Vibratory Bowl Feed Platform for Jam-Free Component Gripping

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Solution Overview

Problem

Existing watch component distribution systems in automatic assembly installations are unreliable due to component accumulation and jamming, leading to manual intervention and increased production costs from components not being correctly gripped by the gripping arm, resulting in losses.

Innovation Solution

A system featuring a vibrating bowl with an ascending helical ramp and a supply platform connected to the bowl, equipped with a presence detector and sorting/selection device, and an articulated gripping arm, which ensures controlled distribution and orientation of components, minimizing losses and damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a conventional vibrating bowl with ramp and feed passage is used, then components can be distributed to the gripping arm, but components accumulate on the ramp or jam in the feed passage causing malfunctions

Engineering Contradiction:
Improvecomponent distribution speedVSAvoidsystem operational reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The supply platform is positioned above or within the vibratory bowl enclosure, allowing components to be oriented and prepared on the platform before being transferred to the gripping arm. This preliminary arrangement prevents accumulation and jamming by ensuring components are properly positioned in advance, eliminating the need for manual intervention and maintaining continuous operation.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If components are not correctly gripped by the gripping arm, then distribution continues, but components fall outside the vibrating bowl causing losses and increased costs

Engineering Contradiction:
Improvedistribution continuityVSAvoidcomponent loss
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

A presence detector is integrated into the supply platform to detect whether a component is correctly positioned for gripping. This feedback mechanism allows the system to verify component presence and orientation before the gripping arm attempts to pick up the component, preventing incorrect gripping and subsequent component loss, thereby maintaining both productivity and reducing waste.

Inventive Principle:
Principle #23Feedback

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

The system enhances the reliability of component distribution by optimizing sorting and reducing losses and damage through systematic recovery of components on the supply platform, ensuring correct gripping and distribution to the automatic assembly installation.

Implementation Method 1

a vibrating bowl provided with an enclosure having a wall extending all around an axis of revolution of the bowl into which said components are introduced in bulk

Methodology Applied
Scientific EffectVibration: Vibration

Implementation Method 2

an ascending helical ramp extending along an internal face of said wall between a bottom and an upper edge of said vibrating bowl

Methodology Applied
Scientific EffectHelical ramp mechanism: Helix

Data Source

PatentEP3502016B1System for controlled distribution of components
Publication Date: 2022.03.02 ETA SA MFG HORLOGERE SUISSE
  • EP3502016B1 patent drawingFigure 1~2
  • EP3502016B1 patent drawingFigure 3

AI summary

The invention relates to a controlled distribution system (1) for components (2), the system (1) comprising: - a vibrating bowl (3) provided with an enclosure (4) having a wall (6) extending all around an axis of revolution of the bowl (3) and into which said components (2) are introduced in bulk, and - an articulated gripping arm (10) provided for ensuring the distribution of said components (2) to said automatic assembly installation (100), the vibrating bowl (3) comprising an ascending helical ramp (5) extending along an inner face of said wall (6) between a bottom and an upper edge (7) of said vibrating bowl (3) constituting an outlet (S) of said ramp (5), said components (2) being capable of traveling along this ramp (5) towards a feeding platform (8), in particular a slide, on which at least one component (2) is disposed in anticipation of its being grasped by the articulated gripping arm (10),said feeding platform (8) being connected to said outlet (S) and extending above or within the enclosure (4) of the vibrating bowl (3).