A grading screening device for reduced iron powder production

Abstract

The utility model relates to the technical field of screening device, and disclose a kind of grading screening device of reduced iron powder production, including sieve box, the bottom of sieve box is provided with base, damping device is installed between sieve box and base, vibration motor is installed in the inside of base, the top of vibration motor is connected with the bottom of sieve box by output, the top of sieve box is provided with box cover, the surface of sieve box is provided with multiple discharge ports.The grading screening device of reduced iron powder production, by rotating knob, make and its fixed screw rod and limit block rotate, and away from the side of crossbeam, crossbeam is not extruded at the same time, by the rebound force of spring, drive the plugboard to separate from the inside of slot, i.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, and in particular to a grading and screening device for the production of reduced iron powder. Background Technology

[0002] Reduced iron powder, which appears as a gray or black powder, is also known as a "double absorbent" because it can absorb moisture and oxygen from the air. It is often used for food preservation. Reduced iron powder needs to be graded and screened during production, so a grading and screening device for reducing iron powder production is required.

[0003] Traditional grading and screening devices for reducing iron powder production often use bolts to fix the screens, which is a complex operation that requires specific tools. This makes replacing damaged screens time-consuming and labor-intensive, increasing the workload of workers and ultimately affecting work efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of cumbersome screen replacement operation, which affects work efficiency. To this end, we propose a grading and screening device for the production of reduced iron powder.

[0005] To achieve the above objectives, this application adopts the following technical solution: a grading and screening device for reducing iron powder production, comprising a screen box, a base at the bottom of the screen box, a shock-absorbing device installed between the screen box and the base, a vibration motor installed inside the base, the top of the vibration motor connected to the bottom of the screen box via an output end, a box cover on the top of the screen box, multiple discharge ports on the surface of the screen box, two mounting brackets fixed inside the screen box, a screen mesh installed on the inner side of the mounting brackets, grooves on both sides of the screen mesh, a housing fixed inside the grooves, a screw threaded to the side wall of the housing, a knob fixed to one end of the screw, a limit block fixed to the end of the screw inside the housing, a horizontal plate slidably connected inside the housing, an insert plate fixed to one end of the horizontal plate, and slots for use with the insert plates on both sides inside the mounting brackets.

[0006] Preferably, springs are fixed at both ends of one side of the horizontal plate, and the other end of the spring is fixed to the inside of the housing.

[0007] Preferably, the limiting block is elliptical in shape.

[0008] Preferably, limit rods are fixed on both sides inside the housing, and limit grooves are provided at both ends of the horizontal plate to cooperate with the limit rods.

[0009] Preferably, the surface of the screw is fitted with an elastic sheet, and the elastic sheet is made of rubber.

[0010] Preferably, the surface of the knob has multiple strip grooves, which are distributed circumferentially.

[0011] Preferably, the top of the box lid is provided with a sealing cap.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, by rotating the knob, the screw and limiting block fixed to it rotate and move away from the side of the horizontal plate. While the horizontal plate is no longer squeezed, it is pushed by the spring's rebound force, causing the insert plate to disengage from the slot, thus releasing the screen. At this time, the user can quickly replace the screen, avoiding the problem of impurities entering due to screen wear or damage, ensuring that product quality is not affected. The replacement process is simple and improves replacement efficiency. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 is a cross-sectional structural diagram of this utility model;

[0016] Figure 3 is a schematic diagram of the screen structure of this utility model;

[0017] Figure 4 is a schematic diagram of the internal structure of the shell of this utility model.

[0018] Legend: 1. Screen box; 2. Base; 3. Shock absorber; 4. Vibration motor; 5. Box cover; 6. Discharge port; 7. Mounting frame; 8. Screen mesh; 9. Groove; 10. Housing; 11. Screw; 12. Knob; 13. Limiting block; 14. Horizontal plate; 15. Insert plate; 16. Slot; 17. Spring; 18. Limiting rod; 19. Limiting groove; 20. Elastic sheet; 21. Sealing cover. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] Reference Figures 1-4As shown, this utility model provides a technical solution: a grading and screening device for reducing iron powder production, including a sieve box 1, a base 2 at the bottom of the sieve box 1, a shock-absorbing device 3 installed between the sieve box 1 and the base 2, a vibration motor 4 installed inside the base 2, the top of the vibration motor 4 connected to the bottom of the sieve box 1 through an output end, a box cover 5 on the top of the sieve box 1, multiple discharge ports 6 on the surface of the sieve box 1, two mounting brackets 7 fixed inside the sieve box 1, a screen 8 installed on the inner side of the mounting brackets 7, grooves 9 on both sides of the screen 8, a housing 10 fixed inside the grooves 9, a screw 11 threadedly connected to the side wall of the housing 10, a knob 12 fixed to one end of the screw 11, a limit block 13 fixed to one end of the screw 11 inside the housing 10, a horizontal plate 14 slidably connected inside the housing 10, an insert plate 15 fixed to one end of the horizontal plate 14, slots 16 for use with the insert plate 15 on both sides inside the mounting brackets 7, and springs 17 fixed to both ends of one side of the horizontal plate 14.

