A paint spraying device for flange processing

Abstract

The present invention relates to the technical field of paint spraying equipment, and in particular to a paint spraying device for flange processing, comprising a box, a nozzle assembly, and an upper cover mounted on the top: a support assembly and a transmission assembly are installed at the bottom of the box, and the transmission assembly is located at the upper end of the support assembly; a plurality of support rods are distributed in a circular array on the outside of the transmission assembly, a gap is provided between the distal end of the support rod and the inner wall of the box, and the flange to be painted is placed on the upper end of the support rod, and the nozzle assembly is located above the support rod; a flipping assembly is also provided on one side of the box. The present invention places the flange on the upper end of the support rod in a circular array, and the horizontal placement can prevent the problem of paint flowing under the action of gravity, and ensure that the sprayed paint is evenly covered on the surface of the flange. At the same time, the flange is flipped by using a flipping structure, so that several flanges can be sprayed with paint at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of paint spraying equipment, in particular to a paint spraying device for flange processing. Background Art

[0002] Flange is a very common connection element in mechanical and pipeline engineering. It is used to connect two pipe ends or the inlet and outlet of equipment. Flange is usually disc-shaped with bolt holes so that two flanges can be fastened together by bolts and nuts, and the sealing of the connection is achieved by sealing gaskets. The design of flange takes into account its load-bearing capacity, sealing performance and movement flexibility, and is suitable for the connection of various fluid pipelines and equipment.

[0003] Flanges usually need to be painted to protect the surface of the flange and prevent oxidizing substances from corroding the surface of the flange.

[0004] There is a publication number CN219377645U, named a flange painting equipment, which specifically relates to the field of painting, including a workbench, a support frame fixedly connected to the top of the workbench, a paint storage box fixedly connected to the top of the support frame, a paint spraying pipe connected to the bottom of the paint storage box, a support member fixedly connected to the inner wall of the paint spraying pipe, a transmission rod rotatably connected to the inner wall of the support member, a rotating fan blade fixedly connected to the bottom of the transmission rod, the rotating fan blade is arranged in an inclined shape, a semicircular gear fixedly connected to the top of the transmission rod, a movable gear ring meshed with the outer wall of the semicircular gear, and a movable rod fixedly connected to one side of the movable gear ring. By setting up a semicircular gear and a movable gear ring, when painting the flange, the paint will impact the rotating fan blade to rotate the transmission rod, and finally the storage plate will drive the flange to rotate when painting, solving the problem that manually rotating the flange during painting will cause the skin of the staff to contact the paint and affect their health.

[0005] Although the above technology can effectively solve the problem of workers' skin touching the paint during the painting process, during the painting process, when the flange is placed vertically, because the paint has a certain fluidity, after the paint on the upper part is sprayed, the paint will slide down under the action of its own gravity, resulting in the thickness of the paint at the lower end of the flange being significantly thicker than the thickness of the paint on the upper part;

[0006] Secondly, the problem of solvent gas accumulation will occur during the painting process. Solvent gas is volatile and changes from liquid to gas, which has a great impact on the human body and the environment. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a paint spraying device for flange processing.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] Design a painting device for flange processing, including a box body, a spray head assembly and an upper cover clamped on the upper part:

[0010] A support assembly and a transmission assembly are installed at the bottom of the box, and the transmission assembly is located at the upper end of the support assembly;

[0011] A plurality of support rods are distributed in a circular array outside the transmission assembly, a gap is provided between the distal end of the support rod and the inner wall of the box, and the flange to be painted is placed on the upper end of the support rod, and the spray head assembly is located above the support rod;

[0012] A material turning assembly is also arranged on one side of the box body.

[0013] Preferably, the support assembly includes a base, a guide rail and a ball;

[0014] The base is installed in a ring shape at the bottom of the box body, the guide rail is opened at the upper part of the base, and the ball is located in the guide rail.

