Screening mechanism for raw material grading

Abstract

The utility model relates to the technical field of material screening, in particular to a screening mechanism for raw material grading, which comprises a first screening frame, a second screening frame, a collecting frame, a connecting device, a conveying device and an auxiliary screening device, a first screening plate is arranged on the bottom wall of the first screening frame, and the connecting device comprises an electromagnet, a square groove and an iron block. Four sets of electromagnets are annularly installed at the bottom end of a first screen frame, four sets of square grooves are annularly formed in the top end of a second screen frame, iron blocks are installed in the square grooves, the electromagnets are magnetically connected with the iron blocks, and a material layer can be continuously disturbed through rotation movement of an auxiliary plate; materials are more evenly distributed on the screen face, so that the screening efficiency is improved, preliminary screening is conducted through the first screen plate, coarse materials stay on the first screen plate, the number of layers of the second screen frame can be increased according to the actual raw material situation needing to be screened, and multi-stage screening of the raw materials is conveniently achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of material screening, in particular to a screening mechanism for raw material classification. Background Art

[0002] As we all know, in current industrial production, raw material grading and screening is a crucial link, which directly determines the efficiency and quality of the subsequent production process.

[0003] The traditional raw material grading and screening mechanism has some limitations in design, such as the inconvenient assembly and disassembly of the screen frame, low screening efficiency, and easy clogging of materials. These problems not only affect production efficiency, but also increase the cost of equipment maintenance. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a screening mechanism for raw material classification.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening mechanism for raw material grading, comprising a first screen frame, a second screen frame, a collecting frame, a connecting device, a conveying device and an auxiliary screening device, the bottom wall of the first screen frame is equipped with a first screen plate, the connecting device comprises an electromagnet, a square groove and an iron block, the bottom end of the first screen frame is annularly equipped with four groups of the electromagnets, the top of the second screen frame is annularly provided with four groups of the square grooves, the iron blocks are installed in the square grooves, the electromagnets and the iron blocks are magnetically connected, the auxiliary screening device comprises a first motor, a rotating shaft and an auxiliary plate, the bottom wall of the first screen plate is equipped with the first motor, the output end of the first motor passes through the first screen plate and is equipped with the rotating shaft, the side wall of the rotating shaft is equipped with the auxiliary plate, the bottom wall of the second screen frame is equipped with the second screen plate, the bottom end of the second screen frame is equipped with the collecting frame through the connecting device, the auxiliary screening device is installed in the second screen frame, the bottom wall of the collecting frame is equipped with a vibration motor, and the side walls of the first screen frame, the second screen frame and the collecting frame are all equipped with the conveying device.

[0008] In order to facilitate the output of the screened raw materials, the utility model is improved in that the conveying device includes a conveying pipe, a feeding pipe, a second motor, a driving shaft and a spiral conveying wheel; the side walls of the first screen frame, the second screen frame and the collecting frame are all installed with the conveying pipe, the other end of the conveying pipe is installed with the second motor, the output end of the second motor passes through the side wall of the conveying pipe and is installed with the driving shaft, the outer wall of the driving shaft is installed with the spiral conveying wheel, and the feeding pipe is installed with the bottom wall of the conveying pipe near the second motor.

[0009] In order to facilitate the control of the opening and closing of the conveying device, the utility model is improved in that an arc groove is provided at the top end of the conveying pipe, and a blocking plate is movably installed in the arc groove.

[0010] In order to facilitate the adaptation to the arc-shaped groove, the utility model is improved in that the blocking plate is designed to be arc-shaped.

[0011] In order to facilitate the movement of the blocking plate, the utility model is improved in that a push block is installed on the top end of the blocking plate.

[0012] In order to ensure the stable placement of the collecting frame, the utility model is improved in that supporting legs are installed at the four corners of the bottom end of the collecting frame.

[0013] In order to block the top of the first screen frame, the utility model is improved in that a cover plate is installed on the top of the first screen frame, and a feed port is opened on the cover plate.

