A paint spraying device for production

Abstract

The application discloses a paint spraying device for production, which is characterized by the following: a first multi-section telescopic air rod and a second multi-section telescopic air rod are arranged on a paint spraying mechanism, so that the first multi-section telescopic air rod and the second multi-section telescopic air rod can be telescoped with the up-and-down movement of the paint spraying mechanism, so that the air bag can be inflated and expanded to squeeze the flow pipe, meanwhile, an arc-shaped plate and a second magnet are arranged, so that the arc-shaped plate can be attracted by the first magnet after being moved to a certain distance, and then the arc-shaped plate and the air bag can be used to squeeze and block the flow pipe, thereby reducing the paint spraying amount of the paint spraying mechanism and avoiding too much paint from being sprayed into the air, meanwhile, a heating mechanism is arranged, so that the heating mechanism can heat the airflow passing through the heating mechanism, so as to avoid the paint in the flow pipe from being cooled and caked to block the flow pipe, the paint spraying amount is controlled, the paint is prevented from being excessively sprayed, and the working cost is reduced to a certain extent.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of paint spraying, and relates to a paint spraying device for production. BACKGROUND

[0002] Paint spraying is to disperse paint into uniform and fine mist droplets by means of air pressure, and to apply the mist droplets to the surface of an object to be painted. After the paint is dried and solidified, a hard coating film is formed, which is a barrier to inhibit the intrusion of corrosive media.

[0003] When production pieces are subjected to paint spraying treatment, in order to spray paint on the surface of the production pieces, the phenomenon of excessive paint spraying may occur, resulting in resource waste. SUMMARY

[0004] The application aims to avoid excessive paint spraying, thereby reducing waste, and provides a paint spraying device for production, which comprises a bottom plate, a U-shaped frame and a plurality of hydraulic telescopic rods are fixedly installed at the upper end of the bottom plate, a plurality of moving grooves penetrating the inner wall of the U-shaped frame are formed in the left and right outer end walls of the U-shaped frame, a paint spraying mechanism is fixedly installed at the upper end of the hydraulic telescopic rod, a feeding pipe is fixedly installed at the end of the paint spraying mechanism away from the U-shaped frame, and a part of the paint spraying mechanism close to the U-shaped frame penetrates the moving groove and extends to the inner side of the U-shaped frame; the paint spraying mechanism comprises a shell, a flow limiting ring in communication with the feeding pipe is fixedly installed on the inner surface of the shell, a first fixed plate is fixedly installed at the end of the flow limiting ring away from the feeding pipe, a second fixed plate is fixedly installed on the side of the inner surface of the shell away from the first fixed plate, a plurality of flow-through pipes in communication with the flow limiting ring and the inner side of the U-shaped frame are jointly fixedly installed at the ends of the second fixed plate and the first fixed plate close to each other, and an opening and closing mechanism is jointly fixedly installed on the outer surfaces of the plurality of flow-through pipes; the opening and closing mechanism comprises a connecting ring, a first fixed block and two symmetrically arranged second fixed blocks are fixedly installed on the inner surface of the connecting ring, an empty groove is formed in the interior of each of the two second fixed blocks, a rubber ring is fixedly installed in the interior of the empty groove, the rubber ring is sleeved on the outer side of the flow-through pipe, a first multi-section telescopic air rod and a second multi-section telescopic air rod in communication with the empty grooves are fixedly installed on the sides of the two empty grooves away from each other, the sides of the first multi-section telescopic air rod and the second multi-section telescopic air rod away from each other are extended to the outside of the paint spraying mechanism and fixedly connected to the inner wall of the U-shaped frame, and the sides of the first multi-section telescopic air rod and the second multi-section telescopic air rod close to each other are fixedly installed with air bags in communication with the inner cavities thereof, so that the paint spraying amount is controlled, excessive paint spraying is avoided, resource waste is reduced, and the working cost is reduced to a certain extent.

