CN103750557A - Method for adjusting drawing resistance of filter stick - Google Patents
Method for adjusting drawing resistance of filter stick Download PDFInfo
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- CN103750557A CN103750557A CN201110459830.7A CN201110459830A CN103750557A CN 103750557 A CN103750557 A CN 103750557A CN 201110459830 A CN201110459830 A CN 201110459830A CN 103750557 A CN103750557 A CN 103750557A
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Abstract
The invention relates to a method for adjusting the drawing resistance of a filter stick. The method comprises the following steps: firstly, setting the initial values of technological parameters including a specific value between the linear speed of a wire feeding roller and the production rate of a strand, a specific value between the linear speed of a plucker roller and the linear speed of a feeding roller, a specific valve between the linear speed of the feeding roller and the production rate of the strand, a specific valve between the linear speed of the wire feeding roller and the plucker roller, the pressure of an air nozzle, the roller pressure of the plucker roller, the roller pressure of the feeding roller, and the roller pressure of a stabilizing roller; and secondly, finely adjusting the matching among the technological parameters according to the detected results of the filter stick generated by the technological parameters. By using the method, the index of process capability of the drawing resistance of the filter stick is 1.33, and the stability of the quality of the filter stick can be guaranteed.
Description
Technical field
The present invention relates to a kind of adjusting process of filtering rod.
Background technology
Filtering rod stability is to affect very important factor of cigarette resistance to suction stability.Many advantages such as existing filter-stick forming device has simple in structure, stable, efficiency height, but the process that filter stick is produced is a complexity and meticulous process, and the factor that affects filtering rod quality is various and complicated.Due to the impact of the variation (in production process, tow height changes) of the otherness of tow supplied materials (filament denier of the diacetate fiber of each manufacturers produce, total denier, crispation number are different) and tow tension, the technological parameter of filter-stick forming device and each other matching relationship are difficult to determine, thereby cause the process capability index of filtering rod lower, the quality stability of filter stick is difficult to guarantee.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of process capability index that improves filtering rod, guarantees the adjusting process of the filtering rod of the quality stability of filter stick.
For solving the problems of the technologies described above, the adjusting process of filtering rod of the present invention, comprises the following steps:
One, the initial value of each technological parameter is set, and technological parameter comprises the ratio of ratio, the linear velocity of feeding roller and the ratio of tow speed of production, the linear velocity of thread delivering roller and the linear velocity of plucker roller of the linear velocity of thread delivering roller and the ratio of tow speed of production, the linear velocity of plucker roller and the linear velocity of feeding roller, the pressure of air nozzle, the roller pressure of plucker roller, the roller pressure of feeding roller, the roller pressure of stabilizing roller;
Two, according to the testing result of the filter stick of producing by above technological parameter, the matching between above-mentioned technological parameter is carried out to accurate adjustment.
Preferably, the ratio range of the linear velocity of thread delivering roller and tow speed of production is 1.003～1.090; (ratio range of the linear velocity of v and feeding roller is 1.35～1.45 to the linear velocity of plucker roller; The ratio of the linear velocity of feeding roller and tow speed of production is determined according to the characteristic of various tow; The ratio range of the linear velocity of thread delivering roller and the linear velocity of plucker roller is 0.600～0.630; The scope of the pressure of air nozzle is 0.03～0.08Mpa; The scope of the roller pressure of plucker roller is 0.19～0.21Mpa; The roller pressure of feeding roller equates with the roller pressure of plucker roller; The scope of the roller pressure of stabilizing roller is 0.07～0.10Mpa.
Preferably, step 2 mainly comprises the following steps:
1) adjust the roller pressure of stabilizing roller and the linear velocity of feeding roller;
2) adjust the linear velocity of thread delivering roller and the pressure of air nozzle;
3) linear velocity of adjustment plucker roller;
4) adjust the roller pressure of plucker roller and the roller pressure of feeding roller.
Further preferred, step 1) make filtering rod mean value and standard value difference within the scope of ± 50pa, the standard deviation of filter stick weight is less than 0.070mg.
