JPH045523B2 - - Google Patents
Info
- Publication number
- JPH045523B2 JPH045523B2 JP61024745A JP2474586A JPH045523B2 JP H045523 B2 JPH045523 B2 JP H045523B2 JP 61024745 A JP61024745 A JP 61024745A JP 2474586 A JP2474586 A JP 2474586A JP H045523 B2 JPH045523 B2 JP H045523B2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- skin
- skin layer
- molding
- molding surface
- 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
- 239000000463 material Substances 0.000 claims description 88
- 238000000465 moulding Methods 0.000 claims description 40
- 230000001681 protective effect Effects 0.000 claims description 23
- 239000002131 composite material Substances 0.000 claims description 21
- 239000004744 fabric Substances 0.000 claims description 13
- 238000000748 compression moulding Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 6
- 239000002759 woven fabric Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 4
- 210000003491 skin Anatomy 0.000 description 51
- 230000000694 effects Effects 0.000 description 5
- 210000002615 epidermis Anatomy 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 238000007666 vacuum forming Methods 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は表皮層材料と基材材料とを圧縮成形
して表皮層付複合成形体を得る製造方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing a composite molded article with a skin layer by compression molding a skin layer material and a base material.
［従来の技術］
一対の上下の型の下型の成形面に、正確に計量
された溶融状態にある基材材料を載置したのち、
上下の型を型締めして一体化された圧縮成形体を
得る方法は知られている。[Prior Art] After placing an accurately measured amount of molten base material on the molding surface of the lower mold of a pair of upper and lower molds,
A method for obtaining an integrated compression molded body by clamping upper and lower molds is known.
［発明が解決しようとする課題］
しかしながら、従来の圧縮成形体にあつては、
成形サイクルを短縮するために型の温度が比較的
低温に保たれていて、基材材料を成形面に載置し
たときのチヤージマークや、成形時の基材材料の
流動によるフローマークが成形品の表面に残り外
観を著しく劣化させていた。[Problems to be solved by the invention] However, in the case of conventional compression molded bodies,
The temperature of the mold is kept relatively low to shorten the molding cycle, and charge marks when the base material is placed on the molding surface and flow marks due to the flow of the base material during molding may occur on the molded product. It remained on the surface and significantly deteriorated the appearance.
このため、圧縮成形時に上型の成形面に表皮を
位置させた状態で上記と同様の方法で圧縮成形し
て複合成形体を得る方法を試みたが、表皮が破れ
やすい織布や不織布などの場合は圧縮成形時にお
ける基材材料の流動により布が裂断して、裂目か
ら基材材料が成形品の表面に現出したり、伸びの
ある編布の場合は、基材材料の流動により部分的
に引き伸ばされて、編目から基材材料が溢出した
り、編布にしわを発生させて成形品の外観を劣化
させることがあつた。 For this reason, we attempted to obtain a composite molded product by compression molding in the same manner as above with the skin positioned on the molding surface of the upper mold during compression molding, but this method was used for fabrics such as woven fabrics and non-woven fabrics where the skin easily tears. In this case, the fabric may tear due to the flow of the base material during compression molding, and the base material may appear on the surface of the molded product from the tear, or in the case of a stretchy knitted fabric, due to the flow of the base material. Partial stretching caused the base material to overflow from the stitches and caused wrinkles in the knitted fabric, deteriorating the appearance of the molded product.
［課題を解決するための手段］
この発明は、上記課題を解決するため、織布、
不織布、編布または立毛繊維製品より成る表皮の
裏面に保護フイルムが貼着されている表皮層材料
を、その表皮側が上型の成形面に対向するように
上下の型の中間に位置させるか、またはその表皮
側が上型の成形面に接するように上型で真空成形
するとともに、そのまま引き続き吸引保持し、計
量された溶融状態にある基材材料を、下型の成形
面の所定位置に機械的に分配載置したのち、上下
の型を型締めして圧縮成形することを特徴とす
る、表皮層付複合成形体の製造方法を提案する。[Means for Solving the Problems] In order to solve the above problems, the present invention provides woven fabrics,
A skin layer material made of nonwoven fabric, knitted fabric, or napped fiber product with a protective film attached to the back side of the skin is placed between the upper and lower molds so that the skin side faces the molding surface of the upper mold, or Alternatively, vacuum forming is performed in the upper mold so that the skin side is in contact with the molding surface of the upper mold, and the base material in a molten state is mechanically moved to a predetermined position on the molding surface of the lower mold by continuing to hold it under suction. We propose a method for manufacturing a composite molded article with a skin layer, which is characterized in that the composite molded article with a skin layer is placed on the surface of the composite body, and then the upper and lower molds are clamped and compression molded.