[0014] In order to facilitate the feeding of raw materials, the utility model is improved in that a feeding hopper is installed on the feeding port.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a screening mechanism for raw material classification, which has the following beneficial effects:

[0017] The screening mechanism for raw material grading can quickly realize the assembly and disassembly of the screen frame through the provided connecting device and the magnetic connection of the electromagnet, thereby improving the working efficiency. The magnetic connection between the electromagnet and the iron block ensures the stability between the screen frames and avoids equipment damage caused by leakage or vibration of materials during the screening process. Since the screen frames are connected by the electromagnet, the screen frames can be easily separated for cleaning and maintenance, thereby reducing the maintenance cost.

[0018] The screening mechanism for raw material grading, through the auxiliary screening device provided, the rotating shaft drives the auxiliary plate to rotate to continuously disturb the material layer, so that the material is more evenly distributed on the screen surface, avoiding the accumulation and clogging of the material on the screen surface, thereby improving the screening efficiency and reducing the sliding resistance of the material on the screen surface. Due to the effect of the auxiliary plate, the material is more evenly distributed on the screen surface, and the service life is extended.

[0019] The screening mechanism for raw material grading, through the provided conveying device, the design of the spiral conveying wheel ensures that the material can flow continuously and stably in the conveying pipe, thereby realizing efficient conveying. The structure of the spiral conveying wheel can effectively reduce the problem of material blockage during the conveying process, ensuring smooth conveying. Through the cooperation of the conveying pipe and the discharge pipe, it can be ensured that the material is accurately conveyed to the specified position and collected through the discharge pipe, reducing the loss and waste of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the first angle separation three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the second angle separation three-dimensional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the conveying device of the utility model;

[0023] Figure 4 It is a schematic diagram of the half-section three-dimensional structure of the delivery pipe of the utility model.

[0024] In the figure: 1. first screen frame; 2. second screen frame; 3. collecting frame; 4. first screen plate; 5. electromagnet; 6. square groove; 7. iron block; 8. first motor; 9. rotating shaft; 10. auxiliary plate; 11. second screen plate; 12. conveying pipe; 13. feeding pipe; 14. second motor; 15. driving shaft; 16. spiral conveying wheel; 17. arc groove; 18. blocking plate; 19. pushing block; 20. supporting leg; 21. cover plate; 22. feeding port; 23. feeding hopper. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4, a screening mechanism for raw material grading, comprising a first screen frame 1, a second screen frame 2, a collecting frame 3, a connecting device, a conveying device and an auxiliary screening device, wherein a first screen plate 4 is installed on the bottom wall of the first screen frame 1, and the connecting device comprises an electromagnet 5, a square groove 6 and an iron block 7, four groups of the electromagnets 5 are installed in a ring shape at the bottom end of the first screen frame 1, and four groups of the square grooves 6 are opened in a ring shape at the top end of the second screen frame 2, and the iron block 7 is installed in the square groove 6, and the electromagnet 5 and the iron block 7 are magnetically connected, and the auxiliary screening device comprises a first motor 8, a rotating shaft 9 and an auxiliary plate 10, and the first motor 8 is installed on the bottom wall of the first screen plate 4, The output end of the first motor 8 passes through the first sieve plate 4 and is installed with the rotating shaft 9, the side wall of the rotating shaft 9 is installed with the auxiliary plate 10, the bottom wall of the second sieve frame 2 is installed with the second sieve plate 11, the bottom end of the second sieve frame 2 is installed with the collecting frame 3 through the connecting device, the auxiliary screening device is installed in the second sieve frame 2, the bottom wall of the collecting frame 3 is installed with a vibration motor, the side walls of the first sieve frame 1, the second sieve frame 2 and the collecting frame 3 are all installed with the conveying device. In this embodiment, when in use, first install the first sieve frame 1 to the top of the second sieve frame 2 through the connecting device, when the electromagnet 5 enters the corresponding square slot 6 and is energized, it The first screen frame 1 and the second screen frame 2 are tightly connected together by generating a magnetic attraction between them and the iron block 7. When separation is required, the power supply of the electromagnet 5 only needs to be cut off, the magnetic attraction disappears, and the two screen frames can be easily separated. The first screen frame 1 and the second screen frame 2 can be quickly assembled and disassembled through the magnetic connection of the electromagnet 5, thereby improving the working efficiency. Then, the second screen frame 2 is also installed on the top of the collecting frame 3 through the connecting device. Then, the raw material first enters the first screen frame 1, and the first motor 8 and the vibration motor are started at the same time. The vibration motor drives the whole to vibrate, thereby achieving the effect of vibration screening. The first motor 8 drives the rotating shaft 9 to rotate, thereby driving the auxiliary plate 10 to rotate on the screen surface. The rotational motion of the auxiliary plate 10 can continuously disturb the material layer, so that the material is more evenly distributed on the screen surface, avoiding the accumulation and blockage of the material on the screen surface, thereby improving the screening efficiency. The first screen plate 4 is used for preliminary screening, and the coarser materials stay on the first screen plate 4. The screened materials enter the second screen frame 2 and are further screened by the auxiliary screening device on the second screen plate 11. The materials smaller than the size of the first screen plate 4 stay on the second screen plate 11, and then the materials screened by the second screen plate 11 finally enter the collecting frame 3. The number of layers of the second screen frame 2 can be increased according to the actual situation of the raw material to be screened, so as to realize multi-stage screening of the raw material.

