Compressed air cigarette blowing machine

Abstract

The invention discloses a compressed air cigarette blowing machine which comprises a case and is characterized in that a three-layer structure is arranged in the case and sequentially comprises an upper-layer platform, a middle drawing platform and a lower-layer drawing platform from top to bottom, a cigarette feeding mechanism is arranged on the upper-layer platform, a material receiving, weighing, cut tobacco blowing and sorting mechanism is arranged on the middle drawing platform, and a material receiving, weighing, cut tobacco blowing and sorting mechanism is arranged on the lower-layer drawing platform. A classified collection mechanism is arranged on the lower-layer drawing platform, and the material receiving, weighing, tobacco shred blowing and sorting mechanism is located below the tobacco shred feeding mechanism. According to the automatic tobacco shred blowing machine, the automatic clamping jaw is used, so that the automatic tobacco shred blowing machine can adapt to cigarettes with various diameters, the speed of treating the cigarettes with the same specification is greatly increased, full-automatic tobacco shred blowing of the cigarettes is achieved by arranging the automatic discharging mechanism, the automatic material receiving, weighing and sorting mechanism and the tobacco shred blowing mechanism, damage to empty tobacco tubes and tobacco shreds is avoided to the maximum extent, and the tobacco shred blowing efficiency is improved. The recycling rate of the empty smoke tube and the tobacco shreds is greatly improved, and further detection and experiment are facilitated.

Description

Technical Field

[0001] This invention relates to the field of tobacco machinery and equipment technology, specifically a compressed air cigarette blowing machine. Background Technology

[0002] In the cigarette production and testing process, some testing procedures require obtaining a certain weight of tobacco or a certain number of empty cigarette tubes from inside the cigarette. Traditionally, the industry has mostly used cigarette slitting machines to separate the tobacco; however, this method has many drawbacks. On the one hand, its processing efficiency is low, making it difficult to meet the needs of large-scale testing or production; on the other hand, the slitting process severely damages the morphology of the tobacco, making it unusable for some subsequent testing items that require specific morphology, and it also fails to preserve intact empty cigarette tubes, resulting in a waste of empty cigarette tube resources.

[0003] Furthermore, the development of cigarettes of different diameters in the tobacco industry is currently very rapid, especially the increasing market share of slim cigarettes. Consequently, the testing of these different diameter cigarettes and the formulation of relevant standards are increasing. Therefore, comprehensively testing and comparing the corresponding parameters of tobacco and tubes of different diameter cigarettes, such as tobacco filling density and tube wall thickness uniformity, has become particularly important. Thus, those skilled in the art have provided a compressed air cigarette blowing machine to solve the problems mentioned in the background section. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a compressed air cigarette blowing machine to solve the problems of low efficiency, damage to tobacco and cigarette tubes, and inability to adapt to cigarettes of different diameters in traditional tobacco separation methods. This equipment can meet the needs of separating tobacco and cigarette tubes of various specifications and different circumferences and lengths, automatically weighing the cigarettes and the blown tobacco, and automatically collecting the tobacco, empty cigarette tubes, and unblown cigarettes.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A compressed air cigarette blowing machine includes a casing, characterized in that: the casing has a three-layer structure, from top to bottom, consisting of an upper platform, a middle pull-out platform, and a lower pull-out platform; the upper platform is provided with a smoke inlet mechanism; the middle pull-out platform is provided with a receiving, weighing, blowing, and sorting mechanism; and the lower pull-out platform is provided with a classification and collection mechanism. The receiving, weighing, blowing, and sorting mechanism is located below the smoke inlet mechanism, and the classification and collection mechanism is located below the receiving, weighing, blowing, and sorting mechanism.

[0007] Detailed structure of the smoke inlet mechanism

[0008] The cigarette feeding mechanism is a key component for automatic cigarette feeding, and its structural design directly affects the stability and efficiency of the feeding process. This mechanism includes a hopper with a folding flap at the top. The flap is made of lightweight, wear-resistant plastic, which not only prevents external dust and impurities from entering the hopper and contaminating the cigarettes, but also allows for easy opening when adding cigarettes, while the folding design saves space. Inside the hopper, a partition divides the internal space into two parts: one side is a storage bin for storing cigarettes to be processed, and the other side is a discharge bin for the orderly dropping of cigarettes.

