A method for evaluating the quality of a cigarette tight-end rolling
By establishing evaluation criteria for the cigarette tip density index and offset, and combining this with density testing, a systematic evaluation of the cigarette tip quality was achieved. This solves the problem of the lack of evaluation methods in existing technologies and improves the consistency of cigarette quality and consumer experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA TOBACCO HENAN IND CO LTD
- Filing Date
- 2023-07-04
- Publication Date
- 2026-05-19
AI Technical Summary
The lack of an effective evaluation method for the quality of cigarette rolling heads in existing technologies affects the consistency of cigarette quality and the consumer smoking experience.
By determining the quality evaluation indicators for cigarette tip tightness (tightness density index and tightness deviation) and setting corresponding evaluation standards, the density is measured using a cigarette density detector, and the tightness density index and deviation are calculated to conduct quality evaluation.
It provides a systematic quality evaluation method to ensure the consistency of cigarette tip quality and improve the lean processing and product quality level of cigarette production.
Smart Images
Figure CN116636638B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cigarette manufacturing technology, and in particular to a method for evaluating the quality of cigarette cigarette rolling tips. Background Technology
[0002] As cigarette prices rise, consumers are paying more attention to the sensory quality of cigarettes, demanding more meticulous quality control during production. During cigarette manufacturing, the gap in the leveling device determines whether the cigarette's tightening tip is centered. If the tightening tip is misaligned, it affects the difference in individual puffs within the cigarette, as well as the draw resistance and tar content between cigarettes. The quality of the cigarette tightening tip during processing also influences cigarette consumption and the removal of empty tips, significantly impacting both the consumer's smoking experience and the production process. Currently, there is no method for evaluating the quality of the cigarette's tightening tip.
[0003] Therefore, there is an urgent need for a method to evaluate the quality of the cigarette rolling head. Summary of the Invention
[0004] The purpose of this invention is to provide a method for evaluating the quality of cigarette rolling heads, in order to solve the problems in the prior art, and to effectively evaluate the quality of cigarette rolling heads, thus providing a better quality evaluation method for ensuring the consistency of cigarette quality.
[0005] This invention provides a method for evaluating the quality of the cigarette rolling head, comprising:
[0006] Determine the quality evaluation indicators for cigarette tip tightening, which include the tip tightening density index and tip tightening deviation.
[0007] Determine the evaluation criteria for each of the aforementioned cigarette tip quality evaluation indicators;
[0008] The density at multiple points on the cigarette is detected, and the tightness index is calculated based on the density detection results at each point.
[0009] The offset of the tightening head is calculated based on the measured length and the theoretical length of the tightening head.
[0010] The quality of the cigarette rolling heads is evaluated based on the calculation results of each of the cigarette head quality evaluation indicators and the evaluation standards corresponding to each of the cigarette head quality evaluation indicators.
[0011] In the cigarette rolling tightness quality evaluation method described above, preferably, the tightness density index is used to characterize the ratio of the actual density of the tightness portion of the cigarette to the average density of the cigarette; the tightness offset is used to characterize the proportion of the deviation length of the tightness portion of the cigarette caused by the offset of the cutting position to the theoretical length of the tightness.
[0012] In the cigarette rolling tightness quality evaluation method described above, preferably, the evaluation criteria for each of the cigarette tightness quality evaluation indicators are as follows: the evaluation criteria for the tightness density index is within the range of 1.10 to 1.21; and the evaluation criteria for the tightness offset is less than or equal to 33%.
[0013] The method for evaluating the tightness quality of cigarette rolling as described above, preferably, involves detecting the density at multiple points on the cigarette and calculating the tightness density index based on the density detection results at each point, specifically including:
[0014] The density of multiple points on the cigarette is detected by a cigarette density detector, and the tightness index is calculated based on the density detection results of each point.
