JPS5922607B2 - Metal sheet manufacturing method - Google Patents
Metal sheet manufacturing methodInfo
- Publication number
- JPS5922607B2 JPS5922607B2 JP1731481A JP1731481A JPS5922607B2 JP S5922607 B2 JPS5922607 B2 JP S5922607B2 JP 1731481 A JP1731481 A JP 1731481A JP 1731481 A JP1731481 A JP 1731481A JP S5922607 B2 JPS5922607 B2 JP S5922607B2
- Authority
- JP
- Japan
- Prior art keywords
- metal sheet
- valve body
- free end
- valve
- end side
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
- B21D53/18—Making other particular articles rings, e.g. barrel hoops of hollow or C-shaped cross-section, e.g. for curtains, for eyelets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Gasket Seals (AREA)
- Sealing Devices (AREA)
Description
【発明の詳細な説明】
本発明は、湾曲状シート取付部を備える弁体あるいは弁
箱に、遊端側の撓み変形を許容するために片持ち状態で
取付けるメタルシートの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a metal sheet that is attached to a valve body or a valve box having a curved seat attachment portion in a cantilevered manner to allow for bending deformation on the free end side.
上記メタルシートは、その遊端側の撓み変形によつて弁
箱あるいは弁体に十分圧接できてシール性を向上できる
ものであるが、そのメタルシートを得るのに、湾曲構成
のために、金属板の曲げ加工によつて製造する事が困難
で、従来一般に、比較的厚肉の半円状あるいは円状の帯
状金属板に対する削り出しによつて製造しており、その
製造に多大な手間を要し、それに伴つて高価になつてい
た。The above-mentioned metal sheet can be sufficiently pressed against the valve body or valve body due to the bending deformation of its free end side, and can improve sealing performance. It is difficult to manufacture by bending a plate, and conventionally it has been generally manufactured by machining a relatively thick semicircular or circular band metal plate, which takes a lot of time and effort. However, it has also become expensive.
本発明は、上記の点に鑑み、上述メタルシートを容易か
つ安価に製造する方法を提供することを目的とする。In view of the above points, an object of the present invention is to provide a method for easily and inexpensively manufacturing the above-mentioned metal sheet.
次に、本発明方法を例示図に基づいて説明する。Next, the method of the present invention will be explained based on illustrative drawings.
断面形状トラック状のパイプ１を円状に曲げ加工し、そ
の後、第１図に示すように、パイプ１を、その長手方向
に沿う分割面Ｆで切断処理し、夫々、円弧状断面を有す
る外周側部分２と内周側部分３とに分割し、前記外周側
部分２をして弁体に対するメタルシートを、そして、内
周側部分３をして弁箱に対するメタルシートを得る。次
に、使用例を説明すれば、第２図及び第３図に示すよう
に、湾曲状シート取付部４を備える弁体５を弁箱６に回
転自在に設けた偏芯バタフライ弁において、前記シート
取付部４に、前記外周側部分２の径方向に向かう平面部
分２ａの内周端側を片持ち状態で取付け、他方、遊端側
部分２ｂを弁体５の外周面の径方向外方に隙間の有る状
態で位置させ、弁箱側シートＴへの圧接に伴い、前記遊
端側部分２ｂを弾性挾み変形させ、全閉状態でのシール
を確実に図れるようにするものである。A pipe 1 having a track-shaped cross section is bent into a circular shape, and then, as shown in FIG. It is divided into a side part 2 and an inner part 3, the outer part 2 is used to obtain a metal sheet for the valve body, and the inner part 3 is used to obtain a metal sheet for the valve body. Next, to explain an example of use, as shown in FIGS. 2 and 3, in an eccentric butterfly valve in which a valve body 5 having a curved seat mounting portion 4 is rotatably provided in a valve body 6, The inner circumferential end side of the radially extending flat portion 2a of the outer circumferential side portion 2 is attached to the seat mounting portion 4 in a cantilevered state, while the free end side portion 2b is attached radially outward of the outer circumferential surface of the valve body 5. The valve body side portion 2b is positioned with a gap between the valve body side seat T and the free end side portion 2b is elastically deformed as it is pressed against the valve box side seat T, thereby ensuring a seal in the fully closed state.
