Automatic stem shred separation and recovery device

Abstract

The present invention discloses a stem separation and automatic recycling device, which includes components such as a lifting and feeding device, a first-stage vibrating upward sieve connected to the upper end of the lifting and feeding device, a two-stage air separation mechanism connected to the first-stage vibrating upward sieve and vertically arranged, a speed regulating channel located above the two-stage air separation mechanism and with its lower end connected to the upper end of the two-stage air separation mechanism, a collection channel located below the two-stage air separation mechanism and connected to the lower end of the two-stage air separation mechanism, and a sedimentation chamber connected to the upper end of the speed regulating channel. The lifting and feeding device can convey raw materials to the first-stage vibrating upward sieve, and after vibration classification, the raw materials are conveyed to the two-stage air separation mechanism. Due to the action of the fan, the wind generated by the fan enables the raw materials to complete two-stage separation on the two-stage air separation mechanism. Those that are too large in volume or weight and do not meet the requirements are recycled through the collection channel, and those that meet the requirements reach the sedimentation chamber through the speed regulating air duct.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco stem and tobacco leaf separation, and more specifically, to an automatic recovery device for separating tobacco stems. Background Art

[0002] During the cigarette production process in a cigarette factory, it is necessary to separate and recover the tobacco stems mixed in the tobacco leaves. The existing separation and recovery devices only separate and recover through the first-stage air separation of the mixture, and cannot classify and separate according to the volume size, nor perform the second-stage air separation, resulting in unsatisfactory separation effects.

[0003] Therefore, how to provide an automatic recovery device for separating tobacco stems that can classify and separate according to the volume size and perform the second-stage air separation has become a technical problem urgently to be solved in this field. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic recovery device for separating tobacco stems, which can classify and separate according to the volume size of the tobacco leaves and perform the second-stage air separation to improve the purity of the tobacco leaves and the quality of the subsequent finished cigarettes.

[0005] According to one aspect of the present invention, an automatic recovery device for separating tobacco stems is provided, including a platform, an electric control cabinet, a lifting and feeding device, a first-stage vibrating inclined screen, a two-stage air separation mechanism, a speed regulation channel, and a settling chamber;

[0006] A support frame for support is provided below the platform, and the lifting and feeding device is arranged on one side of the platform for lifting and conveying the mixed materials; the first-stage vibrating inclined screen is connected to the material outlet of the lifting and feeding device for preliminarily vibrating and screening the tobacco stems in the mixed materials;

[0007] The two-stage air separation mechanism is connected to the material outlet of the first-stage vibrating inclined screen for second-stage air separation of the preliminarily screened tobacco stems to screen the tobacco stalks and tobacco leaves again; the speed regulation channel connects the settling chamber and the two-stage air separation mechanism, and a blower is provided on one side of the settling chamber. An air inlet matching with the blower is provided at the bottom of the two-stage air separation mechanism, and the air inlet is also used for discharging the tobacco stalks. The speed regulation channel is used to adjust the air volume in the two-stage air separation mechanism;

[0008] A rotary air lock is further provided at the bottom on the other side of the settling chamber for conveying the tobacco leaves settled in the settling chamber out; the electric control cabinet is used to control the start and stop of the lifting and feeding device, the first-stage vibrating inclined screen, the speed regulation channel, and the blower.

[0009] Optionally, for the cut stem separation and automatic recovery device according to the present invention, the first-stage vibrating inclined screen is a three-layer vibrating screen. The first-stage vibrating inclined screen is provided with a vibrating screen outlet A, a vibrating screen outlet B, and a vibrating screen outlet C, which are respectively connected to the low, middle, and high layers of the first-stage vibrating inclined screen. The vibrating screen outlet A, the vibrating screen outlet B, and the vibrating screen outlet C are respectively connected to the two-stage air separation mechanism.

[0010] Optionally, for the cut stem separation and automatic recovery device according to the present invention, the two-stage air separation mechanism includes a first-stage air separation channel A, a second-stage air separation channel A, a first-stage air separation channel B, a second-stage air separation channel B, a first-stage air separation channel C, and a second-stage air separation channel C that are arranged in a 2*3 array and are closely distributed. The first-stage air separation channel A, the first-stage air separation channel B, and the first-stage air separation channel C are located on the side facing the first-stage vibrating inclined screen;

[0011] The first-stage air separation channel A is provided with a feed inlet A connected to the vibrating screen outlet A. The first-stage air separation channel B is provided with a feed inlet B connected to the vibrating screen outlet B. The first-stage air separation channel C is provided with a feed inlet C connected to the vibrating screen outlet C;

[0012] The first-stage air separation channel A, the first-stage air separation channel B, and the first-stage air separation channel C are used for air separating the cut stems at the three outlets of the first-stage vibrating inclined screen; the second-stage air separation channel A, the second-stage air separation channel B, and the second-stage air separation channel C are used for air separating the cut stems that fall to the air inlet.

