Tobacco stem and tobacco shred separating device

Abstract

The invention relates to a tobacco stem and tobacco shred separating device which comprises a box body, a tobacco stem separating device and a tobacco shred separating device. The feeding opening is formed in the box body; an inner cavity of the box body comprises a first area, a second area and a third area, and the first area, the second area and the third area are provided with a first discharge port, a second discharge port and a third discharge port respectively; the air blowing assembly is used for blowing air into the inner cavity of the box body; and the material conveying channel is used for conveying the materials discharged from the second discharging opening to the feeding opening. According to the tobacco stem and tobacco shred separating device, under the action of the air blowing assembly, the tobacco stem and tobacco shred mixture is blown into the inner cavity of the box body, due to the fact that the tobacco stems and the tobacco shreds are different in mass and density and different in moving distance along with air, the moving distance of the tobacco shreds is larger, and the tobacco shreds can be separated from the tobacco shreds. And part of the tobacco stem and tobacco stem mixture which is not thoroughly separated falls into the second area and is conveyed to the feeding port to be subjected to blowing separation again, so that the tobacco stem and tobacco stem separation efficiency can be greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of tobacco shred processing, and in particular to a tobacco stem and tobacco shred separation device. Background Art

[0002] Cigarette factories use a large amount of shredded tobacco in the production process. Shredded tobacco is processed from tobacco leaves through multiple processes. One of the important steps is to complete the separation of tobacco stems and shredded tobacco, separate large-sized tobacco stems from shredded tobacco, realize the refined screening of shredded tobacco, and improve the quality of shredded tobacco. At present, the tobacco stem and shredded tobacco separation devices widely used in cigarette factories mostly include an overall vertically arranged channel, and the channel is partially arranged in an S-shape or other continuous turning shapes. The shredded tobacco flows along the channel driven by wind force, and the flow direction of the shredded tobacco is repeatedly changed. Due to the different qualities of the tobacco stems and shredded tobacco, the shredded tobacco and the tobacco stems are transported in layers in the channel. When discharged from the outlet of the channel, the shredded tobacco and the tobacco stems are collected in different equipment respectively, thereby realizing the separation of the tobacco stems and the shredded tobacco. However, in the actual shredded tobacco processing process, it is found that the separation effect of this type of tobacco stem and shredded tobacco separation device is not ideal. Often, some shredded tobacco is mixed in the separated tobacco stems, and some stems are mixed in the separated tobacco, which affects the quality of the shredded tobacco. Summary of the invention

[0003] The purpose of the present application is to provide a tobacco stem and shredded tobacco separation device, which can more effectively and thoroughly separate tobacco stems from shredded tobacco, thereby effectively solving the deficiencies existing in the prior art.

[0004] To this end, the present application provides a tobacco stem and tobacco shred separation device, comprising:

[0005] The box body has an internal cavity and an opening, the internal cavity of the box body is connected to the outside through the opening, and the opening is arranged on one side of the box body in the horizontal direction;

[0006] A feed port, arranged in the box body and close to the opening;

[0007] The internal cavity of the box body includes a first area, a second area and a third area arranged in sequence along a direction parallel to the opening, and the first area, the second area and the third area are respectively provided with a first discharge port, a second discharge port and a third discharge port;

[0008] An air blowing assembly is disposed near the opening of the box body and is used to blow air into the internal cavity of the box body;

[0009] The material conveying channel is arranged between the second discharge port and the feed port, and is used for conveying the material discharged from the second discharge port to the feed port.

[0010] In some possible implementations, the box body includes a bottom plate, a top plate and three side plates, the bottom plate, the top plate and the three side plates enclose the box body, and the first discharge port, the second discharge port and the third discharge port are sequentially arranged on the bottom plate.

[0011] In some possible implementations, a sieve plate is liftably disposed above the bottom plate of the box, and the sieve plate has sieve holes.

[0012] In some possible implementations, the screen plate is arranged in a continuously curved shape along the arrangement direction of the first discharge port, the second discharge port, and the third discharge port.

[0013] In some possible implementations, a driving device is provided on the box body, and an output end of the driving device is connected to the screen plate to drive the screen plate to rise and fall.

[0014] In some possible implementations, vertical guide columns are provided on the box body, and guide holes are provided on the screen plate. The guide holes and the guide columns cooperate to limit the vertical movement of the screen plate.

[0015] In some possible implementations, a hopper is further included, wherein the hopper is connected to the feed port, one end of the material conveying channel is connected to the second discharge port, and the other end of the material conveying channel extends to above the hopper.

