Mold production apparatus and mold production method

By separating the driving forces and positioning equipment above the cast iron frame, the mold molding machine addresses the need for a deep pit, lowering costs and enhancing maintenance efficiency and power usage.

WO2026140349A1PCT designated stage Publication Date: 2026-07-02METAL ENG

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
METAL ENG
Filing Date
2025-08-22
Publication Date
2026-07-02

AI Technical Summary

Technical Problem

Existing mold molding machines require a deep pit below the squeeze table to accommodate lifting and downward stroke restricting devices, leading to increased equipment costs, decreased work efficiency, and higher maintenance man-hours.

Method used

The design separates the generation of large driving force for squeezing and small force for raising the squeeze table, positions all large-scale equipment above the cast iron frame, and uses a pressure transmission unit to switch between moving force and pressure, eliminating the need for a deep pit.

Benefits of technology

This approach reduces equipment costs during installation and improves maintenance efficiency by minimizing the need for a deep pit, while also reducing power consumption and cycle time.

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    Figure JP2025029457_02072026_PF_FP_ABST
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Abstract

Provided is a mold production apparatus that generates, separately, a large pressure required for squeezing and a small force for moving a pressure-applying unit to a compression start position, and that does not require a deep pit. This apparatus produces a mold by compressing casting sand, and comprises: a pressure-applying unit which is in contact with the casting sand; a squeeze table which is fixed to a base and on which a molding flask is placed; a pressure application drive device which causes the pressure-applying unit to generate pressure; a lifting / lowering device which lifts and lowers the pressure-applying unit; a lifting / lowering drive device which moves the pressure-applying unit from a standby position to a compression start position; and a pressure transmission unit which selectively transmits the pressure from the pressure application drive device and the force from the lifting / lowering drive device.
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