A tobacco leaf and metal impurity separating device for a cutter

Abstract

The application discloses a tobacco leaf and metal impurity separation device for a tobacco cutting machine, and relates to the technical field of tobacco manufacturing.The device comprises a bottom plate, a cylinder is arranged at each corner of the top end wall of the bottom plate, a spring is arranged on the inner bottom wall of the cylinder, a connecting seat is arranged on the top end wall of the spring, an inner side wall between a plurality of connecting seats is provided with a base, a sliding groove is arranged on the left and right side inner walls of the base, a material box is embedded in the base, sliding blocks are arranged on the left and right sides of the outer wall of the material box and are slidably connected in the sliding grooves, a recovery box is arranged on the back side wall of the bottom plate, a motor one is arranged on the top end wall of the bottom plate and below the base, and a round rod is locked to the output end of the motor one through a shaft coupling.The device automatically separates tobacco leaves and metal impurities through the synergistic effect of mechanical vibration and electromagnetic adsorption, does not need manual sorting and transportation, effectively solves the problems of low efficiency, high labor intensity and hidden health hazards in the traditional mode, and meets the continuous production requirements.

Description

Technical Field

[0001] This application relates to the field of tobacco manufacturing technology, specifically to a device for separating tobacco leaves and metal impurities in a shredder. Background Technology

[0002] In the tobacco processing flow, the shredding process is a critical step affecting the final quality of the tobacco and the safe and stable operation of the equipment. To prevent metal impurities mixed in with the raw materials from entering the shredder and causing damage to the cutters, affecting product quality, or even causing safety accidents, the current mainstream practice is to install metal detection and rejection equipment at the feed end of the shredder. When the metal detector detects a metal foreign object in the tobacco stream, it immediately triggers the actuator to remove the tobacco clump containing the metal impurity as a whole, allowing it to fall into a designated collection container through a dedicated pipe.

[0003] However, the aforementioned rejection process only separates problematic materials from the main line; subsequent core separation steps still heavily rely on manual labor. Operators need to pour the mixture of tobacco leaves and metal from the collection container onto the work platform, and then sort them by visual inspection and handheld magnets. For metal parts tightly wrapped by tobacco leaves, workers must manually peel them apart layer by layer to ensure that deeply hidden impurities are thoroughly removed. After sorting, the clean tobacco leaves must be manually fed back into the front-end feeding equipment for a secondary metal detection to ensure the purity of the incoming material.

[0004] This series of manual operation modes has obvious drawbacks. First, the entire sorting process is time-consuming and labor-intensive, severely restricting the production cycle and making it difficult to meet the continuous and efficient operation requirements of modern tobacco processing. Second, the sorting effect relies excessively on the operator's focus and experience, posing a risk of missing impurities and potentially leading to multiple cycles of material rejection and sorting, thus reducing overall operational efficiency. Third, materials are dumped and sorted in an open environment, making them susceptible to environmental dust contamination, and direct human contact with raw materials also introduces hygiene and safety hazards. Finally, the long-term repetitive bending, carrying, and fine sorting actions are not only physically demanding and prone to causing worker fatigue, but also further exacerbate the instability of sorting efficiency and quality.

[0005] Therefore, this application proposes a tobacco leaf and metal impurity separation device for a tobacco shredder, which can realize the automated and sealed separation of tobacco leaves and metal impurities, improve separation efficiency and thoroughness, reduce manual labor intensity, and ensure the processing quality and hygiene safety of tobacco materials. Utility Model Content

[0006] The main objective of this application is to provide a tobacco leaf and metal impurity separation device for a tobacco shredder, in order to solve the problems of low operating efficiency, incomplete separation of metal impurities, potential health and safety hazards, and high labor intensity of operators caused by reliance on manual sorting in the prior art.