Further preferred, step 2) make tow band in wire feeder funnel in fluffy state.
Further preferred, step 2) in corresponding the reducing of pressure of the linear velocity of thread delivering roller air nozzle while increasing; The corresponding increase of the pressure of air nozzle when the linear velocity of thread delivering roller reduces.
Further preferred, step 4) in guarantee that tow opening stent is in 225 ± 25mm.
Further preferred, step 3) in when tow opening is excessive, reduce the linear velocity of plucker roller, when tow opening is not enough, increase the linear velocity of plucker roller.
Wherein, when tow opening is excessive, the standard deviation >=70pa of filtering rod, has following three kinds of situations:
I) more than the little 0.010mg of single filter stick weight ratio standard value;
Ii) filter stick weight standard deviation >=0.080mg;
Iii) after moulding filter stick longitudinally to tear rear tow transparent.
Wherein, when tow opening is not enough, the standard deviation >=70pa of filtering rod, has following three kinds of situations:
I) more than the large 0.010mg of single filter stick weight ratio standard value;
II) filter stick weight standard deviation is between 0.070mg～0.080mg;
III) after moulding, filter stick is longitudinally torn rear tow and is had graininess.
Use said method, can make the process capability index of filtering rod be greater than 1.33, guarantee the stability of filter rod quality.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the applicable filter-stick forming device of the adjusting process of filtering rod of the present invention.
Fig. 2 is the local enlarged diagram of the filter-stick forming device shown in Fig. 1.
Fig. 3 be in the orthogonal experiment of adjusting process of filtering rod of the present invention matching between the each technological parameter of filter stick formation for the orthogonal optimum solution of the impact of filtering rod standard deviation.
Fig. 4 be in the orthogonal experiment of adjusting process of filtering rod of the present invention matching between the each technological parameter of filter stick formation for the orthogonal optimum solution of the impact of filtering rod mean value.
The specific embodiment
The applicable filter-stick forming device of the adjusting process of filtering rod of the present invention as shown in Figure 1.The technological process of this filter-stick forming device is as follows: tow is successively by after one-level air-flow loosening device 6, secondary air flow loosening device 7, stabilizing roller 4, feeding roller 3, plucker roller 2 shreddings, by plasticizer applicator 8, apply plasticizer again, the tow that applied plasticizer is drawn in by thread delivering roller 1 and wire feeder funnel 5, be wrapped to form cylindric filter bar by forming paper, filter bar becomes the filter stick of certain length in tool bit part slitting, filter stick is compiled by tray filling machine, is distributed into capsule.As shown in Figure 2, wherein wire feeder funnel 5 is provided with the air nozzle 51 of adjustable pressure, and the pressure of this air nozzle 51 is p1.Above-mentioned tow speed of production is v0, and the linear velocity of thread delivering roller 1 is v1, and the linear velocity of plucker roller 2 is v2, the linear velocity of feeding roller 3 is v3, the roller pressure of plucker roller 2 is p2, and the thrust between upper and lower two rollers of feeding roller 3 is roller pressure p3, and the thrust between upper and lower two rollers of plucker roller 2 is roller pressure p2.
The adjusting process of filtering rod of the present invention adopts following experimental verification.
Experiment material is 3.0Y/35000 tow (Zhuhai acetate fiber company), 3.3Y/39000 (German acetate fiber company), 3.3Y/39000 (Kunming acetate fiber company); Experimental facilities is KDF-2 type Filter rod making machine (Shenyang Aircraft Manufacture Co), KC combined test stand (OMI tri-function synthesized testboards, U.S. KC company manufactures).
1, determine the impact of the each technological parameter of filter stick formation on filtering rod quality.
Single diacetate fiber of planting specification is carried on respectively to filter-stick forming device operation, observe the shredding situation of tow, constantly testing and measuring technology parameter, after stable, 5 condition: v3: v0, v1: v0, v2: v3, p1, p2 (p2=p3) and the p4 in fixing following 6 conditions only allows a condition change in suitable scope respectively, get 30 filter sticks for every group, after ready to balance moisture, test respectively the indexs such as its resistance to suction, weight, and add up its mean value, standard deviation.