[0005] Further, the inner walls on both sides of the hollow groove are provided with first sliding grooves, the top walls of the two first sliding grooves are fixedly installed with first magnets, the outer surface of the air bag is fixedly installed with an arc-shaped plate, the outer surface of the arc-shaped plate is fixedly installed with two second magnets which are slidingly connected inside the hollow groove, and the second magnets and the first magnets attract each other. After the air bag is inflated and expanded, the arc-shaped plate moves upward, and then the second magnets and the first magnets attract each other to squeeze the rubber ring together, thereby blocking one of the flow pipes, reducing paint spraying, and further reducing waste.

[0006] Further, the outer surfaces of the parts of the first multi-section telescopic air rod and the second multi-section telescopic air rod close to the paint spraying mechanism are provided with open grooves, the side walls of the open grooves are provided with mounting grooves, and the interiors of the open grooves and the mounting grooves are jointly connected with a heating mechanism, so that the heating mechanism can be embedded in the first multi-section telescopic air rod or the second multi-section telescopic air rod and remain sealed, avoiding affecting the normal work of the first multi-section telescopic air rod or the second multi-section telescopic air rod.

[0007] Further, the heating mechanism comprises an upper connecting plate and a lower connecting plate, the upper and lower ends of the upper connecting plate are jointly provided with an air passage, the lower end of the outer side of the upper connecting plate is fixedly installed with an elastic telescopic ring, the lower end of the elastic telescopic ring is provided with a plurality of plug-in grooves, the outer side of the upper end of the lower connecting plate is uniformly provided with a plurality of air vents, the upper end of the lower connecting plate is fixedly installed with a storage ring and a plurality of positioning rods, the positioning rods are slidingly connected inside the plug-in grooves, the inner side of the storage ring is filled with quicklime, the outer surface of the storage ring is slidingly connected with a convex water storage column, the interior of the convex water storage column is fixedly installed with a partition plate, the middle part of the partition plate is provided with a water dripping groove, the partition plate and the convex water storage column are filled with an aqueous solution, and the water source in the convex water storage column will slowly drip into the quicklime through the water dripping groove and react with it, so that the heating mechanism can continuously generate heat to heat the airflow passing through, thereby keeping the air bag at a high temperature and heating the rubber ring and the flow pipe to avoid cooling and clogging of the paint in the flow pipe when the flow pipe is squeezed and blocked.

[0008] Further, the storage ring is an aluminum alloy ring, and the outer surface of the storage ring is rough. The aluminum alloy material of the storage ring has high heat transfer property, can quickly guide the heat generated by the reaction of quicklime and water to the outside to heat the airflow passing through, and the rough outer surface can prevent the convex water storage column from easily separating from the storage ring, thereby preventing the convex water storage column from toppling during the extension and contraction of the first multi-section telescopic air rod or the second multi-section telescopic air rod.

[0009] Further, the inner cavity top wall of the convex water storage column is a conical structure, a plurality of elastic ropes are fixedly installed on the inner cavity top wall of the convex water storage column, and one end of the plurality of elastic ropes away from the convex water storage column is fixedly installed with a sealing ball, the sealing ball can block the water inlet of the convex water storage column, so as to avoid water from shaking and overflowing during the stretching and contraction of the first multi-section telescopic air rod or the second multi-section telescopic air rod.

[0010] Further, the inner cavity top wall of the convex water storage column is a conical structure, a plurality of elastic ropes are fixedly installed on the inner cavity top wall of the convex water storage column, and one end of the plurality of elastic ropes away from the convex water storage column is fixedly installed with a sealing ball, the sealing ball can block the water inlet of the convex water storage column, so as to avoid water from shaking and overflowing during the stretching and contraction of the first multi-section telescopic air rod or the second multi-section telescopic air rod.

[0011] Further, the upper parts of the partition plate and the plastic sheet are downwardly recessed inclined surface structures, which accelerate the discharge of water flow, reduce residues, and avoid incomplete reaction of quicklime.

