CN109513531B - Paint nozzle - Google Patents
Paint nozzle Download PDFInfo
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- CN109513531B CN109513531B CN201811645884.0A CN201811645884A CN109513531B CN 109513531 B CN109513531 B CN 109513531B CN 201811645884 A CN201811645884 A CN 201811645884A CN 109513531 B CN109513531 B CN 109513531B
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- blocking
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
- B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3026—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a gate valve, a sliding valve or a cock
Abstract
The invention discloses a paint nozzle, which comprises a base body, wherein a paint channel and an atomization channel are arranged in the base body, inlets of the paint channel and the atomization channel are positioned on the same side surface of the base body, the atomization channel linearly penetrates through the base body, a paint channel interface is arranged in the middle of the atomization channel, an outlet of the paint channel is communicated with the atomization channel through the paint channel interface, a spray width adjusting nozzle is further arranged on the base body, an outlet of the atomization channel is communicated with an inlet of the spray width adjusting nozzle, the paint channel comprises an upstream flow channel, a midstream flow channel and a downstream flow channel which are sequentially communicated along the flow direction, a blocking cavity is arranged between the upstream flow channel and the midstream flow channel, an air pressure blocking piece is arranged in the blocking cavity, a flow adjusting cavity is arranged between the midstream flow channel and the downstream flow channel, and a rotation adjusting valve is arranged in the flow adjusting cavity. The invention can stably spray paint, not only can rapidly open and close, prevent paint waste and protect environment, but also has convenient flow adjustment and cleaning, and can effectively ensure the spraying effect.
Description
Technical Field
The invention relates to a magnesium alloy nozzle, in particular to a paint nozzle.
Background
The die casting technology is to utilize high pressure to press metal liquid into a die cavity of a die, and the metal liquid is cooled and solidified under the action of pressure to form a casting. The die casting process can manufacture metal parts with complex shapes, clear outlines and thin-wall deep cavities, and the utilization rate of materials is high. The spraying is an important link in the die casting process, can effectively avoid the die casting piece from being welded with the die casting die, reduces friction resistance when the die casting piece is ejected, prevents the die from being stuck, and plays a role in cooling; after spraying, the die is required to be air-blown and dried.
Because the magnesium alloy has less crystallization latent heat than aluminum alloy, the solidification time is faster, the die temperature is more sensitive, and the too high or too low temperature of each region of the thin-wall part die can cause quality defects such as product cracks, water lines, cold insulation and the like, and the statistics of researchers is carried out, so that the die-casting spraying time accounts for 25-38% of the non-increment time of the whole die-casting cycle period.
The existing magnesium alloy die-casting spraying equipment has the following problems:
(1) Uneven flow adjustment, which causes inconsistent spraying thickness on the surface of the die;
(2) The flow channel is easy to be blocked and difficult to clean;
(3) Uneven atomization and easy drop formation;
(4) The response delay of the flow control mechanism is high, and the opening and closing are not timely;
(5) The spraying and blowing are performed by two independent components, which are more costly and more complex to implement.
Disclosure of Invention
In order to solve the technical problems, the invention provides a paint nozzle.
The technical proposal is as follows:
a paint nozzle, which is characterized in that: the spray nozzle comprises a base body, wherein a coating channel and an atomization channel are arranged in the base body, inlets of the coating channel and the atomization channel are positioned on the same side face of the base body, the atomization channel linearly penetrates through the base body, a coating channel interface is arranged in the middle of the atomization channel, an outlet of the coating channel is communicated with the atomization channel through the coating channel interface, a spray nozzle adjusting nozzle is further arranged on the base body, and an outlet of the atomization channel is communicated with the spray nozzle adjusting nozzle inlet;
the spray width adjusting nozzle is screwed at the outlet of the atomizing channel and is provided with a spray through hole communicated with the atomizing channel;
the coating channel comprises an upstream flow channel, a midstream flow channel and a downstream flow channel which are sequentially communicated along the flow direction, a blocking cavity is arranged between the upstream flow channel and the midstream flow channel, and an air pressure blocking piece is arranged in the blocking cavity;
and a flow regulating cavity is arranged between the midstream flow passage and the downstream flow passage, and a rotary regulating valve is arranged in the flow regulating cavity.
The effect of this scheme is: the paint channel is used for inputting paint, the atomization channel is used for inputting air and atomizing the paint and then spraying the paint from the nozzle for paint spraying; the air pressure blocking piece is arranged between the upstream flow channel and the midstream flow channel, so that the nozzle can be rapidly opened and closed, and the waste of spraying materials and environmental pollution are prevented; and a rotary regulating valve is arranged between the midstream flow passage and the downstream flow passage, so that the flow of the coating channel can be regulated according to different product requirements.
