CN207080631U - A kind of precise metering valve - Google Patents
A kind of precise metering valve Download PDFInfo
- Publication number
- CN207080631U CN207080631U CN201720544114.1U CN201720544114U CN207080631U CN 207080631 U CN207080631 U CN 207080631U CN 201720544114 U CN201720544114 U CN 201720544114U CN 207080631 U CN207080631 U CN 207080631U
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- China
- Prior art keywords
- valve
- piston
- pilot pin
- feed opening
- valve rod
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Abstract
A kind of precise metering valve disclosed in the utility model, it is related to mechanical metering field, including feed opening, valve board assembly, cylinder assembly, horizontal drive apparatus, bracket, the cylinder assembly and the parallel longitudinal fixation of the feed opening, the cylinder assembly include cylinder body and piston；The valve board assembly includes valve plate and valve rod, and valve rod is L-shaped, and one end is fixed with valve plate, and the other end is connected through the bottom opening of the cylinder body and the piston cylindrical bore, top with the horizontal drive apparatus.The present apparatus drives the on and off of valve plate by the up and down motion of cylinder piston, and in the state of piston is opened, the side-to-side movement of valve plate is driven by driving horizontal device, and the size for being opened and closed feed opening and frequency is controlled to realize material delicate metering, simple in construction, precision is high, safe operation.
Description
Technical field
It the utility model is related to mechanical metering field, more particularly to a kind of precise metering valve.
Background technology
With the horizontal and industrial horizontal raising that becomes more meticulous of social consumption, currently for the metering of bulk material, except requiring
Have outside higher measuring accuracy, such as foreign matter is mixed into caused by pollution it is also proposed higher requirement, particularly by rubbing
Caused metallic pollution in the fine industry such as lithium battery, food, medicine not just the function quality to product, to product safety
An even more very great influence factor.The modes such as traditional spiral metering are due to the intrinsic problem in structure, although can be with
Using physical isolation measure, but can not tackle the problem at its root, this case in view of the above-mentioned problems, from prevent metallic pollution, improve
Measuring accuracy and efficiency etc. have started to develop out the precise metering valve.
Utility model content
The purpose of this utility model is to overcome above-mentioned problem of the prior art, there is provided a kind of precise metering valve.
Above-mentioned purpose is to be achieved through the following technical solutions：
A kind of precise metering valve, including feed opening 1 and valve board assembly 2, in addition to cylinder assembly 3, bracket 5 and horizontal drive
Device 8；
The cylinder assembly 3 and the 1 parallel longitudinal fixation of feed opening, the cylinder assembly 3 include cylinder body 31 and piston
32, the piston 32 is provided with cylindrical bore in cylinder, circle centre position, and the outer wall of piston 32 is provided with a ring shape salient angle；
The inwall of cylinder body 31 matches in cylinder with the outer wall of piston 32；A ring annular groove is set on the inwall of cylinder body 31,
Radially matched with the annular salient angle and form piston cavity, the upper and lower part of the piston cavity is equipped with gas disengaging and led to
Road（33,34）, the bottom of cylinder body 31 is provided with and the symmetrical circular open of the cylindrical bore of piston 32；
The valve board assembly 2 includes valve plate 21 and valve rod 22, and the valve rod 22 is L-shaped, including the first valve rod 221 and
Two valve rods 222, the valve plate 21 are fixed with first valve rod 221 and are vertically connected at institute parallel to the feed opening 1, one end
The bottom of the second valve rod 222 is stated, second valve rod 222 is in cylinder, axially across the bottom circular opening of the cylinder body 31
With the cylindrical bore of piston 32, the top of second valve rod 222 is connected with the horizontal drive apparatus 8；
The bracket 5 is perpendicular to the top exterior walls of piston 32, for fixing the horizontal drive apparatus 8.
Further, the feed opening 1 and the valve plate 21 are concentric circles, and the diameter of the valve plate 21 is more than the blanking
The diameter of mouth 1, described one side of valve plate 21 are provided with nock, and the nock size matches with the round edge of feed opening 1.
Further, the surface of valve plate 21 is provided with nonmetallic scuff-resistant coating.
Further, nonmetallic sealing ring 11 is additionally provided between the feed opening 1 and the valve plate 21, under described
The bottom of material mouth 1, it is bonded the collar extension of the feed opening 1.
