CN103660036B - The control method that feeds intake of dry-mixed mortar production line, device and feeding system - Google Patents
The control method that feeds intake of dry-mixed mortar production line, device and feeding system Download PDFInfo
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- CN103660036B CN103660036B CN201310667373.XA CN201310667373A CN103660036B CN 103660036 B CN103660036 B CN 103660036B CN 201310667373 A CN201310667373 A CN 201310667373A CN 103660036 B CN103660036 B CN 103660036B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/02—Controlling the operation of the mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
Abstract
The invention provides a kind of control method that feeds intake of dry-mixed mortar production line, device and feeding system.Feed intake control method, comprising: obtain weight of material signal; Obtain vibration interference signal; According to vibration interference signal, filtering is carried out to obtain actual weight of material to weight of material signal; Discharging speed is controlled to control actual load according to the change of actual weight of material.The present invention gathers one or more vibration interference signals that dry-mixed mortar production line is subject to, such as, this vibration interference signal can be come to obtain the detection of weighing hopper, and utilize this vibration interference signal to actual acquisition to weight of material signal carry out filtering, thus the larger difficult problem of error in dipping that measuring equipment in the steel construction building of dry-mixed mortar production line causes because of vibration interference that vibratory sieve and mixer etc. produce can be solved very well, meet the requirement of trace mineral supplement high-precision measuring.
Description
Technical field
The present invention relates to weight metering field, more specifically, relate to a kind of control method that feeds intake of dry-mixed mortar production line, device and feeding system.
Background technology
At present, the trace mineral supplement (mainly instigating the specialist additive of consumption between 300 ~ 5000g as cellulose ether, rubber powder etc.) of most domestic dry-mixed mortar production line is all adopt artificial pre-weighing and Manual material feeding mode.As shown in Figure 1, during Manual material feeding, needing in each mixing cycle, all needing the lid by manually opening aggregate bin 20, drop into the good parcel additive of pre-weighing in mixer 21 after, then by the cover closing of aggregate bin 20.But, in the case of fig. 1, fixed personnel must be equipped with and carry out pre-weighing and feed intake.The mixing cycle that general mixer is preset is about 3min, and namely Manual material feeding frequency is about 20 times/h, and therefore hand labor intensity is comparatively large, and also can with occurring dust pollution in the process of feeding intake, harmful health and contaminated environment.
Fig. 2 is the additive automatic gauge feeding system 22 configured in certain external dry-mixed mortar production line.This system adopts superposition metering method, and structure is comparatively complicated, and the integrated artistic of equipment requires high, and cost is very expensive, and the sensitivity of sensor is up to 1/12000, and its price is more than ten times of ordinary sensors; This metering system is high to the balancing boom such as sensor and butterfly valve requirement on devices, and this equipment is applicable to the additive measures range of below 70kg, and its metering minimum resolution can reach 5g.But this system exists following shortcoming: (1) is expensive, for the trace mineral supplement of use amount in 300 ~ 5000g scope, its measuring accuracy does not possess good advantage yet; (2) the existing vibratory sieve of the steel construction of dry-mixed mortar production line, has the equipment that the vibration interference such as mixer are very large again, can cause larger interference to the sensor signal of high-precision measuring system.
Summary of the invention
The present invention aim to provide a kind of throw in precision high, can the control method that feed intake of dry-mixed mortar production line of anti-vibration interference, device and feeding system.
For solving the problems of the technologies described above, according to a first aspect of the invention, provide a kind of control method that feeds intake of dry-mixed mortar production line, comprising: obtain weight of material signal; Obtain vibration interference signal; According to vibration interference signal, filtering is carried out to obtain actual weight of material to weight of material signal; Discharging speed is controlled to control actual load according to the change of actual weight of material.
Further, carry out filtering according to vibration interference signal to weight of material signal to comprise to obtain actual weight of material: in vibration interference signal is in the wave filter thesaurus prestored, search the filtering algorithm with the waveform characteristic matching of vibration interference signal; Filtering algorithm is utilized to carry out filtering to obtain actual weight of material to weight of material signal.
Further, store multiple filtering algorithm in advance in wave filter thesaurus, multiple filtering algorithm corresponds to any combination of various sources and/or various sources.
