JPH01202415A - Film release method, in simultaneous injection molding and molded-in foil decoration - Google Patents
Film release method, in simultaneous injection molding and molded-in foil decorationInfo
- Publication number
- JPH01202415A JPH01202415A JP2558888A JP2558888A JPH01202415A JP H01202415 A JPH01202415 A JP H01202415A JP 2558888 A JP2558888 A JP 2558888A JP 2558888 A JP2558888 A JP 2558888A JP H01202415 A JPH01202415 A JP H01202415A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- film
- female mold
- injection molding
- molding
- 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
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005034 decoration Methods 0.000 title description 2
- 239000011888 foil Substances 0.000 title 1
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 11
- 239000000057 synthetic resin Substances 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000010422 painting Methods 0.000 claims description 6
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000007666 vacuum forming Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 6
- 238000007639 printing Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14008—Inserting articles into the mould
- B29C45/14016—Intermittently feeding endless articles, e.g. transfer films, to the mould
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、射出成形同時絵付けを行うことのできる射出
成形装置をより効率よく利用できるフィルムの離型方法
に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for releasing a film that allows more efficient use of an injection molding apparatus that can perform painting simultaneously with injection molding.
「従来の技術」
従来印刷手段により絵付けされた熱可塑性合成樹脂フィ
ルムを射出成形装置内において、まず射出成形用雌金型
を用い、真空成形法により所定形状に成形した後、該金
型をそのま＼用いて対向側に射出成形用雄型を配し、成
形品本体用の溶融合成樹脂を圧入して所望の複雑な曲面
に絵付けされた合成樹脂成形品を得ることにある。"Prior Art" A thermoplastic synthetic resin film decorated by conventional printing means is first molded into a predetermined shape by vacuum forming using a female injection mold in an injection molding apparatus, and then the mold is To obtain a synthetic resin molded product having a desired complicated curved surface by placing a male mold for injection molding on the opposite side and press-fitting the molten synthetic resin for the molded product body.
ところが、この方法では印刷されたフィルム又はシート
を射出成形された合成樹脂成形品の表面にフィルムと共
に一体成形される。However, in this method, the printed film or sheet is integrally molded with the film on the surface of an injection-molded synthetic resin molded product.
従って、成形毎にフィルム又はシートを絵付けと同時に
一体的に固定するものには適するが、透明なものに文字
、図柄等のみを転写（絵付け）せしめた後に不要フィル
ムのみを雌金型よりスムーズに剥離せしめないと、不要
フィルムの巻き取りと同時に絵付はフィルムの真空成形
が困難になる問題点がある。Therefore, it is suitable for integrally fixing a film or sheet at the same time as painting for each molding, but after transferring (painting) only letters, designs, etc. to a transparent object, only the unnecessary film is removed from the female mold. If it is not peeled off smoothly, there is a problem in that it becomes difficult to wind up the unnecessary film and vacuum form the painted film at the same time.
「発明が解決しようとする課題」
そこで、合成樹脂に絵付けされた後のフィルムが雌型形
状になじみ貼り付いているのを、加圧流体を用いて前記
フィルムを雌型より離型せしめ、もって該フィルムを巻
取ると同時に連結供給を可能ならしむことが本発明の技
術課題である。``Problem to be Solved by the Invention'' Therefore, the film applied to the synthetic resin was adapted to the female mold shape and stuck, so the film was released from the female mold using pressurized fluid. It is a technical object of the present invention to make it possible to wind up the film and simultaneously supply the film in a connected manner.
「課題を解決するための手段」
文字、図柄等を印刷した熱可塑性合成樹脂フィルムを雌
金型に真空成形方法により所要形状に形成し、その後雌
金型と雄金型を閉じると共に溶融合成樹脂を圧入するこ
とにより射出成形同時絵付けにおいて、射出成形、保圧
冷却工程後、金型開放と同時に雌金型内に加圧流体を供
給せしむることにより、雌金型内に真空されていたフィ
ルムを雌金型より剥離せしむる離型工程とからなること
を特徴とするフィルム離型方法を提供することにある。``Means for solving the problem'' A thermoplastic synthetic resin film printed with letters, designs, etc. is formed into the desired shape in a female mold by vacuum forming, and then the female mold and male mold are closed, and the molten synthetic resin is In simultaneous painting of injection molding, a vacuum is created in the female mold by supplying pressurized fluid into the female mold at the same time as the mold is opened after the injection molding and holding pressure cooling process. An object of the present invention is to provide a film mold release method characterized by comprising a mold release step of peeling off the film from a female mold.
「作 用」
射出成形、保圧冷却工程後、サクション側の切換バルブ
を閉じ、しかるのち加圧流体側の切換バルブを開くこと
により、加圧流体が雌型内に吹き出されることにより、
雌型に貼り付いているフィルムを押圧離型せしむること
がてきる。"Function" After the injection molding and pressure holding cooling process, the switching valve on the suction side is closed, and then the switching valve on the pressurized fluid side is opened, and the pressurized fluid is blown out into the female mold.
