Pipe End Flanging Roller Alignment for Low-Wear Forming
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pipe end flanging devices experience particle formation and wear on flanging rollers due to their funnel-shaped or V-shaped alignment, leading to reduced service life and quality of the flanging contour.
Innovation Solution
The device aligns the axis of rotation of the flanging roller at an angle to the longitudinal axis of the receiving unit, creating a roof-shaped configuration, which minimizes particle formation and wear by ensuring the flanging roller touches the workpiece only at the forming contour, and includes features like adjustable height and counter-rotating components to enhance the flanging process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the flanging roller is aligned in a funnel-shaped or V-shaped manner (parallel alignment with receiving unit axis), then the device structure is simpler, but particle formation increases and roller wear accelerates
Solution Approach 1:
The patent applies asymmetry by aligning the flanging roller's rotational axis at an angle (2-45 degrees) relative to the receiving unit's longitudinal axis, creating a roof-shaped configuration instead of the symmetric funnel-shaped alignment. This asymmetric arrangement ensures single-point contact between the roller and workpiece, minimizing particle formation while extending roller service life.
2Device complexity
If the flanging roller is aligned in a funnel-shaped or V-shaped manner, then the device structure is simpler, but roller service life decreases due to increased wear
Solution Approach 1:
The asymmetric angular alignment (2-45 degrees) between the flanging roller axis and receiving unit axis creates a roof-shaped configuration that reduces contact area to a single point. This minimizes wear on the flanging roller surface, thereby extending the roller's service life and reducing maintenance frequency.
3Force
If the flanging roller touches the workpiece along a line or area (funnel-shaped alignment), then the forming force is distributed, but the flanging contour quality deteriorates due to particle formation
Solution Approach 1:
The patent uses asymmetric angular alignment to transform the contact geometry from line/area contact (funnel-shaped) to point contact (roof-shaped). This ensures the flanging roller touches the workpiece only at the forming contour, eliminating particle formation and producing high-quality flanging contours while maintaining adequate forming force.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a device (10) for flaring a pipe end. The device (10) has a receiving unit for the workpiece (12) to be flared and at least one tool holder (30). Furthermore, at least one flaring roller (34) is provided, which is attached to the tool holder (30) via an axle (32). The flaring roller (34) can rotate about a pivot axis (36) along the longitudinal axis of the axle (32). According to the invention, the longitudinal axis (22) of the receiving unit (20) and the pivot axis (36) of the flaring roller (34) are oriented at an angle to each other. The pitch (39) of the pivot axis (36) of the flaring roller (34) is positive in the direction of the longitudinal axis (22) of the receiving unit (20).