Cloth bag dust removal mechanism of rice husking machine

Abstract

The invention relates to the technical field of rice husking machines, and discloses a cloth bag dust removal mechanism of a rice husking machine, the cloth bag dust removal mechanism comprises a fixed pipeline, an air outlet pipeline is arranged on the fixed pipeline, a cloth bag is arranged on the air outlet pipeline, a sweeping strip is slidably connected in the fixed pipeline, and a moving strip is arranged on the sweeping strip; a moving hole for the moving strip to pass through is formed in the fixed pipeline; when the moving strip slides in the moving hole, the sweeping strip can push dust to the air outlet pipeline, a worker slides the moving strip, the moving strip drives the sweeping strip to slide, the sweeping strip can drive the dust to be pushed to the air outlet pipeline, and sweeping of the dust by the sweeping strip is achieved; according to the dust removal mechanism, dust in the fixed pipeline can be swept into the air outlet pipeline, interference of the dust on airflow is reduced, and therefore the airflow in the fixed pipeline can pass through more smoothly, and the dust removal efficiency of the dust removal mechanism is improved.

Description

Technical Field

[0001] The present application relates to the technical field of rice milling machines, and in particular to a bag dust removal mechanism of a rice milling machine. Background Art

[0002] A rice mill is a mechanical equipment used to process rice. It is mainly used to husk brown rice, grind it into rice grains, and separate impurities such as rice bran. The rice mill uses wind and negative pressure vacuum to remove dust from rice grains. The dust removal mechanism needs to filter the dust in the airflow so that it can be discharged directly.

[0003] In the related technology, the dust removal mechanism includes a fixed pipe, which allows air to pass through. The fixed pipe is provided with an air inlet, and multiple air outlet pipes are provided on the fixed pipe. Cloth bags are provided on the air outlet pipes, through which air can pass. The end of the cloth bag away from the fixed pipe is tied and closed by a rope.

[0004] Since there is usually a large amount of dust in the air flow, the dust may adhere to the inner wall of the fixed pipe, causing dust accumulation in the fixed pipe, making it difficult for the air flow to enter the air outlet duct, affecting the dust removal efficiency of the dust removal mechanism. Summary of the invention

[0005] In order to improve the problem of dust accumulation in fixed pipes, the present application provides a bag dust removal mechanism for a rice mill.

[0006] The present application provides a bag dust removal mechanism for a rice mill, which adopts the following technical solution: A bag dust removal mechanism for a rice mill comprises a fixed pipe, an air outlet pipe is arranged on the fixed pipe, a bag is arranged on the air outlet pipe, a cleaning bar is slidably connected in the fixed pipe, a moving bar is arranged on the cleaning bar, and a moving hole for the moving bar to pass through is opened on the fixed pipe; when the moving bar slides in the moving hole, the cleaning bar can push dust to the air outlet pipe.

[0007] By adopting the above technical solution, the staff slides the moving bar to let the moving bar drive the cleaning bar to slide, so that the cleaning bar can drive the dust to the air outlet duct, and the cleaning bar can clean the dust, so that the dust in the fixed duct can be cleaned into the air outlet duct, reducing the interference of dust on the airflow, thereby allowing the airflow in the fixed duct to pass more smoothly, thereby improving the dust removal efficiency of the dust removal mechanism.

[0008] Optionally, the cloth bag is provided with a mounting ring, the mounting ring is provided with a mounting hole, the air outlet duct is provided with a mounting spring, the mounting spring is provided with a mounting strip for inserting into the mounting hole, and the mounting spring drives the mounting strip to be inserted into the mounting hole; when the mounting strip is inserted into the mounting hole, the mounting ring is fixed to the air outlet duct.

[0009] By adopting the above technical solution, the staff presses the installation bar to allow the installation ring to be mounted on the air outlet duct. At this time, the installation spring drives the installation bar to move, allowing the installation bar to be inserted into the installation hole. The installation bar limits the installation ring, so that the installation ring and the air outlet duct can be fixed to each other, so that the cloth bag can be stably located in the air outlet duct, reducing the possibility of separation between the air outlet duct and the cloth bag.

