JPH0255206B2 - - Google Patents
Info
- Publication number
- JPH0255206B2 JPH0255206B2 JP55050995A JP5099580A JPH0255206B2 JP H0255206 B2 JPH0255206 B2 JP H0255206B2 JP 55050995 A JP55050995 A JP 55050995A JP 5099580 A JP5099580 A JP 5099580A JP H0255206 B2 JPH0255206 B2 JP H0255206B2
- Authority
- JP
- Japan
- Prior art keywords
- urethane resin
- base material
- conveyor
- foam
- air
- 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
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 20
- 239000006260 foam Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000010097 foam moulding Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は発泡断熱板の製造方法の改良に関し、
更に詳しくは基材１にウレタン樹脂２を注入して
ウレタン樹脂２を基材１内に中央部が厚肉となる
ように押し拡げ、然るのちにダブルコンベアー３
にてウレタン樹脂２を発泡成形して成る発泡断熱
板の製造方法に係るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for manufacturing a foam insulation board.
More specifically, the urethane resin 2 is injected into the base material 1, the urethane resin 2 is spread inside the base material 1 so that the center part becomes thick, and then the double conveyor 3
The present invention relates to a method of manufacturing a foam heat insulating board formed by foam-molding urethane resin 2 in a method.
従来の発泡断熱板の製造方法にあつては、基材
１内にウレタン樹脂２を注入してからエアーＡを
吹付け、ウレタン樹脂２を均一の厚さになるよう
に押し拡げてからウレタン樹脂２を発泡成形させ
ていた。しかしかかる方法にあつては、ウレタン
樹脂２がエアーＡにて押し拡げられる際にエアー
Ａを巻き込んでウレタン樹脂２と基材１との間に
形成される大きな空隙Ｂを含んだまま発泡成形さ
れることになり、したがつて断熱性が低下した
り、成形品の使用時に熱が加えられると空隙Ｂの
ある基材１表面に第３図に示すような膨れ不良部
４が生じるという問題があつた。１０は注入機で
ある。１６はエアー吹付け機である。 In the conventional manufacturing method of foam insulation boards, the urethane resin 2 is injected into the base material 1, and then air A is blown to spread the urethane resin 2 to a uniform thickness. 2 was foam molded. However, in such a method, when the urethane resin 2 is expanded by the air A, the air A is drawn in and the foam molding is performed while including the large void B formed between the urethane resin 2 and the base material 1. As a result, there is a problem that the heat insulation properties are lowered or that when heat is applied to the molded product during use, a bulging defective portion 4 as shown in FIG. It was hot. 10 is an injection machine. 16 is an air blower.
本発明は上記の点に鑑みて為されたものであつ
て、その目的とするところは発泡断熱板内にエア
ーの巻込みによる空隙が含まれない成形品を生産
することができる発泡断熱板の製造方法を提供す
ることにある。 The present invention has been made in view of the above points, and its purpose is to provide a foam insulation board that can produce molded products that do not contain voids caused by air entrainment within the foam insulation board. The purpose is to provide a manufacturing method.
