CN110083888B - Method for predicting cigarette hardness - Google Patents
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Abstract
The invention relates to a method for predicting cigarette hardness, which comprises the steps of obtaining cigarette specification, cigarette material weight, tobacco shred filling value, cigarette equipment data and preset cigarette weight; respectively calculating the volume of the middle section of the cigarette, the volume of the tightening head of the ignition end and the volume of the tightening head of the nozzle end; calculating the amount of the tobacco shreds in the middle section according to the volume of the middle section of the cigarette, the volume of the lighting end fastening head and the volume of the mouth connecting end fastening head; calculating the radial sinking depth of the cigarettes, and calculating the radial sinking depth when the hardness of the cigarettes is measured according to the density of the middle sections of the cigarettes and the tobacco shred filling value; and predicting the hardness of the cigarette according to the radial sinking depth of the cigarette when the hardness is measured. The method can better predict the hardness of the cigarettes before production, further guide production according to the prediction result, avoid multiple product trial production during new product development or formula adjustment, greatly improve the production efficiency, reduce the consumption of materials and manpower, and realize the predictability of product design.
Description
Technical Field
The invention belongs to the technical field of cigarette design, and particularly relates to a method for predicting cigarette hardness.
Background
The hardness of the cigarette is that the radial direction of the sample is subjected to certain pressure within a certain time, and the percentage of the diameter of the sample after being pressed to the diameter of the sample before being pressed is the hardness. The hardness of the cigarette is an important physical index, the appearance of the cigarette is easily damaged in the conveying process of the cigarette due to too low hardness, a combustion cone falls off when a consumer sucks the cigarette, the smoking resistance of the cigarette, the smoke content and the tobacco shred consumption are increased due to too high hardness, and the proper hardness is very important for the appearance and the sensory quality of the cigarette. The cigarette hardness directly reflects the content of the cut tobacco, so the hardness is an important reference index for formulating the weight standard of the cigarette.
The research on the cigarette hardness in the current industry mainly focuses on the influence of factors such as cigarette weight, tobacco shred structure and tobacco shred filling capacity on the cigarette hardness.
At present, factors for researching the influence of cigarette hardness include Nikeling and the like 'analysis on the correlation between cigarette hardness and suction resistance and single cigarette weight', duckweed and the like 'influence of expanded cut stem filling capacity on cigarette hardness', liyongdian and the like 'research on the correlation between cigarette single quality and physical and smoke indexes', yao Ermin and the like 'research on the relation between tobacco shred structure and cigarette physical index based on regression analysis method', and the like, and the research contents have the following problems:
(1) Only the hardness influence factor research is carried out on the cigarettes with single specification, and the research result is not applicable when the cigarette specification changes.
(2) The influence relation of the single weight of the cigarette on the hardness is analyzed, the cut tobacco of the cigarette is not separated from the cigarette material, and the cut tobacco part is measured by the actual hardness of the cigarette.
(3) The cigarette hardness is measured at the middle section position of the cigarette after the filter stick is removed, the difference between the tight end and the middle section tobacco quantity of the cigarette is not considered in the research contents, and certain deviation exists in the research result.
(4) The research contents only make the research on the cigarette hardness influence factors, and the accurate prediction on the cigarette hardness cannot be made.
When a new product is developed or a formula is adjusted, the hardness of the cigarette can be obtained only by testing after the finished product cigarette is produced in a trial mode, the method has serious hysteresis and can cause larger consumption of raw and auxiliary materials, so that the hardness of the cigarette needs to be predicted before the cigarette is rolled, and production is guided according to the prediction result.
Disclosure of Invention
The invention aims to provide a method for predicting cigarette hardness, which aims to solve the problems that the prior art can not predict the cigarette hardness according to factors such as cigarette specification, tobacco shred characteristics or equipment specification before rolling cigarettes and can not guide production.
The invention is realized by the following technical scheme:
a method of predicting cigarette hardness, comprising the steps of:
1) Acquiring cigarette specification, cigarette material weight, tobacco shred filling value, cigarette equipment data and preset cigarette weight;
2) Setting the cigarette end tightening position to be the same as the density of the middle section of the cigarette, and respectively calculating the volume of the middle section of the cigarette, the volume of the end tightening of the lighting end and the volume of the end tightening of the connecting mouth end;
3) Calculating the tobacco quantity of the middle section of the cigarette, calculating the tobacco quantity according to the preset cigarette weight and the cigarette material weight, and calculating the tobacco quantity of the middle section according to the volume of the middle section of the cigarette, the volume of the lighting end fastening head and the volume of the mouth connecting end fastening head;
4) Calculating the radial sinking depth of the cigarettes, and calculating the radial sinking depth when the hardness of the cigarettes is measured according to the density of the middle sections of the cigarettes and the tobacco shred filling value;
5) And predicting the hardness of the cigarette according to the radial sinking depth of the cigarette when the hardness is measured.