[0016] In some possible implementations, a filtering mechanism is further included, and the filtering mechanism is located below the first discharge port and is used to filter the material discharged from the first discharge port.

[0017] In some possible implementations, the filtering mechanism includes a first sleeve and a second sleeve, the first sleeve and the second sleeve are both cylindrical, the second sleeve is coaxially and rotatably arranged in the first sleeve, the second sleeve is provided with sieve holes, and the first sleeve is provided with a feed port, and the material entering through the feed port falls into the second sleeve to complete the screening.

[0018] In some possible implementations, an accommodating gap is formed between the first sleeve and the second sleeve, a spiral blade is provided on the outer periphery of the second sleeve, and the second sleeve drives the spiral blade to rotate to move the material in the accommodating gap between the first sleeve and the second sleeve.

[0019] According to the tobacco stem and tobacco separation device provided in the embodiment of the present application, when the tobacco stem and tobacco mixture is separated, the tobacco stem and tobacco mixture is blown into the internal cavity of the box body under the action of the blowing assembly. Due to the different masses and densities of the tobacco stems and tobacco, the distances they move with the wind are different, so that the tobacco moves a greater distance and falls to the first area, and the tobacco stems move a smaller distance and fall to the third area, thereby achieving effective separation of the tobacco stems and tobacco. In addition, the part of the tobacco stem and tobacco mixture that is not separated thoroughly enough falls to the second area and is then re-transported to the feed port via the material conveying channel for further blowing separation. Such a cycle can greatly improve the efficiency of separating the tobacco stems and tobacco, which is beneficial to improving the quality of the tobacco. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a tobacco stem and shredded tobacco separation device provided in an embodiment of the present application;

[0021] Figure 2 A schematic structural diagram of the tobacco stem and shredded tobacco separation device provided in an embodiment of the present application from another perspective;

[0022] Figure 3 A schematic diagram of the structure of the tobacco stem and shredded tobacco separation device provided in an embodiment of the present application with one side panel of the box removed;

[0023] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0024] Figure 5 for Figure 3 A partial enlarged view of point B in the middle;

[0025] Figure 6 A schematic diagram of the structure of the box provided in the embodiment of the present application after removing a side panel and a top panel;

[0026] Figure 7 A schematic diagram of the structure of the filtering mechanism provided in the embodiment of the present application;

[0027] Figure 8 A schematic diagram of the structure of the chute provided in the embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] like Figure 1-Figure 8As shown, the embodiment of the present application provides a tobacco stem and shredded tobacco separation device, which is used in the processing technology of shredded tobacco to separate and remove the tobacco stems from the shredded tobacco. At present, the tobacco stem and shredded tobacco separation device widely used in cigarette factories usually includes a vertically arranged channel, in which a continuous curved shape such as an S shape is partially arranged, and then air is blown into the channel to transport the tobacco stem and shredded tobacco mixture into the channel. Due to the density difference between the tobacco stem and the shredded tobacco, the shredded tobacco and the tobacco stem are transported in layers in the channel. When the tobacco stem and the shredded tobacco are discharged from the discharge port of the channel, the tobacco stem and the shredded tobacco are separated and discharged. The tobacco shreds and tobacco are collected by different devices respectively, thereby completing the separation of shredded tobacco and tobacco stems. However, in actual use, it is found that this type of tobacco stalk and shredded tobacco separation device has certain drawbacks. The separation effect of tobacco stalks and tobacco is not very ideal, and the separation of tobacco stalks and tobacco is not thorough enough, so that some shredded tobacco is mixed in the separated tobacco stalks, and some stems are mixed in the separated tobacco, which affects the quality of shredded tobacco. The tobacco stalk and shredded tobacco separation device of the present application aims to improve the separation effect of tobacco stalks and tobacco, so that the separation of tobacco stalks and tobacco is more thorough, so as to improve the quality of shredded tobacco.

[0030] The tobacco stem and shred separation device comprises a box body 1, the box body 1 has an internal cavity and an opening, the internal cavity of the box body 1 is connected to the external space through the opening, and the opening is arranged on one side of the box body 1 in the horizontal direction, that is, the opening direction of the box body 1 is in the horizontal direction, and the box body 1 is also provided with a feed port 2, which is arranged on the box body 1 and is arranged near the opening position of the box body 1.