Further, control discharging speed according to the change of actual weight of material to comprise: control weighing hopper with First Speed discharging; Obtain actual load; Calculate the difference of actual load and predetermined load; When difference is less than or equal to the first setting value, control weighing hopper to be less than the second speed discharging of First Speed, until actual load equals predetermined load.
Further, also comprise after controlling discharging speed before obtaining weight of material signal or according to the change of actual weight of material: when the weight corresponding to weight of material signal is less than or equal to predetermined feed supplement weight, to weighing hopper feed supplement, until the actual weight of material in weighing hopper reaches the second predetermined value.
Further, control method also comprises: obtain the noise under specific environment; Extract the characteristic of noise; Characteristic is kept in noise storehouse; Set up the mapping relations between the characteristic in noise storehouse and the various filtering algorithms in wave filter thesaurus.
According to a second aspect of the invention, provide a kind of feeding control device of dry-mixed mortar production line, comprising: weight signal acquisition module, for obtaining weight of material signal; Interfering signal acquisition module, for obtaining vibration interference signal; Actual weight computing module, for carrying out filtering to obtain actual weight of material according to vibration interference signal to weight of material signal; Discharging speed control module, for controlling discharging speed to control actual load according to the change of actual weight of material.
Further, actual weight computing module comprises: filtering algorithm acquisition module, for searching the filtering algorithm with the waveform characteristic matching of vibration interference signal according to vibration interference signal in the wave filter thesaurus prestored; Computing module, carries out filtering to obtain actual weight of material for utilizing filtering algorithm to weight of material signal.
Further, store multiple filtering algorithm in advance in wave filter thesaurus, multiple filtering algorithm corresponds to any combination of various sources and/or various sources.
Further, discharging speed control module comprises: the first control module, for controlling weighing hopper with First Speed discharging; Load acquisition module, for obtaining actual load; Difference calculating module, for calculating the difference of actual load and predetermined load; Second control module, for when difference is less than or equal to the first setting value, controls weighing hopper to be less than the second speed discharging of First Speed, until actual load equals predetermined load.
Further, feeding control device also comprises: control of additive raw material module, for when the weight corresponding to weight of material signal is less than or equal to predetermined feed supplement weight, to weighing hopper feed supplement, until the actual weight of material in weighing hopper reaches the second predetermined value.
According to a third aspect of the present invention, provide a kind of feeding system of dry-mixed mortar production line, comprising: weighing hopper; Drawing mechanism, its entrance is corresponding with the outlet of weighing hopper to be arranged; First sensor, for gathering weight of material signal; Second sensor, for detecting vibration interference signal; Controller, is connected with first sensor and the second sensor, for carrying out filtering to obtain weight of material according to vibration interference signal to weight of material signal, and controls drawing mechanism according to weight of material.
Further, controller searches the filtering algorithm with the waveform characteristic matching of vibration interference signal according to vibration interference signal in the wave filter thesaurus prestored, and utilizes filtering algorithm to carry out filtering to obtain weight of material to weight of material signal.
Further, store multiple filtering algorithm in advance in wave filter thesaurus, multiple filtering algorithm corresponds to any combination of various sources and/or various sources.
The present invention gathers one or more vibration interference signals that dry-mixed mortar production line is subject to, such as, this vibration interference signal can be come to obtain the detection of weighing hopper, and utilize this vibration interference signal to actual acquisition to weight of material signal carry out filtering, thus the larger difficult problem of error in dipping that measuring equipment in the steel construction building of dry-mixed mortar production line causes because of vibration interference that vibratory sieve and mixer etc. produce can be solved very well, meet the requirement of trace mineral supplement high-precision measuring.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates dry-mixed mortar production line Manual material feeding device of the prior art;
Fig. 2 diagrammatically illustrates certain state's external additive metering system schematic diagram of the prior art;
Fig. 3 diagrammatically illustrates the flow chart of the control method that feeds intake of the dry-mixed mortar production line in the present invention;
Fig. 4 diagrammatically illustrates the module map of the feeding control device of the dry-mixed mortar production line in the present invention;
Fig. 5 diagrammatically illustrates the front view of the dry-mixed mortar production line in the present invention;
Fig. 6 diagrammatically illustrates the top view of Fig. 5;
Fig. 7 diagrammatically illustrates the partial enlarged drawing of the second sensor;
Fig. 8 diagrammatically illustrates the internal structure schematic diagram of conveying worm; And
Fig. 9 diagrammatically illustrates the electric control theory figure of the feeding system of the dry-mixed mortar production line in the present invention.
