A method for automatically visually selecting cubic boron nitride

Abstract

The present invention provides an automatic visual selection method for cubic boron nitride. The automatic visual selection method for cubic boron nitride comprises: a shaking table and a mounting frame, wherein the mounting frame is arranged on an outer wall of one side of the shaking table; a moving mechanism is arranged on the mounting frame, wherein the moving mechanism comprises a stepping motor, a linear slide, a plastic fixing box and a permanent magnet, wherein the stepping motor is fixedly mounted on the mounting frame, wherein the linear slide comprises a threaded rod, a slider and a connecting block, wherein the threaded rod is rotatably mounted on the mounting frame. The automatic visual selection method for cubic boron nitride provided by the present invention is environmentally friendly and energy-saving, and is simple to operate, time-saving and low in cost. The impurity iron powder in the slurry can be adsorbed and picked out by a permanent magnet, thereby completing the sorting process of the iron powder impurities in the slurry, thereby avoiding the influence on the subsequent processing.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic visual selection of cubic boron nitride, and in particular relates to an automatic visual selection method of cubic boron nitride. Background Art

[0002] Cubic boron nitride (CBN) is a synthetic superhard material widely used in the field of ferrous metal and alloy material processing industry. CBN synthetic blocks contain impurities such as hexagonal boron nitride, pyrophyllite, graphite, magnesium, and iron, and need to be purified through multiple processes. The CBN synthetic blocks synthesized under high temperature and high pressure conditions need to be stirred and crushed by a stirrer before entering a shaking table. According to their density and particle size, they move in different directions on the surface of the shaking table, and start from the ore trough and fan out along the diagonal line, and are discharged along the edge of the bed in turn. Different components in the liquid form constantly changing light and dark boundaries on the shaking table. In the related technology, a method for purifying cubic boron nitride is disclosed, which belongs to the field of superhard material purification technology. The purification method adopts a microwave tunnel furnace to oxidize the cBN concentrate obtained by shaking table sorting by passing O2 or air or a mixed gas of O2 and air, and then passes H2 for reduction treatment to obtain pure cBN crystals, thereby avoiding the use of strong acids and strong bases in existing purification methods, reducing the pollution caused to the environment by the purification process, and reducing the purification cost.

[0003] However, there are still some shortcomings in the above structure, because when the slurry is processed on the shaking table, impurities will be separated, and if these impurities are not processed in time, they will flow to the next process, which will affect the subsequent processing and waste time.

[0004] Therefore, it is necessary to provide a new automatic visual selection method for cubic boron nitride to solve the above technical problems. Summary of the invention

[0005] The technical problem solved by the present invention is to provide an environmentally friendly, energy-saving, simple to operate, time-saving and low-cost cubic boron nitride automatic visual sorting method that can adsorb and pick out impure iron powder in the slurry through a permanent magnet, thereby completing the sorting process of the iron powder impurities in the slurry, thereby avoiding affecting the subsequent processing.

[0006] In order to solve the above technical problems, the present invention provides a method for automatic visual selection of cubic boron nitride, comprising: a shaking table and a mounting frame, wherein the mounting frame is arranged on an outer wall of one side of the shaking table;

[0007] A moving mechanism is provided on the mounting frame, and the moving mechanism includes a stepping motor, a linear slide, a plastic fixed box and a permanent magnet. The stepping motor is fixedly mounted on the mounting frame, and the linear slide includes a threaded rod, a slider and a connecting block. The threaded rod is rotatably mounted on the mounting frame, and one end of the threaded rod away from the mounting frame is fixedly connected to the output shaft of the stepping motor, and the slider is threadedly mounted on the threaded rod.

[0008] As a further solution of the present invention, the connecting block is fixedly mounted on the slider, the plastic fixing box is fixedly mounted on the connecting block, the permanent magnet is arranged on the plastic fixing box, and the bottom end of the permanent magnet extends below the bottom of the plastic fixing box.