[0009] A sloping sliding plate is located in the center of the storage hopper. The inclination angle of the sliding plate is precisely calculated and set between 30° and 45°. This angle range ensures that the cigarettes slide smoothly under their own weight, while preventing collisions and damage due to excessive speed caused by an excessively large inclination angle, or jamming and preventing the cigarettes from sliding down due to an insufficient inclination angle. A lifting plate is located on one side of the lower end of the sliding plate. The lifting plate has a circular cigarette passage with a diameter slightly larger than the maximum diameter of common cigarettes, ensuring that cigarettes of different diameters can pass through smoothly. The lifting plate is close to the partition, and its sides are installed in slide rails on the inner wall of the hopper. The slide rails are high-precision linear slide rails, ensuring smooth and stable movement of the lifting plate during vertical movement, avoiding jamming or deviation.

[0010] The feeding bin is equipped with an arc-shaped feeding guide rail. The arc design of the guide rail conforms to the movement trajectory of the cigarette, smoothly guiding the cigarette falling from the cigarette outlet to a vertical position so that subsequent cigarettes can accurately fall into the guide tube. At the end of the arc-shaped feeding guide rail is a feeding port, the diameter of which matches the inner diameter of the guide tube, ensuring that the cigarette can smoothly enter the guide tube.

[0011] To achieve automatic lifting of the lifting plate, a lifting plate drive motor is installed on the bottom side of the sliding plate. The lifting plate drive motor is a stepper motor, characterized by high control precision and stable operation, enabling precise control of the lifting height and speed of the lifting plate. The lifting plate drive motor is connected to a rotating push rod, one end of which has a follower cam. The bottom end of the lifting plate rests on the follower cam. When the lifting plate drive motor operates, it drives the rotating push rod to rotate, which in turn drives the follower cam to rotate. The rotation of the follower cam pushes the lifting plate upwards or releases it to descend, thus achieving intermittent cigarette descent. This ensures that only one cigarette enters the feeding bin at a time, preventing cigarette blockage.

[0012] A discharge sensor, employing photoelectric sensing, is installed at the discharge port to detect in real time whether a cigarette is falling from the port. When a cigarette is detected, a signal is transmitted to the equipment's control system, which then coordinates the actions of subsequent mechanisms. Below the discharge port is a guide tube made of transparent acrylic material, allowing operators to easily observe the cigarette's descent. The length of the guide tube is determined by the overall structural design of the equipment to ensure that the cigarette accurately falls onto the guide arc surface of the gripper on the cigarette-holding moving platform below.

[0013] Detailed structure of the receiving, weighing, blowing, and sorting mechanism

[0014] The receiving, weighing, blowing, and sorting mechanism is the core component for receiving, weighing, blowing, and sorting cigarettes. It includes a liftable cigarette receiving bracket, a cigarette clamping and moving platform, an air blowing mechanism, a sorting and dropping platform, and a tobacco blowing duct.

[0015] The adjustable cigarette holder is fixed to the left side of the central pull-out platform in the middle of the chassis. Its main function is to catch cigarettes falling from the guide tube and perform preliminary weighing. This adjustable cigarette holder includes a lifting adjustment platform, an electromagnet, a weight sensor, and a catching bracket. The lifting adjustment platform uses a screw lifting structure; a motor drives the screw to rotate, achieving platform lifting accuracy down to millimeters. It can adjust the height of the catching bracket according to cigarettes of different lengths, ensuring that the cigarette falls accurately onto the catching bracket.

[0016] A high-precision strain gauge weight sensor, fixed to the lifting and adjusting platform, accurately measures the weight of the cigarette. A V-shaped receiving bracket, also fixed to the weight sensor, effectively positions the cigarette, preventing it from rolling during retrieval. An electromagnet, positioned above the weight sensor, controls the on / off flow of current to activate and deactivate the stop on the receiving bracket, thus limiting or releasing the cigarette.

