CN115669989A - Cigarette machine tobacco on-line stem and shred selection and separation device - Google Patents
Cigarette machine tobacco on-line stem and shred selection and separation device Download PDFInfo
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- CN115669989A CN115669989A CN202211488647.4A CN202211488647A CN115669989A CN 115669989 A CN115669989 A CN 115669989A CN 202211488647 A CN202211488647 A CN 202211488647A CN 115669989 A CN115669989 A CN 115669989A
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Abstract
The invention provides an online cut stem selecting and separating device for cut tobacco of a cigarette making machine, which comprises a cut tobacco inlet, a primary cut tobacco separating mechanism, a primary tobacco stem re-separating mechanism, a secondary tobacco stem re-separating mechanism and a cut tobacco purifying mechanism, wherein the cut tobacco inlet is connected with the primary cut tobacco separating mechanism; a harrow-carrying conveying mechanism is arranged in the first-stage tobacco shred separating mechanism and is used for evacuating and separating tobacco shreds and stems; the stem separating channel is communicated with the first-stage tobacco stem re-separating mechanism, and secondary separation of tobacco shreds and stems is realized through horizontal airflow; the secondary tobacco stem re-separation mechanism comprises a vertical gravity separation channel, and realizes tertiary separation by utilizing gravity and convective airflow; the tobacco shred purifying mechanism comprises a cyclone separator for purifying the tobacco shreds at the sorting position. The scheme can solve the problems that the connection of tobacco shreds and stem sticks is not easy to separate, the tobacco shreds are dispersed and improved, the stem shaving rate is improved, and the stem picking efficiency is improved.
Description
Technical Field
The invention relates to the field of cigarette manufacturing, in particular to an online stem and shred selection and separation device for cut tobacco of a cigarette making machine.
Background
As a mainstream machine type of a packaging machine in the tobacco industry at home and abroad, medium and high speed cigarette making machine sets such as ZJ117, ZJ118 and the like become the first choice for the transformation of various big cigarette factories at home and abroad in the transformation of small cigarettes in various big cigarette factories in recent years.
The diameters of the fine cigarettes and the medium cigarettes are reduced, the cut tobacco shreds of a cigarette factory still adopt the traditional standard, the quality defects that the cigarette wrapping paper is punctured and the like easily occur due to high stem content, the cigarettes cannot be completely removed in cigarette detection, the unpermuted punctured cigarettes are mixed into the package to form defective cigarettes, and the brand image is seriously influenced.
The problem is mainly caused by the fact that in a modified cigarette unit, functional parts for winnowing tobacco shreds and removing stems are designed according to the size of a traditional cigarette; the cigarette detection standard is lack of puncture defect detection on the fine cigarettes and the medium cigarettes.
Wherein, to the transformation of selection by winnowing pipe tobacco in the cigarette machine, the structural function who rejects the stalk bamboo slips, the applicant has carried out a series of experimental study to the pipe tobacco that the cigarette factory provided, include:
1. as shown in Table 1, 20 qualified cigarettes and 20 punctured cigarettes are sampled, the length of the tobacco stems is measured, and the length of the stems of the qualified cigarettes is distributed in a range of 0.5-1mm, and the length of the stems of the unpunctured cigarettes is distributed in a range of 0.6-1.8mm, which indicates that the tobacco puncturing is caused by thin and small stems in tobacco shreds, but has no necessary connection with the length of the stems.
2. Detecting and analyzing the stem content of the leaves before shredding, and specifically comprising the following steps: the method comprises the steps of taking 1000 g of tobacco flakes from a belt of a cabinet after leaves are stored, manually extracting stems, picking, manually tearing off all main vein tobacco stems and branch vein tobacco stems of the leaves, weighing the tobacco stems with the diameter of more than 1.5mm and the tobacco stems with the diameter of less than 1.5mm respectively, calculating the content of the tobacco stems with different diameters, comparing the content with tobacco leaves subjected to manual sheet selection, and finding that the stem content after the manual sheet selection is 3.82% (2.47% below 1.5mm and 1.35% above 1.5 mm) and the stem content without the manual sheet selection is 4.46% (2.8% below 1.5mm and 1.66% above 1.5 mm), which indicates that the stem content is slightly reduced but limited after the manual sheet selection, and thin and small stems formed after the shredding can still cause the cigarettes to be punctured.
