JPH0780210B2 - Method for manufacturing three-color lens - Google Patents
Method for manufacturing three-color lensInfo
- Publication number
- JPH0780210B2 JPH0780210B2 JP13040688A JP13040688A JPH0780210B2 JP H0780210 B2 JPH0780210 B2 JP H0780210B2 JP 13040688 A JP13040688 A JP 13040688A JP 13040688 A JP13040688 A JP 13040688A JP H0780210 B2 JPH0780210 B2 JP H0780210B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- color
- color tone
- molding
- injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould cavities
- B29C45/1639—Removable partitions between adjacent mould cavity portions
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、３種類の色調を有する部分よりなる３色レン
ズを射出成形する方法に係り、特に、１組の成形型によ
って３色レンズを成形し得るように改良した方法に関す
るものである。Description: TECHNICAL FIELD The present invention relates to a method of injection molding a three-color lens composed of portions having three kinds of color tones, and in particular, a three-color lens is formed by a set of molding dies. The present invention relates to an improved method for molding.
従来技術でＮ色の多色レンズを射出成形する場合は、 雄雌Ｎ組の成形型を用い、型組み、型外しを含む射出工
程をＮ回繰返していた。When N-color multi-color lenses are injection-molded by the conventional technique, N male and female molding dies are used, and the injection process including mold assembly and mold removal is repeated N times.
即ち、２色レンズを成形する場合は、第１の射出成形型
を用いて第１の色調のレンズを成形し、 上記第１の色調のレンズを、第２の射出成形型の中に収
納して（インサートして）、第２の色調のレンズを、前
記既製の第１の色調のレンズに連設して２色レンズを成
形する。That is, in the case of molding a two-color lens, a lens of the first color tone is molded using the first injection mold, and the lens of the first color tone is housed in the second injection mold. (Inserted), the second color lens is continuously formed with the ready-made first color lens to form a two-color lens.
３色レンズを成形する場合は、更に上記の如く成形した
２色レンズを第３の射出成形型の中に収納して、第３の
色調のレンズをこれに連設して成形する。In the case of molding a three-color lens, the two-color lens molded as described above is further housed in a third injection molding die, and a lens of a third color tone is connected to this and molded.
上に述べた従来技術に係る方法によれば、単色レンズよ
りも２色レンズ、２色レンズよりも３色レンズと、色調
の数が増すに従って所要の射出成形型の数が増し、工程
が複雑となり、大形で高価な成形設備を必要とした。According to the above-mentioned method of the related art, the number of required injection molding dies increases as the number of color tones increases, that is, two-color lenses rather than single-color lenses, three-color lenses rather than two-color lenses, and the process is complicated. Therefore, a large and expensive molding facility was required.
本発明の目的は、雄，雌１組の射出成形型を用い、型組
み，型外しを含む工程１サイクルによって、３色レンズ
を射出成形する方法を提供しようとするものである。An object of the present invention is to provide a method of injection molding a three-color lens by using one set of male and female injection molds and one cycle of steps including mold assembly and demolding.
上記の目的を達成するために創作した本発明に係る方法
は （イ）色調の異なるレンズ境界面を設定し、 （ロ）上記境界面に進出・後退する第1,第２の仕切板を
構成し、 （ハ）上記３枚の仕切板のそれぞれが後退したとき、成
形型の雄側及び雌側それぞれの中に収納される構造と
し、 （ニ）上記第1,第２の仕切板を境界面に進出させて第２
の色調のレンズを射出成形し、 （ホ）該第１の仕切板を後退させて第１の色調のレンズ
を射出成形し、 （ヘ）第２の仕切板を後退をさせて第３の色調のレンズ
を射出成形する。The method according to the present invention created in order to achieve the above object comprises (a) setting lens boundary surfaces having different color tones, and (b) configuring first and second partition plates that advance and retreat to the boundary surfaces. (C) When each of the three partition plates is retracted, it is housed in each of the male side and the female side of the mold, and (d) the first and second partition plates are separated from each other. Second to advance to the surface
(E) The first partition plate is retracted to injection-mold the lens of the first color tone, and (f) The second partition plate is retracted to the third color tone. Injection molding the lens.
ただし、第１の色調、第２の色調，第３の色調とは、単
に色調を区別するための呼び名であって、これを如何な
る色調にするかは拘束されない。第１の仕切板，第２の
仕切板も、区分の為の便宜的な呼び名であって、入れ替
え可能である。However, the first color tone, the second color tone, and the third color tone are merely names for distinguishing the color tone, and there is no restriction on what color tone these are. The first partition plate and the second partition plate are also convenient names for classification and can be replaced.
