Impurity removal device for grain production and processing

Abstract

The utility model provides an impurity removal device for grain production and processing, and relates to the field of grain production and processing, the impurity removal device comprises a grain impurity removal machine and a hopper, the hopper is welded on the upper end face of the grain impurity removal machine, an impurity screening cavity is arranged on the inner side of the grain impurity removal machine, and the left side wall and the right side wall of the impurity screening cavity are respectively provided with an air supply net opening and a dust collection net opening. A secondary impurity removing frame is connected to the side wall of the impurity screening cavity through a rotating column, a servo motor is connected to the left side of the secondary impurity removing frame through a rotating column, a second filter screen is arranged on the lower end face of the secondary impurity removing frame, and a primary impurity removing frame is fixed to the inner side of the secondary impurity removing frame through a connecting column; a first filter screen is arranged on the lower end face of the first-stage impurity removal frame. The double-layer filter screen solves the problem that in the prior art, due to the fact that weed leaves filtered out by the screen face of the double-layer filter screen easily cover local meshes, screening and discharging are not thorough.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain production and processing, and particularly relates to a grain production and processing impurity removal device. BACKGROUND

[0002] Harvested grain conveyed on a grain production line often mixes with impurities, including stones, weeds, dust, etc., and needs to be processed after impurities are removed. Through research, the prior art (application number: CN202420239231.7) a grain production and processing impurity removal device is described in the document as "the grain production and processing impurity removal device, by setting the lower layer of the double-layer filter screen surface with a rotatable stirring rod, and by setting the horizontal rod and rotating rod to transmit the swing action between the first mounting frame relative to the second mounting frame to the rotating power of the stirring rod, so that the vibrating screen can drive the stirring rod to uniformly distribute the grain on the second screen at the same time, reducing the impact of grain accumulation on the filtering effect of the double-layer filter screen structure, and also reducing the wear caused by grain accumulation, improving the practicality of the device", but the double-layer filter screen surface in the prior art can easily cover the local mesh, causing incomplete screening and discharging. SUMMARY

[0003] To overcome the defects of the prior art, a grain production and processing impurity removal device is provided to solve the problem of incomplete screening and discharging caused by the double-layer filter screen surface covering the local mesh in the prior art.

[0004] To achieve the above-mentioned purpose, a grain production and processing impurity removal device is provided, which comprises: a grain impurity removal machine and a hopper, the upper end surface of the grain impurity removal machine is welded with a hopper,

[0005] The inside of the grain impurity removal machine is provided with a screening cavity, the left and right side walls of the screening cavity are respectively provided with a air supply net opening and a dust suction net opening, the side wall of the screening cavity is connected with a secondary impurity removal frame through a rotating column, the left side of the secondary impurity removal frame is connected with a servo motor through a rotating column, the lower end surface of the secondary impurity removal frame is provided with a second filter screen, the inside of the secondary impurity removal frame is fixed with a primary impurity removal frame through a connecting column, and the lower end surface of the primary impurity removal frame is provided with a first filter screen.

[0006] Further, the front surface of the grain impurity removal machine is sealingly hinged with a visible door, and the lower surface of the grain impurity removal machine is provided with a discharge port.

[0007] Further, the lower surface of the discharge port is symmetrically attached with an elastic baffle, and the side end of the elastic baffle is hinged with the grain impurity removal machine, and the upper surface of the elastic baffle is connected with a spring.

[0008] Further, the right side of the grain impurity removing machine is connected with the dust suction net opening through a dust suction pipeline, and the left side of the grain impurity removing machine is connected with the air supply net opening through an air supply pipeline.

[0009] Further, the upper end face of the first impurity removing frame is provided with a feeding opening, and the upper end face of the second impurity removing frame is provided with an impurity discharging groove.

[0010] Further, the feeding opening is inserted with a feeding hose, the upper end of the feeding hose is connected with a hopper, and the lower end of the feeding hose is fixed with a metal sleeve.

[0011] Further, the left side of the grain impurity removing machine is fixed with a servo motor, and the right side of the servo motor is connected with the connecting column of the second impurity removing frame through a coupling.

