.TV shell mould machine

TV shell mould production would use TV shellinjection molding machine .We use our DAKUMAR injection molding machine for it.

Based on the 32''TV shell molds, the machine used is 1600T due to it with size around 1350*1450*700mm.

The machine we used is based on the injection weight.

first, according to the products decide use which kind of plastic material. Then calculate the injection weight.

Then based on the tie -bar distance choice the suitable machine.Because we need to put the mould on the machine.

Customer usually will adopt our suggestion to select our SERVO injection molding machine, which can save around 30-70% electrical power.

SERVO injection molding machine with high-performance servo dynamic control system and the oil pump as the power source,has the high response,lower noisy,high-control precision and saving energy advantages.With this advantages so that it have the breakthrough in the perfect connection of the electrical servo and hydraulic drive system.

Servo system have high performance energy saving result realize the reduction of cost,and realize the precise speed and pressure control,important,high efficiency,lower oil temperature,make oil tank much smaller,extend the use hydraulic oil and elements.

Any question about plastic injection molding, please feel free to let me know.Amd welcome to our factory for further discussion.

Snow

Export3@cnmould.com

technology of chair mould

We have rich experience for plasticinjection chair mold. As a professional plastic injection molding exporter, let discuss about the technology of the chair mold.

the main processing equipment:

1.high speed carved NC carved, Double spark machine, Ordinary spark machine, wire-electrode cutting ...

2ability of processing: mold design, mold making and mold forming

3.mould steel: mold core hardness should be more than 40 HRC, mold base hardness with more than 30HRC

4.mold cooling system used with recycle, improving the mold production

5.mold life ,we will design based on the customer's opinion

6.mold post-processing should be with nitriding, polishing and electroplate

The mold demands:

1.should analysis the mould forming technology,mould structure and craftsmanship,making sure that the mould  life could satisfied the clients'

2.Design the fully mould structure and parts processing,at the time should suggest the assembling and injection requirements

3.Analysis the parts quality before open the mould,like parting line,gate design,mould life

4.Mould appearance should make sure that there is no rust,no rush,no incomplete

5.Mould delivery should locked the mould,packaged good,and prevent rust

6.When sending the mould should provider a hole set of reference for mould maintenance and quick-wear parts

Any more question about plastic injection molding, please feel free to let me know.

Snow

Export3@cnmould.com

Preform Molding

As a perform molding manufacturer and exporter , we are devote to give our customers best service among perform industries.

Generally, the perform molding main equipments are: injection molding machines, plastic material dryer, material autoloader, cooling system, arefaction system and color machine.

Injection molding machines: we used is the hydraulic clamping machines, and it has clamping system, injection system, robot, electronic controller system.

As the perform mold, is has 6 main parts: injector plate (include moving plat and stable plate).moving plate including core, cooling system, ejector plate and press mold. Stable plate is including cavity, valve plate and hot runner .

Auxiliary machines for injection molding machines to got injection moldings.

a.      Plastic material dryer: for dryer PET original material

b.      Autoloader: it could control the volume of material

c.      Cooling machine: providing enough pressure and watering volume

d.      Air dryer machine for helping dry, and speeder dry material.

e.      Color mix machine: stock color for different color requirements.

Perform molding injection, the PET material should be dried for at least 8 hours then could be melt with good state.

Injection preform molding step:

Melting the material by the screw high speed turning, and the speed is very important for melt , it is too slow, then the PET material will not be melt properly ,if too fast, then the PET material will be burns. Of course the barrel is important for heating.

Injection step: it means injection the melting material to the mould .it need the injection molding machine provide the injection pressure for help the material full in the mould.

Then will need some time for keep pressure for the preform molding.

After that, then cooling the mould, the injection gate on the mold will be closed ,then cooling the mould by air and oil.

Got the perform moldings: this is the last step .some customer need the robot for pick up the mold, some are let the perform molding drop automatically.

 The technological parameter is very important for perform molding. As a perform mold manufacturer for many years, we have rich experience at this area.

Technological parameter is have influence in perform molding quality and quantity.

So, our injection molding machine operator will high control the injection weight, balance weight, screw speed, injection pressure ,dry and mould temperature ,also other important elements.

   

Further information , welcome contacting.

Snow

Export3@cnmould.com

injection molding machine working principle

Injection molding machine, one of important factors in plastic injection molding production line.There are many brand injection molding machine all over the world. But not all the brand is good.

Dakumar plastic injection molding machine, one of world famous plastic injection molding machine already sale to all over the world.

According to our experience, here we concluded our injection molding machine working principle.

Injection molding machine assembling with four main parts.

Adjust unit

automatic mould height adjustment shorten the time and reduce money when changing the mould.

Hydraulic unit

Hydraulic system adopt the famous brand pump and control valve ,controlling the machine operation precise ,make suer the machine precising and stability when operating.

Clamping unit

To ensure the a stable and rigid clamping system ,we adopt with FEM software.The five point inward moving double toggle system ensures high rigidity and precision for mould clamping and also reducing stress and strain effects.

Injection unit

To make sure the stress on screw balance when injection,we use dual pillar to supporting,use dual cylinder to injection.

Our purpose: stable, precise, excellent, economical.

The bright spot: based on the different material used design the special screw and barrel for our customer.

Any question ,please feel free to let me know.

Snow

Export3@cnmould.com

preform molding recycle time

As we all know, PET prefrom injection molding cycle time will be effected by many factors, such as the molding cooling design, PET preform cavity number, PET preform product weight, mold structure, machine function and so on.Today let us talk about how PET preform products weight effect the preform molding cycle time.

Preform mould from Sino-pk who is a subsidiary of Sino Holdings, with high precision dimension, high quality.

Preform mould has different cycle due to different preform dimension and weight.

The following weight and cycle time are the normal in our daily made preform mold:

1.7g preform mold cycle time is 12s-13s

2.17g preform mold cycle time is 15s-18s

3.23g preform mold cycle time is 18s-20s

4.100g preform mold cycle time is 40s-50s

The normal cycle time based on the different weight ,generally with 20cavities,if the

Cavity is more than that, then the cycle time will be more time.

We could provide customer hot runner due to some preform products with hot runner

Could promise the product more perfect.

We also could provide customer injection machine based on the mold dimension.

If customer use the whole set from our company, we could responsibility of adjust the mold with machine, provide good after service.

The more question or help, feel free to contact me.

Snow

Export3@cnmould.com