Impurity and stone removing device for rice processing

Abstract

The utility model relates to an impurity and stone removing device for rice processing, which comprises a specific gravity stone removing machine body, the top of the specific gravity stone removing machine body is provided with a feeding port, the front side of the specific gravity stone removing machine body is provided with a discharge port, a sliding cavity penetrating through the discharge port is arranged in the specific gravity stone removing machine body, a frame plate is slidably mounted in the sliding cavity, and a plurality of filter screens are arranged on the frame plate at intervals in the vertical direction. And a driving mechanism is arranged on the side part of the specific gravity stoner body and is used for driving the frame plate to slide up and down in the sliding cavity for adjustment, so that the filter screens at different positions are adjusted to be aligned with the discharge opening. The filter screens with different mesh numbers are all arranged in the specific gravity stoner body and can be freely selected and switched, an additional placing frame does not need to be arranged, input cost is saved, in addition, when the filter screens are switched, the filter screens do not need to be transferred back and forth between the specific gravity stoner body and the placing frame, switching operation is convenient and fast, the overall structural layout is reasonable, and the specific gravity stoner is suitable for large-scale popularization and application. The practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to a device for removing impurities and stones used in rice processing. Background Art

[0002] During the rice processing, a gravity stoner is often used to remove stones and impurities from the rice. Its working principle is to use the difference between the specific gravity and suspension speed of different materials to separate impurities and stones from the rice, and a layer of filter will be set at the final sorting outlet to prevent the separated stones and impurities. Different types of rice have different sizes, and the gravity stoner needs to replace the filter with different mesh sizes according to the different types of rice. Common filters are fixed inside the gravity stoner. If you want to replace them, you need to remove the entire outer shell of the machine, which is very inconvenient.

[0003] Referring to the Chinese patent with the authorization announcement number CN219850580U, a device for removing impurities and stones for rice processing is disclosed. The device achieves the effect of replacing the filter by setting a replacement mechanism in a specific gravity stone remover, and then the appropriate filter can be replaced according to the size of the rice.

[0004] However, the above device needs to be equipped with multiple filters with different mesh sizes to cope with rice grains of different sizes. The placement of multiple filters not only requires the provision of additional placement racks, but also when replacing the filters, the filter on the specific gravity stoner needs to be removed first and transferred to the placement rack, and then the target filter needs to be removed from the placement rack and then transferred and installed on the specific gravity stoner. Transferring the filters back and forth is time-consuming and laborious, and the replacement steps are cumbersome and inconvenient. Utility Model Content

[0005] The utility model aims to provide a device for removing impurities and stones for rice processing, which is convenient for selecting and switching the filter screen, and effectively solves the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0007] A device for removing impurities and stones for rice processing comprises a gravity stoner body, wherein the top of the gravity stoner body is provided with a loading port, the front side is provided with a discharge port, a sliding cavity penetrating the discharge port is provided in the gravity stoner body, a frame plate is slidably installed in the sliding cavity, a plurality of filter screens are arranged at intervals on the frame plate along the vertical direction, and a driving mechanism is provided on the side of the gravity stoner body, the driving mechanism is used to drive the frame plate to slide up and down in the sliding cavity to align the filter screens adjusted to different positions with the discharge port.

[0008] It can be seen that by integrating the vertical array of filters with different mesh sizes on the frame plate, and by adjusting the frame plate up and down, the filters at different positions are driven to align with the discharge port, so as to achieve the selection and switching effect of the filter. Compared with the prior art, the device arranges the filters with different mesh sizes in the main body of the gravity stoner, and there is no need to set up an additional placement rack, thus saving investment costs. In addition, when switching the filter, there is no need to transfer the filter back and forth between the main body of the gravity stoner and the placement rack, and the switching operation is convenient and quick, the overall structural layout is reasonable, and the practicability is high.

