A rice hulling and polishing integrated machine

Abstract

The utility model relates to a rice shelling polishing integrated machine, including shelling mechanism, polishing mechanism, rotary drive part and blowing part, the shelling mechanism sets up at polishing mechanism, both are linked through blanking pipe, the polishing mechanism includes polishing box and polishing part, and the rotatable filter screen cylinder is arranged in the polishing box, the rotary drive part includes the outer ring, and the outer ring is fixed at the outside of filter screen cylinder and is connected with the polishing box rotation, is equipped with the annular groove in the outside of outer ring, and a plurality of meshing teeth in the annular groove are arranged in the circumferential array, the outside of polishing box is equipped with the step motor, and the output of step motor is assembled with drive gear, and the drive gear is engaged with the outer ring through meshing tooth. This rice shelling polishing integrated machine, through setting rotatable filter screen cylinder cooperation blowing part, can clean the net surface automatically after processing interval or end, effectively prevent the mesh block, keep the screening efficiency, prolong the equipment continuous operation time.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, specifically to an integrated rice hulling and polishing machine. Background Technology

[0002] As a staple food crop, rice's processing, particularly hulling and polishing, is crucial for the quality and yield of finished rice. Traditional rice processing equipment often separates hulling and polishing into separate machines, which results in problems such as large equipment footprint, broken rice during material transfer, and high energy consumption. In recent years, although some integrated hulling and polishing machines have emerged, attempting to combine the two processes, many technical bottlenecks still exist.

[0003] In the prior art, such as Chinese Patent Publication No. CN115382603B, a rice dehulling and polishing device is provided. It achieves continuous processing by connecting the dehulling mechanism and the polishing mechanism. However, in the polishing stage of this type of equipment, the filter screen is mostly fixed. After long-term operation, it is easily blocked by rice bran, debris and other materials, resulting in a decrease in screening efficiency and the need for frequent shutdowns for cleaning, which affects production efficiency. Therefore, an integrated rice dehulling and polishing machine is proposed. Utility Model Content

[0004] Based on the above description, this utility model provides a rice hulling and polishing integrated machine, which solves the technical problems pointed out in the background art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A rice hulling and polishing integrated machine, comprising: Shell removal mechanism; A polishing mechanism and a shell removal mechanism are mounted on the polishing mechanism and are connected by a material feeding pipe. The polishing mechanism includes a polishing box and polishing components. A filter screen cylinder is rotatably installed in the polishing box. The rotary drive component includes an outer ring, which is fixed to the outside of the filter screen cylinder and rotatably connected to the polishing box. An annular groove is provided on the outside of the outer ring, and multiple meshing teeth arranged in a circumferential array are provided in the annular groove. A stepper motor is provided on the outside of the polishing box, and a drive gear is assembled at the output end of the stepper motor. The drive gear meshes with the outer ring through the meshing teeth. The purging component has its purging surface facing the filter cylinder.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the purging component includes a purging pipe with an interface fixed on the outside of the purging pipe. The interface is connected to a blower through a pipe, and the purging pipe has multiple linearly distributed purging holes on the side facing the filter cylinder.

[0008] Furthermore, a positioning part is integrally connected to the left side of the outer ring, and an annular cavity is opened on the left side wall of the polishing box. The positioning part is rotatably connected in the annular cavity through a bearing.

[0009] Furthermore, a semicircular ring one is fixed in the polishing box, and a semicircular ring two is detachably connected to the semicircular ring one. An extension part is provided on the semicircular ring two. The semicircular ring two and the semicircular ring one are located outside the outer ring and together form a protective area. The meshing teeth and the drive gear are located in this protective area.

[0010] Furthermore, each of the outer sides of the first and second semicircular rings is integrally connected with a mating block, and the mating blocks on the outer sides of the first and second semicircular rings are fixed together by bolts.

[0011] Furthermore, the polishing component includes a rotating motor fixed to the left side of the polishing box by bolts, a rotating shaft connected to the output end of the rotating motor is provided in the polishing box, and a polishing rod with polishing balls is fixed on the outside of the rotating shaft.

