A device for preventing tobacco stems from slipping on a copper chain of a cutter

Abstract

The utility model relates to the field of tobacco processing technology, concretely is a device for preventing tobacco stem from slipping on the copper chain of the cutting machine. The device includes fixed plate, connecting plate, poking roll, casing, rotary drum and blow head assembly. Through setting rotary blow head in the feeding path, the surface of tobacco stem is handled with blowing and dehumidification by compressed air, quickly evaporates and condenses water vapor, reduces surface moisture, and at the same time, cooperates with poking roll to make tobacco stem tumble and loosen, improves the dehumidification effect. The structure can effectively enhance the friction between tobacco stem and copper chain, avoid the slipping phenomenon, ensure the continuous and stable feeding of the cutting machine, improve the cutting efficiency and product consistency.

Description

Technical Field

[0001] This utility model relates to the technical field of tobacco processing equipment, specifically to a device for preventing tobacco stems from slipping on the copper chain of a shredder. Background Technology

[0002] In the cigarette production process, tobacco stems, as an important filling material for tobacco shreds, have a crucial impact on the filling density, smoking smoothness, and product consistency of cigarettes due to their processing state. To improve the processing adaptability of tobacco stems and the quality of the final product, existing tobacco processing processes typically include the following steps in sequence: expansion, rehydration, stem pressing, and shredding.

[0003] The tobacco stems are first subjected to a high-temperature expansion treatment, which loosens their structure, increases their volume, and improves their flexibility. Then, they enter a rehumidification device, where they further absorb moisture under controlled temperature and humidity conditions, enhancing their softness. Next, they enter a stem pressing device, where pressure rollers adjust their thickness, density, and structural stability. Some processes also include a stem pressing and wetting unit, which further improves the processing performance of the stems by spraying a small amount of water mist or steam.

[0004] After the above processing, the tobacco stems are conveyed by a feeding mechanism to a shredder for cutting. To achieve a stable and consistent feeding effect, a copper busbar chain structure is often installed downstream of the feeding mechanism to accurately feed the tobacco stem sheets into the shredder. The copper busbar chain has advantages such as synchronous transmission and robust structure, and is one of the most widely used conveying methods currently.

[0005] However, in actual production, it was found that during the copper chain conveying stage between the feeding mechanism and the shredder, the tobacco stems are prone to relative slippage, or "slippage," because the copper chain is composed of a series of flat and rigid metal links. This problem is particularly prominent at the joints of the links. When the tobacco stems slip, accumulate, or get stuck, it interferes with the normal material movement, disrupts the continuity and rhythm of the feeding, and leads to unstable feeding of the shredder, thus affecting the shredding accuracy and product consistency. The main reason for this phenomenon is that the tobacco stems after pressing are in a sheet-like, flexible structure, and often have some residual moisture on the surface. Multiple tobacco stem sheets are prone to stacking and sticking together during the copper chain conveying process, causing the material to fail to move forward synchronously and evenly with the chain links, resulting in problems such as slippage lag and misalignment. Ultimately, this causes disorder in the feeding rhythm, affecting the continuity and stability of the subsequent shredding process.

[0006] These issues directly affect the consistency of the tobacco cutting process, causing fluctuations in the thickness and width of the cut tobacco, which in turn affects the filling density and combustion uniformity of the subsequent rolling process, thereby reducing product quality and consumer experience, and also increasing the risk of equipment malfunction.

[0007] This application is submitted to address the above issues. Utility Model Content

[0008] In order to solve the above-mentioned problems, this utility model designs a device to prevent tobacco stems from slipping on the copper chain of a shredder.

[0009] The technical solution adopted in this utility model is as follows:

[0010] A device is provided for preventing tobacco stems from slipping on the copper busbar chain of a shredder. The device includes a pair of opposing fixing plates 1.

[0011] A connecting plate 2 is fixedly installed in the middle of the bottom wall of each of the fixed plates 1; a motor 3 is installed on the right side wall of the right connecting plate 2; a round rod 5 is rotatably connected to the inner side wall of each of the connecting plates 2 through a bearing 4; a feeding roller 6 is installed between two round rods 5; the right end of the round rod 5 on the right connecting plate 2 is fixedly connected to the output end of the motor 3 through a coupling, for driving the feeding roller 6 to rotate;

[0012] A housing 7 is installed on the left side wall of the fixed plate 1 on the left side, and an air inlet pipe 8 is connected to the top wall of the housing 7; the front and rear ends of the right inner wall of the fixed plate 1 on the left side are respectively rotatably connected to a rotating rod 10 through a bearing 9, and the right end of the rotating rod 10 extends between the pair of fixed plates 1.

