Automated Punching Cylinder Changing Device
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Solution Overview
Problem
Existing punching units with punch cylinders face challenges in efficient and automated cylinder changes, leading to increased downtime and operational inefficiencies during processing of corrugated cardboard.
Innovation Solution
A device for changing punch cylinders is introduced, allowing for simple and automated replacement of punch cylinders while maintaining high safety standards and reducing additional costs through a streamlined design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual cylinder change procedures are used, then operational simplicity is maintained, but downtime increases and productivity decreases
Solution Approach 1:
The patent implements a pre-setting station where punching cylinders are prepared and pre-positioned before being transferred to the punching position. This preliminary action allows cylinders to be ready for immediate installation, eliminating the need for manual preparation during job changes and significantly reducing downtime while maintaining high productivity
Solution Approach 2:
The patent introduces a changing station as an intermediary device between storage and the punching position. This automated changing station serves as a mediator that handles the complex cylinder exchange process, allowing rapid swapping without requiring manual intervention, thus reducing downtime while maintaining operational simplicity
2Productivity
If automated cylinder changing devices are implemented, then productivity increases and downtime decreases, but device complexity increases
Solution Approach 1:
The patent divides the cylinder changing system into distinct functional modules: a storage station for holding multiple punching cylinders, an automated changing station for the actual exchange process, and a pre-setting station for preparation. This segmentation allows each module to perform its specific function efficiently, reducing overall system complexity while enabling automated high-speed cylinder changes that increase productivity
Solution Approach 2:
The automated changing station is designed as a universal device that can handle multiple punching cylinders of different configurations. This multi-functional design allows a single complex device to perform various cylinder exchange operations, reducing the need for multiple specialized devices and thereby managing complexity while maintaining high productivity across different job types
3Loss of time
If multiple punching cylinders are stored and pre-applied, then job change time is reduced, but space requirements and device complexity increase
Solution Approach 1:
The patent implements a compact storage station where multiple punching cylinders are arranged in a nested or space-efficient configuration. Cylinders are stored in a vertical or layered arrangement that minimizes the horizontal footprint, allowing multiple cylinders to be kept ready for quick changeover without requiring excessive storage space, thus reducing job change time while managing space constraints
Data Source
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AI summary
The invention relates to a punching unit (900) having a device for changing (950) a punching cylinder (901), wherein the punching unit (900) has at least one punching cylinder (901) and at least one counter punching cylinder (902), wherein the punching cylinder (901) is arranged in a punching position (981) for punching, wherein the at least one punching cylinder (901) can be exchanged by at least one further punching cylinder (903) using the device for changing (950). The invention also relates to a method for changing a punching cylinder (901) of a punching unit (900).