Anti-blocking vibration screening mechanism for feed port of grinding machine

Abstract

The utility model relates to the technical field of grinding machines, and particularly discloses a grinding machine feed port anti-blocking vibration screening mechanism which comprises a grinding machine body, the middle of the top of the grinding machine body is fixedly connected with a screening cavity, the top of the screening cavity is in threaded connection with a cover plate, and one side of the top of the cover plate is fixedly connected with a conveying channel. A first protective shell is fixedly connected to the top of the conveying channel, a spiral conveying blade is fixedly connected to the output end of a first driving motor, a feeding opening is fixedly connected to the interior of the supporting base, a high-frequency vibration motor is fixedly connected to the interior of the screening disc, and a pressure sensor is fixedly connected to the interior of the screening disc; the spiral conveying blade, the screening disc, the pressure sensor, the high-frequency vibration motor, the abutting rod and the beating block are used in cooperation, materials can smoothly enter the grinding machine body before being ground by the grinding machine body, blockage caused by the materials is avoided, meanwhile, the materials can be screened step by step when falling, and the service life of the materials is prolonged. And better subsequent grinding of the materials is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of grinding machine technology, specifically relating to a vibration screening mechanism for preventing blockage at the feed inlet of a grinding machine. Background Technology

[0002] A grinding mill is a key piece of equipment that uses mechanical force to crush materials into fine powder or granules. It is widely used in industrial production, laboratory research, and daily life. However, when materials enter the grinding mill through the feed inlet, the amount of material entering at one time is sometimes large, which can easily cause blockage. This requires workers to use appropriate equipment to clear the blockage, which in turn delays the grinding process. Therefore, grinding mills with a screening mechanism that prevents blockage at the feed inlet are very necessary. Utility Model Content

[0003] The purpose of this invention is to provide a vibrating screening mechanism for preventing blockage at the feed inlet of a grinding mill, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A vibrating screening mechanism for preventing clogging at the feed inlet of a grinding mill includes: a grinding mill body; a screening chamber fixedly connected to the middle of the top of the grinding mill body; a cover plate threadedly connected to the top of the screening chamber; a conveying channel fixedly connected to one side of the top of the cover plate; a first protective shell fixedly connected to the top of the conveying channel; a first drive motor fixedly connected inside the first protective shell; a spiral conveying blade fixedly connected to the output end of the first drive motor; a support base fixedly connected to the surface of the conveying channel; a feed inlet fixedly connected inside the support base; two screening discs fixedly connected to the inner sidewall of the screening chamber; a high-frequency vibrating motor fixedly connected inside the screening discs; a pressure sensor fixedly connected inside the screening discs; and a screening screen fixedly connected to the inner bottom wall of the screening discs.

[0006] Preferably, an adjustment chamber is fixedly connected to the middle of the top of the screening chamber, a second drive motor is fixedly connected to one side of the adjustment chamber, and a cam is fixedly connected to the output end of the second drive motor.

[0007] Preferably, two fixing rods are fixedly connected to the top of the inner sidewall of the screening chamber, and a positioning sleeve is fixedly connected to one end of the two fixing rods facing each other.

[0008] Preferably, the positioning sleeve has an internal sliding and penetrating abutment rod, and a pressing block is fixedly connected to the top of the abutment rod surface.

[0009] Preferably, a compression spring is fixedly connected to the inner bottom wall of the positioning sleeve, and the top end of the compression spring is fixedly connected to the bottom of the extrusion block.

[0010] Preferably, two striking blocks are fixedly connected to the bottom end of the surface of the abutment rod, and sound insulation cotton is provided inside the screening chamber.

[0011] Preferably, a sealing door is connected to one side of the surface of the grinding machine body via a hinge, and a control box is fixedly connected to one side of the top of the grinding machine body. The control box is electrically connected to the grinding machine body, the first drive motor, the high-frequency vibration motor, and the second drive motor.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The grinding mill body can screen the material entering it before grinding it. It can also screen the material step by step through two screening discs. During screening, the material can be prevented from clogging. The feed inlet is conveyed by the spiral conveyor blades to avoid accumulation. After the material accumulates inside the screening disc, the material conveying can be stopped in time. At the same time, the striking block can strike the bottom of the screening disc to make the material inside diffuse and fall.

