CN1796844A - Diaphragm valve - Google Patents
Diaphragm valve Download PDFInfo
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- CN1796844A CN1796844A CN 200510113353 CN200510113353A CN1796844A CN 1796844 A CN1796844 A CN 1796844A CN 200510113353 CN200510113353 CN 200510113353 CN 200510113353 A CN200510113353 A CN 200510113353A CN 1796844 A CN1796844 A CN 1796844A
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- valve rod
- air
- internal cavities
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Abstract
A valve is provided for use in a fluid dispensing system. The valve includes a valve body having an interior cavity and a valve stem mounted for axial movement between open and closed positions within the valve body. The valve stem includes an actuation air passageway having an air inlet and an air outlet, with the air inlet being adapted to be coupled to a source of pressurized actuation air. The air outlet communicates with said interior cavity. The valve also includes a piston element carried by the valve stem and positioned within the interior cavity. The valve further includes a liquid inlet, a liquid outlet, and a valve seat positioned between the liquid inlet and the liquid outlet, whereby the valve stem is movable from the closed position to the open position relative to the valve seat when pressurized actuation air is introduced into the interior cavity through the actuation air passageway and acts against the piston element.
Description
The application requires in the U.S. Provisional Patent Application No.60/613 of submission on September 28th, 2004, the preference of 692 " miniature diaphragm valves ", and its full content is incorporated herein by reference.
Technical field
The present invention relates to valve, and more concrete, relate to membrane valve.
Background technique
Membrane valve comprises pneumatic diaphragm valve, is being known in the art.General, such valve utilizes air pressure antagonistic spring active force with jigger lifting piston, thereby valve is converted to open position from closed position, provides and delivers from this valve to allow fluid.Generally the accessory of the side by being connected to valve below piston provides described air pressure.Be used for fluid dispensing industry though such valve is favourable, the air feeder that is installed in a side has increased the weight of valve and the overall dimension of valve.This is because the outer diameter of valve must be greater than diameter required under other situation, increasing in order to holding the required valve body wall thickness of port with internal thread, this port is in order to match with traditional externally threaded fluid coupling that has as a part of air supply system.
Size and weight are to be especially disadvantageous in the application of important design consideration therein for these.For example, for pivoting and for the valve of workpiece dispensing fluids on being installed in mechanism hand, when the compound movement of considering mechanism hand and valve together and other device touch requiring of this workpiece, only can provide limited space for this valve around the XYZ axle.And as being understood by ordinary skill in the art, the increase of the quality of valve can reduce the ability that mechanism hand rotates and moves to another position from a position around a plurality of axis in the required time in production line environment.The valve quality that increases has also improved the operation load on the mechanism hand, can reduce the working life of automatic thus.
Summary of the invention
Considering provides a kind of valve that is used for the fluid dispensing system as mentioned above.This valve has the body and the valve rod of band internal cavities, and valve rod is installed in the valve body and axial motion between open position and closed position.This valve rod has the actuation air passage, and this passage has air intlet and air outlet slit, and this air intlet is suitable for being connected on the pressure actuated air source.This air outlet slit is connected with internal cavities.This valve also has by valve rod carrying and is arranged on piston element in the internal cavities.This valve also have fluid inlet, fluid output and be arranged on fluid inlet and fluid output between valve seat, when pressure actuated air was introduced in the internal cavities by the actuation air passage and acts on the piston element, valve rod can move towards open position from closed position with respect to valve seat thus.
Utilization be formed on passage in the piston rod provide pressure fluid for example pressed gas promptly change the position of valve to be used for the purpose of operating valve, it is littler and lighter than the conventional valve with air accessory of installing in the side to make this valve.This is should be greater than the outer diameter of valve of the present invention because have the outer diameter of the conventional valve of the air accessory of installing in the side, so that increase in order to holding the required valve body wall thickness of port with internal thread, this port is in order to match with traditional externally threaded fluid coupling that has as a part of air supply system.