[0017] The cigarette clamping and moving platform is fixed to the right side of the central pull-out platform and is used to clamp cigarettes and move them between different workstations. This platform includes cigarette gripping claws and a horizontal moving platform. The cigarette gripping claws are pneumatic, and their clamping force can be controlled by adjusting the air pressure. They can accommodate cigarettes of different diameters, and the clamping process is smooth and will not damage the cigarettes. The gripping surfaces of the claws are made of rubber, increasing the friction between the claws and the cigarettes and preventing them from slipping during clamping and movement.

[0018] The horizontal moving platform adopts a linear module, and its drive motor is a servo motor, which has the characteristics of high positioning accuracy and fast running speed. It can accurately control the moving position and speed of the cigarette gripper, ensuring that the cigarette can be accurately moved to the blowing position of the air blowing mechanism and above the corresponding dropping port of the sorting and dropping platform.

[0019] The air-blowing mechanism is located at the front of the central pull-out platform, above the cigarette-holding moving platform, and is used to blow the tobacco out of the cigarette. This mechanism includes an air-blowing nozzle and an air-blowing moving mechanism. The air-blowing nozzle is made of stainless steel, and its nozzle diameter can be changed according to the cigarette diameter to ensure effective blowing. The air inlet of the nozzle connects to an external air source. The compressed air supplied by the external air source is filtered, depressurized, and stabilized to ensure stable air pressure. The blowing pressure can be adjusted according to the tobacco filling density, generally within the range of 0.3-0.6 MPa.

[0020] The air-blowing moving mechanism also uses a linear module, with its moving end connected to the tube mounting base, on which the air-blowing nozzle is mounted. The air-blowing moving mechanism can drive the air-blowing nozzle to move up and down. When the cigarette moves to the blowing position, the air-blowing moving mechanism drives the air-blowing nozzle downward, bringing the nozzle closer to one end of the cigarette, and then begins to blow air, blowing the tobacco out from the other end of the cigarette. The tobacco falls into the tobacco collection box below through the tobacco blowing guide.

[0021] The sorting and unloading platform is fixed at the bottom of the central pull-out platform and guides emptied cigarette tubes and undone cigarettes to their respective collection boxes. This platform has two discharge openings: an outflow outlet and a non-outflow outlet. The outflow outlet is located near the lower part of the liftable cigarette receiving bracket, while the non-outflow outlet is located further away. The surface of the platform is made of smooth PTFE material, reducing friction between the cigarette tube and the cigarette during the descent and ensuring smooth sliding.

[0022] The tobacco blowing guide is fixed to the central pull-out platform directly below the air blowing mechanism. One end of the guide corresponds to the blowing position of the air blowing mechanism, and the other end extends to the tobacco collection box on the lower pull-out platform to guide the blown tobacco into the tobacco collection box. The inner wall of the tobacco blowing guide is polished to prevent tobacco residue from remaining inside the guide.

[0023] Detailed structure of the classification and collection organization

[0024] The sorting and collection mechanism is fixed to the lower pull-out platform and is used to collect emptied cigarette tubes, unemptied cigarettes, and tobacco separately. This mechanism includes a collection box for emptied cigarette tubes, a collection box for unemptied cigarettes, and a collection box for tobacco. All three collection boxes have a drawer-type structure for easy removal and cleaning by staff. The collection boxes are made of plastic, and their volume is determined based on the equipment's processing efficiency and work cycle to ensure that they can meet collection needs for a certain period.

[0025] The opening of the blown-out tobacco tube collection box faces the upper blown-out discharge port, used to collect tobacco tubes that have been emptied after air blowing. The unblown tobacco collection box faces the upper unblown discharge port, used to collect tobacco sticks that have not been completely blown out or whose blowing process was not completed for other reasons. The tobacco collection box faces the upper tobacco blowing guide, used to collect tobacco blown out of the tobacco sticks. Each collection box is labeled for easy identification by staff.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. This invention uses automatic grippers to automatically adapt to cigarettes of various diameters and greatly speeds up the processing of cigarettes of the same specifications.

