Fill Shoe Park Position for Uniform Green Compact Density
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Solution Overview
Problem
Existing methods for producing green compacts from powdered or granular materials often result in one-sided compression, leading to irregular material density and reduced cutting efficiency and service life of cutting segments, due to the complexity of machine components and additional components required to address this issue.
Innovation Solution
A device and method that utilize a second park position for the fill shoe, allowing for reversed direction of material application between successive layers without additional machine components, and an adjustable fill shoe speed to reduce auxiliary process times, ensuring uniform material density and efficient construction of green compacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the fill shoe is moved in different directions over the matrix to reduce one-sided compression, then material density uniformity is improved, but device complexity increases due to additional machine components
Solution Approach 1:
Instead of moving the fill shoe in complex multi-directional paths to achieve uniform density, the invention inverts the approach by using a single-direction filling motion combined with a movable matrix that shifts position between layers. This reverses the traditional problem-solving approach and achieves density uniformity without complex fill shoe movements
Solution Approach 2:
The invention transitions from solving the density uniformity problem in the horizontal plane (by moving the fill shoe in different directions) to solving it in the vertical dimension (by moving the matrix between layers). This dimensional shift eliminates the need for complex horizontal movements while achieving the same goal
2Productivity
If the fill shoe is moved back into the first park position after filling, then the filling cycle is completed, but one-sided compression is produced on the edge of the construction chamber
Solution Approach 1:
Instead of moving the fill shoe to complete the cycle (which causes compression), the invention inverts the approach by keeping the fill shoe stationary and moving the matrix to the next position. This reverses the motion responsibility and eliminates the harmful compression effect
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
The solution achieves uniform material density in cutting segments, reducing construction time and eliminating the need for additional machine components, thereby enhancing cutting efficiency and service life while simplifying the manufacturing process.
Implementation Method 1
a press (6) with a lower punch (7) and an upper punch (8), which are adjustable by means of a height adjustment device (22, 23) and which compress the material applied layer-by-layer in the construction chamber
Data Source
AI summary
A device and method for producing a green compact from a powdered or granular material by successive application and compression of the material, is disclosed. The device includes a fill shoe, which is filled with the material and is adjustable by an adjusting device, where a first park position is provided for the fill shoe. A matrix having at least one construction chamber is filled with the material layer-by-layer by the fill shoe between a first and second end position. A press having a lower punch and an upper punch, which are adjustable by a height adjustment device, compresses the material applied layer-by-layer in the at least one construction chamber. After filling the construction chamber with the material, the fill shoe is moved out of the second end position into a second park position, where the second park position is different from the first park position.