Research On Production Planning Of Multi-variety And Small-batch Bearing Products

Along with the further development of global integration,the manufacturing industry is encountering over-productivity,and facing diversified and personalized consumer demands.The mode of production are changing from mass production to multi-varieties and small-batch.This trend of change is like a double-edged sword hanging on the head of the enterprise.On the one hand,it brings great challenges to the flexible controllability and management ability of the enterprise’s production plan,and requires the enterprise to quickly respond to the changes of customer demand and market.On the other hand,it is also an opportunity for enterprises to seize the opportunities to achieve a leap forward.Due to multi-varieties and small-batch mode,which lead to the disruptios of logistics supply,high frequent of purchases and type changing.How to optimize the production planning and control system so as to improve the flexibility of production planning and timely response to the changing markets demand is a key issue for the survival and development of manufacturing enterprises.This paper takes a multi-variety small batch enterprise C company as the research object to analyze and improve the problems occurred in the production process,as well as the production plan and control system.First of all,this paper investigated the production and operation status of C company and found that it was faced with two apparent problems :(1)Low order delivery rate;(2)High inventory;After in-depth analysis of these existing appearance problems,it is concluded that C company has problems in production planning and control,and meanwhile,it is concluded that the production planning and control of single-layer MRPII currently used by C Company cannot meet the requirements of C company for multi-variety and small-batch production mode.Secondly,through the comparison of advantages and disadvantages of typical production planning theory,the production planning and control process based on MRPII and TOC collaboration(establishment of basic data of collaborative planning,upper planning and workshop planning,planning control method)and adjustment of production line layout under the collaborative mode are established.Then,take a specific case to show how to use the new operation method of production planning and control.Finally a series of measures such as training,planning departments responsibility adjustment and examine,optimize production capacity requirements management,strengthen the communication between the department makes the improvement strategy smooth implementation,this paper and achieved significant effect,C company’s order delivery rate reach to 98%,the production leadtime shortened by25.4%,and the dull inventory has a significantly lower.Through the research of this paper,it shows that the reasonable improvement of production planning and control process can effectively improve the operation performance of manufacturing enterprises under the mode of multi-variety small batch production mode and reduce the management cost.Although the research object of this paper is the traditional manufacturing enterprises oriented to order production,its research methods and results have general practical significance for other multi-variety small batch production enterprises.