Further, in addition to locating guide device 6, the locating guide device 6 include pilot pin pressing plate 61, the and of pilot pin 62
Pilot pin fixed plate 63, the pilot pin pressing plate 63 are fixed by fastener and the surface of bracket 5；The pilot pin fixed plate 63 is parallel
Fixed in the bracket 5, and with the outer wall of cylinder body 31；The pilot pin pressing plate 61, the bracket 5 and the pilot pin fixed plate 63
On be provided with symmetrical through hole, the pilot pin 62 passes perpendicularly through the through hole of pilot pin pressing plate 63, the through hole of the bracket 5 and described led
The through hole of pressing plate 61 is sold, the bottom of pilot pin 62 and the pilot pin are connected through a screw thread between fixing 62 through holes.
Further, wear-resisting guide pin bushing is additionally provided with the through hole of bracket 5 and the through-hole wall of pilot pin pressing plate 61, it is described
Pilot pin 62 passes through the wear-resisting guide pin bushing.
Further, the outer wall of second valve rod 222 is provided with the cylindrical bore inwall contact position of piston 32
Bearing 42.
Further, between the upper and lower of the piston cavity, the outer wall and the inwall of the cylinder body 31 of the piston 32
It is respectively arranged with sealing ring 7 and bearing holder (housing, cover) 41.
Further, the horizontal drive apparatus 8 is linear actuator 81, passes through linkage 9 and second valve rod
222 plan vertical connection.
Further, the horizontal drive apparatus 8 is precision rotating mechanism 82, is hung down with the top of second valve rod 222
It is direct-connected to connect.
Beneficial effect
A kind of precise metering valve that this programme provides, the up and down motion of piston is driven by the air inlet or outlet of cylinder,
And then the up and down motion for the valve board assembly fixed with piston is driven；By horizontal drive apparatus come drive valve plate component, reach
Swing and control the purpose of withdrawal rate.The design is simple in construction, contact of the material with valve plate when avoiding discharging and cause dirt
Dye, and precision is high, can accurately control the closure of valve plate, furthermore safe operation.
Brief description of the drawings
Fig. 1 is a kind of precise metering valve valve plate closure state figure described in the utility model；
Fig. 2 is a kind of precise metering valve valve plate open mode figure described in the utility model；
Fig. 3 is a kind of precise metering valve valve plate described in the utility model and feed opening structure figure；
Fig. 4 is a kind of precise metering valve band precision rotating mechanism status structure sectional view described in the utility model；
Fig. 5 overlooks for a kind of precise metering valve band linear actuator described in the utility model and linkage status architecture
Figure.
Embodiment
The utility model is described in further detail with reference to figure and embodiment.
As depicted in figs. 1 and 2, a kind of precise metering valve, including feed opening 1 and valve board assembly 2, the valve board assembly 2 wrap
Include valve plate 21 and valve rod 22, the valve rod 22 is L-shaped, including the first valve rod 221 and the second valve rod 222, the valve plate 21 with
First valve rod 221 is fixed and parallel to the feed opening 1, and one end is vertically connected at the bottom of second valve rod 222, institute
The second valve rod 222 is stated in cylinder.
The feed opening 1 is concentric circles with the plate of valve 21, and the diameter of the valve plate 21 is more than the straight of the feed opening 1
Footpath, described one side of valve plate 1 are provided with nock, and the nock size matches with the round edge of feed opening 1.Specifically, work as valve plate 21
During closure state, the center of circle of valve plate 21 and the center of circle coaxial-symmetrical of feed opening 1, the nock of valve plate 21 are located at the outside of feed opening 1,
So play a part of closing；When valve plate 21 opens discharge, the maximum angle that valve plate 21 is swung is nock and feed opening edge
Symmetrical position, this design limit the horizontal movement scope of valve rod 2 simultaneously so that valve board assembly 2 is without excessive driving force
Effect with regard to that can reach big discharge, it is small to be additionally, since the horizontal movement angle of valve board assembly 2, so adds what is accurately controlled
Precision.The surface of valve plate 21 is provided with nonmetallic scuff-resistant coating, specifically, is first pre-processed valve plate 21, then will be non-
Metal material (such as ceramics, plastics, glass) is electroplated, and can so prevent raw material and metal during valve plate mediate contact is dirty
Dye.
