CN117619580A - Electrostatic spraying rotary disc, electrostatic spraying equipment and electrostatic spraying method - Google Patents
Electrostatic spraying rotary disc, electrostatic spraying equipment and electrostatic spraying method Download PDFInfo
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- CN117619580A CN117619580A CN202311641455.7A CN202311641455A CN117619580A CN 117619580 A CN117619580 A CN 117619580A CN 202311641455 A CN202311641455 A CN 202311641455A CN 117619580 A CN117619580 A CN 117619580A
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- 238000007590 electrostatic spraying Methods 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000000889 atomisation Methods 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 17
- 238000009987 spinning Methods 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 17
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 239000003973 paint Substances 0.000 claims description 78
- 238000000576 coating method Methods 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 13
- 230000001154 acute effect Effects 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 238000003763 carbonization Methods 0.000 claims description 10
- 230000001788 irregular Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 11
- 239000002245 particle Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000019771 cognition Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010041 electrostatic spinning Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Electrostatic Spraying Apparatus (AREA)
Abstract
The invention relates to the field of electrostatic spraying, in particular to an electrostatic spraying spin disk, electrostatic spraying equipment and an electrostatic spraying method. Wherein the electrostatic spray spinning disk comprises: the rotary disc main body is made of plastic and is of a horn-shaped structure; a material cavity is arranged above the rotary disc main body, and a disturbance flow line is arranged in the material cavity and surrounds the center of the rotary main body; an annular ring which is made of metal; the rotary disc main body is fixedly arranged on the annular ring; the surface of the annular ring is provided with an impact surface with an inclined angle; the edge of the surface of the annular ring is provided with an evacuation groove; the diversion atomizing cover is fixedly connected with the rotary disc main body; the diversion atomization cover is provided with at least three diversion sheets fixedly connected; when the diversion atomization cover is fixedly arranged on the rotary disc main body, the diversion part is abutted against the rotary disc main body; a discharge hole is formed between the guide vane and the rotary disc main body; the angle level of the discharge hole corresponds to the impact surface.
Description
Technical Field
The invention relates to the field of electrostatic spraying, in particular to an electrostatic spraying spin disk, electrostatic spraying equipment and an electrostatic spraying method.
Background
Electrostatic spraying is a coating technique that uses a high-voltage electrostatic electric field to orient negatively charged paint particles in a direction opposite to the electric field and to adsorb the paint particles on the surface of a workpiece. The method can improve the utilization rate of the paint, reduce the waste of the paint and improve the painting quality.
The electrostatic spraying equipment comprises a spray gun, a feeding system, a rotary disc, a high-voltage power supply and the like. In electrostatic spraying, a spin disk is one of extremely important accessories, and a high-voltage device is arranged in the spin disk in the spraying process, so that paint particles are charged in the process of dispersing paint through centrifugal force generated by high-speed rotation; the rotary disc is driven by a pneumatic motor, and the rotating speed can reach three thousand to ten thousand or more. When the coating is sent to the spray cup of the high-speed electrostatic spinning disk, the coating is formed into extremely fine atomized particles with charges due to the dual actions of centrifugal force and strong electric field, and the atomized particles move to the surface of the workpiece with opposite polarities and are deposited on the surface of the sprayed workpiece, so that a uniform coating film is formed. However, the applicant has found during long-term production work that the existing spinning discs currently have at least the following problems:
