CN115870132A

CN115870132A - Spraying robot capable of intelligently processing harmful gas and working method thereof

Info

Publication number: CN115870132A
Application number: CN202211448743.6A
Authority: CN
Inventors: 严艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-31

Abstract

The invention relates to a spraying robot for intelligently processing harmful gas and a working method thereof. The purifying device comprises a first purifier, a ventilation pipe, a purifying fan, an air quality detecting device, at least one third purifier, a rotating frame, a first motor, a protective shell, a first communication pipe, an insertion opening and a timer. The external gas containing device comprises a gas box, a pushing cylinder, a piston head, two ventilation valves, an exhaust valve, a second purifier and an exhaust pipe. The control system is connected with the purification device, the induction device, the external gas containing device, the spraying manipulator and the clamping device. The invention solves the technical problems of how to purify paint mist and harmful gas generated by spraying and how to prevent the harmful gas from leaking when a workpiece is replaced by arranging the external gas containing device and the purifying device.

Description

Spraying robot capable of intelligently processing harmful gas and working method thereof

Technical Field

The invention relates to the technical field of spraying equipment, in particular to a spraying robot for intelligently processing harmful gas and a working method thereof.

Background

The spray coating is applied to the surface of the object to be coated by dispersing into uniform and fine droplets by means of a spray gun or a disc atomizer by means of pressure or centrifugal force. It can be divided into air spraying, airless spraying, electrostatic spraying and various derivatives of the above basic spraying forms, such as high flow low pressure atomized spraying, thermal spraying, automatic spraying, multiple spray groups, etc.

In the prior art, paint mist and harmful gas can be generated in the spraying process, and the harm can be caused to the body of field workers. Therefore, a spraying robot that intelligently handles harmful gas is required.

Disclosure of Invention

The invention aims to solve the technical problems of purifying paint mist and harmful gas generated by spraying and preventing the harmful gas from leaking when a workpiece is replaced, and provides a spraying robot for intelligently treating the harmful gas and a working method thereof.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a spraying robot of intelligent treatment harmful gas, includes spraying case, spraying manipulator, purifier, clamping device, external gaseous accommodate device, control system. The spraying case top is provided with puts the mouth into, puts and is provided with the chamber door in the mouth, and the chamber door is connected with induction system. The clamping device is arranged in the spraying box and used for clamping the workpiece and is positioned below the placing opening. The spraying manipulator is arranged in the spraying box and is positioned on the side of the workpiece. The purification device comprises a first purifier, a ventilation pipe, a purification fan and an air quality detection device. Both ends of the vent pipe are communicated with the interior of the spraying box, and the vent pipe is a hose. The first purifier is arranged at the air inlet end of the ventilation pipe. The purification fan is arranged in the ventilation pipe. The external gas containing device comprises a gas box, a pushing cylinder, a piston head, two ventilation valves, an exhaust valve, a second purifier and an exhaust pipe. The gas box is arranged outside the spraying box. The vent tube passes through the gas box. The two ventilation valves are arranged in the ventilation pipe and are respectively positioned in the communication ports of the ventilation pipe and the gas box. One end of the exhaust pipe is communicated with the inside of the gas box, and the other end of the exhaust pipe is communicated with the outside for communicating the gas box with the outside. The exhaust valve is arranged in the exhaust pipe. The second purifier is arranged in the exhaust pipe and is positioned on one side, far away from the gas box, of the exhaust valve. The piston head is arranged in the gas box in a sliding mode and is positioned on the same side of the ventilating pipe and the exhaust pipe. The telescopic end of the pushing cylinder is connected with the piston head. The control system is connected with the purification device, the induction device, the external gas containing device, the spraying mechanical arm and the clamping device. The second purifier includes a second activated carbon plate. The purification device comprises at least one third purifier, a rotating frame, a first motor, a protective shell, a first communication pipe, an insertion opening and a timer. The protective shell is arranged above the spraying box and is fixed with the spraying box through screws. The vertical setting of first communicating pipe, its lower part runs through the protecting crust and extends to the protecting crust inside, and its upper portion is connected through the air inlet end of screw thread and ventilation pipe. First motor sets up in the protecting crust top, and its pivot runs through the protecting crust downwards and extends to inside the protecting crust. The first purifier is arranged in the protective shell and is positioned below the first communicating pipe. The third clarifier and first clarifier set up around the pivot of first motor, and are connected with the pivot of first motor through the rotating turret, and the third clarifier cooperatees with first connecting pipe. The insertion hole is arranged at the lower part of the protective shell, penetrates through the spraying box downwards and is used for communicating the interior of the protective shell with the interior of the spraying box. The timer is connected with the control system. The third clarifier cooperatees with first communicating pipe, can communicate each other under the effect of first motor.

The staff opens the chamber door, triggers induction system, and control system closes discharge valve, opens two vent valves, and control push cylinder contracts, and push cylinder drives the piston head and removes, makes the outside air get into from putting into the mouth, prevents that the harmful gas of spraying incasement from revealing. A worker puts a workpiece into the spraying box, the workpiece is clamped by the clamping device, then the box door is closed, and when the induction device senses that the box door is closed, the control system controls the pushing cylinder to stop moving. And then controlling the spraying manipulator to spray the surface of the workpiece, starting the purifying fan after the spraying manipulator is started, forming circulating airflow in the spraying box through the ventilation pipe, and removing paint mist and harmful gas in the airflow through the first purifier. When the spraying manipulator stops and the air quality detection device detects that the concentration of the harmful gas is lower than a threshold value, the purification fan is controlled to stop. And then the control system closes the two vent valves, opens the exhaust valve, controls the push cylinder to extend, and drives the piston head to move so that the gas in the gas box is discharged to the outside after passing through the second purifier. Set up purifier and external gaseous accommodate device and can purify paint mist and harmful gas that the spraying produced and prevent that harmful gas from letting in the mouth when changing the work piece and revealing. When purifying the fan and starting, start the time-recorder, when purifying time reaches the setting value, the harmful gas concentration that air quality detection device detected is higher than the threshold value, then after this purification process is accomplished, rotate through the first motor of control system control, drive the rotating turret and rotate, the rotating turret drives first clarifier and rotates certain angle and break away from with first communicating pipe, thereby it is connected with first communicating pipe to drive third clarifier rotation certain angle, realize the technological effect that the clarifier was changed, purifier's purifying effect is improved.

