Automatic screening device of nut conveyor

Abstract

The automatic screening device of the nut conveyor comprises a screening barrel and a nut conveying guide plate, the nut conveying guide plate is arranged above the screening barrel, and four vertical connecting rods are installed in the screening barrel through limiting assemblies. A first screening frame, a second screening frame and a third screening frame are arranged in the screening barrel, according to the automatic screening device of the nut conveyor, a rotating driving assembly can drive a rotating disc to rotate, in the rotating process of an arranged contact jacking assembly and an arranged arc-shaped jacking block, a bottom pushing block can be continuously pushed, and therefore the rotating disc can be driven to rotate; when the nuts are screened, one corresponding vertical connecting rod moves upwards, along with continuous rotation of an arc-shaped jacking block, the screening frame can be driven to change the inclined position continuously, the screening frame can achieve the continuous shaking screening effect, accordingly, the nuts in the screening frame are shaken and screened, the nuts can continuously move in the screening frame, and therefore the nuts can better fall down from screening meshes, and the screening efficiency is improved. And the rapid screening effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic screening devices, in particular to an automatic screening device for a nut conveyor. Background Art

[0002] Nut conveyor is an automatic conveying equipment for nuts, also known as vibrating nut feeder. It is mainly used in automobile, motorcycle, shipbuilding and all places where nut conveying is required and used in conjunction with spot welding machines. The existing nut conveyor is not convenient for classifying nuts of different models when conveying nuts, which easily causes the processing process to stop.

[0003] After searching, the patent with application number CN202222348851.8 discloses an automatic screening device for a nut conveyor, which screens the nuts by vibrating the screening mesh plate. However, even if the screening mesh plate is in an inclined state, it can only move in one direction. Nuts in different positions cannot be screened effectively and quickly, and the shaking of the screen plate cannot be achieved. Therefore, an automatic screening device for a nut conveyor is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an automatic screening device for a nut conveyor, which is used to solve the above problems.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An automatic screening device for a nut conveyor includes a screening barrel and a nut conveying guide plate, the nut conveying guide plate is arranged above the screening barrel, four vertical connecting rods are installed in the screening barrel through a limiting assembly, a first screening frame, a second screening frame and a third screening frame are arranged in the screening barrel, and a stretching guide assembly is connected between the first screening frame, the second screening frame and the third screening frame and the four vertical connecting rods respectively, a rotary drive assembly is provided at the bottom of the screening barrel, a rotating disk is connected to the rotary drive assembly, and a contact lifting assembly is provided between the rotating disk and the four vertical connecting rods.

[0007] Preferably, the limiting assembly includes a limiting groove provided on the inner wall of the screening barrel, a limiting block is fixedly installed on one side of the vertical connecting rod, and the limiting block is slidably installed in the limiting groove.

[0008] Preferably, the stretching guide assembly includes three connecting sleeves rotatably mounted on one side of the vertical connecting rod, and stretching columns are movably mounted on the three connecting sleeves. The three stretching columns are respectively rotatably connected to one side of the first screening frame, the second screening frame and the third screening frame, and a stretching spring is connected between the stretching column and the connecting sleeve.

[0009] Preferably, the rotary drive assembly includes a drive motor fixedly mounted on the bottom of the screening barrel, and the output end of the drive motor extends into the screening barrel and is fixedly mounted on the bottom of the rotating disk.

[0010] Preferably, the contact jacking assembly includes an arc-shaped jacking block fixedly mounted on the top of the rotating disk, and bottom push blocks are fixedly mounted on the bottoms of the four vertical connecting rods, and the arc-shaped jacking block is adapted to the bottom push block.

[0011] Preferably, a plurality of rotating rollers are rotatably mounted on the arc-shaped lifting block, the bottom pushing block is arranged in an arc-shaped structure, and the rotating rollers are adapted to the bottom pushing block.

[0012] Preferably, an arc-shaped shield is fixedly installed on the top of the rotating disk, and a material taking port is provided on one side of the screening barrel.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the automatic screening device of the nut conveyor is equipped with multiple screening frames, which can screen nuts of different diameters step by step; the rotating drive component is equipped with a rotary drive component, which can drive the rotating disk to rotate; the contact lifting component is equipped with an arc-shaped lifting block, which will continuously push the bottom pushing block during the rotation of the arc-shaped lifting block, and a corresponding vertical connecting rod will move upward. As the arc-shaped lifting block continues to rotate, the screening frame can be driven to continuously change its tilt position, and the screening frame can form a continuous shaking and screening effect, so that the nuts inside can be shaken and screened, and the nuts can continuously move inside, so as to better fall from the screening mesh, thereby achieving a rapid screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model in cross section;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model in partial section;

[0017] Figure 4 For this utility model Figure 2 Schematic diagram of the structure of part A.

