Liquid split charging automatic adding device and control method thereof

Abstract

The invention discloses a liquid split charging automatic adding device and a control method thereof, and belongs to the technical field of liquid split charging. The device comprises a supporting structure, a weighing structure, a liquid storage and conveying structure, a control structure and an interaction structure. The supporting structure provides support for the device; the weighing structure monitors the weight of the liquid in real time through a weighing sensor; the liquid storage and conveying structure conveys liquid through a silicone tube, a peristaltic pump and the like. The control structure controls operation of each component based on the circuit board. The interactive structure adopts a touch screen to facilitate parameter setting and state checking. The control method comprises the steps of device initialization, parameter setting, sub-packaging execution, processing ending and the like. The intelligent liquid subpackaging system solves the problems that a traditional liquid subpackaging mode is low in precision and efficiency, large in labor intensity, inconvenient to adjust parameters and the like, can achieve automatic and intelligent liquid subpackaging, improves the subpackaging efficiency and precision, reduces the labor intensity of workers, and is suitable for the industrial fields needing liquid subpackaging such as chemical engineering, pharmacy and food.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid sub-packaging, and more particularly to an automatic liquid sub-packaging adding device and its control method. Background Art

[0002] In industrial fields such as chemical engineering, pharmaceuticals, and food, liquid sub-packaging is a key link in the production process, and its accuracy and efficiency directly affect product quality and production costs. Traditional liquid sub-packaging methods mainly rely on manual operations, measuring by graduated cylinders or manually controlling valve switches to achieve sub-packaging, which have the following significant defects: Low sub-packaging accuracy: Manual operations are limited by visual judgment and hand control errors. Especially for micro or high-precision sub-packaging requirements (such as reagent sub-packaging in the pharmaceutical industry), it is difficult to meet the weight accuracy requirement within ±1%, which easily leads to uneven quality of batch products.

[0003] Low efficiency: Manual sub-packaging requires repeated operations of "measuring - pouring - calibrating". The time taken for single-bottle sub-packaging is as long as 10 - 30 seconds, and it cannot meet the sub-packaging efficiency requirements of hundreds to thousands of bottles per hour in large-scale production.

[0004] High labor intensity: Long-term repeated operations easily cause fatigue of workers, increase the risk of misoperations, and for corrosive or toxic liquids, manual contact poses safety hazards.

[0005] Inconvenient parameter adjustment: Traditional equipment lacks real-time monitoring and automatic control functions. If it is necessary to adjust the sub-packaging weight or speed, it is necessary to stop the machine for manual calibration, with poor flexibility and difficulty in adapting to the rapid switching production of multi-specification products.

[0006] Although there are some automated sub-packaging devices in the prior art, they generally have problems such as complex structures, high costs, or single control logics. For example, some devices only estimate the sub-packaging volume through a time-flow model without integrating real-time weighing feedback, and are easily affected by factors such as liquid viscosity and pipeline pressure changes, resulting in the actual sub-packaging weight deviating from the set value; other devices have weighing functions, but adopt an off-line calibration method and cannot be dynamically adjusted during the sub-packaging process, and there is still room for improvement in control accuracy. Therefore, there is an urgent need for a liquid sub-packaging automatic adding device with a compact structure, precise control, and convenient operation to solve the problems of insufficient efficiency, accuracy, and automation degree existing in the prior art. Summary of the Invention

[0007] The object of the present invention is to provide a liquid sub-packaging automatic adding device and its control method to improve the efficiency and accuracy of liquid sub-packaging, reduce the manual labor intensity, and realize the automatic and intelligent control of the liquid sub-packaging process.

[0008] To achieve the above object, the present invention provides a liquid dispensing automatic adding device, including a support structure, a weighing structure, a liquid storage and conveying structure, a control structure and an interaction structure; the support structure is mechanically connected to other parts of the device; the weighing structure is mechanically connected to the support structure; the liquid storage and conveying structure is connected and communicated with the weighing structure; the control structure is electrically connected to the weighing structure and the liquid storage and conveying structure; the interaction structure is electrically connected to the control structure; The control structure includes a circuit board and an electrical control chassis, and the circuit board is installed in the electrical control chassis by bolts or buckles.

[0009] Preferably, the support structure includes a filling bracket and a bottom plate of the electrical control chassis, and the bottom plate of the electrical control chassis is connected to the electrical control chassis by bolts or welding; A spirit level is provided on the support structure, and the spirit level is installed on the outer shell of the electrical control chassis by gluing or bolts.

[0010] Preferably, the weighing structure includes a weighing pan and a weighing sensor, the weighing sensor is installed under the weighing pan by bolts, and the weighing sensor is also electrically connected to the circuit board.

