CN213468274U

CN213468274U - Electrostatic powder spraying device

Info

Publication number: CN213468274U
Application number: CN202021715910.5U
Authority: CN
Inventors: 李春华
Original assignee: Jiashan Hongyu Powder Coating Co ltd
Current assignee: Jiashan Hongyu Powder Coating Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-06-18
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses an electrostatic powder spraying device, include base, spraying gun and locate powder bucket and support on the base respectively. The utility model can change the spray head for use when the spray head is damaged or blocked in a detachable way; the multiple first porous heads on the multiple first connecting pipes in the spraying gun are fixed pairwise through the first reinforcing ribs, so that the structure is more stable, the problem that the spraying is uneven due to the fact that the multiple first porous heads shake is solved, the second porous heads on the second connecting pipes are used for spraying the front face of a workpiece, the multiple first porous heads on the multiple first connecting pipes spray the edge of the spraying front face of the second porous heads, the spraying area is larger, and the spraying efficiency is improved; when the workpiece has a tiny dead angle, the second porous head can spray the dead angle of the workpiece sprayed by the second porous head, so that the spraying effect of the spraying gun is better.

Description

Electrostatic powder spraying device

Technical Field

The utility model belongs to the technical field of the spray gun processing, in particular to electrostatic powder spraying device.

Background

Powder coating has been widely used since its advent as an important means for surface treatment. The powder is different from the traditional solvent-based coating, no polluting gas or liquid is discharged in the coating process, the powder is very environment-friendly to the processing environment or the processed product, and the powder becomes one of indispensable means in the surface treatment industry. The powder needs to be attracted to the workpiece by being charged, so that an effective coating is formed to protect and decorate the workpiece. Powder spray guns capable of generating high-voltage static electricity are generally used as production tools for powder coating, and such spray guns generate high-voltage, low-current and high-voltage electric fields, so that powder particles move in the high-voltage and low-current electric fields to be negatively charged and then are firmly adsorbed to workpieces to be coated. Such a process is commonly referred to as electrostatic powder spraying.

The inside single shower nozzle that only has of electrostatic powder device's spray gun at present, single shower nozzle spraying can't normally spray to the edge or the dead angle of work piece on to spray gun inner structure intensity is not enough, at the spraying in-process, can lead to the shower nozzle to rock and cause the spraying inhomogeneous.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an electrostatic powder coating apparatus capable of solving the above problems.

An electrostatic powder spraying device comprises a base, a spraying gun, a powder barrel and a support, wherein the powder barrel and the support are respectively arranged on the base, one end of the support, which is far away from the base, is provided with a controller, the spraying gun is connected with the controller, the support is also provided with a fixing frame for fixing the spraying gun, the powder barrel is provided with a connector, one end of the connector is connected with the controller, the other end of the connector is connected with the spraying gun, the spraying gun comprises a gun body, one end of which is connected with the connector, and a spray head detachably connected with the gun body, the spray head comprises a fixing sleeve, one end of which is detachably connected with the gun body, and a nozzle arranged at the other end of the fixing sleeve, a plurality of first connecting pipes arranged at intervals are arranged in the nozzle, a first porous head is arranged on each first connecting pipe, and a second connecting pipe, which is arranged between the plurality of first connecting pipes and is, first reinforcing ribs are arranged between every two first porous heads.

Furthermore, a second reinforcing rib is arranged between each first porous head and the second porous head.

Further, each of the first multi-orifice head ejection surfaces is disposed obliquely with respect to the second multi-orifice head ejection surface.

Furthermore, two corresponding first grooves and two second grooves located at the tail end of each first groove are arranged on the outer side wall of the fixed sleeve, third grooves are arranged on two sides of each first groove, two fixed blocks corresponding to and matched with the two first grooves are arranged in the nozzle, sliding blocks matched with the third grooves are arranged on two sides of each fixed block, and the sliding blocks on two sides of each fixed block are in sliding connection with the third grooves corresponding to two sides of the first grooves; and an elastic bulge matched with the second groove is arranged on the surface, facing the first groove, of each fixing block.

