Rice processing machine

Abstract

The present invention discloses a rice processing integrated machine, which is used for grinding brown rice into polished rice, and respectively recovering the flaked rice bran and broken rice. The rice processing integrated machine comprises a rice mill and a rice bran and broken rice separation device. The rice mill peels off the rice bran on the surface of the brown rice to grind the brown rice, and discharges the flaked rice bran and broken rice mixture. The rice bran and broken rice separation device is connected to the rice mill, directly recovers the rice bran and broken rice mixture discharged by the rice mill, and separates the rice bran and broken rice mixture into rice bran and broken rice. In this way, on the one hand, dust pollution caused by the discharge of rice bran and broken rice can be reduced; on the other hand, the manual recovery of the rice bran and broken rice mixture is eliminated, and one recovery process and one delivery process are reduced, which can save manpower and processing cycle to achieve cost saving.

Description

Technical Field

[0001] The invention relates to the technical field of grain processing equipment, and in particular to an integrated rice processing machine. Background Art

[0002] The rice processing process is generally divided into a series of processing procedures, including screening and cleaning, husking, rice-rough separation, whitening, polishing, and grading. In the rice processing process, each process is completed by a separate device. For example, the rice husker is a grain processing machine that removes the husk of rice and makes brown rice. The rice mill is a machine that uses high-speed diamond grains to remove the surface of the rice grains to achieve the whitening effect. The rice bran and broken rice separation equipment is a machine that separates rice bran from broken rice. Each process is completed by a separate device, and the products of each process are collected and then put into the next device, which leads to a longer processing cycle, complicated operations, and increased pollution to the environment. Summary of the invention

[0003] The main purpose of the invention is to provide an integrated rice processing machine, aiming to solve the problems of long rice processing cycle and serious environmental pollution.

[0004] To achieve the above object, the present invention provides a rice processing integrated machine for grinding brown rice into polished rice and respectively recovering the flaked rice bran and broken rice, comprising:

[0005] A rice milling machine, used for stripping rice bran from the surface of brown rice to whiten the brown rice, and discharging a mixture of the stripped rice bran and broken rice; and,

[0006] The rice bran and broken rice separation equipment is connected to the rice milling machine and is used for directly recovering the rice bran and broken rice mixture discharged from the rice milling machine and separating it into rice bran and broken rice.

[0007] Optionally, the rice milling machine comprises:

[0008] frame;

[0009] A whitening box is installed on the frame, and the two opposite ends of the whitening box are respectively provided with a brown rice inlet and a polished rice outlet. The whitening box is also provided with a rice bran and broken rice outlet, and the rice bran and broken rice outlet is connected to the rice bran and broken rice separation device.

[0010] A milling roller is installed in the milling box, the milling roller extends from the brown rice inlet to the polished rice outlet and can rotate along its own rotation axis, the circumferential surface of the milling roller is wound with a spiral groove, so that when the milling roller rotates, the spiral groove drives the brown rice to move from the brown rice inlet toward the polished rice outlet, an air cavity is arranged inside the milling roller, a plurality of air jet holes connected to the air cavity are arranged at intervals on the circumferential surface of the milling roller, and the milling roller is also provided with an air blast port connected to the air cavity;

[0011] A screen is arranged around the circumference of the roller and is connected to the brown rice inlet and the polished rice outlet to support the rice flow;

[0012] Rice knife, fixed on the inner side of the screen;

[0013] A rotation driving device is mounted on the grinding box and is drivingly connected to the grinding roller to drive the grinding roller to rotate; and

[0014] The air blowing device is installed on the whitening box and is connected with the air blowing port.

[0015] Optionally, the mill housing and the mill roller extend in the up-down direction, the air blast port is arranged on the bottom surface of the mill roller, and a support column is arranged in the air cavity along the central axis of the mill roller;

[0016] The blast device comprises:

[0017] A first blower is installed at the bottom of the support column.

[0018] A first suction fan and a suction duct, wherein the suction duct is arranged on the lower side of the side wall of the whitening box, one end of the suction duct is connected to the interior of the whitening box, and the other end is installed with the first suction fan, and the lower surface of the suction duct is provided with the rice bran and broken rice outlet.

[0019] Optionally, the brown rice inlet is arranged on the upper surface of the whitening box, and a feed hopper is installed at the brown rice inlet;

[0020] An annular channel is provided outside the first blower, the upper surface of the annular channel is connected to the screen, the polished rice outlet is provided on the side of the annular channel, and a propeller rotating around the annular channel is provided inside the annular channel to push the polished rice in the annular channel to the polished rice outlet.

[0021] Optionally, the rice bran and broken rice separation device is installed below the rice milling machine, and the rice bran and broken rice separation device comprises:

[0022] A separation box, wherein the upper surface of the separation box is provided with a rice bran and broken rice inlet, and the rice bran and broken rice inlet is connected to the rice bran and broken rice outlet;

[0023] A vibration plate is arranged at the bottom of the separation box, the vibration plate extends in the front-back direction, the rear end of the vibration plate is connected to the rice bran and broken rice inlet, and the front end is provided with a broken rice outlet;

[0024] an air selection device, arranged in the box body and above the vibration plate, the air selection device comprising a fan and a separation air duct, the separation air duct being arranged above the vibration plate, the separation air duct being provided with a communication port toward the vibration plate, the separation air duct being further provided with an air inlet and an air outlet, the fan being arranged at the air inlet or the air outlet; and,

[0025] The vibration driving device is connected to the vibration plate and is used for driving the vibration plate to vibrate so that the rice bran and broken rice can be separated into layers and flow forward.

[0026] Optionally, the vibration plate comprises:

[0027] The plate frame is formed with a supporting plane extending in the front-rear direction;

[0028] The flexible plate body is covered on the supporting plane, and the flexible plate body is fixedly connected to the plate frame so that the flexible plate body can be arranged in a taut manner.

[0029] Optionally, the rice bran and broken rice separation device further comprises a mounting frame, wherein the mounting frame comprises a base frame arranged below the vibration plate;

[0030] The vibration drive device comprises:

[0031] A plurality of vibration mechanisms, wherein the vibration mechanisms include an elastic cross bar, a vibration transmission column, a transmission shaft and a cam, wherein the elastic cross bar is fixed to the plate frame along a left-right extension, a vibration transmission column is provided on the lower surface of the elastic cross bar, the transmission shaft is rotatably mounted on the bottom frame along a left-right axis, the transmission shaft is provided below the elastic cross bar, and a cam is provided on the transmission shaft corresponding to the vibration transmission column;

[0032] Wherein, a plurality of the vibration mechanisms are arranged below the vibration plate at intervals in the front-to-back direction;

[0033] Multiple vibration motors, each of which is connected to a transmission shaft to drive the transmission shaft to rotate and vibrate, which is transmitted through the cam and the vibration transmission column to drive the elastic cross bar to vibrate forward and upward, thereby causing the flexible plate to vibrate forward and upward.

[0034] Optionally, the rice bran and broken rice separation equipment further comprises:

[0035] a motor driver, electrically connected to the plurality of vibration motors, and configured to control the plurality of vibration motors to have the same vibration frequency; and

[0036] A plurality of electromagnetic clutches, each of which is drivingly connected to a transmission shaft, are used to control the plurality of transmission shafts to have the same starting phase angle.

