Multistage sorting machine for processing of grain rice

Abstract

The application relates to the technical field of grain processing, and discloses a multi-stage sorting machine for grain rice processing, which comprises a supporting frame, a conveying belt assembly sleeved on the inner side of the top of the supporting frame, a first power output assembly is transmissionally connected to one side of the conveying belt assembly, and a sorting box is arranged outside the top of the supporting frame. The second power output assembly is arranged, the sorting box is stably driven through an adjusting shaft and an engaging guide assembly, the rice raw materials input into the sorting box through the composite material guide pipe are reciprocatingly and rotatably moved, the first sorting filter screen, the second sorting filter screen and the third sorting filter screen are arranged in cooperation to realize multi-stage sorting and filtering, the automatic multi-stage sorting effect is realized, and the rice materials of different sizes at the sorting position can be output in stages through the conveying belt assembly, favorable conditions are created for automatic collection, and the overall process operation effect is optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain processing, in particular to a multi-stage sorting machine for grain rice processing. BACKGROUND

[0002] With the improvement of people's living standards, modern consumers' requirements for grain quality are also improving. For example, to meet the high-quality needs of consumers, during the production process, rice will be sorted by size specifications, so that complete grain rice of the same size and quality is stored independently, meeting the aesthetic requirements while separating out defective materials such as broken rice and rice residue for subsequent application in other ways.

[0003] However, the existing multi-stage sorting machine uses the principle of air selection, uses air flow to impact rice of different weights, and then collects rice of different weights that have deviated by a distance. However, the applicant found in actual operation that the broken rice and smaller rice residue were mixed together in the final filtered material due to the upper limit of the air selection sorting effect. If further sorting is required, an additional filtering process with a filter screen is needed, which increases the processing cost and prolongs the production cycle. Therefore, the multi-stage sorting machine still needs to be improved. SUMMARY

[0004] The present application provides a multi-stage sorting machine for grain rice processing, which solves the problems raised in the background art.

[0005] The present application provides the following technical solution: a multi-stage sorting machine for grain rice processing, comprising a support frame, a conveyor belt assembly sleeved on the top inner side of the support frame, a first power output assembly is drivingly connected to one side of the conveyor belt assembly, a sorting box is provided on the top outer side of the support frame, a composite material guide pipe communicating with the space of the sorting box is connected to the top of the sorting box, a first sorting filter screen, a second sorting filter screen and a third sorting filter screen are sleeved on the top of the sorting box from top to bottom, the mesh number of the first sorting filter screen, the second sorting filter screen and the third sorting filter screen increases, and a discharge port is formed in the bottom of the sorting box, three discharge pipe fittings are sleeved on one side of the sorting box, and the three discharge pipe fittings are located successively on the top outer side of the first sorting filter screen, the top outer side of the second sorting filter screen and the top outer side of the third sorting filter screen.

[0006] The front and rear ends of the sorting box bottom are fixedly connected with adjusting shafts, one end of each of the two adjusting shafts is sleeved with a bearing seat through a bearing, and one end of one of the adjusting shafts is drivingly connected with a second power output assembly, the two bearing seats are respectively installed on the front and rear end surfaces of the middle part of the support rack, the outer side of the sorting box bottom is movably sleeved with a support sleeve plate which is nested in the inner side of the top of the support rack, the two sides of the support sleeve plate are respectively connected with a semi-open ring plate and an auxiliary sleeve plate, and the top of the auxiliary sleeve plate is fixedly sleeved with a negative pressure drainage pipe.

[0007] The first sorting filter screen cooperates with the top inner wall of the sorting box to form a first-stage sorting space, the bottom of the first sorting filter screen cooperates with the top of the second sorting filter screen and the inner wall of the middle part of the sorting box to form a second-stage sorting space, and the bottom of the second sorting filter screen cooperates with the bottom of the third sorting filter screen and the inner wall of the bottom of the sorting box to form a third-stage sorting space.

