A kind of construction site metal member's paint spraying and drying automation system and construction method

Abstract

The present application relates to a pollution-free environment-friendly paint spraying process, in particular to a paint spraying and drying automatic system for metal components at construction site and a construction method. The present application has a simple and quick construction process, guarantees the smooth progress of the project, greatly saves the transportation cost and time cost, and has good economic benefits. The paint spraying operation at the construction site is pollution-free, and after the paint spraying operation is completed, all equipment and workpieces can be recycled and reused, and there is no foundation residue, air and soil pollution at the construction site, which has good ecological environmental benefits. The paint spraying process is automatically operated, and manual intervention is not required, which avoids the harm to the operators during the paint spraying process and has good health benefits.

Description

TECHNICAL FIELD

[0001] The present application relates to a pollution-free and environmentally friendly paint spraying process, in particular to a paint spraying and drying automatic system for metal components at a construction site and a construction method. BACKGROUND

[0002] It is a very realistic issue for all industries to solve the problem of balancing economic development and environmental protection. For the construction and installation industry, environmental protection is an unavoidable practical problem. The construction of a project requires a large amount of paint spraying work on site, especially open-air paint spraying work at the construction site, which causes serious environmental pollution. The environmental protection department manages this work very strictly, which often leads to the obstruction of paint spraying work and the smooth progress of the entire project. If paint spraying work is carried out in a special paint spraying workshop, it will result in long-distance transportation costs and time costs of metal components, and harm to the workers during the paint spraying process.

[0003] If mechanical paint spraying is carried out on site, a paint spraying workshop needs to be built, and environmental protection needs to be considered. In addition, the traditional workshop or house must have a stable foundation, otherwise the entire workshop cannot be firmly attached to the foundation. The foundation of the traditional workshop or house adopts the pouring concrete process. However, the workshop built on site is temporary. If the traditional workshop or house foundation is used, the disassembly of the workshop after the completion of the project is a difficult problem. It is more difficult to deal with the concrete foundation of the workshop. In the past, these concrete foundations were crushed by a breaker and then dumped in an empty area. However, in recent years, with the emphasis on environmental protection, the construction site is very eager to develop a new type of detachable workshop foundation to solve this industry problem. In view of this situation, our company has developed a paint spraying and drying automatic system for metal components at a construction site to solve this practical problem. The main structure is a detachable and environmentally friendly workshop, which is mainly used for pollution-free paint spraying of platform railings with a large amount of current use. SUMMARY

[0004] According to the above deficiencies in the prior art, the technical problem to be solved by the present application is to provide a paint spraying and drying automatic system for metal components at a construction site and a construction method to solve the above problems.

[0005] The automated painting and drying system for metal components at construction sites described in this invention includes a detachable, environmentally friendly, sealed painting module. This module comprises a sealed spray booth and internal component conveying devices, a painting device, and a drying device. The sealed spray booth is divided into a painting chamber and a drying chamber. The entrance and exit of the sealed spray booth, as well as the connecting opening between the painting and drying chambers, are equipped with annular sealed air ducts. Several sealed nozzles facing inwards are densely arranged on the annular sealed air ducts. When air is sprayed, a sealed air wall is formed, preventing the leakage of atomized paint particles from the painting chamber. This system uses invisible sealed air walls instead of physical sealed doors, without affecting the normal entry and exit of metal components and the conveyor belt, perfectly solving the problem of sealing atomized paint particles within the working chamber. The painting and drying chambers are each connected to a negative pressure dust removal device. Under the action of the negative pressure dust removal device, the working chamber is in a slightly negative pressure state, further preventing the leakage of atomized paint particles from the entrance and exit, and allowing the collection of atomized paint particles within the working chamber, thus avoiding environmental pollution.

[0006] The annular sealed air duct has two rows of sealing nozzles distributed on it, such as... Figure 3 , 16 As shown in Figure 17, the two rows of sealed nozzles are tilted to both sides, and the included angle α between the axes of the two rows of sealed nozzles is 1~10°. When the mist-like paint particles in the working chamber reach the inlet and outlet, they can be blown back by the inwardly tilted air-sealed wind wall. Even if a small amount of mist-like paint particles overflow from the first layer of sealed wind wall (i.e., the inwardly tilted air-sealed wind wall), they will be trapped in the stable vortex formed between the two layers of sealed wind walls, further preventing the leakage of mist-like paint particles.

[0007] The component conveying device described in this invention is a paint spraying conveyor that runs through the front and back of a sealed paint booth. The paint spraying conveyors are arranged on both sides of the component conveying channel. Each paint spraying conveyor includes two parallel conveyor chains, which improves the conveying stability while reducing the overall weight of the equipment.

