A corn seed screening and impurity removal device

Abstract

This utility model relates to the field of material screening and sieving technology, and discloses a corn seed screening and impurity removal device, including a support frame with two drive shafts rotatably connected inside the support frame. A screening device is sleeved on the outside of the two drive shafts. A feeding device is provided above one end of the screening device, and a blowing device and an impurity discharge port are provided inside the screening device. An impurity removal device is provided above the screening device, and a vibration motor is provided below the screening device. A qualified product discharge port is provided at the end of the screening device away from the feeding device. By setting grooves and screen holes on the conveyor belt, the corn seeds are spread flat in the grooves during vibration, avoiding the screen holes from being blocked by the stacking and compression of the corn seeds, which would affect the screening work. The blowing device blows air upward through the through holes, which, together with the impurity removal device, screens hollow and necrotic corn seeds, thereby improving the qualified rate of the finished corn seed product.

Description

Technical Field

[0001] This utility model relates to the field of material screening and sieving technology, specifically to a corn seed screening and impurity removal device. Background Technology

[0002] my country is a major agricultural country, and corn is one of its staple grains and a source of livestock feed. Corn seed treatment is a crucial step in achieving high corn yields. Among these steps, corn seed screening is an important task in agricultural production, primarily aimed at removing impurities from harvested grains to ensure the quality of corn seeds. However, manually removing defective products is inefficient and has a low rejection rate. For example, when there is a large quantity of materials (such as granular food or seeds) on the conveyor platform and the conveying speed is fast, or when the inherent defect rate of the materials is high, it is impossible to remove all defective products manually in a timely manner. Furthermore, when materials are piled up on the conveyor platform, it is difficult to detect defective products among the piled materials.

[0003] Chinese patent CN219965529U discloses a corn seed screening machine, including a screening machine support frame. The outer surfaces of the inner two ends of the screening machine support frame are fixedly connected to the outer surfaces of the two ends of the support column. The outer surface of the upper end of the support column is detachably connected to the outer surface of the lower end of the motor support plate by screws. The outer surface of the upper end of the motor support plate is fixedly connected to the lower end of the outer wall of the control motor. The outer surface of the upper end of the screening machine support frame is fixedly connected to the outer surface of the lower end of the feeding hopper. A feeding control groove is opened on one side of the outer surface of the upper end of the feeding hopper, and a feeding port is opened on the outer surface of the front end of the feeding hopper.

[0004] However, the screen of this corn seed screening machine is prone to clogging, causing corn seeds to accumulate on the screen, thus affecting the working efficiency of the screening machine; therefore, those skilled in the art provide a corn seed screening and impurity removal device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a corn seed screening and impurity removal device to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a corn seed screening and impurity removal device, including a support frame, two drive shafts for transporting corn seeds are rotatably connected inside the support frame, a screening device for screening corn seeds is sleeved on the outside of the two drive shafts, a feeding device for storing corn seeds before screening is provided above one end of the screening device, a blowing device for removing impurities from corn seeds is provided inside the screening device, an impurity discharge port is also provided inside the screening device, an impurity removal device for removing impurities from corn seeds is provided above the screening device, a vibration motor is provided below the screening device, and a qualified product discharge port is provided at the end of the screening device away from the feeding device;

[0007] The vibration motor vibrates the screening device, causing the corn seeds placed on the screening device to be evenly spread on the upper part of the screening device, avoiding the corn seeds being squeezed on the upper part of the screening device, which would cause impurities to accumulate inside the corn seeds and go undetected.

[0008] As a preferred embodiment of the above technical solution, the two drive shafts are located on both sides of the support frame away from the center, and both drive shafts are movably connected to the inner wall of the support frame. A first motor is fixedly installed on the outer wall of the support frame, and the output shaft of the first motor passes through the side wall of the support frame and is fixedly connected to the center of the end face of the drive shaft.

[0009] The first motor is fixed on the side wall of one side of the support frame. After the first motor is started, it causes the transmission shaft to rotate through the motor output shaft.

[0010] As a preferred embodiment of the above technical solution, the screening device includes a conveyor belt, the surface of which is provided with a plurality of grooves, and the bottom walls of the plurality of grooves are provided with sieve holes that penetrate the conveyor belt.

[0011] The conveyor belt surface is grooved. When the vibrating motor is working, the corn seeds placed on the conveyor belt surface vibrate and enter the grooves. The depth and width of the grooves are matched to the corn seeds to be selected. The corn seeds are evenly spread and arranged in the grooves to avoid piling up. The bottom wall of the groove is equipped with a sieve hole that runs through the conveyor belt. The diameter of the sieve hole is smaller than the diameter of the corn seeds to be selected. During the vibration process, the sieve hole filters out unqualified corn seeds and small particles of impurities.

