Mold Strength Measuring Device Using Bottomed Hole Access
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Solution Overview
Problem
Existing mold strength measuring devices are unable to effectively assess the internal strength of molds before they are drawn, leading to potential collapse or distortion during the drawing process.
Innovation Solution
A mold strength measuring device that uses a cutting tool to form a bottomed hole from the back surface to the product surface within the mold, allowing a measurement probe to insert and measure the reaction force from the hole's bottom, providing internal strength information before the mold is drawn.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a measuring needle is inserted into the surface of the mold to measure strength, then surface strength can be measured, but internal strength cannot be measured
Solution Approach 1:
The measurement system is segmented into two distinct components: a cutting tool that creates access holes in the mold, and a measurement probe that measures strength through these holes. This segmentation allows the measurement function to access internal regions of the mold that were previously unreachable, while maintaining the capability for surface measurements.
Solution Approach 2:
Bottomed holes created by the cutting tool serve as intermediaries that allow the measurement probe to access and measure internal strength of the mold. These holes provide a pathway for the probe to reach internal regions without requiring direct access to the mold interior, thus enabling internal strength measurement while preserving mold integrity.
2Productivity
If the mold is drawn from a pattern before sufficient hardening, then productivity is improved, but the mold may collapse or distort
Solution Approach 1:
The strength measurement is performed before the mold is drawn from the pattern, allowing the internal strength to be assessed in advance. This preliminary assessment provides critical information that determines whether the mold is ready for drawing, preventing premature drawing that could cause collapse or distortion while enabling timely drawing when strength is sufficient.
Solution Approach 2:
The measurement probe provides feedback on the internal strength of the mold by measuring the reaction force when pressed against the bottom of the hole. This feedback information is used to determine whether the mold has achieved sufficient hardening, allowing the drawing process to be controlled based on actual strength conditions rather than fixed time schedules.
3Measurement precision
If a cutting tool forms a hole in the mold and a measurement probe measures reaction force, then internal strength can be measured, but device complexity increases
Solution Approach 1:
The measurement probe is designed with multi-functionality, serving both as a measurement instrument and as a pressing member that applies force to the mold bottom. The lifting device also performs dual functions by moving both the cutting tool and measurement probe. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity.
Solution Approach 2:
The cutting tool and measurement probe are combined into a single integrated measurement system that can perform both hole formation and strength measurement operations. The lifting device merges the movement control of both tools, and the rotating shaft integrates their positioning. This merging approach consolidates multiple functions into fewer components, managing overall system complexity.
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
Enables accurate assessment of internal mold strength, preventing collapse or distortion by determining if the mold meets a predetermined threshold value, and allowing for adjustments in hardening agent or binder addition to ensure sufficient strength.
Implementation Method 1
The measurement probe inserted into the hole to measure a reaction force received from a bottom of the hole
Data Source
AI summary
A mold strength measuring device according to an aspect obtains information about strength of a mold having a product surface and a back surface opposite to the product surface. The mold strength measuring device comprising a cutting tool and a measurement probe. The cutting tool form a bottomed hole extending from the back surface toward the product surface in the mold. The measurement probe to be inserted into the hole to measure a reaction force received from a bottom of the hole.