Stock solution split charging device and split charging method

Abstract

The invention provides a stock solution sub-packaging device and a sub-packaging method.The stock solution sub-packaging device comprises a sub-packaging support, a plurality of trays symmetrically arranged on the two sides of the sub-packaging support, a main pipeline arranged on the sub-packaging support and weighing sensors arranged on the two sides of the bottom of the sub-packaging support; branch pipelines communicated with the liquid separation bag are symmetrically arranged on the two sides of the main pipeline, the main pipeline is communicated with the stock solution storage device, bubble sensors are arranged at the two ends of the main pipeline and used for detecting bubbles in the main pipeline, and stock solution to be subpackaged in the stock solution storage device sequentially passes through the main pipeline and the branch pipelines and then is contained in the liquid separation bag. The weighing sensors are used for obtaining stress changes of the bottoms of the two sides of the subpackaging support, the position of the tray relative to the subpackaging support is fixed, the position of the liquid separation bag relative to the tray is fixed, and the amount of the stock solution subpackaged into the liquid separation bag is calculated through the stress changes; the stock solution split charging device provided by the invention is high in efficiency and good in split charging precision.

Description

Technical Field

[0001] The present invention relates to the technical field of biological liquid medicine sub-packaging, and particularly relates to a stock solution sub-packaging device and a sub-packaging method. Background Art

[0002] In the downstream of the biological pharmaceutical production system, it is necessary to collect, sub-package, freeze, and store the stock solution. The stock solution sub-packaging is mainly carried out by manual or system metering, and the stock solution is sub-packaged into corresponding containers according to the set dose, which is convenient for subsequent selection according to needs.

[0003] Currently, most enterprises adopt the traditional manual sub-packaging method, and a small number adopt sub-packaging devices for sub-packaging. There are the following problems in manual liquid separation: low efficiency, poor liquid separation accuracy, waste of human resources, and high pollution risk. The liquid separation devices used in some of the existing sub-packaging devices can usually only perform liquid separation on one stock solution bag at a time, with a slow liquid separation speed. The liquid volume in the stock solution bag is mainly evaluated by visual inspection experience, and the liquid separation accuracy is not high. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a stock solution sub-packaging device and a sub-packaging method to solve the technical problems existing in the prior art.

[0005] On the one hand, the present invention provides a stock solution sub-packaging device, including a sub-packaging support, a plurality of trays symmetrically arranged on both sides of the sub-packaging support, a main pipeline arranged on the sub-packaging support, and weighing sensors arranged on both sides of the bottom of the sub-packaging support. The trays are used to carry the liquid separation bags to be filled with liquid. The main pipeline is symmetrically provided with branch pipelines communicating with the liquid separation bags on both sides. The main pipeline is communicated with a stock solution storage. Bubble sensors are arranged at both ends of the main pipeline, and the bubble sensors are used to detect the bubbles in the main pipeline. The stock solution to be sub-packaged in the stock solution storage is filled into the liquid separation bags after passing through the main pipeline and the branch pipelines in sequence. The weighing sensors are used to obtain the force changes at the bottoms on both sides of the sub-packaging support. The relative positions of the trays and the sub-packaging support are fixed, and the relative positions of the liquid separation bags and the trays are fixed, so as to calculate the amount of stock solution sub-packaged into the liquid separation bags through the force changes.

[0006] The beneficial effects of the present invention are as follows: The stock solution dispensing device provided by the present invention includes a dispensing support, a number of trays symmetrically arranged on both sides of the dispensing support, a main pipeline arranged on the dispensing support, and weighing sensors arranged on both sides of the bottom of the dispensing support. The trays are used to carry the liquid separation bags to be filled with liquid. Branch pipelines communicating with the liquid separation bags are symmetrically arranged on both sides of the main pipeline; the stock solution to be dispensed passes through the main pipeline and the branch pipelines in sequence and then is filled into the liquid separation bags on both sides, that is, the left and right liquid separation bags can be filled simultaneously, with high efficiency; further, the weighing sensors are used to obtain the force changes at the bottoms on both sides of the dispensing support. The positions of the trays relative to the dispensing support are fixed, and the positions of the liquid separation bags relative to the trays are fixed, so that the centroid of each part remains unchanged. The weights of the dispensed liquids filled into the bags on the left and right sides are calculated through the force changes, and the dispensing accuracy is high, which is suitable for wide promotion.

