CN115633797A - Tobacco shred impurity removal system, tobacco production system and tobacco shred impurity removal method - Google Patents

Abstract

The application relates to a tobacco shred impurity removal system, a tobacco production system and a tobacco shred impurity removal method. The tobacco shred impurity removing system comprises: the conveying mechanism is used for conveying the cut tobacco; the sundries recognition device is arranged on the conveying path of the conveying mechanism and is used for detecting sundries in the tobacco shreds on the conveying mechanism; and the rejecting mechanism is arranged at the downstream of the conveying mechanism along the conveying direction of the conveying mechanism and comprises a material blocking part, a first hopper and a second hopper, the material blocking part is coupled with the sundry recognition device and moves between a material passing position and a material blocking position according to the detection result of the sundry recognition device, when sundries are not detected by the sundry recognition device, the material blocking part is in the material passing position, the cut tobacco conveyed by the conveying mechanism falls into the first hopper, and when the sundry recognition device detects the sundries, the material blocking part moves to the material blocking position to guide the cut tobacco conveyed by the conveying mechanism and containing the sundries to fall into the second hopper. Based on this, the sundries in the tobacco shreds can be effectively removed.

Description

Tobacco shred impurity removal system, tobacco production system and tobacco shred impurity removal method

Technical Field

The application relates to the technical field of tobacco shred impurity removal, in particular to a tobacco shred impurity removal system, a tobacco production system and a tobacco shred impurity removal method.

Background

In the tobacco shred making process, impurities in tobacco materials are generally required to be removed, so that the purity of tobacco shreds is improved, the quality of cigarette products is improved, and the smoking experience is improved.

However, how to effectively remove impurities in the cut tobacco is a difficult problem.

Disclosure of Invention

The application aims to provide a tobacco shred impurity removal system, a tobacco production system and a tobacco shred impurity removal method so as to effectively remove impurities in tobacco shreds.

In order to achieve the above object, the present application provides a tobacco shred impurity removing system, including:

the conveying mechanism is used for conveying the cut tobacco;

the sundries recognition device is arranged on the conveying path of the conveying mechanism and is used for detecting sundries in the tobacco shreds on the conveying mechanism; and

the rejecting mechanism is arranged at the downstream of the conveying mechanism along the conveying direction of the conveying mechanism and comprises a material blocking part, a first hopper and a second hopper, the material blocking part is coupled with the sundry recognition device and moves between a material passing position and a material blocking position according to the detection result of the sundry recognition device, when sundries are not detected by the sundry recognition device, the material blocking part is in the material passing position, tobacco shreds conveyed by the conveying mechanism fall into the first hopper, and when the sundry recognition device detects the sundries, the material blocking part moves to the material blocking position to guide the tobacco shreds containing the sundries conveyed by the conveying mechanism to fall into the second hopper.

In some embodiments, the rejecting mechanism comprises at least two material blocking pieces, the at least two material blocking pieces are arranged side by side along a transverse direction intersecting with the tobacco shred conveying direction, when the sundries are not detected by the sundries recognition device, the at least two material blocking pieces are both in a material passing position, and when the sundries are detected by the sundries recognition device, at least one of the at least two material blocking pieces moves to the material blocking position.

In some embodiments, after the sundries are detected by the sundries recognition device, only the material blocking member which covers the sundries position in the transverse direction in the at least two material blocking members moves to the material blocking position, or the material blocking member which covers the sundries position in the transverse direction in the at least two material blocking members and the material blocking member which is adjacent to the material blocking member which covers the sundries position in the transverse direction move to the material blocking position together.

In some embodiments, the material blocking member swings between the material passing position and the material blocking position according to the detection result of the impurity identification device.

In some embodiments, the rejecting mechanism comprises a driving mechanism, the driving mechanism is in driving connection with the material blocking part and drives the material blocking part to move between the material passing position and the material blocking position.

In some embodiments, the rejecting mechanism comprises at least two driving mechanisms, and the at least two driving mechanisms are in one-to-one driving connection with the at least two material blocking pieces of the rejecting mechanism.

In some embodiments, the tobacco shred impurity removing system comprises a controller, the controller is in signal connection with the impurity recognition device, and controls the material blocking piece to move between the material passing position and the material blocking position according to the detection result of the impurity recognition device.

In some embodiments, the tobacco shred removal system is configured to at least one of:

the conveying speed of the conveying mechanism is adjustable;

the sundry identification device comprises a spectral imaging sundry identification device or a machine vision image sundry identification device;

the material blocking piece comprises a material blocking plate.

In some embodiments, the tobacco shred impurity removal system comprises at least one of:

the receiving device is communicated with the second hopper and is used for receiving the tobacco shreds containing the impurities and falling from the second hopper;

the discharging mechanism is communicated with the first hopper and is used for conveying the cut tobacco fallen from the first hopper to the downstream;

the material homogenizing mechanism is positioned on the conveying path of the conveying mechanism and is used for homogenizing the cut tobacco on the conveying mechanism;

and the vibration groove is arranged at the upstream of the conveying mechanism along the conveying direction of the conveying mechanism so as to realize vibration conveying of the cut tobacco to the conveying mechanism.

In addition, the tobacco production system that this application provided, including filament cutter and the pipe tobacco edulcoration system of this application any embodiment, pipe tobacco edulcoration system sets up in the low reaches of filament cutter, and the pipe tobacco that receives the filament cutter and cut to carry out the edulcoration to the pipe tobacco that the filament cutter cut.

