Printing Press Drying Nozzle Orthogonal Airflow
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Solution Overview
Problem
Existing printing machines require a large drying length and installation space, leading to high energy costs due to excessive heat radiation, and lack flexibility in adapting to customer needs.
Innovation Solution
A printing machine design featuring two drying nozzles arranged in a compact manner with orthogonal discharge channels, where the first nozzle applies air in one direction and the second nozzle in a perpendicular direction, with adjustable guide rollers and nozzles to optimize air flow and reduce turbulence, allowing for flexible operation and reduced energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drying nozzles are arranged one behind the other in a housing at large intervals, then the drying function is achieved, but the drying length and installation space become relatively large
Solution Approach 1:
The patent transitions from a linear sequential arrangement of drying nozzles to a spatial configuration where nozzles are positioned at different angles (first nozzle at 45°, second nozzle at 90°) relative to the web material. This dimensional change in nozzle arrangement allows overlapping drying zones that reduce the overall drying length while maintaining effective drying function.
Solution Approach 2:
The discharge channel is designed to receive and integrate the discharge air from both the first and second drying nozzles into a common flow path. This nesting of discharge functions within a shared channel structure allows compact arrangement of multiple nozzles while coordinating their airflow to work together efficiently in a reduced space.
2Reliability
If drying nozzles are arranged one behind the other in a housing at large intervals, then the drying function is achieved, but heat radiation and energy costs increase
Solution Approach 1:
By arranging nozzles at different angular positions (45° and 90°) rather than in a linear sequence, the patent creates overlapping thermal fields that concentrate heat energy on the web material more efficiently. This reduces unnecessary heat radiation into surrounding spaces and minimizes energy loss.
Solution Approach 2:
The discharge channel merges the airflow from both nozzles into a coordinated flow pattern, creating a combined drying zone that improves thermal efficiency. This merging allows the system to achieve better drying performance with reduced total energy input compared to separate, sequentially arranged nozzles.
3Length of stationary object
If drying nozzles are arranged in a compact manner with discharge channels, then the installation space is reduced, but the complexity of air flow control increases
Solution Approach 1:
The patent extracts and separates the discharge functions of the two nozzles into distinct discharge channels that converge at different positions. The first discharge channel receives air from the first nozzle, and the second discharge channel receives air from the second nozzle, allowing independent control of each airflow path before they combine in the drying zone.
Solution Approach 2:
The discharge channels act as intermediary structures that mediate between the nozzles and the web material. These channels control and direct the airflow from each nozzle, coordinating their interaction to achieve effective drying while maintaining manageable system complexity through structured flow management.
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
This configuration minimizes installation space, reduces energy costs, enhances drying performance, and allows for better adaptation to customer needs by optimizing air flow and extending the effective exposure time of drying air, while maintaining flexibility and efficiency.
Implementation Method 1
blow warm air onto the tape material to dry the substances on the material
Implementation Method 2
apply drying air to the strip material
Data Source
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AI summary
The invention relates to a device (100) for drying a strip stock (101) of a printing press having a first drying nozzle (103) and a second drying nozzle (105), wherein the first drying nozzle (103) and the second drying nozzle (105) are each designed to apply drying air to the strip stock (101), and wherein the first drying nozzle is designed such that the first drying nozzle applies drying air to the strip stock (101) in a first feed direction (107) and discharges drying air from the strip stock (101) in a first discharge direction (111), and the second drying nozzle (105) is designed such that the second drying nozzle applies drying air to the strip stock (101) in a second feed direction (109) and discharges drying air from the strip stock (101) in a second discharge direction (113), wherein the first discharge direction (111) of the first drying nozzle (103) and the second discharge direction (113) of the second drying nozzle (105) are arranged in an outflow channel (115) extending between the first drying nozzle (103) and the second drying nozzle (105).