CN110801052A - Control method for adjusting outlet flow of feeding machine based on different inlet flows of feeding machine - Google Patents
Control method for adjusting outlet flow of feeding machine based on different inlet flows of feeding machine Download PDFInfo
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/39—Tobacco feeding devices
- A24C5/399—Component parts or details, e.g. feed roller, feed belt
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Abstract
A control method for regulating the outlet flow of a feeder based on different inlet flows of the feeder is characterized in that the feeder enters an automatic operation mode; collecting the running state of the feeder, and controlling the spreading height to be H when the feeder enters a 'broken filament' state1Feeding is started by the feeder; when entering a 'no broken filament' state, controlling the spreading height to be H2Feeding is started by the feeder; h2Greater than H1(ii) a Judging whether the feeding machine is in a half-full state or not, and if so, entering a pre-filling stage; if the feeder is not in the feeding state, continuing feeding; when entering the state of 'having broken filaments', the frequencies of the bottom belt and the lifting belt motor are controlled to be F respectively1And f1(ii) a When entering the 'no residual filament' state, the frequencies of the bottom belt and the lifting belt motor are controlled to be F respectively2And f2；F2Less than F1，f2Is less than f1(ii) a When the quantitative tube is filled, the pre-filling stage of the feeder is ended; otherwise, controlling the feeder to continuously pre-fill. The method can be based on the inlet flow of the feederThe difference is that the outlet flow is automatically adjusted.
Description
Technical Field
The invention belongs to the field of control of a tobacco shred production process, and particularly relates to a control method for adjusting outlet flow of a feeder based on different inlet flows of the feeder.
Background
In the production process of cut tobacco, in order to ensure the stable flow rate in front of a flavoring machine, a certain amount of cut tobacco needs to be stored in a feeding machine in front of the flavoring machine in advance, a certain amount of residual cut tobacco is sometimes doped in response to different production conditions, when the residual cut tobacco is doped, the flow rate of the cut tobacco at the inlet of the feeding machine is increased, and the flow rate at the outlet of the feeding machine is kept unchanged according to a fixed process standard. Under the condition that the inlet flow is increased and the outlet flow is not changed, the total capacity of the feeder is limited, so that more and more tobacco shreds in the feeder are bound to be caused, finally the feeder is filled, the inlet stops feeding, and therefore the upstream equipment is stopped, and the stability of the upstream flow is influenced. If the storage capacity of the feeder is artificially reduced at the beginning, under the condition that the feeder is not fully filled when adding the residual silks, once the inlet flow is reduced when producing the product without the residual silks, the feeder is slowly pulled to be empty, thereby causing the downstream flow to be unstable. The quantity of the tobacco shreds stored in the feeder before feeding, the flow of the tobacco shreds at the outlet and the capacity of the feeder are fixed, while the flow at the inlet is changed, so that the feeder is difficult to ensure not to be filled and pulled empty in the whole batch of material production process on the basis of the original equipment.
At present, many researches are made on the flow control of a feeder, for example, chinese patent 2017, 1 month 11 discloses a feeder material detection system based on a grating sensor, which is a patent with publication number CN205873188U, and the system replaces an original single-point detection photoelectric switch with the grating sensor, and the grating sensor has the advantages of multi-point detection, stable performance, high sensitivity and the like, so that the accuracy and stability of material detection in the feeder are improved. However, the technical scheme does not solve the problem that when the inlet flow rates of the feeders are different, the outlet flow rates of the feeders are automatically adjusted, so that the phenomenon that the feeders are full or empty is caused, and the situation that the feeders are kept in a material storage and not filled fully during the whole batch of material production cannot be guaranteed.
Disclosure of Invention
The invention aims to provide a control method for adjusting outlet flow of a feeder based on different inlet flows of the feeder, which can automatically adjust the outlet flow of the feeder according to different situations of blending of residual silks in products, namely according to different inlet flows of the feeder, thereby avoiding the phenomenon that the feeder is full or empty, and ensuring that the feeder can keep a material storage and unfilled state during the production of the whole batch of materials.