[0009] As a further solution of the present invention, an identification component is provided on the mounting frame, and the identification component includes a camera bracket, a mounting block and an industrial camera. The camera bracket is arranged on the mounting frame, the mounting block is fixedly installed on the camera bracket, the industrial camera is arranged on the mounting block, and the industrial camera is located behind the plastic fixed box.

[0010] As a further solution of the present invention, an electric control box is provided on one side of the shaking table, and a PLC controller, a driver, an industrial computer and a DC power supply box are installed in the electric control box.

[0011] As a further solution of the present invention, the driver is electrically connected to the stepper motor, the PLC controller is electrically connected to the driver, the industrial computer is connected to the industrial camera via a USB data cable, the industrial computer is connected to the PLC controller via a network cable, and a limit rod is fixedly installed on the mounting frame, and the limit rod is slidably connected to the slider.

[0012] As a further solution of the present invention, the automatic visual selection method comprises the following steps:

[0013] S1. The liquid is discharged onto a shaking table so that it can be shaken on the surface of the shaking table. The hexagonal boron nitride impurities, cubic boron nitride concentrate, and iron powder in the liquid move in a fan-shaped manner on the surface of the shaking table according to their different masses, and are discharged along the edge of the bed in sequence. Different components in the liquid form a constantly changing light and dark boundary on the shaking table;

[0014] S2. The industrial camera above the shaking table is used to collect the image boundary line of the material and liquid on the shaking table surface, and the collected signal is transmitted to the industrial computer through the USB data cable. The industrial computer sends the analysis and processing results of the video image collected by the camera to the lower computer PLC programmable controller, and the PLC control program performs calculation analysis and positioning on it, and converts the calculation results into pulse control signals to the driver, and then controls the stepper motor to operate through the driver;

[0015] S3. The output shaft of the stepper motor can be used to drive the threaded rod to rotate, so that under the operation of the thread and the limit rod, the slider can be driven to move left and right, and then the connecting block can be driven to move through the slider, and finally the plastic fixing box can be driven to move through the connecting block, so that the permanent magnet can be driven to move through the plastic fixing box, and most of the lower end of the permanent magnet is exposed outside the plastic fixing box, and the permanent magnet is 50mm above the surface of the shaking table. Therefore, the magnetization principle of the permanent magnet is used to generate an attractive force between the iron powder and the magnet, so that the magnet, driven by the connecting block and the slider, follows the constantly moving left and right feed-liquid dividing line to track and move in real time, and the iron powder in the feed liquid flowing under the permanent magnet is sucked onto the magnet, completing the separation process of iron powder impurities in the feed liquid.

[0016] Compared with the related art, the automatic visual selection method of cubic boron nitride provided by the present invention has the following beneficial effects:

[0017] 1. The present invention is environmentally friendly, energy-saving, simple to operate, time-saving and low-cost. The impurity iron powder in the slurry can be adsorbed and picked out by a permanent magnet, thereby completing the sorting process of the iron powder impurities in the slurry, thereby avoiding affecting the subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0021] Figure 3 It is a principle block diagram of the present invention.

[0022] In the figure: 1. shaking table; 2. mounting frame; 3. stepping motor; 40. linear slide; 4. threaded rod; 5. slider; 6. connecting block; 7. plastic fixing box; 8. permanent magnet; 9. camera bracket; 10. mounting block; 11. industrial camera; 12. electric control box. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A; Figure 3The automatic visual selection method of cubic boron nitride comprises: a shaking table 1 and a mounting frame 2, wherein the mounting frame 2 is arranged on an outer wall of one side of the shaking table 1;

[0024] A moving mechanism is provided on the mounting frame 2, and the moving mechanism includes a stepping motor 3, a linear slide 40, a plastic fixing box 7 and a permanent magnet 8. The stepping motor 3 is fixedly mounted on the mounting frame 2, and the linear slide 40 includes a threaded rod 4, a slider 5 and a connecting block 6. The threaded rod 4 is rotatably mounted on the mounting frame 2, and one end of the threaded rod 4 away from the mounting frame 2 is fixedly connected to the output shaft of the stepping motor 3, and the slider 5 is threadedly mounted on the threaded rod 4.

