Tobacco impurity removing device

Abstract

The application relates to a tobacco impurity removing device, and belongs to the technical field of tobacco processing. The application specifically comprises a rack arranged on a belt conveyor, a pneumatic conveying mechanism arranged on the rack, and a positioning driving mechanism arranged on the rack; the rack is used to arrange the pneumatic conveying mechanism above the belt conveyor; the positioning driving mechanism is connected with the pneumatic conveying mechanism and is used to drive the pneumatic conveying mechanism to move in the horizontal and vertical directions; the pneumatic conveying mechanism generates negative pressure and is used to adsorb impurities in tobacco materials during the process that the belt conveyor conveys the tobacco materials. During the process that the belt conveyor conveys the tobacco materials, the negative pressure generated by the pneumatic conveying mechanism located above the belt conveyor is used to adsorb the impurities in the tobacco materials, so that the device can replace manual secondary impurity removing of the tobacco materials, the labor intensity of workers is reduced, the impurity removing efficiency is improved, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of tobacco processing technology, and in particular to a tobacco impurity removal device. Background Technology

[0002] In the cigarette manufacturing process, impurity removal is an essential step. Some impurities in tobacco come from the hemp flakes used to package the tobacco and the hemp ropes used to bind them. These fragmented impurities mix into the tobacco and, after being re-dried, form hemp fibers. Other metallic or non-metallic impurities are also inevitably mixed into the tobacco. If these impurities are not effectively removed, they will affect the quality of the tobacco, thus affecting the taste of the cigarette and even causing harm to the human body.

[0003] The impurity removal process is generally carried out during the conveying of tobacco materials on a belt conveyor. Current technologies typically employ techniques such as spectral analysis, air separation, and metal detection for impurity removal. However, these methods alone only achieve a removal rate of around 80%, failing to completely remove impurities from the tobacco materials. Therefore, secondary manual impurity removal is still required, leading to high labor intensity for workers and low removal efficiency, thus increasing production costs and reducing overall production efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing a tobacco impurity removal device that can replace manual labor in the secondary impurity removal of tobacco materials, thereby reducing the labor intensity of workers, improving impurity removal efficiency, and ultimately reducing production costs and increasing production efficiency.

[0005] This invention proposes a tobacco impurity removal device, comprising a frame mounted on a belt conveyor, a pneumatic conveying mechanism mounted on the frame, and a positioning drive mechanism mounted on the frame; the frame is used to mount the pneumatic conveying mechanism above the belt conveyor, and the positioning drive mechanism is connected to the pneumatic conveying mechanism to drive the pneumatic conveying mechanism to move in the horizontal and vertical directions; the pneumatic conveying mechanism generates negative pressure to adsorb impurities in the tobacco material during the conveying process of the tobacco material on the belt conveyor.

[0006] Furthermore, the frame includes two support plates disposed on both sides, and a crossbeam connecting the two support plates. The two support plates are fixedly connected to the two side plates of the belt conveyor, and the positioning drive mechanism is disposed on the crossbeam.

[0007] Furthermore, the frame also includes a receiving mechanism located below the crossbeam. The discharge end of the pneumatic conveying mechanism is connected to the receiving mechanism, and the feed end extends downward. When the pneumatic conveying mechanism generates negative pressure, the feed end adsorbs impurities in the tobacco material, and the discharge end conveys the adsorbed tobacco impurities to the receiving mechanism. The receiving mechanism is used to store the tobacco impurities.

[0008] Furthermore, the receiving mechanism includes a receiving plate and a first connecting frame that fixes both ends of the receiving plate to the two support plates respectively. The receiving plate forms a receiving groove with a top opening, which is used to store tobacco debris conveyed by the discharge end of the pneumatic conveying mechanism.

[0009] Furthermore, the pneumatic conveying mechanism includes a conveying pipe with its discharge end connected to the receiving mechanism and its inlet end extending downwards, and a negative pressure device disposed on the conveying pipe. The negative pressure device is used to generate negative pressure in the conveying pipe. The inlet end of the conveying pipe adsorbs impurities in the tobacco material, and the discharge end conveys the adsorbed tobacco impurities to the receiving mechanism.

[0010] Furthermore, the conveying pipe includes a feed pipe forming an inlet end, a discharge pipe forming an outlet end, and a flexible hose connecting the feed pipe and the discharge pipe. The negative pressure device is disposed on the feed pipe, and the positioning drive mechanism is connected to the feed pipe to drive the feed pipe to move in the horizontal and vertical directions.