[0031] In this embodiment, the internal cavity of the box body 1 includes a first area 31, a second area 32 and a third area 33, and the first area 31, the second area 32 and the third area 33 are arranged in sequence along the direction of the opening. In other words, the first area 31, the second area 32 and the third area 33 are arranged in sequence, and the arrangement direction is a horizontal direction. The first area 31, the second area 32 and the third area 33 are all located in the internal cavity of the box body 1, and the second area 32 is located between the first area 31 and the third area 33. The first area 31 is farthest from the opening of the box body 1, and the third area 33 is closest to the opening of the box body 1. The first area 31 is provided with a first discharge port 41, the second area 32 is provided with a second discharge port 42, and the third area 33 is provided with a third discharge port 43, and also includes a blast assembly 5, which is arranged outside the box body 1, and the blast assembly 5 is arranged close to the opening of the box body 1, and the blast assembly 5 is used to blow air into the internal cavity of the box body 1 through the opening of the box body 1, and the tobacco shreds and tobacco stems mixed material is transported to the internal cavity of the box body 1 through the feeding port 2. At the same time, the blast assembly 5 blows toward the opening of the box body 1, and then blows the material into the internal cavity of the box body 1. The blowing direction of the blast assembly 5 is also horizontal, and toward the box body 1. The internal cavity of the box body 1 is blown, and then the material is blown horizontally into the internal cavity of the box body 1. For the mixture of tobacco stems and tobacco shreds, due to the different masses and densities of the tobacco stems and tobacco shreds, the distances that the tobacco stems and tobacco shreds move with the airflow are also different. The lighter tobacco shreds move farther with the airflow and fall to the first area 31, and are discharged and collected through the first discharge port 41. The heavier tobacco stems move closer with the airflow and fall to the third area 33, and are discharged and collected through the third discharge port 43. Then, the tobacco stems and tobacco shreds are separated. If the separation is not thorough enough, part of the mixture of tobacco stems and tobacco shreds will fall in the middle. In the second area 32 of the part, which is the intersection and overlap area of ​​the tobacco shreds area and the tobacco stem area, the tobacco shreds and tobacco stem mixture that is not separated thoroughly enough falls into the second area 32 and is discharged through the second discharge port 42. It also includes a material conveying channel 6, which is arranged between the second discharge port 42 and the feed port 2. The material conveying channel 6 is used to convey the mixed material from the second discharge port 42 to the feed port 2, so that the incompletely separated material can be blown and separated again until it is completely separated. In this way, the effect of separating tobacco stems from tobacco shreds is greatly improved, the tobacco shreds are purer, which is beneficial to improving the quality of tobacco shreds and avoiding waste.

[0032] The air blowing assembly 5 can be a fan or the like, and the fan can be installed on the ground or on other racks through components such as a fixing frame.

[0033] Preferably, the box body 1 includes a bottom plate, a top plate and three side plates, and the bottom plate, the top plate and the three side plates enclose a rectangular space, the top plate is located at the top, the bottom plate is located at the bottom, and the three side plates are enclosed on the outer peripheral side to form a horizontally open space, and the first discharge port 41, the second discharge port 42 and the third discharge port 43 are arranged in sequence on the bottom plate, and the second discharge port 42 is located between the first discharge port 41 and the third discharge port 43. The first discharge port 41 is farthest from the opening of the box body 1, and the third discharge port 43 is closest to the opening of the box body 1, so as to facilitate the blowing and separation of the mixed material.

[0034] More preferably, a screen plate 7 is liftably provided above the bottom plate of the box body 1, and screen holes are provided on the screen plate 7. The screen plate 7 is repeatedly lifted and lowered to achieve vertical vibration, and then the material is allowed to pass downward through the first discharge port 41, the second discharge port 42 or the third discharge port 43, thereby filtering and removing impurities from the material, which is beneficial to improving the quality of the tobacco.

[0035] In one example, the screen plate 7 is arranged in a continuous curved shape along the arrangement direction of the first discharge port 41, the second discharge port 42 and the third discharge port 43, and the screen plate 7 is continuously curved along the direction away from the opening of the box body 1 to form a wave shape. For the continuously curved shape, there are at least 10 peaks in the first area 31, the second area 32 and the third area 33. In this way, the material can be restricted in position at the trough. In the process of repeated lifting and vibration of the screen plate 7, mixing of materials between the first area 31, the second area 32 and the third area 33 can be avoided, which is conducive to the material being screened through the sieve holes downward.

