A method and storage medium for precise control of remaining paper roll weight in cigarette production

Abstract

This invention discloses a method and storage medium for precise control of the remaining amount of cigarette roll paper in cigarette production. A color mark sensor is installed on the working roll paper, and a specific color mark is set at the end L0 meters of each roll paper length. When the color mark sensor detects the corresponding mark, the machine continues to run for a period of time, then decelerates to reach the set splicing speed and maintains it. Simultaneously with the detection of the corresponding mark, the spare roll paper acceleration motor begins to accelerate, directly reaching the splicing speed. At this point, the working roll paper and the spare roll paper complete the splicing process, and the cigarettes at the marked and spliced ​​locations are rejected by the rejection wheel. This invention provides a simple, direct, and cost-effective method for precise detection and control of the roll paper position.

Description

Technical Field

[0001] This invention relates to the field of cigarette manufacturing, and more specifically, to a method and storage medium for precise control of the remaining amount of cigarette paper in cigarette production. Background Technology

[0002] In cigarette production, cigarette roll paper is a commonly used material, and its efficiency and accuracy directly affect product cost. During the roll paper splicing process, differences in the size of the inner roll and the accuracy of the detection method can lead to inconsistent roll paper allowances. The existing method for detecting the diameter of the remaining roll paper is pulse reference. The cylinder shaft has 8 pulses per revolution, and the ERP pulse is compared with the cylinder shaft pulse to determine whether the roll paper needs to be spliced. This method has low detection accuracy. In actual production, the roll paper allowance is maintained at around 18 meters, resulting in significant waste and increased costs.

[0003] Therefore, how to provide a method that can accurately control the remaining amount of paper on the roll has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0004] The purpose of this invention is to provide a method for precise control of the remaining amount of paper rolls in cigarette production.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A method for precise control of the remaining amount of cigarette roll paper in cigarette production includes working roll paper and spare roll paper. A color mark sensor is installed on the side of the working roll paper (e.g., on the left). A black mark is set at L0=50 meters before the end of each roll paper. When the color mark sensor detects the corresponding mark, the machine continues to run for a period of time. Then, the machine speed of the cigarette machine begins to decelerate. After the machine speed reaches the set splicing speed, it maintains that splicing speed. At the same time that the color mark sensor detects the black mark, the spare roll paper motor begins to accelerate and accelerates to the splicing speed. The working roll paper and the spare roll paper complete the splicing work. The cigarettes at the marked point and the cigarettes at the spliced ​​point will be rejected at the rejection wheel.

[0007] A method for precise control of roll paper balance in cigarette production includes a working roll paper and a spare roll paper. An angular velocity sensor is installed on the left side of the working roll paper to record the angular velocity of the working roll paper drum shaft in real time. The machine's real-time speed V is collected through the communication interface, calculated, and output. When R iWhen the splicing radius R1 is equal to the initial setting, continue running for a period of time, and then control the machine (cigarette machine) to start decelerating to reach the set splicing speed. Maintain this splicing speed. When the speed of the spare paper roll reaches the machine splicing speed V2, 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. The cigarettes at the marked point and the cigarettes at the splicing point will be removed at the rejection wheel.

[0008] In actual production, when the color mark sensor fails to effectively detect the distance mark on the paper roll or the inconsistent size of the paper roll bottom ring leads to an unstable splicing radius, a dual detection mechanism is implemented. This dual detection mechanism reduces reliance on data from a single sensor and increases the system's redundancy and accuracy. The solution is as follows:

[0009] A method for precise control of the remaining amount of cigarette roll paper in cigarette production includes a working roll paper and a spare roll paper. A color mark sensor is installed on the left side of the working roll paper. A black mark is set at L0=50 meters before the end of each roll paper. A color mark sensor and an angular velocity sensor are also installed on the left side of the working roll paper. When the color mark sensor detects the corresponding mark or reaches the initial set splicing radius, the machine continues to run for a period of time. Then, the cigarette rolling machine begins to decelerate and maintains the set splicing speed. At the same time as the corresponding mark is detected, the spare roll paper motor begins to accelerate and reaches the splicing speed. The working roll paper and the spare roll paper complete the splicing work. The cigarettes at the marked point and the cigarettes at the spliced ​​point are both rejected at the rejection wheel.

[0010] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of a method for precise control of paper roll balance in cigarette production as described in this invention.

