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PLASTIC MOULD / SINO HOLDINGS GROUP / Set Homepage / Add Favorite

  Mould Blog

Sino Mould Co., Ltd
Add : 369# XinJiang Rd., Xinqian Street, Huangyan Taizhou, Zhejiang, China
P.C. 318020
Tel : 86 576 84086666
Tel : 86 576 84023777
Fax : 86 576 84018996
Email :sino-mould@hotmail.com

            mould@china.com 


Pubdate 2013-10-23 09:56

Sino Mould Co., ltd is famous domestic stack mould manufacturer Zhejiang, China, offer global plastic trade high quality stack plastic mould, thin-wall stack plastic mould, stack molding and stack plastic mould export service.

Mould name: stack mould

Country of origin: Huangyan,Taizhou

Manufacture: Sino Mould Co.,Ltd

Steel material; S45C, P20, 718H, 2738, 738H, NAK80,SKD61  ect

Mould base: SINO,LKM or Self-made.

Hot runner system: Anole, YUDO, HASCO,M-H-R,etc

Design software: Autocad, UG, Catia, Solidworks

Posted by Snow
Email: export3@cnmould.cn   export9@dakumar.cn
Skype:sinogroupe-71


 

 
 

Pubdate 2013-10-23 09:53

Hot runner is a heated parts which inject the thawing plastic into mould cavity. Hot runner system can be divided into two types: fully hot runner, semi hot runner. Different hot runner mould price for different types.
Why we choose hot runner moulds to produce product?
 

Because they have below advantages:

1. Shorten the cycle time
2. Reduce the waste in production
3. Improve product’s quality
4. beneficial for automotive production
5. Extend appliance area of injection technology.


Welcome to our company to discuss with us about hot runner.

Posted by Snow
Email: export3@cnmould.cn   export9@dakumar.cn
Skype:sinogroupe-71
 

Pubdate 2013-10-21 13:15

In the process of plastic injection molding, there may be many problems. Such as distortion, shrinkage, etc.

Distortion will happen in one of the following conditions:

1. uneven cooling system

2. unsuitable injection system

3. unsuitable molding parameters

4. product structure, such as unreasonable wall thickness

When the product is produced, it’s hot and the inner stress of material cause the product to curve or distort during the process of gradual cooling.

We can improve by modify the injection gate, cooling system, product structure etc. and adjust the injection molding parameters. We can take advantage of CAE measures such as Moldflow to find out the problem.

If that still cannot solve the problem, there is a physical way we can do.

We can make a fixture. Put the products in the fixture. After the product cooled, the product will not distort. But it needs another labor to do this job.

We can also cool it using special equipment, but that way is costive.

 

Pubdate 2013-10-21 13:00

Plastic injection mold cavity decides product output.
Especially for small products, and mass consumption products, multi-cavity mould is required. Choose mold cavity is also an important step.
Usually the mold cavity is choosing according to required output and molding cycle time.
In some conditions, other elements need to be considered.
First condition:
It’s a big plastic company. It wants to start a new project. The output requirement is large.
It already has some injection molding machines. And plan to use the machines to produce the products.
For example, the product is thin wall container. 2 cavity cycle time is about 4s, 4 cavity cycle time is about 6s, 8 cavity is about 8s(cycle time also related to injection machine). If customer required output is 3000 pcs an hour, we will suggest 8 cavity. But 8 cavity mould needs larger high speed injection machine. The buyer already has 2 smaller high speed injection machine, then he could buy 2 2-cavity molds. He needs not buy another large machine, and 2-cavity mold is easier to maintain.
Second condition:
It’s the first time customer start a plant, he has no molds and no machines. He has no formal experience.
For example, he wants to produce a whole set of disposable tableware. Spoon, fork, bowl, knife, plate. The required output is not large, 1000 sets per hour. The spoon, fork and knife is similar, the bowl is much slower. The bowl mould should have 4 cavities. The spoon, fork and knife should have 3 cavities each. Then we can make the spoon, fork and knife in the same mold, according to product property, make it reasonable cavity number. In this way, customer only need to buy 2 injection machines.
This case is not a very typical one. But for new starters, this kind of suggestion is good, it saves first time investment.
Welcome further communication on your project.


