Tobacco powder back-mixing device and tobacco leaf production line

Abstract

The invention relates to a tobacco powder back-mixing device and a tobacco leaf production line, the tobacco powder back-mixing device is used for back-mixing tobacco powder to tobacco lamina in the tobacco leaf production line, and the tobacco leaf production line comprises a conveying part used for conveying the tobacco lamina; the tobacco powder back-mixing device comprises a material uniformizing unit, a storage unit, a connecting pipe and a power assembly, the material uniformizing unit is arranged on a conveying part, the material uniformizing unit is provided with a feeding port and a back-mixing port communicated with the feeding port, and the back-mixing port is arranged towards the conveying part; the storage unit is provided with a storage cavity used for containing tobacco powder and a discharging port communicated with the storage cavity. One end of the connecting pipe is communicated with the feed port, and the other end of the connecting pipe is selectively communicated with the discharge port; the power assembly is partially arranged on the connecting pipe, and when the connecting pipe communicates with the discharging port, the power assembly is used for driving the tobacco powder in the storage cavity to be conveyed to the conveying piece through the back-mixing port, so that the tobacco powder can be automatically conveyed to the material uniformizing unit from the storage cavity, and the tobacco powder is conveyed to the conveying piece through the back-mixing port of the material uniformizing unit.

Description

Technical Field

[0001] The present application relates to the technical field of tobacco processing, and particularly to a tobacco dust re-blending device and a tobacco leaf production line. Background Art

[0002] The silk-making process is a process of processing tobacco leaf raw materials into finished cut tobacco that can be used for cigarette rolling on silk-making equipment. Its function is to optimize the combination of the hygroscopicity of tobacco leaves, the filling power of cut tobacco, and the anti-breakage property of cut tobacco after processing, and it occupies a core position in the cigarette manufacturing process. As an important part of the silk-making process, the cutting process aims to cut strip tobacco with appropriate moisture content and temperature into cut tobacco with a specified width by a cutting machine, and minimize breakage and runaway pieces as much as possible. Since strip tobacco will produce varying degrees of breakage during transportation, feeding, and cutting, it is necessary to screen out this part of the fragments before cutting to avoid further breakage of broken tobacco pieces. For the screened-out fragments, they are re-blended according to the principle of re-blending by material grade. The re-blending location is usually the conveyor belt at the outlet of the secondary feeding. When re-blending to the air-drying grade, considering the moisture content before drying in the air-drying grade, the re-blending location can be the conveyor belt at the outlet of the primary feeding.

[0003] During the actual production process, after workers use a large-capacity bucket truck to collect the tobacco dust screened out by the high-altitude vibrating trough before cutting, they push the bucket truck to the corresponding re-blending location according to the actual production situation, and use a dustpan and a broom to pour the tobacco dust onto the corresponding conveyor belt, thereby completing the tobacco dust re-blending process before the cutting process.

[0004] However, the method of manual tobacco dust re-blending has the following risks of foreign object mixing. There is a risk that damaged parts or adhered sundries on workers' personal items and tools will fall onto the strip tobacco during the operation, resulting in the artificial introduction of exogenous foreign objects and affecting product quality. Summary of the Invention

[0005] Based on this, it is necessary to provide a tobacco dust re-blending device and a tobacco leaf production line to avoid the introduction of exogenous foreign objects and thus improve product quality.

[0006] A tobacco dust re-blending device is used to re-blend tobacco dust into strip tobacco in a tobacco leaf production line. The tobacco leaf production line includes a conveying member for transporting the strip tobacco;

[0007] The tobacco dust re-blending device includes:

[0008] A material leveling unit is arranged on the conveying member. The material leveling unit is provided with a feeding port and a re-blending port communicating with the feeding port, and the re-blending port is arranged facing the conveying member;

[0009] A storage unit is provided with a storage cavity for accommodating the tobacco dust and a discharge port communicating with the storage cavity;

[0010] A connecting pipe, one end of which is connected to the feed port, and the other end of which is selectively connected to the discharge port;

[0011] A power assembly is partially arranged on the connecting pipe. When the connecting pipe is connected with the discharge port, the power assembly is used to drive the tobacco powder in the storage chamber to be transported to the conveying member through the re-mixing port.

[0012] In one of the embodiments, the storage unit further includes a cover body, and when the discharge port is connected to the connecting pipe, the cover body can selectively cover the discharge port.

