1. Classification according to the shape of the injection molding machine

According to the arrangement of the injection device and the mold lock device, it can be divided into vertical, horizontal and vertical composite.

A, vertical injection molding machine

1. The injection device and the mold lock device are on the same vertical center line, and the mold is opened and closed along the top and bottom directions. It covers an area of only about half of the residential machine. Therefore, it is about twice the production of an area of area.

2. Easy to achieve embedded formation. Because the surface of the mold faces up, it is easy to put in the embedded parts. Using the under -template fixing and upper template -capable models, the band conveyor device and the robotic phase combination can easily achieve fully automatic embedded forming.

3. The weight of the mold is opened and closer by the horizontal template support. There will be no phenomenon that the template cannot be opened and closer due to the phenomenon of the mold gravity caused by the gravity of the mold. It is conducive to maintaining the accuracy of machinery and molds.

4. Through simple robotics, you can remove each plastic -type cavity, which is conducive to precision molding.

5. Generally, the general model lock device is open, and it is easy to configure various automated devices to adapt to the automatic and exquisite products automatic molding.

6. The strap conveying device is easy to achieve the middle installation of the mold, which is convenient for automatic production.

7. It is easy to ensure the consistency of resin liquidity in the mold and the distribution of mold temperature.

8. Equipped with rotating countertops, moving countertops, and tilting tables, it is easy to achieve embedded components and in -mold combination.

9. When trying to produce in small batches, the mold structure is simple and low, and it is easy to unload.

10. After being tested by many earthquakes, the vertical machine has a better shock resistance due to the low center of gravity.

B. Credit injection molding machine

1. Even due to the low fuselage, there is no high limit on the resettlement plant.

2. The product can be automatically dropped, and automatic molding can be achieved without using a robot.

3. Due to the low body, convenient supplies, and easy maintenance.

4. The mold must be installed through a crane.

5. Under the side side by side, the molding products are easy to collect and package from the conveyor belt.

C. Corner injection molding machine

The axis of the angle injection machine injection screw is arranged vertically with the motion axis of the mold mechanism template, and its advantages and disadvantages are between the vertical and horizontal type. Because its injection direction and mold typing surface are on the same plane, the angle injection molding machine is suitable for the mold or molding center of the asymmetric and geometric shape of the side -pouring port.

D. Multi -site molding machine

Its injection device and the module device have two or more working positions, which can also arrange the injection device and the molding device for multiple arrangements.

2. Classification according to the power source of the injection machine

A. Mechanical handmade injection molding machine

In the beginning of the injection molding machine, it has appeared in the form of hand -made mechanical operations, and in the initial stage of the injection molding machine just invented in the last century. The modeling mechanism and injection molding mechanism are all using the principle of leverage to generate mold lock power and injection pressure, and it is also the basis for modern elbow -type molding agencies.

B. Hydraulic injection molding machine

With the development of industrial technology, especially the development of hydraulic control and other technologies, all hand -operated mechanical injection molding cannot meet the requirements of production, and hydraulic injection molding machines are born.

The speed and pressure control of hydraulic injection molding machines is convenient, and the mold locking pressure is high (at present, the world's maximum model lock molding machine is 8,000 tons, and the minimum consistent minimum lock mold injection molding machine), accurate control, can meet the needs of special purposes. This is also the main reason why hydraulic injection machine has a long history and endlessness. From the current development, in the future, hydraulic injection molding machines will still occupy the main setting.

Each movement of the injection molding machine is controlled by controlling the flow rate, pressure and direction of the hydraulic power source.

C. Pneumatic injection molding machine

The pneumatic injection molding machine is a desktop injection molding machine with compressed air as the power and the hydraulic cylinder as the execution component. It has the characteristics of low energy consumption and light equipment of the pneumatic system, but also has high stability and controllable performance of hydraulic equipment. The main features are as follows:

1. Due to compression of air as the power, there is no pollution to the environment and no noise at work. A air compressed pump station can drive multiple pneumatic injection molding machines at the same time. The maintenance and maintenance of the equipment is easier and the cost is lower.

2. The equipment adopts a special gas -liquid transmission system. The control pressure of the equipment is as high as 400kg/cm2. The special performance of its structure and power can make the equipment design lighter and miniaturized. It is particularly suitable for the production of high -precision products within 15 grams of radiation, such as audiovisual, DC power supply, charger, communication, network component connector and other hardware and plastic accessories. The work method of traditional hand -promoting activity molds does not change, and efficiency is increased by 20%.

3. The feeding shooting system adopts a built -in self -rotating screw melting glue and the plunger ejaculation structure. Make the rubber more sufficiently plasticized, the exhaust performance is better, which is simpler than the screw hydraulic injection molding machine, and has a better molding effect and accuracy. The unique cannon and screw design can perfectly solve the problem of thermal stability of environmental protection and low -toxic plastic; completely eliminate the destruction of the screw in the molecular structure and the plastic comparative comparison equipment during engineering plastic melting.

4. Due to the miniaturization of the equipment, energy saving and environmental protection, the production of production workshops can be arranged into a assembly line working method. This working method is doubled compared with traditional production layout methods, saving more than 1/5 of human resources.

D. Electric injection molding machine

Compared with the traditional all -oil pressure injection molding machine, the full electric injection molding machine completely abandoned the oil pressure driving system generated by the full oil pressure machine oil pump Mada on the power -driven system. The drive motor (Servo Motor) driver. The transmission structure uses the roller screw and synchronous belt, which greatly improves the control accuracy of the injection molding machine power system and completely solves the hydraulic oil to the environment of the environment to the environment. The problem of pollution and the noise generated by machinery also declined.

The full electric injection molds have the advantages of energy saving, environmental protection, low noise, and accurate measurement. The full electric injection molding machine control system is simpler than the oil compressor, the response is also rapid, and it has excellent control accuracy. It can provide complex synchronization actions and shorten the production cycle.

3. Classification according to plasticization

1. Injection molding machine: poor mixing and poor plasticity. You need to install a diversion shuttle device. It has been rarely used.

2. Portable screw -type plastic injection molding machine: Relying on screws for plasticization and injection. The mixing and plasticity are very good, and now they are most used.

3. Screw -plunger -type plastic injection molding machine: Relying on screws to plasticize and injects by the plunger, two processes are separated.

Fourth, classify according to the formation method

1. Elbow type

The most used at present is no patent barriers. After a long test, it is the cheapest, simple, and reliable way of moderation.

2. Direct pressure

Use a single or multiple hydraulic oil cylinder to directly use the mold to generate the locking force.

Advantages: accurate control of molding power, good protection for molds, and will not affect the parallel of the template due to mechanical wear. Suitable for molds with high requirements.

Disadvantages: The energy consumption is relatively high -elbow -type and complicated.

3, two -board style

By changing the force length of the Corinum pillar, adjust the position of the high -voltage lock mold, so as to cancel the tail plate structure used to adjust the mold. Generally, it consists of an open -closing mold oil cylinder, dynamic template, fixed template, high -pressure oil cylinder, and Corinthian locking device. The opening and closing mold is directly driven by the oil cylinder to reduce the mechanical parts.

Advantages: Fast speed adjustment speed, large -capacity thickness, and long life of mechanical wear.

Disadvantages: High cost, complex control, and difficult maintenance. Generally used for oversized machines.

4. Composite

The combination of elbow, straight -pressure, and two -board type.