JP3214938U

JP3214938U - Mold for molding aspheric optical lenses

Info

Publication number: JP3214938U
Application number: JP2017005479U
Authority: JP
Inventors: 張子英; 傅混記
Original assignee: 均英精密工業股▲分▼有限公司
Priority date: 2017-12-04
Filing date: 2017-12-04
Publication date: 2018-02-15
Anticipated expiration: 2027-12-04

Abstract

【課題】特に部材を簡単に交換することにより、レンズの寸法が異なっても製造できる非球面光学レンズの成形用金型を提供する。【解決手段】非球面光学レンズの成形用金型は、金型仕組みを有し、該金型仕組みに、複数の押出棒２０と、複数の雄型３０と、複数の雌型４０が設置される。雌型のキャビティインサート４１及び、雄型のコアインサート３１と、コアチューブ３２と、微調整ワッシャー４２を組み立てることにより、チャンバーを構成し、さらに、コア押出し棒２１と、ショルダーボルト２２と、バネ２２０を備え、該コア押出し棒２１の一端がコアインサート３１の他端に結合され、受け板が押し棒に連接される構成を有することから、コアチューブ３２及びコアインサート３１を交換するだけで外径が異なるレンズを製造することができると共に、コアインサート３１が自動的に復位しても衝突して斜めに傾く問題が発生しない。【選択図】図５Disclosed is a molding die for an aspherical optical lens that can be manufactured even when the dimensions of the lens are different, particularly by simply exchanging members. A molding die for an aspherical optical lens has a mold mechanism, and a plurality of push rods, a plurality of male molds 30 and a plurality of female molds 40 are installed in the mold mechanism. The The chamber is constructed by assembling the female cavity insert 41, the male core insert 31, the core tube 32, and the fine adjustment washer 42, and further, the core pushing rod 21, the shoulder bolt 22, and the spring 220. The core push-out rod 21 is connected to the other end of the core insert 31, and the receiving plate is connected to the push rod, so that the outer diameter can be obtained simply by replacing the core tube 32 and the core insert 31. However, there is no problem that the core insert 31 collides and tilts obliquely even if the core insert 31 is automatically restored. [Selection] Figure 5

Description

本考案は、特に部材を交換することにより、製造したいレンズの寸法が異なっても非球面光学レンズを生産できる成形用金型に関するものである。 The present invention relates to a molding die capable of producing an aspherical optical lens even when the size of a lens to be manufactured is different, particularly by exchanging members.

既存の光学レンズの成形用金型においては、上部固定板と、下部固定板と、該上部固定板に固定されたキャビティプレートと、下部固定板に固定されたコアプレートを有し、該上部固定板及び下部固定板を駆動することにより組み合わされたり離間させたりすることができる。また、製造したい光学レンズの形状に応じて、キャビティプレートとコアプレートとが組み合わされた面に、少なくとも１つの金型キャビティが形成され、常に１つの金型に数十個の金型キャビティを備え、更に、金型にスプルーが形成され、該スプルーの一端は、それぞれの金型キャビティと連通すると共に、他端は樹脂射出装置と連通する。この構成によれば、樹脂を注入通路から金型キャビティに充填し、レンズが完成すると、キャビティプレート及びコアプレートからレンズを押し出す。 The mold for molding an existing optical lens has an upper fixing plate, a lower fixing plate, a cavity plate fixed to the upper fixing plate, and a core plate fixed to the lower fixing plate. They can be combined or separated by driving the plate and the lower fixing plate. Depending on the shape of the optical lens to be manufactured, at least one mold cavity is formed on the combined surface of the cavity plate and the core plate, and several tens of mold cavities are always provided in one mold. Furthermore, a sprue is formed in the mold, and one end of the sprue communicates with each mold cavity, and the other end communicates with the resin injection device. According to this configuration, the resin is filled into the mold cavity from the injection passage, and when the lens is completed, the lens is pushed out from the cavity plate and the core plate.

既存の光学レンズの成形用金型における金型キャビティは、キャビティプレート及びコアプレートに形成されると共に、金型は、製作したいレンズの寸法及び形状に基づいて作ることから、金型に形成された金型キャビティは所定の形状及び寸法である。このため、寸法が異なるレンズを作る場合、生産プロセスを一旦停止させて、キャビティプレート及びコアプレートを上部固定板及び下部固定板から取り外してから、寸法が異なるキャビティプレート及びコアプレートを上部固定板及び下部固定板に取り付けてレンズを製作しなければならない。すなわち、既存の光学レンズの成形用金型において、寸法が異なるレンズを製作する場合は、キャビティプレート及びコアプレートを交換する必要があるため、より時間や人力が必要となるので、生産コストが増大してしまう。 The mold cavity in the mold for molding the existing optical lens is formed in the cavity plate and the core plate, and the mold is formed in the mold because it is made based on the size and shape of the lens to be manufactured. The mold cavity has a predetermined shape and size. For this reason, when making lenses with different dimensions, the production process is temporarily stopped, the cavity plate and the core plate are removed from the upper fixing plate and the lower fixing plate, and then the cavity plate and the core plate with different dimensions are attached to the upper fixing plate and The lens must be manufactured by attaching it to the lower fixed plate. That is, when manufacturing lenses with different dimensions in an existing optical lens mold, it is necessary to replace the cavity plate and the core plate, which requires more time and manpower, resulting in increased production costs. Resulting in.

