Movable Labeling Machine Guard for Safe Maintenance Access
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Solution Overview
Problem
Existing labeling machine protection systems hinder operator access during maintenance and format changing interventions, offering inadequate protection and usability.
Innovation Solution
A labeling assembly with a protection body that moves between active and inactive positions, allowing unhindered access to the work area by translating and rotating along vertical and horizontal axes, ensuring operator safety and ease of maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protection panels are mounted vertically around the labeling means, then operator safety is improved by preventing access to hazardous areas, but operator mobility is worsened as panels hinder free movement during maintenance interventions
Solution Approach 1:
The protection system transitions from static vertical panels to a dynamic body that can move between positions. The protection body is mounted on sliding mechanisms allowing it to move vertically along guide rails between an active protective position and an inactive retracted position, enabling both safety during operation and accessibility during maintenance
Solution Approach 2:
The protection body moves along a vertical dimension rather than being fixed in horizontal planes. By translating vertically along the labeling assembly's height, the protection system provides coverage when needed while clearing the horizontal work space when retracted, resolving the conflict between safety barriers and operator mobility
2Ease of operation
If a protection body is moved slidingly to a raised position, then access to work area is improved, but protection effectiveness is worsened as the body is spaced from the base framework
Solution Approach 1:
The protection body dynamically positions itself between two states: when lowered, it slides close to the base framework providing effective protection; when raised, it moves away to allow access. The sliding mechanism ensures controlled movement between these positions, maintaining protection effectiveness when needed while enabling access when required
Solution Approach 2:
The protection body alternates between active protective position and inactive retracted position based on operational requirements. During normal operation, it remains in the lowered protective position; during maintenance, it transitions to the raised access position, creating a periodic cycle that satisfies both safety and accessibility needs
Data Source
AI summary
A labeling assembly for labeling machines, which includes a base framework adapted to be associated with a conveyor of containers to be labeled and supporting, at a work area), elements for labeling the containers. At least one protection of the work area supported by the base framework is provided; the protection can be moved on command, with respect to the base framework, between an active condition, in which the protection is adapted to delimit at least partially the work area, and at least one inactive condition, in which the protection is arranged at least partially outside the portion of space that lies vertically above the work area, in order to allow access to the work area from outside.