Cutting device and cutting method
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Solution Overview
Problem
Cutting devices for fiber webs face challenges in maintaining cutting accuracy due to the soft and uncompressed nature of the webs, which causes shifting during the cutting process.
Innovation Solution
A cutting device equipped with a cutter and movable needles that stick into the web to hold it in place during cutting, ensuring precise cutting by restricting positional deviation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the web is left uncompressed and soft for easy handling, then the web is easy to transport, but the web shifts easily during cutting which degrades cutting accuracy
Solution Approach 1:
The needle is positioned in advance at the cutting location and penetrates the web before the cutter arrives, establishing a fixed reference point and preventing web shift during the cutting operation
Solution Approach 2:
The needle acts as an intermediary element between the web and the cutter, providing a stable anchor point that mediates the interaction between the soft web and the cutting blade, preventing direct unwanted movement
Data Source
AI summary
A cutting device configured to be disposed on a transportation path along which a web including at least accumulated fibers is transported includes: a cutter configured to cut the web; and a movable needle configured to stick into the web to hold the web when the web is cut.