Intelligent grinding equipment

Abstract

The object of the present invention is to provide a grinding device that quickly reaches an optimal stable state in the initial stage. The present invention specifically provides an intelligent grinding device, including a grinding device and a control device, characterized in that the main roller driving mechanism is a motor, the discharging mechanism has a grinding chamber discharging assembly for discharging, and the grinding chamber discharging assembly has different opening openings, and the control device includes: an opening current value storage unit, which stores different grinding current values ​​and the opening openings corresponding to each grinding current value; a current setting unit, which sets a current value used in the grinding process as the current setting current value; a retrieval and acquisition unit, which is used to search the opening current value storage unit according to the current setting current value and obtain the opening opening corresponding to the current setting current value; and a discharging control unit, which controls the discharging mechanism using the opening opening as the initial opening opening of the grinding process.

Description

Technical Field

[0001] The invention belongs to the field of grain processing machinery, and in particular relates to an intelligent grinding device for grinding grains. Background Art

[0002] Milling is often required during grain processing. For example, after the husk is removed from the grain, brown rice is formed. After the brown rice is milled to remove the cortex, germ, etc., polished rice is formed.

[0003] In the existing technology, the various operating parameters of the grinding equipment are fixed at the beginning of processing; after a period of processing, the operator takes samples for analysis and then adjusts the parameters based on the analysis results. This manual judgment and adjustment method is not only manpower-consuming, but also has the possibility of generating errors and affecting product quality.

[0004] To achieve automated control, existing technologies also include devices that use automatic detection and real-time feedback adjustments based on the test results. However, this feedback adjustment method requires a period of time for the equipment to gradually stabilize during initial operation. During this period, the resulting grain products often fail to meet quality standards and need to be discarded or reprocessed, resulting in insufficient overall efficiency. Summary of the Invention

[0005] In order to solve the above problems, a grinding device is provided that can quickly reach an optimal stable state in the early stage of processing. The present invention adopts the following technical solutions:

[0006] The present invention provides an intelligent grinding device for grinding grains, comprising: a grinding device for grinding grains; and a control device for controlling the grinding process, wherein the grinding device comprises a main drum, a main drum driving mechanism for driving the main drum to rotate, an abrasive belt driven by the main drum, a plurality of whitening chambers for accommodating grains and cooperating with the abrasive belt to achieve grinding, and a discharge mechanism for discharging the grains after being ground in the whitening chambers, wherein the main drum driving mechanism is a motor, and the discharge mechanism comprises a grinding chamber discharge assembly for discharging materials in the whitening chamber, and the grinding chamber discharge assembly has a plurality of There are opening openings corresponding to different discharge flow rates, and the control device includes: an opening current value storage unit, which stores different grinding current values ​​when the main roller driving mechanism drives the main roller to perform grinding processing and the opening openings corresponding to each grinding current value; a current setting unit, which sets a current value used in the grinding process as the current set current value; a retrieval and acquisition unit, which is used to search the opening current value storage unit according to the current set current value and obtain the opening opening corresponding to the current set current value; a discharge control unit, which controls the discharge mechanism by at least using the opening opening as the initial opening opening for grinding processing.

[0007] The above-mentioned intelligent grinding equipment provided by the present invention may also have such technical features, wherein the control device also includes: a screen storage unit, which stores a current value setting screen; an input display unit, which displays the current value setting screen so that the operator can input a current value for grinding processing, and a grinding current acquisition unit acquires the current value input by the operator and sets the input current value as the current set current value.

[0008] In addition, the above-mentioned intelligent milling equipment provided by the present invention may also have such technical features, wherein the control device also includes: a standard current value storage unit, which stores different grain varieties and standard milling current values ​​corresponding to each grain variety; a screen storage unit, which stores a milling variety selection screen; an input display unit, which displays the milling variety selection screen and displays the grain varieties in the standard current storage unit in the milling variety selection screen so that the operator can select one as the current milling variety, and the current setting unit obtains the standard milling current value corresponding to the current milling variety from the standard current storage unit according to the operator's selection, and sets the obtained standard milling current value as the current set current value.

[0009] The above-mentioned intelligent grinding equipment provided by the present invention may also have such technical features, wherein the control device also includes a grinding current value acquisition unit, which is used to obtain the current grinding current value in real time according to the working current value of the main roller driving mechanism during the grinding process, and the discharging control unit also controls the opening degree of the discharging mechanism in real time according to the size relationship between the current grinding current value and the current set current value during the grinding process.

[0010] Furthermore, in the above-mentioned intelligent grinding equipment, the control device can also include a current recording and storage unit and an opening and closing value updating unit. The current recording and storage unit is used to record the current grinding current value and the corresponding opening degree in each grinding process; the opening and closing value updating unit is used to update the storage content of the opening current value storage unit according to the records in the current recording and storage unit.

[0011] In addition, in the above-mentioned intelligent grinding equipment, the grinding current value acquisition unit can also include a no-load current value storage unit, a current current value acquisition unit and a grinding current value calculation unit. The current current value acquisition unit acquires the current of the no-load startup of the main roller drive mechanism as the no-load current value. The no-load current value storage unit stores the no-load current value. The current current value acquisition unit acquires the current working current value of the main roller drive mechanism. The grinding current value calculation unit subtracts the current working current value from the no-load current value to obtain the current grinding current value.

[0012] The above-mentioned intelligent grinding equipment provided by the present invention may also have such technical features, that is, the grinding chamber discharge assembly has an outlet portion arranged at the lower end of the grinding chamber, a rotating plate rotatably installed in the outlet portion, and a toggle member capable of pushing the rotating plate to rotate, and the opening angle is the angle between the rotating plate and the outlet portion.

