Separable Conveyor Roller for Coated Film Drying
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Solution Overview
Problem
Existing drying systems for coated continuous films face challenges in efficient cleaning and maintenance of conveyor rollers due to their design, which often requires significant downtime and complicated procedures, especially when dealing with high-temperature components and lengthy film sections.
Innovation Solution
The system allows easy removal and reassembly of conveyor rollers by incorporating a separable design with sliding support shafts and elastic means to accommodate thermal expansion, enabling cleaning and maintenance outside the machine without disassembling the entire system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conveyor rollers are designed with fixed support shafts and integral construction, then structural stability is improved, but cleaning and maintenance operations become complex and time-consuming
Solution Approach 1:
The conveyor roller is divided into separable components: the cylindrical roller body and the support shafts. The support shafts can be detached from the roller body, allowing the roller to be removed as a separate unit for easy cleaning outside the machine, while the support shafts remain in place. This segmentation resolves the contradiction by enabling maintenance ease without compromising structural stability when assembled.
Solution Approach 2:
The support shafts are extracted as removable elements from the roller assembly. By providing support shafts that can be detached and removed separately, the design allows the roller body to be taken out for cleaning operations without requiring disassembly of the entire roller structure or complex maneuvers inside the machine.
2Manufacturing precision
If conveyor rollers are removed from the machine for cleaning, then cleaning accuracy is improved, but machine downtime increases substantially
Solution Approach 1:
By segmenting the roller into a removable body and stationary support shafts, the roller can be quickly detached and cleaned outside the machine without requiring complete disassembly of motion transmission elements. This reduces the time penalty associated with removing rollers for cleaning while maintaining high cleaning accuracy.
Solution Approach 2:
The support shafts are designed with dynamic characteristics that allow quick attachment and detachment of the roller body. The shafts can accommodate the roller during operation and release it during maintenance, enabling rapid transitions between operational and maintenance states to minimize downtime.
3Productivity
If conveyor rollers operate at high temperatures up to 150°C, then drying efficiency is improved, but operator safety and cleaning feasibility deteriorate
Solution Approach 1:
The separable design allows the hot roller body to be detached from the support shafts and removed from the machine for cleaning. Once removed and cooled, the roller can be cleaned accurately outside the machine without exposing the operator to high temperatures, thereby eliminating the thermal hazard while maintaining drying efficiency during operation.
Solution Approach 2:
The roller can be removed and allowed to cool down before cleaning operations begin. This preliminary cooling action eliminates the thermal hazard to the operator while still allowing the system to operate at high temperatures for drying when the roller is in place.
4Ease of operation
If motion transmission elements are disconnected for roller removal, then roller accessibility is improved, but device complexity and disassembly time increase
Solution Approach 1:
The motion transmission elements are configured to connect to the support shafts rather than directly to the roller body. This segmentation allows the roller body to be removed without disconnecting the motion transmission elements, as the shafts remain in place with the transmission elements attached. This greatly simplifies the disassembly process while maintaining full accessibility for roller removal and cleaning.
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
Facilitates efficient cleaning and maintenance operations by allowing rollers to be removed and reassembled easily, reducing downtime and ensuring accurate cleaning while accommodating thermal expansions, thus improving operational efficiency and safety.
Implementation Method 1
there being provided elastic means adapted to maintain said guide cylinder in contact with said second support shaft
Implementation Method 2
jets or hot air are generally used, directed on the coated side of the film to cause evaporation and subsequent dispersion and expulsion of any solvents or humidity contained in said coating material
Implementation Method 3
the presence of this deposit of material on the rollers often causes noteworthy problems of alignment of the film inside the machine... the components of the system are usually at a temperature that can even reach 150°C
Data Source
Figure 1a~1b
Figure 2
Figure 3~6
AI summary
The present invention relates to a drying system of a coated continuous film and in particular a system equipped with improved roller conveyor devices of said continuous film. In detail, the invention relates to a drying system of a coated continuous film equipped with roller conveyor devices of the continuous film that allow easy and rapid removal of the rollers from the system to facilitate cleaning and maintenance operations. The conveyor roller is substantially separable into two parts with at least one of the two support shafts separable from the rest of the roller to facilitate the disassembly and reassembly operations of the conveyor roller from and on the system. In this way, it is unnecessary to remove all the motion transmission elements connected to one of the two support shafts.