CN103876277A - Device and method for controlling material flow - Google Patents
Device and method for controlling material flow Download PDFInfo
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- CN103876277A CN103876277A CN201410142589.9A CN201410142589A CN103876277A CN 103876277 A CN103876277 A CN 103876277A CN 201410142589 A CN201410142589 A CN 201410142589A CN 103876277 A CN103876277 A CN 103876277A
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Abstract
The invention discloses a device and a method for controlling a material flow. The device comprises a feeding machine, a lifting machine, a material falling hopper and an electronic scale, wherein the material is transmitted to the lifting machine through the feeding machine; the lifting machine is used for transmitting the material to the material falling hopper; the material falling hopper is located above the electronic scale and used for directly transmitting the material to the electronic scale; a frequency-variable controlled feeding machine is adopted as the feeding machine, and/or a frequency-variable controlled lifting machine is adopted as the lifting machine. Through the device and the method, the cut tobacco breakage is reduced, the height of the device is reduced, the cost is reduced and the stability of the material flow is improved.
Description
Technical field
The present invention relates to production of cigarettes field, particularly a kind of control device of mass flow and method.
Background technology
In the existing cigarette primary processing technological process of production, mass flow control is indispensable controlling unit.Fig. 1 is the schematic diagram that material flow control device of the prior art is shown, this volume control device comprises feeding machine 101, elevator 102, material-falling hopper 103, material-falling hopper photoelectric tube 104, limited tube 105 and electronic scale 106.Wherein:
Material is sent to elevator 102 by feeding machine 101;
Material is sent to material-falling hopper 103 by elevator 102;
Material-falling hopper 103 places are provided with material-falling hopper photoelectric tube 104, and material is sent to limited tube 105 through material-falling hopper 103 and material-falling hopper photoelectric tube 104;
Material is sent to electronic scale 106 by limited tube 105;
Material is sent to cylinder 107 by electronic scale 106.
The process of pipe tobacco material from feeding machine 101 to cylinder 107, material-falling hopper photoelectric tube 104 can detect whether there is pipe tobacco, programmable logic controller (PLC) (Programmable Logic Controller, PLC) whether there is pipe tobacco by detection signal detection material-falling hopper 103 places that gather material-falling hopper photoelectric tube 104, if there is no pipe tobacco, start the belt motor of elevator 101 and feeding machine 102, feeding tobacco-thread is to electronic scale 106, if there is pipe tobacco, the belt motor that stops elevator 101 and feeding machine 102, stops charging.By this control mode, ensureing has material on electronic scale all the time, avoids because of supplied materials underfed the traffic-affecting of electronic scale 106.
Summary of the invention
The present inventor finds to have problems in above-mentioned prior art, and has therefore proposed a kind of new technical scheme at least one problem in described problem.
One aspect of the present invention is to provide a kind of control device of mass flow, comprising:
Feeding machine,
Elevator, is connected with described feeding machine;
Material-falling hopper, is connected with described elevator, and is positioned at the top of electronic scale;
Electronic scale, is positioned at the discharging section of described material-falling hopper, directly docks with described material-falling hopper.
Further, also comprise: PLC, is electrically connected with described electronic scale.
Further, also comprise: described electronic scale is installed the first frequency converter, described the first frequency converter is electrically connected with described PLC, and described the first frequency converter is electrically connected with the first motor of the feed belt of controlling described electronic scale.
Further, also comprise: described feeding machine is installed the second frequency converter, described the second frequency converter is electrically connected with described PLC, and described the second frequency converter is electrically connected with the second motor of the feed belt of controlling described feeding machine;
And/or
Described hoist installation the 3rd frequency converter, described the 3rd frequency converter is electrically connected with described PLC, and described the 3rd frequency converter is electrically connected with the 3rd motor of the feed belt of controlling described elevator.
Further, also comprise: described the first frequency converter receives the frequency signal V1 of described first motor of described PLC transmission, and change the frequency of described the first motor according to described frequency signal V1.
Further, comprising: described PLC calculates the frequency signal V2 of described the second motor according to the frequency signal V1 of described the first motor, and be sent to described the second frequency converter;
And/or
Described PLC calculates the frequency signal V3 of described the 3rd motor according to the frequency signal V1 of described the first motor, and is sent to described the 3rd frequency converter.
Further, comprising: the frequency signal V2=k2 × V1 of described the second motor, 0≤k2≤1; And/or the frequency signal V3=k3 × V1 of described the 3rd motor, 0≤k3≤1.
Further, also comprise: material-falling hopper photoelectric tube, be positioned on described material-falling hopper, be electrically connected with described PLC.