［作用］
表皮層材料の基材材料との接合面に貼着されて
いる保護フイルムは、表皮が破れやすい織布や不
織布の場合は、圧縮成形時における基材材料の流
動に対してその耐熱性、平滑性および剪断抵抗性
によつて表皮の裂断を保護し、かつ表皮層と基材
との接着を強固なものとする。[Function] In the case of woven or non-woven fabrics where the skin layer material is easily torn, the protective film attached to the joint surface of the skin layer material with the base material must be heat resistant against the flow of the base material during compression molding. It protects the epidermis from tearing due to its softness, smoothness, and shear resistance, and strengthens the adhesion between the epidermis layer and the base material.
また表皮が伸びのある編布の場合は、基材材料
の流動に対して、保護フイルムは編布の伸びを抑
制して編目に基材材料が入り込んだり、編布にし
わを発圧させることを防止するとともに表皮層と
基材との接着を強固にする。 In addition, in the case of a knitted fabric with stretchable skin, the protective film suppresses the elongation of the knitted fabric against the flow of the base material, preventing the base material from entering the stitches or causing wrinkles to form in the knitted fabric. In addition to preventing this, it also strengthens the adhesion between the skin layer and the base material.
［実施例］
この発明の実施例を図面を参照しながら説明す
る。[Example] An example of the present invention will be described with reference to the drawings.
第１図は例えば乗用車のフロントシートバツク
パネルをこの発明の複合成形体の製造方法により
製造するときの圧縮成形装置の要部断面図であ
る。一対の上下の型の上型１と下型２との中間に
表皮層材料４を、後述するその表皮の側が上型１
の成形面に対向するように位置させ、下型２の成
形面部分に溶融状態にある基材材料３を載置し、
図示していない加圧装置により上下の型１，２を
型締めする圧縮成形法により、表皮層と基材が一
体となつた複合成形体を製造する。 FIG. 1 is a sectional view of a main part of a compression molding apparatus for manufacturing, for example, a front seat back panel of a passenger car by the method of manufacturing a composite molded article of the present invention. A skin layer material 4 is placed between the upper mold 1 and the lower mold 2 of a pair of upper and lower molds, and the skin layer material 4 is placed on the upper mold 1 on the side of the skin, which will be described later.
The base material 3 in a molten state is placed on the molding surface of the lower mold 2 so as to face the molding surface of the lower mold 2,
A composite molded article in which the skin layer and the base material are integrated is manufactured by a compression molding method in which the upper and lower molds 1 and 2 are clamped using a pressure device (not shown).
基材材料３は、ポリエチレン、ポリプロピレ
ン、ABS樹脂、ポリアセタール、ポリカーボネ
ートなどの熱可塑性樹脂の単独またはブレンド材
料が使用される。それらの材料に、炭酸カルシウ
ム、ガラス繊維などの無機質の充填剤や補強材お
よび木粉、繊維質材料などの有機質の充填剤や補
強材を含有させることも可能である。さらに完全
架橋前で加熱流動性のある熱硬化性の樹脂もしく
は各種ゴムも使用することができる。 As the base material 3, thermoplastic resins such as polyethylene, polypropylene, ABS resin, polyacetal, and polycarbonate are used alone or in a blend. These materials can also contain inorganic fillers and reinforcing materials such as calcium carbonate and glass fibers, and organic fillers and reinforcing materials such as wood flour and fibrous materials. Furthermore, thermosetting resins or various rubbers that are heat-flowable before being completely crosslinked can also be used.
