Germ rice milling device with germ damage reducing function and control method thereof

Abstract

The invention provides a milled rice with embryo with a function of reducing germ damage and a control method of the milled rice with embryo, and relates to the technical field of milled rice with embryo preparation. The grinding mechanism comprises a box body which is provided with an inlet, and the feeding mechanism is communicated with the inlet; the grinding and screening assembly is located in the box body, and the grinding and screening assembly is rotatably connected to the box body; a grinding cavity is formed in the top of the grinding and screening assembly and comprises a receiving area and a grinding and screening area, the receiving area is horizontally arranged, the grinding and screening area is located on the peripheral side of the receiving area, and the grinding and screening area is obliquely arranged upwards from the position close to the receiving area to the position away from the receiving area. According to the milled rice with embryo with the function of reducing germ damage provided by the embodiment of the invention, under the operation of the milling and screening assembly, materials can be milled and screened, the subsequent screening work difficulty can be reduced, and then the economical efficiency of milled rice with embryo obtained through production can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of germ rice preparation, and in particular to a germ rice grinding device with a function of reducing germ damage and a control method thereof. BACKGROUND

[0002] Compared with traditional rice, germ rice only removes the hull and a small amount of bran of paddy, and retains the germ, so that the germ rice formed has higher vitamin content, amino acids and minerals necessary for humans, and has higher nutritional value for the human body.

[0003] At present, the processing efficiency of germ rice is low. The reason is that the conventional rice mill is easy to cause greater damage to the bran, resulting in that the final processing can only obtain traditional rice, and cannot obtain germ rice with fine bran and germ still retained. If the grinding is performed by reducing the precision, a large amount of unground paddy is easy to appear, resulting in that the content ratio of the obtained germ rice is low, the subsequent screening work is more difficult, and the economic efficiency of the produced germ rice is poor. SUMMARY

[0004] The embodiment of the present application provides a germ rice grinding device with a function of reducing germ damage and a control method thereof, which can improve the content ratio of germ rice, reduce the difficulty of subsequent screening work, and improve the economic efficiency of the produced germ rice.

[0005] The specific technical scheme of the embodiment is as follows:

[0006] In one aspect, the embodiment of the present application provides a germ rice grinding device with a function of reducing germ damage, comprising:

[0007] a feeding mechanism;

[0008] a grinding mechanism, comprising:

[0009] a box body having an inlet, and the feeding mechanism is communicated with the inlet;

[0010] a grinding and screening assembly located in the box body and rotatably connected to the box body; the grinding and screening assembly has a grinding cavity at the top, and the grinding cavity comprises a receiving area and a grinding and screening area; the receiving area is horizontally arranged, and the grinding and screening area is located on the side of the receiving area; from close to the receiving area to far from the receiving area, the grinding and screening area is arranged in an upwardly inclined manner; the receiving area is configured to receive materials entering from the inlet; the receiving area and the part of the grinding and screening area close to the receiving area are provided with a first outlet which can be blocked and conducted; and the grinding and screening assembly is configured to grind and screen the materials during rotation relative to the box body.

[0011] The inner side wall of the box is spaced apart from the side wall of the milling and screening assembly, and a region where the inner side wall of the box is spaced apart from the side wall of the milling and screening assembly forms a second outlet. The second outlet is in communication with the inlet so that the material can enter the inlet again from the second outlet.

[0012] In some embodiments, the milling mechanism further comprises a milling matching assembly located in the box, the milling matching assembly comprises a milling wall, the milling wall is arranged opposite to the milling and screening region, and the milling and screening assembly is configured to rotate relative to the milling matching assembly so that the material is milled between the milling wall and the milling and screening region.

[0013] In some embodiments, the milling matching assembly is rotatably connected to the box, and when the germ rice milling device is running, the milling matching assembly is configured to rotate in the opposite direction to the milling and screening assembly.

[0014] In some embodiments, the milling matching assembly has a channel in the middle, the channel is in communication with the inlet, and the channel is configured to guide the material flowing from the inlet to the receiving region. The inner wall of the channel is provided with a plurality of sets of guide plates, each set of guide plates comprises a plurality of guide plates arranged in the rotating direction of the milling matching assembly, and the plurality of guide plates in each set are spaced apart.

[0015] In some embodiments, the milling matching assembly further comprises a blocking plate configured to close or open the channel; and the milling mechanism is configured to open only one of the channel and the first outlet at the same time.