Another aspect of the present invention is to provide a kind of control method of mass flow, comprising:
Material sends elevator to through feeding machine;
Described elevator sends described material to material-falling hopper;
Described material-falling hopper is positioned at the top of electronic scale, and directly sends described material to described electronic scale.
Further, also comprise: the first frequency converter is installed on described electronic scale, and described the first frequency converter is electrically connected with the first motor of the feed belt of controlling described electronic scale;
Receive the frequency signal V1 of described first motor of PLC transmission via described the first frequency converter, and change the frequency of described the first motor according to described frequency signal V1.
Further, also comprise: at described feeding machine, the second frequency converter is installed, described the second frequency converter is electrically connected with the second motor of the feed belt of controlling described feeding machine;
Receive the frequency signal V2 of described second motor of PLC transmission via described the second frequency converter, and change the frequency of described the second motor according to described frequency signal V2;
And/or
At described hoist installation the 3rd frequency converter, described the 3rd frequency converter is electrically connected with the 3rd motor of the feed belt of controlling described elevator;
Receive the frequency signal V3 of described the 3rd motor of PLC transmission via described the 3rd frequency converter, and change the frequency of described the 3rd motor according to described frequency signal V3.
Further, comprising: the frequency signal V2=k2 × V1 of described the second motor, 0≤k2≤1; And/or the frequency signal V3=k3 × V1 of described the 3rd motor, 0≤k3≤1.
Further, also comprise: material-falling hopper photoelectric tube is surveyed mass flow in described material-falling hopper, and detectable signal is sent to described PLC;
Described PLC judges according to described detectable signal in described material-falling hopper, whether material reaches rated capacity, if reach rated capacity, described feeding machine and elevator are out of service; If while not reaching rated capacity, feeding machine and elevator continue operation.
The present invention, by material-falling hopper is directly docked with electronic scale, has simplified technological process, has reduced the height of equipment, reduces costs, and has reduced pipe tobacco and made brokenly, prevents putty phenomenon.In addition, the present invention for example, adopts VFC to feed arrangement (feeding machine and elevator), has optimized the control of mass flow, makes supplied materials more stable.
By the detailed description to exemplary embodiment of the present invention referring to accompanying drawing, it is clear that further feature of the present invention and advantage thereof will become.
Brief description of the drawings
The accompanying drawing that forms a part for description has been described embodiments of the invention, and together with the description for explaining principle of the present invention.
With reference to accompanying drawing, according to detailed description below, can more be expressly understood the present invention, wherein:
Fig. 1 is the schematic diagram that the control device of mass flow of the prior art is shown.
Fig. 2 is the schematic diagram that the control device of mass flow according to an embodiment of the invention is shown.
Fig. 3 is the electrical structure connection layout that PLC and electronic scale in the control device of mass flow according to an embodiment of the invention are shown.
Fig. 4 is the electrical structure connection layout that PLC and feeding machine in the control device of mass flow according to an embodiment of the invention are shown.
Fig. 5 is the control flow chart that the feeding machine of the control device of mass flow according to an embodiment of the invention is shown.
Fig. 6 is the electrical structure connection layout that PLC and elevator in the control device of mass flow according to an embodiment of the invention are shown.
Fig. 7 is the control flow chart that the elevator of the control device of mass flow according to an embodiment of the invention is shown.
Fig. 8 is the electrical structure connection layout that the control device of mass flow according to an embodiment of the invention is shown.
Fig. 9 is the flow chart that the control method of mass flow according to an embodiment of the invention is shown.
Figure 10 is the flow chart that the control method of mass flow according to an embodiment of the invention is shown.
Detailed description of the invention
Describe various exemplary embodiment of the present invention in detail now with reference to accompanying drawing.It should be noted that: unless illustrate in addition, the parts of setting forth in these embodiments and positioned opposite, numeral expression formula and the numerical value of step do not limit the scope of the invention.
, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not to draw according to actual proportionate relationship meanwhile.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in suitable situation, described technology, method and apparatus should be regarded as authorizing a part for description.
In all examples with discussing shown here, it is exemplary that any occurrence should be construed as merely, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: in similar label and letter accompanying drawing below, represent similar terms, therefore, once be defined in an a certain Xiang Yi accompanying drawing, in accompanying drawing subsequently, do not need it to be further discussed.
In prior art, the flow control process of pipe tobacco material is to pass through successively: feeding machine 101, elevator 102, material-falling hopper 103, material-falling hopper photoelectric tube 104, limited tube 105 and electronic scale 106.
