Automobile interior plastic part paint spraying waste gas treatment device

Abstract

The invention belongs to the technical field of paint spraying waste gas treatment, and particularly relates to an automobile interior plastic part paint spraying waste gas treatment device which comprises a device body, a conveying belt and a paint spraying assembly are installed in the device body, and workpieces are evenly installed at the top of the conveying belt; a paint spraying chamber is further arranged in the device body, the paint spraying chamber is installed in the device body, and the conveying belt conveys workpieces to penetrate through the paint spraying chamber. When a workpiece with a large surface area is subjected to paint spraying, the device machine body controls the multiple first driving pieces to operate through the controller, and the purpose that the multiple sliding blocks all move along the supporting columns where the sliding blocks are located is achieved; when a workpiece with the small surface area is subjected to paint spraying, the device body controls one or two first driving pieces to operate through the controller, the paint spraying work requirement of the workpiece with the small surface area is met while the movable paint spraying amount of the paint spraying assembly is reduced, the adjustability of the paint spraying chamber to the workpiece paint spraying range is improved, and practicability is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of paint spraying devices, in particular to a paint spraying waste gas treatment device for automobile interior plastic parts. Background Art

[0002] The main functions of automotive interior plastic spray painting include beautifying the appearance, protecting plastic parts, and improving scratch resistance and light aging resistance. Spray painting can not only improve the aesthetics of the car interior, but also extend the service life of plastic parts and reduce maintenance costs caused by aging, fading and other problems. When spraying paint on plastic parts, they need to go through the steps of trimming, cleaning, painting and drying. During the process, the following problems may be encountered: Anti-static: Plastic products are insulators with a surface resistance of 10^13 ohms. They are prone to static electricity, which absorbs fine dust in the air, causing the paint surface to be rough and not smooth, affecting the painting effect. Color difference and sagging: When using a spray gun to spray paint on plastic surfaces, if the amount of spraying is too little, it is easy for part of the plastic surface to be not covered by paint, resulting in color difference or unevenness on the surface, affecting the painting effect; if the amount of spraying is too much, under the influence of gravity, the paint will flow downward along the surface of vertically placed or hung plastic parts, forming streaks of paint flow marks on the surface, and then excessive sagging will occur, affecting the painting effect. Summary of the invention

[0003] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes a device for treating exhaust gas from spray painting of automobile interior plastic parts.

[0004] The technical solution adopted by the present invention to solve the technical problem is: the present invention proposes a device for treating waste gas from spray painting of automobile interior plastic parts, comprising a device body, in which a conveyor belt and a spray painting assembly are installed, and workpieces are evenly installed on the top of the conveyor belt; the device body also includes: A spray paint room, wherein the spray paint room is installed in the machine body, and a conveyor belt transports workpieces through the spray paint room; support columns are evenly arranged in the spray paint room, and a slider is slidably connected to the support column; a No. 1 driving member is installed on the slider, and the No. 1 driving member is used to drive the slider to slide along the support column; An exhaust gas purification module, which is installed in the paint spraying room and is used to absorb and purify the exhaust gas generated in the paint spraying room; A slide groove is provided on one side of the slider, and a slide column is provided in the slide groove, and the slide column is connected to the inner wall of one side of the slide groove by a spring; the part of the slide column extending out of the slide groove is rotatably connected to a paint spray box, and the paint spray assembly is installed in the paint spray box, and the nozzle in the paint spray assembly faces the workpiece; mounting frames are evenly arranged between the support column and the top of the paint spray room, the mounting frames are horizontally distributed, and a mold is installed in the mounting frames; ball bearings are evenly arranged near the two ends of the top of the paint spray box, and the ball bearings contact the surface of the mold; a drying chamber is installed on one side of the paint spray room, and the drying chamber is located on one side of the paint spray room.

[0005] Preferably, vibration damping plates are evenly provided on the surface of the sliding column near the top, and vibration damping bags are provided on the vibration damping plates, and air intake holes and air outlet holes are provided on the vibration damping bags; a vibration damping hole is opened in the paint spray box, the sliding column is located in the vibration damping hole, and the edge of the vibration damping plate contacts the inner wall of the vibration damping hole; vibration damping blocks are evenly provided on the inner wall of the vibration damping hole, and one side of the vibration damping blocks is connected to the vibration damping bag.

[0006] Preferably, a support plate is provided at the bottom of the support column, and a rotating shaft is evenly provided on the support plate, the rotating shaft is rotatably connected to the support plate through a torsion spring, and a rotating belt is sleeved on the rotating shaft; a cleaning cloth is provided on the rotating belt, and a No. 1 block and a No. 2 block are respectively provided on the surface of the rotating belt, the No. 1 block is fixedly connected to the rotating belt, and the No. 2 block is slidably connected to the rotating belt through a spring; when the No. 1 block is stationary in the initial position, the No. 1 block is located in the upper half of the rotating belt near one end, and the No. 2 block is located in the lower half of the rotating belt; an electromagnet is provided on the support plate, and the electromagnet is used to adsorb the No. 1 block, and the electromagnet is away from the No. 1 block in the initial position; a No. 1 sensor is provided on the support plate, and the No. 1 sensor is close to the No. 1 block in the initial position; when the No. 1 block is in the end position, the No. 2 block squeezes and triggers the No. 1 sensor, and controls the electromagnet to adsorb and fix the No. 1 block; extrusion blocks are evenly provided at the bottom of the paint spray box, and the extrusion blocks are respectively located on both sides of the nozzle in the paint spray assembly, and are used to squeeze the No. 1 block and the No. 2 block.

[0007] Preferably, the surface of the rotating belt is evenly provided with bristles, and the tops of the bristles are exposed outside the cleaning cloth; the bristles are in a circular ring shape, and the cross-section of the bristles is rectangular.

