CN103991150A - High-temperature valve seat bush forming mould assembly - Google Patents
High-temperature valve seat bush forming mould assembly Download PDFInfo
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- CN103991150A CN103991150A CN201410255582.8A CN201410255582A CN103991150A CN 103991150 A CN103991150 A CN 103991150A CN 201410255582 A CN201410255582 A CN 201410255582A CN 103991150 A CN103991150 A CN 103991150A
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- valve seat
- temperature valve
- cylinder body
- die assembly
- outer cylinder
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Abstract
The invention belongs to the technical field of valve seat bush manufacturing equipment and particularly relates to a high-temperature valve seat bush forming mould assembly which solves technical problems such as unreasonable prior art. The high-temperature valve seat bush forming mould assembly comprises a circular-barrel shaped central barrel body, wherein the middle part of the central barrel body is provided with a convex ring used for covering an inverted H-shaped pre-forming blank; the periphery of the convex ring is sleeved by joint type outer barrel body; the distance between the inner wall of the joint type outer barrel body and the outer wall of the convex ring is not smaller than thickness of the pre-forming blank; the two ends of the central barrel body are respectively sleeved by end rings; the end rings are used for pressing turnover edge of the pre-forming blank to the end surface of the joint type outer barrel body. Compared with the prior art, the high-temperature valve seat bush forming mould assembly has the advantages of reasonable design, simple and firm structure and long service life, and is capable of sizing the valve-seat bush, convenient to dismount, simple to operate and convenient for use of staff.
Description
Technical field
The invention belongs to valve seat lining manufacturing equipment technical field, especially relate to a kind of high-temperature valve seat pad sleeve forming die assembly.
Background technology
Valve seat is detachable face component in valve, for supporting spool complete shut-down position, and forms sealing pair.General valve-seat diameter is valve maximum flow diameter.Such as the valve seat material of butterfly valve is very extensive, all kinds of rubber, plastics, metal material all can be used as valve seat material, for example: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE etc.Valve seat lining is composition valve seat critical piece, has now in technology, and valve seat lining generally adopts cylindrical shape raw material by lathe turning aftershaping, makes like this that not only manufacturing cost is higher, and the social resources of more wasting do not meet the theory of energy-conserving and environment-protective.Therefore, need a kind of energy-conserving and environment-protective, do not waste the valve seat bush processing technology of social resources, but in prior art, be not applicable to the process equipment that can shape to valve seat lining of this technique.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of reasonable in design, simple in structure, the high-temperature valve seat pad sleeve forming die assembly of the valve seat lining of can shaping.
For achieving the above object, the present invention has adopted following technical proposal: this high-temperature valve seat pad sleeve forming die assembly, it is characterized in that, this die assembly comprises and is central cylinder cylindraceous, there is the bulge loop for the sheathed preformed blank that is I shape at the middle part of central cylinder, described bulge loop outer race is provided with spliced outer cylinder body, and the spacing between spliced outer cylinder body inwall and bulge loop outer wall is not less than preformed blank thickness, described central cylinder two ends are overlapped respectively and are had end ring, and end ring is pressed on turning edge of preformed blank the end face of spliced outer cylinder body.
In above-mentioned high-temperature valve seat pad sleeve forming die assembly, described spliced outer cylinder body comprises that some arc sections and each arc section are spliced into and is spliced outer cylinder body cylindraceous, between adjacent arc section, is connected by demountable structure.
In above-mentioned high-temperature valve seat pad sleeve forming die assembly, described demountable structure comprises the connecting hole that is located in respectively two adjacent arc section ends, and bolt passes successively two connecting holes and is threaded with two connecting holes respectively.
In above-mentioned high-temperature valve seat pad sleeve forming die assembly, the quantity of described arc section is two and two equal semicirculars in shape of arc section.
In above-mentioned high-temperature valve seat pad sleeve forming die assembly, the sidepiece of described spliced outer cylinder body has some through holes.
