Die Casting Melt Leakage Detection via Mechanical Wire Breaking
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Solution Overview
Problem
Die casting machines often experience melt leakage due to operator misoperation or foreign matter, leading to safety hazards and equipment damage, as existing detection devices are inadequate in timely detection.
Innovation Solution
A die casting machine melt leakage detecting device comprising a high-temperature resistant pulling wire, wire winding columns, a wire fixing member, an elastic wire connecting member, and a trigger switch, where the pulling wire is arranged around the mold, tensioned, and designed to break upon contact with molten metal, triggering the elastic wire connecting member to impact a switch and send a signal for immediate depressurization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrodes or wires are used to detect melt leakage through short circuiting, then detection capability is provided, but device complexity and safety risks increase
Solution Approach 1:
The patent extracts the detection function from complex electrical sensing systems and implements it through a simple mechanical wire-breaking mechanism. The pulling wire is positioned to break when molten metal leaks, triggering a switch that activates the detection signal, thereby eliminating the need for complex electrode arrangements and electrical short-circuiting systems.
Solution Approach 2:
The patent employs a disposable pulling wire that is intentionally designed to break under specific conditions (when molten metal contacts it). This simple, low-cost wire serves as a single-use detection element that triggers the safety mechanism upon failure, replacing expensive and complex electrical sensing systems.
2Reliability
If melt leakage detection is implemented, then safety and property protection are improved, but response time may be delayed
Solution Approach 1:
The pulling wire is pre-positioned in the path where molten metal would leak, and the elastic wire connecting member is pre-loaded in a compressed state. When leakage occurs, the wire breaks immediately and the pre-compressed elastic member instantly triggers the switch, eliminating detection delays and enabling immediate safety response.
Solution Approach 2:
The patent uses a direct mechanical trigger mechanism where the broken pulling wire immediately releases the elastic wire connecting member, which rushes to close the circuit and activate the alarm. This skips intermediate sensing and processing steps, achieving the fastest possible response time from leakage detection to safety activation.
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 timely detection of melt leakage, improving operator safety and reducing property losses by immediately stopping the die casting machine and preventing further damage.
Implementation Method 1
the pulling wire can withstand the temperature outside a mold during normal die casting, and is melted and broken after making contact with molten metal
Implementation Method 2
the elastic wire connecting member is in a compressed or stretched state when the pulling wire is kept tensioned in the operating state, and the elastic wire connecting member is restored to its original position and impacts the trigger switch when the pulling wire is broken
Data Source
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AI summary
The present disclosure relates to the technical field of safety detection of die casting machines, in particular to a die casting machine melt leakage detecting device. The device comprises a pulling wire, a plurality of wire winding columns, a wire fixing member, an elastic wire connecting member and a trigger switch. The pulling wire can withstand the temperature outside a mold during normal die casting and is melted and broken after making contact with molten metal. The multiple wire winding columns are arranged around the mold, one end of the pulling wire is connected with the wire fixing member, and the other end of the pulling wire is sequentially wound around the wire winding columns and then is connected with the elastic wire connecting member. The elastic wire connecting member is opposite to the trigger switch, the elastic wire connecting member is in a compressed or stretched state when the pulling wire is kept tensioned in the operating state, and the elastic wire connecting member is restored to its original position and impacts the trigger switch when the pulling wire is broken. The trigger switch is used for transmitting an impacting signal to a signal receiving end of a die casting machine. According to the die casting machine melt leakage detecting device, the melt leakage phenomenon can be determined when the elastic wire connecting member impacts the trigger switch, thus, operators can conveniently know the occurrence of the melt leakage phenomenon in time, then property losses are avoided, and the operation safety is improved. (Fig. 1)