Automatic spray flow detection control method and system

Abstract

The present invention discloses an automatic spray flow detection control method and system, the system consists of: a flow detection sensor, an automatic spray device, a detection device, and a control device; the main steps of the system include: 1) installing the flow detection sensor on the spray pipeline; 2) when the automatic spray device is working, the flow detection sensor collects flow data in real time and transmits it to the detection device; 3) the detection device determines whether the current flow data is normal, and transmits the detection result to the control device; 4) the control device gives a control action according to the detection result; the advantage of the present invention is that the quality of spraying is guaranteed by detecting the flow in real time when the automatic spray system is working.

Description

Technical Field

[0001] This patent belongs to the field of intelligent manufacturing and robotics. Background Art

[0002] In the application scenarios of high-precision automatic spraying in intelligent manufacturing, such as integrated circuit packaging, PCB circuit board welding dispensing, shoe sole and upper spraying, etc., since the glue valve is exposed to the air, the spray material on it will solidify during the production interval. The main problem currently faced is the uneven spraying caused by the blockage of the glue valve or the failure to spray to the correct position as required, which causes serious quality problems. Summary of the invention

[0003] In order to solve the serious quality problems caused by valve blockage caused by spraying materials in the field of high-precision automatic spraying, the present invention discloses an automatic spraying flow detection control method and system, the system consists of: flow detection sensor, automatic spraying device, detection device, control device; the main steps of the system include: 1) installing the flow detection sensor on the spraying pipeline; 2) when the automatic spraying device is working, the flow detection sensor collects flow data in real time and transmits it to the detection device; 3) the detection device determines whether the current flow data is normal, and transmits the detection result to the control device; 4) the control device gives a control action according to the detection result. The advantages of this patent are very obvious. In the production scenario of robot automatic spraying or dispensing, the present invention can be used to detect whether the glue path is blocked in real time, and the measurement accuracy can reach 0.2ml / second, thereby ensuring the quality of automatic spraying and reducing costs. It can be applied to high-precision spraying fields such as integrated circuit packaging, gluing of soles and uppers in the footwear and clothing industry, and PCB welding, dispensing and assembly of electronic equipment.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] The patented system comprises: a flow detection sensor, an automatic spraying device, a detection device, and a control device, wherein the flow detection sensor is deployed on the spraying pipeline of the automatic spraying device, the collected data of the flow sensor is connected to the detection device through a signal line, and the flow threshold value for normal operation is set in advance in the detection device, the flow detection sensor collects the current flow value, the detection device compares the current flow value with the threshold value to form a detection result, the detection device and the control device are connected through a network or an IO line, and the control device makes a judgment after receiving the detection result. If the detection result is higher or lower than the threshold value, the control device can perform the following control actions: 1) Start an alarm to prompt manual intervention; 2) Increase or decrease the flow rate.

[0006] The flow rate detection sensor is disposed on the spraying pipeline, and can be a non-contact sensor or a contact sensor with respect to the spraying liquid pattern to be detected.

[0007] The control action may further include adjusting the flow rate of the liquid in the spraying pipeline by controlling the pressure of the automatic spraying device; preferably, controlling the movement spraying speed of the automatic spraying device, and the working body of the automatic spraying device may be a robot.

[0008] The control device is a computer device that receives the detection results and controls the automatic spraying device. Preferably, the control device is a PLC.

[0009] The automatic spraying device comprises: 1) a spraying tool; 2) a pressure barrel capable of online adjusting the pressure to store the spraying liquid; 3) a spraying pipeline connecting the spraying tool and the pressure barrel; 4) a robot, the end joint of which is connected to the spraying tool, preferably, the spraying tool is a glue valve; preferably, the spraying tool is a brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Schematic diagram of the working principle of this patent DETAILED DESCRIPTION

[0011] Attached Figure 1 Schematic diagram of the working principle of this patent

[0012] 101. The flow detection sensor collects flow data in real time. The flow detection sensor is deployed on the spraying pipeline of the automatic spraying device to collect the flow data of the spraying liquid in the pipeline in real time;

[0013] 102. The detection device detects real-time flow data, and the detection device receives the flow data collected by the sensor in real time;

[0014] 103. The detection device determines whether the flow data is normal compared with the preset threshold value. If it is not normal, go to 104. If it is normal, go to 101;

[0015] 104. The control device starts the control action, alarms, and controls the automatic spraying device to increase or decrease the flow rate;

[0016] The first embodiment of the present invention

[0017] This embodiment implements an intelligent spraying robot for soles and uppers. In this embodiment, a flow detection sensor uses a non-contact ultrasonic sensor, and the flow detection sensor is fixed on the outer wall of the glue spraying pipe. When an abnormal flow is detected, an alarm is issued to request manual intervention. The accuracy of this embodiment for abnormal detection such as glue valve blockage reaches more than 99.9%, which can effectively ensure the quality of automatic spraying.

[0018] The second embodiment of the present invention

[0019] This embodiment is an electronic device PCB dispensing system. The flow detection sensor uses a non-contact high-precision ultrasonic sensor. When an abnormal flow is detected, the control device can notify the automatic spraying device to increase or decrease the flow, thereby improving the quality of the product.

Claims

1. An automatic spraying flow detection control method and system, the system consists of: a flow detection sensor, an automatic spraying device, a detection device, and a control device; The main steps of the system include: 1) installing the flow detection sensor on the spray pipe; 2) when the automatic spray device is working, the flow detection sensor collects flow data in real time and transmits it to the detection device; 3) the detection device determines whether the current flow data is normal and transmits the detection result to the control device; 4) the control device gives a control action based on the detection result.

2. The system according to claim 1, characterized in that The process of generating the test results and the control device giving the control action according to the test results includes the following steps: Step 1: Set the flow threshold value for normal operation in the detection device in advance; Step 2: The flow detection sensor collects the current flow value, and the detection device compares the current flow value with the threshold value to form a detection result and sends it to the control device; Step 3: If the detection result is lower than the threshold, the control device alarms and increases the flow rate, and then goes to step 2. If the detection result is higher than the threshold, the control device alarms and reduces the flow rate, and then goes to step 2.

3. The system according to claim 1, characterized in that The flow detection sensor refers to a sensor that collects the flow value of the liquid in the spray pipeline, and the collection method includes at least: 1) non-contact sensor; 2) contact sensor.

4. The system according to claim 1 and claim 2, characterized in that The control actions at least include: 1) adjusting the flow rate of the liquid in the spraying pipeline by controlling the pressure of the automatic spraying device; 2) alarming to notify manual intervention; 3) controlling the movement spraying speed of the automatic spraying device.

5. The system according to claim 2 and claim 3, characterized in that The control device is a computer device that receives the detection results and controls the automatic spraying device, and at least includes: 1) PLC; 2) computer.

6. The system according to claim 1, characterized in that The automatic spraying device is composed of at least: 1) a spraying tool; 2) a pressure barrel with online adjustable pressure for storing the spraying liquid; 3) a spraying pipeline connecting the spraying tool and the pressure barrel; 4) a robot, whose end joint laces the spraying tool.

7. The system according to claim 6, characterized in that The spraying tool at least includes: 1) a glue valve; 2) a brush.

Images