[0013] Optionally, for the cut stem separation and automatic recovery device according to the present invention, the air inlet includes a first-stage air inlet A, a first-stage air inlet B, a first-stage air inlet C, and a second-stage air inlet. The first-stage air inlet A is arranged below the feed inlet A, and its interior is connected to the first-stage air separation channel A and the second-stage air separation channel A;

[0014] The first-stage air inlet B is arranged below the feed inlet B, and its interior is connected to the first-stage air separation channel B and the second-stage air separation channel B;

[0015] The first-stage air inlet C is arranged below the feed inlet C, and its interior is connected to the first-stage air separation channel C and the second-stage air separation channel C;

[0016] The second-stage air inlet is arranged below the second-stage air separation channel A, the second-stage air separation channel B, and the second-stage air separation channel C, and it is also connected to a collection channel. The collection channel is used for discharging tobacco stems.

[0017] Optionally, for the cut stem separation and automatic recovery device according to the present invention, the speed regulation channels include a first-stage speed regulation channel A, a second-stage speed regulation channel A, a first-stage speed regulation channel B, a second-stage speed regulation channel B, a first-stage speed regulation channel C, and a second-stage speed regulation channel C that are arranged in a 2*3 fitting distribution, and are used to respectively adjust the air volume of different air separation channels in the two-stage air separation mechanism;

[0018] The first-stage speed regulation channel A is connected to the upper end of the first-stage air separation channel A, and a first-stage speed regulation motor A is provided on its outer side wall. The first-stage transmission shaft A of the first-stage speed regulation motor A extends into the first-stage speed regulation channel A, and a first-stage speed regulation blade A is provided on the first-stage transmission shaft A;

[0019] The first-stage speed regulation channel B is connected to the upper end of the first-stage air separation channel B. A first-stage speed regulation motor B is further provided on the outer side wall of the first-stage speed regulation channel A or the first-stage speed regulation channel C. The first-stage transmission shaft B of the first-stage speed regulation motor B extends into the first-stage speed regulation channel B, and a first-stage speed regulation blade B is provided on the first-stage transmission shaft B;

[0020] The first-stage speed regulation channel C is connected to the upper end of the first-stage air separation channel C, and a first-stage speed regulation motor C is provided on its outer side wall. The first-stage transmission shaft C of the first-stage speed regulation motor C extends into the first-stage speed regulation channel C, and a first-stage speed regulation blade C is provided on the first-stage transmission shaft C;

[0021] The second-stage speed regulation channel A is connected to the upper end of the second-stage air separation channel A, and a second-stage speed regulation motor A is provided on its outer side wall. The second-stage transmission shaft A of the second-stage speed regulation motor A extends into the second-stage speed regulation channel A, and a second-stage speed regulation blade A is provided on the second-stage transmission shaft A;

[0022] The second-stage speed regulation channel B is connected to the upper end of the second-stage air separation channel B. A second-stage speed regulation motor B is further provided on the outer side wall of the second-stage speed regulation channel A or the second-stage speed regulation channel C. The second-stage transmission shaft B of the second-stage speed regulation motor B extends into the second-stage speed regulation channel B, and a second-stage speed regulation blade B is provided on the second-stage transmission shaft B;

[0023] The second-stage speed regulation channel C is connected to the upper end of the second-stage air separation channel C, and a second-stage speed regulation motor C is provided on its outer side wall. The second-stage transmission shaft C of the second-stage speed regulation motor C extends into the second-stage speed regulation channel C, and a second-stage speed regulation blade C is provided on the second-stage transmission shaft C.

[0024] Optionally, for the cut stem separation and automatic recovery device according to the present invention, transparent glass observation windows are provided on the side walls of the first-stage speed regulation channels A, B, and C, the second-stage speed regulation channels A and B, and the first-stage speed regulation channel C respectively and independently, so as to view the air separation situation in the speed regulation channels in real time.

[0025] Optionally, for the cut stem separation and automatic recovery device according to the present invention, the sedimentation chamber includes sedimentation channels A, B, and C, which are used for separating and sedimenting cut tobacco of different volumes;

[0026] The sedimentation channel A communicates with the upper ends of the first-stage speed regulation channel A and the second-stage speed regulation channel A, the sedimentation channel B communicates with the upper ends of the first-stage speed regulation channel B and the second-stage speed regulation channel B, and the sedimentation channel C communicates with the upper ends of the first-stage speed regulation channel C and the second-stage speed regulation channel C.

[0027] Optionally, for the cut stem separation and automatic recovery device according to the present invention, there is a collection bin at the bottom of the other side of the sedimentation chamber away from the speed regulation channel, the air lock is arranged at the bottom of the collection bin, and the collection bin includes collection bins A, B, and C;

[0028] The outlet of the sedimentation channel A and the collection bin A form an arc-shaped swirling area, and a blower bin A communicating with the collection bin A is also provided above the collection bin A;

[0029] The outlet of the sedimentation channel B and the collection bin B form an arc-shaped swirling area, and a blower bin B communicating with the collection bin A is also provided above the collection bin B;

[0030] The outlet of the sedimentation channel C and the collection bin C form an arc-shaped swirling area, and a blower bin C communicating with the collection bin A is also provided above the collection bin C; the blower bin A, the blower bin B, and the blower bin C are all connected to the blower, so that the blower is communicated with the air inlet.

