The unicut 200 machining centres are designed for the fully automatic cutting to size and machining of PVC profile bars.
Various enhanced configurations enable manufacturers to produce 100 to 250 window units/shift.
These machines carry out cutting to size and complete bar machining operations. Machining with steel reinforcement is optionally possible.
The machines are non-profile-specific and allow any profile to be machined, up to cross-sections of 125 x 125 mm.
A label printer has been integrated for marking the cut sections. Bar section optimisation can be carried out by the window manufacturing program or optionally calculated by the machine itself for any number of supplied bars and off-cuts.
Production sequence
The NC grab shaft places the blanks, which are up to 6 m long, in exactly the right machining position in the CNC bar machining centre, where all drilling and milling operations are carried out on the blank. Then the PVC bars are transported to the sawing sub-assembly for cutting to length. Note that the NC pivotable saw can be set to any cut angle from 30° to 150°.
The resulting off-cuts are transported on a waste conveyor into provided mesh boxes. In machines without steel reinforcement completion the finished cut sections are ejected onto a delivery table.
Cutting to size and machining centre with following steel reinforcement completion
If customers wish a steel reinforcement completion and in order to ensure optimum clock-timing coordination for high production volumes, a special workpiece carrier transport system is used after the sawing sub-assembly. This transport system has sufficiently large, dynamic buffers between the stations.
The transport system feeds the finished cut sections to the steel insertion equipment. Steel insertion takes place either manual or fully automatically.
With manual steel insertion, the steel to be inserted is displayed on the monitor for operator convenience. The PVC profiles with the inserted steel are then bolted by the servo-driven automatic bolting device.
The placement of all dowel and transom holes as well as transom milling are carried out in the following module. Drilling of key handle holes and complete house door machining are offered as an option. Before the bars are stacked, it is possible to mount the closure mechanisms on the bars. The finished bars are ejected on a delivery table or, as an option, sorted into carousels or wagons with numbered compartments.
The following modules can be added to the machine on request:
- Module 04: fully automatic steel insertion
- Module 07: transom milling
- Module 08: closure mechanism mounting on detached bar