[0028] 2. This invention achieves fully automatic tobacco blowing by setting up an automatic feeding mechanism, an automatic receiving, weighing and sorting mechanism and a blowing mechanism, which minimizes damage to empty tobacco tubes and tobacco, greatly improves the recycling rate of empty tobacco tubes and tobacco, and facilitates further testing and experimentation.

[0029] 3. The equipment achieves a fully automated process of cigarette feeding, intermittent dropping, receiving and weighing, clamping and moving, tobacco blowing, tobacco tube sorting, and classified collection, requiring no manual intervention, greatly reducing labor intensity and improving work efficiency. Compared with traditional manual tobacco removal or slitting machine methods, the time to process the same number of cigarettes is reduced by more than 50%.

[0030] 4. The use of compressed air blowing avoids the damage to the shape of tobacco shreds and the tobacco tube caused by traditional slitting machines, preserving intact empty tobacco tubes and well-shaped tobacco shreds. The integrity rate of empty tobacco tubes can reach over 99%, and the integrity of the tobacco shreds meets the requirements for subsequent testing, improving the recycling rate of tobacco shreds and tobacco tubes, and providing excellent conditions for subsequent tobacco shred testing and empty tobacco tube reuse.

[0031] 5. Equipped with a high-precision weight sensor, it can perform initial weighing (total weight) of the cigarette and secondary weighing of the cigarette tube. The weight difference is used to accurately calculate the weight of the tobacco, providing accurate weight data for tobacco detection and facilitating more precise control of the cigarette blowing process by staff. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a compressed air cigarette blower.

[0033] Figure 2 A cross-sectional schematic diagram of the smoke inlet mechanism in a compressed air cigarette blower;

[0034] Figure 3 A schematic diagram of the discharge end of the smoke inlet mechanism in a compressed air cigarette blower;

[0035] Figure 4 A three-dimensional structural diagram of the other side of the material receiving, weighing, blowing, and sorting mechanism in a compressed air cigarette blowing machine; Figure 5 A three-dimensional structural diagram of one side of the tobacco blowing and sorting mechanism in a compressed air cigarette blowing machine.

[0036] In the diagram: 1. Chassis; 2. Upper platform; 3. Smoke inlet mechanism; 301. Folding cover; 302. Partition; 303. Storage bin; 304. Discharge bin; 305. Inclined sliding plate; 306. Lifting plate; 307. Smoke outlet; 308. Slide rail; 309. Arc-shaped discharge guide rail; 310. Discharge port; 311. Lifting plate drive motor; 312. Rotary push rod; 313. Follow-up cam; 314. Discharge sensor; 315. Guide tube; 4. Intermediate pull-out platform; 5. Receiving, weighing, blowing, and sorting mechanism; 501. 5011. Lifting and lowering cigarette holder; 5012. Lifting and adjusting platform; 5013. Electromagnet; 5014. Weight sensor; 5015. Holding bracket; 502. Cigarette clamping and moving platform; 5021. Cigarette clamping claw; 5022. Horizontal moving platform; 503. Air blowing mechanism; 5031. Air blowing nozzle; 5032. Air blowing moving mechanism; 5033. Pipe mounting base; 5034. Air inlet; 504. Sorting and dropping platform; 505. Tobacco blowing guide tube; 6. Lower pull-out platform; 7. Classification and collection mechanism. Detailed Implementation

[0037] In the embodiments of this invention, please refer to Figure 1 , Figure 2 and Figure 4As shown, a compressed air cigarette blowing machine includes a casing 1 made of stainless steel, which has good strength and corrosion resistance. Its dimensions are determined according to the layout of the various mechanisms, approximately 800mm × 600mm × 1000mm (length × width × height). The casing 1 has a three-layer structure: the upper layer is an upper platform 2, which is bolted to a bracket on the inner wall of the casing 1 and houses a smoke inlet mechanism 3; the middle layer is a middle pull-out platform 4, which slides along a guide rail on the inner wall of the casing 1, allowing for easy pulling out or pushing in, and houses a receiving, weighing, blowing, and sorting mechanism 5; the lower layer is also a lower pull-out platform 6, with the same structure as the middle pull-out platform 4, and houses a classification and collection mechanism 7. The receiving, weighing, blowing, and sorting mechanism 5 is located below the smoke inlet mechanism 3, and the classification and collection mechanism 7 is located below the receiving, weighing, blowing, and sorting mechanism 5. The positional relationship between these mechanisms ensures the smooth transfer and collection of cigarettes, tobacco, and tobacco tubes.