このような基材材料３は第２図に示したように
押出成形機１１での加熱、混練、溶融工程を経
て、計量シリンダ１２内に一旦貯められ、縦・横
方向自在に曲るジヨイントアーム１３を介し、パ
ルスモータ１４にてダイ１５を縦横方向に動か
し、規定量の１重量％以下の高い精度をもつて適
正パターンでかつ適正重量分布でチヤージするこ
とのできる分配装置により、下型２の成形面上に
分配載置後油圧プレス１６を作動させ、表皮層材
料４とともに上型１と下型２を型締めして複合成
形体が製造される。たとえば池貝鉄工株式会社製
ISM−800型のスタンピングモールデイング装置
を用いることにより、上述の高い精度を得ること
ができる。 As shown in FIG. 2, the base material 3 is heated, kneaded, and melted in an extrusion molding machine 11, and then stored in a measuring cylinder 12, forming a joint that can be bent freely in the vertical and horizontal directions. A distributing device that moves the die 15 vertically and horizontally with a pulse motor 14 via the arm 13 and charges the lower die in an appropriate pattern and with an appropriate weight distribution with high accuracy of 1% by weight or less of the specified amount. After being distributed and placed on the molding surface of 2, the hydraulic press 16 is operated, and the upper mold 1 and the lower mold 2 are clamped together with the skin layer material 4 to produce a composite molded product. For example, manufactured by Ikegai Iron Works Co., Ltd.
By using the ISM-800 type stamping molding machine, the above-mentioned high precision can be obtained.
表皮層材料４は、第３図のように表皮４１と保
護フイルム４３とから構成されていて、各構成シ
ートは接着剤または熱融着により積層一体化され
ている。このように表皮層材料４は、その表皮４
１の裏面に保護フイルム４３が貼着されている。 The skin layer material 4 is composed of a skin 41 and a protective film 43, as shown in FIG. 3, and each component sheet is laminated and integrated by adhesive or heat fusion. In this way, the skin layer material 4 is
A protective film 43 is attached to the back surface of 1.
表皮４１は、厚さ0.3乃至0.4mmの織布、不織
布、編布、またはカーペツトなど立毛繊維製品よ
る成る。 The skin 41 is made of a napped fiber product such as woven fabric, non-woven fabric, knitted fabric, or carpet with a thickness of 0.3 to 0.4 mm.
保護フイルム４３は、溶融状態にある基材材料
３の融着可能で、かつ表皮４１と熱融着または接
着剤を介して接着することのできるフイルムであ
つて、さらに基材材料３の熱および圧縮流動によ
る応力により破損しない性能を有することが要求
される。 The protective film 43 is a film that can be bonded to the base material 3 in a molten state, and can be bonded to the skin 41 by heat fusion or adhesive, and further protects the base material 3 from heat and heat. It is required to have the ability not to be damaged by stress caused by compressive flow.
このような理由から基材材料３がポリオレフイ
ン系の材料の場合は、保護フイルム４３はゴム成
分が30乃至70重量％であるオレフイン系熱可塑性
エラストマーの単独またはポリプロピレンとのブ
レンド物の厚さ0.2乃至0.7mmのフイルムが使用さ
れる。 For these reasons, when the base material 3 is a polyolefin-based material, the protective film 43 is made of an olefin-based thermoplastic elastomer having a rubber component of 30 to 70% by weight, alone or blended with polypropylene, and has a thickness of 0.2 to 70%. 0.7mm film is used.
複合成形体の成形は、ほぼ室温に保たれた上型
１と30乃至50℃に保たれた下型２との中間に表皮
層材料４を上下の型の外方で保持するクランプに
て位置させ、下型２の所定成形面部分位置に適正
量の基材材料３をダイ１５から流出させて分配載
置する。流出物は丸棒状、長円棒状、角柱状もし
くはシート状で、その温度は基材材料３の種類に
より異なるが一般に150乃至230℃である。 Molding of the composite molded article is carried out using clamps that hold the skin layer material 4 on the outside of the upper and lower molds between an upper mold 1 kept at approximately room temperature and a lower mold 2 kept at 30 to 50°C. Then, an appropriate amount of the base material 3 is flowed out from the die 15 and placed on a predetermined molding surface portion of the lower mold 2. The effluent is in the shape of a round rod, elliptical rod, prism, or sheet, and its temperature varies depending on the type of base material 3, but is generally 150 to 230°C.
