Impurity and stone removing device for rice processing

Abstract

The utility model provides an impurity and stone removing device for rice processing, which comprises a shell, a feeding hopper and a screening plate, and the feeding hopper is fixedly communicated with the top of the shell. The utility model relates to the technical field of rice processing. According to the impurity and stone removing device for rice processing, the transmission mechanism is arranged, after rice is placed in the shell through the feeding hopper, the rice can fall on a screening plate, then a motor is started to drive a rotating rod to rotate, the rotating rod can drive a rotating disc and a transmission rod to rotate, and therefore the rice can be separated from the screening plate; when the surface of a transmission rod makes contact with the inner wall of a transmission groove, a transmission block and a screening plate are driven to move downwards through extrusion, meanwhile, a spring is extruded, and when the transmission rod does not make contact with the inner wall of the transmission groove, the screening plate suddenly moves upwards along the track of a sliding rod and a sliding hole under the influence of the counter-acting force of the spring, and vibration is generated; and the rice can fall off from the screening plate more quickly, stones are left on the screening plate, and the working efficiency of the impurity and stone removing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to a device for removing impurities and stones for rice processing. 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] Publication No. "CN221017319U" provides a rice processing impurity removal and stone removal device, comprising a limiting frame, an impurity removal and stone removal device body disposed inside the limiting frame, and a screening device disposed at the bottom of the impurity removal and stone removal device body, with a filtering device disposed below the screening device. The utility model utilizes the rice, after impurities and stones have been removed from the impurity removal and stone removal device body, to fall from the screening device onto the surface of a filter plate inside a filter box. A vibration motor on the back side of the filter box is then activated to drive the entire device to shake up and down. During the shaking process, the vibration device is driven to improve vibration efficiency, thereby improving screening efficiency. The rice is filtered through the filter holes provided on the surface of the filter plate, while impurities remain on the surface. The sieved rice is then collected by the limiting frame and a collection drawer, thereby improving the utilization efficiency of the impurity removal and stone removal device.

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

[0005] During the rice processing process, it is necessary to remove impurities and separate the stones in the rice. Generally, the rice is placed inside the impurity removal and stone removal device and filtered through a screening plate to separate the rice and stones. The screening process is cumbersome and wastes a lot of time, which reduces the working efficiency of the impurity removal and stone removal device. Utility Model Content

[0006] The purpose of the utility model is to provide a device for removing impurities and stones for rice processing, so as 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] A device for removing impurities and stones for rice processing comprises a housing, an upper hopper, and a screening plate. The upper hopper is fixedly connected to the top of the housing. The screening plate is located inside the housing. Four springs are fixedly connected to the bottom of the screening plate. A support block is fixedly connected to the bottom of the spring. One side of the support block is fixedly connected to the inner wall of the housing. A mounting frame is fixedly connected to one side of the housing. A transmission mechanism is provided on one side of the mounting frame.

[0009] The transmission mechanism includes a motor fixedly connected to one side of the mounting frame, the output end of the motor is fixedly connected to a rotating rod, one end of the rotating rod passes through the inner wall of the shell and is fixedly connected to a rotating disk, one side of the rotating disk is fixedly connected to a transmission rod, the bottom of the screening plate is fixedly connected to two transmission blocks, one side of the transmission block is provided with a transmission groove for use with the transmission rod, and the top of the rotating rod is provided with a toggle mechanism.

[0010] Preferably, the toggle mechanism includes a first transmission wheel fixedly connected to the surface of the rotating rod, the first transmission wheel is connected to the second transmission wheel through a belt drive, one side of the second transmission wheel is fixedly connected to a connecting rod, one end of the connecting rod passes through the inner wall of the shell and is fixedly connected to a connecting block, one side of the connecting block is fixedly connected to a linkage rod, and the bottom of the linkage rod is fixedly connected to a toggle rod.

[0011] Preferably, a bearing is provided on one side of the connecting block, and the connecting block is rotatably connected to the inner wall of the housing through the bearing.

[0012] Preferably, there are several toggle rods, which are evenly distributed at the bottom of the linkage rod.

[0013] Preferably, a sliding rod is fixedly connected to the bottom of the screening plate, and a sliding hole for use with the sliding rod is opened on the top of the support block.

[0014] Preferably, a debris removal opening is provided on one side of the shell, and a baffle is provided inside the debris removal opening.