As shown in figure 3, nonmetallic sealing ring 11 is additionally provided between the feed opening 1 and the valve plate 21, positioned at described
The bottom of feed opening 1, nonmetallic sealing ring 11 are bonded the collar extension of the feed opening.It can so prevent due to valve plate 21 and blanking
The friction of mouth 1 produces metal dust and then pollutes powder material.
With reference to shown in Fig. 4 and Fig. 5, the present embodiment device, the cylinder assembly 3 includes cylinder body 31 and piston 32, the work
Plug 32 is provided with cylindrical bore in cylinder, circle centre position, and the outer wall of piston 32 is provided with a ring shape salient angle；The cylinder body 31
Inwall matches in cylinder with the outer wall of piston 32；A ring annular groove is set on the inwall of cylinder body 31, with the annular
Salient angle radially matches and forms piston cavity, and the upper and lower part of the piston cavity is equipped with gas access way（33,34）.
Specifically, a ring annular groove is set on the inwall of cylinder body 31, the length phase of the depth and annular salient angle on the outer wall of piston 32 of groove
Together, the height of groove is more than the thickness of salient angle, and material is thus formed a piston cavity that can be movable.In the upper of piston cavity
Gas access way is set on the cylinder body of portion and bottom close position（33,34）, when carrying out discharge, the disengaging on piston cavity top
Gas passage 33 is supplied gas by external pressure into piston cavity, produces the pressure under making convex annular angularly, same to time, piston cavity
There will be discharged with the gas below piston cavity annular salient angle by outside pumping for the outlet passageway 34 that enters of bottom；The row of closing
During material, the outlet passageway 34 that enters of piston cavity bottom is supplied gas by external pressure into piston cavity, and generation makes convex annular angular
On pressure, the same to time, piston cavity top enter outlet passageway 333 by outside pumping there will be with piston cavity annular
Gas discharge above salient angle.In the upper and lower of the piston cavity, the outer wall of the piston 32 and the inwall of cylinder body 31 it
Between be respectively arranged with sealing ring 7 and bearing holder (housing, cover) 41.Specifically, the purpose of sealing ring 7 is to keep the seal of piston cavity,
Bearing holder (housing, cover) 41 is that piston 32 can freely do raising and lowering motion for convenience.
The bottom of cylinder body 31 is provided with and the symmetrical circular open of the cylindrical bore of piston 32；Valve board assembly 2
Second valve rod 222 is in cylinder, through the bottom opening and the cylindrical bore of the piston 32 of the cylinder body 31, top and level
Drive device connects.Specifically, this design is in order that piston 32 is used as an entirety with valve board assembly 2, when to piston 32
Acting, when making it move up and down, it is possible to reach the up and down motion at feed opening 1 of valve plate 21 on valve board assembly, that is, beat
Open or close.
The present embodiment device, in addition to locating guide device 6 and bracket 5, bracket 5 are outer perpendicular to the top of piston 32
Wall, for fixing the horizontal drive apparatus 8.Also include locating guide device 6, the locating guide device 6 includes pilot pin pressure
Plate 61, pilot pin 62 and pilot pin fixed plate 63, the pilot pin pressing plate 63 are fixed by fastener and the surface of bracket 5；It is described to lead
Pin fixed plate 63 is fixed parallel to the bracket 5, and with the outer wall of cylinder body 31；The pilot pin pressing plate 61, the bracket 5 and institute
State and symmetrical through hole is provided with pilot pin fixed plate 63, the pilot pin 62 passes perpendicularly through the through hole of pilot pin pressing plate 63, described dragged
The through hole of frame 5 and the through hole of pilot pin pressing plate 61, the bottom of pilot pin 62 and the pilot pin are connected between fixing 62 through holes by screw thread
Connect.Wear-resisting guide pin bushing is additionally provided with the through hole of bracket 5 and the through-hole wall of pilot pin pressing plate 61, the pilot pin 62 passes through described wear-resisting
Guide pin bushing.
Specifically, due to the owned certain weight of horizontal drive apparatus 8, when directly acting on the second valve rod 222, nothing
Method is fixed, and to be filled so there is provided this positioning and guiding formed using pilot pin pressing plate 61, bracket 5, pilot pin fixed plate 63 and pilot pin
Put 6.Because in work or closed mode, the second valve rod 222 can do motion downward or upward together with horizontal drive apparatus 8,
Using this design, give bracket activity space certain on pilot pin 62, wear-resisting guide pin bushing is set, play support level driving
Stablize anti-skidding effect during device 8.