[0015] Preferably, the transmission assembly includes a planetary gear, a sun gear, a second motor, a support plate and an outer gear ring;

[0016] The support plate is connected to three planetary gears via a rotating shaft, the outer gear ring is located outside the three planetary gears, the second motor is installed on the other side of the support plate, the sun gear is installed at the end of the output shaft of the second motor, and the planetary gears are respectively meshed with the sun gear and the outer gear ring.

[0017] Preferably, an annular baffle is installed at the upper edge of the outer gear ring, and a support tube is installed at the lower end of the outer gear ring, and the lower end surface of the support tube is in close contact with the outer surface of the ball.

[0018] Preferably, the material turning assembly includes a first motor, a housing, a push plate, a connecting shaft and a through hole;

[0019] The through hole is vertically opened on the box body, the shell is installed on the outside of the box body, the first motor is installed on the shell, a connecting shaft is fixed to the end of the output shaft of the first motor, the push plate is installed on the connecting shaft, and during the rotation of the push plate, the push plate passes through the through hole.

[0020] Preferably, a slot is provided on one side of the box body, and an outwardly extending delivery pipe is installed at the slot position. A partition is vertically installed in the middle position of the delivery pipe, and the partition divides the interior of the delivery pipe into two independent spaces. A solvent gas processing structure is rotatably arranged in the two independent spaces.

[0021] Preferably, the solvent gas processing structure includes a toggle assembly, a first column, a second column and a gas exchange hole;

[0022] The first column and the second column are both rotatably arranged on both sides of the partition through a toggle assembly, and the ventilation holes are through-opened in the first column and the second column. In the initial state, the ventilation holes on the first column and the second column are arranged perpendicular to each other.

[0023] Preferably, the paddle assembly comprises a long strip, a round groove, a tray, a straight plate and a paddle;

[0024] The circular groove is opened at the bottom of the conveying pipe, the tray is rotatably arranged on the inner side of the circular groove, the long strip is arranged on the outer side of the tray in a ring shape, and the end of the long strip extends to the outer side of the circular groove, and the first column and the second column are respectively fixed on different trays;

[0025] The straight plates are distributed in an annular array below the outer gear ring, and the paddles are installed on one side of the straight plates. When the paddles rotate, the paddles contact the long strips inside the two circular grooves and drive the tray to rotate.

[0026] Preferably, an activated carbon column is rotatably arranged on one side of the conveying pipe, and the activated carbon column and the first column are located on the same side inside the conveying pipe, and an adjustment component is arranged between the bottom of the first column and the bottom of the activated carbon column for adjusting the position of the outer surface of the activated carbon column.

[0027] Preferably, the adjustment assembly includes a first transmission tooth, a chain and a second transmission tooth;

[0028] The first transmission tooth and the second transmission tooth are connected to the first column and the activated carbon column respectively through a transmission shaft, and the chain is sleeved on the outer sides of the first transmission tooth and the second transmission tooth.

[0029] The present invention proposes a paint spraying device for flange processing, which has the beneficial effect that the flange is placed horizontally on the upper end of a support rod in a circular array, which can prevent the paint from flowing under the action of gravity, and ensure that the sprayed paint evenly covers the surface of the flange. At the same time, the flange is turned over by using a turning structure, so that several flanges can be sprayed with paint at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present invention is a schematic diagram of the internal structure of a paint spraying device for flange processing proposed by the present invention.

[0031] Figure 2 The present invention is a schematic diagram of the external structure of a paint spraying device for flange processing proposed by the present invention.

[0032] Figure 3 for Figure 2 An enlarged structural view of part A of a proposed painting device for flange processing.

[0033] Figure 4 The present invention is a schematic structural diagram of a transmission assembly of a paint spraying device for flange processing.

[0034] Figure 5 This is a structural schematic diagram of the positions of the transmission components and the support components of a paint spraying device for flange processing proposed by the present invention.

[0035] Figure 6 The present invention is a schematic structural diagram of a conveying pipeline of a paint spraying device for flange processing.

[0036] Figure 7 The present invention provides a structural cross-sectional view of a conveying pipeline of a paint spraying device for flange processing.

