Continuous spraying machine for surface coating of stainless steel pipe

Abstract

The invention relates to the field of coating spraying machines, in particular to a stainless steel pipe surface coating continuous spraying machine which comprises a movable spraying machine body and the like. According to the continuous spraying machine for the coating on the surface of the stainless steel pipe, a complete annular shell composed of a lower half-ring shell and an upper half-ring shell surrounds the outer side of a stainless steel pipe guardrail, and spray heads surrounding the periphery of the stainless steel pipe guardrail are connected between the lower half-ring shell and the upper half-ring shell; the anti-corrosion coating is synchronously sprayed in all directions of the stainless steel pipe guardrail, the distance between the spraying head and the stainless steel pipe guardrail can be adjusted through the distance adjusting lead screw, the stainless steel pipe guardrail spraying device can adapt to the stainless steel pipe guardrails of different thicknesses, the phenomenon that the anti-corrosion coating is sprayed out and wasted is reduced, and the phenomenon that sputtered waste drifts outwards is also reduced. The technical problems that due to the fact that the phenomenon that a large amount of anti-corrosion paint is sprayed out easily when the anti-corrosion paint is manually sprayed to the stainless steel pipe guardrail, serious air environment pollution is caused, and a large amount of anti-corrosion paint is wasted are solved.

Description

Technical Field

[0001] The invention relates to the field of coating spraying machines, in particular to a continuous coating spraying machine for the surface of a stainless steel pipe. Background Art

[0002] In a humid environment or chemical production environment, stainless steel pipe guardrails are prone to accumulate dust or metal particles containing other metal elements, which produce electrochemical reactions with stainless steel pipes, destroying the anti-corrosion paint protective film already on the outer layer, causing serious corrosion to the stainless steel pipes. Therefore, in this environment, it is necessary to frequently and regularly spray a new layer of anti-corrosion paint on the stainless steel pipe guardrails. In the process of manually using a spray gun to spray anti-corrosion paint on the stainless steel pipe guardrails one by one, due to the different thicknesses of different stainless steel pipe guardrails, it is difficult for humans to control the spray range of the stainless steel pipe guardrails, so a large amount of anti-corrosion paint is easily sprayed out. These sprayed anti-corrosion paints dispersed in the air will not only cause serious air pollution, but also cause a large amount of anti-corrosion paint waste. Summary of the invention

[0003] In order to overcome the disadvantage that a large amount of empty spraying occurs easily when manually spraying anti-corrosion coatings on stainless steel pipe guardrails, which not only causes serious air pollution but also causes a large amount of waste of anti-corrosion coatings, the present invention provides a continuous spraying machine for stainless steel pipe surface coatings.

[0004] The technical scheme is as follows: a continuous spraying machine for coating the surface of a stainless steel pipe, comprising a mobile spraying machine, a feed pipe, an arc tube, a telescopic tube, a nozzle, a handle, a lower semi-ring shell, an upper semi-ring shell, a torsion spring, a pitch-adjusting screw rod, a bevel gear and a semi-ring bevel rack; the mobile spraying machine is connected to the feed pipe; a start-stop switch for controlling the operation of the mobile spraying machine is installed on the feed pipe; a handle is fixedly connected to the feed pipe; a lower semi-ring shell is fixedly connected to the handle; an upper semi-ring shell is rotatably connected to the handle, and the upper semi-ring shell and the lower semi-ring shell initially form a complete annular shell; a torsion spring is fixedly connected between the upper semi-ring shell and the lower semi-ring shell; a pressure plate for controlling the opening and closing of the upper semi-ring shell and the lower semi-ring shell is fixedly connected to the upper semi-ring shell; an arc tube is fixedly connected in the lower semi-ring shell; an arc tube is also fixedly connected in the upper semi-ring shell ; The two arc tubes are connected to each other, and a telescopic folding structure is provided between the areas where the two arc tubes are connected to each other; the arc tube in the lower semi-ring shell is connected to the feed pipe; no less than two nozzles are slidably connected in the lower semi-ring shell; no less than two nozzles are also slidably connected in the upper semi-ring shell; a telescopic tube is connected between the arc tube and the corresponding nozzle; no less than two adjustable pitch screws are rotatably connected in the lower semi-ring shell, and the adjustable pitch screws are screwed to the corresponding nozzles through threads; no less than two adjustable pitch screws are also rotatably connected in the upper semi-ring shell, and the adjustable pitch screws are screwed to the corresponding nozzles through threads; a bevel gear is fixed to each adjustable pitch screw; a semi-ring bevel rack is slidably connected to the lower semi-ring shell; a semi-ring bevel rack is also slidably connected to the upper semi-ring shell; the two semi-ring bevel racks are meshed with the corresponding bevel gears respectively.

