Dust material quantity detection device for dust collection device of sewing machine

Abstract

The invention provides a dust material quantity detection device for a dust collection device of a sewing machine. The dust material quantity detection device at least comprises a processor (5), an ultrasonic detection unit (6) and an alarming unit (7), the processor (5) controls air suction action of an air suction motor (4) and detection action of the ultrasonic detection unit (6) according to a speed control signal, and the ultrasonic detection unit (6)is controlled by the processor (5) to detect dust material quantity in a dust collection bucket (2) by transmitting ultrasonic waves into the dust collection bucket (2). Dust collection work and detection work are done at different times according to the speed control signal of a pedal speed controller, and the rotating speed of the air suction motor is stopped or lowered when the sewing machine does not work, so that energy sources can be effectively saved, energy consumption can be lowered, automatic stopping and alarming can be realized after the dust material quantity reaches an extreme limit, and the motor can be protected effectively. Multiple working frequency points are introduced, working frequency is changed according to actual circumstances, outside interference is eliminated, and reliability is guaranteed.

Description

technical field [0001] The invention relates to a detection field, in particular to a dust amount detection device used in a dust collection device of a sewing machine. Background technique [0002] With the continuous development of industry, the intelligence of sewing machines is also getting higher and higher. At the same time, a lot of sewing scraps will be produced during sewing, and these wastes are generally dropped and piled up on the ground, which is inconvenient to collect and organize. At the same time, a lot of dust such as thread ends and wool will be produced and scattered into the air. After the human body inhales such dust, it will cause harm to the human body. [0003] Therefore collecting these waste and dust is more and more important to modern intelligent sewing machines. Therefore, there are many suction and dust collection devices on the market. The dust collection device is one of the most important devices in the sewing machine. It is used to collect...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a dust amount detection device for a sewing machine dust collection device, which is used to solve the lack of detection of dust amount in the sewing machine dust collection device in the prior art, It is easy to reduce the dust collection effect and cause damage to the device, etc.

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