Batch valve core air-tightness test
Technical field
The present invention relates to a kind of batch valve core air-tightness test, be mainly used in the valve inside production scene to detecting the detection of valve inside opening pressure.
Background technology
Valve inside manufacturing enterprise in the valve inside production scene or the laboratory need to quick and precisely measure the valve inside opening pressure, and then judge whether valve inside qualified.Traditional valve inside opening pressure detecting device need to be screwed valve inside into the inflating valve core chamber, and then tests, and whole process need one is screwed operation, and complicated operation, inefficiency can not satisfy the demand of mass, fast detecting.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of batch valve core air-tightness test of simple to operate, high efficiency is provided.
The object of the present invention is achieved like this: a kind of batch valve core air-tightness test, and it comprises pressing machine body, cope match-plate pattern, lower bolster, exhaustion plate and tank;
Described cope match-plate pattern is fixed on workplace on the pressing machine body, described tank is arranged on the lower workplace of pressing machine body, described tank top is provided with exhaustion plate, be evenly equipped with a plurality of gas outlets on the described exhaustion plate, described gas outlet is inserted under the liquid level in the tank, described bottom of gullet is provided with level crossing, and described tank at least sightingpiston simultaneously makes for transparent material;
Be equipped with spring and slide block from top to bottom in the upper nib of described cope match-plate pattern, offer the through hole that passes through for the valve inside core bar on the described slide block;
The lower nib of described lower bolster is through hole, and the internal diameter of described lower nib and the plug washer of valve inside closely cooperate;
The position of described upper nib, lower nib and gas outlet is mutually corresponding.
It also comprises guide plate and sieve plate;
Be uniform-distribution with the tapered opening through hole on the described guide plate, described each through hole just can hold core bar and the core cap position of valve inside, and described guide plate lead to the hole site is corresponding one by one with the lower die hole location of described lower bolster;
Be uniform-distribution with tapered opening through hole of the same size on the described sieve plate, and each through hole just can hold next valve inside, the position of described sieve plate through hole is corresponding one by one with the position of the through hole of guide plate.
The preferred version of described tank is that wall is that transparent material makes all around.Described gas outlet material is the stainless steel straight tube.
Principle of work:
1, sieve plate is kept flat, valve inside is scattered on the sieve plate, hand-held sieve plate roll and pitch number is lower, after most valve insides embed through hole, scrape one time along the sieve plate surface with scraper plate, the valve inside that does not embed through hole is scraped, as still have the vacant through hole of minority, directly replenish several valve insides and put into through hole.
2, guide plate is placed on the sieve plate, and register pin just in time inserts the pilot hole of sieve plate, guide plate and sieve plate are fitted like a glove, then turn over simultaneously turnback, valve inside all falls into guide plate from sieve plate, sieve plate is proposed vertically upward again, and valve inside all is inverted in the hole of guide plate.
3, in like manner, again lower bolster is placed on the guide plate, and the register pin on the guide plate just in time inserts the pilot hole of lower bolster, lower bolster and guide plate are fitted like a glove, then turn over simultaneously turnback, valve inside all falls into lower bolster from guide plate, and guide plate is proposed vertically upward, and valve inside all just is being put in the nib of lower bolster.
4, this moment lower bolster is put on the exhaustion plate of pressing machine, by the register pin location.
5, air pressure is transferred to desired value, press shift button under the cope match-plate pattern on the pressing machine switch board, cope match-plate pattern is to bottom offset, push up to the lower bolster sealing gasket, for preventing that cope match-plate pattern from damaging valve inside by pressure, be embedded in slide block and spring in the hole of cope match-plate pattern, by initial tension of spring valve inside is pressed in the lower nib, lower nib and plug washer closely cooperate, and reach sealing effectiveness.Gas after compressing in the source of the gas enters seal cavity between the upper and lower mould by air admission hole, and after continuing for some time, cope match-plate pattern moves on will be automatically, finishes test.
6, during gas testing, as observe gas outlet in tank without Bubble formation, illustrate that the valve inside opening pressure meets set standard, if any Bubble formation, the core spring pressing power that valve inside then is described is not enough, and perhaps valve inside is assembled hourglass cored spring, and the valve inside core bar will be backed down, core body separates with core print seat, produce the gap, gas is also discharged thereupon, at this moment, according to the level crossing display position, write down the position of leakage air valve inside, press the button that moves on the cope match-plate pattern, cope match-plate pattern is to top offset, take out leakage air valve inside, and classification is put.
Compared with prior art, the invention has the beneficial effects as follows:
1, whole test platform structure is simple and safe, and is easy to operate.
2, test efficiency is high.By the application to sieve plate, guide plate, lower bolster, pack into the efficient of lower nib of valve inside is greatly improved, and once can carry out simultaneously air-tight test to hundreds of valve insides; Process of the test has been saved pack into the process that is screwed in inflating valve core chamber of traditional valve inside, and top mould medi-spring pretightning force makes plug washer and the sealing of lower nib.
3, handling safety.Be provided with infra-red ray detection device at pressing machine, if during the patrix upper and lower displacement, operator's mistake stretches into pilot region with hand, and device will be sensed this risky operation automatically, and auto stop has been guaranteed personal safety.
Description of drawings
Fig. 1 is the schematic diagram of batch valve core air-tightness test of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the A section amplification view of Fig. 1.