[0013] In one embodiment, the storage unit includes side walls and a bottom wall, the side walls are connected to the periphery of the bottom wall to enclose the storage cavity, the discharge port is arranged at the bottom of the side walls, and at least a portion of the bottom wall is inclined downward toward the discharge port.

[0014] In one of the embodiments, a vibrating member is provided on a side of the bottom wall facing away from the storage cavity for vibrating the storage unit.

[0015] In one embodiment, the power assembly includes a vacuum generator and a compressed air machine connected to each other, and the vacuum generator is arranged on the connecting pipe to drive the tobacco dust in the storage chamber to be transported to the mixing unit;

[0016] The compressed air machine is also connected to the vibrating member.

[0017] In one embodiment, the material mixing unit includes a cylinder, a rotating shaft and a plurality of partitions. The extension direction of the cylinder intersects with the movement direction of the conveying member. The rotating shaft is arranged in the cylinder and extends from the cylinder. The rotating shaft can rotate relative to the cylinder. The partitions are arranged inside the cylinder. The plurality of partitions are arranged in sequence at intervals on the circumference of the rotating shaft to divide the inside of the cylinder into a plurality of material distribution chambers, and the partitions can rotate with the rotating shaft.

[0018] In one embodiment, the smoke dust remixing device further comprises a door frame-shaped bracket assembly, and the cylinder is arranged inside the bracket assembly;

[0019] The bracket assembly includes two first brackets arranged in a vertical direction and a second bracket connected to the first bracket, and both ends of the second bracket are connected to the first bracket, the first bracket is provided with a mounting portion, one of the mounting portions is provided with a motor, the rotating shaft is passed through the first bracket, and the rotating shaft is drivingly connected to the output shaft of the motor.

[0020] In one embodiment, the first bracket is provided with a plurality of connection points spaced apart in the vertical direction.

[0021] The bracket assembly further includes a connecting member. The bottom end of the connecting member is connected to the cylinder body, and the connecting member is fixedly connected to the connection point. By connecting different connection points, the distance between the cylinder body and the conveying member can be adjusted.

[0022] In one embodiment, in the vertical direction, the distance between the backmixing port and the conveying member is 10 cm to 20 cm.

[0023] This application also provides a tobacco leaf production line, including the tobacco dust backmixing device described in any of the above embodiments. The tobacco leaf production line includes a conveying member for transporting the sliced tobacco, and the material leveling unit in the backmixing device is arranged on the conveying member.

[0024] Compared with the prior art, in the tobacco dust backmixing device provided by this application, the connecting pipe and the discharge port of the storage unit are set to be selectively connected. When the connecting pipe is disconnected from the storage unit, it can be moved to other processes to collect tobacco dust; when the connecting pipe is connected to the storage unit, the power assembly provides power, so that the tobacco dust in the storage cavity of the storage unit is transported to the material leveling unit and finally conveyed onto the conveying member through the backmixing port of the material leveling unit. This application automatically backmixes the tobacco dust into the sliced tobacco located on the conveying member, avoiding manual operation, thereby avoiding the risk of foreign objects mixing into the conveyor belt, and further improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of this application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a perspective view of the tobacco dust backmixing device according to an embodiment of this application;

[0027] Figure 2 It is a perspective view of the material leveling unit and the bracket assembly in an embodiment of this application;

[0028] Figure 3 It is a perspective view of the storage unit in an embodiment of this application;

[0029] Figure 4 It is another perspective view of the storage unit in an embodiment of this application;

[0030] Figure 5 It is an internal structure diagram of the material leveling unit in an embodiment of this application.

[0031] Reference numerals: 1, tobacco dust reblending device; 10, material leveling unit; 101, feed inlet; 102, reblending port; 110, cylinder body; 120, rotating shaft; 130, partition board; 140, motor; 150, seal; 160, lower flange; 170, upper flange; 180, oil receiving tray; 20, storage unit; 201, discharge port; 202, storage cavity; 210, side wall; 211, first side wall; 220, bottom wall; 230, vibrating member; 240, compressed air distributor; 250, universal wheel; 260, shock absorption spring; 30, connecting pipe; 410, vacuum generator; 420, first air pipe; 430, pneumatic control element; 440, compressed air switch; 450, main compressed air pipe; 460, second air pipe; 50, bracket assembly; 510, first bracket; 511, first section; 512, second section; 513, third section; 520, second bracket; 530, connecting member; 540, reinforcing rib; 550, fixing block; 560, buffer member; 2, conveying member. Detailed implementation manners

[0032] To make the above objects, features, and advantages of the present application more apparent and understandable, the following describes the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0033] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0035] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the first feature being "above", "over" or "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" or "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0036] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the related listed items.