[0037] Optionally, a plurality of transmission protrusions are provided on the upper surface of the vibration plate at intervals along the flow direction of rice bran and broken rice, each of the transmission protrusions having a front step surface inclined forward and downward and a rear step surface inclined rearward and downward, an angle between the front step surface and the vibration plate is α, 90°<α<180°, an angle between the rear step surface and the vibration plate is β, 90°<β<180°, and α<β.

[0038] Optionally, the transmission protrusion is made of rubber material and is fixed on the flexible plate; and / or;

[0039] A polymer film layer is provided on the upper surface of the vibration plate, and the polymer film layer covers the flexible plate body and the transmission protrusion.

[0040] The technical solution of the present invention discloses a rice processing integrated machine, which is used for grinding brown rice into polished rice, and respectively recovering the flaked rice bran and broken rice. The rice processing integrated machine comprises a rice mill and a rice bran and broken rice separation device. The rice mill peels off the rice bran on the surface of the brown rice to grind the brown rice, and discharges the flaked rice bran and broken rice mixture. The rice bran and broken rice separation device is connected to the rice mill, directly recovers the rice bran and broken rice mixture discharged by the rice mill, and separates the rice bran and broken rice mixture into rice bran and broken rice. In this way, on the one hand, the dust pollution caused by the discharge of rice bran and broken rice can be reduced; on the other hand, the manual recovery of the rice bran and broken rice mixture is eliminated, and one recovery process and one delivery process are reduced, which can save manpower and processing cycles to achieve cost savings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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 the structures shown in these drawings without paying creative work.

[0042] Figure 1 A schematic structural diagram of a first embodiment of the integrated rice processing machine provided by the present invention;

[0043] Figure 2 for Figure 1 The schematic diagram of the structure of the whitening machine of the rice processing machine shown;

[0044] Figure 3 for Figure 1 A side cross-sectional view of a rice whitening machine of the rice processing machine shown;

[0045] Figure 4 for Figure 1 The schematic diagram of the structure of the rice bran and broken rice separation device of the rice processing integrated machine shown;

[0046] Figure 5 for Figure 1 The schematic diagram of the structure of the vibration driving device of the rice bran and broken rice separation device of the rice processing integrated machine shown;

[0047] Figure 6 for Figure 1 A rear view of a vibration driving device of a rice bran and broken rice separation device of a rice processing machine shown;

[0048] Figure 7 A schematic structural diagram of a second embodiment of the integrated rice processing machine provided by the present invention;

[0049] Figure 8 for Figure 7 A side cross-sectional view of a rice whitening machine of the rice processing machine shown;

[0050] Fig. 9 for Figure 7 The schematic diagram of the separation air duct structure of the rice bran and broken rice separation device of the rice processing integrated machine shown;

[0051] Fig.10 for Figure 7 The schematic diagram of the structure of the vibration driving device of the rice bran and broken rice separation device of the rice processing integrated machine shown;

[0052] Fig.11 for Figure 7 A schematic structural diagram of a vibration mechanism of a rice bran and broken rice separation device of a rice processing integrated machine shown;

[0053] Fig.12 A schematic structural diagram of a third embodiment of the integrated rice processing machine provided by the present invention;

[0054] Fig.13 for Fig.12 The schematic diagram of the structure of the separation air duct of the rice bran and broken rice separation device of the rice processing integrated machine shown;

[0055] Fig.14 for Fig.12 The schematic diagram of the structure of the vibration driving device of the rice bran and broken rice separation device of the rice processing integrated machine shown;

[0056] Fig.15 for Fig.14 A partial enlarged view of the middle A;

[0057] Fig.16 A schematic structural diagram of a fourth embodiment of the integrated rice processing machine provided by the present invention;

[0058] Fig.17 A schematic structural diagram of a fifth embodiment of the integrated rice processing machine provided by the present invention;

[0059] Fig.18 This is a schematic structural diagram of a sixth embodiment of the all-in-one rice processing machine provided by the present invention.

[0060] Description of Figure Numbers:

[0061]

[0062]

[0063] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0064] 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.

[0065] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, outside, inside...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0066] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0067] The rice processing process is generally divided into a series of processing steps, including screening and cleaning, husking, separating rice from bran, whitening, polishing, grading, etc. In the rice processing process, each process is completed by a separate device, and the product of each process is collected and then put into the next device, which leads to a longer processing cycle, complicated operations, and increased pollution to the environment. In view of this, the present invention provides a rice processing all-in-one machine 1000, which combines the rice milling process with the rice bran and broken rice separation process to shorten the processing cycle and simplify the processing steps.

[0068] The rice processing integrated machine 1000 provided by the present invention is used for grinding brown rice into polished rice, and recovering the peeled rice bran and broken rice respectively. The rice processing integrated machine 1000 comprises a rice milling machine 200 and a rice bran and broken rice separation device 100. The rice milling machine 200 peels off the rice bran on the surface of the brown rice to grind the brown rice, and discharges the peeled rice bran and broken rice mixture. The rice bran and broken rice separation device 100 is connected to the rice milling machine 200, directly recovers the rice bran and broken rice mixture discharged by the rice milling machine 200, and separates the rice bran and broken rice mixture into rice bran and broken rice. In this way, on the one hand, dust pollution caused by the discharge of rice bran and broken rice can be reduced; on the other hand, the manual recovery of the rice bran and broken rice mixture is eliminated, and one recovery process and one delivery process are reduced, which can save manpower and processing cycle to achieve cost saving.

[0069] Figure 1 This is a schematic diagram of a first embodiment of the integrated rice processing machine 1000 provided by the present invention. Figure 2-Figure 6 For details of this embodiment, see Figure 2 and Figure 3The rice milling machine 200 includes a rice milling box 201, a milling roller 231, a screen 251, a rice knife, a rotation drive device 261 and a blasting device. The rice milling box 201 is mounted on a frame, and a brown rice inlet 221 and a polished rice outlet 222 are respectively arranged at opposite ends of the rice milling box 201. The rice milling box 201 is also provided with a rice bran and broken rice outlet 223, and the rice bran and broken rice outlet 223 is connected to the rice bran and broken rice separation device 100. The milling roller 231 is mounted in the rice milling box 201, and the milling roller 231 extends from the brown rice inlet 221 to the polished rice outlet 222, and can rotate along its own rotation axis. The circumferential surface of the milling roller 231 is wound with a spiral groove, and when the milling roller 231 rotates, the brown rice is driven to move from the brown rice inlet 221 to the polished rice outlet 222. The screen 251 is arranged around the roller 231 and is connected with the brown rice inlet 221 and the polished rice outlet 222. The screen 251 has a sieve hole smaller than the polished rice size and larger than the rice bran broken rice particle size, so that the screen 251 can bear the rice flow, and the rice bran broken rice falls from the sieve hole. The rice cutter is fixed to the inner side of the screen 251. When the brown rice flows through the rice cutter in the screen 251, the rice cutter scrapes off the rice bran on the surface of the brown rice due to the relative movement of the brown rice and the rice cutter, and the mutual squeezing effect between the brown rice. An air chamber 241 is arranged inside the roller 231. A plurality of air jet holes 242 connected to the air chamber 241 are arranged at intervals on the circumferential surface of the roller 231. The roller 231 is also provided with a blast port 243 connected to the air chamber 241. The blast device is installed on the roller housing 201 and is connected to the blast port 243. The wind flow generated by the air blowing device flows into the whitening box 201 from the air injection hole 242 opened on the roller 231. Due to the small equivalent diameter, the rice bran and broken rice fall from the gap of the screen 251 under the action of wind force and are discharged through the bran outlet. The polished rice gradually flows to the polished rice outlet 222 in the screen 251 as the roller 231 rotates. The rotation drive device 261 is installed in the whitening box 201 and is drivingly connected to the roller 231 to drive the roller 231 to rotate.

