Casting Mold Apparatus Squeezing Force Isolation
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Solution Overview
Problem
Conventional molding apparatuses require large raising and lowering cylinders and oil-pressure components due to the extensive squeezing power from multiple squeezing feet, leading to bulkier and less efficient systems.
Innovation Solution
The introduction of a fixing and releasing mechanism that isolates the squeezing power above the raising and lowering mechanism, allowing for a smaller cylinder and reduced component size by transferring the load to a connecting frame and upper frame, thereby separating the raising and lowering mechanism from the components subjected to squeezing power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If multiple squeezing feet are used to apply squeezing power to foundry sand, then the squeezing effect is improved, but the raising and lowering cylinder and oil-pressure components must be made large to accommodate the squeezing force
Solution Approach 1:
The apparatus divides the squeezing force application into two independent phases: during sand filling, multiple squeezing feet apply squeezing power; during mold release, a single large squeezing foot applies concentrated force. This segmentation allows the cylinder to be smaller during filling while maintaining effective squeezing during release.
Solution Approach 2:
The squeezing feet are designed to be movable rather than fixed. During the filling phase, multiple squeezing feet are active; during the release phase, the system transitions to a single large squeezing foot. This dynamic reconfiguration allows the cylinder to be smaller while still providing sufficient squeezing power when needed.
2Force
If the raising and lowering cylinder is made large to handle squeezing power, then the squeezing capability is improved, but the oil-pressure components such as hydraulic pump and pipes must also be made large
Solution Approach 1:
The squeezing function is segmented between multiple small squeezing feet during filling and a single large squeezing foot during release. This allows the hydraulic system to be sized for the smaller filling phase forces, reducing the size of pumps and pipes while still providing sufficient force for mold release.
Solution Approach 2:
A mechanical transmission mechanism acts as an intermediary between the hydraulic cylinder and the squeezing feet. This transmission system amplifies the force from the smaller cylinder to provide sufficient squeezing power during release, eliminating the need for oversized hydraulic components.
3Volume of moving object
If a single large squeezing foot is used, then the cylinder size can be reduced, but the squeezing distribution over the sand surface may be insufficient
Solution Approach 1:
The system dynamically switches from multiple small squeezing feet during filling to a single large squeezing foot during release. This dynamic adaptation allows for both compact cylinder size and effective squeezing distribution at different stages of the molding process.
Solution Approach 2:
The squeezing function is segmented temporally and spatially: multiple feet provide distributed squeezing during filling, then a single foot provides concentrated squeezing during release. This segmentation resolves the contradiction between cylinder size and squeezing effectiveness.
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
This configuration enables a more compact and efficient molding apparatus with smaller raising and lowering mechanisms and associated components, capable of handling larger molds while maintaining operational effectiveness.
Implementation Method 1
the raising and lowering cylinder must be large, because the cylinder is subject to the squeezing power caused by the many squeezing feet
Implementation Method 2
squeezing the foundry sand filled in the space by means of many squeezing feet
Data Source
Figure 1(A)~1(B)
Figure 2(A)~3(B)
Figure 4(A)~4(C)
AI summary
Provided in the present invention is a method and an apparatus for molding a mold that can make a cylinder for raising and lowering a table smaller. Also, the present invention can make the components that are required for the operation of the cylinder, etc., smaller. The apparatus comprises the following: a mechanism for raising and lowering via a table a pattern carrier located below a flask; a sand-providing mechanism for providing foundry sand into a space defined by the pattern plate of the pattern carrier and the flask; a squeezing mechanism for squeezing from above the foundry sand loaded in the space; and a fixing and releasing mechanism for fixing and releasing a component subject to squeezing power caused by a squeezing mechanism, and wherein the fixing and releasing mechanism fixes the component receiving the squeezing power to the end of the squeezing mechanism in a position above the raising and lowering mechanism.