[0038] like Figure 2 As shown, the hopper of the cigarette feeding mechanism 3 is injection molded from plastic. The folding flap 301 is connected to the hopper via a hinge. When the flap is closed, a sealing strip is provided between the flap and the hopper to improve sealing. The partition 302 is integrally molded with the hopper, dividing the hopper into a storage bin 303 and a discharge bin 304. The storage bin 303 can hold approximately 200 cigarettes. The inclined sliding plate 305 has an inclination angle of 35° and a polished surface to reduce the resistance of the cigarettes sliding down. The lifting plate 306 is 10mm thick, and the diameter of the cigarette outlet 307 is 10mm, which can accommodate cigarettes of different common diameters. The slide rail 308 uses a linear slide rail of model SBR16 to ensure smooth movement of the lifting plate 306. The arc-shaped discharge guide rail 309 has a radius of 50mm and is made of plastic with a smooth surface. The discharge outlet 310 has a diameter of 8mm, which matches the inner diameter of the guide tube 315. The lifting plate drive motor 311 is a stepper motor of model 42BYG250. The rotary push rod 312 is 100mm long, and the follower cam 313 has a base circle radius of 15mm and a lift of 20mm. The discharge sensor 314 is a photoelectric sensor of model E3Z-LS63 with a detection distance of 5-100mm. The guide tube 315 is made of transparent acrylic material, with an inner diameter of 8mm and a length of 300mm.

[0039] like Figure 2 , Figure 3 and Figure 4As shown, in the lifting and lowering cigarette receiving bracket 501 of the receiving, weighing, and blowing tobacco sorting mechanism 5, the lifting adjustment platform 5011 adopts a KGG40 screw lifting module with a lifting range of 0-100mm. The electromagnet 5012 is a DC electromagnet of model MFZ12-27. The weight sensor 5013 is a strain gauge weight sensor of model H3-C3. The receiving bracket 5014 has a V-shaped structure with an opening angle of 60° and is made of stainless steel.

[0040] The cigarette gripping platform 502 uses MHC2-10D pneumatic grippers 5021 for its cigarette gripping mechanism. The gripping range is 0-10mm, and the gripping force can be adjusted between 0.1-0.5MPa by regulating the air pressure. The horizontal moving platform 5022 uses a KK8610P linear module with an effective stroke of 300mm. The drive motor is a 130 servo motor with a rated speed of 3000rpm.

[0041] The air-blowing mechanism 503 features an air-blowing nozzle 5031 made of stainless steel. The nozzle is equipped with a detachable nozzle head, allowing for replacement with nozzles of different inner diameters depending on the cigarette diameter, such as 3mm, 4mm, and 5mm. The air-blowing moving mechanism 5032 uses a KK4002P linear module with an effective stroke of 50mm. The pipe mounting base 5033 is made of aluminum alloy and is bolted to the moving end of the air-blowing moving mechanism 5032. The air inlet 5034 connects to an external air source—an air compressor. The supplied compressed air is processed through an AC2010 three-unit filter, pressure reducing valve, and lubricator to ensure a stable air pressure of 0.4MPa.

[0042] The sorting and feeding platform 504 is made of polytetrafluoroethylene (PTFE) with a thickness of 5mm. Both the blowing and non-blowing feeding ports are 15mm x 15mm in size, and the distance between the two feeding ports is 100mm. The tobacco blowing guide tube 505 is made of stainless steel with an inner diameter of 8mm and a length of 200mm. One end is fixed to the middle pull-out platform 4 by a bracket, and the other end extends to the top of the lower pull-out platform 6.

