Reciprocating Winding Unit for Printing Device Drying
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Solution Overview
Problem
Conventional printing devices face inefficiencies in production due to slow drying speeds and space utilization issues, with drying times often lagging behind print output speeds, leading to contamination and reduced productivity, especially when using large dryers that occupy significant space.
Innovation Solution
A printing device with a moving device that allows the winding unit to reciprocate between the outlet and inlet spaces of the printing unit, utilizing a rotating member and support member to automatically move the material, reducing operator workload and increasing drying efficiency while preventing material damage and safety accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a large dryer is used to increase drying time, then drying efficiency is improved, but installation space is significantly increased
Solution Approach 1:
The winding unit is designed to reciprocate between outlet and inlet spaces of the printing unit, creating a dynamic system where the drying route length varies with the position of the winding unit. This allows the drying time to be adjusted by changing the position of the winding unit rather than using a large fixed dryer, thereby reducing installation space while maintaining drying efficiency.
2Productivity
If print output speed is increased, then productivity is improved, but drying speed cannot keep up, leading to contamination and material damage
Solution Approach 1:
The reciprocating winding unit dynamically adjusts the drying route length to match the print output speed. When printing speed increases, the winding unit can be positioned to provide sufficient drying time, ensuring that drying speed keeps up with print output speed and preventing contamination and material damage.
Solution Approach 2:
The system uses sensors to detect the presence and position of the winding unit, and the controller adjusts the drying process based on this feedback. This ensures that the drying time is sufficient for the current print output speed, maintaining reliability while allowing high productivity.
3Duration of action of moving object
If a direction changing roller is used to extend the drying route, then drying time is increased, but the printed side of the material may contact the roller and become contaminated
Solution Approach 1:
Instead of using a fixed direction changing roller that causes contamination, the system uses a dynamic reciprocating winding unit to extend the drying route. The material travels along the reciprocating path without contacting potentially contaminating rollers, thus increasing drying time while preventing contamination.
4Device complexity
If the winding unit is fixed in position, then device structure is simple, but operator workload is high and printing time is increased
Solution Approach 1:
The winding unit is designed to reciprocate automatically between outlet and inlet spaces of the printing unit without requiring manual intervention. This self-service mechanism reduces operator workload and printing time while adding only moderate complexity to the device structure through the inclusion of a moving device and control system.
Data Source
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AI summary
A printing device according to the present invention comprises: a main body having a printing unit for printing on a material, and a winding unit for winding the material on which printing was performed; and a moving means provided at the main body, and provided to allow the winding unit to reciprocate between an output side space and an input side space of the printing unit.