Staking Machine Efficiency Evaluation via Laminar Sample Sheet

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Solution Overview

Problem

The efficiency and operating state of staking machines in the leather tanning industry are difficult to measure due to variations in leather parameters and mechanical component wear, leading to inconsistent softening and stretching of leather, which affects the quality of the finished product.

Innovation Solution

A method involving a laminar sample sheet made of deformable material, subjected to the same mechanical operations as the leather in a staking machine, to measure the machine's efficiency by comparing initial and final dimensions, allowing for timely adjustments and ensuring consistent quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional leather parameter measurement methods are used to evaluate staking machine efficiency, then the evaluation process is simple, but the measurement precision is poor due to variations in leather parameters and mechanical component wear

Engineering Contradiction:
Improvestaking machine efficiency measurementVSAvoidevaluation system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a laminar sample sheet as an intermediary object between the staking machine tools and the measurement system. This sample sheet serves as a standardized medium that receives the mechanical action of the staking tools and transfers the effect to be measured, eliminating the variability inherent in measuring actual leather parameters directly. The sample sheet acts as a mediator that standardizes the measurement process while maintaining relevance to the actual staking function.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention creates a simplified copy or model of the leather processing operation by using a laminar sample sheet that mimics the mechanical response of leather to staking tools. Instead of measuring complex leather parameters directly, the system uses this representative sample to capture the essential mechanical effects (stretching, softening) in a controlled, measurable way that replicates the actual process without the variability of real leather batches.

Inventive Principle:
Principle #26Copying

2Reliability

If empirical evaluations by experts are used to assess staking machine efficiency, then the evaluation method is easy to implement, but the reliability is low due to subjectivity and lack of scientific basis

Engineering Contradiction:
Improveefficiency evaluationVSAvoidmeasurement system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces subjective expert assessment with an objective mechanical measurement system. Instead of relying on human sensory evaluation of leather softness and stretching, the invention uses instrumental measurement of the laminar sample sheet's dimensional changes, providing quantifiable, repeatable data that eliminates human subjectivity while maintaining practical implementability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The measurement system utilizes optical detection methods that may involve color or reflectivity changes of the laminar sample sheet as it undergoes mechanical deformation during staking. This allows for objective, instrument-based detection of the mechanical effects (stretching, softening) that were previously assessed subjectively by experts, thereby improving reliability through scientific measurement.

Inventive Principle:
Principle #32Color changes

3Manufacturing precision

If no standardized measurement method is used, then the operation of staking machines is simple, but the manufacturing precision of leather products deteriorates due to inconsistent softening and stretching

Engineering Contradiction:
Improveleather softness and stretching consistencyVSAvoidevaluation kit
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent segments the complex leather processing evaluation into a separate, standardized component - the laminar sample sheet. By isolating the measurement function into this dedicated element, the system enables consistent, repeatable measurements of softening and stretching effects without complicating the main staking process. The sample sheet can be independently prepared, measured, and analyzed, providing manufacturing precision while keeping the overall system manageable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention focuses on measuring specific physical parameters (dimensional changes, area variation) of the laminar sample sheet that directly reflect the mechanical effects of staking (stretching, softening). By identifying and measuring these key parameters systematically, the system achieves manufacturing precision for leather quality consistency without requiring complex evaluation of all possible leather properties.

Inventive Principle:
Principle #35Parameter changes

4Stability of the object's composition

If frequent monitoring and adjustment of staking machine parameters are performed, then the quality constancy of finished products is improved, but the productivity decreases due to additional measurement and adjustment time

Engineering Contradiction:
Improvequality constancy of leatherVSAvoidproduction speed
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The patent implements preliminary measurement using the laminar sample sheet before actual leather processing. By evaluating the staking machine's mechanical effects on the sample sheet in advance, operators can adjust machine parameters to ensure optimal performance before processing valuable leather materials. This preliminary action prevents quality variations and reduces the need for corrective adjustments during production, thereby maintaining quality constancy while minimizing impact on overall productivity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The measurement system using laminar sample sheets enables operators to independently monitor and evaluate staking machine performance without requiring external quality control resources. The standardized sample provides self-contained verification of machine effectiveness, allowing for autonomous parameter adjustment and quality assurance that maintains production flow and quality consistency simultaneously.

Inventive Principle:
Principle #25Self-service

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

This method provides a scientific and reliable way to evaluate staking machine efficiency, ensuring higher quality leather products with consistent softness and extension, and enabling comparison between different machines.

Implementation Method 1

measuring the final dimensions of the laminar sample sheet once it has been subjected to the vibrating or intermittent action of the tool bodies of the staking machine; comparing the final dimensions with the initial dimensions of the laminar sample sheet

Methodology Applied
Scientific EffectDeformation: Deformation

Data Source

PatentEP2439287B1Method for evaluating the efficiency and/or operating state of a staking machine and industrial kit suitable to implement such a method
Publication Date: 2013.04.17 EQUITAN

AI summary

A method for evaluating the efficiency and/or operating state of a staking machine, especially for tanning field, comprising the operations of introducing a laminar sample sheet, made of deformable material and having predetermined initial dimensions, into a staking machine capable of softening a flexible laminar surface to be worked (semi-finished or finished) and stretching or enlarging it, submitting the laminar sample sheet to the vibrating or intermittent action of the tool bodies of the staking machine, measuring the final dimensions of the laminar sample sheet after it has been subjected to the vibrating or intermittent action of the tool bodies of the staking machine and comparing the final dimensions with the initial dimensions of the laminar sample sheet calculating the efficiency of the staking machine by difference between the dimensions.