Printing System Direction Changing Unit Layout
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Solution Overview
Problem
Existing printing systems face challenges with excessive worker workload due to long carrying distances and large floor area requirements, which hinder high-density layout and flexible expansion of printing lines.
Innovation Solution
A printing system with a direction changing unit that allows for duplex and simplex printing modes, where sheets are introduced and output in parallel lines with adjacent input and output units, reducing carrying distances and optimizing workspace layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two printing lines are widely separated to allow workspace around each input and output unit, then workers can access each unit, but the carrying distance for rolls becomes large and floor area becomes excessively large
Solution Approach 1:
The patent merges the input units of multiple printing lines into a shared location, and similarly merges the output units into a shared location. This consolidation allows workers to access all input units from one location and all output units from another location, eliminating the need for separate workspaces around each individual unit. The merging reduces the total floor area while maintaining worker accessibility through centralized access points.
2Productivity
If the number of printing lines is increased in a widely separated layout, then printing capacity increases, but the input and output units become further separated and surrounded by apparatuses, making roll carrying work impossible
Solution Approach 1:
The patent applies merging by consolidating all input units into a single shared location and all output units into another shared location. This approach allows the number of printing lines to be increased while maintaining centralized access points for roll carrying operations. Workers can efficiently service multiple printing lines from these merged locations without being hindered by apparatuses scattered throughout the expanded facility.
3Adaptability or versatility
If two input units and two output units are widely separated for two printing lines, then each line operates independently, but the carrying distance for rolls becomes large increasing worker workload
Solution Approach 1:
The patent merges input units and output units into shared locations that serve multiple printing lines simultaneously. This consolidation reduces the carrying distance for rolls from the pre-processing apparatus to input units and from output units to the post-processing apparatus. Workers experience reduced workload because they carry rolls over shorter distances, while the printing lines maintain their independent operational capability through the shared infrastructure.
Data Source
AI summary
In a printing system capable of selectively performing duplex printing and simplex printing, a first input unit and a second input unit are adjacent to each other. A first output unit and a second output unit are adjacent to each other. In duplex printing, a sheet supplied from the first input unit is printed on a first side thereof in a first printing apparatus and the traveling direction thereof is changed at a changing unit while the sheet is reversed, and then the sheet is printed on a second side thereof in a second printing apparatus and output to the second output unit. In simplex printing, a sheet supplied from the first or second input unit is printed on one side thereof and the traveling direction thereof is changed at the changing unit, and then the sheet is output to the first or second output unit.