[0012] Further, the upper end of the lower connecting plate is fixedly installed with a shunt rod communicating with the water dripping groove, a plurality of water outlets are formed in the outer surface of the shunt rod, a filter screen is fixedly installed on the inner side wall of the water outlet away from the inner surface of the shunt rod, the water dripping from the water dripping groove reacts with the quicklime to release heat, after the reaction is completed, the hydrated lime no longer absorbs water, and the water flow is difficult to penetrate, so that the water accumulates in the shunt rod and then continues to leave the reaction through the water outlet at the upper part of the shunt rod, and the filter screen can prevent the quicklime from entering the shunt rod and affecting the normal work of the shunt rod.

[0013] Further, two drainage grooves communicating with the inner cavity of the shunt rod are formed in the lower part of the outer surface of the shunt rod, a baffle is slidably connected to the inner surface of the shunt rod, a sponge is fixedly installed between the baffle and the upper end of the lower connecting plate, a second sliding groove communicating with the inner cavity of the shunt rod is formed in the middle part of the sponge and the baffle, a sealing plate is slidably connected to the inside of the second sliding groove, and a spring is fixedly installed between the sealing plate and the upper end of the lower connecting plate, when the water flow in the shunt rod accumulates to a certain degree, the sealing plate is pressed downward, so as to open the sliding groove, the sponge can quickly absorb water and expand, the baffle is pushed to the upper part of the inner surface of the shunt rod, so that the water leaves through the upper water outlet, and then the baffle is pressed to make the water in the sponge leave through the drainage groove.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the application has the advantages that:

[0016] (1) The first and second multi-section telescopic air rods are arranged on the paint spraying mechanism, so that the air bag can be inflated and expanded by the telescopic movement of the first and second multi-section telescopic air rods to press the flow pipe, and the arc-shaped plate is attracted by the first magnet after being moved to a certain distance, and then cooperates with the air bag to press and block the flow pipe, thereby reducing the paint spraying amount of the paint spraying mechanism, avoiding excessive paint from being sprayed into the air, and reducing the overall cost to a certain extent.

[0017] (2) The heating mechanism is arranged on the first and second multi-section telescopic air rods, so that the flowing air can become hot air flow to heat the closely attached rubber ring and flow pipe, thereby avoiding paint cooling and caking to cause the flow pipe to be blocked.

[0018] (3) The storage ring and the convex water storage column are arranged on the heating mechanism, so that the water source in the convex water storage column can slowly drip onto the quicklime and react with it, thereby enabling the heating mechanism to continuously emit heat to heat the passing air flow to avoid the paint in the flow pipe from cooling and caking to cause the flow pipe to be blocked when the flow pipe is pressed and blocked.

[0019] (4) The storage ring is arranged as a rough aluminum alloy ring, so that the heat generated by the reaction of the quicklime and water can be quickly transferred to the outside of the heating mechanism to heat the passing air flow, and the rough outer surface can prevent the convex water storage column from easily separating from the storage ring, thereby avoiding the convex water storage column from toppling during the telescopic movement of the first and second multi-section telescopic air rods.

[0020] (5) The tapered structure and the sealing ball are arranged in the convex water storage column, so that the sealing ball can block the water inlet of the convex water storage column to affect the normal use time of the quicklime, thereby effectively avoiding the decrease in work efficiency.

[0021] (6) The first and second L-shaped stop rods are arranged on the first and second multi-section telescopic air rods, respectively, to facilitate the dripping of the water source on the partition plate, so that the air flow caused by each telescopic movement of the first and second multi-section telescopic air rods can be heated to avoid the paint from caking in the flow pipe to cause the flow pipe to be blocked.

[0022] (7) The shunt rod and the water outlet are arranged, so that the water source dripping in the convex water storage column can be dispersed to the upper and lower parts of the quicklime, thereby enabling the quicklime to react completely, reducing waste, and effectively prolonging the working time of the heating mechanism.

