A tobacco leaf packing device

Abstract

The present application relates to the technical field of tobacco packing, and discloses a tobacco packing device, which comprises a pre-pressing mechanism, a cloth distribution mechanism, a material box, a tobacco box and a pre-pressing conveying mechanism. The pre-pressing mechanism comprises a pre-pressing body arranged above the material box. The output end of the pre-pressing body is fixedly provided with a mounting block. The lower surface of the mounting block is provided with a plurality of pressing plates. The plurality of pressing plates form a pre-pressing plane. When the pre-pressing body is pressed down, the plurality of pressing plates are pressed down by the mounting block. A plurality of driving assemblies are fixedly arranged on the mounting block. The driving assemblies are in transmission connection with the pressing plates. The driving assemblies are used for driving the pressing plates to move along the height direction of the material box. The lower end surface of the pressing plate is provided with a pressure sensor. The present application is used for solving the problem that the existing technology cannot adjust the tobacco bale which has been compressed and whose compression density is detected to be uneven.

Description

Technical Field

[0001] This invention relates to the field of tobacco leaf baling technology, and more particularly to a tobacco leaf baling device. Background Technology

[0002] In tobacco processing and warehousing logistics, loose tobacco leaves typically need to be compressed and packaged for storage, aging, and transportation. The uniformity of the compressed density during this process affects the storage and aging of the tobacco bales. Current technology uses pressure sensors on the compression head to detect the uniformity of the compressed density and adjusts the feeding mechanism based on the detection results to ensure more uniform compressed density in subsequent processes.

[0003] For example, Chinese Patent [Publication No.: CN118514938A] discloses an online packing density detection device and control method for finished tobacco leaves after re-drying. The detection device is installed on the main pressure head of the packing machine and includes a mounting base, pressure sensors, and a sealing protective cover. Multiple pressure sensors are evenly distributed on the bottom surface of the mounting base. During pre-pressing and packing, each pressure sensor on the detection device detects the pressure value at its corresponding location. Based on the pressure value, the density distribution of the tobacco bales is detected, thereby adjusting the rotation speed and position of the material distribution mechanism located at the feeding point. Combined with adjustments to the push-out position and swing amplitude of the material distribution plate, the landing point of the tobacco leaves is controlled, achieving intelligent control of the finished tobacco leaf density.

[0004] While the device can adjust the uniformity of the compression density of subsequent tobacco leaves, it cannot adjust tobacco bales that have already been compressed and have been found to have uneven compression density. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a tobacco leaf baling device that solves the problem in the prior art that it is impossible to adjust compressed tobacco bales with uneven compression density.

[0006] The present invention solves the above-mentioned technical problems through the following technical means:

[0007] A tobacco leaf baling device includes a pre-compression mechanism, a feeding mechanism, a material box, a tobacco box, and a pre-compression conveying mechanism. The pre-compression mechanism includes a pre-compression main body disposed above the material box. An installation block is fixedly disposed at the output end of the pre-compression main body. Multiple pressure plates are disposed on the lower surface of the installation block, and the multiple pressure plates form a pre-compression plane. When the pre-compression main body presses down, the installation block drives the multiple pressure plates to press down. Multiple driving components are fixedly disposed on the installation block. The driving components are connected to the pressure plates and are used to drive the pressure plates to move along the height direction of the material box. A pressure sensor is disposed on the lower end face of the pressure plate.

[0008] By designing the above structure, during tobacco leaf compression, the drive assembly can independently move each pressure plate along the height direction, thereby achieving individual adjustment of local areas. This effectively ensures the consistency of tobacco leaf compression density and creates a depression on the upper surface of the tobacco leaf after the first pre-compression, facilitating subsequent replenishment of tobacco leaves. This avoids the situation where areas with lower tobacco leaf density after pre-compression rebound more strongly, causing replenished tobacco leaves to slip into adjacent areas.

[0009] Furthermore, the mounting block has multiple mounting cavities, the drive assembly is installed in the mounting cavity, the lower end face of the mounting cavity has a through hole, the upper end face of the pressure plate is fixedly provided with a connecting post, the connecting post is slidably inserted into the through hole, the free end of the connecting post is fixedly connected to a limiting plate, and the limiting plate is slidably disposed in the mounting cavity.

