Pressure adjusting mechanism for rice outlet of rice mill

Abstract

The utility model belongs to the technical field of rice husking machines, and particularly relates to a pressure adjusting mechanism for a rice outlet of a rice husking machine, when the rice husking machine works, rice grains flow out from the position between a discharging port and a blocking piece and flow to the outer side of equipment through a bottom plate on the lower side of a rice outlet hopper, a supporting spring provides pressure for the blocking piece, and when the pressure of the rice outlet needs to be adjusted, the rice outlet is opened. The stepping motor can accurately control the number of rotation turns, drive the long gear to rotate and enable the lead screw to rotate through the straight gear, the lead screw can move left and right to adjust the pressure of the blocking piece to the discharging port, then the pressure of the rice outlet and the whitening condition of rice grains are adjusted, the PLC can receive the recognition result of the industrial camera, and according to a preset algorithm and logic, the PLC can adjust the whitening condition of the rice grains. The pressure of the rice outlet is adjusted by adjusting the angle of the stepping motor, so that the uniformity and the quality of rice grains in the rice milling process are ensured, excessive or insufficient milling is avoided, the automation level of production of the rice mill is improved, the labor intensity of workers is reduced, and the quality and the market competitiveness of finished rice are improved.

Description

Technical Field

[0001] This utility model belongs to the field of rice milling machine technology, specifically relating to a rice milling machine outlet pressure regulating mechanism. Background Technology

[0002] As a crucial piece of equipment in grain processing, the rice milling machine's outlet pressure has a direct and significant impact on the whitening process. Whitening refers to the mechanical removal of the husk and bran from paddy rice, achieving a certain level of whiteness and precision in the grains. During the milling process, the pressure at the outlet directly affects the milling force applied to the rice grains and the whitening effect. If the pressure is too low, the rice grains may not be sufficiently whitened; conversely, excessive pressure can cause the grains to break, affecting the quality of the finished rice.

[0003] In traditional rice milling machines, operators rely on personal experience to judge and adjust the pressure at the rice outlet, which often requires extensive practical experience and is difficult for novice operators to master quickly. Secondly, because the state of the rice grains changes constantly during operation, operators need to continuously monitor the outlet to make timely adjustments. This manual monitoring method not only increases the operator's workload but also makes it difficult to guarantee the stability and consistency of rice milling quality, thereby reducing the quality and market competitiveness of the finished rice. Utility Model Content

[0004] The purpose of this invention is to provide a pressure regulating mechanism at the rice outlet of a rice milling machine to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A rice milling machine outlet pressure regulating mechanism includes a rice milling machine body. An outlet is provided on the right side of the rice milling machine body. An outlet chamber is installed on the right side of the outlet. A rice hopper is connected to the lower side of the outlet chamber. A bottom plate sloping downwards from left to right is provided at the bottom of the outlet chamber. A baffle matching the outlet is installed inside the outlet chamber. A horizontal bar is fixed to the right side of the baffle. A lead screw is slidably connected to the lead screw on its outer side. The right side of the lead screw is threaded to the right side wall of the outlet chamber. Support springs are fixedly connected to the baffle and the lead screw at their left and right ends respectively on the outer side of the horizontal bar. A spur gear is concentrically fixed to the right end of the lead screw. A long gear meshing with and rotatably connected to the spur gear is installed on its side and connected to the outlet chamber. A stepper motor connected to the long gear is fixed to the right side of the outlet chamber. An industrial camera fixedly connected to the rice milling machine body is installed on the upper right side of the bottom plate. The industrial camera has a built-in PLC, which is electrically connected to both the industrial camera and the stepper motor.

[0007] A matching dispersion groove is installed on the right side of the base plate. The distance between the front and rear sides of the dispersion groove gradually increases from left to right. Multiple dispersion rods are evenly installed on the inner left side of the dispersion groove in a triangular arrangement. Multiple dispersion strips are installed on the right side of the dispersion rods at intervals.

[0008] The dispersion trough is connected to a matching collection trough on its right side, and the collection trough gradually narrows from left to right.

[0009] A high-speed motor is mounted on the side of the industrial camera. A circular lens is rotatably mounted on the underside of the high-speed motor and is connected to it for transmission. The circular lens is located on the underside of the industrial camera. A matching housing is mounted on the outside of the circular lens, and the housing completely covers the underside of the industrial camera.

[0010] A fill light is installed on both the left and right sides of the outer casing, and a diffuser is installed on the lower side of each fill light.