[0021] The other end of the spring 17 is fixed to the inside of the housing 10. By rotating the knob 12, the screw 11 and the limiting block 13 fixed to it are rotated and moved away from the side of the horizontal plate 14. While the horizontal plate 14 is not squeezed, it is pushed by the rebound force of the spring 17, which drives the insert plate 15 to disengage from the inside of the slot 16, thereby releasing the fixation of the screen 8. At this time, the user can quickly replace the screen 8 to avoid the problem of impurities being mixed in due to wear or damage to the screen 8, ensuring that the product quality is not affected. The replacement process is simple and improves the replacement efficiency.

[0022] Reference Figure 4 As shown in this embodiment, the limiting block 13 is elliptical in shape. The elliptical design of the limiting block 13 reduces the contact area between the limiting block 13 and the horizontal plate 14, thereby making the movement between the limiting block 13 and the horizontal plate 14 smoother and less strenuous.

[0023] Reference Figure 4 As shown in this embodiment: Limiting rods 18 are fixed on both sides inside the housing 10, and limiting grooves 19 that cooperate with the limiting rods 18 are provided at both ends of the horizontal plate 14. Through the structure of the limiting rods 18 and the limiting grooves 19, the movement trajectory of the horizontal plate 14 is limited, making the horizontal plate 14 more stable when moving, avoiding the phenomenon of the horizontal plate 14 shifting or shaking during the movement, and improving the stability and reliability of the device.

[0024] Reference Figure 4As shown in this embodiment: an elastic sheet 20 is sleeved on the surface of the screw 11. The elastic sheet 20 is made of rubber. The design of the elastic sheet 20 with rubber material increases the firmness between the knob 12 and the housing 10, preventing the knob 12 from becoming loose. At the same time, the elastic sheet 20 can also protect the surface of the screw 11, preventing the screw 11 from rusting after long-term use and extending its service life.

[0025] Reference Figure 4 As shown in this embodiment, the surface of the knob 12 is provided with multiple strip grooves, which are distributed in a circular pattern. The design of the strip grooves increases the surface roughness of the knob 12, allowing the user's hand to better fit the knob 12 when rotating it, thus improving the stability and accuracy of the rotation.

[0026] Reference Figure 1 As shown in this embodiment: the top of the box cover 5 is provided with a sealing cover 21, which can seal the top of the device to prevent impurities from entering the device during use and ensure the cleanliness of the device.

[0027] Working principle: During use, the vibrating motor 4 classifies and screens the reduced iron powder. After screening, the user turns the knob 12 to rotate the screw 11 and the limiting block 13 fixed to it, moving them away from the side of the horizontal plate 14. While the horizontal plate 14 is not being squeezed, it is pushed by the rebound force of the spring 17, causing the insert plate 15 to disengage from the inside of the slot 16, thus releasing the fixation of the screen 8. At this time, the user can quickly replace the screen 8. After replacement, turn the knob 12 in the opposite direction to move the screw 11 and the limiting block 13 closer to the side of the horizontal plate 14 and squeeze the horizontal plate 14, causing the horizontal plate 14 to drive the insert plate 15 into the inside of the slot 16, fixing the screen 8. The reduced iron powder can then continue to be classified and screened. The whole process is simple and quick to operate, improving work efficiency.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grading and screening device for the production of reduced iron powder, comprising a sieve box, characterized in that: The bottom of the screen box is provided with a base, and a shock absorption device is installed between the screen box and the base. A vibration motor is installed inside the base, and the top of the vibration motor is connected to the bottom of the screen box through an output end. The top of the screen box is provided with a box cover, and the surface of the screen box is provided with multiple discharge ports. Two mounting brackets are fixed inside the screen box, and a screen is installed on the inner side of the mounting bracket. Grooves are opened on both sides of the screen. A housing is fixed inside the grooves, and a screw is threaded to the side wall of the housing. A knob is fixed to one end of the screw, and a limit block is fixed to the end of the screw inside the housing. A horizontal plate is slidably connected inside the housing, and an insert plate is fixed to one end of the horizontal plate. Slots that cooperate with the insert plates are opened on both sides inside the mounting bracket.

2. The grading and screening device for producing reduced iron powder according to claim 1, characterized in that: Springs are fixed at both ends of one side of the horizontal plate, and the other end of the spring is fixed to the inside of the housing.

3. The grading and screening device for producing reduced iron powder according to claim 1, characterized in that: The limiting block is elliptical in shape.

4. The grading and screening device for producing reduced iron powder according to claim 1, characterized in that: Limiting rods are fixed on both sides inside the housing, and limiting grooves are provided at both ends of the horizontal plate to cooperate with the limiting rods.

5. A grading and screening device for producing reduced iron powder according to claim 1, characterized in that: The surface of the screw is fitted with an elastic sheet, which is made of rubber.

6. The grading and screening device for producing reduced iron powder according to claim 1, characterized in that: The surface of the knob has multiple strip-shaped grooves, which are distributed circumferentially.

7. A grading and screening device for producing reduced iron powder according to claim 1, characterized in that: The top of the box lid is equipped with a sealing cap.

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