CN212909398U - Spray painting equipment - Google Patents
Spray painting equipment Download PDFInfo
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- CN212909398U CN212909398U CN202021755038.7U CN202021755038U CN212909398U CN 212909398 U CN212909398 U CN 212909398U CN 202021755038 U CN202021755038 U CN 202021755038U CN 212909398 U CN212909398 U CN 212909398U
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Abstract
A spray coater comprises a piston pump, a machine body, a control module and a motor, wherein the control module and the motor are electrically connected; the motor provides power for the piston pump; the control module is electrically connected with a pressure sensor for detecting the pressure of the piston pump; a starting pressure value, a target pressure value and a restarting pressure value are stored in the control module; when the pressure is smaller than or equal to the starting pressure value, the control module controls the rotating speed of the motor to rise to a preset first rotating speed, so that the pressure rises to the target pressure value; when the pressure is greater than or equal to the target pressure value, the control module controls the motor to stop rotating; when the pressure is reduced to be equal to or smaller than the restart pressure value from the target pressure value, the control module controls the rotating speed of the motor to be increased to a preset second rotating speed, so that the pressure is increased to the target pressure value, the spraying efficiency of the spraying machine is higher, the spraying is more uniform, and the spraying machine can be protected when a nozzle is blocked.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electric tool technical field relates to a spraying device especially.
[ background of the invention ]
Compared with manual spraying, the spraying machine has the advantages of high efficiency, good paint film quality and the like, the motor drives the piston in the piston pump to do stable and continuous reciprocating motion in the working process of the spraying machine, the sucked paint is pressurized, instantly atomized by the spray gun and then released to the surface of an object to be coated, the spraying machine can preferably spray the paint at constant pressure in order to ensure that the paint film is more uniform, however, part of the spraying machine cannot pressurize the piston pump in time when being continuously used, and the operation needs to be interrupted, so that the spraying is uneven and the spraying efficiency is low; on the other hand, when a user uses the coating machine, the gun mouth can be blocked, and the pressure value in the piston pump is increased along with the continuous operation of the motor due to the fact that the pressure is released to prevent the piston pump from being blocked, so that hidden danger is generated.
Accordingly, there is a need for a spray coating machine that overcomes the deficiencies of the prior art.
[ Utility model ] content
Not enough to prior art, the utility model aims to provide a flush coater, this flush coater spraying efficiency is more even of higher spraying, and can protect when the nozzle has the jam.
The utility model provides a technical scheme that prior art problem adopted is: the spraying machine comprises a piston pump, a machine body, a control module, a motor and a power supply module, wherein the control module and the motor are arranged in the machine body and electrically connected, and the power supply module is used for supplying power to the control module and the motor; the motor provides power for the piston pump, the piston pump is provided with a pressure sensor for detecting the pressure in the piston pump, and the pressure sensor outputs the pressure to the control module; the piston pump is connected with a nozzle for spraying; a starting pressure value, a target pressure value and a restarting pressure value which is greater than the starting pressure value and less than the target pressure value are stored in the control module; when the pressure is smaller than or equal to the starting pressure value, the control module controls the rotating speed of the motor to rise to a preset first rotating speed, and the first rotating speed is maintained until the pressure rises to the target pressure value; when the pressure is greater than or equal to the target pressure value, the control module controls the motor to stop rotating; when the pressure is reduced to be equal to or less than the restart pressure value, the control module controls the motor to restart, the rotating speed of the motor is increased to a preset second rotating speed, and the second rotating speed is maintained until the pressure is increased to the target pressure value.
Preferably, the control module is electrically connected with the driving module and controls the operation of the motor through the driving module, and the driving module comprises a driving unit and an inverter circuit; the control module outputs a driving signal to the driving unit to control the duty ratio of the inverter circuit, so that the motor runs at the first rotating speed or the second rotating speed at a constant speed.
Preferably, the motor comprises a stator and a rotor; the control module electric connection has the detection the current detection module of motor current, detects the voltage detection module of power module voltage and detection the rotor position detection module of rotor position, rotor position detection module includes back electromotive force detection circuitry or position sensor, control module passes through rotor position calculates the motor speed.
Preferably, the pressure sensor is electrically connected to a pressure signal differential amplification module, and the pressure signal differential amplification module amplifies the micro-electrical signal output by the pressure sensor and outputs the amplified micro-electrical signal to the control module; the control module is electrically connected with the speed regulator and the display, and the display displays the information of the spraying machine.
Preferably, the speed controller at least sets one of the first rotation speed, the second rotation speed, the target pressure value, the restart pressure value, and the start pressure value, and the display at least displays one of the motor current, the power supply module voltage, the motor rotation speed, the pressure, the first rotation speed, the second rotation speed, the target pressure value, the restart pressure value, and the start pressure value.
