Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1979-06-04
1981-09-15
Goolkasian, John T.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
156510, 156261, 156498, 156520, 29DIG1, B32B 3100, B23P 1300
Patent
active
042895685
ABSTRACT:
A machine for applying particularly configured pieces of thermally-activated tape to a heated substrate, such as a continuous strip of lead frames, it is capable of long term, high speed operation without becoming fouled with tape pieces or residual adhesive. A drop-through die assembly to blank the tape pieces is mounted for reciprocal movement to and from the metal strip normally supported in spaced relation beneath the assembly. Cooling fluid is circulated through the die and stripper plate of the die assembly for dissipating heat generated in the punch during the blanking operation. This cooling feature together with the normally spaced arrangement of the die assembly and the heated substrate, serves to maintain the temperature of the punch well below the activating temperature of the tape, whereby the tendency of the punch to collect a build-up of adhesive and tape pieces is virtually eliminated.
REFERENCES:
patent: 1921808 (1933-08-01), Cohn
patent: 3438428 (1969-04-01), Balamuth et al.
Brimmer Alan
Trotsky Alex
Arnold Engineering Company
Falasco Louis
Goolkasian John T.
Williamson John K.
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