Further, first clarifier includes first purge tube, first coating cloud absorption cotton, first active carbon board, first heating wire. First purge tube is vertical to be set up in first communicating pipe below, and first purge tube suits with the inserted hole. The first paint mist adsorption cotton is arranged in the first purifying tube and is flame-retardant cotton. The first activated carbon plate is arranged in the inner wall of the first purifying pipe and is positioned above the first paint mist adsorption cotton. The first heating wire is arranged in the first purifying tube and surrounds the first paint mist adsorption cotton. The third purifier comprises a third purifying pipe, third paint mist adsorption cotton, a third activated carbon plate and a third electric heating wire. The third purge tube is vertically arranged in the protective shell, and the third purge tube is adapted to the insertion hole. The third paint mist adsorption cotton is arranged in the third purifying pipe and is flame-retardant cotton. The third activated carbon plate is arranged in the third purifying tube and is positioned above the third paint mist adsorption cotton. The third heating wire is arranged in the inner wall of the third purifying pipe and surrounds the third paint mist adsorption cotton. The purification device comprises a plurality of air blowing holes. The plurality of blowholes are arranged on the inner wall of the spraying box and are positioned at one side of the workpiece far away from the spraying manipulator, and the plurality of blowholes are communicated with the air outlet end of the ventilation pipe.

First coating cloud adsorbs the coating cloud in the cotton can adsorbing the air current, then adsorb the cotton through first coating cloud of first heating wire heating, solvent volatilizees with higher speed and the evaporation of water, makes first coating cloud adsorb cotton absorbent coating cloud rapid draing, prevents to paint too much back drippage, has improved first coating cloud and has adsorbed cotton adsorption strength and the filter effect to the coating cloud, prevents that the coating cloud from passing first coating cloud and adsorbing cotton solidification to first active carbon plate surface, with the micropore blocking on the first active carbon plate. And first heating wire can heat the air current, makes the hot gas flow blow off from a plurality of blowholes, heats the work piece, improves the drying rate of spraying paint, can also prevent that the coating cloud from attaching to the work piece back. When the purification fan starts, the first heating wire is started, and when the purification fan is closed, the first heating wire is closed.

Further, purifier includes a plurality of sliding seats, a plurality of first slider, supports gland, telescopic cylinder. The sliding seats are arranged on the rotating frame, a plurality of first slideways are arranged on the side faces of the sliding seats, the first slideways are T-shaped slideways and are vertically arranged, first springs are arranged in the first slideways, and the first springs are in a compressed state. The first sliding blocks are arranged in the first sliding ways respectively and are fixed with the third purifier and the first purifier respectively, and the first sliding blocks are located above the corresponding first springs. The upper part of the first purifying pipe is provided with a first electric contact which is connected with the first electric heating wire, and the lower part of the first purifying pipe penetrates through the insertion opening and enters the spraying box. The abutting cover is arranged on the lower portion of the first communicating pipe, the cover is arranged on the upper portion of the first purifying pipe, a second electrical contact is arranged inside the abutting cover, the second electrical contact is connected with the first electrical contact, and the second electrical contact is connected with a power supply. And a third electric contact is arranged at the upper part of the third purifying pipe and is connected with a third heating wire. The telescopic cylinder is vertically arranged in the protective shell, and the lower telescopic end of the telescopic cylinder is connected with the abutting cover.

The extension of the telescopic cylinder is controlled to drive the pressing cover to move downwards, the first spring is compressed through the first sliding block, and after the pressing cover is connected with the first purifying pipe, the second electric contact is connected with the first electric contact, so that the first electric heating wire is connected with the power supply and can be controlled by the control system. Then the pressing cover continues to push the first purifying pipe downwards, so that the lower part of the first purifying pipe passes through the insertion hole to enter the spraying box, and paint mist is prevented from entering the protective shell to pollute the standby third purifier.

Further, purifier includes protection stopper, liftout jar, is provided with on the protecting crust and changes the mouth. The protective plug is arranged in the replacing opening. The ejection cylinder is vertically arranged below the replacing port and is positioned below the third purifier. The first slide way extends upwards to the upper part of the sliding seat. The lower part of the first spring is fixed with the sliding seat, and the upper part of the first spring is abutted against the first sliding block.

When the used first purifier or the used third purifier needs to be replaced, the protective plug is opened, then the first purifier or the third purifier is rotated to the position below the replacement opening through the first motor, then the ejection cylinder is controlled to extend, the first purifier or the third purifier is ejected out of the replacement opening, and the first sliding block is separated from the first spring. Then a new purifier is put into the protective shell through the replacing port, and the first sliding block on the surface of the new purifier enters the first slideway and is connected with the first spring. The ejector cylinder is arranged for facilitating the replacement of the purifier.

Further, purifier includes the surge drum, and the upper portion of surge drum is the opening, and the surge drum is vertical to be set up in first purge tube below, and the external diameter of surge drum is the same with the internal diameter of first purge tube, and the upper portion of surge drum is provided with the compression piece, and the top surface of compression piece is the spill cambered surface, is provided with a plurality of collection powder holes on the compression piece. The first purifier comprises a first positioning piece and a first elastic framework, the first positioning piece is arranged in the first purifying pipe and is positioned below the first activated carbon plate, and a plurality of first ventilation holes are formed in the first positioning piece. The first elastic framework is made of memory metal materials, the first elastic framework is fixed with the first positioning sheet, and the first elastic framework is filled with first paint mist adsorption cotton. The third purifier comprises a third positioning piece and a third elastic framework, the third positioning piece is arranged in the third purifying pipe and is positioned below the third activated carbon plate, and the third positioning piece is provided with a plurality of third ventilation holes. The third elastic framework is made of memory metal materials, the third elastic framework is fixed with the third positioning piece, and third paint mist adsorption cotton is filled in the third elastic framework.

