A nitrogen energy-saving spraying equipment

Abstract

The present invention relates to the field of spraying, and specifically to a nitrogen energy-saving spraying device, comprising a casing, wherein a storage box is arranged inside the casing, the storage box is used to store paint, a spraying mechanism is arranged on the casing, the spraying mechanism is used to spray paint onto the surface of an object; the compression mechanism is used to compress nitrogen; a feeding mechanism is arranged inside the casing, the feeding mechanism is connected with the spraying mechanism, the feeding mechanism is used to transport paint to the inside of the spraying mechanism; a stirring mechanism is arranged inside the feeding mechanism, the stirring mechanism is used to stir the paint; an automatic feeding mechanism is arranged inside the feeding mechanism, the automatic feeding mechanism is used to transport the paint inside the storage box to the inside of the feeding mechanism; a trigger mechanism is arranged on the feeding mechanism, the trigger mechanism is used to trigger the automatic feeding mechanism, and the automatic feeding mechanism transports the paint to the inside of the feeding mechanism.

Description

Technical Field

[0001] The present invention relates to the field of spraying, and specifically to a nitrogen energy-saving spraying device. Background Art

[0002] During the spraying process of paint, inert gas is required. Traditional spraying generally uses compressed air as the medium. Compressed air contains water molecules, oxygen, nitrogen, carbon monoxide, carbon dioxide, and other rare gases, which may affect the paint film and reduce the product yield. Nitrogen spraying uses inert and single nitrogen as the spraying medium, which has better dispersion effect, higher paint adhesion rate, and saves more paint.

[0003] During the spraying process of paint, compressed nitrogen is used as the spraying gas. The nitrogen flows at high speed through the paint outlet, causing a negative pressure at the paint gun outlet, thereby generating siphon, and the air flow is blown and atomized through the fine holes of the paint gun cap; however, when the paint is sprayed, the pressure of nitrogen needs to be kept large enough to ensure the negative pressure value at the paint outlet. Therefore, an air compressor is required to provide sufficient pressure, and the nitrogen storage bottle also needs to store nitrogen with a relatively large pressure. As a result, the requirements for multiple valves connected to the nitrogen storage bottle become higher.

[0004] After stopping during the painting process, the paint will settle. Although sediment may indeed occur after the paint has matured and settled, the occurrence of sediment can be reduced through appropriate storage and stirring measures. Currently, it is impossible to stir the paint that has stopped being sprayed, which easily causes sediment and affects the spraying effect; after the paint is sprayed, a part of it will adhere to the inner wall of the paint bucket, resulting in waste of resources and difficulty in cleaning the inner wall of the paint bucket later. Summary of the Invention

[0005] Aiming at the problems in the prior art, the present invention provides a nitrogen energy-saving spraying device.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A nitrogen-saving spraying device includes a machine shell. Inside the machine shell, there is a material storage tank for storing paint. A spraying mechanism is provided on the machine shell for spraying the paint onto the surface of an object. Inside the machine shell, there is a compression mechanism connected to the spraying mechanism for compressing nitrogen. Inside the machine shell, there is a feeding mechanism connected to the spraying mechanism for transporting the paint into the interior of the spraying mechanism. Inside the feeding mechanism, there is a stirring mechanism for stirring the paint. Inside the feeding mechanism, there is an automatic feeding mechanism for transporting the paint inside the material storage tank into the interior of the feeding mechanism. A triggering mechanism is provided on the feeding mechanism for triggering the automatic feeding mechanism, and the automatic feeding mechanism transports the paint into the interior of the feeding mechanism.

[0007] The compression mechanism includes a nitrogen tank arranged inside the machine shell. On one side of the nitrogen tank, there are multiple hollow fiber modules. An air inlet pipe is provided on the hollow fiber module, and the compressed nitrogen is transported into the nitrogen tank through the air inlet pipe.

[0008] The feeding mechanism includes a paint tank arranged inside the machine shell. A connecting pipe is provided on the paint tank and is connected to the nitrogen tank. A one-way valve is arranged inside the connecting pipe. An outlet is provided at the bottom of the paint tank and is connected to the spraying mechanism.

[0009] The stirring mechanism includes a stirring component and a ratchet component. The stirring component is used for stirring the paint inside the paint tank, and the ratchet component is used for limiting the rotation of the stirring component.

[0010] The stirring component includes a transmission rod arranged inside the paint tank. Multiple groups of stirring rods are provided on the transmission rod, and each group of stirring rods consists of two symmetrically arranged ones. A support plate is arranged inside the paint tank, and the stirring rods pass through the interior of the support plate and rotate on the support plate. Above the stirring rods, there are multiple uniformly distributed support rods, and wind vane plates are provided on the support rods. The wind vane plates are in a concave structure. A partition plate is arranged inside the paint tank, and two slits are provided on the partition plate for the rotating wind vane plates to pass through. A sealing gasket is arranged on one side of the partition plate and is in sealing contact with the wind vane plates. Air distribution holes are provided on the support plate for communicating the upper and lower spaces of the support plate.

[0011] The ratchet assembly includes a plurality of pushing blocks arranged on the outer surface of the transmission rod. One side of each pushing block is provided with a corresponding flipping block. Above the support plate, there is a fixing plate. Inside the fixing plate, there is a block groove. A third rotating pin is rotatably arranged inside the block groove. A second torsion spring is sleeved on the third rotating pin. The third rotating pin is connected to the flipping block. The second torsion spring is used to push the flipping block to reset.

[0012] The automatic feeding mechanism includes a pressurizing component and a feeding component. The pressurizing component is used to increase the pressure above the paint to force the paint to accelerate into the interior of the paint can. The feeding component is used to convey the extruded paint into the interior of the paint can.

