TW454078B - Manufacturing method of one-piece flange-type ball valve seat shaped by forging and improved structure manufactured by the same - Google Patents

Abstract

The present invention relates to a manufacturing method of one-piece flange-type ball valve seat shaped by forging and improved structure manufactured by the same. The profile of a conventional one-piece flange-type ball valve seat is taken as a model to forge the one-piece flange-type ball valve seat to shape blanks of a water inlet seat and a ball valve seat. The water inlet seat includes a water inlet hole having a shaped interior and a left tube connection part. The ball valve seat includes a ball valve chamber having a shaped interior and a water outlet hole communicated therewith, and a right tube connection part. Therefore, the external combination part of the front of the water inlet seat and the ball valve chamber in the ball valve seat are relative shallow, thereby making the processing easier. The terminal face of the combination part of the water inlet seat is processed by a lathe to have a left water stop washer chamber. The outer side of the combination part is also processed to have an external screw thread section. In addition, in the connection hole in the front of the ball valve chamber of the ball valve seat, an internal screw thread section is formed by processing to screw onto the external screw thread section of the water inlet seat. On the terminal face where the water outlet hole communicates with the ball valve chamber, a right water stop washer chamber is formed by processing, which is further drilled to process a handle fixing hole so that the left and right water stop washers are embedded into the left and right water stop washer chambers. Thereafter, a ball valve is placed in the ball valve chamber. With the external screw thread section of the combination part of the water inlet seat in conjunction with the screw fixing agent, the ball valve is locked into the internal screw thread section of the connection holes of the ball valve seat, and thus the left and right water stop washer is just against the two sides of the arc surface of the ball valve, thereby reaching a strength capable of maintaining the shape by forging, avoiding the generation of sand holes, increasing the yield rate, easily manufacturing the products, decreasing the waste of material, reducing the cost, decreasing the manufacture of components, and shortening the working-hour.

Description

4 54 0 7 8 A 7 B7 V. Description of the Invention (/) The present invention relates to a method for manufacturing a one-piece flanged ball valve seat body using a satin forming method and its improved structure. The appearance of the blue-type ball valve seat body is basket-shaped, and one piece flange ball valve seat body is straight > ... forged into a water inlet and a ball valve seat south part of the original embryo; and the inlet The water seat includes an internally formed water inlet hole and the left pipe connection portion; the ball valve seat includes an internally formed ball valve accommodation chamber and a water outlet hole communicating therewith * M and i the right pipe connection portion, so that the joint of the water inlet seat The inner part of the ball valve housing with the ball seat is easy to process. * The end face of the joint of the water seat is machined with a left water retaining washer. And the outer part of the joint is also formed with an external thread section. The ball valve of the ball seat is Inside the connecting hole at the front of the receiving chamber, it will be processed and formed—internal threaded section • It can be screwed with the external threaded section of the water inlet seat * and located on the end of the connection between the outlet hole and the ball valve receiving chamber. Cushion accommodating slot For the left and right water retaining rings, insert the left and right water washer receiving grooves. * Place a ball valve in the ball valve accommodation room. * Pass the outer thread section of the water seat joint and lock the ball valve seat with the screw fixing agent.固定 The inner screw section of the connection hole is fixed, so that the left and right water cushions are printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). The ring just abuts on the arc surface of the ball valve * Μ on both sides to achieve the strength of the dimensional forging and avoid the generation of sand holes, reduce the defect rate, easier to process and assemble, reduce material waste, reduce costs, and can reduce the production of parts and shorten the manufacturing man-hours. According to the general metal ball valve seat body, most of them are made by sickle forming method. Because of its paving shape, a one-piece flange ball valve seat body can be integrally formed, and most of the initial embryo has been formed inside and outside after molding. As long as the various parts are processed and drilled, the ball valve seat body can be completed; however, the sickle is shaped, and its paper size is free from the Chinese National Standard (CNS) A4 specification (2! 0 × 297 mm)