After purification process, control system control telescopic cylinder extension drives first purge tube downstream, makes first elasticity skeleton, first coating cloud adsorb cotton and the surge drum produces the extrusion, then control telescopic cylinder is reciprocal flexible, and the cotton is adsorbed to first elasticity skeleton of compression and first coating cloud, and it is smashed into the powder to adsorb cotton interior dry paint with first elasticity skeleton and first coating cloud, makes the paint powder get into in the surge drum through powder collection hole. The paint in the first elastic framework and the first paint mist adsorption cotton is cleaned, the adsorption effect of the first paint mist adsorption cotton on the paint mist can be improved, the service life of the first paint mist adsorption cotton is prolonged, and the replacement frequency of the purifier is reduced. Set up first elastic framework, can improve the drying efficiency that first coating cloud adsorbs cotton adsorbed coating cloud through its heat conductivity, can also adsorb cotton to first coating cloud and stereotype.

Further, the spraying manipulator comprises a nozzle, a lifting cylinder and a transverse moving device, and the transverse moving device is arranged inside the spraying box. The lifting cylinder is vertically arranged inside the spraying box, and the bottom of the lifting cylinder is connected with the transverse moving device. The nozzle is fixed at the upper telescopic end of the lifting cylinder and faces the workpiece. The purifying device comprises an auxiliary box, the auxiliary box is arranged on one side, away from the workpiece, of the spraying manipulator and is communicated with the middle of the collecting barrel, a plurality of auxiliary holes are formed in the side face, facing the workpiece, of the auxiliary box, the auxiliary holes are communicated with the inner portion of the auxiliary box, are arranged along the inner walls and the top plates of the two sides of the spraying box, are located on the outer sides of the spraying manipulator and the workpiece, and are matched with the plurality of blowing holes. The air quality detection device is embedded on the inner side wall of the spraying box. The first purifying pipe is matched with the plurality of air blowing holes. The auxiliary holes are matched with the air blowing holes to form an air wall close to the inner wall of the spraying box. First purge tube cooperatees with a plurality of blowholes, and first purge tube is close to spraying case middle part, can improve the flow range of air current.

In the spraying process, the extension of the telescopic cylinder is controlled, the first purifying pipe is driven to move downwards to be communicated with the collecting barrel, air flow blown out from the blowing hole flows to a plurality of auxiliary holes from the spraying mechanical arm and the outer side of the workpiece under the blocking of the workpiece, then the air flow sequentially passes through the auxiliary box and the collecting barrel to enter the first purifying pipe, so that an air wall for coating the spraying mechanical arm and the workpiece is formed, the air flow is prevented from influencing the spraying process, and paint mist is prevented from being attached to the inner wall of the cavity quality detecting device and the spraying box. When the spraying manipulator stops, the telescopic cylinder is controlled to contract, the first purifying pipe is driven to move upwards to be separated from the collecting barrel, so that air flow enters from the lower port of the first purifying pipe, the flowing range of the air flow can be improved, and the purifying effect of the purifying device is improved.

Further, purifier includes two deflectors, and the deflector symmetry sets up in the both sides of a plurality of blowholes, and the deflector includes first deflector and second deflector, and first deflector is inboard to be connected through the pivot with the inside wall of spraying case, and the outside is passed through the arc and is connected with the second deflector, and the horizontal length and the work piece of first deflector cooperate, and first deflector and second deflector mutually perpendicular. The rotating shaft of the first guide sheet is connected with a second motor. The transverse length of the first guide sheet is matched with the workpiece, and when the first guide sheet rotates by 90 degrees, the first guide sheet is matched with the second guide sheet to guide airflow to the spraying surface of the workpiece.

In the spraying process, the air flow flowing out of the air blowing hole respectively flows to the two guide plates under the blocking of the workpiece, and then an air wall close to the inner wall of the spraying box is formed under the guiding of the two guide plates. After the spraying manipulator is closed, the two guide plates are rotated by 90 degrees through the second motor, air flow flowing out of the air blowing hole respectively flows to the two guide plates under the blocking of the workpiece, then flows to the spraying surface of the workpiece under the guiding of the two guide plates, the spraying surface of the workpiece is dried, then two air flows in different directions collide with each other at the spraying surface of the workpiece, and then flow to the lower port of the first purifying pipe, and the purifying range and the purifying effect of the interior of the spraying box are improved.

A working method of a spraying robot capable of intelligently processing harmful gas comprises the steps that after a spraying manipulator is started, a control system controls a telescopic cylinder to extend to drive a pressing cover to move downwards, the pressing cover drives a first purifying pipe to move downwards to be communicated with a collecting barrel, then a purifying fan and a first heating wire are started, airflow blown out from a blowing hole respectively flows to two guide plates under the blocking of a workpiece, and then an air wall close to the inner wall of a spraying box is formed under the guiding of the two guide plates and flows to a plurality of auxiliary holes. When the spraying mechanical arm stops, the control system controls the telescopic cylinder to extend to drive the abutting cover to move upwards, and the first purifying pipe moves upwards to be separated from the collecting cylinder under the action of the first spring; meanwhile, the two guide plates are rotated by 90 degrees through the second motor, so that air flow blown out of the air blowing hole respectively flows to the two guide plates under the blocking of the workpiece, then flows to the spraying surface of the workpiece under the guiding of the two guide plates, collides at the spraying surface of the workpiece and flows to the lower port of the first purifying pipe; when the air quality detection device detects that the concentration of the harmful gas is lower than the threshold value, the control system closes the purification fan and the first heating wire.

Through two kinds of air current circulation modes, can protect spraying incasement wall at the spraying in-process, reduce the influence of air current to the spraying process simultaneously. And after the spraying process, the purification range and the purification effect of the purification device on the interior of the spraying box are improved.

The invention has the beneficial effects that:

1. through setting up external gaseous accommodate device and purifier, can purify the coating cloud and the harmful gas that the spraying produced, harmful gas reveals when preventing to change the work piece.

2. First coating cloud adsorbs the coating cloud that the cotton can adsorb in the air current, then makes first coating cloud adsorb cotton absorbent coating cloud rapid draing through first heating wire, prevents to paint too much back drippage, has improved first coating cloud and has adsorbed cotton adsorption strength and the filter effect to the coating cloud, prevents that the coating cloud from passing first coating cloud and adsorbs cotton solidification to first active carbon plate surface, with the micropore blocking on the first active carbon plate.

