JP3217117B2 - Vacuum press laminating apparatus and method - Google Patents

Vacuum press laminating apparatus and method

Info

Publication number
JP3217117B2
JP3217117B2 JP10000392A JP10000392A JP3217117B2 JP 3217117 B2 JP3217117 B2 JP 3217117B2 JP 10000392 A JP10000392 A JP 10000392A JP 10000392 A JP10000392 A JP 10000392A JP 3217117 B2 JP3217117 B2 JP 3217117B2
Authority
JP
Japan
Prior art keywords
decorative sheet
temperature
rubber
molding
elastic film
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
Application number
JP10000392A
Other languages
Japanese (ja)
Other versions
JPH05293895A (en
Inventor
荒木　　登
功 吉村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP10000392A priority Critical patent/JP3217117B2/en
Publication of JPH05293895A publication Critical patent/JPH05293895A/en
Application granted granted Critical
Publication of JP3217117B2 publication Critical patent/JP3217117B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/16—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material applied by "rubber" bag or diaphragm
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1412—Infrared [IR] radiation
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/242—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool the heat transfer being achieved by contact, i.e. a heated tool being brought into contact with the welding tool and afterwards withdrawn from it
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/724—Doors

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、各種音響・映像機器類
のキャビネット，扉等の建具、家具，容器等の立体形状
を有した成形基材の外表面に絵柄模様等が施された転写
シートや貼着シート等の化粧シートを接着して積層成形
するのに好適な真空プレス積層成形装置及び方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer method in which a pattern or the like is applied to the outer surface of a three-dimensionally formed base material such as cabinets, doors and other fittings, furniture, containers and the like of various audio and visual equipment. The present invention relates to a vacuum press lamination molding apparatus and method suitable for laminating and molding decorative sheets such as sheets and adhesive sheets.

【０００２】[0002]

【従来の技術】化粧シートを成形基材の外表面に接着し
て積層する装置としては、例えば、図１２に示される如
くの真空プレス積層成形装置が知られている（実公昭４
６−９２７６号，特公昭６０−８９２４号，特公昭６０
−５８０１４号公報等も参照）。2. Description of the Related Art As an apparatus for bonding and laminating a decorative sheet on the outer surface of a forming substrate, for example, a vacuum press laminating apparatus as shown in FIG.
No. 6-9276, JP-B-60-8924, JP-B-60
-58014 and the like).

【０００３】この装置１０は、簡略に説明すれば、成形
基材５上に置かれる化粧シートＳに対向配置されるゴム
状弾性膜１４を有するシート側チャンバ（上型）１１
と、成形基材５及びそれを支持固定するための載置台６
が配置される、所要数の通気孔２３が形成された吸引置
台２２が設けられた基材側チャンバ（下型）２１とを有
し、シート側チャンバ１１を基材側チャンバ２１側に下
降させてそれらの型締めを行い、かつ、基材側チャンバ
２１内の空気を真空吸引するとともに必要に応じてシー
ト側チャンバ１１内を加圧することにより、それら２つ
のチャンバ間に圧力差を生じさせてゴム状弾性膜１４を
化粧シートＳに圧接させ、かつ、ゴム状弾性膜１４をシ
ート側チャンバ１１内に設けられた赤外線輻射ヒーター
等の加熱手段１５で加熱することにより、化粧シートＳ
をゴム状弾性膜１４で成形基材Ｓの外表面に押し付ける
とともに、ゴム状弾性膜１４の熱によって化粧シートＳ
を軟化させて接着するようにされる。[0003] Briefly, this apparatus 10 is a sheet-side chamber (upper die) 11 having a rubber-like elastic film 14 disposed opposite to a decorative sheet S placed on a molding substrate 5.
And a molding base 5 and a mounting table 6 for supporting and fixing the molding base 5
And a substrate-side chamber (lower die) 21 provided with a suction table 22 having a required number of ventilation holes 23 formed therein. The sheet-side chamber 11 is lowered to the substrate-side chamber 21 side. The mold is clamped, and the air in the substrate-side chamber 21 is vacuum-evacuated and, if necessary, the interior of the sheet-side chamber 11 is pressurized to generate a pressure difference between the two chambers. The rubber-like elastic film 14 is pressed against the decorative sheet S, and the rubber-like elastic film 14 is heated by a heating means 15 such as an infrared radiation heater provided in the sheet-side chamber 11, so that the decorative sheet S
Is pressed against the outer surface of the molding base material S with the rubber-like elastic film 14, and the decorative sheet S is heated by the heat of the rubber-like elastic film 14.
To be softened and adhered.

【０００４】なお、かかる装置は、一般に化粧シートが
貼着シートである場合を想定したものであるが、化粧シ
ートが転写シートである場合にも適用でき、その場合
は、シートを接着後に転写層部分を残して離型性基材シ
ートのみを剥離するようにされる。上述の如き従来の真
空プレス積層成形装置によれば、チャンバ間の圧力差だ
けでなくゴム状弾性膜による押圧力が化粧シートに加え
られるとともに、ゴム状弾性膜を介して化粧シートが加
熱されるので、化粧シートの成形基材への押し付け及び
加熱軟化を充分にしかも均一に行うことが可能となり、
良好な成形性が得られるはずである。[0004] Such an apparatus is generally assumed to be a case where the decorative sheet is a sticking sheet, but can also be applied to a case where the decorative sheet is a transfer sheet. Only the releasable base material sheet is peeled off leaving a part. According to the conventional vacuum press lamination molding apparatus as described above, not only the pressure difference between the chambers but also the pressing force by the rubber-like elastic film is applied to the decorative sheet, and the decorative sheet is heated via the rubber-like elastic film. Therefore, it is possible to sufficiently and uniformly press and heat soften the decorative sheet against the forming base material,
Good moldability should be obtained.

【０００５】[0005]

【発明が解決しようとする課題】上記した従来の真空プ
レス積層成形装置では、加熱手段は、単一もしくは数本
〜５，６本のヒーターからなっているが、その加熱温度
（発熱温度）は、成形基材の各部の形状等とは無関係に
同一温度となるように制御され、従って、化粧シートの
各部は加熱手段によりゴム状弾性膜を介して実質的に均
等に加熱されるようになっている。In the above-described conventional vacuum press laminating apparatus, the heating means comprises a single heater or several to five or six heaters. Therefore, the temperature is controlled so as to be the same regardless of the shape of each part of the molding base material, so that each part of the decorative sheet is substantially uniformly heated by the heating means via the rubbery elastic film. ing.

【０００６】ところが、上述の如くの真空プレス積層成
形装置を用いて化粧シートを立体形状を有する成形基材
に接着する場合、化粧シートに要求される加熱温度は、
その成形基材の各部の形状等に応じて、換言すれば、成
形時において化粧シートが曲げられる量もしくは伸ばさ
れる量に応じて異なる。すなわち、成形基材に、例え
ば、曲面部分，凹凸部分，段差等がある場合、化粧シー
トの加熱温度が平坦面部分に適した比較的低い温度であ
ると、上記曲面部分等では低すぎることになる。加熱温
度が低すぎると、曲面部分等では化粧シートの軟化度合
いが不足して化粧シートが充分に曲げられもしくは伸ば
されず、化粧シートの曲げ追従性が低下して成形基材の
曲面部分等に密着させることが難しくなり、接着不良，
転写不良，ふくれ等の成形不良が発生し易い。However, when the decorative sheet is bonded to a three-dimensionally shaped base material using the vacuum press laminating and forming apparatus as described above, the heating temperature required for the decorative sheet is as follows:
It differs depending on the shape of each part of the molding base material, in other words, according to the amount by which the decorative sheet is bent or stretched during molding. That is, for example, when the forming base material has a curved surface portion, an uneven portion, a step, and the like, if the heating temperature of the decorative sheet is a relatively low temperature suitable for the flat surface portion, the heating temperature of the curved surface portion is too low. Become. If the heating temperature is too low, the decorative sheet will not be sufficiently bent or stretched due to insufficient softening of the decorative sheet at the curved surface, etc., and the bending followability of the decorative sheet will be reduced, and the decorative sheet will adhere to the curved surface of the molding substrate, etc. It is difficult to make
Molding defects such as transfer defects and blisters are likely to occur.

【０００７】それに対し、化粧シートの加熱温度が曲面
部分等に適した比較的高い温度であると、化粧シートに
不所望な変形、流動（波打ち等）が発生したり、軟化し
すぎて成形基材表面の微小な凹凸等の影響を受け易くな
り、鏡面性が要求される平坦面部分がざらついたり凸凹
状となったりして、鏡面性が失われあるいは不充分とな
り、満足な成形品が得られない。[0007] On the other hand, if the heating temperature of the decorative sheet is a relatively high temperature suitable for a curved surface portion or the like, the decorative sheet may be undesirably deformed or flowed (undulating), or may be excessively softened to form the base material. The surface of the material becomes more susceptible to minute irregularities, etc., and the flat surface that requires mirror surface becomes rough or uneven, and the mirror surface is lost or insufficient, and a satisfactory molded product is obtained. I can't.

【０００８】また、従来の真空プレス積層成形方法で
は、加熱手段によるゴム状弾性膜の加熱が空気を介して
間接的に行うようにされているが、加熱手段とゴム状弾
性膜との間で空気の対流やゆらぎが発生するため、ゴム
状弾性膜の温度、ひいては化粧シートの温度を高精度に
制御することが難しく、温度分布のばらつきや経時変動
等が発生して接着不良，転写不良，柄伸び等を招くとい
った問題もある。Further, in the conventional vacuum press laminating method, the heating of the rubber-like elastic film by the heating means is performed indirectly through the air. Since air convection and fluctuations occur, it is difficult to control the temperature of the rubber-like elastic film, and thus the temperature of the decorative sheet, with high accuracy, and unevenness in temperature distribution and variation over time occur, resulting in poor adhesion, poor transfer, There is also a problem that pattern elongation is caused.