[0013] The pressurizing component includes an electric telescopic rod arranged on the inner wall of the paint can. The telescopic end of the electric telescopic rod is connected to a feeding rod. An air inlet groove is formed in the paint can. The air inlet groove is connected to a connecting pipe, and the connecting pipe is communicated with a storage box. A first baffle is arranged on the air inlet groove to block the air inlet groove. At least two sliding grooves are arranged on the side wall of the air inlet groove. Corresponding sliding rods are arranged inside the sliding grooves respectively. The end of each sliding rod is connected to the side wall of the first baffle, and the sliding rod slides inside the sliding groove. A first elastic member is arranged inside the sliding groove and is used to pull the first baffle to reset.

[0014] A first push rod is arranged on the outer wall of the feeding rod. A second push rod is arranged on the side wall of the first baffle. A second rotating pin is arranged between the first push rod and the second push rod. A first torsion spring is sleeved on the second rotating pin.

[0015] The feeding component includes a discharge groove arranged on the inner wall of the paint can. A second baffle is rotatably arranged on the discharge groove. The second baffle is used to open and close the discharge groove. A first rotating pin is arranged on the second baffle and is rotatably connected to the paint can. An inner groove is arranged on the inner wall of the paint can. A plurality of second elastic members are arranged inside the inner groove. A limiting rod is arranged inside the inner groove. The second elastic member is used to push the limiting rod to reset. A lower inner groove is arranged inside the second baffle. The limiting rod is engaged with the limiting groove. One end of the limiting rod is an inclined surface. An abutting rod is arranged at the bottom of the feeding rod and is used to push the limiting rod downward. A pulling rope is arranged at the bottom of the feeding rod. One end of the pulling rope is connected to the second baffle, and the pulling rope is used to pull the second baffle to block the discharge groove.

[0016] The triggering mechanism includes a movable plate sleeved on the transmission rod. A scraping ring is arranged at the bottom of the movable plate. The scraping ring is a hollow frustum-shaped structure, and the movable plate is a hollow structure. A connecting rod is arranged on the movable plate, a triggering rod is arranged at the top of the connecting rod, a guiding groove is arranged on the inner wall of the paint can, a triggering block is arranged inside the guiding groove, and the triggering block is electrically connected to the electric telescopic rod.

[0017] The spraying mechanism includes a hose connected to the machine shell. A spray gun is arranged on the hose. A spraying port is arranged at the end of the spray gun. A paint port and an air outlet are arranged inside the spray gun. The air outlets are located on both sides of the paint port. A channel communicating with the air outlet is arranged inside the spray gun. A trigger and a plugging needle are arranged on the spray gun. The plugging needle is used to plug the paint port, and the trigger is used to push the plugging needle to move inside the paint port and open the paint port. A clamping frame is arranged on the machine shell, and the clamping frame is used to place the spray gun.

[0018] A feeding port for adding paint inside the storage tank is arranged on the machine shell. A valve body is arranged on the storage tank, and the valve body is used to release the gas inside the storage tank.

[0019] Beneficial effects:

[0020] (1) An adaptive heating device is installed inside the machine shell to keep the nitrogen at the set temperature, which is beneficial to improving the activity of ammonia molecules, reducing the use of solvents, reducing VOC emissions, and is beneficial to the use of paint when the temperature is low in winter. When the temperature fails to reach the set value, gas transmission is not allowed and use is restricted. Precision control internal solenoid valves and other components are arranged inside the machine shell, and the nitrogen can maintain a purity of more than 97%, and can maintain high-purity nitrogen for daily use. When the purity is lower than the set value, an alarm will be prompted. Real-time monitoring of gas pressure and flow rate, the minimum output pressure can be set to ensure the use effect of the spray gun. The flow accumulation function can count the gas consumption.

[0021] (2)The spraying mechanism can discharge paint and spray the product. The compression mechanism separates nitrogen with compressed air first and then aggregates and stores nitrogen. The compression mechanism stores the nitrogen as the medium for painting. The feeding mechanism transports the paint inside it to the inside of the spraying mechanism. The storage tank can store a large amount of paint inside. The feeding mechanism transports the paint inside the storage tank to the spraying mechanism through the automatic feeding mechanism. The triggering mechanism can send a signal to the automatic feeding mechanism when the paint storage in the feeding mechanism is low, so that the automatic feeding mechanism adds paint to the inside of the feeding mechanism. When the paint storage in the feeding mechanism is high, the triggering mechanism sends a signal to the automatic feeding mechanism, and the automatic feeding mechanism stops adding paint to the inside of the feeding mechanism. The stirring mechanism can stir the paint inside the feeding mechanism to prevent the paint inside the feeding mechanism from precipitating after the spraying mechanism stops spraying for a period of time, thus affecting the spraying effect. When the nitrogen compressed by the compression mechanism enters the inside of the conveying mechanism, it can assist the conveying mechanism to spray paint, thereby improving the spraying efficiency. And during the feeding process of the automatic feeding mechanism, the compressed nitrogen provided by the compression mechanism enters the inside of the storage tank, and the nitrogen squeezes the paint, accelerating the feeding efficiency of the paint into the inside of the feeding mechanism.

[0022] (3)The hollow fiber module is composed of multiple hollow fiber modules, which is convenient for quickly separating nitrogen in the air. The mechanical stop valve is vertically arranged on the pipeline above the fiber membrane; the hollow fiber membrane groups are installed in series inside the casing; the nitrogen tank is arranged inside the casing to store the purified nitrogen; the air and safety valve are fixedly arranged between the two stop valves on the pipeline for safety protection, and automatically pops open to relieve pressure when the air pressure exceeds a certain range value; by setting a touch screen on the surface of the casing, the working state is displayed in real time and the operation of the equipment is controlled; and the nitrogen temperature can be adjusted through the touch screen; a nitrogen concentration analyzer is arranged on the casing to detect the nitrogen purity in real time; indicator lights and emergency stop buttons are arranged on the casing. The lighting situation of the indicator lights is used as a prompt for whether the equipment is powered on and running; the emergency stop button is a device that manually presses to stop the operation of the equipment in case of emergency, and it is a safe and necessary master switch. Multiple pressure gauges are arranged on the casing to display the inlet compressed air pressure and the outlet nitrogen pressure.