3. Through setting up the third clarifier, can be when the purifying effect of first clarifier reduces, the clarifier of automatic renewal new.

Drawings

FIG. 1 is a schematic diagram of the internal structure of the intelligent harmful gas treatment spraying robot;

FIG. 2 is a schematic top view of the intelligent harmful gas treatment spraying robot;

fig. 3 is a schematic structural diagram of a first purifier in the intelligent harmful gas treatment spraying robot.

Description of reference numerals:

1. a spraying box; 2. a gas tank; 21. a piston head; 22. a push cylinder; 23. an exhaust pipe; 3. a vent pipe; 31. a first communication pipe; 32. a telescopic cylinder; 33. pressing the cover; 331. a second electrical contact; 4. a protective shell; 41. a first motor; 42. a rotating frame; 43. a sliding seat; 44. a protective plug; 45. a third purifier; 46. ejecting the cylinder; 47. a first purge line; 471. a first electrical contact; 472. a first activated carbon plate; 473. a first positioning sheet; 474. a first heating wire; 475. a first elastic skeleton; 476. the first paint mist adsorbs cotton; 5. a box door; 6. a lateral movement device; 61. a lifting cylinder; 62. a nozzle; 7. an auxiliary tank; 71. a collection canister; 72. an auxiliary hole; 8. a second motor; 81. a blowhole; 82. a first guide piece; 83. a second guide piece; 84. a clamping device; 85. and (5) a workpiece.

Detailed Description

The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention.

As shown in fig. 1, a spraying robot for intelligently processing harmful gas comprises a spraying box 1, a spraying manipulator, a purifying device, a clamping device 84, an external gas containing device and a control system. The top of the spraying box 1 is provided with a placing opening, a box door 5 is arranged in the placing opening, and the box door 5 is connected with a sensing device. The holding device 84 is disposed in the spraying box 1, and is used for holding a workpiece 85 below the entrance. The spraying manipulator is arranged in the spraying box 1 and is positioned at the side of the workpiece 85. The purification device comprises a first purifier, a ventilation pipe 3, a purification fan and an air quality detection device. Both ends of the vent pipe 3 are communicated with the interior of the spraying box 1, and the vent pipe 3 is a hose. The first purifier is arranged at the air inlet end of the ventilation pipe 3. The purification fan is arranged in the ventilation pipe 3. The external gas containing device comprises a gas tank 2, a pushing cylinder 22, a piston head 21, two ventilation valves, an exhaust valve, a second purifier and an exhaust pipe 23. The gas tank 2 is arranged outside the spraying tank 1. The ventilation pipe 3 passes through the gas box 2. The two ventilation valves are arranged in the ventilation pipe 3 and are respectively positioned in the communication ports of the ventilation pipe 3 and the gas box 2. One end of the exhaust pipe 23 communicates with the inside of the gas tank 2, and the other end communicates with the outside for communicating the gas tank 2 with the outside. The exhaust valve is provided in the exhaust pipe 23. The second purifier is disposed in the exhaust pipe 23 and is located at a side of the exhaust valve away from the gas tank 2. The piston head 21 is slidably disposed in the gas tank 2 on the same side of the vent pipe 3 as the vent pipe. The telescopic end of the push cylinder 22 is connected to the piston head 21. The control system is connected with the purification device, the induction device, the external gas containing device, the spraying manipulator and the clamping device 84. The second purifier includes a second activated carbon plate.

The staff opens chamber door 5, triggers induction system, and control system closes discharge valve, opens two vent valves, and control push cylinder 22 contracts, and push cylinder 22 drives piston head 21 and removes, makes the outside air get into from putting into the mouth, prevents that the harmful gas in the spraying case 1 from revealing. The worker puts the workpiece 85 into the painting booth 1, is clamped by the clamping device 84, then closes the door 5, and when the sensing device senses that the door 5 is closed, the control system controls the pushing cylinder 22 to stop moving. And then controlling the spraying mechanical arm to spray the surface of the workpiece 85, after the spraying mechanical arm is started, simultaneously starting a purification fan by a control system, forming circulating air flow in the spraying box 1 through the vent pipe 3, and then removing paint mist and harmful gas in the air flow through the first purifier. When the spraying manipulator stops and the air quality detection device detects that the concentration of the harmful gas is lower than a threshold value, the purification fan is controlled to stop. Then the control system closes the two vent valves, opens the exhaust valve, and then controls the push cylinder 22 to extend, so as to drive the piston head 21 to move, so that the gas in the gas tank 2 is discharged to the outside after passing through the second purifier. Set up purifier and external gaseous accommodate device and can purify paint mist and harmful gas that the spraying produced and prevent to change harmful gas when work piece 85 and reveal from putting into the mouth.

As shown in fig. 3, the cleaning apparatus includes a third cleaner 45, a rotating frame 42, a first motor 41, a shield case 4, a first communication pipe 31, an insertion port, and a timer. The protective shell 4 is arranged above the spraying box 1 and is fixed with the spraying box 1 through screws. First connecting pipe 31 is vertical setting, and its lower part runs through protective housing 4 and extends to inside protective housing 4, and its upper portion is connected through the air inlet end of screw thread with ventilation pipe 3. The first motor 41 is disposed above the protective shell 4, and a rotating shaft thereof penetrates the protective shell 4 downward and extends to the inside of the protective shell 4. The first purifier is disposed in the protective shell 4 and below the first communication pipe 31. The third cleaner 45 and the first cleaner are disposed around the rotation shaft of the first motor 41 and connected to the rotation shaft of the first motor 41 through the rotating frame 42, and the third cleaner 45 is engaged with the first communicating pipe 31. The insertion opening is arranged at the lower part of the protective shell 4, penetrates through the spraying box 1 downwards and is used for communicating the interior of the protective shell 4 with the interior of the spraying box 1. The timer is connected with the control system. The third purifier 45 is coupled to the first communicating pipe 31 and can communicate with each other by the first motor 41.

When the purification fan starts, the timer is started, if the purification time reaches the set value, the concentration of the harmful gas detected by the air quality detection device is still higher than the threshold value, after the purification process is completed, the control system controls the first motor 41 to rotate, the rotating rack 42 is driven to rotate, the rotating rack 42 drives the first purifier to rotate 180 degrees to be separated from the first communication pipe 31, the third purifier 45 is driven to rotate 180 degrees to be connected with the first communication pipe 31, and the technical effect of replacing the purifier is achieved.

The first purifier includes a first purifying pipe 47, a first paint mist adsorbing cotton 476, a first activated carbon plate 472, and a first heating wire 474. The first purification pipe 47 is vertically disposed below the first communication pipe 31, and the first purification pipe 47 is adapted to the insertion opening. The first paint mist adsorption cotton 476 is disposed inside the first purification pipe 47, and the first paint mist adsorption cotton 476 is flame retardant cotton. The first activated carbon plate 472 is disposed in the inner wall of the first purification tube 47 above the first paint mist absorbent cotton 476. The first heating wire 474 is disposed inside the first purification tube 47, surrounding the first paint mist adsorption cotton 476. The third purifier 45 includes a third purifying tube, a third paint mist adsorbing cotton, a third activated carbon plate, and a third heating wire. The third purge tube is vertically arranged in the protective shell 4, and the third purge tube is adapted to the insertion hole. The third paint mist adsorption cotton is arranged in the third purifying pipe and is flame-retardant cotton. The third activated carbon plate is arranged in the third purifying tube and is positioned above the third paint mist adsorption cotton. The third heating wire is arranged in the inner wall of the third purifying pipe and surrounds the third paint mist adsorption cotton. The purification device comprises several blow holes 81. The plurality of air blowing holes 81 are formed in the inner wall of the spraying box 1 and located on one side, away from the spraying manipulator, of the workpiece 85, and the plurality of air blowing holes 81 are communicated with the air outlet end of the ventilation pipe 3. The heating temperatures of the first heating wire 474 and the third heating wire are constantly 60 ℃.

First coating cloud adsorbs cotton 476 can adsorb the coating cloud in the air current, then adsorb cotton 476 through first heating wire 474 heating first coating cloud, solvent evaporation and moisture evaporation accelerate, make first coating cloud adsorb the absorbent coating cloud rapid draing of cotton 476, then make the absorbent coating cloud rapid draing through first heating wire 474, prevent that paint from dripping after too much, improved the adsorption strength and the filter effect of first coating cloud adsorption cotton 476 to the coating cloud, prevent that the coating cloud from passing first coating cloud adsorption cotton 476 and solidifying to first active carbon plate 472 surface, with the micropore blocking on the first active carbon plate 472. The first heating wire 474 can heat the air flow, so that the hot air flow is blown out from the plurality of air blowing holes 81 to heat the workpiece 85, thereby increasing the drying speed of the sprayed paint and preventing the paint mist from adhering to the back surface of the workpiece 85. The first heating wire 474 is activated when the purification fan is activated, and the first heating wire 474 is deactivated when the purification fan is deactivated.

The purification device comprises two sliding seats 43, two first sliding blocks, a pressing cover 33 and a telescopic cylinder 32. Two sliding seats 43 set up on rotating turret 42, are provided with first slide on sliding seat 43's the side, and first slide is T type slide, and vertical setting, is provided with first spring in the first slide, and first spring is compression state. The first sliding blocks are respectively arranged in the first slide ways and are respectively fixed with the third purifier 45 and the first purifier, and the first sliding blocks are positioned above the corresponding first springs. The upper portion of the first purge pipe 47 is provided with a first electrical contact 471, the first electrical contact 471 is connected to the first heating wire 474, and the lower portion of the first purge pipe 47 passes through the insertion opening into the interior of the spray booth 1. The pressing cover 33 is disposed at the lower part of the first communicating pipe 31, covers the upper part of the first purifying pipe 47, the second electrical contact 331 is disposed in the pressing cover 33, the second electrical contact 331 is connected with the first electrical contact 471, and the second electrical contact 331 is connected with the power supply. And a third electric contact is arranged at the upper part of the third purifying pipe and is connected with a third heating wire. The telescopic cylinder 32 is vertically arranged in the protective shell 4, and the lower telescopic end of the telescopic cylinder is connected with the abutting cover 33.

The extension of the telescopic cylinder 32 is controlled to drive the pressing cover 33 to move downwards, the first spring is compressed by the first slider, and when the pressing cover 33 is connected with the first purifying pipe 47, the second electrical contact 331 is connected with the first electrical contact 471, so that the first heating wire 474 is connected with the power supply and can be controlled by the control system. Then, the pressing cover 33 pushes the first purifying tube 47 downwards continuously, so that the lower part of the first purifying tube 47 enters the spraying box 1 through the insertion opening, and paint mist is prevented from entering the protective shell 4 to pollute the standby third purifier 45.

The purification device comprises a protective plug 44 and an ejection cylinder 46, and a replacement port is arranged on the protective shell 4. The protective plug 44 is disposed within the replacement port. The knock-out cylinder 46 is vertically disposed below the replacement port, and is located below the third purifier 45. The first slideway extends upwards to the upper part of the sliding seat 43. The lower part of the first spring is fixed to the slide holder 43, and the upper part thereof abuts against the first slider.

When the used first cleaner or third cleaner 45 needs to be replaced, the protective plug 44 is opened, then the first cleaner or third cleaner 45 is rotated below the replacement port by the first motor 41, and then the ejection cylinder 46 is controlled to extend, so that the first cleaner or third cleaner 45 is ejected from the replacement port, and the first slider is separated from the first spring. Then a new purifier is put into the protective shell 4 through the replacing port, and the first slide block on the surface of the new purifier enters the first slide way and is connected with the first spring.

Purifier includes collecting vessel 71, and the upper portion of collecting vessel 71 is the opening, and collecting vessel 71 is vertical to be set up in first purge tube 47 below, and the external diameter of collecting vessel 71 is the same with the internal diameter of first purge tube 47, and the upper portion of collecting vessel 71 is provided with the compression piece, and the top surface of compression piece is the spill cambered surface, is provided with a plurality of collection powder holes on the compression piece. The first purifier comprises a first positioning piece 473 and a first elastic framework 475, wherein the first positioning piece 473 is arranged inside the first purifying tube 47 and below the first activated carbon plate 472, and a plurality of first ventilation holes are formed in the first positioning piece 473. The first elastic framework 475 is made of memory metal material, the first elastic framework 475 is fixed with the first positioning piece 473, and the first elastic framework 475 is filled with first paint mist adsorption cotton 476. The third purifier 45 comprises a third positioning piece and a third elastic framework, the third positioning piece is arranged in the third purifying pipe and is positioned below the third activated carbon plate, and the third positioning piece is provided with a plurality of third ventilation holes. The third elastic framework is made of memory metal materials, the third elastic framework is fixed with the third positioning piece, and third paint mist adsorption cotton is filled in the third elastic framework.

After the purification process, control system control telescopic cylinder 32 extends, drives first purge tube 47 and moves down, makes first elastic skeleton 475, first coating cloud adsorb cotton 476 and collecting vessel 71 and produce the extrusion, then control telescopic cylinder 32 is reciprocal flexible, compresses first elastic skeleton 475 and first coating cloud and adsorbs cotton 476, and the dry paint is smashed into the powder in first elastic skeleton 475 and first coating cloud adsorb cotton 476, makes the paint powder get into in the collecting vessel 71 through the powder collection hole. The paint in the first elastic framework 475 and the first paint mist adsorption cotton 476 is cleaned, the adsorption effect of the first paint mist adsorption cotton 476 on the paint mist can be improved, the service life of the first paint mist adsorption cotton 476 is prolonged, and the replacement frequency of the purifier is reduced. Set up first elasticity skeleton 475, can improve the drying efficiency that cotton 476 of first coating cloud absorption adsorbed coating cloud through its heat conductivity, can also finalize the design to first coating cloud absorption cotton 476.

As shown in fig. 2, the painting robot includes a nozzle 62, a lifting cylinder 61, and a lateral movement device 6, and the lateral movement device 6 is disposed inside the painting booth 1. The lifting cylinder 61 is vertically arranged inside the spraying box 1, and the bottom of the lifting cylinder is connected with the transverse moving device 6. The nozzle 62 is fixed to the upper telescopic end of the elevating cylinder 61 and faces the workpiece 85. The purification device comprises an auxiliary box 7, the auxiliary box 7 is arranged on one side, far away from the workpiece 85, of the spraying manipulator and communicated with the middle of the collecting barrel 71, a plurality of auxiliary holes 72 are formed in the side, facing the workpiece 85, of the auxiliary box 7, the plurality of auxiliary holes 72 are communicated with the inside of the auxiliary box 7 and arranged along the inner walls and the top plates of the two sides of the spraying box 1, and the auxiliary box 7 is located on the outer side of the spraying manipulator and the workpiece 85 and matched with the plurality of air blowing holes 81. Air quality detection device inlays and locates on the inside wall of spraying case 1. The first purification pipe 47 is fitted with a plurality of air blowing holes 81. The plurality of auxiliary holes 72 cooperate with the plurality of blow holes 81 to form a wind wall adjacent the inner wall of the spray booth 1. The first purge pipe 47 is fitted with the plurality of blowholes 81, and the first purge pipe 47 is close to the middle of the spray box 1, which can improve the flow range of the air current.

In the spraying process, the telescopic cylinder 32 is controlled to extend, the first purifying pipe 47 is driven to move downwards to be communicated with the collecting cylinder 71, airflow blown out from the air blowing hole 81 is blocked by the workpiece 85 and flows to the plurality of auxiliary holes 72 from the spraying manipulator and the outer side of the workpiece 85, and then the airflow sequentially passes through the auxiliary box 7 and the collecting cylinder 71 to enter the first purifying pipe 47, so that an air wall wrapping the spraying manipulator and the workpiece 85 is formed, the airflow is prevented from influencing the spraying process, and paint mist is prevented from being attached to the inner wall of the cavity quality detection device and the spraying box 1. When the spraying manipulator stops, the telescopic cylinder 32 is controlled to contract, the first purifying pipe 47 is driven to move upwards to be separated from the collecting cylinder 71, air flow enters from the lower port of the first purifying pipe 47, the flowing range of the air flow can be improved, and the purifying effect of the purifying device is improved.

The purification device comprises two guide plates, the guide plates are symmetrically arranged on two sides of the plurality of air blowing holes 81 and comprise first guide pieces 82 and second guide pieces 83, the inner sides of the first guide pieces 82 are connected with the inner side wall of the spraying box 1 through rotating shafts, the outer sides of the first guide pieces 82 are connected with the second guide pieces 83 through arc-shaped plates, the transverse length of the first guide pieces 82 is matched with a workpiece 85, and the first guide pieces 82 are perpendicular to the second guide pieces 83. The second motor 8 is connected to the rotating shaft of the first guide piece 82. The first guide piece 82 has a transverse length that cooperates with the workpiece 85 and cooperates with the second guide piece 83 to direct the air flow toward the spray surface of the workpiece 85 after the first guide piece 82 has been rotated 90 degrees.

During the spraying process, the air flow flowing out of the air blowing hole 81 is blocked by the workpiece 85 and flows to the two guide plates respectively, and under the guidance of the two guide plates, an air wall close to the inner wall of the spraying box 1 is formed. After the spraying manipulator is closed, the two guide plates are rotated by 90 degrees by controlling the second motor 8, the air flow flowing out of the air blowing hole 81 respectively flows to the two guide plates under the blocking of the workpiece 85, and flows to the spraying surface of the workpiece 85 under the guiding of the two guide plates to dry the spraying surface of the workpiece 85, and then two air flows in different directions collide with each other at the spraying surface of the workpiece 85 and flow to the lower port of the first purifying pipe 47, so that the purifying range and the purifying effect of the spraying box 1 are improved.