As a preferred scheme, the atomization channel comprises a straight flow hole, a shrinkage hole and an atomization hole which are sequentially connected, an outlet of the straight flow hole is connected with an inlet of the shrinkage hole, an outlet of the shrinkage hole is connected with an inlet of the atomization hole, the apertures of the straight flow hole and the atomization hole are larger than those of the shrinkage hole, and the aperture of the atomization hole is larger than that of the straight flow hole;
the bottom of the atomizing hole at the inlet end of the atomizing hole is provided with a shrinkage flow extension pipe around the shrinkage flow hole, the inner diameter of the shrinkage flow extension pipe is consistent with that of the shrinkage flow hole, the inner cavity of the shrinkage flow extension pipe is communicated with the inner cavity of the shrinkage flow hole, a diffusion cavity is formed between the outer wall of the shrinkage flow extension pipe and the inner wall of the atomizing hole, the cavity wall of the diffusion cavity is provided with a coating channel interface, and the coating channel interface is communicated with the outlet of the downstream flow channel.
The effect of this scheme is: the atomization channel is used for atomizing the paint, so that the paint is sprayed more uniformly; the coating channel interface is arranged on the side wall of the diffusion cavity of the atomization hole, so that the coating can be filled in the diffusion cavity uniformly; the high-speed air flow after the shrinkage hole is flushed out of the shrinkage extension pipe, so that the diffusion cavity can form a negative pressure state, and the paint in the diffusion cavity can be flushed out of the atomization channel at a high speed under the guidance of the rapid air flow.
Preferably, the outlet end of the upstream flow channel is positioned on the side wall of the blocking cavity, and the inlet end of the midstream flow channel is positioned at the bottom of the blocking cavity;
a hollow abutting platform is arranged at the bottom of the blocking cavity and surrounds the inlet end of the midstream flow channel, the inner cavity of the hollow abutting platform is communicated with the blocking cavity and the midstream flow channel, and a feeding channel is formed between the outer wall of the hollow abutting platform and the side wall of the blocking cavity;
the air pressure blocking piece is a blocking diaphragm, the edge of the blocking diaphragm is abutted against the inner side wall of the blocking cavity, the inner end face of the blocking diaphragm is abutted against the hollow abutting table, and the blocking diaphragm isolates the inner cavity of the hollow abutting table from the feeding channel.
The effect of this scheme is: the blocking cavity is positioned in the paint flow channel, the blocking diaphragm is arranged in the blocking cavity, the blocking diaphragm state can be changed through air pressure, the blocking and opening of the paint flow channel can be rapidly realized, and the waste of spraying materials and environmental pollution are prevented.
As a preferable scheme, the flow regulating cavity is in a blind hole shape, a midstream runner interface and a downstream runner interface are respectively arranged on the bottom and the side wall of the blind hole, an outlet of the midstream runner is communicated with the flow regulating cavity through the midstream runner interface, and an inlet of the downstream runner is communicated with the flow regulating cavity through the downstream runner interface;
the rotary regulating valve comprises a cylindrical valve seat, the valve seat falls in the flow regulating cavity, the valve seat coincides with the axial lead of the flow regulating cavity, the outer wall of the valve seat is tightly attached to the inner wall of the flow regulating cavity, a regulating flow passage penetrates through the valve seat, an inlet of the regulating flow passage is in butt joint with a middle stream flow passage interface, an outlet of the regulating flow passage is in butt joint with a downstream flow passage interface, and the valve seat rotates along the axial lead of the flow regulating cavity.
The effect of this scheme is: the adjusting flow channel of the valve seat in the adjusting cavity is communicated with the paint channel, and the size of the interface between the adjusting flow channel and the paint channel is adjusted by rotating the valve seat, so that the purpose of adjusting the paint flow is achieved.
As a preferable scheme, the direct current hole is connected with the shrinkage hole through a first transition hole, the first transition hole is in a shape of a circular table, the large opening end of the first transition hole is communicated with the direct current hole, and the small opening end of the first transition hole is communicated with the shrinkage hole;
the aperture of the large opening end of the first transition hole is equal to the aperture of the straight flow hole, and the aperture of the small opening end of the first transition hole is equal to the aperture of the shrinkage hole;
the inner wall chamfer of the end, far away from the shrinkage flow hole, of the shrinkage flow extension pipe forms a second transition hole, the second transition hole is in a round table shape, the small opening end of the second transition hole is communicated with the shrinkage flow hole, and the large opening end of the second transition hole is opened on the end face of the pipe end of the shrinkage flow extension pipe.
