18 Rev. 00
3.2 Operation
The crimping machine GAMMA is designed and constructed to join and close profile corners
through crimping. The entire machining cycle is controlled by pneumatic cylinders built inside the
machine bed, exclusive of the vertical cylinder (5, fig. 3.1) put on the worktable. For this reason the
machine is supplied exclusively with air supply from outside (6÷7 bar).
The machine operation is semiautomatic and every machining cycle is performed after previous
user's consent.
The machining cycle is very simple: once the profile is manually positioned against the reference
works (8, fig. 3.1) (after opening the safety cover), the user must close the cover in order to allow
the clamp's movement (7, fig. 3.1). The bracing clamp rotates from the machine bed and then moves
forward until it presses the internal profile corner.
Now, the user can active the profile crimping, which comes by means of knives (6, fig. 3.1) built on
the crimping heads.
In particular, the clamp's rotation is reached by means of the pneumatic cylinder controlled by the
pneumatic end-stroke built on the cylinder for clamp's forward movement. It allows to activate the
rotation only when the clamp is in the backward position.
The forward movement of the clamp is reached be means of the oleo-pneumatic cylinder driven by
an oil vessel supplied with pressure of 2,5 bar. The air goes into the vessel causing the oil's
compression that generates the forward movement of the clamp until the end-stroke; then the special
valve blocks the oil inside in order to allow the clamp to stay in position during the crimping cycle.
The crimping knives are driven by the other cylinder, vertically put inside the machine bed, which
activates a leverage actuating simultaneously the forward movement of the crimping knives. Together
with the knives is activated the vertical cylinder.
All movements are controlled through the pneumatic end-strokes (also control of the cover).
Various regulations of the machine are effected through the manual devices and by help of the
graduated scales.
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