[0010] By setting up the above structure, the movement stability of each pressure plate during independent extension and retraction is ensured, preventing the pressure plates from falling off or tilting, thus improving the reliability of the device, and the structure is simple and compact.

[0011] Furthermore, the driving assembly includes a linear driver fixedly installed in the mounting cavity, the output end of which is fixedly connected to the upper surface of the limiting plate, for driving the pressure plate to move independently along the height direction of the material box.

[0012] By setting up the above structure and using a linear actuator to directly drive the limiting plate, thereby moving the pressure plate, precise and active control of the extension amount of each pressure plate is achieved. This enables precise quantitative and point-to-point adjustment of local pressure compensation operations based on feedback from pressure sensors, improving the accuracy and response speed of density adjustment.

[0013] Furthermore, a return spring is sleeved on the outer periphery of the connecting column, one end of the return spring abutting against the lower end face of the mounting cavity, and the other end abutting against the lower surface of the limiting plate.

[0014] By configuring the above structure, an auxiliary reset force is provided when the linear actuator retracts, reducing the load on the actuator while improving the speed and reliability of the pressure plate return. Furthermore, the spring reset helps prevent jamming and extends the lifespan of the device.

[0015] Furthermore, it also includes a controller, wherein the pressure sensor is electrically connected to the controller, and the drive component is electrically connected to the controller. When the pressure value detected by any of the pressure sensors deviates from the preset threshold range, the controller controls the corresponding drive component to drive the corresponding pressure plate to extend downward to locally pressurize the tobacco leaf.

[0016] By setting the above structure, the controller compares the pressure sensor detection value with the preset threshold range in real time. When the pressure in a certain area deviates, the controller automatically controls the corresponding drive component to extend the pressure plate downward to provide local pressure compensation.

[0017] Furthermore, the fabric feeding mechanism is electrically connected to the controller. The controller controls the fabric feeding mechanism to divide the preset amount of fabric into two feedings. After the first feeding, the controller controls the pre-compression mechanism to perform pre-compression and receives the pressure values ​​detected by each pressure sensor. Based on the pressure values, the controller determines whether the density distribution of the tobacco leaves is uniform after the first feeding. If it is determined to be uneven, the controller controls the fabric feeding mechanism to change the fabric feeding method for the second feeding to compensate for the unevenness of the first feeding and make the overall density of the tobacco pack uniform.

[0018] By setting up the above structure, the second feeding compensates for the compression of the tobacco pack after the first feeding, thus significantly improving the overall density uniformity of the total weight of the tobacco pack.

[0019] Furthermore, a sealing element is provided between the outer wall of the connecting column and the inner wall of the through hole.

[0020] By setting up the above structure, tobacco leaf debris and dust can be effectively prevented from entering the installation cavity, ensuring cleanliness and reliability during long-term operation and reducing maintenance frequency.

[0021] Furthermore, the linear actuator is one of an electric actuator, a hydraulic cylinder, or a pneumatic cylinder.

[0022] Furthermore, the cigarette box includes an outer box and an inner box, and the corners of the inner box are provided with elastic sections.

[0023] By setting up the above structure, during the compression and packaging process, the elastic section can buffer the pressure at the corners, preventing the tobacco leaves from being over-compressed or damaged due to stress concentration in the corner areas. At the same time, it helps to improve the density uniformity in the corner areas, making the density distribution of the entire tobacco pack more consistent.

[0024] Furthermore, the upper end face of the pressure plate is threadedly connected to the connecting column.

[0025] By setting up the above structure, when it is necessary to maintain or replace pressure plates of different sizes or shapes to adapt to different tobacco leaf varieties or packaging specifications, the operation is simple, and the versatility and maintainability of the device are improved.

[0026] The beneficial effects of this invention are:

[0027] 1. This invention, by incorporating a pressure sensor, multiple pressure plates, and a drive assembly, allows each pressure plate to move independently along its height during tobacco leaf compression. This enables individual adjustment of localized areas, effectively ensuring the consistency of tobacco leaf compression density. Furthermore, a depression is formed on the upper surface of the tobacco leaf after the initial pre-compression, facilitating subsequent replenishment. This prevents areas with lower pre-compression density from rebounding more strongly, which could cause replenished tobacco leaves to slip into adjacent areas.