[0007] Preferably, the dispensing support includes frame frames arranged symmetrically, and a number of bearing plates are arranged at intervals from top to bottom on the frame frames, and the trays are placed on the bearing plates.

[0008] Preferably, positioning shafts are arranged on the end faces of the bearing plates close to the trays, positioning holes adapted to the positioning shafts are arranged on the end faces of the trays close to the bearing plates, and the trays are positioned on the bearing plates through the positioning holes and the positioning shafts, so that the relative positions of the trays and the dispensing support are fixed.

[0009] Preferably, main pipeline valves for controlling the opening and closing of the main pipeline are arranged at both ends of the main pipeline, and branch pipeline valves for controlling the opening and closing of the branch pipelines are arranged at one ends of the branch pipelines close to the main pipeline.

[0010] Preferably, a positioning port is arranged on one side of the tray, and the liquid separation bag is positioned in the tray through the positioning port, so that the relative position of the liquid separation bag and the tray is fixed.

[0011] Preferably, concave handles are arranged on both sides of the tray, pull handles are symmetrically arranged on both sides of the dispensing support, and locking wheels are arranged at the bottom of the stock solution dispensing device.

[0012] The second aspect of the present invention provides a dispensing method based on the above-mentioned stock solution dispensing device. The dispensing method includes: Assembling the main pipeline and the branch pipelines to form a pipeline assembly, installing the pipeline assembly on the dispensing support, and symmetrically placing a number of trays on the dispensing support; Placing liquid separation bags in each tray respectively, and connecting the ends of the branch pipelines with the corresponding liquid separation bags; Opening the main pipeline and closing the branch pipelines, and introducing the stock solution into the main pipeline to discharge the gas in the main pipeline; wherein, a bubble sensor is used to detect the discharge condition of the bubbles in the main pipeline; Read the initial force on the weighing sensor; Fill the liquid separation bags on both sides of the dispensing bracket with the original liquid through the main pipeline and the branch pipelines. Determine the force change according to the real-time force and the initial force of the weighing sensor, and calculate the amount of the original liquid dispensed into the liquid separation bags on both sides according to the force change.

[0013] Preferably, the step of calculating the amount of the original liquid dispensed into the liquid separation bags on both sides according to the force change of the weighing sensor includes: Read the first force and the second force of the left weighing sensor and the right weighing sensor in real time; Obtain the first distance from the left weighing sensor to the centroid of the left liquid separation bag, the second distance from the left weighing sensor to the centroid of the original liquid dispensing device, the third distance from the left weighing sensor to the centroid of the right liquid separation bag, and the fourth distance from the left weighing sensor to the right weighing sensor; Establish a moment balance equation with the weighing sensor as the center, substitute the initial force, the first force, the second force, the first distance, the second distance, the third distance, and the fourth distance into the moment balance equation, and calculate the amount of the original liquid dispensed into the liquid separation bags on both sides.

[0014] Preferably, the expression for the amount of the original liquid dispensed into the liquid separation bags on both sides is: T 左袋 = (T 右 × D1 - T 左 × D3 - T 右 × D3 + T 初 D3 - T 初 × D2) / (D1 - D3) T 右袋 = T 左 + T 右 - T 左袋 - T 初 In the formula, T 左袋 represents the force corresponding to the total amount of the original liquid filled in the left liquid separation bag, T 右袋 represents the force corresponding to the total amount of the original liquid filled in the right liquid separation bag, T 左 represents the first force, T 右 represents the second force, T 初 represents the initial force, and D1, D2, D3, and D4 respectively represent the first distance, the second distance, the third distance, and the fourth distance.

