CN101865308A - Rubber-injection sliding spool in pneumatic industry - Google Patents
Rubber-injection sliding spool in pneumatic industry Download PDFInfo
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- CN101865308A CN101865308A CN201010112425A CN201010112425A CN101865308A CN 101865308 A CN101865308 A CN 101865308A CN 201010112425 A CN201010112425 A CN 201010112425A CN 201010112425 A CN201010112425 A CN 201010112425A CN 101865308 A CN101865308 A CN 101865308A
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- rubber
- seal
- sliding spool
- injecting glue
- spool
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Abstract
The invention relates to a rubber-injection sliding spool (also called valve stem) in pneumatic industry. Seal grooves of the aluminum alloy sliding spool and the corresponding closed loop mould-shaped slots constitute an enclosed space; rubber injection forming of a seal ring can be realized by using one-step rubber injection technology; and after carry out cooling and formalization, the injected rubber can be easily demoulded by utilizing the compressibility. Thus, the effects resulting from the invention are as follow: canceling the original O ring and assembling process thereof, being capable of reducing greatly the manufacturing accuracy of the spool seal grooves, ensuring same hardness of the seal rings in the same group due to the adoption of same rubber; not having defects on a sliding seal coupling face of the seal rings; tending to consistent accuracy of the outer diameters of the formed seal rings; shortening whole production cycle; reducing comprehensive cost and the like. As for large-scale, high-accuracy and multiple-specification pneumatic element production industry, the invention can ensure standardization, universalization, seriation and professionalization of the products and conform to the high quality key elements in the prior structure.
Description
A kind of rubber-injection sliding spool in pneumatic industry involved in the present invention (claims again: valve rod).
At present, be provided with on the pneumatic industry sliding spool outer axial face corresponding High-precision O shape rubber seal is installed in many ring-shaped ventilation grooves and seal groove, its seal groove again.Along with the continuous appearance and the development of new material, new process, new technology, have the following disadvantages in existing this structure and the assembling process thereof and have much room for improvement:
One, the assembling amount of O-ring seals is so many, and this is one of defective of particularly paying attention to in enormous quantities, a made with high precision industry.
They are two years old, as everyone knows, " O " shape rubber seal must be used the have joint close die forming of (no matter being 90 ° or 45 ° of assembly lines) in its production process, and this joint close must cause its seal ring of producing to exist burr, overlap and flash its this position (overwhelming majority is used to seal coupling) herein.Though the flaw of this circle can adopt manually again after it was shaped, method such as mechanical, cryogenic freezing (also having damaged its surface molecular structure and degree of finish in a way) throwing string removed, but still the continuity that can not reach desirable sealing coupled face shape face with and the reliability of sealability.
Its three, in order to satisfy the smoothness of its tightness and its slip.Each seal groove sealing coupled face of its aluminum alloy spool must reach very high machining accuracy and surface quality.
Its four, according to what of its guiding valve gas circuit amount, need to install many O shape rubber seal and match on each spool.Its assembling amount is big, in the assembly process O shape circle height that is damaged probability obviously.In case and the sealing coupled face of O shape circle is damaged, its sealability must descend, and gently then causes its leakage, heavy then must cause its stuck with scrap.
Its five, poor, the precision phase mutual deviation and the single-piece precision of the hardness of its used on the same group each O shape circle of this structural requirement are very high.This is one of the harshest use occasion of present known O shape circle quality requirement.
In sum, concerning in enormous quantities a, highi degree of accuracy, many specifications pneumatic element production industry, be badly in need of a kind of standardization of standard, generalization, seriation, specialization and meet the high-quality key member of its existing structure.
Purpose of the present invention is the accuracy of manufacturing, cancellation O shape circle and the assembly process thereof that reduce the seal spool groove, the seal ring external diameter precision that is tending towards after indefectible on identical, the seal ring slipper seal coupled face, the moulding of the hardness of seal ring can be guaranteed unanimity, shortens the whole production cycle, reduce overall cost etc. on the same group.
Above-mentioned purpose of the present invention is realized by following technological scheme.
A kind of rubber-injection sliding spool in pneumatic industry, its mainly comprise aluminum alloy sliding spool and the injecting glue mould of again it being packed in adopt compound injecting glue process to make it to form the compound body of two kinds of materials, wherein should:
Aluminum alloy sliding spool, one end center is provided with gum-injecting port, communicates with each other and be provided with in its body: main running channel, each minute running channel and seal groove;
Compound injecting glue process, each seal groove of aluminum alloy sliding spool and each closed loop mould-shaped slots corresponding with it constitute an enclosed space; Adopt injecting glue technology can realize that just the injecting glue of its each seal ring is shaped, treat to utilize behind the rubber cooling shaping its compressibility can be easily with its demoulding;
There is not any burr, overlap and flash that is caused because of the mould seam in each seal ring on the sealing coupled face of formed each seal ring in the injecting glue recombination process.