[0008] The painting device described in this invention is a truss painting robot, which includes a pair of angled spray guns connected to the piston rods of a lifting cylinder with adjustable height. The top of the lifting cylinder is fixed to a horizontal sliding block, which is mounted on the truss via a gear and rack mechanism. The truss is mounted on slide rails on both sides via the gear and rack mechanism, and the slide rails are fixed to the top of a column. The bottom of the column is fixed to the bottom plane of the painting chamber. During operation, the angled spray guns move left and right and follow the conveying speed of the painting conveyor to complete the painting operation on the metal components. After painting one metal component, the robot returns to its initial position and begins painting the next metal component.

[0009] The drying device is an S-shaped drying air pipe, a plurality of drying nozzles towards the indoor are distributed on the S-shaped drying air pipe at equal intervals, the S-shaped drying air pipe is provided with three groups, and is arranged on the left and right inner walls and the bottom plane of the drying working chamber respectively, so that the drying area is increased; and the S-shaped drying air pipe is connected with external high-pressure air.

[0010] The drying nozzle comprises a drying nozzle outer cover, a transition joint with a helical groove on the inner wall, a drying joint base and a throttling orifice plate, the drying joint base is fixed on the drying main pipe of the S-shaped drying air pipe, the transition joint with the helical groove on the inner wall is arranged on the drying joint base, the throttling orifice plate is arranged between the base and the transition joint, the transition joint is provided with the drying nozzle outer cover, and a plurality of drying nozzles are arranged on the drying nozzle outer cover; the inner wall of the transition joint is conical, the inner diameter of the transition joint increases from small to large along the flow direction of the airflow, the position of the drying nozzle on the drying nozzle outer cover is matched with the largest inner diameter of the transition joint, and the distribution tracks of the plurality of drying nozzles form a ring shape. The drying nozzle adopts spiral scattering to reasonably distribute the drying air, so that the heated air can well dry the paint film of the metal component, and the fast, uniform and reasonable hot air is an important condition for the fast and uniform drying of the paint film of the metal component. The specific principle is as follows: after the drying hot air passes through the throttling orifice on the throttling orifice plate, the jet force and the jet speed are increased, the drying air flow spirally rises through the helical groove on the inner wall of the transition joint, the flow rate of the air flow is reduced due to the increase of the volume inside the transition joint, and the drying air flow becomes more uniform and is scattered after entering the inclined nozzle on the nozzle (the inclination of the inclined nozzle is consistent with the inclination of the helical groove, so that the airflow out of the nozzle is more smooth) and becomes more uniform and is scattered, the airflow is uniformly and reasonably distributed in the second working chamber, a very good drying effect can be achieved in a short time, and energy waste caused by high-temperature drying and large heat production to achieve the same drying effect is avoided.

[0011] The sealing nozzle comprises a sealing linear nozzle, a sealing nozzle outer cover, a transition joint and a sealing joint base, the sealing joint base is fixed on the sealing door main pipe of the annular sealing air pipe, the transition joint is arranged on the sealing joint base, the sealing nozzle outer cover is arranged on the transition joint, and the sealing linear nozzle in the shape of a Chinese character is arranged on the sealing nozzle outer cover.

[0012] In the present application, the feeding gantry crane, the feeding conveyor and the feeding transition device are sequentially arranged in front of the detachable environment-friendly sealing paint spraying module, and the discharging transition device, the discharging conveyor and the discharging gantry crane are sequentially arranged behind the detachable environment-friendly sealing paint spraying module; the feeding and discharging transition devices each comprise a transition sliding plate and a deviation rectifying stopper, the transition sliding plate is inclined in an initial state and can be turned around the shaft under the action of a driving motor; the deviation rectifying stopper is arranged on one side of the transition sliding plate, and the top end of the deviation rectifying stopper is higher than the upper plane of the transition sliding plate by a certain height. Figure 11When the metal component slides from the feeding conveyor to the paint spraying conveyor or from the paint spraying conveyor to the discharging conveyor, in order to avoid the component deflection caused by the different movement of the two ends of the metal component, affecting the subsequent paint spraying process, a correction stopper is arranged on one side of the transition slide plate. When the support crossbar of the metal component slides off the transition slide plates on both sides, it is blocked by the correction stoppers on both sides, so that the two ends of the metal component are synchronized, and then the transition slide plate is flipped around the shaft under the action of the driving motor, so that the upper surface of the transition slide plate is flush with or higher than the top end of the correction stopper, the inclination angle of the transition slide plate is increased, and the metal component is quickly and smoothly slid onto the next transmission mechanism, so that the two ends of the metal component are synchronized on the two conveying mechanisms, and the working needs of the subsequent paint spraying process are met.

[0013] The sealing paint spraying room comprises a detachable foundation and a detachable room body. The detachable foundation comprises a bottommost natural paving tile layer, and a steel structure framework is arranged above the tile layer. The steel structure framework is composed of longitudinal connecting channel steel, transverse through channel steel, channel steel supports and square tubes. Adjacent transverse through channel steels are connected together through longitudinal connecting channel steels on both sides. A plurality of groups of parallel square tubes are arranged between adjacent transverse through channel steels. The two ends of the square tubes are supported by the channel steel supports. The channel steel supports are arranged through the transverse through channel steel. The upper top surfaces of the longitudinal connecting channel steel, the transverse through channel steel and the square tube are flush. A metal pattern plate is arranged above the steel structure framework. The detachable room body is assembled by color steel plates or rock wool composite boards. Cables or cable wind ropes are arranged on the left and right sides of the room body to enhance the wind resistance of the detachable factory building. Quick plug-in boards are arranged on the side surfaces of the room body to quickly connect pipelines such as circuits and gas circuits in a standardized manner.