つぎに上型１と下型２とを油圧プレス１６で型
締めする。型締力すなわちこの場合の圧縮成形圧
力は成形品の加圧方向の成形品投影面積１平方セ
ンチメートル当り50乃至100Kgで、射出成形の場
合の半分以下である。型締めにより基材材料３は
下型２の成形面と保護フイルム４３の中間を流動
して上下の型１，２で形成されるキヤビテイの端
末に至る。キヤビテイの端末において、上型１の
下型２はたとえば第４図に示したように上下の型
の分割面２１，２２に、基材材料３の成形領域外
周端２３に接して、加圧方向に対して２乃至15゜
の抜き勾配を有する面に沿つて互いに近接対峙す
る側壁２４，２５が設けられている。それらの側
壁２４，２５間の型締め時の隔たりは、成形時圧
縮された表皮層材料４の厚さとほぼ同一で、側壁
２４，２５の加圧方向での長さは５乃至15mmであ
る。この側壁２４，２５の作用により、表皮層材
料４を介して上下の型１，２を型締めしても基材
材料３は前記のように適正量が所定位置に分配さ
れているのでその成形領域外に漏出することはな
い。 Next, the upper mold 1 and the lower mold 2 are clamped together using a hydraulic press 16. The mold clamping force, that is, the compression molding pressure in this case, is 50 to 100 kg per square centimeter of the projected area of the molded product in the pressing direction, which is less than half of that in injection molding. By clamping the molds, the base material 3 flows between the molding surface of the lower mold 2 and the protective film 43 and reaches the end of the cavity formed by the upper and lower molds 1 and 2. At the end of the cavity, the lower mold 2 of the upper mold 1 is in contact with the dividing surfaces 21 and 22 of the upper and lower molds and the outer peripheral edge 23 of the molding area of the base material 3, as shown in FIG. Side walls 24, 25 are provided in close opposition to each other along planes having a draft angle of 2 to 15 degrees relative to the front. The distance between the side walls 24 and 25 during mold clamping is approximately the same as the thickness of the skin layer material 4 compressed during molding, and the length of the side walls 24 and 25 in the pressing direction is 5 to 15 mm. Due to the action of the side walls 24 and 25, even if the upper and lower molds 1 and 2 are clamped through the skin layer material 4, the base material 3 is distributed in an appropriate amount at the predetermined positions as described above, so that the molding It will not leak out of the area.
このように圧縮成形された複合成形体は、僅か
な加圧冷却時間を経たのち、上下の型１，２を型
開きして取り出される。上下の型１，２は室温も
しくは比較的低温に保たれているとき、加圧冷却
時間は５乃至40秒で充分である。 The composite molded article compression-molded in this manner is taken out by opening the upper and lower molds 1 and 2 after a short period of time for cooling under pressure. When the upper and lower molds 1 and 2 are kept at room temperature or a relatively low temperature, a pressurized cooling time of 5 to 40 seconds is sufficient.
取り出された複合成形体の不要表皮層材料部分
をトリミングするか、基材の裏面に巻き返して接
着剤または打ち込みくぎで固定すると完成品が得
られる。 A finished product is obtained by trimming the unnecessary portion of the skin layer material of the composite molded product taken out, or by rolling it back onto the back side of the base material and fixing it with adhesive or nails.
さらに第二の実施例として、第５図に示したよ
うに、上型１の成形面に多数の排気孔６を削孔
し、それらの各他端を通孔７に連通さえ、通孔７
を排気用パイプ８を介して図示していない真空ポ
ンプに接続して、クランプ５で保持され予熱され
ている表皮層材料４を、その表皮側が上型１を成
形面に接するように上型１の成形面で真空成形
し、そのまま引き続き成形面に吸引保持させた状
態で、前記と同じ方法で、下型２の成形面部分に
基材材料３を分配したのち型締めして複合成形体
が得られる。その場合上型１の成形面にしぼ模様
が刻設されているか、または成形面に複雑な起伏
があつても、成形面を忠実に反転した表皮層から
なる複合成形体が得られるほか、表皮層材料４が
加温されているので基材材料３と強固に接着され
る。 Furthermore, as a second embodiment, as shown in FIG.
is connected to a vacuum pump (not shown) via an exhaust pipe 8, and the skin layer material 4 held by the clamp 5 and preheated is placed in the upper mold 1 so that the skin side is in contact with the molding surface of the upper mold 1. Vacuum forming is carried out on the molding surface of the lower mold 2, and while the molding surface is continuously held under suction, the base material 3 is distributed on the molding surface of the lower mold 2 in the same manner as described above, and then the mold is clamped to form a composite molded body. can get. In this case, even if the molding surface of the upper mold 1 is engraved with a wrinkled pattern or has complicated undulations, a composite molded product consisting of a skin layer that is a faithful inversion of the molding surface can be obtained, and a Since the layer material 4 is heated, it is firmly bonded to the base material 3.
