JP4906620B2 - Method and apparatus for manufacturing film-formed molded product - Google Patents

Method and apparatus for manufacturing film-formed molded product Download PDF

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JP4906620B2
JP4906620B2 JP2007187793A JP2007187793A JP4906620B2 JP 4906620 B2 JP4906620 B2 JP 4906620B2 JP 2007187793 A JP2007187793 A JP 2007187793A JP 2007187793 A JP2007187793 A JP 2007187793A JP 4906620 B2 JP4906620 B2 JP 4906620B2
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film
mold
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molded product
molded
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JP2009023189A (en
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隆男 梅澤
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Mitsuba Corp
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Description

本発明は、射出成型した未成膜成型品の表面に成膜をして成膜成型品を製造するための成膜成型方法および成膜成型装置の技術分野に属するものである。   The present invention belongs to the technical field of a film forming method and a film forming apparatus for manufacturing a film forming product by forming a film on the surface of an injection-molded non-film forming product.

一般に、エンブレム等の成膜成型品は射出成形した未成膜成型品の表面に成膜を施して製造することになるが、このようなものの製造手段として、射出成型用の金型に成膜装置を設け、未成膜状態の成型品を射出成型した後、該未成膜成型品の表面を成膜装置に突き当て、該表面に成膜を施すようにしたものを提唱し、これによって成膜成型品を一連の製造工程で簡単に製造できるようにした（例えば特許文献１参照）。
特開２００６−１６８１６０号公報 In general, film-forming molded products such as emblems are manufactured by forming a film on the surface of an injection-molded non-film-formed molded product. After the injection molding of a molded product in a non-film-formed state, the surface of the non-film-formed molded product was abutted against a film forming apparatus, and a film was formed on the surface. The product can be easily manufactured in a series of manufacturing processes (see, for example, Patent Document 1).
JP 2006-168160 A

ところが前記提唱したものにおいて、成膜を施す部分が金型を脱型したときに露出している表面全体であるような場合、金型と未成膜成型品との境界部分（周端縁部分）金型が存在するため、該金型が邪魔になって綺麗で整然とした成膜を施すことができないという問題がある。しかも成膜時、成膜空間を真空にする必要があるが、型面と未成膜成型品とのあいだの狭い隙間にガス（空気）が存在し、このガスまでを吸引して真空状態にするのに時間がかかって作業性が悪いという問題があり、ここに本発明の解決すべき課題がある。   However, in the above-mentioned proposal, when the part to be formed is the entire surface exposed when the mold is removed, the boundary part (peripheral edge part) between the mold and the non-deposited molded product Since the mold exists, there is a problem in that the mold cannot be used to form a beautiful and orderly film. In addition, during film formation, the film formation space must be evacuated, but a gas (air) exists in a narrow gap between the mold surface and the non-film-formed molded product, and this gas is sucked to be in a vacuum state. However, there is a problem that it takes time and workability is poor, and here is a problem to be solved by the present invention.

