CN104166370B - A wireless remote control electrical automatic control system for a band arm saw - Google Patents

Abstract

The present invention saws wireless remote control automatic electrical control system for a kind of armed, and system includes touch screen human-computer interface, wirelessly transmits/receives module (communication, analog quantity, digital switch unit) two covering devices and PLC command and control centers, executing agency, double variable frequency drive control systems etc..Systemic-function includes：The function such as the armed saw function of motion, swing arm up/down oscillating function, armed saw walking function, equipment grease lubrication function and detection, alarm, protection.Related real-time, dynamic data, parameter and system failure prompt messages that operational order and receipt source are passed back in PLC control centres are sent to wireless remote control receiver and transmitter by the serial communication interfaces of RS 485 from touch screen human-computer interface first, it is used as operation, monitoring, secondly send dependent instruction from switch, analog signal to " wireless remote control receiving/transmitting device " and receive fault alarm feedback signal, the system and device can realize free and relaxed hundred meters " remote controls ", energy saving and interface are clear, be quick on the draw, rapid reliable.

Description

A wireless remote control electrical automatic control system for a band arm saw

technical field

The invention relates to a wireless remote control electrical automatic control system for a band arm saw, in particular to realizing the electrical automatic control system for a band arm saw through a PLC, a touch screen and a wireless remote control device.

Background technique

At present, it has not been used in China. Foreign "band arm saws" mainly use more conventional electrical components such as buttons, knobs, and texts to realize "wired" operation control. After analysis and processing, an execution command is issued to make the execution unit act—the frequency converter drives the motor to run. In this control system, conventional electrical components are used, the installation and wiring are complicated, and the number of core wires of the control cable from the console to the machine Many, it brings inconvenience to the installation. At the same time, these components have been working in the special environment of the mine for a long time, and they are prone to device aging, contact oxidation and poor contact. Insufficient functions and storage capacity make it impossible to obtain too much equipment information, which affects failure analysis, judgment, maintenance, etc.

The use of "band arm saw" for stone cutting has incomparable advantages over "chain arm saw". It has small size, light weight, high sawing efficiency, and is more durable and adaptable. The manufacturing process is relatively simple and the cost is lower. And many other advantages, so it has greater development potential.

The electronic control system with touch screen and wireless remote control has the advantages of convenient operation, less components, low failure rate, intuitive and clear interface, and sufficient information to improve the efficiency of equipment maintenance.

Contents of the invention

The present invention aims at the above on-site problems, and first introduces a touch screen human-machine interface (HMI), a wireless remote control device for remote operation, monitoring and real-time grasp of the working conditions of the machine equipment.

The following will briefly describe the principle of the electric control system of the wireless remote control band saw:

1. Operating system: It is composed of touch screen, emergency stop button, sound and light alarm and potentiometer. The touch screen human-machine interface (HMI) completes the collection and display of various operation instructions and various feedback data, parameters and information, and can be displayed in the Detailed fault alarm prompt information is found in the HMI; an emergency stop button on the operation box completes the emergency shutdown protection measures in emergency situations; the sound and light alarm buzzer installed on the operation box sends out a signal to remind the operator to pay attention to the fault Information; two potentiometers installed on the operation box are used as the analog source signal of the given analog value (0-10V) for speed control of the frequency converter.

2. Wireless receiving/sending system: The system is divided into two parts, one of which is installed in the operation box, and consists of a wireless communication receiving/sending module (this module contains a RS-485 serial port for two-way transmission of data and information, In addition, there are two digital switch unit channels built in, one of which is used to send "emergency stop" signal, the other is used to receive "alarm" signal), a wireless (analog) transmitting module (including two analog channels for In sending two 0-10V analog speed regulation given signals) and a lithium battery that provides power for wireless receiving/transmitting devices (the lithium battery has a large capacity, small size, light weight and can work continuously for 50 hours), the system's The other part is installed in the equipment machine (one of the wireless communication receiving/transmitting modules is connected to the "COM3" RS-485 serial communication port of the PLC through the "A/B" port, and is carried out according to the standard MODBUS communication protocol. Two-way transmission of data and information. One channel of the two-way switch unit in the module is used to receive the "emergency stop signal" and send the ON/OFF command to control the PLC power supply, and the other is used to receive the PLC "fault alarm signal" and send it back to the operation box to drive Sound and light alarm buzzer response), the wireless (analog quantity) receiving module installed in the machine sends the received "analog quantity speed regulation given signal" to the main frequency given port of the "host frequency conversion controller" respectively And the main frequency given port of the "swing arm/walking frequency conversion controller" realizes the "remote control operation" of frequency conversion speed regulation.

