Rice seed selecting device

Abstract

The rice seed fine selection device comprises a fixed supporting seat, a movable supporting frame, an up-down swing mechanism, a front-back swing mechanism, a left-right swing mechanism and a fine selection mechanism, the rear end of the fixed supporting seat is hinged to the movable supporting frame, and the front end of the fixed supporting seat is fixedly connected with the fixed end of the up-down swing mechanism; the movable end of the up-down swing mechanism is hinged to the movable supporting frame so as to drive the movable supporting frame to swing up and down, the front end of the movable supporting frame inclines upwards, the movable supporting frame is further fixedly connected with the fixed end of the front-back swing mechanism and the fixed end of the left-right swing mechanism, and the movable end of the front-back swing mechanism and the movable end of the left-right swing mechanism are hinged to the selecting mechanism. And the sorting mechanism is driven to swing back and forth and left and right. According to the dustpan jolting principle, by means of the gravity difference, density difference and shape difference between substances, impurities and bad seeds are naturally separated from selected seeds in the material tray by adjusting the jolting frequency, and the purpose of selection is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of rice seed selection, and in particular to a rice seed selection device. Background Art

[0002] Rice is one of the three major staple foods in my country, and its planting area is also the largest among the three major staple foods. The planting areas are mainly in the southern region, and it is also planted in water-rich areas in the north, such as the Northeast and the Hetao Plain. At present, the traditional method for sorting rice seeds is to select seeds that meet the planting requirements through wind selection, screening, water flotation, etc. For example, wind selection and water flotation can screen out empty shells, shriveled unqualified seeds, and screening can remove large particles such as stones. Despite this, the seeds still contain a small amount of incomplete or poorly grown seeds. The density and weight of these seeds are similar to those of good varieties, and it is difficult to remove them using traditional methods, which affects the germination rate of the seeds. Summary of the invention

[0003] In view of this, it is necessary to provide a rice seed selection device that can better remove incomplete or poorly grown seeds.

[0004] A rice seed selection device comprises a fixed support seat, a movable support frame, an up and down swinging mechanism, a front and back swinging mechanism, a left and right swinging mechanism, and a selection mechanism. The rear end of the fixed support seat is hinged to the movable support frame, the front end of the fixed support seat is fixedly connected to the fixed end of the up and down swinging mechanism, the movable end of the up and down swinging mechanism is hinged to the movable support frame to drive the movable support frame to swing up and down, the front end of the movable support frame is tilted upward, the movable support frame is also fixedly connected to the fixed ends of the front and back swinging mechanism and the left and right swinging mechanism, the movable ends of the front and back swinging mechanism and the left and right swinging mechanism are hinged to the selection mechanism to drive the selection mechanism to swing back and forth and left and right.

[0005] Preferably, the up and down swing mechanism includes a first drive motor, a first cam, and a first connecting rod. The body of the first drive motor is fixedly connected to the fixed support seat, the rotating shaft of the first drive motor is fixedly connected to one end of the first cam, the other end of the first cam is hinged to one end of the first connecting rod, and the other end of the first connecting rod is hinged to the movable support frame to drive the movable support frame to swing up and down.

[0006] Preferably, the forward and backward swinging mechanism includes a second drive motor, a second cam, and a second connecting rod. The body of the second drive motor is fixedly connected to the movable support frame, the rotating shaft of the second drive motor is fixedly connected to one end of the second cam, the other end of the second cam is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the selection mechanism to drive the selection mechanism to swing forward and backward.

[0007] Preferably, the left - right swing mechanism includes a third driving motor, a third cam, a third connecting rod, a left - right translation plate, a slider, and a guide rail. The body of the third driving motor is fixedly connected to the movable support frame. The rotating shaft of the third driving motor is fixedly connected to one end of the third cam. The other end of the third cam is hinged to the upper end of the third connecting rod. The lower end of the third connecting rod is sleeved and connected to the rear end of the left - right translation plate. A long circular hole is provided at the rear end of the left - right translation plate, and the third connecting rod can slide back and forth in the long circular hole. The middle part of the left - right translation plate is fixedly connected to the lower end of the slider, and the upper end of the slider is sleeved and connected to the guide rail. The slider can slide left and right along the guide rail. The front end of the left - right translation plate is hinged to the seed - selection mechanism to drive the seed - selection mechanism to move left and right.

[0008] Preferably, the seed - selection mechanism includes a material tray, a vertical connecting rod, an upper cross bar, a fixing plate, a middle cross bar, and a C - shaped plate. The left and right sides of the material tray are respectively sleeved and connected to the lower ends of the vertical connecting rods. The upper ends of the vertical connecting rods are connected to one end of the upper cross bar. The upper cross bar is provided with a universal joint so that the vertical connecting rods can swing 360 degrees in the horizontal direction. The other end of the upper cross bar is fixedly connected to the upper end of the fixing plate. The lower end of the fixing plate is fixedly connected to the movable support frame. The middle part of the vertical connecting rod is also sleeved and connected to one end of the middle cross bar. The other end of the middle cross bar is connected to the C - shaped plate. The middle part of the C - shaped plate is bolt - connected to the left - right translation plate.

[0009] Preferably, the rice - seed selection device further includes a blower, and the blower is arranged on the movable support frame, and the blower is located behind and on the side of the movable support frame.

[0010] Beneficial effects: The present invention utilizes the differences in gravity, density, shape, volume, etc. between substances, and through the amplitude and frequency changes during the swinging process of the material tray and the frictional force on the surface of the material tray, generates various motion characteristics during the sorting process, including aggregation, diffusion, separation, and stratification, etc., so that impurities and defective seeds are naturally separated from the selected seeds in the material tray, achieving the purpose of seed selection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the rice - seed selection device of the present invention from a better angle.

[0012] Figure 2 is Figure 1 a partial enlarged view of...

[0013] Figure 3 is a schematic structural diagram of the rice - seed selection device of the present invention from another better angle.

[0014] Figure 4 is Figure 3 a partial enlarged view of...

[0015] Figure 5It is a structural schematic diagram of the rice seed selection device of the present invention from another better angle.

[0016] Figure 6 is Figure 5 partial enlarged view of.

[0017] Figure 7 It is a cross-sectional view of the rice seed selection device of the present invention.

[0018] In the figure: rice seed selection device 10, fixed support base 20, movable support frame 30, up and down swing mechanism 40, first drive motor 401, first cam 402, first connecting rod 403, front and back swing mechanism 50, second drive motor 501, second cam 502, second connecting rod 503, left and right swing mechanism 60, third drive motor 601, third cam 602, third connecting rod 603, left and right translation plate 604, long circular hole 6041, slider 605, guide rail 606, selection mechanism 70, material tray 701, vertical connecting rod 702, upper cross bar 703, fixing plate 704, middle cross bar 705, C-shaped plate 706, universal joint 80, fan 90. Detailed implementation mode

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Please refer to Figures 1 to 7 , a rice seed selection device 10 includes a fixed support base 20, a movable support frame 30, an up and down swing mechanism 40, a front and back swing mechanism 50, a left and right swing mechanism 60, and a selection mechanism 70. The rear end of the fixed support base 20 is hinged to the movable support frame 30, the front end of the fixed support base 20 is fixedly connected to the fixed end of the up and down swing mechanism 40, and the movable end of the up and down swing mechanism 40 is hinged to the movable support frame 30 to drive the movable support frame 30 to swing up and down. The movable support frame 30 is also fixedly connected to the fixed ends of the front and back swing mechanism 50 and the left and right swing mechanism 60. The movable ends of the front and back swing mechanism 50 and the left and right swing mechanism 60 are hinged to the selection mechanism 70 to drive the selection mechanism 70 to swing back and forth and left and right.

[0021] The fixed support base 20 of the present invention is used to support the movable support frame 30. The rear end of the fixed support frame is hinged to the movable support frame 30. Specifically, in a preferred embodiment, two shaft seats are respectively provided on the fixed support base 20 and the movable support frame 30, and the rotating shaft is sleeved on the shaft seats.

[0022] The movable support frame 30 of the present invention is used to fix the body of the up-and-down swing mechanism 40 , the front-and-back swing mechanism 50 , and the left-and-right swing mechanism 60 , and at the same time plays a suspending role for the selection mechanism 70 .

[0023] The selection mechanism 70 of the present invention is used to separate low-quality seeds from rice seeds. The selection mechanism 70 contains a tray 701 for holding rice seeds. After the tray 701 vibrates, the selected seeds and low-quality seeds in the tray 701 are separated and thus sorted out.

[0024] Specifically, when the rice seed selection device 10 of the present invention is working, the three swing mechanisms can operate synchronously, or one or two of them can operate. The linkage operation of the three swing mechanisms can select the rice seeds in the tray 701. The three swing mechanisms drive the tray 701 to swing during the swinging process. During the vibration process, the different weights of rice seeds of different masses lead to different inertias. The incomplete or poorly grown rice seeds have small inertia and are more likely to change their motion state, thereby being separated from the well-grown rice seeds. The rice seed selection device 10 of the present invention adopts mechanized seed selection. The vibration frequency and swing direction of the tray 701 can be adjusted according to actual conditions. The vibration process is very stable, so the incomplete or poorly grown seeds in the rice seeds can be sorted out. Because it is a mechanized operation, the sorting efficiency is very high. The staff only needs to pour the rice seeds and take the sorted rice seeds away. The labor intensity is significantly reduced.

[0025] The up-and-down swing mechanism 40 of the present invention drives the movable support frame 30 to swing. There is a material tray 701 on the movable support frame 30. Therefore, when the movable support frame 30 swings up and down, it can also drive the material tray 701 to swing up and down.

[0026] In a preferred embodiment, the up and down swing mechanism 40 includes a first drive motor 401, a first cam 402, and a first connecting rod 403. The body of the first drive motor 401 is fixedly connected to the fixed support base 20, the rotating shaft of the first drive motor 401 is fixedly connected to one end of the first cam 402, the other end of the first cam 402 is hinged to one end of the first connecting rod 403, and the other end of the first connecting rod 403 is hinged to the movable support frame 30 to drive the movable support frame 30 to swing up and down.

[0027] The first driving motor 401 is installed on the fixed support seat 20. When the up-and-down swing mechanism 40 is driven, the first driving motor 401 is in a stationary state. The rotating shaft of the first driving motor 401 drives the first cam 402 to rotate, the first cam 402 drives the first connecting rod 403 to move, and the first connecting rod 403 drives the material tray 701 on the selection mechanism 70 to swing up and down.

[0028] The front-rear swing mechanism 50 of the present invention drives the material tray 701 on the selection mechanism 70 to swing back and forth.

[0029] Specifically, in a preferred embodiment, the forward and backward swinging mechanism 50 includes a second driving motor 501, a second cam 502, and a second connecting rod 503. The body of the second driving motor 501 is fixedly connected to the movable support frame 704, the rotating shaft of the second driving motor 501 is fixedly connected to one end of the second cam 502, the other end of the second cam 502 is hinged to one end of the second connecting rod 503, and the other end of the second connecting rod 503 is hinged to the selection mechanism 70 to drive the selection mechanism to swing forward and backward.

[0030] The second drive motor 501 is installed on the left or right side of the movable support frame 30. During the driving process of the forward and backward swinging mechanism 50, the second drive motor 501 and the movable support frame 30 keep moving synchronously. The rotating shaft of the second drive motor 501 drives the second connecting rod 503 to move, and the second connecting rod 503 drives the material tray 701 to swing back and forth.

[0031] The left-right swing mechanism 60 of the present invention drives the material tray 701 to swing left-right.

[0032] Specifically, in a preferred embodiment, the left-right swing mechanism 60 includes a third drive motor 601, a third cam 602, a third connecting rod 603, a left-right translation plate 604, a slider 605, and a guide rail 606. The body of the third drive motor 601 is fixedly connected to the movable support frame 30, the rotating shaft of the third drive motor 601 is fixedly connected to one end of the third cam 602, the other end of the third cam 602 is hinged to the upper end of the third connecting rod 603, and the third connecting rod 603 is hinged to the left-right translation plate 604. The lower end is sleeved and connected with the rear end of the left and right translation plate 604, and the rear end of the left and right translation plate 604 is provided with an oblong hole 6041. The third connecting rod 603 can slide back and forth in the oblong hole 6041. The middle end of the left and right translation plate 604 is fixedly connected with the lower end of the slider 605, and the upper end of the slider 605 is sleeved and connected with the guide rail 606. The slider 605 can slide left and right along the guide rail 606. The front end of the left and right translation plate 604 is hinged to the selection mechanism 70 to drive the selection mechanism 70 to move left and right.

[0033] The third driving motor 601 is installed at the rear end of the movable support frame 30. The rotating shaft of the third driving motor 601 is set downward, and the rotating shaft of the third driving motor 601 drives the third cam 602 to rotate in the horizontal direction during the rotation process. The third cam 602 drives the third connecting rod 603 to move during the rotation process. The connecting rod moves in the long circular hole 6041 in the front-back direction and will not affect the movement of the left and right translation plates 604. The movement of the connecting rod in the left and right directions, with the assistance of the slider 605 and the guide rail 606, causes the left and right movable plates to move left and right, thereby causing the material tray 701 to move left and right.

[0034] In a preferred embodiment, the selection mechanism 70 includes a tray 701, a vertical connecting rod 702, an upper cross bar 703, a fixing plate 704, a middle cross bar 705, and a U-shaped plate 706. The left and right sides of the tray 701 are respectively sleeved and connected to the lower ends of the vertical connecting rods 702. The upper ends of the vertical connecting rods 702 are connected to one end of the upper cross bar 703. The upper cross bar 703 is provided with a universal joint 80, so that the vertical connecting rod 702 can swing 360 degrees in the horizontal direction. The other end of the upper cross bar 703 is fixedly connected to the upper end of the fixing plate 704. The lower end of the fixing plate 704 is fixedly connected to the movable support frame 30. The middle part of the vertical connecting rod 702 is also sleeved and connected to one end of the middle cross bar 705. The other end of the middle cross bar 705 is connected to the U-shaped plate 706. The middle part of the U-shaped plate 706 is bolted to the left and right translation plate 604.

[0035] The forward and backward movement and the left and right movement of the tray 701 will drive the vertical connecting rod 702 to move. In a preferred embodiment, a universal joint 80 is provided at the socket connection between the middle cross bar 705 and the vertical connecting rod 702. When the forward and backward movement of the tray 701 drives the vertical connecting rod 702 to move forward and backward, under the action of the universal joint 80, due to the limited swing amplitude, the middle cross bar 705 will not move along, so that the left and right translation plate 604 will not move forward and backward. At the same time, the tray 701 and the second connecting rod 503 are connected by a short shaft, and a universal joint 80 is provided at the connection of the second connecting rod 503. When the tray 701 moves left and right, under the action of the universal joint 80, due to the limited swing amplitude, the second connecting rod 503 will not move left and right along. In this way, the movement of the front and rear drive mechanism and the left and right drive mechanism is relatively independent, that is, the movement of the front and rear drive mechanism and the left and right movement mechanism does not affect each other. At the same time, they can also work together to enable the tray 701 to move forward, backward, left and right at the same time.

[0036] Some rice seeds are easy to roll, such as round rice. In this case, a tray 701 with a relatively rough bottom surface or a certain blocking effect on the bottom surface can be appropriately selected to make the sorting effect better.

[0037] In order to change the movement state of the rice seeds by wind force, so that it is easier to separate the defective rice seeds from the selected rice seeds. In a preferred embodiment, the rice seed selection device 10 further includes a blower 90. The blower 90 is arranged on the movable support frame 30, and the blower 90 is located behind and on the side of the movable support frame 30.

[0038] By applying a horizontal force by the blower 90, the movement state of the lighter defective rice seeds changes more significantly, which is more conducive to being selected out.

[0039] The blower 90 of the present invention can rotate the angle and can also adjust the height. The adjustment of the angle and height is relatively common and will not be described in detail.

[0040] It should be noted that in order to ensure the smoothness and durability of the articulation, a bearing is provided on the rotating shaft. Since the cooperation between the shaft and the bearing is very common, it will not be described in detail.

[0041] Generally speaking, the tray 701 is surrounded by ribs to prevent the rice seeds from spilling out during the swinging process. Of course, in actual use, the hopper needs to be tilted upward at a certain angle, so it is also possible to have no ribs at the front end of the hopper, so that it is convenient to scoop out the bad rice seeds by hand. In order to facilitate the pouring out of the selected rice seeds, the side baffles can also be set as detachable baffles, such as plug plates, so that the rice seeds can be poured out by gravity or appropriate swinging, vibration, etc.

[0042] The material tray of the present invention can be made by traditional manual methods, for example, by weaving rattan, bamboo strips, straw ropes, etc., or it can be formed by modern extrusion, casting, etc. of rubber, metal, etc. The friction on the surface of the material tray can be caused by the bumps and grooves after weaving and the properties of the material itself, such as the bumps and grooves formed by rattan weaving and the rough properties of the rattan itself; the friction on the surface of the material tray can also be the friction caused by grooves, protrusions, etc. generated during mechanical processing. For example, if the material tray is made of rubber, the surface of the material tray can be made by carving bumps and corrugations on the rubber surface and adding its own rough properties, so that the surface has a certain friction.

[0043] The present invention starts from the agricultural biological characteristics of rice seeds, and improves the accuracy of rice seed sorting by studying the mechanism of action of vibration, table friction, and wind force on the movement characteristics of grains. The rice seed selection device of the present invention explores the influence mechanism of vibration, table friction, and wind force on the movement characteristics of rice grains on the table, such as the trajectory and speed, reveals the correlation between the movement behavior and its external characteristics and internal quality, finds out the influence of the physical property parameters of the grains on their separation and distribution behavior, obtains the regulation method and conditions of the movement behavior, separation degree, and distribution pattern of the grains, and adjusts the vibration frequency, amplitude, table shape, and wind force of the rice seed selection device to better select rice seeds and improve the rate of good rice seeds.

[0044] The seeds that can be selected by the present invention are not limited to rice, but also include wheat, corn, soybean and other seeds. Different seeds have different shapes, inertia, etc. During operation, the swing frequency, swing amplitude, wind force and table shape of the three swing mechanisms can be appropriately adjusted.

[0045] The present invention can be applied to the early stage of rice seed breeding, because the breeding of rice seeds requires the cultivation of experimental varieties for many years, so the quality requirements of rice seeds will be relatively high. At the same time, the amount of rice seeds in the early stage is not particularly large, and they can be carefully selected by the rice seed selection device of the present invention.

[0046] The present invention can also be used as a scientific experimental device to explore the effects of vibration frequency, amplitude, wind force and table friction on rice seed sorting, and to help optimize existing rice seed screening devices. For example, the traditional sieve plate cannot screen incomplete or poorly grown rice seeds. However, by exploring the effects of vibration frequency, amplitude, wind force and table friction on rice seed screening during the screening process, the structure of the sieve plate will be optimized in the later stage to explore ways and methods to achieve accurate separation of rice seeds.

[0047] The present invention can also be used as a quality classification device for nuts such as pine nuts. Currently, most nuts on the market are screened by sieve plates. However, with the refinement of consumption, if pine nuts can be screened according to size, shape, fullness, etc., consumers will have a better consumption experience and sellers will gain a better competitive advantage.

[0048] What is disclosed above is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A rice seed selection device, characterized in that: It includes a fixed support base, a movable support frame, an up-and-down swing mechanism, a front-and-back swing mechanism, a left-and-right swing mechanism, and a selection mechanism. The rear end of the fixed support base is hinged to the movable support frame, the front end of the fixed support base is fixedly connected to the fixed end of the up-and-down swing mechanism, and the movable end of the up-and-down swing mechanism is hinged to the movable support frame to drive the up-and-down swing of the movable support frame. The front end of the movable support frame is inclined upward. The movable support frame is also fixedly connected to the fixed ends of the front-and-back swing mechanism and the left-and-right swing mechanism. The movable ends of the front-and-back swing mechanism and the left-and-right swing mechanism are hinged to the selection mechanism to drive the front-and-back and left-and-right swing of the selection mechanism.

2. A rice seed selection device as claimed in claim 1, characterized in that: The up-and-down swing mechanism includes a first driving motor, a first cam, and a first connecting rod. The body of the first driving motor is fixedly connected to the fixed support base, the rotating shaft of the first driving motor is fixedly connected to one end of the first cam, the other end of the first cam is hinged to one end of the first connecting rod, and the other end of the first connecting rod is hinged to the movable support frame to drive the up-and-down swing of the movable support frame.

3. A rice seed selection device as claimed in claim 1, characterized in that: The front-and-back swing mechanism includes a second driving motor, a second cam, and a second connecting rod. The body of the second driving motor is fixedly connected to the movable support frame, the rotating shaft of the second driving motor is fixedly connected to one end of the second cam, the other end of the second cam is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the selection mechanism to drive the front-and-back swing of the selection mechanism.

4. A rice seed selection device as claimed in claim 1, characterized in that: The left-and-right swing mechanism includes a third driving motor, a third cam, a third connecting rod, a left-and-right translation plate, a slider, and a guide rail. The body of the third driving motor is fixedly connected to the movable support frame, the rotating shaft of the third driving motor is fixedly connected to one end of the third cam, the other end of the third cam is hinged to the upper end of the third connecting rod, the lower end of the third connecting rod is sleeved and connected to the rear end of the left-and-right translation plate. The rear end of the left-and-right translation plate is provided with an oblong hole, and the third connecting rod can slide back and forth in the oblong hole. The middle part of the left-and-right translation plate is fixedly connected to the lower end of the slider, the upper end of the slider is sleeved and connected to the guide rail, and the slider can slide left and right along the guide rail. The front end of the left-and-right translation plate is hinged to the selection mechanism to drive the left-and-right movement of the selection mechanism.

5. A rice seed selection device as claimed in claim 4, characterized in that: The selection mechanism includes a material tray, a vertical connecting rod, an upper cross bar, a fixing plate, a middle cross bar, and a C-shaped plate. The left and right sides of the material tray are respectively sleeved and connected to the lower ends of the vertical connecting rods. The upper ends of the vertical connecting rods are connected to one end of the upper cross bar. The upper cross bar is provided with a universal joint so that the vertical connecting rods can swing 360 degrees in the horizontal direction. The other end of the upper cross bar is fixedly connected to the upper end of the fixing plate, and the lower end of the fixing plate is fixedly connected to the movable support frame. The middle part of the vertical connecting rod is also sleeved and connected to one end of the middle cross bar, the other end of the middle cross bar is connected to the C-shaped plate, and the middle part of the C-shaped plate is connected to the left-and-right translation plate by bolts.

6. A rice seed selection device as claimed in claim 4, characterized in that: The rice seed selection device further includes a blower, and the blower is arranged on the movable support frame and is located behind and on the side of the movable support frame.

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