A tobacco mixing device and a tobacco mixing method

Abstract

The present invention discloses a tobacco blending device and a blending method thereof, comprising: a blending barrel, the upper and lower parts of which are respectively fixedly mounted with a cover and a conical bucket; a blending mechanism, comprising a through-core circulation tube rotatably mounted on the lower side of the cover, the upper and lower ends of the through-core circulation tube being spaced from the discharge port and the cover, the material enters from the bottom of the through-core circulation tube along with the gas and then centrifugally dispersed from the top; a discharge mechanism, comprising a hollow spiral rod rotatably mounted below the discharge port of the blending barrel, when air is supplied to the air guide hole of the hollow spiral rod by a blower, the tobacco pushed forward by the hollow spiral rod is blown outward; a pneumatic circulation mechanism, used to control the opening and closing of the discharge port of the conical bucket, and air is supplied to the through-core circulation tube by the pneumatic circulation mechanism. The present invention improves the blending rate and automation of tobacco, effectively improves the uniformity and fluffiness of tobacco blending, and improves the quality of tobacco blending.

Description

Technical Field

[0001] The invention relates to the technical field of shredded tobacco production, and in particular to shredded tobacco mixing equipment and a mixing method thereof. Background Art

[0002] Cut tobacco refers to tobacco leaves cut into shreds, granules, flakes, powder or other shapes, then added with auxiliary materials, stirred, fermented, stored, and sold for smoking without rolling. After cutting, the tobacco leaves need to be mixed and stirred to ensure the uniformity of the quality of the cut tobacco and the looseness of the cut tobacco.

[0003] Traditionally, tobacco is mainly mixed manually or mechanically. The efficiency and quality of manual mixing are stagnant, and the labor cost is high, which is very troublesome. At present, mechanical mixing generally uses a roller-type mixing barrel to achieve flipping and mixing by rotating at a low speed, but the mixing efficiency is low, the mixing effect is poor, and it is not easy to stir the entangled tobacco, which is easy to cause agglomeration and is not conducive to subsequent processing; and the use of high-speed rotating mixing machinery will break the tobacco, resulting in reduced quality, which is not suitable for mixing high-quality tobacco.

[0004] Therefore, the research purpose of the present invention is to design a tobacco mixing device and a mixing method that can improve the mixing rate and automation level of tobacco, effectively improve the uniformity and fluffiness of tobacco mixing, and further improve the quality of tobacco mixing. Summary of the invention

[0005] In view of the technical problems existing in the above-mentioned prior art, the present invention provides a tobacco mixing device and a mixing method thereof, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0006] The technical solution of the present invention is:

[0007] A tobacco mixing device, comprising:

[0008] A mixing barrel, the upper and lower parts of which are respectively fixedly mounted with corresponding sealing covers and conical buckets, the sealing covers are provided with corresponding feeding pipes and exhaust pipes, and the bottom of the conical bucket is provided with corresponding discharge ports;

[0009] The mixing mechanism comprises a through-core circulation pipe which is driven and rotated by a corresponding driving motor and installed on the lower side of the sealing cover, and a corresponding material loosening component is fixedly installed on the lower outer surface of the through-core circulation pipe; a circulation channel connecting the upper and lower ends of the through-core circulation pipe is arranged in a circular array on the upper part of the through-core circulation pipe, and the guide grooves connected with the circulation channel are arranged in a spiral arc shape from bottom to top; the upper and lower ends of the through-core circulation pipe are respectively arranged at intervals with the discharge port and the sealing cover, and a material guide member which is coaxial with the through-core circulation pipe and rotates synchronously is arranged at intervals above the through-core circulation pipe, and the material guide member is arranged in an inclined shape facing the bottom surface of the through-core circulation pipe;

[0010] The material discharging mechanism comprises a receiving member connected and installed below the discharge port, a hollow spiral rod is installed in the middle of the receiving member through a corresponding material guide groove for transverse rotation, a corresponding material discharge port is arranged on the side of the receiving member in the rotation direction of the hollow spiral rod, and an air guide hole connected to the material discharge port is arranged in the middle of the hollow spiral rod; when air is supplied to the air guide hole by a blower, the tobacco shreds pushed forward by the hollow spiral rod are blown out;

[0011] The pneumatic circulation mechanism is used to control the opening and closing of the discharge port of the conical bucket, and the pneumatic circulation mechanism is used to supply air to the through-core circulation pipe.