4 54 07 B A7 B7__ V. Description of the invention (>) (Please read the precautions on the back before filling this page) The material is prone to generate air bubbles. In order to reduce the sand holes generated by the air bubbles on the surface, it is necessary to mold The primordial embryo is thickened, and then the primordial embryo is processed inside and outside to the desired thickness: the thickness of the primordial embryo can reduce the generation of sand holes, which is a waste compared to the material to be removed: & The sand holes cannot be completely avoided, so * The defective rate is always high. If the defective product is left in the market, it often causes leakage. The fire caused by the gas explosion or repair will be unavoidable, and the disasters caused by it will be seen from time to time. Printed by the Consumer Cooperative of the Central Bureau of Standards, Ministry of Economic Affairs due to the lack of the aforementioned ball valve in the sickle manufacturing, the industry is trying to forge the ball valve seat body * K to eliminate the regret of the occurrence of sand holes; it is M, see The first picture shows: the original embryo A produced by the industry using a forged one-piece flanged ball valve. In order to achieve the purpose of integral molding, it is achieved by the M horizontal forging technology. The mold can be opened smoothly, and then the ejection angle must be set in the crossbar, so that the vertical mold edge A 1 is formed at each vertical edge of the embryo, the mold is opened, and the mold is a piece after molding. The flange type ball valve seat body A cannot form the necessary water inlet and outlet holes A2, A3 and the ball valve accommodation chamber A4 at the same time. Therefore, the M-type flange ball seat body A is formed from the original embryo. For the solid state, the inside must be removed according to the shape of the ball valve seat body, such as the dotted line A5 *. Please refer to the second figure to show: Ball valve B positioning A plug C, and an outer screw segment C 1 and the front end are also processed to form a right water stop accommodating groove C 2; and it is located at the bottom end of the ball valve accommodation chamber A4, and a left water stop washer is required to be processed to accommodate Slot A4 1 * Suifi: It must be processed into a very deep bottom, and then processed in that depth • It is conceivable that this paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) 4 5 4 0 7 t A7 B7 Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention ㈠) It is quite difficult, obviously the processing is extremely difficult; then K is used to plug the screw segment C outside C, and it is also fitted with a screw fixative lock Into the inner screw section A 3 1 of the water outlet hole A 3 on the right side of the one-piece flanged ball valve seat body A, so that the plug C is water-stopped...... On the arc of the ball valve B; due to the conventional structure ** ....... *, the plug C is indispensable for a one-piece flanged ball valve seat, so the manufacturing and processing are added The cost and time of checking plug C; therefore * Knowing whether one piece of flanged ball valve seat body is sickle or forged, the cost of materials used is extremely , The weight of the lotus in processing will cause inconvenience in processing, and ......... It is also relatively complicated in processing procedures, and it will cause waste of materials; if the satin shape is used to solve the sickle shape, However, due to the high material cost, time-consuming processing, and high relative price, it is a regret that users cannot use it when they are timid by users. When it is necessary to further improve its manufacturing method, it is necessary. However, in view of the foregoing shortcomings, the inventor gathered many years of experience in manufacturing ball valve seat bodies, worked hard, and finally got rid of the general manufacturing method, and developed the present invention, and then filed an application for an invention patent. The main purpose of the present invention is to provide a method for manufacturing a forged one-piece flanged ball valve seat body and its improved structure. The external appearance of the known one-piece flanged ball valve seat body is based on the blueprint. The flange type ball valve seat body is directly forged to shape the original embryo of a water inlet seat and a ball valve seat; and the water inlet seat includes an internally formed water inlet hole and a left pipe connection portion; the ball valve seat includes The internally formed ball valve accommodating chamber and the water outlet hole communicating with it, K and a right pipe connection; 俾 The joint for the front end of the water inlet seat and the ball valve accommodating chamber inside the ball valve seat are relatively shallow. Make the knot of the water inlet (please read the precautions on the back before filling this page) 〇 Alignment-This paper size applies to China National Standard (CNS) Α4 specification (210X297 mm)