[0009] Furthermore, a plurality of installation grooves with two ends penetrating therethrough are arranged at intervals along the vertical direction on the frame plate, and the filter screens are embedded and installed in the installation grooves one by one, and the filter screens are arranged at intervals from top to bottom in a manner of decreasing mesh size.

[0010] The filters are embedded one by one in the installation slots of the vertical array to realize the array arrangement of the filters. In addition, the filters are arranged regularly with the mesh size decreasing as they go down, which makes it convenient for the staff to choose and switch the filter with the appropriate mesh size.

[0011] Furthermore, the driving mechanism includes a guide seat, a threaded rod, a nut seat, a connecting rod, a connecting arm and an adjustment mechanism. The guide seat is fixed to the side of the specific gravity stone removing machine body and extends vertically. The guide seat is provided with a vertically extending slide groove. The threaded rod is rotatably installed in the slide groove. The nut seat is limitedly slidably installed in the slide groove and is threadedly mounted on the threaded rod. The side of the specific gravity stone removing machine body is provided with a through groove that extends vertically and communicates with the sliding cavity. The connecting rod is fixed to the side of the frame plate and extends through the through groove to the outer side of the specific gravity stone removing machine body. The connecting rod is slidably connected to the inner wall of the through groove. One end of the connecting arm is fixed to the connecting rod, and the other end is fixed to the nut seat. The adjustment mechanism is arranged on the side of the specific gravity stone removing machine body, and is used to drive the threaded rod to perform forward or reverse rotation adjustment.

[0012] The threaded rod is driven to rotate forward and reversely by operating the adjustment mechanism. The rotating threaded rod drives the nut seat to slide up and down in the slide groove. Under the connection of the connecting rod and the connecting arm, the frame plate is driven to rise and fall synchronously in the sliding cavity, providing drive for the lifting and lowering adjustment of the frame plate.

[0013] Furthermore, the adjustment mechanism includes a worm, a worm wheel and a pair of brackets, the two brackets are fixed to the sides of the specific gravity stone remover body, the worm is rotatably mounted on the two brackets, and the worm wheel is fixedly sleeved on the bottom end of the threaded rod and correspondingly meshed with the worm.

[0014] By rotating the adjusting worm forward and backward, the worm can engage with the worm wheel and drive the threaded rod to rotate forward and backward, thereby providing drive for the rotation adjustment of the threaded rod. In addition, the one-way transmission of the worm and the worm wheel can achieve a self-locking effect. When the adjusting worm is not rotated, the height of the frame plate can be kept locked to prevent the frame plate from falling downward in the sliding cavity due to gravity, which is conducive to the stability of the filter arrangement.

[0015] Furthermore, a vertically extending visual window is provided on the front side of the specific gravity stone removing machine body at one side of the discharge port, and a number of identification pieces are arranged at intervals from top to bottom on the front surface of the frame plate, each identification piece corresponds to the position of the filter screen one by one, and the color of each identification piece is different. An indicator piece is provided on the front surface of the specific gravity stone removing machine body at one side of the discharge port, and the position of the identification piece on the front surface of the frame plate can be observed through the visual window. When the position of the identification piece is aligned with the position of the indicator piece, the filter screen corresponding to the position of the identification piece is aligned with the position of the discharge port.

[0016] By corresponding identification pieces of different colors to the positions of the filters one by one, the staff can distinguish filters of different mesh sizes according to the identification pieces of different colors. In addition, when the frame is raised or lowered, when the identification piece at a certain position is aligned with the indicator piece, it means that the filter corresponding to the position of the identification piece is aligned with the position of the discharge port, which has a positioning effect and ensures that the filter can be aligned with the discharge port when the filter is switched, so as to carry out normal filtering work.

[0017] Furthermore, a material guide plate connected to the material discharge port is provided on the front side of the specific gravity stone removing machine body, the material guide plate is arranged obliquely, and side baffles are respectively installed on both sides of the upper surface of the material guide plate.

