CN111359791A - Thick edge reduction purging device and powder electrostatic spraying device - Google Patents
Thick edge reduction purging device and powder electrostatic spraying device Download PDFInfo
- Publication number
- CN111359791A CN111359791A CN201811597096.9A CN201811597096A CN111359791A CN 111359791 A CN111359791 A CN 111359791A CN 201811597096 A CN201811597096 A CN 201811597096A CN 111359791 A CN111359791 A CN 111359791A
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- compressed air
- edge
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- strip
- plate
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- 239000000843 powder Substances 0.000 title claims abstract description 67
- 238000010926 purge Methods 0.000 title claims abstract description 25
- 230000009467 reduction Effects 0.000 title claims abstract description 18
- 238000007590 electrostatic spraying Methods 0.000 title abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 35
- 239000007921 spray Substances 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 3
- 238000009503 electrostatic coating Methods 0.000 claims 1
- 230000005684 electric field Effects 0.000 abstract description 7
- 239000003973 paint Substances 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 85
- 229910000831 Steel Inorganic materials 0.000 description 25
- 239000010959 steel Substances 0.000 description 25
- 229910052782 aluminium Inorganic materials 0.000 description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 18
- 238000007667 floating Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 238000009500 colour coating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 229940098458 powder spray Drugs 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/081—Plant for applying liquids or other fluent materials to objects specially adapted for treating particulate materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/084—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to condition of liquid or other fluent material already sprayed on the target, e.g. coating thickness, weight or pattern
Abstract
The invention discloses a thick edge reduction purging device and a powder electrostatic spraying device. The thick edge reduction purging device is used for the intermittent or continuous powder electrostatic spraying of the plate strip, and comprises: the compressed air nozzle is positioned at an outlet of the spraying range outside the running direction of the sprayed plate strip on the back side of the spraying surface of the sprayed plate strip; the compressed air nozzle sprays air towards the edge of the sprayed plate. The thick edge reduction blowing device is used for the intermittent or continuous powder electrostatic spraying of the plate strip, and the compressed air nozzle is arranged at the back side edge of the spraying surface of the running plate strip, and high-speed compressed air flow is blown out through the compressed air nozzle to take away the powder which is adsorbed on the spraying side of the edge of the plate strip to be sprayed due to high electric field intensity, so that the adhesion amount of the electrostatic spraying powder on the edge parts of two sides of the plate strip is reduced, and the phenomenon that the paint film on the edge of the surface of the spraying side plate after being baked is obviously thickened is reduced.
Description
Technical Field
The invention relates to the field of powder electrostatic spraying, in particular to a thick edge reduction purging device and a powder electrostatic spraying device.
Background
At present, most of color-coated plates in China adopt a mode of coating plates and coils by solvent type liquid paint. The production line for carrying out powder continuous electrostatic spraying on the intermittent steel plate, the aluminum plate or the steel coil and the aluminum coil is less.
For intermittent steel plates and aluminum plates, a plurality of steel plates and aluminum plates with the same length and width need to be stacked in a multilayer manner in order for convenient packaging and transportation of baked color-coated plate finished products after powder spraying, and the number of the steel plates and the aluminum plates reaches hundreds to thousands. The thickness of the stacked multilayer boards is required to be consistent, the thickness of the powder coating sprayed on each board is required to be consistent, otherwise, the thickness of the stacked boards is uneven in the length and width range, the stacked boards cannot be neatly and reasonably packaged uniformly, and the local deformation of the boards can cause disqualification of the sprayed board products due to the uneven height.
Similarly, for steel coils (strips) or aluminum coils (strips), because the number of turns of coils (i.e., the number of layers) wound into a coil (strip) is hundreds to thousands, if the thickness of the powder coating sprayed on the coil (strip) is inconsistent, the constant-width steel coils wound together have uneven thickness within the width range, the coil diameter is inconsistent, and the appearance is unsightly; in addition, the multi-layer plates which are rolled together are tightly wound due to the fact that the plates (strips) bear large tension in the rolling process, and the plates (strips) which are subsequently uncoiled and expanded are deformed in a convex-concave mode due to the fact that steel coils are uneven in a convex-concave mode, so that the multi-layer plates are not allowed to be used as waste.
