How to ensure the welding accuracy of pipe welding machine?
The processes used for butt welding of welded pipe unit include uncoiling, clamping, straightening, shearing, guiding, butt welding, looper and centering. The process can be described as complex and changeable. We must strictly follow the specific butt welding process flow.
1. After the coil is well positioned, the left and right cone heads of the uncoiler can be inserted into the coil and rotated at the same time. The head can be sent to the pinch roll, and the upper roll of the pinch roll can be pressed down, so that the coil car and the magnetic roll can return to the original position.
2. In order to make the spring steel strip run accurately, the uncoiler can move+150 mm axially as a whole before running. After the uncoiler is started, the strip steel arrives at the straightener equipped with dust remover through pinch roll.
3. The straightened spring steel strip is sheared with a sliding hydraulic shear on the head and tail of the strip steel (the sheared strip steel head can slide into the waste box immediately, and the sheared strip steel tail can be collected in the special aggregate box outside the line with an output device).