[0014] The construction method of the construction site metal component paint spraying and drying automatic system comprises the following steps:

[0015] S1, laying a tile layer on the ground: no cement or adhesive is needed during laying, and a natural laying method is adopted;

[0016] S2, assembling and connecting the steel structure framework: placing the channel steel supports into the corresponding groove holes in the transverse through channel steel, so that the channel steel supports have protruding parts on the front and back surfaces of the transverse through channel steel. After adjustment, welding and fixation are performed. The square tubes are placed between adjacent transverse through channel steels and supported by the channel steel supports. The longitudinal connecting channel steels are connected to the two ends of the transverse through channel steel by high-strength bolts. Finally, the adjacent longitudinal connecting channel steels are connected by high-strength bolts. The metal pattern plate is laid on the steel structure framework and fixed on the longitudinal connecting channel steels on both sides and the transverse through channel steels at the front and back ends by high-strength bolts.

[0017] S3, the fixed conveying device and the paint spraying device: the steel structure skeleton completed in S is placed on the floor tile layer, after positioning, the bottom of the paint spraying conveyor and the truss paint spraying mechanical arm is fixed on the metal pattern plate by bolts; the S-shaped drying air pipe at the bottom is laid and installed at the position of the drying working chamber;

[0018] S4, the forming house body: the color steel plate or rock wool composite plate house body is assembled and formed, the inhaul cable or cable wind rope is installed on both sides of the house body, one end is connected with the side plate of the house body, the other end is connected with the ground anchor point, so that the wind resistance of the detachable factory building is enhanced; the quick plug-in board is installed on the reserved position of the color steel plate or rock wool composite plate on the side of the house body, the annular sealing air pipe is installed between the entrance and exit of the house body and the communication port between the two working chambers, and the S-shaped drying air pipe is hung on the inner wall on both sides of the drying working chamber;

[0019] S5, system connection forming: the feeding gantry crane, the feeding conveyor, the feeding transition device, the discharging transition device, the discharging conveyor and the discharging gantry crane are placed in position, and the negative pressure dust removal device is connected with the color steel plate or rock wool composite plate house body;

[0020] S6, the system disassembly after paint spraying: after the on-site paint spraying of the metal component is completed, the system is disassembled in the reverse order of the system assembly construction, finally the floor tiles are recycled and reused, and there is no foundation residue, air pollution and soil pollution on the site.

[0021] Compared with the prior art, the paint spraying and drying automatic system and the construction method of the metal component on the construction site have the following beneficial effects:

[0022] The paint spraying and drying automatic system and the construction method of the metal component on the construction site have the following beneficial effects:

[0023] The paint spraying operation on the site component is pollution-free, and after the paint spraying operation is completed, all the equipment and workpieces can be recycled and reused, and there is no foundation residue, air pollution and soil pollution on the site, which has good ecological environmental benefits;

[0024] The paint spraying process is automatically operated, manual intervention is not needed in the paint spraying room, the harm to the operating personnel caused by the paint spraying process is avoided, and good health benefits are obtained. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the overall structure schematic view of the system workpiece entering side view angle;

[0026] Figure 2 It is the overall structure schematic view of the system workpiece output side view angle;

[0027] Figure 3Figure 1 is a perspective view of the detachable environmentally friendly sealed paint spraying module and negative pressure dust removal device;

[0028] Figure 4 Figure 2 is a perspective view of the detachable environmentally friendly sealed paint spraying module and negative pressure dust removal device;

[0029] Figure 5 Figure 3 is a perspective view of the internal structure of the detachable environmentally friendly sealed paint spraying module;

[0030] Figure 6 Figure 4 is a side view of the internal structure of the detachable environmentally friendly sealed paint spraying module;

[0031] Figure 7 Figure 5 is a front view of the detachable environmentally friendly sealed paint spraying module and negative pressure dust removal device;

[0032] Figure 8 Figure 6 is a layout view of the paint spraying conveyor, truss paint spraying mechanical arm and S-shaped drying air pipe;

[0033] Figure 9 Figure 7 is a perspective view of the cooperation structure of the metal member-platform railing and support crossbar;

[0034] Figure 10 Figure 8 is a side view of the cooperation structure of the metal member-platform railing and support crossbar;

[0035] Figure 11 Figure 9 is a schematic view of the structural principle of the transition device;

[0036] Figure 12 Figure 10 is a schematic view of the structure of the drying spray head;

[0037] Figure 13 Figure 11 is a top view of the drying spray head;

