Multi-stage sorting machine for grain rice processing

Abstract

The invention relates to the technical field of grain processing, and discloses a multi-stage sorting machine for grain rice processing, which comprises a support rack and a conveying belt assembly sleeved on the inner side of the top of the support rack, one side of the conveying belt assembly is in transmission connection with a first power output assembly, and a sorting box is arranged outside the top of the support rack. A second power output assembly is arranged to stably drive the sorting box through an adjusting shaft and a meshing guide assembly, then rice raw materials fed into the sorting box through a composite material guide pipe rotate and move in a reciprocating mode, and a first sorting filter screen, a second sorting filter screen and a third sorting filter screen which are arranged in a matched mode are used for conducting multi-stage sorting and filtering; the automatic multi-stage sorting effect is achieved at a time, the rice materials of different sizes at the sorting position can be output in a staged mode 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 invention relates to the technical field of grain processing, in particular to a multi-stage sorting machine for grain rice processing. Background Art

[0002] As people's living standards improve, modern consumers' requirements for food quality are also constantly increasing. Take rice as an example. In order to meet consumers' high-quality needs, rice will be sorted in multiple levels according to size specifications during the specific production process, so that complete grains of rice of the same size and quality can be stored separately. While satisfying the aesthetics, it also separates out broken rice, rice dregs and other undesirable raw materials for subsequent applications in other ways.

[0003] However, the currently used multi-stage sorting machines mostly use the pneumatic separation principle, using airflow to impact rice of different weights, and then offset the rice of different weights for targeted collection. However, the applicant found in the actual operation process that in the raw materials finally filtered out, broken rice and smaller rice residues are mixed together and output due to the upper limit of the pneumatic separation effect. If further sorting is desired in the future, an additional filtering process of a filter mesh is required, which will increase the processing cost and extend the production cycle. It can be seen that we still need to further improve the multi-stage sorting machine. Summary of the invention

[0004] The present invention provides a multi-stage sorting machine for processing rice, which solves the problems raised in the above-mentioned background technology.

[0005] The present invention provides the following technical solutions: a multi-stage sorting machine for grain rice processing, comprising a supporting frame, a conveyor belt assembly sleeved on the inner side of the top of the supporting frame, one side of the conveyor belt assembly is connected to a first power output assembly in a transmission manner, a sorting box is arranged outside the top of the supporting frame, the top of the sorting box is connected to a composite material guide pipe which is in communication with its own space, the top of the sorting box is respectively sleeved with a first sorting filter net, a second sorting filter net, and a third sorting filter net from top to bottom, and the mesh numbers of the first sorting filter net, the second sorting filter net, and the third sorting filter net are increased, and a discharge port is opened at the bottom of the sorting box, one side of the sorting box is sleeved with three discharge pipe fittings, and the three discharge pipe fittings are sequentially located outside the top of the first sorting filter net, outside the top of the second sorting filter net, and outside the top of the third sorting filter net;

[0006] The front and rear ends of the bottom of the sorting box are fixedly connected with an adjusting shaft, one end of the two adjusting shafts is equipped with a bearing seat through a bearing sleeve, and one end of one of the adjusting shafts is transmission-connected to a second power output assembly, and the two bearing seats are respectively mounted on the front and rear end surfaces of the middle part of the supporting frame, and the outer side of the bottom of the sorting box is movably sleeved with a supporting sleeve plate nested on the inner side of the top of the supporting frame, and the two sides of the supporting 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 tube.

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

[0008] Selectedly, the three discharge pipe fittings are composed of a discharge cone tube and a sealing cover connected by external threads on the open port of the discharge cone tube, and the three discharge cone tubes correspond to the first-level sorting space, the second-level sorting space, and the third-level sorting space respectively, thereby meeting the material feeding needs of the three sorting spaces, and four transparent plates are fixedly nested in the front end of the sorting box, and the four transparent plates correspond to the first-level sorting space, the second-level sorting space, the third-level sorting space and the front end space at the bottom of the sorting box, respectively, providing conditions for subsequent operators to directly visually observe the sorting situation.

