Color sorter distributing hopper for rice processing
By designing the arch filter and unloading frame structure in the color sorter for rice processing, the problem of difficult classification of rice lamination and impurities is solved, and more efficient rice screening and impurities treatment are achieved, and the color sorting quality is improved.
Patent Information
- Application Number
- CN202510557791.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2025-05-30
AI Technical Summary
The existing color sorting machine for rice processing uses a traditional conical flared hopper when feeding, which leads to stacking of rice materials, making it difficult to accurately color the bottom rice materials, and it is difficult to effectively classify and process the impurities in the initial processing rice materials.
A color sorting machine dividing hopper for rice processing is designed, using an arch filter and a force-release frame structure. The arch filter adaptively falls and stretches when the rice is poured, accelerates the screening of rice, and accelerates the filtering of impurities through the wave swing of the two-way driven plate.
It effectively solves the problem of insufficient screening caused by rice lamination, improves the classification and treatment efficiency of impurities, reduces the burden of color sorting, and reduces the risk of large-scale rice entering the color sorting machine, and improves the color sorting quality.
Smart Images
Figure CN120054885A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of rice processing, and particularly to a material distribution hopper for a color sorter in rice processing. Background Art
[0002] A color sorter is a device that automatically sorts out different-color particles in granular materials based on the differences in the optical properties of the materials. Using photoelectric detection technology, currently, color sorters are used in the fields of bulk material or packaged industrial products and food quality inspection and grading. In rice processing, using a color sorter can effectively reduce the content of impurities in rice, and the screening conditions and efficiency are relatively high. Currently, the application of color sorters in rice processing and screening is relatively extensive.
[0003] However, when feeding materials, the existing color sorters for rice processing mostly use relatively traditional conical flared hoppers to pour a large amount of rice materials into the color sorter for screening at one time. After a large amount of rice materials are poured into the color sorter at one time, on the one hand, due to the stacking of the rice materials, it is easy to occur that the rice materials at the bottom cannot be accurately color-sorted, and there will still be a problem of insufficient screening. On the other hand, the initially processed rice materials are mostly subjected to operations such as mechanical shelling, cleaning, and bagging. A large amount of impurities inside them will be screened out. However, due to the existence of mechanical processing errors and misjudgments, inevitably, some impurities such as stones will still enter the color sorting system, which will increase the color sorting burden. At the same time, the colors of the impurities are also different. For example, stones have (black, yellow, white, etc.), and the color sorter can only screen substances of different colors. Therefore, the impurities will be classified according to their colors, ultimately resulting in the dispersion of the impurities, making it more difficult to handle them subsequently.
[0004] In view of the above problems, there is an urgent need to innovate and design on the basis of the original material distribution hopper for the color sorter in rice processing. Summary of the Invention
[0005] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution significantly different from the existing technologies. Specifically, the purpose of the present invention is to provide a material distribution hopper for a rice color sorter, so as to solve the problems raised in the above background technology. However, the existing rice color sorters mostly use relatively traditional conical flared hoppers when feeding, so as to pour a large amount of rice materials into the color sorter for screening at one time. When a large amount of rice materials are poured into the color sorter at one time, on the one hand, due to the stacking of the rice materials, it is easy to occur that the rice materials at the bottom cannot be accurately color sorted, and there will still be a problem of insufficient screening. On the other hand, the preliminarily processed rice materials are mostly subjected to operations such as mechanical shelling, cleaning, and bagging, and a large amount of internal impurities will be screened out. However, due to the existence of mechanical processing errors and misjudgments, some impurities such as stones will inevitably still enter the color sorting system, which will increase the color sorting burden. At the same time, the colors of the impurities are also different, such as stones (black, yellow, white, etc.), and the color sorter can only screen substances of different colors. Therefore, the impurities will be classified according to their colors, ultimately resulting in the dispersion of the impurities and being more difficult to handle subsequently.
[0006] To achieve the above object, the present invention provides the following technical solution: A material distribution hopper for a rice color sorter, including a color sorter body and a material distribution hopper body fixedly installed above the color sorter body, further including an arched filter screen fixed above the material distribution hopper body that adaptively falls and screens based on the weight of the rice materials and jacks up and filters impurities, and a force unloading frame uniformly suspended and fixed inside the material distribution hopper body to provide stable support and reset function for the arched filter screen; Inside the force unloading frame, a two-way driven plate elastically arranged and connected to the arched filter screen is provided, which drives the arched filter screen to swing horizontally in a wave shape when falling to accelerate the screening of the rice materials.
