CN216189402U - Screening and grading device for rice processing - Google Patents
Screening and grading device for rice processing Download PDFInfo
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- CN216189402U CN216189402U CN202122337397.1U CN202122337397U CN216189402U CN 216189402 U CN216189402 U CN 216189402U CN 202122337397 U CN202122337397 U CN 202122337397U CN 216189402 U CN216189402 U CN 216189402U
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Abstract
The utility model provides a screening and grading device for rice processing, which comprises a screening box, a feeding hopper, a conveyor, a first driving mechanism, sieve plates, an electric push rod and a second driving mechanism, wherein the feeding hopper is arranged at the top of the screening box and used for feeding materials into the screening box in a fixed amount, the conveyor is arranged at the upper end in the screening box and used for conveying the rice fed by the feeding hopper to one end for feeding materials, two groups of first driving mechanisms are symmetrically arranged at two sides of the conveyor and used for driving the conveyor to move for feeding materials, four horizontal sieve plates are sequentially arranged below the conveyor, one end of each sieve plate is arranged as a driving end, the other end of each sieve plate is arranged as a discharging end, the bottom of each sieve plate is rotatably supported by a first rotating shaft and a second rotating shaft which are transversely arranged, two ends of the first rotating shaft and the second rotating shaft are rotatably supported by side walls of the corresponding screening box, and the second rotating shaft positioned at the discharging end of each sieve plate is rotatably connected and supported by the electric push rod. The utility model has the advantages of high screening and grading speed, simple screening process, high efficiency and good stability.
Description
Technical Field
The utility model relates to the technical field of rice processing equipment, in particular to a screening and grading device for rice processing.
Background
The rice grading is an important step in the rice processing process, and the rice grading mainly comprises the steps of grading and finishing finished rice, extracting broken rice exceeding requirements, and grading according to different sizes of the rice. At present, a machine used for rice classification is a classifying screen which mainly comprises a linear vibrating screen, a fine vibrating screen and a flat-turning classifying screen, wherein the flat-turning classifying screen is common equipment for separating rice in a factory. The flat-turning classifying screen filters the rice through screens with filtering holes of different sizes by utilizing the difference between the whole rice and the broken rice of the rice and the difference between the thickness of rice grains to obtain the rice with different integrity and sizes so as to realize the classification of the rice. The prior art has the following problems: during the rotation process of the horizontal rotation type rice grading sieve, part of rice grains can be thrown out from the unsealed rice outlet due to the centrifugal force, so that the rice grading is incomplete; the screen cloth among the flat rotation formula rice classifying screen does not fix completely, and when the rice falls, easy because of the uneven screen cloth slope that makes of atress, cause the rice to just get into next layer without filtering to screening process vibration power is too big, additionally produces the broken rice rate, and the screening is long, so await the solution urgently.
SUMMERY OF THE UTILITY MODEL
The utility model provides a screening and grading device for rice processing, and aims to solve the problems of poor stability, excessive screening force, additional broken rice rate, poor screening effect, long screening time and the like in the existing rice grading and screening process.
The utility model is realized by the following technical scheme:
a screening and grading device for rice processing comprises a screening box, a feeding hopper, a conveyor, a first driving mechanism, sieve plates, an electric push rod and a second driving mechanism, wherein the feeding hopper is arranged at the top of the screening box and used for quantitatively feeding rice into the screening box, the conveyor is arranged at the upper end in the screening box and used for conveying the rice fed by the feeding hopper to one end for feeding, two groups of first driving mechanisms are symmetrically arranged at two sides of the conveyor and used for driving the conveyor to move for feeding, four horizontal sieve plates are sequentially arranged below the conveyor, one end of each sieve plate is a driving end, the other end of each sieve plate is a discharging end, the bottom of each sieve plate is rotatably supported by a first rotating shaft and a second rotating shaft which are transversely arranged, the two ends of the first rotating shaft and the two ends of the rotating shaft are rotatably supported by the side walls of the screening box correspondingly, and the second rotating shaft at the discharging end of each sieve plate is rotatably connected and supported by the electric push rod, the discharge end of each sieve plate penetrates through a discharge port suspension arranged on the corresponding side wall of the screening box, and the driving end of each sieve plate can drive the sieve plates to reciprocate in the horizontal direction through a driving mechanism II.
