 以及軸向延伸並貫通該上模仁套筒12(包括結合凸起 200942398 • 125)之一模穴124。該結合凸起⑵設於上模仁套The bottom of the mold base 72 1 , in the two upper mold holes 714 , the upper fixing seat 713 is disposed on the top of the upper mold base 7 ι , for the two positioning holes 715 on the upper jaw 71 7 1 For accurate positioning of the upper mold 722, the lower mount 7 is disposed therewith for axially positioning the lower mold core 722 in the mold cavity 724 below the lower mold base 6 200942398 • 721. * However, although the structure of the positioning pin 725 and the positioning hole 715 can position the upper mold core 712 and the lower mold core 722, each positioning pin 725 and the positioning hole 715 still have a certain degree of misalignment, about S 0.01 mm or so. Moreover, the degree of misalignment and the misalignment direction of the different positioning pins 725 and the positioning holes 715 are not so that the product quality is degraded, especially in the aspherical optical lens mold positioning structure, and the need for misalignment must be below 0.005 mm. In addition, in the above-mentioned mold positioning structure 7, when one of the mold holes 714, 724 on the upper mold base 7u and the lower mold base 721 is damaged, and the defective product appears, the entire mold base needs to be removed for repair or replacement. This results in a significant increase in the processing cost of the mold positioning structure. Therefore, it needs to be improved. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a mold positioning structure that improves the quality of a molded product. A mold positioning structure includes a first mold unit and a second mold unit, the first mold unit including a first mold base and a first mold core, the second mold unit including a second mold base and a a second mold member, the mold base is attached to the second mold base, and at least one of the first and second mold cores is provided with a molding cavity, and at least one of the first and second mold units is disposed a runner, the runner is in communication with the molding cavity, and the first and second mold dies further include a first and a second mold sleeve, and the first and second mold sleeves/4 are provided along the same The first mold core sleeve is provided with a coupling groove, and the second mold core sleeve is provided with a joint protrusion, and the shape of the joint protrusion is The combination groove is matched with the shape of the phase 7 200942398, and the coupling protrusion is aligned and coupled into the coupling groove. The first and second mold bases are respectively provided with a mounting hole, and the first and second mold core sleeves are respectively respectively Removably mounted in the mounting holes of the first and second mold bases. A mold positioning structure comprises two mold units combined with each other, the mother mold unit comprises a mold base and a mold core, and the mold core is provided with a washing machine, wherein the mold unit is provided with a washing lane, The mold channel is in communication with the molding cavity, each mold unit further includes a mold core sleeve, and the mold core sleeve is provided with a mold cavity extending in the axial direction, and the mold core is received in the mold cavity. One of the mold unit has a joint groove on the mold sleeve, and the other mold has a joint protrusion on the mold sleeve, and the shape of the joint protrusion matches the shape of the joint groove. The combining protrusions are aligned and coupled in the coupling groove, and a mold hole is arranged on the mold base of each mold unit, and the mold sleeve is detachably mounted in the mounting hole. ❹ In the above mold positioning structure, the second mold core sleeve is combined with the convex pair and is coupled to the joint groove of the first mold core sleeve, so that the first, second and the inner sleeve can be mutually engaged The accurate positioning of the mold positioning structure can be achieved, so that the quality of the molded product can be mentioned. In addition, in the above mold positioning structure, when the mold hole on one of the first ☆ first mold sleeves is damaged, only the damaged mold core sleeve can be extracted from the corresponding mold base, thereby Reduce the cost of the die structure. U Replacement [Embodiment] The mold positioning structure 10 and the upper mold 凊 refer to FIG. 1 , which is a preferred embodiment of the present invention. The mold positioning structure 1 includes an upper mold unit 1 〇 corresponding one lower mold unit 20. 