Seed particle screening equipment for corn planting

Abstract

The utility model relates to the technical field of seed screening, and provides a corn planting seed particle screening device which comprises a base frame and two guide rods symmetrically arranged on the upper portion of the base frame, a screen frame is arranged between the two guide rods in a sliding mode, and elastic pieces are arranged between the screen frame and the two guide rods. A baffle is further rotationally arranged on the screen frame. The blanking hopper is fixedly arranged at the upper part of the base frame; the quantitative rotating hopper is rotationally arranged in the blanking hopper; and the servo motor is arranged on the base frame. The quantitative rotary hopper is rotatably arranged in the blanking hopper, and the servo motor is matched with the driving of the belt pulley and the transmission belt, so that the feeding amount of each time is accurately controlled, the blockage problem caused by excessive seeds is avoided, the continuity and the stability in the screening process are ensured, the screening operation is more uniform and effective, and the screening efficiency is improved. And the working efficiency of the whole screening process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seed screening, in particular to seed particle screening equipment for corn planting. Background Art

[0002] Corn, also known as maize, corn, or maize, is an important food and feed crop worldwide. It is not only consumed by humans but also serves as a primary ingredient in animal feed and has a wide range of industrial applications, such as the production of biofuel ethanol. In corn breeding, seed screening is a critical step in ensuring sowing quality, which helps improve crop yield and quality.

[0003] Chinese utility model patent CN221789997U discloses a particle screening machine for corn seeds. The screen drum of the device is rotatably installed in a shell, forming a storage chamber between the screen drum and the shell, and the screen holes of the screen drum are gradually increased. The rotating shaft rotates to drive the spiral blade to rotate to transport the corn, and the annular partition plate cooperates with the annular screen to realize the screening of corn seeds, which solves the low screening efficiency and poor screening effect of seed screening in the existing technology; however, in actual use, the device still has shortcomings. Since it adopts a cylindrical closed structure to transport corn seeds and the feed port lacks an effective limit control mechanism, when excessive seeds are poured in at one time, it is easy to cause blockage between the screen drum and the shell, thereby interrupting the normal screening process. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a seed particle screening device for corn planting that can quantitatively transport corn seeds.

[0005] Technical solution: A seed particle screening equipment for corn planting, including a base frame and two guide rods symmetrically arranged on the upper part of the base frame, a screen frame is slidably arranged between the two guide rods, and elastic parts are arranged between the screen frame and the two guide rods, and a baffle is rotatably arranged on the screen frame; it also includes a lower hopper fixedly arranged on the upper part of the base frame, and a quantitative rotary bucket rotatably arranged in the lower hopper; it also includes a servo motor installed on the base frame, a cam is fixedly arranged on the end of the output shaft of the servo motor, and the side wall of the screen frame is provided with a contact block abutting the cam.

[0006] In a preferred embodiment of the present invention, the screen frame is in an inclined shape as a whole.

[0007] In a preferred embodiment of the present invention, a first collecting frame is hung on the lower part of the screen frame, a second collecting frame is provided on the lower part of the base frame, and the opening of the screen frame is inclined toward the second collecting frame.

[0008] In a preferred embodiment of the present invention, a pull-out plate is slidably provided in the lower hopper.

[0009] In a preferred embodiment of the present invention, a first pulley is provided at the end of the quantitative rotary bucket, a second pulley is provided on the output shaft of the servo motor, and a transmission belt is laid between the first pulley and the second pulley.

[0010] In a preferred embodiment of the present invention, a guide frame is provided at the opening of the screen frame, a latch is slidably provided in the guide frame, and an insert ring matching the latch is provided on the baffle.

[0011] Compared with the prior art, the utility model has the following advantages: the utility model adopts a quantitative rotary bucket rotatably arranged in the lower hopper, and realizes precise control of the feeding amount each time through the drive of a servo motor in conjunction with a pulley and a transmission belt, which not only avoids the blockage problem caused by excessive seeds, but also ensures the continuity and stability of the screening process, making the screening operation more uniform and effective, and improving the work efficiency of the entire screening process; the design of adding a pull-out plate in the lower hopper allows the user to flexibly adjust or stop the feeding process according to actual conditions, thereby enhancing the adaptability and controllability of the entire equipment; the inclined screen frame is conducive to the natural sliding of large-particle seeds that have not been screened out to the second collection frame in the designated position, which is convenient for subsequent centralized processing; the cam is driven by the motor to rotate and reciprocately hit the contact block, and then cooperated with the elastic part to realize reciprocating translation of the screen frame, so that the seeds falling into the screen frame can be spread flat, and small-particle seeds can be efficiently separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the lower hopper of the utility model.

[0014] Figure 3 It is a structural diagram of the quantitative rotary bucket and the pull-out plate of the utility model.

[0015] Figure 4 It is a partial structural diagram of the utility model.

[0016] Figure 5 It is a structural schematic diagram of the screen frame of the present utility model.

[0017] Among them, the above-mentioned drawings include the following figure marks: 1. base frame, 11. guide rod, 12. elastic part, 2. screen frame, 21. baffle, 3. lower hopper, 31. quantitative rotary bucket, 311. first pulley, 32. pull-out plate, 4. first collecting frame, 41. second collecting frame, 5. servo motor, 51. second pulley, 52. cam, 53. contact block, 6. guide frame, 61. pin, 62. insert ring. DETAILED DESCRIPTION

[0018] Although the present invention may be described with respect to a specific application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those skilled in the art will recognize that terms such as "above," "below," "upwardly," and "downwardly" are used to describe the drawings and are not intended to limit the scope of the present invention as defined by the appended claims. Numerical designations such as "first" and "second" are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0019] like Figure 1 As shown, an embodiment of the utility model provides a seed particle screening device for corn planting, including a base frame 1, two guide rods 11 are symmetrically arranged on the upper part of the base frame 1, a screen frame 2 is slidingly arranged between the two guide rods 11 and is arranged obliquely to the lower right, and an elastic member 12 is arranged between the right end of the screen frame 2 and the two guide rods 11, which pushes the screen frame 2 to move horizontally along the guide rods 11, so that the corn seeds inside it can be spread flat, so that small-particle seeds and impurities such as mud and sand can be filtered out downward, while large-particle seeds will remain in the screen frame 2, and a baffle 21 is rotatably arranged on the right end of the screen frame 2. Initially, the baffle 21 blocks the right end outlet of the screen frame 2 to prevent the seeds from sliding to the right. After the screening is completed, the baffle 21 is rotated open to take out the screened large-particle corn seeds.

[0020] like Figure 5 As shown, in an embodiment of the present utility model, a guide frame 6 is provided at the opening of the screen frame 2, and a latch 61 is slidingly provided in the guide frame 6. A plug ring 62 matching the latch 61 is provided on the baffle 21. When the screen frame 2 is translated left and right, the latch 61 can be inserted into the plug ring 62 to achieve position limiting and blocking of the baffle 21, so that it cannot be opened at will, thereby avoiding leakage of corn seeds during the screening process. After the subsequent screening is completed, the latch 61 is pulled out and the baffle 21 can be smoothly opened.

[0021] like Figure 1-Figure 3 As shown in the embodiment of the present utility model, a lower hopper 3 is also installed on the upper part of the base frame 1, and a quantitative rotary bucket 31 is rotatably provided in the lower hopper 3. Figure 3 As shown, the quantitative rotary bucket 31 is evenly divided into four compartments. Figure 2As shown, every time the quantitative rotary bucket 31 rotates 90 degrees clockwise, the corn seeds in one compartment will be dumped to the right into the screen frame 2, and the corn seeds in the lower hopper 3 will continue to fill the next compartment. Figure 2 As shown, a pull-out plate 32 is slidably provided in the lower hopper 3. When the pull-out plate 32 is inserted into the lower hopper 3, it can block the compartment of the quantitative rotary bucket 31, so that the corn seeds cannot fall.

[0022] like Figure 4 and Figure 5 As shown, a servo motor 5 is installed on the front side of the base frame 1, and a cam 52 is fixedly provided on the end of the output shaft of the servo motor 5, and a contact block 53 is provided on the front side wall of the screen frame 2 to abut against the cam 52. When the servo motor 5 is started, it can drive the cam 52 to rotate clockwise, and the tip of the cam 52 then pushes the contact block 53 and the screen frame 2 as a whole to move horizontally to the right. At this time, the elastic member 12 is in a compressed state. When the cam 52 rotates to disengage from the contact block 53, the elastic member 12 recovers and pushes the screen frame 2 as a whole to the left. This reciprocating motion can make the screen frame 2 continue to reciprocate left and right, so that the corn seeds inside it are spread out. Figure 4 As shown, a first collecting frame 4 is hung on the lower part of the screen frame 2. When the screen frame 2 moves back and forth, the first collecting frame 4 will move with it, and the small-particle seeds and impurities such as mud and sand in the screen frame 2 will be screened into the first collecting frame 4. A second collecting frame 41 is detachably provided on the right side of the lower part of the base frame 1. The opening of the screen frame 2 is inclined toward the second collecting frame 41. When the baffle 21 is rotated to open, the large-particle corn seeds that have been screened will slide rightward along the inclined screen frame 2 into the second collecting frame 41.

[0023] like Figure 1 、 Figure 3 and Figure 5 As shown, a first pulley 311 is provided at the end of the quantitative rotary bucket 31, a second pulley 51 is provided on the output shaft of the servo motor 5, and a transmission belt is laid between the first pulley 311 and the second pulley 51. When the servo motor 5 is started and drives the screen frame 2 to move back and forth left and right through the cam 52, the quantitative rotary bucket 31 can be driven to rotate under the transmission of the first pulley 311, the second pulley 51 and the transmission belt.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A seed particle screening device for corn planting, characterized in that: The invention comprises a base frame (1) and two guide rods (11) symmetrically arranged on the upper part of the base frame (1), a screen frame (2) is slidably arranged between the two guide rods (11), and elastic members (12) are arranged between the screen frame (2) and the two guide rods (11), and a baffle (21) is rotatably arranged on the screen frame (2); it also comprises a lower hopper (3) fixedly arranged on the upper part of the base frame (1), and a quantitative rotary bucket (31) rotatably arranged in the lower hopper (3); it also comprises a servo motor (5) installed on the base frame (1), a cam (52) is fixedly arranged on the end of the output shaft of the servo motor (5), and a contact block (53) abutting against the cam (52) is arranged on the side wall of the screen frame (2).

2. A seed particle screening device for corn planting according to claim 1, characterized in that: The screen frame (2) is in an inclined state as a whole.

3. A seed particle screening device for corn planting according to claim 2, characterized in that: A first collecting frame (4) is hung on the lower part of the screen frame (2), a second collecting frame (41) is provided on the lower part of the base frame (1), and the opening of the screen frame (2) is inclined toward the second collecting frame (41).

4. A seed particle screening device for corn planting according to claim 3, characterized in that: A pull-out plate (32) is slidably provided in the lower hopper (3).

5. The seed particle screening device for corn planting according to claim 4, characterized in that: A first pulley (311) is provided at the end of the quantitative rotating bucket (31), a second pulley (51) is provided on the output shaft of the servo motor (5), and a transmission belt is laid between the first pulley (311) and the second pulley (51).

6. The seed particle screening device for corn planting according to claim 5, characterized in that: A guide frame (6) is provided at the opening of the screen frame (2), a latch (61) is slidably provided in the guide frame (6), and an insert ring (62) matching the latch (61) is provided on the baffle (21).

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