Bionic fake bait plastic welding machine introduction
The
ultrasonic plastic welding machine is widely used in fishing tackle industry, mainly used for welding plastic fake bait, luminous rod, float ball, float and other products. Because of its simple operation, cost-effective by the fishing tackle industry consumers welcome.
Working principle of fake bait welding machine
The fake bait welding machine transmits the ultrasonic energy to the welding area through the upper welding parts. Because the welding area is the junction of two welding areas where the acoustic resistance is large, local high temperature will be generated. And because of the poor thermal conductivity of plastic, it can not be timely distributed, gathered in the welding area, resulting in the rapid melting of the two plastic contact surface, plus a certain pressure, so that the fusion into one. When the ultrasonic wave stops, let the pressure continue, there is some time to hold the pressure, so that it solidifies, so as to form a strong molecular chain, to achieve the purpose of welding, welding strength can be close to the strength of the raw material body.
Ultrasonic welding works by combining two parts, one vibrating at the top and one resting at the bottom, and the friction heat at the contact surface melts the plastic on the surface. Therefore, it is very important to reduce the initial friction contact surface and concentrate the ultrasonic energy to improve the welding efficiency and quality. Therefore, one of the welding parts (usually the above parts) must be made a convex edge on the welded interface, known as the "energy guide edge". If the position of the two welds is relatively strict, it is also necessary to consider adding a design positioning device. Guiding edge and positioning device should be considered when designing injection mold.