Rotating Impacting Surface Perforation for Automotive Panels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing two-stage process for manufacturing quilted panels in automotive vehicles is prone to misalignment issues and requires costly modifications for changing perforation arrangements, leading to inefficiencies and increased complexity.
Innovation Solution
A perforating apparatus with a movable, rotatable impacting surface and a cutting edge that rotates during use, eliminating the need for separate alignment and modification tools, and incorporating a suction system for efficient slug removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a two-stage process with fixed male punch and female die is used for perforating quilted panels, then the perforation arrangement can be precisely formed, but any modification to the perforation arrangement requires new components, increasing expense and complexity
Solution Approach 1:
The impacting surface is made rotatable about a vertical axis, transforming it from a static component to a dynamic one. This rotation allows the same impacting surface to present different impact points to the cutting edge, enabling variation in perforation arrangements without changing the physical components. The dynamic element resolves the contradiction by providing adaptability while maintaining component simplicity.
Solution Approach 2:
The position of impact on the impacting surface is changed by rotating it, rather than changing the physical geometry of the punch or die. By varying the angular position parameter of the impacting surface, different perforation patterns are achieved. This parameter change approach allows modification of the perforation arrangement without requiring new components, thus reducing device complexity while improving adaptability.
2Ease of manufacture
If the panel is moved from the quilting machine to a press tool for perforation, then perforation can be performed, but misalignment of the panel with respect to the press tool is possible, ruining the panel
Solution Approach 1:
The apparatus combines both quilting and perforation functions in a single integrated system. The stitching head and perforating head share a common base and control system, allowing the same device to perform both operations. This multi-functionality eliminates the need to transfer the panel between separate machines, thereby maintaining ease of manufacture through process integration while ensuring precise alignment since the panel remains in the same position for both operations.
Solution Approach 2:
The quilting and perforation operations are merged into a single apparatus. The stitching head and perforating head are positioned to work on the same panel simultaneously or sequentially without relocation. This merging of functions resolves the alignment issue by eliminating the transfer step between separate machines, while still maintaining the distinct manufacturing processes within one integrated system.
3Productivity
If the cutting edge is repeatedly driven into the same point on the impacting surface, then the perforation process is efficient, but the impacting surface and cutting edge are substantially damaged
Solution Approach 1:
The impacting surface is rotated between successive impacts of the cutting edge, distributing the mechanical stress across different areas of the impacting surface. This dynamic rotation prevents concentration of wear at a single point, thereby extending the service life of both the impacting surface and cutting edge while maintaining efficient perforation throughput. The system achieves both productivity and reliability through this dynamic load distribution.
Solution Approach 2:
The rotation of the impacting surface effectively discards the used impact point and recovers unused portions of the impacting surface for subsequent impacts. This allows the system to continuously utilize fresh areas of the impacting surface, preventing cumulative damage at any single location and thereby extending the overall lifespan of the component while maintaining consistent perforation efficiency.
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
This solution enhances the precision and efficiency of perforation, reduces material damage, and simplifies the process by allowing for various designs without the need for multiple punch and die components, improving the quality and longevity of the panels.
Implementation Method 1
the impacting surface is moveable with respect to the cutting edge
Implementation Method 2
the impacting surface is resiliently deformable. That is to say, the impacting surface has a tendency to recover its original form after having been struck by the cutting edge
Implementation Method 3
a suction means in fluidic communication with the channel, the suction means being arranged to create low pressure within the channel for removing the slug of material from the channel
Data Source
AI summary
An apparatus for perforating a panel of material comprising a driver assembly; a perforation assembly comprising a cutting edge for cutting the panel of material; an impacting surface moveable with respect to the cutting edge; and, means for holding the panel of material in a material plane between the cutting edge and the impacting surface, wherein the driver assembly is arranged to drive the cutting edge through the material plane into the impacting surface to cut the panel of material.