Be applicable to the automated randomized racking machine of sample of multinomial Cigarette examining
Technical field
The present invention relates to the cigarette detection technique field of smokeing panel test, specifically a kind of automated randomized racking machine of sample that is applicable to multinomial Cigarette examining, the scheme of utilizing the present invention can realize sample preparation generates, the automation of cigarette coding, cigarette composition, encapsulation process.
Background technology
Smoke panel test in process at cigarette at present, mainly contain three-point assay, comparison test and sequence inspection.
1. three-point assay
As a kind of difference test method, three-point assay is in cigarette product development process, formula for a product adjustment and maintenance, and the aspect such as dairy products steady quality sex determination is widely used by industry.YC/T138-1998 " tobacco and tobacco product sensory evaluation method " standard has specified General Requirements, the method for inspection of tobacco and tobacco product sensory evaluation method, is applicable to the sensory evaluation in product design, exploitation and quality control surveillance process of tobacco and tobacco product.
This standard regulation: three-point assay is a kind of method of difference test, in order to determine between two kinds of products whether have nuance, difference can be that all features of product can be also a certain features.
The three-point assay rule of this standard dividing: provide check sample to the each personnel that participate in evaluation, sample is made up of three cigarettes of having encoded, wherein there are two to be identical (coming from identical product), require member of smoking to choose another cigarette different from these two by sensory evaluation.
Along with the raising of tobacco business cigarette brand concentration degree, cigarette brand license production model is more and more general, and enterprise, brand and the specification relating to is all more and more, therefore guarantees that the quality conformance between license production product is just particularly important.In YC/T198-2006 " cigarette brand license the quality of production ensure general rule ", explicitly call for " license both sides should be regularly or fitfull method that license is produced to product employing three-point assay carry out product design Conformance Assessment ".
At present, tobacco business adopts full manual mode to prepare the sample of three-point assay.Concrete preparation process is as follows: according to participating in inspector's number, determine required sample size (sample size is slightly larger than inspection number conventionally, unnecessary for for subsequent use).Formulate the required sample cigarette composition proposal of (each sample is made up of three cigarette, and two come from identical product, and other comes from another product); According to the cigarette composition proposal of each sample, from two kinds of products, extract three cigarette, and carry out respectively manual coding, conventionally with 1,2,3 or a, b, c mark; Pack in sample sack manual three cigarette after coding, and according to cigarette composition proposal, on sample sack, to this sample, the sequence number in all samples identifies.
There is following shortcoming in complete manual preparation method: sample composition scheme possibly cannot each sample of smokeing panel test in difference be random appearance with another cigarette of other two identical cigarettes; Carry out, in cigarette coding, combination, pack and mark sample sack sequence number process, easily producing mistake, and easily causing sample contamination according to sample composition scheme by hand; Many set products being carried out to three-point assay and inspector's quantity when many, manual sample preparation labor intensity is large, and efficiency is low.
For this situation, this case contriver once applied for and had authorized a kind of " for the automated randomized packaging device of sample of Cigarette examining in August, 2010, the patent No. is 201010267226.X, and the scheme of utilizing this device can realize sample preparation generates, cigarette is encoded, cigarette forms, the automation of encapsulation process.Its structure forms as shown in Figure 1, 2, 3, but on probation through after a while, find its hopper arrange unreasonable, equipment volume is large, operating noise is large, device structure also unreasonable, Applicable scope is single, work efficiency is lower.
2. comparison test and sequence inspection
Three-point assay is mainly used in the large-scale meeting of smokeing panel test, and comparison test and sequence inspection are mainly used in the small-sized meeting of smokeing panel test in product development process.This class smoke panel test can difference be that sample kind is few, the personnel of participation are few.The more important thing is, the object of smokeing panel test in development process is not that can two kinds of samples of inspection be differentiated, but points out which kind of sample is best, or sorts from excellent to bad, is convenient to instruct the selection of formula.
The sample size of comparison test is two kinds, after smokeing panel test, only need point out which kind of is better, where good.
After statistics, who gets the most votes's sample is exactly better sample.Comparison test requires sample to be numbered, and guarantee can not be from distinguishing in appearance.Comparison test is the pattern of the most simply smokeing panel test.
With respect to comparison test, sequence inspection will be more complex.The sample size of sequence inspection is 4-8 kind.After member of smoking smokes panel test, according to the judgement of oneself, according to the order from excellent to bad, sample is sorted.The same requirement of sequence inspection is numbered sample, and guarantee can not be from distinguishing in appearance.After the score statistics of sequence inspection, can obtain a sequence, thereby can provide more instruction to the sample screening of different mouthfeel styles.
