CN104085667A - Automatic feeding adjustment module and method, device and bulk foreign body detection mechanism thereof - Google Patents
Automatic feeding adjustment module and method, device and bulk foreign body detection mechanism thereof Download PDFInfo
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- CN104085667A CN104085667A CN201410310079.8A CN201410310079A CN104085667A CN 104085667 A CN104085667 A CN 104085667A CN 201410310079 A CN201410310079 A CN 201410310079A CN 104085667 A CN104085667 A CN 104085667A
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Abstract
The invention provides an automatic feeding adjustment module and a method, device and bulk foreign body detection mechanism of the automatic feeding adjustment module. A discharging port of a hopper is located above a conveying belt, and materials are evenly laid on the conveying belt through vibration of a vibrator. A first sensor detects the material level of the materials in the hopper. Rays are emitted from a radiation source to the materials on the conveying belt, and a second sensor collects the rays which penetrate through the conveying belt and the materials. A processor forms a corresponding target image according to the rays collected by the second sensor, in addition, when the material level is not smaller than a first preset material level value, the vibrator is turned on, and data analysis thread is started, wherein the duty ratio R of the target image is calculated, the vibration magnitude of the vibrator is increased if the duty ratio R is smaller than a first preset duty ratio threshold, the vibration magnitude of the vibrator is decreased if the duty ratio R is larger than a second preset duty ratio threshold, or else, the current vibration magnitude of the vibrator is kept unchanged, and the second preset duty ratio threshold is larger than the first preset duty ratio threshold.
Description
Technical field
The present invention relates to foreign material detecting technique field, particularly relate to granular bulk cargo detection field.
Background technology
X ray bulk cargo foreign matter detects machine principle of work: utilize X-ray different to the through characteristic of different material, detect and be mixed in the larger foreign matter of density in bulk cargo, as metal, glass, stone etc., then rejected by device for eliminating.As shown in Figure 1, existing X ray bulk cargo foreign matter detection machine comprises: feed arrangement, and main frame and device for eliminating, its function is separately:
Feed arrangement: by vibrator, make material uniform spreading on transport tape;
Main frame: gather and show and detect foreign matter by material image, and drive device for eliminating action;
Device for eliminating: drive corresponding mechanism (turnover panel or spray valve), reject foreign matter, can take a small amount of non-defective unit out of.
At X ray bulk cargo foreign matter, detect this field, at present device for eliminating has two kinds of single channel and multi-channels.Multi-channel is only rejected the material region at foreign matter place, therefore takes little (non-defective unit of taking out of while rejecting substandard products is few) out of, has more advantage.
Multi-channel device for eliminating requires: material is smooth running on transport tape.When Host Detection goes out certain passage, there is foreign matter, immediately drive the device for eliminating (spray valve or turnover panel) of respective channel, after certain time delay, move, foreign matter is accurately rejected.If during this period, Material moving track deflects, and from a passage, moves on to adjacent even farther passage, and back to back rejecting action can only be rejected non-defective unit by mistake.Can there is not the above-mentioned situation of few generation in other words in certainly, general material.But for granular material (shape of spheroidal or elliposoidal and so on), as black soya bean, the probability of the phenomenon that deflects on transport tape is just larger, thereby causes rejecting inaccurate.
Address this problem, can try every possible means from rejecting mode, such as each foreign matter of finding, start the spray valve (spray valve and the adjacent spray valve thereof at foreign matter place while finding foreign matter) of several groups of passages more.But this can increase, take ratio out of, and can not guarantee that foreign matter very rejects.
Summary of the invention
Solution of the present invention is: manage to allow granular material evenly be paved with transport tape.Because material is paved with, the free movable space of material is greatly limited, and the possibility that deflects into other passage from a passage reduces greatly, has therefore guaranteed the accuracy of foreign body eliminating, and to allow granular material evenly be paved with transport tape, will guarantee stable inlet amount.But in reality detects, front end feed is possibility deficiency or interruption sometimes, thereby cannot accomplish that charging is stable.Thus, the invention provides the automatic adjustment module of a kind of charging and charging self-checking device method thereof, apply the automatic adjustment module of this charging charging self-checking device, there is the bulk cargo foreign matter testing agency of charging self-checking device.
The present invention realizes like this, a kind of charging self-checking device, it is for automatically regulating the charging of bulk cargo foreign matter testing agency, this charging self-checking device involving vibrations device, transport tape, hopper, at least one first sensor, She Yuan, the second sensor, treater, vibration by this vibrator makes material uniform spreading on this transport tape, this hopper is used for carrying material, and the discharging opening of this hopper is positioned at this transport tape top, this at least one first sensor is for detection of the material level of material in this hopper, and this at least one first sensor is arranged on the madial wall of this hopper, and when the quantity of first sensor is while being a plurality of, all first sensors are positioned in same level, this penetrates source for sending ray to the material on this transport tape, and radial energy reaches on the relative both sides of this transport tape, this second sensor is for gathering through this transport tape and through the ray of material, this second sensor is positioned at the below of this transport tape, and can gather ray from a side of this transport tape, this treater forms corresponding target image for the ray collecting according to this second sensor, and when the material level that obtains of this first sensor of judgement is not less than the first predetermined material level value, open this vibrator, and log-on data is analyzed thread: the dutycycle R that calculates target image, if dutycycle R is less than the first predetermined duty cycle threshold values, control this vibrator and increase vibratory magnitude, if dutycycle R is greater than the second predetermined duty cycle threshold values, control this vibrator and reduce vibratory magnitude, otherwise controlling this vibrator keeps current vibratory magnitude constant, this the second predetermined duty cycle threshold values is greater than this first predetermined duty cycle threshold values.
