A device for removing impurities

Abstract

The application discloses a kind of impurity removal devices, be equipped with in the conveying belt of tobacco conveying, two groups of magnetic attraction components are separately arranged, first group is used to remove the impurity in tobacco, second group is used to clean first group, two groups of magnetic attraction components are used in cooperation, can automatically, continuously carry out impurity removal work;The device includes first adsorption component and second adsorption component, first adsorption component is arranged in parallel above the conveying belt, second adsorption component is arranged in parallel above first adsorption component, first adsorption component is used to adsorb the magnetic impurity in tobacco conveyed by conveying belt, second adsorption component is used to adsorb the magnetic impurity on first adsorption component, so that first adsorption component continuously adsorbs the magnetic impurity in tobacco conveyed by conveying belt.The device can automatically, continuously carry out impurity removal work, improve the process quality of tobacco, while reducing the redundant production process, improve production efficiency.

Description

Technical Field

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

[0002] Tobacco shreds refer to tobacco products made by cutting tobacco leaves into shreds, granules, flakes, powder, or other shapes, adding auxiliary materials, and then fermenting and storing them. These products are ready for sale and consumption without being rolled. During the production of tobacco shreds, the cutting tools often wear down. Magnetic metal fragments generated by this wear can get mixed into the tobacco shreds during cutting, affecting the overall quality. Therefore, it is necessary to remove these metal impurities.

[0003] In existing technologies, the use of tobacco magnetic impurity removal devices generally requires transporting the tobacco to a separate impurity removal device for metal removal (mostly magnetic metals) before transferring the tobacco to the next processing step. This directly and significantly reduces the continuity between existing processes and workflows, resulting in a decrease in overall production efficiency. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a purification device, which is installed on the conveyor belt transporting tobacco shreds. It comprises two sets of magnetic suction components: the first set removes impurities from the tobacco shreds, and the second set cleans the first set. The two sets of magnetic suction components work together to automatically and continuously perform purification, improving the quality of the tobacco shreds, reducing unnecessary production steps, and increasing production efficiency. Furthermore, the addition of a vibration component further disperses the tobacco shreds on the conveyor belt, resulting in even better purification. Therefore, this invention effectively solves the problems of insufficient purification effect, inability to operate continuously, and decreased production efficiency caused by additional transfer steps in existing purification equipment.

[0005] The technical solution to the problem of this invention is to provide a purification device, which is installed above a conveyor belt to adsorb impurities in the tobacco shreds conveyed by the conveyor belt. The device includes a first adsorption component and a second adsorption element. The first adsorption component is arranged parallel above the conveyor belt and operates synchronously with the conveyor belt. The second adsorption element is fixed parallel above the first adsorption component. The first adsorption component is used to adsorb magnetic impurities in the tobacco shreds conveyed by the conveyor belt, and the second adsorption element is used to adsorb magnetic impurities on the first adsorption component, so that the first adsorption component continuously adsorbs magnetic impurities in the tobacco shreds conveyed by the conveyor belt.

[0006] Optionally, the distance between the lower surface of the first adsorption component and the conveyor belt should be such that it does not touch the tobacco shreds, but can adsorb magnetic metal impurities in the tobacco shreds on the conveyor belt.

[0007] It is understood that magnetic metal impurities include ferromagnetic materials such as iron, cobalt, and nickel, as well as artificially synthesized composite ferromagnetic materials. The impurities to be removed in this application are mainly metallic iron.

[0008] Preferably, the conveyor belt is mounted on a fixed frame, with symmetrical side plates on both sides of the conveyor belt. A vibration component is provided at the bottom of the conveyor belt to drive the conveyor belt to perform reciprocating radial motion, thereby dispersing the tobacco shreds on the conveyor belt and keeping them flat, which facilitates the adsorption of magnetic metal impurities in the tobacco shreds by the first adsorption component. The vibration component includes a sliding rod, a positioning rod, a fixed plate, and a driving component. The fixed plate is mounted in the middle of the two side plates of the conveyor belt, and the driving component is mounted on the fixed plate. Two positioning rods are symmetrically mounted laterally on the two side plates with the fixed plate as the axis of symmetry. Sliding grooves are provided on the two positioning rods. The two sliding rods are fixed on the fixed frame and slide in contact with the two positioning rods. The positioning rods can slide left and right along the direction of the sliding rods.

[0009] Optionally, the driving component can be a stepper motor or a drive motor, which can drive the conveyor belt to move back and forth in the left and right directions. The stroke can be adjusted.

[0010] Preferably, the first adsorption component is arranged parallel to and in the same direction as the conveyor belt.

[0011] Preferably, the first adsorption component operates in the same cyclic mode as the conveyor belt, and runs synchronously and in the same direction as the conveyor belt.

[0012] Furthermore, the magnetic attraction force of the first adsorption component is less than that of the second adsorption component.