本発明は、上記の如き実情に鑑みこれらの課題を解決することを目的として創作されたものであって、請求項１の発明は、型合わせした第一金型と第二金型とのあいだで未成膜成型品を射出成型する射出工程と、該未成膜成型品を第二金型から型離れしたときに露出する該未成膜成型品の表面に、成膜装置により成膜して成膜成型品を製造する成膜工程とを備えた成膜成型方法であって、未成膜成型品は、第一金型に設けられる孔状の型面に入り込む支持脚が裏面に形成されたものとし、前記成膜工程では、支持脚を中間位置まで孔状型面から押出して未成膜成型品の裏面が第一金型の裏面成型用型面から浮き上げた状態で行うようにしたことを特徴とする成膜成型品の製造方法である。
請求項２の発明は、成膜工程での支持脚の中間位置までの押出しは、成膜成型品を第一金型から脱型するためのエジェクターピンであることを特徴とする請求項１記載の成膜成型品の製造方法である。
請求項３の発明は、未成膜成型品を射出成型するための型面が形成される第一、第二の金型と、該成型された未成膜成型品を第二金型から型離れしたときに露出する該未成膜成型品の表面に成膜を施すべく設けた成膜装置とを備えた成膜成型品の成膜成型装置であって、第一金型には、未成膜成型品の裏面に支持脚を成型するための孔状型面が形成されたものとし、該孔状型面には、前記成膜を施す際に支持脚を中間位置まで孔状型面から押出して未成膜成型品の裏面が第一金型の裏面成型用型面から浮き上げた状態で行うための押出しピンが設けられていることを特徴とする成膜成型品の製造装置である。
請求項４の発明は、押出しピンは、成膜成型品を第一金型から脱型するためのエジェクターピンであることを特徴とする請求項３記載の成膜成型品の製造装置である。 The present invention was created with the object of solving these problems in view of the above-mentioned circumstances, and the invention of claim 1 is the invention between the first mold and the second mold that are matched with each other. An injection process for injection-molding a non-film-formed molded product and a film-forming device to form a film on the surface of the non-film-formed molded product exposed when the non-film-molded product is separated from the second mold A film forming method including a film forming process for manufacturing a molded product, wherein an unfilmed molded product has a support leg that enters a hole-shaped mold surface provided in the first mold on the back surface. In the film forming step, the support leg is pushed out from the hole mold surface to an intermediate position, and the back surface of the undeposited molded product is lifted from the back mold surface of the first mold. It is the manufacturing method of the film-forming molded article which is taken.
The invention according to claim 2 is characterized in that the extrusion to the middle position of the support leg in the film forming step is an ejector pin for releasing the film-forming molded product from the first mold. It is a manufacturing method of the film-forming molded article.
According to the invention of claim 3, the first and second molds on which mold surfaces for injection molding of the non-film-formed molded product are formed, and the molded non-film-formed molded product are separated from the second mold. And a film forming apparatus for forming a film on the surface of the undeposited molded article that is exposed at times, wherein the first mold includes an undeposited molded article. It is assumed that a hole mold surface for molding the support leg is formed on the back surface of the mold, and the support leg is extruded from the hole mold surface to the middle position when the film is formed. An apparatus for producing a film-molded product, characterized in that an extrusion pin is provided for performing the process in a state where the back surface of the film-molded product is lifted from the back-surface mold surface of the first mold.
The invention according to claim 4 is the apparatus for producing a film-formed molded article according to claim 3, wherein the extrusion pin is an ejector pin for releasing the film-formed molded article from the first mold.

請求項１または３の発明とすることにより、射出成型された未成膜成型品の第二金型から脱型されて第一金型から露出する表面は、該第一金型から離間した浮き上がった状態になり、この結果、成膜工程において第一金型が邪魔になることがないばかりでなく、未成膜成型品と第一金型の型面とのあいだが開くことになって、ここに入り込んでいるガス抜きが容易になり、製品精度が向上すると共に生産性のアップを図れることになる。
請求項２または４の発明とすることにより、成膜工程で未成膜成型品を浮き上がらせるピンが、成膜成型品を第一金型から脱型するためのエジェクターピンに兼用されるため、装置の部品点数を低減できて簡略化を達成できることになる。 According to the first or third aspect of the present invention, the surface exposed from the first mold after being removed from the second mold of the injection-molded non-film-formed molded product is lifted away from the first mold. As a result, not only the first mold does not get in the way in the film forming process, but also the unmolded molded product and the mold surface of the first mold are opened. The degassing that has entered can be facilitated, the product accuracy can be improved and the productivity can be increased.
According to the invention of claim 2 or 4, the pin that lifts the non-film-formed molded product in the film-forming process is also used as an ejector pin for releasing the film-formed molded product from the first mold. The number of parts can be reduced and simplification can be achieved.

次ぎに、本発明の実施の形態について、図面に基づいて説明する。図中、１はエンブレムに代表される成型成膜品であって、該成型成膜品１は、本体１ａの表面全体に成膜２が施されると共に、裏面１ｂには該本体１ａを躯体（組込み部材）側に取り付けるため躯体側に設けた取付け孔（図示せず）に挿入支持するための支持脚１ｃが突設されて形成されている。   Next, embodiments of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a molded film product represented by an emblem. The molded film product 1 is formed with a film 2 on the entire surface of the main body 1a, and the main body 1a is encased on the back surface 1b. A support leg 1c for insertion and support is formed in a projecting manner in a mounting hole (not shown) provided on the housing side for mounting on the (built-in member) side.

