A method for optimizing the ratio of viscosity index of water-based glue for cigarette making

Abstract

The application provides a tobacco-making water-based adhesive viscosity index matching optimization method, and belongs to the technical field of detection. The tobacco-making water-based adhesive matching optimization method comprises the following steps: testing 64 groups of viscosity index matching tobacco-making water-based adhesives, screening the tobacco-making water-based adhesives meeting the machine running efficiency requirement, obtaining a test data set, and the test data set comprising viscosity index detection values of the tobacco-making water-based adhesives and machine running efficiency scores; using a deep learning network to establish a tobacco-making water-based adhesive viscosity index matching analysis model; using the test data set as a training set to train the tobacco-making water-based adhesive viscosity index matching model; establishing a cigarette production parameter data set, inputting the cigarette production parameter data set into the tobacco-making water-based adhesive viscosity index matching analysis model for calculation, obtaining the viscosity values of the tobacco-making water-based adhesives corresponding to the cigarette production parameter data set, and selecting the viscosity value and matching data of the tobacco-making water-based adhesive corresponding to the highest machine running efficiency score as the optimized matching of the viscosity index of the tobacco-making water-based adhesive.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of detection, and particularly relates to a water-based adhesive viscosity index detection device for cigarettes and a detection method thereof. BACKGROUND

[0002] The water-based adhesive for cigarettes is a very important cigarette auxiliary material and runs through all links of cigarette production. According to statistics, there are four categories of water-based adhesives used in the tobacco industry, including filter rod middle seam glue used in filter rod processing, jointing glue and mouth connecting glue used in cigarette rolling and jointing links, and packaging glue used in strip and small box packaging forming links. The rated production rate of rolling and packaging machines has applicability requirements for the viscosity index of the water-based adhesive for cigarettes. If the viscosity index does not match, it is easy to cause serious quality problems such as cigarette head falling, air leakage, burst, strip and small box packaging product opening and edge warping. In order to meet the needs of different cigarette models and production rates, the water-based adhesive of each category is further divided into 2-4 specifications, and the specifications of the water-based adhesive for cigarettes are numerous.

[0003] At present, there is no uniform and rigid provision for the detection method of the viscosity index of the water-based adhesive for cigarettes in the tobacco industry, which leads to the fact that the optimal ratio of the water-based adhesive for cigarettes is not clear. Cigarette enterprises conduct delivery inspection according to the brand and model of the viscosity meter and combined with experience, and the test results lack accuracy and objectivity, and have the problems of non-standard detection method and inaccurate results. SUMMARY

[0004] Therefore, the application provides a water-based adhesive viscosity index ratio optimization method for cigarette production, which can solve the problems of non-standard detection method and inaccurate results of the viscosity index of the water-based adhesive for cigarettes in the tobacco industry.

[0005] The application is implemented in the following manner:

[0006] The application provides a water-based adhesive viscosity index ratio optimization method for cigarette production, which comprises the following steps:

[0007] S1: 64 groups of viscosity index ratio water-based adhesives for cigarettes are comprehensively tested, covering two aspects of viscosity detection value and machine running efficiency, and the water-based adhesives for cigarettes meeting the machine running efficiency are screened, and are sorted from high to low according to the machine running efficiency, to obtain a cigarette production test data set, the test data set includes the viscosity index detection value and the machine running efficiency of the water-based adhesive for cigarettes used, and the water-based adhesive for cigarettes with the expected viscosity index ratio is obtained.

[0008] S2: a deep learning network is used to establish a water-based adhesive viscosity index ratio analysis model;

[0009] S3: the cigarette production test data set is used as a training data set, the viscosity data and the machine running efficiency index are input, and the water-based adhesive ratio is output, and the water-based adhesive viscosity index ratio model is trained.

[0010] S4: Establishing a cigarette production parameter dataset, including viscosity data, machine suitability evaluation, wherein the machine suitability evaluation is quantified by a machine satisfaction rate score, and inputting the cigarette production parameter dataset into a water-based adhesive ratio analysis model for calculation to obtain a water-based adhesive viscosity value corresponding to the cigarette production parameter dataset, and adding the water-based adhesive ratio data in the cigarette production parameter dataset;

[0011] S5: Sorting the cigarette production parameter dataset according to the machine satisfaction rate score from high to low, and selecting the water-based adhesive ratio data in the cigarette production parameter dataset with the highest machine satisfaction rate score as the water-based adhesive viscosity index optimization ratio.

