Segmented Melting Heater for Selective Resin Joining
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Solution Overview
Problem
Existing melting heaters for resin semi-molded products heat not only the joining end surfaces but also other portions, leading to inefficient and non-selective heating.
Innovation Solution
A melting heater comprising a plurality of pair heaters, each consisting of two adjacent element heaters connected in series at one end and spaced apart at the other end for connection to a power supply, allowing selective heating of the joining end surfaces through masking treatment on glass plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a carbon heater or halogen heater is processed into a flat plate shape for general-purpose use, then the melting heater can be used for multiple types of molded products, but portions other than the joining end surface are also heated and swung
Solution Approach 1:
The heater is divided into multiple independent heating elements (first heating element, second heating element, third heating element, fourth heating element) arranged in a matrix pattern. Each element can be independently controlled to heat only specific regions, enabling selective heating of joining end surfaces while avoiding heating of other portions. This segmentation allows the single heater structure to adapt to different joining configurations.
Solution Approach 2:
Different regions of the heater have different heating characteristics through the matrix arrangement of heating elements. By activating specific elements (e.g., only first and second elements or only third and fourth elements), the heater provides localized heating quality matched to the specific joining requirement, achieving both versatility and selectivity.
2Productivity
If a melting heater is shaped to fit the joining end surface for efficient melting, then the joining end surfaces can be efficiently melted, but the melting heater needs to be prepared for each type of molded product
Solution Approach 1:
The heater structure with multiple independently controllable heating elements in a matrix arrangement serves multiple functions. The same heater can be configured to heat different regions by activating different elements, making it universal for various joining configurations without requiring separate custom-shaped heaters for each product type.
Solution Approach 2:
The heater transitions from a static, fixed-configuration design to a dynamic, selectively activatable design. By controlling which heating elements are activated based on the specific joining requirement, the heater adapts its heating pattern dynamically, maintaining high melting efficiency across different applications without physical reconfiguration.
3Manufacturing precision
If a flat plate shaped melting heater is swung between semi-molded products, then the joining end surfaces can be uniformly melted, but portions other than the joining end surface are also heated
Solution Approach 1:
The heating function is segmented into multiple independent elements, allowing only the necessary elements to be activated during each operation. This prevents energy waste on portions that do not require heating while maintaining uniform melting of the joining end surfaces through coordinated activation of relevant elements.
Solution Approach 2:
Instead of activating all heating elements or using a single large heater, only the specific elements needed for the current joining operation are activated. This partial action approach provides sufficient heating uniformity for the joining surfaces while avoiding excessive heating of other portions, reducing energy loss.
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 enables selective heating and melting of the joining end surfaces without heating other portions, improving the efficiency and versatility of the melting process.
Implementation Method 1
The plurality of element heaters 28 are arranged in parallel to each other in the frame body 27
Implementation Method 2
masking treatment on glass plates
Data Source
AI summary
A melting heater configured to melt joining end surfaces of a pair of semi-molded products in a case where the joining end surfaces are melted and joined to manufacture a molded product, the melting heater including: a plurality of element heaters arranged in a unit having a flat plate shape, wherein the plurality of element heaters comprises a plurality of pair heaters, each pair heater being two adjacent element heaters of the plurality of element heaters, and wherein each pair heater includes: a first end portion in which first ends of the adjacent two of the plurality of element heaters are connected to each other so as to be connected in series; and a second end portion in which second ends of the adjacent two of the plurality of element heaters are spaced apart and connected to a power supply.