WO2012043391A1 - Produit moulé en résine et moule de fabrication de produit moulé en résine - Google Patents

Produit moulé en résine et moule de fabrication de produit moulé en résine Download PDF

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Publication number
WO2012043391A1
WO2012043391A1 PCT/JP2011/071654 JP2011071654W WO2012043391A1 WO 2012043391 A1 WO2012043391 A1 WO 2012043391A1 JP 2011071654 W JP2011071654 W JP 2011071654W WO 2012043391 A1 WO2012043391 A1 WO 2012043391A1
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WO
WIPO (PCT)
Prior art keywords
resin
region
functional component
molded product
electrical functional
Prior art date
Application number
PCT/JP2011/071654
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English (en)
Japanese (ja)
Inventor
西村剛
鈴木貴博
Original Assignee
日本写真印刷株式会社
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 日本写真印刷株式会社 filed Critical 日本写真印刷株式会社
Publication of WO2012043391A1 publication Critical patent/WO2012043391A1/fr

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    • 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
    • B29C45/1671—Making multilayered or multicoloured articles with an insert

Definitions

  • the present invention relates to a resin molded product in which a resin part is laminated on a sheet-like electrical functional component and an injection mold used for the production.
  • An electrical functional component is a component that adds an electrical function to various products such as electronic devices, and may be arranged on the surface of various products depending on the application.
  • the electrical functional component is often configured by laminating resin portions.
  • a plastic plate having an additional function such as electromagnetic wave shielding by laminating a thermoplastic resin 4 on a thermoplastic resin film (electrical functional component) 1 on which a conductive layer is formed (Patent Document 1, FIG. 12).
  • resin molded product in which resin portions 4 and 5 are laminated on the front and back surfaces of the sheet-like electrical functional component 1 (see Patent Document 2 and FIG. 13). In any of these resin molded products, at least one layer of the resin portion is laminated on the entire surface of the electrical functional component 1 so that the occurrence of warpage is suppressed.
  • the electrical functional component 1 is arranged on the front side of various products, the resin part 4 is interposed between the control circuit and the like on the product body side. For this reason, both cannot be electrically connected as they are, and in order to electrically connect both, it is necessary to have a special structure such as partially providing a through hole in the resin portion.
  • the electrical functional component 1 is an intermediate layer, and the electrical functional component 1 is exposed by reducing one resin portion 5 to make electrical connection with the control circuit on the main body side. Connection is possible.
  • the resin parts 4 and 5 exist on the front and back sides of the electrical functional component 1 and the resin molded product has a three-layer structure, the resin molded product tends to be thick. Moreover, since the resin part of the product exists on the front side of the electrical functional component 1, for example, when the electrical functional component 1 is an antenna, the function as an antenna (electrical functional component) may not be sufficiently exhibited. there were.
  • the present invention is to provide a resin molded product capable of being thinned while being electrically connected from the front side to the back side with a simple structure, and a mold used for manufacturing the resin molded product.
  • 1st characteristic structure of the resin molded product which concerns on this invention is a resin molded product which has a resin part in the front side and back side of a sheet-like electrical functional component, Comprising: The said electrical functional component is exposed to the front side. Displacement of the first region, the second region exposed on the back side, the first region and the second region to the front side and the back side of the resin molded product, and connecting to electrically connect each other
  • the first resin portion is disposed on the back side of the first region as the resin portion on the back side of the electrical functional component
  • the second resin portion on the front side of the electrical functional component is the second resin portion.
  • the second resin portion is arranged on the front side of the region.
  • the electrical functional parts can be arranged on the surface of the resin molded product and fully exhibit the electrical functions. Further, the first region exposed on the front side and the second region exposed on the back side can be electrically connected to each other by the connection region, and the control circuit arranged on the apparatus main body side and the electricity appearing on the back side of the resin molded product It is possible to connect to the terminals of the functional parts.
  • the two-layer resin portions arranged on the front side and the back side of the electrical functional component are not laminated in the thickness direction of the resin molded product, but in the thickness direction, the first region of the electrical functional component and the first region One resin part is laminated, and the second region and the second resin part are laminated.