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

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

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

[0014] (3) Dual detection mechanism. The color mark sensor is used to detect specific color marks on the paper roll, while the speed sensor is used to measure the angular velocity of the roll shaft. This dual detection mechanism reduces the reliance on data from a single sensor 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 precisely, and can control the paper roll splicing process more accurately. Attached Figure Description

[0015] Figure 1 This is a flowchart of the method of the present invention. Detailed Implementation

[0016] Example 1

[0017] A method for precise control of the remaining amount of cigarette roll paper in cigarette production includes working roll paper and spare roll paper. A color mark sensor is installed on the side of the working roll paper (e.g., on the left). A black mark is set at L0=50 meters before the end of each roll paper. When the color mark sensor detects the corresponding mark, the machine continues to run for a period of time. Then, the machine speed of the cigarette machine begins to decelerate. After the machine speed reaches the set splicing speed, it maintains that splicing speed. At the same time that the color mark sensor detects the black mark, the spare roll paper motor begins to accelerate and accelerates to the splicing speed. The working roll paper and the spare roll paper complete the splicing work. The cigarettes at the marked point and the cigarettes at the spliced ​​point 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 The initial delay time setting for splicing is set as follows: 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 initially set to 0ms, the normal machine speed V1 is 8.167mm / ms (calculated based on the machine cigarette rolling speed of 7000 cigarettes per minute and the cigarette end length of 70mm in this embodiment), the splicing speed V2 is 6.533mm / ms (calculated based on the splicing cigarette rolling speed of 5600 cigarettes per minute and the cigarette end length of 70mm), and the target distance L1 = 48 meters.

[0020] (2) The program starts looping, continuously detecting the status of the color mark sensor and the machine's real-time speed V (acquired through the communication interface).

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

[0022] (4) Calculate the actual distance S of the working paper disc. (In the formula (This represents the distance the working disc travels during the process of the machine's real-time speed V gradually increasing from the preparation splicing speed V1 to the machine splicing speed V2 over time T1). TS is corrected. i ,judge:

[0023] When S < 48 meters, it indicates that the remaining amount of paper on the working disc is too high. The initial delay time T0 should be delayed (increased) by T4. Calculate... At this time, TS i =TS i +T4;

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

[0025] When S = 48 meters, it means the remaining amount of paper on the working disc is just right, maintaining the initial delay time TS. i constant;

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

[0027] Example 2

[0028] A method for precise control of roll paper balance in cigarette production includes a working roll paper and a spare roll paper. An angular velocity sensor is installed on the left side of the working roll paper to record the angular velocity of the working roll paper drum shaft in real time. The machine's real-time speed V is collected through the communication interface, calculated, and output. When R i When the splicing radius R1 is equal to the initial setting, continue running for a period of time, and then control the machine (cigarette machine) to start decelerating to reach the set splicing speed. Maintain this splicing speed. When the speed of the spare paper roll reaches the machine splicing speed V2, 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. The cigarettes at the marked point and the cigarettes at the splicing point will be removed at the rejection wheel.

[0029] The specific steps of this method include:

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

[0031] (2) The program starts looping, continuously detecting the machine's real-time speed V (acquired through the communication interface) and the working paper angular velocity of the paper roll. ;

[0032] (3) Record the angular velocity of the working paper disc in real time. Calculate and output the working disc paper based on the machine's real-time speed V. When Ri = R1 (R1 is 140cm), the machine continues to run at the normal operating speed V1 (8.167mm / ms × 60 = 490 m / min) for T0 (2000ms). The time T1 from the machine's preparation splicing speed V1 to the machine splicing speed V2 is recorded. Simultaneously, a start acceleration signal is sent to the spare paper tray motor controller. When the spare paper tray speed reaches the machine splicing speed V2 (6.533mm / ms × 60 = 392 m / min), the paper tray splicing device begins operation, completing the paper tray splicing work. The paper tray radius R2 at this time and the time T3 from decelerating from the preparation splicing speed V1 to the machine splicing speed V2 and completing the splicing are recorded.

[0033] (4) Calculate the actual distance S of the working paper disc. (In the formula (This represents the distance the working disc travels during the process of the machine's real-time speed V gradually increasing from the preparation splicing speed V1 to the machine splicing speed V2 over time T1). TS is corrected. i ,judge:

[0034] When S≠48 meters, R i R1;

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

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

[0037] Example 3

[0038] In actual production, in conjunction with the situations in Embodiments 1 and 2, when the color mark sensor fails to effectively detect the distance mark on the paper roll or the inconsistent size of the bottom ring of the paper roll leads to an unstable splicing radius, a dual detection mechanism is set up. This dual detection mechanism reduces the dependence on data from a single sensor and increases the redundancy and accuracy of the system.

