A kind of material equalizing device for tobacco loose rehydration process before

Abstract

This utility model relates to the field of tobacco technology, specifically to a material equalization device for tobacco leaves before the loosening and rehydration process. It includes a support plate with multiple baffles on its top wall and a front-rotating fixing mechanism on the front side of its bottom wall. The front-rotating fixing mechanism includes a base with front fixing seats on both the left and right outer walls. A round rod is rotatably connected to the inner walls of the left and right sides of the base via bearings, and a cylinder is interference-fitted to the outer wall of the round rod. This device uses a material-pushing rod at the unloading end of a dynamic weigher conveyor belt to push the tobacco leaves off the conveyor belt, causing them to fall between the support plate and the baffles by gravity. During the fall, the tobacco leaves impact the baffles with impact force, effectively dispersing them and loosening the originally thick and easily clogged tobacco leaves in advance. This significantly reduces the material size and effectively lowers the risk of material blockage at the entrance of the loosening and rehydration process.

Description

Technical Field

[0001] This utility model relates to the technical field of tobacco processing equipment, specifically to a material equalization device for tobacco leaves before the loosening and rehydration process. Background Technology

[0002] In modern tobacco processing, each step has a crucial impact on the quality of the finished product. Among them, the loosening and rehydration process, as an important step in adjusting the moisture content of tobacco leaves and improving their physicochemical properties, is directly related to the performance of subsequent processing and the improvement of the quality of tobacco products.

[0003] In existing processes, compacted tobacco bales must first be sliced ​​to form tobacco flakes suitable for conveying and rehydration. The sliced ​​flakes are typically conveyed sequentially via a dynamic weighing conveyor belt and a sliding vibrating trough to the loosening and rehydration equipment. However, due to the high-pressure compaction characteristics of the original tobacco bales and limitations of the slicing process, some tobacco flakes tend to form thick, overlapping layers, leading to material blockage at the inlet of the loosening and rehydration equipment during conveying. This blockage not only causes material interruptions and equipment downtime, severely impacting production efficiency and stability, but also increases maintenance costs and hinders the smooth operation of the production line.

[0004] Even without material blockage, the thick tobacco sheets do not come into sufficient contact with the rehydration medium (such as steam or water mist) when tumbling in the rehydration drum. This results in uneven loosening and rehydration of the tobacco leaves, weakening the rehydration effect and causing significant fluctuations in the temperature and humidity of the exported tobacco leaves. Unstable temperature and humidity further affect subsequent key processes such as shredding and drying, manifesting as uneven shredding thickness, fluctuations in filling values, and decreased combustion performance, ultimately impacting the aroma and taste quality of the cigarette products.

[0005] Therefore, in order to address the problems of material blockage and uneven moisture absorption caused by uneven tobacco sheet thickness during the transition from the slicing process to the loosening and rehydration process, it is urgent to develop a device that can achieve uniform treatment of tobacco sheets before loosening and rehydration, so as to ensure the stability of the production process and improve the quality of tobacco processing.

[0006] This application is submitted to address the above issues. Utility Model Content

[0007] In order to solve the above-mentioned problems, this utility model designs a material equalization device for tobacco leaves before the loosening and rehydration process.

[0008] The technical solution adopted in this utility model is as follows:

[0009] A material equalization device for tobacco leaf loosening and rehydration process is provided, including a support plate 1, a plurality of baffles 2 on the top wall of the support plate 1, a front-rotating fixing mechanism on the front side of the bottom wall of the support plate 1, and a vibration mechanism on the rear side of the bottom wall of the support plate 1.

[0010] The front-rotating fixing mechanism includes a base 3, with front fixing seats 4 respectively provided on the left and right outer walls of the base 3. The left and right inner walls of the base 3 are respectively rotatably connected to round rods 6 through first bearings 5. A cylinder 7 is installed on the outer peripheral wall of the round rod 6 with an interference fit. The top end of the cylinder 7 and the bottom end of the connecting block 8 form a shape fit. The top end of the connecting block 8 is fixedly connected to the front side of the bottom wall of the support plate 1.

[0011] The cylinder 7 and the connecting block 8 adopt a shape-fitting structure. During the rotation of the cylinder 7, the disturbance force generated by its slight eccentricity or rotational imbalance can be transmitted to the connecting block 8, which is fixedly installed on the front side of the bottom end of the support plate 1, thereby causing a slight disturbance at the front end of the support plate, thus promoting the uniform spreading of the material on it.