[0008] The three discharge pipe assemblies each consist of a discharge cone pipe and a sealing cover which is connected with the open end of the discharge cone pipe through external threads, the three discharge cone pipes correspond to the first-stage sorting space, the second-stage sorting space and the third-stage sorting space respectively, thereby meeting the discharge requirements of the three sorting spaces, four transparent plates are fixedly nested in the front end of the sorting box, the four transparent plates correspond to the first-stage sorting space, the second-stage sorting space, the third-stage sorting space and the front end space of the bottom of the sorting box respectively, and provide conditions for direct visual observation of the sorting situation by subsequent operators.

[0009] The conveying belt assembly consists of a conveying belt and two transmission shafts which are movably sleeved on the two sides of the conveying belt, the two transmission shafts are respectively sleeved in the two sides of the top of the support rack through bearings, the first power output assembly consists of a first bevel gear box and a first clutch servo motor which is drivingly connected with the input end of the first bevel gear box, a first support seat is fixedly installed between the surface of the housing of the first clutch servo motor and the surface of one side of the support rack, the output end of the bevel gear box is drivingly connected with the end head of the corresponding transmission shaft, and the conveying belt assembly and the first power output assembly are used in cooperation, so as to meet the automatic conveying requirement after sorting of raw materials.

[0010] The second power output assembly consists of a second bevel gear box and a second clutch servo motor which is drivingly connected with the input end of the second bevel gear box, the input end of the second bevel gear box is drivingly connected with the end head of one end of the corresponding adjusting shaft, a second support seat is fixedly installed between the surface of the housing of the second clutch servo motor and the surface of the middle part of the support rack, the second power output assembly cooperates with the adjusting shaft to exert reciprocating rotation power on the sorting box, so as to move the raw materials in the sorting box left and right, and increase the automatic filtering and sorting speed.

[0011] The two adjustment shafts are provided with an engagement guide assembly, the engagement guide assembly comprises a gear shaft, the end of the gear shaft is sleeved with a auxiliary bearing seat fixedly installed on the middle surface of the support frame through a bearing, and the two ends of the gear shaft are engaged with arc-shaped tooth plates, the arc-shaped tooth plates are fixedly connected with linkage plates between the middle surfaces of the corresponding adjustment shafts, and the stability of the subsequent sorting box in the reciprocating rotation process is improved by using the engagement guide assembly.

[0012] The support sleeve plate is fixedly sleeved on the top inner side of the support frame, and the bottom surface of the support sleeve plate is connected with the top surface of the conveying belt assembly, one side of the semi-open ring plate is a tapered open structure, and the output raw materials are conveniently collected.

[0013] The side of the auxiliary sleeve plate is sleeved with a sealing plate piece, the sealing plate piece comprises a sealing plate body, the top of the sealing plate body is sleeved with a bearing on the inside of the side of the auxiliary sleeve plate, and the bottom of the sealing plate body is connected with the top surface of the conveying belt assembly, the bearing end of the top of the sealing plate body penetrates through the side edge structure of the auxiliary sleeve plate and is fixedly connected with an iron block, the surface of the iron block is magnetically connected with an electromagnetic suction disc fixedly installed on the surface of the auxiliary sleeve plate, and the sealing plate piece can provide an open auxiliary sleeve plate internal space under different use requirements, and the conveying effect of the conveying belt assembly is used to conveniently collect the sorted raw materials.

[0014] The inside of the two sides of the support frame is sleeved with an auxiliary support platform, a plurality of damping grooves are formed in the top of the auxiliary support platform, the auxiliary support platform provides auxiliary support for the subsequent use of the collection container, the composite material guide pipe is composed of an elastic folding pipe and flange pipes and transition valve pipes fixedly connected at the two ends of the elastic folding pipe, and the flange pipes are fixedly installed on the top structure of the sorting box through screws, and the used composite material guide pipe can meet the requirements of the sorting box reciprocating rotation and the raw material conveying requirements.