［比較例］
なお、第６図に示したように、表皮層材料４の
表皮４１側を下型２の成形面に位置させ、その保
護フイルム４３上の所定位置に基材材料３を分配
載置したのち、上下の型１，２を型締めして複合
成形体を製造することも検討した。[Comparative Example] As shown in FIG. 6, the skin 41 side of the skin layer material 4 was positioned on the molding surface of the lower mold 2, and the base material 3 was distributed and placed at predetermined positions on the protective film 43. We also considered manufacturing a composite molded body by clamping the upper and lower molds 1 and 2 after placing the molds in place.
しかしながら、大型の複合成形体を製造すると
きは、基材材料３の分配載置は型締めに比べて時
間を要するから、まず最初に基材材料３が載置さ
れた保護フイルム部分と基材材料３が載置されな
かつた保護フイルム部分とでは、その熱軟化の度
合いが極端に異なるので、保護フイルム４３の切
断、保護フイルム４３と基材材料３との接着不良
が起るほか、立毛繊維材からなる表皮４１の場合
回復不可能な毛倒れ等が生じたり、さらに表皮４
１表面に基材材料３のフローマークが現出するこ
とがあり、この方法は保護フイルム４３の選択が
困難なこともあり、好ましい方法ではなかつた。 However, when producing a large composite molded article, distributing and placing the base material 3 takes more time than mold clamping, so first the protective film portion on which the base material 3 is placed and the base material are separated. Since the degree of thermal softening is extremely different between the parts of the protective film on which the material 3 is not placed, cutting of the protective film 43 and poor adhesion between the protective film 43 and the base material 3 may occur, as well as napped fibers. In the case of the epidermis 41 made of wood, unrecoverable hair fall may occur, and further damage to the epidermis 4 may occur.
Flow marks of the base material 3 may appear on one surface, and this method is not a preferable method because it is difficult to select the protective film 43.
［発明の効果］
この発明の表皮層付複合成形体の製造方法は上
記のように構成されているので、つぎのような効
果を有する。[Effects of the Invention] Since the method for producing a composite molded article with a skin layer according to the present invention is configured as described above, it has the following effects.
表皮層材料の裏面に貼着された保護フイルム
は、表皮が破れやすい織布や不織布などの場合
は、成形時の基材材料の流動に対してその平滑性
および剪断抵抗性により表皮の裂断を保護し、か
つ表皮層と基材との接合を接着剤を使用すること
なく強固に接着することができる。 If the protective film attached to the back of the skin layer material is made of woven or non-woven fabrics that are prone to tearing, the protective film may cause the skin to tear due to its smoothness and shear resistance against the flow of the base material during molding. It is possible to protect the skin layer and the base material, and to firmly bond the skin layer and the base material without using an adhesive.
表皮が伸びのある編布などの場合は、基材材料
の流動に対して、保護フイルムは編布の伸びを抑
制して編目に基材材料が入り込んだり、編布にし
わが発生するのを防止し基材との接着を強固にす
る。 In the case of knitted fabrics with stretchy skin, the protective film suppresses the elongation of the knitted fabric against the flow of the base material, preventing the base material from entering the stitches and preventing wrinkles from forming in the knitted fabric. to strengthen the adhesion to the base material.
