JPS58107318A - Manufacture of laminated heat insulator - Google Patents
Manufacture of laminated heat insulatorInfo
- Publication number
- JPS58107318A JPS58107318A JP56205942A JP20594281A JPS58107318A JP S58107318 A JPS58107318 A JP S58107318A JP 56205942 A JP56205942 A JP 56205942A JP 20594281 A JP20594281 A JP 20594281A JP S58107318 A JPS58107318 A JP S58107318A
- Authority
- JP
- Japan
- Prior art keywords
- molding
- mold
- exterior body
- foam
- foamable
- 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
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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
- B29C44/146—Shaping the lining before foaming
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、ドアパネルや冷蔵犀の冷１Ｌあるいはツー
ナインのエバボックスなど番こ用いられる梼−断熱体の
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a heat insulator used for door panels, refrigerated 1L or two-nine Eva boxes, and the like.
従来、この檜の積層断熱体は、射出成形、真空成形、プ
ロー成形等で作られた表ｔｋｉ基材を組立てて中空の外
装体とし１次にその外装体の内部空間に注入発泡法によ
り発泡−を形成して製造されるのが普通であった。Conventionally, this cypress laminated insulation material is made by assembling the front TKI base material made by injection molding, vacuum forming, blow molding, etc. to form a hollow exterior body, and then foaming it by injection foaming method into the inner space of the exterior body. It was common to manufacture the product by forming -.
しかし、上記従来方法では、外装体の製造工程と＠泡−
の形成工程とを全＜ １１４４個の作業として行わなけ
ればならなｆｉ）ったので、作業が煩雑になり。However, in the above conventional method, the manufacturing process of the exterior body and @ foam
Since the formation process of 1,144 pieces had to be performed as a total of 1144 operations, the operation became complicated.
また多くの場合発泡圧に耐えて表ｄＩＵ＆材すなわち中
空外装体全体を、ｌｌ＃して支える冶具を別個に必要と
する欠点かあった。Moreover, in many cases, there is a drawback that a separate jig is required to withstand the foaming pressure and support the outer shell, that is, the entire hollow exterior body.
この発明は、このような事情に鑑みてなされたもので、
上起久点を解消した積−断熱体の製造方法を提供する。This invention was made in view of these circumstances,
Provided is a method for manufacturing a multilayer heat insulating body that eliminates the upper starting point.
すなわち、この発明によれば、プロー成形により得られ
た中空外装体内に１発泡性樹脂液を注入して発泡層を形
成させる積−断熱体の製造方法に８いて。That is, according to the present invention, there is provided a method for manufacturing a laminated heat insulating body in which a foamed resin liquid is injected into a hollow exterior body obtained by blow molding to form a foamed layer.
上記ブロー成形の金型のブローポイントを用いるか又は
金型の一部を開いて設けた注入口を用いて発泡性樹脂液
を注入することにより、得られた中空外装体をブロー成
形用のせ型に入れたままの状態で発泡層を形成させるこ
とを特徴とする積−断熱体の製造方法が提供される・
この発明の第１過程は、ブロー成形により、金型内て一
体に中空外装体を製造する過程である。By injecting the foaming resin liquid using the blow point of the blow molding mold mentioned above or using the injection port provided by opening a part of the mold, the obtained hollow exterior body is placed in a mold for blow molding. Provided is a method for manufacturing a laminated heat insulating body characterized by forming a foam layer while the body is in a mold.The first step of the present invention is to form a hollow exterior body integrally in a mold by blow molding. It is the process of manufacturing.
第２過程は、注入発泡法により、中空外装体の内部空間
にウレタンフオームなどの発泡−を形成する。４程であ
るか、＄１過程で用いたブロー成形の金型内に中空外装
体を入れた状態で発泡−を形成する煮に特徴がある。In the second step, a foam such as urethane foam is formed in the internal space of the hollow exterior body by an injection foaming method. It is characterized by the fact that foam is formed in a state where the hollow exterior body is placed in the blow molding mold used in the $1 process.
中空外装体の内部空間への発泡性樹脂液の注入は、中空
外装体をブロー成形したのち金型を一時的に開き、外装
体に注入口等をあけてかも行なってもよくブローポイン
ト（ブロー成形用正副空気通路）を利用してそこから注
入してもよい、後者の場合、金型を開くことなく、Ｄｌ
つ注入口を設けることなく発泡性樹脂液の注入か行なえ
１作業工根上好ましい。The foaming resin liquid may be injected into the internal space of the hollow exterior body by temporarily opening the mold after blow molding the hollow exterior body and opening an injection port in the exterior body. In the latter case, Dl can be injected from there without opening the mold.
The foamable resin liquid can be injected without providing an inlet, which is preferable for one operation.