Reference numeral in figure: 1, weighing hopper; 2, drawing mechanism; 3, first sensor; 4, the second sensor; 5, controller; 6, reductor; 7, motor; 9, paddle; 10, frequency converter; 11, host computer; 12, storage bin; 13, valving; 14, horizon adjustable bearing; 15, weighting platform base; 16, blow vent; 17, charging aperture; 18, cover plate; 19, bucket body; 20, aggregate bin; 21, mixer; 22, additive automatic gauge feeding system.
Detailed description of the invention
Below embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As a first aspect of the present invention, please refer to Fig. 3, provide a kind of control method that feeds intake of dry-mixed mortar production line, comprising: obtain weight of material signal; Obtain vibration interference signal; According to vibration interference signal, filtering is carried out to obtain actual weight of material to weight of material signal; Discharging speed is controlled to control actual load according to the change of actual weight of material.
The present invention gathers one or more vibration interference signals that dry-mixed mortar production line is subject to, such as, this vibration interference signal can be come to obtain the detection of weighing hopper, and utilize this vibration interference signal to actual acquisition to weight of material signal carry out filtering, thus the larger difficult problem of error in dipping that measuring equipment in the steel construction building of dry-mixed mortar production line causes because of vibration interference that vibratory sieve and mixer etc. produce can be solved very well, meet the requirement of trace mineral supplement high-precision measuring.
The present invention is adapted to the active damping formula occasion of trace mineral supplement high-precision measuring demand in dry-mixed mortar production line completely, can be used for the automatic gauge of trace mineral supplement and feeds intake.Further, the present invention also has simple, lower-cost feature, is easy to realize Automatic Control, and has been successfully applied in some dry-mixed mortar production line domestic.
Preferably, carry out filtering according to vibration interference signal to weight of material signal to comprise to obtain actual weight of material: in the wave filter thesaurus prestored, search the filtering algorithm with the waveform characteristic matching of vibration interference signal according to vibration interference signal; Filtering algorithm is utilized to carry out filtering to obtain actual weight of material to weight of material signal.Preferably, store multiple filtering algorithm in advance in wave filter thesaurus, multiple filtering algorithm corresponds to any combination of various sources and/or various sources.Such as, weighing hopper may be subject to the vibration interference signal of the multiple noise sources around it, such as, and stirring host, vibrating motor and vibratory sieve etc.At a time, the effect of wherein one or more noise sources can be subject to.
The present invention can prestore the vibration interference signal of each possible noise source, or the signal after the vibration interference Signal averaging of possible multiple noise sources, and proposes corresponding filtering algorithm for often kind of dissimilar noise source.These filtering algorithms are stored in advance in wave filter thesaurus.After the vibration interference signal suffered by a certain moment being detected, can analyze these vibration interference signals, such as, carry out frequency-domain analysis etc., then in wave filter thesaurus, find the filtering algorithm matched with its wave character.Like this, filtering algorithm for different noise source just can be utilized the noise filtering in weight of material signal, obtain precision weight of material more accurately.
By the mode of waveform characteristic matching, the noise that the various vibration sources under same environment (such as dry-mixed mortar production line is fixedly mounted in a certain position determined usually) produce promptly can be found, and exactly by its filtering.
Especially, this control method also comprises: obtain the noise under specific environment; Extract the characteristic of noise; Characteristic is kept in noise storehouse; Set up the mapping relations between the characteristic in noise storehouse and the various filtering algorithms in wave filter thesaurus.In the middle of use procedure, when the noise in environment changes, the characteristic of new noise can be extracted, and new characteristic is kept in noise storehouse, thus can automatically stored in various noise characteristic data in noise storehouse.Meanwhile, these characteristics are matched with it, the filtering algorithm be stored in wave filter thesaurus sets up mapping relations, improve the computational efficiency of system in later stage use procedure, make system have fast response time, the advantage that signal transacting real-time is high.
Such as, when the vibration performance change of noise source, such as, new noise source is had to add, or there is the combination not yet considered in the past in existing noise source, or noise source to use after a period of time the vibration characteristics change etc. of himself, method in the present invention automatically can also record and preserve the feature of these new vibration interference signals, and can for the relation between the feature of these new vibration interference signals and actual weight of material, mapping relations between vibration interference signal and filtering algorithm are revised, to make the present invention, there is certain self study, adaptive ability.