[0008] Preferably, a circular rotating plate is rotatably connected in the rotating belt, and the bristles are located on the rotating plate; a driving plate is provided on the supporting plate, and the outer ring of the rotating plate is meshed with the surface of the driving plate near the bottom.

[0009] Preferably, a cleaning tube is slidably connected to one side of the support plate through a spring, and the cleaning tube is in an inverted V-shape, the cleaning cloth is located at the top opening of the cleaning tube, and the inner wall and middle part of the cleaning tube close to block No. 2 contact the cleaning cloth; a nozzle is provided on the inner wall of the cleaning tube away from block No. 2, and the nozzle sprays cleaning liquid obliquely upward onto the cleaning cloth.

[0010] Preferably, a sealed door is provided in the paint spray box, and an electric telescopic rod is provided in the paint spray box; a lifting rod is slidably connected to the top of the sealed door in the paint spray box, and the top of the lifting rod is connected to the electric telescopic rod; a power supply is provided in the lifting rod, and a power-on block is provided near the bottom of the lifting rod, the power-on blocks are symmetrically distributed with the middle of the lifting rod as a reference, and the power-on block is connected to the power supply; a conductive block is provided between adjacent powered blocks, and the power supply supplies power to the conductive block through the power-on block.

[0011] Preferably, a grounding wire is provided on one side of the paint spray box, and the grounding wire is connected to the ground through metal, and one end of the grounding wire is close to the conductive block; the conveyor belt fixes the workpiece through metal, and the conveyor belt is grounded through a wire; storage grooves are evenly opened on the conductive block, and the storage grooves are staggered in the conductive block, and conductive rods are connected in the storage grooves through spring sliding, and the top of the conductive rods is inclined; the sealing door is a double-opening type; when the sealing door is opened, the sealing door swings to a vertical state outside the paint spray box, and the two sealing doors are located at both ends of the conductive block; when the sealing door is closed, the sealing door swings to a horizontal state inside the paint spray box.

[0012] Preferably, one end of the conductive rod is hinged to two extension rods through a torsion spring, and the two extension rods are symmetrically distributed with respect to the central axis of the conductive rod; a conductive net is sleeved on adjacent extension rods, and when the conductive block is energized, the conductive rod, the extension rod and the conductive net are all energized.

[0013] Preferably, a motor is provided on the side of the sealing door away from the conductive block, and the rotating end of the motor is hinged with a collision block via a torsion spring; and the bottom of the storage groove is arranged in an inclined shape.

[0014] The beneficial effects of the present invention are as follows: 1. The device for treating waste gas from painting of automobile interior plastic parts described in the present invention, when painting a workpiece with a larger surface area, the device body controls the operation of multiple No. 1 driving members through a controller, so that multiple sliders move along their respective support columns; when painting a workpiece with a smaller surface area, the device body controls the operation of one or two No. 1 driving members through a controller, thereby reducing the number of movement of the paint spraying components for painting, meeting the painting work requirements for workpieces with a smaller surface area, increasing the adjustability of the paint spraying room to the paint spraying range of the workpiece, and improving practicality.