[0037] Please refer to Figures 1 to 5 , this application provides a tobacco dust re-blending device 1 for re-blending tobacco dust into cut tobacco in a tobacco production line, and the tobacco production line includes a conveyor 2 for transporting cut tobacco. Specifically, the conveyor 2 may be a primary feeding outlet conveyor 2 or a secondary feeding outlet conveyor 2.

[0038] Refer to Figure 1 and Figure 2 , the tobacco dust re-blending device 1 includes: a material leveling unit 10, a storage unit 20, a connecting pipe 30 and a power assembly. Among them, the material leveling unit 10 is arranged on the conveyor 2, the material leveling unit 10 is provided with a feeding port 101 and a re-blending port 102 communicating with the feeding port 101, and the re-blending port 102 is arranged facing the conveyor 2; the storage unit 20 is provided with a storage cavity 202 for accommodating tobacco dust and a discharge port 201 communicating with the storage cavity 202; one end of the connecting pipe 30 communicates with the feeding port 101, and the other end is selectively communicated with the discharge port 201; part of the power assembly is arranged on the connecting pipe 30. When the connecting pipe 30 communicates with the discharge port 201, the power assembly is used to drive the tobacco dust in the storage cavity 202 to be transported to the conveyor 2 through the re-blending port 102.

[0039] When the connecting pipe 30 communicates with the storage unit 20, the power assembly provides power, so that the tobacco dust in the storage cavity 202 of the storage unit 20 is transported to the material leveling unit 10 and finally conveyed onto the conveyor 2 through the re-blending port 102 of the material leveling unit 10. By automatically re-blending the tobacco dust into the cut tobacco located on the conveyor 2, manual operation is avoided, and the risk that personal items of workers, damaged parts or adhered sundries on the tools fall onto the cut tobacco during the operation is avoided, thereby avoiding the risk of foreign objects mixing into the conveyor belt, and further improving the product quality.

[0040] When the connecting pipe 30 is disconnected from the storage unit 20, the storage unit 20 can be moved to other positions, such as to the tobacco dust collection place or to the collection place for collecting the storage unit 20.

[0041] The usage mode of the tobacco dust backmixing device 1 in this embodiment is as follows: disconnect the connection between the connecting pipe 30 and the storage unit 20, move the storage unit 20 to the tobacco dust collection place to collect tobacco dust, then move the storage unit 20 to the connecting pipe 30, and connect and communicate the connecting pipe 30 with the discharge port 201 of the storage unit 20. Start the power assembly so that the power assembly provides power to transport the tobacco dust in the storage cavity 202 from the storage cavity 202 to the material leveling unit 10, and the tobacco dust is transported from the backmixing port 102 to the conveying member 2, thereby completing the backmixing of the tobacco dust. It can be understood that when the discharge port 201 is in communication with the connecting pipe 30, the tobacco dust can also be directly poured into the storage unit 20.

[0042] In addition, since the operation of the tobacco dust backmixing device 1 in this embodiment is uniform, it can uniformly backmix the tobacco dust to the conveying member 2, so as to ensure the uniform backmixing of the tobacco dust, so that the fragments can uniformly absorb the liquid material after entering the leaf storage cabinet, thereby improving the sensory quality of the finished cut tobacco. Also, when manually backmixing the tobacco dust, the worker needs to be close to the running conveying member 2 during the process of collecting and pouring the tobacco dust, which may cause mechanical injury to the worker. Therefore, when using the tobacco dust backmixing device 1 in this embodiment for automatic mechanized backmixing of tobacco dust, the worker does not need to approach the running conveying member 2, thus avoiding potential safety hazards for the worker.

