The traditional sewing machine sews two pieces of cloth together by driving the thread through the needle. In the process of threading the needle, not only the cloth is punctured but also there is no bond between the cloth and the cloth, but they are tied together by a thin thread. In this way, the cloth is easy to be pulled and the thread is easy to break. Thermoplastic cloth can be sewed together by hot air welding, and needles and threads are not needed, but the welding temperature is difficult to control and the welding speed is slow.
Ultrasonic seamless suture system can sew most thermoplastic fabrics. Compared with ordinary needle and thread suture, ultrasonic suture does not need needle and thread, has high suture strength, good sealing performance, and fast suture speed. And the ultrasonic seamless sewing system also completely solves the problem that the movement direction of the ultrasonic welding head is inconsistent with the movement direction of the cloth, and the problem of asynchrony will replace ordinary sewing machines to a large extent.
Introduction of seamless sewing equipment
The ultrasonic seamless sewing system is composed of 35k ultrasonic transducer, horn (fixed function), disc-shaped welding head and supporting special CNC power supply. The ultrasonic numerical control power supply converts the mains power into 35k high-frequency high-voltage alternating current and supplies it to the ultrasonic transducer. The ultrasonic transducer converts electrical energy into mechanical energy (ultrasonic wave), and the transducer generates vibration amplitude when it does telescopic movement in the longitudinal direction, and then transmits it to the disc-shaped welding head through the horn. So that the disc-shaped welding head is welded, and it is a complete ultrasonic cutting and sewing machine equipped with a frame, a pressure wheel and auxiliary structure and control components.
Features of seamless suture equipment
The core technology of the ultrasonic seamless sewing system is to use the disc-shaped welding head for seam welding, which skillfully converts the longitudinal vibration of the transducer into the radial vibration of the disc-shaped welding head radiating 360° outward along the diameter direction. And different from the traditional lace machine, the traditional lace machine is generally composed of a flat tool head and a roller with a pattern. Since the tool head is stationary, it is easy to cause deformation and wrinkling of fabrics such as cloth during work, while seam welding Type seamless sewing equipment uses two discs to vibrate to sew fabrics, which solves this problem well. This not only greatly reduces the volume of the vibration system itself, but also greatly reduces the installation size, the whole machine is beautiful, the volume is reduced, and the weight is also greatly reduced.
Advantages of seamless stitching
High stability: The rotation of the welding wheel and the pressure wheel is completely synchronized during ultrasonic seamless sewing, there is no difference in speed and angle, and it will not cause stretching, twisting or deformation of the fabric, and the precision is extremely high. Due to the thermal fusion effect, no need to use needles and threads, the product is more waterproof, lighter and easier to fold.
Synchronous welding and cutting: Ultrasonic seamless sewing equipment is not only suitable for continuous sewing, but also can cut textiles while welding, and realize automatic edge sealing.
No heat radiation: During ultrasonic seaming, the energy penetrates the material layer for welding, and there is no heat radiation. During the continuous seaming process, the heat will not be transferred to the product, which is especially beneficial for the packaging of heat-sensitive products.
Controllable welding seam: The cloth is pulled by the welding wheel and the pressure wheel, and passes through it, and the cloth is welded by ultrasonic waves. The size of the weld seam and embossing can be changed by replacing the pressure wheel, which is more flexible and convenient to use.
Wide range of applications: All thermoplastic (softened after heating) cloth, special tapes, films can be welded with ultrasonic seamless sewing equipment, and the rollers are made of hardened steel to extend the service life.