ACCESSORIES -

DRIVE SYSTEMS

We have been advised by customers that our DC Drive dispense units have a very stable output. They found no need to adjust the dispense speed as temperatures changed through the day. In comparison to other types of drive systems, these worked great. Since Bandit does not believe that a dispense system should never rely on temperature control to stabilize the output, we have produced Replacement Drive Packages for some other styles of dispense units.

We offer updating of drive systems on many brands of equipment. Typically this is a conversion to a DC or AC Inverter drive system, which allows for a very stable dispense rate for use with a robot (or hand). These drives eliminate adjustments to maintain a constant output related to temperature changes. If necessary, an encoder can be installed on the motor which we can hold drive speed a little tighter, but we find it rarely necessary. Picture below replaced a hydraulic drive.

BANDIT PURGE CONTROL SYSTEMS

Bandit purge control systems are stand alone systems for use with Bandit or EMC guns and air or electric triggers. The system utilizes a purge timer (duration of purge), between purge timer (time between purges) and an overall timer. The overall timer is used to time out the activity of the purge control if someone forgets to shut off the controller.

The typical Bandit DC Drive purge control is tied into the DC Drive system via a 24vac signal. This purge unit does not need air to operate. Air signal type dispense units will require air to the Purge Control which in turn will be used to control dispense machine and dispense gun. Other options exist if necessary.

The unit is installed by bolting to the floor, (hooking up air (1cfm@40+psi) if necessary) and electric (120V AC) and setting timers. Once the gun is inserted in the holster, a proximity sensor starts the purge system. A button for manual purge (over rides the purge cycle and resets the timers), on/off switch and purge control “activated light” are mounted on panel.

BANDIT SHOT METER CONTROL

This is in a Shot Meter Control which plugs directly into Bandit Dispense System controls. Unit picks up signals from the DC Drive Motor. Total counts per revolution of the pump can be as high as 1200 counts which gives the shot definition a great degree of accuracy. On a high precision dispense, we can incorporate a DC Braking system which creates an even tighter shot size. Typical shot sizes are plus/minus 4 grams depending on the output speed of the dispense system. At a lower speed, shot sizes become increasingly accurate to possibly plus/minus a gram. The repeatability is actually closer than the given numbers above. Setting the actual shot size requires determining the spin down of the motor, which once established remains quite consistent.

Shot meter can be set up in a variety of formats which trigger and reset the meter.