Control device of profile continuous rolling line cogging mill

Abstract

The utility model relates to a profile continuous rolling line cogging mill control device, which is characterized in that a cogging mill frequency converter is arranged in a cogging mill transmission cabinet, a communication card I and a communication card II are arranged on the cogging mill frequency converter, a master station PLC (Programmable Logic Controller) and a switch are arranged in a control cabinet, the master station PLC comprises a communication module I and a communication module II, and the switch comprises a switch I and a switch II. The first switch is connected with the first communication network card and the first communication module through ports. The first switch is further connected with the first-level automatic PLC through a port. The second switch is connected with the second communication network card and the second communication module through ports. The second switch is further connected with the monitoring PDA system through a port. An electromagnetic shielding layer is arranged in the control cabinet to ensure that electrical components in the control cabinet are not influenced by external electromagnetic waves, and normal operation of equipment is ensured; the monitoring PDA system is connected with the main station PLC, the main station PLC is connected with the remote IO station, collected information is transmitted to the monitoring PDA system, and unified monitoring of a central control room is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of electrical control, in particular to a control device for a blanking machine of a profile continuous rolling line. Background Art

[0002] The slab opening machine of the large-scale continuous rolling line is one of the important process equipment, which is responsible for the slab opening and rolling of the slabs coming out of the heating furnace. The slab opening machine control device of some large-scale plants of some enterprises has the following problems:

[0003] 1. The operator can only start and stop the continuous rolling line billet opening machine equipment by pressing the buttons on the operation box beside the machine, and the inspection personnel can only check the equipment operation status by the indicator lights on the operation box and the cabinet door beside the machine;

[0004] 2. When the control device is actually running, it is often affected by external electromagnetic waves, which interferes with the operation of the equipment;

[0005] In response to the above problems, reform is urgently needed. Utility Model Content

[0006] The utility model aims to provide a control device for a profile continuous rolling line blanking machine, which does not require an operator to operate the equipment by the machine side, does not require an operator to inquire about the equipment running status by the machine side, and improves the electromagnetic wave interference capability of the control device.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] A control device for a blanking machine of a profile continuous rolling line comprises a blanking machine transmission cabinet and a control cabinet. A blanking machine frequency converter is arranged in the blanking machine transmission cabinet, and a communication card 1 and a communication card 2 are arranged on the blanking machine frequency converter. A master station PLC and a switch are arranged in the control cabinet. The master station PLC comprises a communication module 1 and a communication module 2. The switch comprises a switch 1 and a switch 2. The switch 1 is respectively connected to a communication network card 1 and a communication module 1 through ports, and the switch 1 is also connected to a primary automation PLC through a port; the switch 2 is respectively connected to a communication network card 2 and a communication module 2 through ports, and the switch 2 is also connected to a monitoring PDA system through a port.

[0009] The inverter of the billet opening machine is used to drive the main motor of the steel billet opening machine. The inverter of the billet opening machine adopts an AC-DC-AC inverter.

[0010] The monitoring PDA system includes a PDA server, the PDA server is connected to the switch 2 through a port, and the monitoring PDA system is arranged in the central control room.

[0011] The master station PLC also includes a CPU module and a communication module three. The CPU module, the communication module one, the communication module two and the communication module three are connected through ports, and the communication module three is connected to the remote IO station through a port.

[0012] There are multiple remote IO stations, each of which includes a communication module four. The communication module four of each remote IO station is connected to the communication module three of the PLC master station through a communication port.

[0013] It also includes UPS, which is used to provide uninterrupted backup power to the control cabinet and the billet opening machine transmission cabinet.

[0014] An electromagnetic shielding layer is provided inside the control cabinet.

[0015] The control cabinets include control cabinet 1, control cabinet 2, and control cabinet 3. A PLC master station is installed inside control cabinet 1, a remote IO station is installed inside control cabinet 2, and switch 1, switch 2, and UPS are installed inside control cabinet 3.

[0016] The control cabinet and the blanking machine transmission cabinet are grounded separately.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. An electromagnetic shielding layer is installed in the control cabinet to ensure that the electrical components in the control cabinet are not affected by external electromagnetic waves and ensure the normal operation of the equipment;

[0019] 2. The control cabinet and the transmission cabinet of the blanking machine are grounded separately. The control cabinet and the transmission cabinet of the blanking machine are connected to the corresponding grounding box through the corresponding grounding cables, and the grounding terminals and the equipment shells of the corresponding equipment are connected through the grounding wires in the cabinet to ensure the grounding of the electrical components in the cabinet to avoid electromagnetic radiation affecting the normal use of other electrical components;

[0020] 3. The control cabinet 2 is set in the main power room of the blanking machine. During the equipment maintenance, it is convenient for maintenance personnel to operate the equipment start and stop through the buttons on the touch screen of the control cabinet 2. They can also check the equipment operation status at any time through the touch screen, saving time and effort;