本考案に係る非球面光学レンズの成形用金型は、金型仕組みと、複数の押出棒と、複数の雄型と、複数の雌型を有し、そのうち、押出棒と雄型と雌型は金型仕組みに取り付けられ、前記金型仕組みは、互いに組み合わされる固定プレート及び可動プレートと、それぞれが組み立てられる受け板、コアプレート、キャビティープレートを備え、該コアプレート及びキャビティープレートは、互いに対して移動可能であり、対向する面に金型分離面が形成され、該コアプレートにメイン流路及び分流路が形成され、該分流路の一端がメイン流路と連通し、前記固定プレートとキャビティープレートとコアプレートにそれぞれ、複数の冷却パイプが貫通するように形成され、該コアプレート及びキャビティープレートを合わせてから穴形を加工することにより、該コアプレートに複数の雄型穴が形成され、該キャビティープレートに複数の雌型穴が形成され、前記受け板は、複数の押出し穴を備え、該各押出し穴と雄型穴と雌型穴は対応するように位置し、該押出し穴に第一当接面が設けられ、該受け板における、押出し穴と対応する箇所に、互いに組み合わされる第一押出し板及び第二押出し板が設置され、該第二押出し板は、押し棒に連接され、前記押出棒は、コア押出し棒と、ショルダーボルトと、固定ボルトを備え、該コア押出し棒は中空状の棒体であり、外壁に第二当接面が設けられ、該コア押出し棒の一端に貫通穴が形成されると共に、内壁に、それぞれの内径が異なる第一肩面と、第二肩面と、第三肩面が設けられ、該コア押出し棒にバネが設置され、該バネの一端が第一肩面に当接され、該コア押出し棒は、受け板の押出し穴に貫設され、該第二当接面は、押出し穴の第一当接面に面すると共に、該第二当接面と第一当接面との間に隙間Ｐを有し、該ショルダーボルトは、一端にネジ山が形成されると共に、他端にボルトヘッドが設けられ、該ネジ山付きの一端は、バネ及びコア押出し棒の押出し棒穴を通って外部に突出し、該ボルトヘッドは、コア押出し棒の第二肩面に位置し、該バネの一端がボルトヘッドに、他端が第一肩面に当接され、該固定ボルトは、一端にネジ山が形成されると共に、他端にヘッドが設けられ、該固定ボルトは、第二押出し板及び第一押出し板を通ってコア押出し棒のネジ穴に結合され、前記雄型は、コアインサートと、コアチューブと、微調整ワッシャーを備え、該コアインサートは長型柱体であり、一端に小径のコア棒体が設けられ、該コア棒体に第一凹部が形成され、他端の端面にネジ穴が凹設され、該コアインサートは、雄型穴に挿設され、前記ショルダーボルトがコア棒体のネジ穴に螺合され、該コアチューブの内部に環装穴が形成され、該コアチューブの一端面に第二凹部が凹設され、該コアチューブは、コアプレートの雄型穴に設置され、該コア棒体は、摺動可能に環装穴に貫設され、第一凹部及び第二凹部がコア空洞部を構成し、前記微調整ワッシャーは、ショルダーボルトに取り付けられ、該ショルダーボルトは、コアインサートのネジ穴に固定され、該ショルダーボルトのボルトヘッドとコア押出し棒の第二肩面との間に隙間Ｓを有し、前記雌型は、キャビティインサートと、微調整ワッシャーと、固定ボルトを備え、該キャビティインサートは長型柱体であり、一端に小径のキャビティ棒体が設けられ、該キャビティ棒体の一端の端面にキャビティ空洞部が形成されると共に、他端の端面にネジ穴が凹設され、該キャビティインサートは、雌型穴に貫設され、該微調整ワッシャーは、キャビティインサートの末端に設置され、該固定ボルトは、固定プレート及び微調整ワッシャーを通ってキャビティインサートのネジ穴に螺合され、該キャビティ空洞部と第一凹部と第二凹部によりチャンバーを構成し、該チャンバーが位置決め凹部の他端と連通するものである。 A mold for molding an aspherical optical lens according to the present invention has a mold mechanism, a plurality of push rods, a plurality of male dies, and a plurality of female dies, of which a push rod, a male die and a female die The mold mechanism includes a fixed plate and a movable plate that are combined with each other, and a receiving plate, a core plate, and a cavity plate that are assembled to each other, and the core plate and the cavity plate are connected to each other. A mold separation surface is formed on the opposite surface, a main flow path and a branch flow path are formed in the core plate, and one end of the branch flow path communicates with the main flow path, A plurality of cooling pipes are formed in the cavity plate and the core plate, respectively, and the hole shape is processed after the core plate and the cavity plate are combined. A plurality of male holes are formed in the core plate, a plurality of female holes are formed in the cavity plate, and the receiving plate includes a plurality of extrusion holes, and each of the extrusion holes and the male holes The first and second extrusion plates are positioned so as to correspond to each other, the first abutment surface is provided in the extrusion hole, and the receiving plate is combined with each other at a position corresponding to the extrusion hole. The second extruded plate is connected to a push rod, and the push rod includes a core push rod, a shoulder bolt, and a fixing bolt. The core push rod is a hollow rod body, and an outer wall A second abutting surface is formed, a through hole is formed at one end of the core pushing rod, and the inner wall has a first shoulder surface, a second shoulder surface, and a third shoulder surface having different inner diameters. A spring is installed on the core push-out rod, and one end of the spring is first The core push-out rod is penetrated into the push-out hole of the backing plate, the second contact face faces the first contact face of the push-out hole, and the second contact face There is a gap P between the first abutment surface, the shoulder bolt is threaded at one end, and a bolt head is provided at the other end. The bolt head projects to the outside through the push rod hole of the push rod, the bolt head is located on the second shoulder surface of the core push rod, and one end of the spring is in contact with the bolt head and the other end is in contact with the first shoulder surface. The fixing bolt has a thread formed at one end and a head provided at the other end, and the fixing bolt is coupled to the screw hole of the core extrusion rod through the second extrusion plate and the first extrusion plate. The male mold includes a core insert, a core tube, and a fine adjustment washer. Is a long pillar, a small diameter core rod is provided at one end, a first recess is formed in the core rod, a screw hole is recessed in the end surface of the other end, and the core insert is male Inserted into the hole, the shoulder bolt is screwed into the threaded hole of the core rod body, an annular hole is formed inside the core tube, a second recess is formed in one end surface of the core tube, The core tube is installed in the male hole of the core plate, the core bar is slidably inserted into the ring hole, and the first recess and the second recess constitute the core cavity, and the fine adjustment The washer is attached to a shoulder bolt, the shoulder bolt is fixed to the screw hole of the core insert, and has a gap S between the bolt head of the shoulder bolt and the second shoulder surface of the core push-out rod, The mold consists of a cavity insert, a fine adjustment washer, The cavity insert is a long columnar body, a small diameter cavity rod is provided at one end, a cavity cavity is formed at one end of the cavity rod, and a screw is formed at the other end. A hole is recessed, the cavity insert penetrates the female mold hole, the fine adjustment washer is installed at the end of the cavity insert, and the fixing bolt passes through the fixation plate and the fine adjustment washer. The chamber is constituted by the cavity, the first concave portion and the second concave portion, which are screwed into the screw holes, and the chamber communicates with the other end of the positioning concave portion.

