CN212549682U - Rice mill precision on-line control system - Google Patents
Rice mill precision on-line control system Download PDFInfo
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- CN212549682U CN212549682U CN202020587264.2U CN202020587264U CN212549682U CN 212549682 U CN212549682 U CN 212549682U CN 202020587264 U CN202020587264 U CN 202020587264U CN 212549682 U CN212549682 U CN 212549682U
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- discharge door
- rice mill
- hopper
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Abstract
The utility model provides an online control system of rice mill precision, its degree of automation is high, can reduce the power consumption when guaranteeing best rice milling precision, and it is including going out the hopper, it installs out the discharge door to go out the hopper internal rotation, it passes through the cylinder drive to go out the discharge door, and it is still including the current sensor who is used for detecting the main motor current of rice mill, current sensor is connected with the PLC controller electricity, install electric proportional valve on the trachea of cylinder, electric proportional valve with the PLC controller is connected.
Description
Technical Field
The utility model relates to a grain processing equipment technical field, especially an online control system of rice mill precision.
Background
The rice mill is mainly used for husking and whitening in the rice processing process, is a main processing device on a production line, and needs to accurately control the rice milling precision and reduce the formation of broken rice in order to improve the quality of finished products in the rice milling process. At present, the rice milling precision control can be realized by controlling the pressure in the whitening chamber, and the traditional whitening chamber pressure control is realized by controlling the discharge door by a manual weight. However, the method of controlling the discharge door by the weight is easily affected by subjective motility of an operator, the whiteness of the machine rice is seen by the operator according to experience, and then the rice milling precision is adjusted by increasing or decreasing the weight, so that the operator needs to have rich experience to control the quality of the rice, and when the weight is increased or decreased, intermittent impact pressure is generated in a whitening chamber, and the precision cannot be continuously and stably adjusted.
The prior art provides a rice precision adjusting device in a vertical rice mill, which can solve the problem that the precision cannot be continuously and stably adjusted due to the increase and decrease of a weight in the prior art, for example, in patent No. CN203220928U, the opening and closing of a pressure gate is adjusted by a cylinder device, but the precision judgment of rice discharged from the rice mill is still realized by visual observation of an operator, the operator controls the opening and closing of a cylinder and a fine adjustment air pressure control valve according to the visual observation result, main technical indexes such as rice milling precision, rice crushing rate and ton meter power consumption are closely related to the experience and level of the operator, the main indexes are different due to human difference, the control of the production process is not convenient, and the operation cost is also increased.
SUMMERY OF THE UTILITY MODEL
To the precision that exists among the prior art through subjective range estimation play machine rice, the mode of opening and closing of manual control cylinder and fine setting pneumatic control valve easily leads to husk rice accuracy control relatively poor, influences the problem that rice rate and power consumption are high, the utility model provides an online control system of rice mill precision, its degree of automation is high, when guaranteeing best husk rice precision, can reduce garrulous rice rate and power consumption.
The utility model provides an online control system of rice mill precision, its includes out the hopper, it installs the discharge door to go out the hopper internal rotation, the discharge door passes through the cylinder drive, and it still includes the current sensor who is used for detecting the main motor operating current of rice mill, current sensor is connected with the PLC controller electricity, a serial communication port, install electric proportional valve on the trachea of cylinder, electric proportional valve with the PLC controller is connected.
The discharging device is further characterized in that the discharging door is arranged in the discharging hopper through a lug and a discharging door rotating shaft, one end of the lug is rotatably connected with the discharging door rotating shaft, the other end of the lug is fixedly connected with one side end of the discharging door, the middle part of the discharging door is hinged with a piston rod of the air cylinder through a pin shaft, and the air cylinder is hinged on a shell outside the discharging hopper through an air cylinder rotating shaft;
a first support is arranged in the middle of the outer side of the discharge hopper, the rotating shaft of the air cylinder penetrates through the body of the air cylinder and is hinged with the first support, a second support is arranged in the middle of the discharge door, and a piston rod of the air cylinder is hinged with the second support;
a baffle is arranged between the lug and the discharge hopper, one end of the baffle is abutted against the lug, and the other end of the baffle is rotatably connected with the inner end face of the discharge hopper through a baffle rotating shaft;
the baffle rotating shaft is sleeved with a torsion spring.