[0013] Furthermore, in the above-mentioned intelligent grinding equipment, the discharging mechanism may also include a discharging adjustment component, which has a turntable that can push the toggle member to rotate to change the angle of the rotating plate and a driving member that drives the turntable to rotate. The discharging control part drives the turntable to rotate by controlling the driving member to change the opening between the rotating plate and the outlet part.

[0014] Furthermore, in the above-mentioned intelligent grinding equipment, the driving part can be a motor, and the discharge adjustment component also has a coupling and a push rod connecting the driving part and the turntable, as well as proximity switch 1 and proximity switch 2 arranged near the turntable. The positions of proximity switch 1 and proximity switch 2 respectively correspond to the position where the rotating plate completely fits the outlet part and the position where the rotating plate is farthest from the outlet part, and the opening degree is obtained according to the electrical signals of proximity switch 1 and proximity switch 2.

[0015] In addition, in the intelligent grinding equipment provided by the present invention, the discharge mechanism may include a plurality of discharge valves arranged at the lower end of the grinding chamber, the discharge valves are electrically controlled valves, and the opening angle is the opening angle of the electrically controlled valves.

[0016] Functions and effects of the invention

[0017] According to the intelligent grinding equipment provided by the present invention, since the opening current value storage unit stores different grinding currents and corresponding opening openings, when it is necessary to grind grains under a certain grinding current, the required grinding current can be set as the current setting current through the current setting unit, and the discharging mechanism can be directly controlled to the corresponding opening opening through the discharging control unit, thereby eliminating the process of repeatedly automatically adjusting the opening opening in order to achieve the required grinding current before reaching a balanced state, so that the grinding device can work under the required grinding current from the beginning and achieve an ideal working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural block diagram of the intelligent grinding equipment according to the first embodiment of the present invention;

[0019] Figure 2 1 is a side structural diagram of the intelligent grinding device according to the first embodiment of the present invention;

[0020] Figure 3 is a three-dimensional structural diagram of the intelligent grinding equipment according to the first embodiment of the present invention;

[0021] Figure 4 1 is a top view of the structure of the grinding device according to the first embodiment of the present invention;

[0022] Figure 5 1 is a structural diagram of a whitening chamber according to a first embodiment of the present invention;

[0023] Figure 6 is a three-dimensional structural diagram of a milling chamber discharge assembly according to an embodiment of the present invention;

[0024] Figure 7 This is a three-dimensional structural diagram of the whitening chamber and the discharge adjustment assembly in the embodiment of the present invention in a coordinated state;

[0025] Figure 8 This is a cross-sectional structural diagram of the whitening chamber and the discharge adjustment assembly in the embodiment of the present invention in the coordinated state;

[0026] Figure 9 This is an action flow chart of the intelligent grinding equipment according to the first embodiment of the present invention;

[0027] Figure 10 This is a structural block diagram of the intelligent grinding equipment according to the second embodiment of the present invention.

[0028] Reference numerals: intelligent grinding device 100; grinding device 10; frame 11; base 111; column 112; main drum 12; main drum body 121; main drum shaft 122; tensioning drum 13; sanding belt 14; whitening chamber 15; grinding chamber 151; discharge channel 152; feed port 153; discharge port 154; discharge pipe 16; bran discharge channel 17; fan 18; silo 2; main drum driving mechanism 3; feed mechanism 4; discharge mechanism 5; discharge mounting platform 50; outlet portion 51; rotating plate 52; reset Part 53; toggle part 54; turntable 55; notch 55a; coupling 56; driving part 57; push rod 58; proximity switch 1 59; proximity switch 2 60; control device 20; input display part 21; opening current value storage part 22; standard current value storage part 23; screen storage part 24; current setting part 25; retrieval acquisition part 26; grinding current value acquisition part 27; comparison and judgment part 28; discharge control part 29; operation switch 30; main control part 31; current recording storage part 32; opening and closing value update part 33. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention is described below with reference to the accompanying drawings and embodiments.

[0030] <Example 1>

[0031] This embodiment provides an intelligent grinding device for grinding grains.

[0032] Figure 1 This is a structural block diagram of the intelligent grinding equipment according to the first embodiment of the present invention. Figure 2 It is a side structural diagram of the intelligent grinding equipment according to the first embodiment of the present invention.

[0033] like Figure 1 as well as Figure 2 As shown, the intelligent grinding device 100 includes a grinding device 10 and a control device 20. The grinding device 10 includes a grinding mechanism 1, a silo 2, a main roller drive mechanism 3, a feed mechanism 4, and a discharge mechanism 5. The silo 2 is disposed above the grinding device and is secured by a support structure such as a support frame or support column (the support structure is not shown in the figure).

[0034] Figure 3 This is a three-dimensional structural diagram of the grinding equipment according to the first embodiment of the present invention. Figure 3 The silo 2 and the structures below the platform 200 are omitted.

[0035] like Figure 1-Figure 3 As shown, the grinding mechanism 1 includes a frame 11, a main roller 12, a tensioning roller 13, a sanding belt 14 and a plurality of whitening chambers 15.

[0036] Figure 4 This is a top view of the structure of the grinding equipment according to the first embodiment of the present invention. Figure 4 The silo 2, the feeding mechanism 4 and the whitening chamber 15 are omitted.

[0037] like Figure 2-Figure 4 As shown, the frame 11 has a base 111 , a column 112 and a top cover 113 .

[0038] The base 111 is in the shape of a rectangular plate and is used to support the entire grinding device 10 .

[0039] like Figure 2 As shown, in this embodiment, the grinding device 10 is arranged on a platform 200 above the ground in a production workshop, so the base 111 is placed on the upper surface of the platform 200 .