かかる非球面光学レンズの成形用金型において、前記雄型穴の一端に位置決め凹部が凹設され、該位置決め凹部は、雄型穴と連通し、該位置決め凹部の内径は、雄型穴の内径よりも大きい設定であり、前記コアチューブの一端にフランジが設けられ、該フランジは位置決め凹部に対応する箇所に押圧部材が設置され、該押圧部材はコアプレートの金型分離面にコアチューブを押圧することによりコアプレートを固定することが好ましい。 In such an aspherical optical lens molding die, a positioning recess is formed at one end of the male mold hole, the positioning recess communicates with the male mold hole, and the inner diameter of the positioning recess is equal to the inner diameter of the male mold hole. The flange is provided at one end of the core tube, and a pressing member is installed at a position corresponding to the positioning recess, and the pressing member presses the core tube against the mold separation surface of the core plate. It is preferable to fix the core plate by doing so.

かかる非球面光学レンズの成形用金型において、前記受け板は本体を備え、該本体における可動プレート側に収容凹部が凹設され、前記複数の押出し穴が、収容凹部と連通するように本体に貫設され、前記第一押出し板及び第二押出し板が、収容凹部の内部に設置されることが好ましい。 In such a mold for molding an aspherical optical lens, the receiving plate includes a main body, a receiving recess is provided on the movable plate side of the main body, and the plurality of push-out holes are connected to the receiving recess. It is preferable that the first extruded plate and the second extruded plate are installed inside the accommodating recess.

かかる非球面光学レンズの成形用金型において、前記固定プレートに複数の固定穴が形成され、該固定穴及び雌型穴が、流路部材の周囲に環状に配列されることが好ましい。 In such an aspherical optical lens molding die, it is preferable that a plurality of fixing holes are formed in the fixing plate, and the fixing holes and the female mold holes are annularly arranged around the flow path member.

かかる非球面光学レンズの成形用金型において、前記コア空洞部がピストン状を呈することが好ましい。 In such an aspherical optical lens molding die, the core cavity preferably has a piston shape.

かかる非球面光学レンズの成形用金型において、前記キャビティインサートの長型柱体の外径と、コアチューブの外径と、コアインサートの長型柱体の外径は、±３μｍの誤差範囲内で同一と見なすことが好ましい。 In such a mold for molding an aspheric optical lens, the outer diameter of the long column body of the cavity insert, the outer diameter of the core tube, and the outer diameter of the long column body of the core insert are within an error range of ± 3 μm. Are preferably the same.

本考案に係る非球面光学レンズの成形用金型は、前記の構成を有することから、以下の効果を発揮できる。
１．コアプレート及びキャビティープレートを合わせてから、雄型穴及び雌型穴を加工して穴形を開けることから、雄型穴と雌型穴との中心線が同一となるので、製造精度に優れる。
２．コアインサートが反対方向に移動して復位すると、押し棒が移動してコア押出し棒を移動させると共に、ショルダーボルトを隙間Ｓの範囲内に復位させ、この時、コアインサートがバネの付勢力により自動的に復位する。このため、コアインサートが衝突して斜めに傾く問題を回避できるので、雄型穴との摩擦により破損する問題も防ぐことができる。
３．雄型及び雌型を合わせて閉じると、金型内の高圧は、同一で安定しているため、コアインサートを精確に位置決めできる。 Since the molding die for an aspherical optical lens according to the present invention has the above-described configuration, the following effects can be exhibited.
1. Since the male and female holes are machined after the core plate and cavity plate are aligned, the center line of the male and female holes is the same, resulting in excellent manufacturing accuracy. .
2. When the core insert moves in the opposite direction and moves backward, the push rod moves to move the core push-out rod, and the shoulder bolt is moved back within the gap S. At this time, the core insert is automatically moved by the spring biasing force. To recover. For this reason, since the problem which a core insert collides and inclines diagonally can be avoided, the problem damaged by friction with a male hole can also be prevented.
3. When the male mold and female mold are closed together, the high pressure in the mold is the same and stable, so that the core insert can be accurately positioned.

本考案に係る非球面光学レンズの成形用金型の斜視図である。1 is a perspective view of a mold for molding an aspheric optical lens according to the present invention. 本考案に係る非球面光学レンズの成形用金型の部分分解斜視図である。1 is a partially exploded perspective view of a molding die for an aspheric optical lens according to the present invention. 図２の部分分解斜視図である。FIG. 3 is a partially exploded perspective view of FIG. 2. 図２の他の部分分解斜視図である。FIG. 3 is another partially exploded perspective view of FIG. 2. 本考案に係る非球面光学レンズの成形用金型における、押出棒と雄型と雌型の分解斜視図である。It is a disassembled perspective view of an extrusion rod, a male mold, and a female mold in a mold for molding an aspheric optical lens according to the present invention. 本考案に係る非球面光学レンズの成形用金型における、押出棒の分解斜視図である。It is a disassembled perspective view of the extrusion rod in the shaping | molding die of the aspherical optical lens which concerns on this invention. 本考案に係る非球面光学レンズの成形用金型における、雄型及び雌型の分解斜視図である。It is a disassembled perspective view of the male type | mold and the female type | mold in the metal mold | die for shaping | molding of the aspherical optical lens which concerns on this invention. 本考案に係る非球面光学レンズの成形用金型における、雄型及び雌型の部分分解斜視図である。FIG. 3 is a partially exploded perspective view of a male mold and a female mold in a mold for molding an aspheric optical lens according to the present invention. 本考案に係る非球面光学レンズの成形用金型の断面図である。It is sectional drawing of the metal mold | die for shaping | molding of the aspherical optical lens which concerns on this invention. 図９の部分拡大図である。FIG. 10 is a partially enlarged view of FIG. 9. 本考案に係る非球面光学レンズの成形用金型の動作説明図である。It is operation | movement explanatory drawing of the metal mold for shaping | molding of the aspherical optical lens which concerns on this invention. 図１１の部分拡大図である。It is the elements on larger scale of FIG.

図１、図２、図５に示すように、本考案に係る非球面光学レンズの成形用金型は、金型仕組み１０と、複数の押出棒２０と、複数の雄型３０と、複数の雌型４０を有し、そのうち、複数の押出棒２０と、複数の雄型３０と、複数の雌型４０は、金型仕組み１０に取り付けられる。 As shown in FIGS. 1, 2, and 5, an aspheric optical lens molding die according to the present invention includes a mold mechanism 10, a plurality of push rods 20, a plurality of male dies 30, and a plurality of molds. A plurality of extrusion rods 20, a plurality of male dies 30, and a plurality of female dies 40 are attached to the mold mechanism 10.