The effect of this scheme is: the first transition hole is in a shape of a circular table and can play a role in guiding and shrinking flow, so that the flow channel of the air flow is gradually reduced, and the air flow rate is increased; the second transition hole is in a shape of a circular table and can play a role in guiding and expanding flow, so that the influence range of the high-speed airflow passing through the shrinkage hole is slightly enlarged, and atomization is facilitated.
As a preferable scheme, the blocking cavity is a stepped hole and comprises a fluid hole close to the midstream runner and a diaphragm hole far away from the midstream runner, the midstream runner and the upstream runner are mutually perpendicular, the midstream runner coincides with a hole core line of the fluid hole, the aperture of the diaphragm hole is larger than that of the fluid hole, the hole wall of the fluid hole is communicated with an outlet of the upstream runner, the hole bottom of the fluid hole is communicated with an inlet of the midstream runner, and the hollow abutting table is positioned in the fluid hole;
the hollow abutting platform is in a circular tube shape, a tube core wire of the hollow abutting platform is overlapped with a hole core wire of the fluid hole, and an annular feeding channel is formed between the outer wall of the hollow abutting platform and the side wall of the blocking cavity;
the blocking diaphragm is cake-shaped, the blocking diaphragm is embedded in the diaphragm hole, the edge of the blocking diaphragm is tightly abutted against the inner wall of the diaphragm hole, and the inner surface of the blocking diaphragm is tightly abutted against the end face of the pipe end of the hollow abutting table.
The effect of this scheme is: the blocking diaphragm is embedded in the diaphragm hole in a cake shape, and the blocking diaphragm is deformed inwards by changing the external pressure born by the blocking diaphragm to isolate the inner cavity of the hollow abutting table from the feeding channel, so that the rapid flow breaking effect is realized; the smooth flow passage can be ensured, rapid flow interruption is facilitated, the annular feeding passage is filled with the coating, and the coating can be rapidly extruded into the inner cavity of the hollow abutting table during flow opening.
As a preferable scheme, a first sealing boss is coaxially arranged on the end face of the valve seat insertion end, the first sealing boss is cylindrical, the radius of the first sealing boss is smaller than that of the valve seat, a first sealing ring is sleeved on the outer ring of the first sealing boss, the first sealing boss simultaneously abuts against the bottom and the side wall of the hole of the flow regulating cavity, and the regulating flow passage passes through the first sealing boss and then is communicated with the midstream flow passage;
the end face of the outer end of the valve seat is coaxially provided with a second sealing boss, the second sealing boss is cylindrical, the radius of the second sealing boss is smaller than that of the valve seat, the outer ring of the second sealing boss is sleeved with a second sealing ring, and the second sealing ring is tightly attached to the side wall of the flow regulating cavity;
a locking cover is sleeved outside the second sealing boss in a circumferential direction, the locking cover is connected with the seat body through a bolt, and the second sealing ring is positioned between the inner surface of the locking cover and the outer end face of the valve seat;
the second sealing boss extends outwards axially to form an adjusting column, the radius of the adjusting column is smaller than that of the second sealing boss, the locking cover is sleeved outside the adjusting column, and an adjusting groove is formed in the outer end face of the adjusting column.
The effect of this scheme is: the arrangement of the first sealing table and the second sealing table can enable the valve seat to be tightly connected with the seat body; the arrangement of the first sealing ring and the second sealing ring can effectively prevent the paint from leaking; the valve seat is locked in the adjusting cavity of the seat body by the locking cover through the bolt, and the disassembly type mounting mode is convenient for cleaning the valve seat and the adjusting cavity; the adjusting groove is convenient for use adjusting screw to rotate the valve seat, changes the size of the butt joint opening of the adjusting runner and the coating channel in the valve seat, and realizes the flow adjustment of the coating.
As a preferable scheme, the inner side surface of the blocking diaphragm is provided with a blocking head corresponding to the inner cavity of the hollow abutting table, and the blocking head is embedded in the inner cavity of the hollow abutting table;
the edge of the blocking diaphragm outwards extends to form a fastening ring, a deformation cavity is formed in the fastening ring, an outwards-protruding compression-resistant head is further arranged at the bottom of the deformation cavity corresponding to the blocking head, and the volume of the compression-resistant head is smaller than that of the blocking head.