[0013] A housing 11 is installed on the right side wall of the right-side fixed plate 1, and a motor 12 is installed on the right side wall of the housing 11. The front and rear ends of the left inner wall of the right-side housing 11 are respectively rotatably connected to the connecting rod 14 through the bearing 13. The right end of the rear connecting rod 14 is fixedly connected to the output end of the motor 12 through a coupling. A pulley 15 is fixedly installed on the outer peripheral wall of the connecting rod 14, and a belt 16 is connected between the two pulleys 15. The left end of the connecting rod 14 extends between a pair of fixed plates 1. A rotating cylinder 17 is coaxially sleeved between the rotating rod 10 and the connecting rod 14. Multiple downward-opening blow nozzles 18 are provided on the bottom wall of the rotating cylinder 17.

[0014] Preferably, the feeding roller 6 is disposed between the front and rear rotating drums 17.

[0015] Preferably, the outer ring of the bearing 13 is fixedly connected to the inner wall of the housing 11 through the bearing seat, and the inner ring of the bearing 13 is interference-fitted to the outer wall of the connecting rod 14.

[0016] Preferably, the air inlet pipe 8, housing 7, rotating rod 10, rotating cylinder 17 and the blower 18 disposed thereon form a connected gas channel.

[0017] Preferably, a plurality of the blow nozzles 18 are spaced apart along the axial direction of the rotating cylinder 17 on its outer wall.

[0018] The advantages of this utility model over the prior art are as follows:

[0019] This device removes moisture from tobacco stems by installing a blower inside the feeder. Compressed air enters the rotating drum through the air inlet pipe and is then blown downwards by the blower. This quickly blows away and evaporates the moisture condensed on the surface of the tobacco stems, reducing the surface moisture and increasing the friction between the tobacco stems and the copper chain. This effectively reduces slippage, ensures the continuity and stability of the feeding of the shredder, and avoids intermittent feeding.

[0020] The second motor drives the connecting rod, pulley, drum, and blower to rotate. The second motor can be started in both forward and reverse directions, which can make the drum drive the blower to swing back and forth. The blower swings downward at a certain angle, and the compressed air blown out can cover a larger area of ​​material below. This design ensures that all parts of the tobacco stem can fully contact the compressed air and evaporate the surface moisture more comprehensively. Compared with the traditional blowing method in a single direction or fixed position, the moisture removal effect is more significant.

[0021] After the first set of blowing nozzles completes the initial removal of moisture, a material-tumbling and stirring operation is performed by a feeding roller. Once the motor starts, the drive rod rotates the feeding roller, turning the material over so that different parts are sequentially exposed under the second set of blowing nozzles for further moisture removal. This design not only effectively avoids the problem of incomplete moisture removal in certain areas and improves the uniformity of moisture treatment on the tobacco stem surface, but also improves the looseness of the material by breaking up stacked and adhered tobacco sheets. This facilitates the uniform conveying and stable processing of materials in subsequent stages, thereby improving overall processing efficiency and quality. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the rotating rod structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the box of this utility model.

[0026] Figure label:

[0027] 1. Fixed plate, 2. Connecting plate, 3. Motor 1, 4. Bearing 1, 5. Round rod, 6. Feeding roller, 7. Housing, 8. Air inlet pipe, 9. Bearing 2, 10. Rotating rod, 11. Box body, 12. Motor 2, 13. Bearing 3, 14. Connecting rod, 15. Pulley, 16. Belt, 17. Rotating drum, 18. Blowing head. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] See Figure 1-3 As shown, a device for preventing tobacco stems from slipping on the copper busbar chain of a shredder includes a fixed plate 1, a connecting plate 2 provided in the middle of the bottom wall of the fixed plate 1, a motor 3 provided on the right side wall of the right connecting plate 2, a round rod 5 rotatably connected to the inner side wall between the connecting plates 2 via a bearing 4, a feeding roller 6 provided on the inner end wall between the round rods 5, and the right end of the round rod 5 on the right connecting plate 2 is fixedly connected to the output end of the motor 3 via a coupling to drive the feeding roller 6 to rotate.

[0031] A housing 7 is provided on the left side wall of the left fixed plate 1, and an air inlet pipe 8 is provided on the top wall of the housing 7. The front and rear ends of the right inner wall of the fixed plate 1 are rotatably connected to the rotating rod 10 through the bearing 2 9, and the right end of the rotating rod 10 extends to the space between the fixed plates 1.