Summary of the invention
A kind of new automated randomized racking machine of the sample that is applicable to multinomial Cigarette examining that object of the present invention is developed for above-mentioned prior art situation just, utilize the present invention can realize the automated installation that sample composition scheme generates, cigarette combines, cigarette is encoded, sample encapsulates, not only can be used for three-point assay, also can be used for comparison test and sequence inspection, simultaneously, due to the additional information of pocket under the implicit sample of this device in the time that cigarette is encoded, therefore without again sample sack being identified to sequence number.
Invention mechanism of the present invention is: by setting required sample size, the cigarette that is automatically produced at random satisfactory each sample by control system according to the setting of software system forms and encoding scheme; By program automatic control system, produce successively and meet the 2-4 that combination requires and prop up cigarette, and cigarette is carried out to automatic numbering, form a sample; By autonomous cruise speed system, sample is packed in sample sack automatically, and carry out automatic packaging.
Object of the present invention can realize by following technical measures:
A kind of automated randomized racking machine of sample that is applicable to multinomial Cigarette examining, comprise blanking code printing mechanism and the bag taking packaging mechanism that is positioned at this mechanism below, blanking code printing mechanism is by the left and right hopper for splendid attire cigarette sample, be positioned at the left and right roller of hopper below, left and right, coding roller, photoelectric detector, coding shower nozzle and be arranged on the blanking slideway composition of coding roller below, left and right roller and coding roller are antero posterior axis to be arrangeding in parallel, the outer wall of left and right roller all offers an axial sample blanking groove, the outer wall of coding roller offers 3 or 4 grooves that axially connect material, coding shower nozzle is arranged on coding roller with respect to a side of the groove that connects material, below the roller of left and right, be provided with a v shape sample and push district, the bottom that pushes district is provided with sample photoelectric detector, push rear portion, district and be provided with the push rod for sample being pushed to the groove that connects material on coding roller, bag taking packaging mechanism comprises left and right sucker, the closing device being arranged on platform and is arranged on the sample sack box of platform below, and wherein a side draught dish is rotated by bag taking electric machine control by sucker support arm.
In the present invention, in the hopper of left and right, be equipped with an active clapboard that hopper can be divided into two again, two original hoppers be divided into four hoppers, and then possess the function of four hoppers, when conversion, only need simply to load and unload two subregion dividing plates.
In the present invention, sample enters slideway after coding roller drops, and attitude is just fallen into plastic pocket after horizontality becomes vertically.Whether slideway photoelectric detector is equipped with in the exit in slideway, be used for detecting the sample that enters slideway and leave.If sample has left, roller just can put down another sample, otherwise the action of will stopping reports an error, and waits for artificial trouble-shooting.
Be provided with coding roller steady arm in coding roller bottom, it is a magnetic position sensor, is used for responding to the magnet being arranged on coding roller.When system swing roller, can just can stop operating by order motor at steady arm and after magnet signal being detected, while ensureing that roller stops, on roller, always have the groove that connects material to aim at the sample that pushes the inside, district.
Described closing device serve as reasons heat-sealing pressing plate, heat-sealing bar and control the plastics heat sealing machine of heat-sealing motor (use linear electric motors) composition that heat-sealing bar moves forward and backward, sample sack box bottom is provided with by motor-driven eccentric wheel, for the position of lifting sample sack box, be convenient to sucker and draw the plastic bag in box.
Technology contents of the present invention, working process and relevant notice also comprise following some:
1., when couple two kinds of product A, B carry out three-point assay, in prepared sample, the probability that another cigarette that is different from two identical cigarettes comes from A or B should be identical.Determining after required sample size (according to YC/T138 requirement, inspector must not be less than 6 people, conventionally number can not be greater than 30 people yet, and sample size need be slightly larger than inspector's quantity), produce each the sample cigarette source composition proposal that meets above-mentioned probability demands by Software for Design; After sample size is determined, the A, the B product cigarette minimum number that need respectively can be determined and (be no less than 2/3rds of sample size, by 30 people, A, B product cigarette quantity are for being no less than 45), in the time of Software for Design sample cigarette composition proposal, every cigarette is not repeated and random numbering in 1~99 scope;
For comparison test and sequence inspection, every bag of tobacco bale is containing each one of every kind of sample, and coding carries out random assignment and memory by computer, and does not repeat.