Tested data and corresponding process conditions are carried out to sorting-out in statistics, and result is as follows.
The ratio of the linear velocity v3 of feeding roller 3 and tow speed of production v0 is as shown in table 1 on the impact of filtering rod.Wherein tow type is the fine 3.0Y/35000 of pearl, and motor speed is 3084/point, v1: v0=1.101, v2: v3=1.5: 1, p1=0.05Mpa, p2=p3=0.22Mpa, p4=0.08Mpa.Due to tow speed of production, v0 remains unchanged, therefore v3: v0 increases, illustrates that the linear velocity v3 of feeding roller 3 increases.As shown in table 1, along with the increase of the linear velocity v3 of feeding roller 3, filtering rod mean value and filter stick weighed average are in significant increase.When the linear velocity v3 of feeding roller 3 increases to certain value, resistance to suction standard deviation and weight standard deviation all can increase.
The impact of table 1v3: v0 on filtering rod
The ratio of the linear velocity v3 of the linear velocity v2 of plucker roller 2 and feeding roller 3 is as shown in table 2 on the impact of filtering rod, wherein tow type is the fine 3.0Y/35000 of pearl, 3084/point of motor speed, v1: v0=1.101, v3: v0=1.182: 1, p1=0.1Mpa, p2=p3=0.22Mpa, p4=0.08Mpa.As shown in table 2, along with the increase of v2: v3, filtering rod mean value and the increase of filter stick weighed average are all also not obvious.And the stability of filtering rod also presents erratic variation.
The impact of table 2v2: v3 on filtering rod
The ratio of the linear velocity v1 of thread delivering roller 1 and tow speed of production v0 is as shown in table 3 on the impact of filtering rod.Wherein tow type is the fine 3.3Y/39000 of moral, and motor speed is 3085/point, v2: v3=1.65, v3: v0=1.12: 1, p1=0.05Mpa, p2=p3=0.2Mpa, p4=0.08Mpa.Due to tow speed of production, v0 remains unchanged, therefore v1: v0 increases, illustrates that the linear velocity v1 of thread delivering roller 1 increases.As shown in table 3, along with the increase of the linear velocity v1 of thread delivering roller 1, filtering rod mean value and the increase of filter stick weighed average are all also not obvious.And along with the increase of the linear velocity v1 of thread delivering roller 1, the standard deviation of the standard deviation of filtering rod and filter stick weight all goes out after first reducing and increases again.This explanation, along with the increase of the linear velocity v1 of thread delivering roller 1, there is " flex point " in the stability of filtering rod.
The impact of table 3v1: v0 on filtering rod
The pressure p 1 of air nozzle 51 is as shown in table 4 on the impact of filtering rod.Wherein tow type is the fine 3.0Y/35000 of pearl, 3050/point of motor speed, v1: v0=1.021, v2: v3=1.450, v3: v0=1.160, p2=p3=0.20Mpa, p4=0.08Mpa.As shown in table 4, along with the increase of the pressure p 1 of air nozzle 51, filtering rod mean value appearance useless significantly change.There is irregular variation in filtering rod standard deviation and weight standard deviation.
The impact of the pressure p 1 of table 4 air nozzle 51 on filtering rod
The roller pressure p2 of plucker roller 2 equates with the roller pressure p3 of feeding roller 3, and p2 and p3 are as shown in table 5 on the impact of filtering rod.Wherein tow type is the fine 3.0Y/35000 of pearl, and motor speed is 3000/point, v1: v0=1.041, v2: v3=1.417, v3: v0=1.146: 1, p1=0.05Mpa; P4=0.09Mpa.As shown in table 5, along with the increase of p2 and p3, filtering rod mean value is increasing, but it is not remarkable to increase effect.
