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aluminum foil rolling mill electrical control

Luoyang Shun Gang Machinery Co., Ltd.

aluminum foil rolling mill electrical control

Country/Region china

Company Luoyang Shun Gang Machinery Co., Ltd.

Categories Aluminum Foil Roll

Update 2012-02-21 13:16:56

ICP License Issued by the Chinese Ministry

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mill and rolling mill production line of electric control program, and the production line electrical control [Process Overview]: production line according to production process is divided into the entrance section, process section, exit section three part of the inlet into the process section of the role is to ensure a continuous strip, the main equipment open-book machine, welding machine, 1 # s roll, entry looper car; process section of the device has 2 # s rollers, furnace rolls, furnace grate , air knife, 3 # s roll, this section requires a constant speed steel, aluminum foil thickness; to the exit of aluminum foil rolled into a coil and ensure continuous production, the main equipment imported looper car, 4 # s roll, volume before the pinch roll, take-up machine.

galvanizing production line is characterized by: long lines, transmission equipment and more demanding tension control, easy to strip deviation, must be continuous production. [system components]: composed for the production line process characteristics, DC drive control techniques used in the United Kingdom produced mentoe series of all-digital DC control, winder tension control used for mentor ct company developed a template md29; plc is selected companies simatic siemens series, according to the characteristics of the composition of the production line system uses a master plc (s7-300 ) with three slave (s7-200 ) means, plc profibus is used for communication between the communication bus.

the main station located in the main control room, three from the station are located in three segments (entrance, process section, exit section ) of the main console. [System debugger points] a, the stable operation of each transmission equipment when the line speed must be consistent; b Each tension must be balanced range of foil strain stability, especially within the aluminum foil furnace tension; c, s each roll must be used according to their role to adapt its control mode (tension-type or speed type ); d , entrance and exit looper looper value sets using dual control volume and balance tension; e, entrance and exit looper looper in the value set on the basis of the amount of vibration control with a low, improve the entrance and outlet of tension accuracy; f, coiler epc system uses cosine and trapezoidal wave controlling the take-up roll of aluminum foil to ensure quality.

Third, the aluminum material cross-section units and electrical control flying shear cross-section aluminum timber unit's main task is to The cold rolling mill finished aluminum sheet rolling cut head and tail, trimming, straightening, cross-section, pallet main equipment uncoiler, crop shear, disc cutting, straightening machine, flying shears, conveyor , stacking pallets, etc.

flying shear is one of the key equipment, which ensure the blade and drive out other devices and synchronized with the speed strip in the case, the translation of the strip of cut to length as required for high precision shear 1 ) the system technical performance parameters: speed up machine out: 60m/min, cutting length :1000-4500mm, cut error: less than0.

5mm, open-book maximum tension: 20000n, open rolls diameter: 500 -1700mm incoming incoming width :620-1260mm thickness :0.2-3 .2 mm (depends straightener ). 2 ) Electrical control system: aluminum material for the cross-section units and flying shear characteristics of the process to select high-performance control components to meet the control requirements is the key.

As the control of the plc, the company chose the siemens simatic series; flying shear and other DC-DC motor drive unit is used in ct's mentor - Series all-digital DC control devices; Clippers selection of low-inertia motor motor zfqz- 280-21b, in order to ensure the rapid start and stop flying shear.

mentor - Series all-digital DC control device has a typical double-loop control of features, all-digital menu-driven parameter setting, and line adjustment; to ensure the system works fast, and all DC drive units are used to working four-quadrant all-digital DC control devices. Which uncoiler also selected md29 template tension control.

3 ) flying shear control system equipment characteristics a, the traditional close to the switch position, to automatic blade positioning pulse encoder (debug code disc replacement or when an automatic positioning ), eliminating the proximity switch has dead zone, prone to temperature, vibration and other factors affecting the shortcomings; b, the main program execution cycle time of less than 1ms, a fundamental guarantee for the control precision; c, line speed or change the machine cut the length of the column does not affect the normal cut cut; d, prescribing the use of special optimization procedure, greatly reducing the prescribing process execution time; e, plc profibus bus architecture using master-slave mode, greatly reducing the field of cables and wiring work, and system reliability has be

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