Gravity husked rice separator for rice processing
By designing a gravity gravel separator including a feed hopper, a feeding mechanism and a feeding adjustment mechanism, the problem of inability to realize batch feeding and adjust batch feeding volume according to actual conditions in the prior art is solved, and the problem of batch feeding volume cannot be realized in the prior art, so as to achieve the problem of batch feeding in accordance with actual conditions. Efficient granular separation effect.
Patent Information
- Application Number
- CN202420952626.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The existing gravel separator cannot achieve batch cutting and timely adjust the batch cutting volume according to the actual situation of the rice and brown rice mixture, resulting in poor separation effect.
A gravity gravel gravel separator including a feed hopper, a feeding mechanism and a feeding adjustment mechanism is designed. The material separation mechanism drives the material separation roller to rotate through the material separation motor, and the rice and brown rice mixture enters the body in batches, and the material separation adjustment mechanism adjusts the size of the storage chamber between the adjacent two material separation plates on the material separation roller to achieve the Adjustment of the amount of mixture.
The batch feeding of rice and brown rice mixture is achieved and the batch feeding amount is adjusted according to actual conditions, which improves the efficiency and effect of grain separation.
Smart Images
Figure CN222447303U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rice processing equipment, in particular to a gravity rice-rough separator for rice processing. Background Art
[0002] Gravity rice-rough separator is a kind of equipment which utilizes the difference in specific gravity, particle size and surface friction coefficient between rice and rough grains, and uses the function of bidirectional tilting and reciprocating working plates to increase automatic grading to separate rice and rough grains.
[0003] However, the existing rice-rough separator does not have the function of feeding in batches. Too much rice enters the device at once, which greatly reduces the working efficiency and the quality of rice, and has low practicality.
[0004] The utility model patent with authorization announcement number CN21528523U discloses a double-body gravity brown rice separator, including a box body, an installation box and a feed hopper. The feed hopper is fixedly installed on the top of the box body, and a dividing device is provided between the feed hopper and the box body. The dividing device drives a rotating rod to rotate through a driving device, and the rotating rod drives a dividing plate to rotate to achieve the effect of batch unloading. Under the action of a dividing block and a stop block, the dividing plate prompts brown rice and paddy to enter two frames at the same time.
[0005] However, the material dividing device can only realize a quantitative batch feeding operation, and cannot timely adjust the batch feeding amount according to the actual situation of the mixture of paddy and brown rice, resulting in that the gravity rice-brown separator cannot achieve the best separation effect when separating the mixture of paddy and brown rice, which urgently needs to be improved. Utility Model Content
[0006] The utility model aims to provide a rice processing gravity rice-rough separator, which effectively solves the problem that the existing rice-rough separator cannot feed in batches and cannot timely adjust the amount of feeding in batches according to the actual situation of the mixture of paddy and brown rice.
[0007] The above technical objectives of the utility model are achieved through the following technical solutions:
[0008] A rice processing gravity rice-rough separator comprises a machine body and a feeding mechanism arranged above the machine body, the feeding mechanism comprises a feeding hopper, a dividing mechanism for feeding into a feeding port of the machine body is arranged in the feeding hopper, the dividing mechanism comprises a dividing mechanism for dividing the feeding hopper into a storage chamber and a discharge chamber, the bottom of the storage chamber is sealed, the discharge chamber is communicated with the inner chamber of the machine body, a horizontal dividing roller is arranged in the dividing mechanism, both ends of the dividing roller are respectively rotatably connected to the discharge chamber, one end of the dividing roller is connected to a dividing motor fixed outside the discharge chamber, a plurality of radially extending mounting grooves are evenly distributed around the dividing roller, each mounting groove is provided with a dividing plate, both ends of the dividing plate are respectively in contact with both sides of the discharge chamber, and one side of the dividing plate is connected to a dividing adjustment mechanism on one side of the discharge chamber.
[0009] By adopting the above technical scheme, the mixture of husked brown rice and residual rice grains is put into the storage chamber of the feed hopper, and then the dividing roller is driven to rotate by the dividing motor, so that the rice and brown rice mixture in the storage chamber of the feed hopper enters the accommodating chamber formed between two adjacent dividing plates on the dividing roller in turn, and as the dividing roller continues to rotate, the rice grains and brown rice mixture enters the discharge chamber from the storage chamber one by one and enters the machine body through the opening at the bottom of the discharge chamber in turn for rice-brown separation, thereby achieving the effect of the rice grains and brown rice mixture entering the machine body in batches, which can effectively prevent the rice grains and brown rice from entering the machine body at one time. Too much will affect the work efficiency and the effect of rice-brown rice separation. The size of the accommodating cavity formed between two adjacent dividing plates on the dividing roller can be adjusted through the dividing adjustment mechanism. By adjusting the size of the accommodating cavity formed between two adjacent dividing plates on the dividing roller, the amount of each portion of rice and brown rice mixture entering the machine body can be adjusted, thereby realizing a variety of different quantitative batch feeding operations, that is, the amount of batch feeding can be adjusted in time according to the actual situation of the rice and brown rice mixture, so that the gravity rice-brown rice separator always maintains the best separation effect when separating the rice and brown rice mixture.
