Zhejiang long Ultrasonic Technology Co. Ltd.   

        used for cloth stitching and cutting ultrasonic rotary vibration technology results in the world, is the latest development of the. The latest research results of our company closely track foreign, took the lead in the domestic development of ultrasonic seamless sewing machine. This is an ultrasonic seamless sewing machine (also called the ultrasonic radial sewing machine) is the core part of, the original products of our company. It solve the inherent problems existing in the original ultrasonic longitudinal vibration technology, namely the movement direction of movement direction of ultrasonic horn and the cloth is not consistent, synchronization. Ultrasonic cloth stitching accuracy is greatly improved, so that the ultrasonic technology is widely applied to clothing suture fields possible. Ultrasonic seamless sewing with high welding speed, high strength, welding beautiful, good sealing characteristics, low energy consumption, simple operation, is the development direction of sewing machine.
        application field of ultrasonic seamless sewing machine is very wide, almost all thermoplastic (i.e. heating will soften) cloth can be applied. And compared with ordinary ultrasonic sewing suture, suture without suturing needle and thread, high strength, good sealing property. It is possible, to a great extent, instead of the ordinary sewing machine.   we are willing to work together with the machine manufacturers, in order to improve the level of China's industrial sewing machine to make our contribution.
      the traditional sewing machine is through the needle with a line will be two pieces of cloth sewn together, despite all the advantages, but also has a great disadvantage. In act as a go-between process, the cloth is cut, and between the cloth and cloth and not binding, just a thread tying them together. This cloth is easy to be broken, line is easy to break. For the thermoplastic cloth, hot air welding or other direct heating mode, can be two pieces of cloth sewn together, without sewing. But the drawback is that the welding temperature is not easy to control, the welding speed is slow.
        ultrasonic application in clothing industry has a history of twenty years, field of application are cutting fabric, lace clothing cutting, stitching, adhesive, beaded piece etc.. All these ultrasonic equipment have a common characteristic, it is the use of ultrasonic longitudinal vibration. The ultrasonic longitudinal vibration welding system has two big weaknesses: one is the large volume, but also to be installed perpendicular to the sewing machine panel, resulting in large volume, heavy. The second is doing the cutting and welding, ultrasonic welding head movement direction of movement direction and the cloth is not consistent, not synchronous, cause fabric tensile or wrinkled, it will seriously affect the fabric cutting and welding precision. Therefore, the ultrasonic longitudinal vibration system is generally dominated by the cloth cutting, rarely used for cloth suture (i.e. welding).
        ultrasonic seamless sewing technology skillfully used the principle of ultrasonic bending vibration, high frequency ultrasonic longitudinal vibration will be sub length, converted into bending vibrator diameter. The direction of rotation and vibration is 90o, the longitudinal vibration into radial vibration disk head, installation mode from vertical cloth installation into parallel cloth installation. This not only greatly reduces the volume of the vibration system itself, more make the installation size is greatly reduced, the appearance, volume is reduced, the weight is greatly reduced. Even more gratifying is the output end of the disc, the bending vibration system is a transverse ultrasonic vibration, the welding head around its axis of rotation. Only the pressure wheel pressure in the welding head on the cylindrical surface of the horn, and the synchronous rotating. The processed fabric is the horn and the pressure wheel traction, and through between them. Cloth heating under the action of ultrasonic wave melts, two or more layers of cloth are adhered together, so as to achieve the purpose of welding material. It has the advantages of high precision, fast welding speed, weld beautiful, low energy consumption, simple operation. It can achieve the purpose of suture. Here the horn and the pressing wheel rotation is completely synchronous and same direction, there is no speed difference and angle difference, will not cause the fabric tensile, distortion or deformation, high precision. Cloth heating under the action of ultrasonic wave melts, two or more layers of cloth are adhered together, so as to achieve the purpose of suture material. If the pressure into the cutter wheel rotation, constitute a perfect cutting machine, in the cloth cutting at the same time, and the cutting edge of heat sealing. It has the welding and cutting speed, high precision, weld beautiful, small volume, low energy consumption, no noise and so on. On behalf of the development direction of the ultrasonic cutting sewing machine.
        because of ultrasonic seamless sewing machine core has many advantages, it determines the calculation of ultrasonic vibration system, the design of material selection, structure design, manufacture, test various aspects of adjusting etc have very high technology. So far, not domestic except me outside the company, is not a real R & D units engaged in this product.
      seamless sewing machine core is composed of 35K ultrasonic longitudinal vibration transducer, the first section of horn, disc type welding head, section second horn, supporting a special driving power form. It is the working principle of ultrasonic drive power will be commercial power into 35K high frequency high voltage alternating current, lost to the ultrasonic transducer. The ultrasonic transducer is in fact is equivalent to an energy converter, it will be the input of electrical energy into mechanical energy, i.e. ultrasonic. In the form of longitudinal transducer in the back and forth telescopic movement. Telescopic motion frequency equal to the frequency of alternating current power supply, to drive out of the 35K, displacement expansion in a few microns. Horn is a fixed the ultrasonic vibration system, two is the output amplitude transducer amplifier, passed to the head. Further amplification of amplitude horn on the one hand, on the other hand, the longitudinal stretching vibration into radial extension vibration. Machine manufacturers structure and control only with frame, the pressing wheel and auxiliary parts, is a complete ultrasonic cutting sewing machine.