CN103876277B - A kind of control device of mass flow and method - Google Patents
A kind of control device of mass flow and method Download PDFInfo
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- CN103876277B CN103876277B CN201410142589.9A CN201410142589A CN103876277B CN 103876277 B CN103876277 B CN 103876277B CN 201410142589 A CN201410142589 A CN 201410142589A CN 103876277 B CN103876277 B CN 103876277B
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Abstract
The invention discloses a kind of control device and method of mass flow, this device comprises feeding machine, elevator, material-falling hopper, electronic scale.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.Feeding machine can adopt the feeding machine of VFC, and/or elevator can adopt the elevator of VFC.The present invention reduces pipe tobacco makes broken, reduces device height, decreases cost, improves the stability of mass flow.
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, it is indispensable controlling unit that mass flow controls.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 place is 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.
Pipe tobacco material is from the process of feeding machine 101 to cylinder 107, whether material-falling hopper photoelectric tube 104 can detect has pipe tobacco, programmable logic controller (PLC) (Programmable LogicController, whether the detection signal PLC) by gathering material-falling hopper photoelectric tube 104 detects material-falling hopper 103 place has pipe tobacco, if there is no pipe tobacco, then start the belt motor of elevator 101 and feeding machine 102, feeding tobacco-thread is to electronic scale 106, if there is pipe tobacco, then stop the belt motor of elevator 101 and feeding machine 102, stop charging.By this control mode, ensure that electronic scale has material all the time, avoid 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 therefore proposes 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, be electrically connected with described electronic scale.
Further, also comprise: the first frequency converter installed by described electronic scale, described first frequency converter is electrically connected with described PLC, and described first frequency converter is electrically connected with the first motor of the feed belt controlling described electronic scale.
Further, also comprise: described feeding machine installs the second frequency converter, described second frequency converter is electrically connected with described PLC, and described second frequency converter is electrically connected with the second motor of the feed belt controlling described feeding machine;
And/or
Described hoist installation the 3rd frequency converter, described 3rd frequency converter is electrically connected with described PLC, and described 3rd frequency converter is electrically connected with the 3rd motor of the feed belt controlling described elevator.
Further, also comprise: described first frequency converter receives the frequency signal V1 of described first motor that described PLC transmits, and change the frequency of described first motor according to described frequency signal V1.
Further, comprising: described PLC calculates the frequency signal V2 of described second motor according to the frequency signal V1 of described first motor, and is sent to described second frequency converter;
And/or
Described PLC calculates the frequency signal V3 of described 3rd motor according to the frequency signal V1 of described first motor, and is sent to described 3rd frequency converter.
Further, comprising: the frequency signal V2=k2 × V1 of described second motor, 0≤k2≤1; And/or the frequency signal V3=k3 × V1 of described 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: on described electronic scale, install the first frequency converter, described first frequency converter is electrically connected with the first motor of the feed belt controlling described electronic scale;
Receive the frequency signal V1 of described first motor that PLC transmits via described first frequency converter, and change the frequency of described first motor according to described frequency signal V1.
Further, also comprise: install the second frequency converter at described feeding machine, described second frequency converter is electrically connected with the second motor of the feed belt controlling described feeding machine;
Receive the frequency signal V2 of described second motor that PLC transmits via described second frequency converter, and change the frequency of described second motor according to described frequency signal V2;
And/or
At described hoist installation the 3rd frequency converter, described 3rd frequency converter is electrically connected with the 3rd motor of the feed belt controlling described elevator;
Receive the frequency signal V3 of described 3rd motor that PLC transmits via described 3rd frequency converter, and change the frequency of described 3rd motor according to described frequency signal V3.
Further, comprising: the frequency signal V2=k2 × V1 of described second motor, 0≤k2≤1; And/or the frequency signal V3=k3 × V1 of described 3rd motor, 0≤k3≤1.
Further, also comprise: material-falling hopper photoelectric tube detects mass flow in described material-falling hopper, and detectable signal is sent to described PLC;
According to described detectable signal, described PLC judges in described material-falling hopper, whether material reaches rated capacity, if reach rated capacity, described feeding machine and elevator out of service; If when not reaching rated capacity, feeding machine and elevator continue to run.
