Polishing equipment for polished rice processing

Abstract

The utility model belongs to the technical field of agricultural product processing, and particularly relates to polishing equipment for polished rice processing, which comprises a polishing box and a polishing mechanism, and further comprises a quantifying mechanism, the quantifying mechanism comprises a U-shaped material receiving plate, the U-shaped material receiving plate is fixed in a feeding hopper, the bottom end of the U-shaped material receiving plate is of a semicircular tubular structure with an upward opening, and the bottom end of the U-shaped material receiving plate is provided with a feeding opening. A discharge hole is formed in the bottom end of the U-shaped receiving plate; the circumferential surface of the quantifying roller tightly abuts against the bottom surface of the U-shaped material receiving plate, and a plurality of material collecting grooves which are distributed in the circumferential direction at equal intervals are machined in the outer wall of the quantifying roller; a second driving motor; according to the rice polishing device, the quantitative mechanism is used for quantitative feeding, the problem of insufficient polishing caused by excessive rice accumulation is solved, the quantitative roller can stir the rice on the bottom side when rotating, it is ensured that the rice reliably enters the material collecting groove, blocking accidents are avoided, and the production reliability and the production efficiency are improved.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural product processing technology, specifically relating to a polishing device for rice processing. Background Technology

[0002] Rice grains also have a small amount of bran powder on their surface, which affects the appearance, storage quality, and taste of the cooked rice. Therefore, it is necessary to remove this bran powder through a "polishing" process. Polishing is one of the key processes in clean rice processing. Because polishing can remove the bran powder from the surface of rice grains, proper polishing can make the starch on the surface of rice grains gelatinized, giving them a certain gloss, resulting in a better appearance and increased commercial value.

[0003] Currently, polishing is usually achieved by continuously rubbing rice grains with paired grinding rollers. To control the amount of material fed and ensure the reliability of polishing, an intermittent feeding mechanism is usually installed in the polishing equipment.

[0004] For example, in the prior art, Chinese utility model patent with authorization announcement number CN210646532U discloses "a rice processing device for grain production", which includes a production cabinet, a rice polishing component, an intermittent feeding component and a secondary processing component. The top of the production cabinet is provided with a feeding box that communicates with its interior. The intermittent feeding component includes an intermittent feeding part, a filter grid and a limiting plate. The inner walls on both sides of the feeding box are provided with guide strips. The inside of the production cabinet is provided with a rice grain scraping component.

[0005] While existing processing equipment, including those mentioned above, can meet general usage requirements, in actual use, it achieves intermittent feeding by changing the position of the filter grid. However, the pore size of the filter grid is generally not very large. When a large amount of rice accumulates, there is mutual stress between the rice grains, making the equipment prone to clogging.

[0006] To address the aforementioned problems, this utility model proposes a polishing device for rice refining. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides a polishing device for rice processing, which is convenient to use, provides thorough polishing, and has high processing efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a polishing device for rice processing, comprising a polishing box and a polishing mechanism disposed within the polishing box for polishing rice grains, wherein a feeding hopper is fixed at the top of the polishing box, a discharge port is fixed at the bottom, a waste discharge port is fixed on the outer side of the polishing box, and a metering mechanism is further comprising:

[0009] The U-shaped receiving plate is fixed inside the feeding hopper, and the bottom end of the U-shaped receiving plate is a semi-circular tubular structure with the opening facing upward. A discharge hole is machined at the bottom end of the U-shaped receiving plate.

[0010] A metering roller is rotatably installed inside the feeding hopper, and the circumferential surface of the metering roller is in close contact with the bottom surface of the U-shaped receiving plate. Multiple material collection grooves are processed on the outer wall of the metering roller at equal intervals along the circumferential direction.

[0011] The second drive motor is fixed to the outer wall of the feeding hopper and is used to drive the metering roller to rotate.

[0012] In a preferred embodiment of this invention, the length and width of the discharge hole are equal to the length and width of the collection trough.

