Waste tobacco shred recovery device and recovery system

Abstract

The utility model belongs to the technical field of tobacco shred screening, and discloses a waste tobacco shred recovery device and system, the waste tobacco shred recovery device comprises a plurality of tobacco shred screens stacked in the vertical direction, each tobacco shred screen comprises a screen mesh, a protective plate, a baffle and a conveying channel, and the screen meshes of the adjacent tobacco shred screens are arranged at intervals in the vertical direction; a plurality of inner-ring screen holes and a plurality of outer-ring screen holes are sequentially distributed in each screen from the center to the circumferential direction, and the hole diameter of the inner-ring screen holes is smaller than that of the outer-ring screen holes; the baffle is vertically arranged on the screen and spirally extends from the circumferential edge where the multiple inner-ring screen holes are distributed to the circumferential edge of the screen to form a screening channel, the screening channel is used for guiding tobacco shreds to sequentially pass through the inner-ring screen holes and the outer-ring screen holes to move from inside to outside, tobacco shred accumulation can be avoided, and therefore the screening efficiency is improved. The protective plate is arranged in the circumferential direction of the screen in a surrounding mode, a collecting opening corresponding to an outlet of the screening channel is formed in the protective plate, the conveying channel communicates with the collecting opening, and qualified tobacco shreds can enter the conveying channel from the collecting opening through the screening channel.

Description

Technical Field

[0001] This utility model relates to the field of tobacco shredding technology, and in particular to a waste tobacco shredding recycling device and recycling system. Background Technology

[0002] In recent years, reducing consumption during cigarette production has become a crucial goal for the entire cigarette manufacturing process. During cigarette production, the rolling and forming equipment inevitably discards a large number of non-compliant cigarettes due to the need to meet stringent appearance inspection standards and precise cigarette weight requirements. The tobacco from these discarded cigarettes becomes waste tobacco, and this process significantly increases consumption during cigarette production. Therefore, the recycling and reuse of waste tobacco has become a critical aspect of consumption control in cigarette production.

[0003] However, existing tobacco screening devices have limited functionality and are unable to comprehensively and accurately screen and classify waste tobacco, resulting in a large amount of tobacco that meets production technical standards not being effectively separated, leading to a waste of resources. In addition, the screening process lacks efficiency and convenience, failing to meet the timely demand for waste tobacco recycling in large-scale cigarette production.

[0004] Therefore, there is an urgent need to propose a waste tobacco recycling device and system to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a waste tobacco recycling device and system that can comprehensively and accurately screen and classify waste tobacco, efficiently separate tobacco that meets production standards, meet the timeliness requirements of large-scale production for waste tobacco recycling, reduce waste, improve tobacco utilization rate, and reduce production costs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A waste tobacco recycling device includes multiple tobacco screens stacked vertically, each of the tobacco screens including a screen mesh, a guard plate, a baffle and a conveying channel, and the screen meshes of adjacent tobacco screens are spaced apart in the vertical direction;

[0008] Each of the screens has multiple inner ring screen holes and multiple outer ring screen holes distributed sequentially from the center to the periphery, and the diameter of the inner ring screen holes is smaller than the diameter of the outer ring screen holes;

[0009] The baffle is erected on the screen and extends in a spiral shape from the circumferential edge of the multiple inner ring screen holes to the circumferential edge of the screen, forming a screening channel;

[0010] The protective plate is arranged around the circumference of the screen, and the protective plate has a collection port corresponding to the outlet of the screening channel. The conveying channel is connected to the collection port.

[0011] Furthermore, the inner ring sieve holes of each sieve have the same aperture, and the outer ring sieve holes of each sieve have the same aperture.

[0012] Furthermore, the inner ring screen holes are circular holes, the outer ring screen holes are elongated holes, and the width of the outer ring screen holes is not less than the diameter of the inner ring screen holes.

[0013] Furthermore, the distribution area of ​​the inner ring sieve holes on the sieve mesh has a radial coverage range of 1 / 3 to 1 / 2 of the maximum radial dimension of the sieve mesh.

[0014] Furthermore, along the outward extension direction of the baffle, the angle between the collection port and the outlet of the screening channel and the center of the screen is less than 180 degrees.

[0015] Furthermore, the conveying channel and the guard plate are embeddedly connected.

[0016] Furthermore, the protective plates of adjacent tobacco sieves are detachably connected.

[0017] Furthermore, the multi-stage screening and recycling device for waste tobacco also includes multiple latches, and adjacent guard plates are detachably connected by multiple latches that are evenly spaced along the circumference of the guard plates.

