Resin Profile Joining with Guided Burr Suppression
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Solution Overview
Problem
Existing resin profile joining methods result in burr formation, requiring manual post-processing and reducing productivity, and cause white streaky shear surfaces, affecting appearance quality.
Innovation Solution
A method involving clamping resin profiles to face each other, heating without contact, and crimping while guiding with mold units to suppress burr formation, improving productivity and appearance quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cutter blades are used to cut burrs during resin profile joining, then burr removal is achieved, but productivity decreases due to manual post-processing and cleaning requirements
Solution Approach 1:
The patent converts the harmful effect of burr generation into a beneficial process feature by designing the heater plate to melt resin in a controlled manner during the joining process. The heater plate not only heats the resin profiles for fusion bonding but simultaneously melts and redistributes the resin to prevent burr formation, transforming what would be a harmful byproduct into part of the useful joining process
Solution Approach 2:
The heater plate serves as an intermediary element that performs dual functions: it provides the necessary heat for resin profile fusion bonding while also acting as a burr suppression mechanism. By positioning the heater plate to contact or closely approach the resin profiles, it mediates between the joining requirement and the burr prevention requirement, eliminating the need for separate burr removal operations
2Object-generated harmful factors
If cutter blades are used to remove burrs, then burr removal is achieved, but appearance quality deteriorates due to white streaky shear surfaces
Solution Approach 1:
The heater plate transforms the potentially harmful cutting action into a beneficial melting and smoothing process. Instead of shearing the resin with cutter blades that create white streaks, the heated plate gently melts and redistributes the resin material, eliminating burrs while maintaining surface integrity and appearance quality
Solution Approach 2:
The patent replaces the mechanical cutting system (cutter blades) with a thermal processing system (heater plate). The thermal energy from the heater plate substitutes for mechanical removal, melting and reshaping the resin to eliminate burrs without the harmful mechanical shear forces that cause white streaky surfaces
3Strength
If heater plate is used for heating resin profiles, then fusion bonding is achieved, but burr formation occurs on the surface
Solution Approach 1:
The heater plate is designed with specific local characteristics: it has a predetermined shape that matches the profile being heated, and its heating surface is positioned at a controlled distance from the resin profile surface. This local quality control ensures that heat is applied precisely where needed for bonding while preventing excessive resin flow that would create burrs
Solution Approach 2:
The patent controls the heating parameters by adjusting the distance between the heater plate and resin profile, as well as the heating duration and temperature. By optimizing these parameters, the resin melts sufficiently for strong bonding but does not overflow to form burrs, achieving a balance between bond strength and surface quality
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
Suppresses burr generation, eliminates manual post-processing, and enhances appearance quality by maintaining high fusion-bonded strength and uniformity.
Implementation Method 1
heating the end surfaces of the pair of resin profiles in no contact with the end surfaces of the pair of resin profiles to melt the pair of resin profiles
Implementation Method 2
making a guide in contact with surfaces of the pair of resin profiles so as to cover between the end surfaces of the pair of resin profiles after the heating
Data Source
AI summary
Provided is a resin profile joining method of joining a pair of resin profiles. The method includes: holding one resin profile and another resin profile of the pair of resin profiles with a first clamp and a second clamp, respectively, such that end surfaces of the pair of resin profiles are faced each other; heating the end surfaces of the pair of resin profiles in no contact with the end surfaces of the pair of resin profiles to melt the pair of resin profiles; making a guide in contact with surfaces of the pair of resin profiles so as to cover between the end surfaces of the pair of resin profiles after the heating; and crimping the end surfaces of the pair of resin profiles to each other while keeping the guide in contact with the surfaces of the pair of resin profiles.