Food processing material conveying device

Abstract

The invention relates to the technical field of corn steep liquor processing, and particularly discloses a food processing material conveying device which comprises a box body, a feeding hopper, a screening box, a screening net, a first discharging channel and a second discharging channel, the screening net is connected into the screening box, the screening box can move back and forth in a reciprocating mode and generate vibration, the first discharging channel is connected to the screening net, and the second discharging channel is connected to the screening box. The bottom of the first discharging channel penetrates through the bottom of the screening box, and the second discharging channel is connected to the bottom of the screening box. The conveying mechanism is connected into the box body, the conveying mechanism comprises a conveying belt and a blocking part, the conveying belt can convey corn into the screening box, and the blocking part can flatten the conveyed corn; according to the food processing material conveying device, corns flattened by the blocking part are conveyed to the screening net in the screening box through the material conveying belt, and the screened corns are discharged to the conveying mechanism through front-back reciprocating movement and vibration of the screening box.

Description

Technical Field

[0001] The invention relates to the technical field of corn pulp processing, and in particular to a food processing material conveying device. Background Art

[0002] Corn pulp is rich in soluble protein, growth hormone and some precursor substances, and contains about 40% to 50% solid matter. When producing corn pulp, first select high-quality corn as raw material, then peel, remove impurities and wash the corn to remove dirt, impurities and bacteria on the surface to ensure the cleanliness of the raw materials, then put the processed corn into a cleaning machine for thorough cleaning, and transport it to a pulper through a conveyor belt to be ground into fine particles to form a slurry. Finally, put the ground corn pulp into an extractor, separate the liquid by pressing to obtain preliminary corn pulp, and then remove the solid residue by filtering to obtain pure corn pulp.

[0003] A Chinese patent document with announcement number CN117735210B discloses a corn mixing and feeding mechanism for crop processing, including a conveying unit and a mixing unit, wherein the conveying unit is used to lift and convey corn into the mixing unit, and the mixing unit is used to diffuse the corn downward and discharge it into external processing equipment; the mixing unit includes a receiving hopper, a first connecting cylinder, a second connecting cylinder, a feeding cylinder and a bulk hopper which are sequentially distributed from top to bottom; the bulk hopper is able to discharge corn in different directions by continuously adjusting its inclination angle while rotating, so that the corn is evenly scattered into the processing equipment, which can replace the operation time and physical exertion of traditional manual mixing, simplify the corn conveying method, improve the degree of automation, and improve the uniformity of corn mixing, facilitating subsequent processing.

[0004] However, the above patent still has the following shortcomings: when the cleaned corn is transported to the pulping machine through the conveying mechanism, due to the different sizes of corn particles, the grinder is difficult to control the particle size of the corn pulp, which is easy to affect the quality of the finished corn pulp. Summary of the invention

[0005] The present invention provides a food processing material conveying device, aiming to solve the problem in the related art that corn particles of different sizes make it difficult for a grinder to control the particle size of corn slurry, which easily affects the quality of the finished corn slurry.

[0006] The food processing material conveying device of the present invention comprises a conveying mechanism, and also comprises a box body, a feed hopper, a screening box, a screening net, a discharge channel 1 and a discharge channel 2. The box body is connected to the conveying mechanism, the feed hopper is connected to the box body, the screening box is slidably connected in the box body, the screening net is connected in the screening box, the screening box can reciprocate back and forth and generate vibration, the discharge channel 1 is connected to the screening net, and the bottom of the discharge channel 1 passes through the bottom of the screening box, the discharge channel 2 is connected to the bottom of the screening box, corn is put onto the screening net in the screening box, the screening box reciprocates back and forth and generates vibration, so that large-grain corn and small-grain corn are respectively discharged to the conveying mechanism through the discharge channel 1 and the discharge channel 2; the conveying mechanism is connected in the box body, the conveying mechanism comprises a conveying belt and a blocking part, the conveying belt can convey corn into the screening box, and the blocking part can flatten the conveyed corn.

[0007] Beneficial effect: The corn flattened by the blocking part is conveyed to the screening net in the screening box through the conveyor belt, and the screening box moves back and forth and vibrates, so that the screened corn is discharged to the conveying mechanism through the discharge channel 1 and the discharge channel 2 respectively, so as to facilitate the subsequent separate grinding of large-grain corn and small-grain corn.

