Guillotine Cutting Machine Stack Rotation for Compact Material Handling
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Solution Overview
Problem
Existing methods for cutting cuboid starting stacks into blanks require large transport bases and multiple cutting machines, leading to inefficient material handling and increased periphery requirements, making it difficult to handle small-format units and resulting in long material travel paths.
Innovation Solution
A method using a single sheet cutting machine where the starting stack is advanced on a rear table, separated into partial stacks, rotated, and aligned on a turntable to minimize travel paths, allowing for compact design and efficient cutting with only one guillotine machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple cutting machines and large transport bases are used to cut starting stacks into blanks, then cutting capability is sufficient, but material travel paths become long and periphery requirements increase
Solution Approach 1:
The patent combines multiple cutting functions (transverse cutting and longitudinal cutting) into a single guillotine machine. The stack is first cut in the transverse direction, then rotated 90 degrees on the same machine, and finally cut in the longitudinal direction, eliminating the need for multiple machines and large transport bases.
Solution Approach 2:
The patent introduces a vertical rotation dimension (90-degree rotation) on the same machine table to change the orientation of the stack between cutting operations. This allows the material to be repositioned without requiring large horizontal transport paths to move between separate machines.
2Ease of operation
If a large transport base is used to handle stacks between cutting operations, then material handling is enabled, but machine periphery and table surface requirements increase
Solution Approach 1:
The single guillotine machine performs multiple functions: it cuts stacks in the transverse direction, rotates them 90 degrees, and then cuts them in the longitudinal direction. This multi-functionality eliminates the need for separate machines and large transport bases, reducing the overall machine periphery while maintaining efficient material handling.
Solution Approach 2:
The patent uses a dynamic rotation mechanism that allows the stack to be reoriented 90 degrees on the same machine table. This dynamic repositioning capability enables the machine to handle materials of different orientations without requiring additional stationary transport infrastructure.
3Manufacturing precision
If three cutting machines are used to cut stacks in transverse and longitudinal directions, then cutting precision is achieved, but device complexity increases
Solution Approach 1:
The patent merges the functions of three separate cutting machines into a single guillotine machine. The machine is equipped with a rotation mechanism that allows it to perform both transverse and longitudinal cutting operations on the same stack, thereby maintaining cutting precision while significantly reducing device complexity.
Solution Approach 2:
The cutting process is segmented into distinct operational phases (transverse cutting, rotation, longitudinal cutting) that are sequentially performed on a single machine. This segmentation allows the complex task of multi-directional cutting to be broken down into manageable steps executable by one machine rather than requiring multiple machines operating simultaneously.
Data Source
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AI summary
The invention relates to a method for producing stacks of blanks by cutting cuboid-shaped initial stacks formed from a plurality of sheets in the transverse and longitudinal directions using a single faceplate cutting machine. According to the invention, such a method comprises: - at least one advance of the initial stack, arranged on a rear table of the cutting machine, by means of a feed device arranged in the area of the rear table, under a cutting blade of the cutting machine and separation of the initial stack into several sub-stacks, - retraction of the several sub-stacks under the cutting blade by means of a further feed device, - alignment of the several sub-stacks on the rear table to form a cuboid-shaped overall stack, - at least one advance of the overall stack under the cutting blade and separation of the overall stack into a plurality of sub-stacks.In this process, after the initial stack is separated into several sub-stacks and before the entire stack is advanced to form the multitude of sub-stacks, the several sub-stacks are rotated so that they are positioned perpendicular to their initial position. The multitude of sub-stacks produced by these cuts are then conveyed laterally onto a receiving table located to the side of the cutting machine and aligned to form a cuboid-shaped, finished stack. This method enables both transverse and longitudinal cutting of an initial stack using a single face-cutting machine, with very short travel distances for the material being cut.