Sheet Processing Machine With Transfer-Free Continuous Transport
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing flatbed die-cutting machines are limited by discontinuous sheet movement, leading to low processing speeds and stress on the die-cut sheets, while rotary die-cutting machines offer higher speeds but require complex transfer points that can cause sheet damage and inefficiencies.
Innovation Solution
A processing machine design with an integrated transport system that includes a delivery unit, intermediate alignment, and further sheet-processing units, allowing continuous sheet movement and eliminating transfer points, thereby enhancing production speed and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If flatbed die-cutting machines are used with discontinuous sheet movement, then processing speed is limited to around 10,000 sheets per hour, but sheet stress is reduced compared to rotary die-cutting
Solution Approach 1:
The sheet is pre-assembled with multiple copies (unit) before die-cutting, allowing the die-cutting process to operate continuously at high speed without stopping for sheet assembly. The preliminary arrangement of multiple copies on a single sheet enables the subsequent die-cutting operation to process multiple units in one continuous motion cycle.
Solution Approach 2:
The patent implements continuous sheet movement through the die-cutting process by using a single large sheet containing multiple copies that are die-cut in one continuous operation. This eliminates the stop-start motion of traditional flatbed machines, maintaining continuous useful action throughout the processing cycle and achieving speeds exceeding 15,000 sheets per hour.
2Productivity
If rotary die-cutting machines are used for higher production speeds, then processing speed increases, but transfer points cause sheet damage and inefficiencies
Solution Approach 1:
The patent removes the problematic transfer points from the system by using a single continuous sheet that passes through the die-cutting process without being transferred between multiple processing stations. The multiple copies are arranged on one sheet and die-cut in a single continuous operation, eliminating the need for intermediate transfers that cause sheet damage.
Solution Approach 2:
The patent combines multiple copies into a single unit sheet, merging what would traditionally be separate processing operations into one continuous die-cutting process. This consolidation eliminates transfer points between processing stages and maintains sheet integrity while achieving high production speeds.
3Adaptability or versatility
If multiple transfer points are introduced to handle sheets between processing units, then flexibility is improved, but error probability and costs increase
Solution Approach 1:
The single large sheet serving as the carrier for multiple copies performs multiple functions: it acts as the processing medium, the transport medium, and the organizational structure for multiple units. This multi-functional approach eliminates the need for separate transfer mechanisms, reducing error probability while maintaining processing flexibility.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a processing machine (01) for processing sheets (02), wherein at least one unit (300; 400; 500; 600) for processing sheets (02) is arranged upstream of at least one delivery unit (700), wherein at least one further sheet (02)-processing unit (1200) is arranged downstream of the at least one delivery unit (700), wherein at least one unit (1100) in the form of an intermediate aligner (1100) is arranged along a transport path of sheets (02) of at least one transport system (1600) between a support surface for forming at least one partial stack (13) or stack (12) of sheets (02) in the at least one delivery unit (700) and the at least one further sheet (02)-processing unit (1200), wherein the at least one intermediate aligner (1100) has at least two stops (1101), which are assigned to adjacent sides of the at least one transport surface (1602), wherein the at least one transport system (1600) has at least one transport means (1601) with at least one transport surface (1602), wherein the at least one transport means (1601) takes the form of at least one transport plate (1601), wherein the at least one transport surface (1602) has at least one depression (1608) in the direction of movement of at least one stop (1101) of the stops (1101). The invention also relates to a method for operating a processing machine (01).