３、４は前記成型成膜品を製造するための金型であって、本実施の形態では、金型３を固定金型（本発明の「第一金型」に相当する）、金型４を可動金型（本発明の「第二金型」に相当する）とし、そして可動金型４を、固定金型３に対して離接移動と型面同士の平行移動とを行うことで相対移動ができるようになっているが、これらの移動機構については何れも従来のものを採用することができるので、その詳細については省略する。   Reference numerals 3 and 4 denote molds for producing the molded film-formed product. In the present embodiment, the mold 3 is a fixed mold (corresponding to the “first mold” of the present invention), a mold 4 is a movable mold (corresponding to the “second mold” of the present invention), and the movable mold 4 is moved to and away from the fixed mold 3 and translated between the mold surfaces. Although the relative movement can be performed, any of these moving mechanisms can be employed in the related art, and the details thereof will be omitted.

前記固定金型３には、成型成膜品１の裏面１ｂを形成するための型面３ａと支持脚１ｃとを形成するための型面３ｂが形成されている。これに対し可動金型４には、成型成膜品１の表面を形成するための型面４ａと、未成膜成型品１Ｘの表面に成膜２を施すための成膜装置５が設けられた凹状の成膜部６とが形成されている。前記成膜装置５は、成膜部６に一体的に設けられるケーシング７を備えて構成されており、該ケーシング７には、可動金型４側が開口する凹溝形状のターゲット室７ａが形成され、該ターゲット室７ａに、未成膜成型品１Ｘの表面に成膜２を施す手段であるマグネトロンスパッタリング装置５ａが収容（内装）されている。ここで、成膜装置５として組み込まれる成膜手段としては、種々のスパッタリング装置、真空蒸着装置等、通常知られたものを適宜用いることができ、本実施の形態では、前述したように、マグネトロンスパッタリング装置５ａが用いられている。前記マグネトロンスパッタリング装置５ａは、成膜方向の直進性が低減され、よりムラのない成膜ができるような装置として汎用されており、ここでの詳細な説明は省略するが、真空ポンプＰ、吸気路８、マグネット９、成膜素材（金属）が設けられたターゲット１０、図示しない不活性ガス供給路等の各種部材装置を備えて構成されている。尚、本実施の形態では、生産効率を高めるため、固定金型４には、成膜装置５の両側に位置して成型成膜品１の表面を形成するための前記型面４ａがそれぞれ形成され、これによって成型と成膜とを同時的に行えるようになっている。   The fixed mold 3 is formed with a mold surface 3a for forming the back surface 1b of the molded film-formed product 1 and a mold surface 3b for forming the support legs 1c. On the other hand, the movable mold 4 is provided with a mold surface 4a for forming the surface of the molded film-formed product 1 and a film-forming apparatus 5 for performing film formation 2 on the surface of the non-film-formed molded product 1X. A concave film forming portion 6 is formed. The film forming apparatus 5 includes a casing 7 that is provided integrally with the film forming unit 6, and a concave chamber-shaped target chamber 7 a that opens on the movable mold 4 side is formed in the casing 7. In the target chamber 7a, a magnetron sputtering apparatus 5a, which is a means for performing film formation 2 on the surface of the non-film-formed molded product 1X, is accommodated (interior). Here, as the film forming means incorporated as the film forming apparatus 5, various known apparatuses such as various sputtering apparatuses and vacuum vapor deposition apparatuses can be appropriately used. In the present embodiment, as described above, the magnetron is used. A sputtering apparatus 5a is used. The magnetron sputtering apparatus 5a is widely used as an apparatus in which the straightness in the film forming direction is reduced and the film can be formed more evenly. The detailed description here is omitted, but the vacuum pump P, the intake air It is configured to include various members such as a path 8, a magnet 9, a target 10 provided with a film forming material (metal), and an inert gas supply path (not shown). In the present embodiment, in order to increase production efficiency, the fixed mold 4 is formed with the mold surfaces 4a for forming the surface of the molded film-formed product 1 located on both sides of the film-forming apparatus 5. Thus, molding and film formation can be performed simultaneously.

