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CN-115889025-B - Spraying metering proportioning device and control system thereof

CN115889025BCN 115889025 BCN115889025 BCN 115889025BCN-115889025-B

Abstract

The invention discloses a spraying metering proportioning device and a control system thereof, wherein the spraying metering proportioning device comprises a metering device, a mixer and a controller, the metering device is provided with at least two groups, each group of metering device comprises a driving motor, a liquid supply pipeline, a liquid outlet pipeline and two groups of metering mechanisms, the driving motor is respectively connected with the two groups of metering mechanisms in a transmission way so as to drive the two groups of metering mechanisms to act simultaneously, the driving motor and the metering mechanisms are electrically connected with the controller, two ends of the liquid supply pipeline are respectively communicated with the input ends of the two groups of metering mechanisms, the liquid supply pipeline is provided with a liquid inlet, two ends of the liquid outlet pipeline are respectively communicated with the output ends of the two groups of metering mechanisms, the liquid outlet pipeline is provided with a liquid outlet, the mixer comprises a mixing chamber, the mixing chamber is provided with at least two material inlet channels, the material inlet channels are correspondingly communicated with the liquid outlet, and the mixing chamber is provided with a mixed liquid outlet. The invention has the advantages of high metering precision, capability of reducing spraying cost, multiple functions, good cleaning effect and high intelligent degree.

Inventors

  • CHEN FENG
  • LI ZONGQIANG
  • CHEN DALI

Assignees

  • 深圳市泰达机器人有限公司

Dates

Publication Date
20260505
Application Date
20221115

Claims (10)

  1. 1. The spraying metering proportioning device is characterized by comprising at least two groups of meters, a mixer and a controller, wherein each group of meters comprises a driving motor, a liquid supply pipeline, a liquid outlet pipeline and two groups of metering mechanisms, the driving motor is respectively connected with the two groups of metering mechanisms in a transmission way so as to drive the two groups of metering mechanisms to act simultaneously, the driving motor and the metering mechanisms are electrically connected with the controller, two ends of the liquid supply pipeline are respectively communicated with the input ends of the two groups of metering mechanisms, the liquid supply pipeline is provided with a liquid inlet, two ends of the liquid outlet pipeline are respectively communicated with the output ends of the two groups of metering mechanisms, and the liquid outlet pipeline is provided with a liquid outlet; the mixer comprises a mixing chamber, at least two feeding channels are arranged on the mixing chamber, the feeding channels are communicated with the liquid outlets in one-to-one correspondence, and a mixed liquid outlet is formed in the mixing chamber.
  2. 2. The spraying metering proportioning device of claim 1, wherein each metering mechanism comprises a mounting frame, a screw rod and a piston rod, a piston cylinder is arranged on the mounting frame, the driving motor is arranged on the mounting frame, one end of the screw rod is rotationally connected to the mounting frame, the other end of the screw rod is fixedly connected with an output shaft of the driving motor, a screw rod nut is screwed on the screw rod, the screw rod nut is connected with one end of the piston rod, the other end of the piston rod extends into the piston cylinder and is connected with a piston, and the piston is in sliding and sealing fit with an inner cavity of the piston cylinder; The piston cylinder is provided with an inlet and an outlet, the inlet and the outlet are correspondingly connected with a first control valve and a second control valve, the first control valve is communicated with the liquid supply pipeline, and the second control valve is communicated with the liquid outlet pipeline.
  3. 3. The metering and proportioning device for spraying according to claim 1, wherein the liquid inlet is correspondingly connected with a color changing valve group, the color changing valve group is provided with at least two input ports, and the input port of each color changing valve group is correspondingly communicated with a charging basket.
  4. 4. The spray coating metering proportioning device of claim 3, wherein a pulsation damper is connected between the liquid outlet and the feed channel, the pulsation damper comprises a pressure sensor for monitoring fluid pressure, and the pressure sensor is electrically connected with the controller.
  5. 5. The spraying metering proportioning device of claim 4, wherein the pulsation damper further comprises a valve seat and a valve cover, a diaphragm is arranged between the valve seat and the valve cover in a pressing mode, a valve cavity is enclosed by the valve seat and the diaphragm, an inlet, an interface, a detection port and a sampling port which are communicated with the valve cavity are formed in the valve seat, the pressure sensor is connected to the detection port, the detection end of the pressure sensor stretches into the valve cavity, the sampling port is connected with a sampling valve, the sampling valve is used for opening and closing the sampling port, an elastic piece is arranged between the valve cover and the diaphragm in a propping mode, and an adjusting mechanism is arranged on the valve cover and used for adjusting the deformation quantity of the elastic piece.
  6. 6. The spray coating metering proportioning device of claim 4, wherein a return valve group is arranged between the pulsation damper and the mixer, and the return valve group is communicated with the recovery container.
  7. 7. The spray coating metering proportioning device of claim 6, wherein the mixer further comprises at least two switch valve groups, the output ports of the switch valve groups are communicated with the feeding channel in a one-to-one correspondence manner, the switch valve groups are communicated with an air source, and the color changing valve groups and the reflux valve groups are respectively communicated with the switch valve groups in a correspondence manner so as to form a fluid loop.
  8. 8. The control system of the spraying metering proportioning device of any one of claims 1 to 7, wherein the control system comprises a driving module, an operation button and a display module which are respectively and electrically connected with the controller; The controller outputs and sends control information to the driving module, the driving module receives and drives the driving motor to work according to the control information, the driving module is electrically connected with the driving motor, the driving module collects state information of the driving motor and feeds back the state information to the controller, and the controller compares the state information according to the control information so as to correct the working state of the driving motor in real time; And the controller calculates the flow output in real time according to the state information and displays the flow through the display module.
  9. 9. The control system of claim 8, wherein the display module further presents operating conditions of the mixer, the color valve block, the return valve block, the pressure sensor, and the switch valve block.
  10. 10. The control system of claim 8, wherein the controller is electrically connected with a monitoring module, the monitoring module comprises a liquid level sensor, a temperature sensor and a flowmeter, the liquid level sensor is used for monitoring the liquid level state of the charging basket, and the temperature sensor is used for monitoring the temperature state of the charging basket and/or the fluid circuit.