The present inventor finds, in existing control flow, because pipe tobacco will be sent to electronic scale 106 via material-falling hopper 103, limited tube 105, at material-falling hopper, 103 places have carried out flow-control, and do not carry out flow-control for the limited tube 105 between material-falling hopper 103 and electronic scale 106.
This just makes limited tube 105 occur following problem: because the sectional area of limited tube is fixed, in the time that mass flow is larger, when material discharging, often have some setbacks, easily there is putty phenomenon, even pipe tobacco there will be extruding through limited tube, cause pipe tobacco to be made broken, and broken last pipe tobacco does not have use value in cigarette process, affect the stability of technology for making tobacco threds quality, even cause production to stop.
Therefore, the present inventor removes the limited tube in existing volume control device 105, and after dismounting, material-falling hopper 103 is directly sent to electronic scale 106 by pipe tobacco material, can not cause extruding, putty phenomenon.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 2 is the schematic diagram that the control device of mass flow according to an embodiment of the invention is shown.The control device of this mass flow comprises: feeding machine 201, elevator 202, material-falling hopper 203 and electronic scale 206, and wherein elevator 202 is connected with feeding machine 201; Material-falling hopper 203 is positioned at the discharging section of elevator 202, is connected, and is positioned at the top of electronic scale 206 with elevator 202, and for example material-falling hopper 203 can be positioned at approximately 15 centimeters of the tops place of electronic scale 206; Electronic scale 206 is positioned at the discharging section of material-falling hopper 203, directly docks with material-falling hopper 203.
The control device (as shown in Figure 1) of the mass flow compared to existing technology, the control device (as shown in Figure 2) of the mass flow of one embodiment of the present of invention has been removed limited tube, therefore in an embodiment of the present invention, in the time carrying out the control of mass flow, material sends elevator 202 to through feeding machine 201, then elevator 202 sends described material to material-falling hopper 203, and material-falling hopper 203 directly sends described material to described electronic scale 206 subsequently.In the control procedure of above-mentioned mass flow, material does not pass through limited tube of the prior art from material-falling hopper 203, but directly arrive electronic scale 206, therefore can not there is the putty phenomenon of limited tube, and reduce and made brokenly, improve the quality of pipe tobacco, and, owing to having removed limited tube, the height of equipment is also reduced, and then has reduced cost.In addition,, because limited tube generation putty phenomenon can exert an influence to the transport of pipe tobacco, this embodiment of the present invention removes after limited tube, and the stability of flow of tobacco is played to certain improved action.
In one embodiment of the invention, the control device of mass flow of the present invention also comprises: PLC, for example PLC209 as shown in Figure 2, it can be arranged in electrical control cubicles (Fig. 2 is not shown), certainly the position that, it will be understood by those of skill in the art that PLC is not limited in this.PLC209 is electrically connected (not shown in Fig. 2) with electronic scale 206.
The concrete electric connecting relation of PLC and electronic scale can be with reference to shown in Fig. 3.Fig. 3 is the electrical structure connection layout that PLC and electronic scale in the control device of mass flow according to an embodiment of the invention are shown.As shown in Figure 3, electronic scale 206 is installed the first frequency converter 301, the first frequency converters 301 and is electrically connected with PLC209, and the first frequency converter 301 is electrically connected with the first motor 303 of the feed belt of controlling electronic scale.Wherein, receive the frequency signal V1 of the first motor 303 of PLC209 transmission via the first frequency converter 301, and change the frequency of the first motor 303 according to frequency signal V1, so that the first motor 303 is carried out to VFC.After frequency shift due to the first motor 303, drive the travelling speed of the feed belt of its control to change, thereby can change the flow of the pipe tobacco of transport.
Wherein, PLC can calculate or arrange according to actual condition the frequency signal V1 of the first motor 303, and is sent to the first frequency converter.For example, flow sensor is set on electronic scale, flow signal is sent to PLC by flow sensor, and PLC judges whether mass flow is greater than the upper limit or is less than lower limit, if mass flow is greater than the upper limit, the frequency signal of the first motor is set to a; If mass flow is less than lower limit, the frequency signal of the first motor is set to b; If mass flow, between the upper limit and lower limit, can not change the frequency signal of the first motor.In another embodiment, can calculate the frequency signal of the second motor and the frequency signal of the 3rd motor according to the frequency signal after change.Again for example, flow signal is sent to PLC by flow sensor, PLC judges whether mass flow is greater than the upper limit or is less than lower limit, if mass flow is greater than the upper limit or mass flow is less than lower limit, PLC obtains the frequency signal of the first motor of its collection from the first frequency converter, and calculate the frequency signal (feeding machine) of the second motor and the frequency signal (elevator) of the 3rd motor according to gathered frequency signal, obtain the current frequency signal of the first motor, and make feeding machine and/or elevator follow the frequency of electronic scale.
