JP3102916B2 - Vacuum press lamination molding method and apparatus - Google Patents
Vacuum press lamination molding method and apparatusInfo
- Publication number
- JP3102916B2 JP3102916B2 JP03194468A JP19446891A JP3102916B2 JP 3102916 B2 JP3102916 B2 JP 3102916B2 JP 03194468 A JP03194468 A JP 03194468A JP 19446891 A JP19446891 A JP 19446891A JP 3102916 B2 JP3102916 B2 JP 3102916B2
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- rubber
- elastic film
- synthetic resin
- resin sheet
- 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.)
- Expired - Lifetime
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、真空プレス積層成形方
法及び装置に関し、特に模様等を印刷された合成樹脂製
化粧シートの如き合成樹脂シートを積層基材の外表面に
密着積層する真空プレス積層成形方法及び装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum press laminating method and apparatus, and more particularly to a vacuum press for tightly laminating a synthetic resin sheet such as a synthetic resin decorative sheet on which a pattern or the like is printed on the outer surface of a laminated substrate. The present invention relates to a lamination molding method and apparatus.
【０００２】[0002]
【従来の技術】ラミネート、ホットスタンプ式の転写等
のために、模様等を印刷された熱可遡性の合成樹脂製の
化粧シートを積層基材の外表面に密着積層する真空プレ
ス積層成形方法として、下面開口をゴム状弾性膜により
塞がれた上部チャンバ部材と、内部に基材を配置され、
前記上部チャンバ部材と選択的に接合されて前記上部チ
ャンバとは前記ゴム状弾性膜により隔てられた下部チャ
ンバを構成し、この下部チャンバ内に基材及び積層用の
合成樹脂製の化粧シートを配置される下部チャンバとを
用い、上部チャンバを加圧すると共に下部チャンバを減
圧し、その差圧によりゴム状弾性膜が下部チャンバ内の
基材の外表面に密着しようとすることを利用して前記化
粧シートを下部チャンバ内の基材の外表面に密着させる
真空プレス積層成形方法が既に提案されており、これは
例えば、特公昭６０−５８０１４号公報に示されてい
る。2. Description of the Related Art A vacuum press laminating method for closely laminating a decorative sheet made of a heat-returnable synthetic resin on which a pattern or the like is printed on the outer surface of a laminated substrate for laminating, hot stamping transfer and the like. As an upper chamber member whose lower surface opening is closed by a rubber-like elastic film, a base material is disposed inside,
The upper chamber member is selectively joined to form a lower chamber separated from the upper chamber by the rubber-like elastic film, and a base material and a decorative resin sheet for lamination are arranged in the lower chamber. The upper chamber is pressurized and the lower chamber is depressurized using the lower chamber, and the rubber-like elastic film tries to adhere to the outer surface of the base material in the lower chamber by the pressure difference. A vacuum press laminating method in which a sheet is brought into close contact with the outer surface of a substrate in a lower chamber has already been proposed, which is disclosed in, for example, Japanese Patent Publication No. 60-58014.
【０００３】[0003]
【発明が解決しようとする課題】上述の如き真空プレス
積層成形方法に於いては、基材と化粧シートとの間に空
気が残存した状態にて、化粧シートが基材に接合し、こ
のため基材と化粧シートとの間に空気の噛み込みが生じ
ることがある。この噛み込み空気の排除のために、基材
は木材等の通気性基材であることを要求される。In the vacuum press lamination molding method as described above, the decorative sheet is bonded to the substrate while air remains between the substrate and the decorative sheet. Entrapment of air may occur between the base material and the decorative sheet. In order to eliminate this biting air, the substrate is required to be a gas permeable substrate such as wood.
【０００４】これは基材の素材を多く限定することにな
り、また基材と化粧シートとの間に噛み込み空気の排除
が充分に行われないと、基材と化粧シートとの間に気泡
があることになり、これは、皺の発生、化粧シートによ
る印刷模様の乱れに留まらず、致命的な欠陥となる。本
発明は、従来の真空プレス積層成形方法に於ける上述の
如き問題点に着目してなされたものであり、基材と化粧
シートとの間に空気が噛み込むことを回避し、通気性を
備えていない基材に対する積層成形も可能し、良質な積
層成形品を生産することができる真空プレス積層成形方
法及びこの方法の実施に使用される真空プレス積層成形
装置を提供することを目的としている。[0004] This limits the material of the base material to a large extent, and if the air between the base material and the decorative sheet is not sufficiently removed, air bubbles are generated between the base material and the decorative sheet. This is not only limited to the occurrence of wrinkles and disturbance of the printed pattern due to the decorative sheet, but also a fatal defect. The present invention has been made in view of the above-mentioned problems in the conventional vacuum press lamination molding method, and avoids air from being caught between the base material and the decorative sheet, thereby improving air permeability. It is an object of the present invention to provide a vacuum press laminating method and a vacuum press laminating apparatus used for carrying out this method, which can also perform lamination molding on a substrate not provided and can produce a high quality laminated molded product. .
