Conveyor Weighing Bracket Positive-Lock Calibration

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Solution Overview

Problem

Existing methods for adjusting conveying and dosing devices are complex, time-consuming, and prone to errors due to mechanical uncertainties and environmental factors, particularly when accessing and attaching test weights is difficult, especially in enclosed systems.

Innovation Solution

A conveying and dosing device with a bearing bracket featuring a projecting extension and recess for a positive-locking attachment of a test weight, allowing external attachment and removal during operation, ensuring direct force transmission without distortion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If test weights are attached to the weighing device for adjustment, then the weighing device can be calibrated, but the process becomes complex and time-consuming due to difficult access in enclosed systems

Engineering Contradiction:
Improveweighing accuracyVSAvoidadjustment complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

A holder is introduced as an intermediary component that simplifies the attachment of test weights to the weighing device. The holder can be easily attached and detached from the weighing device, providing a convenient interface for calibration operations without requiring direct manipulation of the weighing device itself.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The holder is designed to be dynamically attachable and detachable from the weighing device, allowing flexible access for calibration operations. This dynamic connection enables operators to easily attach test weights during maintenance periods without permanent modifications to the weighing device.

Inventive Principle:
Principle #15Dynamics

2Measurement precision

If test weights are attached to the weighing device, then calibration can be performed, but the process takes excessive time especially with enclosed conveying devices

Engineering Contradiction:
Improveweighing accuracyVSAvoidadjustment time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The holder is pre-positioned on the weighing device during manufacturing, so that during operation only the test weight needs to be attached to the holder for calibration. This preliminary setup significantly reduces the time required for calibration operations compared to attaching test weights directly to the weighing device.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The holder serves as a mediator that enables quick attachment and detachment of test weights. By separating the attachment mechanism from the weighing device itself, the calibration process becomes faster and simpler, especially for enclosed conveying devices where access is limited.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If permanent holders are installed on the conveying device for test weights, then adjustment is facilitated, but the holders may protrude and be affected by external factors like dirt and wind

Engineering Contradiction:
Improveadjustment easeVSAvoidenvironmental interference
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The holder is designed with a dynamic attachment system that allows it to be securely fixed during calibration operations but easily removed when not in use. This dynamic capability enables the holder to be positioned inside the enclosed conveying device during calibration, protecting it from environmental factors like dirt and wind, while still providing easy access for operators.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The holder can be nested within or attached to existing components of the conveying device, such as the frame or support structures, in a position that is protected from external environmental factors. This nesting approach allows the holder to remain accessible for calibration while being shielded from dirt, wind, and other harmful external influences.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

Facilitates quick and accurate adjustment of weighing devices by enabling easy and secure attachment of test weights, reducing mechanical uncertainties and operational complexity.

Implementation Method 1

The bearing bracket (22) is designed in such a way that it can be positively locked to an attachment (3)

Methodology Applied
Scientific EffectPositive-locking connection: Mechanical Fastener

Implementation Method 2

a test weight (4), in particular in the form of a commercial weight, which can be loosely placed on the attachment (3)

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentEP3615898B1Calibrating a conveyor and metering device
Publication Date: 2026.03.04 QLAR EUROPE GMBH
  • EP3615898B1 patent drawingFigure 1~2
  • EP3615898B1 patent drawingFigure 3
  • EP3615898B1 patent drawingFigure 4~5

AI summary

The invention relates to a conveyor and metering device comprising an endless conveyor belt (5), wherein sub-regions of the conveyor belt (5) are mounted on weighing devices (2) in order to ascertain the mass of the conveyed goods, said weighing devices being connected to an electronic analysis device. The weighing devices generate a signal which is proportional to the load on the conveyor belt (5) and transmit same to the analysis device. The conveyor and metering device is provided with weighing devices (2) with a respective bearing bracket (22) which is used to receive an attachment (3) from the outside, preferably from above through an opening in the frame of the conveyor and metering device, in a formfitting manner during a conveyor operation.