In order to achieve the above object, a control method for adjusting outlet flow of a feeder based on different inlet flows of the feeder comprises the following steps:
a: manually clicking a control button 'line start' on the feeding machine, and enabling the feeding machine to enter an automatic operation mode;
b: the PLC judges whether the batch of products need to be blended with the residual silks through a program, and acquires the running state of the feeder: when the batch of products needs blending with the residual silks, the feeder enters a 'residual silks' state; when the batch of products does not need to be blended with residual silks, the feeder enters a 'no residual silks' state;
c: when the feeder enters a 'broken filament' state, the PLC controller controls the spreading height to be H1Then, the feeding machine starts feeding, detects the spreading height of the feeding machine through an ultrasonic sensor and inputs the spreading height to the PLC;
when the feeder enters a 'no-residual-filament' state, the PLC controller controls the spreading height to be H2Then, the feeding machine starts feeding, detects the spreading height of the feeding machine through an ultrasonic sensor and inputs the spreading height to the PLC; h2Greater than H1；
D: the feeder judges whether the feeding of the feeder is in a half-full state by using a half-full photoelectric tube, if so, the bottom belt and the lifting belt start to operate, and the feeder enters a pre-filling stage; if not, the feeder continues feeding until the half-full photoelectric tube detects that the feeder is in a half-full state;
e: when the feeder enters a 'broken filament' state, the PLC controller controls the frequency of the bottom belt motor to be F1Controlling the frequency of the hoist belt motor to be f1The bottom belt and the lifting belt operate to convey the tobacco shreds stored in the feeder into the lifting belt and the quantitative pipe in sequence;
when the feeder enters a 'no-residual-filament' state, the PLC controller controls the frequency of the bottom belt motor to be F2Controlling the frequency of the hoist belt motor to be f2(ii) a The bottom belt and the lifting belt operate to convey the tobacco shreds stored in the feeder into the lifting belt and the quantitative pipe in sequence; f2Less than F1，f2Is less than f1；
The quantitative tube detects whether the quantitative tube is filled by using the gratings on two sides, and if so, the pre-filling stage of the feeder is finished; if not, the feeder is controlled to be continuously prefilled until the gratings on the two sides detect that the quantitative tube is filled fully, the prefilling stage of the feeder is finished, and the device enters a formal production mode.
Preferably, the feeder is of the type SWZ07 and the elevator is of the type SDT15, and when the feeder enters the "with broken filaments" state, H1Is 60cm, F1Is 35HZ, f1Is 30 HZ; when the feeder enters a 'no residual filament' state, H2Is 80cm, F2Is 20HZ, f2Is 15 HZ.
Preferably, the feeder is of the type SWZ10 and the elevator is of the type SDT20, and when the feeder enters the "with broken filaments" state, H1Is 65cm, F1Is 38HZ, f1Is 30 HZ; when the feeder enters a 'no residual filament' state, H2Is 90cm, F2Is 23HZ, f2Is 15 HZ.
Preferably, the feeder is of the type SWZ15 and the elevator is of the type SDT21, and when the feeder enters the "with broken filaments" state, H1Is 60cm, F1Is 45HZ, f1Is 40 HZ; when the feeder enters a 'no residual filament' state, H2Is 80cm, F2Is 30HZ, f2Is 20 HZ.
Preferably, the feeder is of the type SWZ08 and the elevator is of the type SDT16, and when the feeder enters the "with broken filaments" state, H1Is 70cm, F1Is 40HZ, f1Is 35 HZ; when the feeder enters a 'no residual filament' state, H2The length of the groove is 90cm,F2is 25HZ, f2Is 20 HZ.
Compared with the prior art, the invention provides the method for controlling the flow of the outlet of the feeding machine based on the PLC program based on the existing feeding machine and the detection original, thereby avoiding the capital investment caused by increasing the detection original; according to different situations of whether the product is mixed with the residual cut tobacco or not, the invention detects the change of the spreading height through the ultrasonic sensor, and adjusts the operation frequency of the motors of the lifting belt and the bottom belt in real time through the PID operation of the PLC and the frequency converter, thereby changing the operation speed of the lifting belt and the bottom belt, effectively utilizing the difference of the operation speed of the lifting belt and the bottom belt, shortening or prolonging the time required by the pre-filling stage, indirectly changing the storage amount of the cut tobacco in the feeder after the pre-filling stage is finished, ensuring the stability of the outlet flow of the feeder under the condition of different inlet flow, avoiding the phenomenon of full or empty feeding of the feeder, ensuring that the feeder keeps the state of material storage and not full filling in the production period of the whole batch of materials, and ensuring the normal operation of the equipment. The automatic feeding device has the characteristics of simple structure, accurate control and high automation degree, and is suitable for being applied to all feeding machines for the silk making thread.