[0040] There are two upright posts 112 , both of which are hollow columnar structures with an approximately rectangular cross-section. They are disposed on the base 11 and are located at two adjacent corners of the base 111 .

[0041] The top cover 113 is arranged across the top ends of the two columns 112, covering the two columns 112 (the top cover 113 is arranged on the top ends of the two columns 112). Figure 4 not shown).

[0042] The main drum 12 includes a cylindrical main drum body 121 and a main drum shaft 122. The main drum body 121 is cylindrical and is arranged on the top of the discharge mounting platform 50, extending in the vertical direction, and the end surface is parallel to the horizontal plane.

[0043] The main drum shaft 122 is disposed at the axis center of the main drum body 121 and is fixedly connected to the main drum 12 .

[0044] In this embodiment, the main roller driving mechanism 3 is a motor with adjustable speed, the output end of which is fixedly connected to the main roller shaft 122 and can drive the main roller shaft 122 to rotate, thereby driving the main cylinder body 21 to rotate.

[0045] The tensioning roller 13 is arranged at one side of the main roller 12 , and its axis is substantially parallel to the axis of the main roller 12 .

[0046] The abrasive belt 14 is mounted on the outer sides of the main drum 121 and the tensioning drum 13. Its outer surface is roughened and is used to contact the grain for grinding. In addition, a belt deflection adjustment device can be provided on the tensioning drum 13 to prevent the belt from shifting. The specific structure and operating principle of this device can be adopted from the patent CN 202021909873.1 previously applied for by the applicant and will not be repeated here.

[0047] like Figure 2 、 Figure 3 As shown, the feed mechanism 4 is located at the top of the main cylinder 121 and has an external appearance of a truncated cone with a small top and a large bottom. Multiple feed passages are formed internally, separated by partitions. The top of the feed mechanism 4 is connected to the silo 2 via a feed pipe, allowing grain in the silo 2 to enter the feed mechanism 4 and be divided into multiple feed passages by the feed pipe. In this embodiment, a feed valve (not shown) is provided at the connection between the feed mechanism 4 and the feed pipe.

[0048] A plurality of whitening chambers 15 are arranged evenly along the circumferential direction and close to the sanding belt 14 on the outer side of the circumferential surface of the main cylinder 121. In this embodiment, the number of whitening chambers 15 and feed passages is 12, and each whitening chamber 15 corresponds to a feed passage.

[0049] Figure 5 It is a structural diagram of the whitening chamber of the first embodiment of the present invention.

[0050] like Figure 5 As shown, the whitening chamber 15 is used to accommodate grains and cooperate with the sand belt 14 to grind the grains. It has a grinding cavity 151, a discharge channel 152, a feed port 153 and a discharge port 154.

[0051] The grinding chamber 151 is a vertically extending channel structure comprising three sequentially connected flat plates. The cross-section of the structure formed by these three plates is trapezoidal, with the longer bottom portion of the trapezoid being open, facing the abrasive belt 14 so as to mate with the abrasive belt 14. The bottom portion of the grinding chamber 151 is a grinding opening, and the top portion is a grinding chamber inlet.

[0052] The discharge channel 152 is disposed at the bottom of the grinding chamber 151, with its upper end communicating with the bottom of the grinding chamber 151. The discharge channel 152 is inclined relative to the grinding chamber 151, that is, the length of the discharge channel 152 forms an obtuse angle with the length of the grinding chamber 151.

[0053] The feed port 153 is disposed at the top of the grinding chamber 151 , with its upper portion communicating with the bottom end of the corresponding feed passage, and its lower portion communicating with the top end of the grinding chamber 151 .

[0054] The discharge port 154 is disposed at the bottom of the discharge channel 152 and communicates with the bottom end of the discharge channel 152 .

[0055] In this embodiment, the discharge mechanism 5 is used to discharge the grain after being ground in the whitening chamber 15. It includes multiple grinding chamber discharge assemblies, a discharge adjustment assembly, and a discharge mounting platform 50 that accommodates the grinding chamber discharge assemblies and the discharge adjustment assembly. The discharge mounting platform 50 is mounted on the base 111 and has a hollow cylindrical cross-section with a circular arc greater than 60°. The number of grinding chamber discharge assemblies is the same as that of the whitening chambers 15, namely 12, and each corresponds to a whitening chamber 15.

[0056] Figure 6 It is a three-dimensional structural diagram of the grinding chamber discharge assembly according to an embodiment of the present invention.

[0057] like Figure 6 As shown, in this embodiment, each grinding chamber discharge assembly includes an outlet portion 51 , a rotating plate 52 , a reset member 53 and a toggle member 54 .

[0058] The outlet portion 51 is in the shape of a rectangular frame and is disposed at the lower end of the milling chamber 15 . The upper portion thereof is communicated with the milling chamber 151 , and the lower portion thereof is communicated with the discharge channel 152 .

[0059] The rotating plate 52 is a flat plate that can rotate around a horizontal axis and has a rotating end rotatably mounted in the outlet portion 51 and a free end opposite to the rotating end. Specifically, the rotating end is rotatably mounted in the outlet portion 51 at a position close to the inner wall through a pin.

[0060] The reset member 53 is a torsion spring mounted on the pin of the rotating plate 52 , which provides a spring force to the rotating plate 52 to make the rotating plate 52 close to the outlet portion 51 .

[0061] The toggle member 54 is disposed below the rotating plate 52 and close to the rotating end. The toggle member 54 can contact the lower surface of the rotating plate 52 and push the rotating plate 72 to rotate toward the edge of the outlet portion 51 .