Posted by Nicole
Service1@sino-pm.com

 

Pubdate 2013-10-21 12:52

Nowadays, more and more molds are using hot runner. Hot runner is said to be the prolonged part of injection machine nozzle. Famous hot runner brands such as Moldmaster, Husky, Maenner, Yudo, etc. Using hot runner is necessary for some molds such as multi-cavity molds, thin wall product molds, precision molds, highlight molds, etc.
Actually, hot runner molds are more expensive than cold runner molds. And it requires on users’ maintenance ability.
How could its merits make up for its high cost?
Hot runner mould will have no waste material. On one part, it saves material. On the other part, it makes fully automatic production possible and saves labor cost. And the gate mark appearance is more beautiful.
Using hot runner decrease cycle time, thin wall container mould using hot runner could reach 3-4s for each shot.
Hot runner mould could have many cavities and stably produce similar property products.
Hot runner mould is suitable for thin wall product molds, precision molds, highlight molds, multi-color or multi-material product molds, etc. It produces high quality products.
With these merits, it is now the main trend of injection mold.
We can say, hot runner pushes injection molding field forward. And will lead out more breakthroughs in this area.
As hot runner injection mold manufacturer, we welcome you to contact us for mold order and technical consultant.


Posted by Nicole
Service1@sino-pm.com
 

Pubdate 2013-10-21 12:44

We are plastic injection furniture mold manufacturer and worldwide exporter for over 2 decades. Furniture Mould is one of our companies’ main categories of product. We are professional in furniture mould including:

Chair mold, such as for armchair, armless chair, kids chair, folding chair, legless chair seat, ghost chair, gas assisted chair, etc.

Table mold, such as for round table top, rectangular table top, table with legs, table leg, etc.

Stool mold, such as for adult stool, steel leg stool seat, kids stool, folding stool, etc.

Bench/sofa mould

Cabinet mold and drawer mold

Our furniture design has 2 advantage points:

Mold design largely influences mold size. We make the mold size as small as possible, so it requires smaller machine, and saves energy.

Furniture products are large parts and have high requirements over appearance. Cooling system is very important. We design the waterline close to product surface, increase waterline number to achieve even and effective cooling.

If your furniture has special design and special requirement, we have strong innovative ability to offer you custom solution.

To make furniture products more beautiful, IML (in mold label) could be considered. Labels could be custom-made and lables using IML will be bright in color and long lasting.

Should our furniture mold be of interest to you, please let us know.

posted by Nicole

service1@sino-pm.com

 

Pubdate 2013-10-21 12:34

We are dedicated to plastic injection mold for over 2 decades. Plastic injection package mold is a big branch of our product. We specialize in PET preform mold, various cap mould, thin wall product mold, cup mould, IML moulding.

For package moulds, we focus on multi-cavity, short cycle time, long mold life, easy maintenance, quick delivery.

In order to realize the targets to offer customers outstanding molds, we keep researching and innovating on molding technology. We are the leading mold company in multi-cavity PET preform area, in multi-cavity water cap, flip-top, 5-gallon cap area, thin wall container area and IML area.

We are based on our strong design engineer team, precise tooling machines, and highly experienced mold makers.

Package mold has special requirement over precision. For example, PET preform mold, if the lathe machine is not precise, there may be decentration, and then the preform is prone to broke when blow bottles. Most of our tooling machines are from Europe and Japan, and we are strict with tooling process to achieve required dimension and surface finish for package moulds.

PET preform mold, injection mold, package mould
 

Should any product of ours be of interest to you, please feel free to contact.

posted by Nicole

service1@sino-pm.com

 

Pubdate 2013-10-14 22:01

It is easy to find that PVC pipe fitting moulds usually have very big runner design,sometimes, the runner weight is even heavier than products,this is big waste for the company.The reason is because PVC material melting flow index is very low, it is not easy for flowing,if the runner is small, then the material filling and injection would be very difficult.
As we know, for multi cavity fitting moulds, because of the ejection requirement, the space for cavity layout is big,so PVC plastic mold runner is long, so if the runner size is not big enough, material flows very slowly,the material will become cold in passing long route. So PVC molding runner design should be reasonable, on one side, it is easily for material filling,on another side,designers need to consider to save the material as much as possible for PVC products molding company.


