Custom Collating Sheeter Stacker

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The Collator feeds, cuts, and stacks up to six layers of kraft paper into “books.” It comprises unwind stands, an accumulator, an increment and shear system, a dual gripper stacking system and a pallet conveyor system. Key functions include:

• Unwinding: Six unwind stands with side-shifting web-guiding systems support single material rolls. Each features electronic roll diameter monitoring, a     pneumatic disc brake for web tension (adjusted automatically as roll diameter decreases), a pacer nip roller set (speed controlled by accumulator position), a web splicing station for butt splicing, and a powered empty core lift for quick roll replacement. A roll diameter warning stops the unwind after the next cycle, with an override option.
• Accumulating: The accumulator stores material for increment cycles, controlled by unwind stands with position sensors for calculated feed rates. Additional web     guides for three webs ensure alignment. A clamp bar allows processing fewer than six rolls without removing idle webs.
• Incrementing and Shearing: Servo-driven increment drive rollers pay out programmed material lengths, with a cutter clamp securing the web post-increment for     better cut quality. A guillotine cutter, activated by a pneumatic valve and clutch/brake system, performs a single crankshaft revolution to sever the web. Blade bias cylinders, adjustable by the operator, ensure proper cut quality without excessive wear.
• Stacking: A dual gripper system uses servo-driven grippers for precise material handling. The pass-through gripper receives the material’s leading edge from the sheeter, closes, and transfers it to the stacker gripper. The stacker gripper deposits the sheet onto a pallet, with synchronized movements allowing higher throughput at slower speeds. The control system staggers alternating cuts for book organization. A hydraulic scissors lift table with a powered roller conveyor automatically lowers as the stack height increases, maintaining a constant stacking distance.
• Pallet Conveying: Pallet conveyors, controlled by photo switches, move empty pallets into the stacking area and full pallets out for forklift removal. Forklift pockets accommodate pallets without fork openings.

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Specifications: (as pictured)

· Maximum web width 67” (1.7m)– minimum web width 24” (.62m)

· Heavy duty A frame with 6” aluminum unwind air shafts

· Maximum weight 6600 lbs.(3000kg)

· Maximum diameter 64” (1.6m)

· Accumulators with dual loop PID sensors to control the tension and speed of unwinds.

· Powered arms to pick up the empty roll shaft at each unwind

· Dual Servo increment system.

· Electric motor driven gearbox and electric clutch on cutting blade.

· Down acting cutting blades (custom grind) 69” wide blades.

· Air bias, rubber nip roller (servo driven), on the 6” drive roller.

· 8 ft lengths (2.44m), 4.9 secs cut to cut

· 12 ft lengths (3.66m), 6.5 secs cut to cut

· Allen Bradley control platform

· Dual servo operated gripper type stacker

· Maximum sheet length of 172” (4.370m)  minimum sheet

· Stacker tolerance single land +/- ½”. (+/- 12mm)

· Maximum stack height 40”(1m)

· Decrementing table to stack on

· Mechanical pallet removal system as well as positioning empty pallet.

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Power:

Electrical 380 volts, 50 cycle, 3 phase

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*Full customization available