１１は固定金型３に設けられるエジェクターピンであって、該エジェクターピン１１は、支持突起１ｃを型面３ｂから突き出して成膜成型品１を固定金型３から脱型するようになっているが、該エジェクターピン１１は、前記成膜工程では、未成膜成型品１Ｘの支持突起１ｃを型面３ｂの中途位置まで押出すようになっており、そして未成膜成型品１Ｘの表面に成膜２を施して成型成膜品１にした後、さらに支持突起１ｃを押出して固定金型３から成膜成型品１を脱型するように設定されている。   Reference numeral 11 denotes an ejector pin provided on the fixed mold 3, and the ejector pin 11 protrudes the support protrusion 1 c from the mold surface 3 b to remove the film-forming molded product 1 from the fixed mold 3. However, in the film forming step, the ejector pin 11 pushes the support protrusion 1c of the non-film-formed molded product 1X to the middle position of the mold surface 3b, and forms a film on the surface of the non-film-formed molded product 1X. After forming the molded film-formed product 1 by applying 2, the support projection 1 c is further extruded to remove the film-formed molded product 1 from the fixed mold 3.

叙述のごとく構成された本発明の実施の形態において、成膜成型品１を製造するにあたり、成膜成型品１の裏面に、躯体側に取付け支持するための支持脚１ｃが形成されたものとし、そしてこの支持脚１ｃを、成膜工程では、型面３ｂから中間位置まで押出して、未成膜成型品１Ｘの裏面が固定金型３の裏面形成用型面３ａから離間した浮き上がった状態で該未成膜成型品１Ｘの表面に成膜が施されることになる。この結果、未成膜成型品１Ｘの周端縁は固定金型３から離間した状態で成膜されることになって、固定金型３が邪魔して周端縁の成膜が綺麗に施されないような不具合が解消される。しかも未成膜成形体１Ｘの裏面と固定金型の型面３ａとが離間して隙間が開くことになるから、この間に存在するガス抜きが容易になって真空引きの時間が短縮し、作業性が向上する。   In the embodiment of the present invention configured as described above, in manufacturing the film-formed molded article 1, it is assumed that support legs 1c for mounting and supporting on the housing side are formed on the back surface of the film-formed molded article 1. In the film forming step, the support leg 1c is pushed from the mold surface 3b to an intermediate position, and the back surface of the non-film-formed molded product 1X is lifted away from the back surface forming mold surface 3a of the fixed mold 3. Film formation is performed on the surface of the non-film-formed molded article 1X. As a result, the peripheral edge of the non-film-formed molded product 1X is formed in a state of being separated from the fixed mold 3, and the fixed mold 3 is obstructed so that the peripheral edge is not neatly formed. Such problems are resolved. In addition, since the back surface of the non-film-formed molded body 1X and the mold surface 3a of the fixed mold are separated from each other and a gap is opened, the degassing that exists between them is facilitated, and the time required for evacuation is shortened. Will improve.

しかもこのものでは、成膜工程で未成膜成型品１Ｘの支持脚１ｃを中間まで押出すピンが、成膜成型品を固定金型３から離型させるため設けられるエジェクターピンであるから、専用の押出しピンが不要になって部品の兼用化が図れ、これによって装置の部品点数を殊更増加させることもなく、単にエジェクターピンの押出し位置を二段に制御すればよいことになって装置構成が複雑になることを回避できる。   In addition, in this case, the pin that pushes the support leg 1c of the non-film-formed molded product 1X to the middle in the film forming process is an ejector pin that is provided to release the film-formed molded product from the fixed mold 3. The push pin is no longer required, and the parts can be shared. This makes it possible to control the ejector pin push position in two stages without increasing the number of parts in the device, making the device structure complicated. Can be avoided.

なお、本発明は前記実施の形態に限定されるものでないことは勿論であって、前記成膜後、成膜面に樹脂材を二次射出する等の後加工ができることはいうまでもない。また金型については、両者が相対移動するものであれば良く、固定金型、可動金型を逆の構成にしても勿論実施することができる。   Needless to say, the present invention is not limited to the above-described embodiment, and after the film formation, post-processing such as secondary injection of a resin material onto the film formation surface can be performed. Further, the molds only need to move relative to each other. Of course, the fixed mold and the movable mold can be reversed.