The material flow control device of prior art is the start and stop of directly controlling feeding machine 101 and elevator 102 according to the detection signal of material-falling hopper photoelectric tube 104, start and stop are frequent, cause electronic scale supplied materials amount suddenly big or suddenly small, supplied materials is unstable makes the flowed fluctuation of electronic scale supplied materials large, and flow-control difficulty is large.
In this embodiment of the present invention, by PLC, the first motor 303 is carried out to VFC, so that pipe tobacco mass flow is in control range.
In order to make mass flow control more stable, in embodiments of the invention, also adopt the feeding machine of VFC and/or the elevator of VFC.
Fig. 4 is the electrical structure connection layout that PLC and feeding machine in the control device of mass flow according to an embodiment of the invention are shown.Feeding machine 401 is feeding machines of VFC, and it installs the second frequency converter 4011(as shown in Figure 4), the second frequency converter 4011 is electrically connected with PLC209, and the second frequency converter 4011 is electrically connected with the second motor 4013 of the feed belt of controlling feeding machine 401.
Fig. 5 is the control flow chart that the feeding machine of the control device of mass flow according to an embodiment of the invention is shown.Control procedure below in conjunction with accompanying drawing detailed description with the control device of the mass flow of the feeding machine of VFC.
In step 501, PLC determines the frequency signal V2 of the second motor according to the frequency V1 of the first motor.
In step 502, PLC is sent to frequency signal V2 in the second frequency converter of feeding machine, so that the second motor is carried out to VFC.
Wherein, PLC can determine according to the frequency V1 of the first motor and control coefrficient k2 the frequency V2=k2 × V1 of the second motor, wherein, and 0≤k2≤1.Certainly it should be appreciated by those skilled in the art, the present invention can also adopt other functional relation to determine the frequency V2 of the second motor, and scope of the present invention is not limited in this.Those skilled in the art also will understand, the value of k2 should arrange according to actual condition, to realize mass flow control preferably, for example, according to the deviation of reference measurement values and desired value, progressively adjust control coefrficient k2, make the operation speed of feeding machine can follow in real time the electric machine frequency of electronic scale.For example, when mass flow is 500kg/h(kg/hr) time, k2 can value be 0.63.The scope of above-mentioned control coefrficient k2 is only also exemplary, and scope of the present invention is not limited in this.
In this embodiment of the present invention, by PLC, the second motor 303 is carried out to VFC, make the frequency of the second motor follow the frequency of the first motor, thereby the first motor and the second motor are matched, stablize pipe tobacco transporting velocity, supplied materials flow before electronic scale is more stably supplied with, avoided start and stop frequently to cause the larger fluctuation of electronic scale supplied materials flow, thereby compare flow-control stably.
Fig. 6 is the electrical structure connection layout that PLC and elevator in the control device of mass flow according to an embodiment of the invention are shown.Elevator 601 is elevators of VFC.It installs the 3rd frequency converter 6011, and wherein the 3rd frequency converter 6011 is electrically connected with PLC209, and the 3rd frequency converter 6011 is electrically connected with the 3rd motor 6013 of the feed belt of controlling elevator 601.
Fig. 7 is the control flow chart that the feeding machine of the control device of mass flow according to an embodiment of the invention is shown.Control procedure below in conjunction with accompanying drawing detailed description with the control device of the mass flow of the elevator of VFC.
In step 701, PLC determines the frequency signal V3 of the 3rd motor according to the frequency V1 of the first motor.
In step 702, PLC is sent to frequency signal V3 in the 3rd frequency converter of elevator, so that the 3rd motor is carried out to VFC.
Wherein, PLC can determine according to the frequency V1 of the first motor and control coefrficient k3 the frequency V3=k3 × V1 of the 3rd motor, 0≤k3≤1.Certainly it should be appreciated by those skilled in the art, the present invention can also adopt other functional relation to determine the frequency V3 of the 3rd motor, and scope of the present invention is not limited in this.Those skilled in the art also will understand, and k3 can be identical with k2, also can be different from k2, should determine according to actual condition.For example, according to the deviation of reference measurement values and desired value, progressively adjust control coefrficient k3, make the operation speed of elevator can follow in real time the electric machine frequency of electronic scale.The scope of above-mentioned control coefrficient k3 is only also exemplary, and scope of the present invention is not limited in this.