1. the whole shape of the existing rotary disc is similar to a horn-shaped structure, when the rotary disc is installed, a horn mouth faces downwards, a material cavity is arranged above the inside, and through holes communicated with the bottom are formed in the periphery of the material cavity; the paint is fed from top to bottom and radially sprayed, and the radially sprayed material is directly sprayed from the through hole in the paint and is in an inclined downward angle; at the moment, the product to be sprayed is hung around the rotary disc, and the equipment drives the rotary disc to move up and down in the spraying process, so that the up and down spraying of the product hung around is completed; the edge of the horn-shaped structure of the rotating disc main body has no other functions, but rather increases the production cost;
2. the existing rotary disc is poor in atomization effect, large-particle paint can exist sometimes, and discharging is uneven. And the problem is not obvious with oil paint; if aqueous, the problem is more pronounced;
3. the whole body of the existing rotary disc is made of metal materials, and the discharge holes on the rotary disc are generally two types, namely a circular hole and a strip-shaped hole; spray-applied coatings include oily and aqueous; the self-drying type water-based paint is only suitable for oily paint, wherein the water-based paint cannot be used as the self-drying type water-based paint, and if the self-drying type water-based paint is used, the water-based paint is quickly carbonized when passing through the rotary disc due to high pressure on the rotary disc, so that the discharge hole is blocked; the oily materials are carbonized, and only the carbonization speed is low, so that the carbonized caking on the surface is usually cleaned once every time the oily materials are used for a period of time or a large amount of organic solvents are adopted for cleaning, and the oily materials are inconvenient to clean, not environment-friendly, time-consuming and labor-consuming and have high labor cost;
4. the existing rotary disc sprays the coating into a ring-shaped line, so that the rotary disc needs to be moved up and down in the spraying process, and the spraying of different positions on the product is realized.
Disclosure of Invention
The object of the present invention is to solve at least part of the above existing problems.
In order to solve the technical problems, the electrostatic spraying spin disk of the invention comprises:
the rotary disc main body is made of plastic and is of a horn-shaped structure, and the horn mouth is positioned at an upward angle; the upper part of the rotary disc main body is provided with a material cavity, and the material cavity is internally provided with at least one turbulence line which surrounds the center of the rotary disc main body and takes an irregular shape;
an annular ring which is made of metal; the rotary disc main body is fixedly arranged on the annular ring; the surface of the annular ring is provided with an impact surface with an inclined angle; the edge of the surface of the annular ring is provided with an evacuation groove;
the diversion atomizing cover is fixedly connected with the rotary disc main body; the guide atomizing cover is provided with at least three guide plates fixedly connected, and the at least three guide plates are radially distributed at the center of the guide atomizing cover; when the diversion atomization cover is fixedly arranged on the rotary disc main body, the diversion part is abutted against the rotary disc main body; a discharge hole is formed between the guide vane and the rotary disc main body; the angle level of the discharge hole corresponds to the impact surface.
As a preferred implementation mode of the electrostatic spraying spinning disk, the center of the spinning disk main body is provided with a pneumatic motor connecting hole penetrating through the upper part and the lower part, and a connecting counter bore is arranged below the spinning disk main body and is communicated with the pneumatic motor connecting hole.
As a preferred embodiment of the electrostatic spray spinning disk of the invention, the electrostatic spray spinning disk comprises a metal conductor, wherein one end of the metal conductor is positioned in the connecting counter bore, and the other end of the metal conductor is connected with the annular ring.
As a preferred embodiment of the electrostatic spraying spinning disk, the connecting counter bore is internally provided with a first screw hole;
the rotary disc main body and the diversion atomization cover are respectively provided with a second screw hole which is positioned at the same axis.
As a preferred embodiment of the electrostatic spray spinning disk of the invention, the annular ring has an acute angle below its edge.
As a preferred embodiment of the electrostatic spray spinning disk according to the invention, a flow guiding fillet is provided between the edge of the annular ring and the acute angle.
The invention relates to electrostatic spraying equipment, at least the electrostatic spraying spin disk in any section.
