JP2013071271A - Excessive film trimming method for film decorative molding, and apparatus for the same - Google Patents

Excessive film trimming method for film decorative molding, and apparatus for the same Download PDF

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JP2013071271A
JP2013071271A JP2011210122A JP2011210122A JP2013071271A JP 2013071271 A JP2013071271 A JP 2013071271A JP 2011210122 A JP2011210122 A JP 2011210122A JP 2011210122 A JP2011210122 A JP 2011210122A JP 2013071271 A JP2013071271 A JP 2013071271A
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film
decorative
base material
heating wire
resin base
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JP5691970B2 (en
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Tatsuya Sugiura
辰哉 杉浦
Kimihiro Iimura
公浩 飯村
Shojiro Miyamoto
庄二郎 宮本
Sadanori Ando
禎教 安藤
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Toyoda Gosei Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide an excessive film trimming method for a film decorative molding by which an excessive film protruding from the molding is accurately and efficiently trimmed along the end section of the molding, and to provide an apparatus for performing the method.SOLUTION: In the excessive film trimming method for the film decorative molding, a decorative film B is pasted on the surface of a resin base material A which is mounted on a receiving jig 30 by the vacuum pressure molding. Then, an excessive part B2 on the outer periphery of the product section of the decorative film is trimmed by the excessive film trimming method for the film decorative molding. The resin base material A is the molding of which the outer peripheral edge bends downward, and the backside of which has a concave shape. The receiving jig includes: a receiving die section 31 on which the resin base material A is mounted; and an electric heating wire 40 which is laid on the total circumference of the boundary between the receiving die section 31 and a base section 32 which continues from the receiving die section 31 in the vicinity of the boundary. By supplying power to the electric heating wire 40, the pasted decorative film is fused along the lower end section of the outer peripheral edge of the resin base material A.

Description

本発明は、真空圧空成形によって製造されるフィルム加飾成形品の加飾フィルム貼着後の製品部外周の余剰フィルムをトリミングするトリミング方法とその方法を実施するための装置に関する。   The present invention relates to a trimming method for trimming an excess film on the outer periphery of a product part after sticking a decorative film of a decorative film formed by vacuum / pressure forming, and an apparatus for carrying out the method.

フィルム加飾成形品は、例えば、真空圧空成形法により受治具上に載置された成形品（以後、樹脂基材ともいう）の表面から受治具載置台上に亘って加飾フィルムを密着させ、しかる後に貼着された加飾フィルムの製品部外周の余剰部分をトリミングして得られる。このトリミング方法として、特許文献１では、加飾フィルム貼着後、装置内で大まかに余剰フィルムを切除する一次トリミング加工を施し、次に、加飾フィルムが貼着された成形品を受台とともに装置外の刃物台へ移載して、この刃物台上でさらに加飾フィルムの下端をトムソン刃により切除する二次トリミング加工を施す方法を提案している。   For example, the film decorative molded product is a decorative film that extends from the surface of a molded product (hereinafter also referred to as a resin base material) placed on a receiving jig by a vacuum / pressure forming method to the receiving jig mounting table. It is obtained by trimming the surplus part of the outer periphery of the product part of the decorative film that is adhered and then adhered. As a trimming method, in Patent Document 1, after attaching a decorative film, a primary trimming process is performed to roughly cut off an excess film in the apparatus, and then a molded product on which the decorative film is attached together with a cradle. A method of performing a secondary trimming process of transferring to a tool rest outside the apparatus and further cutting off the lower end of the decorative film with a Thomson blade on the tool rest is proposed.

特開２０１０−２２８１４３号公報JP 2010-228143 A

しかしながら、上記の従来技術では余剰フィルムのトリミングに二工程が必要であり作業能率が著しく低下するばかりでなく、コスト高になる。また、端面が三次元形状の樹脂基材ではトムソン刃による二次トリミングは困難であり、更なる改善が望まれていた。   However, the above-described conventional technique requires two steps for trimming the surplus film, which not only significantly reduces the work efficiency but also increases the cost. Moreover, secondary trimming with a Thomson blade is difficult with a resin base material having a three-dimensional end face, and further improvement has been desired.

本発明はこのような事情に鑑みてなされたもので、その目的とするところは、成形品からはみ出している余剰フィルムを成形品の端部に沿って正確にかつ効率よくトリミングするフィルム加飾成形品の余剰フィルムトリミング方法とその方法を実施するための装置を提供することである。   The present invention has been made in view of such circumstances, and its object is to perform film decorative molding that trims an excess film protruding from a molded product accurately and efficiently along the edge of the molded product. An object is to provide a method for trimming excess film and a device for carrying out the method.