【０００９】かかる点に鑑み本発明は、チャンバ間の圧
力差に加えてゴム状弾性膜による押圧力を化粧シートに
与えるとともに、ゴム状弾性膜を介して化粧シートを加
熱するようにされたもとで、化粧シートの加熱温度を成
形基材の各部の形状等に適した温度に制御できるように
されて、平坦面部分の鏡面性を確保しつつ曲面部分等の
曲げ追従性を低下させることのないようにされ、高品質
の成形品を安定して得ることができるようにされた真空
プレス積層成形装置及び方法を提供することを目的とす
る。In view of the above, the present invention provides a decorative sheet which is given a pressing force by a rubber-like elastic film in addition to a pressure difference between chambers, and heats the decorative sheet via the rubber-like elastic film. In addition, the heating temperature of the decorative sheet can be controlled to a temperature suitable for the shape of each part of the molding base material, so that the flat surface portion can maintain the mirror finish while the bending followability of the curved portion does not decrease. It is an object of the present invention to provide a vacuum press lamination molding apparatus and method capable of stably obtaining a high quality molded product.

【００１０】[0010]

【課題を解決するための手段】上述の目的を達成すべ
く、本発明は、基本的には、基材側チャンバに設けられ
た吸引置台上に成形基材が配置され、その成形基材上に
化粧シートがセットされるとともに、シート側チャンバ
に設けられたゴム状弾性膜が上記化粧シートに対向配置
され、上記シート側チャンバ内に設けられた加熱手段に
より上記ゴム状弾性膜を加熱するとともに、上記シート
側チャンバと基材側チャンバとの間に圧力差を生じさ
せ、もって上記化粧シートを上記ゴム状弾性膜によって
軟化させるとともに上記成形基材の外表面に押し付けて
接着するようにされる。Means for Solving the Problems In order to achieve the above-mentioned object, the present invention basically provides a method in which a molding substrate is arranged on a suction table provided in a substrate-side chamber, and A decorative sheet is set on the rubber sheet, and a rubber-like elastic film provided in the sheet-side chamber is disposed to face the decorative sheet, and the rubber-like elastic film is heated by heating means provided in the sheet-side chamber. A pressure difference is generated between the sheet-side chamber and the substrate-side chamber, so that the decorative sheet is softened by the rubber-like elastic film, and is pressed against and adhered to the outer surface of the molding substrate. .

【００１１】そして、加熱手段が少なくとも２つのブロ
ックに区分されていて、そのブロック毎に個別に加熱温
度を制御できるように構成されていることを特徴として
いる。また、本発明に係る真空プレス積層成形方法は、
上述の如き真空プレス積層成形装置を用いて化粧シート
を成形基材に接着するに際し、ゴム状弾性膜を介して化
粧シートを加熱する加熱手段の各ブロックのうちの、成
形時において化粧シートの曲げ量もしくは伸び量が比較
的大なる部位を加熱するためのブロックの温度を、上記
曲げ量もしくは伸び量が比較的小なる部位を加熱するた
めのブロックの温度より高く設定することを特徴として
いる。[0011] The heating means is divided into at least two blocks, and is characterized in that the heating temperature can be individually controlled for each of the blocks. Further, the vacuum press lamination molding method according to the present invention,
When the decorative sheet is adhered to the forming base material using the vacuum press laminating and forming apparatus as described above, the decorative sheet is bent at the time of molding, of each block of the heating means for heating the decorative sheet through the rubbery elastic film. The temperature of a block for heating a portion having a relatively large amount or elongation is set higher than the temperature of a block for heating a portion having a relatively small amount of bending or elongation.

【００１２】この場合、ゴム状弾性膜を加熱手段に直接
的に押し当てた状態で加熱すること、さらには、化粧シ
ートを成形基材に押し付けるより以前に、ゴム状弾性膜
を加熱手段に直接的に当接させ、かつ、化粧シートを上
記ゴム状弾性膜に直接的に当接させた状態で加熱するこ
と、が好ましい態様として挙げられる。本発明におい
て、加熱手段を複数のブロックに区分する場合、その区
分の仕方は、成形基材の形状等に応じて任意に選定する
ことができ、また、各ブロック毎に設定される加熱温度
も成形基材の形状や化粧シートの材質，厚み等を考慮し
て任意に選定できる。なお、一つのブロックを一つのヒ
ーターで構成してもよいし、複数のヒーターで構成して
もよく、また、区分されたブロックが３以上ある場合、
それらの加熱温度を全て異ならせて設定してもよいし、
２以上のブロックの加熱温度を同一に設定してもよい。In this case, heating is performed while the rubber-like elastic film is directly pressed against the heating means. Further, before the decorative sheet is pressed against the forming base material, the rubber-like elastic film is directly applied to the heating means. It is preferable that the decorative sheet is heated while the decorative sheet is in direct contact with the rubber-like elastic film. In the present invention, when the heating means is divided into a plurality of blocks, the way of division can be arbitrarily selected according to the shape of the molding base material, and the heating temperature set for each block is also set. It can be arbitrarily selected in consideration of the shape of the molding base, the material and thickness of the decorative sheet, and the like. In addition, one block may be constituted by one heater, or may be constituted by a plurality of heaters, and when there are three or more divided blocks,
You may set all of these heating temperatures differently,
The heating temperature of two or more blocks may be set the same.

【００１３】加熱手段の各ブロックの個々の加熱温度の
制御は、サーモスタット等を用いたｏｎ−ｏｆｆ制御、
サイリスタを用いた位相流通角制御、スライダックによ
る電圧制御等、公知の制御方法を利用することができ
る。本発明の装置及び方法における接着積層対象とされ
る化粧シートは、合成樹脂製の転写シート及び貼着シー
ト（貼付け積層シート）の両方を含み、さらには、突
板、不織布等の樹脂以外のシート状物でもよく、それら
の裏面側に形成もしくは塗工された接着剤層あるいは成
形基材側に形成もしくは塗工された接着剤層、さらには
それ自体が持つ接着性が熱等により活性化もしくは発現
せしめられることにより成形基材に接着される。Control of the individual heating temperature of each block of the heating means includes on-off control using a thermostat or the like,
Known control methods such as phase flow angle control using a thyristor and voltage control using a slidac can be used. The decorative sheet to be bonded and laminated in the apparatus and method of the present invention includes both a synthetic resin transfer sheet and a sticking sheet (sticking laminated sheet). The adhesive layer formed or coated on the back surface side or the adhesive layer formed or coated on the molding substrate side, or the adhesive property of itself is activated or developed by heat or the like. By being pressed, it is adhered to the molding base material.

【００１４】上記転写シートは、離型性基材シートと転
写層とからなり、基材シートの材料としては、ポリ塩化
ビニル、ナイロン６、ナイロン６６等のポリアミド、ボ
リエチレン、ポリプロピレン等のポリオレフィン、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等の低結晶性ポリエステル、
ポリ塩化ビニル、ビニロン等、可撓性を有する熱可塑性
樹脂フィルム、あるいはこれらの積層体が適宜用いら
れ、また必要に応じ設けられる離型層としては、可撓
性、成形時の耐熱性、剥離層と転写層との焼きつき防止
等の目的から熱硬化型のアクリル、メラミン、ウレタ
ン、ポリエステル、アミノアルキッド、エポキシ等の樹
脂の１種または２種以上の混合物を用いることが好まし
い。一方、上記装飾転写層は、通常、絵柄層のみから
なるもの（ただし、熱可塑性樹脂をバインダーとしてい
て感熱接着剤層を兼ね、染料，顔料等を添加）、絵柄
層と感熱接着剤層とからなるもの、剥離層，絵柄層，
及び感熱接着剤層らなるもの、剥離層と絵柄層からな
るもの、があり、それらはセルロース系樹脂、スチレン
系樹脂、アクリル系樹脂、ビニル系樹脂、ポリウレタン
系樹脂、ポリアミド樹脂等の天然又は合成樹脂が適宜用
いられ、絵柄層には、印刷インキ模様、アルミニウム等
の金属蒸着等が施される。The transfer sheet is composed of a release base sheet and a transfer layer. The base sheet material may be a polyamide such as polyvinyl chloride, nylon 6, nylon 66, a polyolefin such as polyethylene or polypropylene, or a polyethylene. Terephthalate, low crystalline polyesters such as polyethylene terephthalate-isophthalate copolymer,
A thermoplastic resin film having flexibility, such as polyvinyl chloride or vinylon, or a laminate thereof is appropriately used, and a release layer provided as necessary includes flexibility, heat resistance during molding, and peeling. It is preferable to use one or a mixture of two or more kinds of thermosetting resins such as acrylic, melamine, urethane, polyester, amino alkyd, and epoxy for the purpose of preventing seizure between the layer and the transfer layer. On the other hand, the decorative transfer layer is usually composed only of a pattern layer (however, a thermoplastic resin is used as a binder and also serves as a heat-sensitive adhesive layer, and a dye, a pigment, and the like are added). , Peeling layer, picture layer,
And those consisting of a heat-sensitive adhesive layer, those consisting of a release layer and a picture layer, which are natural or synthetic such as cellulose resin, styrene resin, acrylic resin, vinyl resin, polyurethane resin, polyamide resin, etc. Resin is appropriately used, and a printing ink pattern, metal deposition of aluminum or the like is applied to the pattern layer.

