JPH0929760A - Injection plug of synthetic resin foaming mold using air tube - Google Patents
Injection plug of synthetic resin foaming mold using air tubeInfo
- Publication number
- JPH0929760A JPH0929760A JP7201425A JP20142595A JPH0929760A JP H0929760 A JPH0929760 A JP H0929760A JP 7201425 A JP7201425 A JP 7201425A JP 20142595 A JP20142595 A JP 20142595A JP H0929760 A JPH0929760 A JP H0929760A
- Authority
- JP
- Japan
- Prior art keywords
- air tube
- synthetic resin
- injection hole
- resin foaming
- plug
- 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.)
- Withdrawn
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
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/581—Closure devices for pour holes
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】合成樹脂発泡液を注入して製造す
る断熱パネル等の成形型の注入栓に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold injection plug for a heat insulating panel or the like manufactured by injecting a synthetic resin foaming liquid.
【０００２】[0002]
【従来の技術】従来の注入栓は棒状栓（図４）、テーパ
ー状栓（図５）、スイング式栓（図６）などがある。従
来の注入栓の問題点としては １）使い捨てか、転用してもその回数が少ない（テーパ
ー状栓、スイング式栓）。 ２）発泡体硬化後の抜き取りが困難（棒状栓）。 ３）注入孔の形状によりそれぞれ専用品が必要である。 ４）注入孔内の掃除が毎回必要である。2. Description of the Related Art Conventional injection plugs include rod-shaped plugs (FIG. 4), tapered plugs (FIG. 5), swing type plugs (FIG. 6) and the like. The problems with the conventional injection plugs are as follows: 1) They are either disposable or diverted less often (tapered plug, swing plug). 2) Difficult to extract after curing the foam (bar-shaped plug). 3) A dedicated product is required depending on the shape of the injection hole. 4) The inside of the injection hole needs to be cleaned every time.
【０００３】[0003]
【発明が解決しようとする課題】従来の注入栓の問題点
を解決すると共に注入栓まわりからの液漏れ（フォーム
漏れ）を防止するDISCLOSURE OF INVENTION Problems to be Solved by the Invention In addition to solving the problems of the conventional injection plug, liquid leakage (foam leakage) around the injection plug is prevented.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
に、種々検討した結果、空気チューブを膨らませると、
注入栓の形状が変っても適切に対応することを知り、注
入孔に対しやや細い目の空気チューブを注入孔に挿入
し、加圧することにより栓とする方法を思いつき本発明
に到達した。すなわち本発明は合成樹脂発泡体の成形型
における発泡液注入孔の栓として、円筒状で中空且つ気
密性を有するゴム状弾性のチューブ（空気チューブ）を
栓とし、該空気チューブに空気を圧送して合成樹脂発泡
液の漏れを防止する空気チューブを使用した合成樹脂発
泡成形型の注入栓である。[Means for Solving the Problems] In order to solve the above problems, as a result of various studies, when the air tube is inflated,
Knowing that even if the shape of the injection plug is changed, it is possible to appropriately cope with the problem, and therefore, the inventors arrived at the present invention by conceiving a method of inserting a slightly thin air tube into the injection hole into the injection hole and applying pressure to form the plug. That is, the present invention uses a rubber-like elastic tube (air tube) that is cylindrical and hollow and has airtightness as a plug for a foaming liquid injection hole in a synthetic resin foam mold, and sends air to the air tube under pressure. It is a synthetic resin foaming mold injection plug that uses an air tube to prevent the synthetic resin foaming liquid from leaking.
【０００５】[0005]
【作用】合成樹脂発泡液を成形型に注入する注入孔の栓
として、注入孔の直径の７０〜９０％の直径を有し、か
つ、三方コックで連結した空気チューブを注入孔栓とし
て挿入し、充気によって該空気チューブを膨張させて注
入孔と密着させることができ、合成樹脂発泡液の漏れを
完全に防止することができる。[Function] As a plug for the injection hole for injecting the synthetic resin foaming liquid into the mold, an air tube having a diameter of 70 to 90% of the diameter of the injection hole and connected with a three-way cock is inserted as the injection hole plug. By filling the air tube, the air tube can be expanded and brought into close contact with the injection hole, and the synthetic resin foaming liquid can be completely prevented from leaking.
【０００６】[0006]
【実施例】断熱パネルを硬質ポリウレタンフォームで製
造する方法にて本発明を説明する。本発明は硬質ポリウ
レタンフォームのみでなく、軟質ポリウレタンフォーム
の成形にも又熱可塑性合成樹脂の発泡成形にも適応でき
るものである。The present invention is illustrated by the method of making an insulating panel from rigid polyurethane foam. INDUSTRIAL APPLICABILITY The present invention can be applied not only to rigid polyurethane foam, but also to molding of flexible polyurethane foam and foam molding of thermoplastic synthetic resin.