[0007] Preferably, the material distribution hopper body is designed in a flared shape with a wider upper part and a narrower lower part, and the lower end of the material distribution hopper body is matched with the feeding port at the upper end of the color sorter body.
[0008] Preferably, a cross support is fixed on the inner wall of the material distribution hopper body, and the lower ends of several force unloading frames are uniformly fixed on the upper surface of the cross support.
[0009] Preferably, the arched filter screen is made of an elastic material and the filter holes will become larger as it is stretched; The edge of the arched filter screen is subjected to a 90-degree bending treatment, and an annular cavity groove is provided on the upper edge of the material distribution hopper body that is inserted and matched with the bent edge of the arched filter screen; Several screws for pressing the bent edge of the arched filter screen are inserted at equal angles on the upper edge of the material distribution hopper body.
[0010] Preferably, the lower end of a pressure drop rod is slidably installed through the upper end of the force unloading frame, and the pressure drop rod is provided with a hollow through hole up and down; A two-way driven rod is slidably arranged in the central hole of the pressing and falling rod.
[0011] Preferably, cross bars for vertically limiting the two-way driven rod are symmetrically fixed in the hollow cavity of the pressing and falling rod, and the two-way driven rod and the pressing and falling rod form a horizontal sliding connection structure through the cross bars.
[0012] Preferably, the upper end of the two-way driven rod penetrates through the pressing and falling rod and is fixedly connected to the lower surface of the arched filter screen, and the lower end of the two-way driven rod is fixedly connected to the upper surface of the two-way driven plate; A shielding disc for preventing rice materials from falling into the central hole of the pressing and falling rod is fixed at the upper end of the two-way driven rod located outside the pressing and falling rod.
[0013] Preferably, a return spring is arranged inside the unloading frame, the upper end of the return spring is welded to the lower surface of the two-way driven plate, and the lower end of the return spring is fixed to the inner wall of the unloading frame.
[0014] Preferably, both ends of the two-way driven plate are designed with semi-circular cross-sections, and continuous wave-shaped grooves that are snap-fitted with the semi-circular ends of the two-way driven plate are provided on the inner walls on both sides of the unloading frame; The continuous wave-shaped grooves provided on both sides of the unloading frame are arranged in a staggered up-and-down manner; Transition arc surfaces for the smooth sliding of the ends of the unloading frame are provided at the adjacent concave and convex parts of the continuous wave-shaped grooves.
[0015] Preferably, a material receiving ring with an open upper end is fixedly surrounded on the outer wall of the hopper body.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: When a large amount of rice materials are poured onto the arched filter screen manually or mechanically at one time, the dense and large amount of rice materials can be regarded as a whole substance impacting on the arched surface of the arched filter screen when contacting the arched filter screen. Since the lower end of the arched filter screen is elastically supported by the unloading frame, during the period when the rice materials are poured at one time, the arched filter screen will adaptively change from the upward convex posture to the downward concave posture, and when the arched filter screen changes from the upward convex posture to the downward concave posture, it will be adaptively stretched based on the degree of downward concavity, and the filter holes inside it will also be adaptively stretched and enlarged, thereby accelerating the falling of the rice materials; During the process of the arched filter screen changing from a convex upward posture to a concave downward posture, the arched filter screen will simultaneously press down multiple bidirectional driven rods evenly distributed below, causing the bidirectional driven rods to drive the pressing rods and bidirectional driven plates to fall vertically synchronously. The bidirectional driven rods and the pressing rods remain relatively stationary in the vertical direction. However, since the continuous wave grooves on both sides of the unloading frame that fit the two ends of the bidirectional driven plate are arranged in a staggered up-and-down manner, when the bidirectional driven plate falls while compressing the return spring, it will also perform periodic horizontal yawing. As a result, the bidirectional driven plate drives the bidirectional driven rods to perform left-right displacement in the horizontal direction while falling vertically, thus realizing the posture of bidirectional movement. When the kinetic energy of the bidirectional driven rods that will yaw left and right during falling is transmitted to the arched filter screen fixedly connected to the upper end of the bidirectional driven rods, it will form a kinetic energy transmission method of left-right shaking, thereby causing the arched filter screen connected to the upper end of the bidirectional driven rods to form regional high-frequency shaking, and further accelerating the rice material filtration during the process of