Winnowing machine with multi-stage screening function

Abstract

The winnowing machine with the multi-stage screening function comprises a fixing frame, a feeding plate is fixedly installed at the top of the fixing frame, an adjusting assembly is fixedly installed in the fixing frame and comprises a movable plate, a first movable plate and a second movable plate, and the movable plate, the first movable plate and the second movable plate are movably installed in the fixing frame; the first movable plates are movably installed on the two sides of the movable plate, and the second movable plates are movably installed on the sides, away from the movable plate, of the first movable plates. The size of the feeding channel is adjusted, and synchronous linkage control is performed on the inclination degree of the sieve plate and the size of the sieve plate through hole, so that the overall processing capacity and efficiency of the winnowing machine are remarkably improved, the efficient and stable working state can be kept in diversified application scenes, and various grain processing requirements are met.

Description

Technical Field

[0001] The invention relates to the field of grain air separation, and in particular to an air separator with a multi-stage screening function. Background Art

[0002] Grain refers to plant seeds or fruits eaten by humans and animals, including cereals, beans and some root plants. It is also one of the most important basic foods in the human diet. In order to ensure the processing quality of grain, impurities in the grain are usually cleaned by air separators. Air separators use the difference in aerodynamic properties between materials and impurities to remove impurities through airflow.

[0003] In the process of winnowing, it is often necessary to use a screen to screen the grain. During the screening process, impurities such as stones in the grain are easily stuck on the screen, resulting in a gradual decrease in the screening efficiency of the screen. Therefore, the existing patent provides a mobile grain winnowing machine (publication number: CN115318643B), which is based on a split design. The grain is screened by a screening component to remove impurities such as stones in the grain, and then the winnowing component is used to winnow the grain to remove impurities such as rice husks in the grain, effectively improving the screening and winnowing effects of the grain.

[0004] However, in actual use of the above technical solution, since the aperture of the screen cannot be adjusted, when processing different types of grains, such as corn, wheat and soybeans, due to the different particle sizes, it is necessary to stop the machine multiple times to replace the internal screen, which undoubtedly affects the continuity of work and makes it difficult to meet the complex air separation requirements of various grain particles.

[0005] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0006] The object of the present invention is to provide a wind separator with a multi-stage screening function to solve the technical defects proposed by the background technology.

[0007] The objective of the present invention can be achieved by the following technical scheme: a wind separator with a multi-stage screening function comprises a fixed frame, a feed plate is fixedly installed on the top of the fixed frame, an adjustment component is fixedly installed inside the fixed frame, the adjustment component comprises a moving plate, a movable plate 1 and a movable plate 2, the moving plate, the movable plate 1 and the movable plate 2 are movably installed inside the fixed frame, the movable plate 1 is movably installed on both sides of the moving plate, and the movable plate 2 is movably installed on a side of the movable plate 1 away from the moving plate;

[0008] A sieve plate is movably installed inside the fixed frame, and the sieve plate is located below the movable plate. The adjustment component also includes a shell and a baffle. The shell is fixedly installed on one side of the fixed frame, and the baffle is movably installed on the shell. An adjustment rod is fixedly installed on the baffle, and one end of the adjustment rod extends into the fixed frame, and the adjustment rod is located above the sieve plate.

[0009] An electromagnet is fixedly installed inside the shell, an adjusting plate is movably installed inside the sieve plate, and a magnetic block is fixedly installed on one side of the adjusting plate close to the shell.

[0010] Preferably, a fixed block is fixedly installed inside the fixed frame, a movable groove is opened at the center of the fixed block, the movable plate is movably installed in the movable groove, an electric push rod is fixedly installed inside the fixed frame, and the output end of the electric push rod is fixedly connected to the bottom of the movable plate.

[0011] Preferably, through holes are provided on both the sieve plate and the adjustment plate, a plurality of springs are fixedly mounted on one side of the adjustment plate, and one end of the spring away from the adjustment plate is fixedly connected to the inner wall of the sieve plate.

[0012] Preferably, airbag 1 is fixedly installed at the bottom of the movable plate, and the airbag is connected to the electric push rod. One end of the sieve plate is movably connected to the inner wall of the fixed frame, and airbag 2 is fixedly installed at the bottom of the other end of the sieve plate. Airbag 1 is fixedly connected to airbag 2 through a pipeline.