[0018] In the figure: 1. Screening barrel; 2. Nut conveying guide plate; 3. Vertical connecting rod; 4. Limiting groove; 5. Limiting block; 6. First screening frame; 7. Second screening frame; 8. Third screening frame; 9. Connecting sleeve; 10. Tensile column; 11. Tensile spring; 12. Driving motor; 13. Rotating disk; 14. Arc-shaped lifting block; 15. Rotating roller; 16. Bottom pushing block; 17. Arc-shaped shield; 18. Material taking port. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example: Refer to Figure 1-4 , an automatic screening device of a nut conveyor, comprising a screening barrel 1 and a nut conveying guide plate 2, the nut conveying guide plate 2 is arranged above the screening barrel 1, four vertical connecting rods 3 are installed in the screening barrel 1 through a limit assembly, a first screening frame 6, a second screening frame 7 and a third screening frame 8 are arranged in the screening barrel 1, and a stretching guide assembly is connected between the first screening frame 6, the second screening frame 7 and the third screening frame 8 and the four vertical connecting rods 3 respectively, and the conveyed nuts are delivered to the screening barrel 1 through the nut conveying guide plate 2, and a first screening frame 6, a second screening frame 7 and a third screening frame 8 are arranged in the screening barrel 1, and screening meshes are arranged on the first screening frame 6, the second screening frame 7 and the third screening frame 8, and the size of the screening meshes gradually decreases. The first screening frame 6 screens large nuts, and the third screening frame 8 screens smaller nuts.

[0021] Specifically, a rotation drive assembly is provided at the bottom of the screening barrel 1, and a rotating disk 13 is connected to the rotation drive assembly. A contact jacking assembly is provided between the rotating disk 13 and the four vertical connecting rods 3. The rotation drive assembly includes a drive motor 12 fixedly mounted on the bottom of the screening barrel 1, and the output end of the drive motor 12 extends into the screening barrel 1 and is fixedly mounted on the bottom of the rotating disk 13. The contact jacking assembly includes an arc-shaped jacking block 14 fixedly mounted on the top of the rotating disk 13, and the bottoms of the four vertical connecting rods 3 are all fixedly mounted with bottom pushing blocks 16, and the arc-shaped jacking blocks 14 are adapted to the bottom pushing blocks 16. A plurality of rotating rollers 15 are rotatably mounted on the arc-shaped jacking block 14, and the bottom pushing block 16 is an arc-shaped structure. The rotating rollers 15 are adapted to the bottom pushing block 16, and the limiting assembly includes an opening A limit groove 4 is provided on the inner wall of the screening barrel 1, and a limit block 5 is fixedly installed on one side of the vertical connecting rod 3. The limit block 5 is slidably installed in the limit groove 4. When the nut falls on the screening frame, the drive motor 12 on the rotary drive assembly is started to run, driving the rotating disk 13 to rotate. The contact jacking assembly is set, and the rotating disk 13 rotates to drive the arc-shaped jacking block 14 to rotate. During the rotation of the arc-shaped jacking block 14, it will continuously contact and squeeze with the bottom pushing block 16, thereby driving a corresponding vertical connecting rod 3 to move upward. The upward movement of the vertical connecting rod 3 drives the connected limit block 5 to slide in the limit groove 4, so that the movement of the vertical connecting rod 3 can be limited in position. The rotating roller 15 is set, and when the arc-shaped jacking block 14 contacts with the bottom pushing block 16, the contact friction is reduced, making it more durable.

