If
you want to get a good custom mold, many inexperienced customers normally like
to find some professional mould manufacturers. But even if you find a good
mould maker, you can’t express your needs well or you can’t have a good
communication with the company, that’s also can cause bad results. So custom
mould is also need some skills.
How
to custom mold successfully? What’s problems will appear when custom mould? In
custom mould process, which content must be discussed clearly?
We
will offer you a chair mould case to explain how to custom a good chair molds
successfully, and what’s problems we can avoid on custom mold project.
Product:
If
you want to custom a good mould, firstly, we need to know the product clearly.
Such like whether the mould design is reasonable, whether the product on market
can bring the profits, etc. How to save cost on the same product, for example,
we can make the mould size smaller, use a smaller machine to manufacturing or
the mould can use hot runner system to reduce the material cost and shorten the
cycle time, etc. For plastic chair, the most important except the style, we
also need to consider the chair strength, stacking condition, flash and the
design is reasonable or not.
Mould design
Mold design
rationality, will bring us great return benefit. Many times, we are wasting
money on the mould because of the lack experience.
The below
information is the key point that we need to treat very seriously:
1.
Mould
structure the simple the better
Because, for the
simple mould, there will be less rub during the mould operation, then the mould
life will be longer. When take chair mold as an example, some customers think
the more interchangeable back inserts the better, and it will be excellent if
all the chair back inserts and sit inserts can be interchangeable. However,
that will make mould testing very complicated, and you will have a lot of
trouble in your future mass production.
2.
High
requirements for cooling system
High quality
cooling system design can help you a lot on shorten the cycle time that
obviously brings directly benefit and effective to the customer. Simpler and
better than you hire a wise operating engineer.
3. The injection
gate chooses!
Sometimes it
will cause many problems from ignoring the injection forming on design, it is
not good if only considered about the surface while not the mould. As we know
if the mould with hot runner system, it without the waste material and improve
the injection cycle time, but in order to reduce the cost that we will use the
recycle material, while it with much impurity is not good for the hot runner. For
chair mould, if adopt the famous brand such as YUDO, it’s a waste of the cost.
If adopt the common hot runner system, they may not solve the problem, so even
if they used the filter, also can not ensure the quality is 100%. In this way,
we can choose the cold runner system, if design well for the injection gate
location, it is easy to break off the tail and not leave the marks.
Machine
selection
To custom mold
is not only related to injection molds, actually injection molding machine
selection is also a key point of a customized mould.
If you have enough
budgets, please consider to choose a greater tonnage machine. A great tonnage
machine will have stronger clamping force, it is very easy to solve the flash
problem. If you are not able to choose a big machine, definitely you may face a
lot of problem during long term manufacturing.
In order to
avoid such problems happen, customer have to provide the mould making company
detailed machine parameters.
This is our
decades experience for clients’ customize mould, if you have more experience
and better suggestion please contact us for exchange ideas and
mutual-improvement. Sino Mould Co., Ltd one of the biggest mould company and a
professional mold custom factory.
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