Panel Sawing Sequence With Restacking for Mixed Cutting Plans

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Solution Overview

Problem

Current panel dividing systems require a strictly sequential process for sawing panels, which is inefficient when panels in a stack have different cutting plans, leading to increased time and resource utilization due to the need for individual sawing of each panel according to its specific cutting plan.

Innovation Solution

The method involves stacking and unstacking panels between sawing process sections to optimize the number of panels sawn together in each section, allowing for joint sawing when cutting lines permit, and using a handling device to manage and align panels for efficient processing with a single sawing line.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If panels are sawn individually according to their specific cutting plans, then each panel can be processed according to its requirements, but the total time required to divide the plates increases

Engineering Contradiction:
ImproveAbility to process different cutting plansVSAvoidTotal time required to divide plates
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent combines multiple panels with different cutting plans into a single stack and processes them simultaneously through multiple sawing lines. Each sawing line executes a specific cutting plan for panels positioned at corresponding locations in the stack, allowing parallel processing of different cutting patterns without requiring individual sequential processing of each panel.

Inventive Principle:
Principle #5Merging (Combining)

2Productivity

If panels are sawn in a stack, then processing efficiency increases, but this is only possible if all panels follow the same cutting plan

Engineering Contradiction:
ImproveProcessing efficiencyVSAvoidAbility to handle different cutting plans
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent segments the stack of panels into different positional groups, where panels at the same position across multiple stacks follow the same cutting plan. This allows the system to maintain stack processing efficiency while accommodating diversity in cutting requirements by assigning identical cutting patterns to panels in corresponding positions within the stack configuration.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If a strictly sequential sawing process is used, then the process is simple to manage, but resource utilization decreases and time increases

Engineering Contradiction:
ImproveProcess management simplicityVSAvoidResource utilization
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent implements continuous parallel processing by operating multiple sawing lines simultaneously on different panels within the stack. While one sawing line processes a panel, other lines are processing different panels in parallel, ensuring that the system maintains continuous productive action across all resources rather than idle sequential transitions between single-panel operations.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP3904025A1Method for sawing at least one board
Publication Date: 2021.11.03 IMA SCHELLING AUSTRIA GMBH
  • EP3904025A1 patent drawingFigure 1
  • EP3904025A1 patent drawingFigure 2~3
  • EP3904025A1 patent drawingFigure 4

AI summary

Method for sawing at least one panel (1) or at least one stack of panels (2) along cutting lines (3) of at least one cutting plan (4) by means of at least one saw (6) of a panel dividing system (7) movable along a saw line (5), wherein the cutting lines (3) in the, optionally respective, cutting plan (4) are partly parallel to each other and partly angled to each other, in particular orthogonally, and the sawing of the panel (1) or the stack of panels (2) is carried out in successive sawing process sections, wherein in each of the sawing process sections only one sawing operation is carried out along a single cutting line (3) of the, optionally respective, cutting plan (4) or only sawing operations are carried out along mutually parallel cutting lines (3) of the, optionally respective, cutting plan (4).wherein, between at least two of the successive sawing process sections, a stacking and/or unstacking of panels is carried out, and the sawing operations of at least these two successive sawing process sections are carried out with a different number of stacked panels (1). (Fig. 15)