Advanced Spiral Stirring Mechanism Solves Ice Machine Distribution Problems

Commercial ice machine manufacturers have long struggled with a frustrating problem: uneven material distribution within storage containers. The new spiral stirring mechanism with dual-edge design provides a comprehensive solution that ensures complete material circulation while preventing blockages that reduce operational efficiency and product availability.

The Problem

Existing spiral stirring paddles used in ice storage containers suffer from limited stirring range and blade geometry constraints. These limitations create localized agglomeration where material clumps together in certain regions of the container, failing to reach the discharge outlet. The insufficient stirring action leaves portions of the frozen mixture unstirred, negatively affecting the eating experience and machine reliability.

Remaining material accumulates at discharge points and solidifies at storage temperatures, becoming impossible to clean efficiently. This hardened residue blocks subsequent material output, dramatically reducing discharge efficiency. Over time, accumulated frozen material creates mechanical blockages that force equipment shutdown during critical service periods, directly impacting revenue during peak customer demand.

What This Invention Does

This patent introduces a revolutionary spiral stirring paddle with a pair of stirring edges that wind spirally around a central shaft while alternately surrounding it throughout the entire length of the container. This dual-edge geometry achieves complete coverage of the storage space, ensuring every portion of frozen material receives continuous stirring action during rotation.

The tail end of each stirring edge positions closely to the ice outlet, enabling effective material conveyance toward discharge points. The outer contour of the stirring edges maintains proximity to the inner wall of the storage container, minimizing dead zones where material could stagnate. A backflow side plate with an L-shaped groove directs material flow intelligently – pushing material toward the outlet in one rotation direction and redirecting backflow material away from the outlet in the opposite direction, preventing blockages.

Key Features

• Dual-Edge Spiral Design. Two stirring edges wound spirally around the central shaft provide comprehensive coverage throughout the container length.
• Efficient Material Conveyance. Blade positioning close to the ice outlet ensures material reaches discharge points reliably.
• Backflow Groove System. L-shaped backflow grooves prevent material accumulation at outlet points while maintaining proper flow direction.
• Complete Circulation Coverage. The spiral arrangement covers the entire container interior, eliminating stagnation zones where material previously accumulated.
• Bidirectional Operation. Rotation in either direction successfully conveys material toward discharge or directs it away from outlets as needed.

Who Is Behind It?

Inventor Zhou Quan developed this solution for Guangzhou Xin’an Trading Co., Ltd., a manufacturer specializing in cold beverage equipment. The patent reflects four priority filings in China from August and September 2024, demonstrating intensive development efforts before international filing. The Australian filing through GLMR legal services indicates strategic expansion toward English-speaking markets and potential licensing opportunities.

Why It Matters

For venue operators and ice machine manufacturers, this innovation directly improves revenue-generating capability and customer satisfaction. Complete discharge prevents revenue loss from unavailable products during peak demand periods. The improved material circulation quality ensures superior taste and texture consistency, supporting premium product positioning and repeat customer visits.

Manufacturers benefit from equipment that requires less maintenance, operates with fewer service calls, and positions as a superior alternative to competitor offerings. The simplified design with fewer moving components than some complex discharge mechanisms reduces manufacturing costs while improving reliability. The intelligent backflow system eliminates the engineering need for complex mechanical scrapers or bypass valves.

Related Concepts

Commercial ice cream and frozen beverage machines rely on continuous agitation to maintain a consistent, pourable texture. Agglomeration – the clumping of frozen particles into hard masses – is a persistent engineering challenge that reduces product quality and blocks discharge mechanisms, forcing costly equipment downtime.

The Archimedes screw principle, which uses a helical blade to move material along a shaft, underpins many modern auger and stirring designs in food processing equipment. This patent extends that principle with dual-edge geometry and a backflow groove system specifically engineered to prevent outlet blockage in frozen-product dispensers.

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AU 2024431830 was published in the Australian Official Journal of Patents on 19 March 2026 and is open for public inspection. Patent applications represent inventions that are sought to be protected and do not necessarily reflect commercially available products.