[0015] The method for evaluating the tightness quality of cigarette rolling as described above, preferably, involves detecting the density at multiple points on the cigarette using a cigarette density detector and calculating the tightness density index based on the density detection results at each point, specifically including:
[0016] The cigarette density detector measures the density at multiple points on the cigarette and derives the density value of the cigarette tip and the average density value of the cigarette based on the density measurement results of each point. The density value of the cigarette tip represents the average density of the detection points corresponding to the cigarette tip, and the average density value of the cigarette represents the evaluation density of all detection points corresponding to the entire cigarette.
[0017] The density index of the tight tip of the cigarette is calculated using the following formula based on the density value of the tight tip portion and the average density value of the cigarette:
[0018]
[0019] Where: D represents the tightness density index, D r Indicates the density value of the tight tip of the cigarette; D t This represents the average density value of cigarettes.
[0020] The method for evaluating the quality of the cigarette rolling tip as described above, preferably, involves calculating the tip offset based on the measured tip length and the theoretical tip length, specifically including:
[0021] The theoretical length of the tightening head is determined based on the design arc length of the splitting disc, and the theoretical length of the tightening head is consistent with the design arc length of the splitting disc;
[0022] Based on the density test results at multiple points on the tight end of the cigarette, the inflection point of the cigarette density is determined;
[0023] The length from the left end of the cigarette's tight tip to the inflection point of the cigarette's density is measured to obtain the tight tip detection length;
[0024] The tightening head offset is calculated using the following formula based on the tightening head detection length and the tightening head theoretical length:
[0025]
[0026] Where JD represents the tight head offset, L r L indicates the tightness detection length. t This indicates the theoretical length of the tight end.
[0027] The method for evaluating the quality of the cigarette rolling tip as described above, preferably, involves determining the inflection point of the cigarette density based on density detection results at multiple points in the cigarette rolling tip, specifically including:
[0028] The detection point where the detection density is higher than the average density of cigarettes is taken as the inflection point of cigarette density.
[0029] The method for evaluating the quality of cigarette rolling tips as described above, preferably, involves evaluating the quality of cigarette rolling tips based on the calculation results of each of the cigarette rolling tip quality evaluation indicators and the evaluation standards corresponding to each of the cigarette rolling tip quality evaluation indicators, specifically including:
[0030] If the calculation results of each of the above-mentioned cigarette tip quality evaluation indicators all fall within the corresponding evaluation standard range, then the evaluation result of the cigarette tip quality is qualified.
[0031] If the calculation result of at least one of the cigarette rolling head quality evaluation indicators does not fall within the corresponding evaluation standard range, the evaluation result of the cigarette rolling head quality is unqualified.
[0032] This invention provides a method for evaluating the quality of cigarette cigarette rolling heads. The method identifies the head density index and head offset as the evaluation indicators for each head quality indicator; it also determines the evaluation standards for each head quality indicator; calculates each head quality indicator separately; and evaluates the quality of cigarette rolling heads based on the calculation results and corresponding evaluation standards. By establishing a method for detecting and evaluating the quality of cigarette cigarette heads, this invention provides guidance and theoretical support for cigarette manufacturers in selecting leveling instruments, designing head sizes for different specifications, and determining head quality. It offers a better quality evaluation method for ensuring consistent cigarette quality, promotes high-quality development of cigarette paper manufacturing enterprises, and is of paramount importance for improving lean processing and overall cigarette quality in the industry. Attached Figure Description
[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described below with reference to the accompanying drawings, wherein:
[0034] Figure 1 A flowchart illustrating an embodiment of the cigarette rolling tension quality evaluation method provided by the present invention;
[0035] Figure 2 A schematic diagram showing the density values corresponding to each detection point for each cigarette;
[0036] Figure 3 The density curves at each detection point corresponding to each point along the length of the cigarette when the leveling groove depth is 1.5 mm.
[0037] Figure 4 The density curves at each detection point corresponding to each point along the length of the cigarette when the leveling groove depth is 2.0 mm. Detailed Implementation
[0038] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values set forth in these embodiments should be interpreted as exemplary only and not as limiting.
[0039] The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as “including” or “contains” mean that the element preceding the term encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as “above” and “below” are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.