8 200942398 . Referring also to FIG. 2 , the lower mold unit 20 includes a lower mold base 21 , two lower mold core sleeves 22 , two lower mold cores 23 , and a lower fixed seat 24 . The lower mold base 21 has a square shape and has a joint surface 211 and a mounting surface 212. The joint surface 211 is opposite to the mounting surface 212. The lower mold base 21 is provided with two axial extensions. Mounting holes 213, each of which is provided with a cylindrical through hole, which is evenly distributed on the lower mold base 21 through the joint surface 2 ι of the lower mold base 21 and the mounting surface 212 of the lower mold base 21 for receiving the corresponding Lower mold core sleeve 22. The lower mold base 21 is provided with a downwardly-divided-dividing passage 215 on the joint surface 2, and the branch passage 215 communicates with the two holes 213. Referring to FIG. 3 together, the lower mold sleeve 22 is a female mold sleeve, and each of the mold core sleeves 22 has a cylindrical shape, and the outer diameter thereof is slightly larger than the diameter of the mounting hole 213 of the lower mold base Μ f. To form a close fit with the mounting hole 213. Each of the mold core sleeves 22 has a first end surface 221 and a second end surface 222. The first end surface 221 is opposite to the second end surface 222, and is respectively disposed above and below the lower mold sleeve Both ends. Each of the mold core sleeves Μ is located at the first end surface 221 and is provided with an inward recessing one of the feeding grooves 223. The shape and size of the feeding groove 223 and the shape and size of the branching passage 215 of the lower mold base 21 Match. When the lower mold core sleeve 22 is mounted in the mounting hole 213, the first end surface 221 and the second end surface 222 are flush with the joint surface 211 of the lower mold base 21 and the mounting surface 212, respectively, and the feeding slot 223 It is in communication with the runner 215 of the lower die holder 21 (as shown in FIG. 6). Each of the mold core sleeves 22 is provided with an axially extending one of the mold cavities 224 and a coupling groove 225. Each of the mold cavities 224 includes a first cavity 226 and a second cavity 227. The second cavity 9 200942398 • 227 is disposed coaxially with the first cavity 226 and is in communication with each other. The second cavity 227 is formed near one end of the second end surface 222 , and the first cavity 226 is formed near one end of the first end surface 221 . The first and second cavities 226, 227 are all cylindrical bores. The aperture of the first cavity 226 is smaller than the aperture of the second cavity 227. The coupling groove 225 is formed at one end of the first end surface 221. The coupling groove 225 is disposed coaxially with the cavity 224 and communicates with each other to form a through hole penetrating the first and second end faces 221 and 222. The outer diameter of the coupling groove 225 is larger than the outer diameter of the first cavity 226 of the cavity 224 to form a parting surface 228 at the bottom end of the coupling groove 225. The coupling groove 225 is also in communication with the feeding groove 223 at the first end surface 221, and the depth of the coupling groove 225 is equal to the depth of the feeding groove 223, that is, the lowest point of the parting surface 228 and the feeding groove 223. Located on the same plane. Referring to FIG. 2, the lower mold core 