Metal removal device in a dehydrated vegetable product
By combining vibration and rejection components, the device uses magnetic adsorption to continuously remove metal impurities from the conveyor belt, solving the problems of low efficiency and high cost of traditional devices and achieving efficient metal impurity separation and product quality assurance.
Patent Information
- Application Number
- CN202522055182.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-09-24
AI Technical Summary
Traditional metal removal devices are inefficient, costly, and difficult to completely remove metal impurities from dehydrated vegetables, affecting product quality and downstream production line equipment.
The design combines a vibrating component with a rejection component, using magnetic adsorption to continuously remove metal impurities on the conveyor belt. It includes a vibrating screen and a multi-layer conveyor belt structure to separate vegetables from metal.
It improves the efficiency and speed of removing metal impurities, reduces the maintenance costs of downstream production lines, and ensures product quality and equipment safety.
Smart Images

Figure CN224938568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a metal removal device for dehydrated vegetable products. Background Technology
[0002] Dehydrated vegetables, as direct or indirect food ingredients, must meet strict hygiene standards. Metal impurities can enter the product due to equipment wear and tear, raw material contamination, or human error, endangering consumer health. Furthermore, tiny metal fragments can scratch the digestive tract or cause heavy metal poisoning.
[0003] During the processing of dehydrated vegetables, metal machinery, pipes, or containers may produce iron filings or other metal impurities due to wear or corrosion. If these impurities are mixed into the product, they will not only affect the taste and quality, but long-term excessive iron intake can also lead to liver and spleen iron deposition, cirrhosis, and osteoporosis, posing a higher risk, especially to middle-aged and elderly people. Furthermore, sharp metal fragments can scratch the digestive tract, causing acute injury. However, traditional metal removal relies on periodic shutdowns to clean the adsorption equipment, which is inefficient and costly. Moreover, dehydrated vegetables cover the metal fragments when entering the equipment, resulting in incomplete cleaning, and the metal fragments flow into downstream production lines, causing wear and tear on the pipes and blades of downstream production line equipment, further increasing maintenance costs. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A metal removal device for dehydrated vegetable products includes a fixed column, a support plate fixedly connected to the outer side of the fixed column, a vibration component provided on the top of the support plate, and a driving component and a removal component respectively provided on the inner wall of the fixed column.
[0007] The vibration assembly includes a base plate fixed to the top of the support plate, a first drive motor fixedly connected to the top of the base plate, an eccentric wheel fixedly connected to the output end of the first drive motor, a transmission rod rotatably connected to the outer side of the eccentric wheel, a sleeve rod rotatably connected to one end of the transmission rod, and a connecting plate fixedly connected to one end of the sleeve rod.
[0008] The rejection assembly includes a drive shaft rotatably connected to the inner wall of the fixed column, a first roller fixedly connected to the outer side of the drive shaft, a first conveyor belt tractably connected to the outer side of the first roller, and a magnet installed on the inner wall of the first conveyor belt.
[0009] In a preferred embodiment of the metal removal device for dehydrated vegetable products described in this utility model, the driving assembly includes a second driving motor fixedly connected to the bottom of the support plate via a bracket, a first pulley fixedly connected to the output end of the second driving motor, a connecting belt drivingly connected to the outer side of the first pulley, and the inner wall of the first pulley fixedly connected to the transmission shaft via a fixed shaft.
[0010] In a preferred embodiment of the metal removal device for dehydrated vegetable products described in this utility model, the inner wall of the connecting belt is connected to a second pulley, the inner wall of the first conveyor belt is connected to a second roller via a rotating shaft, the inner wall of the connecting belt is connected to a second pulley, and the inner wall of the second pulley is fixedly connected to a first transmission cylinder via a rotating shaft.
[0011] In a preferred embodiment of the metal removal device for dehydrated vegetable products described in this utility model, the outer side of the first transmission cylinder is connected to a second conveyor belt, and the inner wall of the second conveyor belt is connected to a second transmission cylinder.
[0012] In a preferred embodiment of the metal removal device for dehydrated vegetable products described in this utility model, a second baffle is fixedly connected to the outer side of the fixed column, and a first scraper is fixedly connected to the inner wall of the second baffle.
[0013] In a preferred embodiment of the metal removal device for dehydrated vegetable products described in this utility model, a guide plate is fixedly connected to the outside of the fixed column, and a collection plate is fixedly connected to the bottom of the guide plate.