[0011] Furthermore, the pneumatic conveying mechanism also includes a second connecting frame fixedly connected to the receiving mechanism, and a pressure ring disposed on the second connecting frame. The pressure ring is sleeved on the outside of the discharge pipe to fix the discharge pipe to the second connecting frame.

[0012] Furthermore, the positioning drive mechanism includes a horizontal moving component disposed on the crossbeam and a vertical moving component disposed on the horizontal moving component. The vertical moving component is connected to the pneumatic conveying mechanism. During the horizontal movement of the horizontal moving component on the crossbeam, the vertical moving component drives the vertical moving component and the pneumatic conveying mechanism to move in the horizontal direction. During the vertical movement of the vertical moving component on the horizontal moving component, the vertical moving component drives the pneumatic conveying mechanism to move in the vertical direction.

[0013] Furthermore, a first slide rail is provided on the crossbeam along the axial direction, and the horizontal moving component includes a first slider that is slidably connected to the first slide rail, and a first servo motor provided on the crossbeam. The first servo motor is used to drive the first slider to move horizontally on the first slide rail, and the vertical moving component is connected to the first slider.

[0014] Furthermore, the vertical moving component includes a second slide rail fixedly connected to the horizontal moving component, a second slider slidably connected to the second slide rail, and a second servo motor disposed on the second slide rail. The second slide rail is arranged in a vertical direction, the second slider is connected to the pneumatic conveying mechanism, and the second servo motor is used to drive the second slider to move vertically on the second slide rail.

[0015] The tobacco impurity removal device proposed in this invention has the following beneficial effects:

[0016] (1) During the process of conveying tobacco materials by the belt conveyor, the device generates negative pressure through the pneumatic conveying mechanism located above the belt conveyor to adsorb impurities in the tobacco materials, thereby enabling the device to replace manual labor for secondary impurity removal of tobacco materials, thereby reducing the labor intensity of workers, improving the impurity removal efficiency, and thus reducing production costs and improving production efficiency.

[0017] (2) The positioning drive mechanism of this device is connected to the pneumatic conveying mechanism. The positioning drive mechanism drives the pneumatic conveying mechanism to move horizontally and vertically on the frame, adjusting the horizontal position and vertical height of the pneumatic conveying mechanism above the belt conveyor. This adjusts the position of the pneumatic conveying mechanism in adsorbing impurities in the tobacco material in the horizontal and vertical directions, thereby improving the adsorption effect of the pneumatic conveying mechanism on impurities in the tobacco material and thus improving the effect of this device in removing impurities from the tobacco material.

[0018] (3) The frame of this device also includes a receiving mechanism. After the feed end of the pneumatic conveying mechanism adsorbs the impurities in the tobacco material, the adsorbed impurities are conveyed to the receiving mechanism through the discharge end of the pneumatic conveying mechanism. The receiving mechanism stores the impurities removed from the tobacco material, thereby preventing the impurities from clogging in the pneumatic conveying mechanism, improving the working efficiency of this device, and thus improving the production efficiency.

[0019] (4) The receiving mechanism of this device includes a receiving plate and a first connecting frame. The first connecting frame fixes the two ends of the receiving plate to two support plates respectively. A receiving groove is formed in the receiving plate. The top of the receiving groove is open, so that the discharge end of the pneumatic conveying mechanism will transport the adsorbed debris to the receiving groove through the top opening of the receiving groove. The debris is then stored in the receiving groove to prevent the debris from clogging in the pneumatic conveying mechanism and improve the working efficiency of this device.

[0020] (5) The pneumatic conveying mechanism of this device includes a conveying pipe and a negative pressure device. The negative pressure device is installed on the conveying pipe. When the tobacco material passes through the feed end of the conveying pipe, the feed end of the conveying pipe adsorbs the impurities in the tobacco material. The adsorbed impurities flow through the conveying pipe and are then conveyed from the discharge end of the conveying pipe to the receiving trough of the receiving plate. The impurities are stored through the receiving trough to prevent the impurities from clogging the conveying pipe, thereby improving the working efficiency of this device and thus improving the production efficiency.

