Seed screening device

Abstract

The utility model belongs to the technical field of agriculture, and discloses a seed screening device which comprises a screening assembly used for screening seeds and collecting heavy impurities and further comprises an impurity removal assembly installed on the screening assembly and used for dual winnowing impurity removal and seed blocking. A discharging assembly used for controlling discharging in a swing opening and closing mode on the two sides is arranged on the impurity removing assembly. The impurity removal assembly comprises an impurity removal box, and a first fan is installed on one side of the top of the impurity removal box. According to the seed screening device, due to the arrangement of double winnowing and impurity removal, seeds pass through the upper winnowing area and the lower winnowing area, light impurities in the seeds are blown out firstly, then the seeds are blown away to be separated from heavy impurities, and the impurity removal effect is improved; through the arrangement of blocking seeds, the winnowed seeds fall on the top of the screen plate, and the screening effect is improved; and through the arrangement of swinging opening and closing on the two sides, the discharging speed is controlled, and different screening requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of agriculture, and particularly relates to a seed screening device. Background Technique

[0002] Agricultural technology refers to the scientific research achievements and practical technologies applied to planting, forestry, animal husbandry, and fishery. Before agricultural planting, it is necessary to screen seeds. Seed screening is an important link in agricultural production, aiming to remove impurities, diseased seeds, insect-infested seeds and other defective seeds in the seeds through physical or mechanical methods to improve the quality and purity of the seeds. Through scientific and reasonable screening methods and treatment measures, the quality and purity of the seeds can be effectively improved, laying a solid foundation for the harvest of agricultural production.

[0003] Comparing with the Chinese patent with the authorized announcement number of CN221335440U, it discloses a seed screening device, including a preselection box. A speed reduction device is installed in the inner cavity of the preselection box. One side of the preselection box below the speed reduction device is installed with a pneumatic selection device, and the other side of the preselection box is installed with a collection device symmetrically distributed with the pneumatic selection device. A screening device is provided at the bottom of the preselection box. The pneumatic selection device includes a blowing air pipe communicated with the inner cavity of the preselection box. A blowing motor is installed in the inner cavity of the blowing air pipe. The output end of the blowing motor is fixedly connected with a fan blade. The collection device includes an exhaust pipe symmetrically distributed with the blowing air pipe. One end of the exhaust pipe penetrates through the preselection box and is fixedly connected with the preselection box. A filter bag is detachably connected to the free end of the exhaust pipe.

[0004] The above patent can only blow out the light impurities in the seeds and cannot remove the heavy impurities in the seeds. Therefore, a new device needs to be designed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a seed screening device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A seed screening device includes a screening component for screening seeds and collecting heavy impurities, and further includes an impurity removal component installed above the screening component for double pneumatic selection of impurity removal and blocking seeds. A blanking component for controlling the blanking by swinging and opening on both sides is arranged above the impurity removal component;

[0008] The impurity removal component includes an impurity removal box. A first fan is installed on one side of the top of the impurity removal box. An air outlet pipe is arranged on the side of the top of the impurity removal box away from the first fan. A collection bag is installed below the air outlet pipe. A blocking net is arranged above the collection bag. A second fan is arranged below the air outlet pipe. A baffle is arranged on one side of the second fan;

[0009] The blanking component includes a feed hopper, two rotating shafts are symmetrically arranged on both sides inside the feed hopper, a sluice gate is installed on the rotating shafts, and a motor is installed in front of the rotating shafts.

[0010] Further: The screening component includes a screening box, a sieve plate is arranged inside the screening box, a first blanking hopper is arranged on one side of the sieve plate, a guiding plate is arranged below the sieve plate, a second blanking hopper is arranged on one side of the guiding plate, and a sundry box is arranged on the side of the guiding plate away from the second blanking hopper.

[0011] Further: Air guiding grille plates are installed at the air outlets of the first blower and the second blower, and both the first blower and the second blower adopt axial flow blowers.

[0012] Further: The collection bag is snap-connected to the air outlet pipe.

[0013] Further: The shape of the baffle plate is arc-shaped and it is a porous structure.

[0014] Further: The sieve plate is inclined, and the sundry box is slidably connected to the screening box.

[0015] Compared with the prior art, the beneficial effects are as follows:

[0016] 1. Through the setting of double air separation for impurity removal, the seeds pass through the upper and lower air separation areas. First, the light impurities in the seeds are blown out, and then the seeds are blown apart to be separated from the heavy impurities, improving the impurity removal effect;

[0017] 2. Through the setting of blocking the seeds, the air-selected seeds fall on the top of the sieve plate, improving the screening effect;

[0018] 3. Through the setting of swinging and opening / closing on both sides, the blanking speed is controlled to meet different screening requirements. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a seed screening device according to the present utility model;

[0020] Figure 2 is an axonometric view of the screening component of a seed screening device according to the present utility model;

[0021] Figure 3 is an axonometric view of the impurity removal component of a seed screening device according to the present utility model;

[0022] Figure 4 is an axonometric view of the blanking component of a seed screening device according to the present utility model.

[0023] In the attached drawing reference numerals: 101, screening box; 102, sieve plate; 103, first discharge hopper; 104, guide plate; 105, second discharge hopper; 106, sundries box; 201, impurity removal box; 202, first fan; 203, air outlet pipe; 204, retaining net; 205, collection bag; 206, second fan; 207, baffle plate; 208, air guide grille plate; 301, feed hopper; 302, rotating shaft; 303, shutter; 304, motor. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-4 , a seed screening device, including a screening component for screening seeds and collecting heavy impurities, and further including an impurity removal component installed above the screening component for double air separation and impurity removal and blocking seeds, and a blanking component for controlling blanking by swinging open and closing on both sides is provided above the impurity removal component.

[0026] In this embodiment: The screening component includes a screening box 101. A sieve plate 102 is arranged in the screening box 101. A first discharge hopper 103 is arranged on one side of the sieve plate 102. A guide plate 104 is arranged below the sieve plate 102. A second discharge hopper 105 is arranged on one side of the guide plate 104. A sundries box 106 is arranged on the side of the guide plate 104 away from the second discharge hopper 105. The sieve plate 102 is inclined. The sundries box 106 is slidably connected to the screening box 101. After the seeds are decontaminated by the impurity removal component, they will fall on the top of the sieve plate 102. After being screened by the sieve plate 102, high-quality large seeds are discharged from the first discharge hopper 103, and small seeds are discharged from the second discharge hopper 105 through the guide plate 104. The heavy impurities in the seeds fall into the sundries box 106 for collection. After the screening is completed, the sundries box 106 can be pulled out of the screening box 101 to clean the heavy impurities;

[0027] In this embodiment: The impurity removal component includes an impurity removal box 201. One side of the top of the impurity removal box 201 is equipped with a first fan 202. On the side of the top of the impurity removal box 201 away from the first fan 202, an air outlet pipe 203 is provided. Below the air outlet pipe 203, a collection bag 205 is installed. Above the collection bag 205, a retaining net 204 is provided. Below the air outlet pipe 203, a second fan 206 is provided. On one side of the second fan 206, a baffle plate 207 is provided. Guide air grille plates 208 are installed at the air outlets of both the first fan 202 and the second fan 206. Both the first fan 202 and the second fan 206 are axial fans. The collection bag 205 is snap-connected to the air outlet pipe 203. The baffle plate 207 is arc-shaped and has a porous structure. When the seeds fall into the impurity removal box 201, the air blown by the first fan 202 is guided by the guide air grille plate 208 and first blows the light impurities and shriveled seeds in the seeds into the air outlet pipe 203, and is intercepted by the retaining net 204 and falls into the collection bag 205. Then, the second fan 206 blows the seeds towards the baffle plate 207, and is intercepted by it and falls on the top of the sieve plate 102. The heavy impurities in the seeds fall into the impurity box 106 for collection;

[0028] In this embodiment: The feeding component includes a feeding hopper 301. Two rotating shafts 302 are symmetrically arranged on both sides inside the feeding hopper 301. Gate plates 303 are installed on the rotating shafts 302. In front of the rotating shafts 302, a motor 304 is installed. After the seeds are poured into the feeding hopper 301, the motor 304 is driven to rotate the rotating shafts 302 to drive the two gate plates 303 to swing open and close to control the feeding.

[0029] Working principle: After the seeds are poured into the feeding hopper 301, the motor 304 is driven to rotate the rotating shafts 302 to drive the two gate plates 303 to swing open and close to control the feeding. When the seeds fall into the impurity removal box 201, the air blown by the first fan 202 is guided by the guide air grille plate 208 and first blows the light impurities and shriveled seeds in the seeds into the air outlet pipe 203, and is intercepted by the retaining net 204 and falls into the collection bag 205. Then, the second fan 206 blows the seeds towards the baffle plate 207, and is intercepted by it and falls on the top of the sieve plate 102. After being screened by the sieve plate 102, the high-quality large seeds are discharged from the first discharge hopper 103, and the small seeds are discharged from the second discharge hopper 105 through the guide plate 104. The heavy impurities in the seeds fall into the impurity box 106 for collection. After the screening is completed, the impurity box 106 can be pulled out of the screening box 101 to clean the heavy impurities.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seed screening device, comprising a screening assembly for screening seeds and collecting heavy impurities, characterized in that: It further includes a impurity removal component installed above the screening component for double air separation to remove impurities and block seeds, and a blanking component for controlling blanking by swinging open and closing on both sides is arranged on the impurity removal component; The impurity removal component includes an impurity removal box (201), a first fan (202) is installed on one side of the top of the impurity removal box (201), an air outlet pipe (203) is arranged on the side of the top of the impurity removal box (201) far from the first fan (202), a collection bag (205) is installed below the air outlet pipe (203), a barrier net (204) is arranged above the collection bag (205), a second fan (206) is arranged below the air outlet pipe (203), and a baffle plate (207) is arranged on one side of the second fan (206); The blanking component includes a feed hopper (301), two rotating shafts (302) are symmetrically arranged on both sides inside the feed hopper (301), a gate plate (303) is installed on the rotating shafts (302), and a motor (304) is installed in front of the rotating shafts (302).

2. The seed screening device according to claim 1, characterized in that: The screening component includes a screening box (101), a sieve plate (102) is arranged inside the screening box (101), a first blanking hopper (103) is arranged on one side of the sieve plate (102), a guide plate (104) is arranged below the sieve plate (102), a second blanking hopper (105) is arranged on one side of the guide plate (104), and a debris box (106) is arranged on the side of the guide plate (104) far from the second blanking hopper (105).

3. A seed screening device according to claim 1, characterized in that: Air guide grille plates (208) are installed at the air outlets of the first fan (202) and the second fan (206), and both the first fan (202) and the second fan (206) are axial flow fans.

4. A seed screening device according to claim 1, characterized in that: The collection bag (205) is snap-connected to the air outlet pipe (203).

5. A seed screening device according to claim 1, characterized in that: The baffle plate (207) is arc-shaped and has a porous structure.

6. The seed screening device according to claim 2, wherein: The sieve plate (102) is inclined, and the debris box (106) is slidably connected to the screening box (101).

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