Lamination Molding Table Thermal Displacement Control
Solution Overview
Problem
In lamination molding, temperature adjustments of the molding table lead to thermal displacement between the table and its driver, reducing the accuracy of the molding process.
Innovation Solution
A lamination molding apparatus with a temperature-adjusting unit having a heater and a cooler stacked vertically, fixed to the molding table driver at a single point by a chuck, minimizing displacement during heating and cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the molding table temperature is adjusted during lamination molding, then the material layer can be preheated to improve molding quality, but thermal displacement occurs between the molding table and driver, reducing positioning accuracy
Solution Approach 1:
A temperature adjusting unit with heating and cooling units is introduced as an intermediary component between the molding table and its driver. This unit can be detached and reattached to different positions on the driver, allowing temperature control while minimizing thermal displacement effects on positioning accuracy.
Solution Approach 2:
The temperature adjusting unit is designed to be movable and reconfigurable, allowing it to be detached and reattached to various positions on the driver according to the specific molding requirements. This dynamic adjustment capability enables optimization of both temperature control effectiveness and positioning accuracy.
2Reliability
If multiple fixing points are used to attach the temperature adjusting unit to the molding table driver, then the unit can be securely fixed, but displacement occurs during thermal expansion and contraction, reducing molding accuracy
Solution Approach 1:
Instead of uniformly distributing fixing points across the temperature adjusting unit, the invention selectively positions fixing points at specific locations that minimize thermal displacement impact. The unit can be fixed at one or more optimally chosen positions depending on the molding requirements, allowing secure attachment while maintaining molding accuracy.
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
This configuration ensures highly accurate molding by maintaining the starting point of expansion and contraction at a single fixing point, preventing displacement and enhancing the precision of the lamination process.
Implementation Method 1
a temperature adjusting unit having a heating unit with a heater
Implementation Method 2
a cooling unit with a cooler
Implementation Method 3
a positional shift due to thermal displacement occurs between the molding table and a molding table driver
Data Source
AI summary
A lamination molding apparatus includes a molding table, a molding table driver, and a chuck. The molding table includes a molding region and a temperature adjusting unit. In the molding region, a desired three-dimensional molded object is formed. The temperature adjusting unit has a heating unit with a heater, and a cooling unit with a cooler. The heating unit and the cooling unit are arranged to be stacked in a vertical direction. The molding table driver moves the molding table in the vertical direction. The chuck detachably fixes the temperature adjusting unit to the molding table driver at one fixing point.