In the case of the electrostatic powder-sprayed intermittent sheet and the sprayed continuous rolled sheet, since the sheet and the roll have large areas, the sprayer is required to simultaneously spray a large amount of powder toward the sheet surface. This requires the use of large quantities of compressed air for powder spraying. Because most of the spraying devices are basically vertical to the plate surface and the rolling surface, the sprayed compressed air carries the electrostatic powder to be vertically sprayed to the surface of the steel plate. Most of the powder is attached to the surface of the plate roll, and the powder which is not attached to the surface of the plate roll is pressed by compressed air and can horizontally move along the two sides of the width of the surface of the plate strip to the edge of the width of the plate (strip). At the same time, the edge of the sprayed plate surface is sprayed with powder by a sprayer.
The sprayer has high voltage electrostatic field to make the sprayed powder carry electric charge. The plate (belt) to be coated is grounded, so the powder with charge sprayed by the sprayer is equivalent to the positive pole of the power supply, and the plate (belt) to be coated is equivalent to the zero pole. Due to the attraction of the electric field, the powder which is sprayed by the sprayer and carries charges is easily combined with the surface of the sprayed plate (belt) and is adhered to the surface of the plate (belt); and the charged powder adheres more readily to the plate (strip) where the electric field strength is present. Since the electric field is much stronger at the point than at the smooth point for a metal surface, the electric field strength is strongest at the edge of the plate (strip) shaped like a "knife edge" point for the plate (strip) being sprayed. The charge-carrying powder is more likely to collect toward the plate (belt) edges. Therefore, for powder electrostatic spraying, the powder absorbed by the edge of the interrupted steel plate and the edge of the steel coil (strip) is more, so that the paint film at the edge (within 1-2 mm from the edge) of the plate (strip) is obviously thickened after heating and baking, and is much thicker than the surface of the plate.
For the intermittent steel plates and the aluminum plates, hundreds to thousands of steel plates are required to be stacked neatly before packaging and transportation; for steel or aluminum coils, where thousands of layers are wound into a coil, the problem of the coil width being thicker at the edges than in the middle section is prominent! Namely, the multi-layer overlapped intermittent steel plates and aluminum plates are warped at the upper edge part of the width and concave in the middle, and cannot be packaged orderly; for steel coils or aluminum coils, edge raised middle concave parts are also obviously generated in the width direction, so that the coils are seriously deformed! In the color coating industry, the color coating is judged to be waste.
In order to reduce the powder floating out of the edge of the plate strip and reduce the adhesion of the floating powder on the edge of the plate (strip), a porous (pipe) suction device is arranged at the edge of the plate (strip) to be sprayed. As shown in fig. 1 and 2, a plurality of powder suction pipes 101 parallel to each other are arranged in a row at a short distance along the edge of the coated sheet strip 2, perpendicular to the running direction 103 of the coated sheet strip. The plurality of powder suction pipes 101 are inserted into a negative pressure main pipe 102.
There are a number of disadvantages with this arrangement. Firstly, as the caliber of the powder suction pipe cannot be set too large, otherwise, the negative pressure drop, the suction force and the powder suction efficiency are low or the diameter of the main negative pressure pipe needs to be very large, and a large pipeline is not suitable to be arranged in the spray room. The floating range of the powder raised by the plate and the edge curling part is larger and far larger than the caliber of the powder suction pipe, so that most of the floating powder cannot be sucked into the powder suction pipe, namely the powder suction effect and the powder suction efficiency of the powder suction pipe are poor. And secondly, the powder suction pipes are arranged in parallel along the main negative pressure pipe, and the negative pressure generating ports of the main negative pressure pipe can be only arranged at two ends of the main pipe or a plurality of negative pressure generating ports are arranged in a limited manner along the length of the main pipe. The negative pressure at the pipe openings of the powder suction pipes along the length direction of the plate strip is different in size, and the difference is large. The uneven powder suction capability along the length direction of the plate strip can be seriously caused. Moreover, most of the prior continuous coil electrostatic powder spraying production lines enter a spraying room in a state that the strip belt is horizontal, and because the continuously sprayed steel coil or aluminum coil horizontally enters the spraying room, the strip belt cannot be provided with a carrier roller or a lifting device, the strip belt naturally hangs and is not straight in the spraying process in the spraying room; and the strip slightly floats in the running process, and for the powder suction pipe openings arranged in parallel on the main negative pressure pipe, the pipe material is a hard pipe, so that the powder suction pipe openings are difficult to be aligned with the edge part of the suspended strip, and the powder suction efficiency is reduced. Thirdly, the electric field at the edge of the plate (strip) cannot be reduced by the method, and the problem that the paint film at the edge of the plate is obviously thickened can hardly be effectively reduced.
