A Method of Sequential Parts Distribution Based on Dynamic Adjustment Forecasting Work-in-Progress Queue

A dynamic adjustment and queuing technology, applied in the field of manufacturing and assembly, can solve problems such as changing plans

Active Publication Date: 2021-11-12
CHINA NORTH IND NEW TECH PROMOTION INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of multi-variety and small-batch assembly production, changeable plans, production adjustments, or sequential parts distribution under abnormally frequent production conditions, and provide a method for sequential parts distribution based on dynamically adjusted predicted WIP queues

Method used

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  • A Method of Sequential Parts Distribution Based on Dynamic Adjustment Forecasting Work-in-Progress Queue
  • A Method of Sequential Parts Distribution Based on Dynamic Adjustment Forecasting Work-in-Progress Queue
  • A Method of Sequential Parts Distribution Based on Dynamic Adjustment Forecasting Work-in-Progress Queue

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Embodiment Construction

[0044] The method of sequential parts distribution based on the forecasted WIP queue based on dynamic adjustment, the implementation process is as follows:

[0045] 1. Factory model and basic data

[0046] 1) Define the assembly line and station

[0047] Line1, station: S1, S2, S3, S4, S5;

[0048] On-line station S1,

[0049] The sequence of stations: S1->S2->S3->S4->S5.

[0050] 2) Maintain the product

[0051] Define products A, B, C, D

[0052] 3) Maintain BOM

[0053] Material distribution method: JIT (Just-In-Time): sets of kits, JIS (Just-In-Sequence): sequential delivery

[0054]

[0055]

[0056]

[0057]

[0058] 4) Maintain production beat

[0059] product the beat A 10 minutes B 20 minutes C 25 minutes D 15 minutes

[0060] Due to the mixed-line production, at any moment, there may be any combination of products A, B, C, and D on the assembly line. In order to simplify the calculation, the empirical beat ...

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Abstract

The invention discloses a method for delivering sequential parts based on a dynamically adjusted and predicted WIP queue in the production process of multi-variety and small-batch flexible assembly. The steps are: 1. According to the production plan, the time when the WIP actually passes through the previous station, and the abnormality in production, calculate the estimated passing time of the WIP at the subsequent material delivery point in the workshop; 2. According to the material delivery cycle, Lock the corresponding WIP; 3. Calculate the material distribution plan according to the locked WIP queue; 4. Distribute the material according to the material plan. Its purpose is to solve the confusion of material distribution, and minimize the impact of plan changes and production abnormalities on material distribution, especially the impact on sequential distribution of materials, without affecting production.

Description

technical field [0001] The invention relates to the lean material distribution in the flexible production process of multi-variety and small batches in the manufacturing and assembly industry. Background technique [0002] For assembly production, there are many ways for materials to be distributed from warehouse to line edge, and no matter which way, material distribution depends on the accuracy of production plan. For the production of multiple varieties and small batches, the common problem is that either the material delivery is not timely, causing the assembly line to stop; or, the material delivered to the line does not match the actual work in progress, resulting in material confusion. In the small-batch and multi-variety mixed-line production mode, the material distribution of sequential parts is even more challenging: if the distribution sequence of sequential parts does not correspond to the sequence of WIP, there may be missing or wrong loading of materials. caus...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G06Q10/08G06Q10/04G06Q50/04
CPCY02P90/30
Inventor应小昆曲强雷旭王广福刘金虹马冬梅林云郭昌伟别小野高红云李济龙祁玉亭刘芳李超
OwnerCHINA NORTH IND NEW TECH PROMOTION INST