Multi-Channel Pressing Head for Consistent Briquette Quality

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Solution Overview

Problem

Existing briquetting presses are unsuitable for materials with high inhomogeneity, such as metal shavings, due to their inability to maintain a consistent pressing force and limited capacity per stroke, and are inefficient in handling varying chip sizes.

Innovation Solution

A press head with individually adjustable press channels and elements, allowing for separate control of the cross-section and holding force in each channel, ensuring consistent briquette quality despite material inhomogeneity, and enabling simultaneous pressing of multiple briquettes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a constant static preload force is applied to the pressing element, then the pressing force is stable and predictable, but the briquette quality becomes inconsistent when handling inhomogeneous materials

Engineering Contradiction:
Improvepressing force stabilityVSAvoidbriquette quality consistency
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent transitions from a static spring-based preload system to a dynamic adjustable pressing element system. The pressing element can be individually adjusted for each press channel to apply optimal holding force adapted to the specific material properties, enabling consistent briquette quality despite material inhomogeneity while maintaining force stability through controlled adjustment.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent enables changing the pressing parameters (holding force, cross-section) individually for each press channel based on material characteristics. This allows optimization of pressing conditions for different material types and sizes, ensuring consistent briquette quality across varying material inhomogeneity while maintaining reliable pressing force through parameter control.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If a single press channel is used, then the pressing process is simple to control, but the processing capacity per stroke is limited

Engineering Contradiction:
Improvecontrol simplicityVSAvoidprocessing capacity per stroke
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent divides the pressing system into multiple independent press channels, each capable of processing material simultaneously. This segmentation increases processing capacity per stroke while maintaining operational simplicity through standardized, replicable channel designs that can be independently controlled or collectively managed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent creates universal press channels that can handle different material types and sizes through individual adjustment capabilities. Each channel serves multiple functions (processing different materials, adjusting cross-sections, varying holding forces) while maintaining a unified system architecture that preserves control simplicity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Device complexity

If the press channel cross-section is fixed, then the device structure is simple, but it cannot accommodate varying chip sizes and material inhomogeneity

Engineering Contradiction:
Improvepress channel structureVSAvoidmaterial size accommodation
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent introduces adjustable cross-sections in press channels that can be individually modified to accommodate different material sizes and types. This dynamic adjustment capability enables the system to adapt to material inhomogeneity while maintaining relatively simple device structure through modular adjustment mechanisms rather than complex reconfigurable systems.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If holding force is not adjusted, then the device operation is straightforward, but subsequent briquettes encounter insufficient resistance affecting quality

Engineering Contradiction:
Improvedevice operation simplicityVSAvoidbriquette quality
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent implements individually adjustable holding forces for each press channel that can be optimized based on material properties and pressing requirements. This dynamic adjustment ensures sufficient resistance is applied to subsequent briquettes for quality consistency while maintaining straightforward operation through standardized adjustment procedures and controls.

Inventive Principle:
Principle #15Dynamics

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 solution ensures high-quality briquettes with consistent properties by maintaining a constant holding force and increased processing capacity, accommodating materials with varying sizes and compositions.

Implementation Method 1

The press head from DE 1627914 is equipped with a spring that exerts a constant static preload force on the pressing element.

Methodology Applied
Scientific EffectSpring: Spring

Data Source

PatentEP3551445B1Pressing head, device for pressing material to be pressed, and method for pressing material to be pressed
Publication Date: 2026.01.21 RUF MASCHBAUU
  • EP3551445B1 patent drawingFigure 1
  • EP3551445B1 patent drawingFigure 2
  • EP3551445B1 patent drawingFigure 3

AI summary

The invention relates to a pressing head (100) for a device for pressing material to be pressed, in particular for pressing chips, in particular an extrusion press. The pressing head (100) comprises at least two pressing channels (1, 1'), each having an inlet opening (11, 11') and an outlet opening (12, 12'). Each pressing channel (1, 1') has a stationary supporting element (2, 2') and a movable pressing element (3, 3'). The pressing element (3, 3') is movable on one side, preferably relative to the supporting element (2, 2'). A cross-section (QA) of the pressing channel at the outlet opening of the pressing channel can be varied relative to the cross-section (QE) of the pressing channel at the inlet opening of the pressing channel.