Labelling Machine Pull-Out Device for Bottom Labeler Maintenance
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Solution Overview
Problem
Existing bottom labelers are difficult to access and their operating position is not adjustable, making operation and maintenance challenging due to their non-extendable arrangement below the conveyor belt.
Innovation Solution
A labeling device with a pull-out device that allows the bottom labeler to be moved from its operating position below the conveyor belt to a more accessible service position, featuring an adjustable retracted end position and a compression spring for precise positioning, along with a rotatable holder for enhanced accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bottom labeller is arranged below the conveyor belt for labeling, then the labeling function is achieved, but the accessibility for operation and maintenance deteriorates
Solution Approach 1:
The bottom labeller is mounted on a pull-out device that enables it to move between a retracted end position (operating position below conveyor belt) and an extended end position (service position for accessibility). This dynamic positioning resolves the contradiction by allowing the system to switch between operational configuration and maintenance configuration.
Solution Approach 2:
The labeling device is divided into separable components: the bottom labeller is detachably mounted on the pull-out device, which itself is part of the labeling device. This segmentation allows the bottom labeller to be independently moved for maintenance while the rest of the labeling device remains stationary.
2Adaptability or versatility
If the bottom labeller is fixed in position for stable labeling, then the labeling precision is maintained, but the adjustability of label position deteriorates
Solution Approach 1:
The position of the pull-out device can be adjusted along the conveying direction, which changes the longitudinal position parameter of the bottom labeller. This allows different label positions to be achieved while maintaining precise positioning through the adjustment mechanism.
Solution Approach 2:
A compression spring is used to replace complex mechanical positioning mechanisms, providing automatic return to the retracted end position and maintaining precise positioning through elastic force rather than complex mechanical linkages.
3Ease of operation
If the pull-out is extended for accessibility, then the service position is improved, but the risk of incomplete retraction deteriorates
Solution Approach 1:
The compression spring is pre-loaded to create a restoring force that automatically acts on the pull-out device, preventing incomplete retraction by continuously pushing the pull-out back to its retracted end position when released.
Solution Approach 2:
The compression spring provides self-service by automatically returning the pull-out device to the retracted position without requiring external intervention, operators, or additional actuation mechanisms.
4Manufacturing precision
If a compression spring is added for positioning, then the positioning precision is improved, but the device complexity increases
Solution Approach 1:
The compression spring serves multiple functions simultaneously: it provides the restoring force for retraction, maintains positioning accuracy, and acts as a dampening element. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity.
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
Enables easy access and adjustment of the label position on packaging, ensuring accurate labeling by allowing the bottom labeler to be moved into a service position for maintenance and operation, preventing incorrect label placement.
Implementation Method 1
A compression spring can be provided, which is articulated at one end to the extension and at the other end to the extension support in such a way that the extension is pretensioned in the retracted end position
Implementation Method 2
The compression spring is a gas compression spring and/or a compression spring with, in particular, hydraulic damping
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
The invention relates to a labelling device (13) having a bottom labeller (43) and a pull-out device (45) which comprises a pull-out means (49) which is mounted via a pull-out guide (51) on a stationary pull-out carrier (53) and can be moved linearly relative to the latter between a retracted and an extended end position, wherein the bottom labeller (43) is positioned on the pull-out means (49).