CN110902311A - Flexible distribution control system and control method for special-shaped cigarettes - Google Patents
Flexible distribution control system and control method for special-shaped cigarettes Download PDFInfo
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000004044 response Effects 0.000 claims abstract description 3
- 230000001133 acceleration Effects 0.000 claims description 16
- 238000004458 analytical method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000306 component Substances 0.000 description 8
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- 241000208125 Nicotiana Species 0.000 description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 4
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/42—Devices for emptying otherwise than from the top using belt or chain conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
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- Mechanical Engineering (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Wrapping Of Specific Fragile Articles (AREA)
Abstract
The invention discloses a special-shaped cigarette flexible distribution control system and a control method. The control system comprises a PLC (programmable logic controller), a field bus assembly module, a motor driving module, a data acquisition I/O (input/output) module, a sensing detection mechanism and a position tracking device; and according to the flexible control algorithm, corresponding response processing is carried out, and flexible shunting data are generated and transmitted to the motor driving module corresponding to each distribution channel. Before sorting, the upper computer sends the distributed special-shaped cigarette brands to the PLC, the PLC searches the weight and size data related to the brands in a data table of the PLC according to the brands of the special-shaped cigarettes, then obtains the control parameters of each distribution channel of each sorting device according to a flexible control algorithm, distributes the parameters to the motor driving module of each distribution channel through the field bus component module, and when sorting is carried out, the motor driving module executes distribution of the special-shaped cigarettes according to the movement track formed by the parameters.
Description
Technical Field
The invention relates to a tobacco distribution control system and a control method for a tobacco distribution center, in particular to a flexible distribution control system and a control method for special-shaped cigarettes.
Background
Along with the continuous rising of the output of the special-shaped cigarettes, the requirement for automatic sorting of the special-shaped cigarettes is increasing, but due to the fact that the special overall dimension, weight and other characteristics of the special-shaped cigarettes enable the existing automatic sorting technology to have many leaks and defects, the problems that the automatic sorting system is prone to blocking cigarettes, losing cigarettes and the like are caused, the failure rate and the cigarette loss become the largest problems of the existing system, and therefore a control system and a method for solving the problems are found, and the urgent requirements of a plurality of cigarette distribution centers are met.
The existing sorting mode mainly depends on a fixed sorting mode, and different brands of special-shaped cigarettes are sorted according to the preset same method, and the sorting mode can cause that heavy cigarettes are insufficient in distribution strength, are retained at a distribution passage opening and do not enter a designated position, or the cigarettes are stuck and blocked due to the fact that the cigarette posture is inclined; the light cigarette carton distribution force is too large, the cigarette carton appearance of the cigarette carton is not correct due to the fact that the light cigarette carton distribution force exceeds the designated position, or the next sorting flow is influenced due to the fact that rear-end collision is caused by the large rebound force, and therefore the special-shaped cigarette distribution puts higher requirements on distribution equipment and technology.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a tobacco distribution control system and a control method for a tobacco distribution center for flexibly distributing special-shaped cigarettes by matching with a distribution mechanism.
The present invention is based on the current situation to solve the fundamental problem. Firstly, a modularized design idea is adopted, so that each channel for distributing the special-shaped cigarettes is of a same electrical structure, high repeatability and transportability are realized, secondly, a flexible distribution algorithm and a servo control method are organically combined, the distribution of the special-shaped cigarettes becomes stable and reliable, the distributed special-shaped cigarettes do not have damage traces any more, and the satisfaction degree of users is improved.
The technical scheme for solving the technical problems is as follows:
a flexible distribution control system for special-shaped cigarettes comprises a PLC (programmable logic controller), a field bus assembly module, a motor driving module, a data acquisition I/O (input/output) module, a sensing detection mechanism and a position tracking device; the PLC is electrically connected with the motor driving module and the data acquisition I/O module through the field bus assembly module;
the sensing detection mechanism is placed at a special-shaped cigarette dialing position, the position tracking device is placed at the tail of the servo motor, the position tracking device is placed at an electric signal access data acquisition IO module of the sensing detection mechanism, and the data acquisition IO module acquires the data and sends the data to the PLC through the field bus assembly module for related data processing; the system makes corresponding response processing according to dynamic flexible calculation, generates flexible shunt data and transmits the flexible shunt data to the motor driving module corresponding to each distribution channel.
