mold construction design for core toggle multi shot molding

We have discussed the rotary table multi shot mold and rotary shaft multi shot mold before, so today we will talk about the two-color injection of the core toggle mold!

The core toggle multi shot molding process is the easiest, because the core and cavity of the mold do not need to be moved. Conversely, changing the geometry of the mold cavity by moving the slider. Check below pictures:

double injection core toggle mold design

First inject material A into the cavity, at the same time the slider is in the fully extended position!

core toggle multi shot moulding design

Then retracting the slider to reveal a new portion of the cavity!

After that, material B is injected into the reconfigured cavity through a separate gate (above the middle nozzle), the remaining gap is filled by moving the slider!

Then the plastic part hardens and ejected from the mold. Sequentially circulated as the above to continue the molding!

Adding a slider to the mold adds the cost of the tool, but it still can be much more cheaper than rotating platen or rotary shaft mold. Unfortunately, it can not produce the complex multi colored plastic parts.

We Focare Mould, China top multi injection mold maker, always here ready to service you, if you’re still looking for the good multi shot mold maker in China!

Lucia

focaremould@yahoo.com

mold construction design for rotary shaft multi shot molding

In my previous blog, we’ve talked about the mold construction design for rotary platen multi shot molding, so here I’ll continue to share you my understanding for the rotary shaft molding.

Rotary shaft multi shot molding

The rotary shaft multi shot molding is similar to the rotary platen molding, and adding additional capabilities: The rotating platen can now be retracted from the core half. In addition, the cavities and cores of each stage have different geometries. Axis rotating performs switching between different core / cavity sets.

And it is common used in 2 component toothbrush molding!
Check below video for better understanding:

The rotary shaft 2k molding is more complex than the rotary platen 2k molding, and it requires a more complex mold construction design. This complexity further increases the 2k mold cost and delivery time, but it allows for the production of more complex multi component molded parts.

If you’re still looking for the good two materials mold maker in China, then we can be your another good choice.

Lucia

focaremould@yahoo.com

mold construction design for rotary platen multi shot molding

In the past, a multi materials part was done by using additional secondary services or more complex assemblies. However, today’s multi materials injection molding largely eliminates these additional requirements, making it much more easier to manufacture complex finished parts, faster and cheaper.

According to moving different molded parts can be divided into:

1.      Rotary platen multi shot molding

2.      Rotary shaft multi shot molding

3.      Core toggle multi shot molding

Rotary Platen Multi Shot Molding

The mold core plate contains two identical cores that are mirrored on the centerline of the platen and coincide with the axis of rotation. The cavity plate connected to the fixed platen contains two cavities with different geometries. In each cycle, the rotary platen completes the switching of the molded parts, and eliminates the need for manual switching.

Check below video for better understanding!

Here we only show the two materials mold, which can actually accommodate more materials. The rotary platen can be rotated by 90°, 120° or 180° depending on the amount of material used. Also it will need a special injection machine to provide the required rotation on the core side.

And on my next blogs, I’ll share you my understanding of mold construction design for Rotary shaft multi shot molding & Core toggle multi shot molding!

Hope it will help you for your multi materials molding !

Lucia

focaremould@yahoo.com

how to choose the suitable two color machine for your bi material molding ??

There are several different types two color machine, then how to choose the suitable one for your bi material injection??

Well, the first let’s talk about the turnable (table rotary) machine with two parallel injection units, it is suit for the most 2k plastic housewares! And 280T will be ok for the max. 300mm part dimension!

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Then customer may tell that they do not want the rotary table, as the machine cost will be much higher than without the table ones! If so, and you still want to run it in 2k automatically, then a transfert robot will be needed!

You’ll need the robot to pick the first color part, and put it again into the second color’s position, to have it second color injection! And by this way, then no problem the second nozzle is on the vertical side, L side or just upward the first nozzle, we can do the mold custom to fit with your machine!

The next let’s talk about the axis rotary (shaft rotary) machine, it is suit for the plastic parts which have both sides double colored, for example the toothbrushes!

And I’ll share more details in my next blog about the toothbrush making machine!

Hope it will help you!

Lucia

focaremould@yahoo.com

how to choose the suitable injection machine for your 2k toothbrush molding?