前記金型仕組み１０は、可動プレート１１と、固定プレート１２と、受け板１３と、コアプレート１４、キャビティープレート１５を備える。そのうち、コアプレート１４及びキャビティープレート１５における合わせ面に金型分離面が形成され、該コアプレート１４は、複数の案内柱１４０を備え、該キャビティープレート１５は、複数の案内穴１５０を備え、それらの案内柱１４０はそれぞれ、案内穴１５０に対応して挿設される。この構成によれば、該キャビティープレート１５及びコアプレート１４を合わせたり、離間させたりすることができる。
更に、複数の冷却パイプ１０１を有し、それらの冷却パイプ１０１はそれぞれ、対応する固定プレート１２またはキャビティープレート１５またはコアプレート１４を貫通するように形成され、この冷却パイプにより、金型の温度を下げる効果を提供する。尚、この冷却技術は既存の技術であるので、その詳細な説明は省略する。 The mold mechanism 10 includes a movable plate 11, a fixed plate 12, a receiving plate 13, a core plate 14, and a cavity plate 15. Among them, a mold separation surface is formed on the mating surfaces of the core plate 14 and the cavity plate 15, the core plate 14 includes a plurality of guide pillars 140, and the cavity plate 15 includes a plurality of guide holes 150. The guide pillars 140 are inserted in correspondence with the guide holes 150, respectively. According to this configuration, the cavity plate 15 and the core plate 14 can be combined or separated.
Furthermore, it has a plurality of cooling pipes 101, and each of the cooling pipes 101 is formed so as to penetrate the corresponding fixed plate 12, cavity plate 15 or core plate 14, and this cooling pipe causes the temperature of the mold. Provides the effect of lowering. Since this cooling technique is an existing technique, its detailed description is omitted.

図２、図３、図９に示すように、前記可動プレート１１と受け板１３とコアプレート１４とは、その順で組み立てられ、該コアプレート１４に、複数の雄型穴１４１が形成され、該各雄型穴１４１の一端に位置決め凹部１４２が凹設される。該位置決め凹部１４２の内径は、雄型穴１４１の内径よりも大きい設定であり、図に示した実施例における雄型穴１４１は環状に配列される。可動プレート１１に開口１１１が形成され、該開口１１１に押し棒１１０が設置され、該押し棒１１０は、既存の技術である押出装置により駆動して往復運動を行う。 As shown in FIGS. 2, 3, and 9, the movable plate 11, the receiving plate 13, and the core plate 14 are assembled in that order, and a plurality of male holes 141 are formed in the core plate 14. A positioning recess 142 is provided at one end of each male hole 141. The inner diameter of the positioning recess 142 is set to be larger than the inner diameter of the male hole 141, and the male holes 141 in the embodiment shown in the figure are arranged in an annular shape. An opening 111 is formed in the movable plate 11, and a push rod 110 is installed in the opening 111, and the push rod 110 is driven by an extruding device which is an existing technology to perform a reciprocating motion.

前記受け板１３は、本体１３１と、第一押出し板１３３と、第二押出し板１３４を備え、該本体１３１における可動プレート１１側の一側に収容凹部１３０が凹設され、該本体１３１に複数の押出し穴１３２が形成される。それらの押出し穴１３２はそれぞれ収容凹部１３０と連通し、該押出し穴１３２は、軸方向に沿って内径が異なって階段状となる２つの内周面を備え、該２つの内周面と接する箇所に第一当接面１３２１が設けられる。該収容凹部１３０は、開口１１１に挿設された押し棒１１０に対応し、該収容凹部１３０に第一押出し板１３３及び第二押出し板１３４が設置され、該第一押出し板１３３に複数の貫通穴１３３１が形成され、該第二押出し板１３４に複数の組立穴１３４１が形成される。該貫通穴１３３１は、組立穴１３４１に対応し、該第一押出し板１３３及び第二押出し板１３４は、複数の棒体及び固定ユニットにより互いに重なるように結合固定される。 The receiving plate 13 includes a main body 131, a first extrusion plate 133, and a second extrusion plate 134, and an accommodation recess 130 is provided on one side of the main body 131 on the movable plate 11 side. Extrusion hole 132 is formed. Each of the extrusion holes 132 communicates with the accommodating recess 130, and the extrusion hole 132 has two inner peripheral surfaces that are stepped with different inner diameters along the axial direction, and is in contact with the two inner peripheral surfaces A first abutting surface 1321 is provided. The accommodating recess 130 corresponds to the push rod 110 inserted in the opening 111, and the first extruding plate 133 and the second extruding plate 134 are installed in the accommodating recess 130, and the first extruding plate 133 has a plurality of penetrating holes. A hole 1331 is formed, and a plurality of assembly holes 1341 are formed in the second extruded plate 134. The through hole 1331 corresponds to the assembly hole 1341, and the first extruded plate 133 and the second extruded plate 134 are coupled and fixed so as to overlap each other by a plurality of rod bodies and a fixing unit.

図１、図４、図９に示すように、前記キャビティープレート１５及び固定プレート１２は、棒体及び固定ユニットにより結合固定され、該キャビティープレート１５及び固定プレート１２に、連通するように装着穴が形成され、該装着穴に流路部材１６が取り付けられ、該流路部材１６にメイン流路１６１が形成される。更に、前記固定プレート１２に複数の固定穴１２１が形成され、それらの固定穴１２１は、流路部材１６の周囲に環状に配列される。
一方、前記キャビティープレート１５に複数の雌型穴１５１が形成され、それらの雌型穴１５１は、メイン流路１６１の周囲に環状に配列され、該固定穴１２１は雌型穴１５１に対応し、該雌型穴１５１の一端に、拡径する位置決め凹部１５２が形成される。該位置決め凹部１５２は、固定プレート１２に対応し、該キャビティープレート１５とコアプレート１４との間に複数の分流路１５３が形成され、該各分流路１５３の一端はメイン流路１６１と連通し、そこから樹脂を金型に注入する。 As shown in FIGS. 1, 4, and 9, the cavity plate 15 and the fixing plate 12 are coupled and fixed by a rod body and a fixing unit, and are attached so as to communicate with the cavity plate 15 and the fixing plate 12. A hole is formed, the flow path member 16 is attached to the mounting hole, and the main flow path 161 is formed in the flow path member 16. Further, a plurality of fixing holes 121 are formed in the fixing plate 12, and these fixing holes 121 are arranged in a ring around the flow path member 16.
On the other hand, a plurality of female mold holes 151 are formed in the cavity plate 15, and the female mold holes 151 are annularly arranged around the main channel 161, and the fixing holes 121 correspond to the female mold holes 151. A positioning recess 152 having an enlarged diameter is formed at one end of the female hole 151. The positioning recess 152 corresponds to the fixed plate 12, and a plurality of branch channels 153 are formed between the cavity plate 15 and the core plate 14, and one end of each branch channel 153 communicates with the main channel 161. From there, the resin is poured into the mold.