The effect of this scheme is: the sealing performance is ensured by the fastening ring, and the deformation cavity formed in the fastening ring can enable the middle part of the blocking diaphragm to be thinner than the thickness of the edge, so that the sealing flow passage is beneficial to deformation; the pressure head can resist the air pressure to a certain extent, prevent to block the excessive deformation in diaphragm bottom, make and block the unable reduction of diaphragm, can't play the blocking effect to influence and block the life of diaphragm.
Preferably, the spray width adjusting nozzle is screwed in the atomization hole. The effect of this scheme is: the spray through holes extend to the atomization holes, play a role in guiding flow shrinkage, and can improve the flow speed of the atomized mixed air flow, so that the atomization effect is better.
As a preferable scheme, a first sealing gasket bayonet is arranged at the inlet of the paint channel, the radius of the first sealing gasket bayonet is larger than the aperture of the paint channel, and a paint sealing ring is arranged in the first sealing gasket bayonet;
the inlet of the atomization channel is provided with a first sealing gasket bayonet, the radius of the first sealing gasket bayonet is larger than that of the direct-current hole, and the first sealing gasket bayonet is internally provided with an atomization sealing ring.
The effect of this scheme is: prevent coating and air leakage, avoid extravagant coating and extravagant environment, guarantee fluidic atmospheric pressure simultaneously, avoid influencing atomization effect.
The beneficial effects are that: the paint nozzle can stably spray paint, can be rapidly opened and closed, prevents paint waste, protects the environment, is convenient to adjust and clean, and can effectively ensure the spraying effect.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic plan view of the present invention;
FIG. 3 is a bottom view of FIG. 2;
FIG. 4 is a cross-sectional view of FIG. 2;
fig. 5 is a schematic structural view of the valve seat 6;
fig. 6 is a schematic structural view of the blocking diaphragm 5;
fig. 7 is a cross-sectional view of fig. 7.
Detailed Description
The invention is further described below with reference to examples and figures.
Examples:
as shown in figures 1-7, the paint nozzle comprises a base body 1, wherein a paint channel and an atomization channel are arranged in the base body 1, inlets of the paint channel and the atomization channel are positioned on the same side face of the base body 1, the atomization channel linearly penetrates through the base body 1, a paint channel interface is arranged in the middle of the atomization channel, an outlet of the paint channel is communicated with the atomization channel through the paint channel interface, a spray width adjusting nozzle 2 is further arranged on the base body 1, and an outlet of the atomization channel is communicated with an inlet of the spray width adjusting nozzle 2.
The coating channel comprises an upstream flow channel a, a middle flow channel c and a downstream flow channel e which are sequentially communicated along the flow direction, a blocking cavity b is arranged between the upstream flow channel a and the middle flow channel c, an air pressure blocking piece is arranged in the blocking cavity b, a flow regulating cavity is arranged between the middle flow channel c and the downstream flow channel e, and a rotary regulating valve is arranged in the flow regulating cavity.
The atomizing channel comprises a direct flow hole o, a shrinkage flow hole p and an atomizing hole q which are sequentially connected, an outlet of the direct flow hole o is connected with an inlet of the shrinkage flow hole p, an outlet of the shrinkage flow hole p is connected with an inlet of the atomizing hole q, the apertures of the direct flow hole o and the atomizing hole q are both larger than those of the shrinkage flow hole p, the aperture of the atomizing hole q is larger than that of the direct flow hole o, the spray width adjusting nozzle 2 is spirally arranged in the atomizing hole q in a threaded manner, and the spray width adjusting nozzle 2 is provided with a spray through hole f communicated with the atomizing hole q.
The bottom of the inlet end of the atomization hole q is provided with a shrinkage flow extension pipe 3 around the shrinkage flow hole p, the inner diameter of the shrinkage flow extension pipe 3 is consistent with the inner diameter of the shrinkage flow hole p, the inner cavity of the shrinkage flow extension pipe 3 is communicated with the inner cavity of the shrinkage flow hole p, a diffusion cavity is formed between the outer wall of the shrinkage flow extension pipe 3 and the inner wall of the atomization hole q, the cavity wall of the diffusion cavity is provided with a coating channel interface, and the coating channel interface is communicated with the outlet of the downstream flow channel e.
The straight flow hole o is connected with the shrinkage flow hole p through a first transition hole x, the first transition hole x is in a circular truncated cone shape, the big mouth end of the first transition hole x is communicated with the straight flow hole o, the small mouth end of the first transition hole x is communicated with the shrinkage flow hole p, the aperture of the big mouth end of the first transition hole x is equal to that of the straight flow hole o, the aperture of the small mouth end of the first transition hole x is equal to that of the shrinkage flow hole p, the inner wall chamfer of one end of the shrinkage flow extension pipe 3, far away from the shrinkage flow hole p, forms a second transition hole y, the second transition hole y is in a circular truncated cone shape, the small mouth end of the second transition hole is communicated with the shrinkage flow hole p, and the big mouth end of the second transition hole is opened on the end face of the pipe end of the shrinkage flow extension pipe 3.
