Centrifugal screening machine for milled rice with embryo
By using a combination of vibration, drive and stirring mechanism in the germ rice centrifugal screening machine, the problem of rice bran being easily blocked during the screening process is solved, and more efficient separation and screening of rice grains and rice bran is achieved.
Patent Information
- Application Number
- CN202421466824.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-25
AI Technical Summary
During the screening process of existing germ rice centrifugal screening machines, rice bran is prone to adhere to the filter holes of the centrifugal cylinder, resulting in an increase in the intensity of subsequent cleaning and may clog the filter holes, affecting the screening efficiency of the rice mixture.
A germ rice centrifugal screening machine is designed, using a vibration mechanism and a driving mechanism to cooperate with the fan and agitator to separate the rice bran from the rice grains through the up and down movement of the guide plate and the suction force of the fan, and the screening speed of the rice grains is accelerated through the stirring mechanism.
It effectively avoids rice bran residue in the centrifuge cylinder, reduces the working intensity of subsequent cleaning, improves the screening efficiency of rice mixture, and reduces the risk of blockage.
Smart Images
Figure CN222778423U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of germ rice screening, in particular to a centrifugal screening machine for germ rice. Background Art
[0002] Germ rice refers to a kind of refined rice that can retain the germ part of rice during the processing. The germ is the root of rice's life and can develop into embryonic leaves and grow. Therefore, germ rice is called "living rice" with vitality. Germ rice is rich in nutrients such as vitamins, zinc, linoleic acid, etc., while ordinary white rice loses its germ during the processing, so its nutrition is far less than that of germ rice.
[0003] In the processing and production of germ rice, operations such as cleaning, drying, husking, polishing, and color sorting are required. Husking is to separate rice and rice bran from rice grains, and after husking, the rice bran needs to be separated from the rice to ensure the normal consumption of rice. Most of the existing centrifugal screening machines for germ rice directly input the rice bran and broken rice into a centrifugal cylinder for centrifugal separation, and screen out the rice bran through multiple screenings. However, during the screening process of rice bran, some larger volumes of rice bran will adhere to the filter holes of the centrifugal cylinder, which not only increases the workload of subsequent cleaning of the centrifugal cylinder, but also the rice bran is easy to clog the filter holes of the centrifugal cylinder, affecting the screening efficiency of the rice mixture. In view of this, we propose a centrifugal screening machine for germ rice. Utility Model Content
[0004] The purpose of the utility model is to solve the above shortcomings and provide a germ rice centrifugal screening machine;
[0005] To achieve the above-mentioned purpose, the utility model provides a germ rice centrifugal screening machine, including a body, a feed box is fixedly connected to the top of the body, a No. 1 conical cylinder is fixedly connected to the inner wall of the body, a No. 2 conical cylinder is fixedly connected to one side of the inner side of the No. 1 conical cylinder, a vibration mechanism is slidably connected to the inside of the feed box for screening rice grains and rice bran, a driving mechanism for controlling the movement of the vibration mechanism is rotatably connected to the inner wall of the body, and a stirring mechanism is rotatably connected to the inside of the body for accelerating the rice grain screening efficiency.
[0006] As a further improvement of the present technical solution, the vibration mechanism includes a guide plate slidably connected to the inner wall of the feed box, one side of the feed box is connected to a connecting pipe, a fan is fixedly installed on the side of the connecting pipe away from the feed box, the inner wall of the feed box is rotatably connected to a cam, and one side of the cam passes through the rear wall of the feed box, the bottom of the feed box is fixedly connected to a discharge port, and the bottom of the discharge port is connected to the No. 2 conical cylinder.
[0007] As a further improvement of the technical solution, the driving mechanism includes a driving rod rotatably connected to the inner wall of the machine body, one side of the driving rod is arranged through one side of the No. 1 conical cylinder and the No. 2 conical cylinder, and the other side of the driving rod is arranged through one side of the machine body, a driving motor is fixedly installed on the side of the driving rod passing through the machine body, two fixed plates are fixedly connected to the rear wall of the feed box, a worm is rotatably connected to the fixed plate, a belt is sleeved on the side of the driving rod passing through the machine body, and the side of the belt away from the driving rod is sleeved on the worm, the cam passes through one side of the feed box and is fixedly connected to a worm wheel, and the worm wheel is meshingly connected to the worm.
