Method for controlling moisture of cigarette finished product

Abstract

The invention discloses a method for controlling moisture of a cigarette finished product, and belongs to the technical field of moisture control in cigarette production. By accurately controlling the moisture content of the cigarette finished product, it can be ensured that parameters such as the smoke amount, the taste and the fragrance generated when each cigarette is burnt are kept consistent, so that the smoking experience of consumers is improved, impurities such as mildewing and worm damage generated in the cigarette processing and storing process can be reduced through appropriate moisture control, and the cigarette quality is improved. By introducing an intelligent control technology and automatic equipment, moisture control of the cigarette finished product can be more accurate and efficient, errors and labor intensity of manual operation can be reduced, the overall operation efficiency of a production line can be improved, and the production cost is reduced. And unnecessary energy consumption and raw material waste can be reduced through accurate moisture control, so that the production cost is reduced, rework and rejection rate caused by the moisture problem are reduced, and the production benefit can be further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of moisture control in cigarette production, and in particular relates to a method for controlling moisture in finished cigarette products. Background Art

[0002] In the cigarette production process, the moisture content of finished cigarettes is an important factor affecting the quality and taste of cigarettes. Traditional moisture control methods often have problems such as low precision and poor stability, which can hardly meet the demand for high-quality products in modern cigarette production. Therefore, a more precise and stable moisture control method is needed. Summary of the invention

[0003] The object of the present invention is to provide a method for controlling the moisture content of finished cigarette products to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: a method for controlling the moisture content of finished cigarette products, the steps of which include a moisture detection module, a data processing module, a target setting module, an intelligent adjustment module and a feedback verification module;

[0005] Moisture detection module: detect the moisture content of finished cigarettes:

[0006] According to the tolerance percentage control chart principle and the standard value of moisture content in finished cigarette products, as well as the upper and lower limits of moisture content in finished cigarette products, the warning control limit of moisture content in finished cigarette products is calculated:

[0007] (1) The moisture tolerance percentage of finished cigarette products is:

[0008] μ=(Mmax-Mmin) / Mstd×100%;

[0009] Where: μ = tolerance percentage;

[0010] Mmax - the maximum permissible moisture content. Cigarette products should not be higher than this moisture content value under any circumstances to prevent mold and other quality problems;

[0011] Mmin - minimum permissible moisture content. The moisture content of cigarette products should not be lower than this value under any circumstances to avoid the possibility that the burning characteristics and smoking taste of cigarettes may be affected due to too low moisture content;

[0012] Mstd - standard moisture content, the target moisture content in the production process of cigarette products, usually set at a value between the minimum and maximum allowable moisture contents;

[0013] The center line of the tolerance percentage control chart is μ=0, that is, the actual measured moisture value of the finished cigarette product is equal to the standard moisture value of the finished cigarette product; μ=-3σ, that is, the actual measured moisture value of the finished cigarette product is the standard moisture value of the finished cigarette product minus the lower limit of the standard moisture value of the finished cigarette product; μ=+3σ, that is, the actual measured moisture value of the finished cigarette product is the standard moisture value of the finished cigarette product plus the upper limit of the standard moisture value of the finished cigarette product. All detection points within the control limits of -3σ~+3σ are qualified points, and all detection points within the control limits of -2σ~+2σ are high-quality points. Therefore, the early warning control limit is set to ±2σ, which can be used to warn of possible process changes in advance. It is closer to the center line than the 3σ control limit, so the early warning limit range is μ±2σ.

[0014] (2) Since the moisture content of cigarettes is required to be between 12.5% ​​and 13.5%, the moisture tolerance range of finished cigarettes is the upper limit of the moisture content standard of finished cigarettes - the lower limit of the moisture content standard of finished cigarettes, that is:

[0015] The moisture tolerance range of finished cigarette products = 13.5%-12.5% ​​= 1%, so the moisture warning control limit of finished cigarette products is: the moisture standard value of finished cigarette products ± 2σ%.

