JPS59140043A - Manufacture of resin valve box - Google Patents
Manufacture of resin valve boxInfo
- Publication number
- JPS59140043A JPS59140043A JP58014941A JP1494183A JPS59140043A JP S59140043 A JPS59140043 A JP S59140043A JP 58014941 A JP58014941 A JP 58014941A JP 1494183 A JP1494183 A JP 1494183A JP S59140043 A JPS59140043 A JP S59140043A
- Authority
- JP
- Japan
- Prior art keywords
- valve box
- resin
- molding
- dies
- valve
- 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.)
- Granted
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Lift Valve (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
末完８Ａは、弾性シー）ｋ備えた樹脂製弁箱の製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION Part 8A relates to a method for manufacturing a resin valve box provided with an elastic seam.
樹脂製弁箱の従来例として第８図に示すように、樹脂の
みを用いて成形し几弁箱圓に、弾性シート＠ヲ接着剤に
て収付けるようにしているが、かかる構成の弁箱圓な、
小口径の弁を構成することはできるものの、弁箱自体の
強度を充分に高め建く、シかも、シート（２）の取付強
度全充分に高め難い点に起因して、大口径の弁を構成す
ることはできないものであった。As shown in Fig. 8, a conventional example of a valve box made of resin is molded using only resin and attached to the round valve box with an elastic sheet@wo adhesive. Round,
Although it is possible to construct a small-diameter valve, it is difficult to sufficiently increase the strength of the valve body itself, but it is difficult to sufficiently increase the mounting strength of the seat (2), so it is difficult to construct a large-diameter valve. It was impossible to configure.
本発明の目的は、弾性シートを精度良く、且つ、強度大
なる伏金で弁箱に取付けることができる樹脂製弁箱の製
造方法全提供する点にある。An object of the present invention is to provide a complete method for manufacturing a resin valve box, which allows an elastic sheet to be attached to the valve box with high precision and high strength.
本発明による樹脂製弁箱製造方法の特徴構成は、弾性シ
ート、及び、補強繊維を弁箱成形用型内に設置し、その
後、樹脂金前記架内に加圧注入する点にある。The characteristic structure of the resin valve box manufacturing method according to the present invention is that an elastic sheet and reinforcing fibers are placed in a mold for molding a valve box, and then injected under pressure into the resin metal frame.
次に、本案特徴構成による作用効果を述べる。Next, the effects of the feature configuration of the present invention will be described.
すなわち、補強繊維によって弁箱の強度を充分に高める
ことができ、シ〃為も、シートを弁箱に一体成形しであ
るから、例えばシートに成形後の弁箱にボルト固定する
と、弁箱部ボルト押通孔等の加工の九めに強度低Ｆｔ−
生じるものとなるが、そｉ″Ｌを回避できると共に、シ
ートの数行精度を高めることができ、さらに、シー１ｔ
−弁箱に一体成形する点と、４１１脂の加圧注入に伴っ
て弾性圧Ｎ変形され几伏惑で弁箱に保持されるシートが
その弾性復元力で弁箱に接合する点との相剰により、シ
ート１−弁箱に強度大なる代金で取付けることができる
。In other words, the reinforcing fibers can sufficiently increase the strength of the valve body, and since the seat is integrally molded with the valve body, for example, when bolted to the valve body after the seat has been molded, the valve body part Low strength Ft- for machining bolt through holes etc.
However, it is possible to avoid that i″L, improve the accuracy of the number of lines on the sheet, and furthermore, it is possible to avoid
- There is a compatibility between the fact that the sheet is integrally molded into the valve body and the sheet that is deformed under an elastic pressure of N due to pressurized injection of 411 fat and held in the valve body by deformation, is joined to the valve body by its elastic restoring force. Due to the surplus, it can be attached to the seat 1-valve box with high strength.
Ｊ：、紀作用にエリ、弁箱に充分な強度を備えさせるこ
とができ、しかも、シートに所定の位置に正確に位置さ
せることができ、そのうえ、シートを剥離の生じないよ
うに強固に取付けることができるのであり、もって、大
口径の弁箱を製造する際にも便利に使用できる樹脂製弁
箱の製造方法を得るに至った。J: It is possible to provide sufficient strength to the valve body for long-term operation, to allow the seat to be accurately positioned at a predetermined position, and to securely attach the seat to prevent peeling. Thus, a method for manufacturing a resin valve box that can be conveniently used even when manufacturing a large-diameter valve box has been obtained.
以下、本発明の実施例を図面に基づいて説明する。Embodiments of the present invention will be described below based on the drawings.
第１図は、バタフライ弁に使用する樹脂製弁箱ｆｌ＋の
製造方法を示し、弁箱内周面成形用の一対の中型１２１
１１２＋、及び、弁箱内周面成形用の外型（３）を設け
である。Fig. 1 shows a method of manufacturing a resin valve box fl+ used for a butterfly valve, in which a pair of medium molds 121 for molding the inner peripheral surface of the valve box are shown.
112+, and an outer mold (3) for molding the inner peripheral surface of the valve box.
