Laser Corner Cleaning for Plastic Profile Welds
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Solution Overview
Problem
Existing corner cleaning devices are unable to satisfactorily process the connection area of seals during the welding of profile bars, particularly due to the elastic nature of the seals which are often damaged or evade processing tools.
Innovation Solution
A pneumatic side cutter is used as the machining tool, which is motor-driven and movable in multiple directions, allowing precise positioning and adaptation to different seal shapes and sizes, enabling automatic processing of corner connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional corner cleaning devices with cutting or milling tools are used, then the welding beads can be removed, but the elastic seals are damaged or evade the processing tools
Solution Approach 1:
The patent replaces conventional mechanical cutting or milling tools with a laser processing tool. The laser beam processes the weld beads and excess seal material through thermal melting and vaporization rather than mechanical contact, thereby eliminating the damage and evasion problems associated with mechanical tools while maintaining high processing precision
Solution Approach 2:
The patent changes the physical state and properties of the processing tool by using a laser beam with specific wavelength, power, and focal parameters. By adjusting these parameters, the laser can precisely control the heating and melting process of the seal material without causing damage, achieving both high processing quality and seal integrity
2Reliability
If profile bars with pre-installed seals are welded, then the sealing function is ensured, but overhang and weld beads occur in the seal area that cannot be processed satisfactorily
Solution Approach 1:
The patent uses laser processing instead of mechanical tools to remove weld beads and overhang from profile bars with pre-installed seals. The laser's non-contact thermal processing capability allows precise removal of excess material without damaging the elastic seals, thereby maintaining both the sealing function and corner processing quality
Solution Approach 2:
The patent employs a movable laser processing tool that can dynamically adjust its position and focal point to follow the contour of the seal and profile bar corner. This dynamic positioning system allows the laser to precisely process weld beads and overhang while adapting to the specific geometry of different seal types and positions
3Adaptability or versatility
If manual corner cleaning is performed, then flexibility in handling different seal types is achieved, but productivity is reduced and quality consistency is poor
Solution Approach 1:
The patent implements an automated laser processing system with programmable control that can automatically adapt to different seal types and positions. The system uses pre-programmed processing parameters and automatic positioning to handle various seal configurations without manual intervention, thereby achieving both high productivity and consistent quality across different seal types
Solution Approach 2:
The patent designs a universal laser processing system that can handle multiple types of seals and profile bar configurations through programmable control and adjustable parameters. The same laser tool can process different seal materials, shapes, and positions by changing processing parameters, eliminating the need for multiple specialized tools while maintaining high productivity and adaptability
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 allows for precise and effective removal of weld beads and excess seal material, accommodating various seal types and shapes, including convex cuts, thereby improving the quality of corner processing.
Implementation Method 1
at least one laser for heating and melting the plastic
Implementation Method 2
heating and melting the plastic with the laser
Implementation Method 3
a compressed air stream directed towards the corner joint in order to blow away plastic which has been melted with the laser
Data Source
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AI summary
The device has a cutting tool (9) for cutting a corner part (1) of a frame that is welded with profiled bars (2, 3) i.e. plastic profiled bars. The cutting tool is driven in pneumatic or hydraulic or electrical manner. The cutting tool is movably arranged relative to a receiver of the cornet part, where the receiver is defined by a stop part (8). The cutting tool is movable from resting position to cutting position. A control device (10) controls positioning and processing functions of the cutting tool based on position, form, size and/or type of the welded bars. The cutting tool is selected from one of scissors, separation pliers (12), pneumatic side cutter, chisels, milling cutters and scrapers.