Corncob screening device

Abstract

The utility model relates to the technical field of corncob screening, in particular to a corncob screening device which comprises a bottom plate, a feeding mechanism arranged on the rear side of the bottom plate and a screening mechanism used for screening impurities in corncobs, the screening mechanism is located on the front side of the bottom plate, and the screening mechanism comprises two symmetrical supporting plates arranged on the front side of the bottom plate. A material shaking frame is rotationally installed between the two supporting plates, and torsional springs are connected between the rotating end of the material shaking frame and the supporting plates. The device has the beneficial effects that corncobs in the material shaking frame are thrown upwards through the screening mechanism, the corncobs and impurities are likely to be separated due to the fact that the weights of the corncobs and the impurities are different, the impurities float in the air, the screening effect of the corncobs and the impurities is completed, and then the floating impurities are adsorbed through the filtering assembly; and the adsorbed impurities are filtered and dedusted, so that the separation effect of the corncobs and the impurities is realized, the impurities are filtered more uniformly, and the filtering and screening quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corncob screening, in particular to a corncob screening device. Background Art

[0002] Corn cobs are made by threshing corn cobs and then strictly screening. They have the advantages of uniform texture, appropriate hardness, good toughness, strong water absorption and good wear resistance. Corn cob powder refers to corn cobs ground into powder. During the production process of corn cob powder, screening equipment is usually used to screen and separate it.

[0003] By comparing the filtering device for corn cob crushing with patent announcement number CN220991240U, in this scheme, under the action of the vibration component, the first screen plate, the second screen plate and the receiving plate are vibrated up and down inside the discharge port and the chute, so that the crushed material can fall quickly. However, although this device can make the corn cob fall quickly to prevent blockage through vibration, the impurities contained in the corn cob cannot be effectively filtered and isolated during filtration, and are always accumulated together with the corn cob. Therefore, the impurities screened out may continue to remain on the screen plate, and may continue to cause blockage to the screen hole. The impurities are mixed with the corn cob for filtration, which may result in uneven filtration of the impurities in the corn cob, thereby reducing the quality of filtration. Utility Model Content

[0004] The purpose of the present utility model is to provide a corncob screening device in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A corncob screening device comprises a bottom plate, a feeding mechanism is provided on the rear side of the bottom plate, and a screening mechanism for screening impurities inside the corncob, the screening mechanism being located on the front side of the bottom plate;

[0007] The screening mechanism includes two symmetrical support plates arranged on the front side of the base plate, a shaking frame is rotatably installed between the two support plates, a torsion spring is connected between the rotating end of the shaking frame and the support plate, two symmetrical slide rails are fixed to the rear end of the shaking frame, a baffle is slidably installed between the two slide rails, two symmetrical telescopic cylinders are provided on the front side of the support plate, a support plate is fixed on the upper end of the telescopic cylinder, a plurality of pull ropes are connected between the support plate and the front end of the shaking frame, and the initial position of the pull rope is in a relaxed state, a feeding assembly for controlling the feeding of corn cobs is provided on the front side of the shaking frame, and a filtering assembly for adsorbing and filtering impurities when screening corn cobs is provided on the rear side of the shaking frame.

[0008] Preferably: the filter assembly includes two symmetrical L-shaped plates arranged on the rear side of the shaking frame, one of the L-shaped plates is fixed with an air outlet bin at the upper end, and a blowing fan is installed in the air outlet bin, and the other L-shaped plate is fixed with an air inlet bin at the upper end, and a filter is slidably installed inside the air inlet bin, a brush plate is provided on the inner wall of the air inlet bin near the upper end of the filter, a lifting cylinder is provided between the brush plate and the air inlet bin, the brush plate is fitted with the filter, a waste box is provided on the inner wall of the air inlet bin near the lower end of the filter, the waste box is slidably connected to the air inlet bin, and an exhaust fan is provided on the side of the filter away from the brush plate.

[0009] Preferably, the blanking assembly includes a blanking bin arranged at the front side of the shaking frame, a blanking plate is slidably installed on one end of the blanking bin close to the shaking frame, and a connecting plate is provided between the blanking plate and the supporting plate.

