JPH01242213A - Molding method for trimming material - Google Patents
Molding method for trimming materialInfo
- Publication number
- JPH01242213A JPH01242213A JP7075188A JP7075188A JPH01242213A JP H01242213 A JPH01242213 A JP H01242213A JP 7075188 A JP7075188 A JP 7075188A JP 7075188 A JP7075188 A JP 7075188A JP H01242213 A JPH01242213 A JP H01242213A
- Authority
- JP
- Japan
- Prior art keywords
- molding
- skin material
- mold
- materials
- urethane
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 82
- 238000000465 moulding Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims description 37
- 238000009966 trimming Methods 0.000 title abstract 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 10
- 238000010030 laminating Methods 0.000 claims abstract description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 3
- 239000006260 foam Substances 0.000 description 10
- 239000010410 layer Substances 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000006261 foam material Substances 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007666 vacuum forming Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010097 foam moulding Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 101000856234 Clostridium acetobutylicum (strain ATCC 824 / DSM 792 / JCM 1419 / LMG 5710 / VKM B-1787) Butyrate-acetoacetate CoA-transferase subunit A Proteins 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は内装材、特に自動車等のソフト内装材の成形方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for molding interior materials, particularly soft interior materials for automobiles and the like.
自動車等のソフト感が要求される内装材、例えばインパ
ネ部分パッド、ドアトリムアッパーまたはピラー等の成
形方法としては、以下のものが知られている。The following methods are known for forming interior materials for automobiles that require a soft feel, such as instrument panel pads, door trim uppers, and pillars.
■ 一体発泡成形
表皮材と芯材とを型内にセットし、これにウレタンフオ
ーム材を注入し、発泡させて一体化する成形法（例えば
特開昭５９−４９９４７号公報等）。(1) Integral foam molding A molding method in which a skin material and a core material are set in a mold, a urethane foam material is injected into the material, and the material is foamed and integrated (for example, JP-A-59-49947, etc.).
■ モールドコート成形
型のキャビテイ面に塗料を吹付は表層を形成し、その後
芯材との間にウレタン材を注入し一体化する成形法（「
生産用語事典」トヨタ技術会編、第４５０頁（１９８５
年））。■ Mold coat A molding method in which paint is sprayed on the cavity surface of the mold to form a surface layer, and then urethane material is injected between it and the core material to integrate it.
"Production Terminology Dictionary" edited by Toyota Engineering Society, p. 450 (1985)
Year)).
■ 張り込み成形
基材の上に接着剤を塗布し、その上から予めフオーム層
を有する表皮材を真空成形により接着する成形法（例え
ば特開昭６２−１１１７２１号公報等）。(2) A molding method in which an adhesive is applied onto a base material for tension molding, and a skin material having a foam layer is bonded thereon by vacuum molding (for example, JP-A-62-111721, etc.).
■ 発泡スラッシュ成形
発泡スラッシュにより得たフオーム層を有する表皮材と
硬質ウレタンとを型内で一体化する成形法（例えば特開
昭６１−１６２３２号公報および実開昭６２−１６６０
０９号公報等）。■ Foaming slush molding A molding method in which a skin material having a foam layer obtained by foaming slush and hard urethane are integrated in a mold (for example, Japanese Patent Laid-Open No. 61-16232 and Utility Model Laid-Open No. 62-1660)
Publication No. 09, etc.).
（発明が解決しようとする課題〕
しかしながら、上記成形方法のうち、■の方法は成形工
程が多く生産性が非常に悪く、そして■、■、■の方法
は、高圧で発泡させるため、高価な型が必要であり、さ
らに■の方法は真空装置が高価でしかも材料の歩留りが
悪いという、各々の問題点を有している。そして上記の
いずれの方法も、ウレタンフオーム材、硬質ウレタンま
たはフオーム層を有する表皮材等の高価な材ネ４を使用
するため、製品コストが高くなるという問題もある。(Problems to be Solved by the Invention) However, among the above molding methods, method (1) involves many molding steps and has very low productivity, and methods (2), (2), and (3) require high pressure foaming, which is expensive. A mold is required, and method (2) has its own problems, such as expensive vacuum equipment and poor material yield.Also, all of the above methods require urethane foam materials, hard urethane materials, or foam materials. Since an expensive material 4 such as a layered skin material is used, there is also the problem that the product cost is high.