Further, the conveyor comprises a driving roll shaft, a driven roll shaft, a conveyor belt, a first motor, a first speed reducer and a conveying table; the conveying table is horizontally arranged, a driving roller shaft and a driven roller shaft are transversely arranged at two ends of the upper surface of the conveying table and are connected and driven through a conveying belt, a first motor and a first speed reducer are arranged on the side wall of the conveying table, corresponding to one end of the driving roller shaft, an output shaft of the first motor is connected with an input end of the first speed reducer, an output end of the first speed reducer is connected with one end of the driving roller shaft, the first motor drives the first driving roller shaft to rotate through a driving speed reducer, and the first driving roller shaft rotates to drive the driven roller shaft to synchronously rotate through the conveying belt.
Further, the first driving mechanism comprises a second motor, a second speed reducer, a lead screw and a nut; the two screw rods are symmetrically arranged on two sides of the conveying table, two ends of each screw rod are rotatably supported through two corresponding side walls of the screening box, two nuts are symmetrically arranged on the two screw rods and are respectively connected and fixed with the side walls of the conveying table, each screw rod penetrates out of the corresponding side wall of the screening box and is fixedly provided with a second motor and a second speed reducer, an output shaft of the second motor is connected with an input end of the second speed reducer, an output end of the second speed reducer is connected with the screw rods, the second motor drives the second speed reducer to drive the screw rods to rotate, and the screw rods rotatably drive the nuts to drive the conveying table to move.
Further, the driving mechanism II comprises a motor III, a speed reducer III, a connecting shaft, a connecting rod I, a connecting rod II, a guide rod and a mounting seat; the mounting seat is fixed on the inner side wall of the screening box, a motor III and a speed reducer III are fixed on the mounting seat, the output shaft of the motor III is connected with the input end of the speed reducer III, the output end of the speed reducer III is connected with one end of the connecting shaft, the other end of the connecting shaft is vertically provided with a first connecting rod, one end of the first connecting rod is vertically connected and fixed with the connecting shaft, the other end of the first connecting rod is rotationally connected with one end of the second connecting rod through a rotating shaft, the other end of the second connecting rod is rotatably connected with one end of the guide rod through a second rotating shaft, the other end of the guide rod is hinged with the sieve plate, the third motor drives the third speed reducer to drive the connecting shaft to rotate, the connecting shaft rotates to drive the first connecting rod to rotate, the first connecting rod rotates to drive one end of the second connecting rod to swing up and down, the other end of the second connecting rod drives the guide rod to reciprocate, and the guide rod drives the sieve plate to reciprocate and horizontally move to sieve materials.
Furthermore, the telescopic end of the electric push rod is hinged with the rotating shaft I at the bottom of the discharging end of the sieve plate.
Furthermore, the discharge end of each sieve plate penetrates through the lower part of the suspension end of the discharge port arranged on the corresponding side wall of the screening box, and a discharge bearing plate is arranged below the suspension end.
Furthermore, the four sieve plates are a first sieve plate, a second sieve plate, a third sieve plate and a fourth sieve plate from top to bottom in sequence; the diameter of a sieve pore of the first sieve plate is 3.2 mm; the diameter of a sieve pore of the second sieve plate is 2.8 mm; the diameter of a sieve pore of the third sieve plate is 2.4 mm; the diameter of the sieve hole of the fourth sieve plate is 2.0 mm.
The electric push rod, the first motor, the second motor and the third motor are controlled by a control system.
