Improved rice processing bran screening device for rice processing

Abstract

The utility model provides an improved rice processing chaff screening device which comprises a chaff screening box body, and a plurality of fans are fixedly installed on one side of the chaff screening box body. The utility model relates to the technical field of rice processing. According to the improved rice processing chaff screening device, the transmission mechanism is arranged, in the falling process of rice, a motor is started to drive a rotating rod to rotate, the rotating rod can drive a protruding block to rotate, and when the protruding end of the protruding block makes contact with an extrusion block, the extrusion block can be driven to rotate; when the rice falls, an extrusion block, a transmission rod, a connecting block and a connecting rod are driven to move, meanwhile, a dispersing block in a feeding pipe is driven to move, when the protruding end of a protruding block does not make contact with the extrusion block, tensile force generated by a tension spring can drive the connecting block, the connecting rod and the dispersing block to reset, and the dispersing block is made to move in a reciprocating mode through sequential circulation; and when being in contact with the dispersing block, the bran can be dispersed along the bevel edge parts on two sides of the dispersing block, so that the screening efficiency of the bran screening device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to an improved rice processing bran screening device. Background Art

[0002] Rice, also known as paddy rice, is a food made from rice grains through the processes of cleaning, husking, milling, and finishing. Rice is the staple food of people in most parts of China.

[0003] The improved rice processing bran screening device provided by publication number "CN221537310U" includes a bran screening box, a feed port is provided on one side of the top of the bran screening box, a feed hopper is welded at the top of the bran screening box near the feed port, a bent discharge filter plate is welded at the top of the bran screening box near the feed port, a partition plate is welded at the middle of the bottom end of the inner wall of the bran screening box, and a rice discharge chamber is provided at the bottom of one side of the bran screening box. By using the bent discharge filter plate, the falling speed of the rice can be slowed down. During this process, the strong wind generated by the operation of the T-shaped fan will continue to blow on the rice, so that the bran husks are separated from the contact with the rice. The bran husks that are separated from the contact with the rice will be blown away by the strong wind and enter the bran husk discharge chamber, thereby achieving the bran screening of the rice. The process of bran screening of rice by this device is relatively convenient, and the subsequent bran husk cleaning process is relatively simple, which is convenient for the use of the device.

[0004] However, the above device still has the following problems during implementation:

[0005] When rice is processed, the rice husks need to be processed. In the above scheme, the strong wind generated by the fan will continuously blow the rice, so that the rice husks are separated from the rice. The rice husks that are separated from the rice will be blown away by the strong wind into the husk discharge chamber, thereby achieving rice husk screening. However, considering that rice tends to gather when it falls, the wind force generated by the fan is difficult to fully separate it, thereby reducing the screening efficiency of the rice husk screening device. Utility Model Content

[0006] The purpose of the utility model is to provide an improved rice processing rice bran screening device to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] The improved rice processing bran screening device comprises a bran screening box, a plurality of fans are fixedly installed on one side of the bran screening box, a feed pipe is fixedly connected to the top of the bran screening box, a storage box is fixedly connected to the top of the feed pipe, two dispersion blocks are arranged inside the feed pipe, and a transmission mechanism is arranged on the top of the bran screening box;

[0009] The transmission mechanism includes a motor fixedly mounted on the top of the bran screening box, the output end of the motor is fixedly connected to a rotating rod, the surface of the rotating rod is fixedly connected to a protrusion, extrusion blocks are provided on both sides of the protrusion, and the two extrusion blocks are fixedly connected to the sides away from each other with a transmission rod, one side of the transmission rod is fixedly connected to a connecting block, one side of the connecting block is fixedly connected to a connecting rod, one end of the connecting rod passes through the interior of the feed pipe and is fixedly connected to one side of the dispersion block, a tension spring is sleeved on the surface of the connecting rod, one end of the tension spring is fixedly connected to one side of the connecting block, and the other end of the tension spring is fixedly connected to one side of the feed pipe, and an opening and closing mechanism is provided on the top of the rotating rod.

[0010] Preferably, the opening and closing mechanism includes a first bevel gear fixedly connected to the surface of the rotating rod, the top of the first bevel gear is meshedly connected to the second bevel gear, the top of the second bevel gear is fixedly connected to the traction rod, the top of the traction rod is fixedly connected to the rotating block, and a partition plate is provided inside the feed pipe, one side of the partition plate passes through to the outside of the feed pipe, and the partition plate is hinged to the rotating block through a connecting rod.

[0011] Preferably, two sliding rods are fixedly connected to one side of the feed pipe, a sliding sleeve is slidably connected to the surface of the sliding rod, and the top of the sliding sleeve is fixedly connected to the bottom of the partition plate.