[0016] In some embodiments, the milling wall is arranged parallel to the milling and screening region, and the milling wall is provided with a plurality of milling protrusions towards the cavity wall of the milling cavity.

[0017] In some embodiments, the first outlet penetrates the bottom wall of the box, so that the material passing through the first outlet is discharged from the bottom wall of the box.

[0018] In some embodiments, the bottom wall of the box is inclined, so that the material discharged through the second outlet converges at the lowest point of the inner bottom wall of the box.

[0019] In another aspect, the embodiments of the present application provide a control method of a germ rice milling device with a function of reducing germ damage, comprising the following steps:

[0020] Initialization, control the germ rice milling device to run, the milling matching assembly rotates in a first direction, and the milling and screening assembly rotates in a second direction, the first direction and the second direction are opposite;

[0021] Control the blocking plate to open, open the channel, and control the first outlet to close;

[0022] Pour the rice into the feeding mechanism;

[0023] The rice poured into the inlet mechanism is moved to the receiving area of the milling cavity through the inlet and the channel, and moves along the first direction under the guidance of the deflector during the movement to the receiving area of the milling cavity through the channel;

[0024] The rice is milled: when the milling and screening assembly rotates relative to the milling matching assembly, the rice is milled under the matching of the plurality of milling protrusions;

[0025] The milled material is screened, and the milled rice remains on the cavity wall of the milling cavity, and the material that is not completely milled is moved from the edge of the cavity wall of the milling cavity to the second outlet under the rotation of the milling and screening assembly;

[0026] The material flowing through the second outlet is controlled to be poured into the inlet again;

[0027] After the germ rice milling device runs for a preset time, the blocking plate is controlled to close the channel, then the milling and screening assembly is controlled to stop rotating, and then the first outlet is controlled to be conducted, so that the milled rice remaining on the cavity wall of the milling cavity is discharged from the box through the first outlet, and the milled rice is obtained.

[0028] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0029] The germ rice milling device provided by the embodiments of the present application has the function of reducing germ damage. Under the operation of the milling and screening assembly, the material can be milled and screened, and the unqualified material screened out can continue to be milled and screened until the content ratio of the milled rice is higher, which can reduce the difficulty of subsequent screening work, and thus can improve the economy of the produced milled rice. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 is a structural schematic diagram of the germ rice milling device provided by some embodiments of the present application with the function of reducing germ damage;

[0032] Figure 2 is a structural schematic diagram of the germ rice milling device provided by some embodiments of the present application with the function of reducing germ damage;

[0033] Figure 3 is a structural schematic diagram of the milling and screening assembly provided by some embodiments of the present application.

[0034] wherein:

[0035] 10, feeding mechanism; 20, grinding mechanism; 201, box; 2011, inlet; 202, grinding and screening assembly; 2021, grinding cavity; 20211, receiving area; 20212, grinding and screening area; 2022, first outlet; 203, second outlet; 204, grinding matching assembly; 2041, grinding wall; 2042, passage; 2043, deflector; 2044, grinding protrusion. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] "A and / or B" includes the following three combinations: only A, only B, and a combination of A and B.

[0039] The use of "adapted for" or "configured for" in the present application means open and inclusive language that does not exclude devices adapted for or configured for performing additional tasks or steps. In addition, the use of "based on" means open and inclusive, because the process, step, calculation or other action "based on" one or more stated conditions or values can be based on additional conditions or values beyond those stated in practice.

[0040] In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any implementation described as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. The following description is presented to enable any person skilled in the art to make and use the application. Details are set forth in the following description for purpose of explanation. It should be appreciated that one of ordinary skill in the art will readily recognize that the application can be practiced without the use of these specific details. In other instances, well-known structures and processes have not been described in detail in order to avoid obscuring the description of the application. Thus, the present application is not intended to be limited by the embodiments shown, but is to be accorded with the widest scope consistent with the principles and features disclosed.

[0041] The main difference between the germ rice and the milled rice is that the germ rice further includes the germ and part of the bran on the outside of the endosperm. At present, when the germ rice is processed by using the conventional milling device, the processing principle is similar to the current way of obtaining the milled rice, that is, the hull and seed coat (also known as the bran) on the surface of the rice is removed by milling treatment to obtain the germ rice including the germ and part of the bran.

