Grain screening and impurity removing equipment for grain processing

Abstract

The utility model relates to the technical field of grain processing, and discloses grain screening and impurity removing equipment for grain processing, which comprises a machine body, a hopper is fixedly arranged on the machine body, a screening and impurity removing mechanism is arranged on the machine body, and the screening and impurity removing mechanism comprises a motor and a fixed seat. The motor is started to drive the first rotating shaft to rotate, the eccentric wheel on the first rotating shaft lifts the lifting plate up and down in a reciprocating mode, the spring is matched to enable the screening frame to shake continuously, then the purpose of continuous shaking of grains is achieved, the grains stacked together are shaken and screened, and the screening efficiency is improved. According to the grain screening and impurity removing device, the screening and impurity removing efficiency of grains is improved, when the grains fall down from the feeding port, air blown by the fan blades can blow out rice husks and dust in the grains from the impurity outlet, and the screening and impurity removing effect of the grains is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grain processing, in particular to grain screening and impurity removal equipment for grain processing. Background Art

[0002] Grain processing refers to the act of converting raw grain into semi-finished grain or finished grain, or converting semi-finished grain into finished grain. The grain contains a lot of impurities and dust, and needs further processing to screen out impurities.

[0003] For example, the patent with announcement number CN219745466U discloses a grain screening and impurity removal device for grain processing, including a screening box and a filter box fixedly connected to the top of the screening box. The utility model relates to the technical field of grain production and processing. The grain screening and impurity removal device for grain processing is provided with a driving mechanism in the screening box, and by starting the driving motor, the output end of the driving motor drives the main pulley through the coupling to drive the auxiliary pulley with the belt, so that the driving shaft rotates, and the driving shaft drives the transmission rod to cooperate with the connecting block through the transmission wheel, so that the connecting block pulls the screening net through the matching hanging rope during the rotation of the transmission wheel, so that the screening net swings in the air, thereby filtering impurities smaller than the grain during the swinging process, and by cooperating with the filter net in the filter box, the grain is filtered twice to filter out all the impurities of different sizes mixed inside, thereby improving the quality of the screened grain.

[0004] At present, the existing technology adopts a swinging method to swing screen the grains. The swinging method will make the grains piled together take a longer time to screen. At the same time, since the husks are the same size as normal grains, the husks cannot be screened out, affecting the quality of grain screening and impurity removal. Therefore, a grain screening and impurity removal equipment for grain processing is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a grain screening and impurity removal device for grain processing, so as to achieve the purpose of solving the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grain screening and impurity removal device for grain processing, comprising a machine body, a hopper is fixedly mounted on the machine body, and a screening and impurity removal mechanism is arranged on the machine body;

[0007] The screening and impurity removal mechanism includes a motor and a fixed seat, a first rotating shaft is fixedly installed on the output end of the motor, an eccentric wheel is fixedly installed on the first rotating shaft, a guide column is fixedly installed inside the fixed seat, a connecting block is slidably connected to the guide column, a screening frame is fixedly installed on the outer wall of the connecting block, a spring is sleeved on the guide column, a lifting plate is fixedly installed on the outer wall of the screening frame, and the outer wall of the eccentric wheel is in contact with the lifting plate.

[0008] Preferably, a support plate is fixedly mounted on the outer wall of the machine body, the motor is fixedly mounted on the support plate, and the fixing seat is fixedly mounted on the inner wall of the machine body. The setting of the support plate can support the motor.

[0009] Preferably, a through hole is provided on the connecting block, and the guide column passes through the interior of the through hole. There are two springs, and the two springs are respectively sleeved on the upper and lower ends of the guide column, and the connecting block is located between the two springs. The setting of the spring can facilitate the up and down shaking of the screening frame.

[0010] Preferably, a feed port is provided on the upper surface of the hopper, and a discharge port is provided at the bottom of the hopper, and the provision of the feed port allows the grain to be conveniently poured into the interior of the hopper.

[0011] Preferably, a blowing port is provided on the side wall of the hopper, a fixing ring is fixedly installed on the blowing port, the interior of the fixing ring is rotatably connected to a second rotating shaft via a bearing, fan blades are fixedly installed on the second rotating shaft, and the fan blades are driven to rotate by the second rotating shaft, so that air can be blown onto the grain to blow away the husks and dust.