[0010] Preferably, a partition is provided on one side of the filter screen close to the air outlet bin, a cutting blade is rotatably mounted on one end of the partition close to the air outlet bin, and a rotating motor is mounted on the rotating end of the cutting blade.

[0011] Preferably: an electric push rod is provided between the baffle and the slide rail, a detection plate is provided below the slide rail, a spring is connected between the detection plate and the support plate, and a pressing block is fixed to one end of the slide rail close to the detection plate.

[0012] Preferably, a handle is fixed on the upper end of the filter screen, and a conical wind shield is fixed on one end of the air inlet bin and the air outlet bin close to each other.

[0013] Compared with the prior art, the beneficial effects are as follows:

[0014] The corn cob in the shaking frame is shaken upward by the screening mechanism, and the corn cob is thrown upward. Due to the difference in weight between the corn cob and the impurities, the two may be separated. The two are isolated and the impurities are floated in the air, completing the screening of the corn cob and the impurities. The floating impurities are then adsorbed by the filter component, and the adsorbed impurities are filtered and dust-removed. The corn silk contained in the corn cob is cut to prevent the longer corn silk from being more easily blocked during filtration, thereby achieving the separation effect of the corn cob and the impurities, making the impurities filtered more evenly, and improving the quality of filtration and screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a spatial stereogram of a corncob screening device according to the present invention;

[0017] Figure 2 This is a structural schematic diagram of a screening mechanism of a corncob screening device according to the present invention;

[0018] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0019] Figure 4 This is a cross-sectional view of the structure inside the air inlet bin of a corncob screening device according to the present invention;

[0020] Figure 5 It is a structural cross-sectional view of the interior of an air outlet bin of a corncob screening device described in the present invention.

[0021] The following are the descriptions of the reference numerals:

[0022] 100. Bottom plate; 201. Unloading bin; 202. Support plate; 203. Shaking frame; 204. Baffle; 205. Slide rail; 206. Electric push rod; 207. Detection plate; 208. Press block; 209. Telescopic cylinder; 210. Support plate; 211. Pull rope; 212. Connecting plate; 213. Unloading plate; 214. Air outlet bin; 215. Blowing fan; 216. Air inlet bin; 217. Cutting blade; 218. Rotating motor; 219. Filter; 220. Exhaust fan; 221. Lifting cylinder; 222. Brush plate; 223. Waste bin; 301. Fixed plate; 302. Rotating shaft; 303. Conveyor belt; 304. Conveying motor. DETAILED DESCRIPTION

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figure 1-Figure 5 As shown, a corn cob screening device includes a base plate 100, a feeding mechanism for feeding the screened corn cobs, the feeding mechanism is located on the rear side of the base plate 100, and a screening mechanism for screening impurities inside the corn cobs, the screening mechanism is located on the front side of the base plate 100.

[0026] In this embodiment, the screening mechanism includes two symmetrical support plates 202 arranged on the front side of the bottom plate 100, a material shaking frame 203 is rotatably installed between the two support plates 202, a torsion spring is connected between the rotating end of the material shaking frame 203 and the support plate 202, and two symmetrical slide rails 205 are fixed to the rear end of the material shaking frame 203, a baffle 204 is slidably installed between the two slide rails 205, an electric push rod 206 is provided between the baffle 204 and the slide rail 205, and a detection plate 207 is provided below the slide rail 205. The detection plate 207 is connected to the support plate 202. A spring is connected between them, and a pressing block 208 is fixed to one end of the slide rail 205 close to the detection plate 207. Two symmetrical telescopic cylinders 209 are provided on the front side of the support plate 202, and a support plate 210 is fixed on the upper end of the telescopic cylinder 209. A plurality of pull ropes 211 are connected between the support plate 210 and the front end of the shaking frame 203. The initial position of the pull rope 211 is a relaxed state. A feeding assembly for controlling the feeding of corn cobs is provided on the front side of the shaking frame 203, and a filtering assembly for adsorbing and filtering impurities when screening corn cobs is provided on the rear side of the shaking frame 203.

[0027] The filter assembly includes two symmetrical L-shaped plates arranged on the rear side of the shaking frame 203, wherein an air outlet bin 214 is fixed on the upper end of one of the L-shaped plates, and a blowing fan 215 is installed in the air outlet bin 214, and an air inlet bin 216 is fixed on the upper end of the other L-shaped plate, and a filter screen 219 is slidably installed inside the air inlet bin 216. A brush plate 222 is provided at the upper end of the inner wall of the air inlet bin 216 near the filter screen 219, and a lifting cylinder 221 is provided between the brush plate 222 and the air inlet bin 216, and the brush plate 222 is fitted with the filter screen 219. A waste box 223 is provided at the lower end of the inner wall of the air inlet bin 216 near the filter screen 219, and the waste box 223 is slidably connected to the air inlet bin 216, and an exhaust fan 220 is provided on the side of the filter screen 219 away from the brush plate 222.

[0028] A partition is provided on the side of the filter 219 close to the air outlet bin 214, and a cutting blade 217 is rotatably installed on one end of the partition close to the air outlet bin 214. A rotating motor 218 is installed on the rotating end of the cutting blade 217. A handle is fixed on the upper end of the filter 219, and a conical wind hood is fixed on the end close to each other of the air inlet bin 216 and the air outlet bin 214.

[0029] The unloading component includes a unloading bin 201 arranged on the front side of the shaking frame 203, and a unloading plate 213 is slidably installed on the unloading bin 201 near one end of the shaking frame 203, and a connecting plate 212 is provided between the unloading plate 213 and the support plate 210. The corn cob in the shaking frame 203 is shaken upward by the screening mechanism, and the corn cob is thrown upward. The difference in weight between the corn cob and the impurities may cause the two to separate, and the two are separated so that the impurities float in the air, completing the screening of the corn cob and the impurities, and then using the filtering component to adsorb the floating impurities, and filtering and dust-removing the adsorbed impurities, and cutting the corn silk contained in the corn cob to prevent the longer corn silk from being more easily blocked during filtration, thereby achieving the separation effect of the corn cob and the impurities, making the impurities filtered more evenly, and improving the quality of filtration and screening.

[0030] In this embodiment: the feeding mechanism includes two rotating shafts 302 distributed front and back on the rear side of the base plate 100, and fixed plates 301 are provided at both ends of the rotating shafts 302. The fixed plates 301 are fixedly connected to the base plate 100, and the rotating shafts 302 are rotatably connected to the fixed plates 301. A conveyor belt 303 is provided between the two rotating shafts 302, and a conveying motor 304 is installed at the rotating end of the rotating shaft 302.

[0031] Working principle: First, a large amount of corn cobs to be screened are poured into the lower hopper 201, and then fall into the shaking frame 203. As the weight of the corn cobs inside the shaking frame 203 increases, the shaking frame 203 will be prompted to rotate downward, thereby driving the pressing block 208 at the rear end of the shaking frame 203 to move downward. When the pressing block 208 touches the detection plate 207 below, the detection plate 207 sends a signal to drive the electric push rod 206 to drive the baffle 204 to move downward, so that the baffle 204 is free from the obstruction of the corn cobs inside the shaking frame 203, and at the same time drives the telescopic cylinder 209 to drive the support plate 210 to move downward, and the support plate 210 pulls the pull rope 211 to move downward, and then the pull rope 211 drives the front end of the shaking frame 203 to rotate downward rapidly, thereby driving the rear end of the shaking frame 203 to lift up rapidly, and shaking the corn cobs inside the shaking frame 203 upward.

[0032] When the support plate 210 moves downward, the connecting plate 212 is used to drive the discharge plate 213 to move downward, and then the discharge plate 213 blocks the discharge end of the discharge bin 201 to stop discharge. When the corn cob is shaken upward, due to the difference in weight between the corn cob and the impurities, the two will be separated, and the corn cob and the impurities will be screened at the same time. The corn cob will fall onto the conveyor belt 303 at the rear due to its gravity, and the conveyor belt 303 will feed the screened corn cob, so that the light impurities will temporarily float in the air.

[0033] This then drives the blowing fan 215 and the exhaust fan 220 to rotate in opposite directions, generating a certain negative pressure between the exhaust fan 220 and the blowing fan 215, and forming a circulating airflow between the two, thereby adsorbing impurities on the filter 219 inside the air inlet bin 216, so that the filter 219 filters the impurities, which may contain substances such as corn silk, and then drives the rotating motor 218 to drive the cutting blade 217 to rotate, and then cut the longer corn silk to prevent the longer corn silk from adhering to the filter 219 and clogging the filter holes. After the corn cobs are screened, the exhaust fan 220 and the blowing fan 215 are stopped, and at this time the lifting cylinder 221 is driven to drive the brush plate 222 to move downward to clean the impurities adhering to the surface of the filter 219, so that the impurities fall into the waste box 223 below for collection.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A corncob screening device, comprising a bottom plate (100), wherein a feeding mechanism is provided on the rear side of the bottom plate (100), characterized in that: It also includes a screening mechanism for screening impurities inside the corncob, the screening mechanism being located on the front side of the bottom plate (100); The screening mechanism comprises two symmetrical support plates (202) arranged on the front side of the bottom plate (100), a shaking frame (203) is rotatably installed between the two support plates (202), a torsion spring is connected between the rotating end of the shaking frame (203) and the support plate (202), two symmetrical slide rails (205) are fixed to the rear end of the shaking frame (203), a baffle (204) is slidably installed between the two slide rails (205), and the front side of the support plate (202) is provided with a plurality of symmetrical support plates (202). Two symmetrical telescopic cylinders (209) are provided, a supporting plate (210) is fixed to the upper end of the telescopic cylinder (209), a plurality of pull ropes (211) are connected between the supporting plate (210) and the front end of the shaking frame (203), and the initial position of the pull ropes (211) is in a relaxed state. A feeding assembly for controlling the feeding of corn cobs is provided on the front side of the shaking frame (203), and a filtering assembly for adsorbing and filtering impurities when screening corn cobs is provided on the rear side of the shaking frame (203).

2. A corncob screening device according to claim 1, characterized in that: The filter assembly comprises two symmetrical L-shaped plates arranged at the rear side of the shaking frame (203), wherein an air outlet bin (214) is fixed to the upper end of one of the L-shaped plates, and a blower fan (215) is installed in the air outlet bin (214), and an air inlet bin (216) is fixed to the upper end of the other L-shaped plate, and a filter screen (219) is slidably installed inside the air inlet bin (216), and a brush plate (219) is provided on the inner wall of the air inlet bin (216) near the upper end of the filter screen (219). 22), a lifting cylinder (221) is provided between the brush plate (222) and the air inlet bin (216), the brush plate (222) is in contact with the filter screen (219), a waste box (223) is provided on the inner wall of the air inlet bin (216) near the lower end of the filter screen (219), the waste box (223) is slidably connected to the air inlet bin (216), and an exhaust fan (220) is provided on the side of the filter screen (219) away from the brush plate (222).

3. A corncob screening device according to claim 2, characterized in that: The blanking assembly comprises a blanking bin (201) arranged at the front side of the shaking frame (203); a blanking plate (213) is slidably mounted on one end of the blanking bin (201) close to the shaking frame (203); and a connecting plate (212) is provided between the blanking plate (213) and the supporting plate (210).

4. A corncob screening device according to claim 3, characterized in that: A partition is provided on one side of the filter screen (219) close to the air outlet bin (214); a cutting blade (217) is rotatably mounted on one end of the partition close to the air outlet bin (214); and a rotating motor (218) is mounted on the rotating end of the cutting blade (217).

5. The corncob screening device according to claim 4, characterized in that: An electric push rod (206) is provided between the baffle (204) and the slide rail (205), a detection plate (207) is provided below the slide rail (205), a spring is connected between the detection plate (207) and the support plate (202), and a pressing block (208) is fixed to one end of the slide rail (205) close to the detection plate (207).

6. The corncob screening device according to claim 5, characterized in that: A handle is fixed to the upper end of the filter screen (219), and a conical wind shield is fixed to one end of the air inlet bin (216) and the air outlet bin (214) close to each other.

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