Seed impurity blowing device
By incorporating a sliding frame and a separating net into the seed blowing device, and adjusting the falling channel using trapezoidal blocks, the problem of existing equipment being unable to separate straw and broken leaves has been solved, achieving efficient separation and transport of seed impurities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-10
AI Technical Summary
Existing seed blowing equipment is difficult to effectively separate larger straw and leaf fragments, and the airflow blown by the blower cannot pass through seeds of different particle sizes, affecting the separation effect of impurities and the falling speed of seeds.
By setting a sliding frame and a separating screen inside the feed hopper, the sliding frame is driven by a motor to vibrate and filter straw and broken leaves. The seed falling channel is adjusted by adjusting the position of the trapezoidal block, and the separation and conveying of seeds and impurities are achieved in conjunction with the blower.
It improves the separation effect of impurities inside the seeds, ensures that the airflow of the fan passes through the seeds, and achieves uniform seed descent and effective separation and collection of impurities.
Smart Images

Figure CN223980800U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of seed processing, especially relates to a seed impurity blowing device. BACKGROUND
[0002] Because seed often contains straw, leaf and other impurities inside after harvesting, so needs to use the fan to blow the seed inside other impurities and separate out when processing.
[0003] At present, the Chinese utility model with the announcement number CN222347467U discloses a dust blowing equipment for corn seed packaging machine. However, the existing seed blowing equipment, because the blowing strength of the fan cannot be too big (too big wind force is easy to directly blow the seed away), therefore when blowing some bigger straw and leaf inside the seed, it is often difficult to blow them away from the seed, thereby affecting the impurity separation effect of the seed. And the existing seed blowing equipment is inconvenient to adjust the caliber of the seed outlet, when replacing the seed with different particle sizes, the seed particle is smaller, and the falling speed is faster, so that the seed falling layer is thicker, so that the airflow blown by the fan is difficult to pass through the seed, and the blowing effect inside the seed is poor. UTILITY MODEL CONTENTS
[0004] The utility model discloses a kind of seed impurity blowing devices, its advantages are that larger straw and leaf can be separated out, and the function of adjusting seed falling speed according to seed particle size is simultaneously provided.
[0005] The above technical purpose of the utility model is realized by the following technical scheme: a kind of seed impurity blowing device, including feed hopper, the inside of the feed hopper is slidably connected with sliding frame, the inside of the sliding frame is hinged with fixed cylinder, the both sides of the surface of the fixed cylinder are fixedly connected with the separation net of sliding frame hinging, the surface of the feed hopper is hinged with motor on one side, the output of the motor is hinged with the rotating rod of the same fixed cylinder rotation connection, the both sides of the surface of the rotating rod are fixedly sleeved with oval plate, the both sides of the inside of the sliding frame close to oval plate are all set with the sliding slot of the same oval plate sliding connection, the both sides of the top and bottom of the sliding frame are hinged with the spring of the same feed hopper fixed connection.
[0006] The above technical scheme is adopted, the sliding frame is vibrated up and down in the inside of feed hopper by starting motor, so that the separation net can filter the seed poured into the inside of feed hopper in the inside of sliding frame. Thus larger straw and leaf are separated out, and the seed impurity blowing separation effect is improved. The seed falling channel between the discharge pipe and the feed hopper is enlarged or reduced by sliding adjustment to the position of trapezoidal block according to the particle size of seed. So that seed falls into the discharge pipe from the bottom of feed hopper at uniform speed, to ensure that the airflow blown by the fan can pass through the seed.
[0007] The utility model further sets up: bottom fixed communication of feeding hopper has the downcomer, the downcomer inside is close to the one end sliding connection of feeding hopper trapezoidal piece, the bottom welding of trapezoidal piece has the limit sliding block of downcomer sliding connection, the feeding hopper and downcomer are penetrated and are connected with the trapezoidal piece rotation connection screw rod.
[0008] The above technical scheme makes the seeds fall into the downcomer at a uniform speed from the bottom of the feeding hopper, ensures that the airflow blown by the fan can pass through the seeds, and improves the blowing separation effect of the impurities inside the seeds.
[0009] The utility model further sets up: the one side of downcomer is close to motor and is provided with the impurity pipe, fixed communication has the connecting pipe between impurity pipe and downcomer.
[0010] The above technical scheme makes the seeds and impurities can be separated and transported outward through the downcomer and the impurity pipe, which is convenient for unified collection.
[0011] The utility model further sets up: the one side of downcomer is away from the connecting pipe and is bolted and is provided with the dust fan, and the one side of downcomer surface is close to dust fan and is bolted and is provided with dust screen.