The control method comprises the following steps:
before the control system sorts the cigarettes, the upper computer sends the brand of the special-shaped cigarettes distributed by each distribution channel to the PLC, the PLC searches the weight and size data related to the brand in a data table of the PLC according to the brand of the special-shaped cigarettes, then obtains the control parameters of each distribution channel of each sorting device according to a related algorithm, and distributes the parameters to the motor driving module of each distribution channel through the field bus assembly module, when the sorting is carried out, the motor driving module executes the distribution of the special-shaped cigarettes according to the motion track formed by the parameters, and the specific motion track is as follows:
when the PLC controller receives the brand, the distribution channel automatically controls the first shifting block to an initial distribution position A according to the length characteristic of the special-shaped cigarette, the position A is close to the tail part of the special-shaped cigarette, the purpose is to avoid the damage of the stress position of the special-shaped cigarette due to the fact that the first shifting block, the second shifting block and the special-shaped cigarette are in contact at low speed, and the position A can change in a certain area due to the length difference of the special-shaped cigarettes of different brands.
When the upper computer issues a task brand, the PLC receives and analyzes the reasonability of data, the PLC starts internal analysis after receiving the data, corresponding distribution information of each channel of each device is obtained through a flexible distribution algorithm according to the characteristics of materials, then the distribution information is distributed to a motor driving module of each distribution channel through a field bus assembly module, and the motor driving module distributes different special-shaped cigarettes according to issued data parameters.
The flexible distribution algorithm comprises the following steps:
suppose brand A special-shaped cigarette has a length of l, a weight of m and an initial dialing speed of V00m/s and a final velocity V1The acceleration time from the dialing to the outlet of the special-shaped cigarette is t0The deceleration time of the striking block from the position B to the area C is t1The time from the beginning of dialing the first cigarette to the beginning of dialing the second cigarette is the total time (namely the cigarette output period) of the algorithm is t, and the length from the outlet to the special-shaped cigarette is lBThe dialed displacement is S ═ l + lBR is an annular conveying chain linkRadius of sprocket
1. According to the relationship of displacement and time
Since the initial velocity is V00m/s, therefore
2. Because the acceleration a ═ V1-V0)/t 0②
Then according to V1K m ③ where k is an empirical coefficient obtained from big data analysis, k 2.5
Then a ═ m-V0)/t0
Substitution of ③ into ② yielded a ═ (k × m-V)0)/t0And due to V0＝0m/s
So that a is (k m)/t0④
From ①, ④
Changing S to l + lBSubstituting ⑤ to obtain acceleration time t0＝2*(l+lB)/(k*m)
Due to the time t of deceleration1＝t-t0t is smoke period, t is 0.5s
So the deceleration time t1＝[0.5*k*m-2*(l+lB)]/k*m
The acceleration time and the deceleration time are one of parameters required to be sent in the algorithm;
3. according to the relationship between linear speed and rotation speed, V-2 n pi r, where n is the rotation speed,
so that the maximum rotation speed when smoke is discharged is n1＝V1/(2*π*r) ⑥
Substitution of ① into ② gave V1＝2*S/t0+V0Due to V00m/S, the formula is simplified as V1-2S/t 0⑦
Substitution of ⑦ into ⑥ gives n1＝S*π*r/t0⑧
Changing S to l + lBInto ⑧ to obtain the rotation speed n1＝π*r*(l+lB)/t0
The rotation speed is also one of the parameters required to be sent in the algorithm
The acceleration time, the deceleration time and the rotating speed are three control parameters which need to be calculated in the algorithm, and the expected control effect can be achieved through the given three parameters.
The PLC accelerates the rotating speed from 0 to n according to the cigarette discharging time of the special-shaped cigarette (generally 0.5 second per cigarette)1The maximum final speed is reduced to zero speed from the maximum speed, and then the next cigarette is dialed, and the circulation is repeated.
The output rotating speed of the motor driving module (also called as a motor driving module) is obtained through a modbus protocol according to the corresponding dialing speed calculated by the PLC for the brands of different types of special-shaped cigarettes.