[0012] The top of the material guide is connected to the output shaft of the driving motor and is rotatably mounted on the cover through corresponding bearings, and the bottom thereof extends downward to the bottom of the cover and is arranged in an inverted cone shape; the through-hole circulation tube and the material guide are connected through corresponding connecting cylinders, and the outer wall of the connecting cylinder is located between the material guide and the through-hole circulation tube and is provided with a plurality of material guide ports at circumferential intervals; the bottom part of the connecting cylinder is sleeved on the outer side of the upper part of the through-hole circulation tube and is fixed by corresponding bolts, and the top of the connecting cylinder is sleeved on the material guide and is fixed by corresponding bolts, and when the driving motor drives the material guide to rotate, it drives the through-hole circulation tube and the connecting cylinder to rotate synchronously.

[0013] The outer side of the material guide is located between the connecting cylinder and the cover and is sleeved with a corresponding spring and a double-layer nylon sealing ring; the top of the cover is integrally formed with a mounting cylinder for mounting a drive motor and a bearing fixed outwardly, and a through hole for penetrating and installing the material guide is coaxially arranged in the mounting cylinder, and an annular groove coaxially arranged with the through hole is embedded in the bottom of the cover, and the spring and the upper nylon sealing ring are installed in the annular groove.

[0014] The hollow spiral rod is driven by a corresponding hollow shaft motor, and the air guide hole in the middle thereof is connected to the air outlet of the blower through the hollow shaft motor; the blower delivers air to the outlet of the receiving part through the hollow shaft motor and the hollow spiral rod.

[0015] The pneumatic circulation mechanism includes an air pipe cover which is rotatably mounted on the outside of the discharge port of the conical bucket and is used to close the discharge port, and an air guide channel connecting the mixing barrel and the turbine blower is arranged inside the air pipe cover; during unloading, the air pipe cover is flipped downward to connect the discharge port with the receiving part, and during mixing, the air pipe cover is flipped upward to close the discharge port, and the air outlet of the air guide channel faces the circulation channel of the through-core circulation pipe.

[0016] The interior of the receiving part is provided with a bucket-shaped material guiding groove extending inward from the top thereof, and the lower side of the material guiding groove is connected with an embedding hole in the shape of a circular arc surface which passes through the left and right ends of the receiving part, and the hollow spiral rod is installed in the embedding hole by horizontal rotation; a corresponding material guiding hopper is connected between the discharge port of the conical bucket and the receiving part, and the discharge port of the material guiding hopper is opposite to the material guiding groove of the receiving part, and a clearance area for accommodating the trachea cover is integrally extended outward on the side of the material guiding hopper where the trachea cover is flipped downward.

[0017] A discharge pipe coaxially arranged with the hollow screw rod is installed outwardly at the discharge port of the receiving part, the diameter of the discharge pipe is larger than the diameter of the hollow screw rod, and the discharge end of the discharge pipe is connected to a discharge pipe with a smaller diameter than the discharge pipe through a corresponding reducing tapered pipe.

[0018] The end of the exhaust pipe located in the mixing barrel is detachably mounted with a corresponding filter screen via a corresponding fixing ring.

[0019] A mixing method using the above-mentioned tobacco mixing equipment comprises the following specific steps:

[0020] S1: close the discharge port of the conical bucket through the pneumatic circulation mechanism, and discharge the tobacco into the mixing cylinder from the feeding pipe;

[0021] S2: When the tobacco is discharged, the motor is driven to rotate, driving the through-core circulation tube to rotate, and driving the material loosening component to rotate. The tobacco in the mixing barrel is broken up by the rotating material loosening component and initial circumferential stirring and mixing is achieved;

[0022] S3: While breaking up and stirring, air is sent into the mixing barrel through the pneumatic circulation mechanism, and the high-speed airflow is used to generate negative pressure to suck the tobacco at the bottom of the conical bucket into the through-core circulation tube and blow it upward. The tobacco reaches the top of the through-core circulation tube and is thrown out with the help of the rotating through-core circulation tube and the material guide, and is transferred downward with gravity back to the conical bucket. Steps S2 and S3 are repeated repeatedly to achieve vertical three-dimensional circulation mixing of tobacco.

[0023] S4: After completing step S2 and step S3, the discharge mechanism is started to rotate the hollow screw rod, and the blower supplies air to the air guide hole; then, the pneumatic circulation mechanism is controlled to stop supplying air to the mixing barrel, and the pneumatic circulation mechanism is controlled to open the discharge port of the conical bucket, thereby connecting the mixing barrel and the receiving member;

[0024] S5: The tobacco is discharged into the receiving part and spirally discharged forward along with the rotating hollow screw rod. When the material reaches the end of the hollow screw rod, the gas in the air guide hole of the hollow screw rod gradually and evenly blows the discharged tobacco forward laterally and realizes transverse mixing.

