Precise bobbin paper remaining amount control method in cigarette production and storage medium

Abstract

The invention discloses a method for accurately controlling the remaining amount of bobbin paper in cigarette production and a storage medium, a color code sensor is mounted on working bobbin paper, a specific color mark is arranged at the tail end L0m of the length of each reel of bobbin paper, when the color code sensor detects the corresponding mark, the bobbin paper continues to run for a period of time, then equipment starts to decelerate, and the remaining amount of the bobbin paper is accurately controlled. And when the corresponding mark is detected, the set splicing speed is kept, the standby bobbin paper acceleration motor starts to accelerate while the corresponding mark is detected, when the splicing speed is directly reached, the working bobbin paper and the standby bobbin paper complete splicing work, and cigarettes at the marked position and cigarettes at the spliced position are all removed at the removing wheel. The method is simple, direct and high in cost efficiency, and accurate detection and control of the bobbin paper position can be achieved.

Description

Technical Field

[0001] The present invention relates to the field of cigarette manufacturing, and more specifically, to a method for accurately controlling the remaining amount of coil paper in cigarette production and a storage medium. Background Art

[0002] In cigarette production, coil paper is a commonly used material, and its use efficiency and precision directly affect the cost of the product. In the process of coil paper splicing, the difference in the size of the inner circle of the coil paper and the accuracy of the detection method will lead to inconsistent coil paper remaining. The existing method for detecting the remaining coil paper diameter is pulse reference. There are 8 pulses in one circle of the reel shaft. The ERP pulse is compared with the reel shaft pulse to determine whether the coil paper is about to be spliced. This method has low detection accuracy. In actual production, the remaining coil paper is kept at about 18 meters, which causes great waste and increases costs.

[0003] Therefore, how to provide a method for accurately controlling the remaining amount of paper coils has become a technical problem that urgently needs to be solved in this field. Summary of the invention

[0004] The object of the present invention is to provide a method for accurately controlling the remaining amount of coil paper in cigarette production.

[0005] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0006] A method for accurately controlling the amount of paper reels in cigarette production includes a working paper reel and a spare paper reel. A color mark sensor is installed on the side (such as on the left side) of the working paper reel. A black mark is set at L0=50 meters before the end of each paper reel. When the color mark sensor detects the corresponding mark, the machine continues to run for a period of time, and then the machine speed of the cigarette making machine begins to slow down. After the machine speed reaches a set splicing speed, the splicing speed is maintained; when the color mark sensor detects the black mark, the spare paper reel motor begins to accelerate and accelerates to the splicing speed, the working paper reel and the spare paper reel complete the splicing work, and the cigarettes at the marked position and the cigarettes at the splicing position will be rejected at the rejection wheel.

[0007] A method for accurately controlling the amount of paper reels in cigarette production includes a working paper reel and a spare paper reel. An angular velocity sensor is installed on the left side of the working paper reel to record the angular velocity ω of the working paper reel shaft in real time. The real-time speed V of the machine is collected through a communication interface, and the speed is calculated and output. When R iWhen it is equal to the initially set splicing radius R1, it continues to run for a while, and then controls the machine (cigarette making machine) to start decelerating to reach the set splicing speed and maintain the splicing speed. When the spare paper reel speed reaches the machine splicing speed V2, the spare paper reel motor starts to accelerate and accelerates to the splicing speed. The working paper reel and the spare paper reel complete the splicing work, and the cigarettes at the marked position and the cigarettes at the splicing position will be rejected at the rejection wheel.

[0008] In the actual production process, when the color mark sensor fails to effectively detect the distance mark on the paper roll or the size of the bottom circle of the paper roll is inconsistent, resulting in an unstable splicing radius, a dual detection mechanism is set up. This dual detection mechanism reduces the dependence on a single sensor data and increases the redundancy and accuracy of the system. The solution is:

[0009] A method for accurately controlling the amount of paper reels in cigarette production comprises a working paper reel and a spare paper reel, wherein a color mark sensor is installed on the left side of the working paper reel, and a black mark is set at L0=50 meters before the end of each paper reel; a color mark sensor and an angular velocity sensor are installed on the left side of the working paper reel, and when the color mark sensor detects a corresponding mark or reaches an initially set splicing radius, the cigarette machine continues to run for a period of time, and then starts to decelerate, and starts to maintain the set splicing speed, and when the corresponding mark is detected, the spare paper reel motor starts to accelerate and reaches the splicing speed, the working paper reel and the spare paper reel complete the splicing work, and the cigarettes at the marked position and the cigarettes at the splicing position will be rejected by the rejection wheel.

