Color sorter vibration driving system based on feedback control

Abstract

The utility model relates to the technical field of color sorters, and discloses a color sorter vibration driving system based on feedback control, which comprises an ARM chip, an FPGA chip, a 485 transceiver chip and a vibration sensor which are sequentially connected, the FPGA chip is connected with a BUFFER driving chip, the BUFFER driving chip is connected with an optocoupler isolation chip, the optocoupler isolation chip is connected with a 10pin connecting chip, and the 10pin connecting chip is connected with the 485 transceiver chip. And the 10pin connection chip is connected with a plurality of groups of driving vibration units. According to the utility model, the multi-path vibrators can be rapidly and accurately controlled at the same time, the vibration quantity fed back by the vibration sensor can be received in real time, the vibration stability can be adjusted in real time, the yield can be maintained, the material vibration uniformity can be improved, the blanking requirements under different working conditions can be met through flexible configuration, and the material identification accuracy of the color sorter industry can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a color sorter technical field especially, it relates to a color sorter vibration drive system based on feedback control. BACKGROUND

[0002] In the color sorter material selection process, it is essential to ensure the uniformity of material falling, the color sorter industry currently uses electromagnetic vibrator to realize this function, uses vibration drive control. The main chip of the traditional color sorter adopts vibration drive board is single-chip microcomputer, FPGA or PLC, the control accuracy and flexibility are not high. The traditional color sorter control vibrator vibration amount mode is often manual control, it is difficult to maintain ideal output, artificial watch also can greatly increase the cost, for this, a color sorter vibration drive system based on feedback control is provided. UTILITY MODEL CONTENT

[0003] To solve the technical problems existing in the prior art, the utility model provides a color sorter vibration drive system based on feedback control.

[0004] The utility model adopts the following technical scheme and realizes: a color sorter vibration drive system based on feedback control, including ARM chip, FPGA chip, 485 transceiver chip and vibration sensor that connect gradually, BUFFER drive chip is connected to the FPGA chip, BUFFER drive chip is connected with photoelectric coupler isolation chip, photoelectric coupler isolation chip is connected with 10pin connection chip, and 10pin connection chip is connected with multiple groups of drive vibration unit;

[0005] Drive vibration unit includes half bridge drive chip, MOS tube and vibrator that connect gradually, and half bridge drive chip is connected with 10pin connection chip.

[0006] FPGA chip and ARM chip are connected with storage chip.

[0007] As the further improvement of the above scheme, the model of vibration sensor is XC-3810P, and the vibration sensor is used for receiving the vibration signal of the vibrator.

[0008] As the further improvement of the above scheme, the 485 transceiver chip realizes the function of single-ended to differential and differential to single-ended, and the 485 transceiver chip is used for signal transmission and conversion between the vibration sensor and the FPGA chip, and the model of the 485 transceiver chip is MAX3488XX.

[0009] As the further improvement of the above scheme, the model of the FPGA chip is Xilinx xc7z020clg484-1, and the FPGA chip generates the PWM signal with certain frequency and duty ratio according to the vibration control instruction received from the FPGA chip.

[0010] As a further improvement of the above-mentioned scheme, the model of the ARM chip is Cortex-M7, and the ARM chip is used to send vibration control instructions to the FPGA chip.

[0011] As a further improvement of the above-mentioned scheme, the model of the BUFFER driving chip is SN74AC, the model of the optocoupler isolation chip is HCPL2530, the BUFFER driving chip and the optocoupler isolation chip are used to connect the FPGA chip and the 10pin connection chip, and play the roles of signal enhancement and isolation.

[0012] As a further improvement of the above-mentioned scheme, the model of the 10pin connection chip is EG4X20BG25618, and the 10pin connection chip is used to connect the optocoupler isolation chip and the half-bridge driving chip.

[0013] As a further improvement of the above-mentioned scheme, the model of the half-bridge driving chip is IR2110, the half-bridge driving chip is used, the model of the MOS tube is IRFP360, and the MOS tube is used to control the vibration of the vibrator.

[0014] As a further improvement of the above-mentioned scheme, the model of the storage chip is Micron M25P16.

[0015] Compared with the prior art, the beneficial effects of the present application are that:

[0016] The present application can meet the requirements of simultaneously and quickly and accurately controlling multiple vibrators, receiving the vibration amount fed back by the vibration sensor in real time, adjusting the stability of vibration in real time, maintaining the yield, improving the uniformity of material vibration, and also being flexibly configured to meet the discharging requirements under different working conditions, and improving the accuracy of material identification in the color sorter industry. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structural schematic diagram of a color sorter vibration driving system based on feedback control is provided. DETAILED DESCRIPTION

[0018] In the following, the present application will be further described in combination with the drawings and specific embodiments, and it should be noted that the embodiments described below or the technical features thereof can be combined in any manner to form new embodiments without conflict.

[0019] Embodiment 1:

[0020] Please combine Figure 1The embodiment of the application discloses a vibration driving system of a color selector based on feedback control, which comprises an ARM chip, an FPGA chip, a 485 transceiver chip and a vibration sensor connected in sequence, the FPGA chip is connected with a BUFFER driving chip, the BUFFER driving chip is connected with an opto-isolator chip, the opto-isolator chip is connected with a 10pin connecting chip, and the 10pin connecting chip is connected with a plurality of driving vibration units.

[0021] The driving vibration unit comprises a half-bridge driving chip, a MOS tube and a vibrator connected in sequence, and the half-bridge driving chip is connected with the 10pin connecting chip.

[0022] The FPGA chip and the ARM chip are connected with a storage chip.