【００１５】また、上記貼付け積層シートは、基材シー
トと感熱接着剤層とからなるものが使用され、基材シー
トに意匠性付与及び工業的機能付与のため、各種模様印
刷、金属蒸着等の装飾処理や化学もしくは物理的処理等
が適宜施される。また、貼付け積層シート自体で接着性
を有する場合、及び、成形基材側に接着剤層が形成もし
くは塗工されている場合は、感熱接着剤層を省略するこ
とができ、その場合は、必要に応じて成形基材との接着
性向上のため、コロナ放電処理、各種プライマ塗工等が
行われてもよい。基材シートの材料としては、熱可塑性
を有するフィルムであり、前記離型性基材シートの材料
以外に、アクリル樹脂、ＡＢＳ（アクリルニトリル−ブ
タジエン−スチレン共重合体）、ポリスチレンも使用で
きる。この場合離型性は不要である。The above-mentioned laminated sheet is composed of a base material sheet and a heat-sensitive adhesive layer. In order to impart design properties and industrial functions to the base material sheet, various kinds of pattern printing, metal deposition, etc. Decoration processing, chemical or physical processing, or the like is appropriately performed. In addition, when the adhesive laminated sheet itself has adhesiveness, and when an adhesive layer is formed or applied on the molding base material side, the heat-sensitive adhesive layer can be omitted. Corona discharge treatment, various types of primer coating, and the like may be performed in order to improve the adhesiveness with the molding base according to the conditions. The material of the base sheet is a film having thermoplasticity. In addition to the material of the release base sheet, an acrylic resin, ABS (acrylonitrile-butadiene-styrene copolymer), and polystyrene can also be used. In this case, releasability is not required.

【００１６】上述した転写シート及び貼付け積層シート
の接着に用いられる感熱接着剤層は、熱可塑性樹脂、ア
イオノマー等を適宜用いることができる。樹脂として
は、例えば、エチルセルロース、硝酸セルロース、酢酸
セルロース、エチルヒドロキシエチルセルロース、セル
ロースアセテートプロピオネート等のセルロース誘導
体、ポリスチレン、ポリα−メチルスチレン等のスチレ
ン樹脂又はスチレン共重合体、ポリメタクリル酸メチ
ル、ポリメタクリル酸エチル、ポリアクリル酸エチル、
ポリアクリル酸ブチル等のアクリル樹脂、ポリ塩化ビニ
ル、ポリ酢酸ビニル、塩化ビニル−酢酸ビニル共重合
体、エチレン−ビニルアルコール共重合体、ポリビニル
ブチラール等のビニル重合体、ポリウレタン等が挙げら
れる。For the heat-sensitive adhesive layer used for bonding the above-mentioned transfer sheet and adhesive laminated sheet, a thermoplastic resin, an ionomer or the like can be appropriately used. As the resin, for example, ethyl cellulose, cellulose nitrate, cellulose acetate, ethyl hydroxyethyl cellulose, cellulose derivatives such as cellulose acetate propionate, polystyrene, a styrene resin such as poly α-methylstyrene or a styrene copolymer, polymethyl methacrylate, Polyethyl methacrylate, polyethyl acrylate,
Examples include acrylic resins such as polybutyl acrylate, polyvinyl chloride, polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, vinyl polymers such as polyvinyl butyral, and polyurethane.

【００１７】さらに、本発明の真空プレス積層成形方法
における被接着対象とされる成形基材は、平板、曲面板
等の板状体は勿論のこと凹凸部等のある比較的複雑な立
体物でもよく、その材質も特に限定されず、木質、合成
樹脂、金属、陶磁器等のいずれもでもよい。この場合、
合成樹脂成形品の材質としては、ＡＢＳ、ポリスチレ
ン、アクリル、ポリ塩化ビニル、フェノール樹脂等が挙
げられる。また、成形基材の成形法としては、射出成
形、注型、切削等各種公知手段による。Furthermore, the forming base material to be bonded in the vacuum press laminating method of the present invention is not only a plate-like body such as a flat plate or a curved plate, but also a relatively complicated three-dimensional object having an uneven portion or the like. The material is not particularly limited, and may be any of wood, synthetic resin, metal, and ceramic. in this case,
Examples of the material of the synthetic resin molded product include ABS, polystyrene, acrylic, polyvinyl chloride, and phenol resin. Further, as a molding method of the molding base material, various known means such as injection molding, casting, and cutting are used.

【００１８】[0018]

【作用】上述の如くの構成とされた本発明に係る真空プ
レス積層成形装置においては、加熱手段が少なくとも２
つのブロックに区分されていて、そのブロック毎に個別
に加熱温度が制御される。具体的には、成形基材の形状
等に応じて、成形時に化粧シートの曲げ量もしくは伸び
量が比較的大なる部位を加熱するためのブロックの温度
を、上記曲げ量もしくは伸び量が比較的小なる部位を加
熱するためのブロックの温度より高く設定する。In the vacuum press laminating and forming apparatus according to the present invention having the above-mentioned structure, the heating means is at least two.
The heating temperature is controlled individually for each block. Specifically, the temperature of the block for heating the part where the amount of bending or elongation of the decorative sheet is relatively large at the time of molding, depending on the shape or the like of the forming base material, the amount of bending or elongation is relatively small. Set higher than the temperature of the block for heating the smaller part.

【００１９】これらのブロックの温度は、化粧シートの
表面温度の内、少くとも、成形時に化粧シートの曲げ量
もしくは伸び量が比較的大なる部位の温度が、化粧シー
トを形成する熱可塑性樹脂の破断時の伸度が６０％以上
となる温度以上且つ溶融温度（又は融点）未満となる様
に設定する。また、特に化粧シートの鏡面性が要求され
且つ成形基材の平坦部分に対応する部位は上記温度以下
でもよい。The temperature of these blocks is the surface temperature of the decorative sheet, and at least the temperature of the part where the amount of bending or elongation of the decorative sheet is relatively large at the time of molding is determined by the temperature of the thermoplastic resin forming the decorative sheet. The elongation at break is set to be equal to or higher than the temperature at which the elongation at break becomes 60% or higher and lower than the melting temperature (or melting point). In addition, a part of the decorative sheet which is required to have a mirror-like surface and which corresponds to a flat part of the molding base may be lower than the above temperature.

【００２０】それにより、成形基材に、例えば、曲面部
分，凹凸部分，段差等がある場合、その曲面部分等に対
応する部位の加熱温度が平坦面部分に対応する部位の加
熱温度より高く設定されるので、曲面部分等に対応する
部位では化粧シートが充分に軟化してその曲げ追従性が
向上し、成形基材の曲面部分等に適正に密着させること
が可能となる。また、鏡面性が要求される平坦面部分で
はそれに適した比較的低い加熱温度に設定されるので、
平坦面がざらついたり凸凹状となったりすることはな
く、充分な鏡面性が確保される。Accordingly, when the molding base has, for example, a curved surface portion, an uneven portion, a step, or the like, the heating temperature of the portion corresponding to the curved surface portion is set higher than the heating temperature of the portion corresponding to the flat surface portion. Therefore, the decorative sheet is sufficiently softened at the portion corresponding to the curved surface portion and the like, and its bending followability is improved, so that the decorative sheet can be properly brought into close contact with the curved surface portion and the like of the forming base material. In addition, since a relatively low heating temperature suitable for the flat surface portion where mirror surface is required is set,
The flat surface does not become rough or uneven, and a sufficient specularity is ensured.

【００２１】また、ゴム状弾性膜を加熱手段に直接的に
押し当てた状態で加熱すること、さらには、化粧シート
を成形基材に押し付けるより以前に、ゴム状弾性膜を加
熱手段に直接的に当接させ、かつ、化粧シートを上記ゴ
ム状弾性膜に直接的に当接させた状態で加熱することに
より、それらの間に空気が実質的に介在しないことにな
るため、ゴム状弾性膜の温度、ひいては化粧シートの温
度を高精度に制御することが可能となり、温度分布の不
所望なばらつきや経時変動等が発生し難くなる。In addition, heating is performed while the rubber-like elastic film is directly pressed against the heating means. Further, before the decorative sheet is pressed against the forming base material, the rubber-like elastic film is directly applied to the heating means. When the decorative sheet is heated in a state in which the decorative sheet is in direct contact with the rubber-like elastic film, substantially no air is interposed between them. , And thus the temperature of the decorative sheet, can be controlled with high accuracy, and undesired variations in the temperature distribution and fluctuations with time are less likely to occur.

【００２２】上記のようにされることにより、接着不
良，転写不良，柄伸び等の成形不良の発生が効果的に回
避され、高品質の成形品を安定して得ることができる。By performing the above, the occurrence of molding defects such as adhesion failure, transfer failure and pattern elongation can be effectively avoided, and a high quality molded product can be stably obtained.

【００２３】[0023]

【実施例】以下に添付図面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は本発明の真空プレス積層
成形装置の一例の主要部を示している。真空プレス積層
成形装置１０は、図示されていない支持架構に支持され
た自動ロック機能付き流体圧シリンダ装置１２における
ピストンロッド１３先端に連結されて上下方向に昇降動
されるシート側チャンバ１１と、図示されていない固定
機台上に上記シート側チャンバ１１に対向するように載
設された基材側チャンバ２１とを有している。BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 shows a main part of an example of a vacuum press lamination molding apparatus of the present invention. The vacuum press laminating and forming apparatus 10 includes a seat-side chamber 11 connected to the tip of a piston rod 13 of a fluid pressure cylinder device 12 having an automatic locking function supported on a support frame (not shown) and vertically moved up and down. And a base-side chamber 21 mounted on a fixed machine base not facing the sheet-side chamber 11.

【００２４】シート側チャンバ１１は、下方開口の箱状
をなし、その下方開口部には下面開口を塞ぐように耐熱
性及び伸縮性を有したシリコンラバー等のゴム状弾性膜
１４が張設され、その一方の側面部にはこのチャンバ１
１に対する空気の供給・排出を行うための給排ポート１
６が形成され、かつ、シート側チャンバ１１の開口側底
部には、後で詳述する赤外線輻射式の多数のブロックヒ
ーター２５からなる加熱手段１５が配されている。The seat-side chamber 11 has a box shape with a lower opening, and a rubber-like elastic film 14 such as silicon rubber having heat resistance and elasticity is stretched over the lower opening so as to close the lower surface opening. , On one side of this chamber 1
Supply / discharge port 1 for supplying / discharging air to / from port 1
6 is formed, and a heating means 15 including a large number of infrared radiation type block heaters 25, which will be described in detail later, is arranged at the bottom of the opening side of the seat-side chamber 11.

