Feeding device for grain winnowing machine

Abstract

The utility model discloses a feeding device for a grain winnowing machine, which comprises a feeding channel with an inlet and an outlet, the feeding channel obliquely extends downwards from the inlet to the outlet, and a material uniformizing control component is arranged in the feeding channel. A gap for the grains to flow and fall down along the bottom surface of the feeding channel is formed between the refining control assembly and the bottom surface of the feeding channel. The feeding device for the grain winnowing machine has the advantages of being good in feeding uniformity, beneficial to improving the winnowing effect and the production efficiency, suitable for large-scale production and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of grain processing equipment, in particular to a feeding device for a grain air separator. Background Art

[0002] In the industrial production of rice, wheat and other grains, it is an important step to use wind separation equipment to remove impurities such as small stones, crushed grains, rice weevils, husks, and packaging bag threads from grains. Wind separation equipment is usually a component of large-scale grain processing equipment, and there are many types of existing grain wind separation equipment. Among them, grain wind separation machines based on the principle of traditional rural grain windmills are widely used because of their simple structure and low cost. However, this wind separation mode is usually only suitable for small batches and single applications, and its feed thickness uniformity, wind separation effect, and production efficiency do not meet the needs of modern large-scale production. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a feeding device for a grain air separator which has good feeding uniformity, is beneficial to improving air separation effect and production efficiency, and is suitable for large-scale production.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A feeding device for a grain winnowing machine comprises a feeding channel with an inlet and an outlet, wherein the feeding channel extends downwardly from the inlet toward the outlet, a material leveling control component is arranged in the feeding channel, and a gap is provided between the material leveling control component and the bottom surface of the feeding channel for grain to flow and fall along the bottom surface of the feeding channel.

[0006] As a further improvement of the above technical solution:

[0007] The material screed control assembly comprises a material screed plate installed in the feed channel, and the gap is formed between the material screed plate and the bottom surface of the feed channel.

[0008] The height of the gap is uniform.

[0009] The bottom surface of the feed channel is a plane, and the gap is extended in the horizontal direction.

[0010] The material leveling plate is hingedly installed in the feed channel and can swing around the hinge axis to adjust the size of the gap. The material leveling plate is provided with a locking mechanism for fixing the material leveling plate.

[0011] The locking mechanism comprises a locking screw and a slot plate arranged on the feed channel, the slot plate is provided with an arc groove, the locking screw passes through the arc groove and is threadedly connected with the material leveling plate and can lock and loosen the material leveling plate by screwing.

[0012] The material leveling control component is provided with more than two material leveling plates, and the more than two material leveling plates are arranged at intervals along the extending direction of the feed channel.

[0013] The width of the feed channel gradually increases from top to bottom.

[0014] The inclination angle of the feed channel relative to the horizontal plane is between 40° and 50°.

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] The feeding device for the grain air separator of the utility model is provided with a material leveling control component in the feeding channel, and a gap is formed between the material leveling control component and the bottom surface of the feeding channel, which can control the thickness of the grain flowing and falling along the bottom surface of the feeding channel, and play a role in preventing the grain from piling up at a high height at a local position of the feeding channel, and can avoid the problem of excessive thickness at a local position and uneven overall thickness of the grain when the grain enters the grain air separator, and can improve the uniformity of feeding and the air separation effect. In addition, when the grain enters the feeding channel from a local position of the inlet, the gap can be used to make the grain spread as much as possible in the width direction of the feeding channel, and flow downward with uniform thickness to enter the grain air separator, which can further improve the uniformity of feeding, improve production efficiency, and greatly reduce the space occupied by the grain air separator, and provide convenience for optimizing the layout of the production plant required for the grain processing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the top view of the feeding device for the grain winnowing machine.

[0018] Figure 2 The present invention is a schematic diagram of the main structure of a feeding device for a grain winnowing machine.

[0019] Figure 3 for Figure 2 Enlarged structural diagram at A in the middle.

[0020] Figure 4 The figure is a schematic diagram of the structure of the locking mechanism.