3. PLC command and control center: the system consists of a Delta DVP-12SA2 host and a DVP-08SN digital output module, through the host RS-485 serial port (COM3) and the wireless communication receiving/transmitting module "A/B" port Connected to complete the MODBUS communication between the "communication module" and the PLC, the other RS-485 serial port (COM2) in the host computer and the two inverters complete the "master-slave" parallel MODBUS communication, the system passes the input 1. The output unit sends relevant operation instructions to each controlled unit of the machine and collects various feedback information data, and sends out corresponding instruction signals after CPU analysis and calculation processing, and builds a complete computer through the PLC operation software processing system (that is, the operation program design part) The command center platform of the advanced electronic control system has powerful functions, extremely fast response speed and is stable and reliable.

4. Executing mechanism: The isolation and buffer output control unit is composed of 12 "intermediate relays". Output fault alarm prompt information, the fourth output lubricating grease pump ON/OFF control command (the program control is a combination of automatic timing start/stop and manual manual oil injection control two phases), the fifth output two inverter reset control commands, The sixth output is the ON/OFF control command of the walking contactor (2#), the seventh output is the ON/OFF control command of the swing arm contactor (1#) (the "interlock" function is set between the 1# and 2# contactors) ), the eighth output swing arm/travel: up/in ON/OFF control command, the ninth output swing arm/walk: down/back ON/OFF control command, the tenth output "swing arm" frequency conversion motor cooling fan ON/OFF control command, the eleventh output "walking" frequency conversion motor cooling fan ON/OFF control command, the twelfth output machine electric control cabinet cooling fan ON/OFF control command.

5. Double frequency conversion drive control system: the system consists of two frequency converters (one is the main frequency converter of the band saw and the other is the common frequency converter for "swing arm/walking"), two-way contactors (1#, 2# As the "swing arm" and "walking" frequency conversion motor switching and replacement control device), three power motors (one is the 55KW-6P band arm saw driving main motor, and the other two are 1.5KW-4P swing arm frequency conversion motor and 1.1 KW-4P walking frequency conversion motor), the command output by PLC: out1 controls the forward rotation start/stop of the main frequency converter of the band arm saw; the command output by PLC: out2 controls the reverse start/stop of the main frequency converter of the band arm saw ;The command output by PLC: out5-1 controls the fault reset of the frequency converter of the band arm saw; the command output by PLC: out5-2 controls the fault reset of the swing arm/walking frequency converter; the command output by PLC: out6 controls the walking The contactor starts/stops; the command output by PLC: out7 controls the start/stop of the swing arm contactor; the command output by PLC: out8 controls the start/stop of the swing arm/walking inverter; by PLC: out9 The output command controls the "down/back" start/stop of the swing arm/walking inverter; the frequency conversion speed regulation setting (with arm frequency conversion controller 1#) 0-10V analog quantity sent by the wireless remote control analog "receiving" module , as the main frequency given speed regulation signal source of the host inverter of the band arm saw, the frequency conversion speed regulation given (swing arm/walking frequency conversion controller 2#) 0-10V analog quantity sent by the wireless remote control analog "receiving" module , as the main frequency given speed regulation signal source of the swing arm/travel inverter, and the host current feedback signal output by the band arm saw host inverter, as the negative feedback signal source of the swing arm/walk inverter input to the swing arm/walk The auxiliary frequency port of the frequency converter, and completes the PI operation inside the frequency converter, and outputs the control source that can automatically adjust the running speed of the swing arm and the walking frequency conversion motor, so as to obtain the best cutting effect of the band saw; 1 signal sent by the two frequency converters #, 2# frequency conversion fault signals are respectively sent to the input ports of PLC: X0, PLC: X2 for system analysis and processing...

Description of drawings

Fig. 1 is the schematic structural diagram of the electrical control system of the band arm saw of the present invention;

Fig. 2 is a structural block diagram of the electrical control principle of the band arm saw of the present invention.

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

detailed description

The present invention will be described in detail below in conjunction with accompanying drawings 1 and 2. This embodiment can make it easier for those skilled in the art to understand the present invention, but this embodiment does not limit the present invention.

As shown in Figure 1, the present invention is a wireless remote control electrical automatic control system for band arm saws, which mainly includes: an operating system 1, a wireless receiving/sending system 2, a PLC command and control center 3, an actuator 4, and a double frequency conversion drive control system 5.

