Pre-opening loading trolley and straightener of rolling forming machine

Pre-opening loading trolley and straightener of rolling forming machine 

What this Pre-opening loading trolley is used for？

Normalling speaking, for the very thick coil, it is hard to make the coil release after putting the coil to decoiler as the bending power is quite strong. After releasing the coil, the material head will bounce and easy to hurt people or make the coil bounce to other place.Then this device is needed. For the coil thickness below 3.0mm, normally speaking, it is not necessary. 

According to the automatic degree, the Pre-opening loading trolley and straightener of rolling forming machine also has some differences. For Zhongtuo cold rolling forming machinery, we have two types:

Simple version of Pre-opening loading trolley and straightener:

Structure feature: consists of Gap Bridge hydraulic flexible platform, pressing head, and uncoiling rollers. Sheet goes into straightener automatically after uncoiling. Straightening rollers with tempering and chroming heat treatment which improve the surface stiffness and roughness. There are pinch rollers and straightening rollers. Pinch rollers can be adjusted individually.

Higher version of Pre-opening loading trolley and straightener of rolling forming machine :

Pre-opening loading trolley, straight machine
This system is a pre-unwinding system that takes the strip head out when the coil is sent to the uncoiler. Save time for unwinding.The loading trolley carries the steel coil and lifts the steel coil to the main shaft of the uncoiler. The loading trolley is driven by a hydraulic motor. An active rotating roller is mounted above the loading trolley to drive the coil to rotate during pre-opening.
The trolley lift is driven by a hydraulic cylinder.A shovel head device, a straight head device, a feed roller and a clamping device are arranged on the side of the loading trolley.The shovel head in the shovel head device is extended and lowered, and the lifting and lowering are controlled by the hydraulic cylinder.
The straight roller is used to flatten the strip head for easy entry into the leveler and is controlled by a hydraulic cylinder.The car follows the XY coordinates to automatically control the loading

The uncoiler of double head with loading car and with the crocodile head. It is used to support the rotation of the coil. The main shaft is stretched and tightened by a hydraulic cylinder at the rear. After the coil is clamped, the pinch roller is placed on the coil by a hydraulic cylinder. The coil is driven by a motor reducer mounted on the top. The strip is fed into the pinch leveler. The unwinding uses pneumatic braking. Above the uncoiler, there is a pressure roller that prevents the roll. The uncoiler can be fully translated by the rear hydraulic cylinder, the plc is controlled by the upper feed, and the photoelectric detection automatically slows down.