[0021] Legend:

[0022] 1. Feed channel; 11. Inlet; 12. Outlet; 2. Gap; 3. Material leveling plate; 4. Locking screw; 5. Slot plate; 51. Arc groove. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 3As shown, the feeding device for the grain air separator of this embodiment includes a feeding channel 1 with an inlet 11 and an outlet 12. The feeding channel 1 extends downward from the inlet 11 to the outlet 12 in an inclined manner. A material leveling control component is provided in the feeding channel 1. A gap 2 is provided between the material leveling control component and the bottom surface of the feeding channel 1 for grain to flow and fall along the bottom surface of the feeding channel 1. The feeding device for the grain air separator is provided with a material leveling control component in the feeding channel 1. A gap 2 is formed between the material leveling control component and the bottom surface of the feeding channel 1. The thickness of the grain flowing and falling along the bottom surface of the feeding channel 1 can be controlled, and the grain can be prevented from being piled up at a high height at a local position of the feeding channel 1. The problem of excessive thickness at a local position and uneven overall thickness of the grain when the grain enters the grain air separator can be avoided, and the uniformity of the feeding can be improved, and the air separation effect can be improved. Furthermore, when grains enter the feed channel 1 from a local position of the inlet 11, the gap 2 can allow the grains to be spread as fully as possible in the width direction of the feed channel 1 and flow downward into the grain winnowing machine with uniform thickness, thereby further improving the uniformity of the feed and the production efficiency, and greatly reducing the space occupied by the grain winnowing machine, thereby facilitating the optimization of the production plant layout required for the grain processing device.

[0025] In this embodiment, the material leveling control assembly includes a material leveling plate 3 installed in the feed channel 1, and a gap 2 is formed between the material leveling plate 3 and the bottom surface of the feed channel 1. By setting the material leveling plate 3, a gap 2 can be formed between the material leveling plate 3 and the bottom surface of the feed channel 1, and the concentrated incoming grain can be diverted to both sides to spread as much as possible in the width direction of the feed channel 1, which has the advantages of simple structure, low cost and easy manufacturing.

[0026] In this embodiment, the height of the gap 2 is uniform, which is beneficial to improving the thickness uniformity and dispersion effect of the grain.

[0027] In this embodiment, the bottom surface of the feed channel 1 is a plane, and the gap 2 is arranged to extend in the horizontal direction, which is conducive to improving the grain dispersion effect and making the grain flow and fall in a plane, so as to improve the grain air separation effect entering the grain air separator. The width of the material leveling plate 3 is the same or substantially the same as the width of the feed channel 1.

[0028] In this embodiment, the screed plate 3 is hingedly installed in the feed channel 1 and can swing around the hinge axis to adjust the size of the gap 2. The screed plate 3 is provided with a locking mechanism for fixing the screed plate 3. The locking mechanism can loosen and lock the screed plate 3, so that the screed plate 3 can be adjusted and positioned at the thickness adjustment angle, thereby changing the size of the gap 2. By changing the size of the gap 2, it is convenient to control and adjust the thickness of the grain flowing and falling along the bottom surface of the feed channel 1 to meet the needs of different production conditions.

[0029] In this embodiment, Figure 4As shown, the locking mechanism includes a locking screw 4 and a slot plate 5 provided on the feed channel 1. The slot plate 5 is provided with an arc groove 51. The locking screw 4 passes through the arc groove 51 and is threadedly connected to the material leveling plate 3 and can lock and loosen the material leveling plate 3 by screwing. When the locking screw 4 is loosened, the locking effect on the material leveling plate 3 is released, and the material leveling plate 3 can swing to adjust the angle. When the material leveling plate 3 swings, it moves along the arc groove 51 with the locking screw 4. After the material leveling plate 3 adjusts the angle, the locking screw 4 can be tightened to lock and fix the material leveling plate 3 and the slot plate 5. The locking mechanism has the advantages of simple structure, low cost and easy adjustment. The above-mentioned locking mechanism can also adopt other existing technologies, as long as the material leveling plate 3 can be fixed at any angle within its adjustable range.

[0030] In this embodiment, the material leveling control assembly is provided with more than two leveling plates 3, and the two or more leveling plates 3 are arranged at intervals along the extension direction of the feed channel 1. The grain passes through the two or more leveling plates 3 to adjust the thickness and divert the grain more than twice, which is more conducive to improving the uniformity of the feed. Preferably, along the direction in which the feed channel 1 extends obliquely downward, the height of the gap 2 between each leveling plate 3 and the bottom surface of the feed channel 1 gradually decreases, so that the grain thickness and divert the grain are gradually adjusted in multiple times, the uniformity of the feed is better, and it is conducive to improving the smoothness of the feed. Preferably, the material leveling control assembly is provided with two leveling plates 3.