The present invention by directly being docked with electronic scale by material-falling hopper, simplifies technological process, reduces the height of equipment, reduce costs, and decreases pipe tobacco and make broken, prevents putty phenomenon.In addition, the present invention adopts VFC to feed arrangement (such as feeding machine and elevator), optimizes the control of mass flow, makes supplied materials more stable.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present invention, further feature of the present invention and advantage thereof will become clear.
Accompanying drawing explanation
What form a part for description drawings describes 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, clearly the present invention can be understood, wherein:
Fig. 1 is the schematic diagram of the control device that mass flow of the prior art is shown.
Fig. 2 is the schematic diagram of the control device that mass flow according to an embodiment of the invention is shown.
Fig. 3 is the electrical structure connection layout of PLC and electronic scale in the control device that mass flow according to an embodiment of the invention is shown.
Fig. 4 is the electrical structure connection layout of PLC and feeding machine in the control device that mass flow according to an embodiment of the invention is shown.
Fig. 5 is the control flow chart of the feeding machine of the control device that mass flow according to an embodiment of the invention is shown.
Fig. 6 is the electrical structure connection layout of PLC and elevator in the control device that mass flow according to an embodiment of the invention is shown.
Fig. 7 is the control flow chart of the elevator of the control device that mass flow according to an embodiment of the invention is shown.
Fig. 8 is the electrical structure connection layout of the control device that mass flow according to an embodiment of the invention is shown.
Fig. 9 is the flow chart of the control method that mass flow according to an embodiment of the invention is shown.
Figure 10 is the flow chart of the control method that mass flow according to an embodiment of the invention is shown.
Detailed description of the invention
Various exemplary embodiment of the present invention is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
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 the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing description.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
In prior art, the flow control process of pipe tobacco material passes 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, place has carried out flow-control, and does not carry out flow-control for the limited tube 105 between material-falling hopper 103 and electronic scale 106.
This is with regard to the following problem that made limited tube 105 occur: because the sectional area of limited tube is fixed, when mass flow is larger, often have some setbacks during material discharging, easy generation 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 producing stopping.
Therefore, the limited tube 105 in existing volume control device is removed by the present inventor, and after dismounting, pipe tobacco material is directly sent to electronic scale 106 by material-falling hopper 103, can not cause extruding, putty phenomenon.
For making the object, technical solutions and advantages of the present invention clearly understand, 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 of the control device that 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 with elevator 202, and is positioned at the top of electronic scale 206, and such as material-falling hopper 203 can be positioned at about 15 centimeters, the top 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, limited tube removed by the control device (as shown in Figure 2) of the mass flow of one embodiment of the present of invention, therefore in an embodiment of the present invention, when 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 from material-falling hopper 203 not through limited tube of the prior art, but directly arrive electronic scale 206, therefore can not there is the putty phenomenon of limited tube, and decrease and make broken, improve the quality of pipe tobacco, and, owing to eliminating limited tube, the height of equipment is also reduced, and then reduces cost.In addition, because limited tube generation putty phenomenon can have an impact to the transport of pipe tobacco, this embodiment of the present invention plays certain improved action to the stability of flow of tobacco after removing limited tube.
In one embodiment of the invention, the control device of mass flow of the present invention also comprises: PLC, such as PLC209 as shown in Figure 2, it can be arranged in electrical control cubicles (Fig. 2 is not shown), certainly, it will be understood by those of skill in the art that the position of PLC is not limited in this.PLC209 is electrically connected with electronic scale 206 (not shown in Fig. 2).
The concrete electric connecting relation of PLC and electronic scale can with reference to shown in Fig. 3.Fig. 3 is the electrical structure connection layout of PLC and electronic scale in the control device that mass flow according to an embodiment of the invention is shown.As shown in Figure 3, electronic scale 206 is installed the first frequency converter 301, first frequency converter 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 controlling electronic scale.Wherein, receive the frequency signal V1 of the first motor 303 that PLC209 transmits via the first frequency converter 301, and change the frequency of the first motor 303 according to frequency signal V1, to carry out VFC to the first motor 303.After frequency shift due to the first motor 303, the travelling speed of the feed belt driving it to control changes, thus can change the flow of the pipe tobacco of transport.
