CN112015135A - Automatic control system and control method for dosing device - Google Patents
Automatic control system and control method for dosing device Download PDFInfo
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- CN112015135A CN112015135A CN202011035190.2A CN202011035190A CN112015135A CN 112015135 A CN112015135 A CN 112015135A CN 202011035190 A CN202011035190 A CN 202011035190A CN 112015135 A CN112015135 A CN 112015135A
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- powder
- medicine
- dosing
- medicament
- liquid
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1132—High speed bus between plc and plc or programming device
Abstract
The invention provides an automatic control system of a dosing device, which further comprises a PLC (programmable logic controller), a touch screen HMI (human machine interface), a powder supply frequency converter, a powder supply motor, a plurality of stirrers, a water inlet electromagnetic valve, a flow meter, a telescopic rod, a material level switch, a heating device, a liquid level meter, a medicine temperature sensor and a vibrator.
Description
Technical Field
The invention relates to the technical field of control systems, in particular to an automatic control system of a dosing device and a control mode of the automatic control system.
Background
Due to the continuous improvement and maturity of the medicine adding device technology, the medicine adding device is widely applied to various industry fields, the requirement of users on an automatic control system of the medicine adding device is higher and higher, the control circuit connected through a hard wire in the past has the defects of complex circuit, low reliability and the like, the current actual use requirement cannot be met, and the automatic control system of the medicine adding device also has higher requirements for improving the use efficiency of the medicine adding device. And the programmable logic controller PLC and the human-machine operation interface HMI are used for realizing the automatic control of the dosing device.
Disclosure of Invention
The invention aims to provide an automatic control system of a dosing device, which solves the defects of the prior art.
The invention is realized by the following technical scheme:
an automatic control system of a dosing device comprises a dosing hopper for storing medicinal powder, a mixing chamber for mixing clean water and the medicinal powder, a medicament liquid storage tank, a PLC (programmable logic controller), a touch screen HMI (human machine interface), a powder supply frequency converter, a powder supply motor, a plurality of stirrers, a water inlet electromagnetic valve, a flowmeter, a telescopic rod, a material level switch, a heating device, a medicament temperature sensor, a vibrator and a liquid level meter, wherein the input end of the PLC is respectively connected with the input ends of the touch screen HMI, the powder supply frequency converter, the plurality of stirrers, the water inlet electromagnetic valve, the telescopic rod, the heating device and the vibrator, the input end of the PLC is respectively connected with the output ends of the liquid level meter, the flowmeter, the material level switch and the medicament temperature sensor, and the input end of the powder supply motor is connected with the output end;
the output end of the powder supply motor is connected with a dosing screw, and the dosing screw is used for adding the medicinal powder in the dosing hopper into the mixing chamber;
the PLC is used for executing a logic control program to realize automatic medicine dispensing;
the powder supply frequency converter is used for controlling the rotating speed of the powder supply motor, so that the rotating speed of the dosing screw is controlled, and the speed of adding the medicinal powder into the mixing chamber is further controlled;
the flowmeter is used for detecting the water inlet flow of a mixing chamber of the dosing device in real time;
the touch screen HMI is used for monitoring various operation parameters and operation states of the dosing device on line and inquiring various operation fault information;
the touch screen HMI inquires various operation fault codes to indicate that each stirrer is overheated, a powder supply frequency converter is in fault, a dosing hopper is empty, and the liquid level in the medicament liquid storage tank is in fault setting;
the stirrers are used for mixing, dissolving and curing the medicinal powder and the clear water in the mixing chamber;
the mixing chamber comprises three chambers which are communicated with each other, a plurality of stirrers are respectively arranged in each chamber for mixing, dissolving and curing, and the medicinal powder and the clean water flow into the dissolving chamber and the curing chamber from the mixing chamber in sequence and then flow into the medicament liquid storage tank.
