JPH0618723B2 - Manufacturing method of molded body with skin material - Google Patents
Manufacturing method of molded body with skin materialInfo
- Publication number
- JPH0618723B2 JPH0618723B2 JP63123710A JP12371088A JPH0618723B2 JP H0618723 B2 JPH0618723 B2 JP H0618723B2 JP 63123710 A JP63123710 A JP 63123710A JP 12371088 A JP12371088 A JP 12371088A JP H0618723 B2 JPH0618723 B2 JP H0618723B2
- Authority
- JP
- Japan
- Prior art keywords
- skin material
- mold
- molten resin
- molded body
- resin
- 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
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
- B29C45/1418—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 inserts being deformed or preformed, e.g. by the injection pressure
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
- B29C45/561—Injection-compression moulding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- 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、装飾用やクッション用のための表皮材を表
面に取付けた自動車用内装トリム等用の成形体の製造方
法に関する。Description: TECHNICAL FIELD The present invention relates to a method for producing a molded article for an automobile interior trim or the like having a surface material for decoration or cushioning attached to the surface thereof.
《従来の技術》 従来、装飾用やクッション用のための表皮材を表面に取
付けた自動車用内装トリム等の成形体がある。<< Prior Art >> Conventionally, there is a molded article such as an automobile interior trim having a surface material for decoration or cushioning attached to the surface.
このような成形体の製造方法としては、特開昭６３−１
１３１２号公報に開示されているものがある。この公報
に開示されている従来の技術においては、表皮材として
のシート状加飾材は、型の成形面に設けた隔壁の内面に
沿ってその端部を立ち上がらせ、上記隔壁の頂部で係止
して位置決めするか、あるいは、真空引きによる吸着保
持にて位置決めしている。As a method for producing such a molded body, Japanese Patent Laid-Open No. 63-1
Some are disclosed in Japanese Patent No. 1312. In the conventional technique disclosed in this publication, a sheet-shaped decorating material as a skin material has its end portion raised along the inner surface of the partition wall provided on the molding surface of the mold, and is engaged at the top of the partition wall. Positioning is performed by stopping or positioning by suction holding by vacuuming.
《発明が解決しようとする課題》 しかしながら、上記した従来の技術においては、表皮材
の位置決め作業が煩雑となるとともに構造が複雑となる
という問題点がある。<< Problems to be Solved by the Invention >> However, in the above-described conventional technique, there is a problem that the work of positioning the skin material becomes complicated and the structure becomes complicated.
この発明は、このような事情に鑑みなされたもので、そ
の目的とするところは、表皮材の一側から型内に溶融樹
脂を送り込みこの樹脂圧で型間にて上記表皮材を押し付
けて位置決めし、しかる後、型内の上記溶融樹脂にプレ
ス成形を施すようにして、作業性の向上、構造の簡略化
等を図った表皮材付成形体の製造方法を提供することに
ある。The present invention has been made in view of such circumstances, and an object thereof is to send a molten resin from one side of a skin material into a mold and press the skin material between the molds by the resin pressure to perform positioning. Then, the molten resin in the mold is then subjected to press molding to provide a method for manufacturing a molded article with a skin material, which improves workability and simplifies the structure.
《課題を解決するための手段》 上記目的を達成するために、この発明の方法は、上型あ
るいは下型の所定箇所に表皮材を配置して上記上型と上
記下型とを所定の間隔に保持するとともに、上記表皮材
の一側から型内に溶融樹脂を送り込みこの樹脂圧で型間
にて上記表皮材を押し付けて位置決めし、しかる後、型
内の上記溶融樹脂にプレス成形を施すことを特徴とする
ものである。<< Means for Solving the Problem >> In order to achieve the above object, the method of the present invention is to arrange a skin material at a predetermined position of the upper mold or the lower mold so that the upper mold and the lower mold have a predetermined distance. The molten resin is fed into the mold from one side of the skin material while being held in place, and the skin material is pressed and positioned between the molds by this resin pressure, and then the molten resin in the mold is subjected to press molding. It is characterized by that.