[0015] Preferably, a mounting lug is fixedly connected to one side of the baffle, a hand screw is threadedly connected to one side of the mounting lug, and a threaded hole for use with the hand screw is opened on one side of the shell.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model sets a transmission mechanism, which can place the rice in the shell through the upper hopper, and then the rice will fall on the screening plate, and then the motor is started to drive the rotating rod to rotate. Figure 4 As shown, the rotating rod drives the rotating disk and the transmission rod to rotate. When the surface of the transmission rod contacts the inner wall of the transmission groove, the transmission block and the screen plate are driven downward by extrusion, and the spring is squeezed at the same time. When the transmission rod does not contact the inner wall of the transmission groove, the screen plate will move upward suddenly along the trajectory of the sliding rod and the sliding hole under the influence of the spring reaction force, generating vibration, so that the rice can fall from the screen plate faster, leaving the stones on the screen plate, thereby improving the working efficiency of the impurity and stone removal device.

[0018] 2. The utility model is provided with a toggle mechanism, which can drive the first transmission wheel to rotate while the rotating rod rotates. The first transmission wheel will drive the second transmission wheel to rotate through a belt. The second transmission wheel will drive the connecting rod and the connecting block to rotate around the bearing. The connecting block will drive the linkage rod and the toggle rod to rotate, thereby spreading the rice on the screening plate, so that the rice can fall from the screening plate faster, further improving the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a schematic diagram of a cross-section of the main structure of the utility model;

[0021] Figure 3 This is a three-dimensional diagram of the screening plate of the utility model;

[0022] Figure 4 A trajectory diagram of the movement of the local structure of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the exploded main structure of the utility model;

[0024] Figure 6 For this utility model Figure 5 A partial enlarged view of point A in the middle.

[0025] In the figure: 1. Shell; 2. Upper hopper; 3. Screening plate; 4. Spring; 5. Support block; 6. Mounting frame; 7. Motor; 8. Rotating rod; 9. Rotating disk; 10. Transmission rod; 11. Transmission block; 12. Transmission groove; 13. First transmission wheel; 14. Belt; 15. Second transmission wheel; 16. Connecting rod; 17. Connecting block; 18. Linkage rod; 19. Toggle rod; 20. Bearing; 21. Sliding rod; 22. Sliding hole; 23. Debris removal port; 24. Baffle; 25. Mounting lug; 26. Thumb screw; 27. Threaded hole. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1 - Figure 6 , the utility model provides a technical solution: Example 1:

[0028] A device for removing impurities and stones for rice processing includes a housing 1, an upper hopper 2, and a screening plate 3. The upper hopper 2 is fixedly connected to the top of the housing 1. The screening plate 3 is located inside the housing 1. Four springs 4 are fixedly connected to the bottom of the screening plate 3. The bottom of the spring 4 is fixedly connected to a support block 5. One side of the support block 5 is fixedly connected to the inner wall of the housing 1. A mounting frame 6 is fixedly connected to one side of the housing 1. A transmission mechanism is provided on one side of the mounting frame 6.

[0029] The transmission mechanism includes a motor 7 fixedly connected to one side of the mounting frame 6, the output end of the motor 7 is fixedly connected to a rotating rod 8, one end of the rotating rod 8 passes through the inner wall of the shell 1, and is fixedly connected to a rotating disk 9, one side of the rotating disk 9 is fixedly connected to a transmission rod 10, and the bottom of the screening plate 3 is fixedly connected to two transmission blocks 11, and one side of the transmission block 11 is provided with a transmission groove 12 used in conjunction with the transmission rod 10, and a toggle mechanism is provided on the top of the rotating rod 8.

[0030] In this embodiment, it is considered that the rice needs to be cleaned during the processing and the stones in the rice need to be separated. Generally, the rice is placed inside the impurity removal and stone removal device and filtered through the screening plate 3 to separate the rice and the stones. The screening process is cumbersome and requires a lot of time to waste, which reduces the working efficiency of the impurity removal and stone removal device. Therefore, a transmission mechanism is provided, so that after the rice passes through the upper hopper 2 and is placed in the housing 1, the rice will fall on the screening plate 3, and then the motor 7 is started to drive the rotating rod 8 to rotate. Figure 4 As shown, the rotating rod 8 drives the rotating disk 9 and the transmission rod 10 to rotate. When the surface of the transmission rod 10 contacts the inner wall of the transmission groove 12, the transmission block 11 and the screen plate 3 are driven to move downward by squeezing, and the spring 4 is squeezed at the same time. When the transmission rod 10 is no longer in contact with the inner wall of the transmission groove 12, the screen plate 3 is affected by the reaction force of the spring 4 and suddenly moves upward along the trajectory of the sliding rod 21 and the sliding hole 22, generating vibration, so that the rice can fall from the screen plate 3 faster, leaving the stones on the screen plate 3, thereby improving the working efficiency of the impurity and stone removal device.

[0031] The invention solves the problem that, in the process of rice processing, impurities need to be removed and stones in the rice need to be separated. Generally, the rice is placed in the impurity removal and stone removal device and filtered through the screening plate 3 to separate the rice and stones. The screening process is cumbersome and wastes a lot of time, which reduces the working efficiency of the impurity removal and stone removal device.

[0032] It should be noted that Figure 4 S1 is the moving track of the transmission rod 10, and S2 is the moving track of the screening plate 3.

[0033] A sliding rod 21 is fixedly connected to the bottom of the screening plate 3 , and a sliding hole 22 for use with the sliding rod 21 is opened on the top of the support block 5 .

[0034] In this embodiment, by providing a sliding rod 21 and a sliding hole 22, when the transmission rod 10 rotates and contacts the inner wall of the transmission groove 12, the filter plate can only move downward along the trajectory of the sliding rod 21 and the sliding hole 22 by squeezing, thereby limiting the movement trajectory.

[0035] A debris removal opening 23 is provided on one side of the housing 1 , and a baffle 24 is provided inside the debris removal opening 23 .

[0036] In this embodiment, by providing the impurity removal port 23 and the baffle 24, the stones can be removed through the impurity removal port 23 after being separated from the screening plate 3. At the same time, the design of the baffle 24 can prevent the rice from overflowing from the impurity removal port 23 during the separation process of the rice and stones.

[0037] A mounting lug 25 is fixedly connected to one side of the baffle 24 , a hand screw 26 is threadedly connected to one side of the mounting lug 25 , and a threaded hole 27 for use with the hand screw 26 is opened on one side of the housing 1 .

[0038] In this embodiment, the position of the baffle 24 can be fixed by providing the mounting lugs 25, the hand screws 26 and the threaded holes 27. At the same time, the baffle 24 can be more easily removed later by positioning it with the hand screws 26 and the threaded holes 27. Example 2:

[0039] On the basis of Example 1, the transmission mechanism in this embodiment can control the vibration of the screen plate 3, thereby achieving the effect of improving the working efficiency of the impurity removal and stone removal device. However, considering that rice is easily accumulated on the screen plate 3 when fed, if it is not dispersed, it will also affect the working efficiency of the impurity removal and stone removal device. The toggle mechanism in this application includes a first transmission wheel 13 fixedly connected to the surface of the rotating rod 8, the first transmission wheel 13 is connected to the second transmission wheel 15 through a belt 14, and one side of the second transmission wheel 15 is fixedly connected to a connecting rod 16, one end of the connecting rod 16 passes through the inner wall of the shell 1, and is fixedly connected to a connecting block 17, one side of the connecting block 17 is fixedly connected to a linkage rod 18, and the bottom of the linkage rod 18 is fixedly connected to a toggle rod 19.

[0040] In this embodiment, it is taken into consideration that rice is easily accumulated on the screening plate 3 when being fed. If it is not dispersed, the working efficiency of the impurity and stone removing device will be affected. Therefore, a toggle mechanism is provided, which can drive the first transmission wheel 13 to rotate while the rotating rod 8 rotates. The first transmission wheel 13 drives the second transmission wheel 15 to rotate through the belt 14. The second transmission wheel 15 drives the connecting rod 16 and the connecting block 17 to rotate around the bearing 20. The connecting block 17 drives the linkage rod 18 and the toggle rod 19 to rotate, thereby spreading the rice on the screening plate 3, thereby allowing the rice to fall from the screening plate 3 faster, thereby further improving the screening effect.

[0041] The invention solves the problem that rice is easily accumulated on the screening plate 3 when being fed, and if it is not dispersed, the working efficiency of the impurity and stone removing device will be affected.

[0042] Preferably, a bearing 20 is provided on one side of the connecting block 17 , and the connecting block 17 is rotatably connected to the inner wall of the housing 1 through the bearing 20 .

[0043] In this embodiment, the bearing 20 is provided to support the connection block 17 and other structures, restricting the connection block 17 and other structures to rotate only, while improving the stability and smoothness of the rotation process.

[0044] Preferably, there are several toggle rods 19 , which are evenly distributed at the bottom of the linkage rod 18 .

[0045] In this embodiment, by setting the number of the toggle rods 19 to be a plurality, the rice can be effectively dispersed when the linkage rod 18 drives the toggle rod 19 to rotate and contact the rice, so that the rice is evenly distributed on the screening plate 3, thereby improving the effect of separating rice from stones.

[0046] Working principle: After the rice is placed in the housing 1 through the upper hopper 2, the rice will fall on the screening plate 3, and then the motor 7 is started to drive the rotating rod 8 to rotate, such as Figure 4 As shown, the rotating rod 8 drives the rotating disk 9 and the transmission rod 10 to rotate. When the surface of the transmission rod 10 contacts the inner wall of the transmission groove 12, the transmission block 11 and the screen plate 3 are driven to move downward by squeezing, and the spring 4 is squeezed at the same time. When the transmission rod 10 is no longer in contact with the inner wall of the transmission groove 12, the screen plate 3 is affected by the reaction force of the spring 4 and suddenly moves upward along the trajectory of the sliding rod 21 and the sliding hole 22, generating vibration, so that the rice can fall from the screen plate 3 faster, leaving the stones on the screen plate 3, thereby improving the working efficiency of the impurity and stone removal device.

[0047] When the rotating rod 8 rotates, the first transmission wheel 13 is driven to rotate. The first transmission wheel 13 drives the second transmission wheel 15 to rotate through the belt 14. The second transmission wheel 15 drives the connecting rod 16 and the connecting block 17 to rotate around the bearing 20. The connecting block 17 drives the linkage rod 18 and the toggle rod 19 to rotate, thereby spreading the rice on the screening plate 3, so that the rice can fall from the screening plate 3 faster, further improving the screening effect.

[0048] It should be noted that the motor 7 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 7 are clear to those skilled in the art, so they are not described in detail.

[0049] 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. A device for removing impurities and stones for rice processing, comprising a housing (1), an upper hopper (2) and a screening plate (3), wherein the upper hopper (2) is fixedly connected to the top of the housing (1), and the screening plate (3) is located inside the housing (1), characterized in that: Four springs (4) are fixedly connected to the bottom of the screening plate (3), a support block (5) is fixedly connected to the bottom of the spring (4), one side of the support block (5) is fixedly connected to the inner wall of the housing (1), one side of the housing (1) is fixedly connected to a mounting frame (6), and one side of the mounting frame (6) is provided with a transmission mechanism: The transmission mechanism comprises a motor (7) fixedly connected to one side of the mounting frame (6); an output end of the motor (7) is fixedly connected to a rotating rod (8); one end of the rotating rod (8) passes through the inner wall of the housing (1) and is fixedly connected to a rotating disk (9); one side of the rotating disk (9) is fixedly connected to a transmission rod (10); two transmission blocks (11) are fixedly connected to the bottom of the screening plate (3); a transmission groove (12) for use with the transmission rod (10) is provided on one side of the transmission block (11); and a toggle mechanism is provided on the top of the rotating rod (8).

2. The impurity and stone removal device for rice processing according to claim 1, characterized in that: The toggle mechanism comprises a first transmission wheel (13) fixedly connected to the surface of the rotating rod (8), the first transmission wheel (13) being connected to the second transmission wheel (15) via a belt (14), one side of the second transmission wheel (15) being fixedly connected to a connecting rod (16), one end of the connecting rod (16) passing through the inner wall of the housing (1) and being fixedly connected to a connecting block (17), one side of the connecting block (17) being fixedly connected to a linkage rod (18), and the bottom of the linkage rod (18) being fixedly connected to a toggle rod (19).

3. The impurity and stone removal device for rice processing according to claim 2, characterized in that: A bearing (20) is provided on one side of the connecting block (17), and the connecting block (17) is rotatably connected to the inner wall of the housing (1) via the bearing (20).

4. The impurity and stone removal device for rice processing according to claim 2, characterized in that: The number of the toggle rods (19) is several and evenly distributed at the bottom of the linkage rod (18).

5. The impurity and stone removal device for rice processing according to claim 1, characterized in that: The bottom of the screening plate (3) is fixedly connected to a sliding rod (21), and the top of the support block (5) is provided with a sliding hole (22) for use with the sliding rod (21).

6. The impurity and stone removal device for rice processing according to claim 1, characterized in that: A debris removal opening (23) is provided on one side of the housing (1), and a baffle (24) is provided inside the debris removal opening (23).

7. The impurity and stone removal device for rice processing according to claim 6, characterized in that: One side of the baffle (24) is fixedly connected to a mounting lug (25), one side of the mounting lug (25) is threadedly connected to a hand screw (26), and one side of the housing (1) is provided with a threaded hole (27) for use with the hand screw (26).

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