[0013] Optionally, the first adsorption component and the second adsorption element can be permanent magnets or electromagnets, as long as they can adsorb magnetic metal impurities. When the first adsorption element with magnetic metal impurities on its surface is transported by the conveyor belt to directly below the second adsorption element, the magnetic attraction force of the first adsorption element facing the second adsorption element is much smaller than the magnetic attraction force of the second adsorption element.

[0014] Preferably, both the first adsorption component and the second adsorption element are electromagnets; when the first adsorption component is transported to the bottom of the second adsorption element, the magnetic attraction circuit of the adsorption area of ​​the first adsorption component facing the second adsorption element is disconnected, so that the second adsorption element can adsorb magnetic metal impurities on the first adsorption component.

[0015] Preferably, the distance between the first adsorption component and the conveyor belt is set as close as possible without restricting the transport of tobacco shreds; without affecting the normal operation of the conveyor belt, the second adsorption component is set close to the conveyor belt, which facilitates the adsorption of impurities on the first adsorption component by the second adsorption component, resulting in a better cleaning effect. The second adsorption component does not directly adsorb magnetic metal impurities on the conveyor belt.

[0016] Furthermore, the first adsorption assembly includes a conductive component, a first adsorption element, and a conveyor belt. The conveyor belt is provided with multiple first adsorption elements, and conductive components are respectively provided at both ends of the first adsorption elements.

[0017] Preferably, the width of the first adsorption element can be adjusted based on the diameter of the rotating shaft of the conveyor belt, and is generally smaller than the diameter of the rotating shaft to prevent the conveyor belt from getting stuck or slipping.

[0018] Preferably, the length of the conveyor belt is shorter than that of the conveyor belt, so that the overall structure of the first adsorption component and the conveyor belt is trapezoidal, ensuring the stability of the overall structure of the two.

[0019] Furthermore, a support frame is provided between the conveyor belt and the transport belt, and the support frame is erected and fixed on both sides of the conveyor belt.

[0020] Furthermore, the support frame includes a mounting plate and legs, with two legs symmetrically arranged on both sides of the conveyor belt, and a mounting plate at the upper end of the legs; the conveyor belt is mounted between the two symmetrically arranged mounting plates; the running direction of the conveyor belt is the same as that of the conveyor belt.

[0021] Preferably, the support leg on the left side of the conveyor belt includes two identical brackets, which are triangular in shape with the conveyor belt. The two brackets fixed on the left side of the conveyor belt are respectively located at both ends of the mounting plate; the two support legs on the right side of the conveyor belt have the same structure.

[0022] Furthermore, a transmission assembly is provided between the conveyor belt and the first adsorption component. The transmission assembly includes a first rotating shaft, a second rotating shaft, and a transmission belt. The first rotating shaft is the driven shaft of the conveyor belt, and the second rotating shaft is the driving shaft of the conveyor belt. The first rotating shaft and the second rotating shaft are connected by the transmission belt, so that the conveyor belt can run synchronously with the conveyor belt. The transmission belt is located on the outside of the mounting plate.

[0023] Optionally, the drive shaft of the conveyor belt can be equipped with a drive motor or stepper motor, which can drive the drive shaft of the conveyor belt to rotate.

[0024] Preferably, the first rotating shaft and the second rotating shaft are located on the same side, and the transmission belt is sleeved on the ends of the first rotating shaft and the second rotating shaft located on the same side.

[0025] Furthermore, the conductive component includes a conductive sheet and a conductive assembly. The inner sidewall of the mounting plate is provided with an annular mounting groove along the running track of the conveyor belt. The conductive sheet is laid in the mounting groove along the direction of the mounting groove. A conductive assembly is mounted between the conveyor belt and the mounting groove. The conductive assembly and the conductive sheet slide in contact and conduct electricity.

[0026] Furthermore, the conductive component includes a conductive element and a mounting base. The mounting base is provided on the conveyor belt. One end of the conductive element is fixedly connected to the mounting base, and the other end is inserted into the mounting groove and makes sliding contact with the conductive sheet in the mounting groove to conduct electricity.

[0027] Preferably, the mounting base includes a first base, a second base, a positioning post, and an elastic element. One end of the conductive element is fixedly connected to the first base, and the other end is inserted into the mounting groove and makes sliding contact with the conductive sheet in the mounting groove to conduct electricity. The positioning post is provided at the bottom of the first base, and a positioning hole is opened at the upper end of the second base. The elastic element is located in the positioning hole, and the positioning post is slidably connected to the second base through the positioning hole. The elastic element is always in a state of being compressed by the positioning post.

[0028] Preferably, one side of the positioning post is provided with an axial limiting surface, and an abutment surface corresponding to the limiting surface is opened in the positioning hole, and the limiting surface and the abutment surface slide together.

[0029] Optionally, the elastic element can be a spring or tension spring, which allows the positioning pin to extend and retract axially within the positioning hole and reset itself.

