Elimination of Erroneous Detections of Wheat Flour Spouting Inside Piping

When wheat flour is dropped into shoot piping, the piping may get clogged with flour powder around the front of the part for switching to pneumatic conveyance (pneumatic shoe), and "spouting" may occur inside. To detect this spouting, a proximity switch has been installed conventionally on the external side surface of an acrylic pipe. However, adherence of flour powder on the internal surface of piping due to static electricity is often likely to cause an erroneous detection despite the piping not actually being clogged. Because of this, a "momentary stop" continuously occurred in lines.

TSUKASA's Inspection Spout with Sensor is the integration of an acrylic pipe and a sensor. With the adoption of a whole circumference-type electrode, piping clogging can be reliably detected. In addition, the "sensitivity volume" can be adjusted for an alarm to be issued, according to the customer's usage.

The "momentary stops" caused by erroneous detection of piping clogging have been eliminated, leading to a reduction in production losses on the entire line.

A built-in failsafe switch is provided to prevent secondary damage, such as power failures due to unexpected accidents. It also contributes to risk management by enabling replacement of parts only without relying on control software.

The Inspection Spout with Sensor also allows contactless photocoupler connections. It is also a measure against chattering and can be easily used in routes where there is a lot of on/off switching. Of course, it is also possible to switch to a contact-type relay connection with a single touch.