The cylindrical bore contact position of the outer wall of second valve rod 222 and the piston 32 is provided with bearing 42, so
Set, can make it that horizontally rotating for the second valve rod 222 is independent relative to piston 32, top and water due to the second valve rod 222
Flat drive device 8 connects, and in the state of the opening of horizontal drive apparatus 8, the left-right rotation of horizontal drive apparatus 8 can drive second
The left-right rotation of valve rod 222, because the second valve rod 222 and the first valve rod 221 and valve plate 21 are an entirety, the second valve
The left-right rotation of bar 222 drives the left-right rotation of valve plate 21, and then valve plate 21 is relative to beating in the horizontal direction of feed opening 1
Open and close.
In the present embodiment, the horizontal drive apparatus 8 can be linear actuator 81, pass through linkage 9 and described the
The top of two valve rods is fixed on the surface of bracket 5 by valve plate pressing plate 91 and the vertical connection of trip bolt 92, linear actuator 81.
It can also be precision rotating mechanism 82, be supported by bracket 5, the top of the second valve rod described in the favourable turn position of precision rotating mechanism 82
Portion's vertical connection.
Embodiment, Weighing is carried out to 5kg powder.
Device external program starts, and extraneous gas pushes air pressure by entering outlet passageway 33 to piston cavity top, produces
Pressure under making convex annular angularly, the same to time, piston cavity bottom enter outlet passageway 34 by outside pumping there will be with work
Fill in cavity annular salient angle below gas discharge, piston 32 decline 5mm, drive valve board assembly under move, valve plate 21 relative to
Feed opening 1 is opened downwards, meanwhile, precision rotating mechanism 82 starts, and drives valve board assembly 2 to do leftward or rightward swing at a slow speed, fixed
Position is to corresponding to the nock of valve plate 21 and the round edge of feed opening.Feed opening proceeds by big discharge, when discharge is to 4.8kg, essence
Drive valve plate component 2 swings close slew gear 82 again, because valve plate 21 is swung in the lower section of feed opening 1
Motion so that the withdrawal rate of feed opening 1 tails off.During preset value nearer with the withdrawal rate of feed opening 1, precision rotating mechanism 82 drives valve
The speed that board component 2 does side-to-side movement reaches peak value, until when withdrawal rate is 5kg, precision rotating mechanism 82 is stopped, valve plate
Component 2 returns to initial position（I.e. valve plate 21 is changed into concentric circles position with feed opening 1）.Now, extraneous gas is led to by entering outlet
Road 34 pushes air pressure to piston cavity bottom, and generation makes convex annular angle upward pressure, the same to time, the disengaging on piston cavity top
For gas passage 33 by outside pumping there will be being discharged with the gas above piston cavity annular salient angle, piston 32 rises 5mm, band
Dynamic valve board assembly is moved upwards, and valve plate 21 is closed upwards relative to feed opening 1.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
Be confined to this, any people for being familiar with the technology in the technical scope disclosed by the utility model, it is contemplated that change or replace
Change and all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be protected with claim
The scope of shield is defined.
Claims (10)
1. a kind of precise metering valve, including feed opening（1）And valve board assembly（2）, it is characterised in that also including cylinder assembly（3）、
Bracket（5）And horizontal drive apparatus（8）；
The cylinder assembly（3）With the feed opening（1）Parallel longitudinal fixation, the cylinder assembly（3）Including cylinder body（31）With
Piston（32）, the piston（32）In cylinder, circle centre position is provided with cylindrical bore, the piston（32）Outer wall is provided with a circle
Annular salient angle；The cylinder body（31）Inwall is in cylinder, with the piston（32）Outer wall matches；The cylinder body（31）Set on inwall
A ring annular groove is put, is radially matched with the annular salient angle and forms piston cavity, the upper and lower part of the piston cavity
It is equipped with gas access way（33,34）, cylinder body (31) bottom is provided with symmetrical with the piston (32) cylindrical bore
Circular open；
The valve board assembly (2) includes valve plate (21) and valve rod (22), and the valve rod (22) is L-shaped, including the first valve rod
(221) and the second valve rod (222), the valve plate (21) are fixed with first valve rod (221) and parallel to the feed opening
(1), one end is vertically connected at the bottom of second valve rod (222), and second valve rod (222) is in cylinder, axially across
The bottom circular opening and the piston (32) cylindrical bore of the cylinder body (31), the top of second valve rod (222) with
The horizontal drive apparatus（8）Connection；
The bracket（5）Perpendicular to the piston（32）Top exterior walls, for fixing the horizontal drive apparatus（8）.
