CN211463562U - Plate and strip powder spraying device - Google Patents
Plate and strip powder spraying device Download PDFInfo
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- CN211463562U CN211463562U CN201922193137.4U CN201922193137U CN211463562U CN 211463562 U CN211463562 U CN 211463562U CN 201922193137 U CN201922193137 U CN 201922193137U CN 211463562 U CN211463562 U CN 211463562U
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- strip
- powder
- spraying
- plate
- slab band
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Abstract
The utility model provides a slab band powder spraying device, including at least a set of spraying mechanism, spraying mechanism includes a plurality of spray guns along the width direction interval arrangement of slab band, and is a plurality of including a plurality of spray guns and two at least jet-propelled spray guns, a plurality of in the spray gun spray guns all with the surface of slab band corresponds the setting, just the outside on the last both sides limit of width direction of slab band corresponds respectively and sets up at least one jet-propelled spray gun. The utility model provides a slab band powder spraying device can effectively improve the powder volume of going up limit portion in slab band surface width direction, reduces the loss of powder extravagant, and the powder that is kept in the surface department of slab band can evenly be attached to the slab band on the surface, guarantees the homogeneity that the slab band was surperficial to powder to guarantee after toasting that the slab band surface each department film thickness is unanimous, improve the product percent of pass of static powder spraying slab band.
Description
Technical Field
The utility model belongs to the technical field of powder electrostatic spraying technique and specifically relates to indicate a slab band powder spraying device of continuous electrostatic powder spraying technique who relates to intermittent steel sheet in plane, aluminum plate or coil of strip, aluminium book.
Background
At present, in the production standard of carrying out powder continuous electrostatic spraying on intermittent steel plates, aluminum plates or steel coils and aluminum coils, after the electrostatic powder spraying is adopted and heated and baked, the thickness of a paint film on the electrostatic powder spraying is required to be uniform and consistent along the width range of the plates and the strips, and the error is very small. In the existing plate and belt continuous electrostatic powder spraying mode, electrostatic powder spray guns are adopted, and a plurality of spray guns are arranged in a row and are arranged in multiple rows for spraying; the spray guns carry powder by adopting compressed air, the powder with static electricity sprayed out of the spray guns is sprayed out by charging of the electrostatic discharge device at the head of the spray guns, and the powder with static electricity sprayed out of the spray guns is adsorbed on the surface of the metal plate strip by the attraction between the charge and the metal under the action of the static electricity.
Take one row of spray guns as an example: because a plurality of spray guns arranged in a row simultaneously spray a large amount of compressed air and powder, the compressed air quickly expands after being sprayed out of the spray guns; the spray guns in the row are close to each other, the compressed air sprayed by the spray guns in the middle row can transversely extrude and blow the compressed air and the sprayed powder sprayed by the spray guns at the edge part, so that the transverse drift velocity of the powder sprayed by the spray guns at the edge part is far greater than that of the powder sprayed by the spray guns at the middle part, therefore, the powder sprayed by the spray guns on the edge part is relatively poor in the capability of being adsorbed on the surface of the plate strip by utilizing the electrostatic charge effect, is extruded and blown to the outer parts of two sides of the plate strip in the width direction without falling on the plate strip, reduces the powder adhering amount of the powder sprayed by the spray guns on the surface of the plate strip, and causes serious powder waste, and the powder on the surface of the plate strip is uneven along the width direction of the plate strip, and the thickness of the powder on the edge of the plate strip is thinner, so that the thickness of a paint film on the surface of the plate strip is inconsistent along the width direction of the plate strip after baking, and the qualification rate of the plate strip is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a slab band powder spraying device can effectively improve the powder volume of the last limit portion of spraying in-process slab band surface width direction, reduces the waste of spraying in-process powder, guarantees that the slab band surface is evenly being powdered to guarantee to toast the paint film thickness on back slab band surface unanimously, improve the qualification rate of slab band.
In order to achieve the above object, the utility model provides a slab band powder spraying device, wherein, slab band powder spraying device includes at least a set of spraying mechanism, spraying mechanism includes a plurality of spray guns along the width direction interval arrangement of slab band, and is a plurality of including a plurality of spray guns and two at least jet-propelled spray guns, a plurality of in the spray gun all with the surface of slab band corresponds the setting, each spray gun's spout all moves towards the surface of slab band, just the outside on the width direction of slab band both sides limit corresponds respectively and sets up at least one jet-propelled spray gun, each spray gun's spout all moves towards the plane at the surface place of slab band.
