CN211121536U - Automatic flow adaptation control system of electronic belt scale - Google Patents
Automatic flow adaptation control system of electronic belt scale Download PDFInfo
- Publication number
- CN211121536U CN211121536U CN202020145248.8U CN202020145248U CN211121536U CN 211121536 U CN211121536 U CN 211121536U CN 202020145248 U CN202020145248 U CN 202020145248U CN 211121536 U CN211121536 U CN 211121536U
- Authority
- CN
- China
- Prior art keywords
- belt
- scale
- electronic
- speed
- real
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Conveyors (AREA)
Abstract
The utility model provides an automatic adaptation control system of electronic belt conveyor scale flow, include: an inlet material belt conveyor, an electronic belt scale and an outlet material belt conveyor; the inlet material belt conveyor conveys the front-end processed materials to the electronic belt scale, and the processed materials are weighed and then transmitted to the outlet material belt conveyor at the rear end; the electronic belt scale comprises a scale body belt, a control system, a belt driving motor and a belt speed sensor, wherein the belt driving motor drives the scale body belt under the control of the control system, and the belt speed sensor detects the real-time speed of the scale body belt; the controller adjusts the control of the belt driving motor according to the comparison result of the real-time speed of the scale body belt detected by the belt speed sensor and a preset reference belt speed control value so as to change the driving of the scale body belt by the belt driving motor.
Description
Technical Field
The utility model relates to a flow measurement control field, concretely relates to automatic adaptation control system of electronic belt scale flow.
Background
In the industrial processing production of bulk materials, an electronic belt scale is often used for weighing the materials. The electronic belt scale is divided into two operation modes of measurement and control, and under the condition that the front end of the electronic belt scale is not provided with a material caching device (such as a feeding machine and a measuring pipe), the electronic belt scale can only operate in the measurement mode and only measures the weight of materials passing through.
The application is applied to a specific process flow, such as weight measurement after tobacco baking, the instantaneous material flow fluctuation is relatively large, and three aspects of influences can be generated in production:
1. the scale cannot meet the stable flow control requirement at the rear end;
2. under the condition of large fluctuation of the incoming material flow, the metering precision of the electronic scale is influenced;
3. if the device is operated in a control mode, the target value of the control flow is difficult to accurately set, and the hidden danger of conveying and blocking exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem to have above-mentioned defect among the prior art, provide an automatic adaptation control system of electronic belt scale flow, detect the operation to the speed numerical value of balance body belt to this reference foundation as adjustment flow control target value. The system is applied without additionally adding or transforming hardware facilities, and the problems in the prior art can be solved by further logically operating and correlating the detection data of the system.
According to the utility model discloses, an automatic adaptation control system of electronic belt conveyor scale flow is provided includes: an inlet material belt conveyor, an electronic belt scale and an outlet material belt conveyor; the inlet material belt conveyor conveys the front-end processed materials to the electronic belt scale, and the processed materials are weighed and then transmitted to the outlet material belt conveyor at the rear end; the electronic belt scale comprises a scale body belt, a control system, a belt driving motor and a belt speed sensor, wherein the belt driving motor drives the scale body belt under the control of the control system, and the belt speed sensor detects the real-time speed of the scale body belt; the controller adjusts the control of the belt driving motor according to the comparison result of the real-time speed of the scale body belt detected by the belt speed sensor and a preset reference belt speed control value so as to change the driving of the scale body belt by the belt driving motor.
In a preferred embodiment, the controller causes the belt drive motor to reduce the drive to the scale belt when the real time speed value minus the reference belt speed control value exceeds a first predetermined threshold.
In a preferred embodiment, the controller causes the belt drive motor to increase the drive to the scale belt when the reference belt speed control value minus the real time speed value exceeds a second predetermined threshold.
In a preferred embodiment, the controller does not change the drive of the scale body belt by the belt drive motor when the real-time speed value minus the reference belt speed control value does not exceed a first predetermined threshold value and the reference belt speed control value minus the real-time speed value does not exceed a second predetermined threshold value.
In a preferred embodiment, the controller performs a comparative offset operation on the real-time speed value and the reference belt speed control value.
In a further preferred embodiment, the controller utilizes a PID calculation to compare the deviation of the real-time speed value to a reference belt speed control value.
In a further preferred embodiment, the controller performs a comparison deviation calculation of the real-time speed value and the reference belt speed control value using a step-wise difference comparison calculation.