[0015] 2. In the device for treating paint exhaust gas from automobile interior plastic parts described in the present invention, when the paint spray box passes through a raised portion on a mold, the slider slides on a support column, so that the slider moves in a straight line without deviation, and the paint spray box is guided and squeezed by the raised portion on the mold, driving the slide column to slide along the slide groove, causing the paint spray box to move on the slider toward the workpiece, driving the paint spray component to approach the recessed portion of the workpiece, thereby improving the stability of the distance between the paint spray component and the surfaces of various parts of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a stereogram of the present invention; Figure 2 is a cross-sectional view of the present invention in the front view direction; Figure 3 This is a schematic diagram of the paint room; Figure 4 It is a schematic diagram of the sliding column located in the vibration reduction hole; Figure 5 It is a stereogram of the slider; Figure 6 It is the state diagram when the rotating belt is at rest; Figure 7 It is a state diagram in which the extrusion block drives the rotating belt to rotate by extruding block No. 1; Figure 8 This is a state diagram of the extrusion block driving the belt to rotate and reset by extruding block No. 2; Fig. 9 When the rotating plate passes the rotating shaft Figure 7 Sectional view at AA in the middle; Fig.10 It is a state diagram when the rotating plate is engaged with the driving plate; Fig.11 This is a state diagram of the paint spray box when spraying the raised part of the workpiece; Fig.12 It is a cross-sectional view in one direction when the conductive block extends out of the spray paint box; Fig.13 It is a cross-sectional view in another direction when the conductive block extends out of the spray paint box; Fig.14 is a cross-sectional view of the conductive block in a three-dimensional state; Fig.15 It is a schematic diagram of the interior of the storage tank; In the figure: device body 1, conveyor belt 11, paint spraying assembly 12, paint spraying room 13, support column 14, slider 15, No. 1 driving member 16, slide chute 17, slide column 18, paint spraying box 19, mounting frame 2, mold 21, ball bearing 22, drying room 23, vibration damping plate 3, vibration damping bag 31, air suction hole 32, air outlet hole 33, vibration damping hole 34, vibration damping block 35, support plate 4, rotating shaft 41, rotating belt 42, cleaning cloth 43, No. 1 block 44, No. 2 block 45, electromagnet 46, No. 1 sensor 47, extrusion block 48, bristles 5, rotating plate 51, driving plate 52, cleaning pipe 53, nozzle 54, sealing door 6, electric telescopic rod 61, lifting rod 62, power supply 63, power block 64, conductive block 65, grounding wire 66, storage slot 7, conductive rod 71, extension rod 72, conductive net 73, motor 74, collision block 75. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: A device for treating waste gas from spray painting of automobile interior plastic parts, as shown in the accompanying drawings of the specification Figure 1-Figure 15 As shown, it includes a device body 1, and a conveyor belt 11 and a paint spraying assembly 12 are installed in the device body 1, and workpieces are evenly installed on the top of the conveyor belt 11; the conveyor belt 11 is a conventional conveying device used in the art to transport plastic parts for a series of operations such as painting, and the paint spraying assembly 12 is a conventional paint spraying device, including parts such as a nozzle; the device body 1 also includes: A spray booth 13 is installed in the machine body, and a conveyor belt 11 transports workpieces through the spray booth 13; support columns 14 are evenly arranged in the spray booth 13, and a slider 15 is slidably connected to the support column 14; a No. 1 driving member 16 is installed on the slider 15, and the No. 1 driving member 16 is used to drive the slider 15 to slide along the support column 14; the No. 1 driving member 16 is a conventional driving device, and the device body 1 contains a controller to control the operation of the No. 1 driving member 16; The exhaust gas purification module is installed in the paint spraying room, and the exhaust gas purification module is used to absorb and purify the exhaust gas generated in the paint spraying room 13; the exhaust gas purification module is composed of an activated carbon filter, and can also be composed of a UV light oxygen catalytic exhaust gas treatment component, and its working principle is: UV photolysis: The ultraviolet lamp emits a high-energy ultraviolet beam, which irradiates the molecular chains of organic or inorganic high-molecular odor compounds in the exhaust gas, breaking them into smaller molecular fragments; Photocatalytic oxidation: Under the irradiation of ultraviolet light, the photocatalyst is activated to produce a large number of active sites. Small molecular fragments undergo oxidation reactions with oxygen in the air to produce low-toxic or non-toxic substances, such as carbon dioxide and water; Ozone generation and synergistic effect: Ultraviolet light irradiates oxygen molecules in the air to generate ozone, which is a strong oxidant that can react with pollutants in the exhaust gas to accelerate the degradation and conversion process; A slide groove 17 is provided on one side of the slider 15, and a slide column 18 is provided in the slide groove 17, and the slide column 18 is connected to the inner wall of one side of the slide groove 17 by a spring; the part where the slide column 18 extends out of the slide groove 17 is rotatably connected to the paint box 19, and the paint spraying assembly 12 is installed in the paint spraying box 19, and the nozzle in the paint spraying assembly 12 faces the workpiece; mounting frames 2 are evenly arranged between the support column 14 and the top of the paint spraying room 13, the mounting frames 2 are horizontally distributed, and a mold 21 is installed in the mounting frame 2; ball bearings 22 are evenly arranged near the two ends of the top of the paint spraying box 19, and the ball bearings 22 contact the surface of the mold 21; a drying chamber 23 is installed on one side of the paint spraying room 13, and the drying chamber 23 is located on one side of the paint spraying room 13; the mold 21 matches the workpiece to be painted, and when the paint spraying box When the paint spray box 19 moves on the surface of the mold 21 through the ball bearing 22, if the paint spray box 19 drives the paint spray assembly 12 to pass through the concave part of the workpiece, the corresponding part of the mold 21 is a matching convex part, and the paint spray box 19 will sink when passing through, so as to keep the distance between the paint spray box 19 and the surface of the workpiece fixed, and improve the stability of the distance between the nozzle in the paint spray assembly 12 and the surface of the workpiece; if the workpiece is placed vertically, the unsolidified paint on the top of the workpiece or the excessive paint sprayed will flow downward under the influence of gravity, forming a sagging phenomenon; while the workpiece is placed horizontally, the surface area of ​​the workpiece where the paint can flow downward is reduced, which can reduce the flow distance of the paint, thereby slowing down the sagging phenomenon, improving the painting effect, and reducing the number of defective products caused by the sagging phenomenon; A vibration damping plate 3 is evenly arranged near the top of the surface of the sliding column 18, and a vibration damping bag 31 is arranged on the vibration damping plate 3, and an air intake hole 32 and an air outlet hole 33 are arranged on the vibration damping bag 31; a vibration damping hole 34 is opened in the paint spray box 19, the sliding column 18 is located in the vibration damping hole 34, and the edge of the vibration damping plate 3 contacts the inner wall of the vibration damping hole 34; vibration damping blocks 35 are evenly arranged on the inner wall of the vibration damping hole 34, and one side of the vibration damping block 35 is connected to the vibration damping bag 31; Specific work flow: During the operation of the spray booth 13, the air in the spray booth 13 is connected to the external exhaust fan and other electrical appliances for gas ejection through the exhaust gas purification module; after the polluted air enters the exhaust gas purification module, the exhaust gas purification module can use UV light irradiation and the action of the catalyst to decompose the organic matter in the exhaust gas into harmless substances, thereby achieving the effect of harmless emission; The staff installs the pre-treated workpiece on the conveyor belt 11, and then the conveyor belt 11 transports the workpiece into the spray booth 13; there are many types of automobile interior plastic parts, and they are of different sizes, such as workpieces with larger surface areas such as door inner guard plates, or workpieces with smaller surface areas such as center consoles; the spray booth 13 performs the following spraying methods for workpieces of different surface areas: When spraying paint on a workpiece with a larger surface area, the device body 1 controls the operation of multiple No. 1 driving members 16 through a controller, so that multiple sliders 15 move along their respective support columns 14, so that multiple paint spraying assemblies 12 move and spray paint at the same time, thereby expanding the spraying range and improving the spraying efficiency; When spraying paint on a workpiece with a smaller surface area, the device body 1 controls one or two No. 1 driving members 16 to operate through a controller, thereby reducing the number of movement of the paint spraying assembly 12 for spraying paint, meeting the spraying work requirements of the workpiece with a smaller surface area, reducing paint consumption, saving costs, and improving the ease of use of the paint spraying device; Through the above two examples of spraying paint, the adjustability of the spraying range of the workpiece by the spraying room 13 is increased, and the practicality is improved; and if a workpiece with a smaller surface area is treated by a larger spraying range, a small amount of paint is sprayed on the surface of the workpiece, and the excess atomized paint will diffuse on the surface of the workpiece that does not need to be painted or sprayed on parts such as the conveyor belt 11. After a period of time, the excess sprayed paint solidifies, which affects the assembly of the workpiece or the operation of the conveyor belt 11. Furthermore, when the workpiece is transported to the bottom of the paint spray box 19, it is left to wait for painting, and the No. 1 driving member 16 drives the paint spray box 19 to move through the slider 15, and the paint spray box 19 drives the paint spray assembly 12 to move, and the paint spray assembly 12 sprays paint on the surface of the workpiece through the internal nozzle; the slider 15 drives the slide column 18 to move through the slide groove 17, and the slide column 18 drives the paint spray box 19 to move on the surface of the mold 21 through the ball bearing 22; when the paint spray box 19 passes through the recessed part on the surface of the workpiece, the corresponding part of the mold 21 here is a matching raised part, and the paint spray box 19 will tilt downward when passing, like a downhill state, at this time, the paint spray box 19 carries the paint spray assembly 12 to spray one side of the recessed part of the workpiece surface in an inclined state; as the paint spray box 19 continues to move, the paint spray box 19 reaches the raised middle part of the mold 21, and the paint spray box 19 drives the paint spray assembly 12 to the surface of the workpiece The middle part of the concave part of the surface is sprayed with paint; then when the paint box 19 is about to move over the concave part, the paint box 19 moves obliquely upward, such as in an uphill state. At this time, the paint box 19 carries the paint spray assembly 12 to spray the other side of the concave part of the workpiece surface in another inclined state; the above method is the state in which the paint box 19 encounters the concave part of the workpiece. When the paint box 19 encounters the convex part of the workpiece, contrary to the above method, the paint box 19 first moves obliquely upward and then obliquely downward to spray the convex part of the workpiece; through the above-described method, the distance between the paint box 19 and the workpiece surface is kept fixed, so that the concave or convex part of the workpiece surface can also be evenly sprayed, thereby improving the stability of the distance between the nozzle in the paint spray assembly 12 and the workpiece surface, thereby improving the uniformity of the overall paint spraying on the workpiece surface, and avoiding excessive or insufficient spraying of concave or convex parts; When the paint box 19 passes through the raised part on the mold 21, the slider 15 slides on the support column 14, so that the slider 15 moves in a straight line without deviation, and the paint box 19 is guided and squeezed by the raised part on the mold 21, driving the slide column 18 to slide along the slide groove 17, showing that the paint box 19 moves on the slider 15 in the direction close to the workpiece, driving the paint assembly 12 to approach the recessed part of the workpiece, and improving the stability of the distance between the paint assembly 12 and the surfaces of various parts of the workpiece; the spring in the slide groove 17 is squeezed and contracted by the slide column 18, and after the paint box 19 passes over the raised part on the mold 21, the spring in the contracted state in the slide groove 17 stretches and recovers, driving the paint box 19 to reset, so that when the paint assembly 12 passes through the recessed part of the workpiece and is in a flat part, it is reset by the paint box 19, further improving the stability of the distance between the paint assembly 12 and the surfaces of various parts of the workpiece; When the paint spray box 19 moves to the raised part on the mold 21, the paint spray box 19 is guided by the surface of the raised part on the mold 21, and rotates with the slide post 18, that is, the slide post 18 is fixed and does not rotate, and the paint spray box 19 rotates; the paint spray box 19 drives the paint spray component 12 to rotate, and at this time, the inclined surface of the raised part on the mold 21 corresponds to the inclined surface of the recessed part on the workpiece, so the paint spray component 12 can spray paint to the recessed part on the workpiece while maintaining the required deflection angle, thereby improving the uniformity of the overall paint spraying on the workpiece surface, thereby improving the painting effect; and the deflection of the paint spray component 12 is affected by the surface of the mold 21 matched with the workpiece, and the paint spray component 12 does not deflect when it is located on the flat surface of the mold 21 and moves, but deflects when it is located on the uneven surface; Furthermore, after the primer is sprayed, the conveyor belt 11 transports the workpiece from the spray booth 13 to the drying chamber 23 for paint drying, and then proceeds to the next step; in addition, in order to improve the efficiency of spraying, the staff can divide the spraying components 12 in the spray booth 13 into different processes, for example, multiple spraying components 12 in the spray booth 13 are divided into two parts as needed, one part is used for spraying primer, and the other part is used for spraying topcoat; the actual spraying method is: after the spraying components 12 in a part of the spray booth 13 spray the primer on the workpiece, the workpiece enters the drying chamber 23 for drying, and then returns to the spray booth 13, moves to the bottom of the spraying component 12 for spraying topcoat, sprays the topcoat, and then transports the workpiece to the drying chamber 23 for drying, thereby shortening the time used for spraying, thereby improving the efficiency of spraying; When the paint spray box 19 deflects, the vibration-damping block 35 is driven to rotate through the vibration-damping hole 34. Since the slide column 18 does not rotate in the slide groove 17, the vibration-damping plate 3 and the vibration-damping bag 31 are fixed and do not rotate. The vibration-damping block 35 squeezes the vibration-damping bag 31, and the vibration-damping bag 31 exhausts air through the air outlet 33, which slows down the deflection speed of the paint spray box 19 and avoids the sudden deflection of the paint spray box 19, which causes the paint spraying assembly 12 to swing the paint and affect the painting work; when the paint spray box 19 is reset, the paint spray box 19 also slows down the deflection speed of the paint spray box 19 through the suction of the vibration-damping bag 31 , improve the painting effect of the paint spraying component 12, and avoid the splashing of the paint due to swinging; and, if there are dense decorative grooves and other parts on the surface of the workpiece, since the inclined area of ​​these decorative grooves is small, even if the paint spray box 19 does not deflect, it will not affect the spraying uniformity. By setting the vibration damping bag 31, the deflection amplitude of the paint spray box 19 passing through the dense decorative groove part of the workpiece is reduced, so as to achieve the effect of distinguishing the larger scattered concave parts and the smaller dense concave parts on the workpiece, thereby increasing the scope of application and thus improving the convenience of use.

