A pneumatic airless spraying device and monitoring method

Abstract

The present invention provides a pneumatic airless spraying device and a monitoring method, the device comprises a pneumatic hydraulic booster pump, the pneumatic hydraulic booster pump is a double-acting pneumatic hydraulic booster pump, comprising a pneumatic motor, the piston of the pneumatic motor is rigidly connected to the plunger in the paint hydraulic pump; a reversing mechanism, the reversing mechanism is a pilot-type full-air-controlled air distribution reversing device, a pilot valve; wherein the pilot valve air inlet pipe is connected to the air source, and the pilot valve is controlled to control the air flow to push the air distribution reversing device to reciprocate, push the piston of the pneumatic motor to do reciprocating motion, and control the movement of the plunger in the paint hydraulic pump to spray. The structure is simple and the operation is convenient. The effect is good.

Description

Technical Field

[0001] The present invention relates to a spraying device and a monitoring method, a large language model technology and a blockchain technology field, and in particular to a pneumatic airless spraying device and a monitoring method. Background Art

[0002] The existing pneumatic airless sprayer is a paint sprayer, which is mainly composed of a cylinder upper cover and a cylinder lower cover connected thereto, the cylinder is placed on a machine base, a piston and a piston rod are arranged in the cylinder, an upper pilot valve body and a lower pilot valve body are also arranged, a plurality of reinforcing ribs are arranged on the top of the cylinder upper cover, and an explosion-proof cover is also arranged on the top.

[0003] The lower cover of the cylinder is provided with an air intake hose and a safety valve. The air intake hose is connected to the oil mist device, the air intake filter element, the pressure regulating valve, the air intake ball valve, the air intake tee and the air intake joint in sequence. The oil mist device is provided with an oil cup, the air intake filter element is provided with a pressure regulating valve, and the air intake tee is provided with an air intake safety valve. In the middle of the lower cover of the cylinder, there is also a paint cylinder and a pump seat, the pump seat is connected to the output joint, and the output joint is provided with a filter assembly. The lower part of the paint cylinder is connected to the suction valve body through a connecting nut. The cylinder is also provided with an observation screw plug, a gas distribution block and a muffler.

[0004] Traditional pneumatic airless sprayers rely on the operator's experience to judge the spraying effect, and there is basically no spraying data after the spraying work is completed. It is also inconvenient to use and operate. Summary of the invention

[0005] The object of the present invention is to provide a pneumatic airless spraying device, comprising:

[0006] A pneumatic hydraulic booster pump, wherein the pneumatic hydraulic booster pump is a double-acting pneumatic hydraulic booster pump, comprising a pneumatic motor, a piston of the pneumatic motor being rigidly connected to a plunger in a paint hydraulic pump;

[0007] The reversing mechanism is a pilot-operated, fully pneumatically controlled gas distribution reversing device.

[0008] Pilot valve;

[0009] Among them, the pilot valve air inlet pipe is connected to the air source, and by controlling the action of the pilot valve, the airflow is controlled to push the air distribution reversing device to reverse, push the piston of the pneumatic motor to reciprocate, and control the movement of the plunger in the paint hydraulic pump to perform spraying.

[0010] Wherein, the pneumatic airless spraying device is also connected to a spray gun, and the spray gun is provided with a flow control device and a flow monitoring device;

[0011] The flow control device is used to control the flow of the spray gun, and the flow monitoring device is used to detect the amount of paint sprayed from the spray gun.

[0012] Wherein, the spray gun is provided with an image acquisition device for acquiring images of the area sprayed by the spray gun.

[0013] The image acquisition device, flow control device and flow monitoring device of the spray gun are also connected to a control chip.

[0014] The control chip collects the image data collected by the image acquisition device and the flow data collected by the flow monitoring device, and inputs them into the large language model for training, so as to obtain the optimal spraying data under different dyes through training.

[0015] Among them, the control chip is also connected to the blockchain network. The optimal spraying data under different dyes calculated by the control chip, as well as the corresponding trained spraying area parameters and spraying flow parameters are encrypted and transmitted to the blockchain network, and are encrypted and saved through the blockchain network.