the arched filter screen changing from a convex upward posture to a concave downward posture; Immediately afterwards, when the gravitational potential energy when the rice material is poured in one go is completely consumed, the bidirectional driven plate also moves to the maximum stroke. At the same time, the rice material on the upper surface of the arched filter screen is also completely filtered. Subsequently, under the reset action of the return spring, the bidirectional driven plate rises and resets in a wave-like left-right yawing manner and drives the arched filter screen to gradually change from a concave downward posture to a convex upward posture. During this period, the remaining rice material on the upper surface of the arched filter screen will also be "shaken" and dropped again. Subsequently, some larger impurities such as stones will be pushed up by the arched filter screen during its upward reset. Finally, the upper surface of the arched filter screen will reset to form an arch top, so that the lifted impurities will roll from the center of the arch top to the edge. Moreover, the upper eaves of the material distribution hopper body are also inclined and matched with the arch degree of the arched filter screen. Therefore, the rolled impurities will also smoothly fall along the inclined upper eaves of the material distribution hopper body into the receiving ring for collection, thereby achieving the effect of self-adaptive screening and removing impurities. And through the "blocking" effect of the arched filter screen, the amount of rice material fed into the color sorter body at one time can be reduced, preventing a large amount of rice material from entering and accumulating and affecting the color sorting quality of the color sorter. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a front view structural schematic diagram of the present invention.
[0018] Figure 2 It is a first three-dimensional structural schematic diagram of the present invention.
[0019] Figure 3 It is a second three-dimensional structural schematic diagram of the present invention.
[0020] Figure 4 It is a three-dimensional structural schematic diagram of the present invention after removing the arched filter screen.
[0021] Figure 5 It is a three-dimensional structural schematic diagram of the connection between the material distribution hopper body and the unloading frame of the present invention.
[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the material distribution hopper body after being cut open.
[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the arched filter screen after being cut open.
[0024] Figure 8 It is a schematic diagram of the connection structure of the force unloading frame, the pressure drop rod and the two-way driven rod of the present invention.
[0025] Figure 9 It is a front cross-sectional structural schematic diagram of the connection between the pressure-dropping rod, the two-way driven plate and the unloading frame of the present invention.
[0026] In the figure: 1. Color sorter body; 2. Material sorting hopper body; 21. Material receiving ring; 3. Arched filter screen; 4. Cross bracket; 5. Unloading frame; 51. Return spring; 6. Press-down rod; 61. Two-way driven rod; 7. Two-way driven plate. DETAILED DESCRIPTION
[0027] 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.
[0028] See also Figures 1 to 9 The present invention provides a technical solution: a color sorter hopper for rice processing, comprising a color sorter body 1 and a hopper body 2 fixedly installed above the color sorter body 1, and also comprising an arched filter 3 fixed above the hopper body 2 for adaptively falling down and screening based on the weight of rice materials and lifting up to filter impurities, and a force unloading frame 5 evenly suspended and fixed inside the hopper body 2 to provide stable support and reset for the arched filter 3; The unloading frame 5 is elastically provided with a bidirectional driven plate 7 which is connected to the arched filter screen 3 and drives the arched filter screen 3 to swing horizontally in a wave-like manner when falling to accelerate the screening of rice materials.
[0029] In this embodiment, the arched filter screen 3 is in a convex posture with the arch top facing upwards in the initial state, and at this time, the reset springs 51 inside the unloading frame 5 used for support below are also in a natural state. When a large amount of rice materials are poured onto the arched filter screen 3 at one time manually or mechanically, the dense and large amount of rice materials can be regarded as a whole substance impacting on the arched surface of the arched filter screen 3 when contacting it. Since the lower end of the arched filter screen 3 is elastically supported by the unloading frame 5, during the period when the rice materials are poured in at one time, the arched filter screen 3 will adaptively change from the convex posture to the concave posture, and when the arched filter screen 3 changes from the convex posture to the concave posture, it will be adaptively stretched based on the degree of concavity (the weight of the rice materials), and the filter holes inside it will also be adaptively stretched and enlarged, thereby accelerating the falling of the rice materials. The material distribution hopper body 2 is designed in a horn shape with a wider upper part and a narrower lower part, and the lower end of the material distribution hopper body 2 is matched with the feeding port at the upper end of the color sorter body 1.