[0025] Advantages of the present invention:

[0026] 1) In the present invention, a rotating through-core circulation pipe is additionally provided on the basis of the preliminary breaking up of the tobacco by the rotating material loosening component, and the Bernoulli principle is used to input a high-speed airflow vertically upward at the discharge port of the conical bucket of the mixing barrel, thereby generating a negative pressure, so that the tobacco that has been broken up and preliminarily mixed is sucked into the circulation channel of the through-core circulation pipe, transmitted upward along the airflow direction, thrown outward along the rotating through-core circulation pipe and the material guide, and guided downward with gravity, so as to realize the double mixing of circumferential stirring and vertical three-dimensional circulation repeatedly, thereby improving the uniformity of the mixing; and the material loosening component can effectively prevent the tobacco from agglomerating by breaking up the tobacco in advance, thereby promoting the tobacco to smoothly enter the through-core circulation pipe, avoid clogging, and ensure practicality; and the tobacco can be further blown away while the mixing is realized by the blowing of the high-pressure airflow, thereby improving the fluffiness of the mixing.

[0027] 2) However, simply relying on airflow to produce tumbling circulation mixing is relatively chaotic and irregular. Therefore, the present invention further arranges guide grooves connected to the circulation channel in a circular array on the top of the through-core circulation tube. The guide grooves are arranged in a spiral arc shape from bottom to top, and the bottom of the material guide member that rotates with the through-core circulation tube is arranged in an inverted cone slope shape; the tobacco is thrown outward through the guide groove in a regular vortex-like spiral centrifugal manner, and the setting of the material guide member allows the tobacco to be thrown out to the surroundings for dispersion and guided downward to form an effective circulation, and the inverted cone slope setting of the material guide member can maximize the reduction of the inhibitory effect of the material guide member on the airflow, thereby improving the practical effect of the present invention.

[0028] 3) The present invention installs a spiral rod in a receiving part for horizontal rotation, and a bucket-shaped material guide groove in the receiving part guides the mixed tobacco to the spiral rod, and the motor drives the spiral rod to rotate and drives the tobacco to be transported forward for discharge. Although the spiral rod alone can achieve the effect of material transmission, it will cause the mixed tobacco to be squeezed as the spiral rod transports and discharges the material, affecting its fluffiness. Therefore, the present invention configures the motor as a hollow shaft motor and the spiral rod as a hollow structure, and uses a blower to send air to the discharge port of the receiving part through the hollow shaft motor and the hollow spiral rod, so that the material pushed forward by the hollow spiral rod is evenly blown outward, and the material is discharged while the spiral guides the material and blows air at the same time, which can not only further perform horizontal mixing and improve the uniformity of mixing, but also effectively avoid the extrusion problem caused by spiral discharge, and further improve the fluffiness of the tobacco.

[0029] 4) In the present invention, a corresponding discharge pipe is coaxially arranged outside the discharge port of the receiving part. The diameter of the discharge pipe is larger than the diameter of the hollow spiral rod to facilitate smooth discharge. The discharge end of the discharge pipe is connected to a discharge pipe with a smaller diameter than that of the discharge pipe through a corresponding reducing tapered pipe. The reducing tapered pipe is used to connect two discharge pipes with different diameters and the discharge pipe, and the discharge is blown together to increase the discharge speed without affecting the fluffiness of the tobacco.

[0030] 5) The tobacco of the present invention is driven by a rotating material loosening component to carry out preliminary circumferential mixing; the tobacco is longitudinally conveyed by the cooperation of the through-core circulation tube and the pneumatic circulation mechanism, and then spirally upward and evenly centrifugally dispersed regularly, and falls by gravity to continue circumferential stirring and longitudinal up and down circulation alternately to achieve longitudinal three-dimensional mixing; when passing through the discharge mechanism, the tobacco is gradually conveyed horizontally by the rotating hollow spiral rod, and the tobacco is blown out at a uniform speed and quantity through the hollow spiral rod by a blower to achieve horizontal mixing. Thus, while achieving the smooth completion of each process, the tobacco is mixed in all directions in combination with the corresponding pneumatic mechanism. On the basis of improving the degree of automation of tobacco mixing, it not only effectively improves the mixing uniformity, but also significantly improves the fluffiness of the tobacco, ensuring the production quality of tobacco.

[0031] 6) In the present invention, corresponding springs and nylon sealing rings are sleeved between the top of the connection between the material guide and the connecting cylinder and the cover. The springs and nylon sealing rings cooperate to improve the sealing of the connection between the material guide and the cover, thereby effectively preventing the floating tobacco from being blocked at the connection to avoid hindering the rotation of the motor-driven circulation tube. In addition, the surface smoothness of the nylon sealing ring ensures that the sealing ring will not hinder or cause excessive friction to the low-speed rotating motor, thereby ensuring the normal rotation of the circulation tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention.

