JPH01232009A - Manufacture of skin part in insulator - Google Patents
Manufacture of skin part in insulatorInfo
- Publication number
- JPH01232009A JPH01232009A JP63058894A JP5889488A JPH01232009A JP H01232009 A JPH01232009 A JP H01232009A JP 63058894 A JP63058894 A JP 63058894A JP 5889488 A JP5889488 A JP 5889488A JP H01232009 A JPH01232009 A JP H01232009A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- inorganic filler
- skin
- insulator
- molding
- 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.)
- Granted
Links
- 239000012212 insulator Substances 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 238000000465 moulding Methods 0.000 claims abstract description 19
- 239000011256 inorganic filler Substances 0.000 claims abstract description 12
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims abstract description 3
- 230000008018 melting Effects 0.000 claims abstract description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 9
- 238000005187 foaming Methods 0.000 abstract description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 3
- 229920001585 atactic polymer Polymers 0.000 abstract 1
- 210000003491 skin Anatomy 0.000 description 21
- 238000000034 method Methods 0.000 description 17
- 239000002994 raw material Substances 0.000 description 4
- 238000009966 trimming Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
−この発明は、自動車のダッシュパネルインシュレータ
（以下、インシュレータという。）に使用される表皮部
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) - The present invention relates to a method for manufacturing a skin portion used in an automobile dash panel insulator (hereinafter referred to as an insulator).
（従来の技術）
自動車のエンジンルームと単室との隔壁部のボディパネ
ルには、防音を目的としたインシュレータが取付けられ
ている。通常、インシュレータは表皮部とその裏面側に
積層されるパッド部とからなっている。以下に、インシ
ュレータの従来の製法について説明する。(Prior Art) An insulator for the purpose of soundproofing is attached to a body panel of a partition wall between an engine compartment and a single compartment of an automobile. Usually, an insulator consists of a skin part and a pad part laminated on the back side of the skin part. A conventional method for manufacturing an insulator will be described below.
まず、表皮部について説明すると、表皮部の原料は再生
塩化ビニル材および炭酸カルシウム（以下、タンカルと
いう）および可塑材としてのり。First, to explain the skin part, the raw materials for the skin part are recycled vinyl chloride material, calcium carbonate (hereinafter referred to as Tankal), and glue as a plasticizer.
Ｐ（フタル酸ジオクチル）を所定の混合比で調合したも
のが使用される。上記の各原料はニーダ機等を用いて溶
融混練される。しかる後、後工程へのハンドリングのた
めに、押出し機を用いてシート状に加工される。そして
、これはロール状に巻き取られ、定寸ずつ繰り出されな
がら、カットされて裁−品２０とされる（第４図状態）
。次いで、この裁断品２０はヒータ２１，２１で加熱さ
れて軟化される（第５図状態）。そして、そのまま１０
〜２０℃に冷却された成形用金型２２ａ、２２ｂに仕掛
けられ（第６図状態）、所要形状の表皮部製材２３が冷
間成形される。A mixture of P (dioctyl phthalate) at a predetermined mixing ratio is used. Each of the above raw materials is melt-kneaded using a kneader or the like. Thereafter, it is processed into a sheet using an extruder for handling in subsequent steps. This is then wound up into a roll, unrolled to a fixed size, and cut into a finished product 20 (state in Figure 4).
. Next, this cut product 20 is heated and softened by heaters 21, 21 (state shown in FIG. 5). And then 10
The molds 22a and 22b cooled to ~20[deg.] C. are set (as shown in FIG. 6), and a skin material 23 having a desired shape is cold-formed.
次いで、パッド部２４との貼り合わせがなされる。この
貼り合わせ方法としては、主として次の工法がよく知ら
れている。Next, the pad portion 24 is bonded. The following methods are mainly well known as this bonding method.
第１の方法（第７図参照）は、上記の表皮部素材２３を
プレス型に仕掛けておき、この後パッド部２４（予め所
定形状に成形された再生綿フェルトの熱圧成形品）を接
着剤を介して表皮部成形品に被せ、この状態でプレスに
よって貼り付ける方法である。The first method (see Fig. 7) is to place the skin material 23 in a press mold, and then glue the pad part 24 (a hot-press molded product of recycled cotton felt previously formed into a predetermined shape). This is a method in which the adhesive is applied to the skin part of the molded product via an agent, and then the adhesive is pasted by pressing in this state.