The utility model has the beneficial effects that: the rice is quantitatively conveyed to the conveyor through the feeding hopper at the upper end in the screening box, then the conveyor automatically conveys and distributes the rice to the sieve plate, the conveyor is driven by the first driving mechanism to uniformly distribute the rice on the sieve plate, the sieve plate can complete one-time screening only by driving the second driving mechanism to reciprocate for a plurality of times, the screening and grading speed is high, meanwhile, the electric push rod is adopted to drive the discharging end of the sieve plate to downwards incline for discharging, the discharging speed is high, the screening process is simple and efficient, and the stability is good.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention.
FIG. 2 is a partially enlarged view of the position I of FIG. 1 according to the present invention.
FIG. 3 is a schematic enlarged view of the position II in FIG. 1 according to the present invention.
FIG. 4 is a partially enlarged view of the position III in FIG. 1 according to the present invention.
Reference numerals:
1-screening box, 11-discharge port;
2-a feed hopper;
3-a conveyor, 31-a driving roll shaft, 32-a driven roll shaft, 33-a conveyor belt, 34-a motor I, 35-a speed reducer I, 36-a conveying table;
4-a first driving mechanism, 41-a second motor, 42-a second speed reducer, 43-a screw rod and 44-a nut;
5-screen deck, 51-drive end, 52-discharge end, 53-first screen deck, 54-second screen deck, 55-third screen deck, 56-fourth screen deck;
6-electric push rod, 61-fixed end, 62-telescopic end;
7-a second driving mechanism, 71-a third motor, 72-a third speed reducer, 73-a connecting shaft, 74-a first connecting rod, 75-a second connecting rod, 76-a guide rod and 77-a mounting seat;
8-rotating shaft I, 81-rotating shaft II;
9-unloading receiving plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
Referring to fig. 1 to 4, a rice processing screening and grading device includes a screening box 1, and further includes a feeding hopper 2, a conveyor 3, a first driving mechanism 4, a sieve plate 5, an electric push rod 6, and a second driving mechanism 7, wherein the feeding hopper 2 is disposed at the top of the screening box 1 for quantitatively feeding the rice fed by the feeding hopper 1, the conveyor 3 is disposed at the upper end of the screening box 1 for conveying the rice fed by the feeding hopper 2 to one end for feeding, two sets of first driving mechanisms 4 are symmetrically disposed at two sides of the conveyor 3 for driving the conveyor 3 to movably feed, four horizontal sieve plates 5 are sequentially disposed below the conveyor 3, one end of each sieve plate 5 is set as a driving end 51, the other end is set as a discharging end 52, the bottom of each sieve plate 5 is rotatably supported by a first rotating shaft 8 and a second rotating shaft 81 which are transversely disposed, and the first rotating shaft 8 and the second rotating shaft 81 are rotatably supported by the first rotating shaft 8 and the second rotating shaft, Two 81 both ends of pivot are all through corresponding screening case 1 lateral wall rotation support is located every 5 discharge end 52 of sieve two 81 of pivot are through 6 rotation joint supports of electric putter, every 5 discharge end 52 of sieve passes the discharge gate suspension that the corresponding lateral wall of screening case set up, every 5 drive end 51 of sieve all can be driven through actuating mechanism two 7 and sieve the material along horizontal direction reciprocating motion.
The conveyor 3 comprises a driving roller shaft 31, a driven roller shaft 32, a conveyor belt 33, a first motor 34, a first speed reducer 35 and a conveying table 36; the conveying table 36 is horizontally arranged, a driving roller shaft 31 and a driven roller shaft 32 are transversely arranged at two ends of the upper surface of the conveying table 36, the driving roller shaft 31 and the driven roller shaft 32 are connected and driven through a conveying belt 33, a first motor 34 and a first speed reducer 35 are arranged on the side wall of the conveying table 36 corresponding to one end of the driving roller shaft 31, an output shaft of the first motor 34 is connected with an input end of the first speed reducer 35, an output end of the first speed reducer 35 is connected with one end of the driving roller shaft 31, the first motor 34 drives the first speed reducer 35 to drive the driving roller shaft 31 to rotate, and the driving roller shaft 31 rotates to drive the driven roller shaft 32 to synchronously rotate through the conveying belt 33, which is shown in attached figures 1 and 2.