Wherein, PLC can calculate according to actual condition or arrange the frequency signal V1 of the first motor 303, and is sent to the first frequency converter.Such as, electronic scale arranges flow sensor, 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 is between the upper limit and lower limit, the frequency signal of the first motor can not be changed.In another embodiment, the frequency signal of the second motor and the frequency signal of the 3rd motor can be calculated according to the frequency signal after change.Again such as, 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 that it gathers 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, namely obtain the ongoing 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 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 to carry out doses suddenly big or suddenly small, supplied materials instability 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, VFC is carried out to the first motor 303, to make pipe tobacco mass flow in control range.
More stable in order to make mass flow control, also adopt the feeding machine of VFC and/or the elevator of VFC in embodiments of the invention.
Fig. 4 is the electrical structure connection layout of PLC and feeding machine in the control device that mass flow according to an embodiment of the invention is 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 controlling feeding machine 401.
Fig. 5 is the control flow chart of the feeding machine of the control device that mass flow according to an embodiment of the invention is shown.The control procedure with the control device of the mass flow of the feeding machine of VFC is described in detail below in conjunction with accompanying drawing.
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, frequency signal V2 is sent to the second frequency converter of feeding machine by PLC, to carry out VFC to the second motor.
Wherein, PLC can determine the frequency V2=k2 × V1 of the second motor according to the frequency V1 of the first motor and control coefrficient k2, 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 be arranged according to actual condition, control to realize mass flow preferably, such as, 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 the electric machine frequency of electronic scale in real time.Such as, when mass flow is 500kg/h(kg/hr) time, k2 can value be 0.63.The scope of above-mentioned control coefrficient k2 is also only exemplary, and scope of the present invention is not limited in this.
In this embodiment of the present invention, by PLC, VFC is carried out to the second motor 303, make the frequency of frequency following first motor of the second motor, thus the first motor and the second motor are matched, stablize pipe tobacco transporting velocity, supplied materials flow before electronic scale is more stably supplied, avoids start and stop frequently to cause the larger fluctuation of electronic scale supplied materials flow, thus compare stable flow-control.
Fig. 6 is the electrical structure connection layout of PLC and elevator in the control device that mass flow according to an embodiment of the invention is 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 controlling elevator 601.
Fig. 7 is the control flow chart of the feeding machine of the control device that mass flow according to an embodiment of the invention is shown.The control procedure with the control device of the mass flow of the elevator of VFC is described in detail below in conjunction with accompanying drawing.
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, frequency signal V3 is sent to the 3rd frequency converter of elevator by PLC, to carry out VFC to the 3rd motor.
Wherein, PLC can determine the frequency V3=k3 × V1 of the 3rd motor according to the frequency V1 of the first motor and control coefrficient k3,0≤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.Such as, according to the deviation of reference measurement values and desired value, progressively adjust control coefrficient k3, make the operation speed of elevator can follow the electric machine frequency of electronic scale in real time.The scope of above-mentioned control coefrficient k3 is also only exemplary, and scope of the present invention is not limited in this.
In this embodiment of the present invention, by PLC, VFC is carried out to the 3rd motor, make the frequency of frequency following first motor of the 3rd motor, thus the first motor and the 3rd motor are matched, stablize pipe tobacco transporting velocity, supplied materials flow before electronic scale is more stably supplied, avoids start and stop frequently to cause the larger fluctuation of electronic scale supplied materials flow, thus compare stable flow-control.
In the embodiment of above-mentioned VFC, directly export by original local switch the connection being connected to motor, change local switch into and export frequency converter to, then export the connected mode of motor to by frequency converter.Such as, 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.To feeding machine and elevator, there is similar annexation.
Fig. 8 is the electrical structure connection layout of the control device that 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, similar with the annexation shown in Fig. 4 and Fig. 6 respectively with the electric connecting relation of PLC209 both it, repeats 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 detects mass flow in material-falling hopper, and detectable signal is sent to PLC209.According to detectable signal, PLC judges in material-falling hopper, whether material reaches rated capacity.When reaching rated capacity, feeding machine and elevator out of service.When not reaching rated capacity, feeding machine and elevator continue to run.This embodiment can control the start and stop of feeding machine and elevator.
Prior art material flow control device is the start and stop 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 to carry out doses suddenly big or suddenly small, supplied materials instability makes the flowed fluctuation of electronic scale supplied materials large, and flow-control difficulty is large.