23 can be received in the cavity 224 of the lower mold core sleeve 22. The lower mold core 23 has a stepped column shape as a whole, and includes a body 231 which is integrated upwardly from the body 231. One of the molded bodies 232 is extended. The shape and size of the body 232 and the body 231 are respectively matched with the shapes and sizes of the first and second cavities 226, 227 of the cavity 224. The top end of the molded body 232 is recessed downward to form a molding cavity 234 for molding the product to be molded. It will be appreciated that the forming cavity 234 can be configured in a different shape depending on the needs of the molded product. ^ 5下下座24 is also in the form of a block, which is fixed on the lower mold base 21, 212 (shown in Figure 6) for the lower mold and the lower mold sleeve 22 The axial direction is located in the cavity 224 of the lower die holder 21. Please refer to FIG. 4'. The structure of the upper mold unit 1G is basically the same as that of the lower mold unit 10 200942398 • The element 20 includes an upper mold base u, two upper mold sleeves 12 and two upper mold cores. 13 and an upper mount 14. The upper mold base n, the upper mold core sleeve 12, the upper mold core 13 and the upper fixing base 14 and the lower mold unit 20 lower mold base 21, the lower mold core sleeve 22, the lower mold core 23 and the lower fixed seat 24 correspond respectively. The upper mold base 11 also has a joint surface m, a mounting surface 112, two mounting holes 113, and a branching passage 115. The joint surface m, the mounting surface 112, the mounting hole 113, and the structure of the branching passage 115 are combined with the lower mold. The structure of the joint surface 211, the mounting surface 212, the mounting hole 213 and the branching passage 215 of the seat 21 is the same, and the structure of the upper mold base U is different from the structure of the lower mold base 21 in the upper mold base 11 of the S. An axially extending one of the main flow channels 114 is disposed between the two mounting holes 113 and penetrates the bonding surface and the mounting surface 112 while communicating with the shunting channel 115. The main channel ΐ4 is horizontally The cross-sectional area is larger than the cross-sectional area of the branch passage 115. The upper mold sleeve 12 is a male mold sleeve for mating with the lower mold sleeve ❿22. Each of the upper mold cores 12φ has a first end from the i2i and a second end surface 122'. The first end surface 121 is disposed opposite to the second end surface 122, and is disposed above and below the upper mold sleeve 12, respectively. At both ends (from the perspective of FIG. 4), the first end surface 121 corresponds to the first end surface 221 of the lower mold core sleeve 22. When the upper die sleeves 2 are mounted on the mounting holes u3 ,, the y-th end faces 121 and the second end faces 122 are flush with the bonding faces (1) and the mounting faces 112 of the upper die holder u, respectively (as shown in FIG. 6). . Please - and with reference to the ring 5, each of the upper die sleeves 12 is provided with a coupling projection and a cavity 124 extending axially therethrough and extending through the upper die sleeve 12 (including the coupling projections 200942398 • 125). The combined protrusion (2) is arranged on the upper mold sleeve
之第一端面121上，其與該下模仁套筒22之結合I =之=合凸起125之高度與該下模仁套筒22之結合: 之讀相同’該結合㈣125之頂端亦形成— -該分模® 128與該下模仁套筒22之分模面228相對 ·、、 5亥結合凸起125在該分模面128上設有向内凹進之一 入料口 123，該入料口 123與該上模仁套筒12之模穴η* ❹連通’該入料口 123之寬度與深度由模穴124向外增大， 從而使入料口 123之口徑由外向模穴m減小，以滿足成 ^產σσ，尤係塑膠鏡片之入料口較小之設計需求，使模具 J位結構1在開模時，其成型產品較易與入料口 123以： 分流道115等流道中之廢料脫離。可以理解地，該入料口 123 ^寬度與深度只需其中之—由模穴124向外增大即可。 每一模穴124亦包括一第一腔體126以及一第二腔體 127’该第二腔體127與該第一腔體126同軸心設置且相互 ❹連通，5亥第—腔體127形成於靠近第二端面122之一端， 該第一腔體126形成於靠近第一端面121之一端，且與第 端面121處之入料口 123連通，該第一腔體126之孔徑 小於該第二腔體127之孔徑。 5月繼續參照圖4，該上模仁13之結構與該下模具單元 〇之下模仁2 3之結構基本相同，該上模仁13可收容於上 模仁套筒12之模穴124内，其亦包括一本體131以及一成 型體132，該成型體132以及該本體131之形狀、尺寸分別 與楱穴124之第一、第二腔體126、127之形狀、尺寸相匹 12 200942398 ，配。