Transducer applies in what go up into type drawbench continuously

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  • source:BACHTEL CNC Machining
One, the foreword rapid development as auto industry, also grow quickly to the demand of car tire. In the meantime, as a result of the rapid development of highway of our country advanced course, the traversal speed of the car also rose greatly, this raised taller requirement to the quality of car tire. And the main component that steel couplet line regards tire as, having main effect to the intensity of tire. The quality of steel couplet line is affecting the quality of tire, character, grade directly. The main production facilities that regards steel couplet as the line enters type drawbench continuously, application is wider and wider also. The inchoate straight drawbench that take form, basically give priority to in order to import, the drawbench that includes import of and other places of Germany, Italy, Korea is given priority to, these systems have dc timing, also have those who communicate frequency control. These equipment still are in in manufacturers of a few big steel couplet line now application. In recent years, as domestic machining ability rise, and the development of automation control technology, the straight drawbench that take form comes true basically already homebred change. The manufacturer of a few drawbench in and other places of river of Jiang Yin, pacify, already produced the straight drawbench taking form that gives timing of synchronism of communication frequency conversion. On these equipment, some applied the transducer of the entrance, be like: Danfoss, ABB, and the Yolico that Japanese Gong Chuan is producing without stannum, some also applied homebred transducer, be like: Collect plain etc. This application case is actor benefit health (the case of form a complete set on the straight drawbench taking form that Yolico) transducer produces in Jiangyin. 2, brief introduction of principle of job of the straight drawbench that take form enters type drawbench continuously is the facility of diminutive serial production that has composition of many drawing head, through chasing class drawing, can an one-time steel wire is cold the specification that draws place to need, work efficiency is so taller. But, because pass the drawing of each class hind, the line means of steel wire produced change, linear velocity of job of every drawing head is so due also change. What configure according to drawplate is different, the drawing speed of each drawing heads also should change. Of drawing speed fiducial the second discharge bulk that is every steel wire that always carries drawplate is changeless, although the following formula holds water: V2 of × of R2 of π of V1= of π R2 × among them R: Enter the diametical V1 of wire steel wire: Enter the linear velocity R of wire steel wire: Give the diametical V2 of wire steel wire: The working rate of each drawing heads that give the linear velocity of wire steel wire to enter type drawbench continuously is based on the formula of above namely, make sure each drawing head synchronism move. But, the specification of above is the process of stable state job that is based on good position, as a result of the clearance of the error of mechanical drive and mechanical drive, still have in start, quickly, in the decelerate, job process that stops to wait for trends, each drawing heads cannot keep synchronous, so, there is tensional sensor on the most now straight drawbench that take form, trends measures the pulling force of the steel wire between each drawing heads, change tension into standard signal again (0~20mA or 0~10V) , with this standard signal feedback gives timing transducer, transducer makes process of closed circuit PID control with this signal, in advocate calculative of the PID on the overlay on speed adjusts an amount, the pulling force that maintains each tensional test point is constant, also made sure job of the straight drawbench that take form is in the working status of synchronous constant tension. According to the specification of above, the straight drawbench that take form raises taller requirement to the function of transducer. Transducer should have the following property. 1.

Moment of the motivation since low frequency is big, overload capability is strong, speed precision is tall 2.

Have inside buy PID function, the parameter of PID is rich 3.

Trends is answered fast so, we chose actor interest health (the actuating device that the transducer of vector of high-powered electric current of Yolico) regards the straight drawbench that take form as, this transducer satisfied the requirement of drawbench completely also in be used actually, answer fast, starting moment of force is large, overload capability is strong, when vector is controlled speed control precision is achieved 0.

2%(does not have PG) , have inside buy PID, PID parameter is rich, include PID gain, be restricted, slant buy is waited a moment. 3, configuration and the electrical system that show the straight drawbench that take form configure following plan institute to show, basically include the following shares: Touch screen, Xi Menzi TP270, 10 ′ true colour, can make up Cheng controller (PLC) , Xi Menzi S7-315-2DP, take interface of Profibus spot bus line, transducer, actor benefit health (the YD5000 of transducer of vector of high-powered electric current of Yolico) , inside buy PID, sensor, graph Er overcomes linear sensor, 0 ～ 10V, or 4 ～ 20mA. Feeling screen and PLC pass join of MPI bus line, through Profibus spot bus line joins between PLC and transducer, form network of high-speed spot bus line, the transmission rate of data is achieved 1.

5M, the response that raised transducer greatly speed, raised synchronous precision, when basically accomplishing regular job ceaseless silk. This is very effective to improving work efficiency. Navigate rate of the system is decided by last drawing transducer, compare according to the compression ratio of every drawplate and decelerate again, computational other of every machine stage advocate give rate, of the drawplate of sum of errors that goes up as a result of machinery wear away, make given parameter and real numerical value have certain difference, this difference is corrected through tensional arm. In fact, below tensional arm connective sensor of a position, this sensor measures the rotational point of view that gives tensional arm, the imitate that outputs 10V of a 0 ～ measures signal to give transducer, transducer is worth according to the position of set again (one is worth with the per cent of 10V relatively) , through PID computation, on the overlay on output frequency a correct an error is measured, eliminate afore-mentioned difference. In the system, the screen that touch a model regards man-machine as the interface, having the effect of man-machine interface, the compression ratio of every drawplate, input through touching modular screen namely, and, the screen that touch a model still can store a certain number of covering different drawplate parameter, convenient user chooses parameter of whole set drawplate quickly, and need not want to input parameter every time, went to the lavatory user, improved efficiency. The screen that touch a model still shows the real work parameter of each drawplate in the job, include voltage, electric current, speed to wait a moment, appear in the system when calling the police, touch the shows systematic trouble in time content on modular screen, convenient user is diagnosed in time, remove a few simple trouble. The screen that touch a model and PLC are to pass MPI connective, rate is: 187.

5K. PLC is the control center of whole system, controlling the working flow of whole system. Carry the operation of pushbutton, control every machine station before linkage, hind linkage, dot is moved reach whole system dot to move, move automatically. The drawplate compression ratio that inputs according to touching modular screen parameter, computation the synchronous speed of every machine stage, transmit transducer through Profibus bus line, by transducer electric machinery of stage of direct drive machine works. PLC still passes Profibus bus line, read the working parameter that takes transducer from inside transducer, unusual to all sorts of jobs of transducer make processing, show in time through touching modular screen. 4, this transducer is in epilogue to go up into type drawbench continuously use period of time comes, client report equipment moves smooth, start, stop, quickly, decelerate is flowing and stable, synchronous precision is tall, starting electric current is small, noise is low, already obtained what use a client finally is extensive approbate. CNC Milling CNC Machining