[0027] In actual use, it is further convenient to output the screened raw materials. In this embodiment, the conveying device includes a conveying pipe 12, a discharge pipe 13, a second motor 14, a driving shaft 15 and a spiral conveying wheel 16. The side walls of the first screen frame 1, the second screen frame 2 and the collecting frame 3 are all installed with the conveying pipe 12, and the other end of the conveying pipe 12 is installed with the second motor 14. The output end of the second motor 14 passes through the side wall of the conveying pipe 12 and is installed with the driving shaft 15. The outer wall of the driving shaft 15 is installed with the spiral conveying wheel 16. The discharge pipe 13 is installed on the bottom wall of the conveying pipe 12 close to the second motor 14. The driving shaft 15 is driven to rotate by the second motor 14, thereby driving the spiral conveying wheel 16 to rotate in the conveying pipe 12. When the second motor 14 is started, its output end drives the driving shaft 15 to start rotating. A spiral conveying wheel 16 is installed on the outer wall of the driving shaft 15. As the driving shaft 15 rotates, the spiral conveying wheel 16 also starts to rotate. Due to the special structure of the spiral conveying wheel 16, it can push the material from one end of the conveying pipe 12 to the other end. The material enters the corresponding conveying pipe 12 from the side walls of the first screen frame 1, the second screen frame 2 or the collecting frame 3. Under the pushing action of the spiral conveying wheel 16, the material moves along the conveying pipe 12 and is finally discharged from the other end of the conveying pipe 12. A discharge pipe 13 is installed on the bottom wall of the conveying pipe 12 close to the second motor 14. When the material is pushed to the other end of the conveying pipe 12, it will be discharged along the discharge pipe 13, thereby realizing the transportation and collection of the screened material.

[0028] In actual use, it is further convenient to control the opening and closing of the conveying device. In this embodiment, an arc groove 17 is opened at the top of the conveying pipe 12, and a blocking plate 18 is movably installed in the arc groove 17. By moving the blocking plate 18 in the arc groove 17, the opening or closing of the conveying pipe 12 can be quickly and easily controlled without the need for a complicated mechanical structure or operating system, making the operation simpler and more intuitive.

[0029] In actual use, it is further convenient to adapt the arc groove 17. In this embodiment, the blocking plate 18 is arc-shaped, and the arc-shaped blocking plate 18 can perfectly fit the shape of the arc groove 17, thereby ensuring that in the closed state, the sealing performance between the two reaches the best state and reduces the leakage of raw materials.

[0030] In actual use, it is further convenient to move the blocking plate 18. In this embodiment, a push block 19 is installed on the top of the blocking plate 18. The push block 19 provides the operator with a clear force point, making it easier and more direct to push the blocking plate 18. There is no need to find or grab the edge of the blocking plate 18. The blocking plate 18 can be easily moved by gently pushing the push block 19, which greatly improves the convenience of operation.

