Rotating Lead-Cutting Container for Scrap Containment

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Solution Overview

Problem

Existing lead-cutting systems face challenges in ensuring appropriate containment of lead scraps within a container, particularly during the cutting process, as they may fly out due to the movement and rotation of the cutting device.

Innovation Solution

The system incorporates a container that rotates with the cutting device, featuring inclined plates and shielding structures to guide and prevent lead scraps from escaping, ensuring they are contained effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the cutting device rotates during the cutting process, then the cutting device can perform cutting operations from multiple angles and positions, but lead scraps may fly out of the container due to the rotation and movement

Engineering Contradiction:
Improvecutting angle adjustmentVSAvoidlead scraps containment
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The container is designed to rotate together with the cutting device, transforming from a static to a dynamic containment structure. This dynamic coupling ensures that the container maintains proper orientation relative to the cutting position throughout the rotation, allowing the cutting device to access multiple angles while the container continuously adjusts to keep lead scraps contained through gravity and proper orientation

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The solution adds the rotational dimension to the container's movement, matching the cutting device's rotational motion. By making the container rotatable rather than fixed, the system resolves the contradiction between needing rotational freedom for versatile cutting and maintaining reliable lead scraps containment through synchronized dimensional movement

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If the container is fixed and does not rotate, then the container structure is simple and stable, but lead scraps cannot be appropriately contained when the cutting device rotates

Engineering Contradiction:
Improvecontainer structureVSAvoidlead scraps containment
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The container is merged with the rotating assembly of the cutting device, so they rotate together as a coordinated unit. This combination ensures that the container's position and orientation are automatically synchronized with the cutting operation, providing reliable lead scraps containment without requiring complex independent control mechanisms or additional stabilization systems

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the container rotates with the cutting device, then lead scraps can be effectively contained during rotation, but the container and cutting device must be precisely coordinated in their movement

Engineering Contradiction:
Improvelead scraps containmentVSAvoidsynchronization mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The container is merged with the rotating assembly so they share the same rotational motion and axis. This physical integration eliminates the need for separate synchronization mechanisms, sensors, or control systems, as the container naturally follows the cutting device's rotation through its coupled positioning

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3780930B1Lead-cutting system, and lead component installation system
Publication Date: 2026.04.08 FUJI CORP
  • EP3780930B1 patent drawingFigure 1
  • EP3780930B1 patent drawingFigure 2
  • EP3780930B1 patent drawingFigure 3

AI summary

A lead-cutting system, comprising: a rotation device configured to rotate a rotary table; a cutting device, being disposed on the rotary table, which is configured to cut leads of a lead component inserted into through-holes in a board; and a container, being disposed on the rotary table together with the cutting device, which contains leads cut by the cutting device.