Automated Dry Ice Blasting for Vehicle Adhesive Surface Cleaning
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Solution Overview
Problem
Existing methods for cleaning adhesive surfaces of vehicle components in the automotive industry are inefficient and lack automation, leading to suboptimal cleaning results and increased worker strain due to the use of solvents and manual effort.
Innovation Solution
A method and device utilizing solid carbon dioxide (dry ice) for automated cleaning of adhesive surfaces in an assembly line, featuring a chamber-like cleaning room, a blasting device with a jet nozzle, and an industrial robot to adjust specific cleaning parameters such as nozzle distance, speed, mass flow, pressure, and angle, along with a charge dissipation device to neutralize electrostatic charges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual cleaning methods using solvents are employed, then cleaning can be performed on adhesive surfaces, but worker strain increases and cleaning efficiency decreases
Solution Approach 1:
The patent replaces manual mechanical cleaning operations with an automated dry ice blasting system. A blasting device propelled by compressed air directs solid carbon dioxide particles at the adhesive surfaces, eliminating the need for manual solvent application and removal while significantly reducing worker strain and increasing cleaning productivity.
Solution Approach 2:
The cleaning system uses dry ice particles that sublimate upon contact with the surface, automatically removing themselves after completing the cleaning function. This self-service characteristic eliminates the need for additional removal steps and enhances cleaning efficiency while maintaining ease of operation.
2Productivity
If automated dry ice blasting is implemented, then cleaning efficiency improves and worker strain reduces, but device complexity increases
Solution Approach 1:
The blasting device serves multiple functions: it propels dry ice particles, directs them at precise locations, and controls the blasting parameters. By consolidating these functions into a single multi-functional device rather than separate systems, the patent manages device complexity while maintaining high cleaning efficiency and automation.
Solution Approach 2:
The system uses compressed air as a propellant to accelerate dry ice particles toward the target surface. This pneumatic mechanism provides automated propulsion and direction control without requiring complex mechanical actuators, thereby improving cleaning efficiency while keeping the device complexity manageable.
3Manufacturing precision
If cleaning parameters are optimized for adhesive surfaces, then cleaning quality improves, but process time increases
Solution Approach 1:
The patent optimizes cleaning quality by precisely controlling key parameters including blasting distance (5-15 cm), blasting speed (10-50 cm/s), and particle flow rate. These parameter adjustments ensure thorough contamination removal from adhesive surfaces while maintaining efficient process timing through automated control.
Solution Approach 2:
The automated blasting system operates with periodic motion patterns, moving the blasting device across the adhesive surface in controlled intervals. This periodic action ensures uniform cleaning quality across the entire surface while optimizing process time through efficient path planning and speed control.
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 method achieves improved cleaning efficiency, reduces manual effort and solvent use, and effectively removes contamination while neutralizing electrostatic charges, enhancing the cleaning process in a fully automated and ergonomic manner.
Implementation Method 1
impact the adhesive surface to be cleaned at very high speed. A layer to be removed can become locally supercooled and embrittled
Implementation Method 2
Subsequent carbon dioxide particles can penetrate brittle cracks and suddenly sublimate upon impact. The carbon dioxide becomes gaseous and greatly increase in volume
Implementation Method 3
The CO2 cleaning is carried out using ionized air, which is generated by an ionization device to reduce static charge on the component surface
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a device (100) for cleaning adhesive surfaces of vehicle components (102) using solid carbon dioxide, said device (100) for automated cleaning in an assembly line with a plurality of work stations comprises a chamber-like cleaning area (104) for vehicle components (102), a blasting device (118) with a jet nozzle (120) for emitting solid carbon dioxide onto vehicle components (102), a transport device (116) for transporting vehicle components (102) through the cleaning chamber (104) and a charge discharge device (128) for discharging an electrostatic charge from the vehicle components (102) in order to structurally and/or functionally improve the device (100).