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Auto cardboard palletizing, strap& wrap line

Auto cardboard packaging system

1. Equipments specifications

1.1 Palletizing machine (1 set)

 Structural style: articulated robot with 4 axles

 Picking up one cardboard bundle each time.

 Net weight capacity≤ 30kg.

 Working radius:R=3050 mm.

 Rated pressure (0.5~0.7 MPa)

 Cycle time:<5 s/cycle.

 Gripper: Clamp& sucking unit together

 Equipped with safety fence high two meters, no entry to working area.

 Driven by AC servo motors

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1.2 Pallets dispenser(1set)

 Capacity: 15 pieces of pallets

 Working efficiency 10m/min.

 Lifting platform keep stable working capacity for heavier loads, also with precise positioning and compact structure.

 Pallets dispensing is driven by pneumatic.

 Equipped together with chain conveyor

Chain size: C12A

Conveying speed: 12meter/min

1.3 Roller conveyor(7sets)

 Conveying speed: 12m/min

 Height of conveying machine: 600mm

 Motor Brand: SEW

 Operated manually or automatically

 Diameter of roller: Φ76mm

 Distance between rollers: 119mm

 Conveying chains: 10A

1.4 Centering device(1 set)

 Driven by pneumatic

 Work together and being equipped with roller conveyor.

1.5 Auto pallets strapping machine(1set)

 Design requirement

The whole cardboard pallets will be handled to the position for PET strapping by two bands .

Way of sealing: Friction.

 Top compression:3000kg

 Strapping distance:Min 400mm max 1000mm

 Strapping tension is adjustable, with the bands PET.

 Strapping speed:15 seconds/strapping,Strapping percent of pass≥99.9%。

 Deviation rate of strapping≤30mm,with good band straightness and flatness

 The adhesive strength: ≥ 80% of PET tensile strength i.e. 1200N。

 Except the auto working function, it is also could be manually operated, and switched over easily between manual and auto.

 Auto conveyor stop : After the pallets are handled away, the conveyor will stop automatically after being sensed by the photo eye, which save a lot of operating cost and improve the machine service life.

 It is function of “Free from working”, the pallets will not be strapped when the strapper is set at “free”, thus the operator can handle the packaging process according to needs.

 The lance passing, turntable rotating is powered by electric with auto frequency adjusting, which ensure the machine softly start, softly stop and run stably.

 Strapping head

Rated power:3kW

Tension force(adjustable):200 – 2500 N

Sealing time:1,8 s

Sealing way: Friction

The adhesive strength:80%

Band width: 9 - 16 mm

Band thickness:0.6—0.8mm

Bands type: PP. PET

 Technical data

Strapping head:Model no. VK10K120-16 (Germany)

Bands thread time:4.6 m/s

Sealing length:50mm

 The distance between two bands is adjustable

The bands could be cut by high frequency friction, saving cost and convenient for bands roll changing.

Strapping success rate: 99.9%,bias ratio: 0-1.5mm

1.6 Fully auto rotary arm stretch wrapper(1set)

 Control system

Separate electrical cabinet, SIEMENS PLC programmable control system.

SIEMENS touch screen for interface between machine and human. It shows the running status and failure warning for convenience of trouble shooting.

Photo eye for auto pallets height detection.

Function of reinforce to protect some area needed more wraps.

Setting time of over top.

 Film head:

Film head is with powered stretching unit, stretching ratio is 200%

(1 meter become 3 meters.)

Double chains for stale film head lifting.

The speed is adjustable for film head up/down and film feeding.

Wrapping cycles at the bottom and top is controlled separately.

Film feeding servo unit for easy film manual pulling.

Film head is installed with door for easy film changing. Stretch roller is powered by AC motor, and the film tension is adjusted by the inverter.

Film head with door: This design could be ease the film changing. It has changed the normal design that film thread with S way. It better avoid the hurt the hands of operator when change the film in the film head, with good protection for the operator’s safety.

 Auto film clamp& Cutting unit

Pneumatic controlled unit to enhance the working efficiency.

In the process of wrapping, the film blowing unit will blow up the film tail when the clamp open. The arm rotate and wrap the film tail under the wrapping film.

After wrapping, the film clamp unit clip the film end tail, at the same time of cutting, the heat sealing unit will seal the film together to avoid the film tails left.

Details

  • Jinan, Shandong, China
  • Beryl Lau

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