[0010] Optionally, an operating ring is rotatably connected to the mounting ring, an operating hole is opened on the operating ring for inserting the mounting strip, and an operating strip is slidably connected in the operating hole; when the operating strip is inserted into the mounting hole, the mounting strip can be detached from the mounting hole.

[0011] By adopting the above technical solution, the staff rotates the operating ring to align the operating hole with the mounting hole. At this time, the mounting spring drives the mounting bar to be inserted into the operating hole. At this time, the operating bar protrudes from the operating ring. The staff can know whether the mounting ring is fixed on the air outlet duct by observing whether the operating bar protrudes from the operating ring, thereby reducing the possibility that the cloth bag is not fixed in the air outlet duct, allowing the cloth bag to be more stably fixed in the air outlet duct.

[0012] Optionally, a receiving groove connected to the movable hole is opened in the fixed pipe, and the cleaning strip is inserted into the receiving groove; when the cleaning strip is located in the receiving groove, the cleaning strip does not protrude from the inner wall of the fixed pipe.

[0013] By adopting the above technical solution, the cleaning strip is located in the receiving groove, so that the cleaning strip will not be located in the inner wall of the fixed pipe, so that the cleaning strip will not block the dust, thereby preventing the dust from accumulating in the fixed pipe due to hitting the cleaning strip.

[0014] Optionally, a moving block is provided on the moving bar, a moving spring is provided on the moving block, the moving spring drives the cleaning bar to protrude from the receiving groove, and an operating groove is provided on the moving bar for inserting the operating strip; when the operating strip is inserted into the operating groove, the cleaning bar is located in the receiving groove.

[0015] By adopting the above technical solution, a moving spring is arranged on the moving block, so that the moving spring drives the cleaning bar to move, and the cleaning bar protrudes from the receiving groove, so that the cleaning bar can stably clean the inner wall of the fixed pipe; the operating bar is inserted into the operating groove, so that the operating bar limits the moving bar, and the moving spring is prevented from driving the moving bar to move, so that the cleaning bar can be stably located in the receiving groove; when the mounting ring is fixed in the air outlet duct, the operating bar protrudes from the operating ring, and the operating bar can limit the moving bar at this time. When fixing the moving bar, the staff can check whether the mounting ring is fixed, so as to avoid the situation where the mounting ring is not firmly fixed.

[0016] Optionally, a sliding spring is provided in the moving hole, the moving bar is provided on the sliding spring, and the sliding spring drives the moving bar to move toward one side of the air outlet duct.

[0017] By adopting the above technical solution, a sliding spring is set on the moving bar, and the sliding spring drives the moving bar to move toward one side of the air outlet duct. The sliding spring can drive the cleaning bar to clean the inner wall of the fixed duct. The staff does not need to manually move the cleaning bar, thereby reducing the staff's operating steps.

[0018] Optionally, an operating plate is provided on the operating ring, an operating slope is provided on the operating plate, the distance between the operating slope and the air outlet duct gradually increases in the vertical downward direction, and the operating slope can be located on the sliding path of the moving bar; when the mounting ring is installed on the air outlet duct, the moving bar abuts against the side of the moving hole away from the air outlet duct.

[0019] By adopting the above technical solution, when the staff sets the installation ring sleeve on the air outlet duct, the operating inclined surface is located on the sliding path of the moving bar, so that the operating inclined surface can push the moving bar to move, thereby eliminating the need for the staff to manually reset the moving bar; since the operating inclined surface is arranged on the operating panel, and the operating panel is arranged on the operating ring, the staff can rotate the operating ring so that the operating inclined surface will not be located on the sliding path of the moving bar. At this time, people release the limit on the moving bar, and the sliding spring can drive the moving bar to move, so that the cleaning bar can clean the dust.

[0020] Optionally, a stop spring is provided on the air outlet duct, a stop strip is provided on the stop spring, a stop groove for inserting the stop strip is opened on the mounting ring, and the stop spring drives the stop strip to be inserted into the stop groove; when the stop strip is located in the stop groove, the mounting ring is fixed in the air outlet duct.

[0021] By adopting the above technical solution, the stop strip is driven to move by the stop spring, and the stop strip is inserted into the stop groove, so that the stop strip can limit the movement of the mounting ring, thereby preventing the mounting ring from sliding in the air outlet duct, and further enhancing the reliability of the mounting ring.

