CN111847027B - Tobacco flake turn-over device - Google Patents
Tobacco flake turn-over device Download PDFInfo
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- CN111847027B CN111847027B CN201910339939.3A CN201910339939A CN111847027B CN 111847027 B CN111847027 B CN 111847027B CN 201910339939 A CN201910339939 A CN 201910339939A CN 111847027 B CN111847027 B CN 111847027B
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- negative pressure
- turn
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- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 165
- 230000007306 turnover Effects 0.000 title claims description 119
- 244000061176 Nicotiana tabacum Species 0.000 title 1
- 241000208125 Nicotiana Species 0.000 claims abstract description 164
- 238000009423 ventilation Methods 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims 17
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 238000001179 sorption measurement Methods 0.000 abstract description 9
- 230000006378 damage Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 238000005192 partition Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 208000032912 Local swelling Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H15/00—Overturning articles
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/33—Modifying, selecting, changing orientation
- B65H2301/333—Inverting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention discloses a tobacco flake turning device which comprises a turning roller and a conveying device, wherein the turning roller is used for adsorbing tobacco flakes and rotating the tobacco flakes to a turning position for release; the conveying device conveys the tobacco flakes to be turned over to the turning-over roller, and receives and conveys the turned-over tobacco flakes. The tobacco flake turning device provided by the invention can not cause damage to tobacco flakes in the adsorption and release processes, can realize nondestructive turning of the tobacco flakes, has high efficiency and good stability, reduces a large amount of manpower and operation cost, occupies small space, and is easy to mold.
Description
Technical Field
The invention relates to tobacco manufacturing equipment, in particular to a tobacco flake turning device.
Background
The tobacco classification is to divide the tobacco into different grades according to the quality characteristics and the quality degree of the tobacco, so that each grade of tobacco has relatively consistent quality characteristics and quality level for the cigarette industry. For the tobacco flakes needing intelligent automatic grading, the front surface and the back surface of each single Zhang Yan piece are required to be scanned so as to extract more tobacco leaf characteristic data, achieve better grading effect and provide grading accuracy. At present, tobacco leaves are turned over by a worker in a one-to-one manner, so that huge labor waste is caused, and the running cost is increased.
The Chinese patent with the application number 201810300281.0 discloses a compound spraying method, wherein spraying and drying of paper web or dry reconstituted tobacco flakes are respectively carried out at an independent upper spraying part and a drying part, after one-side spraying and drying are finished, the paper web or dry reconstituted tobacco flakes pass through a turnover part to realize turnover, then upper spraying from top to bottom is carried out again, and independent drying is carried out. The turnover part comprises a turnover part net, a turnover part negative pressure box and a turnover part guide roller set. The whole structure is complex, the folding conveying mechanism is required to complete overturning in a matching way, the occupied space is large, the cost is high, and the device cannot be used in a system for grading raw tobacco leaves; and the tobacco leaf curl angle is very big in the transportation process, and the injury to the dry tobacco leaf is very big.
The present invention has been made in view of this.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and providing a tobacco flake turning device.
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that: the tobacco flake overturning device comprises an overturning roller and a conveying device, wherein the overturning roller is used for adsorbing tobacco flakes and rotating the tobacco flakes to overturning positions for release; the conveying device conveys the tobacco flakes to be turned over to the turning-over roller, and receives and conveys the turned-over tobacco flakes.
Further, the tobacco flake release device comprises a first turn-over roller and a second turn-over roller which are arranged in parallel, wherein the first turn-over roller and the second turn-over roller sequentially adsorb different surfaces of the tobacco flake and rotate to corresponding positions to release the tobacco flake.
Further, the first turn-over roller and the second turn-over roller are arranged above the conveying device in parallel, the first turn-over roller adsorbs the upper surface of the tobacco flakes conveyed to the lower side of the first turn-over roller and rotates to the position adjacent to the second turn-over roller to release, and the second turn-over roller adsorbs the lower surface of the tobacco flakes released by the first turn-over roller and rotates to the conveying device to release the tobacco flakes;
Preferably, the rotation directions of the two turn-over rollers are opposite, and the rotation speeds are the same;
more preferably, the diameter of the circumferential working surface of the first turn-up roller is equal to or smaller than the diameter of the circumferential working surface of the second turn-up roller.
