Hydraulic Deblocking Nozzle and Pump Layout for Eyeglass Lens Cleaning
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Solution Overview
Problem
Existing hydraulic arrangements for deblocking spectacle lenses in industrial production environments are inefficient due to intermittent pump operation, which can lead to cavitation corrosion and require high-pressure water jets for both deblocking and cleaning, resulting in unnecessary energy consumption and potential damage to equipment.
Innovation Solution
A hydraulic arrangement featuring two high-pressure pumps with variable rotational speeds for generating different pressures, allowing for efficient deblocking and cleaning processes, and a nozzle arrangement with multiple nozzles for optimized pressure application, reducing energy consumption and preventing cavitation corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single high-pressure pump is used for both deblocking and cleaning operations, then the device complexity is reduced, but the pump operates intermittently at high pressure causing cavitation corrosion and energy waste
Solution Approach 1:
The hydraulic system is segmented into two independent high-pressure pumps: a first high-pressure pump dedicated to deblocking operations and a second high-pressure pump dedicated to cleaning operations. This segmentation allows each pump to operate continuously at its optimal pressure level without intermittent high-pressure cycling, thereby eliminating cavitation corrosion and extending pump durability while maintaining manageable system complexity through functional specialization.
2Productivity
If high pressure is always applied for both deblocking and cleaning, then the effectiveness of both operations is improved, but energy consumption increases unnecessarily
Solution Approach 1:
The system applies local quality by providing different pressure levels tailored to specific operational requirements: the first high-pressure pump delivers high pressure optimized for deblocking operations, while the second high-pressure pump delivers a different pressure level optimized for cleaning operations. This localized pressure optimization ensures each operation receives exactly the pressure needed for effectiveness without the energy waste of applying uniformly high pressure to both processes.
Solution Approach 2:
The system changes the pressure parameter by using two independent pumps that can operate at different pressure levels simultaneously. The first pump maintains a first operating pressure for deblocking while the second pump maintains a second operating pressure for cleaning, allowing independent optimization of each process parameter without compromising the other, thereby reducing overall energy consumption while maintaining operational effectiveness.
3Adaptability or versatility
If variable rotational speed control is implemented on high-pressure pumps, then pressure adjustment capability is improved, but the device complexity and cost increase
Solution Approach 1:
The system implements dynamics by equipping each high-pressure pump with variable rotational speed control, allowing the operational parameters of both the first and second pumps to be dynamically adjusted according to specific process requirements. This dynamic control capability enables flexible pressure adjustment for different deblocking and cleaning scenarios while maintaining a relatively simple overall system architecture through decentralized, independent pump control rather than complex centralized regulation.
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 efficient and reliable deblocking and cleaning of spectacle lenses with adjustable pressures, minimizing energy use and preventing pump damage, while allowing for simultaneous processing of multiple workpieces, thus enhancing the longevity and performance of the deblocking apparatus.
Implementation Method 1
a pump device which separates a low-pressure section from a high-pressure section of the hydraulic arrangement and serves the purpose of loading the pressure medium, which is fed by way of the low-pressure section, in defined manner with pressure and conveying it under pressure to the nozzle arrangement in the high-pressure section
Implementation Method 2
a pressure medium such as water is usually used to detach the spectacle lens from the block piece by application of hydraulic forces
Implementation Method 3
a further nozzle for delivery of a further, rotating high-pressure jet in the deblocking apparatus, which serves the purpose of, in particular, 'peeling off' from the spectacle lens any blocking material which might still adhere to the deblocked spectacle lens
Data Source
AI summary
A hydraulic arrangement (HA) for an apparatus (AV) for deblocking optical workpieces (L), from associated block pieces (B), includes a nozzle arrangement (DA) for delivery of high pressure jets of pressure means for deblocking the workpiece from the associated block piece at a first pressure and for cleaning the blocked workpiece and/or block piece at least one second pressure which is different from the first pressure. Furthermore, there is a pump device (PE) which applies pressure in a defined manner to the pressure means and conveys it under pressure to the nozzle arrangement. The pump device has at least one high pressure pump (HP1, HP2) which is drivable by an associated rotary drive (SM1, SM2), the speed of which is modifiable in order to adjust the first pressure or the second pressure.