また、第２の方法（図示しない）は表皮部成形品を発泡
型にセットし、ウレタン樹脂を型内に注入し内部で発泡
させることによって表皮部成形品と同時成形されるパッ
ド部との接合を行なう方法である。The second method (not shown) is to set the skin part molded product in a foaming mold, inject urethane resin into the mold and foam it inside, thereby joining the skin part molded product and the pad part that is molded at the same time. This is a method of doing this.
なお、いずれの方法においても、その侵にトリミング型
に仕掛けられて各種部品取付は用の穴を適所に貫通させ
ながら同時にトリミングが行なわれる。こうして、表皮
部とパッド部とが接合された製品としてのインシュレー
タが取出される。In either method, a trimming mold is used to attach the various parts, and the trimming is performed at the same time by penetrating the holes in the appropriate places. In this way, the insulator as a product in which the skin part and the pad part are joined is taken out.
（発明が解決しようとする課題）
しかし、上記の方法では表皮部に対する成形工程数が多
く、成形時間が長いという問題点がある。(Problems to be Solved by the Invention) However, the above method has problems in that the number of molding steps for the skin portion is large and the molding time is long.
また、−旦シートにした後にブレヒートをかけてプレス
する方式であるため、ブレヒートのための設備および手
間を要する。また軟化させるのであるが、複雑な形状に
成形しようとすればプレス圧を高める必要から、設備が
大型化しやすい。In addition, since the method involves forming the sheet into a sheet and then applying bleed heat and press it, it requires equipment and labor for bleed heat. In addition, it softens the material, but if you want to mold it into a complicated shape, it is necessary to increase the press pressure, which tends to increase the size of the equipment.
そこで、本発明は成形工程数の削減と、設備の省力化を
図りうるインシュレータにおける表皮部の製造方法の提
供を目的とする。Therefore, an object of the present invention is to provide a method for manufacturing a skin portion of an insulator that can reduce the number of molding steps and save labor in equipment.
（課題を解決するための手段）
上記の目的を達成するための手段は、表皮部の一面にパ
ッド部が積層されてなるインシュレータの製造方法にあ
って、前記表皮部は熱可塑性樹脂材に無機フィラーを混
合し、この無機フィラー充填樹脂を加熱して溶融状態と
し、この溶融状態のまま前記無機フィラー充填樹脂より
低い温度に保持された成形面に対し吹付は塗布し、この
成形面上で冷却固化させることである。(Means for Solving the Problems) A means for achieving the above object is a method for manufacturing an insulator in which a pad portion is laminated on one surface of a skin portion, and the skin portion is made of thermoplastic resin material and an inorganic material. Filler is mixed, this inorganic filler-filled resin is heated to a molten state, and in this molten state, it is sprayed onto a molding surface kept at a lower temperature than the inorganic filler-filled resin, and then cooled on this molding surface. It is to solidify.
（作用）
パッド部の成形に先立ちあるいは成形後に、表皮部は熱
可塑性樹脂と無機フィラーとを原料としてまず混合され
、次いで加熱されて溶融状態とされ、そのままスプレー
ガン等にて成形型の一方の成形面の全面に吹付は塗布さ
れる。この場合、成形型は樹脂の溶融温度より低い温度
に保持されているため、樹脂はここで成形面に倣って冷
却固化し所定時間の経過後に所望とする表皮部が取出さ
れる。(Function) Before or after molding the pad part, the skin part is first mixed with a thermoplastic resin and an inorganic filler as raw materials, then heated to a molten state, and then sprayed on one side of the mold with a spray gun or the like. The spray is applied to the entire molding surface. In this case, since the mold is maintained at a temperature lower than the melting temperature of the resin, the resin is cooled and solidified along the molding surface, and the desired skin portion is removed after a predetermined period of time.
（実施例）
以下、本発明を具体化した実施例を図面にしたがって詳
細に説明する。(Example) Hereinafter, an example embodying the present invention will be described in detail with reference to the drawings.
まず、表皮部の製造について説明する。表皮部の原料と
しては、高メルトインデックス（Ｍｌ＝５０〜３００
（！Ｉ＋／１０分）・）の樹脂（例えば、ＥＶＡ（エチ
レンビニル共重合物）、アタクチックポリプロピレン等
）と、無機フィラー（例えば、タンカル、硫酸バリウム
等）とであり、前者を８０〜５０％１後者を２０〜５０
％の重量比で調合したものである。この場合の調合は、
押出し機１のホッパ２内で行なわれ、樹脂とフィラーと
を加熱することなく機械的に混合する方法によっている
。First, manufacturing of the skin part will be explained. As raw materials for the epidermis, high melt index (Ml = 50-300
(!I+/10 min)・) resin (for example, EVA (ethylene vinyl copolymer), atactic polypropylene, etc.) and inorganic filler (for example, tankar, barium sulfate, etc.), and the former is 80 to 50% %1 latter 20-50
% by weight. In this case, the formulation is
This is carried out in the hopper 2 of the extruder 1, and is a method of mechanically mixing the resin and filler without heating.