[0043] In one embodiment, the power assembly includes a vacuum generator 410 and a compressed air machine (not shown in the figure) connected to each other, and the vacuum generator 410 is provided on the connecting pipe 30. Specifically, the vacuum generator 410 has an air suction port and an air exhaust port, the air suction port is communicated with the connecting pipe 30, and the air exhaust port is communicated with the material leveling unit 10. The compressed air machine is used to provide compressed air to the vacuum generator 410 as the power source of the vacuum generator 410. When the compressed air passes through the vacuum generator 410 at high speed, a local negative pressure (vacuum effect) is formed at the air suction port communicated with the connecting pipe 30, so as to generate a pressure difference between the storage unit 20 and the material leveling unit 10. This pressure difference drives the tobacco dust in the storage cavity 202 of the storage unit 20 to be sucked to the material leveling unit 10 through the connecting pipe 30 under the action of vacuum suction, thereby realizing the directional transfer of the tobacco dust.

[0044] Schematically, an air compressor and a vacuum generator 410 are connected through a first air pipe 420 and a pneumatic control element 430. The pneumatic control element 430 is a pressure reducing valve, a filter, and a solenoid valve respectively. The compressed air generated by the air compressor enters the pneumatic control element 430 from the first air pipe 420. After being processed by the pressure reducing valve and the filter, the compressed air enters the vacuum generator 410 through the control of the solenoid valve. After the vacuum generator 410 operates, the tobacco dust at the discharge port 201 of the storage unit 20 can be sucked through the connecting pipe 30.

[0045] Schematically, the power assembly further includes a compressed air switch 440 for controlling the opening and closing of the air compressor. The compressed air switch 440 is connected to the air compressor through a main compressed air pipe 450.

[0046] Schematically, the shape of the discharge port 201 is a flared outlet. The flared outlet protrudes from the storage unit 20 and is located outside the storage unit 20. The interface between the connecting pipe 30 and the discharge port 201 is a quick-connect type to facilitate the disassembly between the connecting pipe 30 and the discharge port 201.

[0047] In one embodiment, the storage unit 20 further includes a cover (not shown in the figure). When the discharge port 201 is communicated with the connecting pipe 30, the cover can selectively cover the discharge port 201, that is, open or close the discharge port 201. Thus, when the discharge port 201 of the storage unit 20 is disconnected from the connecting pipe 30 and there is tobacco dust stored in the storage cavity 202, it can avoid the overflow of tobacco dust from the discharge port 201, thereby avoiding the loss of tobacco dust and avoiding the pollution of the production environment by tobacco dust.

[0048] In one embodiment, referring to Figure 3 and Figure 4 , the storage unit 20 includes a side wall 210 and a bottom wall 220. The side wall 210 is connected to the periphery of the bottom wall 220 to enclose a storage cavity 202. The discharge port 201 is provided at the bottom of the side wall 210. The cover is provided on the side of the side wall 210 facing away from the storage cavity 202, and the cover is a gate-type cover, which can be close to the side wall 210 and open or close the discharge port 201 in a translational manner. Thus, when there is tobacco dust stored in the storage cavity 202, it can make the connecting pipe 30 communicate with the discharge port 201 without disturbing the tobacco dust, and further make it more convenient for the cover to open the discharge port 201.

[0049] The usage method of the storage unit 20 in this embodiment: When the storage unit 20 is moved to other processes to collect tobacco dust, first move the storage unit 20 to the connecting pipe 30. After the connecting pipe 30 is connected to the discharge port 201, pull the cover to open the discharge port 201 so that the connecting pipe 30 communicates with the discharge port 201.

[0050] In one embodiment, referring to Figure 3, at least a part of the bottom wall 220 is inclined downward toward the discharge port 201. In this way, the tobacco dust can automatically gather at the discharge port 201 under the action of gravity, so that the tobacco dust can more easily enter the connecting pipe 30 from the discharge port 201.

[0051] Further, the number of the side walls 210 is four. The side wall 210 provided with the discharge port 201 is defined as the first side wall 211, and the discharge port 201 is arranged in the middle of the bottom of the first side wall 211. The bottom wall 220 includes a plurality of sub-bottom walls, and the sub-bottom walls are inclined downward toward the discharge port 201, so that the tobacco dust at each position can slide down to the discharge port 201 under the action of gravity.

[0052] In one embodiment, referring to Figure 4 , a vibrating member 230 is provided on the side of the bottom wall 220 facing away from the storage cavity 202, and is used to vibrate the storage unit 20, so that the tobacco dust in the storage cavity can gather at the discharge port 201. In this way, it is further ensured that the tobacco dust can more easily enter the connecting pipe 30 from the discharge port 201.