[0011] This mechanism, through a combination of lead screw, spur gear, long gear, and stepper motor, can precisely adjust the pressure at the rice mill's outlet. Combined with an industrial camera and its built-in PLC, it can automatically adjust the pressure in real time based on the flow of rice grains and the milling effect, achieving intelligent control of the rice mill's outlet pressure. This intelligent design simplifies operation and makes the pressure adjustment more precise, helping to ensure the uniformity and quality of rice grains during milling, avoiding over- or under-milling, improving the automation level of rice milling production, reducing the labor intensity of workers, and thus improving the quality and market competitiveness of the finished rice. The design of the dispersion trough, dispersion rod, and dispersion strips ensures effective dispersion of rice grains during the outflow process, preventing... The accumulation and blockage of rice grains, making them easier for industrial cameras to identify, helps improve the accuracy of rice grain recognition. The design of the collection and dispersing troughs, which are connected and gradually narrow, makes it easier for workers to collect and receive the rice grains processed by the rice milling machine, improving the equipment's experimental convenience. The high-speed motor drives the circular lens to rotate at high speed and generates strong centrifugal force to prevent fine dust generated around the rice milling machine from contaminating the industrial camera lens, thus ensuring the cleanliness and clarity of the lower side of the industrial camera, improving the accuracy of rice grain recognition, and ensuring rice milling quality. The supplementary light and diffuser ensure that the dispersing trough has sufficient and uniform light, thus ensuring clear imaging, making the equipment as a whole unaffected by ambient light, and improving the stability and reliability of equipment operation. Attached Figure Description

[0012] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0013] Figure 1This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0015] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.

[0016] Figure 4 This is a partial cross-sectional structural diagram of the outer shell of this utility model.

[0017] Rice milling machine body 1, discharge port 2, discharge chamber 3, rice hopper 4, bottom plate 5, baffle plate 6, crossbar 7, lead screw 8, support spring 9, spur gear 10, long gear 11, stepper motor 12, industrial camera 13, dispersing trough 14, dispersing rod 15, dispersing strip 16, collecting trough 17, high-speed motor 18, circular lens 19, outer shell 20, supplementary light 21, diffuser 22. Detailed Implementation

[0018] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1-4 As shown, a rice milling machine outlet pressure regulating mechanism includes a rice milling machine body 1. An outlet 2 is provided on the right side of the rice milling machine body 1. An outlet chamber 3 is installed on the right side of the outlet 2. A rice hopper 4 is connected to the lower side of the outlet chamber 3. The bottom of the rice hopper 4 has a bottom plate 5 that slopes downwards from left to right. A baffle 6 matching the outlet 2 is installed inside the outlet chamber 3. A horizontal bar 7 is horizontally fixed to the right side of the baffle 6. A screw rod 8 is slidably connected to the horizontal bar 7 on its outer side. The right side of the screw rod 8 is threaded to the side wall of the right side of the outlet chamber 3. The side sleeve is equipped with support springs 9 that are fixedly connected to the baffle 6 and the lead screw 8 at the left and right ends respectively. A spur gear 10 is concentrically fixed at the right end of the lead screw 8. A long gear 11 that meshes with the spur gear 10 and is rotatably connected to the discharge chamber 3 is installed on the side of the spur gear 10. A stepper motor 12 that is driven and connected to the long gear 11 is fixed on the right side of the discharge chamber 3. An industrial camera 13 that is fixedly connected to the rice milling machine body 1 is installed on the upper right side of the base plate 5. The industrial camera 13 has a built-in PLC, which is electrically connected to the industrial camera 13 and the stepper motor 12 respectively.

[0020] When the rice milling machine is working, rice grains flow out from between the discharge port 2 and the baffle plate 6, and flow to the outside of the equipment through the bottom plate 5 on the lower side of the rice hopper 4. The support spring 9 provides pressure to the baffle plate 6. When it is necessary to adjust the pressure of the rice discharge port, the stepper motor 12 can precisely control the number of rotations and drive the long gear 11 to rotate. Through the spur gear 10, the lead screw 8 can be rotated. The left and right movement of the lead screw 8 can adjust the pressure of the baffle plate 6 on the discharge port 2, thereby adjusting the pressure of the rice discharge port and the whitening of the rice grains. The PLC (Programmable Logic Controller) is a publicly available technology. It can receive the recognition results of the industrial camera 13 and adjust the angle of the stepper motor 12 according to the preset algorithm and logic, thereby adjusting the pressure of the rice discharge port.

[0021] Through the combination of lead screw 8, spur gear 10, long gear 11 and stepper motor 12, this mechanism can precisely adjust the pressure at the rice milling machine's outlet. Combined with industrial camera 13 and its built-in PLC, it can automatically adjust the pressure in real time based on the flow of rice grains and the milling effect, achieving intelligent control of the rice milling machine's outlet pressure. This intelligent design simplifies operation and makes the outlet pressure adjustment more precise, helping to ensure the uniformity and quality of rice grains during milling, avoiding over- or under-milling, improving the automation level of rice milling production, reducing the labor intensity of workers, and thus improving the quality and market competitiveness of the finished rice.