Disclosure of Invention
Based on the background technology, the invention provides a thick edge reduction purging device and a powder electrostatic spraying device. The thick edge reduction purging device is an auxiliary device in the intermittent or continuous electrostatic powder spraying of a plane intermittent steel plate or an aluminum plate or a steel coil or an aluminum coil. The thick edge reduction purging device is used for the continuous powder electrostatic spraying of the plate strip, and the compressed air nozzles are arranged on the back side and the edge of the running plate strip spraying surface, so that high-speed compressed air flow is blown out through the compressed air nozzles, and the powder part which is adsorbed on the edge spraying side of the sprayed plate strip due to the high electric field intensity is taken away, thereby reducing the electrostatic spraying powder attachment amount on the edge parts on two sides of the plate strip, and reducing the phenomenon that the paint film on the edge of the surface of the sprayed side plate after being baked is obviously thickened. The discontinuous steel plate and the aluminum plate can realize the flatness when being stacked and packaged in multiple layers, and the steel coil and the aluminum coil can not deform and not stick up after being curled in multiple circles.
For convenience of description, the invention uses the short term "strip", and the strip refers to a plane interrupted steel plate, an aluminum plate, a steel coil (strip), an aluminum coil (strip) and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a thick edge reduction purging device used in the intermittent or continuous powder electrostatic spraying of a plate strip, which comprises: and the compressed air nozzle is positioned at an outlet of the spraying area outside the running direction of the sprayed plate strip on the back side of the spraying surface of the sprayed plate strip, and the compressed air nozzle sprays air towards the edge of the sprayed plate strip.
Preferably, the compressed air nozzles comprise a set located at one side edge of the strip of board to be sprayed perpendicular to the running direction; or
The compressed air nozzles comprise two groups which are positioned at two side edges of the sprayed board strip which are vertical to the running direction.
Preferably, each group of compressed air nozzles comprises a plurality of compressed air nozzles arranged in parallel along the running direction of the sprayed plate strip, and preferably 1-20 compressed air nozzles.
Preferably, the distance between the air outlet of the compressed air nozzle and the edge of the one side of the sprayed plate strip close to the air outlet is-50-100 mm. Wherein, the air jet is positive when being located at the inner side of one side edge of the sprayed plate strip which is close to the air jet, and is negative when being located at the outer side. Preferably-50 to 0 mm.
Preferably, the perpendicular distance between the air nozzle of the compressed air nozzle and the back side surface of the spraying surface of the sprayed plate strip is 5-200 mm.
Preferably, the air injection direction of the compressed air nozzle forms an angle of-30 degrees to 80 degrees with the vertical direction of the plate surface of the plate to be sprayed.
Preferably, the pressure of a compressed air source of the compressed air nozzle is 0.1-0.8 MPa.
The invention also provides a powder electrostatic spraying device which comprises the thick edge reduction purging device.
Drawings
FIG. 1 is a schematic view of a negative pressure powder suction pipe structure used on two side edges of a plate belt in the prior art.
Fig. 2 is a schematic sectional view of fig. 1 taken along a direction a.
FIG. 3 is a schematic diagram of the construction of the bead trim purge apparatus (horizontally suspended in a natural manner) according to a preferred embodiment of the invention.
FIG. 4 is a schematic cross-sectional view of the board strip, spray nozzle and spray booth in the direction B of FIG. 3.