The electrostatic spraying method adopts the electrostatic spraying rotary disc described in any section, and the electrostatic spraying rotary disc is arranged on electrostatic spraying equipment; placing the product to be sprayed on the periphery of the electrostatic spraying rotary disc; starting the electrostatic spraying equipment, and driving the electrostatic spraying rotary disc to rotate at a high speed by utilizing a pneumatic motor in the electrostatic spraying equipment;
turning over the rotating disc main body with the horn-shaped structure, wherein the horn mouth is upwards arranged;
the paint is sent into a material cavity, and the paint entering the material cavity is firstly evenly spread by a rotating disc rotating at a high speed to finish the first scattering; and the coating is scattered for the second time through irregular disturbance flow lines in the material cavity;
through the plastic rotary disc main body and the diversion atomizing cover, the coating is prevented from carbonization or reduced carbonization in the process of first scattering in the material cavity;
the paint is ejected and thrown out radially from the discharge hole under the rotation of the electrostatic spraying rotating disc through the guide vane between the guide atomizing vane and the electrostatic spraying rotating disc, so that the third scattering is completed;
the paint thrown out of the discharge port is limited to impact the surface of the annular ring through the angles of the diversion atomization cover and the diversion sheet, so that fourth scattering is formed;
the metal conductor is electrically connected with the annular ring, so that only the main part of the annular ring in the whole product is electrified;
the paint is scattered for the fifth time through the escape grooves on the surface of the annular ring.
As a preferred embodiment of the electrostatic spraying method, the horizontal section of the guide vane is arc-shaped, and the guide vane is utilized to play a role in guiding, so that the paint is discharged obliquely, and the paint is further dispersed.
As a preferred implementation scheme of the electrostatic spraying method, the design of the flow guiding fillets is utilized to enable the positions of the flow guiding fillets to form a negative pressure area, and the negative pressure paint is pulled downwards to change the spraying direction of the paint so as to enable the paint to be sprayed downwards in an inclined manner; and the paint is scattered for the fifth time by utilizing the surge flow principle;
meanwhile, the acute angle below the edge of the annular ring is utilized, and the acute angle of the edge of the annular ring is utilized to strengthen the charge potential of the position, so that the paint is ionized more fully at the position, namely the paint is charged with the strongest potential only at the tail end of atomization, and the carbonization process of the paint on the surface of the rotary disc is further reduced.
Advantageous effects
The invention has the following innovative advantages:
the electrostatic spraying rotary disc, the electrostatic spraying equipment and the electrostatic spraying method structurally comprise three large parts, namely a rotary disc main body, an annular ring and a diversion atomization cover, wherein the surface of the annular ring at the edge position is an inclined plane, but the surface of the annular ring can play a role in scattering paint, so that the electrostatic spraying rotary disc, the electrostatic spraying equipment and the electrostatic spraying method bring about great practicability on one hand, and break the traditional cognition of the industry on the design thinking on the other hand; and solves the problem that the edge of the existing rotating disc has no practical effect.
The invention relates to an electrostatic spraying rotary disc, electrostatic spraying equipment and an electrostatic spraying method, wherein a rotary disc main body and a diversion atomization cover are made of plastic materials, and an annular ring is made of metal materials, so that the paint is in a weak charge area in the process of a material cavity, and charged load is in the peripheral annular ring, so that the paint cannot be carbonized and agglomerated (or is carbonized only in a very small amount) in the material cavity; compared with the existing product, the rotation in the existing product starts carbonization and agglomeration when the coating is in use in the material cavity; solves the problems that the prior product is easy to carbonize the paint and the discharge hole is easy to be blocked (especially the charge of the prior product at the corner position of the hole is in strong potential, the caking is more obvious, and the invention can overcome the problems).
The horizontal section of the guide vane is arc-shaped, so that the effect of scattering the paint is further improved.
According to the electrostatic spraying rotary disc, the electrostatic spraying equipment and the electrostatic spraying method, the paint is scattered for many times by different forms through different designs of all parts, no matter the product or the equipment or the method, the scattering effect of the paint is greatly improved, and the problem that the existing paint scattering effect is poor is solved.