[0015] The first-stage sorting space, the second-stage sorting space and the third-stage sorting space are all provided with electromagnets, the three electromagnets are respectively nested in the inner wall on one side of the top, one side of the middle and one side of the bottom of the sorting box, the magnetic surfaces of the three electromagnets are all magnetically connected with a plurality of iron balls, when the filtering structure formed by the first sorting filter screen, the second sorting filter screen and the third sorting filter screen is blocked, the iron balls can be released by closing the electromagnets, and then the iron balls are synchronously moved in the top surface of the corresponding transition structure by the reciprocating rotation of the sorting box, the rice grains clamped in the filtering gap are extruded and impacted, and the blocking of the filtering structure is cleared.

[0016] The application has the following advantages:

[0017] 1、The present application is provided by setting the second power output component by adjusting the shaft, engaging guide component stable transmission sorting box, and then make by composite material pipe into the sorting box inside the rice raw materials reciprocating rotation, the first sorting filter screen, the second sorting filter screen, the third sorting filter screen are set to carry out multi-stage sorting filter, realize the effect of automatic multi-stage sorting, one-time, and the different size of the rice material in the sorting can be output by the conveyor belt assembly in stages, create favorable conditions for automatic collection, optimize the overall process operation effect.

[0018] 2、The present application is provided by setting the support sleeve plate, semi-open ring plate, auxiliary sleeve plate, negative pressure drainage tube, sealing plate component auxiliary material guide device, with the conveyor belt assembly combination use, can provide direct conveying and collecting conditions and negative pressure absorption cleaning conditions for the smallest rice slag raw material, solve the problems existing in the prior art.

[0019] 3、The present application is provided by setting the three electromagnets, and the corresponding multiple ferrous balls of the three electromagnets form the unblocking structure in the first stage sorting space, the second stage sorting space and the third stage sorting space in the sorting box in turn, and then the corresponding electromagnet releases multiple ferrous balls when the filter structure in any one sorting space is blocked, and then the multiple ferrous balls move synchronously with the reciprocating rotation of the sorting box, and then impact the blocked rice grains on the surface of the corresponding filter structure, meet the automatic unblocking demand, in addition, the unblocking structure can also be applied to the metal impurity screening in the rice raw material. DETAILED DESCRIPTION

[0020] Figure 1 is the front view of the structure of the present application;

[0021] Figure 2 is the rear view of the structure of the present application;

[0022] Figure 3 is the top view of the support frame of the structure of the present application;

[0023] Figure 4 is the local sectional view of the sorting box of the structure of the present application;

[0024] Figure 5 is the bottom view of the support sleeve plate of the structure of the present application;

[0025] Figure 6 is the enlarged view of the engaging guide assembly of the structure of the present application;

[0026] Figure 7 is the enlarged view of A in the structure of the present application. Figure 2

[0027] ​In the figure: 1, support frame; 2, conveying belt assembly; 3, first power output assembly; 4, sorting box; 5, composite material guide pipe; 6, first sorting filter screen; 7, second sorting filter screen; 8, third sorting filter screen; 9, discharge pipe; 10, adjusting shaft; 11, support sleeve plate; 12, semi-open ring plate; 13, auxiliary sleeve plate; 14, second power output assembly; 15, meshing guide assembly; 151, gear shaft; 152, arc-shaped tooth plate; 153, linkage plate; 16, sealing plate; 161, sealing plate body; 162, electromagnetic suction disc; 163, iron block; 17, auxiliary support platform; 18, electromagnet; 19, iron ball; 20, transparent plate; 21, negative pressure drainage pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] Please refer to Figures 1-7 A multi-stage sorting machine for processing rice includes a support frame 1, a conveying belt assembly 2 sleeved on the inner side of the top of the support frame 1, a first power output assembly 3 drivingly connected to one side of the conveying belt assembly 2, the conveying belt assembly 2 being composed of a conveying belt and two transmission shafts movably sleeved on both sides of the conveying belt, the two transmission shafts being respectively sleeved on the inner sides of the top of the support frame 1 through bearings, the first power output assembly 3 being composed of a first bevel gear box and a first clutch servo motor drivingly connected to the input end of the first bevel gear box, a first support seat being fixedly installed between the surface of the housing of the first clutch servo motor and the surface of one side of the support frame 1, the output end of the bevel gear box being drivingly connected to the end of the corresponding transmission shaft, the conveying belt assembly 2 and the first power output assembly 3 being used in cooperation to meet the automatic conveying requirement after sorting raw materials;

