CN113996547A - Flexible sorting method based on individual demands of consumers - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/04—Sorting according to size
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to a flexible sorting method based on individual demands of consumers, in particular to a sorting order splitting system based on the introduction of special-shaped cigarette specifications and optimization in different periods. When the working day is spring festival and other heavy major holidays, a product specification optimization method based on the product similarity coefficient is introduced, the number of the special-shaped tobacco products is reduced from 206 to 103 after the product specification optimization method is introduced, the simulation of the sorting efficiency before and after the special-shaped tobacco product specification optimization is carried out, and the sorting efficiency of the special-shaped tobacco products is improved by 33.7%; when the sorting efficiency requirement of the special-shaped cigarettes is less than 1 ten thousand per hour, fine-label integrated sorting is adopted; when the sorting efficiency requirement of the special-shaped cigarettes reaches 1 ten thousand pieces/h, an elastic special-shaped cigarette sorting mechanism is started, sorting lines and sorting personnel construct an F sorting line in busy seasons, the flexibility index is 3600-12000 pieces/h, the distribution response time T +1 is ensured, two enterprise standards are formed, and the combined special-shaped sorting system is higher than the industrial standard.
Description
Technical Field
The invention relates to a logistics method, in particular to a method for adjusting distribution according to market behavior habits.
Background
According to big data analysis, the Chengdu tobacco marketing center analyzes that the special-shaped cigarette sales percentage of the Chengdu market in 2018 is more than 15%, the special-shaped cigarette sales percentage is increased by 4.5% in 2017, even if the sales amount of the Chengdu tobacco marketing center in 2018 is not considered to be increased integrally, the sales amount of the Chengdu tobacco marketing center in 2017 is only used for measurement and calculation, and the sorting amount of the special-shaped cigarette in Yuanchun in 2018 per day can reach 115498. The sorting efficiency of the 6246 cigarette/hour sorting equipment according to the Chengdu logistics is estimated to be 18.49 hours per day, however, after the time for processing orders, handing over to work and checking, having a meal and having a rest and the like is removed, the time for sorting of the Chengdu logistics is only 18.5 hours at most every day. According to the special-shaped cigarette quantity ratio calculation predicted by the marketing center, the special-shaped cigarette sorting efficiency of 6246 cigarettes/hour can cause cigarette distribution delay, the delivery time can be increased from T +1 to T +3, the overall efficiency of a supply chain is sharply reduced, and repeated line delivery caused by the distribution delay is also wasted on manpower arrangement and vehicle use.
After the tobacco is produced from a cigarette production plant, the tobacco is distributed to the market and then to consumers, and the tobacco undergoes a logistics sorting process in the middle. The sorting process specifically comprises the following steps: the cigarettes (strip packaged tobacco) in the storeroom are distributed according to the order quantity of each point of sale, the order quantity and the type of the current cigarettes at each point of sale are packaged by plastic films, and then the packaged cigarettes are conveyed to the point of sale by a delivery person.
The cigarette carton distribution of the warehouse has realized mechanized production, the computer controls the distribution process, the cigarette carton is taken out from the packing box and then stacked in the vertical distributor, the vertical distributor is provided with a plurality of cigarette carton bins, the vertical distributor starts the corresponding cigarette carton bin according to the order quantity and the type of the current cigarette carton at each point of sale, the cigarette carton in the cigarette carton bin is selected and falls on the conveyer belt, a plurality of cigarette cartons with different types and numbers belonging to the same point of sale are selected from the cigarette carton bins at one time and fall on the conveyer belt, the conveyer belt conveys the cigarette carton in the group to the packing point for packing, and the packed cigarette cartons are uniformly distributed to the point of sale.
But this packaging process is not suitable for profile cigarette packaging. The special-shaped cigarettes are cigarettes with special-shaped packaging specifications, when the length of each cigarette is 84mm, 20 cigarettes are packaged in each small packet, the cigarettes with hard or soft outer packages belong to normal packaged cigarettes, and if the cigarette is different from the normal packaged cigarettes, the cigarettes belong to special-shaped packaged cigarettes. The special-shaped cigarette has the advantages that the cigarette shred loading amount is small, the tobacco tar filtering effect is better, the package is novel, small and exquisite, the individuality difference is realized, more smokers can accept the special-shaped cigarette, and more smokers can select the special-shaped cigarette. The packing box shapes of the special-shaped cigarettes are not uniform, so that the difference of the appearance sizes of the special-shaped cigarette sticks is very large, the special-shaped cigarette sticks of certain brands are flat, and the special-shaped cigarette sticks of certain brands are square. Because the cigarette carton forms are different, the existing logistics sorting line cannot be well compatible with the sorting of special-shaped cigarettes. When the market has a large demand for the special-shaped cigarettes, even if the maximum sorting capacity of the sorting assembly line is adopted, the sorting capacity of the whole sorting assembly line is slowed down due to the low efficiency of sorting of the special-shaped cigarettes.