The driving mechanism I4 comprises a motor II 41, a speed reducer II 42, a lead screw 43 and a nut 44; the two lead screws 43 are symmetrically arranged on two sides of the conveying table 36, two ends of each lead screw 43 are rotatably supported by two corresponding side walls of the screening box 1, two nuts 44 are symmetrically arranged on the two lead screws 43, the two nuts 44 are respectively connected and fixed with the side walls of the conveying table 36, a second motor 41 and a second speed reducer 42 are fixed on the side wall of each lead screw 43, which penetrates out of the screening box 1, an output shaft of the second motor 41 is connected with an input end of the second speed reducer 42, an output end of the second speed reducer 42 is connected with the lead screw 43, the second motor 41 drives the second speed reducer 42 to drive the lead screw 43 to rotate, and the lead screw 43 drives the nut 44 to drive the conveying table 36 to move by rotation, which is shown in fig. 1 and 2.
The second driving mechanism 7 comprises a third motor 71, a third speed reducer 72, a connecting shaft 73, a first connecting rod 74, a second connecting rod 75, a guide rod 76 and a mounting seat 77; the mounting seat 77 is fixed on the inner side wall of the screening box 1, the motor three 71 and the speed reducer three 72 are fixed on the mounting seat 77, the output shaft of the motor three 71 is connected with the input end of the speed reducer three 72, the output end of the speed reducer three 72 is connected with one end of the connecting shaft 73, the other end of the connecting shaft 73 is vertically provided with a connecting rod one 74, one end of the connecting rod one 74 is vertically connected and fixed with the connecting shaft 73, the other end of the connecting rod one 74 is rotationally connected with one end of the connecting rod two 75 through a rotating shaft, the other end of the connecting rod two 75 is rotationally connected with one end of the guide rod 76 through a rotating shaft two, the other end of the guide rod 76 is hinged with the screen plate 5, the motor three 71 drives the speed reducer three 72 to drive the connecting shaft 73 to rotate, the connecting shaft 73 rotates to drive the connecting rod one 74 to rotate, and the connecting rod one 74 rotates to drive one end of the connecting rod two 75 to swing up and down, the other end of the second connecting rod 75 drives the guide rod 76 to reciprocate, and the guide rod 76 drives the sieve plate 5 to reciprocate and horizontally move to sieve materials, which is shown in the attached figures 1, 2 and 3.
The electric push rod 6 is vertically arranged at the bottom of the discharging end 52 of the sieve plate 5, a fixed end 61 of the electric push rod 6 is fixedly connected with the side wall of the screening box 1, and a telescopic end 62 of the electric push rod 6 is hinged with the first rotating shaft 8 at the bottom of the discharging end 52 of the sieve plate 5, as shown in fig. 1 and 4.
The discharge end 52 of each screen plate 5 penetrates through the screening box 1 and is provided with a discharge receiving plate 9 below the suspension end of the discharge port 11 arranged on the corresponding side wall, see figure 1.
The four sieve plates 5 are a first sieve plate 53, a second sieve plate 54, a third sieve plate 55 and a fourth sieve plate 56 from top to bottom in sequence; the diameter of the sieve pore of the first sieve plate 53 is 3.2 mm; the diameter of the sieve hole of the second sieve plate 54 is 2.8 mm; the diameter of the sieve pore of the third sieve plate 55 is 2.4 mm; the fourth screen deck 56 has a mesh diameter of 2.0mm, see fig. 1.
The electric push rod 6, the first motor 34, the second motor 41 and the third motor 71 are controlled by a control system.