[0030] Furthermore, the conductive components on both sides of the conveyor belt are electrically connected to the positive and negative poles of the first adsorption component, respectively; when the two conductive components at both ends of the first adsorption component simultaneously contact and conduct with the conductive sheets in the mounting plates on both sides of the conveyor belt, the magnetic attraction circuit of the first adsorption component is activated.

[0031] Optionally, the conductive component located in the mounting groove can be above the conductive sheet, in which case a tension spring can be used as the elastic component; or it can be below the conductive sheet, in which case a spring can be used as the elastic component; as long as it can make contact with the conductive sheet and conduct electricity.

[0032] Preferably, the contact points between the conductive element and the conductive sheet are provided with sliding cross-sections to increase the contact area between the conductive element and the conductive sheet, making the conduction of the magnetic attraction circuit more stable.

[0033] Furthermore, a demagnetizing notch is provided on the upper side of the conductive sheet, with both ends of the demagnetizing notch located on both sides of the second adsorption element, and the end faces of both ends of the demagnetizing notch are inclined surfaces; when the conductive element moves to the demagnetizing notch, the sliding contact between the conductive element and the conductive sheet is broken, and the magnetic attraction circuit of the first adsorption element is broken.

[0034] Preferably, the second adsorption element is located at the midpoint of the demagnetization notch, and the range of the demagnetization notch is larger than the size of the second adsorption element.

[0035] Optionally, when the conductive component in the mounting groove is above the conductive sheet, the left end of the demagnetizing notch is inclined downwards, and the right end is symmetrical to it; when the conductive component in the mounting groove is below the conductive sheet, the left end of the demagnetizing notch is inclined upwards, and the right end is symmetrical to it; this facilitates the sliding operation of the conductive component.

[0036] The beneficial effects of this invention are as follows:

[0037] This invention discloses a purification device, which is installed on the conveyor belt transporting sheared tobacco shreds. It automatically removes magnetic metal impurities from the tobacco shreds before they enter the next process. The device consists of two sets of magnetic suction components. The first set is used to remove impurities from the tobacco shreds, and the second set is used to clean the first set. The two sets of magnetic suction components work together to automatically and continuously perform purification operations, improving the quality of the tobacco shreds, reducing unnecessary production steps, and increasing production efficiency. When cleaning or replacing the second set of magnetic suction components, there is no need to stop the first set, and the first set can continue to remove impurities. Attached Figure Description

[0038] 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. The drawings described below are some embodiments of the invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0039] Figure 1 This is a structural diagram of the impurity removal device;

[0040] Figure 2 for Figure 1 Enlarged view of section A;

[0041] Figure 3 This is a structural diagram of the fixing frame;

[0042] Figure 4 This is a structural diagram of the vibration assembly;

[0043] Figure 5 This is a structural diagram of the inner wall of the support frame;

[0044] Figure 6 for Figure 5 Enlarged view of section B.

[0045] In the diagram: 1. Conveyor belt; 2. Support frame; 21. Mounting plate; 22. Support leg; 3. Transmission assembly; 31. First rotating shaft; 32. Second rotating shaft; 33. Transmission belt; 4. Vibration assembly; 41. Sliding rod; 42. Positioning rod; 43. Fixing plate; 44. Driving component; 5. First adsorption assembly; 51. Conductive assembly; 511. Conductive sheet; 512. Conductive assembly; 513. Conductive component; 514. Mounting seat; 515. First seat; 516. Second seat; 517. Positioning post; 518. Elastic component; 519. Limiting cut surface; 52. First adsorption component; 53. Conveyor belt; 6. Second adsorption component; 7. Mounting cover; 71. Mounting top plate; 72. Mounting side plate; 721. First side plate; 722. Second side plate; 8. Fixing frame. Detailed Implementation

[0046] 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. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0047] In view of the above problems, the present invention proposes a purification device for use in the production process of purifying tobacco shreds. It aims to solve the problems of insufficient purification effect, inability to operate continuously, and reduced production efficiency caused by additional transfer steps in existing purification equipment. The device of this application can be installed on the conveyor belt for transporting tobacco shreds. By utilizing the cooperation between two sets of magnetic suction components, it can automatically and continuously remove magnetic metal impurities from tobacco shreds.

[0048] Please refer to the specific embodiments of this application. Figure 1-5 :

[0049] A purification device is installed above a conveyor belt 1 to adsorb impurities in the tobacco shreds conveyed by the conveyor belt 1. The purification device of this application includes a first adsorption component 5 and a second adsorption element 6. The first adsorption component 5 is arranged parallel above the conveyor belt 1 and runs synchronously with the conveyor belt 1. The second adsorption element 6 is fixed parallel above the first adsorption component 5. The first adsorption component 5 is used to adsorb magnetic impurities in the tobacco shreds conveyed by the conveyor belt 1, and the second adsorption element 6 is used to adsorb magnetic impurities on the first adsorption component 5, so that the first adsorption component 5 continuously adsorbs magnetic impurities in the tobacco shreds conveyed by the conveyor belt 1.

