Grain screening machine

Abstract

The grain screening machine comprises a treatment bin, the bottom of the treatment bin is fixedly connected with a bottom bin, a plurality of equidistant falling grooves are formed in the inner bottom of the treatment bin, filter screens are fixedly connected to openings of the falling grooves, the bottom bin is communicated with the treatment bin through the falling grooves, and a transmission rod is rotationally connected between the left inner wall and the right inner wall of the treatment bin. The surface of the transmission rod is fixedly connected with an auger blade; according to the utility model, the plurality of continuous falling grooves are arranged to clean impurities smaller than grains, so that the impurities are screened back and forth in the moving process until the impurities are cleaned up, and the processing efficiency of the grains is improved.

Description

Technical Field

[0001] This utility model relates to the field of grain processing technology, specifically a grain screening machine. Background Technology

[0002] With the continuous development of agricultural production, the yield and variety of grains are increasing day by day. At the same time, various impurities, such as stones and chaff, are inevitably mixed into the grains during harvesting, storage and transportation. These impurities not only affect the appearance and taste of the grains, but may also damage the subsequent processing equipment and product quality. Therefore, it is particularly important to develop an efficient and reliable grain screening machine.

[0003] Existing grain screening equipment typically employs a vertical single-pass screening mode, where grain falls along a fixed path under gravity and impurities are separated through a screen. However, this single-pass screening method is inefficient, and the grain is prone to blockage during its vertical fall, resulting in low screening efficiency and increased equipment maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to provide a grain screening machine that solves the problems of low efficiency and blockage caused by the vertical single-pass screening mode used in traditional grain screening equipment as mentioned in the background art, and the easy formation of blockages during the vertical fall of grain.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grain screening machine, including a processing chamber, a bottom chamber fixedly connected to the bottom of the processing chamber, a plurality of equidistant drop grooves opened in the inner bottom of the processing chamber, a filter screen fixedly connected to the opening of the drop groove, the bottom chamber communicating with the processing chamber through the drop groove, a transmission rod rotatably connected between the left and right inner walls of the processing chamber, and an auger blade fixedly connected to the surface of the transmission rod.

[0006] In this technical solution, multiple continuously arranged drop troughs are set inside the processing chamber to screen impurities smaller than grain particles. The grain is moved back and forth by a drive rod and auger blades, which reduces accumulation and blockage, facilitates screening, and allows for multiple screenings, thereby improving the screening efficiency. Furthermore, before the grain enters the processing chamber for screening, the screening frame intercepts impurities larger than grain particles in advance, and the dust generated during the screening process is sucked away by a vacuum cleaner, thereby reducing the clogging of the internal filter screen of the processing chamber and air pollution.

[0007] Preferably, a dust collection frame is fixedly connected to the top of the processing chamber, and several ventilation holes are opened at the top of the processing chamber. The dust collection frame communicates with the interior of the processing chamber through the ventilation holes, and the dust collection frame and the vacuum cleaner are interconnected through a vacuum tube.

[0008] Preferably, a screening frame is fixedly connected to the top left side of the processing chamber, a screening frame is vertically slidably connected to the inner side of the screening frame, a number of springs are fixedly connected between the bottom of the screening frame and the inner wall of the screening frame, and a vibration motor is fixedly connected to the bottom of the screening frame.

[0009] Preferably, a servo motor is fixedly connected to the outer left side wall of the processing chamber corresponding to the horizontal height of the transmission rod, and the tail end of the transmission shaft of the servo motor is fixedly connected to the left end of the transmission rod.

[0010] Preferably, the side wall of the bottom compartment is provided with a plurality of equally spaced discharge slots, the number of which is the same as the number of drop slots.

[0011] Preferably, a feeding pipe is fixedly connected to the bottom of the screening frame, the bottom of the feeding pipe is fixedly connected to the top surface of the processing chamber, and the upper and lower ends of the feeding pipe are respectively connected to the screening frame and the processing chamber.

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

[0013] 1. This utility model uses multiple continuously arranged drop troughs inside the processing chamber to screen impurities smaller than grain particles. The grain is moved back and forth by a transmission rod and an auger until it is clean. Compared with traditional screening equipment that sets a vertical drop path and only screens once, this device moves the grain horizontally, which reduces accumulation and blockage, facilitates screening, and allows for multiple screenings, thereby improving the screening efficiency of grain.

[0014] 2. Before the grain enters the processing chamber for screening, the screening frame of this utility model will intercept impurities larger than grain particles in advance, and the dust generated during the screening process will be sucked away by a vacuum cleaner, thereby reducing the clogging of the filter screen inside the processing chamber and the pollution to the air. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is an overall view of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the processing chamber of this utility model.

[0019] In the diagram: 1. Processing chamber; 2. Screening frame; 3. Spring; 4. Screening frame; 5. Vibrating motor; 6. Feed pipe; 7. Transmission rod; 701. Servo motor; 8. Screw blade; 9. Dust collection frame; 10. Vent; 11. Dust collection pipe; 12. Dust collector; 13. Discharge trough; 131. Bottom chamber; 14. Drop trough; 141. Filter screen. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0021] A grain screening machine, see Figures 1 to 3 The system includes a processing chamber 1, with a bottom chamber 131 fixedly connected to its bottom. Several equidistant drop grooves 14 are formed at the bottom of the processing chamber 1, and filter screens 141 are fixedly connected to the openings of the drop grooves 14. The bottom chamber 131 communicates with the processing chamber 1 through the drop grooves 14. A transmission rod 7 is rotatably connected between the left and right inner walls of the processing chamber 1. An auger blade 8 is fixedly connected to the surface of the transmission rod 7. A servo motor 701 is fixedly connected to the outer left side wall of the processing chamber 1 at the horizontal height of the transmission rod 7. The tail end of the transmission shaft of the servo motor 701 is fixedly connected to the left end of the transmission rod 7. After the food enters the processing chamber 1, the servo motor 701 drives the transmission rod 7 and the auger blade 8 to rotate. During the rotation, the food moves inside the processing chamber 1. The rotation direction of the servo motor 701 can be reversed, causing the food to move back and forth. During the movement, the food tumbles and comes into contact with the filter screen 141. The pore size of the filter screen 141 is smaller than the size of the food particles, so impurities smaller than the food particles are screened and separated until the screening is complete. Compared with traditional vertical moving path screening equipment, this device can reduce the accumulation of food and improve the screening efficiency.

