JPH01288417A - Manufacture of bicolor lens - Google Patents

Manufacture of bicolor lens

Info

Publication number
JPH01288417A
JPH01288417A JP63118181A JP11818188A JPH01288417A JP H01288417 A JPH01288417 A JP H01288417A JP 63118181 A JP63118181 A JP 63118181A JP 11818188 A JP11818188 A JP 11818188A JP H01288417 A JPH01288417 A JP H01288417A
Authority
JP
Japan
Prior art keywords
lens
partition plate
color
molding
color tone
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.)
Pending
Application number
JP63118181A
Other languages
Japanese (ja)
Inventor
Masao Hongo
本郷　正男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ichikoh Industries Ltd
Original Assignee
Ichikoh Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ichikoh Industries Ltd filed Critical Ichikoh Industries Ltd
Priority to JP63118181A priority Critical patent/JPH01288417A/en
Publication of JPH01288417A publication Critical patent/JPH01288417A/en
Pending legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Optical Filters (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To perform an injection molding for color lens by a process wherein a partition plate, which advances toward and withdraws from a boundary surface, is constituted by setting a different color tone lens boundary surface, and as the partition plate withdraws, it is accommodated in the male side of molds, and a first color tone lens is injection molded by letting the partition plate advance toward the boundary surface and a second color tone lens is injection molded by letting the partition plate withdraw therefrom. CONSTITUTION:The mold 2 for an injection molding is made up of a female mold 2a and a male mold 2b, and a cavity 3a for molding a first tone lens and a cavity 3b for molding a second tone lens are formed therebetween. Furthermore, a partition plate 4 is constituted along the boundary surface Y. The cavity 3a and the cavity 3b are partitioned by letting the partition plate 4 advance toward the direction of an arrow (a). The first tone lens 1a is injected molded in this state. From this state, the partition plate 4 is withdrawn toward the direction of an arrow (b). through the withdrawal of the partition plate 4, the end surface 1a of the first tone lens 1a molded is exposed relative to the cavity 3b for molding the second tone lens. In this state, the second tone lens 1b is injection molded, so that a bicolor lens 1 is completed.

Description

【発明の詳細な説明】 〔産業上の利用分野］ 本発明は、２種類の色調を有する部分よりなる２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２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。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a method of injection molding a dichroic lens consisting of parts having two types of color tones, and particularly relates to a method of injection molding a dichroic lens consisting of parts having two types of color tones, and in particular, a method for injection molding a dichroic lens consisting of parts having two types of color tones. This invention relates to an improved method for molding.

〔従来の技術］ 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。[Prior Art] In the case of injection molding a polychromatic lens of N colors using the conventional technology, N sets of male and female molds were used, and the injection process including mold assembly and mold removal was 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, when molding a two-color lens, a first injection mold is used to mold a lens of a first color tone, and the lens of the first color tone is housed in a second injection mold. (inserted), a second color tone lens is connected to the ready-made first color tone 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。When molding a three-color lens, the two-color lens molded as described above is further placed in a third injection mold, and a lens of a third color tone is molded in series with the two-color lens.

〔発明が解決しようとする課題］ 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、大形ご高価な成形設備を必要とした。[Problems to be Solved by the Invention] According to the method according to the prior art described above, the number of required injection molding increases as the number of color tones increases, such as two-color lenses rather than monochromatic lenses, and three-color lenses rather than two-color lenses. The number of molds increased, the process became complicated, and large and expensive molding equipment was required.

本発明の目的は、誰、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、２色レンズ
を射出成形する方法を従供しようとするものである。An object of the present invention is to provide a method for injection molding a dichroic lens using one set of female injection molds through one process cycle including mold assembly and mold removal.

〔課題を解決するための手段〕[Means to solve the problem]

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・後退する仕切板を構成し、 （ハ）上記仕切板が後退したとき、成形型の雄側に収納
される構造とし、 （ニ）上記仕切板を境界面に進出させて第１の色調のレ
ンズを射出成形し、 （ホ）該仕切板を後退させ°Ｃ第２の色調のレンズを射
出成形する ただし、第１の色調、第２の色調とは、単に色調を区別
するだ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。The method according to the present invention created to achieve the above object includes (a) setting lens boundary surfaces with different tones, (b) configuring a partition plate that advances and retreats into the boundary surfaces, and (c) the above-mentioned When the partition plate is retracted, the structure is such that it is stored on the male side of the mold, (d) the partition plate is advanced to the boundary surface and a lens of the first color tone is injection molded, and (e) the partition plate is Injection mold the lens of the second color tone.However, the first color tone and the second color tone are simply names used to distinguish the color tones, and there is no restriction on the color tone. .

〔作用〕[Effect]

上記の工程によれば、仕切板を備えた１組の型で２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と、第２の色調のレンズ
の射出成形との間において、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, injection molding of two-color lenses is performed in a set of molds equipped with partition plates, and between injection molding of lenses of a first color tone and injection molding of lenses of a second color tone. In this case, as far as the mold is concerned, it is sufficient to retreat the partition plate, and there is no need to remove the mold or assemble the mold.

（実施例〕 第１図は本発明方法を実施する為に構成した２色レンズ
射出成形装置の説明図である。(Example) FIG. 1 is an explanatory diagram of a two-color lens injection molding apparatus configured to carry out the method of the present invention.

第１図（Ａ）は、構成すべき２色レンズ１の輪郭を示す
。FIG. 1(A) shows the outline of a dichroic lens 1 to be constructed.

第１図（Ｂ）は、上記の２色レンズ１を射出成形するた
めの型２の断面を示す。FIG. 1(B) shows a cross section of a mold 2 for injection molding the dichroic lens 1 described above.

第１図（Ａ）に示す如く、２色レンズ１の輪郭内部を、
第１の色調の部分ｔｒｉｍと、第２の色調の部分ｂ−１
ｂとに区分し、境界面Ｙを設定する。As shown in FIG. 1(A), the inside of the outline of the dichroic lens 1 is
The first color tone part trim and the second color tone part b-1
b, and set the boundary surface Y.

本例において第１の色調１．、のレンズ１．はターニン
グランプ用のレンズ部分であり、第２の色調す、のレン
ズ１．はブ１／−キランプ用の部分である。In this example, the first color tone 1. , lens 1. is the lens part for the turning lamp, and the lens 1. is the second color tone. is the part for B1/-Kiramp.

第１図（Ｂ）に示す如く、創出成形用の型２ば、雌型２
ａ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とが形成
される。As shown in FIG. 1(B), a mold 2 for creation molding, a female mold 2
a and 2b, and a gap 3a for molding the lens of the first color tone and a gap 3b for molding the lens of the second color tone are formed between the two.

前記の境界面Ｙに沿って仕切板４を構成する。The partition plate 4 is constructed along the boundary surface Y mentioned above.

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、矢印す方向
に後退し７て収納されたりする構造である。This partition plate 4 is provided inside the male die 2b, and has a structure in which it projects in the direction of the arrow a to partition the gaps 3a and 3b, or retreats in the direction of the arrow 7 and is stored.

第１図（Ｂ）の■−■断面を第２図に示す。FIG. 2 shows a cross section taken along line 1--2 in FIG. 1(B).

第２図（Ａ）は、仕切板４が矢印す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である。FIG. 2(A) depicts a state in which the partition plate 4 is retreated in the direction indicated by the arrow, and FIG. 2(B) depicts a state in which the partition plate 4 moves forward in the direction indicated by the arrow a to partition the molding gap.

５は、駆動用のシリンダである。5 is a driving cylinder.

第３図に示す如く、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. 3, move the partition plate 4 forward in the direction of arrow a,
The space 3a and the space 3b are partitioned.

この状態（仕切った状態）で、第４図に示す如く、第１
の色調のレンズ（斑点を付し７て示す）１ａを射出成形
する。In this state (partitioned state), as shown in Figure 4, the first
A lens (indicated with spots 7) 1a having a color tone of 1 is injection molded.

この状態（第４図）から、仕切板４を矢印す方向に後退
させて、第５図の状態とする。仕切板４の後退により、
成形された第１の色調のレンズ１ａの端面１ａ−＋は、
第２の色調のレンズを成形するための空隙３ｂに対して
露出する。From this state (FIG. 4), the partition plate 4 is moved back in the direction indicated by the arrow, resulting in the state shown in FIG. 5. Due to the retreat of the partition plate 4,
The end surface 1a-+ of the molded lens 1a of the first color tone is
It is exposed to the cavity 3b for molding the lens of the second color tone.

この状態（端面露出）で、第６図に示すように、第２の
色調のレンズｌｂを射出成形して、２色レンズ１を完成
させる。In this state (end face exposed), as shown in FIG. 6, the second color tone lens lb is injection molded to complete the two-color lens 1.

この実施例においては以上に述べたようにして、雌型２
ａ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、２色レンズが射出成形される
。In this embodiment, as described above, the female mold 2
A two-color lens is injection molded using a set of molds consisting of mold a and male mold 2b without repeating mold assembly and mold removal operations.