The working principle is as follows:
in the using process, firstly, the control system controls to open the feed hopper 2 for quantitative feeding, the material falls onto a conveyor belt 33 of a conveyor 3, a first motor 34 drives a first speed reducer 35 to drive a driving roller shaft 31 to rotate, the driving roller shaft 31 rotates to drive a driven roller shaft 32 to synchronously rotate through the conveyor belt 33, the conveyor belt 33 slowly moves to rotate and unload the rice, a second motor 41 drives a second speed reducer 42 to drive a lead screw 43 to rotate, the lead screw 43 rotates to drive a nut 44 to move to drive a conveying platform 36 to move, the rice unloaded from the conveyor belt 33 is uniformly moved and distributed on a first sieve plate 53, when the upper surface of the first sieve plate 53 is fully distributed with the rice, a third motor 72 drives a third speed reducer 72 to drive a connecting shaft 73 to rotate, the connecting shaft 73 drives a first connecting rod 74 to rotate, the first connecting rod 74 drives a second connecting rod 75 to swing up and down, the second connecting rod 75 swings up and down to drive a guide rod 76 to horizontally reciprocate, the guide bar 76 drives the first sieve plate 53 to reciprocate and screen the rice, the rice sieved by the first sieve plate 53 passes through the second sieve plate 54, the third sieve plate 55 and the fourth sieve plate 56 in sequence and is screened and classified, the remaining broken rice is collected independently, the first sieve plate 53, the second sieve plate 54, the third sieve plate 55 and the fourth sieve plate 56 are used for screening and classifying the rice, and the rice is respectively discharged through the corresponding electric push rod 6 to correspond to the discharging end 52 of the sieve plate 5 so as to be guided into the corresponding discharging bearing plate 9 for collection.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a rice processing is with screening grading plant, includes screening case (1), its characterized in that: still include feeder hopper (2), conveyer (3), actuating mechanism (4), sieve (5), electric putter (6), actuating mechanism two (7), feeder hopper (2) set up screening case (1) top be used for to the material is thrown to the internal ration of screening case (1), conveyer (3) set up in screening case (1) upper end be used for with the rice that feeder hopper (2) put into is carried to one end and is thrown the material, conveyer (3) bilateral symmetry sets up two sets of actuating mechanism (4) and is used for the drive conveyer (3) remove the material of throwing, conveyer (3) below sets gradually four horizontally sieve (5), every sieve (5) one end sets up to drive end (51), and the other end sets up to discharge end (52), every all through the pivot one (8) that transversely set up in sieve (5) bottom, Pivot two (81) rotate to be supported, pivot one (8), pivot two (81) both ends are all through corresponding screening case (1) lateral wall rotates to be supported, is located every sieve (5) discharge end (52) pivot two (81) rotate to be connected the support through electric putter (6), every discharge end (52) of sieve (5) are passed the discharge gate suspension that the screening case corresponds the lateral wall setting, every drive end (51) of sieve (5) all can be through actuating mechanism two (7) drives along horizontal direction reciprocating motion sieve material.
2. The screening and grading device for rice processing according to claim 1, wherein: the conveyor (3) comprises a driving roller shaft (31), a driven roller shaft (32), a conveyor belt (33), a first motor (34), a first speed reducer (35) and a conveying table (36); carry platform (36) horizontal setting, both ends transversely set up drive roll axle (31), driven roll axle (32) above carrying platform (36), drive roll axle (31), driven roll axle (32) pass through conveyer belt (33) and connect the transmission, drive roll axle (31) one end corresponds carry platform (36) lateral wall to set up motor (34), speed reducer (35), the output shaft of motor (34) with the input of speed reducer (35) is connected, the output of speed reducer (35) with drive roll axle (31) one end is connected, motor (34) drive speed reducer (35) drive roll axle (31) one rotates, drive roll axle (31) one rotates and drives driven roll axle (32) synchronous rotation through conveyer belt (33).
3. The screening and grading device for rice processing according to claim 1, wherein: the driving mechanism I (4) comprises a motor II (41), a speed reducer II (42), a lead screw (43) and a nut (44); the two lead screws (43) are symmetrically arranged on two sides of the conveying table (36), two ends of each lead screw (43) are rotatably supported through two corresponding side walls of the screening box (1), two nuts (44) are symmetrically arranged on the two lead screws (43), the two nuts (44) are respectively connected and fixed with the side walls of the conveying table (36), each lead screw (43) penetrates out of the corresponding side wall of the screening box (1) and is fixedly provided with a second motor (41) and a second speed reducer (42), an output shaft of the second motor (41) is connected with an input end of the second speed reducer (42), an output end of the second speed reducer (42) is connected with the lead screw (43), the second motor (41) drives the second speed reducer (42) to drive the lead screws (43) to rotate, and the lead screws (43) rotate to drive the nuts (44) to drive the conveying table (36) to move.
