Automatic brown rice belt adjusting mechanism
The automatic adjustment mechanism of the brown rice belt solves the problem of incomplete separation of paddy and brown rice, achieves efficient separation of paddy and brown rice, and reduces brown rice waste and equipment costs.
Patent Information
- Application Number
- CN202422138187.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In the prior art, during the separation of paddy and brown rice, the brown rice is mixed with the paddy, resulting in incomplete separation, causing waste or requiring additional equipment processing, which increases costs.
An automatic adjustment mechanism for a brown rice belt is designed, which includes a discharge unit, a shielding unit and a return device. The width of the brown rice belt is monitored by an online detection device, and the width of the brown rice belt is adjusted using the shielding unit and the return device to ensure the separation effect of brown rice and paddy.
Without adding equipment, the quality of brown rice separation is improved, waste is reduced, costs are lowered, and efficient separation of paddy and brown rice is achieved.
Smart Images
Figure CN223325013U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rough rice screening, in particular to an automatic adjustment mechanism for a rough rice belt. Background Art
[0002] Brown rice outside the rice grains is the brown rice grains mixed in the rice. During the threshing, drying, and transportation processes, the rice grains are easily hulled due to the action of mechanical external forces, forming brown rice that is mixed in with normal rice grains. With the increasing application of agricultural mechanization, the content of brown rice outside the rice grains in the newly harvested rice grains is constantly increasing, far exceeding the national standard of 2%.
[0003] According to the requirements of the grain storage industry, the brown rice content of rice entering and leaving the warehouse should be below 2%. At present, the brown rice content of raw grain is generally 5-7%. Therefore, equipment is needed to separate brown rice and paddy. At present, gravity rice-brown separation screen is generally used to separate paddy and brown rice.
[0004] During the normal separation process, the gravity brown rice separator will separate brown rice and paddy according to their different physical properties, such as Figure 3 As shown, the paddy and brown rice are separated on either side of the discharge screen, with a mixed area forming between them. The material in this mixed area is eventually returned to the equipment via an elevator for secondary screening, while the brown rice is discharged through the leftmost clean brown outlet. However, because only about 7% of the brown rice is hulled during the natural process, separating the paddy and brown rice requires a wide, pure brown rice band on the discharge screen. Otherwise, the brown rice will mix with the mixed material in the middle, resulting in a high concentration of paddy (10%-50%) in the discharged brown rice.
[0005] There are currently two processing options. The first is to not process the separated brown rice, resulting in waste, or to send it to another device for secondary separation of the brown rice, resulting in increased overall costs.
[0006] Based on this, the utility model designs an automatic adjustment mechanism for a brown rice belt to solve the above problems. Utility Model Content
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic adjustment mechanism for a brown rice belt, installed at the discharge end of a gravity grain-rough separation screen, for controlling the width of the brown rice belt on the gravity grain-rough separation screen, the automatic adjustment mechanism for the brown rice belt comprising: a discharge unit, a shielding unit and a return device; the discharge unit comprises a first chute, a second chute and a third chute, the first chute, the second chute and the third chute are arranged below the discharge end of the gravity grain-rough separation screen, and are arranged in sequence along the width direction of the gravity grain-rough separation screen, for respectively receiving grains discharged from different positions of the discharge end of the gravity grain-rough separation screen; the shielding unit comprises a first state that shields the top inlet of the third chute and guides the grains above the third chute into the second chute, and a second state that opens the top inlet of the third chute; the return device is arranged at the bottom end of the second chute for returning the grains discharged from the bottom outlet of the second chute to the gravity grain-rough separation screen for separation again.
[0008] As a further solution of the present invention, an online detection device is further included. The online detection device is arranged above the gravity rice-rice separation screen and is used to detect the width of the brown rice belt on the gravity rice-rice separation screen.
[0009] As a further solution of the present invention, the discharge end of the gravity grain-rough separation screen is provided with a material plate, and the first chute, the second chute and the third chute are all fixed at the bottom end of the material plate, and the material plate is used to guide the flow of grain discharged from the gravity grain-rough separation screen to the first chute, the second chute and the third chute.
[0010] As a further solution of the present invention, the shielding unit includes a baffle and a driving member. The baffle is movably arranged at the top inlet of the third chute to shield the top inlet of the third chute. The driving member is arranged on the material plate to drive the baffle to move to realize the transformation between the first state and the second state of the shielding unit.
