Rice husking machine

Abstract

The utility model discloses a rice husking machine which comprises a frame body, a feeding hopper and two compression rollers, the feeding hopper is communicated with the top end of the frame body, the two compression rollers are rotationally arranged in the frame body, the rice husking machine further comprises a screen frame and two telescopic plates, the two telescopic plates are connected to the left wall and the right wall of the frame body respectively, and the screen frame is connected with the screen frame. Scraping brushes are arranged on the opposite sides of the two telescopic plates. The two pressing rollers are arranged in the frame body to grind rice so that the rice can be hulled, the window is formed in the front side of the frame body, the screen frame extends to the outer side of the window from the window, the driving mechanism is used for driving the screen frame to shake up and down continuously, meanwhile, the two pressing rollers are driven to rotate relatively, and the rice is shaken through the screen frame after being ground so that the rice can be hulled. And rice husks and rice are shaken up and are collected through the collecting assembly while being shaken up, the screen frame is obliquely arranged, the rice is conveyed in and out when the screen frame shakes, and the rice milling effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a rice milling machine. Background Technology

[0002] Rice milling is a process of removing the husks and whitening rice. It utilizes the mechanical force of machinery called a rice milling machine to remove the husks and whiten the rice. The rice milling machine primarily uses the collision and friction between the rice and a rice sieve to open and whiten the grains. A blower system further separates the rice husks from the rice grains and discharges them through the sieve holes. A rice milling machine is an indispensable piece of equipment in the rice processing industry, used to remove the husks, break down the rice, and separate the rice from the bran.

[0003] Existing rice milling machines typically use two milling rollers to grind the rice and remove the husks. However, the adhesion of rice husks interferes with the normal grinding action of the milling rollers, preventing the rice from being fully ground and affecting the milling effect. The hardness and shape of rice husks differ from those of rice grains, and when they adhere to the milling rollers, they easily cause rice breakage during the milling process, increasing the broken rice rate and reducing the whole rice rate. Moreover, simply using a fan to suck away the rice husks does not effectively absorb the husks at the bottom, resulting in an increase in the amount of husks and reducing the milling effect. Therefore, a rice milling machine is proposed to solve the above problems. Utility Model Content

[0004] This utility model provides a rice milling machine, including a frame, a feeding hopper, and two pressure rollers. The feeding hopper is connected to the top of the frame. The two pressure rollers are rotatably disposed inside the frame. The machine also includes a sieve frame and two telescopic plates. The two telescopic plates are respectively connected to the left and right walls of the frame. Each of the two telescopic plates has a scraper on its opposite side, which is in contact with the outer side of the two pressure rollers. The sieve frame is disposed inside the frame and extends to its front side. The front side of the sieve frame is inclined downward and has multiple discharge ports. A driving mechanism is disposed inside the frame. The driving mechanism drives the sieve frame to shake up and down continuously and drives the two pressure rollers to rotate relative to each other. A collecting assembly is disposed on the frame.

[0005] Preferably, the collection component includes a collection frame, a conduit, a collection frame, a blower, and a collection hopper. The collection frame is connected to the front side of the frame body, the collection frame is connected to the right side of the frame body, the collection hopper is disposed inside the collection frame, the blower is disposed at the top of the collection frame, and the conduit connects the collection frame and the collection frame.

[0006] Preferably, the inner wall of the frame is connected to a support plate, the bottom end of the screen frame is connected to a limiting rod and extends to the bottom of the support plate, the limiting rod is fitted with a spring, and the two ends of the spring are respectively connected to the top end of the support plate and the bottom end of the screen frame.

[0007] Preferably, the drive mechanism includes a motor, two first rotating rods, two gears, a second rotating rod, a cam, two pulleys, and a synchronous belt. A support frame is connected to the rear side of the frame. The motor is mounted on the support frame. The left first rotating rod is rotatably connected between the front sidewall of the frame and the support frame. One end of the right first rotating rod is coaxially connected to the output shaft of the motor, and the other end is rotatably connected to the front sidewall of the frame. Two pressure rollers are coaxially fixedly sleeved on the two first rotating rods. Two gears are coaxially fixedly sleeved on the two first rotating rods and mesh with each other. One end of the second rotating rod is rotatably connected to the left sidewall of the frame, and the other end extends to its right side. The cam is coaxially fixedly sleeved on the second rotating rod. Two pulleys are coaxially fixedly sleeved on the right first rotating rod and the second rotating rod, and are connected by the synchronous belt.

[0008] Preferably, the top wall of the frame is connected to two opposing first guide plates, and the left and right walls of the frame are each connected to a second guide plate.