[0021] (6) The conveying pipe of this device includes a feed pipe forming the feed end, a discharge pipe forming the discharge end, and a flexible hose connecting the feed pipe and the discharge pipe. The positioning drive mechanism is connected to the feed pipe, so that the feed pipe moves horizontally and vertically on the crossbeam through the positioning drive mechanism, and drives the feed pipe to move horizontally and vertically above the belt conveyor. At this time, since the feed pipe and the discharge pipe are connected by a flexible hose, the discharge pipe fixedly connected to the receiving plate is kept in a fixed state by the deformation of the flexible hose.

[0022] (7) The pneumatic conveying mechanism of this device also includes a second connecting frame and a pressure ring. The discharge pipe is fixed on the second connecting frame by the pressure ring, and its outlet faces the receiving groove of the receiving plate. Thus, after the impurities in the tobacco material are adsorbed at the inlet of the feed pipe, the impurities flow through the flexible hose and the discharge pipe in sequence, and are transported to the receiving groove of the receiving plate through the outlet of the discharge pipe, so that the receiving groove stores the impurities removed from the tobacco material.

[0023] (8) The positioning drive mechanism of this device includes a horizontal moving component and a vertical moving component. When the horizontal moving component moves horizontally on the crossbeam, it drives the vertical moving component and the feed pipe to move in the horizontal direction, thereby adjusting the position of the feed pipe in the horizontal direction. When the vertical moving component moves vertically on the horizontal moving component, it drives the feed pipe to move in the vertical direction, thereby adjusting the position of the feed pipe in the vertical direction, thereby improving the adsorption effect of the pneumatic conveying mechanism on impurities in tobacco materials.

[0024] (9) The crossbeam of this device is provided with a first slide rail along the axial direction. The horizontal moving component includes a first slider and a first servo motor. When the crossbeam moves back and forth along the first slide rail, the first slider is driven by the first servo motor to drive the vertical moving component and the feed pipe to move in the horizontal direction. The feed pipe is adjusted to adsorb the impurities in the tobacco material in the horizontal direction, thereby improving the adsorption effect of the pneumatic conveying mechanism on the impurities in the tobacco material, and thus improving the effect of this device in removing impurities from the tobacco material.

[0025] (10) The vertical moving component of this device includes a second slide rail, a second slider and a second servo motor. The second slider is driven by the second servo motor to move back and forth on the second slide rail. When the feed pipe moves in the vertical direction, the height of the feed pipe above the belt conveyor is adjusted, thereby adjusting the position of the feed pipe adsorbing impurities in the tobacco material in the vertical direction, improving the adsorption effect of the pneumatic conveying mechanism on impurities in the tobacco material, and thus improving the effect of this device in removing impurities from the tobacco material. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In these drawings, similar reference numerals are used to denote similar elements.

[0027] Figure 1 This is a schematic diagram of the structure of a tobacco impurity removal device according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the frame of a tobacco impurity removal device according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the receiving mechanism of a tobacco impurity removal device according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of a pneumatic conveying mechanism of a tobacco impurity removal device according to an embodiment of the present invention, which is mounted on a frame.

[0031] Figure 5 This is a schematic diagram of the conveying pipe of a tobacco impurity removal device according to an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the positioning drive mechanism of a tobacco impurity removal device according to an embodiment of the present invention, which is mounted on a frame.

[0033] Figure 7 This is a schematic diagram of the structure of a horizontal moving component of a tobacco impurity removal device according to an embodiment of the present invention, which is mounted on a frame.

[0034] Figure 8 This is a schematic diagram of the structure of a vertical moving component of a tobacco impurity removal device according to an embodiment of the present invention.

[0035] In the diagram: 1. Frame; 11. Support plate; 12. Crossbeam; 121. First slide rail; 13. Receiving mechanism; 131. Receiving plate; 1311. Receiving trough; 132. First connecting frame; 2. Pneumatic conveying mechanism; 21. Conveying pipe; 211. Feeding pipe; 212. Discharge pipe; 213. Flexible hose; 22. Negative pressure device; 23. Second connecting frame; 24. Pressure ring; 3. Positioning drive mechanism; 31. Horizontal movement component; 311. First slider; 312. First servo motor; 32. Vertical movement component; 321. Second slide rail; 322. Second slider; 323. Second servo motor. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0037] Please see Figures 1 to 8 An embodiment of the present invention provides a tobacco impurity removal device, comprising a frame 1 mounted on a belt conveyor, a pneumatic conveying mechanism 2 mounted on the frame 1, and a positioning drive mechanism 3 mounted on the frame 1. The frame 1 is used to mount the pneumatic conveying mechanism 2 above the belt conveyor. The positioning drive mechanism 3 is connected to the pneumatic conveying mechanism 2 and is used to drive the pneumatic conveying mechanism 2 to move in the horizontal and vertical directions. The pneumatic conveying mechanism 2 generates negative pressure to adsorb impurities in the tobacco material during the conveying process of the tobacco material on the belt conveyor.

