High-efficiency rice hulling and milling device

Abstract

The utility model provides a kind of high-efficiency huller rice milling device for rice processing, it is related to rice mill structure field, and it includes: drum, and the support ring one and support ring two respectively located drum left and right sides, support ring one and support ring two are laid with support, drum is rotated by motor drive;Compression body is suspended in the inside of drum, the both ends of compression body are connected on support ring one, support ring two by threaded part, by screwing the threaded of both ends of compression body, let the axis of compression body and drum be parallel or intersect, compression body is laid with air path system, the air inlet of air path system is communicated with air pump, and the air outlet is arranged on the surface of compression body to let airflow adhere to the surface of compression body and move, the lower half of ring section one is inclined plane, can effectively guide starch layer into the peeling position of drum, improve the rate of processing, the design of air path system, can effectively reduce the interference between wind direction and compression body, improve the efficiency that bran moves along wind power.

Description

Technical Field

[0001] This utility model relates to the field of rice milling machine structure, and in particular to a high-efficiency rice hulling and milling device for rice processing. Background Technology

[0002] The pressure plates used to apply pressure in rice milling machines are usually fixed and rigidly installed, which cannot adjust the pressure gradient according to changes in rice grain density, moisture content, or the whitening process in the whitening chamber. This can sometimes lead to local overload or insufficient pressure. In addition, traditional rice milling machines without air ducts usually need to output the whitened mixture (rice grains, bran powder, broken rice, etc.) to external equipment for centralized separation.

[0003] Some rice milling machines are equipped with rigid pressure plates, but the closed structure of the existing pressure plates hinders airflow penetration, forcing the wind system to rely on an external high-pressure fan to forcibly remove the bran, resulting in a surge in energy consumption and low bran removal efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-efficiency rice hulling and milling device for rice processing. The technical problem to be solved by the present invention is that the existing rice milling machine pressure plate cannot achieve dynamic and flexible adaptation of milling pressure, and lacks structured coordination with the pneumatic cleaning system, which makes it difficult to balance the peeling efficiency, embryo retention rate and energy consumption index.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency rice hulling and milling device for rice processing, comprising: a roller with its output end lower and inclinedly arranged on the ground, and support rings one and two located on the left and right sides of the roller respectively, with brackets arranged on support rings one and two, and the roller being driven to rotate by a motor; a pressing body suspended inside the roller, with both ends of the pressing body connected to support rings one and two by threaded parts, and by tightening the threads at both ends of the pressing body, the axes of the pressing body and the roller are either parallel or intersecting, and an air passage system is arranged on the pressing body, with the air inlet of the air passage system connected to an air pump, and the air outlet opened on the surface of the pressing body so that the airflow moves along the surface of the pressing body.

[0006] In a preferred embodiment, the first support ring includes a ring section, a feed inlet, and a hanger rod. The ring section is rotatably connected to one end face of the roller via a bearing. The upper part of the ring section has a feed inlet. The hanger rod is used to connect the pressing body and the ring section. The end face of the ring section away from the roller is closed. The second support ring includes a ring section, a discharge inlet, and a hanger rod. The ring section is rotatably connected to the other end face of the roller via a bearing. The lower part of the ring section has a discharge inlet. The hanger rod is used to connect the pressing body and the ring section. The end face of the ring section away from the roller has a peeling port.

[0007] In a preferred embodiment, the lower side of the first ring is inclined and smoothly transitions to the inner wall of the roller.

[0008] In a preferred embodiment, the first and second booms have the same structure, each including a threaded rod, a rolling element and a cage. Cages are installed on both sides of the rolling element. The two cages are fixedly connected to the press body and the threaded rod, respectively. The threaded rod is threadedly connected to the corresponding ring section one or ring section two.

[0009] In a preferred embodiment, the air duct system includes an air inlet, an air duct, and an air outlet. The air inlet is located on the end face of the hollow press body and is used to connect with the port of the air pump through a flexible pipe. The air duct is located on the surface of the press body and is used to output air in the direction of the second support ring. An air outlet is located at the intersection of the press body and the air duct and is used to discharge the airflow inside the press body along the air duct.

[0010] In a preferred embodiment, the lower part of the press body is semi-cylindrical, and the center of curvature of the roller and the press body at the same cross section coincide.

[0011] In a preferred embodiment, several air ducts are opened in a straight line on the arc-shaped surface of the lower half of the press body, and the extension direction of the air ducts is from the first support ring to the second support ring.

