Concave Guide Belt for Rotation-Free Container Transfer

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Solution Overview

Problem

Existing container guiding devices fail to maintain a stable, rotation-free transfer of containers, which is essential for precise positioning of features like embossing, imprints, or adhesive applications during container grouping, leading to potential damage and misalignment.

Innovation Solution

A device with a concave guide area and a revolving guide belt that applies feed forces on both sides of the container, combined with adjustable guide clamps and a flexible guide band, ensures stable lateral guidance along a curved path, preventing rotation and ensuring precise positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a railing is used for lateral guidance of containers, then the device structure is simple, but the container transfer becomes unstable and rotation cannot be prevented

Engineering Contradiction:
Improveguidance device structureVSAvoidcontainer positioning precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The guide belt is divided into multiple guide elements that can be spaced apart or have gaps between them. This segmentation allows the guide belt to be flexible and adapt to the curved transport path while maintaining lateral guidance. The individual guide elements can independently contact containers to prevent rotation without requiring a rigid, complex structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The guide belt is designed to be continuously driven and flexible, allowing it to dynamically adapt to the curved transport track and container positions. Unlike a static railing, the driven guide belt can actively maintain contact with containers throughout the arc-shaped path, providing stable lateral guidance and rotation prevention through its dynamic movement and flexibility.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If a stationary railing is used for lateral guidance, then the device structure is simple, but container surfaces may be damaged due to rubbing contact

Engineering Contradiction:
Improveguidance device structureVSAvoidcontainer surface damage
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The guide belt is continuously driven to move along with the containers through the arc-shaped transport path. This dynamic movement eliminates rubbing and scratching that would occur with stationary railings, as the guide belt surface moves synchronously with the containers, providing smooth contact without relative friction that could damage sensitive container surfaces.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The guide belt can be made from materials with different surface properties compared to traditional railings. By changing the material parameters (such as using softer, non-abrasive materials), the system provides lateral guidance while minimizing surface damage to containers, particularly important for protecting labels, printed markings, and sensitive container surfaces.

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If feed forces are applied from one side only, then the device structure is simple, but the container may twist around its vertical axis during transfer

Engineering Contradiction:
Improveforce application mechanismVSAvoidcontainer orientation stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The guide belt is positioned asymmetrically within the concave guide area, with the contact area projecting laterally to engage containers on one side while the continuously driven transport element provides opposing force from the other side. This asymmetric arrangement creates balanced feed forces that prevent rotational twisting, with each side providing complementary stabilization.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The invention merges two force application mechanisms: the continuously driven transport element that provides propulsive force, and the driven guide belt that provides lateral guidance and additional feed forces. By combining these two mechanisms working together from opposite sides, the system achieves stable, rotation-free container transfer that neither mechanism could accomplish alone.

Inventive Principle:
Principle #5Merging (Combining)

4Strength

If the guide belt contact area is made of hard material, then the structural strength is high, but the container surface may be damaged

Engineering Contradiction:
Improveguide belt strengthVSAvoidcontainer surface damage
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The guide belt is designed with different material properties in different areas: the base area can be made of stronger material for structural integrity and flexibility, while the contact area that directly touches containers is made of softer material to prevent surface damage. This local differentiation of material quality allows the same component to simultaneously provide both strength and gentle contact.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The guide belt can be constructed as a composite structure with the base area made of one material (providing strength and flexibility) and the contact area made of a different, softer material (providing gentle container contact). This composite construction allows optimization of each area for its specific function - structural support versus surface protection.

Inventive Principle:
Principle #40Composite materials

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

This solution effectively prevents container rotation during transfer, ensuring accurate positioning of adhesive dots and protecting sensitive surfaces by applying feed forces on both sides, thereby enhancing the stability and precision of container grouping processes.

Implementation Method 1

The guide belt is continuously driven and designed to apply propulsive forces to the containers in the transport direction

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3353099B1Device and method for laterally guiding containers
Publication Date: 2020.02.19 KHS GMBH
  • EP3353099B1 patent drawingFigure 1~2
  • EP3353099B1 patent drawingFigure 3~4
  • EP3353099B1 patent drawingFigure 5~6

AI summary

The invention relates to a device for guiding containers (2) along an arcuate container transporting path. The device has a concavely shaped guide region (20a, 20b), wherein an endlessly revolving guide belt (21) is provided, which forms a resting region for the containers (2) in the concavely shaped guide region (20a, 20b) in order to guide said containers (2) laterally along the arcuate container transporting path, and wherein the guide belt (21) is configured to apply feed forces to the containers (2), said feed forces acting in the transporting direction (TR).