Further improvement as such scheme, this charging self-checking device also comprises at least one the 3rd sensor for detection of the material level of material in this hopper, this at least one the 3rd installation of sensors on the madial wall of this hopper and be positioned at this first sensor above, when the quantity of the 3rd sensor is while being a plurality of, all the 3rd sensors are positioned in same level, when this treater is also not less than the second predetermined material level value for the material level obtaining at judgement the 3rd sensor, open this vibrator, and log-on data is analyzed thread, this second predetermined material level value is greater than this first predetermined material level value.
As the further improvement of such scheme, this vibrator is arranged on this hopper below or is arranged on this hopper.
The present invention also provides a kind of bulk cargo foreign matter testing agency, it comprises charging self-checking device, device for eliminating, wherein: this charging self-checking device is above-mentioned any one charging self-checking device, this device for eliminating is arranged on one end of this transport tape for rejecting the foreign matter of this material, this treater is the ray characteristics for collecting according to this second sensor also, sends signal and makes this device for eliminating action.
As the further improvement of such scheme, this device for eliminating is spray valve or turnover panel.
Further improvement as such scheme, this charging self-checking device also comprises at least one the 3rd sensor for detection of the material level of material in this hopper, this at least one the 3rd installation of sensors on the madial wall of this hopper and be positioned at this first sensor above, when the quantity of the 3rd sensor is while being a plurality of, all the 3rd sensors are positioned in same level, when this treater is also not less than the second predetermined material level value for the material level obtaining at judgement the 3rd sensor, open this vibrator, and log-on data is analyzed thread, this second predetermined material level value is greater than this first predetermined material level value.
The present invention also provides a kind of charging Automatic adjustment method, and it is applied in above-mentioned charging self-checking device, can also be applied in above-mentioned bulk cargo foreign matter testing agency, and this charging Automatic adjustment method comprises the following steps:
Whether the communication detecting between this at least one first sensor, this second sensor, this treater, this vibrator is successful, if communication success is opened level monitoring and obtained material level, otherwise finishes this charging Automatic adjustment method;
Judge whether material level is less than this first predetermined value;
If material level is less than this first predetermined value, be defined as material level too low and close this vibrator and close data analysis thread, and enter detection end determining step and judge whether detection finishes, if detect, finish to finish this charging Automatic adjustment method, otherwise proceed material level determining step, judge whether material level is less than this first predetermined value;
If material level cannot judge, be defined as this at least one sensor fault and report to the police and finish this charging Automatic adjustment method;
If material level is not less than this first predetermined value, be defined as material level normal and detect data analysis thread and whether open;
If data analysis thread is not activated, opens vibrator log-on data and analyze thread;
If data analysis thread starts, calculate the dutycycle R of target image;
Judge the situation of this dutycycle R: if this dutycycle R is less than this first predetermined duty cycle threshold values, control this vibrator and increase vibratory magnitude, if this dutycycle R is greater than this second predetermined duty cycle threshold values, control this vibrator and reduce vibratory magnitude, otherwise control this vibrator, keep current vibratory magnitude constant; After the situation judgement of this dutycycle R finishes, enter this detection and finish determining step and judge whether detection finishes.
Further improvement as such scheme, controlling this vibrator increases and waits for some seconds after vibratory magnitude and enter this detections end determining step again, control this vibrator and reduce also to wait for some seconds after vibratory magnitude and enter again this detections and finish determining step, control this vibrator and keep the constant rear dormancy of current vibratory magnitude to enter again this detection end determining step some seconds.
