Ultrasonic pleated cotton energy converter mainly uses high-frequency vibration waves to transmit to two or more material surfaces to be welded. Under pressure, the material surfaces rub against each other to form fusion between molecular layers. It is mainly used for seaming, welding, fusion cutting, embossing, etc. of synthetic fiber fabrics. The processed products have the characteristics of good water tightness, high production efficiency, no needle and thread accessories, smooth and hairless edges on the fusion cut surface, and good hand feeling. Widely used in clothing, toys, food, environmental protection non-woven bags, non-woven processing and other industries.
Ultrasonic transducer is a kind of energy conversion device, its function is to convert the input electrical power into mechanical power (that is, ultrasonic wave) and then transmit it out, and it consumes a small part of the power (less than 10%). Therefore, the most important thing to consider when using an ultrasonic transducer is the matching with the input and output terminals, followed by mechanical installation and matching dimensions. There are many types of ultrasonic machines on the market, and customers must provide accurate and reliable indicators in order to ensure that the transducer products provided by the company can match well with your machine and play the best performance.
① Resonant frequency: f, unit: KHz
The frequency refers to the frequency measured by the transmission line method with a frequency generator, millivolt meter, etc., or the frequency measured with an impedance characteristic analyzer and other similar instruments. Generally known as the small signal frequency. The opposite of it is the on-board frequency, that is, the actual operating frequency measured when the customer connects the transducer to the drive power supply through a cable and is powered on with no load or load. Because the matching circuits of customers are different, the frequency displayed by the same transducer with different driving power is different, and such frequency cannot be used as the basis for ordering.
② Capacitance of transducer: CT, unit: PF
That is, the free capacitance of the transducer can generally be measured by a capacitor bridge at a frequency of 400Hz-1000Hz, and can also be measured by an impedance characteristic analyzer or similar instrument. No matter how simple it is, measuring with a general portable capacitance meter can also meet the requirements.
③ Transducer working mode
Due to different processing methods and requirements, the working methods of transducers can be roughly divided into continuous work (lace machine, pleated cotton machine, CD sleeve machine, zipper machine, metal welding, etc.) and pulse work (such as plastic welding machine), different Different working methods have different requirements on the transducer. Generally speaking, continuous work has almost no pause time, but the working current is not very large, and pulse work is intermittent, with pauses, but the instantaneous current is very large.
④ Transducer type and maximum power
Machine manufacturers may have different regulations on the nominal power of machines with different uses and purposes. In other words, the same transducer used in different machines may have different nominal power. In order to avoid ambiguity, the customer should specify the structural type of the transducer, such as cylindrical type, inverted horn type, etc., as well as the diameter and number of piezoelectric ceramic chips.
⑤ Mounting and matching dimensions
There are mainly horn materials, surface treatment methods, and shapes. The connecting thread between the transducer and the horn, the connecting thread between the horn and the mold, the diameter, thickness, number and position of notches or screw holes at the flange of the horn.
Suzhou Rehow Machinery Co., Ltd. focuses on the production of ultrasonic equipment, which integrates research, design, production, marketing and service. It has a strong technical force, and constantly introduces domestic and foreign technologies, with reliable product quality and stable system. The company adopts imported raw materials and components supporting products, and has formed ultrasonic series products such as slitting machine, embossing machine, ultrasonic lace machine, ultrasonic slitting machine, ultrasonic compound machine, slitting and cross cutting machine, towel slicing machine, rag slicing machine, etc. . Integrity management, excellent equipment, the company has a complete and scientific quality management system, welcome new and old customers to consult and cooperate.
Post time: May-17-2023