[0010] The utility model is further configured as follows: the dividing mechanism includes a dividing plate 1 and a dividing plate 2 respectively located at the upper and lower ends of a dividing roller, an arc plate 1 is fixedly provided at one end of the dividing plate 1 close to the dividing plate 2, and an arc plate 2 is fixedly provided at one end of the dividing plate 2 close to the dividing plate 1, the dividing roller is located between the arc plate 1 and the arc plate 2, the dividing plates on the dividing roller respectively opposite to the arc plate 1 and the arc plate 2 respectively abut against the inner arc surfaces of the arc plate 1 and the arc plate 2, the front and rear sides of the dividing plate 1 and the dividing plate 2 respectively slide in cooperation with the longitudinal slide grooves on the front and rear side walls of the feed hopper, the upper end of the dividing plate 1 is connected to the top of the longitudinal slide groove by a reset spring 1, and the lower end of the dividing plate 2 is connected to the bottom of the longitudinal slide groove by a reset spring 2.
[0011] By adopting the above technical scheme, the dividing mechanism divides the feed hopper into a storage chamber and a discharge chamber through the dividing plate 1 and the dividing plate 2, and the dividing plate 1 and the dividing plate 2 are respectively abutted against the dividing plate on the dividing roller through the arc plate 1 and the arc plate 2, thereby further realizing the isolation between the storage chamber and the discharge chamber, and when the size of the accommodating chamber formed between two adjacent dividing plates on the dividing roller is adjusted, when the dividing plate slides radially along the mounting groove on the dividing roller, the diameter of the circle where the dividing plate is located becomes larger or smaller, so that the arc plate 1 and the arc plate 2 respectively abutting against the dividing plate move away from or approach each other, and the dividing plate 1 and the dividing plate 2 overcome the elastic force of the return spring 1 and the return spring 2 under the action of the arc plate 1 and the arc plate 2 respectively and slide along the longitudinal slide groove respectively, thereby ensuring that when the size of the accommodating chamber formed between two adjacent dividing plates on the dividing roller is adjusted, the storage chamber and the discharge chamber always remain relatively isolated.
[0012] The utility model is further configured as follows: the material distribution adjustment mechanism includes a material distribution adjustment turntable coaxially arranged with the material distribution roller, and a sliding pin is fixedly provided at the end of each material distribution plate opposite to the material distribution adjustment turntable, and each sliding pin is respectively slidably matched with a plurality of arc grooves on the material distribution adjustment turntable, and each arc groove is arranged in a circular array on the material distribution adjustment turntable, and the distance from each point on the arc trajectory where each arc groove is located to the center of the material distribution adjustment turntable decreases or increases successively, and the material distribution adjustment turntable is connected to the material distribution adjustment drive mechanism.
[0013] By adopting the above technical scheme, when it is necessary to adjust the size of the accommodating cavity formed between two adjacent dividing plates on the dividing roller, the dividing adjustment drive mechanism drives the dividing adjustment dial to rotate relative to the dividing roller, so that the sliding pins fixedly connected to the dividing plates on the dividing roller slide along the arc grooves on the dividing adjustment dial respectively, so that each dividing plate slides radially along the mounting grooves on the dividing roller respectively until the size of the accommodating cavity formed between two adjacent dividing plates on the dividing roller reaches an appropriate standard, thereby realizing timely adjustment of the batch discharge amount according to the actual situation of the mixture of rice and brown rice, and the adjustment process is simple and easy to operate.
[0014] The utility model is further configured as follows: the material dividing adjustment turntable is rotatably connected to the material dividing roller, the material dividing adjustment driving mechanism includes gear one fixedly connected to the material dividing roller and gear two rotatably connected to the material dividing adjustment turntable, the gear one is meshed with gear two, the gear two is meshed with a rack on the material dividing adjustment turntable, the rack is slidably matched with an adjustment groove on the material dividing adjustment turntable, and one end of the rack is fixedly connected to the telescopic shaft of an adjustment cylinder fixed on the material dividing adjustment turntable.
