Description
Feeding Station
The WPHC has been designed for combination with different mobile feeders: Timed Vacuum Belt Feeder, type BF or Electronically Controlled Belt Feeder, type EF. All feeders can be connected in a minimum of time, by mechanical gear fork and electrical clutch. Detailed information about different feeder systems can be obtained on request.
Vacuum Belt Transport Station
Following the feeder and the chain conveyor unit, the blanks are taken over by rubber rollers and are transferred by vacuum belts to the delivery. Thanks to this system, neither lateral nor top guides are required. This eliminates adjustment work and grants a perfect glue application and careful handling of the printed blank side.
Gluing Station
The gluing system combines both the advantages of a two roller gluing station with a driven metering roller covering the whole gluing section and those of a glue application limited from both sides with side scraper and fixed doctor blade. Thus this system offers the optimum solution for every possible application.
To set the stencil cylinder in running direction, there is a motorised stepless adjustment. In cross direction, it is set by spindles with hand wheel (for each lane on two lane machines). Even during machine operation, the stencil position can be rectified, to guarantee a precise glue application.
For cleaning purposes, the gluing unit can be withdrawn from the machine by lateral easy-running guides.
The gluing stencils can be prepared on a separate stencil preparation table provided with a scale outside the machine. They are glued onto a stencil blanket. The complete mounted stencil is clamped onto the stencil cylinder. At the end of a production run, the mounted stencil can be taken off and stored for future use.
Foil and Lining Material Station
This station consists of a servo-driven expansion unwind shaft, a web feed, a rotary cross cutter and an application cylinder. The application cylinder is 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.
The position of the window/lining material in relation to the blank is digitally adjustable in running direction without stopping the machine.
Delivery
The whole section can be moved sideways allowing easy access to film unwind shafts and provides direct access for knife adjustment.
The belts have a separate drive, the shingling can be set digitally.
Automatic set-up
The set-up in running direction is made by entering the following data:
blank length, window length, distance between leading edge of window and rear edge of carton. This automatically determines the positions and relative speeds of the squaring chain, stencil cylinder, vacuum cylinder, knife cylinder and drawing rollers. No manual set up work in running direction is required.
All monitoring functions as well as vacuum air and blowing air timing can be set easily on the display.
With the Electronically Controlled Belt Feeder (Type EF) also the position and relative speed of the feeder is integrated in the automatic set-up.
All set-up data including monitoring functions can be stored for repeat orders.
Counter/ Control Devices
The delivery scope of the basic machine is completed with a digital speed counter, a counter for the total production figures with photocell as well as the following control devices:
| 1 | blank positioning control behind the feeder, in order to avoid jam in the chain conveyor unit |
| 2 | jam control in the blank delivery section |
On request, further control devices can be supplied, e. g. for missing film or lining material on the blanks or for the end of a reel.
Tele-service
As the complete machine control and servo drives are handled by a high-end PLC, it is possible to link the machine via telephone to the H+S host computer for diagnostics and the downloading of programs or up-dates.
Drive
The machine drive is carried out by maintenance-free servo motors. This minimises the amount of mechanical drive parts such as toothed belts and gears, guaranteeing tight tolerances over a long period of time.
Statistic data
can be generated on request.
All technical data subject to alteration.