[0008] As a further improvement of the present technical solution, the stirring mechanism includes a plurality of rotating plates fixedly connected to a driving rod, the rotating plates are arranged inside the No. 2 conical cylinder, and one side of the rotating plates is in contact with the inner wall of the No. 2 conical cylinder, and the driving rod is connected to a connecting rod on one side located outside the No. 2 conical cylinder, and one side of the connecting rod is in contact with the inner wall of the No. 1 conical cylinder.
[0009] As a further improvement of the present technical solution, a plurality of slide grooves are provided on the inner wall of the feed box, and a slider is slidably connected in each of the slide grooves, and the side of the slider away from the slide groove is connected to one side of the guide plate, and a return spring is fixedly connected to the bottom of the slide groove, and the side of the return spring away from the bottom of the slide groove is fixedly connected to the bottom of the slider.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] In the germ rice centrifugal screening machine, by starting the driving motor and cooperating with other structures and cams in the driving mechanism, the guide plate is driven to move up and down, thereby driving the rice grains above the guide plate to rise upward, and the fan is started to draw the rice bran in the rice grains into the connecting pipe to separate the rice grains and the rice bran, which not only prevents large particles of rice bran from remaining inside the second cone cylinder and the first cone cylinder to block the filter holes, but also reduces the work intensity of subsequent cleaning; when the driving rod rotates, the rotating plate and the connecting rod are driven to rotate, and the rice grains inside the second cone cylinder and the first cone cylinder are stirred respectively, and the rice grains are quickly screened under the action of centrifugal force, thereby improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 It is a schematic diagram of the first cross-sectional structure of the utility model;
[0014] Figure 3 It is a schematic diagram of the second cross-sectional structure of the utility model;
[0015] Figure 4It is a schematic diagram of the side section structure of the feed box of the present utility model.
[0016] The meaning of each number in the figure is:
[0017] 1. Machine body; 2. Feed box; 3. Conical cylinder No. 1; 4. Conical cylinder No. 2; 5. Vibrating mechanism; 51. Guide plate; 52. Connecting pipe; 53. Fan; 54. Cam; 6. Driving mechanism; 61. Driving rod; 62. Driving motor; 63. Fixed plate; 64. Worm; 65. Belt; 66. Worm gear; 7. Stirring mechanism; 71. Rotating plate; 72. Connecting rod; 8. Sliding block; 9. Return spring. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figure 1-Figure 4 As shown, the present embodiment provides a germ rice centrifugal screening machine, including a body 1, a feed box 2 is fixedly connected to the top of the body 1, a first conical cylinder 3 is fixedly connected to the inner wall of the body 1, and a feed port is opened on one side of the body 1, and after screening, the feed port is opened to output rice grains and broken rice, etc., a second conical cylinder 4 is fixedly connected to one side of the inside of the No. 1 conical cylinder 3, and the filter hole of the second conical cylinder 4 is smaller than the filter hole of the first conical cylinder 3, so that the second conical cylinder 4 can screen the broken rice and small particles of rice into the first conical cylinder 3, and a vibration mechanism 5 is slidably connected inside the feed box 2 for screening rice grains and rice bran to prevent rice bran from remaining inside the second conical cylinder 4 and the first conical cylinder 3, which increases the difficulty of subsequent cleaning, and a driving mechanism 6 for controlling the movement of the vibration mechanism 5 is rotatably connected to the inner wall of the body 1, and a stirring mechanism 7 is rotatably connected inside the body 1 for accelerating the rice grain screening efficiency.
[0020] The improvement of this embodiment is that:
[0021] In the processing and production of germ rice, operations such as cleaning, drying, husking, polishing, and color sorting are required. Husking is to separate rice from rice bran, and after husking, the rice bran needs to be separated from the rice to ensure the normal consumption of rice. Most of the existing germ rice centrifugal screening machines directly input the rice bran and broken rice into the centrifugal cylinder for centrifugal separation, and screen out the rice bran through multiple screenings. However, during the screening process, some of the larger volume of rice bran will adhere to the filter holes of the centrifugal cylinder, which not only increases the workload of subsequent cleaning of the centrifugal cylinder, but also makes the rice bran easy to clog. The filter holes of the centrifugal cylinder are blocked, which affects the screening efficiency of the rice mixture. Therefore, a vibration mechanism 5 and a driving mechanism 6 are provided to screen the rice mixture entering the body 1 once, and the rice bran is screened out from the rice grains. This not only effectively avoids the situation where large particles of rice bran remain inside the second conical cylinder 4 and the first conical cylinder 3 and block the filter holes, but also reduces the workload of subsequent cleaning. A stirring mechanism 7 is provided to stir the rice grains in the second conical cylinder 4 and the first conical cylinder 3, so that the rice grains are quickly screened under the action of centrifugal force, thereby improving the use effect of the device.
