CN204602479U - Film spray valve - Google Patents
Film spray valve Download PDFInfo
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- CN204602479U CN204602479U CN201520320923.5U CN201520320923U CN204602479U CN 204602479 U CN204602479 U CN 204602479U CN 201520320923 U CN201520320923 U CN 201520320923U CN 204602479 U CN204602479 U CN 204602479U
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Abstract
The utility model discloses a kind of film spray valve, this spray valve comprises stroke regulating lever, cylinder block, liquid control block and nozzle; Nozzle is installed in the below of liquid control block, and the below of cylinder block is installed in the top of liquid control block, and stroke regulating lever is connected to the top of cylinder block, and carrys out the movement travel of control cylinder body inner carrier by adjustment stroke adjusting rod; The bottom of piston is fixed with the needle carrying out with piston being synchronized with the movement, through nozzle interior after running through the bottom of cylinder block and liquid control block when this needle moves downward successively; This needle, under the drive of piston, moves up and down the opening and closing of Control Nozzle; Needle moves up, and in liquid control block, liquid is under the effect of external pressure, enters nozzle, and formed through nozzle and spray on surface of the work after fluid film, nozzle has micro-hole and V-shaped groove.The utility model does not need to protect with the position that gummed paper can not spray in advance, improves production efficiency, reduces production cost.
Description
Technical field
The utility model relates to spraying field, particularly relates to a kind of film spray valve.
Background technology
In the spraying industry of spraying industry, particularly circuit board anticorrosive, the converter circuit plate of such as industry automatic control product, PLC, Industrial PC wiring board; The air-conditioning control panel of household electric appliances, washing machine control panel; The circuit board of automobile industry, all needs to carry out circuit board protection against the tide, Anticorrosion measure.Mainly on circuit board finished product, apply one deck resin material at present, such as alkyd resins, polyurethane, acrylic resin, organic siliconresin, epoxy resin, polyester etc., the coating processes adopted has brushing, hand spray, automatic coating etc., because automatic coating reduces personnel labor intensity, do not affect health, spray uniformity, best in quality simultaneously
Obtain applying more widely, but automatic spraying equipment uses atomization spray valve usually, atomization spray valve has air to participate in the atomizing of liquid when spraying, particle contamination product and the equipment of atomization can be caused, simultaneously owing to having the pollution flying mist other places can waftd to product and cause product in air, so need the position gummed paper that can not spray in advance to protect, thus reduce production efficiency, improve production and human cost; Meanwhile, owing to using atomizer liquid, some changes into mist particles, reduces the utilization rate of material; Special in circuit board anticorrosion with painting corrosion material, atomizing spraying also can cause the taboo spraying area of the conductions such as connector pollute and occur the phenomenon that quality is bad.
Utility model content
For the weak point existed in above-mentioned technology, the utility model provides the film spray that a kind of production efficiency is high and production cost is low valve, can not produce aerosol, improve the utilization rate of material in spraying process.
For achieving the above object, the utility model provides a kind of film to spray valve, comprises stroke regulating lever, cylinder block, liquid control block and nozzle; Described nozzle is installed in the below of liquid control block, and the below of described cylinder block is installed in the top of liquid control block, and described stroke regulating lever is connected to the top of cylinder block, and carrys out the movement travel of control cylinder body inner carrier by adjustment stroke adjusting rod; The bottom of described piston is fixed with the needle carrying out with piston being synchronized with the movement, and this needle is through nozzle interior after running through the bottom of cylinder block and liquid control block downwards successively, and this needle moves up and down the opening and closing of Control Nozzle under the drive of piston; Needle moves up, and in liquid control block, liquid is under the effect of external pressure, enters nozzle and sprays on surface of the work after nozzle formation fluid film; Described nozzle has micro-hole and V-shaped groove,
Wherein, described stroke regulating lever comprises microdrum knob, locking knob, screw mandrel and dial; Described screw mandrel runs through out inside dial, microdrum knob is fixedly packed into above dial by screw thread, microdrum knob top is connected with the top of screw mandrel, and described screw mandrel is moved up and down by the adjustment of microdrum knob and the bottom of described screw mandrel can be arrived by piston top; Described stroke regulating lever bottom is fixed in cylinder block by screw thread, and after the locking knob locking above screw thread, the effect of fixing leading screw is played in the gap of reducing between dial and screw mandrel; The below of described microdrum knob is provided with the dial of the regulation depth for determining screw mandrel.