[0053] In one embodiment, the air compressor is connected to the vibrating member 230 through a second air pipe 460. When the air compressor provides compressed air, it can drive the vibrating member 230 to work to generate vibration, so that the tobacco dust inside the storage cavity 202 of the storage unit 20 slides down to the discharge port 201, which is convenient for the vacuum generator 410 to suck the tobacco dust.

[0054] Illustratively, the number of the vibrating members 230 is four, and the compressed air provided by the air compressor is distributed to each vibrating member 230 through a compressed air distributor 240. And the four vibrating members 230 are arranged in four directions of the bottom wall 220. When the compressed air is turned on, the four directions of the front, back, left, and right of the vibrating member 230 vibrate simultaneously through air pressure, so that the tobacco dust can slide to the bottom of the box.

[0055] Further, universal wheels 250 are installed at the bottom of the storage unit 20 to facilitate the movement of the storage unit 20. Shock-absorbing springs 260 are installed on the universal wheels 250, and the shock-absorbing springs 260 are arranged between the universal wheels 250 and the bottom wall 220 of the storage unit 20 to play a role in buffering and shock absorption when the storage unit 20 vibrates. Further, a muffler (not shown in the figure) is also provided on the vibrating member 230 to reduce noise.

[0056] In one embodiment, referring to Figure 2 and Figure 5, the material leveling unit 10 includes a cylinder body 110, a rotating shaft 120, and a plurality of partition plates 130. The extending direction of the cylinder body 110 intersects with the moving direction of the conveying member 2. The rotating shaft 120 is disposed inside the cylinder body 110 and extends out from both ends of the cylinder body 110. The rotating shaft 120 can rotate relative to the cylinder body 110; the partition plates 130 are disposed inside the cylinder body 110, and the plurality of partition plates 130 are sequentially arranged at intervals in the circumferential direction of the rotating shaft 120 to divide the interior of the cylinder body 110 into a plurality of material distribution chambers, and the partition plates 130 can rotate with the rotating shaft 120. In this way, when the partition plates 130 rotate, they can slightly stir the tobacco dust falling from the feed inlet 101, break up the lumps and reduce the risk of local blockage. At the same time, the partition structure of the material distribution chamber limits the single-pass quantity, so that the tobacco dust can fall onto the conveying member 2 at a more stable speed.

[0057] It can be understood that after the tobacco dust enters the material leveling unit 10 along the connecting pipe 30, the tobacco dust will fall between adjacent partition plates 130, that is, into each material distribution chamber. As the partition plates 130 rotate, the material distribution chambers can sequentially receive the tobacco dust falling from the feed inlet 101, and the tobacco dust in each material distribution chamber will also sequentially fall from the re-blending port 102 onto the conveying member 2. It can also be understood that except for the material distribution chamber communicated with the re-blending port 102, the other material distribution chambers are sealed. Since the material distribution chamber communicated with the feed inlet 101 is sealed, and a local negative pressure will be formed at the suction port where the vacuum generator 410 is communicated with the connecting pipe 30, in this way, the pressure difference between the storage unit 20 and the material distribution chamber of the material leveling unit 10 is increased, so that the tobacco dust can enter the material distribution chamber more easily. In addition, the combined action of the sealed and unsealed material distribution chambers can also play a role in balancing the internal pressure of the material leveling unit 10, thereby ensuring the system stability, safety and continuity of the tobacco dust re-blending device 1.

[0058] Furthermore, a sealing member 150 is provided at the end of the partition plate 130 far from the rotating shaft 120. The sealing member 150 abuts against the inner wall of the cylinder body 110, so as to improve the tightness of the material distribution chamber, increase the pressure difference between the material distribution chamber and the storage chamber 202, and thus be beneficial to the directional transfer of the tobacco dust.

[0059] Schematically, the rotating shaft 120 can be driven by a motor 140 or manually driven. This embodiment does not limit this, as long as the rotating shaft 120 can rotate relative to the cylinder body 110.