[0015] By adopting the above technical scheme, when it is necessary to adjust the size of the accommodating cavity formed between two adjacent material dividing plates on the material dividing roller, the control adjusting cylinder is started to extend or retract the telescopic shaft of the adjusting cylinder to a set length, and the adjusting cylinder drives the rack to slide along the adjusting groove when the telescopic shaft is extended and retracted, and when the rack slides, the gear 2 is driven to rotate relative to the material dividing adjusting turntable, and when the gear 2 rotates relative to the material dividing adjusting turntable, the gear 1 is driven to rotate relative to the material dividing adjusting turntable, and when the gear 1 rotates relative to the material dividing adjusting turntable, it drives the material dividing roller fixedly connected to it to rotate relative to the material dividing adjusting turntable, and the material dividing roller is driven to rotate relative to the material dividing adjusting turntable. When the material roller rotates relative to the material dividing adjustment dial, it drives each material dividing plate to rotate synchronously relative to the material dividing adjustment dial. When each material dividing plate rotates synchronously relative to the material dividing adjustment dial, it drives the sliding pins fixedly connected to each material dividing plate to slide along the arc groove on the material dividing adjustment dial, so that each material dividing plate slides radially along the mounting grooves on the material dividing roller until the size of the accommodating cavity formed between two adjacent material dividing plates on the material dividing roller reaches an appropriate standard. Therefore, the amount of batch feeding can be adjusted in time according to the actual situation of the mixture of rice and brown rice. The adjustment process is simple and the operation is convenient.
[0016] The utility model is further configured as follows: the material dividing mechanism also includes a V-shaped guide hopper arranged at the bottom opening of the discharge cavity and an inverted V-shaped material dividing plate arranged in the machine body, the top of the inverted V-shaped material dividing plate is located in the middle of the bottom opening of the V-shaped guide hopper, and the lower ends of both sides of the inverted V-shaped material dividing plate are respectively opposite to the rough grain separation screen.
[0017] By adopting the above technical scheme, the V-shaped guide hopper is used to guide the discharge position of the dividing mechanism, so that the discharge position of the dividing mechanism is always located in the middle of the machine body, and the top of the inverted V-shaped dividing plate is located in the middle of the bottom opening of the V-shaped guide hopper, to ensure that the rice and brown rice mixture is discharged from the bottom opening of the V-shaped guide hopper and directly falls on the top of the inverted V-shaped dividing plate and is evenly divided into two parts by the inverted V-shaped dividing plate and slides along the inclined surfaces on both sides of the inverted V-shaped dividing plate to the grain-brown separation screens on both sides of the lower end for grain-brown separation operation. The setting of the inverted V-shaped dividing plate realizes the secondary dividing operation after feeding, so that the two grain-brown separation screens can be fed at the same time, greatly improving the efficiency of grain-brown separation.
[0018] The utility model is further configured as follows: the grain-rough separation screen comprises a plurality of inclined sieve plates, each sieve plate is respectively fixed in a frame, the bottom of the frame is respectively slidably matched with a horizontal slide groove, a buffer spring is provided on one side of the horizontal slide groove, and the frames of the two grain-rough separation screens are connected by a grain-rough separation driving mechanism.
[0019] By adopting the above technical scheme, the grain-rough separation driving mechanism is used to drive each sieve plate in the grain-rough separation screen to reciprocate along the horizontal slide groove along with the frame, and the sieve plate continuously sieves the mixture of paddy rice and brown rice during the reciprocating motion, so that brown rice and paddy rice of different specific gravities are separated and discharged from corresponding outlets respectively and enter the next processing link. The setting of the buffer spring can effectively improve the movement stability of the grain-rough separation screen.
[0020] The utility model is further configured as follows: the grain-rough separation driving mechanism comprises a grain-rough separation driving motor fixed outside the machine body, the output shaft of the grain-rough separation driving motor is connected to a driving gear disc inside the machine body, the driving gear disc meshes with a driven gear disc, the driven gear disc is rotatably connected to the machine body, the driving gear disc is connected to a frame of a grain-rough separation screen on one side through a connecting rod 1, the driven gear disc is connected to a frame of a grain-rough separation screen on the other side through a connecting rod 2, one end of the connecting rod 1 is rotatably connected to a fixed pin on one side of the center of the driving gear disc, one end of the connecting rod 2 is rotatably connected to a fixed pin on one side of the center of the driven gear disc, and the other ends of the connecting rod 1 and the connecting rod 2 are respectively connected to the frames of the two grain-rough separation screens.