Wherein, described cylinder block also comprises gas seat and lower gas seat; Described upper gas seat is fixedly connected with lower gas seat and encloses the inner chamber of a built-in piston, and this inner chamber is separated into upper cavity and lower chamber by piston, and described upper gas seat is provided with upper air joint, and upper air joint is provided with the enterprising pore communicated with upper cavity; Described lower gas seat is provided with lower inlet suction port, and lower inlet suction port is provided with the lower air admission hole communicated with lower chamber; After upper cavity enters compressed air and lower chamber discharges compressed air, piston driving needle down moves; When lower chamber enters compressed air and upper cavity is discharged after compressed air, piston driving needle up moves, and after described piston upwards contacts with screw mandrel, needle stop motion; Seal cover is provided with below described lower gas seat, by screw, upper gas seat, lower gas seat and seal cover are fixed together, between described upper gas seat and lower gas seat, between upper gas seat and screw mandrel, between piston and lower gas seat and between seal cover and lower gas seat, are equipped with sealing ring.
Wherein, described liquid control block comprises stud, base, seal and sealing locking knob, the top of described stud is fixedly connected with lower gas seat, and described base is fixedly connected with the bottom of stud, the bottom of described base is fixedly connected with nozzle, rotary cylinder holder is fixed on the side of base, and a first liquid chamber is formed at the bottom of described base, and the top internal fixtion of described base has the seal holding needle and run through; Described seal is provided with the sealing locking knob for lock sealing part; The side of described base is provided with liquid inlet joint, and this liquid inlet joint is provided with the inlet communicated with first liquid chamber, and liquid, under the effect of external pressure, enters rear from inlet and is full of first liquid chamber.
Wherein, described seal is made up of polytetrafluoroethylmaterial material, and the shape of seal is two is conical cylinder; Seal deformed dilation after screwing hermetic locking knob also closely cooperates with needle and base.
Wherein, described nozzle comprises connecting rod and thin-film heads, the top of described connecting rod is fixedly connected with base, and the bottom of connecting rod is fixedly connected with thin-film heads, between described connecting rod and base, between nozzle and connecting rod, be equipped with sealing ring, be provided with the second liquid chamber holding needle and liquid in described connecting rod, and the bottom of this connecting rod is provided with the valve cavity communicated with thin-film heads.
Wherein, described thin-film heads inside is provided with the 3rd fluid chamber, and described micro-hole to be placed in below the 3rd fluid chamber and to communicate with it, and described V-shaped groove is positioned at the bottom of thin-film heads and communicates with micro-hole; When needle moves upward, the tip portion of needle leaves valve cavity, and liquid enters the 3rd fluid chamber from valve cavity, and under fluid pressure, the liquid of the 3rd fluid chamber enters micro-hole, then forms film through V-shaped groove.
Wherein, described micro-hole is circular hole, tri-angle-holed or quadrilateral hole, and described micro-hole is the hole be processed to form by electric spark, laser, brill milling or chemical attack; The size of described micro-hole is between 0.01mm to 3.0mm.
Wherein, described mold insert is fixed in the bottom of split, and this micro-hole and V-shaped groove are from top to bottom successively set in mold insert.
The beneficial effects of the utility model are: compared with prior art, the film spray valve that the utility model provides, by piston and needle coordinate realize both move up and down, through nozzle interior after running through the bottom of cylinder block and liquid control block when this needle moves downward successively, in liquid control block, liquid is under the effect of external pressure, enters nozzle and spray to surface of the work after nozzle formation fluid film; This spray valve is non-atomized spraying, and the line edge of spraying is clear, does not splash and burr, so when actual spraying operation, does not need to protect with the position that gummed paper can not spray in advance, enhance productivity, reduce production cost; And this spray valve can not produce aerosol in spraying process, the utilization rate of material can reach more than 99%.The utility model have reasonable in design, production efficiency is high, production cost is low, stock utilization is high and the product yield high that sprays out.
Accompanying drawing explanation
Fig. 1 is the sectional view of film of the present utility model spray valve;
Fig. 2 is the side view of film of the present utility model spray valve;
Fig. 3 is the sectional view at nozzle A place in the utility model;
Fig. 4 is the front view of the first thin-film heads of the utility model;
Fig. 5 is the sectional view of Fig. 4;
Fig. 6 is the upward view of Fig. 4;
Fig. 7 is the front view of the utility model the second thin-film heads;
Fig. 8 is the sectional view of Fig. 7;
Fig. 9 is the upward view of Fig. 7.