[0014] In a preferred embodiment of the metal removal device for dehydrated vegetable products described in this utility model, a material box is fixedly connected to the inner wall of the fixed column, and a funnel is fixedly connected to the top of the material box.
[0015] In a preferred embodiment of the metal removal device for dehydrated vegetable products described in this utility model, a first baffle is fixedly connected to the outer side of the fixed column, and the inner wall of the first baffle is slidably connected to the outer side of the connecting plate.
[0016] In a preferred embodiment of the metal removal device for dehydrated vegetable products described in this utility model, a vibrating screen is slidably connected to the bottom of the material box via a T-shaped guide groove, and the bottom of the vibrating screen is fixedly connected to the bottom of the connecting plate.
[0017] In a preferred embodiment of the metal removal device for dehydrated vegetable products described in this utility model, a debris box is fixedly connected to the outer side of the fixed column, and a second scraper is fixedly connected to the inner wall of the debris box.
[0018] In summary, this utility model has the following beneficial effects: by setting up a vibration component and a rejection component, the dehydrated vegetable products can be better dispersed and flowed in the equipment, allowing metal impurities to be more fully exposed, increasing the chance of metal impurities coming into contact with the magnet, and by using a continuously operating conveyor belt and magnetic adsorption method, metal is continuously rejected during the transportation of vegetable products. It has a large processing capacity and fast processing speed, avoiding the problem of metal flowing into downstream production lines and causing wear on the pipes or blades of downstream production line equipment, which would further increase maintenance costs. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0020] Figure 1 This is a structural diagram of a metal removal device used in dehydrated vegetable products.
[0021] Figure 2 for Figure 1 The enlarged structural diagram at point A is shown.
[0022] Figure 3 This is a structural diagram of the drive assembly and the removal assembly of a metal removal device in a dehydrated vegetable product.
[0023] Figure 4 This is a structural diagram of the guide plate and collection plate of a metal removal device in a dehydrated vegetable product.
[0024] The diagram shows the following components: 1. Fixed column; 2. Support plate; 3. Vibration assembly; 301. Base plate; 302. First drive motor; 303. Eccentric wheel; 304. Transmission rod; 305. Sleeve rod; 306. Connecting plate; 4. Drive assembly; 401. Second drive motor; 402. First pulley; 403. Connecting belt; 5. Removal assembly; 501. Drive shaft; 502. First roller; 503. First conveyor belt; 504. Magnet; 6. Second roller; 7. Second pulley; 8. First transmission cylinder; 9. Second conveyor belt; 10. Second transmission cylinder; 11. First scraper; 12. Guide plate; 13. Collection plate; 14. Material box; 15. Funnel; 16. First baffle; 17. Vibrating screen; 18. Second baffle; 19. Debris box; 20. Second scraper. Detailed Implementation
[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0028] Example 1:
[0029] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a metal removal device for dehydrated vegetable products, including a fixed column 1, a support plate 2 fixedly connected to the outside of the fixed column 1, a vibration component 3 provided on the top of the support plate 2, and a driving component 4 and a removal component 5 respectively provided on the inner wall of the fixed column 1.
[0030] The fixed column 1 serves as the support frame for the entire device, providing the installation foundation and ensuring the relative stability of the various parts of the device. The support plate 2 provides an installation platform for the vibration component 3, enabling the vibration component 3 to be stably installed at a suitable position outside the fixed column 1. It should be noted that there are four sets of fixed columns 1, arranged at the four corners, working together to increase the stability of the device.
[0031] The vibration assembly 3 includes a base plate 301 fixed to the top of the support plate 2. A first drive motor 302 is fixedly connected to the top of the base plate 301. An eccentric wheel 303 is fixedly connected to the output end of the first drive motor 302. A transmission rod 304 is rotatably connected to the outer side of the eccentric wheel 303. A sleeve rod 305 is rotatably connected to one end of the transmission rod 304. A connecting plate 306 is fixedly connected to one end of the sleeve rod 305.
[0032] The base plate 301 fixes the first drive motor 302, providing a stable installation position for the first drive motor 302. By being fixedly connected to the support plate 2, the first drive motor 302 is fixed at a suitable height and position to ensure stability during operation. The first drive motor 302 provides power to drive the eccentric wheel 303 to rotate. The eccentric wheel 303 performs circular motion under the drive of the first drive motor 302. Its eccentric structure causes periodic force changes during the motion, resulting in reciprocating motion. This force is transmitted through the transmission rod 304, causing vibration of subsequent components. The transmission rod 304 transmits the vibration generated by the eccentric wheel 303 to the sleeve rod 305. The sleeve rod 305 connects the transmission rod 304 and the connecting plate 306, further transmitting the vibration transmitted by the transmission rod 304 to the connecting plate 306. The connecting plate 306 transmits the vibration to the vibrating screen 17, causing the vibrating screen 17 to vibrate and screen the material.