[0022] Optionally, a stop bar is provided on the stop bar, and the stop bar is located on the sliding path of the moving bar. When the cleaning bar completes cleaning, the stop bar can be separated from the stop groove.

[0023] By adopting the above technical solution, when the cleaning bar is cleaning the dust, the moving bar moves. Since the stop rod is located on the sliding path of the moving bar, the moving bar can drive the stop rod to move, and the stop rod drives the stop bar to move, so that the stop bar is disengaged from the stop groove, and the stop bar releases the limit on the mounting ring, so that the staff does not need to manually move the stop bar. During the cleaning process, the stop bar can unlock the mounting ring. At the same time, the mounting ring is still located in the air outlet duct, so that the dust fallen in the air outlet duct can still be located in the cloth bag, avoiding the problem of the staff needing to clean the fallen dust later.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The staff slides the moving bar to drive the cleaning bar to slide, so that the cleaning bar can drive the dust to the air outlet duct, so that the cleaning bar can clean the dust, and the dust in the fixed duct can be cleaned into the air outlet duct, reducing the interference of dust on the airflow, so that the airflow in the fixed duct can pass more smoothly, so as to improve the dust removal efficiency of the dust removal mechanism.

[0025] 2. The staff turns the operating ring to align the operating hole with the mounting hole. At this time, the installation spring drives the mounting bar to be inserted into the operating hole. At this time, the operating bar protrudes from the operating ring. The staff can observe whether the operating bar protrudes from the operating ring to know whether the mounting ring is fixed on the air outlet duct, thereby reducing the possibility that the bag is not fixed in the air outlet duct and allowing the bag to be fixed in the air outlet duct more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 is along Figure 1 Partial cross-sectional view along line AA; Figure 3 yes Figure 2 A magnified schematic diagram of part B; Figure 4 yes Figure 2 A magnified schematic diagram of part C; Figure 5 is a structural schematic diagram highlighting the operating slope in an embodiment of the present application; Figure 6 It is an exploded schematic diagram highlighting the card slot in the embodiment of the present application.

[0027] Figure numerals: 1. fixed pipe; 11. air inlet; 12. air outlet pipe; 121. mounting groove; 122. mounting spring; 123. mounting strip; 13. moving hole; 131. moving strip; 132. moving block; 133. moving spring; 134. operating groove; 14. cleaning strip; 141. groove; 142. accordion board; 143. accordion cover; 15. accommodating groove; 16. sliding groove; 161. sliding spring; 17. accommodating groove; 171. stop spring; 172. stop strip; 173. stop rod; 2. mounting ring; 21. cloth bag; 22. mounting hole; 23. slot; 24. stop groove; 3. operating ring; 31. operating hole; 311. operating strip; 32. operating plate; 321. operating inclined surface. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-6 This application is described in further detail.

[0029] This embodiment discloses a bag dust removal mechanism for a rice mill. Figure 1 A bag dust removal mechanism for a rice mill comprises a fixed pipe 1, an air inlet 11 is provided on the fixed pipe 1, and the air inlet 11 is for air flow to pass through. A plurality of air outlet pipes 12 are fixedly connected to the surface of the fixed pipe 1, and the plurality of air outlet pipes 12 are arranged in an array along the length direction of the fixed pipe 1.

[0030] Reference Figure 2 , the air outlet duct 12 is provided with a mounting ring 2, and a cloth bag 21 is fixedly connected to the mounting ring 2. When the mounting ring 2 is mounted on the air outlet duct 12, the cloth bag 21 allows air to pass through. One end of the cloth bag 21 is fixedly connected to the mounting ring 2, and the other end of the cloth bag 21 is tied with a rope. When the cloth bag 21 is filled with dust, the staff unties the rope to let the dust in the cloth bag 21 fall, and then tightens the opening with the rope.

[0031] Reference Figure 2 and Figure 3 The outer wall of the air outlet duct 12 is provided with a mounting groove 121, the bottom wall of the mounting groove 121 is fixedly connected with a mounting spring 122, and the surface of the mounting spring 122 away from the bottom wall of the mounting groove 121 is fixedly connected with a mounting strip 123. The surface of the mounting ring 2 is provided with a mounting hole 22 for the mounting strip 123 to pass through.

