Screening machine for grain processing

Abstract

The utility model relates to the technical field of grain processing, in particular to a screening machine for grain processing, which comprises a box body, a reciprocating screw rod and a rotating rod are rotatably connected onto the box body, a raking component is arranged on the reciprocating screw rod, and a first guide plate, a second guide plate and an exhaust shunt pipe are fixedly connected onto the inner wall of one side of the box body. A feeding hole is formed in the upper surface of the box body; a rotating rod is arranged in the box body, a transmission assembly is arranged on the rotating rod, a sliding frame is installed in the box body in a sliding mode, an air bag is fixedly connected to the sliding frame, the air bag is connected with the exhaust flow dividing pipe through a hose, one-way valves are installed on the air bag and the hose, and an extrusion assembly is arranged on the rotating rod. According to the grain screening device, secondary screening treatment can be conducted on grains, impurities in the grains can be screened out conveniently, shells and leaves can be screened out well, the grain screening effect is good, and grain processing is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain processing, especially a screening machine for grain processing. BACKGROUND

[0002] With the continuous development of society and the continuous progress of science and technology, the technology related to grain processing is also constantly improving. The scope of grain covers a wide range, including rice, wheat, millet, soybeans and other coarse grains. During the processing of grain, screening machinery is needed for screening treatment.

[0003] The screening machinery currently in use cannot effectively screen out the hulls and leaves from the grain due to their small mass, resulting in poor screening effect and hindering the processing of grain. SUMMARY

[0004] The utility model discloses a screening machine for grain processing to solve the problem of poor screening effect of the screening machinery currently in use.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A screening machine for grain processing includes a box, a reciprocating screw rod and a rotating rod are rotatably connected to the box, a rake assembly is provided on the reciprocating screw rod, a first guide plate, a second guide plate and an exhaust shunt pipe are fixedly connected to the inner wall of one side of the box, and a feed inlet is formed in the upper surface of the box.

[0007] A transmission assembly is provided on the rotating rod, a sliding frame is slidably installed in the box, an air bag is fixedly connected to the sliding frame, the air bag is connected to the exhaust shunt pipe through a hose, a one-way valve is installed on the air bag and the hose, an extrusion assembly is provided on the rotating rod, the extrusion assembly includes a cam fixedly installed on the rotating rod, an installation block is connected to the sliding frame through bolts, and a screen is fixedly connected to the installation block.

[0008] Preferably, the rake assembly includes a sliding block threadedly connected to the reciprocating screw rod, a rake bar is fixedly connected to the sliding block, and an opening for the forward and backward sliding of the sliding block is formed in the first guide plate.

[0009] Preferably, the transmission assembly comprises a transmission belt, the reciprocating wire rod and the rotating rod are fixedly connected with transmission wheels, and the two transmission wheels are connected through the transmission belt.

[0010] Preferably, the sliding frame is fixedly connected with a spring, and the spring is fixedly connected with the exhaust shunt.

[0011] Preferably, a limiting groove is formed in the inner wall of one side of the box body, and the sliding frame is slidably connected with the limiting groove.

[0012] Preferably, the box body is rotatably connected with a box door, and the box door is fixedly connected with a transparent observation window.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The first guide plate is provided with a plurality of air bags, and the air bags are connected with the soft tube through the exhaust shunt, so that the air bags can be inflated and deflated through the soft tube, and the air bags can blow the husks and leaves mixed in the grains out when the grains are raked back and forth on the first guide plate, so that the husks and leaves can be separated from the grains. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the screening machine for grain processing according to the utility model;

[0016] Figure 2 It is a side view of the screening machine for grain processing according to the utility model;

[0017] Figure 3 It is a front view of the screening machine for grain processing according to the utility model;

[0018] Figure 4 It is a front view of the screening machine for grain processing according to the utility model;

[0019] Figure 5 It is a front view of the screening machine for grain processing according to the utility model;

[0020] In the figure: 1 box, 2 box door, 3 transparent observation window, 4 feed inlet, 5 first guide plate, 6 cam, 7 hose, 8 one-way valve, 9 spring, 10 exhaust shunt, 11 air bag, 12 second guide plate, 13 screen, 14 limit groove, 15 sliding frame, 16 rotating rod, 17 transmission belt, 18 reciprocating screw rod, 19 sliding block, 20 rake, 21 bolt, 22 mounting block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] The terms such as "up", "down", "left", "right", "middle" and "one" cited in the utility model are only for the convenience of clear description, not to limit the scope of the utility model, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model without substantial change of the technical content.

[0023] Referring to Figures 1-5 A screening machine for grain processing, comprising a box 1, a reciprocating screw rod 18 and a rotating rod 16 are rotatably connected to the box 1, a rake assembly is arranged on the reciprocating screw rod 18, a first guide plate 5, a second guide plate 12 and an exhaust shunt 10 are fixedly connected to the inner wall of one side of the box 1, a feed inlet 4 is formed in the upper surface of the box 1, a transmission assembly is arranged on the rotating rod 16, a sliding frame 15 is slidably installed in the box 1, an air bag 11 is fixedly connected to the sliding frame 15, the air bag 11 is connected with the exhaust shunt 10 through a hose 7, a one-way valve 8 is installed on the air bag 11 and the hose 7, the air bag 11 is in communication with clean gas outside the box 1, the one-way valve 8 can prevent air from being delivered to the inside of the hose 7 through the exhaust shunt 10, an extrusion assembly is arranged on the rotating rod 16, the extrusion assembly comprises a cam 6 fixedly installed on the rotating rod 16, a mounting block 22 is connected to the sliding frame 15 through a bolt 21, a mounting groove for connecting the mounting block 22 is formed in the sliding frame 15, the supporting strength of the mounting block 22 is sufficient, and a screen 13 is fixedly connected to the mounting block 22.

[0024] The rake assembly comprises a sliding block 19 threadedly connected with the reciprocating screw rod 18, and the rake 20 is fixedly connected to the sliding block 19. The first guide plate 5 is provided with an opening for the sliding block 19 to slide back and forth. The motor drives the reciprocating screw rod 18 to rotate, and the sliding block 19 moves back and forth along the reciprocating screw rod 18. The rake 20 moves back and forth to rake and separate the grains on the first guide plate 5. The opening limits the movement track of the sliding block 19. The opening and the feed inlet 4 are staggered to effectively prevent the grains from leaking out of the opening. The cross sections of the first guide plate 5 and the second guide plate 12 are both L-shaped.

[0025] The transmission assembly comprises a transmission belt 17, and the reciprocating screw rod 18 and the rotating rod 16 are both fixedly connected with transmission wheels. The two transmission wheels are connected by the transmission belt 17. When the reciprocating screw rod 18 rotates, the rotating rod 16 also rotates under the common transmission action of the transmission wheels and the transmission belt 17. The sliding frame 15 is fixedly connected with the spring 9, and the spring 9 is fixedly connected with the exhaust shunt pipe 10. The cam 6 is pressed and separated from the sliding frame 15 multiple times during rotation. When the sliding frame 15 is pressed, it moves towards the exhaust shunt pipe 10. The air bag 11 abuts against the surface of the exhaust shunt pipe 10, and the spring 9 deforms.

[0026] A limiting groove 14 is formed in the side inner wall of the box body 1, and the sliding frame 15 is slidably connected with the limiting groove 14. The limiting groove 14 limits the movement track of the sliding frame 15 to prevent the sliding frame 15 from separating from the side inner wall of the box body 1. The box door 2 is rotatably connected to the box body 1, and the transparent observation window 3 is fixedly connected to the box door 2. The grains can be conveniently and intuitively observed through the transparent observation window 3. The impurities and grains in the box body 1 can be conveniently and timely taken out.

[0027] The utility model discloses, using, gradually with the grain of proper amount through feed inlet 4 is dropped to the inside box 1, and the motor is electrified work simultaneously, and the grain will drop to the first material guide plate 5 on the inclination, and the motor drives reciprocating screw rod 18 to rotate simultaneously, and the sliding block 19 will move back and forth along reciprocating screw rod 18, and rake 20 moves back and forth in the process can rake the grain on the first material guide plate 5 and handle, avoid the grain to accumulate together, and the grain is dispersed and slides along the first material guide plate 5, under the common transmission of transmission wheel and transmission belt 17, rotating rod 16 will also rotate simultaneously, and cam 6 rotates in the process will extrude, separate sliding frame 15 for many times, and sliding frame 15 is extruded and will move to the direction close to exhaust shunt pipe 10, and the surface of air bag 11 and exhaust shunt pipe 10 abuts, and the gas in the air bag 11 is extruded and deformed and is transported to exhaust shunt pipe 10 in the inside through hose 7, and is discharged from the multiple exhaust holes on exhaust shunt pipe 10, and when the gas is discharged, the shell and leaf mixed in the grain that slides out can be blown out, and the grain will fall on the second material guide plate 12 subsequently, and finally slides along the second material guide plate 12 and falls on the screen 13, and the screen 13 moves back and forth along with sliding frame 15, and the grain can be screened twice in the process, so as to screen the impurity in the grain, and the shell and leaf can be screened out, and the screening effect of the grain is better, and it is favorable to the processing of the grain.

[0028] In the utility model, unless another definite provision and limitation, the term "installation", "link", "connection", "fix" and so on term should do broad sense understanding.

[0029] The above only for the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled in the art technical personnel in the utility model disclosed technical range, according to the utility model technical scheme and the utility model concept of the utility model are equivalent to replace or change, all should be covered in the protection scope of the utility model.

Claims

1. A screening machine for grain processing, comprising a housing (1), characterized in that, The box (1) is rotatably connected to a reciprocating screw (18) and a rotating rod (16). A rake assembly is provided on the reciprocating screw (18). A first guide plate (5), a second guide plate (12), and an exhaust diversion pipe (10) are fixedly connected to the inner wall of one side of the box (1). A feed inlet (4) is provided on the upper surface of the box (1). A transmission assembly is provided on the rotating rod (16). A sliding frame (15) is slidably installed inside the housing (1). An airbag (11) is fixedly connected to the sliding frame (15). The airbag (11) is connected to the exhaust diversion pipe (10) through a hose (7). A one-way valve (8) is installed on both the airbag (11) and the hose (7). A compression assembly is provided on the rotating rod (16). The compression assembly includes a cam (6) fixedly installed on the rotating rod (16). An mounting block (22) is connected to the sliding frame (15) by bolts (21). A screen (13) is fixedly connected to the mounting block (22).

2. The screening machinery for grain processing according to claim 1, characterized in that, The rake assembly includes a slider (19) threadedly connected to the reciprocating screw (18), a rake bar (20) fixedly connected to the slider (19), and an opening for the slider (19) to slide back and forth on the first guide plate (5).

3. A screening machine for grain processing according to claim 1, characterized in that, The transmission assembly includes a transmission belt (17), and transmission wheels are fixedly connected to the reciprocating screw (18) and the rotating rod (16). The two transmission wheels are connected by the transmission belt (17).

4. A screening machine for grain processing according to claim 1, characterized in that, A spring (9) is fixedly connected to the sliding frame (15), and the spring (9) is fixedly connected to the exhaust diversion pipe (10).

5. A screening machine for grain processing according to claim 1, characterized in that, A limiting groove (14) is provided on one side of the inner wall of the box (1), and the sliding frame (15) and the limiting groove (14) are slidably connected.

6. A screening machine for grain processing according to claim 1, characterized in that, The box body (1) is rotatably connected to a door (2), and a transparent observation window (3) is fixedly connected to the door (2).

Images