In addition, based on pipe tobacco edulcoration system of any embodiment of this application, this application provides a pipe tobacco edulcoration method, and it includes:

judging whether the sundries recognition device detects that the cut tobacco on the conveying mechanism contains sundries or not;

if the sundries recognition device detects that the cut tobacco on the conveying mechanism does not contain sundries, the material blocking part is located at the material passing position, so that the cut tobacco conveyed by the conveying mechanism falls into the first hopper;

if the sundries are detected to be contained in the cut tobacco on the conveying mechanism by the sundries recognition device, the material blocking part moves to the material blocking position to guide the cut tobacco containing the sundries conveyed by the conveying mechanism to fall into the second hopper.

In some embodiments, if the sundries are detected to be contained in the cut tobacco on the conveying mechanism by the sundries recognition device, the step of moving the material blocking member to the material blocking position comprises the following steps:

when the sundries recognition device detects that the cut tobacco on the conveying mechanism contains sundries, the position information of the sundries is determined, and the material blocking member is moved to the material blocking position according to the determined position information of the sundries.

In some embodiments, determining the position information of the sundries, and moving the material blocking member to the material blocking position according to the determined position information of the sundries comprises:

determining position information of the sundries in the conveying direction;

determining the delay time of the material blocking member for performing material blocking action according to the position information of the sundries in the conveying direction;

and when the time delay time of the sundries is detected from the sundry recognition device, the material blocking part moves to the material blocking position.

In some embodiments, determining the position information of the sundries, and moving the material blocking member to the material blocking position according to the determined position information of the sundries comprises:

determining position information of the sundries in a transverse direction intersecting with the conveying direction;

and determining the material blocking piece which needs to move to the material blocking position according to the position information of the sundries in the transverse direction.

In some embodiments, the determining the material blocking member which needs to move to the material blocking position according to the position information of the sundries in the transverse direction includes:

according to the position information of the sundries in the transverse direction, only the material blocking member covering the sundries in the transverse direction is determined as the material blocking member needing to move to the material blocking position; or,

according to the position information of the sundries in the transverse direction, the material blocking member covering the sundries position in the transverse direction and the material blocking member adjacent to the material blocking member covering the sundries position in the transverse direction are determined as the material blocking members needing to move to the material blocking position.

The application provides a pipe tobacco edulcoration system can adopt the guide shunting mode to get rid of the debris in the pipe tobacco, can effectively get rid of the debris in the pipe tobacco.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic diagram of a tobacco production system according to an embodiment of the present application.

FIG. 2 is a schematic diagram of a tobacco shred impurity removal system in an embodiment of the application.

Fig. 3 is a first structural schematic diagram of the stock stop in the embodiment of the present application.

Fig. 4 is a second structural schematic diagram of the stock stop in the embodiment of the present application.

Fig. 5 is a schematic layout view of a flow guide member on a vibration groove in an embodiment of the present application.

Description of reference numerals:

100. a tobacco production system; 10. A tobacco shred impurity removal system; 20. A filament cutter;

1. vibrating a tank; 11. A flow guide member;

2. a material homogenizing mechanism;

3. a conveying mechanism;

4. a sundry identification device;

5. a rejection mechanism; 51. a first hopper; 52. a second hopper; 53. a stock stop mechanism; 54. a material blocking part; 55. a striker plate; 56. a drive mechanism; 57. a driving cylinder; 58. a rotating shaft;

6. a controller;

7. a discharging mechanism;

8. a receiving device;

l, conveying direction; w, transverse direction.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present disclosure.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In the description of the present application, it should be understood that the terms "first", "second", etc. are used to define the components, and are used only for the convenience of distinguishing the corresponding components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present application.

In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

The purity of the cut tobacco is an important control index in the tobacco shredding process, is directly related to the sensory quality of cigarette products and the smoking experience of consumers, and is an important ring for building the brand image of cigarettes.

Because the tobacco leaves are typical agricultural and sideline products, the processing and treating processes are multiple, the upstream treating process is simple and extensive, and various impurities such as hemp ropes, weeds, chicken duck feathers, adhesive tapes, leatheroid and the like are easily mixed in the tobacco leaves, whether the impurities can be effectively removed in the tobacco shred manufacturing process is a main challenge of whether the purity of the tobacco shreds can be improved.

Generally, in the tobacco shred manufacturing process, impurity removal equipment is mainly configured between the loosening and moisture regaining of the leaves and the screening and feeding processes, and the identification and removal of impurities (such as caking, hemp or foreign matters) in the tobacco shreds are realized by using technologies such as image identification and laser impurity removal, so that the impurities in the tobacco shreds are removed, and the purity of the tobacco shreds is improved. However, the impurity identification rate of the impurity removing equipment in the tobacco sheet production link is only about 90%, a considerable part of impurities are difficult to identify, and the removed objects of the tobacco sheet impurity removing equipment still need to be manually selected, so that the impurities and the tobacco sheets are difficult to be completely identified and separated, and the impurities can inevitably enter subsequent process links such as shredding, tobacco drying and the like.

Therefore, if the impurity removal means of the subsequent procedures of the tobacco sheet processing is lacked, and the impurity removal equipment in the tobacco sheet link is only relied on, the impurities in the tobacco shreds are difficult to be effectively removed, and the further improvement of the purity of the tobacco shreds is influenced.

In view of the above situation, in some related technologies, a shredding operator is used to identify shredded impurities in a subsequent process of sheet tobacco processing, and in such a situation, the shredding operator monitors the shredded impurities on line, so that the identification efficiency is low and the personnel are prone to fatigue, and therefore, the accuracy and the sufficiency of impurity identification are seriously insufficient.

In other related technologies, a turning plate is arranged in a production link after shredding, and whether the cut tobacco containing impurities is removed or not is controlled by controlling the turning plate to be opened and closed. During operation, if sundries are found in cut tobacco, the turning plate is opened, so that the sundries-containing cut tobacco in a certain range falls down, and the integral removal of the sundries-containing cut tobacco is realized. And after the removal is finished, the turning plate is closed again to realize the normal conveying of the cut tobacco.