【０００５】[0005]
【課題を解決するための手段】上述の如き目的は、本発
明によれば、ゴム状弾性膜により区分された第一のチャ
ンバと第二のチャンバとを設け、その第二のチャンバに
基材と積層用の合成樹脂シートとを配置して該合成樹脂
シートにより前記第二のチャンバをゴム状弾性膜側の第
三のチャンバと前記基材を含む第四のチャンバとに区分
し、前記第一のチャンバと前記第三のチャンバとを減圧
して前記合成樹脂シートを前記基材より引き離してゴム
状弾性膜側に引き付け、次に前記第四のチャンバを減圧
して該第四のチャンバの空気を排除し、次に前記第一の
チャンバを加圧して前記ゴム状弾性膜により前記合成樹
脂シートを前記基材の外表面に密着積層することを特徴
とする真空プレス積層成形方法によって達成される。According to the present invention, a first chamber and a second chamber separated by a rubber-like elastic film are provided, and a substrate is provided in the second chamber. And a synthetic resin sheet for lamination, dividing the second chamber into a third chamber on the rubber-like elastic film side and a fourth chamber including the base material by the synthetic resin sheet, One chamber and the third chamber are depressurized, the synthetic resin sheet is separated from the base material and attracted to the rubber-like elastic film side, and then the fourth chamber is depressurized to reduce the pressure of the fourth chamber. This is achieved by a vacuum press laminating method characterized in that the air is eliminated, and then the first chamber is pressurized and the synthetic resin sheet is tightly laminated on the outer surface of the substrate by the rubbery elastic film. You.
【０００６】また上述の如き本発明による真空プレス積
層成形方法に於いては、前記第一のチャンバと前記第三
のチャンバとを減圧して前記合成樹脂シートを前記基材
より引き離してゴム状弾性膜側に引き付ける時に前記合
成樹脂シートを前記ゴム状弾性膜に接触させて加熱状態
の前記ゴム状弾性膜により前記合成樹脂シートを加熱し
軟化させることを特徴としていてよい。In the vacuum press lamination molding method according to the present invention as described above, the first chamber and the third chamber are depressurized to separate the synthetic resin sheet from the base material, thereby causing a rubber-like elasticity. When the synthetic resin sheet is attracted to the film side, the synthetic resin sheet is brought into contact with the rubber-like elastic film, and the synthetic resin sheet is heated and softened by the heated rubber-like elastic film.
【０００７】また上述の如き目的を達成するため、本発
明による真空プレス積層成形装置は、下方開口の上部チ
ャンバ部材と、前記上部チャンバ部材に前記下方開口を
塞ぐよう装着され上部チャンバ部材の内側に上部チャン
バを構成するゴム状弾性膜と、基材を配置され前記上部
チャンバ部材と選択的に接合されて前記上部チャンバ部
材との接合部に積層用の合成樹脂シートを配置され前記
合成樹脂シートと前記ゴム状弾性膜との間に中間チャン
バを構成しその反対側に下部チャンバを構成する下部チ
ャンバ部材と、前記上部チャンバと前記中間チャンバと
前記下部チャンバの各々に選択的に負圧を供給する負圧
供給手段と、前記上部チャンバに選択的に加圧空気を供
給する加圧空気供給手段とを有していることを特徴とし
ている。In order to achieve the above object, a vacuum press laminating and forming apparatus according to the present invention comprises an upper chamber member having a lower opening, and an upper chamber member mounted on the upper chamber member so as to cover the lower opening. A rubber-like elastic film constituting an upper chamber, a base material disposed thereon, and a synthetic resin sheet for lamination disposed at a joint portion with the upper chamber member selectively joined to the upper chamber member; A lower chamber member forming an intermediate chamber between the rubber-like elastic film and a lower chamber on the opposite side, and selectively supplying a negative pressure to each of the upper chamber, the intermediate chamber, and the lower chamber; It is characterized by having negative pressure supply means and pressurized air supply means for selectively supplying pressurized air to the upper chamber.