Preferably, control discharging speed according to the change of actual weight of material to comprise: control weighing hopper with First Speed discharging; Obtain actual load; Calculate the difference of actual load and predetermined load; When difference is less than or equal to the first setting value, control weighing hopper to be less than the second speed discharging of First Speed, until actual load equals predetermined load.Also just say, the process of whole discharging is divided into two stages, and first stage is thick metering phase, and second is smart metering phase.In thick metering phase, with higher First Speed discharging, until when actual load equals predetermined load (such as, when reaching 99% of predetermined load), automatically switch to smart metering phase.In smart metering phase, discharging speed (delivery rate) is comparatively slow, therefore, can approach predetermined load better.When the weight reduced just equals predetermined load, stop discharging.
Preferably, also comprise after controlling discharging speed before obtaining weight of material signal or according to the change of actual weight of material: when the weight corresponding to weight of material signal is less than or equal to predetermined feed supplement weight, to weighing hopper feed supplement, until the actual weight of material in weighing hopper reaches the second predetermined value.After completing single metering, whether sufficiently just need to detect remaining inventory in weighing hopper, if inadequate, so to weighing hopper feed supplement, the second predetermined value can be reached to make the material in it.
As a second aspect of the present invention, please refer to Fig. 4, provide a kind of feeding control device of dry-mixed mortar production line, comprising: weight signal acquisition module, for obtaining weight of material signal; Interfering signal acquisition module, for obtaining vibration interference signal; Actual weight computing module, for carrying out filtering to obtain actual weight of material according to vibration interference signal to weight of material signal; Discharging speed control module, for controlling discharging speed to control actual load according to the change of actual weight of material.
Weight signal acquisition module in the present invention obtains the weight of the leftover materials in weighing hopper, interfering signal acquisition module gathers one or more vibration interference signals that dry-mixed mortar production line is subject to, such as, this vibration interference signal can be come to obtain the detection of weighing hopper.Further, actual weight computing module utilize this vibration interference signal to actual acquisition to weight of material signal carry out filtering, thus the larger difficult problem of error in dipping that measuring equipment in the steel construction building of dry-mixed mortar production line causes because of vibration interference that vibratory sieve and mixer etc. produce can be solved very well, like this, discharging speed control module just can control output speed according to the change of actual weight of material, thus reach the object accurately controlling actual load, meet the requirement of trace mineral supplement high-precision measuring.
The present invention is adapted to the active damping formula occasion of trace mineral supplement high-precision measuring demand in dry-mixed mortar production line completely, can be used for the automatic gauge of trace mineral supplement and feeds intake.Further, the present invention also has simple, lower-cost feature, is easy to realize Automatic Control, and has been successfully applied in some dry-mixed mortar production line domestic.
Preferably, actual weight computing module comprises: filtering algorithm acquisition module, for searching the filtering algorithm with the waveform characteristic matching of vibration interference signal according to vibration interference signal in the wave filter thesaurus prestored; Computing module, carries out filtering to obtain actual weight of material for utilizing filtering algorithm to weight of material signal.By the mode of waveform characteristic matching, the noise that the various vibration sources under same environment (such as dry-mixed mortar production line is fixedly mounted in a certain position determined usually) produce promptly can be found, and exactly by its filtering.
Preferably, store multiple filtering algorithm in advance in wave filter thesaurus, multiple filtering algorithm corresponds to any combination of various sources and/or various sources.
Preferably, discharging speed control module comprises: the first control module, for controlling weighing hopper with First Speed discharging; Load acquisition module, for obtaining actual load; Difference calculating module, for calculating the difference of actual load and predetermined load; Second control module, for when difference is less than or equal to the first setting value, controls weighing hopper to be less than the second speed discharging of First Speed, until actual load equals predetermined load.
Preferably, feeding control device also comprises: control of additive raw material module, for when the weight corresponding to weight of material signal is less than or equal to predetermined feed supplement weight, to weighing hopper feed supplement, until the actual weight of material in weighing hopper reaches the second predetermined value.