[0012] Preferably, the vibration mechanism includes a connecting plate 9, and top seats 10 are respectively provided on the left and right outer walls of the connecting plate 9. A rear fixing seat 11 is provided on the outer end of each top seat 10. A spring 12 is provided on the top wall of the top seat 10. One end of the spring 12 is fixedly connected to the top of the top seat 10, and the other end is fixedly connected to the bottom of the support plate 1.

[0013] A motor 13 is provided on the top left side of the connecting plate 9. The output end of the motor 13 is connected to a rotating rod 14 through a coupling. The other end of the rotating rod 14 is rotatably connected to a side plate 16 through a second bearing 15. The side plate 16 is fixedly installed on the right side of the top of the connecting plate 9.

[0014] The outer periphery of the rotating rod 14 is provided with a plurality of first protrusions 17 and second protrusions 18 for interfering with vibration, which are used to periodically impact the connecting plate or top seat during rotation to generate disturbance vibration.

[0015] Preferably, the outer wall of the rotating rod 14 is provided with a plurality of protrusions 17 and a plurality of protrusions 18, and the protrusions 17 and protrusions 18 are arranged alternately.

[0016] Preferably, the outer ring of the second bearing 15 is fixedly connected to the outer wall of the side plate 16 through a bearing seat, and the inner ring of the second bearing 15 is interference-fitted to the outer wall of the rotating rod 14.

[0017] Preferably, the plurality of baffles 2 are arranged sequentially from left to right along the top of the support plate 1, and a gap is left between adjacent baffles.

[0018] Preferably, the upper end face of the baffle 2 gradually decreases in height from the rear end to the front end of the support plate 1 along the tobacco conveying direction, forming an inclined surface.

[0019] The advantages of this utility model over the prior art are as follows:

[0020] This device is installed at the height difference between the downstream of the dynamic scale conveyor belt and the upstream of the sliding vibrating trough, specifically located below the sliding vibrating trough and receiving its unloading end. In the prior art, the end of the dynamic scale conveyor belt is equipped with a material-pushing rod, which pushes the tobacco sheets off the conveyor belt and falls with gravity between the lower support plate (1) and multiple staggered baffles (2). During the falling process, the tobacco sheets impact the baffles with gravity, are sheared, split and dispersed, and the tobacco sheets that are originally thick and easy to block are granulated in advance, significantly reducing the material size. Thus, the risk of material blockage at the entrance of the subsequent loosening and rehydration process is effectively reduced, ensuring the continuity of material transportation, avoiding material jamming and machine stoppage, significantly improving production efficiency, reducing production costs, and maintaining the continuity and stability of the production line, ensuring that the production plan is completed on schedule.

[0021] This device employs a method where, after the material falls onto the support plate and baffle, it is first sheared and split by the baffle, and then rapidly loosened by the vibration of the rear end of the support plate. This design ensures that the material is fully loosened before entering the loosening and rehumidifying drum, allowing tobacco leaves from different parts to come into more uniform contact with the rehumidifying medium in the subsequent drum. The difference in the degree and time of contact is reduced, thereby achieving a more uniform loosening and rehumidifying effect and effectively improving the temperature and humidity consistency of the tobacco leaves at the outlet of the loosening and rehumidifying process.

[0022] The device features a simple and reasonable structural design, flexible installation, and easy operation. This simple structure and convenient installation method not only facilitates the modification and installation on existing tobacco processing equipment, but also reduces maintenance difficulty and costs during later maintenance and repair, thereby improving the efficiency and reliability of the equipment. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the vibration mechanism structure of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Support plate, 2. Baffle, 3. Base, 4. Front fixed seat, 5. Bearing 1, 6. Round rod, 7. Cylinder, 8. Connecting block, 9. Connecting plate, 10. Top seat, 11. Rear fixed seat, 12. Spring, 13. Motor, 14. Rotating rod, 15. Bearing 2, 16. Side plate, 17. Protrusion 1, 18. Protrusion 2. 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 1-2 As shown, a material equalization device for tobacco leaf loosening and rehydration process includes a support plate 1, a plurality of baffles 2 on the top wall of the support plate 1, and a front-rotating fixing mechanism on the front side of the bottom wall of the support plate 1.

[0031] The front-rotating fixing mechanism includes a base 3, and front fixing seats 4 are provided on the outer walls of both the left and right sides of the base 3. The inner walls of the left and right sides of the base 3 are rotatably connected to a round rod 6 through a bearing 5. A cylinder 7 is interference-fitted to the outer wall of the round rod 6. The top end of the cylinder 7 and the bottom end of the connecting block 8 form a shape fit. The top end of the connecting block 8 is fixedly connected to the front side of the bottom wall of the support plate 1.