According to the electrostatic spraying rotating disc, the electrostatic spraying equipment and the electrostatic spraying method, no matter the product or the equipment or the method, the edge of the circular ring can generate negative pressure when the circular ring is used due to the design of the diversion round angle, the paint is downwards drained by the negative pressure, the paint is further scattered, the sprayed paint is changed into one surface from one line, the spraying coverage area is enlarged, and the defects in the prior art are overcome.
Drawings
FIG. 1 is a partial cross-sectional view of a spin disk body according to the present invention;
FIG. 2 is a bottom view of the deflector atomization cap of the present invention;
FIG. 3 is a side view of the deflector atomizing cap of the present invention;
FIG. 4 is a schematic view of the overall structure of the present invention;
fig. 5 is a partial enlarged view of the area "a" in fig. 1.
In the figure: 1. the rotary disc type hydraulic pump comprises a rotary disc main body, a material cavity, a disturbance flow line, an annular ring, an impact surface, an evacuation groove, a diversion atomizing cover, a diversion sheet, a discharge hole, a pneumatic motor connecting hole, a connecting counter bore, a metal conductor, a first screw hole, a second screw hole, an acute angle and a diversion fillet, wherein the material cavity, the disturbance flow line, the annular ring, the impact surface, the evacuation groove, the diversion atomizing cover, the diversion sheet, the discharge hole, the pneumatic motor connecting hole, the connection counter bore, the metal conductor, the first screw hole, the second screw hole, the acute angle and the diversion fillet are arranged.
Detailed Description
In order to make the objects, technical solutions and advantages of the technical solutions of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the specific embodiments of the present disclosure.
Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present disclosure.
All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Example 1
The electrostatic spray spin disk of the present invention, see fig. 1-5, comprises: a spin disk main body 1, see fig. 1, wherein the spin disk main body 1 is made of plastic material and has a horn-shaped structure, and a horn mouth is positioned at an upward angle; referring to fig. 1 and 4, a material cavity 2 is arranged above the spin disk main body 1, and at least one turbulence line 3 is arranged in the material cavity 2, surrounds the center of the spin disk main body, and is irregularly shaped;
referring to fig. 2 and 3, the ring comprises an annular ring 4, wherein the annular ring 4 is made of metal; the rotary disc main body 1 is fixedly arranged on the annular ring 4; as shown in fig. 1, 4 and 5, the surface of the annular ring 4 has an impact surface 5 with an inclined angle; the edge of the surface of the annular ring 4 is provided with an evacuation groove 6; the plurality of evacuation grooves 6 are uniformly distributed on the surface of the annular ring 4 and are radially distributed along the center of the rotary disc main body 1;
a guiding atomization cap 7, see fig. 4, wherein the guiding atomization cap 7 is fixedly connected with the rotating disc main body 1, see fig. 2, and fig. 2 is a bottom view of the guiding atomization cap 7; the diversion atomization cover 7 is provided with at least three diversion sheets 8 which are fixedly connected, and the at least three diversion sheets 8 are radially distributed at the center of the diversion atomization cover 7; as shown in fig. 4, when the diversion atomizing cover 7 is fixedly installed on the spin disk main body 1, the diversion point abuts against the spin disk main body 1; as shown in fig. 3, a discharge port 9 is formed between the deflector 8 and the dish body 1; referring to fig. 4, the angle level of the outlet 9 corresponds to the impact surface 5.
The electrostatic spraying rotary disc consists of three large parts, namely a rotary disc main body 1, an annular ring 4 and a diversion atomization cover 7, wherein the surface of the annular ring 4 at the edge position is an inclined plane, but can play a role in scattering paint, so that on one hand, the electrostatic spraying rotary disc has extremely high practicability, and on the other hand, the traditional cognition of the industry is broken for design thinking; and solves the problem that the edge of the existing rotating disc has no practical effect.