上記目的を達成するために、本発明のフィルム加飾成形品の余剰フィルムトリミング方法は、受治具に載置された樹脂基材の表面に真空圧空成形により加飾フィルムを貼着し、この加飾フィルムの製品部外周の余剰部分をトリミングするフィルム加飾成形品の余剰フィルムトリミング方法であって、樹脂基材は、外周縁が下方に向かって屈曲して裏面側が凹面形状の成形品であり、受治具は、この樹脂基材を載置する受型部と受型部に連続する基台部との境界近傍に該境界の全周に亘って敷設された電熱線を備え、この電熱線に通電することで、貼着された加飾フィルムを樹脂基材の外周縁の下端部に沿って溶断することを特徴とする。   In order to achieve the above-described object, the surplus film trimming method of the film decorative molded product of the present invention is a method in which a decorative film is attached to the surface of a resin substrate placed on a receiving jig by vacuum / pressure forming. A surplus film trimming method for a film decorative molded product that trims an excess part on the outer periphery of a product part of a decorative film, wherein the resin base is a molded product whose outer peripheral edge is bent downward and the back side is a concave shape. The receiving jig includes a heating wire laid over the entire circumference of the boundary in the vicinity of the boundary between the receiving part on which the resin base material is placed and the base part continuing to the receiving part. The attached decorative film is fused along the lower end portion of the outer peripheral edge of the resin base material by energizing the heating wire.

本発明のフィルム加飾成形品の余剰フィルムトリミング方法において、電熱線は、前記外周縁下端部から加飾フィルムの厚さの２〜５倍の距離を隔てて敷設されていることが望ましい。また、このとき、電熱線の直径は、加飾フィルムの厚さの２〜５倍とするとよい。   In the surplus film trimming method of the film decorative molded product of the present invention, it is desirable that the heating wire is laid at a distance of 2 to 5 times the thickness of the decorative film from the lower end portion of the outer peripheral edge. At this time, the diameter of the heating wire is preferably 2 to 5 times the thickness of the decorative film.

本発明のフィルム加飾成形品の余剰フィルムトリミング方法において、受治具は、境界部の全周に亘って段差部を有し、この段差部に電熱線が敷設されていてもよい。   In the surplus film trimming method of the film decorative molded product of the present invention, the receiving jig may have a step portion over the entire circumference of the boundary portion, and a heating wire may be laid on the step portion.

本発明のフィルム加飾成形品の余剰フィルムトリミング装置は、受治具に載置された樹脂基材の表面に真空圧空成形により加飾フィルムを貼着し、この加飾フィルムの製品部外周の余剰部分をトリミングするフィルム加飾成形品の余剰フィルムトリミング装置であって、樹脂基材は、外周縁が下方に向かって屈曲して裏面側が凹面形状の成形部材であり、受治具は、樹脂基材を載置する受型部とこの受型部に連続する基台部との境界近傍に境界の全周に亘って敷設された電熱線を備え、この電熱線に通電することで、貼着された加飾フィルムを樹脂基材の外周縁の下端部に沿って溶断するように構成されていることを特徴とする。   The surplus film trimming device for a film decorative molded product according to the present invention has a decorative film attached to the surface of a resin substrate placed on a receiving jig by vacuum / pressure forming, and the outer periphery of the product portion of the decorative film is A surplus film trimming device for film decorative molded products for trimming surplus portions, wherein the resin base is a molded member whose outer peripheral edge is bent downward and the back side is concave, and the receiving jig is a resin A heating wire provided over the entire circumference of the boundary is provided near the boundary between the receiving part on which the substrate is placed and the base part continuous to the receiving part. The attached decorative film is configured to be melted along the lower end portion of the outer peripheral edge of the resin base material.

本発明のフィルム加飾成形品の余剰フィルムトリミング方法によれば、受治具に配設された電熱線に通電するだけで、製品部外周の余剰フィルムを樹脂基材の外周縁の下端部に沿って正確に溶断することができる。そして、真空圧空成形装置からフィルム加飾成形品と溶断された余剰フィルムとを取り出すだけでトリミングは終了する。従って、作業者がカッタで余剰フィルムを切断する従来技術に比べて切断の作業能率が著しく高い。また、工程減によりリードタイムが短縮されるので、大幅にコストを低減することができる。   According to the surplus film trimming method of the film decorative molded product of the present invention, the surplus film on the outer periphery of the product portion is simply applied to the lower end portion of the outer periphery of the resin substrate simply by energizing the heating wire disposed in the receiving jig. Can be fused accurately along. And trimming is complete | finished only by taking out the film decoration molded product and the melted excess film from a vacuum pressure forming apparatus. Therefore, the cutting work efficiency is remarkably high as compared with the conventional technique in which the worker cuts the surplus film with the cutter. In addition, since the lead time is shortened by reducing the number of processes, the cost can be greatly reduced.