[0013] Preferably, fan one and fan two are fixedly mounted on the fixed frame, fan one is located at an end of the movable plate away from the feed plate, and fan two is located at an end of the screen plate close to airbag two.

[0014] Preferably, a discharge box 1 and a discharge box 2 are fixedly installed on both sides of the fixed frame, the discharge box 1 is located at an end of the movable plate away from the fan 1, and the discharge box 2 is located at an end of the screen plate away from the fan 2.

[0015] Preferably, a slide groove is opened on the inner wall of one side of the fixing frame, the adjusting rod is movably installed in the slide groove, the width of the slide groove is larger than the diameter of the adjusting rod, a spring is fixedly installed on the top of the adjusting rod, and the other end of the spring is fixedly connected to the top of the slide groove.

[0016] Preferably, the cross section of the electromagnet is rectangular, a through slot is provided on one side of the housing close to the fixing frame, the electromagnet is located at the through slot, and the baffle is movably installed in the through slot.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) The present invention forms a feeding channel by means of a movable plate, a first movable plate and a second movable plate. In actual use, grains are transported to the feeding channel by means of a feed plate. For different types of grain screening, the positions of the first movable plate and the second movable plate are adjusted by adjusting the position of the movable plate, so that the cross-sectional shape of the feeding channel changes, that is, the speed and distribution of the airflow are effectively changed for grain particles of different sizes and shapes, the separation effect of different types of impurities is improved, and the overall air selection efficiency is improved. At the same time, the feed channel can be adjusted to meet different grain flow requirements, and the channel area can be increased or decreased to meet the processing needs of different types of grains.

[0019] (2) The present invention also uses the sieve plate and the adjustment plate in combination. When the movable plate moves, the sieve plate moves synchronously therewith. The adjustment rod drives the adjustment plate to move, thereby adjusting the contact area between the electromagnet and the magnetic block. After the adjustment is completed, the electromagnet is energized to generate a repulsive force on the magnetic block, thereby pushing the adjustment plate to move in the sieve plate, thereby adjusting the size of the sieve plate through-holes. The sieve plate is used to remove small gravel and soil blocks in the grain. The multi-stage sorting and screening effectively improves the grain processing efficiency. At the same time, the adjustable sieve plate can adapt to the screening requirements of different grains.

[0020] (3) The present invention also uses a movable plate and a sieve plate in combination. By moving the movable plate, the size of the feeding channel is adjusted, and the inclination of the sieve plate and the size of the sieve plate holes are synchronously controlled, so that the overall processing capacity and efficiency of the air separator are significantly improved. It can maintain an efficient and stable working state in a variety of application scenarios and meet the needs of various grain processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings;

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure inside the fixing frame of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the adjustment state 1 in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the adjustment state 2 in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the adjustment state three in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the regulating component in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the airbag 1 in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the sieve plate in the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the adjustment plate in the present invention;

[0031] Fig.10 It is a structural schematic diagram of the housing in the present invention;

[0032] Fig.11 It is a structural schematic diagram of the baffle in the present invention.

[0033] Legend: 1. Fixed frame; 101. Feed plate; 2. Adjustment assembly; 201. Moving plate; 202. Movable plate 1; 203. Movable plate 2; 204. Screen plate; 205. Shell; 206. Baffle; 207. Adjustment rod; 208. Electromagnet; 209. Magnetic block; 210. Fixed block; 211. Movable slot; 212. Electric push rod; 213. Adjustment plate; 214. Airbag 1; 215. Airbag 2; 216. Slide slot; 217. Through slot. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1 - Figure 5 As shown, this embodiment is a wind separator with a multi-stage screening function, including a fixed frame 1, a feed plate 101 is fixedly installed on the top of the fixed frame 1, an adjusting component 2 is fixedly installed inside the fixed frame 1, the adjusting component 2 includes a movable plate 201, a movable plate 1 202 and a movable plate 2 203, the movable plate 201, the movable plate 1 202 and the movable plate 2 203 are movably installed inside the fixed frame 1, the movable plate 1 202 is movably installed on both sides of the movable plate 201, and the movable plate 2 203 is movably installed on the side of the movable plate 1 202 away from the movable plate 201.