By adopting the flap impurity removal mode, the purity of cut tobacco after shredding can be improved to a certain degree, but certain problems still exist.

For example, when the flap impurity removal mode after shredding is adopted, the problem of tobacco shred jamming exists. Specifically, when turning over the board and opening the back and reclose again, because the pipe tobacco of upper reaches constantly gets into, turn over the board and inevitably have the pipe tobacco to press from both sides the stopper with the cell body junction, consequently, can lead to leaking the material scheduling problem, influence the edulcoration effect.

For another example, when the flap impurity removal mode after shredding is adopted, the impurity removal accuracy is low. Specifically, when the turnover plate is opened to remove the tobacco shreds containing impurities, the removal amount of the tobacco shreds is large, the difficulty in quickly picking out the impurities is large, and the impurities are difficult to completely remove.

In order to improve the tobacco shred impurity removal effect, the tobacco shred impurity removal system, the tobacco production system and the tobacco shred impurity removal method are provided.

Fig. 1 to 5 schematically show the structures of a tobacco production system and a tobacco shred impurity removal system according to the present application.

For ease of understanding, the tobacco production system shown in FIG. 1 will first be described.

Referring to fig. 1, in the present application, a tobacco production system 100 includes a tobacco shred removal system 10 and a tobacco cutter 20. The tobacco cutter 20 is used to cut tobacco leaves into cut tobacco. The tobacco shred impurity removing system 10 is disposed downstream of the tobacco cutter 20, and receives the tobacco shreds cut by the tobacco cutter 20 to remove impurities from the tobacco shreds cut by the tobacco cutter 20.

Because pipe tobacco edulcoration system 10 sets up in filament cutter 20 low reaches, consequently, can form the replenishment to piece cigarette edulcoration equipment, effectively rejects the debris that is not discerned and rejects in the piece cigarette processing link, moreover, pipe tobacco edulcoration system 10 also can discern the rejection to the debris that blade and leaf silk technology link sneaked into, consequently, compare in the condition that relies on piece cigarette link edulcoration equipment to carry out the edulcoration alone, can get rid of the debris in the pipe tobacco effectively, realize the effective promotion of pipe tobacco purity.

The structure of the tobacco shred impurity removal system 10 is further illustrated in fig. 2-5.

Referring to fig. 2 to 5, in the present application, the tobacco shred impurity removing system 10 includes a conveying mechanism 3, an impurity identifying device 4 and a removing mechanism 5. The conveying mechanism 3 is used for conveying tobacco shreds. The foreign matter recognition device 4 is provided on the conveying path of the conveying mechanism 3, and detects foreign matters in the tobacco shreds on the conveying mechanism 3. The rejecting mechanism 5 is disposed downstream of the conveying mechanism 3 in the conveying direction L of the conveying mechanism 3, and includes a material blocking member 54, a first hopper 51, and a second hopper 52. The material blocking piece 54 is coupled with the sundry recognition device 4 and moves between a material passing position and a material blocking position according to the detection result of the sundry recognition device 4. When the sundries are not detected by the sundries recognition device 4, the material blocking member 54 is in the material passing position, so that the cut tobacco conveyed by the conveying mechanism 3 falls into the first hopper 51. When the sundries are detected by the sundries recognition device 4, the material blocking member 54 moves to the material blocking position to guide the cut tobacco containing the sundries conveyed by the conveying mechanism 3 to fall into the second hopper 52.

In the above arrangement, the material blocking part 54 of the removing mechanism 5 can switch between the material passing position and the material blocking position to meet different requirements when no sundries are found and when sundries are found, so that the cut tobaccos without sundries enter the first hopper 51 and the second hopper 52 respectively, the cut tobaccos without sundries are effectively separated, and impurities are effectively removed.

Wherein, keeping off material 54 and adopting the guide shunting edulcoration mode to carry out the edulcoration, be difficult to the clamp stopper pipe tobacco, consequently, compare with the condition that adopts the edulcoration of turning over the board among the correlation technique, can effectively reduce pipe tobacco and press from both sides the stopper risk, can thoroughly eliminate pipe tobacco and press from both sides the stopper phenomenon even, and then avoid leaking the circumstances such as material, improve the edulcoration effect. Meanwhile, the material blocking piece 54 removes the impurities in a guiding and shunting type impurity removing mode, so that the tobacco shred removing amount is reduced, the impurity picking difficulty is reduced, and the impurity removing accuracy is improved compared with the condition of removing impurities by turning plates in the related technology.

Moreover, in the above arrangement, the removing mechanism 5 can automatically identify the sundries in the cut tobacco, and the removing mechanism 5 can automatically remove the sundries-containing cut tobacco, so that the cut tobacco impurity removing system 10 can effectively identify and remove the sundries in the cut tobacco without much relying on the online identification and removal of workers, and therefore, compared with the condition that the sundries after being cut are identified online by the cutting workers, the manual auxiliary workload can be effectively reduced, and the identification and removal accuracy is improved.

Therefore, the tobacco shred impurity removing system 10 can accurately identify and remove impurities under the conditions of less manual auxiliary amount and lower risk of tobacco shred jamming, so that the problems of large manual auxiliary workload, low identification and removal accuracy, tobacco shred jamming and the like in the related technology are effectively solved, the impurity removing effect is improved, the impurity prevention and control level after shredding is improved, and the tobacco shred purity and the product process quality are further improved.

In order to facilitate the material blocking member 54 to switch between the material passing position and the material blocking position, referring to fig. 2, in some embodiments, the rejecting mechanism 5 includes a driving mechanism 56, and the driving mechanism 56 is in driving connection with the material blocking member 54 and drives the material blocking member 54 to move between the material passing position and the material blocking position. Thus, the material blocking part 54 can be automatically switched between the material passing position and the material blocking position under the driving of the driving mechanism 56, and the device is simple and convenient and has high accuracy.