Description of reference numerals:
101-a powder suction pipe; 102-negative pressure main pipeline; 103-running direction of the sprayed plate belt; 1-a compressed air nozzle; 2-coated plate strip; 3-distance between the compressed air nozzle outlet and the sprayed plate belt; 4-distance of compressed air nozzle at edge of coated plate to edge; 5-the direction of an air nozzle of the compressed air nozzle forms an included angle with the plate surface; 6-the sprayed side of the sprayed sheet.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below in connection with preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
The overall thought of the invention is as follows: the compressed air nozzles are arranged on the opposite sides of the sprayed surfaces of the plates to be sprayed, high-speed compressed air is blown out of the opposite sides of the sprayed surfaces of the plates and strips by the compressed air nozzles, the compressed air can be blown away from the edges of the plates and strips transversely and quickly at the edges of the plates and strips, high-speed airflow is generated at the edges of the plates and strips, negative pressure areas are generated around the high-speed airflow, and the ambient air can gush into the negative pressure areas due to the negative pressure to form moving airflow. The air flow can blow and blow away the residual floating powder attached to the upper edge part of the plate; it can also be explained that the high velocity compressed air flow pulls ambient air and thus disturbs the electrostatic powder adhering near the edges of the painted side panel, and some of the powder is pulled or blown away by the air. The powder thickened at the edge of the sprayed plate strip is reduced, and the thickness of a paint film at the edge of the plate strip after baking is reduced. The problem of thickened paint film at the edge of the plate strip, namely the problem of thick edge, is greatly relieved, the problem of raised edge of an intermittent steel plate which is overlapped by multiple layers is greatly relieved, and the edge warping phenomenon of a multi-layer curled steel coil and an aluminum coil is reduced.
Therefore, the overall scheme provided by the invention is as follows: a thick edge reduction purging device is used for electrostatic spraying of intermittent or continuous powder on a plate strip, and comprises a compressed air nozzle which is positioned at an outlet of a spraying area outside the running direction of the spraying plate strip on the back side of the spraying surface of the spraying plate strip, and the compressed air nozzle sprays air towards the edge of the spraying plate strip.
Wherein the compressed air nozzle is positioned at the edge of the sprayed plate strip perpendicular to the running direction so as to mainly blow away the redundant powder at the edge of the sprayed plate strip.
Preferably, the compressed air nozzles comprise a set located at one side edge of the strip of board to be sprayed perpendicular to the running direction; or the compressed air nozzles comprise two groups of the edges of the two sides of the sprayed plate strip perpendicular to the running direction. That is, the compressed air nozzle may be provided on one side to be matched with other powder removing devices, or may be provided on both sides.
Further preferably, each group of compressed air nozzles comprises a plurality of compressed air nozzles arranged in parallel along the running direction of the sprayed plate strip, and the number of the compressed air nozzles is preferably 1-20. The specific number can be set by those skilled in the art according to the powder removing effect.
Preferably, the distance between the air outlet of the compressed air nozzle and the edge of the one side of the sprayed plate strip close to the air outlet is-50-100 mm. Thus, the air can be effectively sprayed to the edge of the sprayed plate strip. Wherein, the air jet is positive when being located at the inner side of one side edge of the sprayed plate strip which is close to the air jet, and is negative when being located at the outer side.
Preferably, the distance between the air nozzle of the compressed air nozzle and the back side surface of the spraying surface of the sprayed plate strip is 5-200 mm.
Preferably, the air injection direction of the compressed air nozzle forms an angle of-30 degrees to 80 degrees with the vertical direction of the plate surface of the plate to be sprayed. I.e. may or may not be perpendicular. Further, when the air jet direction of the compressed air nozzle is not vertical, the air jet direction of the compressed air nozzle is within an angle of-30 degrees to 80 degrees towards the edge direction of the sprayed sheet strip. Wherein, the blowing from the middle part of the plate strip to the edge is positive, and the blowing from the edge to the middle is negative.
Preferably, the pressure of a compressed air source of the compressed air nozzle is 0.1-0.8 MPa.