[0040] In this disclosure, when a specific component is described as being located between a first component and a second component, an intermediary component may or may not be present between the specific component and the first or second component. When a specific component is described as connecting to other components, the specific component may be directly connected to the other components without having an intermediary component, or it may not be directly connected to the other components but may have an intermediary component.
[0041] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.
[0042] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.
[0043] like Figure 1 As shown, the cigarette rolling tightness quality evaluation method provided in this embodiment specifically includes the following in actual implementation:
[0044] Step S1: Determine the quality evaluation index of cigarette tip tightening, which includes the tip tightening density index and tip tightening offset.
[0045] This invention controls cigarette quality by controlling the quality of the cigarette tip, which is the root cause of instability in other cigarette quality indicators. Specifically, the tip density index characterizes the ratio of the actual density of the cigarette tip to the average density of the cigarette; the tip offset characterizes the proportion of the deviation length of the cigarette tip caused by the offset in the cutting position relative to the theoretical length of the tip.
[0046] Step S2: Determine the evaluation criteria for the quality evaluation indicators of each cigarette tip.
[0047] Specifically, the evaluation standard for the head density index is within the range of 1.10 to 1.21; the evaluation standard for the head offset is less than or equal to 33%. Cigarettes outside this range are substandard, mainly manifested as high end burnt tobacco exceeding the design standard, making them unqualified products. In addition, consumers will experience inconsistent draw resistance during smoking, and the sensory quality will be unstable.
[0048] Step S3: Detect the density at multiple points on the cigarette and calculate the tightness index based on the density detection results of each point.
[0049] In step S3, the quality of the cigarette's tightness is determined by the magnitude of its longitudinal density. Specifically, a cigarette density detector is used to measure the density at multiple points on the cigarette, and the tightness density index is calculated based on the density measurement results at each point. The cigarette density detector uses microwave resonance technology to detect the tightness of the cigarette. When a cigarette with a certain density enters a microwave electromagnetic field, it will cause changes in the energy parameters of the microwave electromagnetic field (such as frequency and amplitude). The higher the cigarette density, the lower the resonant frequency and the wider the amplitude.
[0050] In one embodiment of the cigarette rolling tightening quality evaluation method of the present invention, step S3 may specifically include:
[0051] Step S31: The cigarette density detector detects the density at multiple points on the cigarette and derives the density value of the cigarette tip and the average density value of the cigarette based on the density detection results of each point. The density value of the cigarette tip represents the average density of the detection points corresponding to the cigarette tip, and the average density value of the cigarette represents the evaluation density of all detection points corresponding to the entire cigarette.
[0052] Figure 2 The density values corresponding to each detection point for each cigarette are shown. Figure 2 In the diagram, the first row represents the cigarette serial number, and the first column represents the detection point serial number. The second row and second column represent the density value corresponding to the first detection point of the first cigarette, and so on.
[0053] Step S32: Calculate the tightness density index based on the density value of the cigarette tip and the average density value of the cigarette using the following formula:
[0054]
[0055] Where: D represents the tightness density index, D r Indicates the density value of the tight tip of the cigarette; D t This represents the average density value of cigarettes.
[0056] Step S4: Calculate the tight head offset based on the tight head detection length and the tight head theoretical length.
[0057] In one embodiment of the cigarette rolling tightening quality evaluation method of the present invention, step S4 may specifically include:
[0058] Step S41: Determine the theoretical length of the tightening head based on the design arc length of the splitting disc. The theoretical length of the tightening head is consistent with the design arc length of the splitting disc.
[0059] Step S42: Determine the inflection point of the cigarette density based on the density detection results of multiple points on the tight end of the cigarette.
[0060] Specifically, the detection point where the detection density is higher than the average density value of cigarettes is taken as the inflection point of cigarette density.
[0061] Step S43: Measure the length from the left end of the cigarette tip to the inflection point of the cigarette density to obtain the tip detection length.
[0062] Step S44: Calculate the tightening head offset using the following formula based on the tightening head detection length and the tightening head theoretical length:
[0063]
[0064] Where JD represents the tight head offset, L r L indicates the tightness detection length. t This indicates the theoretical length of the tight end.
