Service manual

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MACHINE TERMS

BLOW BOX / VACUUM GRID:

The blow box/vacuum grid is the cube shaped assembly located next to the peel edge on a blow box

applicator. Two axial fans mounted above the grid create the vacuum needed to hold the label in place

prior to application.

DANCER ARM:

The dancer arm is attached to the unwind block assembly with a shoulder bolt and a bushing. It appears

immediately after the unwind mandrel in the web path. The dancer arm has a roller at one end that rides

against the label liner and is interconnected to the mandrel tension disk with a spring. The dancer arm

maintains tension on the liner loop as it operates the brake on the unwind mandrel when labels are being

dispensed. The spring tension should be large enough to properly tension the web but still allow proper

operation of the brake. Do not over tension the dancer arm.

DRIVE ROLLER:

The drive roller is coupled to a stepper motor that provides the motive force for advancing the label liner.

The drive roller in conjunction with the spring loaded nip roller pull the label liner around the peel edge to

dispense a label onto the product, tamp pad, or blow box grid.

LABEL MANIFOLD:

The label manifold is the mounting block that attaches the label pad to the bottom of the tamp cylinder on

the applicator nose. The label manifold is a custom part that is manufactured exactly to the label size being

applied. If at any time the label size changes, a new label manifold must be purchased along with the label

pad.

LABEL PAD:

The label pad is a white delrin material mounted onto the label manifold at the bottom of the tamp cylinder

of the tamp applicator nose. The label pad is a custom part that is manufactured exactly to the label size

being applied. If at any time the label size changes, a new label pad must be purchased.

LABEL TENSION BRUSH ASSEMBLY:

This is an adjustable brush to help create tension on the label liner. The brush can be released while

threading the label liner.

NIP ROLLER:

The spring-loaded nip roller provides positive pressure to the label liner that passes between the drive and

nip roller assemblies. These rollers ensure that the liner does not slip during the label dispense cycle. The

tension on the rollers may be released by turning the knob located on the top of the nip roller assembly.