Patent ID: 6588644
Filing Date: 2003-07-08
Classification: B29C

Abstract:
In a vibration welder having a movable platen driven into a vibration mode by magnets actuated from a power supply and wherein a controller is used to regulate the sequence of operations during a vibration welding operation of first and second work pieces, the improvement comprising:an energy measuring device for producing an energy signal indicative of the energy imparted to the work pieces during a vibration welding thereof, wherein the energy measuring device includes a watt meter coupled to one of the magnets employed to induce vibration welding of the work-pieces to produce a signal indicative of the power delivered to said one magnet; an energy setpoint signal generator for pre-selecting a desired amount of energy that is to be imparted to the work pieces; and an energy controller responsive to the energy setpoint signal generator and the energy signal for control of the vibration welding of the work pieces.