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1)Max. entering (steel) wire strength≥1250MPa
(2)Max. entering (steel) wire dia.5.5mm
(3)Min. exiting (steel) wire dia.1.4mm
(4)Pulling steel wire material carbon steel,CO2 wire and so on
(5)Max. steel wire drawing speed16m/s ( Normal using speed: 12m/s)
(6)Water volume 6m3/h (Water pressure ≥0.25MPa)
(7)Air volume1.5m3/h (Air pressure ≥0.6MPa)
(8)Motorsdrawing unit 30KW AC freq. con. motor
Take-Up unit 15KW AC freq. con. motor
(9)Drum of drawing machine
material steel ZG45~55, hardness alloy tungsten carbide is spraying-painted on working surface, with HRC60, roughness ≤1.6Ra.
Drum using life one year
Drum cooling mode narrow seam type water cooling for inner of drum, forced fan cooling for outer of drum.
(10)Die box
Welding part is adopted for die box, the spraying-painted tungsten carbide is adopted for the surface of guide wheel and guide roller.
The die box is divided into lub. powder cavity and water cooling cavity (water flowing automatically for cooling)
Die box is adjusted in universal directions.
(11) Electric Control system
Arrangement
a. Inverter“ABB” inverter is adopted.
b. PLC Japan Mitsubishi FX2N or siemen S7--300 Series
c. Sensor Germany imported TURCK
d. Low voltage electric appliances including relay Schneider
e. Contact screen Taiwan color contact screen
Wrking mode
The system adopts the PLC control, inverter and contact screen generally. The digital exchanging is completed by communication. PLC is used to read, write, start and stop the inverter at will. PLC software ensures the auto program editing and setting for different drawing technics and ensures the running smoothly. Color screen man-machine interface system can monitor equipment running status and failure display. All technics parameters of system can be input from contact screen with high precision, strong correctness and easy modification. It also ensures the wide drawing technics and easily realizes the die jumped drawing. The whole system runs reliably with low failure rate and easily operation. G. control pulpit
a. On pulpit, all drawing drum running conditions can be displayed.
b. It can control all drums and the single taking-in machine by linkage.
c. It can regulate the running speed by integration.
d. At EMG stop, it can realize the integrated linkage and EMG stop for paying-off, drawing and taking-in, also ensures no wire confusion, no breaking.
e. Automatically alarm when failure displays and display the locations where the trouble may take place and the causes.
(12)Take-Up machine
Narrow V-type combination belt is adopted for main driving.
With pneumatic brake and pneumatic core clamper unit (I-style spool supporting, double cone (without shaft))
For creel (winding), 50 polished rod creel stand
800mm I-style spool for steel wire taking in.
(13) Safe system
The protection shield start, the limit start functions for the to-length not reset, the air pressure not enough and the by-brake not reset (when protection shield opens, the equipment is at inching status)
Auto stop for wire breaking off, and ensure not wire confusion.
EMG pull rope switch can realize the rapid stop easily and quickly.
Mushroom buttons are arranged on main pulpit, taking-in and paying-off machines, EMG time ≤5S (quick stop ≤15S, normal stop≤30S).
(14) Functional description
The basic functions can be completed on drawer single positive inching, left linkage inching, right linkage inching, single negative inching, left (right) linkage running, stop, as well as the tension adjustment of tune roller, die box and the adjustment of drum cooling water volume.
On the pulpit, the following functions can be completed
G. start, G. stop, EMG stop, accelerate, decelerate, failure indicate, meter counting reset.
On contact screen, the following functions can be completed
Matched die (wire dia.) setting, speed setting, length setting (auto stop at to-length arrival), die jumping setting, inching speed setting, failure content display, actual running speed display.
wire drawing machine line