Particle size screening machine for corn grits
By designing a corn grits particle size screening machine, which uses a worm gear fan to remove impurities, a motor to drive screen vibration, and multi-layer screen grading and screening, the problems of low efficiency and easy clogging of existing equipment have been solved, achieving efficient and convenient screening results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-17
AI Technical Summary
Existing corn grits screening equipment is inefficient, has poor precision, is prone to clogging, cannot meet industrial needs, and has limited adaptability.
A corn grits particle size screening machine was designed. It uses a worm gear fan to remove fine impurities, a motor to drive the screen to vibrate and classify the grits through multiple screens, an infrared sensor to monitor blockages, and features multiple discharge ports and a detachable screen structure.
It improves screening efficiency, reduces the risk of clogging, enhances the adaptability and convenience of the equipment, reduces labor costs, and improves environmental friendliness and safety.
Smart Images
Figure CN224127887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corn grits screening technology, specifically a corn grits particle size screening machine. Background Technology
[0002] Corn grits are small particles formed after corn has been peeled and crushed. They are widely used in food, feed, and industrial raw materials. The particle size of corn grits directly affects product quality and market value.
[0003] Early methods of manual screening or simple mechanical screening were inefficient and inaccurate, making it difficult to meet industrial needs. Existing equipment for screening corn grits cannot accurately identify complex and variable characteristics, has weak adaptability, and cannot meet screening requirements in one go. Furthermore, when the material is stratified by vibrating the screen body driven by a motor and passes through the screen, it is easy to clog the screen, causing material accumulation and reducing processing efficiency. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a corn grits particle size screening machine, which has the advantages of high screening efficiency and strong practicality, and solves the problems mentioned in the background technology.
[0005] This utility model provides the following technical solution: a corn grits particle size screening machine, including a device box, a ventilation duct fixedly installed on the top of the device box, a feed inlet on the top of the ventilation duct, a wind box fixedly installed on one side of the ventilation duct, a waste box installed on the other side of the ventilation duct, a worm gear fan embedded in the inner cavity of the wind box, a door rotatably connected to the outer wall of the waste box, a second feed inlet at the bottom of the ventilation duct, a control panel fixedly installed on the outer wall of the device box, and pulleys fixedly installed at the bottom of the device box.
[0006] As a preferred embodiment of this utility model, the inner wall of the device housing is respectively equipped with a screen one and a screen two, and the connection between the screen one and the screen two and the device housing is inlaid with a clamp. The outer wall of the device housing has a discharge port, and a baffle is fixedly installed on the side of the device housing near the discharge port. The outer wall of the device housing has a groove, and a support plate is provided at the bottom of the inner cavity of the device housing. An infrared sensor is fixedly installed on the inner wall of the device housing near the air box, and a motor is fixedly installed on the outer wall of the device housing away from the control panel.
[0007] As a preferred technical solution of this utility model, the device box and the ventilation duct are connected through the second inlet. The positions of the first inlet and the second inlet are corresponding. The first inlet is funnel-shaped. The outer wall of the air box 4 is provided with a ventilation opening. The worm gear fan and the control panel are electrically connected.
[0008] As a preferred technical solution of this utility model, the first screen and the second screen are slidably connected to the device box through a clamping plate. The surfaces of the first screen and the second screen are both provided with circular mesh holes, and the diameter of the circular mesh hole of the first screen is larger than that of the second screen. There are two grooves, which correspond to the positions of the first screen and the second screen respectively. The first screen, the second screen and the support plate are all placed at an inclination, and the inclination surface faces the discharge port.
[0009] As a preferred embodiment of this utility model, the motor includes a lead screw, which is movably connected to screen one and screen two respectively. The clamps are movably connected by springs. There are three discharge ports, which correspond to the positions of screen one, screen two and the support plate respectively. The control panel is electrically connected to the motor.
[0010] As a preferred embodiment of this utility model, there are three infrared sensing probes, which correspond to the positions of screen one, screen two and tray respectively, and the infrared sensing probes are electrically connected to the control panel.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This corn grits particle size screening machine, through the control panel, starts the motor. When the motor screw rotates, it drives screen one and screen two to vibrate. The coarser corn grits will remain on screen one, while the medium and smaller corn grits will be shaken onto screen two. Screen two then screens out the medium-sized corn grits, and the smaller corn grits will continue to fall onto the tray. Finally, the corn grits will slide out from the corresponding discharge port, avoiding the corn grits clogging the mesh, improving screening efficiency, and reducing labor costs. By setting three discharge ports, the corn grits are prevented from accumulating in one place and affecting the screening effect, making it convenient to collect corn grits of different sizes.
[0013] 2. This corn grits particle size screening machine uses screen one and screen two to slide and connect to the device housing. Corresponding grooves are provided on screen one and screen two, allowing for timely repair and replacement when screen one and screen two are damaged. Screen one and screen two are placed at an angle facing the discharge port, allowing the screened corn grits to slide out of the device, preventing corn grits from accumulating on the screens and affecting screening efficiency. This also facilitates collection by workers and increases the convenience of the device.
[0014] 3. This corn grits particle size screening machine removes fine impurities from the corn grits before they enter the screen by installing a bellows on one side of the ventilation duct, reducing dust inside the device. A waste box is installed on the other side of the ventilation duct, which facilitates the cleaning and recycling of impurities by the staff, further improving the environmental friendliness of the device. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic cross-sectional view of the present invention.
[0017] Figure 3 This is a schematic diagram of the collection box structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the screening machine structure of this utility model;
[0019] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0020] Figure 6 This utility model Figure 2 Enlarged structural diagram at point B.
[0021] In the diagram: 1. Device housing; 2. Ventilation duct; 3. Feed inlet 1; 4. Air box; 5. Worm gear fan; 6. Miscellaneous storage box; 7. Door; 8. Feed inlet 2; 9. Discharge outlet; 10. Baffle; 11. Clamping plate; 12. Screen 1; 13. Screen 2; 14. Support plate; 15. Infrared sensor; 16. Groove; 17. Control panel; 18. Motor; 19. Pulley; 20. Lead screw. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1 - Figure 6 A corn grits particle size screening machine includes a device housing 1. A ventilation duct 2 is fixedly installed on the top of the device housing 1. A feed inlet 3 is opened on the top of the ventilation duct 2. A wind box 4 is fixedly installed on one side of the ventilation duct 2. A waste box 6 is installed on the other side of the ventilation duct 2. A worm gear fan 5 is embedded in the inner cavity of the wind box 4. A door 7 is rotatably connected to the outer wall of the waste box 6. A feed inlet 8 is opened at the bottom of the ventilation duct 2. A control panel 17 is fixedly installed on the outer wall of the device housing 1. A pulley 19 is fixedly installed at the bottom of the device housing 1.
[0024] It should be noted that by installing a blower box 4 on one side of the ventilation duct 2, the fine impurities in the corn grits can be removed before entering the screen 12, reducing the dust in the device housing 1. In addition, a waste box 6 is installed on the other side of the ventilation duct 2, which facilitates the cleaning and recycling of impurities by the staff, further improving the environmental friendliness of the device.
[0025] In a preferred embodiment, the inner wall of the device housing 1 is respectively equipped with a screen 12 and a screen 2 13. The connection between the screen 12 and the screen 2 13 and the device housing 1 is inlaid with a clamp 11. The outer wall of the device housing 1 is provided with a discharge port 9. A baffle 10 is fixedly installed on the side of the device housing 1 near the discharge port 9. A groove 16 is provided on the outer wall of the device housing 1. A support plate 14 is provided at the bottom of the inner cavity of the device housing 1. An infrared sensor 15 is fixedly installed on the inner wall of the device housing 1 near the air box 4. A motor 18 is fixedly installed on the outer wall of the device housing 1 away from the control panel 17.
[0026] It should be noted that by setting screen 12 and screen 23, corn grits can be subdivided into three grades: large, medium and small. The outer wall of the device box 1 is equipped with a motor 18, which drives the lead screw 20 to vibrate screen 12 and screen 23, thereby improving screening efficiency and achieving the best separation effect.
[0027] In a preferred embodiment, the device housing 1 and the ventilation duct 2 are connected through the feed inlet 2 8. The feed inlet 3 corresponds to the position of the feed inlet 2 8. The feed inlet 3 is funnel-shaped. The outer wall of the air box 4 is provided with ventilation openings. The worm gear fan 5 is electrically connected to the control panel 17.
[0028] It should be noted that due to the shape of the feed inlet 3, the corn grits placed inside the feed inlet 3 can slide out quickly, which can effectively prevent the corn grits from accumulating on the inner wall of the feed inlet 3.
[0029] In a preferred embodiment, screen 12 and screen 23 are slidably connected to the device housing 1 via clamp 11. Both screen 12 and screen 23 have circular mesh holes on their surfaces, and the diameter of the circular mesh holes of screen 12 is larger than that of screen 23. There are two grooves 16, which correspond to the positions of screen 12 and screen 23 respectively. Screen 12, screen 23 and support plate 14 are all placed at an angle, with the inclined surface facing the discharge port 9.
[0030] It should be noted that the sliding connection between screen 12 and screen 23 and the device housing 1, and the grooves 16 provided at corresponding positions of screen 12 and screen 23, allows for timely repair and replacement of screen 12 and screen 23 when damaged. Furthermore, screen 12 and screen 23 are placed at an angle facing the discharge port 9, allowing the screened corn grits to slide out of the device, preventing the corn grits from accumulating on the screens and affecting the screening efficiency. This also facilitates the recycling by the staff and increases the convenience of the device.
[0031] In a preferred embodiment, the motor 18 includes a lead screw 20, which is movably connected to screen 12 and screen 2 13 respectively. The clamping plates 11 are movably connected by springs. There are three discharge ports 9, and the three discharge ports 9 correspond to the positions of screen 12, screen 2 13 and support plate 14 respectively. The control panel 17 is electrically connected to the motor 18.
[0032] It should be noted that the movable connection between the lead screw 20 and the screen 12 and screen 23 allows the lead screw 20 to drive the screen 12 and screen 23 to vibrate when rotating, which avoids the corn grits clogging the mesh, improves screening efficiency, and reduces labor costs. Furthermore, by setting three discharge ports 9, the accumulation of corn grits in one place is prevented from affecting the screening effect, and it is convenient to collect corn grits of different sizes.
[0033] In a preferred embodiment, there are three infrared sensor probes 15, which correspond to the positions of screen 12, screen 2 13 and tray 14 respectively, and the infrared sensor probes 15 are electrically connected to the control panel 17.
[0034] It should be noted that by setting up three infrared sensor probes 15, staff can promptly detect clogging of the screen, avoiding property damage caused by corn grits accumulating and blocking a certain area, while also improving the safety of the device.
[0035] Working principle: When using this equipment, corn grits are placed into the inner wall of feed inlet 3. Due to their own gravity, the corn grits fall. By controlling the control panel 17, the worm gear fan 5 is started, which blows the falling corn grits, causing impurities mixed in with the corn grits to be blown towards the waste box 6. The impurities can be cleaned by opening the door 7 on the outer wall of the waste box 6. The corn grits continue to fall from feed inlet 8 and land on screen 12. By controlling the control panel 17, the motor 18 is started. When the lead screw 20 of the motor 18 rotates, screens 12 and 2 vibrate. The coarser corn grits will remain on screen 12, while the medium and smaller corn grits will be shaken onto screen 23. The medium-sized corn grits will then be sieved out by screen 23, and the smaller corn grits will continue to fall onto tray 14. Finally, the corn grits will slide out from the corresponding discharge port 9. When the corn grits block screen 12, screen 23 and tray 14, the infrared sensor on the inner wall of the device box 1 will sound an alarm and display it on the control panel 17. At this time, the staff can pull out screen 12 and screen 23 from the groove 16 on the outer wall of the device box 1 and clean them.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A corn grits particle size screening machine, comprising a device housing (1), characterized in that: A ventilation duct (2) is fixedly installed on the top of the device housing (1). A feed inlet (3) is opened on the top of the ventilation duct (2). A blower box (4) is fixedly installed on one side of the ventilation duct (2). A miscellaneous box (6) is installed on the other side of the ventilation duct (2). A worm gear fan (5) is embedded in the inner cavity of the blower box (4). A door (7) is rotatably connected to the outer wall of the miscellaneous box (6). A feed inlet (8) is opened at the bottom of the ventilation duct (2). A control panel (17) is fixedly installed on the outer wall of the device housing (1). A pulley (19) is fixedly installed at the bottom of the device housing (1).
2. A machine for sizing corn grits as defined in claim 1, characterized in that: The inner wall of the device housing (1) is respectively equipped with a screen one (12) and a screen two (13). The connection between the screen one (12) and the screen two (13) and the device housing (1) is inlaid with a clamp (11). The outer wall of the device housing (1) is provided with a discharge port (9). A baffle (10) is fixedly installed on the side of the device housing (1) near the discharge port (9). A groove (16) is provided on the outer wall of the device housing (1). A support plate (14) is provided at the bottom of the inner cavity of the device housing (1). An infrared sensor (15) is fixedly installed on the inner wall of the device housing (1) near the bellows (4). A motor (18) is fixedly installed on the outer wall of the device housing (1) away from the control panel (17).
3. A machine for sizing corn grits as defined in claim 1, wherein: The device housing (1) and the ventilation duct (2) are connected through the second feed inlet (8). The first feed inlet (3) is located opposite to the second feed inlet (8). The first feed inlet (3) is funnel-shaped. The outer wall of the air box (4) is provided with a ventilation opening. The worm gear fan (5) is electrically connected to the control panel (17).
4. A machine for sizing corn grits as defined in claim 2, wherein: The first screen (12) and the second screen (13) are slidably connected to the device housing (1) through the clamp (11). The surfaces of the first screen (12) and the second screen (13) are provided with circular mesh holes, and the diameter of the circular mesh hole of the first screen (12) is larger than the diameter of the circular mesh hole of the second screen (13). There are two grooves (16), and the two grooves (16) correspond to the positions of the first screen (12) and the second screen (13) respectively. The first screen (12), the second screen (13) and the support plate (14) are all placed at an angle, and the angled surface faces the discharge port (9).
5. A machine according to claim 2, wherein: The motor (18) includes a lead screw (20), which is movably connected to screen one (12) and screen two (13) respectively. The clamps (11) are movably connected by springs. There are three discharge ports (9), and the three discharge ports (9) correspond to the positions of screen one (12), screen two (13) and support plate (14) respectively. The control panel (17) is electrically connected to the motor (18).
6. A machine for sizing corn grits as defined in claim 2, wherein: There are three infrared sensor probes (15), which correspond to the positions of screen one (12), screen two (13) and tray (14) respectively. The infrared sensor probes (15) are electrically connected to the control panel (17).