[0012] Preferably, a second pulley is fixedly mounted on the first rotating shaft, a belt is transmission-connected to the outer wall of the second pulley, the other end of the belt is transmission-connected to the first pulley, and the first pulley is fixedly mounted on the second rotating shaft. The arrangement of the pulley and the belt can facilitate the motor to drive the second rotating shaft to rotate.

[0013] The utility model provides a grain screening and impurity removal device for grain processing, which has the following beneficial effects:

[0014] (1) The utility model starts the motor to drive the first rotating shaft to rotate, so that the eccentric wheel on the first rotating shaft lifts the lifting plate up and down, and cooperates with its spring to make the screening frame shake continuously, thereby achieving the purpose of continuously shaking the grains, so that the grains piled together are shaken and screened, thereby improving the efficiency of screening and removing impurities from the grains.

[0015] (2) The utility model drives the first rotating shaft to rotate by the motor, and at the same time, the first pulley, the belt and the second pulley drive the second rotating shaft to rotate, so that the fan blades blow air to the inside of the hopper. When the grains fall from the feed inlet, the wind blown by the fan blades can blow the husks and dust in the grains out of the impurity outlet, further improving the screening and impurity removal effect of the grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the hopper of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the screening and impurity removal mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fixing seat of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the second pulley of the utility model.

[0022] In the figure: 1. machine body; 2. screening and impurity removal mechanism; 201. motor; 202. first rotating shaft; 203. eccentric wheel; 204. lifting plate; 205. fixing seat; 206. screening frame; 207. connecting block; 208. spring; 209. guide column; 3. hopper; 4. feed inlet; 5. air outlet; 6. impurity outlet; 7. fixing ring; 8. second rotating shaft; 9. first pulley; 10. belt; 11. fan blade; 12. second pulley. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1:

[0026] like Figure 1-5 As shown, the utility model provides a technical solution: a grain screening and impurity removal device for grain processing, comprising a machine body 1, a hopper 3 is fixedly mounted on the machine body 1, and a screening and impurity removal mechanism 2 is arranged on the machine body 1;

[0027] The screening and impurity removal mechanism 2 includes a motor 201 and a fixed seat 205. The output end of the motor 201 is fixedly installed with a first rotating shaft 202, and an eccentric wheel 203 is fixedly installed on the first rotating shaft 202. A guide column 209 is fixedly installed inside the fixed seat 205. A connecting block 207 is slidably connected to the guide column 209. A screening frame 206 is fixedly installed on the outer wall of the connecting block 207. A spring 208 is sleeved on the guide column 209. A lifting plate 204 is fixedly installed on the outer wall of the screening frame 206, and the outer wall of the eccentric wheel 203 is in contact with the lifting plate 204.

[0028] A support plate is fixedly mounted on the outer wall of the machine body 1 , the motor 201 is fixedly mounted on the support plate, and the fixing seat 205 is fixedly mounted on the inner wall of the machine body 1 . The setting of the support plate can support the motor 201 .

[0029] A through hole is provided on the connecting block 207, and a guide column 209 passes through the interior of the through hole. There are two springs 208, and the two springs 208 are respectively sleeved on the upper and lower ends of the guide column 209, and the connecting block 207 is located between the two springs 208. The setting of the spring 208 can facilitate the up and down shaking of the screening frame 206.

[0030] A feed port 4 is provided on the upper surface of the hopper 3 , and a discharge port is provided at the bottom of the hopper 3 . The feed port 4 can be used to conveniently pour grain into the hopper 3 .

[0031] In this embodiment, the motor 201 is started to drive the first rotating shaft 202 to rotate, so that the eccentric wheel 203 on the first rotating shaft 202 lifts the lifting plate 204 up and down, and cooperates with its spring 208 to make the screening frame 206 shake continuously, thereby achieving the purpose of continuous shaking of the grains, so that the grains piled together are shaken and screened, thereby improving the efficiency of screening and removing impurities from the grains.

[0032] Embodiment 2:

[0033] like Figure 1-5 As shown, on the basis of embodiment 1, the utility model provides a technical solution: a blowing port 5 is opened on the side wall of the hopper 3, a fixing ring 7 is fixedly installed on the blowing port 5, the interior of the fixing ring 7 is rotatably connected to a second rotating shaft 8 through a bearing, a fan blade 11 is fixedly installed on the second rotating shaft 8, and the fan blade 11 is driven to rotate by the second rotating shaft 8, so that air can be blown to the grain to blow away the husks and dust.

