Oscillating Piston Cutting Device for Hides
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cutting devices for hides and similar materials face limitations in the rapid vertical rise of the cutting blade due to inertia and dynamic characteristics, which affects the efficiency of cutting paths with sharp corner edges, and existing solutions using springs compromise oscillation frequency and are costly.
Innovation Solution
A cutting device with an oscillating piston actuated pneumatically, featuring a solenoid valve-regulated supply duct to rapidly raise the cutting blade by directing pneumatic pressure to the upper stroke limit position upon oscillation supply cutoff, without interfering with normal oscillation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a spring is used to propel the oscillating piston toward the upper stroke limit position, then the blade raising speed is improved, but the oscillation frequency is limited and the device complexity increases
Solution Approach 1:
The patent uses a pneumatic system with a double-acting cylinder to control the oscillating piston. The cylinder has an oscillation chamber that can be pressurized from both sides to enable rapid bidirectional movement of the piston, eliminating the need for complex spring mechanisms while maintaining high blade raising speed.
Solution Approach 2:
The patent implements a dynamic control system where the pneumatic pressure in the oscillation chamber is varied during operation. The system can rapidly switch between different pressure states to achieve both high oscillation frequency during cutting and rapid blade raising when needed, without mechanical constraints.
2Speed
If a spring is used to propel the oscillating piston, then the blade raising capability is improved, but the oscillation frequency is reduced
Solution Approach 1:
The pneumatic double-acting cylinder allows rapid bidirectional movement of the oscillating piston by pressurizing gas in both chambers. This enables the system to achieve both high blade raising speed and high oscillation frequency without the mechanical limitations imposed by spring-based systems.
Solution Approach 2:
The system dynamically changes the pneumatic pressure parameters in the oscillation chamber during operation. By varying pressure magnitude and timing, the system can optimize both blade raising speed and oscillation frequency according to the specific cutting task requirements.
3Speed
If a spring is used to return the piston to the upper stroke limit position, then the blade extraction speed is improved, but the dynamic characteristics are penalized
Solution Approach 1:
The pneumatic system provides controlled, reliable force application during blade extraction without the instability inherent in spring-based systems. The double-acting cylinder can maintain consistent pressure to ensure reliable and repeatable blade raising performance.
Solution Approach 2:
The control system incorporates feedback mechanisms to monitor and adjust pneumatic pressure in real-time during blade extraction, ensuring optimal performance and reliability while maintaining high extraction speed.
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
Enables rapid and efficient blade raising without impacting oscillation frequency, improving cutting speed and reliability while being cost-effective and easy to implement.
Implementation Method 1
a supply duct (8) that leads to said oscillation chamber (9), said supply duct (8) being regulated by a solenoid valve in order to raise said oscillating piston (2) and consequently raise said cutting blade (3)
Data Source
AI summary
A cutting device for machines for cutting hides and the like, including an oscillating piston provided at its end with a cutting blade, the oscillating piston being actuated pneumatically by way of an inlet and an outlet, an oscillation chamber being defined by the lower and upper stroke limits of the oscillating piston, the device including a supply duct that leads to the oscillation chamber, the supply duct being regulated by a solenoid valve in order to raise the oscillating piston and consequently raise the cutting blade.