[0012] On the basis of the above technical scheme, the water-based adhesive viscosity index ratio optimization method for cigarette production of the present application can be further improved as follows:

[0013] Among them, the viscosity index test in S1 is specifically:

[0014] First step: using a viscometer to detect the viscosity of 64 groups of different ratios of water-based adhesive used for producing 5 cigarette products in each group, recording the viscosity values of each group of water-based adhesive, eliminating the viscosity data that does not meet the machine running efficiency, and sorting the remaining viscosity data from high to low;

[0015] Among them, the machine running efficiency index in S3 is the number of machine downtime caused by water-based adhesive problems in the test period, which is ranked from high efficiency to low efficiency, corresponding to few downtime, moderate downtime and many downtime, respectively. Few downtime corresponds to 20 points, moderate downtime corresponds to 15 points, and many downtime corresponds to 5 points.

[0016] Among them, the test of machine satisfaction rate is to put the viscosity index ratio of water-based adhesive into the machine for testing, and the operator scores the satisfaction rate according to the machine running condition, which is respectively: very satisfied corresponds to 90%; satisfied corresponds to 80%; basically satisfied corresponds to 70%; dissatisfied corresponds to 60%.

[0017] Further, the specific steps of the viscosity index detection are:

[0018] First step: Put the water-based adhesive for cigarette production to be detected into a glass beaker;

[0019] Second step: Turn on the viscometer and preheat for one hour;

[0020] Third step: Fill the detection pool of the constant temperature bath with appropriate amount of distilled water or ultrapure water, connect the power supply, and turn on the switch of the constant temperature bath;

[0021] Fourth step: Put the glass cup into the constant temperature bath for temperature adjustment, and stir with a glass rod;

[0022] Fifth step: Take out the film on the surface of the sample with a glass rod or a spatula; observe whether there are air bubbles in the sample, and if there are air bubbles, gently stir them with a glass rod to eliminate them;

[0023] Sixth step: After uniform stirring and stable temperature, test the viscosity index.

[0024] Further, the specific operation of the third step of the viscosity index detection is:

[0025] Fill the detection pool of the constant temperature bath with an appropriate amount of distilled water or ultrapure water to ensure that the water level is appropriate after the sample is placed, and then connect the power supply, turn on the constant temperature bath, and adjust the temperature to the standard temperature for testing the viscosity index of the water-based glue for cigarettes.

[0026] Further, the standard temperature for testing the viscosity index of the water-based glue for cigarettes is 25 degrees Celsius.

[0027] Further, the specific operation of the sixth step of the viscosity index detection is: Place the sample under the detection instrument, start the viscosity testing instrument, observe the rotation of the rotor, adjust the lifting knob on the side of the instrument when the rotor is stably rotating, slowly lower the detection module, make the rotor completely immersed in the sample without generating air bubbles, and record the value after the display page reading is stable, which is the viscosity value of the sample.

[0028] Further, the viscometer is a Brookfield rotational viscometer.

[0029] Further, the rotor and the rotation speed are selected to match the viscosity range. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0031] Figure 1 It is a flow chart of a viscosity index matching optimization method for a water-based glue for making cigarettes. DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0034] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0037] As Figure 1 shown, is a flowchart of a method for optimizing the viscosity index of a water-based adhesive for cigarette making provided by the present application, comprising the following steps:

[0038] S1: Test 64 groups of viscosity index ratio of water-based glue for cigarettes comprehensively, covering viscosity test value and machine running efficiency, screen water-based glue for cigarettes that meets machine running efficiency, and sort them from high to low according to machine running efficiency to obtain cigarette production test data set, which includes viscosity index test value and machine running efficiency of water-based glue for cigarettes, and obtain water-based glue for cigarettes viscosity index ratio that meets expectation.

[0039] S2: Establish water-based glue for cigarettes viscosity index ratio analysis model by using deep learning network.

[0040] S3: Train water-based glue for cigarettes viscosity index ratio model by taking cigarette production test data set as training data set, taking viscosity data and machine running efficiency index as input, and taking water-based glue for cigarettes ratio as output.

[0041] S4: Establish cigarette production parameter data set, including viscosity data and machine applicability evaluation, quantize machine applicability evaluation by machine satisfaction rate score, input cigarette production parameter data set into water-based glue for cigarettes ratio analysis model for calculation to obtain water-based glue for cigarettes viscosity value corresponding to the cigarette production parameter data set, and add water-based glue for cigarettes ratio data into the cigarette production parameter data set.