[0018] The rice discharged from the discharge port finally falls on the guide plate, which can transport the rice downward into the container. Side baffles arranged on both sides of the guide plate can prevent the rice from sliding off the guide plate.

[0019] Furthermore, a rocker is installed at one end of the worm, and the handle surface of the rocker is provided with anti-slip grooves.

[0020] By holding the handle and shaking the crank, it is convenient to apply force to rotate and adjust the worm. In addition, anti-slip grooves are provided on the handle to increase the friction between the handle and the hand to avoid slipping and falling out of the hand when shaking.

[0021] Furthermore, universal wheels are respectively installed at the four top corners of the bottom of the gravity stone removing machine body, and the universal wheels have a braking effect.

[0022] The universal wheel facilitates the transfer of the position of the entire device, thereby improving the overall flexibility of the device. When the universal wheel is braked, the stability of the device during operation can be ensured.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0024] 1. The utility model device integrates a vertical array of filters with different mesh sizes on a frame plate, and drives the filters at different positions to align with the discharge port by adjusting the frame plate up and down, so as to achieve the selection and switching effect of the filter. Compared with the prior art, the utility model device arranges the filters with different mesh sizes in the body of the specific gravity stoner, and there is no need to set up an additional placement rack, thus saving investment costs. In addition, when switching the filter, there is no need to transfer the filter back and forth between the body of the specific gravity stoner and the placement rack, and the switching operation is convenient and quick, the overall structural layout is reasonable, and the practicability is high.

[0025] 2. The utility model utilizes the one-way transmission of the worm and the worm wheel to achieve a self-locking effect. When the worm is not screwed to adjust, the height of the frame plate can be kept locked to prevent the frame plate from falling downward in the sliding cavity due to gravity, which helps to ensure the stability of the filter arrangement.

[0026] 3. The utility model uses identification pieces of different colors to correspond to the positions of the filters one by one, which makes it convenient for the staff to distinguish filters of different mesh sizes according to the identification pieces of different colors. In addition, when the frame is raised and lowered, when the identification piece at a certain position is aligned with the indicator piece, it means that the filter corresponding to the position of the identification piece is aligned with the position of the discharge port, which has a positioning effect and ensures that the filter can be aligned with the discharge port when the filter is switched, so as to carry out normal filtering work. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is one of the three-dimensional schematic diagrams of the overall structure of the utility model;

[0028] Figure 2 This is the second three-dimensional schematic diagram of the overall structure of the utility model;

[0029] Figure 3 It is a cross-sectional schematic diagram of the specific gravity stone removing machine body in the utility model;

[0030] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0031] Figure 5 It is a detailed structural diagram of the driving mechanism in the utility model;

[0032] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0033] In the figure: 1. gravity stone remover body; 101. feeding port; 102. discharge port; 103. sliding chamber; 104. universal wheel; 2. frame plate; 21. mounting slot; 3. filter screen; 4. driving mechanism; 401. threading slot; 41. guide seat; 411. slide slot; 42. threaded rod; 43. nut seat; 44. connecting rod; 45. connecting arm; 46. adjusting mechanism; 461. bracket; 462. worm; 4621. rocker; 46211. handle; 463. worm wheel; 5. visual window; 51. identification sheet; 52. indicator sheet; 6. guide plate; 61. side baffle. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model.

[0036] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0037] See also Figure 1-Figure 6The utility model provides a device for removing impurities and stones for rice processing, including a specific gravity stone removing machine body 1, the top of the specific gravity stone removing machine body 1 is provided with a loading port 101, the front side is provided with a discharge port 102, the specific gravity stone removing machine body 1 is provided with a sliding cavity 103 penetrating the discharge port 102, a frame plate 2 is slidably installed in the sliding cavity 103, and a plurality of filter screens 3 are arranged at intervals on the frame plate 2 along the vertical direction, and a driving mechanism 4 is provided on the side of the specific gravity stone removing machine body 1, and the driving mechanism 4 is used to drive the frame plate 2 to slide up and down in the sliding cavity 103 to align the filter screens 3 adjusted to different positions with the discharge port 102.