[0005] Preferably, a roller is rotatably connected to the nozzle.

[0006] Preferably, a semi-annular baffle is fixedly connected to the left and right sides of the lower semi-annular shell respectively; and a semi-annular baffle is also fixedly connected to the left and right sides of the upper semi-annular shell respectively.

[0007] Preferably, the outer surface of the semi-ring cone rack is provided with an anti-slip stripe structure.

[0008] Preferably, a suction pipe is provided on the lower semi-ring shell, and the outlet end of the suction pipe faces downward; a suction fan is installed in the suction pipe; a lower semi-annular channel structure connected to the suction pipe is opened in the lower semi-ring shell; and a plurality of lower suction hole structures connected to the lower semi-annular channel structure are opened on the inner surface of the lower semi-ring shell.

[0009] Preferably, an upper semi-annular channel structure connected to the lower semi-annular channel structure is provided in the upper semi-annular shell; and a plurality of upper suction hole structures connected to the upper semi-annular channel structure are provided on the inner surface of the upper semi-annular shell.

[0010] Preferably, all lower suction hole structures are respectively distributed on the left side and the right side of the lower semi-ring shell and close to the adjacent semi-ring baffle area; all upper suction hole structures are respectively distributed on the left side and the right side of the upper semi-ring shell and close to the adjacent semi-ring baffle area.

[0011] Preferably, a waste gas barrel is fixedly connected to the handle; an inner channel structure is provided in the waste gas barrel; and a gas supply pipe is commonly connected between the suction pipe and the inner channel structure of the waste gas barrel.

[0012] Preferably, an outer channel structure is provided in the waste gas barrel, the outer channel structure surrounds the outer side of the inner channel structure, and the outer channel structure is connected to the inner channel structure; a plurality of air outlet structures connected to the outer channel structure are provided on the waste gas barrel; a filter screen is fixedly connected to the outer channel structure of the waste gas barrel.

[0013] Preferably, an electric heater is installed on the waste gas barrel.

[0014] The present invention has the following advantages: a continuous spraying machine for coating the surface of a stainless steel pipe of the present invention has a lower semi-ring shell and an upper semi-ring shell connected to a feed pipe of the mobile spraying machine through a handle, and a complete annular shell composed of the lower semi-ring shell and the upper semi-ring shell surrounds the outside of the stainless steel pipe guardrail, and a nozzle surrounding the stainless steel pipe guardrail is connected between the lower semi-ring shell and the upper semi-ring shell, and anti-corrosion coating is sprayed to the stainless steel pipe guardrail in all directions synchronously, and the spacing between the nozzle and the stainless steel pipe guardrail can be adjusted by a pitch-adjusting screw rod to adapt to the thickness of different stainless steel pipe guardrails, thereby reducing the waste of anti-corrosion coating and the phenomenon of sputtering waste drifting outwards. In addition, a suction fan is also provided to timely suck and filter most of the sputtering waste and collect it into a waste gas barrel, further reducing the phenomenon of sputtering waste drifting outwards; the technical problem that a large amount of empty spraying is prone to occur when manually spraying anti-corrosion coating to the stainless steel pipe guardrail not only causes serious air pollution but also causes a large amount of waste of anti-corrosion coating is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 To specifically describe the structural diagram of the present invention; Figure 2 To specifically describe the structure diagram of the lower half ring shell and the upper half ring shell of the present invention; Figure 3 A first cross-sectional view of the lower half ring shell and the upper half ring shell of the present invention is specifically described; Figure 4 To specifically describe the schematic diagram of the upper semi-annular channel structure of the present invention; Figure 5 A second cross-sectional view of the lower half ring shell and the upper half ring shell is specifically described in the present invention; Figure 6To specifically describe the pitch-adjustable screw structure of the present invention; Figure 7 A cross-sectional view of a waste gas barrel for specifically describing the present invention.