[0038] In this application, the tobacco impurity removal device includes a frame 1, a pneumatic conveying mechanism 2, and a positioning drive mechanism 3. The frame 1 is mounted on a belt conveyor, and both the pneumatic conveying mechanism 2 and the positioning drive mechanism 3 are mounted on the frame 1, thereby mounting the pneumatic conveying mechanism 2 and the positioning drive mechanism 3 on the belt conveyor via the frame 1.

[0039] During the conveying of tobacco materials by the belt conveyor, the pneumatic conveying mechanism 2 located above the belt conveyor generates negative pressure to adsorb impurities in the tobacco materials. This allows the device to replace manual labor for secondary impurity removal of tobacco materials, thereby reducing the labor intensity of workers, improving impurity removal efficiency, and ultimately reducing production costs and increasing production efficiency.

[0040] The positioning drive mechanism 3 is connected to the pneumatic conveying mechanism 2. The positioning drive mechanism 3 drives the pneumatic conveying mechanism 2 to move horizontally and vertically on the frame 1, adjusting the horizontal position and vertical height of the pneumatic conveying mechanism 2 above the belt conveyor. This adjusts the position of the pneumatic conveying mechanism 2 in adsorbing impurities in the tobacco material in both horizontal and vertical directions, improving the adsorption effect of the pneumatic conveying mechanism 2 on impurities in the tobacco material, and thus improving the effect of this device in removing impurities from the tobacco material.

[0041] In the tobacco processing industry, the tobacco material is conveyed by a belt conveyor, and impurities are removed using methods such as spectroscopy, air separation, and metal detection. However, these methods can only remove metals or impurities with large differences in quality from the tobacco material. Therefore, in subsequent processes, manual secondary impurity removal is required to further remove any remaining impurities from the tobacco material.

[0042] In practice, a manual sorting station is usually set up downstream of the belt conveyor. Workers sort the tobacco materials conveyed on the belt conveyor to remove any remaining debris. However, the working environment of the manual sorting station is poor (dust and noise are high), which can be harmful to the workers' health.

[0043] On the other hand, it leads to higher labor intensity for workers and lower efficiency of manual cleaning. In addition, during the cleaning process, the belt conveyor usually needs to be stopped to ensure the cleaning effect, which increases production costs and reduces production efficiency.

[0044] Since the previous processes have already used methods such as spectroscopy, air separation, and metal detection to remove metals or impurities with large quality differences from the tobacco material, this application uses a pneumatic conveying mechanism 2 to generate negative pressure to replace manual labor in further removing various impurities such as paper, fibers, and non-metallic foreign objects mixed in the tobacco material. This reduces the labor intensity of workers, improves the impurity removal efficiency, and thus reduces production costs and increases production efficiency.

[0045] In this embodiment, the frame 1 includes two support plates 11 disposed on both sides, and a crossbeam 12 connecting the two support plates 11. The two support plates 11 are fixedly connected to the two side plates of the belt conveyor, and the positioning drive mechanism 3 is disposed on the crossbeam 12. In this application, the frame 1 includes two support plates 11 and a crossbeam 12. The two support plates 11 are disposed on both sides and fixedly connected to the two side plates of the belt conveyor, and the two ends of the crossbeam 12 are fixedly connected to the two support plates 11, so that the crossbeam 12 spans across the top of the belt conveyor.

[0046] The positioning drive mechanism 3 is mounted on the crossbeam 12. The positioning drive mechanism 3 moves horizontally and vertically on the crossbeam 12, thereby driving the pneumatic conveying mechanism 2 to move horizontally and vertically above the belt conveyor. This adjusts the horizontal position and vertical height of the pneumatic conveying mechanism 2 above the belt conveyor, thereby improving the adsorption effect of the pneumatic conveying mechanism 2 on impurities in the tobacco material and thus improving the effect of this device in removing impurities from the tobacco material.