In the rejecting mechanism 5, the number of the stoppers 54 may be one, two, or more. Wherein, when the quantity of keeping off material 54 is two at least, can control the pipe tobacco and reject the scope through the position and the quantity of keeping off material 54 of control motion to keeping off the material position, consequently, more be favorable to improving the edulcoration flexibility to promote debris and reject the accuracy.

By way of example, with reference to fig. 3 and 4, in some embodiments, the rejecting mechanism 5 includes at least two blocking members 54, the at least two blocking members 54 are arranged side by side along a transverse direction W intersecting the tobacco shred conveying direction L, the at least two blocking members 54 are both in the material passing position when no foreign object is detected by the foreign object identifying device 4, and at least one of the at least two blocking members 54 moves to the blocking position when a foreign object is detected by the foreign object identifying device 4.

In the above arrangement, since all the blocking pieces 54 of the tobacco shred impurity removing system 10 are in the material passing position when the impurity identifying device 4 does not detect impurities, all the blocking pieces 54 do not block the conveying path between the conveying mechanism 3 and the first hopper 51, and the tobacco shreds can smoothly fall into the first hopper 51 and normally circulate to the downstream process. It can be seen that the arrangement of at least two retaining members 54 does not affect the normal transport of the cut tobacco.

In addition, under the condition that the sundries are detected by the sundries recognition device 4, at least one material blocking piece 54 of the cut tobacco impurity removing system 10 moves to a material blocking position, a material at a corresponding position is blocked towards a traveling path of the first hopper 51, and the impurity-containing cut tobacco at the corresponding position is guided to the second hopper 52, so that smooth impurity removal can be realized.

Moreover, because pipe tobacco edulcoration system 10 includes two at least fender material 54 that arrange side by side along horizontal W, every keeps off material 54 and corresponds different horizontal position and horizontal scope, consequently, when at least one fender material 54 of control pipe tobacco edulcoration system 10 moves towards keeping off the material position, can be according to the edulcoration demand of difference, for example the difference of debris place horizontal position, and the difference of the meticulous degree of edulcoration, select different horizontal positions and/or the material that keeps off of different quantity 54 towards keeping off the material position motion, carry out and keep off the material action, realize more accurate and more nimble debris rejection process.

For example, after the sundries are detected by the sundry recognition device 4, if the tolerance to the sundries is low, and a more accurate sundry removal process is desired to be implemented, only the material blocking piece 54 covering the sundry position on the transverse direction W can be selected to perform a material blocking action, that is, the material blocking piece 54 only covering the sundry position on the transverse direction W among all the material blocking pieces 54 of the cut tobacco impurity removal system 10 is moved to a material blocking position, so that only the part of cut tobacco corresponding to the transverse position of the sundries is guided to the second hopper 52, and the cut tobacco containing the sundries is removed as accurately as possible, thereby implementing an accurate removal mode.

For another example, after the impurity recognition device 4 detects impurities, if tolerance to impurities is high, the blocking member 54 covering the impurity position on the transverse W may be selected to perform blocking operation, and meanwhile, the blocking member 54 adjacent to the blocking member 54 covering the impurity position on the transverse W may also be selected to perform blocking operation together, so that, among all the blocking members 54 of the tobacco shred impurity removing system 10, the blocking member 54 covering the impurity position on the transverse W and the blocking member 54 adjacent to the blocking member 54 covering the impurity position on the transverse W move together to the blocking position, so as to expand the removal range of the tobacco shreds containing impurities as much as possible, reduce difficulty in removing impurities, and implement an expanded removal mode.

Therefore, based on the at least two material blocking pieces 54 arranged side by side along the transverse direction W, flexible application of different impurity removal modes such as a precise removal mode and an enlarged removal mode can be realized, and flexible adjustment of the removal amount of the impurity-containing cut tobacco under different prevention and control strategies can be conveniently realized according to actual process requirements.

Moreover, no matter in the accurate rejection mode or the enlarged rejection mode, at least the material blocking piece 54 with the transverse position corresponding to the sundries executes material blocking action, so that at least the part of the cut tobacco containing the sundries can be accurately rejected, the sundries are prevented from being omitted, and the rejection accuracy is high. Meanwhile, in the working process of the tobacco shred impurity removing system 10, the impurity-containing tobacco shreds at any transverse distribution position can be accurately removed by selecting the material blocking piece 54 corresponding to impurities at different transverse positions, and the situation that impurities at certain transverse positions cannot be removed is prevented, so that the impurity removing accuracy can be effectively improved.

Referring to fig. 3, when the removing mechanism 5 includes at least two material blocking members 54, the removing mechanism 5 may include at least two driving mechanisms 56, and the at least two driving mechanisms 56 are in one-to-one driving connection with all the material blocking members 54 of the removing mechanism 5, so that each material blocking member 54 is equipped with one driving mechanism 56, so as to independently control the precise movement of each material blocking member 54, reduce the removing amount of the cut tobacco, and improve the accuracy of impurity removal.

In the foregoing embodiments, the operation of the material blocking member 54 may be performed under the control of the controller 6 of the tobacco shred impurity removing system 10. Referring to fig. 1, in some embodiments, the controller 6 is in signal connection with the sundry identification device 4, and controls the blocking member 54 to move between the material passing position and the material blocking position according to the detection result of the sundry identification device 4. At this time, the material blocking member 54 is coupled with the sundry identification device 4 through the controller 6, and can automatically act according to the sundry detection result under the control of the controller 6.

The cut tobacco removal system 10 shown in fig. 2-5 will be further described.

