Tobacco shred waste recovery device

Abstract

The invention belongs to the field of tobacco box storage, and discloses a tobacco shred waste recovery device which comprises a primary screening unit, a secondary screening unit, a scrap recovery channel and a tobacco shred recovery channel. The preliminary screening unit comprises a recycling hopper, a first screening net and a first vibrator, the first screening net and the first vibrator are arranged in the recycling hopper, the first vibrator is arranged on the first screening net, and waste entering the recycling hopper falls into a discharging opening of the recycling hopper through the first screening net. The secondary screening unit comprises a secondary screening chamber communicated with the discharging port, a first material distributing port and a second material distributing port are formed in the bottom of the secondary screening unit in a spaced mode, a second screening net is arranged above the first material distributing port in a spaced mode, and the second screening net is provided with a second vibrator. The second material distributing opening is located in one side of the second screening net. And the powder recovery channel is connected to the first material distribution port. The tobacco shred recycling channel is connected to the second material distributing opening. Caked waste is scattered, continuous operation of the device is guaranteed, the waste can be screened into powder and tobacco shreds, recycling of the tobacco shreds is achieved, and waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cigarette box storage, and in particular to a tobacco waste recovery device. Background Art

[0002] In the tobacco industry, tobacco is usually stored in cigarette boxes for a certain period of time to facilitate better absorption of flavors. However, during the storage and removal process, some tobacco will inevitably break, and long-term storage will cause some tobacco to clump and adhere to the inner wall of the cigarette box or condense on the bottom of the cigarette box. When the tobacco is taken out, these tobacco and clumps will be left in the cigarette box.

[0003] Therefore, the prior art usually uses a chain conveyor to transport the cigarette box, and uses a manipulator and a brush to flip and clean the cigarette box, and a collection bucket is set under the manipulator and the brush to collect the residual materials generated by cleaning and recycle them through a pipeline. However, discrete tobacco and debris are easier to recycle, while agglomerated tobacco is larger in size and is not easy to pass through the pipeline, and may even block the feed pipeline, making it impossible to recycle waste.

[0004] Therefore, there is an urgent need for a tobacco waste recovery device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a tobacco waste recovery device to solve the technical problems in the prior art that the lumped tobacco is large in size and not easy to pass through the pipe, and even blocks the pipe, so as to achieve the technical effect of ensuring the reliability and stability of the tobacco waste recovery device.

[0006] As conceived above, the technical solution adopted by the present invention is:

[0007] The tobacco waste recycling device comprises:

[0008] A preliminary screening unit, comprising a recovery hopper, a first screening net and a first vibrator arranged in the recovery hopper, wherein the first vibrator is arranged on the first screening net, and the waste material entering the feed port of the recovery hopper falls into the discharge port of the recovery hopper through the first screening net;

[0009] A secondary screening unit, comprising a secondary screening chamber, the secondary screening chamber is connected to the discharge port, and a first material distribution port and a second material distribution port are arranged at intervals at the bottom, a second screening net is arranged above the first material distribution port, and the second screening net is provided with a second vibrator; the second material distribution port is located at one side of the second screening net;

[0010] A powder recovery channel connected to the first material distribution port;

[0011] The tobacco recovery channel is connected to the second material distribution port.

[0012] Optionally, it also includes a feed pipeline, which includes an inlet end and an outlet end, the inlet end is connected to the outlet port, and the outlet end is connected to the secondary screening chamber. The tobacco waste recovery device also includes a driving source, which is connected to the secondary screening chamber and is used to generate negative pressure in the secondary screening chamber.

[0013] Optionally, a falling channel is further provided below the discharge port of the recovery hopper, and the falling channel is provided with a mounting frame, and a monitoring unit is vertically adjustably connected to the mounting frame, and the monitoring unit is used to monitor whether tobacco waste passes through the falling channel.

[0014] Optionally, the mounting frame includes a sliding rod, a connecting block and two fixing blocks;

[0015] The two fixing blocks are arranged at intervals on the side wall of the falling channel along the vertical direction;

[0016] The two ends of the sliding rod are respectively fixedly connected to the two fixing blocks;

[0017] The connection block is sleeved on the slide bar in an adjustable manner along the vertical direction, and the monitoring unit is connected to the connection block.

