Broken-bar alarm device
A technology of alarm device and broken strip, applied in the direction of alarm, instrument, etc., can solve the problems of material loss, poor lighting at the production site, difficult to find and so on, and achieve the effect of reducing loss
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[0007] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.
[0008] Such as figure 1 As shown, a broken bar alarm device is composed of an infrared generating device 1, an infrared receiving device 2, a photoelectric conversion device 3, and an alarm circuit 4. The infrared generating device 1 is connected to the infrared receiving device 2, and through the photoelectric conversion device 3 is connected to the alarm circuit 4, and the infrared emitting device is arranged under the extruder 6, and the extruder 6 is connected to the water tank 7 through the plastic strip 5. Before stable production, cut off the power supply of the alarm circuit, and the alarm circuit will not generate sound and light alarm signals. After stable production, turn on the power of the alarm device. At this time, the infrared generating de...
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