[0010] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of a method for accurately controlling the amount of coil paper remaining in cigarette production according to the present invention.

[0011] The working mechanism and beneficial effects of the present invention include:

[0012] (1) Marking distances on the auxiliary materials. Marking distances on the auxiliary materials can provide a very precise reference point for the control system. Traditional control methods may require complex sensor arrangements and data processing. Marking distances on the auxiliary materials simplifies the process because the markings directly provide the required information, reducing the reliance on additional high-precision sensors and reducing problems caused by sensor failure or data errors. In addition, this method can be easily adapted to different production environments and types of roll-type auxiliary materials because the markings can be directly applied to different raw and auxiliary materials for tobacco. It provides a simple, direct and cost-effective method to achieve precise detection and control of the paper roll position.

[0013] (2) Adaptive adjustment method. This method can dynamically respond to changes in the production process, such as changes in the thickness of the paper roll, changes in machine speed, etc. By adjusting T0 and R1 in real time, it ensures precise control under different production conditions. It can self-optimize based on historical data and experience and continuously improve control accuracy. Traditional paper roll control systems usually use fixed parameters for control, while the adaptive adjustment method dynamically adjusts parameters according to actual production conditions.

[0014] (3) Dual detection mechanism. The color mark sensor is used to detect the specific color mark on the paper roll, while the speed sensor is used to measure the angular velocity of the reel shaft. This dual detection mechanism reduces the reliance on single sensor data and increases the redundancy and accuracy of the system. It provides richer data support for adaptive adjustment. Based on the information of the color mark and speed, the system can adjust T0 and R1 more accurately, and can more accurately control the splicing process of the paper roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0016] Example 1

[0017] A method for accurately controlling the amount of paper reels in cigarette production includes a working paper reel and a spare paper reel. A color mark sensor is installed on the side (such as on the left side) of the working paper reel. A black mark is set at L0=50 meters before the end of each paper reel. When the color mark sensor detects the corresponding mark, the machine continues to run for a period of time, and then the machine speed of the cigarette making machine begins to slow down. After the machine speed reaches a set splicing speed, the splicing speed is maintained; when the color mark sensor detects the black mark, the spare paper reel motor begins to accelerate and accelerates to the splicing speed, the working paper reel and the spare paper reel complete the splicing work, and the cigarettes at the marked position and the cigarettes at the splicing position will be rejected at the rejection wheel.

[0018] The specific steps of this method include:

[0019] (1) First set the parameters, including setting the initial delay time T0 = TS i (TS i is the initial delay time setting value of splicing, i represents the number of splicing cycles, i=0~N (initial value of i=0), in this embodiment, the first cycle TS0=2000ms), the acceleration time T4 is adjusted to be initially set to 0ms, the normal working speed V1 of the machine is 8.167mm / ms (calculated by setting the cigarette rolling speed of the machine in this embodiment to 7000 cigarettes per minute and the cigarette end length to 70mm), the splicing speed V2 is 6.533mm / ms (calculated by setting the splicing cigarette rolling speed to 5600 cigarettes per minute and the cigarette end length to 70mm), and the target distance L1=48 meters;

[0020] (2) The program starts to loop and continuously detects the status of the color mark sensor and the real-time speed V of the machine (collected through the communication interface);

[0021] (3) When the color mark sensor detects the black mark, the machine (cigarette making machine) is controlled to continue running at the normal working speed V1 (8.167 mm / ms×60=490 m / min) for T0 (2000 ms), and the time T1 for the machine to decelerate from the preparation splicing speed V1 to the machine splicing speed V2 is recorded; at the same time, a start acceleration signal is sent to the spare paper reel motor controller, and when the spare paper reel speed reaches the machine splicing speed V2 (6.533 mm / ms×60=392 m / min), the control paper reel splicing device starts to move, completes the paper reel splicing work, and records the time T3 for the machine to decelerate from the preparation splicing speed V1 to the machine splicing speed V2;

[0022] (4) Calculate the actual distance S of the working paper. (in the formula Indicates the distance that the machine real-time speed V travels during the process of gradually changing from the preparation splicing speed V1 to the machine splicing speed V2 in T1 time), corrected TS i ,judge:

[0023] When S is less than 48 meters, it means that the remaining amount of working paper is too much, and the initial delay time T0 should be delayed (increased) by T4. At this time, TS i =TS i +T4;

[0024] When it is judged that S>48 meters, it means that the remaining amount of working paper is too little, and the start delay time T0 should be advanced (reduced) by T4. At this time, TS i =TS i -T4;

[0025] When it is judged that S=48 meters, it means that the remaining amount of paper in the working disk is just right, and the initial delay time TS is maintained. i constant;

[0026] (5) i=i+1, repeat steps (2) to (4).

