CN220635281U - Screening plant is used in rice processing - Google Patents

Abstract

The utility model discloses a screening device for rice processing, which comprises a screening box, wherein a feeding frame is arranged at the top of the screening box, a first discharge hole is arranged at the bottom of the screening box, a fan is arranged at the left side of the screening box, a second discharge hole is arranged at the right side of the screening box, a mounting box is fixedly connected to the top of an inner cavity of the screening box, and three movable frames are driven to vibrate up and down through cam rotation, so that falling rice contacts with baffle plates in the movable frames and collides with the baffle plates, firstly, the stay time of the rice in the air can be prolonged, the fan has enough time to screen rice hulls in the rice, the phenomenon that the screening box is required to be vertically elongated is avoided, the volume of equipment is reduced, secondly, along with the collision of rice to two sides of inclined planes of the baffle plates, and then a plurality of baffle plates collide with each other, the rice is dispersed, the collision force is relatively larger than that of free falling rice, the dispersion effect is better, and the rice screening efficiency is further improved.

Description

Screening plant is used in rice processing

Technical Field

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

Background

Rice need adopt screening equipment after shelling processing, rice husk in the rice is got rid of, like patent No. 202222250739.0, patent name is a rice screening plant, including screening case, blast apparatus, material feeding unit, feeding frame, first discharge gate and second discharge gate etc. blow to the rice that gets into screening case through the fan, blow off the separation with the rice husk, and, in order that the rice can blow off and rice husk separation as far as, the first material district that the rice falls is the rectangle of vertical extension, secondly, the rice that gets into the feeding frame, bump with the grid and break up, make the rice dispersion that drops to first material district.

However, the above-mentioned method of screening rice hulls still has drawbacks: firstly, the area where rice falls needs to be vertically elongated, so that the volume of equipment is large, secondly, the rice is in a free falling state and collides with a grid, the falling distance is short, the collision force is small, and the dispersion effect is poor.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the screening device for rice processing, which is characterized in that the falling rice is contacted with the baffle plates in the movable frames and collides in a mode of driving the three movable frames to vibrate up and down through the rotation of the cam, firstly, the residence time of the rice in the air can be prolonged, the fan has enough time to screen out the rice hulls in the rice, the phenomenon that the screening box is required to be vertically elongated is avoided, the volume of equipment is reduced, secondly, the rice is collided to two sides along with the inclined plane of the baffle plates, and then a plurality of baffle plates collide in this way, so that the rice is dispersed, the collision force is larger than the force generated by free falling bodies, the dispersion effect is better, and the rice screening efficiency is further improved.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a screening plant for rice processing, includes the screening case, the top of screening case is provided with the feeding frame, the bottom of screening case is provided with first discharge gate, the left side of screening case is provided with the fan, the right side of screening case is provided with the second discharge gate, the top fixedly connected with install bin of screening case inner chamber, the bottom sliding connection of install bin has the movable rod, the outside fixedly connected with mounting panel of movable rod, the bottom fixedly connected with spring of mounting panel, the bottom and the install bin fixed connection of spring, the top fixedly connected with fly leaf of movable rod, the bottom fixedly connected with motor of install bin inner chamber, the output shaft cup joint the cam of motor, the left side fixedly connected with of movable rod corresponds with the movable frame of feeding frame, the movable frame has three from top to bottom equidistance arranged, the movable frames are fixedly connected with a plurality of baffle plates, the baffle plates in the three movable frames are distributed vertically in a staggered manner, gaps exist among the baffle plates, the tops of the baffle plates are inclined planes inclined to two sides, the three movable frames are driven to vibrate vertically through cam rotation, falling rice is contacted with the baffle plates in the movable frames and collide, firstly, the residence time of the rice in the air can be prolonged, a fan is enabled to have enough time, rice hulls in the rice are screened out, the phenomenon that a screening box is required to be vertically elongated is avoided, the volume of equipment is reduced, secondly, the rice is collided to two sides along with the inclined planes of the baffle plates, and then a plurality of baffle plates collide in such a manner, so that the rice is dispersed, the force generated by the collision force relative to free fall is larger, and the dispersion effect is better, further improving the rice screening efficiency.

Further, the screen box is fixedly connected with a protection net positioned at the air outlet of the fan, rice is prevented from flying to the fan through the protection net, and the phenomenon of damage to the fan is avoided.

Further, the bottom fixedly connected with guide bar of mounting box, the stopper of the outside fixedly connected with guide bar sliding connection of movable rod, slide on the guide bar through the stopper, avoid the movable rod to remove in, produce the phenomenon of rocking.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the mode of cam rotation drive three movable frame vibration from top to bottom, make the rice of whereabouts and the striker plate contact in the movable frame and produce the collision, at first, can increase the length that rice stayed in the sky, make the fan have sufficient time, with the rice husk in the rice screening out, avoided the phenomenon that need vertically elongate the sieve bin, reduced the volume of equipment, secondly, the rice bumps both sides along with the inclined plane of striker plate, and then a plurality of striker plate so collide, disperse rice, the dynamics of collision dynamics relative free fall production is bigger, dispersion effect is better, further improve rice screening efficiency.

2. Prevent through the protection network that rice from flying to fan department, avoid the phenomenon of fan damage, slide on the guide bar through the stopper, avoid the movable rod to remove in, produce the phenomenon of rocking.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a dam plate according to the present utility model;

FIG. 3 is a schematic view of a cam structure according to the present utility model;

fig. 4 is a schematic view of a partial enlarged structure at a in fig. 1 according to the present utility model.

In the figure: 1 screening box, 2 feeding frame, 3 first discharge gate, 4 fans, 5 second discharge gate, 6 install bin, 7 movable rod, 8 mounting panel, 9 spring, 10 fly leaf, 11 motor, 12 cams, 13 movable frame, 14 striker plate, 15 protection network, 16 guide bar, 17 stopper.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples:

referring to the accompanying drawings 1-4, a screening device for rice processing comprises a screening box 1, a feeding frame 2 is arranged at the top of the screening box 1, a first discharge hole 3 is arranged at the bottom of the screening box 1, a fan 4 is arranged at the left side of the screening box 1, a second discharge hole 5 is arranged at the right side of the screening box 1, a mounting box 6 is fixedly connected at the top of an inner cavity of the screening box 1, a movable rod 7 is slidably connected at the bottom of the mounting box 6, a mounting plate 8 is fixedly connected at the outer side of the movable rod 7, a spring 9 is fixedly connected at the bottom of the mounting plate 8, the bottom of the spring 9 is fixedly connected with the mounting box 6, a movable plate 10 is fixedly connected at the top of the movable rod 7, a motor 11 is fixedly connected at the bottom of the inner cavity of the mounting box 6, a cam 12 is sleeved at the output shaft of the motor 11, three movable frames 13 corresponding to the feeding frame 2 are fixedly connected at the left side of the movable rod 7 from top to bottom, the movable frames 13 are fixedly connected with striker plates 14, the striker plates 14 in the three movable frames 13 are vertically staggered, gaps exist between the striker plates 14, the tops of the striker plates 14 are inclined planes inclined to two sides, the starting motor 11 drives the cam 12 to rotate, the convex part of the cam 12 jacks up the movable frames 10 when contacting the movable frames 10 in the rotating process, at the moment, the movable frames 10 drive the movable rods 7 to move upwards, the movable rods 7 drive the mounting plates 8 to move, the mounting plates 8 drive the springs 9 to stretch upwards, and the movable rods 7 drive the three movable frames 13 to move, when the convex part of the cam 12 does not contact the movable frames 10, the springs 9 drive the movable frames 10 to quickly downwards, and then the three movable frames 13 reset downwards, so continuously, the three movable frames 13 vibrate in a reciprocating way up and down, the rice entering the screening box 1 from the feeding frame 2 is started to blow into the screening box 1 by the fan 4, the rice falls firstly to be contacted with the baffle plate 14 in the uppermost movable frame 13, the rice is bounced upwards and dispersed along with the vibrating baffle plate 14 to two sides, after the dispersed rice falls, if the rice contacts with the baffle plate 14 again, the rice is bounced again and dispersed, if the rice passes through a gap between the baffle plates 14, the rice falls into the middle movable frame 13, the rice is bounced and dispersed in the same way, until the rice is discharged from the screening box from the first discharge hole 3 after being vibrated by the lowermost movable frame 13, and the rice hulls are discharged from the second discharge hole 5, so that the rice screening work is completed.

The inside of the screening box 1 is fixedly connected with a protection net 15 positioned at the air outlet of the fan 4, and the protection net 15 prevents rice from flying to the fan 4.

The bottom of the mounting box 6 is fixedly connected with a guide rod 16, the outer side of the movable rod 7 is fixedly connected with a limiting block 17 which is slidably connected with the guide rod 16, and when the movable rod 7 moves up and down, the limiting block 17 is driven to slide along the guide rod 16, so that the movable rod 7 can only move along the direction of the guide rod 16.

Working principle: in the utility model, the motor 11 is started to drive the cam 12 to rotate, the cam 12 is started to jack up the movable plate 10 upwards when the protruding part of the cam 12 is in contact with the movable plate 10 in the rotating process, at the moment, the movable plate 10 drives the movable rod 7 to move upwards, the movable rod 7 drives the mounting plate 8 to move, the mounting plate 8 drives the spring 9 to stretch upwards, and the movable rod 7 drives the three movable frames 13 to move, when the protruding part of the cam 12 is not in contact with the movable plate 10, the spring 9 drives the movable plate 10 to rapidly downwards, and then the three movable frames 13 reset downwards, so that the three movable frames 13 continuously vibrate in a reciprocating manner, rice enters the screening box 1 from the feeding frame 2, starts the fan 4 to blow into the screening box 1, the rice falls firstly to be in contact with the baffle plate 14 in the uppermost movable frame 13, the rice is bounced upwards and dispersed along with the vibrating baffle plate 14 on two sides, if the dispersed rice falls down again, the dispersed rice is bounced again and dispersed from the baffle plate 14, if the gap between the baffle plates passes through the baffle plate 14, the rice falls into the middle movable frames 13, the rice is dispersed from the middle, the rice is separated from the middle, the rice is discharged from the screening box 3, and the rice is discharged from the screening box 5 after the rice is separated from the first vibration box, and the rice is discharged from the screening box.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (3)

1. The utility model provides a screening plant is used in rice processing, includes sieve case (1), the top of sieve case (1) is provided with feeding frame (2), the bottom of sieve case (1) is provided with first discharge gate (3), the left side of sieve case (1) is provided with fan (4), the right side of sieve case (1) is provided with second discharge gate (5), its characterized in that: the utility model discloses a screen cloth case (1) top fixedly connected with install bin (6) of inner chamber, the bottom fixedly connected with movable rod (7) of install bin (6), the outside fixedly connected with mounting panel (8) of movable rod (7), the bottom fixedly connected with spring (9) of mounting panel (8), the bottom and the install bin (6) fixedly connected with of spring (9), the top fixedly connected with fly leaf (10) of movable rod (7), the bottom fixedly connected with motor (11) of install bin (6) inner chamber, cam (12) have been cup jointed to the output shaft of motor (11), the left side fixedly connected with of movable rod (7) has movable frame (13) corresponding with feed frame (2), movable frame (13) are from last to equidistant three of arranging, fixedly connected with striker plate (14) in movable frame (13), the quantity of striker plate (14) is a plurality of three striker plate (14) distributes from top to bottom in movable frame (13), striker plate (14) has slope to the top of inclined plane (14).

2. The screening device for rice processing according to claim 1, wherein: the inside of the screening box (1) is fixedly connected with a protective net (15) positioned at the air outlet of the fan (4).

3. The screening device for rice processing according to claim 1, wherein: the bottom of the installation box (6) is fixedly connected with a guide rod (16), and the outer side of the movable rod (7) is fixedly connected with a limiting block (17) which is connected with the guide rod (16) in a sliding manner.