At ordinary times, because the cigarette needs quantity moderate, the equipment configuration and the personnel configuration of commodity circulation letter sorting satisfy basic letter sorting ability, and the influence of the quantity of abnormal shape cigarette to whole letter sorting line is not prominent, however, has arrived the commodity circulation peak period, need sort a large amount of strip cigarettes, and letter sorting abnormal shape cigarette will produce great influence to whole letter sorting line, makes the unable complete letter sorting quantity task of letter sorting assembly line, probably causes the market to lack of goods.
Disclosure of Invention
In order to solve the problem, the invention provides a flexible sorting mode based on the individual demands of consumers, which flexibly puts the special-shaped cigarettes which are put on the market and influence the sorting efficiency on the market according to the sorting capacity in the peak period and the demands so as to avoid influencing the overall sorting quantity task.
The invention relates to a flexible sorting method based on individual demands of consumers, which comprises the following steps,
(1) setting standard cigarette packing specifications according to the packing size, and comparing the standard cigarette packing specifications, wherein the length of the cigarette is more than the length of 6.38 percent of the standard cigarette packing specification, the width of the cigarette is more than the width of 17.51 percent of the standard cigarette packing specification, the height of the cigarette is less than 46.24 percent of the standard cigarette packing specification, and the cigarette which is not included in the standard cigarette is divided into normal distribution cigarettes;
and a control dispensing cigarette that is not included in the normal dispensing cigarette;
(2) normally putting the normal distribution cigarettes on the market;
(3) and putting the control distribution cigarette into the market in the following way: the method comprises the following steps:
s1, calculating the sorting amount for controlling the distribution of the distribution cigarette in the peak period, and adopting the following formula:
b is M-A100%, wherein M is the maximum sorting capacity of the sorting assembly line, and A is the maximum sorting capacity of the sorting assembly line for normal distribution cigarettes; b is the sorting amount for controlling the distribution of the cigarette in the peak period;
s2, controlling the distribution of the cargo smoke to each subdivision time belonging to the annual off-peak time according to the annual demand, and adopting a calculation mode DX (DX is N/D) and: d is 365-D2,
in the above formula, D is each subdivision time; DX is in each subdivision time; controlling the distribution amount obtained by the distribution cigarette; d2 is peak hours, N controlling annual demand for cigarette distribution.
The flexible sorting mode based on the individual demands of the consumers is further described as the length of the normal distribution cigarette package specification is 270-292mm, the width is 88-104mm, and the height is 25-45 mm.
The flexible sorting mode based on the individual demands of the consumers as described above is further characterized in that the normal distribution cigarettes are adapted to the sorting line to complete at least 15000 pieces of sorting quantity per hour, and the distribution cigarettes are controlled to be adapted to the sorting line to complete at most 3500 pieces of sorting quantity per hour.
The flexible sorting method based on the personalized demands of the consumers as described above further includes the following steps: according to the early-stage accumulated data, the annual demand information for controlling the distribution of the cigarettes is obtained in advance, and the obtaining method comprises the following steps: adding the increment to the total data for controlling the last year of the cigarette in distribution;
the number of the increase is as follows: the total amount of data for last year of cigarette distribution was controlled.
The flexible sorting pattern based on the individual demands of the consumers as described above, further described, the duration of the peak hours is accumulated from historical empirical data; the method specifically comprises the following steps: the specific term of spring festival is added 30 days before the holiday of spring festival in the Chinese lunar calendar.
The flexible sorting pattern based on the customer's personalized needs as described above, further stated, the maximum sorting capacity of normal cigarettes is a historical empirical data accumulation.
Has the advantages that:
based on historical big data analysis, the method flexibly puts the special-shaped cigarettes which are put on the market and affect the sorting efficiency on the basis of the sorting capacity in the peak period on the market according to the requirement, and ensures that the overall sorting quantity task of the sorting line is smoothly completed.
Drawings
Fig. 1 is a schematic flow chart of the sorting method of the invention.
Fig. 2 is a comparison table of sorting efficiency of the present invention.
