CN103464376A - Automatic rice screener and rice screening method - Google Patents

Abstract

The invention provides an automatic rice screener and a rice screening method. The automatic rice screener comprises a side plate, a hopper, a blow mechanism and a screening mechanism, wherein the hopper, the blow mechanism and the screening mechanism are disposed on the side plate sequentially from top to bottom. The blow mechanism comprises a motor and fan blades, wherein the motor is disposed on the side plate and the fan blades are driven to rotate by the motor. The screening mechanism comprises a screen holder reciprocating below the hopper and a screen which is nested in the screen holder and which moves with the screen holder. One end of the screen holder is provided with a rectangular guide groove. A guide post driven by a drive device to do circular motion constantly is disposed inside the guide groove. When the guide post does circular motion, the guide post contacts with two long sides of the guide groove, perpendicular to a slide, by turns, and the screen holder is pushed to reciprocate along the slide; the fan blades disposed on the side of grains falling from the hopper to the screen blow air towards the grains. The grains are automatically screened twice by the mechanical device, so that impurities inside can be screened and clean grains are obtained; the whole process is efficient and saves energy.

Description

A kind of automatic rice sifting device and rice sifting method

the

technical field

The invention belongs to the field of mechanical design and manufacture of agricultural grain sieving, and in particular relates to an automatic rice sieving device and a method for automatically sieving rice using the device.

Background technique

After the annual grain harvest in the countryside, the problem of drying the grain is faced. With the disappearance of the original large grain farms in the countryside, farmers generally directly dry the grain on the ground. After drying, there will be gravel, soil particles and other Tiny debris. Factors need a rice sieving device to sieve out foreign matter, so as to obtain cleaner grain.

Contents of the invention

Purpose of the invention: In order to solve the problem that farmers cannot sieve out the impurities in the grain with a dustpan, and it is time-consuming and labor-intensive, the present invention provides an automatic rice sieving device and a method for automatically sifting rice using the device , thereby improving the efficiency of farmers sifting rice.

Technical solution: In order to solve the above technical problems, the technical solution used in the present invention is:

An automatic rice sifting device, characterized in that it includes a side plate, a funnel arranged on the side plate from top to bottom, an air blowing mechanism, and a rice sifting mechanism;

The blowing mechanism includes a motor arranged on the side plate and a fan blade driven by the motor;

The rice sifting mechanism includes a sieve seat reciprocating under the funnel and a sieve nested in the sieve seat and moving at the same time. One end of the sieve seat is a rectangular guide groove, and a drive device is set in the guide groove. The guide column that always moves in a circle, when the guide column moves in a circle, the wheel stays in contact with the two long sides perpendicular to the slide rail on the guide groove, pushing the sieve seat to reciprocate along the slide rail;

The fan blade is arranged on the side of the grain falling from the funnel to the sieve, and blows the airflow towards the direction of the grain.

The guide post is a cylinder, the bottom surface of which is connected to one end of a horizontally arranged rod-shaped guide rod, and the other end of the guide rod is connected to the drive shaft of the rotating motor, and the rotating motor drives the guide rod to rotate around the drive shaft of the rotating motor. At the same time, it drives the guide post to make a circular motion around the drive shaft of the rotating motor.

It also includes a sundry collection box arranged under the rice sifting mechanism.

The sieve seat is arranged on two parallel slide rails, and the slide rails are fixed on the side plates.

A sleeve is arranged on the upper side of the side plate, and the funnel is supported above the rice sifting mechanism by the sleeve.

The rotating motor is fixed on the side plate between the two slide rails through the motor fixing plate.

The lower surface of the sieve seat is provided with a circular hole with a diameter smaller than that of the grain.

The debris collection box is fixed on the side plate.

The rice sifting method based on the automatic rice sifting device is characterized in that: comprising the following steps:

Step 1. Pour the grain into the funnel;

Step 2. During the process of the grains leaking through the lower end of the funnel, driven by the airflow generated by the fan blades rotating in the air blowing mechanism, a part of sundries lighter in weight than the grains are separated from the grains to realize the first screening;

Step 3. The rotating motor rotates continuously to make the guide post connected to the rotating motor through the guide rod perform a circular motion. When the guide post makes a circular motion, the wheel stays behind and pushes the sieve seat to reciprocate along the slide rail, thereby driving the sieve nested on the sieve seat. The relative movement of the grains, the debris smaller than the sieve hole leaks out, and the second sieving is realized;

Step 4, the sieved sundries fall into the sundries collection box below the sieve.

One end of the sieve seat is a rectangular guide groove, a cylindrical guide post is arranged in the guide groove, the bottom surface of the guide post is connected to one end of a horizontally arranged rod-shaped guide rod, and the other end of the guide rod is connected The driving shaft of the motor is connected, and the rotating motor drives the guide rod to rotate around the driving shaft of the rotating motor, and at the same time drives the guide column to make a circular motion around the driving shaft of the rotating motor;

When the guide column is moving in a circle, the wheel stays in contact with the two long sides perpendicular to the slide rail on the guide groove, and pushes the sieve seat to reciprocate along the slide rail.

Beneficial effects: the present invention uses an automatic rice sieving device to sieve grains, realizes automatic sieving of grains, has high work efficiency, and at the same time, the whole device has a simple structure and low cost, and is suitable for purchase and use by farmers.

Description of drawings

Figure 1 is a schematic diagram of the structure of the automatic rice screening device.

Detailed ways

Below in conjunction with accompanying drawing and example the present invention will be further described.

The automatic rice sifting device of the present invention, as shown in Figure 1, includes a side plate 13, a funnel 1 fixed on the side plate 13 through a sleeve 2, an air blowing mechanism, a rice sifting mechanism and a debris collection box 12.

The sleeve 2 is fixed on the uppermost part of the side plate 13, the funnel 1 is fixed in the sleeve 2, and the air blowing mechanism and the rice sifting mechanism are arranged downwards successively, and the debris collection box 12 is fixed on the lowermost part of the side plate 13. the

The blowing mechanism includes a motor 3 and a fan blade 4 driven by the motor 3 , and the motor 3 is fixed on the side plate 13 . The blades 4 are arranged laterally between the funnel 1 and the sieve 6 . During the falling process of the grains leaking from the funnel 1 towards the sieve 6, driven by the airflow generated by the rotating fan blade 4, a part of the lighter sundries such as weeds are separated from the grains draining down to realize the first screening point.

The rice sifting mechanism includes a sieve 6 that can move left and right under the hopper 1 , and the grains leaked from the hopper 1 fall into the moving sieve 6 . The sieve 6 is detachably nested on the sieve base 5, and the sieve base 5 is placed on two parallel slide rails 7 and can slide left and right along the slide rails 7.

The left and right motion of the sieve seat 5 is promoted and realized by the circular motion of the guide post 8 . One end of the sieve seat 5 is a rectangular guide groove 51, the long side 511 of the guide groove 51 is perpendicular to the slide rail 7, the short side 512 of the guide groove 51 is parallel to the slide rail 7, and the guide post 8 is arranged in the guide groove 51, by The rectangular frame surrounded by the long side 511 and the short side 512 of the guide groove 51 surrounds it. The guide rod 9 is a rod-shaped object arranged horizontally, one end of which is hinged to the drive shaft of the rotating motor 10, and the other end is fixedly connected to a cylindrical guide post 8, and the rotating motor 10 drives the guide rod 9 to take the motor drive shaft as the center Carry out rotary motion, at the same time, drive guide post 8 to make circular motion around the drive shaft of rotating motor 10; When guide post 8 moves in a circle, the long side 511 of guide groove 51 is touched by the wheel, because long side 511 is longer, And do not touch short side 512, therefore, the two long sides 511 of guide groove 51 are touched left and right respectively in the wheel stay, thereby promote sieve seat 5 to move left and right along slide rail 7. The rotary motor 10 is fixed on the side plate 13 between the two slide rails 7 through the motor fixing plate 11 .

The lower surface of the sieve seat 5 is filled with round holes with a diameter smaller than ordinary grains, which can pass through the sundries falling from the 6 holes of the sieve, but the grains with smaller particle sizes falling through the 6 holes of the sieve are caught by the lower surface of the sieve seat 5 , to avoid grains with smaller particle size being sifted out and missing.

In other embodiments, the sieve seat 5 can also be a frame structure, and the sieve 6 is nested on the frame, and the sundries falling from the holes of the sieve 6 directly fall into the sundry collection box 12 .

When the sieve 6 carries grains and moves continuously, the sundries carried therein are smaller in size than the grains leak out from the sieve 6, and the sieved sundries fall into the sundries collection box 12 through the circular hole on the lower surface of the sieve base 5 , so as to realize the second sieving. After a period of sieving, the sieve 6 can be taken out from the sieve seat 5, and the purer grains obtained after sieving on the sieve 6 are collected.

In order to better collect the sundries sieved out from the sieve 6, the sundry collection box 12 is set longer and can include the entire range of motion of the left and right motions of the sieve 6.