A kind of 2. precise metering valve according to claim 1, it is characterised in that the feed opening（1）With the valve plate
（21）For concentric circles, the valve plate（21）Diameter be more than the feed opening（1）Diameter, the valve plate（21）While it is provided with
Nock, the nock size and the feed opening（1）Round edge matches.
A kind of 3. precise metering valve according to claim 2, it is characterised in that the valve plate（21）Surface is provided with non-gold
Belong to scuff-resistant coating.
A kind of 4. precise metering valve according to claim 3, it is characterised in that the feed opening（1）With the valve plate
（21）Between be additionally provided with nonmetallic sealing ring（11）, positioned at the feed opening（1）Bottom, be bonded the feed opening（1）'s
Collar extension.
5. a kind of precise metering valve according to claim 1, it is characterised in that also including locating guide device（6）, it is described
Locating guide device（6）Including pilot pin pressing plate（61）, pilot pin（62）With pilot pin fixed plate（63）, the pilot pin pressing plate（63）Pass through
Fastener and the bracket（5）Surface is fixed；The pilot pin fixed plate（63）Parallel to the bracket（5）, and with the cylinder body
（31）Outer wall is fixed；The pilot pin pressing plate（61）, the bracket（5）With the pilot pin fixed plate（63）On be provided with it is symmetrical logical
Hole, the pilot pin（62）Pass perpendicularly through the pilot pin pressing plate（63）Through hole, the bracket（5）Through hole and the pilot pin pressing plate（61）
Through hole, the pilot pin（62）Bottom is fixed with the pilot pin（62）It is connected through a screw thread between through hole.
A kind of 6. precise metering valve according to claim 5, it is characterised in that the bracket（5）Through hole and the pilot pin
Pressing plate（61）Wear-resisting guide pin bushing, the pilot pin are additionally provided with through-hole wall（62）Through the wear-resisting guide pin bushing.
A kind of 7. precise metering valve described in claim 1, it is characterised in that second valve rod（222）Outer wall with it is described
Piston（32）Cylindrical bore inwall contact position is provided with bearing（42）；Second valve rod（222）Outer wall and the cylinder body
（31）Bottom contact position be provided with sealing ring（7）, the sealing ring（7）It is arranged at the cylinder body（31）Bottom circular opening
Place.
8. a kind of precise metering valve according to claim 1, it is characterised in that in the upper and lower of the piston cavity, institute
State piston（32）Outer wall and the cylinder body（31）Sealing ring is respectively arranged between inwall（7）And bearing holder (housing, cover)（41）.
A kind of 9. precise metering valve according to claim 1, it is characterised in that the horizontal drive apparatus（8）For straight line
Actuator（81）, pass through linkage（9）With second valve rod（222）Plan vertical connection.
A kind of 10. precise metering valve according to claim 1, it is characterised in that the horizontal drive apparatus（8）For precision
Slew gear（82）, with second valve rod（222）Plan vertical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544114.1U CN207080631U (en) | 2017-05-17 | 2017-05-17 | A kind of precise metering valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544114.1U CN207080631U (en) | 2017-05-17 | 2017-05-17 | A kind of precise metering valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080631U true CN207080631U (en) | 2018-03-09 |
Family
ID=61435516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720544114.1U Expired - Fee Related CN207080631U (en) | 2017-05-17 | 2017-05-17 | A kind of precise metering valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013697A (en) * | 2017-05-17 | 2017-08-04 | 无锡爱信机械科技有限公司 | A kind of precise metering valve |
-
2017
- 2017-05-17 CN CN201720544114.1U patent/CN207080631U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013697A (en) * | 2017-05-17 | 2017-08-04 | 无锡爱信机械科技有限公司 | A kind of precise metering valve |
| CN107013697B (en) * | 2017-05-17 | 2022-12-09 | 无锡爱信机械科技有限公司 | Precise metering valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20210517 |