Crown joint type full-automatic multi-mode multifunctional flow control system

Abstract

The invention provides a full-automatic multi-mode multifunctional flow control system which aims at accurately controlling a stepping motor or a servo motor to drive a mechanical device for conveying fluid. The control system is suitable for a peristaltic pump, a filling machine, a sample injection pump and other related machines. The device is widely applied to the fields of liquid filling, laboratories, pharmacy, chemical analysis and the like. The system has multiple control modes such as a continuous mode, a timing mode, a quantitative mode, a copy mode and a reservation mode, and different flow control requirements are met. Through the full-color touch liquid crystal display screen, a user can visually operate and set parameters such as flow, flow velocity, time and pipe type. The system supports external equipment, provides a safety detection function, such as full liquid inlet detection and empty liquid outlet detection, and ensures safe and reliable operation. The built-in driver and the external driver support various stepping motors or servo motors, so that the compatibility and the expansibility of the system are enhanced, and the requirements of different application scenes are met.

Description

Specification Technical Field

[0001] The present invention relates to flow control technology, and is applicable to controlling a mechanical device for conveying fluid by driving a stepper motor or a servo motor, and accurately realizing functions such as flow rate, flow velocity, timing, and quantitative distribution. In particular, it is suitable for control systems of peristaltic pumps, filling machines, sampling pumps, pump heads, and other related machinery, and belongs to the technical fields of flow control and automation control. This technology is applicable to fields such as liquid filling, laboratories, pharmaceuticals, chemical analysis, and food processing. Background Art

[0002] Most of the existing flow control systems can only provide a single control mode, such as a constant speed or quantitative mode, and cannot meet various flow control requirements to cope with different application scenarios. Moreover, many existing products have complex operations and lack a user-friendly interface, resulting in inconvenient use. Therefore, there is still a need for a flow control system that can provide multiple control modes and has an intuitive operation interface. Summary of the Invention

[0003] The present invention aims to provide a fully automatic multi-mode and multi-functional flow control system, including: continuous mode, timing mode, quantitative mode, copy mode, reservation mode, flow calibration, tube type selection, tube type setting, automatic / manual, etc., which can flexibly control the flow rate, adapt to different flow control requirements, and cope with different application scenarios. By accurately controlling a stepper motor or a servo motor to drive a mechanical device for conveying fluid, it can accurately realize flow rate, flow velocity, timing, and quantitative distribution, etc. In particular, it is suitable for control systems of peristaltic pumps, filling machines, sampling pumps, pump heads, and other related machinery. The control system provides an intuitive operation interface through a full-color touch liquid crystal display screen, which includes multiple pages. Users can quickly switch modes, set, and control by clicking different icons and buttons, and the interface is user-friendly. It supports the selection and setting of multiple tube types, and supports the access of external control devices (such as foot switches), facilitating manual or automatic control operations. Safety detection and protection: inlet liquid full detection, automatically stop when the container is full; outlet liquid empty detection: automatically stop when the container is empty; detection can also be turned off; ensuring the safety and reliability of operations. Multiple interfaces and their functions (connecting to the display screen, connecting to the stepper motor, connecting to the driver, etc.) facilitate connection and function expansion. The control system mainly consists of a control circuit board ( Figure 9 ).) and a display screen. Technical Solution

[0004] Continuous mode: Displays the cumulative flow rate. Users can set functions such as constant flow velocity, forward / backward rotation, start / stop, continuous / jog, external control YES / NO, etc. It is applicable to precise control during continuous operation.

[0005] Timing Mode: It supports setting flow rate, working time, intermittent time (stop time), number of runs (cycle times), number of operations (accumulative), etc., and is applicable to intermittent flow control.

[0006] Quantitative Mode: The user can directly input the required liquid volume (accurate to 0.01 ml), and can set the flow rate, number of runs (cycle times), intermittent time (stop time), number of operations (accumulative), etc., and is applicable to quantitative dispensing.