さらにこの発明は、表皮層材料を上型側に、基
材材料を下型の成形面上に位置させて、圧縮成形
することにより、比較例のように表皮層材料の表
皮側を下型の成形面に位置させ、その保護フイル
ム上の所定位置に基材材料を分配載置したのち、
上下の型を型締めして複合成形体を製造する場合
に比べて、保護フイルムの切断、保護フイルムと
基材材料との接着不良、立毛繊維材からなる表皮
の場合の回復不可能な毛倒れ等の不具合を解消す
ることができた。 Furthermore, in this invention, by placing the skin layer material on the upper mold side and the base material on the molding surface of the lower mold, and performing compression molding, the skin side of the skin layer material is placed on the lower mold side as in the comparative example. After placing the base material on the molding surface and distributing the base material at predetermined positions on the protective film,
Compared to the case where the upper and lower molds are clamped to produce a composite molded body, there are problems such as cutting of the protective film, poor adhesion between the protective film and the base material, and irrecoverable hair fall in the case of a skin made of napped fiber material. We were able to resolve the following problems.
また基材材料は押出機で混練溶融され、ダイか
ら下型成形面部分に分配載置され、型締めされる
ので、材料の混練、溶融、型注入時に基材材料に
かかる圧力は射出成形時に比べて低いため、流れ
の悪い材料やガラス繊維のような成形過程で切断
しやすい補強材を含む材料であつても、基材材料
の有する特性を保持したまま複合成形体を製造す
ることができる。さらに基材部分に肉厚のリブや
ボスがあつても、その部分に溶融材料の分配量を
多くすれば、充填不良、ひけ、空洞の発生がなく
なり、複合成形体の外観を損うことはない。 In addition, the base material is kneaded and melted in an extruder, distributed from the die to the lower molding surface, and then clamped, so the pressure applied to the base material during material kneading, melting, and injection into the mold is reduced during injection molding. This makes it possible to manufacture composite molded objects while retaining the properties of the base material, even with materials that do not flow well or contain reinforcing materials that are easily cut during the molding process, such as glass fiber. . Furthermore, even if there are thick ribs or bosses in the base material, increasing the amount of molten material distributed to those parts will eliminate filling defects, sink marks, and cavities, and will not damage the appearance of the composite molded product. do not have.
特に、表皮層材料を上型の成形面に真空成形
し、そのまま成形面に吸引保持させる方法では、
上記の効果に加えて、下記の効果も発揮する。 In particular, in the method of vacuum forming the skin layer material on the molding surface of the upper mold and holding it by suction on the molding surface,
In addition to the above effects, the following effects are also exhibited.
上型の成形面のしぼ模様や複雑な起伏を忠実に
転写して、減り張りのある表面を有する複合成形
体が得られるほか、表皮層材料が加温されている
ので基材材料との接着は強固となる。 The wrinkled pattern and complicated undulations on the molding surface of the upper mold are faithfully transferred, resulting in a composite molded product with a reduced and taut surface, and since the skin layer material is heated, it has good adhesion to the base material. becomes strong.
なお、この方法では裏面に貼着された保護フイ
ルムにより、表皮層材料としては非通気性となる
から、表皮が通気性であつても実施することがで
きる。 In addition, in this method, the protective film attached to the back surface makes the skin layer material impermeable, so it can be carried out even if the skin is breathable.
また、表皮層材料が上型の成形面に吸引保持さ
れているから、基材材料の流動による摩擦により
表皮層材料がずれ動くことを阻止できる。特に上
型の成形面にしぼ模様や複雑な起伏が設けられて
いるときは、表皮層材料の成形面との接触面積が
増大するので、ずれ動き阻止効果はさらに高ま
る。 Furthermore, since the skin layer material is suctioned and held on the molding surface of the upper mold, it is possible to prevent the skin layer material from shifting due to friction caused by the flow of the base material. In particular, when the molding surface of the upper mold is provided with a wrinkled pattern or complicated undulations, the contact area of the skin layer material with the molding surface increases, so that the effect of preventing displacement is further enhanced.
第１図はこの発明の上下の型および成形材料の
位置を示す断面図、第２図はこの発明の圧縮成形
装置の概略を示す説明図、第３図は表皮層材料の
断面図、第４図は上下の型のキヤビテイ端末部を
示す断面図、第５図は第二の実施例における上下
の型および成形材料の位置を示す断面図、そして
第６図は比較例の上下の型および成形材料の位置
を示す断面図である。
１……上型、２……下型、３……基材材料、４
……表皮層材料、４１……表皮、４３……保護フ
イルム。
FIG. 1 is a cross-sectional view showing the positions of the upper and lower molds and molding material of the present invention, FIG. 2 is an explanatory view showing the outline of the compression molding apparatus of the present invention, FIG. The figure is a sectional view showing the cavity end portions of the upper and lower molds, FIG. 5 is a sectional view showing the positions of the upper and lower molds and molding material in the second embodiment, and FIG. 6 is the upper and lower molds and molding of a comparative example. It is a sectional view showing the position of the material. 1... Upper mold, 2... Lower mold, 3... Base material, 4
...Skin layer material, 41 ... Epidermis, 43 ... Protective film.