[0009] Preferably, the left and right walls of the screen frame are connected to a third guide plate, and the front side of the screen frame is provided with a discharge port.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] The rice is crushed and dehulled by two pressure rollers inside the frame. A window is opened on the front side of the frame, and the screen frame extends from the window to the outside. The screen frame is driven to shake up and down continuously by a drive mechanism, while the two pressure rollers rotate relative to each other. After the rice is crushed, the screen frame shakes up the husks and rice. The rice is collected by a collection component while shaking. The screen frame is tilted, and the rice is conveyed in and out when the screen frame shakes, which improves the rice milling effect. Attached Figure Description

[0012] The accompanying drawings are provided to further understand 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 and do not constitute a limitation thereof.

[0013] In the attached diagram:

[0014] Figure 1 This is a schematic diagram of the structure of a rice milling machine proposed in this utility model;

[0015] Figure 2 This is a rear view of a rice milling machine proposed in this utility model;

[0016] Figure 3 This is a cross-sectional view of a rice milling machine proposed in this utility model;

[0017] Figure 4 This is a right-side sectional view of a rice milling machine proposed in this utility model;

[0018] Reference numerals in the attached drawings: 1. Frame; 2. Feed hopper; 3. Pressure roller; 41. Motor; 42. First rotating rod; 43. Gear; 44. Second rotating rod; 45. Cam; 46. Pulley; 47. Synchronous belt; 5. First guide plate; 61. Collection frame; 62. Guide tube; 63. Collection frame; 64. Fan; 65. Collection hopper; 7. Screen frame; 71. Support plate; 72. Limiting rod; 73. Spring; 74. Third guide plate; 8. Telescopic plate; 81. Scraper; 9. Second guide plate. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] like Figure 1-4As shown, the present invention proposes a rice milling machine, including a frame 1, a feeding hopper 2, and two pressure rollers 3. The feeding hopper 2 is connected to the top of the frame 1. The two pressure rollers 3 are rotatably disposed inside the frame 1. The machine also includes a sieve frame 7 and two telescopic plates 8. The two telescopic plates 8 are respectively connected to the left and right walls of the frame 1. Each side of the two telescopic plates 8 is provided with a scraper 81, which is in contact with the outer side of the two pressure rollers 3. The sieve frame 7 is disposed inside the frame 1 and extends to its front side. The front side of the sieve frame 7 is inclined downward and has multiple discharge ports. A driving mechanism is disposed inside the frame 1. The driving mechanism drives the sieve frame 7 to shake up and down continuously and drives the two pressure rollers 3 to rotate relative to each other. A collecting component is disposed on the frame 1.

[0022] In this invention, two pressure rollers 3 are installed inside the frame 1 to crush the rice and remove the husk. A window is opened on the front side of the frame 1, and a sieve frame 7 extends from the window to its outer side. The sieve frame 7 is driven to shake up and down continuously by a drive mechanism, while the two pressure rollers 3 are driven to rotate relative to each other. After crushing the rice, the husk and rice are shaken up by the shaking of the sieve frame 7. The rice is collected by a collection component while being shaken up. The outer side of the pressure rollers 3 is cleaned by a telescopic plate 8 and a scraper 81 to improve the quality of rice milling. The telescopic plate 8 is equipped with a spring so that the scraper 81 is in contact with the outer side of the pressure rollers 3.

[0023] In an optional embodiment, the collection assembly includes a collection frame 61, a conduit 62, a collection frame 63, a blower 64, and a collection hopper 65. The collection frame 61 is connected to the front side of the frame 1, the collection frame 63 is connected to the right side of the frame 1, the collection hopper 65 is disposed inside the collection frame 63, the blower 64 is disposed at the top of the collection frame 63, and the conduit 62 connects the collection frame 61 and the collection frame 63.

[0024] It should be noted that the collecting hopper 65 extends to the right side of the collecting frame 63. The collecting hopper 65 is equipped with a handle. When the rice husks are shaken, the blower 64 generates air force, which draws the husks into the collecting frame 63 through the collecting frame 61 and the conduit 62. The bottom end of the collecting frame 61 is connected to a support rod for support.

[0025] In an optional embodiment, a support plate 71 is connected to the inner wall of the frame 1, and a limiting rod 72 is connected to the bottom end of the screen frame 7 and extends to the bottom of the support plate 71. A spring 73 is sleeved on the limiting rod 72, and the two ends of the spring 73 are connected to the top end of the support plate 71 and the bottom end of the screen frame 7, respectively.