[0030] A sorting box 4 is arranged on the top of the support frame 1, a composite material guide pipe 5 in communication with the space of the sorting box 4 is connected to the top of the sorting box 4, a first sorting filter screen 6, a second sorting filter screen 7 and a third sorting filter screen 8 are sleeved on the top of the sorting box 4 from top to bottom, the mesh numbers of the three sorting filter screens 6, 7 and 8 increase in order, a discharge port is formed in the bottom of the sorting box 4, three discharge pipes 9 are sleeved on one side of the sorting box 4, and the three discharge pipes 9 are located outside the top of the first sorting filter screen 6, the top of the second sorting filter screen 7 and the top of the third sorting filter screen 8 in order;

[0031] The first sorting filter screen 6 cooperates with the top inner wall of the sorting box 4 to form a first-stage sorting space, the bottom of the first sorting filter screen 6 cooperates with the top of the second sorting filter screen 7 and the inner wall of the middle part of the sorting box 4 to form a second-stage sorting space, the bottom of the second sorting filter screen 7 cooperates with the bottom of the third sorting filter screen 8 and the inner wall of the bottom of the sorting box 4 to form a third-stage sorting space, and the three discharge pipe fittings 9 each consist of a discharge cone pipe and a sealing cover connected with the outer thread of the open port of the discharge cone pipe, the three discharge cone pipes correspond to the first-stage sorting space, the second-stage sorting space and the third-stage sorting space respectively, thereby meeting the material conveying requirements of the three sorting spaces, and four transparent plates 20 are fixedly and nested in the front end of the sorting box 4, the four transparent plates 20 correspond to the first-stage sorting space, the second-stage sorting space, the third-stage sorting space and the front end space at the bottom of the sorting box 4 respectively, thereby providing conditions for the direct visual observation of the sorting situation by the subsequent operators;

[0032] The front end and the rear end of the bottom of the sorting box 4 are fixedly connected with the adjusting shafts 10, one end of each of the two adjusting shafts 10 is sleeved with a bearing seat through a bearing, and one end of one of the adjusting shafts 10 is drivingly connected with a second power output assembly 14, the second power output assembly 14 consists of a second bevel gear box and a second clutch servo motor drivingly connected with the input end of the second bevel gear box, the input end of the second bevel gear box is drivingly connected with the one end of the corresponding adjusting shaft 10, and a second support seat is fixedly installed between the surface of the housing of the second clutch servo motor and the middle surface of the support rack 1, the second power output assembly 14 cooperates with the adjusting shaft 10 to exert a reciprocating rotation power on the sorting box 4, thereby moving the raw materials in the sorting box 4 left and right and increasing the automatic filtering and sorting speed;

[0033] The two bearing seats are installed on the front and rear end surfaces of the middle part of the support rack 1, the outside of the bottom of the sorting box 4 is movably sleeved with a support sleeve plate 11 nested in the inside of the top of the support rack 1, the two sides of the support sleeve plate 11 are connected with a semi-open ring plate 12 and an auxiliary sleeve plate 13 respectively, the support sleeve plate 11 is fixedly sleeved on the inside of the top of the support rack 1, and the bottom surface of the support sleeve plate 11 is attached and connected with the top surface of the conveying belt assembly 2, one side of the semi-open ring plate 12 is a conical open structure, which facilitates the folding of the output raw materials, and the top of the auxiliary sleeve plate 13 is fixedly sleeved with a negative pressure drainage pipe 21;