[0047] In this embodiment, the frame 1 also includes a receiving mechanism 13 located below the crossbeam 12. The discharge end of the pneumatic conveying mechanism 2 is connected to the receiving mechanism 13, and the feed end extends downward. When the pneumatic conveying mechanism 2 generates negative pressure, the feed end adsorbs the impurities in the tobacco material, and the discharge end transports the adsorbed tobacco impurities to the receiving mechanism 13. The receiving mechanism 13 is used to store the tobacco impurities.

[0048] In this application, the frame 1 also includes a receiving mechanism 13, which is located below the crossbeam 12. The discharge end of the pneumatic conveying mechanism 2 is connected to the receiving mechanism 13, thereby connecting the pneumatic conveying mechanism 2 to the frame 1. The feed end of the pneumatic conveying mechanism 2 extends downward, and during the conveying of tobacco materials by the belt conveyor, the feed end of the pneumatic conveying mechanism 2 is located directly above the tobacco materials.

[0049] When the tobacco material passes through the feed end of the pneumatic conveying mechanism 2, the negative pressure generated at the feed end of the pneumatic conveying mechanism 2 adsorbs impurities in the tobacco material, thereby removing impurities. After the feed end of the pneumatic conveying mechanism 2 adsorbs the impurities in the tobacco material, the adsorbed impurities are conveyed through the discharge end of the pneumatic conveying mechanism 2 to the receiving mechanism 13. The receiving mechanism 13 stores the impurities removed from the tobacco material, preventing impurities from clogging the pneumatic conveying mechanism 2, thereby improving the working efficiency of the device and thus improving production efficiency.

[0050] Specifically, in this embodiment, the receiving mechanism 13 includes a receiving plate 131 and a first connecting frame 132 that fixes both ends of the receiving plate 131 to two support plates 11 respectively. A receiving groove 1311 with a top opening is formed in the receiving plate 131. The receiving groove 1311 is used to store tobacco debris conveyed by the discharge end of the pneumatic conveying mechanism 2.

[0051] In this application, the receiving mechanism 13 includes a receiving plate 131 and a first connecting frame 132. The first connecting frame 132 fixes the two ends of the receiving plate 131 to two support plates 11 respectively, so that the receiving plate 131 extends between the two support plates 11 and is located below the crossbeam 12.

[0052] A receiving trough 1311 is formed in the receiving plate 131. The top of the receiving trough 1311 is open, so that the discharge end of the pneumatic conveying mechanism 2 will transport the adsorbed debris to the receiving trough 1311 through the top opening of the receiving trough 1311. The debris is then stored in the receiving trough 1311 to prevent the debris from clogging in the pneumatic conveying mechanism 2 and to improve the working efficiency of the device.

[0053] In this embodiment, the pneumatic conveying mechanism 2 includes a conveying pipe 21 with the discharge end connected to the receiving mechanism 13 and the inlet end extending downward, and a negative pressure device 22 disposed on the conveying pipe 21. The negative pressure device 22 is used to generate negative pressure in the conveying pipe 21. The inlet end of the conveying pipe 21 adsorbs impurities in the tobacco material, and the discharge end conveys the adsorbed tobacco impurities to the receiving mechanism 13.

[0054] In this application, the pneumatic conveying mechanism 2 includes a conveying pipe 21 and a negative pressure device 22. The discharge end of the conveying pipe 21 is connected to the receiving plate 131, the feed pipe 211 extends downward, and the negative pressure device 22 is disposed on the conveying pipe 21, thereby generating negative pressure in the conveying pipe 21 when the negative pressure device 22 is activated.

[0055] When the tobacco material passes through the feed end of the conveying pipe 21, the feed end of the conveying pipe 21 adsorbs the impurities in the tobacco material. After the adsorbed impurities flow through the conveying pipe 21, they are transported from the discharge end of the conveying pipe 21 to the receiving trough 1311 of the receiving plate 131. The impurities are stored in the receiving trough 1311 to prevent them from clogging the conveying pipe 21, thereby improving the working efficiency of the device and thus improving production efficiency.