As shown in fig. 2 to 5, in this embodiment, the cut tobacco impurity removing system 10 is disposed downstream of the tobacco cutter 20, and includes a vibrating trough 1, a refining mechanism 2, a conveying mechanism 3, an impurity identifying device 4, a rejecting mechanism 5, a controller 6, a discharging mechanism 7, and a receiving device 8.

The vibration groove 1 is used for realizing the circulation of the cut tobacco from the tobacco cutter 20 to the conveying mechanism 3, and is arranged at the upstream of the conveying mechanism 3 along the conveying direction L of the conveying mechanism 3 so as to realize the vibration conveying of the cut tobacco to the conveying mechanism 3. The vibration groove 1 receives the cut tobacco produced by the tobacco cutter 20 and conveys the cut tobacco to the conveying mechanism 3 in the vibration process. Under the vibration effect of the vibration groove 1, the cut tobacco can be uniformly spread out, so that the cut tobacco arriving at the conveying mechanism 3 is uniformly distributed, the sundries in the cut tobacco can be conveniently detected by the sundry recognition device 4, and the sundry recognition accuracy is favorably improved. As shown in fig. 1, in this embodiment, the vibrating groove 1 is arranged obliquely. As shown in fig. 5, in this embodiment, a flow guide member 11 is provided on the groove surface of the vibration groove 1. The flow guide member 11 is in a V shape, a diamond shape or a triangle shape. In the embodiment, the flow guiding members 11 with different shapes are distributed on the vibration tank 1 and are located at different length positions of the vibration tank 1. Therefore, the distribution uniformity of the cut tobacco can be further improved, and the impurity identification accuracy is further improved.

The conveying mechanism 3 is used for receiving the cut tobacco conveyed by the vibrating groove 1 and conveying the cut tobacco to the downstream. In this embodiment, the conveying mechanism 3 is a belt conveyor, which is horizontally arranged such that the conveying direction L is along the horizontal direction. In the conveying direction L, the incoming side is upstream and the outgoing side is downstream. In this embodiment, the conveying belt of the conveying mechanism 3 is driven by a motor, and the rotating speed of the motor is adjusted by a frequency converter, so that the conveying mechanism 3 has a frequency conversion speed regulation function, and the conveying speed is adjustable, and thus, the conveying speed of the conveying mechanism 3 can be adjusted according to different requirements, so that the conveying mechanism 3 can be well matched with the sundry identification device 4, and the sundry identification device 4 can detect and identify sundries more accurately.

The material homogenizing mechanism 2 is positioned on the conveying path of the conveying mechanism 3 and is used for homogenizing the cut tobacco on the conveying mechanism 3. The thickness of the layer of shredded tobacco travelling on the conveyor mechanism 3 can be limited to a suitable range by the refining mechanism 2. Specifically, in this embodiment, the material homogenizing mechanism 2 is disposed on the conveying mechanism 3, and is a poking roller type material homogenizing device, which utilizes poking teeth on the poking roller to poke the cut tobacco, so as to flatten and thin the cut tobacco on the conveying mechanism 3, which is also beneficial for the sundries recognition device 4 to accurately recognize the sundries in the cut tobacco, and improves the sundries recognition accuracy. In addition, in the embodiment, the working height of the poking roller of the material homogenizing mechanism 2 is adjustable, so that the thickness of the material layer on the conveying mechanism 3 can be flexibly adjusted, and different conveying requirements and sundries identification requirements can be met.

The sundries recognition device 4 is arranged on a conveying path of the conveying mechanism 3 and is used for detecting sundries in tobacco shreds on the conveying mechanism 3, including detecting whether the sundries exist and detecting positions of the sundries (including positions of the sundries in the conveying direction L and positions of the sundries in the transverse direction W). As shown in fig. 1, in this embodiment, the sundries recognition device 4 is erected above the conveying mechanism 3 and located between two ends of the conveying mechanism 3 in the conveying direction L, so as to recognize and detect sundries in the cut tobacco during the conveying process of the conveying mechanism 3. Specifically, in this embodiment, the impurity identifying device 4 includes a spectral imaging impurity identifying device or a machine vision image impurity identifying device to accurately identify impurities in the cut tobacco by using a spectral imaging identifying technology or a machine vision image identifying technology.

The rejecting mechanism 5 is arranged at the downstream of the conveying mechanism 3 and used for shunting the non-impurity-containing cut tobacco and the impurity-containing cut tobacco and shunting the non-impurity-containing cut tobacco and the impurity-containing cut tobacco to the discharging mechanism 7 and the receiving device 8 respectively so as to achieve the purpose of removing impurities. As shown in fig. 2 to 4, in this embodiment, the rejecting mechanism 5 includes a first hopper 51, a second hopper 52, and a stock stop 53. The first hopper 51 and the second hopper 52 are each located below the conveying mechanism 3 in the height direction and are used for receiving non-impurity-containing shredded tobacco and impurity-containing shredded tobacco, respectively. The material blocking mechanism 53 is arranged above the first hopper 51 and the second hopper 52, and realizes the shunting of the impurity-containing and non-impurity-containing cut tobaccos by controlling whether to block the conveying path between the conveying mechanism 3 and the first hopper 51 and whether to guide the cut tobaccos to the second hopper 52.

As shown in fig. 2, in this embodiment, the first hopper 51 is arranged downstream of the conveying mechanism 3 and is configured to drop the cut tobacco conveyed by the conveying mechanism 3 into the first hopper 51 from the conveying mechanism 3 by inertia when the conveying path between the conveying mechanism 3 and the first hopper 51 is not blocked by the stopper mechanism 53.

A discharge mechanism 7 is arranged at the discharge outlet of the first hopper 51. The discharging mechanism 7 is communicated with the first hopper 51 and is used for conveying the cut tobacco fallen from the first hopper 51 to the downstream, so that the cut tobacco without impurities can be normally conveyed to the subsequent production link.