[0034] The two adjusting shafts 10 are provided with an engagement guide assembly 15, the engagement guide assembly 15 comprises a gear shaft 151, one end of the gear shaft 151 is sleeved with an auxiliary bearing seat fixedly installed on the middle surface of the support rack 1 through a bearing, and the two ends of the gear shaft 151 are both engaged with an arc-shaped toothed plate 152, a linkage plate 153 is fixedly connected between the arc-shaped toothed plate 152 and the middle surface of the corresponding adjusting shaft 10, and the engagement guide assembly 15 is used to improve the stability of the subsequent sorting box 4 during the reciprocating rotation process;

[0035] The side of the auxiliary sleeve plate 13 is sleeved with a sealing plate piece 16, the sealing plate piece 16 comprises a sealing plate body 161, the top of the sealing plate body 161 is sleeved in the inside of the side of the auxiliary sleeve plate 13 through a bearing, and the bottom of the sealing plate body 161 is connected with the top surface of the conveying belt assembly 2, the bearing end head sleeved at the top of the sealing plate body 161 penetrates the side edge structure of the auxiliary sleeve plate 13 and is fixedly connected with an iron block 163, the surface of the iron block 163 is magnetically connected with an electromagnetic chuck 162 fixedly installed on the surface of the auxiliary sleeve plate 13, and the sealing plate piece 16 can provide an open auxiliary sleeve plate 13 internal space under different use requirements, and the conveying effect of the conveying belt assembly 2 is used to conveniently collect the sorted raw materials.

[0036] The inside of the both sides of the support rack 1 is sleeved with an auxiliary support platform 17, a plurality of damping grooves are formed in the top of the auxiliary support platform 17, the auxiliary support platform 17 provides auxiliary support for the subsequent use of the collecting container, the composite material guide pipe 5 is composed of an elastic folding pipe and flange pipes and transition valve pipes fixedly connected at the two ends of the elastic folding pipe, the flange pipes are fixedly installed on the top structure of the sorting box 4 through screws, and the used composite material guide pipe 5 can meet the requirements of the raw material conveying while meeting the requirements of the reciprocating rotation of the sorting box 4.

[0037] The first-stage sorting space, the second-stage sorting space and the third-stage sorting space are all provided with electromagnets 18, the three electromagnets 18 are respectively nested in the inner wall of the top side, the middle side and the bottom side of the sorting box 4, the magnetic attraction surfaces of the three electromagnets 18 are all magnetically connected with a plurality of iron balls 19, when the filtering structure formed by the first sorting filter screen 6, the second sorting filter screen 7 and the third sorting filter screen 8 is blocked, the plurality of iron balls 19 can be released by closing the electromagnets 18, and then the plurality of iron balls 19 can be synchronously moved in the corresponding transition structure top surface by the reciprocating rotation of the sorting box 4, so that the rice grains clamped in the filtering gap are extruded and impacted, and the unblocking treatment of the filtering structure is realized.

[0038] Working principle:

[0039] Embodiment one

[0040] The open end of the negative pressure drainage tube 21 is connected with the existing negative suction equipment, the composite material guide pipe 5 is connected with the raw material bin, and then the rice raw material to be sorted is conveyed to the top inside of the sorting box 4 through the composite material guide pipe 5, the transparent plate 20 at the front end of the sorting box 4 is observed to observe that the rice raw material is conveyed to a certain amount, and then the valve in the composite material guide pipe 5 is closed.