[0023] (4) Part of the gas entering the paint can enters the spray mechanism through the pipe, and the other part enters the paint can through the air distribution hole. The diameter of the air distribution hole is smaller than the diameter of the pipe. When the gas enters the paint can, it squeezes the upper surface of the paint and forces the paint to move toward the outside of the paint can. When the nitrogen is discharged from the spray mechanism and the paint is discharged through the siphon principle, the pressure inside the paint can increases and cooperates with the process of the spray mechanism discharging the paint, which will increase the discharge efficiency of the paint. The sealing gasket is vertically attached to one side of the wind blade. When a pressure difference is generated inside the paint can, the sealing gasket prevents the gas from escaping from the two slots at the same time, which is not conducive to the rotation of the wind blade. When the sealing gasket is attached to one side of the wind blade, the gas can only be discharged from the other slot, thereby causing the wind blade to rotate continuously.

[0024] (5) The opening time of the first baffle and the second baffle is staggered by setting an automatic feeding mechanism, so that the first baffle is opened first, and the high-pressure nitrogen enters the interior of the storage box through the air inlet groove. Then, the second baffle is opened, and the discharge groove at the bottom starts to feed, so that the efficiency of paint entering the paint tank is improved, which is convenient for rapid feeding.

[0025] (6) The scraping ring set under the movable plate scrapes the inner wall of the paint can as the movable plate moves downward, so that the paint adsorbed on the inner wall of the paint can flows to the bottom of the paint can, reducing the amount of paint adsorption and improving the utilization rate of the paint; the trigger rod is set to move up and down with the movable block. When the movable block moves downward and drives the trigger rod to contact the trigger block, the electric telescopic rod extends and starts to add paint to the inside of the paint can; when the movable block moves upward and drives the trigger rod to contact the trigger block, the electric telescopic rod contracts and stops adding paint to the inside of the paint can. Brief Description of the Figures

[0026] The present invention is further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a cross-sectional view of the present invention;

[0029] Figure 3 It is a connection diagram of the feeding mechanism and the compression mechanism;

[0030] Figure 4 It is a cross-sectional view of the spraying mechanism and the feeding mechanism of the present invention;

[0031] Figure 5 For Figure 4 The enlarged structural diagram at A in ;

[0032] Figure 6 ForFigure 4 Schematic diagram of the enlarged structure at position B in

[0033] Figure 7 is Figure 4 Schematic diagram of the enlarged structure at position C in

[0034] Figure 8 is Figure 4 Schematic diagram of the enlarged structure at position D in

[0035] Figure 9 Schematic connection diagram of the stirring mechanism of the present invention;

[0036] Figure 10 is Figure 9 Schematic diagram of the enlarged structure at position E in

[0037] Figure 11 Schematic diagram of the trigger mechanism;

[0038] Figure 12 Internal connection schematic diagram of the stirring mechanism;

[0039] Figure 13 Internal structure schematic diagram of the paint can.

[0040] In the figure: 1. Machine shell; 11. Valve body; 12. Feeding port; 2. Spraying mechanism; 21. Spray gun; 22. Hose; 23. Bracket; 24. Trigger; 25. Spraying port; 26. Plugging needle; 27. Coating port; 28. Channel; 29. Air outlet; 3. Feeding mechanism; 31. Paint can; 32. Connecting pipe; 33. Discharge port; 4. Compression mechanism; 41. Nitrogen tank; 42. Hollow fiber module; 43. Inlet pipe; 5. Storage box; 6. Automatic feeding mechanism; 61. Feeding rod; 63. Electric telescopic rod; 64. First baffle; 65. Air inlet groove; 66. First elastic member; 67. Slide groove; 68. Slide rod; 69. Abutting rod; 610. Pulling rope; 611. First rotating pin; 612. Second baffle; 613. Limiting groove; 614. Limiting rod; 615. Inner groove; 616. Second elastic member; 617. Discharge groove; 618. First push rod; 619. Second push rod; 620. Second rotating pin; 621. First torsion spring; 7. Trigger mechanism; 71. Movable plate; 72. Scraping ring; 73. Link; 74. Trigger rod; 75. Guide groove; 76. Trigger block; 8. Stirring mechanism; 81. Transmission rod; 82. Stirring rod; 83. Support plate; 84. Wind vane plate; 85. Block groove; 86. Pushing block; 87. Fixed plate; 88. Third rotating pin; 89. Second torsion spring; 810. Air distribution hole; 811. Notch; 812. Partition plate; 813. Sealing gasket; 814. Flipping block; 815. Support rod. Detailed implementation manner

[0041] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0042] In one embodiment, please refer to the accompanying specification Figures 1 - 13 As shown, a nitrogen-saving spraying device of the present invention includes a machine shell 1. Inside the machine shell 1, there is a material storage tank 5 for storing paint. On the machine shell 1, there is a spraying mechanism 2 for spraying the paint onto the surface of an object. Inside the machine shell 1, there is a compression mechanism 4 connected to the spraying mechanism 2 for compressing nitrogen. Inside the machine shell 1, there is a feeding mechanism 3 connected to the spraying mechanism 2 for conveying the paint into the inside of the spraying mechanism 2. Inside the feeding mechanism 3, there is a stirring mechanism 8 for stirring the paint. Inside the feeding mechanism 3, there is an automatic feeding mechanism 6 for conveying the paint inside the material storage tank 5 into the inside of the feeding mechanism 3. On the feeding mechanism 3, there is a triggering mechanism 7 for triggering the automatic feeding mechanism 6, and the automatic feeding mechanism 6 conveys the paint into the inside of the feeding mechanism 3.