[0028] 2. The present invention uses a controller to divide the preset amount of material into two feedings. After the first feeding and pre-compression, the density distribution is judged by a pressure sensor array. If unevenness is found, the feeding method of the second feeding is dynamically adjusted. By changing the material distribution, the unevenness of the first feeding is compensated, and the overall density uniformity of the cigarette pack is significantly improved. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a tobacco leaf baling device according to the present invention;

[0030] Figure 2 This is a schematic diagram showing the disassembled structure of the pre-compression mechanism in a tobacco leaf baling device according to the present invention;

[0031] Figure 3 This is a cross-sectional structural diagram of the pre-compression mechanism in a tobacco leaf baling device of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the tobacco box in a tobacco leaf baling device of the present invention;

[0033] Figure 5 yes Figure 4 A magnified structural diagram of A in the middle;

[0034] in,

[0035] 1. Pre-compression mechanism; 11. Pre-compression body; 12. Mounting block; 121. Mounting cavity; 122. Through hole; 13. Pressure plate; 131. Connecting column; 132. Limiting plate; 133. Return spring; 134. Seal; 14. Pressure sensor;

[0036] 2. Fabric assembly;

[0037] 3. Material bin;

[0038] 4. Smoke box; 41. Outer casing; 42. Inner casing; 421. Flexible section;

[0039] 5. Pre-compression conveying mechanism;

[0040] 6. Drive components; 61. Linear driver;

[0041] 7. Repressing station; 71. Conveyor belt. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figures 1-5 As shown, a tobacco leaf baling device according to this embodiment includes a pre-compression mechanism 1, a feeding mechanism 2, a material box 3, a tobacco box 4, and a pre-compression conveying mechanism 5. The material box 3 is vertically arranged via a mounting frame (existing structure, not shown in the figure). The pre-compression mechanism 1 is located directly above the material box 3 and is used to compress the loose tobacco leaves fed into the material box 3. The pre-compression conveying mechanism 5 is used to convey the empty tobacco box 4 to the bottom of the material box 3 and to send out the pre-compressed tobacco box 4, which is then conveyed to the subsequent re-compression station 7 via a conveyor belt 71 for further processing.

[0044] The pre-compression mechanism 1 includes a pre-compression body 11 fixedly installed on a frame (existing structure, not shown in the figure). The pre-compression body 11 is preferably a hydraulic cylinder or an electric screw lifting mechanism. The output end of the pre-compression body 11 is fixedly connected to a mounting block 12. Multiple pressure plates 13 are provided on the lower surface of the mounting block 12. In this embodiment, there are nine pressure plates 13. The lower surfaces of the multiple pressure plates 13 together form a flat pre-compression plane. When the pre-compression body 11 is pressed down, the mounting block 12 drives the multiple pressure plates 13 to press down, applying compression force to the tobacco leaves.

[0045] Multiple drive components 6 are fixedly installed on the mounting block 12. Each drive component 6 is connected to a corresponding pressure plate 13. The drive component 6 is used to independently drive the pressure plate 13 to move along the height direction of the material box 3. Each pressure plate 13 is provided with a pressure sensor 14 on its lower end face. This sensor is used to detect the reaction pressure that the pressure plate 13 bears during the pre-compression process in real time. The pressure value reflects the compression density of the tobacco leaf at the corresponding position.

[0046] During the compression of tobacco leaves, the pre-compression body 11 moves the mounting block 12 and all pressure plates 13 downwards to perform the first pre-compression of the tobacco leaves in the feed box 3. During the pre-compression process, pressure sensors 14 on the lower end face of each pressure plate 13 continuously monitor the pressure value of the corresponding area. When the pressure value of a pressure sensor 14 deviates from the preset threshold range, the drive component 6 for the corresponding area operates, pushing the pressure plate 13 downwards to perform additional local compression on that area until the pressure value detected by the pressure sensor 14 returns to the threshold range. This effectively ensures the consistency of the compressed tobacco leaf density and creates a depression on the upper surface of the tobacco leaves after the first pre-compression, facilitating subsequent replenishment. Specifically, after pre-compression, the tobacco leaves in the tobacco box 4 will rebound to a certain extent, with areas of lower density rebounding more significantly, resulting in the tobacco leaves in these areas being higher vertically than those in adjacent areas. When replenishing tobacco leaves, they may slip into adjacent areas, causing the tobacco leaves to deviate from the replenishment point. In this application, by controlling the corresponding pressure plate 13 to further pressurize, the tobacco density in the area with low tobacco density is increased to a preset value, and a depression is formed so that tobacco leaves can be added later.