また、余剰フィルムを樹脂基材の外周縁の下端部に沿って正確に溶断することができるので、トリミング部の見栄えがよい。   Moreover, since the surplus film can be accurately fused along the lower end portion of the outer peripheral edge of the resin base material, the appearance of the trimming portion is good.

また、真空圧空成形装置内に樹脂基材を載置した複数の受治具を配置すれば、複数のフィルム加飾成形品について同時に余剰フィルムをトリミングすることができる。従って、加工コストをさらに低減することができる。   Further, if a plurality of receiving jigs on which a resin base material is placed is arranged in a vacuum / pressure forming apparatus, an excess film can be trimmed simultaneously for a plurality of film decorative molded products. Therefore, the processing cost can be further reduced.

実施形態の真空圧空成形装置を示す説明図である。It is explanatory drawing which shows the vacuum pressure forming apparatus of embodiment. 実施形態の受治具を示す斜視図である。It is a perspective view which shows the receiving jig of embodiment. 樹脂基材を載置した受治具に加飾フィルムを貼着した状態を示す断面図である。It is sectional drawing which shows the state which stuck the decorating film on the receiving jig which mounted the resin base material. 発熱線を固定する固定手段の一例を示す断面図である。It is sectional drawing which shows an example of the fixing means which fixes a heating wire. 段差部に発熱線を敷設した例を示す部分断面図である。It is a fragmentary sectional view which shows the example which laid the heating wire in the level | step-difference part.

本発明の好適な実施の形態を図１〜図５を参照しながら説明する。図１に本実施形態に係る真空圧空成形装置１０の概要を断面模式図で示す。公知のように、真空圧空成形装置１０は、上端が開口したボックス形状の下部チンバー１１と、下端が開口したボックス形状の上部チャンバー１２とから構成されている。   A preferred embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic cross-sectional view showing an outline of a vacuum / pressure forming apparatus 10 according to this embodiment. As is well known, the vacuum / pneumatic forming apparatus 10 includes a box-shaped lower chin bar 11 having an open upper end and a box-shaped upper chamber 12 having an open lower end.

下部チャンバー１１は固定されており、内部に受治具セット台１３を昇降自在に備えている。受治具セット台１３の昇降手段は、公知のように、下部チャンバー１１の下方に油圧シリンダ１６を配設し、そのピストンロッド１６ａを下部チャンバー１１の下面中央部にシール材を介して気密的に上下摺動自在に挿通し、ピストンロッド１６ａの上端にテーブル１７を固定して、このテーブル１７上の中央部に受治具セット台１３を設置した構造とされている。   The lower chamber 11 is fixed, and is provided with a receiving jig set base 13 so as to be movable up and down. As is well known, the lifting and lowering means of the receiving jig set base 13 is provided with a hydraulic cylinder 16 below the lower chamber 11, and the piston rod 16 a is hermetically sealed via a sealing material at the center of the lower surface of the lower chamber 11. The table 17 is fixed to the upper end of the piston rod 16a, and the receiving jig set base 13 is installed at the center of the table 17.

一方、上部チャンバー１２は上面に連結した油圧シリンダ１５によって上下動が可能であり、その上部内に赤外線ヒータからなる複数個のヒータ１４が配設されている。そして、真空圧空成形装置１０は、これらの上下チャンバー１１、１２の開口端を互いに当接あるいは離間させることにより開閉自在に構成されている。   On the other hand, the upper chamber 12 can be moved up and down by a hydraulic cylinder 15 connected to the upper surface, and a plurality of heaters 14 including infrared heaters are disposed in the upper portion. The vacuum / pneumatic molding apparatus 10 is configured to be openable and closable by bringing the open ends of the upper and lower chambers 11 and 12 into contact with or away from each other.