[0023] (8) By setting the baffle and sponge in the shunt rod, the water reacts completely with the lower part of the quicklime, the sealing plate can be squeezed and moved down to leave the baffle, so that the sponge absorbs water and expands quickly, the baffle is pushed to the upper part of the inner surface of the shunt rod, the water reacts with the upper part of the quicklime, and the heating mechanism is kept in heating state at all times. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0025] Figure 2 It is a sectional view of the paint spraying mechanism of the present application;

[0026] Figure 3 It is a schematic diagram of the structure of the opening and closing mechanism of the present application;

[0027] Figure 4 It is a sectional view of the second fixed block of the present application;

[0028] Figure 5 It is a connection structure diagram of the second multi-section telescopic air rod and air bag of the present application;

[0029] Figure 6 It is a sectional view of the first multi-section telescopic air rod of the present application;

[0030] Figure 7 It is a schematic diagram of the structure of the heating mechanism of the present application;

[0031] Figure 8 It is a sectional view of the convex water storage column of the present application;

[0032] Figure 9 It is a schematic diagram of the connection structure of the lower connecting plate, storage ring and shunt rod of the present application;

[0033] Figure 10 It is a sectional view of the shunt rod of the present application.

[0034] Explanation of reference numerals in the drawings:

[0035] 1, bottom plate; 2, U-shaped frame; 21, moving groove; 3, hydraulic telescopic rod; 4, paint spraying mechanism; 41, shell; 42, flow limiting ring; 43, first fixed plate; 44, second fixed plate; 45, flow pipe; 46, opening and closing mechanism; 461, connecting ring; 462, first fixed block; 463, second fixed block; 4631, empty groove; 4632, rubber ring; 4633, first sliding groove; 4634, air bag; 4635, arc plate; 4636, second magnet; 5, feeding pipe; 6, first multi-section telescopic air rod; 61, first L-shaped stopper; 62, open groove; 63, mounting groove; 7, second multi-section telescopic air rod; 71, second L-shaped stopper; 8, heating mechanism; 81, upper connecting plate; 811, air passage; 82, lower connecting plate; 821, air hole; 822, positioning rod; 823, storage ring; 824, flow dividing rod; 8241, water outlet; 8242, drainage groove; 825, baffle; 8251, sealing plate; 826, sponge; 83, elastic telescopic ring; 84, convex water storage column; 841, partition; 8411, water dripping groove; 842, plastic sheet; 8421, water inlet groove; 843, elastic rope; 844, sealing ball. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0037] Embodiment 1

[0038] Please refer to Figures 1-10The utility model provides a kind of production with paint spraying device, including bottom plate 1, the upper end of bottom plate 1 is fixedly installed with U-shaped frame 2 and multiple hydraulic telescopic rods 3, multiple moving grooves 21 that pass through its inner wall are all set in the left and right outer end wall of U-shaped frame 2, the upper end of hydraulic telescopic rod 3 is fixedly installed with paint spraying mechanism 4, paint spraying mechanism 4 is fixedly installed with feed pipe 5 away from one end of U-shaped frame 2, part of paint spraying mechanism 4 is close to U-shaped frame 2 and extends to the inside of U-shaped frame 2 by passing through moving groove 21, paint spraying mechanism 4 includes shell 41, the inner surface of shell 41 is fixedly installed with flow limiting ring 42 communicated with feed pipe 5, first fixed plate 43 is fixedly installed at the end of flow limiting ring 42 away from feed pipe 5, the inner surface of shell 41 is fixedly installed with second fixed plate 44 away from first fixed plate 43, second fixed plate 44 and first fixed plate 43 are fixedly installed with multiple flow-through pipes 45 communicated with flow limiting ring 42 and the inside of U-shaped frame 2 at the end of mutual approach, multiple flow-through pipes 45 are fixedly installed with opening and closing mechanism 46 on the outer surface, opening and closing mechanism 46 can be extruded and blocked to the flow-through pipe 45 located in its upper portion or lower portion with the up-down movement of paint spraying mechanism 4, to reduce the paint spraying, avoid too much paint to be sprayed in empty place, to reduce the waste of paint.