[0018] Optionally, a side wall of the falling channel is provided with a visual observation window, and the monitoring unit includes a photoelectric sensor facing the visual observation window.

[0019] Optionally, the first screening net is provided with a first elastic support seat, and the first elastic support seat comprises a supporting bottom block, a first spring and a supporting rod;

[0020] The supporting bottom block is arranged in the recovery hopper;

[0021] One end of the first spring is connected to the supporting bottom block, and the other end is connected to the first screening net;

[0022] The support rod is inserted into the first spring, and the support rod includes a support rod and a sleeve slidably mounted on the support rod, one of the support rod and the sleeve is connected to the supporting bottom block, and the other is connected to the first screening net; or, the support rod is inserted into the first spring, and one end is connected to the supporting bottom block, and the other end can movably pass through the first screening net.

[0023] Optionally, the second screening net is provided with a second elastic support seat, and the second elastic support seat comprises a connecting rod and a second spring;

[0024] One end of the connecting rod is connected to the inner wall of the secondary screening chamber, and the other end is connected to a stopper. A first hole is opened on the second screening net, and the second screening net can be slidably mounted on the connecting rod through the first hole. The second spring is arranged between the second screening net and the stopper, and between the second screening net and the inner wall of the secondary screening chamber, and the second spring is mounted on the connecting rod.

[0025] Optionally, the secondary screening chamber comprises a screening chamber body and a debris collection bucket;

[0026] The bottom wall of the screening chamber body is funnel-shaped, the second material distribution port is arranged at the lowest point of the screening chamber body, and the bottom wall of the screening chamber body is provided with a screening port;

[0027] The debris collection bucket is installed at the bottom of the screening chamber body and is located below the screening port. The second screening net is arranged in the debris collection bucket. The first material distribution port is located at the lowest point of the debris collection bucket.

[0028] Optionally, the second screening net is arranged obliquely and has a first end and a second end, the second end is lower than the first end, and the second material distribution port is arranged at a distance on a side of the second end away from the first end.

[0029] Optionally, a plurality of buffer rods for blocking tobacco waste are arranged between the entrance of the secondary screening chamber and the second screening net.

[0030] Beneficial effects of the present invention:

[0031] The tobacco waste recovery device provided by the present invention is provided with a preliminary screening unit, wherein a first screening net and a first vibrator are provided in the preliminary screening unit, and the first vibrator is provided in the first screening net. The waste entering the feed port of the recovery hopper falls into the discharge port of the recovery hopper through the first screening net, thereby collecting the waste in the cigarette box and filtering the agglomerated tobacco. At the same time, the agglomerated tobacco is vibrated and broken up by the first vibrator, thereby avoiding the situation that the tobacco waste recovery device is blocked and cannot continue to work due to a large amount of agglomerated tobacco. The recovery hopper collects the tobacco and crushed powder passing through the first screening net and sends them to the secondary screening chamber in the secondary screening unit that is connected to the discharge port. The second screening net and the second vibrator in the secondary screening chamber screen the fallen tobacco again. The tobacco and crushed tobacco passing through the second screening net cannot be used anymore. After passing through the second screening net, they are guided to the crushed tobacco recovery channel by the first material distribution port. The usable tobacco left by the second screening net is sent to the tobacco recovery channel through the second material distribution port, thereby realizing the recycling of tobacco and reducing tobacco waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0033] Figure 1 is a schematic structural diagram of a tobacco waste recovery device provided by an embodiment of the present invention from a first perspective;

[0034] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0035] Figure 3 is a structural schematic diagram of a tobacco waste recovery device provided by an embodiment of the present invention from a second viewing angle;

[0036] Figure 4 is a schematic structural diagram of a first screening net provided in an embodiment of the present invention;

[0037] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0038] Figure 6 is a schematic structural diagram of a second screening net provided in an embodiment of the present invention;

[0039] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0040] Figure 8 is a front view of a secondary screening unit provided by an embodiment of the present invention;

[0041] Fig. 9 yes Figure 8 Schematic diagram of the cross section along DD.

