A fine grinding device for rice bran meal production

Abstract

The utility model relates to rice bran processing equipment technical field, concretely discloses a kind of refining grinding device for rice bran production, including grinder, the lower portion of grinder is provided with refining mechanism, the lower portion of refining mechanism is provided with screening mechanism, and refining mechanism includes shell, the lower portion of shell is connected with grinding plate, the top of shell is rotatably connected with support shaft, the lower end both sides of support shaft are provided with grinding roller, screening mechanism includes sieve basket, the upper portion of sieve basket is connected with top plate, both ends of sieve basket are connected with side plate, the lower portion of two side plates is connected with multiple first spring and second spring respectively, the lower portion middle part of a side plate is provided with cam, the side of cam is connected with second motor, the device can avoid the rice bran after grinding from the upper portion of sieve basket in the process of screening fly out, can avoid the rice bran after screening adhere on first spring, second spring and second motor, ensure the smooth operation of above-mentioned component and the coherence of screening.

Description

Technical Field

[0001] This utility model relates to the technical field of rice bran meal processing equipment, and specifically discloses a fine grinding device for rice bran meal production. Background Technology

[0002] Rice bran meal is the solid residue left after rice bran oil is extracted by puffing leaching or pre-pressing leaching. The raw material, rice bran, is a core by-product generated during rice processing. It mainly consists of the pericarp, seed coat, aleurone layer, germ, and a small amount of endosperm removed when brown rice is refined into polished rice. It is a yellow to yellowish-brown powder containing a small amount of starch granules. During the processing of rice bran meal, a fine grinding device is required to grind the raw materials to obtain rice bran meal and rice bran that meet the requirements.

[0003] Chinese patent CN217646504U discloses a rice bran grinding device for a rice production line, relating to the field of grinding device technology. It includes: a base plate, a grinding mill fixedly mounted on the top of the outer wall of the base plate, and a screening mechanism mounted on the base plate. The screening mechanism includes a screening frame, two sets of moving parts, an elastic component, and a driving component. Both sets of moving parts are mounted on the grinding mill, and the screening frame is positioned between the two sets of moving parts. The rice production line uses a rice bran grinding device. A drive component moves a screening frame on an elastic component across two sets of moving parts, enabling fine screening of the ground rice bran. This prevents insufficient grinding, which leads to inconsistent quality and hinders further processing. The device also uses a rotating component to drive multiple rotating plates within a feed frame, preventing blockages that could prevent rice bran from entering the grinder and reduce grinding efficiency. However, during use, powdery particles from the screening basket and its connecting components can easily fly out from the top of the basket, wasting rice bran and affecting the cleanliness of the operating environment. Furthermore, finer rice bran sieved from the basket can adhere to the springs and motor, affecting their normal operation and disrupting the continuity of the screening process. Therefore, to address these issues, this invention proposes a fine grinding device for rice bran meal production. Utility Model Content

[0004] The present invention aims to provide a fine grinding device for rice bran production, which can prevent the ground rice bran from flying out from the top of the sieve basket during the screening process, reduce rice bran waste, and ensure the cleanliness of the device's operating environment. It can also prevent the screened rice bran from adhering to the first spring, the second spring, and the second motor, ensuring the smooth operation of the above components and the continuity of screening.

[0005] This utility model is achieved through the following technical solution:

[0006] A fine grinding device for rice bran meal production includes a grinder, a fine grinding mechanism below the grinder, a screening mechanism below the fine grinding mechanism, a shell, a support connected to the outer side of the shell, a grinding plate connected to the lower part of the shell, a hopper connected to the lower part of the grinding plate, a support shaft rotatably connected to the top of the shell, grinding rollers on both sides of the lower end of the support shaft, a steering mechanism connected to the upper end of the support shaft, a screening mechanism including a screen basket, a top plate connected to the upper part of the screen basket, a corrugated pipe connected to the upper center of the top plate, a third discharge pipe below the screen basket, side plates connected to both ends of the screen basket, multiple first springs and second springs respectively connected to the lower part of each of the two side plates, a cam located at the lower center of one of the side plates, a second motor connected to one side of the cam, and a base connected to the outer side of the second motor.