[0042] When the conventional milling device is used, in order to obtain the milled rice with a certain content ratio, the milling intensity is increased so that the bran of the rice is damaged as much as possible. However, this method is easy to damage the bran and the germ, and only a small amount of bran and endosperm is left, which leads to a great loss of nutrients.

[0043] In order to obtain the germ rice, when the conventional milling device is used, the milling intensity of the milling device is reduced compared with the milled rice. When this method is used, a large amount of material with hull and seed coat not cleaned will still exist in the milled material, which leads to a low content ratio of the germ rice meeting the requirements. In order to make people more acceptable, the germ rice and the material with hull and seed coat not cleaned are screened, which leads to a high price of the germ rice with a high content ratio, and thus the economy is poor.

[0044] Therefore, the embodiments of the present application provide a germ rice milling device with a germ damage reduction function and a control method thereof, which can improve the content ratio of the germ rice, reduce the difficulty of subsequent screening work, and improve the economy of the produced germ rice. Please refer to Figures 1-3 , Figure 1 FIG. 1 is a structural schematic diagram of a germ rice milling device with a germ damage reduction function provided by some embodiments of the present application; Figure 2 FIG. 1 is a structural schematic diagram of a germ rice milling device with a germ damage reduction function provided by some embodiments of the present application; Figure 3Figure 1 is a structural schematic diagram of a milling and screening assembly according to some embodiments of the present application. The germ rice milling device with a function of reducing germ damage includes a feeding mechanism 10 and a milling mechanism 20. The milling mechanism 20 includes a box 201 and a milling and screening assembly 202 located in the box 201. The box 201 has an inlet 2011. The feeding mechanism 10 is connected to the inlet 2011.

[0045] The milling and screening assembly 202 is rotatably connected to the box 201. The milling and screening assembly 202 has a milling cavity 2021 at the top. The milling cavity 2021 includes a receiving area 20211 and a milling and screening area 20212. The receiving area 20211 is horizontally arranged. The milling and screening area 20212 is located at the side of the receiving area 20211. From close to the receiving area 20211 to far from the receiving area 20211, the milling and screening area 20212 is arranged upwardly and downwardly. The receiving area 20211 is configured to receive materials (including paddy, brown rice, germ rice and / or milled rice) entering from the inlet 2011. The receiving area 20211 and the part of the milling and screening area 20212 close to the receiving area 20211 are provided with a first outlet 2022 which can be blocked and unblocked. The milling and screening assembly 202 is configured to mill and screen the materials during the rotation relative to the box 201. The inner side wall of the box 201 is arranged in a spaced manner with the side wall of the milling and screening assembly 202. The area where the inner side wall of the box 201 is spaced from the side wall of the milling and screening assembly 202 forms a second outlet 203. The second outlet 203 is connected to the inlet 2011 so that the materials can move from the second outlet 203 to the inlet 2011 again.

[0046] The feeding mechanism 10 is used to store paddy. The stored paddy enters the milling and screening assembly 202 through the inlet 2011 of the box 201. The feeding mechanism 10 can be arranged independently of the box 201 or arranged at the inlet 2011 of the box 201. In some specific examples, for large milling devices, because the position of the inlet 2011 of the box 201 is high, it is more difficult to pour paddy directly from the inlet 2011. In this case, the feeding mechanism 10 can be arranged independently of the box 201. For small milling devices, because the position of the inlet 2011 of the box 201 is low, it is easier to pour paddy directly from the inlet 2011. In this case, the feeding mechanism 10 can be arranged at the inlet 2011 of the box 201.

[0047] The inlet 2011 of the box 201 can be arranged at any position of the box 201 as long as the material can enter the milling and screening assembly 202, for example, the inlet 2011 can be arranged above the box 201, and the material can reach the milling and screening assembly 202 through the inlet 2011 under the action of gravity; the inlet 2011 can also be arranged at the side or below the box 201, and when the inlet 2011 is not arranged above the milling and screening assembly 202, the material can reach the milling and screening assembly 202 through the inlet 2011 by driving of an external power. The material reaching the milling and screening assembly 202 through the inlet 2011 can include rice and semi-finished products that do not meet the requirements of processing, such as brown rice.

[0048] The milling and screening assembly 202 is used for milling and screening the material. When milling, the milling and screening assembly 202 drives the material to rotate and continuously or intermittently contacts other components or other areas in the box 201 to complete the milling action. When screening, because the friction of the germ rice is greater than that of the brown rice and the rice, the centrifugal force generated by the rotation of the milling and screening assembly 202 can screen different types of materials.