Main element symbol description is as follows:
10, stroke regulating lever 20, cylinder block
30, liquid control block 40, nozzle
50, needle 60, film
70, workpiece 101, microdrum knob
102, locking knob 103, screw mandrel
104, dial 201, piston
202, upper gas seat 203, lower gas seat
204, upper cavity 205, lower chamber
206, upper air joint 207, enterprising pore
208, lower inlet suction port 209, lower air admission hole
210, seal cover 211, sealing ring
301, stud 302, base
303, first liquid chamber 304, seal
305, locking knob 306, liquid inlet joint is sealed
307, inlet 401, connecting rod
402, second liquid chamber 403, valve cavity
501, syringe needle 404a, thin-film heads
4041a, the 3rd fluid chamber 4042a, micro-hole
4043a, V-shaped groove 4044a, split
4045a, mold insert 404b, thin-film heads
4041b, the 3rd fluid chamber 4042b, micro-hole
4043b, the first V-shaped groove 4044b, split
4045b, mold insert 4046b, the second V-shaped groove.
212, screw 405, liquid-stopping seal circle.
Detailed description of the invention
In order to more clearly state the utility model, below in conjunction with accompanying drawing, the utility model is further described.
Refer to Fig. 1-2, the film spray valve that the utility model provides, comprises stroke regulating lever 10, cylinder block 20, liquid control block 30 and nozzle 40; Nozzle 40 is installed in the below of liquid control block 30, and cylinder block 20 is installed in the top of liquid control block 30, and stroke regulating lever 10 is connected to the top of cylinder block 20, and carrys out the movement travel of control cylinder body 20 inner carrier 201 by adjustment stroke adjusting rod 10; The bottom of piston 201 is fixed with the needle 50 carrying out with piston 201 being synchronized with the movement, and this needle 50 runs through bottom and rear through nozzle 40 inside of liquid control block 30 of cylinder block 20 downwards successively; Needle 50, under the drive of piston 201, moves up and down the opening and closing of Control Nozzle; Needle 50 moves up, and in liquid control block 30, liquid is under the effect of external pressure, enters nozzle 40, is formed after fluid film 60 spray to workpiece 70 on the surface through nozzle 40; Nozzle has micro-hole and V-shaped groove.
Compared to the situation of prior art, the film spray valve that the utility model provides, by piston 201 and needle 50 coordinate realize both move up and down, this needle 50 runs through bottom and rear through nozzle 40 inside of liquid control block 30 of cylinder block 20 downwards successively, needle 50, under the drive of piston 201, moves up and down closedown and the unlatching of Control Nozzle; Needle 50 moves up, and in liquid control block 30, liquid is under the effect of external pressure, enters nozzle 40, is formed after fluid film 60 spray to workpiece 70 surface through nozzle 40; This spray valve is non-atomized spraying, and the line edge of spraying is clear, does not splash and burr, so when actual spraying operation, does not need to protect with the position that gummed paper can not spray in advance, enhance productivity, reduce production cost; And this spray valve can not produce aerosol in spraying process, the utilization rate of material can reach more than 99%.The utility model have reasonable in design, production efficiency is high, production cost is low, stock utilization is high and the product yield high that sprays out.
In the present embodiment, stroke regulating lever 10 comprises microdrum knob 101, locking knob 102, screw mandrel 103 and dial 104; The top of microdrum knob 101 is fixedly connected with the top of screw mandrel 103, and screw mandrel 103 is moved up and down by the adjustment of microdrum knob 101 and is accessibly connected with piston 201; After locking knob 102 is locked, decrease the gap between screw mandrel 103 and dial 104, thus play fixation, stroke regulating lever 10 is fixed in cylinder block 20 by screw thread.The depth value of screw mandrel 103 is determined by the numerical value of microdrum knob 101 and dial 104, and read the scale of microdrum knob 101 and dial 104, accurately can control stroke, Stroke Control degree of regulation can reach 0.02mm.Stroke regulating lever is a kind of piston stroke adjusting device of optimum, also comprises threaded adjusting mechanism not with a scale or other governor motions.
