CN206334774U - A kind of injection valve - Google Patents
A kind of injection valve Download PDFInfo
- Publication number
- CN206334774U CN206334774U CN201621436324.0U CN201621436324U CN206334774U CN 206334774 U CN206334774 U CN 206334774U CN 201621436324 U CN201621436324 U CN 201621436324U CN 206334774 U CN206334774 U CN 206334774U
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- upper cavity
- seal
- striker
- lower chamber
- nozzle
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Abstract
The utility model discloses a kind of injection valve, including valve body, striker and valve element, the valve body has the upper cavity and lower chamber being connected, the seal spool is arranged in upper cavity and can be axially moved along upper cavity, the valve element is connected provided with an elastic component, air inlet is provided with positioned at upper cavity, air inlet passes in and out air cock by a high frequency and connects source of the gas, the junction of the upper cavity and lower chamber is provided with first seal, the upper end of the striker is fixed on valve element, hermetically activity is through first seal and extends to lower chamber for the striker, the first seal opens upper cavity and lower chamber seal isolation, the gas and elastic component collective effect for passing in and out air cock entrance by high frequency make valve element axially be moved repeatedly along upper cavity in upper cavity, so as to drive the striker to move back and forth, the lower chamber is provided with charging aperture, the lower end of the lower chamber is provided with nozzle, in the reciprocating stroke of the striker, the position of nozzle is withstood in the lower surface sealing for covering the striker.
Description
Technical field
The utility model belongs to injection apparatus field, more particularly to a kind of injection valve.
Background technology
Injection valve is a kind of valve body that can come out fluid injection, both can be used for spraying liquid, can be used for injection
Gas, is widely used among dispensing, point paint, point grease, combustion chamber spray combustion gas etc..
Being painted from moving point, in point grease, dispensing industry, injection valve is a more crucial part, injection valve injection
Quality largely have impact on from moving point paint, point grease, dispensing effect in addition determine can realize from moving point paint,
Point grease, dispensing.When to be currently used for most of paint, point grease, injection valve for dispensing glue be main points paint, point grease, dispensing,
Pin is mentioned, opens the nozzle of injection valve, paint, glue, grease are ejected by the nozzle pressurizeed from injection valve.This
Injection valve is planted to have the disadvantage that：Jet velocity is slower, and injection is not uniform enough, and injection minimum is bigger than normal, it is impossible to realize thinner more
Accurate place paint, and emitted dose can not accurate adjustment.
The content of the invention
The utility model purpose is that a kind of jet velocity is provided to solve the above problems soon, and evenly, point is painted for injection
More it is thin more precisely, and emitted dose can accurate adjustment injection valve.
Therefore, the utility model discloses a kind of injection valve, including valve body, striker and valve element, the valve body, which has, to be connected
Logical upper cavity and lower chamber, the seal spool is arranged in upper cavity and can be axially moved along upper cavity, connects the valve element
Provided with an elastic component, air inlet is provided with positioned at upper cavity, the air intake duct for connecting the air inlet enters via high frequency turnover air cock
Row break-make switches, and the junction of the upper cavity and lower chamber is provided with first seal, and the upper end of the striker is fixed on valve element
On, the striker is through first seal and extends to lower chamber, the striker and first seal activity cooperation and airtight matches somebody with somebody
Close, the first seal opens upper cavity and lower chamber seal isolation, through being entered by the air inlet after high frequency turnover air cock conducting
The gas push entered the valve element is axially toward first direction along upper cavity in upper cavity and moved and high frequency turnover air cock
The valve element is driven to be axially toward the second direction away from first direction along upper cavity in upper cavity by the elastic component after shut-off
Motion, so as to drive the striker to move back and forth, the lower chamber is provided with charging aperture, and the lower end of the lower chamber is provided with nozzle,
In the reciprocating stroke of the striker, the position of nozzle is withstood in the lower surface sealing for covering the striker.
Further, also including second seal, the second seal is arranged on nozzle, and the second seal is set
There is through hole, the nozzle is connected by the through hole with lower chamber, the lower surface sealing of the striker withstands the through hole to seal
The nozzle.
Further, the second seal is made up of Teflon, PEEK or plastic-steel material.