[0020] Embodiment 2: Based on the first embodiment, as shown in the accompanying drawings of the specification Figure 2-Figure 15 As shown, a support plate 4 is provided at the bottom of the support column 14, and a rotating shaft 41 is evenly provided on the support plate 4. The rotating shaft 41 is rotatably connected to the support plate 4 through a torsion spring, and a rotating belt 42 is sleeved on the rotating shaft 41; a cleaning cloth 43 is provided on the rotating belt 42, and a No. 1 block 44 and a No. 2 block 45 are respectively provided on the surface of the rotating belt 42, the No. 1 block 44 is fixedly connected to the rotating belt 42, and the No. 2 block 45 is slidably connected to the rotating belt 42 through a spring; when the No. 1 block 44 is stationary in the initial position, the No. 1 block 44 is located at the upper half of the rotating belt 42 near one end, and the No. 2 block 45 is located at the lower half of the rotating belt 42; an electromagnet 46 is provided on the support plate 4, and the electromagnet 46 is used to adsorb the No. 1 block 44, The electromagnet 46 is away from the block 44 at the initial position; a sensor 47 is provided on the support plate 4, and the sensor 47 is close to the block 44 at the initial position; when the block 44 is at the end position, the block 45 squeezes and triggers the sensor 47, and controls the electromagnet 46 to adsorb and fix the block 44; the bottom of the spray paint box 19 is evenly provided with squeezing blocks 48, and the squeezing blocks 48 are respectively located on both sides of the nozzle in the spray paint assembly 12, for squeezing the block 44 and the block 45; the sensor 47 is a conventional pressure sensor, and the magnetic isolation treatment is performed at the position of the support plate 4 close to the electromagnet 46 to prevent the energization of the electromagnet 46 from affecting the support rod; The surface of the rotating belt 42 is evenly provided with bristles 5, and the tops of the bristles 5 are exposed outside the cleaning cloth 43; the bristles 5 are in a circular ring shape, and the cross section of the bristles 5 is a rectangle; A circular rotating plate 51 is rotatably connected in the rotating belt 42, and the bristles 5 are located on the rotating plate 51; a driving plate 52 is provided on the supporting plate 4, and the outer ring of the rotating plate 51 is meshed with the surface of the driving plate 52 near the bottom; A cleaning tube 53 is slidably connected to one side of the support plate 4 through a spring, and the cleaning tube 53 is in an inverted V shape. The cleaning cloth 43 is located at the top opening of the cleaning tube 53, and the inner wall and the middle part of the cleaning tube 53 close to the No. 2 block 45 contact the cleaning cloth 43; a nozzle 54 is provided on the inner wall of the cleaning tube 53 away from the No. 2 block 45, and the nozzle 54 sprays cleaning liquid obliquely upward to the cleaning cloth 43; the cleaning liquid is a conventional solution for cleaning paint nozzles; the top opening of the inverted V-shaped cleaning tube 53 contains three inner walls, namely the left inner wall, the middle inner wall and the right inner wall, wherein the left inner wall and the right inner wall do not contact the cleaning cloth 43, and the middle inner wall scratches the surface of the cleaning cloth 43; Specific working process: during the long-term spraying process of the paint spraying assembly 12, the paint on the nozzle part of the paint spraying assembly 12 gathers or condenses into blocks, affecting the normal operation of the nozzle in the paint spraying assembly 12; therefore, each time the paint spraying assembly 12 moves from one end of the support column 14 to the other end, the paint spraying box 19 drives the paint spraying assembly 12 to move above the rotating belt 42, and the extrusion block 48 on one side of the paint spraying assembly 12 drives the No. 1 block 44 to move by extrusion, and the No. 1 block 44 drives the rotating belt 42 to rotate on the rotating shaft 41, and the nozzle of the paint spraying assembly 12 contacts the surface of the cleaning cloth 43 and moves with it, and the No. 1 sensor 47 is not squeezed and controls the electromagnet 46 to be in a power-off state; the rotating belt 42 drives the second block 45 to move and flip to the upper part of the rotating belt 42, and contacts the first sensor 47, and the electromagnet 46 is energized to absorb the first block 44, so that the first block 44, the second block 45 and the rotating belt 42 remain stationary; then, during the process that the slider 15 drives the paint spraying assembly 12 to return to one end of the support column 14 through the paint spraying box 19, the nozzle of the paint spraying assembly 12 rubs against the surface of the cleaning cloth 43, and the cleaning cloth 43 wipes the nozzle of the paint spraying assembly 12, so that the paint spraying assembly 12 can be wiped after each reciprocating movement and spraying, thereby improving the cleanliness of the paint spraying assembly 12 when it works for a long time, reducing the additional operation of stopping for cleaning, and improving the painting efficiency; When the paint box 19 is on the return journey, the extrusion block 48 on the other side of the paint spraying assembly 12 squeezes and drives the No. 2 block 45 to slide on the stationary rotating belt 42, so that the No. 2 block 45 is away from the No. 1 sensor 47, causing the electromagnet 46 to be powered off and release the No. 1 block 44; the torsion spring on the rotating shaft 41 drives the rotating belt 42 to reverse and reset, while driving the No. 2 block 45 to reset to the lower half of the rotating belt 42, and the No. 1 block 44 to reset to the vicinity of the No. 1 sensor 47, thereby completing a nozzle cleaning work of the paint spraying assembly 12; By providing the annular bristles 5, when the nozzle of the paint spraying assembly 12 is cleaned and wiped by the cleaning cloth 43, if there are impurities that are too tightly adhered, the annular bristles 5 will cover the impurities when passing through the impurities, and the impurities will be dragged away and cleaned as the bristles 5 move, thereby further improving the cleanliness of the paint spraying assembly 12 and improving the painting effect; and, since the cross-section of the bristles 5 is rectangular, the edges or sharp parts on the bristles 5 are increased, thereby improving the sweeping ability and effect of the bristles 5, thereby improving the cleanliness of the paint spraying assembly 12 and improving the painting effect; When the nozzle of the paint spraying assembly 12 contacts the cleaning cloth 43, it is located above the rotating plate 51; in the process of the No. 1 block 44 driving the rotating belt 42 to rotate, while the rotating belt 42 carries the rotating plate 51 to move, since the outer ring of the rotating plate 51 is in meshing state with the driving plate 52 near the bottom position, the rotating plate 51 rotates while moving; the rotating plate 51 drives the cleaning cloth 43 and the bristles 5 at the top to rotate, and the rotating cleaning cloth 43 and the bristles 5 can improve the pre-cleaning effect of the nozzle of the paint spraying assembly 12, and clean it again during the return process of the paint spraying assembly 12, increase the number of cleaning times and methods, improve the cleaning effect of the nozzle of the paint spraying assembly 12, and thus improve the painting effect; and, the nozzle that has just been painted has more impurities, and it is wiped by rotating the fixed position to remove most of the impurities, and then the cleaning cloth 43 is used to move and wipe, so as to further improve the cleaning effect; When the rotating belt 42 carrying the cleaning cloth 43 reverses and resets, the nozzle 54 sprays cleaning liquid on the cleaning cloth 43 to fully wet the cleaning cloth 43, and then when the cleaning cloth 43 passes through the cleaning tube 53, the middle inner wall of the cleaning tube 53 scratches the surface of the cleaning cloth 43, removes impurities on the cleaning cloth 43, and squeezes out the moisture in the cleaning cloth 43, so that the paint absorbed in the cleaning cloth 43 is squeezed out with the cleaning liquid, further improving the cleanliness of the cleaning cloth 43, thereby improving the painting effect; and, when the rotating belt 42 drives the cleaning cloth 43 to rotate forward and prepare for wiping, the cleaning cloth 43 passes through the middle inner wall and the right inner wall of the cleaning tube 53 again, and squeezes the cleaning cloth 43 to remove residual impurities, and then wipes; in addition, when encountering impurities that are difficult to clean, the cleaning liquid sprayed by the nozzle 54 can be used to wet the cleaning cloth 43 first, and then the cleaning cloth 43 is wiped in a wet state to improve the cleaning effect.

