Profile Coating Machine Snap-Fastening Roller Exchange
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Solution Overview
Problem
The retooling process for profile coating machines is time-consuming due to the need to replace and adjust multiple pressure rollers with different shapes, resulting in long machine downtimes and high costs.
Innovation Solution
The use of snap-fastening means for detachably receiving axle bolts of pressure rollers, which prevents tilting and allows for quick and simple exchange without the need for complex adjustments or additional securing mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw-thread connection is used to fix axle bolts in holders, then axial forces can be absorbed reliably, but the exchange of pressure rollers becomes time-consuming
Solution Approach 1:
The fastening mechanism is segmented into a snap-fastening means with a retaining element (such as a detent ball or cam) that can be quickly released, separating the secure holding function during operation from the quick release function during exchange. This allows reliable axial force absorption during coating operations while enabling rapid roller exchange by simply actuating the release mechanism.
Solution Approach 2:
The snap-fastening means employs a dynamic locking mechanism where the retaining element can transition between engaged and disengaged states. During operation, the mechanism dynamically maintains secure holding under axial loads, while during exchange, the same mechanism allows rapid transition to a released state without requiring tool removal or complex adjustments.
2Manufacturing precision
If multiple pressure rollers with different shapes are used for complex profile shapes, then good match is achieved, but the number of rollers to be exchanged increases
Solution Approach 1:
The snap-fastening means provides a universal mounting interface that can accommodate multiple different pressure roller types with various shapes and sizes. Instead of requiring different mounting mechanisms for different roller types, the same snap-fastening system handles all roller exchanges, reducing the complexity of the retooling process while maintaining the ability to use specialized rollers for complex profile shapes.
Solution Approach 2:
The snap-fastening means is pre-configured in the holder to enable quick connection and disconnection of pressure rollers. This preliminary preparation of the fastening mechanism eliminates the need for time-consuming adjustments and securing operations during roller exchanges, allowing operators to quickly swap between different roller types needed for various profile shapes.
Data Source
Figure 1~2
Figure 3~4
AI summary
A profile coating machine having a conveyer path for the profile to be coated, and a plurality of holders (24) which are disposed along the conveyer path and on which interchangeable pressure rollers (10) are held such that they roll over the profile, characterised in that the holders (24) have snap-fastening means (32) for detachably receiving axle bolts (18) of the pressure rollers (10).