Drawings
FIG. 1 is a flow chart of flow control according to the present invention;
FIG. 2 is a schematic diagram of an apparatus for carrying the present invention;
in fig. 2: 1. the device comprises a feeding machine, 2, a bottom belt, 3, a half-full photoelectric tube, 4, a lifting belt, 5, a quantitative tube, 6 and an ultrasonic sensor.
Detailed Description
The present invention will be described in further detail with reference to the following examples and the accompanying drawings.
The utility model provides a control method based on its export flow of different entry flow control of feeding machine, the device that bears this method includes feeding machine 1, the bottom of feeding machine 1 is equipped with end strip 2, upper portion is equipped with half full photoelectric tube 3 in the feeding machine 1, 4 entry linkage in end strip 2 export and the lifting belt on the lifting machine, 4 exports of lifting belt and quantitative pipe 5 intercommunication, the lateral wall of quantitative pipe 5 is prepared for transparent material and forms, the grating is installed to quantitative pipe 5 bilateral symmetry, feeding machine 1 is equipped with ultrasonic sensor 6 with 4 linking department tops of lifting belt, all be equipped with the converter on end strip 2 and the circuit of lifting belt 4, the converter, the grating, half full photoelectric tube 3, ultrasonic sensor 6 is connected with the PLC controller respectively, the PLC controller is connected with the control button on the feeding machine 1.
The products used in the following examples are all of brand a, and the inlet flow rates for brand a products that require and do not require blending of residual filament are as follows:
when the product of the brand A needs to be blended with the residual silks, the inlet flow of the feeder 1 is 6600Kg/h, and the outlet flow of the feeder 1 is fixed and is set at 6500 Kg/h.
When the product of the brand A does not need blending the residual silks, the inlet flow of the feeder 1 is 6400Kg/h, and the outlet flow of the feeder 1 is fixed and set at 6500 Kg/h.
Example 1
The feeder 1 used in this example was of the type SWZ07 and the elevator type SDT 15.
A: manually clicking a control button 'line start' on the feeder 1, and enabling the feeder 1 to enter an automatic operation mode;
b: the PLC judges that the batch of products need to be blended with the residual silks through a program, and acquires the running state of the feeder 1: when the batch of products needs to be blended with residual silks, the feeder 1 enters a 'residual silks' state; when the batch of products does not need to be blended with residual silks, the feeder 1 enters a 'no residual silks' state;
c: when the feeder 1 enters a 'broken filament' state, the PLC controller controls the spreading height H1The feeding height of the feeding machine 1 is detected by the feeding machine 1 through the ultrasonic sensor 6, and the spreading height is input to the PLC controller;
when the feeder 1 enters a 'no residual thread' state, the PLC controller controls the spreading height H2The feeding height of the feeding machine 1 is detected by the feeding machine 1 through the ultrasonic sensor 6, and the spreading height is input to the PLC controller;
d: the feeder 1 judges whether the feeding of the feeder 1 is in a half-full state by using the half-full photoelectric tube 3, if so, the bottom belt 2 and the lifting belt 4 start to operate, and the feeder 1 enters a pre-filling stage; if not, the feeder 1 continues feeding until the half-full photoelectric tube 3 detects that the feeder 1 is in a half-full state;
e: when the feeder 1 enters a 'broken filament' state, the PLC controller controls the frequency f of the lifting belt 4130HZ, frequency F of the bottom band 21Is 35 HZ; the bottom belt 2 and the lifting belt 4 operate to convey most of the tobacco shreds stored in the feeder 1 to the lifting belt 4 and the quantitative pipe 5 in sequence;
when the feeder 1 enters a 'no residual filament' state, the PLC controller controls the frequency f of the lifting belt 42At 15HZ, frequency F of the bottom band 22Is 20 HZ; the bottom belt 2 and the lifting belt 4 operate to convey most of the tobacco shreds stored in the feeder 1 to the lifting belt 4 and the quantitative pipe 5 in sequence;
the quantitative tube 5 detects whether the quantitative tube 5 is filled by utilizing the gratings on the two sides, and if so, the pre-filling stage of the feeder 1 is ended; if not, the feeder 1 is controlled to be prefilled continuously until the gratings on the two sides detect that the quantitative tube 5 is filled completely, the prefilling stage of the feeder 1 is finished, and the equipment enters a formal production mode.