成形用の金型には発泡−！成時のエア抜き通路を設ける
必要かあるか、もともと金型に設けるべき空電通路（例
えば上記プローポイント）をエア抜き通路としても利用
できるようにするのが好ましい、そこで、金型の形状を
、積層発泡体のエア抜き通絡め位置が上方になる姿勢で
成形空間が形成されかつその成形空間から上方へ向けて
エア抜き通路が設けられた形状とするのが好ましい、こ
うした場合、特に発泡性樹脂液のもれ止め構造を採用し
なくても、原液もれを生じない利点がある。Foaming in molds! Is it necessary to provide an air bleed passage during molding? It is preferable to make the static passage that should originally be provided in the mold (for example, the above-mentioned plow point) also be used as an air bleed passage. In such a case, it is preferable that a molding space is formed with the air bleed connection position of the laminated foam facing upward, and that an air bleed passage is provided upward from the molding space. There is an advantage that leakage of the raw solution does not occur even if a resin liquid leakage prevention structure is not adopted.
この発明により、表面基材の間に発泡−がはさまれたサ
ンドイッチ構造の梼ｍ断熱体か容易に製造されるように
なるか、この梼−断熱体は同時に防音効果を有するもの
であるから、防音体として利用することも可能である。With this invention, it becomes possible to easily produce a sandwich-structured insulation with a foam sandwiched between surface materials, since this insulation has a soundproofing effect at the same time. It is also possible to use it as a soundproofing material.
なｇ、第一過程のごとき中空外装体を成形する工程に２
いては１通常金型は使用する樹脂の成形可能温度（熱費
形温度以上）に加熱されるが、この発明による方法によ
ればかような加熱終了後の金型を引き続き冶具として使
用しているため、連続的に行なえば従来の冶具のごとき
均一発泡のための新たな加熱は必要とせず、’＠記成形
用の熱を有効に利用することができる。2. In the process of forming a hollow exterior body such as the first process,
1. Normally, the mold is heated to the moldable temperature of the resin used (above the heating mold temperature), but according to the method of the present invention, the mold continues to be used as a jig after such heating is completed. Therefore, if it is carried out continuously, there is no need for additional heating for uniform foaming as in conventional jigs, and the heat for molding can be used effectively.
また、上記中空外装体の成形後の金型の残存温度は、従
来の治具の加熱（均一発泡のため）温度に比較して高い
ため、中空外装体の表面は若干軟化状１ｍ８維持する。Furthermore, since the residual temperature of the mold after molding the hollow exterior body is higher than the heating temperature of a conventional jig (for uniform foaming), the surface of the hollow exterior body maintains a slightly softened state of 1 m8.
そのためことに後述する第１図に示すようなりラン／部
に８いては、成形体同志による充分なシール伏線が得ら
れ１発泡性樹脂液のもれが生じない点きわめて有用であ
る。Therefore, the run/section 8 as shown in FIG. 1, which will be described later, is extremely useful in that a sufficient sealing line between the molded bodies can be obtained and no leakage of the foamable resin liquid will occur.
以下１図に示す賽−例に基いて、さらに説明する。Further explanation will be given below based on the dice example shown in FIG.
１１１図はブロー成形による第１過程を示すもので、下
金型（１）と上金型（２１の間の成形空間（４）にて。Figure 111 shows the first process of blow molding, in the molding space (4) between the lower mold (1) and the upper mold (21).
たとえばへａ５樹脂のごとき熱可塑性樹脂Ｓ’−）＋３
１１３１がＶ−）ブロー法によりブロー成形されてｇす
、圧縮空気通路１６Ｊを通じて圧縮空気向が吹込まれて
いる。金型ｉｌｌ ＋２１でクランプされているり一部
（３１１３１の一部（３ｍ）（３鳳）が薄肉になってい
るのは。For example, thermoplastic resin such as A5 resin S'-)+3
1131 is blow molded by the V-) blow method, and compressed air is blown through the compressed air passage 16J. It is clamped by mold ill +21 and some parts (31131 part (3m) (3ho) are thin.
エアもれの無いよう確実にクランプするためと。This is to ensure secure clamping to prevent air leaks.
成形後の切り離しを容易にするためである。This is to facilitate separation after molding.
ブロー成形後、中空成形体を金型から取り出すことなく
第２図８よび４３図に示すように第２過程が行われる。After blow molding, a second process is carried out as shown in FIGS. 8 and 43 without removing the hollow molded body from the mold.
まず第２図に示すように、成形金型１１１ ＋２１はそ
のままで、成形されてできた中空外装体（ＩＧの内部空
間間に圧縮空気通路１６１を通じてたとえば発泡性ウレ
タン原液のごとき発泡性樹脂液（７１か注入される。そ
うして発泡させれば、第３図に承りうに、中空外装体−
内にウレタンフオームのごとき発泡１１１１１１１！ｌ
が形成される。（８Ｊは内部空間（■穿から排出される
空気である。First, as shown in FIG. 2, while the molding die 111 + 21 remains as it is, a compressed air passage 161 is passed between the inner space of the molded hollow exterior body (IG) and a foaming resin liquid, such as a foaming urethane stock solution, is 71 is injected into the shell.If it is then foamed, a hollow exterior body is formed as shown in Figure 3.