[0021] Embodiment three: Based on the second embodiment, as shown in the accompanying drawings of the specification Figure 6-Figure 15As shown, a sealed door 6 is provided in the paint spray box 19, and an electric telescopic rod 61 is provided in the paint spray box 19; a lifting rod 62 is slidably connected above the sealed door 6 in the paint spray box 19, and the top of the lifting rod 62 is connected to the electric telescopic rod 61; a power supply 63 is provided in the lifting rod 62, and a power block 64 is provided near the bottom of the lifting rod 62, and the power blocks 64 are symmetrically distributed with the middle of the lifting rod 62 as a reference, and the power blocks 64 are connected to the power supply 63; a conductive block 65 is provided between adjacent powered blocks 64, and the power supply 63 supplies power to the conductive block 65 through the powered block 64; the electric telescopic rod 61 is a conventional telescopic drive device; the conductive block 65 is made of metal, and after being charged, the conductive block 65 attracts surrounding impurities through electrostatic action, causing them to adhere to the surface of the conductive block 65, thereby achieving a dust removal effect; A grounding wire 66 is provided on one side of the paint spray box 19, and the grounding wire 66 is connected to the ground through metal, and one end of the grounding wire 66 is close to the conductive block 65; the conveyor belt 11 fixes the workpiece through metal, and the conveyor belt 11 is grounded through a wire; the conductive block 65 is evenly provided with storage grooves 7, the storage grooves 7 are staggered in the conductive block 65, and the storage grooves 7 are connected to conductive rods 71 ​​by spring sliding, and the top of the conductive rods 71 ​​is inclined; the sealing door 6 is a double-opening type; when the sealing door 6 is opened, the sealing door 6 swings to a vertical state outside the paint spray box 19, and the two sealing doors 6 are located at both ends of the conductive block 65; when the sealing door 6 is closed, the sealing door 6 swings to a horizontal state inside the paint spray box 19; Specific work flow: When the workpiece moves along the conveyor belt 11, dust and other impurities may fall on its surface. The staff can choose to remove dust from the surface of the workpiece before painting the workpiece; the device body 1 controls the sealing door 6 to open, and the electric telescopic rod 61 drives the lifting rod 62 to descend and pass over the sealing door 6. The lifting rod 62 drives the conductive block 65 to descend and approach the workpiece through the power block 64, and then the power supply 63 supplies power to the conductive block 65 through the power block 64; then, the paint box 19 moves to drive the conductive block 65 to move, and the conductive block 65 is kept close to the surface of the workpiece through the paint box 19 to adsorb impurities on the surface of the workpiece; through electrostatic adsorption, air flow and other conditions are reduced to prevent impurities from spreading in the paint room 13 and affecting the paint effect; Moreover, when approaching the support plate 4, the electric telescopic rod 61 retracts to keep the conductive block 65 level with the top of the rotating belt 42, and then the paint spray box 19 continues to drive the conductive block 65 to move and contact the No. 1 block 44 and the cleaning cloth 43; before the conductive block 65 contacts the No. 1 block 44, the power supply 63 stops supplying power first, and then the conductive block 65 contacts the grounding wire 66, and squeezes and drives the grounding wire 66 to contact the No. 1 block 44, and the grounding wire 66 eliminates the static electricity remaining in the conductive block 65, weakens the adsorption force of the conductive block 65 on impurities, and the cleaning cloth 43 and the bristles 5 also clean the surface of the conductive block 65 in the same way as the cleaning nozzle, remove the impurities on the surface, reduce the residual impurities, and improve the dust removal ability of the conductive block 65, thereby improving the dust removal effect of the workpiece, and then improving the painting effect of the workpiece; and, since the conveyor belt 11 is also grounded, the workpiece can also be destaticized during the conveyor belt 11 transports the workpiece, avoiding the situation where the workpiece adsorbs more impurities due to static electricity, thereby improving the cleanliness of the workpiece, and then improving the painting effect of the workpiece; After the conductive block 65 passes through the sealing door 6, the conductive rod 71 is not blocked and extends out of the conductive block 65, thereby expanding the coverage area of ​​the conductive block 65 on the workpiece, thereby improving the dust removal ability and further improving the painting effect; when the conductive block 65 rises to be ready to be wiped by the cleaning cloth 43, the conductive block 65 moves between the two sealing doors 6, and the conductive rod 71 is squeezed by the top inclined surface of the sealing door 6 and retracts into the receiving groove 7.