[0033] Figure 2 for Figure 1 Schematic diagram of the structure without the mixing barrel, protective baffles and part of the supporting frame.

[0034] Figure 3 for Figure 1 AA section diagram of .

[0035] Figure 4 for Figure 1 Schematic diagram of the cross-section of BB.

[0036] Figure 5 It is a schematic diagram of the installation of the through-core circulation pipe, material guide and connecting cylinder.

[0037] Figure 6 for Figure 5 Schematic cross-section diagram.

[0038] Figure 7 It is a structural schematic diagram of the through-core circulation pipe of the present invention.

[0039] In the accompanying drawings: mixing barrel 1, sealing cover 2, conical bucket 3, make way area 2401, mounting plate 301, feed pipe 4, exhaust pipe 5, drive motor 6, through-core circulation pipe 7, circulation channel 701, guide groove 702, material loose component 8, receiving part 9, guide groove 901, hollow screw rod 10, hollow shaft motor 11, air guide hole 101, blower 12, air pipe cover 13, turbo blower 14, material guide part 15, connecting cylinder part 16, guide port 1601, spring 17, nylon sealing ring 18, power motor 19, discharge pipe 20, display touch screen 21, protective partition 22, support frame 23, guide hopper 24, discharge pipe 25. DETAILED DESCRIPTION

[0040] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the embodiments in conjunction with the accompanying drawings:

[0041] Example 1

[0042] refer to Figure 1-7 , a tobacco mixing device, comprising:

[0043] A mixing barrel 1, the upper and lower parts of which are respectively fixedly mounted with corresponding sealing covers 2 and conical buckets 3, the sealing covers 2 are provided with corresponding feeding pipes 4 and exhaust pipes 5, and the bottom of the conical bucket 3 is provided with corresponding discharge ports;

[0044] The mixing mechanism comprises a through-core circulation pipe 7 which is driven and rotated by a corresponding driving motor 6 and is installed on the lower side of the sealing cover 2. A corresponding material loosening assembly 8 is fixedly installed on the lower outer surface of the through-core circulation pipe 7. A circulation channel 701 which communicates with the upper and lower ends of the through-core circulation pipe 7 is arranged in a circular array on the upper part of the through-core circulation pipe 7. The guide grooves 702 which communicate with the circulation channel 701 are arranged in a spiral arc shape from bottom to top. The upper and lower ends of the through-core circulation pipe 7 are respectively spaced apart from the discharge port and the sealing cover 2. A material guide 15 which is coaxial with the through-core circulation pipe 7 and rotates synchronously with the through-core circulation pipe 7 is spaced apart above the through-core circulation pipe 7. The material guide 15 is arranged in an inclined shape facing the bottom surface of the through-core circulation pipe 7.

[0045] The material discharging mechanism comprises a receiving member 9 connected and installed below the discharge port, a hollow screw rod 10 is installed in the middle of the receiving member 9 through a corresponding material guide groove 901 for horizontal rotation, a corresponding material discharge port is arranged on the side of the receiving member 9 in the rotation direction of the hollow screw rod 10, and an air guide hole 101 connected to the material discharge port is arranged in the middle of the hollow screw rod 10; when air is supplied to the air guide hole 101 by a blower 12, the tobacco shreds pushed forward by the hollow screw rod 10 are blown out;

[0046] The pneumatic circulation mechanism is used to control the opening and closing of the discharge port of the conical bucket 3, and to supply air to the through-core circulation pipe 7 through the pneumatic circulation mechanism.

[0047] The present invention adds a rotating through-core circulation pipe 7 on the basis of the preliminary breaking up of the tobacco by the rotating material loosening component 8, and utilizes the Bernoulli principle to input a high-speed airflow vertically upward at the discharge port of the conical bucket 3 of the mixing barrel 1, thereby generating a negative pressure, so that the tobacco that has been broken up and preliminarily mixed is sucked into the circulation channel 701 of the through-core circulation pipe 7, and is transmitted upward along the airflow direction, thrown outward along the rotating through-core circulation pipe 7 and the material guide 15, and guided downward by gravity, so as to realize the double mixing of circumferential stirring and vertical three-dimensional circulation repeatedly, thereby improving the uniformity of the mixing; and the material loosening component 8 can effectively prevent the tobacco from agglomerating by breaking up the tobacco in advance, thereby promoting the tobacco to smoothly enter the through-core circulation pipe 7, avoid clogging, and ensure practicality; and the tobacco can be further blown away while the mixing is realized by the high-pressure airflow, thereby improving the fluffiness of the mixing.