[0030] In this embodiment, on the one hand, the horn shape with a wider upper part and a narrower lower part can accept the rice materials to the greatest extent, and at the same time, it can make the sifted rice materials smoothly enter the feeding port at the upper end of the color sorter body 1 along the narrower lower end of the material distribution hopper body 2 (the feeding port at the upper end of the color sorter body 1 is shown in the appendix, and the color sorter body 1 is a relatively mature existing technology, so this invention will not be elaborated too much). Figure 4 and the color sorter body 1 is a relatively mature existing technology, so this invention will not be elaborated too much).
[0031] A cross-shaped support 4 is fixed to the inner wall of the material distribution hopper body 2, and the lower ends of a number of unloading frames 5 are evenly fixed to the upper surface of the cross-shaped support 4.
[0032] The arched filter screen 3 is made of elastic material and the filter holes will become larger as it is stretched; The edge of the arched filter screen 3 is processed by a 90-degree bend, and an annular cavity groove is provided on the upper edge of the material distribution hopper body 2 that is inserted and matched with the bent edge of the arched filter screen 3; A number of screws for pressing the bent edge of the arched filter screen 3 are inserted at equal angles on the upper edge of the material distribution hopper body 2.
[0033] In this embodiment, the purpose of providing an annular cavity groove on the upper edge of the material distribution hopper body 2 that is inserted and matched with the bent edge of the arched filter screen 3 is to strengthen the connection tightness between the arched filter screen 3 and the material distribution hopper body 2; at the same time, a number of screws for pressing the bent edge of the arched filter screen 3 are inserted at equal angles on the upper edge of the material distribution hopper body 2, aiming to further improve the connection tightness between the arched filter screen 3 and the material distribution hopper body 2 and prevent the opening from loosening after long-term use.
[0034] The upper end of the unloading frame 5 slidably penetrates and installs the lower end of the pressing rod 6, and the pressing rod 6 is provided with a hollow through hole up and down; A two-way driven rod 61 is slidably arranged in the central hole of the pressing rod 6.
[0035] In this embodiment, A cross bar for vertically limiting the bidirectional driven rod 61 is symmetrically fixed in the hollow cavity of the pressing rod 6, and the bidirectional driven rod 61 forms a horizontal sliding connection structure with the pressing rod 6 through the cross bar.
[0036] In this embodiment, The upper end of the bidirectional driven rod 61 penetrates the pressure-dropping rod 6 and is fixedly connected to the lower surface of the arch filter 3, and the lower end of the bidirectional driven rod 61 is fixedly connected to the upper surface of the bidirectional driven plate 7; A shielding plate is fixed to the upper end of the bidirectional driven rod 61 located outside the pressing rod 6 to prevent the rice from falling into the central hole of the pressing rod 6.
[0037] In this embodiment, during the process of the arched filter 3 changing from an upward convex posture to a downward concave posture, the arched filter 3 will synchronously press down multiple bidirectional follower rods 61 evenly distributed below, so that the bidirectional follower rods 61 synchronously drive the pressure drop rod 6 and the bidirectional follower plate 7 to fall vertically, and the bidirectional follower rod 61 and the pressure drop rod 6 remain relatively stationary in the vertical direction.
[0038] A return spring 51 is disposed inside the unloading frame 5 , and the upper end of the return spring 51 is welded to the lower surface of the two-way driven plate 7 , and the lower end of the return spring 51 is fixed to the inner wall of the unloading frame 5 .
[0039] The two ends of the bidirectional driven plate 7 are designed with semicircular cross-sections, and the inner walls on both sides of the force unloading frame 5 are provided with continuous wave grooves that are engaged with the semicircular ends of the bidirectional driven plate 7; The continuous wave grooves on both sides of the force unloading frame 5 are arranged in an up-and-down staggered manner; The concave and convex parts adjacent to the continuous wave groove are provided with transition arc surfaces for the end of the force unloading frame 5 to slide down smoothly.