[0049] The milling cavity 2021 includes a horizontally arranged receiving area 20211 and an upwardly inclined milling and screening area 20212. The horizontally arranged receiving area 20211 can be arranged below the inlet 2011 to receive the material entering through the inlet 2011. The upwardly inclined milling and screening area 20212 can mill the material and enable part of the material to overcome the action of gravity and be thrown out of the milling cavity 2021 during the rotation of the milling and screening assembly 202.

[0050] The receiving area 20211 and the part of the milling and screening area 20212 close to the receiving area 20211 are provided with a first outlet 2022 that can be blocked and unblocked. The first outlet 2022 can adopt a double-layer structure, the first layer has a plurality of through holes forming a channel, and the second layer is movable relative to the first layer to enable the second layer to close or at least partially unblock the plurality of through holes of the first layer during the movement relative to the first layer. The first outlet 2022 can also adopt a plurality of rotating blades. The plurality of rotating blades can be mutually attached to form a blocking area to facilitate the placement of the material, and the plurality of rotating blades can be spaced apart after rotation to form an unblocking area to facilitate the discharge of the material from the unblocking area. The milling and screening area 20212 is located around the receiving area 20211, and is upwardly inclined from close to the receiving area 20211 to far from the receiving area 20211, and the two form a shape similar to a circular truncated cone.

[0051] The side wall of the milling and screening assembly 202 is the circumferential side area except the top and bottom, and the area between the side wall of the milling and screening assembly 202 and the inner side wall of the box 201 forms a second outlet 203, so that the material thrown out of the milling cavity 2021 can flow to the second outlet 203 and re-enter the inlet 2011 through the second outlet 203.

[0052] In the above embodiment, the control of the germ rice milling device starts, first, the first outlet 2022 is kept in a blocked state, and the milling and screening assembly 202 starts to rotate. Then the rice is poured into the feeding mechanism 10, and the rice enters the inlet 2011 of the box 201 through the feeding mechanism 10, and then enters the receiving area 20211 of the milling cavity 2021. During the rotation of the milling and screening assembly 202, the rice is thrown to the edge of the receiving area 20211 and enters the milling and screening area 20212. Due to the continuous rotation of the milling and screening assembly 202, the rice entering the milling and screening area 20212 still gradually moves away from the receiving area 20211, and at this time the rice in the milling and screening area 20212 continuously or intermittently contacts other components or other areas in the box 201, completing the milling action to form a mixture of rice, brown rice and germ rice. By setting the relationship between the milling and screening area 20212 and the friction force of the mixture, the rice and brown rice can continue to move away from the receiving area 20211, and because the germ rice still accounts for most of the weight of the rice and the relative friction generated by the germ rice is greater, the germ rice can be kept in the milling and screening area 20212 from moving away from the receiving area 20211. The rice and brown rice moving away from the receiving area 20211 enter the inlet 2011 again through the second outlet 203, and then enter the milling and screening assembly 202 again to continue the milling and screening operation. After the germ rice milling device runs for a period of time, the inlet 2011 is closed, and the milling and screening assembly 202 continues to rotate to separate the germ rice from other materials. At this time, the milling and screening assembly 202 is controlled to stop rotating, and then the first outlet 2022 is controlled to be turned on. At this time, the germ rice remaining in the milling cavity 2021 is discharged from the first outlet 2022, and the content ratio of the germ rice is higher.

[0053] Through the above embodiment, under the operation of the milling and screening assembly 202, the material can be milled and screened, and the unqualified material screened out can continue to be milled and screened until the content ratio of the germ rice is higher. This can reduce the difficulty of subsequent screening work, and further improve the economy of the produced germ rice.

[0054] In some embodiments, the grinding mechanism 20 further comprises a grinding matching assembly 204 located in the box 201, the grinding matching assembly 204 comprises a grinding wall 2041, the grinding wall 2041 is located opposite to the grinding screening area 20212, the grinding screening assembly 202 is configured to rotate relative to the grinding matching assembly 204, so that the material is ground between the grinding wall 2041 and the grinding screening area 20212.