[0016] Data processing module: transmits the data obtained by the moisture detection module to the control system, which processes and analyzes the data to obtain the moisture content of the current finished cigarette product;

[0017] Target setting module: Set the target moisture content range according to the quality standards and market demand of cigarette products;

[0018] Intelligent adjustment module: When it is detected that the moisture content of the finished cigarettes deviates from the target range, the control system automatically adjusts the relevant parameters on the production line (such as the temperature and humidity of the drying machine) to bring the moisture content back to the target range;

[0019] Feedback verification module: The adjusted finished cigarettes are subjected to moisture detection module again to verify whether the adjustment effect meets the requirements;

[0020] As a further preferred embodiment of the technical solution: a moisture detection module is respectively arranged after the tobacco drying machine and before the packaging machine of the cigarette production line;

[0021] As a further preferred embodiment of the present technical solution: the control system in the intelligent adjustment module processes and analyzes the data obtained by the moisture detection module through a preset algorithm.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can ensure that the parameters such as the amount of smoke, taste and aroma generated by each cigarette when burned remain consistent by accurately controlling the moisture content of the finished cigarettes, thereby improving the smoking experience of consumers, and proper moisture control can reduce the generation of impurities in the cigarettes during processing and storage, such as mildew, insect bites, etc., and maintain the purity and taste of the cigarettes. The present invention introduces intelligent control technology and automation equipment to make the moisture control of the finished cigarettes more accurate and efficient, which can not only reduce the errors and labor intensity of manual operations, but also improve the overall operating efficiency of the production line, and through precise moisture control, unnecessary energy consumption and waste of raw materials can be reduced, thereby reducing production costs, while reducing rework and scrap rates caused by moisture problems, and can further improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A flow chart of a method for controlling moisture content of a finished cigarette product according to the present invention;

[0024] Figure 2 The invention discloses a cigarette finished product moisture early warning control diagram of a cigarette finished product moisture control method. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example

[0027] See also Figure 1-Figure 2 As shown, the present invention provides a technical solution: a method for controlling the moisture content of finished cigarette products, the steps include a moisture detection module, a data processing module, a target setting module, an intelligent adjustment module and a feedback verification module;

[0028] Moisture detection module: detect the moisture content of finished cigarettes:

[0029] According to the tolerance percentage control chart principle and the standard value of moisture content in finished cigarette products, as well as the upper and lower limits of moisture content in finished cigarette products, the warning control limit of moisture content in finished cigarette products is calculated:

[0030] (1) The moisture tolerance percentage of finished cigarette products is:

[0031] μ=(Mmax-Mmin) / Mstd×100%;

[0032] Where: μ = tolerance percentage;

[0033] Mmax - the maximum permissible moisture content. Cigarette products should not be higher than this moisture content value under any circumstances to prevent mold and other quality problems;

[0034] Mmin - minimum permissible moisture content. The moisture content of cigarette products should not be lower than this value under any circumstances to avoid the possibility that the burning characteristics and smoking taste of cigarettes may be affected due to too low moisture content;

[0035] Mstd - standard moisture content, the target moisture content in the production process of cigarette products, usually set at a value between the minimum and maximum allowable moisture contents;

[0036] The center line of the tolerance percentage control chart is μ=0, that is, the actual measured moisture value of the finished cigarette product is equal to the standard moisture value of the finished cigarette product; μ=-3σ, that is, the actual measured moisture value of the finished cigarette product is the standard moisture value of the finished cigarette product minus the lower limit of the standard moisture value of the finished cigarette product; μ=+3σ, that is, the actual measured moisture value of the finished cigarette product is the standard moisture value of the finished cigarette product plus the upper limit of the standard moisture value of the finished cigarette product. All detection points within the control limits of -3σ~+3σ are qualified points, and all detection points within the control limits of -2σ~+2σ are high-quality points. Therefore, the early warning control limit is set to ±2σ, which can be used to warn of possible process changes in advance. It is closer to the center line than the 3σ control limit, so the early warning limit range is μ±2σ.

[0037] (2) Since the moisture content of cigarettes is required to be between 12.5% ​​and 13.5%, the moisture tolerance range of finished cigarettes is the upper limit of the moisture content standard of finished cigarettes - the lower limit of the moisture content standard of finished cigarettes, that is:

[0038] The moisture tolerance range of finished cigarette products = 13.5%-12.5% ​​= 1%, so the moisture warning control limit of finished cigarette products is: the moisture standard value of finished cigarette products ± 2σ%.

[0039] Data processing module: transmits the data obtained by the moisture detection module to the control system, which processes and analyzes the data to obtain the moisture content of the current finished cigarette product;

[0040] Target setting module: Set the target moisture content range according to the quality standards and market demand of cigarette products;

[0041] Intelligent adjustment module: When it is detected that the moisture content of the finished cigarettes deviates from the target range, the control system automatically adjusts the relevant parameters on the production line (such as the temperature and humidity of the drying machine) to bring the moisture content back to the target range;

[0042] Feedback verification module: The adjusted finished cigarettes are subjected to moisture detection module again to verify whether the adjustment effect meets the requirements;

[0043] In this embodiment, specifically: a moisture detection module is respectively arranged after the tobacco drying machine and before the packaging machine of the cigarette production line;

[0044] In this embodiment, specifically: the control system in the intelligent adjustment module processes and analyzes the data obtained by the moisture detection module through a preset algorithm.

