CN-224221664-U - Powder internal spraying device for straight pipe with elbow

Abstract

The utility model relates to a powder internal spraying device for a straight pipe with an elbow, which comprises an elbow end powder recoverer, a straight pipe end powder recoverer, a workpiece trolley, a straight pipe with an elbow and a spraying unit, wherein the straight pipe with the elbow is placed on the workpiece trolley, the elbow end powder recoverer is arranged at the elbow end of the straight pipe with the elbow, the straight pipe end powder recoverer is arranged at the straight pipe end of the straight pipe with the elbow, the spraying unit is aligned with the straight pipe with the elbow in an adjusting position, and the spraying unit stretches into the straight pipe with the elbow for spraying. Compared with the prior art, the utility model is provided with the bent pipe end powder recoverer and the straight pipe end powder recoverer, so that redundant powder can be collected in the process of spraying the bent pipe, and meanwhile, the spraying unit can automatically align the center of the straight pipe with the elbow, thereby being convenient for spraying.

Inventors

• FAN JIANHUA
• WU XUEZHEN
• HUANG YUNFEI
• ZHENG HONGGANG
• WANG TAO
• WANG JIE
• LI CHUNBING
• JIN ZHONGZHI
• ZHOU SHIJIE
• ZHANG JIA

Assignees

• 上海图博可特石油管道涂层有限公司

Dates

Publication Date

20260512

Application Date

20250528

Claims (10)

1. 1. A spray coating device in powder for taking elbow straight tube, its characterized in that includes elbow end powder recoverer (1), straight tube end powder recoverer (2), work piece dolly (3), takes elbow straight tube (4) and spraying unit, take elbow straight tube (4) to place on work piece dolly (3), elbow end powder recoverer (1) is installed in the elbow end department of taking elbow straight tube (4), straight tube end powder recoverer (2) are installed in the straight tube end department of taking elbow straight tube (4), spraying unit adjusts the position and aligns with taking elbow straight tube (4), spraying unit stretches into in taking elbow straight tube (4) and sprays.
2. 2. The powder internal spraying device for the straight pipe with the elbow according to claim 1, wherein the spraying unit comprises a powder rotary cup (5), a red copper material pipe (6), a spraying motor (7), a tank chain (8), a powder supply pipe (13), a lifting unit and a spraying trolley, the powder supply pipe (13) is installed in the tank chain (8) and is communicated with the spraying trolley, the spraying motor (7) is installed on the tank chain (8) and is in communication connection with the powder rotary cup (5), the red copper material pipe (6) is installed on the spraying motor (7), the red copper material pipe (6) is respectively communicated with the powder rotary cup (5) and the powder supply pipe (13), and the tank chain (8) is placed on the lifting unit and is connected with the spraying trolley.
3. 3. An in-powder spraying device for a straight pipe with elbow according to claim 2, characterized in that the lifting unit includes a lifter (9) and a placement plate mounted on the lifter (9), on which placement plate the tank chain (8) is placed.
4. 4. A powder internal spraying device for a straight pipe with elbow according to claim 3, characterized in that the powder rotating cup (5) and the straight pipe with elbow (4) are aligned in center.
5. 5. An in-powder spray device for a straight pipe with an elbow according to claim 2, characterized in that the spray trolley comprises a powder spray gun (11) and a frame, the powder spray gun (11) being mounted on the frame, the powder spray gun (11) being connected to a tank chain (8) and communicating with a hose.
6. 6. The in-powder spray device for a straight pipe with an elbow according to claim 5, wherein the spray trolley further comprises a base (20), wheels (22) and a guide rail (30), the base (20) is mounted on a vehicle frame, the wheels (22) are mounted on the base (20), and the wheels (22) are mounted on the guide rail (30).
7. 7. An in-powder spray device for a straight pipe with an elbow according to claim 5, characterized in that the spray trolley further comprises a spray gun post (12) of a powder spray gun (11), the spray gun post (12) comprising a transverse rotation axis, the powder spray gun (11) being placed on a transverse rotation roller of the spray gun post (12).
8. 8. The powder internal spraying device for the straight pipe with the elbow according to claim 2, wherein the spraying trolley further comprises a venturi tube (14), a stainless steel powder box (15), a gas storage tube (25) and a gas path control unit, wherein the stainless steel powder box (15), the gas storage tube (25) and the gas path control unit are all installed on a frame, the venturi tube (14) is respectively communicated with a powder supply tube (13) and the gas path control unit, the powder supply tube (13) is communicated with a powder spray gun (11), and the gas path control unit is respectively communicated with the gas storage tube (25) and the stainless steel powder box (15).
9. 9. The in-powder spraying device for straight pipes with elbows according to claim 8, characterized in that the spraying trolley further comprises a first gas collecting block (17) and a second gas collecting block (18), wherein the first gas collecting block (17) and the second gas collecting block (18) are mounted on a gas path control unit.
10. 10. An in-powder spraying device for straight pipes with elbows according to claim 9, characterized in that the spraying trolley further comprises a dilution channel and a powder supply channel, both of which are mounted on the gas path control unit, the dilution channel being in communication with the second gas collecting block (18) and the venturi tube (14), respectively, and the powder supply channel being in communication with the first gas collecting block (17) and the venturi tube (14), respectively.