上下チャンバー１１、１２の外部には真空タンク１８と圧空タンク１９とが設けられている。真空タンク１８は配管２０、２１を介して上下チャンバー１１、１２に連通されている。また、上部チャンバー１２側に連通した配管２０には切替弁２２が設けられており、圧空タンク１９と切替弁２２との間は圧気供給管２３によって連通されている。   A vacuum tank 18 and a pressurized air tank 19 are provided outside the upper and lower chambers 11 and 12. The vacuum tank 18 communicates with the upper and lower chambers 11 and 12 through pipes 20 and 21. In addition, a switching valve 22 is provided in the pipe 20 communicating with the upper chamber 12 side, and the pressurized air tank 19 and the switching valve 22 are communicated with each other by a pressurized air supply pipe 23.

受治具セット台１３には樹脂基材Ａを載置する受治具３０が配設されている。なお本実施形態において、樹脂基材Ａは自動車の内外装部品などのＡＢＳ樹脂やポリカーボネート樹脂などの合成樹脂材よりなる成形品であって、外周縁部Ａ１が下方に向かって屈曲している裏面側が凹面形状とされる立体成形品である。そして、受治具３０には、電熱線４０が敷設されている。   A receiving jig 30 for placing the resin base material A is disposed on the receiving jig set base 13. In this embodiment, the resin base material A is a molded product made of a synthetic resin material such as an ABS resin or a polycarbonate resin such as an interior / exterior part of an automobile, and the outer peripheral edge A1 is bent downward. This is a three-dimensional molded product having a concave shape on the side. A heating wire 40 is laid on the receiving jig 30.

図２に受治具３０の一例を斜視図で示し、図３には、樹脂基材Ａが載置されさらに加飾フィルムＢが貼着された受治具３０の断面図を示す。受治具３０はＰＴＦＥ（テフロン（登録商標））やエポキシ樹脂など耐熱性と絶縁性に優れた樹脂よりなり、樹脂基材Ａの裏面側Ａ２の内周面に密着可能な受型部３１と、この受型部３１に連続するほぼ直方体形状の基台部３２とよりなる。そして、受型部３１と基台部３２との境界３３近傍には電熱線４０が境界３３の全周に亘って敷設されている。境界３３は、受型部３１に樹脂基材Ａを載置した際にその外周縁部Ａ１の下端部Ａ１２に沿う周壁であり、電熱線４０は、境界３３から所定距離ａ隔てて周壁に形成された断面半円形の溝部３４に半ば埋設されるように配置されている。電熱線４０は後述する固定手段４２によって溝部３４に固定されている。   An example of the receiving jig 30 is shown in a perspective view in FIG. 2, and FIG. 3 shows a cross-sectional view of the receiving jig 30 on which the resin base material A is placed and the decorative film B is attached. The receiving jig 30 is made of a resin having excellent heat resistance and insulation, such as PTFE (Teflon (registered trademark)) and epoxy resin, and a receiving portion 31 that can be in close contact with the inner peripheral surface of the back surface A2 of the resin substrate A. The base part 32 having a substantially rectangular parallelepiped shape that is continuous with the receiving part 31. In the vicinity of the boundary 33 between the receiving part 31 and the base part 32, the heating wire 40 is laid over the entire circumference of the boundary 33. The boundary 33 is a peripheral wall along the lower end A12 of the outer peripheral edge A1 when the resin base material A is placed on the receiving part 31, and the heating wire 40 is formed on the peripheral wall at a predetermined distance a from the boundary 33. It is arranged so as to be half buried in the groove 34 having a semicircular cross section. The heating wire 40 is fixed to the groove 34 by fixing means 42 described later.

なお、所定距離ａは加飾フィルムＢの厚さの２〜５倍程度で電熱線４０の直径の２〜５倍程度とするとよい。例えば、加飾フィルムＢの厚さが０．２〜０．５ｍｍの場合には、直径が０．４〜２．５ｍｍの電熱線４０を境界３３から０．５〜１．０ｍｍ程度離間して配置するとよい。電熱線の径と所定距離ａとをこのように設定することで、加飾フィルムＢが樹脂基材Ａの端面Ａ１４に確実に貼着されており、かつ、加飾フィルムＢの端部Ａ１２からのはみ出し部が１．０ｍｍ未満である見栄えのよいフィルム加飾成形品Ｓを得ることができる。なお、電熱線４０としては、周知のニクロム線が好適であるが、ヒーター線やシーズヒータなどを用いてもよい。   The predetermined distance a is preferably about 2 to 5 times the thickness of the decorative film B and about 2 to 5 times the diameter of the heating wire 40. For example, when the thickness of the decorative film B is 0.2 to 0.5 mm, the heating wire 40 having a diameter of 0.4 to 2.5 mm is separated from the boundary 33 by about 0.5 to 1.0 mm. It is good to arrange. By setting the diameter of the heating wire and the predetermined distance a in this way, the decorative film B is reliably adhered to the end surface A14 of the resin base material A, and from the end A12 of the decorative film B It is possible to obtain a good-looking film-decorated molded product S having a protruding portion of less than 1.0 mm. The heating wire 40 is preferably a well-known nichrome wire, but a heater wire or a sheathed heater may be used.

