CN109332143B

CN109332143B - Rice sieving mechanism

Info

Publication number: CN109332143B
Application number: CN201811192446.3A
Authority: CN
Inventors: 章云; 张贝尼; 章飞云
Original assignee: Jixi Yuandao Agricultural Industrial Technology Co ltd
Current assignee: Jixi Yuandao Agricultural Industrial Technology Co ltd
Priority date: 2018-10-13
Filing date: 2018-10-13
Publication date: 2021-07-30
Anticipated expiration: 2038-10-13
Also published as: CN109332143A

Abstract

The invention relates to a rice screening device which comprises a screen (6) placed in a screening device shell (5), a driving rod (10) penetrating through the screen (6) and a cylinder (12), wherein the driving rod (10) is arranged in the cylinder (12) and is in threaded connection with the cylinder (12), the cylinder (12) is in rotating connection with the inner bottom surface of the shell (5), two ends of the driving rod (10) are provided with magnetic driving parts enabling the driving rod (10) to move up and down, and fan blades (8) are coupled to the outer part of the cylinder (12). When the driving rod moves up and down, the fan blades are driven to rotate through the cylinder, so that the finely-crushed rice is filtered out from the screen.

Description

Rice sieving mechanism

Technical Field

The invention belongs to the technical field of rice processing, and particularly relates to a rice screening device.

Background

The rice is a finished product prepared by the working procedures of rice cleaning, rice hulling, rice milling, sorting, finished product finishing and the like. The rice in-process that the rice process rice milling procedure obtained, the cutting process can produce the broken rice grain of part, and the broken rice grain of coming the filtration through the mesh screen among the prior art usually, the mesh screen slope sets up, and untreated rice rolls down from the inclined plane, and the broken rice grain of rice filters from the mesh screen down, but still has the broken rice grain of rice not filtered, and the selected rice condition of mixing together of screening.

Disclosure of Invention

In view of the above shortcomings in the prior art, the present invention is directed to a rice screening apparatus, which is directed to solve all or one of the problems of the related art.

In order to solve the technical problems, the invention adopts the technical scheme that:

the utility model provides a rice sieving mechanism, is including placing at the inside screen cloth of sieving mechanism casing, passing the actuating lever and the drum of screen cloth, the actuating lever sets up the drum inside with drum threaded connection, the drum rotates with the casing inner bottom surface to be connected, the both ends of actuating lever are equipped with the magnetic drive portion that makes actuating lever up-and-down motion, the external coupling of drum has the flabellum.

Preferably, the magnetic force driving part comprises a third magnet and a fourth magnet fixed at two ends of the driving rod, a first rotating disk positioned at the upper end of the driving rod and a second rotating disk positioned at the lower end of the driving rod, the first magnet and the second magnet are fixed at two opposite sides of the first rotating disk, the fifth magnet and the sixth magnet are fixed at two opposite sides of the second rotating disk, and the first rotating disk and the second rotating disk rotate synchronously to generate a force which is downward or upward simultaneously on the driving rod.

Preferably, a first spring is arranged between the inner bottom surface of the shell and the fourth magnet, and the upper end of the first spring is in contact with the fourth magnet.

Preferably, the fan surface of the fan blade is provided with a plurality of through holes.

Preferably, the screen comprises a screen inner ring, a screen outer ring and a screen surface, the screen surface is circular ring-shaped,

the inner ring and the outer ring are respectively clamped with the screen inner ring and the screen outer ring, and the cylinder penetrates through the screen inner ring.

Preferably, an annular supporting seat is fixedly arranged on the inner wall surface of the shell, a central supporting seat is vertically arranged on the inner bottom surface of the shell, and the screen is placed on the annular supporting seat and the central supporting seat.

Preferably, the central supporting seat is provided with a communicating pipe, a first piston and a second piston are plugged at two ends of the screen, the first piston corresponds to one side of the screen, the second piston corresponds to one side of the cylinder, a sealing space is formed between the first piston and the second piston, and a ball fixed by a compression spring is fixed in the position, corresponding to the second piston, in the side wall of the cylinder.

Preferably, compressed air or an oily substance is injected into the sealed space of the communicating pipe.

Preferably, the position of the first piston corresponds to a screen mesh inner ring of the screen mesh, and a top block is embedded in the screen mesh inner ring.

The invention has the beneficial effects that 1, the problem of poor filtering effect caused by the first factor in the prior art, namely the problem of the inclined arrangement angle of the screen is solved, and the invention adopts the horizontally arranged screen, so that the unscreened rice is not subjected to downward gravity vertical to the screen surface along the initial speed parallel to the screen surface and is stirred by the fan blades, thereby avoiding the problem of poor filtering effect caused by accumulation;

2. the drum rotates, and through sealed antithetical couplet through-hole with the effort conduction in the twinkling of an eye to the screen cloth, produce the striking in the twinkling of an eye, solved the problem that the screen cloth was blockked up to the granule that garrulous is little.

Drawings

The contents of the drawings and the reference numerals in the drawings are briefly described as follows:

FIG. 1 is a schematic structural diagram of a screening apparatus according to an embodiment of the present invention.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a schematic structural view of a cylinder according to an embodiment of the present invention.

Fig. 4 is a diagram of a state of motion for an embodiment of the present invention.

The device comprises 1-ball, 2-first magnet, 3-first rotating disc, 4-second magnet, 5-shell, 6-screen, 7-feeding port, 8-fan blade, 9-annular supporting seat, 10-driving rod, 11-third magnet, 12-cylinder, 13-central supporting seat, 14-fourth magnet, 15-first spring, 16-fifth magnet, 17-second rotating disc, 18-sixth magnet, 19-top block, 20-first piston, 21-second piston, 22-communicating pipe, 23-screen inner ring and 24-screen outer ring.

Detailed Description

The following embodiments are provided to describe the embodiments of the present invention, and to further describe the detailed description of the embodiments of the present invention, such as the shapes, configurations, mutual positions and connection relationships of the components, the functions and operation principles of the components, the manufacturing processes and operation methods, etc., so as to help those skilled in the art to more fully, accurately and deeply understand the inventive concept and technical solutions of the present invention.

The main idea of the invention is as follows: the reason that the sorting effect of the filter screen in the prior art is poor is that the mesh screen is obliquely arranged, rice grains have a downward movement speed along an inclined plane, and if the movement speed is too high, the sorting effect of the filter screen is inevitably influenced; if the inclination angle of the screen is small, rice grains are inevitably accumulated, and the filtering effect is also reduced; on the other hand, after the screen cloth filters for a period, broken rice grains are clamped in the screen cloth, the available screen cloth area is reduced, and the filtering effect is influenced.

The screening device provided by the invention comprises a ball 1, a first magnet 2, a first rotating disk 3, a second magnet 4, an outer wall 5, a screen 6, a feeding port 7, fan blades 8, an annular supporting seat 9, a driving rod 10, a third magnet 11, a cylinder 12, a central supporting seat 13, a fourth magnet 14, a first spring 15, a fifth magnet 16, a second rotating disk 17, a sixth magnet 18, a top block 19, a first piston 20, a second piston 21, a communicating pipe 22, a screen inner ring 23 and a screen outer ring 24.

As shown in fig. 1, a structural schematic diagram of the rice screening device, the screening device includes an outer wall 5, the top of the outer wall 5 is a circular vault, a feeding port 7 is provided on the vault, an annular supporting seat 9 is fixed on the inner wall of the outer wall 5, a central supporting seat 13 is fixed at the middle part of the inner bottom of the outer wall 5, the screen 6 is in a circular ring shape, a screen inner ring 23 and a screen outer ring 24 are respectively connected inside and outside the screen 6, the screen 6 is placed on the annular supporting seat 9 and the central supporting seat 13, and the screen 6 is in non-fixed connection with the annular supporting seat 9 and the central supporting seat 13. The inside central point of outer wall 5 puts and is provided with actuating lever 10, and the top of actuating lever 10 is with the mode fixedly connected with third magnet 11 of chucking, and the lower extreme of actuating lever 10 is connected with fourth magnet 14 with the chucking mode, and the lower extreme of fourth magnet 14 is equipped with

first spring

15, and 15 one end of first spring are connected to the interior bottom surface of outer wall 5, and the other end contacts with fourth magnet 14, does not connect with fourth magnet 14. The periphery of the driving rod 10 is annularly wrapped with a cylinder 12, the cylinder 12 is a rod-shaped structure with a hollow interior, the driving rod 10 and the cylinder 12 are provided with mutually matched threads, the lower end of the cylinder 12 is connected with the lower bottom surface of the outer wall 5 through a bearing or a slip ring, the other end of the cylinder passes through the screen inner ring 23 and extends to the upper part of the screen 6, and the periphery of the cylinder 12 above the screen 6 is coupled with fan blades 8.

The cylinder 12 is fixedly connected with the fan blade 8, and the fan surface of the fan blade 8 is provided with a plurality of through holes.

The upper portion and the lower portion of the driving rod 10 are respectively provided with a first rotating disk 3 and a second rotating disk 17, the first rotating disk 3 and the second rotating disk 17 keep synchronous rotation, two opposite sides of the first rotating disk 3 are respectively fixed with a first magnet 2 and a second magnet 4, two opposite sides of the second rotating disk 17 are respectively fixed with a fifth magnet 16 and a sixth magnet 18, different magnetic poles of the first magnet 2 and the second magnet 4 face the circle center position, different magnetic poles of the fifth magnet 16 and the sixth magnet 18 face the circle center position, and the upward sides of the third magnet 11 and the fourth magnet 14 are different magnetic poles. When the first rotating disk 3 and the second rotating disk 17 rotate synchronously, and the magnets on the first rotating disk 3 generate attraction force on the third magnets 11, the magnets on the second rotating disk 17 generate repulsion force on the fourth magnets 14, and the driving rod 10 generates driving force moving upwards under the action of the first spring 15. When the magnets on the first rotating disk 3 generate repulsive force to the third magnet 11, the magnets on the second rotating disk 17 generate attractive force to the fourth magnet 14, so that the driving rod 10 generates driving force for downward movement.

The central supporting seat 13 is symmetrically provided with a communicating pipe 22, one end of the communicating pipe 22 corresponds to the screen mesh inner ring 23, the other end corresponds to the cylinder 12, the first piston 20 and the second piston 21 respectively block two ends of the communicating pipe 22, the first piston 20 and the second piston 21 enable the communicating pipe 22 to form a sealed space, and oil-full substances or compressed air can be injected into the communicating pipe 22.

As shown in fig. 3, balls 1 are provided on both sides of the cylinder 12 corresponding to the first piston 20, and a compression spring for moving the balls 1 outward is connected to the inner side of the balls 1.

When the rice crusher is used, the first rotating disk 3 and the second rotating disk 17 are started to keep synchronous motion, when the driving rod 10 moves downwards by the magnets on the first rotating disk 3 and the second rotating disk 17, the cylinder 12 rotates by the aid of threads coupled with the driving rod 10 and the cylinder 12, the cylinder 12 drives the fan blades 8 to rotate, rice on the screen 6 is stirred, and broken rice grains are filtered from the screen 6 to the inner bottom surface of the outer wall 5; similarly, when the first rotating disk 3 and the second rotating disk 17 make the driving rod 10 move upwards, the fan blades 8 rotate reversely; then, the unscreened rice grains are poured onto the screen 6 from the feeding port 7, and the thickness of the rice grains paved on the screen 6 is not more than 1cm, wherein the amount of the rice which is poured is not too much at one time; in the pouring process, the fan blades 8 can spread the rice on the screen 6 and stir the rice.

When the cylinder 12 rotates, the ball 1 inside the side wall of the cylinder compresses the spring due to the reverse acting force generated by the central supporting seat 13, and the ball 1 is positioned inside the side wall of the cylinder 12; when the sieve moves to the position of the second piston 21, the second piston 21 is pushed to move inwards, the second piston 21 pushes the first piston 20 to move upwards through the closed air or oily substances in the communicating pipe 22, and the first piston 20 acts on the top block 19 to enable the sieve 6 integrally connected with the top block to generate an upward force; when the ball 1 rotates past the position of the second piston 21, the second piston 21 returns to the initial position under the action of the screen 6 on the first piston 20; because what ball 1 produced screen cloth 6 is an instant effort, make screen cloth 6 receive the strike in the twinkling of an eye, make the broken rice grain of card in screen cloth 6 mesh drop, effectively utilize the usable floor area of screen cloth.

The top block 19 and the first piston 20 are positions where acting force often occurs, abrasion is easy to generate, and the top block 19 is connected with the inner ring 23 of the screen in a clamping mode, can be detached and is convenient to replace.

The invention has been described in an illustrative manner, and it is to be understood that the invention is not limited to the precise form disclosed, and that various insubstantial modifications of the inventive concepts and solutions, or their direct application to other applications without such modifications, are intended to be covered by the scope of the invention. The protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The rice screening device is characterized by comprising a screen (6) placed in a screening device shell (5), a driving rod (10) penetrating through the screen (6) and a cylinder (12), wherein the driving rod (10) is arranged in the cylinder (12) and is in threaded connection with the cylinder (12), the cylinder (12) is in rotary connection with the inner bottom surface of the shell (5), magnetic driving parts enabling the driving rod (10) to move up and down are arranged at two ends of the driving rod (10), and fan blades (8) are coupled to the outside of the cylinder (12);

the magnetic force driving part comprises a third magnet (11) and a fourth magnet (14) which are fixed at two ends of a driving rod (10), a first rotating disk (3) which is positioned at the upper end of the driving rod (10) and a second rotating disk (17) which is positioned at the lower end of the driving rod (10), the first rotating disk (3) and the second rotating disk (17) keep synchronous rotation, a first magnet (2) and a second magnet (4) are fixed at two opposite sides of the first rotating disk (3), a fifth magnet (16) and a sixth magnet (18) are fixed at two opposite sides of the second rotating disk (17), different magnetic poles of the first magnet (2) and the second magnet (4) face to the circle center position, different magnetic poles of the fifth magnet (16) and the sixth magnet (18) face to the circle center position, different magnetic poles of the third magnet (11) and the fourth magnet (14) face to the upper side, and a first spring (15) is arranged between the inner bottom surface of the shell (5) and the fourth magnet (14), the upper end of the first spring (15) contacts with the fourth magnet (14), when the first rotating disk (3) and the second rotating disk (17) rotate synchronously, and magnets on the first rotating disk (3) generate attraction to the third magnet (11), magnets on the second rotating disk (17) generate repulsion to the fourth magnet (14), under the action of the first spring (15), the driving rod (10) generates driving force moving upwards, and when magnets on the first rotating disk (3) generate repulsion to the third magnet (11), magnets on the second rotating disk (17) generate attraction to the fourth magnet (14), so that the driving rod (10) generates downward driving force.

2. The rice screening device according to claim 1, wherein the fan blades (8) are provided with a plurality of through holes on the fan surface.

3. The rice screening device according to claim 1, wherein the screen (6) comprises a screen inner ring (23), a screen outer ring (24) and a screen surface, the screen surface is circular, the screen inner ring (23) and the screen outer ring (24) are respectively clamped on the inner ring and the outer ring, and the cylinder (12) penetrates through the screen inner ring (23).

4. The rice screening device according to claim 1, wherein an annular support seat (9) is fixedly arranged on the inner wall surface of the shell (5), a central support seat (13) is vertically arranged on the inner bottom surface of the shell (5), and the screen (6) is placed on the annular support seat (9) and the central support seat (13).

5. The rice screening device according to claim 4, wherein the central supporting seat (13) is provided with a communicating pipe (22), the two ends of the screen (6) are provided with a first piston (20) and a second piston (21), the first piston (20) corresponds to one side of the screen (6), the second piston (21) corresponds to one side of the cylinder (12), a sealed space is formed between the first piston (20) and the second piston (21), and a ball fixed by a compression spring is fixed in the side wall of the cylinder (12) at a position corresponding to the second piston (21).

6. The rice screening apparatus as claimed in claim 5, wherein the closed space of the communicating tube (22) is injected with compressed air or oily substances.

7. The rice screening apparatus according to claim 5, wherein the first piston (20) is positioned to correspond to a screen inner ring (23) of the screen (6), and the screen inner ring (23) is embedded with a top block (19).