[0015] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0016] Figure 1Schematic structural diagram of the stock solution dispensing device provided in the first embodiment of the present invention; Figure 2 is Figure 1 Schematic structural diagram of the stock solution dispensing device in [the original text] without pipelines and trays arranged; Figure 3 is Figure 1 Schematic structural diagram after the liquid separation bag is connected to the pipeline assembly in [the original text]; Figure 4 is Figure 1 Schematic structural diagram of the liquid separation bag arranged in the tray in [the original text]; Figure 5 is Figure 1 Schematic structural diagram of the tray; Figure 6 is Figure 5 Schematic structural diagram of the other perspective of the tray; Figure 7 Schematic force analysis diagram of the stock solution dispensing device provided by the present invention.

[0017] Explanation of main component symbols: 10, dispensing bracket; 11, tray; 111, positioning hole; 112, positioning port; 113, concave handle; 12, main pipeline; 121, main pipeline valve; 13, weighing sensor; 14, liquid separation bag; 15, branch pipeline; 151, branch pipeline valve; 16, bubble sensor; 17, frame; 18, bearing plate; 181, positioning shaft; 19, handle; 20, locking wheel.

[0018] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific embodiments

[0019] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] Embodiment 1 As Figures 1 to 6 shown, the first embodiment of the present invention provides a stock solution dispensing device. The stock solution dispensing device includes a dispensing bracket 10, a plurality of trays 11 symmetrically arranged on both sides of the dispensing bracket 10, a main pipeline 12 arranged on the dispensing bracket 10, and weighing sensors 13 arranged on both sides of the bottom of the dispensing bracket 10. The trays 11 are used to carry the liquid separation bags 14 to be filled with liquid. Branch pipelines 15 communicating with the liquid separation bags are symmetrically arranged on both sides of the main pipeline 12. The main pipeline 12 communicates with a stock solution storage device (not shown in the figure). Bubble sensors 16 are arranged at both ends of the main pipeline 12. The bubble sensors 16 are used to detect the bubbles in the main pipeline 12. The stock solution to be dispensed in the stock solution storage device is filled into the liquid separation bags 14 after passing through the main pipeline 12 and the branch pipelines 15 in sequence. The weighing sensors 13 are used to obtain the force change at the bottom of both sides of the dispensing bracket. The position of the tray 11 relative to the dispensing bracket 10 is fixed, and the position of the liquid separation bag 14 relative to the tray 11 is fixed, so as to calculate the amount of stock solution filled into the liquid separation bag through the force change.

[0023] Optionally, in this embodiment, five trays 11 are arranged on the left and right sides of the stock solution dispensing device respectively, with a total of ten trays. The main pipeline 12 is arranged at the front middle position of the stock solution dispensing device. Five branch pipelines 15 extending from both the left and right sides of the main pipeline 12 communicate with the liquid separation bags 14. The bottom port of the main pipeline 12 communicates with the stock solution storage device. The stock solution is filled into the liquid separation bags 14 from bottom to top in sequence. Further, an exhaust gas receiving device is connected to the top port of the main pipeline 12 for receiving the internal gas in the pipeline when the main pipeline exhausts. Bubble sensors 16 are arranged at the upper and lower ends of the main pipeline 12. The weighing sensors 13 can be four, which are respectively arranged at the bottom of the dispensing bracket for obtaining the force change at the bottom of both sides of the dispensing bracket. In this embodiment, after the tray is placed on the dispensing bracket, its position relative to the dispensing bracket is fixed. After the liquid separation bag is placed on the tray, its position relative to the tray is fixed, so that the center of mass of the liquid separation bag, the center of mass of the device, etc. will not change, and then the amount of stock solution filled into the liquid separation bag is calculated through the force change.

[0024] In some alternative embodiments, such as Figure 1As shown in the figure, the dispensing support includes symmetrically arranged frame frames 17. A number of bearing plates 18 are provided on the frame frames 17 at intervals from top to bottom. The tray 11 is placed on the bearing plates 18. On the end face of the bearing plate 18 close to the tray 11, there is a positioning shaft 181. On the end face of the tray 11 close to the bearing plate, there is a positioning hole 111 adapted to the positioning shaft 181. That is, there is a positioning shaft on the upper surface of the bearing plate, and a positioning hole on the bottom surface of the tray. After the tray 11 is placed on the bearing plate 18, the tray is positioned on the bearing plate through the positioning hole and the positioning shaft, so that the position of the tray relative to the dispensing support is fixed.

