1, the main danger zone of the injection molding machine
The injection molding machine works quickly under the conditions of strong, high speed, high temperature and high pressure. The injection mechanism is a high pressure, high speed and local high temperature machine.
The main danger zones of the injection molding machine are as follows:
Feeding zone: This area has no screw or other foreign objects due to the rotation of the screw;
Pipe cover area: This area is the raw material heating zone, the temperature is extremely high and there is a danger of electric shock;
Spout area: This area is where the high pressure of the raw material is injected, there is a danger of splashing;
Mold area: This area is a high-speed mold and high-voltage switch action area, which is quite dangerous. In addition, raw materials may also be sprayed from the mold clamping surface, so be careful;
Supporting area: With strong mechanical action, special care is required;
Clamping mechanism: With high-speed and powerful mechanical action, special care is required.
2, the main dangerous and harmful factors
Mechanical risk factor;
Thermal damage factor;
Electrical injury factor;
Harmful substances;
envirnmental factor;
Human unsafe behavioral factors.
3, dangerous and harmful factors in the peripheral equipment of the injection molding machine
Hot air hopper dryer;
Automatic filling machine;
Automatic take-out machine (manipulator);
Plastic crusher.
4, injection molding machinery processing safety accident
Due to the strong working, high-speed, high-temperature and high-pressure characteristics of the injection molding machine, the safety guarantee used in the design is usually high, and most of the accidents are caused by operational errors or violation of operating procedures.
Frequent accidents have the following conditions:
The hand is crushed by the mold;
The hand is crushed by the thimble;
Since the human head is required to be removed or repaired, the arm enters the dangerous area, but since the power of the injection molding machine is not cut off, the motor of the injection molding machine is not turned off, and the device suddenly malfunctions, causing a certain part of the human body to be crushed;
High temperature melt splash;
1. Fire equipment, crushing, bumping, metal scratching, etc. caused by fire equipment.