[0012] In a preferred embodiment, the shape of the press-fit body is cylindrical.

[0013] In a preferred embodiment, the air duct is formed in a spiral shape on the outer surface of the press body.

[0014] In a preferred embodiment, the inner wall of the roller is provided with a plurality of protrusions, the height of which is less than 1 mm and the diameter of which is 0.3 mm.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. The lower half of ring section one is an inclined surface, which can effectively guide the aleurone layer to the peeling position of the roller, thereby increasing the processing speed without increasing the overall inclination of the roller, support ring one, and support ring two.

[0017] 2. The lower half of the pressing body is designed as an arc shape and is concentric with the roller, which can improve the uniformity of the pressure on the rice grains from both sides of the roller and the pressing body.

[0018] 3. The raised dots on the inner wall of the drum can effectively reduce the probability of broken rice grains appearing.

[0019] 4. The design of the airflow system can effectively reduce the interference between the wind direction and the compressed body, and improve the efficiency of the rice bran powder moving along the wind. Attached Figure Description

[0020] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0021] Figure 1 This is a structural diagram of the roller in this utility model.

[0022] Figure 2 for Figure 1 A magnified view of part C.

[0023] Figure 3 This is the main view of the scrolling section in this utility model.

[0024] Figure 4 This is a structural diagram of the medium-pressure assembly of this utility model.

[0025] Figure 5 This is another perspective view of the medium-pressure assembly of this utility model.

[0026] Figure 6 for Figure 5 A magnified view of part A in the image.

[0027] Figure 7 This is a structural diagram of the cylindrical press-fit body in this utility model.

[0028] Figure 8 for Figure 7 A magnified view of part B in the image.

[0029] The attached diagram is labeled as follows: 10, roller; 20, support ring one; 21, ring section one; 22, feed inlet; 23, suspension rod one; 24, closed plate; 30, support ring two; 31, ring section two; 32, discharge port; 33, suspension rod two; 34, open plate; 40, press body; 50, air circulation system; 51, air inlet; 52, air duct; 53, air outlet. Detailed Implementation

[0030] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0031] Example

[0032] like Figures 1-8 This device includes a roller 10, a first support ring 20, a second support ring 30, a pressing body 40, and other necessary equipment.

[0033] A driven gear is fixed on the outer side of the drum 10. It is also equipped with a motor and a drive gear to drive the driven gear to rotate. The output shaft of the motor, which is connected to the mains power, is fixed to the drive gear. Under the meshing relationship of the drive and driven gears, the driven gear is driven to rotate, and the entire drum 10 is driven to rotate at a certain speed.

[0034] Preferably, the inner wall of the roller 10 has a convex surface with a diameter of 0.3 mm and a height of less than 1 mm relative to the inner wall of the roller 10. The advantage of this design is that, compared to the traditional regular curved surface of the roller wall, the rice grains generate concentrated shear force during sliding, which can easily lead to skin tearing or grain breakage. The convex surface of this structure can support the rice grains to form a tiny rolling gap, and the friction process is accompanied by the rotation of the rice grains, reducing damage caused by direct shearing.

[0035] Support ring 1 20 and support ring 2 30 are located on both sides of the drum 10, respectively. They are used for feeding and discharging materials on the one hand, and for supporting the rotating drum 10 on the other.

[0036] The support ring 20 includes a ring section 21, a feed inlet 22, and a closing plate 24. The ring section 21 is rotatably connected to one end of the roller 10 via a bearing, and the internal connection surfaces of the roller 10 and the ring section 21 are smoothly connected. The feed inlet 22 is opened at the top of the ring section 21 to introduce material into the roller 10. The closing plate 24 is fitted with the ring section 21 to seal the end opening of the ring section 21 and prevent rice grains from accidentally flying out during peeling.

[0037] Preferably, the bottom of the ring section 21 is cold-rolled during processing to form an inclined arc surface, which can slide quickly along the inclined surface of the bottom to fully enter the roller 10 when the material is fed.

[0038] The second support ring 30 includes a second ring section 31, a discharge port 32, and an opening plate 34. The second ring section 31 is rotatably connected to the other end of the roller 10 via a bearing. The internal connection surfaces of the roller 10 and the second ring section 31 are smoothly connected. The discharge port 32 is opened at the bottom of the second ring section 31 to discharge the material from the roller 10. The opening plate 34 is fitted with the second ring section 31 to seal the end face opening of the second ring section 31. At the same time, a peeling port is opened on the opening plate 34 along the axis of the roller 10. The peeling port is used to output the paste powder layer, and the discharge port 32 is used to output rice grains.