[0011] As a further solution of the present invention, the baffle is rotatably arranged on the side of the top inlet of the third chute, and the driving member is used to drive the baffle to rotate, so that the baffle rotates and fits against the top surface of the third chute to achieve the first state of the shielding unit, and the baffle rotates to move away from the top surface of the third chute to achieve the second state of the shielding unit.
[0012] As a further solution of the present invention, the baffle is slidingly arranged at the top inlet of the third chute, and the driving member is used to drive the baffle to slide, so that the vertical projection of the top inlet of the third chute is within the vertical projection of the baffle through the sliding of the baffle to realize the first state of the shielding unit, and the vertical projection of the top inlet of the third chute is misaligned with the vertical projection of the baffle through the sliding of the baffle to realize the second state of the shielding unit.
[0013] As a further solution of the present invention, the baffle is arranged on a side of the top inlet of the third chute close to the second chute.
[0014] As a further solution of the present invention, the driving member is arranged on the back side of the side of the material plate that is used to contact the grains.
[0015] As a further solution of the present invention, the online detection equipment adopts an image processing sensor.
[0016] As a further solution of the present invention, the material return device adopts an elevator or a conveyor belt.
[0017] The utility model has the following beneficial effects:
[0018] The device adds a shielding unit on the third chute. The shielding unit includes a first state in which the top inlet of the third chute is shielded and the grains above the third chute are guided into the second chute, and a second state in which the top inlet of the third chute is opened. When the brown rice content in the raw grain is low and a pure brown rice belt cannot be formed on the discharge screen of the gravity brown rice separation screen, the third chute is shielded by the shielding unit, so that the grains originally entering the third chute enter the second chute, and return to the gravity brown rice separation screen through the return device for separation again. At this time, the first chute still performs the normal rice belting. The discharge of the material will make the rice content in the whole grains lower and lower, and correspondingly, the brown rice content in the whole grains will be higher and higher, until the brown rice content in the grains reaches a level that can form an effective brown rice belt on the gravity rice-brown separation screen. The shielding unit operates from the first state to the second state. At this time, the top inlet of the third chute is open, and the brown rice belt can enter the third chute normally, thereby ensuring the quality of the brown rice belt during rice-brown separation. The gravity rice-brown separation screen is used to separate the brown rice without adding additional processing equipment, which effectively utilizes the brown rice and prevents waste of brown rice.
[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0022] Figure 2 This is a second example diagram of this shielding unit.
[0023] Figure 3 It is a structural schematic diagram of the medium gravity rice roughness separation screen of the utility model.
[0024] Legend:
[0025] 1. Gravity rice-rough separation screen; 21. First chute; 22. Second chute; 23. Third chute; 24. Material plate; 3. Online detection equipment; 41. Baffle; 42. Driving part. DETAILED DESCRIPTION
[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.
[0027] See also Figure 1-3 The utility model provides an automatic adjustment mechanism for a brown rice belt, which is installed at the discharge end of a gravity grain-brown separation screen 1 and is used to control the width of the brown rice belt on the gravity grain-brown separation screen 1;
[0028] Specifically, the brown rice belt automatic adjustment mechanism includes a discharge unit, a shielding unit and a return unit;
[0029] like Figure 1 As shown, the discharging unit includes a first chute 21, a second chute 22 and a third chute 23. The first chute 21, the second chute 22 and the third chute 23 are arranged below the discharge end of the gravity grain-rough separation screen 1 and are arranged in sequence along the width direction of the gravity grain-rough separation screen 1 to respectively receive grains discharged from different positions of the discharge end of the gravity grain-rough separation screen 1. When the gravity grain-rough separation screen 1 is working, the grains will be divided into a rice belt of pure rice and a brown rice belt of pure brown rice on the gravity grain-rough separation screen 1 along the width direction of the gravity grain-rough separation screen 1, and in the pure rice belt and There will be an unseparated grain-rice belt containing rice and brown rice between the pure brown rice belts. When the grains leave the gravity grain-rice separation screen 1, they will enter the first chute 21, the second chute 22 and the third chute 23 respectively under the action of gravity. Since the first chute 21, the second chute 22 and the third chute 23 are arranged along the width direction of the gravity grain-rice separation screen 1, the rice belt, the grain-rice belt and the brown rice belt screened out by the grain-rice separation screen will enter the first chute 21, the second chute 22 and the third chute 23 respectively to achieve final separation.
[0030] like Figure 1-2 As shown, in this example, the paddy belt enters the first chute 21, the rough rice belt enters the second chute 22, and the brown rice belt enters the third chute 23.