[0070] See also Figure 3 In this embodiment, the milling box 201 and the milling roller 231 extend in the vertical direction, the air blast port 243 is arranged on the bottom surface of the milling roller 231, and a support column 233 is arranged in the air cavity 241 along the central axis of the milling roller 231. The air blowing device includes a first blower 244, a first suction fan 245 and a suction duct 246. The first blower 244 is installed at the bottom of the support column 233, and the suction duct 246 is arranged on the lower side of the side wall of the milling box 201. One end of the suction duct 246 is connected to the inside of the milling box 201, and the other end is installed with the first suction fan 245. The lower surface of the suction duct 246 is provided with a rice bran and broken rice outlet 223.

[0071] The brown rice inlet 221 is provided on the upper surface of the whitening box 201, and a feed hopper 224 is installed on the brown rice inlet 221; an annular channel 225 is provided outside the first blower 244, and the upper surface of the annular channel 225 is connected to the screen 251; the polished rice outlet 222 is provided on the side of the annular channel 225, and a propeller 226 rotating around the annular channel 225 is provided in the annular channel 225. The brown rice falls from the feed hopper 224 to the roller 231, and the brown rice is whitened under the rotation of the roller 231, and is separated into rice and rice bran. The rice flows to the bottom of the whitening box 201 under the spiral propulsion of the roller 231 and the gravity, and enters the annular channel 225. The propeller 226 in the annular channel 225 pushes the polished rice to the polished rice outlet 222, and falls out from the polished rice outlet 222. The first blower 244 at the bottom of the milling box 201 rotates to generate wind flow, which is blown out from the air injection hole 242 of the milling roller 231. The first suction fan 245 arranged at the lower side of the side wall of the milling box 201 increases the pressure difference between the inside and outside of the milling roller 231 by exhausting air, promotes the separation of rice bran and broken rice from the rice flow, and makes the rice milling more efficient. On the other hand, under the action of the first blower 244 and the first suction fan 245, the rice bran and broken rice can move toward the first suction fan 245, and then fall into the rice bran and broken rice separation device 100 from the rice bran and broken rice outlet 223. In addition, in order to enhance the strength of the milling roller 231, a support member is installed on the support column 233 of the milling roller 231.

[0072] Figure 7 This is a schematic diagram of a second embodiment of the rice processing integrated machine 1000 provided by the present invention, see Figure 7 In this embodiment, the mill housing 201 and the roller 231 extend in the front-to-back direction, the air blast port 243 is arranged on the rear side of the roller 231, and the air blowing device comprises a first blower 244, which is mounted on the rear side of the mill housing 201 and blows air toward the air blast port 243. The rotation drive device 261 comprises a rotary motor, which is mounted on the front side of the mill housing 201 and fixedly connected to the roller 231. The manner in which the rotary motor is fixedly connected to the roller 231 is not limited. In one embodiment, a stepped sleeve is installed between the rollers 231 of the rotary motor, the small end of the stepped sleeve is sleeved on the output shaft of the motor and fixedly connected by screws, and the large end of the stepped sleeve is sleeved on the roller 231 and fixedly connected to the roller 231 by screws.

[0073] The brown rice inlet 221 is arranged at the rear side of the upper surface of the whitening box 201, and a feed hopper 224 is installed on the brown rice inlet 221. The polished rice outlet 222 is arranged at the front side of the whitening box 201, located below the rotating motor, and a polished rice collecting hopper is installed at the polished rice outlet 222. A rice bran and broken rice outlet 223 is arranged on the lower surface of the whitening box 201, and the rice bran and broken rice outlet 223 is directly connected to the rice bran and broken rice separation device. The brown rice falls from the feed hopper 224 to the milling roller 231, and the brown rice is whitened under the rotation of the milling roller 231, and is separated into polished rice and rice bran and broken rice. The polished rice flows to the polished rice outlet 222 under the spiral propulsion of the milling roller 231, and falls into the polished rice collecting hopper from the polished rice outlet 222. The first blower 244 at the rear side of the whitening box 201 rotates to generate wind flow, which is blown out from the air jet hole of the milling roller 231, causing the rice bran and broken rice to separate from the rice flow, escape from the screen 251, and enter the rice bran and broken rice outlet 223.

[0074] Rice bran and broken rice have different economic use values, so in the actual production process, the two should be separated and further processed as different processing raw materials to obtain the maximum profit. The rice bran and broken rice mixture produced by the whitening machine is discharged from the rice bran and broken rice outlet 223 and directly enters the rice bran and broken rice separation device 100 to separate rice bran and broken rice.

[0075] See also Figure 4 The rice bran and broken rice separation device 100 of the present invention comprises a separation box 2, a vibration plate 3, an air selection device, and a vibration driving device. Among them, a rice bran and broken rice inlet 21 is provided on the upper surface of the separation box 2, the vibration plate 3 is arranged at the bottom of the separation box 2, the vibration plate 3 is extended in the front-back direction, the rear end of the vibration plate 3 is connected with the rice bran and broken rice inlet 21, and the front end of the vibration plate 3 is provided with a broken rice outlet 31; the air selection device is arranged in the separation box 2 and is located above the vibration plate 3, the air selection device comprises a fan 41 and a separation air duct 42, the separation air duct 42 is provided with a connecting port 43 facing the vibration plate 3, the separation air duct 42 is also formed with an air inlet 44 and an air outlet 45, and the fan 41 is arranged at the air inlet 44 or the air outlet 45; the vibration driving device is connected to the vibration plate 3 to drive the vibration plate 3 to vibrate, so that the rice bran and broken rice are layered and flow forward. The current air selection method for separating rice bran adopts an air selection system arranged above the vibration plate 3. During the falling process of the rice bran and broken rice mixture, the rice bran is separated from the broken rice by lateral blowing and collected. This air selection system is not easy to control the air volume and has poor separation effect. When the air volume is too large, it will cause serious dust pollution and the broken rice will be blown into the air selection system, resulting in more broken rice mixed in the rice bran, and the separation effect of rice bran and broken rice is poor; at the same time, large air volume consumes a lot of energy and is costly. However, if a small air volume is used, the rice bran cannot be blown out of the broken rice, resulting in poor separation effect of rice bran and broken rice.

