JPH0818341B2 - Method for manufacturing integral foam molded product - Google Patents
Method for manufacturing integral foam molded productInfo
- Publication number
- JPH0818341B2 JPH0818341B2 JP62298195A JP29819587A JPH0818341B2 JP H0818341 B2 JPH0818341 B2 JP H0818341B2 JP 62298195 A JP62298195 A JP 62298195A JP 29819587 A JP29819587 A JP 29819587A JP H0818341 B2 JPH0818341 B2 JP H0818341B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- core material
- foam
- foaming
- skin material
- 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 - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 6
- 239000006260 foam Substances 0.000 title claims description 5
- 239000011162 core material Substances 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 27
- 238000010097 foam moulding Methods 0.000 claims description 18
- 238000005187 foaming Methods 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Instrument Panels (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、発泡性樹脂が芯材および表皮材と一体に発
泡成形されてなる一体発泡成形品の製造方法に関するも
のである。Description: TECHNICAL FIELD The present invention relates to a method for producing an integrally foam-molded product in which a foamable resin is integrally foam-molded with a core material and a skin material.
（従来の技術） 従来より、この種の一体発泡成形型の製造方法とし
て、例えば特開昭60−122119号公報に開示されるよう
に、発泡成形型の下型に表皮材を、上型に芯材をそれぞ
れセットし、次いで、型締めをした後、上記発泡成形型
内に発泡性樹脂原料を注入して発泡成形するようにした
ものはよく知られている。尚、型内への発泡性樹脂原料
の注入は、型締め前に行うこともある。(Prior Art) Conventionally, as a method of manufacturing this type of integral foaming mold, as disclosed in, for example, Japanese Patent Laid-Open No. 60-122119, a lower mold of a foaming mold is provided with a skin material and an upper mold thereof. It is well known that a core material is set and then the mold is clamped, and then a foaming resin material is injected into the foaming mold for foam molding. The foaming resin material may be injected into the mold before the mold is clamped.
（発明が解決しようとする問題点） ところが、上記従来の製造方法による場合、一体発泡
成形品における芯材と表皮材との位置関係が微妙にばら
ついて、一体発泡成形品を他の製品に組み付けたとき該
製品との間にすきが生じて見映えが悪くなるなどの問題
があった。このような芯材と表皮材との位置関係のばら
つきの原因としては、上型への芯材のセットの際に生じ
るずれや上型と下型との型締めの際に生じる型同志のず
れ等によるものと考えられる。(Problems to be solved by the invention) However, in the case of the above-described conventional manufacturing method, the positional relationship between the core material and the skin material in the integrated foam-molded product is slightly deviated, and the integrated foam-molded product is assembled to another product. When this happens, there is a problem in that a gap is formed between the product and the appearance of the product, and so on. The cause of such a variation in the positional relationship between the core material and the skin material is a deviation that occurs when the core material is set in the upper mold and a deviation between the molds that occurs when the upper mold and the lower mold are clamped. It is thought to be due to the above.
本発明はかかる点に鑑みてなされたものであり、その
目的とするところは、発泡成形型の型締めの際芯材と表
皮材とが位置合わせされるようになし、もって両者の位
置関係のばらつきを防止し得る一体発泡成形品の製造方
法を提供せんとするものである。The present invention has been made in view of such a point, and its object is to align the core material and the skin material during the mold clamping of the foam molding die, so that the positional relationship between the two An object of the present invention is to provide a method for manufacturing an integrally foam-molded article that can prevent variations.
（問題点を解決するための手段） 上記目的を達成するため、本発明の解決手段は、発泡
性樹脂が芯材および表皮材と一体に発泡成形されてなる
一体発泡成形品の製造方法として、次のような構成とす
る。(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention is a method for producing an integral foam-molded article in which a foamable resin is integrally foam-molded with a core material and a skin material, The configuration is as follows.