[0043] The sorting and collection mechanism 7 includes a blown-out pipe collection box, an unblown cigarette collection box, and a tobacco collection box. All three boxes are horizontally mounted on the lower pull-out platform 6, employing a drawer-type pull-out structure. The opening of the blown-out pipe collection box faces the upper blown-out discharge port, the unblown cigarette collection box faces the upper unblown discharge port, and the tobacco collection box faces the upper tobacco blow-out guide tube. All three collection boxes in the sorting and collection mechanism 7 are made of plastic and have dimensions of 200mm × 150mm × 100mm. Each collection box can hold approximately 100 pipes or cigarettes, and the tobacco collection box can hold approximately 50g of tobacco. The drawer-type structure of the collection boxes is equipped with handles for easy removal and cleaning by staff.

[0044] In this embodiment, the equipment's control system uses a PLCS7-200SMART programmable logic controller and is equipped with a 10-inch touchscreen. Operators can use the touchscreen to set operating parameters such as cigarette diameter, blowing pressure, and weighing accuracy, and monitor the equipment's operating status, weighing data, and the fullness of the collection box in real time. When the cigarette tube, cigarette, or tobacco in the collection box reaches a preset fullness threshold, the touchscreen will issue an alarm to remind operators to clean it promptly.

[0045] In actual operation, the compressed air cigarette blower of this embodiment follows the same workflow as described above, stably and efficiently separating, weighing, and classifying tobacco from cigarette tubes of different diameters. Testing shows that the device processes a single cigarette in approximately 5 seconds, can process about 720 cigarettes per hour, achieves a tobacco blowing rate of over 98%, a cigarette tube integrity rate of over 99%, and a weighing error of less than 0.002g, fully meeting the tobacco industry's needs for tobacco inspection and empty cigarette tube recycling.

[0046] The working principle of this invention is as follows: the operator opens the folding cover 301 of the smoke inlet mechanism 3, puts the cigarette to be processed into the storage bin 303, and the cigarette slides down the inclined sliding plate 305 under its own gravity and enters the smoke passage 307 of the lifting plate 306.

[0047] The lifting plate drive motor 311 starts working, driving the rotating push rod 312 and the follower cam 313 to rotate. The follower cam 313 pushes the lifting plate 306 upward along the slide rail 308. When the lifting plate 306 rises to its highest point, the cigarette in the smoke outlet 307 exceeds the height of the arc-shaped material discharge guide rail 309. Under the action of gravity, the cigarette slides down along the arc-shaped material discharge guide rail 309, gradually becoming vertical, and finally falls from the discharge port 310. After the discharge sensor 314 detects the cigarette falling, it transmits a signal to the control system. The control system controls the lifting plate drive motor 311 to continue rotating, and the follower cam 313 releases the lifting plate 306. The lifting plate 306 descends and resets, waiting for the next cigarette to enter the smoke outlet 307, realizing the intermittent falling of the cigarette.

[0048] Cigarettes falling from the discharge port 310 pass through the guide tube 315 and, under gravity, land on the guide arc surface of the gripper 5021 of the cigarette clamping moving platform 502. At this time, the gripper 5021 is in the open state, with the opening slightly larger than the diameter of the cigarette. The cigarette falls along the gripper 5021 onto the receiving bracket 5014 of the lower liftable cigarette receiving bracket 501. The weight sensor 5013 below the receiving bracket 5014 begins to weigh the cigarette and transmits the weighing data to the control system, completing the initial weighing of the cigarette and recording the total weight of the cigarette.

[0049] After the initial weighing is completed, the control system controls the gripper 5021 of the cigarette clamping moving platform 502 to close, clamping the cigarette tightly. Simultaneously, the electromagnet 5012 on the lifting cigarette lowering receiving bracket 501 is energized and engaged, retracting the stop block inside the receiving bracket 5014 used to fix the cigarette. Subsequently, driven by a servo motor, the horizontal moving platform 5022 moves the gripper 5021 and the cigarette towards the air blowing mechanism 503, positioning the cigarette directly below the air blowing nozzle 5031.

