Printing Sleeve Change Device with Safety Zone Segmentation
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Solution Overview
Problem
Existing systems for automatically changing printing sleeves on cylinder mandrels or adapter sleeves are complex and expensive due to the need for frequent adaptations to different diameters, and manual handling poses risks of damage to sensitive sleeves.
Innovation Solution
A device with a security area defined by structurally arranged separating elements or an optical security device, a holding device positioned outside the security area for safe grasping, and a transfer device within the security area to transport and change sleeves without manual intervention, allowing precise control and minimizing risk of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated systems are used to change sleeves, then productivity is improved, but device complexity increases due to frequent adaptations to different diameters
Solution Approach 1:
The system is divided into two functional segments: an automated transfer device for transporting adapter sleeves and mandrels, and a manual holding device for sleeve exchange. This segmentation allows automation of only the necessary transport functions while keeping the diameter-adaptive operations manual, thereby reducing overall system complexity while maintaining productivity benefits.
2Device complexity
If manual handling is used to change sleeves, then device complexity is reduced, but the risk of damage to sensitive sleeves increases
Solution Approach 1:
The transfer device acts as an intermediary between the automated system and the manual holding device. It safely transports adapter sleeves and mandrels to the operator, who then performs the delicate sleeve exchange operations. This intermediary function minimizes direct manual handling of fragile components while maintaining system simplicity.
3Extent of automation
If the holding device is positioned within the safety zone, then automation is improved, but operator safety is compromised due to restricted access
Solution Approach 1:
The holding device is positioned outside the safety zone in spatial dimension, while the transfer device operates within the safety zone to bridge the gap. This dimensional arrangement allows the operator to safely access and manipulate sleeves from outside the hazardous area while maintaining automated transport functions within the safety zone.
4Ease of operation
If the holding device is positioned outside the safety zone, then operator safety is improved, but automation capability is reduced
Solution Approach 1:
The transfer device serves as an automated intermediary that bridges the safety zone and the external holding device. It automatically transports adapter sleeves and mandrels to the operator positioned safely outside the zone, thereby maintaining automation capability while ensuring operator safety through spatial separation.
Data Source
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AI summary
The invention relates to a device (100) for changing sleeves (204) on cylinder mandrels (203) or adapter sleeves (205), which can preferably be introduced into a printing machine (200) and taken out again. The device comprises a safety device (101) which defines a safety region, as well as a retaining device (120) for temporarily retaining a cylinder mandrel or an adapter sleeve. The retaining device (120) is arranged at least partially within the safety region, and is arranged or can be positioned in such a way that the sleeve (204) can be grasped outside of the safety region.