The strip powder coating apparatus as defined above, wherein each of the guns is movable in a direction perpendicular to the strip to approach or move away from the strip.
The plate strip powder spraying device described above, wherein a difference between a distance between each air-jet gun and a plane of the plate strip and a distance between each air-jet gun and the plate strip is 0mm to 200 mm.
The sheet strip powder spraying device as described above, wherein the air injection pressure of each air injection lance is 0.1MPa to 0.8 MPa.
The plate strip powder spraying device is characterized in that the spraying mechanisms are provided with a plurality of groups, and the plurality of groups of spraying mechanisms are arranged at intervals along the length direction of the plate strip.
The plate strip powder spraying device comprises a spraying room, wherein an inlet is formed in the side wall of one end of the spraying room, an outlet opposite to the inlet is formed in the side wall of the other end of the spraying room, and the spraying mechanism is arranged above the inside of the spraying room.
The plate strip powder spraying device is characterized in that the top plate of the spraying room and/or the side walls of the two sides of the spraying room are/is provided with an air inlet, and the bottom plate of the spraying room is provided with a negative pressure air inlet.
The plate strip powder spraying device is characterized in that a plurality of air inlets are formed in the plate strip powder spraying device, and the plurality of air inlets correspond to two sides of the plate strip in the width direction;
the negative pressure air suction opening is formed in a center line of a bottom plate of the spraying room, and the center line is parallel to the movement direction of the plate strip.
As above slab band powder spraying device, wherein, spout the inside of room and be equipped with two air current baffle, two air current baffle symmetry is located the edge of negative pressure inlet scoop both sides on the width direction of slab band, two the top edge of air current baffle respectively with spout the internal surface of the lateral wall of room and meet, and two the lower limb of air current baffle respectively with spout the bottom plate of room and meet, two distance between the air current baffle reduces gradually from top to bottom, and two the air current baffle with the bottom plate of spouting the room meets the position and is located respectively the edge of negative pressure inlet scoop both sides on the width direction of slab band.
Compared with the prior art, the utility model has the advantages as follows:
the utility model provides a slab band powder spraying device, the outside through the both sides limit at the slab band corresponds respectively and sets up air-jet spray gun, when air-jet spray gun spouts gas-jet, can form the air current wall respectively in the outside on the both sides limit of slab band, effectively prevent each spray gun spun powder to the outside drift of the both sides of slab band, the surface department at the slab band of spray gun spun powder is kept to each spray gun spun powder, effectively improve the powder volume of going to powder on slab band surface width direction limit portion region, reduce the loss of powder and waste, and the powder that is kept in the surface department of slab band can evenly be attached to on the surface of slab band, guarantee the homogeneity that the slab band is going to powder on the surface, thereby guarantee that the slab band surface each department's film thickness is unanimous after toasting, improve the product percent of pass of electrostatic.
Drawings
The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. Wherein:
fig. 1 is a schematic perspective view of a plate belt powder spraying device provided by the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1;
fig. 3 is a schematic view of the structure in the direction B in fig. 1.
The reference numbers illustrate:
1. a spraying mechanism;
11. a powder spraying gun;
12. a gas injection spray gun;
2. plate and strip;
3. spraying a room;
31. an inlet;
32. an outlet;
33. an air inlet;
34. a negative pressure air inlet;
4. an air flow guide plate.
