Waste cigarette cut tobacco recovery equipment

Abstract

The waste cigarette cut tobacco recovery equipment comprises a lower conveying belt, and a plurality of positioning grooves are annularly and longitudinally formed in the outer surface of the lower conveying belt at intervals in parallel; the transmission length of the upper conveying belt is smaller than that of the lower conveying belt, the upper conveying belt is arranged above the lower conveying belt at intervals, multiple convex ribs are annularly and longitudinally arranged on the outer surface at intervals in parallel, and the distance between the upper conveying belt and the lower conveying belt is adjustable; the shallow slitting device is located above the lower conveying belt and arranged at one end of the upper conveying belt, and the distance between a blade and a positioning groove of the lower conveying belt can be adjusted; when the upper conveying belt rotates, the upper conveying belt convex groove corresponds to the lower conveying belt concave groove and extends into the concave groove to synchronously and oppositely move with the lower conveying belt; the distance between the blade and the positioning groove bottom of the lower conveying belt can be adjusted according to the thickness of cigarettes, the distance between the convex grooves of the upper conveying belt and the distance between the concave grooves of the lower conveying belt can be adjusted according to the thickness of the cigarettes, waste cigarettes with different diameters can obtain cutting surfaces with similar heights after being extruded, the uniform cutting depth is ensured, excessive sectioning and cut-off of tobacco shreds are avoided, and the production efficiency is improved. The tobacco shred recovery quality and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of tobacco machinery and equipment technology, and in particular to a waste cigarette and tobacco shred recycling device. Background Technology

[0002] The cigarette production process generates a considerable number of substandard waste cigarettes. The tobacco contained in these waste cigarettes still has high utilization value and needs to be recycled. Tobacco recycling involves separating the tobacco from the waste cigarettes.

[0003] Currently, there are many methods for recycling tobacco from waste cigarettes, including centralized steam wetting, water wetting, percussion, and shallow-cut strip cutting.

[0004] The shallow-cut strip cutting method can cut the cigarette axis through the shallow-cut strip cutting device, so that the outer packaging of the cigarette can be fully unfolded and the internal tobacco can be fully extracted, such as the slim cigarette recycling device in patent application number 2019110659658.

[0005] However, due to the wide variety of cigarette types and diameters available today, existing recycling devices, including those using shallow-cutting methods, require adjustments to ensure that all cigarette sizes are adequately cut when recycling cigarettes of different diameters. This necessitates setting the shallow-cutting device to cut the smallest diameter cigarettes. However, this can lead to over-cutting of larger diameter cigarettes, as the shallow-cutting device may sever the tobacco fibers within the coarser cigarettes, thus affecting the recycling efficiency. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned problems by providing a waste cigarette and tobacco recycling device.

[0007] To achieve the above objectives, the technical solution of the present invention is: a waste cigarette and tobacco shred recycling device, comprising: The lower conveyor belt has multiple positioning grooves arranged in a ring-shaped longitudinal parallel interval on its outer surface. The upper conveyor belt has a shorter transmission length than the lower conveyor belt and is spaced above the lower conveyor belt. Its outer surface has multiple ribs that are parallel to each other in a ring and correspond to the positioning grooves of the lower conveyor belt. The shallow cutting device is located above the lower conveyor belt and at one end of the upper conveyor belt. The roller is parallel to the lower conveyor belt, and the outer circumferential surface is provided with blades that correspond one-to-one with the positioning grooves. The distance between the blades and the positioning grooves can be adjusted. When the upper conveyor belt rotates, the rib extends partially into the positioning groove at least when it passes one end near the shallow cutting strip device. In the direction perpendicular to the lower conveyor belt, the point where the blade is closest to the bottom of the positioning groove is located between the point where the rib is closest to the bottom of the positioning groove and the opening of the positioning groove. This allows waste cigarettes of different diameters driven by the lower conveyor belt to be squeezed by the rib of the upper conveyor belt to obtain cutting surfaces of similar heights, so that the cutting depth of the blade on the cutting surfaces of waste cigarettes of different diameters is similar.

[0008] Furthermore, along the direction perpendicular to the lower conveyor belt, the distance between the point where the convex rib is far from the bottom of the positioning groove and the bottom of the positioning groove is L, and the minimum diameter of the waste cigarette stick is D, then D≥L>0.