上記の方法の他に、ウレタンスラブと表皮材を一体化し
たソフト表皮材を基材に真空成形する方法（張り込み成
形）や、製品形状に凸凹のない例えば平板ドアトリムの
基材と表皮＋４との間にウレタンスラブを挿入する方法
等もあるが、前者の方法は上記のようにコスト高であり
、後者のものは平板状の製品のみで通用範囲が狭く、上
記の問題点を解決するものではない。In addition to the above methods, there is also a method of vacuum forming a soft skin material that integrates a urethane slab and a skin material onto a base material (pasting molding), and a method of vacuum forming a soft skin material that integrates a urethane slab and a skin material onto a base material, or a method of vacuum forming a base material of a flat door trim and a skin +4 without unevenness in the product shape. There are methods such as inserting a urethane slab in between, but the former method is expensive as mentioned above, and the latter method is limited to flat products and has a narrow range of applications, and does not solve the above problems. do not have.
また、低コストで成形できる射出成形、植を成形および
スタンピング成形等は、いずれも内装材に必要なソフト
性を満足させる製品を与えるものではない。In addition, injection molding, plant molding, stamping molding, etc., which can be formed at low cost, do not provide products that satisfy the softness required for interior materials.
本発明は、このような問題点を解決するためのものであ
り、十分なソフト感を有し、そして表皮材、フオーム層
および基材が強固に接着さた成形品を生産性高く得るこ
とができる成形方法を提供することを目的とする。The present invention is intended to solve these problems, and makes it possible to obtain molded products with sufficient softness and in which the skin material, foam layer, and base material are firmly adhered with high productivity. The purpose is to provide a molding method that can be used.
（課題を解決するための手段〕
上記の目的を達成するために、本発明の内装材の成形方
法は、未硬化状態のスラッシュ成形表皮上にウレタンス
ラブ、その上に熱可塑性相、脂シートを積層し、これら
を熱圧着成形することを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the interior material molding method of the present invention includes a urethane slab on an uncured slush molded skin, and a thermoplastic phase and a fat sheet on top of the urethane slab. It is characterized by laminating them and molding them by thermocompression.
本発明における未硬化状態のスラッシュ成形表皮とは、
慣用の方法、例えば加熱した型内で塩化ビニル等のパウ
ダーまたはゾルを用いてスラッシュ成形により表皮材を
成形する際、冷却硬化させる前の状態のものを意味し、
例えばｔｉｆｆ記型を成形時の温度に保持することによ
り未硬化状態は保たれる。。The uncured slush-molded skin in the present invention is
When molding a skin material by a conventional method, for example, by slush molding using powder or sol of vinyl chloride in a heated mold, it means the state before cooling and hardening.
For example, the uncured state can be maintained by maintaining the tiff marking mold at the temperature during molding. .
また、本発明の内装材の成形方法は、前記未硬化状態の
スラッシュ成形表皮上にソフトフオーム層となるウレタ
ンスラブおよび基材きなる熱可塑性樹脂シートを積層し
てこれら積層体を型締後熱圧着成形する。この時、型締
前に前記型内の積層体を加熱しても、または型締後に加
熱しても良いが、好ましくは上下両型の組付は前に加熱
した後に型締する。またこの時の加熱温度は、使用した
材才。ｌにより適宜選択する。In addition, the method for molding interior materials of the present invention includes laminating a urethane slab serving as a soft foam layer and a thermoplastic resin sheet serving as a base material on the uncured slush-molded skin, and heating these laminates after mold clamping. Press and mold. At this time, the laminate in the mold may be heated before the mold is clamped or after the mold is clamped, but preferably the upper and lower molds are assembled after being heated before the mold is clamped. Also, the heating temperature at this time depends on the quality of the material used. Select as appropriate according to l.
本発明の方法により成形される表皮材は、好ましくは０
．４ないし０．８ｍ＋ａの１￥さを有するものである。The skin material molded by the method of the present invention preferably has a
．． It has a height of 4 to 0.8m+a.
また、本発明において使用するウレタンスラブは、エー
テル系またはエステル系等の材質には特に制限されず、
市販のものを使用できる。In addition, the urethane slab used in the present invention is not particularly limited to ether-based or ester-based materials,
Commercially available products can be used.
そして、該ウレタンスラブは、製品で必要なソフトフオ
ーム層の厚さの約２ないし５倍の厚さのものを積層する
。The urethane slab is then laminated to a thickness approximately 2 to 5 times the thickness of the soft foam layer required for the product.
さらに熱可塑性樹脂シートは、例えばポリプロピレン（
木粉、タルクまたはガラス繊維入りのもの、およびＴＧ
ＰＰも含む）が使用でき、好ましくは厚さが０．５ない
し５．０ａ＋ｎ＋のちのであ〔作用〕
本発明の内装材の成形方法は、表皮材の成形をスラッシ
ュ成形により行うため、歩留りが良く低コストで表皮材
が成形できる。Furthermore, the thermoplastic resin sheet can be made of polypropylene (
Those with wood flour, talc or glass fiber, and TG
(including PP), and preferably has a thickness of 0.5 to 5.0a+n+ [Function] The interior material molding method of the present invention has a high yield because the skin material is molded by slush molding. Skin material can be molded at low cost.
