CN1820667A

CN1820667A - Method and device for checking product quality on product line of tobacco manufacture

Info

Publication number: CN1820667A
Application number: CNA2005100875201A
Authority: CN
Inventors: M·本茨维尼; E·特里维索诺
Original assignee: GD SpA
Current assignee: GD SpA
Priority date: 2005-02-16
Filing date: 2005-07-21
Publication date: 2006-08-23
Also published as: ITBO20050073A1; EP1692956A1; RU2005121502A; US20060180166A1

Abstract

Single cigarettes selected as samples at the outfeed stage of a manufacturing line undergo a systematic quality control operation, performed by a testing unit, that consists in verifying a given number of characteristics for each cigarette and generating a set of signals each reflecting the quality of a respective characteristic; the succession of signals, each assigned a value on a predetermined scale, is represented in the form of a graph. Once a significant sample has been processed, the values assigned to all the characteristics of the tested cigarettes are displayed in a table, ordered such that each column will serve effectively as a production report on an individual cigarette.

Description

Be used for the method and apparatus of examining the quality of the production on the tobacco product production line making

Technical field

The present invention relates to be used for the method and apparatus of on the production line of making tobacco product, examining the quality of the production.

The present invention is applied to make in the technical field of system of tobacco product (especially cigarette), and this system comprises cigarette machine and filter tip attachment, but and unconfined implication.

Specifically, the present invention relates to the various features or the characteristic of the cigarette of check production line exit sampling in the process of production cycle.

In the cigarette feature that stands so check, some project is obviously important: the integrality of the uniformity of weight, cut end place filling pipe tobacco, ventilation degree, printing quality, wrapping paper, and the connection steadiness between filter tip and the cigarette.

Background technology

Traditionally, in order to control the purpose of quality, the sampling cigarette of taking from the production line port of export will stand the check implemented by expert operator, and he selects single cigarette in the blanking time of regulation.Stand to sampling section the Quality Control Procedure of the visual and manual implementation of operator, and partly carry out instrument test with special-purpose verifying attachment.

In practice, whether the different characteristic value that described program is used for confirming the cigarette of sampling in given limit value, in the situation of some feature, is determined for threshold value at least by operator's experience and judgement.

Can not satisfy acceptance criteria if having one in many verification characteristics at least, then operator's any defective that will identify in the final products to be found cigarette machine of summing up in the point that or those parts of filter tip attachment then, are taked suitable action.

Can recognize that from the above described Quality Control Procedure depends on operator's experience and judgement to a great extent.Therefore, the evaluation of some feature that cigarette is presented is not necessarily objective, even in the range of DO of single production, also can not always do uniformity very.

Summary of the invention

The purpose of this invention is to provide a kind of method and apparatus, thus, all features of the product that occurs on the above-mentioned type production line will be according to the strictness that remains unchanged in a period of time and objective standard is estimated.

According to the present invention, be achieved in the method and apparatus that above-mentioned purpose is examined the quality of the production on a tobacco product production line, the principal character of described method and apparatus is set out in one or more appended claims.

Brief description of drawings

Now, rely on accompanying drawing to describe the present invention in detail by means of example, in all accompanying drawings:

Fig. 1 is the block diagram of expression one tobacco product production line, and this production line equipment has and will implement the device of examining the quality of the production of the method according to this invention;

Fig. 2 is the stereogram as the signal of the tobacco product production line of Fig. 1 shown in schematically;

Fig. 3 and 4 illustrates two curve maps of the device acquisition of using Fig. 1;

Fig. 5 and 6 illustrates the table that the device that uses Fig. 1 obtains respectively and the curve map of a correspondence.

The specific embodiment

With reference to Fig. 1 and 2, label 1 represents that integrally one is used for making the production line of the tobacco product such as cigarette 2, and it comprises a cigarette machine 3 and a filter tip attachment 4.

Cigarette machine 3 comprises multiple arrangement and machine unit, and specifically, it is equipped with one at upstream extremity and accepts the comb unit 5 of tobacco from a feed hopper (not shown); Advance to the downstream, tobacco is accepted on the combing drum 6, and operates together by one in conjunction with combing roller 6 and to advance roller 7 to be projected in a decline pipeline or the chute 8, enters thus on the belt conveyor 9, and enters in an increase in pipeline or the stovepipe 10.

The top of stovepipe 10 is surrounded by an air-breathing belt 11, and tobacco particle is collected on the air-breathing belt 11 and little by little forms continuous tobacco stream 12, and it finally provides the filling pipe tobacco to cigarette 2.

Flow of tobacco 12 is released on the paper tape that twines out from roll web 14 13, paper tape, at first by a printing equipment 15 and advances in the decorative parts 16 along a path, there, flow of tobacco is longitudinally wrapped up by above-mentioned paper tape 13 and forms a continuous cigarette rod 17.

Continuous cigarette rod 17 towards with by one the cutting station 18 present, there, bar 17 is cut into discrete segmentation predetermined and constant length by a cutter device 19 that rotates, specifically, cut into length bar 20, its length is the twice of the length of the bar of the single cigarette 2 of composition.