[0022] Embodiment 4: Based on the third embodiment, as shown in the accompanying drawings of the specification Figure 6-Figure 15 As shown, one end of the conductive rod 71 is hinged to two extension rods 72 through a torsion spring, and the two extension rods 72 are symmetrically distributed with the central axis of the conductive rod 71 as a reference; a conductive net 73 is sleeved on the adjacent extension rods 72, and when the conductive block 65 is energized, the conductive rod 71, the extension rod 72 and the conductive net 73 are all energized; A motor 74 is provided on the side of the sealing door 6 away from the conductive block 65, and the rotating end of the motor 74 is hinged with a collision block 75 through a torsion spring; the bottom of the storage slot 7 is arranged in an inclined shape; Specific working process: when the conductive rod 71 extends out of the storage slot 7, the two extension rods 72 are not blocked by the inner wall of the storage slot 7 and swing away from each other until the conductive net 73 is opened; when the conductive block 65 is energized, the conductive rod 71, the extension rod 72 and the conductive net 73 are all charged, and the impurities on the surface of the workpiece are adsorbed, further increasing the dust removal range, thereby improving the dust removal efficiency, and then improving the painting efficiency; In addition, when wiping the conductive block 65, the collision block 75 is driven to rotate by starting the motor 74. The collision block 75 rotates and hits the conductive block 65, causing it to vibrate, thereby achieving the purpose of driving the conductive rod 71, the extension rod 72 and the conductive net 73 to vibrate; the impurities adsorbed on the conductive block 65, the conductive rod 71, the extension rod 72 and the conductive net 73 in the power-off state are vibrated and removed by vibration, thereby improving the cleaning degree; and the impurities that fall on the bottom of the storage groove 7 are gradually vibrated out of the storage groove 7 along the inclined bottom of the storage groove 7 during the continuous vibration of the conductive block 65, thereby completing the cleaning work and improving the cleaning degree, thereby improving the painting effect of the workpiece; after the collision block 75 hits the conductive block 65, the motor 74 continues to rotate, causing the hinge between the motor 74 and the collision block 75 to bend, so that the collision block 75 can pass over the conductive block 65.