The present invention also provides a kind of charging automatic adjustment module, and it is for realizing above-mentioned charging Automatic adjustment method, and the automatic adjustment module of this charging comprises:
The successful judge module of communicating by letter, for detection of whether success of the communication between this at least one first sensor, this second sensor, this treater, this vibrator;
Level monitoring opening module, while communicating by letter successfully for the successful judge module judgement of communicating by letter at this, opens level monitoring and obtains material level;
The first predetermined value judge module, for judging whether material level is less than this first predetermined value;
Closing module, for when this first predetermined value judge module judgement material level is less than this first predetermined value, is defined as material level and closes this vibrator and close data analysis thread when too low;
Alarm module, for when this first predetermined value judge module judgement material level cannot judge, reports to the police while being defined as this at least one sensor fault;
Open judge module, for when this first predetermined value judge module judgement material level is not less than this first predetermined value, is defined as material level and detects data analysis thread when normal and whether open;
Opening module, while being not activated for data analysis thread being detected at this unlatching judge module, opening vibrator log-on data and analyzes thread;
Computing module, for when data analysis thread starts, calculates the dutycycle R of target image;
Dutycycle R situation judge module, for judging the situation of this dutycycle R;
Increase module, for when this dutycycle R situation judge module judges that this dutycycle R is less than this first predetermined duty cycle threshold values, controlling this vibrator increases vibratory magnitude;
Reduce module, for when this dutycycle R situation judge module judges that this dutycycle R is greater than this second predetermined duty cycle threshold values, control this vibrator and reduce vibratory magnitude;
Keep module, when judging that at this dutycycle R situation judge module this dutycycle R is between this first predetermined duty cycle threshold values and this second predetermined duty cycle threshold values, control this vibrator and keep current vibratory magnitude constant;
Detect and finish judge module, after operating in this closing module, this one that increases module, this minimizing module, this maintenance module, whether judgement detection finishes, and this first predetermined value judge module, when this detection end judge module judgement detection does not finish, starts again.
Further improvement as such scheme, the automatic adjustment module of this charging also comprises Postponement module, this Postponement module is restarted this detection and is finished judge module for waiting for some seconds after increasing vibratory magnitude at this vibrator of this increase module controls, also for also waiting for some seconds after reducing vibratory magnitude at this this vibrator of minimizing module controls, restart this detection and finish judge module, also for keeping this vibrator of module controls to keep the constant rear dormancy of current vibratory magnitude within some seconds, to restart this detection end judge module.
The present invention is by charging self-checking device feeding, main frame (being treater) collects material image, and analyze, if material is overstocked in image, main frame reduces the vibratory magnitude of vibrator in charging self-checking device, thereby reduces inlet amount, otherwise strengthens inlet amount, regulation and control by so repeatedly, are evenly paved with material.Due to, in charging self-checking device, there is level sensor, in whole testing process, main frame can be monitored material level, when material level is lower than threshold value time, close vibrator, thereby report to the police, can remind client to accelerate charging, until material level is when surpassing threshold value, main frame just carries out above-mentioned analysis to material image.
Accompanying drawing explanation
Fig. 1 is that existing X ray bulk cargo foreign matter detects machine structural representation.
Fig. 2 is the structural representation of the charging self-checking device that provides of better embodiment of the present invention.
Fig. 3 is the structural representation of the hopper of charging self-checking device in Fig. 2.
Fig. 4 is the another kind of structural representation of the hopper of charging self-checking device in Fig. 2.
Fig. 5 is the charging self-checking device method flow diagram of charging self-checking device in Fig. 2.
Fig. 6 is the structural representation of the bulk cargo foreign matter testing agency that provides of first embodiment of the invention.
Fig. 7 is the structural representation of the bulk cargo foreign matter testing agency that provides of second embodiment of the invention.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 2, the structural representation of the charging self-checking device that it provides for better embodiment of the present invention, this charging self-checking device is for automatically regulating the charging of bulk cargo foreign matter testing agency.This charging self-checking device involving vibrations device 1, transport tape 2, hopper 3, at least one first sensor 4 (take in the present embodiment one be illustrated for example), penetrate source 5, the second sensor 6, treater (being main frame in the present embodiment, the electronic machine that can also contain treater CPU for mobile communication terminal etc. in other embodiments).
Incorporated by reference to Fig. 3, hopper 3 is for carrying material 8, and the discharging opening 31 of this hopper 3 is positioned on this vibrator 1, and the material 8 in hopper 3 reaches on vibrator 1 by discharging opening 31, and the vibration by vibrator 1 makes material 8 uniform spreadings on transport tape 2.This vibrator 1 is arranged on this hopper 3 belows, certainly, and in other embodiments, vibrator 1 also can be arranged on this hopper 3, vibrator 1 even can be integrated with hopper 3, and material directly allows material evenly through discharging opening by the hopper of vibration, falls on transport tape 2.Vibrator 1 is exactly a propulsion source, as long as can allow material uniform spreading on transport tape 2.As: 1, vibrator is arranged on the outer wall of hopper, by vibrator, is vibrated and is made and then vibration of hopper, and material both can evenly pass discharging opening; 2, be arranged on hopper inwall, principle is the same, further, considers that material may extrusion and vibration device, can give the baffle plate that adds of vibrator, and described baffle part is fixed in hopper inwall, extends to the top of vibrator, so that material extrusion and vibration device not.Transport tape 2 is belt in the present embodiment, is certainly not limited to belt, can also can realize the transmission parts of transmission material 8 for other.Even, transport tape 2 can have inclination, is not limited to horizontal transport.
