A feeding device for a rice mill

By using a negative pressure pump-driven feeding device, and with the help of a sealing mechanism and electric valve control, the problem of low feeding efficiency in traditional rice milling machines has been solved. This enables automatic, continuous, and sealed feeding of rice, thereby improving the working efficiency and product quality of the rice milling machine.

CN224541810UActive Publication Date: 2026-07-24LESHAN JINGYAN WANDONG MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LESHAN JINGYAN WANDONG MASCH MFG CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The feeding process of traditional rice milling machines relies on manual labor or simple machinery, which is inefficient, makes it difficult to ensure continuity and stability, and affects work efficiency and product quality.

Method used

The feeding device, driven by a negative pressure pump, automatically picks up and transports rice through the negative pressure pump and sealing mechanism. Combined with electric valve control, it ensures airtightness, preventing rice leakage and the entry of impurities.

Benefits of technology

It enables automatic and continuous feeding of rice, ensuring the sealing and stability of the feeding process, and improving the working efficiency and product quality of the rice milling machine.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224541810U_ABST
Patent Text Reader

Abstract

The utility model relates to rice mill feeding technology field discloses a kind of feeding device for rice mill, including rice mill, the feeding inlet is communicated and installed in the top of rice mill, the feeding inlet top is communicated and installed with feeding tank, negative pressure pump is fixedly installed in the inner wall one side of feeding tank, the sealing mechanism is communicated and installed in the side of negative pressure pump outlet, and the sealing mechanism other end is communicated and installed with discharge cylinder.This utility model technical scheme is communicated and installed in the side wall of feeding tank by driving the negative pressure pump inside feeding tank, negative pressure is transported in the hose, rice in bag is sucked, and the exhaust end of negative pressure pump is communicated and installed with pressure pipe, the air pressure discharged will be transported to the inside of sealing cylinder by pressure pipe, when waiting extrusion continuously extruding the sealing plug inside sealing cylinder, sealing plug one end installed sealing plate will be extruded synchronously, discharge cylinder is sealed, effectively guarantee the sealing of feeding tank, and the negative pressure inside hose continuously sucks rice into the inside of feeding tank.
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Description

Technical Field

[0001] This utility model relates to the field of rice milling machine feeding technology, specifically a feeding device for a rice milling machine. Background Technology

[0002] Currently, in the feeding process of rice milling machines, traditional methods mostly rely on manual labor or simple mechanical devices to transport and add rice. These methods are often inefficient and make it difficult to ensure the continuity and stability of feeding.

[0003] In particular, when processing large quantities of rice, manual feeding is not only labor-intensive, but also prone to uneven or interrupted feeding speeds due to human factors, which affects the overall working efficiency and product quality of the rice milling machine.

[0004] Therefore, we propose a feeding device for a rice milling machine that can automatically and continuously draw rice from the storage bag and transport it into the rice milling machine, while ensuring the sealing during the feeding process to prevent rice leakage and the entry of external impurities. Utility Model Content

[0005] The purpose of this invention is to provide a feeding device for a rice milling machine, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for a rice milling machine, comprising a rice milling machine, a feeding port connected to the top of the rice milling machine, a feeding box connected to the top of the feeding port, a negative pressure pump fixedly installed on one side of the inner wall of the feeding box, a sealing mechanism connected to one side of the air outlet of the negative pressure pump, the other end of the sealing mechanism connected to the discharge cylinder, the discharge cylinder installed in the middle of the bottom of the feeding box, and the discharge cylinder connected to the feeding port.

[0007] Optionally, the sealing mechanism includes a pressurizing pipe connected to one side of the negative pressure pump outlet, a sealing cylinder connected to the other end of the pressurizing pipe, a sealing plug sealed inside the sealing cylinder, a sealing plate fixedly installed at one end of the sealing plug, and a spring fixedly installed at the other end of the sealing plug. A pressure sensor is fixedly installed on the side wall of the other end of the sealing plate.

[0008] By adopting the above technical solution, rapid material loading can be achieved.

[0009] Optionally, the other side of the spring is fixedly installed to the inner wall of the sealing cylinder, and the sealing plate is slidably connected to the side wall of the discharge cylinder.

[0010] By adopting the above technical solution, the sealing plate can be pulled back to its original position.

[0011] Optionally, the outlet end of the negative pressure pump is connected to a three-way connector, and the two component interfaces of the three-way connector are respectively connected to a pressurization pipe and an exhaust pipe. An electric valve is installed at one end of both the pressurization pipe and the exhaust pipe.

[0012] By adopting the above technical solution, the internal flow rate of the pressurization pipe and the exhaust pipe can be controlled.

[0013] Optionally, a cover plate is mounted on one side of the top of the feeding box via a hinge, and a sealing ring is fitted onto the outer wall of the bottom side of the cover plate.

[0014] By adopting the above technical solution, the sealing of the feeding box is guaranteed.