[0040] In this embodiment, since the continuous wave grooves corresponding to the two sides of the unloading frame 5 and the two ends of the two-way driven plate 7 are staggered up and down, when the two-way driven plate 7 falls under the compression return spring 51, it will also perform periodic horizontal swing, so that the two-way driven plate 7 will synchronously drive the two-way driven rod 61 to move left and right in the horizontal direction while falling vertically, thereby realizing the posture of two-way movement. The kinetic energy of the two-way driven rod 61 that will swing left and right when falling will form a left-right shaking kinetic energy transfer mode when it is transferred to the arch filter 3 fixedly connected to the upper end of the two-way driven rod 61, thereby causing the arch filter 3 connected to the upper end of the two-way driven rod 61 to form a regional high-frequency swing, thereby further accelerating the rice material filtration of the arch filter 3 in the process of changing from an upward convex posture to a concave posture.
[0041] A material receiving ring 21 with an open upper end is fixed around the outer wall of the material distribution hopper body 2 .
[0042] In this embodiment, the upper surface of the final arched filter screen 3 will reset to form a vault, so that the lifted impurities will roll from the center of the vault to the edge, and the upper eaves of the hopper body 2 are also inclined to match the arch degree of the arched filter screen 3. Therefore, the rolling impurities will also smoothly fall along the inclined upper eaves of the hopper body 2 into the receiving ring 21 for collection.
[0043] Working principle: When using the hopper of the color sorter for rice processing, first, as Figure 1 , Figure 2 and Figure 3 shown, in the initial state, the arched filter screen 3 is in a convex posture with the vault facing upward, and at this time, the internal return springs 51 of the unloading frames 5 used for supporting below are also in a natural state. When a large amount of rice materials are poured onto the arched filter screen 3 at one time manually or mechanically, the dense and large amount of rice materials can be regarded as a whole substance impacting on the arched surface of the arched filter screen 3 when contacting it (because at the moment of contact, the filtering ability of the arched filter screen 3 is limited and there are many and dense rice materials, and the arched filter screen 3 is not able to filter completely in an instant, so it can be regarded as pressing on the arched filter screen 3 as a whole). Since the lower end of the arched filter screen 3 is elastically supported by the unloading frame 5, during the period when the rice materials are poured in at one time, the arched filter screen 3 will adaptively change from the convex posture to the concave posture. Moreover, when the arched filter screen 3 changes from the convex posture to the concave posture, it will be adaptively stretched based on the degree of concavity (the weight of the rice materials), and the filter holes inside it will also be stretched and enlarged adaptively, thus accelerating the falling of the rice materials.
[0044] During the process of the arched filter screen 3 changing from the convex posture to the concave posture, the arched filter screen 3 will simultaneously press down on a plurality of bidirectional driven rods 61 evenly distributed below, as Figure 6 , Figure 8 and Figure 9As shown, the bidirectional driven rod 61 synchronously drives the pressing and dropping rod 6 and the bidirectional driven plate 7 to vertically drop. The bidirectional driven rod 61 and the pressing and dropping rod 6 maintain a relatively static state in the vertical direction. However, since the continuous wave grooves on both sides of the unloading frame 5 that fit the two ends of the bidirectional driven plate 7 are arranged in a staggered manner up and down, when the bidirectional driven plate 7 drops while compressing the return spring 51, it will also perform periodic horizontal yawing (simply put, the bidirectional driven plate 7 will first horizontally shift and drop in one direction, and then shift and drop in the opposite direction, and so on in a cycle). As a result, the bidirectional driven plate 7 synchronously drives the bidirectional driven rod 61 to perform left and right displacements in the horizontal direction while vertically dropping, thereby achieving a bidirectional movement posture. When the kinetic energy of the bidirectional driven rod 61 that yaws left and right during dropping is transmitted to the arched filter screen 3 fixedly connected to the upper end of the bidirectional driven rod 61, a kinetic energy transmission method of left and right shaking will be formed, so that the arched filter screen 3 connected to the upper end of the bidirectional driven rod 61 forms a regional high-frequency shaking, which further accelerates the rice material filtration during the process of the arched filter screen 3 changing from an upward convex posture to a downward concave posture.
[0045] Immediately afterwards, when the gravitational potential energy when the rice material is poured in one go is completely consumed, the bidirectional driven plate 7 also moves to the maximum stroke. At the same time, the rice material on the upper surface of the arched filter screen 3 is also completely filtered. Subsequently, under the reset action of the return spring 51, the bidirectional driven plate 7 rises and resets in a wave-like left and right yawing manner and drives the arched filter screen 3 to gradually change from a downward concave posture to an upward convex posture. During this period, the remaining rice material on the upper surface of the arched filter screen 3 will also be "shaken" and dropped again. Subsequently, some larger impurities such as stones will be pushed up by the arched filter screen 3 during its upward reset. Finally, the upper surface of the arched filter screen 3 will reset to form an arch top, so that the lifted impurities will roll from the center of the arch top to the edge. Moreover, the upper eaves of the hopper body 2 are also inclined in a matching manner with the arch degree of the arched filter screen 3. Therefore, the rolled impurities will also smoothly drop along the inclined upper eaves of the hopper body 2 into the receiving ring 21 for collection.
