CN214637471U

CN214637471U - Automatic spraying machine

Info

Publication number: CN214637471U
Application number: CN202023264257.8U
Authority: CN
Inventors: 姚坤; 龙国棋
Original assignee: Chongqing Qihang Spraying Equipment Co ltd
Current assignee: Chongqing Qihang Spraying Equipment Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-09
Anticipated expiration: 2030-12-29

Abstract

An automatic spraying machine comprises a coating pipe, an air pipe, a pneumatic control spray gun, a guide pipe, a nozzle and a machine case, wherein a support rod is fixed on the machine case, an installation plate is arranged at the upper part of the support rod, a second driving motor and a rotary joint are arranged on the installation plate, the second driving motor is in transmission connection with the connection pipe, one end of the rotary joint is connected with the connection pipe, and the other end of the rotary joint is connected with a coating outlet of the pneumatic control spray gun through the guide pipe; the other end of the connecting pipe is connected with the spray rod; the spray rod is provided with a nozzle and a spray pipe, the nozzle is connected with one end of the spray pipe through a conduit, and the nozzle is connected with the other end of the spray pipe; the utility model has the beneficial technical effects that: the spraying machine equipment can replace manual spraying in the pipeline and can spray the pipeline at 360 degrees, and has the characteristics of convenient use and high working efficiency; the airless spraying mode is adopted, the high-pressure gas and the coating are not mixed, and the coating sprayed on the pipeline is not doped with gas, so that the coating surface is uniform in thickness and free of granular sensation.

Description

Automatic spraying machine

Technical Field

The utility model relates to a spraying equipment technical field specifically is an automatic spraying machine.

Background

The purpose of corrosion prevention of construction pipelines is to slow down or prevent the pipelines made of metal and nonmetal materials from being corroded and deteriorated under the chemical action of internal and external media or by the metabolic activity of microorganisms. At present, the anticorrosion engineering of the construction pipeline is basically carried out by adopting a spraying mode, in the spraying process, the air spraying or airless spraying mode is adopted, so that the coating is conveyed to a spray gun through a guide pipe, then a worker holds the spray gun to move in the pipeline and spray the pipeline, and the coating is dispersed into tiny fog drops under the action of pressure and is coated on the surface of the pipeline. However, the spraying mode of manually holding the spray gun by hand has the defects of low working efficiency and low speed, and the coating can cause certain harm to the health of constructors.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic spraying machine, it can replace the manual work to pipeline spraying coating in the pipeline, has convenient to use, characteristics that work efficiency is high.

In order to realize the purpose, the following technical scheme is provided:

an automatic spraying machine comprises a coating pipe, an air pipe, a pneumatic control spray gun, a guide pipe and a nozzle, wherein the coating pipe is connected with a coating inlet of the pneumatic control spray gun, and the air pipe is connected with an air inlet of the pneumatic control spray gun; the device also comprises a case, wherein a wheel shaft and a first driving motor in transmission connection with the wheel shaft are rotatably arranged in the case, and two ends of the wheel shaft are provided with driving wheels; a supporting rod is fixed on the case, an installation plate is arranged at the upper part of the supporting rod, a second driving motor and a rotary joint are arranged on the installation plate, the second driving motor is in transmission connection with a connecting pipe, one end of the rotary joint is connected with the connecting pipe, and the other end of the rotary joint is connected with a coating outlet of the pneumatic control spray gun through a guide pipe; the other end of the connecting pipe is connected with the spray rod; the spray rod is provided with a nozzle and a spray pipe, the nozzle is connected with one end of the spray pipe through a conduit, and the nozzle is connected with the other end of the spray pipe.

The utility model discloses a theory of operation and theory of use lie in: the device can assist the coating pressurizing equipment to use, the coating pressurizing equipment pressurizes the coating, the coating under high pressure is conveyed to a coating inlet of the spray gun through the coating pipe, one end of the air pipe is communicated with the air pump, the other end of the air pipe is communicated with an air inlet of the spray gun, the air pump provides compressed air to drive the piston in the spray gun to pressurize the coating again and convey the coating to the spray pipe on the spray rod, the high-pressure coating is atomized through the spray nozzle, and finally the coating is uniformly sprayed on the pipe wall. In the spraying process, the first driving motor is controlled to operate to drive the wheel shaft and the driving wheel to rotate so as to drive the spraying machine to advance or retreat in the pipeline, and in the advancing process of the spraying machine, the second driving motor can drive the spray rod and the spray pipe to perform high-speed centrifugal spraying so that the coating on the inner wall of the pipeline is uniform.

The utility model has the beneficial technical effects that: the spraying machine equipment can replace manual spraying in the pipeline, can spray the pipeline by 360 degrees through the rotating spray pipe, and has the characteristics of convenient use and high working efficiency; the airless spraying mode is adopted, the high-pressure gas and the coating are not mixed, and the coating sprayed on the pipeline is not doped with gas, so that the coating surface is uniform in thickness and free of granular sensation.