The water inlet electromagnetic valve is used for injecting clean water into a mixing chamber of the dosing device;
the telescopic rod, the material level switch, the heating device, the medicine temperature sensor and the vibrator are all arranged on the medicine feeding hopper;
the telescopic rod is used for plugging the dosing spiral outlet to prevent the medicinal powder from being wetted and condensed into blocks;
the material level switch is used for detecting the amount of the medicine powder in the medicine feeding hopper;
the heating device is used for heating the medicine powder in the medicine feeding hopper to prevent the medicine powder from being wetted and condensed into blocks;
the medicine temperature sensor is used for detecting the temperature of the medicine powder in the medicine feeding hopper in real time;
the vibrator is used for vibrating the dosing hopper to prevent the medicine powder from attaching to the wall of the dosing hopper, so that the medicine is fully utilized;
the liquid level meter is used for monitoring the liquid level height in the medicament liquid storage tank in real time.
A control method of an automatic control system of a dosing device comprises the following steps:
s1, a dosing device is started, the concentration of the medicament liquid needing to be configured is set through a touch screen HMI, a PLC starts a stirrer, a material level switch detects the amount of medicament powder in a medicament feeding hopper, and a liquid level meter detects the liquid level height in a medicament liquid storage tank.
S2, the PLC controller is opened or is in standby treatment according to the detection result of the material level switch and the liquid level meter, and the method comprises the following steps: if the material level switch is normal and the liquid level of the medicament liquid is lower than the preset threshold value, the step S3 is executed; if the level switch is abnormal or the liquid level of the liquid medicine is higher than the preset threshold, the process goes to step S4.
S3, the PLC sequentially opens the water inlet electromagnetic valve and the powder supply motor, meanwhile, the PLC controls the rotating speed of the powder supply motor through the powder supply frequency converter in real time according to the preset concentration of the medicament liquid and the water inlet flow detected by the flowmeter, and in the preparation process of the medicament liquid, if the material level switch is abnormal or the liquid level of the medicament liquid is higher than a preset threshold value, the step S4 is carried out.
And S4, the PLC closes the water inlet electromagnetic valve and the powder supply motor, and if the material level switch is normal and the liquid level of the medicament liquid is lower than a preset threshold value, the step S3 is executed.
The starting of the medicine adding device in the step S1 further comprises the following steps:
s101, start medicine temperature sensor and detect the powder temperature in the hopper of dosing, the PLC controller opens or closes processing to heating device according to medicine temperature sensor's testing result, includes: if the temperature of the medicinal powder is less than or equal to the lower limit of the preset medicinal powder temperature, starting a heating device; and if the temperature of the medicinal powder is higher than the upper limit of the preset medicinal powder temperature, closing the heating device.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the automatic control system for the dosing device, full-automatic dosing can be achieved through one-key operation on the human-machine operation interface HMI, the medicine proportioning concentration is accurate, automatic control of the dosing device is achieved, the operation is simple, and the reliability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
Example 1
As shown in fig. 1, the automatic control system of a dosing device of the present invention comprises a dosing hopper for storing a powder, a mixing chamber for mixing clean water and the powder, a liquid agent storage tank, a PLC controller, a touch screen HMI, a powder supply frequency converter, a powder supply motor, a plurality of mixers, a water inlet solenoid valve, a flow meter, a telescopic link, a material level switch, a heating device, a drug temperature sensor, a vibrator and a level meter, wherein an input end of the PLC controller is respectively connected with input ends of the touch screen HMI, the powder supply frequency converter, the plurality of mixers, the water inlet solenoid valve, the telescopic link, the heating device and the vibrator, an input end of the PLC controller is respectively connected with output ends of the liquid level meter, the flow meter, the material level switch and the drug temperature sensor, and an input end of the powder supply motor is connected with an output end of the powder supply frequency;
the output end of the powder supply motor is connected with a dosing screw, and the dosing screw is used for adding the medicinal powder in the dosing hopper into the mixing chamber;
the PLC is used for executing a logic control program to realize automatic medicine dispensing;
the powder supply frequency converter is used for controlling the rotating speed of the powder supply motor, so that the rotating speed of the dosing screw is controlled, and the speed of adding the medicinal powder into the mixing chamber is further controlled;
the flowmeter is used for detecting the water inlet flow of a mixing chamber of the dosing device in real time;
the touch screen HMI is used for monitoring various operation parameters and operation states of the dosing device on line and inquiring various operation fault information;
the touch screen HMI inquires various operation fault codes to indicate that each stirrer is overheated, a powder supply frequency converter is in fault, a dosing hopper is empty, and the liquid level in the medicament liquid storage tank is in fault setting;
the stirrers are used for mixing, dissolving and curing the medicinal powder and the clear water in the mixing chamber;
the mixing chamber comprises three chambers which are communicated with each other, a plurality of stirrers are respectively arranged in each chamber for mixing, dissolving and curing, and the medicinal powder and the clean water flow into the dissolving chamber and the curing chamber from the mixing chamber in sequence and then flow into the medicament liquid storage tank.