[0043] An adaptive heating device (prior art, not described here in detail) is installed inside the machine shell 1. Since the power and heating temperature of the heating device are very high and the paint itself is flammable and explosive, the heating device is explosion-proof treated (prior art, not described here again), so that the nitrogen can be maintained at the set temperature (the error is not less than 5 degrees Celsius), which is beneficial to improving the activity of nitrogen molecules, reducing the use of solvents, reducing VOC emissions, and is beneficial to the use of paint when the temperature is low in winter. When the temperature fails to reach the set value, gas transportation is not allowed and use is restricted. Inside the machine shell 1, there are precision control internal solenoid valves and other components, which can maintain a purity of more than 97% and can maintain high-purity nitrogen for daily use. When the purity is lower than the set value, an alarm will be prompted. The real-time monitoring of gas pressure and flow rate can set the minimum output pressure to ensure the use effect of the spraying mechanism 2. The flow accumulation function can count the gas consumption. The above three functions are all to ensure that the output gas is matched with the spraying, is stable and reliable, and is related.

[0044] The spraying mechanism 2 can discharge paint and spray the product. The compression mechanism 4 first separates nitrogen with compressed air and then accumulates and stores nitrogen. The compression mechanism 4 stores the nitrogen as the medium for painting. The feeding mechanism 3 transports the paint inside it to the inside of the spraying mechanism 2. The storage tank 5 can store a large amount of paint inside it. The feeding mechanism 3 transports the paint inside the storage tank 5 to the spraying mechanism 2 through the automatic feeding mechanism 6. The trigger mechanism 7 can send a signal to the automatic feeding mechanism 6 when the paint storage in the feeding mechanism 3 is low, so that the automatic feeding mechanism 6 adds paint to the inside of the feeding mechanism 3. When the paint storage in the feeding mechanism 3 is high, the trigger mechanism 7 sends a signal to the automatic feeding mechanism 6, and the automatic feeding mechanism 6 stops adding paint to the inside of the feeding mechanism 3. The stirring mechanism 8 can stir the paint inside the feeding mechanism 3 to prevent the paint inside the feeding mechanism 3 from precipitating after the spraying mechanism 2 stops spraying for a period of time, thus affecting the spraying effect. When the nitrogen compressed by the compression mechanism 4 enters the inside of the conveying mechanism, it can assist the conveying mechanism to spray paint, thereby improving the spraying efficiency. And during the feeding process of the automatic feeding mechanism 6, the compressed nitrogen provided by the compression mechanism 4 enters the inside of the storage tank 5, and the nitrogen squeezes the paint, accelerating the feeding efficiency of the paint into the inside of the feeding mechanism 3.

[0045] The compression mechanism 4 includes a nitrogen tank 41 arranged inside the machine shell 1. A plurality of hollow fiber modules 42 are arranged on one side of the nitrogen tank 41. An air inlet pipe 43 is arranged on the hollow fiber module 42, and the compressed nitrogen is transported into the nitrogen tank 41 through the air inlet pipe 43.

[0046] The hollow fiber module 42 is composed of a plurality of hollow fiber modules, which is convenient for quickly separating nitrogen in the air. The mechanical stop valve is vertically arranged on the pipeline above the fiber membrane; the hollow fiber membrane groups 42 are installed in series inside the machine shell 1; the nitrogen tank 41 is arranged inside the machine shell 1 to store the purified nitrogen; the air and safety valve are fixedly arranged between the two stop valves of the pipeline for safety protection, and automatically pops open to relieve pressure when the air pressure exceeds a certain range value; by setting a touch screen on the surface of the machine shell 1, the working state is displayed in real time and the operation of the equipment is controlled; and the nitrogen temperature can be adjusted through the touch screen; a gas analyzer is arranged on the machine shell 1 to detect the nitrogen purity in real time; indicator lights and emergency stop buttons are arranged on the machine shell 1. The lighting condition of the indicator lights is used as a prompt for whether the equipment is powered on and running; the emergency stop button is a device that manually presses to stop the operation of the equipment in case of emergency, and it is a safe and necessary master switch. A plurality of pressure gauges are arranged on the machine shell 1 to display the inlet compressed air pressure and the outlet nitrogen pressure.

[0047] The feeding mechanism 3 includes a paint can 31 disposed inside the machine housing 1. A connecting pipe 32 is provided on the paint can 31. The connecting pipe 32 is communicated with the nitrogen tank 41, and a one-way valve is disposed inside the connecting pipe 32. An outlet 33 is provided at the bottom of the paint can 31, and the outlet 33 is connected to the spraying mechanism 2.

[0048] The stirring mechanism 8 includes a stirring assembly and a ratchet assembly. The stirring assembly is used for stirring the paint inside the paint can 31, and the ratchet assembly is used for limiting the rotation of the stirring assembly.

[0049] The stirring assembly includes a transmission rod 81 disposed inside the paint can 31. A plurality of groups of stirring rods 82 are provided on the transmission rod 81, and each group of the stirring rods 82 has two and is symmetrically arranged. A support plate 83 is disposed inside the paint can 31. The stirring rod 82 passes through the inside of the support plate 83 and rotates on the support plate 83. Above the stirring rod 82, a plurality of uniformly distributed support rods 815 are provided. A wind vane plate 84 is provided on the support rod 815, and the wind vane plate 84 has a concave structure. A partition plate 812 is disposed inside the paint can 31. Two notches 811 are provided on the partition plate 812 for the rotating wind vane plate 84 to pass through. A sealing gasket 813 is provided on one side of the partition plate 812, and the sealing gasket 813 is in sealing fit with the wind vane plate 84. An air distribution hole 810 is provided on the support plate 83, and the air distribution hole 810 is used for communicating the upper and lower spaces of the support plate 83.