[0056] Specifically, in this embodiment, the conveying pipe 21 includes a feed pipe 211 forming a feed end, a discharge pipe 212 forming a discharge end, and a flexible hose 213 connecting the feed pipe 211 and the discharge pipe 212. A negative pressure device 22 is provided on the feed pipe 211, and a positioning drive mechanism 3 is connected to the feed pipe 211 to drive the feed pipe 211 to move in the horizontal and vertical directions.

[0057] In this application, the conveying pipe 21 includes an inlet pipe 211, an outlet pipe 212, and a flexible hose 213. The inlet pipe 211 forms the inlet end of the conveying pipe 21 and extends downward. When the belt conveyor conveys the tobacco material, the inlet pipe 211 is located directly above the tobacco material.

[0058] The discharge pipe 212 forms the discharge end of the conveying pipe 21, and the receiving plate 131 is fixedly connected to realize the connection between the conveying pipe 21 and the frame 1. The flexible hose 213 connects the feed pipe 211 and the discharge pipe 212 after being bent, thereby extending the length of the conveying pipe 21 and reducing its space occupation, making the arrangement of this device on the belt conveyor more flexible.

[0059] The negative pressure device 22 is installed on the feed pipe 211. When the tobacco material conveyed by the belt conveyor passes under the feed pipe 211, the negative pressure device 22 generates a negative pressure, which causes the inlet of the feed pipe 211 to adsorb the impurities in the tobacco material. The adsorbed impurities pass through the flexible hose 213 and are then transported through the discharge pipe 212 to the receiving trough 1311 of the receiving plate 131, so that the receiving trough 1311 stores the impurities.

[0060] The positioning drive mechanism 3 is connected to the feed pipe 211, thereby moving on the crossbeam 12 in both horizontal and vertical directions, driving the feed pipe 211 to move in both horizontal and vertical directions above the belt conveyor. At this time, since the feed pipe 211 and the discharge pipe 212 are connected by a flexible hose 213, the discharge pipe 212, which is fixedly connected to the receiving plate 131, remains in a fixed state due to the deformation of the flexible hose.

[0061] By moving the feed pipe 211 horizontally and vertically above the belt conveyor, the position of the feed pipe 211 in the horizontal and vertical directions is adjusted to adsorb impurities in the tobacco material, thereby improving the adsorption effect of the pneumatic conveying mechanism 2 on impurities in the tobacco material, and thus improving the effect of the device in removing impurities from the tobacco material.

[0062] Specifically, in actual implementation, when this device is installed on a belt conveyor for inclined conveying of tobacco materials, the inlet of the feed pipe 211 can be set as an inclined structure, so that the inlet of the feed pipe 211 can better fit with the tobacco materials conveyed by the belt conveyor, preventing the tobacco materials from accumulating at the inlet of the feed pipe 211, thereby improving the adsorption effect of the pneumatic conveying mechanism 2 on impurities in the tobacco materials and ensuring the normal conveying of tobacco materials.

[0063] In this embodiment, the pneumatic conveying mechanism 2 further includes a second connecting frame 23 fixedly connected to the receiving mechanism 13, and a pressure ring 24 disposed on the second connecting frame 23. The pressure ring 24 is sleeved on the outside of the discharge pipe 212 to fix the discharge pipe 212 on the second connecting frame 23.

[0064] In this application, the pneumatic conveying mechanism 2 also includes a second connecting frame 23 and a pressure ring 24. The second connecting frame 23 is fixedly connected to the receiving plate 131, and the pressure ring 24 is disposed on the second connecting frame 23. Thus, by sleeved on the outside of the discharge pipe 212, the discharge pipe 212 is fixed on the second connecting frame 23, thereby realizing the fixed connection between the discharge end of the pneumatic conveying mechanism 2 and the frame 1.

[0065] In this application, when the discharge pipe 212 is fixed on the second connecting frame 23 by the pressure ring 24, its outlet faces the receiving groove 1311 of the receiving plate 131. Thus, after the impurities in the tobacco material are adsorbed at the inlet of the feed pipe 211, the impurities flow sequentially through the flexible hose 213 and the discharge pipe 212, and are transported to the receiving groove 1311 of the receiving plate 131 through the outlet of the discharge pipe 212, so that the receiving groove 1311 stores the impurities removed from the tobacco material.

