Helical Corrugating Roller Machining for Precise Tooth Alignment

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Solution Overview

Problem

The production of corrugating rollers with helical toothing for corrugated cardboard plants is complex and inefficient, requiring advanced machinery and precise alignment to create the necessary corrugating teeth and valleys.

Innovation Solution

A method and apparatus that involve a relative displacement between a corrugating roller blank and a machining device, using a combination of drives (rotational, displacement, and swivel drives) to apply and remove material, forming a helical toothing with alternating teeth and valleys, and optionally incorporating grinding or milling processes for precise shaping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional methods are used to produce corrugating rollers with helical toothing, then the rollers can be manufactured, but the production process is complex and inefficient

Engineering Contradiction:
Improveproduction efficiencyVSAvoidmanufacturing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The invention employs dynamic relative displacement between the corrugating roller blank and the machining device during the helical toothing formation process. The machining device and roller blank move relative to each other in a controlled manner, enabling the complex helical geometry to be generated through motion rather than through complex tooling or multiple operations, thus simplifying the manufacturing process while maintaining high productivity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention introduces a temporal dimension to the machining process by using continuous relative displacement between the machining device and the roller blank. This transforms a potentially complex multi-step static machining process into a dynamic continuous process where the helical toothing is formed through the relative motion trajectory, reducing manufacturing complexity and improving efficiency

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

2Manufacturing precision

If precise alignment and shaping of corrugating teeth and valleys are achieved, then the quality of corrugated cardboard web production is improved, but the manufacturing process becomes more complex

Engineering Contradiction:
Improvealignment precisionVSAvoidmachining process complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The invention incorporates feedback mechanisms in the form of controlled relative displacement between the machining device and the roller blank. The precise alignment and shaping are achieved through regulated motion control where the position and velocity of the machining device relative to the rotating blank are precisely managed, ensuring accurate helical toothing geometry without requiring overly complex machining setups

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The relative displacement mechanism allows the system to self-regulate the machining process. The continuous motion between the machining device and the rotating blank automatically generates the helical pattern with precise geometry through the kinematic relationship between the two components, reducing the need for complex alignment procedures and manual intervention

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

The method enables the efficient and reliable production of corrugating rollers with improved helical toothing, enhancing the production of corrugated cardboard webs by simplifying the manufacturing process and ensuring precise alignment and shaping of the corrugating teeth and valleys.

Implementation Method 1

The at least one machining device is capable of applying material to and/or removing material from the corrugating roller blank in order to produce the corrugating roller helical toothing

Methodology Applied
Scientific EffectAbrasion: Abrasion

Implementation Method 2

The machining device has, for example, at least one negative (shape) region in relation to the corrugating roller helical toothing, in particular of at least one corrugating tooth and/or corrugating valley thereof, which is active during the machining

Methodology Applied
Scientific EffectGrinding: Abrasion

Data Source

PatentUS20240391006A1Corrugating roller manufacturing method, corrugating roller manufacturing apparatus, and corrugating roller
Publication Date: 2024.11.28 BHS CORRUGATED MACHINEN UND ANLANGENBAU GMBH
  • US20240391006A1 patent drawing
  • US20240391006A1 patent drawing
  • US20240391006A1 patent drawing

AI summary

The present application relates to a method and to an apparatus (12) for producing a corrugating roller, with a corrugating roller helical toothing having corrugating teeth (7). The method comprises the steps of providing a corrugating roller blank (1) which has a corrugating roller blank central longitudinal axis (3), and machining the corrugating roller blank (1) by means of a machining apparatus (12) having at least one machining device (16), with a relative displacement between the corrugating roller blank (1) and the at least one machining device (16), thereby producing the corrugating roller helical toothing. The present application further relates to a corrugating roller with an improved corrugating roller helical toothing.