尚、前記外周側部分２を弁体５に取付けるに、第４図に
示すように、弁体５の外周面との間に可撓性のシートプ
ロテクタ８を設け、遊端側部分２ｂと弁体５間の隙間に
、流体中に混入される固形分が入り込んで沈着堆積する
事を防止できるように構成するとか、第５図に示すよう
に、上述実施例における０−リング９に代えて耐熱性パ
ッキン１０を介装するとか、あるいは、第６図及び第１
図夫夫に示すように、弁体５自体あるいは取付ボルト１
１との接当部を反力点として調節ボルト１２の固定位置
調節により遊端側部分２ｂの弁体５に対する取付姿勢を
調節自在に取付ける等、その取付構造は各種の変形が可
能である。第８図は弁箱６に対する使用例を示し、弁箱
６内の流路側に膨出された湾曲状シート取付部１４に、
前記内周側部分３の径方向に向かう平面部分３ａの外周
端側を取付け、かつ、遊端側部分３ｂを弁箱６の内周面
の径方向外方に隙間の有る状態で位置させ、弁体側シー
ト１３との圧接に伴い、遊端側部分３ｂを弾性撓み変形
させ、全閉状態でのシールを確実に図れるようにしてあ
る。In addition, when attaching the outer peripheral side portion 2 to the valve body 5, as shown in FIG. 4, a flexible sheet protector 8 is provided between the outer peripheral surface of the valve body 5 and the free end side portion 2b is As shown in FIG. 5, the O-ring 9 in the above-mentioned embodiment may be replaced with a structure that can prevent solids mixed into the fluid from entering the gap between the bodies 5 and being deposited. By interposing a heat-resistant packing 10, or by inserting a heat-resistant packing 10, or by
As shown in the diagram, the valve body 5 itself or the mounting bolt 1
The mounting structure can be modified in various ways, such as by adjusting the fixing position of the adjustment bolt 12 using the abutting portion with the valve body 1 as a reaction force point, so that the mounting posture of the free end portion 2b relative to the valve body 5 can be adjusted. FIG. 8 shows an example of use for the valve box 6, in which a curved seat mounting portion 14 bulging toward the flow path inside the valve box 6 is
Attaching the outer peripheral end side of the flat portion 3a facing in the radial direction of the inner peripheral side portion 3, and positioning the free end side portion 3b radially outward of the inner peripheral surface of the valve body 6 with a gap, As the free end portion 3b comes into pressure contact with the valve body side seat 13, the free end portion 3b is elastically deformed to ensure sealing in the fully closed state.
尚、本発明におけるパイプ１としては、第９図に示すよ
うに、断面形状が真円あるいはほぼ真円のものを用い、
それを切断してメタルシートを得、第１０図に示すよう
に、弁体５の湾曲状シート取付部４に一端側を溶接によ
つて片持ち状態で取付ける等、パイプ１の断面形状は各
種の変更が可能であり、又、一対の弁棒軸受部間にわた
る半内部分を各別に得る場合に応対するために、パイプ
１を半円状に曲げた状態で切断するものでも良い。In addition, as the pipe 1 in the present invention, as shown in FIG. 9, the cross-sectional shape is a perfect circle or almost a perfect circle,
The cross-sectional shape of the pipe 1 can be made in various shapes, such as cutting it to obtain a metal sheet, and attaching one end side to the curved seat attachment part 4 of the valve body 5 in a cantilevered state by welding, as shown in FIG. Alternatively, the pipe 1 may be cut in a semicircular state in order to obtain separate half-inner portions extending between a pair of valve stem bearings.
前記パイプ１に対する分割面Ｆとしては、得るべきメタ
ルシートの形状に合わせて適宜設定すれば良いものであ
り、又、切断後にプレス加工や表面仕上げ等、適宜後処
理を加えても良い。本発明によつて得られたメタルシー
トは、バタフライ弁に限らず、例えばボール弁等、要す
るに、弁体５あるいは弁箱６に湾曲状シート取付部４，
１４を備える弁であれば適用できる。The dividing plane F for the pipe 1 may be appropriately set according to the shape of the metal sheet to be obtained, and post-processing such as press working or surface finishing may be appropriately applied after cutting. The metal sheet obtained by the present invention is applicable not only to butterfly valves but also to ball valves, etc.
Any valve equipped with 14 can be applied.