【０００８】また本発明による真空プレス積層成形装置
に於いては、前記上部チャンバ部材は前記ゴム状弾性膜
の前記上部チャンバ側への移動を制限する通気性構造の
ストッパ部材を有し、前記ストッパ部材は加熱要素を含
んでいてよい。Further, in the vacuum press laminating apparatus according to the present invention, the upper chamber member has a stopper member having a gas permeable structure for restricting movement of the rubber-like elastic film toward the upper chamber, and The member may include a heating element.
【０００９】[0009]
【作 用】上述の如き構成によれば、第三のチャンバ、
換言すれば中間チャンバを減圧して合成樹脂シートを基
材より引き離した状態にて第四のチャンバ（下部チャン
バ）を減圧するから、基材と合成樹脂シートとの間の空
気が合成樹脂シートにより阻害されることなく充分に排
除され、この後に第一のチャンバ（上部チャンバ）が加
圧されることにより、第一のチャンバと第四のチャンバ
との差圧をもって合成樹脂シートが真空状態にて基材に
密着するようになる。[Operation] According to the above configuration, the third chamber,
In other words, since the pressure in the intermediate chamber is reduced and the pressure in the fourth chamber (lower chamber) is reduced in a state where the synthetic resin sheet is separated from the base material, the air between the base material and the synthetic resin sheet is reduced by the synthetic resin sheet. After being sufficiently removed without being hindered, and then the first chamber (upper chamber) is pressurized, the synthetic resin sheet is vacuumed due to the pressure difference between the first chamber and the fourth chamber. It comes into close contact with the substrate.
【００１０】また第三のチャンバを減圧して合成樹脂シ
ートを基材より引き離した時には、この合成樹脂シート
はゴム状弾性膜に接触し、加熱されたゴム状弾性膜より
伝導により加熱され、軟化する。When the third chamber is depressurized and the synthetic resin sheet is separated from the base material, the synthetic resin sheet comes into contact with the rubber-like elastic film, and is heated by conduction from the heated rubber-like elastic film to soften. I do.
【００１１】[0011]
【実施例】以下に添付の図を参照して本発明を実施例に
ついて詳細に説明する。図１は本発明による真空プレス
積層成形装置の一実施例を示している。真空プレス積層
成形装置は、流体圧シリンダ装置１により上下方向に駆
動される上部チャンバ部材３と固定の下部チャンバ部材
５とを有している。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an embodiment of the present invention. FIG. 1 shows an embodiment of a vacuum press lamination molding apparatus according to the present invention. The vacuum press laminating and forming apparatus has an upper chamber member 3 driven vertically by a fluid pressure cylinder device 1 and a fixed lower chamber member 5.
【００１２】上部チャンバ部材３は下方開口の箱状をな
し、これの下方開口部には下面開口を塞ぐよう耐熱性の
ゴム状弾性膜７が装着されている。これにより上部チャ
ンバ部材３の内側に密閉構造の上部チャンバ９が画定さ
れる。上部チャンバ部材３の天井面部にはヒータ１１が
取り付けられており、また上部チャンバ部材３には、ゴ
ム状弾性膜７が上部チャンバ３内へ移動をすることを制
限する通気性構造、この場合、多孔構造のストッパプレ
ート１３が固定されている。ストッパプレート１３は、
電気的な加熱構造を含んでおり、熱盤として作用するよ
うになっている。The upper chamber member 3 has a box shape with a lower opening, and a heat resistant rubber-like elastic film 7 is attached to the lower opening so as to close the lower surface opening. Thereby, the upper chamber 9 having a closed structure is defined inside the upper chamber member 3. A heater 11 is attached to the ceiling surface of the upper chamber member 3, and the upper chamber member 3 has a gas-permeable structure that restricts the rubber-like elastic film 7 from moving into the upper chamber 3, in this case, A stopper plate 13 having a porous structure is fixed. The stopper plate 13
It includes an electrical heating structure and acts as a hotplate.