[0009] Furthermore, the lower conveyor belt and the upper conveyor belt are arranged in parallel.

[0010] Furthermore, the upper conveyor belt and the lower conveyor belt are set at an angle, and the distance between the end of the upper conveyor belt near the shallow cutting device and the lower conveyor belt is smaller than the distance between the other end of the upper conveyor belt and the lower conveyor belt.

[0011] Furthermore, the cross-section of the positioning groove is U-shaped; the U-shaped structure includes two sides and a bottom edge connected to the bottom of the two sides, the two sides are arranged at an inclined angle, and the two sides are symmetrical about the perpendicular bisector of the bottom edge; and the transition connection between the two sides and the bottom edge is rounded.

[0012] Furthermore, both ends of the roller shaft of the shallow cutting device are fitted with adjusting seats that slide and adjust along the direction perpendicular to the lower conveyor belt.

[0013] Furthermore, located below the lower conveyor belt, one end of the lower conveyor belt near the shallow cutting device extends beyond directly below the shallow cutting device, and a support roller corresponding to the shallow cutting device is also provided below the lower conveyor belt.

[0014] Furthermore, a bracket is also installed below the lower conveyor belt, corresponding to the upper conveyor belt.

[0015] Furthermore, a loosening device is connected to one end of the lower conveyor belt near the shallow cutting device. The lower conveyor belt can convey materials to the loosening device, which is used to beat and loosen the waste cigarettes conveyed by the lower conveyor belt and cut by the blades, causing the tobacco to fall off.

[0016] Furthermore, the loosening device includes two loosening rollers spaced apart in a vertical direction, a tile frame partially surrounding the two loosening rollers on the side away from the lower conveyor belt, and an overlapping plate that overlaps with the upper tile frame. The other end of the overlapping plate extends directly above the lower conveyor belt, and a loosening plate is provided on the outside of each loosening roller.

[0017] The waste cigarette and tobacco recycling equipment disclosed in this invention has the following advantages compared with the prior art: 1. Effectively solves the problem that existing shallow-cutting devices either fail to adequately cut small-diameter cigarettes or over-cut large-diameter cigarettes, resulting in tobacco shreds, when recycling mixed waste cigarettes of different diameters. By using an angled arrangement of the upper and lower conveyor belts and the cooperation of ribs and positioning grooves, the height of the cut surface after extrusion of cigarettes of different diameters is made uniform, ensuring that the cutting depth of the shallow-cutting device is consistent, and taking into account both adequate cutting of small-diameter cigarettes and the integrity of tobacco shreds in large-diameter cigarettes.

[0018] 2. The angled arrangement creates a progressive extrusion space, avoiding the problem of flattening and premature scattering of tobacco shreds caused by sudden strong compression of waste cigarettes. At the same time, the angle is precisely adjusted through empirical formulas to adapt to different working conditions, ensuring a smooth and uniform extrusion process, further optimizing the cutting surface forming effect, and ensuring smooth slitting operations.

[0019] 3. By ensuring that the cigarette packaging is fully unfolded through uniform cutting depth, and in conjunction with the subsequent loosening device, the tobacco shreds and cigarette paper can be efficiently separated. This ensures thorough tobacco shred recycling while preventing the tobacco shreds from being cut, thereby improving the integrity rate of the tobacco shreds and recycling efficiency, making full use of the tobacco shred resources in waste cigarettes, and reducing production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a waste cigarette and tobacco recycling device according to the present invention.

[0021] Figure 2 This is a cross-sectional structural diagram of a waste cigarette and tobacco shred recycling device according to the present invention.

[0022] Figure 3 This is a partially enlarged structural diagram of the loosening device in a waste cigarette tobacco recycling equipment of the present invention.

[0023] Figure 4 This is a partially enlarged structural diagram of a waste cigarette and tobacco shred recycling device of the present invention, showing cigarettes mounted on the lower conveyor belt.

[0024] Figure 5 This is a schematic diagram of the cooperation structure between the shallow cutting device and the lower conveyor belt in a waste cigarette tobacco recycling equipment of the present invention.

[0025] Figure 6 This is a partial structural diagram of the upper and lower conveyor belt cross-sections in a waste cigarette and tobacco shred recycling device according to the present invention.

[0026] Figure 7 This is a partial cross-sectional view of the lower conveyor belt in this invention.