[0041] The second brake servo motor inside the second power output assembly 14 is started and the reciprocating output in forward and reverse directions is carried out through the second bevel gear box, then the corresponding adjusting shaft 10 drives the sorting box 4 and the composite guide pipe 5 to rotate at a fixed distance left and right, thereby using the combined effects of gravity and centrifugal rotation to make the rice raw materials on the top of the sorting box 4 quickly pass through the first sorting filter screen 6, the second sorting filter screen 7 and the third sorting filter screen 8 for filtering and sorting, and then the rice of different sizes is filtered into the first-level sorting space, the second-level sorting space and the third-level sorting space, respectively, while the smallest rice residue falls through the discharge port at the bottom of the sorting box 4 onto the top surface of the middle part of the conveyor belt assembly 2, and then the first brake servo motor inside the first power output assembly 3 is started and the reverse output is carried out through the first bevel gear box, so that the rice residue falling onto the top surface of the middle part of the conveyor belt assembly 2 is transported into the inside of the auxiliary sleeve plate 13, and at the same time, the negative suction equipment is started to automatically suction and clean the rice residue transported by the conveyor belt assembly 2 through the negative pressure drainage pipe 21.

[0042] After the sorting and filtering of the rice raw materials inside the sorting box 4 and the complete transportation of the rice residue into the inside of the auxiliary sleeve plate 13 by the conveyor belt assembly 2, the first brake servo motor is temporarily closed, the sorting box 4 is rotated and adjusted to the inclined direction of the semi-open ring plate 12 through the second brake servo motor inside the second power output assembly 14 and the corresponding second bevel gear box, then the sealing cover in the first-level sorting space corresponding discharge pipe 9 is screwed, the rice raw materials collected inside the first-level sorting space are dropped onto the top surface of one side of the conveyor belt assembly 2, the semi-open ring plate 12 provides a shielding effect, then the first brake servo motor inside the first power output assembly 3 is started and the forward output is carried out through the first bevel gear box, so that the rice raw materials falling onto the top surface of one side of the conveyor belt assembly 2 move towards the open port of the semi-open ring plate 12, the collection container is placed on the top of the corresponding auxiliary support platform 17 and aligned with the open side of the conveyor belt assembly 2, and then the automatic collection is carried out by using the conveying effect of the conveyor belt assembly 2.

[0043] After the rice sorted and filtered in the first-level sorting space is completed, the second-level sorting space corresponding discharge pipe 9 and the third-level sorting space corresponding discharge pipe 9 are disassembled in sequence according to the above steps and collected by the conveyor belt assembly 2, and then the operation is repeated according to the initial steps.

[0044] Example Two

[0045] For the sorting and filtering of rice raw materials and the collection of the above steps according to the steps of the first embodiment, another way can be used for the collection of rice residues in the sorting and filtering, that is, the collection container is placed on the top of the auxiliary support platform 17 near the auxiliary sleeve plate 13 and aligned with the opening on the other side of the conveying belt assembly 2, and then during the conveying of the conveying belt assembly 2, the electromagnetic suction cup 162 inside the sealing plate 16 is closed, the sealing plate body 161 is turned over, and the sealing plate body 161 is turned from the vertical state on the top of the auxiliary sleeve plate 13 to the parallel state on the top of the auxiliary sleeve plate 13, then the electromagnetic suction cup 162 is re-opened, and the iron block 163 linked with the sealing plate body 161 by the electromagnetic suction cup 162 is magnetically attracted and limited, thereby opening the space on one side of the auxiliary sleeve plate 13 to directly collect the rice residues conveyed by the conveying belt assembly 2.