[0032] Reference Figure 2 and Figure 3The outer surface of the mounting ring 2 is rotatably connected with the operating ring 3, and the outer surface of the operating ring 3 is provided with an operating hole 31 for the mounting strip 123 to be inserted, and the operating strip 311 is slidably connected in the operating hole 31. When the mounting strip 123 is inserted into the operating hole 31, the mounting spring 122 is in a non-stressed state, and the operating strip 311 protrudes from the operating ring 3; when the mounting strip 123 is completely located in the mounting groove 121, the mounting spring 122 is in a compressed state. When one end of the mounting strip 123 is inserted into the operating hole 31, the end of the mounting strip 123 facing the mounting spring 122 is still located in the mounting groove 121.

[0033] Reference Figure 2 A moving hole 13 is provided on the surface of the fixed pipe 1, and the moving hole 13 extends along the length of the fixed pipe 1. A moving bar 131 is slidably connected in the moving hole 13, and the moving bar 131 extends along the length of the air outlet pipe 12. A moving block 132 is fixedly connected to the moving bar 131.

[0034] Reference Figure 2 and Figure 4 A moving spring 133 is fixedly connected to the surface of the moving block 132, and a cleaning strip 14 is fixedly connected to the surface of the moving spring 133 away from the moving block 132. The cleaning strip 14 extends along the circumference of the fixed pipe 1. A groove 141 is provided on the surface of the cleaning strip 14 facing the moving strip 131, and the moving strip 131 is inserted into the groove 141.

[0035] Reference Figure 2 and Figure 4 , a receiving groove 15 for placing the cleaning strip 14 is provided on the inner wall of the fixed pipe 1, the receiving groove 15 extends along the circumference of the cleaning strip 14, and the moving spring 133 drives the cleaning strip 14 to protrude from the receiving groove 15. When the moving block 132 abuts against the hole wall of the moving hole 13 away from the air outlet duct 12, the cleaning strip 14 can be located in the receiving groove 15, the moving strip 131 can be inserted into the groove 141, and the surface of the cleaning strip 14 away from the moving spring 133 is coplanar with the inner wall of the fixed pipe 1, and the cleaning strip 14 is in the initial position. When the moving block 132 abuts against the hole wall of the moving hole 13 close to the air outlet duct 12, the cleaning strip 14 can push the dust into the air outlet duct 12, and the cleaning strip 14 is in the final position.

[0036] Reference Figure 2 and Figure 4 When the movable spring 133 is in a non-stressed state, the cleaning strip 14 protrudes from the receiving groove 15, and the surface of the cleaning strip 14 facing the movable spring 133 is coplanar with the inner wall of the fixed pipe 1. When the movable spring 133 is in a compressed state, the cleaning strip 14 is completely located in the receiving groove 15.

[0037] Reference Figure 2 and Figure 4A sliding groove 16 is provided on the hole wall of the moving hole 13, and a sliding spring 161 is fixedly connected to the bottom wall of the sliding groove 16. The sliding spring 161 is arranged on the moving bar 131, and the sliding spring 161 drives the moving bar 131 to move toward one side of the air outlet duct 12. When the moving block 132 abuts against the hole wall of the moving hole 13 close to the air outlet duct 12, the sliding spring 161 is in a non-stressed state; when the moving block 132 abuts against the hole wall of the moving hole 13 away from the air outlet duct 12, the sliding spring 161 is in a compressed state.

[0038] Reference Figure 2 and Figure 4 , two accordion plates 142 are slidably connected to the cleaning strip 14, and the accordion plates 142 slide along the length direction of the moving strip 131. One of the accordion plates 142 is slidably connected to the surface of the cleaning strip 14 close to the air outlet duct 12, and the other accordion plate 142 is slidably connected to the surface of the cleaning strip 14 away from the air outlet duct 12. Two accordion covers 143 are provided in the moving hole 13, and an accordion groove is opened on the hole wall of the moving hole 13, one of the accordion covers 143 is fixedly connected in the accordion groove, and the accordion cover 143 is fixedly connected to one accordion plate 142. The other accordion cover 143 is fixedly connected to the hole wall of the moving hole 13, and the accordion cover 143 is fixedly connected to the other accordion plate 142. When the cleaning strip 14 is in the receiving groove 15, the accordion cover 143 can block the moving hole 13. When the cleaning strip 14 protrudes out of the receiving groove 15 , the accordion plate 142 moves on the cleaning strip 14 , so that the accordion cover 143 is still located in the moving hole 13 , and the accordion cover 143 still blocks the moving hole 13 .