[0076] In the rice bran and broken rice separation device 100 of the present invention, a separation air duct 42 is arranged above the vibration plate 3, and a connecting port 43 facing the vibration plate 3 is arranged on the separation air duct 42. Since the air flow in the separation air duct 42 is concentrated, the air volume required for separating the rice bran and broken rice is smaller, and the air volume is easier to control. The separation air duct 42 is arranged above the vibration plate 3, which can effectively avoid the generation of a large amount of dust at the rice bran and broken rice inlet 21, and the air pollution is less. When the rice bran and broken rice separation device 100 is working, the blower located at the air inlet or the suction fan located at the air outlet 45 operates to make the gas in the separation air duct 42 flow, and a low pressure area is generated in the separation air duct 42. The rice bran located at the connecting port 43 has a small aerodynamic equivalent diameter, and will obtain rising buoyancy under the action of the pressure difference, so that the rice bran is lifted up and drawn into the fast-flowing airflow in the separation air duct 42, and then discharged from the air outlet 45 with the airflow. At the same time, since the grain size of the broken rice is too large, it cannot float and stays on the vibration plate 3, and gradually flows forward with the vibration of the vibration plate 3, and flows out from the broken rice outlet 31, so that the separation of rice bran and broken rice is achieved. The vibration plate 3 vibrates under the action of the vibration drive device, sifting the rice bran and broken rice, so that the rice bran accumulated in the lower layer can also directly contact the low-pressure area in the separation air duct 42, so as to be separated from the broken rice, thereby improving the rice bran separation effect and separation efficiency. The rice bran and broken rice separation device 100 provided by the present invention has good rice bran and broken rice separation effect, high separation efficiency, easy control of air volume, and less air pollution.

[0077] In the present invention, the fan 41 can be a blower or a suction fan, or both can be installed. When the fan 41 is a suction fan, the suction fan is arranged at the air outlet 45, and the vibrated rice bran is taken away by the wind flow generated by the suction fan and discharged from the air outlet 45 and collected. When the fan 41 is a blower, the blower is arranged at the air inlet, and the vibrated rice bran is taken away by the wind flow generated by the blower and discharged from the air outlet 45 and collected.

[0078] Fig. 9 This is a diagram of the separation air duct 42 of the second embodiment of the rice processing integrated machine 1000 provided by the present invention. In the second embodiment, the rice bran and broken rice separation device 100 uses a suction fan to generate air flow. Fig. 9 The separation box body 2 includes an upper plate, a lower plate, and two side plates 23 that are connected to the upper plate and the lower plate and are arranged opposite to each other. The separation air duct 42 extends in the front-to-back direction and includes a top plate 46 and a bottom plate 47. The top plate 46, the bottom plate 47 and the two side plates 23 of the separation box body 2 enclose the separation air duct 42. The separation air duct 42 is a relatively concentrated airflow channel, which can ensure the concentration of wind force and improve the efficiency and effect of separation. Compared with the blowing scheme, the airflow in the separation air duct 42 in the suction scheme has better stability, is not easy to generate cyclones, and improves the stability and operability of the rice bran and broken rice separation device 100.

[0079] Furthermore, the top plate 46 and the bottom plate 47 are extended from the air outlet 45 toward the vibration plate 3, and the front ends of the top plate 46 and the bottom plate 47 form a connecting port 43. In the present embodiment, the air inlet 44 and the connecting port 43 coincide with each other, that is, the front ends of the top plate 46 and the bottom plate 47 also form an air inlet 44. When the suction fan is working, the wind flow converges from the circumference of the vibration plate 3, and the vibrated rice bran is convoluted and enters the separation air duct 42 from the air inlet 44 (connecting port 43), and is then discharged from the air outlet 45. The top plate 46 and the bottom plate 47 are moved forward and downward toward the vibration plate 3, so that the connecting port 43 is close to the vibration plate 3, which can better ensure the concentration of wind force, more effectively absorb the rice bran from the mixture, and improve the efficiency and effect of separation.

[0080] Fig.12 This is a schematic structural diagram of a third embodiment of the integrated rice processing machine 1000 provided by the present invention. Fig.13 4 is a schematic diagram of the structure of the separation air duct 42 in the fourth embodiment. In the third embodiment, the rice bran and broken rice separation device 100 uses a hair dryer to generate wind flow, see Fig.13 The separation air duct 42 includes a top plate 46, a bottom plate 47, and two air duct side plates connected to the top plate 46 and the bottom plate 47 and arranged opposite to each other, and the communication port 43 is arranged on the bottom plate 47. The top plate 46, the bottom plate 47 and the two air duct side plates are jointly arranged to form the separation air duct 42. The separation air duct 42 ensures the concentration of wind force and improves the efficiency and effect of separation. In addition, after using the separation air duct 42, only a blower with a small air volume can be used to blow air to meet the requirements of rice bran and broken rice separation. The small air volume blower is easy to control the air volume and has low energy consumption.

[0081] In order to further improve the separation efficiency and separation effect of the air separation device and reduce the energy consumption of the fan 41, the embodiment of the present invention optimizes the design of the separation air duct 42. Fig.13 First, the bottom plate 47 of the separation air duct 42 is bent downward to form a first arc section 471, and the connecting port 43 is arranged at the first arc section 471. In this way, the distance between the connecting port 43 and the vibration plate 3 is shortened, and the jumping rice bran can be better sucked into the separation air duct 42 to improve the separation effect and separation efficiency. The front section of the first arc section 471 and the bottom plate 47 part located at the front end of the first arc section 471 isolate the separation air duct 42 from the rice bran and broken rice inlet 21, prevent the formation of high-speed airflow between the fan 41 and the rice bran and broken rice inlet 21, and make the rice bran flow out from the rice bran and broken rice inlet 21, causing air pollution at the rice bran and broken rice inlet 21, and not conducive to the complete separation of rice bran and broken rice. The rear section of the first arc section 471 isolates the separation air duct 42 from the discharge port, and guides the airflow containing rice bran to flow out from the air outlet 45 of the separation air duct 42 located above the vibration plate 3, so as to separate the rice bran from the broken rice.

[0082] Secondly, the top plate 46 is bent downwardly corresponding to the first arc segment 471 to form a second arc segment 461. This makes the equivalent diameter in the middle of the pipe smaller. According to the continuity theorem of incompressible ideal fluid (the volume flow rate remains unchanged), the flow rate of the fluid is greater at a smaller pipe flow diameter. In this way, the power of the fan 41 required to achieve the same wind speed will be smaller, thereby reducing the energy consumption of the fan 41 and saving costs.

[0083] Thirdly, the airflow in the separation air duct 42 has two functions: one is to generate buoyancy to draw the rice bran into the separation air duct 42; the other is to discharge the rice bran entering the separation air duct 42 from the air outlet 45 along with the high-speed airflow. In this embodiment, a transverse partition 48 is provided in the separation air duct 42. The transverse partition 48 is connected between the two air duct side plates and is located above the connecting port 43 on the side close to the fan 41, so as to divide the air duct above the connecting port 43 into an upper air duct and a lower air duct. The airflow at the lower air duct lifts the rice bran, and the airflow velocity at the upper air duct is relatively large, so that the lifted rice bran flows to the air outlet along with the airflow, further improving the effect and efficiency of rice bran and broken rice separation.

[0084] In addition, a guide plate 49 is provided on one side of the connecting port 43 near the air outlet 45, which is arranged along the wind direction and tilted downward. When the high-speed airflow flowing out of the air inlet hits the guide plate 49, a cyclone is generated at the connecting port 43, which helps to roll up the rice bran and send it into the separation air duct 42, thereby improving the separation effect and separation efficiency.