[0042] S5: Sort cigarette production parameter data set according to machine satisfaction rate score from high to low, and select water-based glue for cigarettes ratio data in cigarette production parameter data set with highest machine satisfaction rate score as water-based glue for cigarettes viscosity index optimized ratio.

[0043] In the above technical solution, the viscosity test in S1 is specifically:

[0044] First step: use viscometer to detect viscosity index of 64 groups of water-based glue with different ratios, record viscosity value of each group of water-based glue, and remove viscosity data that does not meet machine running efficiency, and sort remaining viscosity data from high to low.

[0045] In S3, machine running efficiency index is the number of shutdowns caused by water-based glue problem in test period, which is sorted from high efficiency to low efficiency, corresponding to few shutdowns, medium shutdowns and many shutdowns, few shutdowns corresponds to 20 points, medium shutdowns corresponds to 15 points, and many shutdowns corresponds to 5 points.

[0046] In S5, machine satisfaction rate test is to put water-based glue with viscosity index ratio into machine for test, and machine operator scores satisfaction rate according to machine running condition, which is: very satisfied corresponds to 90%; satisfied corresponds to 80%; basically satisfied corresponds to 70%; and dissatisfied corresponds to 60%.

[0047] Further, in the above technical solution, wherein the specific steps of viscosity index detection are:

[0048] First step: Put the water-based glue for cigarette into a glass beaker;

[0049] Second step: Turn on the viscometer and preheat for one hour;

[0050] Third step: Fill the detection pool of the constant temperature bath with appropriate amount of distilled water or ultrapure water, connect the power supply, and turn on the switch of the constant temperature bath;

[0051] Fourth step: Put the glass beaker into the constant temperature bath for temperature adjustment, and stir with a glass rod;

[0052] Fifth step: Take the film off the surface of the sample with a glass rod or spatula; observe whether there are air bubbles in the sample, and if there are, gently stir with a glass rod to eliminate the air bubbles;

[0053] Sixth step: After uniform stirring and stable temperature, perform viscosity test.

[0054] Further, in the above technical solution, wherein the specific operation of the third step of viscosity index detection is:

[0055] Fill the detection pool of the constant temperature bath with appropriate amount of distilled water or ultrapure water, ensure that the water level is appropriate after putting in the sample, then connect the power supply, turn on the constant temperature bath, and adjust the temperature to the standard temperature for viscosity index test of water-based glue for cigarette.

[0056] Further, in the above technical solution, the standard temperature for viscosity index test of water-based glue for cigarette is 25 degrees Celsius.

[0057] Further, in the above technical solution, wherein the specific operation of the sixth step of viscosity index detection is: Place the sample under the detection instrument, start the viscosity testing instrument, observe the rotation of the rotor, adjust the lifting knob on the side of the instrument when the rotor rotates stably, slowly lower the detection module so that the rotor is completely immersed in the sample without generating air bubbles, until the liquid surface of the sample reaches the indicated area on the rotor, i.e. the recessed part on the rotor, record the value after the display page reading is stable, which is the viscosity value of the sample.

[0058] Further, in the above technical solution, the viscometer is a Brookfield rotational viscometer.

[0059] Further, in the above technical solution, the rotor and the rotation speed are selected to match the viscosity range.

[0060] Example 1:

[0061] First, prepare the device for viscosity index test of water-based glue for cigarette, including the following:

[0062] 1. The sample container used is a glass beaker with a mouth diameter of not less than 80 mm and a body height of not less than 120 mm, and a capacity of about 600 ml.

[0063] 120mm, capacity 600ml or so.

[0064] 2. The auxiliary tools used are a glass rod for stirring the sample and a brush for cleaning the parts of the instrument, beaker, glass rod, etc. that contact the water-based adhesive.

[0065] 3. The constant temperature bath used is a Brookfield digital constant temperature water bath from the United States, model TC-502, with technical parameters including: dual-purpose cold and hot, temperature control range (-20~+150)℃; temperature control stability 0.05℃; internal working area volume 6L, with a built-in circulator.

[0066] 4. The detection instrument used is a Brookfield rotary viscometer from the United States, model DV-II+Pro, which can measure a wide range of viscosity liquids. The instrument uses liquid crystal display, and the displayed information includes: viscosity, temperature, shear stress / shear rate, torque, rotor number, speed, etc. The main components of the instrument include: lifting rotor, rotor, outer protective frame, temperature probe.

