Segmented Guide Rail for Star Wheel Conveyor Stability
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Solution Overview
Problem
Existing star wheel conveyor systems face challenges in efficiently guiding containers through the conveyor, particularly in beverage filling systems, where precise control and stability are crucial to prevent container movement and ensure smooth operation.
Innovation Solution
A device for guiding containers through a star wheel conveyor, featuring a segmented guide bar that can be arranged on various radii without deformation, coupled with a tax segment that can be displaced in the circumferential direction to move parts radially, providing a stable and flexible guiding mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid guide bar is used to guide containers, then the guide path is stable and precise, but the device cannot be adjusted to different radii and requires high forces for positioning
Solution Approach 1:
The guide bar is divided into multiple guide segments that can be independently positioned radially. Each segment can be adjusted to different radii while maintaining the overall guide path stability, resolving the contradiction between rigidity and adaptability.
Solution Approach 2:
The guide segments are designed to be dynamically adjustable in the radial direction while maintaining positional stability during operation. This allows the system to adapt to different radii requirements while preserving guide path reliability during conveying.
2Adaptability or versatility
If a deformable guide rail is used to accommodate different radii, then the device is adaptable, but the guide rail undergoes elastic deformation requiring high forces and causing wear
Solution Approach 1:
By segmenting the guide bar into adjustable sections, the system achieves radius adaptability through discrete positional changes rather than continuous deformation, eliminating elastic deformation forces and associated wear.
Solution Approach 2:
Instead of deforming a continuous guide rail to adapt to different radii, the invention inverts the approach by using rigid segments that can be positioned at different radii, achieving adaptability without deformation and the associated high forces.
3Manufacturing precision
If clamps with active control are used to grip containers, then container positioning is precise, but the device complexity increases
Solution Approach 1:
The clamp arms are designed to pivot passively in response to container geometry and gravity, eliminating the need for active control mechanisms while maintaining precise container positioning through geometric constraints and gravitational force.
Solution Approach 2:
The passive clamp mechanism uses the container's own weight and geometry to automatically position and secure it, without requiring external control devices. The clamp arms self-adjust to grip the container securely based on its dimensions.
4Device complexity
If passive clamps are used to reduce complexity, then the device is simpler, but container positioning precision may be compromised
Solution Approach 1:
The passive clamp arms are designed with asymmetric geometry that naturally guides containers into precise positions during the pivoting motion. The asymmetric shape ensures proper orientation and positioning without active control while maintaining manufacturing precision.
Solution Approach 2:
The clamp arm surfaces are designed with specific curvatures that conform to container shapes, ensuring precise positioning through geometric constraints. The curved surfaces guide containers into correct positions passively during the gripping action.
Data Source
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AI summary
The present invention relates to a device (1) for guiding containers (101) conveyed by a star wheel (103) in a star wheel conveyor (100), preferably for guiding beverage containers (101) in a star wheel conveyor (100) in a beverage bottling plant, comprising at least two adjusting elements (16) spaced apart from each other in a circumferential direction (210) with respect to a central axis (200), each of which is displaceable in a radial direction (220) with respect to the central axis (200), and a control segment (18) displaceable in a circumferential direction (210), which is coupled to the adjusting elements (16) such that a displacement of the control segment (18) in the circumferential direction (210) causes a displacement of the adjusting elements (16) in the radial direction (220), wherein a guide strip segment (4) is arranged at each of the radially inner ends of the adjusting elements (16).wherein the guide rail segments (4) together form a segmented guide rail (6) for providing an outer guide track for the containers (101) to be conveyed.