[0085] It should be noted that the present invention does not limit the specific form of the separation air duct 42. The separation air duct 42 only needs to form a relatively concentrated airflow channel, such as a cylindrical pipe extending in the front-to-back direction. The present invention does not limit the extension direction of the separation air duct 42, which may extend in the left-right direction or the front-to-back direction. In the above two embodiments of the present invention, the separation air duct 42 extends in the front-to-back direction, that is, the separation air duct 42 is arranged parallel to the top of the vibration plate 3, which can increase the contact area between the connecting port 43 and the vibration plate 3, resulting in a better separation effect, while saving space, making the equipment miniaturized and beautiful, and easy to process and assemble.

[0086] The rice bran and broken rice separation device 100 provided by the present invention separates the rice bran and the broken rice by vibrating the vibration plate 3, so that the rice bran deposited under the vibration plate 3 can also be drawn into the separation air duct 42 and then separated from the broken rice, thereby improving the separation effect. The present invention does not limit the specific form of the vibration plate 3, as long as it can drive the rice bran and broken rice to vibrate in the up and down directions and flow toward the broken rice outlet 31 at the same time. The vibration drive device separates the rice bran and the broken rice by driving the vibration plate 3 to vibrate, and also enables the rice bran and broken rice to obtain the power to flow forward, and then flow out from the broken rice outlet 31. The present invention does not limit the specific form of the vibration drive device, as long as it can make the vibration plate 3 vibrate in the up and down directions and perform periodic motion in the front and back directions at the same time.

[0087] In the first embodiment of the rice processing machine 1000 provided by the present invention, the vibration plate 3 is a flexible plate body 172. Figure 4-Figure 6 The vibration plate 3 includes a plate frame 171 and a flexible plate body 172. The plate frame 171 forms a support plane extending in the front-to-back direction. The flexible plate body 172 covers the support plane. The flexible plate body 172 is fixedly connected to the plate frame 171 so that the flexible plate body 172 can be set in a taut manner. Specifically, the plate frame 171 includes two long support plates extending in the front-to-back direction, and a rear plate connecting the rear ends of the two long support plates. The two long support plates and the rear plate constitute the plate frame 171. The upper surface of the plate frame 171 forms a support plane extending in the front-to-back direction. The flexible plate body 172 covers the support plane and is fixedly connected to the plate frame 171 so that the flexible plate body 172 can be set in a taut manner. Preferably, the flexible plate body 172 is made of nylon cloth. The nylon cloth has good elasticity and can better transmit vibration energy. The cloth is reliable and wear-resistant. The plate frame 171 is a steel bar, and nylon cloth covers the steel bar. After the nylon cloth is tightened, it is fixed to the steel bar by buckles to form a vibration plate 3.

[0088] The rice bran and broken rice separation device 100 also includes a base frame 51 located below the vibration plate 3. The vibration drive device includes a plurality of vibration mechanisms and a plurality of vibration motors 353. Among them, the vibration mechanism includes an elastic cross bar 181, a vibration transmission column 182, a transmission shaft 183 and a cam 184. The elastic cross bar 181 is fixed to the plate frame 171 along the left-right direction, and the lower surface of the elastic cross bar 181 is provided with a vibration transmission column 182. The transmission shaft 183 is installed on the base frame 51 along the left-right axis rotation. The transmission shaft 183 is arranged below the elastic cross bar 181, and a cam 184 is arranged on the transmission shaft 183 corresponding to the vibration transmission column 182. Multiple vibration mechanisms are arranged below the vibration plate 3 at intervals along the front-back direction. Each vibration motor 353 is connected to a transmission shaft 183 to drive the transmission shaft 183 to rotate and vibrate, and the transmission is transmitted through the cam 184 and the vibration transmission column 182, driving the elastic cross bar 181 to vibrate forward and upward, thereby causing the flexible plate body 172 to vibrate forward and upward. When the rice bran rice breaking device is working, the vibration motor rotates from back to front and vibrates up and down, driving the transmission shaft 183 and the cam 184 to rotate from back to front and vibrate online. Since the cam 184 is in contact with the vibration transmission column 182, the cam 184 rotates and continuously knocks the vibration transmission column 182, so that the elastic cross bar 181 vibrates forward and upward, and then the flexible plate body 172 vibrates forward and upward. After the rice bran rice breaking mixture falls onto the flexible plate body 172 from the rice bran rice breaking inlet 21, the rice bran rice breaking mixture has an upward and forward movement with the vibration of the flexible plate body 172, and the rice bran is sucked or blown away by the air flow during the vibration process, and the rice breaking moves forward to the rice breaking outlet 31 at the front end of the vibration plate 3 and is collected, so that the separation of rice bran rice breaking is achieved.

[0089] It should be noted that after the flexible plate body 172 is covered on the plate frame 171, it can also be fixedly connected with the elastic cross bar 181. The elastic cross bar 181 is preferably an elastic steel bar, and the flexible plate body 172 is preferably a nylon cloth. The nylon cloth covers the elastic steel bar. After the nylon cloth is tightened, it is fixed to the elastic steel bar and the plate frame 171 by buckles, and further sewn by the cloth strip and the elastic steel bar to achieve long-term reliable fixation, so as to form a flexible vibration plate with elasticity, so as to better vibrate the rice bran and broken rice mixture.

[0090] The flexible plate 172 and the vibration mechanism including the cam 184 used in the embodiment of the present invention are easy to process and have low manufacturing and maintenance costs because most of the structures used are made of flexible or elastic materials. At the same time, because the entire structure is made of flexible or elastic materials, the vibration transmission characteristics are good, and only a small vibration is required to obtain a good separation effect, with low energy consumption and high efficiency. At the same time, the vibration plate 3 and the vibration drive device are compact in structure, light in weight, and occupy a small area, making them easy to move.

[0091] It should also be noted that there is no limit to the number of cams 184 on the transmission shaft 183. In the present application, three cams 184 are sleeved on the transmission shaft 183, and three vibration transmission columns 182 are arranged corresponding to the cams 184 on the elastic cross bar 181. The three cams 184 have completely consistent sleeve angles, so that when the vibration motor 353 is running, the three cams 184 transmit the same vibration amplitude to the vibration transmission column 182, thereby increasing the vibration amplitude of the flexible vibration plate 3 and improving the vibration efficiency.

[0092] It should also be noted that the multiple vibration mechanisms are arranged at intervals below the vibration plate 3. Preferably, the multiple vibration mechanisms are evenly arranged from back to front below the vibration plate 3, which can make the vibration of the vibration plate 3 more regular.

