JPS60109814A - Preparation of uneven resin molded piece - Google Patents
Preparation of uneven resin molded pieceInfo
- Publication number
- JPS60109814A JPS60109814A JP21851483A JP21851483A JPS60109814A JP S60109814 A JPS60109814 A JP S60109814A JP 21851483 A JP21851483 A JP 21851483A JP 21851483 A JP21851483 A JP 21851483A JP S60109814 A JPS60109814 A JP S60109814A
- Authority
- JP
- Japan
- Prior art keywords
- cloth
- uneven
- resin
- mold
- polyester
- 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
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2713/00—Use of textile products or fabrics for preformed parts, e.g. for inserts
Abstract
Description
【発明の詳細な説明】
この発明は、凹凸形状の樹脂本体に不織布が接着された
樹脂成形品の製造法に関し、たとえば、片面に不織布が
接着嘔れたドアトリムなど自動車用内装板の製造に適用
できる樹脂成形品の製造方法に係わるものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a resin molded product in which a non-woven fabric is adhered to a resin body having an uneven shape, and is applied, for example, to the manufacture of interior panels for automobiles such as door trims in which a non-woven fabric is not adhered to one side. This relates to a method for manufacturing resin molded products.
従来、樹脂本体の表向に不織布が接ｆ＋’ｔさ八た凹凸
差のない単純形状の樹脂成形品は、射出成形によシ樹脂
本体の成形と同時に不織布の接着が可能でめシ、実施さ
扛ているものでりる。しかしながら、凹凸形状をなすも
のの射出成形においては、不織布がＩＩＺ形凹部の凹凸
形状になじまず、不織布の接着不良となったシ、キレツ
、シワ、ヤプレなどが生じ良好な成形品が得られない欠
点があった。Conventionally, resin molded products with a simple shape with no difference in unevenness, such as a nonwoven fabric in contact with the surface of a resin body, have been made by injection molding, which allows the nonwoven fabric to be bonded at the same time as the resin body is molded. It's the one that's in trouble. However, in injection molding of a material with an uneven shape, the nonwoven fabric does not adapt to the uneven shape of the IIZ-shaped recess, and the nonwoven fabric has defects such as cracks, cracks, wrinkles, and folds that occur due to poor adhesion of the nonwoven fabric, making it difficult to obtain a good molded product. was there.
このため凹凸差のある形状のものは、予じめ所定の凹凸
形状に不織布を成形し、これを成形型に装着した後に、
本体を射出成形する面倒な工程にて行なわれている欠点
があった。For this reason, for products with uneven shapes, the nonwoven fabric is molded into a predetermined uneven shape in advance, and after this is attached to a mold,
The drawback was that the main body was injection molded, which was a cumbersome process.
本発明の目的は、上述した従来欠点を解消しようとした
ものであって、凹凸形状の樹脂本体に不織布が接着成形
された樹脂成形品を射出ｌｉｄ形により同時成形し得る
、樹脂成形品の製造法を提供することに＝５る。また、
本発明の他の目的は、凹凸差の大きい、いわゆる探しば
シ形状のものでちっても、不織布の接着成形とともに凹
凸形状の樹脂本体が射出成形し得る、凹凸状樹脂成形品
の製造法を提供することに必る。An object of the present invention is to solve the above-mentioned conventional drawbacks, and to produce a resin molded product in which a resin molded product in which a nonwoven fabric is adhesively molded onto an uneven resin body can be simultaneously molded using an injection lid mold. = 5 to provide law. Also,
Another object of the present invention is to provide a method for producing an uneven resin molded article, in which a resin body having an uneven shape can be injection molded together with adhesive molding of a nonwoven fabric, even if the article has a so-called dovetail shape with a large difference in unevenness. It is necessary to provide.
次に不発明の犬施例を、図面を参照して説明する。図に
おいて、１は射出成形用の凹型であって、との合せ面４
には所定の凹部２が形成され、該凹部２には合成樹脂を
圧入する注入孔５が形成されている。６は前記凹型１に
組合せする凸型で心って、その合せ面９には所定の凸部
７が形成８れている。なお、凹型１及び凸型６は図示し
ない支持部材にて支持されていて適宜に移動ｉＪ能でお
る。Next, an inventive dog embodiment will be described with reference to the drawings. In the figure, 1 is a concave mold for injection molding, and the mating surface 4 with
A predetermined recess 2 is formed in the recess 2, and an injection hole 5 for press-fitting the synthetic resin is formed in the recess 2. Reference numeral 6 denotes a convex mold to be combined with the concave mold 1, and a predetermined convex portion 7 is formed 8 on the mating surface 9 thereof. The concave mold 1 and the convex mold 6 are supported by a support member (not shown) and can be moved as appropriate.