[0050] When the high-pressure nitrogen gas output from the inside of the nitrogen gas tank 41 enters the upper inside of the paint tank 31, the internal pressure of the paint tank 31 increases. When the spraying mechanism 2 performs spraying, the gas inside the paint tank 31 will move rapidly towards the spraying mechanism 2, causing a pressure difference between the inside and outside of the paint tank 31; the pressure difference will push the wind vane 84 to rotate. The concave structure of the wind vane 84 can facilitate the rapid rotation of the wind vane 84 by nitrogen gas. When the wind vane 84 rotates, the wind vane 84 drives the transmission rod 81 to rotate. When the transmission rod 81 rotates, it drives the stirring rod 82 to rotate, and the stirring rod 82 stirs the paint inside the paint tank 31; a part of the gas entering the paint tank 31 enters the inside of the spraying mechanism 2 through a pipeline, and another part enters the inside of the paint tank 31 through the air distribution holes 810. The diameter size of the air distribution holes 810 is smaller than the diameter size of the pipeline; when the gas enters the paint tank 31, it squeezes the upper surface of the paint, forcing the paint to move towards the outside of the paint tank 31. When the nitrogen gas is discharged from the spraying mechanism 2 and the paint is discharged by the siphon principle, the internal pressure of the paint tank 31 increases and cooperates with the process of discharging the paint by the spraying mechanism 2, which will increase the discharge efficiency of the paint; by setting the sealing gasket 813 to be vertically attached to one side of the wind vane 84, when a pressure difference is generated inside the paint tank 31, the sealing gasket 813 prevents the gas from escaping simultaneously from the two notch grooves 811, which is not conducive to the rotation of the wind vane 84; when the sealing gasket 813 is attached to one side of the wind vane 84, the gas can only be discharged from the other notch groove 811, thereby causing the wind vane 84 to rotate continuously.

[0051] The ratchet assembly includes a plurality of pushing blocks 86 arranged on the outer surface of the transmission rod 81. One side of the pushing block 86 is provided with a corresponding flipping block 814. Above the support plate 83, there is a fixing plate 87. Inside the fixing plate 87, there is a block groove 85. Inside the block groove 85, a third rotating pin 88 is rotatably arranged. A second torsion spring 89 is sleeved on the third rotating pin 88. The third rotating pin 88 is connected to the flipping block 814, and the second torsion spring 89 is used to push the flipping block 814 to reset.

[0052] By setting the ratchet assembly to prevent the wind vane 84 from rotating in the reverse direction after the gas enters the paint tank 31, the flipping block 814 can only rotate in one direction, so that the high-pressure nitrogen gas squeezes the wind vane 84 to rotate in one direction inside the paint tank 31, and when rotating, it can just push open the sealing gasket 813.

[0053] The automatic feeding mechanism 6 includes a pressurizing component and a feeding component. The pressurizing component is used to increase the pressure above the paint to force the paint to accelerate into the paint tank 31; the feeding component is used to convey the squeezed paint into the paint tank 31.

[0054] The pressurizing assembly includes an electric telescopic rod 63 disposed on the inner wall of the paint can 31. A feeding rod 61 is connected to the telescopic end of the electric telescopic rod 63. An air inlet groove 65 is formed in the paint can 31, and the air inlet groove 65 is connected to the connecting pipe 32, and the connecting pipe 32 is connected to the storage box 5. A first baffle 64 is disposed on the air inlet groove 65 to block the air inlet groove 65. At least two sliding grooves 67 are provided on the side wall of the air inlet groove 65. A sliding rod 68 is correspondingly disposed in each of the sliding grooves 67, and the end of the sliding rod 68 is connected to the side wall of the first baffle 64, and the sliding rod 68 slides inside the sliding groove 67. A first elastic member 66 is disposed inside the sliding groove 67, and the first elastic member 66 is used to pull the first baffle 64 back to its original position.

[0055] A first push rod 618 is disposed on the outer wall of the feeding rod 61, a second push rod 619 is disposed on the side wall of the first baffle 64, a second pivot pin 620 is disposed between the first push rod 618 and the second push rod 619, and a first torsion spring 621 is sleeved on the second pivot pin 620.

[0056] The feeding assembly includes a discharge chute 617 disposed on the inner wall of the paint can 31. A second baffle 612 is rotatably disposed on the discharge chute 617 to open and close the discharge chute 617. A first pivot pin 611 is disposed on the second baffle 612, and the first pivot pin 611 is rotatably connected to the paint can 31. An inner groove 615 is disposed on the inner wall of the paint can 31. A plurality of second elastic members 616 are disposed inside the inner groove 615. A limiting rod 614 is disposed inside the inner groove 615, and the second elastic members 616 are used to push the limiting rod 614 back to its original position. A lower inner groove 615 is disposed inside the second baffle 612. The limiting rod 614 is engaged with the limiting groove 613, and one end of the limiting rod 614 is an inclined surface. An abutting rod 69 is disposed at the bottom of the feeding rod 61 to push the limiting rod 614 downward. A pulling rope 610 is disposed at the bottom of the feeding rod 61, and one end of the pulling rope 610 is connected to the second baffle 612, and the pulling rope 610 is used to pull the second baffle 612 to block the discharge chute 617.

[0057] When the trigger mechanism 7 transmits a signal to the electric telescopic rod 63, the electric telescopic rod 63 starts to extend. The electric telescopic rod 63 will first move downward. The telescopic end of the electric telescopic rod 63 drives the feeding rod 61 to move downward. The downward movement of the feeding rod 61 first drives the second push rod 619 to move. Since the first push rod 618 and the second push rod 619 are in contact with each other, the first push rod 618 pushes the first baffle 64 to move. The movement of the first baffle 64 drives the sliding rod 68 to slide inside the sliding groove 67. The first baffle 64 is extruded out of the inside of the air inlet groove 65, and the air inlet groove 65 is opened until the first push rod 618 is flush with the second push rod 619. At this time, the first push rod 618 and the second push rod 619 are in a taut state; the air inlet groove 65 becomes the maximum air intake. When the discharging rod just moves downward, the air inlet groove 65 is immediately opened to start admitting air. Nitrogen enters the inside of the storage bin 5 from the air inlet groove 65, and the nitrogen is located above the storage bin 5, increasing the pressure inside the storage bin 5; during the gradual movement of the first push rod 618 and the second push rod 619, the abutting rod 69 at the bottom of the feeding rod 61 continuously approaches the end of the limiting rod 614. When the first push rod 618 and the second push rod 619 are in the horizontal position, the limiting rod 614 is pushed downward to reach the maximum stroke. At this time, the limiting rod 614 is completely separated from the inside of the limiting groove 613; the discharging groove 617 and the storage bin 5 are connected. At this time, the pressure inside the storage bin 5 pushes the second baffle 612 to rotate around the first rotating pin 611. At this time, the inside of the paint can 31 starts to feed. By staggering the opening times of the first baffle 64 and the second baffle 612 through the set automatic feeding mechanism 6, the first baffle 64 is opened first. High-pressure nitrogen enters the inside of the storage bin 5 through the air inlet groove 65. Subsequently, the second baffle 612 is opened, and the discharging groove 617 at the bottom starts to feed, improving the efficiency of the paint entering the inside of the paint can 31 and facilitating rapid feeding.