[0039] Please refer to Figures 3-5 Opening and closing mechanism 46 includes connecting ring 461, the inner surface of connecting ring 461 is fixedly installed with first fixed block 462 and two symmetrically arranged second fixed blocks 463, the inside of two second fixed blocks 463 is all set with air slot 4631, rubber ring 4632 is fixedly installed in the inside of air slot 4631, and rubber ring 4632 is set on the outside of flow-through pipe 45, the two sides inner wall of air slot 4631 is all set with first sliding groove 4633, the top wall of two first sliding grooves 4633 is all fixedly installed with first magnet, the outer surface of air bag 4634 is fixedly installed with arc plate 4635, the outer surface of arc plate 4635 is fixedly installed with two second magnets 4636 slidingly connected in the inside of air slot 4631, and second magnet 4636 and first magnet are mutually attracted, after air bag 4634 inflation, make arc plate 4635 move up, then by the mutual attraction between second magnet 4636 and first magnet, come together extruding rubber ring 4632, to block one of flow-through pipe 45, reduce the paint spraying, to reduce waste.

[0040] Please refer to Figures 1-2 And Figures 4-6Two sides of the two air slots 4631 away from each other are respectively fixedly installed with the first multi-section telescopic air rod 6 and the second multi-section telescopic air rod 7 communicated with the air slots 4631, and the first multi-section telescopic air rod 6 and the second multi-section telescopic air rod 7 are both provided with an open slot 62 on a part of the outer surface close to the paint spraying mechanism 4, the two side walls of the open slot 62 are both provided with an installation slot 63, and the inside of the open slot 62 and the installation slot 63 are both connected with the heating mechanism 8, so that the heating mechanism 8 can be embedded in the first multi-section telescopic air rod 6 or the second multi-section telescopic air rod 7 and kept sealed, avoiding affecting the normal work of the first multi-section telescopic air rod 6 or the second multi-section telescopic air rod 7, and the inner surface of the side of the first multi-section telescopic air rod 6 and the second multi-section telescopic air rod 7 close to the heating mechanism 8 is respectively fixedly installed with the first L-shaped stop rod 61 and the second L-shaped stop rod 71.

[0041] Please refer to Figures 7-9 The heating mechanism 8 comprises an upper connecting plate 81 and a lower connecting plate 82, the upper and lower ends of the upper connecting plate 81 are both provided with an air passage 811, the lower end of the outer side of the upper connecting plate 81 is fixedly installed with an elastic telescopic ring 83, the lower end of the elastic telescopic ring 83 is provided with a plurality of plug-in slots, the upper end of the outer side of the lower connecting plate 82 is uniformly provided with a plurality of air holes 821, the upper end of the lower connecting plate 82 is fixedly installed with a storage ring 823 and a plurality of positioning rods 822, the positioning rods 822 are slidingly connected in the plug-in slots, the storage ring 823 is an aluminum alloy ring, and the outer surface of the storage ring 823 is relatively rough, the storage ring 823 made of aluminum alloy has high heat transfer property, can quickly guide the heat generated by the reaction of quicklime and water to the outside to heat the airflow, and the rough outer surface can prevent the convex water storage column 84 from being separated from the storage ring 823, thereby avoiding the convex water storage column 84 from being tilted during the telescopic process of the first multi-section telescopic air rod 6 or the second multi-section telescopic air rod 7.