[0018] Furthermore, each of the latches includes a pull ring, a connecting rod, a first fixing part, and a second fixing part. The first fixing part and the second fixing part are respectively disposed opposite to each other on adjacent guard plates. The connecting rod is rotatably connected to the first fixing part. The connecting rod has an unlocked position close to the second fixing part and a locked position away from the second fixing part. One end of the pull ring is rotatably connected to the connecting rod, and the other end can engage with the second fixing part. When the connecting rod is in the locked position, the pull ring can engage with the second fixing part. When the connecting rod is in the unlocked position, the pull ring can disengage from the second fixing part.

[0019] A waste tobacco recycling system includes a feeding device, a vibrating device, and a waste tobacco recycling device as described above. The feeding device is used to feed waste tobacco onto the top layer of the screen, and the vibrating device is used to drive multiple tobacco screens to vibrate horizontally.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a waste tobacco recycling device and system, including multiple tobacco sieves stacked vertically. Each tobacco sieve includes a screen, a guard plate, a baffle, and a conveying channel. The screens of adjacent tobacco sieves are spaced apart vertically. Each screen has multiple inner ring screen holes and multiple outer ring screen holes distributed sequentially from the center to the circumference. The diameter of the inner ring screen holes is smaller than that of the outer ring screen holes. The baffle is erected on the screen and extends spirally from the circumferential edge of the multiple inner ring screen holes to the circumferential edge of the screen, forming a screening channel for guiding the tobacco... The tobacco shreds move from the inside to the outside of the screen, passing sequentially through the inner and outer ring screen holes. This prolongs the residence time of the tobacco shreds on the screen surface, increasing the chances of screening qualified tobacco shreds and preventing them from directly passing through the screen holes and failing to be screened out. The spiral baffle ensures even distribution of the tobacco shreds, preventing accumulation and improving screening efficiency. A protective plate surrounds the circumference of the screen and has a collection port corresponding to the outlet of the screening channel. The conveying channel is connected to the collection port, allowing qualified tobacco shreds to pass through the screening channel and enter the conveying channel through the collection port for collection and reuse. The inner ring screen holes remove impurities that are too small, while the outer ring screen holes screen out qualified tobacco shreds. Under vibration, the tobacco shreds tend to be horizontal and move sequentially through the inner and outer ring screen holes along the spiral screening channel from the inside to the outside. This reduces the probability of qualified tobacco shreds passing through the outer ring screen holes due to angle. Qualified tobacco shreds pass through the screening channel and enter the conveying channel through the collection port for recycling. By setting up multiple vertically stacked tobacco sieves, qualified tobacco shreds in waste tobacco are screened in multiple stages, further reducing the probability of missing qualified tobacco shreds. This allows for comprehensive and accurate screening and classification of waste tobacco shreds, efficiently separating tobacco shreds that meet production standards, improving the recovery rate of qualified tobacco shreds, meeting the timeliness requirements of large-scale production for waste tobacco shred recycling, reducing tobacco shred waste, improving tobacco shred utilization, and lowering production costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the waste tobacco recycling device of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the waste tobacco recycling device of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the sieve of this utility model;

[0025] Figure 4 This is a schematic diagram of the locking mechanism of this utility model.

[0026] In the picture:

[0027] 1. Screen; 11. Inner ring screen holes; 12. Outer ring screen holes; 2. Protective plate; 21. Collection port; 3. Baffle; 4. Conveying channel; 5. Lock; 51. Pull ring; 52. Connecting rod; 53. First fixing part; 54. Second fixing part. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] like Figures 1-3As shown, this embodiment provides a waste tobacco recycling device, including multiple tobacco screens stacked vertically. Each tobacco screen includes a screen 1, a guard plate 2, a baffle 3, and a conveying channel 4. The screens 1 of adjacent tobacco screens are spaced apart vertically. Each screen 1 has multiple inner ring screen holes 11 and multiple outer ring screen holes 12 distributed from the center to the periphery. The diameter of the inner ring screen holes 11 is smaller than the diameter of the outer ring screen holes 12. The baffle 3 is erected on the screen 1 and spirals from the periphery of the multiple inner ring screen holes 11 towards the screen. The circumferential edge of screen 1 extends to form a screening channel, which guides the tobacco shreds to move from the inside to the outside through the inner ring screen holes 11 and the outer ring screen holes 12 on the surface of screen 1. The spiral baffle 3 can make the tobacco shreds evenly distributed and avoid tobacco shreds accumulation, thereby improving screening efficiency. The guard plate 2 is arranged around the circumference of screen 1, and the guard plate 2 has a collection port 21 corresponding to the outlet of the screening channel. The conveying channel 4 is connected to the collection port 21. Qualified tobacco shreds can enter the conveying channel 4 from the collection port 21 through the screening channel, thereby being collected and reused.