[0011] Preferably, the liquid storage and conveying structure includes a silica gel tube, both ends of the silica gel tube are respectively connected to an automatic adding barrel and an adding cup by a sealing socket method, a peristaltic pump is installed on the silica gel tube by a clamp or a fixture, a filling needle is installed on the adding cup by a threaded connection or a plug-in connection method, and the peristaltic pump is also electrically connected to the circuit board.

[0012] Preferably, the interaction structure is a touch screen, and the touch screen is installed on the circuit board by bolts or gluing.

[0013] The present invention also provides a control method for a liquid dispensing automatic adding device, including the following steps: S1: Device initialization, checking the connection of each structure and setting parameters; S2: Start the dispensing program, control the liquid delivery through the electrical connection between the control structure and the liquid storage and conveying structure, and obtain the weight information through the electrical connection between the control structure and the weighing structure; S3: When the weight information reaches the preset value, the control structure controls the liquid storage and conveying structure to stop the liquid delivery through the electrical connection and perform the dispensing operation; S4: Repeat steps S2 - S3 until the preset dispensing quantity is completed; S5: End the dispensing program, close the relevant connections through the control structure and perform subsequent processing.

[0014] Preferably, the S1 step is specifically as follows: Check the sealed socket connection of the silicone tube with the automatic addition barrel and the addition cup, and the electrical connections of the circuit board with the weighing sensor, the peristaltic pump, and the touch screen; Turn on the power switch to start the device; Set parameters on the touch screen through the electrical connection with the circuit board.

[0015] Preferably, the S2 step is specifically as follows: After starting the dispensing program, the circuit board controls the operation of the peristaltic pump through the electrical connection with the peristaltic pump, so that the liquid flows through the silicone tube; The weighing sensor transmits the weight information to the circuit board through the electrical connection with the circuit board.

[0016] Preferably, the S3 step is specifically as follows: The circuit board compares the received weight information with a preset value. When the preset value is reached, it controls the peristaltic pump to stop through the electrical connection with the peristaltic pump; Perform the dispensing operation.

[0017] Preferably, the S5 step is specifically as follows: After completing the preset dispensing quantity, the circuit board closes the peristaltic pump through the electrical connection with the peristaltic pump, and cuts off the power supply through the association with the power switch; If necessary, print data through the electrical connection between the circuit board and the printer interface, and the data interface performs data transmission and printing; Check and maintain the connection part of the device.

[0018] Therefore, the liquid dispensing automatic addition device and its control method with the above structure of the present invention have the following beneficial effects: (1) Through the automated liquid transportation and dispensing process, the present invention reduces manual intervention, greatly improves the liquid dispensing speed, and can meet the requirements of large-scale production. At the same time, the weighing sensor is used to monitor the liquid weight in real time, and the circuit board precisely controls the operation of the peristaltic pump, effectively avoiding the errors caused by manual operation, ensuring that the weight of each bottle of dispensed liquid meets the set requirements, and improving the stability of product quality.

[0019] (2) The automated operation process of the present invention reduces the labor intensity of workers and lowers the labor cost. The human-machine interaction interface (touch screen) facilitates the staff to flexibly set parameters according to different dispensing requirements, improving the applicability and operability of the device. And the device is provided with a variety of interfaces, which can be connected to external devices such as printers and monitors, facilitating data recording and analysis, and further expanding the functions of the device.

[0020] Next, through the drawings and embodiments, the technical solutions of the present invention will be further described in detail. Description of the Drawings

[0021] Figure 1 It is the overall structural schematic diagram of a liquid dispensing automatic addition device and its control method of the present invention; Figure 2Internal schematic diagram of the structure of an automatic liquid dispensing and adding device and its control method according to the present invention; Figure 3 Flow schematic diagram of an automatic liquid dispensing and adding device and its control method according to the present invention; Reference numerals 1. Filling bracket, 2. Weighing pan, 3. Adding cup, 4. Filling needle, 5. Level gauge, 6. Touch screen, 7. Silicone tube, 8. Electrical control chassis, 9. Automatic adding bucket, 10. Peristaltic pump, 11. Adapter socket, 12. Printer interface, 13. Power switch, 14. VGA 9-pin interface, 15. USB interface, 16. Weighing sensor, 17. Circuit board, 18. Bottom plate of electrical control chassis. Detailed implementation manners

[0022] The technical solutions of the present invention will be further described below with reference to the drawings and embodiments.

[0023] Unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] Embodiment As Figure 1-2 shown, the present invention provides an automatic liquid dispensing and adding device, which mainly consists of a support structure, a weighing assembly, a liquid storage and transportation assembly, a control assembly and a human-computer interaction assembly.