Usefulness of the present invention is:
The accuracy of manufacturing of cancelling former O shape circle and assembly process thereof, seal spool groove can greatly reduce, since adopt with a kind of sizing material its on the same group the hardness of seal ring guarantee that the seal ring external diameter precision after indefectible on identical, the seal ring slipper seal coupled face, the moulding can reach unanimity, shorten the whole production cycle, reduce overall cost etc.
For technological scheme of the present invention being easier to understand, described in detail below in conjunction with accompanying drawing:
Description of drawings:
Fig. 1 generalized section of the present invention.
As shown in Figure 1, (claim again: valve rod) it mainly comprises a kind of rubber-injection sliding spool in pneumatic industry of the present invention: gum-injecting port (1), aluminum alloy spool (2), seal groove (3), main running channel (4), branch running channel (5), rubber moulding closed-loop shaped groove (6), seal ring (7)
A kind of rubber-injection sliding spool in pneumatic industry, its mainly comprise aluminum alloy sliding spool (2) and the injecting glue mould of again it being packed in adopt compound injecting glue process to make it to form the compound body of two kinds of materials, wherein should:
Aluminum alloy sliding spool (2), one end center is provided with gum-injecting port (1), communicates with each other and be provided with in its body: main running channel (4), each minute running channel (5) and seal groove (3);
Compound injecting glue process, each seal groove of aluminum alloy sliding spool (2) (3) and each closed loop mould-shaped slots (6) corresponding with it constitute an enclosed space; Adopt injecting glue technology can realize that just the injecting glue of its each seal ring (7) is shaped, treat to utilize behind the rubber cooling shaping its compressibility can be easily with its demoulding;
There is not any burr, overlap and flash that is caused because of the mould seam in each seal ring (7) on the sealing coupled face of formed each seal ring (7) in the injecting glue recombination process.
Claims (1)
- A rubber-injection sliding spool in pneumatic industry (claim again: valve rod), its mainly comprise aluminum alloy sliding spool and the injecting glue mould of again it being packed in adopt compound injecting glue process to make it to form the compound body of two kinds of materials, wherein should:Aluminum alloy sliding spool, one end center is provided with gum-injecting port, communicates with each other and be provided with in its body: main running channel, each minute running channel and seal groove;Compound injecting glue process, each seal groove of aluminum alloy sliding spool and each closed loop mould-shaped slots corresponding with it constitute an enclosed space; Adopt injecting glue technology can realize that just the injecting glue of its each seal ring is shaped, treat to utilize behind the rubber cooling shaping its compressibility can be easily with its demoulding;There is not any burr, overlap and flash that is caused because of the mould seam in each seal ring on the sealing coupled face of formed each seal ring in the injecting glue recombination process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101124253A CN101865308B (en) | 2010-02-23 | 2010-02-23 | Rubber-injection sliding spool in pneumatic industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101124253A CN101865308B (en) | 2010-02-23 | 2010-02-23 | Rubber-injection sliding spool in pneumatic industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101865308A true CN101865308A (en) | 2010-10-20 |
| CN101865308B CN101865308B (en) | 2011-10-26 |
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ID=42957144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101124253A Expired - Fee Related CN101865308B (en) | 2010-02-23 | 2010-02-23 | Rubber-injection sliding spool in pneumatic industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101865308B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626459A (en) * | 2015-01-09 | 2015-05-20 | 芜湖市金贸流体科技股份有限公司 | Rubber coating method for valve element of soft sealing gate valve |
| CN112361071A (en) * | 2020-09-29 | 2021-02-12 | 宁波亨博电磁技术有限公司 | Plastic valve rod and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2172089B (en) * | 1983-03-03 | 1988-12-07 | Mac Valves Inc | Valve spool |
| DE4137805C2 (en) * | 1991-11-16 | 2000-07-06 | Festo Ag & Co | Method for producing a piston valve and device for carrying out the method |
| CN2934819Y (en) * | 2006-07-28 | 2007-08-15 | 皇甫岳伟 | Movable valve core for electromagnetic valve |
| CN101634371A (en) * | 2008-07-24 | 2010-01-27 | 费斯托(中国)有限公司 | Solenoid valve and valve core component thereof |
-
2010
- 2010-02-23 CN CN2010101124253A patent/CN101865308B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626459A (en) * | 2015-01-09 | 2015-05-20 | 芜湖市金贸流体科技股份有限公司 | Rubber coating method for valve element of soft sealing gate valve |
| CN112361071A (en) * | 2020-09-29 | 2021-02-12 | 宁波亨博电磁技术有限公司 | Plastic valve rod and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN101865308B (en) | 2011-10-26 |
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Granted publication date: 20111026 Termination date: 20160223 |