Corn breeding impurity removal device

Abstract

The invention discloses a corn breeding impurity removal device, and relates to the technical field of impurity removal screening equipment, the corn breeding impurity removal device comprises an impurity removal box and a control device arranged on the impurity removal box, and the impurity removal box is provided with a feed hopper communicated with the interior of the impurity removal box; the bearing frame is arranged in the impurity removal box, the sieve plate is fixedly arranged on the bearing frame, the vibration part is arranged on the inner wall of the impurity removal box, the driving mechanism is arranged on the impurity removal box, the power part is arranged on the arc-shaped block, the transmission part is arranged on the arc-shaped block, and the adjusting parts are arranged on the two sides of the transmission part. According to the corn seed screening device, the adjusting part is arranged, so that the passing area of screening holes in the screening plate can be adjusted, the corn seed screening device can meet the screening requirements of different corn seeds, and the application range of the corn seed screening device is enlarged to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of impurity removal and screening equipment, and in particular to an impurity removal device for corn breeding. Background Art

[0002] In the corn breeding process, impurity removal is the key to ensuring seed quality. High-quality corn seeds are of great significance for increasing corn yield per unit area, strengthening corn's ability to resist pests and diseases, and consolidating the foundation of food security. As a key device for removing various impurities from corn seeds, the performance of impurity removal equipment is directly related to breeding results.

[0003] At present, many types of corn breeding impurity removal equipment have emerged on the market. Among them, the vibrating screen impurity removal equipment relies on the vibration mechanism of the screen to achieve effective separation of seeds and impurities based on the difference in particle size; the airflow impurity removal equipment uses the principle of airflow dynamics to distinguish seeds and impurities based on the different floating characteristics they present in the airflow environment. However, the above common impurity removal equipment generally exposes a significant technical shortcoming, that is, the lack of adjustment function for the effective penetration area of ​​the sieve holes. In the actual corn breeding practice scenario, the particle size specifications of corn seeds and the physical properties of impurities show a high degree of diversity. There are obvious differences in the particle size distribution range of seeds of different corn varieties. When it is necessary to remove impurities from corn seeds with different particle size characteristics, it is difficult to achieve flexible adaptation of impurity removal equipment with a fixed sieve hole area. The technical status quo that the sieve hole penetration area cannot be flexibly adjusted seriously restricts the scope of application of impurity removal equipment, and it is difficult to meet the complex and diverse corn breeding impurity removal needs, so it is urgently needed to be improved. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a corn breeding impurity removal device, aiming to solve the technical problem that the sieve hole penetration area cannot be flexibly adjusted, thereby restricting the application scope of the impurity removal equipment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A corn breeding impurity removal device comprises an impurity removal box and a control device arranged on the impurity removal box, wherein the impurity removal box is provided with a feed hopper connected to the interior of the impurity removal box; the corn breeding impurity removal device further comprises: A first unloading plate is fixedly arranged on the impurity removal box, and is used to receive the corn seeds after impurity removal and discharge the corn seeds from the impurity removal box; A second unloading plate is fixedly arranged on the impurity removal box, and the second unloading plate is used to receive the screened impurities and discharge the impurities out of the impurity removal box; The carrying frame is arranged in the debris removal box, and the four corners of the carrying frame are provided with connecting parts; The sieve plate is fixedly arranged on the bearing frame, an arc block is fixedly arranged on the middle of the surface of the sieve plate close to the feed hopper, a plurality of sieve holes symmetrical to the arc block are opened on the sieve plate, and an adjustment slot penetrating the sieve plate is opened in the arc block; The vibrating parts have four groups, and the four groups of vibrating parts are symmetrically arranged on the inner wall of the impurity removal box in pairs, and the vibrating parts are used to assist the screen plate in screening corn seeds; The driving mechanism is arranged on the impurity removal box and is electrically connected to the control device; The power unit is arranged on the arc block and is electrically connected to the control device; The transmission part has multiple groups, and the multiple groups of transmission parts are equidistantly arranged on the arc block. Adjustment parts are arranged on both sides of the transmission part, and the adjustment parts are used to adjust the passing area of ​​the sieve hole to meet the screening needs of corn seeds of different sizes.

[0006] Preferably, a first enclosure plate is provided on the surface of the supporting frame close to the feed hopper.

[0007] Preferably, the connecting portion comprises: The connection block is fixedly arranged at the four corners of the bearing frame, and a built-in groove is opened in the connection block; The auxiliary wheel is located in the built-in groove and is rotatably connected to the connecting block.

[0008] Preferably, the vibration unit comprises: A fixed block is fixedly arranged on the inner wall of the impurity removal box, and a longitudinal groove is formed on the fixed block; A longitudinal rod is arranged in the longitudinal groove, and an end of the longitudinal rod is fixedly connected to the fixing block; The vibration block is passed through the longitudinal rod and is slidably connected with the fixed block; There are two vibration springs, and the two vibration springs are symmetrically arranged on the longitudinal rod with respect to the vibration block, and the vibration springs are always in a compressed state; The spacer block is fixedly arranged on the vibration block, and one end of the spacer block close to the connection block is fixedly connected to the connection block.

[0009] Preferably, the driving mechanism comprises: A first motor is fixedly mounted on the impurity removal box and electrically connected to the control device; A driving shaft is rotatably disposed on the impurity removal box, and one end of the driving shaft close to the first motor is fixedly connected to an output end of the first motor; A driving gear is fixedly arranged at an end of the driving shaft away from the first motor; The matching parts have two groups, and both groups of matching parts are arranged on the inner wall of the impurity removal box.

[0010] Preferably, the matching portion comprises: A support plate is fixedly arranged on the inner wall of the impurity removal box; The matching shaft is rotatably arranged on the support plate, and cams are fixedly arranged at both ends of the matching shaft, the cams are located directly below the auxiliary wheel, and the cams are rollingly connected to the auxiliary wheel; The driving wheel is fixedly arranged on the matching shaft, and the driving wheels on the two matching shafts are matched with pulleys for transmission; A driving shaft is fixedly arranged on the cam near the first motor, and the axis of the driving shaft coincides with the axis of the matching shaft; The driven gear is fixedly arranged on one end of the driving shaft close to the first motor, and the driven gear is meshed with the driving gear.

[0011] Preferably, the power unit comprises: A second motor is fixedly mounted on the arc block and electrically connected to the control device; The adjusting screw is rotatably arranged on the arc block, and one end of the adjusting screw close to the second motor is fixedly connected to the output end of the second motor.

[0012] Preferably, the transmission part comprises: The thread block is slidably disposed in the adjusting groove and is threadably connected with the adjusting screw; A transmission block is fixedly arranged on the threaded block; The adjusting block is fixedly arranged at one end of the transmission block away from the threaded block, and inclined surfaces are arranged at two ends of the adjusting block close to the adjusting part.

[0013] Preferably, the adjustment unit comprises: A fixing plate, fixedly arranged on the carrying frame; A support rod is fixedly arranged on the fixing plate, and a positioning plate is fixedly arranged on the support rod; The shielding part is arranged on the supporting rod, and is used for adjusting the passing area of ​​the sieve hole to meet the screening requirements of corn seeds of different sizes.

[0014] Preferably, the shielding portion comprises: A sliding block is slidably arranged on the support rod, a rod groove is provided in the sliding block, a positioning groove connected to the rod groove is provided in the sliding block, and a positioning plate is located on a side of the positioning groove close to an adjacent fixed plate in an initial state; A return spring is sleeved on the support rod and is located between the sliding block and the fixed plate. The return spring is always in a compressed state. The matching block is fixedly arranged on a side of the sliding block close to the adjusting block, and a side of the matching block close to the adjacent adjusting block is arranged as an inclined surface, and the inclined surface on the matching block contacts the inclined surface on the adjusting block, and the adjusting block is slidably connected with the matching block; There are two groups of shielding blocks, and the two groups of shielding blocks are symmetrically arranged on both sides of the sliding block. The shielding blocks are used to shield adjacent sieve holes to adjust the passing area of ​​the sieve holes.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The device is provided with an adjustment part, so that the device can adjust the passing area of ​​the sieve holes on the sieve plate, thereby making the device applicable to the screening requirements of different corn seeds, thereby increasing the application scope of the device to a certain extent.

[0016] 2. The device achieves impurity removal and screening of the corn seeds on the sieve plate by allowing the sieve plate to vibrate continuously during operation. At the same time, the vibration of the sieve plate causes the corn seeds and impurities on the sieve plate to continuously jump on the sieve plate. Since there is a difference in the quality of the corn seeds and the impurities, it is convenient to separate the corn seeds and the impurities. The separated impurities fall through the sieve holes on the sieve plate onto the second feeding plate below, and the screened corn seeds on the sieve plate finally fall onto the first feeding plate, thereby achieving impurity removal and screening of the corn seeds. It should be noted that the continuous vibration of the sieve plate also avoids impurities or corn seeds clogging the sieve holes to a certain extent, thereby affecting the impurity removal and screening efficiency of the corn seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 A three-dimensional structural schematic diagram of a corn breeding and impurity removal device is shown.

[0019] Figure 2 A front view of a corn breeding and weed removal device is shown.

[0020] Figure 3 Shows Figure 2 Sectional view of AA.

[0021] Figure 4 Shows Figure 3 A schematic diagram of the enlarged local structure at point A in the middle.

[0022] Figure 5 A right side view of a corn breeding and weed removal device is shown.

[0023] Figure 6 Shows Figure 5 Cross-sectional view of BB.

[0024] Figure 7 Shows Figure 6 A magnified schematic diagram of the local structure at point B in the middle.

[0025] Figure 8A top view of a corn breeding and weed removal device is shown.

[0026] Fig. 9 A partial structural schematic diagram of a corn breeding and impurity removal device is shown.

[0027] Fig.10 Shows Fig. 9 Enlarged schematic diagram of the local structure at point C in the middle.

[0028] Fig.11 Shows Fig. 9 Exploded view of the middle part of the structure.

[0029] Fig.12 Shows Fig.11 Schematic diagram of some structures in .

[0030] Fig.13 Shows Fig.12 A magnified schematic diagram of the local structure at point D in the middle.

[0031] Fig.14 Shows Fig.12 Schematic diagram of some structures in .

[0032] Fig.15 Shows Fig.14 Cross-sectional view of CC.

[0033] Fig.16 Shows Fig.15 Enlarged schematic diagram of the local structure at point E in the middle.

[0034] Legend: 1. De-dusting box; 2. Control device; 3. Feed hopper; 4. First unloading plate; 5. Second unloading plate; 6. Carrying frame; 7. Screen plate; 8. Arc block; 9. Screen hole; 10. Adjustment slot; 11. First enclosure; 12. Connecting block; 13. Built-in slot; 14. Auxiliary wheel; 15. Fixed block; 16. Vertical slot; 17. Vertical rod; 18. Vibration block; 19. Vibration spring; 20. Intermediate block; 21. First motor; 22. Drive shaft; 23. Driving gear; 24. Support plate; 25. Matching shaft; 26. Cam; 27. Driving wheel; 28. Driving shaft; 29. ​​Driven gear; 30. Second motor; 31. Adjusting screw; 32. Threaded block; 33. Transmission block; 34. Adjusting block; 35. Fixed plate; 36. Support rod; 37. Positioning plate; 38. Sliding block; 39. Rod groove; 40. Positioning groove; 41. Reset spring; 42. Matching block; 43. Blocking block. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] Reference Figures 1 to 16 , an embodiment of a corn breeding impurity removal device of the present invention is further described.

[0040] A corn breeding impurity removal device comprises an impurity removal box 1 and a control device 2 arranged on the impurity removal box 1, wherein the impurity removal box 1 is provided with a feed hopper 3 connected to the interior of the impurity removal box 1; the corn breeding impurity removal device further comprises: A first unloading plate 4 is fixedly arranged on the impurity removal box 1, and the first unloading plate 4 is used to receive the corn seeds after impurity removal and discharge the corn seeds from the impurity removal box 1; The second unloading plate 5 is fixedly arranged on the impurity removal box 1, and the second unloading plate 5 is used to receive the screened impurities and discharge the impurities out of the impurity removal box 1; The carrying frame 6 is arranged in the impurity removal box 1, and the four corners of the carrying frame 6 are provided with connecting parts, which include: The connecting block 12 is fixedly disposed at the four corners of the carrying frame 6, and a built-in groove 13 is opened in the connecting block 12; The auxiliary wheel 14 is located in the built-in groove 13 and is rotatably connected to the connecting block 12 .

[0041] It should be noted that, by providing an auxiliary wheel 14, the cam 26 can drive the connecting block 12 to move back and forth quickly through the auxiliary wheel 14, thereby avoiding direct contact between the cam 26 and the connecting block 12. The provision of the auxiliary wheel 14 greatly reduces the degree of wear on the surface of the cam 26.

[0042] A first enclosure plate 11 is provided on a surface of the supporting frame 6 close to the feed hopper 3 .

[0043] It should be noted that, by providing the first enclosure 11 on the supporting frame 6, it is prevented that corn seeds and impurities jump out of the sieve plate 7 when jumping on the sieve plate 7, thereby improving the screening effect of the device on corn seeds to a certain extent.

[0044] The sieve plate 7 is fixedly arranged on the bearing frame 6. An arc block 8 is fixedly arranged on the middle of the surface of the sieve plate 7 close to the feed hopper 3. A plurality of sieve holes 9 symmetrical to the arc block 8 are provided on the sieve plate 7. An adjustment slot 10 penetrating the sieve plate 7 is provided in the arc block 8. Reference Figures 1 to 16 The vibrating part has four groups, and the four groups of vibrating parts are symmetrically arranged on the inner wall of the impurity removal box 1 in pairs. The vibrating part is used to assist the screen plate 7 in screening corn seeds. The vibrating part includes: A fixing block 15 is fixedly arranged on the inner wall of the impurity removal box 1, and a longitudinal groove 16 is formed on the fixing block 15; A longitudinal rod 17 is disposed in the longitudinal groove 16, and an end of the longitudinal rod 17 is fixedly connected to the fixing block 15; The vibration block 18 is passed through the longitudinal rod 17 and is slidably connected to the fixed block 15; There are two vibration springs 19, and the two vibration springs 19 are symmetrically arranged on the longitudinal rod 17 with respect to the vibration block 18, and the vibration springs 19 are always in a compressed state; The spacer block 20 is fixedly disposed on the vibration block 18 , and one end of the spacer block 20 close to the connection block 12 is fixedly connected to the connection block 12 .

[0045] It should be noted that by arranging the vibration spring 19 on the longitudinal rod 17, when the connecting block 12 moves back and forth rapidly, the intermediate block 20 fixedly connected to the connecting block 12 can also move back and forth rapidly, so that the vibration block 18 fixedly connected to the intermediate block 20 moves back and forth rapidly on the longitudinal rod 17, thereby repeatedly compressing the vibration spring 19 on the longitudinal rod 17, so that the vibration spring 19 repeatedly stores and releases elastic potential energy, thereby ensuring the effect of rapid reciprocating movement of the vibration block 18 to a certain extent, and then ensuring the effect of rapid reciprocating movement of the connecting block 12.

[0046] Reference Figures 1 to 16 The driving mechanism is arranged on the impurity removal box 1 and is electrically connected to the control device 2. The driving mechanism includes: The first motor 21 is fixedly mounted on the impurity removal box 1 and electrically connected to the control device 2; The driving shaft 22 is rotatably disposed on the impurity removal box 1, and one end of the driving shaft 22 close to the first motor 21 is fixedly connected to the output end of the first motor 21; The driving gear 23 is fixedly disposed on an end of the driving shaft 22 away from the first motor 21; The matching parts have two groups, and both groups of matching parts are arranged on the inner wall of the impurity removal box 1, and the matching parts include: The support plate 24 is fixedly arranged on the inner wall of the impurity removal box 1; The matching shaft 25 is rotatably disposed on the support plate 24, and cams 26 are fixedly disposed at both ends of the matching shaft 25. The cams 26 are located directly below the auxiliary wheel 14, and the cams 26 are rollingly connected to the auxiliary wheel 14; The driving wheel 27 is fixedly arranged on the matching shaft 25, and the driving wheels 27 on the two matching shafts 25 are matched with pulley transmission; The driving shaft 28 is fixedly disposed on the cam 26 near the first motor 21, and the axis of the driving shaft 28 coincides with the axis of the matching shaft 25; The driven gear 29 is fixedly disposed on one end of the driving shaft 28 close to the first motor 21 , and the driven gear 29 is meshed with the driving gear 23 .

[0047] After adjusting the passing area of ​​the sieve hole 9, the staff puts the corn seeds to be screened into the impurity removal box 1 through the feed hopper 3, and the corn seeds entering the impurity removal box 1 fall onto the sieve plate 7, and then the staff controls the first motor 21 to start through the control device 2, so that the driving shaft 22 fixedly connected to the output end of the first motor 21 rotates, driving the driving gear 23 fixedly connected to the driving shaft 22 to rotate, so that the driven gear 29 meshing with the driving gear 23 rotates, driving the driving shaft 28 fixedly connected to the driven gear 29 to rotate, so that the cam 26 fixedly connected to the driving shaft 28 rotates, and then the matching shaft 25 fixedly connected to the cam 26 rotates, and through the pulley transmission cooperation between the driving wheels 27 on the matching shaft 25, the matching shaft 25 on the side away from the first motor 21 is driven to rotate, so that the The cams 26 at both ends of the mating shaft 25 rotate, and through the cooperation between the cams 26 and the auxiliary wheel 14, the auxiliary wheel 14 set in the built-in groove 13 can move back and forth rapidly while rolling, thereby driving the connecting block 12 rotatably connected to the auxiliary wheel 14 to move back and forth rapidly, thereby causing the supporting frame 6 fixedly connected to the connecting block 12 to vibrate, and then causing the sieve plate 7 set on the supporting frame 6 to vibrate. When the sieve plate 7 vibrates, impurities in the corn seeds fall through the sieve holes 9 on the sieve plate 7 onto the second feed plate 5 below, and finally slide out of the impurity removal box 1 through the second feed plate 5. The screened corn seeds move on the sieve plate 7 toward the first feed plate 4 until the screened corn seeds fall onto the first feed plate 4, and finally slide out of the impurity removal box 1 through the first feed plate 4, thereby realizing the impurity removal and screening of the corn seeds.

[0048] The device achieves impurity removal and screening of the corn seeds on the sieve plate 7 by allowing the sieve plate 7 to vibrate continuously during operation. At the same time, the vibration of the sieve plate 7 causes the corn seeds and impurities on the sieve plate 7 to continuously jump on the sieve plate 7. Since there is a difference in the quality of the corn seeds and the impurities, it is convenient to separate the corn seeds and the impurities. The separated impurities fall onto the second discharge plate 5 below through the sieve holes 9 on the sieve plate 7, and the screened corn seeds on the sieve plate 7 finally fall onto the first discharge plate 4, thereby achieving impurity removal and screening of the corn seeds. It should be noted that the continuous vibration of the sieve plate 7 also avoids the impurities or corn seeds clogging the sieve holes 9 to a certain extent, thereby affecting the impurity removal and screening efficiency of the corn seeds.

[0049] Reference Figures 1 to 16 , the power unit is arranged on the arc block 8 and is electrically connected to the control device 2, and the power unit includes: The second motor 30 is fixedly mounted on the arc block 8 and electrically connected to the control device 2; The adjusting screw 31 is rotatably disposed on the arc block 8 , and one end of the adjusting screw 31 close to the second motor 30 is fixedly connected to the output end of the second motor 30 .

[0050] The transmission part has multiple groups, and the multiple groups of transmission parts are equidistantly arranged on the arc block 8, and the transmission part includes: The thread block 32 is slidably disposed in the adjusting groove 10 and is threadedly connected with the adjusting screw 31; The transmission block 33 is fixedly arranged on the threaded block 32; The adjusting block 34 is fixedly arranged at one end of the transmission block 33 away from the threaded block 32, and the two ends of the adjusting block 34 close to the adjusting part are provided with inclined surfaces. Adjusting parts are arranged on both sides of the transmission part, and the adjusting parts are used to adjust the passing area of ​​the sieve hole 9 to meet the screening requirements of corn seeds of different sizes. The adjusting parts include: The fixing plate 35 is fixedly disposed on the carrying frame 6; A support rod 36 is fixedly disposed on the fixing plate 35, and a positioning plate 37 is fixedly disposed on the support rod 36; It should be noted that, by providing a positioning plate 37, in the initial state, the positioning plate 37 is located on the side of the positioning slot 40 close to the adjacent fixed plate 35, at which time the passing area of ​​the sieve hole 9 is the largest; when the positioning plate 37 is located on the side of the positioning slot 40 away from the adjacent fixed plate 35, the shielding plate completely blocks the sieve hole 9, that is, the passing area of ​​the sieve hole 9 is the smallest.

[0051] Reference Figures 1 to 16 , a shielding part is arranged on the support rod 36, and the shielding part is used to adjust the passing area of ​​the sieve hole 9 to adapt to the screening requirements of corn seeds of different sizes, and the shielding part includes: The sliding block 38 is slidably disposed on the support rod 36. A rod groove 39 is formed in the sliding block 38. A positioning groove 40 connected to the rod groove 39 is formed in the sliding block 38. In the initial state, the positioning plate 37 is located at a side of the positioning groove 40 close to the adjacent fixed plate 35; The return spring 41 is sleeved on the support rod 36 and is located between the sliding block 38 and the fixed plate 35. The return spring 41 is always in a compressed state. It should be noted that, by providing a return spring 41, when it is necessary to expand the passing area of ​​the sieve hole 9, the adjusting block 34 moves in the direction away from the second motor 30, so that the matching block 42 loses the force exerted by the adjusting block 34 on it. At this time, the compressed return spring 41 releases the elastic potential energy, thereby pushing the sliding block 38 to move in the direction of the adjacent adjusting block 34, so that the blocking block 43 fixedly connected to the sliding block 38 also moves in the direction of the adjacent adjusting block 34, thereby reducing the area of ​​the sieve hole 9 blocked by the baffle plate, thereby achieving the purpose of expanding the passing area of ​​the sieve hole 9.

[0052] The matching block 42 is fixedly arranged on a side of the sliding block 38 close to the adjusting block 34. The side of the matching block 42 close to the adjacent adjusting block 34 is set as an inclined surface, and the inclined surface on the matching block 42 contacts the inclined surface on the adjusting block 34. The adjusting block 34 is slidably connected with the matching block 42. There are two groups of shielding blocks 43 , and the two groups of shielding blocks 43 are symmetrically arranged on both sides of the sliding block 38 . The shielding blocks 43 are used to shield adjacent sieve holes 9 to adjust the passing area of ​​the sieve holes 9 .

[0053] The device is provided with an adjustment part, so that the device can adjust the passing area of ​​the sieve holes 9 on the sieve plate 7, thereby making the device applicable to the screening requirements of different corn seeds, thereby increasing the application scope of the device to a certain extent.

[0054] Working principle: Refer to Figures 1 to 16 Before screening the corn seeds, the size of the sieve holes 9 on the sieve plate 7 is adjusted according to the size of the corn seeds to be screened so as to meet the needs of removing impurities and screening of corn seeds of different sizes. The specific process is as follows: the staff controls the second motor 30 to start through the control device 2, so that the adjusting screw 31 fixedly connected to the output end of the second motor 30 rotates, and the screw transmission between the adjusting screw 31 and the threaded block 32 is matched, so that each threaded block 32 slides synchronously in the adjustment groove 10 toward the direction of the second motor 30, and then each transmission block 33 fixedly connected to each threaded block 32 slides synchronously in the direction of the second motor 30, driving the transmission of each transmission block Each adjusting block 34 fixedly connected to the adjusting block 33 slides synchronously in the direction of the second motor 30. During the sliding process of the adjusting block 34 in the direction of the second motor 30, the inclined surface on the adjusting block 34 continuously applies a force to the inclined surface on the matching block 42, so that the matching block 42 moves in a direction away from the adjusting block 34, and then the sliding block 38 fixedly connected to the matching block 42 moves in a direction away from the adjusting block 34, so that the blocking block 43 arranged on the sliding block 38 moves in a direction away from the adjusting block 34, thereby correspondingly blocking the sieve holes 9 on the sieve plate 7 until the passing area of ​​the sieve holes 9 is adjusted to match the screening requirements of the corn seeds to be screened; After adjusting the passing area of ​​the sieve hole 9, the staff puts the corn seeds to be screened into the impurity removal box 1 through the feed hopper 3, and the corn seeds entering the impurity removal box 1 fall onto the sieve plate 7, and then the staff controls the first motor 21 to start through the control device 2, so that the driving shaft 22 fixedly connected to the output end of the first motor 21 rotates, driving the driving gear 23 fixedly connected to the driving shaft 22 to rotate, so that the driven gear 29 meshing with the driving gear 23 rotates, driving the driving shaft 28 fixedly connected to the driven gear 29 to rotate, so that the cam 26 fixedly connected to the driving shaft 28 rotates, and then the matching shaft 25 fixedly connected to the cam 26 rotates, and through the pulley transmission cooperation between the driving wheels 27 on the matching shaft 25, the matching shaft 25 on the side away from the first motor 21 is driven to rotate, so that the The cams 26 at both ends of the mating shaft 25 rotate, and through the cooperation between the cams 26 and the auxiliary wheel 14, the auxiliary wheel 14 set in the built-in groove 13 can move back and forth rapidly while rolling, thereby driving the connecting block 12 rotatably connected to the auxiliary wheel 14 to move back and forth rapidly, thereby causing the supporting frame 6 fixedly connected to the connecting block 12 to vibrate, and then causing the sieve plate 7 set on the supporting frame 6 to vibrate. When the sieve plate 7 vibrates, impurities in the corn seeds fall through the sieve holes 9 on the sieve plate 7 onto the second feed plate 5 below, and finally slide out of the impurity removal box 1 through the second feed plate 5. The screened corn seeds move on the sieve plate 7 toward the first feed plate 4 until the screened corn seeds fall onto the first feed plate 4, and finally slide out of the impurity removal box 1 through the first feed plate 4, thereby realizing the impurity removal and screening of the corn seeds.

[0055] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A corn breeding impurity removal device, comprising an impurity removal box (1) and a control device (2) arranged on the impurity removal box (1), wherein the impurity removal box (1) is provided with a feed hopper (3) which is in communication with the interior of the impurity removal box (1); characterized in that: Also includes: A first unloading plate (4) is fixedly mounted on the impurity removal box (1); A second blanking plate (5) is fixedly mounted on the impurity removal box (1); A carrying frame (6) is arranged in the impurity removal box (1), and connecting parts are arranged at the four corners of the carrying frame (6); A sieve plate (7) is fixedly mounted on the supporting frame (6); an arc block (8) is fixedly mounted on the middle of the surface of the sieve plate (7) near the feed hopper (3); a plurality of sieve holes (9) symmetrical with respect to the arc block (8) are formed on the sieve plate (7); and an adjustment slot (10) penetrating the sieve plate (7) is formed in the arc block (8); The vibration parts have four groups, and the four groups of vibration parts are symmetrically arranged in pairs on the inner wall of the impurity removal box (1), and the vibration parts are used to assist the screen plate (7) in screening corn seeds; A driving mechanism is arranged on the impurity removal box (1) and is electrically connected to the control device (2); A power unit, which is arranged on the arc block (8) and is electrically connected to the control device (2); The transmission part has a plurality of groups, and the plurality of groups of transmission parts are equidistantly arranged on the arc block (8). Adjustment parts are arranged on both sides of the transmission part, and the adjustment parts are used to adjust the passing area of ​​the sieve hole (9) to meet the screening requirements of corn seeds of different sizes.

2. A corn breeding impurity removal device according to claim 1, characterized in that: A first enclosure plate (11) is provided on a surface of the supporting frame (6) close to the feed hopper (3).

3. A corn breeding impurity removal device according to claim 1, characterized in that: The connection part includes: A connecting block (12) is fixedly arranged at four corners of the carrying frame (6), and a built-in groove (13) is provided in the connecting block (12); The auxiliary wheel (14) is located in the built-in groove (13) and is rotationally connected to the connecting block (12).

4. A corn breeding impurity removal device according to claim 3, characterized in that: The vibration part includes: A fixed block (15) is fixedly mounted on the inner wall of the impurity removal box (1), and a longitudinal groove (16) is formed on the fixed block (15); A longitudinal rod (17) is disposed in the longitudinal groove (16), and an end of the longitudinal rod (17) is fixedly connected to the fixing block (15); A vibration block (18) is passed through the longitudinal rod (17) and is slidably connected to the fixed block (15); There are two vibration springs (19), and the two vibration springs (19) are symmetrically arranged on the longitudinal rod (17) with respect to the vibration block (18), and the vibration springs (19) are always in a compressed state; The spacer block (20) is fixedly arranged on the vibration block (18), and one end of the spacer block (20) close to the connection block (12) is fixedly connected to the connection block (12).

5. A corn breeding impurity removal device according to claim 4, characterized in that: The driving mechanism includes: A first motor (21) is fixedly mounted on the impurity removal box (1) and is electrically connected to the control device (2); A drive shaft (22) is rotatably disposed on the impurity removal box (1), and one end of the drive shaft (22) close to the first motor (21) is fixedly connected to an output end of the first motor (21); A driving gear (23) fixedly disposed on an end of the driving shaft (22) away from the first motor (21); The matching parts have two groups, and both groups of matching parts are arranged on the inner wall of the impurity removal box (1).

6. A corn breeding impurity removal device according to claim 5, characterized in that: The matching part includes: A support plate (24) is fixedly arranged on the inner wall of the impurity removal box (1); A matching shaft (25) is rotatably disposed on the support plate (24), and cams (26) are fixedly disposed at both ends of the matching shaft (25), the cams (26) are located directly below the auxiliary wheel (14), and the cams (26) are rollingly connected to the auxiliary wheel (14); The driving wheel (27) is fixedly arranged on the matching shaft (25), and the driving wheels (27) on the two matching shafts (25) are matched with the pulley transmission; A driving shaft (28) is fixedly disposed on the cam (26) on a side close to the first motor (21), and the axis of the driving shaft (28) coincides with the axis of the matching shaft (25); The driven gear (29) is fixedly arranged on one end of the driving shaft (28) close to the first motor (21), and the driven gear (29) is meshed with the driving gear (23).

7. A corn breeding impurity removal device according to claim 6, characterized in that: The power department includes: A second motor (30) is fixedly mounted on the arc block (8) and is electrically connected to the control device (2); The adjusting screw rod (31) is rotatably disposed on the arc-shaped block (8), and one end of the adjusting screw rod (31) close to the second motor (30) is fixedly connected to the output end of the second motor (30).

8. The corn breeding impurity removal device according to claim 7, characterized in that: The transmission part includes: A threaded block (32) is slidably disposed in the adjustment groove (10) and is threadably connected to the adjustment screw (31); A transmission block (33) is fixedly mounted on the threaded block (32); The adjustment block (34) is fixedly arranged at one end of the transmission block (33) away from the threaded block (32), and inclined surfaces are arranged at both ends of the adjustment block (34) close to the adjustment portion.

9. A corn breeding impurity removal device according to claim 8, characterized in that: The regulation department includes: A fixing plate (35) fixedly disposed on the carrying frame (6); A support rod (36) is fixedly mounted on the fixing plate (35), and a positioning plate (37) is fixedly mounted on the support rod (36); The shielding portion is arranged on the support rod (36), and is used to adjust the passing area of ​​the sieve hole (9) to meet the screening requirements of corn seeds of different sizes.

10. The corn breeding impurity removal device according to claim 9, characterized in that: The shielding part includes: A sliding block (38) is slidably disposed on the support rod (36), a rod groove (39) is provided in the sliding block (38), a positioning groove (40) is provided in the sliding block (38) and is communicated with the rod groove (39), and the positioning plate (37) is located on a side of the positioning groove (40) close to the adjacent fixed plate (35) in an initial state; A return spring (41) is sleeved on the support rod (36), and the return spring (41) is located between the sliding block (38) and the fixed plate (35), and the return spring (41) is always in a compressed state; A matching block (42) is fixedly arranged on a side of the sliding block (38) close to the adjusting block (34); a side of the matching block (42) close to the adjacent adjusting block (34) is arranged as an inclined surface; the inclined surface on the matching block (42) contacts the inclined surface on the adjusting block (34); and the adjusting block (34) and the matching block (42) are slidably connected; The shielding blocks (43) have two groups, and the two groups of shielding blocks (43) are symmetrically arranged on both sides of the sliding block (38). The shielding blocks (43) are used to shield adjacent sieve holes (9) to adjust the passing area of ​​the sieve holes (9).

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