Device for selecting and grading peanut seeds according to plumpness
By linking the frame, secondary screening mechanism, and tertiary screening mechanism, combined with negative pressure air duct and centrifugal fan, the problem of low efficiency and poor quality of peanut seed screening in the existing technology has been solved, and efficient seed plumpness grading has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO LU JUFENG SEED IND CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-26
AI Technical Summary
Existing peanut seed screening devices cannot achieve rapid and thorough multi-stage screening, resulting in low screening efficiency and poor quality, and are unable to effectively distinguish between seeds that are similar in appearance but empty inside.
A peanut seed selection and grading device based on plumpness is adopted, which includes a frame, a two-stage screening mechanism, a three-stage screening mechanism and a collection mechanism. Through the linkage of the first-stage screening, the second-stage screening and the third-stage screening, combined with the negative pressure air duct and the centrifugal fan, the selection and grading of seeds can be achieved.
It enables rapid and thorough screening of peanut seeds, improving screening efficiency and quality, and effectively distinguishing seeds with different levels of plumpness.
Smart Images
Figure CN224272032U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seed sorting technology, and in particular to a device for selecting and grading peanut seeds according to their plumpness. Background Technology
[0002] Peanut seeds need to be graded and screened according to their plumpness during the production process. Existing screening devices cannot achieve rapid and thorough screening of peanut seeds, and cannot perform multi-level screening at the same time, which affects the efficiency and quality of peanut seed screening.
[0003] For example, patent document CN213494778U discloses a peanut seed selection and grading device based on plumpness. Seeds enter the first sorting cylinder through the feed inlet. A motor drives the cylinder to rotate at a constant speed, screening out unplump or small seeds, which fall onto a filter screen. A vibrating plate vibrates, screening out even smaller seeds, which are collected through the discharge outlet. After a set time, a latch opens, the feed valve opens, and the seeds enter the first sorting chamber. The tray slides down to the second sorting chamber, and a slide rail reset device resets the tray, completing the sorting process.
[0004] Existing traditional peanut sorting devices mostly use a single screen structure, which has problems such as low sorting accuracy, high damage rate, and inability to distinguish similar-looking but empty seeds. Utility Model Content
[0005] The purpose of this invention is to provide a peanut seed selection and grading device based on plumpness in order to solve the above-mentioned problems.
[0006] This utility model achieves the above objectives through the following technical solutions:
[0007] A peanut seed selection and grading device based on plumpness includes a frame, a secondary screening mechanism, a tertiary screening mechanism, and a collection mechanism. The secondary screening mechanism and the collection mechanism are mounted on the frame. The secondary screening mechanism includes a secondary mounting frame. An input end guard plate is fixedly connected to the inner side of one end of the secondary mounting frame, and an output end guard plate is fixedly connected to the inner side of the other end of the secondary mounting frame. A motor is fixedly connected to the other end of the secondary mounting frame. A feed chute is fixedly connected to one end of the input end guard plate. A conical roller is rotatably connected to the inner wall of the input end guard plate, and the conical roller and the output end guard plate are rotatably connected. An auger shaft is rotatably connected to the input end guard plate, and auger blades are fixedly connected to the auger shaft. A conical screen is fixedly connected to the conical roller. The outer side of the auger blades and the inner side of the conical roller are fixedly connected. The other end of the auger shaft is fixedly connected to the motor, and the auger shaft is sleeved on the secondary mounting frame.
[0008] Preferably, the frame includes a mounting base plate, a plurality of support columns are fixedly connected to the top of the mounting base plate, a plurality of single-layer square tubes are fixedly connected to the support columns, a plurality of double-layer square tubes are fixedly connected to the top of the support columns, the single-layer square tubes are fixedly connected to the secondary mounting frame, and a primary screening mechanism is provided at the top of the frame.
[0009] Preferably, the primary screening mechanism includes multiple mounting plates. The bottom end of the mounting plates is fixedly connected to the top end of the second-layer square tube. A compression spring is fixedly connected to the top end of the mounting plates. A mounting rib is fixedly connected to the top end of the compression spring. A screen outer frame is fixedly connected to one side of the mounting rib. A discharge trough plate one is fixedly connected to one end of the screen outer frame. A discharge trough plate two is fixedly connected to one end of the screen outer frame. The bottom end of discharge trough plate one is fixedly connected to the top end of discharge trough plate two. Multiple vibrating motors are fixedly connected to both sides of the screen outer frame. A feed pipe is fixedly connected to the rear side of the top end of the screen outer frame. A screen mesh one is fixedly connected to the inside of the screen outer frame. A screen mesh two is fixedly connected to the inside of the screen outer frame. Screen mesh two is at the bottom of screen mesh one. A collection base plate is fixedly connected to the bottom end of the screen outer frame. A collection bin one is fixedly connected to the inside side of the second-layer square tube. Collection bin one is below the collection base plate.
[0010] Preferably, the collection mechanism includes a collection shell, the bottom end of which is fixedly connected to the top end of the mounting base plate, a second collection chamber is slidably connected inside the collection shell, a handle is fixedly connected to the front end of the second collection chamber, and a partition is fixedly connected inside the second collection chamber.
[0011] Preferably, the three-stage screening mechanism includes a negative pressure chamber, the bottom of which is fixedly connected to the top of the collection shell. Multiple negative pressure pipes are fixedly connected to the rear side of the negative pressure chamber. A negative pressure guide pipe is fixedly connected to the rear end of the negative pressure pipe. A negative pressure fan is fixedly connected to the rear end of the negative pressure guide pipe. An electric motor is fixedly connected to the rear end of the negative pressure fan. A discharge pipe is fixedly connected to the top of the negative pressure chamber. A conical guard plate is fixedly connected to the top end of the discharge pipe.
[0012] Preferably, the conical roller has rectangular grooves.
[0013] The beneficial effects are as follows: through the linkage of three-stage mechanical screening mechanism (primary screening mechanism, secondary screening mechanism and tertiary screening mechanism), impurities and fragments in the seeds are first screened, then the seeds are screened by size, and finally the seeds are selected and graded according to their fullness using negative pressure air duct and centrifugal fan.
[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is an isometric view of a peanut seed selection and grading device based on plumpness as described in this utility model;
[0017] Figure 2 This is a front sectional view of a peanut seed selection and grading device based on plumpness as described in this utility model;
[0018] Figure 3 This is an isometric view of the primary screening mechanism of the peanut seed selection and grading device according to plumpness described in this utility model;
[0019] Figure 4 This is an isometric view of the secondary screening mechanism of the peanut seed selection and grading device according to plumpness described in this utility model;
[0020] Figure 5 This is an isometric view of the three-stage screening mechanism of the peanut seed selection and grading device according to plumpness described in this utility model;
[0021] Figure 6 This is an isometric view of the collection mechanism of the peanut seed selection and grading device according to plumpness described in this utility model.
[0022] The reference numerals in the attached drawings are explained as follows: 101. Mounting base plate; 102. Support column; 103. First layer square tube; 104. Second layer square tube; 201. Mounting fixing plate; 202. Compression spring; 203. Mounting rib plate; 204. Screen outer frame; 205. Feed pipe; 206. Screen one; 207. Screen two; 208. Collection base plate; 209. Collection bin one; 210. Vibration motor; 211. Discharge trough plate one; 212. Discharge trough plate two; 301. Secondary mounting frame; 30 2. Input end guard plate; 303. Feed chute; 304. Screw shaft; 305. Conical drum; 306. Conical screen; 307. Screw blades; 308. Output end guard plate; 309. Motor 1; 401. Conical guard plate; 402. Feed pipe; 403. Negative pressure chamber; 404. Negative pressure pipeline; 405. Negative pressure guide pipe; 406. Negative pressure fan; 407. Motor 2; 501. Collection shell; 502. Collection chamber 2; 503. Handle; 504. Partition plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] The present invention will be further described below with reference to the accompanying drawings:
[0026] like Figures 1-6 As shown, a peanut seed selection and grading device based on plumpness includes a frame, a secondary screening mechanism, a tertiary screening mechanism, and a collection mechanism. The secondary screening mechanism and the collection mechanism are mounted on the frame. The secondary screening mechanism includes a secondary mounting frame 301. An input end guard plate 302 is bolted to the inner left end of the secondary mounting frame 301, and an output end guard plate 308 is bolted to the inner right end of the secondary mounting frame 301. A motor 309 is bolted to the right end of the secondary mounting frame 301. A feed trough 303 is welded to the left end of the input end guard plate 302. A conical roller 305 is rotatably connected to the inner wall of the input end guard plate 302. The conical roller 305 and the output end guard plate 308 are rotatably connected. An auger shaft 304 is rotatably connected to the input end guard plate 302, and auger blades 307 are welded to the auger shaft 304. A conical screen 306 is bolted to the cylinder 305. The outer side of the auger blades 307 is welded to the inner side of the conical drum 305. The right end of the auger shaft 304 is connected to the motor 309 via a key. The auger shaft 304 is fitted onto the secondary mounting bracket 301. The conical screen 306 has a smaller mesh size on the left end and a larger mesh size on the right end. After the peanut seeds are initially separated, they enter the feed trough 303 and flow into the conical drum 305. Then, the motor 309 starts, and the output shaft of the motor 309 begins to rotate. The rotation of the motor 309 drives the auger shaft 304 to rotate, and the peanut seeds will roll on the conical drum 305. The auger blades 307 act as a guide. When the peanut seeds come into contact with the conical screen 306, the smaller peanut seeds fall into the conical guard plate 401 first, and the larger peanut seeds fall into the conical guard plate 401 later.
[0027] The frame includes a mounting base plate 101, with multiple support columns 102 welded to the top of the mounting base plate 101. Multiple single-layer square tubes 103 are welded to the support columns 102, and multiple double-layer square tubes 104 are welded to the top of the support columns 102. The single-layer square tubes 103 and the secondary mounting frame 301 are connected by bolts. A primary screening mechanism is set at the top of the frame.
[0028] The primary screening mechanism includes multiple mounting plates 201. The bottom end of the mounting plate 201 and the top end of the second-layer square tube 104 are connected by bolts. A compression spring 202 is welded to the top end of the mounting plate 201, and a mounting rib 203 is welded to the top end of the compression spring 202. A screen outer frame 204 is welded to one side of the mounting rib 203. A discharge chute plate 1 211 and a discharge chute plate 222 are welded to the left end of the screen outer frame 204. 212, the bottom of discharge trough plate one 211 is bolted to the top of discharge trough plate two 212. Multiple vibrating motors 210 are bolted to both sides of the screen outer frame 204. A feed pipe 205 is welded to the rear top of the screen outer frame 204. Screen mesh one 206 is welded inside the screen outer frame 204. Screen mesh two 207 is welded inside the screen outer frame 204, located at the bottom of screen mesh one 206. The bottom of the screen outer frame 204 is bolted to... A collection base plate 208 is connected to a collection bin 209, which is bolted to the inner side of a two-layer square tube 104. The collection bin 209 is located below the collection base plate 208. The first screen 206 has a larger mesh size and is used to screen larger impurities in the material. The second screen 207 has a smaller mesh size and is used to screen broken materials. A guide tube is opened at the bottom of the collection base plate 208 so that the broken particles can be discharged into the collection bin 209. When peanut seeds enter the screen frame 204 from the feed pipe 205, the vibration motor 210 starts. The vibration motor 210 drives the first-stage screening mechanism to start vibrating. Under vibration, the peanut seeds start to move forward. The first screen 206, with its larger mesh size, removes impurities, which are discharged from the discharge chute 211. The second screen 207, with its smaller mesh size, screens out broken particles, which are discharged from the collection base plate 208 into the collection bin 209. The intact peanut seeds are discharged into the feed chute 303 through the discharge chute 212.
[0029] The collecting mechanism includes a collecting shell 501, the bottom of which is bolted to the top of the mounting base plate 101. A second collecting chamber 502 is slidably connected inside the collecting shell 501. A handle 503 is welded to the front end of the second collecting chamber 502, and a partition 504 is welded to its interior. When peanut seeds fall into the negative pressure zone, under the influence of negative pressure, plump seeds, due to their greater mass, are significantly affected by gravity and fall along the main airflow direction into the front end of the second collecting chamber 502. Empty seeds, with their smaller mass, are carried by the airflow to the rear end of the second collecting chamber 502.
[0030] The three-stage screening mechanism includes a negative pressure chamber 403, the bottom of which is bolted to the top of the collection shell 501. Multiple negative pressure pipes 404 are welded to the rear of the negative pressure chamber 403. A negative pressure guide pipe 405 is bolted to the rear end of each negative pressure pipe 404. A negative pressure fan 406 is bolted to the rear end of each negative pressure guide pipe 405. A motor 407 is bolted to the rear end of each negative pressure fan 406. A discharge pipe 402 is welded to the top of the negative pressure chamber 403. The top of the discharge pipe 402... A conical guard plate 401 is welded on. When the peanut seeds descend to the conical guard plate 401, the second motor 407 starts. The output shaft of the second motor 407 drives the fan blades inside the negative pressure fan 406 to rotate. At this time, the airflow inside the negative pressure fan 406 begins to flow, and negative pressure begins to form inside the negative pressure guide pipe 405, negative pressure pipe 404, and negative pressure chamber 403. The negative pressure zone attracts peanut seeds into the negative pressure chamber 403. Plump seeds have a larger mass and are significantly affected by gravity, falling along the main airflow direction into the front end of the second collection chamber 502. Empty and shriveled seeds have a smaller mass and are carried by the airflow to the rear end of the second collection chamber 502.
[0031] The conical roller 305 has a rectangular groove, and a screen is installed above the rectangular groove.
[0032] Working Principle: When peanut seeds enter the sieve frame 204 through the feed pipe 205, the vibrating motor 210 starts, driving the sieve frame 204 to vibrate. The vibration of the sieve frame 204 causes the internal screens 206 and 207 to vibrate together, and the peanut seeds begin to move forward under the vibration. Screen 206 has a larger mesh size and is used to remove impurities, which are then discharged through the discharge chute 211. Screen 207 has a smaller mesh size and is used to remove broken particles, which are discharged through the collection bottom plate 208 into the collection bin 209. The intact peanut seeds after screening are discharged into the feed chute 303 through the discharge chute 212. The left end of the conical screen 306 has a smaller mesh size, and the right end has a larger mesh size. After the initial separation, the peanut seeds flow into the feed chute 303 and then into the conical drum 305. Subsequently, the motor 309 starts, and its output shaft begins to rotate, thereby driving the auger shaft 304 to rotate. As peanut seeds roll on the conical roller 305, the auger blades 307 act as guides. When the peanut seeds come into contact with the conical screen 306, smaller seeds fall into the conical guard plate 401 first, followed by larger seeds. Because the mesh count is smaller at the left end and larger at the right end of the conical screen 306, all peanut seeds eventually fall into the conical guard plate 401. When the peanut seeds descend to the conical guard plate 401, the second motor 407 starts, and its output shaft drives the fan blades inside the negative pressure fan 406 to rotate. At this time, airflow begins to flow inside the negative pressure fan 406. Negative pressure begins to form inside the negative pressure guide pipe 405, negative pressure pipe 404, and negative pressure chamber 403, attracting peanut seeds into the negative pressure chamber 403. Plump seeds, due to their larger mass, are significantly affected by gravity and fall along the main airflow direction into the front end of the second collection chamber 502. Empty seeds, due to their smaller mass, are carried by the airflow to the rear end of the second collection chamber 502.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A peanut seed selection and grading device based on plumpness, comprising a frame, a secondary screening mechanism, a tertiary screening mechanism, and a collection mechanism, wherein the secondary screening mechanism is mounted on the frame, and the collection mechanism is mounted on the frame, characterized in that: The secondary screening mechanism includes a secondary mounting frame (301). An input end guard plate (302) is fixedly connected to the inner side of one end of the secondary mounting frame (301), and an output end guard plate (308) is fixedly connected to the inner side of the other end of the secondary mounting frame (301). A motor (309) is fixedly connected to the other end of the secondary mounting frame (301). A feed chute (303) is fixedly connected to one end of the input end guard plate (302). A conical roller (305) is rotatably connected to the inner wall of the input end guard plate (302). The input end guard plate (302) is rotatably connected to the output end guard plate (308). The auger shaft (304) is rotatably connected to the input end guard plate (302). The auger blade (307) is fixedly connected to the auger shaft (304). The conical screen (306) is fixedly connected to the conical drum (305). The outer side of the auger blade (307) is fixedly connected to the inner side of the conical drum (305). The other end of the auger shaft (304) is fixedly connected to the motor (309). The secondary mounting bracket (301) is sleeved on the auger shaft (304).
2. The peanut seed selection and grading device according to fullness as described in claim 1, characterized in that: The frame includes a mounting base plate (101), a plurality of support columns (102) are fixedly connected to the top of the mounting base plate (101), a plurality of single-layer square tubes (103) are fixedly connected to the support columns (102), a plurality of double-layer square tubes (104) are fixedly connected to the top of the support columns (102), the single-layer square tubes (103) are fixedly connected to the secondary mounting frame (301), and a primary screening mechanism is provided at the top of the frame.
3. The peanut seed selection and grading device according to fullness as described in claim 2, characterized in that: The primary screening mechanism includes multiple mounting plates (201). The bottom end of the mounting plate (201) is fixedly connected to the top end of the second-layer square tube (104). A compression spring (202) is fixedly connected to the top end of the mounting plate (201). A mounting rib (203) is fixedly connected to the top end of the compression spring (202). A screen outer frame (204) is fixedly connected to one side of the mounting rib (203). A discharge trough plate (211) is fixedly connected to one end of the screen outer frame (204). A discharge trough plate (212) is fixedly connected to one end of the screen outer frame (204). The top end of the discharge trough plate (212) is fixedly connected to the discharge trough plate (211). On 211), multiple vibrating motors (210) are fixedly connected to both sides of the sieve frame (204), a feed pipe (205) is fixedly connected to the rear top of the sieve frame (204), a screen one (206) is fixedly connected inside the sieve frame (204), a screen two (207) is fixedly connected inside the sieve frame (204), the screen two (207) is at the bottom of the screen one (206), a collection base plate (208) is fixedly connected to the bottom end of the sieve frame (204), a collection bin one (209) is fixedly connected to the inner side of the two-layer square tube (104), and the collection bin one (209) is below the collection base plate (208).
4. The peanut seed selection and grading device according to fullness as described in claim 2, characterized in that: The collection mechanism includes a collection shell (501), the bottom end of which is fixedly connected to the top end of the mounting base plate (101). A second collection chamber (502) is slidably connected inside the collection shell (501). A handle (503) is fixedly connected to the front end of the second collection chamber (502). A partition (504) is fixedly connected inside the second collection chamber (502).
5. A peanut seed selection and grading device according to fullness as described in claim 4, characterized in that: The three-stage screening mechanism includes a negative pressure chamber (403), the bottom end of which is fixedly connected to the top end of the collection shell (501). Multiple negative pressure pipes (404) are fixedly connected to the rear side of the negative pressure chamber (403). A negative pressure guide pipe (405) is fixedly connected to the rear end of the negative pressure pipe (404). A negative pressure fan (406) is fixedly connected to the rear end of the negative pressure guide pipe (405). A second motor (407) is fixedly connected to the rear end of the negative pressure fan (406). A discharge pipe (402) is fixedly connected to the top end of the negative pressure chamber (403). A conical guard plate (401) is fixedly connected to the top end of the discharge pipe (402).
6. The peanut seed selection and grading device according to claim 1, characterized in that: The conical roller (305) has a rectangular groove.