Self-adaptive dust collection device for rice dust removal

Abstract

The utility model discloses a rice dust removal is with self -adaptation dust extraction unit relates to rice processing technical field, including air slot, first collecting plate and second collecting plate, the air slot one side is provided with first collecting plate, the first collecting plate is installed on the air slot surface through screw, the air slot other two sides are provided with second collecting plate, and this rice dust removal is with self -adaptation dust extraction unit when running, and the fan produces the continuous negative pressure, makes the air slot inside form directional airflow. Force dusty air all to enter the air slot through the filter cloth of first collecting plate, and the dust is intercepted on the filter cloth surface of first collecting plate. With dust continuously accumulates, the air permeability resistance of first collecting plate gradually increases adaptively, when the resistance reaches the set threshold value, and the airflow thrust overcomes the spring pre -tension, and the second collecting plate channel adaptively opens, and part of airflow changes by the second collecting plate and enters the air slot, and real -time shares the air volume, thereby avoids the fan overload because of the resistance sharp increase, and remarkably prolongs the service life of fan.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, specifically to an adaptive dust collection device for rice dust removal. Background Technology

[0002] When rice is polished using a polishing machine, dust needs to be collected to prevent it from falling onto the rice surface and thus ensuring the rice's cleanliness. A search revealed a Chinese patent publication number, CN222550974U, which discloses an adaptive dust collection device for rice. While this device disperses the rice through a flow guide component, and the suction of the vacuum cleaner creates an adsorption force at the funnel-shaped filter, allowing the rice to slide down the inner surface of the filter and adsorbing the dust adhering to its surface, thus reducing dust diffusion, if too much dust is adsorbed on the filter surface and not cleaned promptly, the airflow resistance of the filter will gradually increase, potentially leading to fan overload and damage, thereby shortening the equipment's lifespan. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an adaptive dust collection device for rice dust removal, which solves the problem mentioned in the background art that the filter screen of existing devices is prone to overload and damage to the fan during use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an adaptive dust collection device for rice dust removal, comprising an air duct, a first collecting plate, and a second collecting plate. The first collecting plate is provided on one side of the air duct and is mounted to the surface of the air duct by screws. The second collecting plates are provided on the other two sides of the air duct and are mounted to the surface of the air duct by screws. The interior of both the first and second collecting plates is made of filter cloth for filtering and collecting dust in the air. A fan is installed at the top of the air duct, and the air inlet of the fan is connected to the interior of the air duct. A baffle is provided on the inner side of the second collecting plate, and a spring is provided on the inner side of the baffle.

[0005] Preferably, the surface of the baffle is in contact with the surface of the second collecting plate, and a limiting rod is welded to the four ends of the baffle. The limiting rod is slidably connected to the inside of the limiting block, and the limiting block is welded to the inner wall of the air duct. This structure constrains the movement of the baffle to a precise displacement in a single direction through the sliding pair of the limiting rod and the limiting block. This ensures the initial sealing and fit between the baffle and the second collecting plate (avoiding air leakage), and can also adaptively slide along a set trajectory when the resistance increases, so as to realize the timely opening of the air intake channel of the second collecting plate.

[0006] Preferably, a pressure sensor is installed at the bottom of the air duct, and the baffle contacts the pressure sensor through a sliding fit. The pressure sensor is connected to a remote control terminal. The pressure sensor wirelessly transmits the instantaneous pressure signal to the remote control terminal to realize online monitoring and over-limit alarm of dust accumulation.

[0007] Preferably, the spring is fitted onto one end of the adjusting rod, and the other end of the adjusting rod is connected to a protruding structure at the bottom of the air duct. One end of the adjusting rod has a threaded connection, and the adjusting rod is connected to a knob via the thread. This structure converts the rotational movement of the knob into a linear adjustment of the spring compression through the adjusting rod-knob threaded pair, achieving stepless and quantitative control of the spring preload. Therefore, the device can adaptively set the baffle opening threshold according to the dust concentration or process requirements of different batches of rice, ensuring that the resistance-displacement response is always within the optimal matching range.

[0008] Preferably, the adjusting rod is horizontally arranged, with a gap between one end of the adjusting rod and the inner surface of the baffle. The horizontally arranged adjusting rod maintains a small gap with the inner side of the baffle, so that when the baffle is pushed by the airflow to slide adaptively, it only elastically couples with the spring and does not directly collide with the adjusting rod. This gap eliminates the risk of mechanical interference and ensures that the baffle displacement is smooth and the response is sensitive.

[0009] This utility model provides an adaptive dust collection device for rice dust removal. It has the following beneficial effects:

[0010] When this adaptive dust collection device for rice is in operation, it is first fully embedded inside the polishing machine. As the polishing machine polishes the rice, the fan generates continuous negative pressure, creating a directional airflow within the air duct. Under the preload of the spring, the baffle and the second collecting plate maintain a tight seal, blocking the air intake channel of the second collecting plate. This forces all dust-laden air to enter the air duct through the filter cloth of the first collecting plate, where dust is trapped on the surface of the filter cloth. As dust accumulates, the air permeability resistance of the first collecting plate gradually increases adaptively. When the resistance reaches a set threshold, the airflow thrust overcomes the spring preload, pushing the baffle inward along the limiting mechanism and compressing the spring. The second collecting plate channel opens adaptively, allowing some airflow to enter the air duct via the second collecting plate, thus distributing the air volume in real time. This prevents the fan from overloading due to a sudden increase in resistance and significantly extends the fan's service life. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the air duct structure of this utility model;

[0014] Figure 4 This is a side view of the structure of this utility model.

[0015] In the diagram, 1 is the air duct; 2 is the first collection plate; 3 is the second collection plate; 4 is the fan; 5 is the baffle; 6 is the limit rod; 7 is the limit block; 8 is the pressure sensor; 9 is the spring; 10 is the adjusting rod; and 11 is the knob. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0017] Example 1:

[0018] Please see Figure 1-4 This utility model provides a technical solution: an adaptive dust collection device for rice dust removal, including an air duct 1, a first collecting plate 2, and a second collecting plate 3. The first collecting plate 2 is located on one side of the air duct 1 and is screwed to the surface of the air duct 1. The second collecting plates 3 are located on the other two sides of the air duct 1 and are screwed to the surface of the air duct 1. Both the first collecting plate 2 and the second collecting plate 3 are filled with filter cloth for filtering and collecting dust from the air. A fan 4 is installed at the top of the air duct 1, and the air inlet of the fan 4 is connected to the interior of the air duct 1. A baffle 5 is located on the inner side of the second collecting plate 3, and a spring 9 is located on the inner side of the baffle 5. When in use, this dust collection device is installed inside a polishing machine, allowing the rice to be polished... During the process, the fan 4 generates suction, which in turn generates suction inside the air duct 1. Under the push of the spring 9, the baffle 5 is pressed against the second collecting plate 3, preventing air from entering the air duct 1 through the second collecting plate 3. Air can only enter the air duct 1 through the first collecting plate 2. Dust-laden air can be collected and filtered through the filter cloth inside the first collecting plate 2, allowing the dust to remain on the surface of the filter cloth. When there is too much dust on the surface of the filter cloth of the first collecting plate 2, the airflow resistance of the first collecting plate 2 is large. Under the thrust of the air, the baffle 5 slides inward and compresses the spring 9, allowing air to enter the air duct 1 through the second collecting plate 3. This prevents the fan 4 from being overloaded and helps extend the service life of the fan 4.

[0019] Example 2:

[0020] Please see Figure 1-4This utility model provides a technical solution: an adaptive dust collection device for rice dust removal, wherein the surface of a baffle 5 is attached to the surface of a second collecting plate 3, and limit rods 6 are welded to the four ends of the baffle 5. The limit rods 6 are slidably connected to the inside of a limit block 7, and the limit block 7 is welded to the inner wall of the air duct 1. A pressure sensor 8 is installed at the bottom of the air duct 1, and the baffle 5 contacts the pressure sensor 8 through a sliding fit. The pressure sensor 8 is connected to a remote control terminal signal. A spring 9 is fitted onto one end of an adjusting rod 10, and the other end of the adjusting rod 10 is connected to a protruding structure at the bottom of the air duct 1. One end of the adjusting rod 10 is externally threaded. The adjusting rod 10 is connected to the knob 11 via a thread. The adjusting rod 10 is horizontally positioned, with a gap between one end of the adjusting rod 10 and the inner surface of the baffle 5. When the baffle 5 moves backward, it can contact the pressure sensor 8, which in turn can send a signal back to the remote terminal, thereby reminding the staff to clean the first collection plate 2 and the second collection plate 3. By rotating the knob 11, the knob 11 can move on the surface of the threaded rod, thereby compressing the spring 9 and adjusting the pressure applied by the spring 9 to the baffle 5, thus increasing the adjustability of the device.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adaptive dust collection device for removing dust from rice, characterized in that: The device includes an air duct (1), a first collecting plate (2), and a second collecting plate (3). The first collecting plate (2) is provided on one side of the air duct (1) and is installed on the surface of the air duct (1) by screws. The second collecting plate (3) is provided on the other two sides of the air duct (1) and is installed on the surface of the air duct (1) by screws. The first collecting plate (2) and the second collecting plate (3) are both made of filter cloth for filtering and collecting dust in the air. A fan (4) is installed on the top of the air duct (1) and the air inlet of the fan (4) is connected to the inside of the air duct (1). A baffle (5) is provided on the inner side of the second collecting plate (3) and a spring (9) is provided on the inner side of the baffle (5).

2. The adaptive dust collection device for rice dust removal according to claim 1, characterized in that: The surface of the baffle (5) is attached to the surface of the second collecting plate (3), and the four ends of the baffle (5) are welded with limiting rods (6). The limiting rods (6) are slidably connected to the limiting block (7) inside, and the limiting block (7) is welded to the inner wall of the air duct (1).

3. The adaptive dust collection device for rice dust removal according to claim 2, characterized in that: A pressure sensor (8) is installed at the bottom of the air duct (1), and the baffle (5) is in contact with the pressure sensor (8) through a sliding fit. The pressure sensor (8) is connected to the remote control terminal.

4. The adaptive dust collection device for rice dust removal according to claim 3, characterized in that: The spring (9) is fitted onto one end of the adjusting rod (10), and the other end of the adjusting rod (10) is connected to the protruding structure at the bottom of the air duct (1). One end of the adjusting rod (10) is provided with a thread, and the adjusting rod (10) is connected to the knob (11) through the thread.

5. The adaptive dust collection device for rice dust removal according to claim 4, characterized in that: The adjusting rod (10) is horizontally positioned, and there is a gap between one end of the adjusting rod (10) and the inner surface of the baffle (5).

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