When the feeder 1 enters a 'broken tobacco' state, the operation frequency of the lifting belt 4 and the bottom belt 2 in the pre-filling stage is higher, so that the pre-filling stage is less in use, the storage quantity of the cut tobacco in the feeder 1 is reduced, the difference value between the inlet flow and the outlet flow is 100Kg/h, the production time of a batch of products is 2h, the feeder 1 is basically emptied after the pre-filling stage is finished, and the remaining space can store more than 200Kg of cut tobacco, so that the situation that the feeder 1 is fully filled in the production process of the products with broken tobacco does not occur.
When the feeder 1 enters a 'no-residue-shred' state, the operation frequency of the lifting belt 4 and the bottom belt 2 in the feeding stage is lower, so the pre-filling stage is longer in use, the feeder 1 has more time to store the cut tobacco, the difference value of the inlet flow and the outlet flow is-100 Kg/h, the production time of a batch of products is 2h, the storage amount of the cut tobacco in the feeder 1 is more after the pre-filling stage is finished, the stored cut tobacco is more than 200Kg, and the situation that the feeder is pulled empty in the production process of the product without residue shreds cannot occur.
Example 2
The feeder 1 used in this example was of the type SWZ10 and the elevator type SDT 20.
A: manually clicking a control button 'line start' on the feeder 1, and enabling the feeder 1 to enter an automatic operation mode;
b: the PLC judges that the batch of products need to be blended with the residual silks through a program, and acquires the running state of the feeder 1: when the batch of products needs to be blended with residual silks, the feeder 1 enters a 'residual silks' state; when the batch of products does not need to be blended with residual silks, the feeder 1 enters a 'no residual silks' state;
c: when the feeder 1 enters a 'broken filament' state, the PLC controller controls the spreading height H1The feeding height of the feeding machine 1 is 65cm, the feeding machine 1 starts feeding, the paving height of the feeding machine 1 is detected by the ultrasonic sensor 6, and the paving height is input into the PLC;
when the feeder 1 enters a 'no residual thread' state, the PLC controller controls the spreading height H2The feeding height of the feeding machine 1 is detected by the feeding machine 1 through the ultrasonic sensor 6, and the spreading height is input to the PLC controller;
d: the feeder 1 judges whether the feeding of the feeder 1 is in a half-full state by using the half-full photoelectric tube 3, if so, the bottom belt 2 and the lifting belt 4 start to operate, and the feeder 1 enters a pre-filling stage; if not, the feeder 1 continues feeding until the half-full photoelectric tube 3 detects that the feeder 1 is in a half-full state;
e: when the feeder 1 enters a 'broken filament' state, the PLC controller controls the frequency f of the lifting belt 41At 23Hz, frequency F of the bottom band 21Is 38 HZ; the bottom belt 2 and the lifting belt 4 operate to convey most of the tobacco shreds stored in the feeder 1 to the lifting belt 4 and the quantitative pipe 5 in sequence;
when the feeder 1 enters a 'no residual filament' state, the PLC controller controls the frequency f of the lifting belt 42At 15HZ, frequency F of the bottom band 22Is 23 HZ; the bottom belt 2 and the lifting belt 4 operate to convey most of the tobacco shreds stored in the feeder 1 to the lifting belt 4 and the quantitative pipe 5 in sequence;
the quantitative tube 5 detects whether the quantitative tube 5 is filled by utilizing the gratings on the two sides, and if so, the pre-filling stage of the feeder 1 is ended; if not, the feeder 1 is controlled to be prefilled continuously until the gratings on the two sides detect that the quantitative tube 5 is filled completely, the prefilling stage of the feeder 1 is finished, and the equipment enters a formal production mode.
When the feeder 1 enters a 'broken tobacco' state, the operation frequency of the lifting belt 4 and the bottom belt 2 in the pre-filling stage is higher, so that the pre-filling stage is less in use, the storage quantity of the cut tobacco in the feeder 1 is reduced, the difference value between the inlet flow and the outlet flow is 100Kg/h, the production time of a batch of products is 2h, the feeder 1 is basically emptied after the pre-filling stage is finished, and the remaining space can store more than 200Kg of cut tobacco, so that the situation that the feeder 1 is fully filled in the production process of the products with broken tobacco does not occur.
