Revolver Tool Carrier Gripper Head for Fast Tool Changes

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Solution Overview

Problem

Existing sorting apparatuses in cutting plants face inefficiencies due to time-consuming tool-changing operations, which are not compatible with the compact design requirements of multi-tool heads needed for handling workpieces of varying sizes and materials.

Innovation Solution

A gripping head with a revolver-shaped tool carrier that integrates multiple tools, allowing tool selection and change without displacing the head, using a rotary actuator and releasable engagement means to maintain tool continuity and flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple tools are mounted directly onboard the operating head, then tool changing time is eliminated and versatility is improved, but the footprint and bulk of the gripping head increases significantly

Engineering Contradiction:
Improvetool changing timeVSAvoidfootprint of gripping head
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The patent implements a nested structure where a revolver-shaped tool carrier is positioned inside the gripping head housing. Multiple tools are arranged radially around a central axis within the confined space of the gripping head, allowing tools to be stored compactly without increasing the external footprint. The tool carrier rotates about a horizontal axis to bring selected tools into the operating position, enabling rapid tool changing while maintaining a compact overall dimensions suitable for close-quarter handler operations

Inventive Principle:
Principle #7Nested doll (Nesting)

2Area of stationary object

If a separate tool carrier is used for tool changing, then the gripping head footprint is reduced, but idle time is consumed during tool changing operations

Engineering Contradiction:
Improvefootprint of gripping headVSAvoididle time during tool changing
Core Design Contradiction:
Area of stationary objectVSLoss of time

Solution Approach 1:

The patent implements preliminary action by pre-positioning multiple tools on the revolver-shaped carrier within the gripping head. Tools are arranged in advance on the rotating carrier, with at least one tool always positioned in the operating position ready for immediate use. This eliminates the need for separate tool changing operations, as the required tool is already prepared and positioned within the gripping head, thereby eliminating idle time during tool changing while maintaining a compact footprint

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If multiple tools are integrated onboard, then versatility for handling different workpieces is improved, but the device complexity increases

Engineering Contradiction:
Improveversatility for different workpiecesVSAvoidcomplexity of multi-tool head
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements universality by designing a revolver-shaped tool carrier that can hold and rapidly switch between multiple different gripping tools. Each tool is configured for specific workpiece types, and the rotating carrier mechanism provides a universal interface for tool selection. This allows a single gripping head to perform multiple functions and handle various workpiece materials, thicknesses, and sizes by simply rotating to the appropriate tool position, thereby achieving versatility without proportionally increasing overall system complexity

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

Data Source

PatentUS12515354B2Multi-tool gripper head of a sorting apparatus and operating method thereof
Publication Date: 2026.01.06 ASTES4 SA
  • US12515354B2 patent drawing
  • US12515354B2 patent drawing
  • US12515354B2 patent drawing

AI summary

A gripping head for a handler in a sorting machine and an operating method thereof is disclosed. The gripping head includes: a support frame; a gripping tool having a socket for a control line and a first retainer; a revolver-shaped carrier on the support frame having a first releasable engagement unit coupled with the corresponding first retainer, the gripping tools furthermore having a second retainer; and a transfer platform equipped with second releasable engagement unit coupled with the second retainer. The transfer platform moves on the support frame between: a home position wherein the first retainers are engaged with the first releasable engagement unit of the carrier; an attachment position wherein the second releasable engagement units are coupled with the second retainer; and an operating position wherein the first retainers are uncoupled from the first releasable engagement units and the selected gripping tool is spaced away from the carrier.