[0058] When the trigger mechanism 7 gives a signal to stop the feeding, the first baffle 64 is closed first, and then the second baffle 612 is closed; after the first baffle 64 is closed, a negative pressure is generated inside the storage bin 5, slowing down the discharge of the paint from the bottom discharge chute 617, thus facilitating the closing of the second baffle 612. When the feeding rod 61 moves upward along with the electric telescopic rod 63, the first push rod 618 moves upward along with the feeding rod 61, and rotation occurs between the first push rod 618 and the second push rod 619. At this time, the first push rod 618 and the second push rod 619 no longer abut against each other; at this time, under the action of the high-pressure nitrogen gas inside the paint can 31 and the first elastic member 66, it instantaneously resets, and the first baffle 64 blocks the air inlet groove 65; then the feeding rod 61 gradually moves upward, the feeding rod 61 drives the pulling rope 610 to be taut, and the pulling rope 610 pulls the second baffle 612 to rotate around the first rotating pin 611 until the end of the limiting rod 614 is caught inside the limiting groove 613; since the end of the limiting rod 614 is an inclined surface, when the side surface of the second baffle 612 contacts the limiting rod 614, the limiting rod 614 is squeezed and the limiting rod 614 moves downward. When the limiting groove 613 and the limiting rod 614 are aligned, under the action of the second elastic member 616, the limiting rod 614 enters the limiting groove 613 to limit the second baffle 612, achieving the effect of blocking.

[0059] The trigger mechanism 7 includes a movable plate 71 sleeved on the transmission rod 81. A scraping ring 72 is provided at the bottom of the movable plate 71. The scraping ring 72 is a hollow frustum-shaped structure, and the movable plate 71 is a hollow structure; a connecting rod 73 is provided on the movable plate 71, a trigger rod 74 is provided at the top of the connecting rod 73, a guiding groove 75 is provided on the inner wall of the paint can 31, and a trigger block 76 is provided inside the guiding groove 75. The trigger block 76 is electrically connected to the electric telescopic rod 63.

[0060] By providing the movable plate 71, it can float on the surface of the paint. The inside of the movable plate 71 is hollow, increasing the buoyancy of the movable plate 71 on the paint surface, so that when the paint liquid level rises, the movable plate 71 moves upward; when the paint liquid level drops, the movable plate 71 moves downward under its own gravity. The scraping ring 72 provided below the movable plate 71 scrapes the inner wall of the paint can 31 when moving downward along with the movable plate 71, making the paint adsorbed on the inner wall of the paint can 31 flow to the bottom of the paint can 31, reducing the paint adsorption amount and improving the paint utilization rate; by providing the trigger rod 74 that moves up and down along with the movable plate 71, when the movable plate 71 moves downward to drive the trigger rod 74 to contact the trigger block 76, the electric telescopic rod 63 extends and starts to add paint to the inside of the paint can 31; when the movable plate 71 moves upward to drive the trigger rod 74 to contact the trigger block 76, the electric telescopic rod 63 contracts and stops adding paint to the inside of the paint can 31.

[0061] The spraying mechanism 2 includes a hose 22 connected to the machine housing 1. A paint gun 21 is provided on the hose 22. A spraying port 25 is provided at the end of the paint gun 21. A paint port 27 and an air outlet 29 are provided inside the paint gun 21. The air outlet 29 is located on both sides of the paint port 27. A channel 28 communicating with the air outlet 29 is provided inside the paint gun 21. A trigger 24 and a plugging needle 26 are provided on the paint gun 21. The plugging needle 26 is used to plug the paint port 27. The trigger 24 is used to push the plugging needle 26 to move inside the paint port 27 and open the paint port 27. A clamping frame 23 is provided on the machine housing 1. The clamping frame 23 is used to place the paint gun 21.

[0062] By discharging air through the provided air outlet 29, negative pressure will be generated at the spraying port 25, thereby sucking out and atomizing the paint inside the paint port 27, so that the paint can achieve the spraying effect.

[0063] A feeding port 12 for adding the paint inside the storage tank 5 is provided on the machine housing 1. A valve body 11 is provided on the storage tank 5. The valve body 11 is used to release the gas inside the storage tank 5.

[0064] By providing the feeding port 12, it is convenient to add a large amount of paint into the storage tank 5. By providing the valve body 11, the gas balance inside the storage tank 5 can be adjusted when adding paint to the storage tank 5.