[0038] In the rice processing process, when the device is used to remove impurities and stones from rice, the rice is put into the gravity stone removing machine body 1 through the discharge port 102, and the stones and impurities in the rice can be sorted out through the operation of the gravity stone removing machine body 1, and finally the rice is discharged from the discharge port 102, and the stones and impurities are filtered out by the filter screen 3 and discharged through the impurity discharge port, thereby achieving the impurity and stone removal of rice.

[0039] Different types of rice have different sizes and need to be replaced with filter screens 3 of different mesh sizes. By operating the driving mechanism 4, the frame plate 2 is driven to slide up and down in the sliding cavity 103, thereby driving the filter screens 3 at different positions to align with the discharge port 102, thereby achieving the selection and switching effect of the filter screen 3.

[0040] The device integrates a vertical array of filters 3 with different mesh sizes on a frame plate 2, and drives the filters 3 at different positions to align with the discharge port 102 by adjusting the frame plate 2 up and down, thereby achieving a selection and switching effect of the filter 3. Compared with the prior art, the device arranges the filter 3 in the gravity stone removal machine body 1, and there is no need to set up an additional placement rack, thereby saving investment costs. In addition, when switching the filter 3, there is no need to transfer the filter 3 back and forth between the gravity stone removal machine body 1 and the placement rack, and the switching operation is convenient and quick, the overall structural layout is reasonable, and the practicability is high.

[0041] Specifically, a number of mounting grooves 21 with through ends are arranged at intervals along the vertical direction on the frame plate 2, and each filter screen 3 is embedded and installed in each mounting groove 21 one by one. Each filter screen 3 is arranged at intervals in a manner of decreasing mesh number from top to bottom, and the filter screens 3 are embedded one by one in the mounting grooves 21 of the vertical array to realize the array arrangement of the filter screens 3. In addition, the filter screens 3 are arranged regularly in a manner that the mesh number decreases as they go down, so that the staff can choose to switch the filter screen 3 with an appropriate mesh number.

[0042] Specifically, the driving mechanism 4 includes a guide seat 41, a threaded rod 42, a nut seat 43, a connecting rod 44, a connecting arm 45 and an adjusting mechanism 46. The guide seat 41 is fixed to the side of the specific gravity stone removing machine body 1 and extends vertically. A vertically extending slide groove 411 is provided on the guide seat 41. The threaded rod 42 is rotatably installed in the slide groove 411. The nut seat 43 is limitedly slidably installed in the slide groove 411 and is threadedly mounted on the threaded rod 42. A vertically extending through groove 401 communicating with the sliding cavity 103 is provided on the side of the specific gravity stone removing machine body 1. The connecting rod 44 is fixed to the side of the frame plate 2 and extends through the through groove 401 to On the outer side of the gravity stone removing machine body 1, the connecting rod 44 is slidably connected to the inner wall of the guide groove 401, one end of the connecting arm 45 is fixed to the connecting rod 44, and the other end is fixed to the nut seat 43, and the adjustment mechanism 46 is arranged on the side of the gravity stone removing machine body 1, and is used to drive the threaded rod 42 to perform forward or reverse rotation adjustment. The threaded rod 42 is driven to rotate forward and reverse by operating the adjustment mechanism 46. The rotating threaded rod 42 thread drives the nut seat 43 to slide up and down in the slide groove 411, and under the connection action of the connecting rod 44 and the connecting arm 45, the frame plate 2 is driven to rise and fall synchronously in the sliding cavity 103, providing drive for the lifting and lowering adjustment of the frame plate 2.