[0031] Optionally, for the cut stem separation and automatic recovery device according to the present invention, a secondary vibrating upward sieve is further provided at the output port of the air lock to perform final screening on the cut tobacco that has been screened again by the two-stage air separation mechanism;

[0032] A conveying channel is provided at the cut tobacco outlet of the secondary vibrating upward sieve, a conveyor is provided below the conveying channel, the conveyor is located on one side of the platform, and it is used to convey the screened cut tobacco to the next process. The secondary vibrating upward sieve and the conveyor are both electrically connected to the electric control cabinet.

[0033] Optionally, for the cut stem separation and automatic recovery device according to the present invention, a ladder is further provided on one side of the platform, and the ladder is used for the staff to climb onto the platform and detect the operation of each mechanism.

[0034] The beneficial effects of the present invention compared with the prior art are as follows:

[0035] 1. The ladder and the platform facilitate the operation and observation of the staff. The frame plays a fixing role. The feeding device can convey the raw materials to the first-stage vibrating upward sieve. After vibration classification, the raw materials are conveyed to the two-stage air separation mechanism. Due to the action of the fan, the wind generated by the fan enables the raw materials to complete two-stage separation on the two-stage air separation mechanism. Those that are too large in volume or weight do not meet the requirements, and this part is recycled through the collection channel. Those that meet the requirements reach the sedimentation chamber through the speed regulation channel and then settle into the rotary air lock. The second-stage vibrating upward sieve vibrates the raw materials for the second stage. After being screened by the second-stage vibration, the raw materials reach the conveyor through the conveying channel.

[0036] 2. The first-stage vibrating upward sieve is a three-layer vibrating sieve, which can classify and screen the raw materials according to their volume size. Then, the parts that do not meet the requirements are removed through the subsequent two-stage air separation. Among them, the raw materials coming out of the outlet A of the vibrating sieve have the smallest volume, those coming out of the outlet B are the second, and the raw materials coming out of the outlet C of the vibrating sieve have the largest volume.

[0037] 3. The first-stage air inlet A and the second-stage air inlet of the first-stage air separation channel A play a role in ventilation, and can cooperate with the fan to generate an upward flowing wind for air separation of the raw materials. The raw materials coming out of the outlet A of the vibrating sieve enter the first-stage air separation channel through the feed inlet A. Those with a smaller volume or weight directly enter the speed regulation channel through the first-stage air separation channel A. The remaining raw materials enter the second-stage air separation channel A through the first-stage air separation channel A and then undergo secondary air separation. The remaining ones that are too large in volume or weight are recycled through the collection channel. The working principles of the first-stage air separation channel B, the second-stage air separation channel B, the first-stage air separation channel C, and the second-stage air separation channel C are the same as above.

[0038] 4. By controlling the rotation of the first-stage speed regulation motor A in the first-stage speed regulation channel A and the second-stage speed regulation motor A in the second-stage speed regulation channel A through the electric control cabinet, and then making the first-stage speed regulation blades A and the second-stage speed regulation motor A rotate, the wind speeds in the first-stage speed regulation channel A and the second-stage speed regulation channel A are adjusted, thereby adjusting the wind speeds and wind forces in the first-stage air separation channel A and the second-stage air separation channel A. In this way, the size of the tobacco leaves to be selected can be controlled. If the wind speed and wind force are large, the selected tobacco leaves are larger; if the wind speed and wind force are small, the selected tobacco leaves are smaller. The working principles of the first-stage speed regulation channel B, the second-stage speed regulation channel B, the first-stage speed regulation channel C, and the second-stage speed regulation channel C are the same as above.

[0039] 5. The tobacco leaves from the primary speed regulation channel A and the secondary speed regulation channel A reach the swirling area at the top of the collection bin A through the sedimentation channel A, and then fall into the air lock through the collection bin. The size of the connection between the fan bin A and the collection bin A is smaller than that of the fan bin A. The narrower connection can prevent the tobacco leaves from entering the fan bin A. The fan bin A, in cooperation with the primary air inlet A and the secondary air inlet, can ensure the wind speed and wind force of the entire channel. The working principles of the sedimentation channel B, the fan bin B, the collection bin B, the sedimentation channel C, the fan bin C, and the collection bin C are the same as above.

[0040] Other features and advantages of the present invention will become apparent from the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings incorporated in and forming a part of this specification illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0042] Figure 1 is a schematic diagram of the first structure of the present invention;

[0043] Figure 2 is a schematic diagram of the second structure of the present invention;

[0044] Figure 3 is a schematic diagram of the structure of the primary vibrating upward sieve of the present invention;

[0045] Figure 4 is a schematic diagram of the relative positions of the two-stage air separation mechanism, the speed regulation channel, and the sedimentation chamber of the present invention;

[0046] Figure 5 is a schematic diagram of the first structure of the speed regulation channel of the present invention;

[0047] Figure 6 is a schematic diagram of the second structure of the speed regulation channel of the present invention;

[0048] Figure 7 is a schematic diagram of the relative positions of the primary air separation channel A and the secondary air separation channel A of the present invention;

[0049] Figure 8 is a schematic diagram of the relative positions of the primary air separation channel B and the secondary air separation channel B of the present invention;

[0050] Figure 9 is a schematic diagram of the relative positions of the primary air separation channel C and the secondary air separation channel C of the present invention;

[0051] Figure 10 is a schematic diagram of the position of the primary speed regulation blade B of the present invention;

[0052] Figure 11 is a schematic diagram of the position of the secondary speed regulation blade B of the present invention;

[0053] Figure 12 This is a schematic diagram of the position of the secondary air inlet of the present invention.

