Injection molding machine type: micro injection molding machine

author: Universe plastic

2024-05-11

Micro injection molding machine is a type of injection molding machine specially used to produce small plastic products. It has the advantages of small footprint, low energy consumption, flexible operation, etc. It is very suitable for injection molding to produce tiny and precise plastic parts.

Micro injection molding machines are very competitive in small batch production, small-size parts manufacturing, and the needs of small businesses. The following is a detailed introduction to the micro injection molding machine by Universe Plastics Engineers:

Main system structure of micro injection molding machine

1. Injection system

Structure: hopper, barrel, screw, nozzle.

Function: The hopper transports plastic particles to the barrel. The screw and barrel are responsible for heating and melting the plastic, and injecting the molten plastic into the mold cavity through the screw. Finally, the molten plastic is injected into the mold cavity from the end of the screw through the nozzle.

2. Mold clamping system

Structure: moving template, fixed template

Function:The fixed platen plate is responsible for fixing the mold, and the movable platen plate provides the mold closing force to ensure that the mold is tightly closed during the injection molding process.

3. Control system

Structure: PLC or microprocessor control, HMI

Function:The microprocessor is responsible for accurately controlling parameters such as temperature, pressure, and speed during the injection molding process. The HMI provides an operating interface for injection molding personnel to easily set and monitor injection molding parameters.

Working principle of micro injection molding machine

Put the plastic particles into the barrel through the hopper, heat the barrel and rotate the screw to shear and melt the plastic, and then the following injection molding steps can be performed cyclically:

Step 1: Close the mold and operate the injection molding machine to close the injection mold.

Step 2: The screw rotates and pushes the molten plastic forward into the mold.

Step 3: The temperature control system of the injection molding machine allows the plastic in the mold cavity to cool and solidify.

Step 4: Open the mold and operate the injection molding machine to open the injection mold.

tep 5: The injection molding machine controls the ejection system to push the molded plastic out of the mold.

Vertical small injection molding machine

Application of micro injection molding machine

1. Electronic components: Produces small connectors, small switches, and plastic parts for electronic products.

2. Medical equipment: manufacturing small medical plastic products such as small catheters, small needle holders, and surgical instruments.

3. Precision parts: used to produce small gears, small bearings, and instrument parts.

4. Daily necessities: production of plastic toothbrushes, buckles, clips, small toys, etc. used in daily life.

5. Prototyping and R&D: used for material research, process development and new product prototyping.

Micro injection molding machine types

There are currently various sizes of micro injection molding machines, such as small desktop micro injection molding machines. Here are some common sizes:

Dimensions: 90x37x59cm, weight approximately 100kg.

Dimensions: 130x43x68cm, weight approximately 150kg.

Dimensions: 170x50x125cm. Weight is about 200kg

There are also many micro injection molding machines of different sizes on the market to suit different needs and application scenarios. In addition, there are micro injection molding machines with different electrical power, usage methods, clamping force, heating temperature, etc.

Advantages of Micro Injection Molding Machine

1. Small footprint

The micro injection molding machine has a compact structure and a small footprint, making it suitable for use in small production environments and laboratories.

2. Low energy consumption

Due to the small size of the equipment, the energy consumption of the micro injection molding machine is relatively low, which is energy-saving and environmentally friendly.

3. Flexible operation

The equipment is relatively simple to adjust and operate, making it suitable for a variety of low-volume production and R&D uses.

Disadvantages of micro injection molding machines

1. Production is limited

The output of micro injection molding machines is relatively low and is not suitable for large-scale production needs.

2. Accuracy problem

Due to their miniaturized design, micro injection molding machines may not be as accurate and stable as large injection molding machines.

3. Manufacturing restrictions

Due to its small working envelope, it cannot produce large or complex plastic parts.

Summarize

Micro injection molding machines are very suitable for the production and manufacturing of small plastic parts and are very good learning or entrepreneurial equipment for injection molders. When choosing a micro injection molding machine, in addition to considering the size, you also need to consider the functionality, price, brand, after-sales service, etc. of the machine.

Dongguan Universe Plastic Factory has more than 15 years of injection molding experience. It has a professional injection molding team, injection molding equipment, and quality management system, and can provide high-quality injection molding services.

If you are looking for a small batch injection molding service provider, please contact us to get the latest service quotation.

HDPE Injection Molding Processing Guide

Injection mold material: aluminum alloy