[0062] Figure 7This is a three-dimensional structural diagram of the whitening chamber and the discharge adjustment component in the embodiment of the present invention. Figure 7 FIG. 1 shows a state in which a whitening chamber 15 cooperates with a discharge adjustment assembly. Figure 8 It is a cross-sectional structural diagram of the whitening chamber and the discharge adjustment component in the coordinated state according to an embodiment of the present invention.

[0063] like Figure 7 、 Figure 8 As shown, the discharge adjustment assembly includes a turntable 55, a coupling 56, a push rod 58, a proximity switch 1 59, a proximity switch 2 60 and a driving member 57.

[0064] The turntable 55 is mounted on the bottom of the main drum 12, and its axis coincides with the axis of the main drum 121. The edge of the turntable 55 is provided with a plurality of notches 55a, each notch 55a corresponding to the position of the toggle member 54 and fitted with the toggle member 54.

[0065] When the turntable 55 rotates clockwise or counterclockwise, it can push the toggle member 54 to Figure 9 By moving the rotating plate 52 to the left or right, the angle between the rotating plate 52 and the outlet portion 51 is increased or decreased, and the opening formed between the two is increased or decreased, so that the flow rate of grains flowing out of the grinding cavity 151 is increased or decreased. In other words, it can play the role of regulating the discharge flow rate.

[0066] The coupling shaft 56 is fixedly connected to the bottom of the turntable 55 and extends downward from the bottom surface of the turntable 55 .

[0067] The push rod 58 is provided on one side of the coupling 56 and is connected to the coupling 56 . The push rod 58 can push the coupling 56 to swing in the horizontal direction, thereby driving the turntable 55 to rotate clockwise or counterclockwise in the horizontal plane.

[0068] The driving member 57 is a motor, which is electrically connected to the control device 20 and can be controlled by the control device 20 to drive the push rod 58 to move, thereby pushing the coupling 56 to move. Specifically, the driving member 57 can be formed by a stepping motor.

[0069] Proximity switch 1 59 is positioned below turntable 55. It corresponds to the position of coupling 56 when rotating plate 52 is fully abutting outlet 51 (i.e., the opening between them is closed). It senses the distance between it and coupling 56 and generates a corresponding electrical signal. Because the opening between rotating plate 52 and outlet 51 effectively forms the outlet for grain in grinding chamber 151, for ease of description, the opening formed between rotating plate 52 and outlet 51 will be referred to as the grinding opening.

[0070] The proximity switch 2 60 is arranged below the turntable 55, corresponding to the position of the coupling 56 when the rotating plate 52 is farthest from the outlet 51 (i.e. the grinding opening is fully opened), and can sense the distance between it and the coupling 56 and generate a corresponding electrical signal.

[0071] In other words, the positions of proximity switch 1 59 and proximity switch 2 60 correspond to the starting and ending points of the travel of rotating plate 52 from fully closed to fully open, respectively. Based on the electrical signals from these two switches, the current position of coupling 56 and the degree of rotation of turntable 55 can be analyzed and determined, thereby determining the degree of opening of the milling opening and performing feedback control based on this degree of opening. The degree of opening of the milling opening is hereinafter referred to as the opening degree. This degree of opening is obtained by combining the signals from proximity switch 1 59 and proximity switch 2 60 and can be expressed as the percentage of the current travel of rotating plate 52 to the travel of rotating plate 52 in the fully open state.

[0072] The discharge platform 50 is internally provided with a plurality of discharge passages (not shown). These passages, numbering 12, are arranged in a circular pattern and correspond to the positions of the respective milling chambers 15. Each discharge passage is approximately tubular in shape, with its upper end connected to the lower end of the outlet portion 51. This allows grain in the milling chamber 151 to flow downward through the outlet portion 51 into the discharge passage. A discharge pipe 16 is also provided below the discharge platform 50. The lower end of each discharge passage is connected to this discharge pipe 16, allowing the ground grain in the milling chamber 15 to flow into the discharge pipe 16 and then out through the discharge pipe 16.

[0073] like Figure 1 As shown, the control device 20 includes an input display unit 21, an opening current value storage unit 22, a standard current value storage unit 23, a screen storage unit 24, a current setting unit 25, a retrieval acquisition unit 26, a grinding current value acquisition unit 27, a comparison and judgment unit 28, a discharge control unit 29, an operation switch 30 and a general control unit 31.

[0074] The input display unit 21 is a touch screen display for allowing an operator to perform human-computer interaction operations.

[0075] The opening current value storage unit 22 stores different milling current values ​​when the main roller driving mechanism 3 drives the main roller to perform a milling process and the opening degrees corresponding to the respective milling current values.

[0076] In the milling device 10 of this embodiment, after the main roller drive mechanism 3 drives the main roller 12 to rotate, the main roller 12 further drives the sanding belt 14 to move and grind the grain in each milling chamber 15. During this process, the real-time operating current of the main roller drive mechanism 3, especially the operating current (i.e., the milling current) after removing the no-load current component, can accurately reflect the load condition during milling operation. This load condition corresponds to the degree of grain milling. Therefore, the milling current value can be directly used as an indicator to judge the degree of grain milling. In addition, under the condition that other conditions remain unchanged, the opening degree of the discharge mechanism 5 is related to the grain discharge flow rate. The grain discharge flow rate determines the actual retention time of the grain in the milling chamber 15 and, accordingly, the actual degree of grain milling. Therefore, the opening degree and the milling current value are positively correlated. Due to the differences in the actual component conditions and actual operating environment of each milling device 10, this positive correlation is not completely consistent. The corresponding relationship between different milling current values ​​and different opening degrees can be determined through pre-testing at the factory. The opening current value storage unit 22 stores such different grinding current values ​​and opening degrees in correspondence. For example, when the grinding current value is 5V, the corresponding opening degree is 60%, and the current value "5V" and the opening degree "60%" are stored in correspondence.