[0033] The rejection assembly 5 includes a drive shaft 501 rotatably connected to the inner wall of the fixed column 1, a first roller 502 fixedly connected to the outer side of the drive shaft 501, a first conveyor belt 503 being drivenly connected to the outer side of the first roller 502, and a magnet 504 installed on the inner wall of the first conveyor belt 503.
[0034] The drive shaft 501 supports the first roller 502, enabling it to rotate within the fixed column 1, thus providing a foundation for the movement of the first conveyor belt 503. Through bearings, it is rotatably connected to the inner wall of the fixed column 1, bearing the weight of the first roller 502 and the force generated during rotation, ensuring stable rotation of the first roller 502 and its transmission connection with the first conveyor belt 503, driving the first conveyor belt 503 and providing support for it. During the movement, magnets 504 installed on the inner wall attract metal impurities from the material, achieving metal removal. During movement, the magnets 504 on the inner wall of the first conveyor belt 503 generate a magnetic field, attracting metal impurities from the material and separating them from the vegetable products. It should be noted that the magnet 504 is a high-temperature resistant neodymium iron boron magnet, and the magnetic induction intensity is regularly tested using a teslameter. The magnet 504 needs to be embedded and bonded with high-strength epoxy resin at equal intervals. The first conveyor belt 503 is made of polyurethane (PU) elastomer with a thickness of 8-12mm, tear resistance ≥20MPa, oil and aging resistance, or neoprene rubber (CR) with a temperature resistance of -40~120℃ and corrosion resistance. The surface needs to be embossed to increase friction. Moreover, the first conveyor belt 503 adopts a three-layer composite structure with a food-grade silicone outer layer, a glass fiber reinforced mesh middle layer, and a soft magnetic alloy permalloy mesh with a magnetic permeability >5000 at the bottom layer, which greatly improves the magnetic field penetration efficiency and ensures that metal impurities are effectively adsorbed within a 0-5mm range on the surface of the conveyor belt.
[0035] Example 2:
[0036] This is the second embodiment of the present invention, which is based on the previous embodiment.
[0037] Specifically, the drive assembly 4 includes a second drive motor 401 fixedly connected to the bottom of the support plate 2 via a bracket. The output end of the second drive motor 401 is fixedly connected to a first pulley 402. A connecting belt 403 is driven to the outer side of the first pulley 402. The inner wall of the first pulley 402 is fixedly connected to the drive shaft 501 via a fixed shaft.
[0038] The second drive motor 401 provides power to the first pulley 402, driving the first pulley 402 to rotate. The first pulley 402 transmits the power of the second drive motor 401 to the second pulley 7 through the connecting belt 403, realizing the transmission of power and the conversion of speed. The connecting belt 403 connects the first pulley 402 and the second pulley 7, transmitting power so that the second pulley 7 rotates with the rotation of the first pulley 402. Power is transmitted by the friction between the connecting belt 403 and the first pulley 402 and the second pulley 7. When the first pulley 402 rotates, the friction drives the connecting belt 403 to move, which in turn drives the second pulley 7 to rotate. The second pulley 7 receives the power transmitted by the connecting belt 403, drives the first transmission cylinder 8 to rotate, and thus drives the second conveyor belt 9 to move.
[0039] Specifically, the inner wall of the connecting belt 403 is connected to the second pulley 7, the inner wall of the first conveyor belt 503 is connected to the second roller 6 via a rotating shaft, the inner wall of the connecting belt 403 is connected to the second pulley 7, and the inner wall of the second pulley 7 is fixedly connected to the first transmission cylinder 8 via a rotating shaft.
[0040] The first transmission cylinder 8 is connected to the second pulley 7, receiving power and driving the second conveyor belt 9 to move. It is used to transport vegetables after metal removal. The second pulley 7 receives power transmitted by the connecting belt 403, driving the first transmission cylinder 8 to rotate, thereby driving the second conveyor belt 9 to move. It should be noted that in order to improve the transmission and load-bearing capacity of the connecting belt 403, the wrap angle cannot be too small. Generally, the wrap angle α is required to be ≥120°, and in some cases, α is even required to be ≥150°. This is because a larger wrap angle can provide greater friction, thereby enhancing the stability and efficiency of the transmission. This technology is common knowledge to those skilled in the art and will not be elaborated on here.