[0022] A matching dispersion groove 14 is installed on the right side of the base plate 5. The distance between the front and rear sides of the dispersion groove 14 gradually increases from left to right. Multiple dispersion rods 15 are evenly installed on the inner left side of the dispersion groove 14 in a triangular arrangement. Multiple dispersion strips 16 are installed on the right side of the dispersion rods 15 at intervals.

[0023] The design of the dispersion groove 14, dispersion rod 15 and dispersion strip 16 enables the rice grains to be effectively dispersed during the outflow process, avoiding the accumulation and blockage of rice grains, and making it easier for the industrial camera 13 to identify them, thus helping to improve the accuracy of the industrial camera 13 in identifying rice grains.

[0024] The right side of the dispersion tank 14 is connected to a matching collection tank 17, which gradually narrows from left to right.

[0025] The connection between the collecting trough 17 and the dispersing trough 14, which gradually narrows, makes it easier for staff to collect and receive the rice grains processed by the rice milling machine, thus improving the experimental convenience of the equipment.

[0026] A high-speed motor 18 is mounted on the side of the industrial camera 13. A circular lens 19 is rotatably mounted on the underside of the high-speed motor 18 and is connected to it for transmission. The circular lens 19 is located on the underside of the industrial camera 13. A matching housing 20 is mounted on the outside of the circular lens 19, and the housing 20 completely covers the underside of the industrial camera 13.

[0027] The high-speed motor 18 can drive the circular lens 19 to rotate at high speed and generate strong centrifugal force to prevent fine dust generated around the rice milling machine from contaminating the lens of the industrial camera 13, thereby ensuring the cleanliness and clarity of the lower side of the industrial camera 13, improving the accuracy of the equipment in identifying rice grains, and ensuring the quality of rice milling.

[0028] A fill light 21 is installed on both the left and right sides of the outer casing 20, and a diffuser 22 is installed on the lower side of each fill light 21.

[0029] The supplementary light 21 and the diffuser 22 ensure that the diversion channel has sufficient and uniform light, thereby ensuring clear imaging, making the equipment as a whole unaffected by ambient light, and improving the stability and reliability of equipment operation.

[0030] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A pressure adjusting mechanism for a rice mill outlet, comprising a rice mill body, characterized in that: The right side of the rice mill body is provided with a discharge port, the right side of the discharge port is provided with a discharge cavity, the lower side of the discharge cavity is connected with a rice discharge hopper, the bottom of the rice discharge hopper is provided with a bottom plate inclined downward from left to right, the inner side of the discharge cavity is provided with a baffle matched with the discharge port, the right side of the baffle is horizontally fixed with a cross rod, the outer side of the cross rod is sleeved with a lead screw in sliding connection with the left and right sides of the cross rod, the right side of the lead screw is in threaded connection with the side wall of the right side of the discharge cavity, the outer side of the cross rod is sleeved with a supporting spring fixedly connected with the baffle and the lead screw at the left and right ends, respectively, the right end of the lead screw is fixedly provided with a spur gear, the side surface of the spur gear is provided with a long gear in engagement with the spur gear and in rotational connection with the discharge cavity, the right side of the discharge cavity is fixedly provided with a stepping motor in transmission connection with the long gear, the right upper side of the bottom plate is provided with an industrial camera fixedly connected with the rice mill body, the industrial camera is built-in with a PLC, and the PLC is in electrical connection with the industrial camera and the stepping motor, respectively.

2. A pressure regulating mechanism for the rice outlet of a rice mill according to claim 1, characterized in that: The right side of the bottom plate is provided with a dispersion tank matched therewith, the front and rear sides of the dispersion tank are gradually expanded from left to right, the left side of the dispersion tank is uniformly provided with a plurality of dispersion rods arranged in a triangular shape, and the right side of the dispersion rod is provided with a plurality of dispersion strips distributed in front and back.

3. A pressure regulating mechanism for the rice outlet of a rice mill according to claim 2, characterized in that: The right side of the dispersion tank is connected with a collection tank matched therewith, and the collection tank is gradually narrowed from left to right.

4. A pressure regulating mechanism for the rice outlet of a rice mill according to claim 3, characterized in that: The side surface of the industrial camera is provided with a high-speed motor, the lower side of the high-speed motor is rotatably provided with a circular lens in transmission connection with the high-speed motor, and the circular lens is located at the lower side of the industrial camera, the outer side of the circular lens is provided with a shell matched therewith, and the shell completely covers the lower side of the industrial camera.

5. A pressure regulating mechanism for the rice outlet of a rice mill according to claim 4, characterized in that: The left and right sides of the shell are provided with light supplementing lamps, respectively, and the lower side of the light supplementing lamp is provided with a light dispersing sheet. The left and right sides of the shell are provided with light supplementing lamps, respectively, and the lower side of the light supplementing lamp is provided with a light dispersing sheet.

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