The working principle is as follows:
when sorting is carried out, the special-shaped cigarettes fall onto the annular conveying chain from the bin ④, after the materials are detected, the first shifting block starts to enter an acceleration stage in the control area A, the acceleration distance is calculated according to the characteristics of the special-shaped cigarettes, the first shifting block starts to decelerate after reaching the control point B, the deceleration distance is also calculated according to the characteristics of the special-shaped cigarettes, the first shifting block finally reaches the control area C, the first shifting block dialing process is finished, the second shifting block reaches the control area A and is just positioned at the tail of the next special-shaped cigarette, and then the second shifting block repeats the dialing process of the first shifting block.
In summary, a control method of a special-shaped flexible cigarette distribution control system includes:
the first step is as follows: sending a sorted task order to a PLC (programmable logic controller) by an upper computer, analyzing the brand and the quantity of the special-shaped cigarettes in the order by the PLC, detecting whether the brand and the quantity of the special-shaped cigarettes in the current equipment are consistent with information sent by the upper computer, if so, receiving the task by the PLC and starting to carry out detailed analysis and operation on the order, and if not, alarming and sending fault information to the upper computer;
the second step is that: after the PLC controller is subjected to detailed analysis and flexible distribution algorithm operation, the generated distribution data of each channel are stored in a PLC controller data area;
the third step: the data stored in the PLC data area are simultaneously transmitted to the motor driving module, and the motor driving module starts to adjust the initial position of the first shifting block and enters an accurate standby position of the tail part of the special-shaped cigarette in the control area A;
the fourth step: after the main line starts to run, the acceleration is started at a specified speed according to the issued information, when the special-shaped cigarettes reach the outlet, the outlet speed is already accelerated to the maximum, and the special-shaped cigarettes do free-falling motion according to the speed and fall into the middle position of the central belt;
the fifth step: the second shifting block starts the deceleration process from the control point B, after reaching the control area C, the speed is reduced to zero, and at the moment, the second shifting block reaches the dialing position of the next special-shaped cigarette;
and a sixth step: and when the distribution quantity in the channels is equal to the issued quantity, reporting to the PLC and waiting for the execution of the next task, wherein each channel is executed according to the flow.
The PLC searches the weight and size data related to the brand in a data table of the PLC according to the brand of the special-shaped cigarette, and then obtains the control parameters of each distribution channel of each sorting device according to the flexible distribution algorithm.
The flexible distribution algorithm is as follows:
acceleration time t0＝2*(l+lB)/(k*m)
Deceleration time t1＝[0.5*k*m-2*(l+lB)]/k*m
Motor speed n1＝π*r*(l+lB)/t0
In the formula: the length of the special-shaped cigarette is l, the weight is m, and the initial speed of dialing is V00m/s and a final velocity V1The acceleration time from the dialing to the outlet of the special-shaped cigarette is t0The deceleration time of the striking block from the position B to the area C is t1The first cigarette starts to be dialedThe time for starting to dial the second cigarette is the total time/cigarette output period of the algorithm is t, and the length from the outlet to the special-shaped cigarette is lBThe dialed displacement is S ═ l + lBR is the radius of the dialing chain wheel of the annular conveying chain, t is the smoke discharging period, and t is set to be 0.5s according to the working condition.
The special-shaped cigarette flexible distribution control system and the control method have the beneficial effects that:
1. the characteristic data of each abnormal-shaped cigarette is stored in a data table by adopting an advanced flexible distribution algorithm and by applying statistical analysis of big data, when an upper computer issues a sorting brand, a PLC (programmable logic controller) calculates distribution control parameters of the abnormal-shaped cigarettes with different material characteristics according to a corresponding algorithm, and the distribution control parameters are sent to a motor driving module (also called a motor driving module) through a modbus communication network;
2. the distribution control adopts a unitized design, each distribution device comprises a plurality of distribution channels, each distribution channel is a relatively independent distribution unit, and the control electricity of each distribution channel adopts the same unitized design and is provided with a field bus component module, a motor driving module (also called as a motor driving module), a servo motor and the like;
3. the special-shaped cigarettes are flexibly distributed, after the annular dialing device of the distribution equipment is operated through a servo-controlled operation curve algorithm, different speeds and accelerations are adopted for different special-shaped cigarettes, so that different special-shaped cigarettes have different motion tracks during distribution, and the special-shaped cigarettes with different material characteristics are flexibly distributed.