4. The screening and grading device for rice processing according to claim 3, wherein: the second driving mechanism (7) comprises a third motor (71), a third speed reducer (72), a connecting shaft (73), a first connecting rod (74), a second connecting rod (75), a guide rod (76) and a mounting seat (77); the screening box is characterized in that the mounting seat (77) is fixed on the inner side wall of the screening box (1), a motor III (71) and a speed reducer III (72) are fixed on the mounting seat (77), an output shaft of the motor III (71) is connected with an input end of the speed reducer III (72), an output end of the speed reducer III (72) is connected with one end of the connecting shaft (73), a connecting rod I (74) is vertically arranged at the other end of the connecting shaft (73), one end of the connecting rod I (74) is vertically connected and fixed with the connecting shaft (73), the other end of the connecting rod I (75) is rotationally connected with one end of the connecting rod II (75) through a rotating shaft, the other end of the connecting rod II (75) is rotationally connected with one end of the guide rod (76) through a rotating shaft II, the other end of the guide rod (76) is hinged with the screening plate (5), and the motor III (71) drives the speed reducer III (72) to drive the connecting shaft (73) to rotate, the connecting shaft (73) rotates and rotates to drive the first connecting rod (74) to rotate, the first connecting rod (74) rotates to drive one end of the second connecting rod (75) to swing up and down, the other end of the second connecting rod (75) drives the guide rod (76) to reciprocate, and the guide rod (76) drives the sieve plate (5) to reciprocate and horizontally move to sieve materials.
5. The screening and grading device for rice processing according to claim 1, wherein: the vertical setting of electric putter (6) is in discharge end (52) bottom of sieve (5), stiff end (61) of electric putter (6) with screening case (1) lateral wall is connected fixedly, the flexible end (62) of electric putter (6) with discharge end (52) bottom of sieve (5) pivot (8) are articulated to be connected.
6. The screening and grading device for rice processing according to claim 1, wherein: and a discharging bearing plate (9) is arranged below the suspension end (52) of each sieve plate (5) which penetrates through the discharge port (11) arranged on the corresponding side wall of the screening box (1).
7. The screening and grading device for rice processing according to claim 1, wherein: the four sieve plates (5) are a first sieve plate (53), a second sieve plate (54), a third sieve plate (55) and a fourth sieve plate (56) from top to bottom in sequence; the diameter of the sieve hole of the first sieve plate (53) is 3.2 mm; the diameter of the sieve hole of the second sieve plate (54) is 2.8 mm; the diameter of the sieve pore of the third sieve plate (55) is 2.4 mm; the diameter of the sieve hole of the fourth sieve plate (56) is 2.0 mm.
8. The screening and grading device for rice processing according to claim 1, wherein: the electric push rod (6), the first motor (34), the second motor (41) and the third motor (71) are controlled by a control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122337397.1U CN216189402U (en) | 2021-09-26 | 2021-09-26 | Screening and grading device for rice processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122337397.1U CN216189402U (en) | 2021-09-26 | 2021-09-26 | Screening and grading device for rice processing |
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| Publication Number | Publication Date |
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| CN216189402U true CN216189402U (en) | 2022-04-05 |
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| CN202122337397.1U Active CN216189402U (en) | 2021-09-26 | 2021-09-26 | Screening and grading device for rice processing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115837354A (en) * | 2023-02-16 | 2023-03-24 | 长春福德机械制造有限公司 | Peanut screening machine |
-
2021
- 2021-09-26 CN CN202122337397.1U patent/CN216189402U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115837354A (en) * | 2023-02-16 | 2023-03-24 | 长春福德机械制造有限公司 | Peanut screening machine |
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