Preferably, the control module is internally stored with an alarm pressure value and is electrically connected with an alarm, the alarm pressure value is greater than the target pressure value, and when the pressure is greater than or equal to the alarm pressure value, the control module controls the alarm to give an alarm.
Preferably, the first rotational speed is greater than or equal to the second rotational speed.
Preferably, the motor stalling is set to brake the motor by using short-circuit braking, or the power supply module stops supplying power to the motor and runs by inertia.
Preferably, the control module comprises a first control module and a second control module, an isolation element is electrically connected between the first control module and the second control module, and information is transmitted between the first control module and the second control module through the isolation element; the power supply module comprises a first voltage transformation module for supplying power to the first control module and a second voltage transformation module for supplying power to the second control module; the motor is electrically connected to the first control module, the pressure sensor is electrically connected to the second control module, and the first control module controls the operation of the motor according to the pressure transmitted by the second control module.
Preferably, the isolation element is a magnetic isolation element or an optical coupling isolation element.
Compared with the prior art, the utility model discloses following beneficial effect has: the control module controls the motor to stop rotating when the pressure in the piston pump is less than the starting pressure value and the motor is controlled to operate at a first rotating speed to pressurize the piston pump, and when the pressure in the piston pump is greater than or equal to a target pressure value, the spraying can be carried out more uniformly, and along with the pressure in the piston pump which is sprayed by the nozzle being reduced to a restarting pressure value, the control module controls the motor to operate at a second rotating speed to continue pressurizing the piston pump until the pressure in the piston pump is increased to be greater than or equal to the target pressure value again, therefore, when the user continuously uses the spraying machine, the problem of low spraying efficiency caused by insufficient spraying pressure is avoided, and meanwhile, when the nozzle is blocked and the pressure is not released timely, and the pressure in the piston pump still continuously rises after reaching the target pressure value, the control module controls the motor to stop rotating and stop continuously pressurizing the piston pump, so that the spraying machine is protected.
[ description of the drawings ]
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
FIG. 1 is a block circuit diagram of one embodiment of the present applicator;
FIG. 2 is a schematic side view of one embodiment of the applicator.
The meaning of the reference symbols in the figures:
100. the device comprises a machine body 1, a first control module 11, a rectification circuit 12, a filter circuit 13, a first transformation module 14, an inverter circuit 15, a driving unit 16, a current detection module 17, a voltage detection module 2, a second control module 21, a speed regulator 22, a display 23, a second transformation module 3, a motor 31, a counter electromotive force detection circuit 32, a piston pump 33, a nozzle 34, a pressure sensor 35, a pressure signal differential amplification module 4 and an isolation element
[ detailed description ] embodiments
The present invention will be described in further detail with reference to the accompanying drawings and embodiments.
Fig. 1 and 2 show a spray coating machine according to an embodiment of the present invention, which includes a piston pump 32, a machine body 100, a control module disposed inside the machine body 100, a motor 3, and a power supply module for supplying power to the control module and the motor 3; the power supply module comprises a rectifying circuit 11, a filter circuit 12 and a voltage transformation module, wherein the rectifying circuit 11, the filter circuit 12 and the voltage transformation module are electrically connected, and the voltage transformation module is electrically connected with the output end of the filter circuit 12 and supplies power to the control module; the control module is electrically connected with a driving module and controls the motor 3 to operate through the driving module; the motor 3 provides power for the piston pump 32, the piston pump 32 is provided with a pressure sensor 34 for detecting the pressure in the piston pump 32, and the pressure sensor 34 outputs the pressure to the control module; the piston pump 32 is connected with a nozzle 33 for spraying; a starting pressure value, a target pressure value and a restarting pressure value which is greater than the starting pressure value and less than the target pressure value are stored in the control module; the control module controls the motor to operate according to the pressure, when the pressure is smaller than or equal to the starting pressure value, the control module controls the rotating speed of the motor 3 to rise to a preset first rotating speed, and the first rotating speed is maintained until the pressure rises to the target pressure value; when the pressure is greater than or equal to the target pressure value, the control module controls the motor 3 to stop rotating, the motor 3 stops rotating and is set to brake by using short-circuit braking, or the power supply module stops supplying power, and the motor 3 runs by means of inertia; when the pressure is reduced to be equal to or less than the restart pressure value, the control module controls the motor 3 to restart, the rotating speed of the motor 3 is increased to a preset second rotating speed, and the second rotating speed is maintained until the pressure is increased to the target pressure value; the first rotating speed is greater than or equal to the second rotating speed, and the service life of the motor 3 can be effectively prolonged by the constant-speed operation of the motor 3.