Compared with the prior art, the electrostatic powder spraying device provided by the utility model has the advantages that the replaceable spray head can be used when the spray head is damaged or blocked in a detachable way; the multiple first porous heads on the multiple first connecting pipes in the spraying gun are fixed pairwise through the first reinforcing ribs, so that the structure is more stable, the problem that the spraying is uneven due to the fact that the multiple first porous heads shake is solved, the second porous heads on the second connecting pipes are used for spraying the front face of a workpiece, the multiple first porous heads on the multiple first connecting pipes spray the edge of the spraying front face of the second porous heads, the spraying area is larger, and the spraying efficiency is improved; when the workpiece has a tiny dead angle, the second porous head can spray the dead angle of the workpiece sprayed by the second porous head, so that the spraying effect of the spraying gun is better.

Drawings

Fig. 1 is a schematic structural diagram of an electrostatic powder spraying device provided by the present invention.

Fig. 2 is a schematic structural view of the spray gun of fig. 1.

Fig. 3 is a front view of the nozzle of fig. 1.

Fig. 4 is an enlarged view of fig. 2A.

Fig. 5 is an enlarged view of fig. 2B.

Fig. 6 is a cross-sectional view of the spray head of fig. 2.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to fig. 6, it is a schematic structural diagram of an electrostatic powder spraying device provided by the present invention. The utility model provides an electrostatic powder spraying device, includes base 10, spray gun 20 and locates respectively powder bucket 11 and support 12 on the base 10, support 12 is kept away from base 10 one end is equipped with controller 121 just spray gun 20 with controller 121 connects, and the circular telegram through controller 121 control spray gun 20 carries out electrostatic spraying, makes the effectual attached to work piece of powder. Support 12 still is equipped with and is used for fixing the mount 122 of spray gun 20, be equipped with connector 111 on the powder bucket 11, connector 111 one end with controller 121 connects and the other end with spray gun 20 connects, and spray gun 20 can place on mount 122 after the powder spraying that powder bucket 11 carried is accomplished through to spray gun 20, makes things convenient for next use. The spraying gun 20 comprises a gun body 21 with one end connected with the connector 111 and a spray head 22 detachably connected with the gun body 21, the spray head 22 comprises a fixed sleeve 221 with one end detachably connected with the gun body 21 and a spray nozzle 222 arranged at the other end of the fixed sleeve 221, a plurality of first connecting pipes 2221 arranged at intervals are arranged in the spray nozzle 222, a first multi-hole head 22211 is arranged on each first connecting pipe 2221, a second connecting pipe (not shown in the figure) which is arranged among the first connecting pipes 2221 and is provided with a second multi-hole head 22221 is also arranged in the spray nozzle 222, a first reinforcing rib 2223 is arranged between every two first multi-hole heads 22211, and when the spray head 22 is damaged or the spray head 22 is blocked, the spray head 22 can be replaced; the multiple first multi-hole heads 22211 on the multiple first connecting pipes 2221 in the spraying gun 20 are fixed two by the first reinforcing ribs 2223, so that the structure is more stable, the problem of uneven spraying caused by the shaking of the multiple first multi-hole heads 22211 is solved, the second multi-hole heads 22221 on the second connecting pipes (not shown in the figure) are used for spraying the front side of a workpiece, the multiple first multi-hole heads 22211 on the multiple first connecting pipes 2221 are used for spraying the edge of the spraying front side of the second multi-hole heads 22221, so that the spraying area is larger, and the spraying efficiency is increased; when the workpiece has a small dead angle, the second multi-hole head 22221 can spray the dead angle of the workpiece sprayed by the second multi-hole head 22221, so that the spraying effect of the spraying gun 20 is better.

A second reinforcing rib 2224 is arranged between each first multi-hole head 22211 and the second multi-hole head 22221, so that the structural strength between each first multi-hole head 22211 and the second multi-hole head 22221 is further increased, and the spraying powder sprayed by the spraying gun 20 in the spraying process is more uniform.

Each spraying surface of the first multi-hole head 22211 is obliquely arranged relative to the spraying surface of the second multi-hole head 22221, and each first multi-hole head 22211 surrounds the dead angle of the second multi-hole head 22221 for spraying the workpiece, so that the effect of one-time in-place spraying of the sprayed workpiece is further increased, and the efficiency of the spraying work is further improved.