[0039] It should be noted that ring section 21 and ring section 31 are stationary during use. Therefore, brackets can be installed on ring section 21 and ring section 31 to stably support the entire structure, and the feed port 22 and the discharge port 32 can be arranged in a suitable position.

[0040] A pressing body 40 is suspended inside the drum 10. The two ends of the pressing body 40 are connected to the corresponding ring section 21 and ring section 31 by a first hanger 23 and a second hanger 33, respectively.

[0041] The first and second suspension rods 23 and 33 have the same structure, both including threaded rods, rolling elements, and cages. Rolling elements are installed inside the upper and lower cages, allowing for free movement within their respective ranges. The lower cage is fixed to the top of the pressing body 40, while the upper cage is fixed to the threaded rods. The two threaded rods are threadedly connected to ring joints 21 and 31, respectively. By rotating the threaded rods at both ends of the pressing body 40, the threaded rods can move up and down within ring joints 21 and 31, adjusting the angle of the pressing body 40 on the roller 10, or making the pressing body 40 parallel to the axis of the roller 10, or tilting the pressing body 40 to the axis of the roller 10, thereby adjusting the gap between the roller 10 and the pressing body 40.

[0042] The rolling elements and the retainer form a ball bearing. The way the ball bearing is connected to any component is existing technology and will not be described in detail.

[0043] It should be noted that when the axes of the roller 10 and the pressing body 40 are aligned, the lower half of the pressing body 40 and the interior of the roller 10 are concentric circles. Due to gravity, the rice grains are mostly processed and peeled in the gap between the lower half of the roller 10 and the pressing body 40. Therefore, the design of the aligning curvature centers of the lower half is beneficial for the rice grains to be pressed evenly.

[0044] The first embodiment: the press body 40 is cylindrical.

[0045] In the second embodiment, the bottom of the press body 40 is a semi-cylindrical shape, and the top is a beveled tip. The semi-cylindrical shape at the bottom does not hinder the normal peeling process, while the beveled tip allows rice grains to move back to the bottom when they move to the upper part of the press body 40 under centrifugal force. It should be noted that the probability of rice grains moving to the upper part is relatively small.

[0046] Furthermore, in order to resolve the interference between the wind power system and the pressure body 40, placing the wind path system 50 on the pressure body 40 can effectively solve this problem.

[0047] The specific airflow system 50 includes an air inlet 51, an air duct 52, and an air outlet 53. The interior of the press body 40 is hollow. An air inlet 51 is provided on one end face of the press body 40. The air inlet 51 is used to connect with the port of the flexible pipe. An air duct 52 is provided on the surface of the press body 40. The air duct 52 is connected to the internal cavity of the press body 40 through the air outlet 53. The air outlet 53 is embedded in the end of the air duct 52. In this way, when the air pump injects gas into the press body 40 through the flexible pipe, the gas will be output from the air outlet 53 and move towards the discharge port 32 along the opening path of the air duct 52, reducing the degree of interference between the press body 40 and the airflow system 50.

[0048] Specifically, based on the first scheme, a spiral air duct 52 is opened on the outer surface of the cylindrical press body 40, which can guide the aleurone layer to move along the spiral trajectory and gradually move towards the peeling port.

[0049] Specifically, based on the second scheme, a straight air duct 52 is opened on the arc surface of the half-cylinder of the press body 40, which can guide the aleurone layer to move along the spiral trajectory and gradually move towards the peeling port.

[0050] In summary, the overall operating principle is as follows: when the motor is turned on, it drives the drum 10 to rotate through the gear set. The user puts the material in through the feed port 22. The material enters the drum 10 along the inclined surface of the inclined ring 21. The rotation of the drum 10 will cause the rice grains to tumble in the gap between the drum 10 and the pressing body 40, removing the aleurone layer on the surface of the rice grains. Then, based on the inclined drum 10, the material gradually moves to the discharge port 32 and falls down by gravity and the push of the rice grains that enter later.

[0051] The end of the inclined roller 10 with the second support ring 30 facing downwards.

[0052] The advantages of the above design are:

[0053] 1. The lower half of ring section 21 is an inclined surface, which can effectively guide the abrasive powder layer to the peeling position of roller 10, thereby increasing the processing speed without increasing the overall inclination of roller 10, support ring 20, and support ring 30.

