Nip Type Anti-wrinkle
Nip Type (each edge of the web) Spreader Roll Description:
Nip type spreader rolls are normally short face rolls (less than 12" face) and small diameter (less than 3" diameter). These rolls are supplied in a left and right hand set. Each set consists of 2 rolls pre-loaded so each roll face is pressed together; these roll faces must be parallel with each other. Each roll set is very similar in design to other nip rolls used in converting (such as drive nips). One of the rolls in each set must be rubber covered (for traction); sometimes both rolls in the set are rubber covered.
Theory of operation:
This type of spreader roll has no wrap angle. Because the web is not supported across its full width, the material must be fed straight in and out of this spreader roll assembly.
Written By: Jeffrey Damour, Sales Manager, Converter Accessory Corporation, Wind Gap, PA
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