A tobacco magnetic impurity removing device for a tobacco manufacturing equipment

Abstract

The utility model relates to cut tobacco magnet impurity removal technical field discloses a cut tobacco magnet impurity removal device of making equipment, including work table, the bottom fixedly connected with a plurality of supporting legs of work table, the middle rotationally connected with conveyer belt of work table through transmission shaft, the left and right ends of work table all are established with rectangular groove, the middle clamping connection of rectangular groove has the collection box, through setting collection box, the impurity scraped off falls into detachable collection box directly, avoids the secondary pollution that the impurity scattering causes, reduces the frequency of cleaning maintenance, through setting handle and stop plate, through handle screwing loose stop plate, can dismantle quick -witted magnet of cylinder shape, and the time -consuming of replacement or maintenance is short, reduces the loss of shutdown, through setting L shape support plate, positioning rod and limit ring, the multiple orientation structure that L shape support plate, positioning rod and limit ring constitute, ensure the accurate movement track of scraper, reduce the impact of vibration to magnet and transmission component, prolong the service life of device.

Description

Technical Field

[0001] This utility model relates to the field of tobacco shred magnetic impurity removal technology, specifically a tobacco shred magnetic impurity removal device for tobacco shred processing equipment. Background Technology

[0002] During the tobacco processing, ferromagnetic metal impurities (such as iron filings, screws, staples, etc.) are often mixed in with the tobacco. If these impurities are not effectively removed, they will not only reduce the quality of cigarette products and affect the smoking taste, but may also cause wear and even damage to subsequent cigarette-making equipment, posing safety hazards. Therefore, magnetic separation for impurity removal is a crucial step in tobacco processing.

[0003] Traditional methods for removing impurities from tobacco shreds primarily employ fixed permanent magnets or electromagnets, which use their magnetic fields to attract metallic impurities during the conveying process. To ensure thorough removal of these impurities, the permanent magnets or electromagnets extend a considerable distance along the conveyor belt to guarantee sufficient adsorption distance. This design results in large permanent magnets or electromagnets that occupy significant space, making them unsuitable for installation on small production lines. Utility Model Content

[0004] The purpose of this utility model is to provide a tobacco shred magnetic impurity removal device for tobacco processing equipment, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tobacco shred magnetic impurity removal device for tobacco processing equipment, comprising a worktable;

[0006] The bottom of the workbench is fixedly connected to several support legs. A conveyor belt is rotatably connected to the middle of the workbench via a drive shaft. Rectangular slots are provided at both the left and right ends of the workbench, and a collection box is engaged in the middle of the rectangular slots.

[0007] A support base is fixedly connected to the upper left end of the workbench, and a first servo motor is fixedly connected to the left side of the support base; a rotating shaft is fixedly connected to the output end of the first servo motor, and the rotating shaft passes through the support base; a limit rod is fixedly connected to one end of the rotating shaft, and a cylindrical magnet is engaged in the middle of the limit rod.

[0008] The system consists of four supporting legs, which are spaced apart from each other.

[0009] Furthermore, a limit plate is threadedly connected to the right end of the limiting rod, and a handle is fixedly connected to the outer end of the limit plate.

[0010] Furthermore, a second servo motor is fixedly connected to both the front and rear of the left side of the support base, and a lead screw is fixedly connected to the output end of each second servo motor; each lead screw is rotatably connected to the support base, and a ball nut seat is threaded onto each lead screw; an L-shaped connecting plate is fixedly connected to the inner side of each ball nut seat, and an annular scraper is fixedly connected to one end of each L-shaped connecting plate; the annular scraper is movably sleeved on the magnet, and the annular scraper is in close contact with the outer surface of the magnet.

[0011] Furthermore, a limiting ring is rotatably connected to the right end of the lead screw, and an L-shaped support plate is fixedly connected to one end of the limiting ring. The bottom end of the L-shaped support plate is fixedly connected to the worktable.

[0012] Furthermore, an L-shaped slide rod is fixedly connected to the outer side of the ball nut seat; a positioning rod is slidably connected to the lower end of the L-shaped slide rod, one end of the positioning rod is fixedly connected to the support seat, and the other end is fixedly connected to the L-shaped support plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By using cylindrical magnets, which are essentially bending magnets arranged in a straight line into a cylindrical shape, the footprint of the magnets is reduced. This makes them suitable for production lines with limited space.

[0015] The rotating cylindrical magnet is driven to rotate continuously by the first servo motor. The magnetic force coverage range expands dynamically with rotation, which can also eliminate the adsorption blind zone of traditional fixed magnets and significantly improve the capture efficiency of metal impurities (such as iron filings, iron wires, etc.). Combined with the uniform conveying of the conveyor belt and the rotation adsorption of the magnet, the tobacco processing and impurity removal can be carried out simultaneously, avoiding production interruption and making it suitable for high-speed production lines.