In above-mentioned high-temperature valve seat pad sleeve forming die assembly, the quantity of described through hole is two and opposite.
In above-mentioned high-temperature valve seat pad sleeve forming die assembly, described end ring has the choke that can insert spliced outer cylinder body towards one end of bulge loop, between described choke and end ring, form the step surface that is pressed on spliced outer cylinder body end face by turning edge, described choke outer wall is affixed on spliced outer cylinder body inwall.
In above-mentioned high-temperature valve seat pad sleeve forming die assembly, the end face of the described end ring other end is not less than the end face of central cylinder.
Compared with prior art, the advantage of this high-temperature valve seat pad sleeve forming die assembly is: 1, reasonable in design, simple in structure, and the valve seat lining of can shaping.2, easy accessibility, simple to operate, be convenient to employee and use.3, sound construction, long service life.
Brief description of the drawings
Fig. 1 is structural representation provided by the invention.
Fig. 2 is sectional structure schematic diagram provided by the invention.
In figure, central cylinder 1, preformed blank 2, bulge loop 21, spliced outer cylinder body 3, end ring 4, arc section 31, connecting hole 32, bolt 33, through hole 3a, choke 41, step surface 42.
Detailed description of the invention
As shown in Figure 1, 2, this high-temperature valve seat pad sleeve forming die assembly, this die assembly comprises and is central cylinder 1 cylindraceous, there is the bulge loop 21 for the sheathed preformed blank 2 that is I shape at the middle part of central cylinder 1, bulge loop 21 outer race are provided with spliced outer cylinder body 3, and the spacing between spliced outer cylinder body 3 inwalls and bulge loop 21 outer walls is not less than preformed blank 2 thickness, central cylinder 1 two ends are overlapped respectively and are had end ring 4, and end ring 4 is pressed on turning edge of preformed blank 2 end face of spliced outer cylinder body 3.
Spliced outer cylinder body 3 comprises that some arc sections 31 and each arc section 31 are spliced into and is spliced outer cylinder body 3 cylindraceous, between adjacent arc section 31, be connected by demountable structure, demountable structure comprises the connecting hole 32 that is located in respectively two adjacent arc section 31 ends, bolt 33 passes successively two connecting holes 32 and is threaded with two connecting holes 32 respectively, the quantity of arc section 31 is two and two equal semicirculars in shape of arc section 31, the sidepiece of spliced outer cylinder body 3 has some through hole 3a, and the quantity of through hole 3a is two and opposite.
End ring 4 has the choke 41 that can insert spliced outer cylinder body 1 towards one end of bulge loop 21, between choke 41 and end ring 4, form the step surface 42 that is pressed on spliced outer cylinder body 3 end faces by turning edge, choke 41 outer walls are affixed on spliced outer cylinder body 3 inwalls, choke 41 outer walls are affixed on central cylinder 1 inwall, and the end face of end ring 4 other ends is not less than the end face of central cylinder 1.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used the terms such as central cylinder 1, preformed blank 2, bulge loop 21, spliced outer cylinder body 3, end ring 4, arc section 31, connecting hole 32, bolt 33, through hole 3a, choke 41, step surface 42 herein, do not got rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (8)
1. a high-temperature valve seat pad sleeve forming die assembly, it is characterized in that, this die assembly comprises and is central cylinder cylindraceous (1), there is the bulge loop (21) for the sheathed preformed blank (2) that is I shape at the middle part of central cylinder (1), described bulge loop (21) outer race is provided with spliced outer cylinder body (3), and the spacing between spliced outer cylinder body (3) inwall and bulge loop (21) outer wall is not less than preformed blank (2) thickness, described central cylinder (1) two ends are overlapped respectively and are had end ring (4), and turning edge of preformed blank (2) is pressed on the end face of spliced outer cylinder body (3) by end ring (4).