[0007] Copy Mode: It supports the user to copy the input liquid volume, automatically record it, and reuse this volume, and can set the flow rate, number of runs (cycle times), intermittent time (stop time), number of operations (accumulative), etc. The user can also directly input the required liquid volume (accurate to 0.01 ml), and is applicable to accurately copying a certain liquid volume and reusing it.

[0008] Reservation Mode: The user can set the reservation time, and the flow control will be automatically started when the time arrives. The user can directly input the required liquid volume (accurate to 0.01 ml), and can set the flow rate, number of runs (cycle times), intermittent time (stop time), number of operations (accumulative), etc., and is applicable to quantitative occasions that require delayed start.

[0009] Flow Calibration: Ensure the flow accuracy of the device through the calibration function.

[0010] Tube Type Setting: Provide a variety of common tube type selections and settings, and support custom tube types.

[0011] Input and Display: Full-color full-touch liquid crystal display screen, which can display information such as flow rate, flow velocity, speed, time, etc. in real time, and supports touch input, simplifying the operation. The user can set parameters such as flow rate, flow velocity, tube type, working mode, etc. through the interface.

[0012] Detection and Protection: External detection function, inlet liquid full detection, automatically stop when the container is full; outlet liquid empty detection, automatically stop when the container is empty, etc., to prevent liquid overflow or equipment idling, ensure safety during the operation process, and the detection can also be turned off.

[0013] Multiple Interfaces and Their Functions: Include external driver interface 6, which can be externally connected to a stepper motor driver or a servo motor driver and controlled; foot switch interface 3, connected to the foot switch, and collect its signal for corresponding control; detection sensor interface 4, connected to the detection sensor, used for liquid detection and control, and there are also multiple expansion interfaces: 7, 8, 9, 10, 11, 12, 13, 14, 15, which are convenient for expanding other functions, enhancing the flexibility and expandability of the system, and there are also power supply interface 1, stepper motor interface 2, and display screen interface 5.

[0014] Built-in Driver and External Driver: This control system is built-in with a stepper motor driver, which supports directly driving a stepper motor with a current ≤ 3A to drive the mechanical device for conveying fluid. This control system also supports an external driver to drive a stepper motor or a servo motor with any power to drive the mechanical device for conveying fluid, improving the compatibility and expandability of the system.

[0015] The display interface of the control system includes multiple pages, namely: Figure 1 ) the main page ( Figure 2 ), the continuous mode page ( Figure 3 ), the timing mode page ( Figure 4 ), the copy mode page ( Figure 5 ), the quantitative mode page ( Figure 6 ), the reservation mode page ( Figure 7 ), the system settings page ( Figure 8 ), the flow calibration page, the pipe type setting page, the screen calibration page, the factory reset page, the clock setting page, etc. The main page includes six graphic icons, namely: Continuous mode Timing mode Quantitative mode Copy mode Reservation mode System settings, Click on the corresponding icon to enter the relevant page. The system settings page also includes six graphic icons, namely: Flow calibration Pipe type setting Screen calibration Return to home page Factory reset Clock setting, Click on the corresponding icon to enter the relevant page.

[0016] Introduction and use of multi - mode and multi - function Continuous mode: Displays the cumulative flow rate, etc. Various pipe types are available. You can directly input the required flow rate xxxxx.xml / min. Forward and reverse rotation can be set. Continuous or jogging can be selected. Start / stop, and it can be externally controlled (including foot - pedal function, etc.). An external detection sensor can be connected: liquid - inlet full detection, automatically stop when the container is full; liquid - outlet empty detection: automatically stop when the container is empty; or detection is turned off. Displays the rotation speed and has a screen lock to prevent accidental touch. Home page button (click to return to the home page). High flow accuracy and stable operation, suitable for occasions requiring continuous flow control.

