Steel Coil Slitting Line

Composed devices

1 Hydraulic entry coil car

2 Hydraulic de-coiler

3 Hydraulic press and pinch device

4 Cutter

5 Looper1

6 Side guide device

7 Slitting machine

8 Scrap winder

9 Looper2

10 Tension stand

11 Recoiler

12 Hydraulic exit coil car

13 Hydraulic system

14 Electrical control system

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Product Description

I.Technical Parameter:

Steel coil parameters	Control model	PLC Frequency conversion control
	Material	CR,HR
	Yield strength	≤550mPa
	Steel thickness	0.5-3mm
	Steel width	500-1700mm（Max）
	Steel coil I.D	Φ508mm(480-520mm)
	Steel coil O.D	≤Φ1600mm（Max）
	Steel coil weight	≤20T
Slitter parameters	knife pivot diameter	Ф200 mm
	Knife pivot material	40Cr
	Blades specification	Φ200mmXφ340mmX14mm
	Blade material	H13K
Slit parameter	Max slit quantity	5pcs(3mm) 8pcs(2mm) 15pcs(1mm) 30 pcs(0.5mm)
	Width precision	≤±0.1mm
	Min strips width	30mm
Recoiler parameter	Recoiler ID	Φ508mm
Recoiler parameter	Recoiler coil weight	≤15T
Other parameters	Power	380V/50Hz/3Ph
	Line speed	30-60m/min
	Capacity	About 180 Kw
	Whole line Dimension	About 23m(L)X8m(W)
	Operator needed	1 mechanical engineer ,2 common workers
	Line direction	From right to left(Face to machine)
	Machine color	Blue

II. The flow of the process

From right to left, Uncoiler + coil car—Press and pinch device+Head cutter —Side guide device + slitter + Scrap winder—Tension stand—Recoiler +coil car

III. Composed devices

No	Name	Quantity
1	Hydraulic entry coil car	1set
2	Hydraulic de-coiler	1 set
3	Hydraulic press and pinch device	1 set
4	Cutter	1 set
5	Looper1	1 set
6	Side guide device	1 set
7	Slitting machine	1 set
8	Scrap winder	1 set
9	Looper2	1 set
10	Tension stand	1 set
11	Recoiler	1set
12	Hydraulic exit coil car	1set
13	Hydraulic system	1 set
14	Electrical control system	1 set

IV、Brief instruction

1.Hydraulic entry coil car

◆The car can move levelly and vertically, which is convenient for putting the steel coils into the de-coiler.

◆It is driven vertically by hydraulic cylinder with four guide pillars.

◆The level movement is driven by cycloid motor.

◆The capacity of it can reach to 20Tons(MAX)

◆Function: It is used to lift up and down, move forward and back to make it easy to load the coils on decoiler. Hydraulic controls lifting, motor drives moving. The car is controlled on the auxiliary control panel. Its moving speed is 6-7m/min. When the coils on decoiler, the car will return back to the start position. It can also carry back the unfinished coils from decoiler.

Hydraulic de-coiler

◆Structure：Hydraulic expand and shrink to tight the inner hole of steel coils from 480-520mm,if add the big rubber rings,can be to 610mm.

◆The max capacity: 20T with hydraulic supporting arm

◆Cycloid reducer 4KW drive the running of steel coil.

◆Function: Fixed the coil to achieve unwinding function, with brake. The car makes the inner holes of steel coils aim at the de-coiler center. The hydraulic expand and shrink de-coiler is driven by hydraulic, to tight the inner hole of steel coil.

Hydraulic Press and pinch deviceand 5-roller pre-leveler device(15KW)

◆Two hydraulic cylinders controlled unwinding rubber roller lifting.

◆Hydraulic shovel head, hydraulic power shovel-head ect feeding steel plates.

◆Hydraulic pressing & guiding device: Driven by 15KW motor. Setting manual clutch. Pinch roller pressed by hydraulic cylinders.Drive mode using the lower roller drive. The diameter of hydraulic cylinder is: φ100

◆It is made by drive device , 2 pinch roller and 5 leveler rollers and frame.

◆Structure: It is welding by steel plates and profiled bar

Hydraulic head cutter

◆Adopt double type structures, can cut the 3mmX1700 steel plates.

◆Blades are H13K material and the up and down clearances is adjustable.

◆This device is used to shear the head of coils and make the material go through the slitter very conveniently, and it can also be used to cut the big coils into the small coils.

Loop I

◆The roller-table lift up and down by hydraulic.

◆The size of the pit: 3500mm(L)x2000mm(W)x4000mm(D)

Side guide device

◆It is composed of the frame, guide roller, adjustment device, movable platform and multi-roller wheel

◆The vertical rollers on the both sides guide the sheet right into the slitter.

◆Both sides of guiding vertical rollers adjust by the motor drives the both ends of the screw. The adjusting width is: 500-1700mm.

Slitting machine (55KW AC)

◆Specification of blades：Φ340×Φ200×15 material：H13K.

◆Electric motor：55KW frequency conversion control motor to control the speed. Control mode is frequency control.

◆Reducer: cycloidal reducer

◆Function: It equips the side guide device, to achieve positioning strip and stop the jumping of strip. Improve the accuracy of slitting. It can shear actively or passively. To achieve different strip thickness accuracy requirements of slitting

Item	Parameters and details	Note
Power	55KW AC
Shaft	Φ200
Material of shaft	40Cr
Blade specification	Φ340×Φ200×15

Scrap winder(4KW)

◆It used to wind the scarp strips.

◆It consists of base, the shaft and plate of scrap material, friction wheel, supporting wheel chain, chain, decelerator and 4Kw motor.

Loop II

◆The roller-table lift up and down by hydraulic.

◆The size of the pit: 3500mm(L)x2000mm(W)x4500mm(D)

Tension stand

◆The frame welded by steel plates.

◆Consist of base ,pre-dividing shaft, bracket, press shaft, hydraulic damp device and hydraulic shaft lifting the press down device. Supporting slices, spacers and etc.

◆Function: It also have the side guide device for finished strips and prevent them from jumping and improve the recoiler quality. To establishing a stretching force with recoilier, to make sure the even quality and tight of steel coils after recoiling.

Recoiler(90KW AC)

◆Structure：hydraulic expand and shrink model.

◆Specification of shaft：Φ508x1700mm；

◆The max capacity: 15T with hydraulic supporting arm

◆Motor：90KW

◆Decelerator：JZQ650 i＝40.17

◆Overall steel plate cantilever structure

◆Function: It cooperates with the finished steel strips after first pre-dividing and second dividing to insure the even and tight quality of recoiler. Recoiling tension adjustable, Recoiling speed adjustable.

Hydraulic exit coil car

◆The car can move levelly and vertically, which is convenient for putting the steel coils into the de-coiler.

◆It is driven vertically by hydraulic cylinder with four guide pillars.

◆The level movement is driven by cycloid motor.

◆The capacity of it can reach to 15tons(MAX)

Hydraulic system

◆Composed of hydraulic oil pump, pipes, connectors, etc

◆Ensure the use of every hydraulic part.

Electrical control system

◆It controls the speed of the whole line. The main operation table can make the whole line change from high to low speed. And it can also make the plate into the machine manually.

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