Energy controller for vibration welder
AssigneeSoncis & Materials Inc.
InventorWilliam P. Simon
Life of this patent
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Abstract
An energy controller is described for a vibration welder wherein the energy imparted into work-pieces being vibration welded is derived and compared with an energy set point to control the vibration welding operation. After a vibration welding operation has encountered the energy set point the welding operation is stopped and the quality of a weld derived from a comparison with another parameter associated with the vibration welding. The other parameter can be the amount of movement of one of the work-pieces during vibration welding or the time involved to inject the energy into the work-pieces to achieve the vibration weld.
Claims6
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.
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 parts, the improvement comprising:
- a power sensor effectively coupled to the power supply to generate a power signal indicative of the power being drawn by the magnets while the parts are being vibration welded, wherein the power sensor includes a watt meter coupled to a magnet employed to induce vibration welding of the work-pieces;
- an energy measuring device responsive to the power signal for producing an energy signal indicative of the energy imparted to the parts during a vibration welding thereof;
- an energy set point signal generator for producing a set point signal indicative of a pre-selected desired amount of energy that is to be imparted to the parts;
- and
- an energy controller responsive to the energy set point signal and the energy signal for control of the vibration welding of the parts.
Dependencies are inferred from the claim text.