The second hopper 52 is arranged downstream of the conveyor 3 and upstream of the first hopper 51, with the second hopper 52 and the first hopper 51 being arranged in succession along the conveying direction L, i.e. with the second hopper 52 closer to the outfeed end of the conveyor 3 relative to the first hopper 51 in the conveying direction L.

The discharge opening of the second hopper 52 is provided with a receiving device 8. The receiving device 8 is communicated with the second hopper 52 and is used for receiving the impurity-containing cut tobacco falling from the second hopper 52 so as to store the rejected impurity-containing cut tobacco and facilitate the subsequent separation of the cut tobacco and impurities in the impurity-containing cut tobacco.

In order to realize the split guide function of the striker 53, as shown in fig. 3 and 4, in this embodiment, the striker 53 includes a rotating shaft 58, a striker plate 55 serving as the striker 44, and a driving cylinder 57 (air cylinder, oil cylinder, or electric cylinder) serving as the driving mechanism 56. The plurality of striker plates 55 are arranged side by side in a lateral direction W perpendicular to the conveying direction L, and all the striker plates 55 are rotatably connected to the rotating shaft 58. Each striker plate 55 is in driving connection with one driving cylinder 57 respectively, so as to swing around the rotating shaft 58 under the driving of the corresponding driving cylinder 57 respectively, and the switching between the material passing position and the material blocking position is realized. In this manner, each striker plate 55 can move between the passing position and the striker position by swinging independently of each other. When the tobacco shred conveying mechanism is located at the material passing position, the flow direction of the tobacco shreds flowing out of the conveying mechanism 3 cannot be disturbed by each material baffle 55, and the tobacco shreds are not guided into the second hopper 52, so that the tobacco shreds flowing out of the conveying mechanism 3 can fall into the first hopper 51 under the action of inertia. And when the tobacco shred blocking device is located at the material blocking position, the material blocking plate 55 can block the conveying path between the conveying mechanism 3 and the first hopper 51 in the corresponding transverse range, and guide the tobacco shreds in the corresponding transverse range to the second hopper 52.

The actions of the mechanisms in the tobacco shred impurity removing system 10 are all performed under the control of the controller 6. The controller 6 is in signal connection with the sundries recognition device 4 and is in signal connection with the driving cylinder 57, information interaction and linkage control of the sundries recognition device 4 and the material blocking mechanism 53 are achieved, the material blocking plate 55 used as the material blocking piece 54 is controlled to swing between the material passing position and the material blocking position by controlling the driving cylinder 57 used as the driving mechanism 56 to move according to the detection result of the sundries recognition device 4, and whether the removing mechanism 5 removes impurities or not and a specific impurity removing mode during impurity removing are controlled by controlling the material blocking plate 55 to swing between the material passing position and the material blocking position according to the detection result of the sundries recognition device 4.

The tobacco shred impurity removing system 10 of the embodiment can realize a normal material passing mode and an impurity removing mode.

And the normal material passing mode is an operation mode which directly conveys the cut tobacco to a downstream production link without removing impurities. When being in normal punishment mode, all driving cylinders 57 are all not moved, and all striker plates 55 are all packed up in the punishment in advance position, and at this moment, because inertia, the pipe tobacco can directly fall to discharge mechanism 7 from conveying mechanism 3 through first hopper 51 on, reentrant low reaches production process.

The impurity removing mode is an operation mode for distributing the impurity-containing tobacco shreds to the second hopper 52 to remove impurities. The operation process of the sundries removing mode is approximately as follows:

when the sundries are detected by the sundries recognition device 4, transmitting position information of the sundries to the controller 6, wherein the position information of the sundries comprises longitudinal position information (position information in the conveying direction L) and transverse position information (namely position information in the transverse direction W) of the sundries;

the controller 6 selects and determines the striker plate 55 which needs to move to the striker position from all the striker plates 55 according to the transverse position information of the sundries and executes the striker action;

the controller 6 determines the delay time of the material blocking plate 55 for performing the material blocking action according to the longitudinal position information of the sundries;

after the sundries are detected by the sundries recognition device 4 and the corresponding delay time is delayed, the controller 6 controls the striker plate 55 which is selected in advance and needs to execute the striker action to swing forwards and downwards to push out, executes the striker action, blocks the cut tobacco at the corresponding transverse position towards the advancing path of the first hopper 51, and guides the cut tobacco at the corresponding transverse position to the second hopper 52;

the material blocking plate 55 performs material blocking action for a certain time, returns to the material passing position after impurity-contained cut tobacco is removed, and enters a normal material passing mode.

In the operation process of the sundries removing mode, the sundries removing mode can be further divided into a precise removing mode and an enlarged removing mode according to the difference of the selected material baffle plate 55 for executing the material blocking action.

The accurate removing mode is a sundry removing mode in which only the material baffle plate 55 which just covers the sundry position on the transverse direction W is selected to perform the material stopping action. In the accurate removing mode, when the sundries are detected by the sundries recognition device 4, the controller 6 only selects the material blocking plate 55 which transversely just covers the sundries position to execute material blocking action, so that the sundry-contained tobacco shreds are removed as accurately as possible.

The enlarged rejecting mode is a sundry rejecting mode in which the material blocking plate 55 which just covers the sundry position on the transverse direction W and the material blocking plate 55 which is adjacent to the material blocking plate 55 which just covers the sundry position on the transverse direction W (for example, one, two or more material blocking plates 55 which are positioned on two sides of the material blocking plate 55 which just covers the sundry position on the transverse direction W) are simultaneously selected to perform material blocking actions. In the enlarged rejection mode, when the sundries are detected by the sundries recognition device 4, the controller 6 selects the material baffle plate 55 which transversely just covers the sundries position and the adjacent position to execute material baffle action so as to enlarge the rejection range of the sundry-containing cut tobacco as far as possible.

