Improving Punch Press Productivity with Time Based Brake Monitoring

Employee working a punch press utilizing safety equipment including time based brake monitoring and e-stops.

One of the most effective ways to achieve maximum productivity and safety is through the implementation of time based brake monitoring systems. These systems not only enhance operational efficiency but also play a critical role in maintaining the safety of the operators and the equipment. In this blog post, we will delve into the importance of time based brake monitoring, how it works, and the benefits it brings to punch press operations.

What is Time Based Brake Monitoring?

Time based brake monitoring refers to the process of measuring the stopping time of a punch press brake in milliseconds. This monitoring is crucial in ensuring that the press stops within a safe and acceptable time frame, thereby reducing the risk of accidents and equipment damage. The time based brake monitor uses a high-resolution rotary encoder and controller to precisely measure and display the brake stopping time, as well as the RPM of the press.

One of the advanced time based brake monitors available is the BM-1600. This device utilizes a rotary encoder attached to the punch press crankshaft, ensuring a 1:1 ratio for accurate measurements. The brake stopping time is displayed on an LED screen, making it easy for operators to monitor and respond to any issues promptly.

Why Time Based Brake Monitoring is Essential for Punch Press Safety

Ensuring that the brake system functions within the prescribed time limits is critical for maintaining operator safety. The Occupational Safety and Health Administration (OSHA) and the American National Standards Institute (ANSI) have stringent guidelines for punch press operations, and time based brake monitoring systems help in meeting these standards. Specifically, OSHA 1910.217 and ANSI B11.1-2009 standards outline the requirements for control reliability, which includes accurate brake monitoring.

Time based brake monitors like the BM-1600 exceed these standards by providing dual logic power supplies, heavy-duty resolver and cable, and system diagnostics that are easy to understand and use. These features ensure that the brake system is not only reliable but also failsafe, significantly reducing the risk of accidents due to brake failure.

Enhancing Punch Press Productivity with Accurate Brake Monitoring

In addition to improving safety, time based brake monitoring can also enhance the productivity of punch press operations. Accurate brake monitoring allows for precise control of the press, reducing the likelihood of downtime caused by brake-related issues. When the brake stopping time is consistently monitored and maintained within safe limits, the press can operate at optimal speeds without compromising safety.

The BM-1600, for example, displays the machine’s RPM during the cycle, allowing operators to monitor the speed and adjust it as necessary to maintain productivity. By ensuring that the brake system is functioning correctly, operators can avoid unplanned stoppages, leading to more consistent production cycles and higher output.

Control Reliable Design in Time Based Brake Monitoring Systems

A control reliable system is designed to ensure that any single component failure does not lead to a dangerous situation. In the context of punch press operations, this means that even if a component of the brake monitoring system fails, the press will stop in a safe and controlled manner. This is achieved through features such as dual logic power supplies and force-guided relays.

Time based brake monitoring systems like the PressCommander and PressCam 8 incorporate these control reliable designs, offering enhanced safety and reliability. The dual logic power supplies ensure that if one power supply fails, the other can take over, preventing any loss of control. Force-guided relays, on the other hand, ensure that any major faults, such as E-Stop or motion faults, are handled safely.

Advanced Features of Time Based Brake Monitors

Modern time based brake monitors, such as the PressCam 8 and PressCam 8 Junior, offer a range of advanced features that further enhance punch press control and safety. These features include:

  • Programmable Limit Switch (PLS): The PLS allows for precise control over the press operations, ensuring that the press only operates within the set parameters. This prevents accidental overrun and ensures consistent production quality.
  • Built-In Motion Detector and Drift Fault Monitoring: These features monitor the movement of the press and detect any irregularities, such as drift or unexpected motion, which could indicate a fault in the brake system. By detecting these issues early, the system can take corrective action before a more significant problem arises.
  • Variable Speed Compensation: As the press operates at different speeds, the time based brake monitor can adjust the stopping time accordingly. This ensures that the press stops within the safe time limits, regardless of the operating speed, enhancing both safety and productivity.
  • Multiple Counters and Job Memory: These features allow operators to track production metrics such as stroke count, batch count, and part quality. With the ability to store up to 100 jobs in memory, operators can quickly switch between different production runs without reprogramming the system, saving time and reducing the risk of errors.

The Role of Time Based Brake Monitoring in Meeting Safety Standards

Meeting safety standards is not just about compliance; it is also about creating a safe working environment for operators. Time based brake monitoring systems are a crucial part of this process, as they ensure that the press operates within safe parameters at all times. By accurately measuring the brake stopping time, these systems help prevent accidents caused by brake failure or delayed stopping.

Furthermore, the control reliable design of modern brake monitoring systems ensures that any potential faults are handled safely. This not only protects the operators but also the equipment, reducing the risk of costly damage and downtime.

How Time Based Brake Monitoring Improves Overall Equipment Efficiency (OEE)

Overall Equipment Efficiency (OEE) is a key metric for measuring the productivity and efficiency of manufacturing operations. Time based brake monitoring systems contribute to improved OEE by ensuring that the press operates at optimal speeds and with minimal downtime.

By continuously monitoring the brake stopping time and other critical parameters, these systems help identify potential issues before they lead to unplanned stoppages. This proactive approach to maintenance and safety ensures that the press remains in good working condition, allowing for consistent and efficient production.

The ability to store job memory and use programmable limit switches also contributes to improved OEE, as operators can quickly switch between different jobs without needing to reconfigure the press. This reduces setup time and increases the overall efficiency of the production process.

Choosing the Right Time Based Brake Monitoring System for Your Punch Press

When selecting a time based brake monitoring system for your punch press, it is essential to consider the specific needs of your operation. Factors such as the size of your press, the complexity of your production processes, and your safety requirements will all play a role in determining the best system for your needs.

For example, if you require a system that can handle multiple jobs with different parameters, the PressCam 8 or PressCam 8 Junior may be the best option. These systems offer extensive job memory and programmable limit switches, allowing for greater flexibility in your production processes.

On the other hand, if you need a system that provides real-time monitoring and diagnostics, the BM-1600 may be the ideal choice. With its high-resolution rotary encoder and LED display, this system offers precise measurements and easy-to-read data, allowing for quick and informed decision-making.

 

Time based brake monitoring is a critical component of punch press operations, contributing to both safety and productivity. By accurately measuring brake stopping time and ensuring that the press operates within safe parameters, these systems help prevent accidents and reduce downtime. Modern time based brake monitors, such as the BM-1600, PressCommander, and PressCam 8, offer advanced features that enhance control reliability and improve Overall Equipment Efficiency (OEE). By choosing the right time based brake monitoring system for your needs, you can maximize the efficiency and safety of your punch press operations, ensuring a productive and safe working environment for your operators.