[0048] The top of the material guide 15 is connected to the output shaft of the drive motor 6 and is rotatably mounted on the cover 2 through corresponding bearings, and the bottom thereof extends downward to the bottom of the cover 2 and is arranged in an inverted cone shape; the through-hole circulation pipe 7 and the material guide 15 are connected through a corresponding connecting cylinder 16, and the outer wall of the connecting cylinder 16 is located between the material guide 15 and the through-hole circulation pipe 7 and is provided with a plurality of material guide ports 1601 at circumferential intervals; the bottom of the connecting cylinder 16 is sleeved on the outer side of the upper part of the through-hole circulation pipe 7 and is fixed by corresponding bolts, and the top of the connecting cylinder 16 is sleeved on the material guide 15 and is fixed by corresponding bolts, and when the drive motor 6 drives the material guide 15 to rotate, it drives the through-hole circulation pipe 7 and the connecting cylinder 16 to rotate synchronously.

[0049] However, simply relying on airflow to produce tumbling circulation mixing is rather chaotic and irregular. Therefore, the present invention further arranges guide grooves 702 connected to the circulation channel 701 in a circular array on the top of the through-core circulation tube 7. The guide grooves 702 are arranged in a spiral arc shape from bottom to top, and the bottom of the material guide 15 that rotates with the through-core circulation tube 7 is arranged in an inverted cone slope shape; the tobacco shreds are thrown outward through the guide grooves 702 in a regular vortex-like spiral centrifugal manner, and the setting of the material guide 15 allows the tobacco shreds to be thrown around and dispersed and guided downward to form an effective circulation, and the inverted cone slope setting of the material guide 15 can maximize the reduction of the inhibitory effect of the material guide 15 on the airflow, thereby improving the practical effect of the present invention.

[0050] The outer side of the material guide 15 is located between the connecting cylinder 16 and the cover 2 and is sleeved with a corresponding spring 17 and a double-layer nylon sealing ring 18; the top of the cover 2 is integrally formed with a mounting cylinder for mounting the drive motor 6 and the bearing fixed to the outside, and a through hole for penetrating and installing the material guide 15 is coaxially arranged in the mounting cylinder, and an annular groove coaxially arranged with the through hole is embedded in the bottom of the cover 2, and the spring 17 and the upper nylon sealing ring 18 are installed in the annular groove.

[0051] In the present invention, a corresponding spring 17 and a nylon sealing ring 18 are sleeved between the top of the connection between the material guide 15 and the connecting cylinder 16 and the cover 2. The spring 17 and the nylon sealing ring 18 cooperate to improve the sealing performance of the connection between the material guide 15 and the cover 2, thereby effectively preventing the floating tobacco from being blocked at the connection to avoid hindering the motor-driven rotation of the through-core circulation tube 7; and the surface smoothness of the nylon sealing ring 18 ensures that the sealing ring will not hinder or cause excessive friction to the low-speed rotating motor, thereby ensuring the normal rotation of the through-core circulation tube 7.

[0052] The hollow screw rod 10 is driven by a corresponding hollow shaft motor 11, and the air guide hole 101 in the middle thereof is connected to the air outlet of the blower 12 through the hollow shaft motor 11; the blower 12 delivers air to the outlet of the receiving member 9 through the hollow shaft motor 11 and the hollow screw rod 10.

[0053] The present invention installs a spiral rod in a receiving part 9 for horizontal rotation, and a bucket-shaped material guide groove 901 in the receiving part 9 guides the mixed tobacco to the spiral rod, and the motor drives the spiral rod to rotate and drives the tobacco to be transported forward for discharge. Although the spiral rod alone can achieve the effect of material transmission, it will cause the mixed tobacco to be squeezed as the spiral rod transports and discharges the material, affecting its fluffiness. Therefore, the present invention sets the motor as a hollow shaft motor 11 and the spiral rod as a hollow structure, and uses a blower 12 to supply air to the discharge port of the receiving part 9 through the hollow shaft motor 11 and the hollow spiral rod 10, so that the material pushed forward by the hollow spiral rod 10 is evenly blown outward, and the material is blown out while the spiral guides the material. Not only can the horizontal mixing be further carried out to improve the uniformity of the mixing, but the extrusion problem caused by the spiral discharge can also be effectively avoided, and the fluffiness of the tobacco can be further improved.

[0054] The pneumatic circulation mechanism includes an air pipe cover 13 which is rotatably mounted on the outside of the discharge port of the conical bucket 3 and is used to close the discharge port. The interior of the air pipe cover 13 is provided with an air guide channel connecting the mixing barrel 1 and the turbine blower 14; during unloading, the air pipe cover 13 is flipped downward to connect the discharge port with the receiving part 9, and during mixing, the air pipe cover 13 is flipped upward to close the discharge port, and the air outlet of the air guide channel is opposite to the circulation channel 701 of the through-core circulation pipe 7.

