Screening device for seed sowing

Abstract

The utility model discloses a screening device for seed sowing, and relates to the technical field of screening devices, the screening device comprises a cylinder body, the lower end of the cylinder body is fixedly connected with a support seat, the bottom of the cylinder body is fixedly connected with a feed opening, two hinged plates which are symmetrically distributed are hinged in the cylinder body, the hinged plates are internally provided with screens, and the screens are arranged on the support seat. And a charging barrel is fixedly connected to the interior of the barrel body, and a feeding opening is fixedly connected to the top of the charging barrel. According to the seed screening device, the hinged plate is designed, the screen is arranged in the hinged plate and can screen seeds, in the screening process, the rotating shaft and the jacking block can be driven to rotate under the action of the rotating motor, and the hinged plate and the screen can swing back and forth in the cylinder body through extrusion of the jacking block on the protruding block and matched use of the spring; during screening, the screen can be prevented from being blocked by seed accumulation, seed screening can be accelerated, and the screening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, and in particular to a screening device for seed sowing. Background Technology

[0002] Agricultural sowing is the most important part of agricultural production. High-quality seeds can not only increase production yield but also improve production quality. Therefore, before sowing, people usually need to screen seeds and remove those that are shriveled, deformed, or too small.

[0003] Utility model patent CN215421601U discloses an agricultural seed screening and sowing device, comprising: a movable box, wherein a screen is nested inside the upper end of the movable box, and a front fixing plate and a rear fixing plate are respectively fixedly connected to the screen on its front and rear sides; a gear with a shaft, which is engaged and penetrates the front end of the movable box, and a T-shaped plate is fixedly connected to the outer side of the middle of the gear, and a rack is meshed with the lower front end of the gear; a collection box, located below the screen, and a limiting plate is symmetrically arranged on the rear side of the collection box; and a first feeding hole. This agricultural seed screening and sowing device avoids screen clogging, improves seed screening effect, facilitates the removal of screened seeds, and allows qualified seeds to be placed into the lower end of the movable box for sowing, while also facilitating control of the seed feeding amount.

[0004] In the aforementioned prior art, the screen is cleaned by scraping with a brush during seed screening to prevent clogging. However, during seed screening, seeds tend to accumulate in large quantities inside the device, and this accumulation can also cause screen clogging, affecting the screening process. Therefore, improvements are needed. Utility Model Content

[0005] This invention provides a screening device for seed sowing, which solves the technical problem that seed accumulation during seed screening affects the screening process.

[0006] To solve the above-mentioned technical problems, this utility model provides a screening device for seed sowing, including a cylinder, a support base fixedly connected to the lower end of the cylinder, a feeding port fixedly connected to the bottom of the cylinder, two symmetrically distributed hinge plates hinged inside the cylinder, a screen being provided inside the hinge plates, a material cylinder fixedly connected inside the cylinder, a feeding port fixedly connected to the top of the material cylinder, a screening mechanism being provided on the hinge plates, and a feeding mechanism being provided on the material cylinder.

[0007] Preferably, there are multiple support seats, which are evenly distributed at the bottom of the cylinder. By designing the support seats, the overall structure can be supported.

[0008] Preferably, the screening mechanism includes a rotary motor. The rotary motor is fixedly mounted on the right end of the cylinder, and its output end is rotatably connected to the cylinder. A rotating shaft is fixedly connected to the left end of the motor's output end, and this shaft is rotatably connected to the cylinder. A top block is fixedly connected to the outer side of the rotating shaft. Protrusions are fixedly connected to the sides of the two hinge plates that are close to each other. A fixing block is fixedly connected to the inner wall of the cylinder, and a spring is provided between the fixing block and the hinge plate. By designing this screening mechanism, seeds can be screened.

[0009] Preferably, one end of the spring is fixedly connected to the fixed block, and the other end of the spring is fixedly connected to the hinge plate. The spring is designed so that its force can be applied to the hinge plate.

[0010] Preferably, the feeding mechanism includes a mounting base. The upper end of the cylinder is fixedly connected to the mounting base, and a drive motor is fixedly mounted on the top of the mounting base. The output end of the drive motor is rotatably connected to the cylinder. A rotating rod is fixedly connected to the left end of the drive motor's output end. The rotating rod is rotatably connected to the cylinder via a bearing. A cam is fixedly connected to the outer side of the rotating rod, and a hinge rod is hinged to the inner side of the cam. A hinge seat is hinged to the outer side of the other end of the hinge rod, and a plug is fixedly connected to the bottom of the hinge seat. The plug is slidably connected to the cylinder. By designing this feeding mechanism, intermittent feeding can be performed inside the cylinder.

[0011] Preferably, a guide rod is fixedly connected to the outer side of the hinge seat, and the guide rod is slidably connected to the material cylinder. By designing the guide rod, the movement of the hinge seat can be guided.

[0012] Compared with related technologies, the screening device for seed sowing provided by this utility model has the following beneficial effects:

[0013] This utility model provides a screening device for seed sowing. By designing a hinge plate with a screen inside, the device can screen seeds. During the screening process, the rotating motor drives the rotating shaft and the top block to rotate. Through the pressure of the top block on the protrusion and the cooperation of the spring, the hinge plate and the screen can reciprocate inside the cylinder. This prevents the screen from being blocked by seed accumulation, accelerates seed screening, and improves screening efficiency.

[0014] This utility model provides a screening device for seed sowing. By designing a material cylinder, seeds to be screened can be conveyed into the cylinder. During the seed input process, the drive motor works intermittently. The output end of the drive motor can drive the rotating rod and cam to rotate. The cam can drive the hinge rod to rotate, and the hinge rod can pull the hinge seat and the plug to move back and forth in the vertical direction, realizing the opening and closing of the plug and the inner wall of the material cylinder. This facilitates the intermittent input of seeds into the cylinder, enabling batch screening of seeds and avoiding the impact of excessive seed quantity on the screening effect. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the image;

[0018] Figure 4 This utility model Figure 2 The front sectional view of the barrel in the image.

[0019] Numbering on the map:

[0020] 1. Cylinder; 2. Support base; 3. Discharge port; 4. Hinge plate; 5. Screen; 6. Material cylinder; 7. Feed port; 8. Screening mechanism; 9. Feeding mechanism; 81. Rotary motor; 82. Rotating shaft; 83. Top block; 84. Protrusion; 85. Fixing block; 86. Spring; 91. Mounting base; 92. Drive motor; 93. Rotating rod; 94. Cam; 95. Hinge rod; 96. Hinge base; 97. Plug; 98. Guide rod. Detailed Implementation

[0021] Please see Figure 1 , Figure 2 A screening device for seed sowing includes a cylinder 1, with a support base 2 fixedly connected to the lower end of the cylinder 1. The support bases 2 are evenly distributed at the bottom of the cylinder 1. The support bases 2 are designed to support the overall structure. A feed port 3 is fixedly connected to the bottom of the cylinder 1. Two symmetrically distributed hinge plates 4 are hinged inside the cylinder 1. A screen 5 is installed inside the hinge plates 4. A material cylinder 6 is fixedly connected inside the cylinder 1. A feed inlet 7 is fixedly connected to the top of the material cylinder 6. A screening mechanism 8 is installed on the hinge plates 4. A feeding mechanism 9 is installed on the material cylinder 6.

[0022] Please see Figure 1 , Figure 2 , Figure 3The screening mechanism 8 includes a rotary motor 81. The rotary motor 81 is fixedly installed at the right end of the cylinder 1. The output end of the rotary motor 81 is rotatably connected to the cylinder 1. The left end of the output end of the rotary motor 81 is fixedly connected to a rotating shaft 82. The rotating shaft 82 is rotatably connected to the cylinder 1. A top block 83 is fixedly connected to the outer side of the rotating shaft 82. A protrusion 84 is fixedly connected to the side of the two hinge plates 4 that are close to each other. A fixing block 85 is fixedly connected to the inner side wall of the cylinder 1. A spring 86 is provided between the fixing block 85 and the hinge plate 4. One end of the spring 86 is fixedly connected to the fixing block 85, and the other end of the spring 86 is fixedly connected to the hinge plate 4. By designing the spring 86, the force of the spring 86 can be applied to the hinge plate 4. By designing the screening mechanism 8, seeds can be screened.

[0023] Please see Figure 1 , Figure 2 , Figure 4 The feeding mechanism 9 includes a mounting base 91. The mounting base 91 is fixedly connected to the upper end of the cylinder 1. A drive motor 92 is fixedly mounted on the top of the mounting base 91. The output end of the drive motor 92 is rotatably connected to the material cylinder 6. A rotating rod 93 is fixedly connected to the left end of the output end of the drive motor 92. The rotating rod 93 is rotatably connected to the material cylinder 6 through a bearing. A cam 94 is fixedly connected to the outer side of the rotating rod 93. A hinge rod 95 is hinged to the inner side of the cam 94. A hinge seat 96 is hinged to the outer side of the other end of the hinge rod 95. A plug 97 is fixedly connected to the bottom of the hinge seat 96. The plug 97 is slidably connected to the material cylinder 6. A guide rod 98 is fixedly connected to the outer side of the hinge seat 96. The guide rod 98 is slidably connected to the material cylinder 6. By designing the guide rod 98, the movement of the hinge seat 96 can be guided. By designing the feeding mechanism 9, intermittent feeding can be performed inside the cylinder 1.

[0024] Working principle: During use, the seeds to be screened are first added into the feed cylinder 6 through the feed inlet 7. The seeds will be fed into the cylinder 1 through the feed cylinder 6. Under the action of the hinge plate 4 and the screen 5, the screen 5 can screen the seeds. During the screening process, the rotating motor 81 works at the same time. The output end of the rotating motor 81 drives the rotating shaft 82 to rotate. The rotating shaft 82 drives the top block 83 to rotate. The top block 83 will squeeze the protrusion 84. The protrusion 84 will drive the hinge plate 4 to deflect. The hinge plate 4 will squeeze the spring 86 at one end and stretch the spring 86 at the other end. After the top block 83 rotates and separates from the protrusion 84, the hinge plate 4 can reciprocate inside the cylinder 1 under the elastic action of the spring 86. During screening, the screen 5 can be prevented from being blocked by seed accumulation, which can accelerate the screening of seeds and improve the screening efficiency.

[0025] When seeds are fed into the cylinder 1 through the material cylinder 6, the drive motor 92 works simultaneously. The output end of the drive motor 92 drives the rotating rod 93 to rotate, which in turn drives the cam 94 to rotate. The cam 94 can drive the hinge rod 95 to rotate, and the hinge rod 95 can pull the hinge seat 96 and the plug 97 to move back and forth in the vertical direction. This allows the plug 97 to open and close with the inner wall of the material cylinder 6, facilitating the intermittent feeding of seeds into the cylinder 1. This enables batch screening of seeds and avoids excessive seed quantity from affecting the screening effect.

Claims

1. A screening device for seed sowing, comprising a cylinder (1), characterized in that, The lower end of the cylinder (1) is fixedly connected to a support base (2), the bottom of the cylinder (1) is fixedly connected to a discharge port (3), the inside of the cylinder (1) has two symmetrically distributed hinge plates (4), the inside of the hinge plates (4) is provided with a screen (5), the inside of the cylinder (1) is fixedly connected to a material cylinder (6), the top of the material cylinder (6) is fixedly connected to a feed port (7), the hinge plates (4) are provided with a screening mechanism (8), and the material cylinder (6) is provided with a feeding mechanism (9).

2. The screening device for seed sowing according to claim 1, characterized in that, The number of the support bases (2) is multiple, and the multiple support bases (2) are evenly distributed at the bottom of the cylinder (1).

3. The screening device for seed sowing according to claim 1, characterized in that, The screening mechanism (8) includes a rotating motor (81). The rotating motor (81) is fixedly installed at the right end of the cylinder (1). The output end of the rotating motor (81) is rotatably connected to the cylinder (1). A rotating shaft (82) is fixedly connected to the left end of the output end of the rotating motor (81). The rotating shaft (82) is rotatably connected to the cylinder (1). A top block (83) is fixedly connected to the outer side of the rotating shaft (82). A protrusion (84) is fixedly connected to the side of the two hinge plates (4) that are close to each other. A fixing block (85) is fixedly connected to the inner wall of the cylinder (1). A spring (86) is provided between the fixing block (85) and the hinge plate (4).

4. A screening device for seed sowing according to claim 3, characterized in that, One end of the spring (86) is fixedly connected to the fixing block (85), and the other end of the spring (86) is fixedly connected to the hinge plate (4).

5. A screening device for seed sowing according to claim 1, characterized in that, The feeding mechanism (9) includes a mounting base (91). The upper end of the cylinder (1) is fixedly connected to the mounting base (91). The top of the mounting base (91) is fixedly mounted with a drive motor (92). The output end of the drive motor (92) is rotatably connected to the material cylinder (6). The left end of the output end of the drive motor (92) is fixedly connected with a rotating rod (93). The rotating rod (93) is rotatably connected to the material cylinder (6) through a bearing. The outer side of the rotating rod (93) is fixedly connected with a cam (94). The inner side of the cam (94) is hinged with a hinge rod (95). The outer side of the other end of the hinge rod (95) is hinged with a hinge seat (96). The bottom of the hinge seat (96) is fixedly connected with a plug (97). The plug (97) is slidably connected to the material cylinder (6).

6. A screening device for seed sowing according to claim 5, characterized in that, A guide rod (98) is fixedly connected to the outside of the hinge seat (96), and the guide rod (98) is slidably connected to the material cylinder (6).

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