また、ソフトフオーム層として使用するウレタンスラブ
により、内装材として十分なソフト感が得られる。In addition, the urethane slab used as the soft foam layer provides a soft feel sufficient for use as an interior material.
さらに、本発明の内装材の成形方法は、未硬化の表皮材
とウレタンスラブとが９８Ｍし、しかも表皮材、ウレタ
ンスラブおよび熱可塑性樹脂シートを同時に熱圧着によ
り接着するため、各材ネー１間で材料同士が固着するか
またはアンカー効果にて接着し、材料破壊状態まで各材
料が強固に接着した内装材を生産性高く得ることができ
る。Furthermore, in the interior material molding method of the present invention, the uncured skin material and the urethane slab are bonded to 98 M, and the skin material, urethane slab, and thermoplastic resin sheet are simultaneously bonded by thermocompression bonding, so that the distance between each material is 98M. The materials are fixed to each other or adhered by an anchor effect, and it is possible to obtain an interior material with high productivity in which each material is firmly adhered to the point of material failure.
次に実施例に基づいて本発明をさらに詳しく説明するが
、本発明はこれに限定されるものではない。Next, the present invention will be explained in more detail based on Examples, but the present invention is not limited thereto.
本実施例では、まず第１図に示すフローチャートに従っ
て行った、第２図および第３図に示すインパネ部分パッ
ド５の成形過程について説明する。In this embodiment, first, the process of forming the instrument panel pad 5 shown in FIGS. 2 and 3, which was carried out according to the flowchart shown in FIG. 1, will be described.
スラッシュ成形用の電鋳型（下型）を約２４０°Ｃに加
熱し、塩化ビニルパウダーによるスラッジ１成形をまず
行い、厚さが０．４５ｍｍの塩化ビニル表皮材１を成形
する。この表皮材１を未硬化の状態に保つためその時の
型温度を保持したまま、該下型内の表皮材！の上に製品
で必要とするソフトフオーム層の厚さの約２ないし５倍
（本実施例では、フオーム層の厚さを２．５ａ＊とする
ため、約５１１Ｉ＋１ないし１２．５ａｕｓ）のウレタ
ンスラブ（ブリジストン製エバーライト）２をセットす
る。さらにその上に基材となる熱可塑性樹脂シート（こ
こでは厚さ１．４ｍの繊維入りポリプロピレン、三田製
作所製ハイパビア）３を同様にセットし、次いでこれら
全体を加熱する。An electroforming mold (lower mold) for slush molding is heated to about 240° C., and a sludge 1 is first molded using vinyl chloride powder to form a vinyl chloride skin material 1 having a thickness of 0.45 mm. In order to keep this skin material 1 in an uncured state, the mold temperature at that time is maintained, and the skin material inside the lower mold! A urethane slab with a thickness of about 2 to 5 times the thickness of the soft foam layer required for the product on top (in this example, the thickness of the foam layer is 2.5a*, so about 511I+1 to 12.5aus). (Bridgestone Everlight) Set 2. Further, a thermoplastic resin sheet 3 serving as a base material (here, 1.4 m thick fiber-filled polypropylene, Hypervia manufactured by Sanda Seisakusho) is similarly set thereon, and then the entire sheet is heated.
この時前記基材を予熱しておくことは、サイクルアップ
に効果的である。Preheating the base material at this time is effective for increasing the cycle.
基材３が１７０°Ｃ以上になったら、下型とで必要なり
リアランスを有する上型を組付けて型締を行う。When the temperature of the base material 3 reaches 170° C. or higher, an upper mold having the necessary clearance with the lower mold is assembled and the mold is clamped.
ここで製品に取りつけ用等のブラケント４が必要な場合
は、予め上型に該グラケント４用のクリアランスを設け
ておく。If the product requires a bracket 4 for attachment, etc., clearance for the bracket 4 is provided in advance in the upper mold.
この後約１ないし３分間キヱアさせ、そして６０℃まで
冷却させた後、脱型する。This is followed by heating for about 1 to 3 minutes and cooling to 60°C before demolding.
このようにして得られたインパネ部分パッド５は、ソフ
ト感のある、そして各材料が破壊状態になるまで強固に
接着されたものである。The instrument panel pad 5 thus obtained has a soft feel, and each material is firmly bonded to the other until it breaks.
また、このインパネ部分パッド５の製作コストは、従来
の方法に比較して大幅に低下した。Furthermore, the manufacturing cost of this instrument panel pad 5 has been significantly reduced compared to conventional methods.