4. The invention provides a design scheme of a flexible distribution control system for special-shaped cigarettes, which is simple in system configuration, high in efficiency, stable, reliable and good in expansibility. The key point is that the PLC flexible algorithm is used in combination with a motor driving module (also called as a motor driving module), so that the special-shaped cigarettes with large characteristic difference can be accurately distributed.
5. The invention provides a flexible distribution control implementation method of a PLC (programmable logic controller), which can dynamically calculate distribution data of various special-shaped cigarettes with large weight and size characteristic differences after being analyzed according to big data.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic diagram of the layout and control points of the present invention;
FIG. 2 is a schematic diagram of a system architecture;
FIG. 3 is a schematic diagram of an electrical control system;
FIG. 4 is a schematic view of a V-T curve;
FIG. 5 is a system flow;
in the figure: the automatic cigarette making machine comprises a 1-annular conveying chain, a 2-first shifting block, a 3-special-shaped cigarette, a 4-bin, a 5-second shifting block, a 6-servo motor, a 7-position tracking device, an 8-sensing detection mechanism, a 9-control area A, a 10-control point B, a 11-control area C, a 12-deceleration section and a 13-acceleration section.
21-an electrical control system, 22-a PLC controller, 23-a field bus component module, 24-a motor driving module, 25-a data acquisition I/O module, 26-a sensing detection mechanism and 27-a position tracking device.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments in conjunction with the accompanying drawings.
The layout and control point embodiment of the control system in the flexible distribution control method for special-shaped cigarettes of the invention is shown in figure 1, which explains the layout situation of the control system and the function of each control point in detail, the control system comprises a PLC 22, a motor driving module 24 (also called as a motor driving module 24), a servo motor, an encoder carried by the servo motor, and a special-shaped cigarette detection sensor, only one PLC 22 is arranged in one project, the PLC 22 is mainly arranged in a main control cabinet and controls a plurality of distribution channels, the motor driving module 24 is a control device of each channel, the motor driving module 24 is electrically designed by taking groups as a unit, each 10 channels are taken as a group of equipment, one group of equipment is provided with a control box, the control box is provided with the motor driving module 24 which is a channel and a distributed input and output acquisition device, this control box is hung and is arranged in equipment positive rear, and servo motor and the encoder that servo motor took then is installed in the sprocket annex of annular conveying chain, and the opening of direct drive sprocket stops, and abnormal shape cigarette detection sensor is located the feed bin bottom for abnormal shape cigarette has the detection of not having.
The control point of the control system is described as follows, ② will automatically enter a controlled position A (the A position is an area which changes according to the length change of the special-shaped cigarette) close to the tail part of the special-shaped cigarette when a main line starts to run, the motor driving module 24 will drive ⑥ to run at a given speed value, meanwhile, the motor driving module 24 collects a speed feedback value of ⑦ in real time, the speed is corrected in real time to form closed-loop control, ⑥ 0 reaches the maximum outlet end speed when accelerating from the position A to the control point B, then the deceleration stage is started, when the position C is entered (the position C is an area which changes according to the length change of the special-shaped cigarette and is also an area which is symmetrical to the position A), the speed is reduced to zero, when ② stops at the position C, ⑥ 1 just enters the initial position ②, the special-shaped cigarette in ④ continuously enters the position A area, ⑥ drives ① to reciprocate, ② and ⑤ continuously and alternately dial the special-shaped cigarette, and the control running mode of the control system is the running mode.
Referring to figure 2, a composition diagram of an embodiment of a control system in the flexible distribution control method for special-shaped cigarettes of the invention,
the electrical control system 21 is composed of a PLC controller 22, a fieldbus component module 23, a motor drive module 24, a data acquisition I/O module 25, a sensing detection mechanism 26, and a position tracking device 27.