[0065] Step S5: Evaluate the quality of the cigarette rolling head based on the calculation results of each cigarette head quality evaluation index and the evaluation standards corresponding to each cigarette head quality evaluation index.
[0066] In one embodiment of the cigarette rolling tightening quality evaluation method of the present invention, step S5 may specifically include:
[0067] Step S51: If the calculation results of each of the cigarette tip quality evaluation indicators fall within the corresponding evaluation standard range, then the evaluation result of the cigarette tip rolling quality is qualified.
[0068] Step S52: If the calculation result of at least one of the cigarette rolling head quality evaluation indicators does not fall within the corresponding evaluation standard range, the evaluation result of the cigarette rolling head quality is unqualified.
[0069] As mentioned above, the evaluation criteria for the tightness density index is within the range of 1.10 to 1.21; the evaluation criteria for the tightness offset is less than or equal to 33%. Figure 3 and Figure 4 These figures represent the density curves at various detection points along the length of the cigarette when the leveling groove depth is 1.5 mm and 2.0 mm, respectively. Figure 3 and Figure 4 In the diagram, the horizontal axis represents the detection point corresponding to the length of the cigarette, and the vertical axis represents the density value at the corresponding cigarette detection point. Figure 3In the test, when the offset is 0% (falling within the range of less than or equal to 33%), the density index of the cigarette is 1.10 (falling within the range of 1.10 to 1.21), and the cigarette is qualified; when the offset is 33% (falling within the range of less than or equal to 33%), the density index of the cigarette is 0.96 (not falling within the range of 1.10 to 1.21), and the cigarette is unqualified; when the offset is 67% (not falling within the range of less than or equal to 33%), the density index of the cigarette is 0.93 (not falling within the range of 1.10 to 1.21), and the cigarette is unqualified, and the density index of this cigarette is significantly different from the density index of 1.10 corresponding to a normal offset of 0mm.
[0070] Figure 4 In the test, when the offset is 0% (falling within the range of less than or equal to 33%), the density index of the cigarette is 1.20 (falling within the range of 1.10 to 1.21), and the cigarette is qualified; when the offset is 33% (falling within the range of less than or equal to 33%), the density index of the cigarette is 1.20 (falling within the range of 1.10 to 1.21), and the cigarette is qualified; when the offset is 67% (not falling within the range of less than or equal to 33%), the density index of the cigarette is 0.92 (not falling within the range of 1.10 to 1.21), and the cigarette is unqualified, and the density index of this cigarette is significantly different from the density index of 1.21 corresponding to a normal offset of 0mm. Figure 3 and Figure 4 The results show that the deeper the leveling groove, the greater the density index of the cigarette tip; the greater the offset of the cigarette tip, the smaller the density index of the cigarette tip. This indicates that the depth of the leveling groove affects the quality of the cigarette tip and the cigarette itself. When the evaluation result of the cigarette tip quality is unqualified, the quality of the cigarette tip can be improved by adjusting the depth of the leveling groove.
[0071] In some embodiments of the present invention, compared with a 6-slot leveler, a 3-slot leveler has a higher density at the tip and a lower density in the middle of the cigarette, and also has a higher standard deviation of single cigarette weight, standard deviation of suction resistance, tar content, and CO content. Therefore, as the depth of the leveler grooves increases, the density at the tip of the cigarette increases, the density in the middle decreases, the amount of end burns and hardness decreases, and the tar content and CO content increase.
[0072] Compared to a 3-groove leveler, a 6-groove leveler produces cigarettes with the best aroma penetration, smoothness, fineness, and sweetness, while minimizing impurities and irritation.
[0073] The cigarette rolling head quality evaluation method provided in this invention defines the cigarette rolling head quality evaluation indicators as the head density index and the head offset; determines the evaluation standards for each cigarette rolling head quality evaluation indicator; calculates each cigarette rolling head quality evaluation indicator separately; and evaluates the cigarette rolling head quality based on the calculation results of each cigarette rolling head quality evaluation indicator and the corresponding evaluation standards. By establishing a cigarette rolling head quality testing and evaluation method, this method provides guidance and theoretical support for cigarette manufacturers in selecting leveling instruments, designing cigarette rolling heads of different specifications, and determining cigarette rolling head quality. It provides a better quality evaluation method for ensuring consistent cigarette quality, promotes high-quality development of cigarette paper manufacturing enterprises, and is of paramount importance for improving lean processing and cigarette quality in the industry.
