Method and apparatus for manufacturing window frames from plasti

Details Method and apparatus for manufacturing window frames from plasti Method and apparatus for manufacturing window frames from plasti

1998-04-20

2000-07-11

Sells, James

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1563042, 1563046, 1563099, 156499, 156580, B29C 6520

Patent

active

060867035

ABSTRACT:
A method and an apparatus for manufacturing window frames from plastic sections, wherein the plastic sections for always two window frames to be welded at a distance one above the other are placed in the double welding heads of a horizontal four-head welding machine, and wherein the double welding heads are arranged in pairs on a displaceable carriage so as to be shiftable relative to each other. The plastic sections are then clamped in the welding machine and are welded. After at least partial cooling, the welded window frames are released and removed. At least two support elements arranged at a short distance from one carriage and directed toward the other carriage are moved from two opposite sides underneath two welded window frames. At least after the double welding heads of the one carriage have been moved apart, both welded window frames are moved simultaneously and partially resting on the support elements laterally out of the four-head welding machine and are transferred to an intermediate station by a travel movement of the other carriage.

REFERENCES:
patent: 4752350 (1988-06-01), Schuster
patent: 4909892 (1990-03-01), Quinn et al.
patent: 4963219 (1990-10-01), Nichols et al.
patent: 4995935 (1991-02-01), Ganzberger
patent: 5439546 (1995-08-01), Brickenstein
patent: 5660670 (1997-08-01), Sturtz
patent: 5736000 (1998-04-01), Sturtz

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