[0039] Reference Figure 2 and Figure 5 The surface of the moving bar 131 facing the air outlet duct 12 is provided with an operation slot 134 for inserting the operation bar 311, and the operation slot 134 penetrates to the side of the moving bar 131. When the operation bar 311 protrudes from the operation ring 3, the operation bar 311 can be located in the operation slot 134, and a part of the operation bar 311 protrudes from the penetration direction of the operation slot 134, so that the staff can drive the operation bar 311 out of the operation slot 134.

[0040] Reference Figure 5 An operating plate 32 is integrally formed on the surface of the operating ring 3, and the operating plate 32 extends toward the air outlet duct 12. An operating slope 321 is provided on the surface of the operating plate 32, and the distance between the operating slope 321 and the air outlet duct 12 gradually increases in the vertical downward direction.

[0041] Reference Figure 2 , Figure 5 and Figure 6The outer surface of the mounting ring 2 is provided with a slot 23 for inserting the operating strip 311. When the operating strip 311 is inserted into the slot 23, the operating slope 321 is located on the sliding path of the moving strip 131. When the operating ring 3 is installed in the air outlet duct 12, the operating slope 321 drives the moving strip 131 to move, so that the moving block 132 abuts against the moving hole 13 away from the hole wall of the air outlet duct 12, and the moving strip 131 is automatically reset.

[0042] Reference Figure 3 , a receiving groove 17 is provided on the surface of the air outlet duct 12, and a retaining spring 171 is provided in the receiving groove 17. One end of the retaining spring 171 is fixedly connected to the bottom wall of the receiving groove 17, and the other end of the retaining spring 171 is fixedly connected to a retaining bar 172. A retaining groove 24 for inserting the retaining bar 172 is provided on the inner wall of the mounting ring 2, and the retaining spring 171 drives the retaining bar 172 to be inserted into the retaining groove 24. When the retaining bar 172 is inserted into the retaining groove 24, the retaining spring 171 is in a non-stressed state, and the retaining bar 172 locks the mounting ring 2; when the retaining bar 172 is completely located in the receiving groove 17, the retaining spring 171 is in a compressed state.

[0043] Reference Figure 2 and Figure 3 A stopper bar 173 is integrally formed on the surface of the stopper bar 172. The stopper bar 173 is located on the sliding path of the moving bar 131, and the stopper bar 173 and the stopper bar 172 form a C shape. When the moving block 132 abuts against the hole wall of the moving hole 13 close to the air outlet duct 12, the moving bar 131 drives the stopper bar 173 to move, so that the stopper bar 173 drives the stopper bar 172 to disengage from the stopper groove 24, thereby realizing that the stopper bar 172 unlocks the mounting ring 2.

[0044] The implementation principle of the bag dust removal mechanism of a rice milling machine in an embodiment of the present application is as follows: the staff first presses the operating bar 311 to disengage the operating bar 311 from the operating slot 134. At this time, the moving spring 133 drives the cleaning bar 14 to protrude from the accommodating slot 15, and the sliding spring 161 drives the moving bar 131 to move, allowing the cleaning bar 14 to clean the dust. At this time, the moving bar 131 drives the stop bar 172 to disengage from the stop slot 24 through the stop rod 173. Then the staff presses the operating bar 311 to allow the operating bar 311 to push the mounting bar 123 to disengage from the mounting hole 22. The mounting ring 2 can be separated from the air outlet duct 12, thereby realizing the replacement of the bag 21.

[0045] The staff rotates the operating ring 3 to insert the operating strip 311 into the slot 23, and then the staff sets the installation ring 2 in the air outlet duct 12. At this time, the operating inclined surface 321 is located in the moving path of the moving strip 131. When the installation ring 2 is completely set in the air outlet duct 12, the moving block 132 abuts against the moving hole 13 away from the hole wall of the air outlet duct 12. The staff then pulls the operating strip 311 out of the slot 23. The staff rotates the operating ring 3, and the installation spring 122 drives the installation strip 123 to be inserted into the operating hole 31. Finally, the staff presses the operating strip 311, and the staff pulls the moving strip 131 to allow the operating strip 311 to be inserted into the operating slot 134, so that the cleaning strip 14 is located in the accommodating slot 15.