Two corresponding first grooves 2211 and two second grooves 2212 positioned at the tail end of each first groove 2211 are arranged on the outer side wall of the fixing sleeve 221, third grooves (not shown) are arranged on two sides of each first groove 2211, two fixing blocks 2225 corresponding to and matched with the two first grooves 2211 are arranged in the nozzle 222, sliding blocks 22251 matched with the third grooves (not shown) are arranged on two sides of each fixing block 2225, and the sliding blocks 22251 on two sides of each fixing block 2225 are in sliding connection with the third grooves (not shown) corresponding to two sides of the first grooves 2211; each fixing block 2225 is provided with an elastic protrusion 22252 facing the surface of the first groove 2211 and matching with the second groove 2212, and the elastic protrusion 22252 can be moved by the sliding nozzle 222, the elastic protrusion 22252 on the fixing block 2225 slides into the second groove 2212 and is clamped and fixed with the second groove 2212, so that the positions of the nozzle 222 and the fixing sleeve 221 are fixed, the nozzle 22 moves forwards by a certain sliding distance, the workpiece is matched for spraying, and the convenience is improved.

Compared with the prior art, the electrostatic powder spraying device provided by the utility model has the advantages that the replaceable spray head 22 can be used when the spray head 22 is damaged or the spray head 22 is blocked in a detachable mode; the multiple first multi-hole heads 22211 on the multiple first connecting pipes 2221 in the spraying gun 20 are fixed two by the first reinforcing ribs 2223, so that the structure is more stable, the problem of uneven spraying caused by the shaking of the multiple first multi-hole heads 22211 is solved, the second multi-hole heads 22221 on the second connecting pipes (not shown in the figure) are used for spraying the front side of a workpiece, the multiple first multi-hole heads 22211 on the multiple first connecting pipes 2221 are used for spraying the edge of the spraying front side of the second multi-hole heads 22221, so that the spraying area is larger, and the spraying efficiency is increased; when the workpiece has a small dead angle, the second multi-hole head 22221 can spray the dead angle of the workpiece sprayed by the second multi-hole head 22221, so that the spraying effect of the spraying gun 20 is better.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. An electrostatic powder spraying device, characterized in that: the electrostatic powder spraying device comprises a base, a spraying gun, a powder barrel and a support, wherein the powder barrel and the support are respectively arranged on the base, one end of the support, which is far away from the base, is provided with a controller, the spraying gun is connected with the controller, the support is also provided with a fixing frame for fixing the spraying gun, the powder barrel is provided with a connector, one end of the connector is connected with the controller, the other end of the connector is connected with the spraying gun, the spraying gun comprises a gun body, one end of which is connected with the connector, and a spray head detachably connected with the gun body, the spray head comprises a fixing sleeve, one end of which is detachably connected with the gun body, and a nozzle arranged at the other end of the fixing sleeve, a plurality of first connecting pipes arranged at intervals are arranged in the nozzle, a first porous head is arranged on each first connecting pipe, and a second connecting pipe, which is arranged between the plurality of first connecting pipes, first reinforcing ribs are arranged between every two first porous heads.

2. An electrostatic powder spray coating apparatus as claimed in claim 1, wherein: and a second reinforcing rib is arranged between each first porous head and the second porous head.

3. An electrostatic powder spray coating apparatus as claimed in claim 1 or 2, wherein: each of the first multi-orifice head ejection surfaces is disposed obliquely to the second multi-orifice head ejection surface.

4. An electrostatic powder spray coating apparatus as claimed in claim 3, wherein: two corresponding first grooves and two second grooves positioned at the tail end of each first groove are formed in the outer side wall of the fixed sleeve, third grooves are formed in two sides of each first groove, two fixed blocks corresponding to and matched with the two first grooves are arranged in the nozzle, sliding blocks matched with the third grooves are arranged on two sides of each fixed block, and the sliding blocks on two sides of each fixed block are in sliding connection with the third grooves corresponding to the two sides of the first grooves; and an elastic bulge matched with the second groove is arranged on the surface, facing the first groove, of each fixing block.