JPS6246628A - Molding of formed sound absorbing material - Google Patents
Molding of formed sound absorbing materialInfo
- Publication number
- JPS6246628A JPS6246628A JP60187563A JP18756385A JPS6246628A JP S6246628 A JPS6246628 A JP S6246628A JP 60187563 A JP60187563 A JP 60187563A JP 18756385 A JP18756385 A JP 18756385A JP S6246628 A JPS6246628 A JP S6246628A
- Authority
- JP
- Japan
- Prior art keywords
- absorbing material
- sound
- sound absorbing
- forces
- coating
- 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
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
未発明は例えば消音器の外箱、エンジンカバー等の素材
として使用する成形吸音材の成形方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method of forming a molded sound absorbing material used as a material for, for example, an outer box of a silencer, an engine cover, and the like.
（従来の技術）
消音器の外箱、エンジンカバー等は一般に鋼板或はアル
ミニウム合金にて構成されるが、これらＩヰ ごン ！
、１ 病く ４−１噂 １１ 立 梧−１４１Ｋ 杯
拳り紳 Ｌデ 内ご ス、 ナー ｋＮ −ムご
１４（願人は先に特願昭５８−１５９７７４号等とし
て、成形吸汗材によって消音器の外箱等を形成すること
を提案している。(Prior Art) The outer box of a silencer, engine cover, etc. are generally made of steel plates or aluminum alloys, but these Igon!
, 1 Sick 4-1 Rumor 11 Tachi Go - 141K Cup
14 (The applicant had previously proposed in Japanese Patent Application No. 159774/1983, etc., to form the outer box of a silencer with a molded sweat-absorbing material. .
断る成形吸音材を目的の部材形状に成形するには、繊維
マツＩ・等の吸音材に樹脂成形剤を含浸せしめた状態で
、型間にセットし、型を閉じて吸ご７材を成形するとと
もに加熱して一定の形状と１．ている。To mold the sound absorbing material into the desired member shape, impregnate the sound absorbing material such as fiber pine I with a resin molding agent, set it between molds, close the mold, and mold the absorber 7 material. At the same time, it is heated to give a certain shape and 1. ing.
一方、従来から成形吸音材以外の材料、例えばプラスチ
ックからなる成形体の表面に、着色或いは傷付き防１Ｆ
―等の目的でコーティング層を形成することが行われて
いる。このコーティング層を形成する手段としては、成
形体の表面に液状のコーティング材を塗布したり、シー
ト状のコーティング材を貼着したりする手段の他に、成
形体表面にコーティング材を塗布又は載ｌした状態で型
間にセットし、次いで型合せして加！！！！等すること
で成形体表面に一体化したコーティング層を形成する手
段がある。On the other hand, conventionally, the surface of molded bodies made of materials other than molded sound absorbing materials, such as plastic, has been colored or scratch-proofed.
- Coating layers are formed for the following purposes. As a means of forming this coating layer, in addition to applying a liquid coating material to the surface of the molded object or pasting a sheet-like coating material, there are also methods for applying or placing a coating material on the surface of the molded object. Place it between the molds in the flat state, then align the molds and add! ! ! ! There is a means of forming an integrated coating layer on the surface of the molded article by doing the same.
（発１引が解決しようとする問題点）
上述した成形体の表面に型を用いてコーティング層を形
成する場合、コーティング層を形成する前の成形体とコ
ーティング層を形成した後の成形体とではコーティング
層の厚み分だけ、その厚みが異なるため、成形体を成形
する成形型と、コーティング層を形成するコーティング
型とを共用することができず、型を二種類用意しなけれ
ばならない。(Problems to be solved by Hatsu 1) When forming a coating layer on the surface of the above-mentioned molded body using a mold, there are two types of molded body: one before forming the coating layer and one after forming the coating layer. Since the thickness differs by the thickness of the coating layer, the mold for molding the compact and the coating mold for forming the coating layer cannot be used in common, and two types of molds must be prepared.
（問題点を解決するための手段）
ところで、繊維マット等からなる吸音材は弾力性に富む
半ポーラス（多孔質）層を有している。(Means for solving the problem) By the way, a sound absorbing material made of a fiber mat or the like has a semi-porous layer that is highly elastic.