Wherein the rotary disc main body 1 and the diversion atomization cover 7 are made of plastic materials, and the annular ring 4 is made of metal materials, so that the paint is in a weak charge area in the process of the material cavity 2, and the charged load is on the peripheral annular ring 4, so that the paint cannot be carbonized and agglomerated (or is carbonized only in a very small amount) when in the material cavity 2; compared with the existing product, the rotation in the existing product starts carbonization and agglomeration when the coating is in use in the material cavity; the invention solves the problems that the existing product is easy to carbonize the paint and the discharge hole is easy to be blocked (especially the charge of the existing product at the corner position of the hole is in strong potential, the caking is more obvious, and the invention can overcome the problems).
Referring to fig. 2, the horizontal cross section of the deflector 8 is curved as described above, further improving the effect of scattering the paint.
Referring to fig. 1, the center of the rotary disk body 1 is provided with a pneumatic motor connecting hole 10 penetrating up and down, and a connecting counter bore 11 is arranged below the rotary disk body 1, and the connecting counter bore 11 is communicated with the pneumatic motor connecting hole 10.
Referring to fig. 1 and 4, the connecting counterbore 11 has a first screw hole 13 therein; the rotary disc main body 1 and the diversion atomization cover 7 are respectively provided with a second screw hole 14 which is positioned at the same axle center.
Referring to fig. 1 and 4, the metal conductor 12 further includes a metal conductor 12, one end of the metal conductor 12 is located in the connecting counter bore 11, and the other end is connected to the annular ring 4. Because the electrostatic spraying rotary disc is installed on electrostatic spraying equipment when the electrostatic spraying rotary disc is used, the installation position of the electrostatic spraying rotary disc is installed on the shaft lever of the pneumatic motor, the shaft lever is electrified, the shaft lever is installed at the position of the pneumatic motor connecting hole 10 of the rotary disc main body 1, and a nut is installed at the end part and is just pressed on the metal conductor 12 in the connecting counter bore 11, so that the external power supply can be electrically connected with the annular ring 4.
Further, referring to fig. 5, the annular ring 4 has an acute angle 15 below its edge.
Further, referring to fig. 5, a flow guiding fillet 16 is provided between the edge of the annular ring 4 and the acute angle 15.
Example 2
The electrostatic spraying equipment is characterized in that the whole electrostatic spraying equipment is an existing conventional equipment, the equipment is the prior art and is irrelevant to the technical scheme of the invention, and parts irrelevant to the scheme are not repeated here; the core scheme is that the electrostatic spraying spin disk in the embodiment 1 is arranged in electrostatic spraying equipment to replace the old spin disk in the prior art.
Example 3
An electrostatic spraying method, the implementation of the method adopts the electrostatic spraying spin disk of the embodiment 1, and the electrostatic spraying spin disk is arranged on electrostatic spraying equipment; or directly adopting the electrostatic spraying equipment of the embodiment 2, and before spraying, placing the product to be sprayed on the periphery of the electrostatic spraying spin disk; starting the electrostatic spraying equipment, and driving the electrostatic spraying rotary disc to rotate at a high speed by utilizing a pneumatic motor in the electrostatic spraying equipment;
turning over the rotary disc main body 1 with the horn-shaped structure, wherein the horn mouth is upwards arranged;
the paint is sent into the material cavity 2, and the paint entering the material cavity 2 is firstly evenly spread by a rotating disc rotating at a high speed to finish the first scattering; and the coating is scattered for the second time through irregular burbling 3 in the material cavity 2;
the plastic rotary disc main body 1 and the diversion atomization cover 7 prevent or reduce carbonization in the process of first scattering of the coating in the material cavity 2;
the paint is ejected and thrown out radially from the discharge hole 9 under the rotation of the electrostatic spraying rotating disc through the guide vane 8 between the guide vane and the electrostatic spraying rotating disc, so that the third scattering is completed;
the paint thrown out of the discharge port 9 is limited to impact the surface of the annular ring 4 through the angles of the diversion atomizing cover 7 and the diversion sheet 8, so that the fourth scattering is formed;
the metal conductor 12 is electrically connected with the annular ring 4, so that only the annular ring 4 in the whole electrostatic spraying rotating disc is electrified;
the paint is scattered for the fifth time through the escape grooves 6 on the surface of the annular ring 4.