3. The roll-to-roll packaging procedure experiment specifically comprises the following steps: the method comprises the steps of adopting a C3 cigarette making machine and a C4 cigarette making machine to respectively remove stems, finding out that the stem removing amount of the C4 cigarette making machine is higher than that of the C3 cigarette making machine, the appearance black point (puncture, dust clamping and the like) removing rate of the C3 cigarette making machine is higher than that of the C4 cigarette making machine, respectively sampling outlets of the two machines, checking the cigarette puncture condition, counting and finding out that the C3 cigarette making machine and the C4 cigarette making machine both have the condition of the missed detection of punctured cigarettes, and the cigarette puncture removing rate of the C4 cigarette making machine is higher than that of the C3 cigarette making machine.
4. The shredding width experiment specifically comprises: the tobacco cutting width of 1+0.1mm is adjusted to 0.9+0.1mm, the tobacco rod rolled by the cigarette making machine is sampled and compared with the tobacco rod content of the tobacco rod with the conventional tobacco shred width, the tobacco stem length distribution is not changed greatly under the two conditions, and the tobacco rod content of the tobacco rod is slightly reduced.
Finally, the conclusion is obtained:
1. the fine and small stems which cause the puncture of the cigarette are formed after the veins of the tobacco leaves are cut into shreds, but the length of the stems is not necessarily related.
2. The cut tobacco has the possibility of puncture as long as the cut tobacco contains cut stems, and the cut stem content of the cigarette is about 50 percent.
3. The existing cigarette making machine has the phenomenon of puncture because the puncture rate of cigarettes is not obviously changed only by adjusting winnowing parameters, namely adjusting the stem-picking weight (100-150 g) of the cigarette making machine.
Analysis in conjunction with the above conclusions, has led to several significant problems:
1. in the actual tobacco leaf with the stem sticks formed after shredding, in the subsequent processing process, part of the stem sticks and the tobacco shreds are cut off to form free stem sticks, so that the puncture rate is increased.
2. The main working principle of the structure for removing the stems in the traditional cigarette making machine is winnowing, the winnowing and the removal of the stems are realized by depending on different specific gravities of substances, the tobacco shred state is not favorable for winnowing to improve the removal rate, and the winnowing form is single and is not enough for solving all problems.
3. The tobacco shreds and the stem sticks which are connected together have higher difficulty in shaving the stems, and the problem cannot be solved by winnowing.
4. The air separation structure integrated in the cigarette making machine is limited in space and can be transformed with high difficulty.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the tobacco shred online stem sorting and separating device of the cigarette making machine, which can solve the problems that the connection of tobacco shreds and stem sticks is not easy to separate, realize the dispersive promotion of the tobacco shreds to the stem shaving rate, and the diversified stem picking and stem picking efficiencies are promoted.
The basic idea of the invention is that: on the basis of the traditional cigarette making machine, the internal structure of the original cigarette making machine is not changed, the built-in stem and stick separating mechanism is reserved, the cut tobacco entering the cigarette making machine is processed once at the inlet of the traditional cigarette making machine, on one hand, a part of stem sticks can be separated, and on the other hand, the cut tobacco entering the cigarette making machine is separated more easily.