[0042] Please refer to Figures 8-9 The inner side of the storage ring 823 is filled with quicklime, the outer surface of the storage ring 823 is slidingly connected with the convex water storage column 84, the inner cavity top wall of the convex water storage column 84 is of a conical structure, the inner cavity top wall of the convex water storage column 84 is fixedly installed with a plurality of elastic ropes 843, one end of the plurality of elastic ropes 843 away from the convex water storage column 84 is fixedly installed with a sealing ball 844, the sealing ball 844 can block the water inlet of the convex water storage column 84, thereby avoiding the water source from shaking and overflowing during the telescopic process of the first multi-section telescopic air rod 6 or the second multi-section telescopic air rod 7, and the vertical parts of the first L-shaped stop rod 61 and the second L-shaped stop rod 71 are both located directly above the sealing ball 844.

[0043] Please refer to Figure 8The inside of the convex water storage column 84 is fixedly installed with a partition plate 841, the partition plate 841 is filled with an aqueous solution between the partition plate 841 and the convex water storage column 84, the middle part of the partition plate 841 is provided with a water dripping groove 8411, the water source in the convex water storage column 84 can slowly drip into the quicklime through the water dripping groove 8411 and react with the quicklime, so that the heating mechanism 8 can continuously heat, heat the airflow passing through, and then keep the air bag 4634 at a high temperature, heat the rubber ring 4632 and the flow-through pipe 45, so as to avoid the cooling and caking of the paint in the flow-through pipe 45 when the flow-through pipe 45 is extruded and blocked, and avoid the blockage of the flow-through pipe 45. The inside of the convex water storage column 84 is slidably connected with a plastic sheet 842, the plastic sheet 842 is located at the upper part of the partition plate 841, the middle part of the plastic sheet 842 is provided with a water inlet groove 8421, and the first multi-section telescopic air rod 6 or the second multi-section telescopic air rod 7 is retracted, so that the first L-shaped stopper rod 61 or the second L-shaped stopper rod 71 can be deeply inserted into the convex water storage column 84 to extrude the sealing ball 844 downward, and then the water source is extruded downward through the plastic sheet 842 to accelerate the dripping of the water source, so that the airflow to the air bag 4634 can be heated every time. The upper parts of the partition plate 841 and the plastic sheet 842 are inclined surface structures concave downward, accelerate the discharge of water flow, reduce residues, and avoid incomplete reaction of quicklime.

[0044] Please refer to Figure 10The upper end of the lower connecting plate 82 is fixedly provided with a shunt rod 824 communicated with the drip groove 8411. The shunt rod 824 is in close contact with the partition plate 841 when communicated with the partition plate 841. A plurality of water outlets 8241 are formed in the outer surface of the shunt rod 824. A filter screen is fixedly arranged on the inner side wall of the water outlet 8241 away from the inner surface of the shunt rod 824. The dripping water source first passes through the water outlet 8241 at the lower part of the shunt rod 824 to leave and react with quicklime to release heat. After the reaction is completed, the slaked lime no longer absorbs water, and the water flow is difficult to penetrate, so as to be accumulated in the shunt rod 824 until the water continues to leave the reaction through the water outlet 8241 at the upper part of the shunt rod 824. The filter screen can prevent the quicklime from entering the shunt rod 824 to affect the normal work of the shunt rod 824. Two drainage grooves 8242 communicated with the inner cavity of the shunt rod 824 are formed in the lower part of the outer surface of the shunt rod 824. A baffle 825 is slidably connected to the inner surface of the shunt rod 824. The sponge 826 is fixedly arranged between the baffle 825 and the upper end of the lower connecting plate 82. The sponge 826 is in a contracted state before work. The sponge 826 and the middle part of the baffle 825 are jointly provided with a second sliding groove communicated with the inner cavity of the shunt rod 824. A sealing plate 8251 is slidably connected to the inside of the second sliding groove. In the initial state, the sealing plate 8251 is located at the same horizontal height as the upper end face of the baffle 825. The sealing plate 8251 and the upper end of the lower connecting plate 82 are fixedly provided with a spring. When the water flow in the shunt rod 824 accumulates to a certain degree, the sealing plate 8251 is pressed downward, so as to open the sliding groove, so that the sponge 826 can quickly absorb water to expand, and the baffle 825 is pushed to the upper part of the inner surface of the shunt rod 824, so that the water flows out through the upper water outlet 8241. After that, the baffle 825 is pressed to make the water in the sponge 826 flow out through the drainage groove 8242.