First sensor 4 is level sensor, material level for detection of the interior material 8 of this hopper 3, first sensor 4 is according to characteristics such as the surface reflection of material 8 to be checked, output, can move on the madial wall that is arranged at hopper 3, for detection of material 8 to be checked, whether reach i.e. the first predetermined material level value (can with adjust according to actual use amount) of threshold value, and send a signal to treater, thereby control opening or closing of this charging self-checking device.
First sensor 4 passes through to send light wave, when light wave is encountered the madial wall of hopper 3, and the light wave that reflection first sensor 4 is sent, now first sensor 4 receives the light wave reflecting, and judges whether material 8 to be detected reaches this first predetermined material level value.When the quantity of first sensor 4 is while being a plurality of, all first sensors 4 are positioned in same level, so just can record preferably material level.
In the present embodiment, first sensor 4 is opto-electronic pickup.Certainly, in other embodiments, first sensor 4 also can adopts pressure sensor.Pressure sensor is divided into quartz conductor piezoelectricity resistance type and capacitance-type.1, quartz conductor Piezoelectric Impedance diffusion pressure sensor is to form semiconductor strain pressure at sheet surface, makes thin metal plate produce Piezoelectric Impedance effect, thereby make the variation of impedance be converted to electric signal by external force (pressure).Semi-conductive Piezoelectric Impedance sensor setting is now at the inwall of feeder hopper.2, capacitance-type is that the variation of electrostatic capacity that the movable utmost point distortion of the fixed pole of glass and silicon is produced converts electric signal to.Now electrostatic capacity sensor setting the inwall of feeder hopper or above all can.Further, consider that material may push first sensor 4, can give the baffle plate that adds of vibrator 1, described baffle part is fixed in feeder hopper inwall, extends to the top of first sensor 4, so that material does not push first sensor 4.
Penetrate the relative both sides that source 5 reaches this transport tape 2 for sending ray to the material 8 on this transport tape 2 and radial energy.Penetrating source 5 can be electrically connected with this treater, when the material level that this treater can obtain at this first sensor 4 of judgement is not less than the first predetermined material level value, opens vibrator 1, carries out material detection.In the present embodiment, penetrate source 5 and penetrate source for X-ray, in other embodiments, the source of penetrating can be the good light source of any type of projectiveness, is not limited to X-ray, might not be also point source of light, can also be linear light sorurce, the light beam of formation may not be fan-shaped in figure, can be planar rectangular.
The second sensor 6 is for gathering through this transport tape 2 and through the ray of material 8, this second sensor 6 is positioned at the below of this transport tape 2, and can gather ray from a side of this transport tape 2, and the second sensor 6 can be ccd sensor.
This treater forms corresponding target image for the ray collecting according to this second sensor 6, and when the material level that obtains of this first sensor 4 of judgement is not less than the first predetermined material level value, open this vibrator 1, and log-on data is analyzed thread: the dutycycle R that calculates target image (calculates target image dutycycle, density, gather image out, the area of material 8 is with the ratio of image area, so that image (transport tape 2) both sides is more sparse, a part with regard to cut-away view as the right and left, the area of material 8 is with the ratio of remaining image area.), if dutycycle R is less than the first predetermined duty cycle threshold values (can with adjust according to actual needs setting), control this vibrator 1 and increase vibratory magnitude, if dutycycle R is greater than the second predetermined duty cycle threshold values (can with adjust according to actual needs setting), control this vibrator 1 and reduce vibratory magnitude, otherwise control this vibrator 1, keep current vibratory magnitude constant, this second predetermined duty cycle threshold values is greater than this first predetermined duty cycle threshold values.
The charging self-checking device that embodiment of the present invention provides, by the density (the size judgement by dutycycle R realizes) of the material 8 on the continuous detected transmission band 2 of treater, the vibratory magnitude of corresponding adjustment vibrator 1, thereby guarantee stable inlet amount, allow granular material 8 evenly be paved with transport tape 2.
Incorporated by reference to Fig. 4, in other embodiments, in hopper 3, can also increase at least one the 3rd sensor 42 (following the 3rd sensor 42 take be illustrated as example) is set, the 3rd sensor 42 specifically select same first sensor 4, be again not repeated.
The 3rd sensor 42 is arranged on the madial wall of this hopper 3 and is positioned at the top of this first sensor 4.When the quantity of the 3rd sensor 42 is while being a plurality of, all the 3rd sensors 42 are positioned in same level, to obtain preferably material level.Treater judges when material level that the 3rd sensor 42 obtains is not less than the second predetermined material level value (can with adjust according to actual needs setting), open this vibrator 1, and log-on data analysis thread, this second predetermined material level value is greater than this first predetermined material level value.
That is to say that the 3rd sensor 42 may be defined as high-order level sensor, first sensor 4 can correspondingly be defined as low level level sensor, high-order level sensor and low level level sensor are all removably set on the madial wall of hopper 3, and high-order level sensor is arranged on the top of low level level sensor.
Whether low sensors, reach the first predetermined material level value for detection of material 8 to be checked.When feed monitoring function is when activating, as long as material level, greater than or equal to this position, thinks that material level is normal, system is always in the self-regulating state of feed.If material level lower than this position, judges that material level is too low, main frame stops feed vibrator 1, stops data analysis, and reports to the police and step up feed to user reminding.
