Metal working – Means to assemble or disassemble – With magazine supply
Patent
1998-07-02
2000-12-12
Hughes, S. Thomas
Metal working
Means to assemble or disassemble
With magazine supply
292435, B23Q 710
Patent
active
061581143
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The subject of this invention is an apparatus for placement of angle plates in ventilation duct flanges.
The invention is known in the United States under the U.S. Pat. No. 5,283,944 as an apparatus for placement of angle plates in transverse duct flanges, comprising a base plate which supports the ventilation duct, a blocking device to block the duct into position, a feeding device to move the angle plate until it reaches the corner of blocked ventilation duct, a fastening device to mate the angle plate to the duct flange. The feeding device consists of a slider to feed the lowest angle plate from the supply hopper towards the ventilation duct. Angle plates fed from the supply hopper must be shaped in such a way as to move freely towards the ventilation duct.
SUMMARY OF THE INVENTION
The apparatus for placement of angle plates in ventilation duct flanges consists of: a blocking device to block the ventilation duct on a platen, a feeding device of angle plates including a slider, said slider being stably joined to a piston-rod of the cylinder to move to-and-fro along a guide bar, a supply hopper of angle plates located above said feeding device, a fastening device to fasten angle plates in flanges of said ventilation ducts and a clamping device to clamp the flange edges on said angle plate. The feeding device of angle plates comprises a movable double arm carrier located on the base plate. Carrier arms have oval holes with stops secured to said base plate. Oval holes of the carrier and the oblong hole in the base plate have oblong axes parallel to the direction of slider movement. Carrier arms end with shaped clamps, whereas internal parts of carrier arms have the same shape as the external part of said angle plate being a little larger than it. The supply hopper of angle plates has a shape of an angle bar with arms separated a little more than 90.degree. and with edges outwardly bent out twice as seen from above. Angle plates stacked in the supply hopper are fastened on the carrier during the full placement cycle.
The guide bar is located in the lower part of the base plate and in the working plane as the slider. The base plate has a port shaped like an angle plate and also an oblong hole. The slider has an oblong slot and a socket. A pin which is fixed to the carrier extends through the oblong hole into the oblong slot in such a way that the carrier is shifted by the slider in the last stage of each movement. The working plane of the slider has a furrow whose span is slightly narrower than that of the angle plate. The guide is secured to the front of the base plate above the furrow and with the backward movement of the carrier, the lowest angle plate in the supply hopper is caught by carrier arms and pushed forward. As the angle plate moves forward, it drops through the port and onto the slider working plane. Forward movement of the slider pushes the socket to reach the corner of the angle plate and transports the angle plate towards the ventilation duct. The corner of the angle plate reaches the guide, causing the arms of the angle plate to rise.
This apparatus is universal. It may be used with differently shaped angle plates because the feed of angle plates from the hopper is achieved by an appropriately shaped carrier design. This apparatus offers accurate and solid attachment of angle plates in ventilation duct flanges.
BRIEF DESCRIPTION OF THE DRAWINGS
The subject of this invention is presented on drawings, where FIG. 1--side view, FIG. 2--top view, FIG. 3--top view of a carrier in extreme positions of the slider, FIG. 4--cross-section of a carrier in a slider front position.
DETAILED DESCRIPTION
The apparatus comprises the blocking device 2 of the ventilation duct 3 installed on the platen 1, a feeding device 4 of the angle plate 5, a fastening device 6 to fasten the angle plate 5 in the ventilation duct 3 flange 7 and a clamping device 8 to clamp the ventilation duct 3 flange 7 on angle plate 5 edges. The feeding device 4 of the angle plate 5 comprises a doubl
REFERENCES:
patent: 2995811 (1961-08-01), Erdmann
patent: 3412895 (1968-11-01), Hilton
patent: 3543376 (1970-12-01), Lovell et al.
patent: 4178672 (1979-12-01), Amico et al.
patent: 4989438 (1991-02-01), Simon
patent: 5283944 (1994-02-01), Goodhue
patent: 5448815 (1995-09-01), Kolesar
Hughes S. Thomas
Jimenez Marc
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