[0017] Timing mode: Displays various times, etc. Various tube types are available. You can directly input the required flow rate xxxxx.xml / min. The working time can be set, the intermittent time (stop time) can be set, the number of runs (cycle times) can be set, the number of working times (accumulative) can be modified, forward and reverse rotation can be set, automatic / manual can be selected, start / stop, and external control can be connected (including foot pedal function, etc.). External detection sensors can be connected: liquid inlet full detection, automatically stop when the container is full; liquid outlet empty detection: automatically stop when the container is empty; or detection can be turned off. The rotation speed is displayed, and there is a screen lock to prevent accidental touch. Home button (click to return to the home page). Widely used in automated production and laboratory applications.

[0018] Copy mode: Displays various liquid volumes (ml), etc. Various tube types are available. You can directly input the required flow rate xxxxx.xml / min. Start emptying / stop emptying, start copying / stop copying: used to copy the amount you need. After emptying, click start copying. When you reach the amount you need, click stop copying. This amount xxxxxx.xxml will be automatically recorded, accurate to 0.01 ml. Press start to use the amount just copied. Users can also directly input the required liquid volume (accurate to 0.01 ml). The intermittent time (stop time) can be set, the number of runs (cycle times) can be set, the number of working times (accumulative) can be modified, forward and reverse rotation can be set, automatic / manual can be selected, start / stop, and external control can be connected (including foot pedal function, etc.). External detection sensors can be connected: liquid inlet full detection, automatically stop when the container is full; liquid outlet empty detection: automatically stop when the container is empty; or detection can be turned off. The rotation speed is displayed, and there is a screen lock to prevent accidental touch. Home button (click to return to the home page). It can copy specific flow rates according to actual needs and is suitable for scenarios that require batch fluid processing.

[0019] Quantitative mode: Displays various liquid volumes (ml), etc. Various tube types are available. You can directly input the required flow rate xxxxx.xml / min. Quantitative setting: You can directly input the liquid volume xxxxxx.xxml you need, accurate to 0.01 ml. The intermittent time (stop time) can be set, the number of runs (cycle times) can be set, the number of working times (accumulative) can be modified, forward and reverse rotation can be set, automatic / manual can be selected, start / stop, and external control can be connected (including foot pedal function, etc.). External detection sensors can be connected: liquid inlet full detection, automatically stop when the container is full; liquid outlet empty detection: automatically stop when the container is empty; or detection can be turned off. The rotation speed is displayed, and there is a screen lock to prevent accidental touch. Home button (click to return to the home page). It can accurately control the fluid delivery volume through the quantitative function and is suitable for occasions that require quantitative distribution.

[0020] Reservation mode: Display the appointment time and countdown, as well as various liquid volumes (ml), etc. Various tube types are available. Directly enter the required flow rate xxxxx.xml / min. For quantitative setting: directly enter the liquid volume xxxxxx.xx ml you need, accurate to 0.01 ml. The appointment time can be set: hours, minutes, and seconds. After starting, the countdown begins, and it will automatically start running when the time arrives. The intermittent time (stop time) can be set, the number of runs (cycle times) can be set, the number of working times (accumulative) can be modified, forward and reverse can be set, automatic / manual can be selected, start / stop, and it can be externally controlled (including foot pedal function, etc.). An external detection sensor can be connected: for detecting the full liquid in the inlet, it will automatically stop when the container is full; for detecting the empty liquid in the outlet: it will automatically stop when the container is empty; or the detection can be turned off. Display the rotation speed, with a screen lock to prevent accidental touch. Home button (click to return to the home page). Suitable for quantitative occasions that require delayed start.

[0021] Flow calibration: Display the calibration progress, etc. The calibration operation process: On the calibration page, select the required tube type, and directly enter the 'rotation speed during calibration' and 'calibration time required'. Generally, 300 prm and 1 min are commonly used. First, click the evacuation button, stop after evacuation, then click the start button, and the calibration starts. After the calibration is completed (the calibration progress becomes 100%), then enter the total amount (the actual total amount) and confirm. The buttons include: start / stop, evacuation / stop, forward / reverse, return (return to the previous page). Provide accurate flow calibration to ensure its accuracy and consistency.