[0027] In the diagram: 1. Drive unit; 2. Frame; 20. Transparent window; 21. Support roller; 22. Bracket; 3. Lower conveyor belt; 30. Positioning groove; 4. Upper conveyor belt; 40. Raised rib; 5. Shallow cutting strip device; 50. Adjusting seat; 51. Adjusting component; 52. Blade; 6. Loosening device; 60. Tile frame one; 61. Loosening roller one; 62. Loosening plate; 63. Tile frame two; 64. Loosening roller two; 65. Guide plate; 66. Overlap plate; 7. Waste cigarette; 70. Fine cigarette; 71. Coarse cigarette. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the invention in a schematic manner, and therefore only show the components relevant to the invention.

[0029] refer to Figures 1 to 6 This application provides a waste cigarette tobacco recycling device, which is mainly designed to address the problem in the prior art that the coarse cigarette 71 is cut too deeply when recycling tobacco shreds from waste cigarettes 7 of different diameters, resulting in the tobacco shreds being cut and damaged. The specific structure and working principle of the recycling device will be described in detail below.

[0030] This application provides a waste cigarette tobacco recycling device, referenced... Figure 1 The system includes a frame 2, which consists of two vertically arranged, parallel, and spaced side plates and rigid connecting rods connecting the side plates, forming a rigid, integral frame 2 that provides the mounting foundation for subsequent component installation. It also includes a lower conveyor belt 3, an upper conveyor belt 4, and a shallow-cutting device 5. The two rollers of both the lower conveyor belt 3 and the upper conveyor belt 4 are rotatably engaged with the side plates of the frame 2. (Refer to...) Figures 4 to 6The lower conveyor belt 3 has multiple positioning grooves 30 spaced parallel to each other on its outer surface. These grooves extend along the conveying direction and are used to laterally limit and position the waste cigarette sticks 7, ensuring stable transport along the grooves and preventing displacement or overturning during transport and cutting. This ensures that each waste cigarette stick 7 enters its corresponding cutting station. The upper conveyor belt 4 has a shorter transmission length than the lower conveyor belt 3 and is positioned above it at intervals. Its outer surface has protruding ribs 40 corresponding to the positioning grooves 30. These ribs 40 work in conjunction with the positioning grooves 30 to compress and position the waste cigarette sticks 7. The shallow-cutting device 5 is located above the lower conveyor belt 3 and at one end of the upper conveyor belt 4. The rollers of the shallow-cutting device 5 are parallel to the lower conveyor belt 3 and also rotate in conjunction with the side plate. Its outer circumferential surface is provided with blades 52 corresponding one-to-one with the positioning grooves 30. The blades 52 are used to axially cut the waste cigarette sticks 7 within the positioning grooves 30. A drive device 1 is provided on the frame 2 to drive the upper conveyor belt 4, the lower conveyor belt 3, and the shallow-cutting device 5 to rotate. When the upper conveyor belt 4 rotates, the protruding ribs 40 partially extend into the positioning grooves 30, at least at the end closest to the shallow-cutting device 5. In a direction perpendicular to the lower conveyor belt 3, the point where the blades 52 are closest to the bottom of the positioning groove 30 is located between the point where the protruding ribs 40 are closest to the bottom of the positioning groove 30 and the opening of the positioning groove 30. (Reference) Figure 5 , Figure 6 During operation, waste cigarettes 7 of different diameters conveyed by the lower conveyor belt 3 are compressed by the convex ribs 40 of the upper conveyor belt 4. The larger diameter coarse cigarettes 71 are pressed more by the convex ribs 40. Since cigarettes are compressible, the larger diameter coarse cigarettes 71 can undergo greater deformation, while the smaller diameter fine cigarettes 70 do not deform or deform less. This allows cigarettes of different sizes to form cut surfaces of similar height. After being pressed by the convex ribs 40, the cigarettes continue to be conveyed by the lower conveyor belt 3 and pass through the shallow cutting device 5. The blades 52 on the shallow cutting device 5 have the same diameter. When the blades 52 cut the cutting surface, the cutting depth of waste cigarettes 7 of different diameters is similar. This ensures that the smallest diameter waste cigarettes 7 are fully cut while avoiding over-cutting of larger diameter waste cigarettes 7. This minimizes the cutting of internal tobacco by the blades 52 of the shallow cutting device 5, ensuring the quality and recovery rate of tobacco recycling. It solves the technical problem that the traditional shallow cutting device 5 cutting method cannot be adapted to the mixed recycling of cigarettes of multiple diameters and is prone to cutting tobacco.

