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The high-speed door consists of a door frame system, a door curtain system, a drive motor, a control system, and a control system.
The main material of the frame system is carbon steel plate or aluminum alloy.
The door curtain system is mainly composed of fabric or aluminum alloy profiles. The drive motor system mainly consists of brake pads, motors and reducers.
The most commonly used control system is an integrated circuit board consisting of a frequency converter/encoder or a self-contained module. Most domestic door companies use frequency converters/encoders.
The safety system is mainly an infrared electric eye switch, safety air pressure sensor (some companies with high mechanical precision and high stability of the control system use safety contact tape) or light curtain system. The light curtain system should be the highest level of safety protection. Lifting speed .It usually takes about seconds from bottom to top (the speed is twice that of electric rolling shutters). Vehicles and pedestrians do not need to wait and do not constitute an obstacle. At higher speeds,
there are many ways to trigger signals for opening the door, such as manual buttons and radar sensors. , infrared photoelectric induction, geomagnetic induction, remote control, etc.
Door cloth materials generally use or membrane materials as curtain fabrics. In particular, membrane materials have better anti-aging properties, are not easy to fade and have self-cleaning functions. They are very suitable for fast rolling doors. The origin is preferably German or French. thickness. .Thick door pieces will change the entire product structure. Colors include orange, yellow, blue, silver, transparent mesh, black, etc. Orange is the first choice because orange is very eye-catching, stimulates the senses of insects, and has a certain insect-proof function.
The drive motor for fast rolling doors uses brake reduction motors, which require fast braking and low noise. Generally, the braking motors sold on the market either have poor braking effect or have loud braking noise, and are not suitable for use in fast rolling doors. The speed ratio is more appropriate.
There is also a new type of industrial fast door motor, called the industrial fast door dedicated servo. This is a brand new control method. It does not need to rely on the brake when running to stop, and the noise is further reduced.
During the working process, the door-opening sensor provides a trigger signal to the control system. The control system sends instructions to the frequency converter according to the current position of the fast rolling door. It starts the drive motor to make the door curtain rise quickly. After vehicles and pedestrians pass through, the door curtain automatically lowers and closes the passage. Until the next door opening signal is turned on again. As the name suggests, the fast rolling door lifts and lowers very quickly and cannot be started and stopped directly like the steel rolling door. Generally, a frequency converter is required to control the speed of the motor. The faster when rising, the better. When it is almost in place (left and right), there needs to be a deceleration and buffering stop process to prevent hitting the track, preventing people from being pinched, and reducing noise. This is also a standard for measuring the performance of fast rolling doors.
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