[0014] (2) When screening materials, the screening disc inside the screening chamber can isolate noise through the sound insulation cotton, preventing the sound from spreading to the outside and maintaining the quietness of the surrounding working environment. At the same time, the screening screen is made of non-stick material, which prevents the material from adhering and facilitates the falling of the material. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the abutment rod of this utility model;

[0017] Figure 3 This is a perspective view of the screening disc of this utility model;

[0018] In the diagram: 1. Grinding machine body; 2. Screening chamber; 3. Conveying channel; 4. First drive motor; 5. Spiral conveyor blades; 6. Screening disc; 7. High-frequency vibration motor; 8. Pressure sensor; 9. Adjustment chamber; 10. Second drive motor; 11. Cam; 12. Fixing rod; 13. Positioning sleeve; 14. Abutment rod; 15. Extrusion block; 16. Compression spring; 17. Impact block; 18. Sound insulation cotton; 19. Sealing door; 20. Control box; 21. Screening screen; 22. Feed inlet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] Please see Figures 1 to 3 As shown, a vibrating screening mechanism for preventing blockage at the feed inlet of a grinding mill includes a grinding mill body 1. A screening chamber 2 is fixedly connected to the middle of the top of the grinding mill body 1. A cover plate is threadedly connected to the top of the screening chamber 2. A conveying channel 3 is fixedly connected to one side of the top of the cover plate. A first protective shell is fixedly connected to the top of the conveying channel 3. A first drive motor 4 is fixedly connected inside the first protective shell. A spiral conveying blade 5 is fixedly connected to the output end of the first drive motor 4. A support base is fixedly connected to the surface of the conveying channel 3. A feed inlet 22 is fixedly connected inside the support base. Two screening discs 6 are fixedly connected to the inner side wall of the screening chamber 2. A high-frequency vibration motor 7 is fixedly connected inside the screening disc 6. A pressure sensor 8 is fixedly connected inside the screening disc 6. A screening screen 21 is fixedly connected to the inner bottom wall of the screening disc 6.

[0022] The screening chamber 2 allows for pre-screening of materials before they enter the grinding mill body 1. The first drive motor 4 and the spiral conveyor blades 5 transport the materials into the screening chamber 2. A support base secures the feed inlet 22, which extends through the chamber. The support base is connected to the conveying channel 3, and the feed inlet 22 is inclined to guide the materials into the channel 3, facilitating material transport. The screening disc 6 and the screening screen 21 separate the materials falling within them. High-frequency vibration... Motor 7 vibrates the screening disc 6, causing it to shake and achieve the purpose of screening. Pressure sensor 8 senses the amount of material falling inside the screening disc 6. If the amount is large and reaches the preset value of pressure sensor 8, the first drive motor 4 stops driving the spiral conveyor blades 5 to avoid excessive material accumulation. It should be noted that the mesh size of the screening screen 21 inside the upper and lower screening discs 6 is different. The mesh size of the screening screen 21 inside the lower screening disc 6 is smaller, so that it can be screened layer by layer. The screening screen 21 adopts a non-stick coating polytetrafluoroethylene design to prevent material from adhering.

[0023] An adjustment chamber 9 is fixedly connected to the middle of the top of the screening chamber 2. A second drive motor 10 is fixedly connected to one side of the adjustment chamber 9. A cam 11 is fixedly connected to the output end of the second drive motor 10. The second drive motor 10 is configured to provide a certain driving force for the rotation of the cam 11.

[0024] Two fixing rods 12 are fixedly connected to the top of the inner wall of the screening chamber 2, and a positioning sleeve 13 is fixedly connected to one end of the two fixing rods 12 facing each other. The fixing rods 12 keep the positioning sleeve 13 fixed.

[0025] The positioning sleeve 13 has a sliding contact rod 14 that passes through it, and a pressing block 15 is fixedly connected to the top of the surface of the contact rod 14. The contact rod 14 is provided so that the pressing block 15 can be fixed on its surface.

[0026] A compression spring 16 is fixedly connected to the inner bottom wall of the positioning sleeve 13, and the top end of the compression spring 16 is fixedly connected to the bottom of the pressing block 15. When the abutment rod 14 descends, it drives the pressing block 15 to descend, causing it to press the compression spring 16.

[0027] Two striking blocks 17 are fixedly connected to the bottom of the surface of the abutment rod 14, and sound insulation cotton 18 is installed inside the screening chamber 2. When the abutment rod 14 moves up and down, the extrusion block 15 strikes the bottom of the screening disc 6, causing the material accumulated inside to be diffused. The sound insulation cotton 18 makes the sound inside the screening chamber 2 quieter during material screening.