Further, the upper end of the through hole is in conical inclined surface or cambered surface, the cone of the conical inclined surface or cambered surface
Connected with nozzle, the lower surface of the striker is provided with the conical plush copper matched with the conical inclined surface or cambered surface.
Further, the first seal is the groove that end face is provided around on hollow column structure, its end face.
Further, adjustable limiting adjusting rod, adjustable limiting adjusting rod and epicoele are equipped with described upper cavity top
It is connected through a screw thread at the top of body, the lower end of adjustable limiting adjusting rod is located in upper cavity, and is directed at the upper surface of the valve element, described
Adjustable limiting adjusting rod is provided with the steam vent connected with upper cavity.
Further, the high frequency turnover air cock is high-frequency electromagnetic valve or bullet valve, the high-frequency electromagnetic valve or bullet
The air inlet termination high-pressure air source of valve.
Further, the elastic component is spring.
Further, the bore of the nozzle is 0.065mm-3.5mm.
Further, the valve body is cylindrical or square.
Advantageous Effects of the present utility model：
The utility model promotes valve element high frequency to move up and down by the gases at high pressure of high frequency break-make, so as to drive striker high frequency
Paint is hit, it is ejected from nozzle, soon, evenly, point paint is thinner more accurate, and emitted dose can be accurate for injection for jet velocity
Regulation, and long service life, good stability.
Brief description of the drawings
Fig. 1 is the section of structure of the utility model embodiment；
Fig. 2 founds figure for the group of the utility model embodiment；
Fig. 3 is the striker reset state schematic diagram of the utility model embodiment；
Fig. 4 is lifted up view for the striker of the utility model embodiment；
Fig. 5 is the first seal structural representation of the utility model embodiment；
Fig. 6 is another section of structure of the utility model embodiment；
Fig. 7 is another group of vertical figure of the utility model embodiment.
Embodiment
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
As Figure 1-5, a kind of injection valve, including valve body 1, striker 6 and valve element 11, the valve body 1 have what is be connected
Upper cavity 13 and lower chamber 12, the connection cavity of nozzle 4 of lower chamber 12, the valve element 11 are sealingly disposed in upper cavity 13 and can edges
Upper cavity 13 is axially moved, and an elastic component 9 is provided with the upper cavity 13 of the top of valve element 11, the two ends of elastic component 9 are supported respectively
Firmly connect in the top of valve element 11 and upper cavity 13, this specific embodiment, elastic component 9 is preferably compression spring, certainly, other
In embodiment or compression shell fragment etc..
Upper cavity 13 positioned at the lower section of valve element 11 is provided with air inlet 10, and the air inlet 10 passes in and out air cock by a high frequency
In 2 connection high-pressure air sources, this specific embodiment, high frequency turnover air cock 2 is bullet valve, the air inlet termination high pressure gas of bullet valve 2
Source, in other embodiments, high frequency turnover air cock 2 can be high-frequency electromagnetic valve（As shown in Figures 6 and 7）, high-frequency electromagnetic valve 2
Air inlet terminates high-pressure air source.
The junction of the upper cavity 13 and lower chamber 12 is provided with first seal 8, and the upper end of the striker 6 is fixed on valve
On core 11, the striker 6 is through the first sealing 8 and extends to lower chamber 12, and the striker 6 is matched somebody with somebody with the activity of first seal 8
Close and air-tight fit, the first seal 8 opens upper cavity 13 and the seal isolation of lower chamber 12, and the air-tight movable of striker 6 is worn
Cross first seal 8 and extend in lower chamber 12, this specific embodiment, first seal 8 is hollow column structure, its end
The groove 81 of end face is provided around on face, for cushioning effect, using this structure so that the sealing area of first seal 8 is big, close
Seal effect good, be hardly damaged, long lifespan.
Bullet valve 2 is passed through after turning on enters the gas push valve element 11 of upper cavity 13 in upper cavity 13 by the air inlet 10
Moved upwards along along the axial direction of upper cavity 13（Towards first direction motion）And driven after the shut-off of bullet valve 2 by the compression spring 9
The valve element 11 is moved downward in upper cavity 13 along along the axial direction of upper cavity 13（Face away from the second direction motion of first direction）,
So as to drive the striker 6 to move back and forth.