[0016] By incorporating a second servo motor, lead screw, annular scraper, and ball bearing nut seat, the second servo motor controls the movement path and speed of the annular scraper through the lead screw and ball bearing nut seat, automatically scraping away impurities from the magnet surface without manual intervention. This promptly removes metallic impurities from tobacco, preventing them from entering subsequent processes (such as shredders and packaging machines), reducing the risk of equipment jamming, wear, or malfunction. The second servo motor only operates intermittently during the cleaning cycle. Combined with the low power requirement of magnet rotation, the overall energy consumption is far lower than traditional pneumatic or high-pressure rinsing and impurity removal devices. By incorporating a collection box, the scraped impurities fall directly into the detachable collection box, preventing secondary pollution caused by impurities scattering and reducing the frequency of cleaning and maintenance. By incorporating a handle and a limit plate, the cylindrical magnet can be quickly disassembled by loosening the limit plate with the handle, minimizing replacement or maintenance time and reducing downtime losses. By incorporating an L-shaped support plate, positioning rod, and limit ring, the multiple guiding structure formed by the L-shaped support plate, positioning rod, and limit ring ensures precise scraper movement trajectory, reduces the impact of vibration on the magnet and transmission components, and extends the service life of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front cross-sectional view of the present invention.

[0020] Figure 3 This is a top view of the structure of this utility model.

[0021] In the diagram: 1. Workbench; 2. Support leg; 3. Conveyor belt; 4. Rectangular trough; 5. Collection box; 6. Support base; 7. First servo motor; 8. Rotating shaft; 9. Limiting rod; 10. Cylindrical magnet; 11. Limiting plate; 12. Handle; 13. Second servo motor; 14. Lead screw; 15. Ball bearing nut seat; 16. L-shaped connecting plate; 17. Annular scraper; 18. Limiting ring; 19. L-shaped support plate; 20. Positioning rod; 21. L-shaped slide bar. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In one embodiment, see Figure 1-3This utility model provides a technical solution for a tobacco processing equipment using a magnetic impurity removal device: The device includes a workbench 1, with four support legs 2 fixedly connected to the bottom of the workbench 1. A conveyor belt 3 is rotatably connected to the middle of the workbench 1 via a drive shaft. Rectangular grooves 4 are provided at both ends of the workbench 1, and a collection box 5 is engaged in the middle of each groove 4. By using the collection box 5, scraped impurities fall directly into the detachable collection box 5, preventing secondary pollution caused by scattered impurities and reducing the frequency of cleaning and maintenance. A support base 6 is fixedly connected to the upper left end of the workbench 1, and a first servo motor 7 is fixedly connected to the left side of the support base 6. The output end of the servo motor 7 is fixedly connected to a rotating shaft 8, which passes through the support base 6. One end of the rotating shaft 8 is fixedly connected to a limit rod 9, and a cylindrical magnet 10 is engaged in the middle of the limit rod 9. By setting up the cylindrical magnet 10, the first servo motor 7, and the conveyor belt 3, the rotating cylindrical magnet 10 is driven to rotate continuously by the first servo motor 7. The magnetic force coverage range expands dynamically with the rotation, eliminating the adsorption blind zone of traditional fixed magnets and significantly improving the capture efficiency of metal impurities (such as iron filings, iron wires, etc.). Combined with the uniform conveying of the conveyor belt 3 and the magnetic rotation adsorption, the tobacco processing and impurity removal can be carried out simultaneously, avoiding production interruption and making it suitable for high-speed production lines.