該成型體U2之頂端亦向下凹陷形成一成型腔ΐ34，該 成型腔134之形狀可根據成型產品之形狀自由設計。 該上固S座14之結構與該下模具單元⑽之下固定座 .24之結構基本相同，不同的是：該上固定座14内設有轴向 延伸且貫通該上固定座14上下之—進料道144，該進料道 144與上模座^主流道U4對應，以供成型產品之原料 即熔融之塑膠進入。 ο ❹ 請參照圓6’絲裝下模具單元2G，將各下模仁套筒 22對應裝入下模座21之安裝孔213内，形成緊密配合，同 時使該下模仁套筒22之第一端面221與該下模座Μ之結 合面211相平齊，並使該下模仁套筒22之入料槽223盥該 下模座21之分流道215連通；將下模仁23由下朝上裝設 於下模仁套筒22之模穴224中，並將下固定座24固設於 下模座21之安裝面212，從而對下模仁23進一步軸向定 位。同樣’按照組裝下模具單元2〇之方式組裝上模具單元 1〇々。將該上模具單元10與下模具單元2〇合模，各上模仁 套筒12之結合凸起125分別對準並插入各下模仁 2 ，結合槽225,此時該上模座丨丨之結合面ηι '、上模仁套 筒12之第一端面121以及分模自128分別與該下模座η 之結合面2U、下模仁套筒22之第一端面221以及分模面 228貼合，該上模仁13之成型腔134亦與該下模仁u之成 型腔234對應，以共同形成欲成型產品之成型腔 該上模仁套筒12之入料口⑵、該上模座U之分流道115 與該下模仁套筒22之入料槽223、該下模座21之分流道 13 200942398 .=5連通’所述入料口 123、分流道ιΐ5、分流道215、入 槽223、上模座u内之主流道η#以及該上固定座Μ 线料道U4共同形成該模具定位結構i之祕，以供嫁 融之塑膠由此進入成型腔，從而順利成型產品。 上述模具定位結構丨中，各上模仁套筒Η之結合凸起 5分別對準並插入至各下模仁套筒22之結合槽225，即 利用上:下模仁套筒2卜22相互喪合實現模具定位結構 ❹之準確疋位’減少因模具定位結構之錯位而造成成型產品 偏心之誤差，同時上述模具定位結構i中，每-模穴之對 應之模仁套筒還可各自定位，各自成型產品，並不會使習 知模具疋位結構中因不同定位銷與定位孔之錯位程度與錯 山方向不同，而導致成型產品不精確之現象出現，故可提 同成型產品之品質。另外，上述模具定位結構i中，該上、 仁套筒12、22其中—個上之模穴有損傷時，則只需將 受損傷之模仁套筒自模座抽出進行修復或更換即可而無 ❿需將上下模座11、21拆下進行修復或更換整個模座，從 而降低模具定位結構丨之成本。 '本實施例中，所述上、下模仁13、23以及上、下模仁 套筒12、22均為圓柱形且數量均為兩個，可以理解地，本 發明實施例中所述上、下模仁13、23以及上、下模仁套筒 2之也狀、數量以及排布方式並不限於所列舉之範圍 内例如，上、下模仁13、23以及上、下模仁套筒】2、22 之數量亦可同為四個、八個或僅為一個，其排布方式亦可 以為％形排列。此外’上、下模仁】3、23以及上、下模仁 14 200942398 .套筒12、22之形狀亦可為長方體、其他多邊形柱體或不規 則柱體。另外，該上、下模仁！3、23均設有成型腔134、 234，實際上只需其中之一上設有成型腔即可。再者，該上 模仁套筒12之入料口 123、該上模座n之分流道115、主 •流道U4、該下模仁套筒22之入料槽223、該下模座21之 分流道215以及該上固定座14之進料道144共同形成該模 具定位結構1之澆道，而實際上該模具定位結構丨之澆道 可更為簡單’即只需設於該第一、第二模具單元至少其中 之一上即可’其中該洗道與成型腔連通。 綜上所述，本發明確已符合發明專利之要件，遂依法 提出專利中請。惟’以上所述者僅為本發明之較佳實施例， 自不能以此限制本案之申請專利範圍。舉凡熟悉本案技藝 之人士援依本發明之精神所作之等效修飾或變化，皆應= 蓋於以下申請專利範圍内。 【圖式簡單說明】 © 圖1為本發明一較佳實施例之模具定位結構之立體也 裝圖。 、 圖2為圖1所不模具定位結構之部分立體分解圖，其 中該模具定位結構之下肖具單元處於分解狀態。 、 圖3為圖2所不模具定位結構中之下模仁套筒之立 剖視圖。 隨 圖/為圖1所不模具定位結構另一視角之部分立體分 ，該模具定位結構之上模具單元處於分解狀態。 圖5為圖4所不模具定位結構中之上模仁套筒之立 15 200942398 剖視圖。 圖6為1¾ 同1所示模具定位結構沿VI-VI線之放大剖視 圖。 圖On the first end face 121, the combination with the lower die sleeve 22 is the same as the height of the projection 125 and the lower mold core sleeve 22: the same reading 'the combination of the top (125) 125 is also formed — the split mold 128 is opposite to the split surface 228 of the lower mold sleeve 22, and the 5th joint projection 125 is provided on the split surface 128 with an inwardly recessed one inlet opening 123, The inlet port 123 communicates with the cavity η* ❹ of the upper mold sleeve 12. The width and depth of the inlet port 123 are increased outward from the cavity 124, so that the diameter of the inlet port 123 is from the outward die. The hole m is reduced to meet the design requirement of the production σσ, especially the smaller injection port of the plastic lens, so that when the mold J position structure 1 is opened, the molded product is easier to be connected with the inlet port 123: The waste in the runners such as the road 115 is detached. It can be understood that the inlet port 123 ^ width and depth need only one of them - outwardly from the cavity 124. Each cavity 124 also includes a first cavity 126 and a second cavity 127'. The second cavity 127 is disposed concentrically with the first cavity 126 and is in communication with each other. The 5th cavity-127 is formed. The first cavity 126 is formed near one end of the first end surface 121 and communicates with the inlet 123 of the first end surface 121. The aperture of the first cavity 126 is smaller than the second cavity. The aperture of the cavity 127. Referring to FIG. 4 in May, the structure of the upper mold core 13 is substantially the same as the structure of the mold core 23 under the lower mold unit, and the upper mold core 13 can be received in the cavity 124 of the upper mold core sleeve 12. The shape and size of the molded body 132 and the body 131 are respectively matched with the shape and size of the first and second cavities 126 and 127 of the acupoint 124 12 200942398 . Match. The top end of the molded body U2 is also recessed downward to form a molding cavity 34, and the shape of the molding cavity 134 can be freely designed according