The lower chamber 12 is provided with charging aperture 3, and the connection of charging aperture 3 material to be sprayed such as is painted, the lower chamber 12
Lower end is provided with nozzle 4, when valve element 11, which is moved downwardly to lowermost position, to be put, and nozzle 4 is withstood in the lower surface sealing of the striker 6, is made
Paint can not be ejected.
Further, in order that sealing effectiveness and jeting effect more preferably, are hardly damaged striker 6 and nozzle 4, it is additionally provided with the
Two seals 7, the second seal 7 is arranged on nozzle 4, the jet of nozzle 4 is sealed off with lower chamber 12, second
Seal 7 is provided with through hole 71, and the jet of the nozzle 4 is connected by the through hole 71 with lower chamber 12, when valve element 11 is transported downwards
Move to lowermost position put when, the striker 6 lower surface sealing withstands the through hole 71, prevent paint from ejecting.This is specific real
Apply in example, second seal 7 can be by Teflon（Also match steel, King are）, the nonmetallic materials such as PEEK or plastic-steel be made, but
Not limited to this.
Further, the upper end of the through hole 71 is in conical inclined surface, and cone and the nozzle 4 of the conical inclined surface connect
Logical, the lower surface of the striker 6 is provided with the conical plush copper 61 matched with the conical inclined surface, so makes the lower end of striker 6
Face sealing preferably seals up through hole 71, certainly, in other embodiments, and the upper end of the through hole 71 is in cambered surface.
Further, in order to adjust paint spray volume, and ease of assembly compression spring 9, valve element 11 and striker 6, upper cavity
13 top is set to sealing in opening, opening and is bolted with adjustable limiting adjusting rod 5, and the lower end of adjustable limiting adjusting rod 5 is located at
In upper cavity 13, and alignment valve element 11 upper surface, valve element 11 upwards move when can be withstood it is spacing, by rotating adjustable limit
Position adjusting rod 5 can change height of its lower end in upper cavity 13, so as to change the height that valve element 11 and striker 6 are moved upwards
Degree, so as to change paint spray volume.Adjustable limiting adjusting rod 5 is provided with installation cavity, and the upper end of compression spring 9 is arranged on installation cavity
It is interior.
Further, the adjustable limiting adjusting rod 5 is provided with the row connected with the upper cavity 13 positioned at the top of valve element 11
Stomata 51, the upper cavity 13 positioned at the top of valve element 11 is communicated by steam vent 51 with ambient pressure so that valve element about 11 repeatedly
Air pressure is more stable during motion.
In this specific embodiment, the bore of the nozzle 4 is preferably 0.065mm-3.5mm.The valve body 1 is cylinder,
Certainly, in other embodiments, or square（As shown in Figure 6 and Figure 7）Or other shapes.
The course of work：Quick response high-frequency electromagnetic valve 2 or bullet valve 2, from air inlet 10, quickly interruption enters upper to high pressure gas
Cavity 13, paint enters lower chamber 12 up to the cavity of nozzle 4, in the case where gases at high pressure and compression spring 9 are acted on, valve from charging aperture 3
Core 11 is quickly moved repeatedly up and down in upper cavity 13, and paint is hit so as to drive striker 6 quickly to move repeatedly up and down, made
It is ejected at a high speed from the jet of nozzle 4；After high-frequency electromagnetic valve 2 or bullet valve 2 are closed, valve element 11 and striker 6 are in pressure
The elastic force effect of contracting spring 9 is lower to be resetted downwards, the lower surface 61 of striker 6 is withstood the through hole 71 of second seal 7, so that by nozzle
4 sealings, prevent paint from ejecting.The spray volume of paint can be adjusted by rotating adjustable limiting adjusting rod 5.
In the present embodiment, the minimum ON time of injection valve can arrive 0.002S, and the amount ejected is second seal 7
The amount of through hole 71 and its following nozzle intermediate flow channel.
Certainly, in other embodiments, it is right in the upper cavity 13 that compression spring 9 can also be arranged on to the lower section of valve element 11
Answer, air inlet is connected with the upper cavity 13 of the top of valve element 11, or elastic component 9 uses extension spring, its installation site and air inlet
The position of mouth 10 need to only do simple adjustment, and this is that those skilled in the art can realize easily, is no longer described in detail.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details
On the utility model can be made a variety of changes, be protection domain of the present utility model.