【００１３】また上部チャンバ部材３の下端部にはゴム
状弾性膜７の取付位置より下方へ突出したディスタンス
フレーム１５が装着されている。下部チャンバ部材５は
上方開口の箱状をなし、これの上方開口部には多孔構造
の基材載置プレート１７が取り付けられている。基材載
置プレート１７の中央部には基材載置台１９が取り付け
られており、基材載置台１９に基材Ｗが載置されるよう
になっている。基材載置プレート１７の周縁部にはバン
クフレーム２１が取り付けられており、バンクフレーム
２１は、積層用の合成樹脂製の化粧シートＳの周縁部を
載置され、上部チャンバ部材３のディスタンスフレーム
１５と接合するようになっている。A lower end of the upper chamber member 3 is provided with a distance frame 15 projecting downward from a position where the rubber-like elastic film 7 is mounted. The lower chamber member 5 has a box shape with an upper opening, and a base material mounting plate 17 having a porous structure is attached to the upper opening. A substrate mounting table 19 is attached to the center of the substrate mounting plate 17, and the substrate W is mounted on the substrate mounting table 19. A bank frame 21 is attached to a peripheral portion of the base material placing plate 17. The bank frame 21 is mounted with a peripheral portion of a decorative sheet S made of synthetic resin for lamination, and a distance frame of the upper chamber member 3. 15.
【００１４】これにより上部チャンバ部材３はディスタ
ンスフレーム１５をもって下部チャンバ部材５のバンク
フレーム２１と接合し、この接合により、図２に示され
ている如く、ゴム状弾性膜７と化粧シートＳとの間に密
閉構造の中間チャンバ２３が、化粧シートＳより図にて
下方に基材載置台１９上の基材Ｗを内蔵する密閉構造の
下部チャンバ２５が各々画定されるようになる。As a result, the upper chamber member 3 is joined to the bank frame 21 of the lower chamber member 5 with the distance frame 15, and by this joining, the rubber-like elastic film 7 and the decorative sheet S are connected as shown in FIG. The intermediate chamber 23 having a closed structure therebetween is defined below the decorative sheet S, and the lower chamber 25 having a closed structure incorporating the base material W on the base table 19 is defined below the decorative sheet S in the figure.
【００１５】上部チャンバ部材３には上部チャンバ９に
対する空気の給排を行う上部ポート２７が、ディスタン
スフレーム１５には中間チャンバ２３に対する空気の給
排を行う中間ポート２９が、下部チャンバ部材５には下
部チャンバ２５に対する空気の給排を行う下部ポート３
１が各々設けられている。上部ポート２７と中間ポート
２９と下部ポート３１の各々にはこの各ポートをドレン
ポート３３ｄ、３５ｄ、３７ｄと空気圧供給ポート３３
ｓ、３５ｓ、３７ｓの何れかに選択的に接続する切換弁
３３、３５、３７が接続されている。切換弁３３の空気
圧供給ポート３３ｓには更にもう一つの切換弁３９が接
続されており、切換弁３９は空気圧供給ポート３３ｓを
空気加圧ポンプ４１と真空ポンプ４３の何れか一方に選
択的に接続するようになっている。切換弁３５、３７の
空気圧供給ポート３５ｓ、３７ｓは各々真空ポンプ４３
に直接的に接続されている。The upper chamber member 3 has an upper port 27 for supplying and discharging air to and from the upper chamber 9, the distance frame 15 has an intermediate port 29 for supplying and discharging air to the intermediate chamber 23, and the lower chamber member 5 has an intermediate port 29. Lower port 3 for supplying and discharging air to lower chamber 25
1 are provided. Each of the upper port 27, the intermediate port 29, and the lower port 31 has a drain port 33d, 35d, 37d and an air pressure supply port 33.
The switching valves 33, 35, and 37 that are selectively connected to any one of s, 35s, and 37s are connected. Another switching valve 39 is connected to the air pressure supply port 33s of the switching valve 33, and the switching valve 39 selectively connects the air pressure supply port 33s to one of the air pressurizing pump 41 and the vacuum pump 43. It is supposed to. The air pressure supply ports 35 s and 37 s of the switching valves 35 and 37 are respectively provided with vacuum pumps 43.
Is directly connected to
【００１６】次に上述の如き構成よりなる真空プレス積
層成形装置を用いて本発明による真空プレス積層成形方
法を実施する手順について、図１乃至図４を参照して説
明する。先ず、図１に示されている如く、基材Ｗと化粧
シートＳのセッティングを完了した時点で、切換弁３３
を切り換えて上部ポート２７を空気圧供給ポート３３ｓ
に接続すると共に切換弁３９を切り換えて空気圧供給ポ
ート３３ｓを真空ポンプ４３に接続する。これにより上
部チャンバ９が減圧され、ゴム状弾性膜７がストッパプ
レート１３に吸着され、これに密着する。この時には、
既にヒータ１１とストッパプレート１３が発熱してお
り、これらによりゴム状弾性膜７が加熱される。この加
熱は７０〜８０℃程度に行われればよい。Next, a procedure for carrying out the vacuum press lamination molding method according to the present invention using the vacuum press lamination molding apparatus having the above-described configuration will be described with reference to FIGS. First, as shown in FIG. 1, when the setting of the base material W and the decorative sheet S is completed, the switching valve 33 is set.
