An additive filling control method, controller and additive filling device

Abstract

The application discloses an additive filling control method, a controller and an additive filling device. The control method comprises the following steps: calculating the actual injection weight of the additive according to the difference between the first weighing weight and the second weighing weight; calculating the calibration weighing parameter according to the preset weighing parameter, the set calibration weight and the actual injection weight; calculating the second rotation amount of the filling pump according to the calibration weighing parameter and the set injection weight of the next reagent; and controlling the rotation number of the additive filling pump according to the second rotation amount, so that the additive filling pump extracts the additive from the intermediate container and injects the additive into the target container. The additive filling control method adopts the decrement method for measurement, and avoids the weighing error caused by the increment method. Since the rotation amount of the additive filling pump is proportional to the actual injection weight, the accurate injection amount can be obtained by controlling the rotation number of the additive filling pump.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of auxiliary agent filling, in particular to an auxiliary agent filling control method, a controller and an auxiliary agent filling device. BACKGROUND

[0002] In the process of dyeing cloth by a dyeing device, an auxiliary agent needs to be injected into a dye cup. In a traditional auxiliary agent filling method, the auxiliary agent is added by an incremental method, for example, the auxiliary agent is injected by a dropwise adding method, the actually dropped auxiliary agent is received by a small cup, and the actual weight is obtained according to the weight of the liquid increased in the small cup. However, when the auxiliary agent is dropped, due to the tension effect of the solution, a drop or half drop of the auxiliary agent may be left at the tip of the discharge pipe, which may seriously increase the error, because the calibration accuracy is originally in the milligram level, and the weight of the half drop of the auxiliary agent has exceeded the error allowable range. SUMMARY

[0003] Embodiments of the present application are provided to solve the technical problem of large error of the current auxiliary agent adding device, and provide an auxiliary agent filling control method, a controller and an auxiliary agent filling device.

[0004] To solve the above technical problem, on one hand, an auxiliary agent filling control method is provided for controlling the rotation number of an auxiliary agent filling pump, the auxiliary agent filling pump is arranged on an auxiliary agent filling pipe, two ends of the auxiliary agent filling pipe are respectively connected with a transfer container and a target container, and the transfer container is placed on a weighing device; the control method comprises the following steps:

[0005] According to a preset weighing parameter and a set calibration weight, a first rotation amount of the auxiliary agent filling pump is calculated;

[0006] A first weighing weight of the transfer container is obtained, the first weighing weight is the weight of the transfer container before the auxiliary agent filling pump is started;

[0007] According to the first rotation amount, the rotation number of the auxiliary agent filling pump is controlled, so that the auxiliary agent filling pump extracts the auxiliary agent from the transfer container and injects the auxiliary agent into the target container;

[0008] A second weighing weight of the transfer container is obtained, the second weighing weight is the weight of the transfer container after the auxiliary agent filling pump extracts the auxiliary agent from the transfer container and injects the auxiliary agent into the target container;

[0009] According to the difference between the first weighing weight and the second weighing weight, an actual injection weight of the auxiliary agent is calculated;

[0010] According to the preset weighing parameter, the set calibration weight and the actual injection weight, a calibration weighing parameter is calculated;

[0011] calculating a second rotation quantity of the dosing pump according to the calibration weighing parameter and a set dosing weight of the next reagent;

[0012] controlling the rotation circle number of the auxiliary dosing pump according to the second rotation quantity, so that the auxiliary dosing pump extracts auxiliary agent from the intermediate container and injects the auxiliary agent into the target container.

[0013] In some embodiments, after calculating the calibration weighing parameter according to the preset weighing parameter, the set calibration weight and the actual injection weight, the method further comprises:

[0014] judging whether the calibration weighing parameter and the preset weighing parameter are within a preset deviation range;

[0015] if yes, calculating a second rotation quantity of the dosing pump according to the calculated calibration weighing parameter and a set dosing weight of the next reagent;

[0016] if no, returning to calculating a first rotation quantity of the auxiliary dosing pump according to the preset weighing parameter and the set calibration weight.