[0093] It should also be noted that since multiple motors rotate to provide power, if the vibration frequencies of the multiple motors or the phase angles of the cam 184 are different, the vibration waves on the flexible plate 172 may overlap or interfere in some places, and the vibration effect will be greatly reduced. If multiple vibration sources can resonate, a larger vibration amplitude can be generated with less energy consumption. Therefore, the embodiment of the present invention designs a multi-unit resonance system to ensure that the vibration frequencies and rotation phase angles of the multiple vibration sources are the same to reduce energy consumption. Figure 5 and Figure 6, the vibration drive device also includes a motor driver and a plurality of electromagnetic clutches 186. The motor driver is electrically connected to the plurality of vibration motors 353 at the same time, and controls the plurality of vibration motors 353 to have the same vibration frequency. A plurality of electromagnetic clutches 186 are mounted to the chassis 51, and each electromagnetic clutch 186 is drivingly connected to a transmission shaft 183, and the plurality of electromagnetic clutches 186 control the plurality of transmission shafts 183 to have the same starting phase angle. The present embodiment includes three vibration mechanisms, three vibration motors 353, and three electromagnetic clutches 186. Specifically, the electromagnetic clutch 186 includes a fixed end 187 and a belt clutch 188, and a slide groove is provided on the shaft sleeve of the belt clutch 188. The fixing pin on the transmission shaft 183 is used to limit the tangential rotation of the shaft sleeve of the belt clutch 188 relative to the transmission shaft 183, so as to ensure that the shaft sleeve can only perform axial reciprocating motion relative to the transmission shaft 183. The fixed end 187 of the electromagnetic clutch 186 and the clutch surface of the clutch 188 are made of wedge-shaped surfaces of the same size. The wedge-shaped surfaces of the fixed ends 187 of the three electromagnetic clutches 186 are installed in a directional manner. Whenever the three vibration motors 353 are started, the electromagnetic clutch 186 is separated to ensure that the starting phase angles of the three transmission shafts 183 are consistent. When the machine stops, the electromagnetic clutch 186 is closed to keep the phase angles of the three vibration motors 353 consistent after stopping, so that the phases of the three vibration motors 353 are the same when they are started next time. At the same time, all cams 184 on all transmission shafts 183 are set to have exactly the same sleeve angle. According to such a vibration system, it is possible to ensure that the vibration frequency and phase of each part on the flexible screen plate are completely consistent, thereby improving the vibration efficiency.

[0094] In the second embodiment and the third embodiment of the rice processing machine 1000 provided by the present invention, the vibration plate 3 is a rigid plate, and there are two types of vibration devices.

[0095] Fig.10 and Fig.11 FIG. 2 is a schematic diagram of the structure of the vibration device of the second embodiment. Fig.10 and Fig.11The rice bran and broken rice separation device 100 includes a mounting frame 5, which includes a bottom frame 51, two support rods 312 and a top frame 313. The bottom frame 51 is located below the separation box 2, and the top frame 313 is located above the separation box 2. The two support rods 312 are respectively located on the left and right sides of the separation box 2, and one end of each support rod 312 is connected to the bottom frame 51, and the other end is connected to the top frame 313. The vibration drive device includes a vibration mechanism and a vibration motor 353. Among them, the vibration mechanism includes a swing rod 351 and a curved rod 352; the swing rod 351 extends in the up-down direction, and the upper end can be rotatably mounted on the top frame 313 in the front-back direction, and the lower end can be rotatably mounted on the front end of the vibration plate 3 in the front-back direction; the curved rod 352 extends in the up-down direction, and the upper end can be rotatably mounted on the rear end of the vibration plate 3 in the front-back direction, and the lower end can be rotatably mounted on the bottom frame 51 in the front-back direction. To ensure the normal operation of the vibration mechanism, in this embodiment, the length of the curved rod 352 is set to L1, the length of the swing rod 351 is set to L2, the distance between the lower end of the swing rod 351 on the vibration plate 3 and the upper end of the curved rod 352 is set to L3, and the distance between the upper end of the swing rod 351 and the lower end of the curved rod 352 in the horizontal direction is set to L4, and the relationship satisfies L1+L4≤L2+L3. The vibration motor 353 is connected to the vibration structure to drive the vibration structure to perform periodic rotation and vibration from back to front.

[0096] See also Fig.10 , there are two swing rods 351, which are arranged on both sides of the separation box 2, with the upper ends mounted on the top frame 313 through the bearing seat, and the lower ends mounted on the front end of the vibration plate 3 through the bearing seat; there are two curved rods 352, which are arranged on both sides of the separation box 2, with the upper ends mounted on the rear end of the vibration plate 3 through the bearing seat, and the lower ends mounted on the bottom frame 51 through the bearing seat. The vibration motor 353 is installed on the bottom frame 51, and is connected to the curved rod 352 to drive the curved rod 352 to rotate and vibrate periodically from back to front. When the rice bran and broken rice separation device 100 is working, the curved rod 352 rotates from back to front, driving the vibration plate 3 to vibrate periodically in the up-down direction and the front-back direction at the same time, so that the rice bran and broken rice jump up and gradually move toward the broken rice outlet 31.

[0097] After simulation and experimental verification, the embodiment of the present invention further optimizes the above-mentioned vibration drive device, wherein L2 = (8-10) L1, L3 = (8-10) L1. If the rocker L2 is too short, the front end of the vibration plate 3 will have too small a movement amplitude, so that the rice bran and broken rice mixture that has just fallen into the vibration plate 3 at the rear end cannot move to the front end; if the rocker is too long, the vibration amplitude will be too large, resulting in unclear stratification of the rice bran and broken rice mixture and poor separation effect, so L2 = (8-10) L1 is preferred. The distance L3 between the lower end of the rocker on the vibration plate 3 and the upper end of the crank, if L3 is too long, it will take a long time for the rice bran and broken rice mixture to move to the broken rice outlet 31, and the separation efficiency is low. If L3 is too short, it may cause the rice bran and broken rice mixture to vibrate for a short time, the separation is not thorough, and the separation effect is poor, so L3 = (8-10) L1 is preferred.

[0098] Furthermore, the angle between the lower end of the rocker and the vibration plate 3 is θ, 90°<θ<180°. When θ≤90°, the rice bran and broken rice mixture at the rear end of the vibration plate 3 cannot obtain the power to move forward, and accumulates at the rear end of the vibration plate 3. When 90°<θ<180°, every part of the vibration plate 3 can obtain the power to move forward, so 90°<θ<180° is preferred.

[0099] In addition, the vibration drive mechanism 460 further includes an elastic support rod 355, one end of which is fixedly connected to the vibration plate 3, and the other end of which is fixedly mounted to the bottom frame 51. Specifically, the elastic support rod 355 is located below the middle section of the vibration plate 3, with its upper end fixedly connected to the vibration plate 3 and its lower end fixedly connected to the bottom frame 51. The elastic support rod 355 can support the vibration plate 3 and also play a certain buffering role on the vibration of the vibration plate 3.

[0100] Fig.13 and Fig.14 FIG. 3 is a schematic diagram of the structure of the vibration device of the third embodiment. Fig.13 and Fig.14The rice bran and broken rice separation device 100 also includes a vibration screening bin 420, which is arranged inside the separation box 2. The vibration screening bin 420 includes a vibration plate 3 extending in the front-to-back direction, a left baffle and a right baffle arranged on the left and right sides of the vibration plate, and a rear baffle arranged at the rear end of the vibration plate. The left baffle, the right baffle, the rear baffle and the vibration plate are enclosed together to form the vibration screening bin 420. The separation air duct 42 is at least partially located in the vibration screening bin 420, so that the connecting port 43 is located in the vibration screening bin 420, reducing the diffusion of rice bran to the surroundings and reducing environmental pollution. The vibration drive device in this embodiment includes a vibration drive mechanism 460 and a plurality of vibration support mechanisms 470. The plurality of vibration support mechanisms 470 are symmetrically arranged on both sides of the vibration screening bin 420 in the front-to-back direction to balance and support the vibration screening bin 420. The vibration drive mechanism 460 is arranged in the lower middle part of the vibration screening bin 420 to balance the vibration of the vibration screening bin 420.