[0012] Preferably, the top of the bran screening box is fixedly connected to a support frame, and the bottom of the rotating block is rotatably connected to the top of the support frame through a bearing seat.

[0013] Preferably, a guide block is fixedly connected to the bottom of the extrusion block, and a guide groove for use with the guide block is provided on the top of the bran screening box.

[0014] Preferably, both sides of the dispersion block are sloped.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model is provided with a transmission mechanism. During the falling process of rice, the rotating rod can be driven to rotate by starting the motor, and the rotating rod will drive the convex block to rotate. When the raised end of the convex block contacts the extrusion block, it will drive the extrusion block, the transmission rod, the connecting block and the connecting rod to move, and at the same time drive the dispersion block inside the feed pipe to move. When the raised end of the convex block is not in contact with the extrusion block, the tension generated by the tension spring will drive the connecting block, the connecting rod and the dispersion block to reset, and the dispersion block will be moved back and forth in sequence. When the rice falls and contacts the dispersion block, it will be dispersed along the oblique sides of the dispersion block, so as to avoid the aggregation of rice, thereby improving the screening efficiency of the bran screening device.

[0017] 2. The utility model is provided with an opening and closing mechanism, which can drive the first bevel gear to rotate while the rotating rod rotates. The first bevel gear will drive the second bevel gear to rotate, and the second bevel gear will drive the traction rod and the rotating block to rotate around the bearing seat. When the rotating block rotates, it will drive the connecting rod to rotate and adjust around the hinge. At the same time, the connecting rod will drive the partition plate to move back and forth along the sliding rod and the sliding sleeve, so as to achieve the effect of intermittent opening and closing of the feed pipe. At this time, the rice will intermittently enter the bran screening box from the feed pipe, so that the wind can fully remove the bran husks, further improving the bran screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A partial enlarged view of point A in the middle;

[0020] Figure 3 It is a schematic diagram of a cross-section of the main structure of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the transmission mechanism and opening and closing mechanism of the utility model;

[0022] Figure 5 It is a three-dimensional diagram of the partial structure of the opening and closing mechanism of the utility model;

[0023] Figure 6 It is a three-dimensional diagram of the local structure of the transmission mechanism of the utility model.

[0024] In the figure: 1. bran screening box; 2. fan; 3. feed pipe; 4. storage box; 5. dispersion block; 6. motor; 7. rotating rod; 8. bump; 9. extrusion block; 10. transmission rod; 11. connecting block; 12. connecting rod; 13. tension spring; 14. first bevel gear; 15. second bevel gear; 16. traction rod; 17. rotating block; 18. partition plate; 19. connecting rod; 20. sliding rod; 21. sliding sleeve; 22. support frame; 23. bearing seat; 24. guide block; 25. guide groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 - Figure 6, this utility model provides a technical solution: Example 1:

[0027] The improved rice processing bran screening device includes a bran screening box 1, a plurality of fans 2 are fixedly installed on one side of the bran screening box 1, a feed pipe 3 is fixedly connected to the top of the bran screening box 1, a storage box 4 is fixedly connected to the top of the feed pipe 3, two dispersion blocks 5 are arranged inside the feed pipe 3, and a transmission mechanism is arranged on the top of the bran screening box 1;

[0028] The transmission mechanism includes a motor 6 fixedly mounted on the top of the bran screening box 1, the output end of the motor 6 is fixedly connected to a rotating rod 7, the surface of the rotating rod 7 is fixedly connected to a protrusion 8, extrusion blocks 9 are provided on both sides of the protrusion 8, and the two extrusion blocks 9 are fixedly connected to a transmission rod 10 on the side away from each other, one side of the transmission rod 10 is fixedly connected to a connecting block 11, one side of the connecting block 11 is fixedly connected to a connecting rod 12, one end of the connecting rod 12 passes through the interior of the feed pipe 3 and is fixedly connected to one side of the dispersion block 5, a tension spring 13 is provided on the surface of the connecting rod 12, one end of the tension spring 13 is fixedly connected to one side of the connecting block 11, and the other end of the tension spring 13 is fixedly connected to one side of the feed pipe 3, and an opening and closing mechanism is provided on the top of the rotating rod 7.