To switch the upper port 27 to the air pressure supply port 33s.
And the switching valve 39 is switched to connect the air pressure supply port 33 s to the vacuum pump 43. As a result, the pressure in the upper chamber 9 is reduced, and the rubber-like elastic film 7 is adsorbed on the stopper plate 13 and adheres to the stopper plate 13. At this time,
The heater 11 and the stopper plate 13 have already generated heat, and the rubber-like elastic film 7 is heated by these. This heating may be performed at about 70 to 80 ° C.
【００１７】化粧シートＳは着色ＰＶＣシートと透明Ｐ
ＶＣシートとの間に絵柄層を有する厚さ０．２ｍｍ程度
のＰＶＣラミネートシートであってよく、これの基材Ｗ
との接合面にはウレタン系ホットメルト接着剤が１００
ｇ／ｍ2程度の塗布量をもって塗布されている。また基
材Ｗは、例えばアルミニウム合金製のドアー形状品であ
ってよい。The decorative sheet S is made of a colored PVC sheet and transparent P
It may be a PVC laminated sheet having a picture layer between the VC sheet and the thickness of about 0.2 mm.
Urethane hot melt adhesive is 100
It is applied with a coating amount of about g / m 2 . The substrate W may be, for example, a door-shaped product made of an aluminum alloy.
【００１８】次に流体圧シリンダ装置１により上部チャ
ンバ部材３を降下させ、図２に示されている如く、これ
のディスタンスフレーム１５を下部チャンバ部材５のバ
ンクフレーム２１に接合させ、所謂、型締めを行う。こ
れによりゴム状弾性膜７と化粧シートＳとの間に密閉構
造の中間チャンバ２３が、化粧シートＳより図にて下方
に基材載置台１９上の基材Ｗを内蔵する密閉構造の下部
チャンバ２５が各々画定される。Next, the upper chamber member 3 is lowered by the fluid pressure cylinder device 1, and the distance frame 15 is joined to the bank frame 21 of the lower chamber member 5 as shown in FIG. I do. Thus, the intermediate chamber 23 having a closed structure between the rubber-like elastic film 7 and the decorative sheet S is a lower chamber having a closed structure in which the base material W on the base table 19 is built below the decorative sheet S in the figure. 25 are each defined.
【００１９】この状態にて切換弁３５を切り換えて中間
ポート２９を空気圧供給ポート３５ｓに接続し、中間ポ
ート２９を真空ポンプ４３に接続する。これにより中間
チャンバ２３が減圧され、図３に示されている如く、化
粧シートＳがゴム状弾性膜７に密着する。これにより化
粧シートＳが基材Ｗより離れ、またゴム状弾性膜７の熱
が化粧シートＳへ伝導し、ゴム状弾性膜７の加熱軟化が
行われる。この加熱軟化時間は２０〜３０秒程度であっ
てよい。In this state, the switching valve 35 is switched to connect the intermediate port 29 to the air pressure supply port 35 s and connect the intermediate port 29 to the vacuum pump 43. As a result, the pressure in the intermediate chamber 23 is reduced, and the decorative sheet S adheres to the rubber-like elastic film 7 as shown in FIG. Thereby, the decorative sheet S is separated from the base material W, and the heat of the rubber-like elastic film 7 is conducted to the decorative sheet S, so that the rubber-like elastic film 7 is heated and softened. This heating softening time may be about 20 to 30 seconds.
【００２０】次に切換弁３７を切り換えて下部ポート３
１を空気圧供給ポート３７ｓに接続し、下部ポート３１
を真空ポンプ４３に接続する。これにより下部チャンバ
２５が減圧され、下部チャンバ２５内の空気が外部が排
除されて下部チャンバ２５が真空状態になる。次に切換
弁３９を切り換えて空気圧供給ポート３３ｓを空気加圧
ポンプ４１に接続する。これにより上部チャンバ９に加
圧空気が供給されて上部チャンバ９が加圧され、上部チ
ャンバ９と下部チャンバ２５との間に差圧が生じるよう
になる。この差圧によりゴム状弾性膜７は、図４に示さ
れている如く、化粧シートＳを介して基材Ｗの外表面
に、これを包むように密着する。この場合の加圧空気は
４〜５ｋｇ／ｃｍ2であってよい。Next, the switching valve 37 is switched so that the lower port 3
1 to the air pressure supply port 37s, and the lower port 31
Is connected to the vacuum pump 43. As a result, the pressure in the lower chamber 25 is reduced, the air in the lower chamber 25 is removed from the outside, and the lower chamber 25 is evacuated. Next, the switching valve 39 is switched to connect the air pressure supply port 33 s to the air pressure pump 41. As a result, pressurized air is supplied to the upper chamber 9 to pressurize the upper chamber 9, so that a pressure difference is generated between the upper chamber 9 and the lower chamber 25. Due to this pressure difference, the rubber-like elastic film 7 comes into close contact with the outer surface of the base material W via the decorative sheet S so as to wrap it, as shown in FIG. The pressurized air in this case may be 4-5 kg / cm 2 .
