Broken rice screening equipment for rice processing
By introducing a flow rate adjustment mechanism and a guide pipe structure into the rice processing equipment, the problems of feeding flow rate control and broken rice collection in the existing equipment have been solved, thereby improving screening efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-03
AI Technical Summary
Existing rice processing equipment cannot effectively control the feed flow rate during the screening process and is not convenient for collecting broken rice, resulting in low screening efficiency.
A device comprising a base, a guide rod frame, a screening hopper, a guide tube, and a flow rate adjustment mechanism was designed. The opening size of the feed hopper is adjusted by the cooperation of the screw and the baffle frame to control the feed flow rate, and the broken rice is effectively screened and collected through the screening plate and the guide tube.
It enables flow rate control during the rice screening process and facilitates the collection of broken rice, thereby improving screening efficiency and quality.
Smart Images

Figure CN223959990U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening equipment technology, specifically to a rice processing broken rice screening equipment. Background Technology
[0002] A certain amount of broken rice is produced during the rice processing process. In order to improve the quality of rice products, it is necessary to screen out the broken rice.
[0003] Patent document CN218902570U discloses a broken rice screening device for deep processing of rice, including a screening box, a screening cylinder rotatably arranged inside the screening box, a screening mesh plate for screening broken rice embedded on the outer surface of the screening cylinder, a rotating tube embedded on the upper surface of the screening cylinder, and a feeding funnel rotatably arranged by the top end of the rotating tube to the upper surface of the screening box and via a bearing. A drive mechanism for driving the screening cylinder to rotate is arranged on the upper surface of the screening box. A dust collection mechanism for absorbing dust is arranged inside the screening cylinder. The dust collection mechanism includes a dust collection box fixed on the front of the screening box and a dust collection fan embedded on the lower surface of the dust collection box.
[0004] However, existing screening equipment makes it difficult to control the rate at which rice is added during screening, resulting in ineffective screening of broken rice. Furthermore, it is inconvenient to collect the screened broken rice, leading to low screening efficiency. Therefore, improvements to the existing technology are necessary. Summary of the Invention
[0005] To address the problems of inconvenient control of feed flow rate and inconvenience in collecting broken rice in existing technologies, this utility model proposes a rice processing broken rice screening device.
[0006] Therefore, the technical solution of this utility model is as follows: a rice processing broken rice screening device, including a base, two symmetrically distributed guide rod frames are fixedly connected to the upper end of the base, connecting plates are slidably connected to the outer sides of the two guide rod frames, a screening hopper is fixedly connected between the two connecting plates, a screening plate is fixedly connected inside the screening hopper, the screening plate divides the screening hopper into upper and lower layers, a guide tube is fixedly connected to the outer side of the screening hopper, the opening of the guide tube is connected to the lower layer of the screening hopper, and the top of the guide tube is connected and fixed to the screening plate;
[0007] A frame is fixedly connected to the upper end of the base. A feed hopper is fixed to the upper end of the frame, directly above the screening hopper. A flow rate adjustment mechanism is provided on the frame, and a spring is provided on the outer side of the guide rod frame.
[0008] The lower end of the screening hopper is fixedly connected to a connecting frame, and a rocker arm is hinged inside the connecting frame. An eccentric wheel is installed on the upper end of the base through a bearing, and a motor is fixedly installed on the outer side of the base.
[0009] Preferably, a guide plate is fixedly connected to the outside of the guide tube, which can guide whole grains of rice.
[0010] Preferably, one end of the spring is fixedly connected to the connecting piece, and the other end of the spring is fixedly connected to the guide rod frame. The spring can automatically reset the connecting piece through its elastic force.
[0011] Preferably, the output shaft of the motor is fixedly connected to the eccentric wheel, and the eccentric shaft of the eccentric wheel is connected to the rocker arm through a bearing, so that the motor can drive the eccentric wheel to rotate.
[0012] Preferably, the flow rate regulating mechanism includes a baffle frame, a baffle frame slidably connected to the lower end of the feed hopper, a screw mounted on the lower end of the frame via a bearing, a support frame fixedly connected to the outer side of the frame, and a guide frame fixedly arranged opposite to the support frame on the outer side of the frame. The guide frame is slidably connected to the baffle frame, and the screw can drive the baffle frame to move through the threaded engagement with the baffle frame.
[0013] Preferably, a knob is fixedly connected to the outside of the screw, and the screw is connected to the baffle frame by a thread, and the knob can drive the screw to rotate.
[0014] Beneficial effects: Compared with the prior art, this utility model, by adding baffles, screws, and guide frames to the frame, allows the baffles to move during use through the threaded engagement between the screw and the baffles. The movement of the baffles controls the size of the opening area of the feed hopper, thus adjusting the flow rate by controlling the discharge area and improving the screening quality of rice. Furthermore, by adding a screening hopper, guide pipe, and springs to the base, broken rice is screened through the screening plate after falling into the hopper. The screened broken rice is then discharged through the guide pipe, and a collection box placed below the guide pipe facilitates collection, thus improving the processing efficiency of broken rice. Attached Figure Description
[0015] Figure 1 This is a perspective view of the present invention.
[0016] Figure 2 yes Figure 1 A three-dimensional sectional view.
[0017] Figure 3 yes Figure 1 A three-dimensional sectional view of the intermediate screening hopper.
[0018] Figure 4 yes Figure 1 A three-dimensional view of the local structure.
[0019] Figure 5 yes Figure 2 Enlarged view of point A in the middle.
[0020] The following components are shown in the diagram: 1. Base; 2. Guide rod frame; 3. Connecting plate; 4. Screening hopper; 5. Screening plate; 6. Guide tube; 7. Guide plate; 8. Frame; 9. Flow rate adjustment mechanism; 10. Feed hopper; 11. Spring 1; 12. Connecting frame; 13. Rocker arm; 14. Motor; 15. Eccentric wheel; 91. Baffle frame; 92. Screw; 93. Support frame; 94. Knob; 95. Guide frame. Detailed Implementation
[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings, but this embodiment should not be construed as a limitation of this utility model.
[0022] This utility model is as follows Figures 1 to 4 As shown:
[0023] in, Figure 1 , Figure 2 , Figure 3 and Figure 4 A rice processing and broken rice screening device includes a base 1. Two symmetrically distributed guide rod frames 2 are fixedly connected to the upper end of the base 1. Connecting plates 3 are slidably connected to the outer sides of the two guide rod frames 2. A screening hopper 4 is fixedly connected between the two connecting plates 3. A screening plate 5 is fixedly connected inside the screening hopper 4, dividing the screening hopper into upper and lower layers. A guide tube 6 is fixedly connected to the outer side of the screening hopper 4. The opening of the guide tube communicates with the lower layer of the screening hopper, and the top of the guide tube is connected and fixed to the screening plate. A frame 8 is also fixedly connected to the upper end of the base 1. A feed hopper 10 is fixedly fixed to the upper end of the frame 8 and directly above the screening hopper. A flow rate adjustment mechanism 9 is provided on the frame 8. A spring 11 is provided on the outer side of the guide rod frames 2. A connecting frame 12 is fixedly connected to the lower end of the screening hopper 4. A rocker arm 13 is hinged inside the connecting frame 12. An eccentric wheel 15 is installed on the upper end of the base 1 through a bearing. A motor 14 is fixedly installed on the outer side of the base 1.
[0024] Figure 1 , Figure 2 , Figure 3 and Figure 4 In the middle, a guide plate 7 is fixedly connected to the outside of the guide tube 6. The guide tube 6 is fixedly connected to the screening plate 5. The guide plate 7 can guide whole grains of rice. One end of the spring 11 is fixedly connected to the connecting piece 3, and the other end of the spring 11 is fixedly connected to the guide rod frame 2. The spring 11 can automatically reset the connecting piece 3 through its elastic force. The output shaft of the motor 14 is fixedly connected to the eccentric wheel 15. The eccentric shaft of the eccentric wheel 15 is connected to the rocker arm 13 through a bearing. The motor 14 can drive the eccentric wheel 15 to rotate.