[0050] The impurity removal device of this application is installed on the conveyor belt 1 for transporting tobacco. The first adsorption component 5 is disposed above the conveyor belt 1, and its running direction is consistent with the conveyor belt 1. It is used to adsorb magnetic metal impurities in the tobacco on the conveyor belt 1. A second adsorption element 6 is disposed parallel above the first adsorption component 5 to adsorb magnetic metal impurities on the first adsorption component 5. The first adsorption component 5 also includes a conductive component 51, a first adsorption element 52, and a conveyor belt 53. The conveyor belt 53 is provided with the first adsorption element 52 and the conductive component 51. The conductive component 51 is used to control the magnetic attraction of the first adsorption element 52. The circuit is turned on or off; when the conveyor belt 53 transports the first adsorption component 52 with magnetic metal impurities on its surface to the second adsorption component 6, the connecting component 51 disconnects the magnetic attraction circuit of the first adsorption component 52, so that the second adsorption component 6 can adsorb the impurities on the first adsorption component 5 to the surface of the second adsorption component 6; the conveyor belt 53 transports the cleaned first adsorption component 52 back to the conveyor belt 1, and at the same time the connecting component 51 turns on the magnetic attraction circuit of the first adsorption component 52, and the impurity removal work is carried out in a cycle; the conveyor belt 53 is driven by the conveyor belt 1 through the transmission component 3.

[0051] It is understood that magnetic metal impurities include ferromagnetic materials such as iron, cobalt, and nickel, as well as artificially synthesized composite ferromagnetic materials. The impurities to be removed in this application are mainly metallic iron.

[0052] For specific embodiments of this application, please refer to Figure 1 The transmission assembly 3 includes a first rotating shaft 31, a second rotating shaft 32, and a transmission belt 33. A drive unit is installed on the shaft end of the drive shaft of the conveyor belt 1. The drive unit drives the drive shaft of the conveyor belt 1 to rotate, thereby driving the first rotating shaft 31 to rotate. The first rotating shaft 31 causes the second rotating shaft 32 to rotate through the transmission belt 33 sleeved on the shaft end of the first rotating shaft 31 and the shaft end of the second rotating shaft 32, so that the conveyor belt 53 can run synchronously with the conveyor belt 1, that is, when the conveyor belt 1 runs, the conveyor belt 53 also runs together.

[0053] Understandably, the drive unit is a drive motor or stepper motor, which can drive the drive shaft of the conveyor belt to rotate.

[0054] In practical applications, when tobacco shreds fall onto the conveyor belt 1 and accumulate, they often accumulate, which means that some of the magnetic metal impurities that are pressed at the bottom cannot be adsorbed by the first adsorption component 5.

[0055] Based on the problems encountered in practical applications, a vibration component 4 can be provided in the specific embodiments of this application to drive the conveyor belt 1 to perform reciprocating left-right movements, so that the tobacco shreds are more evenly distributed on the conveyor belt 1 and spread out evenly. For the specific structure of the vibration component 4, please refer to [link to specific details]. Figure 3 and Figure 4 :

[0056] Specifically, the conveyor belt 1 can be mounted on the fixed frame 8. Side plates are symmetrically arranged on both sides of the conveyor belt 1. The bottom of the conveyor belt 1 is provided with a vibration component 4 to drive the conveyor belt 1 to reciprocate in the horizontal direction, so that the tobacco on the conveyor belt 1 shakes and disperses, and is evenly spread out, which is convenient for the first adsorption component 5 to adsorb magnetic metal impurities in the tobacco.

[0057] In one specific embodiment, the vibration assembly 4 includes a sliding rod 41, a positioning rod 42, a fixing plate 43, and a driving member 44. The fixing plate 43 is mounted on the middle of the two side plates of the conveyor belt 1, and the driving member 44 is mounted on the fixing plate 43. The two positioning rods 42 are symmetrically mounted on the two side plates of the conveyor belt 1 with the fixing plate 43 as the axis of symmetry. Sliding grooves are opened on the two positioning rods 42. The two sliding rods 41 are fixed on the fixing frame 8 and slide in contact with the two positioning rods 42. The positioning rods 42 can slide left and right along the direction of the sliding rods 41.

[0058] Understandably, the driving component 44 can be a stepper motor or a drive motor, which can drive the conveyor belt 1 to make reciprocating left and right movements.

[0059] In practical applications, if the first adsorption element 52 is too wide, although the adsorption area is large, it may cause the conveyor belt 53 to get stuck or slip. When the first adsorption element 52 turns, some magnetic metal impurities may fall off. If a soft magnet is used, when the first adsorption element 52 turns, due to the change in its own shape caused by stretching, some magnetic metal impurities may also fall off. However, if the first adsorption element 52 is too narrow, the impurity removal effect will be reduced. If more first adsorption elements 52 are laid on the conveyor belt 53 to improve the impurity removal effect, the cost will increase accordingly. The width of the first adsorption element 52 can be adaptively adjusted according to the diameter of the rotating shaft of the conveyor belt 53, and a moderate width is sufficient.