[0016] According to another aspect of the present invention, the present invention also provides a monitoring method for a pneumatic airless spraying device, comprising:

[0017] Monitor the air pressure and flow in the pneumatic hydraulic booster pump and feed it back to the control chip;

[0018] Monitor the commutation direction of the commutation mechanism and feed it back to the control chip;

[0019] Monitor the action of the pilot valve and feed back to the control chip.

[0020] Among them, it also includes:

[0021] Monitor the paint flow of the spray gun connected to the pneumatic airless spray device and feed it back to the control chip;

[0022] Monitor whether the flow switch of the spray gun connected to the pneumatic airless spray device is on or off, and feed back to the control chip.

[0023] Among them, include:

[0024] The image acquisition device on the spray gun is monitored to acquire images of the spraying area and feed the images back to the control chip.

[0025] Among them, include:

[0026] The control chip collects the image data collected by the image acquisition device and the flow data collected by the flow monitoring device, and inputs them into the large language model for training, so as to obtain the optimal spraying data under different dyes through training;

[0027] The control chip controls the normal operation of the pneumatic airless spraying device according to the monitored air pressure and flow in the pneumatic hydraulic booster pump, the monitored switching direction of the switching mechanism and the monitored action of the pilot valve.

[0028] Among them, include:

[0029] The control chip is also connected to the blockchain network. The optimal spraying data under different dyes calculated by the control chip, as well as the corresponding trained spraying area parameters and spraying flow rate parameters are encrypted and transmitted to the blockchain network, and are encrypted and saved through the blockchain network;

[0030] The control chip also transmits the air pressure and flow data in the monitored pneumatic hydraulic booster pump, the switching direction data of the monitored switching mechanism, and the action data of the monitored pilot valve to the blockchain network after encryption, and saves them after encryption through the blockchain network.

[0031] The present invention also provides a pneumatic airless spraying device, which includes a pneumatic hydraulic booster pump, which is a double-acting pneumatic hydraulic booster pump, including a pneumatic motor, the piston of which is rigidly connected to the plunger in the paint hydraulic pump; a reversing mechanism, which is a pilot-type full-air-controlled air distribution reversing device, a pilot valve; wherein the pilot valve air inlet pipe is connected to the air source, and the pilot valve is controlled to control the air flow to push the air distribution reversing device to reciprocate, push the piston of the pneumatic motor to do reciprocating motion, and control the movement of the plunger in the paint hydraulic pump to spray. The structure is simple and the operation is convenient. The effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The present invention schematically shows an overall schematic diagram of a pneumatic airless spraying device;

[0033] Figure 2 The present invention schematically shows a partial schematic diagram of a pneumatic airless spraying device;

[0034] Figure 3 The present invention schematically shows a partial cross-sectional schematic diagram of a pneumatic airless spraying device.

[0035] Figure 4 The present invention schematically shows a schematic block diagram of a connection control chip of a pneumatic airless spraying device.

[0036] Figure 5 The present invention schematically shows the internal electrical control principle of a pneumatic airless spray device. DETAILED DESCRIPTION

[0037] The following is a detailed description of embodiments of the present invention, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0038] like Figure 1-Figure 5As shown, the present invention provides a pneumatic airless spraying device, comprising:

[0039] Pneumatic hydraulic booster pump, the pneumatic hydraulic booster pump is a double-acting pneumatic hydraulic booster pump, including a pneumatic motor, the piston of the pneumatic motor is rigidly connected to the plunger in the paint hydraulic pump; a reversing mechanism, the reversing mechanism is a pilot-type fully pneumatically controlled air distribution reversing device, a pilot valve; wherein the pilot valve inlet pipe is connected to the air source, and the action of the pilot valve is controlled to control the airflow to push the reversal of the air distribution reversing device, push the piston of the pneumatic motor to reciprocate, and control the movement of the plunger in the paint hydraulic pump to perform spraying.