[0037] Figure 8 A top view of the internal structure of a delivery pipeline of a paint spraying device for flange processing proposed by the present invention.

[0038] Fig. 9 The present invention is a schematic structural diagram of a toggle assembly of a paint spraying device for flange processing.

[0039] In the figure: conveying pipeline 1, box body 2, slot hole 3, first column 4, ventilation hole 5, nozzle assembly 6, support rod 7, annular baffle 8, cover plate 9, turning assembly 10, first motor 101, shell 102, push plate 103, connecting shaft 104, through hole 105, support cylinder 11, upper cover 12, partition 13, transmission assembly 14, planetary gear 141, sun gear 142, second motor 143, support plate 144, outer gear ring 145, base 15, guide rail 16, ball 17, first transmission tooth 18, chain 19, second transmission tooth 20, straight plate 21, paddle 22, second column 23, activated carbon column 24, strip 25, circular groove 26, tray 27. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Example 1, reference Figure 1-5A paint spraying device for flange processing includes a box body 2, a nozzle assembly 6 and an upper cover 12 clamped on the upper part. A support assembly and a transmission assembly 14 are installed at the bottom of the box body 2. The transmission assembly 14 is located at the upper end of the support assembly. The support assembly includes a base 15, a guide rail 16 and a ball 17. The base 15 is installed in a ring shape at the bottom of the box body 2, the guide rail 16 is opened at the upper part of the base 15, and the ball 17 is located in the guide rail 16.

[0042] A plurality of support rods 7 are distributed in a circular array on the outside of the transmission assembly 14, a gap is provided between the distal end of the support rod 7 and the inner wall of the box body 2, and the flange to be painted is placed on the upper end of the support rod 7, and the nozzle assembly 6 is located above the support rod 7. The transmission assembly 14 includes a planetary gear 141, a sun gear 142, a second motor 143, a support plate 144 and an outer gear ring 145.

[0043] The support plate 144 is connected to three planetary gears 141 through a rotating shaft, the outer ring gear 145 is located outside the three planetary gears 141, the second motor 143 is installed on the other side of the support plate 144, the sun gear 142 is installed at the end of the output shaft of the second motor 143, the planetary gears 141 are respectively meshed with the sun gear 142 and the outer ring gear 145, an annular baffle 8 is installed at the upper edge of the outer ring gear 145, and a support tube 11 is installed at the lower end of the outer ring gear 145, and the lower end surface of the support tube 11 is in close contact with the outer surface of the ball 17.

[0044] When spraying paint on the surface of the flange, several flanges are evenly placed on the upper part of the support rod 7, the bottom of the second motor 143 is fixed to the bottom of the box body 2, and the upper cover 12 is clamped on the upper part of the box body 2. At this time, the power switch of the second motor 143 is turned on to drive the sun gear 142 to rotate. Since the sun gear 142 and the outer ring gear 145 are respectively engaged with the planetary gear 141, and the planetary gear 141 is rotated on the support plate 144 through the rotating shaft, the position of the planetary gear 141 will not shift during the rotation process, and the outer ring gear 145 is driven to rotate at the same time. In this way, several support rods 7 are driven to change their positions, and the flange placed on the upper end of the support rod 7 is moved synchronously. When the flange moves to the lower end of the spray head assembly 6, the paint sprayed from the spray head assembly 6 is evenly covered on the outer surface of the flange, and the spraying time of each flange is consistent, so the uniform spraying effect can be guaranteed.

[0045] When the outer gear ring 145 rotates, the support tube 11 at the lower end is driven to rotate together. During the rotation, the lower end surface of the support tube 11 contacts the ball 17 on the inner side of the guide rail 16 at the upper end of the base 15. During the rotation of the support tube 11, with the help of the rolling of the ball 17, on the one hand, the support tube 11 can be effectively supported, and on the other hand, the friction between the support tube 11 and the base 15 can be reduced.