[0013] As a preferred embodiment of this utility model, the end face of the U-shaped receiving plate is tightly fitted to the inner wall of the feeding hopper.

[0014] As a preferred technical solution of this utility model, it also includes:

[0015] A stirring mechanism is installed inside the feeding hopper and is used to stir the rice grains.

[0016] As a preferred embodiment of this utility model, the stirring mechanism includes:

[0017] A rotating rod is rotatably mounted inside the feeding hopper and located on the inner side of the U-shaped receiving plate;

[0018] The No. 3 drive motor is fixed to the outer wall of the feeding hopper and is used to drive the rotating rod to rotate.

[0019] A stirring rod, wherein multiple stirring rods are uniformly fixed to the outer wall of the rotating rod.

[0020] As a preferred embodiment of this utility model, the polishing mechanism includes:

[0021] Two grinding rollers are arranged in parallel and rotatably installed in the polishing box, and a fixed shaft is fixed at both ends of each grinding roller.

[0022] A first drive motor is fixed to the outer wall of the polishing box and is used to drive the first grinding rollers to rotate.

[0023] The first gear is fixed on the first fixed shaft at the same end of the two first grinding rollers, and the two first gears mesh with each other.

[0024] As a preferred embodiment of this utility model, the polishing mechanism further includes:

[0025] The two No. 2 grinding rollers are arranged in parallel and rotatably installed in the polishing box, and a No. 2 fixed shaft is fixed at both ends of the No. 2 grinding rollers.

[0026] The second gear is fixed on the second fixed shaft at the same end of the two second grinding rollers, and the two second gears mesh with each other;

[0027] The transmission mechanism connects the second grinding roller to the first grinding roller.

[0028] As a preferred embodiment of this utility model, the transmission mechanism includes:

[0029] An active synchronizing pulley, which is fixed on the first fixed shaft;

[0030] Driven synchronous pulley, the driven synchronous pulley is fixed on the second fixed shaft;

[0031] A synchronous belt is used, and the driven synchronous pulley is connected to the driving synchronous pulley via a synchronous belt drive.

[0032] Compared with the prior art, the beneficial effects of this utility model are:

[0033] In this invention, a quantitative mechanism is used for quantitative feeding, which avoids the problem of insufficient polishing caused by excessive rice accumulation. Furthermore, the quantitative roller can move the rice on the bottom side when rotating, ensuring that the rice reliably enters the collection trough, avoiding blockage accidents, and improving production reliability and efficiency.

[0034] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0035] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0036] Figure 1 This is a schematic diagram of the structure of this utility model;

[0037] Figure 2 This is a schematic diagram of the cross-sectional structure of the feeding hopper in this utility model;

[0038] Figure 3This is an isometric structural diagram of the polishing mechanism in this utility model.

[0039] In the diagram: 1. Polishing box; 11. Feeding hopper; 12. Discharge port; 13. Impurity discharge port; 2. Polishing mechanism; 21. No. 1 grinding roller; 211. No. 1 fixed shaft; 22. No. 1 drive motor; 23. No. 1 gear; 24. No. 2 grinding roller; 241. No. 2 fixed shaft; 25. No. 2 gear; 26. Transmission mechanism; 261. Driving synchronous pulley; 262. Driven synchronous pulley; 263. Synchronous belt; 3. Metering mechanism; 31. U-shaped receiving plate; 311. Discharge hole; 32. Metering roller; 321. Collection trough; 33. No. 2 drive motor; 4. Stirring mechanism; 41. Rotating rod; 42. No. 3 drive motor; 43. Stirring rod. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please see Figures 1-3 The present invention provides the following technical solution: a polishing device for rice processing, including a polishing box 1 and a polishing mechanism 2 set inside the polishing box 1 for polishing rice grains. A feeding hopper 11 is fixed at the top of the polishing box 1 and a discharge port 12 is fixed at the bottom. A waste discharge port 13 is fixed on the outer side of the polishing box 1. It also includes a quantitative mechanism 3, which includes a U-shaped receiving plate 31, a quantitative roller 32 and a second drive motor 33.

