Sheet Splicing Unit for Converting Printing Media
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The production of value or security documents often faces compatibility issues between different machines in the production process due to varying input and output formats, particularly between sheet and continuous formats, leading to inefficiencies and potential errors.
Innovation Solution
A packaging device comprising a sheet cutting unit, splicing unit, and transport unit that can adapt to both sheet and continuous formats, allowing for flexible processing and secure attachment of printed sheets to form continuous carriers, including the use of suction openings for fixation and welding for secure bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If dedicated machines are used for specific input and output formats, then manufacturing precision is improved, but adaptability deteriorates
Solution Approach 1:
The finishing device is designed with dual functionality to handle both sheet format and continuous format print carriers. The device includes a sheet cutting unit for separating printed sheets from print medium, a sheet splicing unit for producing continuous print medium, a sheet tray for receiving individual printed sheets, and a sheet transport unit that can feed to either the splicing unit or tray, enabling one machine to serve multiple format requirements downstream
Solution Approach 2:
The device incorporates adjustable and reconfigurable components that can adapt to different operating modes. The sheet transport unit can dynamically switch between feeding printed sheets to the sheet splicing unit or to the sheet tray based on the required output format, allowing the machine to change its function during operation rather than being fixed to a single format
2Ease of operation
If sheet format processing is used, then ease of operation is improved, but productivity deteriorates due to frequent handling
Solution Approach 1:
The device enables continuous processing by splicing individual printed sheets into continuous print medium that can be fed directly to downstream continuous format machines without interruption. The sheet splicing unit joins sheets along the side edge to form an endless print carrier, eliminating the need for frequent stopping and handling that would occur with individual sheet processing, thus maintaining continuous production flow
3Productivity
If continuous format processing is used, then productivity is improved, but ease of operation deteriorates due to complex handling
Solution Approach 1:
The device segments the continuous format processing into manageable steps: individual printed sheets are separated from the print medium by the sheet cutting unit, then selectively either stacked individually or spliced into continuous format by the splicing unit. This segmentation allows the system to handle continuous format efficiently while providing simple individual sheet options when needed, reducing overall operational complexity
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
Enables flexible adaptation to downstream machines, reduces errors, and ensures high-quality document production by allowing seamless integration of printed sheets into continuous formats, improving the overall efficiency and security of the document production process.
Implementation Method 1
The sheet transport unit comprises a sheet receiving table for receiving the printed sheet, the sheet receiving table having a plurality of suction openings which are designed to suck the printed sheet onto the sheet receiving table in order to fix the printed sheet
Implementation Method 2
The sheet connecting unit is designed to join the supplied printed sheet along the side edge of the sheet in a material-locking manner
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
The invention relates to a converting device (100) for converting printing media (101) for the production of documents, comprising: a sheet cutting unit (103) configured to separate a printing media (101) into a printed sheet (105) along a cutting edge (103a), wherein the printed sheet (105) has a sheet side edge (105a) which runs perpendicular to the cutting edge (103a); a sheet joining unit (107) for producing a continuous printing media (109); a sheet tray (111) for receiving separated printed sheets (105); and a sheet transport unit (113) configured to feed the printed sheet (105) to the sheet joining unit (107) or the sheet tray (111).The sheet joining unit (107) is designed to join the printed sheet (105) along its side edge (105a) in a material-bonded manner when the printed sheet (105) is fed by the sheet transport unit (113), in order to obtain the continuous printing carrier (109). The sheet delivery unit (111) is designed to receive the printed sheet (105) when it is fed by the sheet transport unit (113).