Intelligent spraying machine

Abstract

The present invention relates to the field of wall spraying equipment, and in particular to an intelligent spraying machine. Existing spraying machines cannot adjust the feeding state as the working conditions of the paint spray guns change, which affects the spraying effect. It is troublesome to readjust each time and it is difficult to achieve the same effect as the original. The present invention provides an intelligent spraying machine, including a base and a motor, a reducer and a horizontally placed material holding barrel arranged thereon. A mounting plate is fixed on the base and a control system for adjusting the automatic speed change of the motor is arranged thereon. Two groups of air supply pipelines are arranged on the mounting plate, and air flow sensors and control systems are arranged in both groups of air supply pipelines. The present invention determines the working conditions of the two paint spray guns connected to the sprayer by receiving the air flow interruption signal of the air supply pipeline, and adaptively adjusts the motor speed to adapt to the changes in the working conditions of the paint spray guns, so as to keep the spraying effect of each paint spray gun consistent with the pre-adjusted one, and facilitate the operation of the workers.

Description

Technical Field

[0001] The invention relates to the field of wall spraying equipment, in particular to an intelligent spraying machine, which can be connected to two paint spray guns to work simultaneously and automatically maintain a pre-adjusted spraying effect. Background Art

[0002] In order to improve the spraying efficiency and the uniformity of the sprayed surface, many wall paints are now applied with handheld paint spray guns. This type of paint spray gun needs to be connected to a spray machine when working. The spray machine includes a motor and a screw feeding pump driven by the motor and a storage bin for feeding materials to the screw feeding pump. When working, the feed end of the paint spray gun is connected to the discharge port of the screw feeding pump through a feeding pipe, and the air inlet end of the paint spray gun is connected to the air pump through an air pipe. During production, one spray machine can connect two paint spray guns at the same time. When two paint spray guns are connected to one spray machine at the same time, there are inconveniences in use. Since the spray machine feed cannot adjust the feed according to the opening and closing changes of the two paint spray guns, the spraying effect changes, affecting the wall painting. It is troublesome and laborious to readjust, and even after the adjustment, it is difficult to achieve the same spraying effect as before the change; specifically, when the original screw feed pump adjusts the feed according to the demand of the two paint spray guns working at the same time, when one of the paint spray guns is suddenly closed and stopped, the screw feed pump still feeds according to the original feed amount, and the feed of the remaining working paint spray gun suddenly increases, causing the spraying effect to change and affecting use; on the contrary, if the original feed is only according to the demand of one paint spray gun, when the other paint spray gun is suddenly turned on, the two paint spray guns share the feed of the previous paint spray gun, resulting in insufficient feed for the two paint spray guns, and the spraying effect is greatly affected. Summary of the invention