The device of label 21 expressions one transmission Double Length bar 20, by one group of intake roller 22 that forms the part of filter tip attachment 4, be transferred to a cutting station 23, there, by the effect of roller 25 and disc cutter 26, each Double Length bar 20 in succession is divided into two single cigarette rods 24.

Single cigarette rod 24 at first is directed to a separation drum 27 from the roller 25 of cutting work station 23, spaced apart vertically each other on this separation drum 27 by two bars 24 that each cutting action separates, then, be directed on the assembling roller 28, so, be inserted between the single bar 24 of each two of advancing in pairs by the filter tip bung 29 of two length of feed unit 30 supply of correspondence.

Each is made up of synthetic assembly two single cigarette rods 24 and a filter tip bung 29 that is placed on the two length between them, assembly that should be synthetic is discharged on the roller 31 from assembling roller 28, this roller forms the part of finishing station 32, the unit 33 that it comprises a cutting adhesive paper 34 and is fed to same station 32, an and tourelle 35, the adhesive paper 34 that it will be accepted tobacco rod/pair filter tip/tobacco rod assembly and center on a corresponding assembly is with the cigarette 2 of finishing a pair of length.

The cigarette 2 of two length is fed to a cutter device 37 by means of roller 36 in the middle of, and by the cutting action that two length filtration mouths 29 are implemented cut apart produce two in succession be revealed as mutually the same single filter-tip cigarette 2.

Two cigarette with filter tip 2 in succession guide towards an output stage 38 of filter tip attachment 4, at first advance to a upset roller 39, form a single cigarette 2 in succession by upset roller 39, then, advancing to a final roller is 40, further improves step along what this roller was that cigarette 2 will be through a similar characteristics.

As shown in Figure 2, for example, final roller is 40 to be supported by a vertical partition plate 41 that links to each other with the framework 42 of filter tip attachment 4 with 31 together with above-mentioned roller 22,25,27,28, final roller is 40 to comprise a roller 43, on this roller, in cigarette 2, pierce through a plurality of air-vents by laser generator device 44, and on a roller 45, scan cigarette.

Referring again to Fig. 1, production line 1 comprises a unit 46, by means of the quality of production that this unit comes testing cigarette 2, this unit is connected to a roller 48 by means of the single cigarette sampling apparatus that a usefulness square frame 47 is represented on input side, and this roller 48 is corresponding to the output stage 38 of filter tip attachment 4.

The quality of a plurality of features that single cigarette 2 presented is checked in 46 designs of described unit, specifically, that is, and the uniformity that fill the integrality that paper bag is wrapped up in, end, the ventilative degree that the hole obtained that pierces through by laser generator 44, printing quality, weight or the like.

In particular with reference to Fig. 1, quality inspection unit 46 is connected to a central data processing and taxon or CPU49 on outlet side, and this CPU is connected to a keyboard 50, a video display unit 51 and a printer 52 again.CPU49 also can be connected to the internet of schematically representing with square frame 59 by means of network 53.

In case a considerable amount of single cigarette 2 (such as 10) that is selected from output station 38 has been checked in quality inspection unit 46, then CPU will accept the signal of relevant each verification characteristics, it is handled and exports with the form of chart, as illustrating by means of example in Fig. 3 and 4, chart can be watched on video display unit 51.

CPU49 comprises treating apparatus 54, is endowed a value by this device from each signal that verification unit 46 receives, and for all verification characteristics is being assignment on the common one predetermined scale.

In the chart of Fig. 3 and 4, the cigarette in succession 2 that the representative of " X " axle stands quality tests, and " Y " axle mark 0 to 10 is represented the value on the above-mentioned scale.

The curve map of a series of cigarette 2 that observation obtains with respect to sampling from output stage 38 can easily be seen the quality of production that is reflected as each verification characteristics.Self-evident, a generally flat straight line represents that the quality of verification characteristics keeps constant substantially on a period of time, and the tendency that makes progress of the big number on scale is represented a kind of improvement, and tendency is then represented to become bad downwards.

In the latter's situation, the information that provides can make the operator take the correction action on the device of the production line 1 that causes negative tendency.

Excited by feedback control circuit, described action can automatically take place, and described feedback control circuit is schematically represented as square frame 55 and 56 in Fig. 1, and CPU49 is connected to the various devices and the unit of cigarette machine 3 and filter tip attachment 4 by means of feedback control circuit.

CPU49 also comprises sorter 57, and the signal of the feature of the single cigarette 2 by each check of this device reflection can be represented as the value of the numeral in as shown in Figure 5 the table.

Therefore, the information that provides of the row of each in Fig. 5 table equals " report " for corresponding cigarette effectively.

Central data is handled and taxon 49 is equipped with calculation element 58, and it can form the overall assessment of verification characteristics to each cigarette 2 of sampling.In the example of Fig. 5, be illustrated in each overall assessment on the beneath row of table and be and calculate the average of all values of giving single feature and sum up and obtain.