[0054] Description of reference numerals: 1, frame; 2, platform; 3, escalator; 4, lifting and feeding equipment; 5, primary vibrating inclined screen; 6, two-stage air separation mechanism; 7, speed regulation channel; 8, collection channel; 9, sedimentation chamber; 10, fan; 11, air lock; 12, secondary vibrating inclined screen; 13, conveying channel; 14, conveyor; 15, electric control cabinet;

[0055] 16, vibrating screen outlet A; 17, vibrating screen outlet B; 18, vibrating screen outlet C; 19, primary air separation channel A; 20, feed inlet A; 21, secondary air separation channel A; 22, primary air inlet A; 23, primary air separation channel B; 24, feed inlet B; 25, secondary air separation channel B; 26, primary air inlet B; 27, primary air separation channel C; 28, feed inlet C; 29, secondary air separation channel C; 30, primary air inlet C; 31, secondary air inlet;

[0056] 34, primary speed regulation channel A; 35, primary speed regulation motor A; 36, primary transmission shaft A; 37, primary speed regulation vane A; 38, secondary speed regulation channel A; 39, secondary speed regulation motor A; 40, secondary transmission shaft A; 41, secondary speed regulation vane A; 42, primary speed regulation channel B; 43, primary speed regulation motor B; 44, primary transmission shaft B; 45, primary speed regulation vane B; 46, secondary speed regulation channel B; 47, secondary speed regulation motor B; 48, secondary transmission shaft B; 49, secondary speed regulation vane B; 50, primary speed regulation channel C; 51, primary speed regulation motor C; 52, primary transmission shaft C; 53, primary speed regulation vane C; 54, secondary speed regulation channel C; 55, secondary speed regulation motor C; 56, secondary transmission shaft C; 57, secondary speed regulation vane C; 58, glass observation window;

[0057] 59, sedimentation channel A; 60, collection bin A; 61, fan bin A; 62, sedimentation channel B; 63, collection bin B; 64, fan bin B; 65, sedimentation channel C; 66, collection bin C; 67, fan bin C. Detailed implementation manners

[0058] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps set forth in these embodiments, numerical expressions and values do not limit the scope of the present invention.

[0059] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as a limitation to the present invention and its application or use.

[0060] Known technologies, methods, and devices to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.

[0061] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0062] It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof in subsequent figures is not necessary.

[0063] According to Figures 1 to 12 As shown, the present invention provides a cut stem separation and automatic recovery device, including a platform 2, an electric control cabinet 15, a lifting and feeding device 4, a primary vibrating inclined screen 5, a two-stage air separation mechanism 6, a speed regulation channel 7, and a sedimentation chamber 9.

[0064] A frame 1 for support is provided below the platform 2, and the lifting and feeding device 4 is arranged on one side of the platform 2 and is used for lifting and conveying the mixed materials; the primary vibrating inclined screen 5 is connected to the material outlet of the lifting and feeding device 4 and is used for preliminarily vibrating and screening the cut stems in the mixed materials.

[0065] The two-stage air separation mechanism 6 is connected to the material outlet of the primary vibrating inclined screen 5 and is used for secondarily air separating the preliminarily screened cut stems to further screen the tobacco stems and tobacco leaves; the speed regulation channel 7 connects the sedimentation chamber 9 with the two-stage air separation mechanism 6, and a fan 10 is provided on one side of the sedimentation chamber 9. An air inlet cooperating with the fan 10 is provided at the bottom of the two-stage air separation mechanism 6, and the air inlet is also used for discharging the tobacco stems. The speed regulation channel 7 is used for adjusting the air volume in the two-stage air separation mechanism 6.

[0066] A rotary air lock 11 is further provided at the bottom on the other side of the sedimentation chamber 9, and the rotary air lock 11 is used for conveying the tobacco leaves sedimented in the sedimentation chamber 9 out; the electric control cabinet 15 is used for controlling the start and stop of the lifting and feeding device 4, the primary vibrating inclined screen 5, the speed regulation channel 7, and the fan 10.

[0067] In this embodiment, the platform 2 is used to support the overall structure of the present invention. The lifting and feeding device 4 can convey the raw materials onto the primary vibrating inclined screen 5. After vibration classification, the raw materials are then conveyed onto the two-stage air separation mechanism 6. Due to the action of the fan 10, the wind generated by the fan 10 enables the raw materials to complete two-stage separation on the two-stage air separation mechanism 6. Those that are too large in volume or weight and do not meet the requirements are discharged and recovered through the air inlet, and those that meet the requirements pass through the speed regulation channel 7 to reach the sedimentation chamber 9 and then settle into the rotary air lock 11. The rotary air lock 11 is used for conveying the tobacco leaves sedimented in the sedimentation chamber 9 out.