[0065] When the present invention is in use, the high-pressure gas inside the nitrogen tank 41 serves as the medium for spraying paint. The nitrogen gas passes through the inside of the paint tank 31, causing the internal pressure of the paint tank 31 to increase. When the gas exits through the air outlet 29, a negative pressure is generated at the spraying port 25, thereby sucking out and atomizing the paint inside the paint port 27, creating a pressure difference between the inside and outside of the paint tank 31. The pressure difference causes the wind vane plate 84 to rotate, and the wind vane plate 84 drives the transmission rod 81 to rotate. When the transmission rod 81 rotates, it drives the stirring rod 82 to rotate, and the stirring rod 82 stirs the paint inside the paint tank 31. When the gas enters the paint tank 31, it squeezes the upper surface of the paint, forcing the paint to move towards the outside of the paint tank 31, increasing the discharge efficiency of the paint. As the paint inside the paint tank 31 is continuously discharged through the paint port 27, the paint liquid level drops. When the movable plate 71 moves downward and drives the trigger rod 74 to contact the trigger block 76, the electric telescopic rod 63 extends, driving the feeding rod 61 to move downward. The feeding rod 61 first drives the second push rod 619 to move downward. Since the first push rod 618 and the second push rod 619 are in contact with each other, the first push rod 618 pushes the first baffle 64 to move. The first baffle 64 drives the sliding rod 68 to slide inside the sliding groove 67, and the first baffle 64 is squeezed out of the inside of the air inlet groove 65, and the air inlet groove 65 is opened until the first push rod 618 and the second push rod 619 are flush. At this time, the first push rod 618 and the second push rod 619 are in a taut state; the air inlet groove 65 becomes the maximum air intake. When the feeding rod just moves downward, the air inlet groove 65 is immediately opened to start admitting air. Nitrogen gas enters the inside of the storage box 5 through the air inlet groove 65, and the nitrogen gas is located above the storage box 5, increasing the pressure inside the storage box 5. During the gradual movement of the first push rod 618 and the second push rod 619, the abutting rod 69 at the bottom of the feeding rod 61 continuously approaches the end of the limiting rod 614. When the first push rod 618 and the second push rod 619 are in a horizontal position, the limiting rod 614 is squeezed downward to reach the maximum stroke. At this time, the limiting rod 614 is completely separated from the inside of the limiting groove 613. The discharge groove 617 is connected to the storage box 5. At this time, the pressure inside the storage box 5 pushes the second baffle 612 to rotate around the first rotating pin 611, and at this time, the paint starts to be fed into the paint tank 31. By setting the automatic feeding mechanism 6 to stagger the opening times of the first baffle 64 and the second baffle 612, the first baffle 64 is opened first, and the high-pressure nitrogen gas enters the inside of the storage box 5 through the air inlet groove 65. Subsequently, the second baffle 612 is opened, and the bottom discharge groove 617 starts to feed, improving the efficiency of the paint entering the paint tank 31 and facilitating rapid feeding. When the movable plate 71 moves upward and drives the trigger rod 74 to contact the trigger block 76, the electric telescopic rod 63 contracts.When the feeding rod 61 moves upward along with the electric telescopic rod 63, the first push rod 618 moves upward along with the feeding rod 61, and rotation occurs between the first push rod 618 and the second push rod 619. At this time, the first push rod 618 and the second push rod 619 no longer abut against each other. At this time, under the action of the high-pressure nitrogen gas inside the paint can 31 and the first elastic member 66, it instantaneously resets, and the first baffle 64 blocks the air inlet groove 65. Subsequently, the feeding rod 61 gradually moves upward, the feeding rod 61 drives the pulling rope 610 to be tightened, and the pulling rope 610 pulls the second baffle 612 to rotate around the first rotating pin 611 until the end of the limiting rod 614 is caught inside the limiting groove 613. Since the end of the limiting rod 614 is an inclined surface, when the side surface of the second baffle 612 contacts the limiting rod 614, the limiting rod 614 is squeezed and moves downward. When the limiting groove 613 and the limiting rod 614 are aligned, under the action of the second elastic member 616, the limiting rod 614 enters the inside of the limiting groove 613 to limit the second baffle 612, achieving the blocking effect.

[0066] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of protection required by the present invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A nitrogen energy-saving spraying device, comprising a housing (1), wherein a material storage box (5) is arranged inside the housing (1), wherein the material storage box (5) is used to store paint, and wherein a spraying mechanism (2) is arranged on the housing (1), wherein the spraying mechanism (2) is used to spray paint onto a surface of an object; wherein a compression mechanism (4) connected to the spraying mechanism (2) is arranged inside the housing (1), wherein the compression mechanism (4) is used to compress nitrogen; wherein a feeding mechanism (3) is arranged inside the housing (1), wherein the feeding mechanism (3) is connected to the spraying mechanism (2), wherein the feeding mechanism (3) is connected to the spraying mechanism (2), wherein the feeding mechanism (4) is used to compress nitrogen; The feeding mechanism (3) is used to convey paint to the interior of the spraying mechanism (2); a stirring mechanism (8) is provided inside the feeding mechanism (3), and the stirring mechanism (8) is used to stir the paint; an automatic feeding mechanism (6) is provided inside the feeding mechanism (3), and the automatic feeding mechanism (6) is used to convey the paint inside the storage box (5) to the interior of the feeding mechanism (3); a trigger mechanism (7) is provided on the feeding mechanism (3), and the trigger mechanism (7) is used to trigger the automatic feeding mechanism (6), and the automatic feeding mechanism (6) conveys the paint to the interior of the feeding mechanism (3); The compression mechanism (4) comprises a nitrogen tank (41) arranged inside the casing (1); a plurality of hollow fiber modules (42) are arranged on one side of the nitrogen tank (41); an air intake pipe (43) is arranged on the hollow fiber module (42); and the air intake pipe (43) transports compressed nitrogen into the interior of the nitrogen tank (41); The feeding mechanism (3) comprises a paint can (31) arranged inside the housing (1); a connecting pipe (32) is arranged on the paint can (31), the connecting pipe (32) is communicated with the nitrogen tank (41), and a one-way valve is arranged inside the connecting pipe (32); a discharge port (33) is arranged at the bottom of the paint can (31), and the discharge port (33) is connected to the spraying mechanism (2); The stirring mechanism (8) comprises a stirring assembly and a ratchet assembly, the stirring assembly being used to stir the paint inside the paint can (31), and the ratchet assembly being used to limit the rotation of the stirring assembly; The stirring assembly comprises a transmission rod (81) arranged inside the paint can (31), the transmission rod (81) being provided with a plurality of groups of stirring rods (82), and each group of stirring rods (82) is provided with two stirring rods (82) symmetrically arranged; a support plate (83) is arranged inside the paint can (31), the stirring rods (82) pass through the inside of the support plate (83) and rotate on the support plate (83); a plurality of evenly distributed support rods (815) are arranged above the stirring rods (82), the support rods (815) being provided with fan blades (84), the fan blades (84) The blade plate (84) is in a concave structure; a partition plate (812) is provided inside the paint can (31); the partition plate (812) is provided with two slots (811), and the slots (811) are used for the rotating blade plate (84) to pass through; a sealing gasket (813) is provided on one side of the partition plate (812), and the sealing gasket (813) is fitted and sealed with the blade plate (84); and an air distribution hole (810) is provided on the support plate (83), and the air distribution hole (810) is used to connect the upper and lower spaces of the support plate (83).