[0017] In some embodiments, calculating the first rotation quantity of the auxiliary dosing pump according to the preset weighing parameter and the set calibration weight comprises:

[0018] calculating the first rotation quantity of the auxiliary dosing pump according to a formula y1=a1*b1+c, wherein y1 is the first rotation quantity, a1 is the preset weighing parameter, b1 is the set calibration weight, and c is a constant;

[0019] and / or, calculating a second rotation quantity of the dosing pump according to the calibration weighing parameter and a set dosing weight of the next reagent comprises:

[0020] calculating the first rotation quantity of the auxiliary dosing pump according to a formula y2=a2*b2+c, wherein y2 is the second rotation quantity, a2 is the calibration weighing parameter, b1 is the set dosing weight, and c is a constant.

[0021] In some embodiments, calculating the actual injection weight of the auxiliary agent according to the difference between the first weighing weight and the second weighing weight comprises:

[0022] calculating the actual injection weight of the auxiliary agent according to a formula g3=g1-g2, wherein g1 is the first weighing weight, g2 is the second weighing weight, and g3 is the actual injection weight;

[0023] and / or, calculating the calibration weighing parameter according to the preset weighing parameter, the set calibration weight and the actual injection weight comprises:

[0024] According to a formula a2=a1*b1 / g3, wherein a1 is a preset weighing parameter, b1 is a set calibration weight, g3 is an actual injection weight, and a2 is a calibration weighing parameter.

[0025] In another aspect, the present application also provides a controller for controlling the number of rotations of an additive injection pump, wherein the additive injection pump is arranged on an additive injection pipe, and two ends of the additive injection pipe are respectively connected to a transfer container and a target container, and the transfer container is placed on the weighing device, and the controller comprises:

[0026] a first calculation module for calculating a first rotation amount of the additive injection pump according to a preset weighing parameter and a set calibration weight;

[0027] a first acquisition module for acquiring a first weighing weight of the transfer container, wherein the first weighing weight is the weight of the transfer container before the additive injection pump is started;

[0028] a first control module for controlling the number of rotations of the additive injection pump according to the first rotation amount, so that the additive injection pump extracts additives from the transfer container and injects the additives into the target container;

[0029] a second acquisition module for acquiring a second weighing weight of the transfer container, wherein the second weighing weight is the weight of the transfer container after the additive injection pump extracts additives from the transfer container and injects the additives into the target container;

[0030] a second calculation module for calculating an actual injection weight of the additives according to the difference between the first weighing weight and the second weighing weight;

[0031] a third calculation module for calculating a calibration weighing parameter according to the preset weighing parameter, the set calibration weight, and the actual injection weight;

[0032] a fourth calculation module for calculating a second rotation amount of the injection pump according to the calibration weighing parameter and a set injection weight of the next injection reagent;

[0033] a second control module for controlling the number of rotations of the additive injection pump according to the second rotation amount, so that the additive injection pump extracts additives from the transfer container and injects the additives into the target container.

[0034] In some embodiments, the controller further comprises:

[0035] a judgment module for judging whether the calibration weighing parameter and the preset weighing parameter are within a preset deviation range;

[0036] If yes, the second rotation amount of the injection pump is calculated according to the calculated calibration weighing parameter and the set injection weight of the next injection reagent.

[0037] If no, return to the first rotation amount of the additive filling pump according to the preset weighing parameter and the set calibration weight.

[0038] In another aspect, the embodiment of the present application further provides an additive filling device, comprising:

[0039] A transfer container;

[0040] A weighing device, wherein the transfer container is placed on the weighing device;

[0041] The controller, wherein the weighing device is connected to the controller;

[0042] A target container, which is connected to the transfer container through an additive filling pipe, wherein the additive filling pipe is provided with an additive filling pump, and the additive filling pump is electrically connected to the controller.

[0043] In some embodiments, the additive filling device further comprises:

[0044] An additive storage container for storing additives, wherein the transfer container is connected to the additive storage container through an additive delivery pipe, and the additive delivery pipe is provided with an additive delivery pump to pump the additives in the additive storage container into the transfer container.

[0045] In some embodiments, the transfer container is further provided with a clean water filling pipe and a sewage pipe.

[0046] In some embodiments, the input end of the additive filling pipe extends below the liquid level of the transfer container.