[0022] Specifically, the stretching guide assembly includes three connecting sleeves 9 rotatably mounted on one side of the vertical connecting rod 3, and a stretching column 10 is movably mounted on the three connecting sleeves 9. The three stretching columns 10 are rotatably connected to one side of the first screening frame 6, the second screening frame 7 and the third screening frame 8 respectively. A stretching spring 11 is connected between the stretching column 10 and the connecting sleeve 9. An arc-shaped baffle 17 is fixedly mounted on the top of the rotating disk 13. A material taking port 18 is provided on one side of the screening barrel 1. After the vertical connecting rod 3 moves upward, under the action of the stretching guide assembly, the stretching column 10 on the stretching guide assembly can move in the connecting sleeve 9 to offset the upward movement. The distance difference caused by the displacement, the tensile strength of the stretching spring 11 is high, so that one side of the screening frame can be pulled up, and the screening frame moves upward and tilts toward the stretched position, thereby driving the internal nut to move. As the arc-shaped lifting block 14 continues to rotate, the screening frame can be driven to continuously change its tilt position, and the screening frame can form a continuous shaking screening effect, so that the internal nut can be shaken and screened, and the nut can continuously move inside, so as to better fall from the screening mesh, thereby achieving a rapid screening effect. After screening for a period of time, the screening frame can be taken out, and the screened nut can be taken out to facilitate the next step of screening.

[0023] During use: the conveyed nuts are sent to the screening barrel 1, and the first screening frame 6, the second screening frame 7 and the third screening frame 8 are set, which can screen nuts of different diameters. The drive motor 12 on the rotary drive assembly is started to run, driving the rotating disk 13 to rotate, and the contact jacking assembly is set. The rotation of the rotating disk 13 drives the arc-shaped jacking block 14 to rotate, and the arc-shaped jacking block 14 continuously pushes the bottom pushing block 16 to move upward. Under the action of the stretching guide assembly, one side of the screening frame can be pulled up, and the screening frame moves upward and tilted toward the stretching position, thereby driving the internal nuts to move. With the continuous rotation of the arc-shaped jacking block 14, the screening frame can be driven to continuously change its tilted position, and the screening frame can form a continuous shaking and screening effect, so that the internal nuts can be shaken and screened. The nuts can continuously move inside, thereby better falling from the screening mesh, achieving a rapid screening effect.

[0024] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic screening device for a nut conveyor, comprising a screening barrel (1) and a nut conveying guide plate (2), characterized in that: The nut conveying guide plate (2) is arranged above the screening barrel (1); four vertical connecting rods (3) are installed in the screening barrel (1) through a limit assembly; a first screening frame (6), a second screening frame (7) and a third screening frame (8) are arranged in the screening barrel (1); a stretching guide assembly is connected between the first screening frame (6), the second screening frame (7) and the third screening frame (8) and the four vertical connecting rods (3); a rotary drive assembly is arranged at the bottom of the screening barrel (1); a rotating disk (13) is connected to the rotary drive assembly; and a contact lifting assembly is arranged between the rotating disk (13) and the four vertical connecting rods (3).

2. The automatic screening device for a nut conveyor according to claim 1, characterized in that: The limiting assembly comprises a limiting groove (4) provided on the inner wall of the screening barrel (1); a limiting block (5) is fixedly mounted on one side of the vertical connecting rod (3); and the limiting block (5) is slidably mounted in the limiting groove (4).

3. The automatic screening device for a nut conveyor according to claim 1, characterized in that: The stretching guide assembly comprises three connecting sleeves (9) rotatably mounted on one side of a vertical connecting rod (3), and a stretching column (10) is movably mounted on each of the three connecting sleeves (9). The three stretching columns (10) are rotatably connected to one side of the first screening frame (6), the second screening frame (7), and the third screening frame (8), respectively. A stretching spring (11) is connected between the stretching column (10) and the connecting sleeve (9).

4. The automatic screening device for a nut conveyor according to claim 1, characterized in that: The rotary drive assembly comprises a drive motor (12) fixedly mounted on the bottom of the screening barrel (1), wherein the output end of the drive motor (12) extends into the screening barrel (1) and is fixedly mounted on the bottom of the rotating disk (13).

5. The automatic screening device for a nut conveyor according to claim 1, characterized in that: The contact lifting assembly comprises an arc-shaped lifting block (14) fixedly mounted on the top of the rotating disk (13), and bottom push blocks (16) are fixedly mounted on the bottoms of the four vertical connecting rods (3), and the arc-shaped lifting block (14) is adapted to the bottom push blocks (16).

6. The automatic screening device for a nut conveyor according to claim 5, characterized in that: A plurality of rotating rollers (15) are rotatably mounted on the arc-shaped lifting block (14), and the bottom pushing block (16) is arranged in an arc-shaped structure, and the rotating rollers (15) are adapted to the bottom pushing block (16).

7. The automatic screening device for a nut conveyor according to claim 1, characterized in that: An arc-shaped shield (17) is fixedly mounted on the top of the rotating disk (13), and a material taking port (18) is provided on one side of the screening barrel (1).

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