[0046] Example three

[0047] For the sorting and filtering of rice raw materials and the collection of the above steps according to the steps of the first embodiment, another way can be used for the collection of rice residues in the sorting and filtering, that is, the collection container is placed on the top of the auxiliary support platform 17 near the auxiliary sleeve plate 13 and aligned with the opening on the other side of the conveying belt assembly 2, and then during the conveying of the conveying belt assembly 2, the electromagnetic suction cup 162 inside the sealing plate 16 is closed, the sealing plate body 161 is turned over, and the sealing plate body 161 is turned from the vertical state on the top of the auxiliary sleeve plate 13 to the parallel state on the top of the auxiliary sleeve plate 13, then the electromagnetic suction cup 162 is re-opened, and the iron block 163 linked with the sealing plate body 161 by the electromagnetic suction cup 162 is magnetically attracted and limited, thereby opening the space on one side of the auxiliary sleeve plate 13 to directly collect the rice residues conveyed by the conveying belt assembly 2.

[0048] Then, the second clutch servo motor inside the second power output assembly 14 is started and the second bevel gear box is used for forward and reverse reciprocating output, and then the corresponding adjusting shaft 10 drives the sorting box 4 and the composite guide pipe 5 to rotate left and right at a certain distance, so that the multiple iron balls 19 in the first sorting space flow and impact the blocked rice grains on the top surface of the first sorting filter screen 6, the multiple iron balls 19 in the second sorting space flow and impact the blocked rice grains on the top surface of the second sorting filter screen 7, and the multiple iron balls 19 in the third sorting space flow and impact the blocked rice grains on the top surface of the third sorting filter screen 8, thereby realizing automatic unblocking.

[0049] After the unblocking is completed, the three electromagnets 18 are re-opened, and the three electromagnets 18 reset the corresponding iron balls 19 by magnetic attraction.

[0050] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Additionally, the terms "comprises," "comprising," "includes," "including," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, no element, component, or process in the present disclosure should be construed as critical or essential unless the specification

[0051] While the embodiments of the application have been shown and described, it is to be understood that the embodiments described are only by way of example and are not limiting of the scope of the application. Accordingly, many modifications, well known per se to those skilled in the art, can be made without departing from the spirit and scope of the application, which is limited only by the scope of the appended claims and their equivalents.

Claims

1. A multi-stage sorting machine for grain and rice processing, comprising a support frame (1) and a conveyor belt assembly (2) fitted inside the top of the support frame (1), wherein a first power output assembly (3) is drively connected to one side of the conveyor belt assembly (2), characterized in that: The top of the support frame (1) is externally provided with a sorting box (4), the top of the sorting box (4) is connected with a composite material guide pipe (5) in communication with the space itself, the top of the sorting box (4) is successively sleeved with a first sorting filter screen (6), a second sorting filter screen (7) and a third sorting filter screen (8) from top to bottom, the mesh numbers of the first sorting filter screen (6), the second sorting filter screen (7) and the third sorting filter screen (8) are increased, and the bottom of the sorting box (4) is provided with a discharge port, one side of the sorting box (4) is sleeved with three discharge pipe fittings (9), and the three discharge pipe fittings (9) are located outside the top of the first sorting filter screen (6), the top of the second sorting filter screen (7) and the top of the third sorting filter screen (8) in sequence; The first sorting filter screen (6) and the top inner wall of the sorting box (4) form a first-stage sorting space, the bottom of the first sorting filter screen (6), the top of the second sorting filter screen (7) and the inner wall of the middle part of the sorting box (4) form a second-stage sorting space, and the bottom of the second sorting filter screen (7), the bottom of the third sorting filter screen (8) and the inner wall of the bottom of the sorting box (4) form a third-stage sorting space; The first-stage sorting space, the second-stage sorting space and the third-stage sorting space are all provided with electromagnets (18), the three electromagnets (18) are respectively nested in the inner wall of one side of the top of the sorting box (4), the inner wall of one side of the middle part and the inner wall of one side of the bottom of the sorting box (4), and the magnetic attraction surfaces of the three electromagnets (18) are all magnetically connected with a plurality of iron balls (19); The front end and the rear end of the bottom of the sorting box (4) are fixedly connected with adjusting shafts (10), one end of each of the two adjusting shafts (10) is sleeved with a bearing seat through a bearing, one end of one of the adjusting shafts (10) is drivingly connected with a second power output assembly (14), the second power output assembly (14) is composed of a second bevel gear box and a second brake servo motor connected with the input end of the second bevel gear box, the input end of the second bevel gear box is drivingly connected with the one end of the corresponding adjusting shaft (10), a second supporting seat is fixedly installed between the surface of the shell of the second brake servo motor and the middle surface of the support frame (1), the two bearing seats are respectively installed on the front end surface and the rear end surface of the middle part of the support frame (1), the outside of the bottom of the sorting box (4) is movably sleeved with a supporting sleeve plate (11) nested in the inside of the top of the support frame (1), the two sides of the supporting sleeve plate (11) are respectively connected with a semi-open ring plate (12) and an auxiliary sleeve plate (13), and the top of the auxiliary sleeve plate (13) is fixedly sleeved with a negative pressure drainage pipe (21). Meshing guide assembly (15) is arranged between two adjusting shafts (10), the meshing guide assembly (15) includes gear shaft (151), the end of gear shaft (151) is sleeved with auxiliary bearing seat fixedly installed on the middle surface of support rack (1) through bearing, the both ends of gear shaft (151) are meshedly connected with arc-shaped toothed plate (152), and arc-shaped toothed plate (152) is fixedly connected with linkage plate (153) between the middle surface of corresponding adjusting shaft (10). The side of the auxiliary sleeve plate (13) is sleeved with a sealing plate (16), the sealing plate (16) includes a sealing plate body (161), the top of the sealing plate body (161) is sleeved with a bearing on the inside of one side of the auxiliary sleeve plate (13), and the bottom of the sealing plate body (161) is attached to the top surface of the conveyor belt assembly (2), the bearing end of the sealing plate body (161) is sleeved with an iron block (163) penetrating through the side edge structure of the auxiliary sleeve plate (13) and fixedly connected with an electromagnetic chuck (162) fixedly installed on the surface of the auxiliary sleeve plate (13).