[0046] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A bag dust removal mechanism for a rice mill, comprising a fixed pipe (1), an air outlet pipe (12) being provided on the fixed pipe (1), and a bag (21) being provided on the air outlet pipe (12), characterized in that: A cleaning strip (14) is slidably connected in the fixed pipe (1), a moving strip (131) is provided on the cleaning strip (14), and a moving hole (13) is provided on the fixed pipe (1) for the moving strip (131) to pass through; when the moving strip (131) slides in the moving hole (13), the cleaning strip (14) can push dust to the air outlet pipe (12).

2. The bag dust removal mechanism of a rice mill according to claim 1 is characterized in that: The cloth bag (21) is provided with a mounting ring (2), the mounting ring (2) is provided with a mounting hole (22), the air outlet duct (12) is provided with a mounting spring (122), the mounting spring (122) is provided with a mounting strip (123) for inserting into the mounting hole (22), the mounting spring (122) drives the mounting strip (123) to be inserted into the mounting hole (22); when the mounting strip (123) is inserted into the mounting hole (22), the mounting ring (2) is fixed to the air outlet duct (12).

3. The bag dust removal mechanism of a rice mill according to claim 2 is characterized in that: An operating ring (3) is rotatably connected to the mounting ring (2); an operating hole (31) for inserting a mounting strip (123) is provided on the operating ring (3); an operating strip (311) is slidably connected in the operating hole (31); when the operating strip (311) is inserted into the mounting hole (22), the mounting strip (123) can be detached from the mounting hole (22).

4. The bag dust removal mechanism of a rice mill according to claim 3 is characterized in that: The fixed pipe (1) is provided with a receiving groove (15) communicating with the movable hole (13), and the receiving groove (15) is for inserting the cleaning strip (14); when the cleaning strip (14) is located in the receiving groove (15), the cleaning strip (14) does not protrude from the inner wall of the fixed pipe (1).

5. The bag dust removal mechanism of a rice mill according to claim 4 is characterized in that: The moving bar (131) is provided with a moving block (132), the moving block (132) is provided with a moving spring (133), the moving spring (133) drives the cleaning bar (14) to protrude from the receiving groove (15), and the moving bar (131) is provided with an operating groove (134) for inserting the operating bar (311); when the operating bar (311) is inserted into the operating groove (134), the cleaning bar (14) is located in the receiving groove (15).

6. The bag dust removal mechanism of a rice mill according to claim 3 is characterized in that: A sliding spring (161) is provided in the moving hole (13), the moving bar (131) is arranged on the sliding spring (161), and the sliding spring (161) drives the moving bar (131) to move toward one side of the air outlet duct (12).

7. The bag dust removal mechanism of a rice mill according to claim 6, characterized in that: The operating ring (3) is provided with an operating plate (32), and the operating plate (32) is provided with an operating inclined surface (321), the distance between the operating inclined surface (321) and the air outlet duct (12) gradually increases in a vertically downward direction, and the operating inclined surface (321) can be located on the sliding path of the moving bar (131); when the mounting ring (2) is mounted on the air outlet duct (12), the moving bar (131) abuts against a side of the moving hole (13) away from the air outlet duct (12).

8. The bag dust removal mechanism of a rice mill according to claim 6, characterized in that: The air outlet duct (12) is provided with a stop spring (171), the stop spring (171) is provided with a stop strip (172), the mounting ring (2) is provided with a stop groove (24) for the stop strip (172) to be inserted, the stop spring (171) drives the stop strip (172) to be inserted into the stop groove (24); when the stop strip (172) is located in the stop groove (24), the mounting ring (2) is fixed in the air outlet duct (12).

9. The bag dust removal mechanism of a rice mill according to claim 8, characterized in that: The stop bar (172) is provided with a stop rod (173), and the stop rod (173) is located on the sliding path of the moving bar (131). When the cleaning bar (14) completes cleaning, the stop bar (172) can be separated from the stop groove (24).

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