[0012] The grain production and processing impurity removing device has the advantages that the first impurity removing frame, the second impurity removing frame, the rotating column and the servo motor are used to form the swing screening type impurity removing mechanism, the reciprocating swing first impurity removing frame and the second impurity removing frame drive the grain and impurities in the frame to continuously move along the net face for filtering, the filtered impurities are prevented from covering the mesh holes to affect the normal discharge of the grain, the grain is ensured to be fully and smoothly discharged during impurity removing, the impurity removing efficiency of the grain is improved, the dust in the cavity is sucked and removed through the dust suction net opening and the air supply net opening in the closed impurity removing machine body, the fresh air is supplied, the dust is prevented from being scattered everywhere and mixed into the grain, the external environment is prevented from being polluted, and the safety of the grain impurity removing machine is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a front view structural schematic diagram of the grain production and processing impurity removing device.

[0014] Fig. 2 It is a front view structural schematic diagram of the grain production and processing impurity removing device.

[0015] Fig. 3 It is a side view structural schematic diagram of the grain production and processing impurity removing device.

[0016] Fig. 4 It is a top view structural schematic diagram of the second impurity removing frame.

[0017] In the figure: 1, grain impurity removing machine; 11, visual door; 12, discharging port; 13, elastic baffle; 14, screening cavity; 15, servo motor; 16, shaft coupling; 17, air supply net port; 18, dust suction net port; 19, spring; 2, hopper; 21, discharging hose; 22, metal pipe sleeve; 3, dust suction pipeline; 31, air supply pipeline; 4, first-stage impurity removing frame; 41, first filter screen; 42, feeding port; 5, second-stage impurity removing frame; 51, rotating column; 52, impurity discharging slot; 53, second filter screen; 54, connecting column. DETAILED DESCRIPTION

[0018] Referring to Figs. 1 to 4 The utility model provides a kind of impurity removing device for grain production and processing, comprising: grain impurity removing machine 1 and hopper 2, grain impurity removing machine 1 upper end surface is welded with hopper 2,

[0019] Grain impurity removing machine 1 inside is provided with screening cavity 14, and screening cavity 14 left and right side wall is provided with air supply net port 17 and dust suction net port 18 respectively, and screening cavity 14 side wall is connected with second-stage impurity removing frame 5 by rotating column 51, and second-stage impurity removing frame 5 left side is connected with servo motor 15 by rotating column 51, and second-stage impurity removing frame 5 lower end surface is provided with second filter screen 53, and second-stage impurity removing frame 5 inside is fixed with first-stage impurity removing frame 4 by connecting column 54, and first-stage impurity removing frame 4 lower end surface is provided with first filter screen 41.

[0020] First, grain is introduced into hopper 2, so that discharging hose discharges grain in hopper 2 into first-stage impurity removing frame 4, at this time, servo motor 15 drives first-stage impurity removing frame 4 and second-stage impurity removing frame 5 to reciprocate, to accelerate the filtering speed of grain in impurity removing frame, and finally, grain is discharged from the discharging port 12 of grain impurity removing machine 1, while dust suction pipeline 3 sucks up the dust stirred up in the cavity of grain impurity removing machine 1, and air supply pipeline 31 sends fresh air into the cavity of grain impurity removing machine 1.

[0021] In the embodiment, the front surface of grain impurity removing machine 1 is hingedly sealed with visual door 11, and the lower surface of grain impurity removing machine 1 is provided with discharging port 12; and the discharging port 12 is distributed at the lower cavity of screening cavity 14. The lower surface of discharging port 12 is symmetrically attached with elastic baffle 13; and the side end of elastic baffle 13 is hingedly connected with grain impurity removing machine 1, and the upper surface of elastic baffle 13 is connected with spring 19.

[0022] As a preferred embodiment, visual door 11 can be used to observe the operation and cleaning in the cavity of grain impurity removing machine 1, and the screen surface of first-stage impurity removing frame 4 and second-stage impurity removing frame 5 can be cleaned. The amount of grain discharged is controlled by the weight of grain accumulated on the surface of elastic baffle 13, to avoid dust flowing out from the discharging port 12 due to long-term opening.

[0023] In the embodiment, the right side of the grain impurity removing machine 1 is connected with the dust suction net mouth 18 through the dust suction pipeline 3, and the left side of the grain impurity removing machine 1 is connected with the air supply net mouth 17 through the air supply pipeline 31.

[0024] As a preferred embodiment, the dust suction pipeline 3 is convenient for conveying the dust generated by the swing screen in the screen cavity 14 to the dust collector. The air supply pipeline 31 conveys the fresh air sucked by the fan to the air supply net mouth 17 to be discharged, so that the dust flow flows upward and is discharged, and the fresh air enters the cavity from the lower part.