Fig. 5 is that guide plate uses view among the present invention.
Fig. 6 is that sieve plate uses view among the present invention.
Fig. 7 is valve inside of the present invention is transferred to guide plate from sieve plate use view.
Fig. 8 is valve inside of the present invention is transferred to lower bolster from guide plate use view.
Wherein:
Pressing machine body 1, cope match-plate pattern 2, lower bolster 3, exhaustion plate 4, tank 5, guide plate 6, sieve plate 7, valve inside 8;
Slide block 2.1, spring 2.2; Gas outlet 4.1; Level crossing 5.1.
Core bar 8.1, core cap 8.2, core spring 8.3, core body 8.4, plug washer 8.5, core print seat 8.6.
Embodiment
Referring to Fig. 1 and Fig. 3, a kind of batch valve core air-tightness test that the present invention relates to, it mainly is comprised of pressing machine body 1, cope match-plate pattern 2, lower bolster 3, exhaustion plate 4, tank 5, guide plate 6 and sieve plate 7.
Described cope match-plate pattern 2 is fixed on workplace on the pressing machine body 1, described tank 5 is arranged on the lower workplace of pressing machine body 1, described tank 5 tops are provided with exhaustion plate 4, be evenly equipped with a plurality of gas outlets 4.1 on the described exhaustion plate 4, described gas outlet 4.1 is inserted under the liquid level in the tank 5, and described tank 5 bottoms are provided with level crossing 5.1, and described tank 4 at least sightingpiston simultaneously makes for transparent material, such as glass, transparent plastic sheet etc.
Referring to Fig. 4, be equipped with spring 2.2 and slide block 2.1 in the upper nib of described cope match-plate pattern 2 from top to bottom, offer the through hole that passes through for the valve inside core bar on the described slide block 2.1;
Referring to Fig. 4, the lower nib of described lower bolster 3 is through hole, and the internal diameter of described lower nib and the plug washer of valve inside closely cooperate;
The position of described upper nib, lower nib and gas outlet 4.1 is mutually corresponding;
Described gas outlet 4.1 materials are the stainless steel straight tube;
Referring to Fig. 5, be uniform-distribution with the tapered opening through hole on the described guide plate 6, described each through hole just can hold core bar and the core cap position of valve inside, and described guide plate 6 lead to the hole site are corresponding one by one with the lower die hole location of lower bolster 3.
Referring to Fig. 6, be uniform-distribution with tapered opening through hole of the same size on the described sieve plate 7, and each through hole just can hold next valve inside, the position of described sieve plate 7 through holes is corresponding one by one with the position of the through hole of guide plate 6.
During work:
1. such as Fig. 6, be uniform-distribution with tapered opening through hole of the same size on the sieve plate, and each through hole just can hold next valve inside, and sieve plate is kept flat, and valve inside is scattered on the sieve plate, hand-held sieve plate roll and pitch number is lower, after most valve insides embed through hole, scrape one time along the sieve plate surface with scraper plate, the valve inside that does not embed through hole is scraped, as still have the vacant through hole of minority, directly replenish several valve insides and put into through hole.
2. such as Fig. 6, be uniform-distribution with equally on the guide plate and sieve plate tapered opening through hole one to one, and each through hole just can hold core bar and the core cap position of valve inside, after valve inside occupies sieve plate, guide plate is placed on the sieve plate, and register pin just in time inserts the pilot hole of sieve plate, and guide plate and sieve plate are fitted like a glove, and then turns over simultaneously turnback, such as Fig. 7, valve inside all falls into guide plate from sieve plate, sieve plate is proposed vertically upward again, and valve inside all is inverted in the hole of guide plate.
3. in like manner, again lower bolster is placed on the guide plate, and the register pin on the guide plate just in time inserts the pilot hole of lower bolster, lower bolster and guide plate are fitted like a glove, then turn over simultaneously turnback, such as Fig. 8, valve inside all falls into lower bolster from guide plate, guide plate is proposed vertically upward, and valve inside all just is being put in the nib of lower bolster.
4. this moment lower bolster is put on the exhaustion plate of pressing machine, by the register pin location.
5. air pressure is transferred to desired value, press shift button under the cope match-plate pattern on the pressing machine switch board, cope match-plate pattern is to bottom offset, push up to the lower bolster sealing gasket, for preventing that cope match-plate pattern from damaging valve inside by pressure, be embedded in slide block and spring in the hole of cope match-plate pattern, by initial tension of spring valve inside is pressed in the lower nib, lower nib and plug washer closely cooperate, and reach sealing effectiveness.Gas after compressing in the source of the gas enters seal cavity between the upper and lower mould by air admission hole, and after continuing for some time, cope match-plate pattern moves on will be automatically, finishes test.
6. during gas testing, as observe gas outlet in tank without Bubble formation, illustrate that the valve inside opening pressure meets set standard, if any Bubble formation, the core spring pressing power that valve inside then is described is not enough, and perhaps valve inside is assembled hourglass cored spring, and the valve inside core bar will be backed down, core body separates with core print seat, produce the gap, gas is also discharged thereupon, at this moment, level crossing by bottom of gullet, write down the position of leakage air valve inside, press the button that moves on the cope match-plate pattern, cope match-plate pattern is to top offset, take out leakage air valve inside, and classification is put.