Claims (10)
1. a kind of injection valve, including valve body, striker and valve element, it is characterised in that：The valve body have the upper cavity that is connected and
Lower chamber, the seal spool is arranged in upper cavity and can be axially moved along upper cavity, connects the valve element provided with an elastic component,
Air inlet is provided with positioned at upper cavity, the air intake duct for connecting the air inlet carries out break-make switching, institute via high frequency turnover air cock
The junction for stating upper cavity and lower chamber is provided with first seal, and the upper end of the striker is fixed on valve element, and the striker is worn
Cross first seal and extend to lower chamber, the striker and first seal activity cooperation and air-tight fit, first sealing
Part opens upper cavity and lower chamber seal isolation, and passing through the gas push entered by the air inlet after high frequency turnover air cock conducting should
Valve element in upper cavity along upper cavity be axially toward first direction move and high frequency turnover air cock shut-off after by the elasticity
The second direction that part drives the valve element to be axially toward in upper cavity along upper cavity away from first direction is moved, so as to drive this
Striker is moved back and forth, and the lower chamber is provided with charging aperture, and the lower end of the lower chamber is provided with nozzle, reciprocating in the striker
In stroke, the position of nozzle is withstood in the lower surface sealing for covering the striker.
2. injection valve according to claim 1, it is characterised in that：Also include second seal, the second seal is set
Put on nozzle, the second seal is provided with through hole, and the nozzle is connected by the through hole with lower chamber, under the striker
End face seal withstands the through hole to seal the nozzle.
3. injection valve according to claim 2, it is characterised in that：The second seal is by Teflon, PEEK or plastic-steel
Material is made.
4. the injection valve according to Claims 2 or 3, it is characterised in that：The upper end of the through hole is in conical inclined surface or arc
Face, the cone of the conical inclined surface or cambered surface is connected with nozzle, and the lower surface of the striker is provided with and the conical inclined surface
Or the conical plush copper of cambered surface matching.
5. injection valve according to claim 1, it is characterised in that：The first seal is hollow column structure, its
The groove of end face is provided around on end face.
6. injection valve according to claim 1, it is characterised in that：Adjustable limiting tune is equipped with the top of described upper cavity
Pole, adjustable limiting adjusting rod at the top of upper cavity with being connected through a screw thread, and the lower end of adjustable limiting adjusting rod is located in upper cavity,
And the upper surface of the valve element is directed at, the adjustable limiting adjusting rod is provided with the steam vent connected with upper cavity.
7. injection valve according to claim 1, it is characterised in that：The high frequency turnover air cock is high-frequency electromagnetic valve or son
Play valve, the air inlet termination high-pressure air source of high-frequency electromagnetic valve or the bullet valve.
8. injection valve according to claim 1, it is characterised in that：The elastic component is spring.
9. injection valve according to claim 1, it is characterised in that：The bore of the nozzle is 0.065mm-3.5mm.
10. injection valve according to claim 1, it is characterised in that：The valve body is cylindrical or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621436324.0U CN206334774U (en) | 2016-12-26 | 2016-12-26 | A kind of injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621436324.0U CN206334774U (en) | 2016-12-26 | 2016-12-26 | A kind of injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206334774U true CN206334774U (en) | 2017-07-18 |
Family
ID=59301978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621436324.0U Active CN206334774U (en) | 2016-12-26 | 2016-12-26 | A kind of injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206334774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906492A (en) * | 2018-09-03 | 2018-11-30 | 威准（厦门）自动化科技有限公司 | A kind of hot melt adhesive injection valve |
| CN110252591A (en) * | 2018-06-12 | 2019-09-20 | 玛珂系统分析和开发有限公司 | Injection valve |
-
2016
- 2016-12-26 CN CN201621436324.0U patent/CN206334774U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252591A (en) * | 2018-06-12 | 2019-09-20 | 玛珂系统分析和开发有限公司 | Injection valve |
| CN108906492A (en) * | 2018-09-03 | 2018-11-30 | 威准（厦门）自动化科技有限公司 | A kind of hot melt adhesive injection valve |
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| GR01 | Patent grant |