to the shape of the molded product. The structure of the upper fixing base 14 is substantially the same as the structure of the fixing base 24 of the lower mold unit (10), except that the upper fixing seat 14 is axially extended and penetrates the upper fixing seat 14 up and down - The feed channel 144 corresponds to the upper mold base main channel U4 for the raw material of the molded product, that is, the molten plastic to enter. ο ❹ Refer to the round 6' wire-loaded mold unit 2G, and insert the lower mold core sleeves 22 into the mounting holes 213 of the lower mold base 21 to form a tight fit, and at the same time make the lower mold core sleeve 22 An end surface 221 is flush with the joint surface 211 of the lower mold base, and the feed groove 223 of the lower mold sleeve 22 is connected to the branch passage 215 of the lower mold base 21; the lower mold core 23 is lowered. Mounted upwardly in the cavity 224 of the lower mold core sleeve 22, and the lower mount 24 is fixed to the mounting surface 212 of the lower mold base 21, thereby further axially positioning the lower mold core 23. Similarly, the upper mold unit 1 is assembled in such a manner that the lower mold unit 2 is assembled. The upper mold unit 10 and the lower mold unit 2 are clamped, and the joint protrusions 125 of the upper mold core sleeves 12 are respectively aligned and inserted into the respective lower mold cores 2, and the joint grooves 225 are formed. The joint surface ηι ', the first end surface 121 of the upper mold sleeve 12, and the joint surface 2U of the split mold 128 and the lower mold base η, the first end surface 221 of the lower mold sleeve 22, and the split surface 228 Fitted, the molding cavity 134 of the upper mold core 13 also corresponds to the molding cavity 234 of the lower mold core u to jointly form the molding cavity of the product to be molded, the inlet port (2) of the upper mold core sleeve 12, the upper mold The sub-flow passage 115 of the seat U is connected to the feed chute 223 of the lower mold sleeve 22 and the split passage 13 200942398 .=5 of the lower mold base 21. The inlet port 123, the branch runner ι 5, the branch runner 215, The inlet trough 223, the main flow channel η# in the upper mold base u, and the upper fixing seat 料 line material passage U4 together form the secret of the mold positioning structure i, so that the plastic which is merging enters the molding cavity, thereby smoothly forming the product. . In the above-mentioned mold positioning structure, the joint protrusions 5 of the upper mold sleeves are respectively aligned and inserted into the joint grooves 225 of the lower mold core sleeves 22, that is, using the upper: lower mold core sleeves 2 The accurate positioning of the mold positioning structure is reduced to reduce the eccentricity of the molded product due to the misalignment of the mold positioning structure. At the same time, in the above mold positioning structure i, the corresponding mold core sleeve of each mold cavity can also be positioned separately. The respective molded products do not cause the misalignment of the different positioning pins and the positioning holes in the conventional mold clamping structure to be different from the wrong mountain direction, which leads to the inaccuracy of the molded product, so the quality of the molded product can be improved. . In addition, in the above-mentioned mold positioning structure i, when the mold holes on one of the upper and middle sleeves 12 and 22 are damaged, the damaged mold core sleeve can be taken out from the mold base for repair or replacement. There is no need to remove the upper and lower mold bases 11, 21 for repair or replacement of the entire mold base, thereby reducing the cost of the mold positioning structure. In the present embodiment, the upper and lower mold cores 13, 23 and the upper and lower mold core sleeves 12, 22 are both cylindrical and have two numbers. It can be understood that the upper and lower embodiments of the present invention are