[0015] Optionally, a suction pipe is connected to one end of the side wall of the feeding box, and a flexible hose is connected to the other end of the suction pipe.

[0016] By adopting the above technical solution, the rice in the bag can be sucked up.

[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0018] The technical solution of this application uses a negative pressure pump inside the feeding box to deliver negative pressure to the hose connected to the side wall of the feeding box, which sucks the rice inside the bag. The exhaust end of the negative pressure pump is connected to a pressure pipe, and the discharged air pressure is delivered to the inside of the sealing cylinder through the pressure pipe. When the sealing plug inside the sealing cylinder is continuously squeezed, the sealing plate installed at one end of the sealing plug is squeezed simultaneously, sealing the discharge cylinder, which effectively ensures the sealing of the feeding box and allows the negative pressure inside the hose to continuously suck the rice into the feeding box.

[0019] The two-part interface of the three-way connector is connected to the pressurization pipe and the exhaust pipe respectively. Both the pressurization pipe and the exhaust pipe are equipped with electric valves at one end. When the sealing plug continuously squeezes the sealing plate, the side wall of the sealing plate and the inner wall of the discharge cylinder are in contact with each other. The pressure sensor under pressure will send a signal to the control processor, close the electric valve on the pressurization pipe and open the electric valve on the exhaust pipe. This can continuously discharge pressure to the negative pressure pump and control the opening and closing of the sealing plate inside the discharge cylinder. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a feeding device for a rice milling machine according to the present invention;

[0022] Figure 2 This is a schematic diagram of the feeding box structure of a feeding device for a rice milling machine according to this utility model;

[0023] Figure 3 This is a schematic diagram of the sealing mechanism of a feeding device for a rice milling machine according to the present invention.

[0024] In the diagram: 1. Rice milling machine; 11. Feed inlet; 12. Feeding box; 13. Negative pressure pump; 14. Discharge cylinder; 2. Pressurization pipe; 21. Sealing cylinder; 22. Sealing plug; 23. Sealing plate; 24. Spring; 3. Cover plate; 31. Suction pipe; 32. Hose; 33. Exhaust pipe; 34. Electric valve. Detailed Implementation

[0025] Please see Figure 1-3 This utility model provides a technical solution: a feeding device for a rice milling machine, including a rice milling machine 1, with a feeding inlet 11 connected to the top of the rice milling machine 1, and a feeding box 12 connected to the top of the feeding inlet 11. A negative pressure pump 13 is fixedly installed on one side of the inner wall of the feeding box 12, and a sealing mechanism is connected to one side of the air outlet of the negative pressure pump 13. The other end of the sealing mechanism is connected to a discharge cylinder 14, which is installed in the middle of the bottom of the feeding box 12. The discharge cylinder 14 is connected to the feeding inlet 11. The sealing mechanism includes the negative pressure pump... A pressurizing pipe 2 is connected to one side of the air outlet, a sealing cylinder 21 is connected to the other end of the pressurizing pipe 2, a sealing plug 22 is sealed inside the sealing cylinder 21, a sealing plate 23 is fixedly installed at one end of the sealing plug 22, and a spring 24 is fixedly installed at the other end of the sealing plug 22. A pressure sensor is fixedly installed on the side wall of the other end of the sealing plate 23 to complete rapid feeding. A suction pipe 31 is connected to one end of the side wall of the feeding box 12, and a flexible hose 32 is connected to the other end of the suction pipe 31 to suck up the rice in the bag.

[0026] By driving the negative pressure pump 13 inside the feeding box 12, negative pressure is delivered to the hose 32 connected to the side wall of the feeding box 12 to suck up the rice inside the bag. The exhaust end of the negative pressure pump 13 is connected to the pressure pipe 2, and the discharged air pressure is delivered to the inside of the sealing cylinder 21 through the pressure pipe 2. When the sealing plug 22 inside the sealing cylinder 21 is continuously squeezed, the sealing plate 23 installed at one end of the sealing plug 22 will be squeezed simultaneously to seal the discharge cylinder 14, effectively ensuring the sealing of the feeding box 12, so that the negative pressure inside the hose 32 continuously sucks the rice into the feeding box 12.

[0027] In this technical solution, the outlet end of the negative pressure pump 13 is connected to a three-way connector. The two component interfaces of the three-way connector are respectively connected to the pressurization pipe 2 and the exhaust pipe 33. An electric valve 34 is installed at one end of the pressurization pipe 2 and the exhaust pipe 33, which can control the internal flow of the pressurization pipe 2 and the exhaust pipe 33.

[0028] When the sealing plug 22 continuously squeezes the sealing plate 23, the side wall of the sealing plate 23 and the inner wall of the discharge cylinder 14 come into contact with each other. The pressure sensor under pressure will send a signal to the control processor, close the electric valve 34 on the pressurization pipe 2, open the electric valve 34 on the exhaust pipe 33, and continuously discharge pressure to the negative pressure pump 13, and control the opening and closing of the sealing plate 23 inside the discharge cylinder 14.