[0039] A method for precise control of the remaining amount of cigarette roll paper in cigarette production includes a working roll paper and a spare roll paper. A color mark sensor is installed on the left side of the working roll paper. A black mark is set at L0=50 meters before the end of each roll paper. A color mark sensor and an angular velocity sensor are also installed on the left side of the working roll paper. When the color mark sensor detects the corresponding mark or reaches the initial set splicing radius, the machine continues to run for a period of time. Then, the cigarette rolling machine begins to decelerate and maintains the set splicing speed. At the same time as the corresponding mark is detected, the spare roll paper motor begins to accelerate and reaches the splicing speed. The working roll paper and the spare roll paper complete the splicing work. The cigarettes at the marked point and the cigarettes at the spliced ​​point are both rejected at the rejection wheel.

[0040] The steps of this method include:

[0041] (1) First, set the parameters, including the contents of Example 1 and Example 2; use i to represent the number of splicing loops, i=0~N;

[0042] (2) The program starts looping, continuously detecting the status of the color mark sensor, the real-time speed V of the machine (acquired through the communication interface), and the working paper angular velocity of the paper roll. ;

[0043] (3) When the color mark sensor detects a black mark (i.e., there is a color mark signal), the angular velocity of the working paper is recorded in real time. Calculate and output the working disc paper based on the machine's real-time speed V. When Ri = R1 (i.e., there is a radius signal; in this embodiment, R1 is 140cm), the following judgment condition is set:

[0044] If both color mark and radius signals exist, the color mark signal should be used as the input signal.

[0045] If only the color mark signal is available and no radius signal is available, the color mark signal is used as the input signal.

[0046] If only the radius signal is available and no color mark signal is available, the radius signal should be used as the input signal.

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

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

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

[0050] When S = 48 meters, the remaining amount is just right. Maintain and record the splicing radius R2 at this point. i Automatically adjust to R2;

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

Claims

1. A method for precise control of remaining paper roll amount in cigarette production, comprising working paper rolls and spare paper rolls, characterized in that, A color mark sensor is installed on the side of the working paper roll. A black mark is set at the end of each paper roll, approximately L0 meters from the end. When the color mark sensor detects the corresponding mark, the machine continues to run for a period of time. Then, the machine speed begins to decrease, and once the machine speed reaches the set splicing speed, it maintains that speed. Simultaneously with the color mark sensor detecting the black mark, the spare paper roll motor begins to accelerate until it reaches the splicing speed. At this point, the working paper roll and the spare paper roll complete the splicing process. Cigarettes at the marked location and at the spliced ​​location are both removed at the rejection wheel. This includes the following steps: (1) Set parameters, including: Initial delay time T0=TS i Adjust the acceleration time T4 to an initial setting of 0ms, the machine's normal operating speed V1, the stitching speed V2, and the target distance L1; the TS i Set the initial delay time for splicing, and loop TS for the first time. i For TS0, i represents the number of concatenation loop iterations, and the initial value of i is 0; (2) The program starts looping, continuously detecting the status of the color mark sensor and collecting the machine's real-time speed V through the communication interface; (3) When the color mark sensor detects a black mark, the machine is controlled to continue running at the normal operating speed V1 for T0, 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 roll motor controller. When the spare paper roll speed reaches the machine splicing speed V2, the paper roll splicing device is controlled to start operating and complete the paper roll splicing work. The time T3 for decelerating from the preparation splicing speed V1 to the machine splicing speed V2 and completing the splicing is recorded. (4) Calculate the actual distance S of the working paper disc. , correct TS i ,judge: When S < 48 meters, it indicates that the remaining paper on the working disc is too much, and the initial delay time T0 should be increased by T4. Calculate... At this time, TS i =TS i +T4; When S > 48 meters, it indicates that the remaining amount of paper on the working disc is too low, and the initial delay time T0 should be reduced by T4. At this time, TS i =TS i -T4; When S = 48 meters, it means the remaining amount of paper on the working disc is just right, maintaining the initial delay time TS. i constant; (5) i = i + 1, repeat steps (2) - (4).