[0027] Example 2

[0028] A method for accurately controlling the amount of paper reels in cigarette production includes a working paper reel and a spare paper reel. An angular velocity sensor is installed on the left side of the working paper reel to record the angular velocity ω of the working paper reel shaft in real time. The real-time speed V of the machine is collected through a communication interface, and the speed is calculated and output. When R iWhen it is equal to the initially set splicing radius R1, it continues to run for a while, and then controls the machine (cigarette making machine) to start decelerating to reach the set splicing speed and maintain the splicing speed. When the spare paper reel speed reaches the machine splicing speed V2, the spare paper reel motor starts to accelerate and accelerates to the splicing speed. The working paper reel and the spare paper reel complete the splicing work, and the cigarettes at the marked position and the cigarettes at the splicing position will be rejected at the rejection wheel.

[0029] The specific steps of this method include:

[0030] (1) First, set the parameters, including setting the initial splicing disk radius R1 to 140 cm and the initial splicing disk radius R i =R1; set the initial delay time T0 (T0 = 2000ms), the normal working speed V1 of the machine is 8.167mm / ms (calculated by setting the cigarette rolling speed of the machine in this embodiment to 7000 cigarettes per minute and the cigarette end length to 70mm), the splicing speed V2 is 6.533mm / ms (calculated by setting the splicing cigarette rolling speed to 5600 cigarettes per minute and the cigarette end length to 70mm), the target distance L1 = 48 meters; i represents the number of splicing cycles, i = 0 ~ N;

[0031] (2) The program starts to loop and continuously detects the real-time speed V of the machine (collected through the communication interface) and the working angular velocity ω of the paper roller;

[0032] (3) Real-time recording of the work paper angular velocity ω and the machine real-time velocity V, calculation and output of the work paper When Ri=R1 (R1 is 140cm), continue to run at the normal working speed V1 (8.167mm / ms×60=490m / min) for T0 (2000ms), and start recording the time T1 from the machine preparation splicing speed V1 to the machine splicing speed V2; at the same time, send a start acceleration signal to the spare paper reel motor controller, and when the spare paper reel speed reaches the machine splicing speed V2 (6.533mm / ms×60=392m / min), control the paper reel splicing device to start action and complete the paper reel splicing work. Record the paper reel radius R2 at this time and the time T3 from the preparation splicing speed V1 to the machine splicing speed V2;

[0033] (4) Calculate the actual distance S of the working paper. (in the formula Indicates the distance that the machine real-time speed V travels during the process of gradually changing from the preparation splicing speed V1 to the machine splicing speed V2 in T1 time), corrected TS i ,judge:

[0034] When S≠48 meters, R i is R1;

[0035] When S = 48, R i Automatically adjusted to R2;

[0036] (5) i=i+1, repeat steps (2) to (4).

[0037] Example 3

[0038] In the actual production process, combined with the situations in Example 1 and Example 2, when the color mark sensor fails to effectively detect the distance mark on the paper coil or the size of the bottom circle of the paper coil is inconsistent, resulting in an unstable splicing radius, a dual detection mechanism is set. This dual detection mechanism reduces the reliance on a single sensor data and increases the redundancy and accuracy of the system.

[0039] A method for accurately controlling the amount of paper reels in cigarette production comprises a working paper reel and a spare paper reel, wherein a color mark sensor is installed on the left side of the working paper reel, and a black mark is set at L0=50 meters before the end of each paper reel; a color mark sensor and an angular velocity sensor are installed on the left side of the working paper reel, and when the color mark sensor detects a corresponding mark or reaches an initially set splicing radius, the cigarette machine continues to run for a period of time, and then starts to decelerate, and starts to maintain the set splicing speed, and when the corresponding mark is detected, the spare paper reel motor starts to accelerate and reaches the splicing speed, the working paper reel and the spare paper reel complete the splicing work, and the cigarettes at the marked position and the cigarettes at the splicing position will be rejected by the rejection wheel.