[0067] The viscometer produced by the American Brookfield company is known as the world standard for viscosity measurement, so the selection of this detection instrument can effectively ensure the accuracy and reliability of the test results. Through the investigation of the viscosity indicators of water-based adhesives for tobacco currently used in the industry, it is found that the commonly used water-based adhesive viscosity range is (40~7000) mPa.s, and the rotors provided by the instrument can meet the detection needs.

[0068] Then the viscosity index of the experimental group of water-based adhesives for tobacco is detected:

[0069] 1. Select the detection instrument: Brookfield rotary viscometer (USA), Brookfield constant temperature bath (USA), glass beaker with a capacity of 600 ml.

[0070] 2. Turn on the power, turn on the mechanical switch of the viscometer, and operate the start-up according to the instructions on the display screen, and ensure that the preheating time of the instrument is greater than 1 hour.

[0071] 3. Fill the detection pool of the constant temperature bath with appropriate amount of distilled water or ultrapure water, and make sure the water level is appropriate after putting in the sample. Turn on the power and turn on the switch of the constant temperature bath, adjust the knob and set the temperature of the constant temperature bath to (25±0.5)℃. The standard temperature for the viscosity index detection of water-based adhesives for tobacco is 25℃.

[0072] 4. Pour the sample to be tested into a glass beaker, and avoid generating bubbles. Ensure that the water-based glue in the beaker meets the depth required by the viscometer protection frame and the rotor, that is, the water-based glue liquid surface reaches the indication area on the rotor, and the protection frame does not touch the bottom and wall of the cup,

[0073] 5. Place the sample to be tested in the constant temperature bath detection pool for sample temperature adjustment, and stir with a glass rod to ensure that the temperature of each part of the sample is uniform, and to prevent the sample surface from forming a film, so that the sample temperature is stabilized at (25±0.5) °C.

[0074] 6. Check the viscosity range of the sample to be tested, install the protection frame and the rotor suitable for the viscosity value, click the "SELECT SPINDLE" key, adjust the "↑↓" key to set the matching rotor speed, click the "SET SPEED" key, and adjust the "↑↓" key to set the rotation speed.

[0075]

[0076] 7. Selection specification of rotor rotation speed:

[0077]

[0078] 8. If the sample surface forms a film, use a glass rod or a spatula to remove the film; observe whether the sample has bubbles, and if there are bubbles, gently stir them with a glass rod to eliminate the bubbles.

[0079]

[0080] 9. Place the sample under the detection instrument, click the "MOTOR" key to start the instrument to observe the rotation of the rotor, adjust the lifting knob on the side of the instrument when the rotor is stably rotating, slowly lower the detection module, so that the rotor is completely immersed in the sample without generating bubbles, until the liquid surface of the sample reaches the indication area on the rotor (i.e., the recessed part on the rotor), and record the value after the display page reading is stable. The value is the viscosity value of the sample.

[0081] If the temperature in the test room is not suitable and cannot guarantee that the temperature is stabilized at (25±0.5) °C during the sample detection process, the position of the viscometer and the constant temperature bath can be adjusted, so that the rotor and the protection frame of the viscometer are aligned with the constant temperature bath detection pool, and the viscosity detection is performed while the sample is in the constant temperature bath. The rotary viscometer and the constant temperature bath of Bolife can be used in combination to ensure the accuracy of the detection results.

[0082] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.​​

Claims

1. A method for optimizing the viscosity index ratio of water-based adhesives used in tobacco production, characterized in that, Includes the following steps: S1: A comprehensive test was conducted on 64 sets of viscosity index ratios for tobacco water-based adhesives, covering both viscosity test values ​​and machine operating efficiency. The tobacco water-based adhesives that met the machine operating efficiency were screened and sorted from high to low according to the machine operating efficiency to obtain a cigarette production test dataset. The test dataset includes the viscosity index test values ​​of the tobacco water-based adhesives used and the machine operating efficiency, thus obtaining the expected viscosity index ratios for tobacco water-based adhesives. S2: A deep learning network is used to establish a viscosity index ratio analysis model for water-based adhesives used in tobacco products; S3: Using the cigarette production test dataset as the training dataset, with viscosity data and machine operating efficiency index as inputs and the ratio of water-based adhesive for tobacco as output, the model for the viscosity index ratio of water-based adhesive for tobacco is trained. S4: Establish a cigarette production parameter dataset, including viscosity data and machine suitability evaluation. The machine suitability evaluation is quantified by machine satisfaction rate score. Input the cigarette production parameter dataset into the tobacco water-based adhesive ratio analysis model for calculation to obtain the viscosity value of the tobacco water-based adhesive corresponding to the cigarette production parameter dataset. Then, add the tobacco water-based adhesive ratio data to the cigarette production parameter dataset. S5: Sort the cigarette production parameter dataset from high to low according to the machine satisfaction rate score, and select the tobacco water-based adhesive ratio data from the cigarette production parameter data with the highest machine satisfaction rate score as the viscosity index of the tobacco water-based adhesive to optimize the ratio.