Drawings

Fig. 1 is a schematic structural diagram of the automatic coating machine of the present invention.

Fig. 2 is a side view schematic diagram of the automatic spraying machine of the present invention.

Fig. 3 is a schematic view of an exploded structure of the automatic spraying machine of the present invention.

Fig. 4 is an exploded view of the automatic coating machine of the present invention at another angle.

In the figure: 1. a coating tube; 2. an air tube; 3. a pneumatic control spray gun; 4. a conduit; 5. a nozzle; 6. a chassis; 7. a wheel axle; 8. a first drive motor; 9. a drive wheel; 10. a support bar; 11. mounting a plate; 12. a second drive motor; 13. a swivel joint; 14. a connecting pipe; 15. a spray rod; 16. a nozzle; 17. a lifting motor; 18. a control cabinet; 19. a controller; 20. a first clamping block; 21. a second clamp block; 22. rotating the rod; 23. a pneumatic solenoid valve; 24. a pressure relief valve; 25. a handrail frame; 26. an L-shaped bracket; 27. a travel switch; 28. a rotary switch; 29. a paint switch; 30. a traveling speed regulating switch; 31. a paint speed regulation switch; 32. a threading tube; 33. a handpiece.

Detailed Description

The following describes an automatic coating machine according to the present invention with reference to the accompanying drawings and specific embodiments.

The device can assist the use of coating pressurizing equipment, and is suitable for the airless spraying of the inner walls of large-scale pipeline containers such as petroleum, natural gas, tap water, petroleum drill rods and the like. The basic principle of airless spraying is that a pressure pump is used for pressurizing the coating, the high-pressure coating enters air through a nozzle, and the high-pressure coating is immediately and violently expanded and broken into superfine mist to be directly sprayed on the surface of a workpiece. The difference with air spraying is that the compressed air is not sprayed on the surface of the workpiece together with the coating, and the coating has the advantages of uniform coating surface and no granular feeling.

As shown in fig. 1, 2, 3 and 4, an automatic coating machine comprises a coating pipe 1, an air pipe 2, an air-controlled spray gun 3, a conduit 4 and a nozzle 5, wherein the coating pipe 1 is connected with a coating inlet of the air-controlled spray gun 3, and the air pipe 2 is connected with an air inlet of the air-controlled spray gun 3; the device is characterized by further comprising a case 6, wherein a wheel shaft 7 and a first driving motor 8 in transmission connection with the wheel shaft 7 are rotatably arranged in the case 6, and driving wheels 9 are mounted at two ends of the wheel shaft 7; a supporting rod 10 is fixed on the case 6, an installation plate 11 is arranged on the upper portion of the supporting rod 10, a second driving motor 12 and a rotary joint 13 are arranged on the installation plate 11, the second driving motor 12 is in transmission connection with a connecting pipe 14, one end of the rotary joint 13 is connected with the connecting pipe 14, and the other end of the rotary joint is connected with a coating outlet of the pneumatic control spray gun 3 through a guide pipe 4; the other end of the connecting pipe 14 is connected with a spray rod 15; the spray rod 15 is provided with a nozzle and a spray pipe 16, the nozzle is connected with one end of the spray pipe 16 through a conduit 4, and the nozzle 5 is connected with the other end of the spray pipe 16.

The coating is pressurized by a coating pressurizing device, the coating under high pressure is communicated with a coating inlet of a pneumatic control spray gun 3 through a coating pipe 1, one end of an air pipe 2 is communicated with an air pump, the other end of the air pipe is communicated with air inlets of the spray guns, the air pump provides compressed air to drive a piston in the spray gun to pressurize the coating again and convey the coating to a spray pipe 16 on a spray rod 15, the high-pressure coating enters air through a spray nozzle 5, and the high-pressure coating is immediately and violently expanded and broken into superfine mist and finally evenly sprayed on the pipe wall. In the spraying process, the first driving motor 8 is controlled to operate, the driving wheel shaft 7 and the driving wheel 9 are driven to rotate, so that the spraying machine is driven to move forwards or backwards in the pipeline, and in the moving process of the spraying machine, the second driving motor 12 can drive the spray rod 15 and the spray pipe 16 to perform high-speed centrifugal spraying, so that the inner wall of the pipeline is uniformly coated.

