Hardened Metal Wire Guide Insert for Low-Wear Baler Deflection

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Solution Overview

Problem

Existing baler designs experience significant wear in the wire deflection mechanism due to friction between the steel wire and the bale channel wall, leading to undesired wear and requiring costly and space-intensive roller deflections or hard metal components.

Innovation Solution

A baler with a wire deflection system featuring a carrier plate and a hard metal insert with a recess for wire guidance, where the depth of the recess decreases from the front to the rear, providing effective wire guidance with a long service life, and is easily assembled and space-saving.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the wire is deflected against the fixed surface of the bale channel wall, then the wire guidance function is provided, but significant wear occurs due to friction between the wire and the wall

Engineering Contradiction:
Improvewire guidance functionVSAvoidservice life of wire deflection
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The invention changes the material parameter of the wire deflection component by using hardened metal (rockwell hardness > 50 HR) instead of ordinary metal. This parameter change dramatically reduces wear while maintaining the wire guidance function, resolving the contradiction between reliability and service life.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention applies a hardened metal coating on the carrier material, creating a composite structure where the carrier provides mechanical support and the hardened coating provides wear resistance. This composite approach enables the wire deflection to withstand friction without significant wear, extending service life while maintaining functionality.

Inventive Principle:
Principle #40Composite materials

2Duration of action of stationary object

If rollers are used to deflect the wire, then wear is reduced, but manufacturing cost and space requirements increase

Engineering Contradiction:
Improveservice life of wire deflectionVSAvoidmanufacturing and maintenance complexity
Core Design Contradiction:
Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The invention extracts only the essential function of rollers (reducing wear during wire deflection) and implements it through a simplified hardened metal surface instead of a complete roller mechanism. This extraction maintains the wear-reduction benefit while eliminating the complexity of roller manufacturing, mounting, and maintenance.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The hardened metal insert is designed as a simple, inexpensive component that can be easily replaced when worn, rather than using expensive rollers that require complex maintenance. The simplicity of the insert makes it more cost-effective despite being a stationary component.

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

3Duration of action of stationary object

If hard metal components are used for wire deflection, then wear resistance is improved, but manufacturing cost increases

Engineering Contradiction:
Improveservice life of wire deflectionVSAvoidmanufacturing cost
Core Design Contradiction:
Duration of action of stationary objectVSEase of manufacture

Solution Approach 1:

The invention segments the wire deflection component into a carrier material and a hardened metal coating layer. This segmentation allows the expensive hardened metal to be applied only where needed (the wire contact surface) rather than requiring the entire component to be made of hard metal, reducing overall manufacturing cost while maintaining wear resistance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention changes the surface property parameter of the carrier material by applying a hardened metal coating, rather than manufacturing the entire component from expensive hard metal. This parameter change at the surface level provides wear resistance at a lower cost than bulk hard metal construction.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3333089B1Wire guidance with hardened metal insert
Publication Date: 2021.03.17 UNOTECH GMBH
  • EP3333089B1 patent drawingFigure 1~3
  • EP3333089B1 patent drawingFigure 4
  • EP3333089B1 patent drawingFigure 5

AI summary

The invention relates to a wire deflection for a baling press, with a carrier plate (2) which is designed to be held in a receptacle of a baling press, and with a hard metal insert (3) which has a recess (20) for wire guidance, extending from a front side (18) towards a rear side (19) of the hard metal insert (3), the depth of the recess (20) decreasing from the front side (18) of the hard metal insert (3) to the rear side (19).