Therefore, the tobacco shred impurity removing system 10 can effectively solve the problems that tobacco impurities are difficult to identify after being shredded, the identifying and removing accuracy is low, the manual auxiliary workload is large, and a removing mechanism has tobacco shred clamping and plugging and the like, achieves the tobacco shred impurity removing process which is labor-saving, efficient, high in identifying and removing accuracy, free of risk of tobacco shred clamping and high in flexibility, and effectively improves the purity of tobacco shreds.

Specifically, the tobacco shred impurity removing system 10 of the embodiment has the following advantages:

(1) The system can supplement a tobacco flake impurity recognition system, effectively remove impurities which are not recognized and removed in a tobacco flake processing link and impurities mixed in a leaf blade and cut tobacco processing link;

(2) The accurate removal of the impurity-containing cut tobacco at any distribution position can be realized by independently controlling the accurate action of each material baffle 55 based on the impurity position information output by the impurity recognition device 4 and the controller 6, and the cut tobacco removal amount is effectively reduced;

(3) The method can realize flexible application of various removal modes, and is convenient for realizing flexible regulation and control of the removal amount of the impurity-containing tobacco shreds under different prevention and control strategies according to actual process requirements;

(4) And the guide type shunting measure is adopted to remove impurities, so that the tobacco shred jamming condition can be thoroughly eliminated, and the conditions of material leakage and the like are avoided.

Therefore, the tobacco shred impurity removing system 10 of the embodiment can effectively remove impurities in tobacco shreds, and is simple in structure, convenient to control and good in effect.

Based on the tobacco shred impurity removal system 10 of each embodiment, the application also provides a tobacco shred impurity removal method, which includes:

judging whether the sundries recognition device 4 detects that the cut tobacco on the conveying mechanism 3 contains sundries or not;

if the sundries recognition device 4 detects that the cut tobacco on the conveying mechanism 3 does not contain sundries, the material blocking part 54 is in the material passing position, so that the cut tobacco conveyed by the conveying mechanism 3 falls into the first hopper 51;

if the sundries identification device 4 detects that the cut tobacco on the conveying mechanism 3 contains sundries, the material blocking part 54 is moved to the material blocking position so as to guide the cut tobacco containing the sundries conveyed by the conveying mechanism 3 to fall into the second hopper 52.

Specifically, in some embodiments, if the foreign matter identification device 4 detects that the cut tobacco on the conveying mechanism 3 contains foreign matters, moving the blocking member 54 to the blocking position includes:

when the sundries recognition device 4 detects that the cut tobacco on the conveying mechanism 3 contains sundries, the position information of the sundries is determined, and the material blocking member 54 is moved to the material blocking position according to the determined position information of the sundries.

More specifically, in some embodiments, determining the position information of the sundries, and moving the material blocking member 54 to the material blocking position according to the determined position information of the sundries comprises:

determining the position information of the sundries in the conveying direction L;

determining the delay time of the material blocking member 54 for performing the material blocking action according to the position information of the sundries in the conveying direction L;

when the time delay time of the sundries detected by the sundries recognition device 4, the material blocking piece 54 is moved to the material blocking position.

In addition, in some embodiments, determining the position information of the sundries, and moving the material blocking member 54 to the material blocking position according to the determined position information of the sundries includes:

determining position information of the sundries in a transverse direction W intersecting with the conveying direction L;

and determining the material blocking member 54 which needs to move to the material blocking position according to the position information of the sundries in the transverse direction W.

In some embodiments, the step of determining the material blocking member 54 which needs to move to the material blocking position according to the position information of the sundries in the transverse direction W includes:

according to the position information of the sundries in the transverse direction W, only the material blocking piece 54 covering the sundries in the transverse direction W is determined as the material blocking piece 54 needing to move to the material blocking position; or,

according to the position information of the sundries in the transverse direction W, the material blocking member 54 covering the sundries position on the transverse direction W and the material blocking member 54 adjacent to the material blocking member 54 covering the sundries position on the transverse direction W are determined as the material blocking member 54 needing to move to the material blocking position.

The above description is only exemplary of the application and should not be taken as limiting the application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the application should be included in the protection scope of the application.

Claims (15)

1. A tobacco shred impurity removal system (10), comprising:

the conveying mechanism (3) is used for conveying the cut tobacco;

the sundries recognition device (4) is arranged on the conveying path of the conveying mechanism (3) and is used for detecting sundries in the cut tobacco on the conveying mechanism (3); and

the rejecting mechanism (5) is arranged at the downstream of the conveying mechanism (3) along the conveying direction (L) of the conveying mechanism (3) and comprises a material blocking part (54), a first hopper (51) and a second hopper (52), the material blocking part (54) is coupled with the sundries recognition device (4) and moves between a material passing position and a material blocking position according to the detection result of the sundries recognition device (4), when the sundries recognition device (4) does not detect the sundries, the material blocking part (54) is located at the material passing position, the cut tobacco conveyed by the conveying mechanism (3) falls into the first hopper (51), and when the sundries recognition device (4) detects the sundries, the material blocking part (54) moves to the material blocking position to guide the cut tobacco conveyed by the conveying mechanism (3) and containing the sundries to fall into the second hopper (52).

2. A tobacco shred impurity removal system (10) according to claim 1, wherein the rejection mechanism (5) comprises at least two material blocking pieces (54), the at least two material blocking pieces (54) are arranged side by side along a transverse direction (W) intersecting the tobacco shred conveying direction (L), when the impurity recognition device (4) does not detect the impurity, the at least two material blocking pieces (54) are both in the material passing position, and when the impurity recognition device (4) detects the impurity, at least one of the at least two material blocking pieces (54) moves to the material blocking position.