As a third aspect of the present invention, please refer to Fig. 5 to Fig. 9, provide a kind of feeding system of dry-mixed mortar production line, comprising: weighing hopper 1; Drawing mechanism 2, its entrance is corresponding with the outlet of weighing hopper 1 to be arranged; First sensor 3, for gathering weight of material signal; Second sensor 4, for detecting vibration interference signal; Controller 5, is connected with first sensor 3 and the second sensor 4, for carrying out filtering to obtain weight of material (actual weight of material) according to vibration interference signal to weight of material signal, and controls drawing mechanism 2 according to weight of material.Such as, controller 5 can adopt single-chip microcomputer and/or PLC to realize.In one embodiment, controller 5 combines by single-chip microcomputer (such as arm processor) and PLC the system formed, wherein, PLC is for realizing the control to drawing mechanism 2, single-chip microcomputer is used for carrying out filtering to obtain weight of material according to vibration interference signal to weight of material signal, and generate the control instruction to drawing mechanism 2 according to the change of weight of material, and this control instruction is sent to PLC, then controlled the motion of drawing mechanism 2 according to this control instruction by PLC.
Wherein, first sensor 3 obtains the weight of the leftover materials in weighing hopper, and the second sensor 4 gathers one or more vibration interference signals that dry-mixed mortar production line is subject to, and such as, this vibration interference signal can be come to obtain the detection of weighing hopper.Further, controller 5 utilize this vibration interference signal to actual acquisition to weight of material signal carry out filtering, thus the larger difficult problem of error in dipping that measuring equipment in the steel construction building of dry-mixed mortar production line causes because of vibration interference that vibratory sieve and mixer etc. produce can be solved very well, like this, just can control output speed according to the change of actual weight of material, thus reach the object accurately controlling actual load, meet the requirement of trace mineral supplement high-precision measuring.The present invention is adapted to the active damping formula occasion of trace mineral supplement high-precision measuring demand in dry-mixed mortar production line completely, can be used for the automatic gauge of trace mineral supplement and feeds intake.Further, the present invention also has simple, lower-cost feature, is easy to realize Automatic Control, and has been successfully applied in some dry-mixed mortar production line domestic.
Especially, the signal utilizing the second sensor 4 to collect, can eliminate horizontal and vertical vibration interference.
Preferably, controller 5 searches the filtering algorithm with the waveform characteristic matching of vibration interference signal according to vibration interference signal in the wave filter thesaurus prestored, and utilizes filtering algorithm to carry out filtering to obtain weight of material to weight of material signal.Preferably, store multiple filtering algorithm in advance in wave filter thesaurus, multiple filtering algorithm corresponds to any combination of various sources or various sources.
Preferably, drawing mechanism 2 can be conveying worm etc., and it is connected with motor 7 by reductor 6, and when the rotation speed change of motor 7, the rotating speed of conveying worm changes thereupon, thus can regulate discharging speed.Especially, be provided with paddle 9 in weighing hopper 1, the output shaft of reductor 6 can control the rotation of conveying worm and paddle 9, to control discharging speed.In a preferred embodiment, feeding system also comprises frequency converter 10, is connected with above-mentioned motor 7, for regulating the rotating speed of motor 7, with the discharging speed regulating described spiral to export machine.Such as, controller 5 can be connected with frequency converter 10, to send the instruction for controlling motor 7 rotating speed to frequency converter 10.Such as, when weighing material, the conveying worm controlled by motor 7 first rotates feed, when close to predetermined load with higher First Speed, frequency converter 10 controls conveying worm and is switched to low-frequency operation, until the reduced value of weight just equals predetermined load.
Preferably, please refer to Fig. 8, conveying worm is double-screw structure, and the helical blade size specification of two screw rods is the same, and turns to consistent.Such as, conveying worm is positioned at the bottom of weighing hopper, and material falls in conveying worm by gravity in weighing hopper.Obviously, conveying worm also can use single shaft singe screw.Unlike, double helix is in running, and feed is more even, and in the unit interval, delivery rate is stablized; Single-screw is slightly worse than double helix, but its manufacture and processing cost are lower than double helix.
Preferably, feeding system also comprises host computer 11 (such as, can be PLC or industrial computer etc.), host computer 11 is connected with controller 5, for assigning instruction to controller 5 to control the operation of whole system, meanwhile, also state (discharging speed etc. of the inventory such as, in weighing hopper, motor speed, conveying worm) current for system can be reflected.