[0025] In some alternative embodiments, as Figure 2 shown, at both ends of the main pipeline 12, there are main pipeline valves 121 for controlling the opening and closing of the main pipeline. At one end of the branch pipeline 15 close to the main pipeline, there is a branch pipeline valve 151 for controlling the opening and closing of the branch pipeline. Optionally, the main pipeline valve 121 and the branch pipeline valve 151 are fixedly arranged on the front end face of the stock solution dispensing device. Further, on one side of the tray 11, there is a positioning opening 112. The liquid separation bag 14 is positioned in the tray through the positioning opening 112, so that the position of the liquid separation bag relative to the tray is fixed. Still further, on both sides of the tray 11, there are concave handles 113. On both sides of the dispensing support 10, there are symmetrically arranged pull handles 19. At the bottom of the stock solution dispensing device, there are locking wheels 20.

[0026] When the stock solution dispensing device provided in this application performs stock solution dispensing, first install the pipeline, tray, and dispensing bag. After the installation and positioning are completed, start the exhaust process. When exhausting, all branch pipeline valves are closed, and the main pipeline valve is opened. The liquid enters from the bottom of the main pipeline, and the gas is discharged through the main pipeline. After the discharge is completed, the main pipeline valve is closed. At this time, the overall weight of the device is read by four weighing sensors and recorded as T 初 , at this time, the main pipeline of the device is filled with liquid, and there is no liquid in the dispensing bag. The device is simplified into a static rigid body. When performing liquid dispensing, when the liquid enters the liquid separation bag through the branch pipeline, the liquid volume in the main pipeline does not change. That is, except for the liquid in the dispensing bag, the T 初 of the entire device does not change. The liquid entering the dispensing bag exerts a dynamic pressure on both sides of the dispensing rack. The force analysis of the device is as Figure 7 shown; by obtaining the forces on the left and right weighing sensors and then based on the moment balance equation, the amount of stock solution dispensed into the liquid separation bag can be calculated in real time. The stock solution dispensing device provided in this application can simultaneously dispense into the left and right liquid separation bags, with high efficiency; by respectively arranging weighing sensors on both sides of the bottom of the dispensing support, the weights of the liquid dispensed into the bags on the left and right sides can be calculated; the dispensing accuracy is high, and it is suitable for large-scale promotion.

[0027] Embodiment 2 This embodiment provides a dispensing method using the stock solution dispensing device of the above-mentioned Embodiment 1, including the following steps: Assemble the main pipeline and branch pipelines to form a pipeline assembly, install the pipeline assembly on the sub-packaging bracket, and symmetrically place a number of trays on the sub-packaging bracket; Place the liquid separation bags in each tray respectively, and connect the ends of the branch pipelines to the corresponding liquid separation bags; Open the main pipeline and close the branch pipelines, and introduce the stock solution into the main pipeline to discharge the gas in the main pipeline; wherein, the bubble sensor is used to detect the discharge of bubbles in the main pipeline; Read the initial force of the device through the weighing sensor; Fill the stock solution into the liquid separation bags on both sides of the sub-packaging bracket through the main pipeline and branch pipelines, determine the force change according to the real-time force and the initial force of the weighing sensor, and calculate the amount of stock solution filled into the liquid separation bags on both sides according to the force change.

[0028] Optionally, the step of calculating the amount of stock solution filled into the liquid separation bags on both sides according to the force change of the weighing sensor includes: Read the first force of the left weighing sensor and the second force of the right weighing sensor in real time; Obtain the first distance from the left weighing sensor to the centroid of the left liquid separation bag, the second distance from the left weighing sensor to the centroid of the stock solution filling device, the third distance from the left weighing sensor to the centroid of the right liquid separation bag, and the fourth distance from the left weighing sensor to the right weighing sensor; Establish a moment balance equation with the weighing sensor as the center, substitute the initial force, the first force, the second force, the first distance, the second distance, the third distance, and the fourth distance into the moment balance equation, and calculate the amount of stock solution filled into the liquid separation bags on both sides.

