Casting Die Lower Mold Stage Guide Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The lower mold in casting machines experiences thermal expansion, leading to warping and potential inclination of the horizontal sliding mold due to uneven surfaces, necessitating frequent replacement of the lower mold.
Innovation Solution
A casting die design featuring a lower mold composed of a body and stage with a guide member that freely moves vertically and locks with the lateral edge of the lower mold body, allowing the horizontal sliding mold to slide on this guide member, thus maintaining a level surface and preventing inclination, and adjustable spacers to manage deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the lower mold is configured as a single integrated piece, then the structure is simple and easy to manufacture, but the lower mold warps due to thermal expansion from the molten metal furnace
Solution Approach 1:
The lower mold is divided into two separate components: the lower mold body and the lower mold stage. The lower mold body contains the cavity and core components, while the lower mold stage is a separate support structure that can be replaced independently when warped, allowing the expensive mold body to be preserved
Solution Approach 2:
The lower mold stage is extracted as a separate replaceable component from the lower mold body. This allows the warping issue to be isolated to the stage component only, which can be discarded and replaced without affecting the mold body
2Stability of the object's composition
If the lower mold body is separated from the lower mold stage to prevent warping, then the lower mold body does not warp, but the lower mold body floats up due to the warped stage
Solution Approach 1:
Guide members are introduced as intermediary components between the lower mold body and lower mold stage. These guide members maintain proper positioning and prevent the mold body from floating up, even when the stage is warped or replaced
Solution Approach 2:
The guide members are positioned at specific locations to provide localized support and positioning, ensuring that only the necessary areas are constrained while allowing the rest of the structure to accommodate thermal expansion
3Device complexity
If the horizontal sliding mold is positioned by abutting to the lower mold, then positioning is simple, but the horizontal sliding mold inclines when the lower mold body floats up
Solution Approach 1:
The guide members serve as intermediary positioning elements between the lower mold body and horizontal sliding mold. They provide a stable reference surface for positioning the sliding mold, preventing inclination even when the mold body floats up due to stage warping
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 allows for prolonged use of the lower mold stage by compensating for thermal expansion-induced warping, preventing horizontal sliding mold inclination and enabling easy adjustment to maintain a smooth sliding surface without frequent mold replacements.
Implementation Method 1
the inside of the casting machine easily becomes high temperature at the lower side where the molten metal furnace is arranged, and accordingly, the temperature of the lower mold tends to become high. As such, it is concerned that the lower mold expands by thermal expansion, and a center section of the lower mold, which is the closest part to the molten metal furnace, warps toward the upper side.
Data Source
AI summary
Provided is a casting die 1 including a base 3, a lower mold 4, a horizontal sliding mold 5, and an upper mold 6. The lower mold 4 is configured by a lower mold body 10 and a lower mold stage 11. A guide member 17 is mounted on the lower mold stage 11 so as to freely move in the up and down direction with respect to the lower mold stage 11. The horizontal sliding mold 5 is configured to slide on the guide member 17 and the lower mold body 10. The guide member 17 is provided with a locking part 17a which locks with a lateral edge part of the lower mold body 10 when the lower mold body 10 is separated upward from the lower mold stage 11, so that the lower mold body 10 and the guide member 17 separate upward together.