Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1980-07-28
1982-05-25
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
1565831, 1565835, B32B 3118
Patent
active
043315020
ABSTRACT:
Parallel, spaced apart backing rods are carried by a rotating cylinder and serve the continuously supplied web. Back-pressure bars are extensible to engage and cooperate with welding bars. The backing rods and back-pressure bars are movable from and toward each other and provided with means for guiding a web with low friction. Those welding bars which are disposed near that sector of the cylinder in which the backing rods are disposed when they are retracted are moved concentrically to and at the same angular velocity as the back-pressure bars outside that surface of the cylinder over which the back-pressure bars are disposed. The back-pressure bars consist of rotatably mounted rolls, which are provided with a covering of elastic material which resists the welding heat. The welding bars have knife edge-like welding edges facing the rolls.
REFERENCES:
patent: 3551259 (1970-12-01), Schwarzkopf
patent: 3838631 (1974-10-01), Simpson et al.
patent: 4115183 (1978-09-01), Achelpohl et al.
Achelpohl Fritz
Mundus Friedhelm
Weston Caleb
Windmoller & Holscher
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