In this embodiment, certain improved action can be played to the stability of flow of tobacco after removing limited tube.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 control mass flow, therefore, decreases the start-stop time of feeding machine 401 and elevator 601.Such as, when mass flow is larger, if adopt the mode of prior art, then directly stops the transport of feeding machine and elevator, and in embodiments of the invention, when mass flow is larger, the frequency of material machine and elevator can be reduced.Therefore, do not need the transport directly stopping feeding machine and elevator, decrease 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 connect for wired (such as passing through electric wire), and also can connect for wireless (such as passing through wireless communication technology), therefore scope of the present invention is not limited in this.
Fig. 9 is the flow chart of the control method that 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, when 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 from material-falling hopper 203 not through limited tube of the prior art, but directly arrive electronic scale 206, therefore can not there is the putty phenomenon of limited tube, and decrease and make broken, improve the quality of pipe tobacco, and, owing to eliminating limited tube, the height of equipment is also reduced, and then reduces cost.
In embodiments of the present invention, described electronic scale is installed the first frequency converter, described first frequency converter is electrically connected with the first motor of the feed belt controlling described electronic scale;
Receive the frequency signal V1 of described first motor that PLC transmits via described first frequency converter, and change the frequency of described first motor according to described frequency signal V1, to carry out VFC to the first motor.
Wherein, described material is sent to the operation of described electronic scale, also comprise: PLC judges whether to carry out VFC, if will VFC be carried out, then can calculate according to actual condition or first frequency signal V1 is set, and be sent to described first frequency converter.Such as, PLC can judge according to the flow sensor on electronic scale whether flow exceedes the upper limit or be less than lower limit, if so, then 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, install the second frequency converter at described feeding machine, described second frequency converter is electrically connected with the second motor of the feed belt controlling described feeding machine; Receive the frequency signal V2 of described second motor that PLC transmits via described second frequency converter, and change the frequency of described second motor according to described frequency signal V2; And/or
At described hoist installation the 3rd frequency converter, described 3rd frequency converter is electrically connected with the 3rd motor of the feed belt controlling described elevator; Receive the frequency signal V3 of described 3rd motor that PLC transmits via described 3rd frequency converter, and change the frequency of described 3rd motor according to described frequency signal V3.
Wherein, the frequency signal V2=k2 × V1 of described second motor, 0≤k2≤1; And/or the frequency signal V3=k3 × V1 of described 3rd motor, 0≤k3≤1.
In this embodiment of the present invention, by PLC, VFC is carried out to the second motor, the 3rd motor, make the frequency of frequency following first motor of the second motor, the 3rd motor, thus the first motor and the second motor, the 3rd motor are matched, compare stable flow-control.
In embodiments of the present invention, described material is sent to the operation of material-falling hopper, also comprise: material-falling hopper photoelectric tube detects mass flow in described material-falling hopper, and detectable signal is sent to described PLC; According to described detectable signal, described PLC judges in described material-falling hopper, whether material reaches rated capacity, if reach rated capacity, described feeding machine and elevator out of service; If when not reaching rated capacity, feeding machine and elevator continue to run.
Figure 10 is the flow chart of the control method that mass flow according to an embodiment of the invention is shown.
In step 1001, mass flow in material-falling hopper photoelectric tube detection material-falling hopper, and detectable signal is sent to PLC.
In step 1002, according to detectable signal, PLC judges in material-falling hopper, whether material reaches rated capacity.When reaching rated capacity, process enters step 1006; When not reaching rated capacity, process enters step 1003.
In step 1003, PLC judges whether to carry out VFC, if so, performs step 1004, otherwise, perform step 1001.
In step 1004, PLC calculates the frequency signal V2=k2 × V1 of feeding machine and the frequency signal V3=k3 × V1 of elevator respectively according to the frequency signal V1 of electronic scale and control coefrficient k2 and k3.
In step 1005, frequency signal V2 is sent to the motor of feeding machine by PLC, 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 out of service.
By in embodiments of the invention to the VFC of feeding machine and elevator, make the start and stop of feeding machine and elevator no longer frequent, and then make the stability of flow of material, what electronic scale no longer occurred carrys out the suddenly big or suddenly small situation of doses, the control of mass flow improves, and is conducive to the raising of stable, the tobacco quality of apparatus system.
