Get An Overview Of The Motion Of An Ultrasonic Welder's Horn
The ultrasonic welding machine consists of three parts: power supply, ultrasonic transducer system and ultrasonic generator. And each welding machine also needs a mechanical system to control the accuracy of the welding head movement, whether it is the lifting of the welding head of the aluminum foil ultrasonic metal welding machine or the problem of the rapid lateral movement of the ultrasonic plastic welding machine. problems that need to be considered in the operation of the machine.
Let's take a look at the main aspects of the welding head movement of the ultrasonic welding machine. The movement of the welding head of the ultrasonic welding machine includes the lifting movement, the lateral movement, the movement of the welding wheel and the rotation movement. Let's first look at the lifting movement. During the welding process of the aluminum foil ultrasonic metal welding machine, after the aluminum foil is ultrasonically rolled along the width, the welding head should be raised to a certain height.
First, make the welding wheel no longer exert pressure on the welding plate; second, raise the welding head so that the low point of the welding wheel exceeds the surface of the guide roller of the coiler, so as to realize the reversal of the welding head.
The lateral movement of the ultrasonic welding machine is to meet the requirements of the welding speed in the range of 0.7-2.7 m/min. The lateral movement speed is adjusted by the mechanical transmission of the linear bearing seat and the nut driven by the main chain. In order to ensure the mechanical accuracy of the lateral movement of the welded joint, the second-generation ultrasonic plastic welding machine commonly used in my country adopts the method of designing the bearing as a double guide rod, which has high precision. , which matches the straight line.
The movement of the welding wheel is through the meshing of a group of gears of the welding head and the fixed rack, which converts the linear motion of the welding head into the synchronous rotation of the welding wheel. The rotary motion is a rolling spline shaft, driven by a swing cylinder, and connected to the welding head for rotation to realize the rotation of the welding head.
The four kinds of welding head movements of ultrasonic welding directly affect the welding quality. By understanding the four different welding movements, we can study the corresponding improvement plan, such as the bearing improvement of the second-generation ultrasonic plastic welding machine. It is important to develop a good mechanical control system of the welding head to control the welding head movement of different welding machines such as ultrasonic metal welding machines. The reliable and correct adjustment method of this mechanical system of the ultrasonic welding machine is an important factor to ensure the quality of the welding head.
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