2. The method for optimizing the viscosity index ratio of water-based adhesives for tobacco production according to claim 1, characterized in that, in, The viscosity index test in S1 is specifically as follows: Step 1: Use a viscometer to test the viscosity of 64 groups of water-based adhesives with different ratios used in the production of 5 packs of cigarettes each. Record the viscosity values ​​of each group of water-based adhesives, remove viscosity data that do not meet the machine's operating efficiency, and sort the remaining viscosity data from high to low.

3. The method for optimizing the viscosity index ratio of water-based adhesives for tobacco production according to claim 1, characterized in that, in, The machine operating efficiency index in S3 represents the number of downtimes caused by water-based adhesive issues during the test period. It is divided into levels from high to low efficiency, corresponding to few downtimes, moderate downtimes, and many downtimes. Few downtimes correspond to 20 points, moderate downtimes correspond to 15 points, and many downtimes correspond to 5 points.

4. The method for optimizing the viscosity index ratio of water-based adhesives for tobacco production according to claim 1, characterized in that, The machine satisfaction rate test involves adding water-based adhesive with the specified viscosity ratio to the machine and testing it. The operator then scores the satisfaction rate based on the machine's operating condition, with the following scores: 90% for very satisfied; 80% for satisfied; 70% for basically satisfied; and 60% for dissatisfied.

5. The method for optimizing the viscosity ratio of water-based adhesives used in tobacco production according to claim 2, characterized in that, in, The specific steps for detecting the viscosity index are as follows: Step 1: Place the water-based adhesive from the tobacco production process to be tested into a glass beaker; Step 2: Turn on the viscometer and preheat it for one hour; Step 3: Fill the test tank of the constant temperature bath with an appropriate amount of distilled water or ultrapure water, connect the power supply, and turn on the switch of the constant temperature bath. Step 4: Place the glass in a constant temperature bath to adjust the temperature, and stir with a glass rod at the same time; Step 5: A film forms on the sample surface. Use a glass rod or scraper to remove the film. Observe whether there are air bubbles in the sample. If there are air bubbles, gently stir with a glass rod to eliminate them. Step 6: After stirring evenly and stabilizing the temperature, perform a viscosity test.

6. The method for optimizing the viscosity index ratio of water-based adhesives for tobacco production according to claim 5, characterized in that, in, The specific operation of the third step in the viscosity index detection is as follows: Fill the test cell of the constant temperature bath with an appropriate amount of distilled water or ultrapure water, ensuring that the water level is appropriate after the sample is placed in. Then turn on the power, turn on the constant temperature bath, and adjust the temperature to the standard temperature for viscosity testing of water-based adhesives for flue gas.

7. The method for optimizing the viscosity index ratio of water-based adhesives for tobacco production according to claim 6, characterized in that, The viscosity test standard temperature for the water-based adhesive used in the flue gas is 25 degrees Celsius.

8. The method for optimizing the viscosity index ratio of water-based adhesives for tobacco production according to claim 5, characterized in that, in, The specific operation of the sixth step of the viscosity index detection is as follows: place the sample under the detection instrument, start the viscosity test instrument, observe the rotation of the rotor, and when the rotor rotates steadily, adjust the lifting knob on the side of the instrument to slowly lower the detection module so that the rotor is completely immersed in the sample without producing air bubbles, until the liquid level of the sample reaches the indicator area on the rotor, i.e. the recessed part on the rotor. After the reading on the display page stabilizes, record the value. This value is the viscosity value of the sample.

9. The method for optimizing the viscosity index ratio of water-based adhesives for tobacco production according to claim 5, characterized in that, The viscometer is a Bronispatial rotary viscometer.

10. The method for optimizing the viscosity index ratio of water-based adhesives for tobacco production according to claim 8, characterized in that, The selection of the rotor and rotational speed is adapted to the viscosity range.

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