[0012] As a preferred embodiment of the above technical solution, the impurity removal device includes a housing, with a plurality of impurity removal vertical pipes provided at the upper end of the housing, the housing being internally connected to the plurality of impurity removal vertical pipes, and an air guide pipe being internally connected to the upper end of the plurality of impurity removal vertical pipes. An impurity removal machine is provided at the end of the air guide pipe away from the impurity removal vertical pipes, and the impurity removal vertical pipes are internally connected to the impurity removal machine. A blowing device is provided below the opening of the housing.

[0013] As a preferred embodiment of the above technical solution, the blowing device is located inside the conveyor belt and fixed between the inner walls of the support frame, and the air outlet of the blowing device is arranged upward.

[0014] By installing a cleaning device above the conveyor belt, the cleaning machine generates suction after starting. When the vibrating motor is working, the dust and light impurities generated by screening corn seeds on the conveyor belt can be sucked up and removed by the cleaning machine through the connected air duct, cleaning riser and box. The blowing device is set inside the conveyor belt. After the blowing device is started, the blowing device blows air upward through the screen holes. In conjunction with the cleaning device, the air force is delivered into the box to blow the hollow corn seeds upward and screen them out.

[0015] As a preferred embodiment of the above technical solution, a motor platform is fixedly connected below the vibration motor, and the two sides of the motor platform are fixedly connected to the support frame.

[0016] As a preferred embodiment of the above technical solution, the impurity discharge port is located inside the conveyor belt and between the blowing device and the discharge device, and is fixed on the bottom wall of the lower end of the support frame.

[0017] When the impurity discharge port moves on the conveyor belt, the vibrating motor first vibrates and screens the smaller corn seeds and dust particles. At the same time, during the operation of this section of the conveyor belt, the corn seeds are evenly spread in the groove through vibration before entering the next screening operation.

[0018] As a preferred embodiment of the above technical solution, the feeding device includes a housing, and the housing has two opposing slots on the side facing the screening device. One of the slots has a plurality of rollers arranged at equal intervals inside, and a baffle is provided inside the slot. A rack is fixedly connected to the side of the baffle away from the rollers. A gear meshes with the side of the rack, and a servo motor is fixedly connected to one end face of the gear. The servo motor is fixed to the top of the support frame.

[0019] The shell contains the corn seeds to be screened. When the servo motor fixed at the top of the support frame starts and stops, it drives the rack fixed on the baffle through gears, causing the baffle to rise and fall. Rollers are installed in the slot on the side away from the rack to cooperate with the baffle to roll up and down, reducing the resistance of the baffle's rise and fall. The operator can control the height of the baffle according to the conveyor belt's transport speed, thereby controlling the amount of corn seeds fed.

[0020] As a preferred embodiment of the above technical solution, a spring is fixedly connected to the lower end of the support frame, and a foot is fixedly connected to the lower end of the spring.

[0021] The spring is positioned between the support frame and the machine feet, enabling the vibratory motor to effectively vibrate the equipment connected to the support frame during operation, and also effectively fixing the machine feet to the ground, preventing the entire equipment from shifting during vibration.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. This utility model sets grooves and sieve holes on the conveyor belt so that the corn seeds are spread flat in the grooves during the vibration process, avoiding the sieve holes from being blocked by the stacking and squeezing of the corn seeds and affecting the screening work.

[0024] 2. This utility model uses a blower device to blow air upwards through the through-hole, and works in conjunction with a cleanup device to sun-dry and select hollow and necrotic corn seeds, thereby increasing the qualified rate of the finished corn seed product. Attached Figure Description

[0025] Figure 1 This is a side view schematic diagram of a corn seed screening and impurity removal device;

[0026] Figure 2 A schematic diagram of the cross-sectional structure of a conveyor belt in a corn seed screening and impurity removal device;

[0027] Figure 3 A schematic diagram of the feed inlet structure of a corn seed screening and impurity removal device;

[0028] Figure 4 A schematic diagram of the side structure of the feed inlet of a corn seed screening and impurity removal device;

[0029] Figure 5 This is a schematic diagram of the movable connection structure of the feed inlet of a corn seed screening and impurity removal device.

[0030] Figure 6 A schematic diagram of a baffle structure for a corn seed screening and impurity removal device;

[0031] Figure 7 A schematic diagram of the enlarged structure of a conveyor belt in a corn seed screening and impurity removal device;

[0032] Figure 8 This is a schematic diagram of the impurity removal structure of a corn seed screening and impurity removal device.

[0033] Legend:

[0034] 1. Support frame; 101. Motor platform; 2. Drive shaft; 3. First motor; 4. Screening device; 401. Conveyor belt; 402. Groove; 403. Screen hole; 5. Blowing device; 6. Impurity removal device; 601. Box body; 602. Impurity removal riser; 603. Air guide pipe; 604. Impurity removal machine; 7. Feeding device; 701. Shell; 702. Baffle; 703. Gear; 704. Servo motor; 705. Groove; 706. Roller; 707. Rack; 8. Vibrating motor; 9. Qualified product discharge port; 10. Spring; 11. Machine feet; 12. Impurity discharge port. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0036] Please see Figures 1-3 As shown, this utility model provides a technical solution: a corn seed screening and impurity removal device, including a support frame 1, two drive shafts 2 for transporting corn seeds are rotatably connected inside the support frame 1, a screening device 4 for screening corn seeds is sleeved on the outside of the two drive shafts 2, a feeding device 7 for storing corn seeds before screening is provided above one end of the screening device 4, a blowing device 5 for removing impurities from corn seeds is provided inside the screening device 4, an impurity discharge port 12 is also provided inside the screening device 4, an impurity removal device 6 for removing impurities from corn seeds is provided above the screening device 4, a vibration motor 8 is provided below the screening device 4, and a qualified product discharge port 9 is provided at the end of the screening device 4 away from the feeding device 7.

[0037] As one implementation method in this embodiment, please refer to Figure 1 As shown, two drive shafts 2 are located on both sides of the support frame 1 away from the center. Both drive shafts 2 are movably connected to the inner wall of the support frame 1. A first motor 3 is fixedly installed on the outer wall of the support frame 1. The output shaft of the first motor 3 passes through the side wall of the support frame 1 and is fixedly connected to the center of the end face of the drive shaft 2.

[0038] As one implementation method in this embodiment, please refer to Figure 4 and Figure 7 As shown, the screening device 4 includes a conveyor belt 401, and a plurality of grooves 402 are formed on the surface of the conveyor belt 401. The bottom wall of the plurality of grooves 402 passes through the conveyor belt 401 and is provided with sieve holes 403.

[0039] As one implementation method in this embodiment, please refer to Figures 1-2 and Figure 8 As shown, the impurity removal device 6 includes a housing 601. The upper end of the housing 601 is provided with several impurity removal risers 602. The housing 601 and the several impurity removal risers 602 are internally connected. The upper ends of the several impurity removal risers 602 are connected with air guide pipes 603. The end of the air guide pipe 603 away from the impurity removal risers 602 is provided with an impurity removal machine 604. The impurity removal risers 602 and the impurity removal machine 604 are internally connected. A blower 5 is provided below the opening of the housing 601.

[0040] As one implementation method in this embodiment, please refer to Figures 1-3 and Figure 7 As shown, the blower 5 is located inside the conveyor belt 401 and fixed between the inner walls of the support frame 1, and the air outlet of the blower 5 is set upward.

[0041] As one implementation method in this embodiment, please refer to Figure 1 and Figure 3 As shown, a motor platform 101 is fixedly connected below the vibration motor 8, and the two sides of the motor platform 101 are fixedly connected to the support frame 1.

[0042] As one implementation method in this embodiment, please refer to Figures 1-6 As shown, the impurity discharge port 12 is located inside the conveyor belt 401 and between the blowing device 5 and the discharge device 7, and is fixed to the bottom wall of the lower end of the support frame 1. The discharge device 7 includes a housing 701. The housing 701 has two opposing slots 705 on the side facing the screening device 4. One of the slots 705 has several rollers 706 arranged at equal intervals inside. The slot 705 has a baffle 702 inside. A rack 707 is fixedly connected to the side of the baffle 702 away from the rollers 706. A gear 703 meshes with the side of the rack 707. A servo motor 704 is fixedly connected to one end face of the gear 703. The servo motor 704 is fixed to the top of the support frame 1.

[0043] As one implementation method in this embodiment, please refer to Figures 1-4 and Figure 8 As shown, a spring 10 is fixedly connected to the lower end of the support frame 1, and a foot 11 is fixedly connected to the lower end of the spring 10.

[0044] Working principle: The corn seeds to be screened are poured into the feeding device 7. The servo motor 704, located at the top of the support frame 1, controls the gear 703 to mesh with the rack 707 to rotate, causing the baffle 702 to rise and fall. This controls the amount of corn seeds fed, preventing excessive feeding and accumulation. Next, the first motor 3 is started to control the rotation of the drive shaft 2, which in turn drives the conveyor belt 401, which is sleeved on the outside of the drive shaft 2. The surface of the conveyor belt 401 has grooves 402 and sieve holes 403. After the corn seeds are fed onto the conveyor belt 401, they fall... The seeds fall into the groove 402, and then the vibration motor 8 is started to vibrate the conveyor belt 401. During the vibration, the corn seeds are spread evenly in the groove 402 of the conveyor belt 401. Unqualified corn seeds fall through the screen holes 403 into the impurity discharge port 12 inside the conveyor belt 401 and flow out. The blowing device 5 and the impurity removal device 6 are started. The blowing device 5 blows air upward through the screen holes 403 and the impurity removal device 6 sucks air to screen out the hollow and rotten corn seeds inside. Qualified corn seeds are sent along the conveyor belt 401 into the qualified product discharge port 9.

[0045] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A corn seed screening and impurity removal device, comprising a support frame (1), characterized in that: The support frame (1) is internally connected to two drive shafts (2) for transporting corn seeds. A screening device (4) for screening corn seeds is sleeved on the outside of the two drive shafts (2). A feeding device (7) for storing corn seeds before screening is provided above one end of the screening device (4). A blowing device (5) for removing impurities from corn seeds is provided inside the screening device (4). An impurity discharge port (12) is also provided inside the screening device (4). A cleaning device (6) for removing impurities from corn seeds is provided above the screening device (4). A vibration motor (8) is provided below the screening device (4). A qualified product discharge port (9) is provided at the end of the screening device (4) away from the feeding device (7).

2. The corn seed screening and impurity removal device according to claim 1, characterized in that: The two drive shafts (2) are located on both sides of the support frame (1) away from the center. Both drive shafts (2) are movably connected to the inner wall of the support frame (1). A first motor (3) is fixedly installed on the outer wall of the support frame (1). The output shaft of the first motor (3) passes through the side wall of the support frame (1) and is fixedly connected to the center of the end face of the drive shaft (2).

3. The corn seed screening and impurity removal device according to claim 1, characterized in that: The screening device (4) includes a conveyor belt (401), the surface of which is provided with a plurality of grooves (402), and the bottom wall of the plurality of grooves (402) is provided with sieve holes (403) that penetrate the conveyor belt (401).

4. The corn seed screening and impurity removal device according to claim 1, characterized in that: The impurity removal device (6) includes a housing (601), with a plurality of impurity removal risers (602) at the upper end of the housing (601). The housing (601) is internally connected to the plurality of impurity removal risers (602). A guide pipe (603) is internally connected to the upper end of the plurality of impurity removal risers (602). An impurity removal machine (604) is provided at the end of the guide pipe (603) away from the impurity removal risers (602). The impurity removal risers (602) are internally connected to the impurity removal machine (604). A blower (5) is provided below the opening of the housing (601).

5. The corn seed screening and impurity removal device according to claim 4, characterized in that: The blowing device (5) is located inside the conveyor belt (401) and fixed between the inner walls of the support frame (1).

6. The corn seed screening and impurity removal device according to claim 1, characterized in that: A motor platform (101) is fixedly connected below the vibration motor (8), and the two sides of the motor platform (101) are fixedly connected to the support frame (1).

7. The corn seed screening and impurity removal device according to claim 1, characterized in that: The impurity discharge port (12) is located inside the conveyor belt (401) and between the blowing device (5) and the discharge device (7), and is fixed on the bottom wall of the lower end of the support frame (1).

8. The corn seed screening and impurity removal device according to claim 1, characterized in that: The feeding device (7) includes a housing (701). The housing (701) has two opposing slots (705) on the side facing the screening device (4). One of the slots (705) has several rollers (706) arranged at equal intervals inside. The slot (705) has a baffle (702) inside. A rack (707) is fixedly connected to the side of the baffle (702) away from the rollers (706). The rack (707) meshes with a gear (703) on its side. A servo motor (704) is fixedly connected to one end face of the gear (703). The servo motor (704) is fixed to the top of the support frame (1).

9. The corn seed screening and impurity removal device according to claim 1, characterized in that: A spring (10) is fixedly connected to the lower end of the support frame (1), and a foot (11) is fixedly connected to the lower end of the spring (10).

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