Multifunctional glue valve control system and control device

Abstract

The application discloses a multifunctional glue valve control system and a control device, relates to the technical field of glue valve control, and the control device comprises a controller main body for mounting the multifunctional glue valve control system, an operation touch screen is mounted on one side of the controller main body, a fluid pressure adjusting switch is arranged on the same side of the operation touch screen, a screw valve test switch, a high-frequency point glue valve test switch and a pneumatic valve test switch are arranged directly below the operation touch screen, a signal receiving terminal is arranged on the opposite side of the controller main body, a heat dissipation fan is mounted below the signal receiving terminal, and the fluid pressure adjusting switch is connected to a positive pressure to negative pressure module and a pressure boosting gas storage tank through a pipeline and a high-frequency electromagnetic valve in sequence. The application is suitable for adapting various valve bodies through one valve body controller, solves the problem of adapting a special valve body controller, saves the purchase cost, highly integrates various valve bodies, is small in size, beautiful in appearance, more intelligent, convenient to carry, and unique in internal program and overall design.

Description

Technical Field

[0001] This invention relates to the field of glue valve control technology, specifically to a multifunctional glue valve control system and control device. Background Technology

[0002] Current dispensing valves in the industry are single-configuration and cannot be used with multiple types of dispensing valves. If different dispensing valves are replaced, the corresponding controllers must be replaced. If the commonly used dispensing valves, atomizing valves, screw valves, and high-frequency dispensing valves in the industry can be highly integrated, and a single controller can be used with multiple valve bodies, and effective control can be achieved by changing the corresponding valve body mode, then the problem of having to change the corresponding valve body controller multiple times in the industry can be solved, which will greatly shorten the accuracy of dispensing operations and improve disassembly and assembly efficiency.

[0003] Currently, the adaptability of dispensing valves on the market is narrow. One type of dispensing valve can only be used with one type of dispensing equipment. Different sizes and specifications of dispensing valves need to be constantly changed to adapt to dispensing operations on different dispensing equipment. For example, a multi-way dispensing valve controller disclosed in patent announcement number CN223819029U is used to control multiple dispensing valves. The multi-way dispensing valve controller includes: multiple valve body control connection ports, each valve body control connection port is connected to the corresponding dispensing valve; dispensing air inlet; air tank, connected to the dispensing air inlet; multiple dispensing air pressure output ports, connected to the air tank, each dispensing air pressure output port is used to deliver gas to the corresponding dispensing valve; signal exchange interface, including multiple first holes, each dispensing valve corresponds to one of the first holes; communication connection port, including multiple second holes, each dispensing valve corresponds to one of the second holes; and multiple control modules, each control module is used to control the corresponding dispensing valve. The multi-way dispensing valve controller of this solution can control multiple dispensing valves simultaneously and can also control each dispensing valve independently. The controller valve body in this solution has multiple output positions available, but it cannot be adapted to different models and types of valve bodies, nor can it control different models and types of valve bodies in real time. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional glue valve control system and control device to solve the problem mentioned in the background art that a single controller cannot adapt to multiple different types of valve bodies.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The multi-functional glue valve control system includes a core control module including a main control circuit module; an air source processing module including a signal receiving terminal and a screw valve test switch, a high-frequency glue dispensing valve test switch, a pneumatic valve test switch, as well as a high-frequency solenoid valve and a positive pressure to negative pressure module; The main control circuit module integrates an STM32 motor driver board and supports RS485 communication. It can be linked with the touch screen. One RS485 channel in the main control circuit module communicates with the touch screen to realize page parameter setting and status display. The other RS485 channel communicates with the STM32 motor driver board to realize the linkage of screw valve speed, direction, start / stop and alarm at the screw valve test switch.

[0006] Furthermore, the STM32 motor driver board acquires external signals through an input conditioning circuit, and then the program performs mode judgment and cycle control.