The PLC controller 2 is a core component of the whole electrical control system and is mainly responsible for data receiving/sending, data analysis, data operation and the like, and the core component is placed in the main control cabinet;
the field bus assembly module 23 is used for realizing data acquisition of I/O of each channel, and the field bus assembly module is also used for realizing data receiving/sending with the modbus communication module in a backboard communication mode to play a role of a bridge link of the PLC and the execution mechanism, and the component is placed in the control box;
the motor driving module 24 is one of the main executing components, and is an executing component which converts a control instruction and a given speed value sent by the fieldbus assembly module into a motor rotating speed and simultaneously acquires an encoder value fed back by the motor so as to achieve the purpose of modifying the speed in real time, and the component is placed in a control box;
the data acquisition I/O module 25 is a component responsible for acquiring sensor signals when the equipment runs, is just like a human sensory organ, and is placed in the control box for detecting whether special-shaped cigarettes exist or not;
the sensing detection mechanism 26 and the position tracking device 27 mainly collect data and send signals to a module responsible for signal collection, the sensing detection mechanism 26 is placed at the dialing position of the special-shaped cigarette, and the position tracking device 27 is placed at the tail of the servo motor.
The control system adopts a control mode of centralized management and decentralized control, and combines a plurality of technologies such as sensors, PLC, network and the like, the invention adopts a PLC as a main controller to control the distribution parameters of each channel, the core component is placed in the main control cabinet to carry out data receiving/sending, data analysis, data operation and the like, a field bus is laid between the PLC and a bus interface module in a control box, the PLC realizes data acquisition of I/O of each channel through the field bus and the bus interface module placed in the control box, the bus interface module realizes data receiving/sending with a modbus communication module in a back board communication mode (no wiring is needed among the modules, and rack pins are used), the modbus communication module carries out data interaction with 10 motor driving modules 24 in the same control box through a modbus arranged in the control box, the modbus buses of the 10 motor drive modules 24 are connected in series, each motor drive module 24 performs data interaction and power control with a servo motor installed in each channel, the motor drive modules 24 correct speed set values in real time according to encoder feedback values of the servo motors to ensure that the motors operate according to speed values sent by the PLC when controlling the servo motors to operate, and the motor drive modules 24 of each channel perform parameter setting according to motor nameplates before use.
The embodiment provides a method for controlling the distribution of special-shaped cigarettes, which explains the process of distributing a certain cigarette and comprises the following steps:
the first step is as follows: sending a sorted task order to a PLC (programmable logic controller) by an upper computer, analyzing the brand and the quantity of the special-shaped cigarettes in the order by the PLC, detecting whether the brand and the quantity of the special-shaped cigarettes in the current equipment are consistent with information sent by the upper computer, if so, receiving the task by the PLC and starting to carry out detailed analysis and operation on the order, and if not, alarming and sending fault information to the upper computer;
the second step is that: after the PLC is subjected to detailed analysis and operation, the generated distribution data of each channel are stored in a PLC data area;
the third step: the data stored in the PLC data area are simultaneously transmitted to the motor driving modules 24 of all channels, and the controller starts to adjust the initial position of the first shifting block and enters the accurate standby position of the tail part of the special-shaped cigarette in the control area A;
the fourth step: after the main line starts to run, the acceleration is started at a specified speed according to the issued information, when the special-shaped cigarettes reach the outlet, the outlet speed is already accelerated to the maximum, and the special-shaped cigarettes do free-falling motion according to the speed and fall into the middle position of the central belt;
the fifth step: the first shifting block starts the deceleration process from the control point B, the speed is reduced to zero after the first shifting block reaches the control area C, and at the moment, the second shifting block reaches the dialing position of the next special-shaped cigarette;
and when the distribution quantity in the channels is equal to the issued quantity, reporting to the PLC and waiting for the execution of the next task, wherein each channel is executed according to the flow.
The V-T curve is used for explaining different dialing algorithms of different special-shaped cigarettes, A and A1 are dialing starting positions of a first dialing block, A is the starting position of a special-shaped cigarette I, the position is calculated according to the length of the special-shaped cigarette, the length of the special-shaped cigarette is recorded into a PLC data storage area according to a brand of the special-shaped cigarette before dialing, after a brand is placed on an upper level, the PLC performs calculation and comparison, after analysis, corresponding data are sent into dialing data of a certain channel, the data comprise the length, the weight, the outlet end speed and the like of the special-shaped cigarette, when distribution is started, the channel executes corresponding driving data according to the data, for example, the acceleration of the special-shaped cigarette I in the same time T2 is longer than that of the special-shaped cigarette II, it can be seen from FIG. 5 that the time for the special-shaped cigarette I to reach the position B is longer than that of the special-shaped cigarette II, and the outlet speed is faster than that of the special-shaped cigarette II, the invention aims at different special-shaped cigarettes to dial by using flexible parameters, so that the different special-shaped cigarettes can still be placed near the central position of the main sorting line, and the cigarette posture is kept unchanged.