[0025] In the embodiment, the upper end face of the first screen frame 4 is provided with the feeding port 42, and the upper end face of the second screen frame 5 is provided with the screen discharge groove 52; and the screen discharge groove 52 is located at the front and rear sides of the first screen frame 4. The feeding port 42 is inserted with the feeding hose 21, the upper end of the feeding hose 21 is connected with the hopper 2, and the lower end of the feeding hose 21 is fixed with the metal sleeve 22.

[0026] As a preferred embodiment, the first screen frame 4 and the second screen frame 5 are convenient for separating the dust and impurities in the grain, so that the grain falls and is discharged in the swing motion. The feeding hose 21 is convenient for discharging the grain in the hopper 2 into the first screen frame 4 downward, and does not hinder the normal rotation of the first screen frame 4. The metal sleeve 22 is used for avoiding the extrusion of the grain on the feeding hose 21 to cause the inconvenient discharging.

[0027] In the embodiment, the left side of the grain impurity removing machine 1 is fixed with the servo motor 15, and the right side of the servo motor 15 is connected with the connecting column 54 of the second screen frame 5 through the coupling 16.

[0028] As a preferred embodiment, the servo motor 15 is used for controlling the swing angle of the screen frame, so that the screen frame swings back and forth or turns over by 180 degrees, the impurities in the screen frame are poured out, and the impurities filtered out in the screen frame are conveniently and quickly removed.

[0029] The grain impurity removing device for grain production and processing can effectively solve the problem that the grass blades filtered out by the double-layer filter screen cover the local screen holes, so that the screening and discharging are not complete, effectively prevent the filtered impurities from covering the screen holes and affecting the normal discharging of the grain, ensure that the grain is fully and smoothly discharged during the impurity removing, improve the impurity removing efficiency of the grain, facilitate the reduction of the floating and mixing of the dust everywhere, avoid the pollution of the external environment, enhance the safety of the grain impurity removing machine, and be suitable for the grain impurity removing device for grain production and processing.

Claims

1. A grain production processing impurity removal device, comprising: Grain impurity removing machine (1) and hopper (2), the upper end surface of the grain impurity removing machine (1) is welded with hopper (2), characterized by: The inside of the grain impurity removing machine (1) is provided with a screening cavity (14), the left and right side walls of the screening cavity (14) are respectively provided with air supply net mouth (17) and dust suction net mouth (18), the side wall of the screening cavity (14) is connected with secondary impurity removing frame (5) through rotating column (51), the left side of the secondary impurity removing frame (5) is connected with servo motor (15) through rotating column (51), the lower end surface of the secondary impurity removing frame (5) is provided with second filter screen (53), the inside of the secondary impurity removing frame (5) is fixed with primary impurity removing frame (4) through connecting column (54), the lower end surface of the primary impurity removing frame (4) is provided with first filter screen (41).

2. The impurity removal device for grain production and processing according to claim 1, characterized in that, The front surface of the grain impurity removing machine (1) is sealed and hinged with visual door (11), the lower surface of the grain impurity removing machine (1) is provided with discharge port (12); and the discharge port (12) is distributed in the lower cavity of the screening cavity (14).

3. The impurity removal device for grain production and processing according to claim 2, characterized in that, The lower surface of the discharge port (12) is symmetrically attached with elastic baffle (13); and the side end of the elastic baffle (13) is connected with the grain impurity removing machine (1), the upper surface of the elastic baffle (13) is connected with spring (19).

4. The impurity removal device for grain production and processing according to claim 1, characterized in that, The right side of the grain impurity removing machine (1) is connected with dust suction net mouth (18) through dust suction pipeline (3), the left side of the grain impurity removing machine (1) is connected with air supply net mouth (17) through air supply pipeline (31).

5. The impurity removal device for grain production and processing according to claim 1, characterized in that, The upper end surface of the primary impurity removing frame (4) is provided with feeding port (42), the upper end surface of the secondary impurity removing frame (5) is provided with impurity discharging groove (52); and the impurity discharging groove (52) is located at the front and rear sides of the primary impurity removing frame (4).

6. The impurity removal device for grain production and processing according to claim 5, characterized in that, The feeding port (42) is inserted with discharge hose (21), the upper end of the discharge hose (21) is connected with hopper (2), the lower end of the discharge hose (21) is fixed with metal pipe sleeve (22).

7. The grain processing impurity removal device according to claim 1, characterized in that, The left side of the grain impurity removing machine (1) is fixed with servo motor (15), the right side of the servo motor (15) is connected with the connecting column (54) of the secondary impurity removing frame (5) through coupling (16).

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