[0031] The shielding unit includes a first state for shielding the top inlet of the third chute 23 and guiding the grains above the third chute 23 into the second chute 22, and a second state for opening the top inlet of the third chute 23. When the grains are separated by the gravity grain-rice separation screen 1, if the content of brown rice in the grains is low, the brown rice cannot effectively form a brown rice belt, and will be mixed with the grain-rice belt in the middle position, so that the brown rice that finally enters the third chute 23 contains a large amount of rice, resulting in unqualified brown rice content and the need for rework. Therefore, when the brown rice content in the grains is reduced and the brown rice belt cannot be effectively formed on the gravity grain-rice separation screen 1, the shielding unit operates to the first state, shielding the top inlet of the third chute 23 by the shielding unit, so that the rice All the grains on the left side of the belt enter the second chute 22, and the bottom end of the second chute 22 is connected to the return material device, which can send all the grains leaving from the bottom outlet of the second chute 22 back to the gravity rice-rice separation screen 1 for re-separation. At this time, the first chute 21 is still discharging the rice belt normally, so the rice content in the whole grain will become lower and lower. Correspondingly, the content of brown rice in the whole grain will become higher and higher, until the brown rice content in the grain reaches a level that can form an effective brown rice belt on the gravity rice-rice separation screen 1. The shielding unit runs from the first state to the second state. At this time, the top inlet of the third chute 23 is open, and the brown rice belt can enter the third chute 23 normally, thereby ensuring the quality of the brown rice belt during rice-rice separation.
[0032] like Figure 1 As shown, a material plate 24 is fixedly installed at the discharge end of the gravity grain-rough separation screen 1, and the first chute 21, the second chute 22 and the third chute 23 are all fixed at the bottom end of the material plate 24. During operation, the grains discharged from the discharge end of the gravity grain-rough separation screen 1 will contact the surface of the material plate 24, and the material plate 24 is in an inclined state. Therefore, the grains falling on the material plate 24 will move downward along the surface of the material plate 24, and finally enter the first chute 21, the second chute 22 and the third chute 23. The grains are guided to move by the material plate 24, so that the grains remain in a stable state from leaving the grain-rough separation screen to entering the first chute 21, the second chute 22 and the third chute 23, thereby improving the separation effect.
[0033] Specifically, the shielding unit includes a baffle 41 and a driving member 42 . The baffle 41 is movably provided at the top inlet of the third chute 23 for shielding the top inlet of the third chute 23 . The driving member 42 is provided on the material plate 24 for driving the baffle 41 to move.
[0034] Figure 1An installation example of the baffle 41 is shown. In this example, the baffle 41 is rotatably arranged on the side of the top opening of the third chute 23. In this example, the driving member 42 is a cylinder, which is hinged to the material plate 24. The piston rod of the cylinder is hinged to the baffle 41, and the baffle 41 is driven to rotate by the action of the cylinder piston rod. When the baffle 41 covers the top inlet of the third chute 23, the baffle 41 will close the top inlet of the third chute 23, so that grain cannot enter the third chute 23, and the top surface of the third chute 23 is an inclined surface, and the side of the top surface of the third chute 23 close to the second chute 22 is inclined downward. It is inclined, which makes it possible that when the baffle 41 covers the top inlet of the third chute 23, the grains originally entering the third chute 23 will enter the second chute 22 under the guidance of the top surface of the third chute 23 and the baffle 41, thereby realizing the first state of the shielding unit. When the brown rice belt on the gravity grain-brown separation screen 1 reaches a stable state, the cylinder piston rod reverses the action to rotate the baffle 41 to open the top inlet of the third chute 23, so that the brown rice belt can normally enter the third chute 23, thereby realizing the second state of the shielding unit. Optionally, the driving member 42 can adopt a motor to directly drive the baffle 41 to rotate through the motor output shaft.
[0035] Figure 3 A second installation example of the baffle 41 is shown. In this example, the baffle 41 is slidably set on the side of the top opening of the third chute 23. In this example, the driving member 42 is a cylinder, which is fixed to the material plate 24. The piston rod of the cylinder is fixedly connected to the baffle 41. The baffle 41 is directly driven to move by the action of the cylinder piston rod to realize the closing or opening of the top opening of the third chute 23, and realize the switching between the first state and the second state.
[0036] Furthermore, in the two installation examples of the baffle 41 mentioned above, the baffle 41 is installed on the side of the top opening of the third chute 23 close to the second chute 22, so that when the baffle 41 moves to open the top opening of the third chute 23, the amplitude of the opening can be controlled, that is, the width of the top opening of the third chute 23 can be controlled according to the width of the brown rice belt, thereby achieving accurate material receiving and further improving the final quality of the brown rice.