Description

Powder internal spraying device for straight pipe with elbow Technical Field The utility model relates to the technical field of internal spraying, in particular to a powder internal spraying device for a straight pipe with an elbow. Background The powder internal spraying technology is widely applied in the field of industrial manufacturing, and is particularly suitable for corrosion prevention and decoration of the inner surfaces of pipelines, containers and the like. The traditional internal spraying process mostly adopts linear spraying equipment, has a good treatment effect on the inner wall of the straight pipe, but has obvious limitation in treating the pipeline with the elbow structure. The special geometry of the elbow part causes that powder coating is difficult to uniformly adhere, and the problems of coating accumulation, open bottom or uneven thickness and the like are easy to occur, so that the corrosion resistance and the service life are influenced. The existing solutions comprise sectional disassembly and assembly spraying, flexible hose extension spraying and the like, but the former increases the complexity of the working procedure and the working hour cost, and the latter reduces the powder conveying efficiency due to the friction force of the inner wall of the hose, and the spraying track is difficult to accurately control. In addition, the change of the curvature radius of the elbow position puts higher requirements on the dynamic adjustment of the spraying parameters, and the traditional equipment lacks self-adaptive adjustment capability, so that the quality stability of the coating is insufficient. The utility model discloses a full-automatic pipe bending powder spraying device, which comprises a workbench, a powder spraying unit and a powder recovery unit, wherein the workbench is used for placing heated pipe bending to be sprayed, the powder spraying unit comprises a walking component, a powder supply component and a high-temperature-resistant hose powder spray gun, the powder supply component and the high-temperature-resistant hose powder spray gun are arranged on the walking component, the high-temperature-resistant hose powder spray gun comprises a high-temperature-resistant hose, a powder spray head with a plurality of spray nozzles, a plurality of groups of centering guide wheels, and a plurality of powder supply pipes, wherein the spray nozzles are arranged at the tail end of the high-temperature-resistant hose, the centering guide wheels are wrapped outside the high-temperature-resistant hose, the powder supply pipes are arranged in the high-temperature-resistant hose, one ends of the powder supply pipes are connected with the spray nozzles in a one-to-one correspondence manner, the other ends of the powder supply pipes are connected with the powder supply component, the powder recovery unit and the powder spraying unit are separated at two sides of the workbench and used for collecting redundant powder in the powder spraying process. Therefore, providing a spray head device capable of adjusting the alignment position in real time is an urgent problem to be solved at present. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide the powder internal spraying device for the straight pipe with the elbow. The aim of the utility model can be achieved by the following technical scheme: According to one aspect of the present utility model, there is provided an in-powder spraying device for a straight pipe with an elbow, comprising an elbow-end powder recoverer, a straight pipe-end powder recoverer, a work piece trolley, a straight pipe with an elbow placed on the work piece trolley, and a spraying unit, wherein the elbow-end powder recoverer is installed at an elbow end of the straight pipe with an elbow, the straight pipe-end powder recoverer is installed at a straight pipe end of the straight pipe with an elbow, the spraying unit is aligned with the straight pipe with an elbow in an adjusting position, and the spraying unit stretches into the straight pipe with an elbow to spray. As the preferable technical scheme, the spraying unit includes powder revolves cup, red copper material pipe, spraying motor, tank chain, supplies powder pipe, elevating unit and spraying dolly, supply the powder pipe to install in the tank chain and with spraying dolly intercommunication, the spraying motor is installed on the tank chain and revolve cup communication connection with the powder, red copper material pipe is installed on the spraying motor, red copper material pipe respectively revolves cup and supply the powder pipe intercommunication with the powder, tank chain is placed on elevating unit and is connected with spraying dolly. As a preferable technical scheme, the lifting unit includes a lifter and a placement plate, the placement plate is mounted on the lifter, and the tank chain is placed on the placement plate. As a preferable technica