[0055] The interior of the receiving part 9 is provided with a bucket-shaped material guide groove 901 extending inward from the top thereof, and the lower side of the material guide groove 901 is connected to a mounting hole in the shape of a circular arc surface that passes through the left and right ends of the receiving part 9, and the hollow screw rod 10 is installed in the mounting hole for horizontal rotation; a corresponding material guide hopper 24 is connected between the discharge port of the conical bucket 3 and the receiving part 9, and the discharge port of the material guide hopper 24 is opposite to the material guide groove 901 of the receiving part 9, and the material guide hopper 24 is located on the side of the trachea cover 13 that is flipped downward and extends outward integrally with a makeshift area 2401 for accommodating the trachea cover 13.

[0056] The tobacco shreds of the present invention are driven by the rotating material loosening component 8 to carry out preliminary circumferential mixing; the tobacco shreds are longitudinally conveyed by the cooperation of the through-core circulation tube 7 and the pneumatic circulation mechanism, and then spirally upward and evenly centrifugally dispersed regularly, and fall by gravity to continue circumferential stirring and longitudinal up and down circulation alternately to achieve longitudinal three-dimensional mixing; when passing through the discharge mechanism, the tobacco shreds are gradually conveyed horizontally by the rotating hollow spiral rod 10, and the blower 12 is used to blow the tobacco shreds out at a uniform speed and quantity through the hollow spiral rod 10 to achieve horizontal mixing. Thus, while achieving the smooth completion of each process, the corresponding pneumatic mechanism is combined to achieve multi-directional mixing of tobacco shreds, and on the basis of improving the degree of automation of tobacco shred mixing, not only the mixing uniformity is effectively improved, but also the fluffiness of tobacco shreds is significantly improved, ensuring the production quality of tobacco shreds.

[0057] A discharge pipe 20 coaxially arranged with the hollow screw rod 10 is installed outwardly at the discharge port of the receiving member 9, and the diameter of the discharge pipe 20 is larger than the diameter of the hollow screw rod 10. The discharge end of the discharge pipe 20 is connected to a discharge pipe 25 whose diameter is smaller than that of the discharge pipe 20 through a corresponding reducing tapered pipe.

[0058] In the present invention, a corresponding discharge pipe is coaxially provided on the outer side of the discharge port of the receiving member 9. The diameter of the discharge pipe is larger than the diameter of the hollow spiral rod 10 to facilitate smooth discharge. The discharge end of the discharge pipe is connected to a discharge pipe with a smaller diameter than that of the discharge pipe through a corresponding reducing tapered pipe. The reducing tapered pipe is used to connect two discharge pipes with different diameters and the discharge pipe, and the discharge is blown together to increase the discharge speed without affecting the fluffiness of the tobacco.

[0059] The end of the exhaust pipe 5 located in the mixing cylinder 1 is detachably mounted with a corresponding filter screen through a corresponding fixing ring. The filter screen is used to filter the tobacco, thereby effectively reducing the amount of tobacco discharged with the gas.

[0060] Furthermore, a group of mounting plates 301 are fixedly connected to the outer wall intervals of the conical bucket 3, and the air pipe cover 13 is driven to rotate and installed on the group of mounting plates 301 by the corresponding power motor 19, and its internal air guide channel is connected to the air outlet of the turbine fan 14 through the corresponding air pipe.

[0061] Furthermore, the tobacco mixing equipment also includes a support frame 23 for installing the mixing barrel 1, the mixing mechanism, the discharging mechanism and the pneumatic circulation mechanism, a protective baffle 22 covering the outside of the support frame 23, and a control system for connecting the drive motor 6, the turbine fan 14, the blower 12, the hollow shaft motor 11 and the power motor 19, and the control system is connected to a display touch screen 21 arranged on the support frame 23.

[0062] Example 2

[0063] A mixing method using the tobacco mixing device described in Example 1 comprises the following specific steps:

[0064] S1: The discharge port of the conical bucket 3 is closed through the pneumatic circulation mechanism, and the tobacco is fed into the mixing cylinder 1 through the feed pipe 4;

[0065] S2: While the tobacco is being discharged, the motor 6 is driven to rotate, driving the through-core circulation tube 7 to rotate, and driving the material loosening component 8 to rotate, so that the tobacco in the mixing barrel 1 is broken up by the rotating material loosening component 8 and achieves preliminary circumferential stirring and mixing;

[0066] S3: While breaking up and stirring, air is supplied into the mixing barrel 1 through the pneumatic circulation mechanism, and the high-speed airflow is used to generate negative pressure to suck the tobacco at the bottom of the conical bucket 3 into the through-core circulation tube 7 and blow it upward. The tobacco reaches the top of the through-core circulation tube 7 and is thrown outward in cooperation with the rotating through-core circulation tube 7 and the material guide 15, and is transferred downward by gravity back to the conical bucket 3. Steps S2 and S3 are repeated repeatedly to achieve vertical three-dimensional circulation mixing of tobacco.