[0003] The technical problem to be solved and the technical task proposed by the present invention are to overcome the problems that the existing sprayer cannot adjust the feeding state as the working condition of the paint spray gun changes, affecting the spraying effect, and each readjustment is troublesome and difficult to achieve the same effect as the original. The present invention provides an intelligent sprayer, which can adjust the feeding state in real time according to the changes in the working condition of the paint spray gun, keep the feed of the paint spray gun stable and unchanged, thereby ensuring consistent spraying effect, facilitating workers' operation and ensuring the spraying effect.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an intelligent spraying machine, including a base and a motor, a reducer and a horizontally placed material holding barrel arranged thereon, wherein a screw pump and a feeding shaft connected to each other are arranged on the front and rear sides of the material holding barrel, and a feeding blade extending along the axial direction is arranged on the surface of the feeding shaft, and the front end of the feeding shaft is connected to the pump shaft end extending from the inlet side of the screw pump, and the rear end of the feeding shaft is sealed and extends out of the rear of the material holding barrel and is connected to the motor through the reducer, and a feeding port is arranged on the material holding barrel, and a discharge port corresponding to the outlet of the screw pump is opened at the front of the material holding barrel, wherein the material holding barrel is characterized in that A mounting plate is fixed on the base and a control system for adjusting the automatic speed change of the motor is arranged on the mounting plate, the control system includes a controller connected to the motor on the mounting plate and a speed adjustment button and a gear button electrically connected to the controller, the gear button includes an automatic gear and a stop gear, two groups of gas pipelines are arranged on the mounting plate, two ends of one group of gas pipelines are a first air inlet and a first air outlet arranged on the mounting plate, and two ends of the other group of gas pipelines are a second air inlet and a second air outlet arranged on the mounting plate, and airflow sensors are arranged in the two groups of gas pipelines and are electrically connected to the controller. The control system of the present invention adaptively adjusts the motor speed to adapt to changes in the working conditions of the docking paint spray guns, thereby keeping the spraying effect consistent with the pre-adjusted one. Specifically, the control system of the present invention monitors the transmission signal through two sets of air transmission channels, so that the controller can adjust the motor speed according to the real-time working conditions of the two paint spray guns, thereby changing the feeding state of the screw pump, and keeping the paint spray gun that is still working always maintains the same working condition as the paint spray gun that was originally adjusted, so that the spraying effect remains uniform. Workers do not need to readjust the motor speed every time the working condition of the paint spray gun changes. It is more convenient to use and can keep the spraying effect consistent with that adjusted each time.When working, the two air outlets are connected to the air supply interfaces of the two paint spray guns, and the two air inlets are connected to the air pump. The outlet can be connected to the two feeding pipes by installing a three-way valve to feed the two paint spray guns, and the controller and the motor are powered on. When in use, first operate the gear button to the automatic gear, and the sprayer is first connected to one paint spray gun. When only one paint spray gun is turned on to supply air, the air flow sensor in the corresponding air supply pipeline detects the air flow passing through and sends an air supply signal to the controller. The controller starts the motor to drive the screw pump to rotate to output the feed. Then the user rotates the speed control button according to the spraying requirements to make the motor speed meet the spraying requirements of one paint spray gun. The controller records the speed information, and the motor maintains a stable speed until the paint spray gun is closed. At this time, the air flow sensor in the corresponding air supply pipeline cannot detect the air flow passing through and sends a gas cut-off signal to the controller. The controller turns off the motor, and the motor enters the standby state. When the paint spray gun turns on the air supply again, the motor restarts to work at the preset speed. When the second paint spray gun is also connected to the sprayer, as long as the paint spray gun also turns on the air supply, the air flow sensor in the corresponding air supply pipeline detects the air flow and sends the air supply signal to the controller. If the controller receives and sends the air supply signal to both paint spray guns, the motor speed is doubled to make the current screw pump feed meet the needs of the two guns working at the same time. At this time, the feed of each gun corresponds to the feed reached by the preset motor speed, until the air supply pipeline of one spray gun cannot detect the air flow and send the air cut-off signal, and the motor speed is halved to restore to meet the feed demand of only one paint spray gun; when the spray machine stops, operate the gear button to the stop gear, and the motor and screw pump stop. The controller records and stores the adjusted motor speed information, and through programming, it can judge the actual working conditions of the two paint spray guns according to the air supply or air cut-off signal sent by the air flow sensor, and then automatically adjust the motor speed to adapt to the existing technology.

[0005] As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures: the outer surface of the mounting plate is provided with an indicator light and an emergency stop button connected to the controller. The indicator light and the emergency stop button are both connected to the controller, wherein the indicator light can display whether the sprayer is in working state or shutdown state by the color of the light; operating the emergency stop button can immediately send a signal to the controller, and in an emergency, the controller controls the motor to stop immediately, and the screw pump stops feeding.

[0006] The mounting plate is the side wall of the housing that covers the motor, and the housing surface is provided with ventilation holes that match the motor. The ventilation holes on the housing correspond to the motor inside the housing, and their function is to ventilate the motor covered inside the housing and keep the motor working stably.

[0007] The discharge port of the material container is connected to a quick connector, and a pressure relief valve is provided on the discharge port. Through the quick connector of the discharge port, a three-way connector can be easily installed to connect two feed pipes to two paint spray guns; the pressure relief valve can easily release the pressure in the pump when the feed pipe is disassembled.

[0008] The feeding port of the material storage barrel is connected to a feeding hopper. By connecting a feeding hopper to the feeding port, a large amount of paint is first stored in a sufficient volume of the feeding hopper and then gradually fed in as the screw pump works, so that it is convenient to add paint to the material storage barrel.