[0040] The steps of the method include:

[0041] (1) First, set parameters, including the contents of Example 1 and Example 2; i represents the number of splicing cycles, i=0-N;

[0042] (2) The program starts to loop and continuously detects the status of the color mark sensor, the real-time speed V of the machine (collected through the communication interface), and the working angular speed ω of the paper roller;

[0043] (3) When the color mark sensor detects the black mark (i.e., there is a color mark signal), the angular velocity ω of the work paper and the real-time speed V of the machine are recorded in real time, and the work paper angular velocity ω is calculated and output. When Ri=R1 (i.e. there is a radius signal, R1 is 140 cm in this embodiment), set the judgment condition:

[0044] If both the color mark signal and the radius signal exist, the color mark signal is used as the input signal first;

[0045] If there is only a color scale signal but no radius signal, use the color scale signal as the input signal;

[0046] If there is only radius signal but no color scale signal, use radius signal as input signal;

[0047] (4) When receiving the input signal, the machine continues to run at a speed of 490 meters per minute for 2000ms, and starts to record the time T1 from the machine speed V1 to the splicing speed V2; at the same time, after receiving the signal, the spare paper reel acceleration motor controller controls the paper reel acceleration motor to start accelerating. When the spare paper reel speed reaches 392 meters per minute, the controller controls the paper reel splicing device to operate and complete the paper reel splicing work. Record the paper reel radius R2 at this time and the time T3 from the splicing preparation speed V1 to the machine splicing speed V2;

[0048] (5) Calculate the actual distance S, At the same time, it is judged that when S is less than 48 meters, the remaining amount is too much, and the acceleration time T4 should be delayed. At this time, TS i =TS i -T4, R i is R1;

[0049] When S>48 meters, the remaining amount is too small, and the acceleration time T4 should be advanced. At this time, TS i =TS i -T4, R i is R1;

[0050] When S = 48 meters, the remaining amount is just right, keep and record the splicing radius R2, R i Automatically adjusted to R2;

[0051] (6) i=i+1, repeat steps (2)-(5).

Claims

1. A method for accurately controlling the remaining amount of coil paper in cigarette production, comprising working coil paper and spare coil paper, characterized in that: A color mark sensor is installed on the side of the working paper roll, and a black mark is set at L0 meters before the end of each paper roll. When the color mark sensor detects the corresponding mark, it continues to run for a period of time, and then the machine speed of the cigarette making machine begins to slow down. After the machine speed reaches the set splicing speed, the splicing speed is maintained; at the same time when the color mark sensor detects the black mark, the spare paper roll motor starts to accelerate and accelerates to the splicing speed. The working paper roll and the spare paper roll complete the splicing work, and the cigarettes at the marked position and the splicing position will be rejected by the rejection wheel.

2. The method for accurately controlling the remaining coil paper in cigarette production according to claim 1, characterized in that: The following steps are involved: (1) Set parameters, including: Initial delay time T0 = TS i , adjust the acceleration time T4 to the initial setting of 0ms, the normal working speed of the machine V1, the splicing speed V2 and the target distance L1; the TS i Set the initial delay time for the splicing. The first cycle TS i TS0, i represents the number of splicing cycles, and the initial value of i = 0; (2) The program starts to loop, continuously detecting the status of the color mark sensor and collecting the real-time speed V of the machine through the communication interface; (3) When the color mark sensor detects the black mark, the machine is controlled to continue running at the normal working speed V1 T0, and the time T1 of the machine decelerating from the preparation splicing speed V1 to the machine splicing speed V2 is recorded; at the same time, a start acceleration signal is sent to the spare paper reel motor controller, and when the spare paper reel speed reaches the machine splicing speed V2, the paper reel splicing device is controlled to start moving, complete the paper reel splicing work, and record the time T3 of the machine decelerating from the preparation splicing speed V1 to the machine splicing speed V2; (4) Calculate the actual distance S of the working paper. Fix TS i ,judge: When S is less than 48 meters, it means that the remaining amount of paper in the working disk is too much, and the initial delay time T0 should be increased by T4. At this time, TS i =TS i +T4; When it is judged that S>48 meters, it means that the remaining amount of working paper is too little, and the starting delay time T0 should be reduced by T4. At this time, TS i =TS i -T4; When S=48 meters, it means that the remaining amount of paper in the working reel is just enough, and the initial delay time TS is maintained. i constant; (5) i=i+1, repeat steps (2) to (4).

3. The method for accurately controlling the remaining amount of coil paper in cigarette production according to claim 2, characterized in that: The normal working speed V1 of the machine is 8.167 mm / ms, the splicing speed V2 is 6.533 mm / ms, L0=50 meters, L1=48 meters, and TS0=2000 ms.