[0042] In the figure:

[0043] 1. Preliminary screening unit; 11. Recovery hopper; 111. First screening net; 112. First vibrator; 113. First elastic support seat; 1131. Support bottom block; 1132. First spring; 1133. Support rod;

[0044] 2. Secondary screening unit; 21. Secondary screening chamber; 211. First material distribution opening; 212. Second material distribution opening; 213. Second screening net; 214. Second vibrator; 215. Second elastic support seat; 2151. Connecting rod; 21511. Stopper; 2152. Second spring; 216. Screening chamber body; 217. Crumb collecting bucket; 218. Buffer rod;

[0045] 3. Crushed powder recovery channel;

[0046] 4. Tobacco recovery channel;

[0047] 5. Material delivery pipeline; 51. Material inlet end; 52. Material outlet end;

[0048] 6. Drop channel; 61. Mounting frame; 611. Sliding rod; 612. Connecting block; 613. Fixing block; 62. Monitoring unit; 63. Visual observation window. DETAILED DESCRIPTION

[0049] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0050] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] The present invention discloses a tobacco waste recovery device, such as Figures 1 to 9As shown, the tobacco waste recovery device comprises a primary screening unit 1, a secondary screening unit 2, a shred recovery channel 3 and a tobacco recovery channel 4. The primary screening unit 1 comprises a recovery hopper 11 and a first screening net 111 and a first vibrator 112 arranged in the recovery hopper 11. The first vibrator 112 is arranged on the first screening net 111. The waste entering the feed port of the recovery hopper 11 falls into the discharge port of the recovery hopper 11 through the first screening net 111.

[0053] The secondary screening unit 2 includes a secondary screening chamber 21, which is connected to the discharge port of the recovery hopper 11, and is provided with a first material distribution port 211 and a second material distribution port 212 at intervals at the bottom, and a second screening net 213 is provided above the first material distribution port 211, and the second screening net 213 is provided with a second vibrator 214. The second material distribution port 212 is located on one side of the second screening net 213. The shredded tobacco recovery channel 3 is connected to the first material distribution port 211. The shredded tobacco recovery channel 4 is connected to the second material distribution port 212.

[0054] The tobacco waste recycling device provided by the present invention is provided with a first screening net 111 connected to a first vibrator 112 in the recycling hopper 11. When the first vibrator 112 is started, the entire first screening net 111 can be vibrated, and the waste in the cigarette box enters from the feed port of the recycling hopper 11. After that, the waste can fall into the discharge port of the recycling hopper 11 through the vibrating first screening net 111, and the agglomerated tobacco in the waste is vibrated and broken up, so as to avoid the tobacco waste recycling device being blocked and unable to continue working due to a large amount of agglomerated tobacco. The recycling hopper 11 collects the tobacco and crushed powder passing through the first screening net 111, and the tobacco and crushed powder can be transported to the secondary screening chamber 21. The second screening net 213 and the second vibrator 214 in the secondary screening chamber 21 screen the falling tobacco again. The tobacco and crushed tobacco passing through the second screening net 213 cannot be used anymore. After passing through the second screening net 213, they are guided to the crushed tobacco recovery channel 3 by the first dividing port 211. The usable tobacco remaining above the second screening net 213 is sent to the tobacco recovery channel 4 through the second dividing port 212, thereby realizing the recycling of tobacco waste and reducing tobacco waste.

[0055] It is understandable that the tobacco waste recycling device provided by the present invention can adapt to different cigarette box cleaning methods. The number of recycling hoppers 11 in the primary screening unit 1 can be set to multiple according to needs, and the primary screening unit 1 and the secondary screening unit 2 are not set one to one. For example, the discharge ports of two or more recycling hoppers 11 are connected to the secondary screening chamber 21 of the secondary screening unit 2.