The cigarette specification data at least comprises cigarette length, cigarette circumference and filter stick length.
The cigarette equipment data at least comprises the arc length, depth or diameter depth of the groove of the leveling disc of the cigarette making machine.
The volume of the middle section of the cigarette is calculated by the following formula:
wherein pi is a circumference ratio; v is the volume of the middle section of the cigarette in mm 3 (ii) a r is the cigarette radius in mm; l is the length of the cigarette without a mouth in mm; l 1 The ignition end is aligned with the arc length of the groove of the disc in unit mm; l. the 2 The arc length of the groove of the connecting mouth end leveling disc is in mm; when the cigarette has only one tight end at the lighting end,/ 2 Is 0;
the ignition end clamp volume is calculated by the following formula:
wherein v is 1 Is the volume of the ignition end fastening head in mm 3 ；l 1 The ignition end is aligned with the arc length of the groove of the disc in unit mm; r is the cigarette radius in mm; h is 1 The diameter of the groove of the flat disc is accurate for the ignition end, and the unit is mm; d 1 The depth of the groove of the flat disc at the ignition end is in mm;0.53 is the volume compression coefficient of the groove of the leveling disc;
the volume of the fastening head at the end of the nozzle is calculated by the following formula:
wherein v is 2 Is the volume of the end head of the nozzle, and the unit is mm 3 ；l 2 The arc length of the groove of the connecting nozzle end leveling disc is in mm; r is the cigarette radius in mm; h is 2 The diameter of a groove of a connecting nozzle end leveling disc is deep and is in unit of mm; d 2 The depth of a groove of a connecting nozzle end leveling disc is in unit mm;0.53 is flatThe volume compression coefficient of the groove of the quasi disc;
the tobacco quantity of the middle section of the cigarette is calculated by the following formula:
wherein m is the tobacco shred amount in the middle section of the cigarette and the unit g; m is 1 The weight of the cigarette is preset and is unit g; m is a unit of 2 Average cigarette accessory weight in g; v, v 1 、v 2 The volume of the middle section of the cigarette, the volume of the tight end of the lighting end and the volume of the tight end of the connecting mouth end which have the same density of the tight end and the middle section of the cigarette are respectively expressed in mm 3 。
The cigarette radial sinking depth is calculated according to the following formula:
wherein deep is the cigarette radial lower limit depth in unit mm when the cigarette hardness is measured; f is the tobacco filling value in cm 3 (iv) g; m is the amount of the tobacco shreds in the middle section of the cigarette in unit g; v is the volume of the middle section of the cigarette in mm 3 (ii) a d is the diameter of the cigarette in mm.
The cigarette hardness dd is calculated by the following formula:
dd＝(d-deep)/d×100％
wherein dd is the cigarette hardness, deep is the radial sinking depth of the cigarette when measuring the cigarette hardness, and the unit is mm, and d is the diameter of the cigarette, and the unit is mm.
The beneficial effects of the invention are:
the technology firstly provides a method for predicting the hardness of the cigarettes, the hardness of the cigarettes can be well predicted before production, production is guided according to a prediction result, multiple times of trial production during development of new products or formula adjustment are avoided, the production efficiency is greatly improved, the consumption of materials and manpower is reduced, and the predictability of product design is realized.
The method for predicting the cigarette hardness is convenient and quick to implement, is suitable for cigarettes of various specifications and brands, and has general applicability.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
Because the position that the cigarette hardness detected is located no filter tip cigarette and counts the middle section pipe tobacco content according to cigarette machine level dish recess specification and cigarette specification, the radial sunken depth of cigarette when measuring cigarette hardness is carried out the prediction to the cigarette to the pipe tobacco filling value of combining, and then predicts cigarette hardness.
The technical scheme comprises the following steps:
acquire a cigarette specification, in this embodiment, a cigarette specification includes at least a cigarette length, a cigarette circumference or filter rod length, according to actual needs, can also include other data.
