Wuxi Liguo Machinery Manufacturing Co., LTD

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Drawing principle of welded tube cold drawing machine
- Dec 13, 2018 -

The welded tube cold drawing machine realizes the reprocessing of the welded pipe, and is also the main processing equipment for producing small diameter, precision, thin wall and high mechanical performance pipes. During the cold drawing process, the drawing trolley is supported by two I-shaped rails, driven by the main cylinder, so that the trolley runs along the I-shaped rail. The main cylinder and the drawn trolley can be axially fixed to the trolley body by an adjustable split-type piston.

In the process of operating the welded tube cold drawing machine, the core rod is first inserted into the inner hole of the welded pipe, and then the core head is installed, and the front end of the steel pipe which has been put on the core head is pushed out to the drafting seat. The pre-tightening cylinder is started, the die is clamped to the welded pipe, the drawn car is in the starting position, and the main cylinder is started to be drawn.

At the end of the cold drawing process, the pre-tightening cylinder of the welded tube cold drawing machine performs corresponding action, the die releases the welded pipe, and the forked pipe pushes the drawn finished pipe out of the vehicle body, while the slider moves in the opposite direction. Quickly remove the plug from the tube for smooth cutting.

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