Detailed Description
In order to clearly understand the technical solution, purpose and effect of the present invention, the detailed embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention provides a plate strip powder spraying apparatus, wherein the plate strip powder spraying apparatus includes at least one group of spraying mechanism 1, the spraying mechanism 1 includes a plurality of spray guns spaced along the width direction of the plate strip 2, the plurality of spray guns includes a plurality of spray guns 11 and at least two spray guns 12, the plurality of spray guns 11 are all disposed corresponding to the surface of the plate strip 2, and the outer sides of the two side edges (see fig. 3) of the plate strip 2 in the width direction are respectively disposed with at least one spray gun 12, i.e. the plurality of spray guns are arranged in a row, wherein each spray gun 11 is located in the middle corresponding to the plate strip 2, the spray guns 12 are located in the two sides corresponding to the outer sides of the two sides of the plate strip 2, the nozzle of each spray gun 11 faces the plate strip 2, the nozzle of each spray gun 12 faces the plane of the surface of the plate strip 2, which is illustrated in detail by taking fig. 3 as, the powder spraying guns 11 downwards spray powder towards the plate strip 2, the powder sprayed by the powder spraying guns 11 directly reaches the surface of the plate strip 2, the gas spraying guns 12 spray gas towards the outer sides of the edges of the two sides of the plate strip 2 (close to the edges of the two sides of the plate strip 2), the gas sprayed by the gas spraying guns 12 is not sprayed towards the surface of the plate strip 2 but is sprayed towards the lower side of the plate strip 2 from the edges of the two sides of the plate strip 2, so that airflow sprayed by the gas spraying guns 12 forms airflow walls on the two sides of the plate strip 2, the powder sprayed by the powder spraying guns 11 is kept above the plate strip 2, the powder is prevented from drifting towards the two outer sides from the edges of the two sides of the plate strip 2, the powder coating amount of the powder on the edge part of the surface of the plate strip 2 is improved, the powder loss is reduced, the powder coating uniformity of the powder on the edge part of the, the product qualification rate of the powder spraying plate belt 2 is ensured.
It should be noted that the powder spray gun 11 and the air injection spray gun 12 may be the same spray gun, the powder spray gun 11 may be obtained by introducing powder and compressed air into the spray gun, and the air injection spray gun 12 may be obtained by introducing only compressed air into the spray gun without introducing powder into the spray gun, and in the actual production process, the number of the powder spray guns 11 is selected according to the width of the plate strip 2, and the powder passage is cut off by two spray guns corresponding to the outer sides of the two sides of the plate strip 2 and adjacent to the selected outermost powder spray gun, and only compressed air is supplied, so as to obtain the air injection spray gun 12.
Further, as shown in fig. 1 and 3, the utility model provides a slab band powder spraying device, wherein, each spray gun homoenergetic is followed the direction motion of perpendicular to slab band 2 and is in order to be close to slab band 2 or keep away from slab band 2, and the distance between each spray gun and the slab band 2 all can be adjusted promptly to adapt to different powder and spraying requirements.
Preferably, as shown in fig. 3, the present invention provides a strip powder spraying apparatus, wherein the range of the compressed air sprayed from each air spray gun 12 is formed to be substantially umbrella-shaped, and the range of the powder sprayed from each powder spray gun 11 is also formed to be substantially umbrella-shaped, and when installed, the umbrella-shaped range formed by the compressed air sprayed from the air spray gun 12 and the umbrella-shaped range formed by the powder spray guns 11 located on both sides in the width direction of the strip 2 partially intersect with each other, so that the compressed air sprayed from the air spray gun 12 blocks the powder sprayed from the powder spray guns 11.
As preferred, the utility model provides a slab band powder spraying device, wherein, the difference of the distance between the plane at each jet-propelled spray gun 12 and slab band 2 place and the distance between each spray-propelled spray gun 11 and slab band 2 is 0mm ~ 200mm to guarantee that each jet-propelled spray gun 12 spun air current has suitable intensity and blowout form when arriving slab band 2 both sides and effectively blocks that each spray-propelled spray gun 11 spun powder runs off from slab band 2's both sides, it is nevertheless to explain that, above-mentioned difference is only the utility model discloses a preferred embodiment, technical personnel in the art can also establish above-mentioned difference into other numerical values, the utility model discloses do not use this for the limit.
Preferably, the utility model provides a slab band powder spraying device, wherein, the jet-propelled pressure of each jet-propelled spray gun 12 is 0.1MPa ~ 0.8MPa to guarantee that each jet-propelled spray gun 12 spun air current has sufficient intensity and forms the air current wall that can block the powder and run off.
As preferably, as shown in fig. 1 and 2, the utility model provides a slab band powder spraying device, wherein, spraying mechanism 1 is equipped with the multiunit, and multiunit spraying mechanism 1 sets up along the length direction interval of slab band 2 to improve spraying speed, thereby improve the production speed of slab band 2.