When considering the pipe joint that matches with traditional valve and valve of the present invention, also realized the reduction of weight in addition.For example, for the conventional valve of using the air feeder of installing in the side, this bend pipe accessory generally 90 bend pipes of spending is screwed into the port on the side that is positioned at valve, because can hold the primary air supply pipeline of the center line setting that is basically parallel to valve with internal thread.With can be in order to compare with the traditional fluid coupling that matches of passage in the piston rod that is formed on valve of the present invention, this bend pipe is heavier and volume is bigger.Compare with traditional valve, valve of the present invention brings multiple advantage in the reduction aspect weight and the size.For example, when valve of the present invention was installed on the mechanism hand, the reduction of valve weight had improved mechanism hand in the time required in production line environment around a plurality of axis rotations and move to the ability of another position from a position.And the reduction of valve weight can improve the working life of automatic.
And in the time of on being installed in mechanism hand, valve reducing aspect size improved the ability that other device touches workpiece, and described workpiece receives from the fluid of valve dispensing of the present invention.
Brief Description Of Drawings
With reference to following description, appended claim and accompanying drawing, these that can better understand the present invention and further feature, aspect and advantage, wherein:
Fig. 1 is the stereogram of valve according to an embodiment of the invention;
Fig. 2 A is the sectional view of valve shown in Figure 1, and wherein this valve is illustrated as in the closed position;
Fig. 2 B is the sectional view that is similar to Fig. 2 A, is shown in an open position but wherein this valve is illustrated as; And
Fig. 3 is the schematic representation that is combined with the fluid dispensing system of the valve shown in Fig. 1,2A and the 2B.
Embodiment
With reference now to accompanying drawing,, Fig. 1 is the stereogram of signal valve 10 according to an embodiment of the invention.Valve 10 has the body with 12 expressions, and this body 12 has 18 sentences first main body portion 14 and second main body portion 16 that engage thread is bonded with each other.Body 12 has the internal cavities 20 that is formed in first main body portion 14.Valve 10 also has axially extended valve rod 24, and this valve rod is installed, and the opening and closing position corresponding to valve 10 between its opening and closing position axial motion takes place in valve body 12 to be used for.Piston element 26 is carried and is arranged in the internal cavities 20 by valve rod 24.In the embodiment who is illustrated, piston element 26 is a disk.In one embodiment, valve body 12, valve rod 24 and piston element 26 are made by 303 type stainless steels.But, also can use other suitable material.For example, the optional material of valve body 12 comprises 316 type stainless steels and super high molecular weight (UHMW) plastics.About valve rod 24 and piston element 26, optional material comprises 316 type stainless steel and aluminium.
Valve rod 24 has and is configured to receive for example close end 28 of pipe joint 30 of conventional fluid pipe joint.Disk 26 have along away from first axial orientation surface 32 of the direction orientation of the close end 28 of valve rod 24 and have along towards the direction orientation of the close end 28 of valve rod 24 second axially towards surface 34.Valve 10 also has the O shape ring 36 in the groove 38 that is arranged in the periphery 40 that is formed at disk 26.This O shape ring 36 by elastomeric material for example rubber make.Therefore, disk 26 is set to and is limited with the internal surface 42 formation sealing engagement of first main body portion 14 of internal cavities.
Shown in Fig. 2 A and 2B, valve rod 24 has along a part of axially passing through valve rod 24 and along the actuation air passage 44 that axially extends by disk 26.The far-end 46 that passage 44 has the near-end 45 that the actuation air import is provided and the actuation air outlet is provided.As in that institute is normally used in the art, term " gas " and " air " be synonym and contain any gas componant, comprise that those can contain to vaporize or the composition of atomizing fluids that for example can there be the purpose to be used to lubricate in they.Outlet 46 forms fluid with the part 48 that first axial orientation surface 32 of the close disk 26 of internal cavities 20 is provided with and is communicated with.Therefore, passage 44 is communicated with these part 48 formation fluids of cavity 20.As will describing in further detail subsequently, but passage 44 is with the mode of operation effect, to receive pressure actuated air via pressure air source and one or more at the fluid line that pipe joint for example stops in the pipe joint 30.Pressure air in the part 48 of cavity 20 applies towards the first axial orientation surface 32 of disk 26 along the active force of first axial direction of being represented by arrow 115.
Valve 10 also has the barrier film made from abrasion-resistant polymers 52 in the embodiment who is illustrated.Barrier film 52 has the hollow circuit cylinder portion 54 at the center of being arranged at, distal portion 56 threaded joint of this columnar portion and valve rod 24.Barrier film 52 also has along the ring part 58 that radially is arranged on hollow circuit cylinder portion 54 and distal portion 56 outsides.This ring part 58 of barrier film 52 is fixed in the body 12.More specifically, in the embodiment who is illustrated, this ring part 58 is fixed between main body portion 14 and 16, shown in Fig. 2 A and 2B.And barrier film 52 has the hollow circuit cylinder portion 54 of connection barrier film 52 and the flexible plate 60 of ring part 58.