[0067] S4: After completing step S2 and step S3, the discharge mechanism is started to rotate the hollow screw rod 10, and at the same time, the blower 12 supplies air to the air guide hole 101; then, the pneumatic circulation mechanism is controlled to stop supplying air to the mixing barrel 1, and the pneumatic circulation mechanism is controlled to open the discharge port of the conical bucket 3, thereby connecting the mixing barrel 1 and the receiving member 9;

[0068] S5: The tobacco is discharged into the receiving part 9 and spirally discharged forward along with the rotating hollow screw rod 10. When the material reaches the end of the hollow screw rod 10, the gas in the air guide hole 101 of the hollow screw rod 10 gradually and evenly blows the discharged tobacco forward laterally and realizes horizontal mixing.

[0069] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A tobacco mixing device, characterized in that: include: A mixing barrel (1) having corresponding sealing covers (2) and conical buckets (3) fixedly mounted on the upper and lower parts thereof, respectively; the sealing covers (2) are provided with corresponding feeding pipes (4) and exhaust pipes (5); and a corresponding discharge port is provided at the bottom of the conical bucket (3); The mixing mechanism comprises a through-core circulation tube (7) which is driven and rotated by a corresponding driving motor (6) and mounted on the lower side of the sealing cover (2); a corresponding material loosening assembly (8) is fixedly mounted on the lower outer surface of the through-core circulation tube (7); a circulation channel (701) which communicates with the upper and lower ends of the through-core circulation tube (7) is arranged in a circular array on the upper part of the through-core circulation tube (7); the guide grooves (702) which communicate with the circulation channel (701) are arranged in a spiral arc shape from bottom to top; the upper and lower ends of the through-core circulation tube (7) are respectively spaced apart from the discharge port and the sealing cover (2); a material guide (15) which is coaxial with the through-core circulation tube (7) and rotates synchronously with the through-core circulation tube (7) is spaced apart above the through-core circulation tube (7); the material guide (15) is arranged in an inclined shape facing the bottom surface of the through-core circulation tube (7); The material discharge mechanism comprises a receiving member (9) connected and installed below the discharge port, a hollow screw rod (10) being installed on the middle part of the receiving member (9) for horizontal rotation through a corresponding material guide groove (901), a corresponding material discharge port being arranged on the side of the receiving member (9) in the rotation direction of the hollow screw rod (10), and an air guide hole (101) connected to the material discharge port being arranged in the middle part of the hollow screw rod (10); when air is supplied to the air guide hole (101) by a blower (12), the tobacco shreds pushed forward by the hollow screw rod (10) are blown out; The pneumatic circulation mechanism is used to control the opening and closing of the discharge port of the conical bucket (3), and to supply air to the through-core circulation pipe (7) through the pneumatic circulation mechanism.

2. The tobacco blending equipment according to claim 1, characterized in that: The top of the material guide (15) is connected to the output shaft of the drive motor (6) and is rotatably mounted on the cover (2) via corresponding bearings, and the bottom of the material guide (15) extends downward to the bottom of the cover (2) and is arranged in the shape of an inverted cone. The central circulation pipe (7) and the material guide (15) are connected via corresponding connecting cylinders (16), and the outer wall of the connecting cylinder (16) is located between the material guide (15) and the central circulation pipe (7) and is provided with a plurality of material guide openings (1601) at circumferential intervals. The bottom of the connecting cylinder (16) is sleeved on the outer side of the upper part of the central circulation pipe (7) and is fixed by corresponding bolts, and the top of the connecting cylinder (16) is sleeved on the material guide (15) and is fixed by corresponding bolts. When the drive motor (6) drives the material guide (15) to rotate, the central circulation pipe (7) and the connecting cylinder (16) are driven to rotate synchronously.

3. The tobacco blending equipment according to claim 2, characterized in that: The outer side of the material guide (15) is located between the connecting cylinder (16) and the cover (2) and is sleeved with a corresponding spring (17) and a double-layer nylon sealing ring (18); the top of the cover (2) is integrally formed with a mounting cylinder for mounting a drive motor (6) and a bearing, and is fixedly connected to the outside; a through hole for penetrating and mounting the material guide (15) is coaxially arranged in the mounting cylinder; an annular groove coaxially arranged with the through hole is embedded in the bottom of the cover (2); the spring (17) and the upper nylon sealing ring (18) are installed in the annular groove.