[0041] Specifically, the outer side of the first transmission cylinder 8 is connected to the second transmission belt 9, and the inner wall of the second transmission belt 9 is connected to the second transmission cylinder 10.
[0042] The second conveyor belt 9 transports the dehydrated vegetable products after metal removal and performs secondary metal removal before transporting them to the subsequent process or collection location. The second transmission cylinder 10 cooperates with the first transmission cylinder 8 to support the second conveyor belt 9 and assist the second conveyor belt 9 in forming a cyclical motion path. It should be noted that the inner wall of the second conveyor belt 9 also has the same structure as the first conveyor belt 503 for secondary removal and transporting the removed vegetables to the collection plate 13.
[0043] Specifically, a second baffle 18 is fixedly connected to the outer side of the fixed column 1, and a first scraper 11 is fixedly connected to the inner wall of the second baffle 18.
[0044] The second baffle 18 prevents vegetables from falling from the side during the conveying process, and plays a guiding and protective role. The first scraper 11 scrapes off the metal impurities attached to the first conveyor belt 503, so that the metal impurities are separated from the first conveyor belt 503, making them easier to collect and process.
[0045] Specifically, a guide plate 12 is fixedly connected to the outside of the fixed column 1, and a collection plate 13 is fixedly connected to the bottom of the guide plate 12.
[0046] The guide plate 12 guides the vegetables after metal removal from the first conveyor belt 503 to slide smoothly onto the collection plate 13, serving as a guide. The collection plate 13 collects the dehydrated vegetable products after metal removal, facilitating further processing or allowing the vegetables to enter the next stage of the production line.
[0047] Example 3:
[0048] This is the third embodiment of the present invention, which is based on the first two embodiments.
[0049] Specifically, a material box 14 is fixedly connected to the inner wall of the fixed column 1, and a funnel 15 is fixedly connected to the top of the material box 14.
[0050] Material box 14 stores dehydrated vegetable products to be processed, providing a material source for vibrating screen 17. The dehydrated vegetable products are stored in a centralized manner, and the material is evenly transported to vibrating screen 17 through funnel 15. Funnel 15 guides the dehydrated vegetable products in material box 14 evenly onto vibrating screen 17, controlling the flow rate and distribution of the material.
[0051] Specifically, a first baffle 16 is fixedly connected to the outer side of the fixed column 1, and the inner wall of the first baffle 16 is slidably connected to the outer side of the connecting plate 306.
[0052] The first baffle 16 ensures that the vegetables screened by the vibrating screen 17 fall onto the first conveyor belt 503, preventing the vegetables from falling off the side.
[0053] Specifically, the bottom of the material box 14 is slidably connected to the vibrating screen 17 via a T-shaped guide groove, and the bottom of the vibrating screen 17 is fixedly connected to the bottom of the connecting plate 306.
[0054] Vibrating screen 17 vibrates under the drive of connecting plate 306, causing the material to jump and disperse on the screen surface, which is beneficial for separating metal impurities from vegetables. At the same time, it screens the material to remove some fine impurities or particles that do not meet the particle size requirements.
[0055] Specifically, a debris box 19 is fixedly connected to the outer side of the fixed column 1, and a second scraper 20 is fixedly connected to the inner wall of the debris box 19.
[0056] The debris box 19 collects debris or impurities generated during the metal removal process, keeping the working environment clean. The second scraper 20 scrapes away debris or impurities adhering to the first conveyor belt 503 or other components, causing them to fall into the debris box 19 for easy cleaning.