[0007] Furthermore, during the initialization of the touchscreen, valve type, operating mode, speed, cycle, pressure threshold, and alarm parameters are written.

[0008] Furthermore, the valve types correspond to the control processes of pulse valves, screw valves, and water curtain valves, respectively.

[0009] Furthermore, in screw valve mode, the STM32 motor driver board sends start / stop, direction, speed, acceleration / deceleration, and microstepping parameters to the motor control module via the touchscreen. During execution, pressure, alarm status, and motor feedback values ​​are collected simultaneously and transmitted back to the touchscreen page in real time.

[0010] Furthermore, during the alarm state, the alarm code is transmitted back to the touchscreen via RS485 and displayed on the corresponding page. After the alarm state is cleared, a reset operation needs to be performed according to permissions before restarting is allowed.

[0011] Furthermore, the core control module includes: the highest execution layer application layer: mode management, valve type management, recipe parameter management, automatic cycle control, alarm logic, HMI protocol processing, and motor control board status management; the data flow to the drive layer: RS485 communication driver, valve output driver, STM32 motor driver board protocol driver, analog signal sampling, and alarm output driver; and the lowest BSP layer: clock, GPIO, serial port, timer, watchdog, ADC, and EEPROM.

[0012] Furthermore, the gas source processing module includes a gas source storage and processing unit. It stores the gas input through the screw valve test switch, high-frequency dispensing valve test switch, pneumatic valve test switch, and signal receiving terminal, combined with GPIO input, switch input acquisition, and ADC1 analog sampling technology. The processing unit compares the Flash parameter area between the high-frequency solenoid valve and the positive pressure to negative pressure module with the formula parameter database, and then outputs the result to one of the three types of valves for execution.

[0013] This invention also proposes a multi-functional glue valve control device. The multi-functional glue valve control system further includes a controller body for mounting the multi-functional glue valve control system. An operation touch screen is installed on one side of the controller body. A fluid pressure regulating switch is provided on the same side of the operation touch screen. A screw valve test switch, a high-frequency dispensing valve test switch, and a pneumatic valve test switch are located directly below the operation touch screen. A signal receiving terminal is located on the opposite side of the controller body. A cooling fan is installed below the signal receiving terminal. The fluid pressure regulating switch is connected to a high-frequency solenoid valve via a pipe and then connected to a positive pressure to negative pressure module and a pressurized air tank, respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. By adapting multiple valve bodies to a single valve body controller, the problem of valve body compatibility with dedicated valve body controllers is effectively solved, reducing procurement costs by 30%-50%. It highly integrates multiple valve bodies, is compact and aesthetically pleasing, more intelligent, and easy to carry. Its internal program and overall design are unique in the industry, representing a significant reform, innovation, and progress.

[0015] 2. To address the issues of large size and high procurement costs, the system was streamlined and integrated using space-efficient methods, significantly reducing its original size. Through a rational layout and quick-connect assembly, assembly time was greatly shortened, improving cost-effectiveness.

[0016] 3. The main control circuit module's self-developed motor main control board utilizes an STM32 motor driver board, supports RS485 communication, integrates the control of various valve bodies, and uses optocoupler isolation to protect low-voltage circuits. It provides stable control and operational protection for various circuits and voltages, making the entire control system highly compatible and multifunctional. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 4 This is a schematic diagram of the connection structure of the high-frequency solenoid valve of the present invention; Figure 5 This is a three-dimensional structural diagram of the positive pressure to negative pressure module of the present invention; Figure 6 This is a logic block diagram of the control system of the present invention; Figure 7 This is a circuit diagram of the STM32 motor driver board of the present invention; Figure 8This is a schematic diagram of the data flow and calling relationship of the core control module of this invention.