[0021] By adopting the above technical scheme, the grain-rough separation motor drives the driving toothed disc to rotate after being started, and the driving toothed disc drives the driven toothed disc to rotate synchronously when rotating, and the driving toothed disc drives the sieve plates in the grain-rough separation screen on one side to reciprocate along the horizontal slide groove that slides with the frame through the first connecting rod when rotating, and the driven toothed disc drives the sieve plates in the grain-rough separation screen on the other side to reciprocate along the horizontal slide groove that slides with the frame through the second connecting rod when rotating, and the grain-rough separation screens on both sides only need one power to achieve synchronous operation, and the structure is simple and the operation is convenient.
[0022] The utility model is further configured as follows: a plurality of sieve holes smaller than the minimum size of rice are evenly distributed on the inverted V-shaped dividing plate, an air exhaust port is provided below the inverted V-shaped dividing plate, and the air exhaust port is connected to the dust collector through an air exhaust pipe.
[0023] By adopting the above technical scheme, after the dust collector is started, air is continuously exhausted into the body through the exhaust pipe, so that a certain negative pressure is formed under the inverted V-shaped dividing plate, so that when the rice and brown rice mixture slides down along the inclined surfaces on both sides of the inverted V-shaped dividing plate, fine impurities and dust in the rice and brown rice mixture enter the exhaust pipe through the sieve holes on the inverted V-shaped dividing plate and enter the dust collector through the exhaust pipe, ensuring that the rice and brown rice mixture entering the two grain-brown separation screens is purer, which not only effectively avoids the problem of dust and impurities overflowing from the body and causing environmental pollution during the grain-brown separation process, but also saves the steps of dust and impurity removal after grain-brown separation, thus killing two birds with one stone.
[0024] The beneficial effects of the utility model are:
[0025] 1. The utility model puts the mixture of husked brown rice and residual paddy into the storage chamber of the feed hopper, and then drives the dividing roller to rotate through the dividing motor, so that the rice and brown rice mixture in the storage chamber of the feed hopper enters the accommodating chamber formed between two adjacent dividing plates on the dividing roller in sequence, and as the dividing roller rotates continuously, the rice and brown rice mixture enters the discharging chamber from the storage chamber in batches and enters the machine body through the opening at the bottom of the discharging chamber in sequence for rice and brown separation, thereby achieving the effect of the rice and brown rice mixture entering the machine body in batches, and can effectively prevent the rice and brown rice from entering the machine body at one time. The size of the accommodating cavity formed between two adjacent dividing plates on the dividing roller can be adjusted by the dividing adjustment mechanism. The amount of each portion of the rice and brown rice mixture entering the machine body can be adjusted by adjusting the size of the accommodating cavity formed between two adjacent dividing plates on the dividing roller. Thus, a variety of different quantitative batch feeding operations can be achieved. The amount of batch feeding can be adjusted in time according to the actual situation of the rice and brown rice mixture, so that the gravity rice and brown rice separator can always maintain the best separation effect when separating the rice and brown rice mixture.
[0026] 2. When it is necessary to adjust the size of the accommodating cavity formed between two adjacent dividing plates on the dividing roller, the dividing adjustment drive mechanism drives the dividing adjustment dial to rotate relative to the dividing roller, so that the sliding pins fixedly connected to the dividing plates on the dividing roller slide along the arc grooves on the dividing adjustment dial respectively, so that each dividing plate slides radially along the mounting grooves on the dividing roller respectively until the size of the accommodating cavity formed between two adjacent dividing plates on the dividing roller reaches an appropriate standard, thereby realizing timely adjustment of the batch discharge amount according to the actual situation of the mixture of paddy and brown rice, and the adjustment process is simple and easy to operate.
[0027] 3. The material dividing mechanism of the utility model guides the discharging position of the material dividing mechanism through the V-shaped guide hopper, so that the discharging position of the material dividing mechanism is always located in the middle of the machine body, and the top of the inverted V-shaped dividing plate is located in the middle of the bottom opening of the V-shaped guide hopper, to ensure that the mixture of paddy and brown rice is discharged from the bottom opening of the V-shaped guide hopper and directly falls on the top of the inverted V-shaped dividing plate and is evenly divided into two parts by the inverted V-shaped dividing plate and slides along the inclined surfaces on both sides of the inverted V-shaped dividing plate to the grain-brown separation screens on both sides of the lower end thereof for grain-brown separation operation. The setting of the inverted V-shaped dividing plate realizes the secondary material dividing operation after feeding, so that the two grain-brown separation screens can be fed at the same time, which greatly improves the efficiency of grain-brown separation.