【００２１】この後に、切換弁３３を切り換えて上部ポ
ート２７をドレンポート３３ｄに接続し、上部チャンバ
９を大気圧に戻すことにより、ゴム状弾性膜７は元の状
態に戻って化粧シートＳより離れる。これにより化粧シ
ートＳが基材Ｗの外表面に密着し、積層成形がなされ
る。そして切換弁３５、３７を各々切り換えて中間ポー
ト２９をドレンポート３５ｄに、上部ポート２７をドレ
ンポート３７ｄに各々接続し、中間チャンバ２３と下部
チャンバ２５を各々大気圧に戻すことより、一回の真空
プレス積層成形が完了する。Thereafter, the switching valve 33 is switched to connect the upper port 27 to the drain port 33d, and the upper chamber 9 is returned to the atmospheric pressure. Leave. As a result, the decorative sheet S comes into close contact with the outer surface of the base material W, and the laminate is formed. By switching the switching valves 35 and 37 respectively to connect the intermediate port 29 to the drain port 35d, connect the upper port 27 to the drain port 37d, and return the intermediate chamber 23 and the lower chamber 25 to atmospheric pressure, one time Vacuum press lamination molding is completed.
【００２２】尚、化粧シートＳの材料としては、ポリ塩
化ビニル，ポリ塩化ビニリデン，ポリ酢酸ビニル−塩化
ビニル共重合体，ポリフッ化ビニル，ポリビニルブチラ
ール，ポリフッ化ビニリデン等のビニル重合体、ポリス
チレン、アクリルスチレン、ＡＢＳ等のスチレン系樹
脂、ポリメタクリル酸エチル，ポリメタクリル酸メチ
ル，ポリアクリロニトリル等のアクリル樹脂、ポリエチ
レン，ポリプロピレン，ポリメチルペンテン等のポリオ
レフィン、酢酸セルロース，ニトロセルロース等のセル
ローズ誘導体、ナイロン６，ナイロン６６等のポリアミ
ド樹脂、ポリエチレンテレフタレート，ポリエチレンテ
レフタレート−イソフタレート共重合体，ポリブチレン
テレフタレート，ポリアクリレート等のポリエステル樹
脂、ブタジエン，クロロプレンゴム、シリコンゴム等の
ゴム系樹脂、ビニロン，ポレビニルアルコール等のポリ
ビニルアルコール系樹脂、ポリカーボネート等が挙げら
れ、厚さは、２０〜２００μｍ程度であってよく、特に
成形適性の点から５０〜１００μｍであることが望まし
い。The material of the decorative sheet S includes vinyl polymers such as polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate-vinyl chloride copolymer, polyvinyl fluoride, polyvinyl butyral, and polyvinylidene fluoride, polystyrene, and acrylic. Styrene resins such as styrene and ABS; acrylic resins such as polyethyl methacrylate, polymethyl methacrylate, and polyacrylonitrile; polyolefins such as polyethylene, polypropylene and polymethylpentene; cellulose derivatives such as cellulose acetate and nitrocellulose; Polyamide resin such as nylon 66, polyethylene terephthalate, polyethylene terephthalate-isophthalate copolymer, polyester resin such as polybutylene terephthalate, polyacrylate, butadiene, Rubber-based resins such as plain rubber and silicone rubber; polyvinyl alcohol-based resins such as vinylon and polyvinyl alcohol; and polycarbonate. The thickness may be about 20 to 200 μm, and particularly 50 to 100 μm from the viewpoint of moldability. It is desirable that
【００２３】化粧シートＳには、意匠性の賦与のため
に、シートに着色、各種模様印刷、金属蒸着等が施され
て良い。また、化粧シートＳと基材Ｗとの接着性の向上
のために、シート表面にコロナ放電処理、公知の各種プ
ライマ塗工等が行われても良い。The decorative sheet S may be subjected to coloring, printing of various patterns, metal deposition, etc., to impart design properties. Further, in order to improve the adhesiveness between the decorative sheet S and the base material W, the sheet surface may be subjected to corona discharge treatment, various known primer coating, and the like.