As shown in Figure 2, the operating system 1 is composed of Taiwan-made Weiluntong color touch screen HMI (human-machine interface) 10, emergency stop control sound and light alarm 11, and two-way potentiometer speed control 12. Interface) 10 completes the collection and display of various operating instructions and various feedback data, parameters, and information, and can find detailed fault alarm prompt information in the HMI. The touch screen HMI (human-machine interface) 10 receives/ The RS-485 (A/B port) serial port of the transceiver (communication, switching value) 20 performs two-way data exchange; the "DIN port" of the transceiver (communication, switching value) 20 is remotely controlled by the emergency stop button The "emergency stop switch signal" is sent out, and the sound and light alarm receives the fault alarm response digital switch signal from the wireless remote control receiver/transmitter (communication, switching value) 20 "DOUT port"; Wireless remote control transmission (analog 22 connection port ("A1U, A1-", "A2U, A2-") sends two 0-10V analog control signals.

The wireless receiving/transmitting system 2 is composed of a wireless data receiving/transmitting device (built-in "one input and one output" two-way switch circuit) and a wireless analog quantity acquisition controller. Wherein the wireless remote control receiver/transmitter includes wireless remote control receiver/transmitter (communication, switching value) 20, wireless remote control receiver/transmitter (communication, switch value) 21; ) 22, the wireless remote control receiver (analog quantity) 23 is formed (respectively built-in two-way analog quantity port). Wireless remote control receiver/transmitter, two "wireless remote control receiver/transmitters" with the same model undertake the two-way data transmission function between HMI and PLC, and complete the two-way reception and transmission of data, parameters and information (each wireless receiver/transmitter The transmitter has two functions of transmitting and receiving. The "output port" in the built-in switch circuit is used as the "emergency stop" signal of the command device; the "input port" is used to receive the fault alarm signal from the PLC and transmit it wirelessly. Sound and light alarm signals are issued on the operation box and specific fault text information is displayed in the fault information column of the touch screen for the operator to analyze and deal with), through the A/B port of the wireless remote control receiver/transmitter (communication, switching value) 21 It is connected with the RS-485 (COM3) serial port of PLC, and carries out two-way data transmission according to the standard MODBUS communication protocol; the "DIN" port of the wireless remote control receiver/transmitter (communication, switching value) 21 is responsible for receiving data from the PLC. : The fault alarm switch signal of out3, through the "DOUT" port of the "wireless remote control receiver/transmitter (communication, switching value) 21", sends the digital switch signal for controlling the on/off of the PLC power supply to realize the "remote control emergency stop" ; The wireless remote control transmitter (analog quantity) module 22 is responsible for sending two groups of 0-10V analog quantities to the wireless remote control receiver (analog quantity) module 23 (the wireless remote control analog quantity transmitter is only responsible for sending the 0-10V analog signal, wireless The remote control analog receiver is only responsible for receiving the 0-10V analog signal, and sends the collected analog speed regulation signal to the given port of the frequency given source of the respective driving frequency converter, as the control frequency converter running speed given signal), then the wireless remote control receiver (analog quantity) module 23 transmits the speed control given source (1 #), through the "A2U, A2-" port to the "AI1, GND" main frequency port of the swing arm/walking frequency conversion controller to transmit the speed control given source (2#).

The PLC command and control center 3 consists of a Delta DVP-12SA2 host, a DVP-08SN digital output module, a "broken belt, falling belt" detection sensor 32, and a swing arm flip counting sensor 31. It is composed of one of the ports of the PLC command and control center 3. (COM3) completes two-way communication transmission with the "A/B" port of the wireless remote control receiver/transmitter (communication, switching value) 21, and the other port (COM2) is connected in parallel with the RS-485 communication port of the two inverters to form a "main ——Slave station” communication mode, the “broken belt, falling belt” detection sensor 32 tracks and detects the running band saw situation, and feeds back the information to the X7 port of the PLC in real time, and sets a few seconds “broken belt, Belt drop” judgment, alarm, and shutdown protection functions. The swing arm flip count sensor 31 is responsible for transmitting the swing data of the swing arm to the X6 port of the PLC. The swing setting variable is set in the program control, which can be set in the HMI swing setting window. Set the swing value (lower swing: 0-60°; upper swing: 0-240°), in the "automatic mode" when the swing arm turns to the set value, it will automatically transfer to the "walking" running state, in this system There is also a swing arm limit protection function (lower swing: 80° protection, upper swing: 260° protection). This system has 12 output units that will send out various control commands in real time according to the design program.