[0021] 4. The circuit breaker 1 and relay group 2 in each control cabinet are arranged separately, which can effectively isolate the power supply and signal power supply to ensure the safe operation of the equipment. The circuit breaker is installed at the upper end of the control cabinet to facilitate the maintenance personnel to open and close the switch, and the relay group is installed at the lower end of the control cabinet to facilitate wiring;

[0022] 5. The remote IO station is used for motor lubricating oil flow, pressure, motor bearing temperature, stator temperature, wind temperature, and motor cooler leakage detection signals, and transmits the collected signals to the analog input module. Since the monitoring PDA system is connected to the main station PLC, and the main station PLC is connected to the remote IO station, the collected information is transmitted to the monitoring PDA system, which is convenient for unified monitoring in the main control room. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic diagram of the network structure of the control device of the profile continuous rolling line blanking machine.

[0024] Figure 2 This is a schematic diagram of the equipment layout in control cabinet 1.

[0025] Figure 3 This is a schematic diagram of the equipment layout in control cabinet 2.

[0026] In the figure: 1-circuit breaker; 2-relay group. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the accompanying drawings of the specification, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0028] The following examples are implemented based on the technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0029] Embodiment 1:

[0030] A control device for a blanking machine of a profile continuous rolling line includes a blanking machine transmission cabinet and a control cabinet. The control cabinet and the blanking machine transmission cabinet are respectively provided with grounding bars ELT. The control cabinet and the blanking machine transmission cabinet are grounded separately. An electromagnetic shielding layer is provided inside the cabinet of the control cabinet. The electromagnetic shielding layer adopts the announcement number CN218244266U. The patent name is a PLC cabinet with electromagnetic shielding function. Other models can also be used. The control cabinet includes control cabinet 1, control cabinet 2, and control cabinet 3. A PLC master station is installed inside the control cabinet 1. Figure 2 , a remote IO station is installed inside the control cabinet 2, see Figure 3 , the control cabinet 3 is installed with switch 1, switch 2, and UPS. UPS is used to provide uninterrupted backup power supply to the control cabinet and the billet opening machine transmission cabinet. The control cabinet 1 and the control cabinet 3 are respectively arranged in the power distribution room. The control cabinet 1 and the control cabinet 3 are both provided with circuit breaker 1 and relay group 2. The circuit breaker 1 and relay group 2 in each control cabinet are arranged separately. The circuit breaker is installed at the upper end of the control cabinet to facilitate the maintenance personnel to open and close the switch. The relay group is installed at the lower end of the control cabinet to facilitate wiring; the control cabinet 2 is set next to the billet opening machine. During the equipment maintenance, it is convenient for the maintenance personnel to operate the equipment start and stop through the buttons on the touch screen of the control cabinet 2; the billet opening machine transmission cabinet is provided with a billet opening machine inverter, which is used to drive the operation of the steel billet opening machine. The billet opening machine inverter adopts an AC-DC-AC inverter. The billet opening machine inverter is provided with communication card 1 and communication card 2; the control cabinet is provided with a master station PLC and a switch. The master station PLC is used to start and stop the billet opening machine and the billet opening machine auxiliary equipment, see Figure 1The master station PLC includes a CPU module, a communication module 1, a communication module 2, a communication module 3, a digital quantity module, and an analog quantity module. The CPU module, the communication module 1, the communication module 2, the communication module 3, the digital quantity module, and the analog quantity module are connected through ports. The coils of relay group 2 are respectively connected to the digital quantity modules through ports. The normally open contacts of relay group 2 are used to connect to the coils of the contactors of the main circuit of the equipment. The main contacts of the contactors of the main circuit of the equipment are used to connect to the power input port of the inverter of the blanking machine. The main circuit of the equipment is connected to the digital quantity module through relay group 2 to ensure the safe operation of the digital quantity module. Communication module 3 is connected to the remote IO station through the DP port. The remote IO station is used to collect the motor stator temperature, rotor temperature, wind temperature, bearing lubrication pressure and flow, and cooling water leakage detection data of the blanking machine, and transmit the collected data to the master station PLC in the electrical room.

[0031] The motor lubricating oil flow, pressure, motor bearing temperature, stator temperature, wind temperature, motor cooler leakage detection signal, and transmit the collected signal to the analog module. The remote IO station includes communication module four, communication module five, touch screen, and analog module. Communication module four, communication module five, and analog module are connected through ports. Communication module five and touch screen are connected through ports. The touch screen is on the cabinet door of control cabinet two. Communication module four of the remote IO station is connected to communication module three of the PLC master station through the communication port; the switch includes switch one and switch two. Switch one is connected to communication network card one and communication module one through Ethernet ports respectively. Switch one is also connected to the first-level automation PLC through Ethernet port The first-level automation PLC is used to control the start and stop, speed and direction of the blank opening machine according to the on-site production process sequence; the switch two is connected to the communication network card two and the communication module two through ports respectively; the monitoring PDA system includes a PDA server and a PDA data acquisition module, the PDA data acquisition module is connected to the PDA server, and the PDA server is connected to the switch two through a port. The PDA data acquisition module is used to collect real-time data on the operation of the blank opening machine and the blank opening machine's auxiliary equipment. The real-time data includes the motor's current, voltage, speed and operating status, etc. The PDA server is used to monitor, record, analyze the cause of failure and operating status of the real-time data, etc. The monitoring PDA system is set in the central control room.