《作用》 この発明の方法によれば、表皮材の所定の位置に配置す
るだけで、後は成形体成形用の溶融樹脂を送り込んでこ
の溶融樹脂の樹脂圧で上記表皮材を型に押し付けて位置
決めするので、表皮材の位置決めのための特別な機構は
何等必要とせず、極めて簡単な構造の下で、しかも作業
性に優れた方法で表皮材付成形体が得られる。<< Operation >> According to the method of the present invention, by simply arranging the skin material at a predetermined position, the molten resin for molding the molded body is fed and the skin material is pressed against the mold by the resin pressure of the molten resin. Since the positioning is performed, no special mechanism for positioning the skin material is required, and the molded body with the skin material can be obtained with a method having an extremely simple structure and excellent workability.
《実施例の説明》 以下、この発明に係る実施例を第１図〜第８図に基づい
て説明する。<< Description of Embodiments >> Embodiments according to the present invention will be described below with reference to FIGS.
第１図〜第７図において、まず、下型１の所定箇所とし
ての木目込み溝外周に合わせて表皮材２を単に載置する
ようにして配置する（第１図および第４図参照）。表皮
材２としては、合成樹脂シート，織布，不織布，編布，
カーペットおよびこれらの材料の複合積層シート等が適
用される。In FIGS. 1 to 7, first, the skin material 2 is arranged so as to be simply placed in conformity with the outer periphery of the wood grain groove as a predetermined portion of the lower mold 1 (see FIGS. 1 and 4). As the skin material 2, synthetic resin sheet, woven cloth, non-woven cloth, knitted cloth,
Carpets and composite laminated sheets of these materials are applied.
次いで、上型３を下降させて下型１と所定の間隔（例え
ば３〜５ｍｍ）になったときに上型３を停止させ、下型
１の側に設けられた溶融樹脂供給用成形機４からオレフ
ィン系樹脂，ＡＢＳ樹脂等の熱可塑性樹脂の溶融樹脂５
をホットランナ６を介して送り込み、この樹脂圧で表皮
材２の一側としての裏側よりこの表皮材２を上型３に押
し付け位置決め固定する（第２図，第５図および第６図
参照）。この溶融樹脂５の供給圧は射出成形時の射出圧
３００〜６００ｋｇ／ｃｍ２に比べてかなり低く、５０
〜１５０ｋｇ／ｃｍ２ほどでよい。Next, the upper mold 3 is lowered, and when the predetermined distance (for example, 3 to 5 mm) from the lower mold 1 is reached, the upper mold 3 is stopped and the molding machine 4 for supplying molten resin provided on the lower mold 1 side. To molten resin 5 of thermoplastic resin such as olefin resin and ABS resin
Is fed through the hot runner 6, and the resin pressure presses the skin material 2 against the upper die 3 from the back side as one side of the skin material 2 to fix and position it (see FIGS. 2, 5, and 6). . The supply pressure of the molten resin 5 is considerably lower than the injection pressure of 300 to 600 kg / cm 2 at the time of injection molding.
It may be about 150 kg / cm 2 .
所定量の溶融樹脂５を型内に注入完了後か、あるいは注
入完了前から上型３を下降させて上記溶融樹脂５にプレ
ス成形を施す（第３図および第７図参照）。この上型３
による型閉じにより上記溶融樹脂５は所定形状のキャビ
ティ内に行き渡り、その後は冷却して脱型すれば、表皮
材２により所定箇所に加飾等が施された成形体７が得ら
れる。After the injection of a predetermined amount of the molten resin 5 into the mold, or before the completion of the injection, the upper mold 3 is lowered to press-mold the molten resin 5 (see FIGS. 3 and 7). This upper mold 3
The molten resin 5 is spread into the cavity having a predetermined shape by closing the mold by, and then cooled and removed from the mold, whereby a molded body 7 in which a predetermined portion is decorated with the skin material 2 is obtained.
上記のような表皮材付成形体の製造方法によれば、特別
な表皮材の位置決め機構を必要とせず単なる成形体の製
造過程中の１工程にて表皮材の位置決めが果せるので、
構造の簡略化、作業性の向上等を図ることができる。According to the method for manufacturing a molded body with a skin material as described above, the positioning of the skin material can be achieved in one step during the simple manufacturing process of the molded body without requiring a special mechanism for positioning the skin material.
It is possible to simplify the structure and improve workability.
