Paper bag machinery fixed length sealing and cutting, this positioning system is fixed length positioning system, only request that the speed of sealing and cutting movement match with the speed of bag feeding, reach the request of fixed length sealing and cutting; The other is the positioning system of print bag. The positioning system of print bag is the tracking of positioning. It is necessary for the location of each sealing and cutting request to fall at the specified marking position.
And because the interval S between the photoelectric eye and sealing and cutting of the paper bag logo is a fixed value, the change of bag length will inevitably affect the relationship between the bag feeding speed and sealing and cutting speed. Therefore, in order to realize the active positioning of paper bag machine, it is necessary to make a certain function adjustment between the bag length and the interval S. But this is only useful for sealing and cutting print bags, not for sealing and cutting paper bags.
Sealing and cutting machine active positioning system through the photoelectric signal sensor active check the sealing and cutting machine to the main motor control frequency, and then another photoelectric signal into pulse number and the number of pulses sensor check to compare, and adjust the paper bag machine feed the frequency of the stepper motor, to get to change the feeding speed, make it adapt to seal and cut the main motor sports.
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