【０００７】図１はパネル２を製造する方法を示す斜視
図で、攪拌機１から注入ホース６を通じて注入口４より
合成樹脂発泡液を所定量注入する。注入口は放置してお
くと合成樹脂発泡液の発泡圧で該発泡液が漏れるので、
注入栓の挿通が必要である。FIG. 1 is a perspective view showing a method for manufacturing the panel 2, in which a predetermined amount of synthetic resin foaming liquid is injected from an agitator 1 through an injection hose 6 through an injection port 4. If the inlet is left unattended, the foaming liquid leaks due to the foaming pressure of the synthetic resin foaming liquid.
It is necessary to insert the injection plug.
【０００８】図２は本発明の注入孔４への空気チューブ
３の挿入を示す斜視図で、図３は本発明の空気チューブ
の拡大斜視図である。合成樹脂発泡液を断熱パネル成形
型２に注入完了後、空気チューブ３を注入孔に挿入す
る。注入孔が３５φとすると、空気チューブの直径Ｄは
通常２５〜３０φ前後のものを使用するものであるが、
一般的には空気チューブの直径は注入孔の直径の７０〜
９０％のものを用いる。空気チューブの長さＬは注入孔
の長さによって決定されるが、注入孔長さ（深さ）６０
mm程度であれば作業性も考慮し８０〜１００mmが使用し
やすい。ただし、専用の取手が使用できる場合には３０
mm程度でその効果は充分である。空気供給（充気）方法
は図のように三方コック５を用いコック弁５ａで切り換
えて充気する。充気圧力は合成樹脂発泡圧の０．５kg／
cm2 より大きくする必要があり、２〜３kg／cm2 が望ま
しい。FIG. 2 is a perspective view showing the insertion of the air tube 3 into the injection hole 4 of the present invention, and FIG. 3 is an enlarged perspective view of the air tube of the present invention. After the synthetic resin foaming liquid is completely injected into the heat insulation panel molding die 2, the air tube 3 is inserted into the injection hole. When the injection hole is 35φ, the diameter D of the air tube is usually about 25 to 30φ.
Generally, the diameter of the air tube is 70 to the diameter of the injection hole.
90% is used. The length L of the air tube is determined by the length of the injection hole, but the length (depth) of the injection hole 60
If it is about mm, workability is taken into consideration and 80 to 100 mm is easy to use. However, if a dedicated handle can be used, 30
An effect of about mm is sufficient. As for the air supply (filling) method, a three-way cock 5 is used as shown in FIG. Filling pressure is 0.5 kg of synthetic resin foaming pressure /
must be greater than cm 2, 2~3kg / cm 2 is desirable.
【０００９】本発明の空気チューブを連続的に使用する
には該空気チューブの表面にポリエチレンフィルムを巻
いたり、専用の袋を使用すれば作業性がアップする。To continuously use the air tube of the present invention, the workability can be improved by winding a polyethylene film on the surface of the air tube or using a special bag.
【００１０】本事例に使用した合成樹脂発泡体として
は、通常の硬質ポリウレタンフォームで見掛け密度は３
５〜４５kg／m3であり、断熱パネルとして小さいものは
１００〜１２０mm×５００mm×１０００mm程度のもの、
大きいものは１００〜１２０mm×１０００mm×６０００
mmのものも成形できる。As the synthetic resin foam used in this example, an ordinary rigid polyurethane foam having an apparent density of 3 is used.
It is 5 to 45 kg / m 3 , and a small heat insulating panel is about 100 to 120 mm x 500 mm x 1000 mm,
Larger one is 100-120mm x 1000mm x 6000
mm can also be molded.
【００１１】空気チューブは４kg／cm2 のエヤー圧力に
於いても破裂しない様、繊維で補強されたゴムチューブ
が好ましく、しかし発泡圧の弱い（１kg／cm2 以下）場
合に限っては自転車用のチューブも使用可能である。The air tube is preferably a rubber tube reinforced with fibers so that it does not burst even at an air pressure of 4 kg / cm 2 , but for bicycles only when the foaming pressure is weak (1 kg / cm 2 or less) The tube of can also be used.