[0032] A housing 11 is provided on the right side wall of the right fixed plate 1. A motor 12 is provided on the right side wall of the housing 11. A connecting rod 14 is rotatably connected to the front and rear ends of the left inner wall of the housing 11 through a bearing 13. The right end of the rear connecting rod 14 is fixedly connected to the output end of the motor 12 through a coupling. A pulley 15 is interference-fitted to the outer wall of the connecting rod 14. A belt 16 is fitted to the outer walls of the two pulleys 15. The left end of the connecting rod 14 extends to the space between the fixed plates 1. A rotating cylinder 17 is provided between the rotating rod 10 and the inner end of the connecting rod 14. Multiple blow nozzles 18 are provided on the bottom wall of the rotating cylinder 17.

[0033] Furthermore, the feeding roller 6 is placed between the front and rear rotating drums 17. After the material has been dehumidified by the first set of blowing heads 18, it is conveyed to the feeding roller 6 by the feeder. After the motor 3 is started, the round rod 5 drives the feeding roller 6 to rotate. The rotation of the feeding roller 6 performs a tumbling and stirring operation on the material.

[0034] Furthermore, the outer ring of bearing 13 is fixedly connected to the inner wall of housing 11 through bearing seat, and the inner ring of bearing 13 is interference-fitted with the outer wall of connecting rod 14. Bearing 13 fixes the connecting rod 14, facilitating the rotation of connecting rod 14 through bearing 13.

[0035] Furthermore, the housing 7, air inlet pipe 8, rotating rod 10, rotating drum 17 and blowing head 18 are connected to each other. Compressed air is delivered into the housing 7 through the air inlet pipe 8, enters the rotating drum 17 through the rotating rod 10, and is blown downward through the blowing head 18. The compressed air blown out through the blowing head 18 causes the water vapor condensed on the surface of the material to evaporate rapidly and the temperature to decrease.

[0036] Furthermore, multiple blowing heads 18 are arranged from left to right on the outer wall of the rotating drum 17. After the material is dehydrated by the first set of blowing heads 18, it is conveyed to the feeding roller 6 by the feeder. After the motor 3 is started, the round rod 5 drives the feeding roller 6 to rotate. The rotation of the feeding roller 6 tumbles and stirs the material. The flipped material is conveyed to the bottom of the second set of blowing heads 18, and the second set of blowing heads 18 dehydrates the flipped material.

[0037] For those skilled in the art, all electrical components and parts in this case are general standard parts or parts known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. All models are compatible with this solution and can operate normally. All electrical components in this case are connected to their compatible power supplies through wires. According to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence should refer to the working principle below, and the electrical connection is completed by the sequential operation of each electrical component. The detailed connection method is a well-known technology in the art, and the electrical control will not be described further.

[0038] One specific application of this embodiment is:

[0039] When using this utility model device, it is necessary to strictly follow the prescribed installation procedures and operating specifications to ensure that the various components of the device operate stably and cooperate in a coordinated manner, so as to give full play to its expected functions.

[0040] The first step is the installation of the device. This device is securely installed on the outer walls of both sides of the feeder's discharge end by welding the fixing plate 1 and the connecting plate 2, thus achieving structural integration with the feeder body. To enable the installation and interconnection of key internal components, several mounting holes are pre-drilled on the outer walls of both sides of the feeder. These holes are used to install the rotating rod 10, connecting rod 14, and round rod 5, allowing the rotating drum 17, blowing head 18, and feeding roller 6 to be precisely positioned on the internal conveying path of the feeder. This installation method takes into account both structural compatibility and functional adaptability between this device and existing feeder equipment, effectively embedding this device without affecting the original conveying function of the feeder, and realizing further processing preparation of tobacco stem materials.

[0041] Secondly, the operation process of the device. After the device is installed and ready for use, compressed air is stably introduced into the housing 7 through the air inlet pipe 8. The compressed air is guided into the rotating rod 10 through the inner cavity of the housing, and then into the rotating drum 17. Finally, it is blown out evenly from multiple blow nozzles 18 arranged below the rotating drum 17 to achieve airflow treatment on the surface of the material.

[0042] To improve the effective range and moisture removal efficiency of the blower head 18, the device is equipped with a second motor 12. Upon startup, the motor drives the pulley 15 to rotate via the connecting rod 14, which in turn drives the rotating drum 17 and the blower head 18 to rotate as a whole. The two pulleys 15 are synchronously connected by a belt 16 to achieve coordinated transmission. Under the control of the second motor 12, the rotating drum 17 can alternately rotate forward and backward, thereby driving the blower head 18 to reciprocate and oscillate. This allows compressed air to form a wider coverage area along the oscillation angle of the blower head 18, ensuring that the material inside the feeder is evenly blown at different positions. This structural design further improves the spatial efficiency and comprehensiveness of airflow processing.

