The Tube cutoff-bending (LFM) has been designed for a fast execution of the straight tubes (cut portions) and bended tubes (elbows) between 0 and 110°, with a length included between 0.6in/15mm and 11.8in/300 mm. The tube cutoff -bending has from 1 to 3 independent tracks for tubes with diameter up to 0.866in/22 mm, obtained from coils in copper, aluminum or other materials. The feeding of the tubes is made through pneumatic pliers moved by a step-by-step motor; the cut is orbital and the bending is made easier by the presence of an internal mandrel. A numeric control allows to program all operating functions, allowing to produce, in sequence, lots with different pattern; the machine itself shall separated them in different containers.
Decoiler

Non rotating type, side by side configuration. Pre-arranged for the application of kits for the use of coils without carton flanges.
| |
COIL WITH CARDBOARD
|
COIL WITHOUT CARDBOARD
|
| Max coil weight |
440 lb / 200 kg
|
440 lb / 200 kg
|
| Max outside diameter of coil |
3.75 ft / 1.145 mm
|
3.75 ft / 1.145 mm
|
| Max width of coil |
13.78 in / 350 mm
|
8.26/11in - 210/350 mm
|
| Inside diameter of coil |
5.11in / 130 mm
|
23.6in / 600 mm
|
Straightening unit

Considering the reduced size of tubes and elbows, a set of rolls performs the simple straightening of the tube on the vertical plan; the presence of calibrated grooves helps to restore the circularity of tubes before the processing.
Feeding unit

The feeding of the tube is obtained through the translation of two pliers of which one is mobile, by pneumatic drive and another fixed one that keeps the tube in position; the movement is performed by a brushless motor and a re-circulating balls screw. The measurement of the tube is controlled electronically through encoder, that can determine its length with centesimal tolerances.
Cutting unit

The cutting unit is of orbital type, rotating at a high speed, with a cutting tools and two back-up rollers disposed at 120°. The straight nipples are completely cut, while in the bended ones the tube is partially cut and then detached, thanks to a special movement of the bending head.
Bending unit

The bending unit is a pneumatic drive and it bends the tube in the interval 0 – 110°; thanks to the side movement of the head the elbow is detached and driven to the suitable container.
Collection unit

An inclined plan bears and conveys the collection containers of the elbows.
Control Panel

The control panel allows the programming and the control of the machine's functionalities. In versions by 2 or 3 tracks the control of each track is independent and it allows to produce in sequence different quantities and configurations. The malfunction and/or alarm messages are indicated on screen in order to make easier the troubleshooting.
Safety
The tube cutoff -bending is equipped with a safety guard; the opening of the guard places under safety conditions the machine. |