[0040] The spraying principle of this pneumatic airless spray device is that the main working part is a double-acting pneumatic hydraulic booster pump, and the reversing mechanism is a pilot-type fully pneumatically controlled gas distribution reversing device. After the compressed air enters, when the piston moves to the upper or lower end of the cylinder, the upper or lower pilot valve is actuated, and the air flow is controlled to instantly push the gas distribution reversing device to reverse, so that the piston of the pneumatic motor can reciprocate stably and continuously. Since the piston is rigidly connected to the plunger in the paint hydraulic pump, and the area of ​​the piston is larger than that of the plunger, the inhaled paint is pressurized. The pressurized paint is transported to the airless spray gun through a high-pressure hose, and finally the hydraulic pressure is released at the airless nozzle, and it is instantly atomized and sprayed onto the surface of the object to be coated to form a coating layer.

[0041] This pneumatic airless spraying device, i.e., airless sprayer, is a medium-low pressure, small flow, portable, liftable airless spraying equipment. It is specially used for spraying aircraft corrosion inhibitors, and is also suitable for spraying most traditional conventional coatings such as phenolic, amino, nitro, perchloroethylene, propylene, acrylic acid, etc. It can also be used as a pneumatic hydraulic booster pump in non-coating technology fields. This type of spraying equipment is not suitable for spraying thick film heavy anti-corrosion coatings, inorganic zinc silicate coatings, epoxy glass flake coatings, lanolin coatings, automotive industry PVC coatings, cathode electrophoretic coatings and other special coatings.

[0042] The pneumatic airless spraying device, namely the airless sprayer, is a portable pneumatic airless spraying equipment. Its technical parameters and performance indicators are ahead of similar products in other countries. Its outstanding advantages are: 1) The air distribution reversing device is novel and unique, and will not cause the reversing "dead point" failure, nor will it stop due to frost and ice caused by the "adiabatic expansion" of the exhaust part, and the air distribution reversing action is sensitive and reliable. 2) The air distribution reversing device is a full pneumatic type, which is completely different from other various forms of complex mechanical reversing devices. It will not cause any mechanical failure and has a long service life. The air distribution reversing device does not need to be frequently repaired and maintained, and does not need to frequently replace the moving wear parts, thereby greatly reducing the maintenance workload. 3) The exhaust part is equipped with a muffler with a simple structure that is not easily blocked by dirt and does not need to be frequently cleaned, which greatly reduces the exhaust noise and improves the working environment. 4) All sealing parts of the high-pressure system are all fully hydraulic self-tight structures, which rely on their own hydraulic pressure for sealing and compression compensation, and do not need to frequently replace the sealing ring and adjust the clamping force of the sealing ring. 5) All pressure-bearing parts or moving friction parts are made of high-quality alloys or special materials, ensuring safe and reliable use and a long service life.

[0043] The main working part of the pneumatic airless spray device is a double-acting pneumatic hydraulic booster pump, and the reversing mechanism is a special form of pilot-type fully pneumatically controlled gas distribution reversing device. After the compressed air enters, when the piston moves to the upper or lower end of the cylinder, the upper or lower pilot valve is activated, and the air flow is controlled to instantly push the gas distribution reversing device to reverse, so that the piston of the pneumatic motor can reciprocate stably and continuously. Since the piston is rigidly connected to the plunger in the paint hydraulic pump, and the area of ​​the piston is larger than that of the plunger, the inhaled paint is pressurized. The pressurized paint is transported to the airless spray gun through a high-pressure hose, and finally the hydraulic pressure is released at the airless nozzle, and it is instantly atomized and sprayed onto the surface of the object to be coated to form a coating layer.

[0044] During installation, first connect the connection nut at one end of the high-pressure hose to the output connector of the filter, and connect the other end to the rotary connector of the manual airless spray gun. Depending on the type of paint and the distance between the sprayer and the work site, high-pressure hoses of different specifications and lengths can be used. For conventional paints with slightly lower viscosity, use a high-pressure hose with an inner diameter of 6 mm, and its length can reach about 50 meters. A high-pressure hose of Ф6mm×20M is randomly equipped.

[0045] After the whole machine is placed at the predetermined work position, the compressed air delivered by the air source is connected to the air inlet joint through the air inlet pipe.

[0046] According to the type of paint and coating design requirements, select a suitable nozzle and install it on the spray gun (do not miss the seal). The machine is equipped with a column-type rotary nozzle, which may not be suitable for your actual needs. You can purchase it separately.