Further, as shown in fig. 1 to 3, the plate strip powder spraying apparatus provided by the present invention further includes a spraying room 3, wherein the specific spraying operation of the plate strip 2 is completed in the spraying room 3, the spraying room 3 includes two side walls of the end portion perpendicular to the advancing direction of the plate strip 2, two side walls of the side portion parallel to the advancing direction of the plate strip 2 and perpendicular to the width direction of the plate strip 2, a top plate and a bottom plate, an inlet 31 is formed on the side wall of one end of the spraying room 3, an outlet 32 opposite to the inlet 31 is formed on the side wall of the other end of the spraying room 3, the spraying mechanism 1 is disposed above the inside of the spraying room 3, the plate strip 2 enters the inside of the spraying room 3 through the inlet 31 of one end of the spraying room 3 during the spraying process, the spraying mechanism 1 disposed above the inside of the spraying room 3 performs the spraying operation on the plate strip 2, and the plate strip 2 after being sprayed reaches the outside of the spraying room 3 from the outlet 32 at the other end of the spraying room 3 to carry out the next process, the spraying operation is completed in the spraying room 3, so that the powder in the spraying process can be effectively prevented from diffusing to the surrounding environment to cause harm to the health of workers, meanwhile, the plate strip 2 to be sprayed can be protected, the condition that impurities in the outside air are mixed into the powder and adhere to the surface of the plate strip 2 in the spraying process is prevented, and the spraying quality of the plate strip 2 is ensured.
Further, as shown in fig. 1 and 3, the utility model provides a slab band powder spraying device, wherein, spout roof of room 3 and/or spout and seted up air intake 33 on the lateral wall of room 3's both sides, spout and seted up negative pressure inlet scoop 34 on room 3's the bottom plate, negative pressure inlet scoop 34 department is equipped with negative pressure suction device, the air current that makes the inside of spouting room 3 from top to bottom motion, will not adhere to the powder on slab band 2 surface from negative pressure inlet scoop 34 suction, prevent to spout the interior floated powder diffusion of room 3 and cause harm to staff's health in the surrounding environment.
As preferred, as shown in fig. 1 and 3, the utility model provides a slab band powder spraying device, wherein, air intake 33 has been seted up a plurality ofly, each position department in room 3 is spouted in the even process of air current ability in the room 3 of spouting in order to guarantee, thereby all siphoning away the powder of floating in the air of each position department in the room 3 of spouting, a plurality of air intakes 33 all correspond with slab band 2's width direction's both sides, in order to guarantee to spout the gas circulation path in the room 3 smooth and easy, it produces collision change flow direction and influences the intensity of air current wall and will be located the condition emergence that the powder between spraying mechanism 1 and slab band 2 was taken away with slab band 2 and spraying mechanism 1 to reduce the gas flow in-process in the room 3 of spouting.
Preferably, as shown in fig. 3, the plate strip powder spraying apparatus provided by the present invention, wherein the negative pressure air suction opening 34 is opened on a center line of a bottom plate of the spraying room 3 parallel to the moving direction of the plate strip 2, that is, each negative pressure air suction opening 34 extends along the length direction of the spraying room 3 (that is, the length direction of the plate strip 2), two air flow guide plates 4 are provided inside the spraying room 3, one side edges of the two air flow guide plates 4 are respectively connected with the inner surfaces of the side walls at both sides of the spraying room 3, the other side edges of the two air flow guide plates 4 are connected with the bottom plate of the spraying room 3, the connecting positions of the two air flow guide plates 4 and the bottom plate of the spraying room 3 are both located at both sides of the negative pressure air suction opening 34 along the width direction of the plate strip 2, that is, the two air flow guide plates 4 are obliquely arranged inside the spraying room 3 and symmetrically located at both sides of the negative pressure air suction opening 34, the upper edges of the two air flow guide plates 4 are, and the lower edges of the two air flow guide plates 4 are respectively connected with the bottom plates of the spraying room 3, which are positioned at two sides of the negative pressure air suction opening 34, along the width direction of the plate strip 2, the distance between the two air flow guide plates 4 is gradually reduced, namely the distance between the two air flow guide plates 4 is gradually reduced from top to bottom, so that air is guided to the negative pressure air suction opening 34 in the flowing process of the air in the spraying room 3, the air flow dead angle existing in the spraying room 3 is reduced, and the air at each position in the spraying room 3 can be sucked out from the negative pressure air suction opening 34 (namely discharged from the negative pressure air suction opening 34).
Wherein, the negative pressure air suction inlet 34 can also be provided in a plurality of numbers, and the arrangement of the air flow guide plate 4 can be omitted, the present invention is not limited to this.