[0012] The above technical scheme blows the seeds falling into the downcomer through the dust fan, and the blown impurities enter the impurity pipe through the connecting pipe.
[0013] The utility model further sets up: the bottom of downcomer and impurity pipe all are welded with the connecting flange.
[0014] The above technical scheme is convenient for sealing the connecting pipe, and the seeds and impurities are transported to different processing positions.
[0015] The utility model further sets up: the one side of feeding hopper top is away from motor and is hinged with the cover plate.
[0016] The above technical scheme can cover the top of the feeding hopper when not in use, avoiding dust falling into the inside.
[0017] The utility model further sets up: the one end of screw rod is away from trapezoidal piece and is bolted with the torsion block.
[0018] The above technical scheme is convenient for rotating the trapezoidal piece by twisting the screw rod through the torsion block, thereby adjusting the sliding position.
[0019] In summary, the utility model has the following beneficial effects:
[0020] 1、By starting the motor to drive the sliding frame to vibrate up and down inside the feed hopper, the separation net can filter the seeds poured into the inside of the feed hopper inside the sliding frame. Thus, larger straw and leaf fragments are separated out, improving the impurity blowing separation effect inside the seeds;
[0021] 2、By sliding adjustment of the position of the trapezoidal block according to the particle size of the seeds, the seed falling channel between the discharge pipe and the feed hopper is enlarged or reduced. Thus, the seeds are uniformly dropped from the bottom of the feed hopper into the discharge pipe, ensuring that the airflow blown by the fan can pass through the seeds. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 is a structural schematic view of the utility model;
[0023] Figure 2 is a structural sectional view of the utility model;
[0024] Figure 3 is a local structure side schematic view of the utility model;
[0025] Figure 4 is an enlarged view of point A in the utility model Figure 2 .
[0026] Reference signs: 1, feed hopper; 2, motor; 3, sliding frame; 4, separation net; 5, fixed cylinder; 6, spring; 7, rotating rod; 8, oval plate; 9, sliding groove; 10, discharge pipe; 11, torsion block; 12, trapezoidal block; 13, threaded rod; 14, limit slide block; 15, blowing fan; 16, impurity pipe; 17, connecting pipe; 18, connecting flange; 19, dust screen; 20, cover plate. DETAILED DESCRIPTION
[0027] The utility model will be further described in detail below in combination with the drawings.
[0028] Example 1:
[0029] Reference Figure 1 , Figure 2 , Figure 3The utility model provides a seed impurity blowing device, including feed hopper 1, the inside sliding connection of feed hopper 1 has sliding frame 3, the inside of sliding frame 3 is pegged with fixed cylinder 5, both sides of fixed cylinder 5 surface are fixedly connected with the separation net 4 of sliding frame 3 pegging, the side pegging of feed hopper 1 surface has motor 2, the output of motor 2 is pegged with the rotary rod 7 of rotation connection of fixed cylinder 5, both sides of rotary rod 7 surface are fixedly sleeved with oval plate 8, the both sides of oval plate 8 near the inside of sliding frame 3 are all set up with the sliding slot 9 of oval plate 8 sliding connection, the both sides of sliding frame 3 top and bottom are pegged with the spring 6 of fixed connection of feed hopper 1, by opening motor 2 drives sliding frame 3 to vibrate up and down in the inside of feed hopper 1, make the separation net 4 can filter the seed that pours into the inside of feed hopper 1 in the inside of sliding frame 3, thereby the larger straw and broken leaf are separated, improve the impurity blowing separation effect of seed inside.
[0030] Reference Figure 1 、 Figure 2 The top of feed hopper 1 is hinged with a cover plate 20 away from the motor 2. The top of the feed hopper 1 can be covered when not in use to prevent dust from falling into the inside.
[0031] Brief use process: by opening motor 2 drives rotary rod 7 to rotate in the inside of fixed cylinder 5, make oval plate 8 drive under rotary rod 7 in the inside of sliding slot 9 rotate. So as to utilize the sliding force of oval plate 8 and sliding slot 9, make sliding frame 3 slide up and down in the inside of feed hopper 1, and through spring 6 rebound each other, make the separation net 4 can vibrate in the inside of sliding frame 3. Further to the seed that pours into the inside of feed hopper 1 vibration filtering, the larger straw and broken leaf are separated out.
[0032] Example 2:
[0033] Reference Figure 1 、 Figure 2 、 Figure 4 The bottom of the seed impurity blowing device is fixedly connected with a discharge pipe 10, one end of the discharge pipe 10 near the feed hopper 1 is slidingly connected with a trapezoidal block 12, the bottom of the trapezoidal block 12 is welded with a limiting sliding block 14 slidingly connected with the discharge pipe 10, and a threaded rod 13 rotatingly connected with the trapezoidal block 12 is threadedly connected between the feed hopper 1 and the discharge pipe 10. The position of the trapezoidal block 12 is adjusted according to the particle size of the seeds, the seed falling channel between the discharge pipe 10 and the feed hopper 1 is expanded or reduced. So that the seeds fall uniformly from the bottom of the feed hopper 1 into the discharge pipe 10, ensuring that the airflow blown by the fan can pass through the seeds.
[0034] Reference Figure 1 、 Figure 2An impurity pipe 16 is provided on the side of the feed pipe 10 near the motor 2, and a connecting pipe 17 is fixedly connected between the impurity pipe 16 and the feed pipe 10. This allows seeds and impurities to be transported outwards separately through the feed pipe 10 and the impurity pipe 16, facilitating unified collection.
[0035] refer to Figure 1 , Figure 2 A blower 15 is bolted to the side of the feed pipe 10 away from the connecting pipe 17, and a dustproof net 19 is bolted to the side of the feed pipe 10 near the blower 15. By turning on the blower 15, the seeds falling into the feed pipe 10 are blown, and the blown-out impurities enter the impurity pipe 16 through the connecting pipe 17.
[0036] refer to Figure 2 Both the bottom of the feed pipe 10 and the impurity pipe 16 are welded with connecting flanges 18.
[0037] It facilitates the sealing and connection of pipes, enabling them to transport seeds and impurities to different processing locations.
[0038] refer to Figure 2 A torsion block 11 is bolted to the end of the threaded rod 13 away from the trapezoidal block 12. This allows the threaded rod 13 to be rotated by twisting the torsion block 11, thereby adjusting the position of the trapezoidal block 12.
[0039] Brief description of the usage process: By rotating the threaded rod 13, which engages with the feed tube 10, the trapezoidal block 12 is driven to slide inside the feed tube 10, limited by the limiting slider 14. Then, according to the size of the seeds, the position of the trapezoidal block 12 is adjusted to widen or narrow the channel between the top of the feed tube 10 and the feed hopper 1, so that the seeds fall at a uniform speed from the bottom of the feed hopper 1 into the feed tube 10 to blow away impurities.
[0040] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A seed impurity blowing device comprising a feed hopper (1), characterized in that: The inside of the feeding hopper (1) is slidably connected with a sliding frame (3), the inside of the sliding frame (3) is bolted with a fixed cylinder (5), the surface of the fixed cylinder (5) is fixedly connected with a separation net (4) bolted with the sliding frame (3) on both sides, one side of the surface of the feeding hopper (1) is bolted with a motor (2), the output end of the motor (2) is bolted with a rotating rod (7) rotatably connected with the fixed cylinder (5), the surface of the rotating rod (7) is fixedly sleeved with an oval plate (8) on both sides, the inside of the sliding frame (3) is provided with a sliding groove (9) slidably connected with the oval plate (8) on both sides close to the oval plate (8), the top and bottom of the sliding frame (3) are bolted with springs (6) fixedly connected with the feeding hopper (1) on both sides.
2. A seed impurity blowing device according to claim 1, characterized in that: The bottom of the feeding hopper (1) is fixedly communicated with a discharging pipe (10), one end of the inside of the discharging pipe (10) close to the feeding hopper (1) is slidably connected with a trapezoidal block (12), the bottom of the trapezoidal block (12) is welded with a limiting sliding block (14) slidably connected with the discharging pipe (10), the feeding hopper (1) and the discharging pipe (10) are penetrated and threadedly connected with a threaded rod (13) rotatably connected with the trapezoidal block (12).
3. A seed impurity blowing device according to claim 2, characterized in that: One side of the discharging pipe (10) close to the motor (2) is provided with an impurity pipe (16), the impurity pipe (16) and the discharging pipe (10) are fixedly communicated with a connecting pipe (17).
4. A seed impurity blowing device according to claim 3, characterized in that: One side of the inside of the discharging pipe (10) away from the connecting pipe (17) is bolted with a blowing fan (15), one side of the surface of the discharging pipe (10) close to the blowing fan (15) is bolted with a dust screen (19).
5. A seed impurity blowing device according to claim 3, characterized in that: The bottom of the discharging pipe (10) and the impurity pipe (16) are welded with a connecting flange (18).
6. The seed impurity blowing device according to claim 1, characterized in that: The top of the feeding hopper (1) away from the motor (2) is hinged with a cover plate (20).
7. A seed impurity blowing device according to claim 2, characterized in that: One end of the threaded rod (13) away from the trapezoidal block (12) is bolted with a torsion block (11).
Citation Information
Patent Citations
Dust blowing equipment for corn seed packaging machine
CN222347467U