[0047] It is necessary to ensure that the frame is well grounded to the earth.

[0048] During use, this type of sprayer is a medium pressure, small flow type airless sprayer. According to the type of paint and coating design requirements, the nozzle specifications can be selected in a wide range. That is, the specifications of our airless nozzles can be adapted from 002 to 023. According to the type of paint and coating design requirements, different specifications of nozzles are selected, and the compressed air consumption also fluctuates in a wide range. About 50-500 liters per minute. Therefore, the corresponding compressed air source pressure and capacity must be selected according to the type of paint and nozzle size.

[0049] To ensure sufficient intake pressure and intake volume, the intake pipeline (including compressed air source network pipeline and intake hose) should have a minimum nominal diameter of 10 mm. If the compressed air pipeline is far away from the sprayer, the diameter of the air pipeline and each valve and joint of the air pipeline should be at least 15 mm, and as large as possible to avoid excessive pressure loss in the air pipeline, which will affect the paint output pressure and flow of the sprayer. Each air source pipeline, air valve and joint should be clean, without rust, sand and other dirt.

[0050] Before using the sprayer, check whether all bolts, nuts, and pipe joints (including the connecting nuts of the suction system) in the sprayer are tightened, and then connect the air source. According to the type of paint, adjust the air intake pressure (turn the regulating valve handwheel clockwise to increase, and counterclockwise to decrease). At this time, the pneumatic hydraulic booster pump of the sprayer will reciprocate continuously and stably. If the reciprocating motion of the pneumatic motor of the sprayer is normal under the no-load pressure condition, the paint suction pipe can be inserted into the paint bucket to inhale the paint. After the sprayer paint hydraulic system circulates under the no-load pressure condition for 2-3 minutes, close the square drain valve and the spray gun. After the pressure of the paint hydraulic system is balanced, the reciprocating motion of the pneumatic hydraulic pump will automatically stop. At this time, the spraying operation can be carried out.

[0051] The paint must be kept clean. For unclean paint, according to the particle size and viscosity of the paint, it should be filtered through a 60-100 mesh filter before spraying to avoid abnormal operation of the sprayer or frequent nozzle blockage during the spraying process, which will affect the spraying construction. In addition, for paint that is easy to precipitate, it should be stirred frequently or even continuously during the spraying process.

[0052] After spraying, raise the sprayer, run the pneumatic hydraulic booster pump without load, and drain the paint channel, paint filter, high-pressure hose, and remaining paint in the spray gun in the paint hydraulic pump. Then, use the thinner or solvent matched with the sprayed paint to circulate under no-load pressure to thoroughly clean all the channels of the paint hydraulic system. When cleaning, the air inlet valve should be opened slightly, and the pressure regulating valve does not need to be closed, so as to avoid the sprayer from malfunctioning due to forgetting to open the pressure regulating valve when using it next time.

[0053] To ensure safe use, the maximum air intake pressure should not exceed 0.6MPa. In order to achieve the ideal atomization degree of the paint and the best operating state of the sprayer, the minimum air intake pressure should not be less than 0.3MPa.

[0054] When the sprayer works continuously for a long time and the "frost accumulation" inside and outside the muffler is serious, a water separator and air dryer should be installed before the compressed air is input into the sprayer, and the muffler should be removed. Alternatively, the oil in the oil cup of the sprayer's air intake system oil mist device should be replaced with "antifreeze for automobile water tanks". The water separator and air dryer can be purchased or made by the user according to actual needs. "Antifreeze for automobile water tanks" can be purchased everywhere.

[0055] like Figure 1-Figure 5 As shown, the pneumatic airless spray device is also connected to a spray gun, and the spray gun is provided with a flow control device and a flow monitoring device. The flow control device is used to control the flow of the spray gun, and the flow monitoring device is used to detect the amount of paint sprayed from the spray gun.

[0056] The flow control device is a flow controller that controls the amount of paint sprayed by controlling the flow aperture size and the spray flow rate. By controlling the amount of paint sprayed, the spraying of quantitative paint in a directional area is achieved. It ensures that the spraying reaches the predetermined thickness and the predetermined effect. The flow monitor device is used to monitor the amount of paint sprayed at a predetermined time or in a predetermined area and collect corresponding data.