[0042] Furthermore, by Figure 1 and Figure 2As shown, in this embodiment, the U-shaped receiving plate 31 is fixed inside the feeding hopper 11, and the bottom end of the U-shaped receiving plate 31 is a semi-circular tubular structure with the opening facing upwards. A discharge hole 311 is machined at the bottom end of the U-shaped receiving plate 31. The metering roller 32 is rotatably installed inside the feeding hopper 11, and the circumferential surface of the metering roller 32 is in close contact with the bottom surface of the U-shaped receiving plate 31. Multiple collection grooves 321 are machined on the outer wall of the metering roller 32, which are evenly distributed along the circumferential direction. The second drive motor 33 is fixed to the outer wall of the feeding hopper 11 and is used to drive the metering roller 32 to rotate. With the above scheme, when using, the rice to be processed is put into the feeding hopper 11, and the second drive motor 33 is started to drive the metering roller 32 to rotate, and at the same time, the metering roller 32 is started to rotate. The polishing mechanism 2 allows rice to enter the U-shaped receiving plate 31 under its own gravity. As the metering roller 32 rotates, the rice falls into the collecting trough 321 when it coincides with the discharge hole 311. When the collecting trough 321 moves away from the discharge hole 311, the rice is discharged from the collecting trough 321 under the action of centrifugal force and gravity. The rice is then polished by the polishing mechanism 2. This invention uses the metering mechanism 3 to meter the rice, avoiding the problem of insufficient polishing caused by excessive rice accumulation. Furthermore, the metering roller 32 can move the rice on the bottom side when it rotates, ensuring that the rice reliably enters the collecting trough 321, avoiding blockage accidents, and improving the reliability and efficiency of production.

[0043] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, the length and width of the discharge hole 311 are equal to the length and width of the collection trough 321. With the above design, it can be ensured that rice reliably enters the collection trough 321 during use. In fact, it is easy to understand that the same effect can be achieved if the length and width of the collection trough 321 are slightly larger than the length and width of the discharge hole 311.

[0044] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, the end face of the U-shaped receiving plate 31 is tightly attached to the inner wall of the feeding hopper 11. With the above design, it can be ensured that rice reliably enters the collecting trough 321 during use, and prevent rice from entering the gap between the U-shaped receiving plate 31 and the inner wall of the feeding hopper 11.

[0045] Preferably, by Figure 1 and Figure 2 As shown, this embodiment also includes a stirring mechanism 4, which is installed in the feeding hopper 11 and is used to stir the rice grains. With the above design, when in use, the stirring mechanism 4 is started to stir the rice, which further improves the reliability of feeding and avoids the occurrence of blockage accidents.

[0046] Optionally, by Figure 1 and Figure 2 As shown in this embodiment, the stirring mechanism 4 includes: a rotating rod 41, a third drive motor 42, and stirring rods 43. The rotating rod 41 is rotatably installed inside the feeding hopper 11 and located on the inner side of the U-shaped receiving plate 31. The third drive motor 42 is fixed to the outer wall of the feeding hopper 11 and is used to drive the rotating rod 41 to rotate. Multiple stirring rods 43 are evenly fixed to the outer wall of the rotating rod 41. With the above design, when in use, the third drive motor 42 is started to drive the rotating rod 41 to rotate, and the rotating rod 41 drives multiple stirring rods 43 to rotate to stir the rice.

[0047] Optionally, by Figure 1 and Figure 3 As shown in this embodiment, the polishing mechanism 2 includes: a first grinding roller 21, a first drive motor 22, and a first gear 23. The two first grinding rollers 21 are parallel and rotatably installed in the polishing box 1, and a first fixed shaft 211 is fixed at both ends of the first grinding rollers 21. The first drive motor 22 is fixed to the outer wall of the polishing box 1 and is used to drive the first grinding rollers 21 to rotate. A first gear 23 is fixed on the first fixed shaft 211 at the same end of the two first grinding rollers 21, and the two first gears 23 mesh with each other. With the above design, when in use, the first drive motor 22 is started to drive the first grinding rollers 21 to rotate. The two first grinding rollers 21 rotate relative to each other under the meshing action of the two first gears 23. The first grinding rollers 21 continuously rub the rice to polish it.