[0009] The conveyor belt assembly is composed of a conveyor belt and transmission shafts movably connected on both sides of the conveyor belt, and the two transmission shafts are respectively mounted on both sides of the top of the supporting frame through bearings. The first power output assembly is composed of a first bevel gear box and a first brake servo motor transmission-connected to the input end of the first bevel gear box, and a first support seat is fixedly installed between the shell surface of the first brake servo motor and the surface of one side of the supporting frame. The output end of the bevel gear box is transmission-connected to the corresponding transmission shaft end. The conveyor belt assembly and the first power output assembly are used together to meet the needs of automated transportation after raw materials are sorted.

[0010] The second power output assembly is composed of a second bevel gear box and a second brake servo motor which is transmission-connected to the input end of the second bevel gear box; the input end of the second bevel gear box is transmission-connected to one end of the corresponding adjusting shaft; a second support seat is fixedly installed between the shell surface of the second brake servo motor and the middle surface of the supporting frame; the second power output assembly cooperates with the adjusting shaft to apply reciprocating rotational power to the sorting box, thereby moving the raw materials inside the sorting box left and right, thereby increasing the speed of automatic filtering and sorting.

[0011] Preferably, a meshing guide assembly is arranged between the two adjusting shafts, and the meshing guide assembly includes a gear shaft, and the end of the gear shaft is provided with an auxiliary bearing seat fixedly mounted on the middle surface of the supporting frame through a bearing sleeve, and both ends of the gear shaft are meshingly connected with arc-shaped tooth plates, and a linkage plate is fixedly connected between the arc-shaped tooth plates and the corresponding middle surface of the adjusting shaft, and the meshing guide assembly is utilized to improve the stability of the subsequent reciprocating rotation of the sorting box.

[0012] The support sleeve is fixedly mounted on the inner side of the top of the support frame, and the bottom surface of the support sleeve is fitted and connected to the top surface of the conveyor belt assembly. One side of the semi-open ring plate is a conical open structure, which is convenient for collecting the output raw materials.

[0013] Preferably, a sealing plate is mounted on one side of the auxiliary sleeve, and the sealing plate comprises a sealing plate body, the top of the sealing plate body is mounted inside one side of the auxiliary sleeve through a bearing, and the bottom of the sealing plate body is fitly connected to the top surface of the conveyor belt assembly, the bearing end mounted on the top of the sealing plate body passes through the side structure of the auxiliary sleeve and is fixedly connected to an iron block, the surface of the iron block is magnetically connected to an electromagnetic suction cup fixedly installed on the surface of the auxiliary sleeve, and the sealing plate can provide an open internal space of the auxiliary sleeve under different usage requirements, and utilize the conveying effect of the conveyor belt assembly to conveniently collect the sorted raw materials.

[0014] Selected, auxiliary support platforms are installed inside both sides of the support frame, a number of shock-absorbing grooves are opened in the top of the auxiliary support platform, and the auxiliary support platform is used to provide auxiliary support for the collection container used subsequently. The composite material guide pipe is composed of an elastic folding tube and a flange tube and a transition valve tube fixedly connected at both ends of the elastic folding tube. The flange pipe is fixedly installed on the top structure of the sorting box by screws. The composite material guide pipe used can meet the raw material transportation needs while meeting the need to make way for the reciprocating rotation of the sorting box.

[0015] Preferably, electromagnets are arranged in the first-level sorting space, the second-level sorting space and the third-level sorting space, and the three electromagnets are respectively nested in the inner wall on the top side, the inner wall on the middle side and the inner wall on the bottom side of the sorting box, and the magnetic surfaces of the three electromagnets are magnetically connected to a plurality of iron balls. Subsequently, when the filter structure formed by the first sorting filter, the second sorting filter and the third sorting filter is clogged, the multiple iron balls can be released by closing the electromagnets, and then the multiple iron balls can be synchronously reciprocated on the top surface of the corresponding transition structure with the reciprocating rotation of the sorting box, so as to squeeze and impact the rice grains stuck in the filter gap, thereby realizing the clearing of the filter structure in disguised form.