（Ａ）成膜成型品の平面図、（Ｂ）成膜成型品の断面図である。(A) Top view of film-forming molded product, (B) Cross-sectional view of film-forming molded product. 成膜成形装置の概略図である。1 is a schematic view of a film forming apparatus. 成膜成形装置の要部拡大図である。It is a principal part enlarged view of the film-forming apparatus.

符号の説明Explanation of symbols

１ 成膜成型品
１Ｘ 未成膜成型品
１ｃ 支持脚
２ 成膜
３ 固定金型
３ａ 裏面の型面
３ｂ 支持脚の型面
４ 可動金型
４ａ 表面の型面
５ 成膜装置
１１ エジェクターピン DESCRIPTION OF SYMBOLS 1 Film-forming molded product 1X Non-film-forming molded product 1c Support leg 2 Film-forming 3 Fixed mold 3a Back mold surface 3b Support leg mold surface 4 Movable mold 4a Surface mold surface 5 Deposition device 11 Ejector pin

Claims (4)

型合わせした第一金型と第二金型とのあいだで未成膜成型品を射出成型する射出工程と、該未成膜成型品を第二金型から型離れしたときに露出する該未成膜成型品の表面に、成膜装置により成膜して成膜成型品を製造する成膜工程とを備えた成膜成型方法であって、未成膜成型品は、第一金型に設けられる孔状の型面に入り込む支持脚が裏面に形成されたものとし、前記成膜工程では、支持脚を中間位置まで孔状型面から押出して未成膜成型品の裏面が第一金型の裏面成型用型面から浮き上げた状態で行うようにしたことを特徴とする成膜成型品の製造方法。   An injection process in which an undeposited molded product is injection-molded between the first mold and the second mold, and the non-deposited mold that is exposed when the undeposited mold is separated from the second mold. A film forming method comprising a film forming step of manufacturing a film forming product by forming a film on a surface of a product with a film forming apparatus, wherein the non-film forming product has a hole shape provided in the first mold In the film forming step, the support leg is pushed out from the hole mold surface to the middle position, and the back surface of the non-deposited molded product is used for the back molding of the first mold. A method for producing a film-forming molded product, characterized in that the method is performed in a state of being lifted from a mold surface. 成膜工程での支持脚の中間位置までの押出しは、成膜成型品を第一金型から脱型するためのエジェクターピンであることを特徴とする請求項１記載の成膜成型品の製造方法。   2. The production of a film-forming molded product according to claim 1, wherein the extrusion to the middle position of the support leg in the film-forming step is an ejector pin for removing the film-forming molded product from the first mold. Method. 未成膜成型品を射出成型するための型面が形成される第一、第二の金型と、該成型された未成膜成型品を第二金型から型離れしたときに露出する該未成膜成型品の表面に成膜を施すべく設けた成膜装置とを備えた成膜成型品の成膜成型装置であって、第一金型には、未成膜成型品の裏面に支持脚を成型するための孔状型面が形成されたものとし、該孔状型面には、前記成膜を施す際に支持脚を中間位置まで孔状型面から押出して未成膜成型品の裏面が第一金型の裏面成型用型面から浮き上げた状態で行うための押出しピンが設けられていることを特徴とする成膜成型品の製造装置。   First and second molds on which mold surfaces for injection molding of an undeposited molded article are formed, and the undeposited film that is exposed when the molded undeposited molded article is separated from the second mold A film forming apparatus for forming a film with a film forming apparatus provided for forming a film on the surface of the molded article, and forming a support leg on the back surface of the non-film forming product on the first mold. A hole mold surface is formed on the hole mold surface, and when the film is formed, the support leg is pushed out from the hole mold surface to an intermediate position so that the back surface of the non-film-formed molded product is the first surface. An apparatus for producing a film-molded article, characterized in that an extrusion pin is provided for performing in a state of being lifted from the mold surface for molding the back surface of a single mold. 押出しピンは、成膜成型品を第一金型から脱型するためのエジェクターピンであることを特徴とする請求項３記載の成膜成型品の製造装置。   4. The apparatus for producing a film-formed molded article according to claim 3, wherein the extrusion pin is an ejector pin for removing the film-formed molded article from the first mold.
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