【００２５】加熱手段１５を構成する多数のブロックヒ
ーター２５は、シート側チャンバ１１の内部に固定され
た支持隔壁部１７に、図５に示される如くに、相互に所
定間隔をあけて縦方向及び横方向に規則正しく配列（こ
こでは４段７列）されて、それらの上面側が断熱材（図
示省略）を介して支持隔壁部１７の厚さ方向に埋め込ま
れるようにして取り付けられている。また、支持隔壁部
１７には、各ブロックヒーター２５の間に位置する部位
に多数の通気孔１９が形成されている。As shown in FIG. 5, a large number of block heaters 25 constituting the heating means 15 are provided on a support partition 17 fixed inside the seat-side chamber 11 at predetermined intervals from each other in the vertical and horizontal directions. They are regularly arranged in the horizontal direction (here, four rows and seven rows), and are mounted such that their upper surfaces are embedded in the thickness direction of the support partition 17 via a heat insulating material (not shown). Further, the support partition 17 has a large number of ventilation holes 19 formed in portions located between the block heaters 25.

【００２６】さらに、シート側チャンバ１１の開口端側
外周には、ゴム状弾性膜１４の外周部を包囲するように
角筒状の気密空間形成部材２０が取り付けられ、その一
方の側面部にはこの気密空間形成部材２０の内外に空気
の供給・排出を行うための給排ポート２４が形成されて
いる。一方、基材側チャンバ２１は、上方開口の箱状を
なし、その上方開口部に多数の透孔２３が所定の配列状
態をもって形成された板状の吸引置台２２が取り付けら
れるとともに、一方の側面部にはこのチャンバ２１に対
する空気の供給・排出を行うための給排ポート２６が形
成されている。また、上記吸引置台２２の上面側中央部
には成形基材５を積層成形時に支持固定するための基材
載置台６が取り付けられている。なお、この載置台６
は、省くこともできるが、成形基材５の側面さらには一
部裏面にまで化粧シートを沿わせるためには、載置台６
を用いることが好ましく、その場合、特に図１に示すよ
うに成形基材５より狭幅の載置台６を用いることが好ま
しい。また、上記基材側チャンバ２１の吸引置台２２上
には、化粧シートＳの周縁部を上記気密空間形成部材２
０との間で挟んで固持するための、固定クランプ台３１
が配されている。この固定クランプ台３１は、載置台６
上に置かれた成形基材５を包囲するように角筒状とされ
ていて、その上端面が、水平面と平行な平坦面とされて
いてそこが成形基材５の最上面より若干低く位置せしめ
られいる。Further, a rectangular tubular airtight space forming member 20 is attached to the outer periphery of the opening end side of the seat-side chamber 11 so as to surround the outer peripheral portion of the rubber-like elastic film 14. A supply / discharge port 24 for supplying and discharging air is formed inside and outside the airtight space forming member 20. On the other hand, the substrate-side chamber 21 has a box shape with an upper opening, and a plate-like suction table 22 having a large number of through holes 23 formed in a predetermined arrangement is attached to the upper opening. A supply / discharge port 26 for supplying / discharging air to / from the chamber 21 is formed in the section. A base mounting table 6 for supporting and fixing the forming base 5 at the time of lamination molding is attached to a central portion on the upper surface side of the suction mounting base 22. In addition, this mounting table 6
Can be omitted, but in order to make the decorative sheet follow the side surface of the molding base 5 or even a part of the back surface, the mounting table 6
In this case, it is particularly preferable to use the mounting table 6 having a width smaller than that of the molding base 5 as shown in FIG. Further, on the suction stage 22 of the substrate-side chamber 21, the peripheral edge of the decorative sheet S is
0, a fixed clamp table 31
Is arranged. The fixed clamp table 31 is mounted on the mounting table 6.
It is formed in a rectangular cylindrical shape so as to surround the molding substrate 5 placed thereon, and its upper end surface is a flat surface parallel to a horizontal plane, and is located slightly lower than the uppermost surface of the molding substrate 5. I'm being swayed.

【００２７】上記給排ポート１６，２６，２４は、図示
されていないがそれぞれ三方切換弁を介してコンプレッ
サ及び真空ポンプに選択的に接続されるようにされてお
り、必要に応じてシート側チャンバ１１内、基材側チャ
ンバ２１内、及びゴム状弾性膜１４と化粧シートＳとの
間に形成される空間をそれぞれ大気開放状態から減圧も
しくは加圧したり一定圧力に保持することができるよう
になっている。Although not shown, the supply / discharge ports 16, 26, and 24 are each selectively connected to a compressor and a vacuum pump via a three-way switching valve. The space formed in the inside 11, the inside of the substrate-side chamber 21, and the space between the rubber-like elastic film 14 and the decorative sheet S can be depressurized or pressurized or kept at a constant pressure from the state open to the atmosphere. ing.

【００２８】このような構成を有する本実施例の真空プ
レス積層成形装置１においては、上述した加熱手段１５
を構成する各ブロックヒーター２５の加熱温度をそれぞ
れを個別に制御できるようにされている。すなわち、各
ブロックヒーター２５は、図７にそれらの一つが模式的
に示される如くに、セラミック材４０等からなる箱型形
状とされ、その中にニクロム線等の抵抗体からなる電熱
線４２が配されたもので、その下面部がゴム状弾性膜１
４を加熱するための熱盤部４７となっている。このブロ
ックヒーター２５には、その加熱温度に応じて開閉する
バイメタル式のサーモスタット４４が配されている。In the vacuum press laminating apparatus 1 of this embodiment having such a configuration, the heating means 15
The heating temperatures of the respective block heaters 25 constituting the respective components can be individually controlled. That is, each of the block heaters 25 has a box shape made of a ceramic material 40 or the like as schematically shown in FIG. 7, and a heating wire 42 made of a resistor such as a nichrome wire is provided therein. The lower surface of the rubber-like elastic film 1
A heating plate portion 47 for heating the heating plate 4 is provided. The block heater 25 is provided with a bimetal type thermostat 44 that opens and closes according to the heating temperature.

【００２９】上記電熱線４２及びサーモスタット４４
は、図７に示される如くに、スイッチ４６を介して電源
４１に接続されるとともに、それらの間に２連式常閉タ
イプのリレー４５が介装されている。これらの電熱線４
２，サーモスタット４４，及びリレー４５を含む制御回
路では、スイッチ４６を閉じると、閉成（ｏｎ）状態の
リレー４５を介して電熱線４２に電流が流れ、電熱線４
２が発熱してヒーター温度Ｔが、縦軸及び横軸にそれぞ
れ温度及び時間がとられた図８に示される如くに上昇す
る。The heating wire 42 and the thermostat 44
As shown in FIG. 7, a power supply 41 is connected to a power supply 41 via a switch 46, and a relay 45 of a double normally closed type is interposed between them. These heating wires 4
2, in the control circuit including the thermostat 44 and the relay 45, when the switch 46 is closed, a current flows through the heating wire 42 via the relay 45 in a closed (on) state, and the heating wire 4
2 generates heat, and the heater temperature T rises as shown in FIG. 8 in which the temperature and time are plotted on the vertical and horizontal axes, respectively.

【００３０】そして、ヒーター温度Ｔがある値Ｔｈに達
すると、サーモスタット４４が閉じ、リレー４５のソレ
ノイドに電流が流れ、リレー４５が開成（ｏｆｆ）し、
電熱線４２への電流供給が遮断され、ヒーター温度Ｔが
低下する。ヒーター温度Ｔが値Ｔｈより低いある値ＴＬ
まで低下すると、サーモスタット４４が開いてリレー４
５が閉成し、ヒーター温度Ｔが上昇する。以下、サーモ
スタット４４が開く温度Ｔｈと閉じる温度ＴＬとの間で
電熱線４２への電流が断続され、ブロックヒーター２５
の加熱温度は実質的にＴｈとＴＬとの中間の温度Ｔｍ付
近に設定されることになる。このことは、各ブロックヒ
ーター２５に配すべきサーモスタット４４を選定するに
あたってその開閉履歴特性を勘案すれば、各ブロックヒ
ーター２５の加熱温度を任意に設定できることを意味し
ている。When the heater temperature T reaches a certain value Th, the thermostat 44 closes, a current flows through the solenoid of the relay 45, and the relay 45 is turned off.
The current supply to the heating wire 42 is cut off, and the heater temperature T decreases. A certain value TL where the heater temperature T is lower than the value Th
When it is lowered, the thermostat 44 opens and the relay 4
5 is closed, and the heater temperature T rises. Thereafter, the current to the heating wire 42 is interrupted between the temperature Th at which the thermostat 44 opens and the temperature TL at which the thermostat 44 closes, and the block heater 25
Is set substantially in the vicinity of the intermediate temperature Tm between Th and TL. This means that the heating temperature of each block heater 25 can be set arbitrarily if the opening / closing history characteristic is taken into consideration when selecting the thermostat 44 to be arranged for each block heater 25.

【００３１】本実施例では、例えば、成形基材５とし
て、図１に示される如くの、上面中央部分が平坦面とさ
れ、外周部分が曲面とされたもの（例えばキッチン扉）
が使用される場合には、図６に示される如くに、２８基
のブロックヒーター２５のうちの、中央部分に位置する
６基のブロックヒーター２５についてはその加熱温度が
比較的低温Ｌ、例えば５５°Ｃ前後となるようにそれら
に配されるサーモスタット４４が選定され、外周部分に
位置する他のブロックヒーター２５についてはその加熱
温度が比較的高温Ｈ、例えば９０°Ｃ前後となるように
それらに配されるサーモスタット４４が選定される。In the present embodiment, for example, as shown in FIG. 1, the molding base material 5 has a flat upper surface center portion and a curved outer peripheral portion (for example, a kitchen door).
Is used, as shown in FIG. 6, the heating temperature of the six block heaters 25 located at the center of the 28 block heaters 25 is relatively low L, for example, 55. The thermostats 44 disposed on them are selected so as to be around ° C, and the other block heaters 25 located on the outer peripheral portion are heated to a relatively high temperature H, for example, around 90 ° C. The thermostat 44 to be distributed is selected.