Claims

1. A device for treating waste gas from spray painting of automobile interior plastic parts, comprising a device body (1), wherein a conveyor belt (11) and a spray painting assembly (12) are installed in the device body (1), and workpieces are evenly installed on the top of the conveyor belt (11); characterized in that: The device body (1) also includes: A paint spraying room (13), wherein the paint spraying room (13) is installed in a machine body, and a conveyor belt (11) transports workpieces through the paint spraying room (13); support columns (14) are evenly arranged in the paint spraying room (13), and a slider (15) is slidably connected to the support column (14); a first driving member (16) is installed on the slider (15), and the first driving member (16) is used to drive the slider (15) to slide along the support column (14); An exhaust gas purification module, the exhaust gas purification module being installed in the paint spraying room and being used for absorbing and purifying the exhaust gas generated in the paint spraying room (13); A slide groove (17), a slide groove (17) is provided on one side of the slider (15), and a slide column (18) is provided in the slide groove (17), and the slide column (18) is connected to the inner wall of one side of the slide groove (17) through a spring; the part of the slide column (18) extending out of the slide groove (17) is rotatably connected to a paint spray box (19), and the paint spray assembly (12) is installed in the paint spray box (19), and the nozzle in the paint spray assembly (12) faces the workpiece; mounting frames (2) are evenly provided between the support column (14) and the top of the paint spray room (13), the mounting frames (2) are horizontally distributed, and a mold (21) is installed in the mounting frames (2); ball bearings (22) are evenly provided near the two ends of the top of the paint spray box (19), and the ball bearings (22) contact the surface of the mold (21); a drying chamber (23) is installed on one side of the paint spray room (13), and the drying chamber (23) is located on one side of the paint spray room (13).

2. The exhaust gas treatment device for spray painting of automobile interior plastic parts according to claim 1 is characterized in that: A vibration damping plate (3) is evenly arranged near the top of the surface of the sliding column (18), and a vibration damping bag (31) is arranged on the vibration damping plate (3), and an air intake hole (32) and an air outlet hole (33) are arranged on the vibration damping bag (31); a vibration damping hole (34) is opened in the paint spray box (19), the sliding column (18) is located in the vibration damping hole (34), and the edge of the vibration damping plate (3) contacts the inner wall of the vibration damping hole (34); vibration damping blocks (35) are evenly arranged on the inner wall of the vibration damping hole (34), and one side of the vibration damping block (35) is connected to the vibration damping bag (31).