2. three-point assay and comparison test only need two hoppers, and sequence inspection needs 4-8 hopper.In order to reduce as far as possible the volume and weight of instrument, ensure the portability of instrument, we have designed a knockdown hopper, can realize 2-4 hopper.When the sample size of sequence inspection exceedes four kinds, need to carry out twice packing.
This hopper is made up of two symmetrical main bodys, combines and function mode by special part, carries out as required variable body, possesses the function of two hoppers or four hoppers.Function mode is controlled automatically by computer, only needs simply to load and unload two dividing plates and just can complete when switching.Hopper not only can be realized the function of four independent hoppers, but volume and weight is also less than two independent hoppers.
When three-point assay and comparison test, adopt two hoppers, splendid attire is treated the cigarette of three-point assay sample A and B respectively.By two hoppers of signal instruction control, according to sample composition scheme required three cigarettes that drop from two hoppers respectively successively;
When sequence inspection, use four hoppers, each hopper is placed a kind of sample.In the time that sample size exceedes four kinds, need to carry out twice packing.Do not need the bucket of use vacant.
3. adopt automation control system, according to sample cigarette composition and encoding scheme, by signal instruction ink jet numbering machine, the cigarette that drops is carried out to corresponding coding;
4. adopt automation control system, after the cigarette coding of each sample, rest on coding roller, sample sack is moved to the cigarette position of dropping is the below of blanking slideway simultaneously, and opens it by vacuum cup.Coding roller collection after corresponding (can 1-4 prop up) sample, rotates coding roller together, after all cigarettes that connect material in groove will be fallen in bag, re-uses hot sealing device and seals.
The scope of described cigarette autocode can be from 2 figure place codes to 5 figure place codes; In the time using 3,4 or 5 figure place code, corresponding the 1st, front two, front three can be Arabic number or English character, also can be the combination of numeral and English character;
Cigarette coding site can regulate according to the length of cigarette tipping paper, ventilation dilution punch position, conventionally adopts and carries out coding by filter end to fire end direction;
Described control system comprises: the control of compound type hopper, automatic code-spraying control, for the temporary coding roller control of sample, vacuum cup control, add heat control, encapsulation is controlled.
The advantage that the present invention compares existing artificial packing is: realized the automated randomized packing of sample, can avoid human error, alleviated hand labor intensity, increased work efficiency.
Its advantage of formerly patent that the present invention compares this case applicant is: device structure more rationally compact, body machine is little, use noise low, ensure without cylinder the safety using, not only can be used for the three-point assay of cigarette, also can be used for contrast and the sequence inspection of multiple cigarette, Applicable scope is more wide in range, and blanking, stamp efficiency are higher.Its innovation or the progressive the following aspects that is embodied in:
1) increase the conventional comparison test of product development and sequence checking function;
2) volume miniaturization technology: the volume of first generation model machine is larger, major cause is to have adopted ready-made cabinet and ready-made hopper, and ink jet numbering machine is built-in, and interior layout is also unreasonable.
3) remove Air compressor: first generation model machine pressurized air realizes the driving to cylinder, due to environment for use the non-compressed air supply of instrument, can only provide an Air compressor for oneself.Not only bulky, noise is also huge.Now they are made into electric driver, substitute cylinder with linear electric motors.We have removed compressed-air actuated demand like this, no longer need Air compressor, and the volume of instrument is reduced, and noise is eliminated substantially;
4) combination hopper technology: support that ranking method needs instrument to possess 4 to 6 hoppers.If piling up of pure ready-made hopper becomes extremely huge by the volume and weight that makes instrument, operation also can inconvenience.Present compound type hopper has two rollers, and charging position is divided into four feed bins, and wherein a storehouse can be merged in the first and second storehouses, and a storehouse can be merged in the third and fourth storehouse.When carrying out three point method and pairing comparision while smokeing panel test, use the two storehouses of the large capacity merging, and carry out ranking method while smokeing panel test, use four storehouses that separate.We just realize four buckets like this, two buckets are compatible, have solved the contradiction of large capacity, multi-functional and small size;
5) USB interface technology: first generation model machine uses two RS232 to carry out communication.Present computer does not all have RS232 serial communication interface, can only use the two serial port boards of PCMCIA that volume is larger to transfer on notebook PC, and cable is more, uses inconvenient.We realize the conversion of a USB to RS232 serial ports in self-control circuit card inside now, no longer need to install on computers two serial port boards.Computer only need use the USB interface just can control instrument.