[0029] In this technical solution, the other side of the spring 24 is fixedly installed on the inner wall of the sealing cylinder 21, and the sealing plate 23 is slidably connected to the side wall of the discharge cylinder 14, so that the sealing plate 23 can be pulled to reset.

[0030] After the sealing plate 23 installed at one end of the sealing plug 22 is squeezed to seal the discharge cylinder 14, the driving of the negative pressure pump 13 is stopped, and the electric valve 34 on the pressure pipe 2 is opened. The sealing plug 22 will automatically reset the sealing plate 23 through the pulling force of the spring 24, opening the discharge cylinder 14 at the bottom of the feeding box 12, so that the rice inside the feeding box 12 can be introduced into the rice milling machine 1.

[0031] In this technical solution, a cover plate 3 is mounted on one side of the top of the feeding box 12 via a hinge, and a sealing ring is fitted on the outer wall of the bottom side of the cover plate 3 to ensure the sealing of the feeding box 12.

[0032] Before the operator drives the negative pressure pump 13, he can rotate the cover plate 3 to close the port of the feeding box 12, ensuring the sealing of the inside of the feeding box 12.

[0033] In use, first place the bagged rice on one side of the rice milling machine 1, then hold the flexible hose 32 connected to one end of the suction pipe 31 and insert the end of the flexible hose 32 into the rice. Simultaneously, drive the negative pressure pump 13 inside the feeding box 12 to deliver negative pressure into the flexible hose 32 connected to the side wall of the feeding box 12, sucking the rice from the bag. The exhaust end of the negative pressure pump 13 is connected to a pressure pipe 2, and the discharged air pressure is delivered to the sealing cylinder 21 through the pressure pipe 2. As the sealing plug 22 inside the sealing cylinder 21 is continuously squeezed, the sealing plate 23 installed at one end of the sealing plug 22 is simultaneously squeezed, sealing the discharge cylinder 14 and effectively protecting the rice. The sealing performance of the feeding box 12 is verified, and the negative pressure inside the hose 32 continuously draws the rice into the feeding box 12. At the same time, the two sets of interfaces of the three-way connector are connected to the pressurizing pipe 2 and the exhaust pipe 33 respectively. Both the pressurizing pipe 2 and the exhaust pipe 33 are equipped with electric valves 34 at one end. When the sealing plug 22 continuously squeezes the sealing plate 23, the side wall of the sealing plate 23 and the inner wall of the discharge cylinder 14 are in contact with each other. The pressure sensor under pressure will send a signal to the control processor, close the electric valve 34 on the pressurizing pipe 2, and open the electric valve 34 on the exhaust pipe 33. This can continuously discharge pressure to the negative pressure pump 13 and control the opening and closing of the sealing plate 23 inside the discharge cylinder 14.

Claims

1. A feeding device for a rice milling machine, comprising a rice milling machine (1), characterized in that: The rice milling machine (1) has a feed inlet (11) connected to the top, and a feeding box (12) is connected to the top of the feed inlet (11). A negative pressure pump (13) is fixedly installed on one side of the inner wall of the feeding box (12). A sealing mechanism is connected to one side of the air outlet of the negative pressure pump (13). The other end of the sealing mechanism is connected to the discharge cylinder (14). The discharge cylinder (14) is installed in the middle of the bottom of the feeding box (12). The discharge cylinder (14) is connected to the feed inlet (11).

2. The feeding device for a rice milling machine according to claim 1, characterized in that: The sealing mechanism includes a pressurizing pipe (2) connected to one side of the outlet of the negative pressure pump (13), a sealing cylinder (21) connected to the other end of the pressurizing pipe (2), a sealing plug (22) sealed inside the sealing cylinder (21), a sealing plate (23) fixedly installed at one end of the sealing plug (22), and a spring (24) fixedly installed at the other end of the sealing plug (22). A pressure sensor is fixedly installed on the side wall of the other end of the sealing plate (23).

3. The feeding device for a rice milling machine according to claim 2, characterized in that: The other side of the spring (24) is fixedly installed on the inner wall of the sealing cylinder (21), and the sealing plate (23) is slidably connected to the side wall of the discharge cylinder (14).

4. The feeding device for a rice milling machine according to claim 2, characterized in that: The negative pressure pump (13) is connected to a three-way connector at its outlet. The two components of the three-way connector are respectively connected to a pressurizing pipe (2) and an exhaust pipe (33). An electric valve (34) is installed at one end of both the pressurizing pipe (2) and the exhaust pipe (33).

5. The feeding device for a rice milling machine according to claim 1, characterized in that: The top side of the feeding box (12) is fitted with a cover plate (3) via a hinge, and a sealing ring is fitted on the bottom outer wall of the cover plate (3).

6. The feeding device for a rice milling machine according to claim 1, characterized in that: The feeding box (12) has a suction pipe (31) connected to one end of its side wall, and a flexible hose (32) connected to the other end of its suction pipe (31).