[0025] The connecting block 6 is fixedly mounted on the slider 5 , the plastic fixing box 7 is fixedly mounted on the connecting block 6 , the permanent magnet 8 is arranged on the plastic fixing box 7 , and the bottom end of the permanent magnet 8 extends to below the bottom of the plastic fixing box 7 .

[0026] The mounting frame 2 is provided with an identification component, which includes a camera bracket 9, a mounting block 10 and an industrial camera 11. The camera bracket 9 is arranged on the mounting frame 2, the mounting block 10 is fixedly installed on the camera bracket 9, the industrial camera 11 is arranged on the mounting block 10, and the industrial camera 11 is located behind the plastic fixed box 7.

[0027] An electric control box 12 is provided on one side of the shaking table 1, and a PLC controller, a driver, an industrial computer and a DC power supply box are installed in the electric control box 12.

[0028] The driver is electrically connected to the stepper motor 3, the PLC controller is electrically connected to the driver, the industrial computer is connected to the industrial camera 11 via a USB data cable, the industrial computer is connected to the PLC controller via a network cable, a limit rod is fixedly installed on the mounting frame 2, and the limit rod is slidably connected to the slider 5.

[0029] The automatic visual selection method comprises the following steps:

[0030] The industrial camera 11 is connected to an industrial computer via a USB interface for data communication, and the industrial computer is connected to the PLC controller for network communication. The video and image signals of the liquid surface on the shaking table 1 collected by the camera are analyzed and compared through the visual analysis software in the industrial computer, and the analysis results are transmitted to the PLC controller through the network communication line. The PLC control program sends a pulse signal to the driver according to the control requirements, and the driver drives the stepper motor 3 to rotate and drive the threaded rod 4 to rotate, so that under the operation of the thread and the limit rod, it can drive the slider 5 to move left and right, and then the slider 5 is used to bring The movable connecting block 6 is moved, and finally the plastic fixing box 7 is driven to move by the connecting block 6, so that the permanent magnet 8 can be driven to move by the plastic fixing box 7, and most of the lower end of the permanent magnet 8 is exposed outside the plastic fixing box 7, and the permanent magnet 8 is 50mm above the surface of the shaking table 1. Therefore, the magnetization principle of the permanent magnet is used to generate attraction between the iron powder and the magnet, so that the magnet, driven by the connecting block 6 and the slider 5, follows the material-liquid dividing line that is constantly moving left and right, and the iron powder in the material liquid flowing under the permanent magnet 8 is sucked onto the magnet, completing the separation process of iron powder impurities in the material liquid;

[0031] S1. The liquid is discharged on the shaking table 1 so that it can be shaken through the surface of the shaking table 1. The hexagonal boron nitride impurities, cubic boron nitride concentrate, and iron powder in the liquid move in a fan-shaped manner on the surface of the shaking table according to their different masses, and are discharged along the edge of the bed in sequence. The different components in the liquid form a constantly changing light and dark boundary on the shaking table 1;

[0032] S2. The industrial camera 11 above the shaking table 1 is used to collect the boundary line of the material-liquid image on the surface of the shaking table 1, and the collected signal is transmitted to the industrial computer through the USB data cable. The industrial computer sends the video image analysis and processing results collected by the camera to the lower computer PLC programmable controller, and the PLC control program performs calculation analysis and positioning on it, and converts the calculation results into pulse control signals to the driver, and then controls the stepper motor 3 to operate through the driver;

[0033] S3. The output shaft of the stepper motor 3 can be used to drive the threaded rod 4 to rotate, so that under the operation of the thread and the limit rod, the slider 5 can be driven to move left and right, and then the slider 5 can be used to drive the connecting block 6 to move, and finally the connecting block 6 can be used to drive the plastic fixing box 7 to move, so that the permanent magnet 8 can be driven to move through the plastic fixing box 7, and most of the lower end of the permanent magnet 8 is exposed outside the plastic fixing box 7, and the permanent magnet 8 is 50 mm above the surface of the shaking table 1. Therefore, the magnetization principle of the permanent magnet is used to generate an attractive force between the iron powder and the magnet, so that the magnet, driven by the connecting block 6 and the slider 5, follows the material-liquid dividing line that is constantly moving left and right to track and move in real time, and the iron powder in the material liquid flowing under the permanent magnet 8 is sucked onto the magnet, completing the separation process of iron powder impurities in the material liquid.

