Technological process

Coil car—–uncoiling—straightening —-shearing machine—–stacking and piling system

Brief introduction of the line

ZT-12X1500 cut to length line with trimming device, it is used to make the steel coil straighten and cut to length

1.V shaped table

It is used to set the coil, to prevent from damaging the car due to putting the coil into car directly.

2.Hydraulic entry car

The car can move levelly and vertically, which is convenient for putting the steel coils to the un-coiler.It is driven vertically by hydraulic pressure and the level movement is driven by cycloid electromotor.

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. When the coils on decoiler, the car will return back to the start position. It can also carry back the unfinished coils from decoiler.

3. 3. Hydraulic Double head decoiler

◆Supporting steel rolls and uncoiling

◆It is designed with the double hydraulic movable structure

◆The hydraulic cylinders on both sides drive the landscape orientation movement

◆It is equipped with the brake devices and taper decoiler and the brake wheel.

◆Mechanical structure: the process is welded by steel plate and steel.

◆Main parameter

Name	Instruction	quantiry
Capacity	30T
decoiler model	taper
expand range	508mm/610mm/760mm	1
centring oil cylinder	φ125mm,1100mm diameter 125mm, distance of run 1100mm	2

4. Press and pinch and pre-leveler device(37KW AC)

◆This is composed of bottom-stand(frame), hydraulic pressing and guiding arm, hydraulic shovel-head device, pinch and preliminary leveling device, power device, etc.

◆Hydraulic pressing & guiding device is composed of hydraulic pressing and guiding arm, pressing and guiding wheel(cover by rubber), sprocket wheel, chain, accompany of motor, etc.

◆Hydraulic shovel-head device is composed of shovel-head body, hydraulic shovel-head, balanced device for hydraulic shovel-head.

◆Hydraulic pinch and preliminary leveling machine is composed of slide-stand, pinch roller(2pcs), hydraulic pinch device, 5pcs of pre-leveling rollers, hydraulic pre-leveling device, etc.

◆Power device for pinch is composed of 37KW AC speed control motor, decelerator, gear distributor case, clutch, one group spindle etc.

◆Brief introduction: the steel coils on the decoiler through the press arm to press down. Cut off the belts and running the press wheel by the motor to make the steel head moving forward. Expand the Hydraulic shovel-head device and adjust the balance cylinder to control the height of the shovel-head. Once receiving the steel  head, lift up and down the hydraulic head-leveling device to press and straighten the head to ensure the head can pass the press and pinch device smoothly. Adjusting the pre-leveling roller to feed the pre-leveled sheets to roller table.

5. Transition table

◆It is the working table which is composed of the rollers, frames and bearings, etc.

◆Width:1500mm, length:1.5m

◆Diameter of rollaway: f140mm,bearing(HRB212):8

◆Description: It is used to convey plate, use the friction from rollaway preventing plate and the work table to protect sheet

6.Side guide device1

◆Side guide device is composed guide frame, flexible plate, guide adjust device, vertical-roller type side guide rollers

◆Parameter

thcikness name	1.2~12mm
Adjustable width	800~1500mm
Amount of side guide rollers	4
Press roller	Φ120mm diameter:Φ120mm
HRC	50~54
Bearing of side guide rollers	7212, 8212：each 2 sets; 314：8sets

◆The function of guide device is that the center of plate after transiting by press and pinch device point the center line, to prevent the plate offset.

7. Trimmingmachine（132KW DC）

Power part: consist of bottom base, decelerator, 132KW DC motor and universal coupling as well as gear distributing case, coupler, spindle, connecting-cover, etc.

Host machine: This is composed of bottom-stand, fixed bracket, big slide, 2pcs knife pivot , movable bracket, slide, bracket adjustment device (fore-and-aft), knife pivot lifting and pressing down adjustment device, accompany of  blade, separating cover, rubber band.

No	Name	Parameter
1	Control model	PLC DC control
2	Applied to	HR
3	Tensile strength and Yield strength	δS≤260Mpa
4	Thickness	1.2-12mm
5	Width	800-1500mm
6	ID	Φ508/610mm/760mm
7	OD	≤Φ2000mm
8	Coil weight	≤30Ton
9	Diameter of leveling roller	Φ190mm(4-12mm)
10	Distance of leveling rollers	200mm
11	Number of leveling rollers	11pcs
12	Diameter of leveling roller	Φ85mm(1.2-4mm)
13	Distance of leveling rollers	90mm
14	Number of leveling rollers	17pcs
15	Material of leveling roller	GCr15
16	knife pivot diameter	Φ280mm
17	Knife pivot material	40Cr
18	Blades specification	Φ280mmXφ460mmX15mm
19	Trimming strip quantity	2pcs
&nbsp20	Material of cutter blade	H13K
21	Speed	≤25 m/min
22	Cutting speed	it is about 6-7 pieces for 1m per minute; it is about 5-6 pieces for 2m per minute; it is about 4-5 pieces for 3m per minute; it is about 3-4 pieces for 4m per minute; it is about 2-3 pieces for 6m per minute
23	Direction of feed material	from right to left
24	Length tolerance	±1.5mm (L=2m)
25	Diagonal tolerance	±2mm(L=2m)
26	Straighten precision	±1.5mm
27	Power	380V/3PH/50HZ
28	Color	Green