以上要するに、本発明は、冒記したメタルシートの製造
方法において、パイプ１を半円状あるいは円状に曲げた
後にその長手方向に沿う分割面Ｆで切断する事を特徴と
する。In summary, the present invention is characterized in that, in the above-mentioned metal sheet manufacturing method, the pipe 1 is bent into a semicircular or circular shape and then cut along the dividing plane F along the longitudinal direction.
パイプ１を有効利用し、それに対する曲げとその後の切
断によつてメタルシート２，３を得るから、従来の金属
板の曲げや削り出しに比べ、大幅に容易かつ能率よくメ
タルシート２，３を製造できると共に製造コストを大幅
に低減してメタルシート２，３を安価に提供できるよう
になつた。Since the metal sheets 2 and 3 are obtained by effectively utilizing the pipe 1 and bending it and then cutting it, the metal sheets 2 and 3 can be produced much more easily and efficiently than the conventional bending and cutting of metal plates. It has become possible to manufacture the metal sheets 2 and 3 at low cost by significantly reducing the manufacturing cost.
図面は本発明に係るメタルシートの製造方法の実施の態
様を例示し、第１図は製造工程を説明する斜視図、第２
図は偏芯バタフライ弁の横断面図、第３図は第２図の−
線断面図、第４図ないし第７図は夫々取付構造の変形例
を示す断面図、第８図は弁箱に対するメタルシート取付
状態を示す断面図、第９図は別実施例を示す斜視図、第
１０図は弁体への取付状態を示す断面図である。
１・・・・・・パイプ、４，１４・・・・・・湾曲状シ
ート取付部、５・・・・・・弁体、６・・・・・・弁箱
、Ｆ・・・・・・分割面。The drawings illustrate an embodiment of the method for manufacturing a metal sheet according to the present invention, and FIG. 1 is a perspective view illustrating the manufacturing process, and FIG.
The figure is a cross-sectional view of an eccentric butterfly valve, and Figure 3 is the − of Figure 2.
4 to 7 are cross-sectional views showing modified examples of the mounting structure, FIG. 8 is a cross-sectional view showing how the metal sheet is attached to the valve box, and FIG. 9 is a perspective view showing another embodiment. , FIG. 10 is a sectional view showing the state of attachment to the valve body. 1... Pipe, 4, 14... Curved seat attachment part, 5... Valve body, 6... Valve box, F...・Divided surface.
Claims (1)
は弁箱６に、遊端側の撓み変形を許容するために片持ち
状態で取付けるメタルシートの製造方法であつて、パイ
プ１を半円状あるいは円状に曲げた後にその長手方向に
沿う分割面Ｆで切断する事を特徴とするメタルシートの
製造方法。1. A method for manufacturing a metal sheet that is attached in a cantilevered manner to a valve body 5 or a valve box 6 equipped with curved seat attachment parts 4 and 14 in order to allow bending deformation on the free end side, in which the pipe 1 is attached in a semicircular manner. A method for producing a metal sheet, which comprises bending the sheet into a shape or a circle, and then cutting the sheet along a dividing plane F along its longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1731481A JPS5922607B2 (en) | 1981-02-05 | 1981-02-05 | Metal sheet manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1731481A JPS5922607B2 (en) | 1981-02-05 | 1981-02-05 | Metal sheet manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57130732A JPS57130732A (en) | 1982-08-13 |
| JPS5922607B2 true JPS5922607B2 (en) | 1984-05-28 |
Family
ID=11940545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1731481A Expired JPS5922607B2 (en) | 1981-02-05 | 1981-02-05 | Metal sheet manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5922607B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2960935B1 (en) * | 2010-06-04 | 2012-06-08 | Ksb Sas | TWO-PIECE SEAL VALVE |
| KR101458735B1 (en) * | 2014-01-10 | 2014-11-05 | 강희숙 | Disk of disk valve possessed metal cushion ring |
| JP6523734B2 (en) * | 2015-03-27 | 2019-06-05 | 株式会社栗本鐵工所 | Butterfly valve |
| JP6692167B2 (en) * | 2016-01-22 | 2020-05-13 | 株式会社栗本鐵工所 | valve |
-
1981
- 1981-02-05 JP JP1731481A patent/JPS5922607B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57130732A (en) | 1982-08-13 |
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