[0025] Support structure: It includes a filling bracket 1 and a bottom plate 18 of the electrical control chassis. The filling bracket 1 is located at the bottom of the device and provides stable support for the whole device; the bottom plate 18 of the electrical control chassis provides bottom support for the electrical control chassis 8.

[0026] Weighing assembly: It consists of a weighing pan 2 and a weighing sensor 16. The weighing pan 2 is installed on the filling bracket 1 and is used to place the adding cup 3; the weighing sensor 16 is installed below the weighing pan 2 to monitor the weight of the liquid in the adding cup 3 in real time.

[0027] Liquid storage and transportation component: It includes an automatic addition bucket 9, a silica gel tube 7, a peristaltic pump 10, an addition cup 3, and a filling needle 4. The automatic addition bucket 9 is placed at a higher position for storing the liquid to be sub-packaged; the silica gel tube 7 connects the automatic addition bucket 9 and the addition cup 3, and the peristaltic pump 10 is installed on the path of the silica gel tube 7 to drive the liquid to flow from the automatic addition bucket 9 to the addition cup 3 through peristalsis; the filling needle 4 is arranged at the bottom or below the side of the addition cup 3 for guiding the liquid in the addition cup 3 to the target sub-packaging container.

[0028] Control component: With the circuit board 17 as the core, it is installed inside the electrical control chassis 8 and is connected to components such as the peristaltic pump 10 and the weighing sensor 16 through wires, receives the weight signal of the weighing sensor 16, and controls the operation of the peristaltic pump 10 according to the preset parameters.

[0029] Human-machine interaction component: That is, the touch screen 6, which is installed on the front of the electrical control chassis 8. Staff can set sub-packaging parameters through the touch screen 6, such as the peristaltic pump speed, liquid flow rate, weight per bottle for filling, filling quantity, etc., and view the operating status of the device in real time.

[0030] In addition, the device is also provided with a level 5, which is installed on the upper surface of the filling bracket 1 for detecting the level state of the device; and an adapter socket 11, a printer interface 12, a power switch 13, a VGA 9-pin interface 14, and a USB interface 15, which are distributed on the side or back of the electrical control chassis 8 for connecting external devices and controlling the power on and off of the device.

[0031] As Figure 3 shown, the present invention also provides a control method implemented based on the above liquid sub-packaging automatic addition device, mainly including the following steps: Initialization step: Check the connection of each component of the device to ensure that the silica gel tube 7 is tightly connected without leakage; adjust the device to a level state through the level 5; turn on the power switch 13, start the device, and perform self-check and initialization operations.

[0032] Parameter setting step: The staff inputs the parameters required for sub-packaging on the touch screen 6, including the operating speed of the peristaltic pump 10, the flow rate of the liquid, the target weight per bottle for filling, and the total number of bottles to be sub-packaged, etc.

[0033] Sub-packaging execution steps: After starting the sub-packaging program, the circuit board 17 controls the peristaltic pump 10 to start running according to the set parameters, driving the liquid in the automatic addition barrel 9 to flow into the addition cup 3 through the silicone tube 7. The weighing sensor 16 monitors the weight of the liquid in the addition cup 3 in real time and transmits the weight signal to the circuit board 17. The circuit board 17 compares the received weight signal with the set target weight for each bottle filling in real time. When the weight of the liquid in the addition cup 3 reaches the target weight, the circuit board 17 sends a control signal to stop the peristaltic pump 10. At this time, the operator operates the filling needle 4 to sub-package the liquid in the addition cup 3 into the target container. Repeat the above processes of liquid transportation, weight monitoring, and sub-packaging until the set number of sub-packaged bottles is reached.

[0034] End processing steps: After completing all sub-packaging tasks, turn off the peristaltic pump 10 and the power switch 13. If necessary, connect a printer through the printer interface 12 to print relevant data during the sub-packaging process, such as the actual weight of each bottle, the total number of sub-packaged bottles, etc. Finally, clean and maintain the device to prepare for the next sub-packaging work.

[0035] The installation and debugging of the device are as follows: Place the filling bracket 1 on a stable workbench and ensure it is placed horizontally.

[0036] Install components such as the weighing tray 2, addition cup 3, filling needle 4, level gauge 5, etc., and ensure that all components are firmly installed.

[0037] Connect the silicone tube 7, with one end connected to the automatic addition barrel 9 and the other end connected to the addition cup 3, and install the peristaltic pump 10.

[0038] Install the electrical control chassis 8, install the circuit board 17 inside the chassis, and connect the wires of all electrical components, including the weighing sensor 16, peristaltic pump 10, touch screen 6, adapter socket 11, printer interface 12, power switch 13, VGA 9-pin interface 14, USB interface 15, etc.