[0057] The spray gun is provided with an image acquisition device for acquiring images of the spraying area. By designing the image acquisition device on the airless spray gun, the image range of the spray gun spraying can be calculated and acquired, which is convenient for calculating the spraying area.

[0058] The image acquisition device, flow control device and flow monitoring device of the spray gun are also connected to a control chip. The control chip collects the image data collected by the image acquisition device and the flow data collected by the flow monitoring device, and inputs them into the large language model for training, so as to obtain the optimal spraying data under different dyes through training.

[0059] The chip controls the flow rate of paint sprayed by the spray gun and the spraying area. The spraying area is calculated by referring to the scale and image recognition on the spraying picture collected by the image acquisition device, which can be realized by existing image recognition technology.

[0060] Through the intelligence of the large language model technology, according to the best spraying scheme model, the collected spraying area parameters and spraying flow parameters are input, and the large language model training is carried out to finally obtain an optimal spraying scheme. Then the flow control device is controlled by the control chip to control the flow, and the spraying area image is collected by the image acquisition device, and finally the best spraying effect is obtained.

[0061] In addition, the control chip is also connected to the blockchain network. The optimal spraying data under different dyes calculated by the control chip, as well as the corresponding trained spraying area parameters and spraying flow parameters are encrypted and transmitted to the blockchain network, and are encrypted and saved through the blockchain network.

[0062] By connecting the optimal spraying data for different dyes calculated by the control chip to the blockchain network and encrypting and saving them through the blockchain network, these data can be encrypted and protected, and data transactions can be conducted without leaking technical secrets, thereby improving data utilization. This ensures that when spraying in the same range in the future, the optimal data previously trained by the large model can be used for spraying, thereby improving the spraying effect.

[0063] In addition, in addition to saving the optimal spraying data, the corresponding training spraying area parameters and spraying flow parameters are also encrypted and transmitted to the blockchain network. This ensures that the training parameters can be traced, and that the original parameters are available during subsequent upgrades of the large language model network. This ensures data security and the uniqueness and authenticity of the large language model training data, which is conducive to the mature and stable update and iteration of the large language model training data.

[0064] According to another aspect of the present invention, the present invention also provides a monitoring method for a pneumatic airless spraying device, comprising:

[0065] Monitor the air pressure and flow in the pneumatic hydraulic booster pump and feed it back to the control chip;

[0066] Monitor the commutation direction of the commutation mechanism and feed it back to the control chip;

[0067] Monitor the action of the pilot valve and feed back to the control chip.

[0068] Monitor the paint flow of the spray gun connected to the pneumatic airless spray device and feed it back to the control chip;

[0069] Monitor whether the flow switch of the spray gun connected to the pneumatic airless spray device is on or off, and feed back to the control chip.

[0070] The image acquisition device on the spray gun is monitored to acquire images of the spraying area and feed the images back to the control chip.

[0071] The control chip collects the image data collected by the image acquisition device and the flow data collected by the flow monitoring device, and inputs them into the large language model for training, so as to obtain the optimal spraying data under different dyes through training;

[0072] The control chip controls the normal operation of the pneumatic airless spraying device according to the monitored air pressure and flow in the pneumatic hydraulic booster pump, the monitored switching direction of the switching mechanism and the monitored action of the pilot valve.

[0073] The control chip is also connected to the blockchain network. The optimal spraying data under different dyes calculated by the control chip, as well as the corresponding trained spraying area parameters and spraying flow parameters are encrypted and transmitted to the blockchain network, and are encrypted and saved through the blockchain network.

[0074] The control chip also transmits the air pressure and flow data in the monitored pneumatic hydraulic booster pump, the switching direction data of the monitored switching mechanism, and the action data of the monitored pilot valve to the blockchain network after encryption, and saves them after encryption through the blockchain network.

[0075] By connecting the optimal spraying data under different dyes calculated by the control chip to the blockchain network and encrypting and saving them through the blockchain network, these data can be encrypted and protected, and data transactions can be carried out without leaking technical secrets, thereby improving data utilization.