Valve 10 has base 62, and this base is basic internal surface for the second plane main body portion 16.Valve 10 also has seal element or the connector 64 that is connected to valve rod 24.Seal element or connector 64 are that the basic of hollow circuit cylinder portion 54 of barrier film 52 is plane rounded ends.The advantage of the special tectonic of valve seat 62 and seal element or valve plug 64 will be described subsequently.
Valve 10 also has threaded fluid entry port 66, and it is suitable for receiving traditional screwed pipe joint, for example has the pipe joint 68 of inner passage 70.Valve 10 has a part by second main body portion 16 away from valve seat 62 axially extended second channels 72.This passage 72 has the opening 74 that is centered on by valve seat 62 at its close end.When valve 10 was shown in an open position, shown in Fig. 2 B, passage 72 formed fluid with valve seat 64 and is communicated with.But when valve 10 was in the closed position, shown in Fig. 2 A, valve rod 24 forced seal element or connector 64 opening 74 against base 62 and closing passage 72.As will describing in detail more subsequently, but passage or fluid output 72 work with mode of operation, receive for example pressure fluid and of fluid when being shown in an open position subsequently from valve 10 these fluids of discharging with the described valve of box lunch.
Third channel or fluid inlet 76 are formed in second main body portion 16 of valve 10, and are communicated with the storage 78 formation fluids that are provided with around valve seat 62.This storage 78 forms around relation with a part of the hollow circuit cylinder portion 54 of barrier film 52, and extends to a surface of the flexible plate 60 of barrier film 52.But passage 76 and storage 78 work with mode of operation, be used for from external source by one or more pipeline and then the inner passage by fluid coupling for example the passage 70 of pipe joint 68 receive for example pressure fluid of fluids.When valve 10 is shown in an open position, illustrate as flow arrows 79, along with fluid by passage 76, enter storage 78 and leave passage 72, because fluid diverting, the reduction that the special bowl-shape structure of storage 78 is favourable or eliminated and may be present in other situation that institute is received in the turbulent flow in wherein the pressure fluid and the generation of the bubble of being correlated with.According to concrete application, it is very favorable eliminating bubble in the fluid of being provided and delivered.For example, if the fluid of being provided and delivered is the bonding process that is used for digital video disk (DVD), then bubble does not wish to produce.
Passage 76 and storage 78 forms fluids and is communicated with, and no matter to be in the open position shown in Fig. 2 B still be closed position shown in Fig. 2 A to valve 10.But when valve 10 was shown in an open position, passage 76 and storage 78 and passage 72 formed fluids and is communicated with, and when valve 10 is in the closed position, then was not communicated with passage 72 formation fluids.
Valve 10 has what be bonded on main body portion 16 threadably with the position shown in 84 and basic is the termination locking nut 80 on the columniform part 82.It is columniform part 82 that termination connector (luer) 86 extends beyond the basic of main body portion 16.This termination locking nut 80 has belt recess 88, and it is used to receive the hub 90 of fluid dispensing termination 92.Therefore, nut 80 prevents that termination 92 is from connecting landing 86.Dispensing termination 92 does not form the part of valve 10.This dispensing termination 92 can be the termination that is had small end by EFD company (assignee of the present invention's wholly-owned subsidiary), and the concrete size of wherein selected dispensing termination is the function of the viscosity of institute's dispensing fluids.But, should be appreciated that the fluid dispensing termination that can be used in valve 10 of the present invention has wide in range range of choice.Valve 10 and fluid dispensing termination 92 combine and just constitute valve assembly.
Valve 10 also has the stroke control cap 100 that is arranged in the body 12.This stroke control cap 100 has first axial end portion 102 that engages threadably with the main body portion 14 of body 12 at 104 places.The axial orientation surface 108 that this control cap 100 also has internal cavities 106 and is positioned at its far-end.This axial orientation surface 108 of control cap 100 and the second axial orientation surface 34 of disk 26 are with the relative setting that concerns.When valve 10 was in closed position shown in Fig. 2 A, this axial orientation surface 108 of control cap 100 with the second axial orientation surface 34 of distance 110 and disk 26 separately.Distance 110 equals the stroke of valve 10.When valve 10 is shown in an open position when promptly all or fully opening shown in Fig. 2 B, the surface 108 of control cap 100 and the surface of disk 26 34 engage with the way of contact.
