Labeling Machine Carousel Safety with Kinematic Doors
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Solution Overview
Problem
Current labeling machines lack effective means to prevent unauthorized access to the rotating carousel during operation, particularly when switching between labeling assemblies.
Innovation Solution
A labeling machine with a protective structure featuring movable doors connected to sliders, allowing access when assemblies are in the forward position and preventing access when in the retracted position, utilizing a cam-roller mechanism and kinematic chain to control door movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective structure is provided to prevent access to the rotating carousel during operation, then safety is improved, but access is blocked when labeling assemblies need to be exchanged
Solution Approach 1:
The protective structure incorporates movable doors that can dynamically change position between open and closed states. The doors are coupled to sliders through cam-roller mechanisms, allowing automatic opening when sliders are in forward position and closing when sliders retract, thus adapting the protection level according to operational needs
Solution Approach 2:
The system uses the position of the sliders as feedback to control door movement. When sliders move to forward position, the cam-roller mechanism detects this and automatically opens the doors; when sliders retract, the doors automatically close, creating a feedback-based safety system that responds to operational state
2Reliability
If means are provided to prevent intrusions beyond the protective structure when labeling assemblies are in retracted position, then safety is improved, but operational efficiency deteriorates due to restricted access
Solution Approach 1:
The protective structure transitions from a static barrier to a dynamic system with movable doors that automatically adjust their position based on slider location, enabling quick access during reel changes while maintaining protection during operation
Solution Approach 2:
The system automatically controls door opening and closing through the cam-roller mechanism coupled to slider position, eliminating the need for manual intervention to access the carousel during reel changes, thus improving operational efficiency
3Reliability
If the protective structure completely encloses the rotating carousel, then safety is improved, but access for reel changes becomes difficult
Solution Approach 1:
The protective structure is divided into multiple movable door segments rather than a single solid enclosure. Each door can independently open when its associated slider is in forward position, providing localized access points for reel changes while maintaining overall enclosure for safety
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures operational efficiency by maintaining protection during label application and reel changes, allowing seamless transitions without compromising safety.
Implementation Method 1
a door movable by action of means that connect said door to said slider
Data Source
AI summary
Labeling machine, particularly for labeling containers, comprising a rotating carousel for supporting pans, at least one pair of identical labeling assemblies being provided which are arranged consecutively at the peripheral region of the rotating carousel, each one of the labeling assemblies being associated with a slider slidable on guides between a forward active position, for applying the labels to the containers supported by the rotating carousel, and a retracted position, designed to load a reel of tape provided with the labels, the protective structure, which surrounds the rotating carousel, having, at each labeling assembly, a door movable by the action of elements that connect the door to the slider which supports the labeling assembly between an open position, assumed when the labeling assembly is in the forward position, and a closed position, assumed when the labeling assembly is in the retracted position.