In the present embodiment, cylinder block 20 also comprises gas seat 202 and lower gas seat 203; Upper gas seat 202 is fixedly connected with lower gas seat 203 and encloses the inner chamber of a built-in piston 201, this inner chamber is separated into upper cavity 204 and lower chamber 205 by piston 201, upper gas seat 202 is provided with upper air joint 206, and upper air joint 206 is provided with the enterprising pore 207 communicated with upper cavity 204; Lower gas seat 203 is provided with lower inlet suction port 208, and lower inlet suction port 208 is provided with the lower air admission hole 209 communicated with lower chamber 205; After upper cavity 204 enters compressed air and lower chamber 205 discharges compressed air, piston 201 drives needle 50 down to move; After lower chamber 205 enters compressed air and upper cavity 204 discharges compressed air, piston 201 drives needle 50 up to move, and after piston 201 contacts with screw mandrel 103, needle 50 stop motion.By controlling the pressure of upper cavity 204 and lower chamber 205 pairs of pistons 201, piston 201 is allowed to move up and down in cylinder block 20 inside, needle 50 is driven to move up and down, upper air joint is fixed on upper gas seat by screw thread, lower inlet suction port is fixed on lower gas seat by screw thread, stroke regulating lever 10 is fixed on upper gas seat by screw thread, certainly can also fix above-mentioned parts by other means.
In the present embodiment, seal cover 210 is provided with below lower gas seat 203, by screw 212, upper gas seat 202, lower gas seat 203 and seal cover 210 are fixed together, between upper gas seat 202 and lower gas seat 203, between upper gas seat 202 and screw mandrel 103, between piston 201 and lower gas seat 203, between seal cover 210 and lower gas seat 203, are equipped with sealing ring 211.Sealing ring 211 prevents the compressed air in upper cavity from revealing between upper gas seat and lower gas seat, prevent the compressed air in upper cavity from revealing between upper gas seat and screw mandrel 103, prevent the compressed air in upper cavity from entering in lower chamber, equally, also prevent the compressed air in lower chamber from entering in upper cavity and prevent the compressed air in lower chamber from revealing from the bottom of lower gas seat, prevent compressed air from revealing from needle, seal cover 210 chokes sealing ring and prevents compressed-air actuated leakage, screw 212 can run through gas seat simultaneously, lower gas seat, then be fixed on seal cover 210, the mode that control piston moves up and down not only passes through the compressed air of gas seat up and down, also piston up-down can be allowed by other modes such as springs, as long as the embodiment of piston up-down can be realized, all belong to the simple deformation to this case or conversion, fall in the protection domain of this case.
In the present embodiment, liquid control block 30 comprises stud 301, base 302, seal 304 and sealing locking knob 305.The top of stud 301 is fixedly connected with by screw 212 with lower gas seat 203 and seal cover 210, and base 302 is fixedly connected with the bottom of stud 301, the bottom of base 302 is fixedly connected with nozzle 40, and a first liquid chamber 303 is formed at the bottom of base 302, the top internal fixtion of base 302 has the seal 304 holding needle 50 and run through; Seal 304 is provided with the sealing locking knob 305 for lock sealing part 304.The side of base 302 is provided with liquid inlet joint 306, and this liquid inlet joint 306 is provided with the inlet 307 communicated with first liquid chamber 303, and liquid enters rear from inlet 307 and is full of first liquid chamber 303.Stud is threaded connection lower gas seat 203, seal cover 201 and base 302, liquid enters from inlet 307 under the effect of external pressure, then riddle in first liquid chamber 303, sealing locking knob 305 is fixed on above base 302 by screw thread, be used for locking, fixing, squeeze sealing member 304, locate the position of needle 50 simultaneously.Screwing hermetic locking knob 305 makes seal 304 deformed dilation and closely cooperates with needle 50 and base 302 to play sealing function, and this sealing function is also very good when valve needle movements, thus stops liquid to overflow from liquid control block.Seal 304 is made up of polytetrafluoroethylene (PTFE) or other similar wear-resistance and anti-corrosion deformable plastic materials, and the shape of seal 304 is cylinder or two is conical cylinder.
