Vibration screening machine

Abstract

The utility model provides a vibration screening machine, and belongs to the technical field of grain and oil machinery. Comprising a rack, a plurality of sliding rods are fixed to the top of the rack, screening hoppers are connected between the sliding rods in a sliding mode, and the included angle between each screening hopper and the horizontal plane ranges from 10 degrees to 20 degrees; each sliding rod is sleeved with a pair of springs, and the two ends of each spring abut against the outer wall of the screening hopper and the inner wall of the rack correspondingly. A screen is fixed to the middle position in the screening hopper and divides the interior of the screening hopper into a double-layer structure, a coarse material layer is located on the upper portion of the screening hopper, and a fine material layer is located on the lower portion of the screening hopper. Discharge holes are formed in the lower ends of the coarse material layer and the fine material layer; a plurality of blocking strips made of angle iron are arranged on the upper surface of the screen, the blocking strips are fixed to the two opposite inner walls of the screening hopper in a staggered mode, and the included angle between each blocking strip and the fixed inner wall of the screening hopper ranges from 30 degrees to 60 degrees. The screening device has the advantages of simple structure, low manufacturing cost, good screening effect and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain and oil machinery and relates to a vibration screening machine. Background Art

[0002] During the production process of grain and oil products, it is usually necessary to classify them according to the specifications of their particles, which requires the use of a vibrating screening machine. However, in the existing technology, in order to fully screen the grain and oil raw materials, the general vibrating screening machine has certain requirements on the size of its screen, which makes its overall size generally large and the cost high. Utility Model Content

[0003] The purpose of this utility model is to provide a vibrating screening machine in response to the above-mentioned problems existing in the existing technology, aiming to optimize the structure of the existing vibrating screening machine so that it has a simpler structure and a smaller size while ensuring the screening effect.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a vibrating screening machine, characterized in that the device includes a frame, a plurality of slide rods are fixed on the top of the frame, a screening bucket is slidably connected between the slide rods, and the angle between the screening bucket and the horizontal plane is between 10° and 20°; a pair of springs are sleeved on each of the slide rods, and the two ends of each spring respectively abut against the outer wall of the screening bucket and the inner wall of the frame; a screen is fixed at the middle position in the screening bucket, and the screen divides the interior of the screening bucket into a double-layer structure, and the coarse material layer is located on the upper part of the screening bucket, and the coarse material layer is located below the screening bucket. The lower end of the coarse material layer and the fine material layer is provided with a discharge port; the upper surface of the screen is provided with a plurality of blocking bars made of angle iron, and each blocking bar is staggered and fixed on the two opposite inner walls of the screening bucket, and the angle between each blocking bar and the fixed inner wall of the screening bucket is between 30° and 60°; a plurality of bolts are provided between each blocking bar and the screen to fix them; a motor is fixed to the bottom of the screening bucket, and an eccentric wheel is fixed to the output shaft of the motor; a feed hopper is also fixed to the top of the frame, and the lower end of the feed hopper is located above the higher end of the screening bucket.

[0005] Preferably, an adjusting plug plate is slidably connected to an inner wall of the feed hopper, and a locking nut is provided between the inner wall of the feed hopper and the adjusting plug plate.

[0006] The utility model has the advantages:

[0007] 1. In this screening device, since the screen is provided with inclined and staggered blocking bars, the material on the screen can take an "S"-shaped route, extending the material's travel route on the screen, so that the length of the screen can be appropriately shortened, making the entire screening machine smaller in size and lower in cost.

[0008] 2. In this screening device, a number of bolts are provided between the blocking bar and the screen to connect them, so that the blocking bar can be used as a reinforcing spoke of the screen, which can effectively prevent the middle of the screen from sinking downward, thereby ensuring its screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the three-dimensional structure of the screening device.

[0010] Figure 2 It is a schematic diagram of the three-dimensional structure of the screening device from another perspective.

[0011] Figure 3 It is a top view of the screening device.