[0055] In the above-mentioned embodiments, at least part of the grinding matching assembly 204 is located above the grinding cavity 2021, the wall part of the grinding matching assembly 204 located above the grinding cavity 2021 is the grinding wall 2041. The grinding wall 2041 is located opposite to the grinding screening area 20212, which can be parallel to each other or not. The grinding screening assembly 202 rotates relative to the grinding matching assembly 204, which can be that the grinding matching assembly 204 remains stationary, and the grinding screening assembly 202 rotates relative to the grinding matching assembly 204, or the grinding matching assembly 204 rotates in the opposite direction relative to the grinding screening assembly 202. Through the above-mentioned embodiments, the material can be smoothly ground when located in the grinding screening area 20212.

[0056] In some embodiments, the grinding matching assembly 204 is rotatably connected to the box 201, and when the germ rice grinding device is running, the grinding matching assembly 204 is configured to rotate in the opposite direction of the grinding screening assembly 202.

[0057] Through the above-mentioned embodiments, the grinding matching assembly 204 also remains rotating, which can make the relative speed of the grinding action higher, and thus the grinding effect of the material better. On the other hand, while keeping the relative speed of the grinding within a certain range, the adjustment space of the rotating speed of the grinding screening assembly 202 can be larger, so as to improve the screening effect of the material by adjusting the rotating speed of the grinding screening assembly 202.

[0058] In some embodiments, the grinding matching assembly 204 has a channel 2042 in the middle, the channel 2042 is communicated with the inlet 2011, and the channel 2042 is configured to guide the material flowing from the inlet 2011 to the receiving area 20211. The inner wall of the channel 2042 is provided with a plurality of sets of guide plates 2043, each set of guide plates 2043 comprises a plurality of guide plates 2043, and the plurality of guide plates 2043 in each set are arranged at intervals in the rotating direction of the grinding matching assembly 204.

[0059] In the above embodiment, the channel 2042 can be arranged in a vertical manner to reduce the influence of the rotation of the grinding assembly 204 on the material flowing in through the inlet 2011. The plurality of guide plates 2043 in each group can or can not be arranged in the same plane. In a specific example, the plurality of guide plates 2043 are arranged as described above, so that a gap is still left between any two guide plates 2043 to allow the material to move smoothly from the gap between any two guide plates 2043 to the receiving area 20211.

[0060] Through the arrangement of the above embodiment, when the material flows through the channel 2042, it will contact the plurality of guide plates 2043. When the material contacts the guide plates 2043, it will have the same movement trend as the rotation direction of the grinding assembly 204 under the driving of the guide plates 2043. Thus, after the material moves to the receiving area 20211, it can be located near the grinding and screening area 20212, thereby shortening the time for the material to be thrown to the grinding and screening area 20212, and achieving the purpose of improving the processing efficiency.

[0061] In some embodiments, the grinding assembly 204 further comprises a blocking plate configured to close or open the channel 2042, and the grinding mechanism 20 is configured to open only one of the channel 2042 and the first outlet 2022 at the same time.

[0062] In the above embodiment, the blocking plate can move horizontally relative to the grinding assembly 204 to close or open the channel 2042, or can be in the form of a plurality of movable vanes to close or open the channel 2042. The grinding mechanism 20 can be controlled by an electrically controlled driving logic to open only one of the channel 2042 and the first outlet 2022 at the same time, or can be manually controlled to open only one of the channel 2042 and the first outlet 2022 at the same time. Through the arrangement of the above embodiment, the material can be smoothly ground, screened and discharged.

[0063] In some embodiments, the grinding wall 2041 is arranged parallel to the grinding and screening area 20212, and the grinding wall 2041 is provided with a plurality of grinding protrusions 2044 towards the cavity wall of the grinding cavity 2021.

[0064] In the above embodiment, the grinding wall 2041 is arranged parallel to the grinding and screening area 20212, which can reduce the interference between the grinding wall 2041 and the grinding and screening area 20212, thereby reducing the risk of damage to the overall device. By arranging the grinding protrusions 2044 on the grinding wall 2041, the shape of the protrusions can be easily processed to reduce damage to the germ rice, thereby improving the yield of the germ rice. On the other hand, because the grinding protrusions 2044 arranged on the grinding cavity 2021 can easily block the movement of the material, thereby making the screening effect of the grinding and screening assembly 204 worse, therefore, compared to arranging the grinding protrusions 2044 in the grinding cavity 2021, arranging the grinding protrusions 2044 on the grinding wall 2041 can reduce the impact on the movement of the material, thereby improving the screening efficiency of the material.