[0018] In the diagram: 1. Controller body; 2. Touch screen; 3. Fluid pressure regulating switch; 4. Screw valve test switch; 5. High-frequency dispensing valve test switch; 6. Pneumatic valve test switch; 7. Signal receiving terminal; 8. Cooling fan; 9. Output air pressure quick connector; 10. Power conversion module; 11. Main control circuit module; 12. High-frequency solenoid valve; 13. Positive pressure to negative pressure module; 14. Pressurized air tank. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 6-7 As shown, the multifunctional glue valve control system of the present invention includes a core control module and an air source processing module. The core control module includes a main control circuit module 11; the air source processing module includes a signal receiving terminal 7, a screw valve test switch 4, a high-frequency glue dispensing valve test switch 5, a pneumatic valve test switch 6, a high-frequency solenoid valve 12, and a positive pressure to negative pressure module 13. The main control circuit module 11 integrates an STM32 motor driver board and supports RS485 communication. It can be linked with the operation touch screen 2. One RS485 channel in the main control circuit module 11 communicates with the operation touch screen 2 to realize page parameter setting and status display. The other RS485 channel communicates with the STM32 motor driver board to realize the linkage of speed, direction, start / stop and alarm of the screw valve connected to the screw valve test switch 4. like Figures 1-5 As shown, the multi-functional glue valve control device, using the aforementioned multi-functional glue valve control system, also includes a controller body 1 for mounting the multi-functional glue valve control system. An operation touch screen 2 is installed on one side of the controller body 1. A fluid pressure regulating switch 3 is provided on the same side as the operation touch screen 2. A screw valve test switch 4, a high-frequency dispensing valve test switch 5, and a pneumatic valve test switch 6 are located directly below the operation touch screen 2. A signal receiving terminal 7 is located on the opposite side of the controller body 1. A cooling fan 8 is installed below the signal receiving terminal 7. The fluid pressure regulating switch 3 is connected to a high-frequency solenoid valve 12 via a pipe and then connected to a positive pressure to negative pressure module 13 and a pressurized air tank 14, respectively.

[0021] Figure 7As shown in the figure, the main control circuit module 11 integrates a self-developed STM32 motor driver board and supports RS485 communication, and can be linked with the operation touch screen 2. One RS485 channel in the main control circuit module 11 communicates with the operation touch screen 2 to realize page parameter setting and status display. Another RS485 channel communicates with the self-developed STM32 motor driver board to realize the linkage of screw valve speed, direction, start / stop and alarm with the screw valve connected to the screw valve test switch 4.

[0022] The STM32 motor driver board acquires external signals through an input conditioning circuit, and then the program performs mode judgment and cycle control.

[0023] STM32 controller chip configuration parameter description table:

[0024] When initializing the touch screen 2, write the valve type, operating mode, speed, cycle, pressure threshold and alarm parameters (the touch screen 2 can be implemented using a human-machine interface device with serial communication capability, as long as it can complete parameter setting and status display functions).

[0025] The valve types correspond to the control flow at test switches 6 for pulse valves and pneumatic valves, test switches 4 for screw valves and test switches 5 for water curtain valves and high-frequency dispensing valves.

[0026] The formula parameters are shown in the table below:

[0027] Example 1: Pulse valve dispensing mode: The touch screen sets the valve opening time, valve closing delay, and anti-drip time; the main control board outputs pulse control and synchronously monitors the pressure. Example 2: Screw valve quantitative dispensing mode: The touch screen sets the rotation speed, running time, acceleration / deceleration and current limit, and the main control board controls the motor drive module through RS485 to complete the quantitative dispensing; Example 3: Water curtain valve cycle operation mode: The touch screen sets the cycle time and target number of times, and the main control board outputs water curtain valve control signals according to the cycle. Example 4: Alarm Protection Mode: When the system detects abnormal pressure, glue blockage, insufficient glue, or motor failure, the main control board immediately stops executing actions and issues an audible and visual alarm; In screw valve mode, the STM32 motor driver board sends start / stop, direction, speed, acceleration / deceleration, and microstepping parameters to the motor control module on touchscreen 2. During execution, pressure, alarm status, and motor feedback values ​​are collected simultaneously and transmitted back to touchscreen 2 in real time.