[0060] Based on the above issues, please refer to Figure 1 :

[0061] For example, the first adsorption element 52 is a magnet of moderate width. Specifically, the width can be set to be slightly narrower than the diameter of the second rotating shaft 32, and multiple identical first adsorption elements 52 are laid on the outer surface of the conveyor belt 53. This ensures that when the impurity removal device of this application is working automatically in a cycle, some of the first adsorption elements 52 are always facing the conveyor belt 1, so that the magnetic metal impurities in the tobacco on the conveyor belt 1 are adsorbed onto the first adsorption elements 52 on the lower surface of the conveyor belt 53. The moderately wide first adsorption elements 52 will not cause the conveyor belt 53 to get stuck or slip, nor will they increase the cost by laying too many magnets due to the magnet width being too narrow.

[0062] In practical applications, if the first adsorption element 52 operates for too long, more and more magnetic metal impurities will adhere to its surface, resulting in a decrease in the magnetic attraction effect of the first adsorption element 52 on the magnetic metal impurities in the tobacco and a worsening of the impurity removal effect. Therefore, it is necessary to constantly disassemble, replace, and clean the first adsorption element 52. However, frequent replacement of the first adsorption element 52 will increase labor costs and affect production efficiency, resulting in a slowdown in the overall production progress and a significant reduction in efficiency.

[0063] Therefore, in a specific embodiment of this application, a second adsorption element 6 is added, which is arranged parallel above the first adsorption component 5 to adsorb and transfer magnetic metal impurities on the first adsorption component 5, so that the first adsorption element 52 can be recycled, and the cleaning and adsorption effect of the first adsorption element 52 on the conveyor belt 1 can always exist. While the second adsorption element 6 cleans the first adsorption component 5, it does not affect the adsorption of magnetic metal impurities in the tobacco on the conveyor belt 1 by the first adsorption component 5.

[0064] In practical applications, the second adsorption component 6 can be cleaned periodically, while the first adsorption component 5 can run continuously, improving work efficiency.

[0065] Please see Figure 1 In a specific embodiment of this application, a second adsorption element 6 and a mounting cover 7 are added. The second adsorption element 6 is mounted above the first adsorption assembly 5 via the mounting cover 7. The mounting cover 7 is fixed in the middle of the mounting plate 21. The mounting cover 7 also includes a mounting top plate 71 and mounting side plates 72. The mounting top plate 71 is parallel to the conveyor belt 53. The two mounting side plates 72 are symmetrically arranged at the upper end of the mounting plate 21. The second adsorption element 6 is arranged on the inner side of the mounting top plate 71. The second adsorption element 6 is directly opposite the first adsorption element 52 above the conveyor belt 53 and is used to adsorb magnetic metal impurities on the first adsorption element 52 above the conveyor belt 53, thereby achieving the effect of cleaning the first adsorption element 52 and enabling the first adsorption element 52 to be recycled.

[0066] Specifically, the mounting side plate 72 is divided into a first side plate 721 and a second side plate 722. The first side plate 721 is inclined, and the second side plate 722 is perpendicular to the mounting plate 21. The two ends of the first side plate 721 are fixed to one end of the mounting top plate 71 and the top of the second side plate 722, respectively, so that the length of the second adsorption member 6 matches the width of the conveyor belt, saving raw materials while ensuring the cleaning effect.

[0067] In one embodiment, the second adsorption element 6 is detachably fixed to the mounting top plate 71. When there are too many impurities attached to the surface of the second adsorption element 6, the second adsorption element 6 can be removed from the mounting top plate 71, cleaned, and then reinstalled.

[0068] In another embodiment, the second adsorption element 6 is fixedly connected to the mounting top plate 71, and the mounting cover 7 is detachably fixed to the mounting plate 21. When there are too many impurities attached to the surface of the second adsorption element 6, the mounting cover 7 and the second adsorption element 6 can be removed together, the second adsorption element 6 can be cleaned, and then the mounting cover 7 and the second adsorption element 6 can be installed as a whole.

[0069] Since the impurities to be removed are magnetic metal impurities, both the first adsorption element 52 and the second adsorption element 6 should have magnetic attraction. Therefore, the first adsorption element 52 and the second adsorption element 6 should be electromagnets or permanent magnets.

[0070] In one implementation, both the first adsorption element 52 and the second adsorption element 6 are permanent magnets. The magnetic attraction force of the second adsorption element 6 is greater than that of the first adsorption element 52. However, since there is a certain distance between the second adsorption element 6 and the first adsorption component 5, the adsorption force of the second adsorption element 6 is reduced, so that some magnetic metal impurities cannot be adsorbed onto the surface of the second adsorption element 6, thus failing to achieve the ideal cleaning effect.