[0029] Optionally, for the convenience of description, the following definitions are made for some parameters; T 左 represents the sum of the values of the left weighing sensor, which is the first force, T 右 represents the sum of the values of the right weighing sensor, which is the second force; T 左袋 represents the force corresponding to the total amount of stock solution filled into the left liquid separation bag, T 右袋 represents the force corresponding to the total amount of stock solution filled into the right liquid separation bag, D1 represents the distance from the left weighing sensor to the centroid of the left liquid separation bag, the position of the liquid separation bag relative to the tray is fixed, and the centroid will not change; D2 represents the distance from the left weighing sensor to the centroid point of the stock solution filling device, the device is fixed, and the centroid will not change; D3 represents the distance from the left weighing sensor to the centroid of the right liquid separation bag; D4 is the distance from the left weighing sensor to the right weighing sensor.

[0030] Establish a moment balance equation with the left weighing sensor as the core: T 左 +T右 =T 左袋 +T 右袋 +T 初 (1) T 右袋 =T 左 +T 右 -T 左袋 -T 初 (2) According to the moment balance equation, the formula can be established as follows: T 右 ×D4 = T 右袋 ×D3 + T 初 ×D2 + T 左袋 ×D1 (3) T 左袋 = (T 右 ×D4 - T 右袋 ×D3 - T 初 ×D2) / D1 (4) Substitute equation (2) into equation (4) and simplify to get: T 左袋 = (T 右 ×D1 - T 左 ×D3 - T 右 ×D3 + T 初 D3 - T 初 ×D2) / (D1 - D3) (5) T can be obtained according to equation 5 左袋 , and then substitute it into equation 1 to find T 右袋 .

[0031] Furthermore, according to the different filling orders of different liquid separation bags, the first liquid separation bag on the left can be denoted as T 左袋1 , and the first liquid separation bag on the right can be denoted as T 右袋1 ; When starting to fill the second bag on the left and the second bag on the right: T 左袋2 = T 左袋 - T 左袋1 (6) Substitute equation 5 into equation 6 to get: T 左袋2 = (T 右 ×D1 - T 左 ×D3 - T 右 ×D3 + T 初 D3 - T 初 ×D2) / (D1 - D3) - T 左袋1 (7) T 右袋2 = T 右袋 - T 右袋1 (8) And so on, the amount of liquid filled in other liquid separation bags can be calculated.

[0032] It should be noted that the above implementation process is only to illustrate the feasibility of the present application. However, this does not mean that there are only the above several implementation processes for the stock solution dispensing device and the dispensing method of the present application. On the contrary, as long as the stock solution dispensing device and the dispensing method of the present application can be implemented, they can be incorporated into the feasible implementation solutions of the present application. In addition, the structural part of the stock solution dispensing device in the embodiments of the present invention corresponds to the method part for preparing the stock solution dispensing device, and the specific implementation details are the same, so they will not be elaborated here.

[0033] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0034] The above embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the invention patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent of the present invention shall be subject to the appended claims.

Claims

1. A stock solution packaging device, characterized in that: It includes a filling bracket, a plurality of trays symmetrically arranged on both sides of the filling bracket, a main pipeline arranged on the filling bracket, and weighing sensors arranged on both sides of the bottom of the filling bracket. The tray is used to carry a liquid separation bag to be filled with liquid, and branch pipelines connected to the liquid separation bag are symmetrically arranged on both sides of the main pipeline. The main pipeline is connected to a raw liquid storage device, and bubble sensors are arranged at both ends of the main pipeline. The bubble sensors are used to detect bubbles in the main pipeline. The raw liquid to be filled in the raw liquid storage device is loaded into the liquid separation bag after passing through the main pipeline and the branch pipeline in sequence. The weighing sensor is used to obtain the force change at the bottom of both sides of the filling bracket. The relative position of the tray and the filling bracket is fixed, and the relative position of the liquid separation bag and the tray is fixed, so as to calculate the amount of raw liquid filled into the liquid separation bag through the force change.