[0032] The utility model provides an electromagnetic shielding layer in the control cabinet to ensure that the electrical components in the control cabinet are not affected by external electromagnetic waves, thereby ensuring the normal operation of the equipment; the control cabinet and the blank opening machine transmission cabinet are grounded separately, and the control cabinet and the blank opening machine transmission cabinet are connected to the corresponding grounding boxes through corresponding grounding cables, and are connected to the grounding terminals and equipment casings of the corresponding equipment through grounding wires in the cabinet, thereby ensuring the grounding of the electrical components in the cabinet and avoiding electromagnetic radiation that affects the normal use of other electrical components; the second control cabinet is arranged in the main electrical room of the blank opening machine, and during the equipment overhaul, it is convenient for maintenance personnel to operate the equipment start and stop through the buttons on the touch screen of the second control cabinet, and can also check the equipment operation at any time through the touch screen The circuit breaker 1 and relay group 2 in each control cabinet are arranged separately, which can effectively isolate the power supply and signal power supply to ensure the safe operation of the equipment. The circuit breaker is installed at the upper end of the control cabinet, which is convenient for maintenance personnel to open and close the switch. The relay group is installed at the lower end of the control cabinet for easy wiring. The remote IO station is used for motor lubricating oil flow, pressure, motor bearing temperature, stator temperature, wind temperature, and motor cooler leakage detection signals, and transmits the collected signals to the analog input module. Since the monitoring PDA system is connected to the main station PLC, the main station PLC is connected to the remote IO station, and the collected information is transmitted to the monitoring PDA system, which is convenient for unified monitoring in the main control room.

Claims

1. A control device for a profile continuous rolling line blanking machine, characterized in that: It includes a transmission cabinet and a control cabinet for a blank opening machine. The transmission cabinet for the blank opening machine is equipped with a frequency converter for the blank opening machine. The frequency converter for the blank opening machine is equipped with communication card 1 and communication card 2. The control cabinet is equipped with a master station PLC and a switch. The master station PLC includes communication module 1 and communication module 2. The switch includes switch 1 and switch 2. Switch 1 is connected to communication network card 1 and communication module 1 through ports respectively, and switch 1 is also connected to a first-level automation PLC through a port; switch 2 is connected to communication network card 2 and communication module 2 through ports respectively, and switch 2 is also connected to a monitoring PDA system through a port.

2. A control device for a profile continuous rolling line blanking machine according to claim 1, characterized in that: The frequency converter of the blank opening machine is used to drive the main motor of the steel blank opening machine to operate, and the frequency converter of the blank opening machine adopts an AC-DC-AC frequency converter.

3. A control device for a profile continuous rolling line blanking machine according to claim 1, characterized in that: The monitoring PDA system comprises a PDA server, the PDA server is connected to the switch 2 via a port, and the monitoring PDA system is arranged in a central control room.

4. A control device for a profile continuous rolling line blanking machine according to claim 1, characterized in that: The master station PLC also includes a CPU module and a communication module three. The CPU module, the communication module one, the communication module two and the communication module three are connected through a port, and the communication module three is connected to a remote IO station through a port.

5. A control device for a profile continuous rolling line blanking machine according to claim 4, characterized in that: There are multiple remote IO stations, each of which includes a communication module four. The communication module four of each remote IO station is connected to the communication module three of the PLC master station through a communication port.

6. A control device for a profile continuous rolling line blanking machine according to claim 1, characterized in that: It also includes UPS, which is used to provide uninterrupted backup power to the control cabinet and the billet opening machine transmission cabinet.

7. A control device for a profile continuous rolling line blanking machine according to claim 1, characterized in that: An electromagnetic shielding layer is arranged inside the cabinet body of the control cabinet.

8. A control device for a profile continuous rolling line blanking machine according to claim 7, characterized in that: The control cabinets include control cabinet 1, control cabinet 2, and control cabinet 3. A PLC master station is installed inside control cabinet 1, a remote IO station is installed inside control cabinet 2, and switch 1, switch 2, and UPS are installed inside control cabinet 3.

9. A control device for a profile continuous rolling line blanking machine according to claim 1, characterized in that: The control cabinet and the blank opening machine transmission cabinet are grounded separately.

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