[0046] Example 2, reference Figure 3 The difference between this embodiment and embodiment 1 is that a material turning assembly 10 is further provided on one side of the box body 2, and the material turning assembly 10 includes a first motor 101, a shell 102, a push plate 103, a connecting shaft 104 and a through hole 105. The through hole 105 is vertically opened on the box body 2, the shell 102 is installed on the outside of the box body 2, the first motor 101 is installed on the shell 102, the connecting shaft 104 is fixed at the end of the output shaft of the first motor 101, the push plate 103 is installed on the connecting shaft 104, and during the rotation of the push plate 103, the push plate 103 passes through the through hole 105.

[0047] Usually, when spraying the flange, it is necessary to spray both sides of the flange. However, in the closed box 2, it is very difficult to realize automatic turning over without opening the box 2.

[0048] To this end, a turning assembly 10 is provided on one side of the box body 2. After the power supply of the first motor 101 is started, the connecting shaft 104 located on the inner side of the shell 102 is driven to rotate. During the rotation, the connecting shaft 104 drives the push plate 103 to rotate in the through hole 105. The rotation speeds of the first motor 101 and the second motor 143 are adjusted so that the moving speed of the support rod 7 and the rotation speed of the push plate 103 match each other. In this way, when the push plate 103 passes through the through hole 105 and enters the interior of the box body 2, it continues to rotate upwards. When rotating, it passes through the gap between the two adjacent support rods 7 and meets the flange at the upper end of the support rod 7. They are in contact with each other and apply an upward lifting force to one side of the bottom of the flange. At this time, as the position of the support rod 7 continues to move, a horizontal force is applied to the bottom of the flange that is about to be turned over. In this way, the push plate 103 continues to lift upward to achieve successful turning over of the flange. After turning over, the displacement distance of each flange is the same. At the same time, in the initial state, the flange is evenly placed on the upper end of the support rod 7. After all the flanges are turned over, the distance between two adjacent flanges is almost the same as the initial state, so that automatic turning over is achieved and both sides of the flange are sprayed at one time.

[0049] Example 3, reference Figure 6-9 The difference between this embodiment and Embodiment 1 and Embodiment 2 is that a slot hole 3 is opened on one side of the box body 2, and an outwardly extending delivery pipe 1 is installed at the position of the slot hole 3. A partition 13 is vertically installed in the middle position of the delivery pipe 1, and the partition 13 divides the interior of the delivery pipe 1 into two independent spaces. A solvent gas processing structure is rotatably arranged in the two independent spaces, and the solvent gas processing structure includes a toggle assembly, a first column 4, a second column 23 and a ventilation hole 5.

[0050] The first column 4 and the second column 23 are both rotatably arranged on both sides of the partition 13 through the toggle assembly, and the ventilation holes 5 are opened through the first column 4 and the second column 23. In the initial state, the ventilation holes 5 on the first column 4 and the second column 23 are arranged perpendicular to each other. The toggle assembly includes a strip 25, a circular groove 26, a tray 27, a straight plate 21 and a paddle 22. The circular groove 26 is opened at the bottom of the conveying pipe 1, and the tray 27 is rotatably arranged on the inner side of the circular groove 26. The strip 25 is arranged in a ring shape on the outer side of the tray 27, and the end of the strip 25 extends to the outer side of the circular groove 26. The straight plate 21 is distributed in a ring array below the outer gear ring 145. The paddle 22 is installed on one side of the straight plate 21, and when the paddle 22 rotates, the paddle 22 contacts the strips 25 on the inner sides of the two circular grooves 26 and drives the tray 27 to rotate.

[0051] During the painting process, the problem of solvent gas accumulation will occur in a closed environment. This solvent gas is highly volatile. Once volatilized, it poses a great threat to the human body and the environment. It is safer to handle the gas without opening the upper cover 12. At the same time, the pressure balance of the box 2 must be ensured, and the impact of pressure balance on painting is minimized.