High position sensor, after occurring for above-mentioned situation, system wakes up certainly.Also, user adds materials under alarm, when material 8 additions reach or surpass Second Threshold (position of high position sensor indication), feed vibrator 1 starts automatically, main frame continues analysis of data collected automatically, and regulates in real time vibratory magnitude with this, reaches the self-regulating object of feed.
According to actual conditions, the quantity of level sensor also can change, and precisely detects material whether reach threshold value as guaranteed, many group level sensors also can be set on the madial wall of hopper 3.Material 8 to be detected falls to feeder hopper 3 bottoms, the vibrator 1 of vibration evenly can regulate material 8 to be detected discharging opening 31 through opening.
Incorporated by reference to Fig. 5, the logical schematic of the automatic regulative mode of charging that it is this treater, is also the diagram of circuit of charging Automatic adjustment method.
This charging Automatic adjustment method comprises the following steps:
Whether the communication detecting between this first sensor 4, this second sensor 6, this treater, this vibrator 1 is successful, if communication success is opened level monitoring and obtained material level, otherwise finishes this charging Automatic adjustment method;
Judge whether material level is less than this first predetermined value;
If material level is less than this first predetermined value, be defined as material level too low and close this vibrator 1 and close data analysis thread, and enter detection end determining step and judge whether detection finishes, if detect, finish to finish this charging Automatic adjustment method, otherwise proceed material level determining step, judge whether material level is less than this first predetermined value;
If material level cannot judge, be defined as these first sensor 4 faults and report to the police and finish this charging Automatic adjustment method;
If material level is not less than this first predetermined value, be defined as material level normal and detect data analysis thread and whether open;
If data analysis thread is not activated, opens vibrator 1 log-on data and analyze thread;
If data analysis thread starts, calculate the dutycycle R of target image, in the present embodiment, can wait for some seconds as after 1.2 seconds, calculate again the dutycycle R of target image;
Judge the situation of this dutycycle R: if this dutycycle R is less than this first predetermined duty cycle threshold values, control this vibrator 1 and increase vibratory magnitude, if this dutycycle R is greater than this second predetermined duty cycle threshold values, control this vibrator 1 and reduce vibratory magnitude, otherwise control this vibrator 1, keep current vibratory magnitude constant; After the situation judgement of this dutycycle R finishes, enter this detection and finish determining step and judge whether detection finishes.
Wherein, controlling this vibrator 1 increases and waits for some seconds after vibratory magnitude and enter this detections end determining step again, control this vibrator 1 and reduce also to wait for some seconds after vibratory magnitude and enter again this detections and finish determining step, control this vibrator 1 and keep the constant rear dormancy of current vibratory magnitude to enter again this detection end determining step some seconds.In the present embodiment, controlling this vibrator 1 increases and waits for 1.2 seconds after vibratory magnitude and enter this detections end determining step again, control this vibrator 1 and reduce also to wait for 1.2 seconds after vibratory magnitude and enter again this detection to finish determining step, control this vibrator 1 and keep the constant rear dormancy of current vibratory magnitude within 10 seconds, to enter again this detections end determining step.
That is to say, suppose that the function of feed monitoring can activate or end, and if hypothesis activated feed monitoring function, after start, workflow is as shown in Figure 5:
Program starts, and communicates detection, if communicate by letter successfully, opens level monitoring, and the order that material level information is obtained in transmission is to lower computer, and lower computer just sends to upper computer by material level state every 30ms, and order is down carried out; If communication failure, directly goes to step: program exits;
Monitor current material level situation, if material level is normal, order is down carried out; If material level is too low, close vibrator, close data analysis thread, go to and calculate target image step; If level sensor has fault, report to the police, go to step: program exits;
If data analysis thread is not opened, open vibrator 1, log-on data is analyzed thread, waits for after 1.2 seconds, and order is down carried out; If data analysis thread is opened, directly down carry out;
Calculate target image (gray scale is lower than certain threshold value person) dutycycle R (rare because of belt edge material, edge respectively shields certain area image), if R is less than certain low threshold value, illustrate that material is rare, increase vibratory magnitude, wait for 1.2 seconds; If R is greater than certain high threshold, material overfill is described, reduce vibratory magnitude, wait for 1.2 seconds, the situation outside this, keeps vibratory magnitude constant, can dormancy 10 seconds;
Detect and do not finish, return to material level situation determining step, otherwise go to step: program exits;
Program exits.