[0071] In another embodiment, the first adsorption component 52 is an electromagnet, and the second adsorption component 6 is a permanent magnet. When the first adsorption component 52 is transported directly below the second adsorption component 6, the conducting component 51 used to control the magnetic attraction circuit of the first adsorption component 52 disconnects the magnetic attraction circuit of the first adsorption component 52, causing the magnetic metal impurities on the first adsorption component 52 to fall off. At the same time, the second adsorption component 6 adsorbs the fallen magnetic metal impurities onto the surface of the second adsorption component 6, thereby achieving the effect of cleaning the first adsorption component 5.

[0072] In a preferred embodiment, both the first adsorption element 52 and the second adsorption element 6 are electromagnets. The second adsorption element 6 is controlled by an external switch, with the magnitude of the supplied current controlling the magnitude of the magnetic attraction force, which can be adjusted according to the site conditions. When the first adsorption element 52 is transported directly below the second adsorption element 6, the conducting component 51, which controls the magnetic attraction circuit of the first adsorption element 52, disconnects the magnetic attraction circuit of the first adsorption element 52, so that the magnetic metal impurities on the first adsorption element 52 are no longer attracted. At the same time, the second adsorption element 6 attracts the magnetic metal impurities to its surface, achieving the effect of cleaning the first adsorption element 5. When too many magnetic metal impurities are attached to the surface of the second adsorption element 6, a container with an open top can be suspended above the first adsorption element 5 and below the second adsorption element 6, with the size of the container opening larger than the size of the second adsorption element 6. Then, the second adsorption element 6 is closed, causing all the magnetic metal impurities on the second adsorption element 6 to fall into the container, achieving the effect of cleaning the second adsorption element 6. This eliminates the need to disassemble the mounting cover 7 or the second adsorption element 6, improving production efficiency.

[0073] Please see Figure 2 , Figure 5 and Figure 6In a specific embodiment of this application, the conductive component 51 includes a conductive sheet 511 and a conductive component 512. The conductive component 512 further includes a conductive element 513 and a mounting base 514. The mounting base 514 further includes a first base 515, a second base 516, a positioning post 517, and an elastic element 518. The inner sidewall of the mounting plate 21 is provided with an annular mounting groove along the movement trajectory of the conveyor belt 53. The conductive sheet 511 is laid in the mounting groove along the direction of the mounting groove. A demagnetizing notch is opened on the upper side of the conductive sheet 511. The two ends of the demagnetizing notch are located on both sides of the second adsorption element 6. One end of the conductive element 513 is fixedly connected to the first base 515, and the other end is inserted into the mounting plate 6. The conductive sheet 511 slides and makes contact with the groove within the mounting groove, and the bottom of the first base 515 is provided with a positioning post 517. The upper end of the second base 516 is provided with a positioning hole, and the elastic element 518 is provided in the positioning hole. The positioning post 517 is slidably connected to the second base 516 through the positioning hole, and the elastic element 518 is always in a state of being compressed by the positioning post 517. When the first adsorption element 52 is in the demagnetization area, the magnetic attraction circuit of the first adsorption element 52 is always disconnected. When the conductive element 513 re-contacts and makes contact with the conductive sheet 511, the magnetic attraction circuit of the first adsorption element 52 is re-connected, so that the first adsorption element 52 continues to adsorb magnetic metal impurities.

[0074] In a preferred embodiment, the second adsorption member 6 is located at the midpoint of the demagnetization notch, and the range of the demagnetization notch is larger than the size of the second adsorption member 6.

[0075] Understandably, the elastic element 518 can be a spring or tension spring, which can extend and retract within the positioning hole.

[0076] In the device of this application, a single first adsorption element 52 is controlled by two sets of identical conductive components 51. The two sets of conductive components 51 are symmetrically arranged on the conveyor belts 53 near both ends of the first adsorption element 52 and move with the conveyor belts 53. The conductive elements 513 of the two sets of conductive components 51 are electrically connected to the positive and negative poles of the corresponding first adsorption element 52, respectively. Each first adsorption element 52 is provided with two sets of conductive components 51 to control the state of the magnetic attraction circuit, and the connection method is the same. When the conductive sheet 511 and the two conductive elements 513 that are electrically connected to the positive and negative poles of the first adsorption element 52 are in contact at the same time, the magnetic attraction circuit of the first adsorption element 52 is turned on, so that the first adsorption element 52 can adsorb magnetic metal impurities in the tobacco. When the conductive element 513 moves to the demagnetization notch of the conductive sheet 511, the magnetic attraction circuit of the first adsorption element 52 is disconnected, and the magnetic metal impurities that were originally adsorbed by the first adsorption element 52 are no longer adsorbed, so that the second adsorption element 6 can adsorb the magnetic metal impurities that are not adsorbed by the first adsorption element 52 to the surface of the second adsorption element 6.