【００３２】より精密に加熱温度を制御するには、ブロ
ックヒーター２５の面積を、成形基材５の表面よりも十
分小さな面積の単位に分割し、ブロックヒーターの高温
部分Ｈの温度分布のパターンが十分な精度で、成形基材
５表面の高曲率部のパターンと近似（形状、位置とも）
させるとよい。In order to more precisely control the heating temperature, the area of the block heater 25 is divided into units having an area sufficiently smaller than the surface of the molding base 5 so that the pattern of the temperature distribution of the high-temperature portion H of the block heater is determined. Approximate to the pattern of the high curvature part on the surface of the molding substrate 5 with sufficient accuracy (both in shape and position)
It is good to let.

【００３３】なお、各ブロックヒーター２５毎にそれぞ
れ制御回路を設けてもよいが、上述の例のように加熱温
度が低温Ｌと高温Ｈの２通りでよい場合には、低温グル
ープの各ブロックヒーター２５の制御回路と、高温グル
ープの各ブロックヒーター２５の制御回路を各々共用化
して、制御部品の削減を図ってもよい。次に上述の如く
の構成を有する本実施例の真空プレス積層成形装置の動
作手順の一例について説明する。A control circuit may be provided for each of the block heaters 25. However, in the case where the heating temperature may be low or high L as in the above-described example, each of the block heaters in the low temperature group may be used. The control circuit of 25 and the control circuit of each block heater 25 in the high-temperature group may be commonly used to reduce the number of control components. Next, an example of an operation procedure of the vacuum press laminating and molding apparatus of the present embodiment having the above-described configuration will be described.

【００３４】この例では、まず、基材載置台６上に立体
形状を有する、例えばキッチン扉等に用いられる木質
（ＭＤＦ成形品）の成形基材５が位置決めされて設置さ
れる。この成形基材５の上面，側面及び下面の周縁部に
は、図示は省略されているが、接着剤としてウレタン系
水性エマルジョン（例えば株式会社コニシボンド製のＣ
ＶＣ５５０）が塗布（５〜６ｇ／ｍ2）されている。In this example, first, a wooden (MDF molded) molding base material 5 having a three-dimensional shape, for example, used for a kitchen door or the like, is positioned and placed on a substrate mounting table 6. Although not shown in the figure, the urethane-based aqueous emulsion (for example, C manufactured by Konishi Bond Co., Ltd.)
VC550) is applied (5 to 6 g / m 2 ).

【００３５】次いで、固定クランプ台３１上に、予め所
定寸法に裁断された化粧シートＳの周縁部分が乗せら
れ、化粧シートＳの中央部分が成形基材５上に配され
る。化粧シートＳとしては、ここでは例えば図１１Ａに
示される如くの、着色ＰＶＣ層７４（例えば株式会社理
研ビニル製のＲタイプ）と、その上に印刷された柄層７
２（例えば結合剤が塩化ビニル、酢酸ビニル共重合体、
顔料は弁柄）と、その上に積層されたクリヤーポリ塩化
ビニル（以下、ＰＶＣと略す）層７１と、さらにその上
に積層されたアクリルフィルム層７５と、からなる厚さ
が０．７ｍｍ程度の鏡面性を有した高鮮明シートが使用
されている。Next, the peripheral portion of the decorative sheet S cut in advance to a predetermined size is placed on the fixed clamp table 31, and the central portion of the decorative sheet S is arranged on the forming base material 5. As the decorative sheet S, here, for example, as shown in FIG. 11A, a colored PVC layer 74 (for example, R type manufactured by Riken Vinyl Co., Ltd.) and a pattern layer 7 printed thereon
2 (for example, the binder is vinyl chloride, vinyl acetate copolymer,
The pigment is a red petal), a clear polyvinyl chloride (hereinafter abbreviated as PVC) layer 71 laminated thereon, and an acrylic film layer 75 further laminated thereon have a thickness of about 0.7 mm. A highly sharp sheet having a mirror surface is used.

【００３６】続いて、給排ポート１６を通じてシート側
チャンバ１１に対する真空吸引が行われ、図２に示され
る如くに、ゴム状弾性膜１４が通気口１９を通じてブロ
ックヒーター２５側に吸引されてその熱盤部４７に当接
せしめられる。この過程において、各ブロックヒーター
２５が発熱せしめられ、それらのブロックヒーター２５
によりゴム状弾性膜１４が実質的に空気を介在させるこ
となく直接的に加熱される。Subsequently, vacuum suction is performed on the sheet-side chamber 11 through the supply / discharge port 16, and as shown in FIG. It is brought into contact with the board part 47. In this process, each block heater 25 is caused to generate heat, and the block heaters 25
Thereby, the rubber-like elastic film 14 is directly heated without substantially interposing air.

【００３７】この場合、前述のように、２８基のブロッ
クヒーター２５のうち、外周側に位置する２２基の加熱
温度は比較的高温の９０°Ｃ程度に制御され、中央部の
６基の加熱温度は比較的低温の５５°Ｃ程度に制御され
るので、ゴム状弾性膜１４も２８基のブロックヒーター
２５の温度分布パターンに応じて外周部分が高温に中央
部分が低温に加熱されることになる。In this case, as described above, of the 28 block heaters 25, the heating temperature of 22 located on the outer peripheral side is controlled to a relatively high temperature of about 90 ° C., and the heating of 6 central heaters is performed. Since the temperature is controlled to a relatively low temperature of about 55 ° C., the outer peripheral portion of the rubber-like elastic film 14 is heated to a high temperature and the central portion thereof is heated to a low temperature in accordance with the temperature distribution pattern of the 28 block heaters 25. Become.

【００３８】次に、シート側チャンバ１１を下降させて
型締めを行う。それにより、気密空間形成部材２０によ
り化粧シートＳの周縁部が固定クランプ台３１側に押圧
されて挟持され、ゴム状弾性膜１４と化粧シートＳとの
間に気密空間が形成される。しかる後、給排ポート２４
を通じてその気密空間に対する真空吸引が行われ、図３
に示される如くに、化粧シートＳがその周縁部を挟持さ
れた状態で延伸されてゴム状弾性膜１４に直接的に当接
せしめられ、ブロックヒーター２５の熱がそのゴム状弾
性膜１４を介して化粧シートＳに伝導する。この状態を
約２０秒間継続すると、化粧シートＳが加熱軟化せしめ
られとともに、成形基材５に塗布された接着剤も昇温さ
れる。Next, the sheet side chamber 11 is lowered to perform mold clamping. Accordingly, the peripheral edge of the decorative sheet S is pressed and clamped by the fixed clamp table 31 side by the airtight space forming member 20, and an airtight space is formed between the rubber-like elastic film 14 and the decorative sheet S. After a while, the supply / discharge port 24
The vacuum suction is performed on the hermetic space through FIG.
As shown in FIG. 3, the decorative sheet S is stretched while its peripheral portion is sandwiched, and is brought into direct contact with the rubber-like elastic film 14, and the heat of the block heater 25 is transmitted through the rubber-like elastic film 14. To the decorative sheet S. When this state is continued for about 20 seconds, the decorative sheet S is heated and softened, and the temperature of the adhesive applied to the molding base 5 is increased.

【００３９】その後、給排ポート２６を通じて基材側チ
ャンバ２１に対する真空吸引が行われ、化粧シートＳの
下面と基材側チャンバ２１との間に存在する空気が実質
的に排除される。このときには、シート側チャンバ１１
内及びゴム状弾性膜１４と化粧シートＳとの間の気密空
間に対する真空吸引が継続して行われているので、ゴム
状弾性膜１４及び化粧シートＳは図３に示される状態を
維持する。Thereafter, vacuum suction is performed on the substrate side chamber 21 through the supply / discharge port 26, and the air existing between the lower surface of the decorative sheet S and the substrate side chamber 21 is substantially eliminated. At this time, the seat-side chamber 11
Since vacuum suction is continuously performed in the airtight space inside and between the rubber-like elastic film 14 and the decorative sheet S, the rubber-like elastic film 14 and the decorative sheet S maintain the state shown in FIG.

【００４０】次に、シート側チャンバ１１に対する真空
吸引が解除されて給排ポート１６を通じてシート側チャ
ンバ１１に加圧空気が供給され、シート側チャンバ１１
とゴム状弾性膜１４とで囲まれた空間が約４ｋｇｆ／ｃ
ｍ2 程度に加圧される。それにより、図４に示される如
くに、化粧シートＳがゴム状弾性膜１４と共に成形基材
５の外表面に沿うように延伸変形せしめられてそれに密
着する。この状態を１２０秒程度維持すると、接着剤が
完全に活性化して化粧シートＳが成形基材５に確実に接
着せしめられる。Next, the vacuum suction to the sheet side chamber 11 is released, and pressurized air is supplied to the sheet side chamber 11 through the supply / discharge port 16.
The space surrounded by the rubber-like elastic film 14 is about 4 kgf / c.
It is pressurized to about m 2. Thereby, as shown in FIG. 4, the decorative sheet S is stretched and deformed along the outer surface of the molding base 5 together with the rubber-like elastic film 14 and adheres to it. When this state is maintained for about 120 seconds, the adhesive is completely activated, and the decorative sheet S is securely adhered to the molding base 5.