The water inlet electromagnetic valve is used for injecting clean water into a mixing chamber of the dosing device;
the telescopic rod, the material level switch, the heating device, the medicine temperature sensor and the vibrator are all arranged on the medicine feeding hopper;
the telescopic rod is used for plugging the dosing spiral outlet to prevent the medicinal powder from being wetted and condensed into blocks;
the material level switch is used for detecting the amount of the medicine powder in the medicine feeding hopper;
the heating device is used for heating the medicine powder in the medicine feeding hopper to prevent the medicine powder from being wetted and condensed into blocks;
the medicine temperature sensor is used for detecting the temperature of the medicine powder in the medicine feeding hopper in real time;
the vibrator is used for vibrating the dosing hopper to prevent the medicine powder from attaching to the wall of the dosing hopper, so that the medicine is fully utilized;
the liquid level meter is used for monitoring the liquid level height in the medicament liquid storage tank in real time.
Example 2
Based on embodiment 1, a control method of an automatic control system of a dosing device comprises the following steps:
s1, a dosing device is started, the concentration of the medicament liquid needing to be configured is set through a touch screen HMI, a PLC starts a stirrer, a material level switch detects the amount of medicament powder in a medicament feeding hopper, and a liquid level meter detects the liquid level height in a medicament liquid storage tank.
S2, the PLC controller is opened or is in standby treatment according to the detection result of the material level switch and the liquid level meter, and the method comprises the following steps: if the material level switch is normal and the liquid level of the medicament liquid is lower than the preset threshold value, the step S3 is executed; if the level switch is abnormal or the liquid level of the liquid medicine is higher than the preset threshold, the process goes to step S4.
S3, the PLC sequentially opens the water inlet electromagnetic valve and the powder supply motor, meanwhile, the PLC controls the rotating speed of the powder supply motor through the powder supply frequency converter in real time according to the preset concentration of the medicament liquid and the water inlet flow detected by the flowmeter, and in the preparation process of the medicament liquid, if the material level switch is abnormal or the liquid level of the medicament liquid is higher than a preset threshold value, the step S4 is carried out.
And S4, the PLC closes the water inlet electromagnetic valve and the powder supply motor, and if the material level switch is normal and the liquid level of the medicament liquid is lower than a preset threshold value, the step S3 is executed.
The starting of the medicine adding device in the step S1 further comprises the following steps:
s101, start medicine temperature sensor and detect the powder temperature in the hopper of dosing, the PLC controller opens or closes processing to heating device according to medicine temperature sensor's testing result, includes: if the temperature of the medicinal powder is less than or equal to the lower limit of the preset medicinal powder temperature, starting a heating device; and if the temperature of the medicinal powder is higher than the upper limit of the preset medicinal powder temperature, closing the heating device.