The outlet end of the upstream runner a is positioned on the side wall of the blocking cavity b, the inlet end of the midstream runner c is positioned at the bottom of the blocking cavity b, a hollow abutting table 4 is arranged at the bottom of the blocking cavity b and surrounds the inlet end of the midstream runner c, an inner cavity of the hollow abutting table 4 is communicated with the blocking cavity b and the midstream runner c, a feeding channel is formed between the outer wall of the hollow abutting table 4 and the side wall of the blocking cavity b, an air pressure blocking piece is a blocking diaphragm 5, the edge of the blocking diaphragm 5 abuts against the inner side wall of the blocking cavity b, the inner end face of the blocking diaphragm 5 abuts against the hollow abutting table 4, and the blocking diaphragm 5 isolates the inner cavity of the hollow abutting table 4 from the feeding channel.
The blocking cavity b is a stepped hole and comprises a fluid hole close to the midstream flow channel c and a diaphragm hole far away from the midstream flow channel c, the midstream flow channel c and the upstream flow channel a are mutually perpendicular, the midstream flow channel c is overlapped with the hole core line of the fluid hole, the aperture of the diaphragm hole is larger than that of the fluid hole, the hole wall of the fluid hole is communicated with the outlet of the upstream flow channel a, the hole bottom of the fluid hole is communicated with the inlet of the midstream flow channel c, the hollow abutting table 4 is positioned in the fluid hole, the hollow abutting table 4 is in a circular tube shape, the core line of the hollow abutting table coincides with the hole core line of the fluid hole, an annular feeding channel is formed between the outer wall of the hollow abutting table 4 and the side wall of the blocking cavity b, the blocking diaphragm 5 is in a cake shape, the blocking diaphragm 5 is embedded in the diaphragm hole, the edge of the blocking diaphragm 5 abuts against the inner wall of the diaphragm hole, and the inner surface of the blocking diaphragm 5 abuts against the end face of the pipe end of the hollow abutting table 4.
For better realization quick blocking to guarantee to block the life of diaphragm 5, block the inner side surface of diaphragm 5 and correspond hollow butt platform 4's inner chamber and be equipped with blocking head 51, block head 51 inlay and establish in hollow butt platform 4's inner chamber, block the outside extension of edge of diaphragm 5 and form the retainer plate, form the deformation chamber in the retainer plate, the bottom in deformation chamber still is equipped with the resistance to compression head 52 of outside arch corresponding to blocking head 51, resistance to compression head 52 volume is less than blocking head 51.
The flow regulating cavity is in a blind hole shape, a midstream runner interface and a downstream runner interface are respectively arranged on the bottom and the side wall of the hole, an outlet of the midstream runner c is communicated with the flow regulating cavity through the midstream runner interface, an inlet of the downstream runner e is communicated with the flow regulating cavity through the downstream runner interface, the rotary regulating valve comprises a cylindrical valve seat 6, the valve seat 6 falls in the flow regulating cavity, the valve seat 6 coincides with the axial lead of the flow regulating cavity, the outer wall of the valve seat 6 is tightly attached to the inner wall of the flow regulating cavity, a regulating runner d penetrates through the valve seat 6, an inlet of the regulating runner d is in butt joint with the midstream runner c interface, an outlet of the regulating runner d is in butt joint with the downstream runner c interface, and the valve seat 6 rotates along the axial lead of the flow regulating cavity.
The end face of the insertion end of the valve seat 6 is coaxially provided with a first sealing boss 61, the first sealing boss 61 is cylindrical, the radius of the first sealing boss 61 is smaller than that of the valve seat 6, the outer ring of the first sealing boss 61 is sleeved with a first sealing ring 7, the first sealing boss 61 simultaneously abuts against the bottom and the side wall of a flow regulating cavity, an adjusting flow passage d penetrates through the first sealing boss 61 and then is communicated with a midstream flow passage c, the end face of the outer end of the valve seat 6 is coaxially provided with a second sealing boss 62, the second sealing boss 62 is cylindrical, the radius of the second sealing boss 62 is smaller than that of the valve seat 6, the outer ring of the second sealing boss 62 is sleeved with a second sealing ring 8, and the second sealing ring 8 is tightly attached to the side wall of the flow regulating cavity.