[0057] In operation, the first drive motor 302 is started to drive the eccentric wheel 303 to rotate, which in turn drives the transmission rod 304 connected to it. The transmission rod 304 drives the sleeve rod 305 to reciprocate, thereby driving the connecting plate 306 and the vibrating screen 17 to reciprocate. Then, the second drive motor 401 is started to rotate, driving the first roller 502 to rotate, and simultaneously driving the first pulley 402 to rotate. Then, the connecting belt 403 drives the second pulley 7 to rotate the first transmission drum 8. At this time, the first roller 502 drives the second roller 6 to rotate through the first conveyor belt 503 to form a cyclic conveying. Driven by the first transmission cylinder 8, the second transmission cylinder 10 rotates under the drive of the second transmission belt 9, forming a two-stage transmission structure. After the start-up is completed, the organic vegetables to be processed are poured into the funnel 15. After being screened by the vibrating screen 17, the vegetables and metal fragments fall evenly onto the first transmission belt 503. The metal fragments are effectively removed by the adsorption of the magnet 504 on its inner wall. The processed vegetables are then conveyed to the second transmission belt 9 for secondary removal. The adsorbed metal fragments are scraped off by the first scraper 11 and the second scraper 20 and fall into the debris box 19. The processed vegetables are then introduced into the collection plate 13 for subsequent processing.
[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A metal removal device for dehydrated vegetable products, comprising a fixed column (1), characterized in that: A support plate (2) is fixedly connected to the outside of the fixed column (1), and a vibration component (3) is provided on the top of the support plate (2). A drive component (4) and a rejection component (5) are respectively provided on the inner wall of the fixed column (1). The vibration assembly (3) includes a base plate (301) fixed to the top of the support plate (2), a first drive motor (302) is fixedly connected to the top of the base plate (301), an eccentric wheel (303) is fixedly connected to the output end of the first drive motor (302), a transmission rod (304) is rotatably connected to the outer side of the eccentric wheel (303), a sleeve rod (305) is rotatably connected to one end of the transmission rod (304), and a connecting plate (306) is fixedly connected to one end of the sleeve rod (305). The rejection assembly (5) includes a drive shaft (501) rotatably connected to the inner wall of the fixed column (1), a first roller (502) is fixedly connected to the outer side of the drive shaft (501), a first conveyor belt (503) is drivenly connected to the outer side of the first roller (502), and a magnet (504) is installed on the inner wall of the first conveyor belt (503).
2. The metal removal device for dehydrated vegetable products as described in claim 1, characterized in that: The drive assembly (4) includes a second drive motor (401) fixedly connected to the bottom of the support plate (2) via a bracket. The output end of the second drive motor (401) is fixedly connected to a first pulley (402). A connecting belt (403) is driven to the outer side of the first pulley (402). The inner wall of the first pulley (402) is fixedly connected to the drive shaft (501) via a fixed shaft.
3. The metal removal device for dehydrated vegetable products as described in claim 2, characterized in that: The inner wall of the connecting belt (403) is connected to a second pulley (7), the inner wall of the first conveyor belt (503) is connected to a second roller (6) via a rotating shaft, the inner wall of the connecting belt (403) is connected to a second pulley (7), and the inner wall of the second pulley (7) is fixedly connected to a first transmission cylinder (8) via a rotating shaft.
4. The metal removal device for dehydrated vegetable products as described in claim 3, characterized in that: The outer side of the first transmission cylinder (8) is connected to the second transmission belt (9), and the inner wall of the second transmission belt (9) is connected to the second transmission cylinder (10).
5. The metal removal device for dehydrated vegetable products as described in claim 1, characterized in that: A second baffle (18) is fixedly connected to the outer side of the fixed column (1), and a first scraper (11) is fixedly connected to the inner wall of the second baffle (18).
6. The metal removal device for dehydrated vegetable products as described in claim 1, characterized in that: A guide plate (12) is fixedly connected to the outside of the fixed column (1), and a collection plate (13) is fixedly connected to the bottom of the guide plate (12).
7. The metal removal device for dehydrated vegetable products as described in claim 1, characterized in that: A material box (14) is fixedly connected to the inner wall of the fixed column (1), and a funnel (15) is fixedly connected to the top of the material box (14).
8. The metal removal device for dehydrated vegetable products as described in claim 1, characterized in that: The outer side of the fixed column (1) is fixedly connected to a first baffle (16), and the inner wall of the first baffle (16) is slidably connected to the outer side of the connecting plate (306).
9. The metal removal device for dehydrated vegetable products as described in claim 7, characterized in that: The bottom of the material box (14) is slidably connected to a vibrating screen (17) via a T-shaped guide groove, and the bottom of the vibrating screen (17) is fixedly connected to the bottom of the connecting plate (306).
10. The metal removal device for dehydrated vegetable products as described in claim 1, characterized in that: A debris box (19) is fixedly connected to the outer side of the fixed column (1), and a second scraper (20) is fixedly connected to the inner wall of the debris box (19).