According to the automatic control system for the dosing device, full-automatic dosing can be achieved through one-key operation on the human-machine operation interface HMI, the medicine proportioning concentration is accurate, automatic control of the dosing device is achieved, the operation is simple, and the reliability is high.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a charge device automatic control system, includes the mixing chamber, the medicament liquid storage jar that are used for saving the hopper of dosing of powder, mixed clear water and powder, the hopper setting of dosing lies in one side of mixing chamber, medicament liquid storage jar sets up the opposite side that lies in the mixing chamber, its characterized in that still includes PLC controller, touch-sensitive screen HMI, supplies the powder converter, supplies powder motor, a plurality of agitator, the solenoid valve of intaking, flowmeter, telescopic link, material level switch, heating device, level gauge, medicine temperature sensor and vibrator, the input of PLC controller is connected with the input of touch-sensitive screen HMI, supplies powder converter, a plurality of agitator, the solenoid valve of intaking, telescopic link, heating device and vibrator respectively, the input of PLC controller is connected with the output of level gauge, flowmeter, material level switch and medicine temperature sensor respectively, the input end of the powder supply motor is connected with the output end of the powder supply frequency converter;
the output end of the powder supply motor is connected with a dosing screw;
the PLC is used for executing a logic control program;
the flowmeter is used for detecting the water inlet flow of a mixing chamber of the dosing device in real time;
the touch screen HMI is used for monitoring various operation parameters and operation states of the dosing device on line and inquiring various operation fault information;
the stirrers are used for mixing, dissolving and curing the medicinal powder and the clear water in the mixing chamber;
the water inlet electromagnetic valve is used for injecting clean water into a mixing chamber of the dosing device;
the telescopic rod, the material level switch, the heating device, the medicine temperature sensor and the vibrator are all arranged on the medicine feeding hopper;
the telescopic rod is used for plugging the dosing spiral outlet;
the material level switch is used for detecting the amount of the medicine powder in the medicine feeding hopper;
the heating device is used for heating the medicine powder in the medicine feeding hopper;
the medicine temperature sensor is used for detecting the temperature of the medicine powder in the medicine feeding hopper in real time;
the vibrator is used for vibrating the dosing hopper;
the liquid level meter is used for monitoring the liquid level height in the medicament liquid storage tank in real time.
2. The control method of the automatic control system of the medicine adding device according to any one of the claims 1, characterized by comprising the following steps:
s1, a dosing device is started, the concentration of the medicament liquid needing to be configured is set through a touch screen HMI, a PLC starts a stirrer, a material level switch detects the amount of medicament powder in a medicament feeding hopper, and a liquid level meter detects the liquid level height in a medicament liquid storage tank.
S2. the PLC controller is opened or is waited for and is handled according to the testing result of material level switch and level gauge, includes: if the material level switch is normal and the liquid level of the medicament liquid is lower than the preset threshold value, the step S3 is executed; if the level switch is abnormal or the liquid level of the liquid medicine is higher than the preset threshold, the process goes to step S4.
S3, the PLC controller sequentially opens the water inlet electromagnetic valve and the powder supply motor, simultaneously, the PLC controller controls the rotating speed of the powder supply motor in real time through the powder supply frequency converter according to the preset concentration of the medicament liquid and the water inlet flow detected by the flow meter, and in the preparation process of the medicament liquid, if the material level switch is abnormal or the liquid level of the medicament liquid is higher than a preset threshold value, the step S4 is carried out.
And 5, S4, closing the water inlet electromagnetic valve and the powder supply motor by the PLC, and if the material level switch is normal and the liquid level of the medicament liquid is lower than a preset threshold value, entering the step S3.
6. The method of claim 2, wherein the step of activating the applicator in step S1 further comprises the steps of:
s101, start medicine temperature sensor and detect the powder temperature in the hopper of dosing, the PLC controller opens or closes processing to heating device according to medicine temperature sensor's testing result, includes: if the temperature of the medicinal powder is less than or equal to the lower limit of the preset medicinal powder temperature, starting a heating device; and if the temperature of the medicinal powder is higher than the upper limit of the preset medicinal powder temperature, closing the heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035190.2A CN112015135A (en) | 2020-09-27 | 2020-09-27 | Automatic control system and control method for dosing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035190.2A CN112015135A (en) | 2020-09-27 | 2020-09-27 | Automatic control system and control method for dosing device |
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| CN112015135A true CN112015135A (en) | 2020-12-01 |
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| CN202011035190.2A Pending CN112015135A (en) | 2020-09-27 | 2020-09-27 | Automatic control system and control method for dosing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114115188A (en) * | 2021-11-23 | 2022-03-01 | 江苏海事职业技术学院 | Multifunctional automation control experiment system |
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- 2020-09-27 CN CN202011035190.2A patent/CN112015135A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114115188A (en) * | 2021-11-23 | 2022-03-01 | 江苏海事职业技术学院 | Multifunctional automation control experiment system |
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