[0007] To achieve the above objectives, this application provides the following technical solution: A tobacco leaf and metal impurity separation device for a shredder includes a base plate. Cylinders are located at the four corners of the top wall of the base plate. Springs are located on the inner bottom wall of each cylinder. Connecting seats are located on the top wall of each spring. Bases are located on the inner side walls between the connecting seats. Sliding grooves are located on the left and right inner walls of the bases. A material box is embedded within the base. Slider blocks are located on the left and right sides of the outer wall of the material box, and the sliders are slidably connected to the sliding grooves. A recycling box is located on the rear side wall of the base plate. A motor is located on the top wall of the base plate, below the base. A round rod is locked to the output end of the motor via a coupling. A side plate is rotatably connected to the right end of the round rod via a bearing. The side plate is fixedly connected to the top wall of the base plate. Multiple cams are interference-fitted to the outer wall of the round rod. A magnetic impurity removal mechanism is located on the left side of the top wall of the base plate via a support column.

[0008] Furthermore, the magnetic impurity removal mechanism includes a housing, a second motor is provided on the rear side of the inner bottom wall of the housing, the output end of the second motor is locked with a lead screw through a coupling, and the front end wall of the lead screw is rotatably connected to the inner wall of the housing through a bearing. A connecting block is threadedly connected to the outer wall of the lead screw, a connecting rod is provided on the right side wall of the connecting block, the right end wall of the connecting rod extends out of the housing, and a cylinder is provided on the outer wall. An electromagnet is provided on the driving bottom end wall of the cylinder.

[0009] Furthermore, the electromagnet is located directly above the hopper.

[0010] Furthermore, the outer ring of the second bearing is fixedly connected to the inner wall of the housing through the bearing seat, and the inner ring of the second bearing is interference-fitted with the outer wall of the lead screw.

[0011] Furthermore, the plurality of said cams are arranged at intervals from left to right on the outer wall of the round rod.

[0012] The technical solution provided in this application may include the following beneficial effects: This application replaces traditional manual operation with a mechanical structure, eliminating the need for manual material dumping, bending over to sort, and secondary transfer feeding. On one hand, a motor drives a cam to rotate, which, in conjunction with a spring reset, automatically vibrates the base and material box, quickly separating tobacco leaves wrapped with metal impurities, saving the time-consuming step of manually peeling tobacco leaves layer by layer. On the other hand, a second motor drives a lead screw to move an electromagnet back and forth, which, in conjunction with a cylinder controlling the electromagnet's lifting and lowering, automatically completes the comprehensive adsorption of metal impurities and centralized unloading from the recycling box. The entire process requires no manual intervention, shortening the material handling cycle and solving the problem of low efficiency in traditional manual operation, making it suitable for the continuous production needs of tobacco processing. This application achieves fully enclosed material processing. The material falls directly from the discharge pipe of the rejection machine into the material box. Subsequent shaking, adsorption, and transfer processes are all completed inside the material box or inside the equipment, without contact with the ground or the operator's hands. This avoids environmental dust pollution and hygiene hazards caused by human contact, and meets the hygiene and quality requirements of tobacco processing. This application replaces manual labor with an automated structure. Operators only need to clean the recycling bins periodically during impurity recovery and pull out the material bins to unload the tobacco leaves during transfer. There is no need to bend over, carry heavy objects, or sort for long periods of time, which greatly reduces labor intensity, improves the working environment for operators, and reduces efficiency decline and errors caused by personnel fatigue. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the base structure of this utility model; Figure 3 This is a schematic diagram of the magnetic impurity removal mechanism of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Base plate; 2. Cylinder; 3. Spring; 4. Connecting seat; 5. Base; 6. Slide groove; 7. Material box; 8. Slider; 9. Recycling box; 10. Motor 1; 11. Round rod; 12. Side plate; 13. Cam; 14. Support column; 15. Housing; 16. Motor 2; 17. Lead screw; 18. Connecting block; 19. Connecting rod; 20. Cylinder; 21. Electromagnet. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0017] See Figure 1-3As shown, a tobacco leaf and metal impurity separation device for a shredder includes a base plate 1. Cylinders 2 are provided at the four corners of the top wall of the base plate 1. Springs 3 are provided on the inner bottom wall of the cylinders 2. Connecting seats 4 are provided on the top wall of the springs 3. Bases 5 are provided on the inner side walls between the multiple connecting seats 4. Slide grooves 6 are provided on the left and right inner walls of the base 5. A material box 7 is embedded inside the base 5. Slider blocks 8 are provided on the left and right sides of the outer wall of the material box 7, and the sliders 8 are slidably connected to the slide grooves 6. A recycling box 9 is provided on the rear side wall of the base plate 1. A motor 10 is provided on the top wall of the base plate 1 and below the base 5. A round rod 11 is locked to the output end of the motor 10 via a coupling. A side plate 12 is rotatably connected to the right end of the round rod 11 via a bearing. The side plate 12 is fixedly connected to the top wall of the base plate 1. Multiple cams 13 are interference-fitted to the outer wall of the round rod 11. A magnetic impurity removal mechanism is provided on the left side of the top wall of the base plate 1 via a support column 14.