Further, the conveying device comprises a conveying belt for bearing and conveying the tobacco flakes, and the conveying belt conveys the tobacco flakes to the first turning-over roller and receives and conveys the tobacco flakes released by the second turning-over roller;
Preferably, the axes of the two turn-over rollers are parallel to the conveying belt;
preferably, the conveying speed of the conveying belt is the same as the rotating speed of the two turn-over rollers;
more preferably, the conveying speed of the conveying belt is between 1m/s and 5 m/s.
Further, the circumferential working surface of the turnover roller comprises a negative pressure surface for absorbing the tobacco flakes and a positive pressure surface for releasing the tobacco flakes.
Further, a pressure cavity is formed between the rotating shaft of the turn-over roller and the circumferential working surface, the pressure cavity comprises a negative pressure cavity and a positive pressure cavity, the circumferential working surface rotates to the negative pressure cavity to form a negative pressure surface, and the circumferential working surface rotates to the positive pressure cavity to form a positive pressure surface;
Preferably, the positive pressure cavity is provided with pressure by a fan/compressed air/blower device, and the negative pressure cavity is provided with negative pressure by a high-pressure fan/suction device;
More preferably, the pressure of the positive pressure cavity is more than or equal to 0MPa and less than or equal to 0.5MPa, and the pressure of the negative pressure cavity is more than or equal to-1 MPa and less than 0MPa.
Further, a plurality of ventilation holes are formed in the circumferential working surface, the negative pressure surface forms negative pressure attractive force on the tobacco flakes through the ventilation holes, and the positive pressure surface prevents the tobacco flakes from being adsorbed through the ventilation holes;
Preferably, the ventilation holes are uniformly distributed on the circumferential working surface;
more preferably, the pore diameter of the ventilation holes is between 0.5mm and 10mm, and the pore spacing is between 2mm and 100 mm.
Further, the turnover roller also comprises two partition boards connected with the rotating shaft and the circumferential working surface, and the partition boards divide the pressure cavity into a negative pressure cavity and a positive pressure cavity which are mutually sealed;
Preferably, the partition plate is connected with the rotating shaft and the circumferential working surface along the radial direction of the turn-over roller.
Further, the pressure of the pressure cavity adjacent to the first turn-over roller and the second turn-over roller is opposite;
preferably, the first turn-over roller is transited from the negative pressure cavity to the positive pressure cavity along the anticlockwise direction at the adjacent position of the two turn-over rollers, and the second turn-over roller is transited from the positive pressure cavity to the negative pressure cavity along the clockwise direction at the adjacent position of the two turn-over rollers;
more preferably, the pressure cavity of the first turn-over roller close to the conveying device is a negative pressure cavity, and the pressure cavity of the second turn-over roller close to the conveying device is a positive pressure cavity.
Further, the negative pressure cavity of the first turn-over roller is intersected with the negative pressure cavity of the second turn-over roller below the plane through which the axes of the two turn-over rollers pass;
Preferably, the negative pressure surface of the first turn-over roller is smaller than the positive pressure surface, and the negative pressure surface of the second turn-over roller is larger than the positive pressure surface.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects.
1. The tobacco flake turning device provided by the invention can not cause damage to tobacco flakes in the adsorption and release processes, can realize nondestructive turning of the tobacco flakes, has high efficiency and good stability, reduces a large amount of manpower and operation cost, occupies small space, and is easy to mold.
2. According to the invention, the first turn-over roller and the second turn-over roller sequentially adsorb different surfaces of the tobacco flakes and rotate to corresponding positions to release the tobacco flakes, so that the nondestructive turn-over of the tobacco flakes is realized, and the turn-over roller has the advantages of simple structure, convenience in molding and good turn-over effect.
3. The two turn-over rollers are arranged above the conveying device in parallel, so that the space is saved, and the connection with other structures and other working procedures or the conveying of tobacco flakes are facilitated.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
Fig. 1 is a schematic view of a tobacco flake turning device of the present invention.