Adopt above-mentioned structure can reach following beneficial effect: the current sensor detects the current of the main motor, the current value information is sent to the PLC, the current value information is compared with a current threshold value preset in the controller, the controller controls the opening size of the electric proportional valve according to a comparison result, the electric proportional valve controls the stroke of the air cylinder again, the piston rod of the air cylinder is controlled through the electric proportional valve to push the discharging door to rotate clockwise or anticlockwise, when the discharging door rotates clockwise, the outflow caliber of the discharging hopper is reduced, the internal pressure of a milling chamber of the rice mill is increased, the rice milling precision is improved, otherwise, the internal pressure is reduced, automatic control of the rice milling precision is achieved, manual rice milling precision does not need to be visually observed, the automation degree is greatly improved, the problem that the rice milling precision is low due to subjective difference is avoided, and the product quality is ensured.
Drawings
Fig. 1 is a block diagram of the system structure of the present invention;
fig. 2 is a schematic sectional structure view of a main view of the discharge hopper.
Detailed Description
Referring to fig. 1 and 2, an online rice mill precision control system comprises a discharge hopper 1, a discharge door 2 is rotatably installed in the discharge hopper 1, the discharge door 2 is driven by a cylinder 3, the online rice mill precision control system also comprises a current sensor 4 for detecting the current of a main motor of the rice mill, the current sensor 4 is electrically connected with a PLC (programmable logic controller) 5, an electric proportional valve 6 is installed on an air pipe of the cylinder 3, the electric proportional valve 6 is used for controlling the flow of air in the air pipe, and the electric proportional valve 6 and the cylinder 3 are both connected with the PLC 5;
the discharge door 2 is arranged in the discharge hopper 1 through a lug 21 and a discharge door rotating shaft 22, one end of the lug 21 is rotatably connected with the discharge door rotating shaft 22, the other end of the lug 21 is welded with the upper end of the discharge door 2, the middle part of the discharge door 2 is hinged with a piston rod of the cylinder 3 through a pin shaft 23, and the cylinder 3 is hinged on an outer shell of the discharge hopper 2 through a cylinder rotating shaft 31;
a first support 11 is arranged in the middle of the outer side of the discharge hopper 1, a cylinder rotating shaft 31 penetrates through a body of a cylinder 3 and is hinged with the first support 11, a second support 24 is arranged in the middle of the discharge door 2, and a piston rod of the cylinder 3 is hinged with the second support 24 through a pin shaft 23;
a baffle 7 is arranged between the lug 21 and the discharge hopper 1, one end of the baffle 7 is rotatably arranged in the discharge hopper through a baffle rotating shaft 71, the other end of the baffle 7 is abutted against the side end face of the lug 21, a torsion spring is sleeved on the baffle rotating shaft 71, the baffle 7 is abutted against the side end face of the lug 21 by virtue of self gravity and torsion of the torsion spring, when the lug 21 rotates along with the discharge door rotating shaft 22, the other end of the baffle 7 can be ensured to be tightly attached to the lug 21 under the action of the self gravity of the baffle 7 and the torsion of the torsion spring, and the rice milling precision is prevented from being influenced by leakage of the machine rice along a gap between the lug;
the controller can adopt the PLC controller in this embodiment, be provided with memory and data processing module in the PLC controller, setting and the comparison procedure about the current threshold value in memory and the data processing module all can adopt current conventional technical means to realize, the automatically controlled connection of PLC controller and touch-sensitive screen 8, according to the difference of the variety of rice, moisture, operating personnel sets for the current threshold value in advance through the touch-sensitive screen (the determination of current threshold value can adopt current conventional technical means to realize), this current threshold value is confirmed according to the husk rice precision.
The research of the prior art shows that when the external pressure is increased, the materials are difficult to discharge from a whitening chamber of the rice mill, so that the pressure of the whitening chamber is increased, the load of a main motor is increased, the current is increased along with the increase of the load, the rice milling precision is improved, and the rice crushing rate and the ton meter power consumption are increased; on the contrary, when the external pressure is reduced, the materials are easily discharged out of the whitening chamber, the pressure of the whitening chamber is reduced, the load and the current of the main motor are also reduced, the rice milling precision is reduced, and the rice crushing rate and the ton-meter power consumption are reduced. Therefore, the rice milling precision and the current of the main motor have a certain proportional relation, and the rice milling precision can be determined by detecting the current of the main motor; the rice milling precision is not good when being too high or too low, the rice milling precision needs to be balanced in an optimal precision range (at the moment, the current of a main motor is an optimal current threshold), the quality of finished rice is ensured, and the rice crushing rate and the power consumption per ton of rice are low.