[0076] In addition, in addition to saving the optimal spraying data, the corresponding training spraying area parameters and spraying flow parameters are also encrypted and transmitted to the blockchain network. This ensures that the training parameters can be traced, and that the original parameters are available during subsequent upgrades of the large language model network. This ensures data security and the uniqueness and authenticity of the large language model training data, which is conducive to the mature and stable updating of the large language model training data.

[0077] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pneumatic airless spraying device, characterized in that: include: A pneumatic hydraulic booster pump, wherein the pneumatic hydraulic booster pump is a double-acting pneumatic hydraulic booster pump, comprising a pneumatic motor, a piston of the pneumatic motor being rigidly connected to a plunger in a paint hydraulic pump; The reversing mechanism is a pilot-operated, fully pneumatically controlled gas distribution reversing device. Pilot valve; Among them, the pilot valve air inlet pipe is connected to the air source, and by controlling the action of the pilot valve, the airflow is controlled to push the air distribution reversing device to reverse, push the piston of the pneumatic motor to reciprocate, and control the movement of the plunger in the paint hydraulic pump to perform spraying.

2. The pneumatic airless spraying device according to claim 1, characterized in that: The pneumatic airless spraying device is also connected to a spray gun, and the spray gun is provided with a flow control device and a flow monitoring device; The flow control device is used to control the flow of the spray gun, and the flow monitoring device is used to detect the amount of paint sprayed from the spray gun.

3. The pneumatic airless spraying device according to claim 2, characterized in that: The spray gun is provided with an image acquisition device for acquiring images of the area sprayed by the spray gun.

4. The pneumatic airless spraying device according to claim 3, characterized in that: The image acquisition device, flow control device and flow monitoring device of the spray gun are also connected to a control chip. The control chip collects the image data collected by the image acquisition device and the flow data collected by the flow monitoring device, and inputs them into the large language model for training, so as to obtain the optimal spraying data under different dyes through training.

5. The pneumatic airless spraying device according to claim 4, characterized in that: The control chip is also connected to the blockchain network. The optimal spraying data under different dyes calculated by the control chip, as well as the corresponding trained spraying area parameters and spraying flow parameters are encrypted and transmitted to the blockchain network, and are encrypted and saved through the blockchain network.

6. A monitoring method for a pneumatic airless spraying device: characterized in that, include: Monitor the air pressure and flow in the pneumatic hydraulic booster pump and feed it back to the control chip; Monitor the commutation direction of the commutation mechanism and feed it back to the control chip; Monitor the action of the pilot valve and feed back to the control chip.

7. The monitoring method of the pneumatic airless spraying device according to claim 6 is characterized in that: Also includes: Monitor the paint flow of the spray gun connected to the pneumatic airless spray device and feed it back to the control chip; Monitor whether the flow switch of the spray gun connected to the pneumatic airless spray device is on or off, and feed back to the control chip.

8. The monitoring method of the pneumatic airless spraying device according to claim 7 is characterized in that: include: The image acquisition device on the spray gun is monitored to acquire images of the spraying area and feed the images back to the control chip.

9. The monitoring method of the pneumatic airless spraying device according to claim 8, characterized in that: include: The control chip collects the image data collected by the image acquisition device and the flow data collected by the flow monitoring device, and inputs them into the large language model for training, so as to obtain the optimal spraying data under different dyes through training; The control chip controls the normal operation of the pneumatic airless spraying device according to the monitored air pressure and flow in the pneumatic hydraulic booster pump, the monitored switching direction of the switching mechanism and the monitored action of the pilot valve.

10. The monitoring method of the pneumatic airless spraying device according to claim 9, characterized in that: include: The control chip is also connected to the blockchain network. The optimal spraying data under different dyes calculated by the control chip, as well as the corresponding trained spraying area parameters and spraying flow rate parameters are encrypted and transmitted to the blockchain network, and are encrypted and saved through the blockchain network; The control chip also transmits the air pressure and flow data in the monitored pneumatic hydraulic booster pump, the switching direction data of the monitored switching mechanism, and the action data of the monitored pilot valve to the blockchain network after encryption, and saves them after encryption through the blockchain network.

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