図９に示すように、前記コアプレート１４の雄型穴１４１及びキャビティープレート１５の雌型穴１５１を加工して製造する場合、該コアプレート１４とキャビティープレート１５を互いに重ねて位置決め、加工マシンにより、対応する雄型穴１４１及び雌型穴１５１を所定の穴型に加工しながら穴の周壁を研磨し、穴の加工及び研磨を同時に行う。このため、雄型穴１４１と雌型穴１５１との中心線が精確に同一となる。 As shown in FIG. 9, when manufacturing the male hole 141 of the core plate 14 and the female hole 151 of the cavity plate 15, the core plate 14 and the cavity plate 15 are overlapped with each other and positioned and processed. The peripheral wall of the hole is polished while machining the corresponding male hole 141 and female hole 151 into a predetermined hole shape by the machine, and the hole is processed and polished simultaneously. For this reason, the center lines of the male hole 141 and the female hole 151 are exactly the same.

図３、図５、図６、図９、図１０に示すように、前記各押出棒２０は、コア押出し棒２１と、ショルダーボルト２２と、固定ボルト２３を備える。該コア押出し棒２１は中空状の棒体であり、該棒体は、軸方向に沿って内径が異なって階段状となる２つの外周面を備え、該２つの外周面と接する箇所に第二当接面２１１が設けられ、該コア押出し棒２１の一端に亘った押出し棒穴２１２が形成され、他端にネジ穴２１６が形成される。該押出し棒穴２１２の内径は、コア押出し棒２１の内径よりも小さい設定であることから、該コア押出し棒２１の内周面に第一肩面２１３が形成され、また、該コア押出し棒２１の内周面にも第二肩面２１４及び第三肩面２１５が順次形成される。 As shown in FIGS. 3, 5, 6, 9, and 10, each push bar 20 includes a core push bar 21, a shoulder bolt 22, and a fixing bolt 23. The core extruding rod 21 is a hollow rod body, and the rod body includes two outer peripheral surfaces that are stepped and have different inner diameters along the axial direction, and a second portion is provided at a position in contact with the two outer peripheral surfaces. An abutting surface 211 is provided, an extrusion rod hole 212 extending over one end of the core extrusion rod 21 is formed, and a screw hole 216 is formed at the other end. Since the inner diameter of the extrusion rod hole 212 is set to be smaller than the inner diameter of the core extrusion rod 21, a first shoulder surface 213 is formed on the inner peripheral surface of the core extrusion rod 21, and the core extrusion rod 21. The second shoulder surface 214 and the third shoulder surface 215 are sequentially formed on the inner peripheral surface of the first shoulder surface.

そのうち、第三肩面２１５の内径は、第二肩面２１４の内径よりも大きい設定であり、該第二肩面２１４の内径は、第一肩面２１３の内径よりも大きい設定であり、すなわち、該コア押出し棒２１における第一肩面２１３と第二肩面２１４と第三肩面２１５は、コア押出し棒２１の押出し棒穴２１２がある一端から他端へ順次配列するように形成される。
更に、前記コア押出し棒２１の内部にバネ２２０が設置され、該バネ２２０の一端が第一肩面２１３に当接され、該コア押出し棒２１は、受け板１３の本体１３１の押出し穴１３２に貫設される。該第二当接面２１１は、押出し穴１３２の第一当接面１３２１に対応するとともに、第一当接面１３２１との間に隙間Ｐを有し、該隙間Ｐは押出パスであり、すなわち、該コア押出し棒２１が受け板１３の押出し穴１３２内で移動可能な最大距離に相当する。 Among them, the inner diameter of the third shoulder surface 215 is set to be larger than the inner diameter of the second shoulder surface 214, and the inner diameter of the second shoulder surface 214 is set to be larger than the inner diameter of the first shoulder surface 213, that is, The first shoulder surface 213, the second shoulder surface 214, and the third shoulder surface 215 of the core pushing rod 21 are formed so as to be sequentially arranged from one end to the other end where the pushing rod hole 212 of the core pushing rod 21 is provided. .
Further, a spring 220 is installed inside the core push-out bar 21, one end of the spring 220 is brought into contact with the first shoulder surface 213, and the core push-out bar 21 is inserted into the push-out hole 132 of the main body 131 of the receiving plate 13. It will be installed. The second contact surface 211 corresponds to the first contact surface 1321 of the push hole 132 and has a gap P between the first contact surface 1321 and the gap P is an extrusion path. This corresponds to the maximum distance that the core pushing rod 21 can move in the pushing hole 132 of the receiving plate 13.

前記ショルダーボルト２２は、一端にネジ山が形成されると共に、他端にボルトヘッド２２１が設けられ、該ネジ山付きの一端は、バネ２２０及びコア押出し棒２１の押出し棒穴２１２を通って外部に突出し、該ボルトヘッド２２１は、コア押出し棒２１の第二肩面２１４に位置し、該バネ２２０の一端がボルトヘッド２２１に、他端が第一肩面２１３に当接される。
前記固定ボルト２３は、一端にネジ山が形成されると共に、他端にヘッドが設けられ、該固定ボルト２３は、第二押出し板１３４及び第一押出し板１３３を通ってコア押出し棒２１のネジ穴２１６に結合される。この構成によれば、前記コア押出し棒２１の端部が第一押出し板１３３に当接され、該押し棒１１０が第二押出し板１３４を押圧して移動させるので、該コア押出し棒２１も同時に移動する。 The shoulder bolt 22 has a thread formed at one end and a bolt head 221 provided at the other end, and the one end with the thread passes through the spring 220 and the push rod hole 212 of the core push rod 21 to the outside. The bolt head 221 is positioned on the second shoulder surface 214 of the core push-out bar 21, and one end of the spring 220 is in contact with the bolt head 221 and the other end is in contact with the first shoulder surface 213.
The fixing bolt 23 has a thread formed at one end and a head provided at the other end. The fixing bolt 23 passes through the second extrusion plate 134 and the first extrusion plate 133 and is screwed into the core extrusion rod 21. Coupled to hole 216. According to this configuration, the end of the core push-out bar 21 is brought into contact with the first push-out plate 133, and the push bar 110 presses and moves the second push-out plate 134. Moving.