[0008] Preferably, it also includes a slide rail, a sliding part, a plug-in part, an elastic part, a first protrusion and a second protrusion, wherein the slide rail is connected in the box, the sliding part is limitedly slidably connected in the slide rail, the plug-in part is plugged into the top of the sliding part, and the plug-in part is connected to the screening box, and an elastic part is connected between the plug-in part and the sliding part. The effect is that the forward and backward movement of the screening box can be guided by the cooperation of the slide rail and the sliding part.

[0009] Preferably, the protrusion 1 and the protrusion 2 are both hemispherical, and the protrusion 1 and the protrusion 2 are provided in plurality, the plurality of protrusions 1 are connected to the top of the slide rail, the plurality of protrusions 2 are connected to the bottom of the screening box, and the plurality of protrusions 1 and the plurality of protrusions 2 are arranged alternately. The effect is that the screening box can generate vibration when it moves forward and backward through the arrangement of the plug-in part, the elastic part, the protrusion 1 and the protrusion 2.

[0010] Preferably, a discharge channel 1 and a discharge channel 2 are connected to the inner bottom wall of the box body, and the discharge channel 1 is plugged into the discharge channel 1, and the discharge channel 2 is plugged into the discharge channel 2.

[0011] Preferably, the feeding mechanism also includes a mounting part, roller one, roller two and a material guiding part, the mounting part is connected to the inner left side of the box body, roller one and roller two are rotatably connected to the inner right end and inner left end of the mounting part respectively, and the feeding belt transmission is connected between roller one and roller two.

[0012] Preferably, the guide part is connected to the inner left end of the mounting part, the guide part is located above the conveyor belt, and the left side of the guide part contacts the left side of the inner wall of the box body. The effect is that the guide part can prevent corn from falling between the left end of the conveyor belt and the left side of the inner wall of the box body.

[0013] Preferably, it also includes a plurality of swing parts, which are all rotatably connected in the feed hopper, and the plurality of swing parts can swing back and forth in the feed hopper. The effect is that the thickness of the corn on the conveyor belt is reduced by the swinging of the plurality of swing parts, and the time for the corn to stay on the conveyor mechanism is reduced, thereby improving the screening efficiency of the corn.

[0014] Preferably, the conveying mechanism includes a conveyor belt, which can convey the screened corn. A partition is connected to the middle of the outer peripheral surface of the conveyor belt for separating the screened large-grain corn and small-grain corn.

[0015] The beneficial effects of the present invention are: 1. The screening box moves back and forth and vibrates, so that the screened corn is discharged to the conveying mechanism through the discharge channel 1 and the discharge channel 2, so as to facilitate the subsequent grinding of large-grain corn and small-grain corn separately.

[0016] 2. The corn leveled by the blocking part is conveyed to the screening net in the screening box through the conveyor belt to avoid reducing the subsequent screening efficiency due to excessive accumulation of corn.

[0017] 3. The telescopic part drives the tooth plate to move back and forth, which can drive the swing part to swing, reduce the thickness of corn spread on the conveyor belt, and reduce the time that corn stays on the conveyor mechanism, thereby improving the screening efficiency of corn. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the conveying mechanism of the present invention.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the conveyor belt and the partition of the present invention.

[0021] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the screening mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the main cross-sectional structure of the screening mechanism of the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the screening mechanism of the present invention.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the driving member of the present invention.

[0025] Figure 8 It is another three-dimensional structural schematic diagram of the screening mechanism of the present invention.

[0026] Fig. 9 It is a three-dimensional structural schematic diagram of the feeding mechanism of the present invention.

[0027] Fig.10 It is a schematic diagram of the main structure of the feeding mechanism of the present invention.

[0028] Fig.11 It is a three-dimensional structural schematic diagram of the swing mechanism of the present invention.

[0029] Reference numerals: 1. Conveying mechanism; 11. Frame; 12. Driving roller 1; 13. Driving roller 2; 14. Conveying belt; 15. Partitioning part; 2. Screening mechanism; 21. Box; 22. Feed hopper; 23. Connecting part; 24. Screening box; 25. Driving member; 251. Slide rail; 252. Sliding part; 253. Connecting part; 254. Elastic part; 255. Protrusion 1; 256. Protrusion 2; 257. Connecting rod; 258. Driving source 1; 259. Driving part; 26, screening net; 27, discharging channel 1; 28, discharging channel 2; 29, discharging piece; 291, discharging channel 1; 292, discharging channel 2; 3, feeding mechanism; 31, mounting part; 32, roller 1; 33, roller 2; 34, feeding belt; 35, guiding part; 36, blocking part; 37, driving source 2; 4, swinging mechanism; 41, swinging part; 42, rotating shaft; 43, gear; 44, tooth plate; 45, telescopic part. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figures 1 to 11As shown, the food processing material conveying device of the present invention includes a conveying mechanism 1, a screening mechanism 2, a feeding mechanism 3 and a swinging mechanism 4, wherein the conveying mechanism 1 is used to convey corn to the grinder, the screening mechanism 2 is connected to the conveying mechanism 1, and is used to screen out large-grain corn and small-grain corn and then convey them to the conveying mechanism 1, so as to grind the large-grain corn and the small-grain corn separately, and to control the particle size of the corn slurry, thereby improving the quality of the finished corn slurry (two grinders can be provided, and the grinding parameters of the two grinders are set according to the large-grain corn and the small-grain corn respectively), the feeding mechanism 3 is connected to the screening mechanism 2, and the feeding mechanism 3 can uniformly convey the corn to the screening mechanism 2 to avoid affecting the screening efficiency of the screening mechanism 2 due to corn accumulation, and the swinging mechanism 4 is connected to the conveying mechanism 1, and the swinging mechanism 4 can uniformly convey the corn to the feeding mechanism 3 to speed up the feeding efficiency of the feeding mechanism 3, thereby improving the screening efficiency of the screening mechanism 2.

[0032] like Figures 1 to 3 As shown, the conveying mechanism 1 includes a frame 11, a transmission roller 12, a transmission roller 13, a conveyor belt 14 and a separator 15. The transmission roller 12 and the transmission roller 13 are rotatably connected to the left and right ends of the inner side of the frame 11 respectively. The conveyor belt 14 is transmission-connected between the transmission roller 12 and the transmission roller 13. The frame 11 can guide the conveyor belt 14 so that the conveyor belt 14 is arranged in a Z shape, and the transmission roller 12 is lower than the transmission roller 13. The separator 15 is connected to the middle of the outer circumference of the conveyor belt 14, and can separate large-grain corn from small-grain corn. A motor (not shown in the figure) is connected to the frame 11, and the output end of the motor is connected to the transmission roller 12. Starting the motor can drive the conveyor belt 14, the transmission roller 12 and the transmission roller 13 to transmit, thereby transporting the large-grain corn and the small-grain corn to the grinder.

[0033] like Figure 1 , Figures 4 to 8 As shown, the screening mechanism 2 includes a box body 21, a feed hopper 22, a connecting portion 23, a screening box 24, a driving member 25, a screening net 26, a discharge channel 1 27, a discharge channel 2 28 and a discharge member 29. The box body 21 is arranged above the top left end of the frame body 11, and the connecting portion 23 is connected to the bottom of the box body 21. The box body 21 is connected to the frame body 11 through the connecting portion 23, so that the box body 21 is located above the top left end of the partition 15. The feed hopper 22 is connected to the top left end of the box body 21 for conveying corn into the box body 21. The driving member 25 is connected in the box body 21, the screening box 24 is connected to the driving member 25, and the screening net 26 is connected in the screening box 24. Both the screening box 24 and the screening net 26 are inclined with the left side higher and the right side lower. The driving member 25 can drive the screening box 24 to move forward and backward, and make the screening box 24 vibrate, so that the screening net 26 can screen the corn.

[0034] The discharge channel 1 27 is connected to the screening net 26, and the bottom of the discharge channel 1 27 passes through the bottom of the screening box 24, and is used to discharge large corn particles from the screening box 24. The discharge channel 28 is connected to the bottom of the screening box 24, and is used to discharge small corn particles from the screening box 24. The discharge member 29 includes a discharge channel 1 291 and a discharge channel 2 292. The discharge channel 1 291 and the discharge channel 2 292 are both connected to the inner bottom wall of the box body 21, and the discharge channel 1 291 and the discharge channel 2 292 are The bottom of the box body 21 is penetrated, and the bottom of the discharge channel 27 is plugged into the top of the discharge channel 291, and the length of the top opening of the discharge channel 291 is greater than the length of the discharge channel 27, so that the discharge channel 27 can move back and forth in the discharge channel 291, and the bottom of the discharge channel 2 28 is plugged into the top of the discharge channel 2 292, and the length of the top opening of the discharge channel 2 292 is greater than the length of the discharge channel 2 28, so that the discharge channel 2 28 can move back and forth in the discharge channel 2 292.

[0035] Large corn granules and small corn granules can be discharged onto the conveyor belt 14 through the discharge channel 1 291 and the discharge channel 2 292 , and the large corn granules and small corn granules are separated by the partition 15 , so as to facilitate the subsequent separate grinding of the large corn granules and the small corn granules.

[0036] Continue to refer Figure 1 , Figures 4 to 8 As shown, the driving member 25 includes a slide rail 251, a sliding portion 252, a plug-in portion 253, an elastic portion 254, a protrusion 1 255, a protrusion 256, a connecting rod 257, a driving source 1 258 and a driving portion 259. The slide rail 251 is connected in the box body 21, and the slide rail 251 is located below the screening box 24. The sliding portion 252 is limitedly slidably connected in the slide rail 251. The plug-in portion 253 is plugged into the top of the sliding portion 252, and the top of the plug-in portion 253 is connected to the bottom of the screening box 24. An elastic portion 254 is connected between the plug-in portion 253 and the sliding portion 252. The elastic portion 254 is a spring, which is used to drive the plug-in portion 253 to reset.

[0037] Both the protrusion 1 255 and the protrusion 2 256 are hemispherical, and both the protrusion 1 255 and the protrusion 2 256 are arranged in plurality, and the plurality of protrusions 1 255 are connected to the top of the slide rail 251, and the plurality of protrusions 256 are connected to the bottom of the screening box 24. The plurality of protrusions 1 255 and the plurality of protrusions 256 are arranged alternately. When the screening box 24 moves forward and backward, the protrusion 256 is blocked by the protrusion 1 255, so that the screening box 24 and the plug-in part 253 move up and stretch the elastic part 254. After the protrusion 256 passes over the protrusion 1 255, the plug-in part 253 and the screening box 24 are pulled to reset through the elastic part 254, thereby screening the corn through the screening net 26.

[0038] The connecting rod 257 is connected to the front side of the screening box 24, and the front end of the connecting rod 257 passes through the front side of the screening box 24. An empty slot is vertically arranged at the front end of the connecting rod 257. The driving source 258 is a motor. The driving source 258 is connected to the box body 21. The driving part 259 is connected to the output shaft of the driving source 258. The driving part 259 is inserted into the empty slot at the front end of the connecting rod 257. In other embodiments, the screening box 24 can also be driven by a cylinder to move back and forth.

[0039] Start the driving source 1 258 to drive the driving part 259 to rotate, so that the driving part 259 drives the connecting rod 257 to move forward and backward, thereby driving the screening box 24 to move forward and backward. When the screening box 24 moves forward and backward, it drives the protrusion 256 to move forward and backward. Under the obstruction of the protrusion 1 255, the protrusion 256 makes the screening box 24 and the plug-in part 253 move up and stretch the elastic part 254. After the protrusion 256 passes over the protrusion 1 255, the plug-in part 253 and the screening box 24 are pulled to reset by the elastic part 254, so that the corn is screened by the screening net 26, so that the large-grain corn is discharged onto the conveyor belt 14 through the discharge channel 1 27 and the discharge channel 1 291, and the small-grain corn is discharged onto the conveyor belt 14 through the discharge channel 2 28 and the discharge channel 2 292. The large-grain corn and the small-grain corn are separated by the partition 15 on the conveyor belt 14, so as to facilitate the subsequent distinguishing and grinding of the large-grain corn and the small-grain corn.

[0040] like Figure 1 , Fig. 9 and Fig.10 As shown, the feeding mechanism 3 includes a mounting portion 31, a roller 1 32, a roller 2 33, a feeding belt 34, a material guiding portion 35, a blocking portion 36 and a driving source 2 37. The mounting portion 31 is connected to the inner left side of the box body 21, the roller 1 32 and the roller 2 33 are rotatably connected to the inner right end and the inner left end of the mounting portion 31 respectively, the roller 1 32 is lower than the roller 2 33, the feeding belt 34 is transmission-connected between the roller 1 32 and the roller 2 33, the feeding belt 34 is located below the feed hopper 22, the driving source 2 37 is connected to the front side of the box body 21, the driving source 2 37 is a motor, the front end of the roller 1 32 is connected to the output shaft of the driving source 2 37, and starting the driving source 2 37 can drive the transmission between the feeding belt 34, the roller 1 32 and the roller 2 33, thereby conveying the corn into the screening box 24.

[0041] The material guiding portion 35 is connected to the inner left end of the mounting portion 31, the material guiding portion 35 is located above the conveyor belt 34, and the left side of the material guiding portion 35 is in contact with the left side of the inner wall of the box body 21, and is used to guide the corn dropped from the feed hopper 22 to the conveyor belt 34 to prevent the corn from falling between the left end of the conveyor belt 34 and the left side of the inner wall of the box body 21. The blocking portion 36 is connected to the inner right end of the mounting portion 31, and there is a gap between the bottom of the blocking portion 36 and the conveyor belt 34, so that when the corn is piled up on the conveyor belt 34, the corn on the top can be blocked to avoid reducing the subsequent screening efficiency due to excessive corn accumulation.

[0042] When corn is poured into the box body 21 from the feed hopper 22, the guide part 35 guides the corn to the conveyor belt 34, and the driving source 2 37 is started to drive the conveyor belt 34, the roller 1 32 and the roller 2 33 to transmit, so as to transport the corn to the screening box 24. When the accumulated corn passes through the conveyor belt 34, the blocking part 36 blocks the corn on the top to make the corn spread on the conveyor belt 34 thinner, thereby improving the subsequent screening efficiency.

[0043] like Figure 1 and Fig.11 As shown, the swing mechanism 4 includes a swing part 41, a rotating shaft 42, a gear 43, a tooth plate 44 and a telescopic part 45. The rotating shaft 42 is connected to the swing part 41. The swing part 41 is rotatably connected to the feed hopper 22 through the rotating shaft 42, and the left end of the rotating shaft 42 passes through the left side of the feed hopper 22. The gear 43 is connected to the left end of the rotating shaft 42. The swing part 41, the rotating shaft 42 and the rotating shaft 42 are all arranged in multiple numbers. The telescopic part 45 is connected to the top of the box body 21. The telescopic part 45 is a cylinder. The tooth plate 44 is connected to the telescopic end of the telescopic part 45. Multiple gears 43 are all meshed and connected with the tooth plate 44.

[0044] When the corn is poured into the feed hopper 22, the telescopic part 45 is started to drive the tooth plate 44 to move back and forth, and the tooth plate 44 is meshed with multiple gears 43 at the same time to drive the multiple swinging parts 41 to swing back and forth, and the corn is evenly transported to the feeding mechanism 3 through the multiple swinging parts 41, thereby reducing the thickness of the corn on the feeding belt 34 and the time that the corn stays on the feeding mechanism 3, thereby improving the screening efficiency of the corn.

[0045] Working principle: When corn is poured into the feed hopper 22 , the telescopic part 45 is started to drive the tooth plate 44 to move back and forth, and the tooth plate 44 is meshed with multiple gears 43 at the same time to drive the multiple swinging parts 41 to swing back and forth, and the corn is evenly transported to the conveyor belt 34 of the conveying mechanism 3 through the multiple swinging parts 41.

[0046] The driving source 2 37 is started to drive the conveyor belt 34, the roller 1 32 and the roller 2 33 to transmit the corn to the screening box 24. When the accumulated corn passes through the conveyor belt 34, the blocking part 36 blocks the corn on the top to make the corn laid on the conveyor belt 34 thinner.

[0047] Start the driving source 1 258 to drive the driving part 259 to rotate, so that the driving part 259 drives the connecting rod 257 to move forward and backward, thereby driving the screening box 24 to move forward and backward. When the screening box 24 moves forward and backward, it drives the protrusion 256 to move forward and backward. Under the obstruction of the protrusion 1 255, the protrusion 256 makes the screening box 24 and the plug-in part 253 move up and stretch the elastic part 254. After the protrusion 256 passes over the protrusion 1 255, the plug-in part 253 and the screening box 24 are pulled to reset by the elastic part 254, so that the corn is screened by the screening net 26, so that the large-grain corn is discharged onto the conveyor belt 14 through the discharge channel 1 27 and the discharge channel 1 291, and the small-grain corn is discharged onto the conveyor belt 14 through the discharge channel 2 28 and the discharge channel 2 292, and the large-grain corn and the small-grain corn are separated by the partition 15 on the conveyor belt 14.

[0048] The motor on the frame 11 is started to drive the conveyor belt 14, the transmission roller 12 and the transmission roller 2 13 to transmit the large-grain corn and the small-grain corn to the grinder.

[0049] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A food processing material conveying device, comprising a conveying mechanism, characterized in that: It also includes a box body, a feed hopper, a screening box, a screening net, a discharging channel 1 and a discharging channel 2. The box body is connected to the conveying mechanism, the feed hopper is connected to the box body, the screening box is slidably connected in the box body, the screening net is connected in the screening box, the screening box can reciprocate back and forth and generate vibration, the discharging channel 1 is connected to the screening net, and the bottom of the discharging channel 1 passes through the bottom of the screening box, the discharging channel 2 is connected to the bottom of the screening box, the corn is put on the screening net in the screening box, the screening box reciprocates back and forth and generates vibration, so that large-grain corn and small-grain corn are respectively discharged to the conveying mechanism through the discharging channel 1 and the discharging channel 2; The feeding mechanism is connected in the box body and comprises a feeding belt and a blocking part. The feeding belt can feed corn into the screening box, and the blocking part can flatten the fed corn.

2. The food processing material conveying device according to claim 1, characterized in that: It also includes a slide rail, a sliding part, a plug-in part, an elastic part, a protrusion one and a protrusion two. The slide rail is connected in the box body, the sliding part is limited and slidably connected in the slide rail, the plug-in part is plugged into the top of the sliding part, and the plug-in part is connected to the screening box, and an elastic part is connected between the plug-in part and the sliding part.

3. The food processing material conveying device according to claim 2, characterized in that: The protrusions 1 and 2 are both hemispherical, and are provided in multiple numbers. Multiple protrusions 1 are connected to the top of the slide rail, and multiple protrusions 2 are connected to the bottom of the screening box. Multiple protrusions 1 and multiple protrusions 2 are arranged alternately.

4. The food processing material conveying device according to claim 1, characterized in that: The inner bottom wall of the box body is connected with a discharge channel 1 and a discharge channel 2. The discharge channel 1 is plugged into the discharge channel 1, and the discharge channel 2 is plugged into the discharge channel 2.

5. The food processing material conveying device according to claim 1, characterized in that: The feeding mechanism also includes a mounting part, a first roller, a second roller and a material guiding part. The mounting part is connected to the inner left side of the box body. The first roller and the second roller are rotatably connected to the inner right end and the inner left end of the mounting part respectively. The feeding belt is transmission-connected between the first roller and the second roller.

6. The food processing material conveying device according to claim 5, characterized in that: The material guiding part is connected to the inner left end of the mounting part, the material guiding part is located above the conveyor belt, and the left side of the material guiding part contacts the left side of the inner wall of the box body.

7. The food processing material conveying device according to claim 1, characterized in that: It also includes a plurality of swing parts, which are all rotatably connected in the feed hopper, and the plurality of swing parts can swing back and forth in the feed hopper.

8. The food processing material conveying device according to any one of claims 1 to 7, characterized in that: The conveying mechanism comprises a conveyor belt, which can convey the screened corn. A partition is connected to the middle of the outer peripheral surface of the conveyor belt, which is used to separate the large-grain corn and the small-grain corn after the screen.

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