[0047] In this embodiment, the mounting block 12 has multiple vertically oriented mounting cavities 121, and each drive component 6 is installed in a respective mounting cavity 121. A through hole 122 is formed on the lower end face of each mounting cavity 121. A connecting post 131 is fixedly mounted on the upper end face of the pressure plate 13, and the connecting post 131 is slidably inserted into the through hole 122. A limiting plate 132 is fixedly connected to the free end of the connecting post 131. The outer diameter of the limiting plate 132 is larger than the diameter of the through hole 122, and the limiting plate 132 is slidably disposed within the mounting cavity 121, guided by the inner wall of the mounting cavity 121. This structure ensures the stability of the movement of each pressure plate 13 during independent extension and retraction, prevents the pressure plate 13 from falling off or tilting, improves the reliability of the device, and has a simple and compact structure. In some other embodiments, the drive component 6 can also be directly disposed on the lower surface of the mounting block 12.

[0048] In this embodiment, the driving assembly 6 includes a linear actuator 61 fixedly installed in the mounting cavity 121. The output end of the linear actuator 61 is fixedly connected to the upper surface of the limiting plate 132. The linear actuator 61 is used to drive the pressure plate 13 to move independently along the height direction of the material box 3. In this embodiment, the linear actuator 61 is a hydraulic cylinder; in other embodiments, an electric push rod or a pneumatic cylinder can also be used. By using the linear actuator 61 to directly drive the limiting plate 132, thereby moving the pressure plate 13, precise active control of the extension amount of each pressure plate 13 is achieved. This allows the local pressure replenishment operation to be precisely adjusted quantitatively and at specific points based on the feedback from the pressure sensor 14, improving the accuracy and response speed of density adjustment. In some other embodiments, the limiting plate 132 can also be directly and sealed to the mounting cavity 121 in a sliding connection, and the movement of the limiting plate 132 can be controlled by setting an air pump to control the air pressure in the mounting cavity 121.

[0049] In this embodiment, a return spring 133 is sleeved around the outer periphery of the connecting post 131. One end of the return spring 133 abuts against the lower end face of the mounting cavity 121, and the other end abuts against the lower surface of the limiting plate 132. This provides auxiliary return force when the linear actuator 61 retracts, reducing the load on the actuator and improving the return speed and reliability of the pressure plate 13. Furthermore, the spring return helps prevent jamming and extends the lifespan of the device.

[0050] In this embodiment, a controller (not shown in the figure) is also included. Pressure sensors 14 are electrically connected to the controller, and drive components 6 are also electrically connected to the controller. The controller stores preset threshold ranges for each pressure sensor 14, which can be calibrated based on parameters such as tobacco variety, moisture content, and target density. When the pressure value detected by any pressure sensor 14 is lower than the preset threshold range (typically, low pressure indicates low density), the controller determines that the density of the tobacco area corresponding to that pressure plate 13 is uneven. At this time, the controller controls the corresponding drive component 6 to extend the corresponding pressure plate 13 downwards a certain distance to locally compress the area until the pressure value fed back by the pressure sensor 14 returns to the threshold range. In this way, the controller can improve the density uniformity of the currently compressed tobacco bales in real time and in a targeted manner.

[0051] In this embodiment, the feeding mechanism 2 is electrically connected to the controller. The controller controls the feeding mechanism 2 to evenly distribute the preset feeding amount into two feedings. In this embodiment, the preset feeding amount is 200 kg, and 100 kg is fed each time. After the first feeding of 100 kg, the controller controls the pre-compression mechanism 1 to perform pre-compression and receives the pressure values ​​detected by each pressure sensor 14. Based on the pressure values, the controller determines whether the density distribution of the tobacco leaves is uniform after the first feeding. If it is determined to be uneven, the controller controls the feeding mechanism 2 to change the feeding method for the second feeding before the second feeding to compensate for the unevenness of the first feeding. Specific means of changing the feeding method include, but are not limited to: adjusting the moving speed of the feeding belt of the feeding mechanism 2, changing the swing amplitude or swing frequency of the feeding plate. For example, if the density in the left front area is detected to be low after the first pre-compression, the controller controls the feeding mechanism 2 to increase the amount of material falling into the left front area during the second feeding. Due to the concave shape, the left front area can accommodate more tobacco leaves, effectively reducing the height difference between the left front area and other areas after the second feeding, thus reducing the likelihood of tobacco leaves slipping out of the left front area. By compensating for the compressed tobacco bale after the first feeding through the second feeding, the overall density uniformity of the 200 kg tobacco bale is significantly improved. Furthermore, after the tobacco bale pre-compression is completed, the feeding method of subsequent tobacco bales is adjusted based on the values ​​of each pressure sensor 14 after the first feeding, further improving the uniformity of the subsequent tobacco bale feeding.

