Flatbed Punching Machine Pressing Force Adjustment
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Solution Overview
Problem
Existing flatbed die-cutting and embossing machines require time-consuming and error-prone adjustments of pressing force, which hampers efficiency and increases waste during job changes.
Innovation Solution
A method to adjust the pressing force by using job-dependent tool data and specific force data from a database to calculate a setpoint force, allowing for precise control of the pressing force through an adjusting device, with the option to correct after the first punching process and save settings for repeat orders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the pressing force is adjusted manually by moving wedge-shaped steel plates, then the punching force can be optimized, but the adjustment process becomes very time-consuming
Solution Approach 1:
The patent pre-calculates and stores the optimal pressing force values in a database based on tool type, material properties, and process parameters. When a punching operation is initiated, the system automatically retrieves the pre-determined optimal pressing force from the database and applies it, eliminating the need for time-consuming manual adjustment while ensuring manufacturing precision is maintained
Solution Approach 2:
The patent replaces the manual mechanical adjustment system (wedge-shaped steel plates requiring physical movement and operator intervention) with an automated control system that uses stored data and automatic calculation to determine and apply the optimal pressing force, significantly reducing adjustment time while maintaining precision
2Manufacturing precision
If the pressing force is adjusted manually, then the optimum force can be approached, but the process is error-prone and requires gradual approximation
Solution Approach 1:
The patent implements a feedback mechanism where the actual pressing force is measured and compared against the target value calculated from tool data and material properties. The system automatically adjusts the pressing force based on this feedback, ensuring high reliability and eliminating the errors inherent in manual gradual approximation methods
Solution Approach 2:
The system performs self-adjustment by automatically retrieving tool data, calculating the optimal pressing force, and applying the correct force without requiring operator intervention or gradual approximation, thereby eliminating human error and improving reliability
3Manufacturing precision
If manual adjustment is used, then the punching force can be optimized, but the setup time for job changes increases significantly
Solution Approach 1:
The patent pre-calculates and stores optimal pressing force values for different tool types, materials, and process conditions in a database. When a job change occurs, the system automatically retrieves the pre-calculated optimal pressing force from the database based on the new job parameters, eliminating the need for time-consuming manual adjustment and maintaining productivity during job changes
Solution Approach 2:
The patent implements a dynamic adjustment system that automatically adapts the pressing force based on real-time job parameters, tool data, and material properties. This dynamic system allows rapid reconfiguration for different jobs without the setup time penalties of manual adjustment, maintaining both precision and productivity
Data Source
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AI summary
The method involves providing tool data, which describes an individual structure of a cutting tool (30) including cutting and grooving tools, rubber linings, and round embossing stereotypes. Specific force data is read from a workflow connection (26). A specific pressing force is assigned to the cutting and grooving tools, the linings and stereotypes by the specific force data. A target-pressing force is calculated from the tool data and the specific force data. A pressing force (F) of a flatbed cutting and/or embossing machine (100) is adjusted to the target-pressing force. An independent claim is also included for a flatbed cutting and/or embossing machine.