CN205519889U - A electrical control device that is arranged in steel rolling production line flying shear - Google Patents

Abstract

The utility model discloses an electric control device for flying shears in a steel rolling production line, comprising: a motion control unit, an electric transmission unit, an operation unit and a servo motor unit, the motion control unit is electrically connected with the electric transmission unit, The motion control unit is connected to the operation unit through network communication, and the electric transmission unit is electrically connected to the servo motor unit; the servo motor unit includes: an AC motor and an encoder module that adopt servo control, and the encoder The inverter module is electrically connected with the AC motor; the electric transmission unit includes: a power supply module and a motor module with a feedback function, the power supply module is electrically connected with the motor module; the motor module is respectively connected with the encoder module , The AC motor is electrically connected. The electrical control device of the utility model for flying shears in a steel rolling production line has the advantages of small maintenance workload, energy saving and the like.

Description

Electrical Control Device for Flying Shear in Steel Rolling Production Line

technical field

The utility model relates to the technical field of flying shears, in particular to an electric control device for flying shears in a steel rolling production line.

Background technique

With the development of management technology and control technology of industrial enterprises, steel mills put forward higher and higher requirements for the quality of rolled products, control precision and system stability. For this reason, it is necessary to develop a new type of flying shear control system for the characteristics of strong manufacturability, complex parameter correlation, and fast response to system requirements.

Flying shear is one of the key equipment to ensure normal production in the steel rolling production line. At present, the domestic flying shear electrical control system is composed of PLC, high-speed counting module, process control board and DC transmission device. There are many automation control devices involved in the system, and most of the devices are connected through the network. The maintenance of existing equipment requires a large amount of work and consumes a large amount of energy; in addition, due to the large amount of calculation and data exchange, the communication speed and the calculation speed of individual devices have a greater impact on the rapidity of the system, often causing positioning problems. The accuracy is not high, the cutting length error is large, and it is prone to malfunction and other problems.

Utility model content

The purpose of the utility model is to provide an electrical control device for flying shears in a steel rolling production line, which has the advantages of small maintenance workload and energy saving.

The technical scheme of the utility model is as follows:

An electric control device for flying shears in a steel rolling production line, comprising: a motion control unit, an electric transmission unit, an operating unit and a servo motor unit, the motion control unit is electrically connected to the electric transmission unit, and the motion control unit It is connected with the operation unit through network communication, and the electric drive unit is electrically connected with the servo motor unit; The AC motor is electrically connected; the electric drive unit includes: a power module and a motor module, the power module is electrically connected to the motor module; the motor module is electrically connected to the encoder module and the AC motor respectively.

Further: the motion control unit adopts a motion controller SIMOTION D.

Further: the operation unit is an industrial computer.

Further: the motion control unit is electrically connected to the electric transmission unit through a Driver-CLiQ cable.

Further: the encoder module uses an encoder SMC30.

Further: the encoder module is electrically connected to the motor module through a Driver-CLiQ cable.

Further: the motion control unit establishes a communication connection with the operation unit through an industrial Ethernet switch.

Further, it also includes: an alarm unit, the alarm unit is electrically connected to the motion control unit and the operation unit respectively.

Further, the alarm unit includes: an alarm chip, an indicator light and a buzzer, and the alarm chip is electrically connected to the motion control unit, the operation unit, the indicator light, and the buzzer respectively.

Compared with the prior art, the utility model has the following advantages:

1. Compared with the DC motor-driven flying shears in the prior art, the electric control device for the flying shears in the steel rolling production line of the present invention has the advantages of less maintenance workload and energy saving by using a servo-controlled AC motor.

2. The electrical control device of the utility model for flying shears in the steel rolling production line has simple structure, perfect functions, reliable control system, can meet the technical requirements of various rolling pieces, and improves the real-time performance, control accuracy and stability of flying shears and rapidity.

Description of drawings

Fig. 1 is a structural schematic diagram 1 of an electrical control device for flying shears in a steel rolling production line according to an embodiment of the present invention;

Fig. 2 is a structural schematic diagram II of an electrical control device for flying shears in a steel rolling production line according to an embodiment of the present invention;

Fig. 3 is a structural schematic diagram of an electrical control device for flying shears in a steel rolling production line according to another embodiment of the present invention.

detailed description

In order to make the above purpose, features and advantages of the present utility model more obvious and understandable, further detailed description will be made below in conjunction with the accompanying drawings and embodiments.

The utility model discloses an electric control device for flying shears in a steel rolling production line. As shown in Figures 1 and 2, they are schematic diagrams 1 and 2 of the structure of an electrical control device for flying shears in a steel rolling production line according to an embodiment of the present invention. In a preferred embodiment, the electric control device for flying shears in a steel rolling production line includes: a motion control unit 1 , an electric drive unit 2 , an operation unit 3 and a servo motor unit 4 . The motion control unit 1 is electrically connected with the electric transmission unit 2 . The motion control unit 1 and the operation unit 3 are connected through network communication. The electric transmission unit 2 is electrically connected with the servo motor unit 4 .