3. The exhaust gas treatment device for painting of automobile interior plastic parts according to claim 1 is characterized by: A support plate (4) is provided at the bottom of the support column (14), and a rotating shaft (41) is evenly provided on the support plate (4), the rotating shaft (41) is rotatably connected to the support plate (4) through a torsion spring, and a rotating belt (42) is sleeved on the rotating shaft (41); a cleaning cloth (43) is provided on the rotating belt (42), and a No. 1 block (44) and a No. 2 block (45) are respectively provided on the surface of the rotating belt (42), the No. 1 block (44) is fixedly connected to the rotating belt (42), and the No. 2 block (45) is slidably connected to the rotating belt (42) through a spring; when the No. 1 block (44) is stationary at the initial position, the No. 1 block (44) is located at a position close to one end of the upper half of the rotating belt (42), and the No. 2 block (45) is located at the lower half of the rotating belt (42); The support plate (4) is provided with an electromagnet (46), and the electromagnet (46) is used to absorb the No. 1 block (44), and the electromagnet (46) is far away from the No. 1 block (44) at the initial position; the support plate (4) is provided with a No. 1 sensor (47), and the No. 1 sensor (47) is close to the No. 1 block (44) at the initial position; when the No. 1 block (44) is at the end position, the No. 2 block (45) squeezes and triggers the No. 1 sensor (47), and controls the electromagnet (46) to absorb and fix the No. 1 block (44); the bottom of the spray paint box (19) is evenly provided with squeezing blocks (48), and the squeezing blocks (48) are respectively located on both sides of the nozzle in the spray paint assembly (12), and are used to squeeze the No. 1 block (44) and the No. 2 block (45).

4. The exhaust gas treatment device for spray painting of automobile interior plastic parts according to claim 3 is characterized by: The surface of the rotating belt (42) is evenly provided with bristles (5), and the tops of the bristles (5) are exposed outside the cleaning cloth (43); the bristles (5) are in a circular ring shape, and the cross section of the bristles (5) is rectangular.

5. The exhaust gas treatment device for painting of automobile interior plastic parts according to claim 4 is characterized in that: A circular rotating plate (51) is rotatably connected inside the rotating belt (42), and the bristles (5) are located on the rotating plate (51); a driving plate (52) is provided on the supporting plate (4), and the outer ring of the rotating plate (51) is meshed with the surface of the driving plate (52) near the bottom.

6. The exhaust gas treatment device for painting of automobile interior plastic parts according to claim 5 is characterized by: A cleaning tube (53) is slidably connected to one side of the support plate (4) via a spring, and the cleaning tube (53) is in an inverted V shape. The cleaning cloth (43) is located at the top opening of the cleaning tube (53), and the cleaning tube (53) is close to the inner wall and middle part of the second block (45) and contacts the cleaning cloth (43). A nozzle (54) is provided on the inner wall of the cleaning tube (53) away from the second block (45), and the nozzle (54) sprays cleaning liquid obliquely upward onto the cleaning cloth (43).

7. The exhaust gas treatment device for painting of automobile interior plastic parts according to claim 3 is characterized by: The paint spray box (19) is provided with a sealed door (6) and an electric telescopic rod (61) in the paint spray box (19); a lifting rod (62) is slidably connected above the sealed door (6) in the paint spray box (19), and the top of the lifting rod (62) is connected to the electric telescopic rod (61); a power supply (63) is provided in the lifting rod (62), and a power supply block (64) is provided near the bottom of the lifting rod (62), the power supply blocks (64) are symmetrically distributed with the middle of the lifting rod (62) as a reference, and the power supply blocks (64) are connected to the power supply (63); a conductive block (65) is provided between adjacent conductive blocks (64), and the power supply (63) supplies power to the conductive block (65) through the conductive block (64).

8. The exhaust gas treatment device for painting of automobile interior plastic parts according to claim 7 is characterized by: A grounding wire (66) is provided on one side of the spray paint box (19), and the grounding wire (66) is connected to the ground through metal, and one end of the grounding wire (66) is close to the conductive block (65); the conveyor belt (11) fixes the workpiece through metal, and the conveyor belt (11) is grounded through a wire; the conductive block (65) is evenly provided with receiving grooves (7), the receiving grooves (7) are staggeredly arranged in the conductive block (65), and the receiving grooves (7) are slidably connected to conductive rods (71) through springs, and the top of the conductive rods (71) is inclined; the sealing door (6) is a double-opening type; when the sealing door (6) is opened, the sealing door (6) swings to a vertical state outside the spray paint box (19), and the two sealing doors (6) are located at both ends of the conductive block (65); when the sealing door (6) is closed, the sealing door (6) swings to a horizontal state inside the spray paint box (19).

9. The exhaust gas treatment device for painting of automobile interior plastic parts according to claim 8 is characterized by: One end of the conductive rod (71) is hinged to two extension rods (72) via a torsion spring, and the two extension rods (72) are symmetrically distributed with the central axis of the conductive rod (71) as a reference; a conductive net (73) is sleeved on adjacent extension rods (72), and when the conductive block (65) is energized, the conductive rod (71), the extension rod (72) and the conductive net (73) are all energized.

10. The exhaust gas treatment device for painting of automobile interior plastic parts according to claim 9, characterized in that: A motor (74) is provided on the side of the sealing door (6) away from the conductive block (65), and the rotating end of the motor (74) is hingedly connected to a collision block (75) via a torsion spring; the bottom of the storage groove (7) is arranged in an inclined shape.

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