When the pressure is lower than a starting pressure value, the control module controls the motor 3 to rotate at the first rotating speed to pressurize the piston pump 32, when the pressure rises to be higher than or equal to the target pressure value, the control module controls the motor 3 to stop rotating, at the moment, the spraying by using the nozzle 33 can achieve the effect of more uniform spraying, as the pressure in the piston pump 32 drops to the restarting pressure value when the nozzle 33 sprays, the control module controls the motor 3 to rotate at the second rotating speed, the motor 3 continues to pressurize the piston pump 32 until the pressure reaches to be higher than or equal to the target pressure value again, the control module controls the motor 3 to continue to circulate the process, so that when a user continuously uses the spraying machine, the problem of low spraying efficiency caused by insufficient spraying pressure is avoided, and meanwhile, the nozzle 33 is blocked and is not relieved in time, when the pressure in the piston pump 32 continuously rises after reaching the target pressure value, the control module controls the motor 3 to stop rotating and stop continuously pressurizing the piston pump 32, so as to protect the coating machine.
As shown in fig. 1, in the present embodiment, the control module includes a first control module 1 and a second control module 2, an isolation element 4 is electrically connected between the first control module 1 and the second control module 2, and the isolation element 4 transmits information to each other, and the isolation element 4 is a magnetic isolation element or an optical coupling isolation element; the power supply module comprises a first voltage transformation module 13 for supplying power to the first control module 1 and a second voltage transformation module 23 for supplying power to the second control module 2; the first control module 1 is electrically connected with the driving module, and controls the operation of the motor 3 through the driving module, and the driving module comprises a driving unit 15 and an inverter circuit 14; the pressure sensor 34 is electrically connected to the second control module 2 and outputs the pressure to the second control module 2, and the first control module 1 controls the operation of the motor 3 according to the pressure transmitted by the second control module 2, and the control method is not described again. The first control module 1 outputs a driving signal to the driving unit 15 to control the duty ratio of the inverter circuit 14, so that the motor 3 operates at a constant speed at a first rotation speed or a second rotation speed, when the rotation speed of the motor 3 is greater than the first rotation speed or the second rotation speed, the first control module 1 controls the duty ratio of the inverter circuit 14 to decrease, and when the rotation speed of the motor 3 is less than the first rotation speed or the second rotation speed, the first control module 1 controls the duty ratio of the inverter circuit 14 to increase.
The motor 3 comprises a stator and a rotor; the first control module 1 is electrically connected with a current detection module 16 for detecting the current of the motor 3, the current detection module 16 is connected to a bus of the inverter circuit 14, and the current of the motor 3 is represented by detecting the bus current value of the inverter circuit 14; the first control module 1 is electrically connected with a voltage detection module 17 for detecting the voltage of the power supply module, the voltage detection module 17 is electrically connected with the output end of the filter circuit 12, and the voltage of the power supply module is represented by detecting the voltage at the output end of the filter circuit 12; the first control module 1 is electrically connected to a rotor position detection module for detecting the rotor position, in this embodiment, the rotor position detection module includes a back electromotive force detection circuit 31, but in other embodiments, the position detection module may also include a position sensor, such as a hall element, and the first control module 1 calculates the rotation speed of the motor 3 according to the rotor position; the first control module 1 transmits the current of the electric motor 3, the voltage of the supply module and the rotational speed of the electric motor 3 to the second control module 2 via the isolating element 4.
The pressure sensor 34 is electrically connected to a pressure signal differential amplification module 35, and the pressure signal differential amplification module 35 amplifies the micro-electrical signal output by the pressure sensor 34 and outputs the amplified micro-electrical signal to the second control module 2; the second control module 2 is electrically connected with a speed regulator 21 and a display 22 for displaying information of the coating machine; the speed controller 21 at least sets one of the first rotation speed, the second rotation speed, the target pressure value, the restart pressure value and the start pressure value, and the display 22 at least displays one of the current of the motor 3, the voltage of the power supply module, the rotation speed of the motor 3, the pressure, the first rotation speed, the second rotation speed, the target pressure value, the restart pressure value and the start pressure value.
The second control module 2 is internally stored with an alarm pressure value and is electrically connected with an alarm (not shown in the figure), the alarm pressure value is greater than the target pressure value, when the pressure is greater than or equal to the alarm pressure value, the second control module 2 controls the alarm to alarm, when the first control module 1 is abnormal, the operation of the motor 3 cannot be normally controlled, the pressure in the piston pump 32 cannot be controlled and continuously increases to exceed the target pressure value until the pressure is greater than or equal to the alarm pressure value, the second control module 2 controls the alarm to alarm, the alarm can be set as a warning lamp, when the pressure is greater than or equal to the alarm pressure value, the warning lamp is turned on or flickers, the alarm can also be set as an acoustic alarm, such as a buzzer, when the pressure is greater than or equal to the alarm pressure value, the buzzer gives out warning sound.