[0036] For the up and down vibration of the screen plate 7, a driving device is arranged on the box body 1, and the output end of the driving device is connected to the screen plate 7, thereby driving the screen plate 7 to move up and down. For example, a driving motor can be arranged on the top of the top plate of the box body 1, and a plurality of driving rods 8 are connected to the top of the screen plate 7. The driving rods 8 vertically and movably penetrate the top plate upward, and the top ends of the driving rods 8 are connected together by a driving frame 9. The output end of the driving motor is connected to the driving frame 9 through a crank-connecting rod mechanism 10, thereby realizing the vibration of the screen plate 7 through the rotation of the driving motor.

[0037] In this embodiment, a vertical guide column 11 is provided on the box body 1, and a guide hole is provided on the screen plate 7. The guide hole and the guide column 11 cooperate with each other to limit the movement of the screen plate 7 along the vertical direction, so that the movement of the screen plate 7 is more vertical, which is conducive to the material being screened only downward, and avoiding the mixing of materials between the first area 31, the second area 32 and the third area 33. In this embodiment, the screen plate 7 is close to the bottom plate, and a guide column 11 can be provided on a side plate, and a transition plate 12 is provided on the side of the screen plate 7 corresponding to the guide column 11, and the transition plate 12 extends vertically upward, and a guide plate 13 is provided on the side of the transition plate 12 facing the guide column 11, and the guide hole is provided on the guide plate 13 to realize the vertical movement limit of the screen plate 7.

[0038] Preferably, it also includes a hopper 14, which is located above the feed port 2, and the bottom of the hopper 14 is connected to the feed port 2, and tobacco material can be supplied to the hopper 14 through other feeding equipment to complete the material supply. In this embodiment, the feed port 2 is arranged on the top plate, and the feed port 2 passes through the top plate. The feed port 2 is close to the opening of the box body 1 on the top plate, and the hopper 14 is connected to the top of the top plate, and the bottom of the hopper 14 is connected to the feed port 2. One end of the material conveying channel 6 is connected to the second discharge port 42, and the other end of the material conveying channel 6 extends to the top of the hopper 14. The mixed tobacco in the second area 32 is transported back to the hopper 14 through the material conveying channel 6 for screening again, which is beneficial to improving the tobacco and stem separation effect. In this embodiment, the material conveying channel 6 is preferably a wind conveying pipeline, and wind conveying driving components such as a fan are arranged in the wind conveying pipeline to facilitate the transportation of tobacco.

[0039] A conveyor belt 15 may also be provided below the third discharge port 43 of the third area 33 to convey the separated tobacco stems to a designated location.

[0040] Preferably, a filtering mechanism is further included, which is located below the first discharge port 41. The material discharged from the first discharge port 41 is tobacco. In order to further improve the purity of the tobacco, the tobacco material discharged from the first discharge port 41 is filtered again by the filtering mechanism.

[0041] In one example, the filtering mechanism includes a first sleeve 161 and a second sleeve 162, the first sleeve 161 and the second sleeve 162 are both cylindrically arranged, the second sleeve 162 is coaxially and rotatably arranged in the first sleeve 161, the second sleeve 162 is provided with sieve holes, the first sleeve 161 is provided with a feed port 17, and the material entering through the feed port 17 falls into the second sleeve 162 to complete the screening. In this embodiment, one end of the second sleeve 162 is sealed and the other end is open. A driving motor is arranged at the sealed end of the second sleeve 162, and the output end of the driving motor is coaxially connected to the second sleeve 162. The driving motor can be connected to the box body 1 through a fixing frame, and the first sleeve 161 can also be connected to the box body 1 through a fixing frame. The box body 1 is configured such that the second sleeve 162 can rotate in the first sleeve 161. The circumference of the second sleeve 162 is penetrated with sieve holes. The first sleeve 161 and the second sleeve 162 are both placed horizontally. A feed port 17 is provided on the top of the first sleeve 161. The feed port 17 is aligned with the first discharge port 41, and the feed port 17 is located below the first discharge port 41, so that the material discharged from the first discharge port 41 falls on the outer periphery of the second sleeve 162 through the feed port 17, and an accommodation gap is formed between the first sleeve 161 and the second sleeve 162. The accommodation gap can provide tobacco for movement. A spiral blade 18 is provided on the outer periphery of the second sleeve 162, and the inner peripheral side of the spiral blade 18 is connected to the second sleeve 16 2, the outer peripheral side of the spiral blade 18 is in sliding contact with the inner peripheral side of the first sleeve 161, and the second sleeve 162 rotates to drive the spiral blade 18 to rotate, thereby being able to move the tobacco material in the accommodating gap between the first sleeve 161 and the second sleeve 162, so that the tobacco can be screened through the sieve holes on the second sleeve 162, and the large-sized tobacco stems are discharged through the gap between the first sleeve 161 and the second sleeve 162 under the action of the spiral blade 18 and collected by the designated equipment, and the small-sized tobacco passes through the sieve holes on the second sleeve 162 and enters the second sleeve 162. A chute is provided, and the chute can be connected to the box body 1 through a fixing frame, and the chute extends into the second sleeve 1 Inside the tobacco chute 62, the chute includes a supporting plate 19 with a semicircular cross-section, the middle part of the supporting plate 19 is bent and arched downward, and an inclined plate 20 is arranged on the inner concave surface of the supporting plate 19. The inclined plate 20 is in the shape of a flat plate, and the supporting plate 19 coaxially extends into the second sleeve 162. Along the axial direction of the second sleeve 162, the height of the inclined plate 20 close to the opening end of the second sleeve 162 is less than the height of the inclined plate 20 close to the sealing end of the second sleeve 162, so that the tobacco filtered into the second sleeve 162 falls on the inclined plate 20 and is discharged from the second sleeve 162 through the inclined plate 20, which is convenient for collection by designated equipment. In this way, multi-level screening of tobacco can be achieved, which is beneficial to improving the purity of tobacco and improving the quality of tobacco.