6) raising speed: the model machine of the first generation is prepared one bag of sample average needs 25 seconds, these 25 seconds the insides, the ink cured time accounted for about 4-8 second, and everything is all work in series.By coding roller, realize sample temporary, when temporary, three samples solidify simultaneously, the cure time of three samples can be reduced to the cure time of a sample, thereby greatly save time.On the other hand, by sampling, coding and bag taking, the action of heat-sealing two parts are realized to parallel control, also can greatly save time.
7) ink jet numbering machine is placed in instrument the inside by the model machine of the first generation, not only increased the volume and weight (weighing 80 kilograms) of apparatus subject, and cannot simply change ink jet numbering machine.Ink jet numbering machine is independent, expand the alerting ability that ink jet numbering machine is selected.Ink jet numbering machine is as an individual components, and convenient disassembly, independence are transported.Although this way does not reduce cumulative volume and total weight, reduce instrument monomer volume, single heavy packages has become two independently inner wrappings, is conducive to transport and moves;
8) when when samples vertical decline, coding becomes horizontal propelling, after coding, code-spraying mechanism, shower nozzle are all exposed to instrument top, are convenient to observe and misarrangement;
Brief description of the drawings
Fig. 1 is the automated randomized packaging device integrated model of sample of the prior art schematic diagram.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the B-B cutaway view of Fig. 1.
In Fig. 1-3: 1 '. hopper, 2 '. cylinder, 3 '. electromagnet, 4 '. blanking channel, 5 '. photoelectric detector, 6 '. heat-sealing press strip, 7 '. folding cylinder, 8 '. the sucker of dehiscing, 9 '. plastic bag, 10 '. blanking port, 11 '. cigarette sample, 12 '. arc blanking plate, 13 '. lifter plate, 14 '. ink jet numbering machine, 15 '. heat-sealing bar, 16 '. bag taking sucker, 17 '. bag taking motor, 18 '. plastic bag box, 19 '. eccentric wheel motor, 20 '. rotating shaft, 21 '. eccentric wheel, 22 '. baffle plate.
Fig. 4 is integral structure schematic diagram of the present invention.
Fig. 5 is the lateral plan (right side is looked) of blanking code printing mechanism in Fig. 4.
Fig. 6 is the birds-eye view of blanking code printing mechanism in Fig. 4.
Fig. 7 is the structural representation (plastic bag has packed into after sample heat-sealing) of bag taking packaging mechanism in Fig. 4
Fig. 8 is the pneumatic schematic diagram in bag taking packaging mechanism of the present invention.
Fig. 9 is the partial enlarged drawing of coding roller position I in Fig. 4.
In Fig. 4-9: 1. hopper body, 2. hopper left wheel, 3. coding roller, 4. slideway, 5. slideway photoelectric detector, 6. heat-sealing bar, 7. heat-sealing pressing plate, 8. open sucker, 9. bag taking sucker, 10. plastic bag, 11. active clapboards, 12. samples, 13. push rods, 14. separator of battery platess, 15. code spraying machine shower nozzles, 16. active clapboards, the right roller of 17. hopper, 18. hopper base plates, 19. push district's sample photoelectric detector, 20. coding roller steady arms, 21. fork motors, 22. screw mandrels, 23. heat-sealing supports, 24. heat-sealing motors, 25 heat-sealing steady arms, 26. sucker support arms (fork), 27. sample sack lifting motors, 28. sample sack boxes, 29. coding roller motors.
