Plastic Profile End Machining with Outer Web Stabilization
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Solution Overview
Problem
Conventional devices fail to achieve precise machining in the end region of plastic profiles used for door or window frames due to dimensional tolerances and material properties, leading to unclean profile surfaces and inefficiencies in processing.
Innovation Solution
A device with a holding device featuring a connecting element that interacts with the outer profile web, providing precise fixation and support, allowing for accurate machining of the end region by ensuring the outer profile web remains stable during processing, and enabling simultaneous machining of multiple profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional fixtures are used to fix plastic profiles, then the profiles can be held during processing, but precise machining in the end area cannot be achieved due to dimensional tolerances and material properties
Solution Approach 1:
The holding device is divided into multiple independent connecting elements (at least two) that can be positioned at different locations along the outer profile web. This segmentation allows each connecting element to independently secure the profile at critical points, providing stable fixation without requiring the entire profile to be rigidly constrained, thus enabling precise machining while maintaining profile stability.
Solution Approach 2:
The connecting elements are designed to interact specifically with the outer profile web at localized positions, providing holding force exactly where needed for machining stability. This localised fixation approach ensures the end region remains stable during machining without compromising the overall profile structure, resolving the contradiction between machining precision and profile stability.
2Stability of the object's composition
If the profile is securely fixed during machining, then processing stability is improved, but the outer profile web may become destabilized when inner profile webs are removed
Solution Approach 1:
The holding device with connecting elements is positioned and engaged with the outer profile web before the machining process begins. This preliminary fixation ensures that when the inner profile webs are subsequently removed during machining, the outer profile web remains stabilized by the pre-positioned connecting elements, preventing destabilization and maintaining manufacturing precision throughout the process.
3Measurement precision
If conventional holding devices are used, then profiles can be held during processing, but precise positioning and alignment of the mitered surfaces cannot be achieved
Solution Approach 1:
The holding device with multiple connecting elements serves multiple functions simultaneously: it positions the profile accurately, aligns the outer profile web, and provides stable fixation during machining. This multi-functionality achieves precise positioning without requiring separate complex positioning mechanisms, thereby improving measurement precision while avoiding excessive device complexity.
Data Source
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AI summary
The invention relates to a device for processing the end area of a plastic profile, in particular a profile for the manufacture of a door or window frame, wherein the device has a support surface for the profile and a holding device for the profile.