In order to achieve the purpose, the invention adopts the technical scheme that: the cigarette machine tobacco shred online stem silk selecting and separating device comprises a tobacco shred inlet, a first-level tobacco shred separating mechanism, a tobacco stem conveying mechanism, a first-level tobacco stem re-separating mechanism, a second-level tobacco stem re-separating mechanism and a tobacco shred purifying mechanism;
the tobacco shred inlet is arranged above the first-level tobacco shred separating mechanism, the first-level tobacco shred separating mechanism comprises a box body with an open top and a plurality of harrow-carrying rotating shafts which are arranged in the box body and are arranged in parallel, each harrow-carrying rotating shaft comprises a wheel shaft and harrow teeth which are distributed on the wheel shaft and have radians, the harrow teeth on two adjacent harrow-carrying rotating shafts are distributed at intervals and in a staggered manner, gaps are reserved between the harrow teeth of two adjacent harrow-carrying rotating shafts and the wheel shaft and between the harrow teeth, the direction of the harrow-carrying rotating shafts is the same, a tobacco shred conveying channel is formed in an upper space after the plurality of harrow-carrying rotating shafts are combined, and a tobacco shred outlet aligned with the tobacco shred conveying channel is arranged at one transverse end of the box body;
the lower part of the box body is communicated with a first-stage tobacco stem re-separating mechanism, the first-stage tobacco stem re-separating mechanism comprises a vertical channel communicated with the box body, a horizontal high-pressure air tap arranged on one side of the vertical channel, a separating bin arranged on the other side of the vertical channel and a stem sliver spiral conveying mechanism arranged at the bottom of the vertical channel, a tobacco shred spiral conveying mechanism is arranged at the bottom of the separating bin, the tobacco shred spiral conveying mechanism is communicated with a tobacco shred conveying pipeline, and the outlet end of the stem sliver conveying mechanism is communicated with a second-stage tobacco stem re-separating mechanism through a pipeline;
the secondary tobacco stem re-separation mechanism comprises a vertical screening channel, the bottom of the vertical screening channel is a stem outlet, one side of the bottom of the vertical screening channel is a feeding hole, a channel with continuous break angles is arranged inside the vertical screening channel, and the top end of the vertical screening channel is communicated with the three-machine tobacco stem re-separation mechanism;
the tobacco shred purification mechanism comprises a cyclone separator, an inlet of the cyclone separator is communicated with the top end of the vertical screening channel, and the bottom of the cyclone separator is connected with the tobacco shred conveying pipeline.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly has the following advantages:
1. on the basis of an original cigarette making machine, the device is additionally arranged at an inlet to pre-treat cut tobaccos which are pre-fed into the cigarette making machine, so that on one hand, part of stems can be removed, on the other hand, the cut tobaccos can be evacuated and cut off leaves and stems, so that the stem separation of the cut tobaccos entering the cigarette making machine can be realized more easily, on the other hand, the internal structure of the cigarette making machine does not need to be adjusted greatly, and the transformation difficulty is low;
2. the primary tobacco shred separating mechanism has the main functions that tobacco shreds are dispersed through the action between the harrow of the harrow-carrying conveying mechanism and the harrow, the parts with the connection between the tobacco shreds and the stems can be dispersed and separated through the harrow teeth, meanwhile, free stems can fall from the gaps under the action of gravity due to the falling space formed by the gaps between the harrow teeth, the primary separation of the tobacco shreds and the stems is realized, the processed tobacco shreds enter the cigarette making machine again, and the efficiency of the built-in stem separating mechanism can be improved due to high looseness;
3. the first-stage tobacco stalk re-separation mechanism blows a small amount of cut stems contained in fallen cut stems into the separation bin through horizontal airflow, the cut stems fall into the cut stem spiral conveying mechanism below due to the gravity problem, the cut stems in the separation bin are generally high in purity, the cut stems are conveyed into a cigarette making machine through a cut tobacco conveying pipeline to participate in cigarette operation, and the separated cut stems continue to enter the second-stage tobacco stalk re-separation mechanism for separation due to insufficient purity;
4. the secondary tobacco stem re-separating mechanism rises in a vertical channel with continuous break angles under the action of ascending air flow and gravity, and the break angles collide with stem sticks to enable the stem sticks to be subjected to resistance and fall; meanwhile, the stems separated from the stem separating mechanism in the cigarette making machine usually contain cut tobacco, and the stems are also introduced into the secondary tobacco stem re-separating mechanism to further purify the cut stems and recycle the cut tobacco.
5. The cyclone separator removes dust and purifies the purified cut tobacco, and finally the purified cut tobacco is sent into a cigarette making machine through a cut tobacco conveying pipeline.
Drawings
FIG. 1 is a schematic structural diagram of an on-line stem-selecting and separating device for cut tobacco of a cigarette making machine.
FIG. 2 is a schematic view of the internal structure of the primary tobacco separating mechanism of the present invention.
Fig. 3 is a schematic structural diagram of a primary stalk re-separating mechanism in the invention.
Fig. 4 is a schematic structural diagram of a secondary stalk re-separating mechanism in the present invention.
