Shot-Blasting Machine Automated Pusher Loading Unloading

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Solution Overview

Problem

Traditional shot-blasting machines require manual loading and unloading, which is costly, labor-intensive, and space-consuming, and the integration with separate robots increases installation, control, and maintenance costs, as well as complicates operations.

Innovation Solution

An automated shot-blasting machine with integrated loading and unloading mechanisms, utilizing a centrifugal projecting system and a rotating cage with automated pusher elements to move products through a conveyor belt or roller plane, allowing for efficient and space-efficient surface treatment without the need for additional personnel or large machinery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual loading and unloading is used, then labor costs and operational complexity are reduced, but productivity and efficiency deteriorate

Engineering Contradiction:
ImproveproductivityVSAvoidautomation of loading and unloading
Core Design Contradiction:
ProductivityVSExtent of automation

Solution Approach 1:

The patent combines the loading/unloading function with the shot-blasting chamber by integrating pusher organs directly into the chamber structure. These pusher organs are positioned to automatically advance products onto and off the treatment surface without requiring external robotic systems or manual intervention, thus merging two separate operations into one unified system.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The pusher organs are configured to automatically perform the loading and unloading operations as products pass through the chamber. The system serves itself by using the movement of products through the chamber to trigger the pusher mechanism, which then automatically positions products for treatment and removes them afterward, eliminating the need for external automation systems.

Inventive Principle:
Principle #25Self-service

2Extent of automation

If articulated robots are used for loading and unloading, then automation is improved, but device complexity and installation costs worsen

Engineering Contradiction:
Improveautomation of product manipulationVSAvoidcomplexity of integrated systems
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The patent merges the product manipulation function directly into the shot-blasting chamber structure. The pusher organs are integrated components of the chamber rather than separate robotic systems, eliminating the need for complex articulation mechanisms, sensors, and control systems that would be required for articulated robots.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the complex robotic manipulation system and replaces it with a simplified pusher mechanism that is directly integrated into the chamber. This extraction removes the unnecessary complexity of articulated robots while retaining the essential function of automated product handling.

Inventive Principle:
Principle #2Taking out (Extraction)

3Extent of automation

If articulated robots are used for loading and unloading, then automation is improved, but maintenance costs and operational expenses worsen

Engineering Contradiction:
Improveautomation of loading and unloadingVSAvoidinstallation and maintenance costs
Core Design Contradiction:
Extent of automationVSEase of manufacture

Solution Approach 1:

The patent employs simple pusher organs that are structurally basic and easy to manufacture, replacing expensive articulated robots. These pusher components are designed to be simple mechanical elements that can be easily fabricated, installed, and maintained, significantly reducing both initial investment and ongoing maintenance costs while performing the required automation function.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The pusher organs are designed to operate automatically without requiring complex control systems, sensors, or programmable logic that would increase maintenance costs. The system uses the natural movement of products through the chamber to trigger the pusher mechanism, eliminating the need for expensive automation control infrastructure.

Inventive Principle:
Principle #25Self-service

4Adaptability or versatility

If fork-lift trucks or lifting devices are used, then product handling capability is improved, but space requirements and manoeuvring area worsen

Engineering Contradiction:
Improveproduct handling capabilityVSAvoidmanoeuvring space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent combines the product advancement function with the shot-blasting chamber by positioning the advancing line adjacent to the chamber and using pusher organs integrated into the chamber structure. This merging eliminates the need for separate fork-lift trucks or lifting devices that would require additional manoeuvring space, as the entire handling process occurs within or immediately adjacent to the treatment chamber.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from three-dimensional manoeuvring space required by fork-lift trucks to a two-dimensional planar advancement system. Products move along an advancing line in a single direction and are processed by pusher organs that act perpendicular to the movement direction, eliminating the need for vertical lifting and complex spatial manoeuvring.

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

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 machine enables efficient, cost-effective, and space-saving surface treatment of products with reduced labor and operational costs, simplifying the process and improving productivity by automating the loading and unloading of products within a compact system.

Implementation Method 1

a system based on centrifugal force, project particles against a surface of one or more products

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

a compressed-air propelling system, project particles against a surface of one or more products

Methodology Applied
Scientific EffectCompressed air:

Data Source

PatentEP2178677B1A shot-blasting machine for surface treatment of products
Publication Date: 2010.11.17 C M SURFACE TREATMENT
  • EP2178677B1 patent drawingFigure 1
  • EP2178677B1 patent drawingFigure 2
  • EP2178677B1 patent drawingFigure 3

AI summary

The shot-blasting machine for surface treatment of products comprises a base frame, a containing chamber for containing at least a product to be treated associated to the base frame and provided with at least an access opening, one or more projecting organs associated internally of the chamber for projecting a flow of shot-blasting particles onto the product, and automated unloading means associated to the base frame which cause the product to exit from the chamber through the access opening.