[0056] In some embodiments, Figure 1 and Figure 3As shown, when the scraper is adapted to clean the cigarette box, two recovery hoppers 11 are provided, each recovery hopper 11 is provided with a first screening net 111 and a first vibrator 112 , and the discharge ports of the two recovery hoppers 11 are connected to the same secondary screening chamber 21 .

[0057] In some other embodiments, when the cigarette box is cleaned with an adapter brush, only one recovery hopper 11 and two secondary screening chambers 21 may be provided.

[0058] In some embodiments, the first vibrator 112 and the second vibrator 214 are both pneumatic vibrators, which can ensure that no pollution is caused to the tobacco. The first vibrator 112 is set at the mass center of the frame of the first screening net 111, and the second vibrator 214 is set at the mass center of the frame of the second screening net 213, which reduces the vibration inertia of the first screening net 111 and the second screening net 213, reduces unnecessary vibration interference, and ensures the screening effect.

[0059] Further, see Figure 3 The tobacco waste recovery device also includes a feed pipe 5, which includes an inlet end 51 and an outlet end 52. The inlet end 51 is connected to the outlet port, and the outlet end 52 is connected to the secondary screening chamber 21. The tobacco waste recovery device also includes a driving source, which is connected to the secondary screening chamber 21 and is used to generate negative pressure in the secondary screening chamber 21.

[0060] In some embodiments, the driving source is a vacuum generator, which can ensure that the tobacco is not contaminated. When the tobacco waste recovery device is working, the vacuum generator generates negative pressure in the secondary screening chamber 21, so that the waste passing through the discharge port of the recovery hopper 11 can move from the feed end 51 of the feed pipe 5 to the discharge end 52, and then enter the secondary screening chamber 21.

[0061] Further, see Figure 1 and Figure 2 A drop channel 6 is also provided below the discharge port of the recovery hopper 11. The drop channel 6 is provided with a mounting frame 61. A monitoring unit 62 is adjustably connected to the mounting frame 61 in the vertical direction. The monitoring unit 62 is used to monitor whether there is tobacco waste passing through the drop channel 6. It can be understood that by providing the drop channel 6 and the monitoring unit 62, it is possible to timely discover the situation where the agglomerated tobacco blocks the first screening net 111 and causes no discrete tobacco to pass through the drop channel 6. At this time, the vibration frequency of the first vibrator 112 can be increased to speed up the speed of breaking up the agglomerated tobacco and increase the breaking force, so that the tobacco waste can pass through the first screening net 111 after breaking up, thereby ensuring that the tobacco waste recovery device can work stably.

[0062] In some embodiments, the mounting frame 61 includes a slide bar 611, a connection block 612, and two fixing blocks 613. The two fixing blocks 613 are arranged at intervals along the vertical direction on the side wall of the falling channel 6. Both ends of the slide bar 611 are fixedly connected to the two fixing blocks 613. The connection block 612 is arranged on the slide bar 611 in an adjustable position along the vertical direction, and the monitoring unit 62 is connected to the connection block 612.

[0063] In some embodiments, a fixing hole is provided on the connection block 612, and a fastening screw is screwed into the fixing hole. When the fastening screw is screwed out, the connection block 612 can move on the slide bar 611. When the connection block 612 moves to a suitable position on the slide bar 611, the fastening screw is screwed so that the fastening screw is pressed against the slide bar 611, and the position of the connection block 612 relative to the slide bar 611 is fixed. By adjusting the position of the connection block 612 relative to the slide bar 611, the position of the monitoring unit 62 in the vertical direction can be adjusted, and the sensitivity of the monitoring unit 62 to material blockage can be adjusted. The closer the monitoring unit 62 is to the first screening net 111 above, the higher the sensitivity to material blockage.

[0064] More specifically, the mounting bracket 61 is disposed on the outer side wall of the falling channel 6 , which can not only avoid interference with the falling of the waste materials, but also facilitate adjustment of the position of the monitoring unit 62 .