[0016] The present invention has the following beneficial effects:

[0017] 1. The present invention provides a second power output assembly to stably drive the sorting box through the adjusting shaft and the meshing guide assembly, so that the rice raw material put into the sorting box through the composite material guide pipe can be reciprocated and rotated, and the first sorting filter, the second sorting filter and the third sorting filter are coordinated to perform multi-stage sorting and filtering, so as to achieve an automated multi-stage sorting effect in one go, and the rice materials of different sizes at the sorting place can be output in stages by the conveyor belt assembly, so as to create favorable conditions for automated collection and optimize the overall process operation effect.

[0018] 2. The present invention provides an auxiliary material guiding device composed of a supporting sleeve, a semi-open ring plate, an auxiliary sleeve, a negative pressure drainage tube, and a sealing plate. When used in combination with a conveyor belt assembly, it can provide direct conveying and collecting conditions and negative pressure absorption and cleaning conditions for the smallest rice residue raw materials, thereby solving the problems existing in the prior art.

[0019] 3. The present invention forms a clearing structure in the first-stage sorting space, the second-stage sorting space and the third-stage sorting space inside the sorting box by means of three electromagnets and a plurality of iron balls corresponding to each of the three electromagnets. When the filtering structure in any of the sorting spaces is blocked, the corresponding electromagnet releases a plurality of iron balls, and then the plurality of iron balls move synchronously with the reciprocating rotation of the sorting box, and then collide with the rice grains blocked on the surface of the corresponding filtering structure, thereby meeting the automatic clearing requirement. In addition, the clearing structure can also be applied to the screening of metal impurities in rice raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a rear view schematic diagram of the structure of the present invention;

[0022] Figure 3 It is a top view schematic diagram of the structural support frame of the present invention;

[0023] Figure 4 It is a partial cross-sectional schematic diagram of the structural sorting box of the present invention;

[0024] Figure 5 It is a bottom view schematic diagram of the structural support sleeve of the present invention;

[0025] Figure 6 It is an enlarged schematic diagram of the engagement guide assembly of the structure of the present invention;

[0026] Figure 7 The structure of the present invention Figure 2 A magnified schematic diagram of center A.

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

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-7 , a multi-stage sorting machine for grain rice processing, comprising a supporting frame 1, a conveyor belt assembly 2 sleeved on the inner side of the top of the supporting frame 1, one side of the conveyor belt assembly 2 is connected to a first power output assembly 3 in a transmission manner, the conveyor belt assembly 2 is composed of a conveyor belt and transmission shafts movably sleeved on both sides of the conveyor belt, and the two transmission shafts are respectively sleeved on both sides of the top of the supporting frame 1 through bearings, the first power output assembly 3 is composed of a first bevel gear box and a first brake servo motor connected to the input end of the first bevel gear box in a transmission manner, a first support seat is fixedly installed between the housing surface of the first brake servo motor and the surface of one side of the supporting frame 1, the output end of the bevel gear box is connected to the corresponding transmission shaft end in a transmission manner, the conveyor belt assembly 2 and the first power output assembly 3 are used together to meet the demand for automatic transportation after sorting raw materials;

[0030] A sorting box 4 is arranged outside the top of the supporting frame 1, and a composite material guide pipe 5 communicating 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 respectively installed on the top of the sorting box 4 from top to bottom, and 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 a discharge port is opened at the bottom of the sorting box 4. Three discharge pipe fittings 9 are installed on one side of the sorting box 4, and the three discharge pipe fittings 9 are sequentially located outside the top of the first sorting filter screen 6, outside the top of the second sorting filter screen 7, and outside the top of the third sorting filter screen 8;