In addition, in order to be convenient for dismouting clearance and rotate the governing valve, do not influence the spraying process of coating, the outer ring of second seal boss 62 is still overlapped and is equipped with locking lid 9, locking lid 9 passes through bolted connection with pedestal 1, second sealing washer 8 is located between the internal surface of locking lid 9 and the outer end terminal surface of disk seat 6, second seal boss 62 axial outwards extends and forms adjusting column 63, the radius of adjusting column 63 is less than the radius of second seal boss 62, locking lid 9 cover is located outside adjusting column 63, be equipped with adjustment tank i on the outer terminal surface of adjusting column 63, still overlap on adjusting column 63 between locking lid 9 and the second sealing washer 8 and be equipped with blotter 12.
In order to ensure good air tightness of the whole nozzle and ensure air pressure of a coating channel and an atomization channel, a first sealing gasket bayonet is arranged at the inlet of the coating channel, the radius of the first sealing gasket bayonet is larger than the aperture of the coating channel, a coating sealing ring 10 is arranged in the first sealing gasket bayonet, a second sealing gasket bayonet is arranged at the inlet of the atomization channel, the radius of the second sealing gasket bayonet is larger than the radius of a direct current hole o, and an atomization sealing ring 11 is arranged in the second sealing gasket bayonet in a clamping mode.
In the specific implementation, the volume of the whole seat body is also considered, so that the paint channel reasonably bypasses in the seat body 1, and the positions of the blocking cavity b and the flow regulating cavity are reasonably distributed. Therefore, this scheme will block diaphragm 5, coating sealing washer 10 and atomizing sealing washer 11 all set up on the installation face of pedestal 1, make coating import, atomizing gas import, block the gas import and all be in same direction, be convenient for install, simultaneously with adjusting column 63 on the disk seat 6 with nozzle 2 syntropy setting, so that the operator adjusts, because this scheme pedestal 1 integrated into one piece, in order to perfectly bypass the coating passageway, when the manufacturing, pedestal 1 need set up some technology holes, after the coating passes through and makes successfully, can seal the technology hole.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A paint nozzle, characterized in that: the spray-type spraying device comprises a base body (1), wherein a coating channel and an atomization channel are arranged in the base body (1), inlets of the coating channel and the atomization channel are positioned on the same side face of the base body (1), the atomization channel linearly penetrates through the base body (1), a coating channel interface is arranged in the middle of the atomization channel, an outlet of the coating channel is communicated with the atomization channel through the coating channel interface, a spray-type adjusting nozzle (2) is further arranged on the base body (1), and an outlet of the atomization channel is communicated with an inlet of the spray-type adjusting nozzle (2);
the spray width adjusting nozzle (2) is screwed at the outlet of the atomizing channel, and the spray width adjusting nozzle (2) is provided with a spray through hole (f) communicated with the atomizing channel;
the coating channel comprises an upstream flow channel (a), a middle flow channel (c) and a downstream flow channel (e) which are sequentially communicated along the flow direction, a blocking cavity (b) is arranged between the upstream flow channel (a) and the middle flow channel (c), and an air pressure blocking piece is arranged in the blocking cavity (b);
a flow regulating cavity is arranged between the midstream flow passage (c) and the downstream flow passage (e), and a rotary regulating valve is arranged in the flow regulating cavity;
the outlet end of the upstream flow channel (a) is positioned on the side wall of the blocking cavity (b), and the inlet end of the midstream flow channel (c) is positioned at the bottom of the blocking cavity (b);
a hollow abutting table (4) is arranged at the bottom of the blocking cavity (b) around the inlet end of the middle-stream flow channel (c), the inner cavity of the hollow abutting table (4) is communicated with the blocking cavity (b) and the middle-stream flow channel (c), and a feeding channel is formed between the outer wall of the hollow abutting table (4) and the side wall of the blocking cavity (b);
the air pressure blocking piece is a blocking diaphragm (5), the edge of the blocking diaphragm (5) is abutted against the inner side wall of the blocking cavity (b), the inner end surface of the blocking diaphragm (5) is abutted against the hollow abutting table (4), and the blocking diaphragm (5) isolates the inner cavity of the hollow abutting table (4) from the feeding channel;
