Automatic Steel Coil Cold Rolling Mill Machinery , 2 - 8mm cut to length line machine

1. Technical parameters

a. Specifications

Application: carbon cold or hot rolled coil plate

Tensile strength: δb≤450Mpa

Material thickness: 2-8mm

Material width: 2000 (Maximum)

Coil I.D: φ500-φ760mm

Coil O.D: φ2000mm (Maximum)

Coil weight: 30T (Maximum)

Diameter of leveling roller: φ150

Distance of leveling roller: 160

Material of leveling roller: 42CrMo, hardness HRC52-60

b. Parameters of finished product

Tolerance of diagonal error: ≤±2.5mm/2000mm

Tolerance of length error: ≤±2mm/2000mm

c. Other parameters

Power: 380V/50Hz/3Ph

Line speed: 0-25m/min

Total power: about 180Kw

Area of the producing line(about): 25m(L)*8m(W)

Operators: one skilled worker and two general workers

Color of the equipment: grass green

2. Composed device

V saddle

Hydraulic coil car

Hydraulic top tight decoiler

Coil guide and pinch roll

Rolling table & side guide device

Leveling machine (straightener)

PLC length control device

8x2200 shearing machine

Swing pinch table

Discharge table

Electronic control system

Hydraulic control system

3. Brief introduction of the equipment

        (2-8) *2000 the decoiler-straightening-cut to length-piling line, mainly used for the uncoiling straightening and cutting to length of carbon steel rolls and preparing for the next processing units.

a. V saddle

Safety storage steel roll

b. Hydraulic coil car

The car can move levelly and vertically, which is convenient for putting the steel rolls to the uncoiler

It is driven vertically by hydraulic pressure

The level movement is driven by hydraulic cylinder

The weight it can carry is 30T (Maximum)

c. Hydraulic top tight decoiler frame

Supporting steel rolls and uncoiling

The moveable structure of double way hydraulic top tight

Hydraulic pressure drives the level and landscape orientation movement

Brake system, tapered feeding plate, 400 arrester brake

d. The pressing and decoiling device

The hydraulic pressure controls the lifting of the decoiling rollers

7.5 kw cycloidal pinwheel decelerator drives steel rolls running

Through hydraulic shovel, hydraulic balance device and hydraulic press against steel ,etc to feeding steel plates

Hydraulic pinch and pre-levelling system which is driven by the JCT-45kw exchange speed-control motor, JZQ500 decelerator, consists of the gear distribution box and gear clutch

The machinery structure is made by the welding and processing of steel plate and steel

e. Rolling table &side guide device

2-meter table is made up of roller rail, rack and bearing stand

It uses the device of the vertical rolls of both sides to guide the steel belt goes into the straightening device correctly

The vertical rolls of both sides are adjusted by the motor driving the shafts of both sides

f. Leveler

It makes uneven steels even and guide them to the right following processing and shears the material with fixed-length and packs with fixed-number

It is composed of 11working rollers, driving device, 2 pinch code rollers and stand. Both sides of each working roller is transmitted by spherical roller bearings and both are the main po