Dual-Direction Roll Positioning Device With Elastic Swing Arms
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Solution Overview
Problem
Traditional positioning devices are limited to fixing rolls of specific dimensions and fail to securely hold rolls that become lighter due to reduced carrier weight, leading to unwanted movements and printing deviations in barcode machines.
Innovation Solution
A dual-direction positioning device featuring swing arms with engaging portions and elastic elements that move synchronously to adjust clamping distances, combined with a lock slider and rack structure for enhanced stability, allowing for secure positioning of rolls of varying dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional positioning devices with fixed positioning trenches are used, then rolls of specific dimensions can be located, but rolls of different dimensions cannot be fixed and the device lacks adaptability
Solution Approach 1:
The patent employs dynamic clamping structures that can move along guiding trenches and swing arms that rotate about fulcrums, transforming the static positioning trenches into dynamic adjustable clamping mechanisms. This allows the device to adapt to different roll dimensions while maintaining structural coherence through controlled movement rather than complete structural redesign.
Solution Approach 2:
The clamping structures are designed to perform multiple functions: they can clamp rolls of different dimensions, provide positioning stability, and accommodate varying roll weights. The swing arms and clamping structures work together as a universal positioning mechanism that replaces multiple fixed positioning trenches with a single adaptable system.
2Reliability
If fixed positioning trenches are used for rolls of certain dimensions, then positioning is simple, but rolls become unstable when carrier weight reduces and printing position deviation occurs
Solution Approach 1:
The elastic elements are pre-loaded to generate clamping forces that counteract the potential destabilizing effects of reduced carrier weight. The swing arm mechanism is designed with fulcrums positioned to provide mechanical advantage, creating preliminary counter-balancing forces that prevent positioning instability before it occurs during operation.
Solution Approach 2:
The elastic elements continuously exert restoring forces that respond to changes in roll position and weight. When the roll becomes lighter or shifts position, the elastic elements automatically adjust the clamping force to maintain stability, providing a feedback mechanism that corrects positioning deviations without manual intervention.
3Adaptability or versatility
If clamping structures are made adjustable for different roll dimensions, then adaptability improves, but the structure becomes more complex with additional components
Solution Approach 1:
The patent merges the positioning and clamping functions into a single integrated mechanism. The swing arms combine rotation about fulcrums with linear movement of clamping structures along guiding trenches, eliminating the need for separate positioning and clamping systems. This consolidation reduces overall device complexity while maintaining adjustability.
Solution Approach 2:
The clamping structures are segmented into movable components that can independently adjust along guiding trenches, allowing each segment to adapt to different roll dimensions. This segmentation enables localized adjustment without requiring complete structural reconfiguration, simplifying the overall adjustment mechanism.
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
The device effectively adjusts to different roll sizes and maintains stability even when rolls become lighter, preventing unwanted movements and ensuring precise positioning and improved printing quality.
Implementation Method 1
the first elastic element generates an elastic recovery force to have the first clamping structure moves along the second moving direction and to have the second clamping structure moves along the first moving direction
Data Source
AI summary
A dual-direction positioning device includes a main body, a first clamping structure, a second clamping structure, a first swing arm, a second swing arm, a coupling unit, and a first elastic element. The main body has a guiding trench portion. The first clamping structure and the second clamping structure are to and fro movably assembled to the guiding trench portion. The first swing arm is rotatably assembled on the first clamping structure and has a first engaging portion. The second swing arm is rotatably assembled on the second clamping structure and has a second engaging portion. The first engaging portion and the second engaging portion are rotatably assembled on the coupling unit and engaged with each other. The first elastic element has a first fixed end located between the first clamping structure and the second clamping structure and a first connecting end located on the first clamping structure.