図４は、電熱線４０を溝部３４に固定する固定手段４２を示す拡大断面図である。本実施形態では固定手段４２は溝部３４に適宜の間隔で穿設された基台部３２の側壁３２ａを貫通する固定孔３５と、電熱線４０を保持する線材４４と、側壁３２ａの裏面側において線材４４を係止する棒状の絶縁体４６よりなる。ここで、電熱線４０を固定手段４２によって側壁３２ａに固定するには、まず線材４４を中央部で折り曲げ、折り曲げ部に電熱線４０を挟んで保持する。次に、線材４４の両端を固定孔３５に挿通して側壁３２ａの裏面で絶縁体４６に巻き付ける。その後、線材４４の両端を撚り合わせて結び目（または溶接部）４８を形成する。このようにして電熱線４０を側壁３２ａに牽引固定することができる。なお、線材４４は高温でも変質しないステンレスや電熱線４０と同材質のものとするとよく、その線径は電熱線４０よりも細いものが望ましい。また、絶縁体４６としては受治具３０と同材質のＰＴＦＥやエポキシ樹脂あるいはセラミックなど用いることができる。   FIG. 4 is an enlarged cross-sectional view showing a fixing means 42 for fixing the heating wire 40 to the groove 34. In the present embodiment, the fixing means 42 is provided on the rear surface side of the side wall 32a, the fixing hole 35 penetrating the side wall 32a of the base portion 32 formed at appropriate intervals in the groove 34, the wire 44 holding the heating wire 40, and the like. It consists of a rod-like insulator 46 that locks the wire 44. Here, in order to fix the heating wire 40 to the side wall 32a by the fixing means 42, first, the wire 44 is bent at the central portion, and the heating wire 40 is held between the bent portions. Next, both ends of the wire 44 are inserted into the fixing hole 35 and wound around the insulator 46 on the back surface of the side wall 32a. Thereafter, both ends of the wire 44 are twisted to form a knot (or weld) 48. In this manner, the heating wire 40 can be pulled and fixed to the side wall 32a. The wire 44 is preferably made of the same material as the stainless steel or the heating wire 40 that does not change even at high temperatures, and the wire diameter is preferably narrower than that of the heating wire 40. The insulator 46 can be made of the same material as the receiving jig 30, such as PTFE, epoxy resin, or ceramic.

また、図５に示すように、受型部３１と側壁部３２との境界部３３の全周に段差部３６を形成して、この段差部３６に電熱線４０を配置するようにしてもよい。   Further, as shown in FIG. 5, a stepped portion 36 may be formed on the entire circumference of the boundary portion 33 between the receiving mold portion 31 and the side wall portion 32, and the heating wire 40 may be disposed on the stepped portion 36. .

図５は、図３における円Ｃで囲んだ部分であって、段差部３６を設けた場合を拡大して模式的に示した部分断面図である。段差部３６の段差面３６ａは樹脂基材Ａの端面Ａ１４に連続するように端面Ａ１４と面一に形成されている。ここで、電熱線４０は、段差部外周３６ｂから所定距離ａ隔てて段差面３６ａに形成された溝部３４に半ば埋設されるようにして敷設されている。   FIG. 5 is a partial cross-sectional view schematically showing an enlarged view of a portion surrounded by a circle C in FIG. The step surface 36a of the step portion 36 is formed flush with the end surface A14 so as to be continuous with the end surface A14 of the resin base material A. Here, the heating wire 40 is laid so as to be partially embedded in the groove portion 34 formed on the step surface 36a at a predetermined distance a from the step portion outer periphery 36b.

このように段差部３６を設けてその段差面３６ａに電熱線４０を敷設することで、貼着後の加飾フィルムＢの端部Ｂ１が加飾成形品Ｓの端面Ａ１４において加飾成形品Ｓの内周側を指向した状態で溶断することができるので、さらに見栄えのよいフィルム加飾成形品Ｓを得ることができる。   Thus, by providing the level | step-difference part 36 and laying the heating wire 40 in the level | step difference surface 36a, the edge part B1 of the decoration film B after sticking is the decoration molded product S in the end surface A14 of the decoration molded product S. Therefore, it is possible to obtain a film-decorated molded product S having a better appearance.

