Magnetic separation device for food processing

Abstract

The magnetic separation device for food processing comprises a machine box, a feeding port is formed in the top of the machine box, a discharging groove and an impurity groove are formed in the bottom of the machine box, a roller is rotationally connected into the machine box, a magnet is arranged in the front semicircle of the roller, and a discharging structure used for preventing materials from being stacked is arranged at the feeding port. The discharging structure comprises a grid plate vertically sliding in the feeding port, the roller is connected with a driving mechanism, and the driving mechanism drives the grid plate to shake up and down while driving the roller to rotate. Through the arrangement of the discharging structure, the flow of materials can be limited, so that the magnetic separation effect is prevented from being influenced by material accumulation.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment for food processing, in particular to a magnetic separation device for food processing. Background Art

[0002] To ensure food quality, raw materials must be passed through a magnetic separator before processing to remove magnetic impurities. This separator consists of a magnetic drum with a permanent magnet mounted in its front semicircle. During magnetic separation, materials containing magnetic impurities fall onto the drum. As the drum rotates, the material is thrown in the direction of rotation and falls into a discharge chute. The magnetic impurities are attracted to the drum by the magnetic field and rotate synchronously with it. When the drum reaches a point where it is free from the magnetic field, the impurities escape and fall into an impurity trough. During this process, materials tend to accumulate on the drum. If the accumulation is thick, magnetic impurities on the surface of the material, away from the magnetic field, become difficult to attract, affecting the magnetic separation effect. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a magnetic separation device for food processing so as to improve the magnetic separation effect.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] A magnetic separation device for food processing includes a chassis, a feed port is provided on the top of the chassis, a discharge trough and an impurity trough are provided on the bottom of the chassis, a roller is rotatably connected inside the chassis, a magnet is provided in the front semicircle of the roller, the feed port is provided with a discharge structure for preventing material accumulation, the discharge structure includes a grid plate that slides vertically in the feed port, the roller is connected to a driving mechanism, and the driving mechanism drives the grid plate to vibrate up and down while driving the roller to rotate.

[0006] Principle of this utility model:

[0007] After the material enters from the feed port, it will first pass through the mesh plate. The material passes through the mesh holes of the mesh plate, which can limit the flow of the material, thereby preventing a large amount of material from falling directly on the magnetic drum, causing accumulation and affecting the magnetic separation effect.

[0008] During the magnetic separation process, the driving mechanism drives the drum to rotate and at the same time drives the mesh plate to shake up and down to prevent excessive accumulation of materials on the top of the mesh plate, causing clogging of the mesh.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. This solution can limit the flow of materials by setting up grid plates to avoid material accumulation affecting the magnetic separation effect;

[0011] 2. This solution can avoid the accumulation of materials on the grid plate and cause mesh blockage by setting up a discharge structure;

[0012] 3. The discharge structure and the roller in this solution can be driven together by a driving mechanism, which can save power source and equipment cost.

[0013] As a preferred embodiment of the present invention, the driving mechanism includes a motor, a first driving shaft is fixed between the output end of the motor and the power input end of the roller, a driving wheel is fixed on the first driving shaft, a second driving shaft is rotatably connected to one side of the feed port, a driven wheel cooperating with the driving wheel is fixed on the second driving shaft, one end of the second driving shaft penetrates into the feed port and a cam is fixed at the penetration end, and the cam is abutted against the lower end surface of the grid plate.

[0014] When using this solution, the motor drives the driving wheel, which in turn drives the driven wheel, which in turn drives the second drive shaft and the cam fixed to the second drive shaft. The cam is located below the mesh plate. When the contact surface between the cam and the mesh plate changes from proximal to distal, the mesh plate moves upward. Conversely, when the contact surface changes from distal to proximal, the mesh plate moves downward. Therefore, when the motor drives the drum to rotate, the cam rotates synchronously, driving the mesh plate to reciprocate up and down.

[0015] As a preferred embodiment of the present invention, the mesh plate includes a frame and a mesh plate. The frame is fixed to the mesh plate circumference. The lower end surface of one side of the frame is provided with a groove that fits the outer edge of the cam. The outer edge of the cam is seated in the groove. The groove in this embodiment can serve as a limit for the cam, making the connection between the cam and the mesh plate more stable and facilitating actuation.

[0016] As a preferred embodiment of the present invention, the front side of the chassis is provided with an arc-shaped cover that fits the drum. The gap between the cover and the drum forms a magnetic separation channel, which extends to the bottom of the chassis and connects to the discharge chute. This solution facilitates maintenance of the interior of the magnetic separator by providing a cover.

[0017] As a preferred embodiment of the present invention, an extension plate is provided below the feed port on the side away from the magnetic separation channel, and the lower end surface of the extension plate is in contact with the surface of the drum. The extension plate in this solution can prevent the material from directly falling into the impurity tank after entering the chassis from the feed port, thereby affecting the discharge rate.