[0045] Please refer to Figure 1 The side away from each other of the first multi-section telescopic air rod 6 and the second multi-section telescopic air rod 7 is extended to the outside of the paint spraying mechanism 4 and fixedly connected to the inner wall of the U-shaped frame 2. The side close to each other of the first multi-section telescopic air rod 6 and the second multi-section telescopic air rod 7 is fixedly provided with an air bag 4634 communicated with the inner cavity thereof. The air bag 4634 inflates and expands to press and block the flow-through pipe 45 along with the contraction of the first multi-section telescopic air rod 6 or the second multi-section telescopic air rod 7.

[0046] The above is only a preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the improved concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A production painting device comprising a base plate (1), characterized in that, The upper end of the bottom plate (1) is fixedly installed with a U-shaped frame (2) and a plurality of hydraulic telescopic rods (3), the left and right outer end walls of the U-shaped frame (2) are each provided with a plurality of moving grooves (21) penetrating the inner wall thereof, the upper end of the hydraulic telescopic rod (3) is fixedly installed with a paint spraying mechanism (4), the end of the paint spraying mechanism (4) away from the U-shaped frame (2) is fixedly installed with a feeding pipe (5), and the part of the paint spraying mechanism (4) close to the U-shaped frame (2) penetrates through the moving groove (21) and extends to the inner side of the U-shaped frame (2); The paint spraying mechanism (4) comprises an outer shell (41), the inner surface of the outer shell (41) is fixedly installed with a flow limiting ring (42) in communication with the feeding pipe (5), the end of the flow limiting ring (42) away from the feeding pipe (5) is fixedly installed with a first fixed plate (43), the inner surface of the outer shell (41) is fixedly installed with a second fixed plate (44) on the side away from the first fixed plate (43), and the ends of the second fixed plate (44) and the first fixed plate (43) close to each other are jointly fixedly installed with a plurality of flow-through pipes (45) in communication with the flow limiting ring (42) and the inner side of the U-shaped frame (2), and the outer surfaces of the plurality of flow-through pipes (45) are jointly fixedly installed with an opening and closing mechanism (46). The opening and closing mechanism (46) comprises a connecting ring (461), the inner surface of the connecting ring (461) is fixedly installed with a first fixed block (462) and two second fixed blocks (463) symmetrically arranged, the interiors of the two second fixed blocks (463) are each provided with an empty groove (4631), the inner part of the empty groove (4631) is fixedly installed with a rubber ring (4632), the rubber ring (4632) is sleeved on the outer side of the flow-through pipe (45), the sides of the two empty grooves (4631) away from each other are respectively fixedly installed with a first multi-section telescopic air rod (6) and a second multi-section telescopic air rod (7) in communication therewith, the sides of the first multi-section telescopic air rod (6) and the second multi-section telescopic air rod (7) away from each other are each extended to the outside of the paint spraying mechanism (4) and fixedly connected to the inner wall of the U-shaped frame (2), and the sides of the first multi-section telescopic air rod (6) and the second multi-section telescopic air rod (7) close to each other are each fixedly installed with an air bag (4634) in communication with the inner cavity thereof. The inner walls of the two sides of the empty groove (4631) are each provided with a first sliding groove (4633), the top walls of the two first sliding grooves (4633) are each fixedly installed with a first magnet, the outer surface of the air bag (4634) is fixedly installed with an arc-shaped plate (4635), the outer surface of the arc-shaped plate (4635) is fixedly installed with two second magnets (4636) slidingly connected to the interiors of the empty grooves (4631), and the second magnets (4636) and the first magnets are mutually attracted.