[0025] like Figure 1 , Figure 2 and Figure 5 In the process, the flow rate regulating mechanism 9 includes a baffle frame 91. The lower end of the feed hopper 10 is slidably connected to the baffle frame 91. The lower end of the frame 8 is mounted with a screw 92 via a bearing. The outer side of the frame 8 is fixedly connected to a support frame 93. The outer side of the frame 8 is also fixedly connected to a guide frame 95, which is opposite to the support frame. The guide frame 95 is slidably connected to the baffle frame 91. The screw 92 can drive the baffle frame 91 to move through the threaded engagement with the baffle frame 91. The outer side of the screw 92 is fixedly connected to a knob 94. The screw 92 is threadedly connected to the baffle frame 91. The knob 94 can drive the screw 92 to rotate.
[0026] The specific implementation process of this utility model is as follows:
[0027] In use, the milled rice is placed into the feed hopper 10, and then the knob 94 is turned. The knob 94 drives the screw 92 to rotate. The screw 92 drives the baffle frame 91 to move through the threaded engagement with the baffle frame 91. During the movement of the baffle frame 91, the rice inside the feed hopper 10 can be released. The released rice and broken rice enter the screening hopper 4. The rice is screened by the screening plate 5 inside the screening hopper 4. At the same time as screening, the motor 14 is started. The motor 14 drives the eccentric wheel 15 to rotate. During the rotation of the eccentric wheel 15, the screening hopper 4 can be moved back and forth through the rocker arm 13 and the connecting frame 12, which can generate vibration inside the screening hopper 4, thereby increasing the screening efficiency. At the same time, the screened broken rice can be discharged through the guide pipe 6, while the whole rice grains are guided by the guide plate 7, which makes it easy to collect the broken rice.
[0028] Any aspects not described in detail in this specification are techniques well-known in the art.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 rice processing broken rice screening device, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to two symmetrically distributed guide rod frames (2). The outer sides of the two guide rod frames are slidably connected to connecting pieces (3). The two connecting pieces are fixedly connected to a screening hopper (4). The inside of the screening hopper is fixedly connected to a screening plate (5). The screening plate divides the screening hopper into upper and lower layers. The outer side of the screening hopper (4) is fixedly connected to a guide tube (6). The opening of the guide tube is connected to the lower layer of the screening hopper. The top of the guide tube is connected to the screening plate. The upper end of the base (1) is also fixedly connected to a frame (8), and a feed hopper (10) is fixedly fixed at the upper end of the frame and directly above the screening hopper. A flow rate adjustment mechanism (9) is provided on the frame (8). A spring (11) is provided on the outside of the guide rod frame (2), a connecting frame (12) is fixedly connected to the lower end of the screening bucket (4), a rocker arm (13) is hinged inside the connecting frame, an eccentric wheel (15) is installed on the upper end of the base (1) through a bearing, and a motor (14) is fixedly installed on the outside of the base (1).
2. The rice processing broken rice screening equipment according to claim 1, characterized in that: A guide plate (7) is fixedly connected to the outside of the guide tube (6).
3. The rice processing broken rice screening equipment according to claim 1 or 2, characterized in that: One end of the spring (11) is fixedly connected to the connecting piece (3), and the other end of the spring (11) is fixedly connected to the guide rod frame (2).
4. The rice processing broken rice screening equipment according to claim 3, characterized in that: The output shaft of the motor (14) is fixedly connected to the eccentric wheel (15), and the eccentric shaft of the eccentric wheel is connected to the rocker arm (13) through a bearing.
5. A rice processing broken rice screening device according to claim 1, 2, or 4, characterized in that: The flow rate adjustment mechanism (9) includes a baffle frame (91), the lower end of the feed hopper (10) is slidably connected to the baffle frame (91), the lower end of the frame (8) is equipped with a screw (92) through a bearing, the outer side of the frame (8) is fixedly connected to a support frame (93), and the outer side of the frame (8) is also fixed with a guide frame (95) that is opposite to the support frame. The guide frame (95) is slidably connected to the baffle frame (91).
6. The rice processing broken rice screening equipment according to claim 5, characterized in that: A knob (94) is fixedly connected to the outside of the screw (92), and the screw is connected to the baffle frame (91) by a thread.
Citation Information
Patent Citations
Broken rice screening equipment for deep processing of rice
CN218902570U