described above. The shape, number and arrangement of the lower mold cores 13, 23 and the upper and lower mold core sleeves 2 are not limited to the ranges listed, for example, the upper and lower mold cores 13, 23 and the upper and lower mold core sleeves. The number of cylinders 2, 22 can also be four, eight or only one, and the arrangement can also be arranged in %. In addition, the upper and lower mold cores 3, 23 and the upper and lower mold cores 14 200942398. The sleeves 12 and 22 may also be in the shape of a rectangular parallelepiped, other polygonal cylinders or irregular cylinders. In addition, the upper and lower molds! 3, 23 are provided with molding chambers 134, 234, in fact, only one of them can be provided with a molding cavity. Furthermore, the inlet port 123 of the upper die sleeve 12, the runner 115 of the upper die block n, the main flow passage U4, the feed slot 223 of the lower mold sleeve 22, and the lower die holder 21 The runner 215 and the feed channel 144 of the upper mount 14 together form a runner of the mold positioning structure 1. In fact, the runner of the mold positioning structure can be simpler, that is, only need to be disposed at the first At least one of the second mold units can be 'where the wash channel is in communication with the molding chamber. In summary, the present invention has indeed met the requirements of the invention patent, and the patent is filed according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application in this case. Equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention shall be covered by the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a mold positioning structure according to a preferred embodiment of the present invention. Figure 2 is a partial exploded perspective view of the mold positioning structure of Figure 1, wherein the mold unit is in a disassembled state under the mold positioning structure. Figure 3 is a vertical cross-sectional view of the lower mold sleeve in the mold positioning structure of Figure 2. Figure 3 is a partial perspective view of another view of the mold positioning structure of Figure 1. The mold unit above the mold positioning structure is in a disassembled state. Figure 5 is a cross-sectional view of the upper mold sleeve of the mold positioning structure of Figure 4; Figure 6 is an enlarged cross-sectional view of the mold positioning structure shown in Figure 1 taken along line VI-VI. Figure
知之射出成型模具定位結構之剖面分解示意 【主要元件符號說明】 <本發明> 模具定位結構 1 上模具單元 10 11 主流道 114 12 入料口 123 125 上模仁 13 14 進料道 144 20 下模座 21 111 、 211 安裝面 112 ' 212 113 、 213 分流道 115、215 22 第一端面 121 ' 221 122 ' 222 入料槽 223 124 ' 224 結合槽 225 126 ' 226 第二腔體 127、227 128 ' 228 下模仁 23 131 、 231 成型體 132 ' 232 134 > 234 下固定座 24 Ο 上模座 上模仁套筒 結合凸起 上固定座 下模具單元 結合面 安裝孔 ❹下模仁套筒 第二端面 模穴 第一腔體 分模面 本體 成型腔 200942398 <習知> 模具定位結構 7 上模具單元 71 上模座 711 上模仁 712 ' 上固定座 713 上模穴 714 - 定位孔 715 下模具單元 72 下模座 721 下模仁 722 下固定座 723 下模穴 724 定位銷 725 ❹ 17Cross-sectional decomposition of the injection molding tool positioning structure [main element symbol description] <present invention> mold positioning structure 1 upper mold unit 10 11 main flow path 114 12 inlet port 123 125 upper mold core 13 14 feed channel 144 20 Lower die holder 21 111 , 211 mounting surface 112 ' 212 113 , 213 split runner 115 , 215 22 first end face 121 ' 221 122 ' 222 feed slot 223 124 ' 224 joint groove 225 126 ' 226 second cavity 127, 227 128 ' 228 lower mold 23 131 , 231 molded body 132 ' 232 134 > 234 lower fixed seat 24 上 upper mold base upper mold sleeve combined with projection upper fixed seat lower mold unit joint surface mounting hole lower jaw mold sleeve The second cavity of the cylinder is the first cavity parting surface body forming cavity 200942398 <General knowledge> The mold positioning structure 7 The upper mold unit 71 The upper mold base 711 The upper mold 712 ' Upper fixing seat 713 Upper mold hole 714 - Positioning Hole 715 Lower mold unit 72 Lower mold base 721 Lower mold 722 Lower mount 723 Lower mold hole 724 Positioning pin 725 ❹ 17