Auto Metal Roll Slitting Machine With Pneumatic Double Mandrel Uncoiler

2-6mmx1300mm slitter / CTL combination Line

Descrition:

3.1 Coil loading car

1)Structure: Four wheels, car body made by welding

   2)Driving motor: 3kw cycloid pin-wheel motor

   3)Up-down movement driving: hydraulic cylinder Φ200×700mm

   4)Up-down moving distance: 7500mm

   5)Max loading weight: 20000Kgs.

3.2 Double mandrel Uncoiler:

1)Structure and working style: Each of the double mandrels has three steps, and radial expansion through slider driven by hydraulic cylinder (Φ140×75mm); To make sure coil on centerline of the slitting line, the double mandrels bidirectionally move toward or faraway each other, or one of the mandrel bi-directionally move toward or faraway to the other, by hydraulic cylinder(Φ125×1100mm).

2)Three steps of each mandrel: Φ458～Φ508mm,Φ560～Φ610mm,Φ710～Φ760mm.

3Braking style: pneumatic pressure-regulating brake

4)Applicable coil width:800～1350mm.

  Max. coil diameter:2000mm.

  Max coil weight:20000Kgs

3.3 Coil-end guide & shoveling equipment

1)Coil-end guide structure: installed on decoiler's body, welding assembly of steel plates, up-down movement by hydraulic cylinder .

2)Φ80×500mm hydraulic cylinder, two pcs.

3)Traction wheel: Φ300 × 600mm, NBR rubber wheel

4)Driving motor for traction: 4kw cycloid pin-wheel motor

5) Coil-end Shoveling structure: welding assembly with steel plates, two tongue-shaped plates(big one to move up-and-down, small one to stretch-out & draw-back.)

6)Hydraulic cylinder for big tongue up-down movement: Φ80×400mm

7)Hydraulic cylinder for small tongue expansion Φ63×400mm

3.4Double-roller pinch feeding, five-roller leveler

  1)Double-roller pinch-feeder: welding assembly with steel plates, with double pinch rollers to feed strip forward.

  2)Feeding roller and leveling roller: Φ160×1350mm

3) Leveling roller: Φ160×1350mm

4)Material of feeding roller ad leveling roller: 40Cr, Heat treatment HRC55°～56°

5)Oil cylinder for press-down of pinch-feeding rollers: Φ80×100mm

  6) Press-down of leveling rollers: worm & worm gear, 2.5KW motor

 7) Pinch-feeding and leveling power: AC 15kw motor and gear speed reducer

3.5 End-cutting Equipment

To cut off the redundant end of hot rolled coils, here install one hydraulic shearing equipment for max.1300mm wide and 6mm thick strip.

3.6Hole Accumulator(1)

1)Structure: hole with cement walls, One turnover plate to cover the hole, so that strip pass over and accumulate some strip in the hole.

2)Hole dimension: 5mL×2,2mW×3mH

3)Composition of turnover plate: to weld square steel pipes to set up a frame, lay wearable plastic plates on the frame; at the both edges, sliding roller respectively.

4)Overturning movement of turnover plate is driven by hydraulic cylinder (Φ80×500mm)

3.7Aligner & presser

1)Structure: vertical rollers to restrict the progressing position of strip, and one pair of horizontal rollers to press strip.

2)Vertical rollers: three pairs, Φ120×125mm, 40Cr, high-frequency quenching

3)Horizontally press roller: Φ100×1350mm, 40Cr.

4)Hydraulic cylinder for up-down moving of press roller: Φ80×100mm

5)To adjust one side of vertical rollers by double lead screws with adjusting range: 800-1300mm

3.8Disc Slitting Machine

1)Structure: disc cutters circle shearing spindle tight, and the spindle is installed on support stand.

2)The spindle to install disc cutters: Φ250×1350mm

3)Material of the spindle: 40Cr, forging and tempering, medium-frequency quenching, hard chrome plating, fine polishing.

4)Disc slitting blades D380×d250×T10mm

5)Material of disc cutter: 6CrW₂Si, hardness after quenching HRC56-58°.

6)Driving style: 90KW DC motor, matched with speed reducer, gearbox and universal joints(brand of motor and reducer: Wuxi Xianfeng, Jiangsu Taixiang).

7)Control on DC motor: Eurotherm 590 controller(now under the American Parker company)

8)Pressing-down of shearing spindle: 2.2KW cycloid pin-wheel motor with worm gear box

9)To change disc cutter: hydraulically (Φ63×450mm)driven, one stand of the disc shearer outward move until disc cutters can be installed

10)slitting speed: ≤60m/min

11)slitting width accuracy:+/-0.03mm

3.9 Scrap reeler

1)Structure: Two scrap reelers, with one on each side of the slitting line

2)Each reel: Φ450×350mm

3)Each reel is driven by 7.5KW cycloid motor, slip is realized by friction wafer

4)Scrap-discharging style: hydraulically drive the scrap creel shrink, then can take scrap bundle down.

5)Scrap collecting style: hydraulically drive the creel to come-and-go

 3.10 hole accumulator (2)

    The same with hole accumulator (1).

3.11 Pre-separator and Tensioner

1)Pre-separating shaft: Φ95×1350mm

2)Pre-separating discs: Φ200×3mm, 65Mn quenching treatment

3)Manually move outward the stand of one side up to be able to install pre-separating discs

   4)Press & pinch-feed rollers: one pair of rollers, to press strip and pinch feed strip forward(Φ80×100 press-down cylinder, 7.5KW motor).

