Edge Processing Roller Captures Drawing Chips
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Solution Overview
Problem
In edge processing devices, uncontrolled drawing chips often get caught in the machinery, leading to blockages and damage, particularly when polishing units are used after scraper blades remove edge strips from workpieces.
Innovation Solution
An edge processing device with a roller positioned downstream of the scraper unit, creating a frictional connection with the polishing wheel to securely capture and remove the drawing chip, preventing uncontrolled hanging and ensuring controlled removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a scraper device is used to remove excess edge strip material, then the edge strip is properly trimmed, but drawing chips are generated that hang uncontrollably and can cause blockages
Solution Approach 1:
The harmful drawing chips are extracted from the uncontrolled hanging state by capturing them between the roller and polishing wheel, separating the chip removal function from the edge trimming function to prevent blockages
Solution Approach 2:
The drawing chips that were previously harmful and causing blockages are now beneficially used to create friction between the roller and polishing wheel, enabling controlled chip removal and preventing the original harmful effect
2Manufacturing precision
If polishing wheels are positioned after the drawing unit, then the edge strip is polished, but drawing chips wrap around the polishing wheel rotational axes and block them
Solution Approach 1:
The roller acts as an intermediary element between the drawing unit and polishing wheel, capturing drawing chips before they can wrap around and block the polishing wheel rotational axes
Solution Approach 2:
The roller performs preliminary action by capturing and controlling drawing chips before they reach the polishing wheel area, preventing the chips from wrapping around and blocking the rotational axes
3Productivity
If drawing chips are shredded immediately after drawing, then chip accumulation is reduced, but long chips can still become caught in the device
Solution Approach 1:
The long drawing chips that were previously harmful and causing entanglement are now beneficially used to create controlled friction between the roller and polishing wheel, enabling systematic chip removal without entanglement
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 chip-related blockages and damage by securely guiding and removing the drawing chip, ensuring smooth operation of the edge processing device.
Implementation Method 1
The roller 9 is arranged so close to the polishing wheel 21, 22 that a frictional connection is exerted on a drawing chip generated by the scraper device and reaching the area between the at least one polishing wheel and the roller
Data Source
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AI summary
The invention relates to an edge-working apparatus (1) which is intended for edging the narrow sides of planar workpieces (5) made of wood or wood substitutes having an edge strip (7). The edge-working apparatus (1) comprises a polishing unit (2), having at least one polishing disc (21, 22) and a scraper device (3) which is arranged upstream of the polishing unit (2) in the working direction (X) and has at least one scraper (31, 32) for machining of the edge strip (7) applied to the workpiece (5). The edge-working apparatus (1) also comprises at least one roller (9), which is arranged downstream of the scraper unit (3) in the working direction (X) and is arranged so tightly against the polishing disc that a frictional grip is exerted on scrapings (8) which have reached the region between the at least one polishing disc (21, 22) and the roller (9) and are produced by the scraper blade unit (3).