In the figure: 1. a first turn-over roller; 2. a second turn-over roller; 3. a conveying device; 4. a positive pressure chamber; 5. a negative pressure chamber; 6. an upper surface; 7. and a lower surface.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
As shown in fig. 1, the application discloses a tobacco sheet turning device, which comprises a turning roller and a conveying device 3, wherein the turning roller is used for absorbing tobacco sheets and carrying the tobacco sheets to rotate to a turning position to release the tobacco sheets; the conveying device 3 is used for conveying the tobacco flakes to be turned over to the turning-over roller, receiving and conveying the turned-over tobacco flakes. According to the application, the turning roller adsorbs the tobacco flakes on the surface of the turning roller, so that the tobacco flakes released after the tobacco flakes are driven to rotate to a certain position are the tobacco flakes with the front and back surfaces exchanged. The conveying device 3 is matched with the turnover roller, conveys the tobacco flakes to the turnover roller before turnover, and is matched with the tobacco flakes after turnover and is received after turnover to be conveyed to the next process. In general, the turning of the tobacco sheet is achieved by at least two turning rollers. The application can not damage the tobacco flakes in the adsorption and release processes, can realize the nondestructive turning of the tobacco flakes, and has high efficiency and good stability. And the reliable mechanical device is adopted to realize the overturning process of the tobacco flakes, so that a great deal of manpower can be reduced, and the running cost can be reduced.
Example 1
In this embodiment, the tobacco sheet turning device includes a first turning roller 1 and a second turning roller 2 that are arranged in parallel, where the first turning roller 1 and the second turning roller 2 sequentially adsorb different surfaces of the tobacco sheet and rotate to corresponding positions to release the tobacco sheet.
In a specific embodiment, the conveying device 3 conveys the tobacco sheet to the first turn-over roller 1, the first turn-over roller 1 adsorbs a first surface of the tobacco sheet and rotates with the tobacco sheet to the second turn-over roller 2 to release the tobacco sheet, the second turn-over roller 2 adsorbs a second surface of the tobacco sheet released by the first turn-over roller 1, the second surface is a surface opposite to the first surface and rotates with the tobacco sheet to the conveying device 3 to release the tobacco sheet, and the conveying device 3 conveys the turned-over tobacco sheet to the next procedure. The turn-over roller has simple structure, convenient molding and good turn-over effect.
In a further embodiment, the first turn-over roller 1 and the second turn-over roller 2 are arranged above the conveying device 3 in parallel, the first turn-over roller 1 adsorbs the upper surface 6 of the tobacco sheet conveyed to the lower side and rotates to be released adjacent to the second turn-over roller 2, the second turn-over roller 2 adsorbs the lower surface 7 of the tobacco sheet released by the first turn-over roller 1 and rotates to be released to the conveying device 3, and the tobacco sheet falls on the conveying device 3 under the self gravity to be conveyed to the next process.
Preferably, the rotation directions of the two turn-over rollers are opposite, because the rotation directions of the two turn-over rollers are the same, including two cases, the first two turn-over rollers are both rotated counterclockwise, the relative speed of the two turn-over rollers is twice that of the opposite rotation directions, one problem is that the tobacco sheet can be torn off when the connection between the two turn-over rollers is not done in a short time, the tobacco sheet is easy to be damaged, the second turn-over roller 2 is easy to be absorbed in place, the tobacco sheet falls off and can not be turned over, and the other problem is that the tobacco sheet enters the position where the second turn-over roller 2 releases the tobacco sheet when the tobacco sheet is not absorbed in place, and the tobacco sheet can be rolled up or worn or the turning-over fails. The second two turn-over rollers rotate clockwise, the relative speed of the two turn-over rollers in the case is twice as high as that of the opposite rotation direction, one problem is that the tobacco flakes can not be easily broken due to the fact that the tear force is received when the two turn-over rollers are connected in a short time, and the tobacco flakes are easily broken, and are easily fallen off due to the fact that the second turn-over roller 2 is not adsorbed in place, and the other problem is that the tobacco flakes rotate for a large half circle on the first turn-over roller 1 and rotate for a large half circle on the second turn-over roller 2, so that time is wasted. The rotation speeds of the two turn-over rollers are the same, the tobacco flakes are more stable in the process of switching from the first turn-over roller 1 to the second turn-over roller 2, the adsorption effect is good, and the tobacco flakes are not damaged due to the fact that the tobacco flakes are torn caused by different speeds.
