Booklet Destacking Device Guide Arm Eccentric Mechanism

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Solution Overview

Problem

Existing booklet manufacturing production lines are inefficient, time-consuming, labor-intensive, prone to errors, and lack modularity, particularly in sorting, matching, and assembly processes.

Innovation Solution

A destacking device with a guide arm and lifting arm mechanism that automates sheet sorting and matching, combined with a conveyor system and control stations for efficient booklet assembly, allowing modular adaptation to production needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual sorting and matching operations are used in the production line, then labor flexibility is maintained, but productivity is low and error risk increases

Engineering Contradiction:
Improvesorting and matching speedVSAvoidautomation level
Core Design Contradiction:
ProductivityVSExtent of automation

Solution Approach 1:

The patent replaces manual mechanical sorting operations with an automated optical-mechanical system. Cameras capture sheet images, processing units analyze them to identify sheet types and orders, and robotic mechanisms automatically sort and match sheets. This substitution of manual mechanical operations with automated optical-mechanical systems resolves the contradiction by dramatically increasing sorting speed while eliminating human error.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables sheets to be automatically identified, classified, and sorted without human intervention. The processing unit autonomously analyzes sheet characteristics, determines sorting requirements, and controls the mechanical mechanisms to perform matching operations. This self-service capability allows the system to maintain high productivity while operating autonomously, resolving the contradiction between automation and productivity.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If a complete production line is implemented, then full manufacturing capability is achieved, but investment cost increases

Engineering Contradiction:
Improveproduction line functionalityVSAvoidinvestment required
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent divides the production line into distinct functional modules: a sorting module for separating sheets by type, a matching module for assembling booklets, and optional additional modules for envelope printing, sealing, and postage. Each module can be independently implemented or omitted based on investment constraints. This segmentation allows customers to start with a basic sorting and matching system and gradually add functionality, resolving the contradiction between versatility and investment cost.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The production line is designed with dynamic configurability, allowing modules to be added, removed, or reconfigured based on changing production requirements and available investment. The system can adapt its complexity level, transitioning from a simple sorting system to a complete integrated production line as resources permit. This dynamic approach resolves the contradiction by making the system's versatility adjustable rather than fixed.

Inventive Principle:
Principle #15Dynamics

3Productivity

If sheets are stacked for storage and transport, then space efficiency is improved, but sorting and matching becomes more difficult

Engineering Contradiction:
Improvesorting efficiencyVSAvoiddestacking mechanism
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent introduces a destacking device as an intermediary mechanism between the stacked sheet storage and the sorting/matching operations. This device includes a guide arm that extracts sheets from the stack and a lifting arm that positions them for processing. The intermediary destacking mechanism simplifies the interface between compact storage and complex sorting operations, resolving the contradiction by providing a dedicated mechanism that handles the transition without adding significant overall system complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enhances automation and efficiency in sorting and assembly, reduces labor requirements, minimizes errors, and enables flexible production line configurations.

Implementation Method 1

a lifting arm (28) mounted pivotally at one of its ends on said guide arm (26) around a horizontal axis (29) perpendicular to the direction D and at the other end on an eccentric (30) around a horizontal axis (31) perpendicular to the direction D

Methodology Applied
Scientific EffectEccentric mechanism: Eccentric

Data Source

PatentEP4596469B1Depiling device for making booklets
Publication Date: 2026.04.01 VIPS FRANCE
  • EP4596469B1 patent drawingFigure 1
  • EP4596469B1 patent drawingFigure 2~3
  • EP4596469B1 patent drawingFigure 4~5

AI summary

The present invention relates to a destacking device (10) arranged to destack sheets (9) from a stack (8) towards a receptacle (5) provided with a partially closed longitudinal end, comprising at least: - drive means (23) for driving a sheet from the stack towards the inside of the receptacle, and - a guide means for guiding each ejected sheet towards the inside of the receptacle, remarkable in that said guide means comprises at least: - a guide arm (26) extending at least partly outside the destacking device and pivotally mounted between a "waiting" position and a "feed" position, and vice versa, and - a lifting arm (28) pivotally mounted on said guide arm and on an eccentric (30).