Article Sorting Control for Passage Chute Jam Prevention

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Solution Overview

Problem

Large articles can get stuck in passage ports in subsequent stages of the conveying unit, leading to operational inefficiencies and potential damage to downstream devices.

Innovation Solution

An article sorting determination device that includes a conveying unit, acquisition and control units to determine if an article is larger than the passage port, and outputs a sorting signal to prevent articles from getting stuck by sorting them before or after cutting, using X-ray inspection for additional checks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the conveying unit continues to convey all articles without sorting, then productivity is maintained, but articles larger than the passage port width will get stuck in downstream passage ports causing operational inefficiencies and potential damage

Engineering Contradiction:
Improveprevention of articles getting stuckVSAvoidconveying efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The determination device performs preliminary identification of articles that would get stuck in downstream passage ports before they reach those ports. By measuring article dimensions and comparing them with passage port widths in advance, the system can sort problematic articles beforehand, preventing them from causing operational inefficiencies or damage downstream while maintaining overall conveying productivity.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the system measures and compares article size with passage port width to prevent getting stuck, then reliability improves, but device complexity increases due to additional measurement and control components

Engineering Contradiction:
Improveprevention of articles getting stuckVSAvoidsorting determination system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The determination device integrates multiple functions into a single system: it measures article dimensions, compares them with stored passage port width data, determines potential blocking issues, and controls the sorting mechanism. This multi-functional approach prevents articles from getting stuck while avoiding the need for separate measurement, comparison, and control systems, thereby limiting the increase in device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If articles are sorted before cutting to prevent getting stuck, then reliability improves, but the timing and coordination complexity increases due to additional sorting operations

Engineering Contradiction:
Improveprevention of articles getting stuckVSAvoidcoordination of sorting and cutting operations
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs size measurement and blocking determination before the cutting operation occurs. By identifying articles that would get stuck in downstream passage ports in advance, the control unit can coordinate the sorting action to occur before cutting, ensuring that only appropriately sized articles proceed to the cutting stage. This preliminary determination simplifies coordination by establishing sort criteria before the cutting process begins.

Inventive Principle:
Principle #10Preliminary action

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

Prevents articles from getting stuck in passage ports, ensuring smooth operation and reducing damage to downstream devices by accurately sizing and sorting articles based on their dimensions and contents.

Implementation Method 1

an X-ray irradiation unit configured to irradiate the article being conveyed by the conveying unit with X-rays, a detection unit configured to detect the X-rays transmitted through the article

Methodology Applied
Scientific EffectX-ray transmission: X-Ray

Data Source

PatentEP4501474B1Article sorting determination device
Publication Date: 2026.03.25 ISHIDA CO LTD
  • EP4501474B1 patent drawingFigure 1
  • EP4501474B1 patent drawingFigure 2
  • EP4501474B1 patent drawingFigure 3

AI summary

Article sorting determination device (50) that can help prevent an article (G) from getting stuck in a passage port in a subsequent stage, including a conveying unit (5) configured to convey an article (G), an X-ray detection unit (7) configured to acquire first information relating to a size of the article (G) being conveyed by the conveying unit (5), a storage unit (10E) configured to acquire second information relating to a width of a passage chute (36), and a control unit (10) configured to output a sorting signal for sorting the article (G) from the conveying unit (5) when determining that the article (G) would get stuck in the passage chute (36) on the basis of the first information and the second information.