More preferably, the diameter of the circumferential working surface of the first turn-up roller 1 is equal to or smaller than the diameter of the circumferential working surface of the second turn-up roller 2. When the diameter of the circumferential working surface of the first turn-over roller 1 is larger than that of the second turn-over roller 2, there is a possibility that the second turn-over roller 2 cannot fully adsorb the tobacco flakes, and various conditions such as breakage of the tobacco flakes or falling of the tobacco flakes may occur. A further preferred embodiment is that the circumferential running surfaces of the two turn-up rolls have the same diameter. That is to say, the two turn-over rollers are the same in size, the manufacture and the forming are convenient, the cost is saved, the control is easier, the tobacco flakes are adsorbed on the turn-over rollers with the same radian, the force application is uniform when the tobacco flakes are deformed, and the damage to the tobacco flakes caused by repeatedly adsorbing the tobacco flakes is reduced.
Example two
On the basis of the first embodiment, in this embodiment, the conveying device 3 includes a conveying belt for carrying and conveying the tobacco flakes, and the conveying belt conveys the tobacco flakes to be turned over to the first turning roller 1, receives and conveys the turned-over tobacco flakes released by the second turning roller 2, and conveys the turned-over tobacco flakes to the next process.
The axes of the two turn-over rollers are parallel to the conveying belt, so that the phenomenon that the tobacco flakes are not adsorbed in place due to inclination and the phenomenon that the tobacco flakes are turned over due to inclination is prevented.
The conveying speed of the conveying belt is the same as the rotating speed of the two turn-over rollers; the tobacco flakes caused by too high conveying speed of the conveying belt are prevented from being overlapped and adsorbed together, and the turnover speed caused by too low conveying speed of the conveying belt is also prevented from being low, so that time is wasted.
In a specific embodiment, the conveying speed of the conveying belt is between 1m/s and 5 m/s.
Example III
On the basis of the above embodiment, in this embodiment, the circumferential working surface of the turn-over roller includes a negative pressure surface for absorbing the tobacco flakes and a positive pressure surface for releasing the tobacco flakes. The negative pressure has attractive force to the tobacco flakes, and the tobacco flakes are adsorbed on the turn-over roller and can be brought to rotate to other positions. The positive pressure is not attractive to the tobacco flakes or repulsive to the tobacco flakes, preventing the tobacco flakes from continuing to be absorbed on the turn-over roller. The positive pressure and the negative pressure in the application are positive pressures greater than or equal to the standard atmospheric pressure and negative pressures less than the standard atmospheric pressure.
The specific implementation mode is that a pressure cavity is formed between the rotating shaft of the turn-over roller and the circumferential working surface, the pressure cavity comprises a negative pressure cavity 5 and a positive pressure cavity 4, the circumferential working surface rotates to the position of the negative pressure cavity 5 to form a negative pressure surface, and the circumferential working surface rotates to the position of the positive pressure cavity 4 to form a positive pressure surface. The pressure cavity is divided into a negative pressure cavity 5 and a positive pressure cavity 4, the circumferential working surface rotating to the negative pressure cavity 5 forms a negative pressure surface, the tobacco flakes can be adsorbed, the positive pressure surface is formed when the circumferential working surface adsorbing the tobacco flakes rotates to the positive pressure cavity 4, the adsorption effect on the tobacco flakes is lost, and the continuous adsorption of the tobacco flakes is prevented. Preferably, the positive pressure chamber 4 is provided with pressure by a blower/compressed air/blower device and the negative pressure chamber 5 is provided with negative pressure by a high pressure blower/suction device. More preferably, the pressure in the positive pressure chamber 4 is 0MPa or more and 0.5MPa or less, and the pressure in the negative pressure chamber 5 is-1 MPa or more and 0MPa or less.