[0018] Furthermore, the magnetic impurity removal mechanism includes a housing 15. A second motor 16 is provided on the rear side of the inner bottom wall of the housing 15. The output end of the second motor 16 is locked with a lead screw 17 through a coupling. The front end wall of the lead screw 17 is rotatably connected to the inner wall of the housing 15 through a bearing. A connecting block 18 is threadedly connected to the outer wall of the lead screw 17. A connecting rod 19 is provided on the right side wall of the connecting block 18. The right end wall of the connecting rod 19 extends out of the housing 15 and is provided on the outer wall of the cylinder 20. An electromagnet 21 is provided on the driving bottom wall of the cylinder 20. After the second motor 16 is started, the lead screw 17 is rotated. The lead screw 17 causes the connecting block 18 to move the connecting rod 19, the cylinder 20 and the electromagnet 21 to the top of the material box 7. The cylinder 20 drives the electromagnet 21 to move downward into the material box 7, so that it is close to the material in the material box 7. The electromagnet 21 is energized and started, and the electromagnet 21 adsorbs the metal impurities in the material.

[0019] Furthermore, the electromagnet 21 is located directly above the material box 7. By starting the motor 16 in both forward and reverse directions, the electromagnet 21 can perform a covering back-and-forth reciprocating motion inside the material box 7, completely adsorbing and removing metal impurities inside the material box 7.

[0020] Furthermore, the outer ring of the second bearing is fixedly connected to the inner wall of the housing 15 through the bearing seat, and the inner ring of the second bearing is interference-fitted to the outer wall of the lead screw 17. The second bearing fixes the lead screw 17, facilitating the rotation of the lead screw 17 through the second bearing.

[0021] Furthermore, multiple cams 13 are arranged from left to right on the outer wall of the round rod 11. After the motor 10 is started, the round rod 11 drives the cams 13 to rotate. The rotation of multiple cams 13 can alternately lift the base 5 upwards. At the same time, the elastic force of the spring 3 pulls the base 5 back to its original position, thereby achieving the vibration effect of the base 5. The base 5 drives the slide 6, the material box 7 and the slider 8 to perform vibration operation. The vibration of the material box 7 disperses the tobacco leaves containing metal impurities, causing them to separate.

[0022] For those skilled in the art, all electrical components and parts in this case are general standard parts or parts known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. All models are compatible with this solution and can operate normally. All electrical components in this case are connected to their compatible power supplies through wires. According to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence should refer to the working principle below, and the electrical connection is completed by the sequential operation of each electrical component. The detailed connection method is a well-known technology in the art, and the electrical control will not be described further.

[0023] One specific application of this embodiment is: Before use, the device should be stably installed directly below the discharge pipe of the front rejection machine of the shredder, ensuring that the material box 7 is aligned with the outlet of the discharge pipe, and checking that the spring 3 at the bottom of the base 5 is in a natural extension and retraction state, and that the slider 8 and the slide 6 are in smooth cooperation. At the same time, the recycling box 9 should be placed in the designated position behind the base 5.

[0024] After the device is started, its working process is as follows: When the rejection mechanism detects tobacco leaves containing metal impurities and triggers a flipping action, the mixed material falls into the material box 7 through the discharge pipe. At this time, the motor 10 is started, and its output shaft drives the round rod 11 and multiple cams 13 fixed on it to rotate synchronously. During the rotation, the cams 13 alternately lift the base 5 with their eccentric structure, and the base 5 repeatedly resets under the elastic force of the spring 3, thereby generating continuous high-frequency vibration. This vibration is transmitted to the material box 7 through the cooperation of the slide groove 6 and the slider 8, causing the tobacco leaf clumps inside to loosen under the vibration, exposing the previously wrapped metal impurities, and achieving effective separation of tobacco leaves and impurities.