the blocking cavity (b) is a stepped hole and comprises a fluid hole close to the midstream runner (c) and a diaphragm hole far away from the midstream runner (c), the midstream runner (c) and the upstream runner (a) are mutually perpendicular, the midstream runner (c) is overlapped with a hole core line of the fluid hole, the aperture of the diaphragm hole is larger than that of the fluid hole, the hole wall of the fluid hole is communicated with the outlet of the upstream runner (a), the bottom of the fluid hole is communicated with the inlet of the midstream runner (c), and the hollow abutting table (4) is positioned in the fluid hole;
the hollow abutting platform (4) is in a circular tube shape, a tube core wire of the hollow abutting platform is overlapped with a hole core wire of the fluid hole, and an annular feeding channel is formed between the outer wall of the hollow abutting platform (4) and the side wall of the blocking cavity (b);
the blocking diaphragm (5) is cake-shaped, the blocking diaphragm (5) is embedded in the diaphragm hole, the edge of the blocking diaphragm (5) is tightly abutted against the inner wall of the diaphragm hole, and the inner surface of the blocking diaphragm (5) is tightly abutted against the end face of the pipe end of the hollow abutting table (4);
the atomization channel comprises a direct flow hole (o), a shrinkage hole (p) and an atomization hole (q) which are sequentially connected, wherein an outlet of the direct flow hole (o) is connected with an inlet of the shrinkage hole (p), an outlet of the shrinkage hole (p) is connected with an inlet of the atomization hole (q), the apertures of the direct flow hole (o) and the atomization hole (q) are larger than the aperture of the shrinkage hole (p), and the aperture of the atomization hole (q) is larger than the aperture of the direct flow hole (o);
the bottom of the inlet end of the atomization hole (q) is provided with a shrinkage flow extension pipe (3) surrounding the shrinkage flow hole (p), the inner diameter of the shrinkage flow extension pipe (3) is consistent with that of the shrinkage flow hole (p), the inner cavity of the shrinkage flow extension pipe (3) is communicated with the inner cavity of the shrinkage flow hole (p), a diffusion cavity is formed between the outer wall of the shrinkage flow extension pipe (3) and the inner wall of the atomization hole (q), the cavity wall of the diffusion cavity is provided with a paint channel interface, and the paint channel interface is communicated with the outlet of the downstream flow channel (e).
2. A paint nozzle as claimed in claim 1, wherein: the flow regulating cavity is in a blind hole shape, a midstream flow passage interface and a downstream flow passage interface are respectively arranged on the bottom and the side wall of the flow regulating cavity, the outlet of the midstream flow passage (c) is communicated with the flow regulating cavity through the midstream flow passage interface, and the inlet of the downstream flow passage (e) is communicated with the flow regulating cavity through the downstream flow passage interface;
the rotary regulating valve comprises a cylindrical valve seat (6), the valve seat (6) falls in the flow regulating cavity, the valve seat (6) is coincident with the axial lead of the flow regulating cavity, the outer wall of the valve seat (6) is tightly attached to the inner wall of the flow regulating cavity, an adjusting flow passage (d) penetrates through the valve seat (6), an inlet of the adjusting flow passage (d) is in butt joint with an interface of the midstream flow passage (c), an outlet of the adjusting flow passage (d) is in butt joint with an interface of the downstream flow passage (c), and the valve seat (6) rotates along the axial lead of the flow regulating cavity.
3. A paint nozzle as claimed in claim 1, wherein: the direct current hole (o) is connected with the shrinkage hole (p) through a first transition hole (x), the first transition hole (x) is in a shape of a circular table, the large opening end of the first transition hole (x) is communicated with the direct current hole (o), and the small opening end of the first transition hole (x) is communicated with the shrinkage hole (p);
the aperture of the large opening end of the first transition hole (x) is equal to the aperture of the direct current hole (o), and the aperture of the small opening end of the first transition hole (x) is equal to the aperture of the shrinkage hole (p);
the inner wall chamfer of one end of the shrinkage flow extension pipe (3) far away from the shrinkage flow hole (p) forms a second transition hole (y), the second transition hole (y) is in a round table shape, the small opening end of the second transition hole is communicated with the shrinkage flow hole (p), and the large opening end of the second transition hole is opened on the end face of the pipe end of the shrinkage flow extension pipe (3).
