Advantages

With the fast developing of metal part processing technology, it’s more and more popular and widely usage of coil feed laser cutting line. 

1. Raw material is coils not blanks, coil was payoff by decoiler and feed to laser cutting machine after flat by precision straightener/leveler machine, reducing steps of cut coil to blanks firstly and then take blanks to laser one by one, saving material cost, manpower & material resources, increasing producing efficiency etc.

2. It has great advantages for multi-sizes and small order quantity products of coil feed laser cutting line than blanking line by punch machine with stamping dies. As each size product may need one set mold, it will cost too much for muti-sizes and small order quantity products, for laser machine, it just need to program in the computer and start to produce immediately.

3. It can make several products in one row for laser machine, saving material cost. On the contrary, for blanking line by punch machine with stamping dies, it has to zigzag feeding for punch’s feeder or it has to slit to be required coil to produce one in a row.

4. Comparing to produce by punch machine with stamping dies, product surface flatness is better of laser cutting, improving the utilization efficiency of raw materials.

5. Higher degree of automation, more suitable for long-term continuous processing of workpieces.

Comprising of the blanking line

1) MT-1800 model 15T hydraulic decoiler
2) 15T loading car
3) SHL-1800A model straightener with feeder
4) Electric cabinet
5) RMT-1800 model scrap recoiler

1. MT-1800 model 15T hydraulic decoiler

Function: It was used to loading coil and payoff strips automatically.

Structure: Welded by steel, equipped with press arm and hydraulic expansion device etc.
Capable of 1800mm width and 0.5-2.0mm thickness metal coils.
Loading capacity: 15T (Can be customized).
Press arm to hold the surface of the coil, preventing coil too loose. At one end of the press arm installed a PU wheel to press the strips, don’t hurt the coil.
Mechanical gantry tailstock arm device. It holds one end of the mandrel enhancing the mandrel has enough loading capacity and ensure safety and durable.
Hydraulic station, providing power source to drive the press arm, mandrel, support arm device, coil car etc.
Slide block model hydraulic expansion device. It can add machine’s expansion capacity and machine’s reliability, use life time etc. Max. loading capacity is above 15T. 

Decoiler’s mandrel expansion range: Ф550—Ф630mm.
Max. Coil O.D.Ф1500mm (Or as requirement).
Pay off strip with 11KW speed variable motor, payoff speed: 1-15m/min.
 

3. 15T coil car (refer to above image)

Function: It was used to load coils and automatically lift the coil to the mandrel of the unciler machine. And then the mandrel can expand and clamp the coil.

a) Loading capacity                 15T (can be customized)
b) Motor power                        hydraulic type
c) Coil fix method                    4pcs fixing bar
d) Coil width:250-1800mm (Min. Width coil should be fix by fixing bar)

4.  SHL-1800A model Straightener with feeder

4.1 Machine image (just for reference)

4.2 Machine main feature

• Suitable for material width of Max. 1800mm, thickness capacity of 0.4-2.5mm.
• It equips with 15pcs straightening rollers (UPPER 7pcs/LOWER 8pcs), roller material is 40Cr, All straightening rollers finished tempering and quenching, hard chrome plated and grind etc., Surface hardness comes HRC58-62°
• Backup roller device. Upper and lower the straightening roller sets, there are a few assistant rollers set to support the straightening rollers, enhancing the rollers long life time (Please refer to the following image).
• It equips with 2pcs feeding rollers, driven by a 15kw servo motor+ speed reducer. The power was transmitted via chains and gears.

Electric adjust straightening roller gap. Just need to set data in HMI’s touch screen (refer to the following image). Moreover, it has the function of memory and call it back of the producing data: such as different products different part code, straightener gap set data. (Refer to following image)

Support bridge. It was used to guide strip head and assist strip head conveniently inserting straightener’s entrance and then go through straightener part. It also set support bridge at straightener’s exist part so as to guide straightener head inserting feeder’s entrance.

3 Electric cabinet with operation panel

It was used to control the total zigzag coil feeding line. All main components come from worldwide famous brands with CE CERTIFICATION, good quality and safety, such as full sets of Schneider low voltage components, Japan Mitsubishi PLC, Japan YASKAWA servo motor etc. 

Machine main electric & electronic components

4 Scrap recoiler

It was used to roll scrap strips into coils, it equips with inverter, so machine’s running speed is adjustable of 1-15m/min

Material Max. width: 1800mm
Thickness capacity: 0.5-2.5mm
Coil I.D. of φ450-530mm
Coil Max O.D of φ1800mm
Loading capacity: 8T
Main power: 5.5KW
Inverter: DELTA
Winding speed: 1-15m/min