Printing Apparatus Gear System for Cleaning Brush Drive
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Solution Overview
Problem
Existing printing apparatuses face inefficiencies due to the wear and tear of chain belts used for rotating cleaning brushes, leading to frequent maintenance stops and reduced production efficiency.
Innovation Solution
A gear system is employed to rotate the cleaning brushes, providing higher durability against corrosion and wear, allowing for reduced maintenance and increased operational time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a chain system is used to rotate the cleaning brush, then the cleaning brush can be rotated while immersed in cleaning liquid, but the chain belt suffers from wear and elongation leading to frequent breakage and maintenance stops
Solution Approach 1:
The patent replaces the chain belt mechanical transmission system with a magnetic coupling system. The driving motor's rotational force is transmitted magnetically through the cleaning liquid to the cleaning brush, eliminating the need for physical chain belts that are subject to wear and elongation. This substitution resolves the contradiction by maintaining rotation capability while dramatically improving reliability.
Solution Approach 2:
The cleaning liquid serves as an intermediary medium that transmits rotational force from the driving motor to the cleaning brush without requiring direct mechanical contact. The magnetic field penetrates the cleaning liquid to transfer torque, allowing the brush to rotate while immersed without exposing transmission components to the corrosive liquid environment.
2Device complexity
If the chain belt is used for cleaning brush rotation, then the structure is simple, but frequent maintenance stops are required reducing production efficiency
Solution Approach 1:
By replacing the mechanical chain belt system with a magnetic coupling system, the patent eliminates the need for periodic maintenance stops. The magnetic coupling components are sealed and not exposed to the cleaning liquid, preventing wear and corrosion that would require maintenance. This increases continuous operational time and production efficiency despite the slightly increased system complexity.
3Ease of operation
If the chain belt is immersed in cleaning liquid for cleaning brush rotation, then the cleaning brush can be effectively driven, but the chain belt undergoes corrosion and wear over time
Solution Approach 1:
The cleaning liquid acts as an intermediary that allows magnetic field transmission while isolating the driving motor and chain belt from direct exposure to corrosive chemicals. The magnetic coupling enables torque transmission through the liquid without the chain belt being immersed, preventing chemical corrosion while maintaining the driving function.
Solution Approach 2:
Replacing the mechanical chain belt with a magnetic coupling system eliminates the structural components that would be subject to chemical corrosion. The magnetic field penetrates the cleaning liquid without degradation, maintaining driving capability while preserving the integrity of the transmission system.
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 gear system significantly reduces maintenance needs and extends operational time, enhancing production efficiency by minimizing wear and tear on the cleaning mechanism.
Implementation Method 1
a driving connection portion 70 which transfers the rotational driving force of the driving motor 83 to the first cleaning brush 81 and the second cleaning brush 82 by magnetic coupling
Data Source
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AI summary
A printing apparatus (100) includes a transport belt (23) which transports a printing medium, a cleaning tank (54) which stores cleaning liquid (59), a first cleaning brush (81) and a second cleaning brush (82) which are contained in the cleaning tank (54) and clean the transport belt (23), and a driving motor (83) which drives to rotate the first cleaning brush (81) and the second cleaning brush (82). The first cleaning brush (81) and the second cleaning brush (82) are driven to be rotated via a plurality of gears (71, 72, 73, 74, 76) which include a driving gear (71) which is provided in the driving motor (83) and driven gears (73, 76) which are provided in the first cleaning brush (81) and the second cleaning brush (82).