  • the electrical functional component and one resin part are laminated in the thickness direction, and the thickness is A thin resin molded product can be obtained.
  • the second characteristic configuration of the resin molded product according to the present invention is that the electrical functional component has a base sheet on the surface.
  • the first intersecting region where the connection region and the first region intersect, and the connection region and the second region intersect. At least one of the second intersecting regions is formed in an R shape.
  • the first resin portion is arranged from the back side of the first region.
  • the second resin portion is disposed from the front side of the second region.
  • a fourth characteristic configuration of the resin molded product according to the present invention is that a decorative layer is provided on at least one surface of the first region and the second resin portion exposed on the front side.
  • the decorative layer When the decorative layer is provided on the surface of the first region of the electrical functional component exposed on the front side of the resin molded product, depending on the type of the electrical functional component, the decorative layer is disposed on the front side of the resin molded product. It is also possible to conceal the electrical functional component, and it is possible to improve the decorativeness of the electrical functional component. Moreover, when the decoration layer is provided in the surface of the 2nd resin part exposed to the front side of a resin molded product, while the decorating property of a 2nd resin part improves, it is arrange
  • a first characteristic configuration of an injection mold according to the present invention is an injection mold used for manufacturing a resin molded product having a resin portion on the front side and the back side of an electrical functional component, which is a movable mold. And a first fixed mold that forms a first cavity between the movable mold and mold clamping, and the electrical functional component is disposed along a cavity surface of the first fixed mold. A first gate from which a first resin is injected so as to form a first resin portion in the cavity, and the first resin portion is fixed to the electrical functional component, and then moves while holding the first resin portion.
  • a second resin is injected so as to form a second resin part in the second cavity, and a second fixed mold that forms a second cavity between the movable mold and the electrical functional component by clamping the mold.
  • a second gate, the first cavity and the It lies in that the second cavity is configured to be formed in a different region of the plane perpendicular direction to the clamping direction.
  • the first resin is injected into the first cavity formed by clamping the movable mold and the first fixed mold, and the first resin portion is formed on one side of the electrical functional component.
  • Primary molding is performed, and then the first resin is injected into the second cavity formed by clamping the movable mold and the second fixed mold, and the second resin portion is provided on the other side of the electrical functional component.
  • Secondary forming is performed.
  • the first cavity and the second cavity are formed in different areas in the plane direction perpendicular to the clamping direction, the first area of the electrical functional component exposed on the front side is located behind the connection area as a boundary.
  • a resin molded product in which the first resin portion is formed and the second resin portion is formed on the front side of the second region of the electrical functional component exposed on the back side can be easily manufactured.
  • a second characteristic configuration of the injection mold according to the present invention is that the movable mold and the first fixed mold have a suction portion for sucking and holding the electrical functional component.
  • the electrical functional component is sucked and held by the first fixed mold suction portion during primary molding, and the electrical functional component is sucked and held by the movable suction portion during secondary molding.
  • the Therefore it is possible to prevent a problem that the molten resin to be injected wraps around from the peripheral edge portion of the electrical functional component during the injection molding.
  • the electrical functional component is sucked and held by the movable type and the first fixed type suction portions, the accuracy of alignment of the electrical functional component in the mold is improved. As a result, the resin portion is reliably injection-molded at a desired position of the resin molded product.
  • FIG. 3 is a perspective view of an electrical functional component. These are figures which show the manufacturing process of a resin molded product. These are figures which show the manufacturing process of a resin molded product. These are figures which show the manufacturing process of a resin molded product. These are figures which show the manufacturing process of a resin molded product. These are figures which show the resin molded product of 1st Embodiment, Comprising: (a) is a top view, (b) is sectional drawing. These are figures which show the resin molded product of 2nd Embodiment, Comprising: (a) is a top view, (b) is sectional drawing. These are figures which show the injection mold of another form. These are sectional drawings of the resin molded product of 3rd Embodiment.