The first driving motor 8 is fixed at the bottom in the case 6 through bolts, and the second driving motor 12 is fixed on the mounting plate 11 through bolts. The swivel joint 13 is fixed to the mounting plate 11 on the side of the second drive motor 12 via an L-shaped bracket 26. The wheel shaft 7 is fixed on the case 6 through bearings on two sides of the case 6, and the driving wheel 9 is fixedly connected with the wheel shaft 7 through bolts. The support rod 10 is fixed to the front of the cabinet 6 by bolts, and the connection pipe 14 is connected to the head key of the second driving motor 12 and can rotate with the rotation of the second driving motor 12. The connecting pipe 14 is connected with the spray rod 15 through threads. The rotary joint 13 is a joint for conveying media, two precision bearings are arranged in the rotary joint, the rotary joint is stable and durable in operation, firm and flexible, and small in friction coefficient, so that the rotary joint can operate at high speed, and a sealing surface and a sealing ring are made of special materials, so that the rotary joint is wear-resistant, long in service life, corrosion-resistant and free of leakage. The high-pressure paint enters from the rear of the swivel joint 13 and enters into the connecting pipe 14 from the front of the swivel joint 13. When the second driving motor 12 rotates, the rear portion of the swivel joint 13 is in a fixed state, and the front portion of the swivel joint 13 rotates. The air control spray gun 3 is fixed at the front part of the case 6 through bolts, and the air pipe 2 and the coating pipe 1 both penetrate through the case 6 to be connected with an air inlet and a coating inlet of the air control spray gun 3. In the construction operation, because the pipeline is longer, need drag very long coating pipe 1 and trachea 2, be equipped with threading pipe 32 at the rear portion of quick-witted case 6, coating pipe 1, trachea 2 are through threading pipe 32 entering quick-witted case 6.

In this embodiment, the pneumatic control spray gun 3 is a Yangtze river ZPQ3 type pneumatic control spray gun, the pressurizing device is a pressurizing pump or an airless spraying device, and the airless spraying device can be an AQ9C type airless spraying machine. The first driving motor 8 and the second driving motor 12 are 51K120RGU-CF type speed regulating motors additionally provided with NMRV30 worm gear type machine heads 33, and the axes of the motor rotating shafts are perpendicular to the axis of the wheel shaft 7 of the driving wheel 9 through worm gear transmission in the machine heads.

Further, as shown in fig. 1, 2, 3 and 4, the support rod 10 is a telescopic rod, and a lifting motor 17 is disposed at the bottom of the telescopic rod. A push rod of the lifting motor 17 is fixedly connected with the inner top of the telescopic rod in the telescopic rod; and starting the lifting motor 17, driving the telescopic rod to move up and down by utilizing the push rod, and adjusting the up-and-down position according to different calibers of the pipeline. In this embodiment, the lift motor 17 is a push rod motor with a stroke of 500MM 24VDC 20 MM/S500N.

Further, as shown in fig. 1, fig. 2, fig. 3, and fig. 4, a control cabinet 18 is disposed on the chassis 6, and the control cabinet 18 includes a bottom plate and a controller 19 fixed on the bottom plate. The controller 19 is provided with a manual switch. The upper edge of the case 6 is provided with a clamping strip, and the bottom edge of the control cabinet 18 is provided with a clamping groove matched with the clamping strip. The control cabinet 18 is clamped with the case 6 and is reinforced at the joint through bolts. The manual switches include a travel switch 27 for controlling the first driving motor 8, a rotation switch 28 for controlling the second driving motor 12, a paint switch 29 for controlling the paint filling, and a travel speed control switch 30 for adjusting the moving speed of the driving wheel 9 and a paint speed control switch 31 for adjusting the paint spraying speed. The controller 19 can also be a remote control switch controller 19 which can remotely control the walking of the first driving motor 8, the rotation of the second driving motor 12, the paint filling, and the adjustment of the moving speed of the driving wheel 9 and the paint spraying speed by wireless. The remote control spraying machine can completely replace manpower, the remote control spraying machine advances in the pipeline, the constructor is prevented from being polluted by paint mist splashing, the worry, the labor and the time are saved, and the working efficiency is improved. In this embodiment, the controller 19 is a cliff 220v wireless remote controller 19. Be equipped with the cabinet door on the switch board 18, the cabinet door passes through the hinge with switch board 18 and articulates, and the constructor of being convenient for opens switch board 18 and maintains, regulates and control the operation.

A through hole is arranged on the bottom plate, and a connecting wire of the controller 19 passes through the through hole to be connected with the first driving motor 8 and the second starting motor; the power and other control wires of the controller 19 extend from the conduit 32 to the exterior and are dragged along with the applicator.

Further, as shown in fig. 2, the nozzle 16 is fixed to the nozzle rod 15 by a holder; the clamping piece comprises a first clamping block 20 and a second clamping block 21, clamping grooves matched with the outer wall of the spray rod 15 are formed in the first clamping block 20 and the second clamping block 21, and the first clamping block 20 and the second clamping block 21 are connected through a rotary rod 22. The first clamping block 20 and the second clamping block 21 are respectively provided with a threaded through hole matched with the rotating rod 22, and the first clamping block 20 and the second clamping block 21 are fixedly connected by screwing the rotating rod 22. In this embodiment, the nozzle 16 is a high pressure resistant rigid tube and is fixed perpendicular to the nozzle rod 15. When the second driving motor 12 rotates, the spray rod 15 drives the spray pipe 16 to spray on the pipe wall in a 360-degree high-speed centrifugal mode, spraying efficiency is improved, the inner wall coating is uniform, the dry film state is high in smoothness, and coating is saved.

