Impurity removing and screening device for corn seeds

Abstract

The impurity removing and screening device for the corn seeds comprises a screening cylinder and screening hoppers, the screening hoppers are fixedly installed in the screening cylinder, the three screening hoppers are arranged at equal intervals from top to bottom, the bottom faces of the screening hoppers are all connected with discharging pipes in a penetrating mode, the discharging pipes penetrate through the side wall of the screening cylinder, and the discharging pipes are connected with the screening cylinder. Screen holes are formed in the surface of the screening hopper, and the hole diameters of the screen holes in the surface of the screening hopper are sequentially decreased from top to bottom. According to the corn seed screening device, the screening hopper, the discharging pipe, the plug, the rotating rod, the shifting rod and the shaft rod are adopted, screened corn seeds stay in the screening hopper according to grain grading, then the electric cylinder can be started to extend, the lifting table and the shaft rod are pushed to move upwards, the shaft rod moves upwards to drive the limiting ring to move upwards, the plug is pushed to move upwards, and a bottom opening of the screening hopper is opened; the corn seeds in the screening hopper can flow out along the discharging pipe, automatic grading discharging is completed, the trouble of manual grading discharging is omitted, and using convenience is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corn seed screening devices, in particular to an impurity removal and screening device for corn seeds. Background Art

[0002] In order to improve the quality of corn seeds during corn processing, it is necessary to screen out impurities in the corn seeds. The commonly used corn seed screening machines can only screen out larger impurities in the corn seeds. The existing corn seed screening only uses a single-layer filter for screening, and the screening particle size is relatively single.

[0003] After searching, it was found that the publication number was CN217664467U, and the name was a corn seed screening device for removing impurities. The application proposed a publication number CN201822025712.5, and the name was a corn seed pre-cultivation screening and impurity removal device. There was a problem that it did not have a material-shifting part, which pushed the seeds to roll and accelerate the falling of the corn seeds, resulting in reduced screening efficiency. The screening process was accelerated by using multiple screen plates and material-shifting rods.

[0004] The existing technology has the following problems:

[0005] 1. Although this application speeds up the screening process, it cannot automatically complete the unloading and requires manual removal and unloading, which is more troublesome.

[0006] 2. The screening method of material screening is relatively simple, and the screening efficiency can be further improved.

[0007] To this end, we proposed a device for removing impurities and screening corn seeds to solve the above-mentioned drawbacks. Utility Model Content

[0008] The utility model aims to solve the shortcomings in the prior art and proposes a device for removing impurities and screening corn seeds.

[0009] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for removing impurities and screening corn seeds, comprising a screening cylinder and a screening bucket, wherein a screening bucket is fixedly installed inside the screening cylinder, and three screening buckets are arranged at equal intervals from top to bottom, and the bottom surfaces of the screening buckets are connected through discharge pipes, and the discharge pipes penetrate the side walls of the screening cylinder, and the surface of the screening bucket is provided with sieve holes, and the apertures of the sieve holes on the surface of the screening bucket decrease successively from top to bottom, and a lifting platform is arranged above the screening cylinder, and a driving motor is fixedly installed on the top surface of the lifting platform, and a shaft rod is installed at the output end of the driving motor, and the shaft rod penetrates the discharge pipe It is slidably connected with the discharge pipe, and a rotating plate is fixedly sleeved on the surface of the shaft rod, and the side wall of the rotating plate is located inside the screening bucket and is fixedly connected to a rotating rod, a material removing rod is fixedly installed on the bottom surface of the rotating rod, a plug is provided under the rotating plate, and a rotating groove is provided on the top surface of the plug, a rotating column is fixedly connected to the bottom surface of the rotating plate, and the rotating column is inserted into the rotating groove and rotatably connected to the rotating groove, the shaft rod passes through the plug and is slidably connected to the plug, and a limiting ring is fixedly connected to the outer surface of the shaft rod below the plug, the diameter of the plug is equal to the inner diameter of the bottom of the screening bucket, and an electric cylinder is vertically installed between the lifting platform and the top surface of the screening cylinder.

[0010] Preferably, a vibration motor is fixedly mounted on the other side surface of the screening drum, and a plurality of vibration motors are arranged.

[0011] Preferably, the outward extension length of the discharge pipe decreases from top to bottom.

[0012] Preferably, the material-moving rods are densely distributed at equal intervals, and the bottom surfaces of the material-moving rods are in sliding contact with the inner wall of the screening bucket.

[0013] Preferably, a feed pipe is connected through the top surface of the screening cylinder, and a discharge port is provided on the bottom surface of the screening cylinder.

[0014] Preferably, a guide rod is vertically fixedly installed on the top surface of the screening cylinder, and the guide rod passes through the lifting platform and is slidably connected to the lifting platform.

[0015] Preferably, the vertical cross-sections of the rotating groove and the rotating column are both convex-shaped, and the inner wall of the rotating groove is polished.

[0016] Preferably, both ends of the electric cylinder are fixedly connected to the lifting platform and the screening drum respectively.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The utility model adopts a screening bucket, a discharge pipe, a plug, a rotating rod, a material-push rod and an axle rod. When screening and removing impurities from corn seeds, the corn seeds can be put into the screening cylinder from the feed pipe, and the corn seeds fall into the top screening bucket. The driving motor drives the axle rod to rotate, and then drives the rotating plate and the rotating rod to rotate, and drives the material-push rod to rotate, and the corn seeds are pushed. The corn seeds smaller than the sieve holes of the top screening bucket fall into the middle screening bucket, and the corn seeds smaller than the sieve holes of the middle screening bucket fall into the top screening bucket. In the screening bucket below, corn seeds and impurities that are smaller than the sieve holes of the lowest screening bucket fall out of the screening cylinder, completing the grading and impurity removal screening. The screened corn seeds stay in the screening bucket according to the particle grading. Then, the electric cylinder can be started to extend, pushing the lifting platform and the shaft rod upward. The upward movement of the shaft rod drives the limit ring upward, pushing the plug upward, opening the bottom of the screening bucket, and the corn seeds in the screening bucket can flow out along the discharge pipe, completing automatic grading and unloading, eliminating the trouble of manual grading and unloading, and significantly improving the convenience of use.

[0019] (2) The utility model adopts a vibration motor, which is started synchronously when the material-moving rod rotates. The material-moving rod plays a stirring role, accelerating the screening of corn seeds. At the same time, the vibration motor plays a vibrating role, further accelerating the screening of corn seeds, thereby improving the screening speed and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below.

[0021] Figure 1 This is a schematic diagram of the external structure of a device for removing impurities and screening corn seeds proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the installation of the material-moving rod proposed in the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the screening bucket proposed by the utility model;

[0024] Figure 4 The utility model is a schematic diagram of the internal structure of a device for removing impurities and screening corn seeds proposed by the utility model.

[0025] Legend:

[0026] 1. Screening cylinder; 2. Screening bucket; 3. Discharge pipe; 4. Shaft rod; 5. Lifting platform; 6. Driving motor; 7. Guide rod; 8. Feed pipe; 9. Electric cylinder; 10. Vibration motor; 11. Plug; 12. Rotating groove; 13. Rotating plate; 14. Rotating column; 15. Rotating rod; 16. Material removal rod; 17. Limiting ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0028] Please refer to Figure 1-4 A device for removing impurities from corn seeds comprises a screening drum 1 and a screening bucket 2. The screening bucket 2 is fixedly installed inside the screening drum 1, and three screening buckets 2 are arranged at equal intervals from top to bottom, and the bottom surfaces of the screening buckets 2 are connected through discharge pipes 3, which penetrate the side wall of the screening drum 1. Screen holes are opened on the surface of the screening bucket 2, and the apertures of the screen holes on the surface of the screening bucket 2 decrease from top to bottom. A lifting platform 5 is arranged above the screening drum 1, and a driving motor 6 is fixedly installed on the top surface of the lifting platform 5, and a shaft rod 4 is installed on the output end of the driving motor 6, the shaft rod 4 penetrates the discharge pipe 3 and is slidably connected to the discharge pipe 3, and a rotating shaft 4 is fixedly sleeved on the surface of the shaft rod 4. Plate 13, and the side wall of the rotating plate 13 is located inside the screening bucket 2 and is fixedly connected to a rotating rod 15, a material-moving rod 16 is fixedly installed on the bottom surface of the rotating rod 15, a plug 11 is arranged below the rotating plate 13, and a rotating groove 12 is opened on the top surface of the plug 11, a rotating column 14 is fixedly connected to the bottom surface of the rotating plate 13, and the rotating column 14 is inserted into the rotating groove 12 and is rotatably connected to the rotating groove 12, the shaft rod 4 passes through the plug 11 and is slidably connected to the plug 11, and the outer surface of the shaft rod 4 is located below the plug 11 and is fixedly connected to a limiting ring 17, the diameter of the plug 11 is equal to the inner diameter of the bottom of the screening bucket 2, and an electric cylinder 9 is vertically installed between the lifting platform 5 and the top surface of the screening cylinder 1.

[0029] In this embodiment, when the corn seeds are screened and impurities are removed, the corn seeds can be put into the screening cylinder 1 from the feeding pipe 8, and the corn seeds fall into the uppermost screening bucket 2. The driving motor 6 drives the shaft 4 to rotate, thereby driving the rotating plate 13 and the rotating rod 15 to rotate, and driving the material shifting rod 16 to rotate, and the corn seeds are shifted. The corn seeds smaller than the sieve holes of the uppermost screening bucket 2 fall into the middle screening bucket 2, the corn seeds smaller than the sieve holes of the middle screening bucket 2 fall into the lowermost screening bucket 2, and the corn seeds smaller than the sieve holes of the lower screening bucket 2 fall into the lowermost screening bucket 2. The corn seeds and impurities in the sieve holes of the screening bucket 2 fall out of the screening cylinder 1, completing the grading and impurity removal screening. The screened corn seeds stay in the screening bucket 2 according to the particle grading. Then, the electric cylinder 9 can be started to extend, pushing the lifting platform 5 and the shaft rod 4 to move upward. The upward movement of the shaft rod 4 drives the limit ring 17 to move upward, pushing the plug 11 to move upward, and opening the bottom of the screening bucket 2. The corn seeds in the screening bucket 2 can flow out along the discharge pipe 3, completing the automatic grading and unloading, eliminating the trouble of manual grading and unloading, and significantly improving the convenience of use.

[0030] Specifically, a vibration motor 10 is fixedly mounted on the other side surface of the screening drum 1 , and a plurality of vibration motors 10 are arranged.

[0031] In this embodiment: the vibration motor 10 is started synchronously when the material moving rod 16 rotates, and the material moving rod 16 plays a stirring role to accelerate the screening of corn seeds. At the same time, the vibration motor 10 plays a vibrating role to further accelerate the screening of corn seeds, thereby improving the screening speed and work efficiency.

[0032] Specifically, the outward extension length of the discharge pipe 3 decreases from top to bottom.

[0033] In this embodiment, the discharge pipes 3 with different extension lengths are convenient for classification and collection.

[0034] Specifically, the material-moving rods 16 are densely distributed at equal intervals, and the bottom surfaces of the material-moving rods 16 are in sliding contact with the inner wall of the screening bucket 2 .

[0035] In this embodiment, the material-moving rods 16 and the rotating rods 15 are made of the same material, and the distance between the material-moving rods 16 is larger than the diameter of the corn seeds.

[0036] Specifically, a feed pipe 8 is connected through the top surface of the screening cylinder 1 , and a discharge port is provided on the bottom surface of the screening cylinder 1 .

[0037] In this embodiment, the feed pipe 8 is convenient for feeding, and the discharge port is convenient for directly discharging impurities and small-size corn seeds.

[0038] Specifically, a guide rod 7 is vertically fixedly installed on the top surface of the screening drum 1 , and the guide rod 7 passes through the lifting platform 5 and is slidably connected to the lifting platform 5 .

[0039] In this embodiment, the guide rod 7 is used as a guide for the lifting platform 5 to improve the stability of the lifting platform 5.

[0040] Specifically, the vertical cross-sections of the rotating groove 12 and the rotating column 14 are both convex-shaped, and the inner wall of the rotating groove 12 is polished.

[0041] In this embodiment, the rotating column 14 is coaxially arranged with the rotating groove 12 and the plug 11 .

[0042] Specifically, two ends of the electric cylinder 9 are fixedly connected to the lifting platform 5 and the screening drum 1 respectively.

[0043] In this embodiment: the electric cylinder 9 is arranged in parallel with the guide rod 7 .

[0044] Working principle: When screening and removing impurities from corn seeds, the corn seeds can be put into the screening cylinder 1 from the feeding pipe 8, and the corn seeds fall into the uppermost screening bucket 2. The driving motor 6 drives the shaft 4 to rotate, and then drives the rotating plate 13 and the rotating rod 15 to rotate, and drives the material-pickup rod 16 to rotate, and the corn seeds are moved. Corn seeds smaller than the sieve holes of the uppermost screening bucket 2 fall into the middle screening bucket 2, and corn seeds smaller than the sieve holes of the middle screening bucket 2 fall into the lowermost screening bucket 2. Corn seeds smaller than the sieve holes of the lowermost screening bucket 2 and impurities fall out of the screening cylinder 1, completing the graded impurity removal screening. The screened corn seeds are classified according to the particle size. The gear stays in the screening bucket 2, and then the electric cylinder 9 can be started to extend, pushing the lifting platform 5 and the shaft rod 4 to move upward. The upward movement of the shaft rod 4 drives the limit ring 17 to move upward, pushing the plug 11 to move upward, and opening the bottom of the screening bucket 2. The corn seeds in the screening bucket 2 can flow out along the discharge pipe 3, completing automatic grading and unloading, eliminating the trouble of manual grading and unloading, and significantly improving the convenience of use. At the same time, the vibration motor 10 is started synchronously when the material shifting rod 16 rotates. The material shifting rod 16 plays a stirring role to accelerate the screening of corn seeds. At the same time, the vibration motor 10 plays a vibrating role to further accelerate the screening of corn seeds, thereby improving the screening speed and work efficiency.

[0045] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A device for removing impurities from corn seeds, comprising a screening cylinder (1) and a screening bucket (2), characterized in that: A screening bucket (2) is fixedly installed inside the screening cylinder (1), and three screening buckets (2) are arranged at equal intervals from top to bottom, and the bottom surfaces of the screening buckets (2) are all connected with discharge pipes (3), and the discharge pipes (3) penetrate the side wall of the screening cylinder (1). Screen holes are opened on the surface of the screening bucket (2), and the apertures of the screen holes on the surface of the screening bucket (2) decrease from top to bottom. A lifting platform (5) is arranged above the screening cylinder (1), and a driving motor (6) is fixedly installed on the top surface of the lifting platform (5), and a shaft rod (4) is installed at the output end of the driving motor (6), and the shaft rod (4) penetrates the discharge pipe (3) and is slidably connected to the discharge pipe (3), and a rotating plate (13) is fixedly sleeved on the surface of the shaft rod (4), and the side wall of the rotating plate (13) is located at the screening bucket ( 2) A rotating rod (15) is fixedly connected to the inner side, and a material-moving rod (16) is fixedly installed on the bottom surface of the rotating rod (15). A plug (11) is arranged below the rotating plate (13), and a rotating groove (12) is provided on the top surface of the plug (11). A rotating column (14) is fixedly connected to the bottom surface of the rotating plate (13), and the rotating column (14) is inserted into the rotating groove (12) and is rotatably connected to the rotating groove (12). The shaft rod (4) passes through the plug (11) and is slidably connected to the plug (11), and a limiting ring (17) is fixedly connected to the outer surface of the shaft rod (4) below the plug (11). The diameter of the plug (11) is equal to the inner diameter of the bottom opening of the screening bucket (2). An electric cylinder (9) is vertically installed between the lifting platform (5) and the top surface of the screening cylinder (1).

2. The impurity removal and screening device for corn seeds according to claim 1, characterized in that: A vibration motor (10) is fixedly mounted on the other side surface of the screening drum (1), and a plurality of vibration motors (10) are arranged.

3. The impurity removal and screening device for corn seeds according to claim 1, characterized in that: The outward extension length of the discharge pipe (3) decreases from top to bottom.

4. The impurity removal and screening device for corn seeds according to claim 1, characterized in that: The material shifting rods (16) are densely distributed at equal intervals, and the bottom surfaces of the material shifting rods (16) are in sliding contact with the inner wall of the screening bucket (2).

5. The impurity removal and screening device for corn seeds according to claim 1, characterized in that: A feed pipe (8) is connected through the top surface of the screening cylinder (1), and a discharge port is provided on the bottom surface of the screening cylinder (1).

6. The impurity removal and screening device for corn seeds according to claim 1, characterized in that: A guide rod (7) is vertically fixedly mounted on the top surface of the screening cylinder (1), and the guide rod (7) passes through the lifting platform (5) and is slidably connected to the lifting platform (5).

7. The impurity removal and screening device for corn seeds according to claim 1, characterized in that: The vertical cross-sections of the rotating groove (12) and the rotating column (14) are both convex-shaped, and the inner wall of the rotating groove (12) is polished.

8. The impurity removal and screening device for corn seeds according to claim 1, characterized in that: The two ends of the electric cylinder (9) are respectively fixedly connected to the lifting platform (5) and the screening drum (1).

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