[0007] As a further feature of the above solution, a first discharge pipe is connected to the bottom of the grinder. The first discharge pipe passes through the top of the outer shell and communicates with the inner cavity of the outer shell, which facilitates the injection of the ground rice bran into the refining mechanism. The outer side of the grinder is connected to the support, which can provide stable support for the grinder.

[0008] As a further feature of the above scheme, a drive shaft is provided through the interior of the grinding roller and is rotatably connected to the drive shaft. One end of the drive shaft is connected to the support shaft, which facilitates the installation and maintenance of the drive shaft and the grinding roller. A first motor is connected to one side of the steering gear, which can provide power for the rotation of components such as the support shaft and the drive shaft.

[0009] As a further feature of the above solution, a second discharge pipe is connected to the lower center of the hopper, and the lower end of the second discharge pipe is connected to the upper end of the corrugated pipe, so as to facilitate the further finely ground rice bran meal to be injected into the sieve basket for screening.

[0010] As a further feature of the above solution, a limit rod is provided in the middle of both the first spring and the second spring, and a first mounting plate and a second mounting plate are respectively connected to the bottom of the first spring and the second spring, which can provide support for the first spring, the second spring and the screen basket.

[0011] As a further feature of the above solution, the limiting rods under the two side plates pass through the interior of the first mounting plate and the second mounting plate respectively and are slidably connected to the first mounting plate and the second mounting plate respectively, which can limit the movement direction of the screen basket and the two springs. The base is connected to the second mounting plate and can provide support for the base and the second motor.

[0012] The first and second mounting plates involved in this utility model are both connected to the bracket. An external controller for controlling the operation of the grinder, the first motor and the second motor is provided above the first mounting plate. The structure and usage of the grinder are referenced in patent number CN217646504U, "Structure and Usage of a Rice Bran Grinding Device for a Rice Production Line". The first motor and the second motor are both connected to the external controller through power lines and signal lines. The steering gear is a right-angle steering gear with two vertically arranged bevel gears inside. The grinding plate has multiple evenly distributed holes inside.

[0013] The present invention has the following beneficial effects during use:

[0014] The combined use of the support shaft, grinding plate and two grinding rollers in the refining mechanism can further refine the rice bran meal after grinding by the mill, ensuring the quality of grinding. The combined use of the steering gear and the first motor can reduce the overall height of the combination of the first motor, steering gear and support shaft, and reduce the space occupied by the first motor above the housing.

[0015] The combination of the top plate and the corrugated pipe in the screening mechanism can prevent the finely ground rice bran from flying out from the top of the screen basket during the screening process, reducing rice bran waste and keeping the operating environment of the device clean. The second motor and the cam are located on one side of the screen basket, which can prevent the screened rice bran from adhering to the spring, the cam and the second motor, ensuring the smooth operation of the above components. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a front sectional perspective view of the present invention;

[0019] Figure 3 This is a perspective view of the grinding plate, support shaft, and hopper components in this utility model.

[0020] Figure 4 This is a perspective view of the assembly of components such as the support shaft and grinding roller in this utility model;

[0021] Figure 5 This is a perspective view of the screening mechanism in this utility model.

[0022] In the diagram: 1. Grinding machine; 2. Refining mechanism; 3. Screening mechanism; 11. First discharge pipe; 21. Outer shell; 22. Support; 23. Grinding plate; 24. Support shaft; 241. Drive shaft; 242. Grinding roller; 25. Steering gear; 26. First motor; 27. Feed hopper; 271. Second discharge pipe; 31. Screen basket; 311. Top plate; 312. Corrugated pipe; 313. Third discharge pipe; 314. Side plate; 32. First spring; 33. Second spring; 34. Limiting rod; 35. First mounting plate; 36. Second mounting plate; 37. Cam; 38. Second motor; 381. Machine base. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-5 This application will be described in detail with reference to the embodiments.

