Sheet-Transporting Element With Integrated Blocking Slider
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Solution Overview
Problem
Existing sheet-transporting elements with suction openings lack operational reliability due to insufficient adaptation to varying sheet formats and orientations, leading to suction opening switching errors.
Innovation Solution
A sheet-transporting element with integrated longitudinal and transverse sliders having air passages, which can be moved into switching positions to block different numbers of suction openings based on sheet format, utilizing a common or separate actuating drives and spindle drives to align air passages with suction openings for reliable sheet holding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sheet-transporting element uses fixed suction openings for all sheet formats, then the structure is simple, but suction opening switching errors occur when adapting to different sheet formats and orientations
Solution Approach 1:
The patent applies the dynamics principle by making the suction openings dynamically controllable through sliders that can switch between blocked and unblocked states. The sliders are actuated by a control system that responds to detected sheet format and orientation, allowing the suction openings to adapt their configuration dynamically rather than being fixed. This resolves the contradiction by enabling both adaptability to different formats and operational reliability through precise control.
Solution Approach 2:
The patent segments the suction opening system into multiple individually controllable units, each associated with a slider. Instead of a single fixed suction system, the surface is divided into multiple suction openings that can be independently activated or deactivated based on the sheet format. This segmentation allows precise adaptation to different sheet sizes and orientations while maintaining reliability by activating only the necessary suction openings.
2Adaptability or versatility
If sensors are assigned to every suction opening to control suction effect, then adaptability to different sheet formats is improved, but device complexity increases
Solution Approach 1:
The patent applies the universality principle by using a single control system that manages multiple sliders across all suction openings. Instead of requiring separate control mechanisms for each suction opening, the system uses a unified approach where one control unit coordinates the blocking and unblocking of multiple sliders. This reduces device complexity while maintaining the ability to adapt to different sheet formats through coordinated slider movement.
Solution Approach 2:
The patent merges the control functions for multiple suction openings into a single integrated control system. The control unit combines the functionality of controlling individual sliders into one unified mechanism, reducing the overall complexity of the system. The sliders themselves are also merged in their arrangement, forming a coordinated system that collectively adapts to different sheet formats through their combined movement patterns.
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 solution prevents suction opening switching errors by ensuring that only necessary suction openings are active for specific sheet formats and orientations, enhancing operational reliability and adaptability.
Implementation Method 1
suction openings for holding print sheets
Data Source
AI summary
A sheet-transporting element includes suction openings for holding print sheets, longitudinal sliders including air passages, and transverse sliders including air passages. The longitudinal sliders and the transverse sliders are disposed in a cross-wise configuration and are movable into different positions corresponding to various sheet formats in the positions blocking selected ones of the suction openings.