[0028] A sealing door 19 is connected to one side of the surface of the grinding mill body 1 via a hinge. A control box 20 is fixedly connected to one side of the top of the grinding mill body 1, and the control box 20 is electrically connected to the grinding mill body 1, the first drive motor 4, the high-frequency vibration motor 7, and the second drive motor 10. The sealing door 19 facilitates the removal of the ground material after the grinding mill body 1 has finished grinding, and also facilitates the maintenance of some parts of the equipment. When the material inside the screening disc 6 accumulates and the preset value reaches the preset value of the pressure sensor 8, a signal is transmitted to the control box 20, and the control box 20 controls the first drive motor 4 to stop driving the spiral conveyor blades 5 to rotate.

[0029] The working principle of this utility model is as follows: The operator connects the feeding pipe to the inlet 22 beforehand. Simultaneously, the operator starts the first drive motor 4, whose output drives the spiral conveyor blades 5 to rotate. This causes the material entering the conveying channel 3 through the inlet 22 to be conveyed downwards, eventually entering the upper screening disc 6. At this point, the operator starts the high-frequency vibration motor 7, causing it to vibrate the screening disc 6, resulting in gradual screening of the material inside by the two discs. If the frequency of the falling material exceeds the screening speed, causing material accumulation inside the screening disc 6 and reaching the preset value of the pressure sensor 8, then… At this time, the pressure sensor 8 transmits a signal to the control box 20, and the control box 20 controls the first drive motor 4 to stop working. At the same time, the second drive motor 10 controlled by the operator starts working. The output end of the second drive motor 10 drives the cam 11 to rotate. After the cam 11 rotates, it will press the top of the abutment rod 14 downward, thereby causing the pressing block 15 on the surface of the abutment rod 14 to move up and down, so that it hits the bottom of the screening disc 6, making the material screening speed inside faster, avoiding material accumulation, and facilitating the purpose of subsequent screening. When the abutment rod 14 moves down, it will press the compression spring 16 through the pressing block 15, which facilitates the automatic reset of the abutment rod 14.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibrating screening mechanism for preventing blockage at the feed inlet of a grinding mill, characterized in that, include: The grinding machine body (1) has a screening chamber (2) fixedly connected to the middle of the top of the grinding machine body (1). The top of the screening chamber (2) is threadedly connected to a cover plate. A conveying channel (3) is fixedly connected to one side of the top of the cover plate. A first protective shell is fixedly connected to the top of the conveying channel (3). A first drive motor (4) is fixedly connected inside the first protective shell. A spiral conveying blade (5) is fixedly connected to the output end of the first drive motor (4). A support base is fixedly connected to the surface of the conveying channel (3). A feed inlet (22) is fixedly connected inside the support base. Two screening discs (6) are fixedly connected to the inner side wall of the screening chamber (2). A high-frequency vibration motor (7) is fixedly connected inside the screening disc (6). A pressure sensor (8) is fixedly connected inside the screening disc (6). A screening screen (21) is fixedly connected to the inner bottom wall of the screening disc (6).

2. The anti-clogging vibrating screening mechanism for the feed inlet of a grinding mill according to claim 1, characterized in that: An adjustment chamber (9) is fixedly connected to the middle of the top of the screening chamber (2), and a second drive motor (10) is fixedly connected to one side of the adjustment chamber (9). A cam (11) is fixedly connected to the output end of the second drive motor (10).

3. The anti-clogging vibrating screening mechanism for the feed inlet of a grinding mill according to claim 1, characterized in that: Two fixing rods (12) are fixedly connected to the top of the inner wall of the screening chamber (2), and a positioning sleeve (13) is fixedly connected to the opposite end of the two fixing rods (12).

4. The anti-clogging vibrating screening mechanism for the feed inlet of a grinding mill according to claim 3, characterized in that: The positioning sleeve (13) slides inside and has a contact rod (14) through it, and a pressing block (15) is fixedly connected to the top of the surface of the contact rod (14).

5. The anti-clogging vibrating screening mechanism for the feed inlet of a grinding mill according to claim 3, characterized in that: A compression spring (16) is fixedly connected to the inner bottom wall of the positioning sleeve (13), and the top end of the compression spring (16) is fixedly connected to the bottom of the extrusion block (15).

6. The anti-clogging vibrating screening mechanism for the feed inlet of a grinding mill according to claim 4, characterized in that: Two striking blocks (17) are fixedly connected to the bottom end of the surface of the abutment rod (14), and sound insulation cotton (18) is provided inside the screening chamber (2).

7. The anti-clogging vibrating screening mechanism for the feed inlet of a grinding mill according to claim 1, characterized in that: A sealing door (19) is connected to one side of the surface of the grinding machine body (1) via a hinge. A control box (20) is fixedly connected to one side of the top of the grinding machine body (1). The control box (20) is electrically connected to the grinding machine body (1), the first drive motor (4), the high-frequency vibration motor (7), and the second drive motor (10).

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