[0025] This embodiment discloses a fine grinding device for rice bran meal production, including a grinding mill 1. A fine grinding mechanism 2 is arranged below the grinding mill 1, and a screening mechanism 3 is arranged below the fine grinding mechanism 2. The fine grinding mechanism 2 includes a housing 21, a support 22 connected to the outer side of the housing 21, a grinding plate 23 connected to the lower part of the housing 21, a feeding hopper 27 connected to the lower part of the grinding plate 23, a support shaft 24 rotatably connected to the top of the housing 21, grinding rollers 242 arranged on both sides of the lower end of the support shaft 24, and a steering mechanism connected to the upper end of the support shaft 24. The screening mechanism 3 includes a screen basket 31, a top plate 311 connected to the top of the screen basket 31, a corrugated pipe 312 connected to the upper middle part of the top plate 311, a third discharge pipe 313 provided below the screen basket 31, side plates 314 connected to both ends of the screen basket 31, multiple first springs 32 and second springs 33 respectively connected to the lower part of each of the two side plates 314, a cam 37 provided in the lower middle part of one of the side plates 314, a second motor 38 connected to one side of the cam 37, and a base 381 connected to the outer side of the second motor 38.

[0026] like Figure 1 and Figure 2As shown, a first discharge pipe 11 is connected to the bottom of the grinding machine 1. The first discharge pipe 11 passes through the top of the outer shell 21 and communicates with the inner cavity of the outer shell 21, so as to facilitate the injection of the ground rice bran into the refining mechanism 2. The outer side of the grinding machine 1 is connected to the bracket 22, which can provide stable support for the grinding machine 1.

[0027] like Figure 2 , Figure 3 and Figure 4 As shown, a drive shaft 241 is provided through the interior of the grinding roller 242 and is rotatably connected to the drive shaft 241. One end of the drive shaft 241 is connected to the support shaft 24, which facilitates the installation and maintenance of the drive shaft 241 and the grinding roller 242. A first motor 26 is connected to one side of the steering gear 25, which can provide power for the rotation of components such as the support shaft 24 and the drive shaft 241.

[0028] like Figure 2 , Figure 3 and Figure 4 As shown, a second discharge pipe 271 is connected to the lower middle part of the hopper 27. The lower end of the second discharge pipe 271 is connected to the upper end of the corrugated pipe 312, which facilitates the further finely ground rice bran meal to be injected into the sieve basket 31 for sieving.

[0029] like Figure 1 , Figure 2 and Figure 5 As shown, a limit rod 34 is provided in the middle of the first spring 32 and the second spring 33. A first mounting plate 35 and a second mounting plate 36 are respectively connected to the lower part of the first spring 32 and the second spring 33, which can provide support for the first spring 32, the second spring 33 and the screen basket 31.

[0030] like Figure 1 , Figure 2 and Figure 5 As shown, the limiting rods 34 below the two side plates 314 pass through the interior of the first mounting plate 35 and the second mounting plate 36 respectively and are slidably connected to the first mounting plate 35 and the second mounting plate 36 respectively, which can limit the movement direction of the screen basket 31 and the two springs. The base 381 is connected to the second mounting plate 36 and can provide support for the base 381 and the second motor 38.