[0028] 4. In the utility model, a plurality of sieve holes smaller than the minimum size of rice are evenly distributed on the inverted V-shaped dividing plate, and an exhaust port is provided below the inverted V-shaped dividing plate, and the exhaust port is connected to the dust collector through an exhaust pipe, so that when the dust collector is started, air is continuously exhausted into the machine body through the exhaust pipe, so that a certain negative pressure is formed below the inverted V-shaped dividing plate, so that when the rice and brown rice mixture slides down along the inclined surfaces on both sides of the inverted V-shaped dividing plate, fine impurities and dust in the rice and brown rice mixture enter the exhaust pipe through the sieve holes on the inverted V-shaped dividing plate and enter the dust collector through the exhaust pipe, ensuring that the rice and brown rice mixture entering the two grain-brown separation screens is purer, which not only effectively avoids the problem of environmental pollution caused by dust and impurities overflowing from the machine body during the grain-brown separation process, but also saves the steps of dust removal and impurity removal after the grain-brown separation, thus killing two birds with one stone. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0030] Figure 1 The utility model is a cross-sectional structural diagram of a gravity rice-rough separator for rice processing.
[0031] Figure 2 yes Figure 1 A is a partial enlarged schematic diagram of the middle part.
[0032] Figure 3 The utility model is a structural schematic diagram of a material separation regulating driving mechanism in a rice processing gravity rice-rough separator.
[0033] Figure 4 The utility model is a structural schematic diagram of an inverted V-shaped material dividing plate in a gravity rice-rough separator for rice processing.
[0034] In the figure, 1, machine body; 2, feeding mechanism; 21, feeding hopper; 22, storage chamber; 23, discharge chamber; 3, material distribution mechanism; 31, partition mechanism; 311, partition plate 1; 312, partition plate 2; 313, arc plate 1; 314, arc plate 2; 315, return spring 1; 316, return spring 2; 317, longitudinal slide; 32, material distribution roller; 33, material distribution motor; 34, mounting groove; 35, material distribution plate; 36, V-shaped guide hopper; 37, inverted V-shaped material distribution plate; 38, sieve hole; 4, material distribution adjustment Mechanism; 41. material distribution adjustment turntable; 42. sliding pin; 43. arc groove; 5. material distribution adjustment drive mechanism; 51. adjusting screw; 52. gear 2; 53. rack; 54. adjusting groove; 55. adjusting cylinder; 6. grain-rough separation screen; 61. sieve plate; 62. frame; 63. horizontal slide groove; 64. buffer spring; 7. grain-rough separation drive mechanism; 71. grain-rough separation drive motor; 72. driving gear disc; 73. driven gear disc; 74. connecting rod 1; 75. connecting rod 2; 76. fixing pin; 8. exhaust port. DETAILED DESCRIPTION
[0035] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0036] like Figures 1 to 4 As shown, a rice processing gravity rice-rough separator comprises a machine body 1 and a feeding mechanism 2 arranged above the machine body 1, wherein the feeding mechanism 2 comprises a feeding hopper 21, wherein the feeding hopper 21 is provided with a dividing mechanism 3 for feeding into a feeding port of the machine body 1, wherein the dividing mechanism 3 comprises a dividing mechanism 31 for dividing the feeding hopper 21 into a material storage chamber 22 and a material discharge chamber 23, wherein the bottom of the material storage chamber 22 is sealed, and the material discharge chamber 23 is communicated with the inner cavity of the machine body 1, wherein the dividing mechanism 31 is provided with a There is a horizontal material dividing roller 32, both ends of which are rotatably connected to the discharge chamber 23 respectively, one end of the material dividing roller 32 is connected to a material dividing motor 33 fixed outside the discharge chamber 23, and the material dividing roller 32 has a plurality of radially extending mounting grooves 34 evenly distributed around the circumference, each mounting groove 34 is provided with a material dividing plate 35, both ends of the material dividing plate 35 are respectively in contact with the two sides of the discharge chamber 23, and one side of the material dividing plate 35 is connected to the material dividing adjustment mechanism 4 on one side of the discharge chamber 23.
[0037] Furthermore, the separation mechanism 31 includes a separation plate 1 311 and a separation plate 2 312 respectively located at the upper and lower ends of the material separation roller 32, the separation plate 1 311 is fixedly provided with an arc plate 1 313 at one end close to the separation plate 2 312, and the separation plate 2 312 is fixedly provided with an arc plate 2 314 at one end close to the separation plate 1 311, the material separation roller 32 is located between the arc plate 1 313 and the arc plate 2, and the material separation roller 32 is respectively connected to the arc plate 1 313 and the arc plate 2. The two opposing dividing plates are respectively against the inner arc surfaces of arc plate 1 313 and arc plate 2 314, and the front and rear sides of the dividing plate 1 311 and the dividing plate 2 312 are respectively slidably matched with the longitudinal slide groove 317 on the front and rear side walls of the feed hopper 21, and the upper end of the dividing plate 1 311 is connected to the top of the longitudinal slide groove 317 by a return spring 1 315, and the lower end of the dividing plate 2 312 is connected to the bottom of the longitudinal slide groove 317 by a return spring 2 316.
[0038] Furthermore, the material distribution adjustment mechanism 4 includes a material distribution adjustment turntable 41 coaxially arranged with the material distribution roller 32, and each of the material distribution plates 35 is fixed with a sliding pin 42 at the end opposite to the material distribution adjustment turntable 41, and each of the sliding pins 42 is slidably matched with a plurality of arc grooves 43 on the material distribution adjustment turntable 41, and each arc groove 43 is arranged in a circular array on the material distribution adjustment turntable 41, and the distance from each point on the arc trajectory where each arc groove 43 is located to the center of the material distribution adjustment turntable 41 decreases or increases successively, and the material distribution adjustment turntable 41 is connected to the material distribution adjustment drive mechanism 5.
[0039] Furthermore, the material dividing adjustment turntable 41 is rotatably connected to the material dividing roller 32, and the material dividing adjustment driving mechanism 5 includes a gear 1 51 fixedly connected to the material dividing roller 32 and a gear 2 52 rotatably connected to the material dividing adjustment turntable 41, the gear 1 51 is meshed with the gear 2 52, the gear 2 52 is meshed with the rack 53 on the material dividing adjustment turntable 41, the rack 53 is slidably matched with the adjustment groove 54 on the material dividing adjustment turntable 41, and one end of the rack 53 is fixedly connected to the telescopic shaft of the adjustment cylinder 55 fixed on the material dividing adjustment turntable 41.
[0040] Furthermore, the material dividing mechanism 3 also includes a V-shaped guide hopper 36 arranged at the bottom opening of the discharge chamber 23 and an inverted V-shaped material dividing plate 37 arranged in the body 1, the top of the inverted V-shaped material dividing plate 37 is located in the middle of the bottom opening of the V-shaped guide hopper 36, and the lower ends of both sides of the inverted V-shaped material dividing plate 37 are respectively opposite to the grain-rough separation screen 6.
[0041] Furthermore, the grain-rough separation screen 6 includes a plurality of inclined sieve plates 61, each sieve plate 61 is respectively fixed in a frame 62, the bottom of the frame 62 is respectively slidably matched with a horizontal slide groove 63, a buffer spring 64 is provided on one side of the horizontal slide groove 63, and the frames 62 of the two grain-rough separation screens 6 are connected through a grain-rough separation driving mechanism 7.
[0042] Furthermore, the grain-rough separation driving mechanism 7 includes a grain-rough separation driving motor 71 fixed outside the machine body 1, the output shaft of the grain-rough separation driving motor 71 is connected to a driving sprocket 72 in the machine body 1, the driving sprocket 72 is meshed with a driven sprocket 73, the driven sprocket 73 is rotatably connected to the machine body 1, the driving sprocket 72 is connected to a frame 62 of a grain-rough separation screen 6 on one side through a connecting rod 1 74, the driven sprocket 73 is connected to a frame 62 of a grain-rough separation screen on the other side through a connecting rod 2 75, one end of the connecting rod 1 74 is rotatably connected to a fixing pin 76 on one side of the center of the driving sprocket 72, one end of the connecting rod 2 75 is rotatably connected to a fixing pin 76 on one side of the center of the driven sprocket 73, and the other ends of the connecting rod 1 74 and the connecting rod 2 75 are respectively connected to the frames 62 of the two grain-rough separation screens 6.
[0043] Furthermore, a plurality of sieve holes 38 smaller than the minimum size of rice are evenly distributed on the inverted V-shaped dividing plate 37 , and an exhaust port 8 is provided below the inverted V-shaped dividing plate 37 , and the exhaust port 8 is connected to the dust collector 10 through an exhaust pipe 9 .
[0044] The working principle of the utility model is as follows: when it is necessary to perform the operation of separating the rice from the rough rice, firstly, the mixture of the hulled brown rice and the remaining paddy is put into the storage chamber 22 of the feed hopper 21, and then the dividing roller 32 is driven to rotate by the dividing motor 33, so that the rice and the brown rice mixture in the storage chamber 22 of the feed hopper 21 enter the accommodating chamber formed between two adjacent dividing plates 37 on the dividing roller 32 in turn, and as the dividing roller 32 continues to rotate, the rice and the brown rice mixture enter the discharge chamber 23 from the storage chamber 22 in batches and enter the machine body 1 in batches through the opening at the bottom of the discharge chamber 23 to separate the rice from the rough rice, thereby achieving the effect of the rice and the brown rice mixture entering the machine body 1 in batches, which can It can effectively prevent too much rice and brown rice from entering at one time, affecting the work efficiency and the rice-brown rice separation effect. The size of the accommodating cavity formed between the two adjacent dividing plates 37 on the dividing roller 32 can be adjusted through the dividing adjustment mechanism 4. By adjusting the size of the accommodating cavity formed between the two adjacent dividing plates 37 on the dividing roller 32, the amount of each portion of the rice and brown rice mixture entering the machine body 1 can be adjusted, so that a variety of different quantitative batch feeding operations can be achieved, that is, the batch feeding amount can be adjusted in time according to the actual situation of the rice and brown rice mixture, so that the gravity rice-brown rice separator always maintains the best separation effect when separating the rice and brown rice mixture.