[0042] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0043] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0044] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0045] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A tobacco stem and tobacco shred separation device, characterized in that: include: The box body has an internal cavity and an opening, the internal cavity of the box body is connected to the outside through the opening, and the opening is arranged on one side of the box body in the horizontal direction; A feed port, arranged in the box body and close to the opening; The internal cavity of the box body includes a first area, a second area and a third area arranged in sequence along a direction parallel to the opening, and the first area, the second area and the third area are respectively provided with a first discharge port, a second discharge port and a third discharge port; An air blowing assembly is disposed near the opening of the box body and is used to blow air into the internal cavity of the box body; The material conveying channel is arranged between the second discharge port and the feed port, and is used for conveying the material discharged from the second discharge port to the feed port.

2. The tobacco stem and shredded tobacco separation device according to claim 1, characterized in that: The box body comprises a bottom plate, a top plate and three side plates, which enclose the box body, and a first discharge port, a second discharge port and a third discharge port are arranged in sequence on the bottom plate.

3. The tobacco stem and shredded tobacco separation device according to claim 2, characterized in that: A screening plate is provided above the bottom plate of the box body in a liftable manner, and the screening plate has screening holes.

4. The tobacco stem and shredded tobacco separation device according to claim 3, characterized in that: The screening plate is arranged in a continuously curved shape along the arrangement direction of the first discharge opening, the second discharge opening and the third discharge opening.

5. The tobacco stem and shredded tobacco separation device according to claim 4, characterized in that: The box body is provided with a driving device, and the output end of the driving device is connected to the screening plate to drive the screening plate to rise and fall.

6. The tobacco stem and shredded tobacco separation device according to claim 5, characterized in that: The box body is provided with a vertical guide column, and the screen plate is provided with a guide hole. The guide hole and the guide column cooperate to limit the vertical movement of the screen plate.

7. The tobacco stem and shredded tobacco separation device according to claim 1, characterized in that: It also includes a hopper, which is connected to the feed port, one end of the material conveying channel is connected to the second discharge port, and the other end of the material conveying channel extends to above the hopper.

8. The tobacco stem and shredded tobacco separation device according to claim 1, characterized in that: It also includes a filtering mechanism, which is located below the first discharge port and is used to filter the material discharged from the first discharge port.

9. The tobacco stem and shredded tobacco separation device according to claim 8, characterized in that: The filtering mechanism includes a first sleeve and a second sleeve, the first sleeve and the second sleeve are both cylindrical, the second sleeve is coaxially and rotatably arranged in the first sleeve, the second sleeve is provided with sieve holes, and the first sleeve is provided with a feed port, and the material entering through the feed port falls into the second sleeve to complete the screening.

10. The tobacco stem and shredded tobacco separation device according to claim 9, characterized in that: An accommodating gap is formed between the first sleeve and the second sleeve. A spiral blade is arranged on the outer periphery of the second sleeve. The second sleeve drives the spiral blade to rotate to move the material in the accommodating gap between the first sleeve and the second sleeve.

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