[0031] The first sorting filter 6 cooperates with the top inner wall of the sorting box 4 to form a first-level sorting space, the bottom of the first sorting filter 6 cooperates with the top of the second sorting filter 7 and the inner wall of the middle part of the sorting box 4 to form a second-level sorting space, the bottom of the second sorting filter 7 cooperates with the bottom of the third sorting filter 8 and the bottom inner wall of the sorting box 4 to form a third-level sorting space, the three discharge pipes 9 are composed of a discharge cone and a sealing cover connected by external threads at the open port of the discharge cone, the three discharge cones correspond to the first-level sorting space, the second-level sorting space, and the third-level sorting space, respectively, thereby meeting the material feeding requirements of the three sorting spaces, the front end of the sorting box 4 is fixedly nested with four transparent plates 20, the four transparent plates 20 correspond to the first-level sorting space, the second-level sorting space, the third-level sorting space and the front end space at the bottom of the sorting box 4, respectively, providing conditions for the subsequent operator to directly visually observe the sorting situation;

[0032] The front and rear ends of the bottom of the sorting box 4 are fixedly connected with an adjusting shaft 10, one end of the two adjusting shafts 10 is provided with a bearing seat through a bearing sleeve, and one end of one of the adjusting shafts 10 is transmission-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 transmission-connected to the input end of the second bevel gear box, the input end of the second bevel gear box is transmission-connected to the corresponding end of the adjusting shaft 10, a second support seat is fixedly installed between the shell surface of the second brake servo motor and the middle surface of the support frame 1, the second power output assembly 14 cooperates with the adjusting shaft 10 to apply reciprocating rotation power to the sorting box 4, thereby moving the raw materials inside the sorting box 4 left and right, thereby increasing the speed of automatic filtering and sorting;

[0033] The two bearing seats are respectively installed on the front and rear end surfaces of the middle part of the support frame 1. The outer side of the bottom of the sorting box 4 is movably sleeved with a support sleeve 11 nested on the inner side of the top of the support frame 1. The two sides of the support sleeve 11 are respectively connected with a semi-open ring plate 12 and an auxiliary sleeve 13. The support sleeve 11 is fixedly sleeved on the inner side of the top of the support frame 1, and the bottom surface of the support sleeve 11 is fitted and connected with the top surface of the conveyor belt assembly 2. One side of the semi-open ring plate 12 is a conical open structure, which is convenient for collecting the output raw materials, and the top of the auxiliary sleeve 13 is fixedly sleeved with a negative pressure drainage tube 21;

[0034] A meshing guide assembly 15 is provided between the two adjusting shafts 10, and the meshing guide assembly 15 includes a gear shaft 151, and the end of the gear shaft 151 is provided with an auxiliary bearing seat fixedly mounted on the middle surface of the support frame 1 through a bearing sleeve, and both ends of the gear shaft 151 are meshedly connected with arc-shaped toothed plates 152, and a linkage plate 153 is fixedly connected between the arc-shaped toothed plates 152 and the corresponding middle surface of the adjusting shaft 10, and the meshing guide assembly 15 is used to improve the stability of the subsequent sorting box 4 during the reciprocating rotation process;

[0035] A sealing plate 16 is sleeved on one side of the auxiliary sleeve 13. The sealing plate 16 includes a sealing plate body 161. The top of the sealing plate body 161 is sleeved inside one side of the auxiliary sleeve 13 through a bearing, and the bottom of the sealing plate body 161 is fitted and connected to the top surface of the conveyor belt assembly 2. The bearing end sleeved on the top of the sealing plate body 161 passes through the side structure of the auxiliary sleeve 13 and is fixedly connected to an iron block 163. The surface of the iron block 163 is magnetically connected to an electromagnetic suction cup 162 fixedly installed on the surface of the auxiliary sleeve 13. The sealing plate 16 can provide an open internal space of the auxiliary sleeve 13 under different usage requirements, and utilize the conveying effect of the conveyor belt assembly 2 to conveniently collect the sorted raw materials.