[0022] Tube type selection and tube type setting: Multiple common tube types are available, and it includes 2 custom tube types. On the tube type setting page, the user can set the tube type or customize the tube type.

[0023] Other functions: Screen calibration: Ensure the touch screen operation accuracy through the calibration steps. Restore factory settings: Clear user settings and restore the device's default configuration. Clock setting: Set the date and time. Return to the home page: Quickly return to the main page for easy mode switching. Others: The same as the technical solution, not elaborated here. Description of the drawings

[0024] Figure 1 : Photo of the main page of the control system.

[0025] Figure 2 : Photo of the continuous mode page.

[0026] Figure 3 : Photo of the timing mode page.

[0027] Figure 4 : Photo of the copy mode page.

[0028] Figure 5: Photo of the quantitative mode page.

[0029] Figure 6 : Photo of the reservation mode page.

[0030] Figure 7 : Photo of the system settings page.

[0031] Figure 8 : Photo of the flow calibration page.

[0032] Figure 9 : Photo of the control circuit board of the control system and each interface. Detailed implementation method Embodiment

[0033] Embodiment A control system applied to a peristaltic pump. When operating in the 'continuous mode', Usage scenario: A laboratory technician needs to continuously and stably deliver a certain chemical reagent through a peristaltic pump, ensuring a consistent flow rate per hour and being able to perform forward and reverse rotation control for equipment cleaning. Operation process: Start the device: On the full-color touch liquid crystal screen, click the 'Continuous Mode' icon to enter its interface. Set the flow rate: Directly enter the required flow rate (e.g., 50 ml / min) in the interface, and then select the tube type used (such as 24# tube). Enable the flow: Select the 'Forward Rotation' mode to ensure the fluid is output in the predetermined direction. Click the 'Start' button, and the device starts to work. Color screen display: The screen displays the cumulative flow rate and rotation speed in real time to ensure stable output during the experiment. Adjustment and control: Click the 'Stop' button to pause or stop the delivery. If you need to change the direction, you can select 'Reverse' in the interface for equipment cleaning. External control: If a foot switch is needed, it can be connected through the interface to control start and stop. Operation summary: This device can achieve stable flow rate output through the continuous mode, is suitable for long-term and high-precision chemical reagent delivery, especially for scenarios that require continuous control in the laboratory.

[0034] Embodiment A control system applied to a filling machine. When operating in the 'timing mode', Usage scenario: On the production line, it is necessary to automatically fill containers at regular intervals, the time interval for each filling is fixed, and multiple fillings need to be carried out within a certain period of time. Operation process: Start the device: Click the 'Timing Mode' icon on the touch screen to enter its page. Set parameters: Input the required flow rate (e.g., 100 ml / min), Set the "working time" (e.g., 5 seconds) and "intermittent time" (e.g., 10 seconds) to pause for an appropriate time after each filling, Set the "number of runs" (e.g., 20 times) and adjust whether it is in "automatic or manual" mode, Start mode: Click the "Start" button, and the device will run automatically at the set time intervals and pause after each filling, External control: A foot switch can be connected to manually control the start and stop of each filling, Operation summary: The timing mode is suitable for the application of the filling machine, which can accurately control the time and interval of each filling, making the automated filling process in the production line more efficient and reliable.

[0035] Example A control system applied to a syringe pump, when operating in the 'quantitative mode', Usage scenario: In chemical analysis experiments, it is necessary to accurately inject a certain amount of solution into the experimental equipment, and the volume injected each time needs to be precisely controlled, and it needs to be injected once or multiple times, Operation process: Start the device: Click the "Quantitative Mode" icon on the screen to enter its page, Set parameters: Input the required flow rate (e.g., 10 ml / min), Input the volume of the liquid to be injected (e.g., 50 ml), Set the "intermittent time (stop time) (e.g., 10 seconds)", Set the "number of runs (cycle times) (e.g., 1 time)", Start injection: Click the "Start" button, and the device will start to accurately inject the solution at the set flow rate and volume, Color screen display: The liquid crystal screen displays various liquid volumes, flow rates, and times to ensure the injection process is error-free, External control: A foot switch can be externally connected, Operation summary: The quantitative mode is suitable for occasions that require precise control of the injection volume, such as chemical analysis, pharmaceutical, and other fields. By accurately inputting the liquid volume, the consistency and accuracy of each operation are ensured.