In the figure: 1. a tobacco shred inlet; 2. a first-stage tobacco shred separating mechanism; 3. a first-stage stem re-separating mechanism; 4. a secondary stem re-separating mechanism; 5. a tobacco shred purification mechanism; 6. a cut tobacco outlet; 7. a tobacco shred conveying pipeline;
21. a case body; 22. a wheel axle; 23. rake teeth; 24. a motor; 25. a stem separation channel;
31. a vertical channel; 32. a horizontal air flow nozzle; 33. separating the bins; 34. a stem sliver screw conveying mechanism;
41. a second branch; 42. a stem sliver recovery groove.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
As shown in figure 1, the on-line stem selection and separation device for the cut tobacco of the cigarette making machine comprises a cut tobacco inlet 1, a primary cut tobacco separation mechanism 2, a primary tobacco stem re-separation mechanism 3, a secondary tobacco stem re-separation mechanism 4 and a cut tobacco purification mechanism 5.
As shown in fig. 2, the cut tobacco inlet 1 is arranged above the first-stage cut tobacco separating mechanism 2 and is used for being connected to a cut tobacco conveying pipeline on the inlet side of a cigarette making machine, the first-stage cut tobacco separating mechanism 2 comprises a box body 21 with an open top and a harrow conveying mechanism arranged on the box body 21, the harrow conveying mechanism comprises a plurality of harrow rotating shafts which are arranged in parallel, each harrow rotating shaft comprises a wheel shaft 22 and harrow teeth 23 with radians and distributed on the wheel shaft, the harrow teeth 23 on two adjacent harrow rotating shafts are distributed at intervals and in a staggered manner, and gaps are reserved between the harrow teeth 23 and the wheel shaft 22, between the harrow teeth 23 and the harrow teeth 23 of the two adjacent harrow rotating shafts to form a vertical stem separation channel 25; the direction of rotation of the harrow-shaped rotating shafts is the same, the upper space after the harrow-shaped rotating shafts are combined forms the tobacco shred conveying surface of the harrow-shaped conveying mechanism, the transverse end of the box body 21 is provided with the tobacco shred outlet 6, and the tobacco shred outlet 6 is used for being connected into the inlet of a cigarette making machine.
Specifically, the rake teeth 23 extend radially outward from the wheel axle 22, the bending direction of the rake teeth 23 is opposite to the rotation direction of the wheel axle 22, in the practical application process, the rake teeth 23 are formed on the surface of the wheel to form a ratchet structure, the ratchet structure is fixed on the wheel axle 22, and the ratchet structures on two adjacent wheel axles 22 are arranged in a staggered manner.
In transmission, the wheel shafts 22 are linked through belts or gears, and a motor 24 for driving the wheel shafts to rotate is arranged outside the box body 1.
The working principle of the first-level cut tobacco separating mechanism 2 is as follows:
before entering a cigarette making machine, the cut tobacco firstly enters a first-level cut tobacco separating mechanism 2 for primary cut tobacco separation, and after the cut tobacco falls into a box body, certain adhesion is often generated due to the pressure action, which is an important influence factor influencing the rejection of the stems, therefore, the cut tobacco can be fully dispersed under the action of a rake conveying belt formed by a wheel shaft 22 with rake teeth 23, in the dispersing process, free stems fall from gaps under the action of gravity and enter a stem separating channel, the stems connected with the cut tobacco are broken under the stirring action of the rake teeth 23 to form free stems, the stem separation is realized, the stems mixed in the cut tobacco are remained, and after the cut tobacco enters the cigarette making machine, further stem separation can be realized through the stem separating mechanism arranged in the cigarette making machine, so that the efficiency and the capability of stem separation are improved.
As shown in fig. 3, stem separating passageway 25 communicates one-level offal separating mechanism 3 again, one-level offal separating mechanism 3 again includes vertical passageway 31 that link up with box body 1, locates one row of vertical passageway 31 one side horizontal air flow nozzle 32, locate vertical passageway 31 opposite side separating bin 33 with locate vertical passageway bottom stem sliver screw conveyor 34, the below of box body 1 to vertical passageway 31 department width narrow gradually, the purpose of narrowing is to let the stem more concentrate, horizontal air flow nozzle 32's the effect of blowing is better, the bottom of separating bin 33 sets up pipe tobacco screw conveyor, pipe tobacco screw conveyor communicates pipe way 7. Wherein, the horizontal air flow nozzle 32 is provided with high-pressure air by an air supply part of an external cigarette making machine or is separately connected with an air pump.
