A major supplier of radiator tubes, specialising in export to the US market, is phasing in three new high-speed cut-to-length machines, which using Quin’s Mk2 PTS servo controllers.
Quin Systems has been working with a UK machine builder over the last three years to supply high-speed cut-to-length machines to customers in Europe and North America. The machines are essentially flying shears which are fed with a continuous supply of aluminium tube at speeds of up to 180m/min. The machines will produce cut lengths in the range 150mm to 1200mm and at cut rates of up to 350 cuts/min. Two brushless servomotors are position-synchronised to a master encoder using a Quin Mk2 PTS servo controller.
During the initial design stage, the machine was simulated using Quin’s Camlinks software. The package is supplied by Quin to allow a machine builder to analyse a proposed design prior to a machine being built. Motions, masses and geometry can all be modified interactively and their effects examined graphically.
Such a dynamic application requires tight closed-loop motion control, fast servo loop updates, pro-active gain terms and high-resolution position feedback ensure accurate cut lengths at the high speeds, required by today’s users.
Further software development is being undertaken to enhance the performance of the system still further. The company aims to put the machine at the forefront of its field and make it a first choice replacement for existing mechanical cut-off systems.
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