こうして調合されたブレンド樹脂は、押出し橙１の内部
へ供給される。ここで使用された押出し１１はいわゆる
スクリューコンベア式のものであり、ブレンド樹脂はこ
の押出し機１内で１８０〜２２０℃程度に加熱され、ス
クリューによる撹拌作用と併せて溶融混練され、その後
開閉弁１１によってシリンダ３に対して一定量ずつが送
られる。このシリンダ３は予め所定温度に加熱保温され
るとともに、その吐出側には溶融樹脂を定量供給するた
めの開閉弁１２を備え可撓性を有する圧送ホース４を介
して適数個のスプレーガン５が接続されている。各スプ
レーガン５は発泡型６ａ、６ｂの下型６ａに対して溶融
樹脂を塗布する役割を果ずものであり、詳しくは図示し
ないが、支持手段にて３次元的に移動しつるように支持
されている。The blended resin thus prepared is supplied into the extruded orange 1. The extruder 11 used here is of the so-called screw conveyor type, and the blended resin is heated to about 180 to 220°C in the extruder 1, melted and kneaded together with the stirring action of the screw, and then the on-off valve 11 A fixed amount is sent to the cylinder 3 by . This cylinder 3 is heated and kept at a predetermined temperature in advance, and has an on-off valve 12 on its discharge side for supplying a fixed amount of molten resin, and is connected to an appropriate number of spray guns 5 via a flexible pressure hose 4. is connected. Each spray gun 5 plays the role of applying molten resin to the lower mold 6a of the foaming molds 6a and 6b, and although not shown in detail, it is supported so as to move three-dimensionally by supporting means. has been done.
また、それぞれは図示しない動作制御手段に連繋されて
、その移動速度や溶融樹脂の吐出量等が制御可能であり
、部位に応じて吹付は厚さ（膜厚）を変更することがで
きるため、例えば防音性が強く要求される部位では厚膜
となるように設定しである。In addition, each is connected to an operation control means (not shown), so that the moving speed and the amount of molten resin discharged can be controlled, and the spraying thickness (film thickness) can be changed depending on the location. For example, in areas where soundproofing is strongly required, a thicker film may be used.
発泡型６ａ、 ６ｂは予め所定の温度（３０〜６０℃程
度）に保温されており、この表面に塗布された溶融樹脂
は所定時間の経過後に型上で冷却固化する結果、成形面
の形状に倣った所望の表皮部素材７が得られる。The foaming molds 6a and 6b are kept at a predetermined temperature (approximately 30 to 60°C) in advance, and the molten resin applied to the surface is cooled and solidified on the mold after a predetermined period of time, and as a result, the shape of the molding surface changes. A desired patterned skin material 7 is obtained.
上記のようにして表皮部素材７の成形が完了したら、ス
プレーガン５を型外へ後退させ、代りにＲＩＭ機の注入
ヘッド側８を前進させ、ここからウレタン樹脂液を表皮
部素材７の上面に注入する。When the molding of the skin material 7 is completed as described above, the spray gun 5 is moved back out of the mold, and the injection head side 8 of the RIM machine is advanced instead, and the urethane resin liquid is applied to the upper surface of the skin material 7. Inject into.
そして、注入が完了したら、直ちに型６ａ、６ｂを閉じ
、所定温度に保持して型内で発泡させる。Immediately after the injection is completed, the molds 6a and 6b are closed, and the temperature is maintained at a predetermined temperature to cause foaming within the molds.
しかして、所定時間の経過後に型を開けば、表皮部９に
パッド部１０が積層された成形品が取出される。しかる
後は、トリミングエ稈等の後処理工程を経て製品として
のインシュレータとなる。When the mold is opened after a predetermined period of time has elapsed, a molded product in which the pad part 10 is laminated on the skin part 9 is taken out. After that, it undergoes post-processing steps such as trimming and culm, and becomes an insulator as a product.
なお、本例では表皮部素材７を成形した後にパッド部１
０をＩｉ層させる手順を示したが、これとは逆にパッド
部を予め成形しておき、その−面側に溶融樹脂を吹付け
て表皮部を積層させる手順によっても良い。この場合に
は、パッド部の一面側が表皮部に対する成形面となるわ
けである。Note that in this example, the pad portion 1 is molded after the skin portion material 7 is molded.
