Core Setting Jig and Carriage for Molding Machine Accuracy
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Solution Overview
Problem
Conventional molding machines that use a match plate to set cores in upper and lower molds face complexity in configuration and accuracy issues due to the need for the lower flask to move back and forth, often resulting in inaccurate core placement as it is elevated outside the machine.
Innovation Solution
An apparatus and method that utilize an upper and lower flask with a match plate clamped between them, featuring a jig for holding the core and a rotary shaft, along with an actuator to elevate the match plate and carriage, allowing the core to be set within the machine with high accuracy by rotating the jig to face downward and lowering it to nearly abut the lower mold, ensuring precise placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lower flask is configured to move back and forth for core setting, then the core can be set outside the machine, but the machine configuration becomes complicated and core-setting accuracy deteriorates
Solution Approach 1:
The invention extracts the core setting operation from the lower flask transport mechanism. Instead of moving the lower flask outside the machine for core setting, the core setting function is separated and performed by a dedicated core setter mechanism that operates within the machine, thereby simplifying the overall machine configuration while maintaining core setting capability
Solution Approach 2:
The invention introduces a carriage as an intermediary carrier for the core. The carriage holds the core and transports it to the molding station, serving as a mediator between the core setter and the lower mold. This eliminates the need for complex lower flask transport mechanisms while ensuring accurate core placement
2Ease of operation
If the lower flask is transported outside the machine for core setting, then the core can be set, but the core-setting accuracy is not maintained due to cantilever elevation
Solution Approach 1:
The invention extracts the core setting operation from the lower flask transport process. The core is set by a dedicated core setter mechanism that operates independently of the lower flask movement, eliminating the cantilever elevation issue and ensuring high core-setting accuracy within the machine
Solution Approach 2:
The invention uses a carriage that replicates the positioning functionality of the lower flask transport mechanism but in a simplified form. The carriage carries the core with high precision to the molding station, copying the essential function without the complexity and accuracy problems of transporting the entire lower flask outside the machine
Data Source
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AI summary
The object of the invention is to provide an apparatus for setting a core, a molding machine, and a method for setting a core where the configuration of the apparatus and the machine is simplified and the accuracy of the core-setting is high. The apparatus is one for setting a core in a molding machine that comprises an upper flask, a lower flask, a match plate clamped between the upper flask and the lower flask, and an upper and a lower squeezing member for forming molding spaces by having the upper and lower squeezing members be inserted into the upper and lower flasks, respectively, wherein a core is set in the lower mold in a state that the upper mold, the lower mold, and the match plate are separate from each other, the apparatus comprising: a jig for a core having a means for holding a core and a rotary shaft and being rotatably supported by the rotary shaft wherein the means for holding a core detachably holds the core at the jig; and a carriage for a core for rotatably supporting the rotary shaft of the jig and being transported to and from a position above the lower mold; wherein an actuator for elevating the match plate transported between the upper flask and lower flask elevates the jig for the core and the carriage for the core that are transported to a position above the lower mold, which actuator is attached to the molding machine.