[0036] Example A control system applied to a liquid batch processing system, when operating in the 'duplication mode', Usage scenario: During the production process, it is necessary to duplicate a certain amount of liquid and output it in batches multiple times, and the amount output each time needs to be precisely the same, Operation process: Starting device: Tap the "Copy Mode" icon on the screen to enter its page. Setting parameters: Enter the required flow rate (e.g., 50 ml / min). Starting copying: Tap the "Start Copying" button. The device will deliver the liquid to the container at the set flow rate. When the required liquid volume is reached, tap "Stop Copying" to complete the copying. Automatically save the copied volume. Press "Start" to use the just-copied volume. Also, the intermittent time (stop time) can be set, the number of runs (cycle times) can be set, and the number of working times (accumulative) can be modified. If you don't want to copy, the copied volume can also be directly entered. Operation summary: The copy mode is applicable to occasions of batch production or when liquid volume needs to be copied, such as beverage production, chemical reagent dispensing, etc., to ensure the consistency of each liquid output volume.

[0037] Embodiment A control system applied to a liquid delivery system with timed start. When working in the'reservation mode', usage scenario: In a certain experiment, liquid delivery operation needs to start automatically after a specific time to avoid delays in manual operation. Operation process: Starting device: Tap the "Reservation Mode" icon on the touch screen to enter its page. Setting parameters: Enter the required flow rate (e.g., 20 ml / min). Set the reservation time (e.g., after 3 hours). The device will automatically start running when the specified time is reached. Enter the quantitative requirement (e.g., 100 ml) and other auxiliary parameters. Starting reservation: Tap the "Start" button. The device will start counting down. Operation completed: After the reservation time arrives, the device automatically starts fluid delivery until the quantitative task is completed. Operation summary: The reservation mode is very suitable for liquid delivery tasks that need delayed start, especially in occasions where automatic start operations are required according to time arrangements in the production line.

[0038] These operation cases demonstrate how to flexibly use different modes and settings to ensure that the device can accurately and stably perform tasks under diverse requirements, and are widely applicable to different application scenarios such as laboratories and production lines.

Claims

1. A fully automatic multi-mode and multi-functional flow control system, characterized in that: include: Multiple control modes and functions, including continuous mode, timing mode, quantitative mode, copy mode, reservation mode, flow calibration and tube type selection; The control system drives the mechanical device for conveying fluid by precisely controlling the stepper motor or servo motor to accurately realize the functions of flow rate, flow velocity, timing and quantitative distribution; The control system provides an intuitive operation interface through a full-color touch LCD screen to display information such as flow rate, flow velocity, time, etc. Users can switch modes, set parameters and operate through the touch interface; Supports selection and setting of multiple tube types, and supports custom tube types; The display interface contains multiple pages; Support multiple interfaces and their functions, including external drive interface 6, detection sensor interface 4, foot switch interface 3, and multiple expansion interfaces 7, 8, 9, 10, 11, 12, 13, 14, 15, so as to expand other functions, as well as power interface 1, stepper motor interface 2, display interface 5; It has safety detection and protection functions, including full liquid inlet detection, automatic stop when the container is full, empty liquid outlet detection, automatic stop when the container is empty, etc. Built-in drive and external drive function; The control system mainly consists of a control circuit board (Figure 9) and a display screen.

2. The flow control system according to claim 1, characterized in that: The continuous mode supports recording the accumulated flow rate. Users can set a constant flow rate, forward and reverse operation, as well as start / stop, continuous / jog functions. It supports a variety of tube type selections and external control YES / NO, and is suitable for occasions that require continuous flow control.