すなわち、上記芯材として製品部以外の部分数箇所に
各々穴を有するフランジが設けられてなるものを、発泡
成形型としてその下型に上記フランジの穴に嵌合可能な
突起が設けられてなるものをそれぞれ用意する。そし
て、先ず、上記芯材を発泡成形型の上型にある程度の自
由度を持たせてセットし、表皮材を発泡成形型の下型に
セットする。しかる後、発泡成形型内に発泡性樹脂原料
を注入するとともに型締めを行って芯材および表皮材と
一体に発泡成形する。次いで、型開きをして一体発泡成
形品を発泡成形型から取り出した後、該一体発泡成形品
から表皮材の製品部以外の余分な部分と上記フランジと
を取り除くという構成にするものである。That is, the core material is provided with flanges each having a hole at several places other than the product portion, and the lower mold is provided with a protrusion capable of being fitted in the hole of the flange as a foam molding die. Prepare each one. Then, first, the core material is set in the upper mold of the foaming mold with a certain degree of freedom, and the skin material is set in the lower mold of the foaming mold. Then, the foaming resin material is injected into the foaming mold and the mold is clamped to integrally foam the core material and the skin material. Next, the mold is opened to take out the integral foam molded product from the foam molding die, and then the excess portion other than the product portion of the skin material and the flange are removed from the integral foam molded product.
（作用） 上記の構成により、本発明では、発泡成形型の型締め
の際、上型にある程度の自由度を持ってセットされた芯
材は、その製品部以外の部分数箇所に設けられたフラン
ジの穴がそれぞれ下型の突起と嵌合して下型に対して位
置決めされ、該下型にセットされた表皮材と常に所定の
位置関係を保つようになる。(Operation) With the above configuration, in the present invention, the core material set in the upper mold with a certain degree of freedom when the foam molding mold is clamped is provided in several parts other than the product part. The holes of the flanges are respectively fitted to the projections of the lower mold and positioned with respect to the lower mold, so that the skin material set in the lower mold is always kept in a predetermined positional relationship.
（実施例） 以下、本発明の実施例を図面を用いて説明する。(Example) Hereinafter, the Example of this invention is described using drawing.
第１図ないし第４図は本発明を自動車用装備品として
のクラッシュパッドの製造方法について適用した例を示
す。クラッシュパッドの製造に先立って、第１図に示す
ような芯材１を用意する。この芯材１には、本発明の特
徴点として、製品部1a以外の部分数箇所に各々穴２を有
するフランジ３が設けられている。また、第２図は上記
芯材１に対応して用意すべき発泡成形型４を示す。この
発泡成形型４は、下型５の型面5a周縁部に上記フランジ
３の穴２に嵌合可能な突起６が各フランジ３に対応した
部位数箇所に設けられているとともに、上型７の型面７
周縁部に上記下型５の各突起６（つまり芯材１の各フラ
ンジ３）に対応して穴部12が形成されている。1 to 4 show an example in which the present invention is applied to a method for manufacturing a crash pad as an automobile accessory. Prior to manufacturing the crash pad, a core material 1 as shown in FIG. 1 is prepared. This core material 1 is provided with flanges 3 each having a hole 2 at several portions other than the product portion 1a, which is a feature of the present invention. Further, FIG. 2 shows a foaming mold 4 to be prepared corresponding to the core material 1. In this foam molding die 4, projections 6 that can be fitted into the holes 2 of the flange 3 are provided in the peripheral portion of the die surface 5a of the lower die 5 at several locations corresponding to the respective flanges 3, and the upper die 7 Mold surface 7
Holes 12 are formed in the peripheral edge portion so as to correspond to the protrusions 6 of the lower die 5 (that is, the flanges 3 of the core material 1).