[0022] Considering the need to separate rice grains and rice bran, the structure of the vibration mechanism 5 is further disclosed, such as Figure 3 As shown, the vibration mechanism 5 includes a guide plate 51 slidably connected to the inner wall of the feed box 2, and the guide plate 51 is inclined to facilitate the falling of rice. A feed hopper is fixedly installed on the top of the feed box 2, and a connecting pipe 52 is connected to one side of the feed box 2. A fan 53 is fixedly installed on the side of the connecting pipe 52 away from the feed box 2. The fan 53 is started. Since rice bran is relatively light, the rice bran in the rice grains is sucked into the connecting pipe 52 under the action of the suction force of the fan 53, so that the rice bran is separated from the rice grains. The cam 54 is rotatably connected to the inner wall of the feed box 2, and one side of the cam 54 passes through the rear wall of the feed box 2. The cam 54 rotates and collides with the guide plate 51, driving the guide plate 51 to move up and down, thereby driving the rice grains above the guide plate 51 to rise upward, making it convenient for the fan 53 to extract the rice bran from the rice grains. A discharge port is fixedly connected to the bottom of the feed box 2, and the bottom of the discharge port is connected to the No. 2 conical cylinder 4. The separated rice grains fall into the interior of the No. 2 conical cylinder 4 from the discharge port.
[0023] Considering the need to drive the vibration mechanism 5 to move, the structure of the driving mechanism 6 is further disclosed, such as Figure 3 and Figure 4As shown, the driving mechanism 6 includes a driving rod 61 rotatably connected to the inner wall of the body 1, one side of the driving rod 61 passes through one side of the No. 1 cone tube 3 and the No. 2 cone tube 4, and the other side of the driving rod 61 passes through one side of the body 1, the driving rod 61 passes through one side of the body 1 and is fixedly installed with a driving motor 62, and the driving motor 62 is started to drive the driving rod 61 to rotate, and two fixed plates 63 are fixedly connected to the rear wall of the feed box 2, and a worm 64 is rotatably connected to the fixed plate 63, a belt 65 is sleeved on one side of the driving rod 61 passing through the body 1, and the side of the belt 65 away from the driving rod 61 is sleeved on the worm 64, the driving rod 61 rotates, and the belt 65 drives the worm 64 to rotate, the cam 54 passes through one side of the feed box 2 and is fixedly connected with a worm wheel 66, and the worm wheel 66 is meshed with the worm 64, the rotation of the worm 64 drives the worm wheel 66 to rotate, thereby driving the cam 54 in the vibration mechanism 5 to rotate.
[0024] Considering the need to speed up the screening efficiency of rice grains, the structure of the stirring mechanism 7 is further disclosed, such as Figure 3 As shown, the stirring mechanism 7 includes a plurality of rotating plates 71 fixedly connected to the driving rod 61, the rotating plates 71 are arranged inside the No. 2 conical cylinder 4, and one side of the rotating plates 71 is in contact with the inner wall of the No. 2 conical cylinder 4. When the driving rod 61 rotates, the rotating plates 71 are driven to rotate, so as to stir the rice grains inside the No. 2 conical cylinder 4. The driving rod 61 is connected to a connecting rod 72 on one side located outside the No. 2 conical cylinder 4, and one side of the connecting rod 72 is in contact with the inner wall of the No. 1 conical cylinder 3. When the driving rod 61 rotates, the connecting rod 72 is driven to rotate, so as to stir the rice grains inside the No. 1 conical cylinder 3, so that the rice grains are thrown out through the filter holes of the No. 1 conical cylinder 3 and the No. 2 conical cylinder 4 under the action of centrifugal force.
[0025] Considering the stability of the movement of the guide plate 51, a plurality of slide grooves are provided on the inner wall of the feed box 2, and sliders 8 are slidably connected in the slide grooves, and the side of the slider 8 away from the slide groove is connected to one side of the guide plate 51, and when the cam 54 drives the guide plate 51 to move up and down, the guide plate 51 drives a plurality of sliders 8 to move up and down. The slider 8 is arranged to make the movement of the guide plate 51 more stable, and a return spring 9 is fixedly connected to the bottom of the slide groove, and the side of the return spring 9 away from the bottom of the slide groove is fixedly connected to the bottom of the slider 8. When the cam 54 drives the guide plate 51 to move upward, the slider 8 is driven to move, and then the return spring 9 is driven to stretch and deform. When the cam 54 does not contact the bottom of the guide plate 51, the return spring 9 restores the deformation force, and drives the slider 8 and the guide plate 51 to reset and move.
[0026] When the germ rice centrifugal screening machine of the utility model is used, the rice grains to be screened are poured into the feed box 2, and the rice grains flow into the upper part of the guide plate 51, and the driving motor 62 is started at the same time, driving the driving rod 61 to rotate, and the belt 65 drives the worm 64 to rotate, thereby driving the worm wheel 66 to rotate, and then driving the cam 54 to rotate, and the rotation of the cam 54 drives the guide plate 51 to move up and down, thereby driving the rice grains above the guide plate 51 to rise upward, and at the same time, the fan 53 is started, and because the rice bran is relatively light, the rice bran in the rice grains is sucked into the connecting pipe 52 under the action of the suction force of the fan 53, so as to separate the rice grains and the rice bran;
[0027] The initially separated rice grains and broken rice fall into the No. 2 conical cylinder 4 from the discharge port of the feed box 2 under gravity. When the driving rod 61 rotates, the rotating plate 71 is driven to rotate to stir the rice grains inside the No. 2 conical cylinder 4. When the driving rod 61 rotates, the connecting rod 72 is driven to rotate to stir the rice grains inside the No. 1 conical cylinder 3. Under the action of centrifugal force, the complete rice grains and broken rice are quickly screened, thereby improving the screening efficiency of the device.
[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A germ rice centrifugal screening machine, comprising a machine body (1), a feed box (2) fixedly connected to the top of the machine body (1), a first conical cylinder (3) fixedly connected to the inner wall of the machine body (1), a second conical cylinder (4) fixedly connected to one side of the first conical cylinder (3), characterized in that: The feed box (2) is slidably connected to a vibration mechanism (5) for screening rice grains and rice bran; the inner wall of the machine body (1) is rotatably connected to a driving mechanism (6) for controlling the movement of the vibration mechanism (5); and the machine body (1) is rotatably connected to a stirring mechanism (7) for accelerating the rice grain screening efficiency.
2. The germ rice centrifugal screening machine according to claim 1, characterized in that: The vibration mechanism (5) comprises a guide plate (51) slidably connected to the inner wall of the feed box (2); one side of the feed box (2) is connected to a connecting pipe (52); a fan (53) is fixedly installed on the side of the connecting pipe (52) away from the feed box (2); a cam (54) is rotatably connected to the inner wall of the feed box (2), and one side of the cam (54) passes through the rear wall of the feed box (2); a discharge port is fixedly connected to the bottom of the feed box (2), and the bottom of the discharge port is connected to the second conical cylinder (4).
3. The germ rice centrifugal screening machine according to claim 2, characterized in that: The driving mechanism (6) comprises a driving rod (61) rotatably connected to the inner wall of the machine body (1); one side of the driving rod (61) is arranged to pass through one side of the first cone cylinder (3) and the second cone cylinder (4), and the other side of the driving rod (61) is arranged to pass through one side of the machine body (1); a driving motor (62) is fixedly installed on the side of the driving rod (61) passing through the machine body (1); two fixing plates (63) are fixedly connected to the rear wall of the feed box (2); a worm (64) is rotatably connected to the fixing plate (63); a belt (65) is sleeved on the side of the driving rod (61) passing through the machine body (1), and the side of the belt (65) away from the driving rod (61) is sleeved on the worm (64); a worm wheel (66) is fixedly connected to the side of the cam (54) passing through the feed box (2), and the worm wheel (66) is meshingly connected to the worm (64).
4. The germ rice centrifugal screening machine according to claim 3, characterized in that: The stirring mechanism (7) comprises a plurality of rotating plates (71) fixedly connected to the driving rod (61); the rotating plates (71) are arranged inside the second conical cylinder (4), and one side of the rotating plates (71) is in contact with the inner wall of the second conical cylinder (4); the driving rod (61) is connected to a connecting rod (72) on one side located outside the second conical cylinder (4), and one side of the connecting rod (72) is in contact with the inner wall of the first conical cylinder (3).
5. The germ rice centrifugal screening machine according to claim 2, characterized in that: The inner wall of the feed box (2) is provided with a plurality of slide grooves, each of which is slidably connected with a slider (8), and the side of the slider (8) away from the slide groove is connected to the side of the guide plate (51), and a return spring (9) is fixedly connected to the bottom of the slide groove, and the side of the return spring (9) away from the bottom of the slide groove is fixedly connected to the bottom of the slider (8).