[0023] The vibration sensor is XC-3810P, and the vibration sensor is used for receiving the vibration signal of the vibrator.

[0024] The 485 transceiver chip realizes the functions of single-end to differential and differential to single-end, is used for signal transmission and conversion between the vibration sensor and the FPGA chip, can receive the vibration amount fed back by the vibration sensor in real time, can adjust the stability of vibration in real time, and can maintain the yield, and the 485 transceiver chip is MAX3488XX.

[0025] The FPGA chip is Xilinx xc7z020clg484-1, and the FPGA chip generates a PWM signal with a certain frequency and duty cycle according to the vibration control instruction received from the FPGA chip.

[0026] The ARM chip is Cortex-M7, and the ARM chip is used for sending a vibration control instruction to the FPGA chip.

[0027] The BUFFER driving chip is SN74AC, the opto-isolator chip is HCPL2530, the BUFFER driving chip and the opto-isolator chip are used for connecting the FPGA chip and the 10pin connecting chip, and play the roles of signal enhancement and isolation.

[0028] The 10pin connecting chip is EG4X20BG25618, has a plurality of I / O ports and high working frequency, can meet the requirements of simultaneously and quickly and accurately controlling a plurality of vibrators, and is used for connecting the opto-isolator chip and the half-bridge driving chip.

[0029] The half-bridge driving chip is IR2110, the MOS tube is IRFP360, and the MOS tube is used for controlling the vibrator.

[0030] The storage chip is Micron M25P16.

[0031] Working principle:

[0032] Firstly, the ARM chip sends data to the FPGA chip through the SPI protocol, the FPGA chip reads the data in the storage chip, and starts to generate a PWM signal with a certain frequency and duty cycle;

[0033] After that, the PWM signal is transmitted to the optocoupler isolation chip through the BUFFER driving chip to enhance the signal, and then the control signal is transmitted to the half-bridge driving chip through the 10pin connection chip, finally the MOS tube is controlled to realize the on-off of the vibrator coil, so that the vibrator vibrates;

[0034] When the vibrator vibrates, the vibration sensor transmits the vibration amount back to the FPGA chip through the 485 transceiver chip, and the FPGA chip analyzes the data and transmits it back to the ARM chip through the SPI protocol;

[0035] After receiving the vibration amount data, the ARM chip uses the PID algorithm to adjust the vibration amount data and continues to send it to the FPGA chip, and adjusts the frequency and duty cycle of the PWM signal in real time to adjust the vibrator, so that the vibrator is stabilized at the set vibration amount.

[0036] The utility model can meet the requirements of simultaneously and quickly and accurately controlling multiple vibrators, receiving the vibration amount feedback by the vibration sensor in real time, adjusting the stability of vibration in real time, maintaining the yield, improving the uniformity of material vibration, and can also be flexibly configured to meet the discharging requirements under different working conditions, and improve the accuracy of material identification in the color selection machine industry.

[0037] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the scope of protection of the utility model, and any non-substantial changes and replacements made by the person skilled in the art on the basis of the utility model belong to the scope of protection required by the utility model.

Claims

1. A feedback control based color sorter vibration drive system, characterized in that, The vibration sensor is connected with the ARM chip, the FPGA chip, the 485 transceiver chip and the vibration sensor in sequence, the BUFFER driving chip is connected with the FPGA chip, the optocoupler isolation chip is connected with the BUFFER driving chip, the 10pin connection chip is connected with the optocoupler isolation chip, and the driving vibration unit is connected with a plurality of groups of the 10pin connection chip. The driving vibration unit comprises a half-bridge driving chip, a MOS tube and a vibrator connected in sequence, and the half-bridge driving chip is connected with the 10pin connection chip. The FPGA chip and the ARM chip are connected with a storage chip.

2. The vibration drive system of color selector based on feedback control according to claim 1, characterized in that, The vibration sensor is of an XC-3810P type and is used for receiving the vibration signal of the vibrator.

3. The vibration drive system for a color sorter based on feedback control as described in claim 1, characterized in that, The 485 transceiver chip is used for signal transmission and conversion between the vibration sensor and the FPGA chip, and is of an MAX3488XX type.

4. The feedback control based color sorter vibration drive system as claimed in claim 1, wherein, The FPGA chip is of an Xilinx xc7z020clg484-1 type, and generates a PWM signal with a certain frequency and duty cycle according to the vibration control instruction received from the FPGA chip.

5. The feedback control based color sorter vibration drive system as claimed in claim 1, wherein, The ARM chip is of a Cortex-M7 type, and is used for sending the vibration control instruction to the FPGA chip.

6. The feedback control based color sorter vibration drive system as claimed in claim 1, wherein, The BUFFER driving chip is of an SN74AC type, the optocoupler isolation chip is of an HCPL2530 type, and the BUFFER driving chip and the optocoupler isolation chip are used for connecting the FPGA chip and the 10pin connection chip, and play a role of signal enhancement and isolation.

7. The vibration drive system of color selector based on feedback control according to claim 1, characterized in that, The 10pin connection chip is of an EG4X20BG25618 type, and is used for connecting the optocoupler isolation chip and the half-bridge driving chip.

8. The vibration drive system of color selector based on feedback control according to claim 1, characterized in that, The half-bridge driving chip is of an IR2110 type, the MOS tube is of an IRFP360 type, and the MOS tube is used for controlling the vibrator to vibrate.

9. The vibration drive system of color selector based on feedback control according to claim 1, characterized in that, The storage chip is of a Micron M25P16 type.

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