[0077] The standard current value storage unit 23 stores different milling varieties and corresponding standard current values. Specifically, milling varieties include multiple grain types and different grain varieties corresponding to the same grain type. For example, milling varieties may include glutinous rice, indica rice, japonica rice, brown rice, and wheat. The standard current value is the optimal milling current value corresponding to each milling variety. The corresponding optimal milling current value can be obtained by actually testing different milling varieties using the intelligent milling device 100 of this embodiment, and then recorded and stored when the device leaves the factory.

[0078] The screen storage unit 24 stores human-computer interaction screens for the input display unit 21 to display, including a current value setting screen, a grinding variety selection screen, and a grinding status display screen. Among them, the current value setting screen is used to allow the user to input the set current value required for the current grinding, and the set current value can be obtained by the operator based on experience during actual use. The grinding variety selection screen is used to display the grinding varieties stored in the standard current value storage unit 24, so that the operator can select the current grinding variety to be ground. The grinding status display screen is used to display information such as the current grinding current value during the grinding process. In addition, the screen storage unit 24 can also store an operation selection screen, allowing the operator to select the current value setting or grinding variety selection operation when starting the machine. After the operator selects the operation, the input display unit 21 will display the current value setting screen or the grinding variety selection screen accordingly.

[0079] The current setting unit 25 is used to set the milling current value used in the milling process, that is, the currently set current value. The currently set current value is mainly used in the early stage of the milling process. Specifically, when milling starts, the feed valve in the feed mechanism 4 is first opened to allow the grains to flow into and fill each milling chamber 15; then, the main roller drive mechanism 3 works to first perform an initial milling on the grains filled in each milling chamber 15, and then the discharging mechanism 5 opens a certain milling opening (that is, the initial opening) to allow the grains after initial milling to flow out. The function of the currently set current value is to allow the main roller drive mechanism 3 to work at the currently set current value during the initial milling process, and the initial opening opening of the discharging mechanism 5 is also opened according to the currently set current value.

[0080] In this embodiment, there are two ways for the current setting unit 25 to set the current setting value: when the operator directly inputs the current value through the current setting screen, the input current value is directly set as the current setting current value; when the operator selects the grinding variety through the grinding variety selection screen, the standard current value retrieved by the retrieval unit 26 is set as the current setting current value.

[0081] The retrieval unit 26 is used to retrieve the opening degree and standard current value. Specifically, after the operator selects a milling type on the milling type selection screen, the standard current value storage unit 23 is searched to obtain the standard current value corresponding to the selected milling type. After the current setting unit 25 sets the current setting value, the opening degree current value storage unit 22 is searched to obtain the opening degree corresponding to the current setting value.

[0082] The milling current value acquisition unit 27 includes a current value acquisition unit 271 , a no-load current value storage unit 272 , and a milling current value calculation unit 273 .

[0083] The current current value acquisition unit 271 is used to acquire the current operating current value of the main roller drive mechanism 3 during operation. In this embodiment, the current current value acquisition unit 271 is provided in the frequency converter of the motor constituting the main roller drive mechanism 3, thereby directly acquiring the current operating current value.

[0084] The no-load current value storage unit 272 stores the no-load current value. In this embodiment, the no-load current value storage unit 272 is a temporary storage unit. After the equipment is powered on, before the initial grinding begins (that is, before the feed valve is opened), the main roller drive mechanism 3 is allowed to work for a short period of time (for example, 3s-5s), which is equivalent to running in a no-load state without grain for a short period of time. During this period, the current working current value of the main roller drive mechanism 3 obtained by the current current value acquisition unit 271 (which can be the average value of the current working current value during this period) is the no-load current value, and the no-load current value storage unit 272 temporarily stores the no-load current value.

[0085] The milling current value calculation unit 273 is used to calculate the milling current value. Specifically, the milling current value calculation unit 273 subtracts the no-load current value stored in the no-load current value storage unit 272 from the current working current value obtained by the current current value acquisition unit 271 at different times during the milling process, thereby obtaining the current milling current value at different times.

[0086] Comparison and determination unit 28 is configured to compare and determine the current milling current value with the current set current value, thereby determining whether the current milling current value is greater than, less than, or equal to the current set current value. The determination criterion for "equal" may be approximately equal, for example, if the current milling current value is within ±5% of the current set current value.

[0087] The discharge control unit 29 is used to control the opening of the discharge mechanism 5, thereby varying the discharge flow rate. Specifically, the discharge control unit 29 controls the operation of the driver 57, causing the driver 57 to rotate the turntable 55 via the coupling 56 and the push rod 58. This causes the shifting member 54 to move and change the angle between the rotating plate 52 and the outlet 51, thereby changing the opening and, consequently, the discharge flow rate of each milling chamber 15. In this embodiment, the control actions of the discharge control unit 29 include those at the end of initial milling and those during the milling process.

[0088] Among them, the control action at the end of initial grinding is: after the initial grinding is completed, the discharge control unit 29 controls the initial opening degree of the discharge mechanism 5 after the initial grinding is completed to the opening degree corresponding to the current setting value obtained by the retrieval acquisition unit 26. Under normal circumstances, once the opening degree is reached, the corresponding grinding current will also reach the corresponding grinding current (for example, the current value set by the operator or the standard current value obtained by the retrieval acquisition unit 26), so that the grinding device 10 can work in the best state after the initial grinding is completed.

[0089] The control action during the grinding process is: when the comparison and judgment part 27 judges that the current grinding current value is less than the standard current value, the discharging control part 29 controls the discharging mechanism 5 to reduce the opening degree; when the comparison and judgment part 27 judges that the current grinding current value is greater than the standard current value, the discharging control part 29 controls the discharging mechanism 5 to increase the opening degree.

