Die Casting Machine Pushing Force Variable Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In semi-hot chamber type die casting machines, the impact applied to the connection portion between the sleeve and the molten metal supply pipe during plunger injection can lead to breakage of the molten metal supply pipe.
Innovation Solution
A die casting machine with a pushing force variable mechanism that reduces the pushing force of the molten metal supply pipe against the sleeve when the plunger is sliding, using an actuator to control the force applied, and a molten metal supply pipe made of ceramics with a cylindrical shape extending in a linear fashion, which is fixed to the holding furnace or movable relative to it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the molten metal supply pipe is pushed against the sleeve to cover the molten metal supply port, then the molten metal can be supplied into the sleeve, but the impact applied to the connection portion during plunger injection may break the pipe
Solution Approach 1:
The pushing force of the molten metal supply pipe against the sleeve is dynamically changed based on the plunger position. When the plunger slides, the pushing force is reduced to minimize impact. This parameter change resolves the contradiction by adjusting the mechanical force parameter to prevent breakage while maintaining molten metal supply functionality.
Solution Approach 2:
The molten metal supply pipe is made movable relative to the sleeve rather than being fixed, allowing it to dynamically adjust its position and pushing force. This dynamic configuration enables the pipe to reduce impact during plunger injection while maintaining contact for molten metal supply, resolving the contradiction between reliability and strength.
2Ease of operation
If the molten metal supply pipe is made movable relative to the holding furnace with independent force control, then the pushing force can be precisely controlled, but the device complexity increases
Solution Approach 1:
A control mechanism is introduced that monitors the plunger position and automatically adjusts the pushing force of the molten metal supply pipe accordingly. This feedback-based control enables precise force management during injection while simplifying operation, resolving the contradiction between ease of operation and device complexity through automated control.
Data Source
AI summary
A die casting machine of an embodiment includes: a holding furnace holding molten metal; a sleeve located outside the holding furnace and having a molten metal supply port passing through a mold; a plunger sliding through the sleeve and including a plunger rod and a plunger tip fixed to a tip of the plunger rod; a molten metal supply pipe pushed against the sleeve to cover the molten metal supply port and supplying the molten metal into the sleeve; and a pushing force variable mechanism reducing a pushing force for the sleeve in the molten metal supply pipe when the plunger is sliding.