Orca 80-99 Operation and Maintenance Manual

Operations

 

 

H.PULL ROLLER PRESSURE CONTROLS - Regulation for the upper pull roll pressure and up/down.

I.BOTTOM BRAKE CONTROL - Regulation for the bottom rear unwind brake.J.BOTTOM CLUTCH CONTROL - Regulation for the bottom rear rewind shaft’s clutch.Setup

Set up of the Orca laminator is quick and straightforward when instructions are followed directly.

When you first receive the Orca Laminator the nips must be set before operation. The procedures for setting the main and pull roll nips are on pages 8-1 and 8-2.

Laminator Roll Pressure:

1.You should use only the minimum amount of roll pressure needed to accomplish the task. While higher nip pressure can make the adhesive bond faster, excess pressure can damage the rollers. Wrinkles, bubbles and such have causes that generally cannot be cured with more pressure.

2.A typical roll pressure for soft substrates such as Foamcore or Orca-Board is between 20 to 30 pounds per square inch (PSI) or 32 to 205 kPa.

3.The range of typical values for hard substrates is 25 to 50 PSI, 170 to 345 kPa.

Loading the Film

Film is loaded on the appropriate unwinds. Instructions later in this section will cover loading and aligning film. For applications such as encapsulation, film will be fed from both top and bottom unwinds.

The process of loading and aligning film is the same for both the top and the bottom. There are two important

points to remember when loadingfilm:

CAUTION:

Assure that film is always mounted so that the adhesive side will face outward from the laminating roller.

1.The adhesive side of the film must be oriented away (on the outside) of the laminating roller. Otherwise it will immediately bond to the roller, creating a major clean- up project. Films have a shiny side and a dull side. The dull side is the one with the adhesive. Thus, the dull side should ALWAYS face outward from the laminating roll.

2.The film must be centered on the unwind for best performance. This is vital when two films are fed together. If the two films are not aligned, feed problems, wrinkles, excess glue on rolls and other assorted troubles will result.

CAUTION:

Unless the two films fed to the nip are carefully aligned, poor results will be seen.

Positioning Film

The following procedure is applicable to both the top and the bottom feed unwinds:

1.Remove the ball detent retaining pins and carefully remove the unwind/rewind shaft from its saddles. Pay particular attention to the drive side saddles. The drive side of the shafts must be oriented so as to not pry on the brake or clutch protrusion. To do so would irreparably damage both brakes and clutches.

2.Slide the film onto the unwind shaft.

3.Install the shaft back into its saddles again paying careful attention to the drive side end of the shaft. Return ball detent pins to secure the shaft in its saddles.

© GBC Films Group June 2000

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