2. A nitrogen energy-saving spraying equipment according to claim 1, characterized in that: The ratchet assembly comprises a plurality of pushing blocks (86) arranged on the outer surface of the transmission rod (81), a flip block (814) corresponding to the pushing block (86) is arranged on one side thereof, a fixing plate (87) is arranged above the support plate (83), a block groove (85) is arranged inside the fixing plate (87), a third rotating pin (88) is rotatably arranged inside the block groove (85), a second torsion spring (89) is sleeved on the third rotating pin (88), the third rotating pin (88) is connected to the flip block (814), and the second torsion spring (89) is used to push the flip block (814) to reset.

3. A nitrogen energy-saving spraying equipment according to claim 2, characterized in that: The automatic feeding mechanism (6) comprises a pressurizing component and a feeding component, wherein the pressurizing component is used to increase the pressure above the paint to force the paint to enter the interior of the paint can (31) at an accelerated speed; and the feeding component is used to transport the squeezed paint to the interior of the paint can (31); The pressurizing assembly comprises an electric telescopic rod (63) arranged in the inner wall of the paint can (31), the telescopic end of the electric telescopic rod (63) is connected to a feeding rod (61), the paint can (31) is provided with an air inlet groove (65), the air inlet groove (65) is connected to the connecting pipe (32), and the connecting pipe (32) is connected to the material storage box (5); a first baffle (64) is arranged on the air inlet groove (65), and the first baffle (64) blocks the air inlet groove (65); at least two slide grooves (67) are arranged on the side wall of the air inlet groove (65), and slide rods (68) are arranged inside the slide grooves (67) in a one-to-one correspondence, and the ends of the slide rods (68) are connected to the side walls of the first baffle (64), and the slide rods (68) slide inside the slide grooves (67); a first elastic member (66) is arranged inside the slide groove (67), and the first elastic member (66) is used to pull the first baffle (64) to reset; A first push rod (618) is arranged on the outer wall of the loading rod (61), a second push rod (619) is arranged on the side wall of the first baffle (64), a second rotating pin (620) is arranged between the first push rod (618) and the second push rod (619), and a first torsion spring (621) is sleeved on the second rotating pin (620).

4. A nitrogen energy-saving spraying equipment according to claim 3, characterized in that: The loading assembly comprises a discharge trough (617) arranged on the inner wall of the paint can (31); a second baffle (612) is rotatably arranged on the discharge trough (617); the second baffle (612) is used to open and close the discharge trough (617); a first rotating pin (611) is arranged on the second baffle (612); the first rotating pin (611) is rotatably connected to the paint can (31); an inner groove (615) is arranged on the inner wall of the paint can (31); a plurality of second elastic members (616) are arranged inside the inner groove (615); a limiting rod (614) is arranged inside the inner groove (615); the second elastic member ( 616) is used to push the limit rod (614) to reset; a lower inner groove (615) is provided inside the second baffle (612), the limit rod (614) is engaged with the limit groove (613), and one end of the limit rod (614) is an inclined surface; a contact rod (69) is provided at the bottom of the feeding rod (61), and the contact rod (69) is used to push the limit rod (614) to move downward; a pull rope (610) is provided at the bottom of the feeding rod (61), one end of the pull rope (610) is connected to the second baffle (612), and the pull rope (610) is used to pull the second baffle (612) to block the discharge trough (617).

5. A nitrogen energy-saving spraying equipment according to claim 4, characterized in that: The trigger mechanism (7) comprises a movable plate (71) sleeved on a transmission rod (81); a scraping ring (72) is arranged at the bottom of the movable plate (71); the scraping ring (72) is a hollow truncated cone-shaped structure; the movable plate (71) is a hollow structure; a connecting rod (73) is arranged on the movable plate (71); a trigger rod (74) is arranged at the top of the connecting rod (73); a guide groove (75) is arranged on the inner wall of the paint can (31); a trigger block (76) is arranged inside the guide groove (75); and the trigger block (76) is electrically connected to the electric telescopic rod (63).

6. A nitrogen energy-saving spraying equipment according to claim 5, characterized in that: The spraying mechanism (2) comprises a hose (22) connected to the housing (1), a spray gun (21) being arranged on the hose (22), a spray port (25) being arranged at the end of the spray gun (21), a coating port (27) and an air outlet (29) being arranged inside the spray gun (21), the air outlet (29) being located on both sides of the coating port (27), and a channel (28) communicating with the air outlet (29) being arranged inside the spray gun (21); a trigger (24) and a blocking needle (26) being arranged on the spray gun (21), the blocking needle (26) being used for blocking the coating port (27), the trigger (24) being used for pushing the blocking needle (26) to move inside the coating port (27) and opening the coating port (27), and a bracket (23) being arranged on the housing (1), the bracket (23) being used for placing the spray gun (21).

7. A nitrogen energy-saving spraying equipment according to claim 6, characterized in that: The casing (1) is provided with a feeding port (12) for adding paint to the interior of the material storage box (5), and the material storage box (5) is provided with a valve body (11), and the valve body (11) is used to release the gas inside the material storage box (5).

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