Here I’ll share with you some info about the axis rotary (shaft rotary) machine, it is suit for the plastic parts which have both sides double colored, for example the toothbrushes! There are also several ways to have the molded brushes:

  • by axis rotary machine + normal 2k toothbrush mold
  • by normal 2k machine +  2k brush mold with in mold rotary system
  • table rotary machine + 2k brush mold with in mold rotary system
  • two molds injection by over molding (insert molding)

What is axis rotary machine?? On the machine moving platen should equipped with below structure, together with the center axis, below the red marked axis in picture two, to eject the center insert and turn it 180° to shift the first color part to the second color!

toothbrush making machinebi material toothbrush mold design

Then what’s the difference between the normal 2k brush mold & in mold rotary?? Well, here the normal 2k brush mold means, the injection machine has the structure or system to drive the red center axis directly! If no, then we have to make the center axis rotate in the mold, we’ll use a rack system which will be driven by hydraulic cylinder, to drive to rotate the center axis!

Anyway, if you’re still looking for the good bi material brush mold maker in China, then we can be your another good choice!

Welcome your new inquiry & down visiting to check how we do our molds!

Lucia

focaremould@yahoo.com

bicolor cap molding supply

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To be honest, plastic caps molding market is very big, especially for cosmetic packaging, shampoo bottle packaging & oil packaging !

But now the single color cap is already flooding all over the world, so the profit for investors must be very less! Then how to get a higher profit?? How to get a breakthrough in the product of plastic caps?

Well, the answer definitely is 2k plastic caps!

So what’s the advantage if changing to 2k caps??

  • Suppliers can gain more time to occupy the market

As we all know, now piracy is very rampant, especially China and India. But since bicolor cap no matter product design or mold construction design, it is much more complex than single color cap. So it will not easy to be copied! So suppliers can gain much more time to occupy the market, it means can gain more time to get more profits before the cap has been copied and enter into the market! And for all businessmen, the profit is the key to think about to start a new project!

But compared with single color cap mold & machine, the invest of two color mold & 2k injection machine will be much higher, which may also discourage the most investors!

But don’t worry, we Focare Mould can be your good choice to continue your 2k projects! We’re the top two color mold maker here in Taizhou, also we have our own table rotary 2k machine & shaft rotary bicolor injection machine, which is able help to do the molding services for you!

As for the mold cost, sure we’ll offer you our best, also if your required molded caps quantity is large, we’re ok to bear the mold cost by ourselves!

So highly welcome your molding 2k caps inquiry!

Lucia

focaremould@yahoo.com

two color insert molding

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Focare Mould, China top 2k mold maker, quality offer 2 component plastic injection mold, two color mold rotary, two molds injection over molding, 2 color insert molding!

Well, as we all know there are two ways to make the 2 colored part, one is by double shot injection at one time, second is by insert over molding, need further secondary molding processing. But why some parts can only go ahead with the insert molding? while some parts can go with the both two shot injection & over molding?? Well, it should depends on the product design!

If you have a new project of 2k molds, then pls come to us. We can do the custom of your requirement. Or even you have only the thought, no details 2D or 3D drawings of the part, no problem, we’ll do the good two color design for your choose!

Let’s start with a trial mold, then you’ll know what we can do for you!

Lucia

focaremould@yahoo.com

two color molding service supply

Focare Mould, being the top rank China two color mold maker, quality offer bi component molds, tri material plastic injection molds. Also we’re equipped with different types two color molding machines, to meet customers’ different double colour molds, also to offer two color moulding services!

 

  • Table rotary two color machine

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We have Fu Chun Shin FCS280T table rotary two color machine, and it is ok to molding almost all below two shot plastic housewares, for example plastic injection mold multiple bowls, mugs, dinner plate, etc.

China 2K mold maker

 

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We have Beston 350T axis rotary two color machine, and it is ok to molding bi component toothbrushes, shaver, manual tools, etc.

China bi component molds toothbrushes maker

 

  • Normal injection machine with an external injection unit

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Sometimes customer find to buy a two color injection machine is very expensive, then you may choose this external injection unit, to equip with your normal standard machines! Without this unit, you can also molding single color parts! And it is ok to molding for example the double colour top flip caps!

China double colour top flip caps

 

  • Overmould injection machine 

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As overmolding will need two molds, after you get the first color part from the first mold, then you need to manual put this first color part into the second mold, to have it double colored! So it will need the standard machines! And we have two sets Haitian 250T machine to meet your molding requirement!

China watering jug overmould

Pls feel free to contact to custom your quality bi component molds! And we’ll help to figure out which is the best molding way for your two colored product!

Lucia

focaremould@yahoo.com