3. The flow control system according to claim 1, characterized in that: The timing mode supports setting flow rate, working time, intermittent time (stop time), number of operations (number of cycles) and number of working times (cumulative), and can realize automatic / manual switching, forward and reverse operation, and start / stop, supports multiple tube type selection, supports external control YES / NO, and is suitable for intermittent flow control.

4. The flow control system according to claim 1, characterized in that: The quantitative mode supports the user to directly input the required amount of liquid, and can set the flow rate, number of operations (number of cycles), interval time (stop time), and number of working times (cumulative), and can realize automatic / manual switching, forward and reverse operation, and start / stop, support a variety of tube type selections, support external control YES / NO, and is suitable for quantitative distribution.

5. The flow control system according to claim 1, characterized in that: The copy mode allows the user to copy the liquid volume and record the volume for subsequent reuse. It supports the user to directly input the required liquid volume, and can set the flow rate, number of operations (number of cycles), interval time (stop time), and number of working times (cumulative). It can also realize automatic / manual switching, forward and reverse operations, and start / stop, support emptying operations, support a variety of tube type selections, support external control YES / NO, and is suitable for batch fluid processing.

6. The flow control system according to claim 1, characterized in that: The reservation mode allows the user to set the reservation time and start the flow control at a scheduled time. It supports setting the flow rate, working time, intermittent time (stop time), number of operations (number of cycles) and number of operations (cumulative), and can realize automatic / manual switching, forward and reverse operation, and start / stop. It supports a variety of tube type selections and external control YES / NO, and is suitable for quantitative occasions with delayed start.

7. The flow control system according to claim 1, characterized in that: The flow calibration is used to calibrate the flow accuracy of the device. The user can select the tube type, set the speed and calibration time, empty, start / stop, and enter the total amount to complete the calibration operation.

8. The flow control system according to claim 1, characterized in that: The system supports selection and setting of multiple tube types, and supports custom tube types: selecting a tube type in the tube type selection, and setting a tube type or customizing a tube type in the tube type setting page.

9. The flow control system according to claim 1, characterized in that: The display interface includes multiple pages, including: main page (Figure 1), continuous mode page (Figure 2), timing mode page (Figure 3), copy mode page (Figure 4), quantitative mode page (Figure 5), reservation mode page (Figure 6), system settings page (Figure 7), flow calibration page (Figure 8), tube type settings page, screen calibration page, factory restore page, clock settings page, etc.

10. The flow control system according to claim 1, characterized in that: The system supports multiple interfaces and their functions, including an external driver interface 6, which can be externally connected to a stepper motor driver or a servo motor driver for control; a foot switch interface 3, which is connected to a foot switch and collects its signal for corresponding control; a detection sensor interface 4, which is connected to a detection sensor for liquid detection and control, and multiple expansion interfaces: 7, 8, 9, 10, 11, 12, 13, 14, 15, which are convenient for expanding other functions and enhancing the flexibility and expansibility of the system, as well as a power supply interface 1, a stepper motor interface 2, and a display interface 5.

11. The flow control system according to claim 1, characterized in that: The safety detection and protection functions include full liquid inlet detection and empty liquid outlet detection. Through an external detection sensor, the device automatically stops when the liquid reaches the container full or the container is empty to prevent liquid overflow or equipment idling. The detection can also be turned off.

12. The flow control system according to claim 1, characterized in that: The built-in driver and the external driver function include a built-in stepper motor driver that directly supports a stepper motor with a current ≤ 3A to drive a mechanical device for conveying fluids, and also supports an external driver to drive a stepper motor or servo motor of any power to drive a mechanical device for conveying fluids.

13. The flow control system according to claim 1, characterized in that: The control system is mainly composed of a control circuit board and a display screen, and mainly includes a control circuit board: FIG9 , a display screen.

14. The flow control system according to claim 1, characterized in that: The control system has high-precision flow control and is suitable for automatic control in the fields of liquid filling, laboratory, pharmaceutical, chemical analysis, food processing, etc.

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