[0048] Preferably, by Figure 1 and Figure 3 As shown in this embodiment, the polishing mechanism 2 further includes: a second grinding roller 24, a second gear 25, and a transmission mechanism 26. The two second grinding rollers 24 are parallel and rotatably installed in the polishing box 1. A second fixed shaft 241 is fixed at both ends of the second grinding rollers 24. A second gear 25 is fixed on the second fixed shaft 241 at the same end of the two second grinding rollers 24, and the two second gears 25 mesh with each other. The second grinding rollers 24 are connected to the first grinding roller 21 by the transmission mechanism 26. With the above design, when the first grinding roller 21 rotates, it will drive the second grinding roller 24 to rotate by the transmission mechanism 26. The two second grinding rollers 24 rotate relative to each other under the meshing action of the two second gears 25, further polishing the rice.

[0049] Optionally, by Figure 1 and Figure 3As shown in this embodiment, the transmission mechanism 26 includes: a driving synchronous wheel 261, a driven synchronous wheel 262, and a synchronous belt 263. The driving synchronous wheel 261 is fixed on a first fixed shaft 211, and the driven synchronous wheel 262 is fixed on a second fixed shaft 241. The driven synchronous wheel 262 is connected to the driving synchronous wheel 261 via the synchronous belt 263. With the above design, when the first grinding roller 21 rotates, it drives the driving synchronous wheel 261 to rotate. The driving synchronous wheel 261 drives the driven synchronous wheel 262 to rotate via the synchronous belt 263, thus polishing the rice.

[0050] It should be noted that the above solution is only an exemplary solution of this utility model and is not intended to limit this utility model. In actual use, the two No. 2 gears 25 can be directly meshed with the two No. 1 gears 23 to drive the two No. 2 grinding rollers 24 to rotate relative to each other. However, at this time, the rotation direction of the No. 2 grinding rollers 24 and the No. 1 grinding rollers 21 is opposite.

[0051] It is understood that the polishing equipment of this utility model may further include a blower. In use, the blower is fixed inside the polishing box 1 to blow rice bran out from the impurity discharge port 13. The specific working principle can be referred to the polishing box of the prior art. The polishing equipment has been described in detail in the above embodiment section, and will not be described in detail here.

[0052] It should be noted that drive motor 22, drive motor 33, and drive motor 42 are all commercially available conventional devices with built-in power switches. Those skilled in the art can make conventional selections according to their needs. Their working principles are common knowledge known to those skilled in the art and have been fully disclosed in the prior art, so they will not be elaborated on further in this article.

[0053] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0054] Components not described in detail in this article are existing technologies.

[0055] The working principle and usage process of this utility model: When using the polishing equipment of this utility model, the rice to be processed is put into the feeding hopper 11, and the second drive motor 33 is started to drive the quantitative roller 32 to rotate. At the same time, the first drive motor 22 is started to drive the first grinding roller 21 to rotate. The two first grinding rollers 21 rotate relative to each other under the meshing action of the two first gears 23, and the two second grinding rollers 24 rotate synchronously under the action of the transmission mechanism 26.

[0056] Under its own gravity, the rice enters the U-shaped receiving plate 31. During the rotation of the metering roller 32, when the collecting trough 321 coincides with the discharge hole 311, the rice will fall into the collecting trough 321. When the collecting trough 321 moves away from the discharge hole 311, the rice is discharged from the collecting trough 321 under the action of centrifugal force and gravity, and then polished by the polishing mechanism 2.