Miss Alice
moldingtech@gmail.com

 

Pubdate 2013-10-04 17:58

Sino mould has made many kinds of storage box mould, accumulate much experience in making storage box mould. Some pictures for your reference.

The steel for storage mould is general 718H/P20 pre-harden steel as cavity/core insert,accordingly to your lifetime requirement.

For the storage box mould is well polished and good fitting with the storage box cap.

For the injection gate this is 4~6 tips of hot runner.

We put the mould testing on 780Ton injection molding machine.

If you’re interested in this moulds pls kindly contact with us.

Posted by Vicky

Click here contact me:sinomould-06
Pubdate 2013-10-04 17:47

Sports bottle are most used of PE and PP, blowing PE/PP perform mould then molding the sports bottle.
For the PP perform mould its mould design is complex than PET preform mould, but basic structure is the same.
Each cavity self locking;
hot runner valve gated system;
Hot runner nozzle single point temperature control (different with PET pressure controller),Uniform heating temperature;
Excellent water cooling efficiency of cooling system;

The PP preform product design is very important , engineers will consider if the preform design and the thickness can allows the bottle in perfect blowing performance.
To test this, general make PP preform testing mould with single cavity.
Besides, the molding temperature is also very essential for PP preform blowing effect.

If you’re interested in this mould pls kindly contact with us.\

Posted by Vicky

Click here contact me:sinomould-06

 

Pubdate 2013-10-04 16:39

For the plastic drawer Consists of three parts container cap and stents.The three parts should be fitting very well otherwise will be easy stuck.

On the bottom of the drawer there has two parts design as limit position avoid the drawing drop outer.

Drawer will be easy deformation if the injection parameter is not adjusted well or the cooling condition is not good.We must find some method to avoid this deformation.

The plastic melting and shrinkage are also very important for plastic drawer mould.

If you’re interested in this mould pls kindly contact with us.\

Posted by Vicky

Click here contact me:sinomould-06
Pubdate 2013-10-04 16:22

 

Sino mould has made many kinds of laundry basket mould, accumulate much experience in making laundry basket mould. Some pictures for your reference.

The steel for laundry basket mould is general 718H/P20 accordingly to your lifetime requirement.

For laundry basket usually we design it with inner R angle avoid the hole scratch the clothes or other goods.

For the injection gate this is 1 tip large gate hot runner.

We put the mould testing on 780Ton injection molding machine.If you’re interested in this moulds pls kindly contact with us.

 

 Posted by Vicky

Click here contact me:sinomould-06
Pubdate 2013-10-04 16:18

Sino mould has made many kinds of double color mould,such as double color bathtub mould,double color helmet mould,double color broom mould etc.  Generally they are molding  as such methods:

1.     over molding

2.     rotating injection molding(machine rotating or the mould rotating)

For the double color bathtub mould we using Secondary injection molding,first injection the main white part then injection the bottom green parts. The green parts is made of rubber which is prevent slippery.The injection molding machine we using the ordinary one it is common to say,but we added one injection unit on the machine  has an Angle of 90 degrees to the mould achieve the double injection.

If you’re interested this kinds of mould or other double color injection mold,pls kindly contact with us.

Posted by Vicky

Click here contact me:sinomould-06

Pubdate 2013-10-04 16:09

Sino Mould are specialized in manufacture plastic chair mould, for example common chair gas assistant chair, armless chair, sofa chair beach chair etc.
As the armless chair mould we general using 718H/P20 for mould cavity core inserts, we put this kinds of armless chair mould on 650Ton and 780Ton injection molding machine.
If you have drawing of chair design want to become reality pls kindly contact with us.We can support your Research and development project if your design is special or modern.

If you’re interested in plastic chair mould welcome to contact with us.

 

Posted by Vicky

Click here contact me:sinomould-06

 

Pubdate 2013-09-29 16:00

Sino Mould China is good at making thinwall container moulds,we supply mould for the food packaging industry,with IML solution.We make multi-cavity thinwall moulds with high speed injection.Usually we supply whole injection molding line for our customers.

For the wonton bowl mould,it must with good appearance for the polishing and fitting.Wonton bowl have to contain high temperature water,the raw material should be suitable for microwave safe.At the bottom of the bowl,there has a high rib in order to avoid hot problem.The add water mark location inside the container is very important,because the lid and container are not water proof.We could not put too much water into the bowl,otherwise it is easy leakage.