[0052] In this embodiment, in order to ensure the continuity of the front-end tobacco leaf conveying, the baling device is generally used in two sets in combination. After one set of baling devices finishes feeding, the material cart will switch the feeding direction and transport the tobacco leaves to another set of baling devices for feeding.

[0053] In some other embodiments, each of the two baling devices can be configured with two sets of structures. Specifically, it includes two material bins 3, two tobacco bins 4, two pre-compression bodies 11, and two sets of feeding mechanisms 2. The two sets of feeding mechanisms 2 feed material into the two material bins 3 respectively. The purpose of this configuration is that each baling device can simultaneously feed 100 kg of tobacco leaves into each of the two material bins 3, for a total feeding volume of 200 kg, maintaining consistency with the tobacco leaf processing capacity of existing baling devices. This eliminates the need for significant adjustments to the material flow rate of the baling device, and similarly, also eliminates the need for significant adjustments to the production flow rate of the preceding processes.

[0054] In this embodiment, a sealing element 134 is provided between the outer wall of the connecting column 131 and the inner wall of the through hole 122. This effectively prevents tobacco debris and dust from entering the installation cavity 121, ensuring cleanliness and reliability during long-term operation and reducing maintenance frequency.

[0055] In this embodiment, the tobacco box 4 includes an outer box 41 and an inner box 42, with elastic segments 421 provided at the corners of the inner box 42. The elastic segments 421 are made of the same material as the inner box 42, namely paper. During the compression and packaging process, the elastic segments 421 can buffer the pressure at the corners, preventing the tobacco leaves from being over-compressed or damaged due to stress concentration in the corner areas. At the same time, it helps to improve the density uniformity in the corner areas, making the density distribution of the entire tobacco pack more consistent.

[0056] In this embodiment, the upper end face of the pressure plate 13 is threadedly connected to the connecting post 131. When it is necessary to maintain or replace pressure plates 13 of different sizes or shapes to adapt to different tobacco leaf varieties or packaging specifications, the operation is simple, improving the versatility and maintainability of the device.

[0057] Working principle:

[0058] First, the empty tobacco box 4 is placed below and aligned with the material box 3. The controller controls the feeding mechanism 2 to perform the first feeding, adding 100 kg of tobacco leaves into the material box 3. After feeding, the pre-compression body 11 moves the mounting block 12 and all the pressure plates 13 downwards to perform the first pre-compression of the tobacco leaves in the material box 3. During the pre-compression process, the pressure sensors 14 on the lower end face of each pressure plate 13 detect the pressure value of the corresponding area in real time and transmit the pressure value signal to the controller.

[0059] According to the pressure values ​​fed back by each pressure sensor 14, if each pressure value is within the preset threshold range, it indicates that the tobacco leaf density is uniform after the first feeding. Then, the controller controls the feeding mechanism 2 to feed the remaining 100 kg of tobacco leaves in the original feeding method. Subsequently, the pre-compression body 11 presses down again to complete the second pre-compression.

[0060] If the controller determines that the pressure value of one or more areas deviates from the preset threshold range, the controller controls the drive component 6 of the corresponding area to work. The linear actuator 61 pushes the limit plate 132 downward, thereby causing the connecting column 131 and the pressure plate 13 to extend downward, performing additional local compression on the area until the pressure value detected by the pressure sensor 14 returns to the threshold range. After the pressure compensation is completed, the pre-compression body 11 and the drive component 6 move upward and reset.