【００２４】[0024]
【発明の効果】以上の説明から理解される如く、本発明
による真空プレス積層成形方法および装置によれば、中
間チャンバを減圧して化粧シートの如き合成樹脂シート
を基材より引き離した状態にて下部チャンバを減圧する
から、基材と合成樹脂シートとの間の空気が合成樹脂シ
ートにより阻害されることなく確実に排除され、この後
に上部チャンバが加圧されることにより、上部チャンバ
と下部チャンバとの差圧をもって合成樹脂シートが真空
状態にて基材に密着するようになり、これにより基材と
合成樹脂シートとの間に空気が噛み込むことが確実に回
避され、これに基づき通気性を備えていない基材に対す
る積層成形も可能になり、しかも良質な積層成形品を能
率よく生産できるようになる。As will be understood from the above description, according to the vacuum press lamination molding method and apparatus of the present invention, the intermediate chamber is depressurized and the synthetic resin sheet such as a decorative sheet is separated from the base material. Since the pressure in the lower chamber is reduced, the air between the base material and the synthetic resin sheet is reliably eliminated without being disturbed by the synthetic resin sheet, and thereafter the upper chamber is pressurized, whereby the upper chamber and the lower chamber are pressurized. The synthetic resin sheet comes into close contact with the base material in a vacuum state due to the pressure difference between the base material and the base material. It is also possible to perform lamination molding on a base material that is not provided with, and to efficiently produce a high-quality laminated molded product.
【００２５】また中間チャンバを減圧して合成樹脂シー
トを基材より引き離した時には、この合成樹脂シートは
ゴム状弾性膜に接触し、加熱されたゴム状弾性膜より伝
導により加熱されるから、この加熱が熱効率よく確実に
行われるようになり、良質な積層成形品を能率よく安定
して生産できるようになる。When the synthetic resin sheet is separated from the substrate by depressurizing the intermediate chamber, the synthetic resin sheet comes into contact with the rubber-like elastic film and is heated by conduction from the heated rubber-like elastic film. Heating can be performed with good thermal efficiency, and a high-quality laminated molded product can be efficiently and stably produced.
【図１】本発明による真空プレス積層成形装置の一実施
例を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing one embodiment of a vacuum press lamination molding apparatus according to the present invention.
【図２】本発明による真空プレス積層成形装置を一作用
工程について示す要部の縦断面図である。FIG. 2 is a longitudinal sectional view of a main part showing a vacuum press laminating and forming apparatus according to the present invention in one operation step.
【図３】本発明による真空プレス積層成形装置を他の一
つの作用工程について示す要部の縦断面図である。FIG. 3 is a longitudinal sectional view of a main part showing another operation process of the vacuum press lamination molding apparatus according to the present invention.
【図４】本発明による真空プレス積層成形装置を他の一
つの作用工程について示す要部の縦断面図である。FIG. 4 is a longitudinal sectional view of a main part showing another operation process of the vacuum press lamination molding apparatus according to the present invention.