[0050] Once the cigarette reaches the air-blowing position, the air-blowing moving mechanism 5032 moves the air-blowing nozzle 5031 downwards along the pipe mounting base 5033, bringing the nozzle of the air-blowing nozzle 5031 closer to one end of the cigarette. Then, an external air source supplies compressed air to the air-blowing nozzle 5031 through the air inlet 5034. The compressed air is ejected from the nozzle and enters the inside of the cigarette, blowing the tobacco out from the other end. The blown-out tobacco passes through the tobacco blowing guide 505 and falls into the tobacco collection box on the lower pull-out platform 6.

[0051] After the tobacco is blown out, the air-blowing moving mechanism 5032 moves the air-blowing nozzle 5031 upward to reset. The cigarette clamping moving platform 502 moves the gripper 5021 and the cigarette tube, now empty, towards the lifting cigarette lowering receiving bracket 501, returning to the receiving bracket 5014. The control system controls the gripper 5021 to open, and the cigarette tube falls onto the receiving bracket 5014. Simultaneously, the electromagnet 5012 is de-energized, the stop block pops out, limiting the movement of the cigarette tube. The weight sensor 5013 weighs the cigarette tube again, records the weight, and transmits the data to the control system. The control system compares the weight of the cigarette tube with the initial total weight of the cigarette to calculate the weight of the tobacco. If the difference between the weight of the tobacco tube and the total weight of the cigarette is within a preset reasonable range, meaning the tobacco has been largely blown out, the control system controls the gripper 5021 to clamp the tobacco tube again. The horizontal moving platform 5022 moves the tobacco tube towards the blowout discharge port. Once in position, the gripper 5021 opens, and the tobacco tube falls into the blowout discharge port, sliding into the blowout tobacco tube collection box via the sorting discharge platform 504. If the difference between the weight of the tobacco tube and the total weight of the cigarette is too small, meaning the tobacco has not been completely blown out, the control system controls the horizontal moving platform 5022 to move the tobacco tube towards the unblown discharge port. After the gripper 5021 opens, the tobacco tube falls into the unblown discharge port and slides into the unblown cigarette collection box.

[0052] Cyclic operation: After processing one cigarette, the equipment automatically repeats the above steps to process the next cigarette, achieving continuous automated operation. When the amount of cigarette tubes, cigarettes, or tobacco in the collection box reaches a certain level, the operator can pull out the lower pull-out platform 6, remove the corresponding collection box, clean the internal cigarette tubes, cigarettes, or tobacco, and then put the collection box back in its original position. The lower pull-out platform 6 resets, and the equipment continues to work.

[0053] The compressed air cigarette blowing machine of this invention can blow tobacco and measure its weight for cigarettes of different diameters. It can achieve quantitative blowing of tobacco weight and quantitative blowing of cigarettes, greatly reducing the labor intensity of manual screening and tobacco removal, improving efficiency, increasing the stability of detection, and ensuring the stability of empty cigarette tubes and tobacco recycling. The whole machine of this invention is small in size and can be moved and used as needed, reducing space usage restrictions.

[0054] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A compressed air cigarette blowing machine, comprising a casing (1), characterized in that: The chassis (1) has a three-layer structure inside, which consists of an upper platform (2), a middle pull-out platform (4) and a lower pull-out platform (6) from top to bottom. The upper platform (2) is equipped with a smoke inlet mechanism (3), the middle pull-out platform (4) is equipped with a material receiving, weighing, blowing and sorting mechanism (5), and the lower pull-out platform (6) is equipped with a classification and collection mechanism (7). The material receiving, weighing and blowing and sorting mechanism (5) is located below the smoke inlet mechanism (3), and the classification and collection mechanism (7) is located below the material receiving, weighing and blowing and sorting mechanism (5).

2. The compressed air cigarette blowing machine according to claim 1, characterized in that, The smoke inlet mechanism (3) includes a hopper with a folding cover (301) at the top opening. A partition (302) is provided inside the hopper. One side of the partition (302) is a storage bin (303), and the other side is a discharge bin (304). A sloping sliding plate (305) is provided in the middle of the storage bin (303), and a lifting plate (306) is provided on one side of the lower end of the sliding plate (305). A smoke outlet (307) is provided on the lifting plate (306). The lifting plate (306) is close to the partition (302), and both sides of the lifting plate (306) are installed in the slide rails (308) provided on the inner wall of the hopper. An arc-shaped discharge guide rail (309) is provided in the discharge bin (304), and a discharge port (310) is provided at the end of the arc-shaped discharge guide rail (309).