In the body 12 of valve 10, be provided with spring 112.In the embodiment who is illustrated, this spring 112 is disc spring and is arranged in the internal cavities 106 of control cap 100.Spring 112 is around the coaxial setting of valve rod 24 and extend axially between the second axial orientation surface 34 of inside panel 114 that is formed by control cap 100 and disk 26.The size of spring 112 is set to towards second axial orientation of disk 26 surface the 34 continuous biasing forces that apply, and this pressure is had an effect along second axial direction shown in the arrow in Fig. 2 A 116, and this direction is with aforesaid relative by the direction shown in the arrow 115.Therefore, at off position, when promptly when thereby pressure air does not supply to the part 48 of part 48 at cavity 20 of cavity 20 via passage 44 in, having atmospheric pressure, the biasing force that is applied towards the surface 34 of disk 26 by spring 112 force valve plug 64 against and form sealing engagement with valve seat 62, close second channel 72 thus and make valve 10 be in the closed position shown in Fig. 2 A.As describing subsequently, when the pressure in the cavity 48 applied active force greater than the biasing force on the surface 34 that is applied to disk 26 by spring 112 towards the surface 32 of disk 26, then valve 10 was in the open position shown in Fig. 2 B.
O shape ring 118 is arranged in the groove 120 that is formed in the stroke control cap 100 and forms contact-types with the internal surface 42 of the main body portion 14 of valve 12 and engages.The stroke 110 of valve 10 can change by regulating the position of stroke control cap 100 in main body portion 14.More specifically, stroke control cap 100 can further be screwed in the main body portion 14 to reduce the size of stroke 100, and perhaps controlling cap 100 can be along reducing to control the direction rotation of the threaded joint degree of cap 100 in main body portion 14 to increase the size of stroke 110.Can help control cap 100 to be screwed into from main body portion 14 or to back-out by tamperproof keyway or groove (not shown) in the surface 122 of control cap 100.Elasticity O shape ring 118 engages with the contact-type of the internal surface 42 of main body portion 14 and produce the frictional force that should be overcome when control cap 100 is screwed into or back-outs main body portion 14.Therefore, O shape ring 118 is for preventing that at the contingent stroke 110 that for example changes valve 10 in vibration environment unintentionally be effective.
In main body portion 14, form second cavity 132.This second cavity 132 is first axial end portion 134 that toroidal cavity and the flexible plate with close barrier film 52 60 are provided with.The 4th or discharge passage 136 be formed in the body 12 of valve 10.In the embodiment who is illustrated, passage 136 is formed in the main body portion 14 and forms fluid with second cavity 132 and is communicated with.Cavity 132 has been realized two following functions with combining of passage 136.At first, the flexible plate 60 that cavity 132 and passage 136 have prevented barrier film 52 is applied back pressure by the pressure air in any cavity 132 that is present in contiguous flexible plate 60, and this is by making this fluid realize by the outside that passage 136 leaks to valve 10.If flexible plate 60 will be applied in back pressure, then flexible plate 60 ability that deflections take place will be compromised, this will be be not supposed to, as by understandable to describing subsequently of the operation of valve 10.And if flexible plate 60 breaks in operation, then any pressure fluid that enters valve 10 by passage 76 will flow out from valve 10 by cavity 132 and passage 136, and the operator to any system of containing valve 10 provide indicating fault thus.
O shape ring 138 is sentenced around the relation of valve rod 24 at the part 48 of internal cavities 20 and the axial positions in the middle of the toroidal cavity 132 and is arranged on main body portion 14 in to prevent part 48 leakages of any pressure air from cavity 20.This O shape ring 138 utilizes packing ring 140 and clasp 142 to be held in place.