The present invention is not limited to the above-described embodiments. One of ordinary skill in the art will readily recognize that there are numerous alternatives to the disclosed applicator without departing from the spirit and scope of the present invention. The protection scope of the present invention is subject to the content of the claims.
Claims (10)
1. A spraying machine comprises a piston pump, a machine body, a control module, a motor and a power supply module, wherein the control module and the motor are arranged in the machine body and electrically connected, and the power supply module is used for supplying power to the control module and the motor; the motor provides power for the piston pump, the piston pump is provided with a pressure sensor for detecting the pressure in the piston pump, and the pressure sensor outputs the pressure to the control module; the piston pump is connected with a nozzle for spraying; the method is characterized in that: a starting pressure value, a target pressure value and a restarting pressure value which is greater than the starting pressure value and less than the target pressure value are stored in the control module; when the pressure is smaller than or equal to the starting pressure value, the control module controls the rotating speed of the motor to rise to a preset first rotating speed, and the first rotating speed is maintained until the pressure rises to the target pressure value; when the pressure is greater than or equal to the target pressure value, the control module controls the motor to stop rotating; when the pressure is reduced to be equal to or less than the restart pressure value, the control module controls the motor to restart, the rotating speed of the motor is increased to a preset second rotating speed, and the second rotating speed is maintained until the pressure is increased to the target pressure value.
2. The applicator of claim 1, wherein: the control module is electrically connected with the driving module and controls the operation of the motor through the driving module, and the driving module comprises a driving unit and an inverter circuit; the control module outputs a driving signal to the driving unit to control the duty ratio of the inverter circuit, so that the motor runs at the first rotating speed or the second rotating speed at a constant speed.
3. The applicator of claim 1, wherein: the motor comprises a stator and a rotor; the control module electric connection has the detection the current detection module of motor current, detects the voltage detection module of power module voltage and detection the rotor position detection module of rotor position, rotor position detection module includes back electromotive force detection circuitry or position sensor, control module passes through rotor position calculates the motor speed.
4. The applicator of claim 1, wherein: the pressure sensor is electrically connected with a pressure signal differential amplification module, and the pressure signal differential amplification module amplifies the micro-electrical signal output by the pressure sensor and outputs the amplified micro-electrical signal to the control module; the control module is electrically connected with the speed regulator and the display, and the display displays the information of the spraying machine.
5. The applicator of claim 4, wherein: the speed regulator is at least provided with one of the first rotating speed, the second rotating speed, the target pressure value, the restart pressure value and the start pressure value, and the display is at least used for displaying one of the motor current, the power supply module voltage, the motor rotating speed, the pressure, the first rotating speed, the second rotating speed, the target pressure value, the restart pressure value and the start pressure value.
6. The applicator of claim 1, wherein: the control module is internally stored with an alarm pressure value and is electrically connected with an alarm, the alarm pressure value is greater than the target pressure value, and when the pressure is greater than or equal to the alarm pressure value, the control module controls the alarm to give an alarm.
7. A spray applicator according to any one of claims 1 to 6, wherein: the first rotational speed is greater than or equal to the second rotational speed.
8. A spray applicator according to any one of claims 1 to 6, wherein: the motor stalling is set to be the motor braking by utilizing short-circuit braking, or the power supply module stops supplying power, and the motor runs by means of inertia.
9. The applicator of claim 1, wherein: the control module comprises a first control module and a second control module, an isolation element is electrically connected between the first control module and the second control module, and information is transmitted mutually through the isolation element; the power supply module comprises a first voltage transformation module for supplying power to the first control module and a second voltage transformation module for supplying power to the second control module; the motor is electrically connected to the first control module, the pressure sensor is electrically connected to the second control module, and the first control module controls the operation of the motor according to the pressure transmitted by the second control module.
10. The applicator of claim 9, wherein: the isolation element is set as a magnetic isolation element or an optical coupling isolation element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021755038.7U CN212909398U (en) | 2020-08-20 | 2020-08-20 | Spray painting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021755038.7U CN212909398U (en) | 2020-08-20 | 2020-08-20 | Spray painting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212909398U true CN212909398U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021755038.7U Active CN212909398U (en) | 2020-08-20 | 2020-08-20 | Spray painting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212909398U (en) |
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2020
- 2020-08-20 CN CN202021755038.7U patent/CN212909398U/en active Active
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