3. A tobacco shred impurity removal system (10) according to claim 2, wherein after the impurity recognition device (4) detects the impurity, only a material blocking member (54) covering the impurity position in the transverse direction (W) in the at least two material blocking members (54) moves to the material blocking position, or the material blocking member (54) covering the impurity position in the transverse direction (W) in the at least two material blocking members (54) and the material blocking member (54) adjacent to the material blocking member (54) covering the impurity position in the transverse direction (W) move together to the material blocking position.

4. The tobacco shred impurity removing system (10) according to claim 1, wherein the material blocking piece (54) swings between a material passing position and a material blocking position according to the detection result of the impurity identifying device (4).

5. A tobacco shred impurity removal system (10) according to any one of claims 1 to 4, wherein the rejecting mechanism (5) comprises a driving mechanism (56), and the driving mechanism (56) is in driving connection with the material blocking member (54) and drives the material blocking member (54) to move between the material passing position and the material blocking position.

6. A tobacco shred impurity removal system (10) according to claim 5, wherein the rejection mechanism (5) comprises at least two driving mechanisms (56), and the at least two driving mechanisms (56) are in one-to-one driving connection with at least two material blocking pieces (54) of the rejection mechanism (5).

7. A tobacco shred impurity removing system (10) according to any one of claims 1 to 4, wherein the tobacco shred impurity removing system (10) comprises a controller (6), the controller (6) is in signal connection with the impurity identification device (4), and the material blocking part (54) is controlled to move between the material passing position and the material blocking position according to the detection result of the impurity identification device (4).

8. A tobacco shred decontamination system (10) according to any one of claims 1-4, wherein the tobacco shred decontamination system (10) is configured for at least one of:

the conveying speed of the conveying mechanism (3) is adjustable;

the sundry recognition device (4) comprises a spectral imaging sundry recognition device or a machine vision image sundry recognition device;

the material blocking part (54) comprises a material blocking plate (55).

9. A shredded tobacco impurity removal system (10) according to any one of claims 1-4, characterized in that the shredded tobacco impurity removal system (10) comprises at least one of:

the receiving device (8) is communicated with the second hopper (52) and is used for receiving the cut tobacco containing sundries falling from the second hopper (52);

the discharging mechanism (7) is communicated with the first hopper (51) and is used for conveying the cut tobacco falling from the first hopper (51) to the downstream;

the material homogenizing mechanism (2) is positioned on a conveying path of the conveying mechanism (3) and is used for homogenizing the cut tobacco on the conveying mechanism (3);

and the vibration groove (1) is arranged at the upstream of the conveying mechanism (3) along the conveying direction (L) of the conveying mechanism (3) so as to realize vibration conveying of the cut tobacco to the conveying mechanism (3).

10. A tobacco production system (100) comprising a tobacco cutter (20) and a tobacco shred impurity removal system (10) according to any one of claims 1 to 9, wherein the tobacco shred impurity removal system (10) is arranged downstream of the tobacco cutter (20) and receives tobacco shreds cut by the tobacco cutter (20) to remove impurities from the tobacco shreds cut by the tobacco cutter (20).

11. A tobacco shred impurity removal method based on the tobacco shred impurity removal system (10) according to any one of claims 1 to 9, characterized by comprising:

judging whether the sundries recognition device (4) detects that the cut tobacco on the conveying mechanism (3) contains sundries or not;

if the sundries recognition device (4) detects that the cut tobacco on the conveying mechanism (3) does not contain sundries, the material blocking part (54) is in the material passing position, so that the cut tobacco conveyed by the conveying mechanism (3) falls into the first hopper (51);

if the sundries identification device (4) detects that the cut tobacco on the conveying mechanism (3) contains sundries, the material blocking part (54) is moved to the material blocking position so as to guide the cut tobacco containing the sundries conveyed by the conveying mechanism (3) to fall into the second hopper (52).

12. A tobacco shred impurity removing method according to claim 11, wherein if the impurity identifying device (4) detects that impurities are contained in the tobacco shred on the conveying mechanism (3), the step of moving the material blocking member (54) to the material blocking position comprises the following steps:

when the sundries recognition device (4) detects that the cut tobacco on the conveying mechanism (3) contains sundries, determining the position information of the sundries, and enabling the material blocking part (54) to move to the material blocking position according to the determined position information of the sundries.

13. The tobacco shred impurity removing method according to claim 12, wherein determining position information of the impurities and moving the material blocking member (54) to the material blocking position according to the determined position information of the impurities comprises:

determining position information of the sundries in the conveying direction (L);

determining the delay time of the material blocking member (54) for executing material blocking action according to the position information of the sundries in the conveying direction (L);

and when the time for detecting the sundries by the sundry identification device (4) is delayed by the delay time, the material blocking piece (54) is moved to the material blocking position.

14. The tobacco shred impurity removing method according to claim 12, wherein the determining of the position information of the impurities and the moving of the material blocking piece (54) to the material blocking position according to the determined position information of the impurities comprise:

determining position information of the impurities in a transverse direction (W) intersecting the conveying direction (L);

and determining a material blocking piece (54) which needs to move to the material blocking position according to the position information of the sundries in the transverse direction (W).

15. The tobacco shred impurity removing method according to claim 14, wherein the step of determining the material blocking part (54) which needs to move to the material blocking position according to the position information of the impurities in the transverse direction (W) comprises the following steps:

according to the position information of the sundries in the transverse direction (W), only a material blocking piece (54) covering the sundries in the transverse direction (W) is determined as the material blocking piece (54) needing to move to the material blocking position; or,

according to the position information of the sundries in the transverse direction (W), a material blocking member (54) covering the sundries position on the transverse direction (W) and a material blocking member (54) adjacent to the material blocking member (54) covering the sundries position on the transverse direction (W) are determined as material blocking members (54) needing to move to the material blocking position.

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