[0034] A second pulley 12 is fixedly mounted on the first rotating shaft 202, a belt 10 is transmission-connected to the outer wall of the second pulley 12, the other end of the belt 10 is transmission-connected to the first pulley 9, and the first pulley 9 is fixedly mounted on the second rotating shaft 8. The arrangement of the pulley and the belt 10 can facilitate the motor 201 to drive the second rotating shaft 8 to rotate.

[0035] In this embodiment, while the motor 201 drives the first rotating shaft 202 to rotate, the first pulley 9, the belt 10 and the second pulley 12 drive the second rotating shaft 8 to rotate, so that the fan blades 11 blow air to the inside of the hopper 3. When the grains fall from the feed port 4, the wind blown by the fan blades 11 can blow the husks and dust in the grains out of the impurity outlet 6, further improving the screening and impurity removal effect of the grains.

[0036] When in use, the first rotating shaft 202 is driven to rotate by starting the motor 201, so that the eccentric wheel 203 on the first rotating shaft 202 lifts the lifting plate 204 up and down, and cooperates with its spring 208 to make the screening frame 206 shake continuously, thereby achieving the purpose of continuous shaking of the grains, so that the grains piled together are shaken and screened, thereby improving the efficiency of screening and removing impurities from the grains; while the first rotating shaft 202 is driven to rotate by the motor 201, the first pulley 9, the belt 10 and the second pulley 12 drive the second rotating shaft 8 to rotate, so that the fan blades 11 blow air to the inside of the hopper 3, and when the grains fall from the feed port 4, the wind blown by the fan blades 11 can blow out the husks and dust in the grains from the impurity outlet 6, further improving the screening and removing impurities from the grains.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grain screening and impurity removal device for grain processing, comprising a body (1), characterized in that: A hopper (3) is fixedly mounted on the machine body (1), and a screening and impurity removal mechanism (2) is provided on the machine body (1); The screening and impurity removal mechanism (2) comprises a motor (201) and a fixed seat (205); a first rotating shaft (202) is fixedly mounted on the output end of the motor (201); an eccentric wheel (203) is fixedly mounted on the first rotating shaft (202); a guide column (209) is fixedly mounted inside the fixed seat (205); a connecting block (207) is slidably connected to the guide column (209); a screening frame (206) is fixedly mounted on the outer wall of the connecting block (207); a spring (208) is sleeved on the guide column (209); a lifting plate (204) is fixedly mounted on the outer wall of the screening frame (206); and the outer wall of the eccentric wheel (203) is in contact with the lifting plate (204).

2. The grain screening and impurity removal equipment for grain processing according to claim 1, characterized in that: A support plate is fixedly mounted on the outer wall of the machine body (1), the motor (201) is fixedly mounted on the support plate, and the fixing seat (205) is fixedly mounted on the inner wall of the machine body (1).

3. The grain screening and impurity removal equipment for grain processing according to claim 1, characterized in that: The connecting block (207) is provided with a through hole, the guide column (209) passes through the interior of the through hole, the number of the springs (208) is two, the two springs (208) are respectively sleeved on the upper end and the lower end of the guide column (209), and the connecting block (207) is located between the two springs (208).

4. The grain screening and impurity removal equipment for grain processing according to claim 1, characterized in that: The upper surface of the hopper (3) is provided with a feed inlet (4), and the bottom of the hopper (3) is provided with a discharge outlet.

5. The grain screening and impurity removal equipment for grain processing according to claim 1, characterized in that: The side wall of the hopper (3) is provided with an air blowing port (5), a fixing ring (7) is fixedly mounted on the air blowing port (5), a second rotating shaft (8) is rotatably connected to the interior of the fixing ring (7) via a bearing, and a fan blade (11) is fixedly mounted on the second rotating shaft (8).

6. The grain screening and impurity removal equipment for grain processing according to claim 5, characterized in that: A second pulley (12) is fixedly mounted on the first rotating shaft (202); a belt (10) is transmission-connected to the outer wall of the second pulley (12); the other end of the belt (10) is transmission-connected to the first pulley (9); and the first pulley (9) is fixedly mounted on the second rotating shaft (8).

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