This charging Automatic adjustment method, when program design, can be designed to modular form, is designed to the automatic adjustment module of charging.The automatic adjustment module of this charging comprises:
The successful judge module of communicating by letter, for detection of whether success of the communication between this first sensor 4, this second sensor 6, this treater, this vibrator 1;
Level monitoring opening module, while communicating by letter successfully for the successful judge module judgement of communicating by letter at this, opens level monitoring and obtains material level;
The first predetermined value judge module, for judging whether material level is less than this first predetermined value;
Closing module, for when this first predetermined value judge module judgement material level is less than this first predetermined value, is defined as material level and closes this vibrator 1 and close data analysis thread when too low;
Alarm module, for when this first predetermined value judge module judgement material level cannot judge, reports to the police while being defined as first sensor 4 fault;
Open judge module, for when this first predetermined value judge module judgement material level is not less than this first predetermined value, is defined as material level and detects data analysis thread when normal and whether open;
Opening module, while being not activated for data analysis thread being detected at this unlatching judge module, opening vibrator 1 log-on data and analyzes thread;
Computing module, for when data analysis thread starts, calculates the dutycycle R of target image;
Dutycycle R situation judge module, for judging the situation of this dutycycle R;
Increase module, for when this dutycycle R situation judge module judges that this dutycycle R is less than this first predetermined duty cycle threshold values, controlling this vibrator 1 increases vibratory magnitude;
Reduce module, for when this dutycycle R situation judge module judges that this dutycycle R is greater than this second predetermined duty cycle threshold values, control this vibrator 1 and reduce vibratory magnitude;
Keep module, when judging that at this dutycycle R situation judge module this dutycycle R is between this first predetermined duty cycle threshold values and this second predetermined duty cycle threshold values, control the current vibratory magnitude of this vibrator 1 maintenance constant;
Detect and finish judge module, after operating in this closing module, this one that increases module, this minimizing module, this maintenance module, whether judgement detection finishes, and this first predetermined value judge module, when this detection end judge module judgement detection does not finish, starts again.
Wherein, the automatic adjustment module of this charging also comprises Postponement module, this Postponement module is restarted this detection and is finished judge module for waiting for some seconds after increasing vibratory magnitude at this vibrator 1 of this increase module controls, also for also waiting for some seconds after reducing vibratory magnitude at this vibrator 1 of this minimizing module controls, restart this detection and finish judge module, also for keeping the constant rear dormancy of current vibratory magnitude within some seconds, to restart this detection at this vibrator 1 of maintenance module controls, finish judge module.
Charging self-checking device can be applied in different bulk cargo foreign matter testing agencies, and multichannel turnover panel foreign matter testing agency (as Fig. 7) as described below is with nozzle foreign matter testing agency (as Fig. 6).
Refer to Fig. 6, it has shown the structure of the bulk cargo foreign matter testing agency that first embodiment of the invention provides.This bulk cargo foreign matter testing agency comprises above-mentioned charging self-checking device and device for eliminating.Vibrator 1, transport tape 2, hopper 3, first sensor 4, the effect of penetrating source 5, the second sensor 6 are introduced identically with above-mentioned separately, at this, narrate no longer one by one.This device for eliminating is arranged on one end of this transport tape 2 for rejecting the foreign matter of this material 8, and in the present embodiment, this treater drives this device for eliminating action for the ray characteristics collecting according to this second sensor 6.
In the present embodiment, device for eliminating comprises spray valve 71.Spray valve 71 comprises a plurality of nozzles that are arranged side by side, and each nozzle can blow separately the foreign matter in material 8 to be checked off, and a plurality of nozzles also can be worked simultaneously.
Charging self-checking device is arranged on multi-channel belt conveyor 2 one end, material 8 to be checked can evenly be covered with on multi-channel belt conveyor 2 by discharging opening 31, the top of multi-channel belt conveyor 2 is provided with the source of penetrating 5, with penetrate the second sensor 6 that source 5 is oppositely arranged and be fixed on multi-channel belt conveyor 2, other one end of multi-channel belt conveyor 2 is provided with spray valve 71, and the lower end of spray valve 71 is provided with receiving hopper (not shown).
Material 8 to be checked enters above-mentioned charging self-checking device, passing through to discharging opening 31 is evenly covered with on multi-channel belt conveyor 2, belt conveyor 2 with certain speed by penetrating 5 belows, source, penetrate source 5 and send ray, now with penetrate the second sensor 6 that source 5 is oppositely arranged and collect the ray through material 8 to be checked, by main frame, this ray is transformed into visual image, main frame sends control signal, when foreign matter is along with multi-channel belt conveyor 2 moves to the below of spraying valve 71, open spray valve 71, foreign matter is blown in receiving hopper from material to be detected, thereby has rejected foreign matter.4
Further, in order to improve rejecting precision, the material being blown in receiving hopper can be rejoined in hopper 3, then carry out foreign body eliminating one time, operation so repeatedly, until reach the requirement of rejecting precision.
In another preferred embodiment, refer to Fig. 7, the structural representation of the bulk cargo foreign matter testing agency that Fig. 7 provides for second embodiment of the invention, above-mentioned charging self-checking device is arranged on multi-channel belt conveyor 2 one end, material 8 to be checked can evenly be covered with on multi-channel belt conveyor 2 by discharging opening 31, the top of multi-channel belt conveyor 2 is provided with the source of penetrating 5, and penetrates the second sensor 6 that source 5 is oppositely arranged and is fixed on multi-channel belt conveyor 2.The difference of two embodiments is: device for eliminating arranges difference, and the device for eliminating of the second embodiment comprises reprint 73, and turnover panel 73 is evenly arranged on multi-channel belt conveyor 2.