[0045] Working principle or structural principle:

[0046] Step 1: Install moisture detection modules after the tobacco drying machine and before the packaging machine in the cigarette production line to detect moisture in the tobacco after drying and the finished cigarettes before packaging.

[0047] Step 2: Transmit the data of the two moisture detection module instruments to the central control system. The control system processes and analyzes the data through a preset algorithm to obtain the moisture content of the current finished cigarette product.

[0048] Step 3: The control system sets the target moisture content range according to the quality standard of cigarette products and compares the moisture content detected in real time with the target range. If the moisture content is detected to deviate from the target range, the control system automatically adjusts the temperature, humidity and other parameters of the tofu drying machine according to the preset adjustment strategy until the moisture content returns to the target range.

[0049] Step 4: The adjusted finished cigarettes are tested again by the moisture detection module in front of the packaging machine to verify whether the adjustment effect meets the requirements. If it does not meet the requirements, continue to adjust until it is qualified.

[0050] It can be seen from this that the present invention aims to provide a method for controlling the moisture content of finished cigarette products, which achieves precise control of the moisture content of finished cigarette products through precise measurement, real-time feedback and intelligent adjustment, thereby improving the quality and stability of cigarette products.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for controlling moisture content of finished cigarette products, characterized in that: The steps include a moisture detection module, a data processing module, a target setting module, an intelligent adjustment module and a feedback verification module; Moisture detection module: detects the moisture content of finished cigarettes; According to the tolerance percentage control chart principle and the standard value of moisture content in finished cigarette products, as well as the upper and lower limits of moisture content in finished cigarette products, the warning control limit of moisture content in finished cigarette products is calculated: (1) The moisture tolerance percentage of finished cigarette products is: μ=(Mmax-Mmin) / Mstd×100%; Where: μ = tolerance percentage; Mmax - the maximum permissible moisture content. Cigarette products should not be higher than this moisture content value under any circumstances to prevent mold and other quality problems; Mmin - minimum permissible moisture content. The moisture content of cigarette products should not be lower than this value under any circumstances to avoid the possibility that the burning characteristics and smoking taste of cigarettes may be affected due to too low moisture content; Mstd - standard moisture content, the target moisture content in the production process of cigarette products, usually set at a value between the minimum and maximum allowable moisture contents; The center line of the tolerance percentage control chart is μ=0, that is, the actual measured moisture value of the finished cigarette product is equal to the standard moisture value of the finished cigarette product; μ=-3σ, that is, the actual measured moisture value of the finished cigarette product is the standard moisture value of the finished cigarette product minus the lower limit of the standard moisture value of the finished cigarette product; μ=+3σ, that is, the actual measured moisture value of the finished cigarette product is the standard moisture value of the finished cigarette product plus the upper limit of the standard moisture value of the finished cigarette product. All detection points within the control limits of -3σ~+3σ are qualified points, and all detection points within the control limits of -2σ~+2σ are high-quality points. Therefore, the early warning control limit is set to ±2σ, which can be used to warn of possible process changes in advance. It is closer to the center line than the 3σ control limit, so the early warning limit range is μ±2σ. (2) Since the moisture content of cigarettes is required to be between 12.5% ​​and 13.5%, the moisture tolerance range of finished cigarettes is the upper limit of the moisture content standard of finished cigarettes - the lower limit of the moisture content standard of finished cigarettes, that is: The moisture tolerance range of finished cigarette products = 13.5%-12.5% ​​= 1%, so the moisture warning control limit of finished cigarette products is: the moisture standard value of finished cigarette products ± 2σ%. Data processing module: The data obtained by the moisture detection module is transmitted to the control system, and the control system processes and analyzes the data to obtain the moisture content of the current finished cigarette product. Target setting module: Set the target moisture content range according to the quality standards and market demand of cigarette products. Intelligent adjustment module: When it is detected that the moisture content of the finished cigarettes deviates from the target range, the control system automatically adjusts the relevant parameters on the production line (such as the drying machine temperature, humidity, etc.) to bring the moisture content back to the target range. Feedback verification module: The adjusted finished cigarettes are subjected to moisture detection module again to verify whether the adjustment effect meets the requirements.

2. The method for controlling moisture content of finished cigarette products according to claim 1, characterized in that: A moisture detection module is respectively arranged after the tobacco drying machine and before the packaging machine of the cigarette production line.

3. The method for controlling moisture content of finished cigarette products according to claim 1, characterized in that: The control system in the intelligent adjustment module processes and analyzes the data obtained by the moisture detection module through a preset algorithm.

Images