4 54 Ο 7 Printed by the Central Bureau of Standards, Ministry of Economic Affairs, Shelley Consumer Cooperation, Du printed A7 Β7 V. Description of the invention (ψ) The left water-seal gasket receiving groove and external thread section processed on the end surface and the outer side of the joint are extremely easy to process and form. Ball valve seat ball valve housing chamber connecting screw inside the front hole, the groove and the right water washer housing groove on the end of the connection between the water outlet and the ball valve housing chamber are also very easy to form; therefore, the processing speed is fast * and Can reduce the defective rate and material waste, and can reduce inventory. Still another object of the present invention is to provide a method for manufacturing a one-piece flanged ball valve seat body using a forged mold and an improved structure thereof; forging a one-piece flanged ball valve seat body into one piece by using the M forging method; The initial embryo of the two parts of the water seat and a ball valve seat makes the water inlet hole of the water inlet seat and the hole diameter of the ball valve seat equivalent. The ball valve is placed in the ball valve accommodation chamber and is directly blocked by the water stop pad. Then, the joint of the water inlet seat is locked into the connection hole of the ball valve seat, so that the water stop washers on the two sides are pressed tightly to the ball valve, and M achieves a fast combination, and can reduce the parts of the plug and its processing time. Those who get benefits with reduced cost and bad rate. For the remainder, we will elaborate on the manufacturing method, structure, and operation of the present invention in conjunction with the illustrations, which will be described in detail below: The parts of the diagrams and figures refer to: (1) The parts of the diagrams: First Figure: This is a conventional one-piece flanged ball valve seat body, which is a schematic cross-sectional schematic diagram of the forged primary embryo and the processing required. The second picture: It is a schematic sectional view of a part of the conventional one-piece flanged ball valve seat body and plug before assembly after processing. The third figure is a schematic sectional view of a part of a conventional one-piece flanged ball valve seat. The scale of this paper applies the Chinese National Standard (CNS) Α4 specification (2ΐ〇χ297mm) (please read the precautions on the back before filling out this page) 11 11 Practice Λ 4 54 0 7 A7 B7 V. Description of the invention (5) The fourth figure is a schematic cross-sectional view of the primary embryos of the main parts of the flange type ball valve seat body forged according to the present invention. Fifth figure: It is a schematic cross-sectional view of the main parts of the one-piece flanged ball valve seat body after processing according to the present invention. FIG. 6 is a schematic sectional view of a part of a flanged ball valve seat body assembly according to the present invention. (II) Symbol part: (Please read the notes on the back before filling out this page) Printed by the Central Laboratories of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives (a) Knowing part: — Flange type ball valve seat A Draft angle A 1 Water inlet hole A 2 Water outlet hole A 3 Inner teeth section A 3 1 Ball valve accommodation chamber A4 (b) Part of the present invention: Water inlet seat 1 Water inlet hole 1 1 Left pipe connection portion 12 Joint portion 1 3

Left water washer receiving groove 131 Male thread segment 1 3 2 Ball valve seat 2 Ball valve receiving chamber 21 connection hole 211 Left water washer receiving groove A41 Broken line part A5 Ball valve B Plug C External screw segment C1 Right water washer receiving groove C 2 Right water retaining washer receiving groove 212

1 I

Internal thread section 2111 Outlet hole 2 2 Right pipe connection 23 Handle fixing hole 3 Left water stop pad 圏 4 Right water stop pad 圏 4 Ball valve E This paper size applies to Chinese National Standard (CNS) A4 spider grid (21〇χ297 mm) ) 4 54 0 7 A7 B7 V. Description of the invention (i?) The fourth picture: is a schematic cross-sectional view of the primary embryos of the main parts of the flange type ball valve seat body forged according to the present invention. The fifth figure is a schematic cross-sectional view of the main parts of the one-piece flanged ball valve seat according to the present invention after processing. Figure 6: This is a sectional view of one piece of flanged ball valve seat body assembly printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). (II) Symbol part: (a) Known content: One-piece flanged ball valve seat body A Withdrawal mold slope A 1 Water inlet hole A 2 Water outlet hole A 3 Inner tooth segment A 3 1 Ball valve accommodation room A4 ( b) Part of the present invention: water inlet 1 ice inlet 1 1 left pipe connection portion 12 joint portion 1 3