[0077] In one implementation, when the conductive element 513 contacts the conductive sheet 511, the conductive element 513 is positioned above the conductive sheet 511. In this case, the elastic element 518 can be a tension spring. However, during implementation, if the width of the annular mounting groove is too wide, the conductive element 513 may be suspended above the conductive sheet 511 and unable to contact the conductive sheet 511, and the magnetic attraction circuit of the first adsorption element 52 may not be able to conduct normally.

[0078] In a preferred embodiment, when the conductive element 513 contacts the conductive sheet 511, the conductive element 513 is positioned below the conductive sheet 511. In this case, the elastic element 518 can be a spring, and the conductive element 513 can always contact the conductive sheet 511, making the magnetic attraction circuit of the first adsorption element 52 more stable.

[0079] In a preferred embodiment, the conductive element 513 has a sliding surface on its upper part, which makes the contact area between the conductive element 513 and the conductive sheet 511 larger and the magnetic attraction circuit more stable.

[0080] In actual use, when the conductive component 513 moves from the demagnetization notch of the conductive sheet 511 to the conductive sheet 511 along with the conveyor belt 53, the conductive component 513 gets stuck and cannot move onto the conductive sheet 511 because the end face of the conductive sheet 511 is vertical.

[0081] Based on problems encountered in practical applications, please refer to Figure 5 :

[0082] In a specific embodiment of this application, the end face of the conductive sheet 511 is beveled, which makes the conductive component 513 move more smoothly from the demagnetization notch of the conductive sheet 511 onto the conductive sheet 511 and prevents it from getting stuck.

[0083] In one specific embodiment, the positioning post 517 is a cylinder, and the positioning hole is a matching circular hole. During the movement of the conductive component 513, there is sliding friction, and the lower end of the positioning post is a retractable elastic component 518, which causes the positioning post 517 to sway in the positioning hole or even be ejected.

[0084] To resolve the above issues, please refer to [link / reference]. Figure 5 In a specific embodiment of this application, the positioning post 517 is provided with an axial limiting cut surface 519, and an abutment surface corresponding to the limiting cut surface 519 is opened in the positioning hole. The limiting cut surface 519 and the abutment surface slide and fit together, so that the positioning post 517 will not shake when sliding and extending inside the second seat 516.

[0085] Please see Figure 1-5In a specific embodiment of this application, after the device is started, the drive unit on the conveyor belt 1 drives the conveyor belt 1 to convey tobacco shreds, and the vibration component 4 drives the conveyor belt 1 to reciprocate left and right along the direction of the slide rail, so that the tobacco shreds on the conveyor belt 1 can be dispersed and always in a uniform and flat state. The drive shaft of the conveyor belt 1 drives the first rotating shaft 31 to rotate, and the second rotating shaft 32 is driven by the first rotating shaft 31 through the transmission belt 33, so that the conveyor belt 53 runs together with the conveyor belt 1. The two conductive parts 513 that are electrically connected to the positive and negative poles of the same first adsorption element 52 move with the conveyor belt 53 and slide into contact with the conductive sheet 511 to conduct electricity, so that the magnetic attraction circuit of the corresponding first adsorption element 52 is conducted. The first adsorption element 52 with the magnetic attraction circuit conducted can adsorb magnetic metal impurities in the tobacco shreds on the conveyor belt 1. The first adsorption element 52 with magnetic metal impurities on its surface is transported by the conveyor belt 53 to the lower part of the second adsorption element 6. At this time, the two conductive parts 513 corresponding to the first adsorption component 52 with magnetic metal impurities on its surface move to the demagnetization notch of the conductive sheet 511, causing the magnetic attraction circuit of the first adsorption component 52 with magnetic metal impurities on its surface to be disconnected. The second adsorption component 6 can adsorb the magnetic metal impurities that are not adsorbed by the first adsorption component 52 to the surface of the second adsorption component 6, achieving the effect of cleaning the first adsorption component 52. After cleaning, the first adsorption component 52 is transported again by the conveyor belt 53 to the top of the conveyor belt 1, and the cycle continues. When there are too many magnetic metal impurities on the surface of the second adsorption component 6, a container with an open top can be suspended above the first adsorption component 5 and directly below the second adsorption component 6. Then, the external switch of the second adsorption component 6 is turned off, causing the magnetic metal impurities on the second adsorption component 6 to fall into the container, achieving the effect of cleaning the second adsorption component 6. During this process, the first adsorption component 5 always remains in working condition.

[0086] Understandably, the magnetic attraction force of the second adsorption component 6 can be adjusted according to actual needs.

[0087] It is understandable that both sides of the conveyor belt are provided with first adsorption elements 52. When some of the first adsorption elements 52 are cleaned by the second adsorption elements 6, there are always first adsorption elements 52 adsorbing magnetic metal impurities in the tobacco on the conveyor belt 1.

[0088] The above-described contents can be implemented individually or in various combinations, and these variations are all within the protection scope of this invention.

[0089] 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.

