Movable Blade Dough Driver Prevents Attachment
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Solution Overview
Problem
Conventional dough preparation machines face inefficiencies due to dough attachment around the driver mechanism, leading to ineffective rotation and prolonged preparation times, as well as labor-intensive cleaning and dough waste.
Innovation Solution
The implementation of movable blades on the auxiliary dough drivers, which extend and retract to prevent dough attachment, ensuring continuous and effective kneading while optimizing space utilization and facilitating easier cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a helical blade is used on the screw to push and poke dough, then the dough can be effectively driven forward, but the spacing between adjacent turns becomes filled with dough after long-term operation, causing the screw to become surrounded by dough and lose its pushing function
Solution Approach 1:
The patent applies the dynamics principle by making the helical blade movable rather than fixed. The blade can extend outward to push dough effectively during operation, then retract inward to prevent dough accumulation. This dynamic adjustment allows the screw to maintain its dough-driving function without becoming surrounded by dough, thus resolving the contradiction between initial driving efficiency and long-term operational continuity.
2Productivity
If the helical blade spacing is filled with dough to maintain continuous contact, then dough can be continuously pushed, but cleaning becomes time-consuming and labor-intensive
Solution Approach 1:
The movable blade mechanism allows the helical blade to retract after completing its pushing function. This retraction creates clearance that prevents dough from completely filling the spacing between turns, making subsequent cleaning operations significantly easier and less labor-intensive while still maintaining continuous dough pushing capability during operation.
3Duration of action of stationary object
If the screw rotates continuously to drive dough, then dough preparation can proceed without interruption, but the fixed helical blade structure becomes encased in dough and ineffective
Solution Approach 1:
The patent implements a movable blade that can dynamically adjust its position during continuous screw rotation. The blade extends to maintain effective dough contact during each rotation cycle, then retracts to prevent encasement. This dynamic adjustment allows the screw to continue rotating indefinitely without the blade becoming permanently encased in dough, thus maintaining both continuous operation and functional reliability.
Data Source
AI summary
A dough preparation machine includes a power unit, which drives, through rotational speed mechanism, a helical screw shaft that extends into a dough chamber so that the dough is compressed and pushed through rotation of the helical screw shaft to be discharged out of a jet nozzle mounted to the dough chamber. The dough chamber is provided, at a location above the helical screw shaft, with an auxiliary dough driver, which includes two movable blades that are opposite to each other and are selectively extendable outward and retractable inward. When one of the movable blades passes through a circular sidewall of dough chamber, it is pressed by the sidewall to get retracted inwardly and at the same time causing another one of the movable blades to extend outward to knead and poke dough. This process is cyclically repeated to efficiently knead the dough and prevent attachment of the dough.