According to the overall assessment that calculation element 58 forms, treating apparatus 54 can produce the curve map of type shown in Figure 6, the trend of the overall assessment of the cigarette 2 of the relevant given series of samples of its expression.

Can see that production line 1 is equipped with a series of device in a conventional manner, that is, be used for monitoring the device of cigarette manufacture process, and be used for rejecting the not device of the cigarette in prescribed limits 2 of any its feature.Therefore, all cigarette 2 of being scanned by quality inspection unit 46 will be identical (at least in theory), and it accords with the examination threshold value that is formed by the straight line A that is parallel to " X " axle in Fig. 3,4 and 6 the chart.

Therefore, because above-mentioned chart provides the indication to the quality of given production cycle, so the producer will can select only market to the production lot of particular type according to these same charts.

Therefore, selecting arrangement can be installed in output stage 38 places of production line 1, and its purpose is to consider to organize tobacco product to be used for the batch of the uniqueness in different markets.

As shown in Figure 1, this system also can comprise a printer 60, it is connected with quality inspection unit 46 and is driven by calculation element 58 and/or treating apparatus 54, like this, impress on the cigarette 2 of sampling with mark 61, mark is used to refer to the evaluation that the value that all verification characteristics are given is asked the average back oeverall quality of being summed up, and perhaps the value of a feature like this is given in indication.

Claims

1. the method for the product quality of a check on the production line of making tobacco product is characterized in that it comprises the steps:

-give the product of finishing (2) of determined number from output stage (38) sampling one of production line (1);

The product of-each sampling (2) stands the step that a verification unit by correspondence (46) is implemented, and wherein, estimates the quality of the feature of predetermined quantity, and to obtain a plurality of signals, each signal reflects the quality of the single feature that each product (2) presents.

2. the method for claim 1 is characterized in that, also comprises a step, and wherein, a series of signal of the single feature of the product (2) of reflection sampling is represented with the form of chart.

3. method as claimed in claim 1 or 2 is characterized in that, comprises that one estimates the step of signal according to the value of predetermined graduated.

4. method as claimed in claim 3 is characterized in that, the scale of value all is identical for all features.

5. as claim 3 or 4 described methods, it is characterized in that, comprise that tobacco product (2) for each sampling shows that one gives the step of table of value of the feature of all checks.

6. as claim 4 or 5 described methods, it is characterized in that, comprise such step:, sum up an overall evaluation for the tobacco product (2) of each sampling according to the value of giving a plurality of verification characteristics.

7. method as claimed in claim 6 is characterized in that, overall assessment is a mean value of giving verification characteristics.

8. as claim 6 or 7 described methods, it is characterized in that, comprise such step: a series of overall assessment of summing up in the point that the product of sampling is represented with the form of curve map.

9. as the described method of one of claim 1 to 8, it is characterized in that, comprise such step: mark (61) is printed on the tobacco product (2) of check, and indicating overall evaluation, or the value of given feature is given in indication.

10. a check is at the device of making the product quality on the production line of tobacco product, and production line (1) is equipped with a machine (3) and a filter tip attachment (4) of making tobacco product (2) usually, it is characterized in that,

It comprises a unit (46), the quality of the feature of giving determined number that its check is presented at the single product (2) of output stage (38) up-sampling of production line (1), and the output signal of the quality of each each single feature of sampling product (2) is given in the generation reflection respectively, comprise that also central authorities handle and taxon (49), by this unit (49), the output signal that receives from verification unit (46) is processed, and being transferred to video display device (51), the signal of this processing is presented on the video display device (51) with the form of chart.

11. device as claimed in claim 10 is characterized in that, central data is handled and taxon (49) comprises treating apparatus (54), gives a value from each signal that quality inspection unit (46) receive at a predetermined scale by this device.

12. device as claimed in claim 11 is characterized in that, central data is handled and taxon (49) comprises sorter (57), and by this device, the signal of the feature of the tobacco product (2) of each check of reflection is listed in the table.

13. as claim 11 or 12 described devices, it is characterized in that central data is handled and taxon (49) comprises calculation element (58), by this device, according to the predetermined graduated of numerical value, the tobacco product of each check (2) is summed up as the overall assessment about all verification characteristics.

14. device as claimed in claim 13 is characterized in that, sums up in the point that the overall assessment of each check product (2) is a mean value of giving verification characteristics.

15. as claim 13 or 14 described devices, it is characterized in that central data is handled and taxon (49) comprises treating apparatus (54), by this device, produce a chart, so that indicate the trend of overall assessment for the product (2) of the sampling of giving determined number.

16. device as claimed in claim 15, it is characterized in that, comprise the device that interlocks central data processing and taxon (49), by this device, according to the trend of overall assessment, the final products (2) that form from production line (1) selected be organized into identical batch.

17. as the described device of one of claim 10 to 16, it is characterized in that, comprise printing equipment (60), it is connected to quality inspection unit (46) and is handled and taxon (49) driving by central data, by this printing equipment, the tobacco product (2) of check is impressed underlined (61), the value that it is indicated overall assessment or gives a given feature.