A, B, C, D: hopper four bin levels
E, F: the CD outlet of hopper
G: sample pushes district
Detailed description of the invention
Below in conjunction with accompanying drawing, structure composition of the present invention, annexation, working process are described further:
As described in Fig. 4-9: a kind of automated randomized racking machine of sample that is applicable to multinomial Cigarette examining, comprise blanking code printing mechanism and the bag taking packaging mechanism that is positioned at this mechanism below, blanking code printing mechanism is made up of the left and right hopper for splendid attire cigarette sample, the blanking slideway 4 that is positioned at left and right roller 2,17, coding roller 3, photoelectric detector 19, the coding shower nozzle 15 of left and right hopper below and is arranged on coding roller 3 belows
In the exit of slideway, slideway photoelectric detector 5 is housed, is used for detecting the sample that enters slideway and whether leaves.If sample has left, roller just can put down another sample, otherwise the action of will stopping reports an error, and waits for artificial trouble-shooting.Left and right roller and coding roller 3 are antero posterior axis to be arrangeding in parallel, the outer wall of left and right roller 2,17 all offers an axial sample blanking groove, the outer wall of coding roller 3 offers four grooves that axially connect material, be provided with coding roller steady arm 20 in coding roller bottom, this steady arm is a magnetic position sensor, is used for responding to the magnet being arranged on coding roller.When system swing roller, can just can stop operating by order motor at steady arm and after magnet signal being detected, while ensureing that roller stops, on roller, always have the groove that connects material to aim at the sample that pushes the inside, district.Coding shower nozzle is arranged on coding roller with respect to a side of the groove that connects material, below the roller of left and right, be provided with a v shape sample and push district (G), the bottom that pushes groove is provided with and pushes district's sample detector 19, push district and whether have sample in order to detect sample, push groove rear portion and be provided with the push rod 13 for sample being pushed to the groove that connects material on coding roller; Bag taking packaging mechanism comprises left and right sucker 8,9, the closing device being arranged on platform and the sample plastic bag box 28 that is arranged on platform below, wherein a side draught dish is controlled rotation by fork by bag taking fork motor 19, described closing device serve as reasons heat-sealing pressing plate 7, heat-sealing bar 6 and control the plastics heat sealing machine that the heat-sealing motor 24 that moves forward and backward of heat-sealing bar forms, sample sack box 28 bottoms are provided with the eccentric wheel being driven by motor 27, for the position of lifting plastic bag box, be convenient to sucker and draw the plastic bag in box.
In the present invention, in the hopper of left and right, be equipped with an active clapboard that hopper can be divided into two again, two original hoppers be divided into four hoppers, and then possess the function of four hoppers, when conversion, only need simply to load and unload two subregion dividing plates.
The motion working processs such as concrete blanking of the present invention, stamp, encapsulation do a description by reference to the accompanying drawings:
1. hopper combination explanation: as Fig. 4 shows: in the time that active clapboard 11 and 15 is arranged on original position (as shown in existing figure), hopper forms A, B, C, tetra-subregions of D, the inspection that is used for sorting of this state, can hold at most four kinds of samples.While getting A district sample, hopper left wheel (2) left-hand revolution enters A district, blanking groove pack into continue rotation after sample and show as Fig. 4,9 to going out bin location E(), discharge in blanking groove sample and enter sample and push district G(as Fig. 4,5,9).And then contrarotation to active clapboard place stops, complete primary sample process.Get B district sample similar with the action of A district sample, just the switched in opposite of hopper left wheel.Hopper left and right symmetrical configuration, gets the process of C, D two district's samples and A, B twoth district are contrary, repeats no more.
When transferring after active clapboard 11 and 16, A, B twoth district merge into a large storehouse (being still called A district), and C, D twoth district merge into another large storehouse (being still called D district), and now hopper can fill two kinds of samples, for three-point assay and comparison test.
The reason of this design is that the sample of three-point assay is a lot, and the sample of sequence inspection is little, and the volume and weight of hopper can be greatly dwindled in compound type design, and complexity also decreases.
2. cigarette is carried and code-spraying mechanism.
System is checked through sample by photoelectric detector 19 and is arranged in sample propelling movement district G(Fig. 4 sample position) after, can drive a push rod 13(referring to Fig. 5,9) shift sample onto the groove the inside that connects material coding roller from pushing district, then allow coding roller rotate a position, next groove is aimed at and pushed district; Sample is in the process of the groove that connects material that enters coding roller, and ink jet numbering machine completes coding automatically, does not need independent control; After all samples all collect in the neat groove that connects material at coding roller, as long as after pocket is below ready to, coding roller motor 29(is referring to Fig. 6) rotation coding roller 3, sample, by slideway, is put in pocket one by one.Last coding roller rotates to initial position.
3. sample sack conveying mechanism.By sample sack box 28, fork motor 21, sucker support arm 26, eccentric wheel sample sack lifting motor 27(referring to Fig. 4,7), fork motor 21 rotates, drive sucker 9 arrive extreme lower position.Motor 27 is by eccentric wheel lifting sample sack box 28.Sucker 9 is by vacsorb sample sack, and then drive motor is fallen sample sack box by eccentric wheel.The rotation of fork motor, goes to level attitude by the sucker with sample sack 9.