[0032] A vibration mechanism is provided on the rear side of the bottom wall of the support plate 1.

[0033] Furthermore, the vibration mechanism includes a connecting plate 9, with top seats 10 on both the left and right outer walls of the connecting plate 9. A rear fixing seat 11 is provided on the outer end wall of the top seat 10, and a spring 12 is provided on the top wall of the top seat 10. One end of the spring 12 is fixedly connected to the top of the top seat 10, and the other end is fixedly connected to the bottom of the support plate 1. A motor 13 is provided on the left side of the top wall of the connecting plate 9. The output end of the motor 13 is locked with a rotating rod 14 via a coupling, and the other end of the rotating rod 14 is connected via... The bearing 15 is rotatably connected to the side plate 16. The bottom wall of the side plate 16 is fixedly connected to the right side of the top wall of the connecting plate 9. Multiple protrusions 17 and 18 are interference-fitted on the outer wall of the rotating rod 14. After the motor 13 is started, the rotating rod 14 drives the multiple protrusions 17 and 18 to rotate. Through the intermittent contact between the protrusions 17 and 18 and the rear end of the support plate 1, and with the tension of the spring 12, the rapid vibration effect of the rear end of the support plate 1 can be achieved.

[0034] Furthermore, multiple protrusions 17 and 18 are staggered on the outer wall of the rotating rod 14. After the motor 13 is started, the rotating rod 14 drives the multiple protrusions 17 and 18 to rotate. The protrusions 17 and 18 intermittently contact the rear end of the support plate 1, which facilitates the continuous upward lifting of the support plate 1.

[0035] Furthermore, the outer ring of bearing 15 is fixedly connected to the outer wall of side plate 16 through bearing seat, and the inner ring of bearing 15 is interference-fitted to the outer wall of rotating rod 14. Bearing 15 fixes rotating rod 14, facilitating rotation of rotating rod 14 through bearing 15.

[0036] Furthermore, multiple baffles 2 are arranged from left to right on the top wall of the support plate 1. Existing dynamic scales typically have a material-pushing rod at the end of the conveyor belt to push the tobacco sheets off the conveyor belt. Specifically, the material at the unloading end of the dynamic scale conveyor belt is pushed off by the material-pushing rod located above this device and falls onto the support plate 1 and the baffles 2. When the material falls downwards under the action of gravity, it has a certain impact force. When it comes into contact with the multiple baffles 2, it is sheared by the baffles 2 and splits.

[0037] Furthermore, the upper wall of the baffle 2 is designed as an inclined slope. When the material falls onto the rear end of the support plate 1 and the baffle 2, the material is first sheared and split by the baffle 2. Since the upper wall of the baffle 2 is designed as an inclined slope, and in conjunction with the vibration of the rear end of the support plate 1, the material slides from the rear to the front and falls into the sliding vibration groove.

[0038] 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.

[0039] One specific application of this embodiment is:

[0040] When using this device, it is necessary to install it securely in the corresponding position of the tobacco processing equipment according to the specific installation method. Specifically, this device is installed by the front fixed seat 4 and the rear fixed seat 11. The installation method is flexible and diverse. According to the actual production needs and equipment characteristics, welding or bolt tightening can be selected to firmly fix the device on both sides of the unloading end of the dynamic weighing conveyor.

[0041] The device is strategically positioned at the height difference between the dynamic weighing scale and the sliding vibrating trough. This layout fully utilizes the space between the devices, maximizing their effectiveness. The device is tilted, with the front lower and the rear higher, providing favorable conditions for material conveying and processing. In practical applications, the device can be positioned parallel to the sliding vibrating trough, or its tilt angle can be greater than that of the trough, depending on the specific circumstances, to meet the process requirements of different production scenarios.

[0042] During tobacco processing, when the material is conveyed to the unloading end of the dynamic scale, the material-pulling rod at the unloading end begins to function. The material-pulling rod will move the material at the unloading end, so that the material falls smoothly from the dynamic scale onto the support plate 1 and baffle 2 below. When the material falls onto the multiple baffles 2 by gravity, it impacts the baffles 2 with a certain impact force, which initially disperses the tobacco sheets, loosens the tobacco sheets that are originally thick and easy to clog, and disperses the originally large material blocks, laying the foundation for subsequent loosening operations.

[0043] While the material is dispersed by the baffle 2, the power system of the device starts to operate. By starting the motor 13, the power of the motor is transmitted to the rotating rod 14, causing the rotating rod 14 to drive the multiple protrusions 17 and 18 installed on it to rotate. As the protrusions 17 and 18 rotate, they will intermittently contact the rear end of the support plate 1. During the contact with the rear end of the support plate 1, the protrusions 17 and 18 will exert a force on the support plate 1. At the same time, in conjunction with the tension of the spring 12, this synergistic effect enables the rear end of the support plate 1 to generate a rapid vibration effect.

