Grain seed selection and screening device

Abstract

The utility model relates to a grain seed selection and screening device which comprises a machine shell and a waste collecting box, the machine shell is fixedly installed at the top of the waste collecting box, a collecting part for collecting qualified grains is installed on the side wall of the machine shell, a screening part is installed in the machine shell through a fixing frame, and a blocking part is installed at the top of the collecting part. A pushing part for pushing the screened grains is mounted on the side wall of the collecting part; the grain screening device has the beneficial effects that the first air cylinder is started, the output end of the first air cylinder drives the screening plate to shake, unqualified seeds and impurity particles in grains are screened out and then fall into the waste collecting box through the through opening in the surface of the screening plate and the dredging frame, and the screened good grains are left on the top face of the screening plate; after grain screening is finished, holes in the surface of the screen plate are possibly blocked by impurities, at the moment, a second air cylinder is controlled to enable the telescopic end of the second air cylinder to drive a dredging frame to move upwards till protrusions on the top of the dredging frame eject the impurities in the holes of the screen plate out and fall into a waste collecting box, and the situation that the impurities cannot smoothly pass through the screen holes due to screen plate blocking is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of grain screening, and in particular to a grain selection and screening device. Background Art

[0002] Grain selection is an important link in agricultural production, which is directly related to the yield and quality of crops. In order to screen the harvested grains and select large and full-bodied high-quality grains as seeds for planting, a grain selection and screening device is needed.

[0003] During the use of existing grain selection and screening devices, the screening efficiency of the device is relatively low, which means that when processing a large amount of grain, it may take longer to complete the screening work, thereby reducing production efficiency; in addition, if the sieve plate is blocked, it will directly affect the screening effect of the grain. The blockage of the sieve plate will cause impurities to be unable to pass through the sieve holes smoothly, thereby affecting the screening quality, and may even cause some inferior grains to be misjudged as high-quality grains, resulting in a waste of resources.

[0004] Therefore, in order to solve the above problems, the present application provides a grain selection and screening device.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the present application provides a grain selection and screening device.

[0007] The present application provides a grain selection and screening device, comprising a casing and a waste collecting box, wherein the casing is fixedly installed on the top of the waste collecting box, a collecting part for collecting qualified grains is installed on the side wall of the casing, and a screening part is installed inside the casing through a fixed frame, a blocking part is installed on the top of the collecting part, and a pushing part for pushing the screened grains is installed on the side wall of the collecting part, the screening part comprises a sieve plate, a dredging frame, a fixed seat, a first cylinder and a second cylinder, wherein the fixed seat is installed inside the casing through the fixed frame, and the first cylinder and the second cylinder are arranged inside the fixed seat, wherein the second cylinder is located on both sides of the first cylinder, and the dredging frame is fixedly installed on the output end of the second cylinder, and the output end of the first cylinder movably passes through the dredging frame and is fixedly connected to the sieve plate.

[0008] Preferably, the collecting part includes a collecting trough, a connecting trough and a grain guiding bucket, wherein the collecting trough, the connecting trough and the grain guiding bucket are fixedly installed on the side walls of the casing and the waste collecting box in sequence from bottom to top, wherein the collecting trough is connected to the connecting trough.

[0009] Preferably, the blocking portion includes a first electric push rod, a mounting block and a baffle, wherein the first electric push rod is fixedly mounted on the top of the grain guide bucket, and the telescopic end of the first electric push rod is fixedly connected to the baffle via the mounting block.

[0010] Preferably, the pushing part includes a pushing plate, a connecting rod and a second electric pushing rod, wherein the second electric pushing rod is fixedly mounted on the two end side walls of the grain guide bucket, and the telescopic end of the second electric pushing rod is fixedly connected to the pushing plate through the connecting rod.

[0011] Preferably, the bottom surface of the grain guide bucket is provided with a through hole for the grain to pass through.

[0012] Preferably, a through opening for movement of the connecting rod is opened on the upper side wall of the casing, and an opening complementary to the push plate is opened on the side of the casing close to the grain guide bucket.

[0013] Preferably, the protrusions on the top of the dredging frame correspond one-to-one to the holes on the surface of the sieve plate.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] The grain selection and screening device starts the first cylinder through the coordinated use of the screening part, the blocking part and the pushing part, and the output end of the cylinder drives the screen plate to shake, so that unqualified seeds and impurity particles in the grains are screened out, and the impurities pass through the openings on the surface of the screen plate and the dredging frame, and then fall into the waste collection box, while the screened high-quality grains will remain on the top surface of the screen plate, thereby improving the screening efficiency; after the grain screening is completed, the holes on the surface of the screen plate may be blocked by impurities. At this time, the second cylinder is controlled so that its telescopic end drives the dredging frame to move upward until the protrusion on the top of the dredging frame pushes the impurities in the holes of the screen plate out and drops them into the waste collection box, thereby avoiding the blockage of the screen plate and the inability of the impurities to pass through the screen holes smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure in Example 1 of the present application;

[0017] Figure 2 It is a schematic diagram of the overall structure and its partial cross-section in Example 1 of the present application;

[0018] Figure 3 This is a detailed diagram of the local structure in Example 1 of the present application.

[0019] Explanation of the reference numerals: 1. Casing; 2. Waste collecting box; 3. Collecting part; 301. Collecting trough; 302. Connecting trough; 303. Grain guide bucket; 4. Screening part; 401. Screen plate; 402. Clearing frame; 403. Fixed seat; 404. First cylinder; 405. Second cylinder; 5. Sealing part; 501. First electric push rod; 502. Mounting block; 503. Baffle; 6. Pushing part; 601. Pushing plate; 602. Connecting rod; 603. Second electric push rod. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0021] Example 1: Reference Figure 1-Figure 3 A grain selection and screening device comprises a casing 1 and a waste collecting box 2, wherein the casing 1 is fixedly installed on the top of the waste collecting box 2, a collecting part 3 for collecting qualified grains is installed on the side wall of the casing 1, and a screening part 4 is installed inside the casing 1 through a fixed frame, a blocking part 5 is installed on the top of the collecting part 3, and a pushing part 6 for pushing the screened grains is installed on the side wall of the collecting part 3, the screening part 4 comprises a sieve plate 401, a dredging frame 402, a fixing seat 403, a first cylinder 404 and a second cylinder 405, wherein the fixing seat 403 is installed inside the casing 1 through the fixing frame, and a first cylinder 404 and a second cylinder 405 are arranged inside the fixing seat 403, wherein the second cylinder 405 is located on both sides of the first cylinder 404, and the output end of the second cylinder 405 is fixedly installed with the dredging frame 402, and the output end of the first cylinder 404 movably passes through the dredging frame 402 and is fixedly connected to the sieve plate 401.

[0022] The collecting part 3 includes a collecting trough 301, a connecting trough 302 and a grain guide bucket 303, wherein the collecting trough 301, the connecting trough 302 and the grain guide bucket 303 are fixedly installed on the side walls of the casing 1 and the waste collecting box 2 in sequence from bottom to top, wherein the collecting trough 301 is connected to the connecting trough 302.

[0023] The blocking part 5 includes a first electric push rod 501 , a mounting block 502 and a baffle 503 , wherein the first electric push rod 501 is fixedly mounted on the top of the grain guide bucket 303 , and the telescopic end of the first electric push rod 501 is fixedly connected to the baffle 503 through the mounting block 502 .

[0024] The pushing part 6 includes a pushing plate 601 , a connecting rod 602 and a second electric pushing rod 603 , wherein the second electric pushing rod 603 is fixedly installed on the side walls at both ends of the grain guide bucket 303 , and the telescopic end of the second electric pushing rod 603 is fixedly connected to the pushing plate 601 through the connecting rod 602 .

[0025] The bottom surface of the grain guide bucket 303 is provided with a through hole for grains to pass through.

[0026] A through hole for the movement of the connecting rod 602 is opened on the upper side wall of the casing 1, and an opening complementary to the push plate 601 is opened on the side of the casing 1 close to the grain guide bucket 303.

[0027] The protrusions on the top of the dredging frame 402 correspond one to one with the holes on the surface of the sieve plate 401 .

[0028] The implementation principle of a grain seed selection and screening device in the embodiment of the present application is:

[0029] Pour the grains to be screened onto the sieve plate 401, start the first cylinder 404, and its output end drives the sieve plate 401 to shake, so that unqualified seeds and impurity particles in the grains are screened out, and then fall into the waste collection box 2 through the opening on the surface of the sieve plate 401 and the dredging frame 402, while the screened high-quality grains will remain on the top surface of the sieve plate 401, thereby improving the screening efficiency;

[0030] Further, the first electric push rod 501 is controlled so that its telescopic end drives the baffle 503 to move upward through the mounting block 502, and the grain guide bucket 303 will be opened. At this time, the second electric push rod 603 is controlled so that its telescopic end drives the push plate 601 to move toward the grain guide bucket 303 through the connecting rod 602, and the qualified grains on the top surface of the sieve plate 401 are pushed into the grain guide bucket 303, and fall into the collecting tank 301 through the through hole on the bottom surface of the grain guide bucket 303;

[0031] After the grain screening is completed, the holes on the surface of the sieve plate 401 may be blocked by impurities. At this time, the second cylinder 405 is controlled so that its telescopic end drives the dredging frame 402 to move upward until the protrusion on the top of the dredging frame 402 pushes out the impurities in the holes of the sieve plate 401 and drops them into the waste collecting box 2, thereby preventing the sieve plate 401 from being blocked and causing the impurities to be unable to pass through the sieve holes smoothly.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A grain seed selection and screening device, comprising a housing (1) and a waste collection box (2), wherein the housing (1) is fixedly mounted on the top of the waste collection box (2), characterized in that: The side wall of the casing (1) is provided with a collecting portion (3) for collecting qualified grains, and a screening portion (4) is installed inside the casing (1) via a fixing frame, a blocking portion (5) is installed on the top of the collecting portion (3), and a pushing portion (6) for pushing the screened grains is installed on the side wall of the collecting portion (3), and the screening portion (4) comprises a screening plate (401), a dredging frame (402), a fixing seat (403), a first cylinder (404) and a second cylinder (405), The fixing seat (403) is installed inside the casing (1) through a fixing frame, and a first cylinder (404) and a second cylinder (405) are arranged inside the fixing seat (403), wherein the second cylinder (405) is located on both sides of the first cylinder (404), and a dredging frame (402) is fixedly installed at the output end of the second cylinder (405), and the output end of the first cylinder (404) movably passes through the dredging frame (402) and is fixedly connected to the screen plate (401).

2. A grain seed selection and screening device according to claim 1, characterized in that: The collecting portion (3) comprises a collecting trough (301), a connecting trough (302) and a grain guiding bucket (303), wherein the collecting trough (301), the connecting trough (302) and the grain guiding bucket (303) are fixedly mounted on the side walls of the casing (1) and the waste collecting box (2) in sequence from bottom to top, wherein the collecting trough (301) is connected to the connecting trough (302).

3. A grain seed selection and screening device according to claim 1, characterized in that: The blocking portion (5) comprises a first electric push rod (501), a mounting block (502) and a baffle (503), wherein the first electric push rod (501) is fixedly mounted on the top of the grain guide bucket (303), and the telescopic end of the first electric push rod (501) is fixedly connected to the baffle (503) via the mounting block (502).

4. A grain seed selection and screening device according to claim 1, characterized in that: The pushing part (6) includes a pushing plate (601), a connecting rod (602) and a second electric pushing rod (603), wherein the second electric pushing rod (603) is fixedly installed on the two end side walls of the grain guide bucket (303), and the telescopic end of the second electric pushing rod (603) is fixedly connected to the pushing plate (601) through the connecting rod (602).

5. A grain seed selection and screening device according to claim 2, characterized in that: The bottom surface of the grain guide bucket (303) is provided with a through hole for grains to pass through.

6. A grain seed selection and screening device according to claim 1, characterized in that: The upper side wall of the casing (1) is provided with a through opening for the movement of the connecting rod (602), and the side of the casing (1) close to the grain guide bucket (303) is provided with an opening complementary to the push plate (601).

7. The grain seed selection and screening device according to claim 1, characterized in that: The protrusions on the top of the dredging frame (402) correspond one to one with the holes on the surface of the sieve plate (401).

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