[0043] The compressed air blown out by the blower 18 has a high flow rate, which can quickly break down the adhering structure of water vapor on the surface of the material, causing it to desorb and be discharged with the airflow, thereby reducing the surface humidity of the material. At the same time, since the cold air has a certain cooling effect on the material, it also helps to stabilize the material temperature, providing suitable conditions for subsequent processing. After the airflow treatment of the first set of blowers 18 is completed, the material enters the area where the feeding roller 6 is located under the continuous conveying action of the feeder.

[0044] At this point, motor 3 is started to provide power to the feeding roller 6. Motor 3 drives the round rod 5 to rotate, which in turn drives the feeding roller 6 to rotate along the horizontal axis, realizing the tumbling and stirring of the material. Under the action of the feeding roller 6, the surface and interior of the material are flipped over, allowing the parts that were not fully exposed to face upwards and have the opportunity to be blown by the airflow again. At the same time, the stacking and adhesion between materials are broken, improving their looseness and uniformity.

[0045] The material that has been flipped is then conveyed to the area below the second set of blowers 18, where it is blown by airflow again to further remove residual moisture and ensure the thoroughness and uniformity of the overall treatment effect.

[0046] Finally, after a series of efficient and coordinated processing steps by this device, the material successfully completes the dehumidification process and is conveyed to the copper busbar of the shredder, providing tobacco stem raw materials with suitable moisture content and good physical condition for the subsequent shredding process, thereby effectively ensuring the continuity of the cigarette production process and the stability of product quality.

[0047] Of course, the above description is not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, alterations, additions or substitutions made by those skilled in the art within the scope of the present utility model should be protected by the present utility model.

Claims

1. A device for preventing tobacco stems from slipping on the copper chain of a shredder, characterized in that, The device includes a pair of opposing fixed plates (1), A connecting plate (2) is fixedly installed in the middle of the bottom wall of each of the fixed plates (1); a motor (3) is installed on the right side wall of the right connecting plate (2); a round rod (5) is rotatably connected to the inner side wall of each of the connecting plates (2) through a bearing (4); a feeding roller (6) is installed between two round rods (5); the right end of the round rod (5) on the right connecting plate (2) is fixedly connected to the output end of the motor (3) through a coupling, for driving the feeding roller (6) to rotate; A housing (7) is installed on the left side wall of the fixed plate (1) on the left side, and an air inlet pipe (8) is connected to the top wall of the housing (7); the front and rear ends of the right inner wall of the fixed plate (1) on the left side are respectively rotatably connected to a rotating rod (10) through a bearing (9), and the right end of the rotating rod (10) extends to the space between the two fixed plates (1). A housing (11) is installed on the right side wall of the right-side fixed plate (1), and a motor (12) is installed on the right side wall of the housing (11); the front and rear ends of the left inner wall of the right-side housing (11) are respectively rotatably connected to a connecting rod (14) via a bearing (13); the right end of the rear connecting rod (14) is fixedly connected to the output end of the motor (12) via a coupling; a pulley (15) is fixedly installed on the outer peripheral wall of the connecting rod (14), and a belt (16) is connected between the two pulleys (15); the left end of the connecting rod (14) extends between a pair of fixed plates (1), and a rotating cylinder (17) is coaxially sleeved between the rotating rod (10) and the connecting rod (14); a plurality of downward-opening blow nozzles (18) are provided on the bottom wall of the rotating cylinder (17).

2. The device for preventing tobacco stems from slipping on the copper chain of a shredder according to claim 1, characterized in that, The feeding roller (6) is positioned between the front and rear rotating drums (17).

3. The device for preventing tobacco stems from slipping on the copper chain of a shredder according to claim 1, characterized in that, The outer ring of the bearing three (13) is fixedly connected to the inner wall of the housing (11) through the bearing seat, and the inner ring of the bearing three (13) is interference-fitted with the outer wall of the connecting rod (14).

4. The device for preventing tobacco stems from slipping on the copper chain of a shredder according to claim 1, characterized in that, The air inlet pipe (8), housing (7), rotating rod (10), rotating cylinder (17) and the blower (18) installed on it form a connected gas channel.

5. The apparatus according to claim 1, characterized in that, Multiple blow nozzles (18) are spaced apart along the axial direction of the rotating cylinder (17) on its outer wall.

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