Blade Holder With Automatic Guard For Inflation Sealing
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Solution Overview
Problem
Existing devices for inflating and sealing packaging materials face challenges in safe and easy blade replacement, which affects efficiency and user safety during the process of converting uninflated material into inflated cushions for packaging.
Innovation Solution
The inflatable-cushion inflation and sealing device incorporates a blade holder with a blade guard that automatically transitions between a safety position and a working position, ensuring user safety during blade replacement and operation, and includes a drive mechanism to direct film plies over a nozzle for inflation and cutting, utilizing a medical scalpel blade for precise cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the blade is exposed during blade replacement, then cutting operation is efficient, but user safety is compromised
Solution Approach 1:
The blade guard is designed to be movable between a retracted position (exposing the blade for cutting operations) and an extended position (covering the blade for safety). This dynamic positioning allows the system to adapt between efficiency and safety requirements based on operational state
Solution Approach 2:
The blade guard automatically transitions between safety and working positions through spring biasing and cam mechanism engagement during blade replacement, eliminating the need for manual operation and ensuring safety without compromising cutting efficiency
2Ease of operation
If the blade guard is manually operated, then precise control is achieved, but ease of operation is reduced
Solution Approach 1:
The blade guard system performs its own operation through spring biasing and cam mechanisms that automatically engage during blade replacement, eliminating manual control requirements while maintaining simplicity through self-actuating design
3Manufacturing precision
If the blade is constantly exposed, then cutting precision is maintained, but safety hazards increase
Solution Approach 1:
The blade guard dynamically positions itself to expose the blade only during cutting operations and cover it during replacement, maintaining cutting precision when needed while eliminating safety hazards when the blade is not in use
Solution Approach 2:
The blade guard acts as an intermediary element between the blade and the user/environment, controlling blade exposure to maintain precision during operation while preventing hazards during non-operational states
Data Source
AI summary
The present disclosure is directed to an inflatable-cushion inflation and sealing device. The device includes an inflation assembly configured for insertion between first and second overlapping film plies. The inflation assembly includes a fluid conduit configured to direct a fluid in between the plies to form one or more cushions. The fluid conduit includes a nozzle. The inflation assembly includes a cutting member. The cutting member includes a blade holder with a blade and a blade guard mounted thereon. The blade guard has a safety position in which the blade is covered and a retracted position in which the blade is exposed. Installation of the blade holder onto the inflation assembly automatically positions the blade in the working position with the blade guard retracted. Removing the tray from the inflation assembly automatically positions the blade in the safety position by covering the blade with the blade guard.