Vacuum System with Sliding Panels for Printing Machines
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Solution Overview
Problem
Existing vacuum systems in printing machines cause ink diversion and loss due to absorption effects in lateral areas not covered by items, requiring manual adjustment of vacuum plugs for different item widths, leading to inefficiencies and increased costs.
Innovation Solution
A vacuum application system with a box structure and sliding lateral panels, driven by a motor and screw system, automatically adjusts vacuum coverage based on item dimensions detected by a detection system, ensuring precise ink propulsion and reduced vacuum area exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vacuum is applied through the entire perforated support table surface, then items are securely held in place, but ink is diverted and lost in lateral areas not covered by items
Solution Approach 1:
The vacuum table is divided into multiple independent vacuum zones corresponding to different item width positions. Each zone can be independently activated or deactivated, allowing vacuum to be applied only where items are actually placed, thus preventing ink diversion in lateral areas while maintaining secure holding of items.
Solution Approach 2:
The support table surface is segmented into multiple vacuum zones with individual control. This segmentation allows selective activation of vacuum in specific areas, matching the actual item placement width and preventing harmful vacuum effects in unused lateral areas.
2Manufacturing precision
If manual adjustment of vacuum plugs is performed for different item widths, then vacuum coverage is optimized, but operator intervention is required and printing process slows down
Solution Approach 1:
The system includes a detection system that automatically detects item width and position, and a control system that automatically adjusts which vacuum zones are activated based on the detected parameters. This eliminates the need for manual operator intervention to adjust vacuum plugs for different item widths, maintaining precision while improving productivity.
Solution Approach 2:
The detection system provides real-time feedback about item dimensions and position, which the control system uses to automatically configure the vacuum zones. This closed-loop feedback mechanism ensures optimal vacuum coverage for each item without manual intervention, resolving the contradiction between precision and speed.
3Object-affected harmful factors
If vacuum plugs are repositioned for each item width change, then ink diversion is prevented, but adjustment time increases and costs rise
Solution Approach 1:
The vacuum system transitions from a static configuration requiring manual repositioning of plugs to a dynamic system where vacuum zones can be electronically activated or deactivated based on real-time detection of item width. This dynamic adaptation prevents ink diversion while eliminating adjustment time and associated costs.
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
Automatically adjusts vacuum application to match item sizes, preventing ink loss and diversion, reducing operational time and costs, and enhancing precision by eliminating manual intervention and ensuring reliable adjustments.
Implementation Method 1
a vacuum system arranged below the perforated support surface for supporting the items to be printed; there being arranged below the perforated support surface a vacuum system comprising a box structure connected by means of nozzles with a suction system
Data Source
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AI summary
The invention relates to a vacuum system for securing items in printing machines, comprising a printing table (2) with a perforated surface and, in relation thereto, a vacuum system for securing the items to be printed, which comprises a box structure (8) connected to a suction system and provided with a perforated wall in relation to the surface of the printing table (2), said box structure (8) having lateral panels that vertically close the interior thereof, which panels can be moved in order to adjust the gap between them in relation to the width of the items to be printed.