[0060] Furthermore, the material leveling unit 10 further includes an upper flange 170 and a lower flange 160 which are connected to each other. There are communicating flow channels inside the upper flange 170 and the lower flange 160. The lower flange 160 is welded to the feed port 101 on the cylinder 110, and the upper flange 170 is connected to the connecting pipe 30 to form a passage, so that the tobacco dust can be transferred from the storage cavity 202 to the material distribution cavity. Schematically, the upper flange 170 and the lower flange 160 are connected by screws and nuts, and can be quickly disassembled and inspected in case of failure.

[0061] In one embodiment, referring to Figure 1 and Figure 2 , the tobacco dust backmixing device 1 further includes a frame-shaped support assembly 50, and the cylinder 110 is arranged inside the support assembly 50. The support assembly 50 includes two first supports 510 arranged in the vertical direction and a second support 520 connecting the first supports 510. Both ends of the second support 520 are connected to the first support 510. There is an installation part on the first support 510, and a motor 140 is arranged on one of the installation parts. The rotating shaft 120 passes through the first support 510, and the rotating shaft 120 is drivingly connected to the output shaft of the motor 140. In this way, the cylinder 110 of the material leveling unit 10 can be stably installed in the support assembly 50.

[0062] Schematically, the first support 510 includes a first section 511 arranged in the vertical direction, a second section 512 arranged in the horizontal direction, and a third section 513 arranged in the vertical direction which are connected in sequence. The first section 511 is connected to the conveying member 2, and the installation part is arranged on the second section 512 so that the motor 140 is stably installed on the installation part. Both ends of the second support 520 are respectively connected to the third section 513.

[0063] In one embodiment, an oil receiving tray 180 is further arranged on the installation part, and the oil receiving tray 180 is arranged below the motor 140 to receive the oil stains dripping from the motor 140, so as to avoid the oil stains from contaminating the tobacco leaves or tobacco dust and ensure the product hygiene and safety. Moreover, it can also prevent the oil stains from dripping to the ground, reduce the risk of slipping in the workshop, and improve the operation safety.

[0064] In one embodiment, the support assembly 50 further includes a reinforcing rib 540. The reinforcing rib 540 is arranged at the connection of the first section 511 and the second section 512 to increase the stability of the support assembly 50, and further strengthen the supporting effect of the support assembly 50 on the material leveling unit 10. Further, a fixing block 550 is also arranged inside the reinforcing rib 540. The fixing block 550 is provided with two pairs of long grooves. In the extending direction of the cylinder 110, the distance of the fixing block 550 is adjustable. The bottom of the fixing block 550 is fixed at the backmixing port 102 of the cylinder 110, and the opening of the fixing block 550 is inserted into the reinforcing rib 540 to fix and limit the shortest distance between the cylinder 110 and the first section 511.

[0065] In one embodiment, the bracket assembly 50 further includes a buffer member 560 disposed on the side of the second section 512 facing away from the motor 140 to buffer the vibration of the motor 140 during movement against the first bracket 510.

[0066] In one embodiment, the first bracket 510 is provided with a plurality of connection points arranged at intervals in the vertical direction. The bracket assembly 50 further includes a connecting member 530. The bottom end of the connecting member 530 is connected to the cylinder 110, and the connecting member 530 is fixedly connected to the connection points. By connecting different connection points, the connecting member 530 can adjust the distance between the cylinder 110 and the conveying member 2 to improve the adaptability of the tobacco dust reblending assembly to different conveying members 2.

[0067] Further, in the vertical direction, the distance between the reblending port 102 and the conveying member 2 is 10 cm to 20 cm. Since the cut tobacco protrudes from the conveying member 2, in this way, it is possible to prevent the cylinder 110 from scraping the cut tobacco or prevent the cut tobacco from accumulating at the cylinder 110.

[0068] Specifically, the distance between the reblending port 102 and the conveying member 2 is 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, 16 cm, 17 cm, 18 cm, 19 cm, 20 cm, or any other arbitrary value within the range of 10 cm to 20 cm.

[0069] The present application also provides a tobacco leaf production line, including the tobacco dust reblending device 1 in any of the above embodiments. The tobacco leaf production line includes a conveying member 2 for transporting cut tobacco, and the material leveling unit 10 in the reblending device is disposed on the conveying member 2.