Further, a plurality of ventilation holes are formed in the circumferential working surface, the circumferential working surface is communicated with the pressure cavity through the ventilation holes, and the same pressure as that in the pressure cavity is formed at the circumferential working surface. The negative pressure surface forms negative pressure attractive force to the tobacco flakes through the air holes, the air holes are used for communicating the negative pressure surface with the negative pressure cavity 5, the pressure at the negative pressure surface is negative pressure, the pressure is smaller than the pressure of external air, and the external air flows from the outside to the negative pressure cavity 5 to generate attractive force to the tobacco flakes. The positive pressure surface prevents the tobacco flakes from being adsorbed through the air holes, the air holes are used for communicating the positive pressure surface with the positive pressure cavity 4, the pressure at the positive pressure surface is positive pressure, the pressure of the positive pressure cavity 4 is more than or equal to the pressure of external air, the air in the positive pressure cavity 4 flows outwards, the positive pressure surface has repulsive force to the tobacco flakes, or the positive pressure surface does not have any pressure to the tobacco flakes.
Preferably, the ventilation holes are uniformly distributed on the circumferential working surface, so that the adsorption effect on the tobacco flakes is uniform and stable, and accidents such as tilting or rolling or too much local protrusion/depression caused by insufficient local adsorption can be avoided. Or the repelling effect on the tobacco flakes is uniform and stable, and edge curling or local swelling can not occur. Specifically, the pore diameter of the ventilation holes is between 0.5mm and 10mm, and the pore spacing is between 2mm and 100 mm.
Further, still include two baffles of connecting rotation axis and circumference working face in the turn-over roller, the baffle separates into negative pressure chamber 5 and malleation chamber 4 with the pressure cavity, seals each other between negative pressure chamber 5 and the malleation chamber 4, prevents that the unsealed pressure that leads to between negative pressure chamber 5 and the malleation chamber 4 can't keep, and then can't form negative pressure or malleation that leads to, can't normally adsorb or release the tobacco flake.
In a preferred embodiment, the partition is connected to the rotation shaft and the circumferential working surface in the radial direction of the turn-up roller. The partition board is simple to form and convenient to install.
Example IV
On the basis of the embodiment, the pressure of the pressure cavity at the adjacent position of the first turning-over roller 1 and the second turning-over roller 2 is opposite, the tobacco flakes are transferred in a cross mode at the adjacent position of the first turning-over roller 1 and the second turning-over roller 2, the distance is relatively short, the pressure to which the tobacco flakes are subjected is small, and the tobacco flakes cannot be torn or damaged. The pressure of the adjacent pressure cavities is opposite, so that the transition of the tobacco flakes from one turnover roller to the other turnover roller can be realized. Specifically, the first turn-over roller 1 transitions from the negative pressure cavity 5 to the positive pressure cavity 4 in the counterclockwise direction at the adjacent position of the two turn-over rollers, the second turn-over roller 2 transitions from the positive pressure cavity 4 to the negative pressure cavity 5 in the clockwise direction at the adjacent position of the two turn-over rollers, the suction force of the first turn-over roller 1 is lost at the adjacent position of the tobacco sheet, and the suction force of the second turn-over roller 2 is received, so that the turn-over and the handover transition of the tobacco sheet are performed. More specifically, the pressure cavity of the first turn-over roller 1 near the conveying device 3 is a negative pressure cavity 5, and the pressure cavity of the second turn-over roller 2 near the conveying device 3 is a positive pressure cavity 4. The phenomenon that the tobacco flakes cannot be turned over due to the fact that the first turning-over roller 1 adsorbs the tobacco flakes by the second turning-over roller 2 is prevented.
The specific implementation mode is that the negative pressure cavity 5 of the first turn-over roller 1 is intersected with the negative pressure cavity 5 of the second turn-over roller 2 partially below the plane through which the axes of the two turn-over rollers pass; better turn-over transition is carried out to the tobacco flake, prevents that the first turn-over roller 1 from losing the adsorption capacity to the tobacco flake when second turn-over roller 2 has not adsorbed to the tobacco flake yet and leading to the tobacco flake to drop and can't turn over, perhaps the tobacco flake curls.
Preferably, the negative pressure surface of the first turn-over roller 1 is smaller than the positive pressure surface, and the negative pressure surface of the second turn-over roller 2 is larger than the positive pressure surface. The first turning-over roller 1 sucks the tobacco flakes, rotates for a short distance, is sucked by the second turning-over roller 2, rotates to a certain position and is released.