  • the electrical functional component 1 has a sheet shape as a whole.
  • the electrical functional component 1 is configured by forming an electrode or the like as the electrical functional portion 3 on the base sheet 2.
  • the electrical functional component 1 is disposed on the surface of a resin molded product and adds an electrical function, and is, for example, an electrode, electronic paper, an antenna, a touch sensor, an EL sheet, or the like.
  • the electrical functional component 1 includes a first region 1A exposed on the front surface side of the resin molded product and a second region exposed on the back surface side of the resin molded product.
  • region 1B are displaced to the front side and back side of a resin molded product, and it shape
  • the electrical function unit 3 is continuously arranged in the first region 1A, the second region 1B, and the connection region 1C, and the terminal 3a is located in the second region 1B.
  • the base material sheet 2 may be colorless and transparent.
  • the base sheet 2 can be composed of various resins such as an acrylic resin and a polyolefin resin.
  • the two-color molding die used for manufacturing the resin molded product according to the present invention will be described.
  • the two-color molding die is provided in a two-color molding machine whose parts are shown in the drawing. As shown in FIGS. 2 to 5, the movable molds 11, 11, the first fixed mold 12, and the second Two fixed molds 13 are provided.
  • the two-color molding machine includes a fixed platen 14 and a rotary platen 15 that can rotate with respect to the fixed platen 14 and that can be moved back and forth.
  • the fixed platen 14 includes a first fixed mold 12 and a second fixed mold 13, and the rotary plate 15 includes movable molds 11 and 11.
  • the movable molds 11 and 11 and the first fixed mold 12 and the second fixed mold 13 are arranged so as to face each other. Therefore, as shown in FIG. 3, when the turntable 15 is pressed against the fixed platen 14, the movable molds 11, 11 and the first fixed mold 12 and the second fixed mold 13 are simultaneously clamped to inject the first resin. And the second resin can be injected at the same time.
  • the first resin and the second resin may be different color resins.
  • the first resin may be transparent, and the second resin may be colored to form a resin molded product having a transparent window.
  • the first resin may be polycarbonate resin, ABS resin, or an alloy of polycarbonate resin and ABS resin
  • the second resin may be PMMA (polymethyl methacrylate resin).
  • the movable mold 11 facing the second fixed mold 13 has a primary molded product F ⁇ b> 1 (the electrical functional component 1 and the first resin portion 4) molded in the previous process. ) Is held.
  • the first fixed mold 12 holds the electrical functional component 1 used in the subsequent primary molding.
  • the two-color molding machine includes a robot device 16 for installing the electrical functional component 1 on the first fixed mold 12.
  • the movable die 11 is provided with suction portions 17 and 17 for sucking and holding the electrical functional component 1
  • the first fixed die 12 is also provided with a suction portion 18 for sucking and holding the electrical functional component 1.
  • the first fixed mold 12 is provided with a gate 23 for injecting a first resin
  • the second fixed mold 13 is provided with a gate 24 for injecting a second resin.
  • the first resin is injected from the first gate 23 of the first fixed mold 12 toward the first cavity 21.
  • the electrical functional component 1 is pressed against the first fixed mold 12 by the pressure of the injected first resin.
  • the first resin portion 4 is molded on the back side of the first region 1A of the electrical functional component 1 by the injection of the first resin, and the first resin is injected on the back side of the second region 1B of the electrical functional component 1.
  • the primary molded product F1 provided with the electrical functional component 1 and the first resin portion 4 is molded.
  • Step of forming second cavity As shown in FIG. 5, after opening the mold, with the movable mold 11 holding the primary molded product F ⁇ b> 1 (the electrical functional component 1 and the first resin portion 4), the turntable 15 is rotated 180 degrees, The position is opposite to the second fixed mold 13. Thereafter, the turntable 15 is moved to the fixed platen 14 side, and the movable mold 11 and the second fixed mold 13 are clamped. As shown in FIG. 3, the primary molded product F1 supported by the movable mold 11 is obtained. A second cavity 22 is formed between the electrical functional component 1 and the second fixed mold 13. At this time, the second region 1B of the electrical functional component 1 is sucked and held by the suction portion 17 provided in the movable mold 11 during mold clamping.
  • the second resin is injected from the second gate 24 of the second fixed mold 13 toward the second cavity 22. That is, the second resin is injected into the front side of the second region 1B in the electrical functional component 1, and the second resin portion 5 is molded. At this time, since the second cavity 22 is not formed on the front side of the first region 1A of the electrical functional component 1, the second resin is not injected. In addition, since the second region 1B of the electrical functional component 1 is sucked and held by the suction portion 17 when the second resin is injected, a problem that the second resin wraps around the back side of the second region 1B is prevented.