[0038] Figure 14 Figure 12 is a schematic view of the structure of the sealed spray head;

[0039] Figure 15 Figure 13 is a top view of the sealed spray head;

[0040] Figure 16 Figure 14 is a schematic view of the layout structure of the sealed spray head on the main pipe of the sealing door;

[0041] Figure 17 Figure 15 is a schematic view of the principle of the sealed air wall avoiding leakage of misty paint particles;

[0042] Figure 18 Figure 16 is a schematic view of the naturally laid tile layer;

[0043] Figure 19 Figure 17 is a schematic view of the steel structure framework;

[0044] Figure 20is the assembly diagram of the floor, steel structure skeleton and metal pattern plate;

[0045] Figure 21 is the structure diagram after installing the paint spraying conveyor, truss paint spraying manipulator, S-shaped drying air pipe and house skeleton on the detachable foundation;

[0046] Figure 22 is the structure diagram of the assembled detachable environment-friendly sealed paint spraying module;

[0047] Figure 23 is the structure diagram of the ear ring fixing device of the cable or cable wind rope connected with the wall.

[0048] In the figure: the upper feeding gantry crane 1; the feeding conveyor 2; the feeding transition device 3; the detachable environment-friendly sealed paint spraying module 4; the discharging transition device 5; the discharging conveyor 6; the discharging gantry crane 7; the negative pressure dust removal device 8; the metal component 9; the sealed paint spraying house 10; the paint spraying working chamber 10.1; the drying working chamber 10.2; the annular sealed air pipe 11; the quick-connection plugboard 12; the cable 13; the paint spraying conveyor 14; the truss paint spraying manipulator 15; the oblique pair of spraying guns 15.1; the lifting air cylinder 15.2; the transverse sliding block 15.3; the truss 15.4; the sliding rail 15.5; the stand column 15.6; the S-shaped drying air pipe 16; the annular partition air pipe 17; the supporting cross rod 18; the deviation rectification stopper 19; the drying nozzle 20; the drying nozzle cover 21; the transition joint with spiral groove 22; the drying joint base 23; the spiral groove 24; the orifice plate 25; the drying main pipe 26; the sealed linear nozzle 27; the sealed nozzle cover 28; the transition joint 29; the sealed joint base 30; the sealed door main pipe 31; the floor 32; the longitudinal connecting channel steel 33; the transverse through channel steel 34; the channel steel support 35; the square tube 36; the metal pattern plate 37; the transition sliding plate 38. DETAILED DESCRIPTION

[0049] In the description of the present application, it should be further explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "linkage", "communication" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The construction site metal component paint spraying and drying automatic system described in the embodiment, such as Figure 3 、 4, 5, comprising a detachable environmentally friendly sealed paint spraying module 4, the detachable environmentally friendly sealed paint spraying module 4 comprising a sealed paint spraying room 10 and its internal component conveying device, paint spraying device and drying device; the inside of the sealed paint spraying room 10 is divided into a paint spraying working chamber 10.1 and a drying working chamber 10.2, and the entrances of the sealed paint spraying room 10, the communication openings between the paint spraying working chamber 10.1 and the drying working chamber 10.2 are all provided with annular sealing air pipes 11; as shown in Figure 3 、 16 , a plurality of sealed nozzles facing the annular interior are closely arranged on the annular sealing air pipe 11, the sealed nozzles are arranged in two rows and are inclined to the two sides respectively, and the included angle α between the axes of the two rows of sealed nozzles is 1-10°; as shown in Figure 14 、 15 , the sealed nozzle comprises a sealed linear nozzle 27, a sealed nozzle outer cover 28, a transition joint 29 and a sealed joint base 30, the sealed joint base 30 is fixed on a sealing door main pipe 31 of the annular sealing air pipe 11, the transition joint 29 is arranged on the sealed joint base 30, the sealed nozzle outer cover 28 is arranged on the transition joint 29, and the sealed linear nozzle 27 in the shape of a Chinese character is arranged on the sealed nozzle outer cover 28, so that a sealed air wall without omission is formed, and a good sealing effect is achieved.

[0050] Among them, the component conveying device is a paint spraying conveyor 14 penetrating through the sealed paint spraying room 10 before and after, as shown in Figure 5 、 6 , 7, 8, the paint spraying conveyor 14 is arranged on both sides of the component conveying channel, and each paint spraying conveyor 14 comprises two parallel conveying chains, the conveying belt is composed of metal single plates arranged on the conveying chains, the stability of conveying is improved, and the overall weight of the equipment is reduced.