4. The tobacco blending equipment according to claim 1, characterized in that: The hollow screw rod (10) is driven by a corresponding hollow shaft motor (11), and the air guide hole (101) in the middle thereof is connected to the air outlet of the blower (12) through the hollow shaft motor (11); air is delivered to the outlet of the receiving member (9) through the blower (12) via the hollow shaft motor (11) and the hollow screw rod (10).

5. The tobacco blending equipment according to claim 1, characterized in that: The pneumatic circulation mechanism comprises an air pipe cover (13) which is rotatably mounted on the outside of the discharge port of the conical bucket (3) and is used to close the discharge port, and an air guide channel connecting the mixing barrel (1) and the turbine fan (14) is arranged inside the air pipe cover (13); when discharging, the air pipe cover (13) is turned downward to connect the discharge port with the receiving member (9); when mixing, the air pipe cover (13) is turned upward to close the discharge port, and the air outlet of the air guide channel is directly opposite to the circulation channel (701) of the through-core circulation pipe (7).

6. The tobacco blending equipment according to claim 5, characterized in that: The receiving member (9) is provided with a hopper-shaped material guide groove (901) extending inward from the top thereof, and the lower side of the material guide groove (901) is connected with an arc-shaped embedding hole penetrating the left and right ends of the receiving member (9), and the hollow spiral rod (10) is installed in the embedding hole for transverse rotation; a corresponding material guide hopper (24) is connected between the discharge port of the conical hopper (3) and the receiving member (9), and the discharge port of the material guide hopper (24) is directly opposite to the material guide groove (901) of the receiving member (9), and a clearance area (2401) for accommodating the trachea cover (13) is integrally extended outward on the side of the material guide hopper (24) where the trachea cover (13) is turned downward.

7. The tobacco blending equipment according to claim 1, characterized in that: A discharge pipe (20) is installed outwardly at the discharge port of the receiving member (9) and is coaxially arranged with the hollow screw rod (10); the diameter of the discharge pipe (20) is larger than the diameter of the hollow screw rod (10); and the discharge end of the discharge pipe (20) is connected to a discharge pipe (25) having a smaller diameter than the discharge pipe (20) via a corresponding reducing tapered pipe.

8. The tobacco blending equipment according to claim 1, characterized in that: The end of the exhaust pipe (5) located inside the mixing barrel (1) is detachably mounted with a corresponding filter screen via a corresponding fixing ring.

9. A mixing method of the tobacco blending device according to any one of claims 1 to 8, characterized in that: The specific steps include: S1: closing the discharge port of the conical bucket (3) through a pneumatic circulation mechanism, and feeding the shredded tobacco into the mixing barrel (1) through a feeding pipe (4); S2: while the tobacco is being fed, the driving motor (6) rotates to drive the through-core circulation tube (7) to rotate, and drives the material loosening component (8) to rotate, so that the tobacco in the mixing barrel (1) is broken up by the rotating material loosening component (8) and preliminary circumferential stirring and mixing is achieved; S3: while the tobacco is being dispersed and stirred, air is supplied into the mixing barrel (1) through a pneumatic circulation mechanism, and negative pressure is generated by the high-speed airflow to suck the tobacco shreds at the bottom of the conical bucket (3) into the through-core circulation tube (7) and blow them upwards, and the tobacco shreds reach the top of the through-core circulation tube (7) and are thrown outwards in cooperation with the rotating through-core circulation tube (7) and the material guide (15), and are then transferred downwards by gravity back into the conical bucket (3), and steps S2 and S3 are repeated repeatedly to achieve vertical three-dimensional circulation mixing of the tobacco shreds; S4: After completing step S2 and step S3, the discharge mechanism is started to rotate the hollow screw rod (10), and at the same time, the blower (12) supplies air to the air guide hole (101); then, the air supply to the mixing barrel (1) is stopped by the pneumatic circulation mechanism, and the discharge port of the conical bucket (3) is opened by the pneumatic circulation mechanism, thereby connecting the mixing barrel (1) and the receiving member (9); S5: The tobacco shreds are discharged into the receiving member (9) and discharged forward along with the rotating hollow screw rod (10). When the material reaches the end of the hollow screw rod (10), the gas in the air guide hole (101) of the hollow screw rod (10) gradually and evenly blows the discharged tobacco shreds forward laterally, thereby achieving transverse mixing.

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