図３、図５、図７乃至図９に示すように、前記各雄型３０は、コアインサート３１と、コアチューブ３２と、押圧部材３３と、微調整ワッシャー３４を備える。該各コアインサート３１は長型柱体であり、一端に小径のコア棒体３１０が設けられ、該コア棒体３１０の端面に第一凹部３１１が形成され、他端の面にネジ穴３１２が凹設され、該コアインサート３１は、コアプレート１４の雄型穴１４１に挿設される。 As shown in FIGS. 3, 5, 7 to 9, each male mold 30 includes a core insert 31, a core tube 32, a pressing member 33, and a fine adjustment washer 34. Each of the core inserts 31 is a long columnar body, a small-diameter core rod 310 is provided at one end, a first recess 311 is formed on the end surface of the core rod 310, and a screw hole 312 is formed on the other end. Recessed, the core insert 31 is inserted into the male hole 141 of the core plate 14.

前記コアチューブ３２の内部に環装穴３２２が形成され、該コアチューブ３２の一端面にフランジ３２３が設けられ、該フランジ３２３の端面に第二凹部３２１が凹設され、該フランジ３２３は、コアプレート１４の位置決め凹部１４２に位置する。
図２に示すように、前記押圧部材３３がコアプレート１４の金型分離面にコアチューブ３２を押圧することによりコアプレート１４を位置決める。前記コアインサート３１のコア棒体３１０は、摺動可能に環装穴３２２に貫設される。そのため、第一凹部３１１及び第二凹部３２１がコア空洞部を構成し、また、前記コア空洞部は、ピストン状を呈し、該微調整ワッシャー３４は、コアインサート３１とコア押出し棒２１との間に位置し、前記ショルダーボルト２２は、微調整ワッシャー３４を通ってコアインサート３１のネジ穴３１２に結合固定される。 An annular hole 322 is formed inside the core tube 32, a flange 323 is provided on one end face of the core tube 32, a second recess 321 is provided on the end face of the flange 323, and the flange 323 It is located in the positioning recess 142 of the plate 14.
As shown in FIG. 2, the pressing member 33 positions the core plate 14 by pressing the core tube 32 against the mold separation surface of the core plate 14. The core rod 310 of the core insert 31 is slidably provided in the ring hole 322. Therefore, the first concave portion 311 and the second concave portion 321 constitute a core cavity, the core cavity has a piston shape, and the fine adjustment washer 34 is provided between the core insert 31 and the core push-out rod 21. The shoulder bolt 22 is coupled and fixed to the screw hole 312 of the core insert 31 through the fine adjustment washer 34.

図１２に示すように、前記ショルダーボルト２２は、バネ２２０に貫設され、コア押出し棒２１の押出し棒穴２１２及び微調整ワッシャー３４がネジ穴３１２に結合固定されると、該ショルダーボルト２２のボルトヘッド２２１とコア押出し棒２１にある第二肩面２１４との間に隙間Ｓが構成される。該隙間Ｓは、０．１ｍｍとし、コアインサート３１とコア押出し棒２１を確実に締め付けていない状態とすることが好ましい。 As shown in FIG. 12, the shoulder bolt 22 penetrates the spring 220, and when the push rod hole 212 of the core push rod 21 and the fine adjustment washer 34 are coupled and fixed to the screw hole 312, the shoulder bolt 22 A gap S is formed between the bolt head 221 and the second shoulder surface 214 on the core pushing bar 21. The gap S is preferably set to 0.1 mm so that the core insert 31 and the core push-out rod 21 are not securely tightened.

図４、図５、図８、図９に示すように、前記各雌型４０は、キャビティインサート４１と、微調整ワッシャー４２と、固定ボルト４３とを備える。該キャビティインサート４１は、長型柱体であり、一端に小径のキャビティ棒体４１０が設けられ、該キャビティ棒体４１０の一端の面にキャビティ空洞部４１１が形成されると共に、他端にフランジ４１３が設けられる。該フランジ４１３の端面にネジ穴４１２が凹設され、該キャビティインサート４１は、キャビティープレート１５の雌型穴１５１に貫設され、該フランジ４１３は、位置決め凹部１５２に位置する。該微調整ワッシャー４２は、位置決め凹部１５２の内部に位置するようにキャビティインサート４１に設置され、該固定ボルト４３は、微調整ワッシャー４２及びキャビティインサート４１のネジ穴４１２に貫設固定される。 As shown in FIGS. 4, 5, 8, and 9, each female die 40 includes a cavity insert 41, a fine adjustment washer 42, and a fixing bolt 43. The cavity insert 41 is a long columnar body. A small-diameter cavity rod 410 is provided at one end, a cavity cavity 411 is formed on one end surface of the cavity rod 410, and a flange 413 is formed at the other end. Is provided. A screw hole 412 is formed in the end face of the flange 413, the cavity insert 41 is provided through the female hole 151 of the cavity plate 15, and the flange 413 is positioned in the positioning recess 152. The fine adjustment washer 42 is installed in the cavity insert 41 so as to be positioned inside the positioning recess 152, and the fixing bolt 43 is fixed to the fine adjustment washer 42 and the screw hole 412 of the cavity insert 41.

図９及び図１０に示すように、雄型穴１４１及び雌型穴１５１を加工しながら穴の周壁を研磨することから、雄型穴１４１と雌型穴１５１との中心線は精確に同一となる。
また、コアチューブ３２とコアインサート３１とは、雄型穴１４１を基準として、該雄型穴１４１に対して移動し、該キャビティインサート４１は、雌型穴１５１を基準として、該雌型穴１５１に対して移動するので、優れた精度が得られる。 As shown in FIGS. 9 and 10, since the peripheral wall of the hole is polished while processing the male hole 141 and the female hole 151, the center lines of the male hole 141 and the female hole 151 are exactly the same. Become.
The core tube 32 and the core insert 31 move with respect to the male hole 141 with respect to the male hole 141, and the cavity insert 41 has the female hole 151 with respect to the female hole 151. Therefore, excellent accuracy can be obtained.