[0047] The embodiment of the present application has the following beneficial effects:

[0048] The additive filling control method calculates the actual injection weight of the additives according to the difference between the first weighing weight and the second weighing weight, that is, adopts the subtraction method for measurement, thereby avoiding the weighing error caused by the addition method (for example, the dropwise addition method);

[0049] The additive filling control method calculates the second rotation amount of the additive filling pump by using the calibration weighing parameter, and since the rotation amount of the additive filling pump is proportional to the actual injection weight, the precise injection amount can be obtained by controlling the number of rotations of the additive filling pump. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 is a first embodiment flow chart of an additive filling control method of the present application;

[0051] Figure 2 is a second embodiment structure schematic diagram of a controller of the present application;

[0052] Figure 3 Figure 3 is a schematic view of a third embodiment of the additive filling device according to the present application. DETAILED DESCRIPTION

[0053] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. It should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer" and the like appearing in the present application or about to appear are based on the drawings of the present application and are not specific limitations of the present application.

[0054] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] In the present application, the description involving "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0056] An embodiment of the present application, as shown in Figure 1 An additive filling control method is provided for controlling the number of rotations of an additive filling pump, the additive filling pump being arranged on an additive filling pipe, both ends of the additive filling pipe being connected to a transfer container and a target container respectively, the transfer container being placed on the weighing device.

[0057] The control method comprises:

[0058] S100, calculating a first rotation amount of the additive filling pump according to a preset weighing parameter and a set calibration weight;

[0059] S200, obtaining a first weighing weight of the transfer container, the first weighing weight being the weight of the transfer container before the additive filling pump is started;

[0060] S300, controlling the number of rotations of the auxiliary agent filling pump according to the first rotation amount, so that the auxiliary agent filling pump extracts auxiliary agent from the intermediate container and injects the auxiliary agent into the target container;

[0061] S400, obtaining a second weighing weight of the intermediate container, the second weighing weight being a weight of the intermediate container after the auxiliary agent filling pump extracts auxiliary agent from the intermediate container and injects the auxiliary agent into the target container;

[0062] S500, calculating an actual injection weight of the auxiliary agent according to a difference between the first weighing weight and the second weighing weight;

[0063] S600, calculating a calibration weighing parameter according to the preset weighing parameter, the set calibration weight and the actual injection weight;

[0064] S800, calculating a second rotation amount of the filling pump according to the calibration weighing parameter and a set injection weight of the reagent in the next injection;

[0065] S900, controlling the number of rotations of the auxiliary agent filling pump according to the second rotation amount, so that the auxiliary agent filling pump extracts auxiliary agent from the intermediate container and injects the auxiliary agent into the target container.

[0066] The auxiliary agent injection control method adopts a subtraction method for metering, avoids weighing errors caused by an addition method (for example, a dropwise addition method), calculates a second rotation amount of the auxiliary agent filling pump by using the calibration weighing parameter, and obtains accurate injection amounts by controlling the number of rotations of the auxiliary agent filling pump, because the rotation amount of the auxiliary agent filling pump is directly proportional to the actual injection weight.

[0067] The auxiliary agent filling pump in the application, for example, a peristaltic pump, is a kind of pump that transports and meters liquid by extruding a pump tube. When the pump tube is extruded, the pump tube is abraded, and therefore needs to be calibrated frequently, otherwise, the error range will be exceeded. Calibration is relatively labor-consuming, and therefore the application can be calibrated automatically in spare time, for example, steps S100 to S600 can be automatically calibrated in the interval time when the pump is not used, which greatly saves labor and operation time, and the calibration speed is much faster than manual weighing calibration.

[0068] In some embodiments, after step S600, the method further comprises:

[0069] S700, determining whether the calibration weighing parameter and the preset weighing parameter are within a preset deviation range;

[0070] If yes, step S800 is performed;

[0071] If no, step S100 is returned.

[0072] Specifically, the deviation range can be set according to process requirements. Generally, it is 1% or 1.5% of the set calibration weight. By adding step S700, it is confirmed whether the calculated calibration weighing parameter is normal, if normal, the next step is entered, if the deviation is large, it is returned to step S100 to recalculate the actual injection weight of the additive, and then a new calibration weighing parameter is calculated according to the new actual injection weight, until the calibration weighing parameter and the preset weighing parameter are within the preset deviation range, and the remaining steps are performed to realize automatic error correction.