Although be described in detail specific embodiments more of the present invention by example, it should be appreciated by those skilled in the art, above example is only to be described, 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 (8)
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;
PLC, is electrically connected with described electronic scale;
Wherein, the first frequency converter installed by described electronic scale, and described first frequency converter is electrically connected with described PLC, and described first frequency converter is electrically connected with the first motor of the feed belt controlling described electronic scale;
Described feeding machine installs the second frequency converter, and described second frequency converter is electrically connected with described PLC, and described second frequency converter is electrically connected with the second motor of the feed belt controlling described feeding machine;
And/or
Described hoist installation the 3rd frequency converter, described 3rd frequency converter is electrically connected with described PLC, and described 3rd frequency converter is electrically connected with the 3rd motor of the feed belt controlling described elevator;
Electronic scale arranges flow sensor, flow signal is sent to PLC by described flow sensor, described 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, described PLC obtains the frequency signal of the first motor from the first frequency converter, and calculates the frequency signal of the second motor and the frequency signal of the 3rd motor according to gathered frequency signal.
2. control device according to claim 1, is characterized in that, also comprise:
Described first frequency converter receives the frequency signal V1 of described first motor that described PLC transmits, and changes the frequency of described first motor according to described frequency signal V1.
3. control device according to claim 2, is characterized in that, comprising:
Described PLC calculates the frequency signal V2 of described second motor according to the frequency signal V1 of described first motor, and is sent to described second frequency converter;
And/or
Described PLC calculates the frequency signal V3 of described 3rd motor according to the frequency signal V1 of described first motor, and is sent to described 3rd frequency converter.
4. control device according to claim 3, is characterized in that, comprising:
Frequency signal V2=k2 × the V1 of described second motor, 0≤k2≤1;
And/or
Frequency signal V3=k3 × the V1 of described 3rd motor, 0≤k3≤1.
5., according to the arbitrary described control device of Claims 1-4, 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.
6. 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;
Wherein, described electronic scale is installed the first frequency converter, described first frequency converter is electrically connected with the first motor of the feed belt controlling described electronic scale;
Receive the frequency signal V1 of described first motor that PLC transmits via described first frequency converter, and change the frequency of described first motor according to described frequency signal V1;
Install the second frequency converter at described feeding machine, described second frequency converter is electrically connected with the second motor of the feed belt controlling described feeding machine;
Receive the frequency signal V2 of described second motor that PLC transmits via described second frequency converter, and change the frequency of described second motor according to described frequency signal V2;
And/or
At described hoist installation the 3rd frequency converter, described 3rd frequency converter is electrically connected with the 3rd motor of the feed belt controlling described elevator;
Receive the frequency signal V3 of described 3rd motor that PLC transmits via described 3rd frequency converter, and change the frequency of described 3rd motor according to described frequency signal V3;
Electronic scale arranges flow sensor, flow signal is sent to PLC by described flow sensor, described 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, described PLC obtains the frequency signal of the first motor from the first frequency converter, and calculates the frequency signal of the second motor and the frequency signal of the 3rd motor according to gathered frequency signal.
7. control method according to claim 6, is characterized in that, comprising:
Frequency signal V2=k2 × the V1 of described second motor, 0≤k2≤1;
And/or
Frequency signal V3=k3 × the V1 of described 3rd motor, 0≤k3≤1.
8., according to the arbitrary described control method of claim 6 to 7, it is characterized in that, also comprise:
Material-falling hopper photoelectric tube detects mass flow in described material-falling hopper, and detectable signal is sent to described PLC;
According to described detectable signal, described PLC judges in described material-falling hopper, whether material reaches rated capacity, if reach rated capacity, described feeding machine and elevator out of service; If when not reaching rated capacity, feeding machine and elevator continue to run.
Priority Applications (1)
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| 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 |
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| CN112707113B (en) * | 2020-12-23 | 2023-05-12 | 红塔烟草(集团)有限责任公司 | Method and device for controlling start and stop of feeding machine skip car |
| 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 |
| 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 |
| CN114873190B (en) * | 2022-05-11 | 2024-05-07 | 河北白沙烟草有限责任公司 | Error-preventing monitoring device and method for tobacco shred entering cabinet |
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 |
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