Can further understand the operation of valve 10 with reference to figure 2A, 2B and Fig. 3, Fig. 3 is the schematic representation of simplification that is combined with the fluid dispensing system 150 of valve assembly 152.This valve assembly 152 has valve 10 of the present invention and is fixed to fluid dispensing termination 92 on the valve 10.Fluid dispensing system 150 has pressure air source 154.Pressure air leaves by pipeline 155 from air source 154 and enters controller in 156 signals, and subsequently by another pipeline 158 that is connected with controller 156 fluids and the first pressure inlets end 160 of the two-way automatically controlled solenoid valve 162 of three ports.Valve 162 also has the second ventilation end the 164 and the 3rd end 166.When valve 162 outages,, breather port 164 is discharged in the atmosphere, as described later thereby being connected the part 48 interior pressure airs of the cavity 20 of valve 10 with port one 66 formation fluids.When valve 162 energisings, the port one 60 of valve 162 and 166 forms fluid and is connected, thereby pressure air can enter the pipe joint 30 that is connected with valve 10 by holding 166 discharges and the pipeline 168 of flowing through subsequently from valve 162.
And, when valve was in closed position shown in Fig. 2 A, any pressed gas (promptly be pressurised into and exceed atmospheric pressure) that is arranged in the part 48 of internal cavities 20 was discharged by the port one 66 of passage 44, pipe joint 30, pipeline 168, valve 162 and is drained into atmosphere via the port one 64 of valve 162.Accordingly, the bias effect power that is applied towards the axial orientation surface 34 of disk 26 along second axial direction shown in the arrow 116 by spring 112 forces the connector 64 of valve 10 to be resisted against on the base 62, thereby passage 72 is closed, and stops fluid 176 to be discharged from valve 10 thus.
When solenoid valve 162 energisings, pressure air flow to pipe joint 30 by pipeline 168 and enters in the passage 44 of valve 10.Air is through comprising that the passage 44 of shank 46 enters in the part 48 of internal cavities 20, and described part 48 is provided with near the axial orientation surface 32 of the disk 26 of piston 22.Pressure air applies active force along first axial direction shown in the arrow 115 towards surface 32.In one embodiment, when air has the pressure that is at least 70psig, then act on the active force of surface on 32 and be applied to biasing force on the surface 34 greater than spring 112.Therefore, thus valve rod 24 and disk 26 move axially valve 10 along direction 115 with respect to body 12 is in the open position shown in Fig. 2 B.But, be appreciated that in other embodiments, according to the relevant parameter of spring 112, the size of disk 26 etc., can change with respect to the required air pressure that body 12 moves valve rod 24 and disk 26 along direction 115.
Deflection takes place in the flexible plate 60 of barrier film 52 shown in Fig. 2 B, make the hollow circuit cylinder portion 54 of barrier film 52 and seal element or valve plug 64 move with valve rod 24 and disk 26 along direction 115 thus.This makes the connector 64 of valve 10 produce displacement from base 62, and this makes storage 78 and passage 70 and 76 be communicated with passage 72 formation fluids.Therefore, pressure fluid 176 passage 72 of flowing through, and be disposed to dispensing termination 92 from valve 10 at this passage place.Passage 72 is communicated with hollow dispensing pin 93 fluids of termination 92.Therefore, pressure fluid 176 is discharged on the workpiece 172 from the hollow dispensing pin 93 of termination 92.
Other member that valve 10 can be installed in the system 150 that has on the parts that are installed in automatic is for example on the mechanism hand (not shown) of the automatic (not shown) of controller 156, valve 162 and pipeline 158 and 168.The member of other of system 150 such as storage 174, for example can install on the ground or other surface of contiguous this automatic on.Flexible hose can be used at least some pipelines of system 150, as it is needed to be used to hold the valve 10 that is installed on the removable mechanism hand.
The basic of valve seat 62 and seal element or connector 64 be the design form on plane, makes valve 10 for example to provide full flow under the state by the only about half of stroke of 750 series of assignee of the present invention's EFD company of wholly-owned subsidiary manufacturing at current existing fluid dispensing valve.This be because, be the design form on plane than the basic of the valve seat 62 of valve 10 and seal element or connector 64, the valve plug/valve seat constructions of 750 series use tapers.Therefore, in valve 10, can realize the full flow of institute's dispensing fluids faster.
