Sheet-met′al Bend′ing-ma-chine′.
One for forming plates into shape between dies or rollers.
The folding-bar
H is secured to shafts which rotate in adjustable bearings on bars attached to a cam-shaft.
When the folding-bar is rotated, the cams cause the folding-knife
C to hold the metal while being bent, and the folding-bar is prevented from being raised too high by slotted straps.
A gage, adjustable by a screw
F, is arranged beneath the folding-blade to regulate the width of the lock.
The distance between the folding-bar and the bed-piece
B is adjustable by a screw to determine the suddenness of the bend at the angle.
Fig. 4963.
In
Fig. 4964, the frame
A is adapted to receive counterpart dies
K G of various curves, which are brought together by the movement of a lever, shaping the sheet of metal between them.
The flat die
O, also removable, is used in forming some descriptions of eaves-troughs.
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Sheet-metal bending-machine. |
Fig 4965 is a machine for forming rectangular pans.
The sheet of metal is placed on the block
D. and held by the hinged interior forming die-clamp
peg, secured by throwing up the lever
H, so that its slot
I, engages the arm
G. The sideforming plates
A A B C have camfaces
k k n n corresponding with each other in each plate, so that, on turning up the plate
B by means of the lever
L, they are caused to close in simultaneously upon the sides of the die-clamp
F E G, bending the sheet-metal to the required shape.
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Sheet-metal bending-machine. |
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Machine for forming bread-pans. |