Wherein, the electric transmission unit 2 includes: a power supply module 201 and a motor module 202 . The power module 201 is electrically connected to the motor module 202 . The power module 201 is an intelligent power module with feedback function (for example, the intelligent power module SINAMICS S120 intelligent power module SLM 500kW produced by Siemens AG), the electric transmission unit 2 adopts the frequency conversion control method, and the three-phase AC power is converted into The DC power supply is converted into AC power with variable frequency by the motor module 202 to drive the servo motor unit 4 . The electric drive unit 2 receives and executes instructions and calculations from the motion control unit 1 , and feeds back real-time operating data to the motion control unit 1 .

The servo motor unit 4 includes: an AC motor 401 adopting servo control and an encoder module 402 . The encoder module 402 is electrically connected to the AC motor 401 . The AC motor 401 adopting servo control can provide a servo control function through a SINAMICS S120 frequency converter of Siemens. The power supply module 201 can feed back the energy generated during braking to the grid to save electric energy. The encoder module 402 is electrically connected to the motor module 202 . The motor module 202 is electrically connected to the AC motor 401 . The servo motor unit 4 is used as an actuator to cut the rolled piece by driving the mechanical transmission mechanism.

Preferably, the number of the AC motor 401 is one, the number of the motor module 202 driving the AC motor 401 is one, and the number of the power module 201 is one.

Compared with the DC motor-driven flying shears in the prior art, the electrical control device for the flying shears in the steel rolling production line of the utility model has the advantages of less maintenance workload and energy saving by using the AC motor 401 controlled by the servo.

In the process of flying shear, the movement of the rolled piece can be regarded as a main shaft, and the rotation of the flying shear can be regarded as the slave axis following the movement of the main shaft. The movement of the slave shaft needs to be synchronized according to the position and speed of the main shaft, so Position, speed, acceleration and current all need to be strictly controlled to ensure product quality and production rhythm. The motion control unit 1 is the core part of the electrical control device for flying shears in the steel rolling production line. Preferably, the motion control unit 1 adopts a motion controller SIMOTION D (such as SIMOTIOND425), and the motion controller SIMOTION D is produced by Siemens. The motion controller SIMOTION D can be written into the motion control task program to complete the establishment and calculation of the mathematical model of the motion relationship, and the closed-loop control of the position loop, speed loop and current of the servo motor. Specifically, after the control quantity (including position, speed, acceleration, etc.) generated by the main axis is processed synchronously, the given value is assigned to the slave axis to realize synchronous operation. The linear speed relationship between the main axis and the slave axis can be calculated through the electronic cam function. Realize the nonlinear transfer function function of the main axis and the slave axis. The motion controller SIMOTION D has high computing speed.

The motion control unit 1 and the electric transmission unit 2 are electrically connected through the Driver-CLiQ cable, so that the motion control unit 1 and the electric transmission unit 2 establish communication, and transmit real-time status information to the motion control unit 1 . Specifically, the motion control unit 1 is electrically connected to the power supply module 201 and the motor module 202 through Driver-CLiQ cables. The Driver-CLiQ cable is also produced for Siemens and is characterized by fast and stable performance. By adopting the above-mentioned motion controller SIMOTION D and Driver-CLiQ cable, the scanning period of the motion control system is shortened, the real-time and rapidity of the device are improved, and the control accuracy is guaranteed.

Preferably, the motion control unit 1 establishes a communication connection with the operation unit 3 through an industrial Ethernet switch 5 . The industrial Ethernet switch 5 is electrically connected to the motion control unit 1 and the operation unit 3 respectively. The Industrial Ethernet Switch 5 adopts the Profinet standard. The industrial Ethernet switch 5 reserves a spare industrial Ethernet interface, which is convenient for other PLCs and secondary management systems to access the device, and improves the communication expansion capability of the device.

Preferably, the operating unit 3 is an industrial computer. The operation unit 3 transmits the operation instruction to the motion control unit 1, and obtains the operating status of the device from the motion control unit 1, and feeds it back to the operator to provide a basis for future maintenance and upgrading to store real-time production data; Data adjustment of process parameters is conducive to improving product quality and productivity; at the same time, the displayed data can also provide some basis for maintenance.

The encoder module 402 uses an encoder SMC30. The encoder SMC30 is an incremental encoder, which can be connected to the incremental encoder signal. The encoder module 402 is electrically connected to the motor module 202 through a Driver-CLiQ cable. The actual running speed of the AC motor 401 of the servo motor unit 4 can be passed into the encoder module 402 by the incremental encoder signal, and the encoder module 402 communicates with the motor module 202 through the Drive-CLiQ cable to ensure the position loop. , Speed loop, current loop control accuracy.