[0037] Specifically, such as Figure 3 As shown, in some examples, an online detection device 3 is installed on the gravity brown rice separation screen 1, and the width of the brown rice belt is monitored in real time by the online detection device 3. The first state and the second state of the shielding unit are controlled by the detection results of the online detection device 3 to realize fully automatic adjustment of the equipment.
[0038] In some examples, the driving member 42 is disposed on the back side of the material plate 24 that contacts the grains, so that the driving member 42 does not come into contact with the grains.
[0039] The material return device is an existing technology in this field, and can adopt an elevator or a conveyor belt. This application does not impose any restrictions on this, as long as the grains can be returned to the gravity grain-rough separation screen 1.
[0040] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A brown rice band automatic adjustment mechanism, installed at the discharge end of a gravity grain-brown separation screen (1), for controlling the width of the brown rice band on the gravity grain-brown separation screen (1), characterized in that: The brown rice belt automatic adjustment mechanism comprises: A discharge unit, comprising a first chute (21), a second chute (22) and a third chute (23), wherein the first chute (21), the second chute (22) and the third chute (23) are arranged below the discharge end of the gravity grain separation screen (1) and are arranged in sequence along the width direction of the gravity grain separation screen (1), and are used to respectively receive grains discharged from different positions of the discharge end of the gravity grain separation screen (1); A shielding unit, the shielding unit comprising a first state of shielding the top inlet of the third chute (23) and guiding the grain above the third chute (23) into the second chute (22) and a second state of opening the top inlet of the third chute (23); A material return device is provided at the bottom end of the second chute (22) and is used to return the grains discharged from the bottom end outlet of the second chute (22) to the gravity grain separation screen (1) for further separation.
2. The automatic adjustment mechanism for brown rice belt according to claim 1, characterized in that: It also includes an online detection device (3), which is arranged above the gravity rice-rice separation screen (1) and is used to detect the width of the brown rice band on the gravity rice-rice separation screen (1).
3. The automatic adjustment mechanism for brown rice belt according to claim 1, characterized in that: The discharge end of the gravity grain separation screen (1) is provided with a material plate (24), and the first chute (21), the second chute (22) and the third chute (23) are all fixedly arranged at the bottom end of the material plate (24). The material plate (24) is used to guide the grain discharged from the gravity grain separation screen (1) to flow to the first chute (21), the second chute (22) and the third chute (23).
4. The automatic adjustment mechanism for brown rice belt according to claim 1, characterized in that: The shielding unit comprises a baffle (41) and a driving member (42), wherein the baffle (41) is movably arranged at the top inlet of the third chute (23) for shielding the top inlet of the third chute (23), and the driving member (42) is arranged on the material plate (24) for driving the baffle (41) to move so as to realize the transformation between the first state and the second state of the shielding unit.
5. The automatic adjustment mechanism for brown rice belt according to claim 4, characterized in that: The baffle (41) is rotatably arranged on the side of the top inlet of the third chute (23), and the driving member (42) is used to drive the baffle (41) to rotate, and the first state of the shielding unit is achieved by the baffle (41) rotating to fit the top surface of the third chute (23), and the second state of the shielding unit is achieved by the baffle (41) rotating to move the baffle (41) away from the top surface of the third chute (23).
6. The automatic adjustment mechanism for brown rice belt according to claim 4, characterized in that: The baffle (41) is slidably arranged at the top inlet of the third chute (23), and the driving member (42) is used to drive the baffle (41) to slide. The vertical projection of the top inlet of the third chute (23) is placed within the vertical projection of the baffle (41) by the sliding of the baffle (41), so as to realize the first state of the shielding unit. The vertical projection of the top inlet of the third chute (23) is misaligned with the vertical projection of the baffle (41) by the sliding of the baffle (41), so as to realize the second state of the shielding unit.
7. The automatic adjustment mechanism for brown rice belt according to claim 4, characterized in that: The baffle (41) is arranged on one side of the top inlet of the third chute (23) close to the second chute (22).
8. The automatic adjustment mechanism for brown rice belt according to claim 4, characterized in that: The driving member (42) is arranged on the back side of the material plate (24) that is used for contacting grains.
9. The automatic adjustment mechanism for brown rice belt according to claim 2, characterized in that: The online detection device (3) adopts an image processing sensor.
10. The automatic adjustment mechanism for brown rice belt according to claim 1, characterized in that: The material return device adopts an elevator or a conveyor belt.