Please consult Fig. 3 further, nozzle 40 comprises connecting rod 401 and thin-film heads 404a, the top of connecting rod 401 is fixedly connected with base 302, liquid-stopping seal circle 405 is provided with between connecting rod 401 and base 302, sealing ring 405 prevents liquid from revealing between connecting rod 401 and base 302, and the bottom of connecting rod 401 is fixedly connected with thin-film heads 404a, liquid-stopping seal circle 405 is provided with between connecting rod 401 and thin-film heads 404a, sealing ring 405 prevents liquid from revealing between connecting rod 401 and thin-film heads 404a, the second liquid chamber 402 holding needle 50 and liquid is provided with in connecting rod 401, and the bottom of this connecting rod 401 is provided with the valve cavity 403 communicated with thin-film heads 404a.The needle point 501 of needle 50 is conical, needle 50 runs through liquid control block, second liquid chamber, then arrives at valve cavity 403, when the piston 201 of cylinder block 20 drives needle 50 to move down, needle point 501 enters valve cavity 403, needle point 501 blocks valve cavity 403 under pressure, membrane valve is in closed condition, and liquid can not flow into thin-film heads 404a; When the piston 201 of cylinder block 20 drives needle 50 to move up, gap is formed between needle point 501 and valve cavity 403, membrane valve is in opening, liquid flows into thin-film heads 404a from this gap under the effect of the pressure and sprays, the Stroke Control that the size of this gap drives needle-valve 50 to move up by piston 201, and this trip is larger, this gap is larger, then the flow of spraying liquid is larger, otherwise otherwise, this trip carrys out regulable control by stroke regulating lever 10.
Refer to Fig. 4-6, for the first thin-film heads that the utility model provides, thin-film heads 404a inside is provided with the 3rd fluid chamber 4041a, micro-hole 4042a is placed in below the 3rd fluid chamber 4041a and communicate with it, and micro-hole 4042a is opened in the bottom of thin-film heads 404a and communicates with V-type groove 4043a; When needle moves upward, the needle point 501 of needle leaves valve cavity, and liquid enters the 3rd fluid chamber 4041a from valve cavity, and under fluid pressure, the liquid of the 3rd fluid chamber 4041a enters in micro-hole 4042a, then forms film through V-shaped groove 4043a.The needle point 501 of needle 50 is conical, and needle 50 runs through liquid control block, then arrives at valve cavity 403, by the folding of needle point and valve cavity, control liquid by or close.Thin-film heads 404a comprises split 4044a and mold insert 4045a, mold insert 4045a is fixed in the bottom of split 4044a, and this micro-hole 4042a and V-shaped groove 4043a from top to bottom sets gradually, micro-hole 4042a is arranged in mold insert 4045a, and V-shaped groove 4043a is arranged in mold insert 4045a and split 4044a.Micro-hole 4042a is other holes such as circular hole, tri-angle-holed, quadrilateral hole; Micro-hole 4042a is by laser, the hole of boring the formation of other processing modes such as milling, electric spark, chemical attack, auxiliary process processing; The size of micro-hole 4042a is between 0.01mm to 3.0mm.
Please consult Fig. 7-9 further, for the second thin-film heads that the utility model provides, thin-film heads 404b inside is provided with the 3rd fluid chamber 4041b, micro-hole 4042b to be placed in below the 3rd fluid chamber 4041b and to communicate with it, and the first V-type groove 4043b and the second V-type groove 4046b is opened in the bottom of thin-film heads 404b and all communicates with micro-hole 4042b.When needle moves upward, the needle point of needle leaves valve cavity, and liquid enters the 3rd fluid chamber 4041b from valve cavity, and under fluid pressure, the liquid of the 3rd fluid chamber 4041b enters in micro-hole 4042b, then forms film through V-shaped groove 4043b.Thin-film heads 404b comprises split 4044b and mold insert 4045b, and mold insert 4045b is fixed in the bottom of split 4044b, and micro-hole 4042b and the first V-type groove 4043b is successively set in mold insert 4045b from top to bottom, and the second V-type groove 4046b is arranged in split 4044b.In mold insert 4045b and split 4044b, respectively arrange a V-type groove in this structure, the second V-type groove 4046b is different from the angle of the first V-type groove 4043b, and the angle of the second V-type groove 4046b is more than or equal to the angle of the first V-type groove 4043b.Micro-hole 4042b is other holes such as circular hole, tri-angle-holed, quadrilateral hole; Micro-hole 4042b is by laser, the hole of boring the formation of other processing modes such as milling, electric spark, chemical attack, auxiliary process processing; The size of micro-hole 4042b is between 0.01mm to 3.0mm.