[0066] In this embodiment, the positioning drive mechanism 3 includes a horizontal moving component 31 disposed on the crossbeam 12 and a vertical moving component 32 disposed on the horizontal moving component 31. The vertical moving component 32 is connected to the pneumatic conveying mechanism 2. During the horizontal movement of the horizontal moving component 31 on the crossbeam 12, it drives the vertical moving component 32 and the pneumatic conveying mechanism 2 to move in the horizontal direction. During the vertical movement of the vertical moving component 32 on the horizontal moving component 31, it drives the pneumatic conveying mechanism 2 to move in the vertical direction.

[0067] In this application, the positioning drive mechanism 3 includes a horizontal moving component 31 and a vertical moving component 32. The horizontal moving component 31 is disposed on the crossbeam 12, and the vertical moving component 32 is disposed on the horizontal moving component 31 and is fixedly connected to the feed pipe 211 of the pneumatic conveying mechanism 2.

[0068] When the horizontal moving component 31 moves horizontally on the crossbeam 12, it drives the vertical moving component 32 and the feed pipe 211 to move horizontally, thereby adjusting the position of the feed pipe 211 in the horizontal direction; when the vertical moving component 32 moves vertically on the horizontal moving component 31, it drives the feed pipe 211 to move vertically, thereby adjusting the position of the feed pipe 211 in the vertical direction, thereby improving the adsorption effect of the pneumatic conveying mechanism 2 on impurities in the tobacco material.

[0069] Specifically, in this embodiment, a first slide rail 121 is provided on the crossbeam 12 along the axial direction. The horizontal moving component 31 includes a first slider 311 that is slidably connected to the first slide rail 121, and a first servo motor 312 provided on the crossbeam 12. The first servo motor 312 is used to drive the first slider 311 to move horizontally on the first slide rail 121. The vertical moving component 32 is connected to the first slider 311.

[0070] In this application, the crossbeam 12 is provided with a first slide rail 121 along the axial direction, the horizontal moving component 31 includes a first slider 311 and a first servo motor 312, wherein the first slider 311 is slidably connected to the first slide rail 121, the first servo motor 312 is provided on the crossbeam 12, and the vertical moving component 32 is fixedly connected to the first slider 311.

[0071] When the first servo motor 312 drives the first slider 311 to move back and forth along the first slide rail 121, it drives the vertical moving component 32 and the feed pipe 211 to move in the horizontal direction, thereby adjusting the adsorption position of the feed pipe 211 on the tobacco material in the horizontal direction, thereby improving the adsorption effect of the pneumatic conveying mechanism 2 on the tobacco material, and thus improving the effect of the device in removing impurities from the tobacco material.

[0072] Specifically, in this embodiment, the vertical moving component 32 includes a second slide rail 321 fixedly connected to the horizontal moving component 31, a second slider 322 slidably connected to the second slide rail 321, and a second servo motor 323 disposed on the second slide rail 321. The second slide rail 321 is arranged in the vertical direction, the second slider 322 is connected to the pneumatic conveying mechanism 2, and the second servo motor 323 is used to drive the second slider 322 to move vertically on the second slide rail 321.

[0073] In this application, the vertical moving component 32 includes a second slide rail 321, a second slider 322, and a second servo motor 323. The second slide rail 321 is fixedly connected to the first slider 311 and is arranged in the vertical direction. The second slider 322 is slidably connected to the second slide rail 321 and is fixedly connected to the feed pipe 211. The second servo motor 323 is disposed on the second slide rail 321.

[0074] The second servo motor 323 drives the second slider 322 to move back and forth on the second slide rail 321. When the feed pipe 211 moves vertically, the height of the feed pipe 211 above the belt conveyor is adjusted, thereby adjusting the position of the feed pipe 211 in the vertical direction to adsorb impurities in the tobacco material. This improves the adsorption effect of the pneumatic conveying mechanism 2 on impurities in the tobacco material, and thus improves the effect of this device in removing impurities from the tobacco material.

[0075] The above-described contents can be implemented individually or in various combinations, and these variations are all within the protection scope of this invention.

[0076] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tobacco impurity removal device, characterized in that: The device includes a frame (1) mounted on a belt conveyor, a pneumatic conveying mechanism (2) mounted on the frame (1), and a positioning drive mechanism (3) mounted on the frame (1). The frame (1) is used to mount the pneumatic conveying mechanism (2) above the belt conveyor. The positioning drive mechanism (3) is connected to the pneumatic conveying mechanism (2) and is used to drive the pneumatic conveying mechanism (2) to move in the horizontal and vertical directions. The pneumatic conveying mechanism (2) generates negative pressure to adsorb impurities in the tobacco material during the conveying process of the belt conveyor.