[0036] Auxiliary support platforms 17 are installed inside both sides of the support frame 1. Several shock-absorbing grooves are opened in the top of the auxiliary support platform 17. The auxiliary support platform 17 is used to provide auxiliary support for the collection container used later. The composite material guide pipe 5 is composed of an elastic folding pipe and a flange pipe and a transition valve pipe fixedly connected at both ends of the elastic folding pipe. The flange pipe is fixedly installed on the top structure of the sorting box 4 by screws. The composite material guide pipe 5 used can meet the need to make way for the reciprocating rotation of the sorting box 4 while meeting the need for raw material transportation;

[0037] Electromagnets 18 are provided in the first-stage sorting space, the second-stage sorting space and the third-stage sorting space. The three electromagnets 18 are respectively nested in the inner wall on the top side, the inner wall on the middle side and the inner wall on the bottom side of the sorting box 4. The magnetic surfaces of the three electromagnets 18 are magnetically connected to a plurality of iron balls 19. When the filter structure formed by the first sorting filter 6, the second sorting filter 7 and the third sorting filter 8 is subsequently clogged, the multiple iron balls 19 can be released by closing the electromagnet 18, and then the multiple iron balls 19 can be synchronously reciprocated on the top surface of the corresponding transition structure with the reciprocating rotation of the sorting box 4, so as to squeeze and impact the rice grains stuck in the filter gap, thereby realizing the clearing of the filter structure in disguised form.

[0038] Working principle:

[0039] Embodiment 1

[0040] The open end of the negative pressure drainage pipe 21 is connected to the existing negative suction equipment, and the composite material guide pipe 5 is connected to the raw material bin, and then the rice raw material to be sorted and processed is transported to the top inner side of the sorting box 4 through the composite material guide pipe 5. After observing that the rice raw material is transported to a certain amount through the transparent plate 20 at the front end of the sorting box 4, 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 second bevel gear box is used for reciprocating output in both directions, and then the sorting box 4 and the composite guide pipe 5 are driven to rotate left and right at a fixed distance through the corresponding adjusting shaft 10, thereby utilizing the 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 6, the second sorting filter 7, and the third sorting filter 8 for filtering and sorting, and then the rice of different sizes is filtered into the first-stage sorting space, the second-stage sorting space, and the third-stage sorting space respectively, and the smallest rice residue flows through the discharge port at the bottom of the sorting box 4 to 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 first bevel gear box is used for reverse output, and then the rice residue falling to the top surface of the middle part of the conveyor belt assembly 2 is transported to the inside of the auxiliary sleeve plate 13, and at the same time, the negative suction device is started, and the rice residue transported by the conveyor belt assembly 2 is automatically cleaned by negative suction through the negative pressure drainage pipe 21;

[0042] After the rice raw material is sorted and filtered inside the sorting box 4 and the conveyor belt assembly 2 transports all the rice residues to the inside of the auxiliary sleeve plate 13 and cleans them by negative suction, the first brake servo motor is temporarily closed, and the sorting box 4 is rotated and adjusted to be inclined toward the semi-open ring plate 12 by 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 discharge pipe 9 corresponding to the first-stage sorting space is twisted, and the rice raw materials collected inside the first-stage sorting space are put on the top surface of one side of the conveyor belt assembly 2, and 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 forwardly outputted through the first bevel gear box, and then the rice raw materials dropped to the top surface of one side of the conveyor belt assembly 2 are moved toward the open port of the semi-open ring plate 12, and the collecting container is placed on the top of the corresponding auxiliary support platform 17 and aligned with the opening on one side of the conveyor belt assembly 2, and then the conveying effect of the conveyor belt assembly 2 is used for automatic collection;

[0043] After the rice is sorted and filtered in the first-level sorting space, follow the above steps, and similarly disassemble the discharge pipe fittings 9 corresponding to the second-level sorting space and the discharge pipe fittings 9 corresponding to the third-level sorting space in turn, and cooperate with the conveyor belt assembly 2 for designated collection. After completion, repeat the operation according to the initial steps.