2. The paint spraying device for production according to claim 1, characterized in that, The outer surfaces of the parts of the first multi-section telescopic air rod (6) and the second multi-section telescopic air rod (7) close to the paint spraying mechanism (4) are each provided with an open groove (62), the two side walls of the open groove (62) are jointly provided with a mounting groove (63), and the interiors of the open groove (62) and the mounting groove (63) are jointly connected with a heating mechanism (8).

3. The paint spraying device for production according to claim 2, characterized in that, The heating mechanism (8) comprises an upper connecting plate (81) and a lower connecting plate (82), a ventilation groove (811) is arranged between the upper and lower ends of the upper connecting plate (81), a elastic expansion ring (83) is fixedly installed on the lower end of the outer side of the upper connecting plate (81), a plurality of plug-in grooves are arranged on the lower end of the elastic expansion ring (83), a plurality of ventilation holes (821) are uniformly arranged on the upper end of the outer side of the lower connecting plate (82), a storage ring (823) and a plurality of positioning rods (822) are fixedly installed on the upper end of the lower connecting plate (82), the positioning rods (822) are slidingly connected in the plug-in grooves, the storage ring (823) is filled with quicklime on the inner side, a convex water storage column (84) is slidingly connected to the outer surface of the storage ring (823), a partition plate (841) is fixedly installed in the convex water storage column (84), and a water dripping groove (8411) is arranged in the middle portion of the partition plate (841).

4. The paint spraying device for production according to claim 3, characterized in that, The storage ring (823) is an aluminum alloy ring, and the outer surface of the storage ring (823) is relatively rough.

5. The paint spraying device for production according to claim 3, characterized in that, The inner cavity top wall of the convex water storage column (84) is a conical structure, a plurality of elastic ropes (843) are fixedly installed on the inner cavity top wall of the convex water storage column (84), and one ends of the plurality of elastic ropes (843) away from the convex water storage column (84) are fixedly installed with a sealing ball (844).

6. A paint spraying device for production use according to claim 5, characterized in that The inner cavity of the convex water storage column (84) is slidingly connected with a plastic sheet (842), the plastic sheet (842) is located on the upper portion of the partition plate (841), a water inlet groove (8421) is arranged in the middle portion of the plastic sheet (842), the first L-shaped stop rod (61) and the second L-shaped stop rod (71) are fixedly installed on the inner surface of one side of the first multi-section telescopic air rod (6) and the second multi-section telescopic air rod (7) close to the heating mechanism (8), and the vertical portions of the first L-shaped stop rod (61) and the second L-shaped stop rod (71) are located directly above the sealing ball (844).

7. A paint spraying device for production use according to claim 6, characterized in that The upper portions of the partition plate (841) and the plastic sheet (842) are downwardly recessed inclined surface structures.

8. The paint spraying device for production according to claim 3, characterized by The upper end of the lower connecting plate (82) is fixedly installed with a flow dividing rod (824) communicated with the water dripping groove (8411), a plurality of water outlets (8241) are arranged on the outer surface of the flow dividing rod (824), and a filter screen is fixedly installed on part of the inner side wall of the water outlet (8241) away from the inner surface of the flow dividing rod (824).

9. The paint spraying device for production according to claim 8, characterized in that, Two drainage grooves (8242) communicated with the inner cavity of the flow dividing rod (824) are arranged on the lower portion of the outer surface of the flow dividing rod (824), a baffle (825) is slidingly connected to the inner surface of the flow dividing rod (824), a sponge (826) is fixedly installed between the baffle (825) and the upper end of the lower connecting plate (82), a second sliding groove communicated with the inner cavity of the flow dividing rod (824) is arranged in the middle portion of the baffle (825) and the sponge (826), a sealing plate (8251) is slidingly connected in the second sliding groove, and a spring is fixedly installed between the sealing plate (8251) and the upper end of the lower connecting plate (82).

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