2. The multi-stage sorting machine for processing grain rice according to claim 1, characterized in that: Three said discharge pipe (9) is composed of discharge cone pipe and discharge cone pipe opening port outer thread connection sealing cover, three said discharge cone pipe corresponds first grade selection space, second grade selection space, third grade selection space respectively, the front end of the sorting box (4) is fixedly nested with four transparent plates (20), four said transparent plate (20) corresponds first grade selection space, second grade selection space, third grade selection space and the front end space of the bottom of the sorting box (4) respectively.

3. The multi-stage sorting machine for processing grain rice according to claim 1, characterized in that: The conveyor belt assembly (2) is composed of a conveyor belt and a transmission shaft movably sleeved on both sides of the conveyor belt, two transmission shafts are respectively sleeved with bearings on both sides of the top of the support rack (1), the first power output assembly (3) is composed of a first bevel gear box and a first clutch servo motor connected with the input end of the first bevel gear box, a first support seat is fixedly installed between the surface of the housing of the first clutch servo motor and the surface of one side of the support rack (1), and the output end of the bevel gear box is in transmission connection with the end of the corresponding transmission shaft.

4. The multi-stage sorting machine for processing grain rice according to claim 1, characterized in that: The support sleeve plate (11) is fixedly sleeved on the top of the support rack (1), and the bottom surface of the support sleeve plate (11) is attached to the top surface of the conveyor belt assembly (2), and one side of the semi-open ring plate (12) is a tapered open structure.

5. The multi-stage sorting machine for processing grain rice according to claim 1, characterized in that: The inside of both sides of the support rack (1) is sleeved with an auxiliary support platform (17), a plurality of damping grooves are formed in the top of the auxiliary support platform (17), the composite guide pipe (5) is composed of an elastic folding pipe, a flange pipe fixedly connected with the elastic folding pipe at both ends, and a transition valve pipe, and the flange pipe is fixedly installed on the top structure of the sorting box (4) by screws.

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