[0065] Further, see Figure 2 In some embodiments, a visual observation window 63 is provided on the side wall of the drop channel 6, and the monitoring unit 62 includes a photoelectric sensor facing the visual observation window 63, and the photoelectric signal emitted by the photoelectric sensor can pass through the visual observation window 63. It can be understood that by providing the visual observation window 63, it is convenient for the staff to further check whether there is tobacco waste passing through the drop channel 6, and it lays a foundation for setting a safe and stable photoelectric sensor.

[0066] In some embodiments, the photoelectric sensor is a beam photoelectric sensor, which is arranged in pairs, one of which is a transmitter and the other is a receiver. When tobacco waste falls in the falling channel 6, the tobacco can block the light signal emitted by the transmitter, so that the receiver cannot receive the light signal or cannot receive a continuous light signal, which proves that tobacco waste has fallen. If the receiver can always receive the light signal emitted by the transmitter, it proves that the first screening net 111 is blocked.

[0067] Further, see Figures 3 to 5 The first screening net 111 is provided with a first elastic support seat 113, and the first elastic support seat 113 includes a support bottom block 1131, a first spring 1132 and a support rod 1133. The support bottom block 1131 is provided in the recovery hopper 11.

[0068] In some embodiments, one end of the first spring 1132 is connected to the support bottom block 1131, and the other end is connected to the frame of the first screening net 111. The support rod 1133 is inserted into the first spring 1132, and the support rod 1133 includes a support rod and a sleeve slidably mounted on the support rod, one of the support rod and the sleeve is connected to the support bottom block 1131, and the other is connected to the frame of the first screening net 111.

[0069] In some other embodiments, the support rod 1133 is inserted into the first spring 1132 , and one end of the support rod 1133 is connected to the support bottom block 1131 , and the other end of the support rod 1133 can movably pass through the frame of the first screening net 111 .

[0070] It is understandable that by arranging the first elastic support seat 113 on the frame of the first screening net 111, the vibration generated by the first vibrator 112 can be absorbed, thereby preventing the vibration from being transmitted to the recovery hopper 11 when the agglomerated tobacco waste is broken up into a discrete state by the first vibrator 112.

[0071] Further, see Figure 6 and Figure 7 The second screening net 213 is provided with a second elastic support seat 215, and the second elastic support seat 215 includes a connecting rod 2151 and a second spring 2152. One end of the connecting rod 2151 is connected to the inner wall of the secondary screening chamber, and the other end is connected to a stopper 21511. A first hole is provided on the second screening net 213, and the second screening net 213 is slidably sleeved on the connecting rod 2151 through the first hole. A second spring 2152 is provided between the second screening net 213 and the stopper 21511, and between the second screening net 213 and the inner wall of the secondary screening chamber, and the second spring 2152 is sleeved on the connecting rod 2151. It is understandable that the second spring 2152 disposed between the second screening net 213 and the stopper 21511 and between the second screening net 213 and the inner wall of the secondary screening chamber enables the second screening net 213 to slide along the connecting rod 2151, and the second spring 2152 disposed on the upper and lower sides of the second screening net 213 absorbs the vibration generated by the second vibrator 214, thereby preventing the vibration generated by the second vibrator 214 from being transmitted to the secondary screening chamber when the tobacco shreds and the shreds are screened by the second vibrator 214 and the second screening net 213. The second spring 2152 is sleeved on the connecting rod 2151, so that the connecting rod 2151 can guide the second spring 2152.

[0072] In some specific embodiments, the connecting rod 2151 is a bolt, the head of the bolt serves as a stopper 21511, and only one end of the bolt away from the head is provided with a partial thread, and the other part is a threadless rod. A threaded hole is provided on the inner wall of the secondary screening chamber 21, and the bolt is threadedly connected to the threaded hole. A second spring 2152 is provided between the frame of the second screening net 213 and the head of the bolt, and between the frame of the second screening net 213 and the inner wall of the secondary screening chamber 21, so as to realize the elastic connection between the second screening net 213 and the inner wall of the secondary screening chamber 21.