[0073] In some embodiments, step S100 comprises:

[0074] The first rotation amount of the additive injection pump is calculated according to the formula y1=a1*b1+c, wherein y1 is the first rotation amount, a1 is the preset weighing parameter, b1 is the set calibration weight, and c is a constant;

[0075] In some embodiments, step S800 comprises:

[0076] The first rotation amount of the additive injection pump is calculated according to the formula y2=a2*b2+c, wherein y2 is the second rotation amount, a2 is the calibration weighing parameter, b1 is the set injection weight, and c is a constant.

[0077] Specifically, the constant c is generally 0 to 20 mg.

[0078] In some embodiments, step S500 comprises:

[0079] The actual injection weight of the additive is calculated according to the formula g3=g1-g2, wherein g1 is the first weighing weight, g2 is the second weighing weight, and g3 is the actual injection weight.

[0080] In some embodiments, step S600 comprises:

[0081] The calibration weighing parameter a2 is calculated according to the formula a2=a1*b1 / g3, wherein a1 is the preset weighing parameter, b1 is the set calibration weight, g3 is the actual injection weight, and a2 is the calibration weighing parameter.

[0082] On the other hand, the embodiments of the present application also provide a controller 400 for controlling the rotation number of an additive injection pump, wherein the additive injection pump is arranged on an additive injection pipe, two ends of the additive injection pipe are respectively connected to a transfer container and a target container, the transfer container is placed on a weighing device, and the controller comprises:

[0083] A first calculation module 410 is configured to calculate a first rotation amount of the additive injection pump according to a preset weighing parameter and a set calibration weight;

[0084] The first acquisition module 420 is configured to acquire a first weighing weight of the intermediate container, the first weighing weight being a weight of the intermediate container before the auxiliary agent filling pump is started;

[0085] The first control module 430 is configured to control a number of rotation circles of the auxiliary agent filling pump according to the first rotation amount, so that the auxiliary agent filling pump extracts auxiliary agent from the intermediate container and injects the auxiliary agent into the target container;

[0086] The second acquisition module 440 is configured to acquire a second weighing weight of the intermediate container, the second weighing weight being a weight of the intermediate container after the auxiliary agent filling pump extracts auxiliary agent from the intermediate container and injects the auxiliary agent into the target container;

[0087] The second calculation module 450 is configured to calculate an actual injection weight of the auxiliary agent according to a difference between the first weighing weight and the second weighing weight.

[0088] The third calculation module 460 is configured to calculate a calibration weighing parameter according to the preset weighing parameter, the set calibration weight and the actual injection weight.

[0089] The fourth calculation module 470 is configured to calculate a second rotation amount of the filling pump according to the calibration weighing parameter and a set injection weight of the reagent to be filled next time.

[0090] The second control module 480 is configured to control the number of rotation circles of the auxiliary agent filling pump according to the second rotation amount, so that the auxiliary agent filling pump extracts auxiliary agent from the intermediate container and injects the auxiliary agent into the target container.

[0091] In some embodiments, the controller 400 further comprises:

[0092] The judgment module 490 is configured to judge whether the calibration weighing parameter and the preset weighing parameter are within a preset deviation range.

[0093] If yes, the second rotation amount of the filling pump is calculated according to the calculated calibration weighing parameter and the set injection weight of the reagent to be filled next time.

[0094] If no, the first rotation amount of the auxiliary agent filling pump is calculated according to the preset weighing parameter and the set calibration weight.

[0095] Another embodiment of the present application, as shown in Figure 3 The auxiliary agent filling device further comprises an intermediate container 200, a weighing device 300, a controller 400 and a target container 500. The specific structure of the controller 400 is referred to the above-mentioned embodiments. Since the auxiliary agent filling device adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described here.

[0096] The transfer container 200 is placed on the weighing device 300. The weighing device 300 is connected to the controller 400. The target container 500 is connected to the transfer container 200 through the additive filling pipe 220, and the additive filling pipe 220 is provided with an additive filling pump 600, which is electrically connected to the controller 400.