上記の工程によれば、仕切板を備えた１組の型で３色レ
ンズの射出成形が行われ、 第１の色調のレンズの射出成形から第２の色調のレンズ
の射出成形まで間において、成形型に関する限りは、仕
切板を後退させれば足り、型外し、型組みの作業を要し
ない。According to the above process, the injection molding of the three-color lens is performed by one set of molds including the partition plate, and from the injection molding of the lens of the first color tone to the injection molding of the lens of the second color tone, As far as the molding die is concerned, it is sufficient to retreat the partition plate, and it is not necessary to remove the die and assemble the die.
第５図に示す如く、３色レンズ１の輪郭内部を、第１の
色調の部分1aと、第２の色調の部分1bと、第３の色調の
部分1cに区分し、鎖線で示した第１の境界面Ｘと、破線
で示した第２の境界面Ｙとを設定する。As shown in FIG. 5, a contour inside of the three-color lens 1, a portion 1 a of the first color and a portion 1 b of the second color, and divided into portions 1c of the third color, indicated by a chain line The first boundary surface X and the second boundary surface Y indicated by the broken line are set.
第１図（Ｂ）に示す如く、射出成形用の型２は、雌型2a
と2bとによって構成され、両者の間に、 第１の色調のレンズを成形するための空隙3aと、第２の
色調のレンズを成形するための空隙3bと、 第３の色調のレンズを成形するための空隙3cとが形成さ
れる。As shown in FIG. 1 (B), the injection mold 2 is a female mold 2a.
And 2b, and a space 3a for molding a lens of the first color tone, a space 3b for molding a lens of the second color tone, and a lens of the third color tone between them. A void 3c for forming is formed.
前記の境界面Ｘに沿って第１の仕切板４を構成する。こ
の仕切板４は雄型2b内に設けられていて、矢印ａ方向に
突出して空隙3a,3bを仕切ったり、矢印ｂ方向に後退し
て収納されたりする構造である。The first partition plate 4 is configured along the boundary surface X. The partition plate 4 is provided in the male mold 2b and has a structure that projects in the direction of arrow a to partition the voids 3a and 3b, or retracts in the direction of arrow b and is stored.
第１図（Ｂ）のII−II断面を第２図に示す。The II-II cross section of FIG. 1 (B) is shown in FIG.
第２図（Ａ）は、第１の仕切板４が矢印ｂ方向に後退し
た状態を描き、同図（Ｂ）は矢印ａ方向に前進して、成
形用空隙を仕切った状態を描いてある。FIG. 2 (A) depicts a state in which the first partition plate 4 is retracted in the direction of arrow b, and FIG. 2 (B) depicts a state in which it is advanced in the direction of arrow a to partition the molding gap. .
５は、駆動用のシリンダである。Reference numeral 5 is a driving cylinder.
同様に、第２の空隙3bと第３の空隙とを仕切る第２の仕
切板６を設ける。Similarly, a second partition plate 6 for partitioning the second gap 3b and the third gap is provided.
第１図に示す如く、第１の仕切板４を矢印ａ方向に前進
させ、空隙3aと、同3bとを仕切る。As shown in FIG. 1, the first partition plate 4 is advanced in the direction of the arrow a to partition the space 3a and the space 3b.
この状態（仕切った状態）で、第１図（Ａ），（Ｂ）に
示す如く、第２の色調のレンズ（斑点を付して示す）1b
を射出成形する。In this state (partitioned state), as shown in FIGS. 1 (A) and 1 (B), the lens of the second color tone (shown with spots) 1b
Injection molding.
この状態（第１図）から、第１の仕切板４を矢印ｂ方向
に後退させて、第３図の状態とする。第１の仕切板４の
後退により、成形された第２の色調のレンズ1bの端面1b
-1は、第１の色調のレンズを成形するための空隙3aに対
して露出する。From this state (FIG. 1), the first partition plate 4 is retracted in the direction of the arrow b to obtain the state of FIG. The end surface 1b of the lens 1b of the second color tone formed by the retreat of the first partition plate 4
-1 is exposed to the void 3a for molding the lens of the first color tone.
この状態（端面露出）で、第３図に示すように、第１の
色調のレンズ1aを射出成形する。In this state (end face exposed), as shown in FIG. 3, the lens 1a of the first color tone is injection molded.
次いで第２の仕切板６を後退させ、第４図に示すように
第３の色調のレンズ1cを射出成形する。Next, the second partition plate 6 is retracted, and the lens 1c of the third color tone is injection-molded as shown in FIG.
この実施例においては以上に述べたようにして、雌型2a
と雄型2bとの１組の型を用い、型組み操作・型外し操作
を繰り返すことなく、３色レンズが射出成形される。In this embodiment, as described above, the female mold 2a
And a male mold 2b are used as a set, and a three-color lens is injection-molded without repeating the mold assembling operation and the mold removing operation.
本発明の製造方法によれば、雄，雌１組の型を用い、型
組み・型外しを含む工程１サイクルで、３色レンズを射
出成形することが出来る。According to the manufacturing method of the present invention, a three-color lens can be injection-molded by using one set of male and female molds and one cycle of the process including the mold assembly and the mold removal.