[0018] As a preferred embodiment of the present invention, the upper end of the box cover is hinged to the chassis, and the lower end of the box cover is provided with a connecting structure connected to the chassis. The connecting structure includes a notch formed on the side of the box cover near the chassis, a protrusion is provided on the chassis to match the notch, a mounting groove is formed on the protrusion at a position connected to the notch, and an elastic mounting block is provided on the side wall of the notch to match the mounting groove, and the elastic mounting block is matched with the mounting groove. This solution can facilitate opening and closing the box cover by using the elastic mounting block to match the mounting groove. When in use, only a slight pull is needed to disengage the elastic mounting block from the mounting groove to open the box cover. When closing the box cover, only a slight push is needed to insert the elastic mounting block into the mounting groove to secure it. The operation is simple and convenient.

[0019] As a preferred embodiment of the present invention, the box cover is made of a transparent material. During the magnetic separation process, the adhesion of magnetic impurities to the drum is affected by factors such as the impurity content of the raw material, the magnetic field strength of the drum, and the feed amount. If too much magnetic impurities adhere to the drum, the contact area between the drum and the material is reduced, which will affect the magnetic separation effect. Therefore, this solution sets the box cover to a transparent material so that the internal situation of the magnetic separator can be observed in time during the magnetic separation operation to adjust the feed amount and avoid excessive adhesion of magnetic impurities, which will affect the magnetic separation effect and block the channels between the slots. However, the chassis of the existing magnetic separator is opaque and inconvenient to observe, and once the closed magnetic separator is blocked, the entire chassis needs to be disassembled, which is more troublesome to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0021] Figure 2 It is a cross-sectional view of an embodiment of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the driving mechanism in an embodiment of the present utility model;

[0023] Figure 4 It is a side view of the driving mechanism in the embodiment of the utility model;

[0024] Figure 5 yes Figure 2 Magnified view of area A in the middle.

[0025] Reference numerals include:

[0026] Chassis 1, roller 2, protrusion 21, mounting groove 22, power input end 23, magnet 3, mounting shaft 31, box cover 4, notch 41, elastic mounting block 42, feed port 5, limit groove 51, extension plate 52, grid plate 6, frame 61, mesh plate 62, discharge trough 7, impurity trough 8, drive mechanism 9, driving wheel 91, first drive shaft 911, driven wheel 92, second drive shaft 921, cam 922, belt 93, motor 94, support frame 10. DETAILED DESCRIPTION

[0027] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes and are not intended to limit the present invention.

[0028] In the description of this application, the terms "top", "bottom", "one end", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0029] See also Figure 1 and Figure 2 As shown, this embodiment discloses a magnetic separation device for food processing, including a chassis 1, a feed port 5 is installed on the top of the chassis 1, a discharge chute 7 and an impurity chute 8 are installed on the bottom of the chassis 1, a drum 2 is rotatably connected to the chassis 1, and an arc-shaped magnet 3 is provided in the front semicircle of the drum 2. For details, see Figure 4 As shown, a mounting shaft 31 is fixed inside the chassis 1, and the magnet 3 is fixed on the mounting shaft 31. The magnet 3 is located inside the drum 2 and does not contact the drum 2. Both ends of the drum 2 are connected to the chassis 1 through bearings respectively. The power input end 23 of the drum 2 extends out of the chassis 1 and is connected to the drive mechanism 9.

[0030] The feed port 5 is provided with a discharge structure for preventing material accumulation. The discharge structure includes a grid plate 6 provided in the feed port 5. The driving mechanism 9 can drive the grid plate 6 to shake up and down. For details, see Figure 3 and Figure 4As shown, the drive mechanism 9 includes a motor 94. A first drive shaft 911 is fixed between the output end of the motor 94 and the power input end 23 of the drum 2. A driving pulley 91 is fixed to the first drive shaft 911. A second drive shaft 921 is rotatably connected to one side of the feed port 5. A driven pulley 92 is fixed to the second drive shaft 921. The driving pulley 91 and the driven pulley 92 are connected by a belt 93. One end of the second drive shaft 921 penetrates into the feed port 5. A cam 922 is fixed to the penetration end. The cam 922 abuts against the lower end surface of the grid plate 6. The grid plate 6 includes a frame 61 and a mesh plate 62. The frame 61 is fixed to the mesh plate 62 in the circumferential direction. A limiting groove 51 is circumferentially opened on the inner side wall of the feed port 5. The frame 61 is inserted into the limiting groove 51. Under the guidance of the limiting groove 51, the grid plate 6 can slide vertically in the feed port 5. The outer edge of the cam 922 abuts against the frame 61. In order to make the connection between the cam 922 and the grid plate 6 more stable, a groove is opened on the lower side of the frame 61 to match the outer edge of the cam 922, and the outer edge of the cam 922 is placed in the groove.