2. high-temperature valve seat pad sleeve forming die assembly according to claim 1, it is characterized in that, described spliced outer cylinder body (3) comprises that some arc sections (31) and each arc section (31) are spliced into and is spliced outer cylinder body cylindraceous (3), between adjacent arc section (31), is connected by demountable structure.
3. high-temperature valve seat pad sleeve forming die assembly according to claim 2, it is characterized in that, described demountable structure comprises the connecting hole (32) that is located in respectively adjacent two arc sections (31) end, and bolt (33) passes successively two connecting holes (32) and is threaded with two connecting holes (32) respectively.
4. high-temperature valve seat pad sleeve forming die assembly according to claim 2, is characterized in that, the quantity of described arc section (31) is two and all semicirculars in shape of two arc sections (31).
5. according to the high-temperature valve seat pad sleeve forming die assembly described in claim 1 or 2 or 3 or 4, it is characterized in that, the sidepiece of described spliced outer cylinder body (3) has some through holes (3a).
6. high-temperature valve seat pad sleeve forming die assembly according to claim 5, is characterized in that, the quantity of described through hole (3a) is two and opposite.
7. according to the high-temperature valve seat pad sleeve forming die assembly described in claim 1 or 2 or 3 or 4, it is characterized in that, described end ring (4) has the choke (41) that can insert spliced outer cylinder body (1) towards one end of bulge loop (21), between described choke (41) and end ring (4), formation will turn edge and be pressed on the step surface (42) of spliced outer cylinder body (3) end face, and described choke (41) outer wall is affixed on spliced outer cylinder body (3) inwall.
8. high-temperature valve seat pad sleeve forming die assembly according to claim 7, is characterized in that, the end face of described end ring (4) other end is not less than the end face of central cylinder (1).
Priority Applications (1)
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CN201410255582.8A CN103991150B (en) | 2014-06-10 | 2014-06-10 | High-temperature valve seat bush forming mould assembly |
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CN201410255582.8A CN103991150B (en) | 2014-06-10 | 2014-06-10 | High-temperature valve seat bush forming mould assembly |
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CN103991150A true CN103991150A (en) | 2014-08-20 |
CN103991150B CN103991150B (en) | 2017-01-18 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4668460A (en) * | 1985-04-02 | 1987-05-26 | The Sherwin-Williams Company | Method of molding and coating a substrate in a mold. |
US4874654A (en) * | 1987-06-15 | 1989-10-17 | Nippon Sheet Glass Co., Ltd. | Vehicle window glass |
CN102632578A (en) * | 2012-03-21 | 2012-08-15 | 东阳市四达氟塑有限公司 | Polytetrafluoroethylene isostatic pressure molding device and pipeline lining method by aid of same |
CN203579982U (en) * | 2013-09-23 | 2014-05-07 | 富顺县众城氟塑料厂 | T-shaped polytetrafluoroethylene tube forming mold |
CN203945537U (en) * | 2014-06-10 | 2014-11-19 | 德清三盛氟塑科技有限公司 | High-temperature valve seat pad sleeve forming die assembly |
-
2014
- 2014-06-10 CN CN201410255582.8A patent/CN103991150B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4668460A (en) * | 1985-04-02 | 1987-05-26 | The Sherwin-Williams Company | Method of molding and coating a substrate in a mold. |
US4874654A (en) * | 1987-06-15 | 1989-10-17 | Nippon Sheet Glass Co., Ltd. | Vehicle window glass |
CN102632578A (en) * | 2012-03-21 | 2012-08-15 | 东阳市四达氟塑有限公司 | Polytetrafluoroethylene isostatic pressure molding device and pipeline lining method by aid of same |
CN203579982U (en) * | 2013-09-23 | 2014-05-07 | 富顺县众城氟塑料厂 | T-shaped polytetrafluoroethylene tube forming mold |
CN203945537U (en) * | 2014-06-10 | 2014-11-19 | 德清三盛氟塑科技有限公司 | High-temperature valve seat pad sleeve forming die assembly |
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CN103991150B (en) | 2017-01-18 |
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