[0052] To this end, the conveying pipeline 1 is divided into two enclosed and independent spaces by a partition 13. A first column 4 and a second column 23 are respectively arranged in the two independent spaces, and the second column 23 and the first column 4 are both in contact with the partition 13 and the inner wall of the conveying pipeline 1. At the same time, the independent space with the first column 4 is an air outlet space, and the independent space with the second column 23 is an air intake space. The gas in the box body 2 is discharged from the ventilation holes 5 on the first column 4, and the ventilation equipment outside the box body 2 injects the gas into the inner side of the box body 2 through the ventilation holes 5 on the second column 23, ensuring that the intake flow rate of the ventilation equipment is consistent with the discharge flow rate of the gas from the box body 2, and the two ventilation holes 5 have the same size.

[0053] As the straight plate 21 rotates with the outer gear ring 145, the paddle 22 at its lower end is driven to move together. When the paddle 22 moves to a position close to the slot 3, two circular grooves 26 are respectively provided in two independent spaces of the conveying pipe 1, and the first column 4 and the second column 23 are respectively fixed on different trays 27. Four long strips 25 are evenly arranged on the outer sides of the two trays 27 inside the circular grooves 26, and the long strips extend to the inner side of the box body 2. When the long strip 25 contacts the paddle 22 each time, it will drive the second column 23 or the first column 4 to rotate 90 degrees. In the initial state, the two ventilation holes 5 remain perpendicular to each other, that is, the first When the ventilation holes 5 on the column 4 are interconnected with the inside of the box 2, the ventilation holes 5 on the second column 23 are closed, and vice versa. The two ventilation holes 5 are in a closed and open state, and the opening and closing time intervals of the two ventilation holes 5 are consistent, so that the naturally discharged gas is the same as the injected gas. In this way, the pressure inside the box 2 is maintained within a stable range and will not affect the painting work. At the same time, the solvent gas accumulation is also processed by gas exchange. Gas exchange is a physical process that allows gas molecules to be transferred between different areas through mechanisms such as diffusion, convection or dissolution, thereby achieving concentration balance. When solving the problem of solvent gas accumulation, gas exchange can effectively promote the diffusion of solvent gas in high-concentration areas to low-concentration areas or the outside world, thereby reducing the local solvent gas concentration and avoiding potential risks caused by gas accumulation.

[0054] Example 4, reference Figure 6-9 The difference between this embodiment and Embodiment 1, Embodiment 2 and Embodiment 3 is that an activated carbon column 24 is rotatably arranged on one side of the conveying pipe 1, and the activated carbon column 24 and the first column 4 are located on the same side of the conveying pipe 1, and an adjustment component is arranged between the bottom of the first column 4 and the bottom of the activated carbon column 24, which is used to adjust the position of the outer surface of the activated carbon column 24.

[0055] The adjustment component includes a first transmission tooth 18, a chain 19 and a second transmission tooth 20. The first transmission tooth 18 and the second transmission tooth 20 are respectively connected to the first column 4 and the activated carbon column 24 through a connecting shaft, and the chain 19 is sleeved on the outside of the first transmission tooth 18 and the second transmission tooth 20.

[0056] The solvent gas contains organic vapors, which generally refer to organic compounds that easily evaporate into gases at room temperature. These vapors are often flammable and explosive, which means that they can form combustible or flammable mixtures with air under certain conditions, and may burn or explode when encountering an ignition source.

[0057] To this end, a rotatable activated carbon column 24 is arranged in an independent space on one side of the first column 4. The activated carbon column 24 has excellent adsorption properties and adsorbs organic vapor contained in the exhausted gas. The outer surface of the activated carbon column 24 is curved. Compared with the flat design, the curved surface can increase the contact area with the gas molecules. In this way, when the gas passes through the activated carbon column 24, it can adsorb these organic vapors and curb the harm of organic vapor at the source.