[0029] In this embodiment, it is considered that rice is easy to gather when falling, and the wind force generated by the fan 2 is difficult to fully separate it, thereby reducing the screening efficiency of the chaff screening device. Therefore, by setting a transmission mechanism, the motor 6 can be started to drive the rotating rod 7 to rotate during the falling process of the rice, and the rotating rod 7 will drive the protrusion 8 to rotate. When the protruding end of the protrusion 8 contacts the extrusion block 9, it will drive the extrusion block 9, the transmission rod 10, the connecting block 11 and the connecting rod 12 to move, and at the same time drive the dispersion block 5 inside the feeding pipe 3 to move. When the protruding end of the protrusion 8 does not contact the extrusion block 9, the tension generated by the tension spring 13 will drive the connecting block 11, the connecting rod 12 and the dispersion block 5 to reset, and circulate in sequence to make the dispersion block 5 reciprocate. When the rice falls, it contacts the dispersion block 5 and will be dispersed along the oblique sides of the dispersion block 5, thereby preventing the rice from gathering, thereby improving the screening efficiency of the chaff screening device.

[0030] The present invention solves the problem that the rice tends to aggregate when falling, and the wind force generated by the fan 2 is difficult to fully separate it, thereby reducing the screening efficiency of the bran screening device.

[0031] The bottom of the extrusion block 9 is fixedly connected with a guide block 24 , and the top of the bran screening box 1 is provided with a guide groove 25 used in conjunction with the guide block 24 .

[0032] In this embodiment, by providing the guide block 24 and the guide groove 25, when the raised end of the protrusion 8 contacts the extrusion plate, the extrusion block 9 and other structures can be restricted to move only along the track of the guide block 24 and the guide groove 25, thereby limiting the movement track.

[0033] Both sides of the dispersion block 5 are sloped.

[0034] In this embodiment, by setting the two sides of the dispersion block 5 to be sloped, when the rice falls and contacts the dispersion block 5, it will be dispersed along the oblique sides of the dispersion block 5, thereby preventing the rice from gathering during the falling process and improving the effect of sieving rice bran. Example 2:

[0035] On the basis of Example 1, the dispersion mechanism in this embodiment can disperse the rice during the falling process, thereby improving the effect of screening the rice husks. However, considering that if the rice continues to fall, the wind force generated by the fan 2 will also make it difficult to remove the rice husks inside, the opening and closing mechanism in this application includes a first bevel gear 14 fixedly connected to the surface of the rotating rod 7, the top of the first bevel gear 14 is meshedly connected to the second bevel gear 15, the top of the second bevel gear 15 is fixedly connected to the traction rod 16, the top of the traction rod 16 is fixedly connected to the rotating block 17, and a partition plate 18 is provided inside the feed pipe 3. One side of the partition plate 18 passes through the outside of the feed pipe 3, and the partition plate 18 is hinged to the rotating block 17 through a connecting rod 19.

[0036] In this embodiment, it is considered that if the rice continues to fall, the wind force generated by the fan 2 is difficult to remove the chaff husk inside it. Therefore, by providing an opening and closing mechanism, it can drive the first bevel gear 14 to rotate while the rotating rod 7 rotates. The first bevel gear 14 will drive the second bevel gear 15 to rotate, and the second bevel gear 15 will drive the traction rod 16 and the rotating block 17 to rotate around the bearing seat 23. When the rotating block 17 rotates, it will drive the connecting rod 12 to rotate and adjust around the hinge. At the same time, the connecting rod 19 will drive the partition plate 18 to reciprocate along the sliding rod 20 and the sliding sleeve 21, so as to achieve the effect of intermittent opening and closing of the feeding pipe 3. At this time, the rice will intermittently enter the chaff sieving box 1 from the feeding pipe 3, so that the wind force can fully remove the chaff husk, further improving the effect of sieving the chaff.

[0037] The problem that if the rice continues to fall, the wind force generated by the fan 2 is difficult to remove the internal husk is solved.

[0038] Two slide rods 20 are fixedly connected to one side of the feed pipe 3 . A sliding sleeve 21 is slidably connected to the surface of the slide rod 20 . The top of the sliding sleeve 21 is fixedly connected to the bottom of the partition plate 18 .

[0039] In this embodiment, by providing the slide rod 20 and the slide sleeve 21, when the connecting rod 19 drives the partition plate 18 to move, the partition plate 18 is restricted to move back and forth only along the track of the slide rod 20 and the slide sleeve 21, while improving the stability during the movement.

[0040] The top of the bran screening box 1 is fixedly connected to a support frame 22 , and the bottom of the rotating block 17 is rotatably connected to the top of the support frame 22 through a bearing seat 23 .

[0041] In this embodiment, the support frame 22 and the bearing seat 23 are provided to support the rotating block 17 and other structures, while limiting the rotating block 17 to rotate only around the bearing seat 23, thereby improving the stability during the rotation process.

[0042] Working principle: During the falling process of rice, the rotating rod 7 is driven to rotate by starting the motor 6, and the rotating rod 7 drives the protrusion 8 to rotate. When the raised end of the protrusion 8 contacts the extrusion block 9, it drives the extrusion block 9, the transmission rod 10, the connecting block 11 and the connecting rod 12 to move, and at the same time drives the dispersion block 5 inside the feed pipe 3 to move. When the raised end of the protrusion 8 is no longer in contact with the extrusion block 9, the tension generated by the tension spring 13 drives the connecting block 11, the connecting rod 12 and the dispersion block 5 to reset, and the dispersion block 5 is reciprocated in sequence. When the rice falls and contacts the dispersion block 5, it will be dispersed along the oblique sides of the dispersion block 5, thereby preventing rice from agglomerating, thereby improving the screening efficiency of the bran screening device.

[0043] When the rotating rod 7 rotates, it drives the first bevel gear 14 to rotate, and the first bevel gear 14 drives the second bevel gear 15 to rotate. The second bevel gear 15 drives the traction rod 16 and the rotating block 17 to rotate around the bearing seat 23. When the rotating block 17 rotates, it drives the connecting rod 12 to rotate and adjust around the hinge. At the same time, the connecting rod 19 drives the partition plate 18 to move back and forth along the sliding rod 20 and the sliding sleeve 21, so as to achieve the effect of intermittent opening and closing of the feed pipe 3. At this time, the rice will intermittently enter the bran screening box 1 from the feed pipe 3, so that the wind can fully remove the bran husk, further improving the bran screening effect.

[0044] It should be noted that the motor 6 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art, and the specific composition and principle of the power supply of the motor 6 are clear to those skilled in the art, so they will not be described in detail.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The improved rice processing bran screening device is characterized by: The invention comprises a bran screening box (1), a plurality of fans (2) are fixedly mounted on one side of the bran screening box (1), a feed pipe (3) is fixedly connected to the top of the bran screening box (1), a storage box (4) is fixedly connected to the top of the feed pipe (3), two dispersion blocks (5) are arranged inside the feed pipe (3), and a transmission mechanism is arranged on the top of the bran screening box (1); The transmission mechanism includes a motor (6) fixedly mounted on the top of the bran screening box (1), the output end of the motor (6) is fixedly connected to a rotating rod (7), the surface of the rotating rod (7) is fixedly connected to a protrusion (8), both sides of the protrusion (8) are provided with an extrusion block (9), the two extrusion blocks (9) are fixedly connected to a transmission rod (10) on the side away from each other, one side of the transmission rod (10) is fixedly connected to a connecting block (11), one side of the connecting block (11) is fixedly connected to a connecting rod (12), one end of the connecting rod (12) passes through the interior of the feed pipe (3) and is fixedly connected to one side of the dispersion block (5), a tension spring (13) is sleeved on the surface of the connecting rod (12), one end of the tension spring (13) is fixedly connected to one side of the connecting block (11), and the other end of the tension spring (13) is fixedly connected to one side of the feed pipe (3), and an opening and closing mechanism is provided on the top of the rotating rod (7).

2. The improved rice processing bran screening device according to claim 1, characterized in that: The opening and closing mechanism comprises a first bevel gear (14) fixedly connected to the surface of the rotating rod (7); the top of the first bevel gear (14) is meshedly connected to the second bevel gear (15); the top of the second bevel gear (15) is fixedly connected to the traction rod (16); the top of the traction rod (16) is fixedly connected to the rotating block (17); a partition plate (18) is provided inside the feeding pipe (3); one side of the partition plate (18) extends to the outside of the feeding pipe (3); and the partition plate (18) is hinged to the rotating block (17) through a connecting rod (19).

3. The improved rice processing bran screening device according to claim 2, characterized in that: Two slide bars (20) are fixedly connected to one side of the feed pipe (3), a sliding sleeve (21) is slidably connected to the surface of the slide bar (20), and the top of the sliding sleeve (21) is fixedly connected to the bottom of the partition plate (18).

4. The improved rice processing bran screening device according to claim 2, characterized in that: The top of the bran screening box (1) is fixedly connected to a support frame (22), and the bottom of the rotating block (17) is rotatably connected to the top of the support frame (22) via a bearing seat (23).

5. The improved rice processing bran screening device according to claim 1, characterized in that: The bottom of the extrusion block (9) is fixedly connected to a guide block (24), and the top of the bran screening box (1) is provided with a guide groove (25) used in conjunction with the guide block (24).

6. The improved rice processing bran screening device according to claim 1, characterized in that: Both sides of the dispersion block (5) are sloped.

Images