5)Tensioning style: press the upper beam of tensioner stand down, put wooden plate and wool felt between upper and down beams

6)The pressing-down strength is done by two Φ80×150mm hydraulic cylinders, and strength is adjustable.

7)Balanced length-measuring roller: Φ320×1350mm, covered with hard chrome plating

3.12 Recoiler and Separator

1)Gear drive by gearbox, expansion and clamping of recoiler is driven by hydraulic cylinder through slanting slider.

2)Recoiling block: Φ508×1300mm,at its side, with pushing plate to push finished coils out by hydraulic cylinder.

3)Strength for expansion of recoiler: hydraulic cylinder Φ160×100mm.

4)The support bracket of recoiling shaft: steel structural components, hydraulic cylinder Φ80×350mm

5)Strips-separating shaft: Φ75×1300mm

6)Separating discs: Φ230×3mm, 65Mn quenching treatment

7)Pressing-down the separating shaft: hydraulic Φ80×350mm, strength adjustable

8. Recoiling power: DC 110KW motor, connect to speed reducer, gearbox and universal joint

DC motor control: Eurotherm 590 controller

10)Recoiling speed: max 60m/min.

11)Max recoiled coil weight: 5000kgs

3.13 Coil-discharging car

1)Structure: four wheels, car body by welding

2)Driving motor: 3KW cycloid pin-wheel motor

3)Up-down movement driving: hydraulic cylinder Φ140×500mm

4)Up-down moving distance: 500mm

5)Max. loading weight:20000kgs.

3.14 central aligner

1)Structure: vertical rollers to restrict the progressing position of strip.

2)Vertical rollers: two pairs, Φ12×125mm, 40Cr, high-frequency quenching

3)To adjust one side of vertical rollers by double lead screws with adjusting range: 800-1300mm

  3.15 17 Roller Leveler

   1) Structure: 17 Leveling rollers, which are driven by motor and reducer through distribution gearbox and universal joints.

2) Both the up rollers and down rollers are supported by support rollers and brackets, with adjustable support tightened force.

3) The angle and press-down extent of up rollers can be adjusted according to leveling thickness; Two adjusting styles: electric rough adjustment and manual fine adjusting.

4) Heavy needle bearings and plane bearings ensure leveling rollers to work without run-off phenomenon.

5) Concentrate lubrication by thin grease lubricating pump.

6) Parameters:

  1)leveling roller:Ф160mm×1350mm

  2)Number of leveling rollers:17 rollers

  3)Material of rollers:40Cr medium-frequency quenching HRC58°-60°

       4) Material of Support rollers: 40Cr, quenching and tempering(HB230)

       5) Motor:75KW(DC speed-adjustable)

  6)Speed reducer:JZQ650,Universal joint:SWC85

       7)Gearbox:20CrMnTicenmented quenching

  8)Leveling line speed: max 40m/min

3.16 Shearing Machine

  1)Pneumatically mechanical style fast shearing

  2)Power: 15KW, with max shear capacity: 6mm thick, 1300mm wide plates.

3.17 Delivery belt

  3m length, 1350mm width

3.18 Sheets sending out device, lifting table and collecting table

1) Sheet Sent-outing Device

 Upper roller is pneumatically driven, moving up and down, and the sheet sending by motor.

(1) spec of the roller: Φ160×1300mm

(2) material of roller: 40Cr, HRC 50°～52°

(3) pressure drive: Φ125×100mm cylinder

(5) Main motor: 7.5KW cycloid pin wheel reducer

2) Structure of lifting table: lifting table body, hydraulic cylinder, sheets discharging railway.

 Lifting height: 500mm

 Hydraulic cylinder for lifting: Ф125X400

 Length of lifting table: 3m.

3) Structure of Sheets collecting table: H beam welded assembly, axis of working wheels, walking wheels, drive motor.

 Motor for walking: 2.2KW cycloid pin-wheel motor.

 Output way: from left side and from right side.

3.19 Hydraulic system

One set of hydraulic station, control valves(Victory), oil pipelines

Pressure : 16Mpa

 Power: 11KW-4(Ⅵ)

 pump brand: Yuci Yuken or Liaoning Fuxin

 Oil volume of oil tank

 3.20 Electric system

 Three Eurotherm590 DC speed control for Leveling, slitting, and recoiling DC motors.

 Three manipulation cabinets.

 Power source: 380V, 50Hz, 3phases

Applications:

Specifications:

1.  Basic technical parameters of coils

  1)Material of coils: CRCA/HRCA carbon steel, galvanized plate, colored steel plate etc.

  2)Strip thickness: 2～6.0mm

3)Strip width: 800～1300mm

     4)Inner diameter of coils: ≥Φ508mm(min. 508mm, max 610mm)

     5)Outer diameter of coils: Φ2000mm.

     6)Max. coil weight: 20000Kgs.

 7)Input direction: (from left to right) or (from right to left), it is decided by customer.

 8)Length of sheets: 500-3000mm

 9)Max slitting number: 10 strips.

2.  Working process

Coil-loading——double-mandrel uncoiling——Coil-end-guide & shoveling, Double-roller pinch feeder & five-roller leveler ——/head-cutting ----hole accumulator (1)—— Central-aligning(1) & Horizontal presser----Slitter—Scrap winder——Hole accumulator(2)——Tensioner, Pre-separator——Recoiler, coils discharging car——— Central aligner(2)——Leveler——Shearing machine——Delivery belt —— sheets-sending-out device, lifting-up table, sheets discharging car——Hydraulic control——Electric control