そして、ＣＲ，ＥＰＴ？の軟質ゴム製の埋伏弾性ンー）
１４１ ｋ 、その７一ト而画部分を中型（２１゜＋
２１ Ｋ係合させた伏合で弁箱成形用型１２１ 、１２
１ 、 ＋３１内に設置すると共に、プリフォームした
補強繊維＋５１ ｉ 、弁箱成形用型＋２１ 、 ＋２
１ 、 ＋３１内に設置する。And CR, EPT? impaction elasticity made of soft rubber)
141k, the 71st part is medium size (21°
21 Valve box molding molds 121, 12 with K engaged engagement
1, +31 and preformed reinforcing fibers +51 i, valve box molding molds +21, +2
1, installed within +31.
その後、不飽和ポリエステル等の熱硬化性樹脂を、湯口
（６）より前記型１２１ 、１２１ 、 ＋３１内に加
圧注入して、弁箱Ｅｌ＋にシート＋４） ｋ一体成ｊし
する。Thereafter, a thermosetting resin such as unsaturated polyester is injected under pressure into the molds 121, 121, +31 through the gate (6) to integrally form a sheet +4) on the valve box El+.
上記の如く製造した弁箱１１）ｖｃ１第２図に示すよう
に、補強繊維（７）を備え次樹脂製弁体（８）を組付け
、もって、弁体（８１の回転に伴って弁箱内流路を開閉
するバタフライ弁乞構成しである。As shown in FIG. 2, the valve box 11)vc1 manufactured as described above is provided with reinforcing fibers (7), and then the resin valve body (8) is assembled, and as the valve body (81) rotates, the valve body It has a butterfly valve configuration that opens and closes the inner flow path.
本発明のＭＪ、遣方法は、バタフライ弁用弁箱の製造に
使用する他、仕切弁における弁箱製造に使用する等、各
種の弁における弁箱製造に使用できる。 そして、弾性
シート（４）としては、軟質ゴムの他、ポリ四７ツ化エ
チンン等の樹脂製のものが使用できる。The MJ and method of the present invention can be used to manufacture valve boxes for butterfly valves, gate valves, etc., and can also be used to manufacture valve boxes for various valves. As the elastic sheet (4), in addition to soft rubber, those made of resin such as polytetratinated ethyne can be used.
図面は本発明に係る樹脂製弁箱の製造方法の実施例を示
し、第１図は弁箱成形伏晦全示す縦断側面図、第２図は
シート装着部の拡大縦断側面図である。 第８図は従来
例の縦断側面図である。
（１）・・・・・・樹脂製弁箱、＋２１ 、１２１ 、
＋３１・・・・・・弁箱成形用型、（４）・・・・・
・弾性シート、（５）・・・・・・補強繊維。The drawings show an embodiment of the method for manufacturing a resin valve box according to the present invention, and FIG. 1 is a longitudinal sectional side view showing the entire valve box molding process, and FIG. 2 is an enlarged longitudinal sectional side view of the seat mounting portion. FIG. 8 is a longitudinal sectional side view of a conventional example. (1) Resin valve box, +21, 121,
+31・・・Mold for molding valve box, (4)・・・・・・
- Elastic sheet, (5)...Reinforcement fiber.
Claims (1)
であって、前記シーＨ４１、及び、補強繊＃ １５１を
弁箱成形用型＋２１ 、１２１ 、 ＋３１内にｊ設置
し−１その後、樹脂＊ ＯｔＪ記型＋２１ 、１２１
、 ＋３１内に加圧注入することを特徴とする樹脂製弁
箱の製造方法。A method for manufacturing a resin valve box (1) equipped with an elastic sheet (4), comprising placing the sheet H41 and reinforcing fiber #151 in valve box molding molds +21, 121, +31. After that, resin *OtJ type +21, 121
, A method for manufacturing a resin valve box, characterized by pressurized injection into +31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58014941A JPS6051411B2 (en) | 1983-01-31 | 1983-01-31 | Manufacturing method of resin valve box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58014941A JPS6051411B2 (en) | 1983-01-31 | 1983-01-31 | Manufacturing method of resin valve box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59140043A true JPS59140043A (en) | 1984-08-11 |
| JPS6051411B2 JPS6051411B2 (en) | 1985-11-13 |
Family
ID=11874979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58014941A Expired JPS6051411B2 (en) | 1983-01-31 | 1983-01-31 | Manufacturing method of resin valve box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6051411B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011190874A (en) * | 2010-03-15 | 2011-09-29 | Sekisui Chem Co Ltd | Valve box for butterfly valve and method of manufacturing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49125041U (en) * | 1973-02-19 | 1974-10-25 |
-
1983
- 1983-01-31 JP JP58014941A patent/JPS6051411B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49125041U (en) * | 1973-02-19 | 1974-10-25 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011190874A (en) * | 2010-03-15 | 2011-09-29 | Sekisui Chem Co Ltd | Valve box for butterfly valve and method of manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6051411B2 (en) | 1985-11-13 |
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