4. A method for accurately controlling the remaining amount of coil paper in cigarette production, comprising working coil paper and spare coil paper, characterized in that: An angular velocity sensor is installed on the left side of the working paper roll to record the angular velocity ω of the working paper roll shaft in real time. The real-time speed V of the machine is collected through the communication interface, calculated and output When R i When it is equal to the initially set splicing radius R1, it continues to run for a while, and then controls the machine (cigarette making machine) to start decelerating to reach the set splicing speed and maintain the splicing speed. When the spare paper reel speed reaches the machine splicing speed V2, the spare paper reel motor starts to accelerate and accelerates to the splicing speed. The working paper reel and the spare paper reel complete the splicing work, and the cigarettes at the marked position and the cigarettes at the splicing position will be rejected at the rejection wheel.

5. The method for accurately controlling the remaining coil paper in cigarette production according to claim 2, characterized in that: The following steps are involved: The specific steps of this method include: (1) Set parameters, including: The initial splicing disk radius R1, let the initial splicing disk radius R i = R1; initial delay time T0, normal machine speed V1, splicing speed V2 is 6.533mm / ms, target distance L1; i represents the number of splicing cycles, i = 0 ~ N; (2) The program starts to loop and collects the real-time speed V of the machine and the working angular velocity ω of the paper roller through the communication interface; (3) Real-time recording of the work paper angular velocity ω and the machine real-time velocity V, calculation and output of the work paper When Ri=R1, the machine continues to run at the normal working speed V1 T0, and starts to record the time T1 from the machine preparation splicing speed V1 to the machine splicing speed V2; at the same time, a start acceleration signal is sent to the spare paper reel motor controller, and when the spare paper reel speed reaches the machine splicing speed V2, the paper reel splicing device is controlled to start moving and complete the paper reel splicing work; the paper reel radius R2 at this time and the time T3 from the preparation splicing speed V1 to the machine splicing speed V2 are recorded; (4) Calculate the actual distance S of the working paper. Fix TS i : When S=L1, R i Automatically adjusted to R2, otherwise R i is R1; (5) i=i+1, repeat steps (2) to (4).

6. A method for accurately controlling the remaining amount of coil paper in cigarette production, comprising working coil paper and spare coil paper, characterized in that: A color mark sensor is installed on the left side of the working paper reel, and a black mark is set at L0 meters before the end of each roll of paper; a color mark sensor and angular velocity sensor are installed on the left side of the working paper reel. When the color mark sensor detects the corresponding mark or reaches the initially set splicing radius, it continues to run for a period of time, and then the cigarette machine starts to slow down, and starts to maintain the set splicing speed. When the corresponding mark is detected, the spare paper reel motor starts to accelerate and reaches the splicing speed. The working paper reel and the spare paper reel complete the splicing work, and the cigarettes at the marked position and the splicing position will be rejected by the rejection wheel.

7. The method for accurately controlling the remaining amount of coil paper in cigarette production according to claim 6, characterized in that: The following steps are involved: (1) Set parameters, including: The initial splicing disk radius R1, let the initial splicing disk radius R i = R1; initial delay time T0, normal machine speed V1, splicing speed V2, target distance L1; i represents the number of splicing cycles, i = 0 ~ N; (2) The program starts to loop and collects the real-time speed V of the machine and the working angular velocity ω of the paper roller through the communication interface; (3) Real-time recording of the work paper angular velocity ω and the machine real-time velocity V, calculation and output of the work paper When Ri=R1, the machine continues to run at the normal working speed V1 T0, and starts to record the time T1 from the machine preparation splicing speed V1 to the machine splicing speed V2; at the same time, a start acceleration signal is sent to the spare paper reel motor controller, and when the spare paper reel speed reaches the machine splicing speed V2, the paper reel splicing device is controlled to start moving and complete the paper reel splicing work; the paper reel radius R2 at this time and the time T3 from the preparation splicing speed V1 to the machine splicing speed V2 are recorded; (4) Calculate the actual distance S of the working paper. Fix TS i : When S=L1, R i Automatically adjusted to R2, otherwise R i is R1; (5) i=i+1, repeat steps (2) to (4).

8. The method for accurately controlling the remaining amount of coil paper in cigarette production according to claim 5 or 7, characterized in that: The normal working speed V1 of the machine is 8.167 mm / ms, the splicing speed V2 is 6.533 mm / ms, L0=50 meters, L1=48 meters, R1=140 cm, and T0=2000 ms.

9. A method for accurately controlling the amount of coil paper remaining in cigarette production according to any one of claims 1-3 or 6-8, characterized in that: The specific color mark is set to black.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of a method for accurately controlling the remaining amount of coil paper in cigarette production as described in any one of claims 1 to 9 are implemented.

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