[0026] The right end of the limiting rod 9 is threadedly connected to a limiting plate 11, and the outer end of the limiting plate 11 is fixedly connected to a handle 12. By setting the handle 12 and the limiting plate 11, the cylindrical magnet 10 can be quickly disassembled by loosening the limiting plate 11 with the handle 12. Replacement or maintenance time is short, reducing downtime losses. The left side of the support base 6 is fixedly connected to the front and rear of the second servo motor 13. By setting the second servo motor 13, the lead screw 14, the annular scraper 17 and the ball nut seat 15, the second servo motor 13 controls the movement path and speed of the annular scraper 17 through the lead screw 14 and the ball nut seat 15, automatically scraping off impurities on the surface of the magnet without manual intervention. It removes metal impurities from the tobacco in time, preventing them from entering subsequent processes (such as shredders, packaging machines, etc.), reducing the risk of equipment jamming, wear or failure. The second servo motor 13 only works intermittently during the cleaning cycle. Combined with the low power requirement of magnet rotation, the overall energy consumption is much lower than that of traditional pneumatic or high-pressure rinsing and impurity removal equipment. The output end of the second servo motor 13 is fixedly connected to a lead screw 14. A ball nut seat 15 is threadedly connected to the middle of the lead screw 14. An L-shaped connecting plate 16 is fixedly connected to the inner side of the ball nut seat 15. By setting an L-shaped support plate 19, a positioning rod 20, and a limiting ring 18, the multiple guiding structure composed of the L-shaped support plate 19, the positioning rod 20, and the limiting ring 18 ensures the accurate movement trajectory of the scraper, reduces the impact of vibration on the magnet and transmission components, and extends the service life of the device. An annular scraper 17 is fixedly connected to one end of the L-shaped connecting plate 16. The right end of the lead screw 14 is rotatably connected to the limiting ring 18. An L-shaped support plate 19 is fixedly connected to one end of the limiting ring 18. The bottom end of the L-shaped support plate 19 is fixedly connected to the worktable 1. An L-shaped slide rod 21 is fixedly connected to the outer side of the ball nut seat 15. A positioning rod 20 is slidably connected to the lower end of the L-shaped slide rod 21. The left and right ends of the positioning rod 20 are fixedly connected to the support seat 6 and the L-shaped support plate 19, respectively.

[0027] Specifically, the annular scraper 17 can also be formed into a cylindrical structure around the circumference of the cylindrical magnet 10, and the diameter of the annular scraper 17 decreases along the axial direction of the cylindrical magnet 10. That is, one end edge of the annular scraper 17 is in close contact with the cylindrical magnet 10, and the other end edge is spaced apart from the cylindrical magnet 10. In other words, the annular scraper 17 is inclined at a predetermined angle to the outer surface of the cylindrical magnet 10, which can better scrape off impurities adsorbed on the cylindrical magnet 10.

[0028] The ball nut seat 15 is an existing accessory and is available on the market.

[0029] In use, the cylindrical magnet 10 is driven to rotate by the first servo motor 7, forming a dynamic magnetic field on the magnet surface that evenly covers the tobacco flow area on the conveyor belt 3. Metal impurities such as iron filings and iron wires are strongly attracted to the magnet surface under the action of the magnetic field and separated from the tobacco. The magnet rotates at a constant speed with the rotating shaft 8, ensuring that metal impurities are continuously attracted during the tobacco conveying process, and avoiding a decrease in attraction capacity due to impurities covering the magnet surface. The second servo motor 13 drives the lead screw 14 to rotate, causing the ball nut seat 15 to move laterally, making the annular scraper 17 reciprocate along the surface of the cylindrical magnet 10. The scraper is in close contact with the magnet, mechanically scraping away the attracted metal impurities. The scraped-off impurities fall directly into the collection boxes 5 on both sides by gravity, avoiding secondary contamination of the tobacco. The collection boxes are detachable for easy periodic cleaning.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic impurity removal device for tobacco shreds in a tobacco processing equipment, characterized in that: Including the workbench; The bottom of the workbench is fixedly connected to several support legs. A conveyor belt is rotatably connected to the middle of the workbench via a drive shaft. Rectangular slots are provided at both the left and right ends of the workbench, and a collection box is engaged in the middle of the rectangular slots. A support base is fixedly connected to the upper left end of the workbench, and a first servo motor is fixedly connected to the left side of the support base; a rotating shaft is fixedly connected to the output end of the first servo motor, and the rotating shaft passes through the support base; a limit rod is fixedly connected to one end of the rotating shaft, and a cylindrical magnet is engaged in the middle of the limit rod.

2. The impurity removal device according to claim 1, characterized in that: The right end of the limiting rod is threadedly connected to a limiting plate, and the outer end of the limiting plate is fixedly connected to a handle.

3. The impurity removal device according to claim 2, characterized in that: A second servo motor is fixedly connected to the front and rear of the left side of the support base, and a lead screw is fixedly connected to the output end of each second servo motor; each lead screw is rotatably connected to the support base, and a ball nut seat is threaded onto each lead screw; an L-shaped connecting plate is fixedly connected to the inner side of each ball nut seat, and an annular scraper is fixedly connected to one end of each L-shaped connecting plate; the annular scraper is movably sleeved on the magnet, and the annular scraper is in close contact with the outer surface of the magnet.

4. The impurity removal device according to claim 3, characterized in that: The right end of the lead screw is rotatably connected to a limiting ring, one end of which is fixedly connected to an L-shaped support plate, and the bottom end of the L-shaped support plate is fixedly connected to the worktable.

5. The impurity removal device according to claim 4, characterized in that: An L-shaped slide rod is fixedly connected to the outer side of the ball nut seat; a positioning rod is slidably connected to the lower end of the L-shaped slide rod, one end of the positioning rod is fixedly connected to the support seat, and the other end is fixedly connected to the L-shaped support plate.

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