The weight of the cigarette material is obtained, and the weight of the auxiliary material used by the cigarette is obtained. And setting the filling value of the predicted cigarette. And acquiring cigarette equipment data, wherein the cigarette equipment data at least comprises the arc length, the depth or the diameter depth of the groove of the leveling disc of the cigarette making machine. The cigarette weights are preset, and different preset cigarette weights are set according to the requirements of different specifications.
If the hardness of the cigarette with the brand is to be predicted, the information related to the cigarette with the brand is obtained and is shown in the table 1:
TABLE 1 cigarette information Table
In other embodiments of the present application, the data is different according to different brands and different specifications of cigarettes.
The technical scheme is that aiming at the prediction that the density of a cigarette tight end position is the same as the density of the middle section of the cigarette, the volume of the middle section of the cigarette without a mouth, the volume of a tight end at a lighting end and the volume of the tight end at a mouth connecting end are calculated respectively.
Wherein, the volume v of the middle section of the cigarette is calculated according to the following formula:
wherein pi is a circumference ratio; v is the volume of the middle section of the cigarette in mm 3 (ii) a r is the cigarette radius in mm; l is the length of the cigarette without a mouth in mm; l 1 The ignition end is aligned with the arc length of the groove of the disc, and the unit is mm; l. the 2 The arc length of the groove of the connecting mouth end leveling disc is in mm; when the cigarette has only one tight end at the lighting end,/, the cigarette is not lighted 2 Is 0.
According to table 1, cigarette middle section volume:
the firing end plug volume is calculated by the following equation:
wherein v is 1 Is the volume of the ignition end fastening head in mm 3 ；l 1 The ignition end is aligned with the arc length of the groove of the disc in unit mm; r is cigarette radius in mm; h is a total of 1 The diameter of the groove of the flat disc is accurate for the ignition end, and the unit is mm; d 1 The depth of the groove of the flat disc at the ignition end is in mm;0.53 is the normalized disk groove volume compressibility.
According to table 1, the lit end head volume of the cigarette is:
the nipple end grip volume is calculated by the following formula:
wherein v is 2 Is the volume of the end fastening head of the nozzle in mm 3 ；l 2 The arc length of the groove of the connecting nozzle end leveling disc is in mm; r is cigarette radius in mm; h is 2 The diameter of the groove of the connecting mouth end leveling disc is deep and is in unit mm; d is a radical of 2 The depth of the groove of the connecting mouth end leveling disc is unit mm;0.53 is the normalized disk groove volume compressibility.
According to table 1, the volume of the mouthpiece end of the cigarette is tight:
the amount of the tobacco shreds in the middle section of the cigarette is calculated by the following formula:
wherein m is the amount of the tobacco shreds in the middle section of the cigarette in unit g; m is a unit of 1 The weight of the cigarette is preset and is unit g; m is 2 Average cigarette accessory weight in g; v, v 1 、v 2 The volume of the middle section of the cigarette, the volume of the tightening end of the ignition end and the volume of the tightening end of the connecting mouth end which are respectively equal to the density of the tightening end of the cigarette and the density of the middle section of the cigarette, and the unit is mm 3 。
According to table 1, the amount of tobacco in the middle section of cigarette:
the radial sinking depth of the cigarette is calculated according to the following formula:
wherein deep is the cigarette radial lower limit depth in unit mm when the cigarette hardness is measured; f is the cut filler value incm 3 (ii)/g; m is the tobacco shred amount in the middle section of the cigarette and is unit g; v is the volume of the middle section of the cigarette in mm 3 (ii) a d is the diameter of the cigarette in mm.
According to table 1, the cigarette radial sag depth when measuring the hardness:
the cigarette hardness dd is calculated by the following formula:
dd＝(d-deep)/d×100％
wherein dd is the cigarette hardness, deep is the cigarette radial sinking depth in mm when measuring the cigarette hardness, and d is the cigarette diameter in mm.
According to the calculations of table 1 and above, the cigarette hardness is predicted:
thus, when the cigarette of this brand weighs 0.89g per cigarette, the predicted cigarette hardness is 66.2%.
Application instance statistics
Hardness prediction is carried out on 300 samples of different brands, and the results are compared with the actual detection results, and are shown in the table 2:
TABLE 2 prediction results
The prediction result shows that the absolute value of the error of the cigarette hardness prediction is 2.4% on average, and the cigarette hardness fluctuation range in normal production is mostly between 6% and 9%, which is obviously larger than the prediction error, so the cigarette hardness prediction method provided by the invention can be applied to the prediction of the cigarette hardness in actual production.