Preferably, feeding system also comprises storage bin 12, and it is positioned at the top of weighing hopper 1, and the exit of storage bin 12 is provided with valving 13, and this valving 13 is connected with controller 5, and like this, controller 5 just can realize control of additive raw material by valving 13.
Please refer to Fig. 5 and Fig. 6, in a preferred embodiment, first sensor 3 is positioned at the below of weighing hopper, and the second sensor 4 is positioned at the side of weighing hopper.Especially, the number of the second sensor 4 can be two.Weighing hopper reliably can be fixed by first sensor 3 and the second sensor 4, prevent it from toppling over.In one embodiment, the weight of material in weighing hopper can be detected by means of only first sensor 3, and special in the second sensor 4 measuring vibrations interfering signal.
In another preferred embodiment, the second sensor 4 is not only used for detecting vibration interference signal, and can be used for the weight of the material detected in weighing hopper.In this case, the weight of weighing hopper not only acts on first sensor 3, but also can be applied on the second sensor 4, now, the signal that the second sensor 4 exports, can be used as weight signal on the one hand, on the other hand, also export as vibration interference signal simultaneously.The weight signal that the signal syntheses that controller 5 exports according to first sensor 3 and the second sensor 4 is total, meanwhile, the signal that controller 5 exports according to the second sensor 4 carries out filtering to this total weight signal, to obtain actual weight of material.
Below in conjunction with Fig. 5 to 9, the feeding system in the present invention is described in detail.
Please refer to Fig. 5, the feeding system in the present invention also comprises horizon adjustable bearing 14 and the weighting platform base 15 of band cushion blocking, and the horizon adjustable bearing of band cushion blocking is installed with on weighting platform base, with bolt on cushion blocking, and the height of adjustable weighting platform base.Wherein, weighing hopper has blow vent 16, charging aperture 17, cover plate 18 and bucket body 19, is furnished with two the second sensors 4 between the support and the housing of reductor 6 of motor 7.
The concrete course of work is as follows:
(1) first, by storage bin to weighing hopper feed supplement.When systems axiol-ogy is added to the second predetermined value of setting to material, automatically stop feed supplement.
(2) thick metering phase.After bringing into operation, the first High Rotation Speed of conveying worm, delivery rate is very fast, when close to predetermined load (such as, reaching 99% of predetermined load), automatically switches to low-frequency operation.
(3) smart metering phase.Conveying worm is when low-frequency operation, and delivery rate is comparatively slow, and when the weight reduced just equals predetermined load, conveying worm stops feed.
(4) in running, constantly (2)-(3) are repeated, to complete single metering.When the material in weighing hopper drops to predetermined feed supplement weight, get back to (1) and carry out feed supplement.
The present invention have the following advantages in: (1) can realize automatic gauge and the feed of trace mineral supplement, is easy to realize Automatic Control; (2) requirement of trace mineral supplement high-precision measuring is solved; (3) on equipment and control system, active damping is realized, the difficult problem that the error in dipping that the vibration interference that can solve the generation such as vibratory sieve and mixer preferably causes is large; (4) structure of the present invention is relatively simple, and cost is lower.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. the control method that feeds intake of dry-mixed mortar production line, is characterized in that, comprising:
Obtain weight of material signal;
Obtain vibration interference signal;
According to described vibration interference signal, filtering is carried out to obtain actual weight of material to described weight of material signal;
Discharging speed is controlled to control actual load according to the change of described actual weight of material.
2. control method according to claim 1, is characterized in that, carries out filtering comprise to obtain actual weight of material according to described vibration interference signal to described weight of material signal:
The filtering algorithm with the waveform characteristic matching of described vibration interference signal is searched in described vibration interference signal is in the wave filter thesaurus prestored;
Described filtering algorithm is utilized to carry out filtering to obtain described actual weight of material to described weight of material signal.
3. control method according to claim 2, is characterized in that, stores multiple filtering algorithm in advance in described wave filter thesaurus, and described multiple filtering algorithm corresponds to any combination of various sources and/or described various sources.
4. control method according to claim 1 and 2, is characterized in that, controls discharging speed comprise according to the change of described actual weight of material:
Control weighing hopper with First Speed discharging;
Obtain actual load;
Calculate the difference of described actual load and predetermined load;
When described difference is less than or equal to the first setting value, control described weighing hopper to be less than the second speed discharging of described First Speed, until described actual load equals described predetermined load.