[0090] The operation switch 30 is used for the operator to press to start the milling process. For example, after the operator has input the current value through the current setting screen or selected the milling variety through the milling variety selection screen, and the grain has been input into the hopper 2 (for example, input into the hopper 2 through other equipment such as a grain elevator), the operator can operate the operation switch 30 to start the equipment. The operation switch 30 can be a physical button switch or a virtual display switch provided in the input display unit 21; when the operator presses the physical button switch or clicks the virtual display switch, a corresponding operation start signal is generated. Similarly, during the milling operation, when the operator presses the physical button switch or clicks the virtual display switch, a corresponding operation stop signal is generated.

[0091] The general control unit 31 is used to coordinate and control the operation of the various components of the control device 20, and to control the operation of the main roller drive mechanism 3 and the feed valve. It can be an industrial computer or a control chip installed with a predetermined control program. In addition, in this embodiment, an infrared sensor is also provided at the feed valve to detect whether there is still grain in the hopper 2. When grain is sensed, it indicates that there is still grain in the hopper 2 and it is still flowing through the feed valve into the grinding chambers 15. When no grain is sensed, it indicates that there is no grain in the hopper 2, and the grinding process can be terminated.

[0092] The working process of the intelligent grinding device 100 of this embodiment is explained below with reference to the accompanying drawings.

[0093] Figure 9 This is a flow chart of the operation of the intelligent grinding equipment according to the first embodiment of the present invention. Figure 9 As shown, when a batch of grains needs to be milled, the working process of the intelligent milling equipment 100 of this embodiment is as follows.

[0094] In step S1, the input display unit 21 displays an operation selection screen to allow the operator to select current setting operation or grinding variety selection operation. When the operator selects current setting operation, step S2 is entered. When the operator selects grinding variety selection operation, step S3 is entered.

[0095] In step S2 , the input display unit 21 displays a current setting operation screen to allow the operator to input the grinding current to be set. After the operator completes the input, the process proceeds to step S4 .

[0096] In step S3, the input display unit 21 displays a milling type selection screen, allowing the operator to select the type of milling to be performed. After the operator selects the type of milling to be performed, the process proceeds to step S5.

[0097] In step S4 , the current setting unit 25 sets the current value input by the operator as the current setting current value, and then proceeds to step S7 .

[0098] In step S5 , the search and acquisition unit 26 retrieves the standard current value corresponding to the selected milling type from the standard current value storage unit 23 according to the selection result of the operator, and then proceeds to step S6 .

[0099] In step S6 , the current setting unit 25 sets the standard current value retrieved by the retrieval and acquisition unit 26 in step S5 as the current set current value, and then proceeds to step S7 .

[0100] In step S7 , the search and acquisition unit 26 searches and acquires the opening degree corresponding to the currently set current value from the opening current value storage unit 22 , and then proceeds to step S8 .

[0101] In step S8, the main control unit 31 determines whether an operation start signal is received. If received, the main control unit 31 controls the feed valve to open, allowing the grain to enter the various milling chambers 15 from the hopper 2, and then enters step S9.

[0102] In step S9, the main control unit 31 controls the main roller driving mechanism 3 to start working, so that the main roller driving mechanism 3 drives the main roller 12 to rotate and drives the sand belt 14 to move, thereby performing initial grinding on the grains in the whitening chamber 15, and then enters step S10.

[0103] In step S10, it is determined whether the predetermined initial grinding time (10 seconds in this embodiment) has been continuously reached. If the determination is yes, the process proceeds to step S11.

[0104] In step S11 , the discharging control unit 29 controls the discharging mechanism 5 to open the milling opening according to the opening degree retrieved by the retrieval acquisition unit 25 in step S7 , and then proceeds to step S12 .

[0105] In step S12 , the grinding current value acquiring unit 27 acquires the current grinding current value of the main roller driving mechanism 3 in real time, and then enters step S13 .

[0106] Step S13, the comparison and judgment unit 28 judges the size relationship between the current grinding current value and the current set current value. When it is judged that the current grinding current value is greater than the current set current value, it enters step S14. When it is judged that the current grinding current value is less than the current set current value, it enters step S15. When it is judged that the current grinding current value is equal to the current set current value, it enters step S16.

[0107] In step S14, the discharging control unit 29 controls the discharging mechanism 5 to increase the opening degree, and then returns to step S12.

[0108] In step S15, the discharging control unit 29 controls the discharging mechanism 5 to reduce the opening degree, and then returns to step S12.

[0109] In step S16, the main control unit 31 determines whether the operation should be stopped. That is, once the operation stop signal is received from the operation switch 30 or the infrared sensor at the feed valve cannot sense the grain, it determines that the operation should be stopped, and then enters step S17.

[0110] In step S17, the general control unit 31 controls the grinding device 20 to enter the stop operation stage, including: controlling the discharge mechanism 5 to close, controlling the main roller drive mechanism 3 to continue running for 5 seconds and then stop running (equivalent to fully grinding the grains in the final stage), and controlling the discharge mechanism 5 to adjust the opening to the maximum to allow all the grains in the whitening chamber 15 to flow out, and then enter the end state.

[0111] Example Function and Effect

[0112] According to the intelligent grinding equipment provided by this embodiment, since the opening current value storage unit stores different grinding currents and corresponding opening openings, when it is necessary to grind grains under a certain grinding current, the required grinding current can be set as the current setting current through the current setting unit, and the discharging mechanism can be directly controlled to the corresponding opening opening through the discharging control unit, thereby eliminating the process of repeatedly automatically adjusting the opening opening in order to achieve the required grinding current before reaching a balanced state, so that the grinding device can work under the required grinding current from the beginning and achieve an ideal working state.