次に、上記のように構成した真空圧空成形装置１０によって樹脂基材２０の表面に加飾フィルムＢを貼着した後、貼着された加飾フィルムＢの製品部外周の余剰部分をトリミングするトリミング方法について説明する。なお、この樹脂基材Ａの表面に貼着する加飾フィルムＢとしては、例えば、アクリル系又はウレタン系のフィルムに適宜な印刷や塗装あるいは金属蒸着を施して使用される。なお、加飾フィルムＢの裏面には樹脂基材に接着する接着剤が塗布されている。   Next, after the decorative film B is attached to the surface of the resin base material 20 by the vacuum / pressure forming apparatus 10 configured as described above, an excess portion on the outer periphery of the product portion of the attached decorative film B is trimmed. A trimming method will be described. In addition, as the decorative film B stuck on the surface of this resin base material A, for example, an acrylic film or urethane film is used after appropriate printing, painting, or metal vapor deposition. Note that an adhesive that adheres to the resin base material is applied to the back surface of the decorative film B.

まず、上記真空圧空成形装置１０によって成形品Ａの表面に加飾フィルムＢを貼着する方法を簡単に説明する。図１に示すように、上部チャンバー１２を上動させて下部チャンバー１１の上端開口部を開放させると共に受治具セット台１３を下部チャンバー１１の上端開口部にまで上昇させ、受治具セット台１３に受治具３０を配設し、受治具３０の受型部３１に樹脂基材Ａを載置する。   First, a method of sticking the decorative film B on the surface of the molded product A by the vacuum / pressure forming apparatus 10 will be briefly described. As shown in FIG. 1, the upper chamber 12 is moved upward to open the upper end opening of the lower chamber 11, and the receiving jig set base 13 is raised to the upper end opening of the lower chamber 11. 13 is provided with a receiving jig 30, and the resin base material A is placed on the receiving part 31 of the receiving jig 30.

次に、受治具セット台１３を固定させているテーブル１７を下動させて樹脂基材Ａと受治具３０を下部チャンバー１１内に収容した状態にすると共に、下部チャンバー１１の開口端に加飾フィルムＢを張設してその周縁端を下部チャンバー１１の口縁に設けられているクランプ２４によって挟持、固定する。   Next, the table 17 to which the receiving jig set base 13 is fixed is moved downward so that the resin base material A and the receiving jig 30 are accommodated in the lower chamber 11, and at the open end of the lower chamber 11. The decorative film B is stretched and the peripheral edge thereof is sandwiched and fixed by a clamp 24 provided at the lip of the lower chamber 11.

次いで、上部チャンバー１２を下動させて上下チャンバー１１、１２の開口端を当接させることにより上下チャンバー１１、１２を密閉する。そして、真空タンク１８により配管２０、２１を通じて上下チャンバー１１、１２内を真空とする。続いて、ヒータ１４を発熱させて上下チャンバー１１、１２間を仕切った状態で張設されている加飾フィルムＢを加熱して軟化させる。   Next, the upper and lower chambers 11 and 12 are sealed by moving the upper chamber 12 downward and bringing the open ends of the upper and lower chambers 11 and 12 into contact with each other. Then, the inside of the upper and lower chambers 11 and 12 is evacuated through the pipes 20 and 21 by the vacuum tank 18. Subsequently, the decorative film B stretched in a state where the heater 14 is heated to partition the upper and lower chambers 11 and 12 is heated and softened.

しかるのちに、油圧シリンダ１６を作動させて受治具セット台１３を上昇させることにより、このセット台１３上の受治具３０に載置されている樹脂基材Ａの上面を加飾フィルムＢの下面中央部に押し付けて加飾フィルムＢを樹脂基材Ａの上面Ａ３に密着させる。   Then, the upper surface of the resin base material A placed on the receiving jig 30 on the setting table 13 is decorated with the decorative film B by operating the hydraulic cylinder 16 to raise the receiving jig setting table 13. The decorative film B is brought into close contact with the upper surface A3 of the resin base material A by pressing against the center of the lower surface of the resin substrate A.