しかして成形面６．８を対向させて配置した凹型１及び
凸型６間には成形面６．８を覆う大きさの不織布が配置
ちれ図示しない支持部材にて支持される。前記不織布と
しては伸縮性を有するステッチクロス１０が使用される
。A nonwoven fabric large enough to cover the molding surface 6.8 is disposed between the concave mold 1 and the convex mold 6, which are arranged with the molding surfaces 6.8 facing each other, and is supported by a support member (not shown). A stretchable stitch cloth 10 is used as the nonwoven fabric.
ステッチクロス１０はポリエステルバインダーを利用し
たポリエステルステーブル不織布をポリエステルフィラ
メントでステッチしたポリエステ／Ｉ／１００％よシな
るものでるる。このものは通常のポリエステ１ｖ繊維（
融点２５９〜２６６℃）に低ｔ、ｈＡ点（融点１１０℃
〜２００℃）のポリエステル繊維を１０〜５０％配合し
てステッチもれてぃて、目付量は５ｏ〜５００ ｆ／ｖ
ｌでらる。なお、内装板久どの樹脂成形品としての風合
上からは目付量が２００〜６５０ｇ屑程度のものが望ま
しい。The stitch cloth 10 is made of 100% polyester/I/100% polyester stable nonwoven fabric using a polyester binder and stitched with polyester filaments. This is normal polyester 1v fiber (
Low t, hA point (melting point 110℃)
-200℃) 10-50% polyester fiber is blended with stitch leakage, and the basis weight is 5o-500 f/v.
I can get it. In addition, from the viewpoint of the feel of the resin-molded product such as the interior board, it is desirable that the basis weight be about 200 to 650 g of scrap.
ステッチクロス１０における低融点ポリエステル繊維は
、加熱時の伸びが大きいため曲率半径の小さい凹凸部に
よくなじみ、高一点のポリエステル繊維は形状保持性が
高いので加熱成形の際に極めて都合がよいものである。The low melting point polyester fiber in the stitch cloth 10 has a large elongation when heated, so it adapts well to irregularities with a small radius of curvature, and the high point polyester fiber has high shape retention, making it extremely convenient for heat forming. be.
次いで、凹型１の四部２と、凸型６の凸部７とを組合せ
、ステッチクロス１０が介装された状態の成形凹部２Ａ
を形成し、凹型１の注入孔５には間服注入機の射出口１
１を接続（第２図参照）して溶醐（状態の合成樹脂を射
出しく第５図参１１６）、冷却し、脱型して成形品１３
Ａ’ｉ＝得る。成形品１６Ａは射出された＃融樹脂１２
と、溶融樹脂１２に成形とともに接ｆｍ Ｇれた成形ク
ロスＩＯＡとよシなる。Next, the four parts 2 of the concave mold 1 and the convex part 7 of the convex mold 6 are combined to form a molded concave part 2A with the stitch cloth 10 interposed therein.
, and the injection hole 5 of the concave mold 1 has the injection port 1 of the dressing injection machine.
1 (see Fig. 2), inject the molten synthetic resin (see Fig. 5 116), cool it, and demold it to form the molded product 13.
A'i = get. Molded product 16A is injected #molten resin 12
This results in a molded cloth IOA that comes into contact with the molten resin 12 during molding.
しかして、本例では融点１２０℃のポリエステｌしと、
融点２６０℃のポリエステルとの、８０：２０の混合品
をステッチ組成がチェインコードＧａｕｇｅ／Ｃｏｕｒ
ｓｅ ＝ ８５／２１でステッチした日付Ｍ２Ｏ０ｆｌ
／ｄのステッチクロス「オリビア」、（ユニチカＫＫＩ
Ｉ造、曲標名）を使用し、成形四部２人には樹脂温２２
０℃のポリプロピレンを射出圧１５０ ｋＶ／Ｃｄで射
出し、冷却６０秒後に凹型１及び凸型６を開いて成形品
１３Ａ’ｌｒ取出した。取出した成形品１６Ａは片面の
全体にステッチクロス１０が接ｆａ 成形され、かつス
テッチクロス１０がハシ：形凹部２Ａの形状になじみ、
曲げ部分においても樹脂に追従しており、キレツ、シワ
、ヤプレの部分のない良好なものであった。次いでｌｉ
’７形品１３Ａにおける、注入孔５跡の戻出樹脂部１２
Ｂ及びｔ′Ｌ１脂本体１２Ａよシはみ出したステッチク
ロス１０の部分を切除して所定形の樹脂成形品１６−９
ｃ得る。Therefore, in this example, polyester with a melting point of 120°C,
Stitched 80:20 mixture with polyester with a melting point of 260°C, chain cord Gauge/Cour
Date stitched with se = 85/21 M2O0fl
/d stitch cross “Olivia”, (Unitika KKI
I-structure, track title) was used, and the resin temperature was 22 for the two molding parts.