In another preferred embodiment, the electrical control device for flying shears in a steel rolling production line further includes: an alarm unit 6 . As shown in FIG. 3 , it is a structural schematic diagram of an electrical control device for flying shears in a steel rolling production line according to another embodiment of the present invention. The alarm unit 6 is electrically connected to the motion control unit 1 and the operation unit 3 respectively. The alarm unit 6 includes: an alarm chip 601 , an indicator light 602 and a buzzer 603 . The alarm chip 601 is electrically connected with the motion control unit 1 , the operation unit 3 , the indicator light 602 and the buzzer 603 respectively. When the alarm unit 6 detects that the motion control unit 1 is abnormal, the alarm unit 6 sends instructions such as alarm, stop, and emergency stop to the operation unit 3, and can simultaneously buzz through the buzzer 603 and flash through the indicator light 602, Notify staff that the unit is malfunctioning.

The electrical control device of the utility model for the flying shears in the steel rolling production line has two modes for the operation control of the flying shears: manual operation and automatic operation. Before any shearing action, first perform zero calibration. Each mode includes cutting head, tail cutting, fixed size cutting and shredding functions. Among them, the manual operation mode: after selecting the manual operation mode on the operation unit 3, you can select the head cutting, tail cutting, fixed size and shredding functions and related lengths through the operation screen; the operation buttons include start, stop and emergency stop. Automatic operation mode: After selecting the automatic operation mode on the operation unit 3, the functions of head cutting, tail cutting, fixed size and shredding and related lengths can be selected through the operation screen; when the adjustment of head cutting, tail cutting, fixed size and shredding is satisfied automatically triggers the action.

The electric control device of the utility model for the flying shear in the steel rolling production line also has an automatic correction function, that is, in the actual production process, the shear length of the rolled piece can be adjusted online according to the process requirements without stopping the machine.

In summary, the electrical control device for flying shears in the steel rolling production line of the present utility model has simple structure, perfect functions, reliable control system, can meet the technical requirements of various rolling pieces, and improves the real-time performance and control accuracy of flying shears. , stability and rapidity.

The technical scheme of the present utility model has been introduced in detail above, and the principle and implementation of the present utility model have been set forth using specific examples in this paper. The description of the above embodiments is only used to help understand the core idea of the present utility model; at the same time For those of ordinary skill in the art, according to the ideas of the embodiments of the present invention, there will be changes in the specific implementation and scope of application. limits.

Claims (9)

1. the electrical control gear of flying shear in steel rolling production-line, it is characterised in that including: fortune Dynamic control unit, Electrified Transmission unit, operating unit and servomotor unit, described motion control unit Electrically connecting with described Electrified Transmission unit, described motion control unit is led to by network with described operating unit News connect, and described Electrified Transmission unit electrically connects with described servomotor unit；

Described servomotor unit includes: use servo-controlled alternating current generator and coder module, described Coder module electrically connects with described alternating current generator；

Described Electrified Transmission unit includes: power module and motor module, described power module and described electricity Machine module electrically connects；

Described motor module electrically connects with described coder module, described alternating current generator respectively.

2. the electrical control gear of flying shear, its feature in steel rolling production-line as claimed in claim 1 It is: described motion control unit uses motion controller SIMOTION D.

3. the electrical control gear of flying shear, its feature in steel rolling production-line as claimed in claim 1 It is: described operating unit is industrial computer.

4. the electrical control gear of flying shear, its feature in steel rolling production-line as claimed in claim 1 It is: described motion control unit is electrically connected by Driver-CLiQ cable with described Electrified Transmission unit.

5. the electrical control gear of flying shear, its feature in steel rolling production-line as claimed in claim 1 It is: described coder module uses encoder SMC30.

6. the electrical control gear of flying shear, its feature in steel rolling production-line as claimed in claim 1 It is: described coder module is electrically connected by Driver-CLiQ cable with described motor module.

7. the electrical control gear of flying shear, its feature in steel rolling production-line as claimed in claim 1 It is: described motion control unit sets up communication even with described operating unit by industrial ethernet switch Connect.

8. the electrical control dress of flying shear in steel rolling production-line as described in any one of claim 1～7 Put, it is characterised in that also include: alarm unit, described alarm unit respectively with described motor control list Operating unit first, described electrically connects.

9. the electrical control gear of flying shear, its feature in steel rolling production-line as claimed in claim 8 Being, described alarm unit includes: alarm chip, display lamp and buzzer, and described alarm chip is respectively Electrically connect with described motion control unit, described operating unit, described display lamp, described buzzer.