以下、本発明を図の実施例により詳述する。第
４図乃至第６図は本発明の第１実施例を示すもの
である。第４図中３はダブルコンベアーであつ
て、上段コンベアー６と下段コンベアー７とで構
成されており、上段コンベアー６は大プーリー８
にかけられた上段キヤタピラ６ａと、この上段キ
ヤタピラ６ａを囲繞するように小プーリー９にか
けられた離型ベルト６ｂとを具備しており、下段
コンベアー７は大プーリー８にかけられた下段キ
ヤタピラ７ａと、この下段キヤタピラ７ａを囲繞
するように小プーリー９にかけられた製品保護ベ
ルト７ｂとを具備している。そして発泡断熱板を
製造する場合には、下段コンベア７上に塩化ビニ
ル樹脂製の薄肉浅底の基材１を載置してこの基材
１内に注入機１０のモーター撹拌による注入でウ
レタン樹脂２を注入したのち、上段コンベアー６
と下段コンベアー７との間で発泡成形されるもの
である。１１はウレタン樹脂２が発泡する前にウ
レタン樹脂２を押し拡げる押し拡げローラであつ
て、この押し拡げローラ１１の回転軸１１ａは送
り方向Ｘと直交しており、押し拡げローラ１１の
形状は両端から中央に行く程径が小さくなつた鼓
状をしている。また押し拡げローラ１１より送り
方向寄り部位には整形ローラ１２が配されてお
り、この整形ローラ１２は押し拡げローラ１１と
同一形状であり、整形ローラ１２の回転軸１２ａ
はウレタン樹脂２の発泡を考慮して押し拡げロー
ラ１１の回転軸１１ａよりも高い位置に設けてい
る。１３は成形品の裏面に配される裏面シートで
あつて、ウレタン樹脂２の発泡前の時点からウレ
タン樹脂２上面に配されるものである。しかして
基材１内に注入されるウレタン樹脂２は発泡前に
裏面シート１３を介して押し拡げローラ１１にて
基材１の底板１ａ全面に亘つて押し拡げられると
ともに、ウレタン樹脂２の中央部が厚肉に形成さ
れるものであり、然るのちに整形ローラ１２で発
泡し始めたウレタン樹脂２を整えてから上段コン
ベアー６と下段コンベアー７とで発泡成形してウ
レタン樹脂２の上面を平坦にするものである。し
たがつて発泡成形段階でウレタン樹脂２の上面が
上段コンベアー６で中央から徐々に側方に押圧さ
れるにともなつて発泡前にウレタン樹脂２に巻込
まれたエアーＡは側方に移動して外に逃げること
ができるのである。１４は端面処理治具である。 Hereinafter, the present invention will be explained in detail with reference to the embodiments shown in the drawings. 4 to 6 show a first embodiment of the present invention. 3 in Fig. 4 is a double conveyor, which is composed of an upper conveyor 6 and a lower conveyor 7, and the upper conveyor 6 has a large pulley 8.
The lower stage conveyor 7 includes an upper stage caterpillar 6a that is hung on a large pulley 8, and a release belt 6b that is wrapped around a small pulley 9 so as to surround the upper stage caterpillar 6a. A product protection belt 7b is provided which is hung around a small pulley 9 so as to surround the lower caterpillar 7a. When manufacturing a foam insulation board, a thin-walled, shallow-bottom base material 1 made of vinyl chloride resin is placed on the lower conveyor 7, and urethane resin is injected into this base material 1 by stirring the motor of the injection machine 10. After injecting 2, the upper conveyor 6
and the lower conveyor 7. Reference numeral 11 denotes a pushing and spreading roller that pushes and spreads the urethane resin 2 before the urethane resin 2 is foamed, and the rotating shaft 11a of this pushing and spreading roller 11 is perpendicular to the feeding direction It has a drum-like shape with the diameter decreasing towards the center. Further, a shaping roller 12 is arranged at a position closer to the feeding direction than the pushing and spreading roller 11, and this shaping roller 12 has the same shape as the pushing and spreading roller 11, and has a rotating shaft 12a of the shaping roller 12.
is provided at a higher position than the rotating shaft 11a of the spreading roller 11 in consideration of foaming of the urethane resin 2. Reference numeral 13 denotes a back sheet placed on the back side of the molded product, and is placed on the top surface of the urethane resin 2 before the urethane resin 2 is foamed. Before foaming, the urethane resin 2 injected into the base material 1 is pushed and spread over the entire bottom plate 1a of the base material 1 by the spreading roller 11 via the back sheet 13, and the central portion of the urethane resin 2 is The urethane resin 2 is formed to have a thick wall, and after that, the urethane resin 2 that has started to foam is adjusted by the shaping roller 12, and then foam-molded by the upper conveyor 6 and the lower conveyor 7 to flatten the upper surface of the urethane resin 2. It is something to do. Therefore, in the foam molding stage, as the upper surface of the urethane resin 2 is gradually pressed laterally from the center by the upper conveyor 6, the air A that was engulfed in the urethane resin 2 before foaming moves laterally. You can escape outside. 14 is an end face processing jig.