Polypropylene at 0° C. was injected at an injection pressure of 150 kV/Cd, and after 60 seconds of cooling, the concave mold 1 and the convex mold 6 were opened to take out the molded product 13A'lr. The removed molded product 16A is molded with a stitch cloth 10 on the entire one side, and the stitch cloth 10 conforms to the shape of the hash-shaped recess 2A.
It followed the resin even in the bending part, and was in good condition with no cracks, wrinkles, or uneven parts. then li
Return resin part 12 of injection hole 5 trace in '7 type product 13A
The part of the stitch cloth 10 that protrudes from the B and t'L1 fat body 12A is cut out to form a resin molded product 16-9 of a predetermined shape.
get c.
本例のステッチクロス１０は縦横に伸縮性を有するもの
であるので樹脂の射出成形の際に成形四部２人内の凹凸
形状に通従し、成形四部２人が凹凸形状の大きい、深絞
シのもので必っても、成形間に充分に追従し樹脂本体に
Ｊな着された樹脂成形品を得ることができる。Since the stitch cloth 10 of this example has elasticity in the vertical and horizontal directions, it conforms to the uneven shape of the two molded parts during resin injection molding, and the two molded parts are formed into a deep-drawn fabric with large irregularities. Even if it is not necessary, it is possible to obtain a resin molded product that is fully adhered to the resin body during molding and is adhered to the resin body.
得られた樹脂成形品１３は成形クロス１０Ａ部分の風合
いが良好であシ、自動車用の内装板とされる。The obtained resin molded product 13 has a good texture in the molded cloth 10A portion, and is used as an interior panel for an automobile.
以上説明したように不発明は、凹凸形状の樹脂本体の凹
凸面に不織布が接着された樹脂成形品を製造するに際し
、伸縮性を有するステッチクロスを前記不織布として用
い、該不織布を成形型の凹凸形状の成形凹部内に介在せ
しめ、しかる後に前記成形凹部内に合成樹脂を射出成形
するようにしたため、本発明の前記した所期の目的が達
成されるもので４うる。すなわち、本発明においては融
府約２６０℃のポリエステ）Ｖ繊維に融点約１１０〜２
００℃のポリエステ／Ｉ／ｌｊ＃維約１０〜５０％を配
合せしめた伸縮性の艮好なステッチクロスを前記不織布
として使用するようにしたので、成形型の成型凹部内に
介装１：させた不織布は合成樹脂の射出成形の際の圧入
樹脂によって成形四部の凹凸状成形面に密５Ｎされ、密
着状態にて合成樹脂と接着ネれ、ステッチクロスが散着
成形された凹凸状樹１１ｉｉ成形品が得られるものであ
る。そしてステッチクロスは伸酪性を有するものでのる
ため、成形四部の凹凸状成形面に密＠ ｔｉＪ能であり
、凹凸差の大きい探しぼシの射出成形においても、ステ
ッチクロスは成形面によくなじみ、ステッチクロスのキ
レツ、シワ、ヤプレのない良好な凹凸状樹脂成形品が得
られる。しかして、本発明によｎば射出成形により、ス
テッチクロスを同時成形し得るので、予じめ不織布を成
形した後に本体を成形する従来工程に較べ、工程数が省
略でき都合がよい。As explained above, the invention provides that when manufacturing a resin molded product in which a nonwoven fabric is adhered to the uneven surface of a resin body having an uneven shape, a stretchable stitch cloth is used as the nonwoven fabric, and the nonwoven fabric is applied to the uneven surface of a mold. Since the synthetic resin is inserted into the shaped recess and then injection molded into the molded recess, the above-mentioned objective of the present invention can be achieved. That is, in the present invention, polyester (V) fiber with a melting point of about 260°C has a melting point of about 110-2
Since a stretchable and beautiful stitch cloth containing about 10 to 50% of polyester/I/lj# fiber at 00°C was used as the nonwoven fabric, the interposition 1 was placed in the molding recess of the mold. The non-woven fabric was tightly bonded to the uneven molding surface of the four molded parts by press-fitting resin during injection molding of synthetic resin, and in a close contact state, it was bonded to the synthetic resin and stitched cloth was scatter-molded to form an uneven tree 11ii. It is something that you can get. In addition, since the stitch cloth is made of stretchable material, it is able to fit tightly onto the uneven molding surface of the four molding parts, and even in injection molding of a search pad with a large difference in unevenness, the stitch cloth fits well on the molding surface. A good uneven resin molded product is obtained that is free from blending, stitch cross cracks, wrinkles, and sagging. According to the present invention, the stitch cloth can be simultaneously molded by injection molding, which is convenient because the number of steps can be omitted compared to the conventional process of molding the main body after molding the nonwoven fabric in advance.