[0009] The base is provided with rollers at the front and rear of the base, so as to facilitate the movement of the spraying machine and flexibly change the use position according to the needs of the construction site.

[0010] The base is fixedly connected with a handle for pushing and pulling at one side of the corresponding discharge port. By pushing and pulling the coating machine with the handle, workers can move more easily and labor-savingly.

[0011] The intelligent sprayer described in the present invention can adjust the feeding state in real time according to the changes in the working conditions of the paint spray gun, keep the feeding of the paint spray gun stable and unchanged, thereby ensuring consistent spraying effect, facilitating workers' operation and ensuring the spraying effect; and when the sprayer detects that all paint spray guns are turned off, it will automatically shut down the motor and put the motor into standby state until a paint spray gun is reactivated, and the motor will rotate again. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 : Schematic diagram of the structure of the present invention.

[0013] Figure 2 : Schematic diagram of the control system structure of the present invention.

[0014] Figure 3 : Schematic diagram of the mounting plate on one side of the shell of the present invention.

[0015] In the figure: 1. screw pump, 2. motor, 3. base, 4. barrel, 5. controller, 6. speed control button, 7. gear button, 81. first air inlet, 82. first air outlet, 91. second air inlet, 92. second air outlet, 10. feeding shaft, 101. feeding paddle, 11. shell, 111. mounting plate, 12. indicator light, 13. emergency stop button, 14. air vent, 15. pressure relief valve, 16. hopper, 17. roller, 18. handle, 19. reducer, 20. pump shaft end, 21. paint spray gun, 22. air pipe, 23. feeding pipe, 24. air flow sensor, 25. quick connector. DETAILED DESCRIPTION

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

[0017] like Figures 1 to 3As shown, an intelligent spraying machine includes a base 3 and a motor 2, a reducer 19 and a horizontally placed material holding barrel 4 arranged thereon, wherein the material holding barrel 4 is provided with a screw pump 1 and a feeding shaft 10 which are connected to each other on the front and rear sides, and a feeding blade 101 extending axially is provided on the surface of the feeding shaft 10, and the front end of the feeding shaft 10 is connected to the pump shaft end 20 extending from the inlet side of the screw pump 1, and the rear end of the feeding shaft 10 is sealed and extends out of the rear part of the material holding barrel 4 through the reducer 19 to connect to the motor 2, a feed port is provided on the material holding barrel 4, a discharge port corresponding to the outlet of the screw pump 1 is opened at the front of the material holding barrel 4, the discharge port is connected to a quick connector 25, a pressure relief valve 15 is also provided on the discharge port, a hopper 16 is connected to the feed port of the material holding barrel 4, rollers 17 are provided at the front and rear of the base 3, and a handle 18 for pushing and pulling is fixedly connected to the base 3 on the side corresponding to the discharge port; the base 3 is provided with a handle 18 for pushing and pulling on the outer cover of the motor 2 A shell 11 is provided with air vents 14 matching the motor 2 on its surface, a side wall of one side of the shell 11 serves as a mounting plate 111, a control system for adjusting the automatic speed change of the motor 2 is arranged on the mounting plate, the control system comprises a controller 5 connected to the motor 2 on the mounting plate 111, and a speed regulating button 6 and a gear button 7 electrically connected to the controller 5, the gear button 7 comprises an automatic gear and a stop gear, two groups of air pipelines are arranged on the mounting plate 111, one group of air pipelines has two ends of a first air inlet 81 and a first air outlet 82 arranged on the mounting plate 111, and the other group of air pipelines has two ends of a second air inlet 91 and a second air outlet 92 arranged on the mounting plate 111, and air flow sensors 24 are arranged in both groups of air pipelines and are electrically connected to the controller 5, an indicator light 12 and an emergency stop button 13 connected to the controller 5 are arranged on the outer surface of the mounting plate 111.