[0034] It should be noted that the device structure and the drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above invention, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field.

[0035] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments or applied directly or indirectly without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A method for automatic visual selection of cubic boron nitride, characterized in that: include: The method for automatic visual selection using an automatic visual selection device comprises the following steps: S1. The liquid is discharged onto a shaking table so that it can be shaken on the surface of the shaking table. The hexagonal boron nitride impurities, cubic boron nitride concentrate, and iron powder in the liquid move in a fan-shaped manner on the surface of the shaking table according to their different masses, and are discharged along the edge of the bed in sequence. Different components in the liquid form a constantly changing light and dark boundary on the shaking table; S2. The industrial camera above the shaking table is used to collect the image boundary line of the material and liquid on the shaking table surface, and the collected signal is transmitted to the industrial computer through the USB data cable. The industrial computer sends the analysis and processing results of the video image collected by the camera to the lower computer PLC programmable controller, and the PLC control program performs calculation analysis and positioning on it, and converts the calculation results into pulse control signals to the driver, and then controls the stepper motor to operate through the driver; S3. The output shaft of the stepper motor can be used to drive the threaded rod to rotate, so that under the operation of the thread and the limit rod, the slider can be driven to move left and right, and then the slider drives the connecting block to move, and finally the connecting block drives the plastic fixing box to move, so that the permanent magnet can be driven to move through the plastic fixing box, and most of the lower end of the permanent magnet is exposed outside the plastic fixing box; S4. The permanent magnet is 50mm above the surface of the shaking table. Therefore, the magnetization principle of the permanent magnet is used to generate attraction between the iron powder and the magnet. Driven by the connecting block and the slider, the magnet follows the material-liquid dividing line that is constantly moving left and right, and the iron powder in the material liquid flowing under the permanent magnet is sucked onto the magnet, completing the separation process of iron powder impurities in the material liquid. The automatic visual selection device includes a shaking table and a mounting frame, and the mounting frame is arranged on an outer wall of one side of the shaking table; The mounting frame is provided with a moving mechanism, which includes a stepping motor, a linear slide, a plastic fixing box and a permanent magnet. The stepping motor is fixedly mounted on the mounting frame, and the linear slide includes a threaded rod, a slider and a connecting block. The threaded rod is rotatably mounted on the mounting frame, and one end of the threaded rod away from the mounting frame is fixedly connected to the output shaft of the stepping motor, and the slider is threadedly mounted on the threaded rod; The connecting block is fixedly mounted on the sliding block, the plastic fixing box is fixedly mounted on the connecting block, the permanent magnet is arranged on the plastic fixing box, and the bottom end of the permanent magnet extends to below the bottom of the plastic fixing box; The mounting frame is provided with an identification component, which includes a camera bracket, a mounting block and an industrial camera. The camera bracket is arranged on the mounting frame, the mounting block is fixedly mounted on the camera bracket, the industrial camera is arranged on the mounting block, and the industrial camera is located behind the plastic fixing box; An electric control box is provided on one side of the shaking table, and a PLC controller, a driver, an industrial computer and a DC power supply box are installed in the electric control box; The driver is electrically connected to the stepper motor, the PLC controller is electrically connected to the driver, the industrial computer is connected to the industrial camera via a USB data cable, the industrial computer is connected to the PLC controller via a network cable, a limit rod is fixedly installed on the mounting frame, and the limit rod is slidably connected to the slider.

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