[0097] The present application greatly reduces the equipment cost by adding the transfer container 200. The accuracy of the present application is in the milligram level. The cost of the same accuracy weighing device varies several times according to the weighing range. The present application only needs to use a weighing device with a very small weighing range to achieve the desired effect. For example, a weighing device with a maximum weighing capacity of 3000g is normally required, but the present application only needs a weighing device with a maximum weighing capacity of 300g.

[0098] In some embodiments, the additive filling device further comprises an additive storage container 100 for storing additives, and the transfer container 200 is connected to the additive storage container 100 through an additive delivery pipe 210, and the additive delivery pipe 210 is provided with an additive delivery pump to pump the additives in the additive storage container 100 into the transfer container 200. Further, the capacity of the additive storage container 100 is greater than the capacity of the transfer container 200. The additive storage container 100 can store the additives required for multiple dyeing, reducing the number of additive additions.

[0099] It should be noted that in another embodiment of the present application, the additives can also be stored in the transfer container 200 without using the additive storage container 100, i.e. the additives are directly stored in the transfer container 200.

[0100] In some embodiments, since the additives used by the present device are generally high-concentration salt alkali, when use is suspended in a low-humidity environment, the salt alkali is easily precipitated due to water evaporation, causing the pump pipe to be blocked and causing equipment failure. Therefore, the transfer container 200 is further provided with a clean water filling pipe 230 and a sewage pipe 240. When use is suspended, the device can automatically empty the additives and then inject clean water, and automatically clean the additive pump pipe with clean water to prevent salt alkali from precipitating and blocking the pipe.

[0101] In some embodiments, the input end of the additive filling pipe 220 extends below the liquid level of the transfer container 200, thereby avoiding situations such as a drop or half-drop of additives remaining at the tip of the discharge pipe in a dropwise addition method. The accuracy is originally in the milligram level, and a half-drop or less than a half-drop exceeds the allowable error range, thereby avoiding large addition errors.

[0102] In some embodiments, the additive filling pump 600 is a peristaltic pump. The peristaltic pump is a volumetric metering device, and the rotation amount is proportional to the actual filling weight, so that accurate filling amount can be obtained by controlling the number of revolutions.

[0103] In some embodiments, the controller 400 is a PLC controller 400 that can calculate and store parameters through a special algorithm.

[0104] The above is the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the principles of the present application, can make several improvements and refinements, these improvements and refinements are also considered the scope of protection of the present application.

Claims

1. A method for controlling the dispensing of additives, used to control the number of rotations of an additive dispensing pump, wherein the additive dispensing pump is mounted on an additive dispensing pipe, and both ends of the additive dispensing pipe are respectively connected to a transfer container and a target container, the transfer container being placed on a weighing device; characterized in that, The control method includes: The first rotation of the additive dispensing pump is calculated based on the preset weighing parameters and the set calibration weight. Obtain the first weighing weight of the transfer container, which is the weight of the transfer container before the auxiliary agent dispensing pump is started; The number of rotations of the additive dispensing pump is controlled according to the first rotation amount, so that the additive dispensing pump draws additives from the transfer container and injects them into the target container; Obtain a second weighing weight of the transfer container, the second weighing weight being the weight of the transfer container after the auxiliary agent injection pump draws the auxiliary agent from the transfer container and injects it into the target container; The actual injected weight of the additive is calculated based on the difference between the first weighing weight and the second weighing weight. The calibration weighing parameters are calculated based on the preset weighing parameters, the set calibration weight, and the actual injected weight. The second rotation amount of the dispensing pump is calculated based on the calibration weighing parameters and the set dispensing amount for the next reagent dispensing. The number of rotations of the additive dispensing pump is controlled according to the second rotation amount, so that the additive dispensing pump draws additives from the transfer container and injects them into the target container.

2. The additive dosing control method as described in claim 1, characterized in that, After calculating the calibration weighing parameters based on the preset weighing parameters, the set calibration weight, and the actual injected weight, the method further includes: Determine whether the calibration weighing parameters and the preset weighing parameters are within the preset deviation range; If so, then the second rotation amount of the dispensing pump is calculated based on the calculated calibration weighing parameters and the set dispensing amount for the next reagent dispensing. If not, return to the step of calculating the first rotation of the additive dispensing pump based on the preset weighing parameters and the set calibration weight.