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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A method for predicting cigarette hardness is characterized by comprising the following steps:
1) Acquiring cigarette specification, cigarette material weight, tobacco shred filling value, cigarette equipment data and preset cigarette weight;
2) Setting the cigarette end tightening position to be the same as the density of the middle section of the cigarette, and respectively calculating the volume of the middle section of the cigarette, the volume of the end tightening of the lighting end and the volume of the end tightening of the connecting mouth end;
3) Calculating the tobacco quantity of the middle section of the cigarette, calculating the tobacco quantity according to the preset cigarette weight and the cigarette material weight, and calculating the tobacco quantity of the middle section according to the volume of the middle section of the cigarette, the volume of the lighting end fastening head and the volume of the mouth connecting end fastening head;
4) Calculating the radial sinking depth of the cigarettes, and calculating the radial sinking depth when the hardness of the cigarettes is measured according to the density of the middle sections of the cigarettes and the tobacco shred filling value;
5) And predicting the hardness of the cigarette according to the radial sinking depth of the cigarette when the hardness is measured.
2. The method according to claim 1, wherein the cigarette specification data at least comprises cigarette length, cigarette circumference and filter rod length.
3. The method of claim 1, wherein said cigarette equipment data comprises at least an arc length, depth or diameter depth of a cigarette maker leveling pan groove.
4. The method of claim 1, wherein the volume of the middle section of cigarette is calculated by the following formula:
wherein pi is a circumference ratio; v is the volume of the middle section of the cigarette in mm 3 (ii) a r is the cigarette radius in mm; l is the length of the cigarette without a mouth in mm; l. the 1 The ignition end is aligned with the arc length of the groove of the disc in unit mm; l 2 The arc length of the groove of the connecting mouth end leveling disc is in mm; when the cigarette has only one tight end at the lighting end,/, the cigarette is not lighted 2 Is 0;
the ignition end clamp volume is calculated by the following formula:
wherein v is 1 Is the volume of the ignition end fastening head in mm 3 ；l 1 The ignition end is aligned with the arc length of the groove of the disc in unit mm; r is the cigarette radius in mm; h is 1 The ignition end is aligned with the groove diameter depth of the disc, and the unit is mm; d 1 The ignition end is aligned with the groove depth of the disc, and the unit is mm;0.53 is the volume compression coefficient of the groove of the leveling disc;
the volume of the fastening head at the end of the nozzle is calculated by the following formula:
wherein v is 2 Is the volume of the end fastening head of the nozzle in mm 3 ；l 2 The arc length of the groove of the connecting nozzle end leveling disc is in mm; r is the cigarette radius in mm; h is 2 The diameter of a groove of a connecting nozzle end leveling disc is deep and is in unit of mm; d 2 The depth of a groove of a connecting nozzle end leveling disc is in unit mm;0.53 is the volume compression coefficient of the groove of the leveling disc;
the tobacco quantity of the middle section of the cigarette is calculated by the following formula:
wherein m is the tobacco shred amount in the middle section of the cigarette and the unit g; m is 1 The weight of the cigarette is preset and is unit g; m is 2 Average cigarette accessory weight in g; v, v 1 、v 2 The volume of the middle section of the cigarette, the volume of the tight end of the lighting end and the volume of the tight end of the connecting mouth end which have the same density of the tight end and the middle section of the cigarette are respectively expressed in mm 3 。
5. The method for predicting cigarette hardness according to claim 4, wherein the cigarette radial sag depth is calculated according to the following formula:
wherein deep is the cigarette radial lower limit depth in unit mm when the cigarette hardness is measured; f is the tobacco filling value in cm 3 (iv) g; m is the amount of the tobacco shreds in the middle section of the cigarette in unit g; v is the volume of the middle section of the cigarette in mm 3 (ii) a d is the diameter of the cigarette in mm.
6. The method for predicting cigarette hardness according to claim 5, wherein the cigarette hardness dd is calculated by the following formula:
dd＝(d-deep)/d×100％
wherein dd is the cigarette hardness, deep is the radial sinking depth of the cigarette when measuring the cigarette hardness, and the unit is mm, and d is the diameter of the cigarette, and the unit is mm.
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