Metal Strip Cutting with Vacuum Positioning for Reliable Shearing
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Solution Overview
Problem
Current cutting equipment for metal strips is unreliable due to the complexity of pressing mechanisms, which can lead to failed cuts and equipment wear over time, complicating the mechanical structure and reducing cutting efficiency.
Innovation Solution
The cutting equipment employs a compact design with a vacuum generating device and a through hole to position the strip, combined with movable pressing mechanisms and cams to create a height difference for cutting, replacing traditional pressing mechanisms and enhancing reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional pressing mechanism is used to press the strip onto cutting blades, then the cutting operation can be performed, but the mechanical structure becomes complex and reliability decreases due to wear and tear
Solution Approach 1:
The patent replaces the traditional mechanical pressing mechanism with a vacuum suction system. The vacuum generating device creates negative pressure through the through-hole in the support platform, causing the strip to be automatically adsorbed onto the platform surface. This substitution eliminates complex mechanical pressing components, reduces structural complexity, and improves reliability by avoiding wear-related failures of mechanical parts.
Solution Approach 2:
The patent employs pneumatic principles by using a vacuum generating device to create a pressure difference (negative pressure) through the through-hole. This pneumatic field enables the strip to be held and positioned on the support platform without mechanical contact, replacing the need for mechanical pressing mechanisms and reducing device complexity while maintaining cutting reliability.
2Reliability
If a pressing mechanism is used to ensure contact between the strip and cutting blades, then cutting can be performed, but the contact reliability is not guaranteed and failed cutting may occur
Solution Approach 1:
The patent replaces mechanical pressing with a vacuum suction system that provides uniform and reliable contact between the strip and the support platform. The vacuum field ensures complete surface contact without the variability associated with mechanical pressing mechanisms, eliminating failed cutting incidents and improving both contact reliability and cutting success rate.
Solution Approach 2:
The patent changes the physical parameter of contact force from mechanical compression to pneumatic suction. By controlling the vacuum pressure parameter, the system achieves reliable and consistent contact between the strip and support platform, ensuring high cutting success rate without the variability of mechanical pressing systems.
3Duration of action of stationary object
If a pressing mechanism is used to position the strip, then cutting operation can proceed, but prolonged use leads to equipment failure due to wear and tear
Solution Approach 1:
The patent replaces mechanical pressing components with a vacuum suction system that has no moving contact parts. The vacuum generating device and support platform structure experience no wear from friction or impact, dramatically extending equipment service life and maintaining high reliability over prolonged operation periods.
Solution Approach 2:
The support platform with through-hole acts as a simple, wear-resistant component that can be easily replaced if needed. The vacuum system eliminates the need for durable mechanical pressing mechanisms, allowing the use of simpler, less expensive components that maintain reliability over time.
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 simplifies the mechanical structure, improves cutting reliability, and reduces wear-related failures, ensuring a high success rate for metal strip cutting operations.
Implementation Method 1
the vacuum generating device is configured to extract air in the through hole so as to position the strip on the support platform
Data Source
AI summary
Cutting equipment for a metal strip includes a frame, and a feeding device, a fetching device and a cutting device. The cutting device includes a first pressing mechanism, a support platform, and a vacuum generating device, the first pressing mechanism is configured to press the strip, the support platform is provided with a through hole connected to the vacuum generating device. The vacuum generating device is configured to position the strip on the support platform, the first pressing mechanism and the support platform are movable up and down respectively to form a height difference between a first strip section located on the first pressing mechanism and a second strip section located on the support platform for cutting. The equipment can automatically cut metal strips, and is more reliable in the cutting operation and has a high cutting success rate.