Table 5p2 and the impact of p3 on filtering rod
The roller pressure p4 of stabilizing roller 4 is as shown in table 6 on the impact of filtering rod.Wherein tow type is the fine 3.0Y/35000 of pearl, 3000/point of motor speed, v1: v0=1.041, v2: v3=1.417, v3: v0=1.146: 1, p1=0.05Mpa, p2=p3=0.22Mpa.As shown in table 6, along with the increase of the roller pressure p4 of stabilizing roller 4, filtering rod mean value and weighed average are all significantly reducing, and filtering rod standard deviation and weight standard deviation are also significantly reducing.
The impact of the roller pressure p4 of table 6 stabilizing roller 4 on filtering rod
2, confirm the impact of matching on filtering rod quality between the each technological parameter of filter stick formation.
This experiment adopts L
27(3
13) orthogonal experiment carries out the impact test on filtering rod quality of matching between each technological parameter.Wherein six factor three levels are as shown in table 7, L
27(3
13) Orthogonal Experiment and Design table is as shown in table 8.According to the setting of carrying out each parameter shown in table 7 and table 8.Every group is got 30 filter sticks is sample, and parameter after setting completed, after its operation a period of time is stable, is taken out after equilibrium water conten, tests its resistance to suction index, and adds up its mean value, standard deviation.The variance analysis of six factor three horizontal quadrature tests is used STATISTICA6.0 statistical software to analyze.
Table 7 six factor three levels
Table 8L
27(3
13) Orthogonal Experiment and Design table
By analysis, the matching between the each technological parameter of filter stick formation for the impact of filtering rod standard deviation as shown in table 9 and Fig. 3.Wherein tow type is the fine 3.3Y/39000 of moral.As shown in table 9 and Fig. 3, p1 and v2: v3 is remarkable for the standard deviation impact of suction group, and p1 > v2: v3, and other factors is not remarkable, and optimum solution is A1B1C2D2E1F2.
Matching between the each technological parameter of table 9 filter stick formation is for the impact of filtering rod standard deviation
Matching between the each technological parameter of filter stick formation on the impact of filtering rod mean value as shown in table 10 and Fig. 4.Wherein tow type is the fine 3.3Y/39000 of moral.As shown in table 10 and Fig. 4, for the impact of resistance to suction mean value significantly, p1 is not remarkable on the impact of resistance to suction mean value for v1: v0, v2: v3, v3: v0, p2 and p3, p4.Wherein v3: v0 > v2: v3 > p4 > v1: v0 > p2 and p3, optimum solution is A1B1C3D3E1F1.
The impact of the mean value of the matching between the each technological parameter of table 10 filter stick formation on filtering rod
Matching between the comprehensive each technological parameter of filter stick formation is for the impact of filtering rod standard deviation and mean value, and comprehensive optimum solution is A1B1C3D3E1F2.
In sum, the feeding linear velocity v3 of Kun 3 and the roller pressure p4 of stable Kun 4 have the impact of conspicuousness for filtering rod mean value.Feeding Kun 3 enters shredding system as tow, and first plays gearing " initiatively " roller, is determining the feed quantity of tow.Stabilizing roller 4 is comprised of steel rider and rubber rollers.Stabilizing roller 4, except improving the variation of tow tension force under dynamic situation, also has the compression of acting on tow, the function of auxiliary tow opening.Because stabilizing roller 4 is " driven " rollers, it has the effect of the situation of pre-shredding tow and stable supplied materials tow.Therefore the coordination of the two and cooperation can determine the size of the mean value of filter stick tow.In order to reduce the standard deviation of resistance to suction, when can suitable increase stablizing the roller pressure p4 of Kun 4, also to increase the linear velocity v3 of feeding Kun 3.
Thread delivering roller 1 is connecting tow opening section and filter stick formation system, and in the situation that other technological parameter is constant, the linear velocity v1 of suitable thread delivering roller 1 can play to filter stick formation system the effect of certain storage silk and wire feed.The comparable filter stick speed of production of the linear velocity v1 v0 of thread delivering roller 1 is large, i.e. v1 >=v0.Air nozzle 51 is arranged on wire feeder funnel 5, plays storage silk and wire feed, and the air pressure that this place applies is referred to as air nozzle pressure p 1.The pressure p 1 of air nozzle 51 has the impact of conspicuousness for filtering rod mean value.As shown in Figure 2, the cooperation of the two is wanted so that tow band is advisable in fluffy state in wire feeder funnel 5 in the cooperation of thread delivering roller 1 and air nozzle 51.