[0012] Furthermore, a rice outlet pipe is provided on the right side of the polishing box, and a rice bran outlet is provided at the bottom.

[0013] Furthermore, the shelling mechanism includes a shelling box, a feeding hopper fixed at the top of the shelling box, a rice husk material pipe at the bottom of the shelling box, guide blocks fixed on both the left and right side walls of the shelling box, two sets of rubber rollers rotatably connected in the shelling box, the two sets of rubber rollers being staggered, and a motor fixed to the outside of the shelling box by bolts.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. This rice hulling and polishing integrated machine, with its rotatable filter screen and blowing components, can automatically clean the screen surface during processing breaks or after the process is completed, effectively preventing screen blockage, maintaining screening efficiency, extending the continuous operation time of the equipment, realizing automated cleaning, reducing manual intervention, and improving production efficiency.

[0015] 2. This rice hulling and polishing integrated machine uses an outer ring and a drive gear to drive the filter cylinder to rotate, ensuring smooth transmission. The protective area is formed by the encirclement of semi-circular ring one and semi-circular ring two, preventing dust from entering the protective area and improving transmission accuracy and service life. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a rice hulling and polishing integrated machine provided in this embodiment of the present utility model; Figure 2 This is a partial schematic diagram of the cross-section of the purge pipe and its connecting structure in an embodiment of this utility model; Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure; Figure 4 This is a schematic diagram of the outer ring and its connecting structure in an embodiment of this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1. Shelling mechanism; 11. Shelling box; 12. Feed hopper; 13. Rice husk material pipe; 14. Guide block; 15. Rubber roller; 2. Polishing mechanism; 21. Polishing box; 211. Ring cavity; 22. Rotary motor; 23. Rotating shaft; 24. Polishing rod; 25. Filter screen cylinder; 3. Rotary drive component; 31. Outer ring; 311. Ring groove; 312. Positioning part; 32. Bearing; 33. Stepper motor; 34. Drive gear; 35. Semicircular ring one; 36. Semicircular ring two; 37. Extension part; 38. Connecting block; 4. Material discharge pipe; 5. Blowing component; 51. Blowing pipe; 52. Interface; 53. Blower; 54. Blowing hole. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] like Figure 1-4 As shown in the figure, a rice hulling and polishing integrated machine in this embodiment includes a hulling mechanism 1 and a polishing mechanism 2, wherein the hulling mechanism 1 is disposed on the polishing mechanism 2, and the two are connected by a material discharge pipe 4.

[0020] Polishing mechanism 2 includes polishing box 21 and polishing components, to Figure 2From a reference perspective, the polishing components include a rotary motor 22 bolted to the left side of the polishing box 21. A rotating shaft 23 connected to the output of the rotary motor 22 is located inside the polishing box 21. A polishing rod 24 with polishing balls is fixed to the outside of the rotating shaft 23. A rice outlet pipe is located on the right side of the polishing box 21, and a rice bran outlet is located at the bottom. This is prior art; see publication CN115382603B, "A Dehulling and Polishing Equipment for Rice Processing." Additionally, a filter cylinder 25 is installed in the polishing box 21 to sieve out the polished outer layer. However, since it is stationary during sieving, a section... After a period of time, some materials cannot fall off, resulting in blockage. This will reduce the screening efficiency when the product is reused. Therefore, unlike existing technologies, in this embodiment, the filter cylinder 25 is rotatably installed in the polishing box 21. Thus, this rice hulling and polishing integrated machine also includes a rotary drive component 3 and a blowing component 5. The filter cylinder 25 is driven by the rotary drive component 3 to complete the rotation action, while the blowing surface of the blowing component 5 faces the filter cylinder 25. In this way, the two work together to clean the filter cylinder 25. The rotary drive component 3 and the blowing component 5 are operated, for example, after each batch processing.