2. The tobacco impurity removal device as described in claim 1, characterized in that: The frame (1) includes two support plates (11) on both sides and a crossbeam (12) connecting the two support plates (11). The two support plates (11) are fixedly connected to the two side plates of the belt conveyor. The positioning drive mechanism (3) is located on the crossbeam (12).

3. The tobacco impurity removal device as described in claim 2, characterized in that: The frame (1) also includes a receiving mechanism (13) located below the crossbeam (12). The discharge end of the pneumatic conveying mechanism (2) is connected to the receiving mechanism (13), and the feed end extends downward. When the pneumatic conveying mechanism (2) generates negative pressure, the feed end adsorbs the impurities in the tobacco material, and the discharge end transports the adsorbed tobacco impurities to the receiving mechanism (13). The receiving mechanism (13) is used to store the tobacco impurities.

4. The tobacco impurity removal device as described in claim 3, characterized in that: The receiving mechanism (13) includes a receiving plate (131) and a first connecting frame (132) that fixes the two ends of the receiving plate (131) to the two support plates (11) respectively. A receiving groove (1311) with a top opening is formed in the receiving plate (131). The receiving groove (1311) is used to store the tobacco debris conveyed by the discharge end of the pneumatic conveying mechanism (2).

5. The tobacco impurity removal device as described in claim 3, characterized in that: The pneumatic conveying mechanism (2) includes a conveying pipe (21) with the discharge end connected to the receiving mechanism (13) and the inlet end extending downward, and a negative pressure device (22) provided on the conveying pipe (21). The negative pressure device (22) is used to generate negative pressure in the conveying pipe (21). The inlet end of the conveying pipe (21) adsorbs impurities in the tobacco material, and the discharge end conveys the adsorbed tobacco impurities to the receiving mechanism (13).

6. The tobacco impurity removal device as described in claim 5, characterized in that: The conveying pipe (21) includes a feed pipe (211) forming a feed end, a discharge pipe (212) forming a discharge end, and a flexible hose (213) connecting the feed pipe (211) and the discharge pipe (212). The negative pressure device (22) is provided on the feed pipe (211), and the positioning drive mechanism (3) is connected to the feed pipe (211) to drive the feed pipe (211) to move in the horizontal and vertical directions.

7. A tobacco impurity removal device as described in claim 6, characterized in that: The pneumatic conveying mechanism (2) further includes a second connecting frame (23) fixedly connected to the receiving mechanism (13), and a pressure ring (24) provided on the second connecting frame (23). The pressure ring (24) is sleeved on the outside of the discharge pipe (212) to fix the discharge pipe (212) on the second connecting frame (23).

8. A tobacco impurity removal device as described in claim 2, characterized in that: The positioning drive mechanism (3) includes a horizontal moving component (31) disposed on the crossbeam (12) and a vertical moving component (32) disposed on the horizontal moving component (31). The vertical moving component (32) is connected to the pneumatic conveying mechanism (2). During the horizontal movement of the horizontal moving component (31) on the crossbeam (12), the vertical moving component (32) and the pneumatic conveying mechanism (2) are driven to move in the horizontal direction. During the vertical movement of the vertical moving component (32) on the horizontal moving component (31), the pneumatic conveying mechanism (2) is driven to move in the vertical direction.

9. A tobacco impurity removal device as described in claim 8, characterized in that: The crossbeam (12) is provided with a first slide rail (121) along the axial direction. The horizontal moving component (31) includes a first slider (311) slidably connected to the first slide rail (121) and a first servo motor (312) provided on the crossbeam (12). The first servo motor (312) is used to drive the first slider (311) to move horizontally on the first slide rail (121). The vertical moving component (32) is connected to the first slider (311).

10. A tobacco impurity removal device as described in claim 8, characterized in that: The vertical moving component (32) includes a second slide rail (321) fixedly connected to the horizontal moving component (31), a second slider (322) slidably connected to the second slide rail (321), and a second servo motor (323) disposed on the second slide rail (321). The second slide rail (321) is arranged in the vertical direction, the second slider (322) is connected to the pneumatic conveying mechanism (2), and the second servo motor (323) is used to drive the second slider (322) to move vertically on the second slide rail (321).

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