Vacuum Suction Device for Circular Sheet Handling
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Solution Overview
Problem
Conventional suction devices face difficulties in efficiently removing residual water from circular sheets during the manufacturing process of contact lenses, leading to unsmooth manufacturing due to the lightweight nature of the sheets, which hinders easy release.
Innovation Solution
A vacuum suction device comprising a transfer base, multiple suction heads, a vacuum generator, a pressure balance set, and a first pressure blow set, equipped with electromagnetic valves and pressure regulators, allows for controlled suction and air pressure management to facilitate water removal and sheet detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional suction device is used to transport circular sheets, then the sheets can be held during transport, but the sheets cannot be released easily due to their lightweight nature
Solution Approach 1:
The suction device uses periodic action by alternating between vacuum suction mode and pressure blow mode. During transport, vacuum suction holds the lightweight circular sheet firmly. At release points, pressure blow electromagnetic valves switch on to apply positive pressure that easily detaches the sheet, solving the problem of difficult release caused by the sheet's light weight
2Productivity
If conventional suction device transports sheets through channels, then transport is achieved, but residual water remains in the channels affecting subsequent operations
Solution Approach 1:
The device extracts residual water from the channels using a dedicated water removal mechanism. After sheets are released, pressure blow electromagnetic valves activate to force air through the channels, extracting and removing accumulated water droplets. This ensures the channels are dry for the next sheet, maintaining manufacturing productivity and smoothness
Solution Approach 2:
Air acts as an intermediary substance in the water removal process. Pressure blow electromagnetic valves introduce compressed air into the channels, which serves as a mediator to displace and expel residual water droplets from the suction channels, preventing water accumulation that would hinder subsequent operations
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 device effectively removes residual water and enables smooth handling of circular sheets by regulating suction forces and air pressure, ensuring efficient manufacturing processes.
Implementation Method 1
a suction head of a conventional suction device may suck the circular sheet
Implementation Method 2
the first pressure blow set is connected to the fourth pipe and has a pressure blow electromagnetic valve and a pressure source
Data Source
AI summary
A vacuum suction device has a transfer base, multiple suction heads, a vacuum generator, a pressure balance set, and a first pressure blow set. Each one of the suction heads has at least one channel and a withdraw end. The vacuum generator is connected with a vacuum circuit electromagnetic valve. The first end of the pressure balance set is connected with the channel of each suction head. The second pressure blow set is connected with the third pipe and has a second pressure blow electromagnetic valve, a pressure regulator, and a pressure source. The first pressure blow set is connected to the fourth pipe and has a pressure blow electromagnetic valve and a pressure source.