When the feeder 1 enters a 'no-residue-shred' state, the operation frequency of the lifting belt 4 and the bottom belt 2 in the feeding stage is lower, so the pre-filling stage is longer in use, the feeder 1 has more time to store the cut tobacco, the difference value of the inlet flow and the outlet flow is-100 Kg/h, the production time of a batch of products is 2h, the storage amount of the cut tobacco in the feeder 1 is more after the pre-filling stage is finished, the stored cut tobacco is more than 200Kg, and the situation that the feeder is pulled empty in the production process of the product without residue shreds cannot occur.
Example 3
The feeder 1 used in this example was of the type SWZ15 and the elevator type SDT 21.
A: manually clicking a control button 'line start' on the feeder 1, and enabling the feeder 1 to enter an automatic operation mode;
b: the PLC judges that the batch of products need to be blended with the residual silks through a program, and acquires the running state of the feeder 1: when the batch of products needs to be blended with residual silks, the feeder 1 enters a 'residual silks' state; when the batch of products does not need to be blended with residual silks, the feeder 1 enters a 'no residual silks' state;
c: when the feeder 1 enters a 'broken filament' state, the PLC controller controls the spreading height H1The feeding height is 60cm, the feeding machine 1 starts feeding, the feeding machine 1 detects the paving height of the feeding machine 1 through the ultrasonic sensor 6, and the paving height is input intoA PLC controller;
when the feeder 1 enters a 'no residual thread' state, the PLC controller controls the spreading height H2The feeding height of the feeding machine 1 is detected by the feeding machine 1 through the ultrasonic sensor 6, and the spreading height is input to the PLC controller;
d: the feeder 1 judges whether the feeding of the feeder 1 is in a half-full state by using the half-full photoelectric tube 3, if so, the bottom belt 2 and the lifting belt 4 start to operate, and the feeder 1 enters a pre-filling stage; if not, the feeder 1 continues feeding until the half-full photoelectric tube 3 detects that the feeder 1 is in a half-full state;
e: when the feeder 1 enters a 'broken filament' state, the PLC controller controls the frequency f of the lifting belt 41At 40Hz, frequency F of the bottom band 21Is 45 HZ; the bottom belt 2 and the lifting belt 4 operate to convey most of the tobacco shreds stored in the feeder 1 to the lifting belt 4 and the quantitative pipe 5 in sequence;
when the feeder 1 enters a 'no residual filament' state, the PLC controller controls the frequency f of the lifting belt 4220HZ, frequency F of the bottom band 22Is 30 HZ; the bottom belt 2 and the lifting belt 4 operate to convey most of the tobacco shreds stored in the feeder 1 to the lifting belt 4 and the quantitative pipe 5 in sequence;
the quantitative tube 5 detects whether the quantitative tube 5 is filled by utilizing the gratings on the two sides, and if so, the pre-filling stage of the feeder 1 is ended; if not, the feeder 1 is controlled to be prefilled continuously until the gratings on the two sides detect that the quantitative tube 5 is filled completely, the prefilling stage of the feeder 1 is finished, and the equipment enters a formal production mode.
When the feeder 1 enters a 'broken tobacco' state, the operation frequency of the lifting belt 4 and the bottom belt 2 in the pre-filling stage is higher, so that the pre-filling stage is less in use, the storage quantity of the cut tobacco in the feeder 1 is reduced, the difference value between the inlet flow and the outlet flow is 100Kg/h, the production time of a batch of products is 2h, the feeder 1 is basically emptied after the pre-filling stage is finished, and the remaining space can store more than 200Kg of cut tobacco, so that the situation that the feeder 1 is fully filled in the production process of the products with broken tobacco does not occur.
When the feeder 1 enters a 'no-residue-shred' state, the operation frequency of the lifting belt 4 and the bottom belt 2 in the feeding stage is lower, so the pre-filling stage is longer in use, the feeder 1 has more time to store the cut tobacco, the difference value of the inlet flow and the outlet flow is-100 Kg/h, the production time of a batch of products is 2h, the storage amount of the cut tobacco in the feeder 1 is more after the pre-filling stage is finished, the stored cut tobacco is more than 200Kg, and the situation that the feeder is pulled empty in the production process of the product without residue shreds cannot occur.
Example 4
The feeder 1 used in this example was of the type SWZ08 and the elevator type SDT 16.