[0068] Further, the first-stage vibrating upward sieve 5 is a three-layer vibrating sieve. The first-stage vibrating upward sieve 5 is provided with a vibrating sieve outlet A16, a vibrating sieve outlet B17, and a vibrating sieve outlet C18, which are respectively connected to the low, middle, and high three layers of the first-stage vibrating upward sieve 5. The vibrating sieve outlet A16, the vibrating sieve outlet B17, and the vibrating sieve outlet C18 are respectively connected to the two-stage air separation mechanism 6. The first-stage vibrating upward sieve 5 being a three-layer vibrating sieve can classify and screen the raw materials according to their volume sizes, and then eliminate the unqualified parts through the subsequent two-stage air separation. Among them, the raw materials coming out of the vibrating sieve outlet A16 have the smallest volume, the raw materials coming out of the vibrating sieve outlet B17 are the second, and the raw materials coming out of the vibrating sieve outlet C18 have the largest volume.

[0069] Still further, the two-stage air separation mechanism 6 includes a first-stage air separation channel A19, a second-stage air separation channel A21, a first-stage air separation channel B23, a second-stage air separation channel B25, a first-stage air separation channel C27, and a second-stage air separation channel C29 that are arranged in a 2*3 array and are attached and distributed. The first-stage air separation channels A19, B23, and C27 are located on the side facing the first-stage vibrating upward sieve 5.

[0070] The first-stage air separation channel A19 is provided with a feed port A20 connected to the vibrating sieve outlet A16, the first-stage air separation channel B23 is provided with a feed port B24 connected to the vibrating sieve outlet B17, and the first-stage air separation channel C27 is provided with a feed port C28 connected to the vibrating sieve outlet C18.

[0071] The first-stage air separation channels A19, B23, and C27 are used to air-separate the cut tobacco from the three outlets of the first-stage vibrating upward sieve 5; the second-stage air separation channels A21, B25, and C29 are used to air-separate the cut tobacco that has fallen to the air inlet.

[0072] In this embodiment, since the first-stage vibrating upward sieve 5 has already divided the mixed cut tobacco materials into three categories according to their volume sizes, in order to avoid the materials being mixed again during air separation, the present invention opens different feed ports on the two-stage air separation mechanism 6, so that materials of different volume sizes enter different air separation channels respectively, ensuring the air separation effect of the two-stage air separation mechanism 6 on the cut tobacco. And the cut tobacco after air separation has been preliminarily screened by the first-stage vibrating upward sieve 5 in advance, which is convenient for the subsequent speed adjustment channel 7 to adjust the air volume according to the cut tobacco of different volume sizes, improving the air separation effect of the present invention.

[0073] Further, the air inlets include a primary air inlet A22, a primary air inlet B26, a primary air inlet C30, and a secondary air inlet 31. The primary air inlet A22 is disposed below the feed inlet A20, and its interior is in communication with the primary air separation channel A19 and the secondary air separation channel A21. The primary air inlet B26 is disposed below the feed inlet B24, and its interior is in communication with the primary air separation channel B23 and the secondary air separation channel B25. The primary air inlet C30 is disposed below the feed inlet C28, and its interior is in communication with the primary air separation channel C27 and the secondary air separation channel C29.

[0074] The secondary air inlet 31 is disposed below the secondary air separation channels A21, B25, and C29, and is further connected to a collection channel 8 for discharging tobacco stems.

[0075] In this embodiment, the primary air inlet A22 of the primary air separation channel A19 and the secondary air inlet 31 function to ventilate, and can cooperate with the fan 10 to generate an upward flowing wind force for air separation of the raw materials. The raw materials coming out of the vibrating screen outlet A16 enter the primary air separation channel through the feed inlet A20. The raw materials with smaller volume or weight directly enter the speed regulation channel 7 through the primary air separation channel A19. The remaining raw materials enter the secondary air separation channel A21 through the primary air separation channel A19, and then undergo secondary air separation. The remaining raw materials with too large volume or weight are recycled through the collection channel 8. The working principles of the primary air separation channels B23, secondary air separation channels B25, primary air separation channels C27, and secondary air separation channels C29 are the same as above.

[0076] Further, the speed regulation channel 7 includes a primary speed regulation channel A34, a secondary speed regulation channel A38, a primary speed regulation channel B42, a secondary speed regulation channel B46, a primary speed regulation channel C50, and a secondary speed regulation channel C54 that are arranged in a 2*3 array and are closely distributed, and are used to respectively adjust the air volume of different air separation channels in the two-stage air separation mechanism 6.

[0077] The primary speed regulation channel A34 is connected to the upper end of the primary air separation channel A19. A primary speed regulation motor A35 is provided on the outer side wall of the primary speed regulation channel A34. The primary transmission shaft A36 of the primary speed regulation motor A35 extends into the primary speed regulation channel A34, and a primary speed regulation blade A37 is provided on the primary transmission shaft A36.

[0078] The primary speed regulation channel B42 is connected to the upper end of the primary air separation channel B23. A primary speed regulation motor B43 is further provided on the outer side wall of the primary speed regulation channel A34 or the primary speed regulation channel C50. The primary transmission shaft B44 of the primary speed regulation motor B43 extends into the primary speed regulation channel B42, and a primary speed regulation blade B45 is provided on the primary transmission shaft B44.