[0016] Explanation of the accompanying drawings: 1-mobile sprayer, 11-feeding pipe, 111-start and stop switch, 12-arc pipe, 13-telescopic pipe, 14-spray head, 15-roller, 2-handle, 31-lower semi-ring shell, 3101-lower semi-ring channel structure, 3102-lower suction hole structure, 311-suction pipe, 312-suction fan, 313-air pipe, 32-upper semi-ring shell, 3201-upper semi-ring channel structure, 3202-upper suction hole structure, 321-pressure plate, 33-torsion spring, 34-semi-ring baffle, 41-adjustable pitch screw, 42-bevel gear, 43-semi-ring bevel rack, 5-exhaust barrel, 501-inner channel structure, 502-outer channel structure, 503-air outlet structure, 51-filter screen, 52-electric heater. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention. Example 1

[0018] A continuous spraying machine for coating the surface of a stainless steel pipe, such as Figure 1-Figure 6As shown, the mobile sprayer 1 includes a feeding pipe 11, an arc tube 12, a telescopic tube 13, a nozzle 14, a handle 2, a lower semi-ring housing 31, an upper semi-ring housing 32, a torsion spring 33, a pitch-adjusting screw 41, a bevel gear 42 and a semi-ring bevel rack 43; the mobile sprayer 1 is composed of a mobile chassis, a storage barrel and a feeding pump installed on the mobile chassis, the storage barrel is filled with anti-corrosion paint, the feeding port of the feeding pump is connected to the storage barrel, and the feeding port of the feeding pump is connected to the feeding pipe 11; a control device for controlling the mobile sprayer is installed on the feeding pipe 11. The coating machine 1 has a start and stop switch 111; a handle 2 is fixedly connected to the feed pipe 11; a lower semi-ring shell 31 is fixedly connected to the handle 2; an upper semi-ring shell 32 is rotatably connected to the handle 2, and the upper semi-ring shell 32 and the lower semi-ring shell 31 are initially tightly fitted to each other and form a complete annular shell; a torsion spring 33 is fixedly connected between the upper semi-ring shell 32 and the lower semi-ring shell 31; a pressure plate 321 is fixedly connected to the upper semi-ring shell 32; an arc tube 12 is fixedly connected to the lower semi-ring shell 31, and another arc tube 12 is fixedly connected to the upper semi-ring shell 32 The arc tubes 12 are connected to each other, and a telescopic folding structure is provided between the connecting areas of the two arc tubes 12; the arc tube 12 in the lower semi-ring shell 31 is connected to the feeding pipe 11; two nozzles 14 are slidably connected in the lower semi-ring shell 31; the other two nozzles 14 are slidably connected in the upper semi-ring shell 32; a telescopic tube 13 is connected between each of the two arc tubes 12 and the corresponding nozzle 14; two adjustable pitch screws 41 are rotatably connected in the lower semi-ring shell 31, and the adjustable pitch screws 41 are screwed to the corresponding nozzles 14 through threads. ; Two adjustable pitch screws 41 are also rotatably connected in the upper semi-ring shell 32, and the adjustable pitch screws 41 are screwed to the corresponding nozzles 14 through threads; a bevel gear 42 is fixed to each adjustable pitch screw 41; a semi-ring bevel rack 43 is slidably connected to the lower semi-ring shell 31; a semi-ring bevel rack 43 is also slidably connected to the upper semi-ring shell 32, and an anti-slip stripe structure is provided on the outer surface of the semi-ring bevel rack 43; the two semi-ring bevel racks 43 are respectively meshed with the corresponding bevel gears 42; each nozzle 14 is rotatably connected to a roller 15.

