Signode AK200HDX-19, Operation, Parts And Safety Manual

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Next step; strap tension will be initiated. The camshaft brake Y38 will now be activated and the
brake Y36 is de-energised. The large clutch Y22 in the transmission is de-energised and the
small clutch Y37 will be activated. The strap drive changes rotation at high speed and the strap
is pulled out of the strap chute system and is applied around the package (during high tension
the camshaft brake Y38 will be de-energised after a certain delayed time).
When the strap has been applied to the package, the strap drive is slowed down by the strap
being tensioned and the function of the planetary gear shaft rotates the camshaft from position 1
into point 2. Hereby the camshaft has to overcome the spring pressure of the pre-tension spring
(see drwg. 100.07, pos. 17, page 58).
At point 2 the sensor "Pre-tension reached" (switching fast -slow) will be free. The diode does
not gleam anymore (see drwg. 464631, pos. 79, page 33). Therefore the small clutch Y37 is de-
energised and the large clutch Y22 is activated. The transmission is now running at slow speed.
Depend on the adjusted spring resistance for the max. strap tension the camshaft rotation will
be retarded. The strap drive rotates now at slow speed until the strap drive will be stopped by
the raising strap tension and the camshaft rotates from point 3 into point 4.
Because of the planetary gear drive function and depending on the raising strap tension and
raising resistance due to the risk of the cam disc a relative moment between the strap drive and
camshaft occurs, until the adjusted max. strap tension on camshaft point 4 has been reached.
At camshaft point 4 the sensor "Strap tension reached" will be activated for the second time
(diode lit). The brake Y36 will be activated and blocks the strap drive via the gears in position 4.
The tensioned strap will now be held by the strap drive. The camshaft rotates from point 4 into
position 5. In position 5 the strap end (loop) will be fully clamped by the loop grip (see drwg.
464655, pos. 7, Page 39). The sensor "Pre-tension reached" will be activated again.
With this switch point the camshaft brake Y38 will be activated and the motor M24 and the large
clutch Y22 will be de-energised.
Also the brake Y36 for strap drive will be de-energised after a delayed time (400 ms).
Next step, "strap end cutting at no load" will be initiated. During the strap loosen time "time set in
the program" the strap will be loosen and turned the strap drive for a short time in feeding
direction until the strap is without load.
After the strap loosen time and a additional delay time (500 ms) the strap can cut under no load.
The motor M24 will be energised in tension direction, the large clutch Y22 and strap drive brake
Y36 will be activated and the camshaft brake Y38 will be de-energised again.