Detailed Description
In the embodiment, the cigarette is firstly classified into a type A normal cigarette, namely a conventional cigarette, and an abnormal cigarette is a type B special cigarette.
Example one:
according to the concept of item similarity coefficient, and by expressing the similarity coefficient between two items by the sum of the number of times that two items appear in the same order at the same time, as shown in the formula. The greater the similarity coefficient of two items, the more they should be allocated to two different sorting zones, whereas they may be allocated to the same sorting zone. In the research, the standard specification optimization only aims at the special-shaped cigarette brand, so that the special-shaped cigarette specification with low similarity coefficient with the standard cigarette brand item is selected for optimization. According to the similarity coefficient of the defective product rule, the important factors of the relationship between the cigarette sales volume and the cigarettes in the order are comprehensively considered, so that the defective product rule is optimized more scientifically and accurately. When the clustering is carried out, firstly, the special-shaped cigarette gauge with the highest coefficient of standard cigarette item is selected, and secondly, the special-shaped cigarette with the high coefficient of similarity to the just selected special-shaped cigarette gauge item is selected. The clustering part table (for example, cloud smoke) after clustering is shown as follows:
similarity coefficient table (part) for cloud and special-shaped cigarette items
| Article gauge A | Product gauge B | Item similarity coefficient |
| Cloud cigarette (Soft treasure) | Diamond (ramuscule lotus) | 11675 |
| China (full open type) | 4968 | |
| 。。。 | 。。。 | 。。。 |
| Harbin (Longyanjin' an) | 2977 | |
| Diamond (fashion) |
And screening out the special-shaped cigarette gauge in the gauge B with low item similarity coefficient according to the clustered standard cigarette and special-shaped cigarette item similarity coefficient table, and performing subsequent gauge optimization.
Flexsim-based flexible lifting simulation verification of the special-shaped cigarette sorting system is implemented by comparing sorting efficiency before and after optimization of a special-shaped cigarette gauge by using Flexsim software, the special-shaped cigarette sorting system only adopts flexible sorting strategies of 'fine-scale' collineation and 'micro' sorting lines before optimization of the cigarette gauge, 20 cigarette orders are set, 206 special-shaped cigarette gauges are set before optimization, and the model running time is set to 1 hour. A table like that of figure 2 is obtained. The first 103 special cigarettes are the ones with similar coefficient and high demand to the standard cigarettes, and the last 103 cigarettes are the ones needing workers to take the cigarettes from the buffer and manually put them on the sorting conveyer belt. In order to verify the influence of the cigarette product specification concentration on sorting flexibility, a series of research simulation works are carried out under ideal conditions, namely under the condition that the number of cigarettes in each order is close.
The optimized product gauge in the project is the special-shaped cigarette gauge with the number of the last 103 types reduced, and because the number of the special-shaped cigarette orders is very small but the number of the product gauge is huge, workers have to frequently go to and fro two areas of cache region cigarette taking and sorting line monitoring during the sorting peak period, the sorting efficiency is not high, and therefore, the simulation analysis is influenced by the product gauge optimization in the project.
It can be seen from this that:
in the same sorting working time, due to the fact that 103 product gauges are stopped, the order sorting efficiency is as high as 278 single/hour, the sorting efficiency is improved by about 33.7%, and about 366 boxes of special-shaped cigarettes are sorted more every day. The simulation result clearly verifies that the cigarette product gauge optimization can effectively improve the sorting efficiency in the sorting peak period. According to daily sorting quantity data of the special-shaped cigarettes before and after 2020 spring festival given by the Chengni-Chengni marketing center, after the product specification optimization work is carried out on the special-shaped cigarette sorting system, the whole special-shaped cigarette sorting system sorts more than 400 boxes every day, the simulation result is similar to the actual sorting condition, and the sorting efficiency is greatly improved. Therefore, the conclusion that the special-shaped cigarette gauge can be optimized to effectively improve the sorting efficiency and flexibility of the sorting system can be obtained.