[0090] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered within the scope of protection of the present invention.

Claims

1. A purification device, installed above a conveyor belt (1), for adsorbing impurities in the tobacco shreds conveyed by the conveyor belt (1), characterized in that, The device includes a first adsorption component (5) and a second adsorption element (6). The first adsorption component (5) is arranged parallel above the conveyor belt (1) and the first adsorption component (5) and the conveyor belt (1) operate synchronously in a cyclic manner. The second adsorption element (6) is fixed parallel above the first adsorption component (5). The first adsorption component (5) is used to adsorb magnetic impurities in the tobacco shreds conveyed by the conveyor belt (1), and the second adsorption element (6) is used to adsorb magnetic impurities on the first adsorption component (5), so that the first adsorption component (5) continuously adsorbs magnetic impurities in the tobacco shreds conveyed by the conveyor belt (1). The first adsorption component (5) includes a conductive component (51), a first adsorption element (52), and a conveyor belt (53); the conductive component (51) includes a conductive sheet (511) and a conductive component (512); the conductive component (512) includes a conductive element (513) and a mounting base (514); The mounting base (514) further includes a first base (515), a second base (516), a positioning post (517), and an elastic element (518). One end of the conductive element (513) is fixedly connected to the first base (515). The positioning post (517) is provided at the bottom of the first base (515). A positioning hole is opened at the upper end of the second base (516). The elastic element (518) is located in the positioning hole. The positioning post (517) is slidably connected to the second base (516) through the positioning hole, and the elastic element (518) is always in a compressed state by the positioning post (517). When the conductive element (513) contacts the conductive sheet (511), the conductive element (513) is located below the conductive sheet (511). A sliding cut surface is provided on the upper part of the conductive element (513).

2. The impurity removal device according to claim 1, characterized in that, The magnetic attraction force of the first adsorption component (5) is less than that of the second adsorption component (6).

3. The impurity removal device according to claim 1, characterized in that, The conveyor belt (53) is provided with a plurality of the first adsorption elements (52), and the conductive components (51) are respectively provided at both ends of the first adsorption elements (52).

4. The impurity removal device according to claim 3, characterized in that, A support frame (2) is provided between the conveyor belt (1) and the conveyor belt (53), and the support frame (2) is erected and fixed on both sides of the conveyor belt (1).

5. The impurity removal device according to claim 4, characterized in that, The support frame (2) includes a mounting plate (21) and legs (22). The two legs (22) are symmetrically arranged on both sides of the conveyor belt (1). The mounting plate (21) is provided at the upper end of the legs (22). The conveyor belt (53) is mounted between the two symmetrically arranged mounting plates (21). The running direction of the conveyor belt (53) is the same as that of the conveyor belt (1).

6. The impurity removal device according to claim 5, characterized in that, A transmission assembly (3) is provided between the conveyor belt (1) and the first adsorption component (5). The transmission assembly (3) includes a first rotating shaft (31), a second rotating shaft (32), and a transmission belt (33). The first rotating shaft (31) is the driven shaft of the conveyor belt (1), and the second rotating shaft (32) is the driving shaft of the conveyor belt (53). The first rotating shaft (31) and the second rotating shaft (32) are connected by the transmission belt (33) so that the conveyor belt (53) can run synchronously with the conveyor belt (1). The transmission belt (33) is located on the outside of the mounting plate (21).

7. The impurity removal device according to claim 5, characterized in that, The inner sidewall of the mounting plate (21) is provided with an annular mounting groove along the running track of the conveyor belt (53). The conductive sheet (511) is laid in the mounting groove along the direction of the mounting groove. The conductive component (512) is mounted between the conveyor belt (53) and the mounting groove. The conductive component (512) and the conductive sheet (511) are in sliding contact and conduction.

8. The impurity removal device according to claim 7, characterized in that, The conveyor belt (53) is provided with the mounting base (514), and the other end of the conductive element (513) is inserted into the mounting groove and makes sliding contact with the conductive sheet (511) in the mounting groove to conduct electricity.

9. The impurity removal device according to claim 8, characterized in that, The conductive elements (513) on both sides of the conveyor belt (53) are electrically connected to the positive and negative poles of the first adsorption element (52), respectively. When the two conductive elements (513) located at both ends of the first adsorption element (52) simultaneously contact and conduct with the conductive sheets (511) located in the mounting plates (21) on both sides of the conveyor belt (53), the magnetic attraction circuit of the first adsorption element (52) is connected.

10. The impurity removal device according to claim 9, characterized in that, The conductive sheet (511) has a demagnetizing notch on its upper side. The two ends of the demagnetizing notch are located on both sides of the second adsorption member (6), and the end faces of the two ends of the demagnetizing notch are inclined. When the conductive member (513) moves to the demagnetizing notch, the sliding contact between the conductive member (513) and the conductive sheet (511) is broken, and the magnetic attraction circuit of the first adsorption member (52) is broken.

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