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Description


Feeding Station
The WPH 450-2 is equipped with a processor controlled timed-belt feeder (BFP). Set-up for carton length is simple using the "Teach-In" process.

Chain Conveyor Unit
This consists of four conveyor chains, adjustable in the running direction by quick change driver blocks for precise positioning, and in the cross direction by means of spindles. The chains run in plastic guides. The top guide bars can be lifted together pneumatically by push-button to facilitate set-up.

Vacuum Belt Transport Station
Rubber rollers take over control of the blanks from the chain station and transfer them via a vacuum belt to the delivery. The suction air is produced by vacuum pumps which are incorporated into the machine.

Foil Station
This station consists of one stub shaft unwind per lane, a web infeed, a rotary cross cutter and an application cylinder. The cross cutter and the application cylinder are both provided with suction and blower air control for transportation of the window/lining material. Even during machine operation the cut-off length of the material can be digitally set from minimum to maximum.

During operation, the position of the window patch relative to the blank is easily adjustable using a hand-wheel.

Behind the window application a high speed camera system provides quality control with regard to the position of the window. In case of a missing window, or a n error in placement, the respective blank will be ejected.

Heat sealing
After film application the blanks are transferred to a rotating cylinder carrying 12 heat seal tools, working against a special anvil belt. The temperature of all sealing tools is electronically controlled. At the end of the sealing process the blanks are transferred by top and bottom belts to the delivery belt. In this area cooling is provided to the blanks.

Delivery
The belts have a separate drive and the shingling can be set digitally.

Counter/ Control Devices
The basic machine is completed by a digital speed counter and a photocell-based counter for total production figures along with the following control devices:                   
1 jam control directly behind the feeder
2 jam control in the blank delivery section

©Heiber + Schröder Maschinenbau GmbH, Feldheiderstraße 52, D-40699 Erkrath, Germany, 
Phone: +49-2104-9376-0, email: info@heiber-schroeder.com