In this embodiment of the present invention, by PLC, the 3rd motor is carried out to VFC, make the frequency of the 3rd motor follow the frequency of the first motor, thereby the first motor and the 3rd motor are matched, stablize pipe tobacco transporting velocity, supplied materials flow before electronic scale is more stably supplied with, avoided start and stop frequently to cause the larger fluctuation of electronic scale supplied materials flow, thereby compare flow-control stably.
In the embodiment of above-mentioned VFC, directly export by original local switch the connection that is connected to motor, change local switch into and export frequency converter to, then exported to the connected mode of motor by frequency converter.For example, in the embodiment of the present invention, local switch exports the first frequency converter to, exports the first motor to by the first frequency converter.Feeding machine and elevator are had to similar annexation.
Fig. 8 is the electrical structure connection layout that the control device of mass flow according to an embodiment of the invention is shown.As shown in Figure 8, the control device of mass flow comprises the feeding machine 401 of VFC and the elevator 601 of VFC, its two and the electric connecting relation of PLC209 similar with the annexation shown in Fig. 4 and Fig. 6 respectively, repeat no more here.The control device of the mass flow shown in Fig. 8 also comprises material-falling hopper photoelectric tube 204, and wherein material-falling hopper photoelectric tube 204 is electrically connected with PLC209.This material-falling hopper photoelectric tube 204 can be positioned at (as shown in Figure 2) on material-falling hopper 203.Material-falling hopper photoelectric tube 204 is surveyed mass flow in material-falling hopper, and detectable signal is sent to PLC209.PLC judges according to detectable signal in material-falling hopper, whether material reaches rated capacity.In the time reaching rated capacity, feeding machine and elevator are out of service.In the time not reaching rated capacity, feeding machine and elevator continue operation.This embodiment can control the start and stop of feeding machine and elevator.
Prior art material flow control device is the start and stop of directly controlling feeding machine 101 and elevator 102 according to the detection signal of material-falling hopper photoelectric tube 104, start and stop are frequent, cause electronic scale supplied materials amount suddenly big or suddenly small, supplied materials is unstable makes the flowed fluctuation of electronic scale supplied materials large, and flow-control difficulty is large.
In this embodiment, after removing limited tube, can play certain improved action to the stability of flow of tobacco.Therefore, frequent start-stop situation compared to existing technology, also has certain improvement.In addition, this embodiment can also control the start and stop of feeding machine 401 and elevator 601 on the basis of VFC, because VFC can be controlled mass flow, therefore, has reduced the start-stop time of feeding machine 401 and elevator 601.For example, in the time that mass flow is larger, if adopt the mode of prior art, directly stop the transport of feeding machine and elevator, and in embodiments of the invention, can, in the time that mass flow is larger, reduce the frequency of material machine and elevator.Therefore, do not need directly to stop the transport of feeding machine and elevator, reduced start-stop time.
It should be appreciated by those skilled in the art, the electrical connection described in various embodiment of the present invention can for example, connect for wired (passing through electric wire), also can for example, for wireless (passing through wireless communication technology) connects, and therefore scope of the present invention is not limited in this.
Fig. 9 is the flow chart that the control method of mass flow according to an embodiment of the invention is shown.The method comprises:
In step 91, material sends elevator to through feeding machine.
In step 92, described elevator sends described material to material-falling hopper.
In step 93, described material-falling hopper is positioned at the top of electronic scale, and directly sends described material to described electronic scale.
In an embodiment of the present invention, in the time carrying out the control of mass flow, material sends elevator 202 to through feeding machine 201, and then elevator 202 sends described material to material-falling hopper 203, and material-falling hopper 203 directly sends described material to described electronic scale 206 subsequently.In the control procedure of above-mentioned mass flow, material does not pass through limited tube of the prior art from material-falling hopper 203, but directly arrive electronic scale 206, therefore can not there is the putty phenomenon of limited tube, and reduce and made brokenly, improve the quality of pipe tobacco, and, owing to having removed limited tube, the height of equipment is also reduced, and then has reduced cost.
In embodiments of the present invention, the first frequency converter is installed on described electronic scale, described the first frequency converter is electrically connected with the first motor of the feed belt of controlling described electronic scale;
Receive the frequency signal V1 of described first motor of PLC transmission via described the first frequency converter, and change the frequency of described the first motor according to described frequency signal V1, so that the first motor is carried out to VFC.
