Zero Pressure Accumulation Conveyor
Zero Pressure Accumulation Conveyor is used for accumulating cartons on a conveyor. This conveyor is photoeye controlled and air operated zones. No mechanical sensor rollers are used.
Specs and Features
Driving Belt – Black PVC 120 belt.
Bed – Roller bed width between frames, 15″, 21″, 27″, 33″, and 39″. 7″ x 1-1/2″ x 12 gauge powder painted formed steel channel frame, bolted together with butt couplings and floor supports. Frame sections are 10′ 0″ and 5′ 0″ long.
Tread Rollers – 1.9″ diameter x 16 gauge galvanized steel rollers spaced on 3″ or 6″ centers. Safety pop-out design prevents damage to product or harm to personnel if caught between belt and tread rollers.
Pressure Rollers- 1.9″ diameter x 16 gauge galvanized steel rollers with 7/16″ hex shaft spaced on 6″ and 12″ centers. Raised by air to drive tread rollers, lowered when sensing device is activated.
Sensing Device - NEMA 1 photoelectric sensor in each zone detects presence of product and activates accumulation feature in the trailing zone if upstream zone is occupied.
Power Supply – 120 VAC power supply controls accumulation feature with 24 VDC output.
Power supply will control 50 accumulation zones.
Air Requirements – Operating pressure is 20-35 psi on main trunk line.
Accumulation Zones – 24″, 30″, or 36″ long, air operated. Conveyor frame lengths change with zone lengths. NOTE: Zone length must be evenly divisible by roller centers.
Filter/Regulator – Supplied loose for mounting to conveyor side frame, with 3/8″ NPT ports.
35 to 40 psi recommended operating pressure with free air consumption of .0062 cu. ft. per sensor operation.
Guard Rails – 1-1/2″ x 1-1/2″ x 12 gauge galvanized angle guard rails, both sides.
NOTE: Product contact with guard rails will affect product flow.
Tail Pulley – 4″ diameter crowned with 1-3/16″ shaft.
Drive Pulley – 8″ diameter crowned and fully lagged with 1-7/16″ diameter shaft.
Located at in feed end of conveyor.
Snub Roller – 2-1/2″ diameter adjustable, located directly behind drive pulley.
2″ diameter at each end directly behind terminal pulleys
Return Idlers – 1.9″ diameter adjustable on 10’0″ centers.
Floor Supports – 31-1/2″ to 45-1/2″ adjustable from floor to top of rollers.
One support supplied at each end of conveyor and at each bed joint.
Take-Up – Screw type take-up located at end of conveyor to maintain belt tension.
12″ of belt take-up provided.