Example two:
referring to fig. 1: the combined special-shaped sorting system is used for clustering cigarettes with the special-shaped cigarette outer package specifications of length (280-292 mm) multiplied by width (89-104 mm) multiplied by height (25-29 mm) to define the cigarettes as 'standard fine cigarette', according to the product specification structure of 'standard fine cigarette', sorting line equipment is redesigned and manufactured, and the 'micro' sorting line is only opened when the sorting amount of the special-shaped cigarettes per day is more than 10000, so that energy consumption waste is avoided; sorting personnel are drawn and dispatched from other sorting lines, F line team members can return to the original sorting line position to work when the miniature sorting line is not started, personnel waste is avoided, an elastic special-shaped cigarette sorting mechanism is formed under a combined special-shaped sorting model, the flexibility of a special-shaped cigarette sorting system is improved, the sorting quantity is 3600-12000 cigarettes/hour, and the distribution response time is guaranteed and is T + 1. The special-shaped cigarette sorting order splitting system is used for splitting orders, and the special-shaped cigarette sorting task can be basically met by realizing the collinear sorting work of thin labels; but when the sorting requirement for the special-shaped cigarettes is more than 1 ten thousand pieces/h, sorting personnel can establish and start a 'micro' sorting line.
After the implementation of the example, the delivery time of the single delivery group is saved by about 48 hours, if the flexible sorting mode is not successfully established, the sorting time of the abnormal cigarettes with 12 days is more than 20 hours, and the cigarettes with 1800 boxes need to be delivered for the second time. 6236 pieces of/hour of total sorting efficiency + F line sorting efficiency 3461 pieces/hour become heterotypic cigarette and sort total efficiency 9698 pieces/hour, production efficiency further promotes, and the letter sorting time is according to working 9 hours a day, and limit condition is according to 18 hours calculation, and heterotypic cigarette sorting efficiency promotes to 12000 pieces/hour.
Example three:
referring to fig. 1: setting standard cigarette packing specifications according to the packing size, and comparing the standard cigarette packing specifications, wherein the length of the cigarette is more than the length of 6.38 percent of the standard cigarette packing specification, the width of the cigarette is more than the width of 17.51 percent of the standard cigarette packing specification, the height of the cigarette is less than the height of 46.24 percent of the standard cigarette packing specification, and the cigarette which is not included in the standard cigarette is divided into normal distribution cigarettes; the normal distribution cigarette packaging specification is 270-292mm in length, 88-104mm in width and 25-45mm in height.
According to the existing sorting capacity, normal distribution cigarettes are on a production line to achieve a sorting capacity of at least 15000 cigarettes per hour, while normal distribution cigarettes (special-shaped cigarettes) can only achieve a sorting capacity of less than 3000 cigarettes per hour. Typically 2500-. The maximum sorting capacity for normal cigarette loads is the accumulation of historical empirical data.
In the embodiment, the normal distribution cigarettes are normally put on the market, that is, the distribution sorting is performed according to the market capacity or the demand for satisfying the normal distribution cigarettes.
The control distribution cigarette is flexibly supplied to the market, and the distribution quantity is distributed in the following mode:
1. calculating the sorting amount for controlling the distribution of the distribution cigarettes in the peak period, and adopting the following formula:
b is M-A100%, wherein M is the maximum sorting capacity of the sorting assembly line, and A is the maximum sorting capacity of the sorting assembly line for normal distribution cigarettes; and B is the sorting amount for controlling the distribution of the cigarette in the peak period.
For example, the maximum sorting capacity of a line (regular line + profile-compatible line) is 50000 pieces per hour, where the normal cigarette demand is 45000 pieces, and the sorting task that controls the amount of sorting dispensed during peak periods is: 50000-.
The number of cigarettes sorted in the whole day was calculated to be 5000 × 24 — 1.2 ten thousand. Therefore, during peak periods, the special-shaped cigarettes can make up to 1.2 ten thousand sorting tasks per day.
However, in order not to affect the annual sorting task of the profile cigarettes, it is necessary to allocate the undersorted cigarettes to other periods, the off-peak periods. The allocation is as follows:
controlling the distribution of the cargo cigarette to each subdivision time belonging to the annual off-peak time according to the annual demand, and adopting a calculation mode DX (DX is N/D), and further: D-365-D2
In the above formula, D is each subdivision time; DX is in each subdivision time; controlling the distribution amount obtained by the distribution cigarette; d2N controls the annual demand for cigarette distribution for peak hours.
For example, the year-round control distribution cigarette demand N is 300 ten thousand, the holiday of the spring festival of the year is 10 days, and the market is scheduled to be in a peak period 30 days before the spring festival according to past historical experience data, so the peak period D is2The total amount is 30+ 10-40 days. Thus, off-peak periods are 365 (years) -40 ═ 325 days.
The sorting quantity of the control distribution cigarettes sorted every day is as follows: 300 ten thousand/325-9230 strips.