[0043] Specifically, the adjustment mechanism 46 includes a worm 462, a worm wheel 463 and a pair of brackets 461. The two brackets 461 are fixed to the side of the specific gravity stone removing machine body 1. The worm 462 is rotatably mounted on the two brackets 461. The worm wheel 463 is fixedly sleeved on the bottom end of the threaded rod 42 and meshes with the worm 462 accordingly. By screwing the worm 462 forward and backward, the worm 462 can mesh with the worm wheel 463 and drive the threaded rod 42 to rotate forward and backward, thereby providing drive for the rotation adjustment of the threaded rod 42. In addition, the one-way transmission of the worm 462 and the worm wheel 463 has a self-locking effect. When the worm 462 is not screwed, the height of the frame plate 2 can be kept locked to prevent the frame plate 2 from falling downward in the sliding cavity 103 due to gravity, which helps to stabilize the filter screen 3 when it is arranged.

[0044] Specifically, a vertically extending visual window 5 is provided on the front side of the specific gravity stone removing machine body 1 at one side of the discharge port 102, and a plurality of identification pieces 51 are arranged at intervals from top to bottom on the front side surface of the frame plate 2, each identification piece 51 corresponds to the position of the filter screen 3 one by one, and the color of each identification piece 51 is different. An indicator piece 52 is provided on the front side surface of the specific gravity stone removing machine body 1 at one side of the discharge port 102, and the position of the identification piece 51 on the front side surface of the frame plate 2 can be observed through the visual window 5. When the position of the identification piece 51 is aligned with the position of the indicator piece 52, the position of the identification piece 51 is aligned with the position of the indicator piece 52. The corresponding filter screen 3 is aligned with the position of the discharge port 102, and the identification pieces 51 of different colors correspond to the positions of the filter screens 3 one by one, which makes it convenient for the staff to distinguish the filter screens 3 of different mesh sizes according to the identification pieces 51 of different colors. In addition, when the frame 2 is raised and lowered, when the identification piece 51 at a certain place is aligned with the indicator piece 52, it means that the filter screen 3 corresponding to the position of the identification piece 51 is aligned with the position of the discharge port 102, which has a positioning effect, ensuring that when the filter screen 3 is selected to be switched, the filter screen 3 can be aligned with the discharge port 102, so as to carry out normal filtering work.

[0045] Specifically, a guide plate 6 connected to a discharge port 102 is provided on the front side of the gravity stoner body 1. The guide plate 6 is arranged at an angle, and side baffles 61 are respectively installed on both sides of the upper surface of the guide plate 6. The rice discharged from the discharge port 102 finally falls on the guide plate 6, and the guide plate 6 can transport the rice downward into the container. The side baffles 61 arranged on both sides of the guide plate 6 can prevent the rice from sliding off the two sides of the guide plate 6.

[0046] Specifically, a rocking plate 4621 is installed at one end of the worm 462, and the surface of the handle 46211 of the rocking plate 4621 is provided with anti-slip grooves. By holding the handle 46211 and shaking the rocking plate 4621, it is convenient to exert force to rotate and adjust the worm 462. In addition, the anti-slip grooves are provided on the handle 46211 to increase the friction between the handle 46211 and the hand, thereby avoiding slipping and falling out of the hand when shaking.

[0047] Specifically, universal wheels 104 are respectively installed at the four top corners of the bottom of the gravity stone removing machine body 1. The universal wheels 104 have a braking effect. The universal wheels 104 are used to facilitate the position transfer of the entire device, thereby improving the overall flexibility of the device. When the universal wheels 104 are braked, the stability of the device during operation can be guaranteed.

[0048] In addition, how the gravity stone removing machine body 1 in the present application separates impurities and stones from rice belongs to the prior art and will not be described in detail in the present application.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A device for removing impurities and stones for rice processing, comprising a specific gravity stone removing machine body (1), wherein the specific gravity stone removing machine body (1) has a feeding port (101) at the top and a discharge port (102) at the front, characterized in that: The gravity stone removing machine body (1) is provided with a sliding cavity (103) penetrating the discharge port (102), a frame plate (2) is slidably mounted in the sliding cavity (103), and a plurality of filter screens (3) are arranged at intervals along the vertical direction on the frame plate (2); A driving mechanism (4) is provided on the side of the gravity stone removing machine body (1), and the driving mechanism (4) is used to drive the frame plate (2) to slide up and down in the sliding cavity (103) to align the filter screen (3) adjusted to different positions with the discharge port (102).