これを、本発明の方法による場合を１として従来の方法
で行った場合と比較すると、張り込み成形が１．８ない
し２．０、一体発泡成形が１．５ないし１．８、発泡ス
ラッシュ成形が１．４ないし１゜７およびモールドコー
ト成形が２．５だった。この結果は、本発明の方法が、
非常に低コストで行い得ることを示している。Comparing this with the case of the method of the present invention as 1 and the case of the conventional method, it is 1.8 to 2.0 for stretch molding, 1.5 to 1.8 for integral foam molding, and 1.5 to 1.8 for foam slush molding. 1.4 to 1°7 and mold coat molding was 2.5. This result shows that the method of the present invention
This shows that it can be done at a very low cost.
同様の操作により、ドアトリム６のドアトリムアノバー
（第４．５図）７およびピラー（第６．７図）８を成形
したが、これらもインパネ部分バンドと同様に低コスト
で成形でき、ソフト感を有しそして各材料が強固に接着
されているものだった。Similar operations were used to mold the door trim annover (Fig. 4.5) 7 and pillar (Fig. 6.7) 8 of the door trim 6, and like the instrument panel band, these can also be molded at low cost and have a soft feel. and each material was firmly bonded.
以上詳細に説明したように、本発明の内装材の成形方法
は、内装材に要求される十分なソフト感を有し、しかも
表皮材、ウレタンスラブおよび熱可望性樹脂シートの各
材料が強固に接着した内装材の提供を可能とした。As explained in detail above, the method for molding interior materials of the present invention has the sufficient soft feel required for interior materials, and the materials of the skin material, urethane slab, and thermoplastic resin sheet are strong. This makes it possible to provide interior materials that are bonded to
また、本方法は表皮材のスラッシュ成形および各材料の
接着を同時に行うため、生産性を著しく向上させるもの
である。In addition, this method significantly improves productivity because slush molding of the skin material and adhesion of each material are performed at the same time.
しかもこの内装材の成形方法は、従来のように高価なウ
レタンフオームや接着剤等の材料を使用せず、歩留り良
く成形できる表皮材並びに大量生産可能なウレタンスラ
ブおよび熱可塑性樹脂シートという全て安価な材料を使
用し、簡便な手順で成形するものであるため、製造コス
トの大幅な削減を可能とした。Moreover, the molding method for this interior material does not use conventional materials such as expensive urethane foam or adhesives, and uses inexpensive skin materials that can be molded with high yield, urethane slabs that can be mass-produced, and thermoplastic resin sheets. Since it uses materials and is molded using a simple procedure, it has made it possible to significantly reduce manufacturing costs.
第１図は、本発明に係る内装材の成形一方法のフローチ
ャート、
第２図は、本発明に係る内装材の成形方法により成形さ
れたインパネ部分パッドの斜視図、第３図は、第２図の
１−１線断面図、
第４図は、本発明に係る内装材の成形方法により成形さ
れたドアトリムアッパーの斜視図、第５図は、第４図の
■−ｕ線断面図、
第６図は、本発明に係る内装材の成形方法により成形さ
れたピラーの斜視図、
第７図は、第６図の■−■線断面図を表す。
図中、
１・・・表皮材 ２・・・ウレタンスラブ３・・・
熱可塑性樹脂シート
第１図
第２図 ２３図
し１FIG. 1 is a flowchart of a method for molding an interior material according to the present invention, FIG. 2 is a perspective view of an instrument panel pad formed by the method for molding an interior material according to the present invention, and FIG. 4 is a perspective view of a door trim upper molded by the interior material molding method according to the present invention; FIG. 5 is a sectional view taken along line ■-u in FIG. 4; 6 is a perspective view of a pillar molded by the interior material molding method according to the present invention, and FIG. 7 is a sectional view taken along the line ■-■ in FIG. 6. In the figure, 1...Skin material 2...Urethane slab 3...
Thermoplastic resin sheet Figure 1 Figure 2 Figure 23 Figure 1
Claims (1)
その上に熱可塑性樹脂シートを積層し、これらを熱圧着
成形することを特徴とする内装材の成形方法。Urethane slab on uncured slush molded skin,
A method for molding an interior material, which comprises laminating a thermoplastic resin sheet thereon and thermocompression molding the sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7075188A JPH01242213A (en) | 1988-03-24 | 1988-03-24 | Molding method for trimming material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7075188A JPH01242213A (en) | 1988-03-24 | 1988-03-24 | Molding method for trimming material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01242213A true JPH01242213A (en) | 1989-09-27 |
Family
ID=13440528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7075188A Pending JPH01242213A (en) | 1988-03-24 | 1988-03-24 | Molding method for trimming material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01242213A (en) |
-
1988
- 1988-03-24 JP JP7075188A patent/JPH01242213A/en active Pending
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