  • the rotary plate 15 is separated from the fixed platen 14, the movable mold 11 and the second fixed mold 13 are opened, and the solidified secondary molded product (resin molded product) P is movable. Remove from mold 11.
  • the turntable 15 is rotated 180 degrees so that the movable mold 11 holding the primary molded product F1 and the second fixed mold 13 are opposed to each other, and secondary molding is performed by injection of the second gate 24 of the second fixed mold 13.
  • the movable mold 11 from which the resin molded product P is taken out and the first fixed mold 12 are opposed to each other, and primary molding is performed by injection of the first gate 23 of the first fixed mold 12.
  • the resin molded product P is a first resin on the back side of the first region 1A of the electrical functional component 1 as a resin part on the back side of the electrical functional component 1.
  • the part 4 is arranged, and the second resin part 5 is arranged on the front side of the second region 1 ⁇ / b> B of the electrical functional component 1 as a resin part on the front side of the electrical functional part 1.
  • the electrical functional component 1 is exposed to the front side of the resin molded product P.
  • the first region 1A and the second region 1B exposed on the back side, the first region 1A and the second region 1B are displaced to the front side and the back side of the resin molded product P, and are connected so as to be electrically connected to each other.
  • the first resin portion 4 can be disposed on the back side of the first region 1A of the electrical functional component 1 as the resin portion on the back side of the resin molded product P, and the electrical functional component 1 as the resin portion on the front side of the resin molded product P.
  • the second resin portion 5 could be arranged on the front side of the second region 1B.
  • the electrical function component 1 is arranged on the surface of the resin molded product P, so that the electrical function can be sufficiently exhibited. Further, the first region 1A exposed on the front side and the second region 1B exposed on the back side can be electrically connected to each other by the connection region 1C, and the control circuit disposed on the apparatus main body side and the resin molded product P can be electrically connected. Connection with the terminal 3a of the electrical functional part (electrode) 3 of the electrical functional component 1 appearing on the back side becomes possible.
  • the two layers of the resin portions 4 and 5 arranged on the front side and the back side of the electrical functional component 1 are not laminated in the thickness direction of the resin molded product P, but the connection region 1C of the electrical functional component 1 is provided. It is arranged in a horizontal direction that is perpendicular to the thickness direction. For this reason, in the thickness direction of the resin molded product P, the first resin portion 4 is laminated in the first region 1A of the electrical functional component 1, and the second resin portion 5 is laminated in the second region 1B. That is, the resin molded product P is substantially configured in a state where the electrical functional component 1 and one layer of the resin portion are laminated in the thickness direction. Therefore, the resin molded product P can be thinned by adjusting the length and inclination of the connection region 1C or by reducing the thickness of the resin portion.
  • the sheet-like electrical functional component 1 is composed of only the electrical functional part 3, and is configured to be directly exposed to the surface of the resin molded product. May be.
  • the resin molded product P may have a configuration in which a decorative layer is provided on the surface of the first region 1A of the electrical functional component 1 exposed on the front side or the second resin portion 5.
  • a decorative sheet feeding device is provided in the second fixed mold 13 of the two-color molding machine.
  • the decorative sheet feeding device usually has a film sending device 31 that sends out a decorative film (transfer foil) 30, a film winding device 32 that winds up the decorative film 30, and a rectangular frame shape that sandwiches the decorative film 30. And a clamp 33.
  • a decorative layer 30a fused to the first region 1A of the electrical functional component 1 or the second resin portion 5 and a base sheet for handling are integrated.
  • the decorative layer 30a generally has a peeling protective layer that is the outermost layer of the final multilayer molded product and an adhesive layer that is fused to the resin portion, and generally between the peeling protective layer and the adhesive layer.
  • a pattern layer is provided.
  • the decorative film 30 is in close contact with the first region 1A and the second resin portion 5 of the electrical functional component 1. Thereafter, the base sheet of the decorative film 30 is naturally peeled off from the decorative layer 30a by mold opening, and only the decorative layer 30a is the first region 1A or the second of the electrical functional component 1 as shown in FIG. A secondary molded product (resin molded product) P transferred to the surface of the resin portion 5 is obtained.