この状態にして切替弁２２を切り替えて上部チャンバー１２側の配管２０を圧気供給管２３側に連通させることにより、圧空タンク１９から空気を上部チャンバー１２内に流入させる。すると加飾フィルムＢの下方側は真空状態を保持しているので、加飾フィルムＢは、空気圧によって図３および図５に示すように、樹脂基材Ａの外周縁部Ａ１の表面から下端面Ａ１４、さらに下端面Ａ１４に隣接する受治具３０の境界部３３（又は段差部３６）および、基台部３２の外周面に密着した状態となる。   In this state, the switching valve 22 is switched to connect the pipe 20 on the upper chamber 12 side to the pressurized air supply pipe 23 side, so that air flows from the pressurized air tank 19 into the upper chamber 12. Then, since the lower side of the decorative film B maintains a vacuum state, the decorative film B is lower than the lower end surface from the surface of the outer peripheral edge A1 of the resin base A by air pressure as shown in FIGS. A14 is in close contact with the boundary portion 33 (or stepped portion 36) of the receiving jig 30 adjacent to the lower end surface A14 and the outer peripheral surface of the base portion 32.

このように加飾フィルムＢを樹脂基材Ａから受治具３０の下端に亘って被着させたのち、上下チャンバー１１、１２内を大気に開放させ、しかるのちに、上部チャンバー１２を上動させて上下チャンバー１１、１２間を開放させる。   After the decorative film B is applied from the resin base A to the lower end of the receiving jig 30 as described above, the upper and lower chambers 11 and 12 are opened to the atmosphere, and then the upper chamber 12 is moved up. The upper and lower chambers 11 and 12 are opened.

この状態にして受治具３０に敷設した電熱線４０に通電する。貼着後の加飾フィルムＢには引張応力が残留しているので、電熱線４０に通電して加熱することにより、加飾フィルムＢを電熱線４０が敷設されている樹脂基材Ａの下端部近傍で全周に亘って正確に且つ容易に溶断することができる。このようにして加飾フィルムＢを溶断した後、真空圧空成形装置１０からフィルム加飾成形品Ｓと余剰フィルムＢ２（図３）とを取り出して１サイクルの成形加工を終了する。こうして得られたフィルム加飾成形品Ｓは、樹脂基材Ａの表面（上面）Ａ３から外周縁部Ａ１の下端面Ａ１４にわたって加飾フィルムＢがきれいに貼着されてなり、かつ、下端面Ａ１４からはみ出す余剰フィルムの長さを１ｍｍ未満に抑制することができるので見栄えのよい外観を呈することができる。特に、段差部３６に電熱線４０を埋設した場合には、下端面Ａ１４からはみ出す余剰フィルムＢ１（図５）の先端がフィルム加飾成形品Ｓの内周側を指向した状態となるので、さらに見栄えのよいフィルム加飾成形品Ｓを得ることができる。   In this state, the heating wire 40 laid on the receiving jig 30 is energized. Since the tensile stress remains in the decorative film B after sticking, the lower end of the resin substrate A on which the heating wire 40 is laid is applied to the heating wire 40 to heat it. It can be melted accurately and easily over the entire circumference in the vicinity of the portion. After fusing the decorative film B in this manner, the film decorative molded product S and the surplus film B2 (FIG. 3) are taken out from the vacuum / pressure forming apparatus 10 to complete one cycle of the molding process. The film decorative molded product S obtained in this way has the decorative film B adhered cleanly from the surface (upper surface) A3 of the resin substrate A to the lower end surface A14 of the outer peripheral edge A1, and from the lower end surface A14. Since the length of the excess film that protrudes can be suppressed to less than 1 mm, a good-looking appearance can be exhibited. In particular, when the heating wire 40 is embedded in the stepped portion 36, the tip of the surplus film B1 (FIG. 5) protruding from the lower end surface A14 is directed to the inner peripheral side of the film decorative molded product S. A good-looking film-decorated molded product S can be obtained.

また、真空圧空成形装置内に樹脂基材を載置した複数の受治具を配置すれば、複数のフィルム加飾成形品について同時に余剰フィルムをトリミングすることができる。   Further, if a plurality of receiving jigs on which a resin base material is placed is arranged in a vacuum / pressure forming apparatus, an excess film can be trimmed simultaneously for a plurality of film decorative molded products.

本発明のフィルム加飾成形品の余剰フィルムトリミング方法は、車両の内装部材としてのフィルム加飾成形品に好適に用いることができる。   The surplus film trimming method for a film decorative molded product of the present invention can be suitably used for a film decorative molded product as an interior member of a vehicle.

