Servo control system for ultra-high-speed crop shear
By adopting Siemens' servo control system in high-speed wire production lines, the problems of limited control accuracy, low motor efficiency and high maintenance costs in traditional systems are solved, and more efficient and higher quality production is achieved, and operation and maintenance costs are reduced.
Patent Information
- Application Number
- CN202421794597.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In the traditional high-speed wire production line, the automatic control and transmission methods of cutting head shears have problems such as limited control accuracy, low motor efficiency and high maintenance costs.
The servo control system is adopted that includes control module, program execution module, transmission module, data acquisition module and network diagnostic module. Siemens' SIMOTION D motion controller, S120 frequency converter and SLM module are used to realize AC-direct AC rectifier inverter and 4K PWM pulse width modulation to improve control accuracy and motor efficiency.
It significantly improves the efficiency and product quality of high-speed wire production lines, reduces operation and maintenance costs, and meets the high standards of modern production.
Smart Images
Figure CN222850870U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rolled piece processing, in particular to a servo control system for an ultra-high-speed crop shear. Background Art
[0002] In traditional high-speed wire production lines, the automatic control and transmission of the head shear are mainly realized by DC motors and DC control systems. The start and stop of the flying shear is completed by using a DC speed regulator to drive the DC motor. Among them, the advantages of the above system are that it adopts a DC control method, which is simple, widely used, and easy to maintain; it is cost-effective and suitable for production environments with limited budgets.
[0003] However, the DC control in this system uses a thyristor bridge rectifier, with a theoretical fastest adjustment speed of 3.33ms, which is much lower than the computing speed of the control unit, resulting in limited control accuracy. The system uses a DC motor, which has a simpler structure but a much lower motor efficiency than an AC servo motor. The DC motor uses a start-stop control method to control the flying shear, which requires the flying shear to start and stop in a very short time. In this way, the speed of the flying shear cannot be designed too high, and the head shear cannot accurately control the start time of the flying shear after starting, which results in an uncontrollable basic error that cannot be eliminated. In addition, the current in the DC motor must be commutated through carbon brushes, which will cause a lot of carbon brush wear during use and must be replaced regularly, resulting in an increase in maintenance costs. Summary of the invention
[0004] In view of this, the purpose of the utility model is to provide a servo control system for an ultra-high-speed crop shear, which can significantly improve the efficiency and product quality of the high-speed wire production line, while reducing operation and maintenance costs, and meet the high standards of modern production.
[0005] In a first aspect, an embodiment of the utility model provides a servo control system for an ultra-high-speed crop shear, characterized in that it includes:
[0006] A control module, a program execution module, a transmission module, a data acquisition module, and a network diagnosis module, wherein the control module is connected to the program execution module, and the program execution module is respectively connected to the transmission module, the data acquisition module, and the network diagnosis module;
[0007] The control module includes a controller unit, and the transmission module includes a frequency converter unit and a rectifier unit; the controller unit is provided with a Siemens SIMOTION D motion controller, the frequency converter unit is provided with a Siemens S120 frequency converter, and the rectifier unit is provided with a Siemens SLM module.
[0008] Preferably, the control module is communicatively connected to a host computer, and the host computer is provided with a human-computer interaction interface, through which a user can control the system.
[0009] Preferably, the controllable rectification of the system is realized based on the AC-DC-AC rectification and inversion mode, and the output frequency of the system is controlled based on the 4K PWM pulse width modulation mode.
[0010] Preferably, the data acquisition module is used to collect data in real time; the network diagnosis module is used to remotely monitor the system and perform fault diagnosis and analysis on the system; and the program execution module is used to execute a computer program that can be operated by a user.
[0011] The beneficial effects of the utility model are as follows: the control system provided by the utility model can significantly improve the efficiency and product quality of the high-speed wire production line, while reducing operation and maintenance costs, meeting the high standards of modern production.
[0012] The utility model is equipped with Siemens SIMOTION D servo motion controller and Siemens S120 frequency converter, so that the system can meet the demand for high-speed data processing, so that the flying shear can maintain high efficiency and high precision performance during operation, and can also feed back the braking energy of the flying shear during speed regulation to the power grid, which is more energy-efficient than the traditional braking system. In addition, the system is also equipped with a data acquisition module, a network diagnosis module, and a program execution module, which is convenient for users to monitor the system and quickly diagnose system faults, and the operation and maintenance cost is low.
[0013] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures specifically pointed out in the description, claims and drawings.
[0014] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 A schematic structural diagram of a servo control system for an ultra-high-speed crop shear provided in an embodiment of the utility model.
[0017] Figure 2 A schematic structural diagram of a SIMOTION D servo motion controller for a servo control system of an ultra-high-speed crop shear provided in an embodiment of the utility model. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] To facilitate understanding of this embodiment, Figure 1 A servo control system for an ultra-high-speed crop shear disclosed in an embodiment of the utility model is introduced in detail.