１ 流体圧シリンダ装置 ３ 上部チャンバ部材 ５ 下部チャンバ部材 ７ ゴム状弾性膜 ９ 上部チャンバ １３ ストッパプレート １９ 基材載置台 ２３ 中間チャンバ ２５ 下部チャンバ ４１ 空気加圧ポンプ ４３ 真空ポンプ Ｗ 基材 Ｓ 化粧シートＳ Reference Signs List 1 fluid pressure cylinder device 3 upper chamber member 5 lower chamber member 7 rubber-like elastic film 9 upper chamber 13 stopper plate 19 substrate mounting table 23 intermediate chamber 25 lower chamber 41 air pressure pump 43 vacuum pump W substrate S decorative sheet S
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭52−23172（ＪＰ，Ａ) 特開 昭57−105310（ＪＰ，Ａ) 特開 昭61−47259（ＪＰ，Ａ) 特開 平３−286835（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 65/00 - 65/82 B29C 63/00 - 63/48 B32B 1/00 - 35/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-23172 (JP, A) JP-A-57-105310 (JP, A) JP-A-61-47259 (JP, A) JP-A-3-3 286835 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B29C 65/00-65/82 B29C 63/00-63/48 B32B 1/00-35/00
Claims (4)
ャンバと第二のチャンバとを設け、その第二のチャンバ
に基材と積層用の合成樹脂シートとを配置して該合成樹
脂シートにより前記第二のチャンバをゴム状弾性膜側の
第三のチャンバと前記基材を含む第四のチャンバとに区
分し、前記第一のチャンバと前記第三のチャンバとを減
圧して前記合成樹脂シートを前記基材より引き離してゴ
ム状弾性膜側に引き付け、次に前記第四のチャンバを減
圧して該第四のチャンバの空気を排除し、次に前記第一
のチャンバを加圧して前記ゴム状弾性膜により前記合成
樹脂シートを前記基材の外表面に密着積層することを特
徴とする真空プレス積層成形方法。1. A synthetic resin sheet comprising a first chamber and a second chamber separated by a rubber-like elastic film, wherein a base material and a synthetic resin sheet for lamination are arranged in the second chamber. The second chamber is divided into a third chamber on the rubber-like elastic film side and a fourth chamber including the base material, and the first chamber and the third chamber are decompressed and the synthesis is performed. The resin sheet is pulled away from the base material and attracted to the rubber-like elastic film side, and then the fourth chamber is depressurized to eliminate air in the fourth chamber, and then pressurized in the first chamber. A vacuum press lamination molding method, wherein the synthetic resin sheet is closely adhered and laminated on the outer surface of the substrate by the rubber-like elastic film.
バとを減圧して前記合成樹脂シートを前記基材より引き
離してゴム状弾性膜側に引き付ける時に前記合成樹脂シ
ートを前記ゴム状弾性膜に接触させて加熱状態の前記ゴ
ム状弾性膜により前記合成樹脂シートを加熱し軟化させ
ることを特徴とする請求項１に記載の真空プレス積層成
形方法。2. When the first chamber and the third chamber are decompressed and the synthetic resin sheet is separated from the base material and pulled toward the rubber-like elastic film, the synthetic resin sheet is removed from the rubber-like elastic film. 2. The vacuum press laminating method according to claim 1, wherein the synthetic resin sheet is heated and softened by the rubbery elastic film in a heated state by contacting the synthetic resin sheet.
れ、上部チャンバ部材の内側に上部チャンバを構成する
ゴム状弾性膜と、 基材を配置され、前記上部チャンバ部材と選択的に接合
されて前記上部チャンバ部材との接合部に積層用の合成
樹脂シートを配置され、前記合成樹脂シートと前記ゴム
状弾性膜との間に中間チャンバを、その反対側に下部チ
ャンバを各々構成する下部チャンバ部材と、 前記上部チャンバと前記中間チャンバと前記下部チャン
バの各々に選択的に負圧を供給する負圧供給手段と、 前記上部チャンバに選択的に加圧空気を供給する加圧空
気供給手段と、 を有していることを特徴とする真空プレス積層成形装
置。3. An upper chamber member having a lower opening, a rubber-like elastic film attached to the upper chamber member so as to close the lower opening, and forming an upper chamber inside the upper chamber member; A synthetic resin sheet for lamination is selectively bonded to the upper chamber member and arranged at a joint with the upper chamber member, and an intermediate chamber is provided between the synthetic resin sheet and the rubber-like elastic film. A lower chamber member forming a lower chamber on the side; negative pressure supply means for selectively supplying a negative pressure to each of the upper chamber, the intermediate chamber, and the lower chamber; and selectively pressurizing the upper chamber. A vacuum press lamination molding apparatus, comprising: pressurized air supply means for supplying air.
膜の前記上部チャンバ側への移動を制限する通気性構造
のストッパ部材を有し、前記ストッパ部材は加熱要素を
含んでいることを特徴とする請求項３に記載の真空プレ
ス積層成形装置。4. The upper chamber member has a stopper member having a gas-permeable structure for restricting the movement of the rubber-like elastic film to the upper chamber side, and the stopper member includes a heating element. The vacuum press lamination molding apparatus according to claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03194468A JP3102916B2 (en) | 1991-08-02 | 1991-08-02 | Vacuum press lamination molding method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03194468A JP3102916B2 (en) | 1991-08-02 | 1991-08-02 | Vacuum press lamination molding method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0531743A JPH0531743A (en) | 1993-02-09 |
| JP3102916B2 true JP3102916B2 (en) | 2000-10-23 |
Family
ID=16325055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03194468A Expired - Lifetime JP3102916B2 (en) | 1991-08-02 | 1991-08-02 | Vacuum press lamination molding method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3102916B2 (en) |
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