In one embodiment, valve 10 is for having the miniature diaphragm valve of less stroke 110.For example, stroke 110 can be about 0.025 inch.In this embodiment, valve 10 also has advantages of small integral size or envelope surface.For example, in this embodiment, be about 0.75 inch (19.05mm) corresponding to the Extreme breadth of the valve 10 of the outer diameter of main body portion 12 and 14.In this embodiment, the total length of the valve of measuring between the distal surface 87 of the end surfaces 29 of the close end 28 of valve rod 24 and connector 86 10 is about 2.5 inches (63.61mm).In this embodiment, the weight of valve 10 is about 1.62 ounces (45.9g).Itself and sidewall by valve are provided the following size and the weight of existing membrane valve of 750 series of control gaseous contrast: the Extreme breadth that is about 1.06 inches (26.97mm); The total length that is about 3.18 inches (80.91mm); The weight that is about 6.4 ounces (181.3g).Valve 10 of the present invention has been realized the reduction of above-mentioned size and weight with respect to the valve of existing 750 series, and this identical functions of the valve base feature with 750 series is provided simultaneously.For example, valve 10 provides essentially identical traffic characteristic, comprises peak rate of flow, and has realized essentially identical concentration for different liquid depositions, and the fluid dispensing that does not produce bubble is provided.And, kept reliable valve closed condition, and the ability of regulating flow, and for the barrier film that uses in the valve of 750 series, be not changed the working life of the barrier film 52 that is contained substantially.
Valve 10 in the remarkable reduction aspect weight and the size, brings multiple advantage with respect to above-mentioned existing valve.When valve 10 was installed on the mechanism hand, the reduction of valve weight had improved mechanism hand in the time required in production environment around a plurality of axis rotations and move to the ability of another position from a position.And the weight of the reduction of valve 10 can improve the working life of the automatic that uses this valve 10.
And in the time of on being installed in mechanism hand, valve 10 has improved the ability that other device touches workpiece, and described workpiece receives for example pressure fluid 176 of fluid from valve 10.
Though to detailed especially being described of the preferred embodiments of the present invention, should be appreciated that above, under not deviating from, can make various modifications, substitute and change as the prerequisite that is limited to true spirit of the present invention in the claim subsequently and scope.Therefore the present invention is not limited to described specific embodiment, but only is confined to content defined in the appended claims.
Claims (19)
1. valve that is used for the fluid dispensing system comprises:
Valve body with internal cavities;
Be installed in the described valve body in order to open and close the valve rod that moves axially between the position, described valve rod has the actuation air passage, this passage has air intlet and air outlet slit, and described air intlet is suitable for being connected to pressure actuated air source and described air outlet slit is connected with described internal cavities;
By the carrying of described valve rod and be arranged on piston element in the described internal cavities;
Fluid inlet, fluid output and the valve seat between described fluid inlet and described fluid output, when pressure actuated air was introduced in the described internal cavities by described actuation air passage and acts on described piston element, described valve rod can move towards described open position from described closed position with respect to described valve seat thus.
2. valve as claimed in claim 1, wherein:
Described actuation air passage extends axially and extends axially by described piston element by the part of described valve rod.
3. valve as claimed in claim 1 also comprises:
Be fixed on the described valve rod and the therewith axially movable basic plane seal element that is; And
Described valve seat is plane substantially;
When described valve rod is in described open position, described substantially be plane seal element with described be substantially plane valve seat separately;
When described valve rod is in described closed position, described basic for plane seal element is set to described basic for plane valve seat formation contacts and sealing engagement, thereby fluid output is sealed.
4. valve as claimed in claim 1, wherein:
Described piston element is that disk and pressure actuated air apply the active force that works along first axial direction on described disk; And
Described valve also comprises the spring that is arranged in the described body, and described spring applies biasing force on described disk, and described biasing force works along second axial direction relative with described first axial direction;
When being applied to active force on the described disk greater than the biasing force that is applied to by described spring on the described disk by pressure actuated air, described valve rod is set to be shown in an open position;
When being applied to biasing force on the described disk greater than the active force that is applied to by pressure actuated air on the described disk by described spring, described valve rod is set in the closed position.
5. valve as claimed in claim 4 also comprises:
Be arranged on the stroke control cap in the described body, described stroke control cap engages with described body, and described control cap has internal cavities and axial orientation surface, and described axial orientation surface is arranged on the far-end of described control cap;
The described axial orientation surface of described control cap is set to form relative relation with described disk;
When described valve rod is in described closed position, the described axial orientation surface of described control cap at a certain distance with described disk separately, described distance equals the stroke of described valve.