[0073] Further, see Fig. 9 The secondary screening chamber 21 includes a screening chamber body 216 and a crushed powder collecting hopper 217. The bottom wall of the screening chamber body 216 is funnel-shaped, the second material distribution port 212 is arranged at the lowest point of the screening chamber body 216, and the bottom wall of the screening chamber body 216 is provided with a screening port. The crushed powder collecting hopper 217 is installed at the bottom of the screening chamber body 216 and is located below the screening port. The second screening net 213 is arranged in the crushed powder collecting hopper 217, and the first material distribution port 211 is located at the lowest point of the crushed powder collecting hopper 217. In this arrangement, the second screening net 213 is spaced below the screening opening, so that a screening slot area is formed between the second screening net 213 and the screening opening, and the tobacco entering the secondary screening chamber 21 will fall into the screening slot area and be screened by the vibration of the second screening net 213, that is, the screening slot area can accommodate a portion of tobacco waste, and prevent the tobacco waste from being directly drawn into the second distribution opening 212 after entering the secondary screening chamber 21 due to the funnel-shaped structure of the bottom wall of the screening chamber body 216, so that the screening of broken and usable tobacco is more reliable. Moreover, the second distribution opening 212 is located at the lowest point of the screening chamber body 216, and the first distribution opening 211 is located at the lowest point of the broken collection bucket 217, so that the tobacco can move smoothly to the first distribution opening 211 and the second distribution opening 212 under the action of gravity, and avoid the residue of usable tobacco and broken.

[0074] Furthermore, the second screening net 213 is tilted and has a first end and a second end, the second end is lower than the first end, and the second material distribution opening 212 is spaced apart and arranged on a side of the second end away from the first end. In this way, the usable shredded tobacco remaining on the second screening net 213 after vibration screening can move toward the second material distribution opening 212 by itself under the action of its own gravity, and thus smoothly pass through the second material distribution opening 212 and enter the shredded tobacco recovery channel 4.

[0075] It is understandable that the waste material transported by the feeding pipe 5 enters the secondary screening chamber 21 and falls to the screening port, where the crushed and shredded tobacco are screened by the second screening net 213 and the second vibrator 214, and will not move directly to the second material distribution port 212, so as to ensure that the crushed and shredded tobacco can be completely separated. The crushed powder passes through the second screening net 213 and is collected by the crushed powder collecting bucket 217 to the first material distribution port 211, and then transported to the crushed powder recovery channel 3, while the shredded tobacco remains above the second screening net 213 and is collected by the second material distribution port 212 and then transported to the shredded tobacco recovery channel 4.

[0076] Furthermore, in order to prevent the second vibrator 214 from hindering the movement of the tobacco shreds, the second vibrator 214 is disposed below the second screening net 213 .

[0077] Further, see Fig. 9 A plurality of buffer rods 218 for blocking tobacco waste are provided between the entrance of the secondary screening chamber 21 and the second screening net 213. It can be understood that by providing the buffer rods 218, the tobacco waste entering the secondary screening chamber 21 is decelerated to ensure that the tobacco waste does not directly slide through the screening opening into the second material distribution opening 212 due to inertia.

[0078] In some embodiments, a plurality of buffer rods 218 for blocking tobacco waste are arranged in an array.

[0079] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tobacco waste recovery device, characterized in that: include: A preliminary screening unit (1) comprises a recovery hopper (11), and a first screening net (111) and a first vibrator (112) arranged in the recovery hopper (11), wherein the first vibrator (112) is arranged on the first screening net (111), and waste material entering the feed inlet of the recovery hopper (11) falls into the discharge outlet of the recovery hopper (11) via the first screening net (111); A secondary screening unit (2), comprising a secondary screening chamber (21), the secondary screening chamber (21) being in communication with the discharge port, and having a first material distribution port (211) and a second material distribution port (212) arranged at intervals at the bottom, a second screening net (213) being arranged at intervals above the first material distribution port (211), and the second screening net (213) being provided with a second vibrator (214); the second material distribution port (212) being located at one side of the second screening net (213); A powder recovery channel (3) connected to the first material distribution port (211); The tobacco shred recovery channel (4) is connected to the second distribution port (212).