Specifically, the present invention provides a preferred embodiment, as shown in fig. 3 and 4, a compressed air nozzle 1 is provided at the back side of the spraying surface 6 of the plate strip to be sprayed at the outlet in the running direction of the plate strip to be sprayed 2 outside the spraying range, and the compressed air nozzle 1 blows air toward the plate strip to be sprayed 2.
As shown in fig. 3 and 4, the compressed air nozzles 1 are located at the edges of the coated board 2 perpendicular to the running direction, including two sets located at both side edges. Each group of compressed air nozzles 1 comprises 3 compressed air nozzles 1 which are arranged in parallel along the running direction of the sprayed sheet strip 2.
As shown in fig. 4, the air outlets of the compressed air nozzles 1 are located inside the edge of the coated sheet strip 2 perpendicular to the running direction and within 100mm from the edge, which is denoted by 4 in fig. 4. In addition, the air outlets of the compressed air nozzles 1 can also be positioned outside the edge of the sprayed sheet strip 2 perpendicular to the running direction, and the effect is better within 50mm from the edge. Therefore, the distance between the air nozzle of the compressed air nozzle 1 and the edge of the sprayed plate strip ranges from-50 mm to 100 mm; negative, i.e. on the outside, positive on the inside.
The vertical distance between the air nozzle of the compressed air nozzle 1 and the back side surface of the spraying surface of the sprayed plate strip 2 is 5-200 mm, and the distance is 3 marked in figure 4.
The air jet direction of the compressed air nozzle 1 forms an angle 5 marked in figure 4 with the vertical direction of the surface of the board 2 to be sprayed, and the angle is within-30 degrees to 80 degrees. As will be readily understood by those skilled in the art, the angle may be 0 ° in which case the compressed air nozzles 1 are directed perpendicular to the surface of the strip 2 to be sprayed. The 5 marked in fig. 4 is 30 °, in this case by spraying air from the middle to the edge of the strip to be sprayed; it will be readily appreciated that this angle is negative when the nozzles are angled to direct gas from the edge of the strip being sprayed towards the centre, and that a negative angle of up to 30 ° is preferred. Preferably, the pressure of a compressed air source of the compressed air nozzle 1 is 0.1-0.8 MPa, and airflow with certain strength is generated.
As is easily understood by those skilled in the art, on the basis of the preferred embodiment, the number, position and the like of each group of compressed air nozzles can be adjusted according to the specific powder removing effect. At the same time, the compressed air pressure, the distance from the edge, the distance from the back, etc. can be adjusted.
In addition, the plate strip can move along the direction perpendicular to the running direction, namely the width direction, simultaneously in the running process, and a position follow-up mechanism can be arranged to ensure that the position of the nozzle and the width position of the plate strip are relatively fixed.
In the preferred embodiment of fig. 3 and 4, the strip to be sprayed is in a horizontal natural suspension manner, and can be vertical, inclined or horizontal, and according to the concept of the invention, the nozzles are correspondingly arranged on the opposite sides of the spraying surface.
The invention also provides a powder electrostatic spraying device on the basis of the above, which comprises the thick edge reduction purging device. The thick edge reduction purging device provided by the invention is arranged in the original electrostatic spray coating device, so that the powder deposition amount of the edge part of a coated plate can be effectively reduced, and the problem of thickening of the edge part of the electrostatic powder spray coating plate is solved.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (10)
1. A webbing trim purge arrangement for use in electrostatic coating of intermittent or continuous web powder, the trim purge arrangement comprising: and the compressed air nozzle is positioned at an outlet of the spraying area outside the running direction of the sprayed plate strip on the back side of the spraying surface of the sprayed plate strip, and the compressed air nozzle sprays air towards the edge of the sprayed plate strip.
2. The webbing trim purge apparatus of claim 1, wherein the compressed air nozzles comprise a set located at one side edge of the sprayed sheet strip perpendicular to the direction of travel; or
The compressed air nozzles comprise two groups which are positioned at two side edges of the sprayed board strip which are vertical to the running direction.
3. The bead trim purge apparatus of claim 2, wherein each set of compressed air nozzles comprises a plurality of compressed air nozzles arranged side-by-side in the direction of travel of the coated strip.
4. The thick edge trim purge apparatus according to claim 3, wherein each group of compressed air nozzles comprises 1-20 compressed air nozzles arranged in parallel along the running direction of the coated plate belt.
