Reciprocating 3D Printing Unit with Dynamic Table Separation
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Solution Overview
Problem
Existing three-dimensional shaped object manufacturing devices face challenges in size enlargement and structural damage during the manufacturing process due to independent powder supply and nozzle configurations, which hinder high-speed production and increase the risk of contact between structural members and the object being manufactured.
Innovation Solution
A three-dimensional shaped object manufacturing device with a unit that includes both powder supply portions and layer forming portions, along with a head for discharging a binder, is designed to reciprocate and control the shaping table's movement, ensuring that the supply and forming components are symmetrical and integrated, allowing for high-speed manufacturing while preventing contact between the forming components and the object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the powder supply portion and nozzle head are independently configured, then the device structure is simple, but the device size enlarges and manufacturing speed decreases
Solution Approach 1:
The patent combines the powder supply portion and nozzle head into a single integrated unit that reciprocates together. This merging eliminates the need for separate independent configurations, reducing overall device size while maintaining functional simplicity. The integrated unit allows for coordinated operation of powder supply and liquid discharge, improving manufacturing speed without significantly increasing structural complexity.
2Volume of moving object
If the structural member (blade) is positioned close to the shaping region, then the device size is reduced, but the risk of contact and damage to the three-dimensional shaped object increases
Solution Approach 1:
The patent implements dynamic control of the shaping table movement, specifically moving the shaping table in a direction separating from the reciprocating unit after liquid discharge ends and before the layer forming portion faces the shaping region again. This dynamic timing adjustment creates a safety margin that prevents contact between the blade/layer forming portion and the three-dimensional shaped object, eliminating the harmful contact risk while maintaining a compact device configuration.
3Duration of action of moving object
If the layer forming portion faces the shaping region continuously, then the manufacturing process is continuous, but the risk of contact between the layer forming portion and the three-dimensional shaped object increases
Solution Approach 1:
The patent employs periodic action by controlling the shaping table to move away from the reciprocating unit at specific intervals - after liquid discharge ends and before the layer forming portion faces the shaping region again. This periodic separation creates a safety cycle that prevents continuous contact while maintaining overall manufacturing continuity. The rhythmic motion pattern ensures reliability by systematically eliminating contact risk at critical moments in the manufacturing cycle.
Data Source
AI summary
In a three-dimensional shaped object manufacturing device, when a unit is moved in a forward direction, powder is supplied from a first supply portion, a powder layer is formed by a first layer forming portion, a liquid is discharged to a shaping region from a head, and a shaping table is moved in a direction separating from the unit after discharging the liquid is ended and before a second layer forming portion faces the shaping region, and when the unit is moved in a backward direction, the powder is supplied from a second supply portion, the powder layer is formed by the second layer forming portion, the liquid is discharged to the shaping region from the head, and the shaping table is moved in the direction separating from the unit after discharging the liquid to the shaping region is ended and before the first layer forming portion faces the shaping region.