Carburizing Turntable System for Simultaneous Transfer
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Solution Overview
Problem
Conventional carburizing and quenching facilities face challenges in shortening treatment time due to inefficient transfer processes between treatment chambers, leading to prolonged treatment times and temperature fluctuations, which affect carburizing efficiency and require longer treatment durations.
Innovation Solution
A carburizing and quenching facility with a turntable system that allows simultaneous transfer of objects into and out of treatment chambers, reducing the frequency of transfer port door openings and minimizing temperature drops, featuring a turntable with dual support parts and a lifting and lowering mechanism to manage object transfers efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the transfer port door is opened frequently to transfer objects in and out of the carburizing chamber, then the transfer efficiency is improved, but the chamber temperature decreases and treatment time increases
Solution Approach 1:
The transfer process is divided into two independent simultaneous operations: transferring an object out of the chamber and transferring the next object into the chamber. The turntable system allows these operations to occur in parallel, reducing the frequency of door openings while maintaining transfer efficiency.
Solution Approach 2:
The next object to be transferred is prepared in advance on the turntable outside the chamber. This preliminary positioning allows the transfer port door to be opened only when both transfer operations are ready to occur simultaneously, minimizing temperature loss.
2Temperature
If the carburizing treatment time is extended to compensate for temperature drops, then the chamber temperature stability is improved, but the overall treatment time increases
Solution Approach 1:
The turntable system enables continuous operation by ensuring that an object is always ready for transfer into the chamber as soon as the previous object is removed. This continuous workflow eliminates idle time and reduces the need for extended treatment periods to compensate for temperature fluctuations.
3Device complexity
If multiple transfer operations are performed sequentially, then the transfer process is simplified, but the total treatment time increases
Solution Approach 1:
Two separate transfer operations (object removal and object insertion) are merged into a single coordinated action through the turntable system. The turntable rotates to position both objects simultaneously, allowing the transfer port door to be opened once for both operations, thereby reducing total treatment time while maintaining manageable system complexity.
Data Source
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AI summary
To shorten the time taken for a carburizing and quenching treatment of an object to be treated, a carburizing and quenching facility 1 is provided that includes: a treatment chamber where at least one treatment related to a carburizing and quenching treatment is performed on an object to be treated W; a transfer apparatus to transfer an object to be treated W; a mounting table 30 that is provided in the treatment chamber and on which an object to be treated W transferred into the treatment chamber is mounted; and a lifting and lowering device that lifts and lowers the mounting table 30 and in which a transfer arm 40 to transfer an object to be treated W into the treatment chamber and outside the treatment chamber is provided in the transfer apparatus, the carburizing and quenching facility 1 includes: a turntable 60 that is disposed in the treatment chamber and performs deliveries of an object to be treated W to and from the mounting table 30 and the transfer arm 40; and a turntable drive device that rotates the turntable 60, in which the turntable 60 includes: a first support part 63 that supports an object to be treated W that has already undergone a treatment; and a second support part 64 that supports an object to be treated to undergo a treatment next, and in plan view, the turntable 60 is provided in a positional relationship such that the first support part 63, a support post 62 of the turntable 60, and the second support part 64 are disposed in a linear arrangement so as to sandwich a rotation axis R of the turntable 60 by the first support part 63 and the second support part 64.