[0028] The core control module includes: the highest execution layer (application layer): mode management, valve type management, recipe parameter management, automatic cycle control, alarm logic, HMI protocol processing, and motor control board status management; the data flow to the driver layer: RS485 communication driver, valve output driver, STM32 motor driver board protocol driver, analog signal sampling, and alarm output driver; and the lowest BSP layer: clock, GPIO, serial port, timer, watchdog, ADC, and EEPROM. The data flow and calling relationships between the three layers are as follows: Figure 8 As shown: The gas source processing module includes a gas source storage and processing unit. The gas input is collected through the screw valve test switch 4, high-frequency dispensing valve test switch 5, pneumatic valve test switch 6, and signal receiving terminal 7. Data storage is achieved by combining GPIO input, switch input acquisition, and ADC1 analog sampling technology. The processing unit compares the Flash parameter area and formula parameter database between the high-frequency solenoid valve 12 and the positive pressure to negative pressure module 13, and outputs it to one of the three types of valves for execution. The analog sampling circuit sends the pressure and temperature signals to the STM32 ADC. After the program completes the conversion, it sends it back to the touch screen page. It collects analog signals such as glue pressure, auxiliary pressure, and temperature, Flash parameter area, formula and parameter storage, saves process parameters, password, address parameters, and page mapping data. (The pressure detection unit can be implemented using voltage type, current type, or digital sensor, and connected to the main control system through the corresponding conditioning method. The power drive stage can be implemented using MOS tube drive structure, relay drive structure, or dedicated driver chip structure depending on the valve and motor type.)

[0029] The entire control system operates as follows (e.g.) Figure 6 As shown in the image): After the system is powered on, the main control board, motor control module, touch screen and input / output interface are initialized. After the main control board is powered on, the USART2, RS485 transceiver direction control pin and motor control board address are initialized. The touch screen, motor drive module and valve actuator are uniformly managed through the STM32 main control board to realize the common platform control of multiple process objects. The touchscreen displays valve type, operating mode, speed, cycle time, pressure threshold, and alarm parameters. RS485 enables two-way interaction of parameters, status, and alarms, improving system wiring flexibility and module expansion capabilities; The main control board first detects the online and fault status of the motor control board, and then issues the MotorEnable command. The main control board selects to enter the control process of pulse valve, screw valve or water curtain valve according to the valve type. Through the linkage detection of pressure, glue shortage, glue blockage and motor fault, the system operation safety and stability are improved. In screw valve mode, the main control board sends start / stop, direction, speed, acceleration / deceleration and microstepping parameters to the motor control module. After receiving the enable command, the motor control board completes a smooth start according to the target speed and acceleration time. Through unified formula parameter management and permission management, the consistency of equipment operation and the efficiency of on-site debugging are improved. During execution, pressure, status, alarm and motor feedback values ​​are collected synchronously and transmitted back to the touch screen page in real time. During operation, the motor control board transmits current, status and fault codes. The main control board immediately stops and alarms when there is an abnormality. When emergency stop, glue blockage, glue shortage, overcurrent, abnormal pressure or communication failure occurs, the main control board immediately cuts off the execution output and issues an alarm. Through fault reset and protection shutdown mechanism, the risk of damage to the execution components caused by abnormal operation is reduced. Alarm handling procedure: The main control board periodically checks emergency stop, pressure, glue shortage, glue blockage, motor status, and communication status. When any alarm condition is met, the main control board immediately shuts down the valve output, motor enable, and related drive outputs; The alarm code is transmitted back to the touchscreen via RS485 and displayed on the corresponding page; After the alarm is cleared, a reset operation needs to be performed according to the permissions before restarting is allowed; For motor-related faults, the motor control module status is reset simultaneously to prevent repeated starts with the fault.