4. bag taking, open bag and heat sealing mechanism.By heat-sealing motor 24, sucker 8, sucker 9, heat-sealing bar 6 and heat-sealing pressing plate 7 form.Open a bag process: heat-sealing motor 24 drives screw mandrel, make sucker 8 by the another side of vacsorb sample sack, then drive screw mandrel to return, sample sack is opened to (referring to sample sack in bag taking packaging mechanism in Fig. 4).When dropping in sample sack after all cigarettes, heat-sealing motor drives screw mandrel, pocket is closed up and be pressed on heat-sealing bar (referring to Fig. 7) above, starts heat-sealing.After having sealed, heat-sealing electric motor starting screw mandrel retrude, takes down the sample sack having encapsulated.
Application example
Embodiment 1:
Task: certain cigarette enterprise is adjusted the formula of a certain specification cigarette, need carry out three-point assay to the product before and after adjusting.Before supposing to adjust, sample is A, and after adjusting, sample is B, and inspector is 6 people.
1). sample size is set as 6, the automatic production cigarette composition of software system and encoding scheme, example is as follows:
2). in A hopper, D hopper, be respectively charged into after 20 A, B cigarette starter gear.
3). sample sack conveying mechanism takes out a sample sack from sample sack box, and moves to upright position; Bag taking, open bag and heat sealing mechanism sample sack is opened; Since 01 sample, by signal control, the right roller rotation of hopper, gets a cigarette and pushes district to revolving, and then pushes into coding roller.The photoelectric detector of ink jet numbering machine detects after this motion, instruction ink jet printer for printing coding 91; Then a position of coding roller rotation, aims at next dead slot to push district.By signal control, the right roller of hopper rotates again, gets a cigarette and props up propelling movement district, and push to coding roller, ink jet printer for printing coding 90, a position of coding roller rotation; By signal control, the rotation of hopper left wheel, gets a cigarette and props up propelling movement district, and push to coding roller, ink jet printer for printing coding 39, a position of coding roller rotation.Three samples have completed, and coding roller falls to all cigarettes in the sample sack of below; Device detects and drops after three cigarettes, and heat-sealing motor removing support closes up pocket and is pressed on heat-sealing bar, starts heat-sealing, completes the preparation of 01 sample.Last coding roller rotates to initial position.
4). repeating step 3, completes the preparation of 02,03,04,05,06 sample successively.
Embodiment 2:
Task: certain cigarette enterprise is adjusted the formula of a certain specification cigarette, need carry out three-point assay to the product before and after adjusting.Before supposing to adjust, sample is A, and after adjusting, sample is B, and inspector is 30 people.
Sample size is set as 30, the automatic production cigarette composition of software system and encoding scheme, and example is as follows:
2). in A hopper, D hopper, be respectively charged into 60 after A, B cigarette, starter gear.
With above 3), 4) identical, complete 01,02,03 ... the preparation of 30 samples.
Embodiment 3:
Certain cigarette enterprise is produced product to the license of multiple specification cigarette and is used three-point assay method to carry out aesthetic quality's Conformance Assessment.Suppose to carry out three-point assay to 10 specification cigarette products, inspection number is 30 people.
1). specification test specification quantity is 10, sample size is 30, the automatic production cigarette composition of software system and encoding scheme, example is as follows:
2). in A hopper, D hopper, be first respectively charged into after 60 A, B cigarette of specification 1 starter gear.
With above 3), 4) identical, complete 01,02,03 of specification 1 ... the preparation of 30 samples, in sample, the coding front two of all cigarettes is 01, represents that 30 samples are the sample of specification 1.After completing, in hopper, be replaced by A, the B cigarette of specification 2, starter gear, completes the preparation of 30 samples, and in the sample of specification 2, cigarette coding front two is 02.Repeat above-mentioned action, complete the preparation of each 30 samples of 10 specifications.
For the three-point assay sample of many specification products, also can use letter or word indicating to replace 01,02 ... .10 specification under digital coding illness that has not attacked the vital organs of the human body sample.
Embodiment 4
Task: certain cigarette enterprise is adjusted the formula of a certain specification cigarette, has produced four kinds of newtypes, need compare Four types, assesses the more customer's acceptance of which kind of type.The present inspection of just need to sorting.Suppose that four kinds of sample number into spectrum are A, B, C, D, inspector is 10 people.Sample size is set as 10(inspector quantity), software system produce cigarette composition and encoding scheme automatically, and example is as follows:
2). in hopper A, B, C, D, be respectively charged into 10 samples, starter gear.
With above 3), 4) basic identical (difference be quantity become 4 from 3, from feed bin A, B, C, D, sample in turn), complete 01,02,03 ... the preparation of 10 samples.