According to a certain proportional relation between rice milling precision and current of a main motor, the current value of the main motor is acquired on line in real time through a current sensor 4, a PLC (programmable logic controller) is compared with an optimal current threshold (within a small interval range) to calculate a compensation value, if the current threshold is lower than the current threshold (the compensation value is positive), the PLC sends an instruction to enable an electric proportional valve 6 to control an air cylinder 3 to push out and drive a discharge door 2 to rotate clockwise, the discharge door 2 is closed, the pressure of a white milling chamber is increased, the white milling precision is synchronously improved, the current of the main motor is increased at the same time, the air cylinder does not act any more and keeps the discharge door balanced until the current rises within the optimal current threshold range, and at the moment, the rice milling rate of the rice mill is low; otherwise, the control cylinder 3 retracts and drives the discharge door 2 to rotate anticlockwise, the outflow caliber of the discharged rice is increased, and the whitening precision is reduced. Through tests, the rice milling machine precision online control technology can reduce the rice crushing rate by 1.5 percent and reduce the power consumption per ton meter by 5 to 6 percent.
Claims (5)
1. The utility model provides an online control system of rice mill precision, its includes out the hopper, it installs the discharge door to go out the hopper internal rotation, the discharge door passes through the cylinder drive, and it still includes the current sensor who is used for detecting the main motor operating current of rice mill, current sensor is connected with the PLC controller electricity, a serial communication port, install electric proportional valve on the trachea of cylinder, electric proportional valve with the PLC controller is connected.
2. The rice mill precision on-line control system of claim 1, wherein the discharge door is installed in the discharge hopper through a lug and a discharge door rotating shaft, one end of the lug is rotatably connected with the discharge door rotating shaft, the other end of the lug is welded with the upper end of the discharge door, the middle part of the discharge door is hinged with a piston rod of the cylinder through a pin shaft, and the cylinder is hinged on a shell outside the discharge hopper through a cylinder rotating shaft.
3. The rice mill precision on-line control system of claim 2, wherein a first support is arranged in the middle of the outer side of the discharge hopper, the cylinder rotating shaft penetrates through the body of the cylinder and is hinged with the first support, a second support is arranged in the middle of the discharge door, and the piston rod of the cylinder is hinged with the second support through a pin shaft.
4. An on-line rice mill accuracy control system as claimed in claim 3, wherein a baffle is arranged between said lug and said discharge hopper, one end of said baffle is abutted against said lug, and the other end of said baffle is rotatably connected with the inner end face of said discharge hopper through a baffle rotating shaft.
5. An on-line rice mill accuracy control system as claimed in claim 4, wherein a torsion spring is sleeved on said baffle plate rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020587264.2U CN212549682U (en) | 2020-04-17 | 2020-04-17 | Rice mill precision on-line control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020587264.2U CN212549682U (en) | 2020-04-17 | 2020-04-17 | Rice mill precision on-line control system |
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| Publication Number | Publication Date |
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| CN212549682U true CN212549682U (en) | 2021-02-19 |
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| CN202020587264.2U Active CN212549682U (en) | 2020-04-17 | 2020-04-17 | Rice mill precision on-line control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112892649A (en) * | 2021-03-08 | 2021-06-04 | 四川钭进科技有限公司 | Full-automatic combined rice machine and control method thereof |
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2020
- 2020-04-17 CN CN202020587264.2U patent/CN212549682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112892649A (en) * | 2021-03-08 | 2021-06-04 | 四川钭进科技有限公司 | Full-automatic combined rice machine and control method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210324 Address after: 214035 Jiangsu city of Wuxi Province River Road No. 186 Patentee after: COFCO ENGINEERING & TECHNOLOGY Co.,Ltd. Patentee after: SATAKE MANUFACTURING (SUZHOU) Co.,Ltd. Address before: 214035 Jiangsu city of Wuxi Province River Road No. 186 Patentee before: COFCO ENGINEERING & TECHNOLOGY Co.,Ltd. |