Seed screening device for agricultural cultivation

Abstract

The utility model relates to the technical field of agricultural equipment, in particular to a seed screening device for agricultural cultivation. According to the technical scheme, a switch is installed on a base, a guide partition plate is arranged in a screen frame, the interior of the screen frame is divided into a temporary storage cavity and a containing cavity through the guide partition plate, a through hole is formed in the guide partition plate in a penetrating mode, the temporary storage cavity is communicated with the containing cavity through the through hole, a screen mesh is embedded in the screen frame, and the screen mesh is arranged in the temporary storage cavity. A vibrating motor is installed on the lower surface of the screen frame, supporting frames are installed at the two ends of the screen frame, an electric push rod is installed in the base, and the supporting frames are located at the output end of the electric push rod. The conveying assembly is provided with a bottom plate, and a conveying belt is rotationally installed on the bottom plate. According to the seed screening device, efficient and uniform screening of seeds is achieved in a vibration screening and reciprocating lifting enhancement mode. The device is compact in structure, easy and convenient to operate and high in adaptability, and has high practical value and application prospects.

Description

Technical Field

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

[0002] In the agricultural planting field, to improve the germination rate of crop planting, seeds need to be screened before sowing to filter out shriveled seeds and retain plump, high-quality seeds. This improves the germination rate after planting and reduces the problem of low germination rate caused by shriveled seeds. Current seed screening methods use manual selection or sieve screening, which is time-consuming and labor-intensive, with low screening efficiency. It is only suitable for screening small amounts of seeds and is not suitable for screening large quantities of seeds for agricultural planting.

[0003] A search revealed patent publication number CN201721429951.6, which discloses a slow-down tumbling seed screening device. While this device installs slow-down tumbling levers on the surfaces of the dust removal and seed selection screens to slow the seeds' tumbling and prolong their screening time on the dust removal screen, the seeds tumble and fall as they roll over the levers, redispersing them and preventing accumulation and inadequate screening. The dust removal screen removes dust and impurities from the seeds, while the seed selection screen facilitates the separation of high-quality seeds from shriveled seeds. The cam rotates, causing the seed screening box to swing left and right on the slide rails, facilitating seed screening by the dust removal and seed selection screens. Shock-absorbing rubber pads dampen vibrations, reducing vibration and noise generated during seed screening. However, this device only screens the seeds by pushing the screening box through the screens using the cam, resulting in low screening efficiency and requiring multiple screening passes to achieve the desired separation effect. Multiple screening cycles not only increase time and energy consumption but may also cause additional damage to the seeds. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a seed screening device for agricultural cultivation, which solves the problems raised in the background art.

[0005] The utility model solves the above-mentioned technical problems as follows:

[0006] A seed screening device for agricultural cultivation comprises a base, a screen frame is mounted on the base, and a conveying assembly is provided on the base below the screen frame;

[0007] A switch is installed on the base, a guide partition is provided inside the screen frame, the screen frame is divided into a temporary storage chamber and a receiving chamber by the guide partition, a through hole is penetrated through the guide partition, the temporary storage chamber and the receiving chamber are connected through the through hole, a screen is inlaid on the screen frame, a vibration motor is installed on the lower surface of the screen frame, support frames are installed at both ends of the screen frame, an electric push rod is installed in the base, and the support frame is located at the output end of the electric push rod;

[0008] The conveying assembly is provided with a bottom plate, a conveying belt is rotatably mounted on the bottom plate, a conveying motor is mounted on one end of the conveying assembly, and the conveying motor is transmission-connected to the conveying belt.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the accommodating cavity is hourglass-shaped, and the screen is located in the middle of the accommodating cavity.

[0011] The beneficial effects of adopting the above further scheme are:

[0012] The hourglass-shaped holding chamber design facilitates even seed distribution and rolling across the screen. As seeds fall into the holding chamber from above, they naturally follow the hourglass shape and converge toward the center of the screen, increasing their contact with the screen. This design makes the screening process more efficient, as more seeds can be screened simultaneously. Because the screen is located in the center of the holding chamber, the seeds pass through the screen multiple times during rolling, increasing the thoroughness of the screening process. This multiple screening effect helps to more effectively separate impurities and undesirable seeds, improving screening accuracy and efficiency.

[0013] Furthermore, the two ends of the screen frame are driven to move up and down reciprocatingly by an electric push rod, so that the seeds in the screen frame are repeatedly screened through the screen.

[0014] The beneficial effects of adopting the above further scheme are:

[0015] The electric push rod drives the screen frame to rise and fall back and forth, continuously moving the seeds inside the frame up and down, increasing the contact between the seeds and the screen. This repeated screening process helps to more effectively separate impurities and undesirable seeds, thereby improving screening accuracy and efficiency. The reciprocating movement of the screen frame not only increases the number of seed screenings but also ensures a more even distribution of seeds on the screen. This helps prevent seed accumulation or blind spots on the screen, ensuring uniform and consistent screening. The automatic raising and lowering of the screen frame by the electric push rod reduces the frequency and intensity of manual intervention. This not only reduces operator workload but also increases the automation level of the screening process, making it smoother and more efficient.

[0016] Furthermore, the screen frame is provided with a guide plate at the bottom end of the screen, and the seeds sieved through the screen are guided by the guide plate and fall onto the conveying assembly.

[0017] The beneficial effects of adopting the above further scheme are:

[0018] The guide plate design ensures that seeds, after being screened, flow in an orderly manner toward the conveyor assembly. This guidance prevents disorderly seed scattering, making seed collection and processing more efficient and organized. Directing the screened seeds directly to the conveyor assembly via the guide plate reduces seed residence time and accumulation, thereby improving screening efficiency. This helps ensure the continuity and stability of the screening process. The guide plate also facilitates seed collection. Screened seeds fall directly along the guide plate into the conveyor assembly, eliminating manual collection or the use of additional equipment, reducing labor intensity and costs.

[0019] Furthermore, there are two vibration motors in total, and the two vibration motors are symmetrically distributed on the screen frame.

[0020] The beneficial effects of adopting the above further scheme are:

[0021] The two vibrating motors operate simultaneously, generating a stronger vibration force that evenly distributes the seeds across the screen frame and mesh. This uniform vibration helps disperse and roll the seeds across the mesh, improving screening efficiency and accuracy. The symmetrical placement of the vibrating motors ensures the screen frame remains balanced during vibration, avoiding uneven screening caused by uneven vibration. This design ensures more uniform seed distribution across the mesh, helping to reduce the presence of impurities and poor-quality seeds.

[0022] Furthermore, the conveying motor, the vibration motor and the electric push rod are connected to and disconnected from an external power source through a switch.

[0023] The beneficial effects of adopting the above further scheme are:

[0024] The operator can easily start and stop the conveyor motor, vibrator motor, and electric actuator using the on / off control. This simple and intuitive operation method does not require complex operating skills or professional knowledge, reducing the difficulty of operation. The on / off control design allows the operator to quickly cut off the power in an emergency, ensuring the safety of the equipment and operators. The on / off control allows the conveyor motor, vibrator motor, and electric actuator to be turned off when not needed, avoiding unnecessary energy waste.

[0025] The utility model provides a seed screening device for agricultural cultivation, which has the following beneficial effects:

[0026] The device cleverly combines the screening and conveying functions together, and delivers the screened seeds in a timely manner through the conveying component, thus realizing the integrated operation of screening and conveying and improving work efficiency.

[0027] The two vibration motors installed on the lower surface of the screen frame can generate vibration, which helps to disperse and roll the seeds on the screen, thereby improving the screening effect and effectively separating high-quality seeds from impurities and poor-quality seeds.

[0028] The electric push rod drives the two ends of the screen frame to move up and down, so that the seeds in the screen frame can be screened repeatedly through the screen, thereby enhancing the uniformity and thoroughness of the screening and ensuring the screening quality.

[0029] The hourglass-shaped chamber facilitates the collection and rolling of seeds on the screen, further improving screening efficiency. This design also helps reduce seed accumulation and clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0031] In the attached figure:

[0032] Figure 1 This is a schematic diagram of the rear view of the present invention;

[0033] Figure 2 This is a schematic diagram of the main appearance of the utility model;

[0034] Figure 3 This is a schematic diagram of the appearance of the screen frame of the present invention when viewed from above.

[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0036] 1. Conveying assembly; 101. Bottom plate; 102. Conveyor belt; 103. Conveying motor; 2. Base; 3. Switch; 4. Vibration motor; 5. Screen frame; 501. Support frame; 502. Through hole; 503. Guide partition; 504. Temporary storage chamber; 505. Accommodating chamber; 506. Screen; 507. Guide plate; 508. Electric push rod. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See also Figures 1 to 3 As shown, the embodiment provided by the utility model:

[0039] Example 1

[0040] The seed screening device for agricultural cultivation includes a base 2, a screen frame 5 is mounted on the base 2, a conveying assembly 1 is provided on the base 2 below the screen frame 5, the conveying assembly 1 is provided with a bottom plate 101, a conveyor belt 102 is rotatably mounted on the bottom plate 101, a conveying motor 103 is installed at one end of the conveying assembly 1, and the conveying motor 103 is transmission-connected to the conveyor belt 102, so that the screened seeds are delivered through the conveying assembly 1.

[0041] Example 2

[0042] In order to repeatedly screen the seeds in the screen frame 5 through the screen 506, for example, Figures 1 to 3As shown, the present invention further includes a switch 3 mounted on the base 2. The switch 3 controls the connection and disconnection of the conveying motor 103, the vibrating motor 4, and the electric push rod 508 to an external power source. This switch 3 control allows the operator to easily start and stop the conveying motor 103, the vibrating motor 4, and the electric push rod 508. This simple and straightforward operation method requires no complex skills or expertise, reducing operational difficulty. The switch 3 control design allows the operator to quickly cut off the power supply in an emergency, ensuring the safety of the equipment and the operator. Furthermore, the switch 3 control shuts down the motor and push rod when not in use, avoiding energy waste. A guide partition 503 is provided within the sieve frame 5. The guide partition 503 divides the sieve frame 5 into a temporary storage chamber 504 and a storage chamber 505. The storage chamber 505 is hourglass-shaped, with a screen 506 located in the center. The hourglass-shaped storage chamber 505 optimizes the distribution and rolling path of seeds on the screen 506. When seeds fall from above, they naturally converge to the center of the screen 506 along the hourglass shape, significantly increasing the frequency of contact between the seeds and the screen surface. This design promotes the improvement of screening efficiency and enables more seeds to be effectively screened in the same period of time. The screen 506 is set in the center to ensure that the seeds pass through the screen surface multiple times when rolling, which strengthens the thoroughness of the screening and effectively improves the separation accuracy and screening efficiency of impurities and bad seeds. A through hole 502 is opened through the guide partition 503, and the temporary storage chamber 504 and the accommodating chamber 505 are connected through the through hole 502. The screen frame 5 is inlaid with a screen 506, and the screen frame 5 is provided with a guide plate 507 at the bottom end of the screen 506. The seeds sieved through the screen 506 are guided by the guide plate 507 to fall onto the conveying component 1. The design of the guide plate 507 ensures that the seeds after screening flow to the conveying component 1 in an orderly manner, effectively avoiding the disorderly scattering of seeds and improving the efficiency and order of seed collection and processing. The guide plate 507 directly guides the sieved seeds to the conveying assembly 1, shortening the seed residence time and reducing accumulation, thereby improving the screening efficiency and ensuring the continuity and stability of the screening process. The guide plate 507 simplifies the seed collection process, allowing the seeds to enter the conveying assembly 1 directly along the guide plate 507, avoiding manual collection or the use of additional equipment, reducing labor intensity and cost. The lower surface of the screen frame 5 is mounted with a vibration motor 4. There are two vibration motors 4, and the two vibration motors 4 are symmetrically distributed on the screen frame 5. The two vibration motors 4 operate synchronously, generating a stronger vibration force, so that the seeds on the screen frame 5 and the screen 506 are subjected to more uniform vibration. This uniform vibration promotes the dispersion and rolling of the seeds on the screen surface, improving the screening efficiency and accuracy.The symmetrical distribution of the vibration motor 4 ensures the balance of the screen frame 5 during the vibration process, avoiding the problem of uneven screening caused by uneven vibration, making the seed screening process on the screen surface more uniform, and reducing the residue of impurities and poor quality seeds. Support frames 501 are installed at both ends of the screen frame 5, and an electric push rod 508 is installed in the base 2. The support frame 501 is located at the output end of the electric push rod 508. The electric push rod 508 drives the two ends of the screen frame 5 to perform reciprocating lifting and lowering, thereby allowing the seeds in the screen frame 5 to be repeatedly screened through the screen 506. The electric push rod 508 drives the screen frame 5 to perform reciprocating lifting and lowering motion, prompting the seeds in the screen to continuously move up and down, further increasing the contact opportunities between the seeds and the screen surface. This repeated screening mechanism significantly improves the separation effect of impurities and poor quality seeds, thereby enhancing the accuracy and efficiency of screening. The reciprocating lifting of the screen frame 5 not only increases the number of screening times, but also promotes the uniform distribution of seeds on the screen surface, avoiding accumulation or blind spots, and ensuring the uniformity and consistency of the screening process. The automatic lifting of the electric push rod 508 reduces manual intervention, reduces labor intensity, improves the automation level of the screening process, and makes the screening process smoother and more efficient.

[0043] Working principle:

[0044] The seeds are put into the temporary storage chamber 504 of the screen frame 5 by some means (such as manual or automatic feeding system). The seeds are stored in the accommodating chamber 505 and are ready to enter the screening process.

[0045] When switch 3 is turned on, vibration motor 4 begins to operate, generating vibrations. These vibrations are transmitted to the seeds within the screen frame 5, causing them to continuously roll and disperse on the screen 506. The aperture of screen 506 is designed to separate seeds of different sizes or impurities. Smaller impurities or undesirable seeds pass through screen 506 and fall onto conveyor assembly 1 below, while larger seeds remain on screen 506 and continue to roll and be screened.

[0046] At the same time, electric push rods 508 begin to operate, driving the two ends of the screen frame 5 to move back and forth. This lifting and lowering motion causes the seeds in the screen frame 5 to continuously move up and down, further enhancing the uniformity and thoroughness of the screening. Through multiple lifting and rolling screening, impurities and undesirable seeds are more effectively separated.

[0047] After screening, the high-quality seeds remaining on the screen 506 are manually collected. At the same time, the impurities and poor-quality seeds that fall through the screen 506 are transported out of the device by the conveyor belt 102 of the conveying component 1. The conveying motor 103 provides power for the conveyor belt 102 to ensure that it can transport materials smoothly and continuously.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0049] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A seed screening device for agricultural cultivation, comprising a base (2), a screen frame (5) mounted on the base (2), and a conveying assembly (1) located below the screen frame (5) on the base (2), characterized in that: A switch (3) is installed on the base (2), a guide partition (503) is provided inside the screen frame (5), the screen frame (5) is divided into a temporary storage chamber (504) and a receiving chamber (505) by the guide partition (503), a through hole (502) is opened through the guide partition (503), the temporary storage chamber (504) and the receiving chamber (505) are communicated through the through hole (502), a screen (506) is inlaid on the screen frame (5), a vibration motor (4) is installed on the lower surface of the screen frame (5), support frames (501) are installed at both ends of the screen frame (5), an electric push rod (508) is installed in the base (2), and the support frame (501) is located at the output end of the electric push rod (508); The conveying assembly (1) is provided with a base plate (101), a conveying belt (102) is rotatably mounted on the base plate (101), a conveying motor (103) is mounted at one end of the conveying assembly (1), and the conveying motor (103) is transmission-connected to the conveying belt (102).

2. The seed screening device for agricultural cultivation according to claim 1, characterized in that: The accommodating chamber (505) is hourglass-shaped, and the screen (506) is located in the middle of the accommodating chamber (505).

3. The seed screening device for agricultural cultivation according to claim 1, characterized in that: The electric push rod (508) drives the two ends of the screen frame (5) to move up and down, thereby allowing the seeds in the screen frame (5) to be repeatedly screened through the screen (506).

4. The seed screening device for agricultural cultivation according to claim 1, characterized in that: The screen frame (5) is provided with a guide plate (507) at the bottom end of the screen (506), and the seeds sieved through the screen (506) are guided by the guide plate (507) and fall onto the conveying assembly (1).

5. The seed screening device for agricultural cultivation according to claim 1, characterized in that: There are two vibration motors (4) in total, and the two vibration motors (4) are symmetrically distributed on the screen frame (5).

6. The seed screening device for agricultural cultivation according to claim 1, characterized in that: The conveying motor (103), the vibration motor (4) and the electric push rod (508) are controlled to be on and off with an external power source via a switch (3).

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