[0026] In an optional embodiment, the drive mechanism includes a motor 41, two first rotating rods 42, two gears 43, a second rotating rod 44, a cam 45, two pulleys 46, and a timing belt 47. A support frame is connected to the rear side of the frame 1. The motor 41 is mounted on the support frame. The left first rotating rod 42 is rotatably connected between the front side wall of the frame 1 and the support frame. One end of the right first rotating rod 42 is coaxially connected to the output shaft of the motor 41, and the other end is rotatably connected to the front side wall of the frame 1. Two pressure rollers 3 are coaxially fixedly sleeved on the two first rotating rods 42. Two gears 43 are coaxially fixedly sleeved on the two first rotating rods 42, and the two gears mesh with each other. One end of the second rotating rod 44 is rotatably connected to the left side wall of the frame 1, and the other end extends to its right side. The cam 45 is coaxially fixedly sleeved on the second rotating rod 44. Two pulleys 46 are coaxially fixedly sleeved on the right first rotating rod 42 and the second rotating rod 44, and are connected by a timing belt 47.

[0027] It should be noted that during use, the start motor 41 drives the first rotating rod 42 on the right to rotate, which in turn drives the second rotating rod 42 to rotate through the two gears 43, causing the two pressure rollers 3 to rotate relative to each other. The two pulleys 46 and the synchronous belt 47 drive the second rotating rod 44 to rotate, which in turn drives the cam 45 to rotate, thereby continuously lifting and lowering the screen frame 7, causing it to shake continuously and shake up the rice and husks above.

[0028] In an optional embodiment, the top wall of the frame 1 is connected to two opposing first guide plates 5, and the left and right walls of the frame 1 are each connected to a second guide plate 9.

[0029] In an optional embodiment, the left and right walls of the screen frame 7 are connected to a third guide plate 74, and the front side of the screen frame 7 is provided with a discharge port.

[0030] 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 rice milling machine, comprising a frame (1), a feed hopper (2), and two pressure rollers (3), wherein the feed hopper (2) is connected to the top of the frame (1), and the two pressure rollers (3) are rotatably disposed inside the frame (1), characterized in that, It also includes a screen frame (7) and two telescopic plates (8). The two telescopic plates (8) are respectively connected to the left and right walls of the frame (1). Each of the two telescopic plates (8) is provided with a scraper (81) on the opposite side and is attached to the outer side of the two pressure rollers (3). The screen frame (7) is located inside the frame (1) and extends to its front side. The front side of the screen frame (7) is inclined downward and has multiple discharge ports. A drive mechanism is provided inside the frame (1). The drive mechanism drives the screen frame (7) to shake up and down continuously and drives the two pressure rollers (3) to rotate relative to each other. A collection component is provided on the frame (1).

2. A rice milling machine according to claim 1, characterized in that, The collection assembly includes a collection frame (61), a conduit (62), a collection frame (63), a blower (64), and a collection hopper (65). The collection frame (61) is connected to the front side of the frame (1), the collection frame (63) is connected to the right side of the frame (1), the collection hopper (65) is disposed inside the collection frame (63), the blower (64) is disposed at the top of the collection frame (63), and the conduit (62) connects the collection frame (61) and the collection frame (63).

3. A rice milling machine according to claim 1, characterized in that, The inner wall of the frame (1) is connected to a support plate (71). The bottom end of the screen frame (7) is connected to a limiting rod (72) and extends to the bottom of the support plate (71). A spring (73) is sleeved on the limiting rod (72). The two ends of the spring (73) are connected to the top end of the support plate (71) and the bottom end of the screen frame (7), respectively.

4. A rice milling machine according to claim 1, characterized in that, The drive mechanism includes a motor (41), two first rotating rods (42), two gears (43), a second rotating rod (44), a cam (45), two pulleys (46), and a synchronous belt (47). A support frame is connected to the rear side of the frame (1). The motor (41) is mounted on the support frame. The left first rotating rod (42) is rotatably connected between the front side wall of the frame (1) and the support frame. One end of the right first rotating rod (42) is coaxially connected to the output shaft of the motor (41), and the other end is rotatably connected to the front side wall of the frame (1). The pressure rollers (3) are coaxially fixedly sleeved on the two first rotating rods (42), and the two gears (43) are coaxially fixedly sleeved on the two first rotating rods (42) and mesh with each other. One end of the second rotating rod (44) is rotatably connected to the left side wall of the frame (1), and the other end extends to its right side. The cam (45) is coaxially fixedly sleeved on the second rotating rod (44), and the two pulleys (46) are coaxially fixedly sleeved on the right first rotating rod (42) and the second rotating rod (44) and are connected by the synchronous belt (47).

5. A rice milling machine according to claim 1, characterized in that, The top wall of the frame (1) is connected to two opposing first guide plates (5), and the left and right walls of the frame (1) are each connected to a second guide plate (9).

6. A rice milling machine according to claim 1, characterized in that, The left and right walls of the screen frame (7) are connected to a third guide plate (74), and the front side of the screen frame (7) is provided with a discharge port.

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