Ａ：樹脂基材 Ａ１：外周縁 Ａ１４：下端部 Ａ３：（基材）表面 Ｂ：加飾フィルム ３０：受治具 ３１：受型部 ３２：基台部 ３３：境界 ３４：溝部 ３５：固定孔 ３６：段差部 ３６ａ：段差面 ４０：電熱線 ４２：固定手段   A: Resin base material A1: Outer peripheral edge A14: Lower end A3: (Base material) surface B: Decorating film 30: Receiving jig 31: Receiving part 32: Base part 33: Boundary 34: Groove part 35: Fixed hole 36: Stepped portion 36a: Stepped surface 40: Heating wire 42: Fixing means

Claims (5)

受治具に載置された樹脂基材の表面に真空圧空成形により加飾フィルムを貼着し、該加飾フィルムの製品部外周の余剰部分をトリミングするフィルム加飾成形品の余剰フィルムトリミング方法であって、
前記樹脂基材は、外周縁が下方に向かって屈曲して裏面側が凹面形状の成形品であり、
前記受治具は、該樹脂基材を載置する受型部と該受型部に連続する基台部との境界近傍に該境界の全周に亘って敷設された電熱線を備え、
該電熱線に通電することで、貼着された前記加飾フィルムを前記樹脂基材の前記外周縁の下端部に沿って溶断することを特徴とするフィルム加飾成形品の余剰フィルムトリミング方法。 Method for surplus film trimming of a film decorative molded product, in which a decorative film is attached to the surface of a resin base material placed on a receiving jig by vacuum / pressure forming, and an excess portion of the outer periphery of the product portion of the decorative film is trimmed Because
The resin base material is a molded product whose outer peripheral edge is bent downward and the back surface side is concave,
The receiving jig includes a heating wire laid over the entire periphery of the boundary in the vicinity of the boundary between the receiving part on which the resin base material is placed and the base part continuing to the receiving part,
The surplus film trimming method of the film decoration molded product characterized by melt | disconnecting the stuck said decorative film along the lower end part of the said outer periphery of the said resin base material by supplying with electricity to this heating wire. 前記電熱線は、前記外周縁下端部から前記加飾フィルムの厚さの２〜５倍の距離を隔てて敷設されている請求項１に記載のフィルム加飾成形品の余剰フィルムトリミング方法。   The surplus film trimming method of the film decorative molded product according to claim 1, wherein the heating wire is laid at a distance of 2 to 5 times the thickness of the decorative film from the lower end portion of the outer peripheral edge. 前記電熱線の直径は、前記加飾フィルムの厚さの２〜５倍である請求項２に記載のフィルム加飾成形品の余剰フィルムトリミング方法。   The method for surplus film trimming of a film decorative molded product according to claim 2, wherein the diameter of the heating wire is 2 to 5 times the thickness of the decorative film. 前記受治具は、前記境界部の全周に亘って段差部を有し、前記電熱線は、該段差部に敷設されている請求項１〜３のいずれか一項に記載のフィルム加飾成形品の余剰フィルムトリミング方法。   The film decoration according to any one of claims 1 to 3, wherein the receiving jig has a step portion over the entire circumference of the boundary portion, and the heating wire is laid on the step portion. Excess film trimming method for molded products. 受治具に載置された樹脂基材の表面に真空圧空成形により加飾フィルムを貼着し、該加飾フィルムの製品部外周の余剰部分をトリミングするフィルム加飾成形品の余剰フィルムトリミング装置であって、
前記樹脂基材は、外周縁が下方に向かって屈曲して裏面側が凹面形状の成形部材であり、
前記受治具は、該樹脂基材を載置する受型部と該受型部に連続する基台部との境界近傍に該境界の全周に亘って敷設された電熱線を備え、
該電熱線に通電することで、貼着された前記加飾フィルムを前記樹脂基材の前記外周縁の下端部に沿って溶断することを特徴とするフィルム加飾成形品の余剰フィルムトリミング装置。 A surplus film trimming device for a film-decorated molded product for adhering a decorative film to the surface of a resin substrate placed on a receiving jig by vacuum / pressure forming and trimming an excess portion of the outer periphery of the product portion of the decorative film Because
The resin base material is a molded member whose outer peripheral edge is bent downward and the back surface side is concave,
The receiving jig includes a heating wire laid over the entire periphery of the boundary in the vicinity of the boundary between the receiving part on which the resin base material is placed and the base part continuing to the receiving part,
The surplus film trimming device for a film decorative molded product, wherein the attached decorative film is fused along the lower end portion of the outer peripheral edge of the resin base material by energizing the heating wire.
JP2011210122A 2011-09-27 2011-09-27 Method and apparatus for trimming surplus film of decorative film molded product Expired - Fee Related JP5691970B2 (en)

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