2. The impurity and stone removal device for rice processing according to claim 1, characterized in that: A plurality of installation grooves (21) with two ends through are arranged at intervals on the frame plate (2) in the vertical direction, and each of the filter screens (3) is embedded and installed in each of the installation grooves (21) in a one-to-one correspondence; The filter screens (3) are arranged at intervals from top to bottom in a manner of decreasing mesh size.

3. The impurity and stone removal device for rice processing according to claim 1, characterized in that: The driving mechanism (4) comprises a guide seat (41), a threaded rod (42), a nut seat (43), a connecting rod (44), a connecting arm (45) and an adjusting mechanism (46); The guide seat (41) is fixed to the side of the specific gravity stone removing machine body (1) and extends vertically, and a vertically extending slide groove (411) is provided on the guide seat (41); The threaded rod (42) is rotatably mounted in the slide groove (411), and the nut seat (43) is limitedly slidably mounted in the slide groove (411) and is thread-matchedly sleeved on the threaded rod (42); A guide groove (401) extending vertically and communicating with the sliding cavity (103) is provided on the side of the specific gravity stone removing machine body (1); the connecting rod (44) is fixed to the side of the frame plate (2) and extends through the guide groove (401) to the outer side of the specific gravity stone removing machine body (1); the connecting rod (44) is slidably connected to the inner wall of the guide groove (401); One end of the connecting arm (45) is fixed to the connecting rod (44), and the other end is fixed to the nut seat (43); The adjustment mechanism (46) is arranged on the side of the specific gravity stone removing machine body (1) and is used to drive the threaded rod (42) to perform forward or reverse rotation adjustment.

4. The impurity and stone removal device for rice processing according to claim 3, characterized in that: The adjusting mechanism (46) comprises a worm (462), a worm wheel (463) and a pair of brackets (461); The two brackets (461) are fixed on the side of the specific gravity stone removing machine body (1), and the worm (462) is rotatably mounted on the two brackets (461); The worm wheel (463) is fixedly sleeved on the bottom end of the threaded rod (42) and correspondingly meshes with the worm (462).

5. The impurity and stone removal device for rice processing according to claim 1, characterized in that: A vertically extending visual window (5) is provided on the front side of the specific gravity stone removing machine body (1) and located on one side of the discharge port (102); A plurality of identification sheets (51) are arranged at intervals from top to bottom on the front side surface of the frame plate (2), each identification sheet (51) corresponds to the position of the filter screen (3) one by one, and each identification sheet (51) has a different color. An indicator sheet (52) is provided on the front side surface of the specific gravity stone removal machine body (1) at one side of the discharge port (102); The position of the identification sheet (51) on the front surface of the frame plate (2) can be observed through the visual window (5); when the position of the identification sheet (51) is aligned with the position of the indicator sheet (52), the filter screen (3) corresponding to the position of the identification sheet (51) is aligned with the position of the discharge port (102).

6. The impurity and stone removal device for rice processing according to claim 1, characterized in that: A material guide plate (6) connected to the material discharge port (102) is provided on the front side of the specific gravity stone removal machine body (1), and the material guide plate (6) is arranged in an inclined manner; Side baffles (61) are respectively installed on both sides of the upper surface of the material guide plate (6).

7. The impurity and stone removal device for rice processing according to claim 4, characterized in that: A rocking plate (4621) is installed at one end of the worm (462), and a surface of a handle (46211) of the rocking plate (4621) is provided with anti-slip grooves.

8. The impurity and stone removal device for rice processing according to claim 1, characterized in that: Universal wheels (104) are respectively installed at the four top corners of the bottom of the specific gravity stone removing machine body (1), and the universal wheels (104) have a braking effect.

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