Further, the horizontal section of the guide vane 8 is arranged into an arc shape, the guide vane 8 is utilized to play a role in guiding, so that the paint is obliquely discharged, and the paint is further scattered.
Further, by utilizing the design of the flow guiding fillets 16, the positions of the flow guiding fillets 16 form a negative pressure area, and the negative pressure paint is pulled downwards to change the spraying direction of the paint, so that the paint is sprayed downwards in an inclined way; and the paint is scattered for the fifth time by utilizing the surge flow principle; on the other hand, since the paint is pulled downward, the paint pulled downward by the negative pressure is sprayed centering on the spin disk, and referring to fig. 4, the dotted arrow in fig. 4 shows the route of the paint, and when sprayed, the sprayed paint can cover a certain range of area, so that a certain range can be covered without moving the spin disk up and down; at the moment, the spraying effect is better by matching with the up-and-down moving rotary disc main body 1.
On the one hand, the horn mouth of the rotary disc is upward, but the spray is downward, so that the conventional cognition of the same line is overturned;
meanwhile, the acute angle 15 below the edge of the annular ring 4 is utilized, and the acute angle 15 of the edge of the annular ring 4 is utilized to enhance the charge potential at the position, so that the paint is ionized more fully at the position, namely the paint is charged with the strongest potential only at the tail end of atomization, and the carbonization process of the paint on the surface of the rotary disc is further reduced.
Further, the surfaces of the rotating disc main body 1, the annular ring 4 and the diversion atomizing cover 7 can be respectively coated with a Teflon (PTFE) coating or a ceramic coating in the production link.
According to the embodiment 1 to the embodiment 3 of the invention, no matter the product or the equipment or the method, the coating is scattered for a plurality of times by different modes through different designs of each part, so that the scattering effect of the coating is greatly improved, and the problem of poor scattering effect of the coating at present is solved.
In the embodiments 1 to 3 of the present invention, no matter the product, the equipment or the method, the design of the diversion fillet 16 is performed on the edge of the annular ring 4, so that the edge of the diversion fillet can generate negative pressure when in use, the paint is downwards drained by the negative pressure, the paint is further scattered, the sprayed paint is changed into one surface from one line, the coverage of spraying is enlarged, and the defects in the prior art are overcome.
The terms first, second and the like in the description and in the claims, are not used for any order, quantity or importance, but are used for distinguishing between different elements. Likewise, the terms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
The preferred embodiments of the present invention described above are not intended to limit the present invention, and the scope of the present invention is defined by the appended claims, and other embodiments can be obtained from the drawings without inventive faculty to those skilled in the art, and any modifications based on the claims of the present invention are also the scope of the present invention.
Claims (10)
1. Electrostatic spray spinning disk, characterized in that it comprises:
the rotary disc main body is made of plastic and is of a horn-shaped structure, and the horn mouth is positioned at an upward angle; the upper part of the rotary disc main body is provided with a material cavity, and the material cavity is internally provided with at least one turbulence line which surrounds the center of the rotary disc main body and takes an irregular shape;
an annular ring which is made of metal; the rotary disc main body is fixedly arranged on the annular ring; the surface of the annular ring is provided with an impact surface with an inclined angle; the edge of the surface of the annular ring is provided with an evacuation groove;
the diversion atomizing cover is fixedly connected with the rotary disc main body; the guide atomizing cover is provided with at least three guide plates fixedly connected, and the at least three guide plates are radially distributed at the center of the guide atomizing cover; when the diversion atomization cover is fixedly arranged on the rotary disc main body, the diversion part is abutted against the rotary disc main body; a discharge hole is formed between the guide vane and the rotary disc main body; the angle level of the discharge hole corresponds to the impact surface.