In a preferred embodiment, the inlet material belt conveyor conveys the front end process material at a constant speed to the electronic belt scale.
In a preferred embodiment, the automatic flow adaptation control system of the electronic belt scale is used for a material caching device which is not arranged at the front end of the electronic belt scale.
In a preferred embodiment, the electronic belt scale flow automatic adaptation control system is used for tobacco processing.
The control of the material flow is realized through monitoring and operation of the belt speed value of the electronic belt scale, and the method can be applied to the metering control of the electronic belt scale of a production line without a material caching device at the front end, wherein the belt speed of the electronic belt scale is used as a judgment basis for adjusting the flow control target value, the automatic adaptation of the flow control target value and the actual material conveying condition is realized, and the electronic belt scale runs in a flow control mode to realize stable flow control.
Drawings
A more complete understanding of the present invention, and the attendant advantages and features thereof, will be more readily understood by reference to the following detailed description when considered in conjunction with the accompanying drawings wherein:
fig. 1 schematically shows a structure diagram of an electronic belt scale flow automatic adaptation control system according to a preferred embodiment of the present invention.
Fig. 2 schematically shows a control flow chart of the automatic flow adaptation control system of the electronic belt scale according to the preferred embodiment of the present invention.
Description of the drawings: 1-inlet material belt conveyor; 2-electronic belt weigher; 3-an outlet material belt conveyor; 4-scale body belt; 5-a control system; 6-belt drive motor; 7-belt speed sensor.
It should be noted that the attached drawings are used for illustrating the present invention, and not for limiting the present invention. It is noted that the drawings representing structures may not be drawn to scale. Also, in the drawings, the same or similar elements are denoted by the same or similar reference numerals.
Detailed Description
In order to make the disclosure of the present invention clearer and easier to understand, the following detailed description of the present invention is made with reference to the accompanying drawings and specific embodiments.
Fig. 1 schematically shows a structure diagram of an electronic belt scale flow automatic adaptation control system according to a preferred embodiment of the present invention.
As shown in fig. 1, the system for automatically adapting the flow of an electronic belt scale according to a preferred embodiment of the present invention comprises: an inlet material belt conveyor 1, an electronic belt scale 2 and an outlet material belt conveyor 3.
The inlet material belt conveyor 1 (generally at a constant speed) conveys the front-end processed material to the electronic belt scale 2, and the weighed material is transmitted to the outlet material belt conveyor 3 at the rear end so as to convey the material to subsequent processing equipment.
Wherein, electronic belt scale 2 includes scale body belt 4, control system 5, belt driving motor 6 and belt velocity sensor 7, and belt driving motor 6 drives scale body belt 4 under control system 5's control to belt velocity sensor 7 detects the real-time speed of scale body belt 4.
The controller adjusts the control of the belt driving motor 6 according to the comparison result of the real-time speed of the scale body belt 4 detected by the belt speed sensor 7 and a preset reference belt speed control value so as to change the driving of the scale body belt 4 by the belt driving motor 6.
Specifically, it is preferable that, for example, the controller causes the belt drive motor 6 to reduce the drive of the scale body belt 4 when the real-time speed value minus the reference belt speed control value exceeds a first predetermined threshold value; the controller causes the belt drive motor 6 to increase drive to the scale belt 4 when the reference belt speed control value minus the real time speed value exceeds a second predetermined threshold.
Moreover, it is preferable that the controller does not change the driving of the scale body belt 4 by the belt driving motor 6 when the real-time velocity value minus the reference belt velocity control value does not exceed the first predetermined threshold value and the reference belt velocity control value minus the real-time velocity value does not exceed the second predetermined threshold value.
If the belt speed is too fast, the target flow value is judged to be too high, the system reduces the target flow value, and otherwise, the target flow value is increased. The system sets a regulation dead zone, and does not adjust the target flow value within a certain interval when the belt speed is close to the target speed.
The basic principle of electronic belt weigher is that the instantaneous flow value and the accumulated value are obtained by integral value operation of the weight signal of the weight sensor and the speed signal of the conveying belt. If the electronic belt scale needs to realize constant flow control of materials, the weighing system must restrain the influence caused by material weight fluctuation by continuously adjusting the speed of the belt according to the deviation condition of the instantaneous flow value and the set flow value. So the belt speed can be used as the reference of the variation of the incoming material weight.