[0025] After the vibration and dispersion operation is completed, the magnetic impurity removal program is immediately initiated. Motor 2 (16) starts working, driving the lead screw (17) to rotate, which in turn moves the connecting block (18) threaded onto it. This, in turn, moves the cylinder (20) and the electromagnet (21) mounted on the piston rod end via the connecting rod (19) to directly above the material bin (7). Subsequently, the cylinder (20) actuates, pushing the electromagnet (21) down into the material bin (7) and close to the material. At this point, the electromagnet (21) is energized, generating a strong magnetic field that attracts exposed metallic impurities. To fully cover the interior of the material bin (7), motor 2 (16) can alternate between forward and reverse rotation, driving the electromagnet (21) to reciprocate back and forth, ensuring that all magnetic metallic impurities are attracted without omission.

[0026] When the adsorption process ends, cylinder 20 first retracts its piston rod, raising the electromagnet 21, which has adsorbed impurities, above the material box 7. Then, motor 16 starts again, driving electromagnet 21 to move backward until it is directly above the recovery box 9. At this point, the power supply to electromagnet 21 is cut off, the magnetic field disappears, and the adsorbed metal impurities fall off under the action of gravity and are collected in the recovery box 9.

[0027] Finally, the operator can pull the material box 7 forward, allowing it to move out of the slide groove 6 of the base 5 via the slider 8, and pour the clean tobacco leaves that have been purified into the feeder at the front of the shredder. After unloading, the material box 7 is pushed back into the base 5 to reset, and the entire device is ready to receive the next batch of mixed materials falling from the discharge pipe of the rejection machine and start a new round of separation cycle.

[0028] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for separating tobacco leaves and metal impurities in a shredder, characterized in that, The system includes a base plate (1), with cylinders (2) at the four corners of the top wall of the base plate (1). A spring (3) is provided on the inner bottom wall of the cylinder (2), and a connecting seat (4) is provided on the top wall of the spring (3). A base (5) is provided on the inner side wall between the multiple connecting seats (4). A sliding groove (6) is provided on the left and right inner walls of the base (5). A material box (7) is embedded inside the base (5). A slider (8) is provided on the left and right sides of the outer wall of the material box (7), and the slider (8) is slidably connected to the sliding groove (6). The base plate (1) A recycling bin (9) is provided on the rear side wall. A motor (10) is provided on the top wall of the base plate (1) and below the base (5). A round rod (11) is locked to the output end of the motor (10) through a coupling. A side plate (12) is rotatably connected to the right end of the round rod (11) through a bearing. The side plate (12) is fixedly connected to the top wall of the base plate (1). Multiple cams (13) are interference-fitted to the outer wall of the round rod (11). A magnetic suction cleaning mechanism is provided on the left side of the top wall of the base plate (1) through a support column (14).

2. The tobacco leaf and metal impurity separation device for a shredder according to claim 1, characterized in that, The magnetic suction cleaning mechanism includes a housing (15). A second motor (16) is provided on the rear side of the inner bottom wall of the housing (15). The output end of the second motor (16) is locked with a lead screw (17) through a coupling. The front end wall of the lead screw (17) is rotatably connected to the inner wall of the housing (15) through a bearing. A connecting block (18) is threaded on the outer wall of the lead screw (17). A connecting rod (19) is provided on the right side wall of the connecting block (18). The right end wall of the connecting rod (19) extends out of the housing (15) and a cylinder (20) is provided on the outer wall. An electromagnet (21) is provided on the driving bottom wall of the cylinder (20).

3. The tobacco leaf and metal impurity separation device for a shredder according to claim 2, characterized in that, The electromagnet (21) is located directly above the hopper (7).

4. The tobacco leaf and metal impurity separation device for a shredder according to claim 2, characterized in that, The outer ring of the second bearing is fixedly connected to the inner wall of the housing (15) through the bearing seat, and the inner ring of the second bearing is interference-fitted to the outer wall of the lead screw (17).

5. The tobacco leaf and metal impurity separation device for a shredder according to claim 1, characterized in that, Multiple cams (13) are arranged from left to right on the outer wall of the rod (11).

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