[0079] The upper end of the first-stage speed regulation channel C50 is connected to the upper end of the first-stage air separation channel C27. A first-stage speed regulation motor C51 is provided on its outer side wall. The first-stage transmission shaft C52 of the first-stage speed regulation motor C51 extends into the first-stage speed regulation channel C50, and a first-stage speed regulation blade C53 is provided on the first-stage transmission shaft C52.

[0080] The upper end of the second-stage speed regulation channel A38 is connected to the upper end of the second-stage air separation channel A21. A second-stage speed regulation motor A39 is provided on its outer side wall. The second-stage transmission shaft A40 of the second-stage speed regulation motor A39 extends into the second-stage speed regulation channel A38, and a second-stage speed regulation blade A41 is provided on the second-stage transmission shaft A40.

[0081] The upper end of the second-stage speed regulation channel B46 is connected to the upper end of the second-stage air separation channel B25. A second-stage speed regulation motor B47 is also provided on the outer side wall of the second-stage speed regulation channel A38 or the second-stage speed regulation channel C54. The second-stage transmission shaft B48 of the second-stage speed regulation motor B47 extends into the second-stage speed regulation channel B46, and a second-stage speed regulation blade B49 is provided on the second-stage transmission shaft B48.

[0082] The upper end of the second-stage speed regulation channel C54 is connected to the upper end of the second-stage air separation channel C29. A second-stage speed regulation motor C55 is provided on its outer side wall. The second-stage transmission shaft C56 of the second-stage speed regulation motor C55 extends into the second-stage speed regulation channel C54, and a second-stage speed regulation blade C57 is provided on the second-stage transmission shaft C56.

[0083] In this embodiment, the rotation of the first-stage speed regulation motor A35 in the first-stage speed regulation channel A34 and the second-stage speed regulation motor A39 in the second-stage speed regulation channel A38 is controlled by the electric control cabinet 15. Furthermore, the rotation of the first-stage speed regulation blade A37 and the second-stage speed regulation motor A39 is adjusted to regulate the wind speed in the first-stage speed regulation channel A34 and the second-stage speed regulation channel A38, thereby regulating the wind speed and wind force in the first-stage air separation channel A19 and the second-stage air separation channel A21. In this way, the size of the tobacco leaves to be selected can be controlled. If the wind speed and wind force are large, the selected tobacco leaves are larger; if the wind speed and wind force are small, the selected tobacco leaves are smaller. The working principles of the first-stage speed regulation channel B42, the second-stage speed regulation channel B46, the first-stage speed regulation channel C50, and the second-stage speed regulation channel C54 are the same as above.

[0084] Furthermore, transparent glass observation windows 58 are provided on the respective independent side walls of the first-stage speed regulation channel A34, the first-stage speed regulation channel B42, the first-stage speed regulation channel C50, the second-stage speed regulation channel A38, the second-stage speed regulation channel B46, and the first-stage speed regulation channel C50. Through the glass observation windows 58, the air separation situation in the speed regulation channel 7 can be viewed in real time, so as to facilitate the operator to adjust the air volume in different speed regulation channels 7.

[0085] Furthermore, the sedimentation chamber 9 includes a sedimentation channel A59, a sedimentation channel B62, and a sedimentation channel C65, which are used to separately sediment tobacco shreds of different volumes.

[0086] The sedimentation channel A59 is connected to the upper ends of the primary speed regulation channel A34 and the secondary speed regulation channel A38, the sedimentation channel B62 is connected to the upper ends of the primary speed regulation channel B42 and the secondary speed regulation channel B46, and the sedimentation channel C65 is connected to the upper ends of the primary speed regulation channel C50 and the secondary speed regulation channel C54.

[0087] In this embodiment, the aforementioned first-level vibrating screen 5 has divided the mixed shredded stem materials into three categories according to their volume. In order to avoid remixing of materials after air selection, the present invention provides different settling channels in the settling chamber 9. Since the first-level air selection channel A19 and the second-level air selection channel A21 are both connected to the feed port A20, the settling channel A59 can be directly connected to the first-level speed regulating channel A34 and the second-level speed regulating channel A38. Correspondingly, the settling channel B62 should also be connected to the upper ends of the first-level speed regulating channel B42 and the second-level speed regulating channel B46, and the settling channel C65 should be connected to the upper ends of the first-level speed regulating channel C50 and the second-level speed regulating channel C54, so as to achieve the purpose of settling tobacco of different volumes.

[0088] Furthermore, a collecting bin is provided at the bottom of the other side of the sedimentation chamber 9 away from the speed regulating channel 7, and the fan 11 is arranged at the bottom of the collecting bin. The collecting bins include a collecting bin A60, a collecting bin B63 and a collecting bin C66.

[0089] The outlet of the sedimentation channel A59 forms an arc-shaped turning area with the collecting bin A60, and a fan bin A61 connected to the collecting bin A60 is provided above the collecting bin A60; the outlet of the sedimentation channel B62 forms an arc-shaped turning area with the collecting bin B63, and a fan bin B64 connected to the collecting bin A60 is provided above the collecting bin B63.