2. The electrostatic spray spinning disk of claim 1, wherein the center of the spinning disk body has a pneumatic motor connection hole passing through the top and bottom, and the lower side of the spinning disk body has a connection counterbore in communication with the pneumatic motor connection hole.
3. An electrostatic spray spinning disk according to claim 2, comprising a metal conductor having one end located within the connection counterbore and the other end connected to the annular ring.
4. The electrostatic spray spin disk of claim 1, wherein the connecting counterbore has a first threaded bore therein;
the rotary disc main body and the diversion atomization cover are respectively provided with a second screw hole which is positioned at the same axis.
5. An electrostatic spray spinning disk according to claim 1, wherein the annular ring has an acute angle below its rim.
6. An electrostatic spray spinning disk according to claim 1 or 5, wherein there is a flow guiding fillet between the edge of the annular ring and the acute angle.
7. An electrostatic spraying device comprising at least an electrostatic spraying spin-disk according to any one of claims 1 to 6.
8. An electrostatic spraying method characterized in that the electrostatic spraying spin disk according to any one of claims 1 to 6 is used and is mounted on an electrostatic spraying device; placing the product to be sprayed on the periphery of the electrostatic spraying rotary disc; starting the electrostatic spraying equipment, and driving the electrostatic spraying rotary disc to rotate at a high speed by utilizing a pneumatic motor in the electrostatic spraying equipment;
turning over the rotating disc main body with the horn-shaped structure, wherein the horn mouth is upwards arranged;
the paint is sent into a material cavity, and the paint entering the material cavity is firstly evenly spread by a rotating disc rotating at a high speed to finish the first scattering; and the coating is scattered for the second time through irregular disturbance flow lines in the material cavity;
through the plastic rotary disc main body and the diversion atomizing cover, the coating is prevented from carbonization or reduced carbonization in the process of first scattering in the material cavity;
the paint is ejected and thrown out radially from the discharge hole under the rotation of the electrostatic spraying rotating disc through the guide vane between the guide atomizing vane and the electrostatic spraying rotating disc, so that the third scattering is completed;
the paint thrown out of the discharge port is limited to impact the surface of the annular ring through the angles of the diversion atomization cover and the diversion sheet, so that fourth scattering is formed;
the metal conductor is electrically connected with the annular ring, so that only the annular ring in the whole product is electrified;
the paint is scattered for the fifth time through the escape grooves on the surface of the annular ring.
9. The electrostatic spraying method according to claim 8, wherein the horizontal section of the deflector is arranged in an arc shape, and the deflector is used for guiding, so that the paint is discharged obliquely, and the paint is further dispersed.
10. The electrostatic spraying method according to claim 8, wherein the design of the flow guiding fillets is used to form a negative pressure area at the positions of the flow guiding fillets, and the negative pressure paint is pulled downwards to change the spraying direction of the paint so as to spray the paint obliquely downwards; and the paint is scattered for the fifth time by utilizing the surge flow principle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311641455.7A CN117619580A (en) | 2023-12-04 | 2023-12-04 | Electrostatic spraying rotary disc, electrostatic spraying equipment and electrostatic spraying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311641455.7A CN117619580A (en) | 2023-12-04 | 2023-12-04 | Electrostatic spraying rotary disc, electrostatic spraying equipment and electrostatic spraying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117619580A true CN117619580A (en) | 2024-03-01 |
Family
ID=90031783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311641455.7A Pending CN117619580A (en) | 2023-12-04 | 2023-12-04 | Electrostatic spraying rotary disc, electrostatic spraying equipment and electrostatic spraying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117619580A (en) |
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2023
- 2023-12-04 CN CN202311641455.7A patent/CN117619580A/en active Pending
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