[0051] As shown in Figure 5 、 6 , 7, 8, the paint spraying device is a truss paint spraying manipulator 15, the truss paint spraying manipulator 15 comprises a pair of oblique pair spraying guns 15.1, the oblique pair spraying guns 15.1 are connected to the piston rod of a lifting cylinder 15.2, the top of the lifting cylinder 15.2 is fixed to a horizontal moving slider 15.3, the horizontal moving slider 15.3 is arranged on a truss 15.4 through a gear and rack mechanism, the truss 15.4 is arranged on the slide rails 15.5 on both sides through a gear and rack mechanism, the slide rails 15.5 are fixed to the top end of a vertical column 15.6, and the bottom of the vertical column 15.6 is fixed to the bottom plane of the paint spraying working chamber 10.1. During work, the oblique pair spraying guns 15.1 move left and right and follow the conveying speed of the paint spraying conveyor to complete the paint spraying work for the metal components,

[0052] As shown in Figure 5 、 6As shown in Figure 8, the drying device is an S-shaped drying air duct 16. Three sets of S-shaped drying air ducts 16 are respectively installed on the left and right inner walls and the bottom plane of the drying chamber 10.2 to increase the drying area. The S-shaped drying air ducts 16 are connected to external high-pressure air. Figure 12 , 13 As shown, the S-shaped drying duct 16 has several drying nozzles facing the room. Each drying nozzle includes a drying nozzle cover 21, a transition section 22 with a spiral groove on its inner wall, a drying connector base 23, and a throttling orifice plate 25. The drying connector base 23 is fixed to the main drying pipe 26 of the S-shaped drying duct 16. The drying connector base 23 is equipped with the transition section 22 with a spiral groove on its inner wall. A throttling orifice plate 25 is provided between the base and the transition section. The drying nozzle cover 21 is installed on the transition section, and several drying nozzles 20 are provided on the drying nozzle cover 21. The inner wall of the transition section is conical, and the inner diameter of the transition section increases from small to large according to the airflow direction. The position of the drying nozzles 20 on the drying nozzle cover 21 is adapted to the maximum inner diameter of the transition section. The distribution trajectory of the several drying nozzles 20 forms a ring.

[0053] like Figure 3 , 4 As shown, the spray painting chamber 10.1 and the drying chamber 10.2 are respectively connected to a negative pressure dust removal device 8. In this embodiment, the negative pressure dust removal device 8 is a bag filter.

[0054] like Figure 1 , 2 As shown, a feeding gantry crane 1, a feeding conveyor 2, and a feeding transition device 3 are sequentially arranged before the detachable environmentally friendly sealing paint spraying module 4; a discharging transition device 5, a discharging conveyor 6, and a discharging gantry crane 7 are sequentially arranged after the detachable environmentally friendly sealing paint spraying module 4. Figure 11 As shown, both the feeding and discharging transition devices include a transition slide plate 38 and a correction lever 19. The transition slide plate 38 is tilted in its initial state and can rotate around its axis under the action of the drive motor. The correction lever 19 is located on one side of the transition slide plate 38, and the top of the correction lever 19 is higher than the upper surface of the transition slide plate 38.

[0055] like Figures 18~23As shown, the sealing paint spraying room 10 comprises a detachable base and a detachable room body. The detachable base comprises a bottommost natural paving tile layer 32, and a steel structure framework is arranged above the tile layer 32. The steel structure framework is composed of longitudinal connecting channel steel 33, transverse through channel steel 34, channel steel support 35 and square tube 36. Adjacent transverse through channel steels 34 are connected together through the longitudinal connecting channel steels 33 on both sides. A plurality of groups of parallel square tubes 36 are arranged between adjacent transverse through channel steels 34. The both ends of the square tubes 36 are supported by the channel steel supports 35. The channel steel supports 35 are arranged through the transverse through channel steels 34. The top surfaces of the longitudinal connecting channel steels 33, the transverse through channel steels 34 and the square tubes 36 are flush. A metal pattern plate 37 is arranged above the steel structure framework. The detachable room body is assembled by color steel plates or rock wool composite plates. The room body is provided with a cable 13 or a cable wind rope on the left and right sides to enhance the wind resistance of the detachable factory building. Quick plug-in boards 12 are arranged on the side of the room body to standardize and quickly connect pipelines such as circuits and air circuits.

[0056] The construction method of the construction site metal component paint spraying and drying automatic system of the embodiment comprises the following steps:

[0057] S1, laying a tile layer 32 on the ground: no cement or adhesive is needed during laying, and a natural laying method is adopted;

[0058] S2, assembling and connecting the steel structure framework: placing the channel steel support 35 into the corresponding groove hole on the transverse through channel steel 34 so that the channel steel support 35 has protruding parts on the front and back surfaces of the transverse through channel steel 34. After adjustment, the channel steel support 35 is welded and fixed. The square tube 36 is placed between adjacent transverse through channel steels 34 and supported by the channel steel support 35. The longitudinal connecting channel steel 33 is connected to the both ends of the transverse through channel steel 34 by high-strength bolts. Finally, the adjacent longitudinal connecting channel steels 33 are connected by high-strength bolts. The metal pattern plate 37 is laid on the steel structure framework and fixed on the longitudinal connecting channel steels 33 on both sides and the transverse through channel steels 34 on the front and back ends by high-strength bolts.