[0061] During the second feeding, 100 kg of tobacco leaves are fed. During the feeding process, the distribution method for the second feeding is adjusted: for example, by changing the moving speed of the feeding belt, the oscillation amplitude or frequency of the feeding plate in the feeding mechanism 2, so that more of the second-feeded tobacco leaves fall into the area with lower density after the first pre-compression, thus compensating for the unevenness of the first feeding. After the second feeding is completed, the pre-compression body 11 presses down again to complete the final compression.

[0062] Finally, the compressed cigarette packs are output from the pre-compression conveyor mechanism 5 along with the cigarette box 4, and enter the subsequent re-compression, packaging, and bundling processes.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A tobacco leaf baling device, comprising a pre-compression mechanism (1), a feeding mechanism (2), a material box (3), a tobacco box (4), and a pre-compression conveying mechanism (5), characterized in that, The pre-compression mechanism (1) includes a pre-compression body (11) disposed above the material box (3). An installation block (12) is fixedly disposed at the output end of the pre-compression body (11). Multiple pressure plates (13) are disposed on the lower surface of the installation block (12). The multiple pressure plates (13) form a pre-compression plane. When the pre-compression body (11) is pressed down, the multiple pressure plates (13) are driven to press down through the installation block (12). Multiple drive components (6) are fixedly disposed on the installation block (12). The drive components (6) are connected to the pressure plates (13) in a transmission manner. The drive components (6) are used to drive the pressure plates (13) to move along the height direction of the material box (3). A pressure sensor (14) is disposed on the lower end face of the pressure plate (13).

2. The tobacco leaf baling device according to claim 1, characterized in that, The mounting block (12) has multiple mounting cavities (121) inside. The drive assembly (6) is installed in the mounting cavity (121). The lower end face of the mounting cavity (121) has a through hole (122). The upper end face of the pressure plate (13) is fixedly provided with a connecting post (131). The connecting post (131) is slidably inserted into the through hole (122). The free end of the connecting post (131) is fixedly connected to a limiting plate (132). The limiting plate (132) is slidably disposed in the mounting cavity (121).

3. The tobacco leaf baling device according to claim 2, characterized in that, The drive assembly (6) includes a linear driver (61) fixedly installed in the mounting cavity (121). The output end of the linear driver (61) is fixedly connected to the upper surface of the limiting plate (132) and is used to drive the pressure plate (13) to move independently along the height direction of the material box (3).

4. A tobacco leaf baling device according to claim 2, characterized in that, A reset spring (133) is sleeved on the outer periphery of the connecting column (131). One end of the reset spring (133) abuts against the lower end face of the mounting cavity (121), and the other end abuts against the lower surface of the limiting plate (132).

5. A tobacco leaf baling device according to claim 1, characterized in that, It also includes a controller. The pressure sensor (14) is electrically connected to the controller, and the drive component (6) is electrically connected to the controller. When the pressure value detected by any of the pressure sensors (14) deviates from the preset threshold range, the controller controls the corresponding drive component (6) to drive the corresponding pressure plate (13) to extend downward to locally pressurize the tobacco leaf.

6. A tobacco leaf baling device according to claim 5, characterized in that, The fabric feeding mechanism (2) is electrically connected to the controller. The controller controls the fabric feeding mechanism (2) to divide the preset amount of fabric into two feedings. After the first feeding, the controller controls the pre-compression mechanism (1) to pre-compress and receives the pressure values ​​detected by each pressure sensor (14). Based on the pressure values, the controller determines whether the density distribution of the tobacco leaves is uniform after the first feeding. If it is determined to be uneven, the controller controls the fabric feeding mechanism (2) to change the fabric feeding method of the second feeding to compensate for the unevenness of the first feeding and make the overall density of the tobacco pack uniform.

7. A tobacco leaf baling device according to claim 2, characterized in that, A sealing element (134) is provided between the outer wall of the connecting column (131) and the inner wall of the through hole (122).

8. A tobacco leaf baling device according to claim 3, characterized in that, The linear actuator (61) is one of an electric actuator, a hydraulic cylinder, or a pneumatic cylinder.

9. A tobacco leaf baling device according to claim 1, characterized in that, The cigarette box (4) includes an outer box (41) and an inner box (42), and the inner box (42) has elastic sections (421) at its corners.

10. A tobacco leaf baling device according to claim 2, characterized in that, The upper end face of the pressure plate (13) is threadedly connected to the connecting column (131).

Images