Example five
Unlike the first embodiment, the conveying device 3 includes a conveying structure for carrying and conveying the tobacco sheet to be turned over, and also includes a receiving structure for receiving and conveying the turned-over tobacco sheet.
Further, the first turn-up roller 1 is arranged above the conveying structure and the second turn-up roller 2 is arranged above the receiving structure. The conveying structure comprises a conveying belt for bearing and conveying the tobacco flakes to be turned over to the first turning-over roller 1; the receiving structure includes a receiving belt that receives and conveys the tobacco sheet that has been turned over by the second turning roller 2.
In a specific embodiment, the conveyor belt and the receiving belt may be different portions of the same conveyor belt or may be two different belts. In this embodiment two different belts.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.
Claims (20)
1. A tobacco flake turning device, comprising:
the overturning roller is used for adsorbing the tobacco flakes and rotating the tobacco flakes to overturning positions for release;
the conveying device is used for conveying the tobacco flakes to the turnover rollers and receiving and conveying the turned tobacco flakes;
the tobacco flake turning device is provided with a first turning roller and a second turning roller which are arranged in parallel, and the first turning roller and the second turning roller sequentially adsorb different surfaces of the tobacco flakes and rotate to corresponding positions to release the tobacco flakes;
the circumferential working surface of the turn-over roller comprises a negative pressure surface for absorbing the tobacco flakes and a positive pressure surface for releasing the tobacco flakes;
the negative pressure surface of the first turn-over roller is smaller than the positive pressure surface, and the negative pressure surface of the second turn-over roller is larger than the positive pressure surface.
2. The tobacco sheet turning device according to claim 1, wherein the first turning roller and the second turning roller are arranged above the conveying device in parallel, the first turning roller adsorbs the upper surface of the tobacco sheet conveyed to the lower side of the first turning roller and rotates to the position adjacent to the second turning roller to release, and the second turning roller adsorbs the lower surface of the tobacco sheet released by the first turning roller and rotates to the conveying device to release the tobacco sheet.
3. A smoke sheet turning device according to claim 2 wherein the first turning roller and the second turning roller are rotated in opposite directions and at the same rotational speed.
4. A smoke sheet turning device according to claim 3 wherein the diameter of the circumferential working surface of the first turning roller is less than or equal to the diameter of the circumferential working surface of the second turning roller.
5. A smoke sheet inverting apparatus as defined in any one of claims 1 to 4 wherein the conveyor means comprises a conveyor belt carrying and conveying the smoke sheet, the conveyor belt conveying the smoke sheet to the first inverting roller and receiving and conveying the smoke sheet released by the second inverting roller.
6. The smoke sheet turning device of claim 5 wherein the axes of the first turning roller and the second turning roller are parallel to the conveyor belt.
7. The smoke sheet turning device as defined in claim 6, wherein the conveying speed of the conveying belt is the same as the rotation speeds of the first turning roller and the second turning roller.
8. A smoke sheet turning device according to claim 7, wherein the conveying speed of the conveying belt is between 1m/s and 5 m/s.
9. The tobacco flake turning device of claim 1, wherein a pressure cavity is formed between the rotating shaft of the turning roller and the circumferential working surface, the pressure cavity comprises a negative pressure cavity and a positive pressure cavity, the circumferential working surface rotates to the negative pressure cavity to form a negative pressure surface, and rotates to the positive pressure cavity to form a positive pressure surface.
10. A smoke sheet turning device according to claim 9, wherein the positive pressure chamber is provided with pressure by compressed air or a blower device and the negative pressure chamber is provided with negative pressure by a high pressure fan or an air suction device.
11. The tobacco flake turning device of claim 10, wherein the pressure of the positive pressure cavity is greater than or equal to 0MPa and less than or equal to 0.5MPa, and the pressure of the negative pressure cavity is greater than or equal to-1 MPa and less than 0MPa.
12. The tobacco flake turning device of claim 9, wherein the circumferential working surface is provided with a plurality of ventilation holes, the negative pressure surface forms negative pressure attraction force on the tobacco flake through the ventilation holes, and the positive pressure surface prevents the tobacco flake from being adsorbed through the ventilation holes.