2. The tobacco waste recovery device according to claim 1, characterized in that: The device further comprises a feed pipe (5), wherein the feed pipe (5) comprises an inlet end (51) and an outlet end (52), wherein the inlet end (51) is connected to the outlet port, and the outlet end (52) is connected to the secondary screening chamber (21). The device further comprises a driving source, wherein the driving source is connected to the secondary screening chamber (21) and is used to generate a negative pressure in the secondary screening chamber (21).

3. The tobacco waste recovery device according to claim 1, characterized in that: A falling channel (6) is also provided below the discharge port of the recovery hopper (11), and the falling channel (6) is provided with a mounting frame (61). A monitoring unit (62) is connected to the mounting frame (61) in an adjustable manner in the vertical direction, and the monitoring unit (62) is used to monitor whether tobacco waste passes through the falling channel (6).

4. The tobacco waste recovery device according to claim 3, characterized in that: The mounting frame (61) comprises a sliding rod (611), a connecting block (612) and two fixing blocks (613); The two fixing blocks (613) are arranged at intervals on the side wall of the falling channel (6) along the vertical direction; The two ends of the sliding rod (611) are respectively fixedly connected to the two fixing blocks (613); The connection block (612) is sleeved on the sliding rod (611) in an adjustable manner in the vertical direction, and the monitoring unit (62) is connected to the connection block (612).

5. The tobacco waste recovery device according to claim 3, characterized in that: A visual observation window (63) is provided on the side wall of the falling channel (6), and the monitoring unit (62) comprises a photoelectric sensor facing the visual observation window (63).

6. The tobacco waste recovery device according to claim 1, characterized in that: The first screening net (111) is provided with a first elastic support seat (113), and the first elastic support seat (113) comprises a supporting bottom block (1131), a first spring (1132) and a supporting rod (1133); The supporting bottom block (1131) is arranged in the recovery hopper (11); One end of the first spring (1132) is connected to the supporting bottom block (1131), and the other end is connected to the first screening net (111); The support rod (1133) is inserted into the first spring (1132), and the support rod (1133) includes a support rod and a sleeve slidably mounted on the support rod, one of the support rod and the sleeve is connected to the supporting bottom block (1131), and the other is connected to the first screening net (111); or, the support rod (1133) is inserted into the first spring (1132), and one end is connected to the supporting bottom block (1131), and the other end can movably pass through the first screening net (111).

7. The tobacco waste recovery device according to claim 1, characterized in that: The second screening net (213) is provided with a second elastic support seat (215), and the second elastic support seat (215) comprises a connecting rod (2151) and a second spring (2152); One end of the connecting rod (2151) is connected to the inner wall of the secondary screening chamber, and the other end is connected to a stopper (21511). A first hole is provided on the second screening net (213), and the second screening net (213) is slidably mounted on the connecting rod (2151) through the first hole. The second spring (2152) is arranged between the second screening net (213) and the stopper (21511), and between the second screening net (213) and the inner wall of the secondary screening chamber, and the second spring (2152) is mounted on the connecting rod (2151).

8. The tobacco waste recovery device according to claim 1, characterized in that: The secondary screening chamber (21) comprises a screening chamber body (216) and a debris collection bucket (217); The bottom wall of the screening chamber body (216) is funnel-shaped, the second material distribution port (212) is arranged at the lowest point of the screening chamber body (216), and the bottom wall of the screening chamber body (216) is provided with a screening port; The debris collection bucket (217) is installed at the bottom of the screening chamber body (216) and is located below the screening port. The second screening net (213) is arranged in the debris collection bucket (217). The first material distribution port (211) is located at the lowest point of the debris collection bucket (217).

9. The tobacco waste recovery device according to claim 8, characterized in that: The second screening net (213) is arranged obliquely and has a first end and a second end, the second end is lower than the first end, and the second material distribution opening (212) is arranged at a distance on a side of the second end away from the first end.

10. The tobacco waste recovery device according to any one of claims 1 to 9, characterized in that: A plurality of buffer rods (218) for blocking tobacco waste are arranged between the entrance of the secondary screening chamber (21) and the second screening net (213).

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