2. The stock solution dispensing device according to claim 1, characterized in that: The subassembly support comprises a frame which is symmetrically arranged, and a plurality of bearing plates are arranged at intervals from top to bottom of the frame, and the tray is placed on the bearing plates.

3. The stock solution packaging device according to claim 2, characterized in that: A positioning shaft is provided on the end surface of the supporting plate close to the tray, and a positioning hole matched with the positioning shaft is provided on the end surface of the tray close to the supporting plate. The tray is positioned on the supporting plate through the positioning hole and the positioning shaft so that the relative position of the tray and the sub-packaging bracket is fixed.

4. The stock solution packaging device according to claim 1, characterized in that: Main pipeline valves for controlling the switch of the main pipeline are provided at both ends of the main pipeline, and branch pipeline valves for controlling the switch of the branch pipeline are provided at one end of the branch pipeline close to the main pipeline.

5. The stock solution packaging device according to claim 1, characterized in that: A positioning opening is provided on one side of the tray, and the liquid separation bag is positioned in the tray through the positioning opening, so that the relative positions of the liquid separation bag and the tray are fixed.

6. The stock solution packaging device according to claim 1, characterized in that: Inwardly recessed handles are arranged on both sides of the tray, handles are symmetrically arranged on both sides of the dispensing bracket, and locking wheels are arranged at the bottom of the stock liquid dispensing device.

7. A packaging method using the stock solution packaging device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Assembling the main pipeline and the branch pipeline to form a pipeline assembly, installing the pipeline assembly on a sub-assembly bracket, and symmetrically placing a plurality of trays on the sub-assembly bracket; Place a liquid separation bag in each tray, and connect the end of the branch pipe to the corresponding liquid separation bag; Open the main pipeline, close the branch pipeline, and introduce the stock liquid into the main pipeline to discharge the gas in the main pipeline; wherein the bubble sensor is used to detect the discharge of bubbles in the main pipeline; Read the initial force of the device through the weighing sensor; The stock liquid is loaded into the liquid separation bags on both sides of the dispensing bracket through the main pipeline and the branch pipeline, the force change is determined according to the real-time force and the initial force of the weighing sensor, and the amount of stock liquid dispensed into the liquid separation bags on both sides is calculated according to the force change.

8. The packaging method according to claim 7, characterized in that: The step of calculating the amount of the original liquid to be dispensed into the liquid dispensing bags on both sides according to the force change of the weighing sensor comprises: Read the first force and the second force of the left weighing sensor and the right weighing sensor in real time; Obtain a first distance from the left weighing sensor to the mass center of the left liquid dispensing bag, a second distance from the left weighing sensor to the mass center of the stock liquid dispensing device, a third distance from the left weighing sensor to the mass center of the right liquid dispensing bag, and a fourth distance from the left weighing sensor to the right weighing sensor; A torque balance equation is established with the weighing sensor as the center, and the initial force, the first force, the second force, the first distance, the second distance, the third distance, and the fourth distance are substituted into the torque balance equation to calculate the amount of original liquid dispensed into the liquid bags on both sides.

9. The packaging method according to claim 8, characterized in that: The expression of the original liquid amount dispensed into the two side liquid dispensing bags is: T 左袋 =(T 右 ×D1-T 左 ×D3-T 右 ×D3+T 初 D3-T 初 ×D2) / (D1-D3) T 右袋 = T 左 +T 右 -T 左袋 -T 初 Where, T 左袋 It represents the force corresponding to the total amount of original liquid loaded into the left liquid bag, T 右袋 It represents the force corresponding to the total amount of original liquid loaded into the right side dispensing bag, T 左 Indicates the first force, T 右 Represents the second force, T 初 represents the initial force, and D1, D2, D3, and D4 represent the first distance, the second distance, the third distance, and the fourth distance, respectively.

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