この点に着目して本発明をなしたものであり、その概要
は、吸音材を成形型を用いて予備成形し、次いで成形型
を開いて予備成形された吸音材表面にコーティング材を
塗布又は載置し、こ−の後再び、同一の成形型を型合せ
し、この型合せの際には吸音材の半ポーラス層の厚みが
コーティング材の厚み分だけ圧縮せしめられるようにし
た。The present invention was developed by focusing on this point, and its outline is to preform a sound absorbing material using a mold, then open the mold and apply a coating material to the surface of the preformed sound absorbing material. After this, the same molds were again fitted together, and during this fitting, the thickness of the semi-porous layer of the sound absorbing material was compressed by the thickness of the coating material.
（実施例）
以下に本発明方法の実施例を添付図面に従って説明する
。(Example) Examples of the method of the present invention will be described below with reference to the accompanying drawings.
先ず本発明にあっては、第１図に示す如き吸音材（１）
を用意する。この吸音材（１）は例えば、ガラス繊維又
はセラミック繊維等の無機繊維、或いはポリエステル等
の有機繊維を適昌な長さに切断して品合し、これにロー
ラ加圧及びニードリング等を施しマット状としたものと
する。そして、このマット状吸音材（１）の−面は熱硬
化性樹脂溶液等の成形剤を塗布、含浸せしめた層（１ａ
）とし、他の部分は多孔状の半ポーラス層（１ｂ）とし
ている。First, in the present invention, a sound absorbing material (1) as shown in FIG.
Prepare. This sound absorbing material (1) is made by, for example, cutting inorganic fibers such as glass fibers or ceramic fibers, or organic fibers such as polyester into appropriate lengths, and subjecting them to roller pressure, needling, etc. It shall be matte. The - side of this mat-like sound absorbing material (1) is coated with a layer (1a) coated with a molding agent such as a thermosetting resin solution and impregnated with it.
), and the other part is a porous semi-porous layer (1b).
以上の吸音材（１）を第２図に示すように、上下の型（
２）、（３）間にセットし、次いで第３図に示すように
型（２）、（３）を閉じて予備成形をなす。As shown in Fig. 2, the above sound absorbing material (1) is assembled into upper and lower molds (
2) and (3), and then close the molds (2) and (3) as shown in FIG. 3 to perform preforming.
そして、予備成形が終了したならば、第４図（Ａ）に示
す如く、型（２）、（３）を開き、予備成形した吸音材
（１）は型にそのままセットした状態で、吸音材（１）
の上面にシート状のコーティング材（４）を蔵置する。When the preforming is completed, as shown in Figure 4 (A), open the molds (2) and (3), and leave the preformed sound absorbing material (1) set in the mold as it is. (1)
A sheet-like coating material (4) is stored on the top surface of the container.
このコーティング材（４）としては例えばウレタン樹脂
シートなどを用いる。As this coating material (4), for example, a urethane resin sheet is used.
また、シート状コーティング材（４）を予備成形された
吸音材（１）上面に載置する代りに、第４図（Ｂ）に示
すように、液状のコーティング材（５）を吸音材（１）
の上面又は型（２）の内面若しくはこれらの両方にノズ
ル（６）を用いて塗布するようにしてもよい、更には図
示は省略したがゴブ（団塊）状のコーティング材を予備
成形された吸音材（１）上面に載置するようにしてもよ
い。In addition, instead of placing the sheet-like coating material (4) on the top surface of the preformed sound absorbing material (1), as shown in FIG. )
The nozzle (6) may be used to coat the upper surface of the mold (2), or the inner surface of the mold (2), or both of these. It may be placed on the upper surface of the material (1).
以上の如くして、予備成形後の吸音材（１）の上面にコ
ーティング材（４）、（５）を塗布又は載置したならば
、第５図に示す如く、前記型（２）、（３）を再び閉じ
る。すると、型（２）、（３）間に形成されるキャビテ
ィ容積は変らず、その代り、コーティング材（４）又は
（５）の厚みに相当する分だけ吸音材（１）の半ポーラ
ス！（ｌｂ）が圧縮された状態で成形される。After coating or placing the coating materials (4) and (5) on the upper surface of the preformed sound absorbing material (1) as described above, as shown in FIG. Close 3) again. Then, the volume of the cavity formed between the molds (2) and (3) does not change, but instead, the volume of the sound absorbing material (1) becomes semi-porous by an amount corresponding to the thickness of the coating material (4) or (5)! (lb) is molded in a compressed state.
