Archive for Srpen 15th, 2011

The working principle of an injection moulding machine

The working principle of an injection moulding machine

Garbage Bin Mould With the mould and gradually occupy a large share of the commodity market, more and more concern in the injection mould.
Injection molding is a complex mechanical parts, creating a solid piece of molten material by a reciprocating screw system through a die. This machine is composed of many parts; it mainly consists of a funnel, with reciprocating screw barrel, temperature control devices, clamping devices and injection molds itself.
The process begins with the establishment of a mold. Mold by the mold size, they are from the designer or engineer through a three-dimensional computer model. Mold is designed so that the two halves – the cavity, the mold core – separate along the parting line. This will allow easy ejection from the injection molding machine, part of the cooling. If the wrong part of the mold design and mold can be caught, can cause damage.
Basic concepts of plastic molding machine has more than seven years. Since then, the original idea – injecting molten plastic into the mold – the rapid evolution of an efficient, elegant and flexible tool to create everyday products. How it works:
Raw materials and color of the Fed into the machine barrel through the funnel. Raw materials in the barrel by the pressure and temperature until they are melted and plasticity. Reciprocating screw injection barrel will be, the exact amount of molten plastic into the mold injection is now set and control temperature, pressure and speed. Once the mold is filled with molten plastic injection process will be shut down. Part is allowed to cool to its intention to take from the mold. This may take some time depending on material, thickness, overall shape and size of the part is manufactured. When cooled, the mold opens automatically. Mold is a built-in pop-up mechanism, in preparation for a new cycle. If you are still a part of the completed part of the mold to mold this part has been completely re-opened until the pop-up. When the part is transparent machine hopper to release more material and color of the barrel and a new cycle will begin. Autonomous nature of the injection molding machine, it can be no control and can run continuously throughout the day and night.