3. A compressed air cigarette blowing machine according to claim 2, characterized in that, The bottom side of the sliding plate (305) is provided with a lifting plate drive motor (311), which is connected to a rotating push rod (312). One end of the rotating push rod (312) is provided with a follower cam (313), and the bottom end of the lifting plate (306) is placed on the follower cam (313). Under the drive of the lifting plate drive motor (311), the rotating push rod (312) rotates and pushes the lifting plate (306) up or releases the lifting plate (306) down through the follower cam (313).

4. A compressed air cigarette blowing machine according to claim 2, characterized in that, A discharge sensor (314) is provided at the discharge port (310), and a guide tube (315) is provided below the discharge port (310).

5. A compressed air cigarette blowing machine according to claim 1, characterized in that, The receiving, weighing, blowing, and sorting mechanism (5) includes a liftable cigarette receiving bracket (501), a cigarette clamping moving platform (502), an air blowing mechanism (503), a sorting and dropping platform (504), and a tobacco blowing guide (505). The liftable cigarette receiving bracket (501) is fixed on the left side of the middle pull-out platform (4) in the middle of the machine box (1). The cigarette clamping moving platform (502) is fixed on the right side of the middle pull-out platform (4). The air blowing mechanism (503) is located at the front of the middle pull-out platform (4) above the cigarette clamping moving platform (502). The sorting and dropping platform (504) is fixed at the bottom of the middle pull-out platform (4). The tobacco blowing guide (505) is fixed on the middle pull-out platform (4) directly below the air blowing mechanism (503).

6. A compressed air cigarette blowing machine according to claim 5, characterized in that, The liftable cigarette holder (501) includes a lifting adjustment platform (5011), an electromagnet (5012), a weight sensor (5013), and a receiving bracket (5014). The receiving bracket (5014) is fixed on the weight sensor (5013), the weight sensor (5013) is fixed on the lifting adjustment platform (5011), the electromagnet (5012) is fixed on the lifting adjustment platform (5011) and located above the weight sensor (5013), and the lifting adjustment platform (5011) is fixed on the left side of the middle pull-out platform (4).

7. A compressed air cigarette blowing machine according to claim 5, characterized in that, The cigarette holding moving platform (502) includes a cigarette gripper (5021) and a horizontal moving platform (5022). The cigarette gripper (5021) is fixed on the horizontal moving platform (5022), and the horizontal moving platform (5022) is fixed on the right side of the middle pull-out platform (4).

8. A compressed air cigarette blowing machine according to claim 5, characterized in that: The air blowing mechanism (503) includes an air blowing nozzle (5031) and an air blowing moving mechanism (5032). The moving end of the air blowing moving mechanism (5032) is connected to the tube body mounting base (5033). The air blowing nozzle (5031) is mounted on the tube body mounting base (5033). The blowing end of the air blowing nozzle (5031) is directly facing the hole of the tobacco blowing guide tube (505). The air inlet end (5034) is connected to an external air source.

9. A compressed air cigarette blowing machine according to claim 5, characterized in that: The sorting and unloading platform (504) has two unloading openings, namely a blow-out unloading opening and a non-blow-out unloading opening. The blow-out unloading opening is located near the lower part of the liftable cigarette holder (501), and the non-blow-out unloading opening is located far from the lower part of the liftable cigarette holder (501).

10. A compressed air cigarette blowing machine according to claim 1, characterized in that: The sorting and collecting mechanism (7) includes a blown-out cigarette collection box, a non-blown-out cigarette collection box, and a tobacco collection box. The blown-out cigarette collection box, the non-blown-out cigarette collection box, and the tobacco collection box are all fixed horizontally and vertically on the lower pull-out platform (6). The opening of the blown-out cigarette collection box faces the upper blown-out discharge port, the non-blown-out cigarette collection box faces the upper non-blown-out discharge port, and the tobacco collection box faces the upper tobacco blowing guide tube (505).

Images