Multi-Station Conveyor Sorting for Industrial Laundry Throughput
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Solution Overview
Problem
Current laundry sorting methods in large laundries are inefficient due to manual sorting processes, which limit performance and require multiple steps, leading to reduced productivity and increased labor costs.
Innovation Solution
A conveyor-based system with multiple sorting stations, where laundry is pre-sorted and then sorted according to specific criteria using a combination of manual and mechanized methods, with data carriers for automated sorting and distribution conveyors to direct items to appropriate collection points, enhancing sorting efficiency and reducing unnecessary actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual sorting is used at all sorting stations, then sorting accuracy is maintained, but sorting capacity and productivity are limited
Solution Approach 1:
The sorting process is divided into multiple sorting stations (first, second, third sorting stations) arranged along the conveyor, each handling specific sorting tasks. This segmentation allows simultaneous sorting operations at different stations, increasing overall productivity while maintaining quality control at each stage.
Solution Approach 2:
A conveyor system acts as an intermediary to transport laundry between sorting stations and collection points. This mechanical intermediary enables continuous flow and coordination between manual sorting operations at different stations, allowing parallel processing without interfering with each other's work.
2Productivity
If multiple sorting stations are arranged along the conveyor, then sorting performance increases, but device complexity increases
Solution Approach 1:
Each sorting station is equipped with collection points that can handle multiple sorting criteria (size, fabric type, color). This multi-functionality allows a single station to perform various sorting tasks, reducing the need for specialized stations for each criterion and simplifying the overall system architecture.
Solution Approach 2:
Sorting stations and collection points are arranged in a linear sequence along the conveyor's length, utilizing the spatial dimension of the conveyor system. This linear arrangement allows multiple sorting operations to occur simultaneously at different positions along the conveyor, increasing productivity without requiring vertical stacking or complex three-dimensional configurations.
3Measurement precision
If laundry items are sorted according to multiple criteria simultaneously, then sorting accuracy improves, but sorting time increases
Solution Approach 1:
The first sorting station performs preliminary sorting based on size (large vs. small items) before subsequent stations handle more detailed sorting by fabric type and color. This preliminary classification reduces the complexity of sorting tasks at later stations, allowing multiple criteria to be evaluated without significantly increasing total sorting time.
Solution Approach 2:
The conveyor system maintains continuous movement of laundry through all sorting stations, eliminating idle time between sorting operations. Each station processes items in continuous flow, and collection points are continuously updated, ensuring that the sorting process operates without interruption and minimizes total processing time.
Data Source
AI summary
In industrial laundries, laundry, especially dirty laundry, is delivered in sacks or bundles. This accumulates laundry or laundry items of different sizes and different textures. Because of this, it is necessary before the actual cleaning that the laundry items are sorted. So far, the sorting of laundry has been carried out entirely or partially manually. This is usually done in several steps, which means a lot of manual and time effort and can also be error-prone. Especially when several people sort the laundry at a sorting stand, this leads to a lower sorting performance due to coordination problems and different working speeds of the people. This problem is solved by the invention in that the laundry is sorted in different ways at at least some sorting stations (14, 15, 16).