[0113] In the embodiment, since the standard current value storage unit stores different grinding types and their corresponding standard current values, even if the operator is not clear about how to set the current value, the grinding type can be selected so that the retrieval unit retrieves the corresponding standard current value from the standard current storage unit, and the current value setting unit directly sets the retrieved standard current value as the current set current value.

[0114] In addition, after a period of use, as the belt grinding time increases, performance changes may occur. During grinding, there may be situations where the standard current value is not entered for the type of grinding. Therefore, the standard current value may not be suitable for the current grinding process. In this embodiment, since there is also a current value setting screen, the operator can manually adjust the grinding current value based on the recent actual operation of the equipment and then directly enter it. Therefore, the intelligent grinding equipment of this embodiment is not only suitable for scenarios where the set current value is automatically obtained, but also for scenarios where the operator directly sets the grinding current value as needed.

[0115] In the embodiment, since the grinding current value acquisition unit can obtain the actual grinding current value during the grinding process in real time, the comparison and judgment unit can judge the relationship between the grinding current value and the currently set current value, and the discharge control unit can make corresponding adjustments to the opening degree in the discharge mechanism according to the judgment result, the actual grinding current value can be stabilized at the currently set current value during the grinding process, so that the grains can be ground under ideal conditions throughout the entire process.

[0116] Furthermore, since the discharging mechanism adopts the form of a turntable and a toggle member, one turntable can synchronously drive multiple toggle members, so that the grinding openings of each grinding chamber can be adjusted synchronously, which can prevent inconsistent adjustments and uneven quality between the grinding chambers.

[0117] <Variation 1>

[0118] This first variation is a variation of the first embodiment.

[0119] The intelligent milling device 100 of this modified example has the same structure as the intelligent milling device 100 of the first embodiment, except that the opening current value storage unit 22 stores the milling current value and the corresponding milling type in addition to the milling current value. For example, during the test of milling brown rice, when the milling current value is 5V, the corresponding milling current is 60%. The current value "5V" is stored in correspondence with the opening degree "60%" and the milling type "brown rice". For another example, during the test of milling polished rice, when the milling current value is 5V, the corresponding milling current is 55%. The current value "5V" is stored in correspondence with the opening degree "55%" and the milling type "polished polished rice".

[0120] Accordingly, when the search and acquisition unit 25 searches and acquires the opening corresponding to the currently set current value, it also needs to search and acquire the opening based on the current milling type, that is, it searches for the opening whose milling current value is consistent with the currently set current value and the milling type is consistent with the current milling type. Specifically, when the operator selects a milling type through the milling type selection screen, the current milling type is the selected milling type; when the operator inputs a set current value through the current setting screen, the input display unit can display a milling type selection area in the current setting screen to allow the operator to select the current milling type.

[0121] <Example 2>

[0122] In this embodiment, the same structures as those in the first embodiment are given the same numbers and the same descriptions are omitted.

[0123] Figure 10This is a structural block diagram of the intelligent grinding equipment according to the second embodiment of the present invention.

[0124] like Figure 10 As shown, the main difference between the intelligent grinding equipment 300 of this embodiment and the first embodiment is that the control device 20 further includes a current recording and storage unit 32 and an opening and closing value updating unit 33.

[0125] The current recording storage unit 32 is used to store and record the actual grinding current and the corresponding opening degree during each grinding process. Specifically, whenever the comparison and judgment unit 28 determines that the current grinding current value is not equal to the current set current value and the discharge control unit 29 makes corresponding adjustments, when the comparison and judgment unit 28 again determines that the current grinding current value is equal to the current set current value, it means that the opening degree after this adjustment can reach the corresponding grinding current value. At this time, the main control unit 31 controls the current recording storage unit 32 to store the adjusted opening degree and the actual grinding current value in correspondence.

[0126] The opening and closing value updating unit 33 is used to refine the storage content of the opening current value storage unit 22 according to the records of the current recording storage unit 32. Specifically, as the overall use time of the equipment increases, the corresponding relationship between the opening opening and the grinding current value it can cause will have slight changes. The opening and closing value updating unit 33 updates the opening opening values ​​corresponding to these grinding current values ​​in the opening current value storage unit 22 to the average value of the most recent adjusted opening openings based on the adjusted opening openings and grinding current values ​​in the most recent grinding processes stored in the current recording storage unit 32. The updating process of the opening and closing value updating unit 33 can be after each grinding is completed, or before each grinding begins, so that the discharging control unit 29 can use the updated opening opening to control the discharging mechanism 5 during the next grinding or the current grinding.

[0127] In this embodiment, since the current recording storage unit 32 is used to store and record the actual grinding current and the corresponding opening opening during each grinding process, and the opening and closing value updating unit 33 is used to update the opening opening value corresponding to the grinding current value, even if the hardware status of the equipment changes, it can be ensured that the initial opening opening of the discharging mechanism 5 after the initial grinding can produce the required grinding current value, thereby achieving the ideal grinding effect.

[0128] <Variation 2>

[0129] This second variation is a variation of the second embodiment.

[0130] The intelligent milling device 300 of this variation is identical in structure to the intelligent milling device 300 of Example 2. The difference lies in that the opening current value storage unit 22 stores not only the opening degree and the corresponding milling current value, but also the corresponding milling type. In other words, the storage data structure of the opening current value storage unit 22 in this variation is the same as in Variation 1. Furthermore, the process by which the retrieval unit 25 acquires the opening degree value is also the same as in Variation 1 and will not be further described here.

[0131] The above embodiments are used to illustrate the protection scope of the present invention, but the protection scope of the present invention is not limited to the scope described in the above embodiments.