[0022] Specifically, such as Figure 2 As shown, a dust collection frame 9 is fixedly connected to the top of the processing chamber 1. Several ventilation holes 10 are opened at the top of the processing chamber 1. The dust collection frame 9 is connected to the interior of the processing chamber 1 through the ventilation holes 10. The dust collection frame 9 and the vacuum cleaner 12 are connected to each other through the suction pipe 11. After the vacuum cleaner 12 is started, it generates suction and forms an air duct inside the processing chamber 1. The dust raised during the tumbling process enters the collection area inside the vacuum cleaner 12 through the ventilation holes 10 and the dust collection frame 9. At the same time, it can also suck up the dust raised inside the screening frame 2, thereby avoiding a large amount of dust from drifting into the air and causing pollution.

[0023] Furthermore, such as Figure 2As shown, a screening frame 2 is fixedly connected to the top left side of the processing chamber 1. A screening frame 4 is vertically slidably connected to the inner side of the screening frame 2. Several springs 3 are fixedly connected between the bottom of the screening frame 4 and the inner wall of the screening frame 2. A vibration motor 5 is fixedly connected to the bottom of the screening frame 4. After the vibration motor 5 is started, it drives the screening frame 4 to vibrate and screen the poured grain. The mesh size of the screen inside the screening frame 4 is larger than the size of the grain particles, so the grain particles pass through normally. Larger impurity particles are intercepted to prevent them from entering the processing chamber 1 and getting stuck in the filter screen 141, causing blockage.

[0024] It is worth noting that, such as Figure 3 As shown, the side wall of the bottom hopper 131 is provided with several equidistant discharge troughs 13. The number of discharge troughs 13 is the same as the number of drop troughs 14. The bottom of the screening frame 2 is fixedly connected to the feed pipe 6. The bottom of the feed pipe 6 is fixedly connected to the top surface of the processing hopper 1. The upper and lower ends of the feed pipe 6 are respectively connected to the screening frame 2 and the processing hopper 1. The interior of the discharge trough 13 is set in a slope shape. The screened impurities will slide out through the slope. A collection container can be set at the outlet of each discharge trough 13 for convenient unified cleaning.

[0025] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A grain sorting machine comprising a treatment bin (1), characterized in that: The bottom of the processing bin (1) is fixedly connected with a bottom bin (131), a plurality of equidistant drop grooves (14) are arranged in the bottom of the processing bin (1), a filter screen (141) is fixedly connected to the opening of the drop groove (14), the bottom bin (131) is communicated with the processing bin (1) through the drop groove (14), and a transmission rod (7) is rotatably connected between the left and right inner walls of the processing bin (1).

2. A grain sorting machine according to claim 1, characterised in that: The top end of the processing bin (1) is fixedly connected with a dust collection frame (9), a plurality of air holes (10) are arranged at the top end of the processing bin (1), the dust collection frame (9) is communicated with the inside of the processing bin (1) through the air holes (10), and the dust collection frame (9) and the dust collection machine (12) are communicated with each other through a dust collection pipe (11).

3. A grain sorting machine according to claim 1, characterised in that: The top end of the processing bin (1) is fixedly connected with a dust collection frame (9), a plurality of air holes (10) are arranged at the top end of the processing bin (1), the dust collection frame (9) is communicated with the inside of the processing bin (1) through the air holes (10), and the dust collection frame (9) and the dust collection machine (12) are communicated with each other through a dust collection pipe (11).

4. A grain sorting machine according to claim 1, characterized in that: The top end of the processing bin (1) is fixedly connected with a dust collection frame (9), a plurality of air holes (10) are arranged at the top end of the processing bin (1), the dust collection frame (9) is communicated with the inside of the processing bin (1) through the air holes (10), and the dust collection frame (9) and the dust collection machine (12) are communicated with each other through a dust collection pipe (11).

5. A grain sorting machine according to claim 1, wherein: The bottom of the processing bin (1) is fixedly connected with a bottom bin (131), a plurality of equidistant drop grooves (14) are arranged in the bottom of the processing bin (1), a filter screen (141) is fixedly connected to the opening of the drop groove (14), the bottom bin (131) is communicated with the processing bin (1) through the drop groove (14), and a transmission rod (7) is rotatably connected between the left and right inner walls of the processing bin (1).

6. A grain sorting machine according to claim 3, wherein: The bottom of the processing bin (1) is fixedly connected with a bottom bin (131), a plurality of equidistant drop grooves (14) are arranged in the bottom of the processing bin (1), a filter screen (141) is fixedly connected to the opening of the drop groove (14), the bottom bin (131) is communicated with the processing bin (1) through the drop groove (14), and a transmission rod (7) is rotatably connected between the left and right inner walls of the processing bin (1).

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