[0059] S3, fixing the conveying device and the paint spraying device: placing the steel structure framework completed in S2 on the tile layer 32. After positioning, the bottom of the paint conveying machine 14 and the truss paint spraying mechanical arm 15 are fixed on the metal pattern plate 37 by bolts. The S-shaped drying air pipe 16 at the bottom is laid and installed at the position of the drying working chamber.

[0060] S4, forming the room body: assembling the color steel plate or rock wool composite plate room body. The cable 13 or cable wind rope is installed on both sides of the room body, one end of which is connected to the side plate of the room body and the other end of which is connected to the ground anchor point to enhance the wind resistance of the detachable factory building. The quick plug-in board 12 is installed on the color steel plate or rock wool composite plate or the reserved position on the side of the room body. The annular sealing air pipe 11 is installed at the communication port between the entrance and exit of the room body and the two working chambers. The S-shaped drying air pipe 16 is hung on the inner walls on both sides of the drying working chamber.

[0061] S5. System connection and forming: Place the feeding gantry crane 1, feeding conveyor 2, feeding transition device 3, discharging transition device 5, discharging conveyor 6 and unloading gantry crane 7 in place, and connect the negative pressure dust removal device 8 to the color steel plate or rock wool composite panel house body.

[0062] S6. System disassembly after painting: After the metal components are painted on site, the system is disassembled in the reverse order of system assembly and construction. Finally, the detachable house body and the steel frame and floor tiles that make up the detachable foundation are recycled and reused. There is no foundation residue, air pollution and soil pollution on site.

[0063] For ease of understanding, the working process and principle of this embodiment are given below:

[0064] The operator will insert the metal component 9 with the support crossbar 18—the platform railing (such as...). Figure 9 , 10 As shown, the metal component 9 is hoisted onto the feeding conveyor 2 using a gantry crane 1. The metal component 9 is positioned between the conveying devices on both sides, ensuring that both ends of the metal component 9 are basically flush. The feeding conveyor 2 feeds the parallel metal components 9 one by one through the feeding transition device 3 into the paint conveyor 14 inside the detachable environmentally friendly sealed paint module 4, and the metal component 9 moves forward mechanically under the action of the paint conveyor 14. Inside the paint spraying chamber 10.1, the truss paint spraying robot 15 moves left and right with its oblique spray gun 15.1, and moves back and forth following the conveying speed of the metal component 9 to complete the painting operation for the metal component 9. After one metal component is painted, it returns to its initial position and begins painting the next metal component. During this process, the paint conveyor 14 can convey in a step-by-step manner or continuously, and the truss paint spraying robot 15 works in coordination with it. After the metal component 9 is painted, it is conveyed to the drying chamber 10.2 by the paint conveyor 14, where it is quickly dried under the action of the turbulent drying airflow. After drying, the paint spraying conveyor 14 transports the metal component 9 to the discharge conveyor 6 via the discharge transition device 5. The metal component 9 is then transported to the unloading gantry crane 7, where the operator unloads the component.

[0065] During the transportation process, such as Figure 11As shown, when the metal member 9 slides from the feeding conveyor 2 to the paint spraying conveyor 14, or from the paint spraying conveyor 14 to the discharging conveyor 6, in order to avoid the deflection of the member caused by the different movement of the two ends of the metal member 9, which affects the subsequent paint spraying process, a correction stopper 19 is arranged on one side of the transition slide plate 38. When the supporting crossbar 18 of the metal member 9 slides off the transition slide plate 38 on both sides, it is blocked by the correction stoppers 19 on both sides, so that the two ends are synchronized, and then the transition slide plate 38 is flipped around the shaft under the action of the driving motor, so that the upper surface of the transition slide plate is flush with or higher than the top end of the correction stopper, the inclination angle of the transition slide plate is increased, and the metal member is quickly and smoothly slid onto the lower transmission mechanism, so that the two ends of the metal member are synchronized on the two conveying mechanisms, and the working needs of the subsequent paint spraying process are met. Of course, the transition slide plate can also be fixed, and the correction stopper can be telescopic, and the metal member can pass through when the correction stopper falls back. However, the effect of this mode is not as good as that of the flip type transition slide plate.

[0066] During the paint spraying and drying process, the annular sealing air pipe 11 can form a sealing air wall when air is sprayed, so as to prevent the misty paint particles in the paint spraying working chamber from overflowing. The invisible sealing air wall is used to replace the visible sealing door, and does not affect the normal entry and exit of the metal member and the conveying belt, and perfectly solves the sealing problem of the misty paint particles in the working chamber. Figure 17 As shown, when the misty paint particles in the working chamber reach the entrance and exit, they can be blown back by the inwardly inclined sealing air wall. Even if a small amount of misty paint particles overflow from the first layer of sealing air wall (i.e. the inwardly inclined sealing air wall), they will be trapped in the stable cyclone formed between the two layers of sealing air wall. Figure 3 、 4 As shown, the paint spraying working chamber and the drying working chamber are respectively connected with bag-type dust collectors. Under the air suction of the bag-type dust collectors, the working chamber is in a micro-negative pressure state, which further avoids the leakage of misty paint particles from the entrance and exit, and can collect the misty paint particles in the working chamber to avoid environmental pollution.