Although the procedure for forming the Ii layer of 0 is shown, the procedure may be reversed by forming the pad portion in advance, spraying molten resin on the negative side of the pad portion, and laminating the skin portion. In this case, one side of the pad portion becomes the molding surface for the skin portion.
（発明の効果） 本発明の効果は次のようである。(Effect of the invention) The effects of the present invention are as follows.
本発明では、シート化するための工程を経ることなく、
溶融混線状態にある樹脂を、直接成形面に吹付けるよう
にしたため、工程数の短縮化が図れる。また、従来と異
なり、プレス圧に依ることもなく、成形面に対する良好
な追従性が得られることから、大型のプレス装置も不要
であり、この意味から設備の省力化を図ることができ、
結果的に製品コストの低減を期待できる。In the present invention, without going through the process of forming into a sheet,
Since the resin in a molten cross-wire state is sprayed directly onto the molding surface, the number of steps can be shortened. In addition, unlike conventional methods, it does not rely on press pressure and provides good followability to the molding surface, so large press equipment is not required, and in this sense, equipment labor can be saved.
As a result, we can expect a reduction in product costs.
第１図から第３図はそれぞれ本例の成形手順の概略を示
す断面図、第４図から第７図はそれぞれ従来の製造手順
の概略を示す断面図である。
５・・・スプレーガン
６ａ、６ｂ・・・発泡型
９・・・表皮部
１０・・・パッド部FIGS. 1 to 3 are cross-sectional views schematically showing the molding procedure of this example, and FIGS. 4 to 7 are cross-sectional views schematically showing the conventional manufacturing procedure, respectively. 5...Spray guns 6a, 6b...Foam mold 9...Skin part 10...Pad part
Claims (1)
タの製造方法であって、前記表皮部は熱可塑性樹脂材に
無機フィラーを混合し、この無機フィラー充填樹脂を加
熱して溶融状態とし、この溶融状態のまま前記無機フィ
ラー充填樹脂より低い温度に保持された成形面に対し吹
付け塗布し、この成形面上で冷却固化させることにより
所定形状に成形されることを特徴とするインシュレータ
における表皮部の製造方法。A method of manufacturing an insulator in which a pad part is laminated on one surface of a skin part, the skin part is made by mixing an inorganic filler with a thermoplastic resin material, heating the inorganic filler-filled resin to melt it, and melting the inorganic filler into a molten state. The skin portion of an insulator is formed into a predetermined shape by spraying the inorganic filler-filled resin onto a molding surface maintained at a lower temperature than the inorganic filler-filled resin, and cooling and solidifying the resin on the molding surface. Production method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63058894A JPH01232009A (en) | 1988-03-12 | 1988-03-12 | Manufacture of skin part in insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63058894A JPH01232009A (en) | 1988-03-12 | 1988-03-12 | Manufacture of skin part in insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01232009A true JPH01232009A (en) | 1989-09-18 |
| JPH0433613B2 JPH0433613B2 (en) | 1992-06-03 |
Family
ID=13097496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63058894A Granted JPH01232009A (en) | 1988-03-12 | 1988-03-12 | Manufacture of skin part in insulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01232009A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210757A (en) * | 2001-01-17 | 2002-07-30 | Honda Motor Co Ltd | Method for manufacturing skinned foamed molded article |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5427051A (en) * | 1977-07-28 | 1979-03-01 | Teijin Ltd | Production of bulky yarn |
| JPS58119861A (en) * | 1982-01-12 | 1983-07-16 | 日本特殊塗料株式会社 | Manufacture of molding sound insulating material |
| JPS62260812A (en) * | 1986-05-07 | 1987-11-13 | Sanyo Chem Ind Ltd | Skinning agent and use |
-
1988
- 1988-03-12 JP JP63058894A patent/JPH01232009A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5427051A (en) * | 1977-07-28 | 1979-03-01 | Teijin Ltd | Production of bulky yarn |
| JPS58119861A (en) * | 1982-01-12 | 1983-07-16 | 日本特殊塗料株式会社 | Manufacture of molding sound insulating material |
| JPS62260812A (en) * | 1986-05-07 | 1987-11-13 | Sanyo Chem Ind Ltd | Skinning agent and use |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210757A (en) * | 2001-01-17 | 2002-07-30 | Honda Motor Co Ltd | Method for manufacturing skinned foamed molded article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0433613B2 (en) | 1992-06-03 |
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