【００１２】[0012]
１）ワンタッチで注入孔に栓をする事が可能となる。 ２）注入孔内にフォームが入らない為、成形後の掃除作
業を必要としない。 ３）棒状の栓に比べ抜き取る作業が容易である。 ４）数多くの成形型を同時に使用する場合、成形型毎に
注入孔の径に１０％〜３０％程度の差があっても、同一
の注入栓で漏れ防止が可能である。1) It is possible to plug the injection hole with one touch. 2) Since the foam does not enter the injection hole, cleaning work after molding is not required. 3) It is easier to pull out than a rod-shaped stopper. 4) When a large number of molding dies are used at the same time, even if there is a difference of about 10% to 30% in the diameter of the injection hole for each molding die, the same injection plug can prevent leakage.
【図１】本発明の攪拌機と断熱パネルとの関係を示す斜
視図。FIG. 1 is a perspective view showing a relationship between an agitator of the present invention and a heat insulating panel.
【図２】本発明の空気チューブ挿入の断熱パネルの斜視
図。FIG. 2 is a perspective view of a heat insulating panel for inserting an air tube according to the present invention.
【図３】本発明の空気チューブの拡大斜視図。FIG. 3 is an enlarged perspective view of the air tube of the present invention.
【図４】従来の棒状注入孔栓の斜視図。FIG. 4 is a perspective view of a conventional rod-shaped injection hole plug.
【図５】従来のテーパー状注入孔栓の斜視図。FIG. 5 is a perspective view of a conventional tapered injection hole plug.
【図６】従来のスイング式注入孔栓の斜視図。FIG. 6 is a perspective view of a conventional swing type injection hole plug.
１ 攪拌機 ２ パネル成形型 ３ 空気チューブ ４ 注入孔 ５ 三方コック ５ａ コック弁 ６ 注入ホース Ｂ 棒状注入孔栓 Ｄ 空気チューブ直径 Ｈ 排気 Ｋ 充気 Ｌ 空気チューブの長さ Ｓ スイング式注入孔栓 Ｔ テーパー状注入孔栓 1 Stirrer 2 Panel molding die 3 Air tube 4 Injection hole 5 Three-way cock 5a Cock valve 6 Injection hose B Rod injection hole plug D Air tube diameter H Exhaust K Filling L Air tube length S Swing injection hole plug T Tapered Injection hole plug
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｌ 9:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location B29L 9:00
Claims (1)
の注入孔の栓として、円筒状で中空且つ気密性を有する
ゴム状弾性のチューブ（空気チューブ）を栓とし、該空
気チューブに空気を圧送して合成樹脂発泡液の漏れを防
止することを特徴とする合成樹脂発泡成形型の注入栓。1. A rubber-like elastic tube (air tube) which is cylindrical and hollow and has airtightness is used as a plug for a foaming liquid injection hole in a synthetic resin foam molding die, and air is supplied to the air tube. An injection plug of a synthetic resin foam molding die, which is pumped to prevent the synthetic resin foam liquid from leaking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7201425A JPH0929760A (en) | 1995-07-13 | 1995-07-13 | Injection plug of synthetic resin foaming mold using air tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7201425A JPH0929760A (en) | 1995-07-13 | 1995-07-13 | Injection plug of synthetic resin foaming mold using air tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0929760A true JPH0929760A (en) | 1997-02-04 |
Family
ID=16440876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7201425A Withdrawn JPH0929760A (en) | 1995-07-13 | 1995-07-13 | Injection plug of synthetic resin foaming mold using air tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0929760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255391A (en) * | 2020-02-27 | 2020-06-09 | 廉作勇 | Hydrology monitoring well hole clearance ware |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1018839A (en) * | 1996-07-04 | 1998-01-20 | Calsonic Corp | Double pipe exhaust manifold |
| JP2006063938A (en) * | 2004-08-30 | 2006-03-09 | Sankei Giken Kogyo Co Ltd | Engine exhaust system |
| JP2011116204A (en) * | 2009-12-02 | 2011-06-16 | Mazda Motor Corp | Exhaust system of transverse engine |
| WO2013080521A1 (en) * | 2011-11-29 | 2013-06-06 | マツダ株式会社 | Exhaust device for multicylinder engine |
-
1995
- 1995-07-13 JP JP7201425A patent/JPH0929760A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1018839A (en) * | 1996-07-04 | 1998-01-20 | Calsonic Corp | Double pipe exhaust manifold |
| JP2006063938A (en) * | 2004-08-30 | 2006-03-09 | Sankei Giken Kogyo Co Ltd | Engine exhaust system |
| JP2011116204A (en) * | 2009-12-02 | 2011-06-16 | Mazda Motor Corp | Exhaust system of transverse engine |
| WO2013080521A1 (en) * | 2011-11-29 | 2013-06-06 | マツダ株式会社 | Exhaust device for multicylinder engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255391A (en) * | 2020-02-27 | 2020-06-09 | 廉作勇 | Hydrology monitoring well hole clearance ware |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20021001 |