[0039] Turn on the power and conduct the debugging of the device to check whether all components are working properly, whether the weighing sensor 16 can accurately measure the weight, whether the peristaltic pump 10 can operate normally, etc.

[0040] The liquid sub-packaging operation is as follows: Operate according to the steps of the above control method. First, perform the initialization step, check the device and adjust it to the horizontal state, and turn on the power to start the device.

[0041] Set the sub-packaging parameters on the touch screen 6 according to actual needs, such as the peristaltic pump speed, liquid flow rate, weight per bottle for filling, filling quantity, etc.

[0042] Start the dispensing program, and the device will automatically perform liquid dispensing. The staff only need to operate the filling needle 4 to dispense the liquid into the target container after the liquid in the addition cup 3 reaches the set weight.

[0043] After the dispensing task is completed, shut down the device, print the data and perform cleaning and maintenance according to the end processing steps.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An automatic adding device for liquid sub-packaging, characterized in that: It includes a support structure, a weighing structure, a liquid storage and transportation structure, a control structure, and an interaction structure; the support structure is mechanically connected to other parts of the device; the weighing structure is mechanically connected to the support structure; the liquid storage and transportation structure is in communication with the weighing structure; the control structure is electrically connected to the weighing structure and the liquid storage and transportation structure; the interaction structure is electrically connected to the control structure; The control structure includes a circuit board and an electrical control chassis, and the circuit board is installed in the electrical control chassis by bolts or buckles.

2. The automatic liquid dispensing and adding device according to claim 1, characterized in that: The support structure includes a filling bracket and a bottom plate of the electrical control chassis, and the bottom plate of the electrical control chassis is connected to the electrical control chassis by bolts or welding; A level gauge is provided on the support structure, and the level gauge is installed on the bottom plate of the electrical control chassis by gluing or bolts.

3. The automatic liquid dispensing and adding device according to claim 1, characterized in that: The weighing structure includes a weighing pan and a weighing sensor, the weighing sensor is installed on the weighing pan by bolts or pasting, and the weighing sensor is also electrically connected to the circuit board.

4. The automatic liquid dispensing and adding device according to claim 1, wherein: The liquid storage and transportation structure includes a silicone tube, both ends of the silicone tube are connected to an automatic adding bucket and an adding cup by a sealing socket connection respectively, a peristaltic pump is installed on the silicone tube by a clamp or fixture, a filling needle is installed on the adding cup by a threaded connection or a plug-in connection, and the peristaltic pump is also electrically connected to the circuit board.

5. The automatic liquid dispensing and adding device according to claim 1, characterized in that: The interaction structure is a touch screen, and the touch screen is installed on the circuit board by bolts or gluing.

6. A control method for the liquid dispensing automatic adding device according to any one of claims 1-5, characterized in that, It includes the following steps: S1: Initialize the device, check the connection of each structure and set parameters; S2: Start the sub-packaging program, control the liquid transportation through the electrical connection between the control structure and the liquid storage and transportation structure, and obtain the weight information through the electrical connection between the control structure and the weighing structure; S3: When the weight information reaches the preset value, the control structure controls the liquid storage and transportation structure to stop the liquid transportation through the electrical connection and perform the sub-packaging operation; S4: Repeat steps S2 - S3 until the preset sub-packaging quantity is completed; S5: End the sub-packaging program, close the relevant connections through the control structure and perform subsequent processing.

7. The control method of an automatic liquid dispensing and adding device according to claim 6, characterized in that: The specific content of step S1 is: Check the sealing socket connection between the silicone tube and the automatic adding bucket and the adding cup, and the electrical connections between the circuit board and the weighing sensor, the peristaltic pump, and the touch screen; Turn on the power switch to start the device; Set parameters on the touch screen through the electrical connection with the circuit board.

8. The control method of an automatic liquid dispensing and adding device according to claim 6, characterized in that: The specific content of step S2 is: After starting the sub-packaging program, the circuit board controls the peristaltic pump to operate through the electrical connection with the peristaltic pump, so that the liquid flows through the silicone tube; The weighing sensor transmits the weight information to the circuit board through the electrical connection with the circuit board.

9. The control method of an automatic liquid dispensing and adding device according to claim 6, wherein: The specific content of step S3 is: The circuit board compares the received weight information with the preset value, and when it reaches the preset value, controls the peristaltic pump to stop through the electrical connection with the peristaltic pump; Perform the sub-packaging operation.

10. The control method of an automatic liquid dispensing and adding device according to claim 6, characterized in that: The specific content of step S5 is: After completing the preset sub-packaging quantity, the circuit board closes the peristaltic pump through the electrical connection with the peristaltic pump, and cuts off the power supply through the association with the power switch; If necessary, perform data transmission and printing through the data interface; Check and maintain the connection part of the device.

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