Rice surface treatment device with adjustable polishing pressure

By using an adjustable polishing pressure mechanism and an eccentric transmission design, the problem of non-adjustable pressure in rice polishing equipment has been solved, thereby improving the efficiency and effect of rice polishing and reducing the broken rice rate and equipment maintenance costs.

CN224443094UActive Publication Date: 2026-07-03MAANSHAN JUNNONG AGRICULTURAL PLANTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAANSHAN JUNNONG AGRICULTURAL PLANTING CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-03

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Abstract

The utility model discloses a rice surface treatment device of adjustable polishing pressure relates to rice polishing technical field, including equipment frame, the inboard sliding joint of equipment frame has the receiving bin, the inboard fixed mounting of receiving bin has the polishing plate, the both sides of receiving bin are all communicated with the discharge pipe, the top fixed mounting of equipment frame has the pressurizing mechanism, the pressurizing mechanism includes the pressing plate, the guide rod, the horizontal board and electric cylinder, the utility model discloses the telescopic length of control electric cylinder piston rod, changes the interval of pressing plate and the rice in receiving bin, thereby adjusts the polishing pressure to rice, and the through -hole of pressing plate inside guarantees that rice can smoothly unload to the polishing treatment in receiving bin, through setting adjustable pressurizing mechanism, utilizes electric cylinder to realize the flexible control of polishing pressure, can adjust pressure according to different rice variety, polishing demand, improves the polishing effect and reduces the broken rice rate simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of rice polishing technology, and in particular to a rice surface treatment device with adjustable polishing pressure. Background Technology

[0002] Rice polishing is an important step in rice processing. It refers to the technical means of improving the appearance and quality of rice by using polishing equipment and under certain process conditions to cause friction and collision on the surface of rice grains.

[0003] However, in existing technologies, polishing pressure is difficult to adjust flexibly. It is impossible to accurately match the pressure requirements for different varieties and qualities of rice. Either the pressure is too high, which increases the rice breakage rate and wastes raw materials, or the pressure is insufficient, resulting in poor polishing effect, more bran powder residue on the rice surface, and poor gloss. The contact method between rice and polishing parts during equipment operation is singular and inefficient, resulting in long polishing time and limited production capacity. Thirdly, the equipment structure design is unreasonable, making it inconvenient to clean residual rice and polishing agent, which can easily cause material accumulation, breed bacteria, affect the quality of rice produced in subsequent production, and the equipment maintenance cost is high. Utility Model Content

[0004] The purpose of this invention is to solve the problems of non-adjustable polishing pressure, poor applicability, and large processing losses in the existing technology, and to propose a rice surface treatment device with adjustable polishing pressure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rice surface treatment device with adjustable polishing pressure, comprising a device frame, a receiving box slidably connected to the inner side of the device frame, a polishing plate fixedly installed on the inner side of the receiving box, and discharge pipes connected to both sides of the receiving box. A pressurizing mechanism is fixedly installed on the top of the device frame, the pressurizing mechanism comprising a pressure plate, a guide rod, a horizontal plate, and an electric cylinder. The electric cylinder is fixedly installed on the upper surface of the device frame, the lower surface of the horizontal plate is fixedly connected to one end of the piston rod of the electric cylinder, the guide rod is fixedly installed at the four corners of the horizontal plate, the bottom of the guide rod is fixedly connected to the upper surface of the pressure plate, and the pressure plate is located above the receiving box.

[0006] Preferably, the pressure plate has a through hole inside, which is used for material feeding.

[0007] Preferably, a geared motor is fixedly installed at the bottom of the equipment frame, and a belt drive assembly is fixedly connected to the output end of the geared motor.

[0008] Preferably, one end of the belt drive assembly is fixedly connected to a drive wheel, and the eccentric part of the drive wheel is rotatably connected to a drive rod.

[0009] Preferably, an inclined plate is fixedly installed at the bottom of the receiving box, and a connecting block is fixedly installed on the lower surface of the inclined plate.

[0010] Preferably, the connecting block is rotatably connected to the other end of the transmission rod.

[0011] Preferably, a limiting frame is fixedly installed at the bottom of the receiving box, and a positioning block is fixedly installed on the side of the equipment frame, with the limiting frame and the positioning block being slidably connected.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by controlling the extension and retraction length of the piston rod of the electric cylinder, the distance between the pressure plate and the rice in the receiving box is changed, thereby adjusting the polishing pressure on the rice. The through hole inside the pressure plate ensures that the rice can be smoothly fed into the receiving box for polishing. By setting an adjustable pressurization mechanism, the polishing pressure can be flexibly controlled by the electric cylinder. The pressure can be adjusted according to different rice varieties and polishing requirements, improving the polishing effect while reducing the broken rice rate.

[0014] 2. In this utility model, by combining a geared motor with a belt drive assembly and a drive wheel, and utilizing the principle of eccentric transmission, the receiving box generates a stable reciprocating motion, effectively increasing the number and duration of contact between the rice and the polishing plate, thus significantly improving polishing efficiency and effect. The sliding connection design of the limit frame and positioning block ensures the stability and accuracy of the receiving box's movement, preventing deviation during the movement. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a rice surface treatment device with adjustable polishing pressure.