[0033] It is easy to understand that, due to the long and thin shape of tobacco shreds, some qualified tobacco shreds can easily pass directly through the sieve holes due to the angle, resulting in qualified tobacco shreds not being recycled. Therefore, in this embodiment, the aperture of the inner ring sieve hole 11 is set to be smaller than the aperture of the outer ring sieve hole 12, and the baffle 3 extends in a spiral shape from the circumferential edge of the multiple inner ring sieve holes 11 to the circumferential edge of the screen 1. When recycling waste tobacco shreds, the tobacco sieve vibrates horizontally under manual or automatic drive. First, the waste tobacco shreds are put onto the screen 1 of the top layer tobacco sieve. Impurities that are too small can pass through the inner ring sieve hole 11 and enter the lower layer sieve 1. The remaining tobacco shreds move from the inside to the outside along the spiral screening channel under vibration, passing through the inner ring sieve hole 11 and the outer ring sieve hole 12 in sequence. The inner ring sieve hole 11 removes impurities that are too small, and the outer ring sieve hole 12 removes impurities that are too small. The process involves producing qualified tobacco shreds. Under vibration, the tobacco shreds tend to be horizontal, reducing the probability of qualified tobacco shreds passing through the outer ring screen holes 12 due to angle. During the movement of the tobacco shreds from the inside out, unqualified tobacco shreds shorter than the diameter of the outer ring screen holes 12 pass through and enter the lower screen 1. Qualified tobacco shreds longer than the diameter of the outer ring screen holes 12 can pass through the screening channel and enter the conveying channel 4 through the collection port 21, thus being recycled. The spiral baffle 3 prolongs the residence time of the tobacco shreds on the surface of the screen 1, increasing the screening opportunity for qualified tobacco shreds and preventing them from directly penetrating the screen holes and failing to be screened out. Qualified tobacco shreds that enter the lower screen 1 due to angle tend to be horizontal under vibration, thus passing through the screening channel of the next screen 1 and entering the corresponding conveying channel 4 through the corresponding collection port 21.

[0034] By setting up multiple vertically stacked tobacco sieves, qualified tobacco shreds in waste tobacco are screened in multiple stages, further reducing the probability of missing qualified tobacco shreds. This allows for comprehensive and accurate screening and classification of waste tobacco shreds, efficiently separating tobacco shreds that meet production standards, improving the recovery rate of qualified tobacco shreds, meeting the timeliness requirements of large-scale production for waste tobacco shred recycling, reducing tobacco shred waste, improving tobacco shred utilization, and lowering production costs.

[0035] Furthermore, the waste tobacco recycling device also includes a tobacco collection box (not shown in the figure), and the outlet of each conveying channel 4 is connected to the tobacco collection box to facilitate the collection of qualified tobacco.

[0036] In this embodiment, the inner ring screen holes 11 of each screen 1 have the same aperture, and the outer ring screen holes 12 of each screen 1 have the same aperture. The multi-layer screen 1 performs multi-stage screening of tobacco shreds. The screening effect of each layer of screen 1 is stable and reliable, making the multi-stage screening process more controllable. It can screen out qualified tobacco shreds of the same size standard, which significantly improves the tobacco shred recovery rate.

[0037] In other embodiments, depending on the requirements for tobacco shredding, the diameter of the outer ring mesh 12 of the multiple meshes 1 can be set to gradually decrease from top to bottom, so as to grade and recycle tobacco shredding of different sizes. This is not limited here.

[0038] In this embodiment, the waste tobacco recycling device includes three tobacco sieves stacked vertically, which can perform three-stage screening of waste tobacco, balancing screening efficiency and recovery rate. Optionally, the number of tobacco sieves can also be four, six, or seven, and is not limited here.

[0039] like Figure 3 As shown, the inner ring sieve hole 11 is a circular hole, and the outer ring sieve hole 12 is a long strip hole. The width of the outer ring sieve hole 12 is not less than the diameter of the inner ring sieve hole 11. The inner ring sieve hole 11 is used to remove impurities that are too small in size, so as to avoid impurities from mixing into qualified tobacco and affecting the quality of the cigarette. The outer ring sieve hole 12 is adapted to the shape of the tobacco, allowing larger tobacco to pass through, improving the screening ability of tobacco of different shapes, making the whole screening process more comprehensive, so as to be able to screen out qualified tobacco that meets the length requirements.