[0101] Specifically, see Fig.13 and Fig.14The rice bran and broken rice separation device 100 also includes a mounting frame 5, which is arranged on the separation box 2 and is located below the vibration screening bin 420. The vibration drive mechanism 460 includes a rotating motor, a rotating shaft 462, an eccentric block 463, a transmission rod 464 and a connecting shaft 467. The rotating motor is arranged on the mounting frame 5 and is located on one side of the mounting frame 5. The rotating shaft 462 is rotatably mounted on the mounting frame 5, and the rotating shaft 462 extends in the left and right directions and is located below the vibration plate 3. The rotating shaft 462 is connected to the rotating motor to rotate under the drive of the rotating motor; the eccentric block 463 is fixedly mounted on the rotating shaft 462; the connecting shaft 467 is fixedly mounted on the vibration screening bin 420; the lower end of the transmission rod 464 is sleeved on the eccentric block 463 and can rotate relative to the eccentric block 463, and the upper end of the transmission rod 464 is sleeved on the connecting shaft 467 and can rotate relative to the connecting shaft 467. Furthermore, the vibration drive mechanism 460 also includes a pulley 465 and a transmission belt 466, and a connecting frame 468. The rotating shaft 462 and the rotating motor are connected through the pulley 465 and the transmission belt 466. Specifically, the pulley 465 is provided on the mounting frame 5 and is located at the front side of the rotating motor. One end of the rotating shaft 462 is fixedly mounted to the pulley 465, and the pulley 465 and the rotating motor are linked through the transmission belt 466. Two connecting frames 468 are fixed to the bottom plate 47 of the vibration plate 3 at intervals in the left-right direction, and the connecting shaft 467 is fixedly mounted to the two connecting frames 468. The transmission rod 464 is provided in the middle of the lower part of the vibration plate 3, and the upper end of the transmission rod 464 is connected to the connecting shaft 467. When the rotating motor rotates, it drives the pulley 465 to rotate, and then the rotating shaft 462 rotates. An eccentric block 463 is fixedly mounted on the rotating shaft 462. The centrifugal force generated by the rotation of the eccentric block 463 causes the transmission rod 464 to vibrate periodically in the up-down direction and the front-back direction at the same time, thereby driving the vibration plate 3 to vibrate periodically in the up-down direction and the front-back direction at the same time, so that the rice bran and broken rice jump up and gradually move toward the discharge port.

[0102] In addition, the transmission rod 464 can also be retractable, and can adapt to different working conditions by adjusting the rod length. The transmission rod 464 is preferably a pneumatic cylinder, which can adjust the rod length and buffer the damage of vibration to equipment parts.

[0103] The vibration support mechanism 470 includes a screening bin support frame 471, a support rod 472 and a support spring 473. Among them, the screening bin support frame 471 is fixedly connected to the vibrating screening bin 420. The upper end of the support rod 472 is hinged to the screening bin support frame 471, and the lower end of the support rod 472 is hinged to the mounting frame 5, so that when the vibration plate 3 vibrates periodically in the up-down direction and the front-back direction at the same time, the vibration support structure can dynamically support the vibration plate 3. The support spring 473 is arranged on the rear side of the support rod 472, the upper end of the support spring 473 is fixedly connected to the screening bin support frame 471, and the lower end of the support spring 473 is fixedly connected to the mounting frame 5. The support rod 472 is arranged to be tilted backward from the mounting frame 5 to the screening bin support frame 471, and the support spring 473 is arranged to be tilted forward from the mounting frame 5 to the screening bin support frame 471, so that the support rod 472, the support spring 473 and the mounting frame 5 form a stable triangular structure, and the vibration plate 3 is located at the top of the triangular structure, thereby reliably supporting the vibration plate 3. In addition, the support spring 473 plays a certain buffering role on the vibration of the vibration plate 3.

[0104] In addition, see Figure 1 , Figure 7 and Fig.12 , side air inlets are provided at the corresponding connecting openings 43 on the two side panels 23 of the separation box 2, and the side air inlets are located below the bottom plate 47 of the separation air duct 42. Since the airflow in the separation air duct 42 is a high-speed airflow, it is a negative pressure relative to the atmospheric pressure in the environment, thereby forming an air pressure difference between the connecting opening 43 of the separation air duct 42 and the side air inlets of the two side panels 23 of the separation box 2, thereby generating a flowing airflow, which, on the one hand, provides power for the rice bran to rise, and on the other hand, can also constrain the rice bran near the connecting opening 43, thereby improving the separation efficiency and effect, and reducing the pollution of rice bran dust to the equipment. The side air inlet is covered with a gauze to prevent the rice bran and broken rice from being thrown out from the side air inlet, causing waste.

[0105] Further, see Figure 4 , Fig. 9 and Fig.13When the rice bran and broken rice separation device 100 is working, the vibration height of the broken rice directly affects the separation effect of rice bran and broken rice. In order to control the vibration height and horizontal movement trend of the broken rice, a plurality of transmission protrusions 34 are arranged at intervals on the upper surface of the vibration plate 3 along the flow direction of the rice bran and broken rice in the embodiment of the present invention. Specifically, each transmission protrusion 34 has a front step surface arranged downwardly inclined toward the broken rice outlet 31 and a rear step surface arranged downwardly inclined toward the rice bran and broken rice inlet 21. The key to controlling the vibration height and flow direction of the broken rice lies in the angle α between the front step surface and the vibration plate 3, and the angle β between the rear step surface and the vibration plate 3. According to the simulation and test results, the angle α between the front step surface and the vibration plate 3 is 90°<α<180°, the angle β between the rear step surface and the vibration plate 3 is 90°<β<180°, and when the angle α is less than the angle β, the broken rice obtains a better vibration height and a tendency to flow toward the broken rice outlet 31. The angle between the front step surface and the vibration plate 3 is greater than 90°. When the broken rice falls vertically onto the inclined surface, the inclined surface provides a component of force to the broken rice to move forward. The angle between the rear step surface and the vibration plate 3 is greater than 90° to prevent the broken rice from getting stuck between the rear step surface and the vibration plate 3. The size of the angle α and the angle β directly affects the speed and amplitude of the broken rice flowing forward. When the angle α is greater than the angle β, the broken rice obtains a greater power to flow forward and flies out of the vibration plate 3, which is not conducive to the collection of broken rice and the separation of rice bran and broken rice; when the angle α is less than the angle β, the speed and amplitude of the broken rice flowing forward are appropriate, which is conducive to improving the separation effect of rice bran and broken rice.

[0106] In addition, a convex portion 35 is provided at the junction of the front step surface and the rear step surface, and the convex portion 35 is arranged to be inclined forward to increase the bouncing height of the rice bran and broken rice, making the bouncing more obvious, which is beneficial to improving the separation effect.

[0107] It should also be noted that when the vibration plate 3 is a flexible plate body 172, the transmission protrusion 34 is made of rubber material, and the transmission protrusion 34 is fixed on the flexible plate body 172 to increase the vibration amplitude of the vibration plate 3. A polymer film layer is provided on the upper surface of the vibration plate 3, and the polymer film layer covers the flexible plate body 172 and the transmission protrusion 34. When the vibration plate 3 is in use, broken rice particles enter the gap between the flexible plate body 172 and the transmission protrusion 34, and long-term use causes the flexible plate body 172 to be worn by broken rice particles. Adding a polymer film layer can increase the overall service life of the vibration plate 3. At the same time, the polymer film layer is also conducive to improving the friction on the surface of the vibration plate 3, so that the vibration plate 3 is more effective in transmitting the rice bran and broken rice flow.