[0031] The rice bran meal refining and grinding device disclosed in this embodiment, during use, uses a controller to start the grinder 1, the first motor 26, and the second motor 38 respectively. The third discharge pipe 313 is connected to the existing receiving device. The pipe at the connection between the existing receiving device and the third discharge pipe 313 is also a corrugated pipe 312 or a cloth bag. The rice bran meal to be refined and ground is injected into the grinder 1 through the feed pipe on the grinder 1. After being ground by the grinder 1, it is injected into the refining mechanism 2 through the first discharge pipe 11. The first motor 26 drives the support shaft 24 and the grinding roller 242 to rotate via the diverter 25. The rice bran meal falling onto the grinding plate 23 is ground by the grinding roller 242 and then falls through multiple holes inside the grinding plate 23 into the discharge hopper 27. It is then discharged through the second discharge pipe 271 below the discharge hopper 27 into the corrugated pipe 312 and then into the screen basket 31 via the corrugated pipe 312. The second motor 38 drives the convex... The rotation of wheel 37 causes one end of cam 37 to repeatedly contact and separate from side plate 314, repeatedly stretching and squeezing bellows 312, stretching the first spring 32 and the second spring 33, driving the screen basket 31 and its connecting parts to move up and down repeatedly, driving the limiting rod 34 to slide up and down inside the first mounting plate 35 and the second mounting plate 36, screening the bellows 312 inside the screen basket 31. Larger rice bran particles remain inside the screen basket 31, while smaller rice bran particles pass through the screen holes inside the screen basket 31 and fall into the third discharge pipe 313, which then discharges them into the original receiving device. After a period of time, one end of bellows 312 is separated from top plate 311, and top plate 311 is removed from above the screen basket 31. The remaining rice bran inside the screen basket 31 is cleaned out of the screen basket 31, and then top plate 311 is reset to restore the connection between bellows 312 and top plate 311 for continued use.

[0032] The grinding mill 1, first discharge pipe 11, outer shell 21, bracket 22, grinding plate 23, support shaft 24, transmission shaft 241, grinding roller 242, steering gear 25, first motor 26, hopper 27, second discharge pipe 271, sieve basket 31, top plate 311, corrugated pipe 312, third discharge pipe 313, first spring 32, second spring 33, limit rod 34, first mounting plate 35, second mounting plate 36, cam 37, second motor 38, and base 381 disclosed in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0033] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fine grinding apparatus for rice bran meal production, comprising a grinding mill, characterized in that, A refining mechanism is located below the grinding machine, and a screening mechanism is located below the refining mechanism. The refining mechanism includes a housing, with a support connected to the outer side of the housing. A grinding plate is connected to the lower part of the housing, and a hopper is connected to the lower part of the grinding plate. A support shaft is rotatably connected to the top of the housing. Grinding rollers are located on both sides of the lower end of the support shaft, and a steering mechanism is connected to the upper end of the support shaft. The screening mechanism includes a screen basket, with a top plate connected to the upper part of the screen basket. A corrugated pipe is connected to the upper center of the top plate. A third discharge pipe is located below the screen basket. Side plates are connected to both ends of the screen basket. Multiple first springs and second springs are respectively connected to the lower part of each of the two side plates. A cam is located in the lower center of one of the side plates. A second motor is connected to one side of the cam, and a base is connected to the outer side of the second motor.

2. The fine grinding device for rice bran meal production according to claim 1, characterized in that, The grinding machine is connected to a first discharge pipe at the bottom. The first discharge pipe passes through the top of the outer shell and communicates with the inner cavity of the outer shell. The outer side of the grinding machine is connected to a support.

3. The fine grinding device for rice bran meal production according to claim 1, characterized in that, A drive shaft is installed through the inside of the grinding roller and is rotatably connected to the drive shaft. One end of the drive shaft is connected to a support shaft, and a first motor is connected to one side of the steering gear.

4. The fine grinding device for rice bran meal production according to claim 1, characterized in that, A second discharge pipe is connected to the lower center of the hopper, and the lower end of the second discharge pipe is connected to the upper end of the corrugated pipe.

5. The fine grinding apparatus for rice bran meal production according to claim 1, characterized in that, Both the first spring and the second spring have limit rods in the middle, and the first spring and the second spring are respectively connected to the lower part of the first spring and the second spring.

6. The fine grinding apparatus for rice bran meal production according to claim 1, characterized in that, The limiting rods under the two side plates pass through the interior of the first mounting plate and the second mounting plate respectively and are slidably connected to the first mounting plate and the second mounting plate respectively. The base is connected to the second mounting plate.

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