The working principle of the first-level tobacco stem re-separating mechanism 3 is as follows:
because the stems separated from the tobacco shred separating mechanism are separated by gravity, a part of tobacco shreds can be mixed, the tobacco shreds are blown into the separating bin by a horizontal blowing mode by utilizing the characteristic of different gravity of the tobacco shreds and the stems, the stems fall into the stem screw conveying mechanism 34 below, the tobacco shreds are conveyed into the tobacco shred conveying pipeline 7 through the tobacco shred screw conveying mechanism and then conveyed into the internal channel of the cigarette making machine, and the stems are conveyed into the secondary tobacco stem re-separating mechanism 4 through the stem screw conveying mechanism 34 to be separated again.
As shown in fig. 4, the secondary tobacco stem re-separation mechanism 4 includes a vertical gravity separation channel, the top end of the vertical gravity separation channel is provided with a tobacco shred outlet, the bottom end of the vertical gravity separation channel is provided with a stem outlet, one side of the bottom of the vertical gravity separation channel is provided with an inlet, and a continuous bevel channel is arranged inside the vertical gravity separation channel.
Meanwhile, the inlet of the vertical gravity separation channel is also connected with a second branch 41, the terminal of the second branch 41 is provided with a stem sliver recovery groove 42, a discharge port of a stem sliver removing mechanism arranged in the cigarette making machine is connected into the stem sliver recovery groove, and secondary separation is carried out on stem slivers separated in the cigarette making machine.
The working principle of the secondary tobacco stem re-separating mechanism 4 is as follows:
the residual material containing a large amount of stems and a small amount of cut tobacco enters from the bottom inlet of the vertical gravity separation channel, under the action of suction air, the whole body moves upwards, a small amount of overweight stems directly fall down and are discharged from the stem outlet, the mixture of a large amount of stems and cut tobacco moves upwards along with air flow, in the process of moving upwards, due to the existence of continuous folding angles, the stems collide with the folding angles under the action of inertia, due to different inertia, the reaction force is larger, the influence on the stems is far greater than the cut tobacco, the upward power of the stems is offset, further separation is realized, the cut tobacco is discharged from the cut tobacco outlet at the top, and the stems are discharged from the stem outlet at the bottom.
The tobacco shred purification mechanism 5 comprises a cyclone separator, an inlet of the cyclone separator is connected with a tobacco shred outlet of the secondary tobacco stem re-separation mechanism, a bottom discharge hole of the cyclone separator is communicated with the tobacco shred conveying pipeline to realize the dust removal treatment of the tobacco shreds, and dust is discharged from a dust discharge hole above the cyclone separator and is emptied after being filtered by a subsequent filtering system.
The secondary stalk re-separating mechanism and the negative pressure power introduced into the stalk from the stalk recovering groove come from the cyclone separator.
The system optimizes the efficiency and capacity of stem picking of the existing cigarette making machine by preprocessing the cut tobacco entering the cigarette making machine and deeply picking the cut stems, so that on one hand, the cut stems are picked from the raw materials and are well dispersed, on the other hand, the picking efficiency of the cigarette making machine is higher, and the problem that the cut stems are difficult to pick is integrally solved.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides an online stalk silk choice separator of cigarette machine pipe tobacco which characterized in that: comprises a tobacco shred inlet, a first-level tobacco shred separating mechanism, a first-level tobacco stem re-separating mechanism, a second-level tobacco stem re-separating mechanism and a tobacco shred purifying mechanism;
the tobacco shred inlet is arranged above the first-stage tobacco shred separating mechanism, a harrow-carrying conveying mechanism is arranged in the first-stage tobacco shred separating mechanism, the output side of the harrow-carrying conveying mechanism is provided with a tobacco shred outlet, and a vertical stem sliver separating channel is formed in a gap of the harrow-carrying conveying mechanism;
the stem separating channel is communicated with a first-stage tobacco stem re-separating mechanism, the first-stage tobacco stem re-separating mechanism comprises a horizontal airflow nozzle, a separating bin and a stem spiral conveying mechanism, the output side of the stem spiral conveying mechanism is communicated with the inlet of a second-stage tobacco stem re-separating mechanism, and the outlet of the separating bin is communicated with a tobacco shred conveying pipeline;
the secondary tobacco stem re-separation mechanism comprises a vertical gravity separation channel, wherein a tobacco shred outlet is formed in the top end of the vertical gravity separation channel, a stem outlet is formed in the bottom end of the vertical gravity separation channel, and an inlet is formed in one side of the bottom of the vertical gravity separation channel;
the tobacco shred purification mechanism comprises a cyclone separator, an inlet of the cyclone separator is connected with a tobacco shred outlet of the secondary tobacco stem re-separation mechanism, and a bottom discharge hole of the cyclone separator is communicated with the tobacco shred conveying pipeline.