3. The additive dosing control method as described in claim 1 or 2, characterized in that, The step of calculating the first rotation of the additive dispensing pump based on preset weighing parameters and a set calibration weight includes: The first rotation amount of the additive dispensing pump is calculated according to the formula y1=a1*b1+c, where y1 is the first rotation amount, a1 is the preset weighing parameter, b1 is the set calibration weight, and c is a constant. And / or, the step of calculating the second rotation amount of the dispensing pump based on the calibration weighing parameters and the set dispensing weight for the next reagent dispensing includes: The first rotation amount of the additive dispensing pump is calculated according to the formula y2=a2*b2+c, where y2 is the second rotation amount, a2 is the calibration weighing parameter, b1 is the set dispensing weight, and c is a constant.

4. The method for controlling the addition of adjuvants as described in claim 1 or 2, characterized in that, The step of calculating the actual injected weight of the additive based on the difference between the first weighed weight and the second weighed weight includes: The actual injected weight of the additive is calculated according to the formula g3 = g1 - g2, where g1 is the first weighing weight, g2 is the second weighing weight, and g3 is the actual injected weight. And / or, the step of calculating the calibration weighing parameters based on the preset weighing parameters, the set calibration weight, and the actual injection weight includes: According to the formula a2=a1*b1 / g3, where a1 is the preset weighing parameter, b1 is the set calibration weight, g3 is the actual injected weight, and a2 is the calibration weighing parameter.

5. A controller for controlling the number of rotations of an additive dispensing pump, the additive dispensing pump being mounted on an additive dispensing pipe, the two ends of the additive dispensing pipe being connected to a transfer container and a target container respectively, the transfer container being placed on a weighing device, characterized in that, The controller includes: The first calculation module is used to calculate the first rotation amount of the additive dispensing pump based on the preset weighing parameters and the set calibration weight; The first acquisition module is used to acquire the first weighing weight of the transfer container, wherein the first weighing weight is the weight of the transfer container before the auxiliary agent injection pump is started. The first control module controls the number of rotations of the additive dispensing pump according to the first rotation amount, so that the additive dispensing pump draws additives from the transfer container and injects them into the target container; The second acquisition module is used to acquire the second weighing weight of the transfer container, which is the weight of the transfer container after the auxiliary agent injection pump extracts the auxiliary agent from the transfer container and injects it into the target container; The second calculation module is used to calculate the actual injected weight of the additive based on the difference between the first weighed weight and the second weighed weight. The third calculation module is used to calculate the calibration weighing parameters based on the preset weighing parameters, the set calibration weight, and the actual injected weight. The fourth calculation module is used to calculate the second rotation amount of the dispensing pump based on the calibration weighing parameters and the set dispensing amount of the reagent for the next dispensing. The second control module is used to control the number of rotations of the additive dispensing pump according to the second rotation amount, so that the additive dispensing pump draws additives from the transfer container and injects them into the target container.

6. The controller as described in claim 5, characterized in that, Also includes: The judgment module is used to determine whether the calibration weighing parameters and the preset weighing parameters are within the preset deviation range; If so, then the second rotation amount of the dispensing pump is calculated based on the calculated calibration weighing parameters and the set dispensing amount for the next reagent dispensing. If not, return to the step of calculating the first rotation of the additive dispensing pump based on the preset weighing parameters and the set calibration weight.

7. An additive dispensing device, characterized in that, include: Transit container; A weighing device, on which the transfer container is placed; The controller as described in claim 5 or 6, wherein the weighing device is connected to the controller; The target container is connected to the transfer container via an additive filling pipe, which is equipped with an additive filling pump that is electrically connected to the controller.

8. The additive dispensing device as described in claim 7, characterized in that, Also includes: An auxiliary agent storage container is used to store auxiliary agents; a transfer container is connected to the auxiliary agent storage container via an auxiliary agent delivery pipe, and an auxiliary agent delivery pump is provided on the auxiliary agent delivery pipe to pump the auxiliary agents in the auxiliary agent storage container into the transfer container.

9. The additive dispensing device as described in claim 7, characterized in that, The transfer container is also equipped with a clean water filling pipe and a sewage discharge pipe.

10. The additive dispensing device as described in claim 7, characterized in that, The input end of the additive filling tube extends below the liquid surface of the transfer container.

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