[0016] Figure 2 This utility model provides a bottom structure diagram of a rice surface treatment device with adjustable polishing pressure.

[0017] Figure 3 A front view of a rice surface treatment device with adjustable polishing pressure is provided for this utility model;

[0018] Figure 4 This invention presents a schematic diagram of the internal structure of the receiving box of a rice surface treatment device with adjustable polishing pressure.

[0019] Legend: 1. Equipment frame; 2. Gear motor; 3. Belt drive assembly; 4. Receiving box; 5. Polishing plate; 6. Pressurizing mechanism; 7. Connecting block; 8. Drive wheel; 9. Drive rod; 10. Limiting frame; 11. Positioning block; 12. Discharge pipe; 13. Inclined plate; 61. Pressure plate; 62. Guide rod; 63. Horizontal plate; 64. Through hole; 65. Electric cylinder. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a rice surface treatment device with adjustable polishing pressure, including a device frame 1. A receiving box 4 is slidably connected to the inner side of the device frame 1. A polishing plate 5 is fixedly installed on the inner side of the receiving box 4. Both sides of the receiving box 4 are connected to discharge pipes 12. A pressure mechanism 6 is fixedly installed on the top of the device frame 1. The pressure mechanism 6 includes a pressure plate 61, a guide rod 62, a horizontal plate 63, and an electric cylinder 65. The electric cylinder 65 is fixedly installed on the upper surface of the device frame 1. The lower surface of the horizontal plate 63 is fixedly connected to one end of the piston rod of the electric cylinder 65. The guide rod 62 is fixedly installed at the four corners of the horizontal plate 63. The bottom of the guide rod 62 is fixedly connected to the upper surface of the pressure plate 61. The pressure plate 61 is located above the receiving box 4. A through hole 64 is opened inside the pressure plate 61 for discharging material.

[0023] The specific setup and function of this embodiment are described below. The rice surface treatment device is supported by the equipment frame 1. In use, rice and polishing agent fall onto the polishing plate 5 through the through hole 64. The polishing plate 5 has multiple fine holes for the polishing agent to fall. The receiving box 4 can slide inside the equipment frame 1 for easy receiving and movement. The polishing plate 5 is fixed inside the receiving box 4 to perform surface polishing on the rice. The discharge pipe 12 connects the two sides of the receiving box 4 to discharge the polishing agent. The pressurizing mechanism 6 is the core for adjusting the polishing pressure. The electric cylinder 65 is fixed to the upper surface of the equipment frame 1. When the electric cylinder 65 works, its piston rod extends and retracts, driving the horizontal plate 63 to rise and fall. The guide rods 62 at the four corners of the horizontal plate 63 ensure the lifting process. To ensure stability, the guide rod 62 drives the pressure plate 61 to move up and down. By controlling the extension and retraction length of the piston rod of the electric cylinder 65, the distance between the pressure plate 61 and the rice in the receiving box 4 is changed, thereby adjusting the polishing pressure on the rice. The through hole 64 inside the pressure plate 61 ensures that the rice can be smoothly fed into the receiving box 4 for polishing. By setting an adjustable pressurizing mechanism 6, the polishing pressure can be flexibly controlled by the electric cylinder 65. The pressure can be adjusted according to different rice varieties and polishing requirements, improving the polishing effect while reducing the broken rice rate. The sliding connection design of the receiving box 4 facilitates rice collection and device cleaning. The cooperation between the pressure plate 61, the guide rod 62, and the horizontal plate 63 ensures that the pressure adjustment process is stable and accurate, enhancing the practicality and reliability of the device.

[0024] Example 2: Figure 1 , Figure 2 and Figure 3 As shown, a geared motor 2 is fixedly installed at the bottom of the equipment frame 1. A belt drive assembly 3 is fixedly connected to the output end of the geared motor 2. A drive wheel 8 is fixedly connected to one end of the belt drive assembly 3. A drive rod 9 is rotatably connected to the eccentric part of the drive wheel 8. An inclined plate 13 is fixedly installed at the bottom of the receiving box 4. A connecting block 7 is fixedly installed on the lower surface of the inclined plate 13. The connecting block 7 is rotatably connected to the other end of the drive rod 9. A limit frame 10 is fixedly installed at the bottom of the receiving box 4. A positioning block 11 is fixedly installed on the side of the equipment frame 1. The limit frame 10 and the positioning block 11 are slidably connected.