In the above embodiments and the accompanying drawings, the case where the strip is horizontally disposed (i.e., horizontally disposed) is taken as an example for description, in addition to that, the strip may be in a vertical state, a state inclined with an included angle (the included angle is not equal to 90 °) with a horizontal plane, and the directions of the powder spray guns 11 and the air spray guns 12 in the spraying mechanism are adjusted according to the direction of the corresponding strip, so as to always maintain the direction perpendicular or approximately perpendicular to the strip, which is not limited by the present invention.
Compared with the prior art, the utility model has the advantages as follows:
the utility model provides a slab band powder spraying device, the outside through the both sides limit at the slab band corresponds respectively and sets up air-jet spray gun, when air-jet spray gun spouts gas-jet, can form the air current wall respectively in the outside on the both sides limit of slab band, effectively prevent each spray gun spun powder to the outside drift of the both sides of slab band, the surface department at the slab band of spray gun spun powder is kept to each spray gun spun powder, effectively improve the powder volume of going to powder on slab band surface width direction limit portion region, reduce the loss of powder and waste, and the powder that is kept in the surface department of slab band can evenly be attached to on the surface of slab band, guarantee the homogeneity that the slab band is going to powder on the surface, thereby guarantee that the slab band surface each department's film thickness is unanimous after toasting, improve the product percent of pass of.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (9)
1. The plate and strip powder spraying device is characterized by comprising at least one group of spraying mechanisms, wherein each spraying mechanism comprises a plurality of spray guns which are arranged at intervals along the width direction of a plate strip, each spray gun comprises a plurality of powder spraying guns and at least two air injection spray guns, the powder spraying guns are all arranged corresponding to the surface of the plate strip, the nozzle of each powder spraying gun faces the surface of the plate strip, at least one air injection spray gun is correspondingly arranged on the outer sides of two side edges in the width direction of the plate strip respectively, and the nozzle of each air injection spray gun faces the plane where the surface of the plate strip is located.
2. A strip powder coating apparatus according to claim 1, wherein each lance is movable in a direction perpendicular to the strip to move towards and away from the strip.
3. A strip powder coating apparatus according to claim 1 or 2, wherein the difference between the distance between each spray gun and the plane of the strip and the distance between each spray gun and the strip is 0mm to 200 mm.
4. A strip powder spraying apparatus according to claim 1, wherein the air injection pressure of each air injection lance is 0.1MPa to 0.8 MPa.
5. A strip powder coating apparatus according to claim 1, wherein the coating means is provided in a plurality of groups, the groups being spaced apart along the length of the strip.
6. A strip powder spraying apparatus according to claim 1, further comprising a spraying chamber, wherein an inlet is formed in a side wall of one end of the spraying chamber, an outlet opposite to the inlet is formed in a side wall of the other end of the spraying chamber, and the spraying mechanism is disposed above an inside of the spraying chamber.
7. A plate and strip powder spraying device as claimed in claim 6, wherein the top plate of the spraying chamber and/or the side walls on both sides of the spraying chamber are provided with air inlets, and the bottom plate of the spraying chamber is provided with a negative pressure air suction opening.
8. A plate and strip powder spraying device as claimed in claim 7, wherein a plurality of air inlets are formed in the plate and strip, and the plurality of air inlets correspond to both sides of the plate and strip in the width direction;
the negative pressure air suction opening is formed in a center line of a bottom plate of the spraying room, and the center line is parallel to the movement direction of the plate strip.
9. A plate belt powder spraying device as claimed in claim 7, wherein two air flow guide plates are provided inside the spraying chamber, the two air flow guide plates are symmetrically provided at both sides of the negative pressure air suction opening in the width direction of the plate belt, upper edges of the two air flow guide plates are respectively connected to inner surfaces of side walls of the spraying chamber, lower edges of the two air flow guide plates are respectively connected to a bottom plate of the spraying chamber, a distance between the two air flow guide plates is gradually reduced from top to bottom, and connection positions of the two air flow guide plates and the bottom plate of the spraying chamber are respectively located at both sides of the negative pressure air suction opening in the width direction of the plate belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922193137.4U CN211463562U (en) | 2019-12-09 | 2019-12-09 | Plate and strip powder spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922193137.4U CN211463562U (en) | 2019-12-09 | 2019-12-09 | Plate and strip powder spraying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211463562U true CN211463562U (en) | 2020-09-11 |
Family
ID=72369623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922193137.4U Active CN211463562U (en) | 2019-12-09 | 2019-12-09 | Plate and strip powder spraying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211463562U (en) |
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2019
- 2019-12-09 CN CN201922193137.4U patent/CN211463562U/en active Active
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