[0065] In some embodiments, the first outlet 2022 penetrates the bottom wall of the box 201, so that the material passing through the first outlet 2022 is discharged from the bottom wall of the box 201. Through this arrangement, the obtained germ rice can be discharged from the box 201 in time, thereby achieving the purpose of large-scale processing of rice.

[0066] In some embodiments, the material passing through the first outlet 2022 can also be directly stacked on the bottom or other designated area inside the box 201, and then a openable baffle plate is opened on the box 201 to realize the collection of the obtained germ rice.

[0067] In some embodiments, the bottom wall of the box 201 is arranged obliquely, so that the material discharged through the second outlet 203 converges at the lowest point of the inner bottom wall of the box 201.

[0068] In the above embodiment, the material passing through the second outlet 203 moves to the bottom wall inside the box 201, and then gradually moves to the lowest point of the bottom wall of the box 201 under the action of gravity, and then flows from the lowest point to the inlet 2011 for secondary grinding operation until the required germ rice is obtained.

[0069] On the other hand, the present application provides a control method of a germ rice grinding device with a germ damage reduction function, comprising the following steps:

[0070] S10, initialization, control the germ rice grinding device to run, the grinding and screening assembly 204 rotates in a first direction, and the grinding and screening assembly 202 rotates in a second direction, the first direction and the second direction are opposite.

[0071] S20, control the blocking plate to open, the channel 2042 is connected, and the first outlet 2022 is closed. The steps S20 and S10 have no certain order, either of them can be performed first, or both can be performed simultaneously.

[0072] S30, the rice is poured into the feeding mechanism 10. The step S30 is after the steps S10 and S20.

[0073] S40, the rice poured into the feeding mechanism 10 is controlled to move through the inlet 2011 and the channel 2042 to the receiving area 20211 of the milling cavity 2021, and the rice is moved in the first direction under the guidance of the deflector 2043 during the movement through the channel 2042 to the receiving area 20211 of the milling cavity 2021.

[0074] In the step S40, the rice poured into the feeding mechanism 10 is controlled to move through the inlet 2011 and the channel 2042 to the receiving area 20211 of the milling cavity 2021, and the rice is moved in the first direction under the guidance of the deflector 2043 during the movement through the channel 2042 to the receiving area 20211 of the milling cavity 2021.

[0075] S50, the rice is milled, and the rice is milled by the milling screen assembly 202 and the milling fitting assembly 204 during the relative rotation.

[0076] S60, the milled material is screened, and the milled rice is kept on the cavity wall of the milling cavity 2021, and the material that is not completely milled (including the rice that is not milled and the brown rice that is not sufficiently milled) is moved from the edge of the cavity wall of the milling cavity 2021 to the second outlet 203 under the rotation of the milling screen assembly 202.

[0077] S70, the material flowing through the second outlet 203 is controlled to be poured into the inlet 2011 again.

[0078] In the step S70, after the material is poured into the inlet 2011 again, the material is moved through the channel 2042 to the receiving area 20211 of the milling screen assembly 202 again and is milled and screened again.

[0079] S80, after the germ rice milling device is operated for a preset time, the barrier plate is controlled to close the channel 2042, then the milling screen assembly 202 is controlled to stop rotating, and then the first outlet 2022 is controlled to be conducted, so that the milled rice kept on the cavity wall of the milling cavity 2021 is discharged from the first outlet 2022 to the box 201, and the milled rice is obtained.

[0080] In the step S80, when the milling screen assembly 202 is controlled to stop rotating, the rotation of the milling fitting assembly 204 can be continuously maintained, or the milling fitting assembly 204 can be controlled to stop rotating.

[0081] The embryo rice milling device with the function of reducing embryo damage and the control method thereof provided by the embodiment of the application can simultaneously realize the milling and screening of rice through the setting of a milling and screening assembly, and can reduce the milling accuracy to reduce the damage of rice and obtain more embryo rice, and can further mill and screen the rice and brown rice with insufficient milling degree, thereby improving the quantity of obtained embryo rice and the content ratio of embryo rice, and reducing the difficulty of subsequent screening work and improving the economy of embryo rice.

[0082] The principles and implementation manners of the application are described by using specific examples in the present text, and the above embodiment description is only used to help understand the method and core idea of the application; meanwhile, according to the idea of the application, the specific implementation manners and application ranges will be changed by those skilled in the art, and in summary, the content of the specification should not be understood as the limitation of the application.