[0090] The outlet of the sedimentation channel C65 forms an arc-shaped gyration area with the collecting bin C66. A fan bin C67 connected to the collecting bin A60 is provided above the collecting bin C66. The fan bin A61, the fan bin B64 and the fan bin C67 are all connected to the fan 10 so that the fan 10 is connected to the air inlet.

[0091] In this embodiment, tobacco leaves from the primary speed regulating channel A34 and the secondary speed regulating channel A38 reach the whirlpool area at the top of the collecting bin A60 through the settling channel A59, and then fall into the fan 11 through the collecting bin. The size of the connection between the fan bin A61 and the collecting bin A60 is smaller than the size of the fan bin A61. The narrow connection can prevent tobacco leaves from entering the fan bin A61. The fan bin A61 cooperates with the primary air inlet A22 and the secondary air inlet 31 to ensure the wind speed and wind force of the entire channel. The working principles of the settling channel B62, the fan bin B64, the collecting bin B63, the settling channel C65, the fan bin C67 and the collecting bin C66 are the same as above.

[0092] Furthermore, a secondary vibrating upward sieve 12 is provided at the output port of the air lock 11 to finally screen the cut tobacco that has been screened again by the two-stage air separation mechanism 6.

[0093] A conveying channel 13 is provided at the cut tobacco outlet of the secondary vibrating upward sieve 12. A conveyor 14 is provided below the conveying channel 13. The conveyor 14 is located on one side of the platform 2 and is used to convey the screened cut tobacco to the next process. Both the secondary vibrating upward sieve 12 and the conveyor 14 are electrically connected to the electric control cabinet 15. The secondary vibrating upward sieve 12 performs secondary vibration on the air-separated cut tobacco, and the quality of the cut tobacco after secondary vibration screening is effectively improved. Finally, it reaches the conveyor 14 through the conveying channel 13 and runs to the next process through the conveyor 14.

[0094] Still further, a ladder 3 is provided on one side of the platform 2. The ladder 3 is used for the staff to climb onto the platform 2 and detect the operation of each mechanism. The ladder 3 and the platform 2 facilitate the operation and observation of the staff, and the frame 1 plays a fixing role.

[0095] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An automatic recycling device for separating cut tobacco stems, characterized in that, It includes a platform, an electric control cabinet, a lifting and feeding device, a first-stage vibrating screen, a two-stage air separation mechanism, a speed regulating channel and a settling chamber; A support frame is provided below the platform, and a lifting and feeding device is arranged on one side of the platform, which is used for lifting and conveying the mixed material; a first-level vibrating screen is connected to the material outlet of the lifting and feeding device, which is used for preliminary vibration screening of the stems in the mixed material; The two-stage air separation mechanism is connected to the material outlet of the first-stage vibrating screen, and is used to perform secondary air separation on the shredded stems after the initial screening, so as to screen the tobacco stems and shredded tobacco again; the speed regulating channel connects the sedimentation chamber with the two-stage air separation mechanism, and a fan is provided on one side of the sedimentation chamber, and an air inlet matched with the fan is provided at the bottom of the two-stage air separation mechanism, and the air inlet is also used to discharge the tobacco stems, and the speed regulating channel is used to adjust the air volume in the two-stage air separation mechanism; A fan is also installed at the bottom of the other side of the settling chamber, which is used to transport the tobacco settled in the settling chamber out; the electric control cabinet is used to control the lifting feeding equipment, the first-level vibrating screen, the speed regulating channel and the start and stop of the fan; The speed regulating channels include a primary speed regulating channel A, a secondary speed regulating channel A, a primary speed regulating channel B, a secondary speed regulating channel B, a primary speed regulating channel C and a secondary speed regulating channel C arranged in a 2*3 manner, which are used to respectively adjust the air volume of different air selection channels in the two-stage air selection mechanism; A collecting bin is provided at the bottom of the other side of the settling chamber away from the speed regulating channel, and a fan is arranged at the bottom of the collecting bin. The collecting bin includes collecting bins A, B and C. The outlets of the settling channels A, B and C respectively form arc-shaped convolution areas with the collecting bins A, B and C, and the fan bins A, B and C connected to the collecting bins A, B and C are respectively arranged above the collecting bins A, B and C; The fan compartments A, B and C are all connected to the fan so that the fan is connected to the air inlet; The size of the connection point between the fan bin A and the collection bin A is smaller than the size of the fan bin A.

2. The cut tobacco separation and automatic recovery device according to claim 1, wherein The first-stage vibrating incline screen is a three-layer vibrating screen, which is provided with a vibrating screen outlet A, a vibrating screen outlet B and a vibrating screen outlet C, which are respectively connected to the low, middle and high layers of the first-stage vibrating incline screen, and the vibrating screen outlet A, the vibrating screen outlet B and the vibrating screen outlet C are respectively connected to the two-stage air separation mechanism.

