Hollow Pin Roller for Container Compacting
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Solution Overview
Problem
Existing compacting devices for empty containers, such as beverage bottles or cans, often require complex designs and multiple components, making them inefficient and costly, particularly in achieving effective compression and perforation without prior perforation of the containers.
Innovation Solution
A compacting device featuring a rotatable roller with a base body and projecting hollow pin elements, where the pin elements are inserted into recesses in the roller base body, allowing for simultaneous compression and perforation, and utilizing spiral pins for radial elasticity to maintain secure attachment and facilitate easy replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional compacting devices use solid pins fixed with pressfit and metal adhesive, then the pin elements are securely attached, but the device complexity increases and manufacturing cost rises
Solution Approach 1:
The pin element is divided into two functional parts: a hollow cylindrical body providing structural support, and a separate spiral pin insertion providing anchoring function. This segmentation allows each part to be optimized independently and simplifies the overall construction by eliminating the need for pressfit and adhesive processes.
Solution Approach 2:
The hollow pin element serves multiple functions: it provides structural support, enables easy insertion and removal of the spiral pin, and allows for replacement of worn pins without replacing the entire roller base body. This multi-functionality reduces device complexity while maintaining reliability.
2Stability of the object's composition
If multiple pin elements are fixed permanently to the roller base body, then the structure is stable, but replacement of worn or damaged pins requires replacement of the entire roller base body
Solution Approach 1:
The pin element is designed as a separate, removable component from the roller base body. The hollow pin can be inserted into and removed from the roller base body independently, allowing replacement of only the worn pin element while keeping the stable roller base body structure intact.
Solution Approach 2:
When pin elements wear or become damaged, only the affected pin elements are removed and replaced, while the roller base body is retained and reused. This selective replacement approach maintains structural stability while significantly improving ease of repair.
3Force
If the roller base body is designed to withstand high compression forces, then the device can effectively compact containers, but the device complexity and manufacturing cost increase
Solution Approach 1:
The force-bearing function is separated from the pin attachment function. The roller base body is designed to withstand compression forces, while the pin elements provide the anchoring mechanism. This segmentation allows the roller base body to be optimized for force resistance without adding unnecessary complexity for pin attachment.
Solution Approach 2:
The pin elements are designed as replaceable, lower-cost components that can be easily replaced when worn, while the main roller base body structure remains intact. This approach reduces overall device complexity by allowing replacement of simple components rather than designing the entire system for maximum durability.
4Ease of repair
If pin elements are inserted into recesses in the roller base body, then worn pin elements can be replaced individually, but the manufacturing precision requirements increase
Solution Approach 1:
The hollow pin element is designed with dimensional tolerances that accommodate variations in recess positioning. The spiral pin insertion mechanism provides self-centering and compensation for minor misalignments, reducing the impact of manufacturing precision variations while enabling easy individual replacement.
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 design enables efficient and cost-effective compacting of containers by allowing the use of lighter materials for the roller base body, such as plastic, and ensures secure attachment and easy maintenance of the pin elements, enhancing the device's operational reliability and durability.
Implementation Method 1
Because of their radial elastic properties, it is ensured that the spiral pins do not loosen from the roller base body when subjected to loads such as occur during the operation of the compacting device
Data Source
AI summary
The invention relates to a compacting device (1) for compacting empty containers, in particular beverage bottles or cans of plastic or metal, comprising at least one rotatable roller (1a, 1b), which is designed for compressing and perforating empty containers, wherein the roller (1a, 1b) has a roller base body (2a, 2b) and at least one pin element (3) protruding from the roller base body (2a, 2b), wherein the pin element (3) is formed as a hollow pin, at least the end face of the hollow pin that is facing away from the roller base body (2a, 2b) is open.