レンズを作るための金型のチャンバーは、キャビティ空洞部４１１と、第一凹部３１１と、第二凹部３２１とからなり、レンズの寸法が異なる場合、他の、第二凹部３２１の寸法が異なるコアチューブ３２と交換してもよい。
当初のコアインサート３１が貫設されたコアチューブ３２の環装穴３２２に、寸法が異なるコア空洞部を構成させると共に、キャビティ空洞部４１１に応じて、寸法が異なるチャンバーを構成させることにより、寸法が異なるレンズを製造することができる。すなわち、レンズの外径が異なるものであっても、コアチューブ３２を交換するだけで済み、全ての金型部材を交換する必要はないので、製造コストの節約になる。 The mold chamber for making a lens is composed of a cavity cavity 411, a first recess 311 and a second recess 321. When the lens dimensions are different, other cores having different dimensions of the second recess 321 are provided. The tube 32 may be replaced.
By forming a core cavity part with different dimensions in the ring hole 322 of the core tube 32 through which the original core insert 31 is penetrated, and by forming chambers with different dimensions according to the cavity cavity part 411, Different lenses can be manufactured. That is, even if the outer diameters of the lenses are different, it is only necessary to replace the core tube 32, and it is not necessary to replace all the mold members, so that manufacturing costs can be saved.

前記コアプレート１４及びキャビティープレート１５は、互いに接近して組み合わせると、金型を閉じた状態となり、この時、第一凹部３１１及び第二凹部３２１からなるコア空洞部とキャビティ空洞部４１１との間に、チャンバーが構成される。該チャンバーは、分流路１５３の一端に連接され、光学レンズの樹脂は、流路部材１６のメイン流路１６１から分流路１５３を通ってコア空洞部及びキャビティ空洞部４１１に注入する。
図１１に示すように、レンジが出来上がると、該キャビティープレート１５及びキャビティインサート４１と、コアプレート１４及びコアインサート３１と、コアチューブ３２とをそれぞれ離間させ、前記押し棒１１０が受け板１３の第二押出し板１３４及び第一押出し板１３３を押し出すと、コア押出し棒２１を介して微調整ワッシャー３４及びコアインサート３１を順次押し、該コアインサート３１のコア棒体３１０は、第一凹部３１１が形成された一端を介して、レンズをコア空洞部から押し出すことができる。
前記コアインサート３１は、レンズを押し出す方向が雄型穴１４１と平行すると共に、レンズを全面的に押すことから、レンズを押す力が均一になるため、レンズの形状を確保して製造の精度を向上させる。 When the core plate 14 and the cavity plate 15 are combined close to each other, the mold is closed, and at this time, the core cavity formed by the first recess 311 and the second recess 321 and the cavity cavity 411 are separated. In between, a chamber is constructed. The chamber is connected to one end of the branch channel 153, and the resin of the optical lens is injected from the main channel 161 of the channel member 16 through the branch channel 153 into the core cavity and the cavity cavity 411.
As shown in FIG. 11, when the range is completed, the cavity plate 15 and the cavity insert 41, the core plate 14 and the core insert 31, and the core tube 32 are separated from each other. When the second extruded plate 134 and the first extruded plate 133 are extruded, the fine adjustment washer 34 and the core insert 31 are sequentially pushed through the core extruded rod 21, and the core rod body 310 of the core insert 31 has the first recessed portion 311. The lens can be pushed out of the core cavity through the formed end.
The core insert 31 pushes the lens parallel to the male hole 141 and pushes the lens entirely, so that the force to push the lens becomes uniform. Improve.

図１２に示すように、前記コアインサート３１は、反対方向に移動して復位し、押出装置は、押し棒１１０を移動させながらコア押出し棒２１を移動させ、また、ショルダーボルト２２を隙間Ｓの範囲内に強力に復位させる。この時、コアインサート３１は、バネ２２０の付勢力により自動的に復位することから、コアインサート３１が衝突して斜めに傾く問題を回避できるので、雄型穴１４１との摩擦により破損する問題も防ぐことができる。 As shown in FIG. 12, the core insert 31 moves in the opposite direction and moves backward, and the extrusion device moves the core push-out rod 21 while moving the push rod 110, and also moves the shoulder bolt 22 in the gap S. Powerfully reposition within range. At this time, since the core insert 31 is automatically restored by the urging force of the spring 220, it is possible to avoid the problem that the core insert 31 collides and tilts obliquely, so that the core insert 31 may be damaged due to friction with the male hole 141. Can be prevented.

また、バネ２２０の付勢力により復位することにより、コアインサート３１を精確に隙間Ｓの範囲内に位置決めることができない場合は、雄型３０及び雌型４０を合わせて閉じると、金型内の高圧は、同一で安定していることから、コアインサート３１が精確に位置決めされる。 In addition, when the core insert 31 cannot be accurately positioned within the range of the gap S by being restored by the urging force of the spring 220, when the male mold 30 and the female mold 40 are closed together, Since the high pressure is the same and stable, the core insert 31 is accurately positioned.

