Adjustable Crimping Roller with Displaceable Bushings

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Solution Overview

Problem

Adjusting crimping rollers for sheet materials requires high precision and skilled personnel due to micrometre-scale tolerances, leading to time-consuming and complex adjustments that can degrade product quality if not done correctly.

Innovation Solution

An adjustable roller mechanism with displaceable bushings allows for fine adjustments of the longitudinal axis of rotation through adjustable fixings and orbital displacement, enabling quick and precise alignment of crimping rollers without repositioning the external frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a crimping device is designed to accommodate multiple sheet material widths, then versatility is improved, but device complexity increases due to multiple fixed rollers for different widths

Engineering Contradiction:
Improveaccommodation of different sheet material widthsVSAvoidnumber of fixed rollers for different widths
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The roller assembly is designed to be movable along the crimping device body rather than fixed, allowing a single roller to adapt to different sheet material widths. The roller can be positioned at different locations along the body to accommodate various widths, eliminating the need for multiple fixed rollers for different widths.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A single roller assembly serves multiple functions by being adjustable to different positions along the crimping device body. This universal roller can accommodate various sheet material widths through its movable design, replacing what would traditionally require multiple specialized rollers for different widths.

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

2Manufacturing precision

If fixed rollers are used for specific sheet widths, then manufacturing precision is maintained for that width, but adaptability to other widths is lost

Engineering Contradiction:
Improvecrimping precision for specific widthVSAvoidadjustability to different widths
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The roller assembly incorporates movable components that allow it to be repositioned along the crimping device body. This dynamic design enables the roller to maintain precise crimping contact for different sheet material widths while preserving manufacturing precision, as the roller can be adjusted to the appropriate position for each width rather than being fixed for a single width.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If multiple crimping elements are used for different widths, then versatility is improved, but ease of operation decreases due to multiple components to manage

Engineering Contradiction:
Improvehandling of different sheet material widthsVSAvoidsimplicity of adjusting for different widths
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The roller assembly is designed as a single movable unit that can be easily repositioned along the crimping device body. This dynamic design simplifies operation compared to managing multiple fixed rollers for different widths, as the user only needs to adjust the position of one roller assembly rather than configuring multiple separate components.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The single roller assembly serves as a universal component that can accommodate various sheet material widths through its movable design. This multi-functional approach simplifies operation by eliminating the need to manage multiple specialized rollers, reducing the complexity of adjusting the device for different widths.

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

Data Source

PatentEP4521964B1Quick adjustable roller for a crimper for sheet material
Publication Date: 2026.05.13 PHILIP MORRIS PRODUCTS SA
  • EP4521964B1 patent drawingFigure 1~2
  • EP4521964B1 patent drawingFigure 3~4
  • EP4521964B1 patent drawingFigure 5~6

AI summary

An adjustable roller (20) for a crimper for sheet material, comprising: a substantially cylindrical exterior portion (21) having a first end (22) and a second end (23) with a longitudinal axis of rotation (30) extending between the first end (22) and the second end (23); and a first bushing (26) mounted inside the first end (22) of the roller and a second bushing (126) mounted inside the second end (23) of the roller. The first bushing (26) and the second bushing (126) each have a respective cylindrical bore (28, 128) with an axis that is parallel to the longitudinal axis of rotation. At least one of the first bushing (26) and the second bushing (126) is adjustably mounted inside the respective end (22,23) of the roller such the axis of the at least one of the first bushing (26) and the second bushing (126) is displaceable relative to the longitudinal axis of rotation (30).