[0012] In the figure, 1. frame; 2. slide rod; 3. screening bucket; 31. screen; 32. coarse material layer; 33. fine material layer; 34. discharge port; 35. blocking bar; 4. spring; 5. motor; 51. eccentric wheel; 6. feed hopper; 61. adjustment plate; 62. locking nut. DETAILED DESCRIPTION

[0013] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0014] like Figure 1 、 Figure 2 and Figure 3 As shown, a vibrating screening machine includes a frame 1, a plurality of slide rods 2 are fixed on the top of the frame 1, and a screening bucket 3 is slidably connected between each slide rod 2, and the angle between the screening bucket 3 and the horizontal plane is between 10° and 20°; each slide rod 2 is provided with a pair of springs 4, and the two ends of each spring 4 respectively abut against the outer wall of the screening bucket 3 and the inner wall of the frame 1; a screen 31 is fixed at the middle position of the screening bucket 3, and the screen 31 divides the interior of the screening bucket 3 into a double-layer structure, and the coarse material layer 32 is located on the upper part of the screening bucket 3, and the fine material layer 33 is located on the lower part of the screening bucket 3; the coarse material layer 32 and the fine material layer 33 are located on the lower part of the screening bucket 3; A discharge port 34 is provided at the lower end of each layer 33; a plurality of blocking bars 35 made of angle iron are provided on the upper surface of the screen 31, and each blocking bar 35 is staggered and fixed on the two opposite inner walls of the screening bucket 3, and the angle between each blocking bar 35 and the fixed inner wall of the screening bucket 3 is between 30° and 60°; a plurality of bolts are provided between each blocking bar 35 and the screen 31 for fixing; a motor 5 is fixed to the bottom of the screening bucket 3, and an eccentric wheel 51 is fixed to the output shaft of the motor 5; a feed hopper 6 is also fixed to the top of the frame 1, and the lower end of the feed hopper 6 is located above the higher end of the screening bucket 3.

[0015] When the screening machine is working, the grain and oil raw materials enter the hopper 6 and enter the higher end of the screening bucket 3. Then, under the vibration provided by the motor 5 and the eccentric wheel 51, the grain and oil raw materials will roll and spread on the screen 31. In the process of passing through the screen 31, the smaller ones will pass through the screen 31 and fall into the fine material layer 33, and finally be discharged from the discharge port 34 at the end of the fine material layer 33; while the larger ones will be left on the screen 31 and finally be discharged from the discharge port 34 on the coarse material layer 32. We only need to pack the raw materials discharged from the two discharge ports 34 respectively to realize the screening of the grain and oil raw materials and distinguish different grades. At the same time, because the screen 31 is provided with inclined and staggered blocking bars 35, it can make the material on the screen 31 take an "S" shape route, thereby making its route on the screen 31 longer, making the screening more sufficient. In this way, we can appropriately shorten the length of the screen 31, making the size of the entire screening machine smaller and the cost lower. In addition, a plurality of bolts are provided between the blocking bar 35 and the screen 31 to connect them, so that the blocking bar 35 can serve as a reinforcing spoke of the screen 31, which can effectively prevent the middle of the screen 31 from sinking downward, thereby ensuring its screening effect.

[0016] like Figure 1 and Figure 2 As shown, an adjustment plate 61 is slidably connected to an inner wall of the feed hopper 6, and a locking nut 62 is provided between the inner wall of the feed hopper 6 and the adjustment plate 61. The existence of the adjustment plate 61 allows us to adjust the feeding rate according to the screening effect at any time, thereby ensuring the screening effect.

[0017] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A vibrating screening machine, characterized in that: The device comprises a frame (1), a plurality of slide rods (2) are fixed on the top of the frame (1), a screening bucket (3) is slidably connected between each slide rod (2), and the angle between the screening bucket (3) and the horizontal plane is between 10° and 20°; each slide rod (2) is sleeved with a pair of springs (4), and the two ends of each spring (4) respectively abut against the outer wall of the screening bucket (3) and the inner wall of the frame (1); a screen (31) is fixed at the middle position of the screening bucket (3), and the screen (31) divides the inside of the screening bucket (3) into a double-layer structure, and the coarse material layer (32) is located at the upper part of the screening bucket (3), and the fine material layer (33) is located at the lower part of the screening bucket (3); the coarse material layer (32) and the fine material layer (33) is provided with a discharge port (34) at the lower end; a plurality of blocking bars (35) made of angle iron are provided on the upper surface of the screen (31), and each blocking bar (35) is staggered and fixed on two opposite inner walls of the screening bucket (3), and the angle between each blocking bar (35) and the inner wall of the fixed screening bucket (3) is between 30° and 60°; a plurality of bolts are provided between each blocking bar (35) and the screen (31) for fixing; a motor (5) is fixed at the bottom of the screening bucket (3), and an eccentric wheel (51) is fixed on the output shaft of the motor (5); a feed hopper (6) is also fixed on the top of the frame (1), and the lower end of the feed hopper (6) is located above the higher end of the screening bucket (3).

2. A vibrating screening machine according to claim 1, characterized in that: An adjusting insert plate (61) is slidably connected to an inner wall of the feed hopper (6), and a locking nut (62) is provided between the inner wall of the feed hopper (6) and the adjusting insert plate (61).

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