[0058] Secondly, in order to allow the outer surface of the activated carbon column 24 to uniformly contact and adsorb the organic vapor, a first transmission tooth 18 and a second transmission tooth 20 are respectively arranged at the bottom of the first column 4 and the activated carbon column 24 through a transmission shaft, and a chain 19 is arranged between the first transmission tooth 18 and the second transmission tooth 20. When the first column 4 is moved by the paddle 22, the kinetic energy is transferred to the first transmission tooth 18 through the second transmission tooth 20 and the chain 19. In this way, the activated carbon column 24 can rotate in the conveying pipeline 1, and the discharged organic vapor can pass through different positions of the activated carbon column 24, thereby improving the adsorption effect of the activated carbon column 24.

[0059] The working principle of the device is:

[0060] When spraying paint on the surface of the flange, several flanges are evenly placed on the upper part of the support rod 7, the bottom of the second motor 143 is fixed to the bottom of the box body 2, and the upper cover 12 is clamped on the upper part of the box body 2. At this time, the power switch of the second motor 143 is turned on to drive the sun gear 142 to rotate. Since the sun gear 142 and the outer ring gear 145 are respectively engaged with the planetary gear 141, the planetary gear 141 is arranged on the support plate 144 through the rotation of the shaft, so that the position of the planetary gear 141 will not shift during the rotation, and the outer ring gear 145 is driven to rotate at the same time. In this way, several support rods 7 are driven to change their positions, and the flange placed on the upper end of the support rod 7 is moved synchronously. When the flange moves to the lower end of the spray head assembly 6, the paint sprayed by the spray head assembly 6 is evenly covered on the outer surface of the flange, and the spraying time of each flange is consistent, so the uniform spraying effect can be guaranteed.

[0061] When the outer gear ring 145 rotates, the support tube 11 at the lower end is driven to rotate together. During the rotation, the lower end surface of the support tube 11 contacts the ball 17 on the inner side of the guide rail 16 at the upper end of the base 15. During the rotation of the support tube 11, with the help of the rolling of the ball 17, on the one hand, the support tube 11 can be effectively supported, and on the other hand, the friction between the support tube 11 and the base 15 can be reduced.

[0062] Usually, when spraying the flange, it is necessary to spray both sides of the flange. However, in the closed box 2, it is very difficult to realize automatic turning over without opening the box 2.

[0063] To this end, a turning assembly 10 is provided on one side of the box body 2. After the power supply of the first motor 101 is started, the connecting shaft 104 located on the inner side of the shell 102 is driven to rotate. During the rotation, the connecting shaft 104 drives the push plate 103 to rotate in the through hole 105. The rotation speeds of the first motor 101 and the second motor 143 are adjusted so that the moving speed of the support rod 7 and the rotation speed of the push plate 103 match each other. In this way, when the push plate 103 passes through the through hole 105 and enters the interior of the box body 2, it continues to rotate upwards. When rotating, it passes through the gap between the two adjacent support rods 7 and meets the flange at the upper end of the support rod 7. They are in contact with each other and apply an upward lifting force to one side of the bottom of the flange. At this time, as the position of the support rod 7 continues to move, a horizontal force is applied to the bottom of the flange that is about to be turned over. In this way, the push plate 103 continues to lift upward to achieve successful turning over of the flange. After turning over, the displacement distance of each flange is the same. At the same time, in the initial state, the flange is evenly placed on the upper end of the support rod 7. After all the flanges are turned over, the distance between two adjacent flanges is almost the same as the initial state, so that automatic turning over is achieved and both sides of the flange are sprayed at one time.

[0064] During the painting process, the problem of solvent gas accumulation will occur in a closed environment. This solvent gas is highly volatile. Once volatilized, it poses a great threat to the human body and the environment. It is safer to handle the gas without opening the upper cover 12. At the same time, the pressure balance of the box 2 must be ensured, and the impact of pressure balance on painting is minimized.

