Folding Protector Beam Coupling for Fast Reversible Assembly
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Solution Overview
Problem
Traditional heat-sealed folding protectors for machine tools face challenges such as long assembly times, inability to create specific geometries, non-reversibility of coupling, and quality uncertainty due to methods like gluing or riveting for coupling PVC structural beams with auxiliary beams.
Innovation Solution
A heat-sealed folding protector design featuring a pleated cover with PVC structural beams and auxiliary beams coupled using a seat with elastic flexible wings and a pin, where the pin is retained between abutment walls, allowing for easy assembly, reversibility, and secure coupling without damaging the protector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If gluing or riveting methods are used to couple PVC structural beams with auxiliary beams, then the coupling is strong and stable, but the assembly time is long and the process is complex
Solution Approach 1:
The coupling system is segmented into distinct functional components: the elastic wing element (retention means), the pin (fastening means), and the abutment walls (containment means). This segmentation allows each component to be optimized independently and assembled quickly without complex multi-step processes like gluing or riveting.
Solution Approach 2:
The elastic wing element is pre-formed with retention characteristics that automatically engage with the pin upon insertion. This preliminary preparation of the retention means eliminates the need for on-site adhesive application or rivet installation, significantly reducing assembly time while maintaining coupling strength.
2Strength
If rivets or rivet fastenings are used to couple the beams, then the coupling is reversible only with special tools, but the assembly process becomes complex and requires damaging tools like drills and angle grinders
Solution Approach 1:
Instead of using rigid fasteners that require destructive removal tools, the invention inverts the approach by using an elastic retention means that naturally wants to retain the pin. The reversal of force direction (elastic recovery force opposing pin removal) enables easy reversibility by simply pulling the pin out, eliminating the need for drills and angle grinders.
Solution Approach 2:
The material parameter of the retention means is changed to be elastic rather than rigid. This parameter change allows the coupling to be strong during operation (elastic force retaining the pin) but easily reversible when needed (pin can be pulled out without damage). The elastic modulus and geometric parameters of the wing element are optimized to provide both strength and reversibility.
3Strength
If traditional coupling methods are used, then the assembly is secure, but the quality control is uncertain and requires onerous and protracted controls
Solution Approach 1:
The elastic wing element performs self-service quality control through its inherent elastic properties. The retention force is automatically adjusted based on the pin insertion depth and wing elasticity, providing consistent coupling strength without requiring external quality control measurements or adjustments by operators.
Solution Approach 2:
By changing the material parameter to elastic material and optimizing the geometric parameters (wing thickness, curvature, length), the coupling system achieves predictable and consistent performance. The elastic deformation characteristics provide a built-in mechanism for ensuring proper engagement, reducing variability in coupling quality.
4Strength
If riveting or gluing is used for coupling, then the structural integrity is maintained, but the disassembly process requires special tools and may damage the protector
Solution Approach 1:
The retention means is formed as a flexible elastic wing element that can deform to accommodate the pin during assembly and then spring back to retain it. This flexible approach maintains structural integrity through elastic forces rather than rigid mechanical interlocking or chemical bonding, enabling easy disassembly by simply removing the pin without special tools or risk of damage.
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 enables rapid, economical, and secure assembly of the folding protector with reduced production time and costs, while maintaining structural integrity and ease of disassembly without damaging the protector.
Implementation Method 1
adapting a seat (5) obtained on said structural beam (3) comprising at least one flexible wing (15, 25) adapted to deform elastically
Data Source
Figure 1~2b
Figure 3a~6
Figure 7~9b
AI summary
The invention relates to a heat-sealed folding protector (1) for machine tools with moving head comprising: - a pleated cover (2); - a plurality of PVC structural beams (3) adapted to support said cover (2); - at least one auxiliary beam (4, 4', 4") adapted to be stably associated with one of said beams (3) with coupling means, characterized in that said coupling means comprise: - at least one seat (5) obtained on said beam (3) comprising at least one flexible wing (15, 25) adapted to deform elastically; - at least one pin (6) associated with said auxiliary beam (4, 4', 4"); - a first and a second abutment wall associated with said at least one pin (6), wherein: - said first and said second abutment wall are arranged so as to comprise said at least one pin (6) between them, - said at least one flexible wing (15, 25) adapted to deform elastically in the containment surface of said structural beam (3) as a result of the insertion of said at least one pin (6) in said seat (5) and to return to the initial position after insertion, retaining said pin (6), wherein said first and said second abutment wall coact with each other to contain said structural beam (3) in correspondence with said coupling means.