The operation of any machinery poses certain risks to the operator. To keep operators safe, it is essential that they understand and follow the guidelines for feeding and ejection methods. This article will provide an overview of three basic types of feeding and ejection methods, their functions, and how they can be used to reduce the risk of injury when operating machinery. Additionally, the article will provide safety tips and guidelines to help operators avoid hazards and keep themselves safe while operating machinery.
Using a machine safely to avoid a potential injury entails many factors. There are many different types of machine safeguards. The type of guard that has to be used depends on the machine and the hazards it can pose.
Before using any equipment, the operator should be trained to use the safeguards, where they are located, the kind of protection they provide, and which hazards they protect against. Operators need to know how and under what circumstances guards can be removed, and they should be able to identify when guards are damaged, missed, or inadequate.
Feeding and Ejection Methods
Many feeding and ejection methods do not require the operator to place his or her hands in the danger area. In some cases, no operator involvement is necessary after the machine is set up.
In other situations, operators can manually feed the stock with the assistance of a feeding mechanism. Properly designed ejection methods do not require operator involvement after the machine starts functioning. Some feeding and ejection methods may even create hazards themselves. For instance, a robot may eliminate the need for an operator to be near the machine but may create a new hazard by moving its arm.
Using feeding and ejection methods does not eliminate the need for guards and devices. Guards and devices must be used wherever they are necessary and possible to protect from exposure to hazards.
1. Automatic Feed Systems
Automatic feeds reduce the operator’s exposure during the work process and sometimes do not require any effort by the operator after the machine is set up and running.
2. Semi-Automatic Feeding Systems
With semi-automatic feeding as in the case of a power press, the operator uses a mechanism to place the piece being processed under the ram at each stroke. The operator does not need to reach into the danger area, which is completely enclosed.
3. Semi-Automatic Ejection Systems
The figure on the right shows a semi-automatic ejection mechanism used on a power press. When the plunger is withdrawn from the die area, the ejector leg, which is mechanically coupled to the plunger, kicks the completed work out. The operator does not need to reach into the danger area, which is completely enclosed.
In conclusion, there are three basic feeding and ejection methods – automatic feed systems, semi-automatic feed systems, and semi-automatic ejection systems. These methods help reduce the exposure of operators in hazardous situations by eliminating their need to put their hands in the danger area. However, it is essential to note that these methods do not eliminate the need for safeguards and devices such as guards, interlocks, and emergency stops. Properly trained operators should always be aware of potential hazards and use appropriate safety precautions when using the equipment.
In addition to learning the proper operation of a machine and its safeguards, operators should familiarize themselves with the local safety regulations and standards. Operator involvement is essential to ensure the safe operation of a machine and avoid any potential injury. Operators can use machinery safely and efficiently by understanding the basics of feeding and ejection methods and other applicable safety precautions.
By following these guidelines, operators can create a safe and productive work environment for themselves and their co-workers.