[0067] During the drying process, the drying spray head adopts spiral scattering air outlet to reasonably distribute the drying air, so that the heated air can well dry the paint film of the metal member. Fast, uniform and reasonable hot air is an important condition for the rapid and uniform drying of the paint film of the metal member. Figure 12 、 13As shown, the specific principle is: after the drying hot air passes through the throttle hole on the throttle hole plate 25, the injection force and injection speed are improved, the drying air flow spirally rises through the spiral groove 24 on the inner wall of the transition joint 22, and because the volume inside the transition joint gradually increases, the flow rate of the air flow is also reduced, and finally the drying air flow becomes more uniform and scattered after entering the inclined nozzle on the nozzle (the inclination of the inclined nozzle is consistent with the inclination of the spiral groove, so that the air flow out of the nozzle is more smooth), and the air flow is evenly and reasonably distributed in the second working chamber, which can achieve very good drying effect in a short time, and avoid energy waste caused by high temperature drying and large heat production to achieve the same drying effect.

[0068] Of course, the above content is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the embodiments of the present application. The present application is also not limited to the above examples, and equivalent changes and improvements made by those skilled in the art within the essential scope of the present application should be attributed to the patent coverage of the present application.

Claims

1. An automated system for painting and drying metal construction components at a construction site, characterized in that: The application relates to an environment-friendly and sealable paint spraying module (4) which comprises a sealable paint spraying room (10) and component conveying devices, paint spraying devices and drying devices inside the sealable paint spraying room (10); the inside of the sealable paint spraying room (10) is divided into a paint spraying working room (10.1) and a drying working room (10.2), and annular seal air pipes (11) are arranged at the entrances of the sealable paint spraying room (10), the communication openings between the paint spraying working room (10.1) and the drying working room (10.2); a plurality of seal nozzles are closely arranged on the annular seal air pipes (11) and face the annular interior; when air is sprayed, a seal air wall can be formed so as to prevent misty paint particles in the paint spraying working room (10.1) from overflowing; the paint spraying working room (10.1) and the drying working room (10.2) are respectively connected with negative pressure dust removal devices (8). The sealable paint spraying room (10) comprises a detachable base and a detachable room body; the detachable base comprises a bottommost natural paving tile layer (32); a steel structure framework is arranged above the tile layer (32) and is composed of longitudinal connecting channel steel (33), transverse through channel steel (34), channel steel support (35) and square tube (36); adjacent transverse through channel steels (34) are connected together through the longitudinal connecting channel steels (33) on the two sides; a plurality of groups of parallel square tubes (36) are arranged between the adjacent transverse through channel steels (34); the two ends of the square tubes (36) are supported by the channel steel supports (35); the channel steel supports (35) are arranged through the transverse through channel steels (34); the top surfaces of the longitudinal connecting channel steels (33), the transverse through channel steels (34) and the square tubes (36) are flush; and a metal pattern plate (37) is arranged above the steel structure framework; the detachable room body is assembled by color steel plates or rock wool composite boards; the room body is provided with stay cables (13) on the left and right sides; and the side surface of the room body is provided with quick-connection plug-in plates (12). The component conveying device is a paint spraying conveying machine (14) which penetrates through the sealable paint spraying room (10).

2. The automated system for painting and drying of construction site metal components according to claim 1, characterized in that: Two rows of seal nozzles are distributed on the annular seal air pipe (11); the two rows of seal nozzles are respectively inclined to the two sides; and the included angle alpha between the axes of the two rows of seal nozzles is 1-10 degrees.

3. The automated system for painting and drying of metal construction site components according to claim 1 or 2, characterized in that: The paint spraying conveying machine (14) is arranged on the two sides of the component conveying channel; each paint spraying conveying machine (14) comprises two parallel conveying chains.

4. The automated system for painting and drying of metal construction site components according to claim 1 or 2, characterized in that: The paint spraying device is a truss paint spraying mechanical hand (15); the truss paint spraying mechanical hand (15) comprises a pair of oblique opposite spraying guns (15.1); the oblique opposite spraying guns (15.1) are connected to the piston rods of lifting cylinders (15.2); the top of the lifting cylinders (15.2) is fixed to horizontal moving sliding blocks (15.3); the horizontal moving sliding blocks (15.3) are arranged on trusses (15.4) through a gear and rack mechanism; the trusses (15.4) are arranged on the two sides of slide rails (15.5) through a gear and rack mechanism; the slide rails (15.5) are fixed to the top ends of vertical columns (15.6); and the bottom of the vertical columns (15.6) is fixed to the bottom plane of the paint spraying working room (10.1).

5. The automated system for painting and drying of construction site metal components according to claim 1 or 2, characterized in that: The drying device is an S-shaped drying air pipe (16) which is provided with a plurality of drying nozzles facing the indoor, and the S-shaped drying air pipe (16) is provided with three groups which are arranged on the left and right inner walls and the bottom plane of the drying working chamber (10.2), and the S-shaped drying air pipe (16) is connected with the external high-pressure air.