[0074] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.
[0075] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.
Claims
1. A method for evaluating the quality of the cigarette rolling head, characterized in that, include: Determine the quality evaluation indicators for cigarette tip tightening, which include the tip tightening density index and tip tightening deviation. Determine the evaluation criteria for each of the aforementioned cigarette tip quality evaluation indicators; The density of multiple points on the cigarette is detected by a cigarette density detector, and the tightness index is calculated based on the density detection results of each point. The offset of the tightening head is calculated based on the measured length and the theoretical length of the tightening head. The quality of the cigarette rolling heads is evaluated based on the calculation results of each of the aforementioned cigarette head quality evaluation indicators and the corresponding evaluation standards. The process of detecting the density at multiple points on a cigarette using a cigarette density detector and calculating the tightness index based on the density detection results at each point specifically includes: The cigarette density detector measures the density at multiple points on the cigarette and derives the density value of the cigarette tip and the average density value of the cigarette based on the density measurement results of each point. The density value of the cigarette tip represents the average density of the detection points corresponding to the cigarette tip, and the average density value of the cigarette represents the evaluation density of all detection points corresponding to the entire cigarette. The density index of the tight tip of the cigarette is calculated using the following formula based on the density value of the tight tip portion and the average density value of the cigarette: （1） in: Indicates the density index of the tight end. This indicates the density value of the tight end of the cigarette. This represents the average density value of cigarettes. The calculation of the tightening head offset based on the tightening head detection length and the tightening head theoretical length specifically includes: The theoretical length of the tightening head is determined based on the design arc length of the splitting disc, and the theoretical length of the tightening head is consistent with the design arc length of the splitting disc; Based on the density test results at multiple points on the tight end of the cigarette, the inflection point of the cigarette density is determined; The length from the left end of the cigarette's tight tip to the inflection point of the cigarette's density is measured to obtain the tight tip detection length; The tightening head offset is calculated using the following formula based on the tightening head detection length and the tightening head theoretical length: （2） in, Indicates the tightness offset. Indicates the tight end detection length. This indicates the theoretical length of the tight end.
2. The method for evaluating the quality of cigarette rolling tips according to claim 1, characterized in that, The tightness density index is used to characterize the ratio of the actual density of the tightness portion of the cigarette to the average density of the cigarette; the tightness offset is used to characterize the proportion of the deviation length of the tightness portion of the cigarette caused by the offset of the cutting position to the theoretical length of the tightness portion.
3. The method for evaluating the quality of cigarette rolling tension according to claim 1, characterized in that, The evaluation criteria for each of the cigarette tip quality evaluation indicators are as follows: the evaluation criteria for the tip density index is within the range of 1.10 to 1.21; the evaluation criteria for the tip offset is less than or equal to 33%.
4. The method for evaluating the quality of cigarette rolling tension according to claim 1, characterized in that, The determination of the inflection point of cigarette density based on density detection results at multiple points on the tight end of the cigarette specifically includes: The detection point where the detection density is higher than the average density of cigarettes is taken as the inflection point of cigarette density.
5. The method for evaluating the quality of cigarette rolling tension according to claim 1, characterized in that, The evaluation of the cigarette rolling head quality based on the calculation results of each of the cigarette head quality evaluation indicators and the corresponding evaluation standards includes: If the calculation results of each of the above-mentioned cigarette tip quality evaluation indicators all fall within the corresponding evaluation standard range, then the evaluation result of the cigarette tip quality is qualified. If the calculation result of at least one of the cigarette rolling head quality evaluation indicators does not fall within the corresponding evaluation standard range, the evaluation result of the cigarette rolling head quality is unqualified.