[0065] To this end, the conveying pipeline 1 is divided into two enclosed and independent spaces by a partition 13. A first column 4 and a second column 23 are respectively arranged in the two independent spaces, and the second column 23 and the first column 4 are both in contact with the partition 13 and the inner wall of the conveying pipeline 1. At the same time, the independent space with the first column 4 is an air outlet space, and the independent space with the second column 23 is an air intake space. The gas in the box body 2 is discharged from the ventilation holes 5 on the first column 4, and the ventilation equipment outside the box body 2 injects the gas into the inner side of the box body 2 through the ventilation holes 5 on the second column 23, ensuring that the intake flow rate of the ventilation equipment is consistent with the discharge flow rate of the gas from the box body 2, and the two ventilation holes 5 have the same size.

[0066] As the straight plate 21 rotates with the outer gear ring 145, the paddle 22 at its lower end is driven to move together. When the paddle 22 moves to a position close to the slot 3, two circular slots 26 are respectively provided in two independent spaces of the conveying pipe 1, and four long strips 25 are evenly arranged on the outer sides of the two trays 27 inside the circular slots 26, and the long strips extend to the inner side of the box body 2. When the long strips 25 contact the paddle 22 each time, the second column 23 or the first column 4 is driven to rotate ninety degrees. In the initial state, the two ventilation holes 5 remain perpendicular to each other, that is, when the ventilation holes 5 on the first column 4 are connected to the inside of the box body 2, the ventilation holes 5 on the second column 23 are closed, and vice versa. The two ventilation holes 5 are in a state of being closed. In an open-closed state, the opening and closing time intervals of the two ventilation holes 5 are consistent, so that the naturally discharged gas is the same as the injected gas. In this way, the pressure inside the box 2 is maintained within a stable range and will not affect the painting work. At the same time, gas exchange is also used to deal with the accumulation of solvent gas. Gas exchange is a physical process that allows gas molecules to be transferred between different areas through mechanisms such as diffusion, convection or dissolution, thereby achieving concentration equilibrium. When solving the problem of solvent gas accumulation, gas exchange can effectively promote the diffusion of solvent gas in high-concentration areas to low-concentration areas or the outside world, thereby reducing local solvent gas concentrations and avoiding potential risks caused by gas accumulation.

[0067] The solvent gas contains organic vapors, which generally refer to organic compounds that easily evaporate into gases at room temperature. These vapors are often flammable and explosive, which means that they can form combustible or flammable mixtures with air under certain conditions, and may burn or explode when encountering an ignition source.

[0068] To this end, a rotatable activated carbon column 24 is arranged in an independent space on one side of the first column 4. The activated carbon column 24 has excellent adsorption properties and adsorbs organic vapor contained in the exhausted gas. The outer surface of the activated carbon column 24 is curved. Compared with the flat design, the curved surface can increase the contact area with the gas molecules. In this way, when the gas passes through the activated carbon column 24, it can adsorb these organic vapors and curb the harm of organic vapor at the source.

[0069] Secondly, in order to allow the outer surface of the activated carbon column 24 to uniformly contact and adsorb the organic vapor, a first transmission tooth 18 and a second transmission tooth 20 are respectively arranged at the bottom of the first column 4 and the activated carbon column 24 through a transmission shaft, and a chain 19 is arranged between the first transmission tooth 18 and the second transmission tooth 20. When the first column 4 is moved by the paddle 22, the kinetic energy is transferred to the first transmission tooth 18 through the second transmission tooth 20 and the chain 19. In this way, the activated carbon column 24 can rotate in the conveying pipeline 1, and the discharged organic vapor can pass through different positions of the activated carbon column 24, thereby improving the adsorption effect of the activated carbon column 24.