第８図はこの発明に係る他の実施例を示したもので、表
皮材２を上型３側に配置した例である。この場合も前述
した実施例と同等の作用，効果を奏することは勿論であ
る。FIG. 8 shows another embodiment according to the present invention, which is an example in which the skin material 2 is arranged on the upper mold 3 side. In this case as well, it is needless to say that the same actions and effects as those of the above-described embodiment are exhibited.
《効果》 以上述べたように、この発明の方法によれば、上型ある
いは下型の所定箇所に表皮材を配置して上記上型と上記
下型とを所定の間隔に保持するとともに、上記表皮材の
一側から型内に溶融樹脂を送り込みこの樹脂圧で型間に
て上記表皮材を押し付けて位置決めし、しかる後、型内
の上記溶融樹脂にプレス成形を施すようにしたので、表
皮材の位置決めは特別な機構を設けることなく、単に型
に配置するだけでなされ、構造の簡略化および作業性の
向上等の効果が得られる。<< Effect >> As described above, according to the method of the present invention, the skin material is arranged at a predetermined position of the upper mold or the lower mold to hold the upper mold and the lower mold at a predetermined distance, and The molten resin was fed into the mold from one side of the skin material, and the skin pressure was used to press and position the skin material between the molds.After that, the molten resin in the mold was press-molded. The positioning of the material is performed by simply disposing it in the mold without providing a special mechanism, and effects such as simplification of the structure and improvement of workability can be obtained.
第１図〜第７図はこの発明に係る一実施例を示すもの
で、第１図は初期工程の説明図、第２図は中間工程の説
明図、第３図は終期工程の説明図、第４図は初期工程の
要部の説明図、第５図は中間工程の要部の説明図、第６
図は中間工程の要部の説明図、第７図は終期工程の要部
の説明図、第８図は他の実施例の初期工程の説明図であ
る。 １……下型 ２……表皮材 ３……上型 ５……溶融樹脂 ７……成形体1 to 7 show an embodiment according to the present invention. FIG. 1 is an explanatory view of an initial step, FIG. 2 is an explanatory view of an intermediate step, and FIG. 3 is an explanatory view of a final step. FIG. 4 is an explanatory view of a main part of an initial process, FIG. 5 is an explanatory view of a main part of an intermediate process, and FIG.
FIG. 8 is an explanatory view of the main part of the intermediate step, FIG. 7 is an explanatory view of the main part of the final step, and FIG. 8 is an explanatory view of the initial step of another embodiment. 1 ... Lower mold 2 ... Skin material 3 ... Upper mold 5 ... Molten resin 7 ... Molded body
Claims (1)
置して上記上型と上記下型とを所定の間隔に保持すると
ともに、上記表皮材の一側から型内に溶融樹脂を送り込
みこの樹脂圧で型間にて上記表皮材を押し付けて位置決
めし、しかる後、型内の上記溶融樹脂にプレス成形を施
すことを特徴とする表皮材付成形体の製造方法。1. A skin material is arranged at a predetermined position of an upper mold or a lower mold to hold the upper mold and the lower mold at a predetermined distance, and a molten resin is introduced into the mold from one side of the skin material. A method for producing a molded article with a skin material, comprising: pressing the above skin material between the molds by the resin pressure and positioning the resin, and then performing press molding on the molten resin in the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63123710A JPH0618723B2 (en) | 1988-05-20 | 1988-05-20 | Manufacturing method of molded body with skin material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63123710A JPH0618723B2 (en) | 1988-05-20 | 1988-05-20 | Manufacturing method of molded body with skin material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01291912A JPH01291912A (en) | 1989-11-24 |
| JPH0618723B2 true JPH0618723B2 (en) | 1994-03-16 |
Family
ID=14867439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63123710A Expired - Lifetime JPH0618723B2 (en) | 1988-05-20 | 1988-05-20 | Manufacturing method of molded body with skin material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618723B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60212312A (en) * | 1984-04-06 | 1985-10-24 | Toyota Motor Corp | Manufacture of laminated molding |
| JPH0611501B2 (en) * | 1986-06-17 | 1994-02-16 | 住友化学工業株式会社 | Press molding method for multilayer molded products |
-
1988
- 1988-05-20 JP JP63123710A patent/JPH0618723B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01291912A (en) | 1989-11-24 |
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