[0036] Among them, sealing cloth, i.e. flexible cloth with wear-resistant performance, is fixedly installed at the connection between the movable plate 201, the movable plate 1 202 and the movable plate 2 203, and is used to block the gap to prevent food particles from entering the gap.

[0037] A sieve plate 204 is movably installed inside the fixed frame 1, and the sieve plate 204 is located below the movable plate 201. A fixed block 210 is fixedly installed inside the fixed frame 1, and a movable groove 211 is opened at the center of the fixed block 210. The movable plate 201 is movably installed in the movable groove 211. An electric push rod 212 is fixedly installed inside the fixed frame 1, and the output end of the electric push rod 212 is fixedly connected to the bottom of the movable plate 201. In actual use, different control signals are assigned to each type of grain, and the working stroke of the electric push rod 212 is controlled by the control signal, that is, for different types of grains, the electric push rod 212 drives the movable plate 201 to move different distances.

[0038] When the grain to be processed is corn, the corn particles are large and irregular, such as Figure 3As shown, the movable plate 201 is driven upward by the electric push rod 212 until the feeding channel becomes a wide trapezoid. At this time, the maximum channel flow can be provided to avoid clogging of corn particles, ensure the flow of larger particles, and ensure effective cleaning.

[0039] When the food to be processed is rice, since rice grains are relatively light, Figure 4 As shown, the electric push rod 212 drives the movable plate 201 to move downward until the feeding channel becomes a cone with a wide top and a narrow bottom. At this time, the airflow gradually concentrates during the flow process, increasing the wind speed, which can effectively remove light impurities, while protecting the integrity of the rice and reducing the collision between particles;

[0040] When the grain to be processed is wheat, since wheat grains are usually heavier than rice grains, Figure 5 As shown, the electric push rod 212 drives the moving plate 201 to move upward until the feeding channel becomes a trapezoid, which can provide a larger channel flow while maintaining a certain air flow speed, which is more suitable for the physical properties of wheat, can effectively remove impurities, and avoid damage to wheat;

[0041] To summarize, a feeding channel is formed by the movable plate 201, the movable plate 1 202 and the movable plate 2 203. In actual use, the grain is transported to the feeding channel through the feed plate 101. For different types of grain screening, the position of the movable plate 201 is adjusted, and the position of the movable plate 1 202 and the movable plate 2 203 is adjusted to change the cross-sectional shape of the feeding channel, that is, the airflow speed and distribution are effectively changed for grain particles of different sizes and shapes, thereby improving the separation effect of different types of impurities and improving the overall air selection efficiency. At the same time, the adjustable feeding channel can adapt to different grain flow requirements and increase or decrease the channel area to meet the processing needs of different types of grains.

[0042] Example 2: Please refer to Figure 6 - Fig.11 As shown, the present invention further includes a shell 205 and a baffle 206. The shell 205 is fixedly mounted on one side of the fixing frame 1, and the baffle 206 is movably mounted on the shell 205. An adjusting rod 207 is fixedly mounted on the baffle 206. One end of the adjusting rod 207 extends to the inside of the fixing frame 1, and the adjusting rod 207 is located above the sieve plate 204.

[0043] An electromagnet 208 is fixedly installed inside the shell 205, an adjustment plate 213 is movably installed inside the sieve plate 204, a magnetic block 209 is fixedly installed on the side of the adjustment plate 213 close to the shell 205, the cross-section of the electromagnet 208 is rectangular, a through groove 217 is opened on the side of the shell 205 close to the fixed frame 1, the electromagnet 208 is located in the through groove 217, and the baffle 206 is movably installed in the through groove 217.

[0044] A slide groove 216 is provided on the inner wall of one side of the fixed frame 1, and an adjusting rod 207 is movably installed in the slide groove 216. The width of the slide groove 216 is greater than the diameter of the adjusting rod 207. A spring is fixedly installed on the top of the adjusting rod 207, and the other end of the spring is fixedly connected to the top of the slide groove 216. Fan 1 and fan 2 are fixedly installed on the fixed frame 1. Fan 1 is located at the end of the moving plate 201 away from the feed plate 101, and fan 2 is located at the end of the sieve plate 204 close to airbag 2 215. Discharge box 1 and discharge box 2 are fixedly installed on both sides of the fixed frame 1. Discharge box 1 is located at the end of the moving plate 201 away from fan 1, and discharge box 2 is located at the end of the sieve plate 204 away from fan 2.

[0045] In actual use, the grains on the movable plate 201 and the sieve plate 204 are air-selected by fans 1 and 2, and the impurities after air selection are discharged through discharge box 1 and discharge box 2 respectively. After multi-stage sorting by fans 1 and 2, the grain particles are screened by the sieve plate 204, which effectively ensures the grain processing effect and improves the processing efficiency.

[0046] When the sieve plate 204 moves upward, the adjusting rod 207 is squeezed by the surface of the sieve plate 204, thereby driving the adjusting rod 207 to move upward. The adjusting rod 207 is made of rubber material and has a certain elasticity. At the same time, the width of the slide groove 216 is relatively wide. During the upward movement of the adjusting rod 207, it is slightly deformed to compensate for the movement, thereby ensuring the smooth movement of the adjusting rod 207. At the same time, the baffle 206 is made of magnetic isolation material. By adjusting the position of the baffle 206, the relative area of ​​the electromagnet 208 and the magnetic block 209 is adjusted to control the repulsive force generated by them.

[0047] When the electromagnet 208 is energized, a magnetic field is generated, which repels the magnetic block 209, thereby pushing the adjustment plate 213 to move. Through holes are provided on the sieve plate 204 and the adjustment plate 213. By adjusting the position of the adjustment plate 213, the overlap area between the through holes is controlled, and then the aperture is adjusted. For larger grain particles, the overlap area is larger.

[0048] At this time, smaller gravel and soil blocks fall from the screen plate 204 and are discharged from the bottom of the fixed frame 1. Similarly, when the grain particles are smaller, the overlapping area is smaller. Multiple springs are fixedly installed on one side of the adjustment plate 213, and the end of the spring away from the adjustment plate 213 is fixedly connected to the inner wall of the screen plate 204. The spring is used to ensure that the adjustment plate 213 has a certain resistance to avoid the adjustment plate 213 moving back and forth during operation, thereby ensuring that the grain is screened smoothly.

[0049] An airbag 214 is fixedly installed at the bottom of the movable plate 201, and the airbag 214 is sleeved on the electric push rod 212. One end of the sieve plate 204 is movably connected to the inner wall of the fixed frame 1, and an airbag 215 is fixedly installed at the bottom of the other end of the sieve plate 204. The airbag 1 214 is fixedly connected to the airbag 2 215 through a pipeline.

[0050] The working principles of airbag 1 214 and airbag 2 215 are specifically as follows: when the electric push rod 212 pushes the movable plate 201 upward, airbag 1 214 expands, at which time the gas in airbag 215 enters airbag 1 214, and airbag 2 215 contracts. At this time, the inclination angle of the sieve plate 204 becomes larger, ensuring that the heavier grain particles flow smoothly on the sieve plate 204; when the electric push rod 212 drives the movable plate 201 to move downward, airbag 1 214 is squeezed and contracted, the gas in airbag 1 214 enters airbag 2 215, and airbag 2 215 expands. At this time, the inclination angle of the sieve plate 204 becomes smaller, preventing the lighter grain particles from flowing too fast on the sieve plate 204.

[0051] When the movable plate 201 moves, the sieve plate 204 moves synchronously therewith, and then the adjusting rod 207 is used to drive the adjusting plate 213 to move, so as to adjust the contact area between the electromagnet 208 and the magnetic block 209. After the adjustment is completed, the electromagnet 208 is energized to generate a repulsive force on the magnetic block 209, thereby pushing the adjusting plate 213 to move in the sieve plate 204, thereby adjusting the size of the through holes of the sieve plate 204, and removing small gravel and soil blocks in the grain through the sieve plate 204. The multi-stage sorting and screening effectively improves the grain processing efficiency. At the same time, the adjustable sieve plate 204 can adapt to the screening needs of different grains and has a wide range of applications.

[0052] Combining Example 1 and Example 2, it can be seen that the size of the feeding channel is adjusted by moving the movable plate 201, and the inclination of the sieve plate 204 and the size of the through holes of the sieve plate 204 are synchronously controlled, so that the overall processing capacity and efficiency of the air separator are significantly improved, and it can maintain an efficient and stable working state in a variety of application scenarios to meet the needs of various grain processing.

[0053] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A wind separator with a multi-stage screening function, comprising a fixed frame (1), characterized in that: A feed plate (101) is fixedly mounted on the top of the fixed frame (1); an adjustment component (2) is fixedly mounted inside the fixed frame (1); the adjustment component (2) comprises a movable plate (201), a movable plate 1 (202) and a movable plate 2 (203); the movable plate (201), the movable plate 1 (202) and the movable plate 2 (203) are movably mounted inside the fixed frame (1); the movable plate 1 (202) is movably mounted on both sides of the movable plate (201); and the movable plate 2 (203) is movably mounted on a side of the movable plate 1 (202) away from the movable plate (201); A sieve plate (204) is movably mounted inside the fixed frame (1), and the sieve plate (204) is located below the movable plate (201). The adjustment component (2) further comprises a shell (205) and a baffle (206). The shell (205) is fixedly mounted on one side of the fixed frame (1), and the baffle (206) is movably mounted on the shell (205). An adjustment rod (207) is fixedly mounted on the baffle (206), and one end of the adjustment rod (207) extends into the interior of the fixed frame (1). The adjustment rod (207) is located above the sieve plate (204). An electromagnet (208) is fixedly installed inside the housing (205), an adjustment plate (213) is movably installed inside the sieve plate (204), and a magnetic block (209) is fixedly installed on one side of the adjustment plate (213) close to the housing (205).

2. The winnowing machine with multi-stage screening function according to claim 1, characterized in that: A fixed block (210) is fixedly installed inside the fixed frame (1), a movable groove (211) is opened at the center of the fixed block (210), and the movable plate (201) is movably installed in the movable groove (211). An electric push rod (212) is fixedly installed inside the fixed frame (1), and the output end of the electric push rod (212) is fixedly connected to the bottom of the movable plate (201).

3. The winnowing machine with multi-stage screening function according to claim 1, characterized in that: Through holes are provided on both the sieve plate (204) and the adjustment plate (213); a plurality of springs are fixedly mounted on one side of the adjustment plate (213); and one end of the spring away from the adjustment plate (213) is fixedly connected to the inner wall of the sieve plate (204).

4. The winnowing machine with multi-stage screening function according to claim 3, characterized in that: The bottom of the movable plate (201) is fixedly mounted with airbag 1 (214), and the airbag 1 (214) is sleeved on the electric push rod (212). One end of the sieve plate (204) is movably connected to the inner wall of the fixed frame (1), and the bottom of the other end of the sieve plate (204) is fixedly mounted with airbag 2 (215), and the airbag 1 (214) is fixedly connected to the airbag 2 (215) through a pipeline.

5. The winnowing machine with multi-stage screening function according to claim 1, characterized in that: The fixed frame (1) is fixedly mounted with fan 1 and fan 2. Fan 1 is located at an end of the movable plate (201) away from the feed plate (101), and fan 2 is located at an end of the sieve plate (204) close to airbag 2 (215).

6. The winnowing machine with multi-stage screening function according to claim 5, characterized in that: A discharge box 1 and a discharge box 2 are fixedly mounted on both sides of the fixed frame (1); the discharge box 1 is located at an end of the movable plate (201) away from the fan 1, and the discharge box 2 is located at an end of the screen plate (204) away from the fan 2.

7. The winnowing machine with multi-stage screening function according to claim 1, characterized in that: A slide groove (216) is provided on an inner wall of one side of the fixing frame (1), and the adjusting rod (207) is movably installed in the slide groove (216). The width of the slide groove (216) is greater than the diameter of the adjusting rod (207). A spring is fixedly installed on the top of the adjusting rod (207), and the other end of the spring is fixedly connected to the top of the slide groove (216).

8. The winnowing machine with multi-stage screening function according to claim 7, characterized in that: The electromagnet (208) has a rectangular cross section, a through slot (217) is provided on a side of the housing (205) close to the fixing frame (1), the electromagnet (208) is located at the through slot (217), and the baffle (206) is movably mounted in the through slot (217).

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