[0019] like Figure 2 and Figure 3 As shown, a semi-annular baffle 34 is fixedly connected to the left and right sides of the lower semi-annular housing 31 ; and a semi-annular baffle 34 is also fixedly connected to the left and right sides of the upper semi-annular housing 32 .

[0020] The use steps of the continuous spraying machine for surface coating of stainless steel pipes provided by the present invention are as follows: first, the user presses down the pressing plate 321 to drive the upper semi-ring shell 32 to rotate upward and leave the lower semi-ring shell 31, and at the same time, the upper semi-ring shell 32 drives the torsion spring 33 to twist, so that an opening appears between the rear sides of the upper semi-ring shell 32 and the lower semi-ring shell 31, and at the same time, the arc tube 12 in the upper semi-ring shell 32 rotates upward with the upper semi-ring shell 32, and the telescopic folding structure between the two arc tubes 12 is compressed. The user relies on the opening to cover the upper semi-ring shell 32 and the lower semi-ring shell 31 on the outside of the target stainless steel pipe guardrail, and then the user releases the pressing plate 321, and the twisted torsion spring 33 is used to carry The upper half ring shell 32 is rotated downward to reset and again close to the lower half ring shell 31. The upper half ring shell 32 and the lower half ring shell 31 together form an annular shell surrounded by the outside of the stainless steel pipe guardrail. Then the user slides the two half ring bevel racks 43 in the same direction synchronously. The half ring bevel racks 43 engage with all the bevel gears 42 connected to them to drive the pitch adjusting screw 41 to rotate. The pitch adjusting screw 41 drives the nozzle 14 and the roller 15 connected to it to extend toward the surface of the stainless steel pipe guardrail until all the rollers 15 are close to the surface of the stainless steel pipe guardrail, indicating that at this time, the distances between all the nozzles 14 and the surface of the stainless steel pipe guardrail are the same, and all the nozzles 14 are surrounded by the outside of the stainless steel pipe guardrail.

[0021] Afterwards, the user presses the start-stop switch 111 to start the mobile sprayer 1 to work. The mobile sprayer 1 continuously conveys the anti-corrosion paint to the inside of the two arc-shaped tubes 12 through the feed pipe 11. The anti-corrosion paint then flows through each telescopic tube 13 and is sprayed outwardly onto the surface of the stainless steel pipe guardrail through the nozzle 14. At the same time, the user pulls the handle 2 to drive all the nozzles 14 and all the rollers 15 in the upper semi-ring shell 32 and the lower semi-ring shell 31 to move axially along the outer surface of the stainless steel pipe guardrail, so as to evenly spray the anti-corrosion paint on various areas of the outer surface of the stainless steel pipe guardrail, reducing the waste caused by the empty spraying of the anti-corrosion paint, and most of the sputtered anti-corrosion paint can be intercepted in time by the lower semi-ring shell 31, the upper semi-ring shell 32 and the semi-annular baffles 34 on both sides, thereby reducing the air pollution caused by the sputtered anti-corrosion paint diffusing into the air. Example 2

[0022] On the basis of Example 1, Figure 1-Figure 6As shown, in this embodiment, a suction pipe 311 is provided on the lower semi-ring shell 31, and the outlet end of the suction pipe 311 faces downward; a suction fan 312 is installed in the suction pipe 311; a lower semi-annular channel structure 3101 is provided in the lower semi-ring shell 31; the lower semi-annular channel structure 3101 of the lower semi-ring shell 31 is connected to the suction pipe 311; a plurality of lower suction hole structures 3102 are provided on the inner surface of the lower semi-ring shell 31; all the lower suction hole structures 3102 are connected to the lower semi-annular channel structure 3101; an upper semi-annular channel structure 3101 is provided in the upper semi-ring shell 32; 201; the upper semi-annular channel structure 3201 is connected to the lower semi-annular channel structure 3101; a plurality of upper suction hole structures 3202 are provided on the inner surface of the upper semi-annular shell 32; all the upper suction hole structures 3202 are connected to the upper semi-annular channel structure 3201; all the lower suction hole structures 3102 are respectively distributed on the left side of the lower semi-annular shell 31 and the right side of the lower semi-annular shell 31 and close to the adjacent semi-annular baffle 34 area; all the upper suction hole structures 3202 are respectively distributed on the left side of the upper semi-annular shell 32 and the right side of the upper semi-annular shell 32 and close to the adjacent semi-annular baffle 34 area.