6. The automated system for painting and drying of construction site metal components according to claim 5, characterized in that: The drying nozzle comprises a drying nozzle outer cover (21), an inner wall spiral groove transition joint (22), a drying joint base (23) and a throttle hole plate (25), the drying joint base (23) is fixed on the drying main pipe (26) of the S-shaped drying air pipe (16), the inner wall spiral groove transition joint (22) is arranged on the drying joint base (23), the throttle hole plate (25) is arranged between the base and the transition joint, the transition joint is provided with the drying nozzle outer cover (21), and a plurality of drying nozzles (20) are arranged on the drying nozzle outer cover (21); the inner wall of the transition joint is tapered, the inner diameter of the transition joint is gradually increased from small to large according to the flow direction of the air flow, the position of the drying nozzle (20) on the drying nozzle outer cover (21) is matched with the largest inner diameter of the transition joint, and the distribution tracks of the plurality of drying nozzles (20) form a ring shape.

7. The automated system for painting and drying of construction site metal components according to claim 1 or 2, characterized in that: The sealing nozzle comprises a sealing linear nozzle (27), a sealing nozzle outer cover (28), a transition joint (29) and a sealing joint base (30), the sealing joint base (30) is fixed on the sealing door main pipe (31) of the annular sealing air pipe (11), the transition joint (29) is arranged on the sealing joint base (30), the sealing nozzle outer cover (28) is arranged on the transition joint (29), and the sealing linear nozzle (27) in the shape of a Chinese character is arranged on the sealing nozzle outer cover (28).

8. The automated system for painting and drying of construction site metal components according to claim 3, characterized in that: A detachable environment-friendly sealing paint spraying module (4) is sequentially provided with a feeding gantry crane (1), a feeding conveyor (2) and a feeding transition device (3) in sequence before the detachable environment-friendly sealing paint spraying module (4), and a discharging transition device (5), a discharging conveyor (6) and a discharging gantry crane (7) are sequentially arranged after the detachable environment-friendly sealing paint spraying module (4); the feeding transition device (3) and the discharging transition device (5) both comprise a transition sliding plate (38) and a deviation rectifying stop lever (19), the transition sliding plate (38) is inclined in an initial state and can be turned around the shaft under the action of a driving motor; the deviation rectifying stop lever (19) is arranged on one side of the transition sliding plate (38), and the top end of the deviation rectifying stop lever (19) is higher than the upper plane of the transition sliding plate (38).

9. A construction method using the construction site metal member paint spraying and drying automatic system according to any one of claims 1 to 8, characterized in that The method comprises the following steps: S1, laying a floor tile layer (32) on the ground: no cement or adhesive is needed during laying, and a natural laying method is adopted; S2, assembling the steel structure framework: placing the channel steel support (35) into the corresponding groove hole of the transverse through channel steel (34), so that the channel steel support (35) has protruding parts on the front and back of the transverse through channel steel (34), adjusting and welding, placing the square tube (36) between adjacent transverse through channel steels (34) and supporting by the channel steel support (35), connecting the longitudinal connecting channel steel (33) to the two ends of the transverse through channel steel (34) by high-strength bolts, and finally connecting adjacent longitudinal connecting channel steels (33) by high-strength bolts, laying the metal pattern plate (37) on the steel structure framework and fixing it on the longitudinal connecting channel steels (33) on both sides and the transverse through channel steels (34) at the two ends by high-strength bolts; S3, fixing the conveying device and the paint spraying device: placing the steel structure framework completed in S2 on the floor tile layer (32), positioning, and then fixing the bottom of the paint spraying conveyor (14) and the truss paint spraying mechanical arm (15) on the metal pattern plate (37) by bolts; laying and installing the S-shaped drying air pipe (16) at the bottom of the drying workroom; S4, forming the house body: assembling and forming the color steel plate or rock wool composite plate house body, installing the cable (13) on both sides of the house body, installing the quick plug-in board (12) on the reserved position of the color steel plate or rock wool composite plate on the side of the house body, installing the annular sealing air pipe (11) on the communication port between the entrance of the house body and the two workrooms, and hanging the S-shaped drying air pipe (16) on the inner wall of both sides of the drying workroom; S5, system connection and formation: placing the feeding gantry crane (1), the feeding conveyor (2), the feeding transition device (3), the discharging transition device (5), the discharging conveyor (6), and the discharging gantry crane (7) in place, and connecting the negative pressure dust removal device (8) with the color steel plate or rock wool composite plate house body; S6, system disassembly after paint spraying: after the on-site paint spraying of the metal components is completed, disassembling the system in the reverse order of the system assembly and construction, finally recycling and reusing the detachable house body and the steel structure framework and floor tiles constituting the detachable foundation, and there is no foundation residue, air pollution, and soil pollution on site.

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