Safety Light Curtain Protects the Surroundings of Hydraulic Presses
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- Issue Time
- Aug 17,2024
Summary
Safety light curtains are photoelectric sensors comprising multiple infrared transmitters and receivers, typically installed around industrial equipment like hydraulic presses. These systems continuously emit infrared beams to create a "light grid" around the working area. If an object or person enters this protected area, the light grid is disrupted, and the system instantly sends a signal to halt the hydraulic press, preventing accidents.
Hydraulic Press Safety Curtains to Prevent Dangers at the Operation Point
Machine Guarding for Hydraulic Press Point of Operation Guarding against hazards at the hydraulic press point of operation
The point of operation of a hydraulic press is where the work is performed. Guarding the point of operation is critical to protecting personnel from accidents or injuries and preventing damage to equipment.
In many point of operation applications, operators must work very close to hazards. In these applications, hard guards may not be practical because they reduce operator ergonomics and productivity. Optical sensing technology, such as safety light curtains, protects the point of operation while allowing the operator to interact more seamlessly with the machine.
How Safety Light Curtains Protect the Operating Points of Hydraulic Presses？
The safety light curtain creates an invisible infrared protection barrier to form a "light wall" around the working point of the hydraulic press (such as the mold area), achieving real-time monitoring and rapid response to the operating area, thereby effectively ensuring the safety of personnel. The specific protection methods are as follows:
Build an infrared protection area
Install a light curtain in front of the hydraulic press operation area to form an infrared beam area. Once a hand, finger or other object enters this area and blocks the beam, the light curtain immediately identifies it as an intrusion.
Quickly cut off hydraulic action
When a human body is detected entering the danger zone, the light curtain will instantly send a stop signal to the control system to cut off the action of the hydraulic system, prevent the machine from continuing to press down, and avoid personal injury.
Non-contact protection
The safety light curtain is a non-contact protection that will not affect the normal operation and vision of personnel, and will not hinder material loading and unloading, improving the convenience and efficiency of operation.
High resolution and response speed
The high-resolution light curtain can accurately identify the entry area of fingers, palms, etc., and the response time is usually less than 20 milliseconds, which can quickly stop the machine from running before danger occurs.
Adapt to a variety of hydraulic press processes
The safety light curtain can be used in manual, automatic, single or continuous stamping modes, and can be flexibly configured to adapt to various hydraulic press workflows.
Precautions for the Application of Safety Light Curtains in Hydraulic Presses
Blind Zones——End-to-End Sensing Ensures No Gaps in Protection
When using safety light curtains in hydraulic press applications, it is important to ensure that there are no gaps where a finger or hand can bypass the protective beam without being detected.
Many safety light curtains now feature end-to-end sensing, meaning that the protective beam extends the entire length of the safety light curtain. If blind spots or other gaps exist, they must be accounted for when designing the safety system. Risk assessment is an important first step in any safety project to ensure such issues are considered and addressed prior to implementation.
Space Constraints——Ergonomic Safety Even in the Tightest Spaces
Compared to doors and other hard guards, optical safety devices often save space and improve operator ergonomics, and safety light curtains promote seamless operator-machine interaction, which helps improve productivity.
Space is often limited near the point of operation of hydraulic presses. While safety light curtains are available in a wide range of guard heights, they can also be very compact and low-profile, allowing them to be used in even the tightest spaces,
Recommended Safety Light Curtain
Resolution ratio：10mm，20mm，30mm，40mm
Check the accuracy：18mm，28mm，38mm，40mm
Number of beams：04、06、08、10.....72
Response time：≤15ms
Housing material：Metal
Metal shell：Aluminium
Protection grade：IP65
DADISICK's Hot Selling Products
Beam spacing: 2.5mm
Number of optical axes: 280
Protection height: 697.5mm
Safety Curtain outputs (OSSD):2 PNP
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