[0018] When working Figure 2As shown, the first air outlet 82 and the second air outlet 92 on the shell are each connected to an air supply pipe 22 to supply air to the two paint spray guns 21, the first air inlet 81 and the second air inlet 91 are connected to the air pump, and the quick connector 25 of the outlet can be connected to the two feeding pipes 23 by quickly connecting a three-way connector to supply the two paint spray guns 21 at the same time. Power on the controller and the motor. When in use, operate the gear button to the automatic gear first. The sprayer is connected to a paint spray gun first. When only one paint spray gun starts to supply air, the air flow sensor in the corresponding air supply pipeline detects the air flow and sends an air supply signal to the controller. The controller starts the motor to drive the screw pump to rotate to output the feed. Then the worker rotates the speed control button according to the on-site spraying needs to make the motor speed meet the spraying needs of a paint spray gun. The controller records the speed information, and the motor maintains a stable speed until the paint spray gun is turned off. At this time, the air flow sensor in the corresponding air supply pipeline cannot detect the air flow and sends an air cut-off signal to the controller. The controller shuts down the motor and the motor enters standby mode. When the paint spray gun starts to supply air again, the motor restarts to the preset speed. When the second paint spray gun is also connected to the sprayer, as long as the paint The spray gun also starts to supply air, and the air flow sensor in the corresponding air supply pipeline detects the air flow and sends an air supply signal to the controller. If the controller receives and sends air supply signals to both paint spray guns, the motor speed will be doubled to make the current screw pump feeding amount meet the needs of the two guns working at the same time. At this time, the feeding of each gun corresponds to the feeding amount reached by the previously preset motor speed, until the air supply pipeline of one spray gun cannot detect the air flow and sends a gas cut-off signal, the motor speed is halved and restored to only meet the feeding needs of one paint spray gun; when the spray machine is stopped, operate the gear button to the stop gear, and the motor and screw pump will stop; the indicator light can show whether the spray machine is in working state or shutdown state by the color of the light, and operating the emergency stop button can immediately send a signal to the controller. In an emergency, the controller controls the motor to stop immediately and the screw pump stops feeding.

Claims

1. An intelligent spraying machine, comprising a base (3) and a motor (2), a reducer (19) and a horizontally placed material holding barrel (4) arranged thereon, wherein a screw pump (1) and a feeding shaft (10) are arranged on the front and rear sides of the material holding barrel (4), and a feeding blade (101) extending in the axial direction is arranged on the surface of the feeding shaft (10), and the front end of the feeding shaft (10) is connected to the pump shaft end (20) extending from the inlet side of the screw pump (1), and the rear end of the feeding shaft (10) is sealed and extends out of the rear part of the material holding barrel (4) through the reducer (19) to connect to the motor (2), and a feed inlet is arranged on the material holding barrel (4), and a discharge outlet corresponding to the outlet of the screw pump (1) is opened at the front of the material holding barrel (4), wherein the material holding barrel (4) is characterized in that A mounting plate (111) is fixed on the base (3) and a control system for adjusting the automatic speed change of the motor (2) is arranged on the mounting plate. The control system comprises a controller (5) connected to the motor (2) on the mounting plate (111) and a speed adjustment button (6) and a gear button (7) electrically connected to the controller (5). The gear button (7) comprises an automatic gear and a stop gear. Two groups of gas pipelines are arranged on the mounting plate (111). Two ends of one group of gas pipelines are a first gas inlet (81) and a first gas outlet (82) arranged on the mounting plate (111). Two ends of the other group of gas pipelines are a second gas inlet (91) and a second gas outlet (92) arranged on the mounting plate (111). Airflow sensors (24) are arranged in both groups of gas pipelines and are electrically connected to the controller (5). An indicator light (12) and an emergency stop button (13) connected to the controller (5) are provided on the outer surface of the mounting plate (111); The mounting plate (111) is a side wall of a housing (11) covering the outside of the motor (2); a vent hole (14) matching the motor (2) is provided on the surface of the housing (11); The discharge port of the material holding barrel (4) is connected to a quick connector (25), and a pressure relief valve (15) is provided on the discharge port; The feeding port of the material containing cylinder (4) is connected to a feeding hopper (16); The base (3) is provided with rollers (17) at the front and rear; The base (3) is fixedly connected to a handle (18) for pushing and pulling at a side corresponding to the discharge port.

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