Click image to view full size image
1. Parameters
a. Technical parameters
Applied to: COLD ROLLED COILS
Tensile strength: δb≤450Mpa, δS≤260Mpa
Flat bar thickness: 2mm-8mm
Flat bar width: 20mm-100mm
b. Finished parameters
Precision of width: +0.3~-0.9mm
Precision of fixed length: 0~+5mm
Bending: ≤2.5mm/m
pitch of cutting: ≤2mm
c. Other parameters:
Line speed: 20-25m/min
Production: incessantly
Operation person: 1 technician and 1 common worker.
2. Brief introduction of the line
a. Simplified de-coiler
It adopts the de-coiling device to expand and shrink manually which could expand from φ300 to φ350
It has the device to block the coils to prevent they from loosing
It is equipped with the brake devices to control the tension of de-coiling and avoid inertia which may cause the coils spring-shaped open
b. 7 roller-straightener
It is divided into 2 pinch rollers and 5 leveling rollers
2 pinch rollers can eliminate part of the bur after the shearing, while the 5 leveling rollers pre-leveling the plate to feed the flat bar more easily
The diameter of the rollers isφ85 without power and both sides of the rollers are adopted the roll bearing to support
c. Chamfering and extrusion machine
It adopts the 12 stand roller which are divided into 6 groups , 3 groups on one side and press and squeeze each side to do the chamfering and edging
This part can make the sharp edge to blunt so that forming the sides of the flat bars
d. 2 roller-pinch and press device
It is driven by drive which is same with the straightener , with the reason driven rato to achieve synchronize