[0025] The overall effect of this embodiment is as follows: the equipment is based on the equipment frame 1. After the reduction motor 2 at the bottom starts, it outputs power, which is transmitted to the transmission wheel 8 via the belt drive assembly 3, causing the transmission wheel 8 to rotate. Because the transmission wheel 8 is eccentrically connected to the transmission rod 9, it will generate eccentric motion when it rotates, causing the transmission rod 9 to oscillate back and forth. The other end of the transmission rod 9 is rotatably connected to the connecting block 7 on the lower surface of the inclined plate 13 at the bottom of the receiving box 4, thereby converting the reciprocating oscillation of the transmission rod 9 into the reciprocating motion of the receiving box 4. The limiting frame 10 is fixed to the bottom of the receiving box 4 and slides in cooperation with the positioning block 11 on the side of the equipment frame 1, providing guidance and limiting for the movement of the receiving box 4, ensuring that it slides smoothly along a fixed trajectory. During the reciprocating motion of the receiving box 4, the rice in the box continuously contacts and rubs against the polishing plate 5 to achieve polishing. Through the combination of the reduction motor 2, the belt drive assembly 3, and the transmission wheel 8, the eccentric transmission principle is used to make the receiving box 4 generate stable reciprocating motion, effectively increasing the number and time of contact between the rice and the polishing plate 5, and significantly improving the polishing efficiency and effect. The sliding connection design of the limiting frame 10 and the positioning block 11 ensures the stability and accuracy of the movement of the receiving box 4 and avoids deviation during the movement. The setting of the tilting plate 13 and the connecting block 7 optimizes the flow path of the polishing agent in the receiving box 4, prevents the polishing agent from accumulating in the rice, and helps the rice to be discharged and collected smoothly after polishing.

[0026] The operating method and working principle of this device are as follows: First, place the equipment frame 1 in a stable position as the overall support foundation. Before starting the equipment, adjust the position of the pressure plate 61 of the pressure mechanism 6 according to the rice variety and polishing requirements using the electric cylinder 65. Control the extension and retraction of the piston rod of the electric cylinder 65 to drive the horizontal plate 63 to rise and fall. Stability is ensured by the guide rod 62. Change the distance between the pressure plate 61 and the rice in the receiving box 4 to set a suitable polishing pressure. Then, put the rice into the receiving box 4 through the through hole 64 inside the pressure plate 61. The rice falls onto the polishing plate 5 fixed inside the receiving box 4, while the polishing agent falls from the fine holes of the polishing plate 5. The geared motor 2 at the bottom of the equipment frame 1 is started, and its power is transmitted to the transmission wheel 8 via the belt drive assembly 3. The transmission wheel 8 rotates eccentrically, driving the transmission rod 9 to swing back and forth. The transmission rod 9, through the connecting block 7, causes the receiving box 4 to move back and forth under the guidance and limitation of the limiting frame 10 and the positioning block 11, so that the rice in the box can fully contact and rub against the polishing plate 5 to complete the polishing process. During the polishing process, excess polishing agent is discharged through the discharge pipes 12 on both sides of the receiving box 4. The polished rice is smoothly discharged and collected with the help of the inclined plate 13. After polishing, the receiving box 4 is pulled out to clean the residual rice and polishing agent, preparing it for the next use.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A rice surface treatment device capable of adjusting polishing pressure, comprising a device frame (1), characterized in that: The receiving box (4) is slidably connected to the inner side of the equipment frame (1). A polishing plate (5) is fixedly installed on the inner side of the receiving box (4). Both sides of the receiving box (4) are connected to the discharge pipe (12). A pressure mechanism (6) is fixedly installed on the top of the equipment frame (1). The pressure mechanism (6) includes a pressure plate (61), a guide rod (62), a horizontal plate (63), and an electric cylinder (65). The electric cylinder (65) is fixedly installed on the upper surface of the equipment frame (1). The lower surface of the horizontal plate (63) is fixedly connected to one end of the piston rod of the electric cylinder (65). The guide rod (62) is fixedly installed at the four corners of the horizontal plate (63). The bottom of the guide rod (62) is fixedly connected to the upper surface of the pressure plate (61). The pressure plate (61) is located above the receiving box (4).

2. The rice surface treatment apparatus of claim 1, wherein: The pressure plate (61) has a through hole (64) inside, which is used for feeding.

3. The rice surface treatment apparatus of claim 1, wherein: A geared motor (2) is fixedly installed at the bottom of the equipment frame (1), and a belt drive assembly (3) is fixedly connected to the output end of the geared motor (2).

4. The rice surface treatment apparatus of claim 3, wherein: One end of the belt drive assembly (3) is fixedly connected to a drive wheel (8), and the eccentric part of the drive wheel (8) is rotatably connected to a drive rod (9).

5. The rice surface treatment device with adjustable polishing pressure according to claim 1, characterized in that: An inclined plate (13) is fixedly installed at the bottom of the receiving box (4), and a connecting block (7) is fixedly installed on the lower surface of the inclined plate (13).

6. The rice surface treatment apparatus of claim 5, wherein: The connecting block (7) is rotatably connected to the other end of the transmission rod (9).

7. The rice surface treatment apparatus of claim 1, wherein: A limiting frame (10) is fixedly installed at the bottom of the receiving box (4), and a positioning block (11) is fixedly installed on the side of the equipment frame (1). The limiting frame (10) and the positioning block (11) are slidably connected.