[0108] In the rice processing integrated machine 1000 provided by the present invention, the whitening machine has two structures of a vertical whitening box 201 and a horizontal whitening box 201, and the rice bran and rice crushing separation device 100 includes two separation air ducts 42 using a suction fan 41 and a blower 41, and includes three types of vibration drive devices. These mechanisms are matched to form 12 types of rice processing integrated machines 1000. In addition to the above three types of rice processing integrated machines 1000, the rice processing integrated machine 1000 of the present invention can also be as follows Fig.16 , Fig.17 and Fig.18 The structure shown. Fig.16 , Fig.17 , Fig.18 The schematic diagrams of the structures of the fourth, fifth and sixth embodiments of the rice processing machine 1000 provided in the embodiments of the present invention are shown respectively. The fourth embodiment of the rice processing machine 1000 adopts a vibration drive device of a horizontal whitening machine, a suction fan 41 and a flexible plate 172; the fifth embodiment of the rice processing machine 1000 adopts a vibration drive device of a vertical whitening machine, a suction fan 41 and a rigid plate; the sixth embodiment of the rice processing machine 1000 adopts a horizontal whitening machine, a blower 41 and another vibration drive device of a rigid plate. The specific structures of the other nine rice processing machines 1000 refer to the above embodiments. Since these nine rice processing machines 1000 adopt the technical features of the above embodiments to form a new technical solution, they at least have all the beneficial effects brought by the technical features of the above embodiments, which will not be repeated here.

[0109] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A rice processing machine, used for grinding brown rice into polished rice and recovering the flaked rice bran and broken rice, characterized in that: include: A rice mill, used for stripping the rice bran on the surface of brown rice to whiten the brown rice, and discharging a mixture of the stripped rice bran and broken rice; The rice bran and broken rice separation device is connected to the rice mill and is used to directly recover the rice bran and broken rice mixture discharged from the rice mill and separate it into rice bran and broken rice; The rice bran and broken rice separation device is installed below the rice milling machine, and the rice bran and broken rice separation device comprises: A separation box, wherein the upper surface of the separation box is provided with a rice bran and broken rice inlet, and the rice bran and broken rice inlet is connected to the rice bran and broken rice outlet; A vibration plate is arranged at the bottom of the separation box, the vibration plate extends in the front-back direction, the rear end of the vibration plate is connected to the rice bran and broken rice inlet, and the front end is provided with a broken rice outlet; A wind selection device is arranged in the box body and above the vibration plate, the wind selection device comprises a fan and a separation air duct, the separation air duct is arranged above the vibration plate, the separation air duct is provided with a communication port toward the vibration plate, an air inlet and an air outlet are also formed on the separation air duct, and the fan is arranged at the air inlet or the air outlet; A vibration driving device is connected to the vibration plate to drive the vibration plate to vibrate so that the rice bran and broken rice are separated into layers and flow forward; The vibration plate comprises: The plate frame is formed with a support plane extending in the front-rear direction; A flexible plate body, covering the supporting plane, wherein the flexible plate body is fixedly connected to the plate frame so that the flexible plate body can be arranged in a taut manner; The rice bran and broken rice separation device further comprises a mounting frame, wherein the mounting frame comprises a bottom frame arranged below the vibration plate; The vibration drive device comprises: A plurality of vibration mechanisms, wherein the vibration mechanisms include an elastic cross bar, a vibration transmission column, a transmission shaft and a cam, wherein the elastic cross bar is fixed to the plate frame along a left-right extension, a vibration transmission column is provided on the lower surface of the elastic cross bar, the transmission shaft is rotatably mounted on the bottom frame along a left-right axis, the transmission shaft is provided below the elastic cross bar, and a cam is provided on the transmission shaft corresponding to the vibration transmission column; Wherein, a plurality of the vibration mechanisms are arranged below the vibration plate at intervals in the front-to-back direction; A plurality of vibration motors, each of which is drivingly connected to a transmission shaft to drive the transmission shaft to rotate and vibrate, and transmits through the cam and the vibration transmission column to drive the elastic cross bar to vibrate forward and upward, thereby causing the flexible plate to vibrate forward and upward; The rice bran and broken rice separation equipment also includes; A motor driver, electrically connected to the plurality of vibration motors, and used to control the plurality of vibration motors to have the same vibration frequency; A plurality of electromagnetic clutches, each of which is drivingly connected to a transmission shaft, for controlling the plurality of transmission shafts to have the same starting phase angle; and The upper surface of the vibration plate is provided with a plurality of transmission protrusions at intervals along the flow direction of rice bran and broken rice, each of the transmission protrusions having a front step surface inclined forward and downward and a rear step surface inclined rearward and downward, the angle between the front step surface and the vibration plate is α, 90°<α<180°, the angle between the rear step surface and the vibration plate is β, 90°<β<180°, and α<β.

2. The rice processing machine according to claim 1, characterized in that: The rice milling machine comprises: frame; A whitening box is installed on the frame, and the two opposite ends of the whitening box are respectively provided with a brown rice inlet and a polished rice outlet. The whitening box is also provided with a rice bran and broken rice outlet, and the rice bran and broken rice outlet is connected to the rice bran and broken rice separation device. A milling roller is installed in the milling box, the milling roller extends from the brown rice inlet to the polished rice outlet and can rotate along its own rotation axis, the circumferential surface of the milling roller is wound with a spiral groove, so that when the milling roller rotates, the spiral groove drives the brown rice to move from the brown rice inlet toward the polished rice outlet, an air cavity is arranged inside the milling roller, a plurality of air jet holes connected to the air cavity are arranged at intervals on the circumferential surface of the milling roller, and the milling roller is also provided with an air blast port connected to the air cavity; A screen is arranged around the circumference of the roller and is connected to the brown rice inlet and the polished rice outlet to support the rice flow; Rice knife, fixed on the inner side of the screen; A rotation driving device is mounted on the grinding box and is drivingly connected to the grinding roller to drive the grinding roller to rotate; and The air blowing device is installed on the whitening box and is connected with the air blowing port.

3. The rice processing integrated machine as claimed in claim 2, characterized in that: The rolling box and the rolling roller extend in the up-down direction, the air blast port is arranged on the bottom surface of the rolling roller, and a support column is arranged in the air cavity along the central axis of the rolling roller; The blast device comprises: A first blower is installed at the bottom of the support column. A first suction fan and a suction duct, wherein the suction duct is arranged on the lower side of the side wall of the whitening box, one end of the suction duct is connected to the interior of the whitening box, and the other end is installed with the first suction fan, and the lower surface of the suction duct is provided with the rice bran and broken rice outlet.

4. The rice processing integrated machine as claimed in claim 3, characterized in that: The brown rice inlet is arranged on the upper surface of the whitening box, and a feed hopper is installed on the brown rice inlet; An annular channel is provided outside the first blower, the upper surface of the annular channel is connected to the screen, the polished rice outlet is provided on the side of the annular channel, and a propeller rotating around the annular channel is provided inside the annular channel to push the polished rice in the annular channel to the polished rice outlet.

5. The rice processing integrated machine as claimed in claim 1, characterized in that: The transmission protrusion is made of rubber and is fixed on the flexible plate; and / or; A polymer film layer is provided on the upper surface of the vibration plate, and the polymer film layer covers the flexible plate body and the transmission protrusion.

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