Material 8 to be checked enters above-mentioned charging self-checking device, passing through to discharging opening 31 is evenly covered with on multi-channel belt conveyor 2, belt conveyor 2 with certain speed by penetrating 5 belows, source, penetrate source 5 and send ray, now with penetrate the second sensor 6 that source 5 is oppositely arranged and collect the ray through material 8 to be checked, by main frame, this ray is transformed into visual image, main frame sends control signal, when foreign matter is along with multi-channel belt conveyor 2 moves to turnover panel 73 places, controlling turnover panel 73 overturns, foreign matter falls into receiving hopper, thereby rejected foreign matter, the certain initial velocity of good material 8 when leaving belt falls into another one receiving hopper.
At least one turnover panel 73 as shown in Figure 7, is arranged side by side in one end of belt conveyor 2, and the overall width of turnover panel 73 is more than or equal to the width of belt conveyor 2, and each turnover panel 73 one end is close to belt conveyor 2.In the time of material separating 8, control be close to belt conveyor 2 one end turnover panel 73 away from belt conveyor 2, make the gap of foreign matter between turnover panel 73 and belt conveyor 2 fall into receiving hopper.
The precision of width/number affects foreign body eliminating of turnover panel 73, that is to say that turnover panel 73 width are larger, takes good material 8 out of just more when rejecting material to be detected 8.
Further, in order to improve rejecting precision, the material 8 being turned in receiving hopper can be rejoined in hopper 3, then carry out foreign body eliminating one time, operation so repeatedly, until reach the requirement of rejecting precision.
It should be noted that Fig. 6, Fig. 7 is an example, it can be the good light source of any type of projectiveness that its what is called is penetrated source, is not limited to X-ray, might not be also point source of light, can also be linear light sorurce, the light beam of formation may not be fan-shaped in figure, can be planar rectangular.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a charging self-checking device, it is for automatically regulating the charging of bulk cargo foreign matter testing agency, this charging self-checking device involving vibrations device and transport tape, the vibration by this vibrator makes material uniform spreading on this transport tape; It is characterized in that: this charging self-checking device also comprises hopper, at least one first sensor, She Yuan, the second sensor, treater;
This hopper is used for carrying material, and the discharging opening of this hopper is positioned at this transport tape top;
This at least one first sensor is for detection of the material level of material in this hopper, and this at least one first sensor is arranged on the madial wall of this hopper, and when the quantity of first sensor is while being a plurality of, all first sensors are positioned in same level;
This penetrates source for sending ray to the material on this transport tape, and radial energy reaches on the relative both sides of this transport tape;
This second sensor is for gathering through this transport tape and through the ray of material, this second sensor is positioned at the below of this transport tape, and can gather ray from a side of this transport tape;
This treater forms corresponding target image for the ray collecting according to this second sensor, and when the material level that obtains of this first sensor of judgement is not less than the first predetermined material level value, open this vibrator, and log-on data is analyzed thread: the dutycycle R that calculates target image, if dutycycle R is less than the first predetermined duty cycle threshold values, control this vibrator and increase vibratory magnitude, if dutycycle R is greater than the second predetermined duty cycle threshold values, control this vibrator and reduce vibratory magnitude, otherwise controlling this vibrator keeps current vibratory magnitude constant, this the second predetermined duty cycle threshold values is greater than this first predetermined duty cycle threshold values.
2. charging self-checking device as claimed in claim 1, it is characterized in that, this charging self-checking device also comprises at least one the 3rd sensor for detection of the material level of material in this hopper, this at least one the 3rd installation of sensors on the madial wall of this hopper and be positioned at this first sensor above, when the quantity of the 3rd sensor is while being a plurality of, all the 3rd sensors are positioned in same level, when this treater is also not less than the second predetermined material level value for the material level obtaining at judgement the 3rd sensor, open this vibrator, and log-on data is analyzed thread, this second predetermined material level value is greater than this first predetermined material level value.
3. charging self-checking device as claimed in claim 1, is characterized in that, this vibrator is arranged on this hopper below or is arranged on this hopper.
4. a bulk cargo foreign matter testing agency, it comprises charging self-checking device, device for eliminating, it is characterized in that: this charging self-checking device is charging self-checking device claimed in claim 1, this device for eliminating is arranged on one end of this transport tape for rejecting the foreign matter of this material, this treater is the ray characteristics for collecting according to this second sensor also, sends signal and makes this device for eliminating action.
5. bulk cargo foreign matter as claimed in claim 4 testing agency, is characterized in that, this device for eliminating is spray valve or turnover panel.
