Press Die Block Row Alignment and Corner Damage Prevention
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Solution Overview
Problem
Conventional press die apparatuses face issues with die block corner section damage due to collision during pressing, and difficulty in maintaining proper alignment and thermal expansion management without displacement.
Innovation Solution
The press die apparatus features block rows aligned in a frame with joint portions arranged to face side surfaces of adjacent blocks, using wedges and spacers to ensure alignment and absorb deformation, reducing the likelihood of corner section damage and facilitating easy re-alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If die blocks are arranged in multiple block rows with joint portions facing each other, then the die structure can be assembled and aligned more easily, but the corner sections of die blocks may strike and damage each other during pressing operation
Solution Approach 1:
A gap is introduced as an intermediary space between adjacent die blocks in different block rows. This gap prevents direct contact between corner sections of die blocks during pressing operation, eliminating the damage problem while maintaining the modular assembly structure.
Solution Approach 2:
The die structure is divided into multiple separate die blocks arranged in block rows. By positioning joint portions to face side surfaces rather than each other, and introducing gaps between blocks, the segmentation allows independent positioning and prevents corner section collision while maintaining assembly ease.
2Strength
If die blocks are made of super hard metal for durability, then the die can withstand pressing forces better, but the cutting tool becomes dull easily and cannot cut the die material at one stroke
Solution Approach 1:
The die is divided into multiple separate die blocks that can be manufactured independently using conventional cutting tools. This segmentation allows each block to be cut separately without requiring the entire die to be cut in one stroke, making manufacturing feasible despite the use of hard materials.
Solution Approach 2:
Die blocks are pre-formed as separate components with conventional cutting methods before final assembly. This preliminary manufacturing approach allows the use of standard tools without requiring extreme hardness, while the final assembled die maintains the needed strength for pressing operations.
3Temperature
If die blocks are arranged with clearances to absorb thermal expansion, then thermal deformation is reduced, but maintaining proper alignment without displacement becomes difficult
Solution Approach 1:
The gap configuration creates an asymmetric arrangement where joint portions face side surfaces rather than each other. This asymmetric positioning, combined with strategically placed gaps, allows thermal expansion absorption while maintaining stable alignment through the uneven distribution of clearance spaces.
Solution Approach 2:
Gaps serve as intermediary spaces between die blocks, providing controlled clearance that absorbs thermal expansion while preventing uncontrolled movement. These intermediary spaces maintain alignment by limiting the range of motion of each die block during thermal cycling.
Data Source
AI summary
A press die includes block rows arranged in parallel in a frame. Each block row is formed by die blocks. The block rows include a first block row and a second block row that are adjacent to each other. A joint portion between adjacent two blocks belonging to the first block row faces a side surface of a die block belonging to the second block row.