Left stop washer accommodating slot 131 Male thread section 1 3 2 Ball valve seat 2 Ball valve accommodation chamber 21 connection hole 211 Left stop washer accommodating slot A41 Broken line part A5 Ball valve B Plug C Outer thread section C1 Right stop ring accommodating Slot C2 Right water retaining washer receiving groove 212 Internal thread section 2111 Water outlet 2 2 Right pipe connection 2 3 Handle fixing hole 3 Left water ring 4 Right water ring 4 ~

Ball valve E This paper size is in accordance with Chinese National Standard (CNS) A4 specification (21〇 > < 297mm) 〇 Α7 Β7 V. Description of the invention (7) First, please refer to the fourth figure: The flange-type ball valve seat body is directly forged into two parts of the first embryo of a water inlet seat 1 and a ball valve seat 2; and the water inlet reservoir 1 includes an internally shaped water inlet hole 11 and a left pipe • '*, A connecting portion 12; the ball valve seat 2 includes an internally formed ball valve accommodation chamber 21 and a water outlet 2 2 communicating with the ball valve seat 2 and a right tube connecting portion 2 3; It will be processed separately to shorten the time and material for adding i; please refer to the fifth and sixth figures: the front end of the water inlet 1 ·. · · ... the outer joint 13 and the ball valve seat 2 The inner ball 阙 accommodating chamber 21 has been relatively simple to make processing easier; 俟, the joint portion 1 3 of the water inlet 1 has a left stop washer accommodating groove 1 3 1 and the joint portion 1 3 The outer side is also processed to form an external thread segment 13 2; In addition, the ball valve housing chamber 2 of the ball valve seat 2 is inside the front end connection hole 2 1 1, and then an internal thread is processed and formed. Section 2 1 1 1 so that it can be screwed with the external thread section 1 3 2 of the water inlet seat 1 and located on the end of the connection between the water outlet 2 2 and the ball valve accommodation chamber 2 1. It is also processed into plastic one @ 止水Washer accommodating groove 2 1 2 • Re-drill one-handle fixing hole 3, for left and right water retaining ring 4, 4 / embedded, right water retaining ring accommodating groove 1 3 1, 2 1 2 A ball valve E is placed in the accommodating chamber 21, and passes through the external thread section 1 3 2 of the joint portion 1 3 of the water inlet seat 1, and is screwed into the inner screw section of the connection hole 2 1 1 of the ball valve seat 2 with a screw fixing agent. 2 1 1 1 Fix so that the left and right water washers 4, 4 / just abut on both sides of the arc surface of the ball valve E, M to maintain the forging strength.....: To avoid sand holes, Reduce the defective rate, easier to process, reduce material waste, reduce costs, and can reduce the production of parts and shorten manufacturing 3 & Chen This paper size applies to Chinese national standards (CNS > Α4 size (210X297)) (Please read the notes on the back and fill in this page) .1 Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs

V. Description of the invention ((Γ) Please refer to Figures 5 and 6 again: when a one-piece flanged ball valve seat body is separately forged, a water inlet 1 and a ball valve seat 2 are formed. At the beginning, the diameter of the water inlet hole 11 of the quasi-water seat 1 is equal to the hole diameter of the water outlet hole 21 of the ball valve seat 2. The ball valve E is placed in the ball valve accommodation chamber 21, and straight ... —- .. Connected with the water-proof gasket 4 of the water outlet hole 2 > and then lock the joint 1 1 of the water inlet seat 1 into the connection hole 2 1 1 of the ball valve seat 2 to stop the water on both sides塱 Circle of today and 4, respectively, are tight to the ball valve E, and M achieves a fast combination, which can reduce the parts of the plug and the processing time it consumes, and obtain the benefits of reducing the cost and the defective rate. In summary, The present invention applies a forging method to forge a one-piece flanged ball valve seat body into a water inlet seat and a ball valve seat, which facilitates processing, saves materials, and effectively saves the sand holes of the conventional sickle. The disadvantages of burrs and the waste of conventional forged materials and the complicated processing make the invention improve the productivity and quality of the invention, reduce the defect rate, increase the productivity and reduce Low cost * can increase the market-./. The market share is in line with the patent law to promote the development of the industry. We sincerely hope that the company can grant the establishment of a legal patent right, and even feel virtuous. + (Please first (Read the notes on the back and fill out this page)

../IT Central Standards Bureau of the Ministry of Economic Affairs—industrial and consumer cooperatives

Claims (1)

7. Scope of patent application 1. A method for manufacturing a one-piece flanged ball valve seat body using forging; the known one-piece flanged ball bearing seat is based on the model, and forging is used to obtain the required main parts The combination method includes: (a) directly forging a one-piece flanged ball valve seat body into an initial seat of a water inlet seat and a ball valve seat; the water inlet seat includes The internally shaped water inlet and left pipe connection; the ball valve seat includes the internally shaped ball valve accommodation chamber and the water outlet hole communicating with it * and a right pipe connection; (b) the end face of the joint of the water inlet seat M The lathe machined a left retaining ring receiving groove, and an externally threaded section was also formed on the outside of the joint; (c) the ball valve seat's ball valve receiving chamber front end connecting hole * was processed and formed into an internally threaded section, which was located in the outlet On the end face where the hole is connected to the ball valve receiving chamber, a right water-seal gasket receiving groove is also formed, and the iron hole is processed with a handle fixing hole. (D) The left and right water-seal gaskets are inserted into the left and right water-seal gasket receiving grooves. In the ball valve housing Place a ball valve and print it through the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs of the Ministry of Foreign Economic Affairs through the joint of the water inlet seat (please read the precautions on the back before filling this page). The inner screw segment of the connection hole is fixedly combined, so that the left and right water retaining rings just rest on both sides of the arc surface of the ball valve, and K forms a one-piece flanged ball valve seat body that is integrally forged; therefore, by The processing combination of the forged two seat bodies can maintain the strength, can still avoid the generation of sand holes, reduce the defect rate, easier to process and assemble, reduce material waste, reduce costs, and can reduce the production of parts and shorten the manufacturing man-hours. Economic benefits. This paper size applies to China National Standard (CNS) A4 (210X297 mm) 4 5 4 L / Α8 " Β8 C8 __.__ D8_________ 6. Application for patent scope 2. — One-piece flanged ball valve seat forging Improved structure of the body; the one-piece flanged ball valve seat body is separately forged and integrated into a preform of the water inlet seat and the 7-ball valve seat; the special features are:-. A water inlet seat; its combination There is a left stopper 塾 圏 receiving groove on the end surface, and there is also an external thread section on the outside of the Μ and the joint # 卩, and a water inlet hole is set in the inside; a ball valve seat; The internal thread section * is located on the end surface where the water outlet hole is connected to the ball valve accommodation chamber. A right water retaining washer receiving groove is provided so that the ball valve can be inserted into the ball valve accommodation chamber through the connection hole and stops at the position of the right water retaining collar receiving groove. ; Therefore, when the two water stop plastic rings are respectively inserted into the left and right water stop ring accommodating inner grooves for positioning, then the joint of the water inlet seat is locked into the connection hole of the ball valve seat, so that the water stop washers on both sides respectively Urgent, M reaches combination quickly and can be reduced Qian parts and part of the consumption of processing time, to serve and to obtain cost benefits by reducing the defect rate ...... all. (Please read the notes on the back before filling this page) Order; · Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs