CN221657153U - A rice processing grading and screening device with easy replacement of screen mesh - Google Patents

Abstract

A rice processing grading and screening device which is convenient for replacing screen meshes, the utility model relates to the technical field of rice screening; a resisting door panel is embedded in an opening on the front side wall of a box body; sliding bars are slidably arranged in the embedded grooves; a fixing mechanism is arranged in a plurality of sliding bars, and the fixing mechanism is connected to a screen frame; a sliding block is slidably arranged in sliding grooves on the left and right inner walls of the box body, and the sliding bars are respectively fixed on two sliding blocks which are symmetrical in front and back; a vibration spring is fixed on the lower side wall of the sliding block; two ends of a driving shaft are respectively screwed in the box body through bearings, and the ends of the driving shaft located in the two side walls of the box body are fixed with driving rods; the output shaft of the driving motor is fixedly connected to one end of the driving shaft; a connecting plate is embedded in the two side walls of the box body, and the front and rear sides of the inner wall of the connecting plate are fixed on two sliding blocks which are symmetrical in front and back; a collecting box is arranged on the lower side of the inner part of the box body; grading and screening can be carried out, and at the same time, the screen frame can be easily removed to avoid the situation that the screen frame is blocked and cannot be screened.

Description

A rice processing grading and screening device with easy replacement of screen mesh

Technical Field

The utility model relates to the technical field of rice screening, in particular to a rice processing grading and screening device which is convenient for replacing a screen.

Background Art

There will be some differences in the grain size of rice processed after the rice is harvested, and broken rice will be produced in the process of rice processing. The produced rice needs to be screened and removed before being packaged and sold. In addition, in order to ensure the uniformity of the grain size of the whole bag of rice, that is, to ensure the quality and appearance, and to facilitate the different pricing of rice with different grain sizes, in addition to screening and removing the broken rice, it is also necessary to grade and screen the rice with different grain sizes. After a period of screening, the screen is prone to clogging, but the existing grading and screening device is not convenient for replacing the screen, which affects the screening efficiency and effect.

Utility Model Content

The purpose of the utility model is to provide a rice processing grading and screening device with reasonable design, convenient use and easy replacement of the screen, in view of the defects and shortcomings of the prior art, which can effectively solve the defects of the above-mentioned prior art.

To achieve the above purpose, the technical solution adopted by the utility model is: it comprises a box body, supporting feet and a feed pipe, the four corners of the outer bottom wall of the box body are fixed with supporting feet, and the top wall of the box body is inserted and fixed with a feed pipe; it also comprises:

The abutment door panel is embedded in the upper opening of the front side wall of the box body, the lower side of the front side wall of the abutment door panel is screwed to the lower side wall of the box body through a hinge, and the upper side of the abutment door panel is connected to the top wall of the box body through a lock;

The screen frame is a plurality of screen frames, and the screen frames are arranged in the box body at equal distances from top to bottom. The outer walls on the left and right sides of the screen frame are provided with embedded grooves, and the embedded grooves are slidably provided with slide bars, which are against the two inner walls of the box body;

The fixing mechanism is a plurality of fixing mechanisms, and each of the fixing mechanisms is arranged in a corresponding manner in a plurality of slide bars, the fixing mechanism is connected to the screen frame, and the fixing mechanism is arranged in cooperation with the abutment door panel;

Sliding blocks, there are four of them, and they are symmetrically slidably arranged in sliding grooves on the left and right inner walls of the box body, and the sliding strips are respectively fixed on two adjacent symmetrical sliding blocks;

Vibration springs, there are four vibration springs, and they are fixed one by one on the lower side wall of the sliding block, and the lower ends of the vibration springs are fixed on the inner bottom wall of the sliding groove;

A driving shaft, wherein the driving shaft is arranged at the lower side of the box body, and both ends of the driving shaft are respectively screwed into the box body through bearings, and driving rods are fixed to the ends of the driving shaft located in the two side walls of the box body;

A driving motor, wherein the driving motor is fixed to an outer wall of one side of the box body, and an output shaft of the driving motor is fixedly connected to one end of the driving shaft;

Connecting plates, there are two connecting plates, and they are embedded in the two side walls of the box body, the front and rear sides of the upper side walls of the connecting plates are respectively fixed on two sliding blocks that are symmetrical in front and back, and the connecting plates are matched with the push rods;

A collecting box, wherein the collecting box is arranged at the lower side of the inner part of the box body, and the collecting box is located at the lower side of the lowermost screen frame;

Through the above technical scheme, rice is poured into the box through the feed pipe, and the rice falls into the uppermost screen frame, and then the pushing motor is started, the pushing motor drives the pushing shaft to rotate, and the pushing shaft drives the pushing rod to rotate. When the pushing rod conflicts with the connecting plate, the connecting plate is pushed to move upward, and the connecting plate drives the sliding blocks on both sides to move upward, and the sliding blocks drive the slide bar to move upward, thereby driving the screen frame to move upward. When the pushing rod is in a horizontal direction, the connecting plate is released, and the connecting plate drives the elastic force of the vibration spring to move downward quickly, thereby driving the screen frame to move downward. The rice is screened during the up and down movement of the screen frame. When the screen frame needs to be removed, the contact door panel is opened, and the contact door panel releases the fixing mechanism at this time, so that the fixing mechanism is separated from the screen frame, so that the screen frame can be directly moved outward.

As a further improvement of the present invention, the fixing mechanism comprises:

The resistance rod is movably inserted in the slide bar, the front end of the resistance rod is set to resist the door plate, and the rear end of the resistance rod is sleeved with a return spring, and the two ends of the return spring are respectively fixedly connected to the resistance rod and the inner wall of the slide bar;

Limiting wedges, wherein there are several limiting wedges, and two of them are symmetrically arranged in the slide bar from front to back and equidistantly arranged, and the outer sides of the limiting wedges are inserted into the slots on the upper and lower inner walls of the embedding groove;

Pushing inclined wedges, there are several pushing inclined wedges, which are sleeved and fixed on the abutment rod from front to back, and the inclined surfaces on the upper and lower sides of the pushing inclined wedges respectively abut on the upper and lower limit inclined wedges adjacent thereto;

Connecting springs, there are several connecting springs, and two of them are fixed symmetrically on both sides of one side wall of the limiting wedge, and the other ends of the connecting springs are fixed on the inner wall of the slide bar through the support plate;

Through the above technical solution, when the resistance door panel is opened, the return spring drives the resistance rod to move forward, and the resistance rod drives the pushing wedge to move forward, thereby separating the pushing wedge from the limiting wedge. At this time, the limiting wedge shrinks into the slide bar under the elastic force of the connecting spring, thereby loosening the screen frame. After the screen frame is installed on the slide bar, the resistance door panel is closed until it contacts the resistance rod, so that the resistance rod moves toward the inside of the slide bar, driving the pushing wedge to contact the limiting wedge, so that the limiting wedge is inserted into the slot on the screen frame, thereby positioning the screen frame.

As a further improvement of the utility model, guide rods are fixed in the sliding grooves on the two inner walls of the box body, and the guide rods penetrate and are inserted into the adjacent vibration springs and sliding blocks;

Through the above technical solution, the vibration spring can be guided by the guide rod to prevent the vibration spring from bending and being unable to reset.

As a further improvement of the utility model, an observation window is provided on the interference door panel, so as to facilitate observation of the screening result inside the box.

As a further improvement of the utility model, a guide frame is fixed on the top wall of the screen frame, the outer peripheral wall of the guide frame is arranged in the same plane as the outer peripheral wall of the screen frame, and the inner end of the guide frame is arranged to be inclined downward;

The above technical solution can facilitate the guidance of the sieved rice to prevent the rice from being retained on the top wall of the sieve frame.

Compared with the prior art, the utility model has the following beneficial effects: the rice processing grading and screening device with easy replacement of the screen described in the utility model can perform grading and screening, and at the same time, the screen frame can be easily removed to avoid the situation where the screen frame is blocked and cannot be screened. The utility model has the advantages of reasonable setting and low production cost.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of the utility model.

FIG. 2 is an exploded view of the present invention.

FIG. 3 is an exploded view of the slide bar, the fixing mechanism and the slide block in the present invention.

FIG. 4 is an enlarged view of portion A in FIG. 3 .

Description of reference numerals:

Box body 1, supporting feet 2, feed pipe 3, resistance door panel 4, screen frame 5, embedded groove 5-1, slide bar 6, fixing mechanism 7, resistance rod 7-1, reset spring 7-2, limiting wedge 7-3, pushing wedge 7-4, connecting spring 7-5, sliding block 8, vibration spring 9, pushing shaft 10, pushing rod 11, pushing motor 12, connecting plate 13, collecting box 14, guide rod 15, observation window 16, guide frame 17.

DETAILED DESCRIPTION

The utility model is further described below in conjunction with the accompanying drawings.

Embodiment 1:

As shown in Figures 1 to 4, this embodiment includes a box body 1, support legs 2 and a feed pipe 3. The four corners of the outer bottom wall of the box body 1 are welded and fixed with support legs 2, and the top wall of the box body 1 is inserted and welded with a feed pipe 3; it also includes:

The resisting door panel 4 is embedded in the opening on the front side wall of the box body 1. The lower side of the front side wall of the resisting door panel 4 is screwed to the lower side wall of the box body 1 through a hinge, and the upper side of the resisting door panel 4 is connected to the top wall of the box body 1 through a lock. The resisting door panel 4 is provided with an observation window 16, which can be used to observe the screening results inside the box body 1.

The sieve frame 5 is a plurality of sieve frames 5, and they are equidistantly arranged in the box body 1 from top to bottom. The outer walls on the left and right sides of the sieve frame 5 are provided with embedding grooves 5-1, and the embedding grooves 5-1 are slidably provided with slide bars 6, and the slide bars 6 abut against the two inner walls of the box body 1; the top wall of the sieve frame 5 is welded and fixed with a guide frame 17, and the outer peripheral wall of the guide frame 17 is arranged in the same plane as the outer peripheral wall of the sieve frame 5, and the inner end of the guide frame 17 is arranged to be tilted downward, which can facilitate the guidance of the sieved rice and prevent the rice from being retained on the top wall of the sieve frame 5;

The fixing mechanism 7 is a plurality of fixing mechanisms 7, and each of the fixing mechanisms 7 is arranged in a one-to-one correspondence in a plurality of slide bars 6, the fixing mechanism 7 is connected to the screen frame 5, and the fixing mechanism 7 is arranged in cooperation with the abutment door panel 4;

Sliding blocks 8, there are four sliding blocks 8, and they are symmetrically slidably arranged in sliding grooves on the left and right inner walls of the box body 1, and the sliding bars 6 are respectively welded and fixed on two adjacent sliding blocks 8 that are symmetrically arranged in the front and back directions;

Vibration springs 9, there are four vibration springs 9, and they are welded and fixed on the lower side wall of the sliding block 8 one by one, and the lower end of the vibration spring 9 is fixed on the inner bottom wall of the sliding groove; the sliding grooves on the two inner walls of the box body 1 are welded and fixed with guide rods 15, and the guide rods 15 penetrate and are inserted in the adjacent vibration springs 9 and sliding blocks 8, and the vibration springs 9 can be guided by the guide rods 15 to prevent the vibration springs 9 from bending and being unable to reset;

A driving shaft 10, wherein the driving shaft 10 is arranged at the lower side of the box body 1, and both ends of the driving shaft 10 are respectively screwed into the box body 1 through bearings, and the ends of the driving shaft 10 located in the two side walls of the box body 1 are both welded and fixed with driving rods 11;

A driving motor 12, wherein the driving motor 12 is fixed to the outer wall of the right side of the box body 1 by bolts, and the output shaft of the driving motor 12 is fixedly connected to the right end of the driving shaft 10;

The connecting plates 13 are two and are embedded in the two side walls of the box body 1. The front and rear sides of the upper side walls of the connecting plates 13 are respectively welded and fixed on the two front and rear symmetrical sliding blocks 8. The connecting plates 13 are matched with the push rods 11;

The collecting box 14 is arranged at the lower side of the box body 1 , and the collecting box 14 is located at the lower side of the lowermost screen frame 5 .

Embodiment 2:

Referring to FIGS. 2-4 , based on the first embodiment, the fixing mechanism 7 comprises:

The resisting rod 7-1 is movably inserted in the slide bar 6, the front end of the resisting rod 7-1 is disposed in contact with the resisting door panel 4, and the rear end of the resisting rod 7-1 is sleeved with a return spring 7-2, and the two ends of the return spring 7-2 are respectively welded and fixed to the resisting rod 7-1 and the inner wall of the slide bar 6;

Limiting inclined wedges 7-3, wherein there are several limiting inclined wedges 7-3, and two of them are symmetrical up and down and equidistantly arranged from front to back in the slide bar 6, and the outer sides of the limiting inclined wedges 7-3 are inserted into the slots on the upper and lower inner walls of the embedding groove 5-1;

Pushing inclined wedges 7-4, there are several pushing inclined wedges 7-4, and they are sleeved from front to back and welded and fixed on the abutment rod 7-1, and the inclined surfaces on the upper and lower sides of the pushing inclined wedges 7-4 respectively abut on the upper and lower limit inclined wedges 7-3 adjacent thereto;

The connecting spring 7-5 is a plurality of connecting springs 7-5, and two of them are symmetrically welded and fixed on both sides of a side wall of the limiting wedge 7-3, and the other ends of the connecting springs 7-5 are respectively fixed on the inner wall of the slide bar 6 through support plates.

When using the utility model, rice is poured into the box body 1 through the feeding pipe 3, and the rice falls into the uppermost screen frame 5, and then the driving motor 12 is started, and the driving motor 12 drives the driving shaft 10 to rotate, and the driving shaft 10 drives the driving rod 11 to rotate. When the driving rod 11 conflicts with the connecting plate 13, the connecting plate 13 is pushed to move upward, and the connecting plate 13 drives the sliding blocks 8 on both sides to move upward, and the sliding blocks 8 drive the slide bar 6 to move upward, thereby driving the screen frame 5 to move upward. When the pushing rod 11 is in a horizontal direction, the connecting plate 13 is released, and the connecting plate 13 drives the elastic force of the vibration spring 9 to move downward quickly, thereby driving the screen frame 5 to move downward. In the process of the screen frame 5 moving up and down, the rice is pressed against the connecting plate 13. When screening is carried out and the screen frame 5 needs to be removed, the contact door panel 4 is opened. At this time, the return spring 7-2 drives the contact rod 7-1 to move forward, and the contact rod 7-1 drives the pushing wedge 7-4 to move forward, thereby separating the pushing wedge 7-4 from the limiting wedge 7-3. At this time, the limiting wedge 7-3 shrinks into the slide bar 6 under the elastic force of the connecting spring 7-5, thereby loosening the screen frame 5. After the screen frame 5 is installed on the slide bar 6, the contact door panel 4 is closed until it contacts the contact rod 7-1, so that the contact rod 7-1 moves toward the inside of the slide bar 6, driving the pushing wedge 7-4 to contact the limiting wedge 7-3, so that the limiting wedge 7-3 is inserted into the slot on the screen frame 5, thereby positioning the screen frame 5.

Compared with the prior art, the beneficial effects of this specific implementation are as follows:

1. The rice can be graded and screened by several connected screen frames 5, and the rice can be screened according to the size of the rice. The lower side of the screen frame 5 is pushed by the vibration spring 9 and the push rod 11, so that the screen frame 5 can achieve the effect of vibration, thereby improving the screening effect;

2. The screen frame 5 is sleeved on the slide bar 6 on the sliding block 8 and is limited by the fixing mechanism 7, so that the screen frame 5 can be easily disassembled and assembled to avoid the situation where the screen frame 5 is blocked and cannot be screened.

The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims (5)