A: manually clicking a control button 'line start' on the feeder 1, and enabling the feeder 1 to enter an automatic operation mode;
b: the PLC judges that the batch of products need to be blended with the residual silks through a program, and acquires the running state of the feeder 1: when the batch of products needs to be blended with residual silks, the feeder 1 enters a 'residual silks' state; when the batch of products does not need to be blended with residual silks, the feeder 1 enters a 'no residual silks' state;
c: when the feeder 1 enters a 'broken filament' state, the PLC controller controls the spreading height H1The feeding height of the feeding machine 1 is detected by the feeding machine 1 through the ultrasonic sensor 6, and the spreading height is input to the PLC controller;
when the feeder 1 enters a 'no residual thread' state, the PLC controller controls the spreading height H2The feeding height of the feeding machine 1 is detected by the feeding machine 1 through the ultrasonic sensor 6, and the spreading height is input to the PLC controller;
d: the feeder 1 judges whether the feeding of the feeder 1 is in a half-full state by using the half-full photoelectric tube 3, if so, the bottom belt 2 and the lifting belt 4 start to operate, and the feeder 1 enters a pre-filling stage; if not, the feeder 1 continues feeding until the half-full photoelectric tube 3 detects that the feeder 1 is in a half-full state;
e: when the feeder 1 enters a 'broken filament' state, the PLC controller controls the frequency f of the lifting belt 41At 35HZ, frequency F of the bottom band 21Is 40 HZ; the bottom belt 2 and the lifting belt 4 operate to feed the material machine1, conveying most of the tobacco shreds stored in the container to a lifting belt 4 and a quantitative pipe 5 in sequence;
when the feeder 1 enters a 'no residual filament' state, the PLC controller controls the frequency f of the lifting belt 4220HZ, frequency F of the bottom band 22Is 25 HZ; the bottom belt 2 and the lifting belt 4 operate to convey most of the tobacco shreds stored in the feeder 1 to the lifting belt 4 and the quantitative pipe 5 in sequence;
the quantitative tube 5 detects whether the quantitative tube 5 is filled by utilizing the gratings on the two sides, and if so, the pre-filling stage of the feeder 1 is ended; if not, the feeder 1 is controlled to be prefilled continuously until the gratings on the two sides detect that the quantitative tube 5 is filled completely, the prefilling stage of the feeder 1 is finished, and the equipment enters a formal production mode.
When the feeder 1 enters a 'broken tobacco' state, the operation frequency of the lifting belt 4 and the bottom belt 2 in the pre-filling stage is higher, so that the pre-filling stage is less in use, the storage quantity of the cut tobacco in the feeder 1 is reduced, the difference value between the inlet flow and the outlet flow is 100Kg/h, the production time of a batch of products is 2h, the feeder 1 is basically emptied after the pre-filling stage is finished, and the remaining space can store more than 200Kg of cut tobacco, so that the situation that the feeder 1 is fully filled in the production process of the products with broken tobacco does not occur.
When the feeder 1 enters a 'no-residue-shred' state, the operation frequency of the lifting belt 4 and the bottom belt 2 in the feeding stage is lower, so the pre-filling stage is longer in use, the feeder 1 has more time to store the cut tobacco, the difference value of the inlet flow and the outlet flow is-100 Kg/h, the production time of a batch of products is 2h, the storage amount of the cut tobacco in the feeder 1 is more after the pre-filling stage is finished, the stored cut tobacco is more than 200Kg, and the situation that the feeder is pulled empty in the production process of the product without residue shreds cannot occur.
The logic control of the above embodiment, such as the state judgment of the presence or absence of the residual wire, the equipment data assignment, the state switching, and the like, is realized by a Programmable Logic Controller (PLC).
The embodiment shows that the shutdown of upstream equipment caused by the fact that the feeder 1 is filled is obviously reduced, the shutdown of the upstream equipment is reduced from the initial batch to 100 batches and is not reduced once, meanwhile, the downstream flow rate caused by the fact that the feeder 1 is pulled to be empty is obviously reduced, in the parameter counted by the quality control system, the value of the process control capacity index Cpk is increased to be more than 1.33, the material flow rate is well stabilized, the stability of integral perfuming is guaranteed, and the internal quality of a product is obviously improved.