[0021] The rotary drive component 3 includes an outer ring 31, which is fixed to the outside of the filter cylinder 25 and rotatably connected to the polishing box 21. A positioning part 312 is integrally connected to the left side of the outer ring 31. An annular cavity 211 is opened on the left side wall of the polishing box 21. The positioning part 312 is rotatably connected to the annular cavity 211 through a bearing 32. In addition, an annular groove 311 is opened on the outside of the outer ring 31. Multiple meshing teeth arranged in a circumferential array are provided in the annular groove 311. A stepper motor 33 is fixed to the outside of the polishing box 21 by bolts. A drive gear 34 is assembled at the output end of the stepper motor 33. The drive gear 34 meshes with the outer ring 31 through meshing teeth.

[0022] Considering that the meshing teeth and drive gear 34 are exposed, which would interfere with their transmission, a semi-circular ring 35 is fixed in the polishing box 21. A second semi-circular ring 36 is detachably connected to the first semi-circular ring 35. An extension 37 is provided on the second semi-circular ring 36. The second semi-circular ring 36 and the first semi-circular ring 35 are located outside the outer ring 31 and together form a protective area. The meshing teeth and drive gear 34 are located in this protective area, thus achieving protection for the meshing teeth and drive gear 34.

[0023] To further explain, both the outer sides of the first semicircular ring 35 and the second semicircular ring 36 are integrally connected with a mating block 38. The mating blocks 38 on the outer sides of the first semicircular ring 35 and the second semicircular ring 36 are fixed together by bolts, so that the first semicircular ring 35 can be detachably connected to the second semicircular ring 36.

[0024] The purging component 5 includes a purging pipe 51, with an interface 52 fixed on the outside of the purging pipe 51. The interface 52 is connected to a blower 53 through a pipe. It should be noted that the purging pipe 51 has multiple linearly distributed purging holes 54 on the side facing the filter cylinder 25. Thus, after the blower 53 is started, air will flow out from the purging holes 54 and purify the filter cylinder 25. Subsequently, as the filter cylinder 25 rotates, the entire filter cylinder 25 can be purged, thus preventing the filter cylinder 25 from becoming clogged.

[0025] Further explanation: The hulling mechanism 1 includes a hulling box 11, a feeding hopper 12 fixed at the top of the hulling box 11, a rice husk feed pipe 13 at the bottom of the hulling box 11, and guide blocks 14 fixed on both the left and right side walls of the hulling box 11. Two sets of rubber rollers 15 are rotatably connected in the hulling box 11. The two sets of rubber rollers 15 are staggered, and a motor is fixed to the outside of the hulling box 11 by bolts. The rubber rollers 15 are assembled at the output end of the corresponding motor. In this way, the staggered arrangement allows the rice to fall between the two sets of rubber rollers 15 and then be thrown downwards at an angle. Due to the difference in gravity between the rice and the rice husk, the centrifugal force is different, resulting in different distances that the rice and the rice husk move outwards when falling, thus achieving effective separation of the rice and the rice husk. The hulling mechanism 1 is also prior art, and reference can be made to the document CN115382603B, "A Hulling and Polishing Equipment for Rice Processing".