【００４１】かかる際には、前述のように、ゴム状弾性
膜１４が２８基のブロックヒーター２５の温度分布パタ
ーンに応じて外周部分が高温に中央部分が低温に加熱さ
れているので、化粧シートＳもそのゴム状弾性膜１４の
温度分布パターンに従って外周部分が高温に中央部分が
低温に加熱されている。そのため、化粧シートＳにおけ
る、成形基材５の外周部分に位置する曲面部分に対応す
る部位の加熱温度が、成形基材５の中央部分に位置する
平坦面部分に対応する部位の加熱温度より高い適温に保
持され、その結果、曲面部分に対応する部位では化粧シ
ートＳが充分に軟化してその曲げ追従性が向上し、成形
基材５の曲面部分に適正に密着させることが可能とな
る。また、鏡面性が要求される平坦面部分ではそれに適
した比較的低い加熱温度に保持される結果、平坦面がざ
らついたり凸凹状となったりすることはなく、充分な鏡
面性が確保される。In this case, as described above, the outer peripheral portion is heated to a high temperature and the central portion is heated to a low temperature in accordance with the temperature distribution pattern of the block heater 25 having 28 rubber-like elastic films 14. S also has its outer peripheral portion heated to a high temperature and its central portion heated to a low temperature in accordance with the temperature distribution pattern of the rubber-like elastic film 14. Therefore, in the decorative sheet S, the heating temperature of the portion corresponding to the curved surface portion located at the outer peripheral portion of the molding base 5 is higher than the heating temperature of the portion corresponding to the flat surface portion located at the central portion of the molding substrate 5. The decorative sheet S is kept at an appropriate temperature, and as a result, the decorative sheet S is sufficiently softened at the portion corresponding to the curved surface portion, and its bending followability is improved, so that the decorative sheet S can be properly brought into close contact with the curved surface portion of the molding base material 5. In addition, a flat surface portion requiring mirror surface properties is maintained at a relatively low heating temperature suitable for it, so that the flat surface does not become rough or uneven, and sufficient mirror surface properties are secured.

【００４２】また、ゴム状弾性膜１４を加熱手段１５を
構成するブロックヒーター２５に直接的に押し当てた状
態で加熱し、さらに、化粧シートＳを成形基材５に押し
付けるより以前に、化粧シートＳをゴム状弾性膜１４に
直接的に当接させた状態で加熱するようにされてそれら
の間に空気を実質的に介在させないようにされるので、
ゴム状弾性膜１４の温度、ひいては化粧シートＳの各部
の温度を高精度に制御することが可能となり、温度分布
の不所望なばらつきや経時変動等が発生し難くなる。Further, the rubber-like elastic film 14 is heated in a state of being directly pressed against the block heater 25 constituting the heating means 15, and before the decorative sheet S is pressed against the molding base 5, Since S is heated in a state where S is directly in contact with the rubber-like elastic film 14, air is not substantially interposed between them.
The temperature of the rubber-like elastic film 14 and thus the temperature of each part of the decorative sheet S can be controlled with high accuracy, and undesired variations in the temperature distribution and aging fluctuations are less likely to occur.

【００４３】さらに、成形基材５と化粧シートＳとの間
及び化粧シートＳとゴム状弾性膜１４との間は吸引脱気
されているので、成形基材５と化粧シートＳとの間に残
留する空気に起因して発生する、外表面のふくれ，しわ
等が著しく低減される。それに加えて、成形時に化粧シ
ートＳの周縁部を押圧保持するようにされるので、化粧
シートＳの位置がずれたりすることが回避され、また、
化粧シートＳに巻き癖等が残っていても成形時に化粧シ
ートＳが伸ばされるので、それが効果的に矯正され、し
かも、比較的薄手の化粧シートでも波打ち状態になるこ
とはなく、成形不良、シワ、膨れ等が可及的に低減され
ることにもなる。Further, since the space between the molding base 5 and the decorative sheet S and the space between the decorative sheet S and the rubber-like elastic film 14 are suctioned and deaerated, the space between the molding base 5 and the decorative sheet S is removed. The blisters and wrinkles on the outer surface caused by the remaining air are significantly reduced. In addition, since the periphery of the decorative sheet S is pressed and held at the time of molding, the position of the decorative sheet S is prevented from being shifted, and
Even if a curl or the like remains on the decorative sheet S, the decorative sheet S is stretched at the time of molding, so that it is effectively corrected. Moreover, even a relatively thin decorative sheet does not become wavy, resulting in poor molding, Wrinkles, swelling and the like are reduced as much as possible.

【００４４】そして、上記のようにして化粧シートＳが
成形基材５に接着された後、シート側チャンバ１１，基
材側チャンバ２１内が大気開放状態に戻され、シート側
チャンバ１１が上昇せしめられて、化粧シートＳに対す
るゴム状弾性膜１４の押圧及び加熱が解除され、また、
化粧シートＳの固持状態も解かれて、化粧シートＳが接
着された成形基材５が取り出され、必要に応じて成形基
材５に接着されていない化粧シートの周縁部分等を切除
する仕上げ加工が行われる。After the decorative sheet S is adhered to the molding substrate 5 as described above, the interiors of the sheet-side chamber 11 and the substrate-side chamber 21 are returned to the atmosphere, and the sheet-side chamber 11 is raised. Then, the pressing and heating of the rubber-like elastic film 14 against the decorative sheet S are released, and
The fixed state of the decorative sheet S is also released, the forming base 5 to which the decorative sheet S is adhered is taken out, and the finishing processing for cutting off the peripheral portion of the decorative sheet which is not bonded to the forming base 5 as necessary. Is performed.

【００４５】上記のようにされることにより、接着不
良，柄伸び等の成形不良の発生が効果的に回避され、高
品質の成形品を安定して得ることができる。なお、成形
に供される成形基材，化粧シート，接着剤等は上述の例
のものに限られることはなく、種々多様なものを使用で
きること勿論である。例えば、成形基材としてのＡＬ製
のドアに例えば図１１Ｂに示される如くの、着色ＰＶＣ
層７４，柄層７２及びクリヤーＰＶＣ層７１からなる厚
さ０．２ｍｍ程度のＰＶＣダブリングシートにウレタン
系ホットメルト接着剤７３を塗布したものを接着する、
あるいは、成形基材としての木質テーブル天板に、例え
ば図１１Ｃに示される如くの、ポリアミド系のＨＳ層７
８，柄層７２，クリヤーＰＶＣの離型性基材シート層７
７からなる転写シートを接着する、等々にも適用でき
る。By performing the above, occurrence of molding defects such as poor adhesion and pattern elongation can be effectively avoided, and a high quality molded product can be stably obtained. The forming base material, decorative sheet, adhesive and the like to be used for forming are not limited to those of the above-described example, but various kinds of things can be used. For example, a colored PVC as shown in FIG.
A urethane-based hot melt adhesive 73 is applied to a PVC doubling sheet having a thickness of about 0.2 mm, comprising a layer 74, a pattern layer 72, and a clear PVC layer 71.
Alternatively, a polyamide-based HS layer 7, for example, as shown in FIG.
8, pattern layer 72, release layer sheet layer 7 of clear PVC
For example, a transfer sheet made of No. 7 is bonded.

【００４６】それらの成形においても、成形基材の形状
等に応じて、成形時に化粧シートＳの曲げ量もしくは伸
び量が比較的大なる部位を加熱するためのブロックヒー
ター２５温度を、上記曲げ量もしくは伸び量が比較的小
なる部位を加熱するためのブロックヒーター２５の温度
より高く設定することにより、上述の例と略同様な作用
効果が得られる。Also in these moldings, the temperature of the block heater 25 for heating a portion where the amount of bending or elongation of the decorative sheet S is relatively large at the time of molding is set in accordance with the shape of the forming base material or the like. Alternatively, by setting the temperature to be higher than the temperature of the block heater 25 for heating a portion having a relatively small amount of elongation, substantially the same operation and effect as in the above-described example can be obtained.

【００４７】また、上述の例では、加熱手段１５を構成
する各ブロックヒーター２５の加熱温度を、サーモスタ
ットを用いたｏｎ−ｏｆｆ制御により行うようにされて
いるが、それに代えて、例えば図９に示される如くの、
位相制御式温度調節回路を用いて行うようにすることも
できる。図９に示される位相制御式温度調節回路は、そ
れ自体はよく知られているもので、主回路にメインスイ
ッチ４６、ブロックヒーター２５の電熱線４２、トライ
アック６５、及びサージアブソーバを形成する抵抗６
６，コンデンサ６７が備えられ、トリガー回路にＵＪＴ
６０，温度検出器としてブロックヒーター２５に組み込
まれたサーミスタ５６，温度調節用の可変抵抗５４，利
得調整用の抵抗５５，エミッタ・コンデンサ５７，４つ
のダイオードからなる整流回路５１，ツェナーダイオー
ド５２，トランス６２等が備えられている。In the above example, the heating temperature of each block heater 25 constituting the heating means 15 is controlled by on-off control using a thermostat. Instead, for example, FIG. As shown,
It is also possible to use a phase control type temperature control circuit. The phase control type temperature control circuit shown in FIG. 9 is well known per se, and includes a main switch 46, a heating wire 42 of a block heater 25, a triac 65, and a resistor 6 forming a surge absorber in a main circuit.
6, the capacitor 67 is provided, and the UJT
60, a thermistor 56 incorporated in the block heater 25 as a temperature detector, a variable resistor 54 for temperature adjustment, a resistor 55 for gain adjustment, an emitter capacitor 57, a rectifier circuit 51 composed of four diodes, a Zener diode 52, a transformer 62 and the like are provided.

【００４８】この回路では、メインスイッチ４６をｏｎ
にすると、整流回路５１から得られる全波整流電圧をツ
ェナーダイオード５２で所定電圧にクランプした台形波
電圧がＵＪＴ６０に駆動電圧として与えられる。エミッ
タ・コンデンサ５７は各半サイクルの始めに急速に抵抗
５４とサーミスタ５６の抵抗値との分圧比に応じて定ま
るペデスタル電圧（台形状の電圧）に充電され、同時に
抵抗５４，サーミスタ５６の抵抗値とコンデンサ５７の
充電量に基づく充電波形（ランプ）がペデスタル・レベ
ルに重畳され、ＵＪＴ６０のトリガレベルに達するとコ
ンデンサ５７が放電しパルスがトライアック６５のゲー
トに与えられる。In this circuit, the main switch 46 is turned on.
Then, a trapezoidal wave voltage obtained by clamping the full-wave rectified voltage obtained from the rectifier circuit 51 to a predetermined voltage by the Zener diode 52 is supplied to the UJT 60 as a drive voltage. At the beginning of each half cycle, the emitter capacitor 57 is rapidly charged to a pedestal voltage (trapezoidal voltage) determined according to the voltage dividing ratio between the resistance 54 and the resistance of the thermistor 56, and at the same time, the resistances of the resistance 54 and the thermistor 56 are changed. And a charging waveform (ramp) based on the charged amount of the capacitor 57 is superimposed on the pedestal level. When the trigger level of the UJT 60 is reached, the capacitor 57 is discharged and a pulse is given to the gate of the triac 65.