2. A method for precise control of remaining paper roll amount in cigarette production, comprising working paper rolls and spare paper rolls, characterized in that, An angular velocity sensor is installed on the left side of the working paper roll to record the angular velocity of the working paper roll shaft in real time. The machine's real-time speed V is collected through the communication interface, calculated, and output. When R i When the initial splicing radius R1 is reached, the machine continues to run for a period of time. Then, the machine (cigarette machine) is controlled to decelerate to reach the set splicing speed and maintain this speed. When the spare paper speed reaches the machine splicing speed V2, the spare paper motor starts to accelerate and reaches the splicing speed. At this point, the working paper and spare paper complete the splicing process. Cigarettes at the marked points and at the spliced ​​points will be removed at the rejection wheel. This includes the following steps: The specific steps of this method include: (1) Set parameters, including: The initial splicing paper radius is R1, let the initial splicing paper radius R i Equal to 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 looping, and collects the machine's real-time speed V through the communication interface, and collects the working paper angular velocity of the paper roller in real time. ; (3) Record the angular velocity of the working paper disc in real time. Calculate and output the working disc paper based on the machine's real-time speed V. When Ri=R1, the machine continues to run at the normal operating speed V1 for T0, and the time T1 from the machine's 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 tray motor controller. When the spare paper tray speed reaches the machine splicing speed V2, the paper tray splicing device is controlled to start operating and complete the paper tray splicing work. The paper tray radius R2 at this time and the time T3 from decelerating from the preparation splicing speed V1 to the machine splicing speed V2 and completing the splicing are recorded. (4) Calculate the actual distance S of the working paper disc. , correct TS i : When S=L1, R i Automatically adjust to R2, otherwise R i R1; (5) i = i + 1, repeat steps (2) - (4).

3. A method for precise control of remaining paper roll amount in cigarette production, comprising working paper rolls and spare paper rolls, characterized in that, A color mark sensor is installed on the left side of the working paper roll, and a black mark is set at L0 meters before the end of each paper roll. A color mark sensor and an angular velocity sensor are also installed on the left side of the working paper roll. When the color mark sensor detects the corresponding mark or reaches the initially set splicing radius, the machine continues to run for a period of time. Then, the cigarette rolling machine begins to decelerate, reaching and maintaining the set splicing speed. Simultaneously with detecting the corresponding mark, the spare paper roll motor begins to accelerate and, upon reaching the splicing speed, the working paper roll and spare paper roll complete the splicing process. Cigarettes at the marked location and those at the spliced ​​location are removed at the rejection wheel. The process includes the following steps: (1) Set parameters, including: The initial splicing paper radius is R1, let the initial splicing paper radius R i Equal to R1; initial delay time T0, normal machine speed V1, splicing speed V2, target distance L1; i represents the splicing cycle number, i=0~N; (2) The program starts looping, and collects the machine's real-time speed V through the communication interface, and collects the working paper angular velocity of the paper roller in real time. ; (3) Record the angular velocity of the working paper disc in real time. Calculate and output the working disc paper based on the machine's real-time speed V. When Ri=R1, the machine continues to run at the normal operating speed V1 for T0, and the time T1 from the machine's preparation splicing speed V1 to the machine's splicing speed V2 is recorded. At the same time, a start acceleration signal is sent to the spare paper roll motor controller. When the spare paper roll speed reaches the machine's splicing speed V2, the paper roll splicing device is controlled to start operating and complete the paper roll splicing work. The paper roll radius R2 at this time and the time T3 when the machine decelerates from the preparation splicing speed V1 to the machine splicing speed V2 and completes the splicing are recorded. The time T3 when the working paper roll decelerates from the preparation splicing speed V1 to the machine splicing speed V2 is also recorded. (4) Calculate the actual distance S of the working paper disc. , correct TS i : When S=L1, R i Automatically adjust to R2, otherwise R i R1; (5) i = i + 1, repeat steps (2) - (4).

4. A method for precise control of paper roll balance in cigarette production according to any one of claims 1-3, characterized in that: The machine's normal operating speed V1 is 8.167 mm / ms, splicing speed V2 is 6.533 mm / ms, L0 = 50 meters, L1 = 48 meters, R1 = 140 cm, and T0 = 2000 ms.

5. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of a method for precise control of paper roll balance in cigarette production as described in any one of claims 1-4.

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