An ideal belt speed control value (reference belt speed control value) is set in the control system, and the real-time belt speed is compared with the set value to calculate the deviation. The operation mode may be PID (proportional integral differential) calculation, or may be stepped difference comparison calculation, and the matching degree of the flow control target value is determined, and the obtained calculated value is used as the basis for adjusting the flow control target value. The automatic adaptation of the flow control target value is realized by monitoring the belt speed in the whole production process and adjusting the flow control target value in real time, and the electronic belt scale can operate in a control mode.
In production environments with the standard deviation value of the material flow of 130-180, the standard deviation value of the flow can be reduced to 20-30 by applying the control method. The utility model discloses an on original hardware basis, carry out flow control's adaptation optimization through modifying control program, saved the equipment transformation cost, it is high to have the reliability, characteristics that implementation cycle is short.
Fig. 2 schematically shows a control flow chart of the automatic flow adaptation control system of the electronic belt scale according to the preferred embodiment of the present invention.
In the initial stage of production start, the control system operates in a first material processing mode, the electronic belt scale controls and measures with a fixed target flow value, and the flow value only needs to prevent the inlet of the electronic belt scale from being blocked.
And after the flow enters a relatively stable state, the control system enters a flow adaptation regulation mode. The system monitors the speed of the scale body belt 4 in real time, judges whether the set target value of the flow is appropriate or not through the comparison operation of the speed of the scale body belt and the target value of the belt speed, and further adjusts the target value of the flow control. If the belt speed is too fast, the target flow value is judged to be too high, the system reduces the target flow value, and otherwise, the target flow value is increased. The system sets a regulation dead zone, and does not adjust the target flow value within a certain interval when the belt speed is close to the target speed. Through the logic control, the electronic belt scale has the flow control automatic adaptation function, and the electronic belt scale is operated in a control mode, so that the stability of material flow is improved, and the next processing procedure is guaranteed.
In the actual application process, relevant parameters such as the material head section processing time, the material head section set flow, the belt speed control target value, the comparison operation response parameter, the regulation dead zone, the set value regulation frequency and amplitude and the like need to be regulated according to the actual application environment.
The utility model discloses an electronic belt scale realizes that it moves with flow control mode under its front end does not have the environment of being equipped with material buffer memory device to the constant flow control system that control target flow can automatic adaptation. The control system identifies the surplus degree of the material conveyed from the front end by detecting the belt speed value of the scale body, and then adjusts the set flow of the scale to adapt, thereby achieving the purpose of stabilizing the flow control. The control system can be realized only by writing a control system program, and has the advantages of low cost, strong practicability and wide application field.
Specifically, for example, the utility model discloses an automatic adaptation control system of electronic belt conveyor scale flow can be applied to electronic belt conveyor scale front end and do not have and be equipped with material buffer memory device for the flow control in the bulk material industrial processing production process that has certain requirement again to material transport flow stability. Moreover, for example, the utility model discloses an electronic belt conveyor scale flow automatic adaptation control system is used for tobacco processing.
It should be noted that the terms "first", "second", "third", and the like in the description are used for distinguishing various components, elements, steps, and the like in the description, and are not used for indicating a logical relationship or a sequential relationship between the various components, elements, steps, and the like, unless otherwise specified.
It is to be understood that while the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the invention to the disclosed embodiment. To anyone skilled in the art, without departing from the scope of the present invention, the technical solution disclosed above can be used to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
Claims (10)
1. The utility model provides an automatic adaptation control system of electronic belt conveyor scale flow which characterized in that includes: an inlet material belt conveyor, an electronic belt scale and an outlet material belt conveyor; the inlet material belt conveyor conveys the front-end processed materials to the electronic belt scale, and the processed materials are weighed and then transmitted to the outlet material belt conveyor at the rear end; the electronic belt scale comprises a scale body belt, a control system, a belt driving motor and a belt speed sensor, wherein the belt driving motor drives the scale body belt under the control of the control system, and the belt speed sensor detects the real-time speed of the scale body belt; the controller adjusts the control of the belt driving motor according to the comparison result of the real-time speed of the scale body belt detected by the belt speed sensor and a preset reference belt speed control value so as to change the driving of the scale body belt by the belt driving motor.