[0030] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A multi-functional glue valve control system, comprising a core control module and an air source processing module, characterized in that: The core control module includes a main control circuit module (11); the air source processing module includes a signal receiving terminal (7), a screw valve test switch (4), a high-frequency dispensing valve test switch (5), a pneumatic valve test switch (6), a high-frequency solenoid valve (12), and a positive pressure to negative pressure module (13). The main control circuit module (11) integrates an STM32 motor driver board and supports RS485 communication. One RS485 channel in the main control circuit module (11) communicates with the operation touch screen (2) to realize page parameter setting and status display. Another RS485 channel communicates with the STM32 motor driver board to realize the speed, direction, start / stop and alarm linkage of the screw valve connected to the screw valve test switch (4).

2. The multifunctional glue valve control system according to claim 1, characterized in that: The STM32 motor driver board acquires external signals through an input conditioning circuit, and then the program performs mode judgment and cycle control.

3. The multifunctional glue valve control system according to claim 1, characterized in that: When the touch screen (2) is initialized, the valve type, operating mode, speed, cycle, pressure threshold and alarm parameters are written.

4. The multifunctional glue valve control system according to claim 3, characterized in that: The valve types correspond to the control processes of pulse valves, screw valves, and water curtain valves, respectively.

5. The multifunctional glue valve control system according to claim 3, characterized in that: In screw valve mode, the STM32 motor driver board sends start / stop, direction, speed, acceleration / deceleration and microstepping parameters to the motor control module via the operation touch screen (2). During execution, pressure, alarm status and motor feedback values ​​are collected synchronously and transmitted back to the operation touch screen (2) page in real time.

6. The multifunctional glue valve control system according to claim 3, characterized in that: When the alarm is in effect, the alarm code is transmitted back to the touchscreen (2) via RS485 and displayed on the corresponding page. After the alarm is cleared, a reset operation needs to be performed according to the permissions before restarting is allowed.

7. The multifunctional glue valve control system according to claim 1, characterized in that: The core control module includes: the highest execution layer, the application layer: mode management, valve type management, recipe parameter management, automatic cycle control, alarm logic, HMI protocol processing, and motor control board status management; the data flow to the drive layer: RS485 communication driver, valve output driver, STM32 motor driver board protocol driver, analog quantity sampling, and alarm output driver; and the lowest BSP layer: clock, GPIO, serial port, timer, watchdog, ADC, and EEPROM.

8. The multifunctional glue valve control system according to claim 1, characterized in that: The gas source processing module includes a gas source storage and processing unit. The gas input is collected through the screw valve test switch (4), the high-frequency dispensing valve test switch (5), the pneumatic valve test switch (6) and the signal receiving terminal (7). The data is stored by combining GPIO input, switch input acquisition and ADC1 analog sampling technology. The processing unit compares the Flash parameter area between the high-frequency solenoid valve (12) and the positive pressure to negative pressure module (13) with the formula parameter database and outputs it to one of the three types of valves for execution.

9. The multifunctional glue valve control system according to claim 4, characterized in that: In the screw valve mode, the main control board sends commands to the motor control module for start / stop, direction, speed, acceleration / deceleration, and microstepping parameters.

10. A multi-functional glue valve control device, using the multi-functional glue valve control system according to any one of claims 1 to 9, further comprising a controller body (1) for installing the multi-functional glue valve control system, an operation touch screen (2) installed on one side of the controller body (1), a fluid pressure regulating switch (3) provided on the same side of the operation touch screen (2), a screw valve test switch (4), a high-frequency dispensing valve test switch (5) and a pneumatic valve test switch (6) provided directly below the operation touch screen (2), a signal receiving terminal (7) provided on the opposite side of the controller body (1), a cooling fan (8) installed below the signal receiving terminal (7), and the fluid pressure regulating switch (3) connected to a high-frequency solenoid valve (12) via a pipe and then connected to a positive pressure to negative pressure module (13) and a pressurized air tank (14) respectively.

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