5. control method according to claim 1, is characterized in that, also comprises after controlling discharging speed before obtaining weight of material signal or according to the change of described actual weight of material:
When the weight corresponding to described weight of material signal is less than or equal to predetermined feed supplement weight, to weighing hopper feed supplement, until the actual weight of material in described weighing hopper reaches the second predetermined value.
6. control method according to claim 2, is characterized in that, described control method also comprises:
Obtain the noise under specific environment;
Extract the characteristic of described noise;
Described characteristic is kept in noise storehouse;
Set up the mapping relations between the characteristic in described noise storehouse and the various filtering algorithms in described wave filter thesaurus.
7. a feeding control device for dry-mixed mortar production line, is characterized in that, comprising:
Weight signal acquisition module, for obtaining weight of material signal;
Interfering signal acquisition module, for obtaining vibration interference signal;
Actual weight computing module, for carrying out filtering to obtain actual weight of material according to described vibration interference signal to described weight of material signal;
Discharging speed control module, for controlling discharging speed to control actual load according to the change of described actual weight of material.
8. feeding control device according to claim 7, is characterized in that, described actual weight computing module comprises:
Filtering algorithm acquisition module, for searching the filtering algorithm with the waveform characteristic matching of described vibration interference signal according to described vibration interference signal in the wave filter thesaurus prestored;
Computing module, carries out filtering to obtain described actual weight of material for utilizing described filtering algorithm to described weight of material signal.
9. feeding control device according to claim 8, is characterized in that, stores multiple filtering algorithm in advance in described wave filter thesaurus, and described multiple filtering algorithm corresponds to any combination of various sources and/or described various sources.
10. feeding control device according to claim 8, is characterized in that, described discharging speed control module comprises:
First control module, for controlling weighing hopper with First Speed discharging;
Load acquisition module, for obtaining actual load;
Difference calculating module, for calculating the difference of described actual load and predetermined load;
Second control module, for when described difference is less than or equal to the first setting value, controls described weighing hopper to be less than the second speed discharging of described First Speed, until described actual load equals described predetermined load.
11. feeding control device according to claim 7, is characterized in that, described feeding control device also comprises:
Control of additive raw material module, for when the weight corresponding to described weight of material signal is less than or equal to predetermined feed supplement weight, to weighing hopper feed supplement, until the actual weight of material in described weighing hopper reaches the second predetermined value.
The feeding system of 12. 1 kinds of dry-mixed mortar production lines, is characterized in that, comprising:
Weighing hopper (1);
Drawing mechanism (2), its entrance is corresponding with the outlet of described weighing hopper (1) to be arranged;
First sensor (3), for gathering weight of material signal;
Second sensor (4), for detecting vibration interference signal;
Controller (5), be connected with described first sensor (3) and described second sensor (4), for carrying out filtering to obtain weight of material according to described vibration interference signal to described weight of material signal, and control described drawing mechanism (2) according to described weight of material.
13. feeding systems according to claim 12, it is characterized in that, described controller (5) searches the filtering algorithm with the waveform characteristic matching of described vibration interference signal according to described vibration interference signal in the wave filter thesaurus prestored, and utilizes described filtering algorithm to carry out filtering to obtain described weight of material to described weight of material signal.
14. feeding systems according to claim 13, is characterized in that, store multiple filtering algorithm in advance in described wave filter thesaurus, and described multiple filtering algorithm corresponds to any combination of various sources and/or described various sources.
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| CN201310667373.XA CN103660036B (en) | 2013-12-10 | 2013-12-10 | The control method that feeds intake of dry-mixed mortar production line, device and feeding system |
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| CN201310667373.XA CN103660036B (en) | 2013-12-10 | 2013-12-10 | The control method that feeds intake of dry-mixed mortar production line, device and feeding system |
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| CN105170482B (en) * | 2015-05-26 | 2017-10-27 | 重庆市机电设计研究院 | Control method based on precision weighing system |
| CN112454636B (en) * | 2020-11-25 | 2022-04-19 | 广东博智林机器人有限公司 | Control method and device, material distributor and storage medium |
| CN113967970B (en) * | 2021-10-19 | 2023-04-25 | 三一汽车制造有限公司 | Control method of micro metering system and micro metering system |
| CN117075568B (en) * | 2023-10-18 | 2024-01-05 | 绵阳沃思测控技术有限公司 | Batching control system based on continuous monitoring |
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