The film stuck to the female mold can be released by pressing.
「実施例」 以下図に基づいて本発明方法の一実施例を説明する。"Example" An embodiment of the method of the present invention will be described below based on the drawings.
ｌは射出成形機の型締機構側の可動盤１３に取付た雌金
型て、該雌金型ｌには所要形状のキャビティ１１が形成
されると共に該キャビティ１１の裏面側には外部配管に
連通ずる。1 is a female mold attached to a movable platen 13 on the mold clamping mechanism side of the injection molding machine, and a cavity 11 of a desired shape is formed in the female mold 1, and an external piping is connected to the back side of the cavity 11. Communicate.
単数若しくは複数の真空吸引と加圧流体の吹き出しを兼
ねる吸引吹き出し口１２．１２．．．形成されている。One or more suction outlets 12.12. Which serve both for vacuum suction and for blowing out pressurized fluid. ．． ．． It is formed.
２は熱可塑性樹脂フィルム２１の表面に文字、模様、図
柄等が形成された印刷層２２を有するフィルムロールで
、該フィルムロール２は射出成形機の型締機構の可動盤
１３側にアームに取り付けられたシャフト３に保持され
、巻き戻されたフィルム２１の一端は巻き取りシャフト
３１側に固定し、射出成形機の射出サイクルに同期して
所定長さ巻き戻されるようにフィルムにはマークが形成
されている。2 is a film roll having a printing layer 22 in which letters, patterns, designs, etc. are formed on the surface of a thermoplastic resin film 21, and the film roll 2 is attached to an arm on the movable platen 13 side of the mold clamping mechanism of the injection molding machine. One end of the rewound film 21 is fixed to the take-up shaft 31 side, and marks are formed on the film so that it is rewound a predetermined length in synchronization with the injection cycle of the injection molding machine. has been done.
５は射出成形機の固定盤５３に取り付けた雄金型で、該
雄金型５の略中央にはノズルタッチ部５１と射出成形機
５１１のノズル５１２より射出される溶融樹脂５１３を
キャビティ側に案内するスプール５２並びランナーが形
成され、かつ金型の型開き時、絵付は成形品５４が同時
に後退できるようにアンダカットが形成されている。Reference numeral 5 denotes a male mold attached to a fixed platen 53 of an injection molding machine, and the male mold 5 has a nozzle touch part 51 approximately in the center, and a molten resin 513 injected from a nozzle 512 of the injection molding machine 511 is placed on the cavity side. A guide spool 52 and a runner are formed, and an undercut is formed so that the molded product 54 can be retreated at the same time when the mold is opened.
６は前記加圧流体の吹き出し口１２．１２．．。6 is the pressurized fluid outlet 12.12. ．． .
に連通ずる配管で、該配管６はコンプレッサー側と連通
する枝管６１と真空ポンプ側に連通する枝管６２とを有
し、各枝管６１．６２にはそれぞれ切換バルブ６１１．
６２１が設けられている。The pipe 6 has a branch pipe 61 communicating with the compressor side and a branch pipe 62 communicating with the vacuum pump side, and each branch pipe 61.62 is provided with a switching valve 611.
621 is provided.
本発明方法は以上の如く具体化された構成の１つに適用
する。The method of the present invention is applied to one of the embodiments as described above.
まず、射出成形機の運転開始にともない、型締機構側の
フィルム巻き出し操作により絵付はフィルムは雌金型ｌ
の開口端に当接若しくは近接した状態でフィルム巻き取
り側に所要長さ巻き取られるとセンサーがフィルム側の
マークを検知することにより停止し、次Ｕ′）で、真空
ポンプの作動と相俟フて絵付はフィルムは雌金型の吸引
、吹き出し口を通じて該雌金型内に真空成形すると同時
に雌金型内に吸着される。First, when the injection molding machine starts operating, the film is unwound from the mold clamping mechanism and the film is removed from the female mold l.
When the film is wound to the required length on the film winding side while in contact with or in close proximity to the open end of For painting, the film is vacuum-formed into the female mold through the suction and air outlet of the female mold, and is simultaneously sucked into the female mold.
続いて、真空成形された絵付はフィルムを金型に吸着し
た状態で、これを雌金型とし、これに雄金型を前進せし
めて閉じ、該両全型間のキャビティに溶融合成樹脂を圧
入し、射出終了まで吸引し、成形、保圧冷却後真空ポン
プ側の切換バルブを閉じ、コンプレッサー側の切換バル
ブを開き、昇圧中が良いのか圧が下った雌金型内に加圧
空気を送り込むことにより不要フィルムを離型すること
ができる。Next, for the vacuum-formed decoration, with the film adsorbed to the mold, this is used as a female mold, and the male mold is advanced to close it, and molten synthetic resin is press-fitted into the cavity between the two molds. Then, suction is carried out until the end of injection, and after molding and cooling while maintaining pressure, close the switching valve on the vacuum pump side, open the switching valve on the compressor side, and send pressurized air into the female mold where the pressure has dropped, whether it is during pressure increase or not. This allows unnecessary film to be released from the mold.
