How Do Stripping Units Work in Die Cutting?

January 30, 2017

There's no good time to stop a high-volume die cutter, no interval where the coordinated movements can be interrupted to facilitate some secondary task. Material throughput is primary, so supplementary tasks must be accommodated by an in-line solution. In-line stripping units work to accommodate this non-stop output cycle, with their waste-removing components ejecting media scrap. This is an important function, but why? And just how do these stripping units work in die cutting?

Stripping Units: A Quick Overview

This is the section of the equipment that addresses wastage issues. It ejects messy scrap, the waste that collects while the cutting blades rise and fall to create their cutouts. Located behind the cutting plates, accumulating debris is quickly removed by the stripping units so that the machinery continues to work unimpeded. The waste elimination apparatus employs pneumatic power and streamlined mechanical assemblies to assure impeccable results.

Weighing Die Stripping and Power Stripping Options

Several popular methods come into play when scrap paper requires a rapidly deployed removal mechanism. The established approach uses male and female stripping components to accurately locate and transport the waste away from the working platen. It's a near foolproof mechanism, especially since it is part of the synchronous working parts. Like clockwork, the stripping die moves the male and female plates into place just after the cut has been made. Interestingly, pneumatically powered armatures offer an alternate solution. Instead of in-line plates, this second solution uses a many-toothed chain to rapidly eject excess paper media.

Media-Sensitive Mandates

Chain-driven power strippers efficiently remove corrugated cardboard and slivers of paper after they've been cut from their blanks. Likewise, the female and male plates hold the blanks in place, strip the waste, and cycle constantly as an integral part of the die stripping cycle. Both methods increase productivity, but what about other blank media? Thin metallic sections won't always catch on the hooks of a chain, nor will they subscribe easily to the plate methodology. In these specialized cases, the stripping units add stripper pads and other quick-cycling parts to the gear, parts that improve surface contact between the stripper armature and the lingering scrap, even if that excess material is a sharp-edged sliver of glossy metal.

Stripper units work by complementing die cutters, by working at their best while the cutting process is underway. They discharge excess materials, as left behind by a primary cut, and eject that waste so that the cutting station will work unimpeded.

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