Grading vibration screening machine

[0028] See figure 1 , Showing a three-dimensional schematic diagram of the classification vibration screening machine of the present invention, the screening machine includes a main body 1, a plurality of screen rollers 2, a feeding table 4, a buffer plate 7 and a collection box 9. The bottom of the main body 1 is provided with a plurality of movable wheels, The multiple movable wheels can facilitate the rapid movement of the main body 1. The upper part of the main body 1 is a frame, and one side of the frame is connected with a feeding table 4, the feeding table 4 is in the shape of a flat plate, and side plates are arranged vertically on both sides. The size of the openings on both sides of the table 4 are different, the larger side opens outwards, and the smaller side opening is located at the position connected to the main body 1. A plurality of screen rollers 2 are arranged in parallel in the frame body, and the upper part of the frame body is arranged The buffer plate 7 is provided with a plurality of collection boxes 9 under the frame. See figure 2 , Shows a schematic diagram of the screen roller 2, the screen roller 2 is a stepped rod, the diameter of the screen roller 2 gradually decreases from one end to the other end in a step shape, the largest diameter end is provided with a guide 21, the guide 21 spiral Located on the surface of the screen roll 2.

[0029] See image 3 , The larger diameter end of the screen roller 2 is connected to the transmission device 3. The transmission device 3 transmits the power of the power source (not shown) to the screen roller 2, and the smaller diameter end of the screen roller 2 is rotatably fixed on the main body 1. Preferably, the power source can be an electric motor, and the transmission device 3 can be a gear transmission device, a chain transmission creation, a belt transmission device, and the like.

[0030] See Figure 4-6 , The positioning frame 71 is fixed on the main body 1, and the positioning frame 71 is provided with a plurality of through holes 72 at intervals. Each through hole 72 is fixed with a buffer plate 7 by a bolt fixing member 74, and the lower part of the buffer plate 7 is provided with multiple bristles 73. Preferably, the through hole 72 is a long through hole set up and down, so that the position of the buffer plate 7 on the positioning frame 71 can be adjusted up and down.

[0031] See Figure 7-9 , Showing the specific operation process of the grading vibration screening machine of the present invention, the operator feeds the selected object 8 from the larger opening of the feeding table 4, due to the guidance of the side plates on both sides of the feeding table 4, the selected object 8 from The smaller opening of the feeding table enters the sorting zone 5 on the screen roller 2 which is located on the guide part 21. The spiral guide part 21 sorts and guides the selected objects 8 on the screen roller 2 during rotation. The selected object enters the gap between the sieve rollers 2, and then the selected object 8 enters the screening area 6. The buffer plate 7 is set between the sorting area 5 and the screening area 6, because the diameter of the sieve roller 2 is gradually reduced In the shape of a step, a gap of increasing size is formed between the two screen rolls 2, as a result, the selected object 8 falls from the gap of different sizes between the screen rolls 2, and thus falls into different collection boxes 9, by This realizes the hierarchical screening of the selected object 8.

[0032] The advantages of the grading vibration screening machine of the present invention are as follows:

[0033] 1. Simple structure, convenient manufacture and low cost;

[0034] 2. It is convenient to replace and maintain the screen roll after it is worn out, even if a single screen roll is damaged, it can be repaired and replaced quickly;

[0035] 3. Through the stepped sieve roll, the automatic classification and screening of the selected objects is realized;

[0036] 4. The buffer board can be adjusted up and down, which can be adjusted conveniently according to the size of the selected object.

[0037] It is obvious that the above description and record are only examples and are not intended to limit the disclosure, application or use of the present invention. Although the embodiments have been described in the embodiments and described in the drawings, the present invention is not limited to the specific examples illustrated in the drawings and described in the embodiments as the best mode currently considered to implement the teachings of the present invention The scope of the present invention will include any embodiments falling into the foregoing specification and appended claims.