そして、クラッシュパッドを製造する場合、先ず初め
に、第２図に示すように、上記芯材１を発泡成形型４の
上型７に、表皮材８を下型５にそれぞれ所定の位置にセ
ットする。この際、上記芯材１は、上型７に設けられた
磁石９によって該上型７に支持され、これにより、上型
７に対しては所定のセット位置からある程度変位し得る
ように自由度を持ってセットされることになる。尚、発
泡成形型４の下型５には、図示していないが、型面5aの
コーナ部等の適宜箇所に真空ポンプに連通された複数の
真空孔が形成されていて、該下型５に表皮材８をセット
する際、上記真空ポンプの作動により表皮材８を下型５
の型面5a上に密着状態にセットし得るようになってい
る。また、表皮材８を下型５にセットする際、下型５の
各突起６に対応して表皮材８（製品部以外の余分な箇
所）に孔10を開け、その孔10を通して下型５の突起６が
上方に突出するようにする。When manufacturing a crash pad, first, as shown in FIG. 2, the core material 1 is set in the upper mold 7 of the foam molding die 4 and the skin material 8 is set in the lower mold 5 at predetermined positions. To do. At this time, the core material 1 is supported by the upper die 7 by the magnet 9 provided on the upper die 7, so that the core material 1 can be displaced to a certain degree from the predetermined set position with respect to the upper die 7. Will be set. Although not shown, the lower mold 5 of the foam molding mold 4 has a plurality of vacuum holes communicating with a vacuum pump formed at appropriate places such as a corner portion of the mold surface 5a. When the skin material 8 is set on the lower surface of the lower mold 5 by the operation of the above vacuum pump.
It can be set in close contact with the mold surface 5a. Further, when the skin material 8 is set in the lower mold 5, a hole 10 is made in the skin material 8 (extra part other than the product part) corresponding to each protrusion 6 of the lower mold 5, and the lower mold 5 is passed through the hole 10. The projection 6 of the above is projected upward.
しかる後、上記下型５のキャビティ内に発泡性樹脂原
料としてのウレタン樹脂11を注入する。続いて、発泡成
形型４の上型７と下型５との型締めをする。この型締め
の際、第３図に示すように、上型７にある程度の自由度
を持ってセットされた芯材１は、その製品部以外の部分
数箇所に設けられたフランジ3,3,…の穴2,2,…がそれぞ
れ下型５の突起6,6,…と嵌合して下型５対して位置決め
され、該下型５にセットされた表皮材８と常に所定通り
の位置関係を保つようになる。そして、このような状態
でもってウレタン樹脂11と芯材１および表皮材８とを一
体に発泡成型する。Then, a urethane resin 11 as a foaming resin material is injected into the cavity of the lower mold 5. Subsequently, the upper mold 7 and the lower mold 5 of the foaming mold 4 are clamped. At the time of this mold clamping, as shown in FIG. 3, the core material 1 set in the upper mold 7 with a certain degree of freedom has the flanges 3, 3 provided on several parts other than the product part. The holes 2, 2, ... of the lower mold 5 are fitted to the protrusions 6, 6, ... of the lower mold 5 to be positioned with respect to the lower mold 5, and the skin material 8 set in the lower mold 5 and the position always in a predetermined position. Get in touch with each other. Then, in such a state, the urethane resin 11, the core material 1 and the skin material 8 are integrally foam-molded.
上記の発泡成型が終わった後、発泡成形型４の型開き
をして一体発泡成形品たるクラッシュパッドを発泡成形
型４から取り出す。次いで、第４図に示すように、上記
クラッシュパッドから表皮材の製品部以外の余分な部分
8aと芯材１のフランジ3,3,…とを取り除く。以上によっ
て、所定形状のクラッシュパッドＡが製造される。After the above foam molding is completed, the foam molding die 4 is opened and the crash pad, which is an integral foam molding, is taken out from the foam molding die 4. Then, as shown in FIG. 4, an extra portion other than the product portion of the skin material from the crash pad.
8a and the flanges 3, 3, ... Of the core material 1 are removed. Through the above steps, the crash pad A having a predetermined shape is manufactured.
そして、このような方法で製造されたクラッシュパッ
ドＡは、芯材１と表皮材８との位置関係が常に所定通り
にあるので、製品精度が高いものとなり、車体への組付
け状態で他の組付け製品との間に隙間などを生じること
はなく、見映えの向上を図ることができる。In the crash pad A manufactured by such a method, since the positional relationship between the core material 1 and the skin material 8 is always in a predetermined manner, the product accuracy is high, and the crash pad A can be installed in the vehicle body in a different state. There is no gap between the assembled product and the product, and the appearance can be improved.
