Seed screening device for agricultural production

Abstract

The utility model discloses a seed screening device for agricultural production, which relates to the technical field of seed screening and comprises a base, a support column fixedly mounted on the top surface of the base, a screening box fixedly mounted on the top surface of the support column, a main screen slidably mounted on the surface of the inner wall of the screening box, and an auxiliary screen slidably attached to the bottom surface of the main screen. According to the vibrating screen, the vibrating assembly drives the auxiliary screen, the screen moving mechanism and the main screen to vibrate synchronously, the screen moving mechanism drives the auxiliary screen to move relative to the main screen, and therefore the main screen is shielded to different degrees; according to the seed screening device, seeds can be separated from the main screen and the auxiliary screen, then the seeds can be leaked from the lower sides of the main screen and the auxiliary screen from small to large, the seeds of different sizes and grades are collected in the discharging mechanism in batches and then discharged into the material receiving box, graded screening of the seeds can be achieved, multiple screening plates do not need to be arranged for multi-stage screening, and the seed screening device has the advantages of being small in size and simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of seed screening, in particular to a seed screening device for agricultural production. Background Art

[0002] The quality of seeds after harvest is uneven. In order to ensure the quality of seeds used for planting, a screening device is needed to screen the seeds. The existing seed screening device uses a reciprocating vibrating screen plate to pick out the shriveled and deformed seeds, and the remaining seeds are kept for planting.

[0003] There will still be differences in the size of seeds screened out by the screening device at a single time, and the results of planting and harvesting seeds with smaller particles are often not as many as those of planting seeds with larger particles, so the seeds need to be further screened for grading. The existing screening devices that can perform graded screening use multiple sieve plates with different sieve holes for graded screening, and the devices are large in size and complex in structure.

[0004] For this reason, a seed screening device for agricultural production is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology. The utility model provides a seed screening device for agricultural production.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A seed screening device for agricultural production comprises a base, a supporting column is fixedly mounted on the top surface of the base, a screening box is fixedly mounted on the top surface of the supporting column, a feeding hopper is fixedly mounted on the top surface of the screening box, a discharging mechanism is fixedly mounted on the bottom surface of the screening box, a main screen is slidably mounted on the inner wall surface of the screening box, a secondary screen is slidably arranged on the bottom surface of the main screen, a screen moving mechanism for driving the secondary screen to move is arranged on the bottom surface of the main screen, a vibration assembly for driving the main screen to vibrate is arranged on the side wall of the screening box, a limiting assembly is arranged on the side of the main screen, a material receiving box is slidably mounted on the top surface of the base, and the material receiving box is arranged directly below the discharging mechanism.

[0008] Furthermore, through holes are initially formed on the surfaces of the main screen and the auxiliary screen, and the through holes on the surfaces of the main screen and the auxiliary screen have the same specifications.

[0009] Furthermore, the screen moving mechanism includes a mounting plate, which is fixedly mounted on the bottom surface of the main screen. There are four mounting plates and they are symmetrically arranged front to back and left to right. A sliding rod is fixedly mounted between two mounting plates that are opposite to each other on one side, and a threaded rod is rotatably mounted between two mounting plates that are opposite to each other on the other side. A first motor is fixedly mounted on the surface of the mounting plate, and an output end of the first motor is fixedly connected to the surface of the threaded rod. Moving blocks are fixedly mounted on the left and right sides of the auxiliary screen, and the moving block on one side is slidably mounted on the surface of the sliding rod, and the moving block on the other side is threadedly mounted on the surface of the threaded rod.

[0010] Furthermore, the vibration assembly includes a second motor and a stop block, the second motor is fixedly mounted on the side of the screening box, the output end of the second motor is fixedly connected to a rotating rod, the rotating rod is rotatably mounted between the left and right side walls of the screening box, a rotating disk is fixedly mounted on the surface of the rotating rod, the number of the rotating disks is two and they are symmetrically arranged on the left and right, a wedge-shaped top block is fixedly mounted on the side of the rotating disk, the number of the wedge-shaped top blocks is several and they are evenly distributed in a circular array around the axis of the rotating disk, the stop block is fixedly mounted on the bottom surface of the main screen, the bottom surface of the stop block is an arc-shaped surface and is arranged to abut against the rotating disk and the surface of the wedge-shaped top block.

[0011] Furthermore, the limiting assembly includes a T-shaped slider and a T-shaped slide groove, the T-shaped slider is fixedly installed on the side of the main screen, the T-shaped slide groove is opened on the side of the inner wall of the screening box, and the T-shaped slider is slidably installed on the inner wall surface of the T-shaped slide groove.

[0012] Furthermore, the discharge mechanism includes a discharge hopper, which is fixedly mounted on the bottom surface of the screening box. A discharge pipe is fixedly mounted on the bottom surface of the discharge hopper. A solenoid valve is provided on the surface of the discharge pipe. A handle is fixedly mounted on the front surface of the receiving box.

[0013] The beneficial effects of the utility model are as follows:

[0014] Seeds that need to be screened at multiple levels enter the screening box through the feed hopper, and the vibration component drives the auxiliary screen, the screen moving mechanism and the main screen to vibrate synchronously. The screen moving mechanism drives the auxiliary screen to move relative to the main screen, so that the main screen is blocked to varying degrees, and then the seeds can be leaked from the bottom of the main screen and the auxiliary screen from small to large. Seeds of different sizes are collected in batches in the discharge mechanism and then discharged into the receiving box, which can realize the graded screening of seeds without the need to set up multiple screening plates for multi-stage screening. It has the advantages of small size and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a front cross-sectional view of the three-dimensional structure of the utility model;

[0017] Figure 3 This is a bottom view of the net moving mechanism of the utility model;

[0018] Figure markings: 1. base; 2. support column; 3. screening box; 4. feed hopper; 5. main screen; 6. auxiliary screen; 7. screen moving mechanism; 701. mounting plate; 702. slide rod; 703. first motor; 704. threaded rod; 705. moving block; 8. vibration assembly; 801. second motor; 802. rotating rod; 803. rotating disk; 804. wedge-shaped top block; 805. stop block; 9. limit assembly; 901. T-shaped slider; 902. T-shaped slide groove; 10. discharge mechanism; 101. discharge hopper; 102. discharge pipe; 103. solenoid valve; 11. material receiving box; 12. handle. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figures 1 to 3 As shown, a seed screening device for agricultural production includes a base 1, a support column 2 is fixedly installed on the top surface of the base 1, a screening box 3 is fixedly installed on the top surface of the support column 2, a feed hopper 4 is fixedly installed on the top surface of the screening box 3, a discharge mechanism 10 is fixedly installed on the bottom surface of the screening box 3, a main screen 5 is slidably installed on the inner wall surface of the screening box 3, an auxiliary screen 6 is slidably arranged on the bottom surface of the main screen 5, a screen moving mechanism 7 for driving the auxiliary screen 6 to move is provided on the bottom surface of the main screen 5, a vibration component 8 for driving the main screen 5 to vibrate is provided on the side wall of the screening box 3, a limit component 9 is provided on the side of the main screen 5, a material receiving box 11 is slidably installed on the top surface of the base 1, and the material receiving box 11 is arranged directly below the discharge mechanism 10.

[0025] More specifically, the seeds that need to be screened at multiple levels enter the screening box 3 through the feed hopper 4, and the vibration assembly 8 drives the auxiliary screen 6, the screen moving mechanism 7 and the main screen 5 to vibrate synchronously. The screen moving mechanism 7 drives the auxiliary screen 6 to move relative to the main screen 5, so that the main screen 5 is blocked to varying degrees, and the seeds can be leaked from the lower sides of the main screen 5 and the auxiliary screen 6 from small to large. Seeds of different sizes are collected in batches in the discharge mechanism 10 and then discharged into the receiving box 11, so that the seeds can be graded and screened without setting up multiple screening plates for multi-stage screening. It has the advantages of small size and simple structure.

[0026] Through holes begin to appear on the surfaces of the main screen 5 and the auxiliary screen 6, and the specifications of the through holes on the surfaces of the main screen 5 and the auxiliary screen 6 are the same.

[0027] Specifically, the auxiliary screen 6 is driven to move on the bottom surface of the main screen 5 by the screen moving mechanism 7, and the overlap between the through holes on the surface of the auxiliary screen 6 and the through holes on the surface of the main screen 5 is adjusted, thereby changing the size of seeds that can pass through the overlapping part of the upper and lower through holes, thereby realizing graded screening of seeds without using multiple screening plates.

[0028] The screen moving mechanism 7 includes a mounting plate 701, which is fixedly mounted on the bottom surface of the main screen 5. There are four mounting plates 701, which are symmetrically arranged front to back and left to right. A sliding rod 702 is fixedly mounted between two mounting plates 701 that are opposite to each other on one side, and a threaded rod 704 is rotatably mounted between two mounting plates 701 that are opposite to each other on the other side. A first motor 703 is fixedly mounted on the surface of the mounting plate 701, and the output end of the first motor 703 is fixedly connected to the surface of the threaded rod 704. Moving blocks 705 are fixedly mounted on the left and right sides of the auxiliary screen 6. The moving block 705 on one side is slidably mounted on the surface of the sliding rod 702, and the moving block 705 on the other side is threadedly mounted on the surface of the threaded rod 704.

[0029] Specifically, the output end of the first motor 703 drives the threaded rod 704 to rotate. Since the auxiliary screen 6 is fixedly connected between the left and right moving blocks 705, and the auxiliary screen 6 can only slide back and forth, when the threaded rod 704 rotates, the moving block 705 threadedly connected on its surface will move back and forth, driving the auxiliary screen 6 and the threaded rod 704 on the other side to move back and forth together, so that the through holes on the surface of the auxiliary screen 6 and the through holes on the surface of the main screen 5 are misaligned, thereby adjusting the overlapping area of ​​the through holes, and then filtering out seeds of different sizes in stages.

[0030] The vibration assembly 8 includes a second motor 801 and a stop block 805. The second motor 801 is fixedly installed on the side of the screening box 3. The output end of the second motor 801 is fixedly connected to a rotating rod 802. The rotating rod 802 is rotatably installed between the left and right side walls of the screening box 3. A rotating disk 803 is fixedly installed on the surface of the rotating rod 802. There are two rotating disks 803 and they are symmetrically arranged on the left and right. A wedge-shaped top block 804 is fixedly installed on the side of the rotating disk 803. There are several wedge-shaped top blocks 804 and they are evenly distributed in a circular array around the axis of the rotating disk 803. The stop block 805 is fixedly installed on the bottom surface of the main screen 5. The bottom surface of the stop block 805 is an arc-shaped surface and is arranged to abut against the surfaces of the rotating disk 803 and the wedge-shaped top block 804.

[0031] Specifically, the output end of the second motor 801 drives the rotating rod 802 and the rotating disk 803 to rotate synchronously. Since the wedge-shaped top block 804 is fixedly installed on the side of the rotating disk 803, the rotation of the rotating disk 803 will drive several wedge-shaped top blocks 804 to rotate synchronously. Since the stop block 805 is set to abut against the surface of the rotating disk 803 and the wedge-shaped top block 804, when the rotating disk 803 and the wedge-shaped top block 804 rotate, the side of the rotating disk 803 and the surface of the wedge-shaped top block 804 take turns to abut against the stop block 805, so that the stop block 805 is lifted and fell back and forth, thereby driving the main screen 5 fixedly connected to the stop block 805 to vibrate.

[0032] The limiting assembly 9 includes a T-shaped slider 901 and a T-shaped slide groove 902 . The T-shaped slider 901 is fixedly installed on the side of the main screen 5 , and the T-shaped slide groove 902 is opened on the inner wall side of the screening box 3 . The T-shaped slider 901 is slidably installed on the inner wall surface of the T-shaped slide groove 902 .

[0033] Specifically, the T-shaped slider 901 is lifted and slid in the T-shaped slide groove 902 to limit the main screen 5 so that the main screen 5 can remain stable and reliable when it is lifted and vibrated under the action of the vibration component 8.

[0034] The discharge mechanism 10 includes a discharge hopper 101 , which is fixedly mounted on the bottom of the screening box 3 , a discharge pipe 102 is fixedly mounted on the bottom of the discharge hopper 101 , a solenoid valve 103 is provided on the surface of the discharge pipe 102 , and a handle 12 is fixedly mounted on the front of the receiving box 11 .

[0035] Specifically, the morphological characteristics of the discharge hopper 101 are utilized to make the seeds screened by the main screen 5 and the auxiliary screen 6 gather at the bottom of the discharge hopper 101 and the upper end of the discharge pipe 102. After a single screening is completed, the solenoid valve 103 is opened to discharge the seeds of similar sizes into the receiving box 11, and then the solenoid valve 103 is closed, and the overlap of the through holes on the surfaces of the main screen 5 and the auxiliary screen 6 is adjusted to perform the next level of seed screening. At this time, the handle 12 can be grasped to slide the receiving box 11 out from the top surface of the base 1, and the seeds in the receiving box 11 can be transferred to the subsequent processing equipment, and then the receiving box 11 can be placed on the top surface of the base 1 again to load the seeds screened by the next level.

[0036] In summary: seeds that need to undergo multi-stage screening enter the screening box 3 through the feed hopper 4, and the vibration component 8 drives the auxiliary screen 6, the screen moving mechanism 7 and the main screen 5 to vibrate synchronously. The screen moving mechanism 7 drives the auxiliary screen 6 to move relative to the main screen 5, so that the main screen 5 is blocked to varying degrees, and then the seeds can be leaked from the lower sides of the main screen 5 and the auxiliary screen 6 from small to large. Seeds of different sizes are collected in batches in the discharge mechanism 10 and then discharged into the receiving box 11, which can realize the graded screening of seeds without setting up multiple screening plates for multi-stage screening, and has the advantages of small size and simple structure.

[0037] 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 the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A seed screening device for agricultural production, characterized in that: The invention comprises a base (1), a support column (2) being fixedly mounted on the top surface of the base (1), a screening box (3) being fixedly mounted on the top surface of the support column (2), a feed hopper (4) being fixedly mounted on the top surface of the screening box (3), a discharge mechanism (10) being fixedly mounted on the bottom surface of the screening box (3), a main screen (5) being slidably mounted on the inner wall surface of the screening box (3), a secondary screen (6) being slidably mounted on the bottom surface of the main screen (5), a screen moving mechanism (7) being arranged on the bottom surface of the main screen (5) for driving the secondary screen (6) to move, a vibration assembly (8) being arranged on the side wall of the screening box (3) for driving the main screen (5) to vibrate, a limit assembly (9) being arranged on the side surface of the main screen (5), a material receiving box (11) being slidably mounted on the top surface of the base (1), and the material receiving box (11) being arranged directly below the discharge mechanism (10).

2. A seed screening device for agricultural production according to claim 1, characterized in that: The surfaces of the main screen (5) and the auxiliary screen (6) both begin to have through holes, and the specifications of the through holes on the surfaces of the main screen (5) and the auxiliary screen (6) are the same.

3. The seed screening device for agricultural production according to claim 1, characterized in that: The screen moving mechanism (7) comprises a mounting plate (701), wherein the mounting plate (701) is fixedly mounted on the bottom surface of the main screen (5), the number of the mounting plates (701) is four and they are symmetrically arranged front to back and left to right, a sliding rod (702) is fixedly mounted between two mounting plates (701) that are opposite to each other on one side, and a threaded rod (704) is rotatably mounted between two mounting plates (701) that are opposite to each other on the other side, a first motor (703) is fixedly mounted on the surface of the mounting plate (701), and an output end of the first motor (703) is fixedly connected to the surface of the threaded rod (704), and moving blocks (705) are fixedly mounted on the left and right sides of the auxiliary screen (6), the moving block (705) on one side is slidably mounted on the surface of the sliding rod (702), and the moving block (705) on the other side is threadedly mounted on the surface of the threaded rod (704).

4. The seed screening device for agricultural production according to claim 1, characterized in that: The vibration assembly (8) comprises a second motor (801) and a stopper (805), wherein the second motor (801) is fixedly mounted on a side of the screening box (3), the output end of the second motor (801) is fixedly connected to a rotating rod (802), the rotating rod (802) is rotatably mounted between the left and right side walls of the screening box (3), a rotating disk (803) is fixedly mounted on the surface of the rotating rod (802), the number of the rotating disks (803) is two and they are symmetrically arranged on the left and right, a wedge-shaped top block (804) is fixedly mounted on the side of the rotating disk (803), the number of the wedge-shaped top blocks (804) is several and they are evenly distributed in an annular array around the axis of the rotating disk (803), the stopper (805) is fixedly mounted on the bottom surface of the main screen (5), the bottom surface of the stopper (805) is an arc-shaped surface and is arranged to abut against the surfaces of the rotating disk (803) and the wedge-shaped top block (804).

5. The seed screening device for agricultural production according to claim 1, characterized in that: The limiting assembly (9) comprises a T-shaped slider (901) and a T-shaped slide groove (902), wherein the T-shaped slider (901) is fixedly mounted on the side of the main screen (5), the T-shaped slide groove (902) is opened on the side of the inner wall of the screening box (3), and the T-shaped slider (901) is slidably mounted on the inner wall surface of the T-shaped slide groove (902).

6. The seed screening device for agricultural production according to claim 1, characterized in that: The discharge mechanism (10) comprises a discharge hopper (101), the discharge hopper (101) is fixedly mounted on the bottom surface of the screening box (3), a discharge pipe (102) is fixedly mounted on the bottom surface of the discharge hopper (101), a solenoid valve (103) is provided on the surface of the discharge pipe (102), and a handle (12) is fixedly mounted on the front surface of the material receiving box (11).

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