优化生产中的物流活动.ppt

Material Movement in a Lean Manufacturing Operation  优化生产中的物流活动
Total Systems Development
全体系生产提高
JIT生产(准时,准量生产):
What is meant by the term, “Just-In-Time”?
JIT生产意味着什么?
Does it mean JIT Supply?
准时,准量供应?
Does it mean JIT Production?
准时,准量生产?
So, what is Just-In-Time?那么,什么是准时准量生产?
The concept of producing the necessary units in the necessary quantities at the necessary time is described by the short-phrase “Just-In-Time”.
JIT生产是:在必需时间内生产必需数量的必需部品的概念.
For example….
In building shoes: The necessary subassemblies of the proceeding process (uppers and bottoms) should arrive at the assembly line at the time needed in the amounts needed.
举例说明:
在生产成品鞋的时候:制鞋所必需的部件(鞋帮和鞋底)要准时,准量,准型号地到达制造车间.
If we achieve JIT: 如果我们做到准时,准量生产:
Unnecessary inventories will be eliminated.
不必要的库存就会消除
Stores and warehouses will not be needed.
储存区和仓库也可以取消
Material carrying costs will be diminished.
资材搬运成本降低
However….
To rely solely on a central planning approach that instructs the production schedules to all processes simultaneously is not likely to result in a JIT process for all operations.
但是:单纯地依赖计划生产的方法,使所有工序同步生产,并不能完全实现所有环节的准时,准量生产.
Transfer
Washer
Assembly
Machining加工
Welding焊接
Assembly组装
Shipping装船
Weekly Schedule每周生产计划
Typically, one control operation receives the customers’ orders and disseminates schedules.通常,生产控制部门接受客户定单,然后制订并传达计划.
Production Control
生产控制
Transfer
Washer
Assembly
Machining加工
Welding焊接
Assembly组装
Shipping装船
Weekly Schedule每周生产计划
Production Control
生产控制
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The es when a change is made either because the order changes or equipment breaks down.但是当定单有变化或设备出现问题的时候,就会发生一些问题:
库存
库存
库存
库存
The result is excess inventory…结果是导致过多的库存…
…within the plant as Work-In-Process
…在本车间工序内积压过多的库存
…suppliers sending in parts that are not needed
…上一道工序发来的并不需要的部件
Additionally另外,
We need extra floor space to store the material.
我们需要额外的空间来堆放材料
Need expeditors to satisfy the changes in schedule.
需要人力和时间投入来改变生产计划
Run overtime to mak