[0045] When it is necessary to adjust the amount of each portion of the rice and brown rice mixture entering the machine body 1, the material dividing adjustment dial 41 is driven to rotate relative to the material dividing roller 32 by the material dividing adjustment driving mechanism, so that the sliding pins 42 fixedly connected to the material dividing plates 35 on the material dividing roller 32 slide along the arc grooves 43 on the material dividing adjustment dial 41 respectively, so that the material dividing plates 35 slide radially along the mounting grooves 34 on the material dividing roller 32 respectively until the size of the accommodating cavity formed between two adjacent material dividing plates 35 on the material dividing roller 32 reaches a suitable standard, thereby realizing timely adjustment of the amount of batch feeding according to the actual situation of the rice and brown rice mixture, and the adjustment process is simple and easy to operate.
[0046] After the rice and brown rice mixture is discharged from the bottom opening of the V-shaped guide hopper 36 below the discharge chamber 23, it directly falls on the top of the inverted V-shaped dividing plate 37 and is evenly divided into two parts by the inverted V-shaped dividing plate 37 and slides along the inclined surfaces on both sides of the inverted V-shaped dividing plate 37 to the rice-brown separation screens 6 on both sides of its lower end for rice-brown separation operation. The setting of the inverted V-shaped dividing plate 37 realizes the secondary dividing operation after feeding, so that the two rice-brown separation screens 6 can be fed at the same time, which greatly improves the efficiency of rice-brown separation. At the same time, the dust collector 10 is started and air is continuously exhausted into the machine body 1 through the exhaust pipe 9, so that the inverted V-shaped A certain negative pressure is formed under the dividing plate 37, so that when the rice and brown rice mixture slides down the inclined surfaces on both sides of the inverted V-shaped dividing plate 37, fine impurities and dust in the rice and brown rice mixture enter the exhaust pipe 9 through the sieve holes on the inverted V-shaped dividing plate 37 and enter the dust collector 10 through the exhaust pipe 9, ensuring that the rice and brown rice mixture entering the two rice-brown separation screens 6 is purer, which not only effectively avoids the problem of environmental pollution caused by dust and impurities overflowing from the machine body 1 during the rice-brown separation process, but also saves the steps of dust and impurity removal after the rice-brown separation, thus killing two birds with one stone.
Claims
1. A rice processing gravity rice-rough separator, characterized in that: The invention comprises a machine body (1) and a feeding mechanism (2) arranged above the machine body (1), wherein the feeding mechanism (2) comprises a feeding hopper (21), wherein a dividing mechanism (3) for feeding materials into a feeding port of the machine body (1) is arranged inside the feeding hopper (21), wherein the dividing mechanism (3) comprises a dividing mechanism (31) for dividing the feeding hopper (21) into a material storage chamber (22) and a material discharge chamber (23), wherein the bottom of the material storage chamber (22) is sealed, and the material discharge chamber (23) is communicated with the inner chamber of the machine body (1), and wherein a horizontal dividing roller (32) is arranged inside the dividing mechanism (31). The two ends of the dividing roller (32) are respectively rotatably connected to the discharge chamber (23), one end of the dividing roller (32) is connected to a dividing motor (33) fixed outside the discharge chamber (23), the dividing roller (32) is circumferentially evenly distributed with a plurality of radially extending mounting grooves (34), each mounting groove (34) is provided with a dividing plate (35), the two ends of the dividing plate (35) are respectively in contact with the two sides of the discharge chamber (23), and one side of the dividing plate (35) is connected to a dividing adjustment mechanism (4) on one side of the discharge chamber (23).