Claims (4)
1. A flexible distribution control system of heterotypic cigarette which characterized in that:
the system comprises a PLC, a field bus assembly module, a motor driving module, a data acquisition I/O module, a sensing detection mechanism and a position tracking device; the PLC controller 2 is electrically connected with the motor driving module and the data acquisition I/O module through the field bus assembly module;
the sensing detection mechanism is placed at a special-shaped cigarette dialing position, the position tracking device is placed at the tail of the servo motor, the position tracking device is placed at an electric signal access data acquisition IO module of the sensing detection mechanism, and the data acquisition IO module acquires the data and sends the data to the PLC through the field bus assembly module for related data processing; the system makes corresponding response processing according to dynamic flexible calculation, generates flexible shunt data and transmits the flexible shunt data to the motor driving module corresponding to each distribution channel.
2. A control method of the shaped smoke flexible distribution control system according to claim 1, characterized by comprising the following steps:
the first step is as follows: sending a sorted task order to a PLC (programmable logic controller) by an upper computer, analyzing the brand and the quantity of the special-shaped cigarettes in the order by the PLC, detecting whether the brand and the quantity of the special-shaped cigarettes in the current equipment are consistent with information sent by the upper computer, if so, receiving the task by the PLC and starting to carry out detailed analysis and operation on the order, and if not, alarming and sending fault information to the upper computer;
the second step is that: after the PLC controller is subjected to detailed analysis and flexible distribution algorithm operation, the generated distribution data of each channel are stored in a PLC controller data area;
the third step: the data stored in the PLC data area are simultaneously transmitted to the motor driving module, and the motor driving module starts to adjust the initial position of the first shifting block and enters an accurate standby position of the tail part of the special-shaped cigarette in the control area A;
the fourth step: after the main line starts to run, the acceleration is started at a specified speed according to the issued information, when the special-shaped cigarettes reach the outlet, the outlet speed is already accelerated to the maximum, and the special-shaped cigarettes do free-falling motion according to the speed and fall into the middle position of the central belt;
the fifth step: the first shifting block starts the deceleration process from the control point B, the speed is reduced to zero after the first shifting block reaches the control area C, and at the moment, the second shifting block reaches the dialing position of the next special-shaped cigarette;
and a sixth step: and when the distribution quantity in the channels is equal to the issued quantity, reporting to the PLC and waiting for the execution of the next task, wherein each channel is executed according to the flow.
3. The method of controlling a profiled cigarette flexible dispensing control system of claim 2, wherein the second step further comprises:
the PLC searches the weight and size data related to the brand in a data table of the PLC according to the brand of the special-shaped cigarette, and then obtains the control parameters of each distribution channel of each sorting device according to the flexible distribution algorithm.
4. The method for controlling the flexible distribution control system of the special-shaped cigarettes according to claim 3, wherein the flexible distribution algorithm in the second step is as follows:
acceleration time t0＝2*(l+lB)/(k*m)
Deceleration time t1＝[0.5*k*m-2*(l+lB)]/k*m
Motor speed n1＝π*r*(l+lB)/t0
In the formula: the length of the special-shaped cigarette is l, the weight is m, and the initial speed of dialing is V00m/s and a final velocity V1The acceleration time from the dialing to the outlet of the special-shaped cigarette is t0The deceleration time of the striking block from the position B to the area C is t1The time from the beginning of dialing the first cigarette to the beginning of dialing the second cigarette is the total time/cigarette output period of the algorithm is t, and the length from the outlet to the special-shaped cigarette is lBThe dialed displacement is S ═ l + lBR is the radius of the dialing chain wheel of the annular conveying chain, t is the smoke discharging period, and t is set to be 0.5s according to the working condition.
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