[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A color sorter hopper for rice processing, comprising a color sorter body (1) and a hopper body (2) fixedly mounted above the color sorter body (1), characterized in that: It also includes an arched filter (3) fixed above the material distribution hopper body (2) and adapted to fall down and screen based on the weight of the rice material and lift up to filter impurities, and a force unloading frame (5) evenly suspended and fixed inside the material distribution hopper body (2) and providing stable support and reset for the arched filter (3); The force unloading frame (5) is elastically provided with a bidirectional driven plate (7) which is connected to the arched filter screen (3) and drives the arched filter screen (3) to swing horizontally in a wave-like manner when falling to accelerate the screening of rice materials.
2. A rice processing color sorter hopper according to claim 1, characterized in that: The material separation hopper body (2) is designed to be trumpet-shaped, being wide at the top and narrow at the bottom, and the lower end of the material separation hopper body (2) matches and corresponds to the feed opening at the upper end of the color sorter body (1).
3. The rice processing color sorter hopper according to claim 1, characterized in that: A cross bracket (4) is fixed to the inner wall of the material distribution hopper body (2), and the lower ends of a plurality of force unloading frames (5) are evenly fixed to the upper surface of the cross bracket (4).
4. The rice processing color sorter hopper according to claim 1, characterized in that: The arched filter (3) is made of elastic material and the filter holes will become larger as it is stretched; The edge of the arched filter screen (3) is bent at 90 degrees, and the upper edge of the material distribution hopper body (2) is provided with an annular cavity groove that is plugged and matched with the bent edge of the arched filter screen (3); A plurality of screws for tightening the bent edges of the arched filter screen (3) are inserted at equal angles into the upper edge of the distribution hopper body (2).
5. The rice processing color sorter hopper according to claim 1, characterized in that: The upper end of the force unloading frame (5) slides through the lower end of the pressure drop rod (6) installed thereon, and the pressure drop rod (6) is a hollow arrangement that passes through from top to bottom; A bidirectional driven rod (61) is slidably arranged in the central hole of the push-down rod (6).
6. A rice processing color sorter hopper according to claim 5, characterized in that: A cross bar for vertically limiting the bidirectional driven rod (61) is symmetrically fixed in the hollow cavity of the pressure drop rod (6), and the bidirectional driven rod (61) forms a horizontal sliding connection structure with the pressure drop rod (6) through the cross bar.
7. A rice processing color sorter hopper according to claim 6, characterized in that: The upper end of the bidirectional driven rod (61) passes through the pressure-dropping rod (6) and is fixedly connected to the lower surface of the arched filter (3), and the lower end of the bidirectional driven rod (61) is fixedly connected to the upper surface of the bidirectional driven plate (7); A shielding plate is fixed to the upper end of the bidirectional driven rod (61) located outside the pressing rod (6) to prevent rice from falling into the central hole of the pressing rod (6).
8. The rice processing color sorter hopper according to claim 1, characterized in that: A return spring (51) is arranged inside the unloading frame (5), and the upper end of the return spring (51) is welded to the lower surface of the bidirectional driven plate (7), and the lower end of the return spring (51) is fixed to the inner wall of the unloading frame (5).
9. The rice processing color sorter hopper according to claim 1, characterized in that: The two ends of the bidirectional driven plate (7) are designed with semicircular cross-sections, and the inner walls of both sides of the force unloading frame (5) are provided with continuous wave grooves that are engaged and matched with the semicircular ends of the bidirectional driven plate (7); The continuous wave grooves on both sides of the force unloading frame (5) are arranged in an up-and-down staggered manner; The concave and convex parts adjacent to the continuous wave groove are provided with transition arc surfaces for the end of the force unloading frame (5) to slide down smoothly.
10. The rice processing color sorter hopper according to claim 1, characterized in that: A material receiving ring (21) with an open upper end is fixed around the outer wall of the material distribution hopper body (2).