[0057] This utility model uses a quantitative mechanism 3 for quantitative feeding, which avoids the problem of insufficient polishing caused by excessive rice accumulation. In addition, the quantitative roller 32 can move the rice on the bottom side when rotating, ensuring that the rice reliably enters the collection trough 321, avoiding the occurrence of blockage accidents, and improving the reliability and efficiency of production.

[0058] In addition, when necessary, the No. 3 drive motor 42 is activated to drive the rotating rod 41 to rotate. The rotating rod 41 drives multiple stirring rods 43 to rotate and stir the rice, which further improves the reliability of feeding and avoids the occurrence of blockage accidents.

[0059] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A kind of rice processing with polishing equipment, including polishing box (1) and the polishing mechanism (2) for being set in the polishing box (1) for polishing rice kernel, the top end of the polishing box (1) is fixed with feeding hopper (11), bottom is fixed with discharge port (12), the outside of the polishing box (1) is fixed with the impurity discharge port (13), it is characterized by, Quantitative mechanism (3) is further included, and the quantitative mechanism (3) includes: U-shaped material receiving plate (31) is fixed in the upper hopper (11), and the bottom end of the U-shaped material receiving plate (31) is a semi-circular tubular structure with an upward opening, and a material discharging hole (311) is processed at the bottom end of the U-shaped material receiving plate (31); Quantitative roller (32) is rotatably installed in the upper hopper (11), and the circumferential surface of the quantitative roller (32) is tightly attached to the bottom surface of the U-shaped material receiving plate (31), and a plurality of material collecting grooves (321) are processed on the outer wall of the quantitative roller (32) and are evenly distributed in the circumferential direction; The second driving motor (33) is fixed to the outer wall of the upper hopper (11) and is used to drive the quantitative roller (32) to rotate.

2. The polishing apparatus for processing of fine rice according to claim 1, wherein: The length and width of the material discharging hole (311) are equal to the length and width of the material collecting groove (321).

3. The polishing apparatus for rice processing according to claim 1, wherein: The end surface of the U-shaped material receiving plate (31) is tightly attached to the inner wall of the upper hopper (11).

4. The polishing apparatus for rice processing according to claim 1, wherein: Further comprising: Stirring mechanism (4) is installed in the upper hopper (11) and is used for stirring rice grains.

5. The polishing apparatus for rice processing according to claim 4, wherein: The stirring mechanism (4) includes: Rotating rod (41) is rotatably installed in the upper hopper (11) and is located on the inner side of the U-shaped material receiving plate (31); The third driving motor (42) is fixed to the outer wall of the upper hopper (11) and is used to drive the rotating rod (41) to rotate; A plurality of stirring rods (43) are uniformly fixed to the outer wall of the rotating rod (41).

6. The polishing apparatus for rice processing according to claim 1, wherein: The polishing mechanism (2) includes: A pair of first grinding rollers (21) are parallelly distributed and rotatably installed in the polishing box (1), and a first fixed shaft (211) is fixed to each end of the first grinding roller (21); The first driving motor (22) is fixed to the outer wall of the polishing box (1) and is used to drive the first grinding roller (21) to rotate; A first gear (23) is fixed to each first fixed shaft (211) at the same end of the first grinding roller (21), and the two first gears (23) are engaged.

7. The polishing apparatus for rice processing according to claim 6, wherein: The polishing mechanism (2) further includes: A pair of second grinding rollers (24) are parallelly distributed and rotatably installed in the polishing box (1), and a second fixed shaft (241) is fixed to each end of the second grinding roller (24); A second gear (25) is fixed to each second fixed shaft (241) at the same end of the second grinding roller (24), and the two second gears (25) are engaged; The second grinding roller (24) is drivingly connected to the first grinding roller (21) by a transmission mechanism (26).

8. The polishing apparatus for rice processing according to claim 7, wherein: The transmission mechanism (26) includes: A driving synchronous wheel (261) is fixed on the first fixed shaft (211); A driven synchronous wheel (262) is fixed on the second fixed shaft (241); The driven synchronous wheel (262) is connected to the driving synchronous wheel (261) by a synchronous belt (263).

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