2. A rice processing gravity rice-rough separator according to claim 1, characterized in that: The separation mechanism (31) comprises a separation plate 1 (311) and a separation plate 2 (312) respectively located at the upper and lower ends of the separation roller (32); an arc-shaped plate 1 (313) is fixedly provided at one end of the separation plate 1 (311) close to the separation plate 2 (312); an arc-shaped plate 2 (314) is fixedly provided at one end of the separation plate 2 (312) close to the separation plate 1 (311); the separation roller (32) is located between the arc-shaped plate 1 (313) and the arc-shaped plate 2; and the separation roller (32) is provided with arc-shaped plates 1 (313) and 314 respectively. The two opposite dividing plates are respectively against the inner arc surfaces of arc plate 1 (313) and arc plate 2 (314); the front and rear sides of the dividing plate 1 (311) and the dividing plate 2 (312) are respectively slidably matched with the longitudinal slide groove (317) on the front and rear side walls of the feed hopper (21); the upper end of the dividing plate 1 (311) is connected to the top of the longitudinal slide groove (317) by a return spring 1 (315); the lower end of the dividing plate 2 (312) is connected to the bottom of the longitudinal slide groove (317) by a return spring 2 (316).
3. A rice processing gravity rice-rough separator according to claim 1, characterized in that: The material distribution adjustment mechanism (4) comprises a material distribution adjustment turntable (41) coaxially arranged with the material distribution roller (32); a sliding pin (42) is fixedly provided at one end of each material distribution plate (35) opposite to the material distribution adjustment turntable (41); each sliding pin (42) is slidably matched with a plurality of arc grooves (43) on the material distribution adjustment turntable (41); each arc groove (43) is arranged in a circular array on the material distribution adjustment turntable (41); the distance from each point on the arc trajectory where each arc groove (43) is located to the center of the material distribution adjustment turntable (41) decreases or increases in sequence; and the material distribution adjustment turntable (41) is connected to the material distribution adjustment drive mechanism (5).
4. A rice processing gravity rice-rough separator according to claim 3, characterized in that: The material distribution adjustment turntable (41) is rotatably connected to the material distribution roller (32), and the material distribution adjustment driving mechanism (5) comprises a gear 1 (51) fixedly connected to the material distribution roller (32) and a gear 2 (52) rotatably connected to the material distribution adjustment turntable (41), the gear 1 (51) is meshed with the gear 2 (52), the gear 2 (52) is meshed with a rack (53) on the material distribution adjustment turntable (41), the rack (53) is slidably matched with an adjustment groove (54) on the material distribution adjustment turntable (41), and one end of the rack (53) is fixedly connected to a telescopic shaft of an adjustment cylinder (55) fixed on the material distribution adjustment turntable (41).
5. The rice processing gravity rice-rough separator according to claim 1, characterized in that: The material distribution mechanism (3) further comprises a V-shaped guide hopper (36) arranged at the bottom opening of the material distribution chamber (23) and an inverted V-shaped material distribution plate (37) arranged in the machine body (1), wherein the top of the inverted V-shaped material distribution plate (37) is located in the middle of the bottom opening of the V-shaped guide hopper (36), and the lower ends of both sides of the inverted V-shaped material distribution plate (37) are respectively opposite to the grain-rough separation screen (6).
6. A rice processing gravity rice-rough separator according to claim 5, characterized in that: The grain-rough separation screen (6) comprises a plurality of inclined sieve plates (61), each sieve plate (61) is fixed in a frame (62), the bottom of the frame (62) is slidably matched with a horizontal slide groove (63), a buffer spring (64) is provided on one side of the horizontal slide groove (63), and the frames (62) of the two grain-rough separation screens (6) are connected via a grain-rough separation driving mechanism (7).
7. A rice processing gravity rice-rough separator according to claim 6, characterized in that: The grain-rough separation driving mechanism (7) comprises a grain-rough separation driving motor (71) fixed outside the machine body (1); the output shaft of the grain-rough separation driving motor (71) is connected to a driving toothed disc (72) in the machine body (1); the driving toothed disc (72) is meshed with a driven toothed disc (73); the driven toothed disc (73) is rotationally connected to the machine body (1); the driving toothed disc (72) is connected to a frame (62) of a grain-rough separation screen (6) on one side via a connecting rod (74). The driven gear disc (73) is connected to the frame (62) of the grain-rough separation screen on the other side through the second connecting rod (75); one end of the first connecting rod (74) is rotatably connected to the fixing pin (76) on the center side of the driving gear disc (72); one end of the second connecting rod (75) is rotatably connected to the fixing pin (76) on the center side of the driven gear disc (73); and the other ends of the first connecting rod (74) and the second connecting rod (75) are respectively connected to the frames (62) of the two grain-rough separation screens (6).
8. The rice processing gravity rice-rough separator according to claim 5, characterized in that: A plurality of sieve holes (38) smaller than the minimum size of rice are evenly distributed on the inverted V-shaped material distribution plate (37), and an air suction port (8) is provided below the inverted V-shaped material distribution plate (37), and the air suction port (8) is connected to the dust collector (10) through an air suction pipe (9).