[0044] Embodiment 2

[0045] The sorting, filtration and collection of rice raw materials are performed according to the steps of the above-mentioned embodiment 1, and another method can be used to collect rice residues during sorting and filtration. Specifically, a collection container is placed on the top of the auxiliary support platform 17 close to the auxiliary sleeve 13 and aligned with the opening on the other side of the conveyor belt assembly 2. Then, during the process of conveying rice residues by the conveyor belt assembly 2, the electromagnetic suction cup 162 inside the sealing plate 16 is closed, and the sealing plate body 161 is turned over to change the sealing plate body 161 from a state perpendicular to the top structure of the auxiliary sleeve 13 to a state parallel to the top structure of the auxiliary sleeve 13. Then, the electromagnetic suction cup 162 is reopened, and the electromagnetic suction cup 162 magnetically limits the iron block 163 linked to the sealing plate body 161, thereby opening the space on one side of the auxiliary sleeve 13 to directly collect the rice residues transported by the conveyor belt assembly 2.

[0046] Embodiment 3

[0047] The sorting, filtering and collection of the rice raw material are performed according to the steps of the above-mentioned embodiment 1. When the first sorting filter 6, the second sorting filter 7 and the third sorting filter 8 that have been used for a long time have too many clogging in the filter gap, the electromagnet 18 in the first-stage sorting space, the electromagnet 18 in the second-stage sorting space and the electromagnet 18 in the third-stage sorting space are closed in turn during the operation interval, and then the multiple iron balls 19 in the first-stage sorting space, the multiple iron balls 19 in the second-stage sorting space and the multiple iron balls 19 in the third-stage sorting space are released;

[0048] Next, the second brake servo motor inside the second power output assembly 14 is started and reciprocated output is performed in forward and reverse directions through the second bevel gear box, and then the sorting box 4 and the composite material guide pipe 5 are driven to rotate left and right at a fixed distance through the corresponding adjustment shaft 10, so that the multiple iron balls 19 inside the first-stage sorting space flow on the top surface of the first sorting filter 6 to hit the blocked rice grains, the multiple iron balls 19 inside the second-stage sorting space flow on the top surface of the second sorting filter 7 to hit the blocked rice grains, and the multiple iron balls 19 inside the third-stage sorting space flow on the top surface of the third sorting filter 8 to hit the blocked rice grains, thereby realizing automatic clearing;

[0049] After the blockage is cleared, the three electromagnets 18 are turned on again, and the three electromagnets 18 magnetically reposition the corresponding iron balls 19.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present invention, the fill pattern is only for distinguishing layers, without any other limitation.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage sorting machine for grain rice processing, comprising a support frame (1), a conveyor belt assembly (2) sleeved on the inner side of the top of the support frame (1), one side of the conveyor belt assembly (2) is transmission-connected to a first power output assembly (3), characterized in that: A sorting box (4) is arranged outside the top of the support frame (1), and the top of the sorting box (4) is connected to a composite material guide pipe (5) which is in communication with the space of the sorting box (4), and the top of the sorting box (4) is respectively provided with a first sorting filter (6), a second sorting filter (7), and a third sorting filter (8) from top to bottom, and the mesh numbers of the first sorting filter (6), the second sorting filter (7), and the third sorting filter (8) are increased in sequence, and a discharge port is provided at the bottom of the sorting box (4), and three discharge pipe fittings (9) are provided on one side of the sorting box (4), and the three discharge pipe fittings (9) are sequentially located outside the top of the first sorting filter (6), outside the top of the second sorting filter (7), and outside the top of the third sorting filter (8); The front and rear ends of the bottom of the sorting box (4) are fixedly connected to an adjusting shaft (10), one end of each of the two adjusting shafts (10) is provided with a bearing seat through a bearing sleeve, and one end of one of the adjusting shafts (10) is drivingly connected to a second power output assembly (14), the two bearing seats are respectively mounted on the front and rear end surfaces of the middle part of the support frame (1), the outer side of the bottom of the sorting box (4) is movably sleeved with a supporting sleeve plate (11) nested on the inner side of the top of the supporting frame (1), the two sides of the supporting sleeve plate (11) are respectively connected to 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 tube (21).

