3D Printing Production Line Layout for Idle Time Reduction
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Solution Overview
Problem
The inefficiency of 3D printing processes due to unreasonable arrangement of 3D printing apparatuses in production lines, which restricts production efficiency.
Innovation Solution
A 3D printing apparatus and production line design featuring a frame assembly with integrated powder spreading, inkjet, and lifting mechanisms, along with a cyclical printing method that optimizes the arrangement of multiple apparatuses and baking devices in a closed-loop system to reduce idle time and enhance utilization efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If 3D printing apparatuses are arranged in a traditional linear layout, then the production line occupies more space and has simpler material flow, but the production efficiency is restricted due to longer transport paths and increased idle time
Solution Approach 1:
The patent transforms the traditional linear arrangement of 3D printing apparatuses into a two-dimensional grid layout, where multiple printing machines are positioned in rows and columns. This spatial reconfiguration reduces material transport distances and enables parallel material flow paths, thereby improving production efficiency without significantly increasing system complexity
Solution Approach 2:
The patent introduces dynamically adjustable conveyors and transfer mechanisms that can adapt material flow paths in real-time based on production demands and machine status. This dynamic flexibility allows the system to optimize material routing and reduce idle time, resolving the contradiction between improved productivity and increased operational complexity
2Loss of time
If multiple 3D printing apparatuses are arranged in a compact grid layout, then material transport distance is reduced and production efficiency is improved, but the arrangement complexity and space utilization challenges increase
Solution Approach 1:
The patent designs multi-functional transfer stations that serve multiple purposes: material transfer between conveyors, temporary storage of printed models, and quality inspection points. These universal nodes reduce the need for dedicated space for each function, thereby minimizing overall space requirements while reducing idle time through integrated operations
Solution Approach 2:
The patent implements nested conveyor systems where conveyors are positioned at different vertical levels and interconnected through transfer stations. This three-dimensional nesting approach maximizes space utilization by using vertical space efficiently, allowing compact grid arrangement of printing apparatuses while maintaining short material transport paths and reducing idle time
3Productivity
If a cyclical printing method is implemented with multiple working boxes, then production efficiency is improved through continuous operation, but the system complexity and coordination requirements increase
Solution Approach 1:
The patent implements a cyclical printing method where multiple working boxes are prepared in advance with different model data loaded. While one printing apparatus is completing a print job, the next working box is already positioned and ready, eliminating idle time between jobs. This preliminary preparation approach enables continuous production while using standardized working boxes that simplify system coordination
Solution Approach 2:
The patent ensures continuous useful action by implementing overlapping operation cycles across multiple printing apparatuses. While one machine is printing, another is preparing the next working box, and a third is completing post-processing. This continuous workflow maximizes productivity while the modular working box design simplifies the coordination complexity through standardized interfaces and procedures
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
The design and method improve production efficiency by ensuring timely conveyance and utilization of working boxes and printed models, reducing idle time, and optimizing the use of apparatuses, thereby achieving high-efficiency 3D printing.
Implementation Method 1
an inkjet unit (130), an inkjet movement system (80), wherein the inkjet unit (130) is mainly involved in applying the materials (in solid and/or liquid and/or gaseous state) in the container carried thereon onto powder surfaces of patterned slice regions
Implementation Method 2
the inner lifting mechanism is mainly involved in a lifting and lowering movement for constructing a material surface in the printing process of the apparatus
Implementation Method 3
the outer lifting mechanism is mainly involved in the lifting and lowering movement during the subsequent processing on the models after completion of the printing of the apparatus
Implementation Method 4
the transfer unit comprises an outer roller table and an inner roller table that are configured to convey the working box and each comprise a driving mechanism
Data Source
Figure 1
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Figure 3~4
AI summary
The embodiments of the present disclosure provide a 3D printing apparatus, a production line using the apparatus, and a cyclical printing method thereof, which relate to the technical field of material additive manufacturing. The 3D printing apparatus comprises a frame assembly, and a powder spreading unit, a powder spreading movement system, a powder supply device, an inkjet unit, an inkjet movement system, a working box, a transfer unit, an inner lifting mechanism, an outer lifting mechanism, an accessory unit and an auxiliary unit that are mounted on the frame assembly. In the embodiments of the present disclosure, a plurality of 3D printing apparatuses are arranged in a centralized manner to form a production line system with high printing efficiency, wherein the plurality of 3D printing apparatuses and baking devices are planned and arranged in a centralized manner, and form a closed-loop production system by means of a plurality of conveying and transferring routes, which reduces the idle time of some of the apparatuses during production and improves the use efficiency of the apparatuses, thereby realizing 3D printing of high efficiency.