Rotating Disc Clay Applicator for Homogeneous Layering

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Solution Overview

Problem

Existing mechanical devices for applying clay in model production face challenges in ensuring the intimate connection and homogeneity of the clay layer, particularly when feeding clay onto an already applied layer and maintaining consistency.

Innovation Solution

A device with a housing and a connection socket for a clay supply hose, featuring a rotatable disc with a delivery opening and a wobbler mechanism to massage the clay onto the surface, ensuring even application and homogeneity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If mechanical devices are used to apply clay, then productivity is improved, but manufacturing precision deteriorates due to lack of homogeneity in the clay layer

Engineering Contradiction:
Improvemodel making speedVSAvoidclay layer homogeneity
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent employs a rotating disc with variable speed control to dynamically adjust the clay application process. The rotation speed can be varied to optimize both the speed of application and the homogeneity of the clay layer, resolving the contradiction between productivity and manufacturing precision.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotating disc creates periodic motion in the clay application process, where the disc rotates to continuously feed and distribute clay material. This periodic action ensures uniform distribution of clay while maintaining high application speed, addressing both productivity and homogeneity requirements.

Inventive Principle:
Principle #19Periodic action

2Ease of operation

If clay is fed through a supply line to a moving device, then ease of operation is improved, but manufacturing precision deteriorates due to inconsistency in clay consistency from center to edge

Engineering Contradiction:
Improveclay feeding capabilityVSAvoidclay consistency uniformity
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The rotating disc dynamically processes the clay as it exits the supply line, using centrifugal force and rotational motion to homogenize the clay material. This dynamic action compensates for the non-uniformity that would otherwise occur from center to edge, maintaining consistent clay application while preserving ease of operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotating disc acts as an intermediary between the clay supply line and the application surface. It receives clay from the supply line and processes it through rotation before application, ensuring uniform consistency is achieved during the intermediate processing stage.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If clay is applied mechanically to achieve intimate connection, then productivity is improved, but reliability deteriorates due to poor adhesion to the surface

Engineering Contradiction:
Improveapplication speedVSAvoidclay adhesion
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The rotating disc creates dynamic motion that presses the clay against the surface during application, enhancing adhesion through mechanical pressure and friction. This dynamic application method ensures reliable bonding while maintaining high application speed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotation of the disc introduces mechanical vibration and motion to the clay application process, which helps the clay material settle and bond more effectively to the surface. This vibration effect improves adhesion reliability without reducing productivity.

Inventive Principle:
Principle #18Mechanical vibration

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 device simplifies and accelerates the model-building process by ensuring a uniform and intimate connection of the clay layer, improving the homogeneity and consistency of the applied clay.

Implementation Method 1

The raised area...serves to massage the clay onto (and into) the surface through its circular movements

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4341065B1Device for applying clay to a surface
Publication Date: 2025.05.14 STAEDTLER SE
  • EP4341065B1 patent drawingFigure 1
  • EP4341065B1 patent drawingFigure 2
  • EP4341065B1 patent drawingFigure 3

AI summary

The invention relates to a device (2) for applying clay to a surface (4), in particular for producing models, comprising a housing (6) with a connection piece (8) for a clay supply hose and with a clay dispensing opening (19), characterized by a disk (14) that - is rotatably seated in a clay dispensing flange opening (12) in a clay-tight manner and is driven by a motor, - has the dispensing opening (19) and otherwise closes off the flange opening (12), and - has an elevated portion (20) on its exterior.