園は本発明の実施例を示すものであって、第１図は射出
成形用の凹型及び凸型間にステッチクロスを配置した状
態の準備工程図、第２図はステッチクロス介在状態にお
いて、凹型及び凸型を組合せて成形四部を形成した型組
み工程図、第６図は成形凹部に合成樹脂を射出する射出
工程図、＠４図は成形品を脱型した脱型工程図、第５図
は製品化さｎた成形品の形状説明図でわる。
１・・・凹型 ２・−・凹部
５・・・注入孔 ６・・・凸型
７・・・凸ｇｔ＋ １０−・ステッチクロス１０Ａ・・
・成形クロア、 １２Ａ・・・樹脂本体１６・・・樹脂
成形品 １３Ａ・・・成形品出１人 日本セキソー工業
株式会社
代理人 弁理士 岡 １）英 彦The figures show an embodiment of the present invention, in which Fig. 1 is a preparatory process diagram showing a state in which a stitch cloth is placed between a concave mold and a convex mold for injection molding, and Fig. 2 is a diagram showing a preparatory process in which a stitch cloth is placed between a concave mold and a convex mold for injection molding, and Fig. 2 shows a concave mold with a stitch cloth interposed therebetween. Figure 6 is an injection process diagram showing the injection of synthetic resin into the molding recesses, Figure 4 is a demolding process diagram showing the molded product being removed from the mold, Figure 5 is This is an explanatory diagram of the shape of the molded product that has been commercialized. 1...Concave 2--Concave 5...Injection hole 6...Convex 7...Convex gt+ 10--Stitch cloth 10A...
・Molded Croix, 12A... Resin body 16... Resin molded product 13A... Molded product 1 person Patent attorney Oka, representative of Nippon Sekiso Kogyo Co., Ltd. 1) Hidehiko
Claims (1)
成形品を製造するに際し、融点約２６０℃のポリエステ
ル繊維に融点約１１０〜２００℃のポリエステル繊維約
１０〜５０％を配合せしめた伸縮性のステッチクロスを
前記不織布として用い、該不織布を成形型の凹凸形状の
成形凹部内に介在せしめ、しかる後に前記成形凹部内に
合成樹脂を射出成形することを特徴とした凹凸状νｌｒ
ｌ脂成形品の製造法。When manufacturing a resin molded product in which a nonwoven fabric is adhered to the uneven surface of a resin body with an uneven shape, elasticity is obtained by blending about 10 to 50% polyester fiber with a melting point of about 110 to 200 degrees Celsius to polyester fiber with a melting point of about 260 degrees Celsius. The uneven stitch cloth is used as the nonwoven fabric, the nonwoven fabric is interposed in an uneven molding recess of a mold, and then a synthetic resin is injection molded into the molding recess.
A method for producing lubricant molded products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21851483A JPS60109814A (en) | 1983-11-18 | 1983-11-18 | Preparation of uneven resin molded piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21851483A JPS60109814A (en) | 1983-11-18 | 1983-11-18 | Preparation of uneven resin molded piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60109814A true JPS60109814A (en) | 1985-06-15 |
| JPH0319047B2 JPH0319047B2 (en) | 1991-03-14 |
Family
ID=16721116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21851483A Granted JPS60109814A (en) | 1983-11-18 | 1983-11-18 | Preparation of uneven resin molded piece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60109814A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04114366U (en) * | 1991-03-28 | 1992-10-08 | 美津濃株式会社 | Kyaday Batsugu |
| EP2309044A3 (en) * | 2003-05-08 | 2011-05-25 | ECIM Technologies B.V. | Method and apparatus for manufacturing vehicle parts |
-
1983
- 1983-11-18 JP JP21851483A patent/JPS60109814A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04114366U (en) * | 1991-03-28 | 1992-10-08 | 美津濃株式会社 | Kyaday Batsugu |
| EP2309044A3 (en) * | 2003-05-08 | 2011-05-25 | ECIM Technologies B.V. | Method and apparatus for manufacturing vehicle parts |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0319047B2 (en) | 1991-03-14 |
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