Wherein, described material is sent to the operation of described electronic scale, also comprise: PLC judges whether to carry out VFC, if carry out VFC, can calculate or first frequency signal V1 is set according to actual condition, and be sent to described the first frequency converter.For example, PLC can judge whether flow exceedes the upper limit or be less than lower limit according to the flow sensor on electronic scale, if so, needs to carry out VFC, first frequency signal V1 now can be set, or obtain first frequency signal V1 from the first frequency converter collection.
In embodiments of the present invention, at described feeding machine, the second frequency converter is installed, described the second frequency converter is electrically connected with the second motor of the feed belt of controlling described feeding machine; Receive the frequency signal V2 of described second motor of PLC transmission via described the second frequency converter, and change the frequency of described the second motor according to described frequency signal V2; And/or
At described hoist installation the 3rd frequency converter, described the 3rd frequency converter is electrically connected with the 3rd motor of the feed belt of controlling described elevator; Receive the frequency signal V3 of described the 3rd motor of PLC transmission via described the 3rd frequency converter, and change the frequency of described the 3rd motor according to described frequency signal V3.
Wherein, the frequency signal V2=k2 × V1 of described the second motor, 0≤k2≤1; And/or the frequency signal V3=k3 × V1 of described the 3rd motor, 0≤k3≤1.
In this embodiment of the present invention, by PLC, the second motor, the 3rd motor are carried out to VFC, make the frequency of the second motor, the 3rd motor follow the frequency of the first motor, thereby the first motor and the second motor, the 3rd motor are matched, compare flow-control stably.
In embodiments of the present invention, described material is sent to the operation of material-falling hopper, also comprise: material-falling hopper photoelectric tube is surveyed mass flow in described material-falling hopper, and detectable signal is sent to described PLC; Described PLC judges according to described detectable signal in described material-falling hopper, whether material reaches rated capacity, if reach rated capacity, described feeding machine and elevator are out of service; If while not reaching rated capacity, feeding machine and elevator continue operation.
Figure 10 is the flow chart that the control method of mass flow according to an embodiment of the invention is shown.
In step 1001, material-falling hopper photoelectric tube is surveyed mass flow in material-falling hopper, and detectable signal is sent to PLC.
In step 1002, PLC judges according to detectable signal in material-falling hopper, whether material reaches rated capacity.In the time reaching rated capacity, process enters step 1006; In the time not reaching rated capacity, process enters step 1003.
In step 1003, PLC judges whether to carry out VFC, if so, and execution step 1004, otherwise, execution step 1001.
In step 1004, PLC calculates respectively the frequency signal V2=k2 × V1 of feeding machine and the frequency signal V3=k3 × V1 of elevator according to the frequency signal V1 of electronic scale and control coefrficient k2 and k3.
In step 1005, PLC is sent to frequency signal V2 in the motor of feeding machine, frequency signal V3 is sent to the motor of elevator, and then changes the transfer rate of the feed belt that the motor of feeding machine and the motor of elevator control respectively, realize the real-time control of mass flow.
In step 1006, feeding machine and elevator are out of service.
By the VFC to feeding machine and elevator in embodiments of the invention, make the start and stop of feeding machine and elevator no longer frequent, and then make the stability of flow of material, no longer there is the suddenly big or suddenly small situation of supplied materials amount of electronic scale, the control of mass flow improves, and is conducive to the raising of stable, the tobacco quality of apparatus system.
Although specific embodiments more of the present invention are had been described in detail by example, it should be appreciated by those skilled in the art, above example is only in order to describe, instead of in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above embodiment be modified.Scope of the present invention is limited by claims.
Claims (13)
1. a control device for mass flow, is characterized in that, comprising:
Feeding machine,
Elevator, is connected with described feeding machine;
Material-falling hopper, is connected with described elevator, and is positioned at the top of electronic scale;
Electronic scale, is positioned at the discharging section of described material-falling hopper, directly docks with described material-falling hopper.
2. control device according to claim 1, is characterized in that, also comprises:
PLC, is electrically connected with described electronic scale.
3. control device according to claim 2, is characterized in that, also comprises:
Described electronic scale is installed the first frequency converter, and described the first frequency converter is electrically connected with described PLC, and described the first frequency converter is electrically connected with the first motor of the feed belt of controlling described electronic scale.
4. control device according to claim 3, is characterized in that, also comprises:
Described feeding machine is installed the second frequency converter, and described the second frequency converter is electrically connected with described PLC, and described the second frequency converter is electrically connected with the second motor of the feed belt of controlling described feeding machine;
And/or
Described hoist installation the 3rd frequency converter, described the 3rd frequency converter is electrically connected with described PLC, and described the 3rd frequency converter is electrically connected with the 3rd motor of the feed belt of controlling described elevator.