The actuator 4 consists of 12 isolation/buffer intermediate relays, a lubricating grease pump, and three cooling fans. Out1 outputs the forward rotation start/stop command of the host, out2 outputs the host reverse start/stop command, and out3 outputs fault alarm information , out4 outputs the start/stop command of the lubricating grease pump, out5-1 outputs the host inverter reset command, out5-2 outputs the swing arm/walking inverter reset command, out6 outputs the travel contactor (2#) start/stop command, and out7 outputs Swing arm contactor (1#) start/stop command, out8 output swing arm/travel: raise/advance start/stop command, out9 output swing arm/travel: lower/back start/stop command, out10 output swing arm frequency conversion motor cooling Fan start/stop command, out11 outputs the start/stop command of the cooling fan of the variable frequency motor for walking, and out12 outputs the start/stop command of the cooling fan of the variable frequency motor of the electric control cabinet.

The dual frequency conversion drive control system 5 includes the arm frequency conversion controller 50, the swing arm/walking frequency conversion controller 51, the swing arm contactor (1#) 52, and the walking contactor (2#) 53. This system is controlled by PLC, It is controlled by the combined command of the wireless (analog quantity) "receiving" module, and its running state is driven by the running program to drive the electric motor. The difference between this system and the general variable frequency drive motor is that only one 1.5KW frequency converter can Drive the 1.5KW-4P swing arm turning motor and control the 1.1KW-4P walking motor respectively (because of the Inovance MD380 series inverter, up to 4 sets of vector control methods with different power motor parameters can be set, so as to drive the operation of motors with different power segments respectively Need), the switching between "swing arm" and "walking" is through the interlocking and alternate use of swing arm contactor (1#) and walking contactor (2#).

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solutions of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims (2)

1. the armed saw wireless remote control automatic electrical control system of stone mines sawing device, it is characterised in that：Including operation system Unite, wirelessly transmit/receive system, PLC command and control centers, executing agency and double variable frequency drive control systems；Operating system includes Touch screen human-computer interface and the potentiometer to send analog quantity adjustment signal, wirelessly transmitting/receiving system includes the first wireless telecommunications Transmit/receive module and the second wireless telecommunications transmit/receive module, wireless transmitter module and wireless receiving module, double Frequency Drive Controls System includes band saw main frame frequency-variable controller and swing arm/walking frequency-variable controller, touch screen human-computer interface and the first wireless telecommunications Transmit/receive module by RS-485 both-way communications to couple, the second communication transmits/receives module and passes through RS-485 with PLC command and control centers Both-way communication couples, and the first wireless telecommunications transmit/receive module and the second wireless telecommunications transmit/receive module and led to by RS-485 wireless two-ways News connection, the output end of potentiometer and the input of wireless transmitter module are connected, and the output end of wireless transmitter module is with wirelessly connecing The input connection of module is received, the first output end of wireless transmitter module is connected with the input with saw main frame frequency-variable controller, Second output end of wireless transmitter module is connected with the input of swing arm/walking frequency-variable controller, PLC command and control centers and band Saw main frame frequency-variable controller and swing arm/walking frequency-variable controller are coupled by RS-485 both-way communications, and the touch-screen is man-machine Interface is that platform produces Wei Luntong color touch screens, and the PLC command and control centers include Delta DVP-12SA2 main frames, DVP-08SN Digital output module, the broken belt for sawing running situation to detection band fall with detection sensor and to transmit the throw number of swing arm According to swing arm up/down throw sensor for countering, be connected with swing arm contactor on the swing arm/walking frequency-variable controller and walking connect Tentaculum, described pair of variable frequency drive control system also include 55KW-6P band saw driving main motor, 1.5KW-4P swing arms variable-frequency motor with And 1.1KW-4P walking variable-frequency motors, the executing agency includes 12 isolation/buffering auxiliary reclays, a lubricating grease pumps And three cooling fans, 12 isolation/buffering auxiliary reclays include rotating forward exporting main frame opening the/relay of stop instruction Device, open to export main frame reversion/relay of stop instruction, the relay to export fault alarm information, to export profit Sliding grease pump opens/relay of stop instruction, the relay to export swing arm/walking frequency converter reset instruction, to export row Walk contactor and open/the relay of the relay of stop instruction, open to export swing arm contactor/stop instruction, to export swing arm/OK Walk：Rise/enter to open/the relay of stop instruction, to export swing arm/walking：Drop/move back and open/the relay of stop instruction, to export pendulum Arm variable-frequency motor cooling fan opens/relay of stop instruction, open to export walking variable-frequency motor cooling fan/stop instruction after / the relay of stop instruction electrical equipment and is opened to export electrical control cubicles variable-frequency motor cooling fan.

2. the armed saw wireless remote control automatic electrical control system of stone mines sawing device as claimed in claim 1, it is special Levy and be：The operating system also includes scram button/audible-visual annunciator, scram button/audible-visual annunciator and first nothing Line communication transmits/receives module and is bi-directionally connected.