A working method of a spraying robot capable of intelligently processing harmful gas comprises the steps that after a spraying manipulator is started, a control system controls a telescopic cylinder 32 to extend to drive a pressing cover 33 to move downwards, the pressing cover 33 drives a first purifying pipe 47 to move downwards to be communicated with a collecting cylinder 71, then a purifying fan and a first heating wire 474 are started, airflow blown out of an air blowing hole 81 is enabled to flow to two guide plates respectively under the blocking of a workpiece 85, then an air wall close to the inner wall of a spraying box 1 is formed under the guiding of the two guide plates, and the airflow flows to a plurality of auxiliary holes 72. After the spraying manipulator stops, the control system controls the telescopic cylinder 32 to extend, drives the pressing cover 33 to move upwards, and enables the first purifying pipe 47 to move upwards to be separated from the collecting cylinder 71 under the action of the first spring; meanwhile, the two guide plates are rotated by 90 degrees by the second motor 8, so that the air flow blown out from the air blowing hole 81 respectively flows to the two guide plates under the blocking of the workpiece 85, then flows to the spraying surface of the workpiece 85 under the guiding of the two guide plates, collides with the spraying surface of the workpiece 85, and then flows to the lower port of the first purifying pipe 47; when the air quality detection means detects that the concentration of the harmful gas is lower than the threshold value, the control system turns off the purification fan and the first heating wire 474.

Through two kinds of air current circulation mode, can protect spraying case 1 inner wall in the spraying process, reduce the influence of air current to the spraying process simultaneously. And after the spraying process, the purification range and the purification effect of the purification device on the interior of the spraying box 1 are improved.

The above-mentioned embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Claims

1. A spraying robot for intelligently processing harmful gas is characterized by comprising: the device comprises a spraying box (1), a spraying mechanical arm, a purifying device, a clamping device (84), an external gas containing device and a control system; the top of the spraying box (1) is provided with a placing opening, a box door (5) is arranged in the placing opening, and the box door (5) is connected with an induction device; the clamping device (84) is arranged in the spraying box (1) and used for clamping a workpiece (85) and is positioned below the placing opening; the spraying mechanical arm is arranged in the spraying box (1) and is positioned on the side of the workpiece (85); the purification device comprises a first purifier, a ventilation pipe (3), a purification fan and an air quality detection device; both ends of the ventilation pipe (3) are communicated with the interior of the spraying box (1), and the ventilation pipe (3) is a hose; the first purifier is arranged at the air inlet end of the ventilation pipe (3); the purification fan is arranged in the ventilation pipe (3); the external gas containing device comprises a gas box (2), a pushing cylinder (22), a piston head (21), two ventilation valves, an exhaust valve, a second purifier and an exhaust pipe (23); the gas box (2) is arranged outside the spraying box (1); the ventilation pipe (3) passes through the gas box (2); the two ventilation valves are arranged in the ventilation pipe (3) and are respectively positioned in a communication port of the ventilation pipe (3) and the gas box (2); one end of the exhaust pipe (23) is communicated with the inside of the gas box (2), and the other end of the exhaust pipe is communicated with the outside; the exhaust valve is arranged in the exhaust pipe (23); the second purifier is arranged in the exhaust pipe (23) and is positioned on one side, far away from the gas box (2), of the exhaust valve; the piston head (21) is arranged in the gas box (2) in a sliding mode and is positioned on the same side of the ventilation pipe (3) and the exhaust pipe (23); the telescopic end of the pushing cylinder (22) is connected with the piston head (21); the control system is connected with the purification device, the induction device, the external gas containing device, the spraying manipulator and the clamping device (84);

the purification device comprises at least one third purifier (45), a rotating frame (42), a first motor (41), a protective shell (4), a first communication pipe (31), an insertion opening and a timer; the protective shell (4) is arranged above the spraying box (1) and is fixedly connected with the spraying box (1); the first communicating pipe (31) is vertically arranged, the lower part of the first communicating pipe penetrates through the protective shell (4) and extends into the protective shell (4), and the upper part of the first communicating pipe is connected with the air inlet end of the communicating pipe (3); the first motor (41) is arranged above the protective shell (4), and a rotating shaft of the first motor downwards penetrates through the protective shell (4) and extends into the protective shell (4); the first purifier is arranged in the protective shell (4) and is positioned below the first communication pipe (31); the third purifier (45) and the first purifier are arranged around the rotating shaft of the first motor (41) and are connected with the rotating shaft of the first motor (41) through the rotating frame (42), and the third purifier (45) is matched with the first communication pipe (31); the insertion hole is formed in the lower portion of the protective shell (4), penetrates through the spraying box (1) downwards and is used for communicating the interior of the protective shell (4) with the interior of the spraying box (1); the timer is connected with the control system.

2. The intelligent harmful gas treatment spraying robot of claim 1, wherein: the first purifier comprises a first purifying pipe (47), first paint mist adsorption cotton (476), a first activated carbon plate (472) and a first heating wire (474); the first purifying pipe (47) is vertically arranged below the first communicating pipe (31), and the first purifying pipe (47) is adapted to the insertion hole; the first paint mist adsorption cotton (476) is arranged inside the first purification pipe (47), and the first paint mist adsorption cotton (476) is flame-retardant cotton; the first activated carbon plate (472) is arranged in the inner wall of the first purifying pipe (47) and is positioned above the first paint mist adsorption cotton (476); the first heating wire (474) is arranged inside the first purifying pipe (47) and surrounds the first paint mist adsorption cotton (476); the third purifier (45) comprises a third purifying pipe, third paint mist adsorption cotton, a third activated carbon plate and a third heating wire; the third purifying pipe is vertically arranged in the protective shell (4), and the third purifying pipe is adapted to the insertion hole; the third paint mist adsorption cotton is arranged in the third purifying pipe and is flame-retardant cotton; the third activated carbon plate is arranged in the third purifying tube and is positioned above the third paint mist adsorption cotton; the third heating wire is arranged in the inner wall of the third purifying pipe and surrounds the third paint mist adsorption cotton; the purification device comprises a plurality of air blowing holes (81); the plurality of air blowing holes (81) are formed in the inner wall of the spraying box (1) and located on one side, away from the spraying mechanical hand, of the workpiece (85), and the plurality of air blowing holes (81) are communicated with the air outlet end of the ventilation pipe (3).

