Continuous loop ribbon welding system
OwnerPaul E. Beckinginventor
Life of this patent
Estimating the term…
Abstract
There is provided a method and apparatus for adjoining two ends of a length of impact printer ribbon to form a continuous loop of ribbon. A welding fixture, including a welding anvil, ironing anvil and ultrasonic horn are provided to join the ribbon ends. Tensioning slides are provided to grip the ribbon ends and tension the ribbon during welding operations. A microprocessor controls a series of pistons, switches and solenoids to control the welding sequence.
Claims14
Apparatus for adjoining two segments of a ribbon made of a fusible material, comprising
- means for securing the two ribbon segments in overlapping position,
- means for applying tension to the overlapping portion of at least one ribbon segment after it is secured by the securing means,
- means for selecting the optimum tension for the ribbon,
- means for adjusting the tension applying means to apply the optimum tension, and
- means for fusing the two ribbon segments together within the overlapped portions.
Apparatus for adjoining two ends of a length of fabric printer ribbon to form a continuous loop of printer ribbon, comprising:
- a plate having first and second sides, a front portion, and a rear portion, the second side including front and rear tensioning slots formed therein;
- first and second means for positioning the two ribbon ends in an x-pattern;
- first and second means for clamping a first ribbon end within said first positioning means, said first clamping means being affixed to said plate;
- third and fourth means for clamping a second ribbon end within said second positioning means, said third clamping means being affixed to said plate;
- means for tensioning said first ribbon end, said first tensioning means being disposed in the front tensioning slot and being slidable relative to said plate along a line defined by said first positioning means, said second clamping means being affixed to said first tensioning means;
- means for tensioning said second ribbon end, said second tensioning means being disposed in the rear tensioning slot and being slidable relative to said plate along a line defined by said second positioning means, said fourth clamping means being affixed to said second tensioning means;
- means for fusing the two ribbon ends along a weld bead, said fusing means adjoining the two ribbon ends to form a continuous ribbon loop with two waste ribbon ends extending from the weld bead;
- means for cutting the two waste ribbon ends from the ribbon loop close to the weld bead;
- and
- means for selecting the optimum tension for the ribbon ends,
- wherein both said first and second tension means include means for adjusting the tension to be applied to said first and second ribbon ends, respectively, to an optimum tension.
Dependencies are inferred from the claim text.