6. valve as claimed in claim 1 also comprises:
Be formed on the fluid storage in the described body;
Described storage is set to form around relation with described valve seat;
When described valve rod is in described open position and when described valve is in described closed position, described storage forms fluid with described fluid inlet and is communicated with;
When described valve rod was in described open position, described storage formed fluid with described fluid output and is communicated with, and when described valve is in described closed position, stoped to form the fluid connection between described storage and described fluid output.
7. valve as claimed in claim 5, wherein:
When described valve rod was in described open position, the described axial orientation surface of described control cap formed with described disk and contacts joint.
8. valve as claimed in claim 5, wherein said body have the internal surface that forms described internal cavities, and described valve also comprises:
Be arranged on the clasp in the groove in the described internal surface that is formed at described body, described clasp is from the inside extension of described inner surface radial direction, described clasp has with second distance and described disk axial orientation annular surface separately, and described second distance is greater than the described stroke of described valve.
9. valve as claimed in claim 1 also comprises:
Barrier film, it has the first portion that is fixed to described body, the second portion that is fixed to described valve rod and with interconnective the 3rd flex section of described first and second parts.
10. valve as claimed in claim 9, wherein:
The described second portion of described barrier film is the cylindrical part center of being arranged at, hollow;
The described first portion of described barrier film is arranged on the annular portion of the radially outer of described hollow circuit cylinder portion;
The described third part of described barrier film is a flexible plate, and described flexible plate partly interconnects described annular portion and described hollow circuit cylinder.
11. valve as claimed in claim 10, wherein:
Second main body portion that described body has first main body portion and engages with described first main body portion threadably;
The described annular portion of described barrier film is fixed between described first and second main body portioies.
12. valve as claimed in claim 5 also comprises:
Be arranged on the O shape ring in the groove that is formed in the described stroke control cap, described O shape ring forms with described body and contacts joint;
Described O shape ring can be operated the change unintentionally with described stroke.
13. valve as claimed in claim 1 also comprises:
Be formed on second cavity in the described body, described second cavity is the toroidal cavity with first axial end portion that is provided with near described barrier film; And
Be formed in the described body and discharge passage that the outer surface by described body extends, described discharge passage is communicated with described second cavity formation fluid.
14. a valve that is used for the fluid dispensing system comprises:
Valve body with internal cavities;
Be installed in the described valve body in order to open and close the valve rod that moves axially between the position;
Have the actuation air passage of actuation air import and actuation air outlet, described air intlet is suitable for being connected to pressure actuated air source and described air outlet slit is connected with described internal cavities;
By the carrying of described valve rod and be arranged on piston element in the described internal cavities;
Be fixed on the described valve rod and the therewith axially movable basic plane seal element that is;
Fluid inlet, fluid output and basic between described fluid inlet and described fluid output are plane valve seat, when pressure actuated air was introduced in the described internal cavities by described actuation air passage and acts on described piston element, described valve rod and described seal element moved towards described open position from described closed position with respect to described valve seat thus.
15. valve as claimed in claim 14, wherein:
Described actuation air passage extends axially and extends axially by described piston element by the part of described valve rod.
16. valve as claimed in claim 15 also comprises:
Barrier film, it has and is fixed to described valve rod so that the therewith axially movable hollow cylindrical part that is arranged on the center.
Described seal element is that the basic of hollow circuit cylinder portion of described barrier film is plane rounded ends.
17. valve as claimed in claim 16, wherein
Described barrier film also has the annular portion of the radially outer that is arranged on described hollow circuit cylinder portion, and flexible plate, and described flexible plate interconnects described annular portion and described hollow circuit cylinder portion.
18. a valve assembly that is used for the fluid dispensing system comprises:
Valve; And the fluid dispensing termination that is connected to described valve, described termination has the dispensing pin of hollow;
Described valve has:
Valve body with internal cavities;
Be installed in the described valve body in order to open and close the valve rod that moves axially between the position, described valve rod has the actuation air passage, this passage has air intlet and air outlet slit, and described air intlet is suitable for being connected to pressure actuated air source and described air outlet slit is connected with described internal cavities;
By the carrying of described valve rod and be arranged on piston element in the described internal cavities;
Fluid inlet, fluid output and the valve seat between described fluid inlet and described fluid output, when pressure actuated air was introduced in the described internal cavities by described actuation air passage and acts on described piston element, described valve rod moved towards described open position from described closed position with respect to described valve seat.