[0070] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A paint spraying device for flange processing, comprising a housing (2), a spray head assembly (6), and an upper cover (12) clamped on the upper portion, characterized in that: A support assembly and a transmission assembly (14) are installed at the bottom of the box body (2), and the transmission assembly (14) is located at the upper end of the support assembly; A plurality of support rods (7) are distributed in a circular array outside the transmission assembly (14), a gap is provided between the distal end of the support rod (7) and the inner wall of the box body (2), and the flange to be painted is placed on the upper end of the support rod (7), and the spray head assembly (6) is located above the support rod (7); A material turning assembly (10) is also provided on one side of the box body (2); A slot hole (3) is provided on one side of the box body (2), and a delivery pipe (1) extending outward is installed at the position of the slot hole (3). A partition plate (13) is vertically installed in the middle of the delivery pipe (1), and the partition plate (13) divides the interior of the delivery pipe (1) into two independent spaces. A solvent gas processing structure is rotatably arranged in the two independent spaces; The solvent gas processing structure comprises a toggle assembly, a first column (4), a second column (23) and a gas exchange hole (5); The first column (4) and the second column (23) are both rotatably arranged on both sides of the partition (13) through a toggle assembly, and the ventilation holes (5) are opened through the first column (4) and the second column (23). In an initial state, the ventilation holes (5) on the first column (4) and the second column (23) are arranged perpendicular to each other; The paddle assembly comprises a long strip (25), a circular groove (26), a tray (27), a straight plate (21) and a paddle (22); The circular groove (26) is formed at the bottom of the conveying pipe (1); the tray (27) is rotatably arranged on the inner side of the circular groove (26); the long strip (25) is arranged in a ring shape on the outer side of the tray (27); and the end of the long strip (25) extends to the outer side of the circular groove (26); the first column (4) and the second column (23) are respectively fixed on different trays (27); The straight plates (21) are distributed in an annular array below the outer gear ring (145), and the paddles (22) are installed on one side of the straight plates (21). When the paddles (22) rotate, the paddles (22) contact the long strips (25) on the inner sides of the two circular grooves (26), and drive the tray (27) to rotate; An activated carbon column (24) is rotatably arranged on one side of the delivery pipe (1), and the activated carbon column (24) and the first column (4) are located on the same side inside the delivery pipe (1), and an adjustment component is arranged between the bottom of the first column (4) and the bottom of the activated carbon column (24) for adjusting the position of the outer surface of the activated carbon column (24); The adjustment assembly comprises a first transmission tooth (18), a chain (19) and a second transmission tooth (20); The first transmission teeth (18) and the second transmission teeth (20) are respectively connected to the first column (4) and the activated carbon column (24) via a transmission shaft, and the chain (19) is sleeved on the outside of the first transmission teeth (18) and the second transmission teeth (20).

2. The paint spraying device for flange processing according to claim 1, characterized in that: The support assembly comprises a base (15), a guide rail (16) and a ball bearing (17); The base (15) is installed in a ring shape at the bottom of the box body (2), the guide rail (16) is opened at the upper part of the base (15), and the ball (17) is located in the guide rail (16).

3. The paint spraying device for flange processing according to claim 2, characterized in that: The transmission assembly (14) comprises a planetary gear (141), a sun gear (142), a second motor (143), a support plate (144), and an outer gear ring (145); The support plate (144) is connected to three planetary gears (141) via a rotating shaft; the outer gear ring (145) is located outside the three planetary gears (141); the second motor (143) is mounted on the other side of the support plate (144); the sun gear (142) is mounted on the end of the output shaft of the second motor (143); and the planetary gears (141) are respectively meshed with the sun gear (142) and the outer gear ring (145).

4. The paint spraying device for flange processing according to claim 3, characterized in that: An annular baffle (8) is installed at the upper edge of the outer gear ring (145), and a support tube (11) is installed at the lower end of the outer gear ring (145), and the lower end surface of the support tube (11) is in close contact with the outer surface of the ball (17).

5. The paint spraying device for flange processing according to claim 4, characterized in that: The material turning assembly (10) comprises a first motor (101), a housing (102), a push plate (103), a connecting shaft (104) and a through hole (105); The through hole (105) is vertically opened on the box body (2); the housing (102) is mounted on the outside of the box body (2); the first motor (101) is mounted on the housing (102); a connecting shaft (104) is fixed to the end of the output shaft of the first motor (101); the push plate (103) is mounted on the connecting shaft (104); and when the push plate (103) rotates, the push plate (103) passes through the through hole (105).

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