[0023] like Figure 1-Figure 7 As shown, a waste gas barrel 5 is fixedly connected to the handle 2 of the present embodiment; an inner channel structure 501 is provided in the waste gas barrel 5; a gas supply pipe 313 is commonly connected between the suction pipe 311 and the inner channel structure 501 of the waste gas barrel 5; an outer channel structure 502 is provided in the waste gas barrel 5, the outer channel structure 502 is surrounded by the outer side of the inner channel structure 501, and the outer channel structure 502 is connected to the end of the inner channel structure 501 away from the gas supply pipe 313; a plurality of air outlet structures 503 connected to the outer channel structure 502 are provided on the waste gas barrel 5; a filter screen 51 is fixedly connected in the outer channel structure 502 of the waste gas barrel 5; an electric heater 52 is installed on the waste gas barrel 5.

[0024] When the nozzle 14 is spraying anti-corrosion paint on the surface of the stainless steel pipe guardrail, the suction fan 312 continuously generates suction force in the suction pipe 311 toward the lower semi-annular channel structure 3101 and the upper semi-annular channel structure 3201, so that the waste splashed outward from the surface of the stainless steel pipe guardrail is sucked into the adjacent lower semi-annular channel structure 3101 and upper semi-annular channel structure 3201 through the lower suction hole structure 3102 and the upper suction hole structure 3202 respectively, and the suction fan 312 then continuously discharges the sucked waste from the suction pipe 311 downward into the waste gas barrel 5.

[0025] The suction airflow continuously transports the waste material sputtered outward from the surface of the stainless steel pipe guardrail toward the inner channel structure 501 of the waste gas barrel 5. The waste material flows through the inner channel structure 501 and the outer channel structure 502 along with the suction airflow, and passes through the filter screen 51. The filter screen 51 intercepts and captures the waste material in the suction airflow, and the purification of the suction airflow is completed. Finally, the purified suction airflow is discharged from the waste gas barrel 5 through the air outlet structure 503, so that most of the waste material sputtered outward from the surface of the stainless steel pipe guardrail is uniformly collected, and the air pollution caused by a large amount of sputtered waste material diffused in the air is further reduced. When the weather is cold, the fluidity and viscosity of the anti-corrosion coating will be reduced. At this time, the user turns on the electric heater 52 to continuously heat the feed pipe 11 and the inside of the waste gas barrel 5, which can not only improve the fluidity and viscosity of the anti-corrosion coating in the feed pipe 11, but also improve the adhesion effect of the sputtered waste material on the filter screen 51 after entering the waste gas barrel 5, thereby improving the purification efficiency of the suction airflow.

[0026] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A continuous spraying machine for coating on the surface of a stainless steel pipe, comprising: a mobile spraying machine (1); A start / stop switch (111) for controlling the operation of the mobile spraying machine (1) is installed on the material delivery pipe (11); a handle (2) is fixedly connected to the material delivery pipe (11); It is characterized in that Also includes a lower half ring housing (31); A lower semi-ring shell (31) is fixedly connected to the handle (2); an upper semi-ring shell (32) is rotatably connected to the handle (2), and the upper semi-ring shell (32) and the lower semi-ring shell (31) initially form a complete annular shell; a torsion spring (33) is fixedly connected between the upper semi-ring shell (32) and the lower semi-ring shell (31); a pressure plate (321) for controlling the opening and closing of the upper semi-ring shell (32) and the lower semi-ring shell (31) is fixedly connected to the upper semi-ring shell (32); an arc tube (12) is fixedly connected in the lower semi-ring shell (31); an arc tube (12) is also fixedly connected in the upper semi-ring shell (32); the two arc tubes (12) are connected to each other, and a telescopic folding structure is provided between the areas where the two arc tubes (12) are connected to each other; the arc tube (12) in the lower semi-ring shell (31) is connected to the feed pipe (11); a plurality of sliding connections are provided in the lower semi-ring shell (31); The upper half ring housing (32) is also slidably connected to two nozzles (14); a telescopic tube (13) is connected between the arc tube (12) and the corresponding nozzle (14); the lower half ring housing (31) is rotatably connected to at least two pitch-adjusting screws (41), and the pitch-adjusting screws (41) are screwed to the corresponding nozzles (14) through threads; the upper half ring housing (32) is also rotatably connected to at least two pitch-adjusting screws (41), and the pitch-adjusting screws (41) are screwed to the corresponding nozzles (14) through threads; each pitch-adjusting screw (41) is fixedly connected to a bevel gear (42); a semi-ring bevel rack (43) is slidably connected to the lower half ring housing (31); a semi-ring bevel rack (43) is also slidably connected to the upper half ring housing (32); and the two semi-ring bevel racks (43) are respectively meshed with the corresponding bevel gears (42).