5. control device according to claim 4, is characterized in that, also comprises:
Described the first frequency converter receives the frequency signal V1 of described first motor of described PLC transmission, and changes the frequency of described the first motor according to described frequency signal V1.
6. control device according to claim 5, is characterized in that, comprising:
Described PLC calculates the frequency signal V2 of described the second motor according to the frequency signal V1 of described the first motor, and is sent to described the second frequency converter;
And/or
Described PLC calculates the frequency signal V3 of described the 3rd motor according to the frequency signal V1 of described the first motor, and is sent to described the 3rd frequency converter.
7. control device according to claim 6, is characterized in that, comprising:
Frequency signal V2=k2 × the V1 of described the second motor, 0≤k2≤1;
And/or
Frequency signal V3=k3 × the V1 of described the 3rd motor, 0≤k3≤1.
8. according to the arbitrary described control device of claim 2 to 7, it is characterized in that, also comprise:
Material-falling hopper photoelectric tube, is positioned on described material-falling hopper, is electrically connected with described PLC.
9. a control method for mass flow, is characterized in that, comprising:
Material sends elevator to through feeding machine;
Described elevator sends described material to material-falling hopper;
Described material-falling hopper is positioned at the top of electronic scale, and directly sends described material to described electronic scale.
10. control method according to claim 9, is characterized in that, also comprises:
The first frequency converter is installed on described electronic scale, and described the first frequency converter is electrically connected with the first motor of the feed belt of controlling described electronic scale;
Receive the frequency signal V1 of described first motor of PLC transmission via described the first frequency converter, and change the frequency of described the first motor according to described frequency signal V1.
11. control methods according to claim 10, is characterized in that, also comprise:
At described feeding machine, the second frequency converter is installed, described the second frequency converter is electrically connected with the second motor of the feed belt of controlling described feeding machine;
Receive the frequency signal V2 of described second motor of PLC transmission via described the second frequency converter, and change the frequency of described the second motor according to described frequency signal V2;
And/or
At described hoist installation the 3rd frequency converter, described the 3rd frequency converter is electrically connected with the 3rd motor of the feed belt of controlling described elevator;
Receive the frequency signal V3 of described the 3rd motor of PLC transmission via described the 3rd frequency converter, and change the frequency of described the 3rd motor according to described frequency signal V3.
12. according to control method described in claim 11, it is characterized in that, comprising:
Frequency signal V2=k2 × the V1 of described the second motor, 0≤k2≤1;
And/or
Frequency signal V3=k3 × the V1 of described the 3rd motor, 0≤k3≤1.
13. according to the arbitrary described control method of claim 9 to 12, it is characterized in that, also comprises:
Material-falling hopper photoelectric tube is surveyed mass flow in described material-falling hopper, and detectable signal is sent to described PLC;
Described PLC judges according to described detectable signal in described material-falling hopper, whether material reaches rated capacity, if reach rated capacity, described feeding machine and elevator are out of service; If while not reaching rated capacity, feeding machine and elevator continue operation.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261088A (en) * | 2014-08-13 | 2015-01-07 | 上海烟草集团有限责任公司 | Tobacco shred production line automatic drawing and stopping control system and method |
| CN105109955A (en) * | 2015-08-12 | 2015-12-02 | 江苏中烟工业有限责任公司 | Feeder flow automatic control method in tobacco primary processing line |
| CN108177948A (en) * | 2017-12-27 | 2018-06-19 | 广东中烟工业有限责任公司 | A kind of elevator belt control method of pipe tobacco transport device |
| CN108455298A (en) * | 2018-03-08 | 2018-08-28 | 红云红河烟草(集团)有限责任公司 | A kind of adaptive conveyance control method of filter stick disk discharging machine |
