English
Español
عربى
русский
What are the functions of the components of the injection molding machine?
Screw motor
A screw motor for a plastic injection molding machine is one of the main components of a molding machine. The motor is used to drive the injection mechanism. The speed is controlled by a speed controller. The speed of the motor is adjusted to maintain a predetermined injection rate. Once the injection motor moves a certain distance, the control switch switches to a pressure control system.
In the first step, the motor is turned clockwise. This rotation causes the screw to rise within the injection cavity. The screw then travels through the heating cylinder and spline nut, which are both driven by the motor. The material is then packed into the cavity of the mold at a predetermined rate.
Clamping unit
A plastic injection molding machine's clamping unit has two basic parts: a piston chamber and a compensating cylinder. The piston chamber is filled with fluid, and the compensating cylinder has a piston that is connected directly to the cylinder via a connection line.
The clamping unit is responsible for holding the mold in place. It must be able to apply a force equal to the injection force. This force is derived by using a simple formula. There are two types of clamping units: a toggle system uses a toggle link to exert pressure, and a direct pressure system uses hydraulic power.
Cooling channels
Cooling channels on plastic injection molding machines help the mold tool closely follow the shape of the part being molded. These channels do not simply follow the straight line of sight but also follow the twists and turns of more complex parts. This results in improved cooling efficiency and faster cycle times. However, there are some limitations to this design.
The diameter of the cooling channels may be limited by physical constraints. The area of these channels will decrease if they are connected. Another factor to consider is the design requirement of the mold. The diameter of the cooling channel should be as close to the wall of the tool as possible.
Screw speed
The screw speed of a plastic injection molding machine is an important part of the process. While higher speeds produce higher output, they can also increase back pressure, which leads to deterioration of the plastic. Especially for temperature-sensitive plastics, higher speeds can cause cracking and melting. The screw speed should be adjusted according to the application.
The screw speed is controlled by adjusting the back pressure and the volume of the melt in the hopper. This control ensures that the melt is properly compacted. As the screw rotates backward, back pressure is generated on the other end of the cylinder and the screw.
A screw motor for a plastic injection molding machine is one of the main components of a molding machine. The motor is used to drive the injection mechanism. The speed is controlled by a speed controller. The speed of the motor is adjusted to maintain a predetermined injection rate. Once the injection motor moves a certain distance, the control switch switches to a pressure control system.
In the first step, the motor is turned clockwise. This rotation causes the screw to rise within the injection cavity. The screw then travels through the heating cylinder and spline nut, which are both driven by the motor. The material is then packed into the cavity of the mold at a predetermined rate.
Clamping unit
A plastic injection molding machine's clamping unit has two basic parts: a piston chamber and a compensating cylinder. The piston chamber is filled with fluid, and the compensating cylinder has a piston that is connected directly to the cylinder via a connection line.
The clamping unit is responsible for holding the mold in place. It must be able to apply a force equal to the injection force. This force is derived by using a simple formula. There are two types of clamping units: a toggle system uses a toggle link to exert pressure, and a direct pressure system uses hydraulic power.
Cooling channels
Cooling channels on plastic injection molding machines help the mold tool closely follow the shape of the part being molded. These channels do not simply follow the straight line of sight but also follow the twists and turns of more complex parts. This results in improved cooling efficiency and faster cycle times. However, there are some limitations to this design.
The diameter of the cooling channels may be limited by physical constraints. The area of these channels will decrease if they are connected. Another factor to consider is the design requirement of the mold. The diameter of the cooling channel should be as close to the wall of the tool as possible.
Screw speed
The screw speed of a plastic injection molding machine is an important part of the process. While higher speeds produce higher output, they can also increase back pressure, which leads to deterioration of the plastic. Especially for temperature-sensitive plastics, higher speeds can cause cracking and melting. The screw speed should be adjusted according to the application.
The screw speed is controlled by adjusting the back pressure and the volume of the melt in the hopper. This control ensures that the melt is properly compacted. As the screw rotates backward, back pressure is generated on the other end of the cylinder and the screw.
