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If the mould time is long, can't you for mass production
If you want to reduce inventory, and in a timely manner to meet customer demand at the same time, the key lies in whether it can shorten the time of the mould of production.In general, in downstream assembly line is easy to shorten the time of the mould work faster.Upstream of the mass production process, often need to frontline staff hard work, and the full support of technical personnel and equipment manufacturers.
We work to make all employees understand the value stream, shorten the time of the mould is essential for the implementation of balanced production.Balanced production can shorten the production of the entire cycle (also known as the front stage), to reduce the inventory.If you want to be with a simple command, a paper request don't staff to shorten the time of the mould doesn't work.
The mould changeover
Refers to the changing of the mold on one or a set of equipment replacement process of mould and jig, in order to switch the production of different types of products.
Time of the mould changeover
Time calculation of the mould from production through a product before the last one, after changing mould, nonconforming product first and then to produce new type of product, the time required.
Use of quick die change equipment, to reduce the production batch
If the time of the mould can be reduced to 10 minutes, you can by increasing the number of the mould to reduce the replenishment cycle time batch production process.
How to set up the mould time goal?
According to the principle of improving should start from the most close to the customer's process.Therefore, the improvement of the mould should be from the beginning of the assembly line, gradually spread to the upstream.The first step is to observe the scene, understand the assembly process of the operation of the mould, and field measurements in time.The downstream process should be based on the number of unit packaging production to arrange production, in order to achieve the goal of balanced production.In the downstream process, on the other hand, began to implement improvement at the same time, also can reduce the start of the upstream process time of the mould.In general, the improvement of the upstream process cost is higher, and time consuming, so more should start as early as possible!
Set the process of changing mould time
If the process time of the mould set to zero, can according to the number of packages, a case of a case of change of production models.Although this is ideal, but not impossible.Even in the case is not possible, the first stage of the target can be configured for a day or every two days to switch round once, then gradually shorten the time of the mould and until meet takt time.
The upstream production process time of the mould
At the beginning of the upstream process, it can improve minute by minute to shorten the time of the mould.Get started, then cut 50% of the time of the mould as the goal.Eventually, if the time of the mould can be controlled within 10 minutes, you can effectively shorten the replenishment cycle, and reduce the inventory.
The basic steps to shorten the time of the mould
1, measure the current time of the mould;
2, to distinguish the internal operation of the mould and external operation of the mould, and the difference between computation time;
3, as far as possible, the internal operation of the mould can be converted to external operation of the mould;
4, to shorten the time of the rest of the internal operation of the mould;
5, shorten the external operation time of the mould;
6, the new operation method standardization;
Shorten the time of the mould tool
Shorten the time of the mould tool has two kinds: the first is a hydraulic clamp, features must be used with T slot, hydraulic station work for a long time, the price is relatively cheap, nearly reliability.The second is electric permanent magnet quick die change equipment, features reduce the molar volume of 100 mm, simple and convenient operation, only need to pass a magnetization, electrical quickly absorb mould, will never fall down, removing the mold need to pass an electric demagnetization, price is a little bit higher, reliability.
Note: the internal operation of the mould (inside) of the mould, must to work when the machine is down;External operation (hereinafter referred to as exchange mode) of the mould, machine, also can undertake the work.
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