Claims (5)
1. A control method for adjusting outlet flow of a feeder based on different inlet flows of the feeder is characterized by comprising the following steps:
a: manually clicking a control button 'line start' on the feeder (1), and enabling the feeder (1) to enter an automatic operation mode;
b: the PLC judges whether the batch of products need to be blended with the residual silks through a program, and acquires the running state of the feeder (1): when the batch of products needs to be blended with residual silks, the feeder (1) enters a 'residual silk' state; when the batch of products do not need to be blended with residual silks, the feeder (1) enters a 'no residual silk' state;
c: when the feeder (1) enters a 'broken filament' state, the PLC controller controls the spreading height to be H1Then, the feeding machine (1) starts feeding, the paving height of the feeding machine (1) is detected by the feeding machine (1) through the ultrasonic sensor (6), and the paving height is input into the PLC;
when the feeder (1) enters a 'no-residual-filament' state, the PLC controller controls the spreading height to be H2Then, the feeding machine (1) starts feeding, the paving height of the feeding machine (1) is detected by the feeding machine (1) through the ultrasonic sensor (6), and the paving height is input into the PLC; h2Greater than H1；
D: the feeder (1) judges whether the feeding of the feeder (1) is in a half-full state by using the half-full photoelectric tube (3), if so, the bottom belt (2) and the lifting belt (4) start to operate, and the feeder (1) enters a pre-filling stage; if not, the feeder (1) continues feeding until the half-full photoelectric tube (3) detects that the feeder (1) is in a half-full state;
e: when the feeder (1) enters a 'residual filament' state, the PLC controller controls the frequency of the motor of the bottom belt (2) to be F1Controlling the frequency of the motor of the lifting belt (4) to be f1The bottom belt (2) and the lifting belt (4) operate to feed the material machine(1) The tobacco shreds stored in the tobacco shred storage device are sequentially conveyed into a lifting belt (4) and a quantitative pipe (5);
when the feeder (1) enters a 'no-residual-filament' state, the PLC controller controls the frequency of the motor of the bottom belt (2) to be F2Controlling the frequency of the motor of the lifting belt (4) to be f2(ii) a The bottom belt (2) and the lifting belt (4) operate to convey the cut tobacco stored in the feeder (1) to the lifting belt (4) and the quantitative pipe (5) in sequence; f2Less than F1，f2Is less than f1；
The quantitative tube (5) detects whether the quantitative tube (5) is filled by utilizing the gratings at two sides, and if so, the pre-filling stage of the feeder (1) is ended; if not, the feeder (1) is controlled to be prefilled continuously until the gratings on the two sides detect that the quantitative tube (5) is filled fully, the prefilling stage of the feeder (1) is finished, and the device enters a formal production mode.
2. The method as claimed in claim 1, wherein the method further comprises the steps of: the model of the feeder (1) is SWZ07, the model of the hoister is SDT15, and when the feeder (1) enters a 'broken filament' state, H is carried out1Is 60cm, F1Is 35HZ, f1Is 30 HZ; when the feeder (1) enters a 'no residual filament' state, H2Is 80cm, F2Is 20HZ, f2Is 15 HZ.
3. The method as claimed in claim 1, wherein the method further comprises the steps of: the model of the feeder (1) is SWZ10, the model of the hoister is SDT20, and when the feeder (1) enters a 'broken filament' state, H is carried out1Is 65cm, F1Is 38HZ, f1Is 30 HZ; when the feeder (1) enters a 'no residual filament' state, H2Is 90cm, F2Is 23HZ, f2Is 15 HZ.
4. The method as claimed in claim 1, wherein the method further comprises the steps of: the type of the feeder (1) is SWZ15, and the type of the hoister is SDT21When the feeder (1) enters a 'broken filament' state, H1Is 60cm, F1Is 45HZ, f1Is 40 HZ; when the feeder (1) enters a 'no residual filament' state, H2Is 80cm, F2Is 30HZ, f2Is 20 HZ.
5. The method as claimed in claim 1, wherein the method further comprises the steps of: the model of the feeder (1) is SWZ08, the model of the hoister is SDT16, and when the feeder (1) enters a 'broken filament' state, H is carried out1Is 70cm, F1Is 40HZ, f1Is 35 HZ; when the feeder (1) enters a 'no residual filament' state, H2Is 90cm, F2Is 25HZ, f2Is 20 HZ.
Priority Applications (1)
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