 The method of using an automatic rice sieving device to sieve rice includes the following steps:

  Step 1. Pour an appropriate amount of dried grains or other grains into the funnel 1;

Step 2. During the process of the grains leaking through the lower end of the funnel 1, driven by the airflow generated by the rotating fan blade 4 in the air blowing mechanism, a part of the lighter impurities such as weeds are separated from the grains to realize the first secondary screening;

Step 3. Rotating motor 10 rotates continuously to make the guide post 8 connected to the rotating motor 10 through the guide rod 9 perform a circular motion, and the guide post 8 leaves the ground to push the sieve seat 5 to continuously move left and right along the slide rail 7, thereby driving the sieve The grains in the sieve 6 nested on the seat 5 move relatively, and the small-sized debris leaks out from the holes of the sieve 6 and the round holes on the lower surface of the sieve seat 5, thereby realizing the second screening;

Step 4, the sieved sundries fall into the sundries collection box 12 for easy cleaning, and at the same time, after a period of sieving, the sieve 6 can be taken out from the sieve holder 5, and the purer obtained after sieving on the sieve 6 grains are collected.

The above step 2 and step 3 are the key steps of the present invention. The sundries in the grain can be screened out through the second sieving, so as to obtain clean grain, which has the characteristics of high efficiency, energy saving, and low cost.

Claims (10)

1. an Automatic sieve rice device is characterized in that: comprise side plate, be successively set on funnel, inflatable body, the rice screening mechanism on side plate from top to bottom;

Described inflatable body comprises the motor be arranged on side plate and is driven the flabellum rotated by motor;

Described rice screening mechanism is included in the reciprocating sieve seat in funnel below and is nested in the sieve simultaneously moved in the sieve seat, the guide groove that one end of sieve seat is a rectangle, arrange one in described guide groove and drive by drive unit the guide pillar circled all the time, guide pillar is when circular motion, wheel touches on guide groove two the long limits perpendicular with slide rail with staying, promotes the sieve seat and moves back and forth along slide rail;

Described flabellum is arranged on the side of the cereal fallen to sieve by funnel, and blows air-flow towards the cereal direction.

2. Automatic sieve rice device according to claim 1, it is characterized in that: described guide pillar is cylinder, bottom surface is connected to horizontally disposed shaft-like guide rod one end, the guide rod other end is connected with the driving shaft of electric rotating machine, electric rotating machine drives guide rod and take the driving shaft of electric rotating machine when axle center rotatablely moves, and drives guide pillar and circles around the driving shaft of electric rotating machine.

3. Automatic sieve rice device according to claim 1 is characterized in that: also comprise a refuse collecting case that is arranged on the rice screening mechanism below.

4. Automatic sieve rice device according to claim 1, it is characterized in that: described sieve seat is arranged on two parallel slide rails, and described slide rail is fixed on side plate.

5. Automatic sieve rice device according to claim 1, it is characterized in that: described side plate top arranges a sleeve, by described sleeve, described funnel is supported in to the rice screening mechanism top.

6. according to the described Automatic sieve rice of claim 1 or 3 device, it is characterized in that: described electric rotating machine is fixed on the side plate between two one slide rails by motor fixing plate.

7. Automatic sieve rice device according to claim 1, it is characterized in that: described sieve seat lower surface arranges the circular hole that diameter is less than cereal.

8. Automatic sieve rice device according to claim 3, it is characterized in that: described refuse collecting case is fixed on side plate.

9. the sieve meter Fang Fa based on Automatic sieve rice device claimed in claim 1 is characterized in that: comprise the following steps:

Step 1, cereal is poured in funnel;

In step 2, the process of leaking under by the funnel lower end at cereal, under the air-flow that the flabellum rotated in inflatable body produces drives, the foreign material that a part of quality is light than cereal separate with cereal, realize screening for the first time;

Step 3, electric rotating machine constantly rotate and make the guide pillar be connected with electric rotating machine by guide rod carry out circular motion, guide pillar circles hour wheel and promotes the sieve seat with staying and move back and forth along slide rail, thereby drive the cereal relative motion in sieve nested on the sieve seat, the foreign material that size is less than the sieve eyelet spill, and realize screening for the second time;

Step 4, the foreign material that sieve out fall into the refuse collecting case of sieve below.

10. Automatic sieve rice method according to claim 9, it is characterized in that: the guide groove that an end of described sieve seat is a rectangle, the guide pillar of cylindrical shape is arranged in described guide groove, described guide pillar bottom surface is connected to horizontally disposed shaft-like guide rod one end, the guide rod other end is connected with the driving shaft of electric rotating machine, electric rotating machine drives guide rod and take the driving shaft of electric rotating machine when axle center rotatablely moves, and drives guide pillar and circles around the driving shaft of electric rotating machine;

Guide pillar is when circular motion, and wheel touches on guide groove two the long limits perpendicular with slide rail with staying, promotes the sieve seat and moves back and forth along slide rail.

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