2. The on-line stem selection and separation device for cut tobaccos of cigarette making machines according to claim 1, characterized in that: one-level pipe tobacco separating mechanism includes the open box body in top and sets up the harrow conveying mechanism that takes in the box body, harrow conveying mechanism includes a plurality of harrow pivot of parallel mount, the harrow pivot includes the shaft and distributes epaxial rake teeth that has the radian of wheel, and epaxial rake teeth interval, the crisscross distribution of two adjacent harrow pivots leave the clearance between rake teeth and the shaft, between rake teeth and the rake teeth of two adjacent harrow pivots, the turning to of harrow pivot is the same, and the top space after a plurality of harrow pivot combinations forms harrow conveying mechanism's pipe tobacco is carried the face, the horizontal one end setting of box body the pipe tobacco export.
3. The on-line stem selection and separation device for the cut tobacco of the cigarette making machine according to claim 2, characterized in that: the rake teeth extend radially outward from the wheel shaft, and the rake teeth are bent in a direction opposite to the rotation direction of the wheel shaft.
4. The on-line stem selection and separation device for the cut tobacco of the cigarette making machine according to claim 3, characterized in that: the rake teeth are formed on the surface of the rotating wheel to form a ratchet structure, the ratchet structure is fixed on the wheel shafts, and the ratchet structures on two adjacent wheel shafts are arranged in a staggered mode.
5. The on-line stem selection and separation device for the cut tobacco of the cigarette making machine according to any one of claims 1 to 4, characterized in that: each wheel shaft is linked through a belt or a gear, and a motor for driving the wheel shafts to rotate is arranged outside the box body.
6. The on-line stem selection and separation device for the cut tobacco of the cigarette making machine according to claim 5, characterized in that: the lower part of the box body is communicated to a first-stage tobacco stem re-separating mechanism, the first-stage tobacco stem re-separating mechanism comprises a vertical channel communicated with the box body, a row of horizontal airflow nozzles arranged on one side of the vertical channel, a separating bin arranged on the other side of the vertical channel and a stem screw conveying mechanism arranged at the bottom of the vertical channel, the width of the lower part of the box body is gradually narrowed from the vertical channel, a tobacco shred screw conveying mechanism is arranged at the bottom of the separating bin, and the tobacco shred screw conveying mechanism is communicated with a tobacco shred conveying pipeline.
7. The on-line stem selection and separation device for cut tobaccos of cigarette making machines according to claim 6, characterized in that: and a continuous bevel channel is arranged in the vertical gravity separation channel of the secondary tobacco stem re-separation mechanism.
8. The on-line stem selection and separation device for cut tobaccos of cigarette making machines according to claim 7, characterized in that: the inlet of the secondary tobacco stem re-separating mechanism is also connected with an auxiliary separating channel, and the terminal inlet of the auxiliary separating channel is provided with a stem sliver recycling groove.
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| CN202211488647.4A CN115669989B (en) | 2022-11-25 | 2022-11-25 | Tobacco shred on-line stem shred selecting and separating device of cigarette making machine |
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| CN202211488647.4A CN115669989B (en) | 2022-11-25 | 2022-11-25 | Tobacco shred on-line stem shred selecting and separating device of cigarette making machine |
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| CN113828518A (en) * | 2021-09-29 | 2021-12-24 | 红云红河烟草(集团)有限责任公司 | Loose screening plant of cigarette processing stalk silk |
| CN218999511U (en) * | 2022-11-25 | 2023-05-12 | 郑州世峰节能科技有限公司 | Online tobacco shred feeding and relieving device of cigarette making machine |
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| US3219042A (en) * | 1961-12-20 | 1965-11-23 | Molins Organisation Ltd | Method of treating tobacco for producing a tobacco article |
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