Cutting Apparatus Scrap Removal via Movable Guide and Air Blowing
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Solution Overview
Problem
Cutting scrap generated during the cutting of sheets can adhere to guide members in cutting apparatuses, leading to contamination of subsequent sheet bundles and degradation of product quality due to foreign substances being mixed with the product.
Innovation Solution
A cutting apparatus with a movable guide member that blocks or allows the scrap path and an air blowing unit to direct air along the guide member, preventing cutting scrap from adhering to surfaces and ensuring it is blown into the scrap path, thereby maintaining product quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a guide member is used to guide the sheet, then the sheet can be conveyed smoothly, but cutting scrap adheres to the guide member and contaminates subsequent sheets
Solution Approach 1:
The harmful factor (cutting scrap) is extracted from the sheet conveyance path by directing it into a separate scrap discharge path through the movable guide member, preventing scrap from adhering to guide members and contaminating subsequent sheets
Solution Approach 2:
The guide member is made movable between a first position (blocking scrap path) and a second position (allowing scrap entry) to dynamically control scrap discharge timing, enabling scrap removal without affecting sheet conveyance
2Ease of manufacture
If cutting scrap is allowed to fall freely, then scrap collection is simple, but scrap disperses and mixes with subsequent sheet bundles
Solution Approach 1:
A movable guide member acts as an intermediary between the cutting region and scrap discharge path, controlling scrap flow to prevent dispersion while maintaining simple scrap collection through gravity
Solution Approach 2:
An air blowing unit is introduced to actively direct cutting scrap into the scrap discharge path using air flow, ensuring scrap is reliably directed without dispersing onto the sheet conveyance path
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents cutting scrap from adhering to guide members and ensures it is directed into the scrap path, reducing contamination and maintaining product quality by ensuring cutting scrap is not mixed with subsequent sheet bundles.
Implementation Method 1
a blowing unit configured to blow air such that the air crosses the sheet conveyance path from a side opposite the scrap path, wherein the blowing unit blows air such that the air flows along the guide member at the second position into the scrap path
Data Source
AI summary
A cutting apparatus includes a blade configured to cut a sheet that is conveyed along a sheet conveyance path, a scrap path through which scrap generated when the sheet is cut by the blade passes, a guide member configured to guide the sheet conveyed, and a blowing unit configured to blow air such that the air crosses the sheet conveyance path from a side opposite the scrap path with the sheet conveyance path therebetween, wherein the blowing unit blows air such that the air flows along the guide member positioned at a second position at which the scrap is allowed to enter the scrap path.