第７図乃至第９図は本発明の他の実施例を示す
ものである。第７図中、ダブルコンベアー３の下
段コンベアー７の送り方向と反対方向には初期送
りコンベアー１５が配されている。初期送りコン
ベアー１５のキヤタピラ１５ａの外周面には巾方
向の中央に行く程凹んだ凹部１５ｂが設けられて
いる。そして基材１を初期送りコンベアー１５に
載置してウレタン樹脂２を注入したならば、基材
１の底板１ａは第８図のようにウレタン樹脂２の
重みで上記凹部１５ｂの形状に撓むことになり、
この状態でエアー吹付け機１６にてウレタン樹脂
２上面にエアーＡを吹付けたならば、基材１の底
板１ａの全面に亘つてウレタン樹脂２が押し拡げ
られて上面が平らになり、このとき同図に示すよ
うにウレタン樹脂２は中央が厚肉で側部が薄肉に
なるため、ウレタン樹脂２がエアーＡの吹付けで
側方に拡がるときに巻込まれるエアーＡは薄肉部
分から外に逃げ易すいものである。次にウレタン
樹脂２が注入された基材１はダブルコンベアー３
に移されるが、下段コンベアー７の外周面は平坦
であるために基材１の底板１ａが平坦に戻るとと
もに発泡開始段階のウレタン樹脂２上面は本発明
の第１実施例と同様に中央が上方に突出した厚肉
形状となり、然るのちに上段コンベアー６と下段
コンベアー７とで発泡成形するのである。 7 to 9 show other embodiments of the present invention. In FIG. 7, an initial feed conveyor 15 is arranged in a direction opposite to the feed direction of the lower conveyor 7 of the double conveyor 3. The outer peripheral surface of the caterpillar 15a of the initial feed conveyor 15 is provided with a recessed portion 15b that is recessed toward the center in the width direction. When the base material 1 is placed on the initial feed conveyor 15 and the urethane resin 2 is injected, the bottom plate 1a of the base material 1 is bent into the shape of the recess 15b due to the weight of the urethane resin 2, as shown in FIG. As a result,
In this state, if air A is sprayed onto the upper surface of the urethane resin 2 using the air sprayer 16, the urethane resin 2 will be spread over the entire surface of the bottom plate 1a of the base material 1, and the upper surface will become flat. As shown in the same figure, the urethane resin 2 has a thick wall at the center and a thin wall at the sides, so when the urethane resin 2 spreads laterally due to the spraying of air A, the air A that is drawn in flows outward from the thin wall. It's easy to escape. Next, the base material 1 injected with the urethane resin 2 is conveyed to the double conveyor 3.
However, since the outer circumferential surface of the lower conveyor 7 is flat, the bottom plate 1a of the base material 1 returns to a flat state, and the upper surface of the urethane resin 2 at the foaming start stage has its center upward as in the first embodiment of the present invention. It becomes a thick-walled shape that protrudes, and is then foam-molded by the upper conveyor 6 and the lower conveyor 7.
本発明は上述のように基材にウレタン樹脂を注
入してウレタン樹脂を基材内に中央部が厚肉とな
るように押し拡げるので、ウレタン樹脂の上面中
央が上方に突出するように発泡するものであり、
またダブルコンベアーにてウレタン樹脂を発泡成
形するので、発泡成形段階のウレタン樹脂は上面
が中央から側方に押圧されることになり、したが
つて注入時にウレタン樹脂に巻込まれるエアーは
側方向に移動してウレタン樹脂の側端部と基材と
の間から外に逃げることができ、成形品のウレタ
ン樹脂内には巻込まれたエアーによる空隙が存在
することがなくて発泡断熱板の断熱性の低下が防
止され、また基材表面に膨れ不良部が発生しない
という効果を奏するものである。 In the present invention, as described above, the urethane resin is injected into the base material and the urethane resin is expanded into the base material so that the center part becomes thick, so that the urethane resin is foamed so that the center of the upper surface thereof protrudes upward. It is a thing,
In addition, since the urethane resin is foam-molded using a double conveyor, the upper surface of the urethane resin during the foam-molding stage is pressed from the center to the sides, so the air that is drawn into the urethane resin during injection moves laterally. The air can escape from between the side edges of the urethane resin and the base material, and there are no voids caused by the trapped air in the urethane resin of the molded product, which improves the insulation properties of the foam insulation board. This has the effect that deterioration is prevented and that no blistering defects occur on the surface of the base material.