[0040] In this embodiment, the radial coverage area of ​​the inner ring sieve holes 11 on the sieve 1 is 1 / 3 to 1 / 2 of the maximum radial dimension of the sieve 1. This makes the distribution ratio of the inner ring sieve holes 11 to the outer ring sieve holes 12 reasonable. Most of the impurities that are too small can be concentrated in the inner ring area for preliminary screening, ensuring that impurities will not be mixed with large-sized tobacco shreds and enter the outer ring sieve holes 12 due to unreasonable sieve hole distribution. This improves the accuracy of screening and ensures the quality of qualified tobacco shreds. In addition, the appropriate distribution diameter of the inner ring sieve holes 11 avoids tobacco shreds from being too small in the inner ring area, and also prevents large-sized tobacco shreds from being mixed in too early in the area. This allows the tobacco shreds to move efficiently and orderly from the inner ring to the outer ring on the sieve 1, which helps to speed up the screening process and increase the screening output per unit time.

[0041] like Figure 1 As shown, along the extension direction of the baffle 3 from the inside to the outside, the angle between the outlet of the collection port 21 and the outlet of the screening channel and the center of the screen 1 is less than 180 degrees, making the layout of the collection port 21 and the outlet of the screening channel more compact and reasonable, so that qualified tobacco can enter the collection port 21 with a shorter path, improving the tobacco collection efficiency and avoiding the tobacco from being blocked or accumulated between the baffle 3 and the guard plate 2.

[0042] Furthermore, the conveying channel 4 and the guard plate 2 are embedded, which provides a strong connection. Through tight fitting, the gap between the guard plate 2 and the conveying channel 4 is much smaller than the length and diameter of the tobacco shreds. This effectively resists the vibration and impact force of the tobacco shreds during the operation of the device, ensuring a firm connection between the two, preventing tobacco shred leakage, and ensuring the stable operation of the screening and recycling work. In terms of installation and maintenance, the embedded connection is easy to operate. It can be directly embedded during installation, and the two can be easily separated for individual repair or replacement during maintenance, which helps to reduce maintenance costs and difficulty.

[0043] Furthermore, the protective plates 2 of adjacent tobacco screens are detachably connected, and each tobacco screen is an independent mechanical unit. The detachable connection method facilitates the combination, addition, reduction, maintenance or replacement of multi-layer tobacco screens, making it easy to quickly adapt to different screening requirements and improving the versatility and adaptability of the device.

[0044] Specifically, the multi-stage screening and recycling device for waste tobacco also includes multiple latches 5. Adjacent guard plates 2 are detachably connected by multiple latches 5 evenly spaced along the circumference of the guard plates 2. The multiple latches 5 evenly spaced along the circumference of the guard plates 2 can ensure that the adjacent guard plates 2 are subjected to relatively balanced forces in all directions, ensuring that the connection between the adjacent guard plates 2 is tight and stable, preventing the guard plates 2 from loosening or misaligning during shaking, ensuring the stability of the entire screening device structure, and thus ensuring the normal operation of the screening work.

[0045] like Figure 1 and Figure 4As shown, each latch 5 includes a pull ring 51, a connecting rod 52, a first fixing part 53, and a second fixing part 54. The first fixing part 53 and the second fixing part 54 are respectively disposed opposite to each other on adjacent guard plates 2. The connecting rod 52 is rotatably connected to the first fixing part 53. The connecting rod 52 has an unlocked position close to the second fixing part 54 and a locked position away from the second fixing part 54. One end of the pull ring 51 is rotatably connected to the connecting rod 52, and the other end can be engaged with the second fixing part 54. When the connecting rod 52 is in the locked position, the pull ring 51 can be engaged with the second fixing part 54. When the connecting rod 52 is in the unlocked position, the pull ring 51 can be separated from the second fixing part 54. By rotating the connecting rod 52 to switch between the unlocked and locked positions, and with the engaging and disengaging actions of the pull ring 51 and the second fixing part 54, the operator's operation becomes extremely convenient, greatly improving the efficiency of maintenance, repair, and adjustment of the device according to different needs. Furthermore, the rotating connection between the connecting rod 52 and the first fixing part 53, and between the pull ring 51 and the connecting rod 52, can buffer vibrations and impacts during operation, reduce damage to the lock 5, and extend its service life. In addition, the structure is compact, occupies little space, does not affect the overall layout and space utilization of the device, and helps to maintain the compact and stable structure of the device.

