Casting Mold Air Supply Flow Path for Core Groove Burr Removal
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Solution Overview
Problem
Existing casting molds face difficulties in removing burrs from the deep portions of cores without moving the cores forward and backward, as air blowing is inefficient due to the formation of narrow gaps between closely arranged cores, leading to potential inclusion of burrs in cast products.
Innovation Solution
A casting mold design that includes a movable mold with a core protruding from the mold body, featuring a groove portion that opens in one direction and is recessed in the opposite direction, equipped with an air supply flow path to direct air to the bottom of the groove, allowing for effective air blowing without moving the core.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air blowing is performed to remove burrs from the core, then burrs can be removed from the surface of the core, but air cannot effectively enter the deep portion of the groove between closely arranged cores
Solution Approach 1:
The invention divides the air supply function into multiple segments: a main air supply path for general air blowing and additional air supply paths that specifically target the groove portions between cores. This segmentation allows air to be delivered to previously inaccessible deep groove areas without requiring complex core movement mechanisms.
Solution Approach 2:
The invention introduces an intermediary air supply path that acts as a mediator to deliver air into the narrow groove spaces between cores. This intermediary path enables air to reach the deep portions of grooves where direct air blowing from the main path cannot effectively penetrate, thereby improving burr removal from these difficult-to-reach areas.
2Reliability
If a mechanism is added to move the molding pin forward and backward for air blowing, then air can be blown at the advance position, but the structure of the casting mold becomes complicated
Solution Approach 1:
The invention merges the air supply function with the existing mold structure by integrating air supply paths directly into the mold body and core design. This eliminates the need for separate moving mechanisms while maintaining effective air blowing capability, as air is supplied through fixed paths that target both surface and groove areas.
Solution Approach 2:
Instead of moving the core or molding pin to enable air blowing, the invention inverts the approach by keeping the core stationary and bringing air to the core through dedicated air supply paths. This reversal of the traditional moving-part approach simplifies the overall mold structure while achieving the same burr removal effectiveness.
3Manufacturing precision
If cores are arranged close to each other to form narrow gaps, then manufacturing precision is improved, but air blowing becomes difficult to reach deep into the groove
Solution Approach 1:
The invention applies local quality by providing specialized air supply paths specifically for the groove portions between cores, while the main air supply path handles general surface air blowing. This localized air supply arrangement ensures that the narrow gaps between closely arranged cores receive adequate air flow for burr removal without requiring the cores to be moved apart.
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 reliable air blowing into the deep portions of the core grooves without moving the core, ensuring the removal of burrs and preventing defects in the cast product.
Implementation Method 1
the second mold is provided with an air supply flow path configured to supply air for blowing, to a bottom of the groove portion
Data Source
AI summary
Provided is a casting mold with which it is possible to apply air-blow to a bottom part of a groove in a core without moving forward/backward the core relative to the mold body. This casting mold is provided with a first mold and a second mold for forming, between the first mold and the second mold, a cavity used to produce a cast article, wherein the second mold has a second mold body and a core, which protrudes from the second mold body in a first direction toward the first mold and is used to forms a hollow part in the cast article, the core is provided with a groove part that opens in the first direction and is recessed in a second direction opposite from the first direction, and the second mold is provided with an air supply flow passage for supplying air for blowing toward a bottom part of the groove part.