〔発明の効果〕〔Effect of the invention〕

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ｌサイクルで、２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 two-color lens can be injection molded using one set of male and female molds in one cycle of steps including mold assembly and mold removal.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本発明の２色レンズ製造方法を実施するため
に構成した２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■−■断面図である。 第３図乃至第６図は本発明方法の１実施例を示す工程図
である。 １−２色レンズ、ｌａ−・・第１の色調のレンズ、１ｂ
−第２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、４−仕切板、５−シフ
リンダ。 特許出願人　　市光工業株式会社 代理人　弁理士　　秋　本　正　実 第　Ｉｖ！Ｊ 第２図 （Ａ）　　　　　　　　　　　　　　（Ｂ）第６図FIG. 1 is an explanatory diagram of an example of a dichroic lens manufacturing apparatus configured to carry out the dichroic lens manufacturing method of the present invention. FIG. 2 is a sectional view taken along the line -■ in FIG. 1 above. 3 to 6 are process diagrams showing one embodiment of the method of the present invention. 1-Two-color lens, la--first color tone lens, 1b
- Lens of second color tone, 2- Mold for injection molding, 2a- Female mold, 2b- Male mold, 3- Gap for molding, 3a- Gap for molding lens of first color tone, 3b・-Gap for molding the lens of the second color tone, 4-Partition plate, 5-Shiffrinder. Patent applicant Ichikoh Industries Co., Ltd. Agent Patent attorney Tadashi Akimoto Jitsu IV! J Figure 2 (A) (B) Figure 6

Claims (1)

【特許請求の範囲】 １、（ａ）第１の色調の部分と、第２の色調の部分とよ
りなる２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）上記境界面に挿入、抜去される構造の仕切板を、
射出成形用の雄型側に設け、 （ｄ）上記仕切板を境界面に挿入した状態で第１の色調
のレンズを射出成形し、 （ｅ）第１の色調のレンズを射出成形した後、前記の仕
切板を後退させて境界面を開放し、 （ｆ）第２の色調のレンズを射出成形し、 （ｇ）雄、雌１組の型により２色レンズを射出成形する
ことを特徴とする、２色レンズの製造方法。[Claims] 1. (a) A method for injection molding a two-color lens consisting of a first color tone portion and a second color tone portion, including: (b) a male mold and a female mold for injection molding; (c) a partition plate having a structure that is inserted and removed from the boundary surface;
provided on the side of a male mold for injection molding; (d) injection molding a lens of a first color tone with the partition plate inserted into the boundary surface; (e) injection molding a lens of a first color tone; Retracting the partition plate to open the boundary surface, (f) injection molding a lens of a second color tone, and (g) injection molding a two-color lens using a pair of male and female molds. A method of manufacturing a two-color lens.
JP63118181A 1988-05-17 1988-05-17 Manufacture of bicolor lens Pending JPH01288417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63118181A JPH01288417A (en) 1988-05-17 1988-05-17 Manufacture of bicolor lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63118181A JPH01288417A (en) 1988-05-17 1988-05-17 Manufacture of bicolor lens

Publications (1)

Publication Number Publication Date
JPH01288417A true JPH01288417A (en) 1989-11-20

Family

ID=14730146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63118181A Pending JPH01288417A (en) 1988-05-17 1988-05-17 Manufacture of bicolor lens

Country Status (1)

Country Link
JP (1) JPH01288417A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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
WO1997049569A1 (en) * 1996-06-27 1997-12-31 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Door trim structure and method of forming same
JP2002011749A (en) * 2000-04-28 2002-01-15 Mitsubishi Engineering Plastics Corp Method and apparatus for injection-molding molded article having hollow part

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53255A (en) * 1976-06-24 1978-01-05 Akira Ikeda Method of simultaneously molding with multiple colors
JPS61112620A (en) * 1984-11-07 1986-05-30 Nissan Motor Co Ltd Multi-color molding of resin

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53255A (en) * 1976-06-24 1978-01-05 Akira Ikeda Method of simultaneously molding with multiple colors
JPS61112620A (en) * 1984-11-07 1986-05-30 Nissan Motor Co Ltd Multi-color molding of resin

Cited By (4)

* Cited by examiner, † Cited by third party
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
WO1997049569A1 (en) * 1996-06-27 1997-12-31 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Door trim structure and method of forming same
JP2002011749A (en) * 2000-04-28 2002-01-15 Mitsubishi Engineering Plastics Corp Method and apparatus for injection-molding molded article having hollow part
JP4553512B2 (en) * 2000-04-28 2010-09-29 三菱エンジニアリングプラスチックス株式会社 Injection molding method for molded product having hollow part

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