Be fixed to the termination locking nut of described body, described fluid dispensing termination is by described nut check;
Described fluid dispensing termination has the hollow needle that is communicated with the described fluid output formation fluid of described valve.
19. valve assembly as claimed in claim 18, wherein:
Described termination locking nut has annular recess;
Described fluid dispensing termination has hub, and described hub is arranged in the described recess.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61369204P | 2004-09-28 | 2004-09-28 | |
| US60/613,692 | 2004-09-28 | ||
| US11/160,214 | 2005-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1796844A true CN1796844A (en) | 2006-07-05 |
Family
ID=36818084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510113353 Pending CN1796844A (en) | 2004-09-28 | 2005-09-28 | Diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1796844A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102549322A (en) * | 2009-08-19 | 2012-07-04 | 株式会社小金井 | Diaphragm valve |
| CN105705850A (en) * | 2013-11-04 | 2016-06-22 | 萨姆斯技术公司 | Device for supplying a sprayer with a liquid coating product |
| CN105705251A (en) * | 2013-11-04 | 2016-06-22 | 萨姆斯技术公司 | Device for supplying a sprayer with a liquid coating product and tool for mounting/dismounting such a device |
| CN106907494A (en) * | 2017-01-13 | 2017-06-30 | 珠海优特物联科技有限公司 | Valve and proportioning machine |
| CN110192054A (en) * | 2016-12-12 | 2019-08-30 | 株式会社富士金 | Valve and semiconductor manufacturing apparatus |
| CN110214244A (en) * | 2017-01-31 | 2019-09-06 | 株式会社开滋Sct | Valve actuator and the diaphragm valve for having it |
| CN113544420A (en) * | 2019-03-08 | 2021-10-22 | 应用材料公司 | Diaphragm valve and method of operating diaphragm valve |
| CN113853494A (en) * | 2019-05-17 | 2021-12-28 | 朗姆研究公司 | Cooling air actuated valve using actuation air |
-
2005
- 2005-09-28 CN CN 200510113353 patent/CN1796844A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102549322A (en) * | 2009-08-19 | 2012-07-04 | 株式会社小金井 | Diaphragm valve |
| CN102549322B (en) * | 2009-08-19 | 2013-11-06 | 株式会社小金井 | Diaphragm valve |
| US10035161B2 (en) | 2013-11-04 | 2018-07-31 | Sames Kremlin | Device for supplying a sprayer with a liquid coating product |
| CN105705251A (en) * | 2013-11-04 | 2016-06-22 | 萨姆斯技术公司 | Device for supplying a sprayer with a liquid coating product and tool for mounting/dismounting such a device |
| CN105705251B (en) * | 2013-11-04 | 2017-10-10 | 萨姆斯克里姆林公司 | Instrument for liquid coated product to be supplied to the device and attaching/detaching of the sprayer device |
| CN105705850A (en) * | 2013-11-04 | 2016-06-22 | 萨姆斯技术公司 | Device for supplying a sprayer with a liquid coating product |
| US10137468B2 (en) | 2013-11-04 | 2018-11-27 | Sames Kremlin | Device for supplying a sprayer with a liquid coating product and tool for mounting/dismounting such a device |
| CN110192054A (en) * | 2016-12-12 | 2019-08-30 | 株式会社富士金 | Valve and semiconductor manufacturing apparatus |
| CN106907494A (en) * | 2017-01-13 | 2017-06-30 | 珠海优特物联科技有限公司 | Valve and proportioning machine |
| CN106907494B (en) * | 2017-01-13 | 2018-11-06 | 珠海优特智厨科技有限公司 | Valve and proportioning machine |
| CN110214244A (en) * | 2017-01-31 | 2019-09-06 | 株式会社开滋Sct | Valve actuator and the diaphragm valve for having it |
| CN113544420A (en) * | 2019-03-08 | 2021-10-22 | 应用材料公司 | Diaphragm valve and method of operating diaphragm valve |
| CN113544420B (en) * | 2019-03-08 | 2023-12-08 | 应用材料公司 | Diaphragm valve and method of operating a diaphragm valve |
| CN113853494A (en) * | 2019-05-17 | 2021-12-28 | 朗姆研究公司 | Cooling air actuated valve using actuation air |
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