[0031] In a specific implementation, both the upper conveyor belt 4 and the lower conveyor belt can be made of materials such as rubber and polyurethane, wherein the positioning groove 30 and the protruding rib 40 are integrally formed with the upper conveyor belt 4 and the lower conveyor belt 3, respectively.

[0032] Furthermore, as a preferred embodiment, along the direction perpendicular to the lower conveyor belt 3, the distance between the point of the protruding rib 40 and the bottom of the positioning groove 30 and the bottom of the positioning groove 30 is L, and the minimum diameter of the waste cigarette stick 7 is Dmin, then Dmin≥L>0. In practical implementation, the lower conveyor belt 3 is generally set to a horizontal or slightly inclined state (the end near the shallow cutting device 5 is slightly lower than the other end). Taking the horizontal state as an example, the distance L is the distance from the lowest point of the bottom of the positioning groove 30 to the rib 40. This dimension limit can ensure that the rib 40 will not interfere with the bottom of the positioning groove 30 after it extends into the positioning groove 30. At the same time, it can effectively squeeze and limit the smallest diameter waste cigarette 7, ensuring that the smallest diameter waste cigarette 7 can also be squeezed to the set height in the positioning groove 30. This avoids the waste cigarette 7 being over-squeezed and deformed due to the rib 40 extending too deep, and also avoids the inability to achieve the effect of uniform cutting surface height of cigarettes of different diameters due to the rib 40 extending too shallow. Through the limitation of this dimension relationship, it is further ensured that the cutting surface height of waste cigarettes of different diameters is similar after compression, thus improving the uniformity and stability of the cutting.

[0033] Furthermore, as a specific implementation, the lower conveyor belt 3 and the upper conveyor belt 4 are arranged in parallel. The parallel arrangement structure allows the ribs 40 of the upper conveyor belt 4 to extend into the positioning grooves 30 of the lower conveyor belt 3 evenly and synchronously. The fit gap between the ribs 40 and the positioning grooves 30 remains consistent throughout the entire conveying path. The waste cigarettes 7 are uniformly compressed throughout the conveying process, which can reduce the problem of cigarettes sticking up when they are locally compressed, ensuring that the waste cigarettes 7 are conveyed smoothly and the height of the cut surfaces is more consistent. At the same time, the parallel structure facilitates the assembly, debugging and subsequent maintenance of the equipment, simplifies the overall structure of the equipment, and reduces the difficulty of processing and manufacturing.

[0034] The upper conveyor belt 4 and the lower conveyor belt 3 are set at an angle, and the distance between the end of the upper conveyor belt 4 near the shallow cutting device 5 and the lower conveyor belt 3 is less than the distance between the other end of the upper conveyor belt 4 and the lower conveyor belt 3.

[0035] The angled arrangement creates a progressive compression space between the upper conveyor belt 4 and the lower conveyor belt 3. The waste cigarette 7 enters the compression area from the end of the upper conveyor belt 4 away from the shallow cutting device 5. As it is conveyed towards the shallow cutting device 5, it is gradually compressed by the ribs 40 and the positioning grooves 30 until it reaches the set compression height when it approaches the shallow cutting device 5, forming a smooth compression transition. This avoids the waste cigarette 7 being subjected to strong compression at once, which could cause the cigarette to be flattened or the tobacco to fall off prematurely. At the same time, the progressive compression can better adapt to waste cigarettes 7 of different diameters, further optimize the cutting surface forming effect, and ensure that the cutting operation is carried out smoothly.

[0036] In one specific implementation, the upper conveyor belt 4 and the lower conveyor belt 3 are arranged at an angle, with the suitable angle θ between them being 3° to 10° (preferably 5°). The setting of this angle is directly related to the cigarette diameter, the effective length of the upper conveyor belt 4, and the variation in the distance between the two conveyor belts.