（発明の効果） 以上の如く、本発明における一体発泡成形品の製造方
法によれば、発泡成形型の型締めの際、上型にセットさ
れた芯材が下型により位置決めされるので、一体発泡成
形品における芯材と表皮材との位置関係のばらつきを防
止することができ、製品精度の向上を図ることができ
る。(Effects of the Invention) As described above, according to the method for producing an integral foam-molded product of the present invention, the core material set in the upper mold is positioned by the lower mold when the foam molding mold is clamped. It is possible to prevent variations in the positional relationship between the core material and the skin material in the foam-molded product, and to improve product accuracy.
図面は本発明の実施例に係わるクラッシャパッドの製造
方法を説明するためのもので、第１図は芯材の斜視図、
第２図は発泡成形型に対して芯材および表皮材をセット
した状態を示す断面図、第３図は発泡成形型の型締め状
態を示す断面図、第４図はクラッシュパッドからその製
品部以外の余分な部分を取り除く状態を示す斜視図であ
る。 １……芯材、２……穴、３……フランジ、４……発泡成
形型、５……下型、６……突起、７……上型。The drawings are for explaining a method for manufacturing a crusher pad according to an embodiment of the present invention. FIG. 1 is a perspective view of a core material,
FIG. 2 is a sectional view showing a state where a core material and a skin material are set in a foam molding die, FIG. 3 is a sectional view showing a mold clamping state of the foam molding die, and FIG. 4 is a crash pad to a product part thereof. It is a perspective view which shows the state which removes the excess parts other than. 1 ... Core material, 2 ... Hole, 3 ... Flange, 4 ... Foaming mold, 5 ... Lower mold, 6 ... Protrusion, 7 ... Upper mold.
Claims (1)
泡成形されてなる一体発泡成形品の製造方法であって、
上記芯材として製品部以外の部分数箇所に各々穴を有す
るフランジが設けられてなるものを、発泡成形型として
その下型に上記フランジの穴に嵌合可能な突起が設けら
れてなるものをそれぞれ用意し、上記芯材を発泡成形型
の上型にある程度の自由度を持たせてセットし、表皮材
を発泡成形型の下型にセットした後、発泡成形型内に発
泡性樹脂原料を注入するとともに型締めを行って芯材お
よび表皮材と一体に発泡成形し、次いで、型開きをして
一体発泡成形品を発泡成形型から取り出した後、該一体
発泡成形品から表皮材の製品部以外の余分な部分と上記
フランジとを取り除くことを特徴とする一体発泡成形品
の製造方法。1. A method for producing an integrally foam-molded article, wherein an expandable resin is integrally foam-molded with a core material and a skin material.
The core material is provided with flanges each having holes at several portions other than the product portion, and the foam molding die is provided with a projection capable of being fitted into the hole of the flange on the lower die thereof. Prepare each of them, set the above core material in the upper mold of the foaming mold with a certain degree of freedom, set the skin material in the lower mold of the foaming mold, and then set the foaming resin raw material in the foaming mold. After injecting and closing the mold, foam molding is performed integrally with the core material and the skin material, and then the mold is opened and the integrated foam molded product is taken out from the foam molding die. A method for manufacturing an integral foam-molded product, characterized in that an excess part other than the parts and the flange are removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62298195A JPH0818341B2 (en) | 1987-11-26 | 1987-11-26 | Method for manufacturing integral foam molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62298195A JPH0818341B2 (en) | 1987-11-26 | 1987-11-26 | Method for manufacturing integral foam molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01157814A JPH01157814A (en) | 1989-06-21 |
| JPH0818341B2 true JPH0818341B2 (en) | 1996-02-28 |
Family
ID=17856446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62298195A Expired - Fee Related JPH0818341B2 (en) | 1987-11-26 | 1987-11-26 | Method for manufacturing integral foam molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0818341B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2728597B2 (en) * | 1992-06-08 | 1998-03-18 | 西川化成株式会社 | Manufacturing method of molded panel |
| JP4580566B2 (en) * | 2001-02-01 | 2010-11-17 | 株式会社イノアックコーポレーション | Method for forming vehicle interior member |
| KR101306048B1 (en) * | 2012-01-27 | 2013-09-09 | 현대중공업 주식회사 | Portable handrail stanchion |
-
1987
- 1987-11-26 JP JP62298195A patent/JPH0818341B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01157814A (en) | 1989-06-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |