CN214321059U

CN214321059U - Anti-blocking spray nozzle for pretreatment of coating

Info

Publication number: CN214321059U
Application number: CN202022746389.8U
Authority: CN
Inventors: 盛剑; 胡迎杰; 李敏; 倪伟杰; 茅立安; 陈云; 沈泽京; 詹永根; 倪晓锋
Original assignee: Zhejiang Mingquan Industrial Equipment Technology Co ltd
Current assignee: Zhejiang Mingquan Industrial Equipment Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-10-01
Anticipated expiration: 2030-11-24

Abstract

The utility model relates to a powder coating technical field especially relates to a processing is with preventing blockking up spraying nozzle before application. The spray liquid tank is communicated with the spray liquid tank, the other end of the spray liquid tank is provided with a conical pipe, the sharp end of the conical pipe is provided with a spray through hole, the spray liquid tank comprises a narrow pipe and a wide pipe, the inner diameter of the wide pipe is larger than that of the narrow pipe, and the round thick end of the conical pipe is connected with the wide pipe; the narrow pipe is a hard pipe, the inner wall of the narrow pipe is provided with a plurality of moving chutes along the moving direction of the fluid, and one end of each moving chute, which is close to the wide pipe, is opened; the spraying through hole is internally provided with a movable dredging head, the movable dredging head is connected with a stressed annular plate through a connecting rod, the inner ring of the stressed annular plate is connected with the connecting rod, the outer ring of the stressed annular plate is provided with a lug which can be inserted into the moving chute, and the stressed annular plate is connected with the taper pipe through an elastic piece. This application is through the setting of atress crown plate and activity mediation head for when spraying, rivers promote the atress crown plate and remove, thereby drive the first removal of activity mediation and pass the through-hole that sprays in order to realize the mediation and prevent blockking up.

Description

Anti-blocking spray nozzle for pretreatment of coating

Technical Field

The utility model relates to a powder coating technical field especially relates to a processing is with preventing blockking up spraying nozzle before application.

Background

The powder spraying is to spray powder paint on the surface of a workpiece by using a powder spraying device, the powder is uniformly adsorbed on the surface of the workpiece under the action of static electricity to form a powdery coating, the powdery coating is baked, leveled and cured at high temperature to form final coatings with different effects (different kinds of effects of the powder paint), the spraying effect of the powder spraying is superior to that of a paint spraying process in the aspects of mechanical strength, adhesive force, corrosion resistance, aging resistance and the like, and the cost is also lower than that of the spraying with the same effect. In order to fully exert the characteristics of powder coating and prolong the service life of a coating film, the surface of a coated object is strictly subjected to surface pretreatment firstly to remove dust and oil stains attached to the surface of a workpiece, and a film is formed on the surface of the workpiece, so that the binding force between the workpiece and powder is improved. The surface pretreatment comprises the following steps: hot water washing → pre-degreasing → water washing 1 → water washing 2 → water direct injection → silane → water washing 3 → water washing 4 → water direct injection → (artificial air gun) blowing water → dropping water.

Publication number is CN 210965563U's patent document discloses such application water spray nozzle, including the shower, a plurality of evenly distributed's nozzle is installed to the shower bottom, the one end of shower is rotated and is connected with the carousel, and the other end is connected with the inlet tube through rotary joint, the shower all overlaps and is equipped with the mounting panel all around, the shower rotates through the bearing and connects on the mounting panel, the mounting panel all installs on the installation face through a plurality of fixed establishment with the carousel, install adjustment mechanism on the mounting panel. Because the water that adopts when spraying is not distilled water, long-time spraying can lead to the nozzle to tie up the incrustation scale, causes the problem of nozzle jam to the influence sprays the effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the above problem and provide a processing is with preventing blockking up spray nozzle before the application.

The technical scheme of the utility model for solving the problems is that, the anti-blocking spray nozzle for the pretreatment of coating is provided, which comprises a flow guide pipe, wherein one end of the flow guide pipe is communicated with a spray liquid groove, the other end of the flow guide pipe is provided with a taper pipe, the sharp end of the taper pipe is provided with a spray through hole, the flow guide pipe comprises a narrow pipe and a wide pipe, the inner diameter of the wide pipe is larger than that of the narrow pipe, and the round thick end of the taper pipe is connected with the wide pipe; the narrow pipe is a hard pipe, a plurality of moving sliding grooves are formed in the inner wall of the narrow pipe along the moving direction of fluid, and one end of each moving sliding groove, which is close to the wide pipe, is opened; the inner ring of the stress ring plate is connected with the connecting rod, the outer ring of the stress ring plate is provided with a lug which can be inserted into the moving chute, and the stress ring plate is connected with the taper pipe through an elastic piece.

As the utility model discloses a preferred, be equipped with concentric inner tube in the narrow pipe, concentric inner tube inner chamber forms the air current chamber, form the liquid flow chamber between narrow pipe and the concentric inner tube.

As the utility model discloses a preferred, narrow pipe and concentric inner tube are connected through a plurality of down tube, the down tube with the axial contained angle of honeycomb duct is 15~ 30.

As a preferred aspect of the present invention, the force-receiving ring plate includes a liquid flow force-receiving portion located in the liquid flow chamber and an air flow force-receiving portion located in the air flow chamber, the air flow force-receiving portion includes a fixed sleeve sleeved on the connecting rod through a rotating bearing, and a plurality of single rods for connecting an outer annular surface of the fixed sleeve and an inner annular surface of the liquid flow force-receiving portion, and an end portion of the connecting rod, which is not connected to the movable dredging head, is provided with a fan blade for receiving an air flow to rotate; the concentric inner tube is characterized in that a plurality of sealing sliding grooves are formed in the outer wall or/and the inner wall of the concentric inner tube along the movement direction of fluid, a sealing tube is vertically arranged on the stress annular plate, and sealing blocks capable of being inserted into the sealing sliding grooves are arranged on the inner wall or/and the outer wall of the sealing tube.

As an optimization of the utility model, the sealing sliding groove is close to one end of the wide pipe is provided with a stop block.

As the utility model discloses a preferred, activity dredging head includes first conical head and second conical head, the circle butt of first conical head with the circle butt of second conical head passes through the cylinder and connects, the external diameter of cylinder is not more than spray through-hole's aperture.

Preferably, the outer annular surface of the cylinder is provided with a brush.

As the utility model discloses an prefer, connect through the pipe chute that the cross-section is the round platform shape between narrow pipe and the wide pipe.

As the optimization of the utility model, the stress ring plate is a hollow plastic plate.

The utility model has the advantages that:

1. this application is through the setting of atress crown plate and activity mediation head for when spraying, rivers promote the atress crown plate and remove, thereby drive the first removal of activity mediation and pass the spray through hole in order to realize the mediation. Meanwhile, when the spraying is not carried out, the movable dredging head reversely moves and blocks in the spraying through hole under the action of the elastic piece, so that external impurities are prevented from entering the spraying nozzle.

2. This application is through the setting in air current chamber and liquid flow chamber, and on the one hand makes the spray nozzle spun be the better gas-liquid mixture of cleaning performance, and on the other hand drives the first rotation of dredging of activity through receiving the air current with the pivoted fan blade, not only can further improve the effect that the first clearance of dredging of activity dredges the through-hole, can also help spreading out from the gas-liquid mixture that sprays the through-hole, improves the cleaning range to the work piece.

Drawings

FIG. 1 is a schematic structural view of an anti-clogging spray nozzle for pretreatment before painting;

in the figure: the device comprises a flow guide pipe 1, a narrow pipe 11, a moving chute 111, a wide pipe 12, a concentric inner pipe 13, an inclined rod 131, a sealing chute 132, a stop block 1321, a taper pipe 2, a spraying through hole 21, a connecting rod 31, a fan blade 311, a stress ring plate 32, a liquid flow stress part 321, an air flow stress part 322, a fixing sleeve 3221, a single rod 3222, a sealing pipe 323, a sealing block 3231, a convex block 33 and an elastic part 34.

Detailed Description

The following are embodiments of the present invention and the accompanying drawings are used to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

An anti-clogging spray nozzle for pretreatment before coating is shown in figure 1 and comprises a flow guide pipe 1, wherein one end of the flow guide pipe 1 is communicated with a spray liquid groove, a taper pipe 2 is arranged at the other end of the flow guide pipe 1, and a spray through hole 21 is formed in the sharp end of the taper pipe 2. In general, several flow pipes 1 may be fixed side by side on a mounting base, so that several spray through holes 21 together form a spray head. During the use, the spraying liquid in the spraying liquid groove gets into honeycomb duct 1, taper pipe 2 in proper order and then spouts from spraying through-hole 21, and spraying through-hole 21 is comparatively narrow in order to guarantee to spray liquid spun kinetic energy usually, so has just also caused and has sprayed the problem that blocks up, is difficult to the clearance after blockking up easily through 21.

In the present application, the flow guide tube 1 comprises a narrow tube 11 and a wide tube 12 with an inner diameter larger than that of the narrow tube 11 in the fluid movement direction, and the narrow tube 11 and the wide tube 12 can be connected through an inclined tube with a truncated cone-shaped section. The round thick end of the taper pipe 2 is connected with the wide pipe 12; the narrow pipe 11 is a hard pipe, the inner wall of the narrow pipe 11 is provided with a plurality of moving chutes 111 along the fluid moving direction, and one end of each moving chute 111 close to the wide pipe 12 is opened; the spray through hole 21 is internally provided with a movable dredging head 3, the movable dredging head 3 is connected with a stress ring plate 32 through a connecting rod 31, the inner ring of the stress ring plate 32 is connected with the connecting rod 31, the outer ring is provided with a lug 33 which can be inserted into the motion chute 111, and the stress ring plate 32 is connected with the taper pipe 2 through an elastic piece 34. Before spraying, under the natural state of the elastic piece 34, the stress ring plate 32 is positioned in the narrow pipe 11, and the movable dredging head 3 is positioned in the taper pipe 2 or blocked in the spraying through hole 21. When spraying, the spraying liquid enters the narrow pipe 11 under the action of the water pump and moves towards the wide pipe 12, and the spraying liquid can push the stress ring plate 32 to move towards the wide pipe 12, so that the movable dredging head 3 is driven to move towards the spraying through hole 21 and penetrate through the spraying through hole 21, and the dredging of the spraying through hole 21 is completed. Meanwhile, the force-bearing ring plate 32 is pushed into the wide pipe 12, the spraying liquid is not blocked any more, and the spraying liquid can flow out from the gap between the side surface of the force-bearing ring plate 32 and the wide pipe 12, flows into the taper pipe 2 and is finally sprayed out from the spraying through hole 21.

In order to ensure that the spray liquid can smoothly push the force-bearing annular plate 32, in this embodiment, the force-bearing annular plate 32 is a hollow plastic plate. Simultaneously, in order to improve the mediation effect of activity mediation head 3, activity mediation head 3 includes first conical head and second conical head, and the circle butt end of first conical head and the circle butt end of second conical head pass through the cylinder and are connected, and the external diameter of cylinder is not more than the aperture of spray through hole 21, and the cylinder outer annular is equipped with the brush. So that according to the direction in fig. 1, the movable dredging head 3 can dredge the spraying through hole 21 no matter moves to the right under the pushing action of the spraying liquid or moves to the left under the restoring action of the elastic piece 31 after reducing the amount of the spraying liquid or removing the spraying liquid.

In addition, in order to further improve the effect of spraying, the spraying liquid of the spray nozzle of this application can adopt gas-liquid mixture. Can be equipped with concentric inner tube 13 in narrow pipe 11, narrow pipe 11 and concentric inner tube 13 are connected through a plurality of down tube 131, and the axial contained angle of down tube 131 and honeycomb duct 1 is 15~ 30. The inner cavity of the concentric inner tube 13 forms an airflow cavity, and a liquid flow cavity is formed between the narrow tube 11 and the concentric inner tube 13.

In this case, the dredging effect can be further improved by utilizing the air flow characteristics. In this case, the force-bearing ring plate 32 includes a liquid flow force-bearing portion 321 located in the liquid flow cavity and an air flow force-bearing portion 322 located in the air flow cavity, the air flow force-bearing portion 322 includes a fixed sleeve 3221 sleeved on the connecting rod 31 through a rotating bearing, and a plurality of single rods 3222 for connecting an outer annular surface of the fixed sleeve 3221 and an inner annular surface of the liquid flow force-bearing portion 321, and an end portion of the connecting rod 31, which is not connected to the movable dredging head 3, is provided with a fan blade 311 for receiving air flow to rotate; the outer wall and/or the inner wall of the concentric inner pipe 13 is provided with a plurality of sealing chutes 132 along the moving direction of the fluid, the stress ring plate 32 is vertically provided with a sealing pipe 323, and the inner wall and/or the outer wall of the sealing pipe 323 is provided with a sealing block 3231 which can be inserted into the sealing chutes 132. The end of the seal chute 132 near the wide tube 12 is provided with a stop block 1321. When the air-flow dredging device is used, air flow enters the air flow cavity, the fan blades 311 rotate under the action of the air flow, so that the connecting rods 31 and the movable dredging heads 3 rotate, the dredging effect is improved, and meanwhile, the air flow enters the wide pipe 12 from gaps among the single rods 3222. The liquid flow enters the liquid flow cavity, the liquid flow stress part 321 is pushed to carry the air flow stress part 322 to move together, so that the movable dredging head 3 passes through the spraying through hole 21 to dredge, and meanwhile, the liquid flow enters the wide pipe 12 from a gap between the liquid flow stress part 321 and the wide pipe 12. Then, the air flow and the liquid flow are mixed in the wide pipe 12 and the taper pipe 2, and finally, are ejected from the shower through holes 21.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a pretreatment is with preventing blockking up spray nozzle before painting, includes honeycomb duct (1), honeycomb duct (1) one end with spray cistern intercommunication, the other end are equipped with taper pipe (2), the sharp end of taper pipe (2) is equipped with sprays through-hole (21), its characterized in that: the flow guide pipe (1) comprises a narrow pipe (11) and a wide pipe (12) with the inner diameter larger than that of the narrow pipe (11) along the movement direction of fluid, and the round thick end of the conical pipe (2) is connected with the wide pipe (12); the narrow pipe (11) is a hard pipe, a plurality of moving sliding grooves (111) are formed in the inner wall of the narrow pipe (11) along the moving direction of the fluid, and one end of each moving sliding groove (111) close to the wide pipe (12) is opened; the inner ring of the stress ring plate (32) is connected with the connecting rod (31), the outer ring of the stress ring plate is provided with a convex block (33) which can be inserted into the motion sliding groove (111), and the stress ring plate (32) is connected with the taper pipe (2) through an elastic piece (34).

2. The anti-clogging spray nozzle for pretreatment for coating according to claim 1, characterized in that: a concentric inner pipe (13) is arranged in the narrow pipe (11), an air flow cavity is formed in the inner cavity of the concentric inner pipe (13), and a liquid flow cavity is formed between the narrow pipe (11) and the concentric inner pipe (13).

3. The anti-clogging spray nozzle for pretreatment for coating according to claim 2, characterized in that: narrow tube (11) and concentric inner tube (13) are connected through a plurality of down tube (131), down tube (131) with honeycomb duct (1) axial contained angle is 15~ 30.

4. The anti-clogging spray nozzle for pretreatment for coating according to claim 2, characterized in that: the force-bearing ring plate (32) comprises a liquid flow force-bearing part (321) positioned in the liquid flow cavity and an air flow force-bearing part (322) positioned in the air flow cavity, the air flow force-bearing part (322) comprises a fixed sleeve (3221) sleeved on the connecting rod (31) through a rotating bearing and a plurality of single rods (3222) used for connecting the outer annular surface of the fixed sleeve (3221) and the inner annular surface of the liquid flow force-bearing part (321), and fan blades (311) used for receiving air flow to rotate are arranged at the end part, which is not connected with the movable dredging head (3), of the connecting rod (31); the outer wall or/and the inner wall of the concentric inner pipe (13) is/are provided with a plurality of sealing sliding grooves (132) along the fluid movement direction, the stress ring plate (32) is vertically provided with a sealing pipe (323), and the inner wall or/and the outer wall of the sealing pipe (323) is/are provided with a sealing block (3231) capable of being inserted into the sealing sliding grooves (132).

5. The anti-clogging spray nozzle for pretreatment for coating according to claim 4, characterized in that: a stop block (1321) is arranged at one end, close to the wide pipe (12), of the sealing sliding groove (132).

6. The anti-clogging spray nozzle for pretreatment for coating according to claim 1, characterized in that: the movable dredging head (3) comprises a first conical head and a second conical head, the round thick end of the first conical head is connected with the round thick end of the second conical head through a cylinder, and the outer diameter of the cylinder is not larger than the aperture of the spraying through hole (21).

7. The anti-clogging spray nozzle for pretreatment for coating according to claim 6, characterized in that: the outer ring surface of the cylinder is provided with a hairbrush.

8. The anti-clogging spray nozzle for pretreatment for coating according to claim 1, characterized in that: the narrow pipe (11) and the wide pipe (12) are connected through an inclined pipe with a truncated cone-shaped section.

9. The anti-clogging spray nozzle for pretreatment for coating according to claim 1, characterized in that: the stress ring plate (32) is a hollow plastic plate.