  • a resin sheet such as a polypropylene resin, a polystyrene resin, a polyamide resin, a polyester resin, an acrylic resin, a polyvinyl chloride resin, or a sheet in which these are combined is used. Can do.
  • a release layer made of an aminoalkyd resin or the like may be formed between the base sheet and the decorative layer 30a.
  • the thickness of the base sheet is preferably 5 to 500 ⁇ m.
  • the material for the release protective layer examples include acrylic resins, polyester resins, polyvinyl chloride resins, cellulose resins, rubber resins, polyurethane resins, polyvinyl acetate resins, and vinyl chloride-vinyl acetate. Copolymers such as copolymer resins and ethylene-vinyl acetate copolymer resins can be used.
  • a photo-curing resin such as an ultraviolet curable resin, a radiation curable resin such as an electron beam curable resin, or a thermosetting resin may be selected and used.
  • the material for the adhesive layer should have a high affinity with the resin to be fused.
  • an acrylic resin may be used.
  • the material of the transferred material is a polyphenylene oxide / polystyrene resin, a polycarbonate resin, a styrene copolymer resin, or a polystyrene blend resin
  • an acrylic resin, a polystyrene resin, A polyamide resin or the like may be used.
  • the material of the transfer object is polypropylene resin, chlorinated polyolefin resin, chlorinated ethylene-vinyl acetate copolymer resin, cyclized rubber, or coumarone indene resin may be used.
  • the thickness of the adhesive layer is preferably 0.5 to 50 ⁇ m.
  • an intersection region between the connection region 1C of the electrical functional component 1 and the first region 1A or the second region 1B is a region in which a void is easily generated between the resin part. Therefore, in the present embodiment, as shown in FIG. 9, in the resin molded product P, the first intersecting region A where the connection region 1C of the electrical functional component 1 intersects the first region 1A, and the connection region 1C and the second region. A second intersection region B where the region 1B intersects is formed in an R shape.
  • the molten resin is injected along the intersecting region. It becomes easy to be done. Thereby, it is suppressed that a space
  • the electrical functional component 1 is formed after the electrical functional portion 3 is formed on the base sheet 2.
  • the electrical functional component 1 is the base sheet 2.
  • the electrical functional part 3 may be formed after molding. When the electrical functional component 1 is molded after the electrical functional part 3 is formed on the base sheet 2 by sticking, the electrical functional part 3 may be displaced from a desired position during molding. However, when the electrical functional part 3 is formed by pasting after the base material sheet 2 is molded, there is no such concern.
  • a plain base sheet or an insert sheet with a pattern or the like on the base sheet may be integrated as it is, or the decoration film 30 and the insert sheet are not used. Also good.
  • the decorative film 30 may be in the form of a sheet, and the insert sheet may be in the form of a film.
  • the turntable 15 that can be moved in and out in the lateral direction and rotatable about the axis along the lateral direction, and the first fixed mold and the second fixed mold.
  • the present invention is not limited to such a multilayer molding machine, but includes a first movable plate that is provided with a movable mold and can be moved in and out in the vertical direction, and a first movable mold that is slidable in the lateral direction.
  • Multi-layer molding machine equipped with two movable plates, or a movable plate equipped with movable molds that can be moved in and out in the horizontal direction, and the first fixed mold and the second fixed mold are mounted back to back and rotate around the vertical axis
  • the present invention can be widely used as an interior or exterior product of various products such as electronic devices equipped with electrical functional parts.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne un produit moulé en résine pouvant être réduit en termes d'épaisseur tout en obtenant une conduction électrique du côté de la surface avant vers le côté de surface arrière avec une structure simple, et la présente invention concerne en outre un moule utilisé pour fabriquer le produit moulé en résine. Le produit moulé en résine a des parties en résine sur les côtés avant et arrière d'un composant fonctionnel électrique en forme de feuille (1). Le composant fonctionnel électrique (1) a une première région (1A) exposée au côté avant, une deuxième région (1B) exposée au côté arrière, et une région de raccordement (1C) pour déplacer la première région (1A) et la deuxième région (1B) vers les côtés avant et arrière du produit moulé en résine et les raccorder l'une à l'autre de manière à être électriquement conductrices. En tant que partie de résine sur le côté arrière du composant fonctionnel électrique (1), une première partie de résine (4) est disposée sur le côté arrière de la première région (1A) ; en tant que partie de résine sur le côté avant du composant fonctionnel électrique (1), une deuxième partie de résine (5) est disposée sur le côté avant de la deuxième région (1B).
PCT/JP2011/071654 2010-09-29 2011-09-22 Produit moulé en résine et moule de fabrication de produit moulé en résine WO2012043391A1 (fr)