【００４９】このとき、トライアック６５は、例えば、
図１０において実線で示される如くに、導通角αｂでト
リガし、ブロックヒーター２５の電熱線４２に電力を供
給する。それにより、ヒーター温度が上昇する。それに
対し、ヒーター温度が下降すると、サーミスタ５６がそ
れを検知してその抵抗値を増大させる。それにより、ペ
デスタルレベルが上がってＵＪＴ６０のトリガレベルと
の電圧差が小さくなり、そのサイクル内において速やか
にコンデンサ５７の両端電圧がトリガレベルに達し、ト
ライアック６５の導通角を広げる（αＣ方向）にトリガ
パルスが移行してより大きな電力が電熱線４２に供給さ
れる。そして、再びヒーター温度が上昇すると、上述と
は逆に、サーミスタ５６がそれを検知してその抵抗値を
減少させる。それにより、ペデスタルレベルが下がって
ＵＪＴ６０のトリガレベルとの電圧差が大きくなり、ト
ライアック６５の導通角を狭める（αａ方向）にトリガ
パルスが移行して電力供給量が減少せしめられる。At this time, the triac 65
As shown by a solid line in FIG. 10, a trigger is generated at the conduction angle αb, and power is supplied to the heating wire 42 of the block heater 25. Thereby, the heater temperature rises. On the other hand, when the heater temperature decreases, the thermistor 56 detects this and increases the resistance value. As a result, the pedestal level rises and the voltage difference from the trigger level of UJT 60 decreases, and the voltage across capacitor 57 quickly reaches the trigger level in that cycle, triggering to increase the conduction angle of triac 65 (αC direction). The pulse shifts and more power is supplied to the heating wire 42. Then, when the heater temperature rises again, contrary to the above, the thermistor 56 detects this and reduces the resistance value. As a result, the pedestal level decreases and the voltage difference from the trigger level of the UJT 60 increases, and the trigger pulse shifts to reduce the conduction angle of the triac 65 (αa direction), thereby reducing the power supply amount.

【００５０】従って、このような回路を用いると、ヒー
ター温度を所望の値に自動的に調節することができ、前
述したサーモスタットを用いた制御回路に比して温度制
御の精度を高くすることが可能となる。なお、ヒーター
温度の制御には、上記の他、ゼロ電圧スイッチ回路やマ
イクロコンピューターを用いた制御回路等の種々の制御
手段を利用できること勿論である。Therefore, when such a circuit is used, the heater temperature can be automatically adjusted to a desired value, and the accuracy of the temperature control can be improved as compared with the above-described control circuit using a thermostat. It becomes possible. In addition, various control means such as a zero voltage switch circuit and a control circuit using a microcomputer can be used for controlling the heater temperature.

【００５１】[0051]

【発明の効果】以上の説明から理解されるごとく、本発
明による真空プレス積層成形装置及び方法によれば、化
粧シートの加熱温度を成形基材の各部の形状等に適した
温度に高精度に制御できるので、化粧シートにおける平
坦面部分の鏡面性を確保しつつ曲面部分等の曲げ追従性
を向上させ得、その結果、成形不良のない高品質の成形
品を安定して得ることができる。As can be understood from the above description, according to the vacuum press laminating apparatus and method according to the present invention, the heating temperature of the decorative sheet can be precisely adjusted to a temperature suitable for the shape of each part of the forming base material. Since control can be performed, it is possible to improve the bending followability of a curved surface portion and the like while securing the mirror surface property of the flat surface portion of the decorative sheet, and as a result, it is possible to stably obtain a high-quality molded product free from molding defects.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明に係る真空プレス積層成形装置の一例の
主要部並びに本発明の実施例の手順の説明に供される概
略構成図。FIG. 1 is a schematic configuration diagram for explaining a main part of an example of a vacuum press lamination molding apparatus according to the present invention and a procedure of an embodiment of the present invention.

【図２】実施例の手順の説明に供される図。FIG. 2 is a diagram which is used for describing the procedure of the embodiment.

【図３】実施例の手順の説明に供される図。FIG. 3 is a diagram which is used for describing a procedure of the embodiment.

【図４】実施例の手順の説明に供される図。FIG. 4 is a diagram which is used for describing a procedure of the embodiment.

【図５】実施例の加熱手段の説明に供される図。FIG. 5 is a diagram provided for describing a heating unit of the embodiment.

【図６】実施例の加熱手段の温度分布パターンの説明に
供される図。FIG. 6 is a diagram provided for describing a temperature distribution pattern of a heating unit according to the embodiment.

【図７】実施例のヒータ温度制御手段の説明に供される
図。FIG. 7 is a diagram provided for describing a heater temperature control unit according to the embodiment;

【図８】実施例のヒータ温度制御手段の動作説明に供さ
れる図。FIG. 8 is a diagram for explaining the operation of the heater temperature control means of the embodiment.

【図９】実施例のヒータ温度制御手段の他の例の説明に
供される図。FIG. 9 is a diagram provided for explaining another example of the heater temperature control means of the embodiment.

【図１０】実施例のヒータ温度制御手段の他の例の動作
説明に供される図。FIG. 10 is a diagram which is used for describing the operation of another example of the heater temperature control means of the embodiment.

【図１１】実施例に使用される化粧シートの例を示す
図。FIG. 11 is a diagram showing an example of a decorative sheet used in an example.

【図１２】従来の真空プレス積層成形装置の説明に供さ
れる図。FIG. 12 is a diagram provided for explanation of a conventional vacuum press lamination molding apparatus.

【符号の説明】[Explanation of symbols]

１ 真空プレス積層成形装置 ５ 成形基材 ６ 基材載置台 １１ シート側チャンバ １２ シリンダ装置 １４ ゴム状弾性膜 １５ 加熱手段 １６，２４，２６ 給排ポート １９ 通気孔 ２０ 気密空間形成部材 ２１ 基材側チャンバ ２２ 吸引置台 ２３ 透孔 ２５ ブロックヒーター ３１ 固定クランプ台 ４０ セラミック材 ４１ 電源 ４２ 電熱線 ４４ サーモスタット ４５ リレー ４６ スイッチ ５６ サーミスタ ６０ ＵＪＴ ６５ トライアック Ｓ 化粧シート DESCRIPTION OF SYMBOLS 1 Vacuum press lamination | molding apparatus 5 Forming base material 6 Substrate mounting table 11 Sheet side chamber 12 Cylinder device 14 Rubber-like elastic film 15 Heating means 16,24,26 Supply / discharge port 19 Vent hole 20 Airtight space forming member 21 Substrate side Chamber 22 Suction table 23 Through hole 25 Block heater 31 Fixed clamp table 40 Ceramic material 41 Power supply 42 Heating wire 44 Thermostat 45 Relay 46 Switch 56 Thermistor 60 UJT 65 Triac S Makeup sheet

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 51/00 - 51/46 B29C 63/00 - 63/48 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B29C 51/00-51/46 B29C 63/00-63/48

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 基材側チャンバに設けられた吸引置台上
に成形基材が配置され、その成形基材上に化粧シートが
セットされるとともに、シート側チャンバに設けられた
ゴム状弾性膜が上記化粧シートに対向配置され、上記シ
ート側チャンバ内に設けられた加熱手段により上記ゴム
状弾性膜を加熱するとともに、上記シート側チャンバと
基材側チャンバとの間に圧力差を生じさせ、もって上記
化粧シートを上記ゴム状弾性膜によって軟化させるとと
もに上記成形基材の外表面に押し付けて接着するように
された真空プレス積層成形装置において、 上記加熱手段が少なくとも２つのブロックに区分されて
いて、そのブロック毎に個別に加熱温度を制御できるよ
うに構成されていることを特徴とする真空プレス積層成
形装置。1. A molding base is arranged on a suction table provided in a substrate-side chamber, a decorative sheet is set on the molding base, and a rubber-like elastic film provided in a sheet-side chamber is provided. The rubber-like elastic film is heated by heating means provided in the sheet-side chamber, which is disposed to face the decorative sheet, and a pressure difference is generated between the sheet-side chamber and the substrate-side chamber. In a vacuum press laminating and molding apparatus in which the decorative sheet is softened by the rubber-like elastic film and pressed and adhered to the outer surface of the molding substrate, the heating means is divided into at least two blocks, A vacuum press laminating apparatus characterized in that the heating temperature can be controlled individually for each block. 【請求項２】 請求項１記載の真空プレス積層成形装置
を用いて化粧シートを成形基材に接着するに際し、ゴム
状弾性膜を介して化粧シートを加熱する加熱手段の各ブ
ロックのうちの、成形時において化粧シートの曲げ量も
しくは伸び量が比較的大なる部位を加熱するためのブロ
ックの温度を、上記曲げ量もしくは伸び量が比較的小な
る部位を加熱するためのブロックの温度より高く設定す
ることを特徴とする真空プレス積層成形方法。2. A heating means for heating a decorative sheet via a rubber-like elastic film when bonding a decorative sheet to a forming substrate using the vacuum press laminating and forming apparatus according to claim 1. During molding, the temperature of the block for heating the part where the amount of bending or elongation of the decorative sheet is relatively large is set higher than the temperature of the block for heating the part where the amount of bending or elongation is relatively small. And a vacuum press lamination molding method. 【請求項３】 ゴム状弾性膜を加熱手段に直接的に当接
させた状態で加熱することを特徴とする請求項２記載の
真空プレス積層成形方法。3. The vacuum press laminating method according to claim 2, wherein the rubber-like elastic film is heated in a state of being directly in contact with the heating means. 【請求項４】 化粧シートを成形基材に押し付けるより
以前に、ゴム状弾性膜を加熱手段に直接的に当接させ、
かつ、化粧シートを上記ゴム状弾性膜に直接的に当接さ
せた状態で加熱することを特徴とする請求項２記載の真
空プレス積層成形方法。4. The rubber-like elastic film is brought into direct contact with the heating means before pressing the decorative sheet against the molding base,
The vacuum press laminating method according to claim 2, wherein the decorative sheet is heated in a state of being directly in contact with the rubber-like elastic film.
JP10000392A 1992-04-20 1992-04-20 Vacuum press laminating apparatus and method Expired - Lifetime JP3217117B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10000392A JP3217117B2 (en) 1992-04-20 1992-04-20 Vacuum press laminating apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10000392A JP3217117B2 (en) 1992-04-20 1992-04-20 Vacuum press laminating apparatus and method

