- Forming technique is greatly
Modernized, many products which were produced by conventional
methods can now be produced on knuckle joint Presses more economically
- to close tolerances those eliminating subsequent machining.
These presses are designed for work requiring slow powerful
pressure close to bottom stroke, suiting to work involving coining.
Embossing, extruding, beading, sizing and swaging operations.
- Knuckle joint presses have virtually
eliminated use of expensive machines for subsequent operations
by producing components to close tolerances and these machines
can be equipped with automatic feeding devices to facilitate
material handling and speedy production
- Regarding press cycle, from
production point of view idle stroke is driven at high speed
until mould touches material and forming takes place at slow
speed exerting full rated machine capacity. The sketch will
show the difference of moving curved lines of knuckle joint
press and an eccentric press, where stroke length is ame, the
dwell increases efficiency and accuracy of formed components.
- The knuckle type drive of presses
thus develops considerable power and tremendous mechanical advantage
near bottom stroke. Slide adjustment is easily accomplished
by taper wedge placed on upper portion of knuckle mechanism
either manually or with motive power at extra cost.
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FRAME: Consists
of two or several members assembled by the tiebars made of special
steel and shrunk in position. CRANKSHAFT:
Forged from solid billet is machined and ground all over and runs
in two bronze bearings which is well lubricated from centralized
system.
CLUTCH AND BRAKE: Low inertia
multidisc clutch and brake is used for transmitting Power to the
machine. Wear adjustment is automatically compensated by little
additional movement of inbuilt air cylinder.
PNEUMATIC COUNTER BALANCE:
Slides are counter balanced with Pneumatic cylinders to eliminate
any possibility of its running ahead of specified speed and also
to counteract possibility of rebound due to bottom ejector.
SAFETY: All presses are equipped
with pneumatically operated safety controls with provision of
single and continuous stroking, inching and two hand operation
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