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ASDA-A3

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Motion Control

7.3.11 Horizontal packing machine applications

Horizontal packing machine mainly uses the rotary shear applications and phase compensation

in the E-Cam system to have the cutter cut the wrap at the right spot. The rotary shear system

can generate suitable E-Cam curves based on the initial mark position, cutter width, and cutting

length and time so it can cut precisely. With the auxiliary functions such as empty pack

prevention and miscutting prevention, you can avoid material waste or machine damage caused

by miscutting. The phase compensation function is to deal with issues such as inadequate

tension adjustment of the wrap, inconsistent length between marks, and slipping during

transmission. With this function, the cutter is able to quickly complete positioning and return to

the correct cutting spot.

System scheme

There are two parts in the packing machine system, the master axis (controller) and three slave

axes (conveyor, wrap feeder, and heat sealer with cutter). The controller is the pulse source for the

master axis. It outputs the pulse signals to the slave axis and performs logic condition check for

the auxiliary functions. The main function for the chain conveyor is to convey the contents to be

packed to the work station. The main function for the wrap feeder is to feed the wrap to the work

station for packing the content. The heat sealer with cutter is to seal and cut, which is the final step

of packing. See Figure 7.3.11.1.

7

(1) Wrap feeder (slave axis)

(2) Empty pack detection sensor

(3) Mark sensor for E-Cam phase alignment

(4) Heat sealer with cutter (slave axis)

(5) Mark sensor for synchronous Capture axis

(6) Chain conveyor (slave axis)

(7) Sensor for avoiding miscutting

Figure 7.3.11.1 Horizontal packing machine

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