[0020] Embodiment 1: The embodiment of the utility model provides a servo control system for an ultra-high-speed crop shear, comprising: a control module, a program execution module, a transmission module, a data acquisition module, and a network diagnosis module, wherein the control module is connected to the program execution module, and the program execution module is respectively connected to the transmission module, the data acquisition module, and the network diagnosis module;
[0021] Among them, the control module includes a controller unit, and the transmission module includes a frequency converter unit and a rectifier unit; the controller unit is equipped with a Siemens SIMOTION D425 servo motion controller, the frequency converter unit is equipped with a Siemens S120 frequency converter, and the rectifier unit is equipped with a Siemens SLM module.
[0022] In this embodiment, the SIMOTION D servo motion controller is used to control the servo AC motor, and the servo AC motor is used to control the flying shear. In addition, the SIMOTION D servo motion controller has powerful computing power and can meet the needs of high-speed data processing; the S120 inverter can be better compatible with the SIMOTION D motion controller; the SLM module is a smart power supply (Smart Line Module, SLM) module. In addition to the rectification function, the SLM module also includes the ability to feed back the braking energy obtained during the speed regulation of the flying shear to the power grid.
[0023] Furthermore, if Figure 2As shown, the SIMOTION D servo motion controller includes 12 DI input points and 16 DI / DO switchable input and output points, of which DI / DO9, IN / OUT0 and IN / OUT1 are high-speed input points. The system uses these input points to collect the proximity switch signals of the flying shear, which are used for the passive zero return of the flying shear axis, bar axis and angle respectively. The input functions of IN / OUT2 and IN / OUT3 are used as the calibration input of the channel to correct the cutting length, and the output function of IN / OUT4 is used to drive the motor fan contactor.
[0024] The SIMOTION D servo motion controller also includes four DRIVE-CLIQ interfaces, a PROFINET interface and a DP interface. The DRIVE-CLIQ interface can be used to connect the driven S120 inverter or encoder module, and the PROFINET interface and the DP interface are used to communicate with the host system to achieve high-speed, real-time data exchange.
[0025] Preferably, the control module is communicatively connected to a host computer, and the host computer is provided with a human-computer interaction interface, through which a user can control the system.
[0026] Among them, the human-computer interaction interface can provide and display intuitive operation methods, making it easy for users to monitor and adjust the production process.
[0027] Preferably, the controllable rectification of the system is realized based on the AC-DC-AC rectification and inversion mode, and the output frequency of the system is controlled based on the 4K PWM pulse width modulation mode.
[0028] In this embodiment, the AC-DC-AC rectification and inversion method refers to a method of rectifying the industrial frequency AC power supply into a DC power supply through a thyristor, undergoing voltage stabilization and filtering, and then inverting it into a frequency-controllable AC power supply through a high-power IGBT to achieve the speed regulation function of the AC motor.
[0029] Preferably, the data acquisition module is used to collect data in real time; the network diagnosis module is used to remotely monitor the system and perform fault diagnosis and analysis on the system; and the program execution module is used to execute a computer program that can be operated by a user.
[0030] In this embodiment, the programming language of the computer program is structured text (ST) language, which facilitates the implementation of complex motion control logic while improving the user's programming efficiency and maintenance convenience.
[0031] Among them, through remote monitoring of the system and fault diagnosis and analysis of the system, users can easily solve system fault problems and effectively reduce the maintenance cost of the system.
[0032] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above-mentioned embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A servo control system for an ultra-high-speed crop shear, characterized in that: include: A control module, a program execution module, a transmission module, a data acquisition module, and a network diagnosis module, wherein the control module is connected to the program execution module, and the program execution module is respectively connected to the transmission module, the data acquisition module, and the network diagnosis module; The control module includes a controller unit, and the transmission module includes a frequency converter unit and a rectifier unit; the controller unit is provided with a Siemens SIMOTION D425 servo motion controller, the frequency converter unit is provided with a Siemens S120 frequency converter, and the rectifier unit is provided with a Siemens SLM module.
2. A servo control system for an ultra-high-speed crop shear according to claim 1, characterized in that: The control module is in communication connection with a host computer, and the host computer is provided with a human-computer interaction interface, through which a user can control the system.
3. A servo control system for an ultra-high-speed crop shear according to claim 1, characterized in that: The system's controllable rectification is achieved based on the AC-DC-AC rectification and inversion method, and the output frequency of the system is controlled based on the 4K PWM pulse width modulation method.
4. A servo control system for an ultra-high-speed crop shear according to claim 1, characterized in that: The data acquisition module is used for real-time data acquisition; the network diagnosis module is used for remote monitoring of the system and performing fault diagnosis and analysis on the system; the program execution module is used for executing a computer program that can be operated by a user.