4. A paint nozzle as claimed in claim 2, wherein: the end face of the insertion end of the valve seat (6) is coaxially provided with a first sealing boss (61), the first sealing boss (61) is cylindrical, the radius of the first sealing boss (61) is smaller than that of the valve seat (6), a first sealing ring (7) is sleeved on the outer ring of the first sealing boss (61), the first sealing boss (61) simultaneously abuts against the bottom and the side wall of the flow regulating cavity, and the regulating flow passage (d) is communicated with the midstream flow passage (c) after passing through the first sealing boss (61);
a second sealing boss (62) is coaxially arranged on the end face of the outer end of the valve seat (6), the second sealing boss (62) is cylindrical, the radius of the second sealing boss (62) is smaller than that of the valve seat (6), a second sealing ring (8) is sleeved on the outer ring of the second sealing boss (62), and the second sealing ring (8) is tightly attached to the side wall of the flow regulating cavity;
the second sealing boss (62) is also sleeved with a locking cover (9) in a circumferential direction, the locking cover (9) is connected with the seat body (1) through a bolt, and the second sealing ring (8) is positioned between the inner surface of the locking cover (9) and the outer end face of the valve seat (6);
the second sealing boss (62) axially extends outwards to form an adjusting column (63), the radius of the adjusting column (63) is smaller than that of the second sealing boss (62), the locking cover (9) is sleeved outside the adjusting column (63), and an adjusting groove (i) is formed in the outer end face of the adjusting column (63).
5. A paint nozzle as claimed in claim 1, wherein: a blocking head (51) is arranged on the inner side surface of the blocking diaphragm (5) corresponding to the inner cavity of the hollow abutting table (4), and the blocking head (51) is embedded in the inner cavity of the hollow abutting table (4);
the edge of the blocking diaphragm (5) extends outwards to form a fastening ring, a deformation cavity is formed in the fastening ring, an outwards-protruding compression head (52) is further arranged at the bottom of the deformation cavity corresponding to the blocking head (51), and the volume of the compression head (52) is smaller than that of the blocking head (51).
6. A paint nozzle as claimed in claim 1, wherein: the spray width adjusting nozzle (2) is screwed in the atomizing hole (q).
7. A paint nozzle as claimed in claim 1, wherein: a first sealing gasket bayonet is arranged at the inlet of the paint channel, the radius of the first sealing gasket bayonet is larger than the aperture of the paint channel, and a paint sealing ring (10) is arranged in the first sealing gasket bayonet;
the inlet of the atomization channel is provided with a first sealing gasket bayonet, the radius of the first sealing gasket bayonet is larger than that of the straight flow hole (o), and an atomization sealing ring (11) is clamped in the first sealing gasket bayonet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811645884.0A CN109513531B (en) | 2018-12-29 | 2018-12-29 | Paint nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811645884.0A CN109513531B (en) | 2018-12-29 | 2018-12-29 | Paint nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109513531A CN109513531A (en) | 2019-03-26 |
| CN109513531B true CN109513531B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811645884.0A Active CN109513531B (en) | 2018-12-29 | 2018-12-29 | Paint nozzle |
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| Country | Link |
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| CN (1) | CN109513531B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751290B (en) * | 2020-06-03 | 2022-09-02 | 中国石油化工股份有限公司 | Fat instrument is annotated to valve |
| CN112317155A (en) * | 2020-09-18 | 2021-02-05 | 国网河南省电力公司信阳供电公司 | Telegraph pole number spraying device |
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|---|---|---|---|---|
| JP2000107651A (en) * | 1998-10-02 | 2000-04-18 | Ikeuchi:Kk | Two-fluid nozzle |
| WO2007055370A1 (en) * | 2005-11-14 | 2007-05-18 | Ham-Let Motoyama Japan Ltd. | Fluid control unit, pressure control valve, and pressure control method |
| CN203170475U (en) * | 2013-03-14 | 2013-09-04 | 昆山伟拓压铸机械有限公司 | Adjustable flow atomizer |
| CN204338368U (en) * | 2014-12-19 | 2015-05-20 | 苏州小鹰铸造装备有限公司 | A kind of spray valve head unit |
| CN209631430U (en) * | 2018-12-29 | 2019-11-15 | 重庆博奥镁铝金属制造有限公司 | New coating nozzle |
-
2018
- 2018-12-29 CN CN201811645884.0A patent/CN109513531B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000107651A (en) * | 1998-10-02 | 2000-04-18 | Ikeuchi:Kk | Two-fluid nozzle |
| WO2007055370A1 (en) * | 2005-11-14 | 2007-05-18 | Ham-Let Motoyama Japan Ltd. | Fluid control unit, pressure control valve, and pressure control method |
| CN203170475U (en) * | 2013-03-14 | 2013-09-04 | 昆山伟拓压铸机械有限公司 | Adjustable flow atomizer |
| CN204338368U (en) * | 2014-12-19 | 2015-05-20 | 苏州小鹰铸造装备有限公司 | A kind of spray valve head unit |
| CN209631430U (en) * | 2018-12-29 | 2019-11-15 | 重庆博奥镁铝金属制造有限公司 | New coating nozzle |
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| Publication number | Publication date |
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| CN109513531A (en) | 2019-03-26 |
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