Movable Cleaning Device for Roll Stand Automation
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Solution Overview
Problem
Existing automated cleaning devices for roll stands in rolling mills are hindered by interfering edges and obstacles from fixed piping, leading to incomplete cleaning and drying, necessitating manual post-cleaning and increased production downtime.
Innovation Solution
A movable cleaning device with adjustable, rotating jet nozzles for liquids and slotted blowing nozzles for drying media, aligned to ensure thorough cleaning and drying without fixed piping, allowing for automatic operation and integration with roll changing devices for efficient cleaning and drying during ongoing production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If permanently installed cleaning nozzles and drying air pipes are provided in the roll stand, then automated cleaning and drying can be performed, but interfering edges and obstacles are generated that create dead spaces and flow shadows, leading to incomplete cleaning and secondary contamination
Solution Approach 1:
The patent employs a movable cleaning device that travels along the roll stand on rails, replacing static permanently installed nozzles and pipes. This dynamic approach allows the cleaning medium and drying air to be delivered from a moving source, eliminating the interfering edges and obstacles created by fixed installations while maintaining automated cleaning functionality.
Solution Approach 2:
The invention extracts the cleaning and drying functions from the roll stand structure itself, removing the permanently installed pipes and nozzles that caused contamination. Instead, a separate movable device provides these functions, taking out the harmful elements while preserving the useful cleaning and drying capabilities.
2Productivity
If permanently installed cleaning devices are used in the roll stand, then automated cleaning is achieved, but the fixed piping creates obstacles that reduce scaffolding accessibility and require manual post-cleaning
Solution Approach 1:
The movable cleaning device travels along rails positioned on the scaffolding, dynamically accessing different areas of the roll stand without requiring fixed piping installations that would obstruct scaffolding. This maintains both automated cleaning efficiency and unobstructed scaffolding accessibility.
3Ease of operation
If manual cleaning with high-pressure cleaner is used, then labor flexibility is maintained, but the process is laborious and time-consuming, directly reducing production time
Solution Approach 1:
The movable automated cleaning device performs cleaning and drying operations autonomously as it travels along the roll stand, eliminating the need for manual intervention while maintaining comprehensive cleaning coverage. This self-service capability significantly reduces cleaning time and increases production efficiency.
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 quick, high-quality automatic cleaning and drying of roll stands, eliminating dirt deposition and improving accessibility, allowing for continuous operation in rolling mills without manual intervention, thus enhancing cost efficiency and production efficiency.
Implementation Method 1
The device (10) is associated with pressure lines (13, 13a, 13b and 13c). The pressure lines (13, 13a, 13b and 13c) have at their respective free ends (14) jet nozzles (15, 15a, 15b and 15c). A cleaning medium (16), for example water mixed with surfactants, is fed under high pressure through the pressure lines (13, 13a, 13b and 13c). The cleaning medium (16) emerges from the jet nozzles (15, 15a, 15b and 15c).
Implementation Method 2
The jet nozzles (15, 15a and 15c) are preferably designed to be self-rotating and are driven by the repulsive force of the cleaning medium (16) as it emerges from the jet nozzles (15, 15a, 15b and 15c).
Implementation Method 3
At least one further connecting means (19) is assigned to the device (11) on the connection side (18), via which the device (11) can be connected to a further supply source (20), a mobile or stationary supply module. The device (11) has a further print service system (21). The pressure line system (21) are assigned essentially cylindrical blow nozzles (22, 22a and 22b, 22c). The blowing nozzles (22, 22a and 22b, 22c) are designed to be rotatable about their longitudinal axis.
Implementation Method 4
The blowing nozzles (22, 22a and 22b, 22c) are designed to be rotatable about their longitudinal axis. Due to the possibility of rotation, all areas of the roll stand (11) can be blown dry evenly by means of a drying medium (24) fed into the pressure line system (21) via the supply module and the coupling (19).
Implementation Method 5
The device according to the invention provides that the cleaning device, similar to the roll changing devices, can be moved on their rails and has a plurality of jet nozzles for a liquid cleaning medium and blowing nozzles for a drying medium that can be aligned on the roll stand.
Data Source
Figure 1
Figure 2
AI summary
Device (10) for cleaning and drying roll stands, in particular roll stands in a roll train, wherein, to change the rolls, a roll-changing device is provided which can be moved into the roll stand (11) on rails transversely to the rolling line, wherein the device (10) can be moved, in a manner similar to the backup roll-changing device, on the rails (12) thereof and comprises a plurality of jet nozzles (15, 15a, 15b, 15c), which can be aligned with the roll stand (11), for a liquid cleaning medium (16) and blast nozzles (22, 22a, 22b, 22c) for a drying medium (24).