「発明の効果」
射出成形後、雌金型内に吸着されている不要になった絵
なしフィルムは空圧によりパーティング面まで離型され
ると共に浮かせた形により次工程のスタートと同時に巻
き取りロール側にスムーズに巻き取られるため、絵付は
フィルムの印刷層が雌金型の所定位置までトラブル無し
に供給することができる。``Effects of the invention'' After injection molding, the unnecessary picture-less film adsorbed inside the female mold is released from the mold to the parting surface by air pressure, and the floating shape allows it to be rolled up at the same time as the start of the next process. Since it is smoothly wound onto the roll side, the printed layer of the film can be fed to the predetermined position of the female mold without any trouble.
従って、本゛発明方法によるときは複雑な離型機構など
を必要とせず、きわめて簡単な空圧のみて目的を達成す
ることができ、金型開きと同時に加圧空気が吹き出され
ているため、時間的ロスが少なくてすみ、コスト低減に
役立つ等本発明特有の効果を有する。Therefore, when using the method of the present invention, there is no need for a complicated mold release mechanism, and the purpose can be achieved using only extremely simple air pressure, and pressurized air is blown out at the same time as the mold is opened. This invention has effects unique to the present invention, such as requiring less time loss and helping to reduce costs.
第１図は本発明方法を具体化した装置の概略説明図、第
２図は第１図１点鎖線Ａ内の断面拡大図、第３図は完成
品の斜視図である。
符号の説明
１：雌金型
２：フィルムロール
３：シャフト
５：雄金型
６：配管 ６１．８２：枝管FIG. 1 is a schematic explanatory diagram of an apparatus embodying the method of the present invention, FIG. 2 is an enlarged cross-sectional view taken along the dashed line A in FIG. 1, and FIG. 3 is a perspective view of the finished product. Explanation of symbols 1: Female mold 2: Film roll 3: Shaft 5: Male mold 6: Piping 61.82: Branch pipe
Claims (1)
金型に真空成形方法により所要形状に成形し、その後雌
金型と雄金型を閉じると共に溶融合成樹脂を圧入するこ
とによる射出成形同時絵付けにおいて、射出成形保圧冷
却工程後金型開放と共に雌金型内に真空成形されていた
フィルムを雌金型より剥離せしむる離型工程とからなる
ことを特徴とするフィルム離型方法。Simultaneous injection molding by molding thermoplastic synthetic resin film printed with letters, designs, etc. into the desired shape using a vacuum forming method in a female mold, then closing the female mold and male mold and press-fitting molten synthetic resin. A method for releasing a film in painting, which comprises a releasing step of opening the mold after the injection molding holding pressure cooling step and peeling off the film vacuum-formed in the female mold from the female mold. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2558888A JPH01202415A (en) | 1988-02-08 | 1988-02-08 | Film release method, in simultaneous injection molding and molded-in foil decoration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2558888A JPH01202415A (en) | 1988-02-08 | 1988-02-08 | Film release method, in simultaneous injection molding and molded-in foil decoration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01202415A true JPH01202415A (en) | 1989-08-15 |
Family
ID=12170074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2558888A Pending JPH01202415A (en) | 1988-02-08 | 1988-02-08 | Film release method, in simultaneous injection molding and molded-in foil decoration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01202415A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0730937A1 (en) * | 1994-11-21 | 1996-09-11 | Apic Yamada Corporation | A resin molding machine with release film |
| EP2098478A1 (en) * | 2008-03-07 | 2009-09-09 | Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO | Manufacturing micro components including a cover structure. |
| JP2015168244A (en) * | 2014-03-11 | 2015-09-28 | パナソニックＩｐマネジメント株式会社 | Decorative molding method and apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59202830A (en) * | 1983-05-04 | 1984-11-16 | Dainippon Printing Co Ltd | Injection molding device for foil decorating |
-
1988
- 1988-02-08 JP JP2558888A patent/JPH01202415A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59202830A (en) * | 1983-05-04 | 1984-11-16 | Dainippon Printing Co Ltd | Injection molding device for foil decorating |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0730937A1 (en) * | 1994-11-21 | 1996-09-11 | Apic Yamada Corporation | A resin molding machine with release film |
| CN1061929C (en) * | 1994-11-21 | 2001-02-14 | 山田尖端科技株式会社 | Resin molding machine with release film |
| EP2098478A1 (en) * | 2008-03-07 | 2009-09-09 | Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO | Manufacturing micro components including a cover structure. |
| WO2009110801A2 (en) * | 2008-03-07 | 2009-09-11 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Manufacturing micro components including a cover structure |
| WO2009110801A3 (en) * | 2008-03-07 | 2009-11-12 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Manufacturing micro components including a cover structure |
| JP2015168244A (en) * | 2014-03-11 | 2015-09-28 | パナソニックＩｐマネジメント株式会社 | Decorative molding method and apparatus |
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