Publications (2)

Publication Number Publication Date
JPH05293895A JPH05293895A (en) 1993-11-09
JP3217117B2 true JP3217117B2 (en) 2001-10-09

Family

ID=14262408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10000392A Expired - Lifetime JP3217117B2 (en) 1992-04-20 1992-04-20 Vacuum press laminating apparatus and method

Country Status (1)

Country Link
JP (1) JP3217117B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9199413B2 (en) 2010-11-05 2015-12-01 Fujigen Inc. Method for producing ornament

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19812402A1 (en) * 1998-03-20 1999-09-23 Cww Gerko Akustik Gmbh & Co Kg Foil applicator especially for applying acoustic insulation foil to underside of vehicle roof
GB2363755A (en) * 2000-06-21 2002-01-09 Magna Interior Sys Ltd Attaching a covering to a substrate
FR2815286B1 (en) * 2000-10-16 2003-06-20 Cera DEVICE FOR FIXING A COATING ON A PLASTIC SUPPORT
EP1658905A1 (en) * 2004-11-22 2006-05-24 DeMaxZ AG Method and apparatus for applying a decoration onto an object
US8137498B2 (en) 2005-08-30 2012-03-20 Rockwell Collins Inc. System and method for completing lamination of rigid-to-rigid substrates by the controlled application of pressure
US8118075B2 (en) 2008-01-18 2012-02-21 Rockwell Collins, Inc. System and method for disassembling laminated substrates
US7814676B2 (en) 2008-01-18 2010-10-19 Rockwell Collins, Inc. Alignment system and method thereof
US8603288B2 (en) 2008-01-18 2013-12-10 Rockwell Collins, Inc. Planarization treatment of pressure sensitive adhesive for rigid-to-rigid substrate lamination
US8936057B2 (en) 2005-08-30 2015-01-20 Rockwell Collins, Inc. Substrate lamination system and method
US8691043B2 (en) 2005-08-30 2014-04-08 Rockwell Collins, Inc. Substrate lamination system and method
JP2008307724A (en) * 2007-06-13 2008-12-25 Nisshinbo Ind Inc Laminator
US9939526B2 (en) 2007-09-06 2018-04-10 Rockwell Collins, Inc. Display system and method using weather radar sensing
US9733349B1 (en) 2007-09-06 2017-08-15 Rockwell Collins, Inc. System for and method of radar data processing for low visibility landing applications
EP2243054A4 (en) 2008-01-18 2013-09-25 Rockwell Collins Inc Substrate lamination system and method
JP5118082B2 (en) * 2009-02-18 2013-01-16 株式会社エヌ・ピー・シー Laminating equipment
KR20110065896A (en) * 2009-12-10 2011-06-16 삼성전기주식회사 Lamination method and lamination device
KR101010918B1 (en) * 2010-01-14 2011-01-25 주식회사 세지솔로텍 Film vacuum forming apparatus for 3 dimension shape and vacuum forming method using the same
US8411235B1 (en) 2010-03-16 2013-04-02 Rockwell Collins, Inc. Displays for three-dimensional imaging
US20130008591A1 (en) * 2010-03-18 2013-01-10 Kanemitsu Kondo Resin film coating method and coating device
US8419496B1 (en) 2010-03-18 2013-04-16 Rockwell Collins, Inc. Display panel alignment system
US8486535B1 (en) 2010-05-24 2013-07-16 Rockwell Collins, Inc. Systems and methods for adherable and removable thin flexible glass
US8576370B1 (en) 2010-06-30 2013-11-05 Rockwell Collins, Inc. Systems and methods for nonplanar laminated assemblies
KR101242724B1 (en) * 2010-12-08 2013-03-12 (주)하드램 Vacuum lamination apparatus and method for laminating a film utilizing the same
US8643260B1 (en) 2011-09-02 2014-02-04 Rockwell Collins, Inc. Systems and methods for display assemblies having printed masking
US8647727B1 (en) 2012-06-29 2014-02-11 Rockwell Colllins, Inc. Optical assembly with adhesive layers configured for diffusion
CN103523307A (en) * 2012-07-06 2014-01-22 张庆州 Method for attaching plastic film to surface of article
US9262932B1 (en) 2013-04-05 2016-02-16 Rockwell Collins, Inc. Extended runway centerline systems and methods
US9981460B1 (en) 2014-05-06 2018-05-29 Rockwell Collins, Inc. Systems and methods for substrate lamination
US10928510B1 (en) 2014-09-10 2021-02-23 Rockwell Collins, Inc. System for and method of image processing for low visibility landing applications
EP3299145B1 (en) * 2015-05-19 2021-12-08 Fu-se Vacuum Forming Co., Ltd. Surface protection method and surface decoration method for body to be coated
US10705201B1 (en) 2015-08-31 2020-07-07 Rockwell Collins, Inc. Radar beam sharpening system and method
US10228460B1 (en) 2016-05-26 2019-03-12 Rockwell Collins, Inc. Weather radar enabled low visibility operation system and method
JP7121285B2 (en) * 2016-06-13 2022-08-18 テイ・エス テック株式会社 Decorative panel manufacturing method
US10353068B1 (en) 2016-07-28 2019-07-16 Rockwell Collins, Inc. Weather radar enabled offshore operation system and method
DE102018003359A1 (en) * 2018-04-25 2019-10-31 Bosch Sprang Bv METHOD, DEVICE AND TOOL TOOL FOR THERMOFORMS OF A FLAT FILM AND AN EQUIPMENT FOR PRODUCING SEMI-FINISHED PRODUCTS AND PRODUCTS
JP7063725B2 (en) * 2018-05-25 2022-05-09 バンドー化学株式会社 Manufacturing method of decorative molded products
KR102127736B1 (en) * 2018-10-30 2020-07-01 재단법인 한국탄소융합기술원 Apparatus and method for manufacturing thermoplastic reinforced panel of aircraft
KR102190258B1 (en) * 2019-01-30 2020-12-14 고명애 Method for manufacturing teaching aids
JP6995815B2 (en) * 2019-10-11 2022-01-17 ニッコー・マテリアルズ株式会社 Laminating device and laminating method using it
KR102339428B1 (en) * 2019-12-26 2021-12-14 이의영 Forming apparatus
KR102292292B1 (en) * 2020-02-04 2021-08-23 최석영 Material forming apparatus and material forming method
KR102319135B1 (en) * 2020-04-06 2021-10-29 리얼룩앤컴퍼니 주식회사 3d foaming film manufacturing device with temperature control
US11485124B1 (en) 2021-07-29 2022-11-01 Nikko-Materials Co., Ltd. Laminating apparatus and laminating method using same
WO2023078921A1 (en) * 2021-11-05 2023-05-11 Gea Food Solutions Germany Gmbh Heating element made of a ceramic material
JP7345945B1 (en) * 2023-03-28 2023-09-19 株式会社浅野研究所 thermoforming equipment
JP7345946B1 (en) * 2023-03-28 2023-09-19 株式会社浅野研究所 thermoforming equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9199413B2 (en) 2010-11-05 2015-12-01 Fujigen Inc. Method for producing ornament

Also Published As

Publication number Publication date
JPH05293895A (en) 1993-11-09

Similar Documents

Publication Publication Date Title
JP3217117B2 (en) Vacuum press laminating apparatus and method
US5743979A (en) Method of forming fabric
JPH0811200A (en) Vacuum press laminate molding method and apparatus
JP3394058B2 (en) Decorative sheet laminating equipment
JP3244527B2 (en) Vacuum press lamination molding equipment
JP3253654B2 (en) Vacuum press lamination molding method
JPH0557786A (en) Vacuum press laminate molding method
US5362349A (en) Plastic heat set molding
WO1994005483A1 (en) Method and machine for laminating a decorative layer to the surface of a three-dimensional object
US3267633A (en) Package and method for manufacturing such package
JPH0214111A (en) Shaping film
JP2000085088A (en) Apparatus and method for producing decorative sheet laminated plate material
US3380583A (en) Package
JP2881813B2 (en) Painting equipment for molded products
JPH0618722B2 (en) Method for manufacturing laminated interior material
JPH0642269A (en) Decorated door with rails and stiles and its manufacture
JPH07100398B2 (en) Transfer film
JPH082589B2 (en) Manufacturing method of automobile door trim
JP3731967B2 (en) Method for manufacturing thin film insert molded product
JPH0332469B2 (en)
EP0328698A2 (en) Thermoplastic vacuum molding method and article produced thereby
JPH04314524A (en) Laminating device
US5635003A (en) Cold sealing process for soft trim products
JP3102917B2 (en) Vacuum lamination molding method and apparatus
JPH04368837A (en) Vacuum laminate forming device

Legal Events

Date Code Title Description
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080803

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090803

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090803

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100803

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110803

Year of fee payment: 10

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110803

Year of fee payment: 10

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120803

Year of fee payment: 11

EXPY Cancellation because of completion of term
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120803

Year of fee payment: 11