第１図は、本発明の３色レンズ製造方法を実施するため
に構成した３色レンズ製造装置の１例の説明図である。 第２図は上記第１図のII−II断面図である。 第３図及び第４図は本発明方法の１実施例を示す工程図
である。第５図は３色レンズの説明図である。 １…３色レンズ、1a…第１の色調のレンズ、1b…第２の
色調のレンズ、1c…第３の色調のレンズ、２…射出成形
用の型、2a…雌型、2b…雄型、３…成形用の空隙、3a…
第１の色調のレンズを成形するための空隙、3b…第２の
色調のレンズを成形するための空隙、3c…第３の色調の
レンズを成形するための空隙、４…第１の仕切板、５…
シリンダ、６…第２の仕切板。FIG. 1 is an explanatory view of an example of a three-color lens manufacturing apparatus configured to carry out the three-color lens manufacturing method of the present invention. FIG. 2 is a sectional view taken along line II-II of FIG. 3 and 4 are process drawings showing one embodiment of the method of the present invention. FIG. 5 is an explanatory diagram of a three-color lens. 1 ... 3 color lens, 1a ... 1st color tone lens, 1b ... 2nd color tone lens, 1c ... 3rd color tone lens, 2 ... Injection molding mold, 2a ... Female mold, 2b ... Male mold 3 ... Void for molding, 3a ...
Void for molding lens of first color tone, 3b ... Void for molding lens of second color tone, 3c ... Void for molding lens of third color tone, 4 ... First partition plate 5 ...
Cylinder, 6 ... Second partition plate.
Claims (1)
部分と第３の色調の部分とよりなる３色レンズを射出成
形する方法において、 （ｂ）射出成形用の雄型と雌型との間に形成される空隙
内に、色調の境界面を設定し、 （ｃ）上記第１の色調と第２の色調との境界面に挿入，
抜去される構造の第１の仕切板を、射出成形用の雄型側
に設けると共に、第３の色調とその他の色調との境界面
に挿入，抜去される構造の第２の仕切板を射出成形用の
雌型側に設け、 （ｄ）上記第１及び第２の仕切板を境界面に挿入した状
態で第２の色調のレンズを射出成形し、 （ｅ）第２の色調のレンズを射出成形した後、前記第１
の仕切板を後退させて境界面を開放し、 （ｆ）第１の色調のレンズを射出成形し、 （ｇ）第２の仕切板を後退させ、その後 （ｈ）第３の色調のレンズを射出成形し、 （ｉ）雄，雌１組の型により３色レンズを射出成形する
ことを特徴とする、３色レンズの製造方法。1. A method for injection-molding a three-color lens comprising (a) a first color tone portion, a second color tone portion and a third color tone portion, and (b) a male for injection molding. A color tone boundary surface is set in a space formed between the mold and the female mold, and (c) is inserted in the boundary surface between the first color tone and the second color tone,
The first partition plate of the structure to be removed is provided on the male mold side for injection molding, and the second partition plate of the structure to be inserted and removed is inserted into the boundary surface between the third color tone and other color tones. Provided on the molding die side, (d) injection-molding a lens of the second color tone with the first and second partition plates inserted in the boundary surface, and (e) a lens of the second color tone. After injection molding, the first
The partition plate is moved backward to open the boundary surface, (f) the lens having the first color tone is injection-molded, (g) the second partition plate is moved backward, and then (h) the lens having the third color tone is used. A method for manufacturing a three-color lens, which comprises injection-molding, and (i) injection-molding a three-color lens with a pair of male and female molds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13040688A JPH0780210B2 (en) | 1988-05-30 | 1988-05-30 | Method for manufacturing three-color lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13040688A JPH0780210B2 (en) | 1988-05-30 | 1988-05-30 | Method for manufacturing three-color lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01301217A JPH01301217A (en) | 1989-12-05 |
| JPH0780210B2 true JPH0780210B2 (en) | 1995-08-30 |
Family
ID=15033519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13040688A Expired - Fee Related JPH0780210B2 (en) | 1988-05-30 | 1988-05-30 | Method for manufacturing three-color lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0780210B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01304919A (en) * | 1988-06-02 | 1989-12-08 | Yoshino Kogyosho Co Ltd | Molding method for synthetic resin |
| JP3127830B2 (en) * | 1996-06-27 | 2001-01-29 | 三菱自動車工業株式会社 | Door trim structure and method of forming door trim structure |
| US8057217B2 (en) * | 2004-09-30 | 2011-11-15 | Bausch + Lomb Incorporated | Apparatus and method for injection molding an intraocular lens device |
| KR101877284B1 (en) * | 2016-11-09 | 2018-07-11 | 임장호 | Manufacturing mold for insulation cap of solderless terminal comprising blocking member |
-
1988
- 1988-05-30 JP JP13040688A patent/JPH0780210B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01301217A (en) | 1989-12-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |