CN220836526U - Vegetable seed sieving mechanism - Google Patents

Abstract

The application discloses a vegetable seed screening device, which comprises a screening body, wherein the screening body sequentially comprises a first-stage screening box, a second-stage screening box and a third-stage screening box from left to right, a first screen is obliquely arranged in the first-stage screening box, a first material conveying opening is formed between the first-stage screening box and the second-stage screening box, a second screen and a third screen which are positioned below the first material conveying opening are arranged in the second-stage screening box, a fourth screen is obliquely arranged in the third-stage screening box, impurity particles larger and smaller than seeds are removed by multistage screening respectively, the impurity removing effect is better, the third screen is utilized for repeatedly screening the seeds, small particle impurities are prevented from being mixed in the seeds, and large particle impurities falling into the third-stage screening box are screened again, so that the large particle impurities are prevented from containing the seeds.

Description

Vegetable seed sieving mechanism

Technical Field

The utility model relates to the technical field of vegetable planting, in particular to a vegetable seed screening device.

Background

The screening of the seeds of vegetables is very important in the process of planting, the germination rate of the filled seeds is good in the process of cultivating, the growth vigor of the vegetables is good, the germination rate of the non-filled and shrunken seeds is reduced or zero, the growth vigor of the vegetables cannot reach the expected effect, and in order to solve the problem from the root, the seeds need to be screened in order to improve the germination rate.

At present, the process of screening seeds mostly takes a single screen as a main material, so that in the screening process, only partial impurities can be removed, the screening effect is poor, the seeds are required to be thrown into a screening device again for multiple screening, and the screening efficiency is too low.

Disclosure of utility model

The application aims to provide a vegetable seed screening device, which aims to solve the problems that in the prior art, most of vegetable seeds are mainly single screen, so that only partial impurities can be removed in the screening process, the screening effect is poor, the seeds need to be put into the screening device again for multiple screening, and the screening efficiency is too low.

In order to solve the technical problems, the application provides a vegetable seed screening device, which comprises a screening body, wherein the screening body sequentially comprises a first-stage screening box, a second-stage screening box and a third-stage screening box from left to right, the top of the first-stage screening box is communicated with a feed hopper, a first screen is obliquely arranged in the first-stage screening box, a first material conveying port is formed between the first-stage screening box and the second-stage screening box, the upper surface of one end of the first screen is flush with the lower side of the first material conveying port, a second screen and a third screen which are positioned below the first material conveying port are arranged in the second-stage screening box, a second material conveying port and a third material conveying port are formed between the second-stage screening box and the third-stage screening box, a fourth screen is obliquely arranged in the third-stage screening box, connecting rods fixed on the inner wall of the screening body are respectively inserted below the first screen and the fourth screen, and vibrators are respectively arranged at the bottoms of the first screen and the fourth screen;

The mesh inner diameters of the first screen and the third screen are smaller than the mesh inner diameter of the second screen, and the mesh inner diameter of the fourth screen is equal to the mesh inner diameter of the second screen.

Preferably, penetrating holes penetrating the connecting rods are formed below the first screen and the fourth screen, and the inner diameter of each penetrating hole is larger than the outer diameter of each connecting rod.

Preferably, one side of the second screen mesh and one side of the third screen mesh are all arranged in a downward inclined mode, the second screen mesh and the other side of the third screen mesh are all connected with the inner side wall of the secondary screening box in a rotating mode, a driving motor is fixedly arranged on the back face of the secondary screening box, the tail end of an output shaft of the driving motor penetrates through the back face of the secondary screening box and extends to the lower portion of the third screen mesh, a cam is fixedly connected with the lower end of the third screen mesh, and a protruding portion of the cam is in abutting contact with the lower end of the third screen mesh.

Preferably, the inside wall of second grade screening case one side is all fixedly connected with two sets of fixed blocks, every group the fixed block is two, every group the opposite lateral wall of fixed block all through the pivot respectively with the second screen cloth with the opposite lateral wall of third screen cloth rotates to be connected.

Preferably, the third-stage screening box is far away from one side of the second-stage screening box and is provided with an impurity discharging hole, and the fourth screen is obliquely arranged above the impurity discharging hole.

Preferably, the bottoms of the primary screening box, the secondary screening box and the tertiary screening box are all conical.

Preferably, the bottom of the first-stage screening box is provided with a first waste outlet, the bottom of the second-stage screening box is provided with a second waste outlet, and the bottom of the third-stage screening box is provided with a top-quality discharge port.

According to the vegetable seed screening device, when the vegetable seed screening device is in actual use, the mesh opening of the first screen is smaller than that of the second screen, the mesh opening of the first screen is smaller than the particle diameter of seeds, the seeds entering the first-stage screening box fall onto the first screen, impurities with smaller diameters and shrunken seeds fall into the bottom of the first-stage screening box through the first screen, other seeds enter the second-stage screening box through the first material conveying opening, the mesh opening of the second screen is smaller than the particle diameter of the seeds, the seeds meeting the use requirement fall onto the third screen through the second screen, the impurities with larger than the particle diameter of the seeds are conveyed to the fourth screen from the second material conveying opening along the surface of the second screen, the fourth screen screens the seeds mixed in the impurities to the bottom of the third-stage screening box, the mesh opening of the third screen is smaller than the particle diameter of the seeds, and the shrunken seeds which do not meet the use requirement are screened again, and the seeds enter the bottom of the third-stage screening box along the surface of the third screen. Adopt first screening plant, second screening plant and third screening plant to screen the seed jointly, the screen cloth of difference filters the impurity of different granule sizes respectively, in the screening process, utilize the electromagnetic shaker constantly to shake first screen cloth and fourth screen cloth, make the seed can the quick landing, avoid piling up the jam, multistage screening is got rid of the impurity granule bigger than seed big and little respectively, edulcoration effect is better, utilize the third screen cloth to carry out repeated screening to the seed, prevent that the small granule impurity from mixing in the seed, carry out the screening once more to the large granule impurity that falls into tertiary screening case, prevent to contain the seed in the large granule impurity.

Drawings

For a clearer description of the technical solutions of the present application, the drawings that are required to be used in the embodiments will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without making any effort.

Fig. 1 is a schematic structural diagram of a vegetable seed screening device provided by the utility model;

FIG. 2 is a schematic view of the back structure of the first screen provided by the present utility model;

FIG. 3 is a schematic view of the back of the secondary screening box;

In the figure: 1. a feed hopper; 2. a first stage screening box; 20. a first waste outlet; 21. a first screen; 22. a first material conveying port; 3. a secondary screening box; 30. a second waste outlet; 31. a second screen; 32. a second material conveying port; 33. a third screen; 34. a third material conveying port; 41. a transmission rod; 42. a driving motor; 43. a cam; 44. a fixed block; 5. a three-stage screening box; 50. a top-quality discharge port; 51. a fourth screen; 52. an impurity discharge port; 61. a connecting rod; 62. penetrating the jack; 63. a vibrator.

Detailed Description

In order to enable those skilled in the art to better understand the technical solutions of the present application, the following description will make clear and complete descriptions of the technical solutions of the embodiments of the present application with reference to the accompanying drawings.

The application aims at providing a vegetable seed screening device, which solves the problems that in the prior art, most of vegetable seeds are mainly single screen, so that only partial impurities can be removed in the screening process, the screening effect is poor, the seeds need to be put into the screening device again for multiple screening, and the screening efficiency is too low.

Fig. 1 is a schematic structural view of a vegetable seed screening device provided by the utility model, fig. 2 is a schematic structural view of a back of a first screen provided by the utility model, and fig. 3 is a schematic structural view of a back of the secondary screening box, which is shown in fig. 1to 3.

The utility model provides a vegetable seed sieving mechanism, including screening the body, screening the body is from left to right including one-level screening case 2 in proper order, second grade screening case 3 and tertiary screening case 5, the top intercommunication of one-level screening case 2 is provided with feeder hopper 1, the seed that will need screen is added one-level screening case 2 through the feeder hopper in, one-level screening case 2 internal inclination is provided with first screen cloth 21, first screen cloth 21 slope sets up right, and first delivery port 22 has been seted up between one-level screening case 2 and the second grade screening case 3, the connecting rod 61 at screening body inner wall is all alternatingly to the below of first screen cloth 21, the bottom of first screen cloth 21 and fourth screen cloth 51 all is provided with vibrator 63, utilize vibrator 63 constantly to shake first screen cloth 21, make the seed can the quick landing, avoid piling up the jam, the one end upper surface of first screen cloth 21 and the downside parallel and level of first delivery port 22, the diameter is less than the impurity of the mesh of first screen cloth 21 and the flat seed of first screen cloth 21 fall into the bottom of one-level screening case 2 through first screen cloth 21, be provided with the second screen cloth 3 in second grade screening case 3 and be located first delivery port 22 below second screen cloth 31 and second screen cloth 32, second screen cloth 32 is located second screen cloth 32 along second screen cloth 31 and third screen cloth 31 side 32, second screen cloth 32 is located second screen cloth 32 export 32, third screen cloth 32 is located second screen cloth 32. In order to prevent the seeds screened from the second screen 31 from containing small particle impurities which are not separated, a third screen 33 is provided below the second screen 31, and the mesh of the third screen 33 is smaller than the particle diameter of the seeds, so that the small particle impurities mixed in the seeds fall to the bottom of the secondary screening box 3 through the third screen 33, and the seeds enter the inside of the tertiary screening box 5 through a third feed port 34. The third-stage screening box 5 is internally and obliquely provided with a fourth screen 51, the fourth screen 51 is positioned below the second material conveying opening 32, the third material conveying opening 34 is positioned above, large-particle impurities screened out of the second screen 31 fall onto the fourth screen 51, the mesh diameter of the fourth screen 51 is equal to that of the second screen 31, and therefore seeds mixed in the large-particle impurities fall into the bottom of the third-stage screening box 5 again through the fourth screen 51 and are separated from the large-particle impurities. A connecting rod 61 fixed to the inner wall of the screening body is inserted under the fourth screen 51, and vibrators 63 are provided at the bottoms of the first screen 21 and the fourth screen 51, so that seeds mixed with large-particle impurities are sufficiently separated by the vibrators 63.

In order to better fix the first screen 21 and the fourth screen 51 in the screening body, it is preferable that the penetration holes 62 penetrating the connection rod 61 are provided below each of the first screen 21 and the fourth screen 51, and the inner diameter of the penetration holes 62 is larger than the outer diameter of the connection rod 61. The connecting rod 61 can move in the penetration hole 62.

In order to further improve screening efficiency, preferably, one side of the second screen mesh 31 and one side of the third screen mesh 33 are all inclined downwards, the other side of the second screen mesh 31 and the other side of the third screen mesh 33 are all connected with the inner side wall of the secondary screening box 3 in a rotating way, the front side and the rear side of one end of the second screen mesh 31 and the other side of the third screen mesh 33, which are inclined downwards, are fixedly connected with first rotating shafts, the two first rotating shafts on the same side are connected with a transmission rod 41 in a rotating way, the back surface of the secondary screening box 3 is fixedly provided with a driving motor 42, the driving motor 42 is electrically connected with an external power supply through a control switch, the technology is widely applied in life, and the skilled person should know that excessive redundant description is not needed. The output shaft end of the driving motor 42 penetrates through the back of the secondary screening box 3 and extends to the lower side of the third screen 33 and is fixedly connected with the cam 43, the protruding portion of the cam 43 is abutted against the lower end of the third screen 33, when the screening box is in actual use, the driving motor 42 is turned on, the cam 43 can be driven to rotate, the cam 43 is abutted against the lower end of the third screen 33, one end of the third screen 33, which is inclined downwards, can be enabled to move upwards, the third screen 33 can drive one end of the second screen 31, which is inclined downwards, to move upwards through the transmission rod 41, and then the second screen 31 and the third screen 33 can vibrate simultaneously, and screening efficiency of seeds is improved.

In this embodiment, preferably, two groups of fixing blocks 44 are fixedly connected to the inner side wall on one side of the secondary screening box 3, each group of fixing blocks 44 is two, and opposite side walls of each group of fixing blocks 44 are respectively and rotatably connected with opposite side walls of the second screen 31 and the third screen 33 through second rotating shafts. The opposite side walls of the second screen 31 and the third screen 33 are rotatably connected, so that the second screen 31 and the third screen 33 can move up and down when contacting the cam 43, thereby improving the screening efficiency and preventing the second screen 31 and the third screen 33 from being damaged.

For more convenience in discharging large-particle impurities, preferably, an impurity discharge port 52 is formed in one side of the third-stage screening box 5 away from the second-stage screening box 3, and a fourth screen 51 is obliquely arranged above the impurity discharge port 52. The large-particle impurities left on the surface of the fourth screen 51 are directly discharged from the impurity discharge port 52.

For convenient quick discharge, preferably, the bottoms of the primary screening box 2, the secondary screening box 3 and the tertiary screening box 5 are all tapered, so that the materials falling into the bottoms of the primary screening box 2, the secondary screening box 3 and the tertiary screening box 5 can be rapidly discharged. Preferably, the first waste outlet 20 is formed in the bottom of the first-stage screening box 2, the second waste outlet 30 is formed in the bottom of the second-stage screening box 3, and the fine product discharge outlet 50 is formed in the bottom of the third-stage screening box 5. The separated small particle impurities are discharged from the first and second waste outlets 20 and 30, and the screened fine seeds are discharged through the fine seed discharge outlet.

According to the vegetable seed screening device provided by the application, the vegetable seeds to be screened are added into the first-stage screening box 2 through the feed hopper 1, the seeds fall on the first screen 21, the vibrator 63 at the bottom of the first screen 21 is started, the vibrator 63 drives the second screen 31 to vibrate up and down and automatically screen, impurities with diameters smaller than the meshes of the first screen 21 and shriveled seeds fall on the bottom of the first-stage screening box 2 and are discharged through the first waste outlet 20, the seeds with diameters larger than the meshes of the first screen 21 and large-particle impurities enter the second-stage screening box 3 through the first material conveying opening 22, the mesh diameter of the second screen 31 is larger than the diameters of the seeds, the driving motor 42 is turned on, the cam 43 can be driven to rotate, the cam 43 is enabled to be in contact with the lower end of the third screen 33 in a propping mode, one end of the third screen 33 which is inclined downwards can be driven to move upwards, the second screen 31 and the third screen 33 can be enabled to simultaneously generate vibration along the second-stage screening box 32, and the large-particle impurities of the second screen 33 can be discharged out of the second screen 32 along the second-stage screening box 31 through the driving rod 41. The mesh of the third screen 33 is smaller than the particle diameter of the seeds, so that the small particle impurities mixed in the seeds fall to the bottom of the secondary screening box 3 through the third screen 33, the seeds enter the tertiary screening box 5 through the third feed inlet 34, and the small particle impurities separated again are discharged out of the secondary screening box 3 through the second waste outlet 30. The mesh diameter of the fourth screen 51 is equal to the mesh diameter of the second screen 31, and the seeds mixed with the large-particle impurities are sufficiently separated by the vibrator 63, so that the seeds mixed with the large-particle impurities fall into the bottom of the three-stage screening box 5 again through the fourth screen 51, the satisfactory seeds are discharged out of the three-stage screening box 5 through the fine discharge port 50, and the large-particle impurities are discharged out through the impurity discharge port 52.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the application being indicated by the following claims.

It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The embodiments of the present application described above do not limit the scope of the present application.

Claims (7)

1. A vegetable seed sieving mechanism, characterized in that includes:

The screening body, the screening body is from left to right including one-level screening case (2), second grade screening case (3) and tertiary screening case (5) in proper order, the top intercommunication of one-level screening case (2) is provided with feeder hopper (1), first screen cloth (21) have been offered to the slope in one-level screening case (2), one-level screening case (2) with first material conveying mouth (22) have been offered between second grade screening case (3), one end upper surface of first screen cloth (21) with the downside parallel and level of first material conveying mouth (22), be provided with in second grade screening case (3) and be located second screen cloth (31) and third screen cloth (33) of first material conveying mouth (22) below, second screen cloth (3) with have offered second material conveying mouth (32) and third material conveying mouth (34) between tertiary screening case (5), fourth screen cloth (51) have been installed to the slope in three-level screening case (5), first screen cloth (21) and fourth screen cloth (61) are all provided with vibration ware (61) in the bottom of first screen cloth (51);

The mesh inner diameters of the first screen (21) and the third screen (33) are smaller than the mesh inner diameter of the second screen (31), and the mesh inner diameter of the fourth screen (51) is equal to the mesh inner diameter of the second screen (31).

2. Vegetable seed screening device according to claim 1, characterized in that the first screen (21) and the fourth screen (51) are provided with penetration holes (62) penetrating the connecting rod (61) below, and the inner diameter of the penetration holes (62) is larger than the outer diameter of the connecting rod (61).

3. The vegetable seed screening device according to claim 1, wherein one side of the second screen (31) and one side of the third screen (33) are obliquely arranged downwards, the other side of the second screen (31) and the other side of the third screen (33) are rotationally connected with the inner side wall of the second screen box (3), the front side and the rear side of one end of the second screen (31) and the other side of the third screen (33) which are obliquely arranged downwards are fixedly connected with first rotating shafts, a transmission rod (41) is jointly rotationally connected between the two first rotating shafts on the same side, a driving motor (42) is fixedly arranged on the back surface of the second screen box (3), the tail end of an output shaft of the driving motor (42) penetrates through the back surface of the second screen box (3) and extends to the lower side of the third screen (33) and is fixedly connected with a cam (43), and a protruding part of the cam (43) is in contact with the lower end of the third screen (33).

4. A vegetable seed screening device according to claim 3, wherein two groups of fixing blocks (44) are fixedly connected to the inner side wall of one side of the secondary screening box (3), each group of fixing blocks (44) is two, and the opposite side walls of each group of fixing blocks (44) are respectively connected with the opposite side walls of the second screen (31) and the third screen (33) in a rotating manner through second rotating shafts.

5. The vegetable seed screening device according to claim 1, wherein an impurity discharging port (52) is formed in a side, away from the secondary screening box (3), of the tertiary screening box (5), and the fourth screen (51) is obliquely arranged above the impurity discharging port (52).

6. The vegetable seed screening device according to claim 1, wherein the bottoms of the primary screening box (2), the secondary screening box (3) and the tertiary screening box (5) are all tapered.

7. The vegetable seed screening device according to claim 1, wherein a first waste outlet (20) is formed in the bottom of the primary screening box (2), a second waste outlet (30) is formed in the bottom of the secondary screening box (3), and a fine product discharge port (50) is formed in the bottom of the tertiary screening box (5).