Foam 1111111 like urethane foam inside! l
is formed. (8J is the air exhausted from the internal space (■).
こうして金型ｉｌｌ １２１内で発泡ＳａＷが形成され
たら。Once the foamed SaW is thus formed within the mold 121.
金型１１１ （２１を開いて、クランプさ＾ている部分
の−ｇ（３ｍ）（３ｍ）テ切’）離せば、所望の梼−断
熱体ａｊが得られる。By opening the mold 111 (21 and cutting off the clamped part -g(3m)(3m)), the desired roof-insulator aj can be obtained.
なｇ、中空外装体に発泡体の流れ方向のリブを設ければ
ボイド対策になるので好ましいが、ブロー成形ではこの
ようなリブを容易に形成できる長所がある。また、この
ようなリブは、梼−新熱体を冷凍＊ａに使用するときに
エバポレータを挿設するのに利用することができる。It is preferable to provide the hollow exterior body with ribs in the direction of flow of the foam as this will help prevent voids, but blow molding has the advantage of being able to easily form such ribs. Further, such ribs can be used to insert an evaporator when the new heating element is used for refrigeration*a.
以上の説明から理解されるように、この発明の製造方法
によれば、中空外装体の成形と中空外装体内の発泡禰の
形成とを連続的に行いうるから。As understood from the above description, according to the manufacturing method of the present invention, the molding of the hollow exterior body and the formation of the foam ridges within the hollow exterior body can be performed continuously.
極めて作業効率よ＜４１１１−断熱体ｊｋ−造できるよ
うにな′る。さらに１発泡体形成のためのみの冶具が必
要でなくなる・This makes it possible to manufacture heat insulators with extremely high work efficiency. Furthermore, there is no longer a need for a jig just for forming a foam.
第１−はこの発明め方法のプロー成形工程の一例を示す
酸１ｌＩｌｌｒ面図、第２図は第１図につづいて行われ
る発泡性樹脂績の注入の状態の一例を示す縦断面図、第
３図は発泡−形成の状態を示す縦断面図である。
（１）・・・下曹型、（２１・・・上金型、（３）・・
・Ｍ＆呵塑性樹脂Ｖ−） 、 ＋４１・・・成形空間、
ｔ５ト・・圧縮空気通路、（６）・・・圧縮空気、１７
１・・発泡性樹脂液、（８１・・・空気。
第１図
第２図Fig. 1- is an acid 1lIllr side view showing an example of the blow molding process of the method of this invention, Fig. 2 is a longitudinal sectional view showing an example of the state of injection of foamable resin carried out following Fig. 1; FIG. 3 is a longitudinal sectional view showing the state of foaming and formation. (1)...Lower soda mold, (21...Upper mold, (3)...
・M&呵plastic resin V-), +41...molding space,
t5... Compressed air passage, (6)... Compressed air, 17
1... Foaming resin liquid, (81... Air. Figure 1 Figure 2
Claims (1)
樹脂液を注入して＠泡！−を形成させる積層断熱体の製
造方法に８いて。 上記プロー成形の金型のブローポイントを用いるか又は
金型の一部’に開いて設けた注入口を用いて発泡性樹Ｆ
４＠液を注入することにより、得られた中空外装体をブ
ロー成形用の金型に入れたままの状態で発泡層を形成さ
せることを特徴とする４１１＋１１断熱体の製造方法。 龜 発泡−がウレタンフオームからなる特許請求の範囲
第１項記載の製造方法・[Claims] 1. Inject @core resin liquid into the hollow exterior body obtained by blow molding to create @foam! - 8 to a manufacturing method of a laminated heat insulating body to form. Using the blow point of the above-mentioned blow molding mold, or using the injection port opened in a part of the mold,
4@ A method for producing a 411+11 heat insulating body, characterized by injecting a liquid to form a foam layer while the obtained hollow exterior body is placed in a mold for blow molding. The manufacturing method according to claim 1, wherein the foam is made of urethane foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56205942A JPS58107318A (en) | 1981-12-18 | 1981-12-18 | Manufacture of laminated heat insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56205942A JPS58107318A (en) | 1981-12-18 | 1981-12-18 | Manufacture of laminated heat insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58107318A true JPS58107318A (en) | 1983-06-27 |
Family
ID=16515264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56205942A Pending JPS58107318A (en) | 1981-12-18 | 1981-12-18 | Manufacture of laminated heat insulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58107318A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001073997A (en) * | 1999-08-16 | 2001-03-21 | General Electric Co <Ge> | Injection-molded hybrid blade part |
-
1981
- 1981-12-18 JP JP56205942A patent/JPS58107318A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001073997A (en) * | 1999-08-16 | 2001-03-21 | General Electric Co <Ge> | Injection-molded hybrid blade part |
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