In the shredding process of tow, at the linear velocity v3 of feeding roller 3, determining the feed quantity of tow, the linear velocity v2 of plucker roller 2 is determining the level of stretch of tow, the linear velocity ratio v2 of two rollers: v3 cooperation is determining the shredding effect that tow is longitudinal.V2: v3 has the impact of conspicuousness for filtering rod mean value and standard deviation.Reduce the standard deviation of resistance to suction, reasonably v2: v3 value is just particularly important.
The size of roller pressure p2 and p3 is determining that tow is drawn stressed size by plucker roller in running.Roller pressure p2 and p3 are determining size and the horizontal shredding effect of tow that tow flyings volume production is raw.
According to above-mentioned experiment, a kind of specific embodiment of the adjusting process of filtering rod of the present invention is as follows.
(1) establish into initial parameter, and detect each parameter and arrange the value of rear filter stick mean value and standard deviation.Wherein initial parameter that scope is set is as shown in table 11.
The scope that arranges of table 11 initial parameter
| Technological parameter | The scope that arranges of initial parameter |
| v1∶v0 | 1.003-1.090 |
| v2∶v3 | 1.35-1.45 |
| v3∶v0 | According to various tow, specifically determine |
| v1∶v2 | 0.600-0.630 |
| P1(Mpa) | 0.03-0.08 |
| P2 and P3 (Mpa) | 0.19-0.21 |
| P4(Mpa) | 0.07-0.10 |
(2) according to testing result, matching between each parameter is carried out to accurate adjustment.
1. adjust the roller pressure p4 of stabilizing roller 4 and the linear velocity v3 of feeding roller 3, the difference that makes filtering rod mean value and standard value is within the scope of ± 50pa, and the standard deviation of filter stick weight is less than 0.070mg.
2. adjust the pressure p 1 of linear velocity v1 and the air nozzle 51 of thread delivering roller 1, make tow band in wire feeder funnel 5 in fluffy state.Conventionally the linear velocity v1 of thread delivering roller 1 increases, corresponding the reducing of pressure p 1 of air nozzle 51; The linear velocity v1 of thread delivering roller 1 reduces, the corresponding increase of pressure p 1 of air nozzle 51.
3. adjust the linear velocity v2 of plucker roller 2, when tow opening is excessive, reduce the linear velocity v2 of plucker roller 2, when tow opening is not enough, increase the linear velocity v2 of plucker roller 2.When wherein tow opening excessively and tow opening is not enough, the standard deviation of filtering rod all can be greater than 70pa.Method of adjustment excessive to tow opening and the judgment basis of tow opening deficiency and the linear velocity v2 of plucker roller 2 is as shown in table 12.
The method of adjustment of the linear velocity v2 of table 12 plucker roller 2
4. adjust the roller pressure p2 of plucker roller 2 and the roller pressure p3 of feeding roller 3, guarantee that tow opening stent is in 225 ± 25mm.Conventionally the roller pressure p3 of feeding roller 3 is slightly larger than the roller pressure p2 of plucker roller 2.
Use said method, can make the process capability index of filtering rod be greater than 1.33, guarantee the stability of filter rod quality.The adjusting process of the filtering rod above embodiment of the present invention being provided is described in detail; for one of ordinary skill in the art; according to the thought of the embodiment of the present invention; all will change in specific embodiments and applications; in sum; this description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (10)
1. an adjusting process for filtering rod, is characterized in that comprising the following steps:
One, the initial value of each technological parameter is set, described technological parameter comprises the ratio of linear velocity (v1) Yu the tow speed of production (v0) of thread delivering roller (1), the ratio of the linear velocity (v2) of plucker roller (2) and the linear velocity (v3) of feeding roller (3), the linear velocity (v3) of feeding roller (3) and the ratio of tow speed of production (v0), the ratio of the linear velocity (v1) of thread delivering roller (1) and the linear velocity (v2) of plucker roller (2), the pressure (p1) of air nozzle (51), the roller pressure (p2) of plucker roller (2), the roller pressure (p3) of feeding roller (3), the roller pressure (p4) of stabilizing roller (4),
Two, according to the testing result of the filter stick of producing by above technological parameter, the matching between above-mentioned technological parameter is carried out to accurate adjustment.