[0044] While the rear end of the support plate 1 vibrates, due to the shape-fitting structure between the cylinder 7 and the connecting block 8, the disturbance force generated by the slight eccentricity or rotational imbalance of the cylinder 7 during rotation can be transmitted to the connecting block 8 fixedly installed on the front side of the bottom end of the support plate 1 through the fitting structure, thereby causing a slight disturbance at the front end of the support plate. This slight disturbance at the front end and the vibration at the rear end work together to further enhance the device's ability to process materials.

[0045] The material first falls onto the rear end of the support plate 1 and the baffle 2. Here, the material undergoes two key processing steps. On the one hand, the baffle 2 will impact and disperse the material in advance, thus initially dispersing it. On the other hand, the vibration effect at the rear end of the support plate 1 will quickly loosen the material, making the material more loosely bonded and further improving the degree of material dispersion.

[0046] Due to the inclined design of the support plate 1, with the rear end higher and the front end lower, coupled with the continuous vibration at the rear end, the material will naturally slide from the rear to the front under this dual action. Finally, the material will smoothly slide into the sliding vibration groove below, and then enter the loosening and rehydration drum through the sliding vibration groove. Thus, the entire device completes the uniform material operation from the dynamic weighing and unloading end to the entry into the loosening and rehydration drum, ensuring that the material entering the loosening and rehydration process is more uniform in terms of thickness and looseness, providing better raw material conditions for subsequent tobacco processing processes.

[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 material homogenizing device for use in a tobacco leaf bulk conditioning process, characterized in that, Includes a support plate (1), the top wall of the support plate (1) is provided with multiple baffles (2), the front side of the bottom wall of the support plate (1) is provided with a front rotation fixing mechanism, and the rear side of the bottom wall of the support plate (1) is provided with a vibration mechanism. The front-rotating fixing mechanism includes a base (3), and front fixing seats (4) are respectively provided on the left and right outer walls of the base (3). The left and right inner walls of the base (3) are respectively rotatably connected to round rods (6) through bearings (5). A cylinder (7) is installed on the outer peripheral wall of the round rod (6) with an interference fit. The top end of the cylinder (7) and the bottom end of the connecting block (8) form a shape fit. The top end of the connecting block (8) is fixedly connected to the front side of the bottom wall of the support plate (1).

2. The equalization device for tobacco leaves before the loosening and rehydration process according to claim 1, characterized in that, The vibration mechanism includes a connecting plate (9), and top seats (10) are provided on the left and right outer walls of the connecting plate (9). Each top seat (10) has a rear fixing seat (11) at its outer end. A spring (12) is provided on the top wall of the top seat (10). One end of the spring (12) is fixedly connected to the top of the top seat (10), and the other end is fixedly connected to the bottom of the support plate (1). A motor (13) is provided on the top left side of the connecting plate (9). The output end of the motor (13) is connected to a rotating rod (14) through a coupling. The other end of the rotating rod (14) is rotatably connected to a side plate (16) through a bearing (15). The side plate (16) is fixedly installed on the right side of the top of the connecting plate (9). The outer periphery of the rotating rod (14) is provided with a plurality of protrusions 1 (17) and 2 (18) for interfering with vibration, which are used to periodically impact the connecting plate or the top seat during rotation to generate disturbance vibration.

3. The uniformizing device for the tobacco leaf bulk conditioning process according to claim 2, characterized in that, The outer wall of the rotating rod (14) is provided with a plurality of protrusions one (17) and a plurality of protrusions two (18), and the protrusions one (17) and protrusions two (18) are arranged alternately.

4. A material equalization device for tobacco leaf loosening and rehydration process according to claim 2, characterized in that, The outer ring of the second bearing (15) is fixedly connected to the outer wall of the side plate (16) through the bearing seat, and the inner ring of the second bearing (15) is interference-fitted to the outer wall of the rotating rod (14).

5. The material equalization device for tobacco leaf loosening and rehydration process according to claim 1, characterized in that, The plurality of baffles (2) are arranged sequentially from left to right along the top of the support plate (1), and there is a gap between adjacent baffles.

6. The uniformizing device for the tobacco leaf bulk conditioning process according to claim 1, characterized in that, The upper surface of the baffle (2) gradually decreases in height from the rear end to the front end of the support plate (1) along the tobacco conveying direction, forming an inclined slope.

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