Claims

1. A germ rice milling device with the function of reducing germ damage, characterized in that, The invention relates to a rice germ milling device, comprising: a feeding mechanism; a milling mechanism, comprising: a box having an inlet, the feeding mechanism being in communication with the inlet; a milling and screening assembly located in the box, the milling and screening assembly being rotatably connected to the box; the milling and screening assembly having a milling cavity at the top, the milling cavity comprising a receiving area and a milling and screening area, the receiving area being horizontally arranged, the milling and screening area being located around the receiving area, the milling and screening area being arranged in an upwardly inclined manner from close to the receiving area to far from the receiving area; the receiving area being configured to receive materials entering from the inlet, the receiving area and the part of the milling and screening area close to the receiving area being provided with a first outlet which can be blocked and unblocked, the milling and screening assembly being configured to mill and screen the materials during rotation relative to the box; the inner side wall of the box being spaced apart from the side wall of the milling and screening assembly, the area between the inner side wall of the box and the side wall of the milling and screening assembly forming a second outlet, the second outlet being in communication with the inlet so that the materials can re-enter the inlet from the second outlet.

2. The germ rice milling apparatus having a function of reducing germ damage according to claim 1, wherein The milling mechanism further comprises a milling matching assembly located in the box, the milling matching assembly comprising a milling wall, the milling wall being arranged opposite to the milling and screening area, the milling and screening assembly being configured to rotate relative to the milling matching assembly so that the materials are milled between the milling wall and the milling and screening area.

3. The germ rice milling apparatus having a function of reducing germ damage according to claim 2, wherein The milling matching assembly is rotatably connected to the box, the milling matching assembly being configured to rotate in the opposite direction to the milling and screening assembly during operation of the rice germ milling device.

4. The germ rice milling apparatus having a function of reducing germ damage according to claim 3, wherein The milling matching assembly has a channel in the middle, the channel being in communication with the inlet, the channel being configured to guide the materials flowing from the inlet to the receiving area, the inner wall of the channel being provided with a plurality of sets of guide plates, each set of guide plates comprising a plurality of guide plates arranged in the direction of rotation of the milling matching assembly, the plurality of guide plates in each set being arranged at intervals.

5. The germ rice milling apparatus having a function of reducing germ damage according to claim 4, wherein The milling matching assembly further comprises a blocking plate configured to block or unblock the channel; the milling mechanism being configured so that only one of the channel and the first outlet is unblocked at the same time.

6. The germ rice milling apparatus having a function of reducing germ damage according to claim 2, wherein The milling wall is arranged in parallel relative to the milling and screening area, the milling wall being provided with a plurality of milling protrusions towards the cavity wall of the milling cavity.

7. The germ rice milling apparatus having a function of reducing germ damage according to claim 1, wherein The first outlet penetrates the bottom wall of the box so that the materials passing through the first outlet are discharged from the bottom wall of the box.

8. The germ rice milling apparatus having a function of reducing germ damage according to claim 1, wherein The bottom wall of the box is arranged in an inclined manner so that the materials discharged through the second outlet converge at the lowest point of the inner bottom wall of the box.

9. A control method of a germ rice milling apparatus having a function of reducing damage to a germ, characterized by, The invention further relates to a method for operating the rice germ milling device, comprising the following steps: initialization, controlling the rice germ milling device to operate, the milling matching assembly rotating in a first direction, the milling and screening assembly rotating in a second direction, the first direction and the second direction being opposite; controlling the blocking plate to open, unblocking the channel, and controlling the first outlet to be blocked; pouring rice into the feeding mechanism; The rice poured into the feeding mechanism is moved to the receiving area of the milling cavity through the inlet and the channel under the guidance of the guide plate in the first direction; The rice is milled by the milling protrusions when the milling screen assembly rotates relative to the milling cooperating assembly; The milled material is screened, the milled rice is kept on the cavity wall of the milling cavity, and the incompletely milled material is moved from the edge of the cavity wall of the milling cavity to the second outlet under the rotation of the milling screen assembly; The material flowing through the second outlet is poured into the inlet again; After the operation of the rice germ milling device for a preset time, the channel is closed by the blocking plate, the milling screen assembly is stopped by the control, the first outlet is turned on, the milled rice kept on the cavity wall of the milling cavity is discharged from the box through the first outlet, and the milled rice is obtained.

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