[0031] During operation, the motor 94 is started, which drives the drum 2 and the driving wheel 91 to rotate. The driving wheel 91 drives the driven wheel 92 to rotate, which drives the second drive shaft 921 and the cam 922 fixed to the second drive shaft 921 to rotate. The cam 922 is located below the mesh plate 6. When the contact surface of the cam 922 and the mesh plate 6 changes from the proximal end to the distal end, the mesh plate 6 moves upward. Conversely, when the contact surface changes from the distal end to the proximal end, the mesh plate 6 moves downward. Therefore, driven by the motor 94, the drum 2 rotates to perform magnetic separation. The rotation of the cam 922 drives the mesh plate 6 to reciprocate up and down, preventing material from accumulating on the mesh plate 6 and causing the mesh to clog.

[0032] The front side of the chassis 1 is provided with an arc-shaped cover 4 that matches the roller 2. The cover 4 is made of transparent material. The gap between the cover 4 and the roller 2 forms a magnetic separation channel, which extends to the bottom of the chassis 1 and is connected to the discharge chute 7. For details, see Figure 5 As shown, the upper end of the box cover 4 is hinged to the chassis 1, and the lower end is provided with a connecting structure connected to the chassis 1. The connecting structure includes a notch 41 formed on the side of the box cover 4 near the chassis 1. The edge of the chassis 1 is integrally formed with a protrusion 21 that matches the notch 41. The protrusion 21 has a mounting groove 22 formed at the position connecting to the notch 41. The side wall of the notch 41 is fixed with an elastic mounting block 42 that matches the mounting groove 22. The elastic mounting block 42 cooperates with the mounting groove 22. The outer side of the box cover 4 is also provided with a handle. When in use, the handle is grasped and slightly pulled to disengage the elastic mounting block 42 from the mounting groove 22, thereby opening the box cover 4. When closing the box cover 4, a slight push is applied to cause the elastic mounting block 42 to extend into the mounting groove 22, securing the box cover 4. Operation is simple and convenient.

[0033] After the material enters from the feed port 5, it first passes through the mesh plate 6 and then falls on the drum 2. In order to prevent the material from sliding from the drum 2 into the impurity tank 8, an extension plate 52 is integrally formed below the side of the feed port 5 away from the magnetic separation channel, and the lower end surface of the extension plate 52 is in contact with the surface of the drum 2.

[0034] Specific implementation process:

[0035] Before adding material, start motor 94. Motor 94 drives drum 2 to rotate and simultaneously drives mesh plate 6 to vibrate up and down. After motor 94 starts, add material. The material passes through mesh plate 6 and falls onto drum 2. Then, as drum 2 rotates, the material enters the magnetic separation channel. During the magnetic separation process, the material is ejected in the direction of drum rotation and falls into discharge chute 7. Magnetic impurities are adsorbed on drum 2 and rotate synchronously with drum 2 until drum 2 reaches an area where it is free from the magnetic field. The magnetic impurities then escape from drum 2 and fall into impurity chute 8.

[0036] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A magnetic separation device for food processing, comprising a chassis, a feed inlet is arranged at the top of the chassis, a discharge trough and an impurity trough are arranged at the bottom of the chassis, a drum is rotatably connected in the chassis, a magnet is arranged in the front semicircle of the drum, and the characteristics are: The feed port is provided with a discharge structure for preventing material accumulation, and the discharge structure includes a mesh plate that slides vertically in the feed port, and the roller is connected to a driving mechanism, which drives the mesh plate to vibrate up and down while driving the roller to rotate.

2. The magnetic separation device for food processing according to claim 1, characterized in that: The driving mechanism includes a motor, a first driving shaft is fixed between the output end of the motor and the power input end of the drum, a driving wheel is fixed on the first driving shaft, a second driving shaft is rotatably connected to one side of the feed port, a driven wheel cooperating with the driving wheel is fixed on the second driving shaft, one end of the second driving shaft penetrates into the feed port and a cam is fixed at the penetration end, and the cam abuts against the lower end surface of the grid plate.

3. The magnetic separation device for food processing according to claim 2, characterized in that: The grid plate comprises a frame and a mesh plate. The frame is fixed on the mesh plate in the circumference. A groove matching the outer edge of a cam is formed on the lower end surface of one side of the frame. The outer edge of the cam is placed in the groove.

4. The magnetic separation device for food processing according to claim 1, characterized in that: The front side of the chassis is provided with an arc-shaped chassis cover that matches the roller, and the gap between the chassis cover and the roller forms a magnetic separation channel, which extends to the bottom end of the chassis and is connected to the discharge chute.

5. The magnetic separation device for food processing according to claim 4, characterized in that: An extension plate is arranged below the feeding port on a side away from the magnetic separation channel, and the lower end surface of the extension plate is attached to the surface of the drum.

6. The magnetic separation device for food processing according to claim 4, characterized in that: The upper end of the box cover is hinged to the chassis, and the lower end of the box cover is provided with a connecting structure connected to the chassis. The connecting structure includes a notch opened on the side of the box cover close to the chassis, a protrusion is provided on the chassis to match the notch, a mounting groove is provided on the position of the protrusion connected to the notch, and an elastic mounting block is provided on the side wall of the notch to match the mounting groove, and the elastic mounting block matches the mounting groove.

7. The magnetic separation device for food processing according to claim 4, characterized in that: The box cover is made of transparent material.

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