PCBA Tech - Mounter safety regulations and mounter safety signs

Compared with high-risk process equipment in the PCB manufacturing field (for example, high-energy process equipment such as welding, casting and pressure processing, pressure vessels, high-voltage equipment, etc.), the safety risk of the placement machine is relatively small. But if it is considered that the application of the placement machine can ignore safety, then the placement machine may become a high-risk device. The movement system of the placement machine has considerable energy, which increases the risk of personal injury during high-speed movement, not to mention many illegal operations and abnormal operations, which are very likely to cause damage to the machine. Therefore, safe use is still the top priority for placement machine applications.

1. Preparation and safety before use

1. Strict training for operators, the training content includes:

• Carefully study technical materials such as product instruction manuals or operation manuals;

• Understand the working principle of the placement machine;

• Understand the composition and structure of the placement machine;

• Master the correct operation method;

• Master safety measures and precautions;

• Understand maintenance knowledge and general troubleshooting methods.

2. Develop practical and feasible safety operating procedures.

3. Operators must pass the assessment before they can work with the certificate.

2. Safety guidelines for the use of smt placement machines

1. The placement machine is operated by a dedicated person, and non-designated personnel are prohibited from using the machine.

2. Only one operator is allowed to operate one machine. Two or more than two persons are strictly prohibited to operate the machine at the same time. In special circumstances, the supervisor must agree and confirm the operation sequence and signals.

3. Confirm before starting:

• Whether the working air pressure is within the allowable range, and whether the feeder is properly installed;

• Confirm that the machine is not under maintenance;

• Confirm that there are no missing tools or other debris in the Z axis of the X-Y platform;

• Confirm that there is no person or any part of the body within the reach of the machine's normal operation;

• There must be no idle feeders on the Z-axis station.

4. When replacing materials, be sure to confirm that the four "materials, trays, tables, and Z positions" match, and make a record of the refueling.

5. During the operation, do not put your head, hands, or other foreign objects into the safety door.

6. After replacing the material, you must check whether the feeder is properly installed.

7. Check the safety device of the machine:

• Confirm that the safety device has been correctly installed in the specified position, and then operate;

• When disassembling the safety device, be sure to install it in the original position and confirm the normal operation of the machine;

• Correctly paste the warning label on the machine so that it is clearly visible. If peeling or staining occurs, replace it with a new label in time;

• When the safety device fails, never remove the safety device and run the machine;

• If the safety device is removed and operated, it may cause injury or death.

8. Change the parameter settings of the machine through the responsible engineer.

9. When the machine is working, the door of the electrical box cannot be opened.

10. If there is a collision or abnormal noise or other abnormalities during the operation of the machine, the operator should stop the machine in time, notify the relevant personnel to deal with it, and report to the equipment supervisor.

⑪ Keep the environment tidy and equipment clean:

• Use a clean cloth to clean the surface of the machine such as the display screen, operating keyboard and safety cover;

• Use a vacuum cleaner and a clean cloth to clean the fixture platform and track inside the machine. Use tweezers to take out the scattered components on the narrow parts that the vacuum cleaner cannot absorb;

• Use a vacuum cleaner to clean the nozzle platform, and be careful not to bump or damage the nozzle when cleaning;

• Clean the feeder platform with a vacuum cleaner and a clean cloth;

• Regularly clean the tape and waste box in the feeder;

• Empty the waste bin.

3. Inspection and maintenance safety of the placement machine

1. The inspection and maintenance of the placement machine must be carried out by professionals with equipment maintenance qualifications.

2. Equipment maintenance personnel should carefully read the repair manual of this machine and master the skills proficiently.

3. Any overhaul and replacement of parts of the machine must be carried out with the power supply disconnected.

4. When replacing parts, the qualified products originally produced or approved by the equipment supplier must be used.

5. For safety, when teaching or adjusting the machine, keep your hand on the operation panel or the EMG button (emergency stop button) of the teaching or teaching box so that the machine can be stopped at any time.

6. When unplugging the power plug, hold the plug instead of the power cord.

7. In order to prevent accidents caused by sudden start, before repairing the parts with pneumatic devices, first release the compressed air in the air path, and then perform maintenance operations.

8. In order to prevent personal injury, after repairing, adjusting, and replacing parts, make sure that the screws and nuts are tightened as required.

Special note: cutting off the power refers to disconnecting the power plug from the socket after cutting off the main power switch, or disconnecting the power cable from the power supply side.

4. The safe use environment of the placement machine

1. In order to prevent accidents caused by incorrect operation, the working environment should avoid strong electromagnetic interference (for example, high-frequency welding machine and electromagnetic heating device, etc.);

2. The power supply voltage cannot exceed the rated voltage of the machine;

3. The air supply pressure cannot exceed the rated pressure of the machine;

4. For safe use, please use in the following environment:

• Ambient temperature during operation +10 degree Celsius～+35 degree Celsius;

• The relative temperature during operation is below 50% (35 degree Celsius) and below 90% (20 degree Celsius).

Two, smt placement machine safety mark

In order to ensure the safe operation of equipment, one of the common measures in the industry is to set up various safety signs on the machine and on the production site to warn or remind operators and other workers. These safety signs are both industry-unified and industry-specific. Understanding and applying them correctly is of great significance for ensuring safety.

1. Safety color

In order to be eye-catching, various safety signs set on the machine and on the production site usually use different colors to indicate different meanings. The four colors of red, blue, yellow and green are internationally unified "safe color" standards.

2. Common safety tips for placement machines

In addition to the color, there are text prompts. Since most of the mainstream placement machines in China are imported, it is necessary to understand the meaning of Chinese and English.

3. Commonly used and combined icons

Because the graphics are easy to recognize, eye-catching and easy to remember, they are widely used in safety warnings, and all walks of life have their own special safety graphics.

The safety-related text prompts are often combined with common icons and specific text terms to make them more clear and eye-catching.

4. The safety signs of the global placement machine

The placement machines produced by different countries and regions and different suppliers, under the premise of complying with international uniform regulations and conventions, set up the safety warning symbols of the company's products according to the characteristics and experience of their own smt products.