The principle of the safety light curtain through the infrared light-emitting diode to the receiver to emit multiple beams of light to form a curtain wall of infrared light, if the human body partially through the light curtain, and blocked at least one of the beams of light, through the internal control circuit, the monitored machine tools such as punching machines, presses and so on, to send out an emergency brake signal.

Light curtains have a very wide range of applications, for example, in the need to constantly feed and retrieve material stamping equipment, if the installation of contact safety guards, the operator needs to frequently open and close the doors, which not only increases the workload of the operator, but also reduces the production efficiency. In this case, the use of light grids and light curtains is the best choice. When the operator feeds and picks up materials, as long as any part of the body to block the light, it will cause the machine to enter a safe state without bringing harm to the operator.

The density of the beam determines how large a body part can pass through the light curtain before being detected. In accordance with ergonomic data, the adult finger diameter should be not less than 14mm, palm thickness of not less than 30mm, wrist diameter of not less than 40mm, for example: if the use of light curtains of the optical axis spacing is 40mm, the optical axis diameter is 20mm, its resolution is 40 + 20 = 60mm, then the hand value, palm, wrist and arm may be passed through the light curtains and will not be detected. Therefore, if you want to get a higher level of security, you need to use a higher resolution of the light curtain, Weiye safety light curtain light curtain products are suitable for assembly lines, elevators, paper-cutting machinery, leather machinery, woodworking machinery, mechanical presses, hydraulic presses, sub-film machines, shearing machines, bending machines, injection molding machines, industrial manipulators, packaging equipment, three-dimensional garages, industrial automation equipment, prohibited zones, hazardous areas, such as the safety detection, can reliably protect the object safety. It can reliably protect the safety of objects.