[0070] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0071] The above-described embodiments merely represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A tobacco dust back-mixing device, characterized in that: Used for back-mixing tobacco dust into tobacco leaves in a tobacco production line, the tobacco production line comprising a conveying member (2) for transporting the tobacco leaves; The tobacco dust backmixing device (1) comprises: a material mixing unit (10), the material mixing unit (10) being arranged on the conveying member (2), the material mixing unit (10) being provided with a material feed port (101) and a remixing port (102) communicating with the material feed port (101), and the remixing port (102) being arranged towards the conveying member (2); A storage unit (20), the storage unit (20) being provided with a storage cavity (202) for accommodating the tobacco powder and a discharge port (201) communicating with the storage cavity (202); A connecting pipe (30), one end of the connecting pipe (30) being connected to the feed port (101), and the other end of the connecting pipe (30) being selectively connected to the discharge port (201); A power assembly is partially disposed in the connecting pipe (30); when the connecting pipe (30) is connected to the discharge port (201), the power assembly is used to drive the tobacco powder in the storage chamber (202) to be transported to the conveying member (2) through the remixing port (102).

2. The smoke dust remixing device according to claim 1, characterized in that: The storage unit (20) further comprises a cover body, and when the discharge port (201) is connected to the connecting pipe (30), the cover body can selectively cover the discharge port (201).

3. The smoke dust back-mixing device according to claim 1, characterized in that: The storage unit (20) comprises a side wall (210) and a bottom wall (220); the side wall (210) is connected to the periphery of the bottom wall (220) to enclose the storage cavity (202); the discharge port (201) is arranged at the bottom of the side wall (210); and at least a portion of the bottom wall (220) is inclined downwardly toward the discharge port (201).

4. The smoke dust back-mixing device according to claim 3, characterized in that: A vibrating member (230) is provided on a side of the bottom wall (220) facing away from the storage cavity (202) for vibrating the storage unit (20).

5. The smoke dust remixing device according to claim 4, characterized in that: The power assembly comprises a vacuum generator (410) and a compressed air machine which are connected to each other; the vacuum generator (410) is arranged on the connecting pipe (30) and is used to drive the tobacco dust in the storage chamber (202) to be transported to the mixing unit (10); The compressed air machine is also connected to the vibration element (230).

6. The tobacco dust remixing device according to any one of claims 1 to 5, characterized in that: The material distribution unit (10) comprises a cylinder (110), a rotating shaft (120) and a plurality of partitions (130); the extension direction of the cylinder (110) intersects with the movement direction of the conveying member (2); the rotating shaft (120) is arranged in the cylinder (110) and extends from the cylinder (110); the rotating shaft (120) can rotate relative to the cylinder (110); the partitions (130) are arranged inside the cylinder (110); a plurality of the partitions (130) are arranged in sequence at intervals in the circumferential direction of the rotating shaft (120) to divide the inside of the cylinder (110) into a plurality of material distribution chambers; and the partitions (130) can rotate along with the rotating shaft (120).

7. The tobacco dust remixing device according to claim 6, characterized in that: The smoke dust remixing device further comprises a door frame-shaped bracket assembly (50), and the cylinder (110) is arranged inside the bracket assembly (50); The bracket assembly (50) comprises two first brackets (510) arranged in a vertical direction and a second bracket (520) connected to the first brackets (510), and both ends of the second bracket (520) are connected to the first bracket (510), the first bracket (510) is provided with a mounting portion, one of the mounting portions is provided with a motor (140), the rotating shaft (120) is passed through the first bracket (510), and the rotating shaft (120) is drivingly connected to an output shaft of the motor (140).

8. The smoke dust remixing device according to claim 7, characterized in that: The first bracket (510) is provided with a plurality of connection points arranged at intervals in the vertical direction. The support assembly (50) further comprises a connecting member (530), the bottom end of the connecting member (530) being connected to the cylinder (110), the connecting member (530) being fixedly connected to the connecting point, and the connecting member (530) being able to adjust the distance between the cylinder (110) and the conveying member (2) by connecting to different connecting points.

9. The smoke dust remixing device according to claim 8, characterized in that: In the vertical direction, the distance between the remixing port (102) and the conveying member (2) is 10 cm to 20 cm.

10. A tobacco production line, characterized in that: The invention comprises a tobacco dust remixing device (1) as claimed in any one of claims 1 to 9, wherein the tobacco leaf production line comprises a conveying member (2) for transporting the tobacco leaves, and a mixing unit (10) in the remixing device is arranged on the conveying member (2).

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