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| CN112707113A (en) * | 2020-12-23 | 2021-04-27 | 红塔烟草(集团)有限责任公司 | Start-stop control method and device for spreading vehicle of feeding machine |
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| CN114947163A (en) * | 2022-05-05 | 2022-08-30 | 河北白沙烟草有限责任公司保定卷烟厂 | Tobacco shred constant flow control method and device based on tobacco shred production line |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2027914A6 (en) * | 1991-01-28 | 1992-06-16 | Balaguer Maquina De Envase Y E | Improved multiple weighing machine |
| CN101254022A (en) * | 2008-04-21 | 2008-09-03 | 中国烟草总公司郑州烟草研究院 | Smoked sheet multiple roasting method and special-purpose equipment thereof |
| CN101934930A (en) * | 2010-08-11 | 2011-01-05 | 河南中烟工业有限责任公司 | Method for controlling material flow balance without quantitative feed pipe |
| CN202476417U (en) * | 2012-01-12 | 2012-10-10 | 湖北中烟工业有限责任公司 | Novel tobacco shred mixing control system |
| CN202542413U (en) * | 2012-03-14 | 2012-11-21 | 福建中烟工业有限责任公司 | Discharge constant flow improvement device for feeder |
| CN203986067U (en) * | 2014-04-11 | 2014-12-10 | 龙岩烟草工业有限责任公司 | A kind of control device of mass flow |
-
2014
- 2014-04-11 CN CN201410142589.9A patent/CN103876277B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2027914A6 (en) * | 1991-01-28 | 1992-06-16 | Balaguer Maquina De Envase Y E | Improved multiple weighing machine |
| CN101254022A (en) * | 2008-04-21 | 2008-09-03 | 中国烟草总公司郑州烟草研究院 | Smoked sheet multiple roasting method and special-purpose equipment thereof |
| CN101934930A (en) * | 2010-08-11 | 2011-01-05 | 河南中烟工业有限责任公司 | Method for controlling material flow balance without quantitative feed pipe |
| CN202476417U (en) * | 2012-01-12 | 2012-10-10 | 湖北中烟工业有限责任公司 | Novel tobacco shred mixing control system |
| CN202542413U (en) * | 2012-03-14 | 2012-11-21 | 福建中烟工业有限责任公司 | Discharge constant flow improvement device for feeder |
| CN203986067U (en) * | 2014-04-11 | 2014-12-10 | 龙岩烟草工业有限责任公司 | A kind of control device of mass flow |
Cited By (17)
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|---|---|---|---|---|
| CN104261088A (en) * | 2014-08-13 | 2015-01-07 | 上海烟草集团有限责任公司 | Tobacco shred production line automatic drawing and stopping control system and method |
| CN104261088B (en) * | 2014-08-13 | 2016-08-24 | 上海烟草集团有限责任公司 | Tobacco shred production line automatically draws and stops control system and control method |
| CN105109955A (en) * | 2015-08-12 | 2015-12-02 | 江苏中烟工业有限责任公司 | Feeder flow automatic control method in tobacco primary processing line |
| CN108177948A (en) * | 2017-12-27 | 2018-06-19 | 广东中烟工业有限责任公司 | A kind of elevator belt control method of pipe tobacco transport device |
| CN108455298A (en) * | 2018-03-08 | 2018-08-28 | 红云红河烟草(集团)有限责任公司 | A kind of adaptive conveyance control method of filter stick disk discharging machine |
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| CN111381568A (en) * | 2018-12-28 | 2020-07-07 | 贵州中烟工业有限责任公司 | Energy-saving control method and device for cut tobacco dryer |
| CN111053288A (en) * | 2019-06-19 | 2020-04-24 | 红云红河烟草(集团)有限责任公司 | Novel tobacco flow control system based on BP neural network |
| CN110558607A (en) * | 2019-08-20 | 2019-12-13 | 河南中烟工业有限责任公司 | Cut tobacco conveying control system and method for ZJ17 cigarette making machine |
| CN110558607B (en) * | 2019-08-20 | 2023-11-21 | 河南中烟工业有限责任公司 | Cut tobacco conveying control system and method of ZJ17 cigarette making machine |
| CN112707113A (en) * | 2020-12-23 | 2021-04-27 | 红塔烟草(集团)有限责任公司 | Start-stop control method and device for spreading vehicle of feeding machine |
| CN112758635A (en) * | 2021-01-20 | 2021-05-07 | 江西中烟工业有限责任公司 | Roller type servo drive control method for thread feeding machine of cigarette making machine set |
| CN112758635B (en) * | 2021-01-20 | 2022-04-29 | 江西中烟工业有限责任公司 | Roller type servo drive control method for thread feeding machine of cigarette making machine set |
| CN114947163A (en) * | 2022-05-05 | 2022-08-30 | 河北白沙烟草有限责任公司保定卷烟厂 | Tobacco shred constant flow control method and device based on tobacco shred production line |
| CN114947163B (en) * | 2022-05-05 | 2022-12-27 | 河北白沙烟草有限责任公司保定卷烟厂 | Tobacco shred constant flow control method and device based on tobacco shred production line |
| CN114873190A (en) * | 2022-05-11 | 2022-08-09 | 河北白沙烟草有限责任公司 | Error-preventing monitoring device and method for putting tobacco shreds into cabinet |
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