[0031] In this embodiment, the width of the feed channel 1 gradually increases from top to bottom. On the one hand, it is convenient for the feed channel 1 to dock with the existing grain supply device with a narrow discharge port. On the other hand, with more than two material leveling plates 3, the grain is gradually diffused to the entire bottom surface of the feed channel 1 in multiple times, and finally enters the grain air separator in a larger width range, further improving the feed uniformity and air separation efficiency, which can meet the large-scale production of grain air separators. Preferably, the feed channel 1 is fan-shaped with a narrow top and a wide bottom.

[0032] In this embodiment, the inclination angle of the feed channel 1 relative to the horizontal plane is between 40° and 50°. By configuring the inclination angle of the feed channel 1 to be within the appropriate inclination angle range, and by gradually increasing the width of the feed channel 1 from top to bottom, the grains flowing in from the inlet 11 flow down in the feed channel 1 in a fan-shaped distribution and enter the air separation chamber, and the grains contacting the air separation airflow are evenly distributed and fall, thereby achieving the effect of large-scale air separation processing.

[0033] After adopting the feeding device for the grain winnowing machine of this embodiment, the grain winnowing machine can, under the premise of ensuring the winnowing effect, increase the processing efficiency of the grain winnowing machine to 1-20 tons / hour compared with the traditional technology of 0.1-0.5 tons / hour, and greatly reduce the space occupied by the grain winnowing machine. For example, the size of a grain winnowing machine with a processing capacity of 20 tons / hour can be less than 2800*1000*1600 meters in length, width and height, and a large space is left under the feeding device, and other equipment or components can be cross-arranged, which can facilitate the optimized layout of the production plant of the grain winnowing machine and grain processing device.

[0034] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A feeding device for a grain winnowing machine, characterized in that: The invention comprises a feed channel (1) having an inlet (11) and an outlet (12), wherein the feed channel (1) extends obliquely downward from the inlet (11) toward the outlet (12), a material leveling control component is provided in the feed channel (1), and a gap (2) is provided between the material leveling control component and the bottom surface of the feed channel (1) for grain to flow and fall along the bottom surface of the feed channel (1).

2. The feeding device for a grain winnowing machine according to claim 1, characterized in that: The material leveling control assembly comprises a material leveling plate (3) installed in the feed channel (1), and the gap (2) is formed between the material leveling plate (3) and the bottom surface of the feed channel (1).

3. The feeding device for a grain winnowing machine according to claim 1, characterized in that: The height of the gap (2) is uniform.

4. The feeding device for a grain winnowing machine according to claim 1, characterized in that: The bottom surface of the feed channel (1) is a plane, and the gap (2) is arranged to extend in a horizontal direction.

5. The feeding device for a grain winnowing machine according to claim 2, characterized in that: The material leveling plate (3) is hingedly mounted in the feed channel (1) and can swing around a hinge axis to adjust the size of the gap (2); the material leveling plate (3) is provided with a locking mechanism for fixing the material leveling plate (3).

6. The feeding device for a grain winnowing machine according to claim 5, characterized in that: The locking mechanism comprises a locking screw (4) and a slot plate (5) provided on the feed channel (1); the slot plate (5) is provided with an arc-shaped slot (51); the locking screw (4) passes through the arc-shaped slot (51) and is threadably connected to the material leveling plate (3); and the material leveling plate (3) can be locked and loosened by screwing.

7. The feeding device for a grain winnowing machine according to claim 2, characterized in that: The material leveling control assembly is provided with more than two material leveling plates (3), and the more than two material leveling plates (3) are arranged at intervals along the extension direction of the feed channel (1).

8. The feeding device for a grain winnowing machine according to any one of claims 1 to 7, characterized in that: The width of the feed channel (1) gradually increases from top to bottom.

9. The feeding device for a grain winnowing machine according to any one of claims 1 to 7, characterized in that: The inclination angle of the feed channel (1) relative to the horizontal plane is between 40° and 50°.

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