Automatic Feeder for Abrasive Disc Reel Replacement

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Solution Overview

Problem

Current machines for producing abrasive discs require manual intervention and extended downtime for replacing empty reels, necessitating operator supervision and reducing productivity.

Innovation Solution

An automatic feeder system that includes an orientation assembly with a presser element and detection means to retain and position the strip end, a gripping device to transfer the strip to a cutting assembly, and a control module to coordinate operations, allowing for automatic replacement of empty reels without operator intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual reel replacement is used, then device complexity is reduced, but productivity decreases and loss of time increases

Engineering Contradiction:
Improvemachine productivityVSAvoidfeeder system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The orientation assembly retains the free end of the strip in a predetermined waiting position before the gripping device needs it, preparing the material in advance for automatic pickup and feeding, thereby enabling continuous operation without manual intervention

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The gripping device automatically detects and grasps the free end of the strip from the waiting position, and the feeding device automatically transports it to the cutting assembly without operator intervention, making the system self-servicing for reel replacement operations

Inventive Principle:
Principle #25Self-service

2Loss of time

If manual reel replacement is used, then device complexity is reduced, but loss of time increases

Engineering Contradiction:
Improvedowntime for reel replacementVSAvoidfeeder system complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The orientation assembly prepares the free end of the strip in advance by retaining it in a waiting position, so that when the reel needs replacement, the material is already positioned and ready for immediate automatic pickup, eliminating waiting time

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The automatic gripping and feeding devices enable continuous operation of the cutting assembly without interruption for reel replacement, maintaining the useful action of material processing without downtime

Inventive Principle:
Principle #20Continuity of useful action

3Productivity

If automatic reel replacement is implemented, then productivity increases, but ease of operation decreases

Engineering Contradiction:
Improvemachine productivityVSAvoidoperator supervision requirement
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The gripping device automatically detects the free end of the strip and grasps it without operator intervention, and the feeding device automatically transports it to the cutting assembly, making the system self-servicing and eliminating the need for operator supervision during reel replacement

Inventive Principle:
Principle #25Self-service

4Loss of time

If automatic reel replacement is implemented, then loss of time decreases, but device complexity increases

Engineering Contradiction:
Improvedowntime for reel replacementVSAvoidfeeder system complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The feeder system is divided into distinct functional modules: orientation assembly for positioning, gripping device for pickup, and feeding device for transport. This segmentation allows each component to perform its specific function efficiently while maintaining overall system automation and reducing downtime

Inventive Principle:
Principle #1Segmentation

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

Enables fully automatic replacement of empty reels, significantly reducing machine downtime and enhancing productivity by minimizing the need for manual intervention and operator supervision.

Implementation Method 1

The orientation assembly (10) comprises at least one presser element (12), structured to press and retain the free end (T) of the strip (L) on the gripping plane (11)

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

The orientation assembly (10) comprises a detection means (16) provided to detect the correct location of the free end (T) in the gripping position on the gripping plane (11)

Methodology Applied
Scientific EffectOptical Detection: Photoelectric Effect

Data Source

PatentEP3312112B1An automatic feeder
Publication Date: 2020.12.02 RI FLEX ABRASIVES SRL
  • EP3312112B1 patent drawingFigure 1
  • EP3312112B1 patent drawingFigure 2

AI summary

An automatic feeder for a strip of material, comprising: an orientation assembly (10), structured to retain a free end (T) of a strip (R) on a predetermined gripping plane (11), in a waiting position; a gripping device (20), structured to grasp the free end (T) of a strip (R) and to translate the end (T) from the waiting position to a feeding position, in which the end (T) can be grasped by another operating device (D).