2. A multi-stage sorting machine for rice processing according to claim 1, characterized in that: The first sorting filter (6) cooperates with the top inner wall of the sorting box (4) to form a first-level sorting space; the bottom of the first sorting filter (6) cooperates with the top of the second sorting filter (7) and the inner wall of the middle part of the sorting box (4) to form a second-level sorting space; the bottom of the second sorting filter (7) cooperates with the bottom of the third sorting filter (8) and the bottom inner wall of the sorting box (4) to form a third-level sorting space.

3. A multi-stage sorting machine for grain rice processing according to claim 2, characterized in that: The three discharge pipes (9) are each composed of a discharge cone tube and a sealing cover connected by external threads at an open port of the discharge cone tube. The three discharge cone tubes correspond to a first-level sorting space, a second-level sorting space, and a third-level sorting space, respectively. Four transparent plates (20) are fixedly embedded in the front end of the sorting box (4). The four transparent plates (20) correspond to the first-level sorting space, the second-level sorting space, the third-level sorting space, and the front end space at the bottom of the sorting box (4), respectively.

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

5. The multi-stage separator for rice processing according to claim 1, characterized in that: The second power output assembly (14) is composed of a second bevel gear box and a second brake servo motor which is transmission-connected to the input end of the second bevel gear box; the input end of the second bevel gear box is transmission-connected to one end of the corresponding adjustment shaft (10); and a second support seat is fixedly installed between the housing surface of the second brake servo motor and the middle surface of the support frame (1).

6. The multi-stage separator for rice processing according to claim 1, characterized in that: A meshing guide assembly (15) is provided between the two adjusting shafts (10), the meshing guide assembly (15) comprising a gear shaft (151), the end of the gear shaft (151) being provided with an auxiliary bearing seat fixedly mounted on the middle surface of the supporting frame (1) via a bearing sleeve, both ends of the gear shaft (151) being meshingly connected with arc-shaped toothed plates (152), and a linkage plate (153) being fixedly connected between the arc-shaped toothed plates (152) and the middle surface of the corresponding adjusting shaft (10).

7. The multi-stage separator for rice processing according to claim 1, characterized in that: The support sleeve (11) is fixedly sleeved on the inner side of the top of the support frame (1), and the bottom surface of the support sleeve (11) is fitted and connected to the top surface of the conveyor belt assembly (2), and one side of the semi-open ring plate (12) is a conical open structure.

8. The multi-stage separator for rice processing according to claim 1, characterized in that: A sealing plate (16) is sleeved on one side of the auxiliary sleeve (13), and the sealing plate (16) comprises a sealing plate body (161). The top of the sealing plate body (161) is sleeved inside one side of the auxiliary sleeve (13) through a bearing, and the bottom of the sealing plate body (161) is fitted and connected to the top surface of the conveyor belt assembly (2). The bearing end sleeved on the top of the sealing plate body (161) passes through the side structure of the auxiliary sleeve (13) and is fixedly connected to an iron block (163). The surface of the iron block (163) is magnetically connected to an electromagnetic suction cup (162) fixedly installed on the surface of the auxiliary sleeve (13).

9. The multi-stage separator for rice processing according to claim 1, characterized in that: Auxiliary support platforms (17) are mounted inside both sides of the support frame (1), and a plurality of shock-absorbing grooves are provided in the top of the auxiliary support platform (17). The composite material guide pipe (5) is composed of an elastic folding pipe and a flange pipe and a transition valve pipe respectively fixedly connected at both ends of the elastic folding pipe. The flange pipe is fixedly mounted on the top structure of the sorting box (4) by screws.

10. The multi-stage separator for rice processing according to claim 2, characterized in that: Electromagnets (18) are arranged in the first-stage sorting space, the second-stage sorting space and the third-stage sorting space. The three electromagnets (18) are respectively embedded in the inner wall on the top side, the inner wall on the middle side and the inner wall on the bottom side of the sorting box (4). The magnetic surfaces of the three electromagnets (18) are magnetically connected to a plurality of iron balls (19).

Images