A seed chaff separator

Abstract

The utility model discloses a kind of seed broken awn cleaning machines, it is related to seed screening technical field, including cabinet, the bottom of cabinet is installed with the guide chute of oblique arrangement in one side away from feed inlet, net cylinder is set in cabinet, the little head end of net cylinder is towards feed inlet, the upper position of net cylinder outer surface is installed with baffle, baffle is installed in cabinet upper position, air blower is installed on the upper surface of cabinet, the air outlet end of air blower is installed with wind pipe, the upper surface of cabinet is installed with the pipe joint that communicates with the internal space of baffle in one side away from feed inlet, one end of wind pipe away from air blower is connected with pipe joint, the light awn that is stuck in mesh is blown off, avoid pore blockage, after removing blockage, broken awn can continuously pass through mesh and discharge, ensure that the friction of seed and the inner wall of net cylinder is not hindered, reduce the efficiency of broken awn caused by mesh blockage, reduce the frequency and workload of manual cleaning net cylinder simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of seed screening technology, specifically a seed awn-removing and cleaning machine. Background Technology

[0002] Seed awn removal and cleaning is a crucial step in processing awned crop seeds such as wheat, barley, and oats. Awn removal and cleaning removes or cuts the awns and separates impurities using mechanical or physical methods, laying the foundation for subsequent processing and sowing. After the awned seeds are placed inside a mesh cylinder, a motor starts, driving a rotating bar to continuously rotate within the cylinder. Under the agitation of the bar, the seeds continuously collide and rub against the inner wall of the cylinder, gradually breaking off the awns on the seed surface. The broken awns are discharged through the mesh of the cylinder, while the awn-removed seeds remain inside and are eventually collected in their respective containers.

[0003] However, because the awns are lightweight and slender, they easily become stuck in the mesh of the netting after breaking and are difficult to remove on their own. These stuck awns gradually clog the pores, not only hindering the smooth discharge of subsequent broken awns, but also potentially affecting the normal friction between the seeds and the inner wall of the netting, thus reducing the efficiency of awn breaking and increasing the workload of cleaning the netting afterwards. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a seed awn-breaking and cleaning machine, which solves the problem that awns stuck in the mesh gradually clog the pores, not only hindering the smooth discharge of subsequently broken awns, but also potentially affecting the normal friction between the seeds and the inner wall of the mesh cylinder, thereby reducing awn-breaking efficiency and increasing the workload of subsequent mesh cylinder cleaning.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a seed awn-breaking and cleaning machine, comprising:

[0008] The chassis has an open bottom, a feed inlet is installed on one side of the chassis, a cover plate is snapped onto the feed inlet, and an inclined guide chute is installed on the bottom of the chassis away from the feed inlet.

[0009] The mesh cylinder has a conical structure and is installed inside the machine housing. The small end of the mesh cylinder faces the feed inlet. A baffle frame is installed on the upper part of the outer surface of the mesh cylinder and is installed in the upper part of the machine housing.

[0010] The drive unit, connected to the chassis, is used to drive the seeds to tumble inside the mesh tube;

[0011] A blower is installed on the upper surface of the casing. An air supply pipe is installed at the air outlet end of the blower. A pipe joint communicating with the internal space of the baffle frame is installed on the side of the upper surface of the casing away from the feed inlet. The end of the air supply pipe away from the blower is connected to the pipe joint.

[0012] Preferably, the driving component includes:

[0013] The motor is located on the side of the machine housing away from the feed inlet, and the motor is connected to the machine housing via a bracket;

[0014] A drive shaft passes through the chassis and is rotatably connected to the chassis. One end of the drive shaft is connected to the output shaft of the motor by multiple sets of bolts.

[0015] An end cap is installed inside the mesh cylinder on the side near the feed inlet, with the lower end of the feed inlet extending into the end cap;

[0016] A large ring frame is fitted onto the end of the drive shaft near the motor and is fixedly connected to the drive shaft. The large ring frame is set inside the mesh cylinder. There are multiple channels between the outer circumference of the large ring frame and the inner wall of the mesh cylinder to allow seeds to pass through and to cooperate with the discharge trough.

[0017] Multiple actuating strips are provided, and the multiple actuating strips are installed in a ring at equal intervals between the large ring frame and the end cover. The actuating strips slide in contact with the inner wall of the mesh cylinder.