5. The thick edge trim reduction purging device according to claim 1, wherein the distance between the air injection port of the compressed air nozzle and the edge of the adjacent sprayed plate strip is-50-100 mm.
6. The thick edge trim reduction purging device according to claim 5, wherein the distance between the air injection port of the compressed air nozzle and the edge of the adjacent sprayed plate strip is-50-0 mm.
7. The thick edge reduction purging device according to claim 1, wherein the perpendicular distance between the air injection port of the compressed air nozzle and the back side surface of the sprayed plate is 5-200 mm.
8. The thick edge trim purge apparatus according to claim 1, wherein the air injection direction of the compressed air nozzle forms an angle of-30 ° to 80 ° with the vertical direction of the coated plate strip surface.
9. The thick edge trim reduction purging device according to claim 1, wherein the compressed air source pressure of the compressed air nozzle is 0.1-0.8 MPa.
10. An electrostatic powder spraying device comprising a bead abatement purge apparatus as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597096.9A CN111359791A (en) | 2018-12-26 | 2018-12-26 | Thick edge reduction purging device and powder electrostatic spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597096.9A CN111359791A (en) | 2018-12-26 | 2018-12-26 | Thick edge reduction purging device and powder electrostatic spraying device |
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| Publication Number | Publication Date |
|---|---|
| CN111359791A true CN111359791A (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811597096.9A Pending CN111359791A (en) | 2018-12-26 | 2018-12-26 | Thick edge reduction purging device and powder electrostatic spraying device |
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| CN (1) | CN111359791A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0194975A (en) * | 1987-10-02 | 1989-04-13 | Fuji Photo Film Co Ltd | Coating method |
| JPH07251099A (en) * | 1994-03-11 | 1995-10-03 | Mazda Motor Corp | Method for electrostatic coating and apparatus therefor |
| JPH09106980A (en) * | 1995-10-11 | 1997-04-22 | Kawasaki Steel Corp | Coating film forming device and method |
| US20040126923A1 (en) * | 2002-12-31 | 2004-07-01 | Micron Technology, Inc. | Non-chemical, non-optical edge bead removal process |
| JP2011036847A (en) * | 2009-07-13 | 2011-02-24 | Mitsubishi Rayon Co Ltd | Film-forming method and spin coater |
| CN107249760A (en) * | 2015-03-25 | 2017-10-13 | 株式会社斯库林集团 | Coating method |
| CN108580202A (en) * | 2018-07-03 | 2018-09-28 | 力信（江苏）能源科技有限责任公司 | A kind of lithium ion battery blowing device |
| CN209423882U (en) * | 2018-12-26 | 2019-09-24 | 中冶京诚工程技术有限公司 | Webbing cuts down blow device and electrostatic powder spraying device |
-
2018
- 2018-12-26 CN CN201811597096.9A patent/CN111359791A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0194975A (en) * | 1987-10-02 | 1989-04-13 | Fuji Photo Film Co Ltd | Coating method |
| JPH07251099A (en) * | 1994-03-11 | 1995-10-03 | Mazda Motor Corp | Method for electrostatic coating and apparatus therefor |
| JPH09106980A (en) * | 1995-10-11 | 1997-04-22 | Kawasaki Steel Corp | Coating film forming device and method |
| US20040126923A1 (en) * | 2002-12-31 | 2004-07-01 | Micron Technology, Inc. | Non-chemical, non-optical edge bead removal process |
| JP2011036847A (en) * | 2009-07-13 | 2011-02-24 | Mitsubishi Rayon Co Ltd | Film-forming method and spin coater |
| CN107249760A (en) * | 2015-03-25 | 2017-10-13 | 株式会社斯库林集团 | Coating method |
| CN108580202A (en) * | 2018-07-03 | 2018-09-28 | 力信（江苏）能源科技有限责任公司 | A kind of lithium ion battery blowing device |
| CN209423882U (en) * | 2018-12-26 | 2019-09-24 | 中冶京诚工程技术有限公司 | Webbing cuts down blow device and electrostatic powder spraying device |
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