3. The intelligent harmful gas treatment spraying robot according to claim 2, wherein: the purification device comprises a plurality of sliding seats (43), a plurality of first sliding blocks, a pressing cover (33) and a telescopic cylinder (32); the sliding seats (43) are arranged on the rotating frame (42), a plurality of first slide ways are arranged on the side faces of the sliding seats (43), the first slide ways are T-shaped slide ways and are vertically arranged, first springs are arranged in the first slide ways, and the first springs are in a compressed state; the first sliding blocks are respectively arranged in the first sliding ways and are respectively fixed with the third purifier (45) and the first purifier, and the first sliding blocks are positioned above the corresponding first springs; a first electric contact (471) is arranged at the upper part of the first purifying pipe (47), the first electric contact (471) is connected with the first heating wire (474), and the lower part of the first purifying pipe (47) penetrates through the insertion opening and enters the spraying box (1); the pressing cover (33) is arranged at the lower part of the first communication pipe (31) and covers the upper part of the first purification pipe (47), a second electric contact (331) is arranged in the pressing cover (33), the second electric contact (331) is connected with the first electric contact (471), and the second electric contact (331) is connected with a power supply; a third electric contact is arranged at the upper part of the third purifying pipe and is connected with the third heating wire; the telescopic cylinder (32) is vertically arranged in the protective shell (4), and the lower telescopic end of the telescopic cylinder is connected with the pressing cover (33).

4. The intelligent harmful gas treatment spraying robot according to claim 3, wherein: the purification device comprises a protective plug (44) and an ejection cylinder (46), and a replacement port is arranged on the protective shell (4); the protective plug (44) is disposed within the replacement port; the ejection cylinder (46) is vertically arranged below the replacement port and below the third purifier (45); the first slideway extends upwards to the upper part of the sliding seat (43); the lower part of the first spring is fixed with the sliding seat (43), and the upper part of the first spring is abutted against the first sliding block.

5. The intelligent harmful gas treatment spraying robot according to claim 3, wherein: the purification device comprises a collecting cylinder (71), the upper part of the collecting cylinder (71) is provided with an opening, the collecting cylinder (71) is vertically arranged below the first purification pipe (47), the outer diameter of the collecting cylinder (71) is the same as the inner diameter of the first purification pipe (47), the upper part of the collecting cylinder (71) is provided with a compression sheet, the top surface of the compression sheet is a concave cambered surface, and the compression sheet is provided with a plurality of powder collecting holes; the first purifier comprises a first positioning sheet (473) and a first elastic framework (475), the first positioning sheet (473) is arranged inside the first purifying pipe (47) and is positioned below the first activated carbon plate (472), and a plurality of first ventilation holes are formed in the first positioning sheet (473); the first elastic framework (475) is made of memory metal materials, the first elastic framework (475) is fixed with the first positioning piece (473), and the first elastic framework (475) is filled with first paint mist adsorption cotton (476); the third purifier (45) comprises a third positioning piece and a third elastic framework, the third positioning piece is arranged in the third purifying tube and is positioned below the third activated carbon plate, and a plurality of third ventilation holes are formed in the third positioning piece; the third elastic framework is made of memory metal materials, the third elastic framework is fixed with the third positioning piece, and the third elastic framework is filled with the third paint mist adsorption cotton.

6. The intelligent harmful gas treatment spraying robot of claim 5, wherein: the spraying manipulator comprises a nozzle (62), a lifting cylinder (61) and a transverse moving device (6), wherein the transverse moving device (6) is arranged inside the spraying box (1); the lifting cylinder (61) is vertically arranged inside the spraying box (1), and the bottom of the lifting cylinder is connected with the transverse moving device (6); the nozzle (62) is fixed at the upper telescopic end of the lifting cylinder (61) and faces the workpiece (85); the purification device comprises an auxiliary box (7), the auxiliary box (7) is arranged on one side, far away from the workpiece (85), of the spraying manipulator and communicated with the middle of the collecting cylinder (71), a plurality of auxiliary holes (72) are formed in the side, facing the workpiece (85), of the auxiliary box (7), the plurality of auxiliary holes (72) are communicated with the inside of the auxiliary box (7), are arranged along the inner walls and the top plates of the two sides of the spraying box (1), are positioned on the outer sides of the spraying manipulator and the workpiece (85), and are matched with the plurality of air blowing holes (81); the air quality detection device is embedded on the inner side wall of the spraying box (1); the first purifying pipe (47) is matched with the plurality of air blowing holes (81).

7. The intelligent harmful gas treatment spraying robot of claim 6, wherein: the purification device comprises two guide plates, the guide plates are symmetrically arranged on two sides of the plurality of air blowing holes (81), each guide plate comprises a first guide sheet (82) and a second guide sheet (83), the inner side of each first guide sheet (82) is connected with the inner side wall of the corresponding spraying box (1) through a rotating shaft, the outer side of each first guide sheet is connected with the corresponding second guide sheet (83) through an arc-shaped plate, the transverse length of each first guide sheet (82) is matched with the corresponding workpiece (85), and the first guide sheets (82) are perpendicular to the second guide sheets (83); and a rotating shaft of the first guide sheet (82) is connected with a second motor (8).

8. An operating method of the intelligent harmful gas treatment painting robot according to any one of claims 1 to 7, characterized in that: after the spraying manipulator is started, the control system controls the telescopic cylinder (32) to extend to drive the pressing cover (33) to move downwards, the pressing cover (33) drives the first purifying pipe (47) to move downwards to be communicated with the collecting cylinder (71), then the control system starts the purifying fan and the first electric heating wire (474), so that air flow blown out from the air blowing hole (81) respectively flows to the two guide plates under the blocking of a workpiece (85), and under the guiding of the two guide plates, an air wall close to the inner wall of the spraying box (1) is formed and flows to the auxiliary holes (72).

9. The working method of the intelligent harmful gas treatment spraying robot according to claim 8, characterized in that: after the spraying manipulator stops, the control system controls the telescopic cylinder (32) to extend to drive the pressing cover (33) to move upwards, and the first purifying pipe (47) moves upwards to be separated from the collecting cylinder (71) under the action of the first spring; meanwhile, the control system rotates the two guide plates by 90 degrees through the second motor (8), so that the air flow blown out of the air blowing hole (81) respectively flows to the two guide plates under the blockage of the workpiece (85), then flows to the spraying surface of the workpiece (85) under the guide of the two guide plates, collides with the spraying surface of the workpiece (85), and flows to the lower port of the first purifying pipe (47); when the air quality detection device detects that the concentration of the harmful gas is lower than the threshold value, the control system closes the purification fan and the first heating wire (474).