The profile cigarettes required throughout the year are thus distributed approximately evenly to the off-peak hours as a whole, while at peak hours profile cigarettes are sorted as far as possible only if the maximum sorting capacity of normal distribution cigarettes is met.
In the above example, the total year control distribution cigarette demand N is 300 ten thousand, and the obtained method is: adding the increase number to the total data for controlling the last year of the cigarette in distribution. For example, in 2019, the cigarette distribution demand is controlled to 240 ten thousand. The increment is 1.25, so that the cigarette distribution control demand N of this year is calculated to be 300 ten thousand.
The number of the increase is as follows: the total amount of data for last year of cigarette distribution was controlled.
The invention considers that the cigarette is divided into standard cigarette of A type and special-shaped cigarette of c type, because the special-shaped cigarette is irregular, the sorting automation degree is lower, when the sorting system of the whole logistics center is designed, the sorting efficiency of the cigarette is up to 70% of the whole configuration (plan) capacity, but because the special-shaped cigarette of c type is added, the sorting efficiency of the whole production line is reduced to below 60%, so the sorting efficiency can not meet the requirement.
Therefore, the standard cigarette in the A class is sorted to the highest degree, the cigarette can best meet the requirements of consumers, the special-shaped cigarettes are reduced, and the sorting efficiency is achieved.
In the two embodiments of the invention, when the working day is a spring festival or other major holiday, the product specification optimization method is introduced, and the sorting efficiency is improved. The miniature sorting line is only opened when the sorting quantity of the special-shaped cigarettes is more than 10000 every day, so that energy consumption waste is avoided; sorting personnel all draw the accent from other letter sorting lines, and F line team member can resume the work of letter sorting line post when not starting "miniature" letter sorting line, can not cause personnel extravagant.
The foregoing is illustrative of the present invention and does not represent the scope of the invention.
Claims (6)
1. The flexible sorting method based on the individual demands of consumers is characterized by comprising the following steps,
(1) setting standard cigarette packing specifications according to the packing size, and comparing the standard cigarette packing specifications, wherein the length of the cigarette is more than the length of 6.38 percent of the standard cigarette packing specification, the width of the cigarette is more than the width of 17.51 percent of the standard cigarette packing specification, the height of the cigarette is less than 46.24 percent of the standard cigarette packing specification, and the cigarette which is not included in the standard cigarette is divided into normal distribution cigarettes; and a control dispensing cigarette that is not included in the normal dispensing cigarette;
(2) normally putting the normal distribution cigarettes on the market;
(3) and putting the control distribution cigarette into the market in the following way: the method comprises the following steps:
s1, calculating the sorting amount for controlling the distribution of the distribution cigarette in the peak period, and adopting the following formula:
b is M-A100%, wherein M is the maximum sorting capacity of the sorting assembly line, and A is the maximum sorting capacity of the sorting assembly line for normal distribution cigarettes; b is the sorting amount for controlling the distribution of the cigarette in the peak period;
s2, controlling the distribution of the cigarette to each subdivision time of the annual off-peak time according to the annual demandAdopting a calculation mode DX as N/D, and further: D-365-D2，
In the above formula, D is each subdivision time; DX is in each subdivision time; controlling the distribution amount obtained by the distribution cigarette; d2N controls the annual demand for cigarette distribution for peak hours.
2. The method as claimed in claim 1, wherein the normal distribution cigarette package size is 270-292mm long, 88-104mm wide and 25-45mm high.
3. The method as claimed in claim 1, wherein the normal distribution cigarettes are adapted to the sorting line to complete at least 15000 cigarettes per hour, and the distribution cigarettes are controlled to be adapted to the sorting line to complete at most 3500 cigarettes per hour.
4. The flexible sorting method based on customer personalized demand according to claim 1, characterized in that the steps further comprise: according to the early-stage accumulated data, the annual demand information for controlling the distribution of the cigarettes is obtained in advance, and the obtaining method comprises the following steps: adding the increment to the total data for controlling the last year of the cigarette in distribution;
the number of the increase is as follows: the total amount of data for last year of cigarette distribution was controlled.
5. The flexible sorting method based on individual demands of consumers according to claim 1, wherein the duration of the peak period is accumulated from historical empirical data; the method specifically comprises the following steps: the specific term of spring festival is added 30 days before the holiday of spring festival in the Chinese lunar calendar.
6. The flexible sorting method based on customer personalized demand according to claim 1, characterized in that the maximum sorting capacity of normal distribution cigarettes is historical empirical data accumulation.
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