3D Printing Scraper Assembly with Dynamic Rail System
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Solution Overview
Problem
The existing scraping methods in three-dimensional printing devices often cause high-viscosity or low-fluidity printing slurries, such as those containing ceramic powder, to be squeezed out of the storage tank when pushed towards the side walls, leading to inefficiencies and material loss.
Innovation Solution
A scraper component with a pulley and sliding rail system that allows the scraper to rise and drop as it moves along the side of the storage tank, preventing material from being squeezed out, and utilizing a smooth bottom surface and rigid materials to facilitate the scraping of high-viscosity slurries, along with a driving mechanism using conveyor belts for strong pushing force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the scraper pushes the high-viscosity slurry towards the side wall of the storage tank, then the scraping efficiency is improved, but the slurry is squeezed out of the storage tank
Solution Approach 1:
The scraper is designed to dynamically change its vertical position during operation. When approaching the storage tank side wall, the scraper automatically rises to prevent contact with the slurry surface, avoiding material squeeze-out. This dynamic adjustment allows the scraper to maintain high scraping efficiency while preventing material loss.
Solution Approach 2:
The system changes the operational parameters of the scraper by adjusting its height position based on its horizontal position relative to the storage tank. The scraper rises when near the side wall and lowers when in the central area, optimizing both scraping efficiency and preventing material overflow.
2Ease of operation
If the scraper uses rigid materials and smooth bottom surface, then the scraping of high-viscosity slurry is facilitated, but the friction with the slurry increases
Solution Approach 1:
The scraper employs local quality differentiation by using rigid materials for the main body structure to provide strength and smooth bottom surface in the contact area to reduce friction. This localized optimization allows the scraper to effectively handle high-viscosity slurries while minimizing resistance during movement.
Data Source
AI summary
The present disclosure relates to a scraper component of a three-dimensional printing device, which includes a scraper, a fixing frame, a pulley and a sliding rail, the scraper is installed on the fixing frame, and the pulley is set on at least one end of the fixing frame; the sliding rail has a horizontal first rail and a tilted and movable second rail, and a first end of the second rail is connected to the first rail and a second end is located on the first rail; when the pulley slides from a middle to an end of the first rail, the pulley enters the second rail from the first end and leaves the second rail from the second end then comes back to the first rail; when the pulley slides from an end to a middle of the first rail, the pulley passes through the second rail from below. The scraper of the present disclosure can push the printing slurry to the side plate of the storage tank without squeezing the slurry out of the storage tank, and can better push the printing slurry with high viscosity or low fluidity.