第１図および第２図は従来例のウレタン樹脂の
注入状態を示す図、第３図は同上により成形され
た成形品の断面図、第４図は本発明の第１実施例
の成形装置を示す全体図、第５図は同上の注入さ
れたウレタン樹脂を押し拡げた状態を示す図、第
６図は同上のウレタン樹脂を整えている状態を示
す図、第７図は本発明の第２実施例の成形装置を
示す全体図、第８図および第９図は同上の注入さ
れたウレタン樹脂を押し拡げた状態を示す図であ
つて、１は基材、２はウレタン樹脂、３はダブル
コンベアーである。
1 and 2 are diagrams showing the injection state of urethane resin in a conventional example, FIG. 3 is a sectional view of a molded product molded by the same method, and FIG. 4 is a diagram showing a molding apparatus according to the first embodiment of the present invention. 5 is a diagram showing a state in which the injected urethane resin as above is pushed out, FIG. 6 is a diagram showing a state in which the same urethane resin as above is being adjusted, and FIG. An overall view showing the molding apparatus of the example, and FIGS. 8 and 9 are views showing the same injected urethane resin as described above being pressed and expanded, where 1 is a base material, 2 is a urethane resin, and 3 is a double It's a conveyor.
Claims (1)
を基材内に中央部が厚肉となるように押し拡げ、
然るのちにダブルコンベアーにてウレタン樹脂を
発泡成形して成る発泡断熱板の製造方法。1 Inject urethane resin into the base material and spread the urethane resin inside the base material so that the center part becomes thick.
A method of manufacturing a foam heat insulating board, which is then formed by foam-molding urethane resin on a double conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5099580A JPS56144937A (en) | 1980-04-15 | 1980-04-15 | Preparation of foamed heat insulation board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5099580A JPS56144937A (en) | 1980-04-15 | 1980-04-15 | Preparation of foamed heat insulation board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56144937A JPS56144937A (en) | 1981-11-11 |
| JPH0255206B2 true JPH0255206B2 (en) | 1990-11-26 |
Family
ID=12874361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5099580A Granted JPS56144937A (en) | 1980-04-15 | 1980-04-15 | Preparation of foamed heat insulation board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56144937A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50124961A (en) * | 1974-02-20 | 1975-10-01 |
-
1980
- 1980-04-15 JP JP5099580A patent/JPS56144937A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50124961A (en) * | 1974-02-20 | 1975-10-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56144937A (en) | 1981-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3832429A (en) | Method and apparatus for the production of sheet on block of agglomerated granules of polystryrene | |
| GB1224699A (en) | Improvements in or relating to a method and apparatus for continuously manufacturing foamed plastic profiles | |
| US2960727A (en) | Methods of forming discrete thermoplastic granules into a sintered length | |
| US3167603A (en) | Process and apparatus for producing laminated panels | |
| JPH0255206B2 (en) | ||
| US5409649A (en) | Method of forming foam buns having no skin on a surface | |
| JPH02289314A (en) | Method and device for manufacturing latex foam product with recess | |
| JPS5678949A (en) | Preparation of building panel | |
| KR200386489Y1 (en) | treatment apparatus of polystyrene plate | |
| KR100589724B1 (en) | Treatment apparatus of polystyrene plate and method for treatment the same | |
| JPS5845930A (en) | Preparation of heat insulating material | |
| JPS57165230A (en) | Apparatus for preparing heat insulator-contained panel | |
| JPS597072Y2 (en) | Foam molding equipment | |
| JPH0516332B2 (en) | ||
| JPH074825B2 (en) | Molding method for automobile decorative mold | |
| JPS593877Y2 (en) | Heating and pressurizing equipment for composite plate manufacturing | |
| JP3021335B2 (en) | Thermal insulation panel and its manufacturing method | |
| JPH089173B2 (en) | Continuous production equipment for foam slabs | |
| JP2014097587A (en) | Method for manufacturing vacuum heat insulating panel | |
| JPH0647263B2 (en) | Heat insulation panel manufacturing method | |
| JPS6025254B2 (en) | Manufacturing method for insulating building materials | |
| JPH09295192A (en) | Device for producing metal siding material | |
| JPH0639108B2 (en) | Insulation material manufacturing method | |
| JPS6233934B2 (en) | ||
| GB1593302A (en) | Method for continuous production of slabs of polyurethane foam |