この後、第６図に示すように型（２）、（３）から吸音
材（１）を取出すことで、半ポーラス層（ｌｂ）、成形
剤が硬化した硬化層（７）及びコーティング層（８）か
らなる多層成形吸音材（９）が得られる。After that, as shown in FIG. 6, the sound absorbing material (1) is taken out from the molds (2) and (3), and the semi-porous layer (lb), the hardened layer (7) in which the molding agent has been hardened, and the coating layer ( A multilayer molded sound absorbing material (9) consisting of 8) is obtained.
（発明の効果）
以上に説明した如く本発明によれば、表面にコーティン
グ層を有する成形吸音材を成形するにあたり、同一の型
を用いて、吸音材の予備成形と、予備成形さ′れた吸音
材とコーティング材との成形とを行うようにしたので、
用意する型が一種類で足り、スペース上及びコスト的に
極めて有利である。(Effects of the Invention) As explained above, according to the present invention, when molding a molded sound absorbing material having a coating layer on the surface, the same mold is used to preform the sound absorbing material and to form the preformed sound absorbing material. Since we decided to mold the sound absorbing material and the coating material,
Only one type of mold is required, which is extremely advantageous in terms of space and cost.
第１図は吸音材の側面図、第２図は吸音材を型間にセッ
トした状態の断面図、第３図は予備成形の状態を示す断
面図、第４図（Ａ）及び（Ｂ、）は予備成形した吸音材
上面にコーティング材を載置又は塗布している状態を示
す断面図、第５図はコーティング材と吸音材とを成形し
ている状態を示す断面図、第６図は成形後の成形吸音材
の断面図である。
尚、図面中（１）は吸音材、（ｌｂ）は半ポーラス層、
（２）、（３）は型、（４）、（５）はコーティング
材。
（７）は硬化層、（８）はコーティング層、（９）は成
形吸音材である。Figure 1 is a side view of the sound absorbing material, Figure 2 is a sectional view of the sound absorbing material set between molds, Figure 3 is a sectional view showing the state of preforming, Figures 4 (A) and (B, ) is a sectional view showing a state in which a coating material is placed or applied on the upper surface of a preformed sound absorbing material, FIG. 5 is a sectional view showing a state in which the coating material and sound absorbing material are molded, and FIG. FIG. 3 is a cross-sectional view of the molded sound absorbing material after molding. In the drawing, (1) is a sound absorbing material, (lb) is a semi-porous layer,
(2) and (3) are the molds, and (4) and (5) are the coating materials. (7) is a hardened layer, (8) is a coating layer, and (9) is a molded sound absorbing material.
Claims (1)
しめた後に、該吸音材を型間にセットして予備成形を行
い、次いで型を開き予備成形された吸音材を型間にセッ
トしたまま吸音材の表面にコーティング材を載置又は塗
布し、この後前記型を再度型合せすることを特徴とする
成形吸音材の成形方法。After impregnating at least one surface of a mat-like sound absorbing material with a molding agent, the sound absorbing material was set between molds to perform preforming, and then the mold was opened and the preformed sound absorbing material was set between the molds. A method for forming a molded sound-absorbing material, comprising placing or applying a coating material on the surface of the sound-absorbing material, and then fitting the molds together again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60187563A JPS6246628A (en) | 1985-08-26 | 1985-08-26 | Molding of formed sound absorbing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60187563A JPS6246628A (en) | 1985-08-26 | 1985-08-26 | Molding of formed sound absorbing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6246628A true JPS6246628A (en) | 1987-02-28 |
Family
ID=16208271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60187563A Pending JPS6246628A (en) | 1985-08-26 | 1985-08-26 | Molding of formed sound absorbing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6246628A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09111628A (en) * | 1995-10-20 | 1997-04-28 | Teijin Ltd | Molding of cushion material |
-
1985
- 1985-08-26 JP JP60187563A patent/JPS6246628A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09111628A (en) * | 1995-10-20 | 1997-04-28 | Teijin Ltd | Molding of cushion material |
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