JP3137150U - Plastic molds with cooling channels used in the production of optical lenses - Google Patents
Plastic molds with cooling channels used in the production of optical lenses Download PDFInfo
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Abstract
【課題】プラスチック光学レンズの射出成型における冷却水路構造を提供する。
【解決手段】雄金型30、雌金型35からなり、
該雄金型は、柱状体であって一端面に成型部305を凸設し、
該雌金型も柱状体であって一端面に成型部355を凹設して、金型嵌合時に雄金型成型部と一体となって成型モールド空間Sを形成する。
該雄、雌金型は、柱状体内に冷却用環形溝301、351をそれぞれ設け、柱状体の成型部の反対側に開口する302,303、及び352,353にそれぞれ接続して循環冷却することによって、冷却過程中のプラスチック材料を均等に冷却、固化する。
【選択図】図2A cooling channel structure for injection molding of a plastic optical lens is provided.
A male mold 30 and a female mold 35 are provided.
The male mold is a columnar body, and a molding part 305 is projected on one end surface,
The female mold is also a columnar body, and a molding part 355 is recessed in one end surface, and a molding mold space S is formed integrally with the male mold molding part when the mold is fitted.
The male and female molds are provided with ring-shaped grooves 301 and 351 for cooling in the columnar bodies, respectively, and connected to 302, 303, 352, and 353 opened on the opposite side of the columnar body for circulation cooling. As a result, the plastic material in the cooling process is uniformly cooled and solidified.
[Selection] Figure 2
Description
本考案は、光学レンズの製造に用いる鋳造水路構造に関し、特に、大型のプラスチックレンズの射出成型鋳造装置であって、該雄金型と雌金型の間の環形溝内の流体循環冷却作用によって、光学レンズ射出成型が冷却過程において、プラスチック材料の冷却が不均等であるために、該レンズ面曲率の不均等を生じ、不良品を製造することを回避し、高精密度且つ不良品を低減した光学レンズの生産を達成する鋳造水路構造に関する。 The present invention relates to a casting water channel structure used for manufacturing an optical lens, and more particularly, to an injection molding casting apparatus for a large plastic lens, by a fluid circulation cooling action in an annular groove between the male mold and the female mold. In the cooling process of optical lens injection molding, the plastic material is unevenly cooled, so the lens surface curvature is uneven, avoiding the production of defective products, high precision and reducing defective products The present invention relates to a casting channel structure that achieves the production of optical lenses.
通常、光学レンズの射出成型機は、図1に示すように、プラスチック粒子を定量、間歇な方式で、ロート10から加え、加熱管中へ送り、加熱し、融解した後、ピストン12またはプレスヘッドの前進によって、ノズルを介して金型の金型孔中に入射させ、金型孔を充填した後、金型孔の冷却システムによりプラスチック材料を冷却し、固体化し、適当な温度に下げた後、金型を開いて製品を突出すだけでよく、その後、次の射出成型工程を循環継続することができる。
従来の射出形成機は、該冷却水路11が該固定金型13と該滑動金型14のボディ周囲に敷設され、金型孔中の高温融解状態プラスチックM1を冷却し、十分な強度を有する温度まで下げ(プラスチックの強度は温度と時間係数に関する)。
考慮する要素は、下記の事項:成型工程の循環周期(Time Cycle)回数、冷却水路(cooling chanel)制御方式、充填過程中の炉内で冷却凝固を経た後に起こる反応変化、熱流および金型熱平衡の伝導であり、そのうち、該冷却水路の制御方式こそが鍵であるが、従来の冷却水路11は該プラスチック材料の迅速な成型および金型の冷却のみを考慮して敷設され、該プラスチック材料の冷却凝固過程における均等な熱伝導、精密な計算および冷却水路構造の設計の改良には、対応しておらず、該光学レンズ成型後のレンズ面硬度の集中、不均等を招き、該光学レンズ鏡面曲率の差異が大きくなり、その該光学レンズの高精度品質は、改善を望むところである。
In the conventional injection molding machine, the
Factors to consider are: The number of cycles in the molding process (Time Cycle), cooling channel control system, reaction changes that occur after cooling solidification in the furnace during the filling process, heat flow and mold heat balance Among them, the control method of the cooling water channel is the key, but the conventional
本考案は、光学レンズの製造に用いる鋳造水路構造を提供し、それは、雄金型、雌金型を含み、
該雄金型は、柱状体であり、その柱体内に環形溝を設け、該環形溝の両端は、該雄金型に一端面を設け、該雄金型の他端には成型部を凸設し、該雌金型の成型部と対応して嵌合してなり、
該雌金型も柱状体であり、その柱体内に環形溝を設け、該環形溝両端は、該雌金型に一端面を設け、該雌金型の他端は成型部を凹設し、該雄金型の成型部と嵌合してなり、
該雄金型と雌金型との間の環形溝内の流体循環冷却の作用によって、光学レンズ射出成型の冷却過程中のプラスチック材料冷却の不均等を回避し、レンズ硬度の集中現象を防止し、該レンズ鏡面曲率の不均等を起こし、製品が不良となることを回避し、高精密度且つ歩留り向上の目的を達成する。
The present invention provides a casting channel structure for use in manufacturing an optical lens, which includes a male mold, a female mold,
The male mold is a columnar body, an annular groove is provided in the column body, one end surface is provided on the male mold at both ends of the annular groove, and a molding portion is projected on the other end of the male mold. And is fitted in correspondence with the molding part of the female mold,
The female mold is also a columnar body, an annular groove is provided in the column body, both ends of the annular groove are provided with one end surface of the female mold, and the other end of the female mold is provided with a recessed molding portion, It is fitted with the molding part of the male mold,
The fluid circulation cooling action in the annular groove between the male mold and the female mold avoids uneven plastic material cooling during the cooling process of the optical lens injection molding and prevents the lens hardness concentration phenomenon. The lens mirror surface curvature is caused to be uneven, the product is prevented from being defective, and the object of high precision and yield improvement is achieved.
本考案は、更に明らかに進歩性および実用性を有し、従来技術と比較し以下のように分析される。
従来技術、
1、従来の射出成型の鋳造金型冷却水路構造は、ただ該プラスチック材料の迅速な成 型および金型の冷却を考慮するだけであり、該光学レンズの硬度集中の現象を発 生させ易く、該光学レンズ鏡面曲率の不均等を招き、不良品を製造する。
2、光学レンズの不良率が高くなり、且つ材料を浪費し、製造コストも増加する。
3、大型光学レンズの生産は、該光学レンズの均等な熱伝導を制御する必要があり、 その技術の困難度が高くなる。
The present invention clearly has an inventive step and practicality, and is analyzed as follows in comparison with the prior art.
Conventional technology,
1. The conventional injection mold cooling water channel structure of injection molding only considers rapid molding of the plastic material and cooling of the mold, and easily causes the phenomenon of concentration of hardness of the optical lens. The optical lens mirror surface curvature is uneven and a defective product is manufactured.
2. The defect rate of the optical lens is increased, the material is wasted, and the manufacturing cost is increased.
3. The production of large optical lenses requires the control of the uniform heat conduction of the optical lens, which increases the difficulty of the technology.
本考案の長所は、
1、該金型の対称な水路循環構造設計によって、該光学レンズの硬度集中現象を消失 させ、光学レンズ射出成型時の歩留りを向上する。
2、構造が簡単であり、且つ各型の金型設計に簡単に合わせることができ、歩留りを 向上し、品質を安定させ、製品の市場競争力を向上させる
The advantages of the present invention are
1. The symmetrical water channel circulation structure design of the mold eliminates the hardness concentration phenomenon of the optical lens and improves the yield at the time of optical lens injection molding.
2. The structure is simple and can be easily adapted to the mold design of each mold, improve the yield, stabilize the quality, improve the market competitiveness of the product
図2、図3に示すように、本考案の鋳造水路構造の説明図であり、雄金型30と雌金型35からなる。
As shown in FIG. 2 and FIG. 3, it is an explanatory view of the casting channel structure of the present invention, and consists of a
該雄金型30は、柱状体であり、該滑動金型金型31内に設置され、該雄金型30の一端には、給水口302および排水口303を設けてなり、該雄金型30の柱体内に環形溝301を設け、該環形溝301の両端はそれぞれ、該雄金型30の給水口302および排水口303と嵌合し、該雄金型30の他端には成型部305を凸設し、該雌金型35の成型部355と相対するよう滑動金型金型31内に嵌合する。
該雌金型35も柱状であり、該滑動金型31と対応して配置され、該雌金型35の一端には給水口352と排水口353を設け、該雌金型35の柱体内に環形溝351を設け、該環形溝351の両端はそれぞれ、該雌金型35の給水口352および排水口353と相互に嵌合し、該雌金型35の他端には該雄金型30の成型部と対応して成型部355を凹設する。
該雄金型30と雌金型35を嵌合する時、該雄金型30の成型部305と該雌金型355の対応箇所に、金型孔S構造を形成し、該光学レンズプラスチック材料300が該金型孔S中で定圧成型される過程において、図4に示すように、該環形溝301、351内の流体循環を介して、成型凝固する過程中の発熱を、迅速に該環形溝301,351の流体内に伝導し、循環冷却水路に均等に拡散、放熱することによって、該光学レンズプラスチック材料300を速やか且つ均等に冷却し、該光学レンズプラスチック材料300の成型凝固を完成する。
The
The
When the
なお、本考案では好ましい実施例を前述の通り開示したが、これらは決して本考案に限定するものではなく、当該技術を熟知する者なら誰でも、本考案の精神と領域を脱しない均等の範囲内で各種の変動や潤色を加えることができることは勿論である。 In the present invention, preferred embodiments have been disclosed as described above, but these are not intended to limit the present invention in any way, and anyone who is familiar with the technology has an equivalent scope that does not depart from the spirit and scope of the present invention. Of course, various fluctuations and hydration colors can be added.
10 ロート
11 冷却水路
12 ピストン
13 固定金型
14 滑動金型金型
M1 高温融解状態プラスチック
2 鋳造水路構造
30 雄金型
31 滑動金型金型
301 環形溝
302 給水口
303 排水口
305 成型部
35 雌金型
351 環形溝
352 給水口
353 排水口
355 成型部
S 金型孔
300 光学レンズプラスチック材料
DESCRIPTION OF
Claims (3)
雄金型は、一端面に成型部を凸設し、
該雌金型は、一端面に成型部を凹設して、金型嵌合時に雄金型成型部と一体となって成型モールド空間を形成し、
該雄、雌金型は、金型内に冷却用環形溝をそれぞれ設け、上記成型部の反対側に開口する給、排水路にそれぞれ接続して循環冷却するようにしたことを特徴とする
光学レンズの製造に用いる冷却水路を具えたプラスチック成型金型。 It consists of male mold and female mold,
The male mold has a molded part projecting on one end surface,
The female mold has a molding part recessed at one end surface to form a molding mold space integrally with the male mold molding part when fitting the mold,
The male and female molds are provided with cooling annular grooves in the mold, respectively, connected to supply and drainage channels that open on the opposite side of the molding part, and circulated and cooled. A plastic mold with a cooling water channel used to manufacture lenses.
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TW95219614U TWM310803U (en) | 2006-11-07 | 2006-11-07 | Water path structure of mold core for manufacturing optical lenses |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109591258A (en) * | 2018-12-20 | 2019-04-09 | 西安铂力特增材技术股份有限公司 | One kind is exempted to graft active cooling eyeglass injection mold structure and its manufacturing method |
JP2019072862A (en) * | 2017-10-12 | 2019-05-16 | 均賀科技股▲ふん▼有限公司Jun He Technology Co., Ltd. | Module structure of optical sheet injection molding |
Families Citing this family (3)
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TWI691397B (en) * | 2017-08-07 | 2020-04-21 | 雙瑩科技股份有限公司 | Fresnel lens injection molding mold device using rapid cooling and hot mold core |
CN109397727B (en) * | 2017-08-18 | 2022-02-11 | 双莹科技股份有限公司 | Fresnel lens manufacturing method, injection molding die device used by same and manufactured Fresnel lens |
CN109397611B (en) * | 2017-08-18 | 2022-02-11 | 双莹科技股份有限公司 | Fresnel lens manufacturing method, injection molding die device used by same and manufactured Fresnel lens |
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2006
- 2006-11-07 TW TW95219614U patent/TWM310803U/en not_active IP Right Cessation
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2007
- 2007-09-03 JP JP2007006801U patent/JP3137150U/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019072862A (en) * | 2017-10-12 | 2019-05-16 | 均賀科技股▲ふん▼有限公司Jun He Technology Co., Ltd. | Module structure of optical sheet injection molding |
CN109591258A (en) * | 2018-12-20 | 2019-04-09 | 西安铂力特增材技术股份有限公司 | One kind is exempted to graft active cooling eyeglass injection mold structure and its manufacturing method |
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Publication number | Publication date |
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TWM310803U (en) | 2007-05-01 |
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