Further, as shown in fig. 3 and 4, a pneumatic solenoid valve 23 is connected to the air tube 2, and the pneumatic solenoid valve 23 is connected to the controller 19 through a wire. The pneumatic solenoid valve 23 blocks or leaks the exhaust hole by controlling the movement of the valve body under the control of the controller 19 to control the on-off of the spray gun, thereby realizing the effect of automatic spraying operation. In this embodiment, the pneumatic solenoid valve 23 is fixed in the cabinet 6 by screws.

Further, as shown in fig. 1, 2, 3, and 4, a relief valve 24 is provided on the nozzle 16, and a relief pipe interface is provided on the relief valve 24. The pressure relief pipe interface is used for connecting a pressure relief pipe. When the painting operation is completed, the pressure relief valve 24 is opened to release the pressure in the nozzle 16, and the residual paint is discharged through the pressure relief pipe.

Claims

1. An automatic spraying machine comprises a coating pipe (1), an air pipe (2), an air control spray gun (3), a guide pipe (4) and a nozzle (5), wherein the coating pipe (1) is connected with a coating inlet of the air control spray gun (3), and the air pipe (2) is connected with an air inlet of the air control spray gun (3); the device is characterized by further comprising a case (6), wherein an axle (7) and a first driving motor (8) in transmission connection with the axle (7) are rotatably arranged in the case (6), and driving wheels (9) are mounted at two ends of the axle (7); a supporting rod (10) is fixed on the case (6), an installation plate (11) is arranged on the upper portion of the supporting rod (10), a second driving motor (12) and a rotary joint (13) are arranged on the installation plate (11), the second driving motor (12) is in transmission connection with a connecting pipe (14), one end of the rotary joint (13) is connected with the connecting pipe (14), and the other end of the rotary joint is connected with a coating outlet of the pneumatic control spray gun (3) through a guide pipe (4); the other end of the connecting pipe (14) is connected with the spray rod (15); the spray rod (15) is provided with a nozzle and a spray pipe (16), the nozzle is connected with one end of the spray pipe (16) through a guide pipe (4), and the nozzle (5) is connected with the other end of the spray pipe (16).

2. The automatic coating machine according to claim 1, wherein the support bar (10) is a telescopic bar, and a lifting motor (17) is provided at the bottom of the telescopic bar.

3. An automatic spraying machine according to claim 1 or 2, characterized in that the cabinet (6) is provided with a control cabinet (18), the control cabinet (18) comprising a base plate and a controller (19) fixed to the base plate.

4. The automatic spraying machine according to claim 1 or 2, characterized in that the nozzle (16) is fixed to the nozzle bar (15) by means of a clamp; the clamping piece comprises a first clamping block (20) and a second clamping block (21), clamping grooves matched with the outer wall of the spray rod (15) are formed in the first clamping block (20) and the second clamping block (21), and the first clamping block (20) is connected with the second clamping block (21) through a rotary rod (22).

5. An automatic spraying machine according to claim 3, characterized in that the nozzle (16) is fixed to the spray bar (15) by means of a clamp; the clamping piece comprises a first clamping block (20) and a second clamping block (21), clamping grooves matched with the outer wall of the spray rod (15) are formed in the first clamping block (20) and the second clamping block (21), and the first clamping block (20) is connected with the second clamping block (21) through a rotary rod (22).

6. The automatic spraying machine according to claim 1, 2 or 5, characterized in that a pneumatic solenoid valve (23) is connected to the air pipe (2), and the pneumatic solenoid valve (23) is connected to the controller (19) through a wire.

7. The automatic spraying machine according to claim 3, characterized in that a pneumatic solenoid valve (23) is connected to the air pipe (2), and the pneumatic solenoid valve (23) is connected to the controller (19) through a wire.

8. The automatic spraying machine according to claim 4, characterized in that a pneumatic solenoid valve (23) is connected to the air pipe (2), and the pneumatic solenoid valve (23) is connected to the controller (19) through a wire.

9. An automatic spraying machine as claimed in claim 1, 2, 5, 7 or 8, characterised in that the nozzle (16) is provided with a pressure relief valve (24), the pressure relief valve (24) being provided with a pressure relief tube interface.

10. An automatic coating machine according to claim 3, characterized in that the nozzle (16) is provided with a pressure relief valve (24), the pressure relief valve (24) being provided with a pressure relief tube interface.