13. The smoke sheet turning device of claim 12 wherein said holes are evenly distributed on the circumferential working surface.
14. A smoke sheet turnover device according to claim 13 and wherein said ventilation holes have a pore size of between 0.5mm and 10mm and a pore spacing of between 2mm and 100 mm.
15. The tobacco flake turning device of claim 9, wherein the turning roller further comprises two baffles connecting the rotating shaft and the circumferential working surface, the baffles dividing the pressure cavity into a negative pressure cavity and a positive pressure cavity, and the negative pressure cavity and the positive pressure cavity are sealed with each other.
16. A smoke sheet turning device according to claim 15 wherein the baffle is connected to the axis of rotation and the circumferential working surface in the radial direction of the turning roll.
17. A smoke sheet turning device according to claim 15 or 16 wherein the pressure in the pressure cavity adjacent the first turning roller is opposite to the pressure in the pressure cavity adjacent the second turning roller.
18. The smoke sheet turning device of claim 17 wherein the first turning roll transitions from a negative pressure chamber to a positive pressure chamber in a counter-clockwise direction adjacent the two turning rolls and the second turning roll transitions from a positive pressure chamber to a negative pressure chamber in a clockwise direction adjacent the two turning rolls.
19. The smoke sheet turning device of claim 18 wherein the pressure cavity of the first turning roller near the conveyor is a negative pressure cavity and the pressure cavity of the second turning roller near the conveyor is a positive pressure cavity.
20. The smoke sheet turning device of claim 19 wherein the negative pressure chamber of the first turning roller intersects the negative pressure chamber portion of the second turning roller below the plane through which the axes of the two turning rollers pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910339939.3A CN111847027B (en) | 2019-04-25 | 2019-04-25 | Tobacco flake turn-over device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910339939.3A CN111847027B (en) | 2019-04-25 | 2019-04-25 | Tobacco flake turn-over device |
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| CN111847027A CN111847027A (en) | 2020-10-30 |
| CN111847027B true CN111847027B (en) | 2024-05-17 |
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| CN201910339939.3A Active CN111847027B (en) | 2019-04-25 | 2019-04-25 | Tobacco flake turn-over device |
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| CN112205662B (en) * | 2020-11-20 | 2022-06-21 | 河南中烟工业有限责任公司 | Slice slitting system for heating cigarettes |
| CN112754056A (en) * | 2021-01-19 | 2021-05-07 | 戈智硕 | Tobacco shred feeding mechanism for cigarette packaging machine |
Citations (8)
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| CN210029359U (en) * | 2019-04-25 | 2020-02-07 | 秦皇岛烟草机械有限责任公司 | Tobacco flake turning device |
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| ITMI20011800A1 (en) * | 2001-08-17 | 2003-02-17 | Studio Design S A S Di Stefano | MACHINE FOR THE PRODUCTION OF FLEXIBLE SHEET MATERIAL |
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| GB392102A (en) * | 1931-12-02 | 1933-05-11 | Neuerburgsche Verwaltungsges | Process and apparatus for the automatic supply of cigarettes from the delivery member of a cigarette making machine to a balance |
| JPH09288061A (en) * | 1996-04-19 | 1997-11-04 | Ikegami Tsushinki Co Ltd | Method and apparatus for inspecting external appearance of small article |
| DE19940214A1 (en) * | 1998-03-28 | 2001-03-01 | Koenig & Bauer Ag | Sheet guide blade for printing machines has rear end part as suction belt or rollers powered in sheet direction and front blade part pointed. |
| JP2001095550A (en) * | 1999-07-27 | 2001-04-10 | Japan Tobacco Inc | Apparatus for opening tobacco raw material lump feed system of tobacco raw material equipped with the apparatus |
| CN106364877A (en) * | 2016-08-30 | 2017-02-01 | 贵州凯吉通医药包装机械有限公司 | Turnover belt conveying equipment |
| CN206497033U (en) * | 2017-02-28 | 2017-09-15 | 红塔烟草(集团)有限责任公司 | A kind of hand picking smoked sheet conveyer belt |
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|---|---|
| CN111847027A (en) | 2020-10-30 |
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