How to Adjust For Case Sizes (BEL 290T)

Use the following instructions to set up the BEL 290T to seal a particular case size with adjustments for case width (D) and closed height (H).

Disconnect machine electrics and compressed air before making any machine adjustments.

There are two main quick adjustments required to set up a particular case size:

1. Case Width Adjustment (D): Use the hand crank on the side of the bottom frame to move side-belt conveyors in and out to fit the width of the case.
2. Case Height Adjustment (H): Use the side hand crank on the top guarding frame to vertically adjust the machine head with the top flap folders and tape head to match the height of the closed case.

TIP: Open up the adjustments first to fully clear the height and width of case.

Use the case width crank and the scale at the front of the conveyor to set Dimension ‘D1’. The case width crank can be connected to the case width leadscrew on either side of the machine frame.

An alternative method to using the width scale is first to move the conveyor belts apart until they are wider than the case to be run. Then, adjust the conveyor belts back in until they lightly contact the case sides. Remove the case through the machine infeed and wind the belts in by a further one-half turn. This usually moves the conveyor to the correct position for a good grip on the case.

NOTE: Depending on case fill, weight, dimensional variations, and conveyor belt wear, it may be necessary to make minor adjustments to the settings to ensure best performance.

If necessary, loosen the bolts that lock the top major flap folding rods in position and adjust their position so that they capture the top case flaps and fold them down ahead of the top tape head as the case passes under them. The rods will need to be moved inward toward each other for narrow cases and outward for wide ones.

Adjust the side-compression rollers to control the tendency of the upper sides of the case to expand due to incorrect top flap folding and perhaps case overfilling. The side-compression rollers should minimize the gap between the top major flaps while they are being taped.

The top ski, used to fold down the front minor flap, is mounted on a slotted bracket that permits the ski to be adjusted towards or away from the machine infeed. Unless there is a wide variation in the width of cases or the size of case minor flaps, it should not require frequent re-adjustment.

The size of the case minor flap, which, with RSC cases, usually is a function of case width, determines the adjustment. When running cases that are close to the machines minimum and maximum width limits, or cases with different flap lengths (i.e. Flap-cut cases) it may be necessary to adjust the position of the ski to keep control of the minor flaps.

• To run most case widths close to the machine’s average width capabilities, the ski should be set at the midpoint on its mounting slot.
• With cases that are close to the maximum machine width capability, or with larger than normal minor flaps, the ski should be adjusted back, away from the machine infeed so that the rear minor flap does not hit the ski before it is fully folded down.
• With cases that are near the machine minimum width capability, or with narrower than normal minor flaps, the ski should be adjusted forward, towards the machine infeed, so that the rear minor flap is guided underneath the ski and does not spring open before it reaches the ski.

Use the case height crank and scale on the side of the arch to adjust the case height to Dimension ‘H’.