Slidable Bearing Assembly for Flexographic Printing Press
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Solution Overview
Problem
Existing bearing arrangements in flexographic printing machines experience radial play, leading to vibrations and reduced print quality, and require costly adjustments to minimize play.
Innovation Solution
A bearing arrangement with a roller bearing inner ring that is either integrated into the journal or a separate precision component, connected non-positively or positively, and a thick-walled or solid outer ring with fastening screws to minimize radial play and ensure high dimensional stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a bearing arrangement with radial play is used to enable easy assembly, then the ease of manufacture is improved, but the print quality deteriorates due to vibrations
Solution Approach 1:
The bearing arrangement allows dynamic adjustment of the holding head position axially relative to the parallel guides. The pressure medium-piston-cylinder unit enables the holding head to be displaced axially, allowing the bearing to be easily pushed onto the shaft journal during assembly, and then adjusted to eliminate radial play during operation, thus resolving the contradiction between ease of assembly and print quality
Solution Approach 2:
The invention changes the parameter of bearing play from a fixed value to an adjustable value. By using the pressure medium-piston-cylinder unit to displace the holding head axially, the radial play can be adjusted to the optimal minimum value required for high print quality, while still allowing for easy assembly when needed
2Manufacturing precision
If additional devices for lateral adjustment are added to reduce bearing play, then the print quality is improved, but the device complexity increases
Solution Approach 1:
The invention merges the lateral adjustment function into the existing bearing assembly structure. The holding head with axial displacement capability is integrated with the parallel guides and roller bearing, combining multiple functions (support, adjustment, and play elimination) into a unified structure, thus improving print quality without significantly increasing device complexity
3Manufacturing precision
If the bearing housing is moved transversely or parallel to reduce play, then the print quality is improved, but the ease of operation deteriorates
Solution Approach 1:
The holding head is designed to be displaceable axially relative to the parallel guides through the pressure medium-piston-cylinder unit. This dynamic adjustment mechanism allows the bearing to be easily positioned for sleeve changes, and then adjusted to eliminate radial play for high print quality, resolving the contradiction between ease of operation and print quality
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 solution significantly reduces bearing play, maintaining high print quality without costly readjustments and ensuring stability under load, thus enhancing the operational efficiency of flexographic printing machines.
Implementation Method 1
a roller bearing Roll longitudinal axis A aligned attachment level B1 is non-positively and / or positively connected to the bearing housing
Implementation Method 2
the roller bearing outer ring (12) and, if present, the roller bearing inner ring (16) are designed as a highly precise paired bearing unit
Data Source
AI summary
The releasable and slidable bearing assembly (10) has a bearing housing (11) which is moved transversely to cylinder and roller longitudinal axis (A). The bearing housing is slided parallely to cylinder and roller longitudinal axis. A roller bearing has a roller bearing outer ring (12) and cage-guided roller body (13). The roller bearing outer ring is connected with the bearing housing in the fastening planes (B1,B2) aligned transverse to cylinder and longitudinal axis in force and positive-fit manner.