[0046] Furthermore, this embodiment also provides a waste tobacco recycling system, including a feeding device, a vibrating device, and a waste tobacco recycling device according to any of the above embodiments. The feeding device is used to feed waste tobacco onto the top screen 1, and the vibrating device is used to drive multiple tobacco screens to vibrate horizontally, making the tobacco tend to be horizontal, preventing qualified tobacco from not being screened out due to angle, thereby enabling qualified tobacco to be recycled and reused. By applying the above-mentioned waste tobacco recycling device, waste tobacco can be comprehensively and accurately screened and classified, efficiently separating tobacco that meets production standards, improving the recycling rate of qualified tobacco, meeting the timeliness requirements of large-scale production for waste tobacco recycling, reducing tobacco waste, improving tobacco utilization, and lowering production costs.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A waste tobacco recycling device, characterized in that, It includes multiple tobacco sieves stacked vertically, each of which includes a screen (1), a guard plate (2), a baffle (3) and a conveying channel (4), with the screens (1) of adjacent tobacco sieves spaced apart vertically. Each of the screens (1) has a plurality of inner ring screen holes (11) and a plurality of outer ring screen holes (12) distributed from the center to the periphery. The aperture of the inner ring screen holes (11) is smaller than the aperture of the outer ring screen holes (12). The baffle (3) is erected on the screen (1) and extends in a spiral shape from the circumferential edge of the multiple inner ring screen holes (11) to the circumferential edge of the screen (1) to form a screening channel; The guard plate (2) is arranged around the circumference of the screen (1), and the guard plate (2) has a collection port (21) corresponding to the outlet of the screening channel. The conveying channel (4) is connected to the collection port (21).

2. The waste tobacco recycling device according to claim 1, characterized in that, The inner ring sieve holes (11) of each of the sieves (1) have the same aperture, and the outer ring sieve holes (12) of each of the sieves (1) have the same aperture.

3. The waste tobacco recycling device according to claim 2, characterized in that, The inner ring sieve hole (11) is a circular hole, the outer ring sieve hole (12) is a long strip hole, and the width of the outer ring sieve hole (12) is not less than the diameter of the inner ring sieve hole (11).

4. The waste tobacco recycling device according to claim 2, characterized in that, The distribution area of ​​the inner ring sieve holes (11) on the sieve (1) has a radial coverage range of 1 / 3 to 1 / 2 of the maximum radial dimension of the sieve (1).

5. The waste tobacco recycling device according to claim 1, characterized in that, Along the outward extension direction of the baffle (3), the angle between the collection port (21) and the outlet of the screening channel and the center of the screen (1) is less than 180 degrees.

6. The waste tobacco recycling device according to claim 1, characterized in that, The conveying channel (4) and the guard plate (2) are embeddedly connected.

7. The waste tobacco recycling device according to any one of claims 1 to 6, characterized in that, The protective plates (2) of the adjacent tobacco sieves are detachably connected.

8. The waste tobacco recycling device according to claim 7, characterized in that, The waste tobacco multi-stage screening and recycling device also includes multiple latches (5), and adjacent guard plates (2) are detachably connected by multiple latches (5) evenly spaced along the circumference of the guard plate (2).

9. The waste tobacco recycling device according to claim 8, characterized in that, Each of the latches (5) includes a pull ring (51), a connecting rod (52), a first fixing part (53), and a second fixing part (54). The first fixing part (53) and the second fixing part (54) are respectively disposed opposite to each other on adjacent guard plates (2). The connecting rod (52) is rotatably connected to the first fixing part (53). The connecting rod (52) has an unlocking position close to the second fixing part (54) and a locking position away from the second fixing part (54). One end of the pull ring (51) is rotatably connected to the connecting rod (52), and the other end can be engaged with the second fixing part (54). When the connecting rod (52) is in the locking position, the pull ring (51) can be engaged with the second fixing part (54). When the connecting rod (52) is in the unlocking position, the pull ring (51) can be separated from the second fixing part (54).

10. A waste tobacco recycling system, characterized in that, It includes a feeding device, a vibrating device, and a waste tobacco recycling device as described in any one of claims 1 to 9, wherein the feeding device is used to feed waste tobacco onto the top layer of the screen (1), and the vibrating device is used to drive the multiple tobacco screens to vibrate in the horizontal direction.

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