6. bulk cargo foreign matter as claimed in claim 4 testing agency, it is characterized in that, this charging self-checking device also comprises at least one the 3rd sensor for detection of the material level of material in this hopper, this at least one the 3rd installation of sensors on the madial wall of this hopper and be positioned at this first sensor above, when the quantity of the 3rd sensor is while being a plurality of, all the 3rd sensors are positioned in same level, when this treater is also not less than the second predetermined material level value for the material level obtaining at judgement the 3rd sensor, open this vibrator, and log-on data is analyzed thread, this second predetermined material level value is greater than this first predetermined material level value.
7. a charging Automatic adjustment method, it is applied in the charging self-checking device as described in claims 1 to 3, can also be applied to, in the bulk cargo foreign matter testing agency as described in claim 4 to 6, it is characterized in that: this charging Automatic adjustment method comprises the following steps:
Whether the communication detecting between this at least one first sensor, this second sensor, this treater, this vibrator is successful, if communication success is opened level monitoring and obtained material level, otherwise finishes this charging Automatic adjustment method;
Judge whether material level is less than this first predetermined value;
If material level is less than this first predetermined value, be defined as material level too low and close this vibrator and close data analysis thread, and enter detection end determining step and judge whether detection finishes, if detect, finish to finish this charging Automatic adjustment method, otherwise proceed material level determining step, judge whether material level is less than this first predetermined value;
If material level cannot judge, be defined as this at least one sensor fault and report to the police and finish this charging Automatic adjustment method;
If material level is not less than this first predetermined value, be defined as material level normal and detect data analysis thread and whether open;
If data analysis thread is not activated, opens vibrator log-on data and analyze thread;
If data analysis thread starts, calculate the dutycycle R of target image;
Judge the situation of this dutycycle R: if this dutycycle R is less than this first predetermined duty cycle threshold values, control this vibrator and increase vibratory magnitude, if this dutycycle R is greater than this second predetermined duty cycle threshold values, control this vibrator and reduce vibratory magnitude, otherwise control this vibrator, keep current vibratory magnitude constant; After the situation judgement of this dutycycle R finishes, enter this detection and finish determining step and judge whether detection finishes.
8. charging Automatic adjustment method as claimed in claim 7, it is characterized in that, controlling this vibrator increases and waits for some seconds after vibratory magnitude and enter this detections end determining step again, control this vibrator and reduce also to wait for some seconds after vibratory magnitude and enter again this detections and finish determining step, control this vibrator and keep the constant rear dormancy of current vibratory magnitude to enter again this detection end determining step some seconds.
9. the automatic adjustment module of charging, it,, for realizing charging Automatic adjustment method as claimed in claim 7, is characterized in that: the automatic adjustment module of this charging comprises:
The successful judge module of communicating by letter, for detection of whether success of the communication between this at least one first sensor, this second sensor, this treater, this vibrator;
Level monitoring opening module, while communicating by letter successfully for the successful judge module judgement of communicating by letter at this, opens level monitoring and obtains material level;
The first predetermined value judge module, for judging whether material level is less than this first predetermined value;
Closing module, for when this first predetermined value judge module judgement material level is less than this first predetermined value, is defined as material level and closes this vibrator and close data analysis thread when too low;
Alarm module, for when this first predetermined value judge module judgement material level cannot judge, reports to the police while being defined as this at least one sensor fault;
Open judge module, for when this first predetermined value judge module judgement material level is not less than this first predetermined value, is defined as material level and detects data analysis thread when normal and whether open;
Opening module, while being not activated for data analysis thread being detected at this unlatching judge module, opening vibrator log-on data and analyzes thread;
Computing module, for when data analysis thread starts, calculates the dutycycle R of target image;
Dutycycle R situation judge module, for judging the situation of this dutycycle R;
Increase module, for when this dutycycle R situation judge module judges that this dutycycle R is less than this first predetermined duty cycle threshold values, controlling this vibrator increases vibratory magnitude;
Reduce module, for when this dutycycle R situation judge module judges that this dutycycle R is greater than this second predetermined duty cycle threshold values, control this vibrator and reduce vibratory magnitude;
Keep module, when judging that at this dutycycle R situation judge module this dutycycle R is between this first predetermined duty cycle threshold values and this second predetermined duty cycle threshold values, control this vibrator and keep current vibratory magnitude constant;
Detect and finish judge module, after operating in this closing module, this one that increases module, this minimizing module, this maintenance module, whether judgement detection finishes, and this first predetermined value judge module, when this detection end judge module judgement detection does not finish, starts again.
10. the automatic adjustment module of charging as claimed in claim 9, it is characterized in that, the automatic adjustment module of this charging also comprises Postponement module, this Postponement module is restarted this detection and is finished judge module for waiting for some seconds after increasing vibratory magnitude at this vibrator of this increase module controls, also for also waiting for some seconds after reducing vibratory magnitude at this this vibrator of minimizing module controls, restart this detection and finish judge module, also for keeping this vibrator of module controls to keep the constant rear dormancy of current vibratory magnitude within some seconds, to restart this detection end judge module.
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