Multi-Punch Press Selection for Electromagnetic Steel Sheet Shape Changes
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Solution Overview
Problem
The existing press apparatus requires frequent replacement of punches and dies to adapt to changes in the shape of electromagnetic steel sheets, leading to reduced productivity.
Innovation Solution
A press apparatus with a selection unit that allows for the selective operation of multiple punches and dies, enabling the punching of electromagnetic steel sheets with different shapes without the need for frequent tool changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a punch and die are replaced to adapt to shape changes of electromagnetic steel sheets, then the press apparatus can process different shapes, but the productivity decreases due to frequent replacements
Solution Approach 1:
The press apparatus is equipped with multiple punches (first punch, second punch, etc.) that can be selectively used depending on the shape requirements of the electromagnetic steel sheet. This multi-functionality allows a single press apparatus to handle various shapes without requiring complete tool replacement, thereby maintaining productivity while adapting to shape changes.
Solution Approach 2:
The press apparatus incorporates a selection unit that can dynamically switch between different punches based on the workpiece material or shape requirements. This dynamic selection capability eliminates the need for manual tool replacement and maintains continuous production flow, resolving the contradiction between adaptability and productivity.
2Productivity
If multiple punches are provided with a selection unit, then the productivity is maintained during shape changes, but the device complexity increases
Solution Approach 1:
The selection unit is divided into functional components: a moving part that can shift position, pushing parts that apply force to specific punches, and housing parts that guide the punches. This segmentation allows each component to perform a specific function, simplifying the overall control mechanism while maintaining the capability to switch between multiple punches.
Solution Approach 2:
The selection unit acts as an intermediary mechanism between the control system and the multiple punches. It provides a standardized interface for selecting and activating the appropriate punch, thereby managing the complexity of having multiple punches without requiring complex control logic for each individual punch.
Data Source
AI summary
A press apparatus capable of reducing a decrease in the productivity of an electromagnetic steel sheet due to a change in the shape of the electromagnetic steel sheet is provided. A press apparatus according to an embodiment of the present disclosure is a press apparatus that punches an electromagnetic steel sheet from a workpiece by using a punch and a die of a mold, including: a first punch that punches an electromagnetic steel sheet having a first shape; a second punch that punches an electromagnetic steel sheet having a second shape; and a selection unit that integrally operates a first pushing part that pushes the first punch and a second pushing part that pushes the second punch, and selects the first pushing part or the second pushing part in order to selectively push one of the first and the second punches.