2. The electronic belt scale flow auto-adaptive control system according to claim 1, wherein the controller causes the belt drive motor to reduce the drive to the scale body belt when the real-time speed value minus the reference belt speed control value exceeds a first predetermined threshold.
3. The system of claim 2 wherein the controller causes the belt drive motor to increase drive to the scale body belt when the reference belt speed control minus the real time speed value exceeds a second predetermined threshold.
4. The system of claim 3 wherein the controller does not change the drive of the belt drive motor to the scale body belt when the real-time velocity minus the reference belt velocity does not exceed a first predetermined threshold and the real-time velocity minus the reference belt velocity does not exceed a second predetermined threshold.
5. The system of claim 1, wherein the controller performs a comparison deviation operation between the real-time speed value and the reference belt speed control value.
6. The system of claim 5, wherein the controller utilizes PID to calculate the deviation between the real-time speed value and the reference belt speed control value.
7. The system of claim 5 wherein the controller performs a differential comparison between the real-time speed value and the reference belt speed control value using a step-wise difference comparison.
8. The system of claim 1 or 2, wherein the inlet material belt conveyor conveys the front end processed material to the electronic belt scale at a constant speed.
9. The system of claim 1 or 2, wherein the system is used for the electronic belt scale without a material buffer at the front end.
10. The electronic belt scale flow automatic adaptation control system of claim 1 or 2, characterized in that the electronic belt scale flow automatic adaptation control system is used for tobacco processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020145248.8U CN211121536U (en) | 2020-01-22 | 2020-01-22 | Automatic flow adaptation control system of electronic belt scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020145248.8U CN211121536U (en) | 2020-01-22 | 2020-01-22 | Automatic flow adaptation control system of electronic belt scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211121536U true CN211121536U (en) | 2020-07-28 |
Family
ID=71706658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020145248.8U Active CN211121536U (en) | 2020-01-22 | 2020-01-22 | Automatic flow adaptation control system of electronic belt scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211121536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103043A (en) * | 2020-01-22 | 2020-05-05 | 广西中烟工业有限责任公司 | Automatic flow adaptation control system of electronic belt scale |
-
2020
- 2020-01-22 CN CN202020145248.8U patent/CN211121536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103043A (en) * | 2020-01-22 | 2020-05-05 | 广西中烟工业有限责任公司 | Automatic flow adaptation control system of electronic belt scale |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62147097A (en) | Method and device for adjusting turbocompressor for avoidingserging | |
| CN103787052B (en) | A kind of even feeding device and even method of feeding thereof | |
| CN211121536U (en) | Automatic flow adaptation control system of electronic belt scale | |
| WO2023155598A1 (en) | Transfer point chute blockage detection system based on dynamic material measurement | |
| US20180250715A1 (en) | Article rejecting system | |
| US4977526A (en) | Method and system for controlling a differential dosing scale | |
| CN105728082A (en) | Wheat dampening control equipment | |
| US4574849A (en) | Apparatus and method for controlling supply of articles | |
| CN117408641B (en) | Pressure sensor production line processing operation supervision system based on data analysis | |
| CN107840115A (en) | A kind of coal charge charging gear and delivery rate control method | |
| CN106743720A (en) | For the weight-loss type drawing-in device and feeding method of powder material continuous charging | |
| CN111103043A (en) | Automatic flow adaptation control system of electronic belt scale | |
| CN203682515U (en) | Even feeding device | |
| CN212923627U (en) | One-card loading system for cement clinker | |
| CN114950635B (en) | Feeding method of high-pressure roller mill capable of automatically stabilizing material level | |
| US5152354A (en) | Weigh feeding apparatus for pourable substances | |
| CN103892459A (en) | Device for weighing dry matters in tobacco materials and technical process control method | |
| JP2022517503A (en) | Equipment and methods for reducing environmental pollution at material movement points | |
| CN205526974U (en) | Control device and application device's machine of controlling | |
| CN111537046B (en) | Method for automatically correcting speed of belt scale on line | |
| CN114719945B (en) | Flow control precision self-adapting method, system and computer medium for controlling electronic belt scale | |
| CN104200119B (en) | Coal dust conveying capacity soft instrument based on Roots blower blast | |
| CN112082172A (en) | Coal pulverizing and feeding control system for boiler of thermal power plant and control method thereof | |
| US7002082B2 (en) | Combinational weighing device | |
| US8735746B2 (en) | Weighing apparatus and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |