Screening device for agricultural product processing

Abstract

The invention relates to the technical field of screening devices, and discloses a screening device for agricultural product processing, the screening device comprises a supporting base and a mounting box fixedly mounted at the top of the supporting base, a connecting pipe is fixedly mounted at the top of the mounting box, and a feeding port is fixedly mounted at the top of the connecting pipe; a sieve plate is transversely and slidably mounted in the mounting box, a box door is fixedly mounted on one side of the mounting box in a clamped mode, a flattening assembly is arranged on the side, away from the box door, of the top of the mounting box, and an auxiliary assembly is arranged at the bottom of the sieve plate; and the flattening assembly comprises two sets of fixing assemblies which are vertically and symmetrically arranged, and the problems that the screening precision and the screening effect can be affected when more agricultural products are fed at a time and accumulated or the agricultural products are unevenly distributed on the surface of a screen mesh, and the screening efficiency is high due to scraping and cleaning of the screen mesh in the prior art are solved. And the problem that the agricultural product materials are further extruded into the sieve holes possibly occurs.

Description

Technical Field

[0001] The present invention relates to the technical field of screening devices, and particularly to a screening device for agricultural product processing. Background Art

[0002] Agricultural products are items produced in agriculture, such as sorghum, rice, peanuts, corn, wheat, and local specialties in various regions. The processing of agricultural products requires the use of screening devices. Existing screening devices generally perform screening through vibration. When there is a large amount of agricultural products fed at one time and they accumulate on the sieve mesh, or when the agricultural products are unevenly distributed on the surface of the sieve mesh, both will affect the screening accuracy and effect. Moreover, as the screening process extends, it is possible that some agricultural product materials get stuck in the sieve holes.

[0003] For example, an automatic screening device for agricultural product processing with the publication number CN108906606A includes a bottom plate. The upper surface of the bottom plate is fixedly connected with two baffles, and the opposite surfaces of the two baffles are respectively fixedly connected with the left and right ends of a sliding rod. The outer surface of the sliding rod is sleeved with two springs, and the left and right ends of the springs are respectively fixedly connected with the right side surface of the baffle and the left side surface of a sliding sleeve. By setting the sliding sleeve, spring, motor, cam, support plate, sieve box, electric push rod, clamping block, card slot, pulley, and chute, the pulling force of the spring drives the two sliding sleeves to move left and right, causing the two sliding sleeves to drive two connecting rods to rotate, causing the connecting rods to drive the support plate to move downward, causing the cam to rotate and drive the sieve box to shake up and down, making the screening effect better. However, when there is a large amount of agricultural products fed at one time and they accumulate on the sieve mesh, or when the agricultural products are unevenly distributed on the surface of the sieve mesh, both will affect the screening accuracy and effect. Moreover, as the screening process extends, some agricultural product materials will get stuck in the sieve holes. Only by scraping and cleaning, the cleaning effect is limited, and it is possible that the agricultural product materials will be further squeezed into the sieve holes, and the effect of cleaning the sieve mesh is relatively average.

[0004] Therefore, a screening device for agricultural product processing is proposed to facilitate solving the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a screening device for agricultural product processing to solve the problems that when there is a large amount of agricultural products fed at one time and they accumulate, or when the agricultural products are unevenly distributed on the surface of the sieve mesh, both will affect the screening accuracy and effect, and the scraping and cleaning of the sieve mesh in the prior art may further squeeze the agricultural product materials into the sieve holes.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A screening device for agricultural product processing, including a support base and an installation box fixedly installed on the top of the support base. The top of the installation box is fixedly installed with a connecting pipe, and the top of the connecting pipe is fixedly installed with a feed inlet; It further includes: A sieve plate is horizontally and slidably installed inside the installation box. One side of the installation box is snap-fitted and fixedly installed with a box door. On one side of the top of the installation box away from the box door, a leveling component is provided. At the bottom of the sieve plate, an auxiliary component is provided; The leveling component includes two groups of fixed components symmetrically arranged vertically. Each group of fixed components includes two fixing plates symmetrically arranged horizontally. A driving motor is fixedly installed between the two fixing plates horizontally. The output end of the driving motor is fixedly connected with a reciprocating lead screw. The reciprocating lead screw is rotatably installed with the fixing plate. A moving sleeve is threadedly connected to the outside of the reciprocating lead screw. Slide grooves are symmetrically opened vertically at the top of the installation box; The bottom of the moving sleeve is fixedly connected with a connecting plate. The connecting plate is slidably connected with the slide groove. The bottoms of the two connecting plates are fixedly connected with the same left pushing plate. One side of the left pushing plate is fixedly connected with a right pushing plate. An upper guide wheel and a lower guide wheel are fixedly installed on the other side of the installation box. One side of the connecting plate close to the upper guide wheel is fixedly connected with a steel wire rope. The end of the steel wire rope away from the connecting plate bypasses the upper guide wheel and the lower guide wheel and is fixedly connected with one side of the sieve plate; The leveling component further includes symmetrically opened installation grooves. The installation grooves are symmetrically arranged on the front and rear sides of the slide groove. The installation grooves are communicated with the slide groove. A plurality of first springs are fixedly installed at equal intervals inside the installation grooves. One side of each first spring close to the slide groove is fixedly installed with an arc-shaped sleeve; Auxiliary grooves are opened on one side of the front and rear inner walls of the installation box. Fixing blocks are symmetrically fixedly connected to the front and rear sides of the sieve plate. A second spring is fixedly installed inside the auxiliary groove. One end of the second spring close to the box door is fixedly connected with the fixing block; The auxiliary component includes symmetrically arranged bottom plates. The top of the bottom plates is fixedly connected with the bottom of the sieve plate. A trapezoidal plate is slidably installed between the two bottom plates. A cleaning rod is rotatably installed on the top of the trapezoidal plate.

[0007] Preferably, the feed inlet is communicated with the inside of the installation box through a connecting pipe. An electric heating coil is fixedly installed inside the connecting pipe. The box door is fixedly installed with the installation box through bolts. A collection box is arranged below the support base. An observation window is fixedly installed on one side of the front of the installation box. A blanking groove is opened in the middle of the support base. Guide plates are symmetrically fixedly connected below the inside of the installation box.

[0008] By adopting the above technical solution, the left pushing plate and the right pushing plate are convenient for pushing and spreading the agricultural products on the sieve plate, reducing the accumulation of agricultural products. The connecting plate pulls the sieve plate through the steel wire rope, so that the sieve plate slides inside the side groove, realizing the reciprocating shaking and screening of the sieve plate.

[0009] Preferably, the position of the sliding groove corresponds to the reciprocating lead screw, the left push plate is located above the sieve plate, the upper guide wheel is located above the lower guide wheel, and the lower guide wheel is located above the sieve plate.

[0010] By adopting the above technical solution, the movement of the connecting plate drives the movement of the steel rope, and the upper guide wheel and the lower guide wheel guide the steel rope, so that the steel rope pulls the sieve plate to move.

[0011] Preferably, symmetric side grooves are formed in the upper parts on both sides of the installation box, the steel rope is slidably connected to the installation box, the sieve plate is slidably connected to the side grooves, sieve holes are uniformly formed in the interior of the sieve plate, convex blocks are uniformly fixedly connected to the top of the sieve plate, and the convex blocks are trapezoidally arranged.

[0012] By adopting the above technical solution, the convex blocks assist in pushing the agricultural products, which is convenient for screening the agricultural products.

[0013] Preferably, there are at least three first springs, the arc-shaped sleeve is sleeved outside the first springs, the side of the arc-shaped sleeve away from the installation groove is arc-shaped, and the three arc-shaped sleeves are uniformly arranged horizontally.

[0014] By adopting the above technical solution, when the connecting plate moves in the sliding groove, the arc-shaped sleeve will not block the normal sliding of the connecting plate, and the arc-shaped sleeve can block the sliding groove, reducing the splashing of agricultural products from the sliding groove.

[0015] Preferably, the fixing block is located inside the auxiliary groove, the fixing block is slidably connected to the auxiliary groove, and the front and rear sides of the sieve plate are attached to the inner wall of the installation box.

[0016] By adopting the above technical solution, the sieve plate drives the fixing block to slide in the auxiliary groove, the fixing block compresses the second spring, and when the moving sleeve moves leftward, the elastic force of the second spring drives the fixing block and the sieve plate to reset.

[0017] Preferably, sliding grooves are uniformly vertically formed in the interior of the bottom plate, a sliding rod is fixedly connected to the side of the trapezoidal plate close to the bottom plate, the sliding rod is slidably connected to the sliding grooves, there are at least four sliding grooves, and the number of trapezoidal plates is the same as that of the sliding grooves.

[0018] By adopting the above technical solution, when the sieve plate moves, it will drive the two bottom plates at the bottom to move, the bottom plates drive the multiple trapezoidal plates inside to move, and the sliding rod slides inside the guiding groove.

[0019] Preferably, cleaning rods are uniformly rotatably installed at the top of the trapezoidal plates, a cross bar is fixedly connected between the two bottom plates, the number of cross bars is the same as that of the trapezoidal plates, and fixing rings are symmetrically fixedly connected to both sides of the cross bar.

[0020] By adopting the above technical solution, the sliding rod moves to drive the trapezoidal plate and the cleaning rod to move up and down. The vertical positions of the cross bar and the fixed ring remain unchanged. When the cleaning rod rises, it drives the hemispherical block to slide inside the spiral groove, so that the cleaning rod rotates while rising.

[0021] Preferably, the total number of the cleaning rods is the same as the number of the sieve holes of the sieve plate, and the vertical positions correspond one by one. The cleaning rods are slidably connected with the fixed ring. A spiral groove is formed inside the fixed ring. A hemispherical block is fixedly connected to the outer side of the middle of the cleaning rod. The hemispherical block is slidably connected with the spiral groove.

[0022] By adopting the above technical solution, it is convenient for multiple cleaning rods to intermittently rise, insert and rotate to clean the sieve holes of the sieve plate, thereby reducing the blockage of the sieve plate and improving the screening efficiency of the sieve plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. A flattening assembly is provided. When screening agricultural products, the operator inputs the agricultural products from the feeding port and starts the driving motor and the electric heating coil to work. The agricultural products fall onto the sieve plate in the installation box through the connecting pipe. The electric heating coil heats to assist in drying the agricultural products, which is convenient for subsequent screening. The two driving motors drive the reciprocating lead screw to rotate. The connecting plate limits the moving sleeve, so that when the reciprocating lead screw rotates, it drives the moving sleeve to linearly reciprocate. Both moving sleeves drive the left pushing plate to move. When the connecting plate moves in the sliding groove, it will squeeze the arc-shaped sleeve. The arc-shaped sleeve is forced to slide into the installation groove and compress the first spring, so that the arc-shaped sleeve will not block the normal sliding of the connecting plate, and the arc-shaped sleeve can block the sliding groove, reducing the splashing of agricultural products from the sliding groove. The left pushing plate drives the right pushing plate to move, so that the left pushing plate and the right pushing plate will also reciprocate. The left pushing plate and the right pushing plate are convenient for pushing and spreading the agricultural products on the sieve plate, reducing the accumulation of agricultural products. Moreover, the movement of the connecting plate drives the steel rope to move. The upper guide wheel and the lower guide wheel guide the steel rope. When the moving sleeve moves to the right, the sieve plate is pulled through the connecting plate and the steel rope. The sieve plate slides inside the side groove. The sieve plate drives the fixed block to slide in the auxiliary groove. The fixed block compresses the second spring. When the moving sleeve moves to the left, the elastic force of the second spring drives the fixed block and the sieve plate to reset, realizing the reciprocating shaking screening of the sieve plate. The agricultural products with qualified sizes fall through the sieve holes and are guided by the trapezoidal plate and fall into the collection box through the blanking groove for collection. And through the pushing of the left pushing plate and the right pushing plate, combined with the reciprocating screening of the sieve plate, the screening efficiency is improved, and the problems that when there is too much one-time feeding of agricultural products resulting in accumulation, or when the agricultural products are unevenly distributed on the surface of the sieve mesh, both will affect the screening accuracy and screening effect are solved; 2. An auxiliary component is provided. When the sieve plate moves, it drives the two bottom plates at the bottom to move. The bottom plates drive multiple trapezoidal plates inside to move. The sliding rod slides inside the guide groove. The guide groove is a combination of an arc part and a strip part. When the sliding rod slides to the topmost position of the arc part, it is at the highest position. When the sliding rod is located in the strip part, it is at the lowest position. Thus, the intermittent up-and-down movement of the sliding rod is realized. The chute assists the sliding of the sliding rod. The movement of the sliding rod drives the trapezoidal plate and the cleaning rod to move up and down. The vertical positions of the cross bar and the fixing ring remain unchanged. When the cleaning rod rises, it drives the hemispherical block to slide inside the spiral groove, so that the cleaning rod rotates while rising. This facilitates the intermittent rising of multiple cleaning rods to insert and rotate to clean the sieve holes of the sieve plate, thereby reducing the blockage of the sieve plate and improving the screening efficiency of the sieve plate, and solving the problem that scraping and cleaning the sieve mesh may further squeeze the agricultural product materials into the sieve holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall three-dimensional structure of the first embodiment of the present invention; Figure 2 is a schematic diagram of the overall three-dimensional structure of the second embodiment of the present invention; Figure 3 is a schematic diagram of the sectional structure of the feed inlet of the present invention; Figure 4 For the present invention Figure 3 is an enlarged schematic diagram of part A in the present invention; Figure 5 is a schematic diagram of the structure of the discharge chute opened in the present invention; Figure 6 For the present invention Figure 5 is an enlarged schematic diagram of part B in the present invention; Figure 7 is a schematic diagram of the installation structure of the driving motor of the present invention; Figure 8 For the present invention Figure 7 is an enlarged schematic diagram of part C in the present invention; Figure 9 is a schematic diagram of the sieve plate structure of the present invention; Figure 10 For the present invention Figure 9 is an enlarged schematic diagram of part D in the present invention; Figure 11 is a schematic diagram of the sieve plate sliding of the present invention; Figure 12 is a schematic diagram of the guide groove opened in the present invention; Figure 13 is an exploded schematic diagram of the installation structure of the trapezoidal plate of the present invention; Figure 14 is a schematic diagram of the sectional structure of the fixing ring of the present invention.

[0025] In the figure: 1, support base; 2, installation box; 3, feed inlet; 4, sieve plate; 5, box door; 6, leveling assembly; 61, fixed plate; 62, drive motor; 63, reciprocating lead screw; 64, moving sleeve; 65, sliding groove; 66, connecting plate; 67, left push plate; 68, right push plate; 69, upper guide wheel; 610, lower guide wheel; 611, steel wire rope; 612, side groove; 613, bump; 614, installation groove; 615, first spring; 616, arc-shaped sleeve; 617, auxiliary groove; 618, fixed block; 619, second spring; 7, auxiliary assembly; 71, bottom plate; 72, chute; 73, trapezoidal plate; 74, sliding rod; 75, cleaning rod; 76, cross bar; 77, fixed ring; 78, thread groove; 79, hemispherical block; 710, guide groove; 8, collection box; 9, observation window; 10, electric heating coil; 11, blanking chute; 12, material guide plate; 13, connecting pipe. Detailed implementation manner

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-14 , the present invention provides a technical solution: a screening device for agricultural product processing, including a support base 1 and an installation box 2 fixedly installed on the top of the support base 1. A connecting pipe 13 is fixedly installed on the top of the installation box 2, and a feed inlet 3 is fixedly installed on the top of the connecting pipe 13.

[0028] A sieve plate 4 is horizontally slidably installed inside the installation box 2, and a box door 5 is fixedly installed by clamping on one side of the installation box 2.

[0029] The feed inlet 3 is communicated with the inside of the installation box 2 through the connecting pipe 13. An electric heating coil 10 is fixedly installed inside the connecting pipe 13, and the model of the electric heating coil 10 is EHEIM. The box door 5 is fixedly installed on the installation box 2 by bolts. A collection box 8 is arranged below the support base 1. An observation window 9 is fixedly installed on one side of the front of the installation box 2. A blanking chute 11 is opened in the middle of the support base 1. Material guide plates 12 are symmetrically and fixedly connected below the inside of the installation box 2.

[0030] On one side of the top of the installation box 2 away from the box door 5, a flattening component 6 is provided. The flattening component 6 includes two groups of fixed components symmetrically arranged vertically. Each group of the fixed components includes two fixing plates 61 symmetrically arranged horizontally. A driving motor 62 is fixedly installed between the two fixing plates 61 horizontally. The output end of the driving motor 62 is fixedly connected with a reciprocating lead screw 63. The reciprocating lead screw 63 is rotatably installed with the fixing plate 61. A moving sleeve 64 is threadedly connected to the outside of the reciprocating lead screw 63. Slide grooves 65 are symmetrically opened vertically at the top of the installation box 2.

[0031] A connecting plate 66 is fixedly connected to the bottom of the moving sleeve 64. The connecting plate 66 is slidably connected with the slide groove 65. The same left push plate 67 is fixedly connected to the bottoms of the two connecting plates 66. A right push plate 68 is fixedly connected to one side of the left push plate 67. An upper guide wheel 69 and a lower guide wheel 610 are fixedly installed on the other side of the installation box 2. A steel rope 611 is fixedly connected to the side of the connecting plate 66 close to the upper guide wheel 69. The end of the steel rope 611 away from the connecting plate 66 bypasses the upper guide wheel 69 and the lower guide wheel 610 and is fixedly connected to one side of the sieve plate 4.

[0032] The position of the slide groove 65 corresponds to the reciprocating lead screw 63. The left push plate 67 is located above the sieve plate 4. The upper guide wheel 69 is located above the lower guide wheel 610. The lower guide wheel 610 is located above the sieve plate 4.

[0033] The flattening component 6 further includes installation grooves 614 symmetrically opened. The installation grooves 614 are symmetrically arranged on the front and rear sides of the slide groove 65. The installation grooves 614 are communicated with the slide groove 65. A number of first springs 615 are fixedly installed at equal intervals inside the installation grooves 614. An arc-shaped sleeve 616 is fixedly installed on one side of each first spring 615 close to the slide groove 65.

[0034] Side grooves 612 are symmetrically opened at the upper parts of both sides of the installation box 2. The steel rope 611 is slidably connected with the installation box 2. The sieve plate 4 is slidably connected with the side grooves 612. Sieve holes are uniformly opened inside the sieve plate 4. Convex blocks 613 are uniformly fixedly connected to the top of the sieve plate 4. The convex blocks 613 are trapezoidally arranged.

[0035] There are no less than three first springs 615. The arc-shaped sleeve 616 is sleeved on the outside of the first spring 615. The side of the arc-shaped sleeve 616 away from the installation groove 614 is arc-shaped. The three arc-shaped sleeves 616 are horizontally arranged at equal intervals.

[0036] Auxiliary grooves 617 are opened on one side of the front and back inner walls of the installation box 2. Fixed blocks 618 are symmetrically fixedly connected to the front and rear sides of the sieve plate 4. Second springs 619 are fixedly installed inside the auxiliary grooves 617. The end of the second spring 619 close to the box door 5 is fixedly connected with the fixed block 618.

[0037] The fixed block 618 is located inside the auxiliary slot 617. The fixed block 618 is slidably connected to the auxiliary slot 617. The front and rear sides of the sieve plate 4 are in contact with the inner wall of the installation box 2.

[0038] Embodiment 1: As Figures 1-11 shown, the operator inputs agricultural products from the feed inlet 3 and starts the driving motor 62 and the electric heating coil 10 to work. The agricultural products fall onto the sieve plate 4 in the installation box 2 through the connecting pipe 13. The electric heating coil 10 heats to assist in drying the agricultural products, facilitating subsequent screening. The two driving motors 62 drive the reciprocating lead screw 63 to rotate. The connecting plate 66 limits the movement of the moving sleeve 64. When the reciprocating lead screw 63 rotates, it will drive the moving sleeve 64 to move linearly back and forth. The two moving sleeves 64 both drive the left push plate 67 to move. When the connecting plate 66 moves in the sliding groove 65, it will squeeze the arc-shaped sleeve 616. The arc-shaped sleeve 616 is forced to slide into the installation groove 614 and compress the first spring 615, so that the arc-shaped sleeve 616 will not block the normal sliding of the connecting plate 66, and the arc-shaped sleeve 616 can play a blocking role for the sliding groove 65, reducing the splashing of agricultural products from the sliding groove 65.

[0039] The left push plate 67 drives the right push plate 68 to move, so that the left push plate 67 and the right push plate 68 will also move back and forth. The left push plate 67 and the right push plate 68 are convenient for pushing and spreading the agricultural products on the sieve plate 4, reducing the accumulation of agricultural products. And the movement of the connecting plate 66 drives the steel rope 611 to move. The upper guide wheel 69 and the lower guide wheel 610 guide the steel rope 611.

[0040] When the moving sleeve 64 moves to the right, the sieve plate 4 is pulled through the connecting plate 66 and the steel rope 611. The sieve plate 4 slides inside the side groove 612. The sieve plate 4 drives the fixed block 618 to slide in the auxiliary slot 617. The fixed block 618 compresses the second spring 619. When the moving sleeve 64 moves to the left, the elastic force of the second spring 619 drives the fixed block 618 and the sieve plate 4 to reset, realizing the reciprocating shaking and screening of the sieve plate 4. The agricultural products with qualified dimensions fall through the sieve holes and are guided by the trapezoidal plate 73 and fall into the collection box 8 through the blanking groove 11 for collection. And through the pushing of the left push plate 67 and the right push plate 68, combined with the reciprocating screening of the sieve plate 4, the screening efficiency is improved, and the problems that when there is a large amount of agricultural products fed at one time and they are piled up, or when the agricultural products are unevenly distributed on the surface of the sieve mesh, both will affect the screening accuracy and screening effect are solved.

[0041] An auxiliary component 7 is arranged at the bottom of the sieve plate 4. The auxiliary component 7 includes symmetrically arranged bottom plates 71. The top of the bottom plates 71 is fixedly connected to the bottom of the sieve plate 4. A trapezoidal plate 73 is slidably installed between the two bottom plates 71. A cleaning rod 75 is rotatably installed at the top of the trapezoidal plate 73. Guide grooves 710 are respectively opened on one side of the front and back of the inner wall of the installation box 2. The guide grooves 710 are composed of an arc part and a strip part.

[0042] The inside of the bottom plate 71 is vertically and uniformly provided with sliding grooves 72. One side of the trapezoidal plate 73 close to the bottom plate 71 is fixedly connected with a sliding rod 74. The sliding rod 74 is slidably connected with the sliding groove 72. There are no less than four sliding grooves 72. The number of trapezoidal plates 73 is the same as that of the sliding grooves 72. The sliding rod 74 passes through the sliding groove 72 and is slidably connected with the guiding groove 710.

[0043] The tops of the trapezoidal plates 73 are uniformly and rotatably provided with cleaning rods 75. A cross bar 76 is fixedly connected between the two bottom plates 71. The number of cross bars 76 is the same as that of the trapezoidal plates 73. Symmetrically fixed circles 77 are fixedly connected to both sides of the cross bar 76.

[0044] The total number of the cleaning rods 75 is the same as the number of the sieve holes of the sieve plate 4, and they are vertically corresponding one by one. The cleaning rods 75 are slidably connected with the fixed circles 77. A spiral groove 78 is provided inside the fixed circle 77. A hemispherical block 79 is fixedly connected to the outer side of the middle part of the cleaning rod 75. The hemispherical block 79 is slidably connected with the spiral groove 78.

[0045] Embodiment 2: As Figures 12-14 shown, when the sieve plate 4 moves, it will drive the two bottom plates 71 at the bottom to move. The bottom plates 71 drive the multiple trapezoidal plates 73 inside to move. The sliding rod 74 slides inside the guiding groove 710. The guiding groove 710 is composed of an arc part and a strip part. When the sliding rod 74 slides to the topmost part of the arc part, it is in the highest position. When the sliding rod 74 is located in the strip part, it is in the lowest position. Thus, the intermittent up-and-down movement of the sliding rod 74 is realized. The sliding groove 72 assists the sliding of the sliding rod 74. The movement of the sliding rod 74 drives the trapezoidal plate 73 and the cleaning rod 75 to move up and down. The vertical positions of the cross bar 76 and the fixed circle 77 remain unchanged.

[0046] When the cleaning rod 75 rises, it drives the hemispherical block 79 to slide inside the spiral groove 78, so that the cleaning rod 75 will rotate while rising. It is convenient for the multiple cleaning rods 75 to intermittently rise and insert and rotate to clean the sieve holes of the sieve plate 4. Thus, the blockage of the sieve plate 4 is reduced, and the screening efficiency of the sieve plate 4 is improved. The problem that the agricultural product materials may be further extruded into the sieve holes during the scraping and cleaning of the sieve mesh is solved.

[0047] Working principle: When using this device, first, as Figures 1-14As shown, the operator inputs agricultural products from the feed inlet 3 and starts the driving motor 62 and the electric heating coil 10. The agricultural products fall onto the sieve plate 4 in the installation box 2 through the connecting pipe 13. The electric heating coil 10 heats to assist in drying the agricultural products, facilitating subsequent screening. The two driving motors 62 drive the reciprocating screw rod 63 to rotate. The connecting plate 66 limits the movement of the moving sleeve 64. When the reciprocating screw rod 63 rotates, it will drive the moving sleeve 64 to move linearly back and forth. The arc-shaped sleeve 616 does not block the normal sliding of the connecting plate 66, and the arc-shaped sleeve 616 can block the sliding groove 65, reducing the splashing of agricultural products from the sliding groove 65. The left push plate 67 and the right push plate 68 will also move back and forth, cooperating with the reciprocating screening of the sieve plate 4 to improve the screening efficiency. When the sieve plate 4 moves, it will drive the two bottom plates 71 at the bottom to move. The bottom plates 71 drive the multiple trapezoidal plates 73 inside to move. The sliding rod 74 slides inside the guiding groove 710. The guiding groove 710 is a combination of an arc-shaped part and a strip-shaped part. The movement of the sliding rod 74 drives the trapezoidal plate 73 and the cleaning rod 75 to move up and down. When the cleaning rod 75 rises, it drives the hemispherical block 79 to slide inside the spiral groove 78, causing the cleaning rod 75 to rotate while rising, facilitating the intermittent rising of multiple cleaning rods 75 to insert and rotate to clean the sieve holes of the sieve plate 4, thereby reducing the blockage of the sieve plate 4 and improving the screening efficiency of the sieve plate 4.

[0048] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A screening device for agricultural product processing, comprising a support base (1) and an installation box (2) fixedly installed on the top of the support base (1). A connecting pipe (13) is fixedly installed on the top of the installation box (2), and a feed inlet (3) is fixedly installed on the top of the connecting pipe (13). It is characterized in that It further includes: A sieve plate (4) is horizontally and slidably installed inside the installation box (2). A box door (5) is snap-fitted and fixedly installed on one side of the installation box (2). A leveling component (6) is arranged on the side of the top of the installation box (2) away from the box door (5), and an auxiliary component (7) is arranged at the bottom of the sieve plate (4). The leveling component (6) includes two groups of fixing components symmetrically arranged vertically. Each group of fixing components includes two fixing plates (61) symmetrically arranged horizontally. A driving motor (62) is fixedly installed between the two fixing plates (61) horizontally. The output end of the driving motor (62) is fixedly connected with a reciprocating lead screw (63). The reciprocating lead screw (63) is rotatably installed on the fixing plate (61). A moving sleeve (64) is threadedly connected to the outside of the reciprocating lead screw (63). Sliding grooves (65) are symmetrically and vertically opened on the top of the installation box (2). The bottom of the moving sleeve (64) is fixedly connected with a connecting plate (66). The connecting plate (66) is slidably connected with the sliding groove (65). The bottoms of the two connecting plates (66) are fixedly connected with the same left pushing plate (67). A right pushing plate (68) is fixedly connected to one side of the left pushing plate (67). An upper guide wheel (69) and a lower guide wheel (610) are fixedly installed on the other side of the installation box (2). A steel cable (611) is fixedly connected to the side of the connecting plate (66) close to the upper guide wheel (69). The end of the steel cable (611) away from the connecting plate (66) bypasses the upper guide wheel (69) and the lower guide wheel (610) and is fixedly connected to one side of the sieve plate (4). The leveling component (6) further includes symmetrically opened installation grooves (614). The installation grooves (614) are symmetrically arranged on the front and back sides of the sliding groove (65). The installation grooves (614) are communicated with the sliding groove (65). A number of first springs (615) are fixedly installed at equal intervals inside the installation grooves (614). An arc-shaped sleeve (616) is fixedly installed on one side of each first spring (615) close to the sliding groove (65). Auxiliary grooves (617) are opened on one side of the front and back inner walls of the installation box (2). Fixing blocks (618) are symmetrically and fixedly connected to the front and back sides of the sieve plate (4). A second spring (619) is fixedly installed inside the auxiliary grooves (617). The end of the second spring (619) close to the box door (5) is fixedly connected to the fixing block (618). The auxiliary component (7) includes a bottom plate (71) arranged symmetrically. The top of the bottom plate (71) is fixedly connected to the bottom of the sieve plate (4). A trapezoidal plate (73) is slidably installed between the two bottom plates (71). A cleaning rod (75) is rotatably installed on the top of the trapezoidal plate (73). On one side of the front and back inner walls of the installation box (2), a guiding groove (710) is opened. The guiding groove (710) is composed of a combined arc part and a strip part.

2. The screening device for agricultural product processing according to claim 1, wherein: The feed inlet (3) is communicated with the inside of the installation box (2) through a connecting pipe (13). An electric heating coil (10) is fixedly installed inside the connecting pipe (13). The box door (5) is fixedly installed on the installation box (2) through bolts. A collection box (8) is arranged below the support base (1). An observation window (9) is fixedly installed on one side of the front of the installation box (2). A blanking groove (11) is opened in the middle of the support base (1). Guide plates (12) are symmetrically and fixedly connected below the inside of the installation box (2).

3. A screening device for agricultural product processing according to claim 2, characterized in that: The position of the sliding groove (65) corresponds to the reciprocating lead screw (63). The left push plate (67) is located above the sieve plate (4). The upper guide wheel (69) is located above the lower guide wheel (610). The lower guide wheel (610) is located above the sieve plate (4).

4. A screening device for agricultural product processing according to claim 1, characterized in that: On the upper parts of both sides of the installation box (2), side grooves (612) are symmetrically opened. The steel rope (611) is slidably connected to the installation box (2). The sieve plate (4) is slidably connected to the side grooves (612). Sieve holes are evenly opened inside the sieve plate (4). A number of convex blocks (613) are evenly fixedly connected to the top of the sieve plate (4). The number of the convex blocks (613) is trapezoidally arranged.

5. A screening device for agricultural product processing according to claim 4, wherein: The number of the first springs (615) is not less than three. The arc-shaped sleeve (616) is sleeved outside the first springs (615). One side of the arc-shaped sleeve (616) away from the installation groove (614) is arc-shaped. The three arc-shaped sleeves (616) are horizontally and evenly arranged.

6. The screening device for agricultural product processing according to claim 5, wherein: The fixing block (618) is located inside the auxiliary groove (617). The fixing block (618) is slidably connected to the auxiliary groove (617). The front and back sides of the sieve plate (4) are attached to the inner wall of the installation box (2).

7. A screening device for agricultural product processing according to claim 1, characterized in that: Vertically and evenly opened sliding grooves (72) are arranged inside the bottom plate (71). A sliding rod (74) is fixedly connected to one side of the trapezoidal plate (73) close to the bottom plate (71). The sliding rod (74) is slidably connected to the sliding grooves (72). The number of the sliding grooves (72) is not less than four. The number of the trapezoidal plates (73) is the same as that of the sliding grooves (72). The sliding rod (74) passes through the sliding grooves (72) and is slidably connected to the guiding groove (710).

8. A screening device for agricultural product processing according to claim 7, characterized in that: Cleaning rods (75) are evenly rotatably installed on the top of the trapezoidal plate (73). A cross bar (76) is fixedly connected between the two bottom plates (71). The number of the cross bars (76) is the same as that of the trapezoidal plates (73). Fixing rings (77) are symmetrically and fixedly connected to both sides of the cross bar (76).

9. A screening device for agricultural product processing according to claim 8, wherein: The total number of the cleaning rods (75) is the same as the number of the sieve holes of the sieve plate (4), and the vertical positions correspond one by one. The cleaning rods (75) are slidably connected with the fixing ring (77). A thread groove (78) is formed on the inner side of the fixing ring (77). A hemispherical block (79) is fixedly connected to the outer side of the middle part of the cleaning rod (75). The hemispherical block (79) is slidably connected with the thread groove (78).

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