[0031] In actual use, in order to further ensure the stable placement of the collecting frame 3, in this embodiment, support legs 20 are installed at the four corners of the bottom end of the collecting frame 3, and the design of the support legs 20 can ensure the stability of the collecting frame 3 when it is placed.

[0032] During actual use, the top of the first screen frame 1 is further blocked. In this embodiment, a cover plate 21 is installed on the top of the first screen frame 1. A feed port 22 is opened on the cover plate 21. The cover plate 21 closes the top of the first screen frame 1, thereby reducing the possibility of dust generated during the raw material screening process spreading to the outside, which is conducive to keeping the working environment clean.

[0033] In actual use, in order to further facilitate the feeding of raw materials, in this embodiment, a feed hopper 23 is installed on the feed port 22. The feed hopper 23 can ensure that the raw materials will not be scattered or splashed during the feeding process, which helps to reduce the waste of raw materials. The feed hopper 23 provides a centralized and orderly feeding area, making the feeding process of the raw materials faster and more efficient.

[0034] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening mechanism for raw material classification, comprising a first screen frame (1), a second screen frame (2), a collecting frame (3), a connecting device, a conveying device and an auxiliary screening device, characterized in that: The first sieve frame (1) is provided with a first sieve plate (4) on the bottom wall thereof; the connecting device comprises an electromagnet (5), a square groove (6) and an iron block (7); four groups of the electromagnets (5) are provided in a ring shape at the bottom end of the first sieve frame (1); four groups of the square grooves (6) are provided in a ring shape at the top end of the second sieve frame (2); the iron blocks (7) are provided in the square grooves (6); the electromagnets (5) and the iron blocks (7) are magnetically connected; the auxiliary screening device comprises a first motor (8), a rotating shaft (9) and an auxiliary plate (10); the first sieve plate (4) is provided with ... A motor (8), wherein the output end of the first motor (8) passes through the first sieve plate (4) and is provided with the rotating shaft (9), the side wall of the rotating shaft (9) is provided with the auxiliary plate (10), the bottom wall of the second sieve frame (2) is provided with the second sieve plate (11), the bottom end of the second sieve frame (2) is provided with the collecting frame (3) via the connecting device, the auxiliary screening device is provided in the second sieve frame (2), the bottom wall of the collecting frame (3) is provided with a vibration motor, and the side walls of the first sieve frame (1), the second sieve frame (2) and the collecting frame (3) are provided with the conveying device.

2. The screening mechanism for raw material classification according to claim 1, characterized in that: The conveying device comprises a conveying pipe (12), a feeding pipe (13), a second motor (14), a driving shaft (15) and a spiral conveying wheel (16); the side walls of the first screen frame (1), the second screen frame (2) and the collecting frame (3) are all installed with the conveying pipe (12); the other end of the conveying pipe (12) is installed with the second motor (14); the output end of the second motor (14) passes through the side wall of the conveying pipe (12) and is installed with the driving shaft (15); the outer wall of the driving shaft (15) is installed with the spiral conveying wheel (16); the feeding pipe (13) is installed on the bottom wall of the conveying pipe (12) close to the second motor (14).

3. The screening mechanism for raw material classification according to claim 2, characterized in that: The top end of the delivery pipe (12) is provided with an arc-shaped groove (17), and a blocking plate (18) is movably installed in the arc-shaped groove (17).

4. The screening mechanism for raw material classification according to claim 3, characterized in that: The blocking plate (18) is designed to be arc-shaped.

5. The screening mechanism for raw material classification according to claim 4, characterized in that: A push block (19) is installed on the top end of the blocking plate (18).

6. The screening mechanism for raw material classification according to claim 5, characterized in that: Support legs (20) are installed at the four corners of the bottom end of the collecting frame (3).

7. The screening mechanism for raw material classification according to claim 6, characterized in that: A cover plate (21) is installed on the top of the first screen frame (1), and a feed port (22) is provided on the cover plate (21).

8. The screening mechanism for raw material classification according to claim 7, characterized in that: A feeding hopper (23) is installed on the feeding port (22).

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