[0026] The working instructions for this rice hulling and polishing integrated machine are as follows: Hulling stage: The rice to be processed is fed into the hulling box 11 through the feeding hopper 12. Two sets of staggered rubber rollers 15 in the hulling box 11 rotate in opposite directions under the drive of the motor, squeezing and rubbing the rice to complete the hulling. After hulling, the mixture is discharged through the rice hull material pipe 13 under the action of gravity and centrifugal force, while the brown rice falls into the polishing mechanism 2 below through the discharge pipe 4. Polishing stage: After the brown rice enters the polishing box 21, the rotating motor 22 starts, driving the rotating shaft 23 and the polishing rod 24 fixed on it to rotate at high speed. The polishing balls on the polishing rod 24 continuously rub the surface of the rice grains to achieve polishing. The rice bran produced by polishing is thrown into the filter cylinder 25 for screening under the action of the airflow generated by the rotation of the polishing rod 24 and its own gravity. The fine rice bran falls through the mesh and is finally discharged from the rice bran outlet at the bottom. The finished rice that has been polished is discharged from the rice outlet pipe on the right side. Cleaning stage (automatic operation during processing breaks): Stepper motor 33 starts, driving the drive gear 34 at its output end to rotate. The drive gear 34 meshes with the meshing teeth on the outer ring 31, thereby driving the outer ring 31 and the filter screen cylinder 25 fixedly connected to its inner side to rotate slowly. Rotation drive: At the same time as rotation, blower 53 starts, and airflow enters the purge pipe 51 through the pipe and interface 52, and finally sprays out at high speed from a series of purge holes 54, directly purging the outer surface of the filter screen cylinder 25. The rotational motion allows the airflow sprayed from the purge holes 54 to cover the entire working surface of the filter screen cylinder 25, effectively removing the rice bran clogging the mesh and ensuring that its screening efficiency is always kept at the best state.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A rice hulling and polishing integrated machine, characterized in that, include: Shell removal mechanism (1); The polishing mechanism (2) and the shell removal mechanism (1) are set on the polishing mechanism (2) and are connected by a material drop pipe (4). The polishing mechanism (2) includes a polishing box (21) and a polishing component. A filter screen cylinder (25) is rotatably installed in the polishing box (21). The rotary drive component (3) includes an outer ring (31), which is fixed to the outside of the filter screen cylinder (25) and rotatably connected to the polishing box (21). An annular groove (311) is provided on the outside of the outer ring (31), and multiple meshing teeth arranged in a circular array are provided in the annular groove (311). A stepper motor (33) is provided on the outside of the polishing box (21), and a drive gear (34) is assembled at the output end of the stepper motor (33). The drive gear (34) meshes with the outer ring (31) through the meshing teeth. The purging component (5) has its purging surface facing the filter cylinder (25).

2. The rice hulling and polishing integrated machine according to claim 1, characterized in that: The purging component (5) includes a purging pipe (51), and an interface (52) is fixed on the outside of the purging pipe (51). The interface (52) is connected to a blower (53) through a pipe. The purging pipe (51) has multiple linearly distributed purging holes (54) on the side facing the filter cylinder (25).

3. The rice hulling and polishing integrated machine according to claim 2, characterized in that: The outer ring (31) is integrally connected to the left side of the positioning part (312), and the polishing box (21) has an annular cavity (211) on the left side wall. The positioning part (312) is rotatably connected in the annular cavity (211) through the bearing (32).

4. The rice hulling and polishing integrated machine according to claim 3, characterized in that: A semicircular ring one (35) is fixed in the polishing box (21). A semicircular ring two (36) is detachably connected to the semicircular ring one (35). An extension part (37) is provided on the semicircular ring two (36). The semicircular ring two (36) and the semicircular ring one (35) are located outside the outer ring (31) and together form a protective area. The meshing teeth and the drive gear (34) are located in this protective area.

5. The rice hulling and polishing integrated machine according to claim 4, characterized in that: The outer sides of the first semicircular ring (35) and the second semicircular ring (36) are each integrally connected with a mating block (38), and the mating blocks (38) on the outer sides of the first semicircular ring (35) and the second semicircular ring (36) are fixed together by bolts.

6. The rice hulling and polishing integrated machine according to claim 1, characterized in that: The polishing component includes a rotating motor (22) fixed to the left side of the polishing box (21) by bolts. The polishing box (21) is provided with a rotating shaft (23) connected to the output end of the rotating motor (22). A polishing rod (24) with polishing balls is fixed on the outside of the rotating shaft (23).

7. The rice hulling and polishing integrated machine according to claim 1, characterized in that: The polishing box (21) is provided with a rice outlet pipe on the right side and a rice bran outlet at the bottom.

8. The rice hulling and polishing integrated machine according to claim 1, characterized in that: The shelling mechanism (1) includes a shelling box (11), a feeding hopper (12) is fixed on the top of the shelling box (11), a rice husk material pipe (13) is provided at the bottom of the shelling box (11), and guide blocks (14) are fixed on both the left and right side walls of the shelling box (11). Two sets of rubber rollers (15) are rotatably connected in the shelling box (11). The two sets of rubber rollers (15) are staggered and a motor is fixed to the outside of the shelling box (11) by bolts.

Images