１０金型仕組み
１０１冷却パイプ
１１可動プレート
１０押し棒１
１１１開口
１２固定プレート
１２１固定穴
１３受け板
１３０収容凹部
１３１本体
１３２押出し穴
１３２１第一当接面
１３３第一押出し板
１３３１貫通穴
１３４第二押出し板
１３４１組立穴
１４コアプレート
１４０案内柱
１４１雄型穴
１４２位置決め凹部
１５キャビティープレート
１５０案内穴
１５１雌型穴
１５２位置決め凹部
１５３分流路
１６流路部材
１６１メイン流路
２０押出棒
２１コア押出し棒
２１１第二当接面
２１２押出し棒穴
２１３第一肩面
２１４第二肩面
２１５第三肩面
２１６ネジ穴
２２ショルダーボルト
２２０バネ
２２１ボルトヘッド
２３固定ボルト
３０雄型
３１コアインサート
３１０コア棒体
３１１第一凹部
３１２ネジ穴
３１０コア棒体
３１１第一凹部
３２コアチューブ
３２１第二凹部
３２２環装穴
３２３フランジ
３３押圧部材
３４微調整ワッシャー
４０雌型
４１キャビティインサート
４１０キャビティ棒体
４１１キャビティ空洞部
４１２ネジ穴
４１３フランジ
４２微調整ワッシャー
４３固定ボルト 10 Mold mechanism 101 Cooling pipe 11 Movable plate 10 Push rod 1
DESCRIPTION OF SYMBOLS 111 Opening 12 Fixed plate 121 Fixed hole 13 Receiving plate 130 Housing recessed part 131 Main body 132 Extrusion hole 1321 1st contact surface 133 1st extrusion plate 1331 Through hole 134 2nd extrusion plate 1341 Assembly hole 14 Core plate 140 Guide pillar 141 Hole 142 Positioning recess 15 Cavity plate 150 Guide hole 151 Female mold hole 152 Positioning recess 153 Branching channel 16 Channel member 161 Main channel 20 Extrusion rod 21 Core extrusion rod 211 Second contact surface 212 Extrusion rod hole 213 First shoulder Surface 214 Second shoulder surface 215 Third shoulder surface 216 Screw hole 22 Shoulder bolt 220 Spring 221 Bolt head 23 Fixing bolt 30 Male 31 Core insert 310 Core rod body 311 First recess 312 Screw hole 310 Core rod body 311 First recess 32 Coach Tube 321 Second recess 322 Ring hole 323 Flange 33 Press member 34 Fine adjustment washer 40 Female mold 41 Cavity insert 410 Cavity rod 411 Cavity cavity 412 Screw hole 413 Flange 42 Fine adjustment washer 43 Fixing bolt

Claims

Having a mold mechanism, a plurality of extrusion rods, a plurality of male molds, and a plurality of female molds,
The extrusion bar, male mold and female mold are attached to the mold mechanism,
The mold mechanism includes a fixed plate and a movable plate that are combined with each other, and a receiving plate, a core plate, and a cavity plate that are assembled to each other, and the core plate and the cavity plate are movable with respect to each other. A mold separation surface is formed on the surface, a main channel and a branch channel are formed in the core plate, one end of the branch channel communicates with the main channel, and the fixed plate, the cavity plate, and the core plate, respectively The plurality of cooling pipes are formed so as to pass through, and the hole shape is processed by combining the core plate and the cavity plate, thereby forming a plurality of male holes in the core plate. A plurality of female mold holes are formed, and the receiving plate includes a plurality of extrusion holes, each of the extrusion holes, the male mold holes, and the female molds. Are positioned so as to correspond to each other, the first abutment surface is provided in the extrusion hole, and the first extrusion plate and the second extrusion plate to be combined with each other are installed in the portion corresponding to the extrusion hole in the receiving plate, The second extruded plate is connected to a push rod;
The extrusion rod includes a core extrusion rod, a shoulder bolt, and a fixing bolt. The core extrusion rod is a hollow rod body, and a second contact surface is provided on an outer wall, and one end of the core extrusion rod is provided. A through hole is formed, and a first shoulder surface, a second shoulder surface, and a third shoulder surface having different inner diameters are provided on the inner wall, and a spring is installed on the core pushing rod, and one end of the spring is provided. Is abutted against the first shoulder surface, the core pusher bar penetrates the pusher hole of the backing plate, the second abutment surface faces the first abutment surface of the pusher hole and the second abutment surface There is a gap P between the abutment surface and the first abutment surface, and the shoulder bolt is provided with a thread at one end and a bolt head at the other end. The bolt and the bolt head projecting to the second shoulder surface of the core extrusion rod. One end of the spring is brought into contact with the bolt head and the other end is brought into contact with the first shoulder surface. The fixing bolt has a thread formed at one end and a head provided at the other end. Is connected to the screw hole of the core extrusion rod through the second extrusion plate and the first extrusion plate,
The male mold includes a core insert, a core tube, and a fine adjustment washer. The core insert is a long columnar body, a small-diameter core rod is provided at one end, and a first recess is formed in the core rod. The screw hole is recessed in the end face of the other end, the core insert is inserted into the male hole, the shoulder bolt is screwed into the screw hole of the core rod body, and the ring is inserted into the core tube. A mounting hole is formed, a second recess is formed in one end surface of the core tube, the core tube is installed in a male hole of the core plate, and the core rod body is slidably formed into an annular mounting hole. The first recess and the second recess constitute a core cavity, and the fine adjustment washer is attached to a shoulder bolt, and the shoulder bolt is fixed to a screw hole of the core insert. No. of head and core extrusion rod A gap S between the shoulder surface,
The female die includes a cavity insert, a fine adjustment washer, and a fixing bolt. The cavity insert is a long columnar body, a small-diameter cavity rod is provided at one end, and an end surface of one end of the cavity rod is provided. A cavity cavity is formed, and a screw hole is recessed in the end face of the other end, the cavity insert is penetrated through the female mold hole, and the fine adjustment washer is installed at the end of the cavity insert and fixed. The bolt is screwed into the screw hole of the cavity insert through the fixing plate and the fine adjustment washer, and the cavity cavity, the first recess, and the second recess constitute a chamber, and the chamber communicates with the other end of the positioning recess. It is characterized by
Mold for molding aspheric optical lenses.

A positioning recess is provided at one end of the male hole, the positioning recess communicates with the male hole, and an inner diameter of the positioning recess is set to be larger than an inner diameter of the male hole, and one end of the core tube The flange is provided with a pressing member at a position corresponding to the positioning recess, and the pressing member fixes the core plate by pressing the core tube against the mold separation surface of the core plate. A mold for molding an aspherical optical lens according to claim 1.

The receiving plate includes a main body, a receiving recess is provided on the movable plate side of the main body, the plurality of extrusion holes are provided through the main body so as to communicate with the receiving recess, and the first push plate and the second push plate The molding die for an aspherical optical lens according to claim 1, wherein the extrusion plate is installed inside the housing recess.

4. The molding of an aspherical optical lens according to claim 3, wherein a plurality of fixing holes are formed in the fixing plate, and the fixing holes and the female mold holes are annularly arranged around the flow path member. Mold.

The mold for molding an aspherical optical lens according to claim 4, wherein the core cavity has a piston shape.

The outer diameter of the long columnar body of the cavity insert, the outer diameter of the core tube, and the outer diameter of the long columnar body of the core insert are considered to be the same within an error range of ± 3 μm. A mold for molding an aspherical optical lens according to 1.