[0054] 2. The lower half of the pressing body 40 is designed to be arc-shaped and has a concentric circle structure with the roller 10, which can improve the uniformity of the pressure on the rice grains from both sides of the roller 10 and the pressing body 40.

[0055] 3. The raised dots on the inner wall of the roller 10 can effectively reduce the probability of broken rice grains appearing.

[0056] 4. The design of the air path system 50 can effectively reduce the interference between the wind direction and the compressed body 40, and improve the efficiency of the bran powder moving along the wind.

[0057] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A high-efficiency rice hulling and milling device for rice processing, characterized in that, include: The output end is lower and inclined on the ground, and there are support rings 1 (20) and 2 (30) on the left and right sides of the roller (10). Supports are provided on support rings 1 (20) and 2 (30). The roller (10) is driven to rotate by a motor. The pressing body (40) is suspended inside the roller (10). The two ends of the pressing body (40) are connected to support rings 1 (20) and 2 (30) by threaded parts. By screwing the threads at both ends of the pressing body (40), the axes of the pressing body (40) and the roller (10) are either parallel or intersecting. The pressing body (40) is provided with an air passage system (50). The air inlet of the air passage system (50) is connected to the air pump, and the air outlet is opened on the surface of the pressing body (40) so that the airflow moves along the surface of the pressing body (40).

2. The high-efficiency rice hulling and milling device for rice processing according to claim 1, characterized in that, The first support ring (20) includes a first ring section (21), a feed inlet (22), and a first hanging rod (23). The first ring section (21) is rotatably connected to one end face of the roller (10) through a bearing. The feed inlet (22) is provided at the upper part of the first ring section (21). The first hanging rod (23) is used to connect the pressing body (40) and the first ring section (21). The end face of the first ring section (21) away from the roller (10) is closed. The second support ring (30) includes a second ring section (31), a discharge port (32), and a second hanging rod (33). The second ring section (31) is rotatably connected to the other end face of the roller (10) through a bearing. The discharge port (32) is provided at the lower part of the second ring section (31). The second hanging rod (33) is used to connect the pressing body (40) and the second ring section (31). The end face of the second ring section (31) away from the roller (10) has a peeling port.

3. The high-efficiency rice hulling and milling device for rice processing according to claim 2, characterized in that, The lower surface of the ring section (21) is inclined and smoothly transitions with the inner wall of the roller (10).

4. The high-efficiency rice hulling and milling device for rice processing according to claim 2, characterized in that, The structure of the first (23) and the second (33) of the lifting rod is the same, both including a threaded rod, a rolling element and a retainer. The two sides of the rolling element are equipped with retainers. The two retainers are fixedly connected to the pressing body (40) and the threaded rod respectively. The threaded rod is threadedly connected to the corresponding ring section one (21) or ring section two (31).

5. The high-efficiency rice hulling and milling device for rice processing according to claim 1, characterized in that, The airflow system (50) includes an air inlet (51), an air duct (52), and an air outlet (53). The air inlet (51) is located on the end face of the hollow press body (40) and is used to connect with the port of the air pump through a flexible pipe. The air duct (52) is located on the surface of the press body (40) and is used to output air towards the second support ring (30). An air outlet (53) is provided at the intersection of the press body (40) and the air duct (52). The air outlet (53) is used to export the airflow inside the press body (40) along the air duct (52).

6. The high-efficiency rice hulling and milling device for rice processing according to claim 5, characterized in that, The lower part of the press body (40) is semi-cylindrical, and the curvature centers of the roller (10) and the press body (40) at the same cross section coincide.

7. The high-efficiency rice hulling and milling device for rice processing according to claim 6, characterized in that, Several air ducts (52) are opened in a straight line on the arc surface of the lower half of the press body (40), and the extension direction of the air ducts (52) is from the first branch ring (20) to the second branch ring (30).

8. The high-efficiency rice hulling and milling device for rice processing according to claim 5, characterized in that, The shape of the press body (40) is cylindrical.

9. A high-efficiency rice hulling and milling device for rice processing according to claim 8, characterized in that, The air duct (52) is spirally formed on the outer surface of the press body (40).

10. A high-efficiency rice hulling and milling device for rice processing according to claim 1, characterized in that, The inner wall of the roller (10) is provided with several protrusions, the height of which is less than 1 mm and the diameter of which is 0.3 mm.

Images