[0018] Preferably, the drive shaft is fitted with a plurality of small rings whose size gradually decreases in the direction away from the large ring, and the small rings are connected and fixed to the actuating bar and the drive shaft.

[0019] Preferably, the chassis has a regular hexagonal cross-section, and two observation windows are hinged to the two sides of the chassis facing upwards.

[0020] Preferably, a middle frame is installed in the middle of the chassis, and end frames are installed at both ends of the chassis. A connector for supporting the blower is installed between one of the end frames and the middle frame.

[0021] Preferably, the connector includes a base plate, with the base plate located between one of the end frames and the middle frame. Two support plates are mounted on the outer surface of the blower, and the lower ends of the support plates are connected to the base plate by bolts. Clamping plates are installed at both ends of the base plate. One of the end frames and the middle frame are located between the two clamping plates. Two screw holes are opened on the opposite surfaces of the two clamping plates. Limiting screws are threaded into the screw holes. Two limiting holes that mate with the screw holes are opened on one side of one of the end frames and one side of the middle frame. One end of the limiting screw extends into the limiting hole.

[0022] Preferably, a plurality of elongated openings are evenly provided on the upper surface of the base plate away from the support plate, and the elongated openings are arranged along the width direction of the base plate.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the present invention provides a method with the following beneficial effects:

[0025] 1. The airflow generated by the blower is delivered into the internal space of the baffle frame through the air duct and pipe joint. The baffle frame is connected to the upper part of the outer surface of the screen cylinder, forming a targeted airflow channel. The airflow can directly sweep the inside of the screen cylinder and then exit from the mesh on the surface of the screen cylinder, blowing off the light awns stuck in the mesh, preventing the pores from becoming clogged. After the blockage is cleared, the broken awns can continue to be discharged through the mesh, ensuring that the friction between the seeds and the inner wall of the screen cylinder is not hindered, reducing the decrease in awn breaking efficiency caused by mesh blockage, and at the same time reducing the frequency and workload of manual cleaning of the screen cylinder.

[0026] 2. Installing a middle frame and end frames on the chassis improves the mechanical strength of the chassis. Limit screws are used to restrict the relative positions of the two clamping plates with the middle frame and end frames, completing the assembly of the base plate and the chassis, allowing the blower to be mounted on the base plate. The design of the base plate, clamping plates and other components increases the range of support the chassis can provide for the blower, which helps to reduce the wall thickness of the machinery and lower the production cost of the chassis. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0029] Figure 3 This is an assembly diagram of the mesh cylinder, blower, and casing in this utility model;

[0030] Figure 4 This is an assembly diagram of the middle baffle frame, mesh cylinder, and chassis of this utility model;

[0031] Figure 5 This is an assembly diagram of the large ring frame, end cover, actuating bar, and drive shaft in this utility model.

[0032] In the picture:

[0033] 1. Chassis; 11. Feed chute; 12. Observation window; 13. Middle frame; 14. End frame; 15. Feed inlet; 16. Pipe connector;

[0034] 2. Motor; 21. Bracket; 22. Drive shaft; 23. Large ring frame; 24. End cover; 25. Actuating bar; 26. Small ring frame;

[0035] 3. Base plate; 31. Oblong opening; 32. Clamping plate;

[0036] 4. Blower; 41. Support plate; 42. Air duct;

[0037] 5. Netting cylinder; 51. Baffle frame. Detailed Implementation

[0038] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0039] This utility model provides a technical solution:

[0040] Please see Figure 1-5 A seed awn removal and cleaning machine includes a casing 1 with an open bottom. A feed inlet 15 is installed on one side of the casing 1, and a cover plate is snapped onto the feed inlet 15. After the cover plate is opened, it is convenient to add awned seeds into the screen cylinder 5 through the feed inlet 15. After the feed inlet 15 is blocked by the cover plate, most of the airflow generated by the blower 4 can flow out through the mesh of the screen cylinder 5.

[0041] See Figures 1-5An inclined guide chute 11 is installed on the bottom of the casing 1, away from the feed inlet 15. The mesh cylinder 5 has a conical structure and is installed inside the casing 1, with its small end facing the feed inlet 15. The motor 2 is located on the side of the casing 1 away from the feed inlet 15 and is connected to the casing 1 via a bracket 21. The drive shaft 22 passes through the casing 1 and is rotatably connected to it. One end of the drive shaft 22 is connected to the output shaft of the motor 2 via multiple sets of bolts. The end cover 24 is installed inside the mesh cylinder 5, near the feed inlet 15, with the lower end of the feed inlet 15 extending into the end cover 24. A large ring frame 23 is fitted onto the end of the drive shaft 22 near the motor 2 and is connected and fixed to the drive shaft 22. A large ring frame 23 is installed inside the net cylinder 5. Multiple channels, which allow seeds to pass through and cooperate with the discharge chute, exist between the outer circumference of the large ring frame 23 and the inner wall of the net cylinder 5. Multiple actuating strips 25 are installed in a ring at equal intervals between the large ring frame 23 and the end cover 24. The actuating strips 25 slide in contact with the inner wall of the net cylinder 5. Multiple small ring frames 26, whose size gradually decreases away from the large ring frame 23, are fitted onto the drive shaft 22. These small ring frames 26 are connected and fixed to the actuating strips 25 and the drive shaft 22, improving structural stability. The net cylinder 5 is designed as a cone with its smaller end facing the feed inlet 15. Together with the large ring frame 23, small ring frames 26, and the ring-shaped actuating strips 25, a gradient turning space is formed. The sliding contact between the multiple actuating strips 25 and the inner wall of the net cylinder 5 ensures that the seeds turn over without dead angles within the net cylinder 5, preventing some seeds from failing to break their awns due to static placement and improving the overall uniformity of awn breaking. The inclined guide chute 11 at the bottom of the chassis 1 can quickly export the seeds after the awns have been broken to the collection container.

[0042] See Figures 1-5 The chassis 1 has a regular hexagonal cross-section. Two observation windows 12 are hinged on the two sides of the chassis 1 facing upwards. A middle frame 13 is installed in the middle of the chassis 1, and end frames 14 are installed at both ends of the chassis 1. The middle frame 13 and the end frames 14 enhance the overall rigidity of the chassis 1. The observation windows 12 are hinged on the two sides facing upwards, allowing the operator to observe the awn breakage situation inside the net cylinder 5 in real time and promptly detect abnormalities such as mesh blockage and seed accumulation.

[0043] See Figures 1-5A base plate 3 is provided between an end frame 14 and a middle frame 13. Two support plates 41 are installed on the outer surface of the blower 4. The lower ends of the support plates 41 are connected to the base plate 3 by bolts. Clamping plates 32 are installed at both ends of the base plate 3. An end frame 14 and a middle frame 13 are set between the two clamping plates 32. Two screw holes are opened on the opposite sides of the two clamping plates 32. Limiting screws are connected to the threads in the screw holes. Two limiting holes that mate with the screw holes are opened on one side of an end frame 14 and one side of a middle frame 13. One end of the limiting screw extends into the limiting hole. Multiple elongated openings 31 are evenly opened on the upper surface of the base plate 3 away from the support plates 41. The elongated openings 31 are arranged along the width direction of the base plate 3. The elongated openings 31 reduce the production cost of the base plate 3. The relative positions of the two clamping plates 32, the middle frame 13, and the end frame 14 can be fixed by the limiting screws, thereby completing the assembly of the base plate 3 and the chassis 1, so that the blower 4 can be stably installed on the base plate 3. The design of components such as the base plate 3 and the clamping plate 32 expands the support range of the chassis 1 for the blower 4, so that the chassis 1 does not need to rely on increasing its own wall thickness to ensure support strength, thereby reducing the wall thickness of the chassis 1 and effectively reducing the production and manufacturing cost of the chassis 1.

[0044] See Figures 1-4 A baffle frame 51 is installed on the upper part of the outer surface of the mesh cylinder 5. The baffle frame 51 is installed in the upper part of the casing 1. An air supply pipe 42 is installed at the air outlet of the blower 4. A pipe connector 16 communicating with the internal space of the baffle frame 51 is installed on the side of the upper surface of the casing 1 away from the feed inlet 15. The end of the air supply pipe 42 away from the blower 4 is connected to the pipe connector 16. The airflow generated by the blower 4 is delivered to the inside of the baffle frame 51 through the air supply pipe 42 and the pipe connector 16. Since the baffle frame 51 is connected to the upper part of the outer surface of the mesh cylinder 5, a dedicated airflow path is formed. The airflow can directly blow the mesh cylinder 5 and then flow out from the mesh holes on the surface of the mesh cylinder 5. In this process, it can blow off the light barbs stuck in the mesh holes and prevent the mesh holes from being blocked.

[0045] Once the mesh is clear, the broken awns can continue to be discharged through the mesh, ensuring that the friction between the seeds and the inner wall of the mesh cylinder 5 is not affected, reducing the problem of reduced awn breaking efficiency caused by mesh blockage, and also reducing the number of times and workload of manual cleaning of the mesh cylinder 5.

[0046] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A seed awn-removing and cleaning machine, characterized in that, include: The chassis (1) has an open bottom. A feed inlet (15) is installed on one side of the chassis (1). A cover plate is snapped onto the feed inlet (15). An inclined guide trough (11) is installed on the bottom of the chassis (1) away from the feed inlet (15). The mesh cylinder (5) has a conical structure. The mesh cylinder (5) is set inside the machine box (1). The small end of the mesh cylinder (5) faces the feed inlet (15). A baffle (51) is installed on the upper part of the outer surface of the mesh cylinder (5). The baffle (51) is installed in the upper part of the machine box (1). The driving component is connected to the housing (1) and is used to drive the seeds to tumble inside the net cylinder (5); A blower (4) is installed on the upper surface of the housing (1). An air supply pipe (42) is installed at the air outlet end of the blower (4). A pipe connector (16) communicating with the internal space of the baffle frame (51) is installed on the side of the upper surface of the housing (1) away from the feed inlet (15). The end of the air supply pipe (42) away from the blower (4) is connected to the pipe connector (16).

2. The seed awn-removing and cleaning machine according to claim 1, characterized in that: The driving component includes: The motor (2) is located on the side of the machine housing (1) away from the feed inlet (15), and the motor (2) is connected to the machine housing (1) via a bracket (21); A drive shaft (22) passes through the housing (1) and is rotatably connected to the housing (1). One end of the drive shaft (22) is connected to the output shaft of the motor (2) by multiple sets of bolts. End cap (24) is set inside the mesh cylinder (5) on the side near the feed inlet (15), the lower end of the feed inlet (15) extending into the end cap (24); A large ring frame (23) is sleeved on one end of the drive shaft (22) near the motor (2) and connected and fixed to the drive shaft (22). The large ring frame (23) is set inside the net cylinder (5). There are multiple channels between the outer circumference of the large ring frame (23) and the inner wall of the net cylinder (5) to allow seeds to pass through and to cooperate with the discharge trough. Multiple actuating strips (25) are provided. The multiple actuating strips (25) are installed in a ring at equal intervals between the large ring frame (23) and the end cover (24). The actuating strips (25) slide in contact with the inner wall of the mesh cylinder (5).

3. The seed awn-removing and cleaning machine according to claim 2, characterized in that: Multiple small ring frames (26) with gradually decreasing size in the direction away from the large ring frame (23) are fitted on the drive shaft (22). The small ring frames (26) are connected and fixed to the actuating bar (25) and the drive shaft (22).

4. The seed awn-removing and cleaning machine according to claim 1, characterized in that: The chassis (1) has a regular hexagonal cross-section, and two observation windows (12) are hinged to the two sides of the chassis (1) in the upward direction.

5. A seed awn-removing and cleaning machine according to claim 1, characterized in that: A middle frame (13) is installed in the middle of the chassis (1), and end frames (14) are installed at both ends of the chassis (1). A connector for supporting the blower (4) is installed between one end frame (14) and the middle frame (13).

6. A seed awn-removing and cleaning machine according to claim 5, characterized in that: The connector includes a base plate (3), and a base plate (3) is provided between one end frame (14) and the middle frame (13). Two support plates (41) are installed on the outer surface of the blower (4). The lower end of the support plate (41) is connected to the base plate (3) by bolts. Both ends of the base plate (3) are equipped with clamping plates (32). One end frame (14) and the middle frame (13) are set between the two clamping plates (32). Two screw holes are opened on the opposite sides of the two clamping plates (32). The screw holes are threaded with limit screws. Two limit holes that cooperate with the screw holes are opened on one side of one end frame (14) and one side of the middle frame (13). One end of the limit screw extends into the limit hole.

7. A seed awn-removing and cleaning machine according to claim 6, characterized in that: Multiple elongated openings (31) are evenly provided on the upper surface of the base plate (3) away from the support plate (41), and the elongated openings (31) are arranged along the width direction of the base plate (3).

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