3. The cut tobacco separation and automatic recovery device according to claim 2, characterized in that, The two-stage air separation mechanism includes a primary air separation channel A, a secondary air separation channel A, a primary air separation channel B, a secondary air separation channel B, a primary air separation channel C and a secondary air separation channel C arranged in a 2*3 manner, and the primary air separation channel A, the primary air separation channel B and the primary air separation channel C are located on the side facing the primary vibrating incline screen; The primary air selection channel A is provided with a feed port A connected to the vibrating screen outlet A, the primary air selection channel B is provided with a feed port B connected to the vibrating screen outlet B, and the primary air selection channel C is provided with a feed port C connected to the vibrating screen outlet C; The first-level air selection channel A, the first-level air selection channel B and the first-level air selection channel C are used to air select the shredded stems at the three outlets of the first-level vibrating screen; the second-level air selection channel A, the second-level air selection channel B and the second-level air selection channel C are used to air select the shredded stems that fall to the air inlet.

4. The cut stem separating and automatic recycling device according to claim 3, characterized in that, The air inlet includes a primary air inlet A, a primary air inlet B, a primary air inlet C, and a secondary air inlet. The primary air inlet A is arranged below the feed inlet A, and its interior is connected to the primary air separation channel A and the secondary air separation channel A; The primary air inlet B is arranged below the feed inlet B, and its interior is connected to the primary air separation channel B and the secondary air separation channel B; The primary air inlet C is arranged below the feed inlet C, and its interior is connected to the primary air separation channel C and the secondary air separation channel C; The secondary air inlet is arranged below the secondary air separation channel A, the secondary air separation channel B, and the secondary air separation channel C, and it is also connected to a collection channel for discharging tobacco stems.

5. The tobacco stem separation and automatic recovery device according to claim 3, wherein The primary speed regulation channel A is connected to the upper end of the primary air separation channel A, and a primary speed regulation motor A is provided on its outer side wall. The primary transmission shaft A of the primary speed regulation motor A extends into the primary speed regulation channel A, and a primary speed regulation blade A is provided on the primary transmission shaft A; The primary speed regulation channel B is connected to the upper end of the primary air separation channel B. A primary speed regulation motor B is also provided on the outer side wall of the primary speed regulation channel A or the primary speed regulation channel C. The primary transmission shaft B of the primary speed regulation motor B extends into the primary speed regulation channel B, and a primary speed regulation blade B is provided on the primary transmission shaft B; The primary speed regulation channel C is connected to the upper end of the primary air separation channel C, and a primary speed regulation motor C is provided on its outer side wall. The primary transmission shaft C of the primary speed regulation motor C extends into the primary speed regulation channel C, and a primary speed regulation blade C is provided on the primary transmission shaft C; The secondary speed regulation channel A is connected to the upper end of the secondary air separation channel A, and a secondary speed regulation motor A is provided on its outer side wall. The secondary transmission shaft A of the secondary speed regulation motor A extends into the secondary speed regulation channel A, and a secondary speed regulation blade A is provided on the secondary transmission shaft A; The secondary speed regulation channel B is connected to the upper end of the secondary air separation channel B. A secondary speed regulation motor B is also provided on the outer side wall of the secondary speed regulation channel A or the secondary speed regulation channel C. The secondary transmission shaft B of the secondary speed regulation motor B extends into the secondary speed regulation channel B, and a secondary speed regulation blade B is provided on the secondary transmission shaft B; The secondary speed regulation channel C is connected to the upper end of the secondary air separation channel C, and a secondary speed regulation motor C is provided on its outer side wall. The secondary transmission shaft C of the secondary speed regulation motor C extends into the secondary speed regulation channel C, and a secondary speed regulation blade C is provided on the secondary transmission shaft C.

6. The cut tobacco separation automatic recovery device according to claim 5, characterized in that, Transparent glass observation windows are provided on the respective independent side walls of the primary speed regulation channel A, the primary speed regulation channel B, the primary speed regulation channel C, the secondary speed regulation channel A, the secondary speed regulation channel B, and the primary speed regulation channel C to view the air separation situation in the speed regulation channel in real time.

7. The cut tobacco separation and automatic recovery device according to claim 5, characterized in that, The sedimentation chamber includes a sedimentation channel A, a sedimentation channel B, and a sedimentation channel C for separately sedimenting cut tobacco of different volumes; The sedimentation channel A is connected to the upper ends of the primary speed regulation channel A and the secondary speed regulation channel A. The sedimentation channel B is connected to the upper ends of the primary speed regulation channel B and the secondary speed regulation channel B. The sedimentation channel C is connected to the upper ends of the primary speed regulation channel C and the secondary speed regulation channel C.

8. The cut tobacco separation and automatic recovery device according to any one of claims 1 to 7, characterized in that A secondary vibrating upward sieve is also provided at the output port of the air lock to perform a final screening on the cut tobacco that has been screened again by the two-stage air separation mechanism; A conveying channel is provided at the tobacco outlet of the secondary vibrating upward sieve. A conveyor is provided below the conveying channel. The conveyor is located on one side of the platform and is used to convey the screened tobacco to the next process. Both the secondary vibrating upward sieve and the conveyor are electrically connected to the electric control cabinet.

9. The cut tobacco separation and automatic recovery device according to claim 8, characterized in that, A ladder is also provided on one side of the platform. The ladder is used for the staff to climb onto the platform and detect the operation of each mechanism.

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