I Description:

This machine is specially designed for cutting silicon steel coils into lamination strips for transformer cores, welding machine cores, and reactor cores.

This machine is specially designed with a swing shear for different angle. The angles, hole position, V notching position and cutting length can be pre-set in the PLC, full automatic.

Lamination strips can be cut by this machine:

II Main features

- Delta AC servo system plus Delta PLC professional module achieve high precision feeding, quick response, high precision positioning, low noise; Max. feeding speed 100m/min, starting & braking time is less than 10ms.

- Full automatic finishing cutting, swinging angle, counting, cutting right angle, trapezoid, parallelogram, fish-head, etc.

- Equipped with online punching & V notching device, high productivity

- Cutting, punching and notching motors are inverter control, quick and low noise

- Screw rod center positioning, driven by step motor, automatic positioning

- Cutting blade, notching tool and punching tool are made by special carbide alloy, long life, less burr

- Step-lap function, max. 7 steps, each step max. two laminations

III Buildup of the machine:

• 3.1 Inverter-controlled decoiler: 

• l Motor power: 2.2 kW
• l Max. coil weight: 1000kg
• l Max. coil width: 300mm
• l Coil inner diameter: 480-520mm
• l Coil outer diameter: 1200mm

3.2 Automatic center positioning & guiding devices

• l Two devices, one in the beginning and one before cutting device
• l Both are driven by step motors, automatic positioning and centering
• l Strip width can be pre-set on the touch screen

3.3 High speed feeding machine

• l Servo motor driving: Delta servo motor, 3kW
• l Feeding precision: +/-0.02mm
• l Feeding speed: max. 100m/min
• l Feeding roller material: special mould steel in high hardness

3.4 Online V notching device

• l High speed motorized notching, 60 times per minute
• l Notch position tolerance: +/-0.1mm
• l Driving motor power: 1.5kW
• l Notching tool: high hardness carbide alloy, life more than 1,000,000 times before grinding; more than 20 grindings.
• l Notching position and numbers can be preset on the touch screen

3.5 Online punching device

• l High speed motorized punching, 60 times per minute
• l Suitable punching hole diameter: 8~20mm
• l Hole position tolerance: +/-0.1mm
• l Punching motor power: 2.2kW
• l Punching tool: high hardness carbide alloy, life more than 800,000 times before grinding; more than 20 grindings. (one size punching tool is included on the machine)
• l Punching position can be pre-set on the touch screen

3.6 Servo swinging and motorized cutting device

• l High speed servo drive swinging, 3-5s per rotate
• l Rotating angle precision: +/-0.1 degree
• l Rotating servo motor power: 3.0kW
• l High speed cutting, 60 times per minute (average speed in line, in general about 35-40 lamination strips per minute)
• l Cut-to-length tolerance: +/-0.1mm
• l Cutting motor power: 2.2kW
• l Cutting blade: high hardness carbide alloy, life more than 1,000,000 times before grinding; more than 20 grindings.
• l Quantity and length are pre-set on the touch screen

3.7 Belt transmitting table: length 2000mm, driving motor power 1.5kW

3.8 Stacking table: length 1800mm x width 920mm

3.9 Control system

• l Delta PLC
• l Delta touch screen 7”
• l Quantity, length, speed, angle combination can be pre-set on the touch screen

IV Main technical data

4.1 Suitable strip width: 30-300mm

4.2 Max. silicon steel thickness: 0.6mm

4.3 Cutting length: 1-999999mm

4.4 Cut-to-length tolerance: +/-0.1mm

4.5 Cutting angle tolerance: +/-0.03°

4.6 Hole position tolerance: +/-0.1mm

4.7 Notch position tolerance: +/-0.1mm

4.8 Burr height: less than 0.02mm

4.9 Feeding speed: max. 100m/min

4.10 Dimension: about 2.2m x 1.2m x 1.4m (excluding decoiler & transmitting belt)

4.11 Weight: about 1100kg