2. the adjusting process of filtering rod according to claim 1, is characterized in that: the linear velocity (v1) of described thread delivering roller (1) is 1.003～1.090 with the ratio range of tow speed of production (v0); The linear velocity (v2) of described plucker roller (2) is 1.35～1.45 with the ratio range of the linear velocity (v3) of feeding roller (3); The linear velocity (v3) of described feeding roller (3) is determined according to the characteristic of various tow with the ratio of tow speed of production (v0); The linear velocity (v1) of described thread delivering roller (1) is 0.600～0.630 with the ratio range of the linear velocity (v2) of plucker roller (2); The scope of the pressure (p1) of described air nozzle (51) is 0.03～0.08Mpa; The scope of the roller pressure (p2) of described plucker roller (2) is 0.19～0.21Mpa; The roller pressure (p3) of described feeding roller (3) equates with the roller pressure (p2) of described plucker roller (2); The scope of the roller pressure (p4) of described stabilizing roller (4) is 0.07～0.10Mpa.
3. the adjusting process of filtering rod according to claim 1 and 2, is characterized in that:
Described step 2 mainly comprises the following steps:
1) adjust the linear velocity (v3) of roller pressure (p4) and the described feeding roller (3) of described stabilizing roller (4);
2) adjust the linear velocity (v1) of described thread delivering roller (1) and the pressure (p1) of described air nozzle (51);
3) adjust the linear velocity (v2) of described plucker roller (2);
4) adjust the roller pressure (p2) of described plucker roller (2) and the roller pressure (p3) of described feeding roller (3).
4. the adjusting process of filtering rod according to claim 3, is characterized in that: described step 1) difference that makes filtering rod mean value and standard value is within the scope of ± 50pa, and the standard deviation of filter stick weight is less than 0.070mg.
5. the adjusting process of filtering rod according to claim 3, is characterized in that: described step 2) make tow band in wire feeder funnel (5) in fluffy state.
6. the adjusting process of filtering rod according to claim 3, is characterized in that: described step 2) described in the linear velocity (v1) of thread delivering roller (1) while increasing described in corresponding the reducing of pressure (p1) of air nozzle (51); The corresponding increase of pressure (p1) of air nozzle (51) described in when the linear velocity (v1) of described thread delivering roller (1) reduces.
7. the adjusting process of filtering rod according to claim 3, is characterized in that: described step 4) in guarantee that tow opening stent is in 225 ± 25mm.
8. the adjusting process of filtering rod according to claim 3, it is characterized in that: described step 3) in when tow opening is excessive, reduce the linear velocity (v2) of plucker roller (2), when tow opening is not enough, increase the linear velocity (v2) of plucker roller (2).
9. the adjusting process of filtering rod according to claim 8, is characterized in that: when described tow opening is excessive, the standard deviation >=70pa of filtering rod, has following three kinds of situations:
I) more than the little 0.010mg of single filter stick weight ratio standard value;
Ii) filter stick weight standard deviation >=0.080mg;
Iii) after moulding filter stick longitudinally to tear rear tow transparent.
10. the adjusting process of filtering rod according to claim 8, is characterized in that: when described tow opening is not enough, the standard deviation >=70pa of filtering rod, has following three kinds of situations:
I) more than the large 0.010mg of single filter stick weight ratio standard value;
II) filter stick weight standard deviation is between 0.070mg～0.080mg;
III) after moulding, filter stick is longitudinally torn rear tow and is had graininess.
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| CN103750557B (en) | 2015-03-25 |
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