1. A rice processing and grading screening device that is easy to replace a screen, comprising a box body (1), support legs (2) and a feed pipe (3), wherein the four corners of the outer bottom wall of the box body (1) are fixed with support legs (2), and the feed pipe (3) is inserted and fixed on the top wall of the box body (1); it is characterized in that it also comprises: A resisting door panel (4), wherein the resisting door panel (4) is embedded in an opening on the front side wall of the box body (1), the lower side of the front side wall of the resisting door panel (4) is screwed to the lower side wall of the box body (1) via a hinge, and the upper side of the resisting door panel (4) is connected to the top wall of the box body (1) via a lock; A screen frame (5), wherein the screen frames (5) are in plurality and are arranged in equal intervals from top to bottom in the box body (1), and an embedding groove (5-1) is provided on the outer walls on the left and right sides of the screen frame (5), and a slide bar (6) is slidably arranged in the embedding groove (5-1), and the slide bar (6) abuts against the two inner walls of the box body (1); A fixing mechanism (7), wherein the fixing mechanism (7) is in plurality and is disposed in a one-to-one correspondence in the plurality of slide bars (6), the fixing mechanism (7) is connected to the screen frame (5), and the fixing mechanism (7) is disposed in coordination with the abutment door panel (4); Sliding blocks (8), wherein there are four sliding blocks (8) which are symmetrically slidably arranged in sliding grooves on the left and right inner walls of the box body (1), and the sliding strips (6) are respectively fixed on two adjacent symmetrical sliding blocks (8); Vibration springs (9), wherein there are four vibration springs (9), which are fixed one by one on the lower side wall of the sliding block (8), and the lower ends of the vibration springs (9) are fixed on the inner bottom wall of the sliding groove; A driving shaft (10), wherein the driving shaft (10) is arranged at the lower side of the box body (1), and both ends of the driving shaft (10) are respectively screwed into the box body (1) through bearings, and driving rods (11) are fixed to the ends of the driving shaft (10) located in the two side walls of the box body (1); A propulsion motor (12), wherein the propulsion motor (12) is fixed to an outer wall of one side of the box body (1), and an output shaft of the propulsion motor (12) is fixedly connected to one end of the propulsion shaft (10); A connecting plate (13), wherein the connecting plates (13) are two and are embedded in the two side walls of the box body (1), the front and rear sides of the upper side walls of the connecting plate (13) are respectively fixed to two sliding blocks (8) that are symmetrical in front and back, and the connecting plate (13) is arranged in coordination with the push rod (11); A collecting box (14), wherein the collecting box (14) is arranged at the lower side of the interior of the box body (1), and the collecting box (14) is located at the lower side of the lowermost screen frame (5). 2. A rice processing and grading screening device with easy replacement of screen mesh according to claim 1, characterized in that: the fixing mechanism (7) comprises: A resistance rod (7-1), wherein the resistance rod (7-1) is movably inserted in the slide bar (6), the front end of the resistance rod (7-1) is arranged to resist the door plate (4), and the rear end of the resistance rod (7-1) is sleeved with a return spring (7-2), and the two ends of the return spring (7-2) are respectively fixedly connected to the resistance rod (7-1) and the inner wall of the slide bar (6); Limiting inclined wedges (7-3), wherein the limiting inclined wedges (7-3) are in plurality and are arranged in pairs symmetrically up and down and equidistantly from front to back in the slide bar (6), and the outer sides of the limiting inclined wedges (7-3) are inserted into slots on the upper and lower inner walls of the embedding groove (5-1); Pushing inclined wedges (7-4), wherein there are a plurality of pushing inclined wedges (7-4), which are sleeved from front to back and fixed on the abutment rod (7-1), and the inclined surfaces on the upper and lower sides of the pushing inclined wedges (7-4) respectively abut against the upper and lower limiting inclined wedges (7-3) adjacent thereto; The connecting springs (7-5) are multiple in number and are symmetrically fixed in pairs on both sides of a side wall of the limiting wedge (7-3). The other ends of the connecting springs (7-5) are respectively fixed on the inner wall of the slide bar (6) through support plates. 3. A rice processing and grading screening device that is easy to replace the screen according to claim 1, characterized in that: guide rods (15) are fixed in the sliding grooves on the two inner walls of the box body (1), and the guide rods (15) are inserted through the adjacent vibration springs (9) and sliding blocks (8). 4. A rice processing, grading and screening device with easy replacement of screen mesh according to claim 1, characterized in that an observation window (16) is provided on the abutting door panel (4). 5. A rice processing, grading and screening device that is easy to replace the screen according to claim 1, characterized in that: a guide frame (17) is fixed on the top wall of the screen frame (5), the outer peripheral wall of the guide frame (17) is arranged in the same plane as the outer peripheral wall of the screen frame (5), and the inner end of the guide frame (17) is arranged to be inclined downward.