We use stainless steel material for the food container mould,it is very important for the food packaging industry.The mould tooling machines we use high speed CNC milling machine and precision lathing machine.With good managing and quality control system,we could get high quality injection moulds.With Husky hot runner system,the mould could run for long time continuely with right maintenance.

Post by Miss Celina
Email: export1@sino-mould.net
Skype: sinomould.dakumar7

Pubdate 2013-09-29 14:07

In order to meet fast cycle time and high production efficiency, high speed injection molding machine is necessary and critical important, especially for high production plastic products like small thin wall container, plastic caps and so on.

Sino holdings group develop one hybrid molding machines to catch good fast cycle injection molds. This is one innovator for high speed injection moldings. Our hybrid molding machines have below 5 features: high speed, high safety, high injection precision, high energy saving and high stability circulation ability.

With this hybrid molding machines, you can reach very fast cycle time. For a 1.2L thin wall container 2 cavities running on this machine, it can reach the cycle time with 6.5S. if you are interested in our hybrid molding machines, pls do not hesitate to contact with us.

Ms Diana

Mail: sino2@cnmould.com

Pubdate 2013-09-29 14:00

medical use molds supplier, sino mould, is specialized in various medical use molds manufacturing, like medical molds which is widely used in hospital. For instance, the medical use molds like PET testing tube molds, medical syringe molds and so on.

We not only offer medical use molds for our customers, we also can supply with related molding machines and molding service. in our company, we have one dust proof workshop especially established for these kinds of medical use item molding and for other food containers injection molding service. this is to make sure meeting with medical parts quality standard.

For medical molds, we have successfully developed with syringe plunger mold, syringe barrel molds, and syringe gasket molds. If you need medical use molds, pls feel free to contact me at
sino2@cnmould.com

Pubdate 2013-09-28 09:10

Chinese injection molding company, sino mould offers different type molding service for customers. If you want any molding service or need to search out molding service company in china, pls feel free to contact with sino.

Mainly we offer molding service as below:
Normal injection molding service like chair molding service, crate molding service
Bi-color injection molding service like bi-color cup molding service
In mold labeling molding service like thin wall IML container molding line
Gas assisted injection molding service
 
Sino offers our injection molding service based on our developed molds technology and innovations on molding service. We would make you satisfied with our molding service quality. Welcome to contact with us.
 
Ms Diana
Mail: sino2@cnmould.com
Pubdate 2013-09-28 08:43

How to choose a professional bi-color PC mould maker?A bi-color PC mould maker have to know how to make a bi-color mould,have bi-color PC mould testing devices,have experience for adjusting the machine setting.Sino Mould China make for PC chair mould,bi-cplor PC chair arm mould for the airline company.We could supply you high quality PC moulds.

For the common single color PC screw injection machine,how could we make bi-color injection?Sino Mould China could offer you two ways,one way is that we could design one seperate injection unit for the machine,we make bi-color mould,with the common injection machine and injection unit,we could get two color injection.The other way is to use over injection,we have to make two moulds.

It is very important for the PC parts surface,the injection gate location and machine setting are the two main points to avoid silver mark and sink mark.For the PC transparent parts,clear appearance could raise the product quality much.Please do not hesitate to contact me if you have any other question.Thanks.

Post by Miss Celina
Email: sinomould99@gmail.com
Skype: sinomould.dakumar7

Pubdate 2013-09-25 22:09

Sino mould is one of the most professional plastic injection molds supplier, especially for plastic furniture molds manfuacturer, like plastic chair injection molds.

 Annunally sino mould makes more than 80 sets plastic chair molds,we make the chair mold accrding to customer request like originals saples or drawings. In order to make chair maket with good saling, we more pay attention to concept chair molds supplier than common plastic chair mold, like concept chair design, PC transparent chair mold making, art shape chair molds making, gas assistance chair molds.
 
In addtion, we offer the plastic chair prdduct design, we can make according to customer special requirements, and if necessary we can make prototype samples first to help concept chair mold making and analysis problems during chair molds making.
 
For more information about plastic chair molds, pls feel free to contact with us.
 
Ms Diana
Mail: sino2@cnmould.com
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