Description

Spraying metering proportioning device and control system thereof Technical Field The invention relates to the technical field of spraying, in particular to a spraying metering proportioning device and a control system thereof. Background In the spraying process, two or more components are prepared and mixed in a certain proportion in advance to prepare the sprayed paint. At present, raw materials are mainly conveyed to a spray gun through a metering pump, and although the output fluid can be metered, the metering accuracy is low, the error range is large, the waste of the raw materials is easy to cause, and the spraying cost is high. Furthermore, because the cleaning operation is needed after each spraying processing is finished, the pipeline is prevented from being blocked due to the solidification of paint, but the current device for mixing and stirring is complex in structure, relatively troublesome in cleaning, poor in cleaning effect, and time and labor are wasted due to the need of repeated cleaning. Secondly, the existing equipment also has the problems of single function, low intelligent degree, troublesome operation and the like. Therefore, there is a need to solve the above problems. Disclosure of Invention The invention aims to solve the problems and provide a spraying metering proportioning device and a control system thereof. The spraying metering proportioning device comprises a metering device, a mixer and a controller, wherein the metering device is provided with at least two groups, each group of metering device comprises a driving motor, a liquid supply pipeline, a liquid outlet pipeline and two groups of metering mechanisms, the driving motor is respectively connected with the two groups of metering mechanisms in a transmission mode so as to drive the two groups of metering mechanisms to act simultaneously, the driving motor and the metering mechanisms are electrically connected with the controller, two ends of the liquid supply pipeline are respectively communicated with the input ends of the two groups of metering mechanisms, the liquid supply pipeline is provided with a liquid inlet, two ends of the liquid outlet pipeline are respectively communicated with the output ends of the two groups of metering mechanisms, the liquid outlet pipeline is provided with a liquid outlet, the mixer comprises a mixing chamber, at least two material inlet channels are arranged on the mixing chamber, the material inlet channels are correspondingly communicated with the liquid outlet one by one, and the mixing chamber is provided with a liquid mixing outlet. Further, each metering mechanism comprises a mounting frame, a screw rod and a piston rod, a piston cylinder is arranged on the mounting frame, a driving motor is arranged on the mounting frame, one end of the screw rod is rotationally connected to the mounting frame, the other end of the screw rod is fixedly connected with an output shaft of the driving motor, the screw rod is connected with a screw rod nut in a screwed mode, the screw rod nut is connected with one end of the piston rod, the other end of the piston rod extends into the piston cylinder and is connected with a piston, the piston is in sliding and sealing fit with an inner cavity of the piston cylinder, an inlet and an outlet are formed in the piston cylinder, the inlet and the outlet are correspondingly connected with a first control valve and a second control valve, the first control valve is communicated with a liquid supply pipeline, the second control valve is communicated with the liquid supply pipeline, under the cooperation of the screw rod and the screw rod nut, the rotation action of the driving motor is converted into linear action along an axis, the tooth distance of the screw rod is a known number, the number of turns of the driving motor can be controlled, the accurate distance of the piston running can be obtained, the relative accuracy of the piston is also known, and the relative accuracy of the metering cylinder flow can be achieved. Furthermore, the liquid inlet is correspondingly connected with the color changing valve group, the color changing valve group is at least provided with two input ports, each input port of the color changing valve group is correspondingly communicated with a charging basket, and more different raw materials can be input by controlling the opening and closing of the input ports of the color changing valve group, so that various paints can be proportioned, the proportioning and mixing are convenient, the application range is wider, and the operation is convenient. Furthermore, a pulsation damper is connected between the liquid outlet and the feeding channel, the pulsation damper comprises a pressure sensor for monitoring the pressure of fluid, the pressure sensor is electrically connected with the controller, the pressure stability of the fluid is ensured, errors caused by pulsation are avoided, and the metering precision is improved. Furth