Integrated Printing and Perforating Machine for Sheet Material
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Solution Overview
Problem
Current sheet material perforation and printing processes are costly and inefficient, requiring separate operations with high maintenance and long durations, especially when perforations are dense and holes are small, leading to increased complexity and costs.
Innovation Solution
A printing and perforating machine that integrates perforation into the printing process, using synchronized perforating rollers or wheels with piercing elements that perforate the sheet material during its longitudinal or transverse movement, allowing for simultaneous printing and perforation, reducing handling and energy costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate perforation and printing machines are used, then each machine can be optimized for its specific function, but the overall process time increases and handling costs rise
Solution Approach 1:
The patent combines the perforation mechanism and printing mechanism into a single integrated machine. The perforation unit with punching elements and the printing unit with print heads are mounted on the same machine frame, allowing both operations to be performed on the sheet material in one continuous process without transferring between separate machines, thereby reducing handling time and operational complexity.
Solution Approach 2:
The integrated machine performs multiple functions simultaneously: it can perforate the sheet material through the punching elements while also applying printed patterns through the printing heads. This multi-functional capability allows a single machine to replace what would traditionally require separate specialized machines, improving overall process efficiency.
2Ease of operation
If separate perforation and printing operations are performed, then each operation can be independently controlled, but handling and loading/unloading time increases
Solution Approach 1:
The perforation unit and printing unit are integrated on the same machine frame with shared control systems. The sheet material passes through both units in sequence without requiring manual handling or transfer, eliminating loading/unloading time while maintaining independent control over each function through the centralized control system.
3Manufacturing precision
If dense perforations with small hole diameters are required, then perforation quality improves, but machine complexity and maintenance costs increase exponentially
Solution Approach 1:
The perforation mechanism uses multiple independent punching elements arranged in arrays on punching plates. Each punching element can be individually positioned to create precise hole patterns. The punching plates are segmented into multiple sections that can be independently adjusted, allowing dense perforations with small hole diameters to be achieved through coordinated action of many simple, identical elements rather than a single complex mechanism.
Solution Approach 2:
The machine allows adjustment of punching element spacing, hole diameter, and pattern density through parameter changes in the control system. By modifying these parameters, the same basic punching mechanism can produce varying degrees of perforation density without requiring fundamentally different machine configurations, thereby maintaining simplicity while achieving high precision.
4Reliability
If rolls are loaded and unloaded between perforation and printing, then separate process optimization is possible, but energy consumption and operational costs increase
Solution Approach 1:
The integrated machine eliminates the need to transfer rolls between separate perforation and printing machines. The sheet material remains on the same machine frame throughout both operations, eliminating the energy-consuming loading and unloading cycles that would occur with separate machines while maintaining the ability to optimize both functions within a unified system.
Data Source
AI summary
Printing and perforating machine comprising a perforating mechanism (1) and a printing mechanism (30), the perforating mechanism (1) comprising a perforating element (2, 7) provided with piercing elements (5); and a support element (4, 8) that defines with the perforating element (2, 7) a space for the passage of a sheet material (3), forming holes on the sheet material (3) when it passes through this space. With this machine, the perforation of the sheet material is carried out during the printing process thereof, preferably a digital printing, in a synchronized way, eliminating time and handling for loading and unloading the roll of sheet material in a conventional sheet material perforating machine.