Thin-film heads also can be as a whole, and micro-hole and V-type groove are from top to bottom successively set in thin-film heads.
Advantage of the present utility model is:
1) use stroke regulating lever to read the scale of microdrum knob and dial, can control stroke accurately, stroke adjustment precision can reach 0.02mm;
2) adopting needle point sealing, by regulating the gap between needle point and valve cavity, conveniently regulating the thin-film width spraying out and quantity for spray;
3) spraying rate is fast, and the spraying width of film spray valve and effect, not by the impact of speed, so spraying rate can reach 800mm/s, save spray time more than 30% than hand spray and atomization spray valve;
4) save material, because film spray valve is non-atomized spray valve, during coating, do not need compressed air atomizing, so do not fly the generation of mist during spraying, so stock utilization can reach 99.9%;
5) production efficiency is high, does not fly the generation of mist, do not need the position sprayed to be contaminated by the liquid due to during film spray valve spraying, so the position not needing personnel to shift to an earlier date the protection of rubberizing paper to forbid applying, improves production efficiency;
6) reduce production cost, save the protection of personnel's rubberizing paper, save gummed paper cost;
7) this film spray valve is applicable to the spraying of whole workpiece such as circuit board, plastic parts, hardware, handware, golf, and sprayed on material comprises coating, three anti-paints, coating type paint conformal coating, glue, ink etc.
Be only several specific embodiment of the present utility model above, but the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (9)
1. a film spray valve, is characterized in that, comprise stroke regulating lever, cylinder block, liquid control block and nozzle; Described nozzle is installed in the below of liquid control block, and the below of described cylinder block is installed in the top of liquid control block, and described stroke regulating lever is connected to the top of cylinder block, and carrys out the movement travel of control cylinder body inner carrier by adjustment stroke adjusting rod; The bottom of described piston is fixed with the needle carrying out with piston being synchronized with the movement, and this needle is through nozzle interior after running through the bottom of cylinder block and liquid control block downwards successively, and this needle moves up and down the opening and closing of Control Nozzle under the drive of piston; Needle moves up, and in liquid control block, liquid is under the effect of external pressure, enters nozzle and sprays on surface of the work after nozzle formation fluid film; Described nozzle has micro-hole and V-shaped groove.
2. film spray valve according to claim 1, it is characterized in that, described stroke regulating lever comprises microdrum knob, locking knob, screw mandrel and dial; Described screw mandrel runs through out inside dial, microdrum knob is fixedly packed into above dial by screw thread, microdrum knob top is connected with the top of screw mandrel, and described screw mandrel is moved up and down by the adjustment of microdrum knob and the bottom of described screw mandrel can be arrived by piston top; Described stroke regulating lever bottom is fixed in cylinder block by screw thread, and after the locking knob locking above screw thread, the effect of fixing leading screw is played in the gap of reducing between dial and screw mandrel; The below of described microdrum knob is provided with the dial of the regulation depth for determining screw mandrel.
3. film spray valve according to claim 1, it is characterized in that, described cylinder block also comprises gas seat and lower gas seat; Described upper gas seat is fixedly connected with lower gas seat and encloses the inner chamber of a built-in piston, and this inner chamber is separated into upper cavity and lower chamber by piston, and described upper gas seat is provided with upper air joint, and upper air joint is provided with the enterprising pore communicated with upper cavity; Described lower gas seat is provided with lower inlet suction port, and lower inlet suction port is provided with the lower air admission hole communicated with lower chamber; After upper cavity enters compressed air and lower chamber discharges compressed air, piston driving needle down moves; When lower chamber enters compressed air and upper cavity is discharged after compressed air, piston driving needle up moves, and after described piston upwards contacts with screw mandrel, needle stop motion; Seal cover is provided with below described lower gas seat, by screw, upper gas seat, lower gas seat and seal cover are fixed together, between described upper gas seat and lower gas seat, between upper gas seat and screw mandrel, between piston and lower gas seat and between seal cover and lower gas seat, are equipped with sealing ring.