Claims (1)
成る表皮の裏面に保護フイルムが貼着されている
表皮層材料を、その表皮側が上型の成形面に対向
するように上下の型の中間に位置させるか、また
はその表皮側が上型の成形面に接するように上型
で真空成形するとともに、そのまま引き続き吸引
保持し、計量された溶融状態にある基材材料を、
下型の成形面の所定位置に機械的に分配載置した
のち、上下の型を型締めして圧縮成形することを
特徴とする、表皮層付複合成形体の製造方法。1. A skin layer material made of woven fabric, non-woven fabric, knitted fabric, or napped fiber product with a protective film attached to the back side of the skin is placed between the upper and lower molds so that the skin side faces the molding surface of the upper mold. The base material in a molten state is vacuum-formed in the upper mold so that its skin side is in contact with the molding surface of the upper mold, and the base material is continuously held under suction.
A method for manufacturing a composite molded article with a skin layer, which comprises mechanically distributing and placing the lower mold at predetermined positions on the molding surface, and then clamping the upper and lower molds to perform compression molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2474586A JPS62181113A (en) | 1986-02-06 | 1986-02-06 | Manufacture of composite molded form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2474586A JPS62181113A (en) | 1986-02-06 | 1986-02-06 | Manufacture of composite molded form |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29521090A Division JPH03162914A (en) | 1990-11-02 | 1990-11-02 | Manufacture of composite formed body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62181113A JPS62181113A (en) | 1987-08-08 |
| JPH045523B2 true JPH045523B2 (en) | 1992-01-31 |
Family
ID=12146678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2474586A Granted JPS62181113A (en) | 1986-02-06 | 1986-02-06 | Manufacture of composite molded form |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62181113A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6418622A (en) * | 1987-07-14 | 1989-01-23 | Kasai Kogyo Kk | Manufacture of interior trim for automobile |
| JPS6418623A (en) * | 1987-07-14 | 1989-01-23 | Kasai Kogyo Kk | Manufacture of interior trim for automobile |
| JP2501610B2 (en) * | 1988-01-29 | 1996-05-29 | 三井石油化学工業株式会社 | Laminated molded body and method for manufacturing the same |
| JPH01222936A (en) * | 1988-03-01 | 1989-09-06 | Toray Ind Inc | Vehicular interior molded item |
| JPH01259936A (en) * | 1988-04-12 | 1989-10-17 | Toray Ind Inc | Laminated molded product and its manufacture |
| JP2781925B2 (en) * | 1989-10-24 | 1998-07-30 | 豊田合成株式会社 | Manufacturing method of stamping molded product |
| JP2006142593A (en) * | 2004-11-18 | 2006-06-08 | Sumitomo Chemical Co Ltd | Manufacturing method of multilayered molded product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57137157A (en) * | 1981-02-20 | 1982-08-24 | Yamakawa Kogyo Kk | Manufacture of plate for special form interior and exterior finish |
| JPS59150740A (en) * | 1983-02-16 | 1984-08-29 | Sumitomo Chem Co Ltd | Preparation of multi-layered molded article |
| JPS62151310A (en) * | 1985-12-25 | 1987-07-06 | Kotobukiya Furonte Kk | Molding method for carpet of motor car and molding tool |
-
1986
- 1986-02-06 JP JP2474586A patent/JPS62181113A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57137157A (en) * | 1981-02-20 | 1982-08-24 | Yamakawa Kogyo Kk | Manufacture of plate for special form interior and exterior finish |
| JPS59150740A (en) * | 1983-02-16 | 1984-08-29 | Sumitomo Chem Co Ltd | Preparation of multi-layered molded article |
| JPS62151310A (en) * | 1985-12-25 | 1987-07-06 | Kotobukiya Furonte Kk | Molding method for carpet of motor car and molding tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62181113A (en) | 1987-08-08 |
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