Mattress Manufacturing Scheduling via Batch Optimization

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Solution Overview

Problem

The complexity of mattress configurations in automated manufacturing leads to inefficiencies in throughput and increased downtime due to the need for frequent changes in machinery and material usage, resulting in high material waste and manual labor requirements.

Innovation Solution

Implementing a scheduling method that uses short period repeat interval analysis and optimization techniques, such as computer simulations and mixed integer programming, to create optimized production batches that minimize changeovers and maximize throughput while reducing waste, by grouping orders by due dates and adjusting batches to meet performance thresholds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If automated manufacturing processes are implemented to reduce manual labor, then labor requirements are reduced, but production speed decreases and throughput is reduced

Engineering Contradiction:
Improvemanual labor requirementsVSAvoidproduction throughput
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system dynamically adjusts production batch sizes and compositions based on real-time machine availability, material inventory levels, and customer order priorities. The scheduling system continuously optimizes batch configurations to maximize throughput while maintaining automated operation, allowing the production system to adapt its pace and composition rather than operating at fixed speeds

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The scheduling system ensures continuous production by optimizing batch compositions to minimize machine changeovers and material transitions. By carefully sequencing orders within batches and across multiple batches, the system maintains continuous operation of automated machines without idle time, thereby maximizing throughput while preserving the labor-reducing benefits of automation

Inventive Principle:
Principle #20Continuity of useful action

2Adaptability or versatility

If frequent machine changeovers are performed to accommodate varying mattress configurations, then product variety is achieved, but production downtime increases

Engineering Contradiction:
Improvemattress configuration varietyVSAvoidproduction downtime
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system performs preliminary grouping of customer orders into optimized production batches before manufacturing begins. By pre-analyzing order requirements and sequencing them to minimize changeovers, the system prepares the production schedule in advance, reducing the frequency and duration of machine changeovers while still accommodating various mattress configurations

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The scheduling system merges multiple customer orders into consolidated production batches that share common material requirements and machine settings. By combining orders that can be produced together without changeovers, the system reduces the total number of changeovers needed while maintaining the ability to produce diverse mattress configurations across different batches

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If frequent machine changeovers are performed to accommodate varying mattress configurations, then product variety is achieved, but material waste increases

Engineering Contradiction:
Improvemattress configuration varietyVSAvoidmaterial waste
Core Design Contradiction:
Adaptability or versatilityVSLoss of substance

Solution Approach 1:

The system merges orders into batches that utilize the same material rolls and components, maximizing material utilization before changeovers are required. By consolidating orders that can share material resources, the system minimizes the amount of material that must be discarded during changeover transitions while still producing varied mattress configurations

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The scheduling system identifies and recovers usable material segments during changeover transitions, minimizing waste. By carefully planning changeover timing and material usage, the system maximizes the utilization of material rolls before changeovers and minimizes discarded material, thereby reducing overall material waste while maintaining product variety

Inventive Principle:
Principle #34Discarding and recovering

4Quantity of substance

If on-demand production is used to avoid inventory costs, then inventory levels are reduced, but production complexity increases

Engineering Contradiction:
Improveinventory levelsVSAvoidproduction scheduling complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The system segments the production process into discrete, optimized batches that can be independently scheduled and managed. By dividing customer orders into manageable batch units with specific material and machine requirements, the system simplifies the scheduling complexity while maintaining on-demand production and low inventory levels

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The scheduling system incorporates feedback loops that continuously monitor production progress, material inventory levels, and customer order status. This feedback mechanism enables dynamic adjustment of batch compositions and sequencing, simplifying the overall scheduling complexity by providing real-time visibility and automated optimization based on current system state

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS10365638B2Scheduling process for automated mattress manufacturing
Publication Date: 2019.07.30 DREAMWELL LTD
  • US10365638B2 patent drawing
  • US10365638B2 patent drawing
  • US10365638B2 patent drawing

AI summary

Disclosed herein methods for scheduling the automated manufacturing of mattresses. Aspects include receiving a plurality of customer orders for mattresses, wherein each of the plurality of customer orders includes a due date and organizing the plurality of customer orders into production batches based on the due dates. Aspects also include analyzing a first production batch of the daily production schedule and responsively creating an optimized hour production batch and based on a determination that the optimized first production batch exceeds a performance threshold 1, dispatching the first hourly production batch to an automated manufacturing system for production. Based on a determination that the optimized first hour production batch does not exceed the performance threshold, aspects further include analyzing a second production batch and modifying the optimized first production batch and the second production batch to create an optimized second production batch.