4. film spray valve according to claim 1, it is characterized in that, described liquid control block comprises stud, base, seal and sealing locking knob, the top of described stud is fixedly connected with lower gas seat, and described base is fixedly connected with the bottom of stud, the bottom of described base is fixedly connected with nozzle, and rotary cylinder holder is fixed on the side of base, and a first liquid chamber is formed at the bottom of described base, the top internal fixtion of described base has the seal holding needle and run through; Described seal is provided with the sealing locking knob for lock sealing part; The side of described base is provided with liquid inlet joint, and this liquid inlet joint is provided with the inlet communicated with first liquid chamber, and liquid, under the effect of external pressure, enters rear from inlet and is full of first liquid chamber.
5. film spray valve according to claim 4, it is characterized in that, described seal is made up of polytetrafluoroethylmaterial material, and the shape of seal is two is conical cylinder; Seal deformed dilation after screwing hermetic locking knob also closely cooperates with needle and base.
6. film spray valve according to claim 1, it is characterized in that, described nozzle comprises connecting rod and thin-film heads, the top of described connecting rod is fixedly connected with base, and the bottom of connecting rod is fixedly connected with thin-film heads, between described connecting rod and base, between nozzle and connecting rod, be equipped with sealing ring, be provided with the second liquid chamber holding needle and liquid in described connecting rod, and the bottom of this connecting rod be provided with the valve cavity communicated with thin-film heads.
7. film according to claim 6 spray valve, it is characterized in that, described thin-film heads inside is provided with the 3rd fluid chamber, and described micro-hole to be placed in below the 3rd fluid chamber and to communicate with it, and described V-shaped groove is positioned at the bottom of thin-film heads and communicates with micro-hole; When needle moves upward, the tip portion of needle leaves valve cavity, and liquid enters the 3rd fluid chamber from valve cavity, and under fluid pressure, the liquid of the 3rd fluid chamber enters micro-hole, then forms film through V-shaped groove.
8. film spray valve according to claim 7, it is characterized in that, described micro-hole is circular hole, tri-angle-holed or quadrilateral hole, and described micro-hole is the hole be processed to form by electric spark, laser, brill milling or chemical attack; The size of described micro-hole is between 0.01mm to 3.0mm.
9. film spray valve according to claim 7, it is characterized in that, described thin-film heads comprises split and mold insert, and described mold insert is fixed in the bottom of split, and this micro-hole and V-shaped groove are from top to bottom successively set in mold insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520320923.5U CN204602479U (en) | 2015-05-19 | 2015-05-19 | Film spray valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520320923.5U CN204602479U (en) | 2015-05-19 | 2015-05-19 | Film spray valve |
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| CN204602479U true CN204602479U (en) | 2015-09-02 |
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| CN201520320923.5U Active CN204602479U (en) | 2015-05-19 | 2015-05-19 | Film spray valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670903A (en) * | 2017-10-24 | 2018-02-09 | 业成科技（成都）有限公司 | Point glue equipment, spray valve and nozzle |
| CN108772222A (en) * | 2018-06-11 | 2018-11-09 | 重庆大学 | One kind is from pressurized water jet flow generating method and system |
| CN110038746A (en) * | 2019-04-28 | 2019-07-23 | 宁波市奉化弘博自动化科技有限公司 | A kind of high-precision needle mist valve |
| CN114904720A (en) * | 2022-05-09 | 2022-08-16 | 珠海格力智能装备有限公司 | Spray valve device, glue sprayer and glue spraying method |
-
2015
- 2015-05-19 CN CN201520320923.5U patent/CN204602479U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670903A (en) * | 2017-10-24 | 2018-02-09 | 业成科技（成都）有限公司 | Point glue equipment, spray valve and nozzle |
| CN107670903B (en) * | 2017-10-24 | 2020-04-14 | 业成科技（成都）有限公司 | Dispensing device, spray valve and nozzle |
| CN108772222A (en) * | 2018-06-11 | 2018-11-09 | 重庆大学 | One kind is from pressurized water jet flow generating method and system |
| CN108772222B (en) * | 2018-06-11 | 2020-07-03 | 重庆大学 | Self-pressurization water jet generation method and system |
| CN110038746A (en) * | 2019-04-28 | 2019-07-23 | 宁波市奉化弘博自动化科技有限公司 | A kind of high-precision needle mist valve |
| CN114904720A (en) * | 2022-05-09 | 2022-08-16 | 珠海格力智能装备有限公司 | Spray valve device, glue sprayer and glue spraying method |
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