2. A stainless steel pipe surface coating continuous spraying machine according to claim 1, characterized in that: A roller (15) is rotatably connected to the spray head (14).

3. A stainless steel pipe surface coating continuous spraying machine according to claim 1, characterized in that: A semi-annular baffle plate (34) is fixedly connected to the left and right sides of the lower semi-annular shell (31); and a semi-annular baffle plate (34) is also fixedly connected to the left and right sides of the upper semi-annular shell (32).

4. A stainless steel pipe surface coating continuous spraying machine according to claim 1, characterized in that: The outer surface of the semi-annular cone rack (43) is provided with an anti-slip stripe structure.

5. A stainless steel pipe surface coating continuous spraying machine according to claim 3, characterized in that: A suction pipe (311) is provided on the lower semi-ring shell (31), and the outlet end of the suction pipe (311) faces downward; a suction fan (312) is installed in the suction pipe (311); a lower semi-ring channel structure (3101) connected to the suction pipe (311) is provided in the lower semi-ring shell (31); and a plurality of lower suction hole structures (3102) connected to the lower semi-ring channel structure (3101) are provided on the inner surface of the lower semi-ring shell (31).

6. A stainless steel pipe surface coating continuous spraying machine according to claim 5, characterized in that: An upper semi-annular channel structure (3201) connected to the lower semi-annular channel structure (3101) is provided in the upper semi-annular shell (32); and a plurality of upper suction hole structures (3202) connected to the upper semi-annular channel structure (3201) are provided on the inner surface of the upper semi-annular shell (32).

7. A stainless steel pipe surface coating continuous spraying machine according to claim 6, characterized in that: All lower suction hole structures (3102) are respectively distributed on the left side of the lower semi-annular shell (31) and the right side of the lower semi-annular shell (31) and close to the adjacent semi-annular baffle (34) area; all upper suction hole structures (3202) are respectively distributed on the left side of the upper semi-annular shell (32) and the right side of the upper semi-annular shell (32) and close to the adjacent semi-annular baffle (34) area.

8. A stainless steel pipe surface coating continuous spraying machine according to claim 7, characterized in that: A waste gas barrel (5) is fixedly connected to the handle (2); an inner channel structure (501) is provided in the waste gas barrel (5); and a gas delivery pipe (313) is connected between the suction pipe (311) and the inner channel structure (501) of the waste gas barrel (5).

9. A stainless steel pipe surface coating continuous spraying machine according to claim 8, characterized in that: An outer channel structure (502) is provided in the waste gas barrel (5), the outer channel structure (502) surrounds the outer side of the inner channel structure (501), and the outer channel structure (502) is connected to the inner channel structure (501); a plurality of air outlet structures (503) connected to the outer channel structure (502) are provided on the waste gas barrel (5); and a filter screen (51) is fixedly connected to the outer channel structure (502) of the waste gas barrel (5).

10. A continuous spraying machine for coating on the surface of a stainless steel pipe according to claim 8 or 9, characterized in that: An electric heater (52) is installed on the waste gas barrel (5).

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