[0132] For example, in both Examples 1 and 2, a turntable is used in conjunction with a toggle member, with the driver driving the turntable to rotate, thereby driving the toggle member to move, thereby changing the angle of the rotating plate and, in turn, the milling opening angle to adjust the discharge flow rate. In the present invention, the milling chamber discharge assembly can also be simplified to a single electrically controlled valve (i.e., the angle of the rotating plate is directly changed by combining a stepper motor with a transmission assembly). This eliminates the discharge adjustment assembly, allowing the processing control unit to directly send corresponding electrical signals to each electrically controlled valve simultaneously, thereby changing the angle of the electrically controlled valve, i.e., changing the opening degree. Furthermore, in this structure, the opening degree can also be expressed as a percentage of the opening angle of the electrically controlled valve in different opening states relative to the fully open state.

[0133] In the first and second embodiments, the comparison judgment unit judges the current grinding current value by approximately equal to, while the standard current value is a fixed value. In the present invention, the standard current value can also be directly stored in the form of a numerical range, and the range is not limited to ±5%, and can be a larger or smaller range.

[0134] Alternatively, as an alternative to the updating method of the aperture value updating unit in the second embodiment, the aperture value updating unit may use the average of the aperture values ​​corresponding to the same grinding current value during the most recent grinding processes as the aperture value corresponding to the grinding current value. Alternatively, as an alternative to the current recording and storage unit recording and storing the current grinding current value and aperture value after each adjustment in the second embodiment, the current recording and storage unit may record the current grinding current value and aperture value at intervals during the grinding process.

Claims

1. An intelligent milling device for milling grains, comprising: a grinding device for grinding the grains; and a control device for controlling the grinding process, The grinding device comprises a main drum, a main drum driving mechanism for driving the main drum to rotate, an abrasive belt driven by the main drum, a plurality of whitening chambers for accommodating the grains and cooperating with the abrasive belt to achieve grinding, and a discharge mechanism for discharging the grains after being ground in the whitening chambers. It is characterized in that The main roller driving mechanism is a motor. The discharging mechanism has a grinding chamber discharging component for discharging the material in the grinding chamber, and the grinding chamber discharging component has an opening corresponding to different discharge flow rates. The control device comprises: an opening current value storage unit storing different grinding current values ​​when the main roller driving mechanism drives the main roller to perform grinding processing and the opening opening corresponding to each grinding current value; a current setting unit for setting a current value used in a grinding process as a current setting current value; a search and acquisition unit, configured to search the opening current value storage unit according to the current set current value, and acquire the opening corresponding to the current set current value; a discharge control unit for controlling the discharge mechanism by using the opening as an initial opening for grinding; a standard current value storage unit storing different grain varieties and standard milling current values ​​corresponding to the respective grain varieties; a screen storage unit storing a milling variety selection screen; and An input display unit displays the milling variety selection screen and displays the grain varieties in the standard current value storage unit on the milling variety selection screen so that the operator can select one as the current milling variety. The current setting unit obtains the standard milling current value corresponding to the current milling type from the standard current value storage unit according to the operator's selection, and sets the obtained standard milling current value as the current setting current value.

2. The intelligent grinding equipment according to claim 1, characterized in that: in, The control device further includes a grinding current value acquisition unit for acquiring the current grinding current value in real time according to the working current value of the main roller driving mechanism during the grinding process. During the grinding process, the discharge control unit also controls the opening of the discharge mechanism in real time according to the magnitude relationship between the current grinding current value and the current set current value.

3. The intelligent grinding equipment according to claim 2, characterized in that: in, The control device also includes a current recording and storage unit and an opening and closing value updating unit. The current recording and storage unit is used to record the current grinding current value and the corresponding opening degree during each grinding process; The opening / closing value updating unit is configured to update the storage content of the opening current value storage unit according to the record in the current record storage unit.

4. The intelligent grinding equipment according to claim 2, characterized in that: in, The milling current value acquisition unit includes a no-load current value storage unit, a current current value acquisition unit, and a milling current value calculation unit. The current value acquisition unit acquires the current of the main roller driving mechanism when it is started at no-load as the no-load current value. The no-load current value storage unit stores the no-load current value. The current current value acquisition unit acquires the current operating current value of the main roller driving mechanism, The milling current value calculation unit subtracts the current working current value from the no-load current value to obtain the current milling current value.

5. The intelligent grinding equipment according to claim 1, characterized in that: in, The milling chamber discharge assembly comprises an outlet portion arranged at the lower end of the milling chamber, a rotating plate rotatably mounted in the outlet portion, and a toggle member capable of driving the rotating plate to rotate. The opening angle is the angle between the rotating plate and the outlet.

6. The intelligent grinding equipment according to claim 5, characterized in that: in, The discharging mechanism further includes a discharging adjustment assembly having a turntable capable of pushing the toggle member to rotate so as to change the angle of the rotating plate and a driving member driving the turntable to rotate. The material discharging control unit controls the driving member to drive the turntable to rotate, thereby changing the opening between the rotating plate and the outlet portion.

7. The intelligent grinding equipment according to claim 6, characterized in that: in, The driving member is a motor, The discharge adjustment assembly also includes a coupling shaft and a push rod connecting the driving member and the turntable, and a proximity switch 1 and a proximity switch 2 arranged near the turntable. The positions of the first proximity switch and the second proximity switch correspond to the position where the rotating plate completely fits the outlet and the position where the rotating plate is farthest from the outlet, respectively. The opening degree is obtained according to the electrical signals of the first proximity switch and the second proximity switch.

8. The intelligent grinding equipment according to claim 1, characterized in that: in, The discharging mechanism includes a plurality of discharging valves arranged at the lower end of the whitening chamber, and the discharging valves are electrically controlled valves. The opening degree is the opening angle of the electric control valve.

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