Applications Claiming Priority (2)

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JP2010218909A JP2012071519A (ja) 2010-09-29 2010-09-29 樹脂成形品及び樹脂成形品製造用金型
JP2010-218909 2010-09-29

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WO2012043391A1 true WO2012043391A1 (fr) 2012-04-05

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Publication number Priority date Publication date Assignee Title
TWI484280B (zh) * 2012-10-25 2015-05-11 Sipix Technology Inc 顯示裝置和顯示裝置的製造方法
KR101751244B1 (ko) * 2015-08-21 2017-06-28 엠티코리아 주식회사 이엘(el)필름 삽입 제품용 이중 사출 금형 및 성형방법

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57119571U (fr) * 1981-01-19 1982-07-24
JPH04283982A (ja) * 1991-03-12 1992-10-08 Meiki Co Ltd プリント回路基板の製法
JPH05190993A (ja) * 1992-01-16 1993-07-30 Dainippon Printing Co Ltd 一体型プリント基板成形体
JPH1051172A (ja) * 1996-07-31 1998-02-20 Pfu Ltd 電子機器用筐体およびその製造方法
JP2009500191A (ja) * 2005-07-05 2009-01-08 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ トランスファ成形により製造されるマイクロチップ組立体
JP2009255467A (ja) * 2008-04-21 2009-11-05 Fujicopian Co Ltd インモールド用転写フィルム
JP2011071977A (ja) * 2009-09-22 2011-04-07 Samsung Electro-Mechanics Co Ltd アンテナパターンフレーム、その製造方法及び製造金型、電子装置のケースの製造方法及び電子装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57119571U (fr) * 1981-01-19 1982-07-24
JPH04283982A (ja) * 1991-03-12 1992-10-08 Meiki Co Ltd プリント回路基板の製法
JPH05190993A (ja) * 1992-01-16 1993-07-30 Dainippon Printing Co Ltd 一体型プリント基板成形体
JPH1051172A (ja) * 1996-07-31 1998-02-20 Pfu Ltd 電子機器用筐体およびその製造方法
JP2009500191A (ja) * 2005-07-05 2009-01-08 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ トランスファ成形により製造されるマイクロチップ組立体
JP2009255467A (ja) * 2008-04-21 2009-11-05 Fujicopian Co Ltd インモールド用転写フィルム
JP2011071977A (ja) * 2009-09-22 2011-04-07 Samsung Electro-Mechanics Co Ltd アンテナパターンフレーム、その製造方法及び製造金型、電子装置のケースの製造方法及び電子装置

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JP2012071519A (ja) 2012-04-12

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