[0037] When the difference in cigarette diameter is greater, the included angle can be appropriately increased within the above range to ensure a gradual extrusion effect. When the effective conveying length of the upper conveyor belt 4 is longer, a smaller included angle can be used to achieve a smooth transition. When the distance between the end of the upper conveyor belt 4 away from the shallow cutting device 5 and the lower conveyor belt 3 is greater, and the distance between the end of the upper conveyor belt 4 and the end closer to the shallow cutting device 5 is smaller, the included angle should be increased accordingly to ensure that the cigarette is gradually and evenly extruded from entering the extrusion area to before the cutting is completed.

[0038] With the aforementioned angle setting, a gradually decreasing conveying gap is formed between the upper conveyor belt 4 and the lower conveyor belt 3. After the waste cigarettes 7 enter the space between the two conveyor belts, they are gradually squeezed during the conveying process. This prevents the cigarettes from being flattened, the tobacco from falling off prematurely, or the cigarette structure from being damaged due to instantaneous strong compression. At the same time, it can stably squeeze waste cigarettes 7 of different diameters to a uniform cutting height, so that the subsequent shallow cutting device 5 can cut at a consistent depth. This ensures that small-diameter cigarettes such as thin cigarettes are fully cut, while avoiding the over-cutting of coarse cigarettes that would sever the tobacco, thereby improving the integrity rate of the tobacco and the recycling quality.

[0039] As a specific implementation method, refer to Figures 5 to 7 The overall cross-section of the positioning groove 30 is U-shaped; the U-shaped structure includes two side edges 301 and a bottom edge 302 connected to the bottom of the two side edges 301. The two side edges 301 are arranged at an inclined angle, and the two side edges 301 are axially symmetrical about the perpendicular bisector of the bottom edge 302; and the transition connection between the two side edges 301 and the bottom edge 302 is rounded. Specifically, the cross-section of the rib 40 is adapted to the contour of the positioning groove 30, and is also U-shaped. The U-shaped positioning groove 30 has two sides arranged at an angle, thus forming a structure that is wider at the top and narrower at the bottom. This structure can adaptively center cylindrical waste cigarettes 7 of different diameters. Regardless of the cigarette diameter, it can be stably held in the middle position of the U-shaped positioning groove 30, ensuring that the cigarette axis corresponds accurately with the cutting position of the blade 52. When the U-shaped rib 40 and the U-shaped positioning groove 30 are engaged, the positioning groove wraps around the two sides of the cigarette, and the rib 40 squeezes the middle of the cigarette, forming a wrapping compression. The force is more even, and the cigarette is less likely to deviate or tip over. In addition, the U-shaped structure is easy to process and has good guidance during engagement, which can ensure that the rib 40 smoothly extends into the positioning groove 30, improving the engagement accuracy and operational reliability. Furthermore, the U-shaped rib 40 can press the cigarette out of the groove. The bottom surface of the groove is the cutting surface. The groove has a large opening and a small bottom, making it easier for the blade 52 to cut.

[0040] As a specific implementation method, refer to Figure 1 , Figure 2 , Figure 5 The roller shaft of the shallow cutting device 5 is rotatably fitted with adjusting seats 50 at both ends, which slide and adjust along the direction perpendicular to the lower conveyor belt 3. The adjusting seats 50 are vertically guided with the side plate of the frame 2. The blade shaft of the shallow cutting device 5 is rotatably fitted with the adjusting seats 50 through bearings at both ends. The adjusting seats 50 are non-rotatably fitted with the side plate. The side plate is rotatably fitted with an adjusting component 51 with an axial anti-slip setting. The adjusting component 51 is threadedly connected to the adjusting seat 50, so the position of the adjusting seat 50 can be adjusted by rotating the adjusting component 51. The adjusting seat 50 can drive the entire shallow cutting device 5 to move along the direction perpendicular to the lower conveyor belt 3, thereby adjusting the relative distance between the blade 52 and the bottom of the positioning groove 30 and the protruding rib 40. For waste cigarettes 7 of different specifications and diameter ranges, the cutting height of the blade 52 can be flexibly adjusted through the adjusting seat 50. It can not only adapt to the recycling needs of different types of cigarettes such as regular cigarettes and slim cigarettes, but also make precise compensation adjustments after equipment wear, ensuring that the cutting depth is always kept within a reasonable range during long-term operation, improving the versatility and service life of the equipment.

[0041] As a specific implementation method, refer to Figure 2 Located below the lower conveyor belt 3, the end of the lower conveyor belt 3 near the shallow cutting device 5 extends beyond directly below the shallow cutting device 5. A support roller 21 corresponding to the shallow cutting device 5 is also provided below the lower conveyor belt 3. The support roller 21 supports the position of the lower conveyor belt 3 corresponding to the cutting position of the shallow cutting device 5, preventing the lower conveyor belt 3 from deforming downwards under the cutting pressure of the shallow cutting device 5, ensuring the stability of the positioning groove 30, and avoiding deviation of the cigarette cutting position or abnormal cutting depth due to deformation of the lower conveyor belt 3. The extension of the lower conveyor belt 3 beyond directly below the shallow cutting device 5 ensures that the cut waste cigarettes 7 continue to be stably transported and will not stagnate below the shallow cutting device 5, ensuring continuous cutting and conveying operations.

[0042] Further reference Figure 2 Below the lower conveyor belt 3, a bracket 22 is also provided corresponding to the upper conveyor belt 4. The bracket 22 can support the upper conveyor belt 4 and prevent it from sagging or shaking under its own weight and the reaction force of the compressed cigarette. This ensures that the upper conveyor belt 4 runs smoothly and that the rib 40 and the positioning groove 30 are precisely matched. This prevents the rib 40 from failing to accurately extend into the positioning groove 30 due to the shaking of the upper conveyor belt 4, ensuring that the extrusion and cutting operations are stable and reliable and improving the operating accuracy of the equipment.

[0043] In practical applications, a transparent viewing window 20 is provided on the frame 2 directly above the shallow cutting strip device 5 to facilitate observation of the working situation.

[0044] Further, refer to Figure 2 , Figure 3 The lower conveyor belt 3 is connected to a loosening device 6 near the shallow cutting device 5. The lower conveyor belt 3 can convey materials to the loosening device 6. The loosening device 6 is used to beat and loosen the waste cigarettes 7 that have been conveyed by the lower conveyor belt 3 and cut by the blade 52, so that the tobacco shreds fall off. After the waste cigarettes 7 have been axially cut by the blade 52, their outer packaging paper has been unfolded, and the tobacco shreds have separated from the cigarette paper but still have some adhesion. Through the beating and loosening action of the loosening device 6, the tobacco shreds can be quickly and thoroughly separated from the cigarette paper, realizing the effective separation of tobacco shreds and cigarette waste, completing the key process of tobacco shred recycling, ensuring thorough tobacco shred recycling, and improving recycling efficiency.

[0045] As a specific implementation method, refer to Figure 3 The specific structure of the loosening device 6 is as follows: The loosening device 6 includes a loosening roller 61 and a loosening roller 64 arranged at intervals along the vertical direction. The loosening roller 61 is partially surrounded by a tile frame 60, and the loosening roller 64 is partially surrounded by a tile frame 63. Multiple loosening plates 62 are evenly arranged on the outer circumference of both the loosening roller 61 and the loosening roller 64. The loosening plates 62 are made of rubber plates with moderate hardness. The tile frame 60 and the tile frame 63 are connected end to end. The upper tile frame 60 is overlapped with an overlapping plate 66. The other end of the overlapping plate 66 extends to the top of the lower conveyor belt 3. Each loosening roller is provided with a loosening plate 62 on its outside. The shredded waste cigarette sticks 7 are conveyed by the lower conveyor belt 3, passing under the overlapping plate 66 and entering the loosening device 6 between two loosening rollers. The two loosening rollers rotate synchronously, and the outer loosening plate 62 continuously beats and kneads the waste cigarette sticks 7. The frame can form a barrier for the waste cigarette sticks 7, preventing tobacco and cigarette paper from splashing and scattering during the beating process. The overlapping plate 66 achieves a smooth transition between the lower conveyor belt 3 and the loosening device 6. The beating method of the double loosening rollers and the loosening plate 62 provides moderate loosening force and uniform action, achieving efficient loosening and separation without damaging the tobacco, further ensuring the quality of tobacco recycling; Reference Figure 3 Below the second transmission belt, the frame 2 is provided with a guide plate 65 spaced apart from the second tile frame 63. The guide plate 65 makes it easier for the tobacco to move downward and be collected.

[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A waste cigarette tobacco recycling device, characterized in that, include: The lower conveyor belt (3) has multiple positioning grooves (30) arranged in a ring-shaped longitudinal parallel interval on its outer surface. The upper conveyor belt (4) has a transmission length shorter than the lower conveyor belt (3) and is spaced above the lower conveyor belt (3). Its outer surface has multiple ribs (40) spaced in a longitudinal parallel ring and corresponding to the positioning grooves (30) of the lower conveyor belt (3). The shallow cutting strip device (5) is located above the lower conveyor belt (3) and at one end of the upper conveyor belt (4). The roller is parallel to the lower conveyor belt (3). The outer circumferential surface is provided with blades (52) that correspond one-to-one with the positioning grooves (30). The distance between the blades and the positioning grooves (30) can be adjusted. When the upper conveyor belt (4) rotates, the rib (40) extends into the positioning groove (30) at least once it passes the end near the shallow cutting strip device (5). In the direction perpendicular to the lower conveyor belt (3), the point where the blade (52) is closest to the bottom of the positioning groove (30) is located between the point where the rib (40) is closest to the bottom of the positioning groove (30) and the opening of the positioning groove (30). This allows the waste cigarettes (7) of different diameters driven by the lower conveyor belt (3) to be squeezed by the rib (40) of the upper conveyor belt (4) to obtain cutting surfaces of similar heights, so that the cutting depth of the blade (52) on the cutting surfaces of waste cigarettes (7) of different diameters is similar.

2. The waste cigarette and tobacco shred recycling equipment according to claim 1, characterized in that, Along the direction perpendicular to the lower conveyor belt (3), the distance between the point of the convex rib (40) and the bottom of the positioning groove (30) is L, and the minimum diameter of the waste cigarette stick (7) is D, then D≥L>0.

3. The waste cigarette and tobacco shred recycling equipment according to claim 2, characterized in that, The lower conveyor belt (3) and the upper conveyor belt (4) are arranged in parallel.

4. The waste cigarette tobacco recycling equipment according to claim 2, characterized in that, The upper conveyor belt (4) and the lower conveyor belt (3) are set at an angle, and the distance between the end of the upper conveyor belt (4) near the shallow cutting device (5) and the lower conveyor belt (3) is less than the distance between the other end of the upper conveyor belt (4) and the lower conveyor belt (3).

5. The waste cigarette tobacco recycling equipment according to claim 2, characterized in that, The positioning groove (30) has a U-shaped cross-section. The U-shaped structure includes two sides (301) and a bottom edge (302) connected to the bottom of the two sides (301). The two sides (301) are arranged at an inclined angle, and the two sides (301) are symmetrical about the perpendicular bisector of the bottom edge (302). The transition connection between the two sides (301) and the bottom edge (302) is rounded.

6. The waste cigarette tobacco recycling equipment according to claim 2, characterized in that, Both ends of the roller shaft of the shallow cutting device (5) are fitted with adjustment seats (50) that slide and adjust in a direction perpendicular to the lower conveyor belt (3).

7. The waste cigarette tobacco recycling equipment according to claim 2, characterized in that, Located below the lower conveyor belt (3), the lower conveyor belt (3) extends beyond the shallow cutting device (5) at one end near the shallow cutting device (5), and a support roller (21) corresponding to the shallow cutting device (5) is also provided below the lower conveyor belt (3).

8. The waste cigarette tobacco recycling equipment according to claim 7, characterized in that, Below the lower conveyor belt (3), there is also a bracket (22) corresponding to the upper conveyor belt (4).

9. A waste cigarette tobacco recycling device according to any one of claims 1-8, characterized in that, The lower conveyor belt (3) is connected to a loosening device (6) at one end near the shallow cutting device (5). The lower conveyor belt (3) can convey materials to the loosening device (6). The loosening device (6) is used to beat and loosen the waste cigarettes (7) that have been conveyed by the lower conveyor belt (